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asset/static/js/select/select2.full.js create mode 100755 asset/static/js/sidebar/classie.js create mode 100755 asset/static/js/sidebar/component.css create mode 100755 asset/static/js/sidebar/modernizr.custom.js create mode 100755 asset/static/js/sidebar/sidebarEffects.js create mode 100755 asset/static/js/skycons/skycons.min.js create mode 100755 asset/static/js/sparkline/jquery.sparkline.min.js create mode 100755 asset/static/js/switchery/switchery.min.js create mode 100755 asset/static/js/tags/jquery.tagsinput.min.js create mode 100755 asset/static/js/textarea/autosize.min.js create mode 100755 asset/static/js/validator/validator.js create mode 100755 asset/static/js/wizard/jquery.smartWizard.js create mode 100755 asset/static/less/custom.css create mode 100755 asset/template/index.tpl create mode 100644 asset/template/lorem.tpl create mode 100755 asset/template/page_404.tpl create mode 100755 asset/template/page_500.tpl create mode 100644 route/api.go create mode 100644 route/index.go create mode 100644 route/metric.go create mode 100644 route/page.go create mode 100644 route/static.go create mode 100644 util/renderer.go create mode 100644 util/tool.go create mode 100644 wiki.go diff --git a/.gitignore b/.gitignore index 672c2c0..956481f 100644 --- a/.gitignore +++ b/.gitignore @@ -1,7 +1,34 @@ -# Created by https://www.gitignore.io/api/ntellij,go,linux,osx,windows +# Created by https://www.gitignore.io/api/intellij,go,linux,osx,windows + +### Intellij ### +# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm +# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839 + +.idea +*.iml + +## File-based project format: +*.ipr +*.iws + +## Plugin-specific files: + +# IntelliJ +/out/ + +# mpeltonen/sbt-idea plugin +.idea_modules/ + +# JIRA plugin +atlassian-ide-plugin.xml + +# Crashlytics plugin (for Android Studio and IntelliJ) +com_crashlytics_export_strings.xml +crashlytics.properties +crashlytics-build.properties +fabric.properties -#!! ERROR: ntellij is undefined. Use list command to see defined gitignore types !!# ### Go ### # Compiled Object files, Static and Dynamic libs (Shared Objects) @@ -32,6 +59,7 @@ _testmain.go ### Linux ### *~ +*.swp # temporary files which can be created if a process still has a handle open of a deleted file .fuse_hidden* @@ -91,3 +119,6 @@ $RECYCLE.BIN/ # Windows shortcuts *.lnk +build/ +bind/ +wiki diff --git a/Godeps/Godeps.json b/Godeps/Godeps.json new file mode 100644 index 0000000..0da1b68 --- /dev/null +++ b/Godeps/Godeps.json @@ -0,0 +1,51 @@ +{ + "ImportPath": "amuz.es/go/wiki", + "GoVersion": "go1.5", + "Deps": [ + { + "ImportPath": "github.com/elazarl/go-bindata-assetfs", + "Rev": "57eb5e1fc594ad4b0b1dbea7b286d299e0cb43c2" + }, + { + "ImportPath": "github.com/flosch/pongo2", + "Comment": "v1.0-rc1-182-ga269242", + "Rev": "a269242022ae534b052672d6a9326a40560a63e7" + }, + { + "ImportPath": "github.com/gin-gonic/gin", + "Comment": "v1.0rc1-219-g3d002e3", + "Rev": "3d002e382355cafc15d706b92899b1961d5b79e9" + }, + { + "ImportPath": "github.com/gin-gonic/gin/binding", + "Comment": "v1.0rc1-219-g3d002e3", + "Rev": "3d002e382355cafc15d706b92899b1961d5b79e9" + }, + { + "ImportPath": "github.com/gin-gonic/gin/render", + "Comment": "v1.0rc1-219-g3d002e3", + "Rev": "3d002e382355cafc15d706b92899b1961d5b79e9" + }, + { + "ImportPath": "github.com/golang/glog", + "Rev": "23def4e6c14b4da8ac2ed8007337bc5eb5007998" + }, + { + "ImportPath": "github.com/golang/protobuf/proto", + "Rev": "c75fbf01dc6cb73649c4cd4326182c3e44aa9dbb" + }, + { + "ImportPath": "github.com/manucorporat/sse", + "Rev": "ee05b128a739a0fb76c7ebd3ae4810c1de808d6d" + }, + { + "ImportPath": "golang.org/x/net/context", + "Rev": "08f168e593b5aab61849054b77981de812666697" + }, + { + "ImportPath": "gopkg.in/go-playground/validator.v8", + "Comment": "v8.17.1", + "Rev": "014792cf3e266caff1e916876be12282b33059e0" + } + ] +} diff --git a/Godeps/Readme b/Godeps/Readme new file mode 100644 index 0000000..4cdaa53 --- /dev/null +++ b/Godeps/Readme @@ -0,0 +1,5 @@ +This directory tree is generated automatically by godep. + +Please do not edit. + +See https://github.com/tools/godep for more information. diff --git a/Godeps/_workspace/.gitignore b/Godeps/_workspace/.gitignore new file mode 100644 index 0000000..f037d68 --- /dev/null +++ b/Godeps/_workspace/.gitignore @@ -0,0 +1,2 @@ +/pkg +/bin diff --git a/Godeps/_workspace/src/bitbucket.org/ww/goautoneg/Makefile b/Godeps/_workspace/src/bitbucket.org/ww/goautoneg/Makefile new file mode 100644 index 0000000..e33ee17 --- /dev/null +++ b/Godeps/_workspace/src/bitbucket.org/ww/goautoneg/Makefile @@ -0,0 +1,13 @@ +include $(GOROOT)/src/Make.inc + +TARG=bitbucket.org/ww/goautoneg +GOFILES=autoneg.go + +include $(GOROOT)/src/Make.pkg + +format: + gofmt -w *.go + +docs: + gomake clean + godoc ${TARG} > README.txt diff --git a/Godeps/_workspace/src/bitbucket.org/ww/goautoneg/README.txt b/Godeps/_workspace/src/bitbucket.org/ww/goautoneg/README.txt new file mode 100644 index 0000000..7723656 --- /dev/null +++ b/Godeps/_workspace/src/bitbucket.org/ww/goautoneg/README.txt @@ -0,0 +1,67 @@ +PACKAGE + +package goautoneg +import "bitbucket.org/ww/goautoneg" + +HTTP Content-Type Autonegotiation. + +The functions in this package implement the behaviour specified in +http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html + +Copyright (c) 2011, Open Knowledge Foundation Ltd. +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + Neither the name of the Open Knowledge Foundation Ltd. nor the + names of its contributors may be used to endorse or promote + products derived from this software without specific prior written + permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + +FUNCTIONS + +func Negotiate(header string, alternatives []string) (content_type string) +Negotiate the most appropriate content_type given the accept header +and a list of alternatives. + +func ParseAccept(header string) (accept []Accept) +Parse an Accept Header string returning a sorted list +of clauses + + +TYPES + +type Accept struct { + Type, SubType string + Q float32 + Params map[string]string +} +Structure to represent a clause in an HTTP Accept Header + + +SUBDIRECTORIES + + .hg diff --git a/Godeps/_workspace/src/bitbucket.org/ww/goautoneg/autoneg.go b/Godeps/_workspace/src/bitbucket.org/ww/goautoneg/autoneg.go new file mode 100644 index 0000000..648b38c --- /dev/null +++ b/Godeps/_workspace/src/bitbucket.org/ww/goautoneg/autoneg.go @@ -0,0 +1,162 @@ +/* +HTTP Content-Type Autonegotiation. + +The functions in this package implement the behaviour specified in +http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html + +Copyright (c) 2011, Open Knowledge Foundation Ltd. +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + Neither the name of the Open Knowledge Foundation Ltd. nor the + names of its contributors may be used to endorse or promote + products derived from this software without specific prior written + permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + +*/ +package goautoneg + +import ( + "sort" + "strconv" + "strings" +) + +// Structure to represent a clause in an HTTP Accept Header +type Accept struct { + Type, SubType string + Q float64 + Params map[string]string +} + +// For internal use, so that we can use the sort interface +type accept_slice []Accept + +func (accept accept_slice) Len() int { + slice := []Accept(accept) + return len(slice) +} + +func (accept accept_slice) Less(i, j int) bool { + slice := []Accept(accept) + ai, aj := slice[i], slice[j] + if ai.Q > aj.Q { + return true + } + if ai.Type != "*" && aj.Type == "*" { + return true + } + if ai.SubType != "*" && aj.SubType == "*" { + return true + } + return false +} + +func (accept accept_slice) Swap(i, j int) { + slice := []Accept(accept) + slice[i], slice[j] = slice[j], slice[i] +} + +// Parse an Accept Header string returning a sorted list +// of clauses +func ParseAccept(header string) (accept []Accept) { + parts := strings.Split(header, ",") + accept = make([]Accept, 0, len(parts)) + for _, part := range parts { + part := strings.Trim(part, " ") + + a := Accept{} + a.Params = make(map[string]string) + a.Q = 1.0 + + mrp := strings.Split(part, ";") + + media_range := mrp[0] + sp := strings.Split(media_range, "/") + a.Type = strings.Trim(sp[0], " ") + + switch { + case len(sp) == 1 && a.Type == "*": + a.SubType = "*" + case len(sp) == 2: + a.SubType = strings.Trim(sp[1], " ") + default: + continue + } + + if len(mrp) == 1 { + accept = append(accept, a) + continue + } + + for _, param := range mrp[1:] { + sp := strings.SplitN(param, "=", 2) + if len(sp) != 2 { + continue + } + token := strings.Trim(sp[0], " ") + if token == "q" { + a.Q, _ = strconv.ParseFloat(sp[1], 32) + } else { + a.Params[token] = strings.Trim(sp[1], " ") + } + } + + accept = append(accept, a) + } + + slice := accept_slice(accept) + sort.Sort(slice) + + return +} + +// Negotiate the most appropriate content_type given the accept header +// and a list of alternatives. +func Negotiate(header string, alternatives []string) (content_type string) { + asp := make([][]string, 0, len(alternatives)) + for _, ctype := range alternatives { + asp = append(asp, strings.SplitN(ctype, "/", 2)) + } + for _, clause := range ParseAccept(header) { + for i, ctsp := range asp { + if clause.Type == ctsp[0] && clause.SubType == ctsp[1] { + content_type = alternatives[i] + return + } + if clause.Type == ctsp[0] && clause.SubType == "*" { + content_type = alternatives[i] + return + } + if clause.Type == "*" && clause.SubType == "*" { + content_type = alternatives[i] + return + } + } + } + return +} diff --git a/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/.gitignore b/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/.gitignore new file mode 100644 index 0000000..df826e0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/.gitignore @@ -0,0 +1,24 @@ +# Compiled Object files, Static and Dynamic libs (Shared Objects) +*.o +*.a +*.so + +# Folders +_obj +_test + +# Architecture specific extensions/prefixes +*.[568vq] +[568vq].out + +*.cgo1.go +*.cgo2.c +_cgo_defun.c +_cgo_gotypes.go +_cgo_export.* + +_testmain.go + +*.exe +*.test +*.out diff --git a/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/.travis.yml b/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/.travis.yml new file mode 100644 index 0000000..1de94bc --- /dev/null +++ b/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/.travis.yml @@ -0,0 +1,11 @@ +language: go +go: + - 1.2 + - 1.4 + - tip +before_install: + - go get github.com/axw/gocov/gocov + - go get github.com/mattn/goveralls + - if ! go get code.google.com/p/go.tools/cmd/cover; then go get golang.org/x/tools/cmd/cover; fi +script: + - $HOME/gopath/bin/goveralls -service=travis-ci \ No newline at end of file diff --git a/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/LICENSE b/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/LICENSE new file mode 100644 index 0000000..902306b --- /dev/null +++ b/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/LICENSE @@ -0,0 +1,201 @@ +Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "{}" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright 2015 Sean Dolphin + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. \ No newline at end of file diff --git a/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/README.md b/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/README.md new file mode 100644 index 0000000..0347366 --- /dev/null +++ b/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/README.md @@ -0,0 +1,66 @@ +# BQSchema + +**Documentation:** [![GoDoc](https://godoc.org/github.com/SeanDolphin/bqschema?status.png)](http://godoc.org/github.com/SeanDolphin/bqschema) +**Build Status:** [![Build Status](https://travis-ci.org/SeanDolphin/bqschema.svg?branch=master)](https://travis-ci.org/SeanDolphin/bqschema) +**Test Coverage:** [![Coverage Status](https://coveralls.io/repos/SeanDolphin/bqschema/badge.svg)](https://coveralls.io/r/SeanDolphin/bqschema) + + +BQSchema is a package used to created Google Big Query schema directly from Go structs and import BigQuery QueryResponse into arrays of Go structs. + +## Usage + +You can use BQSchema to automatically load Google Big Query results into arrays of basic Go structs. + +~~~ go +// main.go +package main + +import ( + "google.golang.org/api/bigquery/v2" + "github.com/SeanDolphin/bqschema" +) + +type person struct{ + Name string + Email string + Age int +} + +func main() { + // authorize the bigquery service + // create a query + result, err := bq.Jobs.Query("projectID", query).Do() + if err == nil { + var people []person + err := bqschema.ToStructs(result, &people) + // do something with people + } +} + +~~~ + +You can also use BQSchema to create the schema fields when creating new Big Query tables from basic Go structs. + +~~~ go +// main.go +package main + +import ( + "google.golang.org/api/bigquery/v2" + "github.com/SeanDolphin/bqschema" +) + +type person struct{ + Name string + Email string + Age int +} + +func main() { + // authorize the bigquery service + table, err := bq.Tables.Insert("projectID","datasetID", bigquery.Table{ + Schema:bqschema.MustToSchema(person{}) + }).Do() +} + +~~~ diff --git a/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/toSchema.go b/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/toSchema.go new file mode 100644 index 0000000..49a726a --- /dev/null +++ b/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/toSchema.go @@ -0,0 +1,151 @@ +package bqschema + +import ( + "errors" + "reflect" + "strings" + "time" + + "google.golang.org/api/bigquery/v2" +) + +var ( + ArrayOfArray = errors.New("Array of Arrays not allowed") + UnknownType = errors.New("Unknown type") + NotStruct = errors.New("Can not convert non structs") +) + +func ToSchema(src interface{}) (*bigquery.TableSchema, error) { + value := reflect.ValueOf(src) + t := value.Type() + + schema := &bigquery.TableSchema{} + + if t.Kind() == reflect.Struct { + schema.Fields = make([]*bigquery.TableFieldSchema, 0, t.NumField()) + for i := 0; i < t.NumField(); i++ { + sf := t.Field(i) + if sf.PkgPath != "" { // unexported + continue + } + v := pointerGuard(value.Field(i)) + + var name string + jsonTag := sf.Tag.Get("json") + switch jsonTag { + case "-": + continue + case "": + name = sf.Name + default: + name = strings.Split(jsonTag, ",")[0] + } + + tfs := &bigquery.TableFieldSchema{ + Mode: "required", + Name: name, + Type: "", + } + schema.Fields = append(schema.Fields, tfs) + + kind := v.Kind() + t, isSimple := simpleType(kind) + + if isSimple { + tfs.Type = t + } else { + switch kind { + case reflect.Struct: + tfs.Mode = "nullable" + if t, fields, err := structConversion(v.Interface()); err == nil { + tfs.Type = t + if t == "string" { + tfs.Mode = "required" + } + tfs.Fields = fields + } else { + return schema, err + } + case reflect.Array, reflect.Slice: + tfs.Mode = "repeated" + subKind := pointerGuard(v.Type().Elem()).Kind() + t, isSimple := simpleType(subKind) + if isSimple { + schema.Fields[i].Type = t + } else if subKind == reflect.Struct { + subStruct := reflect.Zero(pointerGuard(v.Type().Elem()).Type()).Interface() + if t, fields, err := structConversion(subStruct); err == nil { + schema.Fields[i].Type = t + schema.Fields[i].Fields = fields + + } else { + return schema, err + } + } else { + return schema, ArrayOfArray + } + default: + return schema, UnknownType + } + } + } + } else { + return schema, NotStruct + } + + return schema, nil +} + +func MustToSchema(src interface{}) *bigquery.TableSchema { + schema, err := ToSchema(src) + if err != nil { + panic(err) + } + return schema +} + +func simpleType(kind reflect.Kind) (string, bool) { + isSimple := true + t := "" + switch kind { + case reflect.Bool: + t = "boolean" + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + t = "integer" + case reflect.Float32, reflect.Float64: + t = "float" + case reflect.String: + t = "string" + default: + isSimple = false + } + return t, isSimple +} + +func structConversion(src interface{}) (string, []*bigquery.TableFieldSchema, error) { + v := reflect.ValueOf(src) + if v.Type().Name() == "Key" && strings.Contains(v.Type().PkgPath(), "appengine") { + return "string", nil, nil + } else if v.Type().ConvertibleTo(reflect.TypeOf(time.Time{})) { + return "timestamp", nil, nil + } else { + schema, err := ToSchema(src) + return "record", schema.Fields, err + } +} + +func pointerGuard(i interface{}) reflect.Value { + var v reflect.Value + var ok bool + v, ok = i.(reflect.Value) + if !ok { + if t, ok := i.(reflect.Type); ok { + v = reflect.Indirect(reflect.New(t)) + } + } + + if v.Kind() == reflect.Ptr { + v = reflect.Indirect(reflect.New(v.Type().Elem())) + } + return v +} diff --git a/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/toStructs.go b/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/toStructs.go new file mode 100644 index 0000000..f6550e6 --- /dev/null +++ b/Godeps/_workspace/src/github.com/SeanDolphin/bqschema/toStructs.go @@ -0,0 +1,76 @@ +package bqschema + +import ( + "reflect" + "strconv" + "strings" + + "google.golang.org/api/bigquery/v2" +) + +func ToStructs(result *bigquery.QueryResponse, dst interface{}) error { + var err error + value := reflect.Indirect(reflect.ValueOf(dst)) + + itemType := value.Type().Elem() + rowCount := len(result.Rows) + + nameMap := map[string]string{} + + for i := 0; i < itemType.NumField(); i++ { + field := itemType.Field(i) + nameMap[strings.ToLower(field.Name)] = field.Name + } + + items := reflect.MakeSlice(value.Type(), rowCount, rowCount) + for i := 0; i < rowCount; i++ { + item := reflect.Indirect(reflect.New(itemType)) + row := result.Rows[i] + for j, cell := range row.F { + schemaField := result.Schema.Fields[j] + + if name, ok := nameMap[strings.ToLower(schemaField.Name)]; ok { + field := item.FieldByName(name) + if field.IsValid() { + switch field.Kind() { + case reflect.Float64, reflect.Float32: + f, err := strconv.ParseFloat(cell.V.(string), 64) + if err == nil { + field.SetFloat(f) + } else { + return err + } + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + i, err := strconv.ParseInt(cell.V.(string), 10, 64) + if err == nil { + field.SetInt(i) + } else { + return err + } + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + i, err := strconv.ParseUint(cell.V.(string), 10, 64) + if err == nil { + field.SetUint(i) + } else { + return err + } + + case reflect.Bool: + b, err := strconv.ParseBool(cell.V.(string)) + if err == nil { + field.SetBool(b) + } else { + return err + } + case reflect.String: + field.Set(reflect.ValueOf(cell.V)) + } + + } + } + } + items.Index(i).Set(item) + } + value.Set(items) + return err +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/.gitignore b/Godeps/_workspace/src/github.com/Shopify/sarama/.gitignore new file mode 100644 index 0000000..3591f9f --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/.gitignore @@ -0,0 +1,24 @@ +# Compiled Object files, Static and Dynamic libs (Shared Objects) +*.o +*.a +*.so +*.test + +# Folders +_obj +_test +.vagrant + +# Architecture specific extensions/prefixes +*.[568vq] +[568vq].out + +*.cgo1.go +*.cgo2.c +_cgo_defun.c +_cgo_gotypes.go +_cgo_export.* + +_testmain.go + +*.exe diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/.travis.yml b/Godeps/_workspace/src/github.com/Shopify/sarama/.travis.yml new file mode 100644 index 0000000..776514b --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/.travis.yml @@ -0,0 +1,33 @@ +language: go +go: +- 1.4.3 +- 1.5.2 + +env: + global: + - KAFKA_PEERS=localhost:9091,localhost:9092,localhost:9093,localhost:9094,localhost:9095 + - TOXIPROXY_ADDR=http://localhost:8474 + - KAFKA_INSTALL_ROOT=/home/travis/kafka + - KAFKA_HOSTNAME=localhost + - DEBUG=true + matrix: + - KAFKA_VERSION=0.8.1.1 + - KAFKA_VERSION=0.8.2.2 + - KAFKA_VERSION=0.9.0.0 + +before_install: +- export REPOSITORY_ROOT=${TRAVIS_BUILD_DIR} +- vagrant/install_cluster.sh +- vagrant/boot_cluster.sh +- vagrant/create_topics.sh + +install: +- make install_dependencies + +script: +- make test +- make vet +- make errcheck +- make fmt + +sudo: false diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/CHANGELOG.md b/Godeps/_workspace/src/github.com/Shopify/sarama/CHANGELOG.md new file mode 100644 index 0000000..fd96b84 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/CHANGELOG.md @@ -0,0 +1,216 @@ +# Changelog + +#### Version 1.7.0 (2015-12-11) + +New Features: + - Preliminary support for Kafka 0.9 + ([#572](https://github.com/Shopify/sarama/pull/572)). This comes with several + caveats: + - Protocol-layer support is mostly in place + ([#577](https://github.com/Shopify/sarama/pull/577)), however Kafka 0.9 + renamed some messages and fields, which we did not in order to preserve API + compatibility. + - The producer and consumer work against 0.9, but the offset manager does + not ([#573](https://github.com/Shopify/sarama/pull/573)). + - TLS support may or may not work + ([#581](https://github.com/Shopify/sarama/pull/581)). + +Improvements: + - Don't wait for request timeouts on dead brokers, greatly speeding recovery + when the TCP connection is left hanging + ([#548](https://github.com/Shopify/sarama/pull/548)). + - Refactored part of the producer. The new version provides a much more elegant + solution to [#449](https://github.com/Shopify/sarama/pull/449). It is also + slightly more efficient, and much more precise in calculating batch sizes + when compression is used + ([#549](https://github.com/Shopify/sarama/pull/549), + [#550](https://github.com/Shopify/sarama/pull/550), + [#551](https://github.com/Shopify/sarama/pull/551)). + +Bug Fixes: + - Fix race condition in consumer test mock + ([#553](https://github.com/Shopify/sarama/pull/553)). + +#### Version 1.6.1 (2015-09-25) + +Bug Fixes: + - Fix panic that could occur if a user-supplied message value failed to encode + ([#449](https://github.com/Shopify/sarama/pull/449)). + +#### Version 1.6.0 (2015-09-04) + +New Features: + - Implementation of a consumer offset manager using the APIs introduced in + Kafka 0.8.2. The API is designed mainly for integration into a future + high-level consumer, not for direct use, although it is *possible* to use it + directly. + ([#461](https://github.com/Shopify/sarama/pull/461)). + +Improvements: + - CRC32 calculation is much faster on machines with SSE4.2 instructions, + removing a major hotspot from most profiles + ([#255](https://github.com/Shopify/sarama/pull/255)). + +Bug Fixes: + - Make protocol decoding more robust against some malformed packets generated + by go-fuzz ([#523](https://github.com/Shopify/sarama/pull/523), + [#525](https://github.com/Shopify/sarama/pull/525)) or found in other ways + ([#528](https://github.com/Shopify/sarama/pull/528)). + - Fix a potential race condition panic in the consumer on shutdown + ([#529](https://github.com/Shopify/sarama/pull/529)). + +#### Version 1.5.0 (2015-08-17) + +New Features: + - TLS-encrypted network connections are now supported. This feature is subject + to change when Kafka releases built-in TLS support, but for now this is + enough to work with TLS-terminating proxies + ([#154](https://github.com/Shopify/sarama/pull/154)). + +Improvements: + - The consumer will not block if a single partition is not drained by the user; + all other partitions will continue to consume normally + ([#485](https://github.com/Shopify/sarama/pull/485)). + - Formatting of error strings has been much improved + ([#495](https://github.com/Shopify/sarama/pull/495)). + - Internal refactoring of the producer for code cleanliness and to enable + future work ([#300](https://github.com/Shopify/sarama/pull/300)). + +Bug Fixes: + - Fix a potential deadlock in the consumer on shutdown + ([#475](https://github.com/Shopify/sarama/pull/475)). + +#### Version 1.4.3 (2015-07-21) + +Bug Fixes: + - Don't include the partitioner in the producer's "fetch partitions" + circuit-breaker ([#466](https://github.com/Shopify/sarama/pull/466)). + - Don't retry messages until the broker is closed when abandoning a broker in + the producer ([#468](https://github.com/Shopify/sarama/pull/468)). + - Update the import path for snappy-go, it has moved again and the API has + changed slightly ([#486](https://github.com/Shopify/sarama/pull/486)). + +#### Version 1.4.2 (2015-05-27) + +Bug Fixes: + - Update the import path for snappy-go, it has moved from google code to github + ([#456](https://github.com/Shopify/sarama/pull/456)). + +#### Version 1.4.1 (2015-05-25) + +Improvements: + - Optimizations when decoding snappy messages, thanks to John Potocny + ([#446](https://github.com/Shopify/sarama/pull/446)). + +Bug Fixes: + - Fix hypothetical race conditions on producer shutdown + ([#450](https://github.com/Shopify/sarama/pull/450), + [#451](https://github.com/Shopify/sarama/pull/451)). + +#### Version 1.4.0 (2015-05-01) + +New Features: + - The consumer now implements `Topics()` and `Partitions()` methods to enable + users to dynamically choose what topics/partitions to consume without + instantiating a full client + ([#431](https://github.com/Shopify/sarama/pull/431)). + - The partition-consumer now exposes the high water mark offset value returned + by the broker via the `HighWaterMarkOffset()` method ([#339](https://github.com/Shopify/sarama/pull/339)). + - Added a `kafka-console-consumer` tool capable of handling multiple + partitions, and deprecated the now-obsolete `kafka-console-partitionConsumer` + ([#439](https://github.com/Shopify/sarama/pull/439), + [#442](https://github.com/Shopify/sarama/pull/442)). + +Improvements: + - The producer's logging during retry scenarios is more consistent, more + useful, and slightly less verbose + ([#429](https://github.com/Shopify/sarama/pull/429)). + - The client now shuffles its initial list of seed brokers in order to prevent + thundering herd on the first broker in the list + ([#441](https://github.com/Shopify/sarama/pull/441)). + +Bug Fixes: + - The producer now correctly manages its state if retries occur when it is + shutting down, fixing several instances of confusing behaviour and at least + one potential deadlock ([#419](https://github.com/Shopify/sarama/pull/419)). + - The consumer now handles messages for different partitions asynchronously, + making it much more resilient to specific user code ordering + ([#325](https://github.com/Shopify/sarama/pull/325)). + +#### Version 1.3.0 (2015-04-16) + +New Features: + - The client now tracks consumer group coordinators using + ConsumerMetadataRequests similar to how it tracks partition leadership using + regular MetadataRequests ([#411](https://github.com/Shopify/sarama/pull/411)). + This adds two methods to the client API: + - `Coordinator(consumerGroup string) (*Broker, error)` + - `RefreshCoordinator(consumerGroup string) error` + +Improvements: + - ConsumerMetadataResponses now automatically create a Broker object out of the + ID/address/port combination for the Coordinator; accessing the fields + individually has been deprecated + ([#413](https://github.com/Shopify/sarama/pull/413)). + - Much improved handling of `OffsetOutOfRange` errors in the consumer. + Consumers will fail to start if the provided offset is out of range + ([#418](https://github.com/Shopify/sarama/pull/418)) + and they will automatically shut down if the offset falls out of range + ([#424](https://github.com/Shopify/sarama/pull/424)). + - Small performance improvement in encoding and decoding protocol messages + ([#427](https://github.com/Shopify/sarama/pull/427)). + +Bug Fixes: + - Fix a rare race condition in the client's background metadata refresher if + it happens to be activated while the client is being closed + ([#422](https://github.com/Shopify/sarama/pull/422)). + +#### Version 1.2.0 (2015-04-07) + +Improvements: + - The producer's behaviour when `Flush.Frequency` is set is now more intuitive + ([#389](https://github.com/Shopify/sarama/pull/389)). + - The producer is now somewhat more memory-efficient during and after retrying + messages due to an improved queue implementation + ([#396](https://github.com/Shopify/sarama/pull/396)). + - The consumer produces much more useful logging output when leadership + changes ([#385](https://github.com/Shopify/sarama/pull/385)). + - The client's `GetOffset` method will now automatically refresh metadata and + retry once in the event of stale information or similar + ([#394](https://github.com/Shopify/sarama/pull/394)). + - Broker connections now have support for using TCP keepalives + ([#407](https://github.com/Shopify/sarama/issues/407)). + +Bug Fixes: + - The OffsetCommitRequest message now correctly implements all three possible + API versions ([#390](https://github.com/Shopify/sarama/pull/390), + [#400](https://github.com/Shopify/sarama/pull/400)). + +#### Version 1.1.0 (2015-03-20) + +Improvements: + - Wrap the producer's partitioner call in a circuit-breaker so that repeatedly + broken topics don't choke throughput + ([#373](https://github.com/Shopify/sarama/pull/373)). + +Bug Fixes: + - Fix the producer's internal reference counting in certain unusual scenarios + ([#367](https://github.com/Shopify/sarama/pull/367)). + - Fix the consumer's internal reference counting in certain unusual scenarios + ([#369](https://github.com/Shopify/sarama/pull/369)). + - Fix a condition where the producer's internal control messages could have + gotten stuck ([#368](https://github.com/Shopify/sarama/pull/368)). + - Fix an issue where invalid partition lists would be cached when asking for + metadata for a non-existant topic ([#372](https://github.com/Shopify/sarama/pull/372)). + + +#### Version 1.0.0 (2015-03-17) + +Version 1.0.0 is the first tagged version, and is almost a complete rewrite. The primary differences with previous untagged versions are: + +- The producer has been rewritten; there is now a `SyncProducer` with a blocking API, and an `AsyncProducer` that is non-blocking. +- The consumer has been rewritten to only open one connection per broker instead of one connection per partition. +- The main types of Sarama are now interfaces to make depedency injection easy; mock implementations for `Consumer`, `SyncProducer` and `AsyncProducer` are provided in the `github.com/Shopify/sarama/mocks` package. +- For most uses cases, it is no longer necessary to open a `Client`; this will be done for you. +- All the configuration values have been unified in the `Config` struct. +- Much improved test suite. diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/CONTRIBUTING.md b/Godeps/_workspace/src/github.com/Shopify/sarama/CONTRIBUTING.md new file mode 100644 index 0000000..b0f107c --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/CONTRIBUTING.md @@ -0,0 +1,31 @@ +# Contributing + +Contributions are always welcome, both reporting issues and submitting pull requests! + +### Reporting issues + +Please make sure to include any potentially useful information in the issue, so we can pinpoint the issue faster without going back and forth. + +- What SHA of Sarama are you running? If this is not the latest SHA on the master branch, please try if the problem persists with the latest version. +- You can set `sarama.Logger` to a [log.Logger](http://golang.org/pkg/log/#Logger) instance to capture debug output. Please include it in your issue description. +- Also look at the logs of the Kafka broker you are connected to. If you see anything out of the ordinary, please include it. + +Also, please include the following information about your environment, so we can help you faster: + +- What version of Kafka are you using? +- What version of Go are you using? +- What are the values of your Producer/Consumer/Client configuration? + + +### Submitting pull requests + +We will gladly accept bug fixes, or additions to this library. Please fork this library, commit & push your changes, and open a pull request. Because this library is in production use by many people and applications, we code review all additions. To make the review process go as smooth as possible, please consider the following. + +- If you plan to work on something major, please open an issue to discuss the design first. +- Don't break backwards compatibility. If you really have to, open an issue to discuss this first. +- Make sure to use the `go fmt` command to format your code according to the standards. Even better, set up your editor to do this for you when saving. +- Run [go vet](https://godoc.org/golang.org/x/tools/cmd/vet) to detect any suspicious constructs in your code that could be bugs. +- Explicitly handle all error return values. If you really want to ignore an error value, you can assign it to `_`.You can use [errcheck](https://github.com/kisielk/errcheck) to verify whether you have handled all errors. +- You may also want to run [golint](https://github.com/golang/lint) as well to detect style problems. +- Add tests that cover the changes you made. Make sure to run `go test` with the `-race` argument to test for race conditions. +- Make sure your code is supported by all the Go versions we support. You can rely on [Travis CI](https://travis-ci.org/Shopify/sarama) for testing older Go versions diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/MIT-LICENSE b/Godeps/_workspace/src/github.com/Shopify/sarama/MIT-LICENSE new file mode 100644 index 0000000..8121b63 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/MIT-LICENSE @@ -0,0 +1,20 @@ +Copyright (c) 2013 Evan Huus + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/Makefile b/Godeps/_workspace/src/github.com/Shopify/sarama/Makefile new file mode 100644 index 0000000..b76e97a --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/Makefile @@ -0,0 +1,24 @@ +default: fmt vet errcheck test + +test: + go test -v -timeout 60s -race ./... + +vet: + go vet ./... + +errcheck: + errcheck github.com/Shopify/sarama/... + +fmt: + @if [ -n "$$(go fmt ./...)" ]; then echo 'Please run go fmt on your code.' && exit 1; fi + +install_dependencies: install_errcheck install_go_vet get + +install_errcheck: + go get github.com/kisielk/errcheck + +install_go_vet: + go get golang.org/x/tools/cmd/vet + +get: + go get -t diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/README.md b/Godeps/_workspace/src/github.com/Shopify/sarama/README.md new file mode 100644 index 0000000..63247b3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/README.md @@ -0,0 +1,36 @@ +sarama +====== + +[![GoDoc](https://godoc.org/github.com/Shopify/sarama?status.png)](https://godoc.org/github.com/Shopify/sarama) +[![Build Status](https://travis-ci.org/Shopify/sarama.svg?branch=master)](https://travis-ci.org/Shopify/sarama) + +Sarama is an MIT-licensed Go client library for [Apache Kafka](https://kafka.apache.org/) version 0.8 (and later). + +### Getting started + +- API documentation and examples are available via [godoc](https://godoc.org/github.com/Shopify/sarama). +- Mocks for testing are available in the [mocks](./mocks) subpackage. +- The [examples](./examples) directory contains more elaborate example applications. +- The [tools](./tools) directory contains command line tools that can be useful for testing, diagnostics, and instrumentation. + +### Compatibility and API stability + +Sarama provides a "2 releases + 2 months" compatibility guarantee: we support +the two latest stable releases of Kafka and Go, and we provide a two month +grace period for older releases. This means we currently officially support +Go 1.4 and 1.5, and Kafka 0.8.1 and 0.8.2, although older releases are still +likely to work. + +Sarama follows semantic versioning and provides API stability via the gopkg.in service. +You can import a version with a guaranteed stable API via http://gopkg.in/Shopify/sarama.v1. +A changelog is available [here](CHANGELOG.md). + +### Contributing + +* Get started by checking our [contribution guidelines](https://github.com/Shopify/sarama/blob/master/CONTRIBUTING.md). +* Read the [Sarama wiki](https://github.com/Shopify/sarama/wiki) for more + technical and design details. +* The [Kafka Protocol Specification](https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol) + contains a wealth of useful information. +* For more general issues, there is [a google group](https://groups.google.com/forum/#!forum/kafka-clients) for Kafka client developers. +* If you have any questions, just ask! diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/Vagrantfile b/Godeps/_workspace/src/github.com/Shopify/sarama/Vagrantfile new file mode 100644 index 0000000..4586d9a --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/Vagrantfile @@ -0,0 +1,19 @@ +# -*- mode: ruby -*- +# vi: set ft=ruby : + +# Vagrantfile API/syntax version. Don't touch unless you know what you're doing! +VAGRANTFILE_API_VERSION = "2" + +MEMORY = 3072 + +Vagrant.configure(VAGRANTFILE_API_VERSION) do |config| + config.vm.box = "ubuntu/trusty64" + + config.vm.provision :shell, path: "vagrant/provision.sh" + + config.vm.network "private_network", ip: "192.168.100.67" + + config.vm.provider "virtualbox" do |v| + v.memory = MEMORY + end +end diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/async_producer.go b/Godeps/_workspace/src/github.com/Shopify/sarama/async_producer.go new file mode 100644 index 0000000..44c0abf --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/async_producer.go @@ -0,0 +1,891 @@ +package sarama + +import ( + "fmt" + "sync" + "time" + + "github.com/eapache/go-resiliency/breaker" + "github.com/eapache/queue" +) + +// AsyncProducer publishes Kafka messages using a non-blocking API. It routes messages +// to the correct broker for the provided topic-partition, refreshing metadata as appropriate, +// and parses responses for errors. You must read from the Errors() channel or the +// producer will deadlock. You must call Close() or AsyncClose() on a producer to avoid +// leaks: it will not be garbage-collected automatically when it passes out of +// scope. +type AsyncProducer interface { + + // AsyncClose triggers a shutdown of the producer, flushing any messages it may + // have buffered. The shutdown has completed when both the Errors and Successes + // channels have been closed. When calling AsyncClose, you *must* continue to + // read from those channels in order to drain the results of any messages in + // flight. + AsyncClose() + + // Close shuts down the producer and flushes any messages it may have buffered. + // You must call this function before a producer object passes out of scope, as + // it may otherwise leak memory. You must call this before calling Close on the + // underlying client. + Close() error + + // Input is the input channel for the user to write messages to that they + // wish to send. + Input() chan<- *ProducerMessage + + // Successes is the success output channel back to the user when AckSuccesses is + // enabled. If Return.Successes is true, you MUST read from this channel or the + // Producer will deadlock. It is suggested that you send and read messages + // together in a single select statement. + Successes() <-chan *ProducerMessage + + // Errors is the error output channel back to the user. You MUST read from this + // channel or the Producer will deadlock when the channel is full. Alternatively, + // you can set Producer.Return.Errors in your config to false, which prevents + // errors to be returned. + Errors() <-chan *ProducerError +} + +type asyncProducer struct { + client Client + conf *Config + ownClient bool + + errors chan *ProducerError + input, successes, retries chan *ProducerMessage + inFlight sync.WaitGroup + + brokers map[*Broker]chan<- *ProducerMessage + brokerRefs map[chan<- *ProducerMessage]int + brokerLock sync.Mutex +} + +// NewAsyncProducer creates a new AsyncProducer using the given broker addresses and configuration. +func NewAsyncProducer(addrs []string, conf *Config) (AsyncProducer, error) { + client, err := NewClient(addrs, conf) + if err != nil { + return nil, err + } + + p, err := NewAsyncProducerFromClient(client) + if err != nil { + return nil, err + } + p.(*asyncProducer).ownClient = true + return p, nil +} + +// NewAsyncProducerFromClient creates a new Producer using the given client. It is still +// necessary to call Close() on the underlying client when shutting down this producer. +func NewAsyncProducerFromClient(client Client) (AsyncProducer, error) { + // Check that we are not dealing with a closed Client before processing any other arguments + if client.Closed() { + return nil, ErrClosedClient + } + + p := &asyncProducer{ + client: client, + conf: client.Config(), + errors: make(chan *ProducerError), + input: make(chan *ProducerMessage), + successes: make(chan *ProducerMessage), + retries: make(chan *ProducerMessage), + brokers: make(map[*Broker]chan<- *ProducerMessage), + brokerRefs: make(map[chan<- *ProducerMessage]int), + } + + // launch our singleton dispatchers + go withRecover(p.dispatcher) + go withRecover(p.retryHandler) + + return p, nil +} + +type flagSet int8 + +const ( + syn flagSet = 1 << iota // first message from partitionProducer to brokerProducer + fin // final message from partitionProducer to brokerProducer and back + shutdown // start the shutdown process +) + +// ProducerMessage is the collection of elements passed to the Producer in order to send a message. +type ProducerMessage struct { + Topic string // The Kafka topic for this message. + // The partitioning key for this message. Pre-existing Encoders include + // StringEncoder and ByteEncoder. + Key Encoder + // The actual message to store in Kafka. Pre-existing Encoders include + // StringEncoder and ByteEncoder. + Value Encoder + + // This field is used to hold arbitrary data you wish to include so it + // will be available when receiving on the Successes and Errors channels. + // Sarama completely ignores this field and is only to be used for + // pass-through data. + Metadata interface{} + + // Below this point are filled in by the producer as the message is processed + + // Offset is the offset of the message stored on the broker. This is only + // guaranteed to be defined if the message was successfully delivered and + // RequiredAcks is not NoResponse. + Offset int64 + // Partition is the partition that the message was sent to. This is only + // guaranteed to be defined if the message was successfully delivered. + Partition int32 + + retries int + flags flagSet +} + +const producerMessageOverhead = 26 // the metadata overhead of CRC, flags, etc. + +func (m *ProducerMessage) byteSize() int { + size := producerMessageOverhead + if m.Key != nil { + size += m.Key.Length() + } + if m.Value != nil { + size += m.Value.Length() + } + return size +} + +func (m *ProducerMessage) clear() { + m.flags = 0 + m.retries = 0 +} + +// ProducerError is the type of error generated when the producer fails to deliver a message. +// It contains the original ProducerMessage as well as the actual error value. +type ProducerError struct { + Msg *ProducerMessage + Err error +} + +func (pe ProducerError) Error() string { + return fmt.Sprintf("kafka: Failed to produce message to topic %s: %s", pe.Msg.Topic, pe.Err) +} + +// ProducerErrors is a type that wraps a batch of "ProducerError"s and implements the Error interface. +// It can be returned from the Producer's Close method to avoid the need to manually drain the Errors channel +// when closing a producer. +type ProducerErrors []*ProducerError + +func (pe ProducerErrors) Error() string { + return fmt.Sprintf("kafka: Failed to deliver %d messages.", len(pe)) +} + +func (p *asyncProducer) Errors() <-chan *ProducerError { + return p.errors +} + +func (p *asyncProducer) Successes() <-chan *ProducerMessage { + return p.successes +} + +func (p *asyncProducer) Input() chan<- *ProducerMessage { + return p.input +} + +func (p *asyncProducer) Close() error { + p.AsyncClose() + + if p.conf.Producer.Return.Successes { + go withRecover(func() { + for _ = range p.successes { + } + }) + } + + var errors ProducerErrors + if p.conf.Producer.Return.Errors { + for event := range p.errors { + errors = append(errors, event) + } + } + + if len(errors) > 0 { + return errors + } + return nil +} + +func (p *asyncProducer) AsyncClose() { + go withRecover(p.shutdown) +} + +// singleton +// dispatches messages by topic +func (p *asyncProducer) dispatcher() { + handlers := make(map[string]chan<- *ProducerMessage) + shuttingDown := false + + for msg := range p.input { + if msg == nil { + Logger.Println("Something tried to send a nil message, it was ignored.") + continue + } + + if msg.flags&shutdown != 0 { + shuttingDown = true + p.inFlight.Done() + continue + } else if msg.retries == 0 { + if shuttingDown { + // we can't just call returnError here because that decrements the wait group, + // which hasn't been incremented yet for this message, and shouldn't be + pErr := &ProducerError{Msg: msg, Err: ErrShuttingDown} + if p.conf.Producer.Return.Errors { + p.errors <- pErr + } else { + Logger.Println(pErr) + } + continue + } + p.inFlight.Add(1) + } + + if msg.byteSize() > p.conf.Producer.MaxMessageBytes { + p.returnError(msg, ErrMessageSizeTooLarge) + continue + } + + handler := handlers[msg.Topic] + if handler == nil { + handler = p.newTopicProducer(msg.Topic) + handlers[msg.Topic] = handler + } + + handler <- msg + } + + for _, handler := range handlers { + close(handler) + } +} + +// one per topic +// partitions messages, then dispatches them by partition +type topicProducer struct { + parent *asyncProducer + topic string + input <-chan *ProducerMessage + + breaker *breaker.Breaker + handlers map[int32]chan<- *ProducerMessage + partitioner Partitioner +} + +func (p *asyncProducer) newTopicProducer(topic string) chan<- *ProducerMessage { + input := make(chan *ProducerMessage, p.conf.ChannelBufferSize) + tp := &topicProducer{ + parent: p, + topic: topic, + input: input, + breaker: breaker.New(3, 1, 10*time.Second), + handlers: make(map[int32]chan<- *ProducerMessage), + partitioner: p.conf.Producer.Partitioner(topic), + } + go withRecover(tp.dispatch) + return input +} + +func (tp *topicProducer) dispatch() { + for msg := range tp.input { + if msg.retries == 0 { + if err := tp.partitionMessage(msg); err != nil { + tp.parent.returnError(msg, err) + continue + } + } + + handler := tp.handlers[msg.Partition] + if handler == nil { + handler = tp.parent.newPartitionProducer(msg.Topic, msg.Partition) + tp.handlers[msg.Partition] = handler + } + + handler <- msg + } + + for _, handler := range tp.handlers { + close(handler) + } +} + +func (tp *topicProducer) partitionMessage(msg *ProducerMessage) error { + var partitions []int32 + + err := tp.breaker.Run(func() (err error) { + if tp.partitioner.RequiresConsistency() { + partitions, err = tp.parent.client.Partitions(msg.Topic) + } else { + partitions, err = tp.parent.client.WritablePartitions(msg.Topic) + } + return + }) + + if err != nil { + return err + } + + numPartitions := int32(len(partitions)) + + if numPartitions == 0 { + return ErrLeaderNotAvailable + } + + choice, err := tp.partitioner.Partition(msg, numPartitions) + + if err != nil { + return err + } else if choice < 0 || choice >= numPartitions { + return ErrInvalidPartition + } + + msg.Partition = partitions[choice] + + return nil +} + +// one per partition per topic +// dispatches messages to the appropriate broker +// also responsible for maintaining message order during retries +type partitionProducer struct { + parent *asyncProducer + topic string + partition int32 + input <-chan *ProducerMessage + + leader *Broker + breaker *breaker.Breaker + output chan<- *ProducerMessage + + // highWatermark tracks the "current" retry level, which is the only one where we actually let messages through, + // all other messages get buffered in retryState[msg.retries].buf to preserve ordering + // retryState[msg.retries].expectChaser simply tracks whether we've seen a fin message for a given level (and + // therefore whether our buffer is complete and safe to flush) + highWatermark int + retryState []partitionRetryState +} + +type partitionRetryState struct { + buf []*ProducerMessage + expectChaser bool +} + +func (p *asyncProducer) newPartitionProducer(topic string, partition int32) chan<- *ProducerMessage { + input := make(chan *ProducerMessage, p.conf.ChannelBufferSize) + pp := &partitionProducer{ + parent: p, + topic: topic, + partition: partition, + input: input, + + breaker: breaker.New(3, 1, 10*time.Second), + retryState: make([]partitionRetryState, p.conf.Producer.Retry.Max+1), + } + go withRecover(pp.dispatch) + return input +} + +func (pp *partitionProducer) dispatch() { + // try to prefetch the leader; if this doesn't work, we'll do a proper call to `updateLeader` + // on the first message + pp.leader, _ = pp.parent.client.Leader(pp.topic, pp.partition) + if pp.leader != nil { + pp.output = pp.parent.getBrokerProducer(pp.leader) + pp.parent.inFlight.Add(1) // we're generating a syn message; track it so we don't shut down while it's still inflight + pp.output <- &ProducerMessage{Topic: pp.topic, Partition: pp.partition, flags: syn} + } + + for msg := range pp.input { + if msg.retries > pp.highWatermark { + // a new, higher, retry level; handle it and then back off + pp.newHighWatermark(msg.retries) + time.Sleep(pp.parent.conf.Producer.Retry.Backoff) + } else if pp.highWatermark > 0 { + // we are retrying something (else highWatermark would be 0) but this message is not a *new* retry level + if msg.retries < pp.highWatermark { + // in fact this message is not even the current retry level, so buffer it for now (unless it's a just a fin) + if msg.flags&fin == fin { + pp.retryState[msg.retries].expectChaser = false + pp.parent.inFlight.Done() // this fin is now handled and will be garbage collected + } else { + pp.retryState[msg.retries].buf = append(pp.retryState[msg.retries].buf, msg) + } + continue + } else if msg.flags&fin == fin { + // this message is of the current retry level (msg.retries == highWatermark) and the fin flag is set, + // meaning this retry level is done and we can go down (at least) one level and flush that + pp.retryState[pp.highWatermark].expectChaser = false + pp.flushRetryBuffers() + pp.parent.inFlight.Done() // this fin is now handled and will be garbage collected + continue + } + } + + // if we made it this far then the current msg contains real data, and can be sent to the next goroutine + // without breaking any of our ordering guarantees + + if pp.output == nil { + if err := pp.updateLeader(); err != nil { + pp.parent.returnError(msg, err) + time.Sleep(pp.parent.conf.Producer.Retry.Backoff) + continue + } + Logger.Printf("producer/leader/%s/%d selected broker %d\n", pp.topic, pp.partition, pp.leader.ID()) + } + + pp.output <- msg + } + + if pp.output != nil { + pp.parent.unrefBrokerProducer(pp.leader, pp.output) + } +} + +func (pp *partitionProducer) newHighWatermark(hwm int) { + Logger.Printf("producer/leader/%s/%d state change to [retrying-%d]\n", pp.topic, pp.partition, hwm) + pp.highWatermark = hwm + + // send off a fin so that we know when everything "in between" has made it + // back to us and we can safely flush the backlog (otherwise we risk re-ordering messages) + pp.retryState[pp.highWatermark].expectChaser = true + pp.parent.inFlight.Add(1) // we're generating a fin message; track it so we don't shut down while it's still inflight + pp.output <- &ProducerMessage{Topic: pp.topic, Partition: pp.partition, flags: fin, retries: pp.highWatermark - 1} + + // a new HWM means that our current broker selection is out of date + Logger.Printf("producer/leader/%s/%d abandoning broker %d\n", pp.topic, pp.partition, pp.leader.ID()) + pp.parent.unrefBrokerProducer(pp.leader, pp.output) + pp.output = nil +} + +func (pp *partitionProducer) flushRetryBuffers() { + Logger.Printf("producer/leader/%s/%d state change to [flushing-%d]\n", pp.topic, pp.partition, pp.highWatermark) + for { + pp.highWatermark-- + + if pp.output == nil { + if err := pp.updateLeader(); err != nil { + pp.parent.returnErrors(pp.retryState[pp.highWatermark].buf, err) + goto flushDone + } + Logger.Printf("producer/leader/%s/%d selected broker %d\n", pp.topic, pp.partition, pp.leader.ID()) + } + + for _, msg := range pp.retryState[pp.highWatermark].buf { + pp.output <- msg + } + + flushDone: + pp.retryState[pp.highWatermark].buf = nil + if pp.retryState[pp.highWatermark].expectChaser { + Logger.Printf("producer/leader/%s/%d state change to [retrying-%d]\n", pp.topic, pp.partition, pp.highWatermark) + break + } else if pp.highWatermark == 0 { + Logger.Printf("producer/leader/%s/%d state change to [normal]\n", pp.topic, pp.partition) + break + } + } +} + +func (pp *partitionProducer) updateLeader() error { + return pp.breaker.Run(func() (err error) { + if err = pp.parent.client.RefreshMetadata(pp.topic); err != nil { + return err + } + + if pp.leader, err = pp.parent.client.Leader(pp.topic, pp.partition); err != nil { + return err + } + + pp.output = pp.parent.getBrokerProducer(pp.leader) + pp.parent.inFlight.Add(1) // we're generating a syn message; track it so we don't shut down while it's still inflight + pp.output <- &ProducerMessage{Topic: pp.topic, Partition: pp.partition, flags: syn} + + return nil + }) +} + +// one per broker; also constructs an associated flusher +func (p *asyncProducer) newBrokerProducer(broker *Broker) chan<- *ProducerMessage { + var ( + input = make(chan *ProducerMessage) + bridge = make(chan *produceSet) + responses = make(chan *brokerProducerResponse) + ) + + bp := &brokerProducer{ + parent: p, + broker: broker, + input: input, + output: bridge, + responses: responses, + buffer: newProduceSet(p), + currentRetries: make(map[string]map[int32]error), + } + go withRecover(bp.run) + + // minimal bridge to make the network response `select`able + go withRecover(func() { + for set := range bridge { + request := set.buildRequest() + + response, err := broker.Produce(request) + + responses <- &brokerProducerResponse{ + set: set, + err: err, + res: response, + } + } + close(responses) + }) + + return input +} + +type brokerProducerResponse struct { + set *produceSet + err error + res *ProduceResponse +} + +// groups messages together into appropriately-sized batches for sending to the broker +// handles state related to retries etc +type brokerProducer struct { + parent *asyncProducer + broker *Broker + + input <-chan *ProducerMessage + output chan<- *produceSet + responses <-chan *brokerProducerResponse + + buffer *produceSet + timer <-chan time.Time + timerFired bool + + closing error + currentRetries map[string]map[int32]error +} + +func (bp *brokerProducer) run() { + var output chan<- *produceSet + Logger.Printf("producer/broker/%d starting up\n", bp.broker.ID()) + + for { + select { + case msg := <-bp.input: + if msg == nil { + goto shutdown + } + + if msg.flags&syn == syn { + Logger.Printf("producer/broker/%d state change to [open] on %s/%d\n", + bp.broker.ID(), msg.Topic, msg.Partition) + if bp.currentRetries[msg.Topic] == nil { + bp.currentRetries[msg.Topic] = make(map[int32]error) + } + bp.currentRetries[msg.Topic][msg.Partition] = nil + bp.parent.inFlight.Done() + continue + } + + if reason := bp.needsRetry(msg); reason != nil { + bp.parent.retryMessage(msg, reason) + + if bp.closing == nil && msg.flags&fin == fin { + // we were retrying this partition but we can start processing again + delete(bp.currentRetries[msg.Topic], msg.Partition) + Logger.Printf("producer/broker/%d state change to [closed] on %s/%d\n", + bp.broker.ID(), msg.Topic, msg.Partition) + } + + continue + } + + if bp.buffer.wouldOverflow(msg) { + if err := bp.waitForSpace(msg); err != nil { + bp.parent.retryMessage(msg, err) + continue + } + } + + if err := bp.buffer.add(msg); err != nil { + bp.parent.returnError(msg, err) + continue + } + + if bp.parent.conf.Producer.Flush.Frequency > 0 && bp.timer == nil { + bp.timer = time.After(bp.parent.conf.Producer.Flush.Frequency) + } + case <-bp.timer: + bp.timerFired = true + case output <- bp.buffer: + bp.rollOver() + case response := <-bp.responses: + bp.handleResponse(response) + } + + if bp.timerFired || bp.buffer.readyToFlush() { + output = bp.output + } else { + output = nil + } + } + +shutdown: + for !bp.buffer.empty() { + select { + case response := <-bp.responses: + bp.handleResponse(response) + case bp.output <- bp.buffer: + bp.rollOver() + } + } + close(bp.output) + for response := range bp.responses { + bp.handleResponse(response) + } + + Logger.Printf("producer/broker/%d shut down\n", bp.broker.ID()) +} + +func (bp *brokerProducer) needsRetry(msg *ProducerMessage) error { + if bp.closing != nil { + return bp.closing + } + + return bp.currentRetries[msg.Topic][msg.Partition] +} + +func (bp *brokerProducer) waitForSpace(msg *ProducerMessage) error { + Logger.Printf("producer/broker/%d maximum request accumulated, waiting for space\n", bp.broker.ID()) + + for { + select { + case response := <-bp.responses: + bp.handleResponse(response) + // handling a response can change our state, so re-check some things + if reason := bp.needsRetry(msg); reason != nil { + return reason + } else if !bp.buffer.wouldOverflow(msg) { + return nil + } + case bp.output <- bp.buffer: + bp.rollOver() + return nil + } + } +} + +func (bp *brokerProducer) rollOver() { + bp.timer = nil + bp.timerFired = false + bp.buffer = newProduceSet(bp.parent) +} + +func (bp *brokerProducer) handleResponse(response *brokerProducerResponse) { + if response.err != nil { + bp.handleError(response.set, response.err) + } else { + bp.handleSuccess(response.set, response.res) + } + + if bp.buffer.empty() { + bp.rollOver() // this can happen if the response invalidated our buffer + } +} + +func (bp *brokerProducer) handleSuccess(sent *produceSet, response *ProduceResponse) { + // we iterate through the blocks in the request set, not the response, so that we notice + // if the response is missing a block completely + sent.eachPartition(func(topic string, partition int32, msgs []*ProducerMessage) { + if response == nil { + // this only happens when RequiredAcks is NoResponse, so we have to assume success + bp.parent.returnSuccesses(msgs) + return + } + + block := response.GetBlock(topic, partition) + if block == nil { + bp.parent.returnErrors(msgs, ErrIncompleteResponse) + return + } + + switch block.Err { + // Success + case ErrNoError: + for i, msg := range msgs { + msg.Offset = block.Offset + int64(i) + } + bp.parent.returnSuccesses(msgs) + // Retriable errors + case ErrUnknownTopicOrPartition, ErrNotLeaderForPartition, ErrLeaderNotAvailable, + ErrRequestTimedOut, ErrNotEnoughReplicas, ErrNotEnoughReplicasAfterAppend: + Logger.Printf("producer/broker/%d state change to [retrying] on %s/%d because %v\n", + bp.broker.ID(), topic, partition, block.Err) + bp.currentRetries[topic][partition] = block.Err + bp.parent.retryMessages(msgs, block.Err) + bp.parent.retryMessages(bp.buffer.dropPartition(topic, partition), block.Err) + // Other non-retriable errors + default: + bp.parent.returnErrors(msgs, block.Err) + } + }) +} + +func (bp *brokerProducer) handleError(sent *produceSet, err error) { + switch err.(type) { + case PacketEncodingError: + sent.eachPartition(func(topic string, partition int32, msgs []*ProducerMessage) { + bp.parent.returnErrors(msgs, err) + }) + default: + Logger.Printf("producer/broker/%d state change to [closing] because %s\n", bp.broker.ID(), err) + bp.parent.abandonBrokerConnection(bp.broker) + _ = bp.broker.Close() + bp.closing = err + sent.eachPartition(func(topic string, partition int32, msgs []*ProducerMessage) { + bp.parent.retryMessages(msgs, err) + }) + bp.buffer.eachPartition(func(topic string, partition int32, msgs []*ProducerMessage) { + bp.parent.retryMessages(msgs, err) + }) + bp.rollOver() + } +} + +// singleton +// effectively a "bridge" between the flushers and the dispatcher in order to avoid deadlock +// based on https://godoc.org/github.com/eapache/channels#InfiniteChannel +func (p *asyncProducer) retryHandler() { + var msg *ProducerMessage + buf := queue.New() + + for { + if buf.Length() == 0 { + msg = <-p.retries + } else { + select { + case msg = <-p.retries: + case p.input <- buf.Peek().(*ProducerMessage): + buf.Remove() + continue + } + } + + if msg == nil { + return + } + + buf.Add(msg) + } +} + +// utility functions + +func (p *asyncProducer) shutdown() { + Logger.Println("Producer shutting down.") + p.inFlight.Add(1) + p.input <- &ProducerMessage{flags: shutdown} + + p.inFlight.Wait() + + if p.ownClient { + err := p.client.Close() + if err != nil { + Logger.Println("producer/shutdown failed to close the embedded client:", err) + } + } + + close(p.input) + close(p.retries) + close(p.errors) + close(p.successes) +} + +func (p *asyncProducer) returnError(msg *ProducerMessage, err error) { + msg.clear() + pErr := &ProducerError{Msg: msg, Err: err} + if p.conf.Producer.Return.Errors { + p.errors <- pErr + } else { + Logger.Println(pErr) + } + p.inFlight.Done() +} + +func (p *asyncProducer) returnErrors(batch []*ProducerMessage, err error) { + for _, msg := range batch { + p.returnError(msg, err) + } +} + +func (p *asyncProducer) returnSuccesses(batch []*ProducerMessage) { + for _, msg := range batch { + if p.conf.Producer.Return.Successes { + msg.clear() + p.successes <- msg + } + p.inFlight.Done() + } +} + +func (p *asyncProducer) retryMessage(msg *ProducerMessage, err error) { + if msg.retries >= p.conf.Producer.Retry.Max { + p.returnError(msg, err) + } else { + msg.retries++ + p.retries <- msg + } +} + +func (p *asyncProducer) retryMessages(batch []*ProducerMessage, err error) { + for _, msg := range batch { + p.retryMessage(msg, err) + } +} + +func (p *asyncProducer) getBrokerProducer(broker *Broker) chan<- *ProducerMessage { + p.brokerLock.Lock() + defer p.brokerLock.Unlock() + + bp := p.brokers[broker] + + if bp == nil { + bp = p.newBrokerProducer(broker) + p.brokers[broker] = bp + p.brokerRefs[bp] = 0 + } + + p.brokerRefs[bp]++ + + return bp +} + +func (p *asyncProducer) unrefBrokerProducer(broker *Broker, bp chan<- *ProducerMessage) { + p.brokerLock.Lock() + defer p.brokerLock.Unlock() + + p.brokerRefs[bp]-- + if p.brokerRefs[bp] == 0 { + close(bp) + delete(p.brokerRefs, bp) + + if p.brokers[broker] == bp { + delete(p.brokers, broker) + } + } +} + +func (p *asyncProducer) abandonBrokerConnection(broker *Broker) { + p.brokerLock.Lock() + defer p.brokerLock.Unlock() + + delete(p.brokers, broker) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/broker.go b/Godeps/_workspace/src/github.com/Shopify/sarama/broker.go new file mode 100644 index 0000000..46f06a0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/broker.go @@ -0,0 +1,395 @@ +package sarama + +import ( + "crypto/tls" + "fmt" + "io" + "net" + "strconv" + "sync" + "sync/atomic" + "time" +) + +// Broker represents a single Kafka broker connection. All operations on this object are entirely concurrency-safe. +type Broker struct { + id int32 + addr string + + conf *Config + correlationID int32 + conn net.Conn + connErr error + lock sync.Mutex + opened int32 + + responses chan responsePromise + done chan bool +} + +type responsePromise struct { + correlationID int32 + packets chan []byte + errors chan error +} + +// NewBroker creates and returns a Broker targetting the given host:port address. +// This does not attempt to actually connect, you have to call Open() for that. +func NewBroker(addr string) *Broker { + return &Broker{id: -1, addr: addr} +} + +// Open tries to connect to the Broker if it is not already connected or connecting, but does not block +// waiting for the connection to complete. This means that any subsequent operations on the broker will +// block waiting for the connection to succeed or fail. To get the effect of a fully synchronous Open call, +// follow it by a call to Connected(). The only errors Open will return directly are ConfigurationError or +// AlreadyConnected. If conf is nil, the result of NewConfig() is used. +func (b *Broker) Open(conf *Config) error { + if conf == nil { + conf = NewConfig() + } + + err := conf.Validate() + if err != nil { + return err + } + + if !atomic.CompareAndSwapInt32(&b.opened, 0, 1) { + return ErrAlreadyConnected + } + + b.lock.Lock() + + if b.conn != nil { + b.lock.Unlock() + Logger.Printf("Failed to connect to broker %s: %s\n", b.addr, ErrAlreadyConnected) + return ErrAlreadyConnected + } + + go withRecover(func() { + defer b.lock.Unlock() + + dialer := net.Dialer{ + Timeout: conf.Net.DialTimeout, + KeepAlive: conf.Net.KeepAlive, + } + + if conf.Net.TLS.Enable { + b.conn, b.connErr = tls.DialWithDialer(&dialer, "tcp", b.addr, conf.Net.TLS.Config) + } else { + b.conn, b.connErr = dialer.Dial("tcp", b.addr) + } + if b.connErr != nil { + b.conn = nil + atomic.StoreInt32(&b.opened, 0) + Logger.Printf("Failed to connect to broker %s: %s\n", b.addr, b.connErr) + return + } + + b.conf = conf + b.done = make(chan bool) + b.responses = make(chan responsePromise, b.conf.Net.MaxOpenRequests-1) + + if b.id >= 0 { + Logger.Printf("Connected to broker at %s (registered as #%d)\n", b.addr, b.id) + } else { + Logger.Printf("Connected to broker at %s (unregistered)\n", b.addr) + } + go withRecover(b.responseReceiver) + }) + + return nil +} + +// Connected returns true if the broker is connected and false otherwise. If the broker is not +// connected but it had tried to connect, the error from that connection attempt is also returned. +func (b *Broker) Connected() (bool, error) { + b.lock.Lock() + defer b.lock.Unlock() + + return b.conn != nil, b.connErr +} + +func (b *Broker) Close() error { + b.lock.Lock() + defer b.lock.Unlock() + + if b.conn == nil { + return ErrNotConnected + } + + close(b.responses) + <-b.done + + err := b.conn.Close() + + b.conn = nil + b.connErr = nil + b.done = nil + b.responses = nil + + atomic.StoreInt32(&b.opened, 0) + + if err == nil { + Logger.Printf("Closed connection to broker %s\n", b.addr) + } else { + Logger.Printf("Error while closing connection to broker %s: %s\n", b.addr, err) + } + + return err +} + +// ID returns the broker ID retrieved from Kafka's metadata, or -1 if that is not known. +func (b *Broker) ID() int32 { + return b.id +} + +// Addr returns the broker address as either retrieved from Kafka's metadata or passed to NewBroker. +func (b *Broker) Addr() string { + return b.addr +} + +func (b *Broker) GetMetadata(request *MetadataRequest) (*MetadataResponse, error) { + response := new(MetadataResponse) + + err := b.sendAndReceive(request, response) + + if err != nil { + return nil, err + } + + return response, nil +} + +func (b *Broker) GetConsumerMetadata(request *ConsumerMetadataRequest) (*ConsumerMetadataResponse, error) { + response := new(ConsumerMetadataResponse) + + err := b.sendAndReceive(request, response) + + if err != nil { + return nil, err + } + + return response, nil +} + +func (b *Broker) GetAvailableOffsets(request *OffsetRequest) (*OffsetResponse, error) { + response := new(OffsetResponse) + + err := b.sendAndReceive(request, response) + + if err != nil { + return nil, err + } + + return response, nil +} + +func (b *Broker) Produce(request *ProduceRequest) (*ProduceResponse, error) { + var response *ProduceResponse + var err error + + if request.RequiredAcks == NoResponse { + err = b.sendAndReceive(request, nil) + } else { + response = new(ProduceResponse) + err = b.sendAndReceive(request, response) + } + + if err != nil { + return nil, err + } + + return response, nil +} + +func (b *Broker) Fetch(request *FetchRequest) (*FetchResponse, error) { + response := new(FetchResponse) + + err := b.sendAndReceive(request, response) + + if err != nil { + return nil, err + } + + return response, nil +} + +func (b *Broker) CommitOffset(request *OffsetCommitRequest) (*OffsetCommitResponse, error) { + response := new(OffsetCommitResponse) + + err := b.sendAndReceive(request, response) + + if err != nil { + return nil, err + } + + return response, nil +} + +func (b *Broker) FetchOffset(request *OffsetFetchRequest) (*OffsetFetchResponse, error) { + response := new(OffsetFetchResponse) + + err := b.sendAndReceive(request, response) + + if err != nil { + return nil, err + } + + return response, nil +} + +func (b *Broker) send(rb requestBody, promiseResponse bool) (*responsePromise, error) { + b.lock.Lock() + defer b.lock.Unlock() + + if b.conn == nil { + if b.connErr != nil { + return nil, b.connErr + } + return nil, ErrNotConnected + } + + req := &request{correlationID: b.correlationID, clientID: b.conf.ClientID, body: rb} + buf, err := encode(req) + if err != nil { + return nil, err + } + + err = b.conn.SetWriteDeadline(time.Now().Add(b.conf.Net.WriteTimeout)) + if err != nil { + return nil, err + } + + _, err = b.conn.Write(buf) + if err != nil { + return nil, err + } + b.correlationID++ + + if !promiseResponse { + return nil, nil + } + + promise := responsePromise{req.correlationID, make(chan []byte), make(chan error)} + b.responses <- promise + + return &promise, nil +} + +func (b *Broker) sendAndReceive(req requestBody, res decoder) error { + promise, err := b.send(req, res != nil) + + if err != nil { + return err + } + + if promise == nil { + return nil + } + + select { + case buf := <-promise.packets: + return decode(buf, res) + case err = <-promise.errors: + return err + } +} + +func (b *Broker) decode(pd packetDecoder) (err error) { + b.id, err = pd.getInt32() + if err != nil { + return err + } + + host, err := pd.getString() + if err != nil { + return err + } + + port, err := pd.getInt32() + if err != nil { + return err + } + + b.addr = net.JoinHostPort(host, fmt.Sprint(port)) + if _, _, err := net.SplitHostPort(b.addr); err != nil { + return err + } + + return nil +} + +func (b *Broker) encode(pe packetEncoder) (err error) { + + host, portstr, err := net.SplitHostPort(b.addr) + if err != nil { + return err + } + port, err := strconv.Atoi(portstr) + if err != nil { + return err + } + + pe.putInt32(b.id) + + err = pe.putString(host) + if err != nil { + return err + } + + pe.putInt32(int32(port)) + + return nil +} + +func (b *Broker) responseReceiver() { + var dead error + header := make([]byte, 8) + for response := range b.responses { + if dead != nil { + response.errors <- dead + continue + } + + err := b.conn.SetReadDeadline(time.Now().Add(b.conf.Net.ReadTimeout)) + if err != nil { + dead = err + response.errors <- err + continue + } + + _, err = io.ReadFull(b.conn, header) + if err != nil { + dead = err + response.errors <- err + continue + } + + decodedHeader := responseHeader{} + err = decode(header, &decodedHeader) + if err != nil { + dead = err + response.errors <- err + continue + } + if decodedHeader.correlationID != response.correlationID { + // TODO if decoded ID < cur ID, discard until we catch up + // TODO if decoded ID > cur ID, save it so when cur ID catches up we have a response + dead = PacketDecodingError{fmt.Sprintf("correlation ID didn't match, wanted %d, got %d", response.correlationID, decodedHeader.correlationID)} + response.errors <- dead + continue + } + + buf := make([]byte, decodedHeader.length-4) + _, err = io.ReadFull(b.conn, buf) + if err != nil { + dead = err + response.errors <- err + continue + } + + response.packets <- buf + } + close(b.done) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/client.go b/Godeps/_workspace/src/github.com/Shopify/sarama/client.go new file mode 100644 index 0000000..c7aecc3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/client.go @@ -0,0 +1,732 @@ +package sarama + +import ( + "math/rand" + "sort" + "sync" + "time" +) + +// Client is a generic Kafka client. It manages connections to one or more Kafka brokers. +// You MUST call Close() on a client to avoid leaks, it will not be garbage-collected +// automatically when it passes out of scope. A single client can be safely shared by +// multiple concurrent Producers and Consumers. +type Client interface { + // Config returns the Config struct of the client. This struct should not be + // altered after it has been created. + Config() *Config + + // Topics returns the set of available topics as retrieved from cluster metadata. + Topics() ([]string, error) + + // Partitions returns the sorted list of all partition IDs for the given topic. + Partitions(topic string) ([]int32, error) + + // WritablePartitions returns the sorted list of all writable partition IDs for + // the given topic, where "writable" means "having a valid leader accepting + // writes". + WritablePartitions(topic string) ([]int32, error) + + // Leader returns the broker object that is the leader of the current + // topic/partition, as determined by querying the cluster metadata. + Leader(topic string, partitionID int32) (*Broker, error) + + // Replicas returns the set of all replica IDs for the given partition. + Replicas(topic string, partitionID int32) ([]int32, error) + + // RefreshMetadata takes a list of topics and queries the cluster to refresh the + // available metadata for those topics. If no topics are provided, it will refresh + // metadata for all topics. + RefreshMetadata(topics ...string) error + + // GetOffset queries the cluster to get the most recent available offset at the + // given time on the topic/partition combination. Time should be OffsetOldest for + // the earliest available offset, OffsetNewest for the offset of the message that + // will be produced next, or a time. + GetOffset(topic string, partitionID int32, time int64) (int64, error) + + // Coordinator returns the coordinating broker for a consumer group. It will + // return a locally cached value if it's available. You can call + // RefreshCoordinator to update the cached value. This function only works on + // Kafka 0.8.2 and higher. + Coordinator(consumerGroup string) (*Broker, error) + + // RefreshCoordinator retrieves the coordinator for a consumer group and stores it + // in local cache. This function only works on Kafka 0.8.2 and higher. + RefreshCoordinator(consumerGroup string) error + + // Close shuts down all broker connections managed by this client. It is required + // to call this function before a client object passes out of scope, as it will + // otherwise leak memory. You must close any Producers or Consumers using a client + // before you close the client. + Close() error + + // Closed returns true if the client has already had Close called on it + Closed() bool +} + +const ( + // OffsetNewest stands for the log head offset, i.e. the offset that will be + // assigned to the next message that will be produced to the partition. You + // can send this to a client's GetOffset method to get this offset, or when + // calling ConsumePartition to start consuming new messages. + OffsetNewest int64 = -1 + // OffsetOldest stands for the oldest offset available on the broker for a + // partition. You can send this to a client's GetOffset method to get this + // offset, or when calling ConsumePartition to start consuming from the + // oldest offset that is still available on the broker. + OffsetOldest int64 = -2 +) + +type client struct { + conf *Config + closer, closed chan none // for shutting down background metadata updater + + // the broker addresses given to us through the constructor are not guaranteed to be returned in + // the cluster metadata (I *think* it only returns brokers who are currently leading partitions?) + // so we store them separately + seedBrokers []*Broker + deadSeeds []*Broker + + brokers map[int32]*Broker // maps broker ids to brokers + metadata map[string]map[int32]*PartitionMetadata // maps topics to partition ids to metadata + coordinators map[string]int32 // Maps consumer group names to coordinating broker IDs + + // If the number of partitions is large, we can get some churn calling cachedPartitions, + // so the result is cached. It is important to update this value whenever metadata is changed + cachedPartitionsResults map[string][maxPartitionIndex][]int32 + + lock sync.RWMutex // protects access to the maps that hold cluster state. +} + +// NewClient creates a new Client. It connects to one of the given broker addresses +// and uses that broker to automatically fetch metadata on the rest of the kafka cluster. If metadata cannot +// be retrieved from any of the given broker addresses, the client is not created. +func NewClient(addrs []string, conf *Config) (Client, error) { + Logger.Println("Initializing new client") + + if conf == nil { + conf = NewConfig() + } + + if err := conf.Validate(); err != nil { + return nil, err + } + + if len(addrs) < 1 { + return nil, ConfigurationError("You must provide at least one broker address") + } + + client := &client{ + conf: conf, + closer: make(chan none), + closed: make(chan none), + brokers: make(map[int32]*Broker), + metadata: make(map[string]map[int32]*PartitionMetadata), + cachedPartitionsResults: make(map[string][maxPartitionIndex][]int32), + coordinators: make(map[string]int32), + } + + random := rand.New(rand.NewSource(time.Now().UnixNano())) + for _, index := range random.Perm(len(addrs)) { + client.seedBrokers = append(client.seedBrokers, NewBroker(addrs[index])) + } + + // do an initial fetch of all cluster metadata by specifing an empty list of topics + err := client.RefreshMetadata() + switch err { + case nil: + break + case ErrLeaderNotAvailable, ErrReplicaNotAvailable: + // indicates that maybe part of the cluster is down, but is not fatal to creating the client + Logger.Println(err) + default: + close(client.closed) // we haven't started the background updater yet, so we have to do this manually + _ = client.Close() + return nil, err + } + go withRecover(client.backgroundMetadataUpdater) + + Logger.Println("Successfully initialized new client") + + return client, nil +} + +func (client *client) Config() *Config { + return client.conf +} + +func (client *client) Close() error { + if client.Closed() { + // Chances are this is being called from a defer() and the error will go unobserved + // so we go ahead and log the event in this case. + Logger.Printf("Close() called on already closed client") + return ErrClosedClient + } + + // shutdown and wait for the background thread before we take the lock, to avoid races + close(client.closer) + <-client.closed + + client.lock.Lock() + defer client.lock.Unlock() + Logger.Println("Closing Client") + + for _, broker := range client.brokers { + safeAsyncClose(broker) + } + + for _, broker := range client.seedBrokers { + safeAsyncClose(broker) + } + + client.brokers = nil + client.metadata = nil + + return nil +} + +func (client *client) Closed() bool { + return client.brokers == nil +} + +func (client *client) Topics() ([]string, error) { + if client.Closed() { + return nil, ErrClosedClient + } + + client.lock.RLock() + defer client.lock.RUnlock() + + ret := make([]string, 0, len(client.metadata)) + for topic := range client.metadata { + ret = append(ret, topic) + } + + return ret, nil +} + +func (client *client) Partitions(topic string) ([]int32, error) { + if client.Closed() { + return nil, ErrClosedClient + } + + partitions := client.cachedPartitions(topic, allPartitions) + + if len(partitions) == 0 { + err := client.RefreshMetadata(topic) + if err != nil { + return nil, err + } + partitions = client.cachedPartitions(topic, allPartitions) + } + + if partitions == nil { + return nil, ErrUnknownTopicOrPartition + } + + return partitions, nil +} + +func (client *client) WritablePartitions(topic string) ([]int32, error) { + if client.Closed() { + return nil, ErrClosedClient + } + + partitions := client.cachedPartitions(topic, writablePartitions) + + // len==0 catches when it's nil (no such topic) and the odd case when every single + // partition is undergoing leader election simultaneously. Callers have to be able to handle + // this function returning an empty slice (which is a valid return value) but catching it + // here the first time (note we *don't* catch it below where we return ErrUnknownTopicOrPartition) triggers + // a metadata refresh as a nicety so callers can just try again and don't have to manually + // trigger a refresh (otherwise they'd just keep getting a stale cached copy). + if len(partitions) == 0 { + err := client.RefreshMetadata(topic) + if err != nil { + return nil, err + } + partitions = client.cachedPartitions(topic, writablePartitions) + } + + if partitions == nil { + return nil, ErrUnknownTopicOrPartition + } + + return partitions, nil +} + +func (client *client) Replicas(topic string, partitionID int32) ([]int32, error) { + if client.Closed() { + return nil, ErrClosedClient + } + + metadata := client.cachedMetadata(topic, partitionID) + + if metadata == nil { + err := client.RefreshMetadata(topic) + if err != nil { + return nil, err + } + metadata = client.cachedMetadata(topic, partitionID) + } + + if metadata == nil { + return nil, ErrUnknownTopicOrPartition + } + + if metadata.Err == ErrReplicaNotAvailable { + return nil, metadata.Err + } + return dupeAndSort(metadata.Replicas), nil +} + +func (client *client) Leader(topic string, partitionID int32) (*Broker, error) { + if client.Closed() { + return nil, ErrClosedClient + } + + leader, err := client.cachedLeader(topic, partitionID) + + if leader == nil { + err := client.RefreshMetadata(topic) + if err != nil { + return nil, err + } + leader, err = client.cachedLeader(topic, partitionID) + } + + return leader, err +} + +func (client *client) RefreshMetadata(topics ...string) error { + if client.Closed() { + return ErrClosedClient + } + + // Prior to 0.8.2, Kafka will throw exceptions on an empty topic and not return a proper + // error. This handles the case by returning an error instead of sending it + // off to Kafka. See: https://github.com/Shopify/sarama/pull/38#issuecomment-26362310 + for _, topic := range topics { + if len(topic) == 0 { + return ErrInvalidTopic // this is the error that 0.8.2 and later correctly return + } + } + + return client.tryRefreshMetadata(topics, client.conf.Metadata.Retry.Max) +} + +func (client *client) GetOffset(topic string, partitionID int32, time int64) (int64, error) { + if client.Closed() { + return -1, ErrClosedClient + } + + offset, err := client.getOffset(topic, partitionID, time) + + if err != nil { + if err := client.RefreshMetadata(topic); err != nil { + return -1, err + } + return client.getOffset(topic, partitionID, time) + } + + return offset, err +} + +func (client *client) Coordinator(consumerGroup string) (*Broker, error) { + if client.Closed() { + return nil, ErrClosedClient + } + + coordinator := client.cachedCoordinator(consumerGroup) + + if coordinator == nil { + if err := client.RefreshCoordinator(consumerGroup); err != nil { + return nil, err + } + coordinator = client.cachedCoordinator(consumerGroup) + } + + if coordinator == nil { + return nil, ErrConsumerCoordinatorNotAvailable + } + + _ = coordinator.Open(client.conf) + return coordinator, nil +} + +func (client *client) RefreshCoordinator(consumerGroup string) error { + if client.Closed() { + return ErrClosedClient + } + + response, err := client.getConsumerMetadata(consumerGroup, client.conf.Metadata.Retry.Max) + if err != nil { + return err + } + + client.lock.Lock() + defer client.lock.Unlock() + client.registerBroker(response.Coordinator) + client.coordinators[consumerGroup] = response.Coordinator.ID() + return nil +} + +// private broker management helpers + +// registerBroker makes sure a broker received by a Metadata or Coordinator request is registered +// in the brokers map. It returns the broker that is registered, which may be the provided broker, +// or a previously registered Broker instance. You must hold the write lock before calling this function. +func (client *client) registerBroker(broker *Broker) { + if client.brokers[broker.ID()] == nil { + client.brokers[broker.ID()] = broker + Logger.Printf("client/brokers registered new broker #%d at %s", broker.ID(), broker.Addr()) + } else if broker.Addr() != client.brokers[broker.ID()].Addr() { + safeAsyncClose(client.brokers[broker.ID()]) + client.brokers[broker.ID()] = broker + Logger.Printf("client/brokers replaced registered broker #%d with %s", broker.ID(), broker.Addr()) + } +} + +// deregisterBroker removes a broker from the seedsBroker list, and if it's +// not the seedbroker, removes it from brokers map completely. +func (client *client) deregisterBroker(broker *Broker) { + client.lock.Lock() + defer client.lock.Unlock() + + if len(client.seedBrokers) > 0 && broker == client.seedBrokers[0] { + client.deadSeeds = append(client.deadSeeds, broker) + client.seedBrokers = client.seedBrokers[1:] + } else { + // we do this so that our loop in `tryRefreshMetadata` doesn't go on forever, + // but we really shouldn't have to; once that loop is made better this case can be + // removed, and the function generally can be renamed from `deregisterBroker` to + // `nextSeedBroker` or something + Logger.Printf("client/brokers deregistered broker #%d at %s", broker.ID(), broker.Addr()) + delete(client.brokers, broker.ID()) + } +} + +func (client *client) resurrectDeadBrokers() { + client.lock.Lock() + defer client.lock.Unlock() + + Logger.Printf("client/brokers resurrecting %d dead seed brokers", len(client.deadSeeds)) + client.seedBrokers = append(client.seedBrokers, client.deadSeeds...) + client.deadSeeds = nil +} + +func (client *client) any() *Broker { + client.lock.RLock() + defer client.lock.RUnlock() + + if len(client.seedBrokers) > 0 { + _ = client.seedBrokers[0].Open(client.conf) + return client.seedBrokers[0] + } + + // not guaranteed to be random *or* deterministic + for _, broker := range client.brokers { + _ = broker.Open(client.conf) + return broker + } + + return nil +} + +// private caching/lazy metadata helpers + +type partitionType int + +const ( + allPartitions partitionType = iota + writablePartitions + // If you add any more types, update the partition cache in update() + + // Ensure this is the last partition type value + maxPartitionIndex +) + +func (client *client) cachedMetadata(topic string, partitionID int32) *PartitionMetadata { + client.lock.RLock() + defer client.lock.RUnlock() + + partitions := client.metadata[topic] + if partitions != nil { + return partitions[partitionID] + } + + return nil +} + +func (client *client) cachedPartitions(topic string, partitionSet partitionType) []int32 { + client.lock.RLock() + defer client.lock.RUnlock() + + partitions, exists := client.cachedPartitionsResults[topic] + + if !exists { + return nil + } + return partitions[partitionSet] +} + +func (client *client) setPartitionCache(topic string, partitionSet partitionType) []int32 { + partitions := client.metadata[topic] + + if partitions == nil { + return nil + } + + ret := make([]int32, 0, len(partitions)) + for _, partition := range partitions { + if partitionSet == writablePartitions && partition.Err == ErrLeaderNotAvailable { + continue + } + ret = append(ret, partition.ID) + } + + sort.Sort(int32Slice(ret)) + return ret +} + +func (client *client) cachedLeader(topic string, partitionID int32) (*Broker, error) { + client.lock.RLock() + defer client.lock.RUnlock() + + partitions := client.metadata[topic] + if partitions != nil { + metadata, ok := partitions[partitionID] + if ok { + if metadata.Err == ErrLeaderNotAvailable { + return nil, ErrLeaderNotAvailable + } + b := client.brokers[metadata.Leader] + if b == nil { + return nil, ErrLeaderNotAvailable + } + _ = b.Open(client.conf) + return b, nil + } + } + + return nil, ErrUnknownTopicOrPartition +} + +func (client *client) getOffset(topic string, partitionID int32, time int64) (int64, error) { + broker, err := client.Leader(topic, partitionID) + if err != nil { + return -1, err + } + + request := &OffsetRequest{} + request.AddBlock(topic, partitionID, time, 1) + + response, err := broker.GetAvailableOffsets(request) + if err != nil { + _ = broker.Close() + return -1, err + } + + block := response.GetBlock(topic, partitionID) + if block == nil { + _ = broker.Close() + return -1, ErrIncompleteResponse + } + if block.Err != ErrNoError { + return -1, block.Err + } + if len(block.Offsets) != 1 { + return -1, ErrOffsetOutOfRange + } + + return block.Offsets[0], nil +} + +// core metadata update logic + +func (client *client) backgroundMetadataUpdater() { + defer close(client.closed) + + if client.conf.Metadata.RefreshFrequency == time.Duration(0) { + return + } + + ticker := time.NewTicker(client.conf.Metadata.RefreshFrequency) + defer ticker.Stop() + + for { + select { + case <-ticker.C: + if err := client.RefreshMetadata(); err != nil { + Logger.Println("Client background metadata update:", err) + } + case <-client.closer: + return + } + } +} + +func (client *client) tryRefreshMetadata(topics []string, attemptsRemaining int) error { + retry := func(err error) error { + if attemptsRemaining > 0 { + Logger.Printf("client/metadata retrying after %dms... (%d attempts remaining)\n", client.conf.Metadata.Retry.Backoff/time.Millisecond, attemptsRemaining) + time.Sleep(client.conf.Metadata.Retry.Backoff) + return client.tryRefreshMetadata(topics, attemptsRemaining-1) + } + return err + } + + for broker := client.any(); broker != nil; broker = client.any() { + if len(topics) > 0 { + Logger.Printf("client/metadata fetching metadata for %v from broker %s\n", topics, broker.addr) + } else { + Logger.Printf("client/metadata fetching metadata for all topics from broker %s\n", broker.addr) + } + response, err := broker.GetMetadata(&MetadataRequest{Topics: topics}) + + switch err.(type) { + case nil: + // valid response, use it + if shouldRetry, err := client.updateMetadata(response); shouldRetry { + Logger.Println("client/metadata found some partitions to be leaderless") + return retry(err) // note: err can be nil + } else { + return err + } + + case PacketEncodingError: + // didn't even send, return the error + return err + default: + // some other error, remove that broker and try again + Logger.Println("client/metadata got error from broker while fetching metadata:", err) + _ = broker.Close() + client.deregisterBroker(broker) + } + } + + Logger.Println("client/metadata no available broker to send metadata request to") + client.resurrectDeadBrokers() + return retry(ErrOutOfBrokers) +} + +// if no fatal error, returns a list of topics that need retrying due to ErrLeaderNotAvailable +func (client *client) updateMetadata(data *MetadataResponse) (retry bool, err error) { + client.lock.Lock() + defer client.lock.Unlock() + + // For all the brokers we received: + // - if it is a new ID, save it + // - if it is an existing ID, but the address we have is stale, discard the old one and save it + // - otherwise ignore it, replacing our existing one would just bounce the connection + for _, broker := range data.Brokers { + client.registerBroker(broker) + } + + for _, topic := range data.Topics { + delete(client.metadata, topic.Name) + delete(client.cachedPartitionsResults, topic.Name) + + switch topic.Err { + case ErrNoError: + break + case ErrInvalidTopic: // don't retry, don't store partial results + err = topic.Err + continue + case ErrUnknownTopicOrPartition: // retry, do not store partial partition results + err = topic.Err + retry = true + continue + case ErrLeaderNotAvailable: // retry, but store partial partition results + retry = true + break + default: // don't retry, don't store partial results + Logger.Printf("Unexpected topic-level metadata error: %s", topic.Err) + err = topic.Err + continue + } + + client.metadata[topic.Name] = make(map[int32]*PartitionMetadata, len(topic.Partitions)) + for _, partition := range topic.Partitions { + client.metadata[topic.Name][partition.ID] = partition + if partition.Err == ErrLeaderNotAvailable { + retry = true + } + } + + var partitionCache [maxPartitionIndex][]int32 + partitionCache[allPartitions] = client.setPartitionCache(topic.Name, allPartitions) + partitionCache[writablePartitions] = client.setPartitionCache(topic.Name, writablePartitions) + client.cachedPartitionsResults[topic.Name] = partitionCache + } + + return +} + +func (client *client) cachedCoordinator(consumerGroup string) *Broker { + client.lock.RLock() + defer client.lock.RUnlock() + if coordinatorID, ok := client.coordinators[consumerGroup]; ok { + return client.brokers[coordinatorID] + } + return nil +} + +func (client *client) getConsumerMetadata(consumerGroup string, attemptsRemaining int) (*ConsumerMetadataResponse, error) { + retry := func(err error) (*ConsumerMetadataResponse, error) { + if attemptsRemaining > 0 { + Logger.Printf("client/coordinator retrying after %dms... (%d attempts remaining)\n", client.conf.Metadata.Retry.Backoff/time.Millisecond, attemptsRemaining) + time.Sleep(client.conf.Metadata.Retry.Backoff) + return client.getConsumerMetadata(consumerGroup, attemptsRemaining-1) + } + return nil, err + } + + for broker := client.any(); broker != nil; broker = client.any() { + Logger.Printf("client/coordinator requesting coordinator for consumergoup %s from %s\n", consumerGroup, broker.Addr()) + + request := new(ConsumerMetadataRequest) + request.ConsumerGroup = consumerGroup + + response, err := broker.GetConsumerMetadata(request) + + if err != nil { + Logger.Printf("client/coordinator request to broker %s failed: %s\n", broker.Addr(), err) + + switch err.(type) { + case PacketEncodingError: + return nil, err + default: + _ = broker.Close() + client.deregisterBroker(broker) + continue + } + } + + switch response.Err { + case ErrNoError: + Logger.Printf("client/coordinator coordinator for consumergoup %s is #%d (%s)\n", consumerGroup, response.Coordinator.ID(), response.Coordinator.Addr()) + return response, nil + + case ErrConsumerCoordinatorNotAvailable: + Logger.Printf("client/coordinator coordinator for consumer group %s is not available\n", consumerGroup) + + // This is very ugly, but this scenario will only happen once per cluster. + // The __consumer_offsets topic only has to be created one time. + // The number of partitions not configurable, but partition 0 should always exist. + if _, err := client.Leader("__consumer_offsets", 0); err != nil { + Logger.Printf("client/coordinator the __consumer_offsets topic is not initialized completely yet. Waiting 2 seconds...\n") + time.Sleep(2 * time.Second) + } + + return retry(ErrConsumerCoordinatorNotAvailable) + default: + return nil, response.Err + } + } + + Logger.Println("client/coordinator no available broker to send consumer metadata request to") + client.resurrectDeadBrokers() + return retry(ErrOutOfBrokers) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/config.go b/Godeps/_workspace/src/github.com/Shopify/sarama/config.go new file mode 100644 index 0000000..542c611 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/config.go @@ -0,0 +1,344 @@ +package sarama + +import ( + "crypto/tls" + "time" +) + +// Config is used to pass multiple configuration options to Sarama's constructors. +type Config struct { + // Net is the namespace for network-level properties used by the Broker, and + // shared by the Client/Producer/Consumer. + Net struct { + // How many outstanding requests a connection is allowed to have before + // sending on it blocks (default 5). + MaxOpenRequests int + + // All three of the below configurations are similar to the + // `socket.timeout.ms` setting in JVM kafka. All of them default + // to 30 seconds. + DialTimeout time.Duration // How long to wait for the initial connection. + ReadTimeout time.Duration // How long to wait for a response. + WriteTimeout time.Duration // How long to wait for a transmit. + + // NOTE: these config values have no compatibility guarantees; they may + // change when Kafka releases its official TLS support in version 0.9. + TLS struct { + // Whether or not to use TLS when connecting to the broker + // (defaults to false). + Enable bool + // The TLS configuration to use for secure connections if + // enabled (defaults to nil). + Config *tls.Config + } + + // KeepAlive specifies the keep-alive period for an active network connection. + // If zero, keep-alives are disabled. (default is 0: disabled). + KeepAlive time.Duration + } + + // Metadata is the namespace for metadata management properties used by the + // Client, and shared by the Producer/Consumer. + Metadata struct { + Retry struct { + // The total number of times to retry a metadata request when the + // cluster is in the middle of a leader election (default 3). + Max int + // How long to wait for leader election to occur before retrying + // (default 250ms). Similar to the JVM's `retry.backoff.ms`. + Backoff time.Duration + } + // How frequently to refresh the cluster metadata in the background. + // Defaults to 10 minutes. Set to 0 to disable. Similar to + // `topic.metadata.refresh.interval.ms` in the JVM version. + RefreshFrequency time.Duration + } + + // Producer is the namespace for configuration related to producing messages, + // used by the Producer. + Producer struct { + // The maximum permitted size of a message (defaults to 1000000). Should be + // set equal to or smaller than the broker's `message.max.bytes`. + MaxMessageBytes int + // The level of acknowledgement reliability needed from the broker (defaults + // to WaitForLocal). Equivalent to the `request.required.acks` setting of the + // JVM producer. + RequiredAcks RequiredAcks + // The maximum duration the broker will wait the receipt of the number of + // RequiredAcks (defaults to 10 seconds). This is only relevant when + // RequiredAcks is set to WaitForAll or a number > 1. Only supports + // millisecond resolution, nanoseconds will be truncated. Equivalent to + // the JVM producer's `request.timeout.ms` setting. + Timeout time.Duration + // The type of compression to use on messages (defaults to no compression). + // Similar to `compression.codec` setting of the JVM producer. + Compression CompressionCodec + // Generates partitioners for choosing the partition to send messages to + // (defaults to hashing the message key). Similar to the `partitioner.class` + // setting for the JVM producer. + Partitioner PartitionerConstructor + + // Return specifies what channels will be populated. If they are set to true, + // you must read from the respective channels to prevent deadlock. + Return struct { + // If enabled, successfully delivered messages will be returned on the + // Successes channel (default disabled). + Successes bool + + // If enabled, messages that failed to deliver will be returned on the + // Errors channel, including error (default enabled). + Errors bool + } + + // The following config options control how often messages are batched up and + // sent to the broker. By default, messages are sent as fast as possible, and + // all messages received while the current batch is in-flight are placed + // into the subsequent batch. + Flush struct { + // The best-effort number of bytes needed to trigger a flush. Use the + // global sarama.MaxRequestSize to set a hard upper limit. + Bytes int + // The best-effort number of messages needed to trigger a flush. Use + // `MaxMessages` to set a hard upper limit. + Messages int + // The best-effort frequency of flushes. Equivalent to + // `queue.buffering.max.ms` setting of JVM producer. + Frequency time.Duration + // The maximum number of messages the producer will send in a single + // broker request. Defaults to 0 for unlimited. Similar to + // `queue.buffering.max.messages` in the JVM producer. + MaxMessages int + } + + Retry struct { + // The total number of times to retry sending a message (default 3). + // Similar to the `message.send.max.retries` setting of the JVM producer. + Max int + // How long to wait for the cluster to settle between retries + // (default 100ms). Similar to the `retry.backoff.ms` setting of the + // JVM producer. + Backoff time.Duration + } + } + + // Consumer is the namespace for configuration related to consuming messages, + // used by the Consumer. + Consumer struct { + Retry struct { + // How long to wait after a failing to read from a partition before + // trying again (default 2s). + Backoff time.Duration + } + + // Fetch is the namespace for controlling how many bytes are retrieved by any + // given request. + Fetch struct { + // The minimum number of message bytes to fetch in a request - the broker + // will wait until at least this many are available. The default is 1, + // as 0 causes the consumer to spin when no messages are available. + // Equivalent to the JVM's `fetch.min.bytes`. + Min int32 + // The default number of message bytes to fetch from the broker in each + // request (default 32768). This should be larger than the majority of + // your messages, or else the consumer will spend a lot of time + // negotiating sizes and not actually consuming. Similar to the JVM's + // `fetch.message.max.bytes`. + Default int32 + // The maximum number of message bytes to fetch from the broker in a + // single request. Messages larger than this will return + // ErrMessageTooLarge and will not be consumable, so you must be sure + // this is at least as large as your largest message. Defaults to 0 + // (no limit). Similar to the JVM's `fetch.message.max.bytes`. The + // global `sarama.MaxResponseSize` still applies. + Max int32 + } + // The maximum amount of time the broker will wait for Consumer.Fetch.Min + // bytes to become available before it returns fewer than that anyways. The + // default is 250ms, since 0 causes the consumer to spin when no events are + // available. 100-500ms is a reasonable range for most cases. Kafka only + // supports precision up to milliseconds; nanoseconds will be truncated. + // Equivalent to the JVM's `fetch.wait.max.ms`. + MaxWaitTime time.Duration + + // The maximum amount of time the consumer expects a message takes to process + // for the user. If writing to the Messages channel takes longer than this, + // that partition will stop fetching more messages until it can proceed again. + // Note that, since the Messages channel is buffered, the actual grace time is + // (MaxProcessingTime * ChanneBufferSize). Defaults to 100ms. + MaxProcessingTime time.Duration + + // Return specifies what channels will be populated. If they are set to true, + // you must read from them to prevent deadlock. + Return struct { + // If enabled, any errors that occured while consuming are returned on + // the Errors channel (default disabled). + Errors bool + } + + // Offsets specifies configuration for how and when to commit consumed + // offsets. This currently requires the manual use of an OffsetManager + // but will eventually be automated. + Offsets struct { + // How frequently to commit updated offsets. Defaults to 1s. + CommitInterval time.Duration + + // The initial offset to use if no offset was previously committed. + // Should be OffsetNewest or OffsetOldest. Defaults to OffsetNewest. + Initial int64 + } + } + + // A user-provided string sent with every request to the brokers for logging, + // debugging, and auditing purposes. Defaults to "sarama", but you should + // probably set it to something specific to your application. + ClientID string + // The number of events to buffer in internal and external channels. This + // permits the producer and consumer to continue processing some messages + // in the background while user code is working, greatly improving throughput. + // Defaults to 256. + ChannelBufferSize int +} + +// NewConfig returns a new configuration instance with sane defaults. +func NewConfig() *Config { + c := &Config{} + + c.Net.MaxOpenRequests = 5 + c.Net.DialTimeout = 30 * time.Second + c.Net.ReadTimeout = 30 * time.Second + c.Net.WriteTimeout = 30 * time.Second + + c.Metadata.Retry.Max = 3 + c.Metadata.Retry.Backoff = 250 * time.Millisecond + c.Metadata.RefreshFrequency = 10 * time.Minute + + c.Producer.MaxMessageBytes = 1000000 + c.Producer.RequiredAcks = WaitForLocal + c.Producer.Timeout = 10 * time.Second + c.Producer.Partitioner = NewHashPartitioner + c.Producer.Retry.Max = 3 + c.Producer.Retry.Backoff = 100 * time.Millisecond + c.Producer.Return.Errors = true + + c.Consumer.Fetch.Min = 1 + c.Consumer.Fetch.Default = 32768 + c.Consumer.Retry.Backoff = 2 * time.Second + c.Consumer.MaxWaitTime = 250 * time.Millisecond + c.Consumer.MaxProcessingTime = 100 * time.Millisecond + c.Consumer.Return.Errors = false + c.Consumer.Offsets.CommitInterval = 1 * time.Second + c.Consumer.Offsets.Initial = OffsetNewest + + c.ChannelBufferSize = 256 + + return c +} + +// Validate checks a Config instance. It will return a +// ConfigurationError if the specified values don't make sense. +func (c *Config) Validate() error { + // some configuration values should be warned on but not fail completely, do those first + if c.Net.TLS.Enable == false && c.Net.TLS.Config != nil { + Logger.Println("Net.TLS is disabled but a non-nil configuration was provided.") + } + if c.Producer.RequiredAcks > 1 { + Logger.Println("Producer.RequiredAcks > 1 is deprecated and will raise an exception with kafka >= 0.8.2.0.") + } + if c.Producer.MaxMessageBytes >= int(MaxRequestSize) { + Logger.Println("Producer.MaxMessageBytes is larger than MaxRequestSize; it will be ignored.") + } + if c.Producer.Flush.Bytes >= int(MaxRequestSize) { + Logger.Println("Producer.Flush.Bytes is larger than MaxRequestSize; it will be ignored.") + } + if c.Producer.Timeout%time.Millisecond != 0 { + Logger.Println("Producer.Timeout only supports millisecond resolution; nanoseconds will be truncated.") + } + if c.Consumer.MaxWaitTime < 100*time.Millisecond { + Logger.Println("Consumer.MaxWaitTime is very low, which can cause high CPU and network usage. See documentation for details.") + } + if c.Consumer.MaxWaitTime%time.Millisecond != 0 { + Logger.Println("Consumer.MaxWaitTime only supports millisecond precision; nanoseconds will be truncated.") + } + if c.ClientID == "sarama" { + Logger.Println("ClientID is the default of 'sarama', you should consider setting it to something application-specific.") + } + + // validate Net values + switch { + case c.Net.MaxOpenRequests <= 0: + return ConfigurationError("Net.MaxOpenRequests must be > 0") + case c.Net.DialTimeout <= 0: + return ConfigurationError("Net.DialTimeout must be > 0") + case c.Net.ReadTimeout <= 0: + return ConfigurationError("Net.ReadTimeout must be > 0") + case c.Net.WriteTimeout <= 0: + return ConfigurationError("Net.WriteTimeout must be > 0") + case c.Net.KeepAlive < 0: + return ConfigurationError("Net.KeepAlive must be >= 0") + } + + // validate the Metadata values + switch { + case c.Metadata.Retry.Max < 0: + return ConfigurationError("Metadata.Retry.Max must be >= 0") + case c.Metadata.Retry.Backoff < 0: + return ConfigurationError("Metadata.Retry.Backoff must be >= 0") + case c.Metadata.RefreshFrequency < 0: + return ConfigurationError("Metadata.RefreshFrequency must be >= 0") + } + + // validate the Producer values + switch { + case c.Producer.MaxMessageBytes <= 0: + return ConfigurationError("Producer.MaxMessageBytes must be > 0") + case c.Producer.RequiredAcks < -1: + return ConfigurationError("Producer.RequiredAcks must be >= -1") + case c.Producer.Timeout <= 0: + return ConfigurationError("Producer.Timeout must be > 0") + case c.Producer.Partitioner == nil: + return ConfigurationError("Producer.Partitioner must not be nil") + case c.Producer.Flush.Bytes < 0: + return ConfigurationError("Producer.Flush.Bytes must be >= 0") + case c.Producer.Flush.Messages < 0: + return ConfigurationError("Producer.Flush.Messages must be >= 0") + case c.Producer.Flush.Frequency < 0: + return ConfigurationError("Producer.Flush.Frequency must be >= 0") + case c.Producer.Flush.MaxMessages < 0: + return ConfigurationError("Producer.Flush.MaxMessages must be >= 0") + case c.Producer.Flush.MaxMessages > 0 && c.Producer.Flush.MaxMessages < c.Producer.Flush.Messages: + return ConfigurationError("Producer.Flush.MaxMessages must be >= Producer.Flush.Messages when set") + case c.Producer.Retry.Max < 0: + return ConfigurationError("Producer.Retry.Max must be >= 0") + case c.Producer.Retry.Backoff < 0: + return ConfigurationError("Producer.Retry.Backoff must be >= 0") + } + + // validate the Consumer values + switch { + case c.Consumer.Fetch.Min <= 0: + return ConfigurationError("Consumer.Fetch.Min must be > 0") + case c.Consumer.Fetch.Default <= 0: + return ConfigurationError("Consumer.Fetch.Default must be > 0") + case c.Consumer.Fetch.Max < 0: + return ConfigurationError("Consumer.Fetch.Max must be >= 0") + case c.Consumer.MaxWaitTime < 1*time.Millisecond: + return ConfigurationError("Consumer.MaxWaitTime must be >= 1ms") + case c.Consumer.MaxProcessingTime <= 0: + return ConfigurationError("Consumer.MaxProcessingTime must be > 0") + case c.Consumer.Retry.Backoff < 0: + return ConfigurationError("Consumer.Retry.Backoff must be >= 0") + case c.Consumer.Offsets.CommitInterval <= 0: + return ConfigurationError("Consumer.Offsets.CommitInterval must be > 0") + case c.Consumer.Offsets.Initial != OffsetOldest && c.Consumer.Offsets.Initial != OffsetNewest: + return ConfigurationError("Consumer.Offsets.Initial must be OffsetOldest or OffsetNewest") + + } + + // validate misc shared values + switch { + case c.ChannelBufferSize < 0: + return ConfigurationError("ChannelBufferSize must be >= 0") + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/consumer.go b/Godeps/_workspace/src/github.com/Shopify/sarama/consumer.go new file mode 100644 index 0000000..877fb04 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/consumer.go @@ -0,0 +1,690 @@ +package sarama + +import ( + "errors" + "fmt" + "sync" + "sync/atomic" + "time" +) + +// ConsumerMessage encapsulates a Kafka message returned by the consumer. +type ConsumerMessage struct { + Key, Value []byte + Topic string + Partition int32 + Offset int64 +} + +// ConsumerError is what is provided to the user when an error occurs. +// It wraps an error and includes the topic and partition. +type ConsumerError struct { + Topic string + Partition int32 + Err error +} + +func (ce ConsumerError) Error() string { + return fmt.Sprintf("kafka: error while consuming %s/%d: %s", ce.Topic, ce.Partition, ce.Err) +} + +// ConsumerErrors is a type that wraps a batch of errors and implements the Error interface. +// It can be returned from the PartitionConsumer's Close methods to avoid the need to manually drain errors +// when stopping. +type ConsumerErrors []*ConsumerError + +func (ce ConsumerErrors) Error() string { + return fmt.Sprintf("kafka: %d errors while consuming", len(ce)) +} + +// Consumer manages PartitionConsumers which process Kafka messages from brokers. You MUST call Close() +// on a consumer to avoid leaks, it will not be garbage-collected automatically when it passes out of +// scope. +// +// Sarama's Consumer type does not currently support automatic consumer group rebalancing and offset tracking, +// however the https://github.com/wvanbergen/kafka library builds on Sarama to add this support. We plan +// to properly integrate this functionality at a later date. +type Consumer interface { + + // Topics returns the set of available topics as retrieved from the cluster + // metadata. This method is the same as Client.Topics(), and is provided for + // convenience. + Topics() ([]string, error) + + // Partitions returns the sorted list of all partition IDs for the given topic. + // This method is the same as Client.Partitions(), and is provided for convenience. + Partitions(topic string) ([]int32, error) + + // ConsumePartition creates a PartitionConsumer on the given topic/partition with + // the given offset. It will return an error if this Consumer is already consuming + // on the given topic/partition. Offset can be a literal offset, or OffsetNewest + // or OffsetOldest + ConsumePartition(topic string, partition int32, offset int64) (PartitionConsumer, error) + + // Close shuts down the consumer. It must be called after all child + // PartitionConsumers have already been closed. + Close() error +} + +type consumer struct { + client Client + conf *Config + ownClient bool + + lock sync.Mutex + children map[string]map[int32]*partitionConsumer + brokerConsumers map[*Broker]*brokerConsumer +} + +// NewConsumer creates a new consumer using the given broker addresses and configuration. +func NewConsumer(addrs []string, config *Config) (Consumer, error) { + client, err := NewClient(addrs, config) + if err != nil { + return nil, err + } + + c, err := NewConsumerFromClient(client) + if err != nil { + return nil, err + } + c.(*consumer).ownClient = true + return c, nil +} + +// NewConsumerFromClient creates a new consumer using the given client. It is still +// necessary to call Close() on the underlying client when shutting down this consumer. +func NewConsumerFromClient(client Client) (Consumer, error) { + // Check that we are not dealing with a closed Client before processing any other arguments + if client.Closed() { + return nil, ErrClosedClient + } + + c := &consumer{ + client: client, + conf: client.Config(), + children: make(map[string]map[int32]*partitionConsumer), + brokerConsumers: make(map[*Broker]*brokerConsumer), + } + + return c, nil +} + +func (c *consumer) Close() error { + if c.ownClient { + return c.client.Close() + } + return nil +} + +func (c *consumer) Topics() ([]string, error) { + return c.client.Topics() +} + +func (c *consumer) Partitions(topic string) ([]int32, error) { + return c.client.Partitions(topic) +} + +func (c *consumer) ConsumePartition(topic string, partition int32, offset int64) (PartitionConsumer, error) { + child := &partitionConsumer{ + consumer: c, + conf: c.conf, + topic: topic, + partition: partition, + messages: make(chan *ConsumerMessage, c.conf.ChannelBufferSize), + errors: make(chan *ConsumerError, c.conf.ChannelBufferSize), + feeder: make(chan *FetchResponse, 1), + trigger: make(chan none, 1), + dying: make(chan none), + fetchSize: c.conf.Consumer.Fetch.Default, + } + + if err := child.chooseStartingOffset(offset); err != nil { + return nil, err + } + + var leader *Broker + var err error + if leader, err = c.client.Leader(child.topic, child.partition); err != nil { + return nil, err + } + + if err := c.addChild(child); err != nil { + return nil, err + } + + go withRecover(child.dispatcher) + go withRecover(child.responseFeeder) + + child.broker = c.refBrokerConsumer(leader) + child.broker.input <- child + + return child, nil +} + +func (c *consumer) addChild(child *partitionConsumer) error { + c.lock.Lock() + defer c.lock.Unlock() + + topicChildren := c.children[child.topic] + if topicChildren == nil { + topicChildren = make(map[int32]*partitionConsumer) + c.children[child.topic] = topicChildren + } + + if topicChildren[child.partition] != nil { + return ConfigurationError("That topic/partition is already being consumed") + } + + topicChildren[child.partition] = child + return nil +} + +func (c *consumer) removeChild(child *partitionConsumer) { + c.lock.Lock() + defer c.lock.Unlock() + + delete(c.children[child.topic], child.partition) +} + +func (c *consumer) refBrokerConsumer(broker *Broker) *brokerConsumer { + c.lock.Lock() + defer c.lock.Unlock() + + bc := c.brokerConsumers[broker] + if bc == nil { + bc = c.newBrokerConsumer(broker) + c.brokerConsumers[broker] = bc + } + + bc.refs++ + + return bc +} + +func (c *consumer) unrefBrokerConsumer(brokerWorker *brokerConsumer) { + c.lock.Lock() + defer c.lock.Unlock() + + brokerWorker.refs-- + + if brokerWorker.refs == 0 { + close(brokerWorker.input) + if c.brokerConsumers[brokerWorker.broker] == brokerWorker { + delete(c.brokerConsumers, brokerWorker.broker) + } + } +} + +func (c *consumer) abandonBrokerConsumer(brokerWorker *brokerConsumer) { + c.lock.Lock() + defer c.lock.Unlock() + + delete(c.brokerConsumers, brokerWorker.broker) +} + +// PartitionConsumer + +// PartitionConsumer processes Kafka messages from a given topic and partition. You MUST call Close() +// or AsyncClose() on a PartitionConsumer to avoid leaks, it will not be garbage-collected automatically +// when it passes out of scope. +// +// The simplest way of using a PartitionConsumer is to loop over its Messages channel using a for/range +// loop. The PartitionConsumer will only stop itself in one case: when the offset being consumed is reported +// as out of range by the brokers. In this case you should decide what you want to do (try a different offset, +// notify a human, etc) and handle it appropriately. For all other error cases, it will just keep retrying. +// By default, it logs these errors to sarama.Logger; if you want to be notified directly of all errors, set +// your config's Consumer.Return.Errors to true and read from the Errors channel, using a select statement +// or a separate goroutine. Check out the Consumer examples to see implementations of these different approaches. +type PartitionConsumer interface { + + // AsyncClose initiates a shutdown of the PartitionConsumer. This method will + // return immediately, after which you should wait until the 'messages' and + // 'errors' channel are drained. It is required to call this function, or + // Close before a consumer object passes out of scope, as it will otherwise + // leak memory. You must call this before calling Close on the underlying client. + AsyncClose() + + // Close stops the PartitionConsumer from fetching messages. It is required to + // call this function (or AsyncClose) before a consumer object passes out of + // scope, as it will otherwise leak memory. You must call this before calling + // Close on the underlying client. + Close() error + + // Messages returns the read channel for the messages that are returned by + // the broker. + Messages() <-chan *ConsumerMessage + + // Errors returns a read channel of errors that occured during consuming, if + // enabled. By default, errors are logged and not returned over this channel. + // If you want to implement any custom error handling, set your config's + // Consumer.Return.Errors setting to true, and read from this channel. + Errors() <-chan *ConsumerError + + // HighWaterMarkOffset returns the high water mark offset of the partition, + // i.e. the offset that will be used for the next message that will be produced. + // You can use this to determine how far behind the processing is. + HighWaterMarkOffset() int64 +} + +type partitionConsumer struct { + consumer *consumer + conf *Config + topic string + partition int32 + + broker *brokerConsumer + messages chan *ConsumerMessage + errors chan *ConsumerError + feeder chan *FetchResponse + + trigger, dying chan none + responseResult error + + fetchSize int32 + offset int64 + highWaterMarkOffset int64 +} + +var errTimedOut = errors.New("timed out feeding messages to the user") // not user-facing + +func (child *partitionConsumer) sendError(err error) { + cErr := &ConsumerError{ + Topic: child.topic, + Partition: child.partition, + Err: err, + } + + if child.conf.Consumer.Return.Errors { + child.errors <- cErr + } else { + Logger.Println(cErr) + } +} + +func (child *partitionConsumer) dispatcher() { + for _ = range child.trigger { + select { + case <-child.dying: + close(child.trigger) + case <-time.After(child.conf.Consumer.Retry.Backoff): + if child.broker != nil { + child.consumer.unrefBrokerConsumer(child.broker) + child.broker = nil + } + + Logger.Printf("consumer/%s/%d finding new broker\n", child.topic, child.partition) + if err := child.dispatch(); err != nil { + child.sendError(err) + child.trigger <- none{} + } + } + } + + if child.broker != nil { + child.consumer.unrefBrokerConsumer(child.broker) + } + child.consumer.removeChild(child) + close(child.feeder) +} + +func (child *partitionConsumer) dispatch() error { + if err := child.consumer.client.RefreshMetadata(child.topic); err != nil { + return err + } + + var leader *Broker + var err error + if leader, err = child.consumer.client.Leader(child.topic, child.partition); err != nil { + return err + } + + child.broker = child.consumer.refBrokerConsumer(leader) + + child.broker.input <- child + + return nil +} + +func (child *partitionConsumer) chooseStartingOffset(offset int64) error { + newestOffset, err := child.consumer.client.GetOffset(child.topic, child.partition, OffsetNewest) + if err != nil { + return err + } + oldestOffset, err := child.consumer.client.GetOffset(child.topic, child.partition, OffsetOldest) + if err != nil { + return err + } + + switch { + case offset == OffsetNewest: + child.offset = newestOffset + case offset == OffsetOldest: + child.offset = oldestOffset + case offset >= oldestOffset && offset <= newestOffset: + child.offset = offset + default: + return ErrOffsetOutOfRange + } + + return nil +} + +func (child *partitionConsumer) Messages() <-chan *ConsumerMessage { + return child.messages +} + +func (child *partitionConsumer) Errors() <-chan *ConsumerError { + return child.errors +} + +func (child *partitionConsumer) AsyncClose() { + // this triggers whatever broker owns this child to abandon it and close its trigger channel, which causes + // the dispatcher to exit its loop, which removes it from the consumer then closes its 'messages' and + // 'errors' channel (alternatively, if the child is already at the dispatcher for some reason, that will + // also just close itself) + close(child.dying) +} + +func (child *partitionConsumer) Close() error { + child.AsyncClose() + + go withRecover(func() { + for _ = range child.messages { + // drain + } + }) + + var errors ConsumerErrors + for err := range child.errors { + errors = append(errors, err) + } + + if len(errors) > 0 { + return errors + } + return nil +} + +func (child *partitionConsumer) HighWaterMarkOffset() int64 { + return atomic.LoadInt64(&child.highWaterMarkOffset) +} + +func (child *partitionConsumer) responseFeeder() { + var msgs []*ConsumerMessage + +feederLoop: + for response := range child.feeder { + msgs, child.responseResult = child.parseResponse(response) + + for i, msg := range msgs { + select { + case child.messages <- msg: + case <-time.After(child.conf.Consumer.MaxProcessingTime): + child.responseResult = errTimedOut + child.broker.acks.Done() + for _, msg = range msgs[i:] { + child.messages <- msg + } + child.broker.input <- child + continue feederLoop + } + } + + child.broker.acks.Done() + } + + close(child.messages) + close(child.errors) +} + +func (child *partitionConsumer) parseResponse(response *FetchResponse) ([]*ConsumerMessage, error) { + block := response.GetBlock(child.topic, child.partition) + if block == nil { + return nil, ErrIncompleteResponse + } + + if block.Err != ErrNoError { + return nil, block.Err + } + + if len(block.MsgSet.Messages) == 0 { + // We got no messages. If we got a trailing one then we need to ask for more data. + // Otherwise we just poll again and wait for one to be produced... + if block.MsgSet.PartialTrailingMessage { + if child.conf.Consumer.Fetch.Max > 0 && child.fetchSize == child.conf.Consumer.Fetch.Max { + // we can't ask for more data, we've hit the configured limit + child.sendError(ErrMessageTooLarge) + child.offset++ // skip this one so we can keep processing future messages + } else { + child.fetchSize *= 2 + if child.conf.Consumer.Fetch.Max > 0 && child.fetchSize > child.conf.Consumer.Fetch.Max { + child.fetchSize = child.conf.Consumer.Fetch.Max + } + } + } + + return nil, nil + } + + // we got messages, reset our fetch size in case it was increased for a previous request + child.fetchSize = child.conf.Consumer.Fetch.Default + atomic.StoreInt64(&child.highWaterMarkOffset, block.HighWaterMarkOffset) + + incomplete := false + prelude := true + var messages []*ConsumerMessage + for _, msgBlock := range block.MsgSet.Messages { + + for _, msg := range msgBlock.Messages() { + if prelude && msg.Offset < child.offset { + continue + } + prelude = false + + if msg.Offset >= child.offset { + messages = append(messages, &ConsumerMessage{ + Topic: child.topic, + Partition: child.partition, + Key: msg.Msg.Key, + Value: msg.Msg.Value, + Offset: msg.Offset, + }) + child.offset = msg.Offset + 1 + } else { + incomplete = true + } + } + + } + + if incomplete || len(messages) == 0 { + return nil, ErrIncompleteResponse + } + return messages, nil +} + +// brokerConsumer + +type brokerConsumer struct { + consumer *consumer + broker *Broker + input chan *partitionConsumer + newSubscriptions chan []*partitionConsumer + wait chan none + subscriptions map[*partitionConsumer]none + acks sync.WaitGroup + refs int +} + +func (c *consumer) newBrokerConsumer(broker *Broker) *brokerConsumer { + bc := &brokerConsumer{ + consumer: c, + broker: broker, + input: make(chan *partitionConsumer), + newSubscriptions: make(chan []*partitionConsumer), + wait: make(chan none), + subscriptions: make(map[*partitionConsumer]none), + refs: 0, + } + + go withRecover(bc.subscriptionManager) + go withRecover(bc.subscriptionConsumer) + + return bc +} + +func (bc *brokerConsumer) subscriptionManager() { + var buffer []*partitionConsumer + + // The subscriptionManager constantly accepts new subscriptions on `input` (even when the main subscriptionConsumer + // goroutine is in the middle of a network request) and batches it up. The main worker goroutine picks + // up a batch of new subscriptions between every network request by reading from `newSubscriptions`, so we give + // it nil if no new subscriptions are available. We also write to `wait` only when new subscriptions is available, + // so the main goroutine can block waiting for work if it has none. + for { + if len(buffer) > 0 { + select { + case event, ok := <-bc.input: + if !ok { + goto done + } + buffer = append(buffer, event) + case bc.newSubscriptions <- buffer: + buffer = nil + case bc.wait <- none{}: + } + } else { + select { + case event, ok := <-bc.input: + if !ok { + goto done + } + buffer = append(buffer, event) + case bc.newSubscriptions <- nil: + } + } + } + +done: + close(bc.wait) + if len(buffer) > 0 { + bc.newSubscriptions <- buffer + } + close(bc.newSubscriptions) +} + +func (bc *brokerConsumer) subscriptionConsumer() { + <-bc.wait // wait for our first piece of work + + // the subscriptionConsumer ensures we will get nil right away if no new subscriptions is available + for newSubscriptions := range bc.newSubscriptions { + bc.updateSubscriptions(newSubscriptions) + + if len(bc.subscriptions) == 0 { + // We're about to be shut down or we're about to receive more subscriptions. + // Either way, the signal just hasn't propagated to our goroutine yet. + <-bc.wait + continue + } + + response, err := bc.fetchNewMessages() + + if err != nil { + Logger.Printf("consumer/broker/%d disconnecting due to error processing FetchRequest: %s\n", bc.broker.ID(), err) + bc.abort(err) + return + } + + bc.acks.Add(len(bc.subscriptions)) + for child := range bc.subscriptions { + child.feeder <- response + } + bc.acks.Wait() + bc.handleResponses() + } +} + +func (bc *brokerConsumer) updateSubscriptions(newSubscriptions []*partitionConsumer) { + for _, child := range newSubscriptions { + bc.subscriptions[child] = none{} + Logger.Printf("consumer/broker/%d added subscription to %s/%d\n", bc.broker.ID(), child.topic, child.partition) + } + + for child := range bc.subscriptions { + select { + case <-child.dying: + Logger.Printf("consumer/broker/%d closed dead subscription to %s/%d\n", bc.broker.ID(), child.topic, child.partition) + close(child.trigger) + delete(bc.subscriptions, child) + default: + break + } + } +} + +func (bc *brokerConsumer) handleResponses() { + // handles the response codes left for us by our subscriptions, and abandons ones that have been closed + for child := range bc.subscriptions { + result := child.responseResult + child.responseResult = nil + + switch result { + case nil: + break + case errTimedOut: + Logger.Printf("consumer/broker/%d abandoned subscription to %s/%d because consuming was taking too long\n", + bc.broker.ID(), child.topic, child.partition) + delete(bc.subscriptions, child) + case ErrOffsetOutOfRange: + // there's no point in retrying this it will just fail the same way again + // shut it down and force the user to choose what to do + child.sendError(result) + Logger.Printf("consumer/%s/%d shutting down because %s\n", child.topic, child.partition, result) + close(child.trigger) + delete(bc.subscriptions, child) + case ErrUnknownTopicOrPartition, ErrNotLeaderForPartition, ErrLeaderNotAvailable: + // not an error, but does need redispatching + Logger.Printf("consumer/broker/%d abandoned subscription to %s/%d because %s\n", + bc.broker.ID(), child.topic, child.partition, result) + child.trigger <- none{} + delete(bc.subscriptions, child) + default: + // dunno, tell the user and try redispatching + child.sendError(result) + Logger.Printf("consumer/broker/%d abandoned subscription to %s/%d because %s\n", + bc.broker.ID(), child.topic, child.partition, result) + child.trigger <- none{} + delete(bc.subscriptions, child) + } + } +} + +func (bc *brokerConsumer) abort(err error) { + bc.consumer.abandonBrokerConsumer(bc) + _ = bc.broker.Close() // we don't care about the error this might return, we already have one + + for child := range bc.subscriptions { + child.sendError(err) + child.trigger <- none{} + } + + for newSubscription := range bc.newSubscriptions { + for _, child := range newSubscription { + child.sendError(err) + child.trigger <- none{} + } + } +} + +func (bc *brokerConsumer) fetchNewMessages() (*FetchResponse, error) { + request := &FetchRequest{ + MinBytes: bc.consumer.conf.Consumer.Fetch.Min, + MaxWaitTime: int32(bc.consumer.conf.Consumer.MaxWaitTime / time.Millisecond), + } + + for child := range bc.subscriptions { + request.AddBlock(child.topic, child.partition, child.offset, child.fetchSize) + } + + return bc.broker.Fetch(request) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/consumer_metadata_request.go b/Godeps/_workspace/src/github.com/Shopify/sarama/consumer_metadata_request.go new file mode 100644 index 0000000..9b8fcd7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/consumer_metadata_request.go @@ -0,0 +1,22 @@ +package sarama + +type ConsumerMetadataRequest struct { + ConsumerGroup string +} + +func (r *ConsumerMetadataRequest) encode(pe packetEncoder) error { + return pe.putString(r.ConsumerGroup) +} + +func (r *ConsumerMetadataRequest) decode(pd packetDecoder) (err error) { + r.ConsumerGroup, err = pd.getString() + return err +} + +func (r *ConsumerMetadataRequest) key() int16 { + return 10 +} + +func (r *ConsumerMetadataRequest) version() int16 { + return 0 +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/consumer_metadata_response.go b/Godeps/_workspace/src/github.com/Shopify/sarama/consumer_metadata_response.go new file mode 100644 index 0000000..d6b5614 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/consumer_metadata_response.go @@ -0,0 +1,73 @@ +package sarama + +import ( + "net" + "strconv" +) + +type ConsumerMetadataResponse struct { + Err KError + Coordinator *Broker + CoordinatorID int32 // deprecated: use Coordinator.ID() + CoordinatorHost string // deprecated: use Coordinator.Addr() + CoordinatorPort int32 // deprecated: use Coordinator.Addr() +} + +func (r *ConsumerMetadataResponse) decode(pd packetDecoder) (err error) { + tmp, err := pd.getInt16() + if err != nil { + return err + } + r.Err = KError(tmp) + + coordinator := new(Broker) + if err := coordinator.decode(pd); err != nil { + return err + } + if coordinator.addr == ":0" { + return nil + } + r.Coordinator = coordinator + + // this can all go away in 2.0, but we have to fill in deprecated fields to maintain + // backwards compatibility + host, portstr, err := net.SplitHostPort(r.Coordinator.Addr()) + if err != nil { + return err + } + port, err := strconv.ParseInt(portstr, 10, 32) + if err != nil { + return err + } + r.CoordinatorID = r.Coordinator.ID() + r.CoordinatorHost = host + r.CoordinatorPort = int32(port) + + return nil +} + +func (r *ConsumerMetadataResponse) encode(pe packetEncoder) error { + pe.putInt16(int16(r.Err)) + if r.Coordinator != nil { + host, portstr, err := net.SplitHostPort(r.Coordinator.Addr()) + if err != nil { + return err + } + port, err := strconv.ParseInt(portstr, 10, 32) + if err != nil { + return err + } + pe.putInt32(r.Coordinator.ID()) + if err := pe.putString(host); err != nil { + return err + } + pe.putInt32(int32(port)) + return nil + } + pe.putInt32(r.CoordinatorID) + if err := pe.putString(r.CoordinatorHost); err != nil { + return err + } + pe.putInt32(r.CoordinatorPort) + return nil +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/crc32_field.go b/Godeps/_workspace/src/github.com/Shopify/sarama/crc32_field.go new file mode 100644 index 0000000..5c28607 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/crc32_field.go @@ -0,0 +1,36 @@ +package sarama + +import ( + "encoding/binary" + + "github.com/klauspost/crc32" +) + +// crc32Field implements the pushEncoder and pushDecoder interfaces for calculating CRC32s. +type crc32Field struct { + startOffset int +} + +func (c *crc32Field) saveOffset(in int) { + c.startOffset = in +} + +func (c *crc32Field) reserveLength() int { + return 4 +} + +func (c *crc32Field) run(curOffset int, buf []byte) error { + crc := crc32.ChecksumIEEE(buf[c.startOffset+4 : curOffset]) + binary.BigEndian.PutUint32(buf[c.startOffset:], crc) + return nil +} + +func (c *crc32Field) check(curOffset int, buf []byte) error { + crc := crc32.ChecksumIEEE(buf[c.startOffset+4 : curOffset]) + + if crc != binary.BigEndian.Uint32(buf[c.startOffset:]) { + return PacketDecodingError{"CRC didn't match"} + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/describe_groups_request.go b/Godeps/_workspace/src/github.com/Shopify/sarama/describe_groups_request.go new file mode 100644 index 0000000..c9426a6 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/describe_groups_request.go @@ -0,0 +1,26 @@ +package sarama + +type DescribeGroupsRequest struct { + Groups []string +} + +func (r *DescribeGroupsRequest) encode(pe packetEncoder) error { + return pe.putStringArray(r.Groups) +} + +func (r *DescribeGroupsRequest) decode(pd packetDecoder) (err error) { + r.Groups, err = pd.getStringArray() + return +} + +func (r *DescribeGroupsRequest) key() int16 { + return 15 +} + +func (r *DescribeGroupsRequest) version() int16 { + return 0 +} + +func (r *DescribeGroupsRequest) AddGroup(group string) { + r.Groups = append(r.Groups, group) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/describe_groups_response.go b/Godeps/_workspace/src/github.com/Shopify/sarama/describe_groups_response.go new file mode 100644 index 0000000..b4b32dd --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/describe_groups_response.go @@ -0,0 +1,162 @@ +package sarama + +type DescribeGroupsResponse struct { + Groups []*GroupDescription +} + +func (r *DescribeGroupsResponse) encode(pe packetEncoder) error { + if err := pe.putArrayLength(len(r.Groups)); err != nil { + return err + } + + for _, groupDescription := range r.Groups { + if err := groupDescription.encode(pe); err != nil { + return err + } + } + + return nil +} + +func (r *DescribeGroupsResponse) decode(pd packetDecoder) (err error) { + n, err := pd.getArrayLength() + if err != nil { + return err + } + + r.Groups = make([]*GroupDescription, n) + for i := 0; i < n; i++ { + r.Groups[i] = new(GroupDescription) + if err := r.Groups[i].decode(pd); err != nil { + return err + } + } + + return nil +} + +type GroupDescription struct { + Err KError + GroupId string + State string + ProtocolType string + Protocol string + Members map[string]*GroupMemberDescription +} + +func (gd *GroupDescription) encode(pe packetEncoder) error { + pe.putInt16(int16(gd.Err)) + + if err := pe.putString(gd.GroupId); err != nil { + return err + } + if err := pe.putString(gd.State); err != nil { + return err + } + if err := pe.putString(gd.ProtocolType); err != nil { + return err + } + if err := pe.putString(gd.Protocol); err != nil { + return err + } + + if err := pe.putArrayLength(len(gd.Members)); err != nil { + return err + } + + for memberId, groupMemberDescription := range gd.Members { + if err := pe.putString(memberId); err != nil { + return err + } + if err := groupMemberDescription.encode(pe); err != nil { + return err + } + } + + return nil +} + +func (gd *GroupDescription) decode(pd packetDecoder) (err error) { + if kerr, err := pd.getInt16(); err != nil { + return err + } else { + gd.Err = KError(kerr) + } + + if gd.GroupId, err = pd.getString(); err != nil { + return + } + if gd.State, err = pd.getString(); err != nil { + return + } + if gd.ProtocolType, err = pd.getString(); err != nil { + return + } + if gd.Protocol, err = pd.getString(); err != nil { + return + } + + n, err := pd.getArrayLength() + if err != nil { + return err + } + if n == 0 { + return nil + } + + gd.Members = make(map[string]*GroupMemberDescription) + for i := 0; i < n; i++ { + memberId, err := pd.getString() + if err != nil { + return err + } + + gd.Members[memberId] = new(GroupMemberDescription) + if err := gd.Members[memberId].decode(pd); err != nil { + return err + } + } + + return nil +} + +type GroupMemberDescription struct { + ClientId string + ClientHost string + MemberMetadata []byte + MemberAssignment []byte +} + +func (gmd *GroupMemberDescription) encode(pe packetEncoder) error { + if err := pe.putString(gmd.ClientId); err != nil { + return err + } + if err := pe.putString(gmd.ClientHost); err != nil { + return err + } + if err := pe.putBytes(gmd.MemberMetadata); err != nil { + return err + } + if err := pe.putBytes(gmd.MemberAssignment); err != nil { + return err + } + + return nil +} + +func (gmd *GroupMemberDescription) decode(pd packetDecoder) (err error) { + if gmd.ClientId, err = pd.getString(); err != nil { + return + } + if gmd.ClientHost, err = pd.getString(); err != nil { + return + } + if gmd.MemberMetadata, err = pd.getBytes(); err != nil { + return + } + if gmd.MemberAssignment, err = pd.getBytes(); err != nil { + return + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/encoder_decoder.go b/Godeps/_workspace/src/github.com/Shopify/sarama/encoder_decoder.go new file mode 100644 index 0000000..b91efaa --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/encoder_decoder.go @@ -0,0 +1,62 @@ +package sarama + +import "fmt" + +// Encoder is the interface that wraps the basic Encode method. +// Anything implementing Encoder can be turned into bytes using Kafka's encoding rules. +type encoder interface { + encode(pe packetEncoder) error +} + +// Encode takes an Encoder and turns it into bytes. +func encode(e encoder) ([]byte, error) { + if e == nil { + return nil, nil + } + + var prepEnc prepEncoder + var realEnc realEncoder + + err := e.encode(&prepEnc) + if err != nil { + return nil, err + } + + if prepEnc.length < 0 || prepEnc.length > int(MaxRequestSize) { + return nil, PacketEncodingError{fmt.Sprintf("invalid request size (%d)", prepEnc.length)} + } + + realEnc.raw = make([]byte, prepEnc.length) + err = e.encode(&realEnc) + if err != nil { + return nil, err + } + + return realEnc.raw, nil +} + +// Decoder is the interface that wraps the basic Decode method. +// Anything implementing Decoder can be extracted from bytes using Kafka's encoding rules. +type decoder interface { + decode(pd packetDecoder) error +} + +// Decode takes bytes and a Decoder and fills the fields of the decoder from the bytes, +// interpreted using Kafka's encoding rules. +func decode(buf []byte, in decoder) error { + if buf == nil { + return nil + } + + helper := realDecoder{raw: buf} + err := in.decode(&helper) + if err != nil { + return err + } + + if helper.off != len(buf) { + return PacketDecodingError{"invalid length"} + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/errors.go b/Godeps/_workspace/src/github.com/Shopify/sarama/errors.go new file mode 100644 index 0000000..a837087 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/errors.go @@ -0,0 +1,179 @@ +package sarama + +import ( + "errors" + "fmt" +) + +// ErrOutOfBrokers is the error returned when the client has run out of brokers to talk to because all of them errored +// or otherwise failed to respond. +var ErrOutOfBrokers = errors.New("kafka: client has run out of available brokers to talk to (Is your cluster reachable?)") + +// ErrClosedClient is the error returned when a method is called on a client that has been closed. +var ErrClosedClient = errors.New("kafka: tried to use a client that was closed") + +// ErrIncompleteResponse is the error returned when the server returns a syntactically valid response, but it does +// not contain the expected information. +var ErrIncompleteResponse = errors.New("kafka: response did not contain all the expected topic/partition blocks") + +// ErrInvalidPartition is the error returned when a partitioner returns an invalid partition index +// (meaning one outside of the range [0...numPartitions-1]). +var ErrInvalidPartition = errors.New("kafka: partitioner returned an invalid partition index") + +// ErrAlreadyConnected is the error returned when calling Open() on a Broker that is already connected or connecting. +var ErrAlreadyConnected = errors.New("kafka: broker connection already initiated") + +// ErrNotConnected is the error returned when trying to send or call Close() on a Broker that is not connected. +var ErrNotConnected = errors.New("kafka: broker not connected") + +// ErrInsufficientData is returned when decoding and the packet is truncated. This can be expected +// when requesting messages, since as an optimization the server is allowed to return a partial message at the end +// of the message set. +var ErrInsufficientData = errors.New("kafka: insufficient data to decode packet, more bytes expected") + +// ErrShuttingDown is returned when a producer receives a message during shutdown. +var ErrShuttingDown = errors.New("kafka: message received by producer in process of shutting down") + +// ErrMessageTooLarge is returned when the next message to consume is larger than the configured Consumer.Fetch.Max +var ErrMessageTooLarge = errors.New("kafka: message is larger than Consumer.Fetch.Max") + +// PacketEncodingError is returned from a failure while encoding a Kafka packet. This can happen, for example, +// if you try to encode a string over 2^15 characters in length, since Kafka's encoding rules do not permit that. +type PacketEncodingError struct { + Info string +} + +func (err PacketEncodingError) Error() string { + return fmt.Sprintf("kafka: error encoding packet: %s", err.Info) +} + +// PacketDecodingError is returned when there was an error (other than truncated data) decoding the Kafka broker's response. +// This can be a bad CRC or length field, or any other invalid value. +type PacketDecodingError struct { + Info string +} + +func (err PacketDecodingError) Error() string { + return fmt.Sprintf("kafka: error decoding packet: %s", err.Info) +} + +// ConfigurationError is the type of error returned from a constructor (e.g. NewClient, or NewConsumer) +// when the specified configuration is invalid. +type ConfigurationError string + +func (err ConfigurationError) Error() string { + return "kafka: invalid configuration (" + string(err) + ")" +} + +// KError is the type of error that can be returned directly by the Kafka broker. +// See https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol#AGuideToTheKafkaProtocol-ErrorCodes +type KError int16 + +// Numeric error codes returned by the Kafka server. +const ( + ErrNoError KError = 0 + ErrUnknown KError = -1 + ErrOffsetOutOfRange KError = 1 + ErrInvalidMessage KError = 2 + ErrUnknownTopicOrPartition KError = 3 + ErrInvalidMessageSize KError = 4 + ErrLeaderNotAvailable KError = 5 + ErrNotLeaderForPartition KError = 6 + ErrRequestTimedOut KError = 7 + ErrBrokerNotAvailable KError = 8 + ErrReplicaNotAvailable KError = 9 + ErrMessageSizeTooLarge KError = 10 + ErrStaleControllerEpochCode KError = 11 + ErrOffsetMetadataTooLarge KError = 12 + ErrOffsetsLoadInProgress KError = 14 + ErrConsumerCoordinatorNotAvailable KError = 15 + ErrNotCoordinatorForConsumer KError = 16 + ErrInvalidTopic KError = 17 + ErrMessageSetSizeTooLarge KError = 18 + ErrNotEnoughReplicas KError = 19 + ErrNotEnoughReplicasAfterAppend KError = 20 + ErrInvalidRequiredAcks KError = 21 + ErrIllegalGeneration KError = 22 + ErrInconsistentGroupProtocol KError = 23 + ErrInvalidGroupId KError = 24 + ErrUnknownMemberId KError = 25 + ErrInvalidSessionTimeout KError = 26 + ErrRebalanceInProgress KError = 27 + ErrInvalidCommitOffsetSize KError = 28 + ErrTopicAuthorizationFailed KError = 29 + ErrGroupAuthorizationFailed KError = 30 + ErrClusterAuthorizationFailed KError = 31 +) + +func (err KError) Error() string { + // Error messages stolen/adapted from + // https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol + switch err { + case ErrNoError: + return "kafka server: Not an error, why are you printing me?" + case ErrUnknown: + return "kafka server: Unexpected (unknown?) server error." + case ErrOffsetOutOfRange: + return "kafka server: The requested offset is outside the range of offsets maintained by the server for the given topic/partition." + case ErrInvalidMessage: + return "kafka server: Message contents does not match its CRC." + case ErrUnknownTopicOrPartition: + return "kafka server: Request was for a topic or partition that does not exist on this broker." + case ErrInvalidMessageSize: + return "kafka server: The message has a negative size." + case ErrLeaderNotAvailable: + return "kafka server: In the middle of a leadership election, there is currently no leader for this partition and hence it is unavailable for writes." + case ErrNotLeaderForPartition: + return "kafka server: Tried to send a message to a replica that is not the leader for some partition. Your metadata is out of date." + case ErrRequestTimedOut: + return "kafka server: Request exceeded the user-specified time limit in the request." + case ErrBrokerNotAvailable: + return "kafka server: Broker not available. Not a client facing error, we should never receive this!!!" + case ErrReplicaNotAvailable: + return "kafka server: Replica infomation not available, one or more brokers are down." + case ErrMessageSizeTooLarge: + return "kafka server: Message was too large, server rejected it to avoid allocation error." + case ErrStaleControllerEpochCode: + return "kafka server: StaleControllerEpochCode (internal error code for broker-to-broker communication)." + case ErrOffsetMetadataTooLarge: + return "kafka server: Specified a string larger than the configured maximum for offset metadata." + case ErrOffsetsLoadInProgress: + return "kafka server: The broker is still loading offsets after a leader change for that offset's topic partition." + case ErrConsumerCoordinatorNotAvailable: + return "kafka server: Offset's topic has not yet been created." + case ErrNotCoordinatorForConsumer: + return "kafka server: Request was for a consumer group that is not coordinated by this broker." + case ErrInvalidTopic: + return "kafka server: The request attempted to perform an operation on an invalid topic." + case ErrMessageSetSizeTooLarge: + return "kafka server: The request included message batch larger than the configured segment size on the server." + case ErrNotEnoughReplicas: + return "kafka server: Messages are rejected since there are fewer in-sync replicas than required." + case ErrNotEnoughReplicasAfterAppend: + return "kafka server: Messages are written to the log, but to fewer in-sync replicas than required." + case ErrInvalidRequiredAcks: + return "kafka server: The number of required acks is invalid (should be either -1, 0, or 1)." + case ErrIllegalGeneration: + return "kafka server: The provided generation id is not the current generation." + case ErrInconsistentGroupProtocol: + return "kafka server: The provider group protocol type is incompatible with the other members." + case ErrInvalidGroupId: + return "kafka server: The provided group id was empty." + case ErrUnknownMemberId: + return "kafka server: The provided member is not known in the current generation." + case ErrInvalidSessionTimeout: + return "kafka server: The provided session timeout is outside the allowed range." + case ErrRebalanceInProgress: + return "kafka server: A rebalance for the group is in progress. Please re-join the group." + case ErrInvalidCommitOffsetSize: + return "kafka server: The provided commit metadata was too large." + case ErrTopicAuthorizationFailed: + return "kafka server: The client is not authorized to access this topic." + case ErrGroupAuthorizationFailed: + return "kafka server: The client is not authorized to access this group." + case ErrClusterAuthorizationFailed: + return "kafka server: The client is not authorized to send this request type." + } + + return fmt.Sprintf("Unknown error, how did this happen? Error code = %d", err) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/examples/README.md b/Godeps/_workspace/src/github.com/Shopify/sarama/examples/README.md new file mode 100644 index 0000000..b658805 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/examples/README.md @@ -0,0 +1,9 @@ +# Sarama examples + +This folder contains example applications to demonstrate the use of Sarama. For code snippet examples on how to use the different types in Sarama, see [Sarams's API documentation on godoc.org](https://godoc.org/github.com/Shopify/sarama) + +In these examples, we use `github.com/Shopify/sarama` as import path. We do this to ensure all the examples are up to date with the latest changes in Sarama. For your own applications, you may want to use `gopkg.in/Shopify/sarama.v1` to lock into a stable API version. + +#### HTTP server + +[http_server](./http_server) is a simple HTTP server uses both the sync producer to produce data as part of the request handling cycle, as well as the async producer to maintain an access log. It also uses the [mocks subpackage](https://godoc.org/github.com/Shopify/sarama/mocks) to test both. diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/examples/http_server/.gitignore b/Godeps/_workspace/src/github.com/Shopify/sarama/examples/http_server/.gitignore new file mode 100644 index 0000000..9f6ed42 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/examples/http_server/.gitignore @@ -0,0 +1,2 @@ +http_server +http_server.test diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/examples/http_server/README.md b/Godeps/_workspace/src/github.com/Shopify/sarama/examples/http_server/README.md new file mode 100644 index 0000000..5ff2bc2 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/examples/http_server/README.md @@ -0,0 +1,7 @@ +# HTTP server example + +This HTTP server example shows you how to use the AsyncProducer and SyncProducer, and how to test them using mocks. The server simply sends the data of the HTTP request's query string to Kafka, and send a 200 result if that succeeds. For every request, it will send an access log entry to Kafka as well in the background. + +If you need to know whether a message was successfully sent to the Kafka cluster before you can send your HTTP response, using the `SyncProducer` is probably the simplest way to achieve this. If you don't care, e.g. for the access log, using the `AsyncProducer` will let you fire and forget. You can send the HTTP response, while the message is being produced in the background. + +One important thing to note is that both the `SyncProducer` and `AsyncProducer` are **thread-safe**. Go's `http.Server` handles requests concurrently in different goroutines, but you can use a single producer safely. This will actually achieve efficiency gains as the producer will be able to batch messages from concurrent requests together. diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/examples/http_server/http_server.go b/Godeps/_workspace/src/github.com/Shopify/sarama/examples/http_server/http_server.go new file mode 100644 index 0000000..03e47b6 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/examples/http_server/http_server.go @@ -0,0 +1,246 @@ +package main + +import ( + "github.com/Shopify/sarama" + + "crypto/tls" + "crypto/x509" + "encoding/json" + "flag" + "fmt" + "io/ioutil" + "log" + "net/http" + "os" + "strings" + "time" +) + +var ( + addr = flag.String("addr", ":8080", "The address to bind to") + brokers = flag.String("brokers", os.Getenv("KAFKA_PEERS"), "The Kafka brokers to connect to, as a comma separated list") + verbose = flag.Bool("verbose", false, "Turn on Sarama logging") + certFile = flag.String("certificate", "", "The optional certificate file for client authentication") + keyFile = flag.String("key", "", "The optional key file for client authentication") + caFile = flag.String("ca", "", "The optional certificate authority file for TLS client authentication") + verifySsl = flag.Bool("verify", false, "Optional verify ssl certificates chain") +) + +func main() { + flag.Parse() + + if *verbose { + sarama.Logger = log.New(os.Stdout, "[sarama] ", log.LstdFlags) + } + + if *brokers == "" { + flag.PrintDefaults() + os.Exit(1) + } + + brokerList := strings.Split(*brokers, ",") + log.Printf("Kafka brokers: %s", strings.Join(brokerList, ", ")) + + server := &Server{ + DataCollector: newDataCollector(brokerList), + AccessLogProducer: newAccessLogProducer(brokerList), + } + defer func() { + if err := server.Close(); err != nil { + log.Println("Failed to close server", err) + } + }() + + log.Fatal(server.Run(*addr)) +} + +func createTlsConfiguration() (t *tls.Config) { + if *certFile != "" && *keyFile != "" && *caFile != "" { + cert, err := tls.LoadX509KeyPair(*certFile, *keyFile) + if err != nil { + log.Fatal(err) + } + + caCert, err := ioutil.ReadFile(*caFile) + if err != nil { + log.Fatal(err) + } + + caCertPool := x509.NewCertPool() + caCertPool.AppendCertsFromPEM(caCert) + + t = &tls.Config{ + Certificates: []tls.Certificate{cert}, + RootCAs: caCertPool, + InsecureSkipVerify: *verifySsl, + } + } + // will be nil by default if nothing is provided + return t +} + +type Server struct { + DataCollector sarama.SyncProducer + AccessLogProducer sarama.AsyncProducer +} + +func (s *Server) Close() error { + if err := s.DataCollector.Close(); err != nil { + log.Println("Failed to shut down data collector cleanly", err) + } + + if err := s.AccessLogProducer.Close(); err != nil { + log.Println("Failed to shut down access log producer cleanly", err) + } + + return nil +} + +func (s *Server) Handler() http.Handler { + return s.withAccessLog(s.collectQueryStringData()) +} + +func (s *Server) Run(addr string) error { + httpServer := &http.Server{ + Addr: addr, + Handler: s.Handler(), + } + + log.Printf("Listening for requests on %s...\n", addr) + return httpServer.ListenAndServe() +} + +func (s *Server) collectQueryStringData() http.Handler { + return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + if r.URL.Path != "/" { + http.NotFound(w, r) + return + } + + // We are not setting a message key, which means that all messages will + // be distributed randomly over the different partitions. + partition, offset, err := s.DataCollector.SendMessage(&sarama.ProducerMessage{ + Topic: "important", + Value: sarama.StringEncoder(r.URL.RawQuery), + }) + + if err != nil { + w.WriteHeader(http.StatusInternalServerError) + fmt.Fprintf(w, "Failed to store your data:, %s", err) + } else { + // The tuple (topic, partition, offset) can be used as a unique identifier + // for a message in a Kafka cluster. + fmt.Fprintf(w, "Your data is stored with unique identifier important/%d/%d", partition, offset) + } + }) +} + +type accessLogEntry struct { + Method string `json:"method"` + Host string `json:"host"` + Path string `json:"path"` + IP string `json:"ip"` + ResponseTime float64 `json:"response_time"` + + encoded []byte + err error +} + +func (ale *accessLogEntry) ensureEncoded() { + if ale.encoded == nil && ale.err == nil { + ale.encoded, ale.err = json.Marshal(ale) + } +} + +func (ale *accessLogEntry) Length() int { + ale.ensureEncoded() + return len(ale.encoded) +} + +func (ale *accessLogEntry) Encode() ([]byte, error) { + ale.ensureEncoded() + return ale.encoded, ale.err +} + +func (s *Server) withAccessLog(next http.Handler) http.Handler { + + return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + started := time.Now() + + next.ServeHTTP(w, r) + + entry := &accessLogEntry{ + Method: r.Method, + Host: r.Host, + Path: r.RequestURI, + IP: r.RemoteAddr, + ResponseTime: float64(time.Since(started)) / float64(time.Second), + } + + // We will use the client's IP address as key. This will cause + // all the access log entries of the same IP address to end up + // on the same partition. + s.AccessLogProducer.Input() <- &sarama.ProducerMessage{ + Topic: "access_log", + Key: sarama.StringEncoder(r.RemoteAddr), + Value: entry, + } + }) +} + +func newDataCollector(brokerList []string) sarama.SyncProducer { + + // For the data collector, we are looking for strong consistency semantics. + // Because we don't change the flush settings, sarama will try to produce messages + // as fast as possible to keep latency low. + config := sarama.NewConfig() + config.Producer.RequiredAcks = sarama.WaitForAll // Wait for all in-sync replicas to ack the message + config.Producer.Retry.Max = 10 // Retry up to 10 times to produce the message + tlsConfig := createTlsConfiguration() + if tlsConfig != nil { + config.Net.TLS.Config = tlsConfig + config.Net.TLS.Enable = true + } + + // On the broker side, you may want to change the following settings to get + // stronger consistency guarantees: + // - For your broker, set `unclean.leader.election.enable` to false + // - For the topic, you could increase `min.insync.replicas`. + + producer, err := sarama.NewSyncProducer(brokerList, config) + if err != nil { + log.Fatalln("Failed to start Sarama producer:", err) + } + + return producer +} + +func newAccessLogProducer(brokerList []string) sarama.AsyncProducer { + + // For the access log, we are looking for AP semantics, with high throughput. + // By creating batches of compressed messages, we reduce network I/O at a cost of more latency. + config := sarama.NewConfig() + tlsConfig := createTlsConfiguration() + if tlsConfig != nil { + config.Net.TLS.Enable = true + config.Net.TLS.Config = tlsConfig + } + config.Producer.RequiredAcks = sarama.WaitForLocal // Only wait for the leader to ack + config.Producer.Compression = sarama.CompressionSnappy // Compress messages + config.Producer.Flush.Frequency = 500 * time.Millisecond // Flush batches every 500ms + + producer, err := sarama.NewAsyncProducer(brokerList, config) + if err != nil { + log.Fatalln("Failed to start Sarama producer:", err) + } + + // We will just log to STDOUT if we're not able to produce messages. + // Note: messages will only be returned here after all retry attempts are exhausted. + go func() { + for err := range producer.Errors() { + log.Println("Failed to write access log entry:", err) + } + }() + + return producer +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/fetch_request.go b/Godeps/_workspace/src/github.com/Shopify/sarama/fetch_request.go new file mode 100644 index 0000000..3c00fad --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/fetch_request.go @@ -0,0 +1,123 @@ +package sarama + +type fetchRequestBlock struct { + fetchOffset int64 + maxBytes int32 +} + +func (f *fetchRequestBlock) encode(pe packetEncoder) error { + pe.putInt64(f.fetchOffset) + pe.putInt32(f.maxBytes) + return nil +} + +func (f *fetchRequestBlock) decode(pd packetDecoder) (err error) { + if f.fetchOffset, err = pd.getInt64(); err != nil { + return err + } + if f.maxBytes, err = pd.getInt32(); err != nil { + return err + } + return nil +} + +type FetchRequest struct { + MaxWaitTime int32 + MinBytes int32 + blocks map[string]map[int32]*fetchRequestBlock +} + +func (f *FetchRequest) encode(pe packetEncoder) (err error) { + pe.putInt32(-1) // replica ID is always -1 for clients + pe.putInt32(f.MaxWaitTime) + pe.putInt32(f.MinBytes) + err = pe.putArrayLength(len(f.blocks)) + if err != nil { + return err + } + for topic, blocks := range f.blocks { + err = pe.putString(topic) + if err != nil { + return err + } + err = pe.putArrayLength(len(blocks)) + if err != nil { + return err + } + for partition, block := range blocks { + pe.putInt32(partition) + err = block.encode(pe) + if err != nil { + return err + } + } + } + return nil +} + +func (f *FetchRequest) decode(pd packetDecoder) (err error) { + if _, err = pd.getInt32(); err != nil { + return err + } + if f.MaxWaitTime, err = pd.getInt32(); err != nil { + return err + } + if f.MinBytes, err = pd.getInt32(); err != nil { + return err + } + topicCount, err := pd.getArrayLength() + if err != nil { + return err + } + if topicCount == 0 { + return nil + } + f.blocks = make(map[string]map[int32]*fetchRequestBlock) + for i := 0; i < topicCount; i++ { + topic, err := pd.getString() + if err != nil { + return err + } + partitionCount, err := pd.getArrayLength() + if err != nil { + return err + } + f.blocks[topic] = make(map[int32]*fetchRequestBlock) + for j := 0; j < partitionCount; j++ { + partition, err := pd.getInt32() + if err != nil { + return err + } + fetchBlock := &fetchRequestBlock{} + if err = fetchBlock.decode(pd); err != nil { + return nil + } + f.blocks[topic][partition] = fetchBlock + } + } + return nil +} + +func (f *FetchRequest) key() int16 { + return 1 +} + +func (f *FetchRequest) version() int16 { + return 0 +} + +func (f *FetchRequest) AddBlock(topic string, partitionID int32, fetchOffset int64, maxBytes int32) { + if f.blocks == nil { + f.blocks = make(map[string]map[int32]*fetchRequestBlock) + } + + if f.blocks[topic] == nil { + f.blocks[topic] = make(map[int32]*fetchRequestBlock) + } + + tmp := new(fetchRequestBlock) + tmp.maxBytes = maxBytes + tmp.fetchOffset = fetchOffset + + f.blocks[topic][partitionID] = tmp +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/fetch_response.go b/Godeps/_workspace/src/github.com/Shopify/sarama/fetch_response.go new file mode 100644 index 0000000..1ac5439 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/fetch_response.go @@ -0,0 +1,173 @@ +package sarama + +type FetchResponseBlock struct { + Err KError + HighWaterMarkOffset int64 + MsgSet MessageSet +} + +func (pr *FetchResponseBlock) decode(pd packetDecoder) (err error) { + tmp, err := pd.getInt16() + if err != nil { + return err + } + pr.Err = KError(tmp) + + pr.HighWaterMarkOffset, err = pd.getInt64() + if err != nil { + return err + } + + msgSetSize, err := pd.getInt32() + if err != nil { + return err + } + + msgSetDecoder, err := pd.getSubset(int(msgSetSize)) + if err != nil { + return err + } + err = (&pr.MsgSet).decode(msgSetDecoder) + + return err +} + +type FetchResponse struct { + Blocks map[string]map[int32]*FetchResponseBlock +} + +func (pr *FetchResponseBlock) encode(pe packetEncoder) (err error) { + pe.putInt16(int16(pr.Err)) + + pe.putInt64(pr.HighWaterMarkOffset) + + pe.push(&lengthField{}) + err = pr.MsgSet.encode(pe) + if err != nil { + return err + } + return pe.pop() +} + +func (fr *FetchResponse) decode(pd packetDecoder) (err error) { + numTopics, err := pd.getArrayLength() + if err != nil { + return err + } + + fr.Blocks = make(map[string]map[int32]*FetchResponseBlock, numTopics) + for i := 0; i < numTopics; i++ { + name, err := pd.getString() + if err != nil { + return err + } + + numBlocks, err := pd.getArrayLength() + if err != nil { + return err + } + + fr.Blocks[name] = make(map[int32]*FetchResponseBlock, numBlocks) + + for j := 0; j < numBlocks; j++ { + id, err := pd.getInt32() + if err != nil { + return err + } + + block := new(FetchResponseBlock) + err = block.decode(pd) + if err != nil { + return err + } + fr.Blocks[name][id] = block + } + } + + return nil +} + +func (fr *FetchResponse) encode(pe packetEncoder) (err error) { + err = pe.putArrayLength(len(fr.Blocks)) + if err != nil { + return err + } + + for topic, partitions := range fr.Blocks { + err = pe.putString(topic) + if err != nil { + return err + } + + err = pe.putArrayLength(len(partitions)) + if err != nil { + return err + } + + for id, block := range partitions { + pe.putInt32(id) + err = block.encode(pe) + if err != nil { + return err + } + } + + } + return nil +} + +func (fr *FetchResponse) GetBlock(topic string, partition int32) *FetchResponseBlock { + if fr.Blocks == nil { + return nil + } + + if fr.Blocks[topic] == nil { + return nil + } + + return fr.Blocks[topic][partition] +} + +func (fr *FetchResponse) AddError(topic string, partition int32, err KError) { + if fr.Blocks == nil { + fr.Blocks = make(map[string]map[int32]*FetchResponseBlock) + } + partitions, ok := fr.Blocks[topic] + if !ok { + partitions = make(map[int32]*FetchResponseBlock) + fr.Blocks[topic] = partitions + } + frb, ok := partitions[partition] + if !ok { + frb = new(FetchResponseBlock) + partitions[partition] = frb + } + frb.Err = err +} + +func (fr *FetchResponse) AddMessage(topic string, partition int32, key, value Encoder, offset int64) { + if fr.Blocks == nil { + fr.Blocks = make(map[string]map[int32]*FetchResponseBlock) + } + partitions, ok := fr.Blocks[topic] + if !ok { + partitions = make(map[int32]*FetchResponseBlock) + fr.Blocks[topic] = partitions + } + frb, ok := partitions[partition] + if !ok { + frb = new(FetchResponseBlock) + partitions[partition] = frb + } + var kb []byte + var vb []byte + if key != nil { + kb, _ = key.Encode() + } + if value != nil { + vb, _ = value.Encode() + } + msg := &Message{Key: kb, Value: vb} + msgBlock := &MessageBlock{Msg: msg, Offset: offset} + frb.MsgSet.Messages = append(frb.MsgSet.Messages, msgBlock) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/heartbeat_request.go b/Godeps/_workspace/src/github.com/Shopify/sarama/heartbeat_request.go new file mode 100644 index 0000000..b89d290 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/heartbeat_request.go @@ -0,0 +1,43 @@ +package sarama + +type HeartbeatRequest struct { + GroupId string + GenerationId int32 + MemberId string +} + +func (r *HeartbeatRequest) encode(pe packetEncoder) error { + if err := pe.putString(r.GroupId); err != nil { + return err + } + + pe.putInt32(r.GenerationId) + + if err := pe.putString(r.MemberId); err != nil { + return err + } + + return nil +} + +func (r *HeartbeatRequest) decode(pd packetDecoder) (err error) { + if r.GroupId, err = pd.getString(); err != nil { + return + } + if r.GenerationId, err = pd.getInt32(); err != nil { + return + } + if r.MemberId, err = pd.getString(); err != nil { + return + } + + return nil +} + +func (r *HeartbeatRequest) key() int16 { + return 12 +} + +func (r *HeartbeatRequest) version() int16 { + return 0 +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/heartbeat_response.go b/Godeps/_workspace/src/github.com/Shopify/sarama/heartbeat_response.go new file mode 100644 index 0000000..b48b8c1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/heartbeat_response.go @@ -0,0 +1,20 @@ +package sarama + +type HeartbeatResponse struct { + Err KError +} + +func (r *HeartbeatResponse) encode(pe packetEncoder) error { + pe.putInt16(int16(r.Err)) + return nil +} + +func (r *HeartbeatResponse) decode(pd packetDecoder) error { + if kerr, err := pd.getInt16(); err != nil { + return err + } else { + r.Err = KError(kerr) + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/join_group_request.go b/Godeps/_workspace/src/github.com/Shopify/sarama/join_group_request.go new file mode 100644 index 0000000..8bb5ce8 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/join_group_request.go @@ -0,0 +1,94 @@ +package sarama + +type JoinGroupRequest struct { + GroupId string + SessionTimeout int32 + MemberId string + ProtocolType string + GroupProtocols map[string][]byte +} + +func (r *JoinGroupRequest) encode(pe packetEncoder) error { + if err := pe.putString(r.GroupId); err != nil { + return err + } + pe.putInt32(r.SessionTimeout) + if err := pe.putString(r.MemberId); err != nil { + return err + } + if err := pe.putString(r.ProtocolType); err != nil { + return err + } + + if err := pe.putArrayLength(len(r.GroupProtocols)); err != nil { + return err + } + for name, metadata := range r.GroupProtocols { + if err := pe.putString(name); err != nil { + return err + } + if err := pe.putBytes(metadata); err != nil { + return err + } + } + + return nil +} + +func (r *JoinGroupRequest) decode(pd packetDecoder) (err error) { + if r.GroupId, err = pd.getString(); err != nil { + return + } + + if r.SessionTimeout, err = pd.getInt32(); err != nil { + return + } + + if r.MemberId, err = pd.getString(); err != nil { + return + } + + if r.ProtocolType, err = pd.getString(); err != nil { + return + } + + n, err := pd.getArrayLength() + if err != nil { + return err + } + if n == 0 { + return nil + } + + r.GroupProtocols = make(map[string][]byte) + for i := 0; i < n; i++ { + name, err := pd.getString() + if err != nil { + return err + } + metadata, err := pd.getBytes() + if err != nil { + return err + } + + r.GroupProtocols[name] = metadata + } + + return nil +} + +func (r *JoinGroupRequest) key() int16 { + return 11 +} + +func (r *JoinGroupRequest) version() int16 { + return 0 +} + +func (r *JoinGroupRequest) AddGroupProtocol(name string, metadata []byte) { + if r.GroupProtocols == nil { + r.GroupProtocols = make(map[string][]byte) + } + + r.GroupProtocols[name] = metadata +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/join_group_response.go b/Godeps/_workspace/src/github.com/Shopify/sarama/join_group_response.go new file mode 100644 index 0000000..037a9cd --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/join_group_response.go @@ -0,0 +1,90 @@ +package sarama + +type JoinGroupResponse struct { + Err KError + GenerationId int32 + GroupProtocol string + LeaderId string + MemberId string + Members map[string][]byte +} + +func (r *JoinGroupResponse) encode(pe packetEncoder) error { + pe.putInt16(int16(r.Err)) + pe.putInt32(r.GenerationId) + + if err := pe.putString(r.GroupProtocol); err != nil { + return err + } + if err := pe.putString(r.LeaderId); err != nil { + return err + } + if err := pe.putString(r.MemberId); err != nil { + return err + } + + if err := pe.putArrayLength(len(r.Members)); err != nil { + return err + } + + for memberId, memberMetadata := range r.Members { + if err := pe.putString(memberId); err != nil { + return err + } + + if err := pe.putBytes(memberMetadata); err != nil { + return err + } + } + + return nil +} + +func (r *JoinGroupResponse) decode(pd packetDecoder) (err error) { + if kerr, err := pd.getInt16(); err != nil { + return err + } else { + r.Err = KError(kerr) + } + + if r.GenerationId, err = pd.getInt32(); err != nil { + return + } + + if r.GroupProtocol, err = pd.getString(); err != nil { + return + } + + if r.LeaderId, err = pd.getString(); err != nil { + return + } + + if r.MemberId, err = pd.getString(); err != nil { + return + } + + n, err := pd.getArrayLength() + if err != nil { + return err + } + if n == 0 { + return nil + } + + r.Members = make(map[string][]byte) + for i := 0; i < n; i++ { + memberId, err := pd.getString() + if err != nil { + return err + } + + memberMetadata, err := pd.getBytes() + if err != nil { + return err + } + + r.Members[memberId] = memberMetadata + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/leave_group_request.go b/Godeps/_workspace/src/github.com/Shopify/sarama/leave_group_request.go new file mode 100644 index 0000000..cdb4d14 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/leave_group_request.go @@ -0,0 +1,36 @@ +package sarama + +type LeaveGroupRequest struct { + GroupId string + MemberId string +} + +func (r *LeaveGroupRequest) encode(pe packetEncoder) error { + if err := pe.putString(r.GroupId); err != nil { + return err + } + if err := pe.putString(r.MemberId); err != nil { + return err + } + + return nil +} + +func (r *LeaveGroupRequest) decode(pd packetDecoder) (err error) { + if r.GroupId, err = pd.getString(); err != nil { + return + } + if r.MemberId, err = pd.getString(); err != nil { + return + } + + return nil +} + +func (r *LeaveGroupRequest) key() int16 { + return 13 +} + +func (r *LeaveGroupRequest) version() int16 { + return 0 +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/leave_group_response.go b/Godeps/_workspace/src/github.com/Shopify/sarama/leave_group_response.go new file mode 100644 index 0000000..bad1dba --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/leave_group_response.go @@ -0,0 +1,20 @@ +package sarama + +type LeaveGroupResponse struct { + Err KError +} + +func (r *LeaveGroupResponse) encode(pe packetEncoder) error { + pe.putInt16(int16(r.Err)) + return nil +} + +func (r *LeaveGroupResponse) decode(pd packetDecoder) (err error) { + if kerr, err := pd.getInt16(); err != nil { + return err + } else { + r.Err = KError(kerr) + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/length_field.go b/Godeps/_workspace/src/github.com/Shopify/sarama/length_field.go new file mode 100644 index 0000000..70078be --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/length_field.go @@ -0,0 +1,29 @@ +package sarama + +import "encoding/binary" + +// LengthField implements the PushEncoder and PushDecoder interfaces for calculating 4-byte lengths. +type lengthField struct { + startOffset int +} + +func (l *lengthField) saveOffset(in int) { + l.startOffset = in +} + +func (l *lengthField) reserveLength() int { + return 4 +} + +func (l *lengthField) run(curOffset int, buf []byte) error { + binary.BigEndian.PutUint32(buf[l.startOffset:], uint32(curOffset-l.startOffset-4)) + return nil +} + +func (l *lengthField) check(curOffset int, buf []byte) error { + if uint32(curOffset-l.startOffset-4) != binary.BigEndian.Uint32(buf[l.startOffset:]) { + return PacketDecodingError{"length field invalid"} + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/list_groups_request.go b/Godeps/_workspace/src/github.com/Shopify/sarama/list_groups_request.go new file mode 100644 index 0000000..4d74c26 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/list_groups_request.go @@ -0,0 +1,20 @@ +package sarama + +type ListGroupsRequest struct { +} + +func (r *ListGroupsRequest) encode(pe packetEncoder) error { + return nil +} + +func (r *ListGroupsRequest) decode(pd packetDecoder) (err error) { + return nil +} + +func (r *ListGroupsRequest) key() int16 { + return 16 +} + +func (r *ListGroupsRequest) version() int16 { + return 0 +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/list_groups_response.go b/Godeps/_workspace/src/github.com/Shopify/sarama/list_groups_response.go new file mode 100644 index 0000000..2f53149 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/list_groups_response.go @@ -0,0 +1,56 @@ +package sarama + +type ListGroupsResponse struct { + Err KError + Groups map[string]string +} + +func (r *ListGroupsResponse) encode(pe packetEncoder) error { + pe.putInt16(int16(r.Err)) + + if err := pe.putArrayLength(len(r.Groups)); err != nil { + return err + } + for groupId, protocolType := range r.Groups { + if err := pe.putString(groupId); err != nil { + return err + } + if err := pe.putString(protocolType); err != nil { + return err + } + } + + return nil +} + +func (r *ListGroupsResponse) decode(pd packetDecoder) error { + if kerr, err := pd.getInt16(); err != nil { + return err + } else { + r.Err = KError(kerr) + } + + n, err := pd.getArrayLength() + if err != nil { + return err + } + if n == 0 { + return nil + } + + r.Groups = make(map[string]string) + for i := 0; i < n; i++ { + groupId, err := pd.getString() + if err != nil { + return err + } + protocolType, err := pd.getString() + if err != nil { + return err + } + + r.Groups[groupId] = protocolType + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/message.go b/Godeps/_workspace/src/github.com/Shopify/sarama/message.go new file mode 100644 index 0000000..c4bdb9e --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/message.go @@ -0,0 +1,153 @@ +package sarama + +import ( + "bytes" + "compress/gzip" + "fmt" + "io/ioutil" +) + +// CompressionCodec represents the various compression codecs recognized by Kafka in messages. +type CompressionCodec int8 + +// only the last two bits are really used +const compressionCodecMask int8 = 0x03 + +const ( + CompressionNone CompressionCodec = 0 + CompressionGZIP CompressionCodec = 1 + CompressionSnappy CompressionCodec = 2 +) + +// The spec just says: "This is a version id used to allow backwards compatible evolution of the message +// binary format." but it doesn't say what the current value is, so presumably 0... +const messageFormat int8 = 0 + +type Message struct { + Codec CompressionCodec // codec used to compress the message contents + Key []byte // the message key, may be nil + Value []byte // the message contents + Set *MessageSet // the message set a message might wrap + + compressedCache []byte +} + +func (m *Message) encode(pe packetEncoder) error { + pe.push(&crc32Field{}) + + pe.putInt8(messageFormat) + + attributes := int8(m.Codec) & compressionCodecMask + pe.putInt8(attributes) + + err := pe.putBytes(m.Key) + if err != nil { + return err + } + + var payload []byte + + if m.compressedCache != nil { + payload = m.compressedCache + m.compressedCache = nil + } else { + switch m.Codec { + case CompressionNone: + payload = m.Value + case CompressionGZIP: + var buf bytes.Buffer + writer := gzip.NewWriter(&buf) + if _, err = writer.Write(m.Value); err != nil { + return err + } + if err = writer.Close(); err != nil { + return err + } + m.compressedCache = buf.Bytes() + payload = m.compressedCache + case CompressionSnappy: + tmp := snappyEncode(m.Value) + m.compressedCache = tmp + payload = m.compressedCache + default: + return PacketEncodingError{fmt.Sprintf("unsupported compression codec (%d)", m.Codec)} + } + } + + if err = pe.putBytes(payload); err != nil { + return err + } + + return pe.pop() +} + +func (m *Message) decode(pd packetDecoder) (err error) { + err = pd.push(&crc32Field{}) + if err != nil { + return err + } + + format, err := pd.getInt8() + if err != nil { + return err + } + if format != messageFormat { + return PacketDecodingError{"unexpected messageFormat"} + } + + attribute, err := pd.getInt8() + if err != nil { + return err + } + m.Codec = CompressionCodec(attribute & compressionCodecMask) + + m.Key, err = pd.getBytes() + if err != nil { + return err + } + + m.Value, err = pd.getBytes() + if err != nil { + return err + } + + switch m.Codec { + case CompressionNone: + // nothing to do + case CompressionGZIP: + if m.Value == nil { + return PacketDecodingError{"GZIP compression specified, but no data to uncompress"} + } + reader, err := gzip.NewReader(bytes.NewReader(m.Value)) + if err != nil { + return err + } + if m.Value, err = ioutil.ReadAll(reader); err != nil { + return err + } + if err := m.decodeSet(); err != nil { + return err + } + case CompressionSnappy: + if m.Value == nil { + return PacketDecodingError{"Snappy compression specified, but no data to uncompress"} + } + if m.Value, err = snappyDecode(m.Value); err != nil { + return err + } + if err := m.decodeSet(); err != nil { + return err + } + default: + return PacketDecodingError{fmt.Sprintf("invalid compression specified (%d)", m.Codec)} + } + + return pd.pop() +} + +// decodes a message set from a previousy encoded bulk-message +func (m *Message) decodeSet() (err error) { + pd := realDecoder{raw: m.Value} + m.Set = &MessageSet{} + return m.Set.decode(&pd) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/message_set.go b/Godeps/_workspace/src/github.com/Shopify/sarama/message_set.go new file mode 100644 index 0000000..f028784 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/message_set.go @@ -0,0 +1,89 @@ +package sarama + +type MessageBlock struct { + Offset int64 + Msg *Message +} + +// Messages convenience helper which returns either all the +// messages that are wrapped in this block +func (msb *MessageBlock) Messages() []*MessageBlock { + if msb.Msg.Set != nil { + return msb.Msg.Set.Messages + } + return []*MessageBlock{msb} +} + +func (msb *MessageBlock) encode(pe packetEncoder) error { + pe.putInt64(msb.Offset) + pe.push(&lengthField{}) + err := msb.Msg.encode(pe) + if err != nil { + return err + } + return pe.pop() +} + +func (msb *MessageBlock) decode(pd packetDecoder) (err error) { + if msb.Offset, err = pd.getInt64(); err != nil { + return err + } + + if err = pd.push(&lengthField{}); err != nil { + return err + } + + msb.Msg = new(Message) + if err = msb.Msg.decode(pd); err != nil { + return err + } + + if err = pd.pop(); err != nil { + return err + } + + return nil +} + +type MessageSet struct { + PartialTrailingMessage bool // whether the set on the wire contained an incomplete trailing MessageBlock + Messages []*MessageBlock +} + +func (ms *MessageSet) encode(pe packetEncoder) error { + for i := range ms.Messages { + err := ms.Messages[i].encode(pe) + if err != nil { + return err + } + } + return nil +} + +func (ms *MessageSet) decode(pd packetDecoder) (err error) { + ms.Messages = nil + + for pd.remaining() > 0 { + msb := new(MessageBlock) + err = msb.decode(pd) + switch err { + case nil: + ms.Messages = append(ms.Messages, msb) + case ErrInsufficientData: + // As an optimization the server is allowed to return a partial message at the + // end of the message set. Clients should handle this case. So we just ignore such things. + ms.PartialTrailingMessage = true + return nil + default: + return err + } + } + + return nil +} + +func (ms *MessageSet) addMessage(msg *Message) { + block := new(MessageBlock) + block.Msg = msg + ms.Messages = append(ms.Messages, block) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/metadata_request.go b/Godeps/_workspace/src/github.com/Shopify/sarama/metadata_request.go new file mode 100644 index 0000000..130cfd4 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/metadata_request.go @@ -0,0 +1,48 @@ +package sarama + +type MetadataRequest struct { + Topics []string +} + +func (mr *MetadataRequest) encode(pe packetEncoder) error { + err := pe.putArrayLength(len(mr.Topics)) + if err != nil { + return err + } + + for i := range mr.Topics { + err = pe.putString(mr.Topics[i]) + if err != nil { + return err + } + } + return nil +} + +func (mr *MetadataRequest) decode(pd packetDecoder) error { + topicCount, err := pd.getArrayLength() + if err != nil { + return err + } + if topicCount == 0 { + return nil + } + + mr.Topics = make([]string, topicCount) + for i := range mr.Topics { + topic, err := pd.getString() + if err != nil { + return err + } + mr.Topics[i] = topic + } + return nil +} + +func (mr *MetadataRequest) key() int16 { + return 3 +} + +func (mr *MetadataRequest) version() int16 { + return 0 +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/metadata_response.go b/Godeps/_workspace/src/github.com/Shopify/sarama/metadata_response.go new file mode 100644 index 0000000..b82221f --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/metadata_response.go @@ -0,0 +1,227 @@ +package sarama + +type PartitionMetadata struct { + Err KError + ID int32 + Leader int32 + Replicas []int32 + Isr []int32 +} + +func (pm *PartitionMetadata) decode(pd packetDecoder) (err error) { + tmp, err := pd.getInt16() + if err != nil { + return err + } + pm.Err = KError(tmp) + + pm.ID, err = pd.getInt32() + if err != nil { + return err + } + + pm.Leader, err = pd.getInt32() + if err != nil { + return err + } + + pm.Replicas, err = pd.getInt32Array() + if err != nil { + return err + } + + pm.Isr, err = pd.getInt32Array() + if err != nil { + return err + } + + return nil +} + +func (pm *PartitionMetadata) encode(pe packetEncoder) (err error) { + pe.putInt16(int16(pm.Err)) + pe.putInt32(pm.ID) + pe.putInt32(pm.Leader) + + err = pe.putInt32Array(pm.Replicas) + if err != nil { + return err + } + + err = pe.putInt32Array(pm.Isr) + if err != nil { + return err + } + + return nil +} + +type TopicMetadata struct { + Err KError + Name string + Partitions []*PartitionMetadata +} + +func (tm *TopicMetadata) decode(pd packetDecoder) (err error) { + tmp, err := pd.getInt16() + if err != nil { + return err + } + tm.Err = KError(tmp) + + tm.Name, err = pd.getString() + if err != nil { + return err + } + + n, err := pd.getArrayLength() + if err != nil { + return err + } + tm.Partitions = make([]*PartitionMetadata, n) + for i := 0; i < n; i++ { + tm.Partitions[i] = new(PartitionMetadata) + err = tm.Partitions[i].decode(pd) + if err != nil { + return err + } + } + + return nil +} + +func (tm *TopicMetadata) encode(pe packetEncoder) (err error) { + pe.putInt16(int16(tm.Err)) + + err = pe.putString(tm.Name) + if err != nil { + return err + } + + err = pe.putArrayLength(len(tm.Partitions)) + if err != nil { + return err + } + + for _, pm := range tm.Partitions { + err = pm.encode(pe) + if err != nil { + return err + } + } + + return nil +} + +type MetadataResponse struct { + Brokers []*Broker + Topics []*TopicMetadata +} + +func (m *MetadataResponse) decode(pd packetDecoder) (err error) { + n, err := pd.getArrayLength() + if err != nil { + return err + } + + m.Brokers = make([]*Broker, n) + for i := 0; i < n; i++ { + m.Brokers[i] = new(Broker) + err = m.Brokers[i].decode(pd) + if err != nil { + return err + } + } + + n, err = pd.getArrayLength() + if err != nil { + return err + } + + m.Topics = make([]*TopicMetadata, n) + for i := 0; i < n; i++ { + m.Topics[i] = new(TopicMetadata) + err = m.Topics[i].decode(pd) + if err != nil { + return err + } + } + + return nil +} + +func (m *MetadataResponse) encode(pe packetEncoder) error { + err := pe.putArrayLength(len(m.Brokers)) + if err != nil { + return err + } + for _, broker := range m.Brokers { + err = broker.encode(pe) + if err != nil { + return err + } + } + + err = pe.putArrayLength(len(m.Topics)) + if err != nil { + return err + } + for _, tm := range m.Topics { + err = tm.encode(pe) + if err != nil { + return err + } + } + + return nil +} + +// testing API + +func (m *MetadataResponse) AddBroker(addr string, id int32) { + m.Brokers = append(m.Brokers, &Broker{id: id, addr: addr}) +} + +func (m *MetadataResponse) AddTopic(topic string, err KError) *TopicMetadata { + var tmatch *TopicMetadata + + for _, tm := range m.Topics { + if tm.Name == topic { + tmatch = tm + goto foundTopic + } + } + + tmatch = new(TopicMetadata) + tmatch.Name = topic + m.Topics = append(m.Topics, tmatch) + +foundTopic: + + tmatch.Err = err + return tmatch +} + +func (m *MetadataResponse) AddTopicPartition(topic string, partition, brokerID int32, replicas, isr []int32, err KError) { + tmatch := m.AddTopic(topic, ErrNoError) + var pmatch *PartitionMetadata + + for _, pm := range tmatch.Partitions { + if pm.ID == partition { + pmatch = pm + goto foundPartition + } + } + + pmatch = new(PartitionMetadata) + pmatch.ID = partition + tmatch.Partitions = append(tmatch.Partitions, pmatch) + +foundPartition: + + pmatch.Leader = brokerID + pmatch.Replicas = replicas + pmatch.Isr = isr + pmatch.Err = err + +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/mocks/README.md b/Godeps/_workspace/src/github.com/Shopify/sarama/mocks/README.md new file mode 100644 index 0000000..55a6c2e --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/mocks/README.md @@ -0,0 +1,13 @@ +# sarama/mocks + +The `mocks` subpackage includes mock implementations that implement the interfaces of the major sarama types. +You can use them to test your sarama applications using dependency injection. + +The following mock objects are available: + +- [Consumer](https://godoc.org/github.com/Shopify/sarama/mocks#Consumer), which will create [PartitionConsumer](https://godoc.org/github.com/Shopify/sarama/mocks#PartitionConsumer) mocks. +- [AsyncProducer](https://godoc.org/github.com/Shopify/sarama/mocks#AsyncProducer) +- [SyncProducer](https://godoc.org/github.com/Shopify/sarama/mocks#SyncProducer) + +The mocks allow you to set expectations on them. When you close the mocks, the expectations will be verified, +and the results will be reported to the `*testing.T` object you provided when creating the mock. diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/mocks/async_producer.go b/Godeps/_workspace/src/github.com/Shopify/sarama/mocks/async_producer.go new file mode 100644 index 0000000..6ccf1f1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/mocks/async_producer.go @@ -0,0 +1,142 @@ +package mocks + +import ( + "sync" + + "github.com/Shopify/sarama" +) + +// AsyncProducer implements sarama's Producer interface for testing purposes. +// Before you can send messages to it's Input channel, you have to set expectations +// so it knows how to handle the input. This way you can easily test success and +// failure scenarios. +type AsyncProducer struct { + l sync.Mutex + t ErrorReporter + expectations []*producerExpectation + closed chan struct{} + input chan *sarama.ProducerMessage + successes chan *sarama.ProducerMessage + errors chan *sarama.ProducerError + lastOffset int64 +} + +// NewAsyncProducer instantiates a new Producer mock. The t argument should +// be the *testing.T instance of your test method. An error will be written to it if +// an expectation is violated. The config argument is used to determine whether it +// should ack successes on the Successes channel. +func NewAsyncProducer(t ErrorReporter, config *sarama.Config) *AsyncProducer { + if config == nil { + config = sarama.NewConfig() + } + mp := &AsyncProducer{ + t: t, + closed: make(chan struct{}, 0), + expectations: make([]*producerExpectation, 0), + input: make(chan *sarama.ProducerMessage, config.ChannelBufferSize), + successes: make(chan *sarama.ProducerMessage, config.ChannelBufferSize), + errors: make(chan *sarama.ProducerError, config.ChannelBufferSize), + } + + go func() { + defer func() { + close(mp.successes) + close(mp.errors) + }() + + for msg := range mp.input { + mp.l.Lock() + if mp.expectations == nil || len(mp.expectations) == 0 { + mp.expectations = nil + mp.t.Errorf("No more expectation set on this mock producer to handle the input message.") + } else { + expectation := mp.expectations[0] + mp.expectations = mp.expectations[1:] + if expectation.Result == errProduceSuccess { + mp.lastOffset++ + if config.Producer.Return.Successes { + msg.Offset = mp.lastOffset + mp.successes <- msg + } + } else { + if config.Producer.Return.Errors { + mp.errors <- &sarama.ProducerError{Err: expectation.Result, Msg: msg} + } + } + } + mp.l.Unlock() + } + + mp.l.Lock() + if len(mp.expectations) > 0 { + mp.t.Errorf("Expected to exhaust all expectations, but %d are left.", len(mp.expectations)) + } + mp.l.Unlock() + + close(mp.closed) + }() + + return mp +} + +//////////////////////////////////////////////// +// Implement Producer interface +//////////////////////////////////////////////// + +// AsyncClose corresponds with the AsyncClose method of sarama's Producer implementation. +// By closing a mock producer, you also tell it that no more input will be provided, so it will +// write an error to the test state if there's any remaining expectations. +func (mp *AsyncProducer) AsyncClose() { + close(mp.input) +} + +// Close corresponds with the Close method of sarama's Producer implementation. +// By closing a mock producer, you also tell it that no more input will be provided, so it will +// write an error to the test state if there's any remaining expectations. +func (mp *AsyncProducer) Close() error { + mp.AsyncClose() + <-mp.closed + return nil +} + +// Input corresponds with the Input method of sarama's Producer implementation. +// You have to set expectations on the mock producer before writing messages to the Input +// channel, so it knows how to handle them. If there is no more remaining expectations and +// a messages is written to the Input channel, the mock producer will write an error to the test +// state object. +func (mp *AsyncProducer) Input() chan<- *sarama.ProducerMessage { + return mp.input +} + +// Successes corresponds with the Successes method of sarama's Producer implementation. +func (mp *AsyncProducer) Successes() <-chan *sarama.ProducerMessage { + return mp.successes +} + +// Errors corresponds with the Errors method of sarama's Producer implementation. +func (mp *AsyncProducer) Errors() <-chan *sarama.ProducerError { + return mp.errors +} + +//////////////////////////////////////////////// +// Setting expectations +//////////////////////////////////////////////// + +// ExpectInputAndSucceed sets an expectation on the mock producer that a message will be provided +// on the input channel. The mock producer will handle the message as if it is produced successfully, +// i.e. it will make it available on the Successes channel if the Producer.Return.Successes setting +// is set to true. +func (mp *AsyncProducer) ExpectInputAndSucceed() { + mp.l.Lock() + defer mp.l.Unlock() + mp.expectations = append(mp.expectations, &producerExpectation{Result: errProduceSuccess}) +} + +// ExpectInputAndFail sets an expectation on the mock producer that a message will be provided +// on the input channel. The mock producer will handle the message as if it failed to produce +// successfully. This means it will make a ProducerError available on the Errors channel. +func (mp *AsyncProducer) ExpectInputAndFail(err error) { + mp.l.Lock() + defer mp.l.Unlock() + mp.expectations = append(mp.expectations, &producerExpectation{Result: err}) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/mocks/consumer.go b/Godeps/_workspace/src/github.com/Shopify/sarama/mocks/consumer.go new file mode 100644 index 0000000..a2c394e --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/mocks/consumer.go @@ -0,0 +1,299 @@ +package mocks + +import ( + "sync" + "sync/atomic" + + "github.com/Shopify/sarama" +) + +// Consumer implements sarama's Consumer interface for testing purposes. +// Before you can start consuming from this consumer, you have to register +// topic/partitions using ExpectConsumePartition, and set expectations on them. +type Consumer struct { + l sync.Mutex + t ErrorReporter + config *sarama.Config + partitionConsumers map[string]map[int32]*PartitionConsumer + metadata map[string][]int32 +} + +// NewConsumer returns a new mock Consumer instance. The t argument should +// be the *testing.T instance of your test method. An error will be written to it if +// an expectation is violated. The config argument is currently unused and can be set to nil. +func NewConsumer(t ErrorReporter, config *sarama.Config) *Consumer { + if config == nil { + config = sarama.NewConfig() + } + + c := &Consumer{ + t: t, + config: config, + partitionConsumers: make(map[string]map[int32]*PartitionConsumer), + } + return c +} + +/////////////////////////////////////////////////// +// Consumer interface implementation +/////////////////////////////////////////////////// + +// ConsumePartition implements the ConsumePartition method from the sarama.Consumer interface. +// Before you can start consuming a partition, you have to set expectations on it using +// ExpectConsumePartition. You can only consume a partition once per consumer. +func (c *Consumer) ConsumePartition(topic string, partition int32, offset int64) (sarama.PartitionConsumer, error) { + c.l.Lock() + defer c.l.Unlock() + + if c.partitionConsumers[topic] == nil || c.partitionConsumers[topic][partition] == nil { + c.t.Errorf("No expectations set for %s/%d", topic, partition) + return nil, errOutOfExpectations + } + + pc := c.partitionConsumers[topic][partition] + if pc.consumed { + return nil, sarama.ConfigurationError("The topic/partition is already being consumed") + } + + if pc.offset != AnyOffset && pc.offset != offset { + c.t.Errorf("Unexpected offset when calling ConsumePartition for %s/%d. Expected %d, got %d.", topic, partition, pc.offset, offset) + } + + pc.consumed = true + return pc, nil +} + +// Topics returns a list of topics, as registered with SetMetadata +func (c *Consumer) Topics() ([]string, error) { + c.l.Lock() + defer c.l.Unlock() + + if c.metadata == nil { + c.t.Errorf("Unexpected call to Topics. Initialize the mock's topic metadata with SetMetadata.") + return nil, sarama.ErrOutOfBrokers + } + + var result []string + for topic := range c.metadata { + result = append(result, topic) + } + return result, nil +} + +// Partitions returns the list of parititons for the given topic, as registered with SetMetadata +func (c *Consumer) Partitions(topic string) ([]int32, error) { + c.l.Lock() + defer c.l.Unlock() + + if c.metadata == nil { + c.t.Errorf("Unexpected call to Partitions. Initialize the mock's topic metadata with SetMetadata.") + return nil, sarama.ErrOutOfBrokers + } + if c.metadata[topic] == nil { + return nil, sarama.ErrUnknownTopicOrPartition + } + + return c.metadata[topic], nil +} + +// Close implements the Close method from the sarama.Consumer interface. It will close +// all registered PartitionConsumer instances. +func (c *Consumer) Close() error { + c.l.Lock() + defer c.l.Unlock() + + for _, partitions := range c.partitionConsumers { + for _, partitionConsumer := range partitions { + _ = partitionConsumer.Close() + } + } + + return nil +} + +/////////////////////////////////////////////////// +// Expectation API +/////////////////////////////////////////////////// + +// SetTopicMetadata sets the clusters topic/partition metadata, +// which will be returned by Topics() and Partitions(). +func (c *Consumer) SetTopicMetadata(metadata map[string][]int32) { + c.l.Lock() + defer c.l.Unlock() + + c.metadata = metadata +} + +// ExpectConsumePartition will register a topic/partition, so you can set expectations on it. +// The registered PartitionConsumer will be returned, so you can set expectations +// on it using method chanining. Once a topic/partition is registered, you are +// expected to start consuming it using ConsumePartition. If that doesn't happen, +// an error will be written to the error reporter once the mock consumer is closed. It will +// also expect that the +func (c *Consumer) ExpectConsumePartition(topic string, partition int32, offset int64) *PartitionConsumer { + c.l.Lock() + defer c.l.Unlock() + + if c.partitionConsumers[topic] == nil { + c.partitionConsumers[topic] = make(map[int32]*PartitionConsumer) + } + + if c.partitionConsumers[topic][partition] == nil { + c.partitionConsumers[topic][partition] = &PartitionConsumer{ + t: c.t, + topic: topic, + partition: partition, + offset: offset, + messages: make(chan *sarama.ConsumerMessage, c.config.ChannelBufferSize), + errors: make(chan *sarama.ConsumerError, c.config.ChannelBufferSize), + } + } + + return c.partitionConsumers[topic][partition] +} + +/////////////////////////////////////////////////// +// PartitionConsumer mock type +/////////////////////////////////////////////////// + +// PartitionConsumer implements sarama's PartitionConsumer interface for testing purposes. +// It is returned by the mock Consumers ConsumePartitionMethod, but only if it is +// registered first using the Consumer's ExpectConsumePartition method. Before consuming the +// Errors and Messages channel, you should specify what values will be provided on these +// channels using YieldMessage and YieldError. +type PartitionConsumer struct { + l sync.Mutex + t ErrorReporter + topic string + partition int32 + offset int64 + messages chan *sarama.ConsumerMessage + errors chan *sarama.ConsumerError + singleClose sync.Once + consumed bool + errorsShouldBeDrained bool + messagesShouldBeDrained bool + highWaterMarkOffset int64 +} + +/////////////////////////////////////////////////// +// PartitionConsumer interface implementation +/////////////////////////////////////////////////// + +// AsyncClose implements the AsyncClose method from the sarama.PartitionConsumer interface. +func (pc *PartitionConsumer) AsyncClose() { + pc.singleClose.Do(func() { + close(pc.messages) + close(pc.errors) + }) +} + +// Close implements the Close method from the sarama.PartitionConsumer interface. It will +// verify whether the partition consumer was actually started. +func (pc *PartitionConsumer) Close() error { + if !pc.consumed { + pc.t.Errorf("Expectations set on %s/%d, but no partition consumer was started.", pc.topic, pc.partition) + return errPartitionConsumerNotStarted + } + + if pc.errorsShouldBeDrained && len(pc.errors) > 0 { + pc.t.Errorf("Expected the errors channel for %s/%d to be drained on close, but found %d errors.", pc.topic, pc.partition, len(pc.errors)) + } + + if pc.messagesShouldBeDrained && len(pc.messages) > 0 { + pc.t.Errorf("Expected the messages channel for %s/%d to be drained on close, but found %d messages.", pc.topic, pc.partition, len(pc.messages)) + } + + pc.AsyncClose() + + var ( + closeErr error + wg sync.WaitGroup + ) + + wg.Add(1) + go func() { + defer wg.Done() + + var errs = make(sarama.ConsumerErrors, 0) + for err := range pc.errors { + errs = append(errs, err) + } + + if len(errs) > 0 { + closeErr = errs + } + }() + + wg.Add(1) + go func() { + defer wg.Done() + for _ = range pc.messages { + // drain + } + }() + + wg.Wait() + return closeErr +} + +// Errors implements the Errors method from the sarama.PartitionConsumer interface. +func (pc *PartitionConsumer) Errors() <-chan *sarama.ConsumerError { + return pc.errors +} + +// Messages implements the Messages method from the sarama.PartitionConsumer interface. +func (pc *PartitionConsumer) Messages() <-chan *sarama.ConsumerMessage { + return pc.messages +} + +func (pc *PartitionConsumer) HighWaterMarkOffset() int64 { + return atomic.LoadInt64(&pc.highWaterMarkOffset) + 1 +} + +/////////////////////////////////////////////////// +// Expectation API +/////////////////////////////////////////////////// + +// YieldMessage will yield a messages Messages channel of this partition consumer +// when it is consumed. By default, the mock consumer will not verify whether this +// message was consumed from the Messages channel, because there are legitimate +// reasons forthis not to happen. ou can call ExpectMessagesDrainedOnClose so it will +// verify that the channel is empty on close. +func (pc *PartitionConsumer) YieldMessage(msg *sarama.ConsumerMessage) { + pc.l.Lock() + defer pc.l.Unlock() + + msg.Topic = pc.topic + msg.Partition = pc.partition + msg.Offset = atomic.AddInt64(&pc.highWaterMarkOffset, 1) + + pc.messages <- msg +} + +// YieldError will yield an error on the Errors channel of this partition consumer +// when it is consumed. By default, the mock consumer will not verify whether this error was +// consumed from the Errors channel, because there are legitimate reasons for this +// not to happen. You can call ExpectErrorsDrainedOnClose so it will verify that +// the channel is empty on close. +func (pc *PartitionConsumer) YieldError(err error) { + pc.errors <- &sarama.ConsumerError{ + Topic: pc.topic, + Partition: pc.partition, + Err: err, + } +} + +// ExpectMessagesDrainedOnClose sets an expectation on the partition consumer +// that the messages channel will be fully drained when Close is called. If this +// expectation is not met, an error is reported to the error reporter. +func (pc *PartitionConsumer) ExpectMessagesDrainedOnClose() { + pc.messagesShouldBeDrained = true +} + +// ExpectErrorsDrainedOnClose sets an expectation on the partition consumer +// that the errors channel will be fully drained when Close is called. If this +// expectation is not met, an error is reported to the error reporter. +func (pc *PartitionConsumer) ExpectErrorsDrainedOnClose() { + pc.errorsShouldBeDrained = true +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/mocks/mocks.go b/Godeps/_workspace/src/github.com/Shopify/sarama/mocks/mocks.go new file mode 100644 index 0000000..96b79bc --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/mocks/mocks.go @@ -0,0 +1,43 @@ +/* +Package mocks provides mocks that can be used for testing applications +that use Sarama. The mock types provided by this package implement the +interfaces Sarama exports, so you can use them for dependency injection +in your tests. + +All mock instances require you to set expectations on them before you +can use them. It will determine how the mock will behave. If an +expectation is not met, it will make your test fail. + +NOTE: this package currently does not fall under the API stability +guarantee of Sarama as it is still considered experimental. +*/ +package mocks + +import ( + "errors" + + "github.com/Shopify/sarama" +) + +// ErrorReporter is a simple interface that includes the testing.T methods we use to report +// expectation violations when using the mock objects. +type ErrorReporter interface { + Errorf(string, ...interface{}) +} + +var ( + errProduceSuccess error = nil + errOutOfExpectations = errors.New("No more expectations set on mock") + errPartitionConsumerNotStarted = errors.New("The partition consumer was never started") +) + +const AnyOffset int64 = -1000 + +type producerExpectation struct { + Result error +} + +type consumerExpectation struct { + Err error + Msg *sarama.ConsumerMessage +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/mocks/sync_producer.go b/Godeps/_workspace/src/github.com/Shopify/sarama/mocks/sync_producer.go new file mode 100644 index 0000000..fa86b24 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/mocks/sync_producer.go @@ -0,0 +1,94 @@ +package mocks + +import ( + "sync" + + "github.com/Shopify/sarama" +) + +// SyncProducer implements sarama's SyncProducer interface for testing purposes. +// Before you can use it, you have to set expectations on the mock SyncProducer +// to tell it how to handle calls to SendMessage, so you can easily test success +// and failure scenarios. +type SyncProducer struct { + l sync.Mutex + t ErrorReporter + expectations []*producerExpectation + lastOffset int64 +} + +// NewSyncProducer instantiates a new SyncProducer mock. The t argument should +// be the *testing.T instance of your test method. An error will be written to it if +// an expectation is violated. The config argument is currently unused, but is +// maintained to be compatible with the async Producer. +func NewSyncProducer(t ErrorReporter, config *sarama.Config) *SyncProducer { + return &SyncProducer{ + t: t, + expectations: make([]*producerExpectation, 0), + } +} + +//////////////////////////////////////////////// +// Implement SyncProducer interface +//////////////////////////////////////////////// + +// SendMessage corresponds with the SendMessage method of sarama's SyncProducer implementation. +// You have to set expectations on the mock producer before calling SendMessage, so it knows +// how to handle them. If there is no more remaining expectations when SendMessage is called, +// the mock producer will write an error to the test state object. +func (sp *SyncProducer) SendMessage(msg *sarama.ProducerMessage) (partition int32, offset int64, err error) { + sp.l.Lock() + defer sp.l.Unlock() + + if len(sp.expectations) > 0 { + expectation := sp.expectations[0] + sp.expectations = sp.expectations[1:] + + if expectation.Result == errProduceSuccess { + sp.lastOffset++ + msg.Offset = sp.lastOffset + return 0, msg.Offset, nil + } else { + return -1, -1, expectation.Result + } + } else { + sp.t.Errorf("No more expectation set on this mock producer to handle the input message.") + return -1, -1, errOutOfExpectations + } +} + +// Close corresponds with the Close method of sarama's SyncProducer implementation. +// By closing a mock syncproducer, you also tell it that no more SendMessage calls will follow, +// so it will write an error to the test state if there's any remaining expectations. +func (sp *SyncProducer) Close() error { + sp.l.Lock() + defer sp.l.Unlock() + + if len(sp.expectations) > 0 { + sp.t.Errorf("Expected to exhaust all expectations, but %d are left.", len(sp.expectations)) + } + + return nil +} + +//////////////////////////////////////////////// +// Setting expectations +//////////////////////////////////////////////// + +// ExpectSendMessageAndSucceed sets an expectation on the mock producer that SendMessage will be +// called. The mock producer will handle the message as if it produced successfully, i.e. by +// returning a valid partition, and offset, and a nil error. +func (sp *SyncProducer) ExpectSendMessageAndSucceed() { + sp.l.Lock() + defer sp.l.Unlock() + sp.expectations = append(sp.expectations, &producerExpectation{Result: errProduceSuccess}) +} + +// ExpectSendMessageAndFail sets an expectation on the mock producer that SendMessage will be +// called. The mock producer will handle the message as if it failed to produce +// successfully, i.e. by returning the provided error. +func (sp *SyncProducer) ExpectSendMessageAndFail(err error) { + sp.l.Lock() + defer sp.l.Unlock() + sp.expectations = append(sp.expectations, &producerExpectation{Result: err}) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/offset_commit_request.go b/Godeps/_workspace/src/github.com/Shopify/sarama/offset_commit_request.go new file mode 100644 index 0000000..ba4ac76 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/offset_commit_request.go @@ -0,0 +1,172 @@ +package sarama + +// ReceiveTime is a special value for the timestamp field of Offset Commit Requests which +// tells the broker to set the timestamp to the time at which the request was received. +// The timestamp is only used if message version 1 is used, which requires kafka 0.8.2. +const ReceiveTime int64 = -1 + +type offsetCommitRequestBlock struct { + offset int64 + timestamp int64 + metadata string +} + +func (r *offsetCommitRequestBlock) encode(pe packetEncoder, version int16) error { + pe.putInt64(r.offset) + if version == 1 { + pe.putInt64(r.timestamp) + } else if r.timestamp != 0 { + Logger.Println("Non-zero timestamp specified for OffsetCommitRequest not v1, it will be ignored") + } + + return pe.putString(r.metadata) +} + +func (r *offsetCommitRequestBlock) decode(pd packetDecoder, version int16) (err error) { + if r.offset, err = pd.getInt64(); err != nil { + return err + } + if version == 1 { + if r.timestamp, err = pd.getInt64(); err != nil { + return err + } + } + r.metadata, err = pd.getString() + return err +} + +type OffsetCommitRequest struct { + ConsumerGroup string + ConsumerGroupGeneration int32 // v1 or later + ConsumerID string // v1 or later + RetentionTime int64 // v2 or later + + // Version can be: + // - 0 (kafka 0.8.1 and later) + // - 1 (kafka 0.8.2 and later) + // - 2 (kafka 0.8.3 and later) + Version int16 + blocks map[string]map[int32]*offsetCommitRequestBlock +} + +func (r *OffsetCommitRequest) encode(pe packetEncoder) error { + if r.Version < 0 || r.Version > 2 { + return PacketEncodingError{"invalid or unsupported OffsetCommitRequest version field"} + } + + if err := pe.putString(r.ConsumerGroup); err != nil { + return err + } + + if r.Version >= 1 { + pe.putInt32(r.ConsumerGroupGeneration) + if err := pe.putString(r.ConsumerID); err != nil { + return err + } + } else { + if r.ConsumerGroupGeneration != 0 { + Logger.Println("Non-zero ConsumerGroupGeneration specified for OffsetCommitRequest v0, it will be ignored") + } + if r.ConsumerID != "" { + Logger.Println("Non-empty ConsumerID specified for OffsetCommitRequest v0, it will be ignored") + } + } + + if r.Version >= 2 { + pe.putInt64(r.RetentionTime) + } else if r.RetentionTime != 0 { + Logger.Println("Non-zero RetentionTime specified for OffsetCommitRequest version <2, it will be ignored") + } + + if err := pe.putArrayLength(len(r.blocks)); err != nil { + return err + } + for topic, partitions := range r.blocks { + if err := pe.putString(topic); err != nil { + return err + } + if err := pe.putArrayLength(len(partitions)); err != nil { + return err + } + for partition, block := range partitions { + pe.putInt32(partition) + if err := block.encode(pe, r.Version); err != nil { + return err + } + } + } + return nil +} + +func (r *OffsetCommitRequest) decode(pd packetDecoder) (err error) { + if r.ConsumerGroup, err = pd.getString(); err != nil { + return err + } + + if r.Version >= 1 { + if r.ConsumerGroupGeneration, err = pd.getInt32(); err != nil { + return err + } + if r.ConsumerID, err = pd.getString(); err != nil { + return err + } + } + + if r.Version >= 2 { + if r.RetentionTime, err = pd.getInt64(); err != nil { + return err + } + } + + topicCount, err := pd.getArrayLength() + if err != nil { + return err + } + if topicCount == 0 { + return nil + } + r.blocks = make(map[string]map[int32]*offsetCommitRequestBlock) + for i := 0; i < topicCount; i++ { + topic, err := pd.getString() + if err != nil { + return err + } + partitionCount, err := pd.getArrayLength() + if err != nil { + return err + } + r.blocks[topic] = make(map[int32]*offsetCommitRequestBlock) + for j := 0; j < partitionCount; j++ { + partition, err := pd.getInt32() + if err != nil { + return err + } + block := &offsetCommitRequestBlock{} + if err := block.decode(pd, r.Version); err != nil { + return err + } + r.blocks[topic][partition] = block + } + } + return nil +} + +func (r *OffsetCommitRequest) key() int16 { + return 8 +} + +func (r *OffsetCommitRequest) version() int16 { + return r.Version +} + +func (r *OffsetCommitRequest) AddBlock(topic string, partitionID int32, offset int64, timestamp int64, metadata string) { + if r.blocks == nil { + r.blocks = make(map[string]map[int32]*offsetCommitRequestBlock) + } + + if r.blocks[topic] == nil { + r.blocks[topic] = make(map[int32]*offsetCommitRequestBlock) + } + + r.blocks[topic][partitionID] = &offsetCommitRequestBlock{offset, timestamp, metadata} +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/offset_commit_response.go b/Godeps/_workspace/src/github.com/Shopify/sarama/offset_commit_response.go new file mode 100644 index 0000000..573a3b6 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/offset_commit_response.go @@ -0,0 +1,73 @@ +package sarama + +type OffsetCommitResponse struct { + Errors map[string]map[int32]KError +} + +func (r *OffsetCommitResponse) AddError(topic string, partition int32, kerror KError) { + if r.Errors == nil { + r.Errors = make(map[string]map[int32]KError) + } + partitions := r.Errors[topic] + if partitions == nil { + partitions = make(map[int32]KError) + r.Errors[topic] = partitions + } + partitions[partition] = kerror +} + +func (r *OffsetCommitResponse) encode(pe packetEncoder) error { + if err := pe.putArrayLength(len(r.Errors)); err != nil { + return err + } + for topic, partitions := range r.Errors { + if err := pe.putString(topic); err != nil { + return err + } + if err := pe.putArrayLength(len(partitions)); err != nil { + return err + } + for partition, kerror := range partitions { + pe.putInt32(partition) + pe.putInt16(int16(kerror)) + } + } + return nil +} + +func (r *OffsetCommitResponse) decode(pd packetDecoder) (err error) { + numTopics, err := pd.getArrayLength() + if err != nil || numTopics == 0 { + return err + } + + r.Errors = make(map[string]map[int32]KError, numTopics) + for i := 0; i < numTopics; i++ { + name, err := pd.getString() + if err != nil { + return err + } + + numErrors, err := pd.getArrayLength() + if err != nil { + return err + } + + r.Errors[name] = make(map[int32]KError, numErrors) + + for j := 0; j < numErrors; j++ { + id, err := pd.getInt32() + if err != nil { + return err + } + + tmp, err := pd.getInt16() + if err != nil { + return err + } + r.Errors[name][id] = KError(tmp) + } + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/offset_fetch_request.go b/Godeps/_workspace/src/github.com/Shopify/sarama/offset_fetch_request.go new file mode 100644 index 0000000..30bbbbb --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/offset_fetch_request.go @@ -0,0 +1,71 @@ +package sarama + +type OffsetFetchRequest struct { + ConsumerGroup string + Version int16 + partitions map[string][]int32 +} + +func (r *OffsetFetchRequest) encode(pe packetEncoder) (err error) { + if r.Version < 0 || r.Version > 1 { + return PacketEncodingError{"invalid or unsupported OffsetFetchRequest version field"} + } + + if err = pe.putString(r.ConsumerGroup); err != nil { + return err + } + if err = pe.putArrayLength(len(r.partitions)); err != nil { + return err + } + for topic, partitions := range r.partitions { + if err = pe.putString(topic); err != nil { + return err + } + if err = pe.putInt32Array(partitions); err != nil { + return err + } + } + return nil +} + +func (r *OffsetFetchRequest) decode(pd packetDecoder) (err error) { + if r.ConsumerGroup, err = pd.getString(); err != nil { + return err + } + partitionCount, err := pd.getArrayLength() + if err != nil { + return err + } + if partitionCount == 0 { + return nil + } + r.partitions = make(map[string][]int32) + for i := 0; i < partitionCount; i++ { + topic, err := pd.getString() + if err != nil { + return err + } + partitions, err := pd.getInt32Array() + if err != nil { + return err + } + r.partitions[topic] = partitions + } + return nil +} + +func (r *OffsetFetchRequest) key() int16 { + return 9 +} + +func (r *OffsetFetchRequest) version() int16 { + return r.Version +} + +func (r *OffsetFetchRequest) AddPartition(topic string, partitionID int32) { + if r.partitions == nil { + r.partitions = make(map[string][]int32) + } + + r.partitions[topic] = append(r.partitions[topic], partitionID) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/offset_fetch_response.go b/Godeps/_workspace/src/github.com/Shopify/sarama/offset_fetch_response.go new file mode 100644 index 0000000..93078c3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/offset_fetch_response.go @@ -0,0 +1,131 @@ +package sarama + +type OffsetFetchResponseBlock struct { + Offset int64 + Metadata string + Err KError +} + +func (r *OffsetFetchResponseBlock) decode(pd packetDecoder) (err error) { + r.Offset, err = pd.getInt64() + if err != nil { + return err + } + + r.Metadata, err = pd.getString() + if err != nil { + return err + } + + tmp, err := pd.getInt16() + if err != nil { + return err + } + r.Err = KError(tmp) + + return nil +} + +func (r *OffsetFetchResponseBlock) encode(pe packetEncoder) (err error) { + pe.putInt64(r.Offset) + + err = pe.putString(r.Metadata) + if err != nil { + return err + } + + pe.putInt16(int16(r.Err)) + + return nil +} + +type OffsetFetchResponse struct { + Blocks map[string]map[int32]*OffsetFetchResponseBlock +} + +func (r *OffsetFetchResponse) encode(pe packetEncoder) error { + if err := pe.putArrayLength(len(r.Blocks)); err != nil { + return err + } + for topic, partitions := range r.Blocks { + if err := pe.putString(topic); err != nil { + return err + } + if err := pe.putArrayLength(len(partitions)); err != nil { + return err + } + for partition, block := range partitions { + pe.putInt32(partition) + if err := block.encode(pe); err != nil { + return err + } + } + } + return nil +} + +func (r *OffsetFetchResponse) decode(pd packetDecoder) (err error) { + numTopics, err := pd.getArrayLength() + if err != nil || numTopics == 0 { + return err + } + + r.Blocks = make(map[string]map[int32]*OffsetFetchResponseBlock, numTopics) + for i := 0; i < numTopics; i++ { + name, err := pd.getString() + if err != nil { + return err + } + + numBlocks, err := pd.getArrayLength() + if err != nil { + return err + } + + if numBlocks == 0 { + r.Blocks[name] = nil + continue + } + r.Blocks[name] = make(map[int32]*OffsetFetchResponseBlock, numBlocks) + + for j := 0; j < numBlocks; j++ { + id, err := pd.getInt32() + if err != nil { + return err + } + + block := new(OffsetFetchResponseBlock) + err = block.decode(pd) + if err != nil { + return err + } + r.Blocks[name][id] = block + } + } + + return nil +} + +func (r *OffsetFetchResponse) GetBlock(topic string, partition int32) *OffsetFetchResponseBlock { + if r.Blocks == nil { + return nil + } + + if r.Blocks[topic] == nil { + return nil + } + + return r.Blocks[topic][partition] +} + +func (r *OffsetFetchResponse) AddBlock(topic string, partition int32, block *OffsetFetchResponseBlock) { + if r.Blocks == nil { + r.Blocks = make(map[string]map[int32]*OffsetFetchResponseBlock) + } + partitions := r.Blocks[topic] + if partitions == nil { + partitions = make(map[int32]*OffsetFetchResponseBlock) + r.Blocks[topic] = partitions + } + partitions[partition] = block +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/offset_manager.go b/Godeps/_workspace/src/github.com/Shopify/sarama/offset_manager.go new file mode 100644 index 0000000..880d495 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/offset_manager.go @@ -0,0 +1,515 @@ +package sarama + +import ( + "sync" + "time" +) + +// Offset Manager + +// OffsetManager uses Kafka to store and fetch consumed partition offsets. +type OffsetManager interface { + // ManagePartition creates a PartitionOffsetManager on the given topic/partition. + // It will return an error if this OffsetManager is already managing the given + // topic/partition. + ManagePartition(topic string, partition int32) (PartitionOffsetManager, error) + + // Close stops the OffsetManager from managing offsets. It is required to call + // this function before an OffsetManager object passes out of scope, as it + // will otherwise leak memory. You must call this after all the + // PartitionOffsetManagers are closed. + Close() error +} + +type offsetManager struct { + client Client + conf *Config + group string + + lock sync.Mutex + poms map[string]map[int32]*partitionOffsetManager + boms map[*Broker]*brokerOffsetManager +} + +// NewOffsetManagerFromClient creates a new OffsetManager from the given client. +// It is still necessary to call Close() on the underlying client when finished with the partition manager. +func NewOffsetManagerFromClient(group string, client Client) (OffsetManager, error) { + // Check that we are not dealing with a closed Client before processing any other arguments + if client.Closed() { + return nil, ErrClosedClient + } + + om := &offsetManager{ + client: client, + conf: client.Config(), + group: group, + poms: make(map[string]map[int32]*partitionOffsetManager), + boms: make(map[*Broker]*brokerOffsetManager), + } + + return om, nil +} + +func (om *offsetManager) ManagePartition(topic string, partition int32) (PartitionOffsetManager, error) { + pom, err := om.newPartitionOffsetManager(topic, partition) + if err != nil { + return nil, err + } + + om.lock.Lock() + defer om.lock.Unlock() + + topicManagers := om.poms[topic] + if topicManagers == nil { + topicManagers = make(map[int32]*partitionOffsetManager) + om.poms[topic] = topicManagers + } + + if topicManagers[partition] != nil { + return nil, ConfigurationError("That topic/partition is already being managed") + } + + topicManagers[partition] = pom + return pom, nil +} + +func (om *offsetManager) Close() error { + return nil +} + +func (om *offsetManager) refBrokerOffsetManager(broker *Broker) *brokerOffsetManager { + om.lock.Lock() + defer om.lock.Unlock() + + bom := om.boms[broker] + if bom == nil { + bom = om.newBrokerOffsetManager(broker) + om.boms[broker] = bom + } + + bom.refs++ + + return bom +} + +func (om *offsetManager) unrefBrokerOffsetManager(bom *brokerOffsetManager) { + om.lock.Lock() + defer om.lock.Unlock() + + bom.refs-- + + if bom.refs == 0 { + close(bom.updateSubscriptions) + if om.boms[bom.broker] == bom { + delete(om.boms, bom.broker) + } + } +} + +func (om *offsetManager) abandonBroker(bom *brokerOffsetManager) { + om.lock.Lock() + defer om.lock.Unlock() + + delete(om.boms, bom.broker) +} + +func (om *offsetManager) abandonPartitionOffsetManager(pom *partitionOffsetManager) { + om.lock.Lock() + defer om.lock.Unlock() + + delete(om.poms[pom.topic], pom.partition) + if len(om.poms[pom.topic]) == 0 { + delete(om.poms, pom.topic) + } +} + +// Partition Offset Manager + +// PartitionOffsetManager uses Kafka to store and fetch consumed partition offsets. You MUST call Close() +// on a partition offset manager to avoid leaks, it will not be garbage-collected automatically when it passes +// out of scope. +type PartitionOffsetManager interface { + // NextOffset returns the next offset that should be consumed for the managed + // partition, accompanied by metadata which can be used to reconstruct the state + // of the partition consumer when it resumes. NextOffset() will return + // `config.Consumer.Offsets.Initial` and an empty metadata string if no offset + // was committed for this partition yet. + NextOffset() (int64, string) + + // MarkOffset marks the provided offset as processed, alongside a metadata string + // that represents the state of the partition consumer at that point in time. The + // metadata string can be used by another consumer to restore that state, so it + // can resume consumption. + // + // Note: calling MarkOffset does not necessarily commit the offset to the backend + // store immediately for efficiency reasons, and it may never be committed if + // your application crashes. This means that you may end up processing the same + // message twice, and your processing should ideally be idempotent. + MarkOffset(offset int64, metadata string) + + // Errors returns a read channel of errors that occur during offset management, if + // enabled. By default, errors are logged and not returned over this channel. If + // you want to implement any custom error handling, set your config's + // Consumer.Return.Errors setting to true, and read from this channel. + Errors() <-chan *ConsumerError + + // AsyncClose initiates a shutdown of the PartitionOffsetManager. This method will + // return immediately, after which you should wait until the 'errors' channel has + // been drained and closed. It is required to call this function, or Close before + // a consumer object passes out of scope, as it will otherwise leak memory. You + // must call this before calling Close on the underlying client. + AsyncClose() + + // Close stops the PartitionOffsetManager from managing offsets. It is required to + // call this function (or AsyncClose) before a PartitionOffsetManager object + // passes out of scope, as it will otherwise leak memory. You must call this + // before calling Close on the underlying client. + Close() error +} + +type partitionOffsetManager struct { + parent *offsetManager + topic string + partition int32 + + lock sync.Mutex + offset int64 + metadata string + dirty bool + clean chan none + broker *brokerOffsetManager + + errors chan *ConsumerError + rebalance chan none + dying chan none +} + +func (om *offsetManager) newPartitionOffsetManager(topic string, partition int32) (*partitionOffsetManager, error) { + pom := &partitionOffsetManager{ + parent: om, + topic: topic, + partition: partition, + clean: make(chan none), + errors: make(chan *ConsumerError, om.conf.ChannelBufferSize), + rebalance: make(chan none, 1), + dying: make(chan none), + } + + if err := pom.selectBroker(); err != nil { + return nil, err + } + + if err := pom.fetchInitialOffset(om.conf.Metadata.Retry.Max); err != nil { + return nil, err + } + + pom.broker.updateSubscriptions <- pom + + go withRecover(pom.mainLoop) + + return pom, nil +} + +func (pom *partitionOffsetManager) mainLoop() { + for { + select { + case <-pom.rebalance: + if err := pom.selectBroker(); err != nil { + pom.handleError(err) + pom.rebalance <- none{} + } else { + pom.broker.updateSubscriptions <- pom + } + case <-pom.dying: + if pom.broker != nil { + select { + case <-pom.rebalance: + case pom.broker.updateSubscriptions <- pom: + } + pom.parent.unrefBrokerOffsetManager(pom.broker) + } + pom.parent.abandonPartitionOffsetManager(pom) + close(pom.errors) + return + } + } +} + +func (pom *partitionOffsetManager) selectBroker() error { + if pom.broker != nil { + pom.parent.unrefBrokerOffsetManager(pom.broker) + pom.broker = nil + } + + var broker *Broker + var err error + + if err = pom.parent.client.RefreshCoordinator(pom.parent.group); err != nil { + return err + } + + if broker, err = pom.parent.client.Coordinator(pom.parent.group); err != nil { + return err + } + + pom.broker = pom.parent.refBrokerOffsetManager(broker) + return nil +} + +func (pom *partitionOffsetManager) fetchInitialOffset(retries int) error { + request := new(OffsetFetchRequest) + request.Version = 1 + request.ConsumerGroup = pom.parent.group + request.AddPartition(pom.topic, pom.partition) + + response, err := pom.broker.broker.FetchOffset(request) + if err != nil { + return err + } + + block := response.GetBlock(pom.topic, pom.partition) + if block == nil { + return ErrIncompleteResponse + } + + switch block.Err { + case ErrNoError: + pom.offset = block.Offset + pom.metadata = block.Metadata + return nil + case ErrNotCoordinatorForConsumer: + if retries <= 0 { + return block.Err + } + if err := pom.selectBroker(); err != nil { + return err + } + return pom.fetchInitialOffset(retries - 1) + case ErrOffsetsLoadInProgress: + if retries <= 0 { + return block.Err + } + time.Sleep(pom.parent.conf.Metadata.Retry.Backoff) + return pom.fetchInitialOffset(retries - 1) + default: + return block.Err + } +} + +func (pom *partitionOffsetManager) handleError(err error) { + cErr := &ConsumerError{ + Topic: pom.topic, + Partition: pom.partition, + Err: err, + } + + if pom.parent.conf.Consumer.Return.Errors { + pom.errors <- cErr + } else { + Logger.Println(cErr) + } +} + +func (pom *partitionOffsetManager) Errors() <-chan *ConsumerError { + return pom.errors +} + +func (pom *partitionOffsetManager) MarkOffset(offset int64, metadata string) { + pom.lock.Lock() + defer pom.lock.Unlock() + + if offset > pom.offset { + pom.offset = offset + pom.metadata = metadata + pom.dirty = true + } +} + +func (pom *partitionOffsetManager) updateCommitted(offset int64, metadata string) { + pom.lock.Lock() + defer pom.lock.Unlock() + + if pom.offset == offset && pom.metadata == metadata { + pom.dirty = false + + select { + case pom.clean <- none{}: + default: + } + } +} + +func (pom *partitionOffsetManager) NextOffset() (int64, string) { + pom.lock.Lock() + defer pom.lock.Unlock() + + if pom.offset >= 0 { + return pom.offset + 1, pom.metadata + } + + return pom.parent.conf.Consumer.Offsets.Initial, "" +} + +func (pom *partitionOffsetManager) AsyncClose() { + go func() { + pom.lock.Lock() + dirty := pom.dirty + pom.lock.Unlock() + + if dirty { + <-pom.clean + } + + close(pom.dying) + }() +} + +func (pom *partitionOffsetManager) Close() error { + pom.AsyncClose() + + var errors ConsumerErrors + for err := range pom.errors { + errors = append(errors, err) + } + + if len(errors) > 0 { + return errors + } + return nil +} + +// Broker Offset Manager + +type brokerOffsetManager struct { + parent *offsetManager + broker *Broker + timer *time.Ticker + updateSubscriptions chan *partitionOffsetManager + subscriptions map[*partitionOffsetManager]none + refs int +} + +func (om *offsetManager) newBrokerOffsetManager(broker *Broker) *brokerOffsetManager { + bom := &brokerOffsetManager{ + parent: om, + broker: broker, + timer: time.NewTicker(om.conf.Consumer.Offsets.CommitInterval), + updateSubscriptions: make(chan *partitionOffsetManager), + subscriptions: make(map[*partitionOffsetManager]none), + } + + go withRecover(bom.mainLoop) + + return bom +} + +func (bom *brokerOffsetManager) mainLoop() { + for { + select { + case <-bom.timer.C: + if len(bom.subscriptions) > 0 { + bom.flushToBroker() + } + case s, ok := <-bom.updateSubscriptions: + if !ok { + bom.timer.Stop() + return + } + if _, ok := bom.subscriptions[s]; ok { + delete(bom.subscriptions, s) + } else { + bom.subscriptions[s] = none{} + } + } + } +} + +func (bom *brokerOffsetManager) flushToBroker() { + request := bom.constructRequest() + if request == nil { + return + } + + response, err := bom.broker.CommitOffset(request) + + if err != nil { + bom.abort(err) + return + } + + for s := range bom.subscriptions { + if request.blocks[s.topic] == nil || request.blocks[s.topic][s.partition] == nil { + continue + } + + var err KError + var ok bool + + if response.Errors[s.topic] == nil { + s.handleError(ErrIncompleteResponse) + delete(bom.subscriptions, s) + s.rebalance <- none{} + continue + } + if err, ok = response.Errors[s.topic][s.partition]; !ok { + s.handleError(ErrIncompleteResponse) + delete(bom.subscriptions, s) + s.rebalance <- none{} + continue + } + + switch err { + case ErrNoError: + block := request.blocks[s.topic][s.partition] + s.updateCommitted(block.offset, block.metadata) + break + case ErrUnknownTopicOrPartition, ErrNotLeaderForPartition, ErrLeaderNotAvailable: + delete(bom.subscriptions, s) + s.rebalance <- none{} + default: + s.handleError(err) + delete(bom.subscriptions, s) + s.rebalance <- none{} + } + } +} + +func (bom *brokerOffsetManager) constructRequest() *OffsetCommitRequest { + r := &OffsetCommitRequest{ + Version: 1, + ConsumerGroup: bom.parent.group, + } + + for s := range bom.subscriptions { + s.lock.Lock() + if s.dirty { + r.AddBlock(s.topic, s.partition, s.offset, ReceiveTime, s.metadata) + } + s.lock.Unlock() + } + + if len(r.blocks) > 0 { + return r + } + + return nil +} + +func (bom *brokerOffsetManager) abort(err error) { + _ = bom.broker.Close() // we don't care about the error this might return, we already have one + bom.parent.abandonBroker(bom) + + for pom := range bom.subscriptions { + pom.handleError(err) + pom.rebalance <- none{} + } + + for s := range bom.updateSubscriptions { + if _, ok := bom.subscriptions[s]; !ok { + s.handleError(err) + s.rebalance <- none{} + } + } + + bom.subscriptions = make(map[*partitionOffsetManager]none) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/offset_request.go b/Godeps/_workspace/src/github.com/Shopify/sarama/offset_request.go new file mode 100644 index 0000000..842d5c0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/offset_request.go @@ -0,0 +1,113 @@ +package sarama + +type offsetRequestBlock struct { + time int64 + maxOffsets int32 +} + +func (r *offsetRequestBlock) encode(pe packetEncoder) error { + pe.putInt64(int64(r.time)) + pe.putInt32(r.maxOffsets) + return nil +} + +func (r *offsetRequestBlock) decode(pd packetDecoder) (err error) { + if r.time, err = pd.getInt64(); err != nil { + return err + } + if r.maxOffsets, err = pd.getInt32(); err != nil { + return err + } + return nil +} + +type OffsetRequest struct { + blocks map[string]map[int32]*offsetRequestBlock +} + +func (r *OffsetRequest) encode(pe packetEncoder) error { + pe.putInt32(-1) // replica ID is always -1 for clients + err := pe.putArrayLength(len(r.blocks)) + if err != nil { + return err + } + for topic, partitions := range r.blocks { + err = pe.putString(topic) + if err != nil { + return err + } + err = pe.putArrayLength(len(partitions)) + if err != nil { + return err + } + for partition, block := range partitions { + pe.putInt32(partition) + if err = block.encode(pe); err != nil { + return err + } + } + } + return nil +} + +func (r *OffsetRequest) decode(pd packetDecoder) error { + // Ignore replica ID + if _, err := pd.getInt32(); err != nil { + return err + } + blockCount, err := pd.getArrayLength() + if err != nil { + return err + } + if blockCount == 0 { + return nil + } + r.blocks = make(map[string]map[int32]*offsetRequestBlock) + for i := 0; i < blockCount; i++ { + topic, err := pd.getString() + if err != nil { + return err + } + partitionCount, err := pd.getArrayLength() + if err != nil { + return err + } + r.blocks[topic] = make(map[int32]*offsetRequestBlock) + for j := 0; j < partitionCount; j++ { + partition, err := pd.getInt32() + if err != nil { + return err + } + block := &offsetRequestBlock{} + if err := block.decode(pd); err != nil { + return err + } + r.blocks[topic][partition] = block + } + } + return nil +} + +func (r *OffsetRequest) key() int16 { + return 2 +} + +func (r *OffsetRequest) version() int16 { + return 0 +} + +func (r *OffsetRequest) AddBlock(topic string, partitionID int32, time int64, maxOffsets int32) { + if r.blocks == nil { + r.blocks = make(map[string]map[int32]*offsetRequestBlock) + } + + if r.blocks[topic] == nil { + r.blocks[topic] = make(map[int32]*offsetRequestBlock) + } + + tmp := new(offsetRequestBlock) + tmp.time = time + tmp.maxOffsets = maxOffsets + + r.blocks[topic][partitionID] = tmp +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/offset_response.go b/Godeps/_workspace/src/github.com/Shopify/sarama/offset_response.go new file mode 100644 index 0000000..07d71ca --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/offset_response.go @@ -0,0 +1,130 @@ +package sarama + +type OffsetResponseBlock struct { + Err KError + Offsets []int64 +} + +func (r *OffsetResponseBlock) decode(pd packetDecoder) (err error) { + tmp, err := pd.getInt16() + if err != nil { + return err + } + r.Err = KError(tmp) + + r.Offsets, err = pd.getInt64Array() + + return err +} + +func (r *OffsetResponseBlock) encode(pe packetEncoder) (err error) { + pe.putInt16(int16(r.Err)) + + return pe.putInt64Array(r.Offsets) +} + +type OffsetResponse struct { + Blocks map[string]map[int32]*OffsetResponseBlock +} + +func (r *OffsetResponse) decode(pd packetDecoder) (err error) { + numTopics, err := pd.getArrayLength() + if err != nil { + return err + } + + r.Blocks = make(map[string]map[int32]*OffsetResponseBlock, numTopics) + for i := 0; i < numTopics; i++ { + name, err := pd.getString() + if err != nil { + return err + } + + numBlocks, err := pd.getArrayLength() + if err != nil { + return err + } + + r.Blocks[name] = make(map[int32]*OffsetResponseBlock, numBlocks) + + for j := 0; j < numBlocks; j++ { + id, err := pd.getInt32() + if err != nil { + return err + } + + block := new(OffsetResponseBlock) + err = block.decode(pd) + if err != nil { + return err + } + r.Blocks[name][id] = block + } + } + + return nil +} + +func (r *OffsetResponse) GetBlock(topic string, partition int32) *OffsetResponseBlock { + if r.Blocks == nil { + return nil + } + + if r.Blocks[topic] == nil { + return nil + } + + return r.Blocks[topic][partition] +} + +/* +// [0 0 0 1 ntopics +0 8 109 121 95 116 111 112 105 99 topic +0 0 0 1 npartitions +0 0 0 0 id +0 0 + +0 0 0 1 0 0 0 0 +0 1 1 1 0 0 0 1 +0 8 109 121 95 116 111 112 +105 99 0 0 0 1 0 0 +0 0 0 0 0 0 0 1 +0 0 0 0 0 1 1 1] + +*/ +func (r *OffsetResponse) encode(pe packetEncoder) (err error) { + if err = pe.putArrayLength(len(r.Blocks)); err != nil { + return err + } + + for topic, partitions := range r.Blocks { + if err = pe.putString(topic); err != nil { + return err + } + if err = pe.putArrayLength(len(partitions)); err != nil { + return err + } + for partition, block := range partitions { + pe.putInt32(partition) + if err = block.encode(pe); err != nil { + return err + } + } + } + + return nil +} + +// testing API + +func (r *OffsetResponse) AddTopicPartition(topic string, partition int32, offset int64) { + if r.Blocks == nil { + r.Blocks = make(map[string]map[int32]*OffsetResponseBlock) + } + byTopic, ok := r.Blocks[topic] + if !ok { + byTopic = make(map[int32]*OffsetResponseBlock) + r.Blocks[topic] = byTopic + } + byTopic[partition] = &OffsetResponseBlock{Offsets: []int64{offset}} +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/packet_decoder.go b/Godeps/_workspace/src/github.com/Shopify/sarama/packet_decoder.go new file mode 100644 index 0000000..28670c0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/packet_decoder.go @@ -0,0 +1,45 @@ +package sarama + +// PacketDecoder is the interface providing helpers for reading with Kafka's encoding rules. +// Types implementing Decoder only need to worry about calling methods like GetString, +// not about how a string is represented in Kafka. +type packetDecoder interface { + // Primitives + getInt8() (int8, error) + getInt16() (int16, error) + getInt32() (int32, error) + getInt64() (int64, error) + getArrayLength() (int, error) + + // Collections + getBytes() ([]byte, error) + getString() (string, error) + getInt32Array() ([]int32, error) + getInt64Array() ([]int64, error) + getStringArray() ([]string, error) + + // Subsets + remaining() int + getSubset(length int) (packetDecoder, error) + + // Stacks, see PushDecoder + push(in pushDecoder) error + pop() error +} + +// PushDecoder is the interface for decoding fields like CRCs and lengths where the validity +// of the field depends on what is after it in the packet. Start them with PacketDecoder.Push() where +// the actual value is located in the packet, then PacketDecoder.Pop() them when all the bytes they +// depend upon have been decoded. +type pushDecoder interface { + // Saves the offset into the input buffer as the location to actually read the calculated value when able. + saveOffset(in int) + + // Returns the length of data to reserve for the input of this encoder (eg 4 bytes for a CRC32). + reserveLength() int + + // Indicates that all required data is now available to calculate and check the field. + // SaveOffset is guaranteed to have been called first. The implementation should read ReserveLength() bytes + // of data from the saved offset, and verify it based on the data between the saved offset and curOffset. + check(curOffset int, buf []byte) error +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/packet_encoder.go b/Godeps/_workspace/src/github.com/Shopify/sarama/packet_encoder.go new file mode 100644 index 0000000..0df6e24 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/packet_encoder.go @@ -0,0 +1,42 @@ +package sarama + +// PacketEncoder is the interface providing helpers for writing with Kafka's encoding rules. +// Types implementing Encoder only need to worry about calling methods like PutString, +// not about how a string is represented in Kafka. +type packetEncoder interface { + // Primitives + putInt8(in int8) + putInt16(in int16) + putInt32(in int32) + putInt64(in int64) + putArrayLength(in int) error + + // Collections + putBytes(in []byte) error + putRawBytes(in []byte) error + putString(in string) error + putStringArray(in []string) error + putInt32Array(in []int32) error + putInt64Array(in []int64) error + + // Stacks, see PushEncoder + push(in pushEncoder) + pop() error +} + +// PushEncoder is the interface for encoding fields like CRCs and lengths where the value +// of the field depends on what is encoded after it in the packet. Start them with PacketEncoder.Push() where +// the actual value is located in the packet, then PacketEncoder.Pop() them when all the bytes they +// depend upon have been written. +type pushEncoder interface { + // Saves the offset into the input buffer as the location to actually write the calculated value when able. + saveOffset(in int) + + // Returns the length of data to reserve for the output of this encoder (eg 4 bytes for a CRC32). + reserveLength() int + + // Indicates that all required data is now available to calculate and write the field. + // SaveOffset is guaranteed to have been called first. The implementation should write ReserveLength() bytes + // of data to the saved offset, based on the data between the saved offset and curOffset. + run(curOffset int, buf []byte) error +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/partitioner.go b/Godeps/_workspace/src/github.com/Shopify/sarama/partitioner.go new file mode 100644 index 0000000..8c2bca4 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/partitioner.go @@ -0,0 +1,123 @@ +package sarama + +import ( + "hash" + "hash/fnv" + "math/rand" + "time" +) + +// Partitioner is anything that, given a Kafka message and a number of partitions indexed [0...numPartitions-1], +// decides to which partition to send the message. RandomPartitioner, RoundRobinPartitioner and HashPartitioner are provided +// as simple default implementations. +type Partitioner interface { + // Partition takes a message and partition count and chooses a partition + Partition(message *ProducerMessage, numPartitions int32) (int32, error) + + // RequiresConsistency indicates to the user of the partitioner whether the + // mapping of key->partition is consistent or not. Specifically, if a + // partitioner requires consistency then it must be allowed to choose from all + // partitions (even ones known to be unavailable), and its choice must be + // respected by the caller. The obvious example is the HashPartitioner. + RequiresConsistency() bool +} + +// PartitionerConstructor is the type for a function capable of constructing new Partitioners. +type PartitionerConstructor func(topic string) Partitioner + +type manualPartitioner struct{} + +// NewManualPartitioner returns a Partitioner which uses the partition manually set in the provided +// ProducerMessage's Partition field as the partition to produce to. +func NewManualPartitioner(topic string) Partitioner { + return new(manualPartitioner) +} + +func (p *manualPartitioner) Partition(message *ProducerMessage, numPartitions int32) (int32, error) { + return message.Partition, nil +} + +func (p *manualPartitioner) RequiresConsistency() bool { + return true +} + +type randomPartitioner struct { + generator *rand.Rand +} + +// NewRandomPartitioner returns a Partitioner which chooses a random partition each time. +func NewRandomPartitioner(topic string) Partitioner { + p := new(randomPartitioner) + p.generator = rand.New(rand.NewSource(time.Now().UTC().UnixNano())) + return p +} + +func (p *randomPartitioner) Partition(message *ProducerMessage, numPartitions int32) (int32, error) { + return int32(p.generator.Intn(int(numPartitions))), nil +} + +func (p *randomPartitioner) RequiresConsistency() bool { + return false +} + +type roundRobinPartitioner struct { + partition int32 +} + +// NewRoundRobinPartitioner returns a Partitioner which walks through the available partitions one at a time. +func NewRoundRobinPartitioner(topic string) Partitioner { + return &roundRobinPartitioner{} +} + +func (p *roundRobinPartitioner) Partition(message *ProducerMessage, numPartitions int32) (int32, error) { + if p.partition >= numPartitions { + p.partition = 0 + } + ret := p.partition + p.partition++ + return ret, nil +} + +func (p *roundRobinPartitioner) RequiresConsistency() bool { + return false +} + +type hashPartitioner struct { + random Partitioner + hasher hash.Hash32 +} + +// NewHashPartitioner returns a Partitioner which behaves as follows. If the message's key is nil, or fails to +// encode, then a random partition is chosen. Otherwise the FNV-1a hash of the encoded bytes of the message key +// is used, modulus the number of partitions. This ensures that messages with the same key always end up on the +// same partition. +func NewHashPartitioner(topic string) Partitioner { + p := new(hashPartitioner) + p.random = NewRandomPartitioner(topic) + p.hasher = fnv.New32a() + return p +} + +func (p *hashPartitioner) Partition(message *ProducerMessage, numPartitions int32) (int32, error) { + if message.Key == nil { + return p.random.Partition(message, numPartitions) + } + bytes, err := message.Key.Encode() + if err != nil { + return -1, err + } + p.hasher.Reset() + _, err = p.hasher.Write(bytes) + if err != nil { + return -1, err + } + hash := int32(p.hasher.Sum32()) + if hash < 0 { + hash = -hash + } + return hash % numPartitions, nil +} + +func (p *hashPartitioner) RequiresConsistency() bool { + return true +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/prep_encoder.go b/Godeps/_workspace/src/github.com/Shopify/sarama/prep_encoder.go new file mode 100644 index 0000000..8c6ba85 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/prep_encoder.go @@ -0,0 +1,110 @@ +package sarama + +import ( + "fmt" + "math" +) + +type prepEncoder struct { + length int +} + +// primitives + +func (pe *prepEncoder) putInt8(in int8) { + pe.length++ +} + +func (pe *prepEncoder) putInt16(in int16) { + pe.length += 2 +} + +func (pe *prepEncoder) putInt32(in int32) { + pe.length += 4 +} + +func (pe *prepEncoder) putInt64(in int64) { + pe.length += 8 +} + +func (pe *prepEncoder) putArrayLength(in int) error { + if in > math.MaxInt32 { + return PacketEncodingError{fmt.Sprintf("array too long (%d)", in)} + } + pe.length += 4 + return nil +} + +// arrays + +func (pe *prepEncoder) putBytes(in []byte) error { + pe.length += 4 + if in == nil { + return nil + } + if len(in) > math.MaxInt32 { + return PacketEncodingError{fmt.Sprintf("byteslice too long (%d)", len(in))} + } + pe.length += len(in) + return nil +} + +func (pe *prepEncoder) putRawBytes(in []byte) error { + if len(in) > math.MaxInt32 { + return PacketEncodingError{fmt.Sprintf("byteslice too long (%d)", len(in))} + } + pe.length += len(in) + return nil +} + +func (pe *prepEncoder) putString(in string) error { + pe.length += 2 + if len(in) > math.MaxInt16 { + return PacketEncodingError{fmt.Sprintf("string too long (%d)", len(in))} + } + pe.length += len(in) + return nil +} + +func (pe *prepEncoder) putStringArray(in []string) error { + err := pe.putArrayLength(len(in)) + if err != nil { + return err + } + + for _, str := range in { + if err := pe.putString(str); err != nil { + return err + } + } + + return nil +} + +func (pe *prepEncoder) putInt32Array(in []int32) error { + err := pe.putArrayLength(len(in)) + if err != nil { + return err + } + pe.length += 4 * len(in) + return nil +} + +func (pe *prepEncoder) putInt64Array(in []int64) error { + err := pe.putArrayLength(len(in)) + if err != nil { + return err + } + pe.length += 8 * len(in) + return nil +} + +// stackable + +func (pe *prepEncoder) push(in pushEncoder) { + pe.length += in.reserveLength() +} + +func (pe *prepEncoder) pop() error { + return nil +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/produce_request.go b/Godeps/_workspace/src/github.com/Shopify/sarama/produce_request.go new file mode 100644 index 0000000..473513c --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/produce_request.go @@ -0,0 +1,145 @@ +package sarama + +// RequiredAcks is used in Produce Requests to tell the broker how many replica acknowledgements +// it must see before responding. Any of the constants defined here are valid. On broker versions +// prior to 0.8.2.0 any other positive int16 is also valid (the broker will wait for that many +// acknowledgements) but in 0.8.2.0 and later this will raise an exception (it has been replaced +// by setting the `min.isr` value in the brokers configuration). +type RequiredAcks int16 + +const ( + // NoResponse doesn't send any response, the TCP ACK is all you get. + NoResponse RequiredAcks = 0 + // WaitForLocal waits for only the local commit to succeed before responding. + WaitForLocal RequiredAcks = 1 + // WaitForAll waits for all replicas to commit before responding. + WaitForAll RequiredAcks = -1 +) + +type ProduceRequest struct { + RequiredAcks RequiredAcks + Timeout int32 + msgSets map[string]map[int32]*MessageSet +} + +func (p *ProduceRequest) encode(pe packetEncoder) error { + pe.putInt16(int16(p.RequiredAcks)) + pe.putInt32(p.Timeout) + err := pe.putArrayLength(len(p.msgSets)) + if err != nil { + return err + } + for topic, partitions := range p.msgSets { + err = pe.putString(topic) + if err != nil { + return err + } + err = pe.putArrayLength(len(partitions)) + if err != nil { + return err + } + for id, msgSet := range partitions { + pe.putInt32(id) + pe.push(&lengthField{}) + err = msgSet.encode(pe) + if err != nil { + return err + } + err = pe.pop() + if err != nil { + return err + } + } + } + return nil +} + +func (p *ProduceRequest) decode(pd packetDecoder) error { + requiredAcks, err := pd.getInt16() + if err != nil { + return err + } + p.RequiredAcks = RequiredAcks(requiredAcks) + if p.Timeout, err = pd.getInt32(); err != nil { + return err + } + topicCount, err := pd.getArrayLength() + if err != nil { + return err + } + if topicCount == 0 { + return nil + } + p.msgSets = make(map[string]map[int32]*MessageSet) + for i := 0; i < topicCount; i++ { + topic, err := pd.getString() + if err != nil { + return err + } + partitionCount, err := pd.getArrayLength() + if err != nil { + return err + } + p.msgSets[topic] = make(map[int32]*MessageSet) + for j := 0; j < partitionCount; j++ { + partition, err := pd.getInt32() + if err != nil { + return err + } + messageSetSize, err := pd.getInt32() + if err != nil { + return err + } + msgSetDecoder, err := pd.getSubset(int(messageSetSize)) + if err != nil { + return err + } + msgSet := &MessageSet{} + err = msgSet.decode(msgSetDecoder) + if err != nil { + return err + } + p.msgSets[topic][partition] = msgSet + } + } + return nil +} + +func (p *ProduceRequest) key() int16 { + return 0 +} + +func (p *ProduceRequest) version() int16 { + return 0 +} + +func (p *ProduceRequest) AddMessage(topic string, partition int32, msg *Message) { + if p.msgSets == nil { + p.msgSets = make(map[string]map[int32]*MessageSet) + } + + if p.msgSets[topic] == nil { + p.msgSets[topic] = make(map[int32]*MessageSet) + } + + set := p.msgSets[topic][partition] + + if set == nil { + set = new(MessageSet) + p.msgSets[topic][partition] = set + } + + set.addMessage(msg) +} + +func (p *ProduceRequest) AddSet(topic string, partition int32, set *MessageSet) { + if p.msgSets == nil { + p.msgSets = make(map[string]map[int32]*MessageSet) + } + + if p.msgSets[topic] == nil { + p.msgSets[topic] = make(map[int32]*MessageSet) + } + + p.msgSets[topic][partition] = set +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/produce_response.go b/Godeps/_workspace/src/github.com/Shopify/sarama/produce_response.go new file mode 100644 index 0000000..1f49a85 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/produce_response.go @@ -0,0 +1,112 @@ +package sarama + +type ProduceResponseBlock struct { + Err KError + Offset int64 +} + +func (pr *ProduceResponseBlock) decode(pd packetDecoder) (err error) { + tmp, err := pd.getInt16() + if err != nil { + return err + } + pr.Err = KError(tmp) + + pr.Offset, err = pd.getInt64() + if err != nil { + return err + } + + return nil +} + +type ProduceResponse struct { + Blocks map[string]map[int32]*ProduceResponseBlock +} + +func (pr *ProduceResponse) decode(pd packetDecoder) (err error) { + numTopics, err := pd.getArrayLength() + if err != nil { + return err + } + + pr.Blocks = make(map[string]map[int32]*ProduceResponseBlock, numTopics) + for i := 0; i < numTopics; i++ { + name, err := pd.getString() + if err != nil { + return err + } + + numBlocks, err := pd.getArrayLength() + if err != nil { + return err + } + + pr.Blocks[name] = make(map[int32]*ProduceResponseBlock, numBlocks) + + for j := 0; j < numBlocks; j++ { + id, err := pd.getInt32() + if err != nil { + return err + } + + block := new(ProduceResponseBlock) + err = block.decode(pd) + if err != nil { + return err + } + pr.Blocks[name][id] = block + } + } + + return nil +} + +func (pr *ProduceResponse) encode(pe packetEncoder) error { + err := pe.putArrayLength(len(pr.Blocks)) + if err != nil { + return err + } + for topic, partitions := range pr.Blocks { + err = pe.putString(topic) + if err != nil { + return err + } + err = pe.putArrayLength(len(partitions)) + if err != nil { + return err + } + for id, prb := range partitions { + pe.putInt32(id) + pe.putInt16(int16(prb.Err)) + pe.putInt64(prb.Offset) + } + } + return nil +} + +func (pr *ProduceResponse) GetBlock(topic string, partition int32) *ProduceResponseBlock { + if pr.Blocks == nil { + return nil + } + + if pr.Blocks[topic] == nil { + return nil + } + + return pr.Blocks[topic][partition] +} + +// Testing API + +func (pr *ProduceResponse) AddTopicPartition(topic string, partition int32, err KError) { + if pr.Blocks == nil { + pr.Blocks = make(map[string]map[int32]*ProduceResponseBlock) + } + byTopic, ok := pr.Blocks[topic] + if !ok { + byTopic = make(map[int32]*ProduceResponseBlock) + pr.Blocks[topic] = byTopic + } + byTopic[partition] = &ProduceResponseBlock{Err: err} +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/produce_set.go b/Godeps/_workspace/src/github.com/Shopify/sarama/produce_set.go new file mode 100644 index 0000000..9fe5f79 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/produce_set.go @@ -0,0 +1,158 @@ +package sarama + +import "time" + +type partitionSet struct { + msgs []*ProducerMessage + setToSend *MessageSet + bufferBytes int +} + +type produceSet struct { + parent *asyncProducer + msgs map[string]map[int32]*partitionSet + + bufferBytes int + bufferCount int +} + +func newProduceSet(parent *asyncProducer) *produceSet { + return &produceSet{ + msgs: make(map[string]map[int32]*partitionSet), + parent: parent, + } +} + +func (ps *produceSet) add(msg *ProducerMessage) error { + var err error + var key, val []byte + + if msg.Key != nil { + if key, err = msg.Key.Encode(); err != nil { + return err + } + } + + if msg.Value != nil { + if val, err = msg.Value.Encode(); err != nil { + return err + } + } + + partitions := ps.msgs[msg.Topic] + if partitions == nil { + partitions = make(map[int32]*partitionSet) + ps.msgs[msg.Topic] = partitions + } + + set := partitions[msg.Partition] + if set == nil { + set = &partitionSet{setToSend: new(MessageSet)} + partitions[msg.Partition] = set + } + + set.msgs = append(set.msgs, msg) + set.setToSend.addMessage(&Message{Codec: CompressionNone, Key: key, Value: val}) + + size := producerMessageOverhead + len(key) + len(val) + set.bufferBytes += size + ps.bufferBytes += size + ps.bufferCount++ + + return nil +} + +func (ps *produceSet) buildRequest() *ProduceRequest { + req := &ProduceRequest{ + RequiredAcks: ps.parent.conf.Producer.RequiredAcks, + Timeout: int32(ps.parent.conf.Producer.Timeout / time.Millisecond), + } + + for topic, partitionSet := range ps.msgs { + for partition, set := range partitionSet { + if ps.parent.conf.Producer.Compression == CompressionNone { + req.AddSet(topic, partition, set.setToSend) + } else { + // When compression is enabled, the entire set for each partition is compressed + // and sent as the payload of a single fake "message" with the appropriate codec + // set and no key. When the server sees a message with a compression codec, it + // decompresses the payload and treats the result as its message set. + payload, err := encode(set.setToSend) + if err != nil { + Logger.Println(err) // if this happens, it's basically our fault. + panic(err) + } + req.AddMessage(topic, partition, &Message{ + Codec: ps.parent.conf.Producer.Compression, + Key: nil, + Value: payload, + }) + } + } + } + + return req +} + +func (ps *produceSet) eachPartition(cb func(topic string, partition int32, msgs []*ProducerMessage)) { + for topic, partitionSet := range ps.msgs { + for partition, set := range partitionSet { + cb(topic, partition, set.msgs) + } + } +} + +func (ps *produceSet) dropPartition(topic string, partition int32) []*ProducerMessage { + if ps.msgs[topic] == nil { + return nil + } + set := ps.msgs[topic][partition] + if set == nil { + return nil + } + ps.bufferBytes -= set.bufferBytes + ps.bufferCount -= len(set.msgs) + delete(ps.msgs[topic], partition) + return set.msgs +} + +func (ps *produceSet) wouldOverflow(msg *ProducerMessage) bool { + switch { + // Would we overflow our maximum possible size-on-the-wire? 10KiB is arbitrary overhead for safety. + case ps.bufferBytes+msg.byteSize() >= int(MaxRequestSize-(10*1024)): + return true + // Would we overflow the size-limit of a compressed message-batch for this partition? + case ps.parent.conf.Producer.Compression != CompressionNone && + ps.msgs[msg.Topic] != nil && ps.msgs[msg.Topic][msg.Partition] != nil && + ps.msgs[msg.Topic][msg.Partition].bufferBytes+msg.byteSize() >= ps.parent.conf.Producer.MaxMessageBytes: + return true + // Would we overflow simply in number of messages? + case ps.parent.conf.Producer.Flush.MaxMessages > 0 && ps.bufferCount >= ps.parent.conf.Producer.Flush.MaxMessages: + return true + default: + return false + } +} + +func (ps *produceSet) readyToFlush() bool { + switch { + // If we don't have any messages, nothing else matters + case ps.empty(): + return false + // If all three config values are 0, we always flush as-fast-as-possible + case ps.parent.conf.Producer.Flush.Frequency == 0 && ps.parent.conf.Producer.Flush.Bytes == 0 && ps.parent.conf.Producer.Flush.Messages == 0: + return true + // If we've passed the message trigger-point + case ps.parent.conf.Producer.Flush.Messages > 0 && ps.bufferCount >= ps.parent.conf.Producer.Flush.Messages: + return true + // If we've passed the byte trigger-point + case ps.parent.conf.Producer.Flush.Bytes > 0 && ps.bufferBytes >= ps.parent.conf.Producer.Flush.Bytes: + return true + default: + return false + } +} + +func (ps *produceSet) empty() bool { + return ps.bufferCount == 0 +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/real_decoder.go b/Godeps/_workspace/src/github.com/Shopify/sarama/real_decoder.go new file mode 100644 index 0000000..e3ea331 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/real_decoder.go @@ -0,0 +1,254 @@ +package sarama + +import ( + "encoding/binary" + "math" +) + +type realDecoder struct { + raw []byte + off int + stack []pushDecoder +} + +// primitives + +func (rd *realDecoder) getInt8() (int8, error) { + if rd.remaining() < 1 { + rd.off = len(rd.raw) + return -1, ErrInsufficientData + } + tmp := int8(rd.raw[rd.off]) + rd.off++ + return tmp, nil +} + +func (rd *realDecoder) getInt16() (int16, error) { + if rd.remaining() < 2 { + rd.off = len(rd.raw) + return -1, ErrInsufficientData + } + tmp := int16(binary.BigEndian.Uint16(rd.raw[rd.off:])) + rd.off += 2 + return tmp, nil +} + +func (rd *realDecoder) getInt32() (int32, error) { + if rd.remaining() < 4 { + rd.off = len(rd.raw) + return -1, ErrInsufficientData + } + tmp := int32(binary.BigEndian.Uint32(rd.raw[rd.off:])) + rd.off += 4 + return tmp, nil +} + +func (rd *realDecoder) getInt64() (int64, error) { + if rd.remaining() < 8 { + rd.off = len(rd.raw) + return -1, ErrInsufficientData + } + tmp := int64(binary.BigEndian.Uint64(rd.raw[rd.off:])) + rd.off += 8 + return tmp, nil +} + +func (rd *realDecoder) getArrayLength() (int, error) { + if rd.remaining() < 4 { + rd.off = len(rd.raw) + return -1, ErrInsufficientData + } + tmp := int(binary.BigEndian.Uint32(rd.raw[rd.off:])) + rd.off += 4 + if tmp > rd.remaining() { + rd.off = len(rd.raw) + return -1, ErrInsufficientData + } else if tmp > 2*math.MaxUint16 { + return -1, PacketDecodingError{"invalid array length"} + } + return tmp, nil +} + +// collections + +func (rd *realDecoder) getBytes() ([]byte, error) { + tmp, err := rd.getInt32() + + if err != nil { + return nil, err + } + + n := int(tmp) + + switch { + case n < -1: + return nil, PacketDecodingError{"invalid byteslice length"} + case n == -1: + return nil, nil + case n == 0: + return make([]byte, 0), nil + case n > rd.remaining(): + rd.off = len(rd.raw) + return nil, ErrInsufficientData + } + + tmpStr := rd.raw[rd.off : rd.off+n] + rd.off += n + return tmpStr, nil +} + +func (rd *realDecoder) getString() (string, error) { + tmp, err := rd.getInt16() + + if err != nil { + return "", err + } + + n := int(tmp) + + switch { + case n < -1: + return "", PacketDecodingError{"invalid string length"} + case n == -1: + return "", nil + case n == 0: + return "", nil + case n > rd.remaining(): + rd.off = len(rd.raw) + return "", ErrInsufficientData + } + + tmpStr := string(rd.raw[rd.off : rd.off+n]) + rd.off += n + return tmpStr, nil +} + +func (rd *realDecoder) getInt32Array() ([]int32, error) { + if rd.remaining() < 4 { + rd.off = len(rd.raw) + return nil, ErrInsufficientData + } + n := int(binary.BigEndian.Uint32(rd.raw[rd.off:])) + rd.off += 4 + + if rd.remaining() < 4*n { + rd.off = len(rd.raw) + return nil, ErrInsufficientData + } + + if n == 0 { + return nil, nil + } + + if n < 0 { + return nil, PacketDecodingError{"invalid array length"} + } + + ret := make([]int32, n) + for i := range ret { + ret[i] = int32(binary.BigEndian.Uint32(rd.raw[rd.off:])) + rd.off += 4 + } + return ret, nil +} + +func (rd *realDecoder) getInt64Array() ([]int64, error) { + if rd.remaining() < 4 { + rd.off = len(rd.raw) + return nil, ErrInsufficientData + } + n := int(binary.BigEndian.Uint32(rd.raw[rd.off:])) + rd.off += 4 + + if rd.remaining() < 8*n { + rd.off = len(rd.raw) + return nil, ErrInsufficientData + } + + if n == 0 { + return nil, nil + } + + if n < 0 { + return nil, PacketDecodingError{"invalid array length"} + } + + ret := make([]int64, n) + for i := range ret { + ret[i] = int64(binary.BigEndian.Uint64(rd.raw[rd.off:])) + rd.off += 8 + } + return ret, nil +} + +func (rd *realDecoder) getStringArray() ([]string, error) { + if rd.remaining() < 4 { + rd.off = len(rd.raw) + return nil, ErrInsufficientData + } + n := int(binary.BigEndian.Uint32(rd.raw[rd.off:])) + rd.off += 4 + + if n == 0 { + return nil, nil + } + + if n < 0 { + return nil, PacketDecodingError{"invalid array length"} + } + + ret := make([]string, n) + for i := range ret { + if str, err := rd.getString(); err != nil { + return nil, err + } else { + ret[i] = str + } + } + return ret, nil +} + +// subsets + +func (rd *realDecoder) remaining() int { + return len(rd.raw) - rd.off +} + +func (rd *realDecoder) getSubset(length int) (packetDecoder, error) { + if length < 0 { + return nil, PacketDecodingError{"invalid subset size"} + } else if length > rd.remaining() { + rd.off = len(rd.raw) + return nil, ErrInsufficientData + } + + start := rd.off + rd.off += length + return &realDecoder{raw: rd.raw[start:rd.off]}, nil +} + +// stacks + +func (rd *realDecoder) push(in pushDecoder) error { + in.saveOffset(rd.off) + + reserve := in.reserveLength() + if rd.remaining() < reserve { + rd.off = len(rd.raw) + return ErrInsufficientData + } + + rd.stack = append(rd.stack, in) + + rd.off += reserve + + return nil +} + +func (rd *realDecoder) pop() error { + // this is go's ugly pop pattern (the inverse of append) + in := rd.stack[len(rd.stack)-1] + rd.stack = rd.stack[:len(rd.stack)-1] + + return in.check(rd.off, rd.raw) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/real_encoder.go b/Godeps/_workspace/src/github.com/Shopify/sarama/real_encoder.go new file mode 100644 index 0000000..076fdd0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/real_encoder.go @@ -0,0 +1,115 @@ +package sarama + +import "encoding/binary" + +type realEncoder struct { + raw []byte + off int + stack []pushEncoder +} + +// primitives + +func (re *realEncoder) putInt8(in int8) { + re.raw[re.off] = byte(in) + re.off++ +} + +func (re *realEncoder) putInt16(in int16) { + binary.BigEndian.PutUint16(re.raw[re.off:], uint16(in)) + re.off += 2 +} + +func (re *realEncoder) putInt32(in int32) { + binary.BigEndian.PutUint32(re.raw[re.off:], uint32(in)) + re.off += 4 +} + +func (re *realEncoder) putInt64(in int64) { + binary.BigEndian.PutUint64(re.raw[re.off:], uint64(in)) + re.off += 8 +} + +func (re *realEncoder) putArrayLength(in int) error { + re.putInt32(int32(in)) + return nil +} + +// collection + +func (re *realEncoder) putRawBytes(in []byte) error { + copy(re.raw[re.off:], in) + re.off += len(in) + return nil +} + +func (re *realEncoder) putBytes(in []byte) error { + if in == nil { + re.putInt32(-1) + return nil + } + re.putInt32(int32(len(in))) + copy(re.raw[re.off:], in) + re.off += len(in) + return nil +} + +func (re *realEncoder) putString(in string) error { + re.putInt16(int16(len(in))) + copy(re.raw[re.off:], in) + re.off += len(in) + return nil +} + +func (re *realEncoder) putStringArray(in []string) error { + err := re.putArrayLength(len(in)) + if err != nil { + return err + } + + for _, val := range in { + if err := re.putString(val); err != nil { + return err + } + } + + return nil +} + +func (re *realEncoder) putInt32Array(in []int32) error { + err := re.putArrayLength(len(in)) + if err != nil { + return err + } + for _, val := range in { + re.putInt32(val) + } + return nil +} + +func (re *realEncoder) putInt64Array(in []int64) error { + err := re.putArrayLength(len(in)) + if err != nil { + return err + } + for _, val := range in { + re.putInt64(val) + } + return nil +} + +// stacks + +func (re *realEncoder) push(in pushEncoder) { + in.saveOffset(re.off) + re.off += in.reserveLength() + re.stack = append(re.stack, in) +} + +func (re *realEncoder) pop() error { + // this is go's ugly pop pattern (the inverse of append) + in := re.stack[len(re.stack)-1] + re.stack = re.stack[:len(re.stack)-1] + + return in.run(re.off, re.raw) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/request.go b/Godeps/_workspace/src/github.com/Shopify/sarama/request.go new file mode 100644 index 0000000..b9f654b --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/request.go @@ -0,0 +1,112 @@ +package sarama + +import ( + "encoding/binary" + "fmt" + "io" +) + +type requestBody interface { + encoder + decoder + key() int16 + version() int16 +} + +type request struct { + correlationID int32 + clientID string + body requestBody +} + +func (r *request) encode(pe packetEncoder) (err error) { + pe.push(&lengthField{}) + pe.putInt16(r.body.key()) + pe.putInt16(r.body.version()) + pe.putInt32(r.correlationID) + err = pe.putString(r.clientID) + if err != nil { + return err + } + err = r.body.encode(pe) + if err != nil { + return err + } + return pe.pop() +} + +func (r *request) decode(pd packetDecoder) (err error) { + var key int16 + if key, err = pd.getInt16(); err != nil { + return err + } + var version int16 + if version, err = pd.getInt16(); err != nil { + return err + } + if r.correlationID, err = pd.getInt32(); err != nil { + return err + } + r.clientID, err = pd.getString() + + r.body = allocateBody(key, version) + if r.body == nil { + return PacketDecodingError{fmt.Sprintf("unknown request key (%d)", key)} + } + return r.body.decode(pd) +} + +func decodeRequest(r io.Reader) (req *request, err error) { + lengthBytes := make([]byte, 4) + if _, err := io.ReadFull(r, lengthBytes); err != nil { + return nil, err + } + + length := int32(binary.BigEndian.Uint32(lengthBytes)) + if length <= 4 || length > MaxRequestSize { + return nil, PacketDecodingError{fmt.Sprintf("message of length %d too large or too small", length)} + } + + encodedReq := make([]byte, length) + if _, err := io.ReadFull(r, encodedReq); err != nil { + return nil, err + } + + req = &request{} + if err := decode(encodedReq, req); err != nil { + return nil, err + } + return req, nil +} + +func allocateBody(key, version int16) requestBody { + switch key { + case 0: + return &ProduceRequest{} + case 1: + return &FetchRequest{} + case 2: + return &OffsetRequest{} + case 3: + return &MetadataRequest{} + case 8: + return &OffsetCommitRequest{Version: version} + case 9: + return &OffsetFetchRequest{} + case 10: + return &ConsumerMetadataRequest{} + case 11: + return &JoinGroupRequest{} + case 12: + return &HeartbeatRequest{} + case 13: + return &LeaveGroupRequest{} + case 14: + return &SyncGroupRequest{} + case 15: + return &DescribeGroupsRequest{} + case 16: + return &ListGroupsRequest{} + } + return nil +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/response_header.go b/Godeps/_workspace/src/github.com/Shopify/sarama/response_header.go new file mode 100644 index 0000000..f3f4d27 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/response_header.go @@ -0,0 +1,21 @@ +package sarama + +import "fmt" + +type responseHeader struct { + length int32 + correlationID int32 +} + +func (r *responseHeader) decode(pd packetDecoder) (err error) { + r.length, err = pd.getInt32() + if err != nil { + return err + } + if r.length <= 4 || r.length > MaxResponseSize { + return PacketDecodingError{fmt.Sprintf("message of length %d too large or too small", r.length)} + } + + r.correlationID, err = pd.getInt32() + return err +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/sarama.go b/Godeps/_workspace/src/github.com/Shopify/sarama/sarama.go new file mode 100644 index 0000000..d598217 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/sarama.go @@ -0,0 +1,47 @@ +/* +Package sarama provides client libraries for the Kafka 0.8 protocol. The AsyncProducer object is the high-level +API for producing messages asynchronously; the SyncProducer provides a blocking API for the same purpose. +The Consumer object is the high-level API for consuming messages. The Client object provides metadata +management functionality that is shared between the higher-level objects. + +For lower-level needs, the Broker and Request/Response objects permit precise control over each connection +and message sent on the wire. + +The Request/Response objects and properties are mostly undocumented, as they line up exactly with the +protocol fields documented by Kafka at https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol +*/ +package sarama + +import ( + "io/ioutil" + "log" +) + +// Logger is the instance of a StdLogger interface that Sarama writes connection +// management events to. By default it is set to discard all log messages via ioutil.Discard, +// but you can set it to redirect wherever you want. +var Logger StdLogger = log.New(ioutil.Discard, "[Sarama] ", log.LstdFlags) + +// StdLogger is used to log error messages. +type StdLogger interface { + Print(v ...interface{}) + Printf(format string, v ...interface{}) + Println(v ...interface{}) +} + +// PanicHandler is called for recovering from panics spawned internally to the library (and thus +// not recoverable by the caller's goroutine). Defaults to nil, which means panics are not recovered. +var PanicHandler func(interface{}) + +// MaxRequestSize is the maximum size (in bytes) of any request that Sarama will attempt to send. Trying +// to send a request larger than this will result in an PacketEncodingError. The default of 100 MiB is aligned +// with Kafka's default `socket.request.max.bytes`, which is the largest request the broker will attempt +// to process. +var MaxRequestSize int32 = 100 * 1024 * 1024 + +// MaxResponseSize is the maximum size (in bytes) of any response that Sarama will attempt to parse. If +// a broker returns a response message larger than this value, Sarama will return a PacketDecodingError to +// protect the client from running out of memory. Please note that brokers do not have any natural limit on +// the size of responses they send. In particular, they can send arbitrarily large fetch responses to consumers +// (see https://issues.apache.org/jira/browse/KAFKA-2063). +var MaxResponseSize int32 = 100 * 1024 * 1024 diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/snappy.go b/Godeps/_workspace/src/github.com/Shopify/sarama/snappy.go new file mode 100644 index 0000000..e86cb70 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/snappy.go @@ -0,0 +1,41 @@ +package sarama + +import ( + "bytes" + "encoding/binary" + + "github.com/golang/snappy" +) + +var snappyMagic = []byte{130, 83, 78, 65, 80, 80, 89, 0} + +// SnappyEncode encodes binary data +func snappyEncode(src []byte) []byte { + return snappy.Encode(nil, src) +} + +// SnappyDecode decodes snappy data +func snappyDecode(src []byte) ([]byte, error) { + if bytes.Equal(src[:8], snappyMagic) { + var ( + pos = uint32(16) + max = uint32(len(src)) + dst = make([]byte, 0, len(src)) + chunk []byte + err error + ) + for pos < max { + size := binary.BigEndian.Uint32(src[pos : pos+4]) + pos += 4 + + chunk, err = snappy.Decode(chunk, src[pos:pos+size]) + if err != nil { + return nil, err + } + pos += size + dst = append(dst, chunk...) + } + return dst, nil + } + return snappy.Decode(nil, src) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/sync_group_request.go b/Godeps/_workspace/src/github.com/Shopify/sarama/sync_group_request.go new file mode 100644 index 0000000..60be6f3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/sync_group_request.go @@ -0,0 +1,86 @@ +package sarama + +type SyncGroupRequest struct { + GroupId string + GenerationId int32 + MemberId string + GroupAssignments map[string][]byte +} + +func (r *SyncGroupRequest) encode(pe packetEncoder) error { + if err := pe.putString(r.GroupId); err != nil { + return err + } + + pe.putInt32(r.GenerationId) + + if err := pe.putString(r.MemberId); err != nil { + return err + } + + if err := pe.putArrayLength(len(r.GroupAssignments)); err != nil { + return err + } + for memberId, memberAssignment := range r.GroupAssignments { + if err := pe.putString(memberId); err != nil { + return err + } + if err := pe.putBytes(memberAssignment); err != nil { + return err + } + } + + return nil +} + +func (r *SyncGroupRequest) decode(pd packetDecoder) (err error) { + if r.GroupId, err = pd.getString(); err != nil { + return + } + if r.GenerationId, err = pd.getInt32(); err != nil { + return + } + if r.MemberId, err = pd.getString(); err != nil { + return + } + + n, err := pd.getArrayLength() + if err != nil { + return err + } + if n == 0 { + return nil + } + + r.GroupAssignments = make(map[string][]byte) + for i := 0; i < n; i++ { + memberId, err := pd.getString() + if err != nil { + return err + } + memberAssignment, err := pd.getBytes() + if err != nil { + return err + } + + r.GroupAssignments[memberId] = memberAssignment + } + + return nil +} + +func (r *SyncGroupRequest) key() int16 { + return 14 +} + +func (r *SyncGroupRequest) version() int16 { + return 0 +} + +func (r *SyncGroupRequest) AddGroupAssignment(memberId string, memberAssignment []byte) { + if r.GroupAssignments == nil { + r.GroupAssignments = make(map[string][]byte) + } + + r.GroupAssignments[memberId] = memberAssignment +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/sync_group_response.go b/Godeps/_workspace/src/github.com/Shopify/sarama/sync_group_response.go new file mode 100644 index 0000000..e10685e --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/sync_group_response.go @@ -0,0 +1,22 @@ +package sarama + +type SyncGroupResponse struct { + Err KError + MemberAssignment []byte +} + +func (r *SyncGroupResponse) encode(pe packetEncoder) error { + pe.putInt16(int16(r.Err)) + return pe.putBytes(r.MemberAssignment) +} + +func (r *SyncGroupResponse) decode(pd packetDecoder) (err error) { + if kerr, err := pd.getInt16(); err != nil { + return err + } else { + r.Err = KError(kerr) + } + + r.MemberAssignment, err = pd.getBytes() + return +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/sync_producer.go b/Godeps/_workspace/src/github.com/Shopify/sarama/sync_producer.go new file mode 100644 index 0000000..69a26d1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/sync_producer.go @@ -0,0 +1,95 @@ +package sarama + +import "sync" + +// SyncProducer publishes Kafka messages. It routes messages to the correct broker, refreshing metadata as appropriate, +// and parses responses for errors. You must call Close() on a producer to avoid leaks, it may not be garbage-collected automatically when +// it passes out of scope. +type SyncProducer interface { + + // SendMessage produces a given message, and returns only when it either has + // succeeded or failed to produce. It will return the partition and the offset + // of the produced message, or an error if the message failed to produce. + SendMessage(msg *ProducerMessage) (partition int32, offset int64, err error) + + // Close shuts down the producer and flushes any messages it may have buffered. + // You must call this function before a producer object passes out of scope, as + // it may otherwise leak memory. You must call this before calling Close on the + // underlying client. + Close() error +} + +type syncProducer struct { + producer *asyncProducer + wg sync.WaitGroup +} + +// NewSyncProducer creates a new SyncProducer using the given broker addresses and configuration. +func NewSyncProducer(addrs []string, config *Config) (SyncProducer, error) { + p, err := NewAsyncProducer(addrs, config) + if err != nil { + return nil, err + } + return newSyncProducerFromAsyncProducer(p.(*asyncProducer)), nil +} + +// NewSyncProducerFromClient creates a new SyncProducer using the given client. It is still +// necessary to call Close() on the underlying client when shutting down this producer. +func NewSyncProducerFromClient(client Client) (SyncProducer, error) { + p, err := NewAsyncProducerFromClient(client) + if err != nil { + return nil, err + } + return newSyncProducerFromAsyncProducer(p.(*asyncProducer)), nil +} + +func newSyncProducerFromAsyncProducer(p *asyncProducer) *syncProducer { + p.conf.Producer.Return.Successes = true + p.conf.Producer.Return.Errors = true + sp := &syncProducer{producer: p} + + sp.wg.Add(2) + go withRecover(sp.handleSuccesses) + go withRecover(sp.handleErrors) + + return sp +} + +func (sp *syncProducer) SendMessage(msg *ProducerMessage) (partition int32, offset int64, err error) { + oldMetadata := msg.Metadata + defer func() { + msg.Metadata = oldMetadata + }() + + expectation := make(chan error, 1) + msg.Metadata = expectation + sp.producer.Input() <- msg + + if err := <-expectation; err != nil { + return -1, -1, err + } + + return msg.Partition, msg.Offset, nil +} + +func (sp *syncProducer) handleSuccesses() { + defer sp.wg.Done() + for msg := range sp.producer.Successes() { + expectation := msg.Metadata.(chan error) + expectation <- nil + } +} + +func (sp *syncProducer) handleErrors() { + defer sp.wg.Done() + for err := range sp.producer.Errors() { + expectation := err.Msg.Metadata.(chan error) + expectation <- err.Err + } +} + +func (sp *syncProducer) Close() error { + sp.producer.AsyncClose() + sp.wg.Wait() + return nil +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/tools/README.md b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/README.md new file mode 100644 index 0000000..3464c4a --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/README.md @@ -0,0 +1,10 @@ +# Sarama tools + +This folder contains applications that are useful for exploration of your Kafka cluster, or instrumentation. +Some of these tools mirror tools that ship with Kafka, but these tools won't require installing the JVM to function. + +- [kafka-console-producer](./kafka-console-producer): a command line tool to produce a single message to your Kafka custer. +- [kafka-console-partitionconsumer](./kafka-console-partitionconsumer): (deprecated) a command line tool to consume a single partition of a topic on your Kafka cluster. +- [kafka-console-consumer](./kafka-console-consumer): a command line tool to consume arbitrary partitions of a topic on your Kafka cluster. + +To install all tools, run `go get github.com/Shopify/sarama/tools/...` diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-consumer/.gitignore b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-consumer/.gitignore new file mode 100644 index 0000000..67da9df --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-consumer/.gitignore @@ -0,0 +1,2 @@ +kafka-console-consumer +kafka-console-consumer.test diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-consumer/README.md b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-consumer/README.md new file mode 100644 index 0000000..4e77f0b --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-consumer/README.md @@ -0,0 +1,29 @@ +# kafka-console-consumer + +A simple command line tool to consume partitions of a topic and print the +messages on the standard output. + +### Installation + + go get github.com/Shopify/sarama/tools/kafka-console-consumer + +### Usage + + # Minimum invocation + kafka-console-consumer -topic=test -brokers=kafka1:9092 + + # It will pick up a KAFKA_PEERS environment variable + export KAFKA_PEERS=kafka1:9092,kafka2:9092,kafka3:9092 + kafka-console-consumer -topic=test + + # You can specify the offset you want to start at. It can be either + # `oldest`, `newest`. The default is `newest`. + kafka-console-consumer -topic=test -offset=oldest + kafka-console-consumer -topic=test -offset=newest + + # You can specify the partition(s) you want to consume as a comma-separated + # list. The default is `all`. + kafka-console-consumer -topic=test -partitions=1,2,3 + + # Display all command line options + kafka-console-consumer -help diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-consumer/kafka-console-consumer.go b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-consumer/kafka-console-consumer.go new file mode 100644 index 0000000..0f1eb89 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-consumer/kafka-console-consumer.go @@ -0,0 +1,145 @@ +package main + +import ( + "flag" + "fmt" + "log" + "os" + "os/signal" + "strconv" + "strings" + "sync" + + "github.com/Shopify/sarama" +) + +var ( + brokerList = flag.String("brokers", os.Getenv("KAFKA_PEERS"), "The comma separated list of brokers in the Kafka cluster") + topic = flag.String("topic", "", "REQUIRED: the topic to consume") + partitions = flag.String("partitions", "all", "The partitions to consume, can be 'all' or comma-separated numbers") + offset = flag.String("offset", "newest", "The offset to start with. Can be `oldest`, `newest`") + verbose = flag.Bool("verbose", false, "Whether to turn on sarama logging") + bufferSize = flag.Int("buffer-size", 256, "The buffer size of the message channel.") + + logger = log.New(os.Stderr, "", log.LstdFlags) +) + +func main() { + flag.Parse() + + if *brokerList == "" { + printUsageErrorAndExit("You have to provide -brokers as a comma-separated list, or set the KAFKA_PEERS environment variable.") + } + + if *topic == "" { + printUsageErrorAndExit("-topic is required") + } + + if *verbose { + sarama.Logger = logger + } + + var initialOffset int64 + switch *offset { + case "oldest": + initialOffset = sarama.OffsetOldest + case "newest": + initialOffset = sarama.OffsetNewest + default: + printUsageErrorAndExit("-offset should be `oldest` or `newest`") + } + + c, err := sarama.NewConsumer(strings.Split(*brokerList, ","), nil) + if err != nil { + printErrorAndExit(69, "Failed to start consumer: %s", err) + } + + partitionList, err := getPartitions(c) + if err != nil { + printErrorAndExit(69, "Failed to get the list of partitions: %s", err) + } + + var ( + messages = make(chan *sarama.ConsumerMessage, *bufferSize) + closing = make(chan struct{}) + wg sync.WaitGroup + ) + + go func() { + signals := make(chan os.Signal, 1) + signal.Notify(signals, os.Kill, os.Interrupt) + <-signals + logger.Println("Initiating shutdown of consumer...") + close(closing) + }() + + for _, partition := range partitionList { + pc, err := c.ConsumePartition(*topic, partition, initialOffset) + if err != nil { + printErrorAndExit(69, "Failed to start consumer for partition %d: %s", partition, err) + } + + go func(pc sarama.PartitionConsumer) { + <-closing + pc.AsyncClose() + }(pc) + + wg.Add(1) + go func(pc sarama.PartitionConsumer) { + defer wg.Done() + for message := range pc.Messages() { + messages <- message + } + }(pc) + } + + go func() { + for msg := range messages { + fmt.Printf("Partition:\t%d\n", msg.Partition) + fmt.Printf("Offset:\t%d\n", msg.Offset) + fmt.Printf("Key:\t%s\n", string(msg.Key)) + fmt.Printf("Value:\t%s\n", string(msg.Value)) + fmt.Println() + } + }() + + wg.Wait() + logger.Println("Done consuming topic", *topic) + close(messages) + + if err := c.Close(); err != nil { + logger.Println("Failed to close consumer: ", err) + } +} + +func getPartitions(c sarama.Consumer) ([]int32, error) { + if *partitions == "all" { + return c.Partitions(*topic) + } + + tmp := strings.Split(*partitions, ",") + var pList []int32 + for i := range tmp { + val, err := strconv.ParseInt(tmp[i], 10, 32) + if err != nil { + return nil, err + } + pList = append(pList, int32(val)) + } + + return pList, nil +} + +func printErrorAndExit(code int, format string, values ...interface{}) { + fmt.Fprintf(os.Stderr, "ERROR: %s\n", fmt.Sprintf(format, values...)) + fmt.Fprintln(os.Stderr) + os.Exit(code) +} + +func printUsageErrorAndExit(format string, values ...interface{}) { + fmt.Fprintf(os.Stderr, "ERROR: %s\n", fmt.Sprintf(format, values...)) + fmt.Fprintln(os.Stderr) + fmt.Fprintln(os.Stderr, "Available command line options:") + flag.PrintDefaults() + os.Exit(64) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-partitionconsumer/.gitignore b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-partitionconsumer/.gitignore new file mode 100644 index 0000000..5837fe8 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-partitionconsumer/.gitignore @@ -0,0 +1,2 @@ +kafka-console-partitionconsumer +kafka-console-partitionconsumer.test diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-partitionconsumer/README.md b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-partitionconsumer/README.md new file mode 100644 index 0000000..646dd5f --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-partitionconsumer/README.md @@ -0,0 +1,28 @@ +# kafka-console-partitionconsumer + +NOTE: this tool is deprecated in favour of the more general and more powerful +`kafka-console-consumer`. + +A simple command line tool to consume a partition of a topic and print the messages +on the standard output. + +### Installation + + go get github.com/Shopify/sarama/tools/kafka-console-partitionconsumer + +### Usage + + # Minimum invocation + kafka-console-partitionconsumer -topic=test -partition=4 -brokers=kafka1:9092 + + # It will pick up a KAFKA_PEERS environment variable + export KAFKA_PEERS=kafka1:9092,kafka2:9092,kafka3:9092 + kafka-console-partitionconsumer -topic=test -partition=4 + + # You can specify the offset you want to start at. It can be either + # `oldest`, `newest`, or a specific offset number + kafka-console-partitionconsumer -topic=test -partition=3 -offset=oldest + kafka-console-partitionconsumer -topic=test -partition=2 -offset=1337 + + # Display all command line options + kafka-console-partitionconsumer -help diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-partitionconsumer/kafka-console-partitionconsumer.go b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-partitionconsumer/kafka-console-partitionconsumer.go new file mode 100644 index 0000000..d5e4464 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-partitionconsumer/kafka-console-partitionconsumer.go @@ -0,0 +1,102 @@ +package main + +import ( + "flag" + "fmt" + "log" + "os" + "os/signal" + "strconv" + "strings" + + "github.com/Shopify/sarama" +) + +var ( + brokerList = flag.String("brokers", os.Getenv("KAFKA_PEERS"), "The comma separated list of brokers in the Kafka cluster") + topic = flag.String("topic", "", "REQUIRED: the topic to consume") + partition = flag.Int("partition", -1, "REQUIRED: the partition to consume") + offset = flag.String("offset", "newest", "The offset to start with. Can be `oldest`, `newest`, or an actual offset") + verbose = flag.Bool("verbose", false, "Whether to turn on sarama logging") + + logger = log.New(os.Stderr, "", log.LstdFlags) +) + +func main() { + flag.Parse() + + if *brokerList == "" { + printUsageErrorAndExit("You have to provide -brokers as a comma-separated list, or set the KAFKA_PEERS environment variable.") + } + + if *topic == "" { + printUsageErrorAndExit("-topic is required") + } + + if *partition == -1 { + printUsageErrorAndExit("-partition is required") + } + + if *verbose { + sarama.Logger = logger + } + + var ( + initialOffset int64 + offsetError error + ) + switch *offset { + case "oldest": + initialOffset = sarama.OffsetOldest + case "newest": + initialOffset = sarama.OffsetNewest + default: + initialOffset, offsetError = strconv.ParseInt(*offset, 10, 64) + } + + if offsetError != nil { + printUsageErrorAndExit("Invalid initial offset: %s", *offset) + } + + c, err := sarama.NewConsumer(strings.Split(*brokerList, ","), nil) + if err != nil { + printErrorAndExit(69, "Failed to start consumer: %s", err) + } + + pc, err := c.ConsumePartition(*topic, int32(*partition), initialOffset) + if err != nil { + printErrorAndExit(69, "Failed to start partition consumer: %s", err) + } + + go func() { + signals := make(chan os.Signal, 1) + signal.Notify(signals, os.Kill, os.Interrupt) + <-signals + pc.AsyncClose() + }() + + for msg := range pc.Messages() { + fmt.Printf("Offset:\t%d\n", msg.Offset) + fmt.Printf("Key:\t%s\n", string(msg.Key)) + fmt.Printf("Value:\t%s\n", string(msg.Value)) + fmt.Println() + } + + if err := c.Close(); err != nil { + logger.Println("Failed to close consumer: ", err) + } +} + +func printErrorAndExit(code int, format string, values ...interface{}) { + fmt.Fprintf(os.Stderr, "ERROR: %s\n", fmt.Sprintf(format, values...)) + fmt.Fprintln(os.Stderr) + os.Exit(code) +} + +func printUsageErrorAndExit(format string, values ...interface{}) { + fmt.Fprintf(os.Stderr, "ERROR: %s\n", fmt.Sprintf(format, values...)) + fmt.Fprintln(os.Stderr) + fmt.Fprintln(os.Stderr, "Available command line options:") + flag.PrintDefaults() + os.Exit(64) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-producer/.gitignore b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-producer/.gitignore new file mode 100644 index 0000000..2b9e563 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-producer/.gitignore @@ -0,0 +1,2 @@ +kafka-console-producer +kafka-console-producer.test diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-producer/README.md b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-producer/README.md new file mode 100644 index 0000000..6b3a65f --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-producer/README.md @@ -0,0 +1,34 @@ +# kafka-console-producer + +A simple command line tool to produce a single message to Kafka. + +### Installation + + go get github.com/Shopify/sarama/tools/kafka-console-producer + + +### Usage + + # Minimum invocation + kafka-console-producer -topic=test -value=value -brokers=kafka1:9092 + + # It will pick up a KAFKA_PEERS environment variable + export KAFKA_PEERS=kafka1:9092,kafka2:9092,kafka3:9092 + kafka-console-producer -topic=test -value=value + + # It will read the value from stdin by using pipes + echo "hello world" | kafka-console-producer -topic=test + + # Specify a key: + echo "hello world" | kafka-console-producer -topic=test -key=key + + # Partitioning: by default, kafka-console-producer will partition as follows: + # - manual partitioning if a -partition is provided + # - hash partitioning by key if a -key is provided + # - random partioning otherwise. + # + # You can override this using the -partitioner argument: + echo "hello world" | kafka-console-producer -topic=test -key=key -partitioner=random + + # Display all command line options + kafka-console-producer -help diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-producer/kafka-console-producer.go b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-producer/kafka-console-producer.go new file mode 100644 index 0000000..6a1765d --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/tools/kafka-console-producer/kafka-console-producer.go @@ -0,0 +1,118 @@ +package main + +import ( + "flag" + "fmt" + "io/ioutil" + "log" + "os" + "strings" + + "github.com/Shopify/sarama" +) + +var ( + brokerList = flag.String("brokers", os.Getenv("KAFKA_PEERS"), "The comma separated list of brokers in the Kafka cluster. You can also set the KAFKA_PEERS environment variable") + topic = flag.String("topic", "", "REQUIRED: the topic to produce to") + key = flag.String("key", "", "The key of the message to produce. Can be empty.") + value = flag.String("value", "", "REQUIRED: the value of the message to produce. You can also provide the value on stdin.") + partitioner = flag.String("partitioner", "", "The partitioning scheme to use. Can be `hash`, `manual`, or `random`") + partition = flag.Int("partition", -1, "The partition to produce to.") + verbose = flag.Bool("verbose", false, "Turn on sarama logging to stderr") + silent = flag.Bool("silent", false, "Turn off printing the message's topic, partition, and offset to stdout") + + logger = log.New(os.Stderr, "", log.LstdFlags) +) + +func main() { + flag.Parse() + + if *brokerList == "" { + printUsageErrorAndExit("no -brokers specified. Alternatively, set the KAFKA_PEERS environment variable") + } + + if *topic == "" { + printUsageErrorAndExit("no -topic specified") + } + + if *verbose { + sarama.Logger = logger + } + + config := sarama.NewConfig() + config.Producer.RequiredAcks = sarama.WaitForAll + + switch *partitioner { + case "": + if *partition >= 0 { + config.Producer.Partitioner = sarama.NewManualPartitioner + } else { + config.Producer.Partitioner = sarama.NewHashPartitioner + } + case "hash": + config.Producer.Partitioner = sarama.NewHashPartitioner + case "random": + config.Producer.Partitioner = sarama.NewRandomPartitioner + case "manual": + config.Producer.Partitioner = sarama.NewManualPartitioner + if *partition == -1 { + printUsageErrorAndExit("-partition is required when partitioning manually") + } + default: + printUsageErrorAndExit(fmt.Sprintf("Partitioner %s not supported.", *partitioner)) + } + + message := &sarama.ProducerMessage{Topic: *topic, Partition: int32(*partition)} + + if *key != "" { + message.Key = sarama.StringEncoder(*key) + } + + if *value != "" { + message.Value = sarama.StringEncoder(*value) + } else if stdinAvailable() { + bytes, err := ioutil.ReadAll(os.Stdin) + if err != nil { + printErrorAndExit(66, "Failed to read data from the standard input: %s", err) + } + message.Value = sarama.ByteEncoder(bytes) + } else { + printUsageErrorAndExit("-value is required, or you have to provide the value on stdin") + } + + producer, err := sarama.NewSyncProducer(strings.Split(*brokerList, ","), config) + if err != nil { + printErrorAndExit(69, "Failed to open Kafka producer: %s", err) + } + defer func() { + if err := producer.Close(); err != nil { + logger.Println("Failed to close Kafka producer cleanly:", err) + } + }() + + partition, offset, err := producer.SendMessage(message) + if err != nil { + printErrorAndExit(69, "Failed to produce message: %s", err) + } else if !*silent { + fmt.Printf("topic=%s\tpartition=%d\toffset=%d\n", *topic, partition, offset) + } +} + +func printErrorAndExit(code int, format string, values ...interface{}) { + fmt.Fprintf(os.Stderr, "ERROR: %s\n", fmt.Sprintf(format, values...)) + fmt.Fprintln(os.Stderr) + os.Exit(code) +} + +func printUsageErrorAndExit(message string) { + fmt.Fprintln(os.Stderr, "ERROR:", message) + fmt.Fprintln(os.Stderr) + fmt.Fprintln(os.Stderr, "Available command line options:") + flag.PrintDefaults() + os.Exit(64) +} + +func stdinAvailable() bool { + stat, _ := os.Stdin.Stat() + return (stat.Mode() & os.ModeCharDevice) == 0 +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/utils.go b/Godeps/_workspace/src/github.com/Shopify/sarama/utils.go new file mode 100644 index 0000000..fef7c73 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/utils.go @@ -0,0 +1,89 @@ +package sarama + +import "sort" + +type none struct{} + +// make []int32 sortable so we can sort partition numbers +type int32Slice []int32 + +func (slice int32Slice) Len() int { + return len(slice) +} + +func (slice int32Slice) Less(i, j int) bool { + return slice[i] < slice[j] +} + +func (slice int32Slice) Swap(i, j int) { + slice[i], slice[j] = slice[j], slice[i] +} + +func dupeAndSort(input []int32) []int32 { + ret := make([]int32, 0, len(input)) + for _, val := range input { + ret = append(ret, val) + } + + sort.Sort(int32Slice(ret)) + return ret +} + +func withRecover(fn func()) { + defer func() { + handler := PanicHandler + if handler != nil { + if err := recover(); err != nil { + handler(err) + } + } + }() + + fn() +} + +func safeAsyncClose(b *Broker) { + tmp := b // local var prevents clobbering in goroutine + go withRecover(func() { + if connected, _ := tmp.Connected(); connected { + if err := tmp.Close(); err != nil { + Logger.Println("Error closing broker", tmp.ID(), ":", err) + } + } + }) +} + +// Encoder is a simple interface for any type that can be encoded as an array of bytes +// in order to be sent as the key or value of a Kafka message. Length() is provided as an +// optimization, and must return the same as len() on the result of Encode(). +type Encoder interface { + Encode() ([]byte, error) + Length() int +} + +// make strings and byte slices encodable for convenience so they can be used as keys +// and/or values in kafka messages + +// StringEncoder implements the Encoder interface for Go strings so that they can be used +// as the Key or Value in a ProducerMessage. +type StringEncoder string + +func (s StringEncoder) Encode() ([]byte, error) { + return []byte(s), nil +} + +func (s StringEncoder) Length() int { + return len(s) +} + +// ByteEncoder implements the Encoder interface for Go byte slices so that they can be used +// as the Key or Value in a ProducerMessage. +type ByteEncoder []byte + +func (b ByteEncoder) Encode() ([]byte, error) { + return b, nil +} + +func (b ByteEncoder) Length() int { + return len(b) +} diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/vagrant/boot_cluster.sh b/Godeps/_workspace/src/github.com/Shopify/sarama/vagrant/boot_cluster.sh new file mode 100644 index 0000000..95e47dd --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/vagrant/boot_cluster.sh @@ -0,0 +1,22 @@ +#!/bin/sh + +set -ex + +# Launch and wait for toxiproxy +${REPOSITORY_ROOT}/vagrant/run_toxiproxy.sh & +while ! nc -q 1 localhost 2181 ${KAFKA_INSTALL_ROOT}/zookeeper-${ZK_PORT}/myid +done diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/vagrant/kafka.conf b/Godeps/_workspace/src/github.com/Shopify/sarama/vagrant/kafka.conf new file mode 100644 index 0000000..d975de4 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/vagrant/kafka.conf @@ -0,0 +1,5 @@ +start on started zookeeper-ZK_PORT +stop on stopping zookeeper-ZK_PORT + +pre-start exec sleep 2 +exec /opt/kafka-KAFKAID/bin/kafka-server-start.sh /opt/kafka-KAFKAID/config/server.properties diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/vagrant/provision.sh b/Godeps/_workspace/src/github.com/Shopify/sarama/vagrant/provision.sh new file mode 100644 index 0000000..b1e429f --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/vagrant/provision.sh @@ -0,0 +1,15 @@ +#!/bin/sh + +set -ex + +apt-get update +yes | apt-get install default-jre + +export KAFKA_INSTALL_ROOT=/opt +export KAFKA_HOSTNAME=192.168.100.67 +export KAFKA_VERSION=0.9.0.0 +export REPOSITORY_ROOT=/vagrant + +sh /vagrant/vagrant/install_cluster.sh +sh /vagrant/vagrant/setup_services.sh +sh /vagrant/vagrant/create_topics.sh diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/vagrant/run_toxiproxy.sh b/Godeps/_workspace/src/github.com/Shopify/sarama/vagrant/run_toxiproxy.sh new file mode 100644 index 0000000..e52c00e --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/vagrant/run_toxiproxy.sh @@ -0,0 +1,22 @@ +#!/bin/sh + +set -ex + +${KAFKA_INSTALL_ROOT}/toxiproxy -port 8474 -host 0.0.0.0 & +PID=$! + +while ! nc -q 1 localhost 8474 + +# The number of threads handling network requests +num.network.threads=2 + +# The number of threads doing disk I/O +num.io.threads=8 + +# The send buffer (SO_SNDBUF) used by the socket server +socket.send.buffer.bytes=1048576 + +# The receive buffer (SO_RCVBUF) used by the socket server +socket.receive.buffer.bytes=1048576 + +# The maximum size of a request that the socket server will accept (protection against OOM) +socket.request.max.bytes=104857600 + + +############################# Log Basics ############################# + +# A comma seperated list of directories under which to store log files +log.dirs=KAFKA_DATADIR + +# The default number of log partitions per topic. More partitions allow greater +# parallelism for consumption, but this will also result in more files across +# the brokers. +num.partitions=2 + +# Create new topics with a replication factor of 2 so failover can be tested +# more easily. +default.replication.factor=2 + +auto.create.topics.enable=false +delete.topic.enable=true + +############################# Log Flush Policy ############################# + +# Messages are immediately written to the filesystem but by default we only fsync() to sync +# the OS cache lazily. The following configurations control the flush of data to disk. +# There are a few important trade-offs here: +# 1. Durability: Unflushed data may be lost if you are not using replication. +# 2. Latency: Very large flush intervals may lead to latency spikes when the flush does occur as there will be a lot of data to flush. +# 3. Throughput: The flush is generally the most expensive operation, and a small flush interval may lead to exceessive seeks. +# The settings below allow one to configure the flush policy to flush data after a period of time or +# every N messages (or both). This can be done globally and overridden on a per-topic basis. + +# The number of messages to accept before forcing a flush of data to disk +#log.flush.interval.messages=10000 + +# The maximum amount of time a message can sit in a log before we force a flush +#log.flush.interval.ms=1000 + +############################# Log Retention Policy ############################# + +# The following configurations control the disposal of log segments. The policy can +# be set to delete segments after a period of time, or after a given size has accumulated. +# A segment will be deleted whenever *either* of these criteria are met. Deletion always happens +# from the end of the log. + +# The minimum age of a log file to be eligible for deletion +log.retention.hours=168 + +# A size-based retention policy for logs. Segments are pruned from the log as long as the remaining +# segments don't drop below log.retention.bytes. +log.retention.bytes=268435456 + +# The maximum size of a log segment file. When this size is reached a new log segment will be created. +log.segment.bytes=268435456 + +# The interval at which log segments are checked to see if they can be deleted according +# to the retention policies +log.retention.check.interval.ms=60000 + +# By default the log cleaner is disabled and the log retention policy will default to just delete segments after their retention expires. +# If log.cleaner.enable=true is set the cleaner will be enabled and individual logs can then be marked for log compaction. +log.cleaner.enable=false + +############################# Zookeeper ############################# + +# Zookeeper connection string (see zookeeper docs for details). +# This is a comma separated host:port pairs, each corresponding to a zk +# server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002". +# You can also append an optional chroot string to the urls to specify the +# root directory for all kafka znodes. +zookeeper.connect=localhost:ZK_PORT + +# Timeout in ms for connecting to zookeeper +zookeeper.session.timeout.ms=3000 +zookeeper.connection.timeout.ms=3000 diff --git a/Godeps/_workspace/src/github.com/Shopify/sarama/vagrant/setup_services.sh b/Godeps/_workspace/src/github.com/Shopify/sarama/vagrant/setup_services.sh new file mode 100644 index 0000000..81d8ea0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Shopify/sarama/vagrant/setup_services.sh @@ -0,0 +1,29 @@ +#!/bin/sh + +set -ex + +stop toxiproxy || true +cp ${REPOSITORY_ROOT}/vagrant/toxiproxy.conf /etc/init/toxiproxy.conf +cp ${REPOSITORY_ROOT}/vagrant/run_toxiproxy.sh ${KAFKA_INSTALL_ROOT}/ +start toxiproxy + +for i in 1 2 3 4 5; do + ZK_PORT=`expr $i + 2180` + KAFKA_PORT=`expr $i + 9090` + + stop zookeeper-${ZK_PORT} || true + + # set up zk service + cp ${REPOSITORY_ROOT}/vagrant/zookeeper.conf /etc/init/zookeeper-${ZK_PORT}.conf + sed -i s/KAFKAID/${KAFKA_PORT}/g /etc/init/zookeeper-${ZK_PORT}.conf + + # set up kafka service + cp ${REPOSITORY_ROOT}/vagrant/kafka.conf /etc/init/kafka-${KAFKA_PORT}.conf + sed -i s/KAFKAID/${KAFKA_PORT}/g /etc/init/kafka-${KAFKA_PORT}.conf + sed -i s/ZK_PORT/${ZK_PORT}/g /etc/init/kafka-${KAFKA_PORT}.conf + + start zookeeper-${ZK_PORT} +done + +# Wait for the last kafka node to finish booting +while ! nc -q 1 localhost 29095  [![Build Status](https://travis-ci.org/Sirupsen/logrus.svg?branch=master)](https://travis-ci.org/Sirupsen/logrus) [![godoc reference](https://godoc.org/github.com/Sirupsen/logrus?status.png)][godoc] + +Logrus is a structured logger for Go (golang), completely API compatible with +the standard library logger. [Godoc][godoc]. **Please note the Logrus API is not +yet stable (pre 1.0). Logrus itself is completely stable and has been used in +many large deployments. The core API is unlikely to change much but please +version control your Logrus to make sure you aren't fetching latest `master` on +every build.** + +Nicely color-coded in development (when a TTY is attached, otherwise just +plain text): + +![Colored](http://i.imgur.com/PY7qMwd.png) + +With `log.Formatter = new(logrus.JSONFormatter)`, for easy parsing by logstash +or Splunk: + +```json +{"animal":"walrus","level":"info","msg":"A group of walrus emerges from the +ocean","size":10,"time":"2014-03-10 19:57:38.562264131 -0400 EDT"} + +{"level":"warning","msg":"The group's number increased tremendously!", +"number":122,"omg":true,"time":"2014-03-10 19:57:38.562471297 -0400 EDT"} + +{"animal":"walrus","level":"info","msg":"A giant walrus appears!", +"size":10,"time":"2014-03-10 19:57:38.562500591 -0400 EDT"} + +{"animal":"walrus","level":"info","msg":"Tremendously sized cow enters the ocean.", +"size":9,"time":"2014-03-10 19:57:38.562527896 -0400 EDT"} + +{"level":"fatal","msg":"The ice breaks!","number":100,"omg":true, +"time":"2014-03-10 19:57:38.562543128 -0400 EDT"} +``` + +With the default `log.Formatter = new(logrus.TextFormatter)` when a TTY is not +attached, the output is compatible with the +[logfmt](http://godoc.org/github.com/kr/logfmt) format: + +```text +time="2015-03-26T01:27:38-04:00" level=debug msg="Started observing beach" animal=walrus number=8 +time="2015-03-26T01:27:38-04:00" level=info msg="A group of walrus emerges from the ocean" animal=walrus size=10 +time="2015-03-26T01:27:38-04:00" level=warning msg="The group's number increased tremendously!" number=122 omg=true +time="2015-03-26T01:27:38-04:00" level=debug msg="Temperature changes" temperature=-4 +time="2015-03-26T01:27:38-04:00" level=panic msg="It's over 9000!" animal=orca size=9009 +time="2015-03-26T01:27:38-04:00" level=fatal msg="The ice breaks!" err=&{0x2082280c0 map[animal:orca size:9009] 2015-03-26 01:27:38.441574009 -0400 EDT panic It's over 9000!} number=100 omg=true +exit status 1 +``` + +#### Example + +The simplest way to use Logrus is simply the package-level exported logger: + +```go +package main + +import ( + log "github.com/Sirupsen/logrus" +) + +func main() { + log.WithFields(log.Fields{ + "animal": "walrus", + }).Info("A walrus appears") +} +``` + +Note that it's completely api-compatible with the stdlib logger, so you can +replace your `log` imports everywhere with `log "github.com/Sirupsen/logrus"` +and you'll now have the flexibility of Logrus. You can customize it all you +want: + +```go +package main + +import ( + "os" + log "github.com/Sirupsen/logrus" + "github.com/Sirupsen/logrus/hooks/airbrake" +) + +func init() { + // Log as JSON instead of the default ASCII formatter. + log.SetFormatter(&log.JSONFormatter{}) + + // Use the Airbrake hook to report errors that have Error severity or above to + // an exception tracker. You can create custom hooks, see the Hooks section. + log.AddHook(airbrake.NewHook("https://example.com", "xyz", "development")) + + // Output to stderr instead of stdout, could also be a file. + log.SetOutput(os.Stderr) + + // Only log the warning severity or above. + log.SetLevel(log.WarnLevel) +} + +func main() { + log.WithFields(log.Fields{ + "animal": "walrus", + "size": 10, + }).Info("A group of walrus emerges from the ocean") + + log.WithFields(log.Fields{ + "omg": true, + "number": 122, + }).Warn("The group's number increased tremendously!") + + log.WithFields(log.Fields{ + "omg": true, + "number": 100, + }).Fatal("The ice breaks!") + + // A common pattern is to re-use fields between logging statements by re-using + // the logrus.Entry returned from WithFields() + contextLogger := log.WithFields(log.Fields{ + "common": "this is a common field", + "other": "I also should be logged always", + }) + + contextLogger.Info("I'll be logged with common and other field") + contextLogger.Info("Me too") +} +``` + +For more advanced usage such as logging to multiple locations from the same +application, you can also create an instance of the `logrus` Logger: + +```go +package main + +import ( + "github.com/Sirupsen/logrus" +) + +// Create a new instance of the logger. You can have any number of instances. +var log = logrus.New() + +func main() { + // The API for setting attributes is a little different than the package level + // exported logger. See Godoc. + log.Out = os.Stderr + + log.WithFields(logrus.Fields{ + "animal": "walrus", + "size": 10, + }).Info("A group of walrus emerges from the ocean") +} +``` + +#### Fields + +Logrus encourages careful, structured logging though logging fields instead of +long, unparseable error messages. For example, instead of: `log.Fatalf("Failed +to send event %s to topic %s with key %d")`, you should log the much more +discoverable: + +```go +log.WithFields(log.Fields{ + "event": event, + "topic": topic, + "key": key, +}).Fatal("Failed to send event") +``` + +We've found this API forces you to think about logging in a way that produces +much more useful logging messages. We've been in countless situations where just +a single added field to a log statement that was already there would've saved us +hours. The `WithFields` call is optional. + +In general, with Logrus using any of the `printf`-family functions should be +seen as a hint you should add a field, however, you can still use the +`printf`-family functions with Logrus. + +#### Hooks + +You can add hooks for logging levels. For example to send errors to an exception +tracking service on `Error`, `Fatal` and `Panic`, info to StatsD or log to +multiple places simultaneously, e.g. syslog. + +Logrus comes with [built-in hooks](hooks/). Add those, or your custom hook, in +`init`: + +```go +import ( + log "github.com/Sirupsen/logrus" + "github.com/Sirupsen/logrus/hooks/airbrake" + "github.com/Sirupsen/logrus/hooks/syslog" + "log/syslog" +) + +func init() { + log.AddHook(airbrake.NewHook("https://example.com", "xyz", "development")) + + hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "") + if err != nil { + log.Error("Unable to connect to local syslog daemon") + } else { + log.AddHook(hook) + } +} +``` + + +| Hook | Description | +| ----- | ----------- | +| [Airbrake](https://github.com/Sirupsen/logrus/blob/master/hooks/airbrake/airbrake.go) | Send errors to an exception tracking service compatible with the Airbrake API. Uses [`airbrake-go`](https://github.com/tobi/airbrake-go) behind the scenes. | +| [Papertrail](https://github.com/Sirupsen/logrus/blob/master/hooks/papertrail/papertrail.go) | Send errors to the Papertrail hosted logging service via UDP. | +| [Syslog](https://github.com/Sirupsen/logrus/blob/master/hooks/syslog/syslog.go) | Send errors to remote syslog server. Uses standard library `log/syslog` behind the scenes. | +| [BugSnag](https://github.com/Sirupsen/logrus/blob/master/hooks/bugsnag/bugsnag.go) | Send errors to the Bugsnag exception tracking service. | +| [Hiprus](https://github.com/nubo/hiprus) | Send errors to a channel in hipchat. | +| [Logrusly](https://github.com/sebest/logrusly) | Send logs to [Loggly](https://www.loggly.com/) | +| [Slackrus](https://github.com/johntdyer/slackrus) | Hook for Slack chat. | +| [Journalhook](https://github.com/wercker/journalhook) | Hook for logging to `systemd-journald` | +| [Graylog](https://github.com/gemnasium/logrus-hooks/tree/master/graylog) | Hook for logging to [Graylog](http://graylog2.org/) | + +#### Level logging + +Logrus has six logging levels: Debug, Info, Warning, Error, Fatal and Panic. + +```go +log.Debug("Useful debugging information.") +log.Info("Something noteworthy happened!") +log.Warn("You should probably take a look at this.") +log.Error("Something failed but I'm not quitting.") +// Calls os.Exit(1) after logging +log.Fatal("Bye.") +// Calls panic() after logging +log.Panic("I'm bailing.") +``` + +You can set the logging level on a `Logger`, then it will only log entries with +that severity or anything above it: + +```go +// Will log anything that is info or above (warn, error, fatal, panic). Default. +log.SetLevel(log.InfoLevel) +``` + +It may be useful to set `log.Level = logrus.DebugLevel` in a debug or verbose +environment if your application has that. + +#### Entries + +Besides the fields added with `WithField` or `WithFields` some fields are +automatically added to all logging events: + +1. `time`. The timestamp when the entry was created. +2. `msg`. The logging message passed to `{Info,Warn,Error,Fatal,Panic}` after + the `AddFields` call. E.g. `Failed to send event.` +3. `level`. The logging level. E.g. `info`. + +#### Environments + +Logrus has no notion of environment. + +If you wish for hooks and formatters to only be used in specific environments, +you should handle that yourself. For example, if your application has a global +variable `Environment`, which is a string representation of the environment you +could do: + +```go +import ( + log "github.com/Sirupsen/logrus" +) + +init() { + // do something here to set environment depending on an environment variable + // or command-line flag + if Environment == "production" { + log.SetFormatter(logrus.JSONFormatter) + } else { + // The TextFormatter is default, you don't actually have to do this. + log.SetFormatter(logrus.TextFormatter) + } +} +``` + +This configuration is how `logrus` was intended to be used, but JSON in +production is mostly only useful if you do log aggregation with tools like +Splunk or Logstash. + +#### Formatters + +The built-in logging formatters are: + +* `logrus.TextFormatter`. Logs the event in colors if stdout is a tty, otherwise + without colors. + * *Note:* to force colored output when there is no TTY, set the `ForceColors` + field to `true`. To force no colored output even if there is a TTY set the + `DisableColors` field to `true` +* `logrus.JSONFormatter`. Logs fields as JSON. +* `logrus_logstash.LogstashFormatter`. Logs fields as Logstash Events (http://logstash.net). + + ```go + logrus.SetFormatter(&logrus_logstash.LogstashFormatter{Type: “application_name"}) + ``` + +Third party logging formatters: + +* [`zalgo`](https://github.com/aybabtme/logzalgo): invoking the P͉̫o̳̼̊w̖͈̰͎e̬͔̭͂r͚̼̹̲ ̫͓͉̳͈ō̠͕͖̚f̝͍̠ ͕̲̞͖͑Z̖̫̤̫ͪa͉̬͈̗l͖͎g̳̥o̰̥̅!̣͔̲̻͊̄ ̙̘̦̹̦. + +You can define your formatter by implementing the `Formatter` interface, +requiring a `Format` method. `Format` takes an `*Entry`. `entry.Data` is a +`Fields` type (`map[string]interface{}`) with all your fields as well as the +default ones (see Entries section above): + +```go +type MyJSONFormatter struct { +} + +log.SetFormatter(new(MyJSONFormatter)) + +func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) { + // Note this doesn't include Time, Level and Message which are available on + // the Entry. Consult `godoc` on information about those fields or read the + // source of the official loggers. + serialized, err := json.Marshal(entry.Data) + if err != nil { + return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err) + } + return append(serialized, '\n'), nil +} +``` + +#### Logger as an `io.Writer` + +Logrus can be transormed into an `io.Writer`. That writer is the end of an `io.Pipe` and it is your responsibility to close it. + +```go +w := logger.Writer() +defer w.Close() + +srv := http.Server{ + // create a stdlib log.Logger that writes to + // logrus.Logger. + ErrorLog: log.New(w, "", 0), +} +``` + +Each line written to that writer will be printed the usual way, using formatters +and hooks. The level for those entries is `info`. + +#### Rotation + +Log rotation is not provided with Logrus. Log rotation should be done by an +external program (like `logrotate(8)`) that can compress and delete old log +entries. It should not be a feature of the application-level logger. + + +[godoc]: https://godoc.org/github.com/Sirupsen/logrus diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/entry.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/entry.go new file mode 100644 index 0000000..17fe6f7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/entry.go @@ -0,0 +1,252 @@ +package logrus + +import ( + "bytes" + "fmt" + "io" + "os" + "time" +) + +// An entry is the final or intermediate Logrus logging entry. It contains all +// the fields passed with WithField{,s}. It's finally logged when Debug, Info, +// Warn, Error, Fatal or Panic is called on it. These objects can be reused and +// passed around as much as you wish to avoid field duplication. +type Entry struct { + Logger *Logger + + // Contains all the fields set by the user. + Data Fields + + // Time at which the log entry was created + Time time.Time + + // Level the log entry was logged at: Debug, Info, Warn, Error, Fatal or Panic + Level Level + + // Message passed to Debug, Info, Warn, Error, Fatal or Panic + Message string +} + +func NewEntry(logger *Logger) *Entry { + return &Entry{ + Logger: logger, + // Default is three fields, give a little extra room + Data: make(Fields, 5), + } +} + +// Returns a reader for the entry, which is a proxy to the formatter. +func (entry *Entry) Reader() (*bytes.Buffer, error) { + serialized, err := entry.Logger.Formatter.Format(entry) + return bytes.NewBuffer(serialized), err +} + +// Returns the string representation from the reader and ultimately the +// formatter. +func (entry *Entry) String() (string, error) { + reader, err := entry.Reader() + if err != nil { + return "", err + } + + return reader.String(), err +} + +// Add a single field to the Entry. +func (entry *Entry) WithField(key string, value interface{}) *Entry { + return entry.WithFields(Fields{key: value}) +} + +// Add a map of fields to the Entry. +func (entry *Entry) WithFields(fields Fields) *Entry { + data := Fields{} + for k, v := range entry.Data { + data[k] = v + } + for k, v := range fields { + data[k] = v + } + return &Entry{Logger: entry.Logger, Data: data} +} + +func (entry *Entry) log(level Level, msg string) { + entry.Time = time.Now() + entry.Level = level + entry.Message = msg + + if err := entry.Logger.Hooks.Fire(level, entry); err != nil { + entry.Logger.mu.Lock() + fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err) + entry.Logger.mu.Unlock() + } + + reader, err := entry.Reader() + if err != nil { + entry.Logger.mu.Lock() + fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err) + entry.Logger.mu.Unlock() + } + + entry.Logger.mu.Lock() + defer entry.Logger.mu.Unlock() + + _, err = io.Copy(entry.Logger.Out, reader) + if err != nil { + fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err) + } + + // To avoid Entry#log() returning a value that only would make sense for + // panic() to use in Entry#Panic(), we avoid the allocation by checking + // directly here. + if level <= PanicLevel { + panic(entry) + } +} + +func (entry *Entry) Debug(args ...interface{}) { + if entry.Logger.Level >= DebugLevel { + entry.log(DebugLevel, fmt.Sprint(args...)) + } +} + +func (entry *Entry) Print(args ...interface{}) { + entry.Info(args...) +} + +func (entry *Entry) Info(args ...interface{}) { + if entry.Logger.Level >= InfoLevel { + entry.log(InfoLevel, fmt.Sprint(args...)) + } +} + +func (entry *Entry) Warn(args ...interface{}) { + if entry.Logger.Level >= WarnLevel { + entry.log(WarnLevel, fmt.Sprint(args...)) + } +} + +func (entry *Entry) Warning(args ...interface{}) { + entry.Warn(args...) +} + +func (entry *Entry) Error(args ...interface{}) { + if entry.Logger.Level >= ErrorLevel { + entry.log(ErrorLevel, fmt.Sprint(args...)) + } +} + +func (entry *Entry) Fatal(args ...interface{}) { + if entry.Logger.Level >= FatalLevel { + entry.log(FatalLevel, fmt.Sprint(args...)) + } + os.Exit(1) +} + +func (entry *Entry) Panic(args ...interface{}) { + if entry.Logger.Level >= PanicLevel { + entry.log(PanicLevel, fmt.Sprint(args...)) + } + panic(fmt.Sprint(args...)) +} + +// Entry Printf family functions + +func (entry *Entry) Debugf(format string, args ...interface{}) { + if entry.Logger.Level >= DebugLevel { + entry.Debug(fmt.Sprintf(format, args...)) + } +} + +func (entry *Entry) Infof(format string, args ...interface{}) { + if entry.Logger.Level >= InfoLevel { + entry.Info(fmt.Sprintf(format, args...)) + } +} + +func (entry *Entry) Printf(format string, args ...interface{}) { + entry.Infof(format, args...) +} + +func (entry *Entry) Warnf(format string, args ...interface{}) { + if entry.Logger.Level >= WarnLevel { + entry.Warn(fmt.Sprintf(format, args...)) + } +} + +func (entry *Entry) Warningf(format string, args ...interface{}) { + entry.Warnf(format, args...) +} + +func (entry *Entry) Errorf(format string, args ...interface{}) { + if entry.Logger.Level >= ErrorLevel { + entry.Error(fmt.Sprintf(format, args...)) + } +} + +func (entry *Entry) Fatalf(format string, args ...interface{}) { + if entry.Logger.Level >= FatalLevel { + entry.Fatal(fmt.Sprintf(format, args...)) + } +} + +func (entry *Entry) Panicf(format string, args ...interface{}) { + if entry.Logger.Level >= PanicLevel { + entry.Panic(fmt.Sprintf(format, args...)) + } +} + +// Entry Println family functions + +func (entry *Entry) Debugln(args ...interface{}) { + if entry.Logger.Level >= DebugLevel { + entry.Debug(entry.sprintlnn(args...)) + } +} + +func (entry *Entry) Infoln(args ...interface{}) { + if entry.Logger.Level >= InfoLevel { + entry.Info(entry.sprintlnn(args...)) + } +} + +func (entry *Entry) Println(args ...interface{}) { + entry.Infoln(args...) +} + +func (entry *Entry) Warnln(args ...interface{}) { + if entry.Logger.Level >= WarnLevel { + entry.Warn(entry.sprintlnn(args...)) + } +} + +func (entry *Entry) Warningln(args ...interface{}) { + entry.Warnln(args...) +} + +func (entry *Entry) Errorln(args ...interface{}) { + if entry.Logger.Level >= ErrorLevel { + entry.Error(entry.sprintlnn(args...)) + } +} + +func (entry *Entry) Fatalln(args ...interface{}) { + if entry.Logger.Level >= FatalLevel { + entry.Fatal(entry.sprintlnn(args...)) + } +} + +func (entry *Entry) Panicln(args ...interface{}) { + if entry.Logger.Level >= PanicLevel { + entry.Panic(entry.sprintlnn(args...)) + } +} + +// Sprintlnn => Sprint no newline. This is to get the behavior of how +// fmt.Sprintln where spaces are always added between operands, regardless of +// their type. Instead of vendoring the Sprintln implementation to spare a +// string allocation, we do the simplest thing. +func (entry *Entry) sprintlnn(args ...interface{}) string { + msg := fmt.Sprintln(args...) + return msg[:len(msg)-1] +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/examples/basic/basic.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/examples/basic/basic.go new file mode 100644 index 0000000..a1623ec --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/examples/basic/basic.go @@ -0,0 +1,50 @@ +package main + +import ( + "github.com/Sirupsen/logrus" +) + +var log = logrus.New() + +func init() { + log.Formatter = new(logrus.JSONFormatter) + log.Formatter = new(logrus.TextFormatter) // default + log.Level = logrus.DebugLevel +} + +func main() { + defer func() { + err := recover() + if err != nil { + log.WithFields(logrus.Fields{ + "omg": true, + "err": err, + "number": 100, + }).Fatal("The ice breaks!") + } + }() + + log.WithFields(logrus.Fields{ + "animal": "walrus", + "number": 8, + }).Debug("Started observing beach") + + log.WithFields(logrus.Fields{ + "animal": "walrus", + "size": 10, + }).Info("A group of walrus emerges from the ocean") + + log.WithFields(logrus.Fields{ + "omg": true, + "number": 122, + }).Warn("The group's number increased tremendously!") + + log.WithFields(logrus.Fields{ + "temperature": -4, + }).Debug("Temperature changes") + + log.WithFields(logrus.Fields{ + "animal": "orca", + "size": 9009, + }).Panic("It's over 9000!") +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/examples/hook/hook.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/examples/hook/hook.go new file mode 100644 index 0000000..cb5759a --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/examples/hook/hook.go @@ -0,0 +1,30 @@ +package main + +import ( + "github.com/Sirupsen/logrus" + "github.com/Sirupsen/logrus/hooks/airbrake" +) + +var log = logrus.New() + +func init() { + log.Formatter = new(logrus.TextFormatter) // default + log.Hooks.Add(airbrake.NewHook("https://example.com", "xyz", "development")) +} + +func main() { + log.WithFields(logrus.Fields{ + "animal": "walrus", + "size": 10, + }).Info("A group of walrus emerges from the ocean") + + log.WithFields(logrus.Fields{ + "omg": true, + "number": 122, + }).Warn("The group's number increased tremendously!") + + log.WithFields(logrus.Fields{ + "omg": true, + "number": 100, + }).Fatal("The ice breaks!") +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/exported.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/exported.go new file mode 100644 index 0000000..a67e1b8 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/exported.go @@ -0,0 +1,188 @@ +package logrus + +import ( + "io" +) + +var ( + // std is the name of the standard logger in stdlib `log` + std = New() +) + +func StandardLogger() *Logger { + return std +} + +// SetOutput sets the standard logger output. +func SetOutput(out io.Writer) { + std.mu.Lock() + defer std.mu.Unlock() + std.Out = out +} + +// SetFormatter sets the standard logger formatter. +func SetFormatter(formatter Formatter) { + std.mu.Lock() + defer std.mu.Unlock() + std.Formatter = formatter +} + +// SetLevel sets the standard logger level. +func SetLevel(level Level) { + std.mu.Lock() + defer std.mu.Unlock() + std.Level = level +} + +// GetLevel returns the standard logger level. +func GetLevel() Level { + std.mu.Lock() + defer std.mu.Unlock() + return std.Level +} + +// AddHook adds a hook to the standard logger hooks. +func AddHook(hook Hook) { + std.mu.Lock() + defer std.mu.Unlock() + std.Hooks.Add(hook) +} + +// WithField creates an entry from the standard logger and adds a field to +// it. If you want multiple fields, use `WithFields`. +// +// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal +// or Panic on the Entry it returns. +func WithField(key string, value interface{}) *Entry { + return std.WithField(key, value) +} + +// WithFields creates an entry from the standard logger and adds multiple +// fields to it. This is simply a helper for `WithField`, invoking it +// once for each field. +// +// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal +// or Panic on the Entry it returns. +func WithFields(fields Fields) *Entry { + return std.WithFields(fields) +} + +// Debug logs a message at level Debug on the standard logger. +func Debug(args ...interface{}) { + std.Debug(args...) +} + +// Print logs a message at level Info on the standard logger. +func Print(args ...interface{}) { + std.Print(args...) +} + +// Info logs a message at level Info on the standard logger. +func Info(args ...interface{}) { + std.Info(args...) +} + +// Warn logs a message at level Warn on the standard logger. +func Warn(args ...interface{}) { + std.Warn(args...) +} + +// Warning logs a message at level Warn on the standard logger. +func Warning(args ...interface{}) { + std.Warning(args...) +} + +// Error logs a message at level Error on the standard logger. +func Error(args ...interface{}) { + std.Error(args...) +} + +// Panic logs a message at level Panic on the standard logger. +func Panic(args ...interface{}) { + std.Panic(args...) +} + +// Fatal logs a message at level Fatal on the standard logger. +func Fatal(args ...interface{}) { + std.Fatal(args...) +} + +// Debugf logs a message at level Debug on the standard logger. +func Debugf(format string, args ...interface{}) { + std.Debugf(format, args...) +} + +// Printf logs a message at level Info on the standard logger. +func Printf(format string, args ...interface{}) { + std.Printf(format, args...) +} + +// Infof logs a message at level Info on the standard logger. +func Infof(format string, args ...interface{}) { + std.Infof(format, args...) +} + +// Warnf logs a message at level Warn on the standard logger. +func Warnf(format string, args ...interface{}) { + std.Warnf(format, args...) +} + +// Warningf logs a message at level Warn on the standard logger. +func Warningf(format string, args ...interface{}) { + std.Warningf(format, args...) +} + +// Errorf logs a message at level Error on the standard logger. +func Errorf(format string, args ...interface{}) { + std.Errorf(format, args...) +} + +// Panicf logs a message at level Panic on the standard logger. +func Panicf(format string, args ...interface{}) { + std.Panicf(format, args...) +} + +// Fatalf logs a message at level Fatal on the standard logger. +func Fatalf(format string, args ...interface{}) { + std.Fatalf(format, args...) +} + +// Debugln logs a message at level Debug on the standard logger. +func Debugln(args ...interface{}) { + std.Debugln(args...) +} + +// Println logs a message at level Info on the standard logger. +func Println(args ...interface{}) { + std.Println(args...) +} + +// Infoln logs a message at level Info on the standard logger. +func Infoln(args ...interface{}) { + std.Infoln(args...) +} + +// Warnln logs a message at level Warn on the standard logger. +func Warnln(args ...interface{}) { + std.Warnln(args...) +} + +// Warningln logs a message at level Warn on the standard logger. +func Warningln(args ...interface{}) { + std.Warningln(args...) +} + +// Errorln logs a message at level Error on the standard logger. +func Errorln(args ...interface{}) { + std.Errorln(args...) +} + +// Panicln logs a message at level Panic on the standard logger. +func Panicln(args ...interface{}) { + std.Panicln(args...) +} + +// Fatalln logs a message at level Fatal on the standard logger. +func Fatalln(args ...interface{}) { + std.Fatalln(args...) +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/formatter.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/formatter.go new file mode 100644 index 0000000..104d689 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/formatter.go @@ -0,0 +1,48 @@ +package logrus + +import "time" + +const DefaultTimestampFormat = time.RFC3339 + +// The Formatter interface is used to implement a custom Formatter. It takes an +// `Entry`. It exposes all the fields, including the default ones: +// +// * `entry.Data["msg"]`. The message passed from Info, Warn, Error .. +// * `entry.Data["time"]`. The timestamp. +// * `entry.Data["level"]. The level the entry was logged at. +// +// Any additional fields added with `WithField` or `WithFields` are also in +// `entry.Data`. Format is expected to return an array of bytes which are then +// logged to `logger.Out`. +type Formatter interface { + Format(*Entry) ([]byte, error) +} + +// This is to not silently overwrite `time`, `msg` and `level` fields when +// dumping it. If this code wasn't there doing: +// +// logrus.WithField("level", 1).Info("hello") +// +// Would just silently drop the user provided level. Instead with this code +// it'll logged as: +// +// {"level": "info", "fields.level": 1, "msg": "hello", "time": "..."} +// +// It's not exported because it's still using Data in an opinionated way. It's to +// avoid code duplication between the two default formatters. +func prefixFieldClashes(data Fields) { + _, ok := data["time"] + if ok { + data["fields.time"] = data["time"] + } + + _, ok = data["msg"] + if ok { + data["fields.msg"] = data["msg"] + } + + _, ok = data["level"] + if ok { + data["fields.level"] = data["level"] + } +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/formatters/logstash/logstash.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/formatters/logstash/logstash.go new file mode 100644 index 0000000..8ea93dd --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/formatters/logstash/logstash.go @@ -0,0 +1,56 @@ +package logstash + +import ( + "encoding/json" + "fmt" + + "github.com/Sirupsen/logrus" +) + +// Formatter generates json in logstash format. +// Logstash site: http://logstash.net/ +type LogstashFormatter struct { + Type string // if not empty use for logstash type field. + + // TimestampFormat sets the format used for timestamps. + TimestampFormat string +} + +func (f *LogstashFormatter) Format(entry *logrus.Entry) ([]byte, error) { + entry.Data["@version"] = 1 + + if f.TimestampFormat == "" { + f.TimestampFormat = logrus.DefaultTimestampFormat + } + + entry.Data["@timestamp"] = entry.Time.Format(f.TimestampFormat) + + // set message field + v, ok := entry.Data["message"] + if ok { + entry.Data["fields.message"] = v + } + entry.Data["message"] = entry.Message + + // set level field + v, ok = entry.Data["level"] + if ok { + entry.Data["fields.level"] = v + } + entry.Data["level"] = entry.Level.String() + + // set type field + if f.Type != "" { + v, ok = entry.Data["type"] + if ok { + entry.Data["fields.type"] = v + } + entry.Data["type"] = f.Type + } + + serialized, err := json.Marshal(entry.Data) + if err != nil { + return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err) + } + return append(serialized, '\n'), nil +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks.go new file mode 100644 index 0000000..0da2b36 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks.go @@ -0,0 +1,34 @@ +package logrus + +// A hook to be fired when logging on the logging levels returned from +// `Levels()` on your implementation of the interface. Note that this is not +// fired in a goroutine or a channel with workers, you should handle such +// functionality yourself if your call is non-blocking and you don't wish for +// the logging calls for levels returned from `Levels()` to block. +type Hook interface { + Levels() []Level + Fire(*Entry) error +} + +// Internal type for storing the hooks on a logger instance. +type levelHooks map[Level][]Hook + +// Add a hook to an instance of logger. This is called with +// `log.Hooks.Add(new(MyHook))` where `MyHook` implements the `Hook` interface. +func (hooks levelHooks) Add(hook Hook) { + for _, level := range hook.Levels() { + hooks[level] = append(hooks[level], hook) + } +} + +// Fire all the hooks for the passed level. Used by `entry.log` to fire +// appropriate hooks for a log entry. +func (hooks levelHooks) Fire(level Level, entry *Entry) error { + for _, hook := range hooks[level] { + if err := hook.Fire(entry); err != nil { + return err + } + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/airbrake/airbrake.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/airbrake/airbrake.go new file mode 100644 index 0000000..b0502c3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/airbrake/airbrake.go @@ -0,0 +1,54 @@ +package airbrake + +import ( + "errors" + "fmt" + + "github.com/Sirupsen/logrus" + "github.com/tobi/airbrake-go" +) + +// AirbrakeHook to send exceptions to an exception-tracking service compatible +// with the Airbrake API. +type airbrakeHook struct { + APIKey string + Endpoint string + Environment string +} + +func NewHook(endpoint, apiKey, env string) *airbrakeHook { + return &airbrakeHook{ + APIKey: apiKey, + Endpoint: endpoint, + Environment: env, + } +} + +func (hook *airbrakeHook) Fire(entry *logrus.Entry) error { + airbrake.ApiKey = hook.APIKey + airbrake.Endpoint = hook.Endpoint + airbrake.Environment = hook.Environment + + var notifyErr error + err, ok := entry.Data["error"].(error) + if ok { + notifyErr = err + } else { + notifyErr = errors.New(entry.Message) + } + + airErr := airbrake.Notify(notifyErr) + if airErr != nil { + return fmt.Errorf("Failed to send error to Airbrake: %s", airErr) + } + + return nil +} + +func (hook *airbrakeHook) Levels() []logrus.Level { + return []logrus.Level{ + logrus.ErrorLevel, + logrus.FatalLevel, + logrus.PanicLevel, + } +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/bugsnag/bugsnag.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/bugsnag/bugsnag.go new file mode 100644 index 0000000..d20a0f5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/bugsnag/bugsnag.go @@ -0,0 +1,68 @@ +package logrus_bugsnag + +import ( + "errors" + + "github.com/Sirupsen/logrus" + "github.com/bugsnag/bugsnag-go" +) + +type bugsnagHook struct{} + +// ErrBugsnagUnconfigured is returned if NewBugsnagHook is called before +// bugsnag.Configure. Bugsnag must be configured before the hook. +var ErrBugsnagUnconfigured = errors.New("bugsnag must be configured before installing this logrus hook") + +// ErrBugsnagSendFailed indicates that the hook failed to submit an error to +// bugsnag. The error was successfully generated, but `bugsnag.Notify()` +// failed. +type ErrBugsnagSendFailed struct { + err error +} + +func (e ErrBugsnagSendFailed) Error() string { + return "failed to send error to Bugsnag: " + e.err.Error() +} + +// NewBugsnagHook initializes a logrus hook which sends exceptions to an +// exception-tracking service compatible with the Bugsnag API. Before using +// this hook, you must call bugsnag.Configure(). The returned object should be +// registered with a log via `AddHook()` +// +// Entries that trigger an Error, Fatal or Panic should now include an "error" +// field to send to Bugsnag. +func NewBugsnagHook() (*bugsnagHook, error) { + if bugsnag.Config.APIKey == "" { + return nil, ErrBugsnagUnconfigured + } + return &bugsnagHook{}, nil +} + +// Fire forwards an error to Bugsnag. Given a logrus.Entry, it extracts the +// "error" field (or the Message if the error isn't present) and sends it off. +func (hook *bugsnagHook) Fire(entry *logrus.Entry) error { + var notifyErr error + err, ok := entry.Data["error"].(error) + if ok { + notifyErr = err + } else { + notifyErr = errors.New(entry.Message) + } + + bugsnagErr := bugsnag.Notify(notifyErr) + if bugsnagErr != nil { + return ErrBugsnagSendFailed{bugsnagErr} + } + + return nil +} + +// Levels enumerates the log levels on which the error should be forwarded to +// bugsnag: everything at or above the "Error" level. +func (hook *bugsnagHook) Levels() []logrus.Level { + return []logrus.Level{ + logrus.ErrorLevel, + logrus.FatalLevel, + logrus.PanicLevel, + } +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/papertrail/README.md b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/papertrail/README.md new file mode 100644 index 0000000..ae61e92 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/papertrail/README.md @@ -0,0 +1,28 @@ +# Papertrail Hook for Logrus :walrus: + +[Papertrail](https://papertrailapp.com) provides hosted log management. Once stored in Papertrail, you can [group](http://help.papertrailapp.com/kb/how-it-works/groups/) your logs on various dimensions, [search](http://help.papertrailapp.com/kb/how-it-works/search-syntax) them, and trigger [alerts](http://help.papertrailapp.com/kb/how-it-works/alerts). + +In most deployments, you'll want to send logs to Papertrail via their [remote_syslog](http://help.papertrailapp.com/kb/configuration/configuring-centralized-logging-from-text-log-files-in-unix/) daemon, which requires no application-specific configuration. This hook is intended for relatively low-volume logging, likely in managed cloud hosting deployments where installing `remote_syslog` is not possible. + +## Usage + +You can find your Papertrail UDP port on your [Papertrail account page](https://papertrailapp.com/account/destinations). Substitute it below for `YOUR_PAPERTRAIL_UDP_PORT`. + +For `YOUR_APP_NAME`, substitute a short string that will readily identify your application or service in the logs. + +```go +import ( + "log/syslog" + "github.com/Sirupsen/logrus" + "github.com/Sirupsen/logrus/hooks/papertrail" +) + +func main() { + log := logrus.New() + hook, err := logrus_papertrail.NewPapertrailHook("logs.papertrailapp.com", YOUR_PAPERTRAIL_UDP_PORT, YOUR_APP_NAME) + + if err == nil { + log.Hooks.Add(hook) + } +} +``` diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/papertrail/papertrail.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/papertrail/papertrail.go new file mode 100644 index 0000000..c0f10c1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/papertrail/papertrail.go @@ -0,0 +1,55 @@ +package logrus_papertrail + +import ( + "fmt" + "net" + "os" + "time" + + "github.com/Sirupsen/logrus" +) + +const ( + format = "Jan 2 15:04:05" +) + +// PapertrailHook to send logs to a logging service compatible with the Papertrail API. +type PapertrailHook struct { + Host string + Port int + AppName string + UDPConn net.Conn +} + +// NewPapertrailHook creates a hook to be added to an instance of logger. +func NewPapertrailHook(host string, port int, appName string) (*PapertrailHook, error) { + conn, err := net.Dial("udp", fmt.Sprintf("%s:%d", host, port)) + return &PapertrailHook{host, port, appName, conn}, err +} + +// Fire is called when a log event is fired. +func (hook *PapertrailHook) Fire(entry *logrus.Entry) error { + date := time.Now().Format(format) + msg, _ := entry.String() + payload := fmt.Sprintf("<22> %s %s: %s", date, hook.AppName, msg) + + bytesWritten, err := hook.UDPConn.Write([]byte(payload)) + if err != nil { + fmt.Fprintf(os.Stderr, "Unable to send log line to Papertrail via UDP. Wrote %d bytes before error: %v", bytesWritten, err) + return err + } + + return nil +} + +// Levels returns the available logging levels. +func (hook *PapertrailHook) Levels() []logrus.Level { + return []logrus.Level{ + logrus.PanicLevel, + logrus.FatalLevel, + logrus.ErrorLevel, + logrus.WarnLevel, + logrus.InfoLevel, + logrus.DebugLevel, + } +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/sentry/README.md b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/sentry/README.md new file mode 100644 index 0000000..19e58bb --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/sentry/README.md @@ -0,0 +1,61 @@ +# Sentry Hook for Logrus :walrus: + +[Sentry](https://getsentry.com) provides both self-hosted and hosted +solutions for exception tracking. +Both client and server are +[open source](https://github.com/getsentry/sentry). + +## Usage + +Every sentry application defined on the server gets a different +[DSN](https://www.getsentry.com/docs/). In the example below replace +`YOUR_DSN` with the one created for your application. + +```go +import ( + "github.com/Sirupsen/logrus" + "github.com/Sirupsen/logrus/hooks/sentry" +) + +func main() { + log := logrus.New() + hook, err := logrus_sentry.NewSentryHook(YOUR_DSN, []logrus.Level{ + logrus.PanicLevel, + logrus.FatalLevel, + logrus.ErrorLevel, + }) + + if err == nil { + log.Hooks.Add(hook) + } +} +``` + +## Special fields + +Some logrus fields have a special meaning in this hook, +these are server_name and logger. +When logs are sent to sentry these fields are treated differently. +- server_name (also known as hostname) is the name of the server which +is logging the event (hostname.example.com) +- logger is the part of the application which is logging the event. +In go this usually means setting it to the name of the package. + +## Timeout + +`Timeout` is the time the sentry hook will wait for a response +from the sentry server. + +If this time elapses with no response from +the server an error will be returned. + +If `Timeout` is set to 0 the SentryHook will not wait for a reply +and will assume a correct delivery. + +The SentryHook has a default timeout of `100 milliseconds` when created +with a call to `NewSentryHook`. This can be changed by assigning a value to the `Timeout` field: + +```go +hook, _ := logrus_sentry.NewSentryHook(...) +hook.Timeout = 20*time.Second +``` diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/sentry/sentry.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/sentry/sentry.go new file mode 100644 index 0000000..379f281 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/sentry/sentry.go @@ -0,0 +1,100 @@ +package logrus_sentry + +import ( + "fmt" + "time" + + "github.com/Sirupsen/logrus" + "github.com/getsentry/raven-go" +) + +var ( + severityMap = map[logrus.Level]raven.Severity{ + logrus.DebugLevel: raven.DEBUG, + logrus.InfoLevel: raven.INFO, + logrus.WarnLevel: raven.WARNING, + logrus.ErrorLevel: raven.ERROR, + logrus.FatalLevel: raven.FATAL, + logrus.PanicLevel: raven.FATAL, + } +) + +func getAndDel(d logrus.Fields, key string) (string, bool) { + var ( + ok bool + v interface{} + val string + ) + if v, ok = d[key]; !ok { + return "", false + } + + if val, ok = v.(string); !ok { + return "", false + } + delete(d, key) + return val, true +} + +// SentryHook delivers logs to a sentry server. +type SentryHook struct { + // Timeout sets the time to wait for a delivery error from the sentry server. + // If this is set to zero the server will not wait for any response and will + // consider the message correctly sent + Timeout time.Duration + + client *raven.Client + levels []logrus.Level +} + +// NewSentryHook creates a hook to be added to an instance of logger +// and initializes the raven client. +// This method sets the timeout to 100 milliseconds. +func NewSentryHook(DSN string, levels []logrus.Level) (*SentryHook, error) { + client, err := raven.NewClient(DSN, nil) + if err != nil { + return nil, err + } + return &SentryHook{100 * time.Millisecond, client, levels}, nil +} + +// Called when an event should be sent to sentry +// Special fields that sentry uses to give more information to the server +// are extracted from entry.Data (if they are found) +// These fields are: logger and server_name +func (hook *SentryHook) Fire(entry *logrus.Entry) error { + packet := &raven.Packet{ + Message: entry.Message, + Timestamp: raven.Timestamp(entry.Time), + Level: severityMap[entry.Level], + Platform: "go", + } + + d := entry.Data + + if logger, ok := getAndDel(d, "logger"); ok { + packet.Logger = logger + } + if serverName, ok := getAndDel(d, "server_name"); ok { + packet.ServerName = serverName + } + packet.Extra = map[string]interface{}(d) + + _, errCh := hook.client.Capture(packet, nil) + timeout := hook.Timeout + if timeout != 0 { + timeoutCh := time.After(timeout) + select { + case err := <-errCh: + return err + case <-timeoutCh: + return fmt.Errorf("no response from sentry server in %s", timeout) + } + } + return nil +} + +// Levels returns the available logging levels. +func (hook *SentryHook) Levels() []logrus.Level { + return hook.levels +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/syslog/README.md b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/syslog/README.md new file mode 100644 index 0000000..4dbb8e7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/syslog/README.md @@ -0,0 +1,20 @@ +# Syslog Hooks for Logrus :walrus: + +## Usage + +```go +import ( + "log/syslog" + "github.com/Sirupsen/logrus" + logrus_syslog "github.com/Sirupsen/logrus/hooks/syslog" +) + +func main() { + log := logrus.New() + hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "") + + if err == nil { + log.Hooks.Add(hook) + } +} +``` diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/syslog/syslog.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/syslog/syslog.go new file mode 100644 index 0000000..b6fa374 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/hooks/syslog/syslog.go @@ -0,0 +1,59 @@ +package logrus_syslog + +import ( + "fmt" + "github.com/Sirupsen/logrus" + "log/syslog" + "os" +) + +// SyslogHook to send logs via syslog. +type SyslogHook struct { + Writer *syslog.Writer + SyslogNetwork string + SyslogRaddr string +} + +// Creates a hook to be added to an instance of logger. This is called with +// `hook, err := NewSyslogHook("udp", "localhost:514", syslog.LOG_DEBUG, "")` +// `if err == nil { log.Hooks.Add(hook) }` +func NewSyslogHook(network, raddr string, priority syslog.Priority, tag string) (*SyslogHook, error) { + w, err := syslog.Dial(network, raddr, priority, tag) + return &SyslogHook{w, network, raddr}, err +} + +func (hook *SyslogHook) Fire(entry *logrus.Entry) error { + line, err := entry.String() + if err != nil { + fmt.Fprintf(os.Stderr, "Unable to read entry, %v", err) + return err + } + + switch entry.Level { + case logrus.PanicLevel: + return hook.Writer.Crit(line) + case logrus.FatalLevel: + return hook.Writer.Crit(line) + case logrus.ErrorLevel: + return hook.Writer.Err(line) + case logrus.WarnLevel: + return hook.Writer.Warning(line) + case logrus.InfoLevel: + return hook.Writer.Info(line) + case logrus.DebugLevel: + return hook.Writer.Debug(line) + default: + return nil + } +} + +func (hook *SyslogHook) Levels() []logrus.Level { + return []logrus.Level{ + logrus.PanicLevel, + logrus.FatalLevel, + logrus.ErrorLevel, + logrus.WarnLevel, + logrus.InfoLevel, + logrus.DebugLevel, + } +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/json_formatter.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/json_formatter.go new file mode 100644 index 0000000..dcc4f1d --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/json_formatter.go @@ -0,0 +1,40 @@ +package logrus + +import ( + "encoding/json" + "fmt" +) + +type JSONFormatter struct { + // TimestampFormat sets the format used for marshaling timestamps. + TimestampFormat string +} + +func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) { + data := make(Fields, len(entry.Data)+3) + for k, v := range entry.Data { + switch v := v.(type) { + case error: + // Otherwise errors are ignored by `encoding/json` + // https://github.com/Sirupsen/logrus/issues/137 + data[k] = v.Error() + default: + data[k] = v + } + } + prefixFieldClashes(data) + + if f.TimestampFormat == "" { + f.TimestampFormat = DefaultTimestampFormat + } + + data["time"] = entry.Time.Format(f.TimestampFormat) + data["msg"] = entry.Message + data["level"] = entry.Level.String() + + serialized, err := json.Marshal(data) + if err != nil { + return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err) + } + return append(serialized, '\n'), nil +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/logger.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/logger.go new file mode 100644 index 0000000..da928a3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/logger.go @@ -0,0 +1,203 @@ +package logrus + +import ( + "io" + "os" + "sync" +) + +type Logger struct { + // The logs are `io.Copy`'d to this in a mutex. It's common to set this to a + // file, or leave it default which is `os.Stdout`. You can also set this to + // something more adventorous, such as logging to Kafka. + Out io.Writer + // Hooks for the logger instance. These allow firing events based on logging + // levels and log entries. For example, to send errors to an error tracking + // service, log to StatsD or dump the core on fatal errors. + Hooks levelHooks + // All log entries pass through the formatter before logged to Out. The + // included formatters are `TextFormatter` and `JSONFormatter` for which + // TextFormatter is the default. In development (when a TTY is attached) it + // logs with colors, but to a file it wouldn't. You can easily implement your + // own that implements the `Formatter` interface, see the `README` or included + // formatters for examples. + Formatter Formatter + // The logging level the logger should log at. This is typically (and defaults + // to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be + // logged. `logrus.Debug` is useful in + Level Level + // Used to sync writing to the log. + mu sync.Mutex +} + +// Creates a new logger. Configuration should be set by changing `Formatter`, +// `Out` and `Hooks` directly on the default logger instance. You can also just +// instantiate your own: +// +// var log = &Logger{ +// Out: os.Stderr, +// Formatter: new(JSONFormatter), +// Hooks: make(levelHooks), +// Level: logrus.DebugLevel, +// } +// +// It's recommended to make this a global instance called `log`. +func New() *Logger { + return &Logger{ + Out: os.Stdout, + Formatter: new(TextFormatter), + Hooks: make(levelHooks), + Level: InfoLevel, + } +} + +// Adds a field to the log entry, note that you it doesn't log until you call +// Debug, Print, Info, Warn, Fatal or Panic. It only creates a log entry. +// Ff you want multiple fields, use `WithFields`. +func (logger *Logger) WithField(key string, value interface{}) *Entry { + return NewEntry(logger).WithField(key, value) +} + +// Adds a struct of fields to the log entry. All it does is call `WithField` for +// each `Field`. +func (logger *Logger) WithFields(fields Fields) *Entry { + return NewEntry(logger).WithFields(fields) +} + +func (logger *Logger) Debugf(format string, args ...interface{}) { + if logger.Level >= DebugLevel { + NewEntry(logger).Debugf(format, args...) + } +} + +func (logger *Logger) Infof(format string, args ...interface{}) { + if logger.Level >= InfoLevel { + NewEntry(logger).Infof(format, args...) + } +} + +func (logger *Logger) Printf(format string, args ...interface{}) { + NewEntry(logger).Printf(format, args...) +} + +func (logger *Logger) Warnf(format string, args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warnf(format, args...) + } +} + +func (logger *Logger) Warningf(format string, args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warnf(format, args...) + } +} + +func (logger *Logger) Errorf(format string, args ...interface{}) { + if logger.Level >= ErrorLevel { + NewEntry(logger).Errorf(format, args...) + } +} + +func (logger *Logger) Fatalf(format string, args ...interface{}) { + if logger.Level >= FatalLevel { + NewEntry(logger).Fatalf(format, args...) + } +} + +func (logger *Logger) Panicf(format string, args ...interface{}) { + if logger.Level >= PanicLevel { + NewEntry(logger).Panicf(format, args...) + } +} + +func (logger *Logger) Debug(args ...interface{}) { + if logger.Level >= DebugLevel { + NewEntry(logger).Debug(args...) + } +} + +func (logger *Logger) Info(args ...interface{}) { + if logger.Level >= InfoLevel { + NewEntry(logger).Info(args...) + } +} + +func (logger *Logger) Print(args ...interface{}) { + NewEntry(logger).Info(args...) +} + +func (logger *Logger) Warn(args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warn(args...) + } +} + +func (logger *Logger) Warning(args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warn(args...) + } +} + +func (logger *Logger) Error(args ...interface{}) { + if logger.Level >= ErrorLevel { + NewEntry(logger).Error(args...) + } +} + +func (logger *Logger) Fatal(args ...interface{}) { + if logger.Level >= FatalLevel { + NewEntry(logger).Fatal(args...) + } +} + +func (logger *Logger) Panic(args ...interface{}) { + if logger.Level >= PanicLevel { + NewEntry(logger).Panic(args...) + } +} + +func (logger *Logger) Debugln(args ...interface{}) { + if logger.Level >= DebugLevel { + NewEntry(logger).Debugln(args...) + } +} + +func (logger *Logger) Infoln(args ...interface{}) { + if logger.Level >= InfoLevel { + NewEntry(logger).Infoln(args...) + } +} + +func (logger *Logger) Println(args ...interface{}) { + NewEntry(logger).Println(args...) +} + +func (logger *Logger) Warnln(args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warnln(args...) + } +} + +func (logger *Logger) Warningln(args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warnln(args...) + } +} + +func (logger *Logger) Errorln(args ...interface{}) { + if logger.Level >= ErrorLevel { + NewEntry(logger).Errorln(args...) + } +} + +func (logger *Logger) Fatalln(args ...interface{}) { + if logger.Level >= FatalLevel { + NewEntry(logger).Fatalln(args...) + } +} + +func (logger *Logger) Panicln(args ...interface{}) { + if logger.Level >= PanicLevel { + NewEntry(logger).Panicln(args...) + } +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/logrus.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/logrus.go new file mode 100644 index 0000000..43ee12e --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/logrus.go @@ -0,0 +1,94 @@ +package logrus + +import ( + "fmt" + "log" +) + +// Fields type, used to pass to `WithFields`. +type Fields map[string]interface{} + +// Level type +type Level uint8 + +// Convert the Level to a string. E.g. PanicLevel becomes "panic". +func (level Level) String() string { + switch level { + case DebugLevel: + return "debug" + case InfoLevel: + return "info" + case WarnLevel: + return "warning" + case ErrorLevel: + return "error" + case FatalLevel: + return "fatal" + case PanicLevel: + return "panic" + } + + return "unknown" +} + +// ParseLevel takes a string level and returns the Logrus log level constant. +func ParseLevel(lvl string) (Level, error) { + switch lvl { + case "panic": + return PanicLevel, nil + case "fatal": + return FatalLevel, nil + case "error": + return ErrorLevel, nil + case "warn", "warning": + return WarnLevel, nil + case "info": + return InfoLevel, nil + case "debug": + return DebugLevel, nil + } + + var l Level + return l, fmt.Errorf("not a valid logrus Level: %q", lvl) +} + +// These are the different logging levels. You can set the logging level to log +// on your instance of logger, obtained with `logrus.New()`. +const ( + // PanicLevel level, highest level of severity. Logs and then calls panic with the + // message passed to Debug, Info, ... + PanicLevel Level = iota + // FatalLevel level. Logs and then calls `os.Exit(1)`. It will exit even if the + // logging level is set to Panic. + FatalLevel + // ErrorLevel level. Logs. Used for errors that should definitely be noted. + // Commonly used for hooks to send errors to an error tracking service. + ErrorLevel + // WarnLevel level. Non-critical entries that deserve eyes. + WarnLevel + // InfoLevel level. General operational entries about what's going on inside the + // application. + InfoLevel + // DebugLevel level. Usually only enabled when debugging. Very verbose logging. + DebugLevel +) + +// Won't compile if StdLogger can't be realized by a log.Logger +var _ StdLogger = &log.Logger{} + +// StdLogger is what your logrus-enabled library should take, that way +// it'll accept a stdlib logger and a logrus logger. There's no standard +// interface, this is the closest we get, unfortunately. +type StdLogger interface { + Print(...interface{}) + Printf(string, ...interface{}) + Println(...interface{}) + + Fatal(...interface{}) + Fatalf(string, ...interface{}) + Fatalln(...interface{}) + + Panic(...interface{}) + Panicf(string, ...interface{}) + Panicln(...interface{}) +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_darwin.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_darwin.go new file mode 100644 index 0000000..8fe02a4 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_darwin.go @@ -0,0 +1,12 @@ +// Based on ssh/terminal: +// Copyright 2013 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package logrus + +import "syscall" + +const ioctlReadTermios = syscall.TIOCGETA + +type Termios syscall.Termios diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_freebsd.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_freebsd.go new file mode 100644 index 0000000..0428ee5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_freebsd.go @@ -0,0 +1,20 @@ +/* + Go 1.2 doesn't include Termios for FreeBSD. This should be added in 1.3 and this could be merged with terminal_darwin. +*/ +package logrus + +import ( + "syscall" +) + +const ioctlReadTermios = syscall.TIOCGETA + +type Termios struct { + Iflag uint32 + Oflag uint32 + Cflag uint32 + Lflag uint32 + Cc [20]uint8 + Ispeed uint32 + Ospeed uint32 +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_linux.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_linux.go new file mode 100644 index 0000000..a2c0b40 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_linux.go @@ -0,0 +1,12 @@ +// Based on ssh/terminal: +// Copyright 2013 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package logrus + +import "syscall" + +const ioctlReadTermios = syscall.TCGETS + +type Termios syscall.Termios diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_notwindows.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_notwindows.go new file mode 100644 index 0000000..b8bebc1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_notwindows.go @@ -0,0 +1,21 @@ +// Based on ssh/terminal: +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build linux darwin freebsd openbsd + +package logrus + +import ( + "syscall" + "unsafe" +) + +// IsTerminal returns true if the given file descriptor is a terminal. +func IsTerminal() bool { + fd := syscall.Stdout + var termios Termios + _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0) + return err == 0 +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_openbsd.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_openbsd.go new file mode 100644 index 0000000..af609a5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_openbsd.go @@ -0,0 +1,7 @@ +package logrus + +import "syscall" + +const ioctlReadTermios = syscall.TIOCGETA + +type Termios syscall.Termios diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_windows.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_windows.go new file mode 100644 index 0000000..2e09f6f --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/terminal_windows.go @@ -0,0 +1,27 @@ +// Based on ssh/terminal: +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build windows + +package logrus + +import ( + "syscall" + "unsafe" +) + +var kernel32 = syscall.NewLazyDLL("kernel32.dll") + +var ( + procGetConsoleMode = kernel32.NewProc("GetConsoleMode") +) + +// IsTerminal returns true if the given file descriptor is a terminal. +func IsTerminal() bool { + fd := syscall.Stdout + var st uint32 + r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(fd), uintptr(unsafe.Pointer(&st)), 0) + return r != 0 && e == 0 +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/text_formatter.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/text_formatter.go new file mode 100644 index 0000000..612417f --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/text_formatter.go @@ -0,0 +1,149 @@ +package logrus + +import ( + "bytes" + "fmt" + "sort" + "strings" + "time" +) + +const ( + nocolor = 0 + red = 31 + green = 32 + yellow = 33 + blue = 34 + gray = 37 +) + +var ( + baseTimestamp time.Time + isTerminal bool +) + +func init() { + baseTimestamp = time.Now() + isTerminal = IsTerminal() +} + +func miniTS() int { + return int(time.Since(baseTimestamp) / time.Second) +} + +type TextFormatter struct { + // Set to true to bypass checking for a TTY before outputting colors. + ForceColors bool + + // Force disabling colors. + DisableColors bool + + // Disable timestamp logging. useful when output is redirected to logging + // system that already adds timestamps. + DisableTimestamp bool + + // Enable logging the full timestamp when a TTY is attached instead of just + // the time passed since beginning of execution. + FullTimestamp bool + + // TimestampFormat to use for display when a full timestamp is printed + TimestampFormat string + + // The fields are sorted by default for a consistent output. For applications + // that log extremely frequently and don't use the JSON formatter this may not + // be desired. + DisableSorting bool +} + +func (f *TextFormatter) Format(entry *Entry) ([]byte, error) { + var keys []string = make([]string, 0, len(entry.Data)) + for k := range entry.Data { + keys = append(keys, k) + } + + if !f.DisableSorting { + sort.Strings(keys) + } + + b := &bytes.Buffer{} + + prefixFieldClashes(entry.Data) + + isColored := (f.ForceColors || isTerminal) && !f.DisableColors + + if f.TimestampFormat == "" { + f.TimestampFormat = DefaultTimestampFormat + } + if isColored { + f.printColored(b, entry, keys) + } else { + if !f.DisableTimestamp { + f.appendKeyValue(b, "time", entry.Time.Format(f.TimestampFormat)) + } + f.appendKeyValue(b, "level", entry.Level.String()) + f.appendKeyValue(b, "msg", entry.Message) + for _, key := range keys { + f.appendKeyValue(b, key, entry.Data[key]) + } + } + + b.WriteByte('\n') + return b.Bytes(), nil +} + +func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []string) { + var levelColor int + switch entry.Level { + case DebugLevel: + levelColor = gray + case WarnLevel: + levelColor = yellow + case ErrorLevel, FatalLevel, PanicLevel: + levelColor = red + default: + levelColor = blue + } + + levelText := strings.ToUpper(entry.Level.String())[0:4] + + if !f.FullTimestamp { + fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, miniTS(), entry.Message) + } else { + fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ", levelColor, levelText, entry.Time.Format(f.TimestampFormat), entry.Message) + } + for _, k := range keys { + v := entry.Data[k] + fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=%v", levelColor, k, v) + } +} + +func needsQuoting(text string) bool { + for _, ch := range text { + if !((ch >= 'a' && ch <= 'z') || + (ch >= 'A' && ch <= 'Z') || + (ch >= '0' && ch <= '9') || + ch == '-' || ch == '.') { + return false + } + } + return true +} + +func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key, value interface{}) { + switch value.(type) { + case string: + if needsQuoting(value.(string)) { + fmt.Fprintf(b, "%v=%s ", key, value) + } else { + fmt.Fprintf(b, "%v=%q ", key, value) + } + case error: + if needsQuoting(value.(error).Error()) { + fmt.Fprintf(b, "%v=%s ", key, value) + } else { + fmt.Fprintf(b, "%v=%q ", key, value) + } + default: + fmt.Fprintf(b, "%v=%v ", key, value) + } +} diff --git a/Godeps/_workspace/src/github.com/Sirupsen/logrus/writer.go b/Godeps/_workspace/src/github.com/Sirupsen/logrus/writer.go new file mode 100644 index 0000000..1e30b1c --- /dev/null +++ b/Godeps/_workspace/src/github.com/Sirupsen/logrus/writer.go @@ -0,0 +1,31 @@ +package logrus + +import ( + "bufio" + "io" + "runtime" +) + +func (logger *Logger) Writer() *io.PipeWriter { + reader, writer := io.Pipe() + + go logger.writerScanner(reader) + runtime.SetFinalizer(writer, writerFinalizer) + + return writer +} + +func (logger *Logger) writerScanner(reader *io.PipeReader) { + scanner := bufio.NewScanner(reader) + for scanner.Scan() { + logger.Print(scanner.Text()) + } + if err := scanner.Err(); err != nil { + logger.Errorf("Error while reading from Writer: %s", err) + } + reader.Close() +} + +func writerFinalizer(writer *io.PipeWriter) { + writer.Close() +} diff --git a/Godeps/_workspace/src/github.com/abbot/go-http-auth/.gitignore b/Godeps/_workspace/src/github.com/abbot/go-http-auth/.gitignore new file mode 100644 index 0000000..112ea39 --- /dev/null +++ b/Godeps/_workspace/src/github.com/abbot/go-http-auth/.gitignore @@ -0,0 +1,5 @@ +*~ +*.a +*.6 +*.out +_testmain.go diff --git a/Godeps/_workspace/src/github.com/abbot/go-http-auth/LICENSE b/Godeps/_workspace/src/github.com/abbot/go-http-auth/LICENSE new file mode 100644 index 0000000..e454a52 --- /dev/null +++ b/Godeps/_workspace/src/github.com/abbot/go-http-auth/LICENSE @@ -0,0 +1,178 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + diff --git a/Godeps/_workspace/src/github.com/abbot/go-http-auth/Makefile b/Godeps/_workspace/src/github.com/abbot/go-http-auth/Makefile new file mode 100644 index 0000000..25f208d --- /dev/null +++ b/Godeps/_workspace/src/github.com/abbot/go-http-auth/Makefile @@ -0,0 +1,12 @@ +include $(GOROOT)/src/Make.inc + +TARG=auth_digest +GOFILES=\ + auth.go\ + digest.go\ + basic.go\ + misc.go\ + md5crypt.go\ + users.go\ + +include $(GOROOT)/src/Make.pkg diff --git a/Godeps/_workspace/src/github.com/abbot/go-http-auth/README.md b/Godeps/_workspace/src/github.com/abbot/go-http-auth/README.md new file mode 100644 index 0000000..8a26f10 --- /dev/null +++ b/Godeps/_workspace/src/github.com/abbot/go-http-auth/README.md @@ -0,0 +1,70 @@ +HTTP Authentication implementation in Go +======================================== + +This is an implementation of HTTP Basic and HTTP Digest authentication +in Go language. It is designed as a simple wrapper for +http.RequestHandler functions. + +Features +-------- + + * Supports HTTP Basic and HTTP Digest authentication. + * Supports htpasswd and htdigest formatted files. + * Automatic reloading of password files. + * Pluggable interface for user/password storage. + * Supports MD5 and SHA1 for Basic authentication password storage. + * Configurable Digest nonce cache size with expiration. + * Wrapper for legacy http handlers (http.HandlerFunc interface) + +Example usage +------------- + +This is a complete working example for Basic auth: + + package main + + import ( + auth "github.com/abbot/go-http-auth" + "fmt" + "net/http" + ) + + func Secret(user, realm string) string { + if user == "john" { + // password is "hello" + return "$1$dlPL2MqE$oQmn16q49SqdmhenQuNgs1" + } + return "" + } + + func handle(w http.ResponseWriter, r *auth.AuthenticatedRequest) { + fmt.Fprintf(w, "

Hello, %s!

", r.Username) + } + + func main() { + authenticator := auth.NewBasicAuthenticator("example.com", Secret) + http.HandleFunc("/", authenticator.Wrap(handle)) + http.ListenAndServe(":8080", nil) + } + +See more examples in the "examples" directory. + +Legal +----- + +This module is developed under Apache 2.0 license, and can be used for +open and proprietary projects. + +Copyright 2012-2013 Lev Shamardin + +Licensed under the Apache License, Version 2.0 (the "License"); you +may not use this file or any other part of this project except in +compliance with the License. You may obtain a copy of the License at + +http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or +implied. See the License for the specific language governing +permissions and limitations under the License. diff --git a/Godeps/_workspace/src/github.com/abbot/go-http-auth/auth.go b/Godeps/_workspace/src/github.com/abbot/go-http-auth/auth.go new file mode 100644 index 0000000..c4eb563 --- /dev/null +++ b/Godeps/_workspace/src/github.com/abbot/go-http-auth/auth.go @@ -0,0 +1,48 @@ +package auth + +import "net/http" + +/* + Request handlers must take AuthenticatedRequest instead of http.Request +*/ +type AuthenticatedRequest struct { + http.Request + /* + Authenticated user name. Current API implies that Username is + never empty, which means that authentication is always done + before calling the request handler. + */ + Username string +} + +/* + AuthenticatedHandlerFunc is like http.HandlerFunc, but takes + AuthenticatedRequest instead of http.Request +*/ +type AuthenticatedHandlerFunc func(http.ResponseWriter, *AuthenticatedRequest) + +/* + Authenticator wraps an AuthenticatedHandlerFunc with + authentication-checking code. + + Typical Authenticator usage is something like: + + authenticator := SomeAuthenticator(...) + http.HandleFunc("/", authenticator(my_handler)) + + Authenticator wrapper checks the user authentication and calls the + wrapped function only after authentication has succeeded. Otherwise, + it returns a handler which initiates the authentication procedure. +*/ +type Authenticator func(AuthenticatedHandlerFunc) http.HandlerFunc + +type AuthenticatorInterface interface { + Wrap(AuthenticatedHandlerFunc) http.HandlerFunc +} + +func JustCheck(auth AuthenticatorInterface, wrapped http.HandlerFunc) http.HandlerFunc { + return auth.Wrap(func(w http.ResponseWriter, ar *AuthenticatedRequest) { + ar.Header.Set("X-Authenticated-Username", ar.Username) + wrapped(w, &ar.Request) + }) +} diff --git a/Godeps/_workspace/src/github.com/abbot/go-http-auth/basic.go b/Godeps/_workspace/src/github.com/abbot/go-http-auth/basic.go new file mode 100644 index 0000000..b705c83 --- /dev/null +++ b/Godeps/_workspace/src/github.com/abbot/go-http-auth/basic.go @@ -0,0 +1,88 @@ +package auth + +import ( + "crypto/sha1" + "encoding/base64" + "net/http" + "strings" +) + +type BasicAuth struct { + Realm string + Secrets SecretProvider +} + +/* + Checks the username/password combination from the request. Returns + either an empty string (authentication failed) or the name of the + authenticated user. + + Supports MD5 and SHA1 password entries +*/ +func (a *BasicAuth) CheckAuth(r *http.Request) string { + s := strings.SplitN(r.Header.Get("Authorization"), " ", 2) + if len(s) != 2 || s[0] != "Basic" { + return "" + } + + b, err := base64.StdEncoding.DecodeString(s[1]) + if err != nil { + return "" + } + pair := strings.SplitN(string(b), ":", 2) + if len(pair) != 2 { + return "" + } + passwd := a.Secrets(pair[0], a.Realm) + if passwd == "" { + return "" + } + if strings.HasPrefix(passwd, "{SHA}") { + d := sha1.New() + d.Write([]byte(pair[1])) + if passwd[5:] != base64.StdEncoding.EncodeToString(d.Sum(nil)) { + return "" + } + } else { + e := NewMD5Entry(passwd) + if e == nil { + return "" + } + if passwd != string(MD5Crypt([]byte(pair[1]), e.Salt, e.Magic)) { + return "" + } + } + return pair[0] +} + +/* + http.Handler for BasicAuth which initiates the authentication process + (or requires reauthentication). +*/ +func (a *BasicAuth) RequireAuth(w http.ResponseWriter, r *http.Request) { + w.Header().Set("WWW-Authenticate", `Basic realm="`+a.Realm+`"`) + w.WriteHeader(401) + w.Write([]byte("401 Unauthorized\n")) +} + +/* + BasicAuthenticator returns a function, which wraps an + AuthenticatedHandlerFunc converting it to http.HandlerFunc. This + wrapper function checks the authentication and either sends back + required authentication headers, or calls the wrapped function with + authenticated username in the AuthenticatedRequest. +*/ +func (a *BasicAuth) Wrap(wrapped AuthenticatedHandlerFunc) http.HandlerFunc { + return func(w http.ResponseWriter, r *http.Request) { + if username := a.CheckAuth(r); username == "" { + a.RequireAuth(w, r) + } else { + ar := &AuthenticatedRequest{Request: *r, Username: username} + wrapped(w, ar) + } + } +} + +func NewBasicAuthenticator(realm string, secrets SecretProvider) *BasicAuth { + return &BasicAuth{Realm: realm, Secrets: secrets} +} diff --git a/Godeps/_workspace/src/github.com/abbot/go-http-auth/digest.go b/Godeps/_workspace/src/github.com/abbot/go-http-auth/digest.go new file mode 100644 index 0000000..b3225ee --- /dev/null +++ b/Godeps/_workspace/src/github.com/abbot/go-http-auth/digest.go @@ -0,0 +1,226 @@ +package auth + +import ( + "fmt" + "net/http" + "net/url" + "sort" + "strconv" + "strings" + "sync" + "time" +) + +type digest_client struct { + nc uint64 + last_seen int64 +} + +type DigestAuth struct { + Realm string + Opaque string + Secrets SecretProvider + PlainTextSecrets bool + + /* + Approximate size of Client's Cache. When actual number of + tracked client nonces exceeds + ClientCacheSize+ClientCacheTolerance, ClientCacheTolerance*2 + older entries are purged. + */ + ClientCacheSize int + ClientCacheTolerance int + + clients map[string]*digest_client + mutex sync.Mutex +} + +type digest_cache_entry struct { + nonce string + last_seen int64 +} + +type digest_cache []digest_cache_entry + +func (c digest_cache) Less(i, j int) bool { + return c[i].last_seen < c[j].last_seen +} + +func (c digest_cache) Len() int { + return len(c) +} + +func (c digest_cache) Swap(i, j int) { + c[i], c[j] = c[j], c[i] +} + +/* + Remove count oldest entries from DigestAuth.clients +*/ +func (a *DigestAuth) Purge(count int) { + entries := make([]digest_cache_entry, 0, len(a.clients)) + for nonce, client := range a.clients { + entries = append(entries, digest_cache_entry{nonce, client.last_seen}) + } + cache := digest_cache(entries) + sort.Sort(cache) + for _, client := range cache[:count] { + delete(a.clients, client.nonce) + } +} + +/* + http.Handler for DigestAuth which initiates the authentication process + (or requires reauthentication). +*/ +func (a *DigestAuth) RequireAuth(w http.ResponseWriter, r *http.Request) { + if len(a.clients) > a.ClientCacheSize+a.ClientCacheTolerance { + a.Purge(a.ClientCacheTolerance * 2) + } + nonce := RandomKey() + a.clients[nonce] = &digest_client{nc: 0, last_seen: time.Now().UnixNano()} + w.Header().Set("WWW-Authenticate", + fmt.Sprintf(`Digest realm="%s", nonce="%s", opaque="%s", algorithm="MD5", qop="auth"`, + a.Realm, nonce, a.Opaque)) + w.WriteHeader(401) + w.Write([]byte("401 Unauthorized\n")) +} + +/* + Parse Authorization header from the http.Request. Returns a map of + auth parameters or nil if the header is not a valid parsable Digest + auth header. +*/ +func DigestAuthParams(r *http.Request) map[string]string { + s := strings.SplitN(r.Header.Get("Authorization"), " ", 2) + if len(s) != 2 || s[0] != "Digest" { + return nil + } + + result := map[string]string{} + for _, kv := range strings.Split(s[1], ",") { + parts := strings.SplitN(kv, "=", 2) + if len(parts) != 2 { + continue + } + result[strings.Trim(parts[0], "\" ")] = strings.Trim(parts[1], "\" ") + } + return result +} + +/* + Check if request contains valid authentication data. Returns a pair + of username, authinfo where username is the name of the authenticated + user or an empty string and authinfo is the contents for the optional + Authentication-Info response header. +*/ +func (da *DigestAuth) CheckAuth(r *http.Request) (username string, authinfo *string) { + da.mutex.Lock() + defer da.mutex.Unlock() + username = "" + authinfo = nil + auth := DigestAuthParams(r) + if auth == nil || da.Opaque != auth["opaque"] || auth["algorithm"] != "MD5" || auth["qop"] != "auth" { + return + } + + // Check if the requested URI matches auth header + switch u, err := url.Parse(auth["uri"]); { + case err != nil: + return + case r.URL == nil: + return + case len(u.Path) > len(r.URL.Path): + return + case !strings.HasPrefix(r.URL.Path, u.Path): + return + } + + HA1 := da.Secrets(auth["username"], da.Realm) + if da.PlainTextSecrets { + HA1 = H(auth["username"] + ":" + da.Realm + ":" + HA1) + } + HA2 := H(r.Method + ":" + auth["uri"]) + KD := H(strings.Join([]string{HA1, auth["nonce"], auth["nc"], auth["cnonce"], auth["qop"], HA2}, ":")) + + if KD != auth["response"] { + return + } + + // At this point crypto checks are completed and validated. + // Now check if the session is valid. + + nc, err := strconv.ParseUint(auth["nc"], 16, 64) + if err != nil { + return + } + + if client, ok := da.clients[auth["nonce"]]; !ok { + return + } else { + if client.nc != 0 && client.nc >= nc { + return + } + client.nc = nc + client.last_seen = time.Now().UnixNano() + } + + resp_HA2 := H(":" + auth["uri"]) + rspauth := H(strings.Join([]string{HA1, auth["nonce"], auth["nc"], auth["cnonce"], auth["qop"], resp_HA2}, ":")) + + info := fmt.Sprintf(`qop="auth", rspauth="%s", cnonce="%s", nc="%s"`, rspauth, auth["cnonce"], auth["nc"]) + return auth["username"], &info +} + +/* + Default values for ClientCacheSize and ClientCacheTolerance for DigestAuth +*/ +const DefaultClientCacheSize = 1000 +const DefaultClientCacheTolerance = 100 + +/* + Wrap returns an Authenticator which uses HTTP Digest + authentication. Arguments: + + realm: The authentication realm. + + secrets: SecretProvider which must return HA1 digests for the same + realm as above. +*/ +func (a *DigestAuth) Wrap(wrapped AuthenticatedHandlerFunc) http.HandlerFunc { + return func(w http.ResponseWriter, r *http.Request) { + if username, authinfo := a.CheckAuth(r); username == "" { + a.RequireAuth(w, r) + } else { + ar := &AuthenticatedRequest{Request: *r, Username: username} + if authinfo != nil { + w.Header().Set("Authentication-Info", *authinfo) + } + wrapped(w, ar) + } + } +} + +/* + JustCheck returns function which converts an http.HandlerFunc into a + http.HandlerFunc which requires authentication. Username is passed as + an extra X-Authenticated-Username header. +*/ +func (a *DigestAuth) JustCheck(wrapped http.HandlerFunc) http.HandlerFunc { + return a.Wrap(func(w http.ResponseWriter, ar *AuthenticatedRequest) { + ar.Header.Set("X-Authenticated-Username", ar.Username) + wrapped(w, &ar.Request) + }) +} + +func NewDigestAuthenticator(realm string, secrets SecretProvider) *DigestAuth { + da := &DigestAuth{ + Opaque: RandomKey(), + Realm: realm, + Secrets: secrets, + PlainTextSecrets: false, + ClientCacheSize: DefaultClientCacheSize, + ClientCacheTolerance: DefaultClientCacheTolerance, + clients: map[string]*digest_client{}} + return da +} diff --git a/Godeps/_workspace/src/github.com/abbot/go-http-auth/examples/basic.go b/Godeps/_workspace/src/github.com/abbot/go-http-auth/examples/basic.go new file mode 100644 index 0000000..49d3989 --- /dev/null +++ b/Godeps/_workspace/src/github.com/abbot/go-http-auth/examples/basic.go @@ -0,0 +1,35 @@ +// +build ignore + +/* + Example application using Basic auth + + Build with: + + go build basic.go +*/ + +package main + +import ( + auth ".." + "fmt" + "net/http" +) + +func Secret(user, realm string) string { + if user == "john" { + // password is "hello" + return "$1$dlPL2MqE$oQmn16q49SqdmhenQuNgs1" + } + return "" +} + +func handle(w http.ResponseWriter, r *auth.AuthenticatedRequest) { + fmt.Fprintf(w, "

Hello, %s!

", r.Username) +} + +func main() { + authenticator := auth.NewBasicAuthenticator("example.com", Secret) + http.HandleFunc("/", authenticator.Wrap(handle)) + http.ListenAndServe(":8080", nil) +} diff --git a/Godeps/_workspace/src/github.com/abbot/go-http-auth/examples/digest.go b/Godeps/_workspace/src/github.com/abbot/go-http-auth/examples/digest.go new file mode 100644 index 0000000..3859893 --- /dev/null +++ b/Godeps/_workspace/src/github.com/abbot/go-http-auth/examples/digest.go @@ -0,0 +1,35 @@ +// +build ignore + +/* + Example application using Digest auth + + Build with: + + go build digest.go +*/ + +package main + +import ( + auth ".." + "fmt" + "net/http" +) + +func Secret(user, realm string) string { + if user == "john" { + // password is "hello" + return "b98e16cbc3d01734b264adba7baa3bf9" + } + return "" +} + +func handle(w http.ResponseWriter, r *auth.AuthenticatedRequest) { + fmt.Fprintf(w, "

Hello, %s!

", r.Username) +} + +func main() { + authenticator := auth.NewDigestAuthenticator("example.com", Secret) + http.HandleFunc("/", authenticator.Wrap(handle)) + http.ListenAndServe(":8080", nil) +} diff --git a/Godeps/_workspace/src/github.com/abbot/go-http-auth/examples/wrapped.go b/Godeps/_workspace/src/github.com/abbot/go-http-auth/examples/wrapped.go new file mode 100644 index 0000000..aa95ec3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/abbot/go-http-auth/examples/wrapped.go @@ -0,0 +1,36 @@ +// +build ignore + +/* + Example demonstrating how to wrap an application which is unaware of + authenticated requests with a "pass-through" authentication + + Build with: + + go build wrapped.go +*/ + +package main + +import ( + auth ".." + "fmt" + "net/http" +) + +func Secret(user, realm string) string { + if user == "john" { + // password is "hello" + return "$1$dlPL2MqE$oQmn16q49SqdmhenQuNgs1" + } + return "" +} + +func regular_handler(w http.ResponseWriter, r *http.Request) { + fmt.Fprintf(w, "

This application is unaware of authentication

") +} + +func main() { + authenticator := auth.NewBasicAuthenticator("example.com", Secret) + http.HandleFunc("/", auth.JustCheck(authenticator, regular_handler)) + http.ListenAndServe(":8080", nil) +} diff --git a/Godeps/_workspace/src/github.com/abbot/go-http-auth/md5crypt.go b/Godeps/_workspace/src/github.com/abbot/go-http-auth/md5crypt.go new file mode 100644 index 0000000..a7a031c --- /dev/null +++ b/Godeps/_workspace/src/github.com/abbot/go-http-auth/md5crypt.go @@ -0,0 +1,92 @@ +package auth + +import "crypto/md5" +import "strings" + +const itoa64 = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" + +var md5_crypt_swaps = [16]int{12, 6, 0, 13, 7, 1, 14, 8, 2, 15, 9, 3, 5, 10, 4, 11} + +type MD5Entry struct { + Magic, Salt, Hash []byte +} + +func NewMD5Entry(e string) *MD5Entry { + parts := strings.SplitN(e, "$", 4) + if len(parts) != 4 { + return nil + } + return &MD5Entry{ + Magic: []byte("$" + parts[1] + "$"), + Salt: []byte(parts[2]), + Hash: []byte(parts[3]), + } +} + +/* + MD5 password crypt implementation +*/ +func MD5Crypt(password, salt, magic []byte) []byte { + d := md5.New() + + d.Write(password) + d.Write(magic) + d.Write(salt) + + d2 := md5.New() + d2.Write(password) + d2.Write(salt) + d2.Write(password) + + for i, mixin := 0, d2.Sum(nil); i < len(password); i++ { + d.Write([]byte{mixin[i%16]}) + } + + for i := len(password); i != 0; i >>= 1 { + if i&1 == 0 { + d.Write([]byte{password[0]}) + } else { + d.Write([]byte{0}) + } + } + + final := d.Sum(nil) + + for i := 0; i < 1000; i++ { + d2 := md5.New() + if i&1 == 0 { + d2.Write(final) + } else { + d2.Write(password) + } + + if i%3 != 0 { + d2.Write(salt) + } + + if i%7 != 0 { + d2.Write(password) + } + + if i&1 == 0 { + d2.Write(password) + } else { + d2.Write(final) + } + final = d2.Sum(nil) + } + + result := make([]byte, 0, 22) + v := uint(0) + bits := uint(0) + for _, i := range md5_crypt_swaps { + v |= (uint(final[i]) << bits) + for bits = bits + 8; bits > 6; bits -= 6 { + result = append(result, itoa64[v&0x3f]) + v >>= 6 + } + } + result = append(result, itoa64[v&0x3f]) + + return append(append(append(magic, salt...), '$'), result...) +} diff --git a/Godeps/_workspace/src/github.com/abbot/go-http-auth/misc.go b/Godeps/_workspace/src/github.com/abbot/go-http-auth/misc.go new file mode 100644 index 0000000..277a685 --- /dev/null +++ b/Godeps/_workspace/src/github.com/abbot/go-http-auth/misc.go @@ -0,0 +1,30 @@ +package auth + +import "encoding/base64" +import "crypto/md5" +import "crypto/rand" +import "fmt" + +/* + Return a random 16-byte base64 alphabet string +*/ +func RandomKey() string { + k := make([]byte, 12) + for bytes := 0; bytes < len(k); { + n, err := rand.Read(k[bytes:]) + if err != nil { + panic("rand.Read() failed") + } + bytes += n + } + return base64.StdEncoding.EncodeToString(k) +} + +/* + H function for MD5 algorithm (returns a lower-case hex MD5 digest) +*/ +func H(data string) string { + digest := md5.New() + digest.Write([]byte(data)) + return fmt.Sprintf("%x", digest.Sum(nil)) +} diff --git a/Godeps/_workspace/src/github.com/abbot/go-http-auth/test.htdigest b/Godeps/_workspace/src/github.com/abbot/go-http-auth/test.htdigest new file mode 100644 index 0000000..6c8c75b --- /dev/null +++ b/Godeps/_workspace/src/github.com/abbot/go-http-auth/test.htdigest @@ -0,0 +1 @@ +test:example.com:aa78524fceb0e50fd8ca96dd818b8cf9 diff --git a/Godeps/_workspace/src/github.com/abbot/go-http-auth/test.htpasswd b/Godeps/_workspace/src/github.com/abbot/go-http-auth/test.htpasswd new file mode 100644 index 0000000..7b06989 --- /dev/null +++ b/Godeps/_workspace/src/github.com/abbot/go-http-auth/test.htpasswd @@ -0,0 +1,2 @@ +test:{SHA}qvTGHdzF6KLavt4PO0gs2a6pQ00= +test2:$apr1$a0j62R97$mYqFkloXH0/UOaUnAiV2b0 diff --git a/Godeps/_workspace/src/github.com/abbot/go-http-auth/users.go b/Godeps/_workspace/src/github.com/abbot/go-http-auth/users.go new file mode 100644 index 0000000..5e7d0b8 --- /dev/null +++ b/Godeps/_workspace/src/github.com/abbot/go-http-auth/users.go @@ -0,0 +1,136 @@ +package auth + +import "encoding/csv" +import "os" + +/* + SecretProvider is used by authenticators. Takes user name and realm + as an argument, returns secret required for authentication (HA1 for + digest authentication, properly encrypted password for basic). +*/ +type SecretProvider func(user, realm string) string + +/* + Common functions for file auto-reloading +*/ +type File struct { + Path string + Info os.FileInfo + /* must be set in inherited types during initialization */ + Reload func() +} + +func (f *File) ReloadIfNeeded() { + info, err := os.Stat(f.Path) + if err != nil { + panic(err) + } + if f.Info == nil || f.Info.ModTime() != info.ModTime() { + f.Info = info + f.Reload() + } +} + +/* + Structure used for htdigest file authentication. Users map realms to + maps of users to their HA1 digests. +*/ +type HtdigestFile struct { + File + Users map[string]map[string]string +} + +func reload_htdigest(hf *HtdigestFile) { + r, err := os.Open(hf.Path) + if err != nil { + panic(err) + } + csv_reader := csv.NewReader(r) + csv_reader.Comma = ':' + csv_reader.Comment = '#' + csv_reader.TrimLeadingSpace = true + + records, err := csv_reader.ReadAll() + if err != nil { + panic(err) + } + + hf.Users = make(map[string]map[string]string) + for _, record := range records { + _, exists := hf.Users[record[1]] + if !exists { + hf.Users[record[1]] = make(map[string]string) + } + hf.Users[record[1]][record[0]] = record[2] + } +} + +/* + SecretProvider implementation based on htdigest-formated files. Will + reload htdigest file on changes. Will panic on syntax errors in + htdigest files. +*/ +func HtdigestFileProvider(filename string) SecretProvider { + hf := &HtdigestFile{File: File{Path: filename}} + hf.Reload = func() { reload_htdigest(hf) } + return func(user, realm string) string { + hf.ReloadIfNeeded() + _, exists := hf.Users[realm] + if !exists { + return "" + } + digest, exists := hf.Users[realm][user] + if !exists { + return "" + } + return digest + } +} + +/* + Structure used for htdigest file authentication. Users map users to + their salted encrypted password +*/ +type HtpasswdFile struct { + File + Users map[string]string +} + +func reload_htpasswd(h *HtpasswdFile) { + r, err := os.Open(h.Path) + if err != nil { + panic(err) + } + csv_reader := csv.NewReader(r) + csv_reader.Comma = ':' + csv_reader.Comment = '#' + csv_reader.TrimLeadingSpace = true + + records, err := csv_reader.ReadAll() + if err != nil { + panic(err) + } + + h.Users = make(map[string]string) + for _, record := range records { + h.Users[record[0]] = record[1] + } +} + +/* + SecretProvider implementation based on htpasswd-formated files. Will + reload htpasswd file on changes. Will panic on syntax errors in + htpasswd files. Realm argument of the SecretProvider is ignored. +*/ +func HtpasswdFileProvider(filename string) SecretProvider { + h := &HtpasswdFile{File: File{Path: filename}} + h.Reload = func() { reload_htpasswd(h) } + return func(user, realm string) string { + h.ReloadIfNeeded() + password, exists := h.Users[user] + if !exists { + return "" + } + return password + } +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/LICENSE.txt b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/LICENSE.txt new file mode 100644 index 0000000..d645695 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/LICENSE.txt @@ -0,0 +1,202 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "[]" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/NOTICE.txt b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/NOTICE.txt new file mode 100644 index 0000000..5f14d11 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/NOTICE.txt @@ -0,0 +1,3 @@ +AWS SDK for Go +Copyright 2015 Amazon.com, Inc. or its affiliates. All Rights Reserved. +Copyright 2014-2015 Stripe, Inc. diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awserr/error.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awserr/error.go new file mode 100644 index 0000000..05a179c --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awserr/error.go @@ -0,0 +1,124 @@ +// Package awserr represents API error interface accessors for the SDK. +package awserr + +// An Error wraps lower level errors with code, message and an original error. +// The underlying concrete error type may also satisfy other interfaces which +// can be to used to obtain more specific information about the error. +// +// Calling Error() or String() will always include the full information about +// an error based on its underlying type. +// +// Example: +// +// output, err := s3manage.Upload(svc, input, opts) +// if err != nil { +// if awsErr, ok := err.(awserr.Error); ok { +// // Get error details +// log.Println("Error:", awsErr.Code(), awsErr.Message()) +// +// // Prints out full error message, including original error if there was one. +// log.Println("Error:", awsErr.Error()) +// +// // Get original error +// if origErr := awsErr.OrigErr(); origErr != nil { +// // operate on original error. +// } +// } else { +// fmt.Println(err.Error()) +// } +// } +// +type Error interface { + // Satisfy the generic error interface. + error + + // Returns the short phrase depicting the classification of the error. + Code() string + + // Returns the error details message. + Message() string + + // Returns the original error if one was set. Nil is returned if not set. + OrigErr() error +} + +// BatchError is a batch of errors which also wraps lower level errors with code, message, +// and original errors. Calling Error() will only return the error that is at the end +// of the list. +type BatchError interface { + // Satisfy the generic error interface. + error + + // Returns the short phrase depicting the classification of the error. + Code() string + + // Returns the error details message. + Message() string + + // Returns the original error if one was set. Nil is returned if not set. + OrigErrs() []error +} + +// New returns an Error object described by the code, message, and origErr. +// +// If origErr satisfies the Error interface it will not be wrapped within a new +// Error object and will instead be returned. +func New(code, message string, origErr error) Error { + return newBaseError(code, message, origErr) +} + +// NewBatchError returns an baseError with an expectation of an array of errors +func NewBatchError(code, message string, errs []error) BatchError { + return newBaseErrors(code, message, errs) +} + +// A RequestFailure is an interface to extract request failure information from +// an Error such as the request ID of the failed request returned by a service. +// RequestFailures may not always have a requestID value if the request failed +// prior to reaching the service such as a connection error. +// +// Example: +// +// output, err := s3manage.Upload(svc, input, opts) +// if err != nil { +// if reqerr, ok := err.(RequestFailure); ok { +// log.Printf("Request failed", reqerr.Code(), reqerr.Message(), reqerr.RequestID()) +// } else { +// log.Printf("Error:", err.Error() +// } +// } +// +// Combined with awserr.Error: +// +// output, err := s3manage.Upload(svc, input, opts) +// if err != nil { +// if awsErr, ok := err.(awserr.Error); ok { +// // Generic AWS Error with Code, Message, and original error (if any) +// fmt.Println(awsErr.Code(), awsErr.Message(), awsErr.OrigErr()) +// +// if reqErr, ok := err.(awserr.RequestFailure); ok { +// // A service error occurred +// fmt.Println(reqErr.StatusCode(), reqErr.RequestID()) +// } +// } else { +// fmt.Println(err.Error()) +// } +// } +// +type RequestFailure interface { + Error + + // The status code of the HTTP response. + StatusCode() int + + // The request ID returned by the service for a request failure. This will + // be empty if no request ID is available such as the request failed due + // to a connection error. + RequestID() string +} + +// NewRequestFailure returns a new request error wrapper for the given Error +// provided. +func NewRequestFailure(err Error, statusCode int, reqID string) RequestFailure { + return newRequestError(err, statusCode, reqID) +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awserr/types.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awserr/types.go new file mode 100644 index 0000000..605f73c --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awserr/types.go @@ -0,0 +1,197 @@ +package awserr + +import "fmt" + +// SprintError returns a string of the formatted error code. +// +// Both extra and origErr are optional. If they are included their lines +// will be added, but if they are not included their lines will be ignored. +func SprintError(code, message, extra string, origErr error) string { + msg := fmt.Sprintf("%s: %s", code, message) + if extra != "" { + msg = fmt.Sprintf("%s\n\t%s", msg, extra) + } + if origErr != nil { + msg = fmt.Sprintf("%s\ncaused by: %s", msg, origErr.Error()) + } + return msg +} + +// A baseError wraps the code and message which defines an error. It also +// can be used to wrap an original error object. +// +// Should be used as the root for errors satisfying the awserr.Error. Also +// for any error which does not fit into a specific error wrapper type. +type baseError struct { + // Classification of error + code string + + // Detailed information about error + message string + + // Optional original error this error is based off of. Allows building + // chained errors. + errs []error +} + +// newBaseError returns an error object for the code, message, and err. +// +// code is a short no whitespace phrase depicting the classification of +// the error that is being created. +// +// message is the free flow string containing detailed information about the error. +// +// origErr is the error object which will be nested under the new error to be returned. +func newBaseError(code, message string, origErr error) *baseError { + b := &baseError{ + code: code, + message: message, + } + + if origErr != nil { + b.errs = append(b.errs, origErr) + } + + return b +} + +// newBaseErrors returns an error object for the code, message, and errors. +// +// code is a short no whitespace phrase depicting the classification of +// the error that is being created. +// +// message is the free flow string containing detailed information about the error. +// +// origErrs is the error objects which will be nested under the new errors to be returned. +func newBaseErrors(code, message string, origErrs []error) *baseError { + b := &baseError{ + code: code, + message: message, + errs: origErrs, + } + + return b +} + +// Error returns the string representation of the error. +// +// See ErrorWithExtra for formatting. +// +// Satisfies the error interface. +func (b baseError) Error() string { + size := len(b.errs) + if size > 0 { + return SprintError(b.code, b.message, "", errorList(b.errs)) + } + + return SprintError(b.code, b.message, "", nil) +} + +// String returns the string representation of the error. +// Alias for Error to satisfy the stringer interface. +func (b baseError) String() string { + return b.Error() +} + +// Code returns the short phrase depicting the classification of the error. +func (b baseError) Code() string { + return b.code +} + +// Message returns the error details message. +func (b baseError) Message() string { + return b.message +} + +// OrigErr returns the original error if one was set. Nil is returned if no error +// was set. This only returns the first element in the list. If the full list is +// needed, use BatchError +func (b baseError) OrigErr() error { + if size := len(b.errs); size > 0 { + return b.errs[0] + } + + return nil +} + +// OrigErrs returns the original errors if one was set. An empty slice is returned if +// no error was set:w +func (b baseError) OrigErrs() []error { + return b.errs +} + +// So that the Error interface type can be included as an anonymous field +// in the requestError struct and not conflict with the error.Error() method. +type awsError Error + +// A requestError wraps a request or service error. +// +// Composed of baseError for code, message, and original error. +type requestError struct { + awsError + statusCode int + requestID string +} + +// newRequestError returns a wrapped error with additional information for request +// status code, and service requestID. +// +// Should be used to wrap all request which involve service requests. Even if +// the request failed without a service response, but had an HTTP status code +// that may be meaningful. +// +// Also wraps original errors via the baseError. +func newRequestError(err Error, statusCode int, requestID string) *requestError { + return &requestError{ + awsError: err, + statusCode: statusCode, + requestID: requestID, + } +} + +// Error returns the string representation of the error. +// Satisfies the error interface. +func (r requestError) Error() string { + extra := fmt.Sprintf("status code: %d, request id: %s", + r.statusCode, r.requestID) + return SprintError(r.Code(), r.Message(), extra, r.OrigErr()) +} + +// String returns the string representation of the error. +// Alias for Error to satisfy the stringer interface. +func (r requestError) String() string { + return r.Error() +} + +// StatusCode returns the wrapped status code for the error +func (r requestError) StatusCode() int { + return r.statusCode +} + +// RequestID returns the wrapped requestID +func (r requestError) RequestID() string { + return r.requestID +} + +// An error list that satisfies the golang interface +type errorList []error + +// Error returns the string representation of the error. +// +// Satisfies the error interface. +func (e errorList) Error() string { + msg := "" + // How do we want to handle the array size being zero + if size := len(e); size > 0 { + for i := 0; i < size; i++ { + msg += fmt.Sprintf("%s", e[i].Error()) + // We check the next index to see if it is within the slice. + // If it is, then we append a newline. We do this, because unit tests + // could be broken with the additional '\n' + if i+1 < size { + msg += "\n" + } + } + } + return msg +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awsutil/copy.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awsutil/copy.go new file mode 100644 index 0000000..8429470 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awsutil/copy.go @@ -0,0 +1,100 @@ +package awsutil + +import ( + "io" + "reflect" +) + +// Copy deeply copies a src structure to dst. Useful for copying request and +// response structures. +// +// Can copy between structs of different type, but will only copy fields which +// are assignable, and exist in both structs. Fields which are not assignable, +// or do not exist in both structs are ignored. +func Copy(dst, src interface{}) { + dstval := reflect.ValueOf(dst) + if !dstval.IsValid() { + panic("Copy dst cannot be nil") + } + + rcopy(dstval, reflect.ValueOf(src), true) +} + +// CopyOf returns a copy of src while also allocating the memory for dst. +// src must be a pointer type or this operation will fail. +func CopyOf(src interface{}) (dst interface{}) { + dsti := reflect.New(reflect.TypeOf(src).Elem()) + dst = dsti.Interface() + rcopy(dsti, reflect.ValueOf(src), true) + return +} + +// rcopy performs a recursive copy of values from the source to destination. +// +// root is used to skip certain aspects of the copy which are not valid +// for the root node of a object. +func rcopy(dst, src reflect.Value, root bool) { + if !src.IsValid() { + return + } + + switch src.Kind() { + case reflect.Ptr: + if _, ok := src.Interface().(io.Reader); ok { + if dst.Kind() == reflect.Ptr && dst.Elem().CanSet() { + dst.Elem().Set(src) + } else if dst.CanSet() { + dst.Set(src) + } + } else { + e := src.Type().Elem() + if dst.CanSet() && !src.IsNil() { + dst.Set(reflect.New(e)) + } + if src.Elem().IsValid() { + // Keep the current root state since the depth hasn't changed + rcopy(dst.Elem(), src.Elem(), root) + } + } + case reflect.Struct: + t := dst.Type() + for i := 0; i < t.NumField(); i++ { + name := t.Field(i).Name + srcVal := src.FieldByName(name) + dstVal := dst.FieldByName(name) + if srcVal.IsValid() && dstVal.CanSet() { + rcopy(dstVal, srcVal, false) + } + } + case reflect.Slice: + if src.IsNil() { + break + } + + s := reflect.MakeSlice(src.Type(), src.Len(), src.Cap()) + dst.Set(s) + for i := 0; i < src.Len(); i++ { + rcopy(dst.Index(i), src.Index(i), false) + } + case reflect.Map: + if src.IsNil() { + break + } + + s := reflect.MakeMap(src.Type()) + dst.Set(s) + for _, k := range src.MapKeys() { + v := src.MapIndex(k) + v2 := reflect.New(v.Type()).Elem() + rcopy(v2, v, false) + dst.SetMapIndex(k, v2) + } + default: + // Assign the value if possible. If its not assignable, the value would + // need to be converted and the impact of that may be unexpected, or is + // not compatible with the dst type. + if src.Type().AssignableTo(dst.Type()) { + dst.Set(src) + } + } +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awsutil/equal.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awsutil/equal.go new file mode 100644 index 0000000..59fa4a5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awsutil/equal.go @@ -0,0 +1,27 @@ +package awsutil + +import ( + "reflect" +) + +// DeepEqual returns if the two values are deeply equal like reflect.DeepEqual. +// In addition to this, this method will also dereference the input values if +// possible so the DeepEqual performed will not fail if one parameter is a +// pointer and the other is not. +// +// DeepEqual will not perform indirection of nested values of the input parameters. +func DeepEqual(a, b interface{}) bool { + ra := reflect.Indirect(reflect.ValueOf(a)) + rb := reflect.Indirect(reflect.ValueOf(b)) + + if raValid, rbValid := ra.IsValid(), rb.IsValid(); !raValid && !rbValid { + // If the elements are both nil, and of the same type the are equal + // If they are of different types they are not equal + return reflect.TypeOf(a) == reflect.TypeOf(b) + } else if raValid != rbValid { + // Both values must be valid to be equal + return false + } + + return reflect.DeepEqual(ra.Interface(), rb.Interface()) +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awsutil/path_value.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awsutil/path_value.go new file mode 100644 index 0000000..4d2a01e --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awsutil/path_value.go @@ -0,0 +1,222 @@ +package awsutil + +import ( + "reflect" + "regexp" + "strconv" + "strings" + + "github.com/jmespath/go-jmespath" +) + +var indexRe = regexp.MustCompile(`(.+)\[(-?\d+)?\]$`) + +// rValuesAtPath returns a slice of values found in value v. The values +// in v are explored recursively so all nested values are collected. +func rValuesAtPath(v interface{}, path string, createPath, caseSensitive, nilTerm bool) []reflect.Value { + pathparts := strings.Split(path, "||") + if len(pathparts) > 1 { + for _, pathpart := range pathparts { + vals := rValuesAtPath(v, pathpart, createPath, caseSensitive, nilTerm) + if len(vals) > 0 { + return vals + } + } + return nil + } + + values := []reflect.Value{reflect.Indirect(reflect.ValueOf(v))} + components := strings.Split(path, ".") + for len(values) > 0 && len(components) > 0 { + var index *int64 + var indexStar bool + c := strings.TrimSpace(components[0]) + if c == "" { // no actual component, illegal syntax + return nil + } else if caseSensitive && c != "*" && strings.ToLower(c[0:1]) == c[0:1] { + // TODO normalize case for user + return nil // don't support unexported fields + } + + // parse this component + if m := indexRe.FindStringSubmatch(c); m != nil { + c = m[1] + if m[2] == "" { + index = nil + indexStar = true + } else { + i, _ := strconv.ParseInt(m[2], 10, 32) + index = &i + indexStar = false + } + } + + nextvals := []reflect.Value{} + for _, value := range values { + // pull component name out of struct member + if value.Kind() != reflect.Struct { + continue + } + + if c == "*" { // pull all members + for i := 0; i < value.NumField(); i++ { + if f := reflect.Indirect(value.Field(i)); f.IsValid() { + nextvals = append(nextvals, f) + } + } + continue + } + + value = value.FieldByNameFunc(func(name string) bool { + if c == name { + return true + } else if !caseSensitive && strings.ToLower(name) == strings.ToLower(c) { + return true + } + return false + }) + + if nilTerm && value.Kind() == reflect.Ptr && len(components[1:]) == 0 { + if !value.IsNil() { + value.Set(reflect.Zero(value.Type())) + } + return []reflect.Value{value} + } + + if createPath && value.Kind() == reflect.Ptr && value.IsNil() { + // TODO if the value is the terminus it should not be created + // if the value to be set to its position is nil. + value.Set(reflect.New(value.Type().Elem())) + value = value.Elem() + } else { + value = reflect.Indirect(value) + } + + if value.Kind() == reflect.Slice || value.Kind() == reflect.Map { + if !createPath && value.IsNil() { + value = reflect.ValueOf(nil) + } + } + + if value.IsValid() { + nextvals = append(nextvals, value) + } + } + values = nextvals + + if indexStar || index != nil { + nextvals = []reflect.Value{} + for _, value := range values { + value := reflect.Indirect(value) + if value.Kind() != reflect.Slice { + continue + } + + if indexStar { // grab all indices + for i := 0; i < value.Len(); i++ { + idx := reflect.Indirect(value.Index(i)) + if idx.IsValid() { + nextvals = append(nextvals, idx) + } + } + continue + } + + // pull out index + i := int(*index) + if i >= value.Len() { // check out of bounds + if createPath { + // TODO resize slice + } else { + continue + } + } else if i < 0 { // support negative indexing + i = value.Len() + i + } + value = reflect.Indirect(value.Index(i)) + + if value.Kind() == reflect.Slice || value.Kind() == reflect.Map { + if !createPath && value.IsNil() { + value = reflect.ValueOf(nil) + } + } + + if value.IsValid() { + nextvals = append(nextvals, value) + } + } + values = nextvals + } + + components = components[1:] + } + return values +} + +// ValuesAtPath returns a list of values at the case insensitive lexical +// path inside of a structure. +func ValuesAtPath(i interface{}, path string) ([]interface{}, error) { + result, err := jmespath.Search(path, i) + if err != nil { + return nil, err + } + + v := reflect.ValueOf(result) + if !v.IsValid() || (v.Kind() == reflect.Ptr && v.IsNil()) { + return nil, nil + } + if s, ok := result.([]interface{}); ok { + return s, err + } + if v.Kind() == reflect.Map && v.Len() == 0 { + return nil, nil + } + if v.Kind() == reflect.Slice { + out := make([]interface{}, v.Len()) + for i := 0; i < v.Len(); i++ { + out[i] = v.Index(i).Interface() + } + return out, nil + } + + return []interface{}{result}, nil +} + +// SetValueAtPath sets a value at the case insensitive lexical path inside +// of a structure. +func SetValueAtPath(i interface{}, path string, v interface{}) { + if rvals := rValuesAtPath(i, path, true, false, v == nil); rvals != nil { + for _, rval := range rvals { + if rval.Kind() == reflect.Ptr && rval.IsNil() { + continue + } + setValue(rval, v) + } + } +} + +func setValue(dstVal reflect.Value, src interface{}) { + if dstVal.Kind() == reflect.Ptr { + dstVal = reflect.Indirect(dstVal) + } + srcVal := reflect.ValueOf(src) + + if !srcVal.IsValid() { // src is literal nil + if dstVal.CanAddr() { + // Convert to pointer so that pointer's value can be nil'ed + // dstVal = dstVal.Addr() + } + dstVal.Set(reflect.Zero(dstVal.Type())) + + } else if srcVal.Kind() == reflect.Ptr { + if srcVal.IsNil() { + srcVal = reflect.Zero(dstVal.Type()) + } else { + srcVal = reflect.ValueOf(src).Elem() + } + dstVal.Set(srcVal) + } else { + dstVal.Set(srcVal) + } + +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awsutil/prettify.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awsutil/prettify.go new file mode 100644 index 0000000..0de3eaa --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awsutil/prettify.go @@ -0,0 +1,103 @@ +package awsutil + +import ( + "bytes" + "fmt" + "io" + "reflect" + "strings" +) + +// Prettify returns the string representation of a value. +func Prettify(i interface{}) string { + var buf bytes.Buffer + prettify(reflect.ValueOf(i), 0, &buf) + return buf.String() +} + +// prettify will recursively walk value v to build a textual +// representation of the value. +func prettify(v reflect.Value, indent int, buf *bytes.Buffer) { + for v.Kind() == reflect.Ptr { + v = v.Elem() + } + + switch v.Kind() { + case reflect.Struct: + strtype := v.Type().String() + if strtype == "time.Time" { + fmt.Fprintf(buf, "%s", v.Interface()) + break + } else if strings.HasPrefix(strtype, "io.") { + buf.WriteString("") + break + } + + buf.WriteString("{\n") + + names := []string{} + for i := 0; i < v.Type().NumField(); i++ { + name := v.Type().Field(i).Name + f := v.Field(i) + if name[0:1] == strings.ToLower(name[0:1]) { + continue // ignore unexported fields + } + if (f.Kind() == reflect.Ptr || f.Kind() == reflect.Slice || f.Kind() == reflect.Map) && f.IsNil() { + continue // ignore unset fields + } + names = append(names, name) + } + + for i, n := range names { + val := v.FieldByName(n) + buf.WriteString(strings.Repeat(" ", indent+2)) + buf.WriteString(n + ": ") + prettify(val, indent+2, buf) + + if i < len(names)-1 { + buf.WriteString(",\n") + } + } + + buf.WriteString("\n" + strings.Repeat(" ", indent) + "}") + case reflect.Slice: + nl, id, id2 := "", "", "" + if v.Len() > 3 { + nl, id, id2 = "\n", strings.Repeat(" ", indent), strings.Repeat(" ", indent+2) + } + buf.WriteString("[" + nl) + for i := 0; i < v.Len(); i++ { + buf.WriteString(id2) + prettify(v.Index(i), indent+2, buf) + + if i < v.Len()-1 { + buf.WriteString("," + nl) + } + } + + buf.WriteString(nl + id + "]") + case reflect.Map: + buf.WriteString("{\n") + + for i, k := range v.MapKeys() { + buf.WriteString(strings.Repeat(" ", indent+2)) + buf.WriteString(k.String() + ": ") + prettify(v.MapIndex(k), indent+2, buf) + + if i < v.Len()-1 { + buf.WriteString(",\n") + } + } + + buf.WriteString("\n" + strings.Repeat(" ", indent) + "}") + default: + format := "%v" + switch v.Interface().(type) { + case string: + format = "%q" + case io.ReadSeeker, io.Reader: + format = "buffer(%p)" + } + fmt.Fprintf(buf, format, v.Interface()) + } +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awsutil/string_value.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awsutil/string_value.go new file mode 100644 index 0000000..b6432f1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/awsutil/string_value.go @@ -0,0 +1,89 @@ +package awsutil + +import ( + "bytes" + "fmt" + "reflect" + "strings" +) + +// StringValue returns the string representation of a value. +func StringValue(i interface{}) string { + var buf bytes.Buffer + stringValue(reflect.ValueOf(i), 0, &buf) + return buf.String() +} + +func stringValue(v reflect.Value, indent int, buf *bytes.Buffer) { + for v.Kind() == reflect.Ptr { + v = v.Elem() + } + + switch v.Kind() { + case reflect.Struct: + buf.WriteString("{\n") + + names := []string{} + for i := 0; i < v.Type().NumField(); i++ { + name := v.Type().Field(i).Name + f := v.Field(i) + if name[0:1] == strings.ToLower(name[0:1]) { + continue // ignore unexported fields + } + if (f.Kind() == reflect.Ptr || f.Kind() == reflect.Slice) && f.IsNil() { + continue // ignore unset fields + } + names = append(names, name) + } + + for i, n := range names { + val := v.FieldByName(n) + buf.WriteString(strings.Repeat(" ", indent+2)) + buf.WriteString(n + ": ") + stringValue(val, indent+2, buf) + + if i < len(names)-1 { + buf.WriteString(",\n") + } + } + + buf.WriteString("\n" + strings.Repeat(" ", indent) + "}") + case reflect.Slice: + nl, id, id2 := "", "", "" + if v.Len() > 3 { + nl, id, id2 = "\n", strings.Repeat(" ", indent), strings.Repeat(" ", indent+2) + } + buf.WriteString("[" + nl) + for i := 0; i < v.Len(); i++ { + buf.WriteString(id2) + stringValue(v.Index(i), indent+2, buf) + + if i < v.Len()-1 { + buf.WriteString("," + nl) + } + } + + buf.WriteString(nl + id + "]") + case reflect.Map: + buf.WriteString("{\n") + + for i, k := range v.MapKeys() { + buf.WriteString(strings.Repeat(" ", indent+2)) + buf.WriteString(k.String() + ": ") + stringValue(v.MapIndex(k), indent+2, buf) + + if i < v.Len()-1 { + buf.WriteString(",\n") + } + } + + buf.WriteString("\n" + strings.Repeat(" ", indent) + "}") + default: + format := "%v" + switch v.Interface().(type) { + case string: + format = "%q" + } + fmt.Fprintf(buf, format, v.Interface()) + } +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/client/client.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/client/client.go new file mode 100644 index 0000000..c8d0564 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/client/client.go @@ -0,0 +1,120 @@ +package client + +import ( + "fmt" + "io/ioutil" + "net/http/httputil" + + "github.com/aws/aws-sdk-go/aws" + "github.com/aws/aws-sdk-go/aws/client/metadata" + "github.com/aws/aws-sdk-go/aws/request" +) + +// A Config provides configuration to a service client instance. +type Config struct { + Config *aws.Config + Handlers request.Handlers + Endpoint, SigningRegion string +} + +// ConfigProvider provides a generic way for a service client to receive +// the ClientConfig without circular dependencies. +type ConfigProvider interface { + ClientConfig(serviceName string, cfgs ...*aws.Config) Config +} + +// A Client implements the base client request and response handling +// used by all service clients. +type Client struct { + request.Retryer + metadata.ClientInfo + + Config aws.Config + Handlers request.Handlers +} + +// New will return a pointer to a new initialized service client. +func New(cfg aws.Config, info metadata.ClientInfo, handlers request.Handlers, options ...func(*Client)) *Client { + svc := &Client{ + Config: cfg, + ClientInfo: info, + Handlers: handlers, + } + + switch retryer, ok := cfg.Retryer.(request.Retryer); { + case ok: + svc.Retryer = retryer + case cfg.Retryer != nil && cfg.Logger != nil: + s := fmt.Sprintf("WARNING: %T does not implement request.Retryer; using DefaultRetryer instead", cfg.Retryer) + cfg.Logger.Log(s) + fallthrough + default: + maxRetries := aws.IntValue(cfg.MaxRetries) + if cfg.MaxRetries == nil || maxRetries == aws.UseServiceDefaultRetries { + maxRetries = 3 + } + svc.Retryer = DefaultRetryer{NumMaxRetries: maxRetries} + } + + svc.AddDebugHandlers() + + for _, option := range options { + option(svc) + } + + return svc +} + +// NewRequest returns a new Request pointer for the service API +// operation and parameters. +func (c *Client) NewRequest(operation *request.Operation, params interface{}, data interface{}) *request.Request { + return request.New(c.Config, c.ClientInfo, c.Handlers, c.Retryer, operation, params, data) +} + +// AddDebugHandlers injects debug logging handlers into the service to log request +// debug information. +func (c *Client) AddDebugHandlers() { + if !c.Config.LogLevel.AtLeast(aws.LogDebug) { + return + } + + c.Handlers.Send.PushFront(logRequest) + c.Handlers.Send.PushBack(logResponse) +} + +const logReqMsg = `DEBUG: Request %s/%s Details: +---[ REQUEST POST-SIGN ]----------------------------- +%s +-----------------------------------------------------` + +func logRequest(r *request.Request) { + logBody := r.Config.LogLevel.Matches(aws.LogDebugWithHTTPBody) + dumpedBody, _ := httputil.DumpRequestOut(r.HTTPRequest, logBody) + + if logBody { + // Reset the request body because dumpRequest will re-wrap the r.HTTPRequest's + // Body as a NoOpCloser and will not be reset after read by the HTTP + // client reader. + r.Body.Seek(r.BodyStart, 0) + r.HTTPRequest.Body = ioutil.NopCloser(r.Body) + } + + r.Config.Logger.Log(fmt.Sprintf(logReqMsg, r.ClientInfo.ServiceName, r.Operation.Name, string(dumpedBody))) +} + +const logRespMsg = `DEBUG: Response %s/%s Details: +---[ RESPONSE ]-------------------------------------- +%s +-----------------------------------------------------` + +func logResponse(r *request.Request) { + var msg = "no response data" + if r.HTTPResponse != nil { + logBody := r.Config.LogLevel.Matches(aws.LogDebugWithHTTPBody) + dumpedBody, _ := httputil.DumpResponse(r.HTTPResponse, logBody) + msg = string(dumpedBody) + } else if r.Error != nil { + msg = r.Error.Error() + } + r.Config.Logger.Log(fmt.Sprintf(logRespMsg, r.ClientInfo.ServiceName, r.Operation.Name, msg)) +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/client/default_retryer.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/client/default_retryer.go new file mode 100644 index 0000000..24d39ce --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/client/default_retryer.go @@ -0,0 +1,45 @@ +package client + +import ( + "math" + "math/rand" + "time" + + "github.com/aws/aws-sdk-go/aws/request" +) + +// DefaultRetryer implements basic retry logic using exponential backoff for +// most services. If you want to implement custom retry logic, implement the +// request.Retryer interface or create a structure type that composes this +// struct and override the specific methods. For example, to override only +// the MaxRetries method: +// +// type retryer struct { +// service.DefaultRetryer +// } +// +// // This implementation always has 100 max retries +// func (d retryer) MaxRetries() uint { return 100 } +type DefaultRetryer struct { + NumMaxRetries int +} + +// MaxRetries returns the number of maximum returns the service will use to make +// an individual API request. +func (d DefaultRetryer) MaxRetries() int { + return d.NumMaxRetries +} + +// RetryRules returns the delay duration before retrying this request again +func (d DefaultRetryer) RetryRules(r *request.Request) time.Duration { + delay := int(math.Pow(2, float64(r.RetryCount))) * (rand.Intn(30) + 30) + return time.Duration(delay) * time.Millisecond +} + +// ShouldRetry returns if the request should be retried. +func (d DefaultRetryer) ShouldRetry(r *request.Request) bool { + if r.HTTPResponse.StatusCode >= 500 { + return true + } + return r.IsErrorRetryable() +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/client/metadata/client_info.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/client/metadata/client_info.go new file mode 100644 index 0000000..4778056 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/client/metadata/client_info.go @@ -0,0 +1,12 @@ +package metadata + +// ClientInfo wraps immutable data from the client.Client structure. +type ClientInfo struct { + ServiceName string + APIVersion string + Endpoint string + SigningName string + SigningRegion string + JSONVersion string + TargetPrefix string +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/config.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/config.go new file mode 100644 index 0000000..9e83e92 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/config.go @@ -0,0 +1,311 @@ +package aws + +import ( + "net/http" + "time" + + "github.com/aws/aws-sdk-go/aws/credentials" +) + +// UseServiceDefaultRetries instructs the config to use the service's own default +// number of retries. This will be the default action if Config.MaxRetries +// is nil also. +const UseServiceDefaultRetries = -1 + +// RequestRetryer is an alias for a type that implements the request.Retryer interface. +type RequestRetryer interface{} + +// A Config provides service configuration for service clients. By default, +// all clients will use the {defaults.DefaultConfig} structure. +type Config struct { + // Enables verbose error printing of all credential chain errors. + // Should be used when wanting to see all errors while attempting to retreive + // credentials. + CredentialsChainVerboseErrors *bool + + // The credentials object to use when signing requests. Defaults to + // a chain of credential providers to search for credentials in environment + // variables, shared credential file, and EC2 Instance Roles. + Credentials *credentials.Credentials + + // An optional endpoint URL (hostname only or fully qualified URI) + // that overrides the default generated endpoint for a client. Set this + // to `""` to use the default generated endpoint. + // + // @note You must still provide a `Region` value when specifying an + // endpoint for a client. + Endpoint *string + + // The region to send requests to. This parameter is required and must + // be configured globally or on a per-client basis unless otherwise + // noted. A full list of regions is found in the "Regions and Endpoints" + // document. + // + // @see http://docs.aws.amazon.com/general/latest/gr/rande.html + // AWS Regions and Endpoints + Region *string + + // Set this to `true` to disable SSL when sending requests. Defaults + // to `false`. + DisableSSL *bool + + // The HTTP client to use when sending requests. Defaults to + // `http.DefaultClient`. + HTTPClient *http.Client + + // An integer value representing the logging level. The default log level + // is zero (LogOff), which represents no logging. To enable logging set + // to a LogLevel Value. + LogLevel *LogLevelType + + // The logger writer interface to write logging messages to. Defaults to + // standard out. + Logger Logger + + // The maximum number of times that a request will be retried for failures. + // Defaults to -1, which defers the max retry setting to the service specific + // configuration. + MaxRetries *int + + // Retryer guides how HTTP requests should be retried in case of recoverable failures. + // + // When nil or the value does not implement the request.Retryer interface, + // the request.DefaultRetryer will be used. + // + // When both Retryer and MaxRetries are non-nil, the former is used and + // the latter ignored. + // + // To set the Retryer field in a type-safe manner and with chaining, use + // the request.WithRetryer helper function: + // + // cfg := request.WithRetryer(aws.NewConfig(), myRetryer) + // + Retryer RequestRetryer + + // Disables semantic parameter validation, which validates input for missing + // required fields and/or other semantic request input errors. + DisableParamValidation *bool + + // Disables the computation of request and response checksums, e.g., + // CRC32 checksums in Amazon DynamoDB. + DisableComputeChecksums *bool + + // Set this to `true` to force the request to use path-style addressing, + // i.e., `http://s3.amazonaws.com/BUCKET/KEY`. By default, the S3 client will + // use virtual hosted bucket addressing when possible + // (`http://BUCKET.s3.amazonaws.com/KEY`). + // + // @note This configuration option is specific to the Amazon S3 service. + // @see http://docs.aws.amazon.com/AmazonS3/latest/dev/VirtualHosting.html + // Amazon S3: Virtual Hosting of Buckets + S3ForcePathStyle *bool + + // Set this to `true` to disable the EC2Metadata client from overriding the + // default http.Client's Timeout. This is helpful if you do not want the EC2Metadata + // client to create a new http.Client. This options is only meaningful if you're not + // already using a custom HTTP client with the SDK. Enabled by default. + // + // Must be set and provided to the session.New() in order to disable the EC2Metadata + // overriding the timeout for default credentials chain. + // + // Example: + // sess := session.New(aws.NewConfig().WithEC2MetadataDiableTimeoutOverride(true)) + // svc := s3.New(sess) + // + EC2MetadataDisableTimeoutOverride *bool + + SleepDelay func(time.Duration) +} + +// NewConfig returns a new Config pointer that can be chained with builder methods to +// set multiple configuration values inline without using pointers. +// +// svc := s3.New(aws.NewConfig().WithRegion("us-west-2").WithMaxRetries(10)) +// +func NewConfig() *Config { + return &Config{} +} + +// WithCredentialsChainVerboseErrors sets a config verbose errors boolean and returning +// a Config pointer. +func (c *Config) WithCredentialsChainVerboseErrors(verboseErrs bool) *Config { + c.CredentialsChainVerboseErrors = &verboseErrs + return c +} + +// WithCredentials sets a config Credentials value returning a Config pointer +// for chaining. +func (c *Config) WithCredentials(creds *credentials.Credentials) *Config { + c.Credentials = creds + return c +} + +// WithEndpoint sets a config Endpoint value returning a Config pointer for +// chaining. +func (c *Config) WithEndpoint(endpoint string) *Config { + c.Endpoint = &endpoint + return c +} + +// WithRegion sets a config Region value returning a Config pointer for +// chaining. +func (c *Config) WithRegion(region string) *Config { + c.Region = ®ion + return c +} + +// WithDisableSSL sets a config DisableSSL value returning a Config pointer +// for chaining. +func (c *Config) WithDisableSSL(disable bool) *Config { + c.DisableSSL = &disable + return c +} + +// WithHTTPClient sets a config HTTPClient value returning a Config pointer +// for chaining. +func (c *Config) WithHTTPClient(client *http.Client) *Config { + c.HTTPClient = client + return c +} + +// WithMaxRetries sets a config MaxRetries value returning a Config pointer +// for chaining. +func (c *Config) WithMaxRetries(max int) *Config { + c.MaxRetries = &max + return c +} + +// WithDisableParamValidation sets a config DisableParamValidation value +// returning a Config pointer for chaining. +func (c *Config) WithDisableParamValidation(disable bool) *Config { + c.DisableParamValidation = &disable + return c +} + +// WithDisableComputeChecksums sets a config DisableComputeChecksums value +// returning a Config pointer for chaining. +func (c *Config) WithDisableComputeChecksums(disable bool) *Config { + c.DisableComputeChecksums = &disable + return c +} + +// WithLogLevel sets a config LogLevel value returning a Config pointer for +// chaining. +func (c *Config) WithLogLevel(level LogLevelType) *Config { + c.LogLevel = &level + return c +} + +// WithLogger sets a config Logger value returning a Config pointer for +// chaining. +func (c *Config) WithLogger(logger Logger) *Config { + c.Logger = logger + return c +} + +// WithS3ForcePathStyle sets a config S3ForcePathStyle value returning a Config +// pointer for chaining. +func (c *Config) WithS3ForcePathStyle(force bool) *Config { + c.S3ForcePathStyle = &force + return c +} + +// WithEC2MetadataDisableTimeoutOverride sets a config EC2MetadataDisableTimeoutOverride value +// returning a Config pointer for chaining. +func (c *Config) WithEC2MetadataDisableTimeoutOverride(enable bool) *Config { + c.EC2MetadataDisableTimeoutOverride = &enable + return c +} + +// WithSleepDelay overrides the function used to sleep while waiting for the +// next retry. Defaults to time.Sleep. +func (c *Config) WithSleepDelay(fn func(time.Duration)) *Config { + c.SleepDelay = fn + return c +} + +// MergeIn merges the passed in configs into the existing config object. +func (c *Config) MergeIn(cfgs ...*Config) { + for _, other := range cfgs { + mergeInConfig(c, other) + } +} + +func mergeInConfig(dst *Config, other *Config) { + if other == nil { + return + } + + if other.CredentialsChainVerboseErrors != nil { + dst.CredentialsChainVerboseErrors = other.CredentialsChainVerboseErrors + } + + if other.Credentials != nil { + dst.Credentials = other.Credentials + } + + if other.Endpoint != nil { + dst.Endpoint = other.Endpoint + } + + if other.Region != nil { + dst.Region = other.Region + } + + if other.DisableSSL != nil { + dst.DisableSSL = other.DisableSSL + } + + if other.HTTPClient != nil { + dst.HTTPClient = other.HTTPClient + } + + if other.LogLevel != nil { + dst.LogLevel = other.LogLevel + } + + if other.Logger != nil { + dst.Logger = other.Logger + } + + if other.MaxRetries != nil { + dst.MaxRetries = other.MaxRetries + } + + if other.Retryer != nil { + dst.Retryer = other.Retryer + } + + if other.DisableParamValidation != nil { + dst.DisableParamValidation = other.DisableParamValidation + } + + if other.DisableComputeChecksums != nil { + dst.DisableComputeChecksums = other.DisableComputeChecksums + } + + if other.S3ForcePathStyle != nil { + dst.S3ForcePathStyle = other.S3ForcePathStyle + } + + if other.EC2MetadataDisableTimeoutOverride != nil { + dst.EC2MetadataDisableTimeoutOverride = other.EC2MetadataDisableTimeoutOverride + } + + if other.SleepDelay != nil { + dst.SleepDelay = other.SleepDelay + } +} + +// Copy will return a shallow copy of the Config object. If any additional +// configurations are provided they will be merged into the new config returned. +func (c *Config) Copy(cfgs ...*Config) *Config { + dst := &Config{} + dst.MergeIn(c) + + for _, cfg := range cfgs { + dst.MergeIn(cfg) + } + + return dst +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/convert_types.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/convert_types.go new file mode 100644 index 0000000..d6a7b08 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/convert_types.go @@ -0,0 +1,357 @@ +package aws + +import "time" + +// String returns a pointer to of the string value passed in. +func String(v string) *string { + return &v +} + +// StringValue returns the value of the string pointer passed in or +// "" if the pointer is nil. +func StringValue(v *string) string { + if v != nil { + return *v + } + return "" +} + +// StringSlice converts a slice of string values into a slice of +// string pointers +func StringSlice(src []string) []*string { + dst := make([]*string, len(src)) + for i := 0; i < len(src); i++ { + dst[i] = &(src[i]) + } + return dst +} + +// StringValueSlice converts a slice of string pointers into a slice of +// string values +func StringValueSlice(src []*string) []string { + dst := make([]string, len(src)) + for i := 0; i < len(src); i++ { + if src[i] != nil { + dst[i] = *(src[i]) + } + } + return dst +} + +// StringMap converts a string map of string values into a string +// map of string pointers +func StringMap(src map[string]string) map[string]*string { + dst := make(map[string]*string) + for k, val := range src { + v := val + dst[k] = &v + } + return dst +} + +// StringValueMap converts a string map of string pointers into a string +// map of string values +func StringValueMap(src map[string]*string) map[string]string { + dst := make(map[string]string) + for k, val := range src { + if val != nil { + dst[k] = *val + } + } + return dst +} + +// Bool returns a pointer to of the bool value passed in. +func Bool(v bool) *bool { + return &v +} + +// BoolValue returns the value of the bool pointer passed in or +// false if the pointer is nil. +func BoolValue(v *bool) bool { + if v != nil { + return *v + } + return false +} + +// BoolSlice converts a slice of bool values into a slice of +// bool pointers +func BoolSlice(src []bool) []*bool { + dst := make([]*bool, len(src)) + for i := 0; i < len(src); i++ { + dst[i] = &(src[i]) + } + return dst +} + +// BoolValueSlice converts a slice of bool pointers into a slice of +// bool values +func BoolValueSlice(src []*bool) []bool { + dst := make([]bool, len(src)) + for i := 0; i < len(src); i++ { + if src[i] != nil { + dst[i] = *(src[i]) + } + } + return dst +} + +// BoolMap converts a string map of bool values into a string +// map of bool pointers +func BoolMap(src map[string]bool) map[string]*bool { + dst := make(map[string]*bool) + for k, val := range src { + v := val + dst[k] = &v + } + return dst +} + +// BoolValueMap converts a string map of bool pointers into a string +// map of bool values +func BoolValueMap(src map[string]*bool) map[string]bool { + dst := make(map[string]bool) + for k, val := range src { + if val != nil { + dst[k] = *val + } + } + return dst +} + +// Int returns a pointer to of the int value passed in. +func Int(v int) *int { + return &v +} + +// IntValue returns the value of the int pointer passed in or +// 0 if the pointer is nil. +func IntValue(v *int) int { + if v != nil { + return *v + } + return 0 +} + +// IntSlice converts a slice of int values into a slice of +// int pointers +func IntSlice(src []int) []*int { + dst := make([]*int, len(src)) + for i := 0; i < len(src); i++ { + dst[i] = &(src[i]) + } + return dst +} + +// IntValueSlice converts a slice of int pointers into a slice of +// int values +func IntValueSlice(src []*int) []int { + dst := make([]int, len(src)) + for i := 0; i < len(src); i++ { + if src[i] != nil { + dst[i] = *(src[i]) + } + } + return dst +} + +// IntMap converts a string map of int values into a string +// map of int pointers +func IntMap(src map[string]int) map[string]*int { + dst := make(map[string]*int) + for k, val := range src { + v := val + dst[k] = &v + } + return dst +} + +// IntValueMap converts a string map of int pointers into a string +// map of int values +func IntValueMap(src map[string]*int) map[string]int { + dst := make(map[string]int) + for k, val := range src { + if val != nil { + dst[k] = *val + } + } + return dst +} + +// Int64 returns a pointer to of the int64 value passed in. +func Int64(v int64) *int64 { + return &v +} + +// Int64Value returns the value of the int64 pointer passed in or +// 0 if the pointer is nil. +func Int64Value(v *int64) int64 { + if v != nil { + return *v + } + return 0 +} + +// Int64Slice converts a slice of int64 values into a slice of +// int64 pointers +func Int64Slice(src []int64) []*int64 { + dst := make([]*int64, len(src)) + for i := 0; i < len(src); i++ { + dst[i] = &(src[i]) + } + return dst +} + +// Int64ValueSlice converts a slice of int64 pointers into a slice of +// int64 values +func Int64ValueSlice(src []*int64) []int64 { + dst := make([]int64, len(src)) + for i := 0; i < len(src); i++ { + if src[i] != nil { + dst[i] = *(src[i]) + } + } + return dst +} + +// Int64Map converts a string map of int64 values into a string +// map of int64 pointers +func Int64Map(src map[string]int64) map[string]*int64 { + dst := make(map[string]*int64) + for k, val := range src { + v := val + dst[k] = &v + } + return dst +} + +// Int64ValueMap converts a string map of int64 pointers into a string +// map of int64 values +func Int64ValueMap(src map[string]*int64) map[string]int64 { + dst := make(map[string]int64) + for k, val := range src { + if val != nil { + dst[k] = *val + } + } + return dst +} + +// Float64 returns a pointer to of the float64 value passed in. +func Float64(v float64) *float64 { + return &v +} + +// Float64Value returns the value of the float64 pointer passed in or +// 0 if the pointer is nil. +func Float64Value(v *float64) float64 { + if v != nil { + return *v + } + return 0 +} + +// Float64Slice converts a slice of float64 values into a slice of +// float64 pointers +func Float64Slice(src []float64) []*float64 { + dst := make([]*float64, len(src)) + for i := 0; i < len(src); i++ { + dst[i] = &(src[i]) + } + return dst +} + +// Float64ValueSlice converts a slice of float64 pointers into a slice of +// float64 values +func Float64ValueSlice(src []*float64) []float64 { + dst := make([]float64, len(src)) + for i := 0; i < len(src); i++ { + if src[i] != nil { + dst[i] = *(src[i]) + } + } + return dst +} + +// Float64Map converts a string map of float64 values into a string +// map of float64 pointers +func Float64Map(src map[string]float64) map[string]*float64 { + dst := make(map[string]*float64) + for k, val := range src { + v := val + dst[k] = &v + } + return dst +} + +// Float64ValueMap converts a string map of float64 pointers into a string +// map of float64 values +func Float64ValueMap(src map[string]*float64) map[string]float64 { + dst := make(map[string]float64) + for k, val := range src { + if val != nil { + dst[k] = *val + } + } + return dst +} + +// Time returns a pointer to of the time.Time value passed in. +func Time(v time.Time) *time.Time { + return &v +} + +// TimeValue returns the value of the time.Time pointer passed in or +// time.Time{} if the pointer is nil. +func TimeValue(v *time.Time) time.Time { + if v != nil { + return *v + } + return time.Time{} +} + +// TimeSlice converts a slice of time.Time values into a slice of +// time.Time pointers +func TimeSlice(src []time.Time) []*time.Time { + dst := make([]*time.Time, len(src)) + for i := 0; i < len(src); i++ { + dst[i] = &(src[i]) + } + return dst +} + +// TimeValueSlice converts a slice of time.Time pointers into a slice of +// time.Time values +func TimeValueSlice(src []*time.Time) []time.Time { + dst := make([]time.Time, len(src)) + for i := 0; i < len(src); i++ { + if src[i] != nil { + dst[i] = *(src[i]) + } + } + return dst +} + +// TimeMap converts a string map of time.Time values into a string +// map of time.Time pointers +func TimeMap(src map[string]time.Time) map[string]*time.Time { + dst := make(map[string]*time.Time) + for k, val := range src { + v := val + dst[k] = &v + } + return dst +} + +// TimeValueMap converts a string map of time.Time pointers into a string +// map of time.Time values +func TimeValueMap(src map[string]*time.Time) map[string]time.Time { + dst := make(map[string]time.Time) + for k, val := range src { + if val != nil { + dst[k] = *val + } + } + return dst +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/corehandlers/handlers.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/corehandlers/handlers.go new file mode 100644 index 0000000..1d3e656 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/corehandlers/handlers.go @@ -0,0 +1,139 @@ +package corehandlers + +import ( + "bytes" + "fmt" + "io" + "io/ioutil" + "net/http" + "net/url" + "regexp" + "runtime" + "strconv" + + "github.com/aws/aws-sdk-go/aws" + "github.com/aws/aws-sdk-go/aws/awserr" + "github.com/aws/aws-sdk-go/aws/request" +) + +// Interface for matching types which also have a Len method. +type lener interface { + Len() int +} + +// BuildContentLengthHandler builds the content length of a request based on the body, +// or will use the HTTPRequest.Header's "Content-Length" if defined. If unable +// to determine request body length and no "Content-Length" was specified it will panic. +var BuildContentLengthHandler = request.NamedHandler{Name: "core.BuildContentLengthHandler", Fn: func(r *request.Request) { + if slength := r.HTTPRequest.Header.Get("Content-Length"); slength != "" { + length, _ := strconv.ParseInt(slength, 10, 64) + r.HTTPRequest.ContentLength = length + return + } + + var length int64 + switch body := r.Body.(type) { + case nil: + length = 0 + case lener: + length = int64(body.Len()) + case io.Seeker: + r.BodyStart, _ = body.Seek(0, 1) + end, _ := body.Seek(0, 2) + body.Seek(r.BodyStart, 0) // make sure to seek back to original location + length = end - r.BodyStart + default: + panic("Cannot get length of body, must provide `ContentLength`") + } + + r.HTTPRequest.ContentLength = length + r.HTTPRequest.Header.Set("Content-Length", fmt.Sprintf("%d", length)) +}} + +// SDKVersionUserAgentHandler is a request handler for adding the SDK Version to the user agent. +var SDKVersionUserAgentHandler = request.NamedHandler{ + Name: "core.SDKVersionUserAgentHandler", + Fn: request.MakeAddToUserAgentHandler(aws.SDKName, aws.SDKVersion, + runtime.Version(), runtime.GOOS, runtime.GOARCH), +} + +var reStatusCode = regexp.MustCompile(`^(\d{3})`) + +// SendHandler is a request handler to send service request using HTTP client. +var SendHandler = request.NamedHandler{Name: "core.SendHandler", Fn: func(r *request.Request) { + var err error + r.HTTPResponse, err = r.Config.HTTPClient.Do(r.HTTPRequest) + if err != nil { + // Capture the case where url.Error is returned for error processing + // response. e.g. 301 without location header comes back as string + // error and r.HTTPResponse is nil. Other url redirect errors will + // comeback in a similar method. + if e, ok := err.(*url.Error); ok && e.Err != nil { + if s := reStatusCode.FindStringSubmatch(e.Err.Error()); s != nil { + code, _ := strconv.ParseInt(s[1], 10, 64) + r.HTTPResponse = &http.Response{ + StatusCode: int(code), + Status: http.StatusText(int(code)), + Body: ioutil.NopCloser(bytes.NewReader([]byte{})), + } + return + } + } + if r.HTTPResponse == nil { + // Add a dummy request response object to ensure the HTTPResponse + // value is consistent. + r.HTTPResponse = &http.Response{ + StatusCode: int(0), + Status: http.StatusText(int(0)), + Body: ioutil.NopCloser(bytes.NewReader([]byte{})), + } + } + // Catch all other request errors. + r.Error = awserr.New("RequestError", "send request failed", err) + r.Retryable = aws.Bool(true) // network errors are retryable + } +}} + +// ValidateResponseHandler is a request handler to validate service response. +var ValidateResponseHandler = request.NamedHandler{Name: "core.ValidateResponseHandler", Fn: func(r *request.Request) { + if r.HTTPResponse.StatusCode == 0 || r.HTTPResponse.StatusCode >= 300 { + // this may be replaced by an UnmarshalError handler + r.Error = awserr.New("UnknownError", "unknown error", nil) + } +}} + +// AfterRetryHandler performs final checks to determine if the request should +// be retried and how long to delay. +var AfterRetryHandler = request.NamedHandler{Name: "core.AfterRetryHandler", Fn: func(r *request.Request) { + // If one of the other handlers already set the retry state + // we don't want to override it based on the service's state + if r.Retryable == nil { + r.Retryable = aws.Bool(r.ShouldRetry(r)) + } + + if r.WillRetry() { + r.RetryDelay = r.RetryRules(r) + r.Config.SleepDelay(r.RetryDelay) + + // when the expired token exception occurs the credentials + // need to be expired locally so that the next request to + // get credentials will trigger a credentials refresh. + if r.IsErrorExpired() { + r.Config.Credentials.Expire() + } + + r.RetryCount++ + r.Error = nil + } +}} + +// ValidateEndpointHandler is a request handler to validate a request had the +// appropriate Region and Endpoint set. Will set r.Error if the endpoint or +// region is not valid. +var ValidateEndpointHandler = request.NamedHandler{Name: "core.ValidateEndpointHandler", Fn: func(r *request.Request) { + if r.ClientInfo.SigningRegion == "" && aws.StringValue(r.Config.Region) == "" { + r.Error = aws.ErrMissingRegion + } else if r.ClientInfo.Endpoint == "" { + r.Error = aws.ErrMissingEndpoint + } +}} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/corehandlers/param_validator.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/corehandlers/param_validator.go new file mode 100644 index 0000000..ea07580 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/corehandlers/param_validator.go @@ -0,0 +1,153 @@ +package corehandlers + +import ( + "fmt" + "reflect" + "strconv" + "strings" + + "github.com/aws/aws-sdk-go/aws/awserr" + "github.com/aws/aws-sdk-go/aws/request" +) + +// ValidateParametersHandler is a request handler to validate the input parameters. +// Validating parameters only has meaning if done prior to the request being sent. +var ValidateParametersHandler = request.NamedHandler{Name: "core.ValidateParametersHandler", Fn: func(r *request.Request) { + if r.ParamsFilled() { + v := validator{errors: []string{}} + v.validateAny(reflect.ValueOf(r.Params), "") + + if count := len(v.errors); count > 0 { + format := "%d validation errors:\n- %s" + msg := fmt.Sprintf(format, count, strings.Join(v.errors, "\n- ")) + r.Error = awserr.New("InvalidParameter", msg, nil) + } + } +}} + +// A validator validates values. Collects validations errors which occurs. +type validator struct { + errors []string +} + +// There's no validation to be done on the contents of []byte values. Prepare +// to check validateAny arguments against that type so we can quickly skip +// them. +var byteSliceType = reflect.TypeOf([]byte(nil)) + +// validateAny will validate any struct, slice or map type. All validations +// are also performed recursively for nested types. +func (v *validator) validateAny(value reflect.Value, path string) { + value = reflect.Indirect(value) + if !value.IsValid() { + return + } + + switch value.Kind() { + case reflect.Struct: + v.validateStruct(value, path) + case reflect.Slice: + if value.Type() == byteSliceType { + // We don't need to validate the contents of []byte. + return + } + for i := 0; i < value.Len(); i++ { + v.validateAny(value.Index(i), path+fmt.Sprintf("[%d]", i)) + } + case reflect.Map: + for _, n := range value.MapKeys() { + v.validateAny(value.MapIndex(n), path+fmt.Sprintf("[%q]", n.String())) + } + } +} + +// validateStruct will validate the struct value's fields. If the structure has +// nested types those types will be validated also. +func (v *validator) validateStruct(value reflect.Value, path string) { + prefix := "." + if path == "" { + prefix = "" + } + + for i := 0; i < value.Type().NumField(); i++ { + f := value.Type().Field(i) + if strings.ToLower(f.Name[0:1]) == f.Name[0:1] { + continue + } + fvalue := value.FieldByName(f.Name) + + err := validateField(f, fvalue, validateFieldRequired, validateFieldMin) + if err != nil { + v.errors = append(v.errors, fmt.Sprintf("%s: %s", err.Error(), path+prefix+f.Name)) + continue + } + + v.validateAny(fvalue, path+prefix+f.Name) + } +} + +type validatorFunc func(f reflect.StructField, fvalue reflect.Value) error + +func validateField(f reflect.StructField, fvalue reflect.Value, funcs ...validatorFunc) error { + for _, fn := range funcs { + if err := fn(f, fvalue); err != nil { + return err + } + } + return nil +} + +// Validates that a field has a valid value provided for required fields. +func validateFieldRequired(f reflect.StructField, fvalue reflect.Value) error { + if f.Tag.Get("required") == "" { + return nil + } + + switch fvalue.Kind() { + case reflect.Ptr, reflect.Slice, reflect.Map: + if fvalue.IsNil() { + return fmt.Errorf("missing required parameter") + } + default: + if !fvalue.IsValid() { + return fmt.Errorf("missing required parameter") + } + } + return nil +} + +// Validates that if a value is provided for a field, that value must be at +// least a minimum length. +func validateFieldMin(f reflect.StructField, fvalue reflect.Value) error { + minStr := f.Tag.Get("min") + if minStr == "" { + return nil + } + min, _ := strconv.ParseInt(minStr, 10, 64) + + kind := fvalue.Kind() + if kind == reflect.Ptr { + if fvalue.IsNil() { + return nil + } + fvalue = fvalue.Elem() + } + + switch fvalue.Kind() { + case reflect.String: + if int64(fvalue.Len()) < min { + return fmt.Errorf("field too short, minimum length %d", min) + } + case reflect.Slice, reflect.Map: + if fvalue.IsNil() { + return nil + } + if int64(fvalue.Len()) < min { + return fmt.Errorf("field too short, minimum length %d", min) + } + + // TODO min can also apply to number minimum value. + + } + return nil +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/chain_provider.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/chain_provider.go new file mode 100644 index 0000000..857311f --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/chain_provider.go @@ -0,0 +1,100 @@ +package credentials + +import ( + "github.com/aws/aws-sdk-go/aws/awserr" +) + +var ( + // ErrNoValidProvidersFoundInChain Is returned when there are no valid + // providers in the ChainProvider. + // + // This has been deprecated. For verbose error messaging set + // aws.Config.CredentialsChainVerboseErrors to true + // + // @readonly + ErrNoValidProvidersFoundInChain = awserr.New("NoCredentialProviders", + `no valid providers in chain. Deprecated. + For verbose messaging see aws.Config.CredentialsChainVerboseErrors`, + nil) +) + +// A ChainProvider will search for a provider which returns credentials +// and cache that provider until Retrieve is called again. +// +// The ChainProvider provides a way of chaining multiple providers together +// which will pick the first available using priority order of the Providers +// in the list. +// +// If none of the Providers retrieve valid credentials Value, ChainProvider's +// Retrieve() will return the error ErrNoValidProvidersFoundInChain. +// +// If a Provider is found which returns valid credentials Value ChainProvider +// will cache that Provider for all calls to IsExpired(), until Retrieve is +// called again. +// +// Example of ChainProvider to be used with an EnvProvider and EC2RoleProvider. +// In this example EnvProvider will first check if any credentials are available +// vai the environment variables. If there are none ChainProvider will check +// the next Provider in the list, EC2RoleProvider in this case. If EC2RoleProvider +// does not return any credentials ChainProvider will return the error +// ErrNoValidProvidersFoundInChain +// +// creds := NewChainCredentials( +// []Provider{ +// &EnvProvider{}, +// &EC2RoleProvider{ +// Client: ec2metadata.New(sess), +// }, +// }) +// +// // Usage of ChainCredentials with aws.Config +// svc := ec2.New(&aws.Config{Credentials: creds}) +// +type ChainProvider struct { + Providers []Provider + curr Provider + VerboseErrors bool +} + +// NewChainCredentials returns a pointer to a new Credentials object +// wrapping a chain of providers. +func NewChainCredentials(providers []Provider) *Credentials { + return NewCredentials(&ChainProvider{ + Providers: append([]Provider{}, providers...), + }) +} + +// Retrieve returns the credentials value or error if no provider returned +// without error. +// +// If a provider is found it will be cached and any calls to IsExpired() +// will return the expired state of the cached provider. +func (c *ChainProvider) Retrieve() (Value, error) { + var errs []error + for _, p := range c.Providers { + creds, err := p.Retrieve() + if err == nil { + c.curr = p + return creds, nil + } + errs = append(errs, err) + } + c.curr = nil + + var err error + err = ErrNoValidProvidersFoundInChain + if c.VerboseErrors { + err = awserr.NewBatchError("NoCredentialProviders", "no valid providers in chain", errs) + } + return Value{}, err +} + +// IsExpired will returned the expired state of the currently cached provider +// if there is one. If there is no current provider, true will be returned. +func (c *ChainProvider) IsExpired() bool { + if c.curr != nil { + return c.curr.IsExpired() + } + + return true +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/credentials.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/credentials.go new file mode 100644 index 0000000..7b8ebf5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/credentials.go @@ -0,0 +1,223 @@ +// Package credentials provides credential retrieval and management +// +// The Credentials is the primary method of getting access to and managing +// credentials Values. Using dependency injection retrieval of the credential +// values is handled by a object which satisfies the Provider interface. +// +// By default the Credentials.Get() will cache the successful result of a +// Provider's Retrieve() until Provider.IsExpired() returns true. At which +// point Credentials will call Provider's Retrieve() to get new credential Value. +// +// The Provider is responsible for determining when credentials Value have expired. +// It is also important to note that Credentials will always call Retrieve the +// first time Credentials.Get() is called. +// +// Example of using the environment variable credentials. +// +// creds := NewEnvCredentials() +// +// // Retrieve the credentials value +// credValue, err := creds.Get() +// if err != nil { +// // handle error +// } +// +// Example of forcing credentials to expire and be refreshed on the next Get(). +// This may be helpful to proactively expire credentials and refresh them sooner +// than they would naturally expire on their own. +// +// creds := NewCredentials(&EC2RoleProvider{}) +// creds.Expire() +// credsValue, err := creds.Get() +// // New credentials will be retrieved instead of from cache. +// +// +// Custom Provider +// +// Each Provider built into this package also provides a helper method to generate +// a Credentials pointer setup with the provider. To use a custom Provider just +// create a type which satisfies the Provider interface and pass it to the +// NewCredentials method. +// +// type MyProvider struct{} +// func (m *MyProvider) Retrieve() (Value, error) {...} +// func (m *MyProvider) IsExpired() bool {...} +// +// creds := NewCredentials(&MyProvider{}) +// credValue, err := creds.Get() +// +package credentials + +import ( + "sync" + "time" +) + +// AnonymousCredentials is an empty Credential object that can be used as +// dummy placeholder credentials for requests that do not need signed. +// +// This Credentials can be used to configure a service to not sign requests +// when making service API calls. For example, when accessing public +// s3 buckets. +// +// svc := s3.New(&aws.Config{Credentials: AnonymousCredentials}) +// // Access public S3 buckets. +// +// @readonly +var AnonymousCredentials = NewStaticCredentials("", "", "") + +// A Value is the AWS credentials value for individual credential fields. +type Value struct { + // AWS Access key ID + AccessKeyID string + + // AWS Secret Access Key + SecretAccessKey string + + // AWS Session Token + SessionToken string + + // Provider used to get credentials + ProviderName string +} + +// A Provider is the interface for any component which will provide credentials +// Value. A provider is required to manage its own Expired state, and what to +// be expired means. +// +// The Provider should not need to implement its own mutexes, because +// that will be managed by Credentials. +type Provider interface { + // Refresh returns nil if it successfully retrieved the value. + // Error is returned if the value were not obtainable, or empty. + Retrieve() (Value, error) + + // IsExpired returns if the credentials are no longer valid, and need + // to be retrieved. + IsExpired() bool +} + +// A Expiry provides shared expiration logic to be used by credentials +// providers to implement expiry functionality. +// +// The best method to use this struct is as an anonymous field within the +// provider's struct. +// +// Example: +// type EC2RoleProvider struct { +// Expiry +// ... +// } +type Expiry struct { + // The date/time when to expire on + expiration time.Time + + // If set will be used by IsExpired to determine the current time. + // Defaults to time.Now if CurrentTime is not set. Available for testing + // to be able to mock out the current time. + CurrentTime func() time.Time +} + +// SetExpiration sets the expiration IsExpired will check when called. +// +// If window is greater than 0 the expiration time will be reduced by the +// window value. +// +// Using a window is helpful to trigger credentials to expire sooner than +// the expiration time given to ensure no requests are made with expired +// tokens. +func (e *Expiry) SetExpiration(expiration time.Time, window time.Duration) { + e.expiration = expiration + if window > 0 { + e.expiration = e.expiration.Add(-window) + } +} + +// IsExpired returns if the credentials are expired. +func (e *Expiry) IsExpired() bool { + if e.CurrentTime == nil { + e.CurrentTime = time.Now + } + return e.expiration.Before(e.CurrentTime()) +} + +// A Credentials provides synchronous safe retrieval of AWS credentials Value. +// Credentials will cache the credentials value until they expire. Once the value +// expires the next Get will attempt to retrieve valid credentials. +// +// Credentials is safe to use across multiple goroutines and will manage the +// synchronous state so the Providers do not need to implement their own +// synchronization. +// +// The first Credentials.Get() will always call Provider.Retrieve() to get the +// first instance of the credentials Value. All calls to Get() after that +// will return the cached credentials Value until IsExpired() returns true. +type Credentials struct { + creds Value + forceRefresh bool + m sync.Mutex + + provider Provider +} + +// NewCredentials returns a pointer to a new Credentials with the provider set. +func NewCredentials(provider Provider) *Credentials { + return &Credentials{ + provider: provider, + forceRefresh: true, + } +} + +// Get returns the credentials value, or error if the credentials Value failed +// to be retrieved. +// +// Will return the cached credentials Value if it has not expired. If the +// credentials Value has expired the Provider's Retrieve() will be called +// to refresh the credentials. +// +// If Credentials.Expire() was called the credentials Value will be force +// expired, and the next call to Get() will cause them to be refreshed. +func (c *Credentials) Get() (Value, error) { + c.m.Lock() + defer c.m.Unlock() + + if c.isExpired() { + creds, err := c.provider.Retrieve() + if err != nil { + return Value{}, err + } + c.creds = creds + c.forceRefresh = false + } + + return c.creds, nil +} + +// Expire expires the credentials and forces them to be retrieved on the +// next call to Get(). +// +// This will override the Provider's expired state, and force Credentials +// to call the Provider's Retrieve(). +func (c *Credentials) Expire() { + c.m.Lock() + defer c.m.Unlock() + + c.forceRefresh = true +} + +// IsExpired returns if the credentials are no longer valid, and need +// to be retrieved. +// +// If the Credentials were forced to be expired with Expire() this will +// reflect that override. +func (c *Credentials) IsExpired() bool { + c.m.Lock() + defer c.m.Unlock() + + return c.isExpired() +} + +// isExpired helper method wrapping the definition of expired credentials. +func (c *Credentials) isExpired() bool { + return c.forceRefresh || c.provider.IsExpired() +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds/ec2_role_provider.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds/ec2_role_provider.go new file mode 100644 index 0000000..aa9d689 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds/ec2_role_provider.go @@ -0,0 +1,178 @@ +package ec2rolecreds + +import ( + "bufio" + "encoding/json" + "fmt" + "path" + "strings" + "time" + + "github.com/aws/aws-sdk-go/aws/awserr" + "github.com/aws/aws-sdk-go/aws/client" + "github.com/aws/aws-sdk-go/aws/credentials" + "github.com/aws/aws-sdk-go/aws/ec2metadata" +) + +// ProviderName provides a name of EC2Role provider +const ProviderName = "EC2RoleProvider" + +// A EC2RoleProvider retrieves credentials from the EC2 service, and keeps track if +// those credentials are expired. +// +// Example how to configure the EC2RoleProvider with custom http Client, Endpoint +// or ExpiryWindow +// +// p := &ec2rolecreds.EC2RoleProvider{ +// // Pass in a custom timeout to be used when requesting +// // IAM EC2 Role credentials. +// Client: ec2metadata.New(sess, aws.Config{ +// HTTPClient: &http.Client{Timeout: 10 * time.Second}, +// }), +// +// // Do not use early expiry of credentials. If a non zero value is +// // specified the credentials will be expired early +// ExpiryWindow: 0, +// } +type EC2RoleProvider struct { + credentials.Expiry + + // Required EC2Metadata client to use when connecting to EC2 metadata service. + Client *ec2metadata.EC2Metadata + + // ExpiryWindow will allow the credentials to trigger refreshing prior to + // the credentials actually expiring. This is beneficial so race conditions + // with expiring credentials do not cause request to fail unexpectedly + // due to ExpiredTokenException exceptions. + // + // So a ExpiryWindow of 10s would cause calls to IsExpired() to return true + // 10 seconds before the credentials are actually expired. + // + // If ExpiryWindow is 0 or less it will be ignored. + ExpiryWindow time.Duration +} + +// NewCredentials returns a pointer to a new Credentials object wrapping +// the EC2RoleProvider. Takes a ConfigProvider to create a EC2Metadata client. +// The ConfigProvider is satisfied by the session.Session type. +func NewCredentials(c client.ConfigProvider, options ...func(*EC2RoleProvider)) *credentials.Credentials { + p := &EC2RoleProvider{ + Client: ec2metadata.New(c), + } + + for _, option := range options { + option(p) + } + + return credentials.NewCredentials(p) +} + +// NewCredentialsWithClient returns a pointer to a new Credentials object wrapping +// the EC2RoleProvider. Takes a EC2Metadata client to use when connecting to EC2 +// metadata service. +func NewCredentialsWithClient(client *ec2metadata.EC2Metadata, options ...func(*EC2RoleProvider)) *credentials.Credentials { + p := &EC2RoleProvider{ + Client: client, + } + + for _, option := range options { + option(p) + } + + return credentials.NewCredentials(p) +} + +// Retrieve retrieves credentials from the EC2 service. +// Error will be returned if the request fails, or unable to extract +// the desired credentials. +func (m *EC2RoleProvider) Retrieve() (credentials.Value, error) { + credsList, err := requestCredList(m.Client) + if err != nil { + return credentials.Value{ProviderName: ProviderName}, err + } + + if len(credsList) == 0 { + return credentials.Value{ProviderName: ProviderName}, awserr.New("EmptyEC2RoleList", "empty EC2 Role list", nil) + } + credsName := credsList[0] + + roleCreds, err := requestCred(m.Client, credsName) + if err != nil { + return credentials.Value{ProviderName: ProviderName}, err + } + + m.SetExpiration(roleCreds.Expiration, m.ExpiryWindow) + + return credentials.Value{ + AccessKeyID: roleCreds.AccessKeyID, + SecretAccessKey: roleCreds.SecretAccessKey, + SessionToken: roleCreds.Token, + ProviderName: ProviderName, + }, nil +} + +// A ec2RoleCredRespBody provides the shape for unmarshalling credential +// request responses. +type ec2RoleCredRespBody struct { + // Success State + Expiration time.Time + AccessKeyID string + SecretAccessKey string + Token string + + // Error state + Code string + Message string +} + +const iamSecurityCredsPath = "/iam/security-credentials" + +// requestCredList requests a list of credentials from the EC2 service. +// If there are no credentials, or there is an error making or receiving the request +func requestCredList(client *ec2metadata.EC2Metadata) ([]string, error) { + resp, err := client.GetMetadata(iamSecurityCredsPath) + if err != nil { + return nil, awserr.New("EC2RoleRequestError", "no EC2 instance role found", err) + } + + credsList := []string{} + s := bufio.NewScanner(strings.NewReader(resp)) + for s.Scan() { + credsList = append(credsList, s.Text()) + } + + if err := s.Err(); err != nil { + return nil, awserr.New("SerializationError", "failed to read EC2 instance role from metadata service", err) + } + + return credsList, nil +} + +// requestCred requests the credentials for a specific credentials from the EC2 service. +// +// If the credentials cannot be found, or there is an error reading the response +// and error will be returned. +func requestCred(client *ec2metadata.EC2Metadata, credsName string) (ec2RoleCredRespBody, error) { + resp, err := client.GetMetadata(path.Join(iamSecurityCredsPath, credsName)) + if err != nil { + return ec2RoleCredRespBody{}, + awserr.New("EC2RoleRequestError", + fmt.Sprintf("failed to get %s EC2 instance role credentials", credsName), + err) + } + + respCreds := ec2RoleCredRespBody{} + if err := json.NewDecoder(strings.NewReader(resp)).Decode(&respCreds); err != nil { + return ec2RoleCredRespBody{}, + awserr.New("SerializationError", + fmt.Sprintf("failed to decode %s EC2 instance role credentials", credsName), + err) + } + + if respCreds.Code != "Success" { + // If an error code was returned something failed requesting the role. + return ec2RoleCredRespBody{}, awserr.New(respCreds.Code, respCreds.Message, nil) + } + + return respCreds, nil +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/env_provider.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/env_provider.go new file mode 100644 index 0000000..96655bc --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/env_provider.go @@ -0,0 +1,77 @@ +package credentials + +import ( + "os" + + "github.com/aws/aws-sdk-go/aws/awserr" +) + +// EnvProviderName provides a name of Env provider +const EnvProviderName = "EnvProvider" + +var ( + // ErrAccessKeyIDNotFound is returned when the AWS Access Key ID can't be + // found in the process's environment. + // + // @readonly + ErrAccessKeyIDNotFound = awserr.New("EnvAccessKeyNotFound", "AWS_ACCESS_KEY_ID or AWS_ACCESS_KEY not found in environment", nil) + + // ErrSecretAccessKeyNotFound is returned when the AWS Secret Access Key + // can't be found in the process's environment. + // + // @readonly + ErrSecretAccessKeyNotFound = awserr.New("EnvSecretNotFound", "AWS_SECRET_ACCESS_KEY or AWS_SECRET_KEY not found in environment", nil) +) + +// A EnvProvider retrieves credentials from the environment variables of the +// running process. Environment credentials never expire. +// +// Environment variables used: +// +// * Access Key ID: AWS_ACCESS_KEY_ID or AWS_ACCESS_KEY +// * Secret Access Key: AWS_SECRET_ACCESS_KEY or AWS_SECRET_KEY +type EnvProvider struct { + retrieved bool +} + +// NewEnvCredentials returns a pointer to a new Credentials object +// wrapping the environment variable provider. +func NewEnvCredentials() *Credentials { + return NewCredentials(&EnvProvider{}) +} + +// Retrieve retrieves the keys from the environment. +func (e *EnvProvider) Retrieve() (Value, error) { + e.retrieved = false + + id := os.Getenv("AWS_ACCESS_KEY_ID") + if id == "" { + id = os.Getenv("AWS_ACCESS_KEY") + } + + secret := os.Getenv("AWS_SECRET_ACCESS_KEY") + if secret == "" { + secret = os.Getenv("AWS_SECRET_KEY") + } + + if id == "" { + return Value{ProviderName: EnvProviderName}, ErrAccessKeyIDNotFound + } + + if secret == "" { + return Value{ProviderName: EnvProviderName}, ErrSecretAccessKeyNotFound + } + + e.retrieved = true + return Value{ + AccessKeyID: id, + SecretAccessKey: secret, + SessionToken: os.Getenv("AWS_SESSION_TOKEN"), + ProviderName: EnvProviderName, + }, nil +} + +// IsExpired returns if the credentials have been retrieved. +func (e *EnvProvider) IsExpired() bool { + return !e.retrieved +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/example.ini b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/example.ini new file mode 100644 index 0000000..7fc91d9 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/example.ini @@ -0,0 +1,12 @@ +[default] +aws_access_key_id = accessKey +aws_secret_access_key = secret +aws_session_token = token + +[no_token] +aws_access_key_id = accessKey +aws_secret_access_key = secret + +[with_colon] +aws_access_key_id: accessKey +aws_secret_access_key: secret diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/shared_credentials_provider.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/shared_credentials_provider.go new file mode 100644 index 0000000..7fb7cbf --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/shared_credentials_provider.go @@ -0,0 +1,151 @@ +package credentials + +import ( + "fmt" + "os" + "path/filepath" + + "github.com/go-ini/ini" + + "github.com/aws/aws-sdk-go/aws/awserr" +) + +// SharedCredsProviderName provides a name of SharedCreds provider +const SharedCredsProviderName = "SharedCredentialsProvider" + +var ( + // ErrSharedCredentialsHomeNotFound is emitted when the user directory cannot be found. + // + // @readonly + ErrSharedCredentialsHomeNotFound = awserr.New("UserHomeNotFound", "user home directory not found.", nil) +) + +// A SharedCredentialsProvider retrieves credentials from the current user's home +// directory, and keeps track if those credentials are expired. +// +// Profile ini file example: $HOME/.aws/credentials +type SharedCredentialsProvider struct { + // Path to the shared credentials file. + // + // If empty will look for "AWS_SHARED_CREDENTIALS_FILE" env variable. If the + // env value is empty will default to current user's home directory. + // Linux/OSX: "$HOME/.aws/credentials" + // Windows: "%USERPROFILE%\.aws\credentials" + Filename string + + // AWS Profile to extract credentials from the shared credentials file. If empty + // will default to environment variable "AWS_PROFILE" or "default" if + // environment variable is also not set. + Profile string + + // retrieved states if the credentials have been successfully retrieved. + retrieved bool +} + +// NewSharedCredentials returns a pointer to a new Credentials object +// wrapping the Profile file provider. +func NewSharedCredentials(filename, profile string) *Credentials { + return NewCredentials(&SharedCredentialsProvider{ + Filename: filename, + Profile: profile, + }) +} + +// Retrieve reads and extracts the shared credentials from the current +// users home directory. +func (p *SharedCredentialsProvider) Retrieve() (Value, error) { + p.retrieved = false + + filename, err := p.filename() + if err != nil { + return Value{ProviderName: SharedCredsProviderName}, err + } + + creds, err := loadProfile(filename, p.profile()) + if err != nil { + return Value{ProviderName: SharedCredsProviderName}, err + } + + p.retrieved = true + return creds, nil +} + +// IsExpired returns if the shared credentials have expired. +func (p *SharedCredentialsProvider) IsExpired() bool { + return !p.retrieved +} + +// loadProfiles loads from the file pointed to by shared credentials filename for profile. +// The credentials retrieved from the profile will be returned or error. Error will be +// returned if it fails to read from the file, or the data is invalid. +func loadProfile(filename, profile string) (Value, error) { + config, err := ini.Load(filename) + if err != nil { + return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsLoad", "failed to load shared credentials file", err) + } + iniProfile, err := config.GetSection(profile) + if err != nil { + return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsLoad", "failed to get profile", err) + } + + id, err := iniProfile.GetKey("aws_access_key_id") + if err != nil { + return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsAccessKey", + fmt.Sprintf("shared credentials %s in %s did not contain aws_access_key_id", profile, filename), + err) + } + + secret, err := iniProfile.GetKey("aws_secret_access_key") + if err != nil { + return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsSecret", + fmt.Sprintf("shared credentials %s in %s did not contain aws_secret_access_key", profile, filename), + nil) + } + + // Default to empty string if not found + token := iniProfile.Key("aws_session_token") + + return Value{ + AccessKeyID: id.String(), + SecretAccessKey: secret.String(), + SessionToken: token.String(), + ProviderName: SharedCredsProviderName, + }, nil +} + +// filename returns the filename to use to read AWS shared credentials. +// +// Will return an error if the user's home directory path cannot be found. +func (p *SharedCredentialsProvider) filename() (string, error) { + if p.Filename == "" { + if p.Filename = os.Getenv("AWS_SHARED_CREDENTIALS_FILE"); p.Filename != "" { + return p.Filename, nil + } + + homeDir := os.Getenv("HOME") // *nix + if homeDir == "" { // Windows + homeDir = os.Getenv("USERPROFILE") + } + if homeDir == "" { + return "", ErrSharedCredentialsHomeNotFound + } + + p.Filename = filepath.Join(homeDir, ".aws", "credentials") + } + + return p.Filename, nil +} + +// profile returns the AWS shared credentials profile. If empty will read +// environment variable "AWS_PROFILE". If that is not set profile will +// return "default". +func (p *SharedCredentialsProvider) profile() string { + if p.Profile == "" { + p.Profile = os.Getenv("AWS_PROFILE") + } + if p.Profile == "" { + p.Profile = "default" + } + + return p.Profile +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/static_provider.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/static_provider.go new file mode 100644 index 0000000..71189e7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/static_provider.go @@ -0,0 +1,48 @@ +package credentials + +import ( + "github.com/aws/aws-sdk-go/aws/awserr" +) + +// StaticProviderName provides a name of Static provider +const StaticProviderName = "StaticProvider" + +var ( + // ErrStaticCredentialsEmpty is emitted when static credentials are empty. + // + // @readonly + ErrStaticCredentialsEmpty = awserr.New("EmptyStaticCreds", "static credentials are empty", nil) +) + +// A StaticProvider is a set of credentials which are set pragmatically, +// and will never expire. +type StaticProvider struct { + Value +} + +// NewStaticCredentials returns a pointer to a new Credentials object +// wrapping a static credentials value provider. +func NewStaticCredentials(id, secret, token string) *Credentials { + return NewCredentials(&StaticProvider{Value: Value{ + AccessKeyID: id, + SecretAccessKey: secret, + SessionToken: token, + }}) +} + +// Retrieve returns the credentials or error if the credentials are invalid. +func (s *StaticProvider) Retrieve() (Value, error) { + if s.AccessKeyID == "" || s.SecretAccessKey == "" { + return Value{ProviderName: StaticProviderName}, ErrStaticCredentialsEmpty + } + + s.Value.ProviderName = StaticProviderName + return s.Value, nil +} + +// IsExpired returns if the credentials are expired. +// +// For StaticProvider, the credentials never expired. +func (s *StaticProvider) IsExpired() bool { + return false +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/stscreds/assume_role_provider.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/stscreds/assume_role_provider.go new file mode 100644 index 0000000..4d6408b --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/credentials/stscreds/assume_role_provider.go @@ -0,0 +1,134 @@ +// Package stscreds are credential Providers to retrieve STS AWS credentials. +// +// STS provides multiple ways to retrieve credentials which can be used when making +// future AWS service API operation calls. +package stscreds + +import ( + "fmt" + "time" + + "github.com/aws/aws-sdk-go/aws" + "github.com/aws/aws-sdk-go/aws/client" + "github.com/aws/aws-sdk-go/aws/credentials" + "github.com/aws/aws-sdk-go/service/sts" +) + +// ProviderName provides a name of AssumeRole provider +const ProviderName = "AssumeRoleProvider" + +// AssumeRoler represents the minimal subset of the STS client API used by this provider. +type AssumeRoler interface { + AssumeRole(input *sts.AssumeRoleInput) (*sts.AssumeRoleOutput, error) +} + +// DefaultDuration is the default amount of time in minutes that the credentials +// will be valid for. +var DefaultDuration = time.Duration(15) * time.Minute + +// AssumeRoleProvider retrieves temporary credentials from the STS service, and +// keeps track of their expiration time. This provider must be used explicitly, +// as it is not included in the credentials chain. +type AssumeRoleProvider struct { + credentials.Expiry + + // STS client to make assume role request with. + Client AssumeRoler + + // Role to be assumed. + RoleARN string + + // Session name, if you wish to reuse the credentials elsewhere. + RoleSessionName string + + // Expiry duration of the STS credentials. Defaults to 15 minutes if not set. + Duration time.Duration + + // Optional ExternalID to pass along, defaults to nil if not set. + ExternalID *string + + // ExpiryWindow will allow the credentials to trigger refreshing prior to + // the credentials actually expiring. This is beneficial so race conditions + // with expiring credentials do not cause request to fail unexpectedly + // due to ExpiredTokenException exceptions. + // + // So a ExpiryWindow of 10s would cause calls to IsExpired() to return true + // 10 seconds before the credentials are actually expired. + // + // If ExpiryWindow is 0 or less it will be ignored. + ExpiryWindow time.Duration +} + +// NewCredentials returns a pointer to a new Credentials object wrapping the +// AssumeRoleProvider. The credentials will expire every 15 minutes and the +// role will be named after a nanosecond timestamp of this operation. +// +// Takes a Config provider to create the STS client. The ConfigProvider is +// satisfied by the session.Session type. +func NewCredentials(c client.ConfigProvider, roleARN string, options ...func(*AssumeRoleProvider)) *credentials.Credentials { + p := &AssumeRoleProvider{ + Client: sts.New(c), + RoleARN: roleARN, + Duration: DefaultDuration, + } + + for _, option := range options { + option(p) + } + + return credentials.NewCredentials(p) +} + +// NewCredentialsWithClient returns a pointer to a new Credentials object wrapping the +// AssumeRoleProvider. The credentials will expire every 15 minutes and the +// role will be named after a nanosecond timestamp of this operation. +// +// Takes an AssumeRoler which can be satisfiede by the STS client. +func NewCredentialsWithClient(svc AssumeRoler, roleARN string, options ...func(*AssumeRoleProvider)) *credentials.Credentials { + p := &AssumeRoleProvider{ + Client: svc, + RoleARN: roleARN, + Duration: DefaultDuration, + } + + for _, option := range options { + option(p) + } + + return credentials.NewCredentials(p) +} + +// Retrieve generates a new set of temporary credentials using STS. +func (p *AssumeRoleProvider) Retrieve() (credentials.Value, error) { + + // Apply defaults where parameters are not set. + if p.RoleSessionName == "" { + // Try to work out a role name that will hopefully end up unique. + p.RoleSessionName = fmt.Sprintf("%d", time.Now().UTC().UnixNano()) + } + if p.Duration == 0 { + // Expire as often as AWS permits. + p.Duration = DefaultDuration + } + + roleOutput, err := p.Client.AssumeRole(&sts.AssumeRoleInput{ + DurationSeconds: aws.Int64(int64(p.Duration / time.Second)), + RoleArn: aws.String(p.RoleARN), + RoleSessionName: aws.String(p.RoleSessionName), + ExternalId: p.ExternalID, + }) + + if err != nil { + return credentials.Value{ProviderName: ProviderName}, err + } + + // We will proactively generate new credentials before they expire. + p.SetExpiration(*roleOutput.Credentials.Expiration, p.ExpiryWindow) + + return credentials.Value{ + AccessKeyID: *roleOutput.Credentials.AccessKeyId, + SecretAccessKey: *roleOutput.Credentials.SecretAccessKey, + SessionToken: *roleOutput.Credentials.SessionToken, + ProviderName: ProviderName, + }, nil +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/defaults/defaults.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/defaults/defaults.go new file mode 100644 index 0000000..043960d --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/defaults/defaults.go @@ -0,0 +1,97 @@ +// Package defaults is a collection of helpers to retrieve the SDK's default +// configuration and handlers. +// +// Generally this package shouldn't be used directly, but session.Session +// instead. This package is useful when you need to reset the defaults +// of a session or service client to the SDK defaults before setting +// additional parameters. +package defaults + +import ( + "net/http" + "os" + "time" + + "github.com/aws/aws-sdk-go/aws" + "github.com/aws/aws-sdk-go/aws/corehandlers" + "github.com/aws/aws-sdk-go/aws/credentials" + "github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds" + "github.com/aws/aws-sdk-go/aws/ec2metadata" + "github.com/aws/aws-sdk-go/aws/request" + "github.com/aws/aws-sdk-go/private/endpoints" +) + +// A Defaults provides a collection of default values for SDK clients. +type Defaults struct { + Config *aws.Config + Handlers request.Handlers +} + +// Get returns the SDK's default values with Config and handlers pre-configured. +func Get() Defaults { + cfg := Config() + handlers := Handlers() + cfg.Credentials = CredChain(cfg, handlers) + + return Defaults{ + Config: cfg, + Handlers: handlers, + } +} + +// Config returns the default configuration without credentials. +// To retrieve a config with credentials also included use +// `defaults.Get().Config` instead. +// +// Generally you shouldn't need to use this method directly, but +// is available if you need to reset the configuration of an +// existing service client or session. +func Config() *aws.Config { + return aws.NewConfig(). + WithCredentials(credentials.AnonymousCredentials). + WithRegion(os.Getenv("AWS_REGION")). + WithHTTPClient(http.DefaultClient). + WithMaxRetries(aws.UseServiceDefaultRetries). + WithLogger(aws.NewDefaultLogger()). + WithLogLevel(aws.LogOff). + WithSleepDelay(time.Sleep) +} + +// Handlers returns the default request handlers. +// +// Generally you shouldn't need to use this method directly, but +// is available if you need to reset the request handlers of an +// existing service client or session. +func Handlers() request.Handlers { + var handlers request.Handlers + + handlers.Validate.PushBackNamed(corehandlers.ValidateEndpointHandler) + handlers.Build.PushBackNamed(corehandlers.SDKVersionUserAgentHandler) + handlers.Build.AfterEachFn = request.HandlerListStopOnError + handlers.Sign.PushBackNamed(corehandlers.BuildContentLengthHandler) + handlers.Send.PushBackNamed(corehandlers.SendHandler) + handlers.AfterRetry.PushBackNamed(corehandlers.AfterRetryHandler) + handlers.ValidateResponse.PushBackNamed(corehandlers.ValidateResponseHandler) + + return handlers +} + +// CredChain returns the default credential chain. +// +// Generally you shouldn't need to use this method directly, but +// is available if you need to reset the credentials of an +// existing service client or session's Config. +func CredChain(cfg *aws.Config, handlers request.Handlers) *credentials.Credentials { + endpoint, signingRegion := endpoints.EndpointForRegion(ec2metadata.ServiceName, *cfg.Region, true) + + return credentials.NewCredentials(&credentials.ChainProvider{ + VerboseErrors: aws.BoolValue(cfg.CredentialsChainVerboseErrors), + Providers: []credentials.Provider{ + &credentials.EnvProvider{}, + &credentials.SharedCredentialsProvider{Filename: "", Profile: ""}, + &ec2rolecreds.EC2RoleProvider{ + Client: ec2metadata.NewClient(*cfg, handlers, endpoint, signingRegion), + ExpiryWindow: 5 * time.Minute, + }, + }}) +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/ec2metadata/api.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/ec2metadata/api.go new file mode 100644 index 0000000..e5137ca --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/ec2metadata/api.go @@ -0,0 +1,43 @@ +package ec2metadata + +import ( + "path" + + "github.com/aws/aws-sdk-go/aws/request" +) + +// GetMetadata uses the path provided to request +func (c *EC2Metadata) GetMetadata(p string) (string, error) { + op := &request.Operation{ + Name: "GetMetadata", + HTTPMethod: "GET", + HTTPPath: path.Join("/", "meta-data", p), + } + + output := &metadataOutput{} + req := c.NewRequest(op, nil, output) + + return output.Content, req.Send() +} + +// Region returns the region the instance is running in. +func (c *EC2Metadata) Region() (string, error) { + resp, err := c.GetMetadata("placement/availability-zone") + if err != nil { + return "", err + } + + // returns region without the suffix. Eg: us-west-2a becomes us-west-2 + return resp[:len(resp)-1], nil +} + +// Available returns if the application has access to the EC2 Metadata service. +// Can be used to determine if application is running within an EC2 Instance and +// the metadata service is available. +func (c *EC2Metadata) Available() bool { + if _, err := c.GetMetadata("instance-id"); err != nil { + return false + } + + return true +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/ec2metadata/service.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/ec2metadata/service.go new file mode 100644 index 0000000..5b4379d --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/ec2metadata/service.go @@ -0,0 +1,124 @@ +// Package ec2metadata provides the client for making API calls to the +// EC2 Metadata service. +package ec2metadata + +import ( + "bytes" + "errors" + "io" + "net/http" + "time" + + "github.com/aws/aws-sdk-go/aws" + "github.com/aws/aws-sdk-go/aws/awserr" + "github.com/aws/aws-sdk-go/aws/client" + "github.com/aws/aws-sdk-go/aws/client/metadata" + "github.com/aws/aws-sdk-go/aws/request" +) + +// ServiceName is the name of the service. +const ServiceName = "ec2metadata" + +// A EC2Metadata is an EC2 Metadata service Client. +type EC2Metadata struct { + *client.Client +} + +// New creates a new instance of the EC2Metadata client with a session. +// This client is safe to use across multiple goroutines. +// +// +// Example: +// // Create a EC2Metadata client from just a session. +// svc := ec2metadata.New(mySession) +// +// // Create a EC2Metadata client with additional configuration +// svc := ec2metadata.New(mySession, aws.NewConfig().WithLogLevel(aws.LogDebugHTTPBody)) +func New(p client.ConfigProvider, cfgs ...*aws.Config) *EC2Metadata { + c := p.ClientConfig(ServiceName, cfgs...) + return NewClient(*c.Config, c.Handlers, c.Endpoint, c.SigningRegion) +} + +// NewClient returns a new EC2Metadata client. Should be used to create +// a client when not using a session. Generally using just New with a session +// is preferred. +// +// If an unmodified HTTP client is provided from the stdlib default, or no client +// the EC2RoleProvider's EC2Metadata HTTP client's timeout will be shortened. +// To disable this set Config.EC2MetadataDisableTimeoutOverride to false. Enabled by default. +func NewClient(cfg aws.Config, handlers request.Handlers, endpoint, signingRegion string, opts ...func(*client.Client)) *EC2Metadata { + if !aws.BoolValue(cfg.EC2MetadataDisableTimeoutOverride) && httpClientZero(cfg.HTTPClient) { + // If the http client is unmodified and this feature is not disabled + // set custom timeouts for EC2Metadata requests. + cfg.HTTPClient = &http.Client{ + // use a shorter timeout than default because the metadata + // service is local if it is running, and to fail faster + // if not running on an ec2 instance. + Timeout: 5 * time.Second, + } + } + + svc := &EC2Metadata{ + Client: client.New( + cfg, + metadata.ClientInfo{ + ServiceName: ServiceName, + Endpoint: endpoint, + APIVersion: "latest", + }, + handlers, + ), + } + + svc.Handlers.Unmarshal.PushBack(unmarshalHandler) + svc.Handlers.UnmarshalError.PushBack(unmarshalError) + svc.Handlers.Validate.Clear() + svc.Handlers.Validate.PushBack(validateEndpointHandler) + + // Add additional options to the service config + for _, option := range opts { + option(svc.Client) + } + + return svc +} + +func httpClientZero(c *http.Client) bool { + return c == nil || (c.Transport == nil && c.CheckRedirect == nil && c.Jar == nil && c.Timeout == 0) +} + +type metadataOutput struct { + Content string +} + +func unmarshalHandler(r *request.Request) { + defer r.HTTPResponse.Body.Close() + b := &bytes.Buffer{} + if _, err := io.Copy(b, r.HTTPResponse.Body); err != nil { + r.Error = awserr.New("SerializationError", "unable to unmarshal EC2 metadata respose", err) + return + } + + if data, ok := r.Data.(*metadataOutput); ok { + data.Content = b.String() + } +} + +func unmarshalError(r *request.Request) { + defer r.HTTPResponse.Body.Close() + b := &bytes.Buffer{} + if _, err := io.Copy(b, r.HTTPResponse.Body); err != nil { + r.Error = awserr.New("SerializationError", "unable to unmarshal EC2 metadata error respose", err) + return + } + + // Response body format is not consistent between metadata endpoints. + // Grab the error message as a string and include that as the source error + r.Error = awserr.New("EC2MetadataError", "failed to make EC2Metadata request", errors.New(b.String())) +} + +func validateEndpointHandler(r *request.Request) { + if r.ClientInfo.Endpoint == "" { + r.Error = aws.ErrMissingEndpoint + } +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/errors.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/errors.go new file mode 100644 index 0000000..5766361 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/errors.go @@ -0,0 +1,17 @@ +package aws + +import "github.com/aws/aws-sdk-go/aws/awserr" + +var ( + // ErrMissingRegion is an error that is returned if region configuration is + // not found. + // + // @readonly + ErrMissingRegion = awserr.New("MissingRegion", "could not find region configuration", nil) + + // ErrMissingEndpoint is an error that is returned if an endpoint cannot be + // resolved for a service. + // + // @readonly + ErrMissingEndpoint = awserr.New("MissingEndpoint", "'Endpoint' configuration is required for this service", nil) +) diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/logger.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/logger.go new file mode 100644 index 0000000..db87188 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/logger.go @@ -0,0 +1,112 @@ +package aws + +import ( + "log" + "os" +) + +// A LogLevelType defines the level logging should be performed at. Used to instruct +// the SDK which statements should be logged. +type LogLevelType uint + +// LogLevel returns the pointer to a LogLevel. Should be used to workaround +// not being able to take the address of a non-composite literal. +func LogLevel(l LogLevelType) *LogLevelType { + return &l +} + +// Value returns the LogLevel value or the default value LogOff if the LogLevel +// is nil. Safe to use on nil value LogLevelTypes. +func (l *LogLevelType) Value() LogLevelType { + if l != nil { + return *l + } + return LogOff +} + +// Matches returns true if the v LogLevel is enabled by this LogLevel. Should be +// used with logging sub levels. Is safe to use on nil value LogLevelTypes. If +// LogLevel is nill, will default to LogOff comparison. +func (l *LogLevelType) Matches(v LogLevelType) bool { + c := l.Value() + return c&v == v +} + +// AtLeast returns true if this LogLevel is at least high enough to satisfies v. +// Is safe to use on nil value LogLevelTypes. If LogLevel is nill, will default +// to LogOff comparison. +func (l *LogLevelType) AtLeast(v LogLevelType) bool { + c := l.Value() + return c >= v +} + +const ( + // LogOff states that no logging should be performed by the SDK. This is the + // default state of the SDK, and should be use to disable all logging. + LogOff LogLevelType = iota * 0x1000 + + // LogDebug state that debug output should be logged by the SDK. This should + // be used to inspect request made and responses received. + LogDebug +) + +// Debug Logging Sub Levels +const ( + // LogDebugWithSigning states that the SDK should log request signing and + // presigning events. This should be used to log the signing details of + // requests for debugging. Will also enable LogDebug. + LogDebugWithSigning LogLevelType = LogDebug | (1 << iota) + + // LogDebugWithHTTPBody states the SDK should log HTTP request and response + // HTTP bodys in addition to the headers and path. This should be used to + // see the body content of requests and responses made while using the SDK + // Will also enable LogDebug. + LogDebugWithHTTPBody + + // LogDebugWithRequestRetries states the SDK should log when service requests will + // be retried. This should be used to log when you want to log when service + // requests are being retried. Will also enable LogDebug. + LogDebugWithRequestRetries + + // LogDebugWithRequestErrors states the SDK should log when service requests fail + // to build, send, validate, or unmarshal. + LogDebugWithRequestErrors +) + +// A Logger is a minimalistic interface for the SDK to log messages to. Should +// be used to provide custom logging writers for the SDK to use. +type Logger interface { + Log(...interface{}) +} + +// A LoggerFunc is a convenience type to convert a function taking a variadic +// list of arguments and wrap it so the Logger interface can be used. +// +// Example: +// s3.New(sess, &aws.Config{Logger: aws.LoggerFunc(func(args ...interface{}) { +// fmt.Fprintln(os.Stdout, args...) +// })}) +type LoggerFunc func(...interface{}) + +// Log calls the wrapped function with the arguments provided +func (f LoggerFunc) Log(args ...interface{}) { + f(args...) +} + +// NewDefaultLogger returns a Logger which will write log messages to stdout, and +// use same formatting runes as the stdlib log.Logger +func NewDefaultLogger() Logger { + return &defaultLogger{ + logger: log.New(os.Stdout, "", log.LstdFlags), + } +} + +// A defaultLogger provides a minimalistic logger satisfying the Logger interface. +type defaultLogger struct { + logger *log.Logger +} + +// Log logs the parameters to the stdlib logger. See log.Println. +func (l defaultLogger) Log(args ...interface{}) { + l.logger.Println(args...) +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/request/handlers.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/request/handlers.go new file mode 100644 index 0000000..5279c19 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/request/handlers.go @@ -0,0 +1,187 @@ +package request + +import ( + "fmt" + "strings" +) + +// A Handlers provides a collection of request handlers for various +// stages of handling requests. +type Handlers struct { + Validate HandlerList + Build HandlerList + Sign HandlerList + Send HandlerList + ValidateResponse HandlerList + Unmarshal HandlerList + UnmarshalMeta HandlerList + UnmarshalError HandlerList + Retry HandlerList + AfterRetry HandlerList +} + +// Copy returns of this handler's lists. +func (h *Handlers) Copy() Handlers { + return Handlers{ + Validate: h.Validate.copy(), + Build: h.Build.copy(), + Sign: h.Sign.copy(), + Send: h.Send.copy(), + ValidateResponse: h.ValidateResponse.copy(), + Unmarshal: h.Unmarshal.copy(), + UnmarshalError: h.UnmarshalError.copy(), + UnmarshalMeta: h.UnmarshalMeta.copy(), + Retry: h.Retry.copy(), + AfterRetry: h.AfterRetry.copy(), + } +} + +// Clear removes callback functions for all handlers +func (h *Handlers) Clear() { + h.Validate.Clear() + h.Build.Clear() + h.Send.Clear() + h.Sign.Clear() + h.Unmarshal.Clear() + h.UnmarshalMeta.Clear() + h.UnmarshalError.Clear() + h.ValidateResponse.Clear() + h.Retry.Clear() + h.AfterRetry.Clear() +} + +// A HandlerListRunItem represents an entry in the HandlerList which +// is being run. +type HandlerListRunItem struct { + Index int + Handler NamedHandler + Request *Request +} + +// A HandlerList manages zero or more handlers in a list. +type HandlerList struct { + list []NamedHandler + + // Called after each request handler in the list is called. If set + // and the func returns true the HandlerList will continue to iterate + // over the request handlers. If false is returned the HandlerList + // will stop iterating. + // + // Should be used if extra logic to be performed between each handler + // in the list. This can be used to terminate a list's iteration + // based on a condition such as error like, HandlerListStopOnError. + // Or for logging like HandlerListLogItem. + AfterEachFn func(item HandlerListRunItem) bool +} + +// A NamedHandler is a struct that contains a name and function callback. +type NamedHandler struct { + Name string + Fn func(*Request) +} + +// copy creates a copy of the handler list. +func (l *HandlerList) copy() HandlerList { + n := HandlerList{ + AfterEachFn: l.AfterEachFn, + } + n.list = append([]NamedHandler{}, l.list...) + return n +} + +// Clear clears the handler list. +func (l *HandlerList) Clear() { + l.list = []NamedHandler{} +} + +// Len returns the number of handlers in the list. +func (l *HandlerList) Len() int { + return len(l.list) +} + +// PushBack pushes handler f to the back of the handler list. +func (l *HandlerList) PushBack(f func(*Request)) { + l.list = append(l.list, NamedHandler{"__anonymous", f}) +} + +// PushFront pushes handler f to the front of the handler list. +func (l *HandlerList) PushFront(f func(*Request)) { + l.list = append([]NamedHandler{{"__anonymous", f}}, l.list...) +} + +// PushBackNamed pushes named handler f to the back of the handler list. +func (l *HandlerList) PushBackNamed(n NamedHandler) { + l.list = append(l.list, n) +} + +// PushFrontNamed pushes named handler f to the front of the handler list. +func (l *HandlerList) PushFrontNamed(n NamedHandler) { + l.list = append([]NamedHandler{n}, l.list...) +} + +// Remove removes a NamedHandler n +func (l *HandlerList) Remove(n NamedHandler) { + newlist := []NamedHandler{} + for _, m := range l.list { + if m.Name != n.Name { + newlist = append(newlist, m) + } + } + l.list = newlist +} + +// Run executes all handlers in the list with a given request object. +func (l *HandlerList) Run(r *Request) { + for i, h := range l.list { + h.Fn(r) + item := HandlerListRunItem{ + Index: i, Handler: h, Request: r, + } + if l.AfterEachFn != nil && !l.AfterEachFn(item) { + return + } + } +} + +// HandlerListLogItem logs the request handler and the state of the +// request's Error value. Always returns true to continue iterating +// request handlers in a HandlerList. +func HandlerListLogItem(item HandlerListRunItem) bool { + if item.Request.Config.Logger == nil { + return true + } + item.Request.Config.Logger.Log("DEBUG: RequestHandler", + item.Index, item.Handler.Name, item.Request.Error) + + return true +} + +// HandlerListStopOnError returns false to stop the HandlerList iterating +// over request handlers if Request.Error is not nil. True otherwise +// to continue iterating. +func HandlerListStopOnError(item HandlerListRunItem) bool { + return item.Request.Error == nil +} + +// MakeAddToUserAgentHandler will add the name/version pair to the User-Agent request +// header. If the extra parameters are provided they will be added as metadata to the +// name/version pair resulting in the following format. +// "name/version (extra0; extra1; ...)" +// The user agent part will be concatenated with this current request's user agent string. +func MakeAddToUserAgentHandler(name, version string, extra ...string) func(*Request) { + ua := fmt.Sprintf("%s/%s", name, version) + if len(extra) > 0 { + ua += fmt.Sprintf(" (%s)", strings.Join(extra, "; ")) + } + return func(r *Request) { + AddToUserAgent(r, ua) + } +} + +// MakeAddToUserAgentFreeFormHandler adds the input to the User-Agent request header. +// The input string will be concatenated with the current request's user agent string. +func MakeAddToUserAgentFreeFormHandler(s string) func(*Request) { + return func(r *Request) { + AddToUserAgent(r, s) + } +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/request/request.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/request/request.go new file mode 100644 index 0000000..4b36900 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/request/request.go @@ -0,0 +1,298 @@ +package request + +import ( + "bytes" + "fmt" + "io" + "io/ioutil" + "net/http" + "net/url" + "reflect" + "strings" + "time" + + "github.com/aws/aws-sdk-go/aws" + "github.com/aws/aws-sdk-go/aws/client/metadata" +) + +// A Request is the service request to be made. +type Request struct { + Config aws.Config + ClientInfo metadata.ClientInfo + Handlers Handlers + + Retryer + Time time.Time + ExpireTime time.Duration + Operation *Operation + HTTPRequest *http.Request + HTTPResponse *http.Response + Body io.ReadSeeker + BodyStart int64 // offset from beginning of Body that the request body starts + Params interface{} + Error error + Data interface{} + RequestID string + RetryCount int + Retryable *bool + RetryDelay time.Duration + NotHoist bool + SignedHeaderVals http.Header + + built bool +} + +// An Operation is the service API operation to be made. +type Operation struct { + Name string + HTTPMethod string + HTTPPath string + *Paginator +} + +// Paginator keeps track of pagination configuration for an API operation. +type Paginator struct { + InputTokens []string + OutputTokens []string + LimitToken string + TruncationToken string +} + +// New returns a new Request pointer for the service API +// operation and parameters. +// +// Params is any value of input parameters to be the request payload. +// Data is pointer value to an object which the request's response +// payload will be deserialized to. +func New(cfg aws.Config, clientInfo metadata.ClientInfo, handlers Handlers, + retryer Retryer, operation *Operation, params interface{}, data interface{}) *Request { + + method := operation.HTTPMethod + if method == "" { + method = "POST" + } + p := operation.HTTPPath + if p == "" { + p = "/" + } + + httpReq, _ := http.NewRequest(method, "", nil) + httpReq.URL, _ = url.Parse(clientInfo.Endpoint + p) + + r := &Request{ + Config: cfg, + ClientInfo: clientInfo, + Handlers: handlers.Copy(), + + Retryer: retryer, + Time: time.Now(), + ExpireTime: 0, + Operation: operation, + HTTPRequest: httpReq, + Body: nil, + Params: params, + Error: nil, + Data: data, + } + r.SetBufferBody([]byte{}) + + return r +} + +// WillRetry returns if the request's can be retried. +func (r *Request) WillRetry() bool { + return r.Error != nil && aws.BoolValue(r.Retryable) && r.RetryCount < r.MaxRetries() +} + +// ParamsFilled returns if the request's parameters have been populated +// and the parameters are valid. False is returned if no parameters are +// provided or invalid. +func (r *Request) ParamsFilled() bool { + return r.Params != nil && reflect.ValueOf(r.Params).Elem().IsValid() +} + +// DataFilled returns true if the request's data for response deserialization +// target has been set and is a valid. False is returned if data is not +// set, or is invalid. +func (r *Request) DataFilled() bool { + return r.Data != nil && reflect.ValueOf(r.Data).Elem().IsValid() +} + +// SetBufferBody will set the request's body bytes that will be sent to +// the service API. +func (r *Request) SetBufferBody(buf []byte) { + r.SetReaderBody(bytes.NewReader(buf)) +} + +// SetStringBody sets the body of the request to be backed by a string. +func (r *Request) SetStringBody(s string) { + r.SetReaderBody(strings.NewReader(s)) +} + +// SetReaderBody will set the request's body reader. +func (r *Request) SetReaderBody(reader io.ReadSeeker) { + r.HTTPRequest.Body = ioutil.NopCloser(reader) + r.Body = reader +} + +// Presign returns the request's signed URL. Error will be returned +// if the signing fails. +func (r *Request) Presign(expireTime time.Duration) (string, error) { + r.ExpireTime = expireTime + r.NotHoist = false + r.Sign() + if r.Error != nil { + return "", r.Error + } + return r.HTTPRequest.URL.String(), nil +} + +// PresignRequest behaves just like presign, but hoists all headers and signs them. +// Also returns the signed hash back to the user +func (r *Request) PresignRequest(expireTime time.Duration) (string, http.Header, error) { + r.ExpireTime = expireTime + r.NotHoist = true + r.Sign() + if r.Error != nil { + return "", nil, r.Error + } + return r.HTTPRequest.URL.String(), r.SignedHeaderVals, nil +} + +func debugLogReqError(r *Request, stage string, retrying bool, err error) { + if !r.Config.LogLevel.Matches(aws.LogDebugWithRequestErrors) { + return + } + + retryStr := "not retrying" + if retrying { + retryStr = "will retry" + } + + r.Config.Logger.Log(fmt.Sprintf("DEBUG: %s %s/%s failed, %s, error %v", + stage, r.ClientInfo.ServiceName, r.Operation.Name, retryStr, err)) +} + +// Build will build the request's object so it can be signed and sent +// to the service. Build will also validate all the request's parameters. +// Anny additional build Handlers set on this request will be run +// in the order they were set. +// +// The request will only be built once. Multiple calls to build will have +// no effect. +// +// If any Validate or Build errors occur the build will stop and the error +// which occurred will be returned. +func (r *Request) Build() error { + if !r.built { + r.Error = nil + r.Handlers.Validate.Run(r) + if r.Error != nil { + debugLogReqError(r, "Validate Request", false, r.Error) + return r.Error + } + r.Handlers.Build.Run(r) + if r.Error != nil { + debugLogReqError(r, "Build Request", false, r.Error) + return r.Error + } + r.built = true + } + + return r.Error +} + +// Sign will sign the request retuning error if errors are encountered. +// +// Send will build the request prior to signing. All Sign Handlers will +// be executed in the order they were set. +func (r *Request) Sign() error { + r.Build() + if r.Error != nil { + debugLogReqError(r, "Build Request", false, r.Error) + return r.Error + } + + r.Handlers.Sign.Run(r) + return r.Error +} + +// Send will send the request returning error if errors are encountered. +// +// Send will sign the request prior to sending. All Send Handlers will +// be executed in the order they were set. +func (r *Request) Send() error { + for { + r.Sign() + if r.Error != nil { + return r.Error + } + + if aws.BoolValue(r.Retryable) { + if r.Config.LogLevel.Matches(aws.LogDebugWithRequestRetries) { + r.Config.Logger.Log(fmt.Sprintf("DEBUG: Retrying Request %s/%s, attempt %d", + r.ClientInfo.ServiceName, r.Operation.Name, r.RetryCount)) + } + + // Re-seek the body back to the original point in for a retry so that + // send will send the body's contents again in the upcoming request. + r.Body.Seek(r.BodyStart, 0) + r.HTTPRequest.Body = ioutil.NopCloser(r.Body) + } + r.Retryable = nil + + r.Handlers.Send.Run(r) + if r.Error != nil { + err := r.Error + r.Handlers.Retry.Run(r) + r.Handlers.AfterRetry.Run(r) + if r.Error != nil { + debugLogReqError(r, "Send Request", false, r.Error) + return r.Error + } + debugLogReqError(r, "Send Request", true, err) + continue + } + + r.Handlers.UnmarshalMeta.Run(r) + r.Handlers.ValidateResponse.Run(r) + if r.Error != nil { + err := r.Error + r.Handlers.UnmarshalError.Run(r) + r.Handlers.Retry.Run(r) + r.Handlers.AfterRetry.Run(r) + if r.Error != nil { + debugLogReqError(r, "Validate Response", false, r.Error) + return r.Error + } + debugLogReqError(r, "Validate Response", true, err) + continue + } + + r.Handlers.Unmarshal.Run(r) + if r.Error != nil { + err := r.Error + r.Handlers.Retry.Run(r) + r.Handlers.AfterRetry.Run(r) + if r.Error != nil { + debugLogReqError(r, "Unmarshal Response", false, r.Error) + return r.Error + } + debugLogReqError(r, "Unmarshal Response", true, err) + continue + } + + break + } + + return nil +} + +// AddToUserAgent adds the string to the end of the request's current user agent. +func AddToUserAgent(r *Request, s string) { + curUA := r.HTTPRequest.Header.Get("User-Agent") + if len(curUA) > 0 { + s = curUA + " " + s + } + r.HTTPRequest.Header.Set("User-Agent", s) +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/request/request_pagination.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/request/request_pagination.go new file mode 100644 index 0000000..2939ec4 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/request/request_pagination.go @@ -0,0 +1,104 @@ +package request + +import ( + "reflect" + + "github.com/aws/aws-sdk-go/aws" + "github.com/aws/aws-sdk-go/aws/awsutil" +) + +//type Paginater interface { +// HasNextPage() bool +// NextPage() *Request +// EachPage(fn func(data interface{}, isLastPage bool) (shouldContinue bool)) error +//} + +// HasNextPage returns true if this request has more pages of data available. +func (r *Request) HasNextPage() bool { + return len(r.nextPageTokens()) > 0 +} + +// nextPageTokens returns the tokens to use when asking for the next page of +// data. +func (r *Request) nextPageTokens() []interface{} { + if r.Operation.Paginator == nil { + return nil + } + + if r.Operation.TruncationToken != "" { + tr, _ := awsutil.ValuesAtPath(r.Data, r.Operation.TruncationToken) + if len(tr) == 0 { + return nil + } + + switch v := tr[0].(type) { + case *bool: + if !aws.BoolValue(v) { + return nil + } + case bool: + if v == false { + return nil + } + } + } + + tokens := []interface{}{} + tokenAdded := false + for _, outToken := range r.Operation.OutputTokens { + v, _ := awsutil.ValuesAtPath(r.Data, outToken) + if len(v) > 0 { + tokens = append(tokens, v[0]) + tokenAdded = true + } else { + tokens = append(tokens, nil) + } + } + if !tokenAdded { + return nil + } + + return tokens +} + +// NextPage returns a new Request that can be executed to return the next +// page of result data. Call .Send() on this request to execute it. +func (r *Request) NextPage() *Request { + tokens := r.nextPageTokens() + if len(tokens) == 0 { + return nil + } + + data := reflect.New(reflect.TypeOf(r.Data).Elem()).Interface() + nr := New(r.Config, r.ClientInfo, r.Handlers, r.Retryer, r.Operation, awsutil.CopyOf(r.Params), data) + for i, intok := range nr.Operation.InputTokens { + awsutil.SetValueAtPath(nr.Params, intok, tokens[i]) + } + return nr +} + +// EachPage iterates over each page of a paginated request object. The fn +// parameter should be a function with the following sample signature: +// +// func(page *T, lastPage bool) bool { +// return true // return false to stop iterating +// } +// +// Where "T" is the structure type matching the output structure of the given +// operation. For example, a request object generated by +// DynamoDB.ListTablesRequest() would expect to see dynamodb.ListTablesOutput +// as the structure "T". The lastPage value represents whether the page is +// the last page of data or not. The return value of this function should +// return true to keep iterating or false to stop. +func (r *Request) EachPage(fn func(data interface{}, isLastPage bool) (shouldContinue bool)) error { + for page := r; page != nil; page = page.NextPage() { + if err := page.Send(); err != nil { + return err + } + if getNextPage := fn(page.Data, !page.HasNextPage()); !getNextPage { + return page.Error + } + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/request/retryer.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/request/retryer.go new file mode 100644 index 0000000..ab6fff5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/request/retryer.go @@ -0,0 +1,82 @@ +package request + +import ( + "time" + + "github.com/aws/aws-sdk-go/aws" + "github.com/aws/aws-sdk-go/aws/awserr" +) + +// Retryer is an interface to control retry logic for a given service. +// The default implementation used by most services is the service.DefaultRetryer +// structure, which contains basic retry logic using exponential backoff. +type Retryer interface { + RetryRules(*Request) time.Duration + ShouldRetry(*Request) bool + MaxRetries() int +} + +// WithRetryer sets a config Retryer value to the given Config returning it +// for chaining. +func WithRetryer(cfg *aws.Config, retryer Retryer) *aws.Config { + cfg.Retryer = retryer + return cfg +} + +// retryableCodes is a collection of service response codes which are retry-able +// without any further action. +var retryableCodes = map[string]struct{}{ + "RequestError": {}, + "RequestTimeout": {}, + "ProvisionedThroughputExceededException": {}, + "Throttling": {}, + "ThrottlingException": {}, + "RequestLimitExceeded": {}, + "RequestThrottled": {}, + "LimitExceededException": {}, // Deleting 10+ DynamoDb tables at once + "TooManyRequestsException": {}, // Lambda functions +} + +// credsExpiredCodes is a collection of error codes which signify the credentials +// need to be refreshed. Expired tokens require refreshing of credentials, and +// resigning before the request can be retried. +var credsExpiredCodes = map[string]struct{}{ + "ExpiredToken": {}, + "ExpiredTokenException": {}, + "RequestExpired": {}, // EC2 Only +} + +func isCodeRetryable(code string) bool { + if _, ok := retryableCodes[code]; ok { + return true + } + + return isCodeExpiredCreds(code) +} + +func isCodeExpiredCreds(code string) bool { + _, ok := credsExpiredCodes[code] + return ok +} + +// IsErrorRetryable returns whether the error is retryable, based on its Code. +// Returns false if the request has no Error set. +func (r *Request) IsErrorRetryable() bool { + if r.Error != nil { + if err, ok := r.Error.(awserr.Error); ok { + return isCodeRetryable(err.Code()) + } + } + return false +} + +// IsErrorExpired returns whether the error code is a credential expiry error. +// Returns false if the request has no Error set. +func (r *Request) IsErrorExpired() bool { + if r.Error != nil { + if err, ok := r.Error.(awserr.Error); ok { + return isCodeExpiredCreds(err.Code()) + } + } + return false +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/session/session.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/session/session.go new file mode 100644 index 0000000..47e4536 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/session/session.go @@ -0,0 +1,120 @@ +// Package session provides a way to create service clients with shared configuration +// and handlers. +// +// Generally this package should be used instead of the `defaults` package. +// +// A session should be used to share configurations and request handlers between multiple +// service clients. When service clients need specific configuration aws.Config can be +// used to provide additional configuration directly to the service client. +package session + +import ( + "github.com/aws/aws-sdk-go/aws" + "github.com/aws/aws-sdk-go/aws/client" + "github.com/aws/aws-sdk-go/aws/corehandlers" + "github.com/aws/aws-sdk-go/aws/defaults" + "github.com/aws/aws-sdk-go/aws/request" + "github.com/aws/aws-sdk-go/private/endpoints" +) + +// A Session provides a central location to create service clients from and +// store configurations and request handlers for those services. +// +// Sessions are safe to create service clients concurrently, but it is not safe +// to mutate the session concurrently. +type Session struct { + Config *aws.Config + Handlers request.Handlers +} + +// New creates a new instance of the handlers merging in the provided Configs +// on top of the SDK's default configurations. Once the session is created it +// can be mutated to modify Configs or Handlers. The session is safe to be read +// concurrently, but it should not be written to concurrently. +// +// Example: +// // Create a session with the default config and request handlers. +// sess := session.New() +// +// // Create a session with a custom region +// sess := session.New(&aws.Config{Region: aws.String("us-east-1")}) +// +// // Create a session, and add additional handlers for all service +// // clients created with the session to inherit. Adds logging handler. +// sess := session.New() +// sess.Handlers.Send.PushFront(func(r *request.Request) { +// // Log every request made and its payload +// logger.Println("Request: %s/%s, Payload: %s", r.ClientInfo.ServiceName, r.Operation, r.Params) +// }) +// +// // Create a S3 client instance from a session +// sess := session.New() +// svc := s3.New(sess) +func New(cfgs ...*aws.Config) *Session { + cfg := defaults.Config() + handlers := defaults.Handlers() + + // Apply the passed in configs so the configuration can be applied to the + // default credential chain + cfg.MergeIn(cfgs...) + cfg.Credentials = defaults.CredChain(cfg, handlers) + + // Reapply any passed in configs to override credentials if set + cfg.MergeIn(cfgs...) + + s := &Session{ + Config: cfg, + Handlers: handlers, + } + + initHandlers(s) + + return s +} + +func initHandlers(s *Session) { + // Add the Validate parameter handler if it is not disabled. + s.Handlers.Validate.Remove(corehandlers.ValidateParametersHandler) + if !aws.BoolValue(s.Config.DisableParamValidation) { + s.Handlers.Validate.PushBackNamed(corehandlers.ValidateParametersHandler) + } +} + +// Copy creates and returns a copy of the current session, coping the config +// and handlers. If any additional configs are provided they will be merged +// on top of the session's copied config. +// +// Example: +// // Create a copy of the current session, configured for the us-west-2 region. +// sess.Copy(&aws.Config{Region: aws.String("us-west-2"}) +func (s *Session) Copy(cfgs ...*aws.Config) *Session { + newSession := &Session{ + Config: s.Config.Copy(cfgs...), + Handlers: s.Handlers.Copy(), + } + + initHandlers(newSession) + + return newSession +} + +// ClientConfig satisfies the client.ConfigProvider interface and is used to +// configure the service client instances. Passing the Session to the service +// client's constructor (New) will use this method to configure the client. +// +// Example: +// sess := session.New() +// s3.New(sess) +func (s *Session) ClientConfig(serviceName string, cfgs ...*aws.Config) client.Config { + s = s.Copy(cfgs...) + endpoint, signingRegion := endpoints.NormalizeEndpoint( + aws.StringValue(s.Config.Endpoint), serviceName, + aws.StringValue(s.Config.Region), aws.BoolValue(s.Config.DisableSSL)) + + return client.Config{ + Config: s.Config, + Handlers: s.Handlers, + Endpoint: endpoint, + SigningRegion: signingRegion, + } +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/types.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/types.go new file mode 100644 index 0000000..0f067c5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/types.go @@ -0,0 +1,88 @@ +package aws + +import ( + "io" + "sync" +) + +// ReadSeekCloser wraps a io.Reader returning a ReaderSeekerCloser +func ReadSeekCloser(r io.Reader) ReaderSeekerCloser { + return ReaderSeekerCloser{r} +} + +// ReaderSeekerCloser represents a reader that can also delegate io.Seeker and +// io.Closer interfaces to the underlying object if they are available. +type ReaderSeekerCloser struct { + r io.Reader +} + +// Read reads from the reader up to size of p. The number of bytes read, and +// error if it occurred will be returned. +// +// If the reader is not an io.Reader zero bytes read, and nil error will be returned. +// +// Performs the same functionality as io.Reader Read +func (r ReaderSeekerCloser) Read(p []byte) (int, error) { + switch t := r.r.(type) { + case io.Reader: + return t.Read(p) + } + return 0, nil +} + +// Seek sets the offset for the next Read to offset, interpreted according to +// whence: 0 means relative to the origin of the file, 1 means relative to the +// current offset, and 2 means relative to the end. Seek returns the new offset +// and an error, if any. +// +// If the ReaderSeekerCloser is not an io.Seeker nothing will be done. +func (r ReaderSeekerCloser) Seek(offset int64, whence int) (int64, error) { + switch t := r.r.(type) { + case io.Seeker: + return t.Seek(offset, whence) + } + return int64(0), nil +} + +// Close closes the ReaderSeekerCloser. +// +// If the ReaderSeekerCloser is not an io.Closer nothing will be done. +func (r ReaderSeekerCloser) Close() error { + switch t := r.r.(type) { + case io.Closer: + return t.Close() + } + return nil +} + +// A WriteAtBuffer provides a in memory buffer supporting the io.WriterAt interface +// Can be used with the s3manager.Downloader to download content to a buffer +// in memory. Safe to use concurrently. +type WriteAtBuffer struct { + buf []byte + m sync.Mutex +} + +// WriteAt writes a slice of bytes to a buffer starting at the position provided +// The number of bytes written will be returned, or error. Can overwrite previous +// written slices if the write ats overlap. +func (b *WriteAtBuffer) WriteAt(p []byte, pos int64) (n int, err error) { + b.m.Lock() + defer b.m.Unlock() + + expLen := pos + int64(len(p)) + if int64(len(b.buf)) < expLen { + newBuf := make([]byte, expLen) + copy(newBuf, b.buf) + b.buf = newBuf + } + copy(b.buf[pos:], p) + return len(p), nil +} + +// Bytes returns a slice of bytes written to the buffer. +func (b *WriteAtBuffer) Bytes() []byte { + b.m.Lock() + defer b.m.Unlock() + return b.buf[:len(b.buf):len(b.buf)] +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/version.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/version.go new file mode 100644 index 0000000..c15f50b --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/aws/version.go @@ -0,0 +1,8 @@ +// Package aws provides core functionality for making requests to AWS services. +package aws + +// SDKName is the name of this AWS SDK +const SDKName = "aws-sdk-go" + +// SDKVersion is the version of this SDK +const SDKVersion = "1.1.3" diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/private/endpoints/endpoints.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/private/endpoints/endpoints.go new file mode 100644 index 0000000..2b279e6 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/private/endpoints/endpoints.go @@ -0,0 +1,65 @@ +// Package endpoints validates regional endpoints for services. +package endpoints + +//go:generate go run ../model/cli/gen-endpoints/main.go endpoints.json endpoints_map.go +//go:generate gofmt -s -w endpoints_map.go + +import ( + "fmt" + "regexp" + "strings" +) + +// NormalizeEndpoint takes and endpoint and service API information to return a +// normalized endpoint and signing region. If the endpoint is not an empty string +// the service name and region will be used to look up the service's API endpoint. +// If the endpoint is provided the scheme will be added if it is not present. +func NormalizeEndpoint(endpoint, serviceName, region string, disableSSL bool) (normEndpoint, signingRegion string) { + if endpoint == "" { + return EndpointForRegion(serviceName, region, disableSSL) + } + + return AddScheme(endpoint, disableSSL), "" +} + +// EndpointForRegion returns an endpoint and its signing region for a service and region. +// if the service and region pair are not found endpoint and signingRegion will be empty. +func EndpointForRegion(svcName, region string, disableSSL bool) (endpoint, signingRegion string) { + derivedKeys := []string{ + region + "/" + svcName, + region + "/*", + "*/" + svcName, + "*/*", + } + + for _, key := range derivedKeys { + if val, ok := endpointsMap.Endpoints[key]; ok { + ep := val.Endpoint + ep = strings.Replace(ep, "{region}", region, -1) + ep = strings.Replace(ep, "{service}", svcName, -1) + + endpoint = ep + signingRegion = val.SigningRegion + break + } + } + + return AddScheme(endpoint, disableSSL), signingRegion +} + +// Regular expression to determine if the endpoint string is prefixed with a scheme. +var schemeRE = regexp.MustCompile("^([^:]+)://") + +// AddScheme adds the HTTP or HTTPS schemes to a endpoint URL if there is no +// scheme. If disableSSL is true HTTP will be added instead of the default HTTPS. +func AddScheme(endpoint string, disableSSL bool) string { + if endpoint != "" && !schemeRE.MatchString(endpoint) { + scheme := "https" + if disableSSL { + scheme = "http" + } + endpoint = fmt.Sprintf("%s://%s", scheme, endpoint) + } + + return endpoint +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/private/endpoints/endpoints.json b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/private/endpoints/endpoints.json new file mode 100644 index 0000000..0cb6917 --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/private/endpoints/endpoints.json @@ -0,0 +1,70 @@ +{ + "version": 2, + "endpoints": { + "*/*": { + "endpoint": "{service}.{region}.amazonaws.com" + }, + "cn-north-1/*": { + "endpoint": "{service}.{region}.amazonaws.com.cn", + "signatureVersion": "v4" + }, + "us-gov-west-1/iam": { + "endpoint": "iam.us-gov.amazonaws.com" + }, + "us-gov-west-1/sts": { + "endpoint": "sts.us-gov-west-1.amazonaws.com" + }, + "us-gov-west-1/s3": { + "endpoint": "s3-{region}.amazonaws.com" + }, + "*/cloudfront": { + "endpoint": "cloudfront.amazonaws.com", + "signingRegion": "us-east-1" + }, + "*/cloudsearchdomain": { + "endpoint": "", + "signingRegion": "us-east-1" + }, + "*/data.iot": { + "endpoint": "", + "signingRegion": "us-east-1" + }, + "*/ec2metadata": { + "endpoint": "http://169.254.169.254/latest", + "signingRegion": "us-east-1" + }, + "*/iam": { + "endpoint": "iam.amazonaws.com", + "signingRegion": "us-east-1" + }, + "*/importexport": { + "endpoint": "importexport.amazonaws.com", + "signingRegion": "us-east-1" + }, + "*/route53": { + "endpoint": "route53.amazonaws.com", + "signingRegion": "us-east-1" + }, + "*/sts": { + "endpoint": "sts.amazonaws.com", + "signingRegion": "us-east-1" + }, + "*/waf": { + "endpoint": "waf.amazonaws.com", + "signingRegion": "us-east-1" + }, + "us-east-1/sdb": { + "endpoint": "sdb.amazonaws.com", + "signingRegion": "us-east-1" + }, + "*/s3": { + "endpoint": "s3-{region}.amazonaws.com" + }, + "us-east-1/s3": { + "endpoint": "s3.amazonaws.com" + }, + "eu-central-1/s3": { + "endpoint": "{service}.{region}.amazonaws.com" + } + } +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/private/endpoints/endpoints_map.go b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/private/endpoints/endpoints_map.go new file mode 100644 index 0000000..6183dcd --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/private/endpoints/endpoints_map.go @@ -0,0 +1,83 @@ +package endpoints + +// THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT. + +type endpointStruct struct { + Version int + Endpoints map[string]endpointEntry +} + +type endpointEntry struct { + Endpoint string + SigningRegion string +} + +var endpointsMap = endpointStruct{ + Version: 2, + Endpoints: map[string]endpointEntry{ + "*/*": { + Endpoint: "{service}.{region}.amazonaws.com", + }, + "*/cloudfront": { + Endpoint: "cloudfront.amazonaws.com", + SigningRegion: "us-east-1", + }, + "*/cloudsearchdomain": { + Endpoint: "", + SigningRegion: "us-east-1", + }, + "*/data.iot": { + Endpoint: "", + SigningRegion: "us-east-1", + }, + "*/ec2metadata": { + Endpoint: "http://169.254.169.254/latest", + SigningRegion: "us-east-1", + }, + "*/iam": { + Endpoint: "iam.amazonaws.com", + SigningRegion: "us-east-1", + }, + "*/importexport": { + Endpoint: "importexport.amazonaws.com", + SigningRegion: "us-east-1", + }, + "*/route53": { + Endpoint: "route53.amazonaws.com", + SigningRegion: "us-east-1", + }, + "*/s3": { + Endpoint: "s3-{region}.amazonaws.com", + }, + "*/sts": { + Endpoint: "sts.amazonaws.com", + SigningRegion: "us-east-1", + }, + "*/waf": { + Endpoint: "waf.amazonaws.com", + SigningRegion: "us-east-1", + }, + "cn-north-1/*": { + Endpoint: "{service}.{region}.amazonaws.com.cn", + }, + "eu-central-1/s3": { + Endpoint: "{service}.{region}.amazonaws.com", + }, + "us-east-1/s3": { + Endpoint: "s3.amazonaws.com", + }, + "us-east-1/sdb": { + Endpoint: "sdb.amazonaws.com", + SigningRegion: "us-east-1", + }, + "us-gov-west-1/iam": { + Endpoint: "iam.us-gov.amazonaws.com", + }, + "us-gov-west-1/s3": { + Endpoint: "s3-{region}.amazonaws.com", + }, + "us-gov-west-1/sts": { + Endpoint: "sts.us-gov-west-1.amazonaws.com", + }, + }, +} diff --git a/Godeps/_workspace/src/github.com/aws/aws-sdk-go/vendor/github.com/go-ini/ini/LICENSE b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/vendor/github.com/go-ini/ini/LICENSE new file mode 100644 index 0000000..37ec93a --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/vendor/github.com/go-ini/ini/LICENSE @@ -0,0 +1,191 @@ +Apache License +Version 2.0, January 2004 +http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. 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100644 index 0000000..b03310a --- /dev/null +++ b/Godeps/_workspace/src/github.com/aws/aws-sdk-go/vendor/github.com/jmespath/go-jmespath/LICENSE @@ -0,0 +1,13 @@ +Copyright 2015 James Saryerwinnie + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. diff --git a/Godeps/_workspace/src/github.com/beorn7/perks/quantile/exampledata.txt b/Godeps/_workspace/src/github.com/beorn7/perks/quantile/exampledata.txt new file mode 100644 index 0000000..1602287 --- /dev/null +++ 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0000000..587b1fc --- /dev/null +++ b/Godeps/_workspace/src/github.com/beorn7/perks/quantile/stream.go @@ -0,0 +1,292 @@ +// Package quantile computes approximate quantiles over an unbounded data +// stream within low memory and CPU bounds. +// +// A small amount of accuracy is traded to achieve the above properties. +// +// Multiple streams can be merged before calling Query to generate a single set +// of results. This is meaningful when the streams represent the same type of +// data. See Merge and Samples. +// +// For more detailed information about the algorithm used, see: +// +// Effective Computation of Biased Quantiles over Data Streams +// +// http://www.cs.rutgers.edu/~muthu/bquant.pdf +package quantile + +import ( + "math" + "sort" +) + +// Sample holds an observed value and meta information for compression. JSON +// tags have been added for convenience. +type Sample struct { + Value float64 `json:",string"` + Width float64 `json:",string"` + Delta float64 `json:",string"` +} + +// Samples represents a slice of samples. It implements sort.Interface. +type Samples []Sample + +func (a Samples) Len() int { return len(a) } +func (a Samples) Less(i, j int) bool { return a[i].Value < a[j].Value } +func (a Samples) Swap(i, j int) { a[i], a[j] = a[j], a[i] } + +type invariant func(s *stream, r float64) float64 + +// NewLowBiased returns an initialized Stream for low-biased quantiles +// (e.g. 0.01, 0.1, 0.5) where the needed quantiles are not known a priori, but +// error guarantees can still be given even for the lower ranks of the data +// distribution. +// +// The provided epsilon is a relative error, i.e. the true quantile of a value +// returned by a query is guaranteed to be within (1±Epsilon)*Quantile. +// +// See http://www.cs.rutgers.edu/~muthu/bquant.pdf for time, space, and error +// properties. +func NewLowBiased(epsilon float64) *Stream { + ƒ := func(s *stream, r float64) float64 { + return 2 * epsilon * r + } + return newStream(ƒ) +} + +// NewHighBiased returns an initialized Stream for high-biased quantiles +// (e.g. 0.01, 0.1, 0.5) where the needed quantiles are not known a priori, but +// error guarantees can still be given even for the higher ranks of the data +// distribution. +// +// The provided epsilon is a relative error, i.e. the true quantile of a value +// returned by a query is guaranteed to be within 1-(1±Epsilon)*(1-Quantile). +// +// See http://www.cs.rutgers.edu/~muthu/bquant.pdf for time, space, and error +// properties. +func NewHighBiased(epsilon float64) *Stream { + ƒ := func(s *stream, r float64) float64 { + return 2 * epsilon * (s.n - r) + } + return newStream(ƒ) +} + +// NewTargeted returns an initialized Stream concerned with a particular set of +// quantile values that are supplied a priori. Knowing these a priori reduces +// space and computation time. The targets map maps the desired quantiles to +// their absolute errors, i.e. the true quantile of a value returned by a query +// is guaranteed to be within (Quantile±Epsilon). +// +// See http://www.cs.rutgers.edu/~muthu/bquant.pdf for time, space, and error properties. +func NewTargeted(targets map[float64]float64) *Stream { + ƒ := func(s *stream, r float64) float64 { + var m = math.MaxFloat64 + var f float64 + for quantile, epsilon := range targets { + if quantile*s.n <= r { + f = (2 * epsilon * r) / quantile + } else { + f = (2 * epsilon * (s.n - r)) / (1 - quantile) + } + if f < m { + m = f + } + } + return m + } + return newStream(ƒ) +} + +// Stream computes quantiles for a stream of float64s. It is not thread-safe by +// design. Take care when using across multiple goroutines. +type Stream struct { + *stream + b Samples + sorted bool +} + +func newStream(ƒ invariant) *Stream { + x := &stream{ƒ: ƒ} + return &Stream{x, make(Samples, 0, 500), true} +} + +// Insert inserts v into the stream. +func (s *Stream) Insert(v float64) { + s.insert(Sample{Value: v, Width: 1}) +} + +func (s *Stream) insert(sample Sample) { + s.b = append(s.b, sample) + s.sorted = false + if len(s.b) == cap(s.b) { + s.flush() + } +} + +// Query returns the computed qth percentiles value. If s was created with +// NewTargeted, and q is not in the set of quantiles provided a priori, Query +// will return an unspecified result. +func (s *Stream) Query(q float64) float64 { + if !s.flushed() { + // Fast path when there hasn't been enough data for a flush; + // this also yields better accuracy for small sets of data. + l := len(s.b) + if l == 0 { + return 0 + } + i := int(float64(l) * q) + if i > 0 { + i -= 1 + } + s.maybeSort() + return s.b[i].Value + } + s.flush() + return s.stream.query(q) +} + +// Merge merges samples into the underlying streams samples. This is handy when +// merging multiple streams from separate threads, database shards, etc. +// +// ATTENTION: This method is broken and does not yield correct results. The +// underlying algorithm is not capable of merging streams correctly. +func (s *Stream) Merge(samples Samples) { + sort.Sort(samples) + s.stream.merge(samples) +} + +// Reset reinitializes and clears the list reusing the samples buffer memory. +func (s *Stream) Reset() { + s.stream.reset() + s.b = s.b[:0] +} + +// Samples returns stream samples held by s. +func (s *Stream) Samples() Samples { + if !s.flushed() { + return s.b + } + s.flush() + return s.stream.samples() +} + +// Count returns the total number of samples observed in the stream +// since initialization. +func (s *Stream) Count() int { + return len(s.b) + s.stream.count() +} + +func (s *Stream) flush() { + s.maybeSort() + s.stream.merge(s.b) + s.b = s.b[:0] +} + +func (s *Stream) maybeSort() { + if !s.sorted { + s.sorted = true + sort.Sort(s.b) + } +} + +func (s *Stream) flushed() bool { + return len(s.stream.l) > 0 +} + +type stream struct { + n float64 + l []Sample + ƒ invariant +} + +func (s *stream) reset() { + s.l = s.l[:0] + s.n = 0 +} + +func (s *stream) insert(v float64) { + s.merge(Samples{{v, 1, 0}}) +} + +func (s *stream) merge(samples Samples) { + // TODO(beorn7): This tries to merge not only individual samples, but + // whole summaries. The paper doesn't mention merging summaries at + // all. Unittests show that the merging is inaccurate. Find out how to + // do merges properly. + var r float64 + i := 0 + for _, sample := range samples { + for ; i < len(s.l); i++ { + c := s.l[i] + if c.Value > sample.Value { + // Insert at position i. + s.l = append(s.l, Sample{}) + copy(s.l[i+1:], s.l[i:]) + s.l[i] = Sample{ + sample.Value, + sample.Width, + math.Max(sample.Delta, math.Floor(s.ƒ(s, r))-1), + // TODO(beorn7): How to calculate delta correctly? + } + i++ + goto inserted + } + r += c.Width + } + s.l = append(s.l, Sample{sample.Value, sample.Width, 0}) + i++ + inserted: + s.n += sample.Width + r += sample.Width + } + s.compress() +} + +func (s *stream) count() int { + return int(s.n) +} + +func (s *stream) query(q float64) float64 { + t := math.Ceil(q * s.n) + t += math.Ceil(s.ƒ(s, t) / 2) + p := s.l[0] + var r float64 + for _, c := range s.l[1:] { + r += p.Width + if r+c.Width+c.Delta > t { + return p.Value + } + p = c + } + return p.Value +} + +func (s *stream) compress() { + if len(s.l) < 2 { + return + } + x := s.l[len(s.l)-1] + xi := len(s.l) - 1 + r := s.n - 1 - x.Width + + for i := len(s.l) - 2; i >= 0; i-- { + c := s.l[i] + if c.Width+x.Width+x.Delta <= s.ƒ(s, r) { + x.Width += c.Width + s.l[xi] = x + // Remove element at i. + copy(s.l[i:], s.l[i+1:]) + s.l = s.l[:len(s.l)-1] + xi -= 1 + } else { + x = c + xi = i + } + r -= c.Width + } +} + +func (s *stream) samples() Samples { + samples := make(Samples, len(s.l)) + copy(samples, s.l) + return samples +} diff --git a/Godeps/_workspace/src/github.com/coreos/go-systemd/LICENSE b/Godeps/_workspace/src/github.com/coreos/go-systemd/LICENSE new file mode 100644 index 0000000..37ec93a --- /dev/null +++ b/Godeps/_workspace/src/github.com/coreos/go-systemd/LICENSE @@ -0,0 +1,191 @@ +Apache License +Version 2.0, January 2004 +http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. 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We also +recommend that a file or class name and description of purpose be included on +the same "printed page" as the copyright notice for easier identification within +third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/dbus.go b/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/dbus.go new file mode 100644 index 0000000..5dd748e --- /dev/null +++ b/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/dbus.go @@ -0,0 +1,187 @@ +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Integration with the systemd D-Bus API. See http://www.freedesktop.org/wiki/Software/systemd/dbus/ +package dbus + +import ( + "fmt" + "os" + "strconv" + "strings" + "sync" + + "github.com/godbus/dbus" +) + +const ( + alpha = `abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ` + num = `0123456789` + alphanum = alpha + num + signalBuffer = 100 +) + +// needsEscape checks whether a byte in a potential dbus ObjectPath needs to be escaped +func needsEscape(i int, b byte) bool { + // Escape everything that is not a-z-A-Z-0-9 + // Also escape 0-9 if it's the first character + return strings.IndexByte(alphanum, b) == -1 || + (i == 0 && strings.IndexByte(num, b) != -1) +} + +// PathBusEscape sanitizes a constituent string of a dbus ObjectPath using the +// rules that systemd uses for serializing special characters. +func PathBusEscape(path string) string { + // Special case the empty string + if len(path) == 0 { + return "_" + } + n := []byte{} + for i := 0; i < len(path); i++ { + c := path[i] + if needsEscape(i, c) { + e := fmt.Sprintf("_%x", c) + n = append(n, []byte(e)...) + } else { + n = append(n, c) + } + } + return string(n) +} + +// Conn is a connection to systemd's dbus endpoint. +type Conn struct { + // sysconn/sysobj are only used to call dbus methods + sysconn *dbus.Conn + sysobj dbus.BusObject + + // sigconn/sigobj are only used to receive dbus signals + sigconn *dbus.Conn + sigobj dbus.BusObject + + jobListener struct { + jobs map[dbus.ObjectPath]chan<- string + sync.Mutex + } + subscriber struct { + updateCh chan<- *SubStateUpdate + errCh chan<- error + sync.Mutex + ignore map[dbus.ObjectPath]int64 + cleanIgnore int64 + } +} + +// New establishes a connection to the system bus and authenticates. +// Callers should call Close() when done with the connection. +func New() (*Conn, error) { + return newConnection(func() (*dbus.Conn, error) { + return dbusAuthHelloConnection(dbus.SystemBusPrivate) + }) +} + +// NewUserConnection establishes a connection to the session bus and +// authenticates. This can be used to connect to systemd user instances. +// Callers should call Close() when done with the connection. +func NewUserConnection() (*Conn, error) { + return newConnection(func() (*dbus.Conn, error) { + return dbusAuthHelloConnection(dbus.SessionBusPrivate) + }) +} + +// NewSystemdConnection establishes a private, direct connection to systemd. +// This can be used for communicating with systemd without a dbus daemon. +// Callers should call Close() when done with the connection. +func NewSystemdConnection() (*Conn, error) { + return newConnection(func() (*dbus.Conn, error) { + // We skip Hello when talking directly to systemd. + return dbusAuthConnection(func() (*dbus.Conn, error) { + return dbus.Dial("unix:path=/run/systemd/private") + }) + }) +} + +// Close closes an established connection +func (c *Conn) Close() { + c.sysconn.Close() + c.sigconn.Close() +} + +func newConnection(createBus func() (*dbus.Conn, error)) (*Conn, error) { + sysconn, err := createBus() + if err != nil { + return nil, err + } + + sigconn, err := createBus() + if err != nil { + sysconn.Close() + return nil, err + } + + c := &Conn{ + sysconn: sysconn, + sysobj: systemdObject(sysconn), + sigconn: sigconn, + sigobj: systemdObject(sigconn), + } + + c.subscriber.ignore = make(map[dbus.ObjectPath]int64) + c.jobListener.jobs = make(map[dbus.ObjectPath]chan<- string) + + // Setup the listeners on jobs so that we can get completions + c.sigconn.BusObject().Call("org.freedesktop.DBus.AddMatch", 0, + "type='signal', interface='org.freedesktop.systemd1.Manager', member='JobRemoved'") + + c.dispatch() + return c, nil +} + +func dbusAuthConnection(createBus func() (*dbus.Conn, error)) (*dbus.Conn, error) { + conn, err := createBus() + if err != nil { + return nil, err + } + + // Only use EXTERNAL method, and hardcode the uid (not username) + // to avoid a username lookup (which requires a dynamically linked + // libc) + methods := []dbus.Auth{dbus.AuthExternal(strconv.Itoa(os.Getuid()))} + + err = conn.Auth(methods) + if err != nil { + conn.Close() + return nil, err + } + + return conn, nil +} + +func dbusAuthHelloConnection(createBus func() (*dbus.Conn, error)) (*dbus.Conn, error) { + conn, err := dbusAuthConnection(createBus) + if err != nil { + return nil, err + } + + if err = conn.Hello(); err != nil { + conn.Close() + return nil, err + } + + return conn, nil +} + +func systemdObject(conn *dbus.Conn) dbus.BusObject { + return conn.Object("org.freedesktop.systemd1", dbus.ObjectPath("/org/freedesktop/systemd1")) +} diff --git a/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/methods.go b/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/methods.go new file mode 100644 index 0000000..ab614c7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/methods.go @@ -0,0 +1,410 @@ +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package dbus + +import ( + "errors" + "path" + "strconv" + + "github.com/godbus/dbus" +) + +func (c *Conn) jobComplete(signal *dbus.Signal) { + var id uint32 + var job dbus.ObjectPath + var unit string + var result string + dbus.Store(signal.Body, &id, &job, &unit, &result) + c.jobListener.Lock() + out, ok := c.jobListener.jobs[job] + if ok { + out <- result + delete(c.jobListener.jobs, job) + } + c.jobListener.Unlock() +} + +func (c *Conn) startJob(ch chan<- string, job string, args ...interface{}) (int, error) { + if ch != nil { + c.jobListener.Lock() + defer c.jobListener.Unlock() + } + + var p dbus.ObjectPath + err := c.sysobj.Call(job, 0, args...).Store(&p) + if err != nil { + return 0, err + } + + if ch != nil { + c.jobListener.jobs[p] = ch + } + + // ignore error since 0 is fine if conversion fails + jobID, _ := strconv.Atoi(path.Base(string(p))) + + return jobID, nil +} + +// StartUnit enqueues a start job and depending jobs, if any (unless otherwise +// specified by the mode string). +// +// Takes the unit to activate, plus a mode string. The mode needs to be one of +// replace, fail, isolate, ignore-dependencies, ignore-requirements. If +// "replace" the call will start the unit and its dependencies, possibly +// replacing already queued jobs that conflict with this. If "fail" the call +// will start the unit and its dependencies, but will fail if this would change +// an already queued job. If "isolate" the call will start the unit in question +// and terminate all units that aren't dependencies of it. If +// "ignore-dependencies" it will start a unit but ignore all its dependencies. +// If "ignore-requirements" it will start a unit but only ignore the +// requirement dependencies. It is not recommended to make use of the latter +// two options. +// +// If the provided channel is non-nil, a result string will be sent to it upon +// job completion: one of done, canceled, timeout, failed, dependency, skipped. +// done indicates successful execution of a job. canceled indicates that a job +// has been canceled before it finished execution. timeout indicates that the +// job timeout was reached. failed indicates that the job failed. dependency +// indicates that a job this job has been depending on failed and the job hence +// has been removed too. skipped indicates that a job was skipped because it +// didn't apply to the units current state. +// +// If no error occurs, the ID of the underlying systemd job will be returned. There +// does exist the possibility for no error to be returned, but for the returned job +// ID to be 0. In this case, the actual underlying ID is not 0 and this datapoint +// should not be considered authoritative. +// +// If an error does occur, it will be returned to the user alongside a job ID of 0. +func (c *Conn) StartUnit(name string, mode string, ch chan<- string) (int, error) { + return c.startJob(ch, "org.freedesktop.systemd1.Manager.StartUnit", name, mode) +} + +// StopUnit is similar to StartUnit but stops the specified unit rather +// than starting it. +func (c *Conn) StopUnit(name string, mode string, ch chan<- string) (int, error) { + return c.startJob(ch, "org.freedesktop.systemd1.Manager.StopUnit", name, mode) +} + +// ReloadUnit reloads a unit. Reloading is done only if the unit is already running and fails otherwise. +func (c *Conn) ReloadUnit(name string, mode string, ch chan<- string) (int, error) { + return c.startJob(ch, "org.freedesktop.systemd1.Manager.ReloadUnit", name, mode) +} + +// RestartUnit restarts a service. If a service is restarted that isn't +// running it will be started. +func (c *Conn) RestartUnit(name string, mode string, ch chan<- string) (int, error) { + return c.startJob(ch, "org.freedesktop.systemd1.Manager.RestartUnit", name, mode) +} + +// TryRestartUnit is like RestartUnit, except that a service that isn't running +// is not affected by the restart. +func (c *Conn) TryRestartUnit(name string, mode string, ch chan<- string) (int, error) { + return c.startJob(ch, "org.freedesktop.systemd1.Manager.TryRestartUnit", name, mode) +} + +// ReloadOrRestart attempts a reload if the unit supports it and use a restart +// otherwise. +func (c *Conn) ReloadOrRestartUnit(name string, mode string, ch chan<- string) (int, error) { + return c.startJob(ch, "org.freedesktop.systemd1.Manager.ReloadOrRestartUnit", name, mode) +} + +// ReloadOrTryRestart attempts a reload if the unit supports it and use a "Try" +// flavored restart otherwise. +func (c *Conn) ReloadOrTryRestartUnit(name string, mode string, ch chan<- string) (int, error) { + return c.startJob(ch, "org.freedesktop.systemd1.Manager.ReloadOrTryRestartUnit", name, mode) +} + +// StartTransientUnit() may be used to create and start a transient unit, which +// will be released as soon as it is not running or referenced anymore or the +// system is rebooted. name is the unit name including suffix, and must be +// unique. mode is the same as in StartUnit(), properties contains properties +// of the unit. +func (c *Conn) StartTransientUnit(name string, mode string, properties []Property, ch chan<- string) (int, error) { + return c.startJob(ch, "org.freedesktop.systemd1.Manager.StartTransientUnit", name, mode, properties, make([]PropertyCollection, 0)) +} + +// KillUnit takes the unit name and a UNIX signal number to send. All of the unit's +// processes are killed. +func (c *Conn) KillUnit(name string, signal int32) { + c.sysobj.Call("org.freedesktop.systemd1.Manager.KillUnit", 0, name, "all", signal).Store() +} + +// ResetFailedUnit resets the "failed" state of a specific unit. +func (c *Conn) ResetFailedUnit(name string) error { + return c.sysobj.Call("org.freedesktop.systemd1.Manager.ResetFailedUnit", 0, name).Store() +} + +// getProperties takes the unit name and returns all of its dbus object properties, for the given dbus interface +func (c *Conn) getProperties(unit string, dbusInterface string) (map[string]interface{}, error) { + var err error + var props map[string]dbus.Variant + + path := unitPath(unit) + if !path.IsValid() { + return nil, errors.New("invalid unit name: " + unit) + } + + obj := c.sysconn.Object("org.freedesktop.systemd1", path) + err = obj.Call("org.freedesktop.DBus.Properties.GetAll", 0, dbusInterface).Store(&props) + if err != nil { + return nil, err + } + + out := make(map[string]interface{}, len(props)) + for k, v := range props { + out[k] = v.Value() + } + + return out, nil +} + +// GetUnitProperties takes the unit name and returns all of its dbus object properties. +func (c *Conn) GetUnitProperties(unit string) (map[string]interface{}, error) { + return c.getProperties(unit, "org.freedesktop.systemd1.Unit") +} + +func (c *Conn) getProperty(unit string, dbusInterface string, propertyName string) (*Property, error) { + var err error + var prop dbus.Variant + + path := unitPath(unit) + if !path.IsValid() { + return nil, errors.New("invalid unit name: " + unit) + } + + obj := c.sysconn.Object("org.freedesktop.systemd1", path) + err = obj.Call("org.freedesktop.DBus.Properties.Get", 0, dbusInterface, propertyName).Store(&prop) + if err != nil { + return nil, err + } + + return &Property{Name: propertyName, Value: prop}, nil +} + +func (c *Conn) GetUnitProperty(unit string, propertyName string) (*Property, error) { + return c.getProperty(unit, "org.freedesktop.systemd1.Unit", propertyName) +} + +// GetUnitTypeProperties returns the extra properties for a unit, specific to the unit type. +// Valid values for unitType: Service, Socket, Target, Device, Mount, Automount, Snapshot, Timer, Swap, Path, Slice, Scope +// return "dbus.Error: Unknown interface" if the unitType is not the correct type of the unit +func (c *Conn) GetUnitTypeProperties(unit string, unitType string) (map[string]interface{}, error) { + return c.getProperties(unit, "org.freedesktop.systemd1."+unitType) +} + +// SetUnitProperties() may be used to modify certain unit properties at runtime. +// Not all properties may be changed at runtime, but many resource management +// settings (primarily those in systemd.cgroup(5)) may. The changes are applied +// instantly, and stored on disk for future boots, unless runtime is true, in which +// case the settings only apply until the next reboot. name is the name of the unit +// to modify. properties are the settings to set, encoded as an array of property +// name and value pairs. +func (c *Conn) SetUnitProperties(name string, runtime bool, properties ...Property) error { + return c.sysobj.Call("org.freedesktop.systemd1.Manager.SetUnitProperties", 0, name, runtime, properties).Store() +} + +func (c *Conn) GetUnitTypeProperty(unit string, unitType string, propertyName string) (*Property, error) { + return c.getProperty(unit, "org.freedesktop.systemd1."+unitType, propertyName) +} + +// ListUnits returns an array with all currently loaded units. Note that +// units may be known by multiple names at the same time, and hence there might +// be more unit names loaded than actual units behind them. +func (c *Conn) ListUnits() ([]UnitStatus, error) { + result := make([][]interface{}, 0) + err := c.sysobj.Call("org.freedesktop.systemd1.Manager.ListUnits", 0).Store(&result) + if err != nil { + return nil, err + } + + resultInterface := make([]interface{}, len(result)) + for i := range result { + resultInterface[i] = result[i] + } + + status := make([]UnitStatus, len(result)) + statusInterface := make([]interface{}, len(status)) + for i := range status { + statusInterface[i] = &status[i] + } + + err = dbus.Store(resultInterface, statusInterface...) + if err != nil { + return nil, err + } + + return status, nil +} + +type UnitStatus struct { + Name string // The primary unit name as string + Description string // The human readable description string + LoadState string // The load state (i.e. whether the unit file has been loaded successfully) + ActiveState string // The active state (i.e. whether the unit is currently started or not) + SubState string // The sub state (a more fine-grained version of the active state that is specific to the unit type, which the active state is not) + Followed string // A unit that is being followed in its state by this unit, if there is any, otherwise the empty string. + Path dbus.ObjectPath // The unit object path + JobId uint32 // If there is a job queued for the job unit the numeric job id, 0 otherwise + JobType string // The job type as string + JobPath dbus.ObjectPath // The job object path +} + +type LinkUnitFileChange EnableUnitFileChange + +// LinkUnitFiles() links unit files (that are located outside of the +// usual unit search paths) into the unit search path. +// +// It takes a list of absolute paths to unit files to link and two +// booleans. The first boolean controls whether the unit shall be +// enabled for runtime only (true, /run), or persistently (false, +// /etc). +// The second controls whether symlinks pointing to other units shall +// be replaced if necessary. +// +// This call returns a list of the changes made. The list consists of +// structures with three strings: the type of the change (one of symlink +// or unlink), the file name of the symlink and the destination of the +// symlink. +func (c *Conn) LinkUnitFiles(files []string, runtime bool, force bool) ([]LinkUnitFileChange, error) { + result := make([][]interface{}, 0) + err := c.sysobj.Call("org.freedesktop.systemd1.Manager.LinkUnitFiles", 0, files, runtime, force).Store(&result) + if err != nil { + return nil, err + } + + resultInterface := make([]interface{}, len(result)) + for i := range result { + resultInterface[i] = result[i] + } + + changes := make([]LinkUnitFileChange, len(result)) + changesInterface := make([]interface{}, len(changes)) + for i := range changes { + changesInterface[i] = &changes[i] + } + + err = dbus.Store(resultInterface, changesInterface...) + if err != nil { + return nil, err + } + + return changes, nil +} + +// EnableUnitFiles() may be used to enable one or more units in the system (by +// creating symlinks to them in /etc or /run). +// +// It takes a list of unit files to enable (either just file names or full +// absolute paths if the unit files are residing outside the usual unit +// search paths), and two booleans: the first controls whether the unit shall +// be enabled for runtime only (true, /run), or persistently (false, /etc). +// The second one controls whether symlinks pointing to other units shall +// be replaced if necessary. +// +// This call returns one boolean and an array with the changes made. The +// boolean signals whether the unit files contained any enablement +// information (i.e. an [Install]) section. The changes list consists of +// structures with three strings: the type of the change (one of symlink +// or unlink), the file name of the symlink and the destination of the +// symlink. +func (c *Conn) EnableUnitFiles(files []string, runtime bool, force bool) (bool, []EnableUnitFileChange, error) { + var carries_install_info bool + + result := make([][]interface{}, 0) + err := c.sysobj.Call("org.freedesktop.systemd1.Manager.EnableUnitFiles", 0, files, runtime, force).Store(&carries_install_info, &result) + if err != nil { + return false, nil, err + } + + resultInterface := make([]interface{}, len(result)) + for i := range result { + resultInterface[i] = result[i] + } + + changes := make([]EnableUnitFileChange, len(result)) + changesInterface := make([]interface{}, len(changes)) + for i := range changes { + changesInterface[i] = &changes[i] + } + + err = dbus.Store(resultInterface, changesInterface...) + if err != nil { + return false, nil, err + } + + return carries_install_info, changes, nil +} + +type EnableUnitFileChange struct { + Type string // Type of the change (one of symlink or unlink) + Filename string // File name of the symlink + Destination string // Destination of the symlink +} + +// DisableUnitFiles() may be used to disable one or more units in the system (by +// removing symlinks to them from /etc or /run). +// +// It takes a list of unit files to disable (either just file names or full +// absolute paths if the unit files are residing outside the usual unit +// search paths), and one boolean: whether the unit was enabled for runtime +// only (true, /run), or persistently (false, /etc). +// +// This call returns an array with the changes made. The changes list +// consists of structures with three strings: the type of the change (one of +// symlink or unlink), the file name of the symlink and the destination of the +// symlink. +func (c *Conn) DisableUnitFiles(files []string, runtime bool) ([]DisableUnitFileChange, error) { + result := make([][]interface{}, 0) + err := c.sysobj.Call("org.freedesktop.systemd1.Manager.DisableUnitFiles", 0, files, runtime).Store(&result) + if err != nil { + return nil, err + } + + resultInterface := make([]interface{}, len(result)) + for i := range result { + resultInterface[i] = result[i] + } + + changes := make([]DisableUnitFileChange, len(result)) + changesInterface := make([]interface{}, len(changes)) + for i := range changes { + changesInterface[i] = &changes[i] + } + + err = dbus.Store(resultInterface, changesInterface...) + if err != nil { + return nil, err + } + + return changes, nil +} + +type DisableUnitFileChange struct { + Type string // Type of the change (one of symlink or unlink) + Filename string // File name of the symlink + Destination string // Destination of the symlink +} + +// Reload instructs systemd to scan for and reload unit files. This is +// equivalent to a 'systemctl daemon-reload'. +func (c *Conn) Reload() error { + return c.sysobj.Call("org.freedesktop.systemd1.Manager.Reload", 0).Store() +} + +func unitPath(name string) dbus.ObjectPath { + return dbus.ObjectPath("/org/freedesktop/systemd1/unit/" + PathBusEscape(name)) +} diff --git a/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/properties.go b/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/properties.go new file mode 100644 index 0000000..7520011 --- /dev/null +++ b/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/properties.go @@ -0,0 +1,218 @@ +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package dbus + +import ( + "github.com/godbus/dbus" +) + +// From the systemd docs: +// +// The properties array of StartTransientUnit() may take many of the settings +// that may also be configured in unit files. Not all parameters are currently +// accepted though, but we plan to cover more properties with future release. +// Currently you may set the Description, Slice and all dependency types of +// units, as well as RemainAfterExit, ExecStart for service units, +// TimeoutStopUSec and PIDs for scope units, and CPUAccounting, CPUShares, +// BlockIOAccounting, BlockIOWeight, BlockIOReadBandwidth, +// BlockIOWriteBandwidth, BlockIODeviceWeight, MemoryAccounting, MemoryLimit, +// DevicePolicy, DeviceAllow for services/scopes/slices. These fields map +// directly to their counterparts in unit files and as normal D-Bus object +// properties. The exception here is the PIDs field of scope units which is +// used for construction of the scope only and specifies the initial PIDs to +// add to the scope object. + +type Property struct { + Name string + Value dbus.Variant +} + +type PropertyCollection struct { + Name string + Properties []Property +} + +type execStart struct { + Path string // the binary path to execute + Args []string // an array with all arguments to pass to the executed command, starting with argument 0 + UncleanIsFailure bool // a boolean whether it should be considered a failure if the process exits uncleanly +} + +// PropExecStart sets the ExecStart service property. The first argument is a +// slice with the binary path to execute followed by the arguments to pass to +// the executed command. See +// http://www.freedesktop.org/software/systemd/man/systemd.service.html#ExecStart= +func PropExecStart(command []string, uncleanIsFailure bool) Property { + execStarts := []execStart{ + execStart{ + Path: command[0], + Args: command, + UncleanIsFailure: uncleanIsFailure, + }, + } + + return Property{ + Name: "ExecStart", + Value: dbus.MakeVariant(execStarts), + } +} + +// PropRemainAfterExit sets the RemainAfterExit service property. See +// http://www.freedesktop.org/software/systemd/man/systemd.service.html#RemainAfterExit= +func PropRemainAfterExit(b bool) Property { + return Property{ + Name: "RemainAfterExit", + Value: dbus.MakeVariant(b), + } +} + +// PropDescription sets the Description unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit#Description= +func PropDescription(desc string) Property { + return Property{ + Name: "Description", + Value: dbus.MakeVariant(desc), + } +} + +func propDependency(name string, units []string) Property { + return Property{ + Name: name, + Value: dbus.MakeVariant(units), + } +} + +// PropRequires sets the Requires unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#Requires= +func PropRequires(units ...string) Property { + return propDependency("Requires", units) +} + +// PropRequiresOverridable sets the RequiresOverridable unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#RequiresOverridable= +func PropRequiresOverridable(units ...string) Property { + return propDependency("RequiresOverridable", units) +} + +// PropRequisite sets the Requisite unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#Requisite= +func PropRequisite(units ...string) Property { + return propDependency("Requisite", units) +} + +// PropRequisiteOverridable sets the RequisiteOverridable unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#RequisiteOverridable= +func PropRequisiteOverridable(units ...string) Property { + return propDependency("RequisiteOverridable", units) +} + +// PropWants sets the Wants unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#Wants= +func PropWants(units ...string) Property { + return propDependency("Wants", units) +} + +// PropBindsTo sets the BindsTo unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#BindsTo= +func PropBindsTo(units ...string) Property { + return propDependency("BindsTo", units) +} + +// PropRequiredBy sets the RequiredBy unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#RequiredBy= +func PropRequiredBy(units ...string) Property { + return propDependency("RequiredBy", units) +} + +// PropRequiredByOverridable sets the RequiredByOverridable unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#RequiredByOverridable= +func PropRequiredByOverridable(units ...string) Property { + return propDependency("RequiredByOverridable", units) +} + +// PropWantedBy sets the WantedBy unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#WantedBy= +func PropWantedBy(units ...string) Property { + return propDependency("WantedBy", units) +} + +// PropBoundBy sets the BoundBy unit property. See +// http://www.freedesktop.org/software/systemd/main/systemd.unit.html#BoundBy= +func PropBoundBy(units ...string) Property { + return propDependency("BoundBy", units) +} + +// PropConflicts sets the Conflicts unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#Conflicts= +func PropConflicts(units ...string) Property { + return propDependency("Conflicts", units) +} + +// PropConflictedBy sets the ConflictedBy unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#ConflictedBy= +func PropConflictedBy(units ...string) Property { + return propDependency("ConflictedBy", units) +} + +// PropBefore sets the Before unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#Before= +func PropBefore(units ...string) Property { + return propDependency("Before", units) +} + +// PropAfter sets the After unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#After= +func PropAfter(units ...string) Property { + return propDependency("After", units) +} + +// PropOnFailure sets the OnFailure unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#OnFailure= +func PropOnFailure(units ...string) Property { + return propDependency("OnFailure", units) +} + +// PropTriggers sets the Triggers unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#Triggers= +func PropTriggers(units ...string) Property { + return propDependency("Triggers", units) +} + +// PropTriggeredBy sets the TriggeredBy unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#TriggeredBy= +func PropTriggeredBy(units ...string) Property { + return propDependency("TriggeredBy", units) +} + +// PropPropagatesReloadTo sets the PropagatesReloadTo unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#PropagatesReloadTo= +func PropPropagatesReloadTo(units ...string) Property { + return propDependency("PropagatesReloadTo", units) +} + +// PropRequiresMountsFor sets the RequiresMountsFor unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#RequiresMountsFor= +func PropRequiresMountsFor(units ...string) Property { + return propDependency("RequiresMountsFor", units) +} + +// PropSlice sets the Slice unit property. See +// http://www.freedesktop.org/software/systemd/man/systemd.resource-control.html#Slice= +func PropSlice(slice string) Property { + return Property{ + Name: "Slice", + Value: dbus.MakeVariant(slice), + } +} diff --git a/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/set.go b/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/set.go new file mode 100644 index 0000000..f92e6fb --- /dev/null +++ b/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/set.go @@ -0,0 +1,47 @@ +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package dbus + +type set struct { + data map[string]bool +} + +func (s *set) Add(value string) { + s.data[value] = true +} + +func (s *set) Remove(value string) { + delete(s.data, value) +} + +func (s *set) Contains(value string) (exists bool) { + _, exists = s.data[value] + return +} + +func (s *set) Length() int { + return len(s.data) +} + +func (s *set) Values() (values []string) { + for val, _ := range s.data { + values = append(values, val) + } + return +} + +func newSet() *set { + return &set{make(map[string]bool)} +} diff --git a/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/subscription.go b/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/subscription.go new file mode 100644 index 0000000..9964514 --- /dev/null +++ b/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/subscription.go @@ -0,0 +1,250 @@ +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package dbus + +import ( + "errors" + "time" + + "github.com/godbus/dbus" +) + +const ( + cleanIgnoreInterval = int64(10 * time.Second) + ignoreInterval = int64(30 * time.Millisecond) +) + +// Subscribe sets up this connection to subscribe to all systemd dbus events. +// This is required before calling SubscribeUnits. When the connection closes +// systemd will automatically stop sending signals so there is no need to +// explicitly call Unsubscribe(). +func (c *Conn) Subscribe() error { + c.sigconn.BusObject().Call("org.freedesktop.DBus.AddMatch", 0, + "type='signal',interface='org.freedesktop.systemd1.Manager',member='UnitNew'") + c.sigconn.BusObject().Call("org.freedesktop.DBus.AddMatch", 0, + "type='signal',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'") + + err := c.sigobj.Call("org.freedesktop.systemd1.Manager.Subscribe", 0).Store() + if err != nil { + return err + } + + return nil +} + +// Unsubscribe this connection from systemd dbus events. +func (c *Conn) Unsubscribe() error { + err := c.sigobj.Call("org.freedesktop.systemd1.Manager.Unsubscribe", 0).Store() + if err != nil { + return err + } + + return nil +} + +func (c *Conn) dispatch() { + ch := make(chan *dbus.Signal, signalBuffer) + + c.sigconn.Signal(ch) + + go func() { + for { + signal, ok := <-ch + if !ok { + return + } + + if signal.Name == "org.freedesktop.systemd1.Manager.JobRemoved" { + c.jobComplete(signal) + } + + if c.subscriber.updateCh == nil { + continue + } + + var unitPath dbus.ObjectPath + switch signal.Name { + case "org.freedesktop.systemd1.Manager.JobRemoved": + unitName := signal.Body[2].(string) + c.sysobj.Call("org.freedesktop.systemd1.Manager.GetUnit", 0, unitName).Store(&unitPath) + case "org.freedesktop.systemd1.Manager.UnitNew": + unitPath = signal.Body[1].(dbus.ObjectPath) + case "org.freedesktop.DBus.Properties.PropertiesChanged": + if signal.Body[0].(string) == "org.freedesktop.systemd1.Unit" { + unitPath = signal.Path + } + } + + if unitPath == dbus.ObjectPath("") { + continue + } + + c.sendSubStateUpdate(unitPath) + } + }() +} + +// Returns two unbuffered channels which will receive all changed units every +// interval. Deleted units are sent as nil. +func (c *Conn) SubscribeUnits(interval time.Duration) (<-chan map[string]*UnitStatus, <-chan error) { + return c.SubscribeUnitsCustom(interval, 0, func(u1, u2 *UnitStatus) bool { return *u1 != *u2 }, nil) +} + +// SubscribeUnitsCustom is like SubscribeUnits but lets you specify the buffer +// size of the channels, the comparison function for detecting changes and a filter +// function for cutting down on the noise that your channel receives. +func (c *Conn) SubscribeUnitsCustom(interval time.Duration, buffer int, isChanged func(*UnitStatus, *UnitStatus) bool, filterUnit func(string) bool) (<-chan map[string]*UnitStatus, <-chan error) { + old := make(map[string]*UnitStatus) + statusChan := make(chan map[string]*UnitStatus, buffer) + errChan := make(chan error, buffer) + + go func() { + for { + timerChan := time.After(interval) + + units, err := c.ListUnits() + if err == nil { + cur := make(map[string]*UnitStatus) + for i := range units { + if filterUnit != nil && filterUnit(units[i].Name) { + continue + } + cur[units[i].Name] = &units[i] + } + + // add all new or changed units + changed := make(map[string]*UnitStatus) + for n, u := range cur { + if oldU, ok := old[n]; !ok || isChanged(oldU, u) { + changed[n] = u + } + delete(old, n) + } + + // add all deleted units + for oldN := range old { + changed[oldN] = nil + } + + old = cur + + if len(changed) != 0 { + statusChan <- changed + } + } else { + errChan <- err + } + + <-timerChan + } + }() + + return statusChan, errChan +} + +type SubStateUpdate struct { + UnitName string + SubState string +} + +// SetSubStateSubscriber writes to updateCh when any unit's substate changes. +// Although this writes to updateCh on every state change, the reported state +// may be more recent than the change that generated it (due to an unavoidable +// race in the systemd dbus interface). That is, this method provides a good +// way to keep a current view of all units' states, but is not guaranteed to +// show every state transition they go through. Furthermore, state changes +// will only be written to the channel with non-blocking writes. If updateCh +// is full, it attempts to write an error to errCh; if errCh is full, the error +// passes silently. +func (c *Conn) SetSubStateSubscriber(updateCh chan<- *SubStateUpdate, errCh chan<- error) { + c.subscriber.Lock() + defer c.subscriber.Unlock() + c.subscriber.updateCh = updateCh + c.subscriber.errCh = errCh +} + +func (c *Conn) sendSubStateUpdate(path dbus.ObjectPath) { + c.subscriber.Lock() + defer c.subscriber.Unlock() + + if c.shouldIgnore(path) { + return + } + + info, err := c.GetUnitProperties(string(path)) + if err != nil { + select { + case c.subscriber.errCh <- err: + default: + } + } + + name := info["Id"].(string) + substate := info["SubState"].(string) + + update := &SubStateUpdate{name, substate} + select { + case c.subscriber.updateCh <- update: + default: + select { + case c.subscriber.errCh <- errors.New("update channel full!"): + default: + } + } + + c.updateIgnore(path, info) +} + +// The ignore functions work around a wart in the systemd dbus interface. +// Requesting the properties of an unloaded unit will cause systemd to send a +// pair of UnitNew/UnitRemoved signals. Because we need to get a unit's +// properties on UnitNew (as that's the only indication of a new unit coming up +// for the first time), we would enter an infinite loop if we did not attempt +// to detect and ignore these spurious signals. The signal themselves are +// indistinguishable from relevant ones, so we (somewhat hackishly) ignore an +// unloaded unit's signals for a short time after requesting its properties. +// This means that we will miss e.g. a transient unit being restarted +// *immediately* upon failure and also a transient unit being started +// immediately after requesting its status (with systemctl status, for example, +// because this causes a UnitNew signal to be sent which then causes us to fetch +// the properties). + +func (c *Conn) shouldIgnore(path dbus.ObjectPath) bool { + t, ok := c.subscriber.ignore[path] + return ok && t >= time.Now().UnixNano() +} + +func (c *Conn) updateIgnore(path dbus.ObjectPath, info map[string]interface{}) { + c.cleanIgnore() + + // unit is unloaded - it will trigger bad systemd dbus behavior + if info["LoadState"].(string) == "not-found" { + c.subscriber.ignore[path] = time.Now().UnixNano() + ignoreInterval + } +} + +// without this, ignore would grow unboundedly over time +func (c *Conn) cleanIgnore() { + now := time.Now().UnixNano() + if c.subscriber.cleanIgnore < now { + c.subscriber.cleanIgnore = now + cleanIgnoreInterval + + for p, t := range c.subscriber.ignore { + if t < now { + delete(c.subscriber.ignore, p) + } + } + } +} diff --git a/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/subscription_set.go b/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/subscription_set.go new file mode 100644 index 0000000..5b408d5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/coreos/go-systemd/dbus/subscription_set.go @@ -0,0 +1,57 @@ +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package dbus + +import ( + "time" +) + +// SubscriptionSet returns a subscription set which is like conn.Subscribe but +// can filter to only return events for a set of units. +type SubscriptionSet struct { + *set + conn *Conn +} + +func (s *SubscriptionSet) filter(unit string) bool { + return !s.Contains(unit) +} + +// Subscribe starts listening for dbus events for all of the units in the set. +// Returns channels identical to conn.SubscribeUnits. +func (s *SubscriptionSet) Subscribe() (<-chan map[string]*UnitStatus, <-chan error) { + // TODO: Make fully evented by using systemd 209 with properties changed values + return s.conn.SubscribeUnitsCustom(time.Second, 0, + mismatchUnitStatus, + func(unit string) bool { return s.filter(unit) }, + ) +} + +// NewSubscriptionSet returns a new subscription set. +func (conn *Conn) NewSubscriptionSet() *SubscriptionSet { + return &SubscriptionSet{newSet(), conn} +} + +// mismatchUnitStatus returns true if the provided UnitStatus objects +// are not equivalent. false is returned if the objects are equivalent. +// Only the Name, Description and state-related fields are used in +// the comparison. +func mismatchUnitStatus(u1, u2 *UnitStatus) bool { + return u1.Name != u2.Name || + u1.Description != u2.Description || + u1.LoadState != u2.LoadState || + u1.ActiveState != u2.ActiveState || + u1.SubState != u2.SubState +} diff --git a/Godeps/_workspace/src/github.com/coreos/go-systemd/util/util.go b/Godeps/_workspace/src/github.com/coreos/go-systemd/util/util.go new file mode 100644 index 0000000..33832a1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/coreos/go-systemd/util/util.go @@ -0,0 +1,33 @@ +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Package util contains utility functions related to systemd that applications +// can use to check things like whether systemd is running. +package util + +import ( + "os" +) + +// IsRunningSystemd checks whether the host was booted with systemd as its init +// system. This functions similar to systemd's `sd_booted(3)`: internally, it +// checks whether /run/systemd/system/ exists and is a directory. +// http://www.freedesktop.org/software/systemd/man/sd_booted.html +func IsRunningSystemd() bool { + fi, err := os.Lstat("/run/systemd/system") + if err != nil { + return false + } + return fi.IsDir() +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/LICENSE new file mode 100644 index 0000000..c7a3f0c --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/LICENSE @@ -0,0 +1,191 @@ + + Apache License + Version 2.0, January 2004 + https://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. 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In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. 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Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the + library `Frob' (a library for tweaking knobs) written by James Random Hacker. + + , 1 April 1990 + Ty Coon, President of Vice + +That's all there is to it! diff --git a/Godeps/_workspace/src/github.com/docker/docker/contrib/syntax/vim/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/contrib/syntax/vim/LICENSE new file mode 100644 index 0000000..e67cdab --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/contrib/syntax/vim/LICENSE @@ -0,0 +1,22 @@ +Copyright (c) 2013 Honza Pokorny +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR +ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/longpath/longpath.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/longpath/longpath.go new file mode 100644 index 0000000..9b15bff --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/longpath/longpath.go @@ -0,0 +1,26 @@ +// longpath introduces some constants and helper functions for handling long paths +// in Windows, which are expected to be prepended with `\\?\` and followed by either +// a drive letter, a UNC server\share, or a volume identifier. + +package longpath + +import ( + "strings" +) + +// Prefix is the longpath prefix for Windows file paths. +const Prefix = `\\?\` + +// AddPrefix will add the Windows long path prefix to the path provided if +// it does not already have it. +func AddPrefix(path string) string { + if !strings.HasPrefix(path, Prefix) { + if strings.HasPrefix(path, `\\`) { + // This is a UNC path, so we need to add 'UNC' to the path as well. + path = Prefix + `UNC` + path[1:] + } else { + path = Prefix + path + } + } + return path +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/mflag/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/pkg/mflag/LICENSE new file mode 100644 index 0000000..ac74d8f --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/mflag/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2014-2015 The Docker & Go Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/flags.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/flags.go new file mode 100644 index 0000000..17dbd7a --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/flags.go @@ -0,0 +1,69 @@ +package mount + +import ( + "strings" +) + +// Parse fstab type mount options into mount() flags +// and device specific data +func parseOptions(options string) (int, string) { + var ( + flag int + data []string + ) + + flags := map[string]struct { + clear bool + flag int + }{ + "defaults": {false, 0}, + "ro": {false, RDONLY}, + "rw": {true, RDONLY}, + "suid": {true, NOSUID}, + "nosuid": {false, NOSUID}, + "dev": {true, NODEV}, + "nodev": {false, NODEV}, + "exec": {true, NOEXEC}, + "noexec": {false, NOEXEC}, + "sync": {false, SYNCHRONOUS}, + "async": {true, SYNCHRONOUS}, + "dirsync": {false, DIRSYNC}, + "remount": {false, REMOUNT}, + "mand": {false, MANDLOCK}, + "nomand": {true, MANDLOCK}, + "atime": {true, NOATIME}, + "noatime": {false, NOATIME}, + "diratime": {true, NODIRATIME}, + "nodiratime": {false, NODIRATIME}, + "bind": {false, BIND}, + "rbind": {false, RBIND}, + "unbindable": {false, UNBINDABLE}, + "runbindable": {false, RUNBINDABLE}, + "private": {false, PRIVATE}, + "rprivate": {false, RPRIVATE}, + "shared": {false, SHARED}, + "rshared": {false, RSHARED}, + "slave": {false, SLAVE}, + "rslave": {false, RSLAVE}, + "relatime": {false, RELATIME}, + "norelatime": {true, RELATIME}, + "strictatime": {false, STRICTATIME}, + "nostrictatime": {true, STRICTATIME}, + } + + for _, o := range strings.Split(options, ",") { + // If the option does not exist in the flags table or the flag + // is not supported on the platform, + // then it is a data value for a specific fs type + if f, exists := flags[o]; exists && f.flag != 0 { + if f.clear { + flag &= ^f.flag + } else { + flag |= f.flag + } + } else { + data = append(data, o) + } + } + return flag, strings.Join(data, ",") +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/flags_freebsd.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/flags_freebsd.go new file mode 100644 index 0000000..f166cb2 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/flags_freebsd.go @@ -0,0 +1,48 @@ +// +build freebsd,cgo + +package mount + +/* +#include +*/ +import "C" + +const ( + // RDONLY will mount the filesystem as read-only. + RDONLY = C.MNT_RDONLY + + // NOSUID will not allow set-user-identifier or set-group-identifier bits to + // take effect. + NOSUID = C.MNT_NOSUID + + // NOEXEC will not allow execution of any binaries on the mounted file system. + NOEXEC = C.MNT_NOEXEC + + // SYNCHRONOUS will allow any I/O to the file system to be done synchronously. + SYNCHRONOUS = C.MNT_SYNCHRONOUS + + // NOATIME will not update the file access time when reading from a file. + NOATIME = C.MNT_NOATIME +) + +// These flags are unsupported. +const ( + BIND = 0 + DIRSYNC = 0 + MANDLOCK = 0 + NODEV = 0 + NODIRATIME = 0 + UNBINDABLE = 0 + RUNBINDABLE = 0 + PRIVATE = 0 + RPRIVATE = 0 + SHARED = 0 + RSHARED = 0 + SLAVE = 0 + RSLAVE = 0 + RBIND = 0 + RELATIVE = 0 + RELATIME = 0 + REMOUNT = 0 + STRICTATIME = 0 +) diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/flags_linux.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/flags_linux.go new file mode 100644 index 0000000..2f9f5c5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/flags_linux.go @@ -0,0 +1,85 @@ +package mount + +import ( + "syscall" +) + +const ( + // RDONLY will mount the file system read-only. + RDONLY = syscall.MS_RDONLY + + // NOSUID will not allow set-user-identifier or set-group-identifier bits to + // take effect. + NOSUID = syscall.MS_NOSUID + + // NODEV will not interpret character or block special devices on the file + // system. + NODEV = syscall.MS_NODEV + + // NOEXEC will not allow execution of any binaries on the mounted file system. + NOEXEC = syscall.MS_NOEXEC + + // SYNCHRONOUS will allow I/O to the file system to be done synchronously. + SYNCHRONOUS = syscall.MS_SYNCHRONOUS + + // DIRSYNC will force all directory updates within the file system to be done + // synchronously. This affects the following system calls: creat, link, + // unlink, symlink, mkdir, rmdir, mknod and rename. + DIRSYNC = syscall.MS_DIRSYNC + + // REMOUNT will attempt to remount an already-mounted file system. This is + // commonly used to change the mount flags for a file system, especially to + // make a readonly file system writeable. It does not change device or mount + // point. + REMOUNT = syscall.MS_REMOUNT + + // MANDLOCK will force mandatory locks on a filesystem. + MANDLOCK = syscall.MS_MANDLOCK + + // NOATIME will not update the file access time when reading from a file. + NOATIME = syscall.MS_NOATIME + + // NODIRATIME will not update the directory access time. + NODIRATIME = syscall.MS_NODIRATIME + + // BIND remounts a subtree somewhere else. + BIND = syscall.MS_BIND + + // RBIND remounts a subtree and all possible submounts somewhere else. + RBIND = syscall.MS_BIND | syscall.MS_REC + + // UNBINDABLE creates a mount which cannot be cloned through a bind operation. + UNBINDABLE = syscall.MS_UNBINDABLE + + // RUNBINDABLE marks the entire mount tree as UNBINDABLE. + RUNBINDABLE = syscall.MS_UNBINDABLE | syscall.MS_REC + + // PRIVATE creates a mount which carries no propagation abilities. + PRIVATE = syscall.MS_PRIVATE + + // RPRIVATE marks the entire mount tree as PRIVATE. + RPRIVATE = syscall.MS_PRIVATE | syscall.MS_REC + + // SLAVE creates a mount which receives propagation from its master, but not + // vice versa. + SLAVE = syscall.MS_SLAVE + + // RSLAVE marks the entire mount tree as SLAVE. + RSLAVE = syscall.MS_SLAVE | syscall.MS_REC + + // SHARED creates a mount which provides the ability to create mirrors of + // that mount such that mounts and unmounts within any of the mirrors + // propagate to the other mirrors. + SHARED = syscall.MS_SHARED + + // RSHARED marks the entire mount tree as SHARED. + RSHARED = syscall.MS_SHARED | syscall.MS_REC + + // RELATIME updates inode access times relative to modify or change time. + RELATIME = syscall.MS_RELATIME + + // STRICTATIME allows to explicitly request full atime updates. This makes + // it possible for the kernel to default to relatime or noatime but still + // allow userspace to override it. + STRICTATIME = syscall.MS_STRICTATIME +) diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/flags_unsupported.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/flags_unsupported.go new file mode 100644 index 0000000..a90d3d1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/flags_unsupported.go @@ -0,0 +1,30 @@ +// +build !linux,!freebsd freebsd,!cgo + +package mount + +// These flags are unsupported. +const ( + BIND = 0 + DIRSYNC = 0 + MANDLOCK = 0 + NOATIME = 0 + NODEV = 0 + NODIRATIME = 0 + NOEXEC = 0 + NOSUID = 0 + UNBINDABLE = 0 + RUNBINDABLE = 0 + PRIVATE = 0 + RPRIVATE = 0 + SHARED = 0 + RSHARED = 0 + SLAVE = 0 + RSLAVE = 0 + RBIND = 0 + RELATIME = 0 + RELATIVE = 0 + REMOUNT = 0 + STRICTATIME = 0 + SYNCHRONOUS = 0 + RDONLY = 0 +) diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mount.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mount.go new file mode 100644 index 0000000..ed7216e --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mount.go @@ -0,0 +1,74 @@ +package mount + +import ( + "time" +) + +// GetMounts retrieves a list of mounts for the current running process. +func GetMounts() ([]*Info, error) { + return parseMountTable() +} + +// Mounted looks at /proc/self/mountinfo to determine of the specified +// mountpoint has been mounted +func Mounted(mountpoint string) (bool, error) { + entries, err := parseMountTable() + if err != nil { + return false, err + } + + // Search the table for the mountpoint + for _, e := range entries { + if e.Mountpoint == mountpoint { + return true, nil + } + } + return false, nil +} + +// Mount will mount filesystem according to the specified configuration, on the +// condition that the target path is *not* already mounted. Options must be +// specified like the mount or fstab unix commands: "opt1=val1,opt2=val2". See +// flags.go for supported option flags. +func Mount(device, target, mType, options string) error { + flag, _ := parseOptions(options) + if flag&REMOUNT != REMOUNT { + if mounted, err := Mounted(target); err != nil || mounted { + return err + } + } + return ForceMount(device, target, mType, options) +} + +// ForceMount will mount a filesystem according to the specified configuration, +// *regardless* if the target path is not already mounted. Options must be +// specified like the mount or fstab unix commands: "opt1=val1,opt2=val2". See +// flags.go for supported option flags. +func ForceMount(device, target, mType, options string) error { + flag, data := parseOptions(options) + if err := mount(device, target, mType, uintptr(flag), data); err != nil { + return err + } + return nil +} + +// Unmount will unmount the target filesystem, so long as it is mounted. +func Unmount(target string) error { + if mounted, err := Mounted(target); err != nil || !mounted { + return err + } + return ForceUnmount(target) +} + +// ForceUnmount will force an unmount of the target filesystem, regardless if +// it is mounted or not. +func ForceUnmount(target string) (err error) { + // Simple retry logic for unmount + for i := 0; i < 10; i++ { + if err = unmount(target, 0); err == nil { + return nil + } + time.Sleep(100 * time.Millisecond) + } + return +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mounter_freebsd.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mounter_freebsd.go new file mode 100644 index 0000000..bb870e6 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mounter_freebsd.go @@ -0,0 +1,59 @@ +package mount + +/* +#include +#include +#include +#include +#include +#include +*/ +import "C" + +import ( + "fmt" + "strings" + "syscall" + "unsafe" +) + +func allocateIOVecs(options []string) []C.struct_iovec { + out := make([]C.struct_iovec, len(options)) + for i, option := range options { + out[i].iov_base = unsafe.Pointer(C.CString(option)) + out[i].iov_len = C.size_t(len(option) + 1) + } + return out +} + +func mount(device, target, mType string, flag uintptr, data string) error { + isNullFS := false + + xs := strings.Split(data, ",") + for _, x := range xs { + if x == "bind" { + isNullFS = true + } + } + + options := []string{"fspath", target} + if isNullFS { + options = append(options, "fstype", "nullfs", "target", device) + } else { + options = append(options, "fstype", mType, "from", device) + } + rawOptions := allocateIOVecs(options) + for _, rawOption := range rawOptions { + defer C.free(rawOption.iov_base) + } + + if errno := C.nmount(&rawOptions[0], C.uint(len(options)), C.int(flag)); errno != 0 { + reason := C.GoString(C.strerror(*C.__error())) + return fmt.Errorf("Failed to call nmount: %s", reason) + } + return nil +} + +func unmount(target string, flag int) error { + return syscall.Unmount(target, flag) +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mounter_linux.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mounter_linux.go new file mode 100644 index 0000000..dd4280c --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mounter_linux.go @@ -0,0 +1,21 @@ +package mount + +import ( + "syscall" +) + +func mount(device, target, mType string, flag uintptr, data string) error { + if err := syscall.Mount(device, target, mType, flag, data); err != nil { + return err + } + + // If we have a bind mount or remount, remount... + if flag&syscall.MS_BIND == syscall.MS_BIND && flag&syscall.MS_RDONLY == syscall.MS_RDONLY { + return syscall.Mount(device, target, mType, flag|syscall.MS_REMOUNT, data) + } + return nil +} + +func unmount(target string, flag int) error { + return syscall.Unmount(target, flag) +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mounter_unsupported.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mounter_unsupported.go new file mode 100644 index 0000000..eb93365 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mounter_unsupported.go @@ -0,0 +1,11 @@ +// +build !linux,!freebsd freebsd,!cgo + +package mount + +func mount(device, target, mType string, flag uintptr, data string) error { + panic("Not implemented") +} + +func unmount(target string, flag int) error { + panic("Not implemented") +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mountinfo.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mountinfo.go new file mode 100644 index 0000000..e3fc353 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mountinfo.go @@ -0,0 +1,40 @@ +package mount + +// Info reveals information about a particular mounted filesystem. This +// struct is populated from the content in the /proc//mountinfo file. +type Info struct { + // ID is a unique identifier of the mount (may be reused after umount). + ID int + + // Parent indicates the ID of the mount parent (or of self for the top of the + // mount tree). + Parent int + + // Major indicates one half of the device ID which identifies the device class. + Major int + + // Minor indicates one half of the device ID which identifies a specific + // instance of device. + Minor int + + // Root of the mount within the filesystem. + Root string + + // Mountpoint indicates the mount point relative to the process's root. + Mountpoint string + + // Opts represents mount-specific options. + Opts string + + // Optional represents optional fields. + Optional string + + // Fstype indicates the type of filesystem, such as EXT3. + Fstype string + + // Source indicates filesystem specific information or "none". + Source string + + // VfsOpts represents per super block options. + VfsOpts string +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mountinfo_freebsd.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mountinfo_freebsd.go new file mode 100644 index 0000000..4f32edc --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mountinfo_freebsd.go @@ -0,0 +1,41 @@ +package mount + +/* +#include +#include +#include +*/ +import "C" + +import ( + "fmt" + "reflect" + "unsafe" +) + +// Parse /proc/self/mountinfo because comparing Dev and ino does not work from +// bind mounts. +func parseMountTable() ([]*Info, error) { + var rawEntries *C.struct_statfs + + count := int(C.getmntinfo(&rawEntries, C.MNT_WAIT)) + if count == 0 { + return nil, fmt.Errorf("Failed to call getmntinfo") + } + + var entries []C.struct_statfs + header := (*reflect.SliceHeader)(unsafe.Pointer(&entries)) + header.Cap = count + header.Len = count + header.Data = uintptr(unsafe.Pointer(rawEntries)) + + var out []*Info + for _, entry := range entries { + var mountinfo Info + mountinfo.Mountpoint = C.GoString(&entry.f_mntonname[0]) + mountinfo.Source = C.GoString(&entry.f_mntfromname[0]) + mountinfo.Fstype = C.GoString(&entry.f_fstypename[0]) + out = append(out, &mountinfo) + } + return out, nil +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mountinfo_linux.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mountinfo_linux.go new file mode 100644 index 0000000..be69fee --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mountinfo_linux.go @@ -0,0 +1,95 @@ +// +build linux + +package mount + +import ( + "bufio" + "fmt" + "io" + "os" + "strings" +) + +const ( + /* 36 35 98:0 /mnt1 /mnt2 rw,noatime master:1 - ext3 /dev/root rw,errors=continue + (1)(2)(3) (4) (5) (6) (7) (8) (9) (10) (11) + + (1) mount ID: unique identifier of the mount (may be reused after umount) + (2) parent ID: ID of parent (or of self for the top of the mount tree) + (3) major:minor: value of st_dev for files on filesystem + (4) root: root of the mount within the filesystem + (5) mount point: mount point relative to the process's root + (6) mount options: per mount options + (7) optional fields: zero or more fields of the form "tag[:value]" + (8) separator: marks the end of the optional fields + (9) filesystem type: name of filesystem of the form "type[.subtype]" + (10) mount source: filesystem specific information or "none" + (11) super options: per super block options*/ + mountinfoFormat = "%d %d %d:%d %s %s %s %s" +) + +// Parse /proc/self/mountinfo because comparing Dev and ino does not work from +// bind mounts +func parseMountTable() ([]*Info, error) { + f, err := os.Open("/proc/self/mountinfo") + if err != nil { + return nil, err + } + defer f.Close() + + return parseInfoFile(f) +} + +func parseInfoFile(r io.Reader) ([]*Info, error) { + var ( + s = bufio.NewScanner(r) + out = []*Info{} + ) + + for s.Scan() { + if err := s.Err(); err != nil { + return nil, err + } + + var ( + p = &Info{} + text = s.Text() + optionalFields string + ) + + if _, err := fmt.Sscanf(text, mountinfoFormat, + &p.ID, &p.Parent, &p.Major, &p.Minor, + &p.Root, &p.Mountpoint, &p.Opts, &optionalFields); err != nil { + return nil, fmt.Errorf("Scanning '%s' failed: %s", text, err) + } + // Safe as mountinfo encodes mountpoints with spaces as \040. + index := strings.Index(text, " - ") + postSeparatorFields := strings.Fields(text[index+3:]) + if len(postSeparatorFields) < 3 { + return nil, fmt.Errorf("Error found less than 3 fields post '-' in %q", text) + } + + if optionalFields != "-" { + p.Optional = optionalFields + } + + p.Fstype = postSeparatorFields[0] + p.Source = postSeparatorFields[1] + p.VfsOpts = strings.Join(postSeparatorFields[2:], " ") + out = append(out, p) + } + return out, nil +} + +// PidMountInfo collects the mounts for a specific process ID. If the process +// ID is unknown, it is better to use `GetMounts` which will inspect +// "/proc/self/mountinfo" instead. +func PidMountInfo(pid int) ([]*Info, error) { + f, err := os.Open(fmt.Sprintf("/proc/%d/mountinfo", pid)) + if err != nil { + return nil, err + } + defer f.Close() + + return parseInfoFile(f) +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mountinfo_unsupported.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mountinfo_unsupported.go new file mode 100644 index 0000000..8245f01 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/mountinfo_unsupported.go @@ -0,0 +1,12 @@ +// +build !linux,!freebsd freebsd,!cgo + +package mount + +import ( + "fmt" + "runtime" +) + +func parseMountTable() ([]*Info, error) { + return nil, fmt.Errorf("mount.parseMountTable is not implemented on %s/%s", runtime.GOOS, runtime.GOARCH) +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/sharedsubtree_linux.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/sharedsubtree_linux.go new file mode 100644 index 0000000..47303bb --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/mount/sharedsubtree_linux.go @@ -0,0 +1,70 @@ +// +build linux + +package mount + +// MakeShared ensures a mounted filesystem has the SHARED mount option enabled. +// See the supported options in flags.go for further reference. +func MakeShared(mountPoint string) error { + return ensureMountedAs(mountPoint, "shared") +} + +// MakeRShared ensures a mounted filesystem has the RSHARED mount option enabled. +// See the supported options in flags.go for further reference. +func MakeRShared(mountPoint string) error { + return ensureMountedAs(mountPoint, "rshared") +} + +// MakePrivate ensures a mounted filesystem has the PRIVATE mount option enabled. +// See the supported options in flags.go for further reference. +func MakePrivate(mountPoint string) error { + return ensureMountedAs(mountPoint, "private") +} + +// MakeRPrivate ensures a mounted filesystem has the RPRIVATE mount option +// enabled. See the supported options in flags.go for further reference. +func MakeRPrivate(mountPoint string) error { + return ensureMountedAs(mountPoint, "rprivate") +} + +// MakeSlave ensures a mounted filesystem has the SLAVE mount option enabled. +// See the supported options in flags.go for further reference. +func MakeSlave(mountPoint string) error { + return ensureMountedAs(mountPoint, "slave") +} + +// MakeRSlave ensures a mounted filesystem has the RSLAVE mount option enabled. +// See the supported options in flags.go for further reference. +func MakeRSlave(mountPoint string) error { + return ensureMountedAs(mountPoint, "rslave") +} + +// MakeUnbindable ensures a mounted filesystem has the UNBINDABLE mount option +// enabled. See the supported options in flags.go for further reference. +func MakeUnbindable(mountPoint string) error { + return ensureMountedAs(mountPoint, "unbindable") +} + +// MakeRUnbindable ensures a mounted filesystem has the RUNBINDABLE mount +// option enabled. See the supported options in flags.go for further reference. +func MakeRUnbindable(mountPoint string) error { + return ensureMountedAs(mountPoint, "runbindable") +} + +func ensureMountedAs(mountPoint, options string) error { + mounted, err := Mounted(mountPoint) + if err != nil { + return err + } + + if !mounted { + if err := Mount(mountPoint, mountPoint, "none", "bind,rw"); err != nil { + return err + } + } + mounted, err = Mounted(mountPoint) + if err != nil { + return err + } + + return ForceMount("", mountPoint, "none", options) +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/LICENSE.APACHE b/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/LICENSE.APACHE new file mode 100644 index 0000000..9e4bd4d --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/LICENSE.APACHE @@ -0,0 +1,191 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. 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If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + Copyright 2014-2015 Docker, Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/LICENSE.BSD b/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/LICENSE.BSD new file mode 100644 index 0000000..ac74d8f --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/LICENSE.BSD @@ -0,0 +1,27 @@ +Copyright (c) 2014-2015 The Docker & Go Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/README.md b/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/README.md new file mode 100644 index 0000000..8dba54f --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/README.md @@ -0,0 +1,6 @@ +Package symlink implements EvalSymlinksInScope which is an extension of filepath.EvalSymlinks, +as well as a Windows long-path aware version of filepath.EvalSymlinks +from the [Go standard library](https://golang.org/pkg/path/filepath). + +The code from filepath.EvalSymlinks has been adapted in fs.go. +Please read the LICENSE.BSD file that governs fs.go and LICENSE.APACHE for fs_test.go. diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/fs.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/fs.go new file mode 100644 index 0000000..dcf707f --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/fs.go @@ -0,0 +1,143 @@ +// Copyright 2012 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE.BSD file. + +// This code is a modified version of path/filepath/symlink.go from the Go standard library. + +package symlink + +import ( + "bytes" + "errors" + "os" + "path/filepath" + "strings" + + "github.com/docker/docker/pkg/system" +) + +// FollowSymlinkInScope is a wrapper around evalSymlinksInScope that returns an +// absolute path. This function handles paths in a platform-agnostic manner. +func FollowSymlinkInScope(path, root string) (string, error) { + path, err := filepath.Abs(filepath.FromSlash(path)) + if err != nil { + return "", err + } + root, err = filepath.Abs(filepath.FromSlash(root)) + if err != nil { + return "", err + } + return evalSymlinksInScope(path, root) +} + +// evalSymlinksInScope will evaluate symlinks in `path` within a scope `root` and return +// a result guaranteed to be contained within the scope `root`, at the time of the call. +// Symlinks in `root` are not evaluated and left as-is. +// Errors encountered while attempting to evaluate symlinks in path will be returned. +// Non-existing paths are valid and do not constitute an error. +// `path` has to contain `root` as a prefix, or else an error will be returned. +// Trying to break out from `root` does not constitute an error. +// +// Example: +// If /foo/bar -> /outside, +// FollowSymlinkInScope("/foo/bar", "/foo") == "/foo/outside" instead of "/oustide" +// +// IMPORTANT: it is the caller's responsibility to call evalSymlinksInScope *after* relevant symlinks +// are created and not to create subsequently, additional symlinks that could potentially make a +// previously-safe path, unsafe. Example: if /foo/bar does not exist, evalSymlinksInScope("/foo/bar", "/foo") +// would return "/foo/bar". If one makes /foo/bar a symlink to /baz subsequently, then "/foo/bar" should +// no longer be considered safely contained in "/foo". +func evalSymlinksInScope(path, root string) (string, error) { + root = filepath.Clean(root) + if path == root { + return path, nil + } + if !strings.HasPrefix(path, root) { + return "", errors.New("evalSymlinksInScope: " + path + " is not in " + root) + } + const maxIter = 255 + originalPath := path + // given root of "/a" and path of "/a/b/../../c" we want path to be "/b/../../c" + path = path[len(root):] + if root == string(filepath.Separator) { + path = string(filepath.Separator) + path + } + if !strings.HasPrefix(path, string(filepath.Separator)) { + return "", errors.New("evalSymlinksInScope: " + path + " is not in " + root) + } + path = filepath.Clean(path) + // consume path by taking each frontmost path element, + // expanding it if it's a symlink, and appending it to b + var b bytes.Buffer + // b here will always be considered to be the "current absolute path inside + // root" when we append paths to it, we also append a slash and use + // filepath.Clean after the loop to trim the trailing slash + for n := 0; path != ""; n++ { + if n > maxIter { + return "", errors.New("evalSymlinksInScope: too many links in " + originalPath) + } + + // find next path component, p + i := strings.IndexRune(path, filepath.Separator) + var p string + if i == -1 { + p, path = path, "" + } else { + p, path = path[:i], path[i+1:] + } + + if p == "" { + continue + } + + // this takes a b.String() like "b/../" and a p like "c" and turns it + // into "/b/../c" which then gets filepath.Cleaned into "/c" and then + // root gets prepended and we Clean again (to remove any trailing slash + // if the first Clean gave us just "/") + cleanP := filepath.Clean(string(filepath.Separator) + b.String() + p) + if cleanP == string(filepath.Separator) { + // never Lstat "/" itself + b.Reset() + continue + } + fullP := filepath.Clean(root + cleanP) + + fi, err := os.Lstat(fullP) + if os.IsNotExist(err) { + // if p does not exist, accept it + b.WriteString(p) + b.WriteRune(filepath.Separator) + continue + } + if err != nil { + return "", err + } + if fi.Mode()&os.ModeSymlink == 0 { + b.WriteString(p + string(filepath.Separator)) + continue + } + + // it's a symlink, put it at the front of path + dest, err := os.Readlink(fullP) + if err != nil { + return "", err + } + if system.IsAbs(dest) { + b.Reset() + } + path = dest + string(filepath.Separator) + path + } + + // see note above on "fullP := ..." for why this is double-cleaned and + // what's happening here + return filepath.Clean(root + filepath.Clean(string(filepath.Separator)+b.String())), nil +} + +// EvalSymlinks returns the path name after the evaluation of any symbolic +// links. +// If path is relative the result will be relative to the current directory, +// unless one of the components is an absolute symbolic link. +// This version has been updated to support long paths prepended with `\\?\`. +func EvalSymlinks(path string) (string, error) { + return evalSymlinks(path) +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/fs_unix.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/fs_unix.go new file mode 100644 index 0000000..818004f --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/fs_unix.go @@ -0,0 +1,11 @@ +// +build !windows + +package symlink + +import ( + "path/filepath" +) + +func evalSymlinks(path string) (string, error) { + return filepath.EvalSymlinks(path) +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/fs_windows.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/fs_windows.go new file mode 100644 index 0000000..29bd456 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/symlink/fs_windows.go @@ -0,0 +1,156 @@ +package symlink + +import ( + "bytes" + "errors" + "os" + "path/filepath" + "strings" + "syscall" + + "github.com/docker/docker/pkg/longpath" +) + +func toShort(path string) (string, error) { + p, err := syscall.UTF16FromString(path) + if err != nil { + return "", err + } + b := p // GetShortPathName says we can reuse buffer + n, err := syscall.GetShortPathName(&p[0], &b[0], uint32(len(b))) + if err != nil { + return "", err + } + if n > uint32(len(b)) { + b = make([]uint16, n) + n, err = syscall.GetShortPathName(&p[0], &b[0], uint32(len(b))) + if err != nil { + return "", err + } + } + return syscall.UTF16ToString(b), nil +} + +func toLong(path string) (string, error) { + p, err := syscall.UTF16FromString(path) + if err != nil { + return "", err + } + b := p // GetLongPathName says we can reuse buffer + n, err := syscall.GetLongPathName(&p[0], &b[0], uint32(len(b))) + if err != nil { + return "", err + } + if n > uint32(len(b)) { + b = make([]uint16, n) + n, err = syscall.GetLongPathName(&p[0], &b[0], uint32(len(b))) + if err != nil { + return "", err + } + } + b = b[:n] + return syscall.UTF16ToString(b), nil +} + +func evalSymlinks(path string) (string, error) { + path, err := walkSymlinks(path) + if err != nil { + return "", err + } + + p, err := toShort(path) + if err != nil { + return "", err + } + p, err = toLong(p) + if err != nil { + return "", err + } + // syscall.GetLongPathName does not change the case of the drive letter, + // but the result of EvalSymlinks must be unique, so we have + // EvalSymlinks(`c:\a`) == EvalSymlinks(`C:\a`). + // Make drive letter upper case. + if len(p) >= 2 && p[1] == ':' && 'a' <= p[0] && p[0] <= 'z' { + p = string(p[0]+'A'-'a') + p[1:] + } else if len(p) >= 6 && p[5] == ':' && 'a' <= p[4] && p[4] <= 'z' { + p = p[:3] + string(p[4]+'A'-'a') + p[5:] + } + return filepath.Clean(p), nil +} + +const utf8RuneSelf = 0x80 + +func walkSymlinks(path string) (string, error) { + const maxIter = 255 + originalPath := path + // consume path by taking each frontmost path element, + // expanding it if it's a symlink, and appending it to b + var b bytes.Buffer + for n := 0; path != ""; n++ { + if n > maxIter { + return "", errors.New("EvalSymlinks: too many links in " + originalPath) + } + + // A path beginnging with `\\?\` represents the root, so automatically + // skip that part and begin processing the next segment. + if strings.HasPrefix(path, longpath.Prefix) { + b.WriteString(longpath.Prefix) + path = path[4:] + continue + } + + // find next path component, p + var i = -1 + for j, c := range path { + if c < utf8RuneSelf && os.IsPathSeparator(uint8(c)) { + i = j + break + } + } + var p string + if i == -1 { + p, path = path, "" + } else { + p, path = path[:i], path[i+1:] + } + + if p == "" { + if b.Len() == 0 { + // must be absolute path + b.WriteRune(filepath.Separator) + } + continue + } + + // If this is the first segment after the long path prefix, accept the + // current segment as a volume root or UNC share and move on to the next. + if b.String() == longpath.Prefix { + b.WriteString(p) + b.WriteRune(filepath.Separator) + continue + } + + fi, err := os.Lstat(b.String() + p) + if err != nil { + return "", err + } + if fi.Mode()&os.ModeSymlink == 0 { + b.WriteString(p) + if path != "" || (b.Len() == 2 && len(p) == 2 && p[1] == ':') { + b.WriteRune(filepath.Separator) + } + continue + } + + // it's a symlink, put it at the front of path + dest, err := os.Readlink(b.String() + p) + if err != nil { + return "", err + } + if filepath.IsAbs(dest) || os.IsPathSeparator(dest[0]) { + b.Reset() + } + path = dest + string(filepath.Separator) + path + } + return filepath.Clean(b.String()), nil +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/chtimes.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/chtimes.go new file mode 100644 index 0000000..31ed9ff --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/chtimes.go @@ -0,0 +1,31 @@ +package system + +import ( + "os" + "time" +) + +// Chtimes changes the access time and modified time of a file at the given path +func Chtimes(name string, atime time.Time, mtime time.Time) error { + unixMinTime := time.Unix(0, 0) + // The max Unix time is 33 bits set + unixMaxTime := unixMinTime.Add((1<<33 - 1) * time.Second) + + // If the modified time is prior to the Unix Epoch, or after the + // end of Unix Time, os.Chtimes has undefined behavior + // default to Unix Epoch in this case, just in case + + if atime.Before(unixMinTime) || atime.After(unixMaxTime) { + atime = unixMinTime + } + + if mtime.Before(unixMinTime) || mtime.After(unixMaxTime) { + mtime = unixMinTime + } + + if err := os.Chtimes(name, atime, mtime); err != nil { + return err + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/errors.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/errors.go new file mode 100644 index 0000000..2883189 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/errors.go @@ -0,0 +1,10 @@ +package system + +import ( + "errors" +) + +var ( + // ErrNotSupportedPlatform means the platform is not supported. + ErrNotSupportedPlatform = errors.New("platform and architecture is not supported") +) diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/events_windows.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/events_windows.go new file mode 100644 index 0000000..04e2de7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/events_windows.go @@ -0,0 +1,83 @@ +package system + +// This file implements syscalls for Win32 events which are not implemented +// in golang. + +import ( + "syscall" + "unsafe" +) + +var ( + procCreateEvent = modkernel32.NewProc("CreateEventW") + procOpenEvent = modkernel32.NewProc("OpenEventW") + procSetEvent = modkernel32.NewProc("SetEvent") + procResetEvent = modkernel32.NewProc("ResetEvent") + procPulseEvent = modkernel32.NewProc("PulseEvent") +) + +// CreateEvent implements win32 CreateEventW func in golang. It will create an event object. +func CreateEvent(eventAttributes *syscall.SecurityAttributes, manualReset bool, initialState bool, name string) (handle syscall.Handle, err error) { + namep, _ := syscall.UTF16PtrFromString(name) + var _p1 uint32 + if manualReset { + _p1 = 1 + } + var _p2 uint32 + if initialState { + _p2 = 1 + } + r0, _, e1 := procCreateEvent.Call(uintptr(unsafe.Pointer(eventAttributes)), uintptr(_p1), uintptr(_p2), uintptr(unsafe.Pointer(namep))) + use(unsafe.Pointer(namep)) + handle = syscall.Handle(r0) + if handle == syscall.InvalidHandle { + err = e1 + } + return +} + +// OpenEvent implements win32 OpenEventW func in golang. It opens an event object. +func OpenEvent(desiredAccess uint32, inheritHandle bool, name string) (handle syscall.Handle, err error) { + namep, _ := syscall.UTF16PtrFromString(name) + var _p1 uint32 + if inheritHandle { + _p1 = 1 + } + r0, _, e1 := procOpenEvent.Call(uintptr(desiredAccess), uintptr(_p1), uintptr(unsafe.Pointer(namep))) + use(unsafe.Pointer(namep)) + handle = syscall.Handle(r0) + if handle == syscall.InvalidHandle { + err = e1 + } + return +} + +// SetEvent implements win32 SetEvent func in golang. +func SetEvent(handle syscall.Handle) (err error) { + return setResetPulse(handle, procSetEvent) +} + +// ResetEvent implements win32 ResetEvent func in golang. +func ResetEvent(handle syscall.Handle) (err error) { + return setResetPulse(handle, procResetEvent) +} + +// PulseEvent implements win32 PulseEvent func in golang. +func PulseEvent(handle syscall.Handle) (err error) { + return setResetPulse(handle, procPulseEvent) +} + +func setResetPulse(handle syscall.Handle, proc *syscall.LazyProc) (err error) { + r0, _, _ := proc.Call(uintptr(handle)) + if r0 != 0 { + err = syscall.Errno(r0) + } + return +} + +var temp unsafe.Pointer + +// use ensures a variable is kept alive without the GC freeing while still needed +func use(p unsafe.Pointer) { + temp = p +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/filesys.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/filesys.go new file mode 100644 index 0000000..c14feb8 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/filesys.go @@ -0,0 +1,19 @@ +// +build !windows + +package system + +import ( + "os" + "path/filepath" +) + +// MkdirAll creates a directory named path along with any necessary parents, +// with permission specified by attribute perm for all dir created. +func MkdirAll(path string, perm os.FileMode) error { + return os.MkdirAll(path, perm) +} + +// IsAbs is a platform-specific wrapper for filepath.IsAbs. +func IsAbs(path string) bool { + return filepath.IsAbs(path) +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/filesys_windows.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/filesys_windows.go new file mode 100644 index 0000000..16823d5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/filesys_windows.go @@ -0,0 +1,82 @@ +// +build windows + +package system + +import ( + "os" + "path/filepath" + "regexp" + "strings" + "syscall" +) + +// MkdirAll implementation that is volume path aware for Windows. +func MkdirAll(path string, perm os.FileMode) error { + if re := regexp.MustCompile(`^\\\\\?\\Volume{[a-z0-9-]+}$`); re.MatchString(path) { + return nil + } + + // The rest of this method is copied from os.MkdirAll and should be kept + // as-is to ensure compatibility. + + // Fast path: if we can tell whether path is a directory or file, stop with success or error. + dir, err := os.Stat(path) + if err == nil { + if dir.IsDir() { + return nil + } + return &os.PathError{ + Op: "mkdir", + Path: path, + Err: syscall.ENOTDIR, + } + } + + // Slow path: make sure parent exists and then call Mkdir for path. + i := len(path) + for i > 0 && os.IsPathSeparator(path[i-1]) { // Skip trailing path separator. + i-- + } + + j := i + for j > 0 && !os.IsPathSeparator(path[j-1]) { // Scan backward over element. + j-- + } + + if j > 1 { + // Create parent + err = MkdirAll(path[0:j-1], perm) + if err != nil { + return err + } + } + + // Parent now exists; invoke Mkdir and use its result. + err = os.Mkdir(path, perm) + if err != nil { + // Handle arguments like "foo/." by + // double-checking that directory doesn't exist. + dir, err1 := os.Lstat(path) + if err1 == nil && dir.IsDir() { + return nil + } + return err + } + return nil +} + +// IsAbs is a platform-specific wrapper for filepath.IsAbs. On Windows, +// golang filepath.IsAbs does not consider a path \windows\system32 as absolute +// as it doesn't start with a drive-letter/colon combination. However, in +// docker we need to verify things such as WORKDIR /windows/system32 in +// a Dockerfile (which gets translated to \windows\system32 when being processed +// by the daemon. This SHOULD be treated as absolute from a docker processing +// perspective. +func IsAbs(path string) bool { + if !filepath.IsAbs(path) { + if !strings.HasPrefix(path, string(os.PathSeparator)) { + return false + } + } + return true +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/lstat.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/lstat.go new file mode 100644 index 0000000..bd23c4d --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/lstat.go @@ -0,0 +1,19 @@ +// +build !windows + +package system + +import ( + "syscall" +) + +// Lstat takes a path to a file and returns +// a system.StatT type pertaining to that file. +// +// Throws an error if the file does not exist +func Lstat(path string) (*StatT, error) { + s := &syscall.Stat_t{} + if err := syscall.Lstat(path, s); err != nil { + return nil, err + } + return fromStatT(s) +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/lstat_windows.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/lstat_windows.go new file mode 100644 index 0000000..49e87eb --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/lstat_windows.go @@ -0,0 +1,25 @@ +// +build windows + +package system + +import ( + "os" +) + +// Lstat calls os.Lstat to get a fileinfo interface back. +// This is then copied into our own locally defined structure. +// Note the Linux version uses fromStatT to do the copy back, +// but that not strictly necessary when already in an OS specific module. +func Lstat(path string) (*StatT, error) { + fi, err := os.Lstat(path) + if err != nil { + return nil, err + } + + return &StatT{ + name: fi.Name(), + size: fi.Size(), + mode: fi.Mode(), + modTime: fi.ModTime(), + isDir: fi.IsDir()}, nil +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/meminfo.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/meminfo.go new file mode 100644 index 0000000..3b6e947 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/meminfo.go @@ -0,0 +1,17 @@ +package system + +// MemInfo contains memory statistics of the host system. +type MemInfo struct { + // Total usable RAM (i.e. physical RAM minus a few reserved bits and the + // kernel binary code). + MemTotal int64 + + // Amount of free memory. + MemFree int64 + + // Total amount of swap space available. + SwapTotal int64 + + // Amount of swap space that is currently unused. + SwapFree int64 +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/meminfo_linux.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/meminfo_linux.go new file mode 100644 index 0000000..a07bb17 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/meminfo_linux.go @@ -0,0 +1,66 @@ +package system + +import ( + "bufio" + "io" + "os" + "strconv" + "strings" + + "github.com/docker/docker/pkg/units" +) + +// ReadMemInfo retrieves memory statistics of the host system and returns a +// MemInfo type. +func ReadMemInfo() (*MemInfo, error) { + file, err := os.Open("/proc/meminfo") + if err != nil { + return nil, err + } + defer file.Close() + return parseMemInfo(file) +} + +// parseMemInfo parses the /proc/meminfo file into +// a MemInfo object given a io.Reader to the file. +// +// Throws error if there are problems reading from the file +func parseMemInfo(reader io.Reader) (*MemInfo, error) { + meminfo := &MemInfo{} + scanner := bufio.NewScanner(reader) + for scanner.Scan() { + // Expected format: ["MemTotal:", "1234", "kB"] + parts := strings.Fields(scanner.Text()) + + // Sanity checks: Skip malformed entries. + if len(parts) < 3 || parts[2] != "kB" { + continue + } + + // Convert to bytes. + size, err := strconv.Atoi(parts[1]) + if err != nil { + continue + } + bytes := int64(size) * units.KiB + + switch parts[0] { + case "MemTotal:": + meminfo.MemTotal = bytes + case "MemFree:": + meminfo.MemFree = bytes + case "SwapTotal:": + meminfo.SwapTotal = bytes + case "SwapFree:": + meminfo.SwapFree = bytes + } + + } + + // Handle errors that may have occurred during the reading of the file. + if err := scanner.Err(); err != nil { + return nil, err + } + + return meminfo, nil +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/meminfo_unsupported.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/meminfo_unsupported.go new file mode 100644 index 0000000..82ddd30 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/meminfo_unsupported.go @@ -0,0 +1,8 @@ +// +build !linux,!windows + +package system + +// ReadMemInfo is not supported on platforms other than linux and windows. +func ReadMemInfo() (*MemInfo, error) { + return nil, ErrNotSupportedPlatform +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/meminfo_windows.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/meminfo_windows.go new file mode 100644 index 0000000..d466425 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/meminfo_windows.go @@ -0,0 +1,44 @@ +package system + +import ( + "syscall" + "unsafe" +) + +var ( + modkernel32 = syscall.NewLazyDLL("kernel32.dll") + + procGlobalMemoryStatusEx = modkernel32.NewProc("GlobalMemoryStatusEx") +) + +// https://msdn.microsoft.com/en-us/library/windows/desktop/aa366589(v=vs.85).aspx +// https://msdn.microsoft.com/en-us/library/windows/desktop/aa366770(v=vs.85).aspx +type memorystatusex struct { + dwLength uint32 + dwMemoryLoad uint32 + ullTotalPhys uint64 + ullAvailPhys uint64 + ullTotalPageFile uint64 + ullAvailPageFile uint64 + ullTotalVirtual uint64 + ullAvailVirtual uint64 + ullAvailExtendedVirtual uint64 +} + +// ReadMemInfo retrieves memory statistics of the host system and returns a +// MemInfo type. +func ReadMemInfo() (*MemInfo, error) { + msi := &memorystatusex{ + dwLength: 64, + } + r1, _, _ := procGlobalMemoryStatusEx.Call(uintptr(unsafe.Pointer(msi))) + if r1 == 0 { + return &MemInfo{}, nil + } + return &MemInfo{ + MemTotal: int64(msi.ullTotalPhys), + MemFree: int64(msi.ullAvailPhys), + SwapTotal: int64(msi.ullTotalPageFile), + SwapFree: int64(msi.ullAvailPageFile), + }, nil +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/mknod.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/mknod.go new file mode 100644 index 0000000..7395818 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/mknod.go @@ -0,0 +1,22 @@ +// +build !windows + +package system + +import ( + "syscall" +) + +// Mknod creates a filesystem node (file, device special file or named pipe) named path +// with attributes specified by mode and dev. +func Mknod(path string, mode uint32, dev int) error { + return syscall.Mknod(path, mode, dev) +} + +// Mkdev is used to build the value of linux devices (in /dev/) which specifies major +// and minor number of the newly created device special file. +// Linux device nodes are a bit weird due to backwards compat with 16 bit device nodes. +// They are, from low to high: the lower 8 bits of the minor, then 12 bits of the major, +// then the top 12 bits of the minor. +func Mkdev(major int64, minor int64) uint32 { + return uint32(((minor & 0xfff00) << 12) | ((major & 0xfff) << 8) | (minor & 0xff)) +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/mknod_windows.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/mknod_windows.go new file mode 100644 index 0000000..2e863c0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/mknod_windows.go @@ -0,0 +1,13 @@ +// +build windows + +package system + +// Mknod is not implemented on Windows. +func Mknod(path string, mode uint32, dev int) error { + return ErrNotSupportedPlatform +} + +// Mkdev is not implemented on Windows. +func Mkdev(major int64, minor int64) uint32 { + panic("Mkdev not implemented on Windows.") +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/stat.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/stat.go new file mode 100644 index 0000000..087034c --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/stat.go @@ -0,0 +1,53 @@ +// +build !windows + +package system + +import ( + "syscall" +) + +// StatT type contains status of a file. It contains metadata +// like permission, owner, group, size, etc about a file. +type StatT struct { + mode uint32 + uid uint32 + gid uint32 + rdev uint64 + size int64 + mtim syscall.Timespec +} + +// Mode returns file's permission mode. +func (s StatT) Mode() uint32 { + return s.mode +} + +// UID returns file's user id of owner. +func (s StatT) UID() uint32 { + return s.uid +} + +// GID returns file's group id of owner. +func (s StatT) GID() uint32 { + return s.gid +} + +// Rdev returns file's device ID (if it's special file). +func (s StatT) Rdev() uint64 { + return s.rdev +} + +// Size returns file's size. +func (s StatT) Size() int64 { + return s.size +} + +// Mtim returns file's last modification time. +func (s StatT) Mtim() syscall.Timespec { + return s.mtim +} + +// GetLastModification returns file's last modification time. +func (s StatT) GetLastModification() syscall.Timespec { + return s.Mtim() +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/stat_freebsd.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/stat_freebsd.go new file mode 100644 index 0000000..d0fb6f1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/stat_freebsd.go @@ -0,0 +1,27 @@ +package system + +import ( + "syscall" +) + +// fromStatT converts a syscall.Stat_t type to a system.Stat_t type +func fromStatT(s *syscall.Stat_t) (*StatT, error) { + return &StatT{size: s.Size, + mode: uint32(s.Mode), + uid: s.Uid, + gid: s.Gid, + rdev: uint64(s.Rdev), + mtim: s.Mtimespec}, nil +} + +// Stat takes a path to a file and returns +// a system.Stat_t type pertaining to that file. +// +// Throws an error if the file does not exist +func Stat(path string) (*StatT, error) { + s := &syscall.Stat_t{} + if err := syscall.Stat(path, s); err != nil { + return nil, err + } + return fromStatT(s) +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/stat_linux.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/stat_linux.go new file mode 100644 index 0000000..8b1eded --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/stat_linux.go @@ -0,0 +1,33 @@ +package system + +import ( + "syscall" +) + +// fromStatT converts a syscall.Stat_t type to a system.Stat_t type +func fromStatT(s *syscall.Stat_t) (*StatT, error) { + return &StatT{size: s.Size, + mode: s.Mode, + uid: s.Uid, + gid: s.Gid, + rdev: s.Rdev, + mtim: s.Mtim}, nil +} + +// FromStatT exists only on linux, and loads a system.StatT from a +// syscal.Stat_t. +func FromStatT(s *syscall.Stat_t) (*StatT, error) { + return fromStatT(s) +} + +// Stat takes a path to a file and returns +// a system.StatT type pertaining to that file. +// +// Throws an error if the file does not exist +func Stat(path string) (*StatT, error) { + s := &syscall.Stat_t{} + if err := syscall.Stat(path, s); err != nil { + return nil, err + } + return fromStatT(s) +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/stat_unsupported.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/stat_unsupported.go new file mode 100644 index 0000000..381ea82 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/stat_unsupported.go @@ -0,0 +1,17 @@ +// +build !linux,!windows,!freebsd + +package system + +import ( + "syscall" +) + +// fromStatT creates a system.StatT type from a syscall.Stat_t type +func fromStatT(s *syscall.Stat_t) (*StatT, error) { + return &StatT{size: s.Size, + mode: uint32(s.Mode), + uid: s.Uid, + gid: s.Gid, + rdev: uint64(s.Rdev), + mtim: s.Mtimespec}, nil +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/stat_windows.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/stat_windows.go new file mode 100644 index 0000000..39490c6 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/stat_windows.go @@ -0,0 +1,43 @@ +// +build windows + +package system + +import ( + "os" + "time" +) + +// StatT type contains status of a file. It contains metadata +// like name, permission, size, etc about a file. +type StatT struct { + name string + size int64 + mode os.FileMode + modTime time.Time + isDir bool +} + +// Name returns file's name. +func (s StatT) Name() string { + return s.name +} + +// Size returns file's size. +func (s StatT) Size() int64 { + return s.size +} + +// Mode returns file's permission mode. +func (s StatT) Mode() os.FileMode { + return s.mode +} + +// ModTime returns file's last modification time. +func (s StatT) ModTime() time.Time { + return s.modTime +} + +// IsDir returns whether file is actually a directory. +func (s StatT) IsDir() bool { + return s.isDir +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/umask.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/umask.go new file mode 100644 index 0000000..c670fcd --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/umask.go @@ -0,0 +1,13 @@ +// +build !windows + +package system + +import ( + "syscall" +) + +// Umask sets current process's file mode creation mask to newmask +// and return oldmask. +func Umask(newmask int) (oldmask int, err error) { + return syscall.Umask(newmask), nil +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/umask_windows.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/umask_windows.go new file mode 100644 index 0000000..13f1de1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/umask_windows.go @@ -0,0 +1,9 @@ +// +build windows + +package system + +// Umask is not supported on the windows platform. +func Umask(newmask int) (oldmask int, err error) { + // should not be called on cli code path + return 0, ErrNotSupportedPlatform +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/utimes_darwin.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/utimes_darwin.go new file mode 100644 index 0000000..0a16197 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/utimes_darwin.go @@ -0,0 +1,8 @@ +package system + +import "syscall" + +// LUtimesNano is not supported by darwin platform. +func LUtimesNano(path string, ts []syscall.Timespec) error { + return ErrNotSupportedPlatform +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/utimes_freebsd.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/utimes_freebsd.go new file mode 100644 index 0000000..e2eac3b --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/utimes_freebsd.go @@ -0,0 +1,22 @@ +package system + +import ( + "syscall" + "unsafe" +) + +// LUtimesNano is used to change access and modification time of the specified path. +// It's used for symbol link file because syscall.UtimesNano doesn't support a NOFOLLOW flag atm. +func LUtimesNano(path string, ts []syscall.Timespec) error { + var _path *byte + _path, err := syscall.BytePtrFromString(path) + if err != nil { + return err + } + + if _, _, err := syscall.Syscall(syscall.SYS_LUTIMES, uintptr(unsafe.Pointer(_path)), uintptr(unsafe.Pointer(&ts[0])), 0); err != 0 && err != syscall.ENOSYS { + return err + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/utimes_linux.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/utimes_linux.go new file mode 100644 index 0000000..007bfa8 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/utimes_linux.go @@ -0,0 +1,26 @@ +package system + +import ( + "syscall" + "unsafe" +) + +// LUtimesNano is used to change access and modification time of the speficied path. +// It's used for symbol link file because syscall.UtimesNano doesn't support a NOFOLLOW flag atm. +func LUtimesNano(path string, ts []syscall.Timespec) error { + // These are not currently available in syscall + atFdCwd := -100 + atSymLinkNoFollow := 0x100 + + var _path *byte + _path, err := syscall.BytePtrFromString(path) + if err != nil { + return err + } + + if _, _, err := syscall.Syscall6(syscall.SYS_UTIMENSAT, uintptr(atFdCwd), uintptr(unsafe.Pointer(_path)), uintptr(unsafe.Pointer(&ts[0])), uintptr(atSymLinkNoFollow), 0, 0); err != 0 && err != syscall.ENOSYS { + return err + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/utimes_unsupported.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/utimes_unsupported.go new file mode 100644 index 0000000..50c3a04 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/utimes_unsupported.go @@ -0,0 +1,10 @@ +// +build !linux,!freebsd,!darwin + +package system + +import "syscall" + +// LUtimesNano is not supported on platforms other than linux, freebsd and darwin. +func LUtimesNano(path string, ts []syscall.Timespec) error { + return ErrNotSupportedPlatform +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/xattrs_linux.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/xattrs_linux.go new file mode 100644 index 0000000..d2e2c05 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/xattrs_linux.go @@ -0,0 +1,63 @@ +package system + +import ( + "syscall" + "unsafe" +) + +// Lgetxattr retrieves the value of the extended attribute identified by attr +// and associated with the given path in the file system. +// It will returns a nil slice and nil error if the xattr is not set. +func Lgetxattr(path string, attr string) ([]byte, error) { + pathBytes, err := syscall.BytePtrFromString(path) + if err != nil { + return nil, err + } + attrBytes, err := syscall.BytePtrFromString(attr) + if err != nil { + return nil, err + } + + dest := make([]byte, 128) + destBytes := unsafe.Pointer(&dest[0]) + sz, _, errno := syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0) + if errno == syscall.ENODATA { + return nil, nil + } + if errno == syscall.ERANGE { + dest = make([]byte, sz) + destBytes := unsafe.Pointer(&dest[0]) + sz, _, errno = syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0) + } + if errno != 0 { + return nil, errno + } + + return dest[:sz], nil +} + +var _zero uintptr + +// Lsetxattr sets the value of the extended attribute identified by attr +// and associated with the given path in the file system. +func Lsetxattr(path string, attr string, data []byte, flags int) error { + pathBytes, err := syscall.BytePtrFromString(path) + if err != nil { + return err + } + attrBytes, err := syscall.BytePtrFromString(attr) + if err != nil { + return err + } + var dataBytes unsafe.Pointer + if len(data) > 0 { + dataBytes = unsafe.Pointer(&data[0]) + } else { + dataBytes = unsafe.Pointer(&_zero) + } + _, _, errno := syscall.Syscall6(syscall.SYS_LSETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(dataBytes), uintptr(len(data)), uintptr(flags), 0) + if errno != 0 { + return errno + } + return nil +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/system/xattrs_unsupported.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/xattrs_unsupported.go new file mode 100644 index 0000000..0114f22 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/system/xattrs_unsupported.go @@ -0,0 +1,13 @@ +// +build !linux + +package system + +// Lgetxattr is not supported on platforms other than linux. +func Lgetxattr(path string, attr string) ([]byte, error) { + return nil, ErrNotSupportedPlatform +} + +// Lsetxattr is not supported on platforms other than linux. +func Lsetxattr(path string, attr string, data []byte, flags int) error { + return ErrNotSupportedPlatform +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/units/duration.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/units/duration.go new file mode 100644 index 0000000..c219a8a --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/units/duration.go @@ -0,0 +1,33 @@ +// Package units provides helper function to parse and print size and time units +// in human-readable format. +package units + +import ( + "fmt" + "time" +) + +// HumanDuration returns a human-readable approximation of a duration +// (eg. "About a minute", "4 hours ago", etc.). +func HumanDuration(d time.Duration) string { + if seconds := int(d.Seconds()); seconds < 1 { + return "Less than a second" + } else if seconds < 60 { + return fmt.Sprintf("%d seconds", seconds) + } else if minutes := int(d.Minutes()); minutes == 1 { + return "About a minute" + } else if minutes < 60 { + return fmt.Sprintf("%d minutes", minutes) + } else if hours := int(d.Hours()); hours == 1 { + return "About an hour" + } else if hours < 48 { + return fmt.Sprintf("%d hours", hours) + } else if hours < 24*7*2 { + return fmt.Sprintf("%d days", hours/24) + } else if hours < 24*30*3 { + return fmt.Sprintf("%d weeks", hours/24/7) + } else if hours < 24*365*2 { + return fmt.Sprintf("%d months", hours/24/30) + } + return fmt.Sprintf("%d years", int(d.Hours())/24/365) +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/pkg/units/size.go b/Godeps/_workspace/src/github.com/docker/docker/pkg/units/size.go new file mode 100644 index 0000000..3b59daf --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/pkg/units/size.go @@ -0,0 +1,95 @@ +package units + +import ( + "fmt" + "regexp" + "strconv" + "strings" +) + +// See: http://en.wikipedia.org/wiki/Binary_prefix +const ( + // Decimal + + KB = 1000 + MB = 1000 * KB + GB = 1000 * MB + TB = 1000 * GB + PB = 1000 * TB + + // Binary + + KiB = 1024 + MiB = 1024 * KiB + GiB = 1024 * MiB + TiB = 1024 * GiB + PiB = 1024 * TiB +) + +type unitMap map[string]int64 + +var ( + decimalMap = unitMap{"k": KB, "m": MB, "g": GB, "t": TB, "p": PB} + binaryMap = unitMap{"k": KiB, "m": MiB, "g": GiB, "t": TiB, "p": PiB} + sizeRegex = regexp.MustCompile(`^(\d+)([kKmMgGtTpP])?[bB]?$`) +) + +var decimapAbbrs = []string{"B", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"} +var binaryAbbrs = []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"} + +// CustomSize returns a human-readable approximation of a size +// using custom format. +func CustomSize(format string, size float64, base float64, _map []string) string { + i := 0 + for size >= base { + size = size / base + i++ + } + return fmt.Sprintf(format, size, _map[i]) +} + +// HumanSize returns a human-readable approximation of a size +// capped at 4 valid numbers (eg. "2.746 MB", "796 KB"). +func HumanSize(size float64) string { + return CustomSize("%.4g %s", size, 1000.0, decimapAbbrs) +} + +// BytesSize returns a human-readable size in bytes, kibibytes, +// mebibytes, gibibytes, or tebibytes (eg. "44kiB", "17MiB"). +func BytesSize(size float64) string { + return CustomSize("%.4g %s", size, 1024.0, binaryAbbrs) +} + +// FromHumanSize returns an integer from a human-readable specification of a +// size using SI standard (eg. "44kB", "17MB"). +func FromHumanSize(size string) (int64, error) { + return parseSize(size, decimalMap) +} + +// RAMInBytes parses a human-readable string representing an amount of RAM +// in bytes, kibibytes, mebibytes, gibibytes, or tebibytes and +// returns the number of bytes, or -1 if the string is unparseable. +// Units are case-insensitive, and the 'b' suffix is optional. +func RAMInBytes(size string) (int64, error) { + return parseSize(size, binaryMap) +} + +// Parses the human-readable size string into the amount it represents. +func parseSize(sizeStr string, uMap unitMap) (int64, error) { + matches := sizeRegex.FindStringSubmatch(sizeStr) + if len(matches) != 3 { + return -1, fmt.Errorf("invalid size: '%s'", sizeStr) + } + + size, err := strconv.ParseInt(matches[1], 10, 0) + if err != nil { + return -1, err + } + + unitPrefix := strings.ToLower(matches[2]) + if mul, ok := uMap[unitPrefix]; ok { + size *= mul + } + + return size, nil +} diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/Azure/go-ansiterm/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/Azure/go-ansiterm/LICENSE new file mode 100644 index 0000000..e3d9a64 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/Azure/go-ansiterm/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2015 Microsoft Corporation + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/BurntSushi/toml/COPYING b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/BurntSushi/toml/COPYING new file mode 100644 index 0000000..5a8e332 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/BurntSushi/toml/COPYING @@ -0,0 +1,14 @@ + DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE + Version 2, December 2004 + + Copyright (C) 2004 Sam Hocevar + + Everyone is permitted to copy and distribute verbatim or modified + copies of this license document, and changing it is allowed as long + as the name is changed. + + DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. You just DO WHAT THE FUCK YOU WANT TO. + diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/BurntSushi/toml/cmd/toml-test-decoder/COPYING b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/BurntSushi/toml/cmd/toml-test-decoder/COPYING new file mode 100644 index 0000000..5a8e332 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/BurntSushi/toml/cmd/toml-test-decoder/COPYING @@ -0,0 +1,14 @@ + DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE + Version 2, December 2004 + + Copyright (C) 2004 Sam Hocevar + + Everyone is permitted to copy and distribute verbatim or modified + copies of this license document, and changing it is allowed as long + as the name is changed. + + DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. You just DO WHAT THE FUCK YOU WANT TO. + diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/BurntSushi/toml/cmd/toml-test-encoder/COPYING b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/BurntSushi/toml/cmd/toml-test-encoder/COPYING new file mode 100644 index 0000000..5a8e332 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/BurntSushi/toml/cmd/toml-test-encoder/COPYING @@ -0,0 +1,14 @@ + DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE + Version 2, December 2004 + + Copyright (C) 2004 Sam Hocevar + + Everyone is permitted to copy and distribute verbatim or modified + copies of this license document, and changing it is allowed as long + as the name is changed. + + DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. You just DO WHAT THE FUCK YOU WANT TO. + diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/BurntSushi/toml/cmd/tomlv/COPYING b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/BurntSushi/toml/cmd/tomlv/COPYING new file mode 100644 index 0000000..5a8e332 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/BurntSushi/toml/cmd/tomlv/COPYING @@ -0,0 +1,14 @@ + DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE + Version 2, December 2004 + + Copyright (C) 2004 Sam Hocevar + + Everyone is permitted to copy and distribute verbatim or modified + copies of this license document, and changing it is allowed as long + as the name is changed. + + DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. You just DO WHAT THE FUCK YOU WANT TO. + diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/Graylog2/go-gelf/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/Graylog2/go-gelf/LICENSE new file mode 100644 index 0000000..bc756ae --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/Graylog2/go-gelf/LICENSE @@ -0,0 +1,21 @@ +Copyright 2012 SocialCode + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/Sirupsen/logrus/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/Sirupsen/logrus/LICENSE new file mode 100644 index 0000000..f090cb4 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/Sirupsen/logrus/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2014 Simon Eskildsen + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/agl/ed25519/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/agl/ed25519/LICENSE new file mode 100644 index 0000000..7448756 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/agl/ed25519/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2012 The Go Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/armon/go-metrics/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/armon/go-metrics/LICENSE new file mode 100644 index 0000000..106569e --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/armon/go-metrics/LICENSE @@ -0,0 +1,20 @@ +The MIT License (MIT) + +Copyright (c) 2013 Armon Dadgar + +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of +the Software, and to permit persons to whom the Software is furnished to do so, +subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS +FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR +COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER +IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/aws/aws-sdk-go/LICENSE.txt b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/aws/aws-sdk-go/LICENSE.txt new file mode 100644 index 0000000..d645695 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/aws/aws-sdk-go/LICENSE.txt @@ -0,0 +1,202 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "[]" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/boltdb/bolt/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/boltdb/bolt/LICENSE new file mode 100644 index 0000000..004e77f --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/boltdb/bolt/LICENSE @@ -0,0 +1,20 @@ +The MIT License (MIT) + +Copyright (c) 2013 Ben Johnson + +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of +the Software, and to permit persons to whom the Software is furnished to do so, +subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS +FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR +COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER +IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/coreos/etcd/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/coreos/etcd/LICENSE new file mode 100644 index 0000000..d645695 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/coreos/etcd/LICENSE @@ -0,0 +1,202 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "[]" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/coreos/go-systemd/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/coreos/go-systemd/LICENSE new file mode 100644 index 0000000..37ec93a --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/coreos/go-systemd/LICENSE @@ -0,0 +1,191 @@ +Apache License +Version 2.0, January 2004 +http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. Definitions. + +"License" shall mean the terms and conditions for use, reproduction, and +distribution as defined by Sections 1 through 9 of this document. + +"Licensor" shall mean the copyright owner or entity authorized by the copyright +owner that is granting the License. + +"Legal Entity" shall mean the union of the acting entity and all other entities +that control, are controlled by, or are under common control with that entity. +For the purposes of this definition, "control" means (i) the power, direct or +indirect, to cause the direction or management of such entity, whether by +contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the +outstanding shares, or (iii) beneficial ownership of such entity. + +"You" (or "Your") shall mean an individual or Legal Entity exercising +permissions granted by this License. + +"Source" form shall mean the preferred form for making modifications, including +but not limited to software source code, documentation source, and configuration +files. + +"Object" form shall mean any form resulting from mechanical transformation or +translation of a Source form, including but not limited to compiled object code, +generated documentation, and conversions to other media types. + +"Work" shall mean the work of authorship, whether in Source or Object form, made +available under the License, as indicated by a copyright notice that is included +in or attached to the work (an example is provided in the Appendix below). + +"Derivative Works" shall mean any work, whether in Source or Object form, that +is based on (or derived from) the Work and for which the editorial revisions, +annotations, elaborations, or other modifications represent, as a whole, an +original work of authorship. For the purposes of this License, Derivative Works +shall not include works that remain separable from, or merely link (or bind by +name) to the interfaces of, the Work and Derivative Works thereof. + +"Contribution" shall mean any work of authorship, including the original version +of the Work and any modifications or additions to that Work or Derivative Works +thereof, that is intentionally submitted to Licensor for inclusion in the Work +by the copyright owner or by an individual or Legal Entity authorized to submit +on behalf of the copyright owner. For the purposes of this definition, +"submitted" means any form of electronic, verbal, or written communication sent +to the Licensor or its representatives, including but not limited to +communication on electronic mailing lists, source code control systems, and +issue tracking systems that are managed by, or on behalf of, the Licensor for +the purpose of discussing and improving the Work, but excluding communication +that is conspicuously marked or otherwise designated in writing by the copyright +owner as "Not a Contribution." + +"Contributor" shall mean Licensor and any individual or Legal Entity on behalf +of whom a Contribution has been received by Licensor and subsequently +incorporated within the Work. + +2. Grant of Copyright License. + +Subject to the terms and conditions of this License, each Contributor hereby +grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, +irrevocable copyright license to reproduce, prepare Derivative Works of, +publicly display, publicly perform, sublicense, and distribute the Work and such +Derivative Works in Source or Object form. + +3. Grant of Patent License. + +Subject to the terms and conditions of this License, each Contributor hereby +grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, +irrevocable (except as stated in this section) patent license to make, have +made, use, offer to sell, sell, import, and otherwise transfer the Work, where +such license applies only to those patent claims licensable by such Contributor +that are necessarily infringed by their Contribution(s) alone or by combination +of their Contribution(s) with the Work to which such Contribution(s) was +submitted. If You institute patent litigation against any entity (including a +cross-claim or counterclaim in a lawsuit) alleging that the Work or a +Contribution incorporated within the Work constitutes direct or contributory +patent infringement, then any patent licenses granted to You under this License +for that Work shall terminate as of the date such litigation is filed. + +4. Redistribution. + +You may reproduce and distribute copies of the Work or Derivative Works thereof +in any medium, with or without modifications, and in Source or Object form, +provided that You meet the following conditions: + +You must give any other recipients of the Work or Derivative Works a copy of +this License; and +You must cause any modified files to carry prominent notices stating that You +changed the files; and +You must retain, in the Source form of any Derivative Works that You distribute, +all copyright, patent, trademark, and attribution notices from the Source form +of the Work, excluding those notices that do not pertain to any part of the +Derivative Works; and +If the Work includes a "NOTICE" text file as part of its distribution, then any +Derivative Works that You distribute must include a readable copy of the +attribution notices contained within such NOTICE file, excluding those notices +that do not pertain to any part of the Derivative Works, in at least one of the +following places: within a NOTICE text file distributed as part of the +Derivative Works; within the Source form or documentation, if provided along +with the Derivative Works; or, within a display generated by the Derivative +Works, if and wherever such third-party notices normally appear. The contents of +the NOTICE file are for informational purposes only and do not modify the +License. You may add Your own attribution notices within Derivative Works that +You distribute, alongside or as an addendum to the NOTICE text from the Work, +provided that such additional attribution notices cannot be construed as +modifying the License. +You may add Your own copyright statement to Your modifications and may provide +additional or different license terms and conditions for use, reproduction, or +distribution of Your modifications, or for any such Derivative Works as a whole, +provided Your use, reproduction, and distribution of the Work otherwise complies +with the conditions stated in this License. + +5. Submission of Contributions. + +Unless You explicitly state otherwise, any Contribution intentionally submitted +for inclusion in the Work by You to the Licensor shall be under the terms and +conditions of this License, without any additional terms or conditions. +Notwithstanding the above, nothing herein shall supersede or modify the terms of +any separate license agreement you may have executed with Licensor regarding +such Contributions. + +6. Trademarks. + +This License does not grant permission to use the trade names, trademarks, +service marks, or product names of the Licensor, except as required for +reasonable and customary use in describing the origin of the Work and +reproducing the content of the NOTICE file. + +7. Disclaimer of Warranty. + +Unless required by applicable law or agreed to in writing, Licensor provides the +Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, +including, without limitation, any warranties or conditions of TITLE, +NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are +solely responsible for determining the appropriateness of using or +redistributing the Work and assume any risks associated with Your exercise of +permissions under this License. + +8. Limitation of Liability. + +In no event and under no legal theory, whether in tort (including negligence), +contract, or otherwise, unless required by applicable law (such as deliberate +and grossly negligent acts) or agreed to in writing, shall any Contributor be +liable to You for damages, including any direct, indirect, special, incidental, +or consequential damages of any character arising as a result of this License or +out of the use or inability to use the Work (including but not limited to +damages for loss of goodwill, work stoppage, computer failure or malfunction, or +any and all other commercial damages or losses), even if such Contributor has +been advised of the possibility of such damages. + +9. Accepting Warranty or Additional Liability. + +While redistributing the Work or Derivative Works thereof, You may choose to +offer, and charge a fee for, acceptance of support, warranty, indemnity, or +other liability obligations and/or rights consistent with this License. However, +in accepting such obligations, You may act only on Your own behalf and on Your +sole responsibility, not on behalf of any other Contributor, and only if You +agree to indemnify, defend, and hold each Contributor harmless for any liability +incurred by, or claims asserted against, such Contributor by reason of your +accepting any such warranty or additional liability. + +END OF TERMS AND CONDITIONS + +APPENDIX: How to apply the Apache License to your work + +To apply the Apache License to your work, attach the following boilerplate +notice, with the fields enclosed by brackets "[]" replaced with your own +identifying information. (Don't include the brackets!) The text should be +enclosed in the appropriate comment syntax for the file format. We also +recommend that a file or class name and description of purpose be included on +the same "printed page" as the copyright notice for easier identification within +third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/deckarep/golang-set/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/deckarep/golang-set/LICENSE new file mode 100644 index 0000000..b5768f8 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/deckarep/golang-set/LICENSE @@ -0,0 +1,22 @@ +Open Source Initiative OSI - The MIT License (MIT):Licensing + +The MIT License (MIT) +Copyright (c) 2013 Ralph Caraveo (deckarep@gmail.com) + +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. \ No newline at end of file diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/docker/distribution/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/docker/distribution/LICENSE new file mode 100644 index 0000000..e06d208 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/docker/distribution/LICENSE @@ -0,0 +1,202 @@ +Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. 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If the provision + cannot be reformed, it shall be severed from this Public License + without affecting the enforceability of the remaining terms and + conditions. + + c. No term or condition of this Public License will be waived and no + failure to comply consented to unless expressly agreed to by the + Licensor. + + d. Nothing in this Public License constitutes or may be interpreted + as a limitation upon, or waiver of, any privileges and immunities + that apply to the Licensor or You, including from the legal + processes of any jurisdiction or authority. + + +======================================================================= + +Creative Commons is not a party to its public licenses. +Notwithstanding, Creative Commons may elect to apply one of its public +licenses to material it publishes and in those instances will be +considered the "Licensor." Except for the limited purpose of indicating +that material is shared under a Creative Commons public license or as +otherwise permitted by the Creative Commons policies published at +creativecommons.org/policies, Creative Commons does not authorize the +use of the trademark "Creative Commons" or any other trademark or logo +of Creative Commons without its prior written consent including, +without limitation, in connection with any unauthorized modifications +to any of its public licenses or any other arrangements, +understandings, or agreements concerning use of licensed material. For +the avoidance of doubt, this paragraph does not form part of the public +licenses. + +Creative Commons may be contacted at creativecommons.org. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/docker/libnetwork/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/docker/libnetwork/LICENSE new file mode 100644 index 0000000..e06d208 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/docker/libnetwork/LICENSE @@ -0,0 +1,202 @@ +Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "{}" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright {yyyy} {name of copyright owner} + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/docker/libtrust/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/docker/libtrust/LICENSE new file mode 100644 index 0000000..2744858 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/docker/libtrust/LICENSE @@ -0,0 +1,191 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + Copyright 2014 Docker, Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/docker/notary/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/docker/notary/LICENSE new file mode 100644 index 0000000..6daf85e --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/docker/notary/LICENSE @@ -0,0 +1,201 @@ +Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "{}" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright 2015 Docker, Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/docker/notary/notarymysql/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/docker/notary/notarymysql/LICENSE new file mode 100644 index 0000000..c8476ac --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/docker/notary/notarymysql/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2014 Sameer Naik + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/endophage/gotuf/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/endophage/gotuf/LICENSE new file mode 100644 index 0000000..d92ae9e --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/endophage/gotuf/LICENSE @@ -0,0 +1,30 @@ +Copyright (c) 2015, Docker Inc. +Copyright (c) 2014-2015 Prime Directive, Inc. + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Prime Directive, Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/fluent/fluent-logger-golang/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/fluent/fluent-logger-golang/LICENSE new file mode 100644 index 0000000..1aa91de --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/fluent/fluent-logger-golang/LICENSE @@ -0,0 +1,13 @@ +Copyright (c) 2013 Tatsuo Kaniwa + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + +http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. \ No newline at end of file diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/go-check/check/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/go-check/check/LICENSE new file mode 100644 index 0000000..545cf2d --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/go-check/check/LICENSE @@ -0,0 +1,25 @@ +Gocheck - A rich testing framework for Go + +Copyright (c) 2010-2013 Gustavo Niemeyer + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR +ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/godbus/dbus/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/godbus/dbus/LICENSE new file mode 100644 index 0000000..06b252b --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/godbus/dbus/LICENSE @@ -0,0 +1,25 @@ +Copyright (c) 2013, Georg Reinke () +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: + +1. Redistributions of source code must retain the above copyright notice, +this list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright +notice, this list of conditions and the following disclaimer in the +documentation and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED +TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR +PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF +LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING +NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/golang/protobuf/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/golang/protobuf/LICENSE new file mode 100644 index 0000000..1b1b192 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/golang/protobuf/LICENSE @@ -0,0 +1,31 @@ +Go support for Protocol Buffers - Google's data interchange format + +Copyright 2010 The Go Authors. All rights reserved. +https://github.com/golang/protobuf + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/gorilla/context/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/gorilla/context/LICENSE new file mode 100644 index 0000000..0e5fb87 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/gorilla/context/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2012 Rodrigo Moraes. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/gorilla/mux/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/gorilla/mux/LICENSE new file mode 100644 index 0000000..0e5fb87 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/gorilla/mux/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2012 Rodrigo Moraes. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/consul/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/consul/LICENSE new file mode 100644 index 0000000..c33dcc7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/consul/LICENSE @@ -0,0 +1,354 @@ +Mozilla Public License, version 2.0 + +1. Definitions + +1.1. “Contributor” + + means each individual or legal entity that creates, contributes to the + creation of, or owns Covered Software. + +1.2. “Contributor Version” + + means the combination of the Contributions of others (if any) used by a + Contributor and that particular Contributor’s Contribution. + +1.3. “Contribution” + + means Covered Software of a particular Contributor. + +1.4. “Covered Software” + + means Source Code Form to which the initial Contributor has attached the + notice in Exhibit A, the Executable Form of such Source Code Form, and + Modifications of such Source Code Form, in each case including portions + thereof. + +1.5. “Incompatible With Secondary Licenses” + means + + a. that the initial Contributor has attached the notice described in + Exhibit B to the Covered Software; or + + b. that the Covered Software was made available under the terms of version + 1.1 or earlier of the License, but not also under the terms of a + Secondary License. + +1.6. “Executable Form” + + means any form of the work other than Source Code Form. + +1.7. “Larger Work” + + means a work that combines Covered Software with other material, in a separate + file or files, that is not Covered Software. + +1.8. “License” + + means this document. + +1.9. “Licensable” + + means having the right to grant, to the maximum extent possible, whether at the + time of the initial grant or subsequently, any and all of the rights conveyed by + this License. + +1.10. “Modifications” + + means any of the following: + + a. any file in Source Code Form that results from an addition to, deletion + from, or modification of the contents of Covered Software; or + + b. any new file in Source Code Form that contains any Covered Software. + +1.11. “Patent Claims” of a Contributor + + means any patent claim(s), including without limitation, method, process, + and apparatus claims, in any patent Licensable by such Contributor that + would be infringed, but for the grant of the License, by the making, + using, selling, offering for sale, having made, import, or transfer of + either its Contributions or its Contributor Version. + +1.12. “Secondary License” + + means either the GNU General Public License, Version 2.0, the GNU Lesser + General Public License, Version 2.1, the GNU Affero General Public + License, Version 3.0, or any later versions of those licenses. + +1.13. “Source Code Form” + + means the form of the work preferred for making modifications. + +1.14. “You” (or “Your”) + + means an individual or a legal entity exercising rights under this + License. For legal entities, “You” includes any entity that controls, is + controlled by, or is under common control with You. For purposes of this + definition, “control” means (a) the power, direct or indirect, to cause + the direction or management of such entity, whether by contract or + otherwise, or (b) ownership of more than fifty percent (50%) of the + outstanding shares or beneficial ownership of such entity. + + +2. License Grants and Conditions + +2.1. Grants + + Each Contributor hereby grants You a world-wide, royalty-free, + non-exclusive license: + + a. under intellectual property rights (other than patent or trademark) + Licensable by such Contributor to use, reproduce, make available, + modify, display, perform, distribute, and otherwise exploit its + Contributions, either on an unmodified basis, with Modifications, or as + part of a Larger Work; and + + b. under Patent Claims of such Contributor to make, use, sell, offer for + sale, have made, import, and otherwise transfer either its Contributions + or its Contributor Version. + +2.2. Effective Date + + The licenses granted in Section 2.1 with respect to any Contribution become + effective for each Contribution on the date the Contributor first distributes + such Contribution. + +2.3. Limitations on Grant Scope + + The licenses granted in this Section 2 are the only rights granted under this + License. No additional rights or licenses will be implied from the distribution + or licensing of Covered Software under this License. Notwithstanding Section + 2.1(b) above, no patent license is granted by a Contributor: + + a. for any code that a Contributor has removed from Covered Software; or + + b. for infringements caused by: (i) Your and any other third party’s + modifications of Covered Software, or (ii) the combination of its + Contributions with other software (except as part of its Contributor + Version); or + + c. under Patent Claims infringed by Covered Software in the absence of its + Contributions. + + This License does not grant any rights in the trademarks, service marks, or + logos of any Contributor (except as may be necessary to comply with the + notice requirements in Section 3.4). + +2.4. Subsequent Licenses + + No Contributor makes additional grants as a result of Your choice to + distribute the Covered Software under a subsequent version of this License + (see Section 10.2) or under the terms of a Secondary License (if permitted + under the terms of Section 3.3). + +2.5. Representation + + Each Contributor represents that the Contributor believes its Contributions + are its original creation(s) or it has sufficient rights to grant the + rights to its Contributions conveyed by this License. + +2.6. Fair Use + + This License is not intended to limit any rights You have under applicable + copyright doctrines of fair use, fair dealing, or other equivalents. + +2.7. Conditions + + Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in + Section 2.1. + + +3. Responsibilities + +3.1. Distribution of Source Form + + All distribution of Covered Software in Source Code Form, including any + Modifications that You create or to which You contribute, must be under the + terms of this License. You must inform recipients that the Source Code Form + of the Covered Software is governed by the terms of this License, and how + they can obtain a copy of this License. You may not attempt to alter or + restrict the recipients’ rights in the Source Code Form. + +3.2. Distribution of Executable Form + + If You distribute Covered Software in Executable Form then: + + a. such Covered Software must also be made available in Source Code Form, + as described in Section 3.1, and You must inform recipients of the + Executable Form how they can obtain a copy of such Source Code Form by + reasonable means in a timely manner, at a charge no more than the cost + of distribution to the recipient; and + + b. You may distribute such Executable Form under the terms of this License, + or sublicense it under different terms, provided that the license for + the Executable Form does not attempt to limit or alter the recipients’ + rights in the Source Code Form under this License. + +3.3. Distribution of a Larger Work + + You may create and distribute a Larger Work under terms of Your choice, + provided that You also comply with the requirements of this License for the + Covered Software. If the Larger Work is a combination of Covered Software + with a work governed by one or more Secondary Licenses, and the Covered + Software is not Incompatible With Secondary Licenses, this License permits + You to additionally distribute such Covered Software under the terms of + such Secondary License(s), so that the recipient of the Larger Work may, at + their option, further distribute the Covered Software under the terms of + either this License or such Secondary License(s). + +3.4. Notices + + You may not remove or alter the substance of any license notices (including + copyright notices, patent notices, disclaimers of warranty, or limitations + of liability) contained within the Source Code Form of the Covered + Software, except that You may alter any license notices to the extent + required to remedy known factual inaccuracies. + +3.5. Application of Additional Terms + + You may choose to offer, and to charge a fee for, warranty, support, + indemnity or liability obligations to one or more recipients of Covered + Software. However, You may do so only on Your own behalf, and not on behalf + of any Contributor. You must make it absolutely clear that any such + warranty, support, indemnity, or liability obligation is offered by You + alone, and You hereby agree to indemnify every Contributor for any + liability incurred by such Contributor as a result of warranty, support, + indemnity or liability terms You offer. You may include additional + disclaimers of warranty and limitations of liability specific to any + jurisdiction. + +4. Inability to Comply Due to Statute or Regulation + + If it is impossible for You to comply with any of the terms of this License + with respect to some or all of the Covered Software due to statute, judicial + order, or regulation then You must: (a) comply with the terms of this License + to the maximum extent possible; and (b) describe the limitations and the code + they affect. Such description must be placed in a text file included with all + distributions of the Covered Software under this License. Except to the + extent prohibited by statute or regulation, such description must be + sufficiently detailed for a recipient of ordinary skill to be able to + understand it. + +5. Termination + +5.1. The rights granted under this License will terminate automatically if You + fail to comply with any of its terms. However, if You become compliant, + then the rights granted under this License from a particular Contributor + are reinstated (a) provisionally, unless and until such Contributor + explicitly and finally terminates Your grants, and (b) on an ongoing basis, + if such Contributor fails to notify You of the non-compliance by some + reasonable means prior to 60 days after You have come back into compliance. + Moreover, Your grants from a particular Contributor are reinstated on an + ongoing basis if such Contributor notifies You of the non-compliance by + some reasonable means, this is the first time You have received notice of + non-compliance with this License from such Contributor, and You become + compliant prior to 30 days after Your receipt of the notice. + +5.2. If You initiate litigation against any entity by asserting a patent + infringement claim (excluding declaratory judgment actions, counter-claims, + and cross-claims) alleging that a Contributor Version directly or + indirectly infringes any patent, then the rights granted to You by any and + all Contributors for the Covered Software under Section 2.1 of this License + shall terminate. + +5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user + license agreements (excluding distributors and resellers) which have been + validly granted by You or Your distributors under this License prior to + termination shall survive termination. + +6. Disclaimer of Warranty + + Covered Software is provided under this License on an “as is” basis, without + warranty of any kind, either expressed, implied, or statutory, including, + without limitation, warranties that the Covered Software is free of defects, + merchantable, fit for a particular purpose or non-infringing. The entire + risk as to the quality and performance of the Covered Software is with You. + Should any Covered Software prove defective in any respect, You (not any + Contributor) assume the cost of any necessary servicing, repair, or + correction. This disclaimer of warranty constitutes an essential part of this + License. No use of any Covered Software is authorized under this License + except under this disclaimer. + +7. Limitation of Liability + + Under no circumstances and under no legal theory, whether tort (including + negligence), contract, or otherwise, shall any Contributor, or anyone who + distributes Covered Software as permitted above, be liable to You for any + direct, indirect, special, incidental, or consequential damages of any + character including, without limitation, damages for lost profits, loss of + goodwill, work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses, even if such party shall have been + informed of the possibility of such damages. This limitation of liability + shall not apply to liability for death or personal injury resulting from such + party’s negligence to the extent applicable law prohibits such limitation. + Some jurisdictions do not allow the exclusion or limitation of incidental or + consequential damages, so this exclusion and limitation may not apply to You. + +8. Litigation + + Any litigation relating to this License may be brought only in the courts of + a jurisdiction where the defendant maintains its principal place of business + and such litigation shall be governed by laws of that jurisdiction, without + reference to its conflict-of-law provisions. Nothing in this Section shall + prevent a party’s ability to bring cross-claims or counter-claims. + +9. Miscellaneous + + This License represents the complete agreement concerning the subject matter + hereof. If any provision of this License is held to be unenforceable, such + provision shall be reformed only to the extent necessary to make it + enforceable. Any law or regulation which provides that the language of a + contract shall be construed against the drafter shall not be used to construe + this License against a Contributor. + + +10. Versions of the License + +10.1. New Versions + + Mozilla Foundation is the license steward. Except as provided in Section + 10.3, no one other than the license steward has the right to modify or + publish new versions of this License. Each version will be given a + distinguishing version number. + +10.2. Effect of New Versions + + You may distribute the Covered Software under the terms of the version of + the License under which You originally received the Covered Software, or + under the terms of any subsequent version published by the license + steward. + +10.3. Modified Versions + + If you create software not governed by this License, and you want to + create a new license for such software, you may create and use a modified + version of this License if you rename the license and remove any + references to the name of the license steward (except to note that such + modified license differs from this License). + +10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses + If You choose to distribute Source Code Form that is Incompatible With + Secondary Licenses under the terms of this version of the License, the + notice described in Exhibit B of this License must be attached. + +Exhibit A - Source Code Form License Notice + + This Source Code Form is subject to the + terms of the Mozilla Public License, v. + 2.0. If a copy of the MPL was not + distributed with this file, You can + obtain one at + http://mozilla.org/MPL/2.0/. + +If it is not possible or desirable to put the notice in a particular file, then +You may include the notice in a location (such as a LICENSE file in a relevant +directory) where a recipient would be likely to look for such a notice. + +You may add additional accurate notices of copyright ownership. + +Exhibit B - “Incompatible With Secondary Licenses” Notice + + This Source Code Form is “Incompatible + With Secondary Licenses”, as defined by + the Mozilla Public License, v. 2.0. + diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/consul/website/LICENSE.md b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/consul/website/LICENSE.md new file mode 100644 index 0000000..ac2c064 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/consul/website/LICENSE.md @@ -0,0 +1,10 @@ +# Proprietary License + +This license is temporary while a more official one is drafted. However, +this should make it clear: + +* The text contents of this website are MPL 2.0 licensed. + +* The design contents of this website are proprietary and may not be reproduced + or reused in any way other than to run the Consul website locally. The license + for the design is owned solely by HashiCorp, Inc. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/go-msgpack/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/go-msgpack/LICENSE new file mode 100644 index 0000000..ccae99f --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/go-msgpack/LICENSE @@ -0,0 +1,25 @@ +Copyright (c) 2012, 2013 Ugorji Nwoke. +All rights reserved. + +Redistribution and use in source and binary forms, with or without modification, +are permitted provided that the following conditions are met: + +* Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. +* Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. +* Neither the name of the author nor the names of its contributors may be used + to endorse or promote products derived from this software + without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR +ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON +ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/memberlist/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/memberlist/LICENSE new file mode 100644 index 0000000..c33dcc7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/memberlist/LICENSE @@ -0,0 +1,354 @@ +Mozilla Public License, version 2.0 + +1. Definitions + +1.1. “Contributor” + + means each individual or legal entity that creates, contributes to the + creation of, or owns Covered Software. + +1.2. “Contributor Version” + + means the combination of the Contributions of others (if any) used by a + Contributor and that particular Contributor’s Contribution. + +1.3. “Contribution” + + means Covered Software of a particular Contributor. + +1.4. “Covered Software” + + means Source Code Form to which the initial Contributor has attached the + notice in Exhibit A, the Executable Form of such Source Code Form, and + Modifications of such Source Code Form, in each case including portions + thereof. + +1.5. “Incompatible With Secondary Licenses” + means + + a. that the initial Contributor has attached the notice described in + Exhibit B to the Covered Software; or + + b. that the Covered Software was made available under the terms of version + 1.1 or earlier of the License, but not also under the terms of a + Secondary License. + +1.6. “Executable Form” + + means any form of the work other than Source Code Form. + +1.7. “Larger Work” + + means a work that combines Covered Software with other material, in a separate + file or files, that is not Covered Software. + +1.8. “License” + + means this document. + +1.9. “Licensable” + + means having the right to grant, to the maximum extent possible, whether at the + time of the initial grant or subsequently, any and all of the rights conveyed by + this License. + +1.10. “Modifications” + + means any of the following: + + a. any file in Source Code Form that results from an addition to, deletion + from, or modification of the contents of Covered Software; or + + b. any new file in Source Code Form that contains any Covered Software. + +1.11. “Patent Claims” of a Contributor + + means any patent claim(s), including without limitation, method, process, + and apparatus claims, in any patent Licensable by such Contributor that + would be infringed, but for the grant of the License, by the making, + using, selling, offering for sale, having made, import, or transfer of + either its Contributions or its Contributor Version. + +1.12. “Secondary License” + + means either the GNU General Public License, Version 2.0, the GNU Lesser + General Public License, Version 2.1, the GNU Affero General Public + License, Version 3.0, or any later versions of those licenses. + +1.13. “Source Code Form” + + means the form of the work preferred for making modifications. + +1.14. “You” (or “Your”) + + means an individual or a legal entity exercising rights under this + License. For legal entities, “You” includes any entity that controls, is + controlled by, or is under common control with You. For purposes of this + definition, “control” means (a) the power, direct or indirect, to cause + the direction or management of such entity, whether by contract or + otherwise, or (b) ownership of more than fifty percent (50%) of the + outstanding shares or beneficial ownership of such entity. + + +2. License Grants and Conditions + +2.1. Grants + + Each Contributor hereby grants You a world-wide, royalty-free, + non-exclusive license: + + a. under intellectual property rights (other than patent or trademark) + Licensable by such Contributor to use, reproduce, make available, + modify, display, perform, distribute, and otherwise exploit its + Contributions, either on an unmodified basis, with Modifications, or as + part of a Larger Work; and + + b. under Patent Claims of such Contributor to make, use, sell, offer for + sale, have made, import, and otherwise transfer either its Contributions + or its Contributor Version. + +2.2. Effective Date + + The licenses granted in Section 2.1 with respect to any Contribution become + effective for each Contribution on the date the Contributor first distributes + such Contribution. + +2.3. Limitations on Grant Scope + + The licenses granted in this Section 2 are the only rights granted under this + License. No additional rights or licenses will be implied from the distribution + or licensing of Covered Software under this License. Notwithstanding Section + 2.1(b) above, no patent license is granted by a Contributor: + + a. for any code that a Contributor has removed from Covered Software; or + + b. for infringements caused by: (i) Your and any other third party’s + modifications of Covered Software, or (ii) the combination of its + Contributions with other software (except as part of its Contributor + Version); or + + c. under Patent Claims infringed by Covered Software in the absence of its + Contributions. + + This License does not grant any rights in the trademarks, service marks, or + logos of any Contributor (except as may be necessary to comply with the + notice requirements in Section 3.4). + +2.4. Subsequent Licenses + + No Contributor makes additional grants as a result of Your choice to + distribute the Covered Software under a subsequent version of this License + (see Section 10.2) or under the terms of a Secondary License (if permitted + under the terms of Section 3.3). + +2.5. Representation + + Each Contributor represents that the Contributor believes its Contributions + are its original creation(s) or it has sufficient rights to grant the + rights to its Contributions conveyed by this License. + +2.6. Fair Use + + This License is not intended to limit any rights You have under applicable + copyright doctrines of fair use, fair dealing, or other equivalents. + +2.7. Conditions + + Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in + Section 2.1. + + +3. Responsibilities + +3.1. Distribution of Source Form + + All distribution of Covered Software in Source Code Form, including any + Modifications that You create or to which You contribute, must be under the + terms of this License. You must inform recipients that the Source Code Form + of the Covered Software is governed by the terms of this License, and how + they can obtain a copy of this License. You may not attempt to alter or + restrict the recipients’ rights in the Source Code Form. + +3.2. Distribution of Executable Form + + If You distribute Covered Software in Executable Form then: + + a. such Covered Software must also be made available in Source Code Form, + as described in Section 3.1, and You must inform recipients of the + Executable Form how they can obtain a copy of such Source Code Form by + reasonable means in a timely manner, at a charge no more than the cost + of distribution to the recipient; and + + b. You may distribute such Executable Form under the terms of this License, + or sublicense it under different terms, provided that the license for + the Executable Form does not attempt to limit or alter the recipients’ + rights in the Source Code Form under this License. + +3.3. Distribution of a Larger Work + + You may create and distribute a Larger Work under terms of Your choice, + provided that You also comply with the requirements of this License for the + Covered Software. If the Larger Work is a combination of Covered Software + with a work governed by one or more Secondary Licenses, and the Covered + Software is not Incompatible With Secondary Licenses, this License permits + You to additionally distribute such Covered Software under the terms of + such Secondary License(s), so that the recipient of the Larger Work may, at + their option, further distribute the Covered Software under the terms of + either this License or such Secondary License(s). + +3.4. Notices + + You may not remove or alter the substance of any license notices (including + copyright notices, patent notices, disclaimers of warranty, or limitations + of liability) contained within the Source Code Form of the Covered + Software, except that You may alter any license notices to the extent + required to remedy known factual inaccuracies. + +3.5. Application of Additional Terms + + You may choose to offer, and to charge a fee for, warranty, support, + indemnity or liability obligations to one or more recipients of Covered + Software. However, You may do so only on Your own behalf, and not on behalf + of any Contributor. You must make it absolutely clear that any such + warranty, support, indemnity, or liability obligation is offered by You + alone, and You hereby agree to indemnify every Contributor for any + liability incurred by such Contributor as a result of warranty, support, + indemnity or liability terms You offer. You may include additional + disclaimers of warranty and limitations of liability specific to any + jurisdiction. + +4. Inability to Comply Due to Statute or Regulation + + If it is impossible for You to comply with any of the terms of this License + with respect to some or all of the Covered Software due to statute, judicial + order, or regulation then You must: (a) comply with the terms of this License + to the maximum extent possible; and (b) describe the limitations and the code + they affect. Such description must be placed in a text file included with all + distributions of the Covered Software under this License. Except to the + extent prohibited by statute or regulation, such description must be + sufficiently detailed for a recipient of ordinary skill to be able to + understand it. + +5. Termination + +5.1. The rights granted under this License will terminate automatically if You + fail to comply with any of its terms. However, if You become compliant, + then the rights granted under this License from a particular Contributor + are reinstated (a) provisionally, unless and until such Contributor + explicitly and finally terminates Your grants, and (b) on an ongoing basis, + if such Contributor fails to notify You of the non-compliance by some + reasonable means prior to 60 days after You have come back into compliance. + Moreover, Your grants from a particular Contributor are reinstated on an + ongoing basis if such Contributor notifies You of the non-compliance by + some reasonable means, this is the first time You have received notice of + non-compliance with this License from such Contributor, and You become + compliant prior to 30 days after Your receipt of the notice. + +5.2. If You initiate litigation against any entity by asserting a patent + infringement claim (excluding declaratory judgment actions, counter-claims, + and cross-claims) alleging that a Contributor Version directly or + indirectly infringes any patent, then the rights granted to You by any and + all Contributors for the Covered Software under Section 2.1 of this License + shall terminate. + +5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user + license agreements (excluding distributors and resellers) which have been + validly granted by You or Your distributors under this License prior to + termination shall survive termination. + +6. Disclaimer of Warranty + + Covered Software is provided under this License on an “as is” basis, without + warranty of any kind, either expressed, implied, or statutory, including, + without limitation, warranties that the Covered Software is free of defects, + merchantable, fit for a particular purpose or non-infringing. The entire + risk as to the quality and performance of the Covered Software is with You. + Should any Covered Software prove defective in any respect, You (not any + Contributor) assume the cost of any necessary servicing, repair, or + correction. This disclaimer of warranty constitutes an essential part of this + License. No use of any Covered Software is authorized under this License + except under this disclaimer. + +7. Limitation of Liability + + Under no circumstances and under no legal theory, whether tort (including + negligence), contract, or otherwise, shall any Contributor, or anyone who + distributes Covered Software as permitted above, be liable to You for any + direct, indirect, special, incidental, or consequential damages of any + character including, without limitation, damages for lost profits, loss of + goodwill, work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses, even if such party shall have been + informed of the possibility of such damages. This limitation of liability + shall not apply to liability for death or personal injury resulting from such + party’s negligence to the extent applicable law prohibits such limitation. + Some jurisdictions do not allow the exclusion or limitation of incidental or + consequential damages, so this exclusion and limitation may not apply to You. + +8. Litigation + + Any litigation relating to this License may be brought only in the courts of + a jurisdiction where the defendant maintains its principal place of business + and such litigation shall be governed by laws of that jurisdiction, without + reference to its conflict-of-law provisions. Nothing in this Section shall + prevent a party’s ability to bring cross-claims or counter-claims. + +9. Miscellaneous + + This License represents the complete agreement concerning the subject matter + hereof. If any provision of this License is held to be unenforceable, such + provision shall be reformed only to the extent necessary to make it + enforceable. Any law or regulation which provides that the language of a + contract shall be construed against the drafter shall not be used to construe + this License against a Contributor. + + +10. Versions of the License + +10.1. New Versions + + Mozilla Foundation is the license steward. Except as provided in Section + 10.3, no one other than the license steward has the right to modify or + publish new versions of this License. Each version will be given a + distinguishing version number. + +10.2. Effect of New Versions + + You may distribute the Covered Software under the terms of the version of + the License under which You originally received the Covered Software, or + under the terms of any subsequent version published by the license + steward. + +10.3. Modified Versions + + If you create software not governed by this License, and you want to + create a new license for such software, you may create and use a modified + version of this License if you rename the license and remove any + references to the name of the license steward (except to note that such + modified license differs from this License). + +10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses + If You choose to distribute Source Code Form that is Incompatible With + Secondary Licenses under the terms of this version of the License, the + notice described in Exhibit B of this License must be attached. + +Exhibit A - Source Code Form License Notice + + This Source Code Form is subject to the + terms of the Mozilla Public License, v. + 2.0. If a copy of the MPL was not + distributed with this file, You can + obtain one at + http://mozilla.org/MPL/2.0/. + +If it is not possible or desirable to put the notice in a particular file, then +You may include the notice in a location (such as a LICENSE file in a relevant +directory) where a recipient would be likely to look for such a notice. + +You may add additional accurate notices of copyright ownership. + +Exhibit B - “Incompatible With Secondary Licenses” Notice + + This Source Code Form is “Incompatible + With Secondary Licenses”, as defined by + the Mozilla Public License, v. 2.0. + diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/serf/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/serf/LICENSE new file mode 100644 index 0000000..c33dcc7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/serf/LICENSE @@ -0,0 +1,354 @@ +Mozilla Public License, version 2.0 + +1. Definitions + +1.1. “Contributor” + + means each individual or legal entity that creates, contributes to the + creation of, or owns Covered Software. + +1.2. “Contributor Version” + + means the combination of the Contributions of others (if any) used by a + Contributor and that particular Contributor’s Contribution. + +1.3. “Contribution” + + means Covered Software of a particular Contributor. + +1.4. “Covered Software” + + means Source Code Form to which the initial Contributor has attached the + notice in Exhibit A, the Executable Form of such Source Code Form, and + Modifications of such Source Code Form, in each case including portions + thereof. + +1.5. “Incompatible With Secondary Licenses” + means + + a. that the initial Contributor has attached the notice described in + Exhibit B to the Covered Software; or + + b. that the Covered Software was made available under the terms of version + 1.1 or earlier of the License, but not also under the terms of a + Secondary License. + +1.6. “Executable Form” + + means any form of the work other than Source Code Form. + +1.7. “Larger Work” + + means a work that combines Covered Software with other material, in a separate + file or files, that is not Covered Software. + +1.8. “License” + + means this document. + +1.9. “Licensable” + + means having the right to grant, to the maximum extent possible, whether at the + time of the initial grant or subsequently, any and all of the rights conveyed by + this License. + +1.10. “Modifications” + + means any of the following: + + a. any file in Source Code Form that results from an addition to, deletion + from, or modification of the contents of Covered Software; or + + b. any new file in Source Code Form that contains any Covered Software. + +1.11. “Patent Claims” of a Contributor + + means any patent claim(s), including without limitation, method, process, + and apparatus claims, in any patent Licensable by such Contributor that + would be infringed, but for the grant of the License, by the making, + using, selling, offering for sale, having made, import, or transfer of + either its Contributions or its Contributor Version. + +1.12. “Secondary License” + + means either the GNU General Public License, Version 2.0, the GNU Lesser + General Public License, Version 2.1, the GNU Affero General Public + License, Version 3.0, or any later versions of those licenses. + +1.13. “Source Code Form” + + means the form of the work preferred for making modifications. + +1.14. “You” (or “Your”) + + means an individual or a legal entity exercising rights under this + License. For legal entities, “You” includes any entity that controls, is + controlled by, or is under common control with You. For purposes of this + definition, “control” means (a) the power, direct or indirect, to cause + the direction or management of such entity, whether by contract or + otherwise, or (b) ownership of more than fifty percent (50%) of the + outstanding shares or beneficial ownership of such entity. + + +2. License Grants and Conditions + +2.1. Grants + + Each Contributor hereby grants You a world-wide, royalty-free, + non-exclusive license: + + a. under intellectual property rights (other than patent or trademark) + Licensable by such Contributor to use, reproduce, make available, + modify, display, perform, distribute, and otherwise exploit its + Contributions, either on an unmodified basis, with Modifications, or as + part of a Larger Work; and + + b. under Patent Claims of such Contributor to make, use, sell, offer for + sale, have made, import, and otherwise transfer either its Contributions + or its Contributor Version. + +2.2. Effective Date + + The licenses granted in Section 2.1 with respect to any Contribution become + effective for each Contribution on the date the Contributor first distributes + such Contribution. + +2.3. Limitations on Grant Scope + + The licenses granted in this Section 2 are the only rights granted under this + License. No additional rights or licenses will be implied from the distribution + or licensing of Covered Software under this License. Notwithstanding Section + 2.1(b) above, no patent license is granted by a Contributor: + + a. for any code that a Contributor has removed from Covered Software; or + + b. for infringements caused by: (i) Your and any other third party’s + modifications of Covered Software, or (ii) the combination of its + Contributions with other software (except as part of its Contributor + Version); or + + c. under Patent Claims infringed by Covered Software in the absence of its + Contributions. + + This License does not grant any rights in the trademarks, service marks, or + logos of any Contributor (except as may be necessary to comply with the + notice requirements in Section 3.4). + +2.4. Subsequent Licenses + + No Contributor makes additional grants as a result of Your choice to + distribute the Covered Software under a subsequent version of this License + (see Section 10.2) or under the terms of a Secondary License (if permitted + under the terms of Section 3.3). + +2.5. Representation + + Each Contributor represents that the Contributor believes its Contributions + are its original creation(s) or it has sufficient rights to grant the + rights to its Contributions conveyed by this License. + +2.6. Fair Use + + This License is not intended to limit any rights You have under applicable + copyright doctrines of fair use, fair dealing, or other equivalents. + +2.7. Conditions + + Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in + Section 2.1. + + +3. Responsibilities + +3.1. Distribution of Source Form + + All distribution of Covered Software in Source Code Form, including any + Modifications that You create or to which You contribute, must be under the + terms of this License. You must inform recipients that the Source Code Form + of the Covered Software is governed by the terms of this License, and how + they can obtain a copy of this License. You may not attempt to alter or + restrict the recipients’ rights in the Source Code Form. + +3.2. Distribution of Executable Form + + If You distribute Covered Software in Executable Form then: + + a. such Covered Software must also be made available in Source Code Form, + as described in Section 3.1, and You must inform recipients of the + Executable Form how they can obtain a copy of such Source Code Form by + reasonable means in a timely manner, at a charge no more than the cost + of distribution to the recipient; and + + b. You may distribute such Executable Form under the terms of this License, + or sublicense it under different terms, provided that the license for + the Executable Form does not attempt to limit or alter the recipients’ + rights in the Source Code Form under this License. + +3.3. Distribution of a Larger Work + + You may create and distribute a Larger Work under terms of Your choice, + provided that You also comply with the requirements of this License for the + Covered Software. If the Larger Work is a combination of Covered Software + with a work governed by one or more Secondary Licenses, and the Covered + Software is not Incompatible With Secondary Licenses, this License permits + You to additionally distribute such Covered Software under the terms of + such Secondary License(s), so that the recipient of the Larger Work may, at + their option, further distribute the Covered Software under the terms of + either this License or such Secondary License(s). + +3.4. Notices + + You may not remove or alter the substance of any license notices (including + copyright notices, patent notices, disclaimers of warranty, or limitations + of liability) contained within the Source Code Form of the Covered + Software, except that You may alter any license notices to the extent + required to remedy known factual inaccuracies. + +3.5. Application of Additional Terms + + You may choose to offer, and to charge a fee for, warranty, support, + indemnity or liability obligations to one or more recipients of Covered + Software. However, You may do so only on Your own behalf, and not on behalf + of any Contributor. You must make it absolutely clear that any such + warranty, support, indemnity, or liability obligation is offered by You + alone, and You hereby agree to indemnify every Contributor for any + liability incurred by such Contributor as a result of warranty, support, + indemnity or liability terms You offer. You may include additional + disclaimers of warranty and limitations of liability specific to any + jurisdiction. + +4. Inability to Comply Due to Statute or Regulation + + If it is impossible for You to comply with any of the terms of this License + with respect to some or all of the Covered Software due to statute, judicial + order, or regulation then You must: (a) comply with the terms of this License + to the maximum extent possible; and (b) describe the limitations and the code + they affect. Such description must be placed in a text file included with all + distributions of the Covered Software under this License. Except to the + extent prohibited by statute or regulation, such description must be + sufficiently detailed for a recipient of ordinary skill to be able to + understand it. + +5. Termination + +5.1. The rights granted under this License will terminate automatically if You + fail to comply with any of its terms. However, if You become compliant, + then the rights granted under this License from a particular Contributor + are reinstated (a) provisionally, unless and until such Contributor + explicitly and finally terminates Your grants, and (b) on an ongoing basis, + if such Contributor fails to notify You of the non-compliance by some + reasonable means prior to 60 days after You have come back into compliance. + Moreover, Your grants from a particular Contributor are reinstated on an + ongoing basis if such Contributor notifies You of the non-compliance by + some reasonable means, this is the first time You have received notice of + non-compliance with this License from such Contributor, and You become + compliant prior to 30 days after Your receipt of the notice. + +5.2. If You initiate litigation against any entity by asserting a patent + infringement claim (excluding declaratory judgment actions, counter-claims, + and cross-claims) alleging that a Contributor Version directly or + indirectly infringes any patent, then the rights granted to You by any and + all Contributors for the Covered Software under Section 2.1 of this License + shall terminate. + +5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user + license agreements (excluding distributors and resellers) which have been + validly granted by You or Your distributors under this License prior to + termination shall survive termination. + +6. Disclaimer of Warranty + + Covered Software is provided under this License on an “as is” basis, without + warranty of any kind, either expressed, implied, or statutory, including, + without limitation, warranties that the Covered Software is free of defects, + merchantable, fit for a particular purpose or non-infringing. The entire + risk as to the quality and performance of the Covered Software is with You. + Should any Covered Software prove defective in any respect, You (not any + Contributor) assume the cost of any necessary servicing, repair, or + correction. This disclaimer of warranty constitutes an essential part of this + License. No use of any Covered Software is authorized under this License + except under this disclaimer. + +7. Limitation of Liability + + Under no circumstances and under no legal theory, whether tort (including + negligence), contract, or otherwise, shall any Contributor, or anyone who + distributes Covered Software as permitted above, be liable to You for any + direct, indirect, special, incidental, or consequential damages of any + character including, without limitation, damages for lost profits, loss of + goodwill, work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses, even if such party shall have been + informed of the possibility of such damages. This limitation of liability + shall not apply to liability for death or personal injury resulting from such + party’s negligence to the extent applicable law prohibits such limitation. + Some jurisdictions do not allow the exclusion or limitation of incidental or + consequential damages, so this exclusion and limitation may not apply to You. + +8. Litigation + + Any litigation relating to this License may be brought only in the courts of + a jurisdiction where the defendant maintains its principal place of business + and such litigation shall be governed by laws of that jurisdiction, without + reference to its conflict-of-law provisions. Nothing in this Section shall + prevent a party’s ability to bring cross-claims or counter-claims. + +9. Miscellaneous + + This License represents the complete agreement concerning the subject matter + hereof. If any provision of this License is held to be unenforceable, such + provision shall be reformed only to the extent necessary to make it + enforceable. Any law or regulation which provides that the language of a + contract shall be construed against the drafter shall not be used to construe + this License against a Contributor. + + +10. Versions of the License + +10.1. New Versions + + Mozilla Foundation is the license steward. Except as provided in Section + 10.3, no one other than the license steward has the right to modify or + publish new versions of this License. Each version will be given a + distinguishing version number. + +10.2. Effect of New Versions + + You may distribute the Covered Software under the terms of the version of + the License under which You originally received the Covered Software, or + under the terms of any subsequent version published by the license + steward. + +10.3. Modified Versions + + If you create software not governed by this License, and you want to + create a new license for such software, you may create and use a modified + version of this License if you rename the license and remove any + references to the name of the license steward (except to note that such + modified license differs from this License). + +10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses + If You choose to distribute Source Code Form that is Incompatible With + Secondary Licenses under the terms of this version of the License, the + notice described in Exhibit B of this License must be attached. + +Exhibit A - Source Code Form License Notice + + This Source Code Form is subject to the + terms of the Mozilla Public License, v. + 2.0. If a copy of the MPL was not + distributed with this file, You can + obtain one at + http://mozilla.org/MPL/2.0/. + +If it is not possible or desirable to put the notice in a particular file, then +You may include the notice in a location (such as a LICENSE file in a relevant +directory) where a recipient would be likely to look for such a notice. + +You may add additional accurate notices of copyright ownership. + +Exhibit B - “Incompatible With Secondary Licenses” Notice + + This Source Code Form is “Incompatible + With Secondary Licenses”, as defined by + the Mozilla Public License, v. 2.0. + diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/serf/website/LICENSE.md b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/serf/website/LICENSE.md new file mode 100644 index 0000000..36c29d7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/hashicorp/serf/website/LICENSE.md @@ -0,0 +1,10 @@ +# Proprietary License + +This license is temporary while a more official one is drafted. However, +this should make it clear: + +* The text contents of this website are MPL 2.0 licensed. + +* The design contents of this website are proprietary and may not be reproduced + or reused in any way other than to run the Serf website locally. The license + for the design is owned solely by HashiCorp, Inc. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/kr/pty/License b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/kr/pty/License new file mode 100644 index 0000000..6b7558b --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/kr/pty/License @@ -0,0 +1,23 @@ +Copyright (c) 2011 Keith Rarick + +Permission is hereby granted, free of charge, to any person +obtaining a copy of this software and associated +documentation files (the "Software"), to deal in the +Software without restriction, including without limitation +the rights to use, copy, modify, merge, publish, distribute, +sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, +subject to the following conditions: + +The above copyright notice and this permission notice shall +be included in all copies or substantial portions of the +Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY +KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE +WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR +PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS +OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR +OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/mattn/go-sqlite3/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/mattn/go-sqlite3/LICENSE new file mode 100644 index 0000000..ca458bb --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/mattn/go-sqlite3/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2014 Yasuhiro Matsumoto + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. 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Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + Copyright 2014 Docker, Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/samuel/go-zookeeper/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/samuel/go-zookeeper/LICENSE new file mode 100644 index 0000000..bc00498 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/samuel/go-zookeeper/LICENSE @@ -0,0 +1,25 @@ +Copyright (c) 2013, Samuel Stauffer +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +* Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. +* Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. +* Neither the name of the author nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/syndtr/gocapability/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/syndtr/gocapability/LICENSE new file mode 100644 index 0000000..80dd96d --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/syndtr/gocapability/LICENSE @@ -0,0 +1,24 @@ +Copyright 2013 Suryandaru Triandana +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright +notice, this list of conditions and the following disclaimer in the +documentation and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/tchap/go-patricia/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/tchap/go-patricia/LICENSE new file mode 100644 index 0000000..e50d398 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/tchap/go-patricia/LICENSE @@ -0,0 +1,20 @@ +The MIT License (MIT) + +Copyright (c) 2014 The AUTHORS + +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of +the Software, and to permit persons to whom the Software is furnished to do so, +subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS +FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR +COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER +IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/tinylib/msgp/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/tinylib/msgp/LICENSE new file mode 100644 index 0000000..14d6042 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/tinylib/msgp/LICENSE @@ -0,0 +1,8 @@ +Copyright (c) 2014 Philip Hofer +Portions Copyright (c) 2009 The Go Authors (license at http://golang.org) where indicated + +Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. \ No newline at end of file diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/ugorji/go/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/ugorji/go/LICENSE new file mode 100644 index 0000000..95a0f05 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/ugorji/go/LICENSE @@ -0,0 +1,22 @@ +The MIT License (MIT) + +Copyright (c) 2012-2015 Ugorji Nwoke. +All rights reserved. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/vaughan0/go-ini/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/vaughan0/go-ini/LICENSE new file mode 100644 index 0000000..968b453 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/vaughan0/go-ini/LICENSE @@ -0,0 +1,14 @@ +Copyright (c) 2013 Vaughan Newton + +Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated +documentation files (the "Software"), to deal in the Software without restriction, including without limitation the +rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit +persons to whom the Software is furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the +Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE +WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR +COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/vbatts/tar-split/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/vbatts/tar-split/LICENSE new file mode 100644 index 0000000..8ba5491 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/vbatts/tar-split/LICENSE @@ -0,0 +1,19 @@ +Copyright (c) 2015 Vincent Batts, Raleigh, NC, USA + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/vishvananda/netlink/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/vishvananda/netlink/LICENSE new file mode 100644 index 0000000..9f64db8 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/vishvananda/netlink/LICENSE @@ -0,0 +1,192 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + Copyright 2014 Vishvananda Ishaya. + Copyright 2014 Docker, Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/vishvananda/netns/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/vishvananda/netns/LICENSE new file mode 100644 index 0000000..9f64db8 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/github.com/vishvananda/netns/LICENSE @@ -0,0 +1,192 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + Copyright 2014 Vishvananda Ishaya. + Copyright 2014 Docker, Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/golang.org/x/net/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/golang.org/x/net/LICENSE new file mode 100644 index 0000000..6a66aea --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/golang.org/x/net/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2009 The Go Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/docker/docker/vendor/src/gopkg.in/fsnotify.v1/LICENSE b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/gopkg.in/fsnotify.v1/LICENSE new file mode 100644 index 0000000..f21e540 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/docker/vendor/src/gopkg.in/fsnotify.v1/LICENSE @@ -0,0 +1,28 @@ +Copyright (c) 2012 The Go Authors. All rights reserved. +Copyright (c) 2012 fsnotify Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/docker/go-units/CONTRIBUTING.md b/Godeps/_workspace/src/github.com/docker/go-units/CONTRIBUTING.md new file mode 100644 index 0000000..9ea86d7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/go-units/CONTRIBUTING.md @@ -0,0 +1,67 @@ +# Contributing to go-units + +Want to hack on go-units? Awesome! Here are instructions to get you started. + +go-units is a part of the [Docker](https://www.docker.com) project, and follows +the same rules and principles. If you're already familiar with the way +Docker does things, you'll feel right at home. + +Otherwise, go read Docker's +[contributions guidelines](https://github.com/docker/docker/blob/master/CONTRIBUTING.md), +[issue triaging](https://github.com/docker/docker/blob/master/project/ISSUE-TRIAGE.md), +[review process](https://github.com/docker/docker/blob/master/project/REVIEWING.md) and +[branches and tags](https://github.com/docker/docker/blob/master/project/BRANCHES-AND-TAGS.md). + +### Sign your work + +The sign-off is a simple line at the end of the explanation for the patch. Your +signature certifies that you wrote the patch or otherwise have the right to pass +it on as an open-source patch. The rules are pretty simple: if you can certify +the below (from [developercertificate.org](http://developercertificate.org/)): + +``` +Developer Certificate of Origin +Version 1.1 + +Copyright (C) 2004, 2006 The Linux Foundation and its contributors. +660 York Street, Suite 102, +San Francisco, CA 94110 USA + +Everyone is permitted to copy and distribute verbatim copies of this +license document, but changing it is not allowed. + +Developer's Certificate of Origin 1.1 + +By making a contribution to this project, I certify that: + +(a) The contribution was created in whole or in part by me and I + have the right to submit it under the open source license + indicated in the file; or + +(b) The contribution is based upon previous work that, to the best + of my knowledge, is covered under an appropriate open source + license and I have the right under that license to submit that + work with modifications, whether created in whole or in part + by me, under the same open source license (unless I am + permitted to submit under a different license), as indicated + in the file; or + +(c) The contribution was provided directly to me by some other + person who certified (a), (b) or (c) and I have not modified + it. + +(d) I understand and agree that this project and the contribution + are public and that a record of the contribution (including all + personal information I submit with it, including my sign-off) is + maintained indefinitely and may be redistributed consistent with + this project or the open source license(s) involved. +``` + +Then you just add a line to every git commit message: + + Signed-off-by: Joe Smith + +Use your real name (sorry, no pseudonyms or anonymous contributions.) + +If you set your `user.name` and `user.email` git configs, you can sign your +commit automatically with `git commit -s`. diff --git a/Godeps/_workspace/src/github.com/docker/go-units/LICENSE.code b/Godeps/_workspace/src/github.com/docker/go-units/LICENSE.code new file mode 100644 index 0000000..b55b37b --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/go-units/LICENSE.code @@ -0,0 +1,191 @@ + + Apache License + Version 2.0, January 2004 + https://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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For +the avoidance of doubt, this paragraph does not form part of the public +licenses. + +Creative Commons may be contacted at creativecommons.org. diff --git a/Godeps/_workspace/src/github.com/docker/go-units/MAINTAINERS b/Godeps/_workspace/src/github.com/docker/go-units/MAINTAINERS new file mode 100644 index 0000000..477be8b --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/go-units/MAINTAINERS @@ -0,0 +1,27 @@ +# go-connections maintainers file +# +# This file describes who runs the docker/go-connections project and how. +# This is a living document - if you see something out of date or missing, speak up! +# +# It is structured to be consumable by both humans and programs. +# To extract its contents programmatically, use any TOML-compliant parser. +# +# This file is compiled into the MAINTAINERS file in docker/opensource. +# +[Org] + [Org."Core maintainers"] + people = [ + "calavera", + ] + +[people] + +# A reference list of all people associated with the project. +# All other sections should refer to people by their canonical key +# in the people section. + + # ADD YOURSELF HERE IN ALPHABETICAL ORDER + [people.calavera] + Name = "David Calavera" + Email = "david.calavera@gmail.com" + GitHub = "calavera" diff --git a/Godeps/_workspace/src/github.com/docker/go-units/README.md b/Godeps/_workspace/src/github.com/docker/go-units/README.md new file mode 100644 index 0000000..3ce4d79 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/go-units/README.md @@ -0,0 +1,18 @@ +[![GoDoc](https://godoc.org/github.com/docker/go-units?status.svg)](https://godoc.org/github.com/docker/go-units) + +# Introduction + +go-units is a library to transform human friendly measurements into machine friendly values. + +## Usage + +See the [docs in godoc](https://godoc.org/github.com/docker/go-units) for examples and documentation. + +## Copyright and license + +Copyright © 2015 Docker, Inc. All rights reserved, except as follows. Code +is released under the Apache 2.0 license. The README.md file, and files in the +"docs" folder are licensed under the Creative Commons Attribution 4.0 +International License under the terms and conditions set forth in the file +"LICENSE.docs". You may obtain a duplicate copy of the same license, titled +CC-BY-SA-4.0, at http://creativecommons.org/licenses/by/4.0/. diff --git a/Godeps/_workspace/src/github.com/docker/go-units/circle.yml b/Godeps/_workspace/src/github.com/docker/go-units/circle.yml new file mode 100644 index 0000000..9043b35 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/go-units/circle.yml @@ -0,0 +1,11 @@ +dependencies: + post: + # install golint + - go get github.com/golang/lint/golint + +test: + pre: + # run analysis before tests + - go vet ./... + - test -z "$(golint ./... | tee /dev/stderr)" + - test -z "$(gofmt -s -l . | tee /dev/stderr)" diff --git a/Godeps/_workspace/src/github.com/docker/go-units/duration.go b/Godeps/_workspace/src/github.com/docker/go-units/duration.go new file mode 100644 index 0000000..c219a8a --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/go-units/duration.go @@ -0,0 +1,33 @@ +// Package units provides helper function to parse and print size and time units +// in human-readable format. +package units + +import ( + "fmt" + "time" +) + +// HumanDuration returns a human-readable approximation of a duration +// (eg. "About a minute", "4 hours ago", etc.). +func HumanDuration(d time.Duration) string { + if seconds := int(d.Seconds()); seconds < 1 { + return "Less than a second" + } else if seconds < 60 { + return fmt.Sprintf("%d seconds", seconds) + } else if minutes := int(d.Minutes()); minutes == 1 { + return "About a minute" + } else if minutes < 60 { + return fmt.Sprintf("%d minutes", minutes) + } else if hours := int(d.Hours()); hours == 1 { + return "About an hour" + } else if hours < 48 { + return fmt.Sprintf("%d hours", hours) + } else if hours < 24*7*2 { + return fmt.Sprintf("%d days", hours/24) + } else if hours < 24*30*3 { + return fmt.Sprintf("%d weeks", hours/24/7) + } else if hours < 24*365*2 { + return fmt.Sprintf("%d months", hours/24/30) + } + return fmt.Sprintf("%d years", int(d.Hours())/24/365) +} diff --git a/Godeps/_workspace/src/github.com/docker/go-units/size.go b/Godeps/_workspace/src/github.com/docker/go-units/size.go new file mode 100644 index 0000000..3b59daf --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/go-units/size.go @@ -0,0 +1,95 @@ +package units + +import ( + "fmt" + "regexp" + "strconv" + "strings" +) + +// See: http://en.wikipedia.org/wiki/Binary_prefix +const ( + // Decimal + + KB = 1000 + MB = 1000 * KB + GB = 1000 * MB + TB = 1000 * GB + PB = 1000 * TB + + // Binary + + KiB = 1024 + MiB = 1024 * KiB + GiB = 1024 * MiB + TiB = 1024 * GiB + PiB = 1024 * TiB +) + +type unitMap map[string]int64 + +var ( + decimalMap = unitMap{"k": KB, "m": MB, "g": GB, "t": TB, "p": PB} + binaryMap = unitMap{"k": KiB, "m": MiB, "g": GiB, "t": TiB, "p": PiB} + sizeRegex = regexp.MustCompile(`^(\d+)([kKmMgGtTpP])?[bB]?$`) +) + +var decimapAbbrs = []string{"B", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"} +var binaryAbbrs = []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"} + +// CustomSize returns a human-readable approximation of a size +// using custom format. +func CustomSize(format string, size float64, base float64, _map []string) string { + i := 0 + for size >= base { + size = size / base + i++ + } + return fmt.Sprintf(format, size, _map[i]) +} + +// HumanSize returns a human-readable approximation of a size +// capped at 4 valid numbers (eg. "2.746 MB", "796 KB"). +func HumanSize(size float64) string { + return CustomSize("%.4g %s", size, 1000.0, decimapAbbrs) +} + +// BytesSize returns a human-readable size in bytes, kibibytes, +// mebibytes, gibibytes, or tebibytes (eg. "44kiB", "17MiB"). +func BytesSize(size float64) string { + return CustomSize("%.4g %s", size, 1024.0, binaryAbbrs) +} + +// FromHumanSize returns an integer from a human-readable specification of a +// size using SI standard (eg. "44kB", "17MB"). +func FromHumanSize(size string) (int64, error) { + return parseSize(size, decimalMap) +} + +// RAMInBytes parses a human-readable string representing an amount of RAM +// in bytes, kibibytes, mebibytes, gibibytes, or tebibytes and +// returns the number of bytes, or -1 if the string is unparseable. +// Units are case-insensitive, and the 'b' suffix is optional. +func RAMInBytes(size string) (int64, error) { + return parseSize(size, binaryMap) +} + +// Parses the human-readable size string into the amount it represents. +func parseSize(sizeStr string, uMap unitMap) (int64, error) { + matches := sizeRegex.FindStringSubmatch(sizeStr) + if len(matches) != 3 { + return -1, fmt.Errorf("invalid size: '%s'", sizeStr) + } + + size, err := strconv.ParseInt(matches[1], 10, 0) + if err != nil { + return -1, err + } + + unitPrefix := strings.ToLower(matches[2]) + if mul, ok := uMap[unitPrefix]; ok { + size *= mul + } + + return size, nil +} diff --git a/Godeps/_workspace/src/github.com/docker/go-units/ulimit.go b/Godeps/_workspace/src/github.com/docker/go-units/ulimit.go new file mode 100644 index 0000000..5ac7fd8 --- /dev/null +++ b/Godeps/_workspace/src/github.com/docker/go-units/ulimit.go @@ -0,0 +1,118 @@ +package units + +import ( + "fmt" + "strconv" + "strings" +) + +// Ulimit is a human friendly version of Rlimit. +type Ulimit struct { + Name string + Hard int64 + Soft int64 +} + +// Rlimit specifies the resource limits, such as max open files. +type Rlimit struct { + Type int `json:"type,omitempty"` + Hard uint64 `json:"hard,omitempty"` + Soft uint64 `json:"soft,omitempty"` +} + +const ( + // magic numbers for making the syscall + // some of these are defined in the syscall package, but not all. + // Also since Windows client doesn't get access to the syscall package, need to + // define these here + rlimitAs = 9 + rlimitCore = 4 + rlimitCPU = 0 + rlimitData = 2 + rlimitFsize = 1 + rlimitLocks = 10 + rlimitMemlock = 8 + rlimitMsgqueue = 12 + rlimitNice = 13 + rlimitNofile = 7 + rlimitNproc = 6 + rlimitRss = 5 + rlimitRtprio = 14 + rlimitRttime = 15 + rlimitSigpending = 11 + rlimitStack = 3 +) + +var ulimitNameMapping = map[string]int{ + //"as": rlimitAs, // Disabled since this doesn't seem usable with the way Docker inits a container. + "core": rlimitCore, + "cpu": rlimitCPU, + "data": rlimitData, + "fsize": rlimitFsize, + "locks": rlimitLocks, + "memlock": rlimitMemlock, + "msgqueue": rlimitMsgqueue, + "nice": rlimitNice, + "nofile": rlimitNofile, + "nproc": rlimitNproc, + "rss": rlimitRss, + "rtprio": rlimitRtprio, + "rttime": rlimitRttime, + "sigpending": rlimitSigpending, + "stack": rlimitStack, +} + +// ParseUlimit parses and returns a Ulimit from the specified string. +func ParseUlimit(val string) (*Ulimit, error) { + parts := strings.SplitN(val, "=", 2) + if len(parts) != 2 { + return nil, fmt.Errorf("invalid ulimit argument: %s", val) + } + + if _, exists := ulimitNameMapping[parts[0]]; !exists { + return nil, fmt.Errorf("invalid ulimit type: %s", parts[0]) + } + + var ( + soft int64 + hard = &soft // default to soft in case no hard was set + temp int64 + err error + ) + switch limitVals := strings.Split(parts[1], ":"); len(limitVals) { + case 2: + temp, err = strconv.ParseInt(limitVals[1], 10, 64) + if err != nil { + return nil, err + } + hard = &temp + fallthrough + case 1: + soft, err = strconv.ParseInt(limitVals[0], 10, 64) + if err != nil { + return nil, err + } + default: + return nil, fmt.Errorf("too many limit value arguments - %s, can only have up to two, `soft[:hard]`", parts[1]) + } + + if soft > *hard { + return nil, fmt.Errorf("ulimit soft limit must be less than or equal to hard limit: %d > %d", soft, *hard) + } + + return &Ulimit{Name: parts[0], Soft: soft, Hard: *hard}, nil +} + +// GetRlimit returns the RLimit corresponding to Ulimit. +func (u *Ulimit) GetRlimit() (*Rlimit, error) { + t, exists := ulimitNameMapping[u.Name] + if !exists { + return nil, fmt.Errorf("invalid ulimit name %s", u.Name) + } + + return &Rlimit{Type: t, Soft: uint64(u.Soft), Hard: uint64(u.Hard)}, nil +} + +func (u *Ulimit) String() string { + return fmt.Sprintf("%s=%d:%d", u.Name, u.Soft, u.Hard) +} diff --git a/Godeps/_workspace/src/github.com/eapache/go-resiliency/LICENSE b/Godeps/_workspace/src/github.com/eapache/go-resiliency/LICENSE new file mode 100644 index 0000000..698a3f5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/eapache/go-resiliency/LICENSE @@ -0,0 +1,22 @@ +The MIT License (MIT) + +Copyright (c) 2014 Evan Huus + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. + diff --git a/Godeps/_workspace/src/github.com/eapache/go-resiliency/breaker/README.md b/Godeps/_workspace/src/github.com/eapache/go-resiliency/breaker/README.md new file mode 100644 index 0000000..2d1b3d9 --- /dev/null +++ b/Godeps/_workspace/src/github.com/eapache/go-resiliency/breaker/README.md @@ -0,0 +1,34 @@ +circuit-breaker +=============== + +[![Build Status](https://travis-ci.org/eapache/go-resiliency.svg?branch=master)](https://travis-ci.org/eapache/go-resiliency) +[![GoDoc](https://godoc.org/github.com/eapache/go-resiliency/breaker?status.svg)](https://godoc.org/github.com/eapache/go-resiliency/breaker) +[![Code of Conduct](https://img.shields.io/badge/code%20of%20conduct-active-blue.svg)](https://eapache.github.io/conduct.html) + +The circuit-breaker resiliency pattern for golang. + +Creating a breaker takes three parameters: +- error threshold (for opening the breaker) +- success threshold (for closing the breaker) +- timeout (how long to keep the breaker open) + +```go +b := breaker.New(3, 1, 5*time.Second) + +for { + result := b.Run(func() error { + // communicate with some external service and + // return an error if the communication failed + return nil + }) + + switch result { + case nil: + // success! + case breaker.ErrBreakerOpen: + // our function wasn't run because the breaker was open + default: + // some other error + } +} +``` diff --git a/Godeps/_workspace/src/github.com/eapache/go-resiliency/breaker/breaker.go b/Godeps/_workspace/src/github.com/eapache/go-resiliency/breaker/breaker.go new file mode 100644 index 0000000..f88ca72 --- /dev/null +++ b/Godeps/_workspace/src/github.com/eapache/go-resiliency/breaker/breaker.go @@ -0,0 +1,161 @@ +// Package breaker implements the circuit-breaker resiliency pattern for Go. +package breaker + +import ( + "errors" + "sync" + "sync/atomic" + "time" +) + +// ErrBreakerOpen is the error returned from Run() when the function is not executed +// because the breaker is currently open. +var ErrBreakerOpen = errors.New("circuit breaker is open") + +const ( + closed uint32 = iota + open + halfOpen +) + +// Breaker implements the circuit-breaker resiliency pattern +type Breaker struct { + errorThreshold, successThreshold int + timeout time.Duration + + lock sync.Mutex + state uint32 + errors, successes int + lastError time.Time +} + +// New constructs a new circuit-breaker that starts closed. +// From closed, the breaker opens if "errorThreshold" errors are seen +// without an error-free period of at least "timeout". From open, the +// breaker half-closes after "timeout". From half-open, the breaker closes +// after "successThreshold" consecutive successes, or opens on a single error. +func New(errorThreshold, successThreshold int, timeout time.Duration) *Breaker { + return &Breaker{ + errorThreshold: errorThreshold, + successThreshold: successThreshold, + timeout: timeout, + } +} + +// Run will either return ErrBreakerOpen immediately if the circuit-breaker is +// already open, or it will run the given function and pass along its return +// value. It is safe to call Run concurrently on the same Breaker. +func (b *Breaker) Run(work func() error) error { + state := atomic.LoadUint32(&b.state) + + if state == open { + return ErrBreakerOpen + } + + return b.doWork(state, work) +} + +// Go will either return ErrBreakerOpen immediately if the circuit-breaker is +// already open, or it will run the given function in a separate goroutine. +// If the function is run, Go will return nil immediately, and will *not* return +// the return value of the function. It is safe to call Go concurrently on the +// same Breaker. +func (b *Breaker) Go(work func() error) error { + state := atomic.LoadUint32(&b.state) + + if state == open { + return ErrBreakerOpen + } + + // errcheck complains about ignoring the error return value, but + // that's on purpose; if you want an error from a goroutine you have to + // get it over a channel or something + go b.doWork(state, work) + + return nil +} + +func (b *Breaker) doWork(state uint32, work func() error) error { + var panicValue interface{} + + result := func() error { + defer func() { + panicValue = recover() + }() + return work() + }() + + if result == nil && panicValue == nil && state == closed { + // short-circuit the normal, success path without contending + // on the lock + return nil + } + + // oh well, I guess we have to contend on the lock + b.processResult(result, panicValue) + + if panicValue != nil { + // as close as Go lets us come to a "rethrow" although unfortunately + // we lose the original panicing location + panic(panicValue) + } + + return result +} + +func (b *Breaker) processResult(result error, panicValue interface{}) { + b.lock.Lock() + defer b.lock.Unlock() + + if result == nil && panicValue == nil { + if b.state == halfOpen { + b.successes++ + if b.successes == b.successThreshold { + b.closeBreaker() + } + } + } else { + if b.errors > 0 { + expiry := b.lastError.Add(b.timeout) + if time.Now().After(expiry) { + b.errors = 0 + } + } + + switch b.state { + case closed: + b.errors++ + if b.errors == b.errorThreshold { + b.openBreaker() + } else { + b.lastError = time.Now() + } + case halfOpen: + b.openBreaker() + } + } +} + +func (b *Breaker) openBreaker() { + b.changeState(open) + go b.timer() +} + +func (b *Breaker) closeBreaker() { + b.changeState(closed) +} + +func (b *Breaker) timer() { + time.Sleep(b.timeout) + + b.lock.Lock() + defer b.lock.Unlock() + + b.changeState(halfOpen) +} + +func (b *Breaker) changeState(newState uint32) { + b.errors = 0 + b.successes = 0 + atomic.StoreUint32(&b.state, newState) +} diff --git a/Godeps/_workspace/src/github.com/eapache/queue/.gitignore b/Godeps/_workspace/src/github.com/eapache/queue/.gitignore new file mode 100644 index 0000000..8365624 --- /dev/null +++ b/Godeps/_workspace/src/github.com/eapache/queue/.gitignore @@ -0,0 +1,23 @@ +# Compiled Object files, Static and Dynamic libs (Shared Objects) +*.o +*.a +*.so + +# Folders +_obj +_test + +# Architecture specific extensions/prefixes +*.[568vq] +[568vq].out + +*.cgo1.go +*.cgo2.c +_cgo_defun.c +_cgo_gotypes.go +_cgo_export.* + +_testmain.go + +*.exe +*.test diff --git a/Godeps/_workspace/src/github.com/eapache/queue/.travis.yml b/Godeps/_workspace/src/github.com/eapache/queue/.travis.yml new file mode 100644 index 0000000..235a40a --- /dev/null +++ b/Godeps/_workspace/src/github.com/eapache/queue/.travis.yml @@ -0,0 +1,7 @@ +language: go +sudo: false + +go: + - 1.2 + - 1.3 + - 1.4 diff --git a/Godeps/_workspace/src/github.com/eapache/queue/LICENSE b/Godeps/_workspace/src/github.com/eapache/queue/LICENSE new file mode 100644 index 0000000..d5f36db --- /dev/null +++ b/Godeps/_workspace/src/github.com/eapache/queue/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2014 Evan Huus + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. \ No newline at end of file diff --git a/Godeps/_workspace/src/github.com/eapache/queue/README.md b/Godeps/_workspace/src/github.com/eapache/queue/README.md new file mode 100644 index 0000000..8e78233 --- /dev/null +++ b/Godeps/_workspace/src/github.com/eapache/queue/README.md @@ -0,0 +1,16 @@ +Queue +===== + +[![Build Status](https://travis-ci.org/eapache/queue.svg)](https://travis-ci.org/eapache/queue) +[![GoDoc](https://godoc.org/github.com/eapache/queue?status.png)](https://godoc.org/github.com/eapache/queue) +[![Code of Conduct](https://img.shields.io/badge/code%20of%20conduct-active-blue.svg)](https://eapache.github.io/conduct.html) + +A fast Golang queue using a ring-buffer, based on the version suggested by Dariusz Górecki. +Using this instead of other, simpler, queue implementations (slice+append or linked list) provides +substantial memory and time benefits, and fewer GC pauses. + +The queue implemented here is as fast as it is in part because it is *not* thread-safe. + +Follows semantic versioning using https://gopkg.in/ - import from +[`gopkg.in/eapache/queue.v1`](https://gopkg.in/eapache/queue.v1) +for guaranteed API stability. diff --git a/Godeps/_workspace/src/github.com/eapache/queue/queue.go b/Godeps/_workspace/src/github.com/eapache/queue/queue.go new file mode 100644 index 0000000..2dc8d93 --- /dev/null +++ b/Godeps/_workspace/src/github.com/eapache/queue/queue.go @@ -0,0 +1,88 @@ +/* +Package queue provides a fast, ring-buffer queue based on the version suggested by Dariusz Górecki. +Using this instead of other, simpler, queue implementations (slice+append or linked list) provides +substantial memory and time benefits, and fewer GC pauses. + +The queue implemented here is as fast as it is for an additional reason: it is *not* thread-safe. +*/ +package queue + +const minQueueLen = 16 + +// Queue represents a single instance of the queue data structure. +type Queue struct { + buf []interface{} + head, tail, count int +} + +// New constructs and returns a new Queue. +func New() *Queue { + return &Queue{ + buf: make([]interface{}, minQueueLen), + } +} + +// Length returns the number of elements currently stored in the queue. +func (q *Queue) Length() int { + return q.count +} + +// resizes the queue to fit exactly twice its current contents +// this can result in shrinking if the queue is less than half-full +func (q *Queue) resize() { + newBuf := make([]interface{}, q.count*2) + + if q.tail > q.head { + copy(newBuf, q.buf[q.head:q.tail]) + } else { + n := copy(newBuf, q.buf[q.head:]) + copy(newBuf[n:], q.buf[:q.tail]) + } + + q.head = 0 + q.tail = q.count + q.buf = newBuf +} + +// Add puts an element on the end of the queue. +func (q *Queue) Add(elem interface{}) { + if q.count == len(q.buf) { + q.resize() + } + + q.buf[q.tail] = elem + q.tail = (q.tail + 1) % len(q.buf) + q.count++ +} + +// Peek returns the element at the head of the queue. This call panics +// if the queue is empty. +func (q *Queue) Peek() interface{} { + if q.count <= 0 { + panic("queue: Peek() called on empty queue") + } + return q.buf[q.head] +} + +// Get returns the element at index i in the queue. If the index is +// invalid, the call will panic. +func (q *Queue) Get(i int) interface{} { + if i < 0 || i >= q.count { + panic("queue: Get() called with index out of range") + } + return q.buf[(q.head+i)%len(q.buf)] +} + +// Remove removes the element from the front of the queue. If you actually +// want the element, call Peek first. This call panics if the queue is empty. +func (q *Queue) Remove() { + if q.count <= 0 { + panic("queue: Remove() called on empty queue") + } + q.buf[q.head] = nil + q.head = (q.head + 1) % len(q.buf) + q.count-- + if len(q.buf) > minQueueLen && q.count*4 == len(q.buf) { + q.resize() + } +} diff --git a/Godeps/_workspace/src/github.com/elazarl/go-bindata-assetfs/LICENSE b/Godeps/_workspace/src/github.com/elazarl/go-bindata-assetfs/LICENSE new file mode 100644 index 0000000..5782c72 --- /dev/null +++ b/Godeps/_workspace/src/github.com/elazarl/go-bindata-assetfs/LICENSE @@ -0,0 +1,23 @@ +Copyright (c) 2014, Elazar Leibovich +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +* Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. + +* Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/elazarl/go-bindata-assetfs/README.md b/Godeps/_workspace/src/github.com/elazarl/go-bindata-assetfs/README.md new file mode 100644 index 0000000..27ee48f --- /dev/null +++ b/Godeps/_workspace/src/github.com/elazarl/go-bindata-assetfs/README.md @@ -0,0 +1,46 @@ +# go-bindata-assetfs + +Serve embedded files from [jteeuwen/go-bindata](https://github.com/jteeuwen/go-bindata) with `net/http`. + +[GoDoc](http://godoc.org/github.com/elazarl/go-bindata-assetfs) + +### Installation + +Install with + + $ go get github.com/jteeuwen/go-bindata/... + $ go get github.com/elazarl/go-bindata-assetfs/... + +### Creating embedded data + +Usage is identical to [jteeuwen/go-bindata](https://github.com/jteeuwen/go-bindata) usage, +instead of running `go-bindata` run `go-bindata-assetfs`. + +The tool will create a `bindata_assetfs.go` file, which contains the embedded data. + +A typical use case is + + $ go-bindata-assetfs data/... + +### Using assetFS in your code + +The generated file provides an `assetFS()` function that returns a `http.Filesystem` +wrapping the embedded files. What you usually want to do is: + + http.Handle("/", http.FileServer(assetFS())) + +This would run an HTTP server serving the embedded files. + +## Without running binary tool + +You can always just run the `go-bindata` tool, and then + +use + + import "github.com/elazarl/go-bindata-assetfs" + ... + http.Handle("/", + http.FileServer( + &assetfs.AssetFS{Asset: Asset, AssetDir: AssetDir, AssetInfo: AssetInfo, Prefix: "data"})) + +to serve files embedded from the `data` directory. diff --git a/Godeps/_workspace/src/github.com/elazarl/go-bindata-assetfs/assetfs.go b/Godeps/_workspace/src/github.com/elazarl/go-bindata-assetfs/assetfs.go new file mode 100644 index 0000000..9397e58 --- /dev/null +++ b/Godeps/_workspace/src/github.com/elazarl/go-bindata-assetfs/assetfs.go @@ -0,0 +1,158 @@ +package assetfs + +import ( + "bytes" + "errors" + "io" + "io/ioutil" + "net/http" + "os" + "path" + "path/filepath" + "time" +) + +var ( + defaultFileTimestamp = time.Now() +) + +// FakeFile implements os.FileInfo interface for a given path and size +type FakeFile struct { + // Path is the path of this file + Path string + // Dir marks of the path is a directory + Dir bool + // Len is the length of the fake file, zero if it is a directory + Len int64 + // Timestamp is the ModTime of this file + Timestamp time.Time +} + +func (f *FakeFile) Name() string { + _, name := filepath.Split(f.Path) + return name +} + +func (f *FakeFile) Mode() os.FileMode { + mode := os.FileMode(0644) + if f.Dir { + return mode | os.ModeDir + } + return mode +} + +func (f *FakeFile) ModTime() time.Time { + return f.Timestamp +} + +func (f *FakeFile) Size() int64 { + return f.Len +} + +func (f *FakeFile) IsDir() bool { + return f.Mode().IsDir() +} + +func (f *FakeFile) Sys() interface{} { + return nil +} + +// AssetFile implements http.File interface for a no-directory file with content +type AssetFile struct { + *bytes.Reader + io.Closer + FakeFile +} + +func NewAssetFile(name string, content []byte, timestamp time.Time) *AssetFile { + if timestamp.IsZero() { + timestamp = defaultFileTimestamp + } + return &AssetFile{ + bytes.NewReader(content), + ioutil.NopCloser(nil), + FakeFile{name, false, int64(len(content)), timestamp}} +} + +func (f *AssetFile) Readdir(count int) ([]os.FileInfo, error) { + return nil, errors.New("not a directory") +} + +func (f *AssetFile) Size() int64 { + return f.FakeFile.Size() +} + +func (f *AssetFile) Stat() (os.FileInfo, error) { + return f, nil +} + +// AssetDirectory implements http.File interface for a directory +type AssetDirectory struct { + AssetFile + ChildrenRead int + Children []os.FileInfo +} + +func NewAssetDirectory(name string, children []string, fs *AssetFS) *AssetDirectory { + fileinfos := make([]os.FileInfo, 0, len(children)) + for _, child := range children { + _, err := fs.AssetDir(filepath.Join(name, child)) + fileinfos = append(fileinfos, &FakeFile{child, err == nil, 0, time.Time{}}) + } + return &AssetDirectory{ + AssetFile{ + bytes.NewReader(nil), + ioutil.NopCloser(nil), + FakeFile{name, true, 0, time.Time{}}, + }, + 0, + fileinfos} +} + +func (f *AssetDirectory) Readdir(count int) ([]os.FileInfo, error) { + if count <= 0 { + return f.Children, nil + } + if f.ChildrenRead+count > len(f.Children) { + count = len(f.Children) - f.ChildrenRead + } + rv := f.Children[f.ChildrenRead : f.ChildrenRead+count] + f.ChildrenRead += count + return rv, nil +} + +func (f *AssetDirectory) Stat() (os.FileInfo, error) { + return f, nil +} + +// AssetFS implements http.FileSystem, allowing +// embedded files to be served from net/http package. +type AssetFS struct { + // Asset should return content of file in path if exists + Asset func(path string) ([]byte, error) + // AssetDir should return list of files in the path + AssetDir func(path string) ([]string, error) + // AssetInfo should return the info of file in path if exists + AssetInfo func(path string) (os.FileInfo, error) + // Prefix would be prepended to http requests + Prefix string +} + +func (fs *AssetFS) Open(name string) (http.File, error) { + name = path.Join(fs.Prefix, name) + if len(name) > 0 && name[0] == '/' { + name = name[1:] + } + if b, err := fs.Asset(name); err == nil { + timestamp := defaultFileTimestamp + if info, err := fs.AssetInfo(name); err == nil { + timestamp = info.ModTime() + } + return NewAssetFile(name, b, timestamp), nil + } + if children, err := fs.AssetDir(name); err == nil { + return NewAssetDirectory(name, children, fs), nil + } else { + return nil, err + } +} diff --git a/Godeps/_workspace/src/github.com/elazarl/go-bindata-assetfs/doc.go b/Godeps/_workspace/src/github.com/elazarl/go-bindata-assetfs/doc.go new file mode 100644 index 0000000..a664249 --- /dev/null +++ b/Godeps/_workspace/src/github.com/elazarl/go-bindata-assetfs/doc.go @@ -0,0 +1,13 @@ +// assetfs allows packages to serve static content embedded +// with the go-bindata tool with the standard net/http package. +// +// See https://github.com/jteeuwen/go-bindata for more information +// about embedding binary data with go-bindata. +// +// Usage example, after running +// $ go-bindata data/... +// use: +// http.Handle("/", +// http.FileServer( +// &assetfs.AssetFS{Asset: Asset, AssetDir: AssetDir, Prefix: "data"})) +package assetfs diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/.gitignore b/Godeps/_workspace/src/github.com/flosch/pongo2/.gitignore new file mode 100644 index 0000000..37eaf44 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/.gitignore @@ -0,0 +1,40 @@ +# Compiled Object files, Static and Dynamic libs (Shared Objects) +*.o +*.a +*.so + +# Folders +_obj +_test +.idea + +# Architecture specific extensions/prefixes +*.[568vq] +[568vq].out + +*.cgo1.go +*.cgo2.c +_cgo_defun.c +_cgo_gotypes.go +_cgo_export.* + +_testmain.go + +*.exe + +.project +EBNF.txt +test1.tpl +pongo2_internal_test.go +tpl-error.out +/count.out +/cover.out +*.swp +*.iml +/cpu.out +/mem.out +/pongo2.test +*.error +/profile +/coverage.out +/pongo2_internal_test.ignore diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/.travis.yml b/Godeps/_workspace/src/github.com/flosch/pongo2/.travis.yml new file mode 100644 index 0000000..18971e1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/.travis.yml @@ -0,0 +1,12 @@ +language: go + +go: + - 1.4 + - tip +install: + - go get golang.org/x/tools/cmd/cover + - go get github.com/mattn/goveralls + - go get gopkg.in/check.v1 +script: + - go test -v -covermode=count -coverprofile=coverage.out -bench . -cpu 1,4 + - '[ "${TRAVIS_PULL_REQUEST}" = "false" ] && $HOME/gopath/bin/goveralls -coverprofile=coverage.out -service=travis-ci -repotoken $COVERALLS_TOKEN || true' diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/AUTHORS b/Godeps/_workspace/src/github.com/flosch/pongo2/AUTHORS new file mode 100644 index 0000000..b552df4 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/AUTHORS @@ -0,0 +1,10 @@ +Main author and maintainer of pongo2: + +* Florian Schlachter + +Contributors (in no specific order): + +* @romanoaugusto88 +* @vitalbh + +Feel free to add yourself to the list or to modify your entry if you did a contribution. diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/LICENSE b/Godeps/_workspace/src/github.com/flosch/pongo2/LICENSE new file mode 100644 index 0000000..e876f86 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/LICENSE @@ -0,0 +1,20 @@ +The MIT License (MIT) + +Copyright (c) 2013-2014 Florian Schlachter + +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of +the Software, and to permit persons to whom the Software is furnished to do so, +subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS +FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR +COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER +IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/README.md b/Godeps/_workspace/src/github.com/flosch/pongo2/README.md new file mode 100644 index 0000000..609adab --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/README.md @@ -0,0 +1,253 @@ +# [pongo](https://en.wikipedia.org/wiki/Pongo_%28genus%29)2 + +[![Join the chat at https://gitter.im/flosch/pongo2](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/flosch/pongo2) +[![GoDoc](https://godoc.org/github.com/flosch/pongo2?status.svg)](https://godoc.org/github.com/flosch/pongo2) +[![Build Status](https://travis-ci.org/flosch/pongo2.svg?branch=master)](https://travis-ci.org/flosch/pongo2) +[![Coverage Status](https://coveralls.io/repos/flosch/pongo2/badge.svg?branch=master)](https://coveralls.io/r/flosch/pongo2?branch=master) +[![gratipay](http://img.shields.io/badge/gratipay-support%20pongo-brightgreen.svg)](https://gratipay.com/flosch/) +[![Bountysource](https://www.bountysource.com/badge/tracker?tracker_id=3654947)](https://www.bountysource.com/trackers/3654947-pongo2?utm_source=3654947&utm_medium=shield&utm_campaign=TRACKER_BADGE) + +pongo2 is the successor of [pongo](https://github.com/flosch/pongo), a Django-syntax like templating-language. + +Install/update using `go get` (no dependencies required by pongo2): +``` +go get -u github.com/flosch/pongo2 +``` + +Please use the [issue tracker](https://github.com/flosch/pongo2/issues) if you're encountering any problems with pongo2 or if you need help with implementing tags or filters ([create a ticket!](https://github.com/flosch/pongo2/issues/new)). If possible, please use [playground](https://www.florian-schlachter.de/pongo2/) to create a short test case on what's wrong and include the link to the snippet in your issue. + +**New**: [Try pongo2 out in the pongo2 playground.](https://www.florian-schlachter.de/pongo2/) + +## First impression of a template + +```HTML+Django +Our admins and users +{# This is a short example to give you a quick overview of pongo2's syntax. #} + +{% macro user_details(user, is_admin=false) %} +
+ +

= 40) || (user.karma > calc_avg_karma(userlist)+5) %} + class="karma-good"{% endif %}> + + + {{ user }} +

+ + +

This user registered {{ user.register_date|naturaltime }}.

+ + +

The user's biography:

+

{{ user.biography|markdown|truncatewords_html:15 }} + read more

+ + {% if is_admin %}

This user is an admin!

{% endif %} +
+{% endmacro %} + + + + +

Our admins

+ {% for admin in adminlist %} + {{ user_details(admin, true) }} + {% endfor %} + +

Our members

+ {% for user in userlist %} + {{ user_details(user) }} + {% endfor %} + + +``` + +## Development status + +**Latest stable release**: v3.0 (`go get -u gopkg.in/flosch/pongo2.v3` / [`v3`](https://github.com/flosch/pongo2/tree/v3)-branch) [[read the announcement](https://www.florian-schlachter.de/post/pongo2-v3/)] + +**Current development**: v4 (`master`-branch) + +*Note*: With the release of pongo v4 the branch v2 will be deprecated. + +**Deprecated versions** (not supported anymore): v1 + +| Topic | Status | +| ------------------------------------ | -------------------------------------------------------------------------------------- | +| Django version compatibility: | [1.7](https://docs.djangoproject.com/en/1.7/ref/templates/builtins/) | +| *Missing* (planned) **filters**: | none ([hints](https://github.com/flosch/pongo2/blob/master/filters_builtin.go#L3)) | +| *Missing* (planned) **tags**: | none ([hints](https://github.com/flosch/pongo2/blob/master/tags.go#L3)) | + +Please also have a look on the [caveats](https://github.com/flosch/pongo2#caveats) and on the [official add-ons](https://github.com/flosch/pongo2#official). + +## Features (and new in pongo2) + + * Entirely rewritten from the ground-up. + * [Advanced C-like expressions](https://github.com/flosch/pongo2/blob/master/template_tests/expressions.tpl). + * [Complex function calls within expressions](https://github.com/flosch/pongo2/blob/master/template_tests/function_calls_wrapper.tpl). + * [Easy API to create new filters and tags](http://godoc.org/github.com/flosch/pongo2#RegisterFilter) ([including parsing arguments](http://godoc.org/github.com/flosch/pongo2#Parser)) + * Additional features: + * Macros including importing macros from other files (see [template_tests/macro.tpl](https://github.com/flosch/pongo2/blob/master/template_tests/macro.tpl)) + * [Template sandboxing](https://godoc.org/github.com/flosch/pongo2#TemplateSet) ([directory patterns](http://golang.org/pkg/path/filepath/#Match), banned tags/filters) + +## Recent API changes within pongo2 + +If you're using the `master`-branch of pongo2, you might be interested in this section. Since pongo2 is still in development (even though there is a first stable release!), there could be (backwards-incompatible) API changes over time. To keep track of these and therefore make it painless for you to adapt your codebase, I'll list them here. + + * Function signature for tag execution changed: not taking a `bytes.Buffer` anymore; instead `Execute()`-functions are now taking a `TemplateWriter` interface. + * Function signature for tag and filter parsing/execution changed (`error` return type changed to `*Error`). + * `INodeEvaluator` has been removed and got replaced by `IEvaluator`. You can change your existing tags/filters by simply replacing the interface. + * Two new helper functions: [`RenderTemplateFile()`](https://godoc.org/github.com/flosch/pongo2#RenderTemplateFile) and [`RenderTemplateString()`](https://godoc.org/github.com/flosch/pongo2#RenderTemplateString). + * `Template.ExecuteRW()` is now [`Template.ExecuteWriter()`](https://godoc.org/github.com/flosch/pongo2#Template.ExecuteWriter) + * `Template.Execute*()` functions do now take a `pongo2.Context` directly (no pointer anymore). + +## How you can help + + * Write [filters](https://github.com/flosch/pongo2/blob/master/filters_builtin.go#L3) / [tags](https://github.com/flosch/pongo2/blob/master/tags.go#L4) (see [tutorial](https://www.florian-schlachter.de/post/pongo2/)) by forking pongo2 and sending pull requests + * Write/improve code tests (use the following command to see what tests are missing: `go test -v -cover -covermode=count -coverprofile=cover.out && go tool cover -html=cover.out` or have a look on [gocover.io/github.com/flosch/pongo2](http://gocover.io/github.com/flosch/pongo2)) + * Write/improve template tests (see the `template_tests/` directory) + * Write middleware, libraries and websites using pongo2. :-) + +# Documentation + +For a documentation on how the templating language works you can [head over to the Django documentation](https://docs.djangoproject.com/en/dev/topics/templates/). pongo2 aims to be compatible with it. + +You can access pongo2's API documentation on [godoc](https://godoc.org/github.com/flosch/pongo2). + +## Blog post series + + * [pongo2 v3 released](https://www.florian-schlachter.de/post/pongo2-v3/) + * [pongo2 v2 released](https://www.florian-schlachter.de/post/pongo2-v2/) + * [pongo2 1.0 released](https://www.florian-schlachter.de/post/pongo2-10/) [August 8th 2014] + * [pongo2 playground](https://www.florian-schlachter.de/post/pongo2-playground/) [August 1st 2014] + * [Release of pongo2 1.0-rc1 + pongo2-addons](https://www.florian-schlachter.de/post/pongo2-10-rc1/) [July 30th 2014] + * [Introduction to pongo2 + migration- and "how to write tags/filters"-tutorial.](https://www.florian-schlachter.de/post/pongo2/) [June 29th 2014] + +## Caveats + +### Filters + + * **date** / **time**: The `date` and `time` filter are taking the Golang specific time- and date-format (not Django's one) currently. [Take a look on the format here](http://golang.org/pkg/time/#Time.Format). + * **stringformat**: `stringformat` does **not** take Python's string format syntax as a parameter, instead it takes Go's. Essentially `{{ 3.14|stringformat:"pi is %.2f" }}` is `fmt.Sprintf("pi is %.2f", 3.14)`. + * **escape** / **force_escape**: Unlike Django's behaviour, the `escape`-filter is applied immediately. Therefore there is no need for a `force_escape`-filter yet. + +### Tags + + * **for**: All the `forloop` fields (like `forloop.counter`) are written with a capital letter at the beginning. For example, the `counter` can be accessed by `forloop.Counter` and the parentloop by `forloop.Parentloop`. + * **now**: takes Go's time format (see **date** and **time**-filter). + +### Misc + + * **not in-operator**: You can check whether a map/struct/string contains a key/field/substring by using the in-operator (or the negation of it): + `{% if key in map %}Key is in map{% else %}Key not in map{% endif %}` or `{% if !(key in map) %}Key is NOT in map{% else %}Key is in map{% endif %}`. + +# Add-ons, libraries and helpers + +## Official + + * [ponginae](https://github.com/flosch/ponginae) - A web-framework for Go (using pongo2). + * [pongo2-tools](https://github.com/flosch/pongo2-tools) - Official tools and helpers for pongo2 + * [pongo2-addons](https://github.com/flosch/pongo2-addons) - Official additional filters/tags for pongo2 (for example a **markdown**-filter). They are in their own repository because they're relying on 3rd-party-libraries. + +## 3rd-party + + * [beego-pongo2](https://github.com/oal/beego-pongo2) - A tiny little helper for using Pongo2 with [Beego](https://github.com/astaxie/beego). + * [beego-pongo2.v2](https://github.com/ipfans/beego-pongo2.v2) - Same as `beego-pongo2`, but for pongo2 v2. + * [macaron-pongo2](https://github.com/macaron-contrib/pongo2) - pongo2 support for [Macaron](https://github.com/Unknwon/macaron), a modular web framework. + * [ginpongo2](https://github.com/ngerakines/ginpongo2) - middleware for [gin](github.com/gin-gonic/gin) to use pongo2 templates + * [pongo2gin](https://github.com/robvdl/pongo2gin) - alternative renderer for [gin](github.com/gin-gonic/gin) to use pongo2 templates + * [pongo2-trans](https://github.com/fromYukki/pongo2trans) - `trans`-tag implementation for internationalization + * [tpongo2](https://github.com/tango-contrib/tpongo2) - pongo2 support for [Tango](https://github.com/lunny/tango), a micro-kernel & pluggable web framework. + +Please add your project to this list and send me a pull request when you've developed something nice for pongo2. + +# API-usage examples + +Please see the documentation for a full list of provided API methods. + +## A tiny example (template string) + +```Go +// Compile the template first (i. e. creating the AST) +tpl, err := pongo2.FromString("Hello {{ name|capfirst }}!") +if err != nil { + panic(err) +} +// Now you can render the template with the given +// pongo2.Context how often you want to. +out, err := tpl.Execute(pongo2.Context{"name": "florian"}) +if err != nil { + panic(err) +} +fmt.Println(out) // Output: Hello Florian! +``` + +## Example server-usage (template file) + +```Go +package main + +import ( + "github.com/flosch/pongo2" + "net/http" +) + +// Pre-compiling the templates at application startup using the +// little Must()-helper function (Must() will panic if FromFile() +// or FromString() will return with an error - that's it). +// It's faster to pre-compile it anywhere at startup and only +// execute the template later. +var tplExample = pongo2.Must(pongo2.FromFile("example.html")) + +func examplePage(w http.ResponseWriter, r *http.Request) { + // Execute the template per HTTP request + err := tplExample.ExecuteWriter(pongo2.Context{"query": r.FormValue("query")}, w) + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + } +} + +func main() { + http.HandleFunc("/", examplePage) + http.ListenAndServe(":8080", nil) +} +``` + +# Benchmark + +The benchmarks have been run on the my machine (`Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz`) using the command: + + go test -bench . -cpu 1,2,4,8 + +All benchmarks are compiling (depends on the benchmark) and executing the `template_tests/complex.tpl` template. + +The results are: + + BenchmarkExecuteComplexWithSandboxActive 50000 60450 ns/op + BenchmarkExecuteComplexWithSandboxActive-2 50000 56998 ns/op + BenchmarkExecuteComplexWithSandboxActive-4 50000 60343 ns/op + BenchmarkExecuteComplexWithSandboxActive-8 50000 64229 ns/op + BenchmarkCompileAndExecuteComplexWithSandboxActive 10000 164410 ns/op + BenchmarkCompileAndExecuteComplexWithSandboxActive-2 10000 156682 ns/op + BenchmarkCompileAndExecuteComplexWithSandboxActive-4 10000 164821 ns/op + BenchmarkCompileAndExecuteComplexWithSandboxActive-8 10000 171806 ns/op + BenchmarkParallelExecuteComplexWithSandboxActive 50000 60428 ns/op + BenchmarkParallelExecuteComplexWithSandboxActive-2 50000 31887 ns/op + BenchmarkParallelExecuteComplexWithSandboxActive-4 100000 22810 ns/op + BenchmarkParallelExecuteComplexWithSandboxActive-8 100000 18820 ns/op + BenchmarkExecuteComplexWithoutSandbox 50000 56942 ns/op + BenchmarkExecuteComplexWithoutSandbox-2 50000 56168 ns/op + BenchmarkExecuteComplexWithoutSandbox-4 50000 57838 ns/op + BenchmarkExecuteComplexWithoutSandbox-8 50000 60539 ns/op + BenchmarkCompileAndExecuteComplexWithoutSandbox 10000 162086 ns/op + BenchmarkCompileAndExecuteComplexWithoutSandbox-2 10000 159771 ns/op + BenchmarkCompileAndExecuteComplexWithoutSandbox-4 10000 163826 ns/op + BenchmarkCompileAndExecuteComplexWithoutSandbox-8 10000 169062 ns/op + BenchmarkParallelExecuteComplexWithoutSandbox 50000 57152 ns/op + BenchmarkParallelExecuteComplexWithoutSandbox-2 50000 30276 ns/op + BenchmarkParallelExecuteComplexWithoutSandbox-4 100000 22065 ns/op + BenchmarkParallelExecuteComplexWithoutSandbox-8 100000 18034 ns/op + +Benchmarked on October 2nd 2014. diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/context.go b/Godeps/_workspace/src/github.com/flosch/pongo2/context.go new file mode 100644 index 0000000..7b728ec --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/context.go @@ -0,0 +1,125 @@ +package pongo2 + +import ( + "fmt" + "regexp" +) + +var reIdentifiers = regexp.MustCompile("^[a-zA-Z0-9_]+$") + +// A Context type provides constants, variables, instances or functions to a template. +// +// pongo2 automatically provides meta-information or functions through the "pongo2"-key. +// Currently, context["pongo2"] contains the following keys: +// 1. version: returns the version string +// +// Template examples for accessing items from your context: +// {{ myconstant }} +// {{ myfunc("test", 42) }} +// {{ user.name }} +// {{ pongo2.version }} +type Context map[string]interface{} + +func (c Context) checkForValidIdentifiers() *Error { + for k, v := range c { + if !reIdentifiers.MatchString(k) { + return &Error{ + Sender: "checkForValidIdentifiers", + ErrorMsg: fmt.Sprintf("Context-key '%s' (value: '%+v') is not a valid identifier.", k, v), + } + } + } + return nil +} + +// Update updates this context with the key/value-pairs from another context. +func (c Context) Update(other Context) Context { + for k, v := range other { + c[k] = v + } + return c +} + +// ExecutionContext contains all data important for the current rendering state. +// +// If you're writing a custom tag, your tag's Execute()-function will +// have access to the ExecutionContext. This struct stores anything +// about the current rendering process's Context including +// the Context provided by the user (field Public). +// You can safely use the Private context to provide data to the user's +// template (like a 'forloop'-information). The Shared-context is used +// to share data between tags. All ExecutionContexts share this context. +// +// Please be careful when accessing the Public data. +// PLEASE DO NOT MODIFY THE PUBLIC CONTEXT (read-only). +// +// To create your own execution context within tags, use the +// NewChildExecutionContext(parent) function. +type ExecutionContext struct { + template *Template + + Autoescape bool + Public Context + Private Context + Shared Context +} + +var pongo2MetaContext = Context{ + "version": Version, +} + +func newExecutionContext(tpl *Template, ctx Context) *ExecutionContext { + privateCtx := make(Context) + + // Make the pongo2-related funcs/vars available to the context + privateCtx["pongo2"] = pongo2MetaContext + + return &ExecutionContext{ + template: tpl, + + Public: ctx, + Private: privateCtx, + Autoescape: true, + } +} + +func NewChildExecutionContext(parent *ExecutionContext) *ExecutionContext { + newctx := &ExecutionContext{ + template: parent.template, + + Public: parent.Public, + Private: make(Context), + Autoescape: parent.Autoescape, + } + newctx.Shared = parent.Shared + + // Copy all existing private items + newctx.Private.Update(parent.Private) + + return newctx +} + +func (ctx *ExecutionContext) Error(msg string, token *Token) *Error { + filename := ctx.template.name + var line, col int + if token != nil { + // No tokens available + // TODO: Add location (from where?) + filename = token.Filename + line = token.Line + col = token.Col + } + return &Error{ + Template: ctx.template, + Filename: filename, + Line: line, + Column: col, + Token: token, + Sender: "execution", + ErrorMsg: msg, + } +} + +func (ctx *ExecutionContext) Logf(format string, args ...interface{}) { + ctx.template.set.logf(format, args...) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/doc.go b/Godeps/_workspace/src/github.com/flosch/pongo2/doc.go new file mode 100644 index 0000000..5a23e2b --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/doc.go @@ -0,0 +1,31 @@ +// A Django-syntax like template-engine +// +// Blog posts about pongo2 (including introduction and migration): +// https://www.florian-schlachter.de/?tag=pongo2 +// +// Complete documentation on the template language: +// https://docs.djangoproject.com/en/dev/topics/templates/ +// +// Try out pongo2 live in the pongo2 playground: +// https://www.florian-schlachter.de/pongo2/ +// +// Make sure to read README.md in the repository as well. +// +// A tiny example with template strings: +// +// (Snippet on playground: https://www.florian-schlachter.de/pongo2/?id=1206546277) +// +// // Compile the template first (i. e. creating the AST) +// tpl, err := pongo2.FromString("Hello {{ name|capfirst }}!") +// if err != nil { +// panic(err) +// } +// // Now you can render the template with the given +// // pongo2.Context how often you want to. +// out, err := tpl.Execute(pongo2.Context{"name": "fred"}) +// if err != nil { +// panic(err) +// } +// fmt.Println(out) // Output: Hello Fred! +// +package pongo2 diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/error.go b/Godeps/_workspace/src/github.com/flosch/pongo2/error.go new file mode 100644 index 0000000..80d1147 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/error.go @@ -0,0 +1,91 @@ +package pongo2 + +import ( + "bufio" + "fmt" + "os" +) + +// The Error type is being used to address an error during lexing, parsing or +// execution. If you want to return an error object (for example in your own +// tag or filter) fill this object with as much information as you have. +// Make sure "Sender" is always given (if you're returning an error within +// a filter, make Sender equals 'filter:yourfilter'; same goes for tags: 'tag:mytag'). +// It's okay if you only fill in ErrorMsg if you don't have any other details at hand. +type Error struct { + Template *Template + Filename string + Line int + Column int + Token *Token + Sender string + ErrorMsg string +} + +func (e *Error) updateFromTokenIfNeeded(template *Template, t *Token) *Error { + if e.Template == nil { + e.Template = template + } + + if e.Token == nil { + e.Token = t + if e.Line <= 0 { + e.Line = t.Line + e.Column = t.Col + } + } + + return e +} + +// Returns a nice formatted error string. +func (e *Error) Error() string { + s := "[Error" + if e.Sender != "" { + s += " (where: " + e.Sender + ")" + } + if e.Filename != "" { + s += " in " + e.Filename + } + if e.Line > 0 { + s += fmt.Sprintf(" | Line %d Col %d", e.Line, e.Column) + if e.Token != nil { + s += fmt.Sprintf(" near '%s'", e.Token.Val) + } + } + s += "] " + s += e.ErrorMsg + return s +} + +// RawLine returns the affected line from the original template, if available. +func (e *Error) RawLine() (line string, available bool) { + if e.Line <= 0 || e.Filename == "" { + return "", false + } + + filename := e.Filename + if e.Template != nil { + filename = e.Template.set.resolveFilename(e.Template, e.Filename) + } + file, err := os.Open(filename) + if err != nil { + panic(err) + } + defer func() { + err := file.Close() + if err != nil { + panic(err) + } + }() + + scanner := bufio.NewScanner(file) + l := 0 + for scanner.Scan() { + l++ + if l == e.Line { + return scanner.Text(), true + } + } + return "", false +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/filters.go b/Godeps/_workspace/src/github.com/flosch/pongo2/filters.go new file mode 100644 index 0000000..13061f3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/filters.go @@ -0,0 +1,133 @@ +package pongo2 + +import ( + "fmt" +) + +type FilterFunction func(in *Value, param *Value) (out *Value, err *Error) + +var filters map[string]FilterFunction + +func init() { + filters = make(map[string]FilterFunction) +} + +// Registers a new filter. If there's already a filter with the same +// name, RegisterFilter will panic. You usually want to call this +// function in the filter's init() function: +// http://golang.org/doc/effective_go.html#init +// +// See http://www.florian-schlachter.de/post/pongo2/ for more about +// writing filters and tags. +func RegisterFilter(name string, fn FilterFunction) { + _, existing := filters[name] + if existing { + panic(fmt.Sprintf("Filter with name '%s' is already registered.", name)) + } + filters[name] = fn +} + +// Replaces an already registered filter with a new implementation. Use this +// function with caution since it allows you to change existing filter behaviour. +func ReplaceFilter(name string, fn FilterFunction) { + _, existing := filters[name] + if !existing { + panic(fmt.Sprintf("Filter with name '%s' does not exist (therefore cannot be overridden).", name)) + } + filters[name] = fn +} + +// Like ApplyFilter, but panics on an error +func MustApplyFilter(name string, value *Value, param *Value) *Value { + val, err := ApplyFilter(name, value, param) + if err != nil { + panic(err) + } + return val +} + +// Applies a filter to a given value using the given parameters. Returns a *pongo2.Value or an error. +func ApplyFilter(name string, value *Value, param *Value) (*Value, *Error) { + fn, existing := filters[name] + if !existing { + return nil, &Error{ + Sender: "applyfilter", + ErrorMsg: fmt.Sprintf("Filter with name '%s' not found.", name), + } + } + + // Make sure param is a *Value + if param == nil { + param = AsValue(nil) + } + + return fn(value, param) +} + +type filterCall struct { + token *Token + + name string + parameter IEvaluator + + filterFunc FilterFunction +} + +func (fc *filterCall) Execute(v *Value, ctx *ExecutionContext) (*Value, *Error) { + var param *Value + var err *Error + + if fc.parameter != nil { + param, err = fc.parameter.Evaluate(ctx) + if err != nil { + return nil, err + } + } else { + param = AsValue(nil) + } + + filteredValue, err := fc.filterFunc(v, param) + if err != nil { + return nil, err.updateFromTokenIfNeeded(ctx.template, fc.token) + } + return filteredValue, nil +} + +// Filter = IDENT | IDENT ":" FilterArg | IDENT "|" Filter +func (p *Parser) parseFilter() (*filterCall, *Error) { + identToken := p.MatchType(TokenIdentifier) + + // Check filter ident + if identToken == nil { + return nil, p.Error("Filter name must be an identifier.", nil) + } + + filter := &filterCall{ + token: identToken, + name: identToken.Val, + } + + // Get the appropriate filter function and bind it + filterFn, exists := filters[identToken.Val] + if !exists { + return nil, p.Error(fmt.Sprintf("Filter '%s' does not exist.", identToken.Val), identToken) + } + + filter.filterFunc = filterFn + + // Check for filter-argument (2 tokens needed: ':' ARG) + if p.Match(TokenSymbol, ":") != nil { + if p.Peek(TokenSymbol, "}}") != nil { + return nil, p.Error("Filter parameter required after ':'.", nil) + } + + // Get filter argument expression + v, err := p.parseVariableOrLiteral() + if err != nil { + return nil, err + } + filter.parameter = v + } + + return filter, nil +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/filters_builtin.go b/Godeps/_workspace/src/github.com/flosch/pongo2/filters_builtin.go new file mode 100644 index 0000000..a267fa2 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/filters_builtin.go @@ -0,0 +1,901 @@ +package pongo2 + +/* Filters that are provided through github.com/flosch/pongo2-addons: + ------------------------------------------------------------------ + + filesizeformat + slugify + timesince + timeuntil + + Filters that won't be added: + ---------------------------- + + get_static_prefix (reason: web-framework specific) + pprint (reason: python-specific) + static (reason: web-framework specific) + + Reconsideration (not implemented yet): + -------------------------------------- + + force_escape (reason: not yet needed since this is the behaviour of pongo2's escape filter) + safeseq (reason: same reason as `force_escape`) + unordered_list (python-specific; not sure whether needed or not) + dictsort (python-specific; maybe one could add a filter to sort a list of structs by a specific field name) + dictsortreversed (see dictsort) +*/ + +import ( + "bytes" + "fmt" + "math/rand" + "net/url" + "regexp" + "strconv" + "strings" + "time" + "unicode/utf8" +) + +func init() { + rand.Seed(time.Now().Unix()) + + RegisterFilter("escape", filterEscape) + RegisterFilter("safe", filterSafe) + RegisterFilter("escapejs", filterEscapejs) + + RegisterFilter("add", filterAdd) + RegisterFilter("addslashes", filterAddslashes) + RegisterFilter("capfirst", filterCapfirst) + RegisterFilter("center", filterCenter) + RegisterFilter("cut", filterCut) + RegisterFilter("date", filterDate) + RegisterFilter("default", filterDefault) + RegisterFilter("default_if_none", filterDefaultIfNone) + RegisterFilter("divisibleby", filterDivisibleby) + RegisterFilter("first", filterFirst) + RegisterFilter("floatformat", filterFloatformat) + RegisterFilter("get_digit", filterGetdigit) + RegisterFilter("iriencode", filterIriencode) + RegisterFilter("join", filterJoin) + RegisterFilter("last", filterLast) + RegisterFilter("length", filterLength) + RegisterFilter("length_is", filterLengthis) + RegisterFilter("linebreaks", filterLinebreaks) + RegisterFilter("linebreaksbr", filterLinebreaksbr) + RegisterFilter("linenumbers", filterLinenumbers) + RegisterFilter("ljust", filterLjust) + RegisterFilter("lower", filterLower) + RegisterFilter("make_list", filterMakelist) + RegisterFilter("phone2numeric", filterPhone2numeric) + RegisterFilter("pluralize", filterPluralize) + RegisterFilter("random", filterRandom) + RegisterFilter("removetags", filterRemovetags) + RegisterFilter("rjust", filterRjust) + RegisterFilter("slice", filterSlice) + RegisterFilter("stringformat", filterStringformat) + RegisterFilter("striptags", filterStriptags) + RegisterFilter("time", filterDate) // time uses filterDate (same golang-format) + RegisterFilter("title", filterTitle) + RegisterFilter("truncatechars", filterTruncatechars) + RegisterFilter("truncatechars_html", filterTruncatecharsHTML) + RegisterFilter("truncatewords", filterTruncatewords) + RegisterFilter("truncatewords_html", filterTruncatewordsHTML) + RegisterFilter("upper", filterUpper) + RegisterFilter("urlencode", filterUrlencode) + RegisterFilter("urlize", filterUrlize) + RegisterFilter("urlizetrunc", filterUrlizetrunc) + RegisterFilter("wordcount", filterWordcount) + RegisterFilter("wordwrap", filterWordwrap) + RegisterFilter("yesno", filterYesno) + + RegisterFilter("float", filterFloat) // pongo-specific + RegisterFilter("integer", filterInteger) // pongo-specific +} + +func filterTruncatecharsHelper(s string, newLen int) string { + runes := []rune(s) + if newLen < len(runes) { + if newLen >= 3 { + return fmt.Sprintf("%s...", string(runes[:newLen-3])) + } + // Not enough space for the ellipsis + return string(runes[:newLen]) + } + return string(runes) +} + +func filterTruncateHTMLHelper(value string, newOutput *bytes.Buffer, cond func() bool, fn func(c rune, s int, idx int) int, finalize func()) { + vLen := len(value) + var tagStack []string + idx := 0 + + for idx < vLen && !cond() { + c, s := utf8.DecodeRuneInString(value[idx:]) + if c == utf8.RuneError { + idx += s + continue + } + + if c == '<' { + newOutput.WriteRune(c) + idx += s // consume "<" + + if idx+1 < vLen { + if value[idx] == '/' { + // Close tag + + newOutput.WriteString("/") + + tag := "" + idx++ // consume "/" + + for idx < vLen { + c2, size2 := utf8.DecodeRuneInString(value[idx:]) + if c2 == utf8.RuneError { + idx += size2 + continue + } + + // End of tag found + if c2 == '>' { + idx++ // consume ">" + break + } + tag += string(c2) + idx += size2 + } + + if len(tagStack) > 0 { + // Ideally, the close tag is TOP of tag stack + // In malformed HTML, it must not be, so iterate through the stack and remove the tag + for i := len(tagStack) - 1; i >= 0; i-- { + if tagStack[i] == tag { + // Found the tag + tagStack[i] = tagStack[len(tagStack)-1] + tagStack = tagStack[:len(tagStack)-1] + break + } + } + } + + newOutput.WriteString(tag) + newOutput.WriteString(">") + } else { + // Open tag + + tag := "" + + params := false + for idx < vLen { + c2, size2 := utf8.DecodeRuneInString(value[idx:]) + if c2 == utf8.RuneError { + idx += size2 + continue + } + + newOutput.WriteRune(c2) + + // End of tag found + if c2 == '>' { + idx++ // consume ">" + break + } + + if !params { + if c2 == ' ' { + params = true + } else { + tag += string(c2) + } + } + + idx += size2 + } + + // Add tag to stack + tagStack = append(tagStack, tag) + } + } + } else { + idx = fn(c, s, idx) + } + } + + finalize() + + for i := len(tagStack) - 1; i >= 0; i-- { + tag := tagStack[i] + // Close everything from the regular tag stack + newOutput.WriteString(fmt.Sprintf("", tag)) + } +} + +func filterTruncatechars(in *Value, param *Value) (*Value, *Error) { + s := in.String() + newLen := param.Integer() + return AsValue(filterTruncatecharsHelper(s, newLen)), nil +} + +func filterTruncatecharsHTML(in *Value, param *Value) (*Value, *Error) { + value := in.String() + newLen := max(param.Integer()-3, 0) + + newOutput := bytes.NewBuffer(nil) + + textcounter := 0 + + filterTruncateHTMLHelper(value, newOutput, func() bool { + return textcounter >= newLen + }, func(c rune, s int, idx int) int { + textcounter++ + newOutput.WriteRune(c) + + return idx + s + }, func() { + if textcounter >= newLen && textcounter < len(value) { + newOutput.WriteString("...") + } + }) + + return AsSafeValue(newOutput.String()), nil +} + +func filterTruncatewords(in *Value, param *Value) (*Value, *Error) { + words := strings.Fields(in.String()) + n := param.Integer() + if n <= 0 { + return AsValue(""), nil + } + nlen := min(len(words), n) + out := make([]string, 0, nlen) + for i := 0; i < nlen; i++ { + out = append(out, words[i]) + } + + if n < len(words) { + out = append(out, "...") + } + + return AsValue(strings.Join(out, " ")), nil +} + +func filterTruncatewordsHTML(in *Value, param *Value) (*Value, *Error) { + value := in.String() + newLen := max(param.Integer(), 0) + + newOutput := bytes.NewBuffer(nil) + + wordcounter := 0 + + filterTruncateHTMLHelper(value, newOutput, func() bool { + return wordcounter >= newLen + }, func(_ rune, _ int, idx int) int { + // Get next word + wordFound := false + + for idx < len(value) { + c2, size2 := utf8.DecodeRuneInString(value[idx:]) + if c2 == utf8.RuneError { + idx += size2 + continue + } + + if c2 == '<' { + // HTML tag start, don't consume it + return idx + } + + newOutput.WriteRune(c2) + idx += size2 + + if c2 == ' ' || c2 == '.' || c2 == ',' || c2 == ';' { + // Word ends here, stop capturing it now + break + } else { + wordFound = true + } + } + + if wordFound { + wordcounter++ + } + + return idx + }, func() { + if wordcounter >= newLen { + newOutput.WriteString("...") + } + }) + + return AsSafeValue(newOutput.String()), nil +} + +func filterEscape(in *Value, param *Value) (*Value, *Error) { + output := strings.Replace(in.String(), "&", "&", -1) + output = strings.Replace(output, ">", ">", -1) + output = strings.Replace(output, "<", "<", -1) + output = strings.Replace(output, "\"", """, -1) + output = strings.Replace(output, "'", "'", -1) + return AsValue(output), nil +} + +func filterSafe(in *Value, param *Value) (*Value, *Error) { + return in, nil // nothing to do here, just to keep track of the safe application +} + +func filterEscapejs(in *Value, param *Value) (*Value, *Error) { + sin := in.String() + + var b bytes.Buffer + + idx := 0 + for idx < len(sin) { + c, size := utf8.DecodeRuneInString(sin[idx:]) + if c == utf8.RuneError { + idx += size + continue + } + + if c == '\\' { + // Escape seq? + if idx+1 < len(sin) { + switch sin[idx+1] { + case 'r': + b.WriteString(fmt.Sprintf(`\u%04X`, '\r')) + idx += 2 + continue + case 'n': + b.WriteString(fmt.Sprintf(`\u%04X`, '\n')) + idx += 2 + continue + /*case '\'': + b.WriteString(fmt.Sprintf(`\u%04X`, '\'')) + idx += 2 + continue + case '"': + b.WriteString(fmt.Sprintf(`\u%04X`, '"')) + idx += 2 + continue*/ + } + } + } + + if (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == ' ' || c == '/' { + b.WriteRune(c) + } else { + b.WriteString(fmt.Sprintf(`\u%04X`, c)) + } + + idx += size + } + + return AsValue(b.String()), nil +} + +func filterAdd(in *Value, param *Value) (*Value, *Error) { + if in.IsNumber() && param.IsNumber() { + if in.IsFloat() || param.IsFloat() { + return AsValue(in.Float() + param.Float()), nil + } + return AsValue(in.Integer() + param.Integer()), nil + } + // If in/param is not a number, we're relying on the + // Value's String() convertion and just add them both together + return AsValue(in.String() + param.String()), nil +} + +func filterAddslashes(in *Value, param *Value) (*Value, *Error) { + output := strings.Replace(in.String(), "\\", "\\\\", -1) + output = strings.Replace(output, "\"", "\\\"", -1) + output = strings.Replace(output, "'", "\\'", -1) + return AsValue(output), nil +} + +func filterCut(in *Value, param *Value) (*Value, *Error) { + return AsValue(strings.Replace(in.String(), param.String(), "", -1)), nil +} + +func filterLength(in *Value, param *Value) (*Value, *Error) { + return AsValue(in.Len()), nil +} + +func filterLengthis(in *Value, param *Value) (*Value, *Error) { + return AsValue(in.Len() == param.Integer()), nil +} + +func filterDefault(in *Value, param *Value) (*Value, *Error) { + if !in.IsTrue() { + return param, nil + } + return in, nil +} + +func filterDefaultIfNone(in *Value, param *Value) (*Value, *Error) { + if in.IsNil() { + return param, nil + } + return in, nil +} + +func filterDivisibleby(in *Value, param *Value) (*Value, *Error) { + if param.Integer() == 0 { + return AsValue(false), nil + } + return AsValue(in.Integer()%param.Integer() == 0), nil +} + +func filterFirst(in *Value, param *Value) (*Value, *Error) { + if in.CanSlice() && in.Len() > 0 { + return in.Index(0), nil + } + return AsValue(""), nil +} + +func filterFloatformat(in *Value, param *Value) (*Value, *Error) { + val := in.Float() + + decimals := -1 + if !param.IsNil() { + // Any argument provided? + decimals = param.Integer() + } + + // if the argument is not a number (e. g. empty), the default + // behaviour is trim the result + trim := !param.IsNumber() + + if decimals <= 0 { + // argument is negative or zero, so we + // want the output being trimmed + decimals = -decimals + trim = true + } + + if trim { + // Remove zeroes + if float64(int(val)) == val { + return AsValue(in.Integer()), nil + } + } + + return AsValue(strconv.FormatFloat(val, 'f', decimals, 64)), nil +} + +func filterGetdigit(in *Value, param *Value) (*Value, *Error) { + i := param.Integer() + l := len(in.String()) // do NOT use in.Len() here! + if i <= 0 || i > l { + return in, nil + } + return AsValue(in.String()[l-i] - 48), nil +} + +const filterIRIChars = "/#%[]=:;$&()+,!?*@'~" + +func filterIriencode(in *Value, param *Value) (*Value, *Error) { + var b bytes.Buffer + + sin := in.String() + for _, r := range sin { + if strings.IndexRune(filterIRIChars, r) >= 0 { + b.WriteRune(r) + } else { + b.WriteString(url.QueryEscape(string(r))) + } + } + + return AsValue(b.String()), nil +} + +func filterJoin(in *Value, param *Value) (*Value, *Error) { + if !in.CanSlice() { + return in, nil + } + sep := param.String() + sl := make([]string, 0, in.Len()) + for i := 0; i < in.Len(); i++ { + sl = append(sl, in.Index(i).String()) + } + return AsValue(strings.Join(sl, sep)), nil +} + +func filterLast(in *Value, param *Value) (*Value, *Error) { + if in.CanSlice() && in.Len() > 0 { + return in.Index(in.Len() - 1), nil + } + return AsValue(""), nil +} + +func filterUpper(in *Value, param *Value) (*Value, *Error) { + return AsValue(strings.ToUpper(in.String())), nil +} + +func filterLower(in *Value, param *Value) (*Value, *Error) { + return AsValue(strings.ToLower(in.String())), nil +} + +func filterMakelist(in *Value, param *Value) (*Value, *Error) { + s := in.String() + result := make([]string, 0, len(s)) + for _, c := range s { + result = append(result, string(c)) + } + return AsValue(result), nil +} + +func filterCapfirst(in *Value, param *Value) (*Value, *Error) { + if in.Len() <= 0 { + return AsValue(""), nil + } + t := in.String() + r, size := utf8.DecodeRuneInString(t) + return AsValue(strings.ToUpper(string(r)) + t[size:]), nil +} + +func filterCenter(in *Value, param *Value) (*Value, *Error) { + width := param.Integer() + slen := in.Len() + if width <= slen { + return in, nil + } + + spaces := width - slen + left := spaces/2 + spaces%2 + right := spaces / 2 + + return AsValue(fmt.Sprintf("%s%s%s", strings.Repeat(" ", left), + in.String(), strings.Repeat(" ", right))), nil +} + +func filterDate(in *Value, param *Value) (*Value, *Error) { + t, isTime := in.Interface().(time.Time) + if !isTime { + return nil, &Error{ + Sender: "filter:date", + ErrorMsg: "Filter input argument must be of type 'time.Time'.", + } + } + return AsValue(t.Format(param.String())), nil +} + +func filterFloat(in *Value, param *Value) (*Value, *Error) { + return AsValue(in.Float()), nil +} + +func filterInteger(in *Value, param *Value) (*Value, *Error) { + return AsValue(in.Integer()), nil +} + +func filterLinebreaks(in *Value, param *Value) (*Value, *Error) { + if in.Len() == 0 { + return in, nil + } + + var b bytes.Buffer + + // Newline =
+ // Double newline =

...

+ lines := strings.Split(in.String(), "\n") + lenlines := len(lines) + + opened := false + + for idx, line := range lines { + + if !opened { + b.WriteString("

") + opened = true + } + + b.WriteString(line) + + if idx < lenlines-1 && strings.TrimSpace(lines[idx]) != "" { + // We've not reached the end + if strings.TrimSpace(lines[idx+1]) == "" { + // Next line is empty + if opened { + b.WriteString("

") + opened = false + } + } else { + b.WriteString("
") + } + } + } + + if opened { + b.WriteString("

") + } + + return AsValue(b.String()), nil +} + +func filterLinebreaksbr(in *Value, param *Value) (*Value, *Error) { + return AsValue(strings.Replace(in.String(), "\n", "
", -1)), nil +} + +func filterLinenumbers(in *Value, param *Value) (*Value, *Error) { + lines := strings.Split(in.String(), "\n") + output := make([]string, 0, len(lines)) + for idx, line := range lines { + output = append(output, fmt.Sprintf("%d. %s", idx+1, line)) + } + return AsValue(strings.Join(output, "\n")), nil +} + +func filterLjust(in *Value, param *Value) (*Value, *Error) { + times := param.Integer() - in.Len() + if times < 0 { + times = 0 + } + return AsValue(fmt.Sprintf("%s%s", in.String(), strings.Repeat(" ", times))), nil +} + +func filterUrlencode(in *Value, param *Value) (*Value, *Error) { + return AsValue(url.QueryEscape(in.String())), nil +} + +// TODO: This regexp could do some work +var filterUrlizeURLRegexp = regexp.MustCompile(`((((http|https)://)|www\.|((^|[ ])[0-9A-Za-z_\-]+(\.com|\.net|\.org|\.info|\.biz|\.de))))(?U:.*)([ ]+|$)`) +var filterUrlizeEmailRegexp = regexp.MustCompile(`(\w+@\w+\.\w{2,4})`) + +func filterUrlizeHelper(input string, autoescape bool, trunc int) string { + sout := filterUrlizeURLRegexp.ReplaceAllStringFunc(input, func(raw_url string) string { + var prefix string + var suffix string + if strings.HasPrefix(raw_url, " ") { + prefix = " " + } + if strings.HasSuffix(raw_url, " ") { + suffix = " " + } + + raw_url = strings.TrimSpace(raw_url) + + t, err := ApplyFilter("iriencode", AsValue(raw_url), nil) + if err != nil { + panic(err) + } + url := t.String() + + if !strings.HasPrefix(url, "http") { + url = fmt.Sprintf("http://%s", url) + } + + title := raw_url + + if trunc > 3 && len(title) > trunc { + title = fmt.Sprintf("%s...", title[:trunc-3]) + } + + if autoescape { + t, err := ApplyFilter("escape", AsValue(title), nil) + if err != nil { + panic(err) + } + title = t.String() + } + + return fmt.Sprintf(`%s%s%s`, prefix, url, title, suffix) + }) + + sout = filterUrlizeEmailRegexp.ReplaceAllStringFunc(sout, func(mail string) string { + + title := mail + + if trunc > 3 && len(title) > trunc { + title = fmt.Sprintf("%s...", title[:trunc-3]) + } + + return fmt.Sprintf(`%s`, mail, title) + }) + + return sout +} + +func filterUrlize(in *Value, param *Value) (*Value, *Error) { + autoescape := true + if param.IsBool() { + autoescape = param.Bool() + } + + return AsValue(filterUrlizeHelper(in.String(), autoescape, -1)), nil +} + +func filterUrlizetrunc(in *Value, param *Value) (*Value, *Error) { + return AsValue(filterUrlizeHelper(in.String(), true, param.Integer())), nil +} + +func filterStringformat(in *Value, param *Value) (*Value, *Error) { + return AsValue(fmt.Sprintf(param.String(), in.Interface())), nil +} + +var reStriptags = regexp.MustCompile("<[^>]*?>") + +func filterStriptags(in *Value, param *Value) (*Value, *Error) { + s := in.String() + + // Strip all tags + s = reStriptags.ReplaceAllString(s, "") + + return AsValue(strings.TrimSpace(s)), nil +} + +// https://en.wikipedia.org/wiki/Phoneword +var filterPhone2numericMap = map[string]string{ + "a": "2", "b": "2", "c": "2", "d": "3", "e": "3", "f": "3", "g": "4", "h": "4", "i": "4", "j": "5", "k": "5", + "l": "5", "m": "6", "n": "6", "o": "6", "p": "7", "q": "7", "r": "7", "s": "7", "t": "8", "u": "8", "v": "8", + "w": "9", "x": "9", "y": "9", "z": "9", +} + +func filterPhone2numeric(in *Value, param *Value) (*Value, *Error) { + sin := in.String() + for k, v := range filterPhone2numericMap { + sin = strings.Replace(sin, k, v, -1) + sin = strings.Replace(sin, strings.ToUpper(k), v, -1) + } + return AsValue(sin), nil +} + +func filterPluralize(in *Value, param *Value) (*Value, *Error) { + if in.IsNumber() { + // Works only on numbers + if param.Len() > 0 { + endings := strings.Split(param.String(), ",") + if len(endings) > 2 { + return nil, &Error{ + Sender: "filter:pluralize", + ErrorMsg: "You cannot pass more than 2 arguments to filter 'pluralize'.", + } + } + if len(endings) == 1 { + // 1 argument + if in.Integer() != 1 { + return AsValue(endings[0]), nil + } + } else { + if in.Integer() != 1 { + // 2 arguments + return AsValue(endings[1]), nil + } + return AsValue(endings[0]), nil + } + } else { + if in.Integer() != 1 { + // return default 's' + return AsValue("s"), nil + } + } + + return AsValue(""), nil + } + return nil, &Error{ + Sender: "filter:pluralize", + ErrorMsg: "Filter 'pluralize' does only work on numbers.", + } +} + +func filterRandom(in *Value, param *Value) (*Value, *Error) { + if !in.CanSlice() || in.Len() <= 0 { + return in, nil + } + i := rand.Intn(in.Len()) + return in.Index(i), nil +} + +func filterRemovetags(in *Value, param *Value) (*Value, *Error) { + s := in.String() + tags := strings.Split(param.String(), ",") + + // Strip only specific tags + for _, tag := range tags { + re := regexp.MustCompile(fmt.Sprintf("", tag)) + s = re.ReplaceAllString(s, "") + } + + return AsValue(strings.TrimSpace(s)), nil +} + +func filterRjust(in *Value, param *Value) (*Value, *Error) { + return AsValue(fmt.Sprintf(fmt.Sprintf("%%%ds", param.Integer()), in.String())), nil +} + +func filterSlice(in *Value, param *Value) (*Value, *Error) { + comp := strings.Split(param.String(), ":") + if len(comp) != 2 { + return nil, &Error{ + Sender: "filter:slice", + ErrorMsg: "Slice string must have the format 'from:to' [from/to can be omitted, but the ':' is required]", + } + } + + if !in.CanSlice() { + return in, nil + } + + from := AsValue(comp[0]).Integer() + to := in.Len() + + if from > to { + from = to + } + + vto := AsValue(comp[1]).Integer() + if vto >= from && vto <= in.Len() { + to = vto + } + + return in.Slice(from, to), nil +} + +func filterTitle(in *Value, param *Value) (*Value, *Error) { + if !in.IsString() { + return AsValue(""), nil + } + return AsValue(strings.Title(strings.ToLower(in.String()))), nil +} + +func filterWordcount(in *Value, param *Value) (*Value, *Error) { + return AsValue(len(strings.Fields(in.String()))), nil +} + +func filterWordwrap(in *Value, param *Value) (*Value, *Error) { + words := strings.Fields(in.String()) + wordsLen := len(words) + wrapAt := param.Integer() + if wrapAt <= 0 { + return in, nil + } + + linecount := wordsLen/wrapAt + wordsLen%wrapAt + lines := make([]string, 0, linecount) + for i := 0; i < linecount; i++ { + lines = append(lines, strings.Join(words[wrapAt*i:min(wrapAt*(i+1), wordsLen)], " ")) + } + return AsValue(strings.Join(lines, "\n")), nil +} + +func filterYesno(in *Value, param *Value) (*Value, *Error) { + choices := map[int]string{ + 0: "yes", + 1: "no", + 2: "maybe", + } + paramString := param.String() + customChoices := strings.Split(paramString, ",") + if len(paramString) > 0 { + if len(customChoices) > 3 { + return nil, &Error{ + Sender: "filter:yesno", + ErrorMsg: fmt.Sprintf("You cannot pass more than 3 options to the 'yesno'-filter (got: '%s').", paramString), + } + } + if len(customChoices) < 2 { + return nil, &Error{ + Sender: "filter:yesno", + ErrorMsg: fmt.Sprintf("You must pass either no or at least 2 arguments to the 'yesno'-filter (got: '%s').", paramString), + } + } + + // Map to the options now + choices[0] = customChoices[0] + choices[1] = customChoices[1] + if len(customChoices) == 3 { + choices[2] = customChoices[2] + } + } + + // maybe + if in.IsNil() { + return AsValue(choices[2]), nil + } + + // yes + if in.IsTrue() { + return AsValue(choices[0]), nil + } + + // no + return AsValue(choices[1]), nil +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/helpers.go b/Godeps/_workspace/src/github.com/flosch/pongo2/helpers.go new file mode 100644 index 0000000..880dbc0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/helpers.go @@ -0,0 +1,15 @@ +package pongo2 + +func max(a, b int) int { + if a > b { + return a + } + return b +} + +func min(a, b int) int { + if a < b { + return a + } + return b +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/lexer.go b/Godeps/_workspace/src/github.com/flosch/pongo2/lexer.go new file mode 100644 index 0000000..1698e41 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/lexer.go @@ -0,0 +1,421 @@ +package pongo2 + +import ( + "fmt" + "strings" + "unicode/utf8" +) + +const ( + TokenError = iota + EOF + + TokenHTML + + TokenKeyword + TokenIdentifier + TokenString + TokenNumber + TokenSymbol +) + +var ( + tokenSpaceChars = " \n\r\t" + tokenIdentifierChars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_" + tokenIdentifierCharsWithDigits = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_0123456789" + tokenDigits = "0123456789" + + // Available symbols in pongo2 (within filters/tag) + TokenSymbols = []string{ + // 3-Char symbols + + // 2-Char symbols + "==", ">=", "<=", "&&", "||", "{{", "}}", "{%", "%}", "!=", "<>", + + // 1-Char symbol + "(", ")", "+", "-", "*", "<", ">", "/", "^", ",", ".", "!", "|", ":", "=", "%", + } + + // Available keywords in pongo2 + TokenKeywords = []string{"in", "and", "or", "not", "true", "false", "as", "export"} +) + +type TokenType int +type Token struct { + Filename string + Typ TokenType + Val string + Line int + Col int +} + +type lexerStateFn func() lexerStateFn +type lexer struct { + name string + input string + start int // start pos of the item + pos int // current pos + width int // width of last rune + tokens []*Token + errored bool + startline int + startcol int + line int + col int + + inVerbatim bool + verbatimName string +} + +func (t *Token) String() string { + val := t.Val + if len(val) > 1000 { + val = fmt.Sprintf("%s...%s", val[:10], val[len(val)-5:len(val)]) + } + + typ := "" + switch t.Typ { + case TokenHTML: + typ = "HTML" + case TokenError: + typ = "Error" + case TokenIdentifier: + typ = "Identifier" + case TokenKeyword: + typ = "Keyword" + case TokenNumber: + typ = "Number" + case TokenString: + typ = "String" + case TokenSymbol: + typ = "Symbol" + default: + typ = "Unknown" + } + + return fmt.Sprintf("", + typ, t.Typ, val, t.Line, t.Col) +} + +func lex(name string, input string) ([]*Token, *Error) { + l := &lexer{ + name: name, + input: input, + tokens: make([]*Token, 0, 100), + line: 1, + col: 1, + startline: 1, + startcol: 1, + } + l.run() + if l.errored { + errtoken := l.tokens[len(l.tokens)-1] + return nil, &Error{ + Filename: name, + Line: errtoken.Line, + Column: errtoken.Col, + Sender: "lexer", + ErrorMsg: errtoken.Val, + } + } + return l.tokens, nil +} + +func (l *lexer) value() string { + return l.input[l.start:l.pos] +} + +func (l *lexer) length() int { + return l.pos - l.start +} + +func (l *lexer) emit(t TokenType) { + tok := &Token{ + Filename: l.name, + Typ: t, + Val: l.value(), + Line: l.startline, + Col: l.startcol, + } + + if t == TokenString { + // Escape sequence \" in strings + tok.Val = strings.Replace(tok.Val, `\"`, `"`, -1) + tok.Val = strings.Replace(tok.Val, `\\`, `\`, -1) + } + + l.tokens = append(l.tokens, tok) + l.start = l.pos + l.startline = l.line + l.startcol = l.col +} + +func (l *lexer) next() rune { + if l.pos >= len(l.input) { + l.width = 0 + return EOF + } + r, w := utf8.DecodeRuneInString(l.input[l.pos:]) + l.width = w + l.pos += l.width + l.col += l.width + return r +} + +func (l *lexer) backup() { + l.pos -= l.width + l.col -= l.width +} + +func (l *lexer) peek() rune { + r := l.next() + l.backup() + return r +} + +func (l *lexer) ignore() { + l.start = l.pos + l.startline = l.line + l.startcol = l.col +} + +func (l *lexer) accept(what string) bool { + if strings.IndexRune(what, l.next()) >= 0 { + return true + } + l.backup() + return false +} + +func (l *lexer) acceptRun(what string) { + for strings.IndexRune(what, l.next()) >= 0 { + } + l.backup() +} + +func (l *lexer) errorf(format string, args ...interface{}) lexerStateFn { + t := &Token{ + Filename: l.name, + Typ: TokenError, + Val: fmt.Sprintf(format, args...), + Line: l.startline, + Col: l.startcol, + } + l.tokens = append(l.tokens, t) + l.errored = true + l.startline = l.line + l.startcol = l.col + return nil +} + +func (l *lexer) eof() bool { + return l.start >= len(l.input)-1 +} + +func (l *lexer) run() { + for { + // TODO: Support verbatim tag names + // https://docs.djangoproject.com/en/dev/ref/templates/builtins/#verbatim + if l.inVerbatim { + name := l.verbatimName + if name != "" { + name += " " + } + if strings.HasPrefix(l.input[l.pos:], fmt.Sprintf("{%% endverbatim %s%%}", name)) { // end verbatim + if l.pos > l.start { + l.emit(TokenHTML) + } + w := len("{% endverbatim %}") + l.pos += w + l.col += w + l.ignore() + l.inVerbatim = false + } + } else if strings.HasPrefix(l.input[l.pos:], "{% verbatim %}") { // tag + if l.pos > l.start { + l.emit(TokenHTML) + } + l.inVerbatim = true + w := len("{% verbatim %}") + l.pos += w + l.col += w + l.ignore() + } + + if !l.inVerbatim { + // Ignore single-line comments {# ... #} + if strings.HasPrefix(l.input[l.pos:], "{#") { + if l.pos > l.start { + l.emit(TokenHTML) + } + + l.pos += 2 // pass '{#' + l.col += 2 + + for { + switch l.peek() { + case EOF: + l.errorf("Single-line comment not closed.") + return + case '\n': + l.errorf("Newline not permitted in a single-line comment.") + return + } + + if strings.HasPrefix(l.input[l.pos:], "#}") { + l.pos += 2 // pass '#}' + l.col += 2 + break + } + + l.next() + } + l.ignore() // ignore whole comment + + // Comment skipped + continue // next token + } + + if strings.HasPrefix(l.input[l.pos:], "{{") || // variable + strings.HasPrefix(l.input[l.pos:], "{%") { // tag + if l.pos > l.start { + l.emit(TokenHTML) + } + l.tokenize() + if l.errored { + return + } + continue + } + } + + switch l.peek() { + case '\n': + l.line++ + l.col = 0 + } + if l.next() == EOF { + break + } + } + + if l.pos > l.start { + l.emit(TokenHTML) + } + + if l.inVerbatim { + l.errorf("verbatim-tag not closed, got EOF.") + } +} + +func (l *lexer) tokenize() { + for state := l.stateCode; state != nil; { + state = state() + } +} + +func (l *lexer) stateCode() lexerStateFn { +outer_loop: + for { + switch { + case l.accept(tokenSpaceChars): + if l.value() == "\n" { + return l.errorf("Newline not allowed within tag/variable.") + } + l.ignore() + continue + case l.accept(tokenIdentifierChars): + return l.stateIdentifier + case l.accept(tokenDigits): + return l.stateNumber + case l.accept(`"`): + return l.stateString + } + + // Check for symbol + for _, sym := range TokenSymbols { + if strings.HasPrefix(l.input[l.start:], sym) { + l.pos += len(sym) + l.col += l.length() + l.emit(TokenSymbol) + + if sym == "%}" || sym == "}}" { + // Tag/variable end, return after emit + return nil + } + + continue outer_loop + } + } + + if l.pos < len(l.input) { + return l.errorf("Unknown character: %q (%d)", l.peek(), l.peek()) + } + + break + } + + // Normal shut down + return nil +} + +func (l *lexer) stateIdentifier() lexerStateFn { + l.acceptRun(tokenIdentifierChars) + l.acceptRun(tokenIdentifierCharsWithDigits) + for _, kw := range TokenKeywords { + if kw == l.value() { + l.emit(TokenKeyword) + return l.stateCode + } + } + l.emit(TokenIdentifier) + return l.stateCode +} + +func (l *lexer) stateNumber() lexerStateFn { + l.acceptRun(tokenDigits) + /* + Maybe context-sensitive number lexing? + * comments.0.Text // first comment + * usercomments.1.0 // second user, first comment + * if (score >= 8.5) // 8.5 as a number + + if l.peek() == '.' { + l.accept(".") + if !l.accept(tokenDigits) { + return l.errorf("Malformed number.") + } + l.acceptRun(tokenDigits) + } + */ + l.emit(TokenNumber) + return l.stateCode +} + +func (l *lexer) stateString() lexerStateFn { + l.ignore() + l.startcol-- // we're starting the position at the first " + for !l.accept(`"`) { + switch l.next() { + case '\\': + // escape sequence + switch l.peek() { + case '"', '\\': + l.next() + default: + return l.errorf("Unknown escape sequence: \\%c", l.peek()) + } + case EOF: + return l.errorf("Unexpected EOF, string not closed.") + case '\n': + return l.errorf("Newline in string is not allowed.") + } + } + l.backup() + l.emit(TokenString) + + l.next() + l.ignore() + + return l.stateCode +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/nodes.go b/Godeps/_workspace/src/github.com/flosch/pongo2/nodes.go new file mode 100644 index 0000000..5b039cd --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/nodes.go @@ -0,0 +1,16 @@ +package pongo2 + +// The root document +type nodeDocument struct { + Nodes []INode +} + +func (doc *nodeDocument) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + for _, n := range doc.Nodes { + err := n.Execute(ctx, writer) + if err != nil { + return err + } + } + return nil +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/nodes_html.go b/Godeps/_workspace/src/github.com/flosch/pongo2/nodes_html.go new file mode 100644 index 0000000..9680285 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/nodes_html.go @@ -0,0 +1,10 @@ +package pongo2 + +type nodeHTML struct { + token *Token +} + +func (n *nodeHTML) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + writer.WriteString(n.token.Val) + return nil +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/nodes_wrapper.go b/Godeps/_workspace/src/github.com/flosch/pongo2/nodes_wrapper.go new file mode 100644 index 0000000..d1bcb8d --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/nodes_wrapper.go @@ -0,0 +1,16 @@ +package pongo2 + +type NodeWrapper struct { + Endtag string + nodes []INode +} + +func (wrapper *NodeWrapper) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + for _, n := range wrapper.nodes { + err := n.Execute(ctx, writer) + if err != nil { + return err + } + } + return nil +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/parser.go b/Godeps/_workspace/src/github.com/flosch/pongo2/parser.go new file mode 100644 index 0000000..bed5061 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/parser.go @@ -0,0 +1,265 @@ +package pongo2 + +import ( + "fmt" + "strings" +) + +type INode interface { + Execute(*ExecutionContext, TemplateWriter) *Error +} + +type IEvaluator interface { + INode + GetPositionToken() *Token + Evaluate(*ExecutionContext) (*Value, *Error) + FilterApplied(name string) bool +} + +// The parser provides you a comprehensive and easy tool to +// work with the template document and arguments provided by +// the user for your custom tag. +// +// The parser works on a token list which will be provided by pongo2. +// A token is a unit you can work with. Tokens are either of type identifier, +// string, number, keyword, HTML or symbol. +// +// (See Token's documentation for more about tokens) +type Parser struct { + name string + idx int + tokens []*Token + lastToken *Token + + // if the parser parses a template document, here will be + // a reference to it (needed to access the template through Tags) + template *Template +} + +// Creates a new parser to parse tokens. +// Used inside pongo2 to parse documents and to provide an easy-to-use +// parser for tag authors +func newParser(name string, tokens []*Token, template *Template) *Parser { + p := &Parser{ + name: name, + tokens: tokens, + template: template, + } + if len(tokens) > 0 { + p.lastToken = tokens[len(tokens)-1] + } + return p +} + +// Consume one token. It will be gone forever. +func (p *Parser) Consume() { + p.ConsumeN(1) +} + +// Consume N tokens. They will be gone forever. +func (p *Parser) ConsumeN(count int) { + p.idx += count +} + +// Returns the current token. +func (p *Parser) Current() *Token { + return p.Get(p.idx) +} + +// Returns the CURRENT token if the given type matches. +// Consumes this token on success. +func (p *Parser) MatchType(typ TokenType) *Token { + if t := p.PeekType(typ); t != nil { + p.Consume() + return t + } + return nil +} + +// Returns the CURRENT token if the given type AND value matches. +// Consumes this token on success. +func (p *Parser) Match(typ TokenType, val string) *Token { + if t := p.Peek(typ, val); t != nil { + p.Consume() + return t + } + return nil +} + +// Returns the CURRENT token if the given type AND *one* of +// the given values matches. +// Consumes this token on success. +func (p *Parser) MatchOne(typ TokenType, vals ...string) *Token { + for _, val := range vals { + if t := p.Peek(typ, val); t != nil { + p.Consume() + return t + } + } + return nil +} + +// Returns the CURRENT token if the given type matches. +// It DOES NOT consume the token. +func (p *Parser) PeekType(typ TokenType) *Token { + return p.PeekTypeN(0, typ) +} + +// Returns the CURRENT token if the given type AND value matches. +// It DOES NOT consume the token. +func (p *Parser) Peek(typ TokenType, val string) *Token { + return p.PeekN(0, typ, val) +} + +// Returns the CURRENT token if the given type AND *one* of +// the given values matches. +// It DOES NOT consume the token. +func (p *Parser) PeekOne(typ TokenType, vals ...string) *Token { + for _, v := range vals { + t := p.PeekN(0, typ, v) + if t != nil { + return t + } + } + return nil +} + +// Returns the tokens[current position + shift] token if the +// given type AND value matches for that token. +// DOES NOT consume the token. +func (p *Parser) PeekN(shift int, typ TokenType, val string) *Token { + t := p.Get(p.idx + shift) + if t != nil { + if t.Typ == typ && t.Val == val { + return t + } + } + return nil +} + +// Returns the tokens[current position + shift] token if the given type matches. +// DOES NOT consume the token for that token. +func (p *Parser) PeekTypeN(shift int, typ TokenType) *Token { + t := p.Get(p.idx + shift) + if t != nil { + if t.Typ == typ { + return t + } + } + return nil +} + +// Returns the UNCONSUMED token count. +func (p *Parser) Remaining() int { + return len(p.tokens) - p.idx +} + +// Returns the total token count. +func (p *Parser) Count() int { + return len(p.tokens) +} + +// Returns tokens[i] or NIL (if i >= len(tokens)) +func (p *Parser) Get(i int) *Token { + if i < len(p.tokens) { + return p.tokens[i] + } + return nil +} + +// Returns tokens[current-position + shift] or NIL +// (if (current-position + i) >= len(tokens)) +func (p *Parser) GetR(shift int) *Token { + i := p.idx + shift + return p.Get(i) +} + +// Produces a nice error message and returns an error-object. +// The 'token'-argument is optional. If provided, it will take +// the token's position information. If not provided, it will +// automatically use the CURRENT token's position information. +func (p *Parser) Error(msg string, token *Token) *Error { + if token == nil { + // Set current token + token = p.Current() + if token == nil { + // Set to last token + if len(p.tokens) > 0 { + token = p.tokens[len(p.tokens)-1] + } + } + } + var line, col int + if token != nil { + line = token.Line + col = token.Col + } + return &Error{ + Template: p.template, + Filename: p.name, + Sender: "parser", + Line: line, + Column: col, + Token: token, + ErrorMsg: msg, + } +} + +// Wraps all nodes between starting tag and "{% endtag %}" and provides +// one simple interface to execute the wrapped nodes. +// It returns a parser to process provided arguments to the tag. +func (p *Parser) WrapUntilTag(names ...string) (*NodeWrapper, *Parser, *Error) { + wrapper := &NodeWrapper{} + + var tagArgs []*Token + + for p.Remaining() > 0 { + // New tag, check whether we have to stop wrapping here + if p.Peek(TokenSymbol, "{%") != nil { + tagIdent := p.PeekTypeN(1, TokenIdentifier) + + if tagIdent != nil { + // We've found a (!) end-tag + + found := false + for _, n := range names { + if tagIdent.Val == n { + found = true + break + } + } + + // We only process the tag if we've found an end tag + if found { + // Okay, endtag found. + p.ConsumeN(2) // '{%' tagname + + for { + if p.Match(TokenSymbol, "%}") != nil { + // Okay, end the wrapping here + wrapper.Endtag = tagIdent.Val + return wrapper, newParser(p.template.name, tagArgs, p.template), nil + } + t := p.Current() + p.Consume() + if t == nil { + return nil, nil, p.Error("Unexpected EOF.", p.lastToken) + } + tagArgs = append(tagArgs, t) + } + } + } + + } + + // Otherwise process next element to be wrapped + node, err := p.parseDocElement() + if err != nil { + return nil, nil, err + } + wrapper.nodes = append(wrapper.nodes, node) + } + + return nil, nil, p.Error(fmt.Sprintf("Unexpected EOF, expected tag %s.", strings.Join(names, " or ")), + p.lastToken) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/parser_document.go b/Godeps/_workspace/src/github.com/flosch/pongo2/parser_document.go new file mode 100644 index 0000000..4ab8b93 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/parser_document.go @@ -0,0 +1,54 @@ +package pongo2 + +// Doc = { ( Filter | Tag | HTML ) } +func (p *Parser) parseDocElement() (INode, *Error) { + t := p.Current() + + switch t.Typ { + case TokenHTML: + p.Consume() // consume HTML element + return &nodeHTML{token: t}, nil + case TokenSymbol: + switch t.Val { + case "{{": + // parse variable + variable, err := p.parseVariableElement() + if err != nil { + return nil, err + } + return variable, nil + case "{%": + // parse tag + tag, err := p.parseTagElement() + if err != nil { + return nil, err + } + return tag, nil + } + } + return nil, p.Error("Unexpected token (only HTML/tags/filters in templates allowed)", t) +} + +func (tpl *Template) parse() *Error { + tpl.parser = newParser(tpl.name, tpl.tokens, tpl) + doc, err := tpl.parser.parseDocument() + if err != nil { + return err + } + tpl.root = doc + return nil +} + +func (p *Parser) parseDocument() (*nodeDocument, *Error) { + doc := &nodeDocument{} + + for p.Remaining() > 0 { + node, err := p.parseDocElement() + if err != nil { + return nil, err + } + doc.Nodes = append(doc.Nodes, node) + } + + return doc, nil +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/parser_expression.go b/Godeps/_workspace/src/github.com/flosch/pongo2/parser_expression.go new file mode 100644 index 0000000..98c6580 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/parser_expression.go @@ -0,0 +1,491 @@ +package pongo2 + +import ( + "fmt" + "math" +) + +type Expression struct { + // TODO: Add location token? + expr1 IEvaluator + expr2 IEvaluator + opToken *Token +} + +type relationalExpression struct { + // TODO: Add location token? + expr1 IEvaluator + expr2 IEvaluator + opToken *Token +} + +type simpleExpression struct { + negate bool + negativeSign bool + term1 IEvaluator + term2 IEvaluator + opToken *Token +} + +type term struct { + // TODO: Add location token? + factor1 IEvaluator + factor2 IEvaluator + opToken *Token +} + +type power struct { + // TODO: Add location token? + power1 IEvaluator + power2 IEvaluator +} + +func (expr *Expression) FilterApplied(name string) bool { + return expr.expr1.FilterApplied(name) && (expr.expr2 == nil || + (expr.expr2 != nil && expr.expr2.FilterApplied(name))) +} + +func (expr *relationalExpression) FilterApplied(name string) bool { + return expr.expr1.FilterApplied(name) && (expr.expr2 == nil || + (expr.expr2 != nil && expr.expr2.FilterApplied(name))) +} + +func (expr *simpleExpression) FilterApplied(name string) bool { + return expr.term1.FilterApplied(name) && (expr.term2 == nil || + (expr.term2 != nil && expr.term2.FilterApplied(name))) +} + +func (expr *term) FilterApplied(name string) bool { + return expr.factor1.FilterApplied(name) && (expr.factor2 == nil || + (expr.factor2 != nil && expr.factor2.FilterApplied(name))) +} + +func (expr *power) FilterApplied(name string) bool { + return expr.power1.FilterApplied(name) && (expr.power2 == nil || + (expr.power2 != nil && expr.power2.FilterApplied(name))) +} + +func (expr *Expression) GetPositionToken() *Token { + return expr.expr1.GetPositionToken() +} + +func (expr *relationalExpression) GetPositionToken() *Token { + return expr.expr1.GetPositionToken() +} + +func (expr *simpleExpression) GetPositionToken() *Token { + return expr.term1.GetPositionToken() +} + +func (expr *term) GetPositionToken() *Token { + return expr.factor1.GetPositionToken() +} + +func (expr *power) GetPositionToken() *Token { + return expr.power1.GetPositionToken() +} + +func (expr *Expression) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + value, err := expr.Evaluate(ctx) + if err != nil { + return err + } + writer.WriteString(value.String()) + return nil +} + +func (expr *relationalExpression) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + value, err := expr.Evaluate(ctx) + if err != nil { + return err + } + writer.WriteString(value.String()) + return nil +} + +func (expr *simpleExpression) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + value, err := expr.Evaluate(ctx) + if err != nil { + return err + } + writer.WriteString(value.String()) + return nil +} + +func (expr *term) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + value, err := expr.Evaluate(ctx) + if err != nil { + return err + } + writer.WriteString(value.String()) + return nil +} + +func (expr *power) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + value, err := expr.Evaluate(ctx) + if err != nil { + return err + } + writer.WriteString(value.String()) + return nil +} + +func (expr *Expression) Evaluate(ctx *ExecutionContext) (*Value, *Error) { + v1, err := expr.expr1.Evaluate(ctx) + if err != nil { + return nil, err + } + if expr.expr2 != nil { + v2, err := expr.expr2.Evaluate(ctx) + if err != nil { + return nil, err + } + switch expr.opToken.Val { + case "and", "&&": + return AsValue(v1.IsTrue() && v2.IsTrue()), nil + case "or", "||": + return AsValue(v1.IsTrue() || v2.IsTrue()), nil + default: + panic(fmt.Sprintf("unimplemented: %s", expr.opToken.Val)) + } + } else { + return v1, nil + } +} + +func (expr *relationalExpression) Evaluate(ctx *ExecutionContext) (*Value, *Error) { + v1, err := expr.expr1.Evaluate(ctx) + if err != nil { + return nil, err + } + if expr.expr2 != nil { + v2, err := expr.expr2.Evaluate(ctx) + if err != nil { + return nil, err + } + switch expr.opToken.Val { + case "<=": + if v1.IsFloat() || v2.IsFloat() { + return AsValue(v1.Float() <= v2.Float()), nil + } + return AsValue(v1.Integer() <= v2.Integer()), nil + case ">=": + if v1.IsFloat() || v2.IsFloat() { + return AsValue(v1.Float() >= v2.Float()), nil + } + return AsValue(v1.Integer() >= v2.Integer()), nil + case "==": + return AsValue(v1.EqualValueTo(v2)), nil + case ">": + if v1.IsFloat() || v2.IsFloat() { + return AsValue(v1.Float() > v2.Float()), nil + } + return AsValue(v1.Integer() > v2.Integer()), nil + case "<": + if v1.IsFloat() || v2.IsFloat() { + return AsValue(v1.Float() < v2.Float()), nil + } + return AsValue(v1.Integer() < v2.Integer()), nil + case "!=", "<>": + return AsValue(!v1.EqualValueTo(v2)), nil + case "in": + return AsValue(v2.Contains(v1)), nil + default: + panic(fmt.Sprintf("unimplemented: %s", expr.opToken.Val)) + } + } else { + return v1, nil + } +} + +func (expr *simpleExpression) Evaluate(ctx *ExecutionContext) (*Value, *Error) { + t1, err := expr.term1.Evaluate(ctx) + if err != nil { + return nil, err + } + result := t1 + + if expr.negate { + result = result.Negate() + } + + if expr.negativeSign { + if result.IsNumber() { + switch { + case result.IsFloat(): + result = AsValue(-1 * result.Float()) + case result.IsInteger(): + result = AsValue(-1 * result.Integer()) + default: + panic("not possible") + } + } else { + return nil, ctx.Error("Negative sign on a non-number expression", expr.GetPositionToken()) + } + } + + if expr.term2 != nil { + t2, err := expr.term2.Evaluate(ctx) + if err != nil { + return nil, err + } + switch expr.opToken.Val { + case "+": + if result.IsFloat() || t2.IsFloat() { + // Result will be a float + return AsValue(result.Float() + t2.Float()), nil + } + // Result will be an integer + return AsValue(result.Integer() + t2.Integer()), nil + case "-": + if result.IsFloat() || t2.IsFloat() { + // Result will be a float + return AsValue(result.Float() - t2.Float()), nil + } + // Result will be an integer + return AsValue(result.Integer() - t2.Integer()), nil + default: + panic("unimplemented") + } + } + + return result, nil +} + +func (expr *term) Evaluate(ctx *ExecutionContext) (*Value, *Error) { + f1, err := expr.factor1.Evaluate(ctx) + if err != nil { + return nil, err + } + if expr.factor2 != nil { + f2, err := expr.factor2.Evaluate(ctx) + if err != nil { + return nil, err + } + switch expr.opToken.Val { + case "*": + if f1.IsFloat() || f2.IsFloat() { + // Result will be float + return AsValue(f1.Float() * f2.Float()), nil + } + // Result will be int + return AsValue(f1.Integer() * f2.Integer()), nil + case "/": + if f1.IsFloat() || f2.IsFloat() { + // Result will be float + return AsValue(f1.Float() / f2.Float()), nil + } + // Result will be int + return AsValue(f1.Integer() / f2.Integer()), nil + case "%": + // Result will be int + return AsValue(f1.Integer() % f2.Integer()), nil + default: + panic("unimplemented") + } + } else { + return f1, nil + } +} + +func (expr *power) Evaluate(ctx *ExecutionContext) (*Value, *Error) { + p1, err := expr.power1.Evaluate(ctx) + if err != nil { + return nil, err + } + if expr.power2 != nil { + p2, err := expr.power2.Evaluate(ctx) + if err != nil { + return nil, err + } + return AsValue(math.Pow(p1.Float(), p2.Float())), nil + } + return p1, nil +} + +func (p *Parser) parseFactor() (IEvaluator, *Error) { + if p.Match(TokenSymbol, "(") != nil { + expr, err := p.ParseExpression() + if err != nil { + return nil, err + } + if p.Match(TokenSymbol, ")") == nil { + return nil, p.Error("Closing bracket expected after expression", nil) + } + return expr, nil + } + + return p.parseVariableOrLiteralWithFilter() +} + +func (p *Parser) parsePower() (IEvaluator, *Error) { + pw := new(power) + + power1, err := p.parseFactor() + if err != nil { + return nil, err + } + pw.power1 = power1 + + if p.Match(TokenSymbol, "^") != nil { + power2, err := p.parsePower() + if err != nil { + return nil, err + } + pw.power2 = power2 + } + + if pw.power2 == nil { + // Shortcut for faster evaluation + return pw.power1, nil + } + + return pw, nil +} + +func (p *Parser) parseTerm() (IEvaluator, *Error) { + returnTerm := new(term) + + factor1, err := p.parsePower() + if err != nil { + return nil, err + } + returnTerm.factor1 = factor1 + + for p.PeekOne(TokenSymbol, "*", "/", "%") != nil { + if returnTerm.opToken != nil { + // Create new sub-term + returnTerm = &term{ + factor1: returnTerm, + } + } + + op := p.Current() + p.Consume() + + factor2, err := p.parsePower() + if err != nil { + return nil, err + } + + returnTerm.opToken = op + returnTerm.factor2 = factor2 + } + + if returnTerm.opToken == nil { + // Shortcut for faster evaluation + return returnTerm.factor1, nil + } + + return returnTerm, nil +} + +func (p *Parser) parseSimpleExpression() (IEvaluator, *Error) { + expr := new(simpleExpression) + + if sign := p.MatchOne(TokenSymbol, "+", "-"); sign != nil { + if sign.Val == "-" { + expr.negativeSign = true + } + } + + if p.Match(TokenSymbol, "!") != nil || p.Match(TokenKeyword, "not") != nil { + expr.negate = true + } + + term1, err := p.parseTerm() + if err != nil { + return nil, err + } + expr.term1 = term1 + + for p.PeekOne(TokenSymbol, "+", "-") != nil { + if expr.opToken != nil { + // New sub expr + expr = &simpleExpression{ + term1: expr, + } + } + + op := p.Current() + p.Consume() + + term2, err := p.parseTerm() + if err != nil { + return nil, err + } + + expr.term2 = term2 + expr.opToken = op + } + + if expr.negate == false && expr.negativeSign == false && expr.term2 == nil { + // Shortcut for faster evaluation + return expr.term1, nil + } + + return expr, nil +} + +func (p *Parser) parseRelationalExpression() (IEvaluator, *Error) { + expr1, err := p.parseSimpleExpression() + if err != nil { + return nil, err + } + + expr := &relationalExpression{ + expr1: expr1, + } + + if t := p.MatchOne(TokenSymbol, "==", "<=", ">=", "!=", "<>", ">", "<"); t != nil { + expr2, err := p.parseRelationalExpression() + if err != nil { + return nil, err + } + expr.opToken = t + expr.expr2 = expr2 + } else if t := p.MatchOne(TokenKeyword, "in"); t != nil { + expr2, err := p.parseSimpleExpression() + if err != nil { + return nil, err + } + expr.opToken = t + expr.expr2 = expr2 + } + + if expr.expr2 == nil { + // Shortcut for faster evaluation + return expr.expr1, nil + } + + return expr, nil +} + +func (p *Parser) ParseExpression() (IEvaluator, *Error) { + rexpr1, err := p.parseRelationalExpression() + if err != nil { + return nil, err + } + + exp := &Expression{ + expr1: rexpr1, + } + + if p.PeekOne(TokenSymbol, "&&", "||") != nil || p.PeekOne(TokenKeyword, "and", "or") != nil { + op := p.Current() + p.Consume() + expr2, err := p.ParseExpression() + if err != nil { + return nil, err + } + exp.expr2 = expr2 + exp.opToken = op + } + + if exp.expr2 == nil { + // Shortcut for faster evaluation + return exp.expr1, nil + } + + return exp, nil +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/pongo2.go b/Godeps/_workspace/src/github.com/flosch/pongo2/pongo2.go new file mode 100644 index 0000000..eda3aa0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/pongo2.go @@ -0,0 +1,14 @@ +package pongo2 + +// Version string +const Version = "dev" + +// Must panics, if a Template couldn't successfully parsed. This is how you +// would use it: +// var baseTemplate = pongo2.Must(pongo2.FromFile("templates/base.html")) +func Must(tpl *Template, err error) *Template { + if err != nil { + panic(err) + } + return tpl +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags.go new file mode 100644 index 0000000..5168d17 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags.go @@ -0,0 +1,132 @@ +package pongo2 + +/* Incomplete: + ----------- + + verbatim (only the "name" argument is missing for verbatim) + + Reconsideration: + ---------------- + + debug (reason: not sure what to output yet) + regroup / Grouping on other properties (reason: maybe too python-specific; not sure how useful this would be in Go) + + Following built-in tags wont be added: + -------------------------------------- + + csrf_token (reason: web-framework specific) + load (reason: python-specific) + url (reason: web-framework specific) +*/ + +import ( + "fmt" +) + +type INodeTag interface { + INode +} + +// This is the function signature of the tag's parser you will have +// to implement in order to create a new tag. +// +// 'doc' is providing access to the whole document while 'arguments' +// is providing access to the user's arguments to the tag: +// +// {% your_tag_name some "arguments" 123 %} +// +// start_token will be the *Token with the tag's name in it (here: your_tag_name). +// +// Please see the Parser documentation on how to use the parser. +// See RegisterTag()'s documentation for more information about +// writing a tag as well. +type TagParser func(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) + +type tag struct { + name string + parser TagParser +} + +var tags map[string]*tag + +func init() { + tags = make(map[string]*tag) +} + +// Registers a new tag. If there's already a tag with the same +// name, RegisterTag will panic. You usually want to call this +// function in the tag's init() function: +// http://golang.org/doc/effective_go.html#init +// +// See http://www.florian-schlachter.de/post/pongo2/ for more about +// writing filters and tags. +func RegisterTag(name string, parserFn TagParser) { + _, existing := tags[name] + if existing { + panic(fmt.Sprintf("Tag with name '%s' is already registered.", name)) + } + tags[name] = &tag{ + name: name, + parser: parserFn, + } +} + +// Replaces an already registered tag with a new implementation. Use this +// function with caution since it allows you to change existing tag behaviour. +func ReplaceTag(name string, parserFn TagParser) { + _, existing := tags[name] + if !existing { + panic(fmt.Sprintf("Tag with name '%s' does not exist (therefore cannot be overridden).", name)) + } + tags[name] = &tag{ + name: name, + parser: parserFn, + } +} + +// Tag = "{%" IDENT ARGS "%}" +func (p *Parser) parseTagElement() (INodeTag, *Error) { + p.Consume() // consume "{%" + tokenName := p.MatchType(TokenIdentifier) + + // Check for identifier + if tokenName == nil { + return nil, p.Error("Tag name must be an identifier.", nil) + } + + // Check for the existing tag + tag, exists := tags[tokenName.Val] + if !exists { + // Does not exists + return nil, p.Error(fmt.Sprintf("Tag '%s' not found (or beginning tag not provided)", tokenName.Val), tokenName) + } + + // Check sandbox tag restriction + if _, isBanned := p.template.set.bannedTags[tokenName.Val]; isBanned { + return nil, p.Error(fmt.Sprintf("Usage of tag '%s' is not allowed (sandbox restriction active).", tokenName.Val), tokenName) + } + + var argsToken []*Token + for p.Peek(TokenSymbol, "%}") == nil && p.Remaining() > 0 { + // Add token to args + argsToken = append(argsToken, p.Current()) + p.Consume() // next token + } + + // EOF? + if p.Remaining() == 0 { + return nil, p.Error("Unexpectedly reached EOF, no tag end found.", p.lastToken) + } + + p.Match(TokenSymbol, "%}") + + argParser := newParser(p.name, argsToken, p.template) + if len(argsToken) == 0 { + // This is done to have nice EOF error messages + argParser.lastToken = tokenName + } + + p.template.level++ + defer func() { p.template.level-- }() + return tag.parser(p, tokenName, argParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_autoescape.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_autoescape.go new file mode 100644 index 0000000..590a1db --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_autoescape.go @@ -0,0 +1,52 @@ +package pongo2 + +type tagAutoescapeNode struct { + wrapper *NodeWrapper + autoescape bool +} + +func (node *tagAutoescapeNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + old := ctx.Autoescape + ctx.Autoescape = node.autoescape + + err := node.wrapper.Execute(ctx, writer) + if err != nil { + return err + } + + ctx.Autoescape = old + + return nil +} + +func tagAutoescapeParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + autoescapeNode := &tagAutoescapeNode{} + + wrapper, _, err := doc.WrapUntilTag("endautoescape") + if err != nil { + return nil, err + } + autoescapeNode.wrapper = wrapper + + modeToken := arguments.MatchType(TokenIdentifier) + if modeToken == nil { + return nil, arguments.Error("A mode is required for autoescape-tag.", nil) + } + if modeToken.Val == "on" { + autoescapeNode.autoescape = true + } else if modeToken.Val == "off" { + autoescapeNode.autoescape = false + } else { + return nil, arguments.Error("Only 'on' or 'off' is valid as an autoescape-mode.", nil) + } + + if arguments.Remaining() > 0 { + return nil, arguments.Error("Malformed autoescape-tag arguments.", nil) + } + + return autoescapeNode, nil +} + +func init() { + RegisterTag("autoescape", tagAutoescapeParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_block.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_block.go new file mode 100644 index 0000000..b558930 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_block.go @@ -0,0 +1,93 @@ +package pongo2 + +import ( + "fmt" +) + +type tagBlockNode struct { + name string +} + +func (node *tagBlockNode) getBlockWrapperByName(tpl *Template) *NodeWrapper { + var t *NodeWrapper + if tpl.child != nil { + // First ask the child for the block + t = node.getBlockWrapperByName(tpl.child) + } + if t == nil { + // Child has no block, lets look up here at parent + t = tpl.blocks[node.name] + } + return t +} + +func (node *tagBlockNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + tpl := ctx.template + if tpl == nil { + panic("internal error: tpl == nil") + } + // Determine the block to execute + blockWrapper := node.getBlockWrapperByName(tpl) + if blockWrapper == nil { + // fmt.Printf("could not find: %s\n", node.name) + return ctx.Error("internal error: block_wrapper == nil in tagBlockNode.Execute()", nil) + } + err := blockWrapper.Execute(ctx, writer) + if err != nil { + return err + } + + // TODO: Add support for {{ block.super }} + + return nil +} + +func tagBlockParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + if arguments.Count() == 0 { + return nil, arguments.Error("Tag 'block' requires an identifier.", nil) + } + + nameToken := arguments.MatchType(TokenIdentifier) + if nameToken == nil { + return nil, arguments.Error("First argument for tag 'block' must be an identifier.", nil) + } + + if arguments.Remaining() != 0 { + return nil, arguments.Error("Tag 'block' takes exactly 1 argument (an identifier).", nil) + } + + wrapper, endtagargs, err := doc.WrapUntilTag("endblock") + if err != nil { + return nil, err + } + if endtagargs.Remaining() > 0 { + endtagnameToken := endtagargs.MatchType(TokenIdentifier) + if endtagnameToken != nil { + if endtagnameToken.Val != nameToken.Val { + return nil, endtagargs.Error(fmt.Sprintf("Name for 'endblock' must equal to 'block'-tag's name ('%s' != '%s').", + nameToken.Val, endtagnameToken.Val), nil) + } + } + + if endtagnameToken == nil || endtagargs.Remaining() > 0 { + return nil, endtagargs.Error("Either no or only one argument (identifier) allowed for 'endblock'.", nil) + } + } + + tpl := doc.template + if tpl == nil { + panic("internal error: tpl == nil") + } + _, hasBlock := tpl.blocks[nameToken.Val] + if !hasBlock { + tpl.blocks[nameToken.Val] = wrapper + } else { + return nil, arguments.Error(fmt.Sprintf("Block named '%s' already defined", nameToken.Val), nil) + } + + return &tagBlockNode{name: nameToken.Val}, nil +} + +func init() { + RegisterTag("block", tagBlockParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_comment.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_comment.go new file mode 100644 index 0000000..a66a973 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_comment.go @@ -0,0 +1,27 @@ +package pongo2 + +type tagCommentNode struct{} + +func (node *tagCommentNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + return nil +} + +func tagCommentParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + commentNode := &tagCommentNode{} + + // TODO: Process the endtag's arguments (see django 'comment'-tag documentation) + _, _, err := doc.WrapUntilTag("endcomment") + if err != nil { + return nil, err + } + + if arguments.Count() != 0 { + return nil, arguments.Error("Tag 'comment' does not take any argument.", nil) + } + + return commentNode, nil +} + +func init() { + RegisterTag("comment", tagCommentParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_cycle.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_cycle.go new file mode 100644 index 0000000..9b83b9b --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_cycle.go @@ -0,0 +1,106 @@ +package pongo2 + +type tagCycleValue struct { + node *tagCycleNode + value *Value +} + +type tagCycleNode struct { + position *Token + args []IEvaluator + idx int + asName string + silent bool +} + +func (cv *tagCycleValue) String() string { + return cv.value.String() +} + +func (node *tagCycleNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + item := node.args[node.idx%len(node.args)] + node.idx++ + + val, err := item.Evaluate(ctx) + if err != nil { + return err + } + + if t, ok := val.Interface().(*tagCycleValue); ok { + // {% cycle "test1" "test2" + // {% cycle cycleitem %} + + // Update the cycle value with next value + item := t.node.args[t.node.idx%len(t.node.args)] + t.node.idx++ + + val, err := item.Evaluate(ctx) + if err != nil { + return err + } + + t.value = val + + if !t.node.silent { + writer.WriteString(val.String()) + } + } else { + // Regular call + + cycleValue := &tagCycleValue{ + node: node, + value: val, + } + + if node.asName != "" { + ctx.Private[node.asName] = cycleValue + } + if !node.silent { + writer.WriteString(val.String()) + } + } + + return nil +} + +// HINT: We're not supporting the old comma-seperated list of expresions argument-style +func tagCycleParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + cycleNode := &tagCycleNode{ + position: start, + } + + for arguments.Remaining() > 0 { + node, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + cycleNode.args = append(cycleNode.args, node) + + if arguments.MatchOne(TokenKeyword, "as") != nil { + // as + + nameToken := arguments.MatchType(TokenIdentifier) + if nameToken == nil { + return nil, arguments.Error("Name (identifier) expected after 'as'.", nil) + } + cycleNode.asName = nameToken.Val + + if arguments.MatchOne(TokenIdentifier, "silent") != nil { + cycleNode.silent = true + } + + // Now we're finished + break + } + } + + if arguments.Remaining() > 0 { + return nil, arguments.Error("Malformed cycle-tag.", nil) + } + + return cycleNode, nil +} + +func init() { + RegisterTag("cycle", tagCycleParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_extends.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_extends.go new file mode 100644 index 0000000..5771020 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_extends.go @@ -0,0 +1,52 @@ +package pongo2 + +type tagExtendsNode struct { + filename string +} + +func (node *tagExtendsNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + return nil +} + +func tagExtendsParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + extendsNode := &tagExtendsNode{} + + if doc.template.level > 1 { + return nil, arguments.Error("The 'extends' tag can only defined on root level.", start) + } + + if doc.template.parent != nil { + // Already one parent + return nil, arguments.Error("This template has already one parent.", start) + } + + if filenameToken := arguments.MatchType(TokenString); filenameToken != nil { + // prepared, static template + + // Get parent's filename + parentFilename := doc.template.set.resolveFilename(doc.template, filenameToken.Val) + + // Parse the parent + parentTemplate, err := doc.template.set.FromFile(parentFilename) + if err != nil { + return nil, err.(*Error) + } + + // Keep track of things + parentTemplate.child = doc.template + doc.template.parent = parentTemplate + extendsNode.filename = parentFilename + } else { + return nil, arguments.Error("Tag 'extends' requires a template filename as string.", nil) + } + + if arguments.Remaining() > 0 { + return nil, arguments.Error("Tag 'extends' does only take 1 argument.", nil) + } + + return extendsNode, nil +} + +func init() { + RegisterTag("extends", tagExtendsParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_filter.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_filter.go new file mode 100644 index 0000000..b38fd92 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_filter.go @@ -0,0 +1,95 @@ +package pongo2 + +import ( + "bytes" +) + +type nodeFilterCall struct { + name string + paramExpr IEvaluator +} + +type tagFilterNode struct { + position *Token + bodyWrapper *NodeWrapper + filterChain []*nodeFilterCall +} + +func (node *tagFilterNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + temp := bytes.NewBuffer(make([]byte, 0, 1024)) // 1 KiB size + + err := node.bodyWrapper.Execute(ctx, temp) + if err != nil { + return err + } + + value := AsValue(temp.String()) + + for _, call := range node.filterChain { + var param *Value + if call.paramExpr != nil { + param, err = call.paramExpr.Evaluate(ctx) + if err != nil { + return err + } + } else { + param = AsValue(nil) + } + value, err = ApplyFilter(call.name, value, param) + if err != nil { + return ctx.Error(err.Error(), node.position) + } + } + + writer.WriteString(value.String()) + + return nil +} + +func tagFilterParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + filterNode := &tagFilterNode{ + position: start, + } + + wrapper, _, err := doc.WrapUntilTag("endfilter") + if err != nil { + return nil, err + } + filterNode.bodyWrapper = wrapper + + for arguments.Remaining() > 0 { + filterCall := &nodeFilterCall{} + + nameToken := arguments.MatchType(TokenIdentifier) + if nameToken == nil { + return nil, arguments.Error("Expected a filter name (identifier).", nil) + } + filterCall.name = nameToken.Val + + if arguments.MatchOne(TokenSymbol, ":") != nil { + // Filter parameter + // NOTICE: we can't use ParseExpression() here, because it would parse the next filter "|..." as well in the argument list + expr, err := arguments.parseVariableOrLiteral() + if err != nil { + return nil, err + } + filterCall.paramExpr = expr + } + + filterNode.filterChain = append(filterNode.filterChain, filterCall) + + if arguments.MatchOne(TokenSymbol, "|") == nil { + break + } + } + + if arguments.Remaining() > 0 { + return nil, arguments.Error("Malformed filter-tag arguments.", nil) + } + + return filterNode, nil +} + +func init() { + RegisterTag("filter", tagFilterParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_firstof.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_firstof.go new file mode 100644 index 0000000..5b2888e --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_firstof.go @@ -0,0 +1,49 @@ +package pongo2 + +type tagFirstofNode struct { + position *Token + args []IEvaluator +} + +func (node *tagFirstofNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + for _, arg := range node.args { + val, err := arg.Evaluate(ctx) + if err != nil { + return err + } + + if val.IsTrue() { + if ctx.Autoescape && !arg.FilterApplied("safe") { + val, err = ApplyFilter("escape", val, nil) + if err != nil { + return err + } + } + + writer.WriteString(val.String()) + return nil + } + } + + return nil +} + +func tagFirstofParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + firstofNode := &tagFirstofNode{ + position: start, + } + + for arguments.Remaining() > 0 { + node, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + firstofNode.args = append(firstofNode.args, node) + } + + return firstofNode, nil +} + +func init() { + RegisterTag("firstof", tagFirstofParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_for.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_for.go new file mode 100644 index 0000000..5b0b555 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_for.go @@ -0,0 +1,159 @@ +package pongo2 + +type tagForNode struct { + key string + value string // only for maps: for key, value in map + objectEvaluator IEvaluator + reversed bool + sorted bool + + bodyWrapper *NodeWrapper + emptyWrapper *NodeWrapper +} + +type tagForLoopInformation struct { + Counter int + Counter0 int + Revcounter int + Revcounter0 int + First bool + Last bool + Parentloop *tagForLoopInformation +} + +func (node *tagForNode) Execute(ctx *ExecutionContext, writer TemplateWriter) (forError *Error) { + // Backup forloop (as parentloop in public context), key-name and value-name + forCtx := NewChildExecutionContext(ctx) + parentloop := forCtx.Private["forloop"] + + // Create loop struct + loopInfo := &tagForLoopInformation{ + First: true, + } + + // Is it a loop in a loop? + if parentloop != nil { + loopInfo.Parentloop = parentloop.(*tagForLoopInformation) + } + + // Register loopInfo in public context + forCtx.Private["forloop"] = loopInfo + + obj, err := node.objectEvaluator.Evaluate(forCtx) + if err != nil { + return err + } + + obj.IterateOrder(func(idx, count int, key, value *Value) bool { + // There's something to iterate over (correct type and at least 1 item) + + // Update loop infos and public context + forCtx.Private[node.key] = key + if value != nil { + forCtx.Private[node.value] = value + } + loopInfo.Counter = idx + 1 + loopInfo.Counter0 = idx + if idx == 1 { + loopInfo.First = false + } + if idx+1 == count { + loopInfo.Last = true + } + loopInfo.Revcounter = count - idx // TODO: Not sure about this, have to look it up + loopInfo.Revcounter0 = count - (idx + 1) // TODO: Not sure about this, have to look it up + + // Render elements with updated context + err := node.bodyWrapper.Execute(forCtx, writer) + if err != nil { + forError = err + return false + } + return true + }, func() { + // Nothing to iterate over (maybe wrong type or no items) + if node.emptyWrapper != nil { + err := node.emptyWrapper.Execute(forCtx, writer) + if err != nil { + forError = err + } + } + }, node.reversed, node.sorted) + + return forError +} + +func tagForParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + forNode := &tagForNode{} + + // Arguments parsing + var valueToken *Token + keyToken := arguments.MatchType(TokenIdentifier) + if keyToken == nil { + return nil, arguments.Error("Expected an key identifier as first argument for 'for'-tag", nil) + } + + if arguments.Match(TokenSymbol, ",") != nil { + // Value name is provided + valueToken = arguments.MatchType(TokenIdentifier) + if valueToken == nil { + return nil, arguments.Error("Value name must be an identifier.", nil) + } + } + + if arguments.Match(TokenKeyword, "in") == nil { + return nil, arguments.Error("Expected keyword 'in'.", nil) + } + + objectEvaluator, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + forNode.objectEvaluator = objectEvaluator + forNode.key = keyToken.Val + if valueToken != nil { + forNode.value = valueToken.Val + } + + if arguments.MatchOne(TokenIdentifier, "reversed") != nil { + forNode.reversed = true + } + + if arguments.MatchOne(TokenIdentifier, "sorted") != nil { + forNode.sorted = true + } + + if arguments.Remaining() > 0 { + return nil, arguments.Error("Malformed for-loop arguments.", nil) + } + + // Body wrapping + wrapper, endargs, err := doc.WrapUntilTag("empty", "endfor") + if err != nil { + return nil, err + } + forNode.bodyWrapper = wrapper + + if endargs.Count() > 0 { + return nil, endargs.Error("Arguments not allowed here.", nil) + } + + if wrapper.Endtag == "empty" { + // if there's an else in the if-statement, we need the else-Block as well + wrapper, endargs, err = doc.WrapUntilTag("endfor") + if err != nil { + return nil, err + } + forNode.emptyWrapper = wrapper + + if endargs.Count() > 0 { + return nil, endargs.Error("Arguments not allowed here.", nil) + } + } + + return forNode, nil +} + +func init() { + RegisterTag("for", tagForParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_if.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_if.go new file mode 100644 index 0000000..3eeaf3b --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_if.go @@ -0,0 +1,76 @@ +package pongo2 + +type tagIfNode struct { + conditions []IEvaluator + wrappers []*NodeWrapper +} + +func (node *tagIfNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + for i, condition := range node.conditions { + result, err := condition.Evaluate(ctx) + if err != nil { + return err + } + + if result.IsTrue() { + return node.wrappers[i].Execute(ctx, writer) + } + // Last condition? + if len(node.conditions) == i+1 && len(node.wrappers) > i+1 { + return node.wrappers[i+1].Execute(ctx, writer) + } + } + return nil +} + +func tagIfParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + ifNode := &tagIfNode{} + + // Parse first and main IF condition + condition, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + ifNode.conditions = append(ifNode.conditions, condition) + + if arguments.Remaining() > 0 { + return nil, arguments.Error("If-condition is malformed.", nil) + } + + // Check the rest + for { + wrapper, tagArgs, err := doc.WrapUntilTag("elif", "else", "endif") + if err != nil { + return nil, err + } + ifNode.wrappers = append(ifNode.wrappers, wrapper) + + if wrapper.Endtag == "elif" { + // elif can take a condition + condition, err = tagArgs.ParseExpression() + if err != nil { + return nil, err + } + ifNode.conditions = append(ifNode.conditions, condition) + + if tagArgs.Remaining() > 0 { + return nil, tagArgs.Error("Elif-condition is malformed.", nil) + } + } else { + if tagArgs.Count() > 0 { + // else/endif can't take any conditions + return nil, tagArgs.Error("Arguments not allowed here.", nil) + } + } + + if wrapper.Endtag == "endif" { + break + } + } + + return ifNode, nil +} + +func init() { + RegisterTag("if", tagIfParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_ifchanged.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_ifchanged.go new file mode 100644 index 0000000..45296a0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_ifchanged.go @@ -0,0 +1,116 @@ +package pongo2 + +import ( + "bytes" +) + +type tagIfchangedNode struct { + watchedExpr []IEvaluator + lastValues []*Value + lastContent []byte + thenWrapper *NodeWrapper + elseWrapper *NodeWrapper +} + +func (node *tagIfchangedNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + if len(node.watchedExpr) == 0 { + // Check against own rendered body + + buf := bytes.NewBuffer(make([]byte, 0, 1024)) // 1 KiB + err := node.thenWrapper.Execute(ctx, buf) + if err != nil { + return err + } + + bufBytes := buf.Bytes() + if !bytes.Equal(node.lastContent, bufBytes) { + // Rendered content changed, output it + writer.Write(bufBytes) + node.lastContent = bufBytes + } + } else { + nowValues := make([]*Value, 0, len(node.watchedExpr)) + for _, expr := range node.watchedExpr { + val, err := expr.Evaluate(ctx) + if err != nil { + return err + } + nowValues = append(nowValues, val) + } + + // Compare old to new values now + changed := len(node.lastValues) == 0 + + for idx, oldVal := range node.lastValues { + if !oldVal.EqualValueTo(nowValues[idx]) { + changed = true + break // we can stop here because ONE value changed + } + } + + node.lastValues = nowValues + + if changed { + // Render thenWrapper + err := node.thenWrapper.Execute(ctx, writer) + if err != nil { + return err + } + } else { + // Render elseWrapper + err := node.elseWrapper.Execute(ctx, writer) + if err != nil { + return err + } + } + } + + return nil +} + +func tagIfchangedParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + ifchangedNode := &tagIfchangedNode{} + + for arguments.Remaining() > 0 { + // Parse condition + expr, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + ifchangedNode.watchedExpr = append(ifchangedNode.watchedExpr, expr) + } + + if arguments.Remaining() > 0 { + return nil, arguments.Error("Ifchanged-arguments are malformed.", nil) + } + + // Wrap then/else-blocks + wrapper, endargs, err := doc.WrapUntilTag("else", "endifchanged") + if err != nil { + return nil, err + } + ifchangedNode.thenWrapper = wrapper + + if endargs.Count() > 0 { + return nil, endargs.Error("Arguments not allowed here.", nil) + } + + if wrapper.Endtag == "else" { + // if there's an else in the if-statement, we need the else-Block as well + wrapper, endargs, err = doc.WrapUntilTag("endifchanged") + if err != nil { + return nil, err + } + ifchangedNode.elseWrapper = wrapper + + if endargs.Count() > 0 { + return nil, endargs.Error("Arguments not allowed here.", nil) + } + } + + return ifchangedNode, nil +} + +func init() { + RegisterTag("ifchanged", tagIfchangedParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_ifequal.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_ifequal.go new file mode 100644 index 0000000..103f1c7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_ifequal.go @@ -0,0 +1,78 @@ +package pongo2 + +type tagIfEqualNode struct { + var1, var2 IEvaluator + thenWrapper *NodeWrapper + elseWrapper *NodeWrapper +} + +func (node *tagIfEqualNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + r1, err := node.var1.Evaluate(ctx) + if err != nil { + return err + } + r2, err := node.var2.Evaluate(ctx) + if err != nil { + return err + } + + result := r1.EqualValueTo(r2) + + if result { + return node.thenWrapper.Execute(ctx, writer) + } + if node.elseWrapper != nil { + return node.elseWrapper.Execute(ctx, writer) + } + return nil +} + +func tagIfEqualParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + ifequalNode := &tagIfEqualNode{} + + // Parse two expressions + var1, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + var2, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + ifequalNode.var1 = var1 + ifequalNode.var2 = var2 + + if arguments.Remaining() > 0 { + return nil, arguments.Error("ifequal only takes 2 arguments.", nil) + } + + // Wrap then/else-blocks + wrapper, endargs, err := doc.WrapUntilTag("else", "endifequal") + if err != nil { + return nil, err + } + ifequalNode.thenWrapper = wrapper + + if endargs.Count() > 0 { + return nil, endargs.Error("Arguments not allowed here.", nil) + } + + if wrapper.Endtag == "else" { + // if there's an else in the if-statement, we need the else-Block as well + wrapper, endargs, err = doc.WrapUntilTag("endifequal") + if err != nil { + return nil, err + } + ifequalNode.elseWrapper = wrapper + + if endargs.Count() > 0 { + return nil, endargs.Error("Arguments not allowed here.", nil) + } + } + + return ifequalNode, nil +} + +func init() { + RegisterTag("ifequal", tagIfEqualParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_ifnotequal.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_ifnotequal.go new file mode 100644 index 0000000..0d287d3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_ifnotequal.go @@ -0,0 +1,78 @@ +package pongo2 + +type tagIfNotEqualNode struct { + var1, var2 IEvaluator + thenWrapper *NodeWrapper + elseWrapper *NodeWrapper +} + +func (node *tagIfNotEqualNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + r1, err := node.var1.Evaluate(ctx) + if err != nil { + return err + } + r2, err := node.var2.Evaluate(ctx) + if err != nil { + return err + } + + result := !r1.EqualValueTo(r2) + + if result { + return node.thenWrapper.Execute(ctx, writer) + } + if node.elseWrapper != nil { + return node.elseWrapper.Execute(ctx, writer) + } + return nil +} + +func tagIfNotEqualParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + ifnotequalNode := &tagIfNotEqualNode{} + + // Parse two expressions + var1, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + var2, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + ifnotequalNode.var1 = var1 + ifnotequalNode.var2 = var2 + + if arguments.Remaining() > 0 { + return nil, arguments.Error("ifequal only takes 2 arguments.", nil) + } + + // Wrap then/else-blocks + wrapper, endargs, err := doc.WrapUntilTag("else", "endifnotequal") + if err != nil { + return nil, err + } + ifnotequalNode.thenWrapper = wrapper + + if endargs.Count() > 0 { + return nil, endargs.Error("Arguments not allowed here.", nil) + } + + if wrapper.Endtag == "else" { + // if there's an else in the if-statement, we need the else-Block as well + wrapper, endargs, err = doc.WrapUntilTag("endifnotequal") + if err != nil { + return nil, err + } + ifnotequalNode.elseWrapper = wrapper + + if endargs.Count() > 0 { + return nil, endargs.Error("Arguments not allowed here.", nil) + } + } + + return ifnotequalNode, nil +} + +func init() { + RegisterTag("ifnotequal", tagIfNotEqualParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_import.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_import.go new file mode 100644 index 0000000..7e0d6a0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_import.go @@ -0,0 +1,84 @@ +package pongo2 + +import ( + "fmt" +) + +type tagImportNode struct { + position *Token + filename string + macros map[string]*tagMacroNode // alias/name -> macro instance +} + +func (node *tagImportNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + for name, macro := range node.macros { + func(name string, macro *tagMacroNode) { + ctx.Private[name] = func(args ...*Value) *Value { + return macro.call(ctx, args...) + } + }(name, macro) + } + return nil +} + +func tagImportParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + importNode := &tagImportNode{ + position: start, + macros: make(map[string]*tagMacroNode), + } + + filenameToken := arguments.MatchType(TokenString) + if filenameToken == nil { + return nil, arguments.Error("Import-tag needs a filename as string.", nil) + } + + importNode.filename = doc.template.set.resolveFilename(doc.template, filenameToken.Val) + + if arguments.Remaining() == 0 { + return nil, arguments.Error("You must at least specify one macro to import.", nil) + } + + // Compile the given template + tpl, err := doc.template.set.FromFile(importNode.filename) + if err != nil { + return nil, err.(*Error).updateFromTokenIfNeeded(doc.template, start) + } + + for arguments.Remaining() > 0 { + macroNameToken := arguments.MatchType(TokenIdentifier) + if macroNameToken == nil { + return nil, arguments.Error("Expected macro name (identifier).", nil) + } + + asName := macroNameToken.Val + if arguments.Match(TokenKeyword, "as") != nil { + aliasToken := arguments.MatchType(TokenIdentifier) + if aliasToken == nil { + return nil, arguments.Error("Expected macro alias name (identifier).", nil) + } + asName = aliasToken.Val + } + + macroInstance, has := tpl.exportedMacros[macroNameToken.Val] + if !has { + return nil, arguments.Error(fmt.Sprintf("Macro '%s' not found (or not exported) in '%s'.", macroNameToken.Val, + importNode.filename), macroNameToken) + } + + importNode.macros[asName] = macroInstance + + if arguments.Remaining() == 0 { + break + } + + if arguments.Match(TokenSymbol, ",") == nil { + return nil, arguments.Error("Expected ','.", nil) + } + } + + return importNode, nil +} + +func init() { + RegisterTag("import", tagImportParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_include.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_include.go new file mode 100644 index 0000000..6d619fd --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_include.go @@ -0,0 +1,146 @@ +package pongo2 + +type tagIncludeNode struct { + tpl *Template + filenameEvaluator IEvaluator + lazy bool + only bool + filename string + withPairs map[string]IEvaluator + ifExists bool +} + +func (node *tagIncludeNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + // Building the context for the template + includeCtx := make(Context) + + // Fill the context with all data from the parent + if !node.only { + includeCtx.Update(ctx.Public) + includeCtx.Update(ctx.Private) + } + + // Put all custom with-pairs into the context + for key, value := range node.withPairs { + val, err := value.Evaluate(ctx) + if err != nil { + return err + } + includeCtx[key] = val + } + + // Execute the template + if node.lazy { + // Evaluate the filename + filename, err := node.filenameEvaluator.Evaluate(ctx) + if err != nil { + return err + } + + if filename.String() == "" { + return ctx.Error("Filename for 'include'-tag evaluated to an empty string.", nil) + } + + // Get include-filename + includedFilename := ctx.template.set.resolveFilename(ctx.template, filename.String()) + + includedTpl, err2 := ctx.template.set.FromFile(includedFilename) + if err2 != nil { + // if this is ReadFile error, and "if_exists" flag is enabled + if node.ifExists && err2.(*Error).Sender == "fromfile" { + return nil + } + return err2.(*Error) + } + err2 = includedTpl.ExecuteWriter(includeCtx, writer) + if err2 != nil { + return err2.(*Error) + } + return nil + } + // Template is already parsed with static filename + err := node.tpl.ExecuteWriter(includeCtx, writer) + if err != nil { + return err.(*Error) + } + return nil +} + +type tagIncludeEmptyNode struct{} + +func (node *tagIncludeEmptyNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + return nil +} + +func tagIncludeParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + includeNode := &tagIncludeNode{ + withPairs: make(map[string]IEvaluator), + } + + if filenameToken := arguments.MatchType(TokenString); filenameToken != nil { + // prepared, static template + + // "if_exists" flag + ifExists := arguments.Match(TokenIdentifier, "if_exists") != nil + + // Get include-filename + includedFilename := doc.template.set.resolveFilename(doc.template, filenameToken.Val) + + // Parse the parent + includeNode.filename = includedFilename + includedTpl, err := doc.template.set.FromFile(includedFilename) + if err != nil { + // if this is ReadFile error, and "if_exists" token presents we should create and empty node + if err.(*Error).Sender == "fromfile" && ifExists { + return &tagIncludeEmptyNode{}, nil + } + return nil, err.(*Error).updateFromTokenIfNeeded(doc.template, filenameToken) + } + includeNode.tpl = includedTpl + } else { + // No String, then the user wants to use lazy-evaluation (slower, but possible) + filenameEvaluator, err := arguments.ParseExpression() + if err != nil { + return nil, err.updateFromTokenIfNeeded(doc.template, filenameToken) + } + includeNode.filenameEvaluator = filenameEvaluator + includeNode.lazy = true + includeNode.ifExists = arguments.Match(TokenIdentifier, "if_exists") != nil // "if_exists" flag + } + + // After having parsed the filename we're gonna parse the with+only options + if arguments.Match(TokenIdentifier, "with") != nil { + for arguments.Remaining() > 0 { + // We have at least one key=expr pair (because of starting "with") + keyToken := arguments.MatchType(TokenIdentifier) + if keyToken == nil { + return nil, arguments.Error("Expected an identifier", nil) + } + if arguments.Match(TokenSymbol, "=") == nil { + return nil, arguments.Error("Expected '='.", nil) + } + valueExpr, err := arguments.ParseExpression() + if err != nil { + return nil, err.updateFromTokenIfNeeded(doc.template, keyToken) + } + + includeNode.withPairs[keyToken.Val] = valueExpr + + // Only? + if arguments.Match(TokenIdentifier, "only") != nil { + includeNode.only = true + break // stop parsing arguments because it's the last option + } + } + } + + if arguments.Remaining() > 0 { + return nil, arguments.Error("Malformed 'include'-tag arguments.", nil) + } + + return includeNode, nil +} + +func init() { + RegisterTag("include", tagIncludeParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_lorem.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_lorem.go new file mode 100644 index 0000000..8a152b3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_lorem.go @@ -0,0 +1,131 @@ +package pongo2 + +import ( + "math/rand" + "strings" + "time" +) + +var ( + tagLoremParagraphs = strings.Split(tagLoremText, "\n") + tagLoremWords = strings.Fields(tagLoremText) +) + +type tagLoremNode struct { + position *Token + count int // number of paragraphs + method string // w = words, p = HTML paragraphs, b = plain-text (default is b) + random bool // does not use the default paragraph "Lorem ipsum dolor sit amet, ..." +} + +func (node *tagLoremNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + switch node.method { + case "b": + if node.random { + for i := 0; i < node.count; i++ { + if i > 0 { + writer.WriteString("\n") + } + par := tagLoremParagraphs[rand.Intn(len(tagLoremParagraphs))] + writer.WriteString(par) + } + } else { + for i := 0; i < node.count; i++ { + if i > 0 { + writer.WriteString("\n") + } + par := tagLoremParagraphs[i%len(tagLoremParagraphs)] + writer.WriteString(par) + } + } + case "w": + if node.random { + for i := 0; i < node.count; i++ { + if i > 0 { + writer.WriteString(" ") + } + word := tagLoremWords[rand.Intn(len(tagLoremWords))] + writer.WriteString(word) + } + } else { + for i := 0; i < node.count; i++ { + if i > 0 { + writer.WriteString(" ") + } + word := tagLoremWords[i%len(tagLoremWords)] + writer.WriteString(word) + } + } + case "p": + if node.random { + for i := 0; i < node.count; i++ { + if i > 0 { + writer.WriteString("\n") + } + writer.WriteString("

") + par := tagLoremParagraphs[rand.Intn(len(tagLoremParagraphs))] + writer.WriteString(par) + writer.WriteString("

") + } + } else { + for i := 0; i < node.count; i++ { + if i > 0 { + writer.WriteString("\n") + } + writer.WriteString("

") + par := tagLoremParagraphs[i%len(tagLoremParagraphs)] + writer.WriteString(par) + writer.WriteString("

") + + } + } + default: + panic("unsupported method") + } + + return nil +} + +func tagLoremParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + loremNode := &tagLoremNode{ + position: start, + count: 1, + method: "b", + } + + if countToken := arguments.MatchType(TokenNumber); countToken != nil { + loremNode.count = AsValue(countToken.Val).Integer() + } + + if methodToken := arguments.MatchType(TokenIdentifier); methodToken != nil { + if methodToken.Val != "w" && methodToken.Val != "p" && methodToken.Val != "b" { + return nil, arguments.Error("lorem-method must be either 'w', 'p' or 'b'.", nil) + } + + loremNode.method = methodToken.Val + } + + if arguments.MatchOne(TokenIdentifier, "random") != nil { + loremNode.random = true + } + + if arguments.Remaining() > 0 { + return nil, arguments.Error("Malformed lorem-tag arguments.", nil) + } + + return loremNode, nil +} + +func init() { + rand.Seed(time.Now().Unix()) + + RegisterTag("lorem", tagLoremParser) +} + +const tagLoremText = `Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor incidunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquid ex ea commodi consequat. Quis aute iure reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint obcaecat cupiditat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. +Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi. Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. +Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi. +Nam liber tempor cum soluta nobis eleifend option congue nihil imperdiet doming id quod mazim placerat facer possim assum. Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. +Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis. +At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, At accusam aliquyam diam diam dolore dolores duo eirmod eos erat, et nonumy sed tempor et et invidunt justo labore Stet clita ea et gubergren, kasd magna no rebum. sanctus sea sed takimata ut vero voluptua. est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat. +Consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.` diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_macro.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_macro.go new file mode 100644 index 0000000..18a2c3c --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_macro.go @@ -0,0 +1,149 @@ +package pongo2 + +import ( + "bytes" + "fmt" +) + +type tagMacroNode struct { + position *Token + name string + argsOrder []string + args map[string]IEvaluator + exported bool + + wrapper *NodeWrapper +} + +func (node *tagMacroNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + ctx.Private[node.name] = func(args ...*Value) *Value { + return node.call(ctx, args...) + } + + return nil +} + +func (node *tagMacroNode) call(ctx *ExecutionContext, args ...*Value) *Value { + argsCtx := make(Context) + + for k, v := range node.args { + if v == nil { + // User did not provided a default value + argsCtx[k] = nil + } else { + // Evaluate the default value + valueExpr, err := v.Evaluate(ctx) + if err != nil { + ctx.Logf(err.Error()) + return AsSafeValue(err.Error()) + } + + argsCtx[k] = valueExpr + } + } + + if len(args) > len(node.argsOrder) { + // Too many arguments, we're ignoring them and just logging into debug mode. + err := ctx.Error(fmt.Sprintf("Macro '%s' called with too many arguments (%d instead of %d).", + node.name, len(args), len(node.argsOrder)), nil).updateFromTokenIfNeeded(ctx.template, node.position) + + ctx.Logf(err.Error()) // TODO: This is a workaround, because the error is not returned yet to the Execution()-methods + return AsSafeValue(err.Error()) + } + + // Make a context for the macro execution + macroCtx := NewChildExecutionContext(ctx) + + // Register all arguments in the private context + macroCtx.Private.Update(argsCtx) + + for idx, argValue := range args { + macroCtx.Private[node.argsOrder[idx]] = argValue.Interface() + } + + var b bytes.Buffer + err := node.wrapper.Execute(macroCtx, &b) + if err != nil { + return AsSafeValue(err.updateFromTokenIfNeeded(ctx.template, node.position).Error()) + } + + return AsSafeValue(b.String()) +} + +func tagMacroParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + macroNode := &tagMacroNode{ + position: start, + args: make(map[string]IEvaluator), + } + + nameToken := arguments.MatchType(TokenIdentifier) + if nameToken == nil { + return nil, arguments.Error("Macro-tag needs at least an identifier as name.", nil) + } + macroNode.name = nameToken.Val + + if arguments.MatchOne(TokenSymbol, "(") == nil { + return nil, arguments.Error("Expected '('.", nil) + } + + for arguments.Match(TokenSymbol, ")") == nil { + argNameToken := arguments.MatchType(TokenIdentifier) + if argNameToken == nil { + return nil, arguments.Error("Expected argument name as identifier.", nil) + } + macroNode.argsOrder = append(macroNode.argsOrder, argNameToken.Val) + + if arguments.Match(TokenSymbol, "=") != nil { + // Default expression follows + argDefaultExpr, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + macroNode.args[argNameToken.Val] = argDefaultExpr + } else { + // No default expression + macroNode.args[argNameToken.Val] = nil + } + + if arguments.Match(TokenSymbol, ")") != nil { + break + } + if arguments.Match(TokenSymbol, ",") == nil { + return nil, arguments.Error("Expected ',' or ')'.", nil) + } + } + + if arguments.Match(TokenKeyword, "export") != nil { + macroNode.exported = true + } + + if arguments.Remaining() > 0 { + return nil, arguments.Error("Malformed macro-tag.", nil) + } + + // Body wrapping + wrapper, endargs, err := doc.WrapUntilTag("endmacro") + if err != nil { + return nil, err + } + macroNode.wrapper = wrapper + + if endargs.Count() > 0 { + return nil, endargs.Error("Arguments not allowed here.", nil) + } + + if macroNode.exported { + // Now register the macro if it wants to be exported + _, has := doc.template.exportedMacros[macroNode.name] + if has { + return nil, doc.Error(fmt.Sprintf("Another macro with name '%s' already exported.", macroNode.name), start) + } + doc.template.exportedMacros[macroNode.name] = macroNode + } + + return macroNode, nil +} + +func init() { + RegisterTag("macro", tagMacroParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_now.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_now.go new file mode 100644 index 0000000..d9fa4a3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_now.go @@ -0,0 +1,50 @@ +package pongo2 + +import ( + "time" +) + +type tagNowNode struct { + position *Token + format string + fake bool +} + +func (node *tagNowNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + var t time.Time + if node.fake { + t = time.Date(2014, time.February, 05, 18, 31, 45, 00, time.UTC) + } else { + t = time.Now() + } + + writer.WriteString(t.Format(node.format)) + + return nil +} + +func tagNowParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + nowNode := &tagNowNode{ + position: start, + } + + formatToken := arguments.MatchType(TokenString) + if formatToken == nil { + return nil, arguments.Error("Expected a format string.", nil) + } + nowNode.format = formatToken.Val + + if arguments.MatchOne(TokenIdentifier, "fake") != nil { + nowNode.fake = true + } + + if arguments.Remaining() > 0 { + return nil, arguments.Error("Malformed now-tag arguments.", nil) + } + + return nowNode, nil +} + +func init() { + RegisterTag("now", tagNowParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_set.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_set.go new file mode 100644 index 0000000..be121c1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_set.go @@ -0,0 +1,50 @@ +package pongo2 + +type tagSetNode struct { + name string + expression IEvaluator +} + +func (node *tagSetNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + // Evaluate expression + value, err := node.expression.Evaluate(ctx) + if err != nil { + return err + } + + ctx.Private[node.name] = value + return nil +} + +func tagSetParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + node := &tagSetNode{} + + // Parse variable name + typeToken := arguments.MatchType(TokenIdentifier) + if typeToken == nil { + return nil, arguments.Error("Expected an identifier.", nil) + } + node.name = typeToken.Val + + if arguments.Match(TokenSymbol, "=") == nil { + return nil, arguments.Error("Expected '='.", nil) + } + + // Variable expression + keyExpression, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + node.expression = keyExpression + + // Remaining arguments + if arguments.Remaining() > 0 { + return nil, arguments.Error("Malformed 'set'-tag arguments.", nil) + } + + return node, nil +} + +func init() { + RegisterTag("set", tagSetParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_spaceless.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_spaceless.go new file mode 100644 index 0000000..4fa851b --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_spaceless.go @@ -0,0 +1,54 @@ +package pongo2 + +import ( + "bytes" + "regexp" +) + +type tagSpacelessNode struct { + wrapper *NodeWrapper +} + +var tagSpacelessRegexp = regexp.MustCompile(`(?U:(<.*>))([\t\n\v\f\r ]+)(?U:(<.*>))`) + +func (node *tagSpacelessNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + b := bytes.NewBuffer(make([]byte, 0, 1024)) // 1 KiB + + err := node.wrapper.Execute(ctx, b) + if err != nil { + return err + } + + s := b.String() + // Repeat this recursively + changed := true + for changed { + s2 := tagSpacelessRegexp.ReplaceAllString(s, "$1$3") + changed = s != s2 + s = s2 + } + + writer.WriteString(s) + + return nil +} + +func tagSpacelessParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + spacelessNode := &tagSpacelessNode{} + + wrapper, _, err := doc.WrapUntilTag("endspaceless") + if err != nil { + return nil, err + } + spacelessNode.wrapper = wrapper + + if arguments.Remaining() > 0 { + return nil, arguments.Error("Malformed spaceless-tag arguments.", nil) + } + + return spacelessNode, nil +} + +func init() { + RegisterTag("spaceless", tagSpacelessParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_ssi.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_ssi.go new file mode 100644 index 0000000..09c2325 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_ssi.go @@ -0,0 +1,68 @@ +package pongo2 + +import ( + "io/ioutil" +) + +type tagSSINode struct { + filename string + content string + template *Template +} + +func (node *tagSSINode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + if node.template != nil { + // Execute the template within the current context + includeCtx := make(Context) + includeCtx.Update(ctx.Public) + includeCtx.Update(ctx.Private) + + err := node.template.execute(includeCtx, writer) + if err != nil { + return err.(*Error) + } + } else { + // Just print out the content + writer.WriteString(node.content) + } + return nil +} + +func tagSSIParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + SSINode := &tagSSINode{} + + if fileToken := arguments.MatchType(TokenString); fileToken != nil { + SSINode.filename = fileToken.Val + + if arguments.Match(TokenIdentifier, "parsed") != nil { + // parsed + temporaryTpl, err := doc.template.set.FromFile(doc.template.set.resolveFilename(doc.template, fileToken.Val)) + if err != nil { + return nil, err.(*Error).updateFromTokenIfNeeded(doc.template, fileToken) + } + SSINode.template = temporaryTpl + } else { + // plaintext + buf, err := ioutil.ReadFile(doc.template.set.resolveFilename(doc.template, fileToken.Val)) + if err != nil { + return nil, (&Error{ + Sender: "tag:ssi", + ErrorMsg: err.Error(), + }).updateFromTokenIfNeeded(doc.template, fileToken) + } + SSINode.content = string(buf) + } + } else { + return nil, arguments.Error("First argument must be a string.", nil) + } + + if arguments.Remaining() > 0 { + return nil, arguments.Error("Malformed SSI-tag argument.", nil) + } + + return SSINode, nil +} + +func init() { + RegisterTag("ssi", tagSSIParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_templatetag.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_templatetag.go new file mode 100644 index 0000000..164b4dc --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_templatetag.go @@ -0,0 +1,45 @@ +package pongo2 + +type tagTemplateTagNode struct { + content string +} + +var templateTagMapping = map[string]string{ + "openblock": "{%", + "closeblock": "%}", + "openvariable": "{{", + "closevariable": "}}", + "openbrace": "{", + "closebrace": "}", + "opencomment": "{#", + "closecomment": "#}", +} + +func (node *tagTemplateTagNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + writer.WriteString(node.content) + return nil +} + +func tagTemplateTagParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + ttNode := &tagTemplateTagNode{} + + if argToken := arguments.MatchType(TokenIdentifier); argToken != nil { + output, found := templateTagMapping[argToken.Val] + if !found { + return nil, arguments.Error("Argument not found", argToken) + } + ttNode.content = output + } else { + return nil, arguments.Error("Identifier expected.", nil) + } + + if arguments.Remaining() > 0 { + return nil, arguments.Error("Malformed templatetag-tag argument.", nil) + } + + return ttNode, nil +} + +func init() { + RegisterTag("templatetag", tagTemplateTagParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_widthratio.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_widthratio.go new file mode 100644 index 0000000..70c9c3e --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_widthratio.go @@ -0,0 +1,83 @@ +package pongo2 + +import ( + "fmt" + "math" +) + +type tagWidthratioNode struct { + position *Token + current, max IEvaluator + width IEvaluator + ctxName string +} + +func (node *tagWidthratioNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + current, err := node.current.Evaluate(ctx) + if err != nil { + return err + } + + max, err := node.max.Evaluate(ctx) + if err != nil { + return err + } + + width, err := node.width.Evaluate(ctx) + if err != nil { + return err + } + + value := int(math.Ceil(current.Float()/max.Float()*width.Float() + 0.5)) + + if node.ctxName == "" { + writer.WriteString(fmt.Sprintf("%d", value)) + } else { + ctx.Private[node.ctxName] = value + } + + return nil +} + +func tagWidthratioParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + widthratioNode := &tagWidthratioNode{ + position: start, + } + + current, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + widthratioNode.current = current + + max, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + widthratioNode.max = max + + width, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + widthratioNode.width = width + + if arguments.MatchOne(TokenKeyword, "as") != nil { + // Name follows + nameToken := arguments.MatchType(TokenIdentifier) + if nameToken == nil { + return nil, arguments.Error("Expected name (identifier).", nil) + } + widthratioNode.ctxName = nameToken.Val + } + + if arguments.Remaining() > 0 { + return nil, arguments.Error("Malformed widthratio-tag arguments.", nil) + } + + return widthratioNode, nil +} + +func init() { + RegisterTag("widthratio", tagWidthratioParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/tags_with.go b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_with.go new file mode 100644 index 0000000..32b3c1c --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/tags_with.go @@ -0,0 +1,88 @@ +package pongo2 + +type tagWithNode struct { + withPairs map[string]IEvaluator + wrapper *NodeWrapper +} + +func (node *tagWithNode) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + //new context for block + withctx := NewChildExecutionContext(ctx) + + // Put all custom with-pairs into the context + for key, value := range node.withPairs { + val, err := value.Evaluate(ctx) + if err != nil { + return err + } + withctx.Private[key] = val + } + + return node.wrapper.Execute(withctx, writer) +} + +func tagWithParser(doc *Parser, start *Token, arguments *Parser) (INodeTag, *Error) { + withNode := &tagWithNode{ + withPairs: make(map[string]IEvaluator), + } + + if arguments.Count() == 0 { + return nil, arguments.Error("Tag 'with' requires at least one argument.", nil) + } + + wrapper, endargs, err := doc.WrapUntilTag("endwith") + if err != nil { + return nil, err + } + withNode.wrapper = wrapper + + if endargs.Count() > 0 { + return nil, endargs.Error("Arguments not allowed here.", nil) + } + + // Scan through all arguments to see which style the user uses (old or new style). + // If we find any "as" keyword we will enforce old style; otherwise we will use new style. + oldStyle := false // by default we're using the new_style + for i := 0; i < arguments.Count(); i++ { + if arguments.PeekN(i, TokenKeyword, "as") != nil { + oldStyle = true + break + } + } + + for arguments.Remaining() > 0 { + if oldStyle { + valueExpr, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + if arguments.Match(TokenKeyword, "as") == nil { + return nil, arguments.Error("Expected 'as' keyword.", nil) + } + keyToken := arguments.MatchType(TokenIdentifier) + if keyToken == nil { + return nil, arguments.Error("Expected an identifier", nil) + } + withNode.withPairs[keyToken.Val] = valueExpr + } else { + keyToken := arguments.MatchType(TokenIdentifier) + if keyToken == nil { + return nil, arguments.Error("Expected an identifier", nil) + } + if arguments.Match(TokenSymbol, "=") == nil { + return nil, arguments.Error("Expected '='.", nil) + } + valueExpr, err := arguments.ParseExpression() + if err != nil { + return nil, err + } + withNode.withPairs[keyToken.Val] = valueExpr + } + } + + return withNode, nil +} + +func init() { + RegisterTag("with", tagWithParser) +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/template.go b/Godeps/_workspace/src/github.com/flosch/pongo2/template.go new file mode 100644 index 0000000..74bd30b --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/template.go @@ -0,0 +1,193 @@ +package pongo2 + +import ( + "bytes" + "fmt" + "io" +) + +type TemplateWriter interface { + io.Writer + WriteString(string) (int, error) +} + +type templateWriter struct { + w io.Writer +} + +func (tw *templateWriter) WriteString(s string) (int, error) { + return tw.w.Write([]byte(s)) +} + +func (tw *templateWriter) Write(b []byte) (int, error) { + return tw.w.Write(b) +} + +type Template struct { + set *TemplateSet + + // Input + isTplString bool + name string + tpl string + size int + + // Calculation + tokens []*Token + parser *Parser + + // first come, first serve (it's important to not override existing entries in here) + level int + parent *Template + child *Template + blocks map[string]*NodeWrapper + exportedMacros map[string]*tagMacroNode + + // Output + root *nodeDocument +} + +func newTemplateString(set *TemplateSet, tpl []byte) (*Template, error) { + return newTemplate(set, "", true, tpl) +} + +func newTemplate(set *TemplateSet, name string, isTplString bool, tpl []byte) (*Template, error) { + strTpl := string(tpl) + + // Create the template + t := &Template{ + set: set, + isTplString: isTplString, + name: name, + tpl: strTpl, + size: len(strTpl), + blocks: make(map[string]*NodeWrapper), + exportedMacros: make(map[string]*tagMacroNode), + } + + // Tokenize it + tokens, err := lex(name, strTpl) + if err != nil { + return nil, err + } + t.tokens = tokens + + // For debugging purposes, show all tokens: + /*for i, t := range tokens { + fmt.Printf("%3d. %s\n", i, t) + }*/ + + // Parse it + err = t.parse() + if err != nil { + return nil, err + } + + return t, nil +} + +func (tpl *Template) execute(context Context, writer TemplateWriter) error { + // Determine the parent to be executed (for template inheritance) + parent := tpl + for parent.parent != nil { + parent = parent.parent + } + + // Create context if none is given + newContext := make(Context) + newContext.Update(tpl.set.Globals) + + if context != nil { + newContext.Update(context) + + if len(newContext) > 0 { + // Check for context name syntax + err := newContext.checkForValidIdentifiers() + if err != nil { + return err + } + + // Check for clashes with macro names + for k := range newContext { + _, has := tpl.exportedMacros[k] + if has { + return &Error{ + Filename: tpl.name, + Sender: "execution", + ErrorMsg: fmt.Sprintf("Context key name '%s' clashes with macro '%s'.", k, k), + } + } + } + } + } + + // Create operational context + ctx := newExecutionContext(parent, newContext) + + // Run the selected document + if err := parent.root.Execute(ctx, writer); err != nil { + return err + } + + return nil +} + +func (tpl *Template) newTemplateWriterAndExecute(context Context, writer io.Writer) error { + return tpl.execute(context, &templateWriter{w: writer}) +} + +func (tpl *Template) newBufferAndExecute(context Context) (*bytes.Buffer, error) { + // Create output buffer + // We assume that the rendered template will be 30% larger + buffer := bytes.NewBuffer(make([]byte, 0, int(float64(tpl.size)*1.3))) + if err := tpl.execute(context, buffer); err != nil { + return nil, err + } + return buffer, nil +} + +// Executes the template with the given context and writes to writer (io.Writer) +// on success. Context can be nil. Nothing is written on error; instead the error +// is being returned. +func (tpl *Template) ExecuteWriter(context Context, writer io.Writer) error { + buf, err := tpl.newBufferAndExecute(context) + if err != nil { + return err + } + _, err = buf.WriteTo(writer) + if err != nil { + return err + } + return nil +} + +// Same as ExecuteWriter. The only difference between both functions is that +// this function might already have written parts of the generated template in the +// case of an execution error because there's no intermediate buffer involved for +// performance reasons. This is handy if you need high performance template +// generation or if you want to manage your own pool of buffers. +func (tpl *Template) ExecuteWriterUnbuffered(context Context, writer io.Writer) error { + return tpl.newTemplateWriterAndExecute(context, writer) +} + +// Executes the template and returns the rendered template as a []byte +func (tpl *Template) ExecuteBytes(context Context) ([]byte, error) { + // Execute template + buffer, err := tpl.newBufferAndExecute(context) + if err != nil { + return nil, err + } + return buffer.Bytes(), nil +} + +// Executes the template and returns the rendered template as a string +func (tpl *Template) Execute(context Context) (string, error) { + // Execute template + buffer, err := tpl.newBufferAndExecute(context) + if err != nil { + return "", err + } + + return buffer.String(), nil + +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/template_loader.go b/Godeps/_workspace/src/github.com/flosch/pongo2/template_loader.go new file mode 100644 index 0000000..abd2340 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/template_loader.go @@ -0,0 +1,156 @@ +package pongo2 + +import ( + "bytes" + "fmt" + "io" + "io/ioutil" + "log" + "os" + "path/filepath" +) + +// LocalFilesystemLoader represents a local filesystem loader with basic +// BaseDirectory capabilities. The access to the local filesystem is unrestricted. +type LocalFilesystemLoader struct { + baseDir string +} + +// MustNewLocalFileSystemLoader creates a new LocalFilesystemLoader instance +// and panics if there's any error during instantiation. The parameters +// are the same like NewLocalFileSystemLoader. +func MustNewLocalFileSystemLoader(baseDir string) *LocalFilesystemLoader { + fs, err := NewLocalFileSystemLoader(baseDir) + if err != nil { + log.Panic(err) + } + return fs +} + +// NewLocalFileSystemLoader creates a new LocalFilesystemLoader and allows +// templatesto be loaded from disk (unrestricted). If any base directory +// is given (or being set using SetBaseDir), this base directory is being used +// for path calculation in template inclusions/imports. Otherwise the path +// is calculated based relatively to the including template's path. +func NewLocalFileSystemLoader(baseDir string) (*LocalFilesystemLoader, error) { + fs := &LocalFilesystemLoader{} + if baseDir != "" { + if err := fs.SetBaseDir(baseDir); err != nil { + return nil, err + } + } + return fs, nil +} + +// SetBaseDir sets the template's base directory. This directory will +// be used for any relative path in filters, tags and From*-functions to determine +// your template. See the comment for NewLocalFileSystemLoader as well. +func (fs *LocalFilesystemLoader) SetBaseDir(path string) error { + // Make the path absolute + if !filepath.IsAbs(path) { + abs, err := filepath.Abs(path) + if err != nil { + return err + } + path = abs + } + + // Check for existence + fi, err := os.Stat(path) + if err != nil { + return err + } + if !fi.IsDir() { + return fmt.Errorf("The given path '%s' is not a directory.", path) + } + + fs.baseDir = path + return nil +} + +// Get reads the path's content from your local filesystem. +func (fs *LocalFilesystemLoader) Get(path string) (io.Reader, error) { + buf, err := ioutil.ReadFile(path) + if err != nil { + return nil, err + } + return bytes.NewReader(buf), nil +} + +// Abs resolves a filename relative to the base directory. Absolute paths are allowed. +// When there's no base dir set, the absolute path to the filename +// will be calculated based on either the provided base directory (which +// might be a path of a template which includes another template) or +// the current working directory. +func (fs *LocalFilesystemLoader) Abs(base, name string) string { + if filepath.IsAbs(name) { + return name + } + + // Our own base dir has always priority; if there's none + // we use the path provided in base. + var err error + if fs.baseDir == "" { + if base == "" { + base, err = os.Getwd() + if err != nil { + panic(err) + } + return filepath.Join(base, name) + } + + return filepath.Join(filepath.Dir(base), name) + } + + return filepath.Join(fs.baseDir, name) +} + +// SandboxedFilesystemLoader is still WIP. +type SandboxedFilesystemLoader struct { + *LocalFilesystemLoader +} + +// NewSandboxedFilesystemLoader creates a new sandboxed local file system instance. +func NewSandboxedFilesystemLoader(baseDir string) (*SandboxedFilesystemLoader, error) { + fs, err := NewLocalFileSystemLoader(baseDir) + if err != nil { + return nil, err + } + return &SandboxedFilesystemLoader{ + LocalFilesystemLoader: fs, + }, nil +} + +// Move sandbox to a virtual fs + +/* +if len(set.SandboxDirectories) > 0 { + defer func() { + // Remove any ".." or other crap + resolvedPath = filepath.Clean(resolvedPath) + + // Make the path absolute + absPath, err := filepath.Abs(resolvedPath) + if err != nil { + panic(err) + } + resolvedPath = absPath + + // Check against the sandbox directories (once one pattern matches, we're done and can allow it) + for _, pattern := range set.SandboxDirectories { + matched, err := filepath.Match(pattern, resolvedPath) + if err != nil { + panic("Wrong sandbox directory match pattern (see http://golang.org/pkg/path/filepath/#Match).") + } + if matched { + // OK! + return + } + } + + // No pattern matched, we have to log+deny the request + set.logf("Access attempt outside of the sandbox directories (blocked): '%s'", resolvedPath) + resolvedPath = "" + }() +} +*/ diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/template_sets.go b/Godeps/_workspace/src/github.com/flosch/pongo2/template_sets.go new file mode 100644 index 0000000..bcd8a63 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/template_sets.go @@ -0,0 +1,239 @@ +package pongo2 + +import ( + "errors" + "fmt" + "io" + "io/ioutil" + "log" + "os" + "sync" +) + +// TemplateLoader allows to implement a virtual file system. +type TemplateLoader interface { + // Abs calculates the path to a given template. Whenever a path must be resolved + // due to an import from another template, the base equals the parent template's path. + Abs(base, name string) string + + // Get returns an io.Reader where the template's content can be read from. + Get(path string) (io.Reader, error) +} + +// TemplateSet allows you to create your own group of templates with their own +// global context (which is shared among all members of the set) and their own +// configuration. +// It's useful for a separation of different kind of templates +// (e. g. web templates vs. mail templates). +type TemplateSet struct { + name string + loader TemplateLoader + + // Globals will be provided to all templates created within this template set + Globals Context + + // If debug is true (default false), ExecutionContext.Logf() will work and output + // to STDOUT. Furthermore, FromCache() won't cache the templates. + // Make sure to synchronize the access to it in case you're changing this + // variable during program execution (and template compilation/execution). + Debug bool + + // Sandbox features + // - Disallow access to specific tags and/or filters (using BanTag() and BanFilter()) + // + // For efficiency reasons you can ban tags/filters only *before* you have + // added your first template to the set (restrictions are statically checked). + // After you added one, it's not possible anymore (for your personal security). + firstTemplateCreated bool + bannedTags map[string]bool + bannedFilters map[string]bool + + // Template cache (for FromCache()) + templateCache map[string]*Template + templateCacheMutex sync.Mutex +} + +// NewSet can be used to create sets with different kind of templates +// (e. g. web from mail templates), with different globals or +// other configurations. +func NewSet(name string, loader TemplateLoader) *TemplateSet { + return &TemplateSet{ + name: name, + loader: loader, + Globals: make(Context), + bannedTags: make(map[string]bool), + bannedFilters: make(map[string]bool), + templateCache: make(map[string]*Template), + } +} + +func (set *TemplateSet) resolveFilename(tpl *Template, path string) string { + name := "" + if tpl != nil && tpl.isTplString { + return path + } + if tpl != nil { + name = tpl.name + } + return set.loader.Abs(name, path) +} + +// BanTag bans a specific tag for this template set. See more in the documentation for TemplateSet. +func (set *TemplateSet) BanTag(name string) error { + _, has := tags[name] + if !has { + return fmt.Errorf("Tag '%s' not found.", name) + } + if set.firstTemplateCreated { + return errors.New("You cannot ban any tags after you've added your first template to your template set.") + } + _, has = set.bannedTags[name] + if has { + return fmt.Errorf("Tag '%s' is already banned.", name) + } + set.bannedTags[name] = true + + return nil +} + +// BanFilter bans a specific filter for this template set. See more in the documentation for TemplateSet. +func (set *TemplateSet) BanFilter(name string) error { + _, has := filters[name] + if !has { + return fmt.Errorf("Filter '%s' not found.", name) + } + if set.firstTemplateCreated { + return errors.New("You cannot ban any filters after you've added your first template to your template set.") + } + _, has = set.bannedFilters[name] + if has { + return fmt.Errorf("Filter '%s' is already banned.", name) + } + set.bannedFilters[name] = true + + return nil +} + +// FromCache is a convenient method to cache templates. It is thread-safe +// and will only compile the template associated with a filename once. +// If TemplateSet.Debug is true (for example during development phase), +// FromCache() will not cache the template and instead recompile it on any +// call (to make changes to a template live instantaneously). +func (set *TemplateSet) FromCache(filename string) (*Template, error) { + if set.Debug { + // Recompile on any request + return set.FromFile(filename) + } + // Cache the template + cleanedFilename := set.resolveFilename(nil, filename) + + set.templateCacheMutex.Lock() + defer set.templateCacheMutex.Unlock() + + tpl, has := set.templateCache[cleanedFilename] + + // Cache miss + if !has { + tpl, err := set.FromFile(cleanedFilename) + if err != nil { + return nil, err + } + set.templateCache[cleanedFilename] = tpl + return tpl, nil + } + + // Cache hit + return tpl, nil +} + +// FromString loads a template from string and returns a Template instance. +func (set *TemplateSet) FromString(tpl string) (*Template, error) { + set.firstTemplateCreated = true + + return newTemplateString(set, []byte(tpl)) +} + +// FromFile loads a template from a filename and returns a Template instance. +func (set *TemplateSet) FromFile(filename string) (*Template, error) { + set.firstTemplateCreated = true + + fd, err := set.loader.Get(set.resolveFilename(nil, filename)) + if err != nil { + return nil, &Error{ + Filename: filename, + Sender: "fromfile", + ErrorMsg: err.Error(), + } + } + buf, err := ioutil.ReadAll(fd) + if err != nil { + return nil, &Error{ + Filename: filename, + Sender: "fromfile", + ErrorMsg: err.Error(), + } + } + + return newTemplate(set, filename, false, buf) +} + +// RenderTemplateString is a shortcut and renders a template string directly. +// Panics when providing a malformed template or an error occurs during execution. +func (set *TemplateSet) RenderTemplateString(s string, ctx Context) string { + set.firstTemplateCreated = true + + tpl := Must(set.FromString(s)) + result, err := tpl.Execute(ctx) + if err != nil { + panic(err) + } + return result +} + +// RenderTemplateFile is a shortcut and renders a template file directly. +// Panics when providing a malformed template or an error occurs during execution. +func (set *TemplateSet) RenderTemplateFile(fn string, ctx Context) string { + set.firstTemplateCreated = true + + tpl := Must(set.FromFile(fn)) + result, err := tpl.Execute(ctx) + if err != nil { + panic(err) + } + return result +} + +func (set *TemplateSet) logf(format string, args ...interface{}) { + if set.Debug { + logger.Printf(fmt.Sprintf("[template set: %s] %s", set.name, format), args...) + } +} + +// Logging function (internally used) +func logf(format string, items ...interface{}) { + if debug { + logger.Printf(format, items...) + } +} + +var ( + debug bool // internal debugging + logger = log.New(os.Stdout, "[pongo2] ", log.LstdFlags|log.Lshortfile) + + // DefaultLoader allows the default un-sandboxed access to the local file + // system and is being used by the DefaultSet. + DefaultLoader = MustNewLocalFileSystemLoader("") + + // DefaultSet is a set created for you for convinience reasons. + DefaultSet = NewSet("default", DefaultLoader) + + // Methods on the default set + FromString = DefaultSet.FromString + FromFile = DefaultSet.FromFile + FromCache = DefaultSet.FromCache + RenderTemplateString = DefaultSet.RenderTemplateString + RenderTemplateFile = DefaultSet.RenderTemplateFile + + // Globals for the default set + Globals = DefaultSet.Globals +) diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/value.go b/Godeps/_workspace/src/github.com/flosch/pongo2/value.go new file mode 100644 index 0000000..b1d4f7b --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/value.go @@ -0,0 +1,517 @@ +package pongo2 + +import ( + "fmt" + "reflect" + "sort" + "strconv" + "strings" +) + +type Value struct { + val reflect.Value + safe bool // used to indicate whether a Value needs explicit escaping in the template +} + +// AsValue converts any given value to a pongo2.Value +// Usually being used within own functions passed to a template +// through a Context or within filter functions. +// +// Example: +// AsValue("my string") +func AsValue(i interface{}) *Value { + return &Value{ + val: reflect.ValueOf(i), + } +} + +// AsSafeValue works like AsValue, but does not apply the 'escape' filter. +func AsSafeValue(i interface{}) *Value { + return &Value{ + val: reflect.ValueOf(i), + safe: true, + } +} + +func (v *Value) getResolvedValue() reflect.Value { + if v.val.IsValid() && v.val.Kind() == reflect.Ptr { + return v.val.Elem() + } + return v.val +} + +// Checks whether the underlying value is a string +func (v *Value) IsString() bool { + return v.getResolvedValue().Kind() == reflect.String +} + +// Checks whether the underlying value is a bool +func (v *Value) IsBool() bool { + return v.getResolvedValue().Kind() == reflect.Bool +} + +// Checks whether the underlying value is a float +func (v *Value) IsFloat() bool { + return v.getResolvedValue().Kind() == reflect.Float32 || + v.getResolvedValue().Kind() == reflect.Float64 +} + +// Checks whether the underlying value is an integer +func (v *Value) IsInteger() bool { + return v.getResolvedValue().Kind() == reflect.Int || + v.getResolvedValue().Kind() == reflect.Int8 || + v.getResolvedValue().Kind() == reflect.Int16 || + v.getResolvedValue().Kind() == reflect.Int32 || + v.getResolvedValue().Kind() == reflect.Int64 || + v.getResolvedValue().Kind() == reflect.Uint || + v.getResolvedValue().Kind() == reflect.Uint8 || + v.getResolvedValue().Kind() == reflect.Uint16 || + v.getResolvedValue().Kind() == reflect.Uint32 || + v.getResolvedValue().Kind() == reflect.Uint64 +} + +// Checks whether the underlying value is either an integer +// or a float. +func (v *Value) IsNumber() bool { + return v.IsInteger() || v.IsFloat() +} + +// Checks whether the underlying value is NIL +func (v *Value) IsNil() bool { + //fmt.Printf("%+v\n", v.getResolvedValue().Type().String()) + return !v.getResolvedValue().IsValid() +} + +// Returns a string for the underlying value. If this value is not +// of type string, pongo2 tries to convert it. Currently the following +// types for underlying values are supported: +// +// 1. string +// 2. int/uint (any size) +// 3. float (any precision) +// 4. bool +// 5. time.Time +// 6. String() will be called on the underlying value if provided +// +// NIL values will lead to an empty string. Unsupported types are leading +// to their respective type name. +func (v *Value) String() string { + if v.IsNil() { + return "" + } + + switch v.getResolvedValue().Kind() { + case reflect.String: + return v.getResolvedValue().String() + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return strconv.FormatInt(v.getResolvedValue().Int(), 10) + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + return strconv.FormatUint(v.getResolvedValue().Uint(), 10) + case reflect.Float32, reflect.Float64: + return fmt.Sprintf("%f", v.getResolvedValue().Float()) + case reflect.Bool: + if v.Bool() { + return "True" + } + return "False" + case reflect.Struct: + if t, ok := v.Interface().(fmt.Stringer); ok { + return t.String() + } + } + + logf("Value.String() not implemented for type: %s\n", v.getResolvedValue().Kind().String()) + return v.getResolvedValue().String() +} + +// Returns the underlying value as an integer (converts the underlying +// value, if necessary). If it's not possible to convert the underlying value, +// it will return 0. +func (v *Value) Integer() int { + switch v.getResolvedValue().Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return int(v.getResolvedValue().Int()) + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + return int(v.getResolvedValue().Uint()) + case reflect.Float32, reflect.Float64: + return int(v.getResolvedValue().Float()) + case reflect.String: + // Try to convert from string to int (base 10) + f, err := strconv.ParseFloat(v.getResolvedValue().String(), 64) + if err != nil { + return 0 + } + return int(f) + default: + logf("Value.Integer() not available for type: %s\n", v.getResolvedValue().Kind().String()) + return 0 + } +} + +// Returns the underlying value as a float (converts the underlying +// value, if necessary). If it's not possible to convert the underlying value, +// it will return 0.0. +func (v *Value) Float() float64 { + switch v.getResolvedValue().Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return float64(v.getResolvedValue().Int()) + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + return float64(v.getResolvedValue().Uint()) + case reflect.Float32, reflect.Float64: + return v.getResolvedValue().Float() + case reflect.String: + // Try to convert from string to float64 (base 10) + f, err := strconv.ParseFloat(v.getResolvedValue().String(), 64) + if err != nil { + return 0.0 + } + return f + default: + logf("Value.Float() not available for type: %s\n", v.getResolvedValue().Kind().String()) + return 0.0 + } +} + +// Returns the underlying value as bool. If the value is not bool, false +// will always be returned. If you're looking for true/false-evaluation of the +// underlying value, have a look on the IsTrue()-function. +func (v *Value) Bool() bool { + switch v.getResolvedValue().Kind() { + case reflect.Bool: + return v.getResolvedValue().Bool() + default: + logf("Value.Bool() not available for type: %s\n", v.getResolvedValue().Kind().String()) + return false + } +} + +// Tries to evaluate the underlying value the Pythonic-way: +// +// Returns TRUE in one the following cases: +// +// * int != 0 +// * uint != 0 +// * float != 0.0 +// * len(array/chan/map/slice/string) > 0 +// * bool == true +// * underlying value is a struct +// +// Otherwise returns always FALSE. +func (v *Value) IsTrue() bool { + switch v.getResolvedValue().Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return v.getResolvedValue().Int() != 0 + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + return v.getResolvedValue().Uint() != 0 + case reflect.Float32, reflect.Float64: + return v.getResolvedValue().Float() != 0 + case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice, reflect.String: + return v.getResolvedValue().Len() > 0 + case reflect.Bool: + return v.getResolvedValue().Bool() + case reflect.Struct: + return true // struct instance is always true + default: + logf("Value.IsTrue() not available for type: %s\n", v.getResolvedValue().Kind().String()) + return false + } +} + +// Tries to negate the underlying value. It's mainly used for +// the NOT-operator and in conjunction with a call to +// return_value.IsTrue() afterwards. +// +// Example: +// AsValue(1).Negate().IsTrue() == false +func (v *Value) Negate() *Value { + switch v.getResolvedValue().Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, + reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + if v.Integer() != 0 { + return AsValue(0) + } + return AsValue(1) + case reflect.Float32, reflect.Float64: + if v.Float() != 0.0 { + return AsValue(float64(0.0)) + } + return AsValue(float64(1.1)) + case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice, reflect.String: + return AsValue(v.getResolvedValue().Len() == 0) + case reflect.Bool: + return AsValue(!v.getResolvedValue().Bool()) + default: + logf("Value.IsTrue() not available for type: %s\n", v.getResolvedValue().Kind().String()) + return AsValue(true) + } +} + +// Returns the length for an array, chan, map, slice or string. +// Otherwise it will return 0. +func (v *Value) Len() int { + switch v.getResolvedValue().Kind() { + case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice: + return v.getResolvedValue().Len() + case reflect.String: + runes := []rune(v.getResolvedValue().String()) + return len(runes) + default: + logf("Value.Len() not available for type: %s\n", v.getResolvedValue().Kind().String()) + return 0 + } +} + +// Slices an array, slice or string. Otherwise it will +// return an empty []int. +func (v *Value) Slice(i, j int) *Value { + switch v.getResolvedValue().Kind() { + case reflect.Array, reflect.Slice: + return AsValue(v.getResolvedValue().Slice(i, j).Interface()) + case reflect.String: + runes := []rune(v.getResolvedValue().String()) + return AsValue(string(runes[i:j])) + default: + logf("Value.Slice() not available for type: %s\n", v.getResolvedValue().Kind().String()) + return AsValue([]int{}) + } +} + +// Get the i-th item of an array, slice or string. Otherwise +// it will return NIL. +func (v *Value) Index(i int) *Value { + switch v.getResolvedValue().Kind() { + case reflect.Array, reflect.Slice: + if i >= v.Len() { + return AsValue(nil) + } + return AsValue(v.getResolvedValue().Index(i).Interface()) + case reflect.String: + //return AsValue(v.getResolvedValue().Slice(i, i+1).Interface()) + s := v.getResolvedValue().String() + runes := []rune(s) + if i < len(runes) { + return AsValue(string(runes[i])) + } + return AsValue("") + default: + logf("Value.Slice() not available for type: %s\n", v.getResolvedValue().Kind().String()) + return AsValue([]int{}) + } +} + +// Contains checks whether the underlying value (which must be of type struct, map, +// string, array or slice) contains of another Value (e. g. used to check +// whether a struct contains of a specific field or a map contains a specific key). +// +// Example: +// AsValue("Hello, World!").Contains(AsValue("World")) == true +func (v *Value) Contains(other *Value) bool { + switch v.getResolvedValue().Kind() { + case reflect.Struct: + fieldValue := v.getResolvedValue().FieldByName(other.String()) + return fieldValue.IsValid() + case reflect.Map: + var mapValue reflect.Value + switch other.Interface().(type) { + case int: + mapValue = v.getResolvedValue().MapIndex(other.getResolvedValue()) + case string: + mapValue = v.getResolvedValue().MapIndex(other.getResolvedValue()) + default: + logf("Value.Contains() does not support lookup type '%s'\n", other.getResolvedValue().Kind().String()) + return false + } + + return mapValue.IsValid() + case reflect.String: + return strings.Contains(v.getResolvedValue().String(), other.String()) + + case reflect.Slice, reflect.Array: + for i := 0; i < v.getResolvedValue().Len(); i++ { + item := v.getResolvedValue().Index(i) + if other.Interface() == item.Interface() { + return true + } + } + return false + + default: + logf("Value.Contains() not available for type: %s\n", v.getResolvedValue().Kind().String()) + return false + } +} + +// Checks whether the underlying value is of type array, slice or string. +// You normally would use CanSlice() before using the Slice() operation. +func (v *Value) CanSlice() bool { + switch v.getResolvedValue().Kind() { + case reflect.Array, reflect.Slice, reflect.String: + return true + } + return false +} + +// Iterates over a map, array, slice or a string. It calls the +// function's first argument for every value with the following arguments: +// +// idx current 0-index +// count total amount of items +// key *Value for the key or item +// value *Value (only for maps, the respective value for a specific key) +// +// If the underlying value has no items or is not one of the types above, +// the empty function (function's second argument) will be called. +func (v *Value) Iterate(fn func(idx, count int, key, value *Value) bool, empty func()) { + v.IterateOrder(fn, empty, false, false) +} + +// Like Value.Iterate, but can iterate through an array/slice/string in reverse. Does +// not affect the iteration through a map because maps don't have any particular order. +func (v *Value) IterateOrder(fn func(idx, count int, key, value *Value) bool, empty func(), reverse bool, sorted bool) { + switch v.getResolvedValue().Kind() { + case reflect.Map: + keys := sortedKeys(v.getResolvedValue().MapKeys()) + if sorted { + if reverse { + sort.Sort(sort.Reverse(keys)) + } else { + sort.Sort(keys) + } + } + keyLen := len(keys) + for idx, key := range keys { + value := v.getResolvedValue().MapIndex(key) + if !fn(idx, keyLen, &Value{val: key}, &Value{val: value}) { + return + } + } + if keyLen == 0 { + empty() + } + return // done + case reflect.Array, reflect.Slice: + var items valuesList + + itemCount := v.getResolvedValue().Len() + for i := 0; i < itemCount; i++ { + items = append(items, &Value{val: v.getResolvedValue().Index(i)}) + } + + if sorted { + if reverse { + sort.Sort(sort.Reverse(items)) + } else { + sort.Sort(items) + } + } else { + if reverse { + for i := 0; i < itemCount/2; i++ { + items[i], items[itemCount-1-i] = items[itemCount-1-i], items[i] + } + } + } + + if len(items) > 0 { + for idx, item := range items { + if !fn(idx, itemCount, item, nil) { + return + } + } + } else { + empty() + } + return // done + case reflect.String: + if sorted { + // TODO(flosch): Handle sorted + panic("TODO: handle sort for type string") + } + + // TODO(flosch): Not utf8-compatible (utf8-decoding neccessary) + charCount := v.getResolvedValue().Len() + if charCount > 0 { + if reverse { + for i := charCount - 1; i >= 0; i-- { + if !fn(i, charCount, &Value{val: v.getResolvedValue().Slice(i, i+1)}, nil) { + return + } + } + } else { + for i := 0; i < charCount; i++ { + if !fn(i, charCount, &Value{val: v.getResolvedValue().Slice(i, i+1)}, nil) { + return + } + } + } + } else { + empty() + } + return // done + default: + logf("Value.Iterate() not available for type: %s\n", v.getResolvedValue().Kind().String()) + } + empty() +} + +// Gives you access to the underlying value. +func (v *Value) Interface() interface{} { + if v.val.IsValid() { + return v.val.Interface() + } + return nil +} + +// Checks whether two values are containing the same value or object. +func (v *Value) EqualValueTo(other *Value) bool { + // comparison of uint with int fails using .Interface()-comparison (see issue #64) + if v.IsInteger() && other.IsInteger() { + return v.Integer() == other.Integer() + } + return v.Interface() == other.Interface() +} + +type sortedKeys []reflect.Value + +func (sk sortedKeys) Len() int { + return len(sk) +} + +func (sk sortedKeys) Less(i, j int) bool { + vi := &Value{val: sk[i]} + vj := &Value{val: sk[j]} + switch { + case vi.IsInteger() && vj.IsInteger(): + return vi.Integer() < vj.Integer() + case vi.IsFloat() && vj.IsFloat(): + return vi.Float() < vj.Float() + default: + return vi.String() < vj.String() + } +} + +func (sk sortedKeys) Swap(i, j int) { + sk[i], sk[j] = sk[j], sk[i] +} + +type valuesList []*Value + +func (vl valuesList) Len() int { + return len(vl) +} + +func (vl valuesList) Less(i, j int) bool { + vi := vl[i] + vj := vl[j] + switch { + case vi.IsInteger() && vj.IsInteger(): + return vi.Integer() < vj.Integer() + case vi.IsFloat() && vj.IsFloat(): + return vi.Float() < vj.Float() + default: + return vi.String() < vj.String() + } +} + +func (vl valuesList) Swap(i, j int) { + vl[i], vl[j] = vl[j], vl[i] +} diff --git a/Godeps/_workspace/src/github.com/flosch/pongo2/variable.go b/Godeps/_workspace/src/github.com/flosch/pongo2/variable.go new file mode 100644 index 0000000..6dd6dc4 --- /dev/null +++ b/Godeps/_workspace/src/github.com/flosch/pongo2/variable.go @@ -0,0 +1,662 @@ +package pongo2 + +import ( + "fmt" + "reflect" + "strconv" + "strings" +) + +const ( + varTypeInt = iota + varTypeIdent +) + +type variablePart struct { + typ int + s string + i int + + isFunctionCall bool + callingArgs []functionCallArgument // needed for a function call, represents all argument nodes (INode supports nested function calls) +} + +type functionCallArgument interface { + Evaluate(*ExecutionContext) (*Value, *Error) +} + +// TODO: Add location tokens +type stringResolver struct { + locationToken *Token + val string +} + +type intResolver struct { + locationToken *Token + val int +} + +type floatResolver struct { + locationToken *Token + val float64 +} + +type boolResolver struct { + locationToken *Token + val bool +} + +type variableResolver struct { + locationToken *Token + + parts []*variablePart +} + +type nodeFilteredVariable struct { + locationToken *Token + + resolver IEvaluator + filterChain []*filterCall +} + +type nodeVariable struct { + locationToken *Token + expr IEvaluator +} + +func (v *nodeFilteredVariable) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + value, err := v.Evaluate(ctx) + if err != nil { + return err + } + writer.WriteString(value.String()) + return nil +} + +func (vr *variableResolver) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + value, err := vr.Evaluate(ctx) + if err != nil { + return err + } + writer.WriteString(value.String()) + return nil +} + +func (s *stringResolver) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + value, err := s.Evaluate(ctx) + if err != nil { + return err + } + writer.WriteString(value.String()) + return nil +} + +func (i *intResolver) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + value, err := i.Evaluate(ctx) + if err != nil { + return err + } + writer.WriteString(value.String()) + return nil +} + +func (f *floatResolver) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + value, err := f.Evaluate(ctx) + if err != nil { + return err + } + writer.WriteString(value.String()) + return nil +} + +func (b *boolResolver) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + value, err := b.Evaluate(ctx) + if err != nil { + return err + } + writer.WriteString(value.String()) + return nil +} + +func (v *nodeFilteredVariable) GetPositionToken() *Token { + return v.locationToken +} + +func (vr *variableResolver) GetPositionToken() *Token { + return vr.locationToken +} + +func (s *stringResolver) GetPositionToken() *Token { + return s.locationToken +} + +func (i *intResolver) GetPositionToken() *Token { + return i.locationToken +} + +func (f *floatResolver) GetPositionToken() *Token { + return f.locationToken +} + +func (b *boolResolver) GetPositionToken() *Token { + return b.locationToken +} + +func (s *stringResolver) Evaluate(ctx *ExecutionContext) (*Value, *Error) { + return AsValue(s.val), nil +} + +func (i *intResolver) Evaluate(ctx *ExecutionContext) (*Value, *Error) { + return AsValue(i.val), nil +} + +func (f *floatResolver) Evaluate(ctx *ExecutionContext) (*Value, *Error) { + return AsValue(f.val), nil +} + +func (b *boolResolver) Evaluate(ctx *ExecutionContext) (*Value, *Error) { + return AsValue(b.val), nil +} + +func (s *stringResolver) FilterApplied(name string) bool { + return false +} + +func (i *intResolver) FilterApplied(name string) bool { + return false +} + +func (f *floatResolver) FilterApplied(name string) bool { + return false +} + +func (b *boolResolver) FilterApplied(name string) bool { + return false +} + +func (nv *nodeVariable) FilterApplied(name string) bool { + return nv.expr.FilterApplied(name) +} + +func (nv *nodeVariable) Execute(ctx *ExecutionContext, writer TemplateWriter) *Error { + value, err := nv.expr.Evaluate(ctx) + if err != nil { + return err + } + + if !nv.expr.FilterApplied("safe") && !value.safe && value.IsString() && ctx.Autoescape { + // apply escape filter + value, err = filters["escape"](value, nil) + if err != nil { + return err + } + } + + writer.WriteString(value.String()) + return nil +} + +func (vr *variableResolver) FilterApplied(name string) bool { + return false +} + +func (vr *variableResolver) String() string { + parts := make([]string, 0, len(vr.parts)) + for _, p := range vr.parts { + switch p.typ { + case varTypeInt: + parts = append(parts, strconv.Itoa(p.i)) + case varTypeIdent: + parts = append(parts, p.s) + default: + panic("unimplemented") + } + } + return strings.Join(parts, ".") +} + +func (vr *variableResolver) resolve(ctx *ExecutionContext) (*Value, error) { + var current reflect.Value + var isSafe bool + + for idx, part := range vr.parts { + if idx == 0 { + // We're looking up the first part of the variable. + // First we're having a look in our private + // context (e. g. information provided by tags, like the forloop) + val, inPrivate := ctx.Private[vr.parts[0].s] + if !inPrivate { + // Nothing found? Then have a final lookup in the public context + val = ctx.Public[vr.parts[0].s] + } + current = reflect.ValueOf(val) // Get the initial value + } else { + // Next parts, resolve it from current + + // Before resolving the pointer, let's see if we have a method to call + // Problem with resolving the pointer is we're changing the receiver + isFunc := false + if part.typ == varTypeIdent { + funcValue := current.MethodByName(part.s) + if funcValue.IsValid() { + current = funcValue + isFunc = true + } + } + + if !isFunc { + // If current a pointer, resolve it + if current.Kind() == reflect.Ptr { + current = current.Elem() + if !current.IsValid() { + // Value is not valid (anymore) + return AsValue(nil), nil + } + } + + // Look up which part must be called now + switch part.typ { + case varTypeInt: + // Calling an index is only possible for: + // * slices/arrays/strings + switch current.Kind() { + case reflect.String, reflect.Array, reflect.Slice: + if current.Len() > part.i { + current = current.Index(part.i) + } else { + return nil, fmt.Errorf("Index out of range: %d (variable %s)", part.i, vr.String()) + } + default: + return nil, fmt.Errorf("Can't access an index on type %s (variable %s)", + current.Kind().String(), vr.String()) + } + case varTypeIdent: + // debugging: + // fmt.Printf("now = %s (kind: %s)\n", part.s, current.Kind().String()) + + // Calling a field or key + switch current.Kind() { + case reflect.Struct: + current = current.FieldByName(part.s) + case reflect.Map: + current = current.MapIndex(reflect.ValueOf(part.s)) + default: + return nil, fmt.Errorf("Can't access a field by name on type %s (variable %s)", + current.Kind().String(), vr.String()) + } + default: + panic("unimplemented") + } + } + } + + if !current.IsValid() { + // Value is not valid (anymore) + return AsValue(nil), nil + } + + // If current is a reflect.ValueOf(pongo2.Value), then unpack it + // Happens in function calls (as a return value) or by injecting + // into the execution context (e.g. in a for-loop) + if current.Type() == reflect.TypeOf(&Value{}) { + tmpValue := current.Interface().(*Value) + current = tmpValue.val + isSafe = tmpValue.safe + } + + // Check whether this is an interface and resolve it where required + if current.Kind() == reflect.Interface { + current = reflect.ValueOf(current.Interface()) + } + + // Check if the part is a function call + if part.isFunctionCall || current.Kind() == reflect.Func { + // Check for callable + if current.Kind() != reflect.Func { + return nil, fmt.Errorf("'%s' is not a function (it is %s)", vr.String(), current.Kind().String()) + } + + // Check for correct function syntax and types + // func(*Value, ...) *Value + t := current.Type() + + // Input arguments + if len(part.callingArgs) != t.NumIn() && !(len(part.callingArgs) >= t.NumIn()-1 && t.IsVariadic()) { + return nil, + fmt.Errorf("Function input argument count (%d) of '%s' must be equal to the calling argument count (%d).", + t.NumIn(), vr.String(), len(part.callingArgs)) + } + + // Output arguments + if t.NumOut() != 1 { + return nil, fmt.Errorf("'%s' must have exactly 1 output argument", vr.String()) + } + + // Evaluate all parameters + var parameters []reflect.Value + + numArgs := t.NumIn() + isVariadic := t.IsVariadic() + var fnArg reflect.Type + + for idx, arg := range part.callingArgs { + pv, err := arg.Evaluate(ctx) + if err != nil { + return nil, err + } + + if isVariadic { + if idx >= t.NumIn()-1 { + fnArg = t.In(numArgs - 1).Elem() + } else { + fnArg = t.In(idx) + } + } else { + fnArg = t.In(idx) + } + + if fnArg != reflect.TypeOf(new(Value)) { + // Function's argument is not a *pongo2.Value, then we have to check whether input argument is of the same type as the function's argument + if !isVariadic { + if fnArg != reflect.TypeOf(pv.Interface()) && fnArg.Kind() != reflect.Interface { + return nil, fmt.Errorf("Function input argument %d of '%s' must be of type %s or *pongo2.Value (not %T).", + idx, vr.String(), fnArg.String(), pv.Interface()) + } + // Function's argument has another type, using the interface-value + parameters = append(parameters, reflect.ValueOf(pv.Interface())) + } else { + if fnArg != reflect.TypeOf(pv.Interface()) && fnArg.Kind() != reflect.Interface { + return nil, fmt.Errorf("Function variadic input argument of '%s' must be of type %s or *pongo2.Value (not %T).", + vr.String(), fnArg.String(), pv.Interface()) + } + // Function's argument has another type, using the interface-value + parameters = append(parameters, reflect.ValueOf(pv.Interface())) + } + } else { + // Function's argument is a *pongo2.Value + parameters = append(parameters, reflect.ValueOf(pv)) + } + } + + // Check if any of the values are invalid + for _, p := range parameters { + if p.Kind() == reflect.Invalid { + return nil, fmt.Errorf("Calling a function using an invalid parameter") + } + } + + // Call it and get first return parameter back + rv := current.Call(parameters)[0] + + if rv.Type() != reflect.TypeOf(new(Value)) { + current = reflect.ValueOf(rv.Interface()) + } else { + // Return the function call value + current = rv.Interface().(*Value).val + isSafe = rv.Interface().(*Value).safe + } + } + + if !current.IsValid() { + // Value is not valid (e. g. NIL value) + return AsValue(nil), nil + } + } + + return &Value{val: current, safe: isSafe}, nil +} + +func (vr *variableResolver) Evaluate(ctx *ExecutionContext) (*Value, *Error) { + value, err := vr.resolve(ctx) + if err != nil { + return AsValue(nil), ctx.Error(err.Error(), vr.locationToken) + } + return value, nil +} + +func (v *nodeFilteredVariable) FilterApplied(name string) bool { + for _, filter := range v.filterChain { + if filter.name == name { + return true + } + } + return false +} + +func (v *nodeFilteredVariable) Evaluate(ctx *ExecutionContext) (*Value, *Error) { + value, err := v.resolver.Evaluate(ctx) + if err != nil { + return nil, err + } + + for _, filter := range v.filterChain { + value, err = filter.Execute(value, ctx) + if err != nil { + return nil, err + } + } + + return value, nil +} + +// IDENT | IDENT.(IDENT|NUMBER)... +func (p *Parser) parseVariableOrLiteral() (IEvaluator, *Error) { + t := p.Current() + + if t == nil { + return nil, p.Error("Unexpected EOF, expected a number, string, keyword or identifier.", p.lastToken) + } + + // Is first part a number or a string, there's nothing to resolve (because there's only to return the value then) + switch t.Typ { + case TokenNumber: + p.Consume() + + // One exception to the rule that we don't have float64 literals is at the beginning + // of an expression (or a variable name). Since we know we started with an integer + // which can't obviously be a variable name, we can check whether the first number + // is followed by dot (and then a number again). If so we're converting it to a float64. + + if p.Match(TokenSymbol, ".") != nil { + // float64 + t2 := p.MatchType(TokenNumber) + if t2 == nil { + return nil, p.Error("Expected a number after the '.'.", nil) + } + f, err := strconv.ParseFloat(fmt.Sprintf("%s.%s", t.Val, t2.Val), 64) + if err != nil { + return nil, p.Error(err.Error(), t) + } + fr := &floatResolver{ + locationToken: t, + val: f, + } + return fr, nil + } + i, err := strconv.Atoi(t.Val) + if err != nil { + return nil, p.Error(err.Error(), t) + } + nr := &intResolver{ + locationToken: t, + val: i, + } + return nr, nil + + case TokenString: + p.Consume() + sr := &stringResolver{ + locationToken: t, + val: t.Val, + } + return sr, nil + case TokenKeyword: + p.Consume() + switch t.Val { + case "true": + br := &boolResolver{ + locationToken: t, + val: true, + } + return br, nil + case "false": + br := &boolResolver{ + locationToken: t, + val: false, + } + return br, nil + default: + return nil, p.Error("This keyword is not allowed here.", nil) + } + } + + resolver := &variableResolver{ + locationToken: t, + } + + // First part of a variable MUST be an identifier + if t.Typ != TokenIdentifier { + return nil, p.Error("Expected either a number, string, keyword or identifier.", t) + } + + resolver.parts = append(resolver.parts, &variablePart{ + typ: varTypeIdent, + s: t.Val, + }) + + p.Consume() // we consumed the first identifier of the variable name + +variableLoop: + for p.Remaining() > 0 { + t = p.Current() + + if p.Match(TokenSymbol, ".") != nil { + // Next variable part (can be either NUMBER or IDENT) + t2 := p.Current() + if t2 != nil { + switch t2.Typ { + case TokenIdentifier: + resolver.parts = append(resolver.parts, &variablePart{ + typ: varTypeIdent, + s: t2.Val, + }) + p.Consume() // consume: IDENT + continue variableLoop + case TokenNumber: + i, err := strconv.Atoi(t2.Val) + if err != nil { + return nil, p.Error(err.Error(), t2) + } + resolver.parts = append(resolver.parts, &variablePart{ + typ: varTypeInt, + i: i, + }) + p.Consume() // consume: NUMBER + continue variableLoop + default: + return nil, p.Error("This token is not allowed within a variable name.", t2) + } + } else { + // EOF + return nil, p.Error("Unexpected EOF, expected either IDENTIFIER or NUMBER after DOT.", + p.lastToken) + } + } else if p.Match(TokenSymbol, "(") != nil { + // Function call + // FunctionName '(' Comma-separated list of expressions ')' + part := resolver.parts[len(resolver.parts)-1] + part.isFunctionCall = true + argumentLoop: + for { + if p.Remaining() == 0 { + return nil, p.Error("Unexpected EOF, expected function call argument list.", p.lastToken) + } + + if p.Peek(TokenSymbol, ")") == nil { + // No closing bracket, so we're parsing an expression + exprArg, err := p.ParseExpression() + if err != nil { + return nil, err + } + part.callingArgs = append(part.callingArgs, exprArg) + + if p.Match(TokenSymbol, ")") != nil { + // If there's a closing bracket after an expression, we will stop parsing the arguments + break argumentLoop + } else { + // If there's NO closing bracket, there MUST be an comma + if p.Match(TokenSymbol, ",") == nil { + return nil, p.Error("Missing comma or closing bracket after argument.", nil) + } + } + } else { + // We got a closing bracket, so stop parsing arguments + p.Consume() + break argumentLoop + } + + } + // We're done parsing the function call, next variable part + continue variableLoop + } + + // No dot or function call? Then we're done with the variable parsing + break + } + + return resolver, nil +} + +func (p *Parser) parseVariableOrLiteralWithFilter() (*nodeFilteredVariable, *Error) { + v := &nodeFilteredVariable{ + locationToken: p.Current(), + } + + // Parse the variable name + resolver, err := p.parseVariableOrLiteral() + if err != nil { + return nil, err + } + v.resolver = resolver + + // Parse all the filters +filterLoop: + for p.Match(TokenSymbol, "|") != nil { + // Parse one single filter + filter, err := p.parseFilter() + if err != nil { + return nil, err + } + + // Check sandbox filter restriction + if _, isBanned := p.template.set.bannedFilters[filter.name]; isBanned { + return nil, p.Error(fmt.Sprintf("Usage of filter '%s' is not allowed (sandbox restriction active).", filter.name), nil) + } + + v.filterChain = append(v.filterChain, filter) + + continue filterLoop + } + + return v, nil +} + +func (p *Parser) parseVariableElement() (INode, *Error) { + node := &nodeVariable{ + locationToken: p.Current(), + } + + p.Consume() // consume '{{' + + expr, err := p.ParseExpression() + if err != nil { + return nil, err + } + node.expr = expr + + if p.Match(TokenSymbol, "}}") == nil { + return nil, p.Error("'}}' expected", nil) + } + + return node, nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/.gitignore b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/.gitignore new file mode 100644 index 0000000..5f6b48e --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/.gitignore @@ -0,0 +1,2 @@ +# temporary symlink for testing +testing/data/symlink diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/.travis.yml b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/.travis.yml new file mode 100644 index 0000000..d062464 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/.travis.yml @@ -0,0 +1,15 @@ +language: go +sudo: required +go: + - 1.3.3 + - 1.4.2 + - 1.5.1 + - tip +env: + - GOARCH=amd64 + - GOARCH=386 +script: + - make test + - DOCKER_HOST=tcp://127.0.0.1:2375 make integration +services: + - docker diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/AUTHORS b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/AUTHORS new file mode 100644 index 0000000..b6c3d80 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/AUTHORS @@ -0,0 +1,106 @@ +# This is the official list of go-dockerclient authors for copyright purposes. + +Abhishek Chanda +Adam Bell-Hanssen +Adrien Kohlbecker +Aldrin Leal +Andreas Jaekle +Andrews Medina +Artem Sidorenko +Andy Goldstein +Ben Marini +Ben McCann +Brendan Fosberry +Brian Lalor +Brian Palmer +Bryan Boreham +Burke Libbey +Carlos Diaz-Padron +Cesar Wong +Cezar Sa Espinola +Cheah Chu Yeow +cheneydeng +Chris Bednarski +CMGS +Craig Jellick +Dan Williams +Daniel, Dao Quang Minh +Daniel Garcia +Darren Shepherd +Dave Choi +David Huie +Dawn Chen +Dinesh Subhraveti +Ed +Elias G. Schneevoigt +Erez Horev +Eric Anderson +Ewout Prangsma +Fabio Rehm +Fatih Arslan +Flavia Missi +Francisco Souza +Grégoire Delattre +Guillermo Álvarez Fernández +He Simei +Ivan Mikushin +James Bardin +Jari Kolehmainen +Jason Wilder +Jawher Moussa +Jean-Baptiste Dalido +Jeff Mitchell +Jeffrey Hulten +Jen Andre +Johan Euphrosine +Kamil Domanski +Karan Misra +Kim, Hirokuni +Kyle Allan +Liron Levin +Liu Peng +Lorenz Leutgeb +Lucas Clemente +Lucas Weiblen +Mantas Matelis +Martin Sweeney +Máximo Cuadros Ortiz +Michal Fojtik +Mike Dillon +Mrunal Patel +Nick Ethier +Omeid Matten +Orivej Desh +Paul Bellamy +Paul Morie +Paul Weil +Peter Edge +Peter Jihoon Kim +Phil Lu +Philippe Lafoucrière +Rafe Colton +Rob Miller +Robert Williamson +Salvador Gironès +Sam Rijs +Sami Wagiaalla +Samuel Karp +Silas Sewell +Simon Eskildsen +Simon Menke +Skolos +Soulou +Sridhar Ratnakumar +Summer Mousa +Sunjin Lee +Tarsis Azevedo +Tim Schindler +Tobi Knaup +Tonic +ttyh061 +Victor Marmol +Vincenzo Prignano +Wiliam Souza +Ye Yin +Yu, Zou +Yuriy Bogdanov diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/DOCKER-LICENSE b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/DOCKER-LICENSE new file mode 100644 index 0000000..7066344 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/DOCKER-LICENSE @@ -0,0 +1,6 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + +You can find the Docker license at the following link: +https://raw.githubusercontent.com/docker/docker/master/LICENSE diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/LICENSE b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/LICENSE new file mode 100644 index 0000000..4e11de1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/LICENSE @@ -0,0 +1,22 @@ +Copyright (c) 2015, go-dockerclient authors +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, +this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright notice, +this list of conditions and the following disclaimer in the documentation +and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/Makefile b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/Makefile new file mode 100644 index 0000000..4d5d840 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/Makefile @@ -0,0 +1,51 @@ +.PHONY: \ + all \ + vendor \ + lint \ + vet \ + fmt \ + fmtcheck \ + pretest \ + test \ + integration \ + cov \ + clean + +SRCS = $(shell git ls-files '*.go' | grep -v '^external/') +PKGS = ./. ./testing + +all: test + +vendor: + @ go get -v github.com/mjibson/party + party -d external -c -u + +lint: + @ go get -v github.com/golang/lint/golint + $(foreach file,$(SRCS),golint $(file) || exit;) + +vet: + @-go get -v golang.org/x/tools/cmd/vet + $(foreach pkg,$(PKGS),go vet $(pkg);) + +fmt: + gofmt -w $(SRCS) + +fmtcheck: + $(foreach file,$(SRCS),gofmt -d $(file);) + +pretest: lint vet fmtcheck + +test: pretest + $(foreach pkg,$(PKGS),go test $(pkg) || exit;) + +integration: + go test -tags docker_integration -run TestIntegration -v + +cov: + @ go get -v github.com/axw/gocov/gocov + @ go get golang.org/x/tools/cmd/cover + gocov test | gocov report + +clean: + $(foreach pkg,$(PKGS),go clean $(pkg) || exit;) diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/README.markdown b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/README.markdown new file mode 100644 index 0000000..9f3c0ca --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/README.markdown @@ -0,0 +1,106 @@ +# go-dockerclient + +[![Drone](https://drone.io/github.com/fsouza/go-dockerclient/status.png)](https://drone.io/github.com/fsouza/go-dockerclient/latest) +[![Travis](https://img.shields.io/travis/fsouza/go-dockerclient.svg?style=flat-square)](https://travis-ci.org/fsouza/go-dockerclient) +[![GoDoc](https://img.shields.io/badge/api-Godoc-blue.svg?style=flat-square)](https://godoc.org/github.com/fsouza/go-dockerclient) + +This package presents a client for the Docker remote API. It also provides +support for the extensions in the [Swarm API](https://docs.docker.com/swarm/api/swarm-api/). + +This package also provides support for docker's network API, which is a simple +passthrough to the libnetwork remote API. Note that docker's network API is +only available in docker 1.8 and above, and only enabled in docker if +DOCKER_EXPERIMENTAL is defined during the docker build process. + +For more details, check the [remote API documentation](http://docs.docker.com/en/latest/reference/api/docker_remote_api/). + +## Vendoring + +If you are having issues with Go 1.5 and have `GO15VENDOREXPERIMENT` set with an application that has go-dockerclient vendored, +please update your vendoring of go-dockerclient :) We recently moved the `vendor` directory to `external` so that go-dockerclient +is compatible with this configuration. See [338](https://github.com/fsouza/go-dockerclient/issues/338) and [339](https://github.com/fsouza/go-dockerclient/pull/339) +for details. + +## Example + +```go +package main + +import ( + "fmt" + + "github.com/fsouza/go-dockerclient" +) + +func main() { + endpoint := "unix:///var/run/docker.sock" + client, _ := docker.NewClient(endpoint) + imgs, _ := client.ListImages(docker.ListImagesOptions{All: false}) + for _, img := range imgs { + fmt.Println("ID: ", img.ID) + fmt.Println("RepoTags: ", img.RepoTags) + fmt.Println("Created: ", img.Created) + fmt.Println("Size: ", img.Size) + fmt.Println("VirtualSize: ", img.VirtualSize) + fmt.Println("ParentId: ", img.ParentID) + } +} +``` + +## Using with TLS + +In order to instantiate the client for a TLS-enabled daemon, you should use NewTLSClient, passing the endpoint and path for key and certificates as parameters. + +```go +package main + +import ( + "fmt" + + "github.com/fsouza/go-dockerclient" +) + +func main() { + endpoint := "tcp://[ip]:[port]" + path := os.Getenv("DOCKER_CERT_PATH") + ca := fmt.Sprintf("%s/ca.pem", path) + cert := fmt.Sprintf("%s/cert.pem", path) + key := fmt.Sprintf("%s/key.pem", path) + client, _ := docker.NewTLSClient(endpoint, cert, key, ca) + // use client +} +``` + +If using [docker-machine](https://docs.docker.com/machine/), or another application that exports environment variables +`DOCKER_HOST, DOCKER_TLS_VERIFY, DOCKER_CERT_PATH`, you can use NewClientFromEnv. + + +```go +package main + +import ( + "fmt" + + "github.com/fsouza/go-dockerclient" +) + +func main() { + client, _ := docker.NewClientFromEnv() + // use client +} +``` + +See the documentation for more details. + +## Developing + +All development commands can be seen in the [Makefile](Makefile). + +Commited code must pass: + +* [golint](https://github.com/golang/lint) +* [go vet](https://godoc.org/golang.org/x/tools/cmd/vet) +* [gofmt](https://golang.org/cmd/gofmt) +* [go test](https://golang.org/cmd/go/#hdr-Test_packages) + +Running `make test` will check all of these. If your editor does not automatically call gofmt, `make fmt` will format all go files in this repository. diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/auth.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/auth.go new file mode 100644 index 0000000..30e3af3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/auth.go @@ -0,0 +1,136 @@ +// Copyright 2015 go-dockerclient authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package docker + +import ( + "bytes" + "encoding/base64" + "encoding/json" + "errors" + "fmt" + "io" + "os" + "path" + "strings" +) + +// ErrCannotParseDockercfg is the error returned by NewAuthConfigurations when the dockercfg cannot be parsed. +var ErrCannotParseDockercfg = errors.New("Failed to read authentication from dockercfg") + +// AuthConfiguration represents authentication options to use in the PushImage +// method. It represents the authentication in the Docker index server. +type AuthConfiguration struct { + Username string `json:"username,omitempty"` + Password string `json:"password,omitempty"` + Email string `json:"email,omitempty"` + ServerAddress string `json:"serveraddress,omitempty"` +} + +// AuthConfigurations represents authentication options to use for the +// PushImage method accommodating the new X-Registry-Config header +type AuthConfigurations struct { + Configs map[string]AuthConfiguration `json:"configs"` +} + +// AuthConfigurations119 is used to serialize a set of AuthConfigurations +// for Docker API >= 1.19. +type AuthConfigurations119 map[string]AuthConfiguration + +// dockerConfig represents a registry authentation configuration from the +// .dockercfg file. +type dockerConfig struct { + Auth string `json:"auth"` + Email string `json:"email"` +} + +// NewAuthConfigurationsFromDockerCfg returns AuthConfigurations from the +// ~/.dockercfg file. +func NewAuthConfigurationsFromDockerCfg() (*AuthConfigurations, error) { + var r io.Reader + var err error + p := path.Join(os.Getenv("HOME"), ".docker", "config.json") + r, err = os.Open(p) + if err != nil { + p := path.Join(os.Getenv("HOME"), ".dockercfg") + r, err = os.Open(p) + if err != nil { + return nil, err + } + } + return NewAuthConfigurations(r) +} + +// NewAuthConfigurations returns AuthConfigurations from a JSON encoded string in the +// same format as the .dockercfg file. +func NewAuthConfigurations(r io.Reader) (*AuthConfigurations, error) { + var auth *AuthConfigurations + confs, err := parseDockerConfig(r) + if err != nil { + return nil, err + } + auth, err = authConfigs(confs) + if err != nil { + return nil, err + } + return auth, nil +} + +func parseDockerConfig(r io.Reader) (map[string]dockerConfig, error) { + buf := new(bytes.Buffer) + buf.ReadFrom(r) + byteData := buf.Bytes() + + var confsWrapper map[string]map[string]dockerConfig + if err := json.Unmarshal(byteData, &confsWrapper); err == nil { + if confs, ok := confsWrapper["auths"]; ok { + return confs, nil + } + } + + var confs map[string]dockerConfig + if err := json.Unmarshal(byteData, &confs); err != nil { + return nil, err + } + return confs, nil +} + +// authConfigs converts a dockerConfigs map to a AuthConfigurations object. +func authConfigs(confs map[string]dockerConfig) (*AuthConfigurations, error) { + c := &AuthConfigurations{ + Configs: make(map[string]AuthConfiguration), + } + for reg, conf := range confs { + data, err := base64.StdEncoding.DecodeString(conf.Auth) + if err != nil { + return nil, err + } + userpass := strings.Split(string(data), ":") + if len(userpass) != 2 { + return nil, ErrCannotParseDockercfg + } + c.Configs[reg] = AuthConfiguration{ + Email: conf.Email, + Username: userpass[0], + Password: userpass[1], + ServerAddress: reg, + } + } + return c, nil +} + +// AuthCheck validates the given credentials. It returns nil if successful. +// +// See https://goo.gl/m2SleN for more details. +func (c *Client) AuthCheck(conf *AuthConfiguration) error { + if conf == nil { + return fmt.Errorf("conf is nil") + } + resp, err := c.do("POST", "/auth", doOptions{data: conf}) + if err != nil { + return err + } + resp.Body.Close() + return nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/change.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/change.go new file mode 100644 index 0000000..d133594 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/change.go @@ -0,0 +1,43 @@ +// Copyright 2014 go-dockerclient authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package docker + +import "fmt" + +// ChangeType is a type for constants indicating the type of change +// in a container +type ChangeType int + +const ( + // ChangeModify is the ChangeType for container modifications + ChangeModify ChangeType = iota + + // ChangeAdd is the ChangeType for additions to a container + ChangeAdd + + // ChangeDelete is the ChangeType for deletions from a container + ChangeDelete +) + +// Change represents a change in a container. +// +// See https://goo.gl/9GsTIF for more details. +type Change struct { + Path string + Kind ChangeType +} + +func (change *Change) String() string { + var kind string + switch change.Kind { + case ChangeModify: + kind = "C" + case ChangeAdd: + kind = "A" + case ChangeDelete: + kind = "D" + } + return fmt.Sprintf("%s %s", kind, change.Path) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/client.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/client.go new file mode 100644 index 0000000..1feb3c0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/client.go @@ -0,0 +1,872 @@ +// Copyright 2015 go-dockerclient authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package docker provides a client for the Docker remote API. +// +// See https://goo.gl/G3plxW for more details on the remote API. +package docker + +import ( + "bufio" + "bytes" + "crypto/tls" + "crypto/x509" + "encoding/json" + "errors" + "fmt" + "io" + "io/ioutil" + "net" + "net/http" + "net/http/httputil" + "net/url" + "os" + "path/filepath" + "reflect" + "runtime" + "strconv" + "strings" + "time" + + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts" + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/homedir" + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/stdcopy" +) + +const userAgent = "go-dockerclient" + +var ( + // ErrInvalidEndpoint is returned when the endpoint is not a valid HTTP URL. + ErrInvalidEndpoint = errors.New("invalid endpoint") + + // ErrConnectionRefused is returned when the client cannot connect to the given endpoint. + ErrConnectionRefused = errors.New("cannot connect to Docker endpoint") + + apiVersion112, _ = NewAPIVersion("1.12") + + apiVersion119, _ = NewAPIVersion("1.19") +) + +// APIVersion is an internal representation of a version of the Remote API. +type APIVersion []int + +// NewAPIVersion returns an instance of APIVersion for the given string. +// +// The given string must be in the form .., where , +// and are integer numbers. +func NewAPIVersion(input string) (APIVersion, error) { + if !strings.Contains(input, ".") { + return nil, fmt.Errorf("Unable to parse version %q", input) + } + arr := strings.Split(input, ".") + ret := make(APIVersion, len(arr)) + var err error + for i, val := range arr { + ret[i], err = strconv.Atoi(val) + if err != nil { + return nil, fmt.Errorf("Unable to parse version %q: %q is not an integer", input, val) + } + } + return ret, nil +} + +func (version APIVersion) String() string { + var str string + for i, val := range version { + str += strconv.Itoa(val) + if i < len(version)-1 { + str += "." + } + } + return str +} + +// LessThan is a function for comparing APIVersion structs +func (version APIVersion) LessThan(other APIVersion) bool { + return version.compare(other) < 0 +} + +// LessThanOrEqualTo is a function for comparing APIVersion structs +func (version APIVersion) LessThanOrEqualTo(other APIVersion) bool { + return version.compare(other) <= 0 +} + +// GreaterThan is a function for comparing APIVersion structs +func (version APIVersion) GreaterThan(other APIVersion) bool { + return version.compare(other) > 0 +} + +// GreaterThanOrEqualTo is a function for comparing APIVersion structs +func (version APIVersion) GreaterThanOrEqualTo(other APIVersion) bool { + return version.compare(other) >= 0 +} + +func (version APIVersion) compare(other APIVersion) int { + for i, v := range version { + if i <= len(other)-1 { + otherVersion := other[i] + + if v < otherVersion { + return -1 + } else if v > otherVersion { + return 1 + } + } + } + if len(version) > len(other) { + return 1 + } + if len(version) < len(other) { + return -1 + } + return 0 +} + +// Client is the basic type of this package. It provides methods for +// interaction with the API. +type Client struct { + SkipServerVersionCheck bool + HTTPClient *http.Client + TLSConfig *tls.Config + Dialer *net.Dialer + + endpoint string + endpointURL *url.URL + eventMonitor *eventMonitoringState + requestedAPIVersion APIVersion + serverAPIVersion APIVersion + expectedAPIVersion APIVersion + unixHTTPClient *http.Client +} + +// NewClient returns a Client instance ready for communication with the given +// server endpoint. It will use the latest remote API version available in the +// server. +func NewClient(endpoint string) (*Client, error) { + client, err := NewVersionedClient(endpoint, "") + if err != nil { + return nil, err + } + client.SkipServerVersionCheck = true + return client, nil +} + +// NewTLSClient returns a Client instance ready for TLS communications with the givens +// server endpoint, key and certificates . It will use the latest remote API version +// available in the server. +func NewTLSClient(endpoint string, cert, key, ca string) (*Client, error) { + client, err := NewVersionedTLSClient(endpoint, cert, key, ca, "") + if err != nil { + return nil, err + } + client.SkipServerVersionCheck = true + return client, nil +} + +// NewTLSClientFromBytes returns a Client instance ready for TLS communications with the givens +// server endpoint, key and certificates (passed inline to the function as opposed to being +// read from a local file). It will use the latest remote API version available in the server. +func NewTLSClientFromBytes(endpoint string, certPEMBlock, keyPEMBlock, caPEMCert []byte) (*Client, error) { + client, err := NewVersionedTLSClientFromBytes(endpoint, certPEMBlock, keyPEMBlock, caPEMCert, "") + if err != nil { + return nil, err + } + client.SkipServerVersionCheck = true + return client, nil +} + +// NewVersionedClient returns a Client instance ready for communication with +// the given server endpoint, using a specific remote API version. +func NewVersionedClient(endpoint string, apiVersionString string) (*Client, error) { + u, err := parseEndpoint(endpoint, false) + if err != nil { + return nil, err + } + var requestedAPIVersion APIVersion + if strings.Contains(apiVersionString, ".") { + requestedAPIVersion, err = NewAPIVersion(apiVersionString) + if err != nil { + return nil, err + } + } + return &Client{ + HTTPClient: &http.Client{}, + Dialer: &net.Dialer{}, + endpoint: endpoint, + endpointURL: u, + eventMonitor: new(eventMonitoringState), + requestedAPIVersion: requestedAPIVersion, + }, nil +} + +// NewVersionnedTLSClient has been DEPRECATED, please use NewVersionedTLSClient. +func NewVersionnedTLSClient(endpoint string, cert, key, ca, apiVersionString string) (*Client, error) { + return NewVersionedTLSClient(endpoint, cert, key, ca, apiVersionString) +} + +// NewVersionedTLSClient returns a Client instance ready for TLS communications with the givens +// server endpoint, key and certificates, using a specific remote API version. +func NewVersionedTLSClient(endpoint string, cert, key, ca, apiVersionString string) (*Client, error) { + certPEMBlock, err := ioutil.ReadFile(cert) + if err != nil { + return nil, err + } + keyPEMBlock, err := ioutil.ReadFile(key) + if err != nil { + return nil, err + } + caPEMCert, err := ioutil.ReadFile(ca) + if err != nil { + return nil, err + } + return NewVersionedTLSClientFromBytes(endpoint, certPEMBlock, keyPEMBlock, caPEMCert, apiVersionString) +} + +// NewClientFromEnv returns a Client instance ready for communication created from +// Docker's default logic for the environment variables DOCKER_HOST, DOCKER_TLS_VERIFY, and DOCKER_CERT_PATH. +// +// See https://github.com/docker/docker/blob/1f963af697e8df3a78217f6fdbf67b8123a7db94/docker/docker.go#L68. +// See https://github.com/docker/compose/blob/81707ef1ad94403789166d2fe042c8a718a4c748/compose/cli/docker_client.py#L7. +func NewClientFromEnv() (*Client, error) { + client, err := NewVersionedClientFromEnv("") + if err != nil { + return nil, err + } + client.SkipServerVersionCheck = true + return client, nil +} + +// NewVersionedClientFromEnv returns a Client instance ready for TLS communications created from +// Docker's default logic for the environment variables DOCKER_HOST, DOCKER_TLS_VERIFY, and DOCKER_CERT_PATH, +// and using a specific remote API version. +// +// See https://github.com/docker/docker/blob/1f963af697e8df3a78217f6fdbf67b8123a7db94/docker/docker.go#L68. +// See https://github.com/docker/compose/blob/81707ef1ad94403789166d2fe042c8a718a4c748/compose/cli/docker_client.py#L7. +func NewVersionedClientFromEnv(apiVersionString string) (*Client, error) { + dockerEnv, err := getDockerEnv() + if err != nil { + return nil, err + } + dockerHost := dockerEnv.dockerHost + if dockerEnv.dockerTLSVerify { + parts := strings.SplitN(dockerEnv.dockerHost, "://", 2) + if len(parts) != 2 { + return nil, fmt.Errorf("could not split %s into two parts by ://", dockerHost) + } + cert := filepath.Join(dockerEnv.dockerCertPath, "cert.pem") + key := filepath.Join(dockerEnv.dockerCertPath, "key.pem") + ca := filepath.Join(dockerEnv.dockerCertPath, "ca.pem") + return NewVersionedTLSClient(dockerEnv.dockerHost, cert, key, ca, apiVersionString) + } + return NewVersionedClient(dockerEnv.dockerHost, apiVersionString) +} + +// NewVersionedTLSClientFromBytes returns a Client instance ready for TLS communications with the givens +// server endpoint, key and certificates (passed inline to the function as opposed to being +// read from a local file), using a specific remote API version. +func NewVersionedTLSClientFromBytes(endpoint string, certPEMBlock, keyPEMBlock, caPEMCert []byte, apiVersionString string) (*Client, error) { + u, err := parseEndpoint(endpoint, true) + if err != nil { + return nil, err + } + var requestedAPIVersion APIVersion + if strings.Contains(apiVersionString, ".") { + requestedAPIVersion, err = NewAPIVersion(apiVersionString) + if err != nil { + return nil, err + } + } + if certPEMBlock == nil || keyPEMBlock == nil { + return nil, errors.New("Both cert and key are required") + } + tlsCert, err := tls.X509KeyPair(certPEMBlock, keyPEMBlock) + if err != nil { + return nil, err + } + tlsConfig := &tls.Config{Certificates: []tls.Certificate{tlsCert}} + if caPEMCert == nil { + tlsConfig.InsecureSkipVerify = true + } else { + caPool := x509.NewCertPool() + if !caPool.AppendCertsFromPEM(caPEMCert) { + return nil, errors.New("Could not add RootCA pem") + } + tlsConfig.RootCAs = caPool + } + tr := &http.Transport{ + TLSClientConfig: tlsConfig, + } + if err != nil { + return nil, err + } + return &Client{ + HTTPClient: &http.Client{Transport: tr}, + TLSConfig: tlsConfig, + Dialer: &net.Dialer{}, + endpoint: endpoint, + endpointURL: u, + eventMonitor: new(eventMonitoringState), + requestedAPIVersion: requestedAPIVersion, + }, nil +} + +func (c *Client) checkAPIVersion() error { + serverAPIVersionString, err := c.getServerAPIVersionString() + if err != nil { + return err + } + c.serverAPIVersion, err = NewAPIVersion(serverAPIVersionString) + if err != nil { + return err + } + if c.requestedAPIVersion == nil { + c.expectedAPIVersion = c.serverAPIVersion + } else { + c.expectedAPIVersion = c.requestedAPIVersion + } + return nil +} + +// Endpoint returns the current endpoint. It's useful for getting the endpoint +// when using functions that get this data from the environment (like +// NewClientFromEnv. +func (c *Client) Endpoint() string { + return c.endpoint +} + +// Ping pings the docker server +// +// See https://goo.gl/kQCfJj for more details. +func (c *Client) Ping() error { + path := "/_ping" + resp, err := c.do("GET", path, doOptions{}) + if err != nil { + return err + } + if resp.StatusCode != http.StatusOK { + return newError(resp) + } + resp.Body.Close() + return nil +} + +func (c *Client) getServerAPIVersionString() (version string, err error) { + resp, err := c.do("GET", "/version", doOptions{}) + if err != nil { + return "", err + } + defer resp.Body.Close() + if resp.StatusCode != http.StatusOK { + return "", fmt.Errorf("Received unexpected status %d while trying to retrieve the server version", resp.StatusCode) + } + var versionResponse map[string]interface{} + if err := json.NewDecoder(resp.Body).Decode(&versionResponse); err != nil { + return "", err + } + if version, ok := (versionResponse["ApiVersion"]).(string); ok { + return version, nil + } + return "", nil +} + +type doOptions struct { + data interface{} + forceJSON bool + headers map[string]string +} + +func (c *Client) do(method, path string, doOptions doOptions) (*http.Response, error) { + var params io.Reader + if doOptions.data != nil || doOptions.forceJSON { + buf, err := json.Marshal(doOptions.data) + if err != nil { + return nil, err + } + params = bytes.NewBuffer(buf) + } + if path != "/version" && !c.SkipServerVersionCheck && c.expectedAPIVersion == nil { + err := c.checkAPIVersion() + if err != nil { + return nil, err + } + } + httpClient := c.HTTPClient + protocol := c.endpointURL.Scheme + var u string + if protocol == "unix" { + httpClient = c.unixClient() + u = c.getFakeUnixURL(path) + } else { + u = c.getURL(path) + } + req, err := http.NewRequest(method, u, params) + if err != nil { + return nil, err + } + req.Header.Set("User-Agent", userAgent) + if doOptions.data != nil { + req.Header.Set("Content-Type", "application/json") + } else if method == "POST" { + req.Header.Set("Content-Type", "plain/text") + } + + for k, v := range doOptions.headers { + req.Header.Set(k, v) + } + resp, err := httpClient.Do(req) + if err != nil { + if strings.Contains(err.Error(), "connection refused") { + return nil, ErrConnectionRefused + } + return nil, err + } + if resp.StatusCode < 200 || resp.StatusCode >= 400 { + return nil, newError(resp) + } + return resp, nil +} + +type streamOptions struct { + setRawTerminal bool + rawJSONStream bool + useJSONDecoder bool + headers map[string]string + in io.Reader + stdout io.Writer + stderr io.Writer + // timeout is the inital connection timeout + timeout time.Duration +} + +func (c *Client) stream(method, path string, streamOptions streamOptions) error { + if (method == "POST" || method == "PUT") && streamOptions.in == nil { + streamOptions.in = bytes.NewReader(nil) + } + if path != "/version" && !c.SkipServerVersionCheck && c.expectedAPIVersion == nil { + err := c.checkAPIVersion() + if err != nil { + return err + } + } + req, err := http.NewRequest(method, c.getURL(path), streamOptions.in) + if err != nil { + return err + } + req.Header.Set("User-Agent", userAgent) + if method == "POST" { + req.Header.Set("Content-Type", "plain/text") + } + for key, val := range streamOptions.headers { + req.Header.Set(key, val) + } + var resp *http.Response + protocol := c.endpointURL.Scheme + address := c.endpointURL.Path + if streamOptions.stdout == nil { + streamOptions.stdout = ioutil.Discard + } + if streamOptions.stderr == nil { + streamOptions.stderr = ioutil.Discard + } + if protocol == "unix" { + dial, err := c.Dialer.Dial(protocol, address) + if err != nil { + return err + } + defer dial.Close() + breader := bufio.NewReader(dial) + err = req.Write(dial) + if err != nil { + return err + } + + // ReadResponse may hang if server does not replay + if streamOptions.timeout > 0 { + dial.SetDeadline(time.Now().Add(streamOptions.timeout)) + } + + if resp, err = http.ReadResponse(breader, req); err != nil { + // Cancel timeout for future I/O operations + if streamOptions.timeout > 0 { + dial.SetDeadline(time.Time{}) + } + if strings.Contains(err.Error(), "connection refused") { + return ErrConnectionRefused + } + return err + } + } else { + if resp, err = c.HTTPClient.Do(req); err != nil { + if strings.Contains(err.Error(), "connection refused") { + return ErrConnectionRefused + } + return err + } + } + defer resp.Body.Close() + if resp.StatusCode < 200 || resp.StatusCode >= 400 { + return newError(resp) + } + if streamOptions.useJSONDecoder || resp.Header.Get("Content-Type") == "application/json" { + // if we want to get raw json stream, just copy it back to output + // without decoding it + if streamOptions.rawJSONStream { + _, err = io.Copy(streamOptions.stdout, resp.Body) + return err + } + dec := json.NewDecoder(resp.Body) + for { + var m jsonMessage + if err := dec.Decode(&m); err == io.EOF { + break + } else if err != nil { + return err + } + if m.Stream != "" { + fmt.Fprint(streamOptions.stdout, m.Stream) + } else if m.Progress != "" { + fmt.Fprintf(streamOptions.stdout, "%s %s\r", m.Status, m.Progress) + } else if m.Error != "" { + return errors.New(m.Error) + } + if m.Status != "" { + fmt.Fprintln(streamOptions.stdout, m.Status) + } + } + } else { + if streamOptions.setRawTerminal { + _, err = io.Copy(streamOptions.stdout, resp.Body) + } else { + _, err = stdcopy.StdCopy(streamOptions.stdout, streamOptions.stderr, resp.Body) + } + return err + } + return nil +} + +type hijackOptions struct { + success chan struct{} + setRawTerminal bool + in io.Reader + stdout io.Writer + stderr io.Writer + data interface{} +} + +func (c *Client) hijack(method, path string, hijackOptions hijackOptions) error { + if path != "/version" && !c.SkipServerVersionCheck && c.expectedAPIVersion == nil { + err := c.checkAPIVersion() + if err != nil { + return err + } + } + var params io.Reader + if hijackOptions.data != nil { + buf, err := json.Marshal(hijackOptions.data) + if err != nil { + return err + } + params = bytes.NewBuffer(buf) + } + if hijackOptions.stdout == nil { + hijackOptions.stdout = ioutil.Discard + } + if hijackOptions.stderr == nil { + hijackOptions.stderr = ioutil.Discard + } + req, err := http.NewRequest(method, c.getURL(path), params) + if err != nil { + return err + } + req.Header.Set("Content-Type", "plain/text") + req.Header.Set("Connection", "Upgrade") + req.Header.Set("Upgrade", "tcp") + protocol := c.endpointURL.Scheme + address := c.endpointURL.Path + if protocol != "unix" { + protocol = "tcp" + address = c.endpointURL.Host + } + var dial net.Conn + if c.TLSConfig != nil && protocol != "unix" { + dial, err = tlsDialWithDialer(c.Dialer, protocol, address, c.TLSConfig) + if err != nil { + return err + } + } else { + dial, err = c.Dialer.Dial(protocol, address) + if err != nil { + return err + } + } + clientconn := httputil.NewClientConn(dial, nil) + defer clientconn.Close() + clientconn.Do(req) + if hijackOptions.success != nil { + hijackOptions.success <- struct{}{} + <-hijackOptions.success + } + rwc, br := clientconn.Hijack() + defer rwc.Close() + errChanOut := make(chan error, 1) + errChanIn := make(chan error, 1) + go func() { + defer func() { + if hijackOptions.in != nil { + if closer, ok := hijackOptions.in.(io.Closer); ok { + errChanIn <- nil + closer.Close() + } + } + }() + var err error + if hijackOptions.setRawTerminal { + _, err = io.Copy(hijackOptions.stdout, br) + } else { + _, err = stdcopy.StdCopy(hijackOptions.stdout, hijackOptions.stderr, br) + } + errChanOut <- err + }() + go func() { + var err error + if hijackOptions.in != nil { + _, err = io.Copy(rwc, hijackOptions.in) + } + errChanIn <- err + rwc.(interface { + CloseWrite() error + }).CloseWrite() + }() + errIn := <-errChanIn + errOut := <-errChanOut + if errIn != nil { + return errIn + } + return errOut +} + +func (c *Client) getURL(path string) string { + urlStr := strings.TrimRight(c.endpointURL.String(), "/") + if c.endpointURL.Scheme == "unix" { + urlStr = "" + } + if c.requestedAPIVersion != nil { + return fmt.Sprintf("%s/v%s%s", urlStr, c.requestedAPIVersion, path) + } + return fmt.Sprintf("%s%s", urlStr, path) +} + +// getFakeUnixURL returns the URL needed to make an HTTP request over a UNIX +// domain socket to the given path. +func (c *Client) getFakeUnixURL(path string) string { + u := *c.endpointURL // Copy. + + // Override URL so that net/http will not complain. + u.Scheme = "http" + u.Host = "unix.sock" // Doesn't matter what this is - it's not used. + u.Path = "" + urlStr := strings.TrimRight(u.String(), "/") + if c.requestedAPIVersion != nil { + return fmt.Sprintf("%s/v%s%s", urlStr, c.requestedAPIVersion, path) + } + return fmt.Sprintf("%s%s", urlStr, path) +} + +func (c *Client) unixClient() *http.Client { + if c.unixHTTPClient != nil { + return c.unixHTTPClient + } + socketPath := c.endpointURL.Path + c.unixHTTPClient = &http.Client{ + Transport: &http.Transport{ + Dial: func(network, addr string) (net.Conn, error) { + return c.Dialer.Dial("unix", socketPath) + }, + }, + } + return c.unixHTTPClient +} + +type jsonMessage struct { + Status string `json:"status,omitempty"` + Progress string `json:"progress,omitempty"` + Error string `json:"error,omitempty"` + Stream string `json:"stream,omitempty"` +} + +func queryString(opts interface{}) string { + if opts == nil { + return "" + } + value := reflect.ValueOf(opts) + if value.Kind() == reflect.Ptr { + value = value.Elem() + } + if value.Kind() != reflect.Struct { + return "" + } + items := url.Values(map[string][]string{}) + for i := 0; i < value.NumField(); i++ { + field := value.Type().Field(i) + if field.PkgPath != "" { + continue + } + key := field.Tag.Get("qs") + if key == "" { + key = strings.ToLower(field.Name) + } else if key == "-" { + continue + } + addQueryStringValue(items, key, value.Field(i)) + } + return items.Encode() +} + +func addQueryStringValue(items url.Values, key string, v reflect.Value) { + switch v.Kind() { + case reflect.Bool: + if v.Bool() { + items.Add(key, "1") + } + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + if v.Int() > 0 { + items.Add(key, strconv.FormatInt(v.Int(), 10)) + } + case reflect.Float32, reflect.Float64: + if v.Float() > 0 { + items.Add(key, strconv.FormatFloat(v.Float(), 'f', -1, 64)) + } + case reflect.String: + if v.String() != "" { + items.Add(key, v.String()) + } + case reflect.Ptr: + if !v.IsNil() { + if b, err := json.Marshal(v.Interface()); err == nil { + items.Add(key, string(b)) + } + } + case reflect.Map: + if len(v.MapKeys()) > 0 { + if b, err := json.Marshal(v.Interface()); err == nil { + items.Add(key, string(b)) + } + } + case reflect.Array, reflect.Slice: + vLen := v.Len() + if vLen > 0 { + for i := 0; i < vLen; i++ { + addQueryStringValue(items, key, v.Index(i)) + } + } + } +} + +// Error represents failures in the API. It represents a failure from the API. +type Error struct { + Status int + Message string +} + +func newError(resp *http.Response) *Error { + defer resp.Body.Close() + data, err := ioutil.ReadAll(resp.Body) + if err != nil { + return &Error{Status: resp.StatusCode, Message: fmt.Sprintf("cannot read body, err: %v", err)} + } + return &Error{Status: resp.StatusCode, Message: string(data)} +} + +func (e *Error) Error() string { + return fmt.Sprintf("API error (%d): %s", e.Status, e.Message) +} + +func parseEndpoint(endpoint string, tls bool) (*url.URL, error) { + u, err := url.Parse(endpoint) + if err != nil { + return nil, ErrInvalidEndpoint + } + if tls { + u.Scheme = "https" + } + switch u.Scheme { + case "unix": + return u, nil + case "http", "https", "tcp": + _, port, err := net.SplitHostPort(u.Host) + if err != nil { + if e, ok := err.(*net.AddrError); ok { + if e.Err == "missing port in address" { + return u, nil + } + } + return nil, ErrInvalidEndpoint + } + number, err := strconv.ParseInt(port, 10, 64) + if err == nil && number > 0 && number < 65536 { + if u.Scheme == "tcp" { + if tls { + u.Scheme = "https" + } else { + u.Scheme = "http" + } + } + return u, nil + } + return nil, ErrInvalidEndpoint + default: + return nil, ErrInvalidEndpoint + } +} + +type dockerEnv struct { + dockerHost string + dockerTLSVerify bool + dockerCertPath string +} + +func getDockerEnv() (*dockerEnv, error) { + dockerHost := os.Getenv("DOCKER_HOST") + var err error + if dockerHost == "" { + dockerHost, err = DefaultDockerHost() + if err != nil { + return nil, err + } + } + dockerTLSVerify := os.Getenv("DOCKER_TLS_VERIFY") != "" + var dockerCertPath string + if dockerTLSVerify { + dockerCertPath = os.Getenv("DOCKER_CERT_PATH") + if dockerCertPath == "" { + home := homedir.Get() + if home == "" { + return nil, errors.New("environment variable HOME must be set if DOCKER_CERT_PATH is not set") + } + dockerCertPath = filepath.Join(home, ".docker") + dockerCertPath, err = filepath.Abs(dockerCertPath) + if err != nil { + return nil, err + } + } + } + return &dockerEnv{ + dockerHost: dockerHost, + dockerTLSVerify: dockerTLSVerify, + dockerCertPath: dockerCertPath, + }, nil +} + +// DefaultDockerHost returns the default docker socket for the current OS +func DefaultDockerHost() (string, error) { + var defaultHost string + if runtime.GOOS == "windows" { + // If we do not have a host, default to TCP socket on Windows + defaultHost = fmt.Sprintf("tcp://%s:%d", opts.DefaultHTTPHost, opts.DefaultHTTPPort) + } else { + // If we do not have a host, default to unix socket + defaultHost = fmt.Sprintf("unix://%s", opts.DefaultUnixSocket) + } + return opts.ValidateHost(defaultHost) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/container.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/container.go new file mode 100644 index 0000000..faf1263 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/container.go @@ -0,0 +1,1141 @@ +// Copyright 2015 go-dockerclient authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package docker + +import ( + "encoding/json" + "errors" + "fmt" + "io" + "net/http" + "net/url" + "strconv" + "strings" + "time" +) + +// ErrContainerAlreadyExists is the error returned by CreateContainer when the +// container already exists. +var ErrContainerAlreadyExists = errors.New("container already exists") + +// ListContainersOptions specify parameters to the ListContainers function. +// +// See https://goo.gl/47a6tO for more details. +type ListContainersOptions struct { + All bool + Size bool + Limit int + Since string + Before string + Filters map[string][]string +} + +// APIPort is a type that represents a port mapping returned by the Docker API +type APIPort struct { + PrivatePort int64 `json:"PrivatePort,omitempty" yaml:"PrivatePort,omitempty"` + PublicPort int64 `json:"PublicPort,omitempty" yaml:"PublicPort,omitempty"` + Type string `json:"Type,omitempty" yaml:"Type,omitempty"` + IP string `json:"IP,omitempty" yaml:"IP,omitempty"` +} + +// APIContainers represents each container in the list returned by +// ListContainers. +type APIContainers struct { + ID string `json:"Id" yaml:"Id"` + Image string `json:"Image,omitempty" yaml:"Image,omitempty"` + Command string `json:"Command,omitempty" yaml:"Command,omitempty"` + Created int64 `json:"Created,omitempty" yaml:"Created,omitempty"` + Status string `json:"Status,omitempty" yaml:"Status,omitempty"` + Ports []APIPort `json:"Ports,omitempty" yaml:"Ports,omitempty"` + SizeRw int64 `json:"SizeRw,omitempty" yaml:"SizeRw,omitempty"` + SizeRootFs int64 `json:"SizeRootFs,omitempty" yaml:"SizeRootFs,omitempty"` + Names []string `json:"Names,omitempty" yaml:"Names,omitempty"` + Labels map[string]string `json:"Labels,omitempty" yaml:"Labels, omitempty"` +} + +// ListContainers returns a slice of containers matching the given criteria. +// +// See https://goo.gl/47a6tO for more details. +func (c *Client) ListContainers(opts ListContainersOptions) ([]APIContainers, error) { + path := "/containers/json?" + queryString(opts) + resp, err := c.do("GET", path, doOptions{}) + if err != nil { + return nil, err + } + defer resp.Body.Close() + var containers []APIContainers + if err := json.NewDecoder(resp.Body).Decode(&containers); err != nil { + return nil, err + } + return containers, nil +} + +// Port represents the port number and the protocol, in the form +// /. For example: 80/tcp. +type Port string + +// Port returns the number of the port. +func (p Port) Port() string { + return strings.Split(string(p), "/")[0] +} + +// Proto returns the name of the protocol. +func (p Port) Proto() string { + parts := strings.Split(string(p), "/") + if len(parts) == 1 { + return "tcp" + } + return parts[1] +} + +// State represents the state of a container. +type State struct { + Running bool `json:"Running,omitempty" yaml:"Running,omitempty"` + Paused bool `json:"Paused,omitempty" yaml:"Paused,omitempty"` + Restarting bool `json:"Restarting,omitempty" yaml:"Restarting,omitempty"` + OOMKilled bool `json:"OOMKilled,omitempty" yaml:"OOMKilled,omitempty"` + Pid int `json:"Pid,omitempty" yaml:"Pid,omitempty"` + ExitCode int `json:"ExitCode,omitempty" yaml:"ExitCode,omitempty"` + Error string `json:"Error,omitempty" yaml:"Error,omitempty"` + StartedAt time.Time `json:"StartedAt,omitempty" yaml:"StartedAt,omitempty"` + FinishedAt time.Time `json:"FinishedAt,omitempty" yaml:"FinishedAt,omitempty"` +} + +// String returns the string representation of a state. +func (s *State) String() string { + if s.Running { + if s.Paused { + return "paused" + } + return fmt.Sprintf("Up %s", time.Now().UTC().Sub(s.StartedAt)) + } + return fmt.Sprintf("Exit %d", s.ExitCode) +} + +// PortBinding represents the host/container port mapping as returned in the +// `docker inspect` json +type PortBinding struct { + HostIP string `json:"HostIP,omitempty" yaml:"HostIP,omitempty"` + HostPort string `json:"HostPort,omitempty" yaml:"HostPort,omitempty"` +} + +// PortMapping represents a deprecated field in the `docker inspect` output, +// and its value as found in NetworkSettings should always be nil +type PortMapping map[string]string + +// NetworkSettings contains network-related information about a container +type NetworkSettings struct { + IPAddress string `json:"IPAddress,omitempty" yaml:"IPAddress,omitempty"` + IPPrefixLen int `json:"IPPrefixLen,omitempty" yaml:"IPPrefixLen,omitempty"` + MacAddress string `json:"MacAddress,omitempty" yaml:"MacAddress,omitempty"` + Gateway string `json:"Gateway,omitempty" yaml:"Gateway,omitempty"` + Bridge string `json:"Bridge,omitempty" yaml:"Bridge,omitempty"` + PortMapping map[string]PortMapping `json:"PortMapping,omitempty" yaml:"PortMapping,omitempty"` + Ports map[Port][]PortBinding `json:"Ports,omitempty" yaml:"Ports,omitempty"` + NetworkID string `json:"NetworkID,omitempty" yaml:"NetworkID,omitempty"` + EndpointID string `json:"EndpointID,omitempty" yaml:"EndpointID,omitempty"` + SandboxKey string `json:"SandboxKey,omitempty" yaml:"SandboxKey,omitempty"` + GlobalIPv6Address string `json:"GlobalIPv6Address,omitempty" yaml:"GlobalIPv6Address,omitempty"` + GlobalIPv6PrefixLen int `json:"GlobalIPv6PrefixLen,omitempty" yaml:"GlobalIPv6PrefixLen,omitempty"` + IPv6Gateway string `json:"IPv6Gateway,omitempty" yaml:"IPv6Gateway,omitempty"` + LinkLocalIPv6Address string `json:"LinkLocalIPv6Address,omitempty" yaml:"LinkLocalIPv6Address,omitempty"` + LinkLocalIPv6PrefixLen int `json:"LinkLocalIPv6PrefixLen,omitempty" yaml:"LinkLocalIPv6PrefixLen,omitempty"` + SecondaryIPAddresses []string `json:"SecondaryIPAddresses,omitempty" yaml:"SecondaryIPAddresses,omitempty"` + SecondaryIPv6Addresses []string `json:"SecondaryIPv6Addresses,omitempty" yaml:"SecondaryIPv6Addresses,omitempty"` +} + +// PortMappingAPI translates the port mappings as contained in NetworkSettings +// into the format in which they would appear when returned by the API +func (settings *NetworkSettings) PortMappingAPI() []APIPort { + var mapping []APIPort + for port, bindings := range settings.Ports { + p, _ := parsePort(port.Port()) + if len(bindings) == 0 { + mapping = append(mapping, APIPort{ + PublicPort: int64(p), + Type: port.Proto(), + }) + continue + } + for _, binding := range bindings { + p, _ := parsePort(port.Port()) + h, _ := parsePort(binding.HostPort) + mapping = append(mapping, APIPort{ + PrivatePort: int64(p), + PublicPort: int64(h), + Type: port.Proto(), + IP: binding.HostIP, + }) + } + } + return mapping +} + +func parsePort(rawPort string) (int, error) { + port, err := strconv.ParseUint(rawPort, 10, 16) + if err != nil { + return 0, err + } + return int(port), nil +} + +// Config is the list of configuration options used when creating a container. +// Config does not contain the options that are specific to starting a container on a +// given host. Those are contained in HostConfig +type Config struct { + Hostname string `json:"Hostname,omitempty" yaml:"Hostname,omitempty"` + Domainname string `json:"Domainname,omitempty" yaml:"Domainname,omitempty"` + User string `json:"User,omitempty" yaml:"User,omitempty"` + Memory int64 `json:"Memory,omitempty" yaml:"Memory,omitempty"` + MemorySwap int64 `json:"MemorySwap,omitempty" yaml:"MemorySwap,omitempty"` + CPUShares int64 `json:"CpuShares,omitempty" yaml:"CpuShares,omitempty"` + CPUSet string `json:"Cpuset,omitempty" yaml:"Cpuset,omitempty"` + AttachStdin bool `json:"AttachStdin,omitempty" yaml:"AttachStdin,omitempty"` + AttachStdout bool `json:"AttachStdout,omitempty" yaml:"AttachStdout,omitempty"` + AttachStderr bool `json:"AttachStderr,omitempty" yaml:"AttachStderr,omitempty"` + PortSpecs []string `json:"PortSpecs,omitempty" yaml:"PortSpecs,omitempty"` + ExposedPorts map[Port]struct{} `json:"ExposedPorts,omitempty" yaml:"ExposedPorts,omitempty"` + Tty bool `json:"Tty,omitempty" yaml:"Tty,omitempty"` + OpenStdin bool `json:"OpenStdin,omitempty" yaml:"OpenStdin,omitempty"` + StdinOnce bool `json:"StdinOnce,omitempty" yaml:"StdinOnce,omitempty"` + Env []string `json:"Env,omitempty" yaml:"Env,omitempty"` + Cmd []string `json:"Cmd" yaml:"Cmd"` + DNS []string `json:"Dns,omitempty" yaml:"Dns,omitempty"` // For Docker API v1.9 and below only + Image string `json:"Image,omitempty" yaml:"Image,omitempty"` + Volumes map[string]struct{} `json:"Volumes,omitempty" yaml:"Volumes,omitempty"` + VolumeDriver string `json:"VolumeDriver,omitempty" yaml:"VolumeDriver,omitempty"` + VolumesFrom string `json:"VolumesFrom,omitempty" yaml:"VolumesFrom,omitempty"` + WorkingDir string `json:"WorkingDir,omitempty" yaml:"WorkingDir,omitempty"` + MacAddress string `json:"MacAddress,omitempty" yaml:"MacAddress,omitempty"` + Entrypoint []string `json:"Entrypoint" yaml:"Entrypoint"` + NetworkDisabled bool `json:"NetworkDisabled,omitempty" yaml:"NetworkDisabled,omitempty"` + SecurityOpts []string `json:"SecurityOpts,omitempty" yaml:"SecurityOpts,omitempty"` + OnBuild []string `json:"OnBuild,omitempty" yaml:"OnBuild,omitempty"` + Mounts []Mount `json:"Mounts,omitempty" yaml:"Mounts,omitempty"` + Labels map[string]string `json:"Labels,omitempty" yaml:"Labels,omitempty"` +} + +// Mount represents a mount point in the container. +// +// It has been added in the version 1.20 of the Docker API, available since +// Docker 1.8. +type Mount struct { + Source string + Destination string + Mode string + RW bool +} + +// LogConfig defines the log driver type and the configuration for it. +type LogConfig struct { + Type string `json:"Type,omitempty" yaml:"Type,omitempty"` + Config map[string]string `json:"Config,omitempty" yaml:"Config,omitempty"` +} + +// ULimit defines system-wide resource limitations +// This can help a lot in system administration, e.g. when a user starts too many processes and therefore makes the system unresponsive for other users. +type ULimit struct { + Name string `json:"Name,omitempty" yaml:"Name,omitempty"` + Soft int64 `json:"Soft,omitempty" yaml:"Soft,omitempty"` + Hard int64 `json:"Hard,omitempty" yaml:"Hard,omitempty"` +} + +// SwarmNode containers information about which Swarm node the container is on +type SwarmNode struct { + ID string `json:"ID,omitempty" yaml:"ID,omitempty"` + IP string `json:"IP,omitempty" yaml:"IP,omitempty"` + Addr string `json:"Addr,omitempty" yaml:"Addr,omitempty"` + Name string `json:"Name,omitempty" yaml:"Name,omitempty"` + CPUs int64 `json:"CPUs,omitempty" yaml:"CPUs,omitempty"` + Memory int64 `json:"Memory,omitempty" yaml:"Memory,omitempty"` + Labels map[string]string `json:"Labels,omitempty" yaml:"Labels,omitempty"` +} + +// Container is the type encompasing everything about a container - its config, +// hostconfig, etc. +type Container struct { + ID string `json:"Id" yaml:"Id"` + + Created time.Time `json:"Created,omitempty" yaml:"Created,omitempty"` + + Path string `json:"Path,omitempty" yaml:"Path,omitempty"` + Args []string `json:"Args,omitempty" yaml:"Args,omitempty"` + + Config *Config `json:"Config,omitempty" yaml:"Config,omitempty"` + State State `json:"State,omitempty" yaml:"State,omitempty"` + Image string `json:"Image,omitempty" yaml:"Image,omitempty"` + + Node *SwarmNode `json:"Node,omitempty" yaml:"Node,omitempty"` + + NetworkSettings *NetworkSettings `json:"NetworkSettings,omitempty" yaml:"NetworkSettings,omitempty"` + + SysInitPath string `json:"SysInitPath,omitempty" yaml:"SysInitPath,omitempty"` + ResolvConfPath string `json:"ResolvConfPath,omitempty" yaml:"ResolvConfPath,omitempty"` + HostnamePath string `json:"HostnamePath,omitempty" yaml:"HostnamePath,omitempty"` + HostsPath string `json:"HostsPath,omitempty" yaml:"HostsPath,omitempty"` + LogPath string `json:"LogPath,omitempty" yaml:"LogPath,omitempty"` + Name string `json:"Name,omitempty" yaml:"Name,omitempty"` + Driver string `json:"Driver,omitempty" yaml:"Driver,omitempty"` + Mounts []Mount `json:"Mounts,omitempty" yaml:"Mounts,omitempty"` + + Volumes map[string]string `json:"Volumes,omitempty" yaml:"Volumes,omitempty"` + VolumesRW map[string]bool `json:"VolumesRW,omitempty" yaml:"VolumesRW,omitempty"` + HostConfig *HostConfig `json:"HostConfig,omitempty" yaml:"HostConfig,omitempty"` + ExecIDs []string `json:"ExecIDs,omitempty" yaml:"ExecIDs,omitempty"` + + RestartCount int `json:"RestartCount,omitempty" yaml:"RestartCount,omitempty"` + + AppArmorProfile string `json:"AppArmorProfile,omitempty" yaml:"AppArmorProfile,omitempty"` +} + +// RenameContainerOptions specify parameters to the RenameContainer function. +// +// See https://goo.gl/laSOIy for more details. +type RenameContainerOptions struct { + // ID of container to rename + ID string `qs:"-"` + + // New name + Name string `json:"name,omitempty" yaml:"name,omitempty"` +} + +// RenameContainer updates and existing containers name +// +// See https://goo.gl/laSOIy for more details. +func (c *Client) RenameContainer(opts RenameContainerOptions) error { + resp, err := c.do("POST", fmt.Sprintf("/containers/"+opts.ID+"/rename?%s", queryString(opts)), doOptions{}) + if err != nil { + return err + } + resp.Body.Close() + return nil +} + +// InspectContainer returns information about a container by its ID. +// +// See https://goo.gl/RdIq0b for more details. +func (c *Client) InspectContainer(id string) (*Container, error) { + path := "/containers/" + id + "/json" + resp, err := c.do("GET", path, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return nil, &NoSuchContainer{ID: id} + } + return nil, err + } + defer resp.Body.Close() + var container Container + if err := json.NewDecoder(resp.Body).Decode(&container); err != nil { + return nil, err + } + return &container, nil +} + +// ContainerChanges returns changes in the filesystem of the given container. +// +// See https://goo.gl/9GsTIF for more details. +func (c *Client) ContainerChanges(id string) ([]Change, error) { + path := "/containers/" + id + "/changes" + resp, err := c.do("GET", path, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return nil, &NoSuchContainer{ID: id} + } + return nil, err + } + defer resp.Body.Close() + var changes []Change + if err := json.NewDecoder(resp.Body).Decode(&changes); err != nil { + return nil, err + } + return changes, nil +} + +// CreateContainerOptions specify parameters to the CreateContainer function. +// +// See https://goo.gl/WxQzrr for more details. +type CreateContainerOptions struct { + Name string + Config *Config `qs:"-"` + HostConfig *HostConfig `qs:"-"` +} + +// CreateContainer creates a new container, returning the container instance, +// or an error in case of failure. +// +// See https://goo.gl/WxQzrr for more details. +func (c *Client) CreateContainer(opts CreateContainerOptions) (*Container, error) { + path := "/containers/create?" + queryString(opts) + resp, err := c.do( + "POST", + path, + doOptions{ + data: struct { + *Config + HostConfig *HostConfig `json:"HostConfig,omitempty" yaml:"HostConfig,omitempty"` + }{ + opts.Config, + opts.HostConfig, + }, + }, + ) + + if e, ok := err.(*Error); ok { + if e.Status == http.StatusNotFound { + return nil, ErrNoSuchImage + } + if e.Status == http.StatusConflict { + return nil, ErrContainerAlreadyExists + } + } + + if err != nil { + return nil, err + } + defer resp.Body.Close() + var container Container + if err := json.NewDecoder(resp.Body).Decode(&container); err != nil { + return nil, err + } + + container.Name = opts.Name + + return &container, nil +} + +// KeyValuePair is a type for generic key/value pairs as used in the Lxc +// configuration +type KeyValuePair struct { + Key string `json:"Key,omitempty" yaml:"Key,omitempty"` + Value string `json:"Value,omitempty" yaml:"Value,omitempty"` +} + +// RestartPolicy represents the policy for automatically restarting a container. +// +// Possible values are: +// +// - always: the docker daemon will always restart the container +// - on-failure: the docker daemon will restart the container on failures, at +// most MaximumRetryCount times +// - no: the docker daemon will not restart the container automatically +type RestartPolicy struct { + Name string `json:"Name,omitempty" yaml:"Name,omitempty"` + MaximumRetryCount int `json:"MaximumRetryCount,omitempty" yaml:"MaximumRetryCount,omitempty"` +} + +// AlwaysRestart returns a restart policy that tells the Docker daemon to +// always restart the container. +func AlwaysRestart() RestartPolicy { + return RestartPolicy{Name: "always"} +} + +// RestartOnFailure returns a restart policy that tells the Docker daemon to +// restart the container on failures, trying at most maxRetry times. +func RestartOnFailure(maxRetry int) RestartPolicy { + return RestartPolicy{Name: "on-failure", MaximumRetryCount: maxRetry} +} + +// NeverRestart returns a restart policy that tells the Docker daemon to never +// restart the container on failures. +func NeverRestart() RestartPolicy { + return RestartPolicy{Name: "no"} +} + +// Device represents a device mapping between the Docker host and the +// container. +type Device struct { + PathOnHost string `json:"PathOnHost,omitempty" yaml:"PathOnHost,omitempty"` + PathInContainer string `json:"PathInContainer,omitempty" yaml:"PathInContainer,omitempty"` + CgroupPermissions string `json:"CgroupPermissions,omitempty" yaml:"CgroupPermissions,omitempty"` +} + +// HostConfig contains the container options related to starting a container on +// a given host +type HostConfig struct { + Binds []string `json:"Binds,omitempty" yaml:"Binds,omitempty"` + CapAdd []string `json:"CapAdd,omitempty" yaml:"CapAdd,omitempty"` + CapDrop []string `json:"CapDrop,omitempty" yaml:"CapDrop,omitempty"` + GroupAdd []string `json:"GroupAdd,omitempty" yaml:"GroupAdd,omitempty"` + ContainerIDFile string `json:"ContainerIDFile,omitempty" yaml:"ContainerIDFile,omitempty"` + LxcConf []KeyValuePair `json:"LxcConf,omitempty" yaml:"LxcConf,omitempty"` + Privileged bool `json:"Privileged,omitempty" yaml:"Privileged,omitempty"` + PortBindings map[Port][]PortBinding `json:"PortBindings,omitempty" yaml:"PortBindings,omitempty"` + Links []string `json:"Links,omitempty" yaml:"Links,omitempty"` + PublishAllPorts bool `json:"PublishAllPorts,omitempty" yaml:"PublishAllPorts,omitempty"` + DNS []string `json:"Dns,omitempty" yaml:"Dns,omitempty"` // For Docker API v1.10 and above only + DNSSearch []string `json:"DnsSearch,omitempty" yaml:"DnsSearch,omitempty"` + ExtraHosts []string `json:"ExtraHosts,omitempty" yaml:"ExtraHosts,omitempty"` + VolumesFrom []string `json:"VolumesFrom,omitempty" yaml:"VolumesFrom,omitempty"` + NetworkMode string `json:"NetworkMode,omitempty" yaml:"NetworkMode,omitempty"` + IpcMode string `json:"IpcMode,omitempty" yaml:"IpcMode,omitempty"` + PidMode string `json:"PidMode,omitempty" yaml:"PidMode,omitempty"` + UTSMode string `json:"UTSMode,omitempty" yaml:"UTSMode,omitempty"` + RestartPolicy RestartPolicy `json:"RestartPolicy,omitempty" yaml:"RestartPolicy,omitempty"` + Devices []Device `json:"Devices,omitempty" yaml:"Devices,omitempty"` + LogConfig LogConfig `json:"LogConfig,omitempty" yaml:"LogConfig,omitempty"` + ReadonlyRootfs bool `json:"ReadonlyRootfs,omitempty" yaml:"ReadonlyRootfs,omitempty"` + SecurityOpt []string `json:"SecurityOpt,omitempty" yaml:"SecurityOpt,omitempty"` + CgroupParent string `json:"CgroupParent,omitempty" yaml:"CgroupParent,omitempty"` + Memory int64 `json:"Memory,omitempty" yaml:"Memory,omitempty"` + MemorySwap int64 `json:"MemorySwap,omitempty" yaml:"MemorySwap,omitempty"` + MemorySwappiness int64 `json:"MemorySwappiness,omitempty" yaml:"MemorySwappiness,omitempty"` + OOMKillDisable bool `json:"OomKillDisable,omitempty" yaml:"OomKillDisable"` + CPUShares int64 `json:"CpuShares,omitempty" yaml:"CpuShares,omitempty"` + CPUSet string `json:"Cpuset,omitempty" yaml:"Cpuset,omitempty"` + CPUSetCPUs string `json:"CpusetCpus,omitempty" yaml:"CpusetCpus,omitempty"` + CPUSetMEMs string `json:"CpusetMems,omitempty" yaml:"CpusetMems,omitempty"` + CPUQuota int64 `json:"CpuQuota,omitempty" yaml:"CpuQuota,omitempty"` + CPUPeriod int64 `json:"CpuPeriod,omitempty" yaml:"CpuPeriod,omitempty"` + BlkioWeight int64 `json:"BlkioWeight,omitempty" yaml:"BlkioWeight"` + Ulimits []ULimit `json:"Ulimits,omitempty" yaml:"Ulimits,omitempty"` +} + +// StartContainer starts a container, returning an error in case of failure. +// +// See https://goo.gl/MrBAJv for more details. +func (c *Client) StartContainer(id string, hostConfig *HostConfig) error { + path := "/containers/" + id + "/start" + resp, err := c.do("POST", path, doOptions{data: hostConfig, forceJSON: true}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return &NoSuchContainer{ID: id, Err: err} + } + return err + } + if resp.StatusCode == http.StatusNotModified { + return &ContainerAlreadyRunning{ID: id} + } + resp.Body.Close() + return nil +} + +// StopContainer stops a container, killing it after the given timeout (in +// seconds). +// +// See https://goo.gl/USqsFt for more details. +func (c *Client) StopContainer(id string, timeout uint) error { + path := fmt.Sprintf("/containers/%s/stop?t=%d", id, timeout) + resp, err := c.do("POST", path, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return &NoSuchContainer{ID: id} + } + return err + } + if resp.StatusCode == http.StatusNotModified { + return &ContainerNotRunning{ID: id} + } + resp.Body.Close() + return nil +} + +// RestartContainer stops a container, killing it after the given timeout (in +// seconds), during the stop process. +// +// See https://goo.gl/QzsDnz for more details. +func (c *Client) RestartContainer(id string, timeout uint) error { + path := fmt.Sprintf("/containers/%s/restart?t=%d", id, timeout) + resp, err := c.do("POST", path, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return &NoSuchContainer{ID: id} + } + return err + } + resp.Body.Close() + return nil +} + +// PauseContainer pauses the given container. +// +// See https://goo.gl/OF7W9X for more details. +func (c *Client) PauseContainer(id string) error { + path := fmt.Sprintf("/containers/%s/pause", id) + resp, err := c.do("POST", path, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return &NoSuchContainer{ID: id} + } + return err + } + resp.Body.Close() + return nil +} + +// UnpauseContainer unpauses the given container. +// +// See https://goo.gl/7dwyPA for more details. +func (c *Client) UnpauseContainer(id string) error { + path := fmt.Sprintf("/containers/%s/unpause", id) + resp, err := c.do("POST", path, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return &NoSuchContainer{ID: id} + } + return err + } + resp.Body.Close() + return nil +} + +// TopResult represents the list of processes running in a container, as +// returned by /containers//top. +// +// See https://goo.gl/Rb46aY for more details. +type TopResult struct { + Titles []string + Processes [][]string +} + +// TopContainer returns processes running inside a container +// +// See https://goo.gl/Rb46aY for more details. +func (c *Client) TopContainer(id string, psArgs string) (TopResult, error) { + var args string + var result TopResult + if psArgs != "" { + args = fmt.Sprintf("?ps_args=%s", psArgs) + } + path := fmt.Sprintf("/containers/%s/top%s", id, args) + resp, err := c.do("GET", path, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return result, &NoSuchContainer{ID: id} + } + return result, err + } + defer resp.Body.Close() + if err := json.NewDecoder(resp.Body).Decode(&result); err != nil { + return result, err + } + return result, nil +} + +// Stats represents container statistics, returned by /containers//stats. +// +// See https://goo.gl/GNmLHb for more details. +type Stats struct { + Read time.Time `json:"read,omitempty" yaml:"read,omitempty"` + Network struct { + RxDropped uint64 `json:"rx_dropped,omitempty" yaml:"rx_dropped,omitempty"` + RxBytes uint64 `json:"rx_bytes,omitempty" yaml:"rx_bytes,omitempty"` + RxErrors uint64 `json:"rx_errors,omitempty" yaml:"rx_errors,omitempty"` + TxPackets uint64 `json:"tx_packets,omitempty" yaml:"tx_packets,omitempty"` + TxDropped uint64 `json:"tx_dropped,omitempty" yaml:"tx_dropped,omitempty"` + RxPackets uint64 `json:"rx_packets,omitempty" yaml:"rx_packets,omitempty"` + TxErrors uint64 `json:"tx_errors,omitempty" yaml:"tx_errors,omitempty"` + TxBytes uint64 `json:"tx_bytes,omitempty" yaml:"tx_bytes,omitempty"` + } `json:"network,omitempty" yaml:"network,omitempty"` + MemoryStats struct { + Stats struct { + TotalPgmafault uint64 `json:"total_pgmafault,omitempty" yaml:"total_pgmafault,omitempty"` + Cache uint64 `json:"cache,omitempty" yaml:"cache,omitempty"` + MappedFile uint64 `json:"mapped_file,omitempty" yaml:"mapped_file,omitempty"` + TotalInactiveFile uint64 `json:"total_inactive_file,omitempty" yaml:"total_inactive_file,omitempty"` + Pgpgout uint64 `json:"pgpgout,omitempty" yaml:"pgpgout,omitempty"` + Rss uint64 `json:"rss,omitempty" yaml:"rss,omitempty"` + TotalMappedFile uint64 `json:"total_mapped_file,omitempty" yaml:"total_mapped_file,omitempty"` + Writeback uint64 `json:"writeback,omitempty" yaml:"writeback,omitempty"` + Unevictable uint64 `json:"unevictable,omitempty" yaml:"unevictable,omitempty"` + Pgpgin uint64 `json:"pgpgin,omitempty" yaml:"pgpgin,omitempty"` + TotalUnevictable uint64 `json:"total_unevictable,omitempty" yaml:"total_unevictable,omitempty"` + Pgmajfault uint64 `json:"pgmajfault,omitempty" yaml:"pgmajfault,omitempty"` + TotalRss uint64 `json:"total_rss,omitempty" yaml:"total_rss,omitempty"` + TotalRssHuge uint64 `json:"total_rss_huge,omitempty" yaml:"total_rss_huge,omitempty"` + TotalWriteback uint64 `json:"total_writeback,omitempty" yaml:"total_writeback,omitempty"` + TotalInactiveAnon uint64 `json:"total_inactive_anon,omitempty" yaml:"total_inactive_anon,omitempty"` + RssHuge uint64 `json:"rss_huge,omitempty" yaml:"rss_huge,omitempty"` + HierarchicalMemoryLimit uint64 `json:"hierarchical_memory_limit,omitempty" yaml:"hierarchical_memory_limit,omitempty"` + TotalPgfault uint64 `json:"total_pgfault,omitempty" yaml:"total_pgfault,omitempty"` + TotalActiveFile uint64 `json:"total_active_file,omitempty" yaml:"total_active_file,omitempty"` + ActiveAnon uint64 `json:"active_anon,omitempty" yaml:"active_anon,omitempty"` + TotalActiveAnon uint64 `json:"total_active_anon,omitempty" yaml:"total_active_anon,omitempty"` + TotalPgpgout uint64 `json:"total_pgpgout,omitempty" yaml:"total_pgpgout,omitempty"` + TotalCache uint64 `json:"total_cache,omitempty" yaml:"total_cache,omitempty"` + InactiveAnon uint64 `json:"inactive_anon,omitempty" yaml:"inactive_anon,omitempty"` + ActiveFile uint64 `json:"active_file,omitempty" yaml:"active_file,omitempty"` + Pgfault uint64 `json:"pgfault,omitempty" yaml:"pgfault,omitempty"` + InactiveFile uint64 `json:"inactive_file,omitempty" yaml:"inactive_file,omitempty"` + TotalPgpgin uint64 `json:"total_pgpgin,omitempty" yaml:"total_pgpgin,omitempty"` + } `json:"stats,omitempty" yaml:"stats,omitempty"` + MaxUsage uint64 `json:"max_usage,omitempty" yaml:"max_usage,omitempty"` + Usage uint64 `json:"usage,omitempty" yaml:"usage,omitempty"` + Failcnt uint64 `json:"failcnt,omitempty" yaml:"failcnt,omitempty"` + Limit uint64 `json:"limit,omitempty" yaml:"limit,omitempty"` + } `json:"memory_stats,omitempty" yaml:"memory_stats,omitempty"` + BlkioStats struct { + IOServiceBytesRecursive []BlkioStatsEntry `json:"io_service_bytes_recursive,omitempty" yaml:"io_service_bytes_recursive,omitempty"` + IOServicedRecursive []BlkioStatsEntry `json:"io_serviced_recursive,omitempty" yaml:"io_serviced_recursive,omitempty"` + IOQueueRecursive []BlkioStatsEntry `json:"io_queue_recursive,omitempty" yaml:"io_queue_recursive,omitempty"` + IOServiceTimeRecursive []BlkioStatsEntry `json:"io_service_time_recursive,omitempty" yaml:"io_service_time_recursive,omitempty"` + IOWaitTimeRecursive []BlkioStatsEntry `json:"io_wait_time_recursive,omitempty" yaml:"io_wait_time_recursive,omitempty"` + IOMergedRecursive []BlkioStatsEntry `json:"io_merged_recursive,omitempty" yaml:"io_merged_recursive,omitempty"` + IOTimeRecursive []BlkioStatsEntry `json:"io_time_recursive,omitempty" yaml:"io_time_recursive,omitempty"` + SectorsRecursive []BlkioStatsEntry `json:"sectors_recursive,omitempty" yaml:"sectors_recursive,omitempty"` + } `json:"blkio_stats,omitempty" yaml:"blkio_stats,omitempty"` + CPUStats CPUStats `json:"cpu_stats,omitempty" yaml:"cpu_stats,omitempty"` + PreCPUStats CPUStats `json:"precpu_stats,omitempty"` +} + +// CPUStats is a stats entry for cpu stats +type CPUStats struct { + CPUUsage struct { + PercpuUsage []uint64 `json:"percpu_usage,omitempty" yaml:"percpu_usage,omitempty"` + UsageInUsermode uint64 `json:"usage_in_usermode,omitempty" yaml:"usage_in_usermode,omitempty"` + TotalUsage uint64 `json:"total_usage,omitempty" yaml:"total_usage,omitempty"` + UsageInKernelmode uint64 `json:"usage_in_kernelmode,omitempty" yaml:"usage_in_kernelmode,omitempty"` + } `json:"cpu_usage,omitempty" yaml:"cpu_usage,omitempty"` + SystemCPUUsage uint64 `json:"system_cpu_usage,omitempty" yaml:"system_cpu_usage,omitempty"` + ThrottlingData struct { + Periods uint64 `json:"periods,omitempty"` + ThrottledPeriods uint64 `json:"throttled_periods,omitempty"` + ThrottledTime uint64 `json:"throttled_time,omitempty"` + } `json:"throttling_data,omitempty" yaml:"throttling_data,omitempty"` +} + +// BlkioStatsEntry is a stats entry for blkio_stats +type BlkioStatsEntry struct { + Major uint64 `json:"major,omitempty" yaml:"major,omitempty"` + Minor uint64 `json:"minor,omitempty" yaml:"minor,omitempty"` + Op string `json:"op,omitempty" yaml:"op,omitempty"` + Value uint64 `json:"value,omitempty" yaml:"value,omitempty"` +} + +// StatsOptions specify parameters to the Stats function. +// +// See https://goo.gl/GNmLHb for more details. +type StatsOptions struct { + ID string + Stats chan<- *Stats + Stream bool + // A flag that enables stopping the stats operation + Done <-chan bool + // Initial connection timeout + Timeout time.Duration +} + +// Stats sends container statistics for the given container to the given channel. +// +// This function is blocking, similar to a streaming call for logs, and should be run +// on a separate goroutine from the caller. Note that this function will block until +// the given container is removed, not just exited. When finished, this function +// will close the given channel. Alternatively, function can be stopped by +// signaling on the Done channel. +// +// See https://goo.gl/GNmLHb for more details. +func (c *Client) Stats(opts StatsOptions) (retErr error) { + errC := make(chan error, 1) + readCloser, writeCloser := io.Pipe() + + defer func() { + close(opts.Stats) + + select { + case err := <-errC: + if err != nil && retErr == nil { + retErr = err + } + default: + // No errors + } + + if err := readCloser.Close(); err != nil && retErr == nil { + retErr = err + } + }() + + go func() { + err := c.stream("GET", fmt.Sprintf("/containers/%s/stats?stream=%v", opts.ID, opts.Stream), streamOptions{ + rawJSONStream: true, + useJSONDecoder: true, + stdout: writeCloser, + timeout: opts.Timeout, + }) + if err != nil { + dockerError, ok := err.(*Error) + if ok { + if dockerError.Status == http.StatusNotFound { + err = &NoSuchContainer{ID: opts.ID} + } + } + } + if closeErr := writeCloser.Close(); closeErr != nil && err == nil { + err = closeErr + } + errC <- err + close(errC) + }() + + quit := make(chan struct{}) + defer close(quit) + go func() { + // block here waiting for the signal to stop function + select { + case <-opts.Done: + readCloser.Close() + case <-quit: + return + } + }() + + decoder := json.NewDecoder(readCloser) + stats := new(Stats) + for err := decoder.Decode(stats); err != io.EOF; err = decoder.Decode(stats) { + if err != nil { + return err + } + opts.Stats <- stats + stats = new(Stats) + } + return nil +} + +// KillContainerOptions represents the set of options that can be used in a +// call to KillContainer. +// +// See https://goo.gl/hkS9i8 for more details. +type KillContainerOptions struct { + // The ID of the container. + ID string `qs:"-"` + + // The signal to send to the container. When omitted, Docker server + // will assume SIGKILL. + Signal Signal +} + +// KillContainer sends a signal to a container, returning an error in case of +// failure. +// +// See https://goo.gl/hkS9i8 for more details. +func (c *Client) KillContainer(opts KillContainerOptions) error { + path := "/containers/" + opts.ID + "/kill" + "?" + queryString(opts) + resp, err := c.do("POST", path, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return &NoSuchContainer{ID: opts.ID} + } + return err + } + resp.Body.Close() + return nil +} + +// RemoveContainerOptions encapsulates options to remove a container. +// +// See https://goo.gl/RQyX62 for more details. +type RemoveContainerOptions struct { + // The ID of the container. + ID string `qs:"-"` + + // A flag that indicates whether Docker should remove the volumes + // associated to the container. + RemoveVolumes bool `qs:"v"` + + // A flag that indicates whether Docker should remove the container + // even if it is currently running. + Force bool +} + +// RemoveContainer removes a container, returning an error in case of failure. +// +// See https://goo.gl/RQyX62 for more details. +func (c *Client) RemoveContainer(opts RemoveContainerOptions) error { + path := "/containers/" + opts.ID + "?" + queryString(opts) + resp, err := c.do("DELETE", path, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return &NoSuchContainer{ID: opts.ID} + } + return err + } + resp.Body.Close() + return nil +} + +// UploadToContainerOptions is the set of options that can be used when +// uploading an archive into a container. +// +// See https://goo.gl/Ss97HW for more details. +type UploadToContainerOptions struct { + InputStream io.Reader `json:"-" qs:"-"` + Path string `qs:"path"` + NoOverwriteDirNonDir bool `qs:"noOverwriteDirNonDir"` +} + +// UploadToContainer uploads a tar archive to be extracted to a path in the +// filesystem of the container. +// +// See https://goo.gl/Ss97HW for more details. +func (c *Client) UploadToContainer(id string, opts UploadToContainerOptions) error { + url := fmt.Sprintf("/containers/%s/archive?", id) + queryString(opts) + + return c.stream("PUT", url, streamOptions{ + in: opts.InputStream, + }) +} + +// DownloadFromContainerOptions is the set of options that can be used when +// downloading resources from a container. +// +// See https://goo.gl/KnZJDX for more details. +type DownloadFromContainerOptions struct { + OutputStream io.Writer `json:"-" qs:"-"` + Path string `qs:"path"` +} + +// DownloadFromContainer downloads a tar archive of files or folders in a container. +// +// See https://goo.gl/KnZJDX for more details. +func (c *Client) DownloadFromContainer(id string, opts DownloadFromContainerOptions) error { + url := fmt.Sprintf("/containers/%s/archive?", id) + queryString(opts) + + return c.stream("GET", url, streamOptions{ + setRawTerminal: true, + stdout: opts.OutputStream, + }) +} + +// CopyFromContainerOptions has been DEPRECATED, please use DownloadFromContainerOptions along with DownloadFromContainer. +// +// See https://goo.gl/R2jevW for more details. +type CopyFromContainerOptions struct { + OutputStream io.Writer `json:"-"` + Container string `json:"-"` + Resource string +} + +// CopyFromContainer has been DEPRECATED, please use DownloadFromContainerOptions along with DownloadFromContainer. +// +// See https://goo.gl/R2jevW for more details. +func (c *Client) CopyFromContainer(opts CopyFromContainerOptions) error { + if opts.Container == "" { + return &NoSuchContainer{ID: opts.Container} + } + url := fmt.Sprintf("/containers/%s/copy", opts.Container) + resp, err := c.do("POST", url, doOptions{data: opts}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return &NoSuchContainer{ID: opts.Container} + } + return err + } + defer resp.Body.Close() + _, err = io.Copy(opts.OutputStream, resp.Body) + return err +} + +// WaitContainer blocks until the given container stops, return the exit code +// of the container status. +// +// See https://goo.gl/Gc1rge for more details. +func (c *Client) WaitContainer(id string) (int, error) { + resp, err := c.do("POST", "/containers/"+id+"/wait", doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return 0, &NoSuchContainer{ID: id} + } + return 0, err + } + defer resp.Body.Close() + var r struct{ StatusCode int } + if err := json.NewDecoder(resp.Body).Decode(&r); err != nil { + return 0, err + } + return r.StatusCode, nil +} + +// CommitContainerOptions aggregates parameters to the CommitContainer method. +// +// See https://goo.gl/mqfoCw for more details. +type CommitContainerOptions struct { + Container string + Repository string `qs:"repo"` + Tag string + Message string `qs:"m"` + Author string + Run *Config `qs:"-"` +} + +// CommitContainer creates a new image from a container's changes. +// +// See https://goo.gl/mqfoCw for more details. +func (c *Client) CommitContainer(opts CommitContainerOptions) (*Image, error) { + path := "/commit?" + queryString(opts) + resp, err := c.do("POST", path, doOptions{data: opts.Run}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return nil, &NoSuchContainer{ID: opts.Container} + } + return nil, err + } + defer resp.Body.Close() + var image Image + if err := json.NewDecoder(resp.Body).Decode(&image); err != nil { + return nil, err + } + return &image, nil +} + +// AttachToContainerOptions is the set of options that can be used when +// attaching to a container. +// +// See https://goo.gl/NKpkFk for more details. +type AttachToContainerOptions struct { + Container string `qs:"-"` + InputStream io.Reader `qs:"-"` + OutputStream io.Writer `qs:"-"` + ErrorStream io.Writer `qs:"-"` + + // Get container logs, sending it to OutputStream. + Logs bool + + // Stream the response? + Stream bool + + // Attach to stdin, and use InputStream. + Stdin bool + + // Attach to stdout, and use OutputStream. + Stdout bool + + // Attach to stderr, and use ErrorStream. + Stderr bool + + // If set, after a successful connect, a sentinel will be sent and then the + // client will block on receive before continuing. + // + // It must be an unbuffered channel. Using a buffered channel can lead + // to unexpected behavior. + Success chan struct{} + + // Use raw terminal? Usually true when the container contains a TTY. + RawTerminal bool `qs:"-"` +} + +// AttachToContainer attaches to a container, using the given options. +// +// See https://goo.gl/NKpkFk for more details. +func (c *Client) AttachToContainer(opts AttachToContainerOptions) error { + if opts.Container == "" { + return &NoSuchContainer{ID: opts.Container} + } + path := "/containers/" + opts.Container + "/attach?" + queryString(opts) + return c.hijack("POST", path, hijackOptions{ + success: opts.Success, + setRawTerminal: opts.RawTerminal, + in: opts.InputStream, + stdout: opts.OutputStream, + stderr: opts.ErrorStream, + }) +} + +// LogsOptions represents the set of options used when getting logs from a +// container. +// +// See https://goo.gl/yl8PGm for more details. +type LogsOptions struct { + Container string `qs:"-"` + OutputStream io.Writer `qs:"-"` + ErrorStream io.Writer `qs:"-"` + Follow bool + Stdout bool + Stderr bool + Since int64 + Timestamps bool + Tail string + + // Use raw terminal? Usually true when the container contains a TTY. + RawTerminal bool `qs:"-"` +} + +// Logs gets stdout and stderr logs from the specified container. +// +// See https://goo.gl/yl8PGm for more details. +func (c *Client) Logs(opts LogsOptions) error { + if opts.Container == "" { + return &NoSuchContainer{ID: opts.Container} + } + if opts.Tail == "" { + opts.Tail = "all" + } + path := "/containers/" + opts.Container + "/logs?" + queryString(opts) + return c.stream("GET", path, streamOptions{ + setRawTerminal: opts.RawTerminal, + stdout: opts.OutputStream, + stderr: opts.ErrorStream, + }) +} + +// ResizeContainerTTY resizes the terminal to the given height and width. +// +// See https://goo.gl/xERhCc for more details. +func (c *Client) ResizeContainerTTY(id string, height, width int) error { + params := make(url.Values) + params.Set("h", strconv.Itoa(height)) + params.Set("w", strconv.Itoa(width)) + resp, err := c.do("POST", "/containers/"+id+"/resize?"+params.Encode(), doOptions{}) + if err != nil { + return err + } + resp.Body.Close() + return nil +} + +// ExportContainerOptions is the set of parameters to the ExportContainer +// method. +// +// See https://goo.gl/dOkTyk for more details. +type ExportContainerOptions struct { + ID string + OutputStream io.Writer +} + +// ExportContainer export the contents of container id as tar archive +// and prints the exported contents to stdout. +// +// See https://goo.gl/dOkTyk for more details. +func (c *Client) ExportContainer(opts ExportContainerOptions) error { + if opts.ID == "" { + return &NoSuchContainer{ID: opts.ID} + } + url := fmt.Sprintf("/containers/%s/export", opts.ID) + return c.stream("GET", url, streamOptions{ + setRawTerminal: true, + stdout: opts.OutputStream, + }) +} + +// NoSuchContainer is the error returned when a given container does not exist. +type NoSuchContainer struct { + ID string + Err error +} + +func (err *NoSuchContainer) Error() string { + if err.Err != nil { + return err.Err.Error() + } + return "No such container: " + err.ID +} + +// ContainerAlreadyRunning is the error returned when a given container is +// already running. +type ContainerAlreadyRunning struct { + ID string +} + +func (err *ContainerAlreadyRunning) Error() string { + return "Container already running: " + err.ID +} + +// ContainerNotRunning is the error returned when a given container is not +// running. +type ContainerNotRunning struct { + ID string +} + +func (err *ContainerNotRunning) Error() string { + return "Container not running: " + err.ID +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/env.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/env.go new file mode 100644 index 0000000..c54b0b0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/env.go @@ -0,0 +1,168 @@ +// Copyright 2014 Docker authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the DOCKER-LICENSE file. + +package docker + +import ( + "encoding/json" + "fmt" + "io" + "strconv" + "strings" +) + +// Env represents a list of key-pair represented in the form KEY=VALUE. +type Env []string + +// Get returns the string value of the given key. +func (env *Env) Get(key string) (value string) { + return env.Map()[key] +} + +// Exists checks whether the given key is defined in the internal Env +// representation. +func (env *Env) Exists(key string) bool { + _, exists := env.Map()[key] + return exists +} + +// GetBool returns a boolean representation of the given key. The key is false +// whenever its value if 0, no, false, none or an empty string. Any other value +// will be interpreted as true. +func (env *Env) GetBool(key string) (value bool) { + s := strings.ToLower(strings.Trim(env.Get(key), " \t")) + if s == "" || s == "0" || s == "no" || s == "false" || s == "none" { + return false + } + return true +} + +// SetBool defines a boolean value to the given key. +func (env *Env) SetBool(key string, value bool) { + if value { + env.Set(key, "1") + } else { + env.Set(key, "0") + } +} + +// GetInt returns the value of the provided key, converted to int. +// +// It the value cannot be represented as an integer, it returns -1. +func (env *Env) GetInt(key string) int { + return int(env.GetInt64(key)) +} + +// SetInt defines an integer value to the given key. +func (env *Env) SetInt(key string, value int) { + env.Set(key, strconv.Itoa(value)) +} + +// GetInt64 returns the value of the provided key, converted to int64. +// +// It the value cannot be represented as an integer, it returns -1. +func (env *Env) GetInt64(key string) int64 { + s := strings.Trim(env.Get(key), " \t") + val, err := strconv.ParseInt(s, 10, 64) + if err != nil { + return -1 + } + return val +} + +// SetInt64 defines an integer (64-bit wide) value to the given key. +func (env *Env) SetInt64(key string, value int64) { + env.Set(key, strconv.FormatInt(value, 10)) +} + +// GetJSON unmarshals the value of the provided key in the provided iface. +// +// iface is a value that can be provided to the json.Unmarshal function. +func (env *Env) GetJSON(key string, iface interface{}) error { + sval := env.Get(key) + if sval == "" { + return nil + } + return json.Unmarshal([]byte(sval), iface) +} + +// SetJSON marshals the given value to JSON format and stores it using the +// provided key. +func (env *Env) SetJSON(key string, value interface{}) error { + sval, err := json.Marshal(value) + if err != nil { + return err + } + env.Set(key, string(sval)) + return nil +} + +// GetList returns a list of strings matching the provided key. It handles the +// list as a JSON representation of a list of strings. +// +// If the given key matches to a single string, it will return a list +// containing only the value that matches the key. +func (env *Env) GetList(key string) []string { + sval := env.Get(key) + if sval == "" { + return nil + } + var l []string + if err := json.Unmarshal([]byte(sval), &l); err != nil { + l = append(l, sval) + } + return l +} + +// SetList stores the given list in the provided key, after serializing it to +// JSON format. +func (env *Env) SetList(key string, value []string) error { + return env.SetJSON(key, value) +} + +// Set defines the value of a key to the given string. +func (env *Env) Set(key, value string) { + *env = append(*env, key+"="+value) +} + +// Decode decodes `src` as a json dictionary, and adds each decoded key-value +// pair to the environment. +// +// If `src` cannot be decoded as a json dictionary, an error is returned. +func (env *Env) Decode(src io.Reader) error { + m := make(map[string]interface{}) + if err := json.NewDecoder(src).Decode(&m); err != nil { + return err + } + for k, v := range m { + env.SetAuto(k, v) + } + return nil +} + +// SetAuto will try to define the Set* method to call based on the given value. +func (env *Env) SetAuto(key string, value interface{}) { + if fval, ok := value.(float64); ok { + env.SetInt64(key, int64(fval)) + } else if sval, ok := value.(string); ok { + env.Set(key, sval) + } else if val, err := json.Marshal(value); err == nil { + env.Set(key, string(val)) + } else { + env.Set(key, fmt.Sprintf("%v", value)) + } +} + +// Map returns the map representation of the env. +func (env *Env) Map() map[string]string { + if len(*env) == 0 { + return nil + } + m := make(map[string]string) + for _, kv := range *env { + parts := strings.SplitN(kv, "=", 2) + m[parts[0]] = parts[1] + } + return m +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/event.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/event.go new file mode 100644 index 0000000..eaffddb --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/event.go @@ -0,0 +1,304 @@ +// Copyright 2015 go-dockerclient authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package docker + +import ( + "encoding/json" + "errors" + "fmt" + "io" + "math" + "net" + "net/http" + "net/http/httputil" + "sync" + "sync/atomic" + "time" +) + +// APIEvents represents an event returned by the API. +type APIEvents struct { + Status string `json:"Status,omitempty" yaml:"Status,omitempty"` + ID string `json:"ID,omitempty" yaml:"ID,omitempty"` + From string `json:"From,omitempty" yaml:"From,omitempty"` + Time int64 `json:"Time,omitempty" yaml:"Time,omitempty"` +} + +type eventMonitoringState struct { + sync.RWMutex + sync.WaitGroup + enabled bool + lastSeen *int64 + C chan *APIEvents + errC chan error + listeners []chan<- *APIEvents +} + +const ( + maxMonitorConnRetries = 5 + retryInitialWaitTime = 10. +) + +var ( + // ErrNoListeners is the error returned when no listeners are available + // to receive an event. + ErrNoListeners = errors.New("no listeners present to receive event") + + // ErrListenerAlreadyExists is the error returned when the listerner already + // exists. + ErrListenerAlreadyExists = errors.New("listener already exists for docker events") + + // EOFEvent is sent when the event listener receives an EOF error. + EOFEvent = &APIEvents{ + Status: "EOF", + } +) + +// AddEventListener adds a new listener to container events in the Docker API. +// +// The parameter is a channel through which events will be sent. +func (c *Client) AddEventListener(listener chan<- *APIEvents) error { + var err error + if !c.eventMonitor.isEnabled() { + err = c.eventMonitor.enableEventMonitoring(c) + if err != nil { + return err + } + } + err = c.eventMonitor.addListener(listener) + if err != nil { + return err + } + return nil +} + +// RemoveEventListener removes a listener from the monitor. +func (c *Client) RemoveEventListener(listener chan *APIEvents) error { + err := c.eventMonitor.removeListener(listener) + if err != nil { + return err + } + if len(c.eventMonitor.listeners) == 0 { + c.eventMonitor.disableEventMonitoring() + } + return nil +} + +func (eventState *eventMonitoringState) addListener(listener chan<- *APIEvents) error { + eventState.Lock() + defer eventState.Unlock() + if listenerExists(listener, &eventState.listeners) { + return ErrListenerAlreadyExists + } + eventState.Add(1) + eventState.listeners = append(eventState.listeners, listener) + return nil +} + +func (eventState *eventMonitoringState) removeListener(listener chan<- *APIEvents) error { + eventState.Lock() + defer eventState.Unlock() + if listenerExists(listener, &eventState.listeners) { + var newListeners []chan<- *APIEvents + for _, l := range eventState.listeners { + if l != listener { + newListeners = append(newListeners, l) + } + } + eventState.listeners = newListeners + eventState.Add(-1) + } + return nil +} + +func (eventState *eventMonitoringState) closeListeners() { + for _, l := range eventState.listeners { + close(l) + eventState.Add(-1) + } + eventState.listeners = nil +} + +func listenerExists(a chan<- *APIEvents, list *[]chan<- *APIEvents) bool { + for _, b := range *list { + if b == a { + return true + } + } + return false +} + +func (eventState *eventMonitoringState) enableEventMonitoring(c *Client) error { + eventState.Lock() + defer eventState.Unlock() + if !eventState.enabled { + eventState.enabled = true + var lastSeenDefault = int64(0) + eventState.lastSeen = &lastSeenDefault + eventState.C = make(chan *APIEvents, 100) + eventState.errC = make(chan error, 1) + go eventState.monitorEvents(c) + } + return nil +} + +func (eventState *eventMonitoringState) disableEventMonitoring() error { + eventState.Lock() + defer eventState.Unlock() + + eventState.closeListeners() + + eventState.Wait() + + if eventState.enabled { + eventState.enabled = false + close(eventState.C) + close(eventState.errC) + } + return nil +} + +func (eventState *eventMonitoringState) monitorEvents(c *Client) { + var err error + for eventState.noListeners() { + time.Sleep(10 * time.Millisecond) + } + if err = eventState.connectWithRetry(c); err != nil { + // terminate if connect failed + eventState.disableEventMonitoring() + return + } + for eventState.isEnabled() { + timeout := time.After(100 * time.Millisecond) + select { + case ev, ok := <-eventState.C: + if !ok { + return + } + if ev == EOFEvent { + eventState.disableEventMonitoring() + return + } + eventState.updateLastSeen(ev) + go eventState.sendEvent(ev) + case err = <-eventState.errC: + if err == ErrNoListeners { + eventState.disableEventMonitoring() + return + } else if err != nil { + defer func() { go eventState.monitorEvents(c) }() + return + } + case <-timeout: + continue + } + } +} + +func (eventState *eventMonitoringState) connectWithRetry(c *Client) error { + var retries int + var err error + for err = c.eventHijack(atomic.LoadInt64(eventState.lastSeen), eventState.C, eventState.errC); err != nil && retries < maxMonitorConnRetries; retries++ { + waitTime := int64(retryInitialWaitTime * math.Pow(2, float64(retries))) + time.Sleep(time.Duration(waitTime) * time.Millisecond) + err = c.eventHijack(atomic.LoadInt64(eventState.lastSeen), eventState.C, eventState.errC) + } + return err +} + +func (eventState *eventMonitoringState) noListeners() bool { + eventState.RLock() + defer eventState.RUnlock() + return len(eventState.listeners) == 0 +} + +func (eventState *eventMonitoringState) isEnabled() bool { + eventState.RLock() + defer eventState.RUnlock() + return eventState.enabled +} + +func (eventState *eventMonitoringState) sendEvent(event *APIEvents) { + eventState.RLock() + defer eventState.RUnlock() + eventState.Add(1) + defer eventState.Done() + if eventState.enabled { + if len(eventState.listeners) == 0 { + eventState.errC <- ErrNoListeners + return + } + + for _, listener := range eventState.listeners { + listener <- event + } + } +} + +func (eventState *eventMonitoringState) updateLastSeen(e *APIEvents) { + eventState.Lock() + defer eventState.Unlock() + if atomic.LoadInt64(eventState.lastSeen) < e.Time { + atomic.StoreInt64(eventState.lastSeen, e.Time) + } +} + +func (c *Client) eventHijack(startTime int64, eventChan chan *APIEvents, errChan chan error) error { + uri := "/events" + if startTime != 0 { + uri += fmt.Sprintf("?since=%d", startTime) + } + protocol := c.endpointURL.Scheme + address := c.endpointURL.Path + if protocol != "unix" { + protocol = "tcp" + address = c.endpointURL.Host + } + var dial net.Conn + var err error + if c.TLSConfig == nil { + dial, err = c.Dialer.Dial(protocol, address) + } else { + dial, err = tlsDialWithDialer(c.Dialer, protocol, address, c.TLSConfig) + } + if err != nil { + return err + } + conn := httputil.NewClientConn(dial, nil) + req, err := http.NewRequest("GET", uri, nil) + if err != nil { + return err + } + res, err := conn.Do(req) + if err != nil { + return err + } + go func(res *http.Response, conn *httputil.ClientConn) { + defer conn.Close() + defer res.Body.Close() + decoder := json.NewDecoder(res.Body) + for { + var event APIEvents + if err = decoder.Decode(&event); err != nil { + if err == io.EOF || err == io.ErrUnexpectedEOF { + if c.eventMonitor.isEnabled() { + // Signal that we're exiting. + eventChan <- EOFEvent + } + break + } + errChan <- err + } + if event.Time == 0 { + continue + } + if !c.eventMonitor.isEnabled() { + return + } + eventChan <- &event + } + }(res, conn) + return nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/exec.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/exec.go new file mode 100644 index 0000000..f3b705f --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/exec.go @@ -0,0 +1,186 @@ +// Copyright 2015 go-dockerclient authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package docker + +import ( + "encoding/json" + "fmt" + "io" + "net/http" + "net/url" + "strconv" +) + +// Exec is the type representing a `docker exec` instance and containing the +// instance ID +type Exec struct { + ID string `json:"Id,omitempty" yaml:"Id,omitempty"` +} + +// CreateExecOptions specify parameters to the CreateExecContainer function. +// +// See https://goo.gl/1KSIb7 for more details +type CreateExecOptions struct { + AttachStdin bool `json:"AttachStdin,omitempty" yaml:"AttachStdin,omitempty"` + AttachStdout bool `json:"AttachStdout,omitempty" yaml:"AttachStdout,omitempty"` + AttachStderr bool `json:"AttachStderr,omitempty" yaml:"AttachStderr,omitempty"` + Tty bool `json:"Tty,omitempty" yaml:"Tty,omitempty"` + Cmd []string `json:"Cmd,omitempty" yaml:"Cmd,omitempty"` + Container string `json:"Container,omitempty" yaml:"Container,omitempty"` + User string `json:"User,omitempty" yaml:"User,omitempty"` +} + +// CreateExec sets up an exec instance in a running container `id`, returning the exec +// instance, or an error in case of failure. +// +// See https://goo.gl/1KSIb7 for more details +func (c *Client) CreateExec(opts CreateExecOptions) (*Exec, error) { + path := fmt.Sprintf("/containers/%s/exec", opts.Container) + resp, err := c.do("POST", path, doOptions{data: opts}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return nil, &NoSuchContainer{ID: opts.Container} + } + return nil, err + } + defer resp.Body.Close() + var exec Exec + if err := json.NewDecoder(resp.Body).Decode(&exec); err != nil { + return nil, err + } + + return &exec, nil +} + +// StartExecOptions specify parameters to the StartExecContainer function. +// +// See https://goo.gl/iQCnto for more details +type StartExecOptions struct { + Detach bool `json:"Detach,omitempty" yaml:"Detach,omitempty"` + + Tty bool `json:"Tty,omitempty" yaml:"Tty,omitempty"` + + InputStream io.Reader `qs:"-"` + OutputStream io.Writer `qs:"-"` + ErrorStream io.Writer `qs:"-"` + + // Use raw terminal? Usually true when the container contains a TTY. + RawTerminal bool `qs:"-"` + + // If set, after a successful connect, a sentinel will be sent and then the + // client will block on receive before continuing. + // + // It must be an unbuffered channel. Using a buffered channel can lead + // to unexpected behavior. + Success chan struct{} `json:"-"` +} + +// StartExec starts a previously set up exec instance id. If opts.Detach is +// true, it returns after starting the exec command. Otherwise, it sets up an +// interactive session with the exec command. +// +// See https://goo.gl/iQCnto for more details +func (c *Client) StartExec(id string, opts StartExecOptions) error { + if id == "" { + return &NoSuchExec{ID: id} + } + + path := fmt.Sprintf("/exec/%s/start", id) + + if opts.Detach { + resp, err := c.do("POST", path, doOptions{data: opts}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return &NoSuchExec{ID: id} + } + return err + } + defer resp.Body.Close() + return nil + } + + return c.hijack("POST", path, hijackOptions{ + success: opts.Success, + setRawTerminal: opts.RawTerminal, + in: opts.InputStream, + stdout: opts.OutputStream, + stderr: opts.ErrorStream, + data: opts, + }) +} + +// ResizeExecTTY resizes the tty session used by the exec command id. This API +// is valid only if Tty was specified as part of creating and starting the exec +// command. +// +// See https://goo.gl/e1JpsA for more details +func (c *Client) ResizeExecTTY(id string, height, width int) error { + params := make(url.Values) + params.Set("h", strconv.Itoa(height)) + params.Set("w", strconv.Itoa(width)) + + path := fmt.Sprintf("/exec/%s/resize?%s", id, params.Encode()) + resp, err := c.do("POST", path, doOptions{}) + if err != nil { + return err + } + resp.Body.Close() + return nil +} + +// ExecProcessConfig is a type describing the command associated to a Exec +// instance. It's used in the ExecInspect type. +type ExecProcessConfig struct { + Privileged bool `json:"privileged,omitempty" yaml:"privileged,omitempty"` + User string `json:"user,omitempty" yaml:"user,omitempty"` + Tty bool `json:"tty,omitempty" yaml:"tty,omitempty"` + EntryPoint string `json:"entrypoint,omitempty" yaml:"entrypoint,omitempty"` + Arguments []string `json:"arguments,omitempty" yaml:"arguments,omitempty"` +} + +// ExecInspect is a type with details about a exec instance, including the +// exit code if the command has finished running. It's returned by a api +// call to /exec/(id)/json +// +// See https://goo.gl/gPtX9R for more details +type ExecInspect struct { + ID string `json:"ID,omitempty" yaml:"ID,omitempty"` + Running bool `json:"Running,omitempty" yaml:"Running,omitempty"` + ExitCode int `json:"ExitCode,omitempty" yaml:"ExitCode,omitempty"` + OpenStdin bool `json:"OpenStdin,omitempty" yaml:"OpenStdin,omitempty"` + OpenStderr bool `json:"OpenStderr,omitempty" yaml:"OpenStderr,omitempty"` + OpenStdout bool `json:"OpenStdout,omitempty" yaml:"OpenStdout,omitempty"` + ProcessConfig ExecProcessConfig `json:"ProcessConfig,omitempty" yaml:"ProcessConfig,omitempty"` + Container Container `json:"Container,omitempty" yaml:"Container,omitempty"` +} + +// InspectExec returns low-level information about the exec command id. +// +// See https://goo.gl/gPtX9R for more details +func (c *Client) InspectExec(id string) (*ExecInspect, error) { + path := fmt.Sprintf("/exec/%s/json", id) + resp, err := c.do("GET", path, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return nil, &NoSuchExec{ID: id} + } + return nil, err + } + defer resp.Body.Close() + var exec ExecInspect + if err := json.NewDecoder(resp.Body).Decode(&exec); err != nil { + return nil, err + } + return &exec, nil +} + +// NoSuchExec is the error returned when a given exec instance does not exist. +type NoSuchExec struct { + ID string +} + +func (err *NoSuchExec) Error() string { + return "No such exec instance: " + err.ID +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/CHANGELOG.md b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/CHANGELOG.md new file mode 100644 index 0000000..a387154 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/CHANGELOG.md @@ -0,0 +1,26 @@ +# (Unreleased) + +logrus/core: improve performance of text formatter by 40% +logrus/core: expose `LevelHooks` type + +# 0.8.2 + +logrus: fix more Fatal family functions + +# 0.8.1 + +logrus: fix not exiting on `Fatalf` and `Fatalln` + +# 0.8.0 + +logrus: defaults to stderr instead of stdout +hooks/sentry: add special field for `*http.Request` +formatter/text: ignore Windows for colors + +# 0.7.3 + +formatter/\*: allow configuration of timestamp layout + +# 0.7.2 + +formatter/text: Add configuration option for time format (#158) diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/LICENSE b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/LICENSE new file mode 100644 index 0000000..f090cb4 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2014 Simon Eskildsen + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/README.md b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/README.md new file mode 100644 index 0000000..4be3784 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/README.md @@ -0,0 +1,355 @@ +# Logrus :walrus: [![Build Status](https://travis-ci.org/Sirupsen/logrus.svg?branch=master)](https://travis-ci.org/Sirupsen/logrus) [![godoc reference](https://godoc.org/github.com/Sirupsen/logrus?status.png)][godoc] + +Logrus is a structured logger for Go (golang), completely API compatible with +the standard library logger. [Godoc][godoc]. **Please note the Logrus API is not +yet stable (pre 1.0). Logrus itself is completely stable and has been used in +many large deployments. The core API is unlikely to change much but please +version control your Logrus to make sure you aren't fetching latest `master` on +every build.** + +Nicely color-coded in development (when a TTY is attached, otherwise just +plain text): + +![Colored](http://i.imgur.com/PY7qMwd.png) + +With `log.Formatter = new(logrus.JSONFormatter)`, for easy parsing by logstash +or Splunk: + +```json +{"animal":"walrus","level":"info","msg":"A group of walrus emerges from the +ocean","size":10,"time":"2014-03-10 19:57:38.562264131 -0400 EDT"} + +{"level":"warning","msg":"The group's number increased tremendously!", +"number":122,"omg":true,"time":"2014-03-10 19:57:38.562471297 -0400 EDT"} + +{"animal":"walrus","level":"info","msg":"A giant walrus appears!", +"size":10,"time":"2014-03-10 19:57:38.562500591 -0400 EDT"} + +{"animal":"walrus","level":"info","msg":"Tremendously sized cow enters the ocean.", +"size":9,"time":"2014-03-10 19:57:38.562527896 -0400 EDT"} + +{"level":"fatal","msg":"The ice breaks!","number":100,"omg":true, +"time":"2014-03-10 19:57:38.562543128 -0400 EDT"} +``` + +With the default `log.Formatter = new(&log.TextFormatter{})` when a TTY is not +attached, the output is compatible with the +[logfmt](http://godoc.org/github.com/kr/logfmt) format: + +```text +time="2015-03-26T01:27:38-04:00" level=debug msg="Started observing beach" animal=walrus number=8 +time="2015-03-26T01:27:38-04:00" level=info msg="A group of walrus emerges from the ocean" animal=walrus size=10 +time="2015-03-26T01:27:38-04:00" level=warning msg="The group's number increased tremendously!" number=122 omg=true +time="2015-03-26T01:27:38-04:00" level=debug msg="Temperature changes" temperature=-4 +time="2015-03-26T01:27:38-04:00" level=panic msg="It's over 9000!" animal=orca size=9009 +time="2015-03-26T01:27:38-04:00" level=fatal msg="The ice breaks!" err=&{0x2082280c0 map[animal:orca size:9009] 2015-03-26 01:27:38.441574009 -0400 EDT panic It's over 9000!} number=100 omg=true +exit status 1 +``` + +#### Example + +The simplest way to use Logrus is simply the package-level exported logger: + +```go +package main + +import ( + log "github.com/Sirupsen/logrus" +) + +func main() { + log.WithFields(log.Fields{ + "animal": "walrus", + }).Info("A walrus appears") +} +``` + +Note that it's completely api-compatible with the stdlib logger, so you can +replace your `log` imports everywhere with `log "github.com/Sirupsen/logrus"` +and you'll now have the flexibility of Logrus. You can customize it all you +want: + +```go +package main + +import ( + "os" + log "github.com/Sirupsen/logrus" + "github.com/Sirupsen/logrus/hooks/airbrake" +) + +func init() { + // Log as JSON instead of the default ASCII formatter. + log.SetFormatter(&log.JSONFormatter{}) + + // Use the Airbrake hook to report errors that have Error severity or above to + // an exception tracker. You can create custom hooks, see the Hooks section. + log.AddHook(airbrake.NewHook("https://example.com", "xyz", "development")) + + // Output to stderr instead of stdout, could also be a file. + log.SetOutput(os.Stderr) + + // Only log the warning severity or above. + log.SetLevel(log.WarnLevel) +} + +func main() { + log.WithFields(log.Fields{ + "animal": "walrus", + "size": 10, + }).Info("A group of walrus emerges from the ocean") + + log.WithFields(log.Fields{ + "omg": true, + "number": 122, + }).Warn("The group's number increased tremendously!") + + log.WithFields(log.Fields{ + "omg": true, + "number": 100, + }).Fatal("The ice breaks!") + + // A common pattern is to re-use fields between logging statements by re-using + // the logrus.Entry returned from WithFields() + contextLogger := log.WithFields(log.Fields{ + "common": "this is a common field", + "other": "I also should be logged always", + }) + + contextLogger.Info("I'll be logged with common and other field") + contextLogger.Info("Me too") +} +``` + +For more advanced usage such as logging to multiple locations from the same +application, you can also create an instance of the `logrus` Logger: + +```go +package main + +import ( + "github.com/Sirupsen/logrus" +) + +// Create a new instance of the logger. You can have any number of instances. +var log = logrus.New() + +func main() { + // The API for setting attributes is a little different than the package level + // exported logger. See Godoc. + log.Out = os.Stderr + + log.WithFields(logrus.Fields{ + "animal": "walrus", + "size": 10, + }).Info("A group of walrus emerges from the ocean") +} +``` + +#### Fields + +Logrus encourages careful, structured logging though logging fields instead of +long, unparseable error messages. For example, instead of: `log.Fatalf("Failed +to send event %s to topic %s with key %d")`, you should log the much more +discoverable: + +```go +log.WithFields(log.Fields{ + "event": event, + "topic": topic, + "key": key, +}).Fatal("Failed to send event") +``` + +We've found this API forces you to think about logging in a way that produces +much more useful logging messages. We've been in countless situations where just +a single added field to a log statement that was already there would've saved us +hours. The `WithFields` call is optional. + +In general, with Logrus using any of the `printf`-family functions should be +seen as a hint you should add a field, however, you can still use the +`printf`-family functions with Logrus. + +#### Hooks + +You can add hooks for logging levels. For example to send errors to an exception +tracking service on `Error`, `Fatal` and `Panic`, info to StatsD or log to +multiple places simultaneously, e.g. syslog. + +Logrus comes with [built-in hooks](hooks/). Add those, or your custom hook, in +`init`: + +```go +import ( + log "github.com/Sirupsen/logrus" + "github.com/Sirupsen/logrus/hooks/airbrake" + logrus_syslog "github.com/Sirupsen/logrus/hooks/syslog" + "log/syslog" +) + +func init() { + log.AddHook(airbrake.NewHook("https://example.com", "xyz", "development")) + + hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "") + if err != nil { + log.Error("Unable to connect to local syslog daemon") + } else { + log.AddHook(hook) + } +} +``` + + +| Hook | Description | +| ----- | ----------- | +| [Airbrake](https://github.com/Sirupsen/logrus/blob/master/hooks/airbrake/airbrake.go) | Send errors to an exception tracking service compatible with the Airbrake API. Uses [`airbrake-go`](https://github.com/tobi/airbrake-go) behind the scenes. | +| [Papertrail](https://github.com/Sirupsen/logrus/blob/master/hooks/papertrail/papertrail.go) | Send errors to the Papertrail hosted logging service via UDP. | +| [Syslog](https://github.com/Sirupsen/logrus/blob/master/hooks/syslog/syslog.go) | Send errors to remote syslog server. Uses standard library `log/syslog` behind the scenes. | +| [BugSnag](https://github.com/Sirupsen/logrus/blob/master/hooks/bugsnag/bugsnag.go) | Send errors to the Bugsnag exception tracking service. | +| [Sentry](https://github.com/Sirupsen/logrus/blob/master/hooks/sentry/sentry.go) | Send errors to the Sentry error logging and aggregation service. | +| [Hiprus](https://github.com/nubo/hiprus) | Send errors to a channel in hipchat. | +| [Logrusly](https://github.com/sebest/logrusly) | Send logs to [Loggly](https://www.loggly.com/) | +| [Slackrus](https://github.com/johntdyer/slackrus) | Hook for Slack chat. | +| [Journalhook](https://github.com/wercker/journalhook) | Hook for logging to `systemd-journald` | +| [Graylog](https://github.com/gemnasium/logrus-hooks/tree/master/graylog) | Hook for logging to [Graylog](http://graylog2.org/) | +| [Raygun](https://github.com/squirkle/logrus-raygun-hook) | Hook for logging to [Raygun.io](http://raygun.io/) | +| [LFShook](https://github.com/rifflock/lfshook) | Hook for logging to the local filesystem | +| [Honeybadger](https://github.com/agonzalezro/logrus_honeybadger) | Hook for sending exceptions to Honeybadger | +| [Mail](https://github.com/zbindenren/logrus_mail) | Hook for sending exceptions via mail | +| [Rollrus](https://github.com/heroku/rollrus) | Hook for sending errors to rollbar | + +#### Level logging + +Logrus has six logging levels: Debug, Info, Warning, Error, Fatal and Panic. + +```go +log.Debug("Useful debugging information.") +log.Info("Something noteworthy happened!") +log.Warn("You should probably take a look at this.") +log.Error("Something failed but I'm not quitting.") +// Calls os.Exit(1) after logging +log.Fatal("Bye.") +// Calls panic() after logging +log.Panic("I'm bailing.") +``` + +You can set the logging level on a `Logger`, then it will only log entries with +that severity or anything above it: + +```go +// Will log anything that is info or above (warn, error, fatal, panic). Default. +log.SetLevel(log.InfoLevel) +``` + +It may be useful to set `log.Level = logrus.DebugLevel` in a debug or verbose +environment if your application has that. + +#### Entries + +Besides the fields added with `WithField` or `WithFields` some fields are +automatically added to all logging events: + +1. `time`. The timestamp when the entry was created. +2. `msg`. The logging message passed to `{Info,Warn,Error,Fatal,Panic}` after + the `AddFields` call. E.g. `Failed to send event.` +3. `level`. The logging level. E.g. `info`. + +#### Environments + +Logrus has no notion of environment. + +If you wish for hooks and formatters to only be used in specific environments, +you should handle that yourself. For example, if your application has a global +variable `Environment`, which is a string representation of the environment you +could do: + +```go +import ( + log "github.com/Sirupsen/logrus" +) + +init() { + // do something here to set environment depending on an environment variable + // or command-line flag + if Environment == "production" { + log.SetFormatter(&logrus.JSONFormatter{}) + } else { + // The TextFormatter is default, you don't actually have to do this. + log.SetFormatter(&log.TextFormatter{}) + } +} +``` + +This configuration is how `logrus` was intended to be used, but JSON in +production is mostly only useful if you do log aggregation with tools like +Splunk or Logstash. + +#### Formatters + +The built-in logging formatters are: + +* `logrus.TextFormatter`. Logs the event in colors if stdout is a tty, otherwise + without colors. + * *Note:* to force colored output when there is no TTY, set the `ForceColors` + field to `true`. To force no colored output even if there is a TTY set the + `DisableColors` field to `true` +* `logrus.JSONFormatter`. Logs fields as JSON. +* `logrus_logstash.LogstashFormatter`. Logs fields as Logstash Events (http://logstash.net). + + ```go + logrus.SetFormatter(&logrus_logstash.LogstashFormatter{Type: “application_name"}) + ``` + +Third party logging formatters: + +* [`zalgo`](https://github.com/aybabtme/logzalgo): invoking the P͉̫o̳̼̊w̖͈̰͎e̬͔̭͂r͚̼̹̲ ̫͓͉̳͈ō̠͕͖̚f̝͍̠ ͕̲̞͖͑Z̖̫̤̫ͪa͉̬͈̗l͖͎g̳̥o̰̥̅!̣͔̲̻͊̄ ̙̘̦̹̦. + +You can define your formatter by implementing the `Formatter` interface, +requiring a `Format` method. `Format` takes an `*Entry`. `entry.Data` is a +`Fields` type (`map[string]interface{}`) with all your fields as well as the +default ones (see Entries section above): + +```go +type MyJSONFormatter struct { +} + +log.SetFormatter(new(MyJSONFormatter)) + +func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) { + // Note this doesn't include Time, Level and Message which are available on + // the Entry. Consult `godoc` on information about those fields or read the + // source of the official loggers. + serialized, err := json.Marshal(entry.Data) + if err != nil { + return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err) + } + return append(serialized, '\n'), nil +} +``` + +#### Logger as an `io.Writer` + +Logrus can be transformed into an `io.Writer`. That writer is the end of an `io.Pipe` and it is your responsibility to close it. + +```go +w := logger.Writer() +defer w.Close() + +srv := http.Server{ + // create a stdlib log.Logger that writes to + // logrus.Logger. + ErrorLog: log.New(w, "", 0), +} +``` + +Each line written to that writer will be printed the usual way, using formatters +and hooks. The level for those entries is `info`. + +#### Rotation + +Log rotation is not provided with Logrus. Log rotation should be done by an +external program (like `logrotate(8)`) that can compress and delete old log +entries. It should not be a feature of the application-level logger. + + +[godoc]: https://godoc.org/github.com/Sirupsen/logrus diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/entry.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/entry.go new file mode 100644 index 0000000..699ea03 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/entry.go @@ -0,0 +1,254 @@ +package logrus + +import ( + "bytes" + "fmt" + "io" + "os" + "time" +) + +// An entry is the final or intermediate Logrus logging entry. It contains all +// the fields passed with WithField{,s}. It's finally logged when Debug, Info, +// Warn, Error, Fatal or Panic is called on it. These objects can be reused and +// passed around as much as you wish to avoid field duplication. +type Entry struct { + Logger *Logger + + // Contains all the fields set by the user. + Data Fields + + // Time at which the log entry was created + Time time.Time + + // Level the log entry was logged at: Debug, Info, Warn, Error, Fatal or Panic + Level Level + + // Message passed to Debug, Info, Warn, Error, Fatal or Panic + Message string +} + +func NewEntry(logger *Logger) *Entry { + return &Entry{ + Logger: logger, + // Default is three fields, give a little extra room + Data: make(Fields, 5), + } +} + +// Returns a reader for the entry, which is a proxy to the formatter. +func (entry *Entry) Reader() (*bytes.Buffer, error) { + serialized, err := entry.Logger.Formatter.Format(entry) + return bytes.NewBuffer(serialized), err +} + +// Returns the string representation from the reader and ultimately the +// formatter. +func (entry *Entry) String() (string, error) { + reader, err := entry.Reader() + if err != nil { + return "", err + } + + return reader.String(), err +} + +// Add a single field to the Entry. +func (entry *Entry) WithField(key string, value interface{}) *Entry { + return entry.WithFields(Fields{key: value}) +} + +// Add a map of fields to the Entry. +func (entry *Entry) WithFields(fields Fields) *Entry { + data := Fields{} + for k, v := range entry.Data { + data[k] = v + } + for k, v := range fields { + data[k] = v + } + return &Entry{Logger: entry.Logger, Data: data} +} + +func (entry *Entry) log(level Level, msg string) { + entry.Time = time.Now() + entry.Level = level + entry.Message = msg + + if err := entry.Logger.Hooks.Fire(level, entry); err != nil { + entry.Logger.mu.Lock() + fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err) + entry.Logger.mu.Unlock() + } + + reader, err := entry.Reader() + if err != nil { + entry.Logger.mu.Lock() + fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err) + entry.Logger.mu.Unlock() + } + + entry.Logger.mu.Lock() + defer entry.Logger.mu.Unlock() + + _, err = io.Copy(entry.Logger.Out, reader) + if err != nil { + fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err) + } + + // To avoid Entry#log() returning a value that only would make sense for + // panic() to use in Entry#Panic(), we avoid the allocation by checking + // directly here. + if level <= PanicLevel { + panic(entry) + } +} + +func (entry *Entry) Debug(args ...interface{}) { + if entry.Logger.Level >= DebugLevel { + entry.log(DebugLevel, fmt.Sprint(args...)) + } +} + +func (entry *Entry) Print(args ...interface{}) { + entry.Info(args...) +} + +func (entry *Entry) Info(args ...interface{}) { + if entry.Logger.Level >= InfoLevel { + entry.log(InfoLevel, fmt.Sprint(args...)) + } +} + +func (entry *Entry) Warn(args ...interface{}) { + if entry.Logger.Level >= WarnLevel { + entry.log(WarnLevel, fmt.Sprint(args...)) + } +} + +func (entry *Entry) Warning(args ...interface{}) { + entry.Warn(args...) +} + +func (entry *Entry) Error(args ...interface{}) { + if entry.Logger.Level >= ErrorLevel { + entry.log(ErrorLevel, fmt.Sprint(args...)) + } +} + +func (entry *Entry) Fatal(args ...interface{}) { + if entry.Logger.Level >= FatalLevel { + entry.log(FatalLevel, fmt.Sprint(args...)) + } + os.Exit(1) +} + +func (entry *Entry) Panic(args ...interface{}) { + if entry.Logger.Level >= PanicLevel { + entry.log(PanicLevel, fmt.Sprint(args...)) + } + panic(fmt.Sprint(args...)) +} + +// Entry Printf family functions + +func (entry *Entry) Debugf(format string, args ...interface{}) { + if entry.Logger.Level >= DebugLevel { + entry.Debug(fmt.Sprintf(format, args...)) + } +} + +func (entry *Entry) Infof(format string, args ...interface{}) { + if entry.Logger.Level >= InfoLevel { + entry.Info(fmt.Sprintf(format, args...)) + } +} + +func (entry *Entry) Printf(format string, args ...interface{}) { + entry.Infof(format, args...) +} + +func (entry *Entry) Warnf(format string, args ...interface{}) { + if entry.Logger.Level >= WarnLevel { + entry.Warn(fmt.Sprintf(format, args...)) + } +} + +func (entry *Entry) Warningf(format string, args ...interface{}) { + entry.Warnf(format, args...) +} + +func (entry *Entry) Errorf(format string, args ...interface{}) { + if entry.Logger.Level >= ErrorLevel { + entry.Error(fmt.Sprintf(format, args...)) + } +} + +func (entry *Entry) Fatalf(format string, args ...interface{}) { + if entry.Logger.Level >= FatalLevel { + entry.Fatal(fmt.Sprintf(format, args...)) + } + os.Exit(1) +} + +func (entry *Entry) Panicf(format string, args ...interface{}) { + if entry.Logger.Level >= PanicLevel { + entry.Panic(fmt.Sprintf(format, args...)) + } +} + +// Entry Println family functions + +func (entry *Entry) Debugln(args ...interface{}) { + if entry.Logger.Level >= DebugLevel { + entry.Debug(entry.sprintlnn(args...)) + } +} + +func (entry *Entry) Infoln(args ...interface{}) { + if entry.Logger.Level >= InfoLevel { + entry.Info(entry.sprintlnn(args...)) + } +} + +func (entry *Entry) Println(args ...interface{}) { + entry.Infoln(args...) +} + +func (entry *Entry) Warnln(args ...interface{}) { + if entry.Logger.Level >= WarnLevel { + entry.Warn(entry.sprintlnn(args...)) + } +} + +func (entry *Entry) Warningln(args ...interface{}) { + entry.Warnln(args...) +} + +func (entry *Entry) Errorln(args ...interface{}) { + if entry.Logger.Level >= ErrorLevel { + entry.Error(entry.sprintlnn(args...)) + } +} + +func (entry *Entry) Fatalln(args ...interface{}) { + if entry.Logger.Level >= FatalLevel { + entry.Fatal(entry.sprintlnn(args...)) + } + os.Exit(1) +} + +func (entry *Entry) Panicln(args ...interface{}) { + if entry.Logger.Level >= PanicLevel { + entry.Panic(entry.sprintlnn(args...)) + } +} + +// Sprintlnn => Sprint no newline. This is to get the behavior of how +// fmt.Sprintln where spaces are always added between operands, regardless of +// their type. Instead of vendoring the Sprintln implementation to spare a +// string allocation, we do the simplest thing. +func (entry *Entry) sprintlnn(args ...interface{}) string { + msg := fmt.Sprintln(args...) + return msg[:len(msg)-1] +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/exported.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/exported.go new file mode 100644 index 0000000..a67e1b8 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/exported.go @@ -0,0 +1,188 @@ +package logrus + +import ( + "io" +) + +var ( + // std is the name of the standard logger in stdlib `log` + std = New() +) + +func StandardLogger() *Logger { + return std +} + +// SetOutput sets the standard logger output. +func SetOutput(out io.Writer) { + std.mu.Lock() + defer std.mu.Unlock() + std.Out = out +} + +// SetFormatter sets the standard logger formatter. +func SetFormatter(formatter Formatter) { + std.mu.Lock() + defer std.mu.Unlock() + std.Formatter = formatter +} + +// SetLevel sets the standard logger level. +func SetLevel(level Level) { + std.mu.Lock() + defer std.mu.Unlock() + std.Level = level +} + +// GetLevel returns the standard logger level. +func GetLevel() Level { + std.mu.Lock() + defer std.mu.Unlock() + return std.Level +} + +// AddHook adds a hook to the standard logger hooks. +func AddHook(hook Hook) { + std.mu.Lock() + defer std.mu.Unlock() + std.Hooks.Add(hook) +} + +// WithField creates an entry from the standard logger and adds a field to +// it. If you want multiple fields, use `WithFields`. +// +// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal +// or Panic on the Entry it returns. +func WithField(key string, value interface{}) *Entry { + return std.WithField(key, value) +} + +// WithFields creates an entry from the standard logger and adds multiple +// fields to it. This is simply a helper for `WithField`, invoking it +// once for each field. +// +// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal +// or Panic on the Entry it returns. +func WithFields(fields Fields) *Entry { + return std.WithFields(fields) +} + +// Debug logs a message at level Debug on the standard logger. +func Debug(args ...interface{}) { + std.Debug(args...) +} + +// Print logs a message at level Info on the standard logger. +func Print(args ...interface{}) { + std.Print(args...) +} + +// Info logs a message at level Info on the standard logger. +func Info(args ...interface{}) { + std.Info(args...) +} + +// Warn logs a message at level Warn on the standard logger. +func Warn(args ...interface{}) { + std.Warn(args...) +} + +// Warning logs a message at level Warn on the standard logger. +func Warning(args ...interface{}) { + std.Warning(args...) +} + +// Error logs a message at level Error on the standard logger. +func Error(args ...interface{}) { + std.Error(args...) +} + +// Panic logs a message at level Panic on the standard logger. +func Panic(args ...interface{}) { + std.Panic(args...) +} + +// Fatal logs a message at level Fatal on the standard logger. +func Fatal(args ...interface{}) { + std.Fatal(args...) +} + +// Debugf logs a message at level Debug on the standard logger. +func Debugf(format string, args ...interface{}) { + std.Debugf(format, args...) +} + +// Printf logs a message at level Info on the standard logger. +func Printf(format string, args ...interface{}) { + std.Printf(format, args...) +} + +// Infof logs a message at level Info on the standard logger. +func Infof(format string, args ...interface{}) { + std.Infof(format, args...) +} + +// Warnf logs a message at level Warn on the standard logger. +func Warnf(format string, args ...interface{}) { + std.Warnf(format, args...) +} + +// Warningf logs a message at level Warn on the standard logger. +func Warningf(format string, args ...interface{}) { + std.Warningf(format, args...) +} + +// Errorf logs a message at level Error on the standard logger. +func Errorf(format string, args ...interface{}) { + std.Errorf(format, args...) +} + +// Panicf logs a message at level Panic on the standard logger. +func Panicf(format string, args ...interface{}) { + std.Panicf(format, args...) +} + +// Fatalf logs a message at level Fatal on the standard logger. +func Fatalf(format string, args ...interface{}) { + std.Fatalf(format, args...) +} + +// Debugln logs a message at level Debug on the standard logger. +func Debugln(args ...interface{}) { + std.Debugln(args...) +} + +// Println logs a message at level Info on the standard logger. +func Println(args ...interface{}) { + std.Println(args...) +} + +// Infoln logs a message at level Info on the standard logger. +func Infoln(args ...interface{}) { + std.Infoln(args...) +} + +// Warnln logs a message at level Warn on the standard logger. +func Warnln(args ...interface{}) { + std.Warnln(args...) +} + +// Warningln logs a message at level Warn on the standard logger. +func Warningln(args ...interface{}) { + std.Warningln(args...) +} + +// Errorln logs a message at level Error on the standard logger. +func Errorln(args ...interface{}) { + std.Errorln(args...) +} + +// Panicln logs a message at level Panic on the standard logger. +func Panicln(args ...interface{}) { + std.Panicln(args...) +} + +// Fatalln logs a message at level Fatal on the standard logger. +func Fatalln(args ...interface{}) { + std.Fatalln(args...) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/formatter.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/formatter.go new file mode 100644 index 0000000..104d689 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/formatter.go @@ -0,0 +1,48 @@ +package logrus + +import "time" + +const DefaultTimestampFormat = time.RFC3339 + +// The Formatter interface is used to implement a custom Formatter. It takes an +// `Entry`. It exposes all the fields, including the default ones: +// +// * `entry.Data["msg"]`. The message passed from Info, Warn, Error .. +// * `entry.Data["time"]`. The timestamp. +// * `entry.Data["level"]. The level the entry was logged at. +// +// Any additional fields added with `WithField` or `WithFields` are also in +// `entry.Data`. Format is expected to return an array of bytes which are then +// logged to `logger.Out`. +type Formatter interface { + Format(*Entry) ([]byte, error) +} + +// This is to not silently overwrite `time`, `msg` and `level` fields when +// dumping it. If this code wasn't there doing: +// +// logrus.WithField("level", 1).Info("hello") +// +// Would just silently drop the user provided level. Instead with this code +// it'll logged as: +// +// {"level": "info", "fields.level": 1, "msg": "hello", "time": "..."} +// +// It's not exported because it's still using Data in an opinionated way. It's to +// avoid code duplication between the two default formatters. +func prefixFieldClashes(data Fields) { + _, ok := data["time"] + if ok { + data["fields.time"] = data["time"] + } + + _, ok = data["msg"] + if ok { + data["fields.msg"] = data["msg"] + } + + _, ok = data["level"] + if ok { + data["fields.level"] = data["level"] + } +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/hooks.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/hooks.go new file mode 100644 index 0000000..3f151cd --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/hooks.go @@ -0,0 +1,34 @@ +package logrus + +// A hook to be fired when logging on the logging levels returned from +// `Levels()` on your implementation of the interface. Note that this is not +// fired in a goroutine or a channel with workers, you should handle such +// functionality yourself if your call is non-blocking and you don't wish for +// the logging calls for levels returned from `Levels()` to block. +type Hook interface { + Levels() []Level + Fire(*Entry) error +} + +// Internal type for storing the hooks on a logger instance. +type LevelHooks map[Level][]Hook + +// Add a hook to an instance of logger. This is called with +// `log.Hooks.Add(new(MyHook))` where `MyHook` implements the `Hook` interface. +func (hooks LevelHooks) Add(hook Hook) { + for _, level := range hook.Levels() { + hooks[level] = append(hooks[level], hook) + } +} + +// Fire all the hooks for the passed level. Used by `entry.log` to fire +// appropriate hooks for a log entry. +func (hooks LevelHooks) Fire(level Level, entry *Entry) error { + for _, hook := range hooks[level] { + if err := hook.Fire(entry); err != nil { + return err + } + } + + return nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/json_formatter.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/json_formatter.go new file mode 100644 index 0000000..2ad6dc5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/json_formatter.go @@ -0,0 +1,41 @@ +package logrus + +import ( + "encoding/json" + "fmt" +) + +type JSONFormatter struct { + // TimestampFormat sets the format used for marshaling timestamps. + TimestampFormat string +} + +func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) { + data := make(Fields, len(entry.Data)+3) + for k, v := range entry.Data { + switch v := v.(type) { + case error: + // Otherwise errors are ignored by `encoding/json` + // https://github.com/Sirupsen/logrus/issues/137 + data[k] = v.Error() + default: + data[k] = v + } + } + prefixFieldClashes(data) + + timestampFormat := f.TimestampFormat + if timestampFormat == "" { + timestampFormat = DefaultTimestampFormat + } + + data["time"] = entry.Time.Format(timestampFormat) + data["msg"] = entry.Message + data["level"] = entry.Level.String() + + serialized, err := json.Marshal(data) + if err != nil { + return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err) + } + return append(serialized, '\n'), nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/logger.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/logger.go new file mode 100644 index 0000000..e4974bf --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/logger.go @@ -0,0 +1,206 @@ +package logrus + +import ( + "io" + "os" + "sync" +) + +type Logger struct { + // The logs are `io.Copy`'d to this in a mutex. It's common to set this to a + // file, or leave it default which is `os.Stdout`. You can also set this to + // something more adventorous, such as logging to Kafka. + Out io.Writer + // Hooks for the logger instance. These allow firing events based on logging + // levels and log entries. For example, to send errors to an error tracking + // service, log to StatsD or dump the core on fatal errors. + Hooks LevelHooks + // All log entries pass through the formatter before logged to Out. The + // included formatters are `TextFormatter` and `JSONFormatter` for which + // TextFormatter is the default. In development (when a TTY is attached) it + // logs with colors, but to a file it wouldn't. You can easily implement your + // own that implements the `Formatter` interface, see the `README` or included + // formatters for examples. + Formatter Formatter + // The logging level the logger should log at. This is typically (and defaults + // to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be + // logged. `logrus.Debug` is useful in + Level Level + // Used to sync writing to the log. + mu sync.Mutex +} + +// Creates a new logger. Configuration should be set by changing `Formatter`, +// `Out` and `Hooks` directly on the default logger instance. You can also just +// instantiate your own: +// +// var log = &Logger{ +// Out: os.Stderr, +// Formatter: new(JSONFormatter), +// Hooks: make(LevelHooks), +// Level: logrus.DebugLevel, +// } +// +// It's recommended to make this a global instance called `log`. +func New() *Logger { + return &Logger{ + Out: os.Stderr, + Formatter: new(TextFormatter), + Hooks: make(LevelHooks), + Level: InfoLevel, + } +} + +// Adds a field to the log entry, note that you it doesn't log until you call +// Debug, Print, Info, Warn, Fatal or Panic. It only creates a log entry. +// Ff you want multiple fields, use `WithFields`. +func (logger *Logger) WithField(key string, value interface{}) *Entry { + return NewEntry(logger).WithField(key, value) +} + +// Adds a struct of fields to the log entry. All it does is call `WithField` for +// each `Field`. +func (logger *Logger) WithFields(fields Fields) *Entry { + return NewEntry(logger).WithFields(fields) +} + +func (logger *Logger) Debugf(format string, args ...interface{}) { + if logger.Level >= DebugLevel { + NewEntry(logger).Debugf(format, args...) + } +} + +func (logger *Logger) Infof(format string, args ...interface{}) { + if logger.Level >= InfoLevel { + NewEntry(logger).Infof(format, args...) + } +} + +func (logger *Logger) Printf(format string, args ...interface{}) { + NewEntry(logger).Printf(format, args...) +} + +func (logger *Logger) Warnf(format string, args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warnf(format, args...) + } +} + +func (logger *Logger) Warningf(format string, args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warnf(format, args...) + } +} + +func (logger *Logger) Errorf(format string, args ...interface{}) { + if logger.Level >= ErrorLevel { + NewEntry(logger).Errorf(format, args...) + } +} + +func (logger *Logger) Fatalf(format string, args ...interface{}) { + if logger.Level >= FatalLevel { + NewEntry(logger).Fatalf(format, args...) + } + os.Exit(1) +} + +func (logger *Logger) Panicf(format string, args ...interface{}) { + if logger.Level >= PanicLevel { + NewEntry(logger).Panicf(format, args...) + } +} + +func (logger *Logger) Debug(args ...interface{}) { + if logger.Level >= DebugLevel { + NewEntry(logger).Debug(args...) + } +} + +func (logger *Logger) Info(args ...interface{}) { + if logger.Level >= InfoLevel { + NewEntry(logger).Info(args...) + } +} + +func (logger *Logger) Print(args ...interface{}) { + NewEntry(logger).Info(args...) +} + +func (logger *Logger) Warn(args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warn(args...) + } +} + +func (logger *Logger) Warning(args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warn(args...) + } +} + +func (logger *Logger) Error(args ...interface{}) { + if logger.Level >= ErrorLevel { + NewEntry(logger).Error(args...) + } +} + +func (logger *Logger) Fatal(args ...interface{}) { + if logger.Level >= FatalLevel { + NewEntry(logger).Fatal(args...) + } + os.Exit(1) +} + +func (logger *Logger) Panic(args ...interface{}) { + if logger.Level >= PanicLevel { + NewEntry(logger).Panic(args...) + } +} + +func (logger *Logger) Debugln(args ...interface{}) { + if logger.Level >= DebugLevel { + NewEntry(logger).Debugln(args...) + } +} + +func (logger *Logger) Infoln(args ...interface{}) { + if logger.Level >= InfoLevel { + NewEntry(logger).Infoln(args...) + } +} + +func (logger *Logger) Println(args ...interface{}) { + NewEntry(logger).Println(args...) +} + +func (logger *Logger) Warnln(args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warnln(args...) + } +} + +func (logger *Logger) Warningln(args ...interface{}) { + if logger.Level >= WarnLevel { + NewEntry(logger).Warnln(args...) + } +} + +func (logger *Logger) Errorln(args ...interface{}) { + if logger.Level >= ErrorLevel { + NewEntry(logger).Errorln(args...) + } +} + +func (logger *Logger) Fatalln(args ...interface{}) { + if logger.Level >= FatalLevel { + NewEntry(logger).Fatalln(args...) + } + os.Exit(1) +} + +func (logger *Logger) Panicln(args ...interface{}) { + if logger.Level >= PanicLevel { + NewEntry(logger).Panicln(args...) + } +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/logrus.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/logrus.go new file mode 100644 index 0000000..43ee12e --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/logrus.go @@ -0,0 +1,94 @@ +package logrus + +import ( + "fmt" + "log" +) + +// Fields type, used to pass to `WithFields`. +type Fields map[string]interface{} + +// Level type +type Level uint8 + +// Convert the Level to a string. E.g. PanicLevel becomes "panic". +func (level Level) String() string { + switch level { + case DebugLevel: + return "debug" + case InfoLevel: + return "info" + case WarnLevel: + return "warning" + case ErrorLevel: + return "error" + case FatalLevel: + return "fatal" + case PanicLevel: + return "panic" + } + + return "unknown" +} + +// ParseLevel takes a string level and returns the Logrus log level constant. +func ParseLevel(lvl string) (Level, error) { + switch lvl { + case "panic": + return PanicLevel, nil + case "fatal": + return FatalLevel, nil + case "error": + return ErrorLevel, nil + case "warn", "warning": + return WarnLevel, nil + case "info": + return InfoLevel, nil + case "debug": + return DebugLevel, nil + } + + var l Level + return l, fmt.Errorf("not a valid logrus Level: %q", lvl) +} + +// These are the different logging levels. You can set the logging level to log +// on your instance of logger, obtained with `logrus.New()`. +const ( + // PanicLevel level, highest level of severity. Logs and then calls panic with the + // message passed to Debug, Info, ... + PanicLevel Level = iota + // FatalLevel level. Logs and then calls `os.Exit(1)`. It will exit even if the + // logging level is set to Panic. + FatalLevel + // ErrorLevel level. Logs. Used for errors that should definitely be noted. + // Commonly used for hooks to send errors to an error tracking service. + ErrorLevel + // WarnLevel level. Non-critical entries that deserve eyes. + WarnLevel + // InfoLevel level. General operational entries about what's going on inside the + // application. + InfoLevel + // DebugLevel level. Usually only enabled when debugging. Very verbose logging. + DebugLevel +) + +// Won't compile if StdLogger can't be realized by a log.Logger +var _ StdLogger = &log.Logger{} + +// StdLogger is what your logrus-enabled library should take, that way +// it'll accept a stdlib logger and a logrus logger. There's no standard +// interface, this is the closest we get, unfortunately. +type StdLogger interface { + Print(...interface{}) + Printf(string, ...interface{}) + Println(...interface{}) + + Fatal(...interface{}) + Fatalf(string, ...interface{}) + Fatalln(...interface{}) + + Panic(...interface{}) + Panicf(string, ...interface{}) + Panicln(...interface{}) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_bsd.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_bsd.go new file mode 100644 index 0000000..71f8d67 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_bsd.go @@ -0,0 +1,9 @@ +// +build darwin freebsd openbsd netbsd dragonfly + +package logrus + +import "syscall" + +const ioctlReadTermios = syscall.TIOCGETA + +type Termios syscall.Termios diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_freebsd.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_freebsd.go new file mode 100644 index 0000000..0428ee5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_freebsd.go @@ -0,0 +1,20 @@ +/* + Go 1.2 doesn't include Termios for FreeBSD. This should be added in 1.3 and this could be merged with terminal_darwin. +*/ +package logrus + +import ( + "syscall" +) + +const ioctlReadTermios = syscall.TIOCGETA + +type Termios struct { + Iflag uint32 + Oflag uint32 + Cflag uint32 + Lflag uint32 + Cc [20]uint8 + Ispeed uint32 + Ospeed uint32 +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_linux.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_linux.go new file mode 100644 index 0000000..a2c0b40 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_linux.go @@ -0,0 +1,12 @@ +// Based on ssh/terminal: +// Copyright 2013 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package logrus + +import "syscall" + +const ioctlReadTermios = syscall.TCGETS + +type Termios syscall.Termios diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_notwindows.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_notwindows.go new file mode 100644 index 0000000..b8bebc1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_notwindows.go @@ -0,0 +1,21 @@ +// Based on ssh/terminal: +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build linux darwin freebsd openbsd + +package logrus + +import ( + "syscall" + "unsafe" +) + +// IsTerminal returns true if the given file descriptor is a terminal. +func IsTerminal() bool { + fd := syscall.Stdout + var termios Termios + _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0) + return err == 0 +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_openbsd.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_openbsd.go new file mode 100644 index 0000000..af609a5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_openbsd.go @@ -0,0 +1,7 @@ +package logrus + +import "syscall" + +const ioctlReadTermios = syscall.TIOCGETA + +type Termios syscall.Termios diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_windows.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_windows.go new file mode 100644 index 0000000..2e09f6f --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/terminal_windows.go @@ -0,0 +1,27 @@ +// Based on ssh/terminal: +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build windows + +package logrus + +import ( + "syscall" + "unsafe" +) + +var kernel32 = syscall.NewLazyDLL("kernel32.dll") + +var ( + procGetConsoleMode = kernel32.NewProc("GetConsoleMode") +) + +// IsTerminal returns true if the given file descriptor is a terminal. +func IsTerminal() bool { + fd := syscall.Stdout + var st uint32 + r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(fd), uintptr(unsafe.Pointer(&st)), 0) + return r != 0 && e == 0 +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/text_formatter.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/text_formatter.go new file mode 100644 index 0000000..2e6fe1b --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/text_formatter.go @@ -0,0 +1,158 @@ +package logrus + +import ( + "bytes" + "fmt" + "runtime" + "sort" + "strings" + "time" +) + +const ( + nocolor = 0 + red = 31 + green = 32 + yellow = 33 + blue = 34 + gray = 37 +) + +var ( + baseTimestamp time.Time + isTerminal bool +) + +func init() { + baseTimestamp = time.Now() + isTerminal = IsTerminal() +} + +func miniTS() int { + return int(time.Since(baseTimestamp) / time.Second) +} + +type TextFormatter struct { + // Set to true to bypass checking for a TTY before outputting colors. + ForceColors bool + + // Force disabling colors. + DisableColors bool + + // Disable timestamp logging. useful when output is redirected to logging + // system that already adds timestamps. + DisableTimestamp bool + + // Enable logging the full timestamp when a TTY is attached instead of just + // the time passed since beginning of execution. + FullTimestamp bool + + // TimestampFormat to use for display when a full timestamp is printed + TimestampFormat string + + // The fields are sorted by default for a consistent output. For applications + // that log extremely frequently and don't use the JSON formatter this may not + // be desired. + DisableSorting bool +} + +func (f *TextFormatter) Format(entry *Entry) ([]byte, error) { + var keys []string = make([]string, 0, len(entry.Data)) + for k := range entry.Data { + keys = append(keys, k) + } + + if !f.DisableSorting { + sort.Strings(keys) + } + + b := &bytes.Buffer{} + + prefixFieldClashes(entry.Data) + + isColorTerminal := isTerminal && (runtime.GOOS != "windows") + isColored := (f.ForceColors || isColorTerminal) && !f.DisableColors + + if f.TimestampFormat == "" { + f.TimestampFormat = DefaultTimestampFormat + } + if isColored { + f.printColored(b, entry, keys) + } else { + if !f.DisableTimestamp { + f.appendKeyValue(b, "time", entry.Time.Format(f.TimestampFormat)) + } + f.appendKeyValue(b, "level", entry.Level.String()) + f.appendKeyValue(b, "msg", entry.Message) + for _, key := range keys { + f.appendKeyValue(b, key, entry.Data[key]) + } + } + + b.WriteByte('\n') + return b.Bytes(), nil +} + +func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []string) { + var levelColor int + switch entry.Level { + case DebugLevel: + levelColor = gray + case WarnLevel: + levelColor = yellow + case ErrorLevel, FatalLevel, PanicLevel: + levelColor = red + default: + levelColor = blue + } + + levelText := strings.ToUpper(entry.Level.String())[0:4] + + if !f.FullTimestamp { + fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, miniTS(), entry.Message) + } else { + fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ", levelColor, levelText, entry.Time.Format(f.TimestampFormat), entry.Message) + } + for _, k := range keys { + v := entry.Data[k] + fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=%v", levelColor, k, v) + } +} + +func needsQuoting(text string) bool { + for _, ch := range text { + if !((ch >= 'a' && ch <= 'z') || + (ch >= 'A' && ch <= 'Z') || + (ch >= '0' && ch <= '9') || + ch == '-' || ch == '.') { + return false + } + } + return true +} + +func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key string, value interface{}) { + + b.WriteString(key) + b.WriteByte('=') + + switch value := value.(type) { + case string: + if needsQuoting(value) { + b.WriteString(value) + } else { + fmt.Fprintf(b, "%q", value) + } + case error: + errmsg := value.Error() + if needsQuoting(errmsg) { + b.WriteString(errmsg) + } else { + fmt.Fprintf(b, "%q", value) + } + default: + fmt.Fprint(b, value) + } + + b.WriteByte(' ') +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/writer.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/writer.go new file mode 100644 index 0000000..1e30b1c --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus/writer.go @@ -0,0 +1,31 @@ +package logrus + +import ( + "bufio" + "io" + "runtime" +) + +func (logger *Logger) Writer() *io.PipeWriter { + reader, writer := io.Pipe() + + go logger.writerScanner(reader) + runtime.SetFinalizer(writer, writerFinalizer) + + return writer +} + +func (logger *Logger) writerScanner(reader *io.PipeReader) { + scanner := bufio.NewScanner(reader) + for scanner.Scan() { + logger.Print(scanner.Text()) + } + if err := scanner.Err(); err != nil { + logger.Errorf("Error while reading from Writer: %s", err) + } + reader.Close() +} + +func writerFinalizer(writer *io.PipeWriter) { + writer.Close() +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/envfile.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/envfile.go new file mode 100644 index 0000000..b854227 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/envfile.go @@ -0,0 +1,62 @@ +package opts + +import ( + "bufio" + "fmt" + "os" + "regexp" + "strings" +) + +var ( + // EnvironmentVariableRegexp A regexp to validate correct environment variables + // Environment variables set by the user must have a name consisting solely of + // alphabetics, numerics, and underscores - the first of which must not be numeric. + EnvironmentVariableRegexp = regexp.MustCompile("^[[:alpha:]_][[:alpha:][:digit:]_]*$") +) + +// ParseEnvFile Read in a line delimited file with environment variables enumerated +func ParseEnvFile(filename string) ([]string, error) { + fh, err := os.Open(filename) + if err != nil { + return []string{}, err + } + defer fh.Close() + + lines := []string{} + scanner := bufio.NewScanner(fh) + for scanner.Scan() { + line := scanner.Text() + // line is not empty, and not starting with '#' + if len(line) > 0 && !strings.HasPrefix(line, "#") { + data := strings.SplitN(line, "=", 2) + + // trim the front of a variable, but nothing else + variable := strings.TrimLeft(data[0], whiteSpaces) + + if !EnvironmentVariableRegexp.MatchString(variable) { + return []string{}, ErrBadEnvVariable{fmt.Sprintf("variable '%s' is not a valid environment variable", variable)} + } + if len(data) > 1 { + + // pass the value through, no trimming + lines = append(lines, fmt.Sprintf("%s=%s", variable, data[1])) + } else { + // if only a pass-through variable is given, clean it up. + lines = append(lines, fmt.Sprintf("%s=%s", strings.TrimSpace(line), os.Getenv(line))) + } + } + } + return lines, scanner.Err() +} + +var whiteSpaces = " \t" + +// ErrBadEnvVariable typed error for bad environment variable +type ErrBadEnvVariable struct { + msg string +} + +func (e ErrBadEnvVariable) Error() string { + return fmt.Sprintf("poorly formatted environment: %s", e.msg) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/hosts_unix.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/hosts_unix.go new file mode 100644 index 0000000..a29335e --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/hosts_unix.go @@ -0,0 +1,7 @@ +// +build !windows + +package opts + +import "fmt" + +var DefaultHost = fmt.Sprintf("unix://%s", DefaultUnixSocket) diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/hosts_windows.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/hosts_windows.go new file mode 100644 index 0000000..55eac2a --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/hosts_windows.go @@ -0,0 +1,7 @@ +// +build windows + +package opts + +import "fmt" + +var DefaultHost = fmt.Sprintf("tcp://%s:%d", DefaultHTTPHost, DefaultHTTPPort) diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/ip.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/ip.go new file mode 100644 index 0000000..b1f9587 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/ip.go @@ -0,0 +1,35 @@ +package opts + +import ( + "fmt" + "net" +) + +// IpOpt type that hold an IP +type IpOpt struct { + *net.IP +} + +func NewIpOpt(ref *net.IP, defaultVal string) *IpOpt { + o := &IpOpt{ + IP: ref, + } + o.Set(defaultVal) + return o +} + +func (o *IpOpt) Set(val string) error { + ip := net.ParseIP(val) + if ip == nil { + return fmt.Errorf("%s is not an ip address", val) + } + *o.IP = ip + return nil +} + +func (o *IpOpt) String() string { + if *o.IP == nil { + return "" + } + return o.IP.String() +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/opts.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/opts.go new file mode 100644 index 0000000..aa409b9 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/opts.go @@ -0,0 +1,323 @@ +package opts + +import ( + "fmt" + "net" + "os" + "path" + "regexp" + "strings" + + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/parsers" + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/volume" +) + +var ( + alphaRegexp = regexp.MustCompile(`[a-zA-Z]`) + domainRegexp = regexp.MustCompile(`^(:?(:?[a-zA-Z0-9]|(:?[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9]))(:?\.(:?[a-zA-Z0-9]|(:?[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])))*)\.?\s*$`) + // DefaultHTTPHost Default HTTP Host used if only port is provided to -H flag e.g. docker -d -H tcp://:8080 + DefaultHTTPHost = "127.0.0.1" + // DefaultHTTPPort Default HTTP Port used if only the protocol is provided to -H flag e.g. docker -d -H tcp:// + // TODO Windows. DefaultHTTPPort is only used on Windows if a -H parameter + // is not supplied. A better longer term solution would be to use a named + // pipe as the default on the Windows daemon. + DefaultHTTPPort = 2375 // Default HTTP Port + // DefaultUnixSocket Path for the unix socket. + // Docker daemon by default always listens on the default unix socket + DefaultUnixSocket = "/var/run/docker.sock" +) + +// ListOpts type that hold a list of values and a validation function. +type ListOpts struct { + values *[]string + validator ValidatorFctType +} + +// NewListOpts Create a new ListOpts with the specified validator. +func NewListOpts(validator ValidatorFctType) ListOpts { + var values []string + return *NewListOptsRef(&values, validator) +} + +func NewListOptsRef(values *[]string, validator ValidatorFctType) *ListOpts { + return &ListOpts{ + values: values, + validator: validator, + } +} + +func (opts *ListOpts) String() string { + return fmt.Sprintf("%v", []string((*opts.values))) +} + +// Set validates if needed the input value and add it to the +// internal slice. +func (opts *ListOpts) Set(value string) error { + if opts.validator != nil { + v, err := opts.validator(value) + if err != nil { + return err + } + value = v + } + (*opts.values) = append((*opts.values), value) + return nil +} + +// Delete remove the given element from the slice. +func (opts *ListOpts) Delete(key string) { + for i, k := range *opts.values { + if k == key { + (*opts.values) = append((*opts.values)[:i], (*opts.values)[i+1:]...) + return + } + } +} + +// GetMap returns the content of values in a map in order to avoid +// duplicates. +// FIXME: can we remove this? +func (opts *ListOpts) GetMap() map[string]struct{} { + ret := make(map[string]struct{}) + for _, k := range *opts.values { + ret[k] = struct{}{} + } + return ret +} + +// GetAll returns the values' slice. +// FIXME: Can we remove this? +func (opts *ListOpts) GetAll() []string { + return (*opts.values) +} + +// Get checks the existence of the given key. +func (opts *ListOpts) Get(key string) bool { + for _, k := range *opts.values { + if k == key { + return true + } + } + return false +} + +// Len returns the amount of element in the slice. +func (opts *ListOpts) Len() int { + return len((*opts.values)) +} + +//MapOpts type that holds a map of values and a validation function. +type MapOpts struct { + values map[string]string + validator ValidatorFctType +} + +// Set validates if needed the input value and add it to the +// internal map, by splitting on '='. +func (opts *MapOpts) Set(value string) error { + if opts.validator != nil { + v, err := opts.validator(value) + if err != nil { + return err + } + value = v + } + vals := strings.SplitN(value, "=", 2) + if len(vals) == 1 { + (opts.values)[vals[0]] = "" + } else { + (opts.values)[vals[0]] = vals[1] + } + return nil +} + +func (opts *MapOpts) String() string { + return fmt.Sprintf("%v", map[string]string((opts.values))) +} + +func NewMapOpts(values map[string]string, validator ValidatorFctType) *MapOpts { + if values == nil { + values = make(map[string]string) + } + return &MapOpts{ + values: values, + validator: validator, + } +} + +// ValidatorFctType validator that return a validate string and/or an error +type ValidatorFctType func(val string) (string, error) + +// ValidatorFctListType validator that return a validate list of string and/or an error +type ValidatorFctListType func(val string) ([]string, error) + +// ValidateAttach Validates that the specified string is a valid attach option. +func ValidateAttach(val string) (string, error) { + s := strings.ToLower(val) + for _, str := range []string{"stdin", "stdout", "stderr"} { + if s == str { + return s, nil + } + } + return val, fmt.Errorf("valid streams are STDIN, STDOUT and STDERR") +} + +// ValidateLink Validates that the specified string has a valid link format (containerName:alias). +func ValidateLink(val string) (string, error) { + if _, _, err := parsers.ParseLink(val); err != nil { + return val, err + } + return val, nil +} + +// ValidateDevice Validate a path for devices +// It will make sure 'val' is in the form: +// [host-dir:]container-path[:mode] +func ValidateDevice(val string) (string, error) { + return validatePath(val, false) +} + +// ValidatePath Validate a path for volumes +// It will make sure 'val' is in the form: +// [host-dir:]container-path[:rw|ro] +// It will also validate the mount mode. +func ValidatePath(val string) (string, error) { + return validatePath(val, true) +} + +func validatePath(val string, validateMountMode bool) (string, error) { + var containerPath string + var mode string + + if strings.Count(val, ":") > 2 { + return val, fmt.Errorf("bad format for volumes: %s", val) + } + + splited := strings.SplitN(val, ":", 3) + if splited[0] == "" { + return val, fmt.Errorf("bad format for volumes: %s", val) + } + switch len(splited) { + case 1: + containerPath = splited[0] + val = path.Clean(containerPath) + case 2: + if isValid, _ := volume.ValidateMountMode(splited[1]); validateMountMode && isValid { + containerPath = splited[0] + mode = splited[1] + val = fmt.Sprintf("%s:%s", path.Clean(containerPath), mode) + } else { + containerPath = splited[1] + val = fmt.Sprintf("%s:%s", splited[0], path.Clean(containerPath)) + } + case 3: + containerPath = splited[1] + mode = splited[2] + if isValid, _ := volume.ValidateMountMode(splited[2]); validateMountMode && !isValid { + return val, fmt.Errorf("bad mount mode specified : %s", mode) + } + val = fmt.Sprintf("%s:%s:%s", splited[0], containerPath, mode) + } + + if !path.IsAbs(containerPath) { + return val, fmt.Errorf("%s is not an absolute path", containerPath) + } + return val, nil +} + +// ValidateEnv Validate an environment variable and returns it +// It will use EnvironmentVariableRegexp to ensure the name of the environment variable is valid. +// If no value is specified, it returns the current value using os.Getenv. +func ValidateEnv(val string) (string, error) { + arr := strings.Split(val, "=") + if len(arr) > 1 { + return val, nil + } + if !EnvironmentVariableRegexp.MatchString(arr[0]) { + return val, ErrBadEnvVariable{fmt.Sprintf("variable '%s' is not a valid environment variable", val)} + } + if !doesEnvExist(val) { + return val, nil + } + return fmt.Sprintf("%s=%s", val, os.Getenv(val)), nil +} + +// ValidateIPAddress Validates an Ip address +func ValidateIPAddress(val string) (string, error) { + var ip = net.ParseIP(strings.TrimSpace(val)) + if ip != nil { + return ip.String(), nil + } + return "", fmt.Errorf("%s is not an ip address", val) +} + +// ValidateMACAddress Validates a MAC address +func ValidateMACAddress(val string) (string, error) { + _, err := net.ParseMAC(strings.TrimSpace(val)) + if err != nil { + return "", err + } + return val, nil +} + +// ValidateDNSSearch Validates domain for resolvconf search configuration. +// A zero length domain is represented by . +func ValidateDNSSearch(val string) (string, error) { + if val = strings.Trim(val, " "); val == "." { + return val, nil + } + return validateDomain(val) +} + +func validateDomain(val string) (string, error) { + if alphaRegexp.FindString(val) == "" { + return "", fmt.Errorf("%s is not a valid domain", val) + } + ns := domainRegexp.FindSubmatch([]byte(val)) + if len(ns) > 0 && len(ns[1]) < 255 { + return string(ns[1]), nil + } + return "", fmt.Errorf("%s is not a valid domain", val) +} + +// ValidateExtraHost Validate that the given string is a valid extrahost and returns it +// ExtraHost are in the form of name:ip where the ip has to be a valid ip (ipv4 or ipv6) +func ValidateExtraHost(val string) (string, error) { + // allow for IPv6 addresses in extra hosts by only splitting on first ":" + arr := strings.SplitN(val, ":", 2) + if len(arr) != 2 || len(arr[0]) == 0 { + return "", fmt.Errorf("bad format for add-host: %q", val) + } + if _, err := ValidateIPAddress(arr[1]); err != nil { + return "", fmt.Errorf("invalid IP address in add-host: %q", arr[1]) + } + return val, nil +} + +// ValidateLabel Validate that the given string is a valid label, and returns it +// Labels are in the form on key=value +func ValidateLabel(val string) (string, error) { + if strings.Count(val, "=") < 1 { + return "", fmt.Errorf("bad attribute format: %s", val) + } + return val, nil +} + +// ValidateHost Validate that the given string is a valid host and returns it +func ValidateHost(val string) (string, error) { + host, err := parsers.ParseHost(DefaultHTTPHost, DefaultUnixSocket, val) + if err != nil { + return val, err + } + return host, nil +} + +func doesEnvExist(name string) bool { + for _, entry := range os.Environ() { + parts := strings.SplitN(entry, "=", 2) + if parts[0] == name { + return true + } + } + return false +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/ulimit.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/ulimit.go new file mode 100644 index 0000000..54f6c4e --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/opts/ulimit.go @@ -0,0 +1,47 @@ +package opts + +import ( + "fmt" + + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ulimit" +) + +type UlimitOpt struct { + values *map[string]*ulimit.Ulimit +} + +func NewUlimitOpt(ref *map[string]*ulimit.Ulimit) *UlimitOpt { + if ref == nil { + ref = &map[string]*ulimit.Ulimit{} + } + return &UlimitOpt{ref} +} + +func (o *UlimitOpt) Set(val string) error { + l, err := ulimit.Parse(val) + if err != nil { + return err + } + + (*o.values)[l.Name] = l + + return nil +} + +func (o *UlimitOpt) String() string { + var out []string + for _, v := range *o.values { + out = append(out, v.String()) + } + + return fmt.Sprintf("%v", out) +} + +func (o *UlimitOpt) GetList() []*ulimit.Ulimit { + var ulimits []*ulimit.Ulimit + for _, v := range *o.values { + ulimits = append(ulimits, v) + } + + return ulimits +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/README.md b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/README.md new file mode 100644 index 0000000..7307d96 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/README.md @@ -0,0 +1 @@ +This code provides helper functions for dealing with archive files. diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/archive.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/archive.go new file mode 100644 index 0000000..7306840 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/archive.go @@ -0,0 +1,902 @@ +package archive + +import ( + "archive/tar" + "bufio" + "bytes" + "compress/bzip2" + "compress/gzip" + "errors" + "fmt" + "io" + "io/ioutil" + "os" + "os/exec" + "path/filepath" + "runtime" + "strings" + "syscall" + + "github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus" + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/fileutils" + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/pools" + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/promise" + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system" +) + +type ( + Archive io.ReadCloser + ArchiveReader io.Reader + Compression int + TarChownOptions struct { + UID, GID int + } + TarOptions struct { + IncludeFiles []string + ExcludePatterns []string + Compression Compression + NoLchown bool + ChownOpts *TarChownOptions + Name string + IncludeSourceDir bool + // When unpacking, specifies whether overwriting a directory with a + // non-directory is allowed and vice versa. + NoOverwriteDirNonDir bool + } + + // Archiver allows the reuse of most utility functions of this package + // with a pluggable Untar function. + Archiver struct { + Untar func(io.Reader, string, *TarOptions) error + } + + // breakoutError is used to differentiate errors related to breaking out + // When testing archive breakout in the unit tests, this error is expected + // in order for the test to pass. + breakoutError error +) + +var ( + ErrNotImplemented = errors.New("Function not implemented") + defaultArchiver = &Archiver{Untar} +) + +const ( + Uncompressed Compression = iota + Bzip2 + Gzip + Xz +) + +func IsArchive(header []byte) bool { + compression := DetectCompression(header) + if compression != Uncompressed { + return true + } + r := tar.NewReader(bytes.NewBuffer(header)) + _, err := r.Next() + return err == nil +} + +func DetectCompression(source []byte) Compression { + for compression, m := range map[Compression][]byte{ + Bzip2: {0x42, 0x5A, 0x68}, + Gzip: {0x1F, 0x8B, 0x08}, + Xz: {0xFD, 0x37, 0x7A, 0x58, 0x5A, 0x00}, + } { + if len(source) < len(m) { + logrus.Debugf("Len too short") + continue + } + if bytes.Compare(m, source[:len(m)]) == 0 { + return compression + } + } + return Uncompressed +} + +func xzDecompress(archive io.Reader) (io.ReadCloser, error) { + args := []string{"xz", "-d", "-c", "-q"} + + return CmdStream(exec.Command(args[0], args[1:]...), archive) +} + +func DecompressStream(archive io.Reader) (io.ReadCloser, error) { + p := pools.BufioReader32KPool + buf := p.Get(archive) + bs, err := buf.Peek(10) + if err != nil { + return nil, err + } + + compression := DetectCompression(bs) + switch compression { + case Uncompressed: + readBufWrapper := p.NewReadCloserWrapper(buf, buf) + return readBufWrapper, nil + case Gzip: + gzReader, err := gzip.NewReader(buf) + if err != nil { + return nil, err + } + readBufWrapper := p.NewReadCloserWrapper(buf, gzReader) + return readBufWrapper, nil + case Bzip2: + bz2Reader := bzip2.NewReader(buf) + readBufWrapper := p.NewReadCloserWrapper(buf, bz2Reader) + return readBufWrapper, nil + case Xz: + xzReader, err := xzDecompress(buf) + if err != nil { + return nil, err + } + readBufWrapper := p.NewReadCloserWrapper(buf, xzReader) + return readBufWrapper, nil + default: + return nil, fmt.Errorf("Unsupported compression format %s", (&compression).Extension()) + } +} + +func CompressStream(dest io.WriteCloser, compression Compression) (io.WriteCloser, error) { + p := pools.BufioWriter32KPool + buf := p.Get(dest) + switch compression { + case Uncompressed: + writeBufWrapper := p.NewWriteCloserWrapper(buf, buf) + return writeBufWrapper, nil + case Gzip: + gzWriter := gzip.NewWriter(dest) + writeBufWrapper := p.NewWriteCloserWrapper(buf, gzWriter) + return writeBufWrapper, nil + case Bzip2, Xz: + // archive/bzip2 does not support writing, and there is no xz support at all + // However, this is not a problem as docker only currently generates gzipped tars + return nil, fmt.Errorf("Unsupported compression format %s", (&compression).Extension()) + default: + return nil, fmt.Errorf("Unsupported compression format %s", (&compression).Extension()) + } +} + +func (compression *Compression) Extension() string { + switch *compression { + case Uncompressed: + return "tar" + case Bzip2: + return "tar.bz2" + case Gzip: + return "tar.gz" + case Xz: + return "tar.xz" + } + return "" +} + +type tarAppender struct { + TarWriter *tar.Writer + Buffer *bufio.Writer + + // for hardlink mapping + SeenFiles map[uint64]string +} + +// canonicalTarName provides a platform-independent and consistent posix-style +//path for files and directories to be archived regardless of the platform. +func canonicalTarName(name string, isDir bool) (string, error) { + name, err := CanonicalTarNameForPath(name) + if err != nil { + return "", err + } + + // suffix with '/' for directories + if isDir && !strings.HasSuffix(name, "/") { + name += "/" + } + return name, nil +} + +func (ta *tarAppender) addTarFile(path, name string) error { + fi, err := os.Lstat(path) + if err != nil { + return err + } + + link := "" + if fi.Mode()&os.ModeSymlink != 0 { + if link, err = os.Readlink(path); err != nil { + return err + } + } + + hdr, err := tar.FileInfoHeader(fi, link) + if err != nil { + return err + } + hdr.Mode = int64(chmodTarEntry(os.FileMode(hdr.Mode))) + + name, err = canonicalTarName(name, fi.IsDir()) + if err != nil { + return fmt.Errorf("tar: cannot canonicalize path: %v", err) + } + hdr.Name = name + + nlink, inode, err := setHeaderForSpecialDevice(hdr, ta, name, fi.Sys()) + if err != nil { + return err + } + + // if it's a regular file and has more than 1 link, + // it's hardlinked, so set the type flag accordingly + if fi.Mode().IsRegular() && nlink > 1 { + // a link should have a name that it links too + // and that linked name should be first in the tar archive + if oldpath, ok := ta.SeenFiles[inode]; ok { + hdr.Typeflag = tar.TypeLink + hdr.Linkname = oldpath + hdr.Size = 0 // This Must be here for the writer math to add up! + } else { + ta.SeenFiles[inode] = name + } + } + + capability, _ := system.Lgetxattr(path, "security.capability") + if capability != nil { + hdr.Xattrs = make(map[string]string) + hdr.Xattrs["security.capability"] = string(capability) + } + + if err := ta.TarWriter.WriteHeader(hdr); err != nil { + return err + } + + if hdr.Typeflag == tar.TypeReg { + file, err := os.Open(path) + if err != nil { + return err + } + + ta.Buffer.Reset(ta.TarWriter) + defer ta.Buffer.Reset(nil) + _, err = io.Copy(ta.Buffer, file) + file.Close() + if err != nil { + return err + } + err = ta.Buffer.Flush() + if err != nil { + return err + } + } + + return nil +} + +func createTarFile(path, extractDir string, hdr *tar.Header, reader io.Reader, Lchown bool, chownOpts *TarChownOptions) error { + // hdr.Mode is in linux format, which we can use for sycalls, + // but for os.Foo() calls we need the mode converted to os.FileMode, + // so use hdrInfo.Mode() (they differ for e.g. setuid bits) + hdrInfo := hdr.FileInfo() + + switch hdr.Typeflag { + case tar.TypeDir: + // Create directory unless it exists as a directory already. + // In that case we just want to merge the two + if fi, err := os.Lstat(path); !(err == nil && fi.IsDir()) { + if err := os.Mkdir(path, hdrInfo.Mode()); err != nil { + return err + } + } + + case tar.TypeReg, tar.TypeRegA: + // Source is regular file + file, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY, hdrInfo.Mode()) + if err != nil { + return err + } + if _, err := io.Copy(file, reader); err != nil { + file.Close() + return err + } + file.Close() + + case tar.TypeBlock, tar.TypeChar, tar.TypeFifo: + // Handle this is an OS-specific way + if err := handleTarTypeBlockCharFifo(hdr, path); err != nil { + return err + } + + case tar.TypeLink: + targetPath := filepath.Join(extractDir, hdr.Linkname) + // check for hardlink breakout + if !strings.HasPrefix(targetPath, extractDir) { + return breakoutError(fmt.Errorf("invalid hardlink %q -> %q", targetPath, hdr.Linkname)) + } + if err := os.Link(targetPath, path); err != nil { + return err + } + + case tar.TypeSymlink: + // path -> hdr.Linkname = targetPath + // e.g. /extractDir/path/to/symlink -> ../2/file = /extractDir/path/2/file + targetPath := filepath.Join(filepath.Dir(path), hdr.Linkname) + + // the reason we don't need to check symlinks in the path (with FollowSymlinkInScope) is because + // that symlink would first have to be created, which would be caught earlier, at this very check: + if !strings.HasPrefix(targetPath, extractDir) { + return breakoutError(fmt.Errorf("invalid symlink %q -> %q", path, hdr.Linkname)) + } + if err := os.Symlink(hdr.Linkname, path); err != nil { + return err + } + + case tar.TypeXGlobalHeader: + logrus.Debugf("PAX Global Extended Headers found and ignored") + return nil + + default: + return fmt.Errorf("Unhandled tar header type %d\n", hdr.Typeflag) + } + + // Lchown is not supported on Windows. + if Lchown && runtime.GOOS != "windows" { + if chownOpts == nil { + chownOpts = &TarChownOptions{UID: hdr.Uid, GID: hdr.Gid} + } + if err := os.Lchown(path, chownOpts.UID, chownOpts.GID); err != nil { + return err + } + } + + for key, value := range hdr.Xattrs { + if err := system.Lsetxattr(path, key, []byte(value), 0); err != nil { + return err + } + } + + // There is no LChmod, so ignore mode for symlink. Also, this + // must happen after chown, as that can modify the file mode + if err := handleLChmod(hdr, path, hdrInfo); err != nil { + return err + } + + ts := []syscall.Timespec{timeToTimespec(hdr.AccessTime), timeToTimespec(hdr.ModTime)} + // syscall.UtimesNano doesn't support a NOFOLLOW flag atm + if hdr.Typeflag == tar.TypeLink { + if fi, err := os.Lstat(hdr.Linkname); err == nil && (fi.Mode()&os.ModeSymlink == 0) { + if err := system.UtimesNano(path, ts); err != nil && err != system.ErrNotSupportedPlatform { + return err + } + } + } else if hdr.Typeflag != tar.TypeSymlink { + if err := system.UtimesNano(path, ts); err != nil && err != system.ErrNotSupportedPlatform { + return err + } + } else { + if err := system.LUtimesNano(path, ts); err != nil && err != system.ErrNotSupportedPlatform { + return err + } + } + return nil +} + +// Tar creates an archive from the directory at `path`, and returns it as a +// stream of bytes. +func Tar(path string, compression Compression) (io.ReadCloser, error) { + return TarWithOptions(path, &TarOptions{Compression: compression}) +} + +// TarWithOptions creates an archive from the directory at `path`, only including files whose relative +// paths are included in `options.IncludeFiles` (if non-nil) or not in `options.ExcludePatterns`. +func TarWithOptions(srcPath string, options *TarOptions) (io.ReadCloser, error) { + + patterns, patDirs, exceptions, err := fileutils.CleanPatterns(options.ExcludePatterns) + + if err != nil { + return nil, err + } + + pipeReader, pipeWriter := io.Pipe() + + compressWriter, err := CompressStream(pipeWriter, options.Compression) + if err != nil { + return nil, err + } + + go func() { + ta := &tarAppender{ + TarWriter: tar.NewWriter(compressWriter), + Buffer: pools.BufioWriter32KPool.Get(nil), + SeenFiles: make(map[uint64]string), + } + + defer func() { + // Make sure to check the error on Close. + if err := ta.TarWriter.Close(); err != nil { + logrus.Debugf("Can't close tar writer: %s", err) + } + if err := compressWriter.Close(); err != nil { + logrus.Debugf("Can't close compress writer: %s", err) + } + if err := pipeWriter.Close(); err != nil { + logrus.Debugf("Can't close pipe writer: %s", err) + } + }() + + // this buffer is needed for the duration of this piped stream + defer pools.BufioWriter32KPool.Put(ta.Buffer) + + // In general we log errors here but ignore them because + // during e.g. a diff operation the container can continue + // mutating the filesystem and we can see transient errors + // from this + + stat, err := os.Lstat(srcPath) + if err != nil { + return + } + + if !stat.IsDir() { + // We can't later join a non-dir with any includes because the + // 'walk' will error if "file/." is stat-ed and "file" is not a + // directory. So, we must split the source path and use the + // basename as the include. + if len(options.IncludeFiles) > 0 { + logrus.Warn("Tar: Can't archive a file with includes") + } + + dir, base := SplitPathDirEntry(srcPath) + srcPath = dir + options.IncludeFiles = []string{base} + } + + if len(options.IncludeFiles) == 0 { + options.IncludeFiles = []string{"."} + } + + seen := make(map[string]bool) + + var renamedRelFilePath string // For when tar.Options.Name is set + for _, include := range options.IncludeFiles { + // We can't use filepath.Join(srcPath, include) because this will + // clean away a trailing "." or "/" which may be important. + walkRoot := strings.Join([]string{srcPath, include}, string(filepath.Separator)) + filepath.Walk(walkRoot, func(filePath string, f os.FileInfo, err error) error { + if err != nil { + logrus.Debugf("Tar: Can't stat file %s to tar: %s", srcPath, err) + return nil + } + + relFilePath, err := filepath.Rel(srcPath, filePath) + if err != nil || (!options.IncludeSourceDir && relFilePath == "." && f.IsDir()) { + // Error getting relative path OR we are looking + // at the source directory path. Skip in both situations. + return nil + } + + if options.IncludeSourceDir && include == "." && relFilePath != "." { + relFilePath = strings.Join([]string{".", relFilePath}, string(filepath.Separator)) + } + + skip := false + + // If "include" is an exact match for the current file + // then even if there's an "excludePatterns" pattern that + // matches it, don't skip it. IOW, assume an explicit 'include' + // is asking for that file no matter what - which is true + // for some files, like .dockerignore and Dockerfile (sometimes) + if include != relFilePath { + skip, err = fileutils.OptimizedMatches(relFilePath, patterns, patDirs) + if err != nil { + logrus.Debugf("Error matching %s: %v", relFilePath, err) + return err + } + } + + if skip { + if !exceptions && f.IsDir() { + return filepath.SkipDir + } + return nil + } + + if seen[relFilePath] { + return nil + } + seen[relFilePath] = true + + // TODO Windows: Verify if this needs to be os.Pathseparator + // Rename the base resource + if options.Name != "" && filePath == srcPath+"/"+filepath.Base(relFilePath) { + renamedRelFilePath = relFilePath + } + // Set this to make sure the items underneath also get renamed + if options.Name != "" { + relFilePath = strings.Replace(relFilePath, renamedRelFilePath, options.Name, 1) + } + + if err := ta.addTarFile(filePath, relFilePath); err != nil { + logrus.Debugf("Can't add file %s to tar: %s", filePath, err) + } + return nil + }) + } + }() + + return pipeReader, nil +} + +func Unpack(decompressedArchive io.Reader, dest string, options *TarOptions) error { + tr := tar.NewReader(decompressedArchive) + trBuf := pools.BufioReader32KPool.Get(nil) + defer pools.BufioReader32KPool.Put(trBuf) + + var dirs []*tar.Header + + // Iterate through the files in the archive. +loop: + for { + hdr, err := tr.Next() + if err == io.EOF { + // end of tar archive + break + } + if err != nil { + return err + } + + // Normalize name, for safety and for a simple is-root check + // This keeps "../" as-is, but normalizes "/../" to "/". Or Windows: + // This keeps "..\" as-is, but normalizes "\..\" to "\". + hdr.Name = filepath.Clean(hdr.Name) + + for _, exclude := range options.ExcludePatterns { + if strings.HasPrefix(hdr.Name, exclude) { + continue loop + } + } + + // After calling filepath.Clean(hdr.Name) above, hdr.Name will now be in + // the filepath format for the OS on which the daemon is running. Hence + // the check for a slash-suffix MUST be done in an OS-agnostic way. + if !strings.HasSuffix(hdr.Name, string(os.PathSeparator)) { + // Not the root directory, ensure that the parent directory exists + parent := filepath.Dir(hdr.Name) + parentPath := filepath.Join(dest, parent) + if _, err := os.Lstat(parentPath); err != nil && os.IsNotExist(err) { + err = system.MkdirAll(parentPath, 0777) + if err != nil { + return err + } + } + } + + path := filepath.Join(dest, hdr.Name) + rel, err := filepath.Rel(dest, path) + if err != nil { + return err + } + if strings.HasPrefix(rel, ".."+string(os.PathSeparator)) { + return breakoutError(fmt.Errorf("%q is outside of %q", hdr.Name, dest)) + } + + // If path exits we almost always just want to remove and replace it + // The only exception is when it is a directory *and* the file from + // the layer is also a directory. Then we want to merge them (i.e. + // just apply the metadata from the layer). + if fi, err := os.Lstat(path); err == nil { + if options.NoOverwriteDirNonDir && fi.IsDir() && hdr.Typeflag != tar.TypeDir { + // If NoOverwriteDirNonDir is true then we cannot replace + // an existing directory with a non-directory from the archive. + return fmt.Errorf("cannot overwrite directory %q with non-directory %q", path, dest) + } + + if options.NoOverwriteDirNonDir && !fi.IsDir() && hdr.Typeflag == tar.TypeDir { + // If NoOverwriteDirNonDir is true then we cannot replace + // an existing non-directory with a directory from the archive. + return fmt.Errorf("cannot overwrite non-directory %q with directory %q", path, dest) + } + + if fi.IsDir() && hdr.Name == "." { + continue + } + + if !(fi.IsDir() && hdr.Typeflag == tar.TypeDir) { + if err := os.RemoveAll(path); err != nil { + return err + } + } + } + trBuf.Reset(tr) + + if err := createTarFile(path, dest, hdr, trBuf, !options.NoLchown, options.ChownOpts); err != nil { + return err + } + + // Directory mtimes must be handled at the end to avoid further + // file creation in them to modify the directory mtime + if hdr.Typeflag == tar.TypeDir { + dirs = append(dirs, hdr) + } + } + + for _, hdr := range dirs { + path := filepath.Join(dest, hdr.Name) + ts := []syscall.Timespec{timeToTimespec(hdr.AccessTime), timeToTimespec(hdr.ModTime)} + if err := syscall.UtimesNano(path, ts); err != nil { + return err + } + } + return nil +} + +// Untar reads a stream of bytes from `archive`, parses it as a tar archive, +// and unpacks it into the directory at `dest`. +// The archive may be compressed with one of the following algorithms: +// identity (uncompressed), gzip, bzip2, xz. +// FIXME: specify behavior when target path exists vs. doesn't exist. +func Untar(tarArchive io.Reader, dest string, options *TarOptions) error { + return untarHandler(tarArchive, dest, options, true) +} + +// Untar reads a stream of bytes from `archive`, parses it as a tar archive, +// and unpacks it into the directory at `dest`. +// The archive must be an uncompressed stream. +func UntarUncompressed(tarArchive io.Reader, dest string, options *TarOptions) error { + return untarHandler(tarArchive, dest, options, false) +} + +// Handler for teasing out the automatic decompression +func untarHandler(tarArchive io.Reader, dest string, options *TarOptions, decompress bool) error { + if tarArchive == nil { + return fmt.Errorf("Empty archive") + } + dest = filepath.Clean(dest) + if options == nil { + options = &TarOptions{} + } + if options.ExcludePatterns == nil { + options.ExcludePatterns = []string{} + } + + var r io.Reader = tarArchive + if decompress { + decompressedArchive, err := DecompressStream(tarArchive) + if err != nil { + return err + } + defer decompressedArchive.Close() + r = decompressedArchive + } + + return Unpack(r, dest, options) +} + +func (archiver *Archiver) TarUntar(src, dst string) error { + logrus.Debugf("TarUntar(%s %s)", src, dst) + archive, err := TarWithOptions(src, &TarOptions{Compression: Uncompressed}) + if err != nil { + return err + } + defer archive.Close() + return archiver.Untar(archive, dst, nil) +} + +// TarUntar is a convenience function which calls Tar and Untar, with the output of one piped into the other. +// If either Tar or Untar fails, TarUntar aborts and returns the error. +func TarUntar(src, dst string) error { + return defaultArchiver.TarUntar(src, dst) +} + +func (archiver *Archiver) UntarPath(src, dst string) error { + archive, err := os.Open(src) + if err != nil { + return err + } + defer archive.Close() + if err := archiver.Untar(archive, dst, nil); err != nil { + return err + } + return nil +} + +// UntarPath is a convenience function which looks for an archive +// at filesystem path `src`, and unpacks it at `dst`. +func UntarPath(src, dst string) error { + return defaultArchiver.UntarPath(src, dst) +} + +func (archiver *Archiver) CopyWithTar(src, dst string) error { + srcSt, err := os.Stat(src) + if err != nil { + return err + } + if !srcSt.IsDir() { + return archiver.CopyFileWithTar(src, dst) + } + // Create dst, copy src's content into it + logrus.Debugf("Creating dest directory: %s", dst) + if err := system.MkdirAll(dst, 0755); err != nil && !os.IsExist(err) { + return err + } + logrus.Debugf("Calling TarUntar(%s, %s)", src, dst) + return archiver.TarUntar(src, dst) +} + +// CopyWithTar creates a tar archive of filesystem path `src`, and +// unpacks it at filesystem path `dst`. +// The archive is streamed directly with fixed buffering and no +// intermediary disk IO. +func CopyWithTar(src, dst string) error { + return defaultArchiver.CopyWithTar(src, dst) +} + +func (archiver *Archiver) CopyFileWithTar(src, dst string) (err error) { + logrus.Debugf("CopyFileWithTar(%s, %s)", src, dst) + srcSt, err := os.Stat(src) + if err != nil { + return err + } + + if srcSt.IsDir() { + return fmt.Errorf("Can't copy a directory") + } + + // Clean up the trailing slash. This must be done in an operating + // system specific manner. + if dst[len(dst)-1] == os.PathSeparator { + dst = filepath.Join(dst, filepath.Base(src)) + } + // Create the holding directory if necessary + if err := system.MkdirAll(filepath.Dir(dst), 0700); err != nil && !os.IsExist(err) { + return err + } + + r, w := io.Pipe() + errC := promise.Go(func() error { + defer w.Close() + + srcF, err := os.Open(src) + if err != nil { + return err + } + defer srcF.Close() + + hdr, err := tar.FileInfoHeader(srcSt, "") + if err != nil { + return err + } + hdr.Name = filepath.Base(dst) + hdr.Mode = int64(chmodTarEntry(os.FileMode(hdr.Mode))) + + tw := tar.NewWriter(w) + defer tw.Close() + if err := tw.WriteHeader(hdr); err != nil { + return err + } + if _, err := io.Copy(tw, srcF); err != nil { + return err + } + return nil + }) + defer func() { + if er := <-errC; err != nil { + err = er + } + }() + return archiver.Untar(r, filepath.Dir(dst), nil) +} + +// CopyFileWithTar emulates the behavior of the 'cp' command-line +// for a single file. It copies a regular file from path `src` to +// path `dst`, and preserves all its metadata. +// +// Destination handling is in an operating specific manner depending +// where the daemon is running. If `dst` ends with a trailing slash +// the final destination path will be `dst/base(src)` (Linux) or +// `dst\base(src)` (Windows). +func CopyFileWithTar(src, dst string) (err error) { + return defaultArchiver.CopyFileWithTar(src, dst) +} + +// CmdStream executes a command, and returns its stdout as a stream. +// If the command fails to run or doesn't complete successfully, an error +// will be returned, including anything written on stderr. +func CmdStream(cmd *exec.Cmd, input io.Reader) (io.ReadCloser, error) { + if input != nil { + stdin, err := cmd.StdinPipe() + if err != nil { + return nil, err + } + // Write stdin if any + go func() { + io.Copy(stdin, input) + stdin.Close() + }() + } + stdout, err := cmd.StdoutPipe() + if err != nil { + return nil, err + } + stderr, err := cmd.StderrPipe() + if err != nil { + return nil, err + } + pipeR, pipeW := io.Pipe() + errChan := make(chan []byte) + // Collect stderr, we will use it in case of an error + go func() { + errText, e := ioutil.ReadAll(stderr) + if e != nil { + errText = []byte("(...couldn't fetch stderr: " + e.Error() + ")") + } + errChan <- errText + }() + // Copy stdout to the returned pipe + go func() { + _, err := io.Copy(pipeW, stdout) + if err != nil { + pipeW.CloseWithError(err) + } + errText := <-errChan + if err := cmd.Wait(); err != nil { + pipeW.CloseWithError(fmt.Errorf("%s: %s", err, errText)) + } else { + pipeW.Close() + } + }() + // Run the command and return the pipe + if err := cmd.Start(); err != nil { + return nil, err + } + return pipeR, nil +} + +// NewTempArchive reads the content of src into a temporary file, and returns the contents +// of that file as an archive. The archive can only be read once - as soon as reading completes, +// the file will be deleted. +func NewTempArchive(src Archive, dir string) (*TempArchive, error) { + f, err := ioutil.TempFile(dir, "") + if err != nil { + return nil, err + } + if _, err := io.Copy(f, src); err != nil { + return nil, err + } + if _, err := f.Seek(0, 0); err != nil { + return nil, err + } + st, err := f.Stat() + if err != nil { + return nil, err + } + size := st.Size() + return &TempArchive{File: f, Size: size}, nil +} + +type TempArchive struct { + *os.File + Size int64 // Pre-computed from Stat().Size() as a convenience + read int64 + closed bool +} + +// Close closes the underlying file if it's still open, or does a no-op +// to allow callers to try to close the TempArchive multiple times safely. +func (archive *TempArchive) Close() error { + if archive.closed { + return nil + } + + archive.closed = true + + return archive.File.Close() +} + +func (archive *TempArchive) Read(data []byte) (int, error) { + n, err := archive.File.Read(data) + archive.read += int64(n) + if err != nil || archive.read == archive.Size { + archive.Close() + os.Remove(archive.File.Name()) + } + return n, err +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/archive_unix.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/archive_unix.go new file mode 100644 index 0000000..5c75437 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/archive_unix.go @@ -0,0 +1,89 @@ +// +build !windows + +package archive + +import ( + "archive/tar" + "errors" + "os" + "syscall" + + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system" +) + +// CanonicalTarNameForPath returns platform-specific filepath +// to canonical posix-style path for tar archival. p is relative +// path. +func CanonicalTarNameForPath(p string) (string, error) { + return p, nil // already unix-style +} + +// chmodTarEntry is used to adjust the file permissions used in tar header based +// on the platform the archival is done. + +func chmodTarEntry(perm os.FileMode) os.FileMode { + return perm // noop for unix as golang APIs provide perm bits correctly +} + +func setHeaderForSpecialDevice(hdr *tar.Header, ta *tarAppender, name string, stat interface{}) (nlink uint32, inode uint64, err error) { + s, ok := stat.(*syscall.Stat_t) + + if !ok { + err = errors.New("cannot convert stat value to syscall.Stat_t") + return + } + + nlink = uint32(s.Nlink) + inode = uint64(s.Ino) + + // Currently go does not fil in the major/minors + if s.Mode&syscall.S_IFBLK != 0 || + s.Mode&syscall.S_IFCHR != 0 { + hdr.Devmajor = int64(major(uint64(s.Rdev))) + hdr.Devminor = int64(minor(uint64(s.Rdev))) + } + + return +} + +func major(device uint64) uint64 { + return (device >> 8) & 0xfff +} + +func minor(device uint64) uint64 { + return (device & 0xff) | ((device >> 12) & 0xfff00) +} + +// handleTarTypeBlockCharFifo is an OS-specific helper function used by +// createTarFile to handle the following types of header: Block; Char; Fifo +func handleTarTypeBlockCharFifo(hdr *tar.Header, path string) error { + mode := uint32(hdr.Mode & 07777) + switch hdr.Typeflag { + case tar.TypeBlock: + mode |= syscall.S_IFBLK + case tar.TypeChar: + mode |= syscall.S_IFCHR + case tar.TypeFifo: + mode |= syscall.S_IFIFO + } + + if err := system.Mknod(path, mode, int(system.Mkdev(hdr.Devmajor, hdr.Devminor))); err != nil { + return err + } + return nil +} + +func handleLChmod(hdr *tar.Header, path string, hdrInfo os.FileInfo) error { + if hdr.Typeflag == tar.TypeLink { + if fi, err := os.Lstat(hdr.Linkname); err == nil && (fi.Mode()&os.ModeSymlink == 0) { + if err := os.Chmod(path, hdrInfo.Mode()); err != nil { + return err + } + } + } else if hdr.Typeflag != tar.TypeSymlink { + if err := os.Chmod(path, hdrInfo.Mode()); err != nil { + return err + } + } + return nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/archive_windows.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/archive_windows.go new file mode 100644 index 0000000..10db4bd --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/archive_windows.go @@ -0,0 +1,50 @@ +// +build windows + +package archive + +import ( + "archive/tar" + "fmt" + "os" + "strings" +) + +// canonicalTarNameForPath returns platform-specific filepath +// to canonical posix-style path for tar archival. p is relative +// path. +func CanonicalTarNameForPath(p string) (string, error) { + // windows: convert windows style relative path with backslashes + // into forward slashes. Since windows does not allow '/' or '\' + // in file names, it is mostly safe to replace however we must + // check just in case + if strings.Contains(p, "/") { + return "", fmt.Errorf("Windows path contains forward slash: %s", p) + } + return strings.Replace(p, string(os.PathSeparator), "/", -1), nil + +} + +// chmodTarEntry is used to adjust the file permissions used in tar header based +// on the platform the archival is done. +func chmodTarEntry(perm os.FileMode) os.FileMode { + perm &= 0755 + // Add the x bit: make everything +x from windows + perm |= 0111 + + return perm +} + +func setHeaderForSpecialDevice(hdr *tar.Header, ta *tarAppender, name string, stat interface{}) (nlink uint32, inode uint64, err error) { + // do nothing. no notion of Rdev, Inode, Nlink in stat on Windows + return +} + +// handleTarTypeBlockCharFifo is an OS-specific helper function used by +// createTarFile to handle the following types of header: Block; Char; Fifo +func handleTarTypeBlockCharFifo(hdr *tar.Header, path string) error { + return nil +} + +func handleLChmod(hdr *tar.Header, path string, hdrInfo os.FileInfo) error { + return nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes.go new file mode 100644 index 0000000..c7838e8 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes.go @@ -0,0 +1,383 @@ +package archive + +import ( + "archive/tar" + "bytes" + "fmt" + "io" + "io/ioutil" + "os" + "path/filepath" + "sort" + "strings" + "syscall" + "time" + + "github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus" + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/pools" + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system" +) + +type ChangeType int + +const ( + ChangeModify = iota + ChangeAdd + ChangeDelete +) + +type Change struct { + Path string + Kind ChangeType +} + +func (change *Change) String() string { + var kind string + switch change.Kind { + case ChangeModify: + kind = "C" + case ChangeAdd: + kind = "A" + case ChangeDelete: + kind = "D" + } + return fmt.Sprintf("%s %s", kind, change.Path) +} + +// for sort.Sort +type changesByPath []Change + +func (c changesByPath) Less(i, j int) bool { return c[i].Path < c[j].Path } +func (c changesByPath) Len() int { return len(c) } +func (c changesByPath) Swap(i, j int) { c[j], c[i] = c[i], c[j] } + +// Gnu tar and the go tar writer don't have sub-second mtime +// precision, which is problematic when we apply changes via tar +// files, we handle this by comparing for exact times, *or* same +// second count and either a or b having exactly 0 nanoseconds +func sameFsTime(a, b time.Time) bool { + return a == b || + (a.Unix() == b.Unix() && + (a.Nanosecond() == 0 || b.Nanosecond() == 0)) +} + +func sameFsTimeSpec(a, b syscall.Timespec) bool { + return a.Sec == b.Sec && + (a.Nsec == b.Nsec || a.Nsec == 0 || b.Nsec == 0) +} + +// Changes walks the path rw and determines changes for the files in the path, +// with respect to the parent layers +func Changes(layers []string, rw string) ([]Change, error) { + var ( + changes []Change + changedDirs = make(map[string]struct{}) + ) + + err := filepath.Walk(rw, func(path string, f os.FileInfo, err error) error { + if err != nil { + return err + } + + // Rebase path + path, err = filepath.Rel(rw, path) + if err != nil { + return err + } + + // As this runs on the daemon side, file paths are OS specific. + path = filepath.Join(string(os.PathSeparator), path) + + // Skip root + if path == string(os.PathSeparator) { + return nil + } + + // Skip AUFS metadata + if matched, err := filepath.Match(string(os.PathSeparator)+".wh..wh.*", path); err != nil || matched { + return err + } + + change := Change{ + Path: path, + } + + // Find out what kind of modification happened + file := filepath.Base(path) + // If there is a whiteout, then the file was removed + if strings.HasPrefix(file, ".wh.") { + originalFile := file[len(".wh."):] + change.Path = filepath.Join(filepath.Dir(path), originalFile) + change.Kind = ChangeDelete + } else { + // Otherwise, the file was added + change.Kind = ChangeAdd + + // ...Unless it already existed in a top layer, in which case, it's a modification + for _, layer := range layers { + stat, err := os.Stat(filepath.Join(layer, path)) + if err != nil && !os.IsNotExist(err) { + return err + } + if err == nil { + // The file existed in the top layer, so that's a modification + + // However, if it's a directory, maybe it wasn't actually modified. + // If you modify /foo/bar/baz, then /foo will be part of the changed files only because it's the parent of bar + if stat.IsDir() && f.IsDir() { + if f.Size() == stat.Size() && f.Mode() == stat.Mode() && sameFsTime(f.ModTime(), stat.ModTime()) { + // Both directories are the same, don't record the change + return nil + } + } + change.Kind = ChangeModify + break + } + } + } + + // If /foo/bar/file.txt is modified, then /foo/bar must be part of the changed files. + // This block is here to ensure the change is recorded even if the + // modify time, mode and size of the parent directoriy in the rw and ro layers are all equal. + // Check https://github.com/docker/docker/pull/13590 for details. + if f.IsDir() { + changedDirs[path] = struct{}{} + } + if change.Kind == ChangeAdd || change.Kind == ChangeDelete { + parent := filepath.Dir(path) + if _, ok := changedDirs[parent]; !ok && parent != "/" { + changes = append(changes, Change{Path: parent, Kind: ChangeModify}) + changedDirs[parent] = struct{}{} + } + } + + // Record change + changes = append(changes, change) + return nil + }) + if err != nil && !os.IsNotExist(err) { + return nil, err + } + return changes, nil +} + +type FileInfo struct { + parent *FileInfo + name string + stat *system.Stat_t + children map[string]*FileInfo + capability []byte + added bool +} + +func (root *FileInfo) LookUp(path string) *FileInfo { + // As this runs on the daemon side, file paths are OS specific. + parent := root + if path == string(os.PathSeparator) { + return root + } + + pathElements := strings.Split(path, string(os.PathSeparator)) + for _, elem := range pathElements { + if elem != "" { + child := parent.children[elem] + if child == nil { + return nil + } + parent = child + } + } + return parent +} + +func (info *FileInfo) path() string { + if info.parent == nil { + // As this runs on the daemon side, file paths are OS specific. + return string(os.PathSeparator) + } + return filepath.Join(info.parent.path(), info.name) +} + +func (info *FileInfo) addChanges(oldInfo *FileInfo, changes *[]Change) { + + sizeAtEntry := len(*changes) + + if oldInfo == nil { + // add + change := Change{ + Path: info.path(), + Kind: ChangeAdd, + } + *changes = append(*changes, change) + info.added = true + } + + // We make a copy so we can modify it to detect additions + // also, we only recurse on the old dir if the new info is a directory + // otherwise any previous delete/change is considered recursive + oldChildren := make(map[string]*FileInfo) + if oldInfo != nil && info.isDir() { + for k, v := range oldInfo.children { + oldChildren[k] = v + } + } + + for name, newChild := range info.children { + oldChild, _ := oldChildren[name] + if oldChild != nil { + // change? + oldStat := oldChild.stat + newStat := newChild.stat + // Note: We can't compare inode or ctime or blocksize here, because these change + // when copying a file into a container. However, that is not generally a problem + // because any content change will change mtime, and any status change should + // be visible when actually comparing the stat fields. The only time this + // breaks down is if some code intentionally hides a change by setting + // back mtime + if statDifferent(oldStat, newStat) || + bytes.Compare(oldChild.capability, newChild.capability) != 0 { + change := Change{ + Path: newChild.path(), + Kind: ChangeModify, + } + *changes = append(*changes, change) + newChild.added = true + } + + // Remove from copy so we can detect deletions + delete(oldChildren, name) + } + + newChild.addChanges(oldChild, changes) + } + for _, oldChild := range oldChildren { + // delete + change := Change{ + Path: oldChild.path(), + Kind: ChangeDelete, + } + *changes = append(*changes, change) + } + + // If there were changes inside this directory, we need to add it, even if the directory + // itself wasn't changed. This is needed to properly save and restore filesystem permissions. + // As this runs on the daemon side, file paths are OS specific. + if len(*changes) > sizeAtEntry && info.isDir() && !info.added && info.path() != string(os.PathSeparator) { + change := Change{ + Path: info.path(), + Kind: ChangeModify, + } + // Let's insert the directory entry before the recently added entries located inside this dir + *changes = append(*changes, change) // just to resize the slice, will be overwritten + copy((*changes)[sizeAtEntry+1:], (*changes)[sizeAtEntry:]) + (*changes)[sizeAtEntry] = change + } + +} + +func (info *FileInfo) Changes(oldInfo *FileInfo) []Change { + var changes []Change + + info.addChanges(oldInfo, &changes) + + return changes +} + +func newRootFileInfo() *FileInfo { + // As this runs on the daemon side, file paths are OS specific. + root := &FileInfo{ + name: string(os.PathSeparator), + children: make(map[string]*FileInfo), + } + return root +} + +// ChangesDirs compares two directories and generates an array of Change objects describing the changes. +// If oldDir is "", then all files in newDir will be Add-Changes. +func ChangesDirs(newDir, oldDir string) ([]Change, error) { + var ( + oldRoot, newRoot *FileInfo + ) + if oldDir == "" { + emptyDir, err := ioutil.TempDir("", "empty") + if err != nil { + return nil, err + } + defer os.Remove(emptyDir) + oldDir = emptyDir + } + oldRoot, newRoot, err := collectFileInfoForChanges(oldDir, newDir) + if err != nil { + return nil, err + } + + return newRoot.Changes(oldRoot), nil +} + +// ChangesSize calculates the size in bytes of the provided changes, based on newDir. +func ChangesSize(newDir string, changes []Change) int64 { + var size int64 + for _, change := range changes { + if change.Kind == ChangeModify || change.Kind == ChangeAdd { + file := filepath.Join(newDir, change.Path) + fileInfo, _ := os.Lstat(file) + if fileInfo != nil && !fileInfo.IsDir() { + size += fileInfo.Size() + } + } + } + return size +} + +// ExportChanges produces an Archive from the provided changes, relative to dir. +func ExportChanges(dir string, changes []Change) (Archive, error) { + reader, writer := io.Pipe() + go func() { + ta := &tarAppender{ + TarWriter: tar.NewWriter(writer), + Buffer: pools.BufioWriter32KPool.Get(nil), + SeenFiles: make(map[uint64]string), + } + // this buffer is needed for the duration of this piped stream + defer pools.BufioWriter32KPool.Put(ta.Buffer) + + sort.Sort(changesByPath(changes)) + + // In general we log errors here but ignore them because + // during e.g. a diff operation the container can continue + // mutating the filesystem and we can see transient errors + // from this + for _, change := range changes { + if change.Kind == ChangeDelete { + whiteOutDir := filepath.Dir(change.Path) + whiteOutBase := filepath.Base(change.Path) + whiteOut := filepath.Join(whiteOutDir, ".wh."+whiteOutBase) + timestamp := time.Now() + hdr := &tar.Header{ + Name: whiteOut[1:], + Size: 0, + ModTime: timestamp, + AccessTime: timestamp, + ChangeTime: timestamp, + } + if err := ta.TarWriter.WriteHeader(hdr); err != nil { + logrus.Debugf("Can't write whiteout header: %s", err) + } + } else { + path := filepath.Join(dir, change.Path) + if err := ta.addTarFile(path, change.Path[1:]); err != nil { + logrus.Debugf("Can't add file %s to tar: %s", path, err) + } + } + } + + // Make sure to check the error on Close. + if err := ta.TarWriter.Close(); err != nil { + logrus.Debugf("Can't close layer: %s", err) + } + if err := writer.Close(); err != nil { + logrus.Debugf("failed close Changes writer: %s", err) + } + }() + return reader, nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_linux.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_linux.go new file mode 100644 index 0000000..378cc09 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_linux.go @@ -0,0 +1,285 @@ +package archive + +import ( + "bytes" + "fmt" + "os" + "path/filepath" + "sort" + "syscall" + "unsafe" + + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system" +) + +// walker is used to implement collectFileInfoForChanges on linux. Where this +// method in general returns the entire contents of two directory trees, we +// optimize some FS calls out on linux. In particular, we take advantage of the +// fact that getdents(2) returns the inode of each file in the directory being +// walked, which, when walking two trees in parallel to generate a list of +// changes, can be used to prune subtrees without ever having to lstat(2) them +// directly. Eliminating stat calls in this way can save up to seconds on large +// images. +type walker struct { + dir1 string + dir2 string + root1 *FileInfo + root2 *FileInfo +} + +// collectFileInfoForChanges returns a complete representation of the trees +// rooted at dir1 and dir2, with one important exception: any subtree or +// leaf where the inode and device numbers are an exact match between dir1 +// and dir2 will be pruned from the results. This method is *only* to be used +// to generating a list of changes between the two directories, as it does not +// reflect the full contents. +func collectFileInfoForChanges(dir1, dir2 string) (*FileInfo, *FileInfo, error) { + w := &walker{ + dir1: dir1, + dir2: dir2, + root1: newRootFileInfo(), + root2: newRootFileInfo(), + } + + i1, err := os.Lstat(w.dir1) + if err != nil { + return nil, nil, err + } + i2, err := os.Lstat(w.dir2) + if err != nil { + return nil, nil, err + } + + if err := w.walk("/", i1, i2); err != nil { + return nil, nil, err + } + + return w.root1, w.root2, nil +} + +// Given a FileInfo, its path info, and a reference to the root of the tree +// being constructed, register this file with the tree. +func walkchunk(path string, fi os.FileInfo, dir string, root *FileInfo) error { + if fi == nil { + return nil + } + parent := root.LookUp(filepath.Dir(path)) + if parent == nil { + return fmt.Errorf("collectFileInfoForChanges: Unexpectedly no parent for %s", path) + } + info := &FileInfo{ + name: filepath.Base(path), + children: make(map[string]*FileInfo), + parent: parent, + } + cpath := filepath.Join(dir, path) + stat, err := system.FromStatT(fi.Sys().(*syscall.Stat_t)) + if err != nil { + return err + } + info.stat = stat + info.capability, _ = system.Lgetxattr(cpath, "security.capability") // lgetxattr(2): fs access + parent.children[info.name] = info + return nil +} + +// Walk a subtree rooted at the same path in both trees being iterated. For +// example, /docker/overlay/1234/a/b/c/d and /docker/overlay/8888/a/b/c/d +func (w *walker) walk(path string, i1, i2 os.FileInfo) (err error) { + // Register these nodes with the return trees, unless we're still at the + // (already-created) roots: + if path != "/" { + if err := walkchunk(path, i1, w.dir1, w.root1); err != nil { + return err + } + if err := walkchunk(path, i2, w.dir2, w.root2); err != nil { + return err + } + } + + is1Dir := i1 != nil && i1.IsDir() + is2Dir := i2 != nil && i2.IsDir() + + sameDevice := false + if i1 != nil && i2 != nil { + si1 := i1.Sys().(*syscall.Stat_t) + si2 := i2.Sys().(*syscall.Stat_t) + if si1.Dev == si2.Dev { + sameDevice = true + } + } + + // If these files are both non-existent, or leaves (non-dirs), we are done. + if !is1Dir && !is2Dir { + return nil + } + + // Fetch the names of all the files contained in both directories being walked: + var names1, names2 []nameIno + if is1Dir { + names1, err = readdirnames(filepath.Join(w.dir1, path)) // getdents(2): fs access + if err != nil { + return err + } + } + if is2Dir { + names2, err = readdirnames(filepath.Join(w.dir2, path)) // getdents(2): fs access + if err != nil { + return err + } + } + + // We have lists of the files contained in both parallel directories, sorted + // in the same order. Walk them in parallel, generating a unique merged list + // of all items present in either or both directories. + var names []string + ix1 := 0 + ix2 := 0 + + for { + if ix1 >= len(names1) { + break + } + if ix2 >= len(names2) { + break + } + + ni1 := names1[ix1] + ni2 := names2[ix2] + + switch bytes.Compare([]byte(ni1.name), []byte(ni2.name)) { + case -1: // ni1 < ni2 -- advance ni1 + // we will not encounter ni1 in names2 + names = append(names, ni1.name) + ix1++ + case 0: // ni1 == ni2 + if ni1.ino != ni2.ino || !sameDevice { + names = append(names, ni1.name) + } + ix1++ + ix2++ + case 1: // ni1 > ni2 -- advance ni2 + // we will not encounter ni2 in names1 + names = append(names, ni2.name) + ix2++ + } + } + for ix1 < len(names1) { + names = append(names, names1[ix1].name) + ix1++ + } + for ix2 < len(names2) { + names = append(names, names2[ix2].name) + ix2++ + } + + // For each of the names present in either or both of the directories being + // iterated, stat the name under each root, and recurse the pair of them: + for _, name := range names { + fname := filepath.Join(path, name) + var cInfo1, cInfo2 os.FileInfo + if is1Dir { + cInfo1, err = os.Lstat(filepath.Join(w.dir1, fname)) // lstat(2): fs access + if err != nil && !os.IsNotExist(err) { + return err + } + } + if is2Dir { + cInfo2, err = os.Lstat(filepath.Join(w.dir2, fname)) // lstat(2): fs access + if err != nil && !os.IsNotExist(err) { + return err + } + } + if err = w.walk(fname, cInfo1, cInfo2); err != nil { + return err + } + } + return nil +} + +// {name,inode} pairs used to support the early-pruning logic of the walker type +type nameIno struct { + name string + ino uint64 +} + +type nameInoSlice []nameIno + +func (s nameInoSlice) Len() int { return len(s) } +func (s nameInoSlice) Swap(i, j int) { s[i], s[j] = s[j], s[i] } +func (s nameInoSlice) Less(i, j int) bool { return s[i].name < s[j].name } + +// readdirnames is a hacked-apart version of the Go stdlib code, exposing inode +// numbers further up the stack when reading directory contents. Unlike +// os.Readdirnames, which returns a list of filenames, this function returns a +// list of {filename,inode} pairs. +func readdirnames(dirname string) (names []nameIno, err error) { + var ( + size = 100 + buf = make([]byte, 4096) + nbuf int + bufp int + nb int + ) + + f, err := os.Open(dirname) + if err != nil { + return nil, err + } + defer f.Close() + + names = make([]nameIno, 0, size) // Empty with room to grow. + for { + // Refill the buffer if necessary + if bufp >= nbuf { + bufp = 0 + nbuf, err = syscall.ReadDirent(int(f.Fd()), buf) // getdents on linux + if nbuf < 0 { + nbuf = 0 + } + if err != nil { + return nil, os.NewSyscallError("readdirent", err) + } + if nbuf <= 0 { + break // EOF + } + } + + // Drain the buffer + nb, names = parseDirent(buf[bufp:nbuf], names) + bufp += nb + } + + sl := nameInoSlice(names) + sort.Sort(sl) + return sl, nil +} + +// parseDirent is a minor modification of syscall.ParseDirent (linux version) +// which returns {name,inode} pairs instead of just names. +func parseDirent(buf []byte, names []nameIno) (consumed int, newnames []nameIno) { + origlen := len(buf) + for len(buf) > 0 { + dirent := (*syscall.Dirent)(unsafe.Pointer(&buf[0])) + buf = buf[dirent.Reclen:] + if dirent.Ino == 0 { // File absent in directory. + continue + } + bytes := (*[10000]byte)(unsafe.Pointer(&dirent.Name[0])) + var name = string(bytes[0:clen(bytes[:])]) + if name == "." || name == ".." { // Useless names + continue + } + names = append(names, nameIno{name, dirent.Ino}) + } + return origlen - len(buf), names +} + +func clen(n []byte) int { + for i := 0; i < len(n); i++ { + if n[i] == 0 { + return i + } + } + return len(n) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_other.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_other.go new file mode 100644 index 0000000..35832f0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_other.go @@ -0,0 +1,97 @@ +// +build !linux + +package archive + +import ( + "fmt" + "os" + "path/filepath" + "runtime" + "strings" + + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system" +) + +func collectFileInfoForChanges(oldDir, newDir string) (*FileInfo, *FileInfo, error) { + var ( + oldRoot, newRoot *FileInfo + err1, err2 error + errs = make(chan error, 2) + ) + go func() { + oldRoot, err1 = collectFileInfo(oldDir) + errs <- err1 + }() + go func() { + newRoot, err2 = collectFileInfo(newDir) + errs <- err2 + }() + + // block until both routines have returned + for i := 0; i < 2; i++ { + if err := <-errs; err != nil { + return nil, nil, err + } + } + + return oldRoot, newRoot, nil +} + +func collectFileInfo(sourceDir string) (*FileInfo, error) { + root := newRootFileInfo() + + err := filepath.Walk(sourceDir, func(path string, f os.FileInfo, err error) error { + if err != nil { + return err + } + + // Rebase path + relPath, err := filepath.Rel(sourceDir, path) + if err != nil { + return err + } + + // As this runs on the daemon side, file paths are OS specific. + relPath = filepath.Join(string(os.PathSeparator), relPath) + + // See https://github.com/golang/go/issues/9168 - bug in filepath.Join. + // Temporary workaround. If the returned path starts with two backslashes, + // trim it down to a single backslash. Only relevant on Windows. + if runtime.GOOS == "windows" { + if strings.HasPrefix(relPath, `\\`) { + relPath = relPath[1:] + } + } + + if relPath == string(os.PathSeparator) { + return nil + } + + parent := root.LookUp(filepath.Dir(relPath)) + if parent == nil { + return fmt.Errorf("collectFileInfo: Unexpectedly no parent for %s", relPath) + } + + info := &FileInfo{ + name: filepath.Base(relPath), + children: make(map[string]*FileInfo), + parent: parent, + } + + s, err := system.Lstat(path) + if err != nil { + return err + } + info.stat = s + + info.capability, _ = system.Lgetxattr(path, "security.capability") + + parent.children[info.name] = info + + return nil + }) + if err != nil { + return nil, err + } + return root, nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_unix.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_unix.go new file mode 100644 index 0000000..dc1ea60 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_unix.go @@ -0,0 +1,27 @@ +// +build !windows + +package archive + +import ( + "syscall" + + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system" +) + +func statDifferent(oldStat *system.Stat_t, newStat *system.Stat_t) bool { + // Don't look at size for dirs, its not a good measure of change + if oldStat.Mode() != newStat.Mode() || + oldStat.Uid() != newStat.Uid() || + oldStat.Gid() != newStat.Gid() || + oldStat.Rdev() != newStat.Rdev() || + // Don't look at size for dirs, its not a good measure of change + (oldStat.Mode()&syscall.S_IFDIR != syscall.S_IFDIR && + (!sameFsTimeSpec(oldStat.Mtim(), newStat.Mtim()) || (oldStat.Size() != newStat.Size()))) { + return true + } + return false +} + +func (info *FileInfo) isDir() bool { + return info.parent == nil || info.stat.Mode()&syscall.S_IFDIR != 0 +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_windows.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_windows.go new file mode 100644 index 0000000..6026575 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/changes_windows.go @@ -0,0 +1,20 @@ +package archive + +import ( + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system" +) + +func statDifferent(oldStat *system.Stat_t, newStat *system.Stat_t) bool { + + // Don't look at size for dirs, its not a good measure of change + if oldStat.ModTime() != newStat.ModTime() || + oldStat.Mode() != newStat.Mode() || + oldStat.Size() != newStat.Size() && !oldStat.IsDir() { + return true + } + return false +} + +func (info *FileInfo) isDir() bool { + return info.parent == nil || info.stat.IsDir() +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/copy.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/copy.go new file mode 100644 index 0000000..576f336 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/copy.go @@ -0,0 +1,308 @@ +package archive + +import ( + "archive/tar" + "errors" + "io" + "io/ioutil" + "os" + "path" + "path/filepath" + "strings" + + "github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus" +) + +// Errors used or returned by this file. +var ( + ErrNotDirectory = errors.New("not a directory") + ErrDirNotExists = errors.New("no such directory") + ErrCannotCopyDir = errors.New("cannot copy directory") + ErrInvalidCopySource = errors.New("invalid copy source content") +) + +// PreserveTrailingDotOrSeparator returns the given cleaned path (after +// processing using any utility functions from the path or filepath stdlib +// packages) and appends a trailing `/.` or `/` if its corresponding original +// path (from before being processed by utility functions from the path or +// filepath stdlib packages) ends with a trailing `/.` or `/`. If the cleaned +// path already ends in a `.` path segment, then another is not added. If the +// clean path already ends in a path separator, then another is not added. +func PreserveTrailingDotOrSeparator(cleanedPath, originalPath string) string { + if !SpecifiesCurrentDir(cleanedPath) && SpecifiesCurrentDir(originalPath) { + if !HasTrailingPathSeparator(cleanedPath) { + // Add a separator if it doesn't already end with one (a cleaned + // path would only end in a separator if it is the root). + cleanedPath += string(filepath.Separator) + } + cleanedPath += "." + } + + if !HasTrailingPathSeparator(cleanedPath) && HasTrailingPathSeparator(originalPath) { + cleanedPath += string(filepath.Separator) + } + + return cleanedPath +} + +// AssertsDirectory returns whether the given path is +// asserted to be a directory, i.e., the path ends with +// a trailing '/' or `/.`, assuming a path separator of `/`. +func AssertsDirectory(path string) bool { + return HasTrailingPathSeparator(path) || SpecifiesCurrentDir(path) +} + +// HasTrailingPathSeparator returns whether the given +// path ends with the system's path separator character. +func HasTrailingPathSeparator(path string) bool { + return len(path) > 0 && os.IsPathSeparator(path[len(path)-1]) +} + +// SpecifiesCurrentDir returns whether the given path specifies +// a "current directory", i.e., the last path segment is `.`. +func SpecifiesCurrentDir(path string) bool { + return filepath.Base(path) == "." +} + +// SplitPathDirEntry splits the given path between its +// parent directory and its basename in that directory. +func SplitPathDirEntry(localizedPath string) (dir, base string) { + normalizedPath := filepath.ToSlash(localizedPath) + vol := filepath.VolumeName(normalizedPath) + normalizedPath = normalizedPath[len(vol):] + + if normalizedPath == "/" { + // Specifies the root path. + return filepath.FromSlash(vol + normalizedPath), "." + } + + trimmedPath := vol + strings.TrimRight(normalizedPath, "/") + + dir = filepath.FromSlash(path.Dir(trimmedPath)) + base = filepath.FromSlash(path.Base(trimmedPath)) + + return dir, base +} + +// TarResource archives the resource at the given sourcePath into a Tar +// archive. A non-nil error is returned if sourcePath does not exist or is +// asserted to be a directory but exists as another type of file. +// +// This function acts as a convenient wrapper around TarWithOptions, which +// requires a directory as the source path. TarResource accepts either a +// directory or a file path and correctly sets the Tar options. +func TarResource(sourcePath string) (content Archive, err error) { + if _, err = os.Lstat(sourcePath); err != nil { + // Catches the case where the source does not exist or is not a + // directory if asserted to be a directory, as this also causes an + // error. + return + } + + if len(sourcePath) > 1 && HasTrailingPathSeparator(sourcePath) { + // In the case where the source path is a symbolic link AND it ends + // with a path separator, we will want to evaluate the symbolic link. + trimmedPath := sourcePath[:len(sourcePath)-1] + stat, err := os.Lstat(trimmedPath) + if err != nil { + return nil, err + } + + if stat.Mode()&os.ModeSymlink != 0 { + if sourcePath, err = filepath.EvalSymlinks(trimmedPath); err != nil { + return nil, err + } + } + } + + // Separate the source path between it's directory and + // the entry in that directory which we are archiving. + sourceDir, sourceBase := SplitPathDirEntry(sourcePath) + + filter := []string{sourceBase} + + logrus.Debugf("copying %q from %q", sourceBase, sourceDir) + + return TarWithOptions(sourceDir, &TarOptions{ + Compression: Uncompressed, + IncludeFiles: filter, + IncludeSourceDir: true, + }) +} + +// CopyInfo holds basic info about the source +// or destination path of a copy operation. +type CopyInfo struct { + Path string + Exists bool + IsDir bool +} + +// CopyInfoStatPath stats the given path to create a CopyInfo +// struct representing that resource. If mustExist is true, then +// it is an error if there is no file or directory at the given path. +func CopyInfoStatPath(path string, mustExist bool) (CopyInfo, error) { + pathInfo := CopyInfo{Path: path} + + fileInfo, err := os.Lstat(path) + + if err == nil { + pathInfo.Exists, pathInfo.IsDir = true, fileInfo.IsDir() + } else if os.IsNotExist(err) && !mustExist { + err = nil + } + + return pathInfo, err +} + +// PrepareArchiveCopy prepares the given srcContent archive, which should +// contain the archived resource described by srcInfo, to the destination +// described by dstInfo. Returns the possibly modified content archive along +// with the path to the destination directory which it should be extracted to. +func PrepareArchiveCopy(srcContent ArchiveReader, srcInfo, dstInfo CopyInfo) (dstDir string, content Archive, err error) { + // Separate the destination path between its directory and base + // components in case the source archive contents need to be rebased. + dstDir, dstBase := SplitPathDirEntry(dstInfo.Path) + _, srcBase := SplitPathDirEntry(srcInfo.Path) + + switch { + case dstInfo.Exists && dstInfo.IsDir: + // The destination exists as a directory. No alteration + // to srcContent is needed as its contents can be + // simply extracted to the destination directory. + return dstInfo.Path, ioutil.NopCloser(srcContent), nil + case dstInfo.Exists && srcInfo.IsDir: + // The destination exists as some type of file and the source + // content is a directory. This is an error condition since + // you cannot copy a directory to an existing file location. + return "", nil, ErrCannotCopyDir + case dstInfo.Exists: + // The destination exists as some type of file and the source content + // is also a file. The source content entry will have to be renamed to + // have a basename which matches the destination path's basename. + return dstDir, rebaseArchiveEntries(srcContent, srcBase, dstBase), nil + case srcInfo.IsDir: + // The destination does not exist and the source content is an archive + // of a directory. The archive should be extracted to the parent of + // the destination path instead, and when it is, the directory that is + // created as a result should take the name of the destination path. + // The source content entries will have to be renamed to have a + // basename which matches the destination path's basename. + return dstDir, rebaseArchiveEntries(srcContent, srcBase, dstBase), nil + case AssertsDirectory(dstInfo.Path): + // The destination does not exist and is asserted to be created as a + // directory, but the source content is not a directory. This is an + // error condition since you cannot create a directory from a file + // source. + return "", nil, ErrDirNotExists + default: + // The last remaining case is when the destination does not exist, is + // not asserted to be a directory, and the source content is not an + // archive of a directory. It this case, the destination file will need + // to be created when the archive is extracted and the source content + // entry will have to be renamed to have a basename which matches the + // destination path's basename. + return dstDir, rebaseArchiveEntries(srcContent, srcBase, dstBase), nil + } + +} + +// rebaseArchiveEntries rewrites the given srcContent archive replacing +// an occurance of oldBase with newBase at the beginning of entry names. +func rebaseArchiveEntries(srcContent ArchiveReader, oldBase, newBase string) Archive { + rebased, w := io.Pipe() + + go func() { + srcTar := tar.NewReader(srcContent) + rebasedTar := tar.NewWriter(w) + + for { + hdr, err := srcTar.Next() + if err == io.EOF { + // Signals end of archive. + rebasedTar.Close() + w.Close() + return + } + if err != nil { + w.CloseWithError(err) + return + } + + hdr.Name = strings.Replace(hdr.Name, oldBase, newBase, 1) + + if err = rebasedTar.WriteHeader(hdr); err != nil { + w.CloseWithError(err) + return + } + + if _, err = io.Copy(rebasedTar, srcTar); err != nil { + w.CloseWithError(err) + return + } + } + }() + + return rebased +} + +// CopyResource performs an archive copy from the given source path to the +// given destination path. The source path MUST exist and the destination +// path's parent directory must exist. +func CopyResource(srcPath, dstPath string) error { + var ( + srcInfo CopyInfo + err error + ) + + // Clean the source and destination paths. + srcPath = PreserveTrailingDotOrSeparator(filepath.Clean(srcPath), srcPath) + dstPath = PreserveTrailingDotOrSeparator(filepath.Clean(dstPath), dstPath) + + if srcInfo, err = CopyInfoStatPath(srcPath, true); err != nil { + return err + } + + content, err := TarResource(srcPath) + if err != nil { + return err + } + defer content.Close() + + return CopyTo(content, srcInfo, dstPath) +} + +// CopyTo handles extracting the given content whose +// entries should be sourced from srcInfo to dstPath. +func CopyTo(content ArchiveReader, srcInfo CopyInfo, dstPath string) error { + dstInfo, err := CopyInfoStatPath(dstPath, false) + if err != nil { + return err + } + + if !dstInfo.Exists { + // Ensure destination parent dir exists. + dstParent, _ := SplitPathDirEntry(dstPath) + + dstStat, err := os.Lstat(dstParent) + if err != nil { + return err + } + if !dstStat.IsDir() { + return ErrNotDirectory + } + } + + dstDir, copyArchive, err := PrepareArchiveCopy(content, srcInfo, dstInfo) + if err != nil { + return err + } + defer copyArchive.Close() + + options := &TarOptions{ + NoLchown: true, + NoOverwriteDirNonDir: true, + } + + return Untar(copyArchive, dstDir, options) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/copy_unix.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/copy_unix.go new file mode 100644 index 0000000..e305b5e --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/copy_unix.go @@ -0,0 +1,11 @@ +// +build !windows + +package archive + +import ( + "path/filepath" +) + +func normalizePath(path string) string { + return filepath.ToSlash(path) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/copy_windows.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/copy_windows.go new file mode 100644 index 0000000..2b775b4 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/copy_windows.go @@ -0,0 +1,9 @@ +package archive + +import ( + "path/filepath" +) + +func normalizePath(path string) string { + return filepath.FromSlash(path) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/diff.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/diff.go new file mode 100644 index 0000000..10a63a0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/diff.go @@ -0,0 +1,210 @@ +package archive + +import ( + "archive/tar" + "fmt" + "io" + "io/ioutil" + "os" + "path/filepath" + "runtime" + "strings" + "syscall" + + "github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus" + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/pools" + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system" +) + +func UnpackLayer(dest string, layer ArchiveReader) (size int64, err error) { + tr := tar.NewReader(layer) + trBuf := pools.BufioReader32KPool.Get(tr) + defer pools.BufioReader32KPool.Put(trBuf) + + var dirs []*tar.Header + + aufsTempdir := "" + aufsHardlinks := make(map[string]*tar.Header) + + // Iterate through the files in the archive. + for { + hdr, err := tr.Next() + if err == io.EOF { + // end of tar archive + break + } + if err != nil { + return 0, err + } + + size += hdr.Size + + // Normalize name, for safety and for a simple is-root check + hdr.Name = filepath.Clean(hdr.Name) + + // Windows does not support filenames with colons in them. Ignore + // these files. This is not a problem though (although it might + // appear that it is). Let's suppose a client is running docker pull. + // The daemon it points to is Windows. Would it make sense for the + // client to be doing a docker pull Ubuntu for example (which has files + // with colons in the name under /usr/share/man/man3)? No, absolutely + // not as it would really only make sense that they were pulling a + // Windows image. However, for development, it is necessary to be able + // to pull Linux images which are in the repository. + // + // TODO Windows. Once the registry is aware of what images are Windows- + // specific or Linux-specific, this warning should be changed to an error + // to cater for the situation where someone does manage to upload a Linux + // image but have it tagged as Windows inadvertantly. + if runtime.GOOS == "windows" { + if strings.Contains(hdr.Name, ":") { + logrus.Warnf("Windows: Ignoring %s (is this a Linux image?)", hdr.Name) + continue + } + } + + // Note as these operations are platform specific, so must the slash be. + if !strings.HasSuffix(hdr.Name, string(os.PathSeparator)) { + // Not the root directory, ensure that the parent directory exists. + // This happened in some tests where an image had a tarfile without any + // parent directories. + parent := filepath.Dir(hdr.Name) + parentPath := filepath.Join(dest, parent) + + if _, err := os.Lstat(parentPath); err != nil && os.IsNotExist(err) { + err = system.MkdirAll(parentPath, 0600) + if err != nil { + return 0, err + } + } + } + + // Skip AUFS metadata dirs + if strings.HasPrefix(hdr.Name, ".wh..wh.") { + // Regular files inside /.wh..wh.plnk can be used as hardlink targets + // We don't want this directory, but we need the files in them so that + // such hardlinks can be resolved. + if strings.HasPrefix(hdr.Name, ".wh..wh.plnk") && hdr.Typeflag == tar.TypeReg { + basename := filepath.Base(hdr.Name) + aufsHardlinks[basename] = hdr + if aufsTempdir == "" { + if aufsTempdir, err = ioutil.TempDir("", "dockerplnk"); err != nil { + return 0, err + } + defer os.RemoveAll(aufsTempdir) + } + if err := createTarFile(filepath.Join(aufsTempdir, basename), dest, hdr, tr, true, nil); err != nil { + return 0, err + } + } + continue + } + path := filepath.Join(dest, hdr.Name) + rel, err := filepath.Rel(dest, path) + if err != nil { + return 0, err + } + + // Note as these operations are platform specific, so must the slash be. + if strings.HasPrefix(rel, ".."+string(os.PathSeparator)) { + return 0, breakoutError(fmt.Errorf("%q is outside of %q", hdr.Name, dest)) + } + base := filepath.Base(path) + + if strings.HasPrefix(base, ".wh.") { + originalBase := base[len(".wh."):] + originalPath := filepath.Join(filepath.Dir(path), originalBase) + if err := os.RemoveAll(originalPath); err != nil { + return 0, err + } + } else { + // If path exits we almost always just want to remove and replace it. + // The only exception is when it is a directory *and* the file from + // the layer is also a directory. Then we want to merge them (i.e. + // just apply the metadata from the layer). + if fi, err := os.Lstat(path); err == nil { + if !(fi.IsDir() && hdr.Typeflag == tar.TypeDir) { + if err := os.RemoveAll(path); err != nil { + return 0, err + } + } + } + + trBuf.Reset(tr) + srcData := io.Reader(trBuf) + srcHdr := hdr + + // Hard links into /.wh..wh.plnk don't work, as we don't extract that directory, so + // we manually retarget these into the temporary files we extracted them into + if hdr.Typeflag == tar.TypeLink && strings.HasPrefix(filepath.Clean(hdr.Linkname), ".wh..wh.plnk") { + linkBasename := filepath.Base(hdr.Linkname) + srcHdr = aufsHardlinks[linkBasename] + if srcHdr == nil { + return 0, fmt.Errorf("Invalid aufs hardlink") + } + tmpFile, err := os.Open(filepath.Join(aufsTempdir, linkBasename)) + if err != nil { + return 0, err + } + defer tmpFile.Close() + srcData = tmpFile + } + + if err := createTarFile(path, dest, srcHdr, srcData, true, nil); err != nil { + return 0, err + } + + // Directory mtimes must be handled at the end to avoid further + // file creation in them to modify the directory mtime + if hdr.Typeflag == tar.TypeDir { + dirs = append(dirs, hdr) + } + } + } + + for _, hdr := range dirs { + path := filepath.Join(dest, hdr.Name) + ts := []syscall.Timespec{timeToTimespec(hdr.AccessTime), timeToTimespec(hdr.ModTime)} + if err := syscall.UtimesNano(path, ts); err != nil { + return 0, err + } + } + + return size, nil +} + +// ApplyLayer parses a diff in the standard layer format from `layer`, +// and applies it to the directory `dest`. The stream `layer` can be +// compressed or uncompressed. +// Returns the size in bytes of the contents of the layer. +func ApplyLayer(dest string, layer ArchiveReader) (int64, error) { + return applyLayerHandler(dest, layer, true) +} + +// ApplyUncompressedLayer parses a diff in the standard layer format from +// `layer`, and applies it to the directory `dest`. The stream `layer` +// can only be uncompressed. +// Returns the size in bytes of the contents of the layer. +func ApplyUncompressedLayer(dest string, layer ArchiveReader) (int64, error) { + return applyLayerHandler(dest, layer, false) +} + +// do the bulk load of ApplyLayer, but allow for not calling DecompressStream +func applyLayerHandler(dest string, layer ArchiveReader, decompress bool) (int64, error) { + dest = filepath.Clean(dest) + + // We need to be able to set any perms + oldmask, err := system.Umask(0) + if err != nil { + return 0, err + } + defer system.Umask(oldmask) // ignore err, ErrNotSupportedPlatform + + if decompress { + layer, err = DecompressStream(layer) + if err != nil { + return 0, err + } + } + return UnpackLayer(dest, layer) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/example_changes.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/example_changes.go new file mode 100644 index 0000000..a5e08e4 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/example_changes.go @@ -0,0 +1,97 @@ +// +build ignore + +// Simple tool to create an archive stream from an old and new directory +// +// By default it will stream the comparison of two temporary directories with junk files +package main + +import ( + "flag" + "fmt" + "io" + "io/ioutil" + "os" + "path" + + "github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus" + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive" +) + +var ( + flDebug = flag.Bool("D", false, "debugging output") + flNewDir = flag.String("newdir", "", "") + flOldDir = flag.String("olddir", "", "") + log = logrus.New() +) + +func main() { + flag.Usage = func() { + fmt.Println("Produce a tar from comparing two directory paths. By default a demo tar is created of around 200 files (including hardlinks)") + fmt.Printf("%s [OPTIONS]\n", os.Args[0]) + flag.PrintDefaults() + } + flag.Parse() + log.Out = os.Stderr + if (len(os.Getenv("DEBUG")) > 0) || *flDebug { + logrus.SetLevel(logrus.DebugLevel) + } + var newDir, oldDir string + + if len(*flNewDir) == 0 { + var err error + newDir, err = ioutil.TempDir("", "docker-test-newDir") + if err != nil { + log.Fatal(err) + } + defer os.RemoveAll(newDir) + if _, err := prepareUntarSourceDirectory(100, newDir, true); err != nil { + log.Fatal(err) + } + } else { + newDir = *flNewDir + } + + if len(*flOldDir) == 0 { + oldDir, err := ioutil.TempDir("", "docker-test-oldDir") + if err != nil { + log.Fatal(err) + } + defer os.RemoveAll(oldDir) + } else { + oldDir = *flOldDir + } + + changes, err := archive.ChangesDirs(newDir, oldDir) + if err != nil { + log.Fatal(err) + } + + a, err := archive.ExportChanges(newDir, changes) + if err != nil { + log.Fatal(err) + } + defer a.Close() + + i, err := io.Copy(os.Stdout, a) + if err != nil && err != io.EOF { + log.Fatal(err) + } + fmt.Fprintf(os.Stderr, "wrote archive of %d bytes", i) +} + +func prepareUntarSourceDirectory(numberOfFiles int, targetPath string, makeLinks bool) (int, error) { + fileData := []byte("fooo") + for n := 0; n < numberOfFiles; n++ { + fileName := fmt.Sprintf("file-%d", n) + if err := ioutil.WriteFile(path.Join(targetPath, fileName), fileData, 0700); err != nil { + return 0, err + } + if makeLinks { + if err := os.Link(path.Join(targetPath, fileName), path.Join(targetPath, fileName+"-link")); err != nil { + return 0, err + } + } + } + totalSize := numberOfFiles * len(fileData) + return totalSize, nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/time_linux.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/time_linux.go new file mode 100644 index 0000000..3448569 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/time_linux.go @@ -0,0 +1,16 @@ +package archive + +import ( + "syscall" + "time" +) + +func timeToTimespec(time time.Time) (ts syscall.Timespec) { + if time.IsZero() { + // Return UTIME_OMIT special value + ts.Sec = 0 + ts.Nsec = ((1 << 30) - 2) + return + } + return syscall.NsecToTimespec(time.UnixNano()) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/time_unsupported.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/time_unsupported.go new file mode 100644 index 0000000..e85aac0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/time_unsupported.go @@ -0,0 +1,16 @@ +// +build !linux + +package archive + +import ( + "syscall" + "time" +) + +func timeToTimespec(time time.Time) (ts syscall.Timespec) { + nsec := int64(0) + if !time.IsZero() { + nsec = time.UnixNano() + } + return syscall.NsecToTimespec(nsec) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/wrap.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/wrap.go new file mode 100644 index 0000000..dfb335c --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive/wrap.go @@ -0,0 +1,59 @@ +package archive + +import ( + "archive/tar" + "bytes" + "io/ioutil" +) + +// Generate generates a new archive from the content provided +// as input. +// +// `files` is a sequence of path/content pairs. A new file is +// added to the archive for each pair. +// If the last pair is incomplete, the file is created with an +// empty content. For example: +// +// Generate("foo.txt", "hello world", "emptyfile") +// +// The above call will return an archive with 2 files: +// * ./foo.txt with content "hello world" +// * ./empty with empty content +// +// FIXME: stream content instead of buffering +// FIXME: specify permissions and other archive metadata +func Generate(input ...string) (Archive, error) { + files := parseStringPairs(input...) + buf := new(bytes.Buffer) + tw := tar.NewWriter(buf) + for _, file := range files { + name, content := file[0], file[1] + hdr := &tar.Header{ + Name: name, + Size: int64(len(content)), + } + if err := tw.WriteHeader(hdr); err != nil { + return nil, err + } + if _, err := tw.Write([]byte(content)); err != nil { + return nil, err + } + } + if err := tw.Close(); err != nil { + return nil, err + } + return ioutil.NopCloser(buf), nil +} + +func parseStringPairs(input ...string) (output [][2]string) { + output = make([][2]string, 0, len(input)/2+1) + for i := 0; i < len(input); i += 2 { + var pair [2]string + pair[0] = input[i] + if i+1 < len(input) { + pair[1] = input[i+1] + } + output = append(output, pair) + } + return +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/fileutils/fileutils.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/fileutils/fileutils.go new file mode 100644 index 0000000..1b8cadc --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/fileutils/fileutils.go @@ -0,0 +1,196 @@ +package fileutils + +import ( + "errors" + "fmt" + "io" + "io/ioutil" + "os" + "path/filepath" + "strings" + + "github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus" +) + +// exclusion return true if the specified pattern is an exclusion +func exclusion(pattern string) bool { + return pattern[0] == '!' +} + +// empty return true if the specified pattern is empty +func empty(pattern string) bool { + return pattern == "" +} + +// CleanPatterns takes a slice of patterns returns a new +// slice of patterns cleaned with filepath.Clean, stripped +// of any empty patterns and lets the caller know whether the +// slice contains any exception patterns (prefixed with !). +func CleanPatterns(patterns []string) ([]string, [][]string, bool, error) { + // Loop over exclusion patterns and: + // 1. Clean them up. + // 2. Indicate whether we are dealing with any exception rules. + // 3. Error if we see a single exclusion marker on it's own (!). + cleanedPatterns := []string{} + patternDirs := [][]string{} + exceptions := false + for _, pattern := range patterns { + // Eliminate leading and trailing whitespace. + pattern = strings.TrimSpace(pattern) + if empty(pattern) { + continue + } + if exclusion(pattern) { + if len(pattern) == 1 { + return nil, nil, false, errors.New("Illegal exclusion pattern: !") + } + exceptions = true + } + pattern = filepath.Clean(pattern) + cleanedPatterns = append(cleanedPatterns, pattern) + if exclusion(pattern) { + pattern = pattern[1:] + } + patternDirs = append(patternDirs, strings.Split(pattern, "/")) + } + + return cleanedPatterns, patternDirs, exceptions, nil +} + +// Matches returns true if file matches any of the patterns +// and isn't excluded by any of the subsequent patterns. +func Matches(file string, patterns []string) (bool, error) { + file = filepath.Clean(file) + + if file == "." { + // Don't let them exclude everything, kind of silly. + return false, nil + } + + patterns, patDirs, _, err := CleanPatterns(patterns) + if err != nil { + return false, err + } + + return OptimizedMatches(file, patterns, patDirs) +} + +// OptimizedMatches is basically the same as fileutils.Matches() but optimized for archive.go. +// It will assume that the inputs have been preprocessed and therefore the function +// doen't need to do as much error checking and clean-up. This was done to avoid +// repeating these steps on each file being checked during the archive process. +// The more generic fileutils.Matches() can't make these assumptions. +func OptimizedMatches(file string, patterns []string, patDirs [][]string) (bool, error) { + matched := false + parentPath := filepath.Dir(file) + parentPathDirs := strings.Split(parentPath, "/") + + for i, pattern := range patterns { + negative := false + + if exclusion(pattern) { + negative = true + pattern = pattern[1:] + } + + match, err := filepath.Match(pattern, file) + if err != nil { + return false, err + } + + if !match && parentPath != "." { + // Check to see if the pattern matches one of our parent dirs. + if len(patDirs[i]) <= len(parentPathDirs) { + match, _ = filepath.Match(strings.Join(patDirs[i], "/"), + strings.Join(parentPathDirs[:len(patDirs[i])], "/")) + } + } + + if match { + matched = !negative + } + } + + if matched { + logrus.Debugf("Skipping excluded path: %s", file) + } + + return matched, nil +} + +// CopyFile copies from src to dst until either EOF is reached +// on src or an error occurs. It verifies src exists and remove +// the dst if it exists. +func CopyFile(src, dst string) (int64, error) { + cleanSrc := filepath.Clean(src) + cleanDst := filepath.Clean(dst) + if cleanSrc == cleanDst { + return 0, nil + } + sf, err := os.Open(cleanSrc) + if err != nil { + return 0, err + } + defer sf.Close() + if err := os.Remove(cleanDst); err != nil && !os.IsNotExist(err) { + return 0, err + } + df, err := os.Create(cleanDst) + if err != nil { + return 0, err + } + defer df.Close() + return io.Copy(df, sf) +} + +// GetTotalUsedFds Returns the number of used File Descriptors by +// reading it via /proc filesystem. +func GetTotalUsedFds() int { + if fds, err := ioutil.ReadDir(fmt.Sprintf("/proc/%d/fd", os.Getpid())); err != nil { + logrus.Errorf("Error opening /proc/%d/fd: %s", os.Getpid(), err) + } else { + return len(fds) + } + return -1 +} + +// ReadSymlinkedDirectory returns the target directory of a symlink. +// The target of the symbolic link may not be a file. +func ReadSymlinkedDirectory(path string) (string, error) { + var realPath string + var err error + if realPath, err = filepath.Abs(path); err != nil { + return "", fmt.Errorf("unable to get absolute path for %s: %s", path, err) + } + if realPath, err = filepath.EvalSymlinks(realPath); err != nil { + return "", fmt.Errorf("failed to canonicalise path for %s: %s", path, err) + } + realPathInfo, err := os.Stat(realPath) + if err != nil { + return "", fmt.Errorf("failed to stat target '%s' of '%s': %s", realPath, path, err) + } + if !realPathInfo.Mode().IsDir() { + return "", fmt.Errorf("canonical path points to a file '%s'", realPath) + } + return realPath, nil +} + +// CreateIfNotExists creates a file or a directory only if it does not already exist. +func CreateIfNotExists(path string, isDir bool) error { + if _, err := os.Stat(path); err != nil { + if os.IsNotExist(err) { + if isDir { + return os.MkdirAll(path, 0755) + } + if err := os.MkdirAll(filepath.Dir(path), 0755); err != nil { + return err + } + f, err := os.OpenFile(path, os.O_CREATE, 0755) + if err != nil { + return err + } + f.Close() + } + } + return nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/homedir/homedir.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/homedir/homedir.go new file mode 100644 index 0000000..dcae178 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/homedir/homedir.go @@ -0,0 +1,39 @@ +package homedir + +import ( + "os" + "runtime" + + "github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user" +) + +// Key returns the env var name for the user's home dir based on +// the platform being run on +func Key() string { + if runtime.GOOS == "windows" { + return "USERPROFILE" + } + return "HOME" +} + +// Get returns the home directory of the current user with the help of +// environment variables depending on the target operating system. +// Returned path should be used with "path/filepath" to form new paths. +func Get() string { + home := os.Getenv(Key()) + if home == "" && runtime.GOOS != "windows" { + if u, err := user.CurrentUser(); err == nil { + return u.Home + } + } + return home +} + +// GetShortcutString returns the string that is shortcut to user's home directory +// in the native shell of the platform running on. +func GetShortcutString() string { + if runtime.GOOS == "windows" { + return "%USERPROFILE%" // be careful while using in format functions + } + return "~" +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/fmt.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/fmt.go new file mode 100644 index 0000000..801132f --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/fmt.go @@ -0,0 +1,14 @@ +package ioutils + +import ( + "fmt" + "io" +) + +// FprintfIfNotEmpty prints the string value if it's not empty +func FprintfIfNotEmpty(w io.Writer, format, value string) (int, error) { + if value != "" { + return fmt.Fprintf(w, format, value) + } + return 0, nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/multireader.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/multireader.go new file mode 100644 index 0000000..f231aa9 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/multireader.go @@ -0,0 +1,226 @@ +package ioutils + +import ( + "bytes" + "fmt" + "io" + "os" +) + +type pos struct { + idx int + offset int64 +} + +type multiReadSeeker struct { + readers []io.ReadSeeker + pos *pos + posIdx map[io.ReadSeeker]int +} + +func (r *multiReadSeeker) Seek(offset int64, whence int) (int64, error) { + var tmpOffset int64 + switch whence { + case os.SEEK_SET: + for i, rdr := range r.readers { + // get size of the current reader + s, err := rdr.Seek(0, os.SEEK_END) + if err != nil { + return -1, err + } + + if offset > tmpOffset+s { + if i == len(r.readers)-1 { + rdrOffset := s + (offset - tmpOffset) + if _, err := rdr.Seek(rdrOffset, os.SEEK_SET); err != nil { + return -1, err + } + r.pos = &pos{i, rdrOffset} + return offset, nil + } + + tmpOffset += s + continue + } + + rdrOffset := offset - tmpOffset + idx := i + + rdr.Seek(rdrOffset, os.SEEK_SET) + // make sure all following readers are at 0 + for _, rdr := range r.readers[i+1:] { + rdr.Seek(0, os.SEEK_SET) + } + + if rdrOffset == s && i != len(r.readers)-1 { + idx += 1 + rdrOffset = 0 + } + r.pos = &pos{idx, rdrOffset} + return offset, nil + } + case os.SEEK_END: + for _, rdr := range r.readers { + s, err := rdr.Seek(0, os.SEEK_END) + if err != nil { + return -1, err + } + tmpOffset += s + } + r.Seek(tmpOffset+offset, os.SEEK_SET) + return tmpOffset + offset, nil + case os.SEEK_CUR: + if r.pos == nil { + return r.Seek(offset, os.SEEK_SET) + } + // Just return the current offset + if offset == 0 { + return r.getCurOffset() + } + + curOffset, err := r.getCurOffset() + if err != nil { + return -1, err + } + rdr, rdrOffset, err := r.getReaderForOffset(curOffset + offset) + if err != nil { + return -1, err + } + + r.pos = &pos{r.posIdx[rdr], rdrOffset} + return curOffset + offset, nil + default: + return -1, fmt.Errorf("Invalid whence: %d", whence) + } + + return -1, fmt.Errorf("Error seeking for whence: %d, offset: %d", whence, offset) +} + +func (r *multiReadSeeker) getReaderForOffset(offset int64) (io.ReadSeeker, int64, error) { + var rdr io.ReadSeeker + var rdrOffset int64 + + for i, rdr := range r.readers { + offsetTo, err := r.getOffsetToReader(rdr) + if err != nil { + return nil, -1, err + } + if offsetTo > offset { + rdr = r.readers[i-1] + rdrOffset = offsetTo - offset + break + } + + if rdr == r.readers[len(r.readers)-1] { + rdrOffset = offsetTo + offset + break + } + } + + return rdr, rdrOffset, nil +} + +func (r *multiReadSeeker) getCurOffset() (int64, error) { + var totalSize int64 + for _, rdr := range r.readers[:r.pos.idx+1] { + if r.posIdx[rdr] == r.pos.idx { + totalSize += r.pos.offset + break + } + + size, err := getReadSeekerSize(rdr) + if err != nil { + return -1, fmt.Errorf("error getting seeker size: %v", err) + } + totalSize += size + } + return totalSize, nil +} + +func (r *multiReadSeeker) getOffsetToReader(rdr io.ReadSeeker) (int64, error) { + var offset int64 + for _, r := range r.readers { + if r == rdr { + break + } + + size, err := getReadSeekerSize(rdr) + if err != nil { + return -1, err + } + offset += size + } + return offset, nil +} + +func (r *multiReadSeeker) Read(b []byte) (int, error) { + if r.pos == nil { + r.pos = &pos{0, 0} + } + + bCap := int64(cap(b)) + buf := bytes.NewBuffer(nil) + var rdr io.ReadSeeker + + for _, rdr = range r.readers[r.pos.idx:] { + readBytes, err := io.CopyN(buf, rdr, bCap) + if err != nil && err != io.EOF { + return -1, err + } + bCap -= readBytes + + if bCap == 0 { + break + } + } + + rdrPos, err := rdr.Seek(0, os.SEEK_CUR) + if err != nil { + return -1, err + } + r.pos = &pos{r.posIdx[rdr], rdrPos} + return buf.Read(b) +} + +func getReadSeekerSize(rdr io.ReadSeeker) (int64, error) { + // save the current position + pos, err := rdr.Seek(0, os.SEEK_CUR) + if err != nil { + return -1, err + } + + // get the size + size, err := rdr.Seek(0, os.SEEK_END) + if err != nil { + return -1, err + } + + // reset the position + if _, err := rdr.Seek(pos, os.SEEK_SET); err != nil { + return -1, err + } + return size, nil +} + +// MultiReadSeeker returns a ReadSeeker that's the logical concatenation of the provided +// input readseekers. After calling this method the initial position is set to the +// beginning of the first ReadSeeker. At the end of a ReadSeeker, Read always advances +// to the beginning of the next ReadSeeker and returns EOF at the end of the last ReadSeeker. +// Seek can be used over the sum of lengths of all readseekers. +// +// When a MultiReadSeeker is used, no Read and Seek operations should be made on +// its ReadSeeker components. Also, users should make no assumption on the state +// of individual readseekers while the MultiReadSeeker is used. +func MultiReadSeeker(readers ...io.ReadSeeker) io.ReadSeeker { + if len(readers) == 1 { + return readers[0] + } + idx := make(map[io.ReadSeeker]int) + for i, rdr := range readers { + idx[rdr] = i + } + return &multiReadSeeker{ + readers: readers, + posIdx: idx, + } +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/readers.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/readers.go new file mode 100644 index 0000000..ff09baa --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/readers.go @@ -0,0 +1,254 @@ +package ioutils + +import ( + "bytes" + "crypto/rand" + "crypto/sha256" + "encoding/hex" + "io" + "math/big" + "sync" + "time" +) + +type readCloserWrapper struct { + io.Reader + closer func() error +} + +func (r *readCloserWrapper) Close() error { + return r.closer() +} + +func NewReadCloserWrapper(r io.Reader, closer func() error) io.ReadCloser { + return &readCloserWrapper{ + Reader: r, + closer: closer, + } +} + +type readerErrWrapper struct { + reader io.Reader + closer func() +} + +func (r *readerErrWrapper) Read(p []byte) (int, error) { + n, err := r.reader.Read(p) + if err != nil { + r.closer() + } + return n, err +} + +func NewReaderErrWrapper(r io.Reader, closer func()) io.Reader { + return &readerErrWrapper{ + reader: r, + closer: closer, + } +} + +// bufReader allows the underlying reader to continue to produce +// output by pre-emptively reading from the wrapped reader. +// This is achieved by buffering this data in bufReader's +// expanding buffer. +type bufReader struct { + sync.Mutex + buf *bytes.Buffer + reader io.Reader + err error + wait sync.Cond + drainBuf []byte + reuseBuf []byte + maxReuse int64 + resetTimeout time.Duration + bufLenResetThreshold int64 + maxReadDataReset int64 +} + +func NewBufReader(r io.Reader) *bufReader { + var timeout int + if randVal, err := rand.Int(rand.Reader, big.NewInt(120)); err == nil { + timeout = int(randVal.Int64()) + 180 + } else { + timeout = 300 + } + reader := &bufReader{ + buf: &bytes.Buffer{}, + drainBuf: make([]byte, 1024), + reuseBuf: make([]byte, 4096), + maxReuse: 1000, + resetTimeout: time.Second * time.Duration(timeout), + bufLenResetThreshold: 100 * 1024, + maxReadDataReset: 10 * 1024 * 1024, + reader: r, + } + reader.wait.L = &reader.Mutex + go reader.drain() + return reader +} + +func NewBufReaderWithDrainbufAndBuffer(r io.Reader, drainBuffer []byte, buffer *bytes.Buffer) *bufReader { + reader := &bufReader{ + buf: buffer, + drainBuf: drainBuffer, + reader: r, + } + reader.wait.L = &reader.Mutex + go reader.drain() + return reader +} + +func (r *bufReader) drain() { + var ( + duration time.Duration + lastReset time.Time + now time.Time + reset bool + bufLen int64 + dataSinceReset int64 + maxBufLen int64 + reuseBufLen int64 + reuseCount int64 + ) + reuseBufLen = int64(len(r.reuseBuf)) + lastReset = time.Now() + for { + n, err := r.reader.Read(r.drainBuf) + dataSinceReset += int64(n) + r.Lock() + bufLen = int64(r.buf.Len()) + if bufLen > maxBufLen { + maxBufLen = bufLen + } + + // Avoid unbounded growth of the buffer over time. + // This has been discovered to be the only non-intrusive + // solution to the unbounded growth of the buffer. + // Alternative solutions such as compression, multiple + // buffers, channels and other similar pieces of code + // were reducing throughput, overall Docker performance + // or simply crashed Docker. + // This solution releases the buffer when specific + // conditions are met to avoid the continuous resizing + // of the buffer for long lived containers. + // + // Move data to the front of the buffer if it's + // smaller than what reuseBuf can store + if bufLen > 0 && reuseBufLen >= bufLen { + n, _ := r.buf.Read(r.reuseBuf) + r.buf.Write(r.reuseBuf[0:n]) + // Take action if the buffer has been reused too many + // times and if there's data in the buffer. + // The timeout is also used as means to avoid doing + // these operations more often or less often than + // required. + // The various conditions try to detect heavy activity + // in the buffer which might be indicators of heavy + // growth of the buffer. + } else if reuseCount >= r.maxReuse && bufLen > 0 { + now = time.Now() + duration = now.Sub(lastReset) + timeoutReached := duration >= r.resetTimeout + + // The timeout has been reached and the + // buffered data couldn't be moved to the front + // of the buffer, so the buffer gets reset. + if timeoutReached && bufLen > reuseBufLen { + reset = true + } + // The amount of buffered data is too high now, + // reset the buffer. + if timeoutReached && maxBufLen >= r.bufLenResetThreshold { + reset = true + } + // Reset the buffer if a certain amount of + // data has gone through the buffer since the + // last reset. + if timeoutReached && dataSinceReset >= r.maxReadDataReset { + reset = true + } + // The buffered data is moved to a fresh buffer, + // swap the old buffer with the new one and + // reset all counters. + if reset { + newbuf := &bytes.Buffer{} + newbuf.ReadFrom(r.buf) + r.buf = newbuf + lastReset = now + reset = false + dataSinceReset = 0 + maxBufLen = 0 + reuseCount = 0 + } + } + if err != nil { + r.err = err + } else { + r.buf.Write(r.drainBuf[0:n]) + } + reuseCount++ + r.wait.Signal() + r.Unlock() + callSchedulerIfNecessary() + if err != nil { + break + } + } +} + +func (r *bufReader) Read(p []byte) (n int, err error) { + r.Lock() + defer r.Unlock() + for { + n, err = r.buf.Read(p) + if n > 0 { + return n, err + } + if r.err != nil { + return 0, r.err + } + r.wait.Wait() + } +} + +func (r *bufReader) Close() error { + closer, ok := r.reader.(io.ReadCloser) + if !ok { + return nil + } + return closer.Close() +} + +func HashData(src io.Reader) (string, error) { + h := sha256.New() + if _, err := io.Copy(h, src); err != nil { + return "", err + } + return "sha256:" + hex.EncodeToString(h.Sum(nil)), nil +} + +type OnEOFReader struct { + Rc io.ReadCloser + Fn func() +} + +func (r *OnEOFReader) Read(p []byte) (n int, err error) { + n, err = r.Rc.Read(p) + if err == io.EOF { + r.runFunc() + } + return +} + +func (r *OnEOFReader) Close() error { + err := r.Rc.Close() + r.runFunc() + return err +} + +func (r *OnEOFReader) runFunc() { + if fn := r.Fn; fn != nil { + fn() + r.Fn = nil + } +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/scheduler.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/scheduler.go new file mode 100644 index 0000000..3c88f29 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/scheduler.go @@ -0,0 +1,6 @@ +// +build !gccgo + +package ioutils + +func callSchedulerIfNecessary() { +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/scheduler_gccgo.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/scheduler_gccgo.go new file mode 100644 index 0000000..c11d02b --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/scheduler_gccgo.go @@ -0,0 +1,13 @@ +// +build gccgo + +package ioutils + +import ( + "runtime" +) + +func callSchedulerIfNecessary() { + //allow or force Go scheduler to switch context, without explicitly + //forcing this will make it hang when using gccgo implementation + runtime.Gosched() +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/writeflusher.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/writeflusher.go new file mode 100644 index 0000000..2509547 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/writeflusher.go @@ -0,0 +1,47 @@ +package ioutils + +import ( + "io" + "net/http" + "sync" +) + +type WriteFlusher struct { + sync.Mutex + w io.Writer + flusher http.Flusher + flushed bool +} + +func (wf *WriteFlusher) Write(b []byte) (n int, err error) { + wf.Lock() + defer wf.Unlock() + n, err = wf.w.Write(b) + wf.flushed = true + wf.flusher.Flush() + return n, err +} + +// Flush the stream immediately. +func (wf *WriteFlusher) Flush() { + wf.Lock() + defer wf.Unlock() + wf.flushed = true + wf.flusher.Flush() +} + +func (wf *WriteFlusher) Flushed() bool { + wf.Lock() + defer wf.Unlock() + return wf.flushed +} + +func NewWriteFlusher(w io.Writer) *WriteFlusher { + var flusher http.Flusher + if f, ok := w.(http.Flusher); ok { + flusher = f + } else { + flusher = &NopFlusher{} + } + return &WriteFlusher{w: w, flusher: flusher} +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/writers.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/writers.go new file mode 100644 index 0000000..43fdc44 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils/writers.go @@ -0,0 +1,60 @@ +package ioutils + +import "io" + +type NopWriter struct{} + +func (*NopWriter) Write(buf []byte) (int, error) { + return len(buf), nil +} + +type nopWriteCloser struct { + io.Writer +} + +func (w *nopWriteCloser) Close() error { return nil } + +func NopWriteCloser(w io.Writer) io.WriteCloser { + return &nopWriteCloser{w} +} + +type NopFlusher struct{} + +func (f *NopFlusher) Flush() {} + +type writeCloserWrapper struct { + io.Writer + closer func() error +} + +func (r *writeCloserWrapper) Close() error { + return r.closer() +} + +func NewWriteCloserWrapper(r io.Writer, closer func() error) io.WriteCloser { + return &writeCloserWrapper{ + Writer: r, + closer: closer, + } +} + +// Wrap a concrete io.Writer and hold a count of the number +// of bytes written to the writer during a "session". +// This can be convenient when write return is masked +// (e.g., json.Encoder.Encode()) +type WriteCounter struct { + Count int64 + Writer io.Writer +} + +func NewWriteCounter(w io.Writer) *WriteCounter { + return &WriteCounter{ + Writer: w, + } +} + +func (wc *WriteCounter) Write(p []byte) (count int, err error) { + count, err = wc.Writer.Write(p) + wc.Count += int64(count) + return +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/mflag/LICENSE b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/mflag/LICENSE new file mode 100644 index 0000000..ac74d8f --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/mflag/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2014-2015 The Docker & Go Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/mflag/README.md b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/mflag/README.md new file mode 100644 index 0000000..da00efa --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/mflag/README.md @@ -0,0 +1,40 @@ +Package mflag (aka multiple-flag) implements command-line flag parsing. +It's an **hacky** fork of the [official golang package](http://golang.org/pkg/flag/) + +It adds: + +* both short and long flag version +`./example -s red` `./example --string blue` + +* multiple names for the same option +``` +$>./example -h +Usage of example: + -s, --string="": a simple string +``` + +___ +It is very flexible on purpose, so you can do things like: +``` +$>./example -h +Usage of example: + -s, -string, --string="": a simple string +``` + +Or: +``` +$>./example -h +Usage of example: + -oldflag, --newflag="": a simple string +``` + +You can also hide some flags from the usage, so if we want only `--newflag`: +``` +$>./example -h +Usage of example: + --newflag="": a simple string +$>./example -oldflag str +str +``` + +See [example.go](example/example.go) for more details. diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/mflag/flag.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/mflag/flag.go new file mode 100644 index 0000000..ebfa350 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/mflag/flag.go @@ -0,0 +1,1201 @@ +// Copyright 2014-2015 The Docker & Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package mflag implements command-line flag parsing. +// +// Usage: +// +// Define flags using flag.String(), Bool(), Int(), etc. +// +// This declares an integer flag, -f or --flagname, stored in the pointer ip, with type *int. +// import "flag /github.com/docker/docker/pkg/mflag" +// var ip = flag.Int([]string{"f", "-flagname"}, 1234, "help message for flagname") +// If you like, you can bind the flag to a variable using the Var() functions. +// var flagvar int +// func init() { +// // -flaghidden will work, but will be hidden from the usage +// flag.IntVar(&flagvar, []string{"f", "#flaghidden", "-flagname"}, 1234, "help message for flagname") +// } +// Or you can create custom flags that satisfy the Value interface (with +// pointer receivers) and couple them to flag parsing by +// flag.Var(&flagVal, []string{"name"}, "help message for flagname") +// For such flags, the default value is just the initial value of the variable. +// +// You can also add "deprecated" flags, they are still usable, but are not shown +// in the usage and will display a warning when you try to use them. `#` before +// an option means this option is deprecated, if there is an following option +// without `#` ahead, then that's the replacement, if not, it will just be removed: +// var ip = flag.Int([]string{"#f", "#flagname", "-flagname"}, 1234, "help message for flagname") +// this will display: `Warning: '-f' is deprecated, it will be replaced by '--flagname' soon. See usage.` or +// this will display: `Warning: '-flagname' is deprecated, it will be replaced by '--flagname' soon. See usage.` +// var ip = flag.Int([]string{"f", "#flagname"}, 1234, "help message for flagname") +// will display: `Warning: '-flagname' is deprecated, it will be removed soon. See usage.` +// so you can only use `-f`. +// +// You can also group one letter flags, bif you declare +// var v = flag.Bool([]string{"v", "-verbose"}, false, "help message for verbose") +// var s = flag.Bool([]string{"s", "-slow"}, false, "help message for slow") +// you will be able to use the -vs or -sv +// +// After all flags are defined, call +// flag.Parse() +// to parse the command line into the defined flags. +// +// Flags may then be used directly. If you're using the flags themselves, +// they are all pointers; if you bind to variables, they're values. +// fmt.Println("ip has value ", *ip) +// fmt.Println("flagvar has value ", flagvar) +// +// After parsing, the arguments after the flag are available as the +// slice flag.Args() or individually as flag.Arg(i). +// The arguments are indexed from 0 through flag.NArg()-1. +// +// Command line flag syntax: +// -flag +// -flag=x +// -flag="x" +// -flag='x' +// -flag x // non-boolean flags only +// One or two minus signs may be used; they are equivalent. +// The last form is not permitted for boolean flags because the +// meaning of the command +// cmd -x * +// will change if there is a file called 0, false, etc. You must +// use the -flag=false form to turn off a boolean flag. +// +// Flag parsing stops just before the first non-flag argument +// ("-" is a non-flag argument) or after the terminator "--". +// +// Integer flags accept 1234, 0664, 0x1234 and may be negative. +// Boolean flags may be 1, 0, t, f, true, false, TRUE, FALSE, True, False. +// Duration flags accept any input valid for time.ParseDuration. +// +// The default set of command-line flags is controlled by +// top-level functions. The FlagSet type allows one to define +// independent sets of flags, such as to implement subcommands +// in a command-line interface. The methods of FlagSet are +// analogous to the top-level functions for the command-line +// flag set. + +package mflag + +import ( + "errors" + "fmt" + "io" + "os" + "runtime" + "sort" + "strconv" + "strings" + "text/tabwriter" + "time" + + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/homedir" +) + +// ErrHelp is the error returned if the flag -help is invoked but no such flag is defined. +var ErrHelp = errors.New("flag: help requested") + +// ErrRetry is the error returned if you need to try letter by letter +var ErrRetry = errors.New("flag: retry") + +// -- bool Value +type boolValue bool + +func newBoolValue(val bool, p *bool) *boolValue { + *p = val + return (*boolValue)(p) +} + +func (b *boolValue) Set(s string) error { + v, err := strconv.ParseBool(s) + *b = boolValue(v) + return err +} + +func (b *boolValue) Get() interface{} { return bool(*b) } + +func (b *boolValue) String() string { return fmt.Sprintf("%v", *b) } + +func (b *boolValue) IsBoolFlag() bool { return true } + +// optional interface to indicate boolean flags that can be +// supplied without "=value" text +type boolFlag interface { + Value + IsBoolFlag() bool +} + +// -- int Value +type intValue int + +func newIntValue(val int, p *int) *intValue { + *p = val + return (*intValue)(p) +} + +func (i *intValue) Set(s string) error { + v, err := strconv.ParseInt(s, 0, 64) + *i = intValue(v) + return err +} + +func (i *intValue) Get() interface{} { return int(*i) } + +func (i *intValue) String() string { return fmt.Sprintf("%v", *i) } + +// -- int64 Value +type int64Value int64 + +func newInt64Value(val int64, p *int64) *int64Value { + *p = val + return (*int64Value)(p) +} + +func (i *int64Value) Set(s string) error { + v, err := strconv.ParseInt(s, 0, 64) + *i = int64Value(v) + return err +} + +func (i *int64Value) Get() interface{} { return int64(*i) } + +func (i *int64Value) String() string { return fmt.Sprintf("%v", *i) } + +// -- uint Value +type uintValue uint + +func newUintValue(val uint, p *uint) *uintValue { + *p = val + return (*uintValue)(p) +} + +func (i *uintValue) Set(s string) error { + v, err := strconv.ParseUint(s, 0, 64) + *i = uintValue(v) + return err +} + +func (i *uintValue) Get() interface{} { return uint(*i) } + +func (i *uintValue) String() string { return fmt.Sprintf("%v", *i) } + +// -- uint64 Value +type uint64Value uint64 + +func newUint64Value(val uint64, p *uint64) *uint64Value { + *p = val + return (*uint64Value)(p) +} + +func (i *uint64Value) Set(s string) error { + v, err := strconv.ParseUint(s, 0, 64) + *i = uint64Value(v) + return err +} + +func (i *uint64Value) Get() interface{} { return uint64(*i) } + +func (i *uint64Value) String() string { return fmt.Sprintf("%v", *i) } + +// -- string Value +type stringValue string + +func newStringValue(val string, p *string) *stringValue { + *p = val + return (*stringValue)(p) +} + +func (s *stringValue) Set(val string) error { + *s = stringValue(val) + return nil +} + +func (s *stringValue) Get() interface{} { return string(*s) } + +func (s *stringValue) String() string { return fmt.Sprintf("%s", *s) } + +// -- float64 Value +type float64Value float64 + +func newFloat64Value(val float64, p *float64) *float64Value { + *p = val + return (*float64Value)(p) +} + +func (f *float64Value) Set(s string) error { + v, err := strconv.ParseFloat(s, 64) + *f = float64Value(v) + return err +} + +func (f *float64Value) Get() interface{} { return float64(*f) } + +func (f *float64Value) String() string { return fmt.Sprintf("%v", *f) } + +// -- time.Duration Value +type durationValue time.Duration + +func newDurationValue(val time.Duration, p *time.Duration) *durationValue { + *p = val + return (*durationValue)(p) +} + +func (d *durationValue) Set(s string) error { + v, err := time.ParseDuration(s) + *d = durationValue(v) + return err +} + +func (d *durationValue) Get() interface{} { return time.Duration(*d) } + +func (d *durationValue) String() string { return (*time.Duration)(d).String() } + +// Value is the interface to the dynamic value stored in a flag. +// (The default value is represented as a string.) +// +// If a Value has an IsBoolFlag() bool method returning true, +// the command-line parser makes -name equivalent to -name=true +// rather than using the next command-line argument. +type Value interface { + String() string + Set(string) error +} + +// Getter is an interface that allows the contents of a Value to be retrieved. +// It wraps the Value interface, rather than being part of it, because it +// appeared after Go 1 and its compatibility rules. All Value types provided +// by this package satisfy the Getter interface. +type Getter interface { + Value + Get() interface{} +} + +// ErrorHandling defines how to handle flag parsing errors. +type ErrorHandling int + +// ErrorHandling strategies available when a flag parsing error occurs +const ( + ContinueOnError ErrorHandling = iota + ExitOnError + PanicOnError +) + +// A FlagSet represents a set of defined flags. The zero value of a FlagSet +// has no name and has ContinueOnError error handling. +type FlagSet struct { + // Usage is the function called when an error occurs while parsing flags. + // The field is a function (not a method) that may be changed to point to + // a custom error handler. + Usage func() + ShortUsage func() + + name string + parsed bool + actual map[string]*Flag + formal map[string]*Flag + args []string // arguments after flags + errorHandling ErrorHandling + output io.Writer // nil means stderr; use Out() accessor + nArgRequirements []nArgRequirement +} + +// A Flag represents the state of a flag. +type Flag struct { + Names []string // name as it appears on command line + Usage string // help message + Value Value // value as set + DefValue string // default value (as text); for usage message +} + +type flagSlice []string + +func (p flagSlice) Len() int { return len(p) } +func (p flagSlice) Less(i, j int) bool { + pi, pj := strings.TrimPrefix(p[i], "-"), strings.TrimPrefix(p[j], "-") + lpi, lpj := strings.ToLower(pi), strings.ToLower(pj) + if lpi != lpj { + return lpi < lpj + } + return pi < pj +} +func (p flagSlice) Swap(i, j int) { p[i], p[j] = p[j], p[i] } + +// sortFlags returns the flags as a slice in lexicographical sorted order. +func sortFlags(flags map[string]*Flag) []*Flag { + var list flagSlice + + // The sorted list is based on the first name, when flag map might use the other names. + nameMap := make(map[string]string) + + for n, f := range flags { + fName := strings.TrimPrefix(f.Names[0], "#") + nameMap[fName] = n + if len(f.Names) == 1 { + list = append(list, fName) + continue + } + + found := false + for _, name := range list { + if name == fName { + found = true + break + } + } + if !found { + list = append(list, fName) + } + } + sort.Sort(list) + result := make([]*Flag, len(list)) + for i, name := range list { + result[i] = flags[nameMap[name]] + } + return result +} + +// Name returns the name of the FlagSet. +func (fs *FlagSet) Name() string { + return fs.name +} + +// Out returns the destination for usage and error messages. +func (fs *FlagSet) Out() io.Writer { + if fs.output == nil { + return os.Stderr + } + return fs.output +} + +// SetOutput sets the destination for usage and error messages. +// If output is nil, os.Stderr is used. +func (fs *FlagSet) SetOutput(output io.Writer) { + fs.output = output +} + +// VisitAll visits the flags in lexicographical order, calling fn for each. +// It visits all flags, even those not set. +func (fs *FlagSet) VisitAll(fn func(*Flag)) { + for _, flag := range sortFlags(fs.formal) { + fn(flag) + } +} + +// VisitAll visits the command-line flags in lexicographical order, calling +// fn for each. It visits all flags, even those not set. +func VisitAll(fn func(*Flag)) { + CommandLine.VisitAll(fn) +} + +// Visit visits the flags in lexicographical order, calling fn for each. +// It visits only those flags that have been set. +func (fs *FlagSet) Visit(fn func(*Flag)) { + for _, flag := range sortFlags(fs.actual) { + fn(flag) + } +} + +// Visit visits the command-line flags in lexicographical order, calling fn +// for each. It visits only those flags that have been set. +func Visit(fn func(*Flag)) { + CommandLine.Visit(fn) +} + +// Lookup returns the Flag structure of the named flag, returning nil if none exists. +func (fs *FlagSet) Lookup(name string) *Flag { + return fs.formal[name] +} + +// IsSet indicates whether the specified flag is set in the given FlagSet +func (fs *FlagSet) IsSet(name string) bool { + return fs.actual[name] != nil +} + +// Lookup returns the Flag structure of the named command-line flag, +// returning nil if none exists. +func Lookup(name string) *Flag { + return CommandLine.formal[name] +} + +// IsSet indicates whether the specified flag was specified at all on the cmd line. +func IsSet(name string) bool { + return CommandLine.IsSet(name) +} + +type nArgRequirementType int + +// Indicator used to pass to BadArgs function +const ( + Exact nArgRequirementType = iota + Max + Min +) + +type nArgRequirement struct { + Type nArgRequirementType + N int +} + +// Require adds a requirement about the number of arguments for the FlagSet. +// The first parameter can be Exact, Max, or Min to respectively specify the exact, +// the maximum, or the minimal number of arguments required. +// The actual check is done in FlagSet.CheckArgs(). +func (fs *FlagSet) Require(nArgRequirementType nArgRequirementType, nArg int) { + fs.nArgRequirements = append(fs.nArgRequirements, nArgRequirement{nArgRequirementType, nArg}) +} + +// CheckArgs uses the requirements set by FlagSet.Require() to validate +// the number of arguments. If the requirements are not met, +// an error message string is returned. +func (fs *FlagSet) CheckArgs() (message string) { + for _, req := range fs.nArgRequirements { + var arguments string + if req.N == 1 { + arguments = "1 argument" + } else { + arguments = fmt.Sprintf("%d arguments", req.N) + } + + str := func(kind string) string { + return fmt.Sprintf("%q requires %s%s", fs.name, kind, arguments) + } + + switch req.Type { + case Exact: + if fs.NArg() != req.N { + return str("") + } + case Max: + if fs.NArg() > req.N { + return str("a maximum of ") + } + case Min: + if fs.NArg() < req.N { + return str("a minimum of ") + } + } + } + return "" +} + +// Set sets the value of the named flag. +func (fs *FlagSet) Set(name, value string) error { + flag, ok := fs.formal[name] + if !ok { + return fmt.Errorf("no such flag -%v", name) + } + if err := flag.Value.Set(value); err != nil { + return err + } + if fs.actual == nil { + fs.actual = make(map[string]*Flag) + } + fs.actual[name] = flag + return nil +} + +// Set sets the value of the named command-line flag. +func Set(name, value string) error { + return CommandLine.Set(name, value) +} + +// PrintDefaults prints, to standard error unless configured +// otherwise, the default values of all defined flags in the set. +func (fs *FlagSet) PrintDefaults() { + writer := tabwriter.NewWriter(fs.Out(), 20, 1, 3, ' ', 0) + home := homedir.Get() + + // Don't substitute when HOME is / + if runtime.GOOS != "windows" && home == "/" { + home = "" + } + + // Add a blank line between cmd description and list of options + if fs.FlagCount() > 0 { + fmt.Fprintln(writer, "") + } + + fs.VisitAll(func(flag *Flag) { + format := " -%s=%s" + names := []string{} + for _, name := range flag.Names { + if name[0] != '#' { + names = append(names, name) + } + } + if len(names) > 0 && len(flag.Usage) > 0 { + val := flag.DefValue + + if home != "" && strings.HasPrefix(val, home) { + val = homedir.GetShortcutString() + val[len(home):] + } + + fmt.Fprintf(writer, format, strings.Join(names, ", -"), val) + for i, line := range strings.Split(flag.Usage, "\n") { + if i != 0 { + line = " " + line + } + fmt.Fprintln(writer, "\t", line) + } + } + }) + writer.Flush() +} + +// PrintDefaults prints to standard error the default values of all defined command-line flags. +func PrintDefaults() { + CommandLine.PrintDefaults() +} + +// defaultUsage is the default function to print a usage message. +func defaultUsage(fs *FlagSet) { + if fs.name == "" { + fmt.Fprintf(fs.Out(), "Usage:\n") + } else { + fmt.Fprintf(fs.Out(), "Usage of %s:\n", fs.name) + } + fs.PrintDefaults() +} + +// NOTE: Usage is not just defaultUsage(CommandLine) +// because it serves (via godoc flag Usage) as the example +// for how to write your own usage function. + +// Usage prints to standard error a usage message documenting all defined command-line flags. +// The function is a variable that may be changed to point to a custom function. +var Usage = func() { + fmt.Fprintf(CommandLine.Out(), "Usage of %s:\n", os.Args[0]) + PrintDefaults() +} + +// Usage prints to standard error a usage message documenting the standard command layout +// The function is a variable that may be changed to point to a custom function. +var ShortUsage = func() { + fmt.Fprintf(CommandLine.output, "Usage of %s:\n", os.Args[0]) +} + +// FlagCount returns the number of flags that have been defined. +func (fs *FlagSet) FlagCount() int { return len(sortFlags(fs.formal)) } + +// FlagCountUndeprecated returns the number of undeprecated flags that have been defined. +func (fs *FlagSet) FlagCountUndeprecated() int { + count := 0 + for _, flag := range sortFlags(fs.formal) { + for _, name := range flag.Names { + if name[0] != '#' { + count++ + break + } + } + } + return count +} + +// NFlag returns the number of flags that have been set. +func (fs *FlagSet) NFlag() int { return len(fs.actual) } + +// NFlag returns the number of command-line flags that have been set. +func NFlag() int { return len(CommandLine.actual) } + +// Arg returns the i'th argument. Arg(0) is the first remaining argument +// after flags have been processed. +func (fs *FlagSet) Arg(i int) string { + if i < 0 || i >= len(fs.args) { + return "" + } + return fs.args[i] +} + +// Arg returns the i'th command-line argument. Arg(0) is the first remaining argument +// after flags have been processed. +func Arg(i int) string { + return CommandLine.Arg(i) +} + +// NArg is the number of arguments remaining after flags have been processed. +func (fs *FlagSet) NArg() int { return len(fs.args) } + +// NArg is the number of arguments remaining after flags have been processed. +func NArg() int { return len(CommandLine.args) } + +// Args returns the non-flag arguments. +func (fs *FlagSet) Args() []string { return fs.args } + +// Args returns the non-flag command-line arguments. +func Args() []string { return CommandLine.args } + +// BoolVar defines a bool flag with specified name, default value, and usage string. +// The argument p points to a bool variable in which to store the value of the flag. +func (fs *FlagSet) BoolVar(p *bool, names []string, value bool, usage string) { + fs.Var(newBoolValue(value, p), names, usage) +} + +// BoolVar defines a bool flag with specified name, default value, and usage string. +// The argument p points to a bool variable in which to store the value of the flag. +func BoolVar(p *bool, names []string, value bool, usage string) { + CommandLine.Var(newBoolValue(value, p), names, usage) +} + +// Bool defines a bool flag with specified name, default value, and usage string. +// The return value is the address of a bool variable that stores the value of the flag. +func (fs *FlagSet) Bool(names []string, value bool, usage string) *bool { + p := new(bool) + fs.BoolVar(p, names, value, usage) + return p +} + +// Bool defines a bool flag with specified name, default value, and usage string. +// The return value is the address of a bool variable that stores the value of the flag. +func Bool(names []string, value bool, usage string) *bool { + return CommandLine.Bool(names, value, usage) +} + +// IntVar defines an int flag with specified name, default value, and usage string. +// The argument p points to an int variable in which to store the value of the flag. +func (fs *FlagSet) IntVar(p *int, names []string, value int, usage string) { + fs.Var(newIntValue(value, p), names, usage) +} + +// IntVar defines an int flag with specified name, default value, and usage string. +// The argument p points to an int variable in which to store the value of the flag. +func IntVar(p *int, names []string, value int, usage string) { + CommandLine.Var(newIntValue(value, p), names, usage) +} + +// Int defines an int flag with specified name, default value, and usage string. +// The return value is the address of an int variable that stores the value of the flag. +func (fs *FlagSet) Int(names []string, value int, usage string) *int { + p := new(int) + fs.IntVar(p, names, value, usage) + return p +} + +// Int defines an int flag with specified name, default value, and usage string. +// The return value is the address of an int variable that stores the value of the flag. +func Int(names []string, value int, usage string) *int { + return CommandLine.Int(names, value, usage) +} + +// Int64Var defines an int64 flag with specified name, default value, and usage string. +// The argument p points to an int64 variable in which to store the value of the flag. +func (fs *FlagSet) Int64Var(p *int64, names []string, value int64, usage string) { + fs.Var(newInt64Value(value, p), names, usage) +} + +// Int64Var defines an int64 flag with specified name, default value, and usage string. +// The argument p points to an int64 variable in which to store the value of the flag. +func Int64Var(p *int64, names []string, value int64, usage string) { + CommandLine.Var(newInt64Value(value, p), names, usage) +} + +// Int64 defines an int64 flag with specified name, default value, and usage string. +// The return value is the address of an int64 variable that stores the value of the flag. +func (fs *FlagSet) Int64(names []string, value int64, usage string) *int64 { + p := new(int64) + fs.Int64Var(p, names, value, usage) + return p +} + +// Int64 defines an int64 flag with specified name, default value, and usage string. +// The return value is the address of an int64 variable that stores the value of the flag. +func Int64(names []string, value int64, usage string) *int64 { + return CommandLine.Int64(names, value, usage) +} + +// UintVar defines a uint flag with specified name, default value, and usage string. +// The argument p points to a uint variable in which to store the value of the flag. +func (fs *FlagSet) UintVar(p *uint, names []string, value uint, usage string) { + fs.Var(newUintValue(value, p), names, usage) +} + +// UintVar defines a uint flag with specified name, default value, and usage string. +// The argument p points to a uint variable in which to store the value of the flag. +func UintVar(p *uint, names []string, value uint, usage string) { + CommandLine.Var(newUintValue(value, p), names, usage) +} + +// Uint defines a uint flag with specified name, default value, and usage string. +// The return value is the address of a uint variable that stores the value of the flag. +func (fs *FlagSet) Uint(names []string, value uint, usage string) *uint { + p := new(uint) + fs.UintVar(p, names, value, usage) + return p +} + +// Uint defines a uint flag with specified name, default value, and usage string. +// The return value is the address of a uint variable that stores the value of the flag. +func Uint(names []string, value uint, usage string) *uint { + return CommandLine.Uint(names, value, usage) +} + +// Uint64Var defines a uint64 flag with specified name, default value, and usage string. +// The argument p points to a uint64 variable in which to store the value of the flag. +func (fs *FlagSet) Uint64Var(p *uint64, names []string, value uint64, usage string) { + fs.Var(newUint64Value(value, p), names, usage) +} + +// Uint64Var defines a uint64 flag with specified name, default value, and usage string. +// The argument p points to a uint64 variable in which to store the value of the flag. +func Uint64Var(p *uint64, names []string, value uint64, usage string) { + CommandLine.Var(newUint64Value(value, p), names, usage) +} + +// Uint64 defines a uint64 flag with specified name, default value, and usage string. +// The return value is the address of a uint64 variable that stores the value of the flag. +func (fs *FlagSet) Uint64(names []string, value uint64, usage string) *uint64 { + p := new(uint64) + fs.Uint64Var(p, names, value, usage) + return p +} + +// Uint64 defines a uint64 flag with specified name, default value, and usage string. +// The return value is the address of a uint64 variable that stores the value of the flag. +func Uint64(names []string, value uint64, usage string) *uint64 { + return CommandLine.Uint64(names, value, usage) +} + +// StringVar defines a string flag with specified name, default value, and usage string. +// The argument p points to a string variable in which to store the value of the flag. +func (fs *FlagSet) StringVar(p *string, names []string, value string, usage string) { + fs.Var(newStringValue(value, p), names, usage) +} + +// StringVar defines a string flag with specified name, default value, and usage string. +// The argument p points to a string variable in which to store the value of the flag. +func StringVar(p *string, names []string, value string, usage string) { + CommandLine.Var(newStringValue(value, p), names, usage) +} + +// String defines a string flag with specified name, default value, and usage string. +// The return value is the address of a string variable that stores the value of the flag. +func (fs *FlagSet) String(names []string, value string, usage string) *string { + p := new(string) + fs.StringVar(p, names, value, usage) + return p +} + +// String defines a string flag with specified name, default value, and usage string. +// The return value is the address of a string variable that stores the value of the flag. +func String(names []string, value string, usage string) *string { + return CommandLine.String(names, value, usage) +} + +// Float64Var defines a float64 flag with specified name, default value, and usage string. +// The argument p points to a float64 variable in which to store the value of the flag. +func (fs *FlagSet) Float64Var(p *float64, names []string, value float64, usage string) { + fs.Var(newFloat64Value(value, p), names, usage) +} + +// Float64Var defines a float64 flag with specified name, default value, and usage string. +// The argument p points to a float64 variable in which to store the value of the flag. +func Float64Var(p *float64, names []string, value float64, usage string) { + CommandLine.Var(newFloat64Value(value, p), names, usage) +} + +// Float64 defines a float64 flag with specified name, default value, and usage string. +// The return value is the address of a float64 variable that stores the value of the flag. +func (fs *FlagSet) Float64(names []string, value float64, usage string) *float64 { + p := new(float64) + fs.Float64Var(p, names, value, usage) + return p +} + +// Float64 defines a float64 flag with specified name, default value, and usage string. +// The return value is the address of a float64 variable that stores the value of the flag. +func Float64(names []string, value float64, usage string) *float64 { + return CommandLine.Float64(names, value, usage) +} + +// DurationVar defines a time.Duration flag with specified name, default value, and usage string. +// The argument p points to a time.Duration variable in which to store the value of the flag. +func (fs *FlagSet) DurationVar(p *time.Duration, names []string, value time.Duration, usage string) { + fs.Var(newDurationValue(value, p), names, usage) +} + +// DurationVar defines a time.Duration flag with specified name, default value, and usage string. +// The argument p points to a time.Duration variable in which to store the value of the flag. +func DurationVar(p *time.Duration, names []string, value time.Duration, usage string) { + CommandLine.Var(newDurationValue(value, p), names, usage) +} + +// Duration defines a time.Duration flag with specified name, default value, and usage string. +// The return value is the address of a time.Duration variable that stores the value of the flag. +func (fs *FlagSet) Duration(names []string, value time.Duration, usage string) *time.Duration { + p := new(time.Duration) + fs.DurationVar(p, names, value, usage) + return p +} + +// Duration defines a time.Duration flag with specified name, default value, and usage string. +// The return value is the address of a time.Duration variable that stores the value of the flag. +func Duration(names []string, value time.Duration, usage string) *time.Duration { + return CommandLine.Duration(names, value, usage) +} + +// Var defines a flag with the specified name and usage string. The type and +// value of the flag are represented by the first argument, of type Value, which +// typically holds a user-defined implementation of Value. For instance, the +// caller could create a flag that turns a comma-separated string into a slice +// of strings by giving the slice the methods of Value; in particular, Set would +// decompose the comma-separated string into the slice. +func (fs *FlagSet) Var(value Value, names []string, usage string) { + // Remember the default value as a string; it won't change. + flag := &Flag{names, usage, value, value.String()} + for _, name := range names { + name = strings.TrimPrefix(name, "#") + _, alreadythere := fs.formal[name] + if alreadythere { + var msg string + if fs.name == "" { + msg = fmt.Sprintf("flag redefined: %s", name) + } else { + msg = fmt.Sprintf("%s flag redefined: %s", fs.name, name) + } + fmt.Fprintln(fs.Out(), msg) + panic(msg) // Happens only if flags are declared with identical names + } + if fs.formal == nil { + fs.formal = make(map[string]*Flag) + } + fs.formal[name] = flag + } +} + +// Var defines a flag with the specified name and usage string. The type and +// value of the flag are represented by the first argument, of type Value, which +// typically holds a user-defined implementation of Value. For instance, the +// caller could create a flag that turns a comma-separated string into a slice +// of strings by giving the slice the methods of Value; in particular, Set would +// decompose the comma-separated string into the slice. +func Var(value Value, names []string, usage string) { + CommandLine.Var(value, names, usage) +} + +// failf prints to standard error a formatted error and usage message and +// returns the error. +func (fs *FlagSet) failf(format string, a ...interface{}) error { + err := fmt.Errorf(format, a...) + fmt.Fprintln(fs.Out(), err) + if os.Args[0] == fs.name { + fmt.Fprintf(fs.Out(), "See '%s --help'.\n", os.Args[0]) + } else { + fmt.Fprintf(fs.Out(), "See '%s %s --help'.\n", os.Args[0], fs.name) + } + return err +} + +// usage calls the Usage method for the flag set, or the usage function if +// the flag set is CommandLine. +func (fs *FlagSet) usage() { + if fs == CommandLine { + Usage() + } else if fs.Usage == nil { + defaultUsage(fs) + } else { + fs.Usage() + } +} + +func trimQuotes(str string) string { + if len(str) == 0 { + return str + } + type quote struct { + start, end byte + } + + // All valid quote types. + quotes := []quote{ + // Double quotes + { + start: '"', + end: '"', + }, + + // Single quotes + { + start: '\'', + end: '\'', + }, + } + + for _, quote := range quotes { + // Only strip if outermost match. + if str[0] == quote.start && str[len(str)-1] == quote.end { + str = str[1 : len(str)-1] + break + } + } + + return str +} + +// parseOne parses one flag. It reports whether a flag was seen. +func (fs *FlagSet) parseOne() (bool, string, error) { + if len(fs.args) == 0 { + return false, "", nil + } + s := fs.args[0] + if len(s) == 0 || s[0] != '-' || len(s) == 1 { + return false, "", nil + } + if s[1] == '-' && len(s) == 2 { // "--" terminates the flags + fs.args = fs.args[1:] + return false, "", nil + } + name := s[1:] + if len(name) == 0 || name[0] == '=' { + return false, "", fs.failf("bad flag syntax: %s", s) + } + + // it's a flag. does it have an argument? + fs.args = fs.args[1:] + hasValue := false + value := "" + if i := strings.Index(name, "="); i != -1 { + value = trimQuotes(name[i+1:]) + hasValue = true + name = name[:i] + } + + m := fs.formal + flag, alreadythere := m[name] // BUG + if !alreadythere { + if name == "-help" || name == "help" || name == "h" { // special case for nice help message. + fs.usage() + return false, "", ErrHelp + } + if len(name) > 0 && name[0] == '-' { + return false, "", fs.failf("flag provided but not defined: -%s", name) + } + return false, name, ErrRetry + } + if fv, ok := flag.Value.(boolFlag); ok && fv.IsBoolFlag() { // special case: doesn't need an arg + if hasValue { + if err := fv.Set(value); err != nil { + return false, "", fs.failf("invalid boolean value %q for -%s: %v", value, name, err) + } + } else { + fv.Set("true") + } + } else { + // It must have a value, which might be the next argument. + if !hasValue && len(fs.args) > 0 { + // value is the next arg + hasValue = true + value, fs.args = fs.args[0], fs.args[1:] + } + if !hasValue { + return false, "", fs.failf("flag needs an argument: -%s", name) + } + if err := flag.Value.Set(value); err != nil { + return false, "", fs.failf("invalid value %q for flag -%s: %v", value, name, err) + } + } + if fs.actual == nil { + fs.actual = make(map[string]*Flag) + } + fs.actual[name] = flag + for i, n := range flag.Names { + if n == fmt.Sprintf("#%s", name) { + replacement := "" + for j := i; j < len(flag.Names); j++ { + if flag.Names[j][0] != '#' { + replacement = flag.Names[j] + break + } + } + if replacement != "" { + fmt.Fprintf(fs.Out(), "Warning: '-%s' is deprecated, it will be replaced by '-%s' soon. See usage.\n", name, replacement) + } else { + fmt.Fprintf(fs.Out(), "Warning: '-%s' is deprecated, it will be removed soon. See usage.\n", name) + } + } + } + return true, "", nil +} + +// Parse parses flag definitions from the argument list, which should not +// include the command name. Must be called after all flags in the FlagSet +// are defined and before flags are accessed by the program. +// The return value will be ErrHelp if -help was set but not defined. +func (fs *FlagSet) Parse(arguments []string) error { + fs.parsed = true + fs.args = arguments + for { + seen, name, err := fs.parseOne() + if seen { + continue + } + if err == nil { + break + } + if err == ErrRetry { + if len(name) > 1 { + err = nil + for _, letter := range strings.Split(name, "") { + fs.args = append([]string{"-" + letter}, fs.args...) + seen2, _, err2 := fs.parseOne() + if seen2 { + continue + } + if err2 != nil { + err = fs.failf("flag provided but not defined: -%s", name) + break + } + } + if err == nil { + continue + } + } else { + err = fs.failf("flag provided but not defined: -%s", name) + } + } + switch fs.errorHandling { + case ContinueOnError: + return err + case ExitOnError: + os.Exit(2) + case PanicOnError: + panic(err) + } + } + return nil +} + +// ParseFlags is a utility function that adds a help flag if withHelp is true, +// calls fs.Parse(args) and prints a relevant error message if there are +// incorrect number of arguments. It returns error only if error handling is +// set to ContinueOnError and parsing fails. If error handling is set to +// ExitOnError, it's safe to ignore the return value. +func (fs *FlagSet) ParseFlags(args []string, withHelp bool) error { + var help *bool + if withHelp { + help = fs.Bool([]string{"#help", "-help"}, false, "Print usage") + } + if err := fs.Parse(args); err != nil { + return err + } + if help != nil && *help { + fs.SetOutput(os.Stdout) + fs.Usage() + os.Exit(0) + } + if str := fs.CheckArgs(); str != "" { + fs.SetOutput(os.Stderr) + fs.ReportError(str, withHelp) + fs.ShortUsage() + os.Exit(1) + } + return nil +} + +// ReportError is a utility method that prints a user-friendly message +// containing the error that occured during parsing and a suggestion to get help +func (fs *FlagSet) ReportError(str string, withHelp bool) { + if withHelp { + if os.Args[0] == fs.Name() { + str += ".\nSee '" + os.Args[0] + " --help'" + } else { + str += ".\nSee '" + os.Args[0] + " " + fs.Name() + " --help'" + } + } + fmt.Fprintf(fs.Out(), "docker: %s.\n", str) +} + +// Parsed reports whether fs.Parse has been called. +func (fs *FlagSet) Parsed() bool { + return fs.parsed +} + +// Parse parses the command-line flags from os.Args[1:]. Must be called +// after all flags are defined and before flags are accessed by the program. +func Parse() { + // Ignore errors; CommandLine is set for ExitOnError. + CommandLine.Parse(os.Args[1:]) +} + +// Parsed returns true if the command-line flags have been parsed. +func Parsed() bool { + return CommandLine.Parsed() +} + +// CommandLine is the default set of command-line flags, parsed from os.Args. +// The top-level functions such as BoolVar, Arg, and on are wrappers for the +// methods of CommandLine. +var CommandLine = NewFlagSet(os.Args[0], ExitOnError) + +// NewFlagSet returns a new, empty flag set with the specified name and +// error handling property. +func NewFlagSet(name string, errorHandling ErrorHandling) *FlagSet { + f := &FlagSet{ + name: name, + errorHandling: errorHandling, + } + return f +} + +// Init sets the name and error handling property for a flag set. +// By default, the zero FlagSet uses an empty name and the +// ContinueOnError error handling policy. +func (fs *FlagSet) Init(name string, errorHandling ErrorHandling) { + fs.name = name + fs.errorHandling = errorHandling +} + +type mergeVal struct { + Value + key string + fset *FlagSet +} + +func (v mergeVal) Set(s string) error { + return v.fset.Set(v.key, s) +} + +func (v mergeVal) IsBoolFlag() bool { + if b, ok := v.Value.(boolFlag); ok { + return b.IsBoolFlag() + } + return false +} + +// Merge is an helper function that merges n FlagSets into a single dest FlagSet +// In case of name collision between the flagsets it will apply +// the destination FlagSet's errorHandling behaviour. +func Merge(dest *FlagSet, flagsets ...*FlagSet) error { + for _, fset := range flagsets { + for k, f := range fset.formal { + if _, ok := dest.formal[k]; ok { + var err error + if fset.name == "" { + err = fmt.Errorf("flag redefined: %s", k) + } else { + err = fmt.Errorf("%s flag redefined: %s", fset.name, k) + } + fmt.Fprintln(fset.Out(), err.Error()) + // Happens only if flags are declared with identical names + switch dest.errorHandling { + case ContinueOnError: + return err + case ExitOnError: + os.Exit(2) + case PanicOnError: + panic(err) + } + } + newF := *f + newF.Value = mergeVal{f.Value, k, fset} + dest.formal[k] = &newF + } + } + return nil +} + +// IsEmpty reports if the FlagSet is actually empty. +func (fs *FlagSet) IsEmpty() bool { + return len(fs.actual) == 0 +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/parsers/parsers.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/parsers/parsers.go new file mode 100644 index 0000000..e326a11 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/parsers/parsers.go @@ -0,0 +1,187 @@ +// Package parsers provides helper functions to parse and validate different type +// of string. It can be hosts, unix addresses, tcp addresses, filters, kernel +// operating system versions. +package parsers + +import ( + "fmt" + "net/url" + "path" + "runtime" + "strconv" + "strings" +) + +// ParseHost parses the specified address and returns an address that will be used as the host. +// Depending of the address specified, will use the defaultTCPAddr or defaultUnixAddr +// FIXME: Change this not to receive default value as parameter +func ParseHost(defaultTCPAddr, defaultUnixAddr, addr string) (string, error) { + addr = strings.TrimSpace(addr) + if addr == "" { + if runtime.GOOS != "windows" { + addr = fmt.Sprintf("unix://%s", defaultUnixAddr) + } else { + // Note - defaultTCPAddr already includes tcp:// prefix + addr = defaultTCPAddr + } + } + addrParts := strings.Split(addr, "://") + if len(addrParts) == 1 { + addrParts = []string{"tcp", addrParts[0]} + } + + switch addrParts[0] { + case "tcp": + return ParseTCPAddr(addrParts[1], defaultTCPAddr) + case "unix": + return ParseUnixAddr(addrParts[1], defaultUnixAddr) + case "fd": + return addr, nil + default: + return "", fmt.Errorf("Invalid bind address format: %s", addr) + } +} + +// ParseUnixAddr parses and validates that the specified address is a valid UNIX +// socket address. It returns a formatted UNIX socket address, either using the +// address parsed from addr, or the contents of defaultAddr if addr is a blank +// string. +func ParseUnixAddr(addr string, defaultAddr string) (string, error) { + addr = strings.TrimPrefix(addr, "unix://") + if strings.Contains(addr, "://") { + return "", fmt.Errorf("Invalid proto, expected unix: %s", addr) + } + if addr == "" { + addr = defaultAddr + } + return fmt.Sprintf("unix://%s", addr), nil +} + +// ParseTCPAddr parses and validates that the specified address is a valid TCP +// address. It returns a formatted TCP address, either using the address parsed +// from addr, or the contents of defaultAddr if addr is a blank string. +func ParseTCPAddr(addr string, defaultAddr string) (string, error) { + addr = strings.TrimPrefix(addr, "tcp://") + if strings.Contains(addr, "://") || addr == "" { + return "", fmt.Errorf("Invalid proto, expected tcp: %s", addr) + } + + u, err := url.Parse("tcp://" + addr) + if err != nil { + return "", err + } + hostParts := strings.Split(u.Host, ":") + if len(hostParts) != 2 { + return "", fmt.Errorf("Invalid bind address format: %s", addr) + } + host := hostParts[0] + if host == "" { + host = defaultAddr + } + + p, err := strconv.Atoi(hostParts[1]) + if err != nil && p == 0 { + return "", fmt.Errorf("Invalid bind address format: %s", addr) + } + return fmt.Sprintf("tcp://%s:%d%s", host, p, u.Path), nil +} + +// ParseRepositoryTag gets a repos name and returns the right reposName + tag|digest +// The tag can be confusing because of a port in a repository name. +// Ex: localhost.localdomain:5000/samalba/hipache:latest +// Digest ex: localhost:5000/foo/bar@sha256:bc8813ea7b3603864987522f02a76101c17ad122e1c46d790efc0fca78ca7bfb +func ParseRepositoryTag(repos string) (string, string) { + n := strings.Index(repos, "@") + if n >= 0 { + parts := strings.Split(repos, "@") + return parts[0], parts[1] + } + n = strings.LastIndex(repos, ":") + if n < 0 { + return repos, "" + } + if tag := repos[n+1:]; !strings.Contains(tag, "/") { + return repos[:n], tag + } + return repos, "" +} + +// PartParser parses and validates the specified string (data) using the specified template +// e.g. ip:public:private -> 192.168.0.1:80:8000 +func PartParser(template, data string) (map[string]string, error) { + // ip:public:private + var ( + templateParts = strings.Split(template, ":") + parts = strings.Split(data, ":") + out = make(map[string]string, len(templateParts)) + ) + if len(parts) != len(templateParts) { + return nil, fmt.Errorf("Invalid format to parse. %s should match template %s", data, template) + } + + for i, t := range templateParts { + value := "" + if len(parts) > i { + value = parts[i] + } + out[t] = value + } + return out, nil +} + +// ParseKeyValueOpt parses and validates the specified string as a key/value pair (key=value) +func ParseKeyValueOpt(opt string) (string, string, error) { + parts := strings.SplitN(opt, "=", 2) + if len(parts) != 2 { + return "", "", fmt.Errorf("Unable to parse key/value option: %s", opt) + } + return strings.TrimSpace(parts[0]), strings.TrimSpace(parts[1]), nil +} + +// ParsePortRange parses and validates the specified string as a port-range (8000-9000) +func ParsePortRange(ports string) (uint64, uint64, error) { + if ports == "" { + return 0, 0, fmt.Errorf("Empty string specified for ports.") + } + if !strings.Contains(ports, "-") { + start, err := strconv.ParseUint(ports, 10, 16) + end := start + return start, end, err + } + + parts := strings.Split(ports, "-") + start, err := strconv.ParseUint(parts[0], 10, 16) + if err != nil { + return 0, 0, err + } + end, err := strconv.ParseUint(parts[1], 10, 16) + if err != nil { + return 0, 0, err + } + if end < start { + return 0, 0, fmt.Errorf("Invalid range specified for the Port: %s", ports) + } + return start, end, nil +} + +// ParseLink parses and validates the specified string as a link format (name:alias) +func ParseLink(val string) (string, string, error) { + if val == "" { + return "", "", fmt.Errorf("empty string specified for links") + } + arr := strings.Split(val, ":") + if len(arr) > 2 { + return "", "", fmt.Errorf("bad format for links: %s", val) + } + if len(arr) == 1 { + return val, val, nil + } + // This is kept because we can actually get an HostConfig with links + // from an already created container and the format is not `foo:bar` + // but `/foo:/c1/bar` + if strings.HasPrefix(arr[0], "/") { + _, alias := path.Split(arr[1]) + return arr[0][1:], alias, nil + } + return arr[0], arr[1], nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/pools/pools.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/pools/pools.go new file mode 100644 index 0000000..515fb4d --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/pools/pools.go @@ -0,0 +1,119 @@ +// Package pools provides a collection of pools which provide various +// data types with buffers. These can be used to lower the number of +// memory allocations and reuse buffers. +// +// New pools should be added to this package to allow them to be +// shared across packages. +// +// Utility functions which operate on pools should be added to this +// package to allow them to be reused. +package pools + +import ( + "bufio" + "io" + "sync" + + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ioutils" +) + +var ( + // BufioReader32KPool is a pool which returns bufio.Reader with a 32K buffer. + BufioReader32KPool *BufioReaderPool + // BufioWriter32KPool is a pool which returns bufio.Writer with a 32K buffer. + BufioWriter32KPool *BufioWriterPool +) + +const buffer32K = 32 * 1024 + +// BufioReaderPool is a bufio reader that uses sync.Pool. +type BufioReaderPool struct { + pool sync.Pool +} + +func init() { + BufioReader32KPool = newBufioReaderPoolWithSize(buffer32K) + BufioWriter32KPool = newBufioWriterPoolWithSize(buffer32K) +} + +// newBufioReaderPoolWithSize is unexported because new pools should be +// added here to be shared where required. +func newBufioReaderPoolWithSize(size int) *BufioReaderPool { + pool := sync.Pool{ + New: func() interface{} { return bufio.NewReaderSize(nil, size) }, + } + return &BufioReaderPool{pool: pool} +} + +// Get returns a bufio.Reader which reads from r. The buffer size is that of the pool. +func (bufPool *BufioReaderPool) Get(r io.Reader) *bufio.Reader { + buf := bufPool.pool.Get().(*bufio.Reader) + buf.Reset(r) + return buf +} + +// Put puts the bufio.Reader back into the pool. +func (bufPool *BufioReaderPool) Put(b *bufio.Reader) { + b.Reset(nil) + bufPool.pool.Put(b) +} + +// Copy is a convenience wrapper which uses a buffer to avoid allocation in io.Copy. +func Copy(dst io.Writer, src io.Reader) (written int64, err error) { + buf := BufioReader32KPool.Get(src) + written, err = io.Copy(dst, buf) + BufioReader32KPool.Put(buf) + return +} + +// NewReadCloserWrapper returns a wrapper which puts the bufio.Reader back +// into the pool and closes the reader if it's an io.ReadCloser. +func (bufPool *BufioReaderPool) NewReadCloserWrapper(buf *bufio.Reader, r io.Reader) io.ReadCloser { + return ioutils.NewReadCloserWrapper(r, func() error { + if readCloser, ok := r.(io.ReadCloser); ok { + readCloser.Close() + } + bufPool.Put(buf) + return nil + }) +} + +// BufioWriterPool is a bufio writer that uses sync.Pool. +type BufioWriterPool struct { + pool sync.Pool +} + +// newBufioWriterPoolWithSize is unexported because new pools should be +// added here to be shared where required. +func newBufioWriterPoolWithSize(size int) *BufioWriterPool { + pool := sync.Pool{ + New: func() interface{} { return bufio.NewWriterSize(nil, size) }, + } + return &BufioWriterPool{pool: pool} +} + +// Get returns a bufio.Writer which writes to w. The buffer size is that of the pool. +func (bufPool *BufioWriterPool) Get(w io.Writer) *bufio.Writer { + buf := bufPool.pool.Get().(*bufio.Writer) + buf.Reset(w) + return buf +} + +// Put puts the bufio.Writer back into the pool. +func (bufPool *BufioWriterPool) Put(b *bufio.Writer) { + b.Reset(nil) + bufPool.pool.Put(b) +} + +// NewWriteCloserWrapper returns a wrapper which puts the bufio.Writer back +// into the pool and closes the writer if it's an io.Writecloser. +func (bufPool *BufioWriterPool) NewWriteCloserWrapper(buf *bufio.Writer, w io.Writer) io.WriteCloser { + return ioutils.NewWriteCloserWrapper(w, func() error { + buf.Flush() + if writeCloser, ok := w.(io.WriteCloser); ok { + writeCloser.Close() + } + bufPool.Put(buf) + return nil + }) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/promise/promise.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/promise/promise.go new file mode 100644 index 0000000..dd52b90 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/promise/promise.go @@ -0,0 +1,11 @@ +package promise + +// Go is a basic promise implementation: it wraps calls a function in a goroutine, +// and returns a channel which will later return the function's return value. +func Go(f func() error) chan error { + ch := make(chan error, 1) + go func() { + ch <- f() + }() + return ch +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/stdcopy/stdcopy.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/stdcopy/stdcopy.go new file mode 100644 index 0000000..63b3df7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/stdcopy/stdcopy.go @@ -0,0 +1,168 @@ +package stdcopy + +import ( + "encoding/binary" + "errors" + "io" + + "github.com/fsouza/go-dockerclient/external/github.com/Sirupsen/logrus" +) + +const ( + StdWriterPrefixLen = 8 + StdWriterFdIndex = 0 + StdWriterSizeIndex = 4 +) + +type StdType [StdWriterPrefixLen]byte + +var ( + Stdin StdType = StdType{0: 0} + Stdout StdType = StdType{0: 1} + Stderr StdType = StdType{0: 2} +) + +type StdWriter struct { + io.Writer + prefix StdType + sizeBuf []byte +} + +func (w *StdWriter) Write(buf []byte) (n int, err error) { + var n1, n2 int + if w == nil || w.Writer == nil { + return 0, errors.New("Writer not instantiated") + } + binary.BigEndian.PutUint32(w.prefix[4:], uint32(len(buf))) + n1, err = w.Writer.Write(w.prefix[:]) + if err != nil { + n = n1 - StdWriterPrefixLen + } else { + n2, err = w.Writer.Write(buf) + n = n1 + n2 - StdWriterPrefixLen + } + if n < 0 { + n = 0 + } + return +} + +// NewStdWriter instantiates a new Writer. +// Everything written to it will be encapsulated using a custom format, +// and written to the underlying `w` stream. +// This allows multiple write streams (e.g. stdout and stderr) to be muxed into a single connection. +// `t` indicates the id of the stream to encapsulate. +// It can be stdcopy.Stdin, stdcopy.Stdout, stdcopy.Stderr. +func NewStdWriter(w io.Writer, t StdType) *StdWriter { + return &StdWriter{ + Writer: w, + prefix: t, + sizeBuf: make([]byte, 4), + } +} + +var ErrInvalidStdHeader = errors.New("Unrecognized input header") + +// StdCopy is a modified version of io.Copy. +// +// StdCopy will demultiplex `src`, assuming that it contains two streams, +// previously multiplexed together using a StdWriter instance. +// As it reads from `src`, StdCopy will write to `dstout` and `dsterr`. +// +// StdCopy will read until it hits EOF on `src`. It will then return a nil error. +// In other words: if `err` is non nil, it indicates a real underlying error. +// +// `written` will hold the total number of bytes written to `dstout` and `dsterr`. +func StdCopy(dstout, dsterr io.Writer, src io.Reader) (written int64, err error) { + var ( + buf = make([]byte, 32*1024+StdWriterPrefixLen+1) + bufLen = len(buf) + nr, nw int + er, ew error + out io.Writer + frameSize int + ) + + for { + // Make sure we have at least a full header + for nr < StdWriterPrefixLen { + var nr2 int + nr2, er = src.Read(buf[nr:]) + nr += nr2 + if er == io.EOF { + if nr < StdWriterPrefixLen { + logrus.Debugf("Corrupted prefix: %v", buf[:nr]) + return written, nil + } + break + } + if er != nil { + logrus.Debugf("Error reading header: %s", er) + return 0, er + } + } + + // Check the first byte to know where to write + switch buf[StdWriterFdIndex] { + case 0: + fallthrough + case 1: + // Write on stdout + out = dstout + case 2: + // Write on stderr + out = dsterr + default: + logrus.Debugf("Error selecting output fd: (%d)", buf[StdWriterFdIndex]) + return 0, ErrInvalidStdHeader + } + + // Retrieve the size of the frame + frameSize = int(binary.BigEndian.Uint32(buf[StdWriterSizeIndex : StdWriterSizeIndex+4])) + logrus.Debugf("framesize: %d", frameSize) + + // Check if the buffer is big enough to read the frame. + // Extend it if necessary. + if frameSize+StdWriterPrefixLen > bufLen { + logrus.Debugf("Extending buffer cap by %d (was %d)", frameSize+StdWriterPrefixLen-bufLen+1, len(buf)) + buf = append(buf, make([]byte, frameSize+StdWriterPrefixLen-bufLen+1)...) + bufLen = len(buf) + } + + // While the amount of bytes read is less than the size of the frame + header, we keep reading + for nr < frameSize+StdWriterPrefixLen { + var nr2 int + nr2, er = src.Read(buf[nr:]) + nr += nr2 + if er == io.EOF { + if nr < frameSize+StdWriterPrefixLen { + logrus.Debugf("Corrupted frame: %v", buf[StdWriterPrefixLen:nr]) + return written, nil + } + break + } + if er != nil { + logrus.Debugf("Error reading frame: %s", er) + return 0, er + } + } + + // Write the retrieved frame (without header) + nw, ew = out.Write(buf[StdWriterPrefixLen : frameSize+StdWriterPrefixLen]) + if ew != nil { + logrus.Debugf("Error writing frame: %s", ew) + return 0, ew + } + // If the frame has not been fully written: error + if nw != frameSize { + logrus.Debugf("Error Short Write: (%d on %d)", nw, frameSize) + return 0, io.ErrShortWrite + } + written += int64(nw) + + // Move the rest of the buffer to the beginning + copy(buf, buf[frameSize+StdWriterPrefixLen:]) + // Move the index + nr -= frameSize + StdWriterPrefixLen + } +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/errors.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/errors.go new file mode 100644 index 0000000..6304518 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/errors.go @@ -0,0 +1,9 @@ +package system + +import ( + "errors" +) + +var ( + ErrNotSupportedPlatform = errors.New("platform and architecture is not supported") +) diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/events_windows.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/events_windows.go new file mode 100644 index 0000000..23f7c61 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/events_windows.go @@ -0,0 +1,83 @@ +package system + +// This file implements syscalls for Win32 events which are not implemented +// in golang. + +import ( + "syscall" + "unsafe" +) + +const ( + EVENT_ALL_ACCESS = 0x1F0003 + EVENT_MODIFY_STATUS = 0x0002 +) + +var ( + procCreateEvent = modkernel32.NewProc("CreateEventW") + procOpenEvent = modkernel32.NewProc("OpenEventW") + procSetEvent = modkernel32.NewProc("SetEvent") + procResetEvent = modkernel32.NewProc("ResetEvent") + procPulseEvent = modkernel32.NewProc("PulseEvent") +) + +func CreateEvent(eventAttributes *syscall.SecurityAttributes, manualReset bool, initialState bool, name string) (handle syscall.Handle, err error) { + namep, _ := syscall.UTF16PtrFromString(name) + var _p1 uint32 = 0 + if manualReset { + _p1 = 1 + } + var _p2 uint32 = 0 + if initialState { + _p2 = 1 + } + r0, _, e1 := procCreateEvent.Call(uintptr(unsafe.Pointer(eventAttributes)), uintptr(_p1), uintptr(_p2), uintptr(unsafe.Pointer(namep))) + use(unsafe.Pointer(namep)) + handle = syscall.Handle(r0) + if handle == syscall.InvalidHandle { + err = e1 + } + return +} + +func OpenEvent(desiredAccess uint32, inheritHandle bool, name string) (handle syscall.Handle, err error) { + namep, _ := syscall.UTF16PtrFromString(name) + var _p1 uint32 = 0 + if inheritHandle { + _p1 = 1 + } + r0, _, e1 := procOpenEvent.Call(uintptr(desiredAccess), uintptr(_p1), uintptr(unsafe.Pointer(namep))) + use(unsafe.Pointer(namep)) + handle = syscall.Handle(r0) + if handle == syscall.InvalidHandle { + err = e1 + } + return +} + +func SetEvent(handle syscall.Handle) (err error) { + return setResetPulse(handle, procSetEvent) +} + +func ResetEvent(handle syscall.Handle) (err error) { + return setResetPulse(handle, procResetEvent) +} + +func PulseEvent(handle syscall.Handle) (err error) { + return setResetPulse(handle, procPulseEvent) +} + +func setResetPulse(handle syscall.Handle, proc *syscall.LazyProc) (err error) { + r0, _, _ := proc.Call(uintptr(handle)) + if r0 != 0 { + err = syscall.Errno(r0) + } + return +} + +var temp unsafe.Pointer + +// use ensures a variable is kept alive without the GC freeing while still needed +func use(p unsafe.Pointer) { + temp = p +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/filesys.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/filesys.go new file mode 100644 index 0000000..e1f70e8 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/filesys.go @@ -0,0 +1,11 @@ +// +build !windows + +package system + +import ( + "os" +) + +func MkdirAll(path string, perm os.FileMode) error { + return os.MkdirAll(path, perm) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/filesys_windows.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/filesys_windows.go new file mode 100644 index 0000000..90b5006 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/filesys_windows.go @@ -0,0 +1,64 @@ +// +build windows + +package system + +import ( + "os" + "regexp" + "syscall" +) + +// MkdirAll implementation that is volume path aware for Windows. +func MkdirAll(path string, perm os.FileMode) error { + if re := regexp.MustCompile(`^\\\\\?\\Volume{[a-z0-9-]+}$`); re.MatchString(path) { + return nil + } + + // The rest of this method is copied from os.MkdirAll and should be kept + // as-is to ensure compatibility. + + // Fast path: if we can tell whether path is a directory or file, stop with success or error. + dir, err := os.Stat(path) + if err == nil { + if dir.IsDir() { + return nil + } + return &os.PathError{ + Op: "mkdir", + Path: path, + Err: syscall.ENOTDIR, + } + } + + // Slow path: make sure parent exists and then call Mkdir for path. + i := len(path) + for i > 0 && os.IsPathSeparator(path[i-1]) { // Skip trailing path separator. + i-- + } + + j := i + for j > 0 && !os.IsPathSeparator(path[j-1]) { // Scan backward over element. + j-- + } + + if j > 1 { + // Create parent + err = MkdirAll(path[0:j-1], perm) + if err != nil { + return err + } + } + + // Parent now exists; invoke Mkdir and use its result. + err = os.Mkdir(path, perm) + if err != nil { + // Handle arguments like "foo/." by + // double-checking that directory doesn't exist. + dir, err1 := os.Lstat(path) + if err1 == nil && dir.IsDir() { + return nil + } + return err + } + return nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/lstat.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/lstat.go new file mode 100644 index 0000000..d0e43b3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/lstat.go @@ -0,0 +1,19 @@ +// +build !windows + +package system + +import ( + "syscall" +) + +// Lstat takes a path to a file and returns +// a system.Stat_t type pertaining to that file. +// +// Throws an error if the file does not exist +func Lstat(path string) (*Stat_t, error) { + s := &syscall.Stat_t{} + if err := syscall.Lstat(path, s); err != nil { + return nil, err + } + return fromStatT(s) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/lstat_windows.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/lstat_windows.go new file mode 100644 index 0000000..eee1be2 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/lstat_windows.go @@ -0,0 +1,29 @@ +// +build windows + +package system + +import ( + "os" +) + +// Some explanation for my own sanity, and hopefully maintainers in the +// future. +// +// Lstat calls os.Lstat to get a fileinfo interface back. +// This is then copied into our own locally defined structure. +// Note the Linux version uses fromStatT to do the copy back, +// but that not strictly necessary when already in an OS specific module. + +func Lstat(path string) (*Stat_t, error) { + fi, err := os.Lstat(path) + if err != nil { + return nil, err + } + + return &Stat_t{ + name: fi.Name(), + size: fi.Size(), + mode: fi.Mode(), + modTime: fi.ModTime(), + isDir: fi.IsDir()}, nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo.go new file mode 100644 index 0000000..3b6e947 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo.go @@ -0,0 +1,17 @@ +package system + +// MemInfo contains memory statistics of the host system. +type MemInfo struct { + // Total usable RAM (i.e. physical RAM minus a few reserved bits and the + // kernel binary code). + MemTotal int64 + + // Amount of free memory. + MemFree int64 + + // Total amount of swap space available. + SwapTotal int64 + + // Amount of swap space that is currently unused. + SwapFree int64 +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo_linux.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo_linux.go new file mode 100644 index 0000000..41f2bab --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo_linux.go @@ -0,0 +1,71 @@ +package system + +import ( + "bufio" + "errors" + "io" + "os" + "strconv" + "strings" + + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/units" +) + +var ( + ErrMalformed = errors.New("malformed file") +) + +// ReadMemInfo retrieves memory statistics of the host system and returns a +// MemInfo type. +func ReadMemInfo() (*MemInfo, error) { + file, err := os.Open("/proc/meminfo") + if err != nil { + return nil, err + } + defer file.Close() + return parseMemInfo(file) +} + +// parseMemInfo parses the /proc/meminfo file into +// a MemInfo object given a io.Reader to the file. +// +// Throws error if there are problems reading from the file +func parseMemInfo(reader io.Reader) (*MemInfo, error) { + meminfo := &MemInfo{} + scanner := bufio.NewScanner(reader) + for scanner.Scan() { + // Expected format: ["MemTotal:", "1234", "kB"] + parts := strings.Fields(scanner.Text()) + + // Sanity checks: Skip malformed entries. + if len(parts) < 3 || parts[2] != "kB" { + continue + } + + // Convert to bytes. + size, err := strconv.Atoi(parts[1]) + if err != nil { + continue + } + bytes := int64(size) * units.KiB + + switch parts[0] { + case "MemTotal:": + meminfo.MemTotal = bytes + case "MemFree:": + meminfo.MemFree = bytes + case "SwapTotal:": + meminfo.SwapTotal = bytes + case "SwapFree:": + meminfo.SwapFree = bytes + } + + } + + // Handle errors that may have occurred during the reading of the file. + if err := scanner.Err(); err != nil { + return nil, err + } + + return meminfo, nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo_unsupported.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo_unsupported.go new file mode 100644 index 0000000..604d338 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo_unsupported.go @@ -0,0 +1,7 @@ +// +build !linux,!windows + +package system + +func ReadMemInfo() (*MemInfo, error) { + return nil, ErrNotSupportedPlatform +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo_windows.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo_windows.go new file mode 100644 index 0000000..d466425 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/meminfo_windows.go @@ -0,0 +1,44 @@ +package system + +import ( + "syscall" + "unsafe" +) + +var ( + modkernel32 = syscall.NewLazyDLL("kernel32.dll") + + procGlobalMemoryStatusEx = modkernel32.NewProc("GlobalMemoryStatusEx") +) + +// https://msdn.microsoft.com/en-us/library/windows/desktop/aa366589(v=vs.85).aspx +// https://msdn.microsoft.com/en-us/library/windows/desktop/aa366770(v=vs.85).aspx +type memorystatusex struct { + dwLength uint32 + dwMemoryLoad uint32 + ullTotalPhys uint64 + ullAvailPhys uint64 + ullTotalPageFile uint64 + ullAvailPageFile uint64 + ullTotalVirtual uint64 + ullAvailVirtual uint64 + ullAvailExtendedVirtual uint64 +} + +// ReadMemInfo retrieves memory statistics of the host system and returns a +// MemInfo type. +func ReadMemInfo() (*MemInfo, error) { + msi := &memorystatusex{ + dwLength: 64, + } + r1, _, _ := procGlobalMemoryStatusEx.Call(uintptr(unsafe.Pointer(msi))) + if r1 == 0 { + return &MemInfo{}, nil + } + return &MemInfo{ + MemTotal: int64(msi.ullTotalPhys), + MemFree: int64(msi.ullAvailPhys), + SwapTotal: int64(msi.ullTotalPageFile), + SwapFree: int64(msi.ullAvailPageFile), + }, nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/mknod.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/mknod.go new file mode 100644 index 0000000..26617eb --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/mknod.go @@ -0,0 +1,20 @@ +// +build !windows + +package system + +import ( + "syscall" +) + +// Mknod creates a filesystem node (file, device special file or named pipe) named path +// with attributes specified by mode and dev +func Mknod(path string, mode uint32, dev int) error { + return syscall.Mknod(path, mode, dev) +} + +// Linux device nodes are a bit weird due to backwards compat with 16 bit device nodes. +// They are, from low to high: the lower 8 bits of the minor, then 12 bits of the major, +// then the top 12 bits of the minor +func Mkdev(major int64, minor int64) uint32 { + return uint32(((minor & 0xfff00) << 12) | ((major & 0xfff) << 8) | (minor & 0xff)) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/mknod_windows.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/mknod_windows.go new file mode 100644 index 0000000..1811542 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/mknod_windows.go @@ -0,0 +1,11 @@ +// +build windows + +package system + +func Mknod(path string, mode uint32, dev int) error { + return ErrNotSupportedPlatform +} + +func Mkdev(major int64, minor int64) uint32 { + panic("Mkdev not implemented on Windows.") +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat.go new file mode 100644 index 0000000..e2ecfe5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat.go @@ -0,0 +1,46 @@ +// +build !windows + +package system + +import ( + "syscall" +) + +// Stat_t type contains status of a file. It contains metadata +// like permission, owner, group, size, etc about a file +type Stat_t struct { + mode uint32 + uid uint32 + gid uint32 + rdev uint64 + size int64 + mtim syscall.Timespec +} + +func (s Stat_t) Mode() uint32 { + return s.mode +} + +func (s Stat_t) Uid() uint32 { + return s.uid +} + +func (s Stat_t) Gid() uint32 { + return s.gid +} + +func (s Stat_t) Rdev() uint64 { + return s.rdev +} + +func (s Stat_t) Size() int64 { + return s.size +} + +func (s Stat_t) Mtim() syscall.Timespec { + return s.mtim +} + +func (s Stat_t) GetLastModification() syscall.Timespec { + return s.Mtim() +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_freebsd.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_freebsd.go new file mode 100644 index 0000000..4b2198b --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_freebsd.go @@ -0,0 +1,27 @@ +package system + +import ( + "syscall" +) + +// fromStatT converts a syscall.Stat_t type to a system.Stat_t type +func fromStatT(s *syscall.Stat_t) (*Stat_t, error) { + return &Stat_t{size: s.Size, + mode: uint32(s.Mode), + uid: s.Uid, + gid: s.Gid, + rdev: uint64(s.Rdev), + mtim: s.Mtimespec}, nil +} + +// Stat takes a path to a file and returns +// a system.Stat_t type pertaining to that file. +// +// Throws an error if the file does not exist +func Stat(path string) (*Stat_t, error) { + s := &syscall.Stat_t{} + if err := syscall.Stat(path, s); err != nil { + return nil, err + } + return fromStatT(s) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_linux.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_linux.go new file mode 100644 index 0000000..80262d9 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_linux.go @@ -0,0 +1,33 @@ +package system + +import ( + "syscall" +) + +// fromStatT converts a syscall.Stat_t type to a system.Stat_t type +func fromStatT(s *syscall.Stat_t) (*Stat_t, error) { + return &Stat_t{size: s.Size, + mode: s.Mode, + uid: s.Uid, + gid: s.Gid, + rdev: s.Rdev, + mtim: s.Mtim}, nil +} + +// FromStatT exists only on linux, and loads a system.Stat_t from a +// syscal.Stat_t. +func FromStatT(s *syscall.Stat_t) (*Stat_t, error) { + return fromStatT(s) +} + +// Stat takes a path to a file and returns +// a system.Stat_t type pertaining to that file. +// +// Throws an error if the file does not exist +func Stat(path string) (*Stat_t, error) { + s := &syscall.Stat_t{} + if err := syscall.Stat(path, s); err != nil { + return nil, err + } + return fromStatT(s) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_unsupported.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_unsupported.go new file mode 100644 index 0000000..5251ae2 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_unsupported.go @@ -0,0 +1,17 @@ +// +build !linux,!windows,!freebsd + +package system + +import ( + "syscall" +) + +// fromStatT creates a system.Stat_t type from a syscall.Stat_t type +func fromStatT(s *syscall.Stat_t) (*Stat_t, error) { + return &Stat_t{size: s.Size, + mode: uint32(s.Mode), + uid: s.Uid, + gid: s.Gid, + rdev: uint64(s.Rdev), + mtim: s.Mtimespec}, nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_windows.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_windows.go new file mode 100644 index 0000000..b1fd39e --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/stat_windows.go @@ -0,0 +1,36 @@ +// +build windows + +package system + +import ( + "os" + "time" +) + +type Stat_t struct { + name string + size int64 + mode os.FileMode + modTime time.Time + isDir bool +} + +func (s Stat_t) Name() string { + return s.name +} + +func (s Stat_t) Size() int64 { + return s.size +} + +func (s Stat_t) Mode() os.FileMode { + return s.mode +} + +func (s Stat_t) ModTime() time.Time { + return s.modTime +} + +func (s Stat_t) IsDir() bool { + return s.isDir +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/umask.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/umask.go new file mode 100644 index 0000000..fddbecd --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/umask.go @@ -0,0 +1,11 @@ +// +build !windows + +package system + +import ( + "syscall" +) + +func Umask(newmask int) (oldmask int, err error) { + return syscall.Umask(newmask), nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/umask_windows.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/umask_windows.go new file mode 100644 index 0000000..3be563f --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/umask_windows.go @@ -0,0 +1,8 @@ +// +build windows + +package system + +func Umask(newmask int) (oldmask int, err error) { + // should not be called on cli code path + return 0, ErrNotSupportedPlatform +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_darwin.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_darwin.go new file mode 100644 index 0000000..4c6002f --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_darwin.go @@ -0,0 +1,11 @@ +package system + +import "syscall" + +func LUtimesNano(path string, ts []syscall.Timespec) error { + return ErrNotSupportedPlatform +} + +func UtimesNano(path string, ts []syscall.Timespec) error { + return syscall.UtimesNano(path, ts) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_freebsd.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_freebsd.go new file mode 100644 index 0000000..ceaa044 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_freebsd.go @@ -0,0 +1,24 @@ +package system + +import ( + "syscall" + "unsafe" +) + +func LUtimesNano(path string, ts []syscall.Timespec) error { + var _path *byte + _path, err := syscall.BytePtrFromString(path) + if err != nil { + return err + } + + if _, _, err := syscall.Syscall(syscall.SYS_LUTIMES, uintptr(unsafe.Pointer(_path)), uintptr(unsafe.Pointer(&ts[0])), 0); err != 0 && err != syscall.ENOSYS { + return err + } + + return nil +} + +func UtimesNano(path string, ts []syscall.Timespec) error { + return syscall.UtimesNano(path, ts) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_linux.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_linux.go new file mode 100644 index 0000000..8f90298 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_linux.go @@ -0,0 +1,28 @@ +package system + +import ( + "syscall" + "unsafe" +) + +func LUtimesNano(path string, ts []syscall.Timespec) error { + // These are not currently available in syscall + AT_FDCWD := -100 + AT_SYMLINK_NOFOLLOW := 0x100 + + var _path *byte + _path, err := syscall.BytePtrFromString(path) + if err != nil { + return err + } + + if _, _, err := syscall.Syscall6(syscall.SYS_UTIMENSAT, uintptr(AT_FDCWD), uintptr(unsafe.Pointer(_path)), uintptr(unsafe.Pointer(&ts[0])), uintptr(AT_SYMLINK_NOFOLLOW), 0, 0); err != 0 && err != syscall.ENOSYS { + return err + } + + return nil +} + +func UtimesNano(path string, ts []syscall.Timespec) error { + return syscall.UtimesNano(path, ts) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_unsupported.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_unsupported.go new file mode 100644 index 0000000..adf2734 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/utimes_unsupported.go @@ -0,0 +1,13 @@ +// +build !linux,!freebsd,!darwin + +package system + +import "syscall" + +func LUtimesNano(path string, ts []syscall.Timespec) error { + return ErrNotSupportedPlatform +} + +func UtimesNano(path string, ts []syscall.Timespec) error { + return ErrNotSupportedPlatform +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/xattrs_linux.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/xattrs_linux.go new file mode 100644 index 0000000..00edb20 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/xattrs_linux.go @@ -0,0 +1,59 @@ +package system + +import ( + "syscall" + "unsafe" +) + +// Returns a nil slice and nil error if the xattr is not set +func Lgetxattr(path string, attr string) ([]byte, error) { + pathBytes, err := syscall.BytePtrFromString(path) + if err != nil { + return nil, err + } + attrBytes, err := syscall.BytePtrFromString(attr) + if err != nil { + return nil, err + } + + dest := make([]byte, 128) + destBytes := unsafe.Pointer(&dest[0]) + sz, _, errno := syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0) + if errno == syscall.ENODATA { + return nil, nil + } + if errno == syscall.ERANGE { + dest = make([]byte, sz) + destBytes := unsafe.Pointer(&dest[0]) + sz, _, errno = syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0) + } + if errno != 0 { + return nil, errno + } + + return dest[:sz], nil +} + +var _zero uintptr + +func Lsetxattr(path string, attr string, data []byte, flags int) error { + pathBytes, err := syscall.BytePtrFromString(path) + if err != nil { + return err + } + attrBytes, err := syscall.BytePtrFromString(attr) + if err != nil { + return err + } + var dataBytes unsafe.Pointer + if len(data) > 0 { + dataBytes = unsafe.Pointer(&data[0]) + } else { + dataBytes = unsafe.Pointer(&_zero) + } + _, _, errno := syscall.Syscall6(syscall.SYS_LSETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(dataBytes), uintptr(len(data)), uintptr(flags), 0) + if errno != 0 { + return errno + } + return nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/xattrs_unsupported.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/xattrs_unsupported.go new file mode 100644 index 0000000..0060c16 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/system/xattrs_unsupported.go @@ -0,0 +1,11 @@ +// +build !linux + +package system + +func Lgetxattr(path string, attr string) ([]byte, error) { + return nil, ErrNotSupportedPlatform +} + +func Lsetxattr(path string, attr string, data []byte, flags int) error { + return ErrNotSupportedPlatform +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ulimit/ulimit.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ulimit/ulimit.go new file mode 100644 index 0000000..8fb0d80 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/ulimit/ulimit.go @@ -0,0 +1,111 @@ +// Package ulimit provides structure and helper function to parse and represent +// resource limits (Rlimit and Ulimit, its human friendly version). +package ulimit + +import ( + "fmt" + "strconv" + "strings" +) + +// Ulimit is a human friendly version of Rlimit. +type Ulimit struct { + Name string + Hard int64 + Soft int64 +} + +// Rlimit specifies the resource limits, such as max open files. +type Rlimit struct { + Type int `json:"type,omitempty"` + Hard uint64 `json:"hard,omitempty"` + Soft uint64 `json:"soft,omitempty"` +} + +const ( + // magic numbers for making the syscall + // some of these are defined in the syscall package, but not all. + // Also since Windows client doesn't get access to the syscall package, need to + // define these here + rlimitAs = 9 + rlimitCore = 4 + rlimitCPU = 0 + rlimitData = 2 + rlimitFsize = 1 + rlimitLocks = 10 + rlimitMemlock = 8 + rlimitMsgqueue = 12 + rlimitNice = 13 + rlimitNofile = 7 + rlimitNproc = 6 + rlimitRss = 5 + rlimitRtprio = 14 + rlimitRttime = 15 + rlimitSigpending = 11 + rlimitStack = 3 +) + +var ulimitNameMapping = map[string]int{ + //"as": rlimitAs, // Disabled since this doesn't seem usable with the way Docker inits a container. + "core": rlimitCore, + "cpu": rlimitCPU, + "data": rlimitData, + "fsize": rlimitFsize, + "locks": rlimitLocks, + "memlock": rlimitMemlock, + "msgqueue": rlimitMsgqueue, + "nice": rlimitNice, + "nofile": rlimitNofile, + "nproc": rlimitNproc, + "rss": rlimitRss, + "rtprio": rlimitRtprio, + "rttime": rlimitRttime, + "sigpending": rlimitSigpending, + "stack": rlimitStack, +} + +// Parse parses and returns a Ulimit from the specified string. +func Parse(val string) (*Ulimit, error) { + parts := strings.SplitN(val, "=", 2) + if len(parts) != 2 { + return nil, fmt.Errorf("invalid ulimit argument: %s", val) + } + + if _, exists := ulimitNameMapping[parts[0]]; !exists { + return nil, fmt.Errorf("invalid ulimit type: %s", parts[0]) + } + + limitVals := strings.SplitN(parts[1], ":", 2) + if len(limitVals) > 2 { + return nil, fmt.Errorf("too many limit value arguments - %s, can only have up to two, `soft[:hard]`", parts[1]) + } + + soft, err := strconv.ParseInt(limitVals[0], 10, 64) + if err != nil { + return nil, err + } + + hard := soft // in case no hard was set + if len(limitVals) == 2 { + hard, err = strconv.ParseInt(limitVals[1], 10, 64) + } + if soft > hard { + return nil, fmt.Errorf("ulimit soft limit must be less than or equal to hard limit: %d > %d", soft, hard) + } + + return &Ulimit{Name: parts[0], Soft: soft, Hard: hard}, nil +} + +// GetRlimit returns the RLimit corresponding to Ulimit. +func (u *Ulimit) GetRlimit() (*Rlimit, error) { + t, exists := ulimitNameMapping[u.Name] + if !exists { + return nil, fmt.Errorf("invalid ulimit name %s", u.Name) + } + + return &Rlimit{Type: t, Soft: uint64(u.Soft), Hard: uint64(u.Hard)}, nil +} + +func (u *Ulimit) String() string { + return fmt.Sprintf("%s=%d:%d", u.Name, u.Soft, u.Hard) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/units/duration.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/units/duration.go new file mode 100644 index 0000000..c219a8a --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/units/duration.go @@ -0,0 +1,33 @@ +// Package units provides helper function to parse and print size and time units +// in human-readable format. +package units + +import ( + "fmt" + "time" +) + +// HumanDuration returns a human-readable approximation of a duration +// (eg. "About a minute", "4 hours ago", etc.). +func HumanDuration(d time.Duration) string { + if seconds := int(d.Seconds()); seconds < 1 { + return "Less than a second" + } else if seconds < 60 { + return fmt.Sprintf("%d seconds", seconds) + } else if minutes := int(d.Minutes()); minutes == 1 { + return "About a minute" + } else if minutes < 60 { + return fmt.Sprintf("%d minutes", minutes) + } else if hours := int(d.Hours()); hours == 1 { + return "About an hour" + } else if hours < 48 { + return fmt.Sprintf("%d hours", hours) + } else if hours < 24*7*2 { + return fmt.Sprintf("%d days", hours/24) + } else if hours < 24*30*3 { + return fmt.Sprintf("%d weeks", hours/24/7) + } else if hours < 24*365*2 { + return fmt.Sprintf("%d months", hours/24/30) + } + return fmt.Sprintf("%d years", int(d.Hours())/24/365) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/units/size.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/units/size.go new file mode 100644 index 0000000..2fde3b4 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/units/size.go @@ -0,0 +1,95 @@ +package units + +import ( + "fmt" + "regexp" + "strconv" + "strings" +) + +// See: http://en.wikipedia.org/wiki/Binary_prefix +const ( + // Decimal + + KB = 1000 + MB = 1000 * KB + GB = 1000 * MB + TB = 1000 * GB + PB = 1000 * TB + + // Binary + + KiB = 1024 + MiB = 1024 * KiB + GiB = 1024 * MiB + TiB = 1024 * GiB + PiB = 1024 * TiB +) + +type unitMap map[string]int64 + +var ( + decimalMap = unitMap{"k": KB, "m": MB, "g": GB, "t": TB, "p": PB} + binaryMap = unitMap{"k": KiB, "m": MiB, "g": GiB, "t": TiB, "p": PiB} + sizeRegex = regexp.MustCompile(`^(\d+)([kKmMgGtTpP])?[bB]?$`) +) + +var decimapAbbrs = []string{"B", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"} +var binaryAbbrs = []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"} + +// CustomSize returns a human-readable approximation of a size +// using custom format. +func CustomSize(format string, size float64, base float64, _map []string) string { + i := 0 + for size >= base { + size = size / base + i++ + } + return fmt.Sprintf(format, size, _map[i]) +} + +// HumanSize returns a human-readable approximation of a size +// using SI standard (eg. "44kB", "17MB"). +func HumanSize(size float64) string { + return CustomSize("%.4g %s", size, 1000.0, decimapAbbrs) +} + +// BytesSize returns a human-readable size in bytes, kibibytes, +// mebibytes, gibibytes, or tebibytes (eg. "44kiB", "17MiB"). +func BytesSize(size float64) string { + return CustomSize("%.4g %s", size, 1024.0, binaryAbbrs) +} + +// FromHumanSize returns an integer from a human-readable specification of a +// size using SI standard (eg. "44kB", "17MB"). +func FromHumanSize(size string) (int64, error) { + return parseSize(size, decimalMap) +} + +// RAMInBytes parses a human-readable string representing an amount of RAM +// in bytes, kibibytes, mebibytes, gibibytes, or tebibytes and +// returns the number of bytes, or -1 if the string is unparseable. +// Units are case-insensitive, and the 'b' suffix is optional. +func RAMInBytes(size string) (int64, error) { + return parseSize(size, binaryMap) +} + +// Parses the human-readable size string into the amount it represents. +func parseSize(sizeStr string, uMap unitMap) (int64, error) { + matches := sizeRegex.FindStringSubmatch(sizeStr) + if len(matches) != 3 { + return -1, fmt.Errorf("invalid size: '%s'", sizeStr) + } + + size, err := strconv.ParseInt(matches[1], 10, 0) + if err != nil { + return -1, err + } + + unitPrefix := strings.ToLower(matches[2]) + if mul, ok := uMap[unitPrefix]; ok { + size *= mul + } + + return size, nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/volume/volume.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/volume/volume.go new file mode 100644 index 0000000..19c9d77 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/docker/volume/volume.go @@ -0,0 +1,61 @@ +package volume + +// DefaultDriverName is the driver name used for the driver +// implemented in the local package. +const DefaultDriverName string = "local" + +// Driver is for creating and removing volumes. +type Driver interface { + // Name returns the name of the volume driver. + Name() string + // Create makes a new volume with the given id. + Create(string) (Volume, error) + // Remove deletes the volume. + Remove(Volume) error +} + +// Volume is a place to store data. It is backed by a specific driver, and can be mounted. +type Volume interface { + // Name returns the name of the volume + Name() string + // DriverName returns the name of the driver which owns this volume. + DriverName() string + // Path returns the absolute path to the volume. + Path() string + // Mount mounts the volume and returns the absolute path to + // where it can be consumed. + Mount() (string, error) + // Unmount unmounts the volume when it is no longer in use. + Unmount() error +} + +// read-write modes +var rwModes = map[string]bool{ + "rw": true, + "rw,Z": true, + "rw,z": true, + "z,rw": true, + "Z,rw": true, + "Z": true, + "z": true, +} + +// read-only modes +var roModes = map[string]bool{ + "ro": true, + "ro,Z": true, + "ro,z": true, + "z,ro": true, + "Z,ro": true, +} + +// ValidateMountMode will make sure the mount mode is valid. +// returns if it's a valid mount mode and if it's read-write or not. +func ValidateMountMode(mode string) (bool, bool) { + return roModes[mode] || rwModes[mode], rwModes[mode] +} + +// ReadWrite tells you if a mode string is a valid read-only mode or not. +func ReadWrite(mode string) bool { + return rwModes[mode] +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/libcontainer/user/MAINTAINERS b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/libcontainer/user/MAINTAINERS new file mode 100644 index 0000000..edbe200 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/libcontainer/user/MAINTAINERS @@ -0,0 +1,2 @@ +Tianon Gravi (@tianon) +Aleksa Sarai (@cyphar) diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/libcontainer/user/lookup.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/libcontainer/user/lookup.go new file mode 100644 index 0000000..6f8a982 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/libcontainer/user/lookup.go @@ -0,0 +1,108 @@ +package user + +import ( + "errors" + "fmt" + "syscall" +) + +var ( + // The current operating system does not provide the required data for user lookups. + ErrUnsupported = errors.New("user lookup: operating system does not provide passwd-formatted data") +) + +func lookupUser(filter func(u User) bool) (User, error) { + // Get operating system-specific passwd reader-closer. + passwd, err := GetPasswd() + if err != nil { + return User{}, err + } + defer passwd.Close() + + // Get the users. + users, err := ParsePasswdFilter(passwd, filter) + if err != nil { + return User{}, err + } + + // No user entries found. + if len(users) == 0 { + return User{}, fmt.Errorf("no matching entries in passwd file") + } + + // Assume the first entry is the "correct" one. + return users[0], nil +} + +// CurrentUser looks up the current user by their user id in /etc/passwd. If the +// user cannot be found (or there is no /etc/passwd file on the filesystem), +// then CurrentUser returns an error. +func CurrentUser() (User, error) { + return LookupUid(syscall.Getuid()) +} + +// LookupUser looks up a user by their username in /etc/passwd. If the user +// cannot be found (or there is no /etc/passwd file on the filesystem), then +// LookupUser returns an error. +func LookupUser(username string) (User, error) { + return lookupUser(func(u User) bool { + return u.Name == username + }) +} + +// LookupUid looks up a user by their user id in /etc/passwd. If the user cannot +// be found (or there is no /etc/passwd file on the filesystem), then LookupId +// returns an error. +func LookupUid(uid int) (User, error) { + return lookupUser(func(u User) bool { + return u.Uid == uid + }) +} + +func lookupGroup(filter func(g Group) bool) (Group, error) { + // Get operating system-specific group reader-closer. + group, err := GetGroup() + if err != nil { + return Group{}, err + } + defer group.Close() + + // Get the users. + groups, err := ParseGroupFilter(group, filter) + if err != nil { + return Group{}, err + } + + // No user entries found. + if len(groups) == 0 { + return Group{}, fmt.Errorf("no matching entries in group file") + } + + // Assume the first entry is the "correct" one. + return groups[0], nil +} + +// CurrentGroup looks up the current user's group by their primary group id's +// entry in /etc/passwd. If the group cannot be found (or there is no +// /etc/group file on the filesystem), then CurrentGroup returns an error. +func CurrentGroup() (Group, error) { + return LookupGid(syscall.Getgid()) +} + +// LookupGroup looks up a group by its name in /etc/group. If the group cannot +// be found (or there is no /etc/group file on the filesystem), then LookupGroup +// returns an error. +func LookupGroup(groupname string) (Group, error) { + return lookupGroup(func(g Group) bool { + return g.Name == groupname + }) +} + +// LookupGid looks up a group by its group id in /etc/group. If the group cannot +// be found (or there is no /etc/group file on the filesystem), then LookupGid +// returns an error. +func LookupGid(gid int) (Group, error) { + return lookupGroup(func(g Group) bool { + return g.Gid == gid + }) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/libcontainer/user/lookup_unix.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/libcontainer/user/lookup_unix.go new file mode 100644 index 0000000..758b734 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/libcontainer/user/lookup_unix.go @@ -0,0 +1,30 @@ +// +build darwin dragonfly freebsd linux netbsd openbsd solaris + +package user + +import ( + "io" + "os" +) + +// Unix-specific path to the passwd and group formatted files. +const ( + unixPasswdPath = "/etc/passwd" + unixGroupPath = "/etc/group" +) + +func GetPasswdPath() (string, error) { + return unixPasswdPath, nil +} + +func GetPasswd() (io.ReadCloser, error) { + return os.Open(unixPasswdPath) +} + +func GetGroupPath() (string, error) { + return unixGroupPath, nil +} + +func GetGroup() (io.ReadCloser, error) { + return os.Open(unixGroupPath) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/libcontainer/user/lookup_unsupported.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/libcontainer/user/lookup_unsupported.go new file mode 100644 index 0000000..7217948 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/libcontainer/user/lookup_unsupported.go @@ -0,0 +1,21 @@ +// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris + +package user + +import "io" + +func GetPasswdPath() (string, error) { + return "", ErrUnsupported +} + +func GetPasswd() (io.ReadCloser, error) { + return nil, ErrUnsupported +} + +func GetGroupPath() (string, error) { + return "", ErrUnsupported +} + +func GetGroup() (io.ReadCloser, error) { + return nil, ErrUnsupported +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/libcontainer/user/user.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/libcontainer/user/user.go new file mode 100644 index 0000000..13226db --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/docker/libcontainer/user/user.go @@ -0,0 +1,407 @@ +package user + +import ( + "bufio" + "fmt" + "io" + "os" + "strconv" + "strings" +) + +const ( + minId = 0 + maxId = 1<<31 - 1 //for 32-bit systems compatibility +) + +var ( + ErrRange = fmt.Errorf("Uids and gids must be in range %d-%d", minId, maxId) +) + +type User struct { + Name string + Pass string + Uid int + Gid int + Gecos string + Home string + Shell string +} + +type Group struct { + Name string + Pass string + Gid int + List []string +} + +func parseLine(line string, v ...interface{}) { + if line == "" { + return + } + + parts := strings.Split(line, ":") + for i, p := range parts { + if len(v) <= i { + // if we have more "parts" than we have places to put them, bail for great "tolerance" of naughty configuration files + break + } + + switch e := v[i].(type) { + case *string: + // "root", "adm", "/bin/bash" + *e = p + case *int: + // "0", "4", "1000" + // ignore string to int conversion errors, for great "tolerance" of naughty configuration files + *e, _ = strconv.Atoi(p) + case *[]string: + // "", "root", "root,adm,daemon" + if p != "" { + *e = strings.Split(p, ",") + } else { + *e = []string{} + } + default: + // panic, because this is a programming/logic error, not a runtime one + panic("parseLine expects only pointers! argument " + strconv.Itoa(i) + " is not a pointer!") + } + } +} + +func ParsePasswdFile(path string) ([]User, error) { + passwd, err := os.Open(path) + if err != nil { + return nil, err + } + defer passwd.Close() + return ParsePasswd(passwd) +} + +func ParsePasswd(passwd io.Reader) ([]User, error) { + return ParsePasswdFilter(passwd, nil) +} + +func ParsePasswdFileFilter(path string, filter func(User) bool) ([]User, error) { + passwd, err := os.Open(path) + if err != nil { + return nil, err + } + defer passwd.Close() + return ParsePasswdFilter(passwd, filter) +} + +func ParsePasswdFilter(r io.Reader, filter func(User) bool) ([]User, error) { + if r == nil { + return nil, fmt.Errorf("nil source for passwd-formatted data") + } + + var ( + s = bufio.NewScanner(r) + out = []User{} + ) + + for s.Scan() { + if err := s.Err(); err != nil { + return nil, err + } + + text := strings.TrimSpace(s.Text()) + if text == "" { + continue + } + + // see: man 5 passwd + // name:password:UID:GID:GECOS:directory:shell + // Name:Pass:Uid:Gid:Gecos:Home:Shell + // root:x:0:0:root:/root:/bin/bash + // adm:x:3:4:adm:/var/adm:/bin/false + p := User{} + parseLine( + text, + &p.Name, &p.Pass, &p.Uid, &p.Gid, &p.Gecos, &p.Home, &p.Shell, + ) + + if filter == nil || filter(p) { + out = append(out, p) + } + } + + return out, nil +} + +func ParseGroupFile(path string) ([]Group, error) { + group, err := os.Open(path) + if err != nil { + return nil, err + } + defer group.Close() + return ParseGroup(group) +} + +func ParseGroup(group io.Reader) ([]Group, error) { + return ParseGroupFilter(group, nil) +} + +func ParseGroupFileFilter(path string, filter func(Group) bool) ([]Group, error) { + group, err := os.Open(path) + if err != nil { + return nil, err + } + defer group.Close() + return ParseGroupFilter(group, filter) +} + +func ParseGroupFilter(r io.Reader, filter func(Group) bool) ([]Group, error) { + if r == nil { + return nil, fmt.Errorf("nil source for group-formatted data") + } + + var ( + s = bufio.NewScanner(r) + out = []Group{} + ) + + for s.Scan() { + if err := s.Err(); err != nil { + return nil, err + } + + text := s.Text() + if text == "" { + continue + } + + // see: man 5 group + // group_name:password:GID:user_list + // Name:Pass:Gid:List + // root:x:0:root + // adm:x:4:root,adm,daemon + p := Group{} + parseLine( + text, + &p.Name, &p.Pass, &p.Gid, &p.List, + ) + + if filter == nil || filter(p) { + out = append(out, p) + } + } + + return out, nil +} + +type ExecUser struct { + Uid, Gid int + Sgids []int + Home string +} + +// GetExecUserPath is a wrapper for GetExecUser. It reads data from each of the +// given file paths and uses that data as the arguments to GetExecUser. If the +// files cannot be opened for any reason, the error is ignored and a nil +// io.Reader is passed instead. +func GetExecUserPath(userSpec string, defaults *ExecUser, passwdPath, groupPath string) (*ExecUser, error) { + passwd, err := os.Open(passwdPath) + if err != nil { + passwd = nil + } else { + defer passwd.Close() + } + + group, err := os.Open(groupPath) + if err != nil { + group = nil + } else { + defer group.Close() + } + + return GetExecUser(userSpec, defaults, passwd, group) +} + +// GetExecUser parses a user specification string (using the passwd and group +// readers as sources for /etc/passwd and /etc/group data, respectively). In +// the case of blank fields or missing data from the sources, the values in +// defaults is used. +// +// GetExecUser will return an error if a user or group literal could not be +// found in any entry in passwd and group respectively. +// +// Examples of valid user specifications are: +// * "" +// * "user" +// * "uid" +// * "user:group" +// * "uid:gid +// * "user:gid" +// * "uid:group" +func GetExecUser(userSpec string, defaults *ExecUser, passwd, group io.Reader) (*ExecUser, error) { + var ( + userArg, groupArg string + name string + ) + + if defaults == nil { + defaults = new(ExecUser) + } + + // Copy over defaults. + user := &ExecUser{ + Uid: defaults.Uid, + Gid: defaults.Gid, + Sgids: defaults.Sgids, + Home: defaults.Home, + } + + // Sgids slice *cannot* be nil. + if user.Sgids == nil { + user.Sgids = []int{} + } + + // allow for userArg to have either "user" syntax, or optionally "user:group" syntax + parseLine(userSpec, &userArg, &groupArg) + + users, err := ParsePasswdFilter(passwd, func(u User) bool { + if userArg == "" { + return u.Uid == user.Uid + } + return u.Name == userArg || strconv.Itoa(u.Uid) == userArg + }) + if err != nil && passwd != nil { + if userArg == "" { + userArg = strconv.Itoa(user.Uid) + } + return nil, fmt.Errorf("Unable to find user %v: %v", userArg, err) + } + + haveUser := users != nil && len(users) > 0 + if haveUser { + // if we found any user entries that matched our filter, let's take the first one as "correct" + name = users[0].Name + user.Uid = users[0].Uid + user.Gid = users[0].Gid + user.Home = users[0].Home + } else if userArg != "" { + // we asked for a user but didn't find them... let's check to see if we wanted a numeric user + user.Uid, err = strconv.Atoi(userArg) + if err != nil { + // not numeric - we have to bail + return nil, fmt.Errorf("Unable to find user %v", userArg) + } + + // Must be inside valid uid range. + if user.Uid < minId || user.Uid > maxId { + return nil, ErrRange + } + + // if userArg couldn't be found in /etc/passwd but is numeric, just roll with it - this is legit + } + + if groupArg != "" || name != "" { + groups, err := ParseGroupFilter(group, func(g Group) bool { + // Explicit group format takes precedence. + if groupArg != "" { + return g.Name == groupArg || strconv.Itoa(g.Gid) == groupArg + } + + // Check if user is a member. + for _, u := range g.List { + if u == name { + return true + } + } + + return false + }) + if err != nil && group != nil { + return nil, fmt.Errorf("Unable to find groups for user %v: %v", users[0].Name, err) + } + + haveGroup := groups != nil && len(groups) > 0 + if groupArg != "" { + if haveGroup { + // if we found any group entries that matched our filter, let's take the first one as "correct" + user.Gid = groups[0].Gid + } else { + // we asked for a group but didn't find id... let's check to see if we wanted a numeric group + user.Gid, err = strconv.Atoi(groupArg) + if err != nil { + // not numeric - we have to bail + return nil, fmt.Errorf("Unable to find group %v", groupArg) + } + + // Ensure gid is inside gid range. + if user.Gid < minId || user.Gid > maxId { + return nil, ErrRange + } + + // if groupArg couldn't be found in /etc/group but is numeric, just roll with it - this is legit + } + } else if haveGroup { + // If implicit group format, fill supplementary gids. + user.Sgids = make([]int, len(groups)) + for i, group := range groups { + user.Sgids[i] = group.Gid + } + } + } + + return user, nil +} + +// GetAdditionalGroupsPath looks up a list of groups by name or group id +// against the group file. If a group name cannot be found, an error will be +// returned. If a group id cannot be found, it will be returned as-is. +func GetAdditionalGroupsPath(additionalGroups []string, groupPath string) ([]int, error) { + groupReader, err := os.Open(groupPath) + if err != nil { + return nil, fmt.Errorf("Failed to open group file: %v", err) + } + defer groupReader.Close() + + groups, err := ParseGroupFilter(groupReader, func(g Group) bool { + for _, ag := range additionalGroups { + if g.Name == ag || strconv.Itoa(g.Gid) == ag { + return true + } + } + return false + }) + if err != nil { + return nil, fmt.Errorf("Unable to find additional groups %v: %v", additionalGroups, err) + } + + gidMap := make(map[int]struct{}) + for _, ag := range additionalGroups { + var found bool + for _, g := range groups { + // if we found a matched group either by name or gid, take the + // first matched as correct + if g.Name == ag || strconv.Itoa(g.Gid) == ag { + if _, ok := gidMap[g.Gid]; !ok { + gidMap[g.Gid] = struct{}{} + found = true + break + } + } + } + // we asked for a group but didn't find it. let's check to see + // if we wanted a numeric group + if !found { + gid, err := strconv.Atoi(ag) + if err != nil { + return nil, fmt.Errorf("Unable to find group %s", ag) + } + // Ensure gid is inside gid range. + if gid < minId || gid > maxId { + return nil, ErrRange + } + gidMap[gid] = struct{}{} + } + } + gids := []int{} + for gid := range gidMap { + gids = append(gids, gid) + } + return gids, nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/context/LICENSE b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/context/LICENSE new file mode 100644 index 0000000..0e5fb87 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/context/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2012 Rodrigo Moraes. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/context/README.md b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/context/README.md new file mode 100644 index 0000000..c60a31b --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/context/README.md @@ -0,0 +1,7 @@ +context +======= +[![Build Status](https://travis-ci.org/gorilla/context.png?branch=master)](https://travis-ci.org/gorilla/context) + +gorilla/context is a general purpose registry for global request variables. + +Read the full documentation here: http://www.gorillatoolkit.org/pkg/context diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/context/context.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/context/context.go new file mode 100644 index 0000000..81cb128 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/context/context.go @@ -0,0 +1,143 @@ +// Copyright 2012 The Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package context + +import ( + "net/http" + "sync" + "time" +) + +var ( + mutex sync.RWMutex + data = make(map[*http.Request]map[interface{}]interface{}) + datat = make(map[*http.Request]int64) +) + +// Set stores a value for a given key in a given request. +func Set(r *http.Request, key, val interface{}) { + mutex.Lock() + if data[r] == nil { + data[r] = make(map[interface{}]interface{}) + datat[r] = time.Now().Unix() + } + data[r][key] = val + mutex.Unlock() +} + +// Get returns a value stored for a given key in a given request. +func Get(r *http.Request, key interface{}) interface{} { + mutex.RLock() + if ctx := data[r]; ctx != nil { + value := ctx[key] + mutex.RUnlock() + return value + } + mutex.RUnlock() + return nil +} + +// GetOk returns stored value and presence state like multi-value return of map access. +func GetOk(r *http.Request, key interface{}) (interface{}, bool) { + mutex.RLock() + if _, ok := data[r]; ok { + value, ok := data[r][key] + mutex.RUnlock() + return value, ok + } + mutex.RUnlock() + return nil, false +} + +// GetAll returns all stored values for the request as a map. Nil is returned for invalid requests. +func GetAll(r *http.Request) map[interface{}]interface{} { + mutex.RLock() + if context, ok := data[r]; ok { + result := make(map[interface{}]interface{}, len(context)) + for k, v := range context { + result[k] = v + } + mutex.RUnlock() + return result + } + mutex.RUnlock() + return nil +} + +// GetAllOk returns all stored values for the request as a map and a boolean value that indicates if +// the request was registered. +func GetAllOk(r *http.Request) (map[interface{}]interface{}, bool) { + mutex.RLock() + context, ok := data[r] + result := make(map[interface{}]interface{}, len(context)) + for k, v := range context { + result[k] = v + } + mutex.RUnlock() + return result, ok +} + +// Delete removes a value stored for a given key in a given request. +func Delete(r *http.Request, key interface{}) { + mutex.Lock() + if data[r] != nil { + delete(data[r], key) + } + mutex.Unlock() +} + +// Clear removes all values stored for a given request. +// +// This is usually called by a handler wrapper to clean up request +// variables at the end of a request lifetime. See ClearHandler(). +func Clear(r *http.Request) { + mutex.Lock() + clear(r) + mutex.Unlock() +} + +// clear is Clear without the lock. +func clear(r *http.Request) { + delete(data, r) + delete(datat, r) +} + +// Purge removes request data stored for longer than maxAge, in seconds. +// It returns the amount of requests removed. +// +// If maxAge <= 0, all request data is removed. +// +// This is only used for sanity check: in case context cleaning was not +// properly set some request data can be kept forever, consuming an increasing +// amount of memory. In case this is detected, Purge() must be called +// periodically until the problem is fixed. +func Purge(maxAge int) int { + mutex.Lock() + count := 0 + if maxAge <= 0 { + count = len(data) + data = make(map[*http.Request]map[interface{}]interface{}) + datat = make(map[*http.Request]int64) + } else { + min := time.Now().Unix() - int64(maxAge) + for r := range data { + if datat[r] < min { + clear(r) + count++ + } + } + } + mutex.Unlock() + return count +} + +// ClearHandler wraps an http.Handler and clears request values at the end +// of a request lifetime. +func ClearHandler(h http.Handler) http.Handler { + return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + defer Clear(r) + h.ServeHTTP(w, r) + }) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/context/doc.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/context/doc.go new file mode 100644 index 0000000..73c7400 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/context/doc.go @@ -0,0 +1,82 @@ +// Copyright 2012 The Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +/* +Package context stores values shared during a request lifetime. + +For example, a router can set variables extracted from the URL and later +application handlers can access those values, or it can be used to store +sessions values to be saved at the end of a request. There are several +others common uses. + +The idea was posted by Brad Fitzpatrick to the go-nuts mailing list: + + http://groups.google.com/group/golang-nuts/msg/e2d679d303aa5d53 + +Here's the basic usage: first define the keys that you will need. The key +type is interface{} so a key can be of any type that supports equality. +Here we define a key using a custom int type to avoid name collisions: + + package foo + + import ( + "github.com/gorilla/context" + ) + + type key int + + const MyKey key = 0 + +Then set a variable. Variables are bound to an http.Request object, so you +need a request instance to set a value: + + context.Set(r, MyKey, "bar") + +The application can later access the variable using the same key you provided: + + func MyHandler(w http.ResponseWriter, r *http.Request) { + // val is "bar". + val := context.Get(r, foo.MyKey) + + // returns ("bar", true) + val, ok := context.GetOk(r, foo.MyKey) + // ... + } + +And that's all about the basic usage. We discuss some other ideas below. + +Any type can be stored in the context. To enforce a given type, make the key +private and wrap Get() and Set() to accept and return values of a specific +type: + + type key int + + const mykey key = 0 + + // GetMyKey returns a value for this package from the request values. + func GetMyKey(r *http.Request) SomeType { + if rv := context.Get(r, mykey); rv != nil { + return rv.(SomeType) + } + return nil + } + + // SetMyKey sets a value for this package in the request values. + func SetMyKey(r *http.Request, val SomeType) { + context.Set(r, mykey, val) + } + +Variables must be cleared at the end of a request, to remove all values +that were stored. This can be done in an http.Handler, after a request was +served. Just call Clear() passing the request: + + context.Clear(r) + +...or use ClearHandler(), which conveniently wraps an http.Handler to clear +variables at the end of a request lifetime. + +The Routers from the packages gorilla/mux and gorilla/pat call Clear() +so if you are using either of them you don't need to clear the context manually. +*/ +package context diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/LICENSE b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/LICENSE new file mode 100644 index 0000000..0e5fb87 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2012 Rodrigo Moraes. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/README.md b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/README.md new file mode 100644 index 0000000..9a046ff --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/README.md @@ -0,0 +1,235 @@ +mux +=== +[![GoDoc](https://godoc.org/github.com/gorilla/securecookie?status.svg)](https://godoc.org/github.com/gorilla/securecookie) +[![Build Status](https://travis-ci.org/gorilla/mux.png?branch=master)](https://travis-ci.org/gorilla/mux) + +Package gorilla/mux implements a request router and dispatcher. + +The name mux stands for "HTTP request multiplexer". Like the standard +http.ServeMux, mux.Router matches incoming requests against a list of +registered routes and calls a handler for the route that matches the URL +or other conditions. The main features are: + + * Requests can be matched based on URL host, path, path prefix, schemes, + header and query values, HTTP methods or using custom matchers. + * URL hosts and paths can have variables with an optional regular + expression. + * Registered URLs can be built, or "reversed", which helps maintaining + references to resources. + * Routes can be used as subrouters: nested routes are only tested if the + parent route matches. This is useful to define groups of routes that + share common conditions like a host, a path prefix or other repeated + attributes. As a bonus, this optimizes request matching. + * It implements the http.Handler interface so it is compatible with the + standard http.ServeMux. + +Let's start registering a couple of URL paths and handlers: + + func main() { + r := mux.NewRouter() + r.HandleFunc("/", HomeHandler) + r.HandleFunc("/products", ProductsHandler) + r.HandleFunc("/articles", ArticlesHandler) + http.Handle("/", r) + } + +Here we register three routes mapping URL paths to handlers. This is +equivalent to how http.HandleFunc() works: if an incoming request URL matches +one of the paths, the corresponding handler is called passing +(http.ResponseWriter, *http.Request) as parameters. + +Paths can have variables. They are defined using the format {name} or +{name:pattern}. If a regular expression pattern is not defined, the matched +variable will be anything until the next slash. For example: + + r := mux.NewRouter() + r.HandleFunc("/products/{key}", ProductHandler) + r.HandleFunc("/articles/{category}/", ArticlesCategoryHandler) + r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler) + +The names are used to create a map of route variables which can be retrieved +calling mux.Vars(): + + vars := mux.Vars(request) + category := vars["category"] + +And this is all you need to know about the basic usage. More advanced options +are explained below. + +Routes can also be restricted to a domain or subdomain. Just define a host +pattern to be matched. They can also have variables: + + r := mux.NewRouter() + // Only matches if domain is "www.example.com". + r.Host("www.example.com") + // Matches a dynamic subdomain. + r.Host("{subdomain:[a-z]+}.domain.com") + +There are several other matchers that can be added. To match path prefixes: + + r.PathPrefix("/products/") + +...or HTTP methods: + + r.Methods("GET", "POST") + +...or URL schemes: + + r.Schemes("https") + +...or header values: + + r.Headers("X-Requested-With", "XMLHttpRequest") + +...or query values: + + r.Queries("key", "value") + +...or to use a custom matcher function: + + r.MatcherFunc(func(r *http.Request, rm *RouteMatch) bool { + return r.ProtoMajor == 0 + }) + +...and finally, it is possible to combine several matchers in a single route: + + r.HandleFunc("/products", ProductsHandler). + Host("www.example.com"). + Methods("GET"). + Schemes("http") + +Setting the same matching conditions again and again can be boring, so we have +a way to group several routes that share the same requirements. +We call it "subrouting". + +For example, let's say we have several URLs that should only match when the +host is `www.example.com`. Create a route for that host and get a "subrouter" +from it: + + r := mux.NewRouter() + s := r.Host("www.example.com").Subrouter() + +Then register routes in the subrouter: + + s.HandleFunc("/products/", ProductsHandler) + s.HandleFunc("/products/{key}", ProductHandler) + s.HandleFunc("/articles/{category}/{id:[0-9]+}"), ArticleHandler) + +The three URL paths we registered above will only be tested if the domain is +`www.example.com`, because the subrouter is tested first. This is not +only convenient, but also optimizes request matching. You can create +subrouters combining any attribute matchers accepted by a route. + +Subrouters can be used to create domain or path "namespaces": you define +subrouters in a central place and then parts of the app can register its +paths relatively to a given subrouter. + +There's one more thing about subroutes. When a subrouter has a path prefix, +the inner routes use it as base for their paths: + + r := mux.NewRouter() + s := r.PathPrefix("/products").Subrouter() + // "/products/" + s.HandleFunc("/", ProductsHandler) + // "/products/{key}/" + s.HandleFunc("/{key}/", ProductHandler) + // "/products/{key}/details" + s.HandleFunc("/{key}/details", ProductDetailsHandler) + +Now let's see how to build registered URLs. + +Routes can be named. All routes that define a name can have their URLs built, +or "reversed". We define a name calling Name() on a route. For example: + + r := mux.NewRouter() + r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler). + Name("article") + +To build a URL, get the route and call the URL() method, passing a sequence of +key/value pairs for the route variables. For the previous route, we would do: + + url, err := r.Get("article").URL("category", "technology", "id", "42") + +...and the result will be a url.URL with the following path: + + "/articles/technology/42" + +This also works for host variables: + + r := mux.NewRouter() + r.Host("{subdomain}.domain.com"). + Path("/articles/{category}/{id:[0-9]+}"). + HandlerFunc(ArticleHandler). + Name("article") + + // url.String() will be "http://news.domain.com/articles/technology/42" + url, err := r.Get("article").URL("subdomain", "news", + "category", "technology", + "id", "42") + +All variables defined in the route are required, and their values must +conform to the corresponding patterns. These requirements guarantee that a +generated URL will always match a registered route -- the only exception is +for explicitly defined "build-only" routes which never match. + +Regex support also exists for matching Headers within a route. For example, we could do: + + r.HeadersRegexp("Content-Type", "application/(text|json)") + +...and the route will match both requests with a Content-Type of `application/json` as well as +`application/text` + +There's also a way to build only the URL host or path for a route: +use the methods URLHost() or URLPath() instead. For the previous route, +we would do: + + // "http://news.domain.com/" + host, err := r.Get("article").URLHost("subdomain", "news") + + // "/articles/technology/42" + path, err := r.Get("article").URLPath("category", "technology", "id", "42") + +And if you use subrouters, host and path defined separately can be built +as well: + + r := mux.NewRouter() + s := r.Host("{subdomain}.domain.com").Subrouter() + s.Path("/articles/{category}/{id:[0-9]+}"). + HandlerFunc(ArticleHandler). + Name("article") + + // "http://news.domain.com/articles/technology/42" + url, err := r.Get("article").URL("subdomain", "news", + "category", "technology", + "id", "42") + +## Full Example + +Here's a complete, runnable example of a small mux based server: + +```go +package main + +import ( + "net/http" + + "github.com/gorilla/mux" +) + +func YourHandler(w http.ResponseWriter, r *http.Request) { + w.Write([]byte("Gorilla!\n")) +} + +func main() { + r := mux.NewRouter() + // Routes consist of a path and a handler function. + r.HandleFunc("/", YourHandler) + + // Bind to a port and pass our router in + http.ListenAndServe(":8000", r) +} +``` + +## License + +BSD licensed. See the LICENSE file for details. diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/doc.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/doc.go new file mode 100644 index 0000000..49798cb --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/doc.go @@ -0,0 +1,206 @@ +// Copyright 2012 The Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +/* +Package gorilla/mux implements a request router and dispatcher. + +The name mux stands for "HTTP request multiplexer". Like the standard +http.ServeMux, mux.Router matches incoming requests against a list of +registered routes and calls a handler for the route that matches the URL +or other conditions. The main features are: + + * Requests can be matched based on URL host, path, path prefix, schemes, + header and query values, HTTP methods or using custom matchers. + * URL hosts and paths can have variables with an optional regular + expression. + * Registered URLs can be built, or "reversed", which helps maintaining + references to resources. + * Routes can be used as subrouters: nested routes are only tested if the + parent route matches. This is useful to define groups of routes that + share common conditions like a host, a path prefix or other repeated + attributes. As a bonus, this optimizes request matching. + * It implements the http.Handler interface so it is compatible with the + standard http.ServeMux. + +Let's start registering a couple of URL paths and handlers: + + func main() { + r := mux.NewRouter() + r.HandleFunc("/", HomeHandler) + r.HandleFunc("/products", ProductsHandler) + r.HandleFunc("/articles", ArticlesHandler) + http.Handle("/", r) + } + +Here we register three routes mapping URL paths to handlers. This is +equivalent to how http.HandleFunc() works: if an incoming request URL matches +one of the paths, the corresponding handler is called passing +(http.ResponseWriter, *http.Request) as parameters. + +Paths can have variables. They are defined using the format {name} or +{name:pattern}. If a regular expression pattern is not defined, the matched +variable will be anything until the next slash. For example: + + r := mux.NewRouter() + r.HandleFunc("/products/{key}", ProductHandler) + r.HandleFunc("/articles/{category}/", ArticlesCategoryHandler) + r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler) + +The names are used to create a map of route variables which can be retrieved +calling mux.Vars(): + + vars := mux.Vars(request) + category := vars["category"] + +And this is all you need to know about the basic usage. More advanced options +are explained below. + +Routes can also be restricted to a domain or subdomain. Just define a host +pattern to be matched. They can also have variables: + + r := mux.NewRouter() + // Only matches if domain is "www.example.com". + r.Host("www.example.com") + // Matches a dynamic subdomain. + r.Host("{subdomain:[a-z]+}.domain.com") + +There are several other matchers that can be added. To match path prefixes: + + r.PathPrefix("/products/") + +...or HTTP methods: + + r.Methods("GET", "POST") + +...or URL schemes: + + r.Schemes("https") + +...or header values: + + r.Headers("X-Requested-With", "XMLHttpRequest") + +...or query values: + + r.Queries("key", "value") + +...or to use a custom matcher function: + + r.MatcherFunc(func(r *http.Request, rm *RouteMatch) bool { + return r.ProtoMajor == 0 + }) + +...and finally, it is possible to combine several matchers in a single route: + + r.HandleFunc("/products", ProductsHandler). + Host("www.example.com"). + Methods("GET"). + Schemes("http") + +Setting the same matching conditions again and again can be boring, so we have +a way to group several routes that share the same requirements. +We call it "subrouting". + +For example, let's say we have several URLs that should only match when the +host is "www.example.com". Create a route for that host and get a "subrouter" +from it: + + r := mux.NewRouter() + s := r.Host("www.example.com").Subrouter() + +Then register routes in the subrouter: + + s.HandleFunc("/products/", ProductsHandler) + s.HandleFunc("/products/{key}", ProductHandler) + s.HandleFunc("/articles/{category}/{id:[0-9]+}"), ArticleHandler) + +The three URL paths we registered above will only be tested if the domain is +"www.example.com", because the subrouter is tested first. This is not +only convenient, but also optimizes request matching. You can create +subrouters combining any attribute matchers accepted by a route. + +Subrouters can be used to create domain or path "namespaces": you define +subrouters in a central place and then parts of the app can register its +paths relatively to a given subrouter. + +There's one more thing about subroutes. When a subrouter has a path prefix, +the inner routes use it as base for their paths: + + r := mux.NewRouter() + s := r.PathPrefix("/products").Subrouter() + // "/products/" + s.HandleFunc("/", ProductsHandler) + // "/products/{key}/" + s.HandleFunc("/{key}/", ProductHandler) + // "/products/{key}/details" + s.HandleFunc("/{key}/details", ProductDetailsHandler) + +Now let's see how to build registered URLs. + +Routes can be named. All routes that define a name can have their URLs built, +or "reversed". We define a name calling Name() on a route. For example: + + r := mux.NewRouter() + r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler). + Name("article") + +To build a URL, get the route and call the URL() method, passing a sequence of +key/value pairs for the route variables. For the previous route, we would do: + + url, err := r.Get("article").URL("category", "technology", "id", "42") + +...and the result will be a url.URL with the following path: + + "/articles/technology/42" + +This also works for host variables: + + r := mux.NewRouter() + r.Host("{subdomain}.domain.com"). + Path("/articles/{category}/{id:[0-9]+}"). + HandlerFunc(ArticleHandler). + Name("article") + + // url.String() will be "http://news.domain.com/articles/technology/42" + url, err := r.Get("article").URL("subdomain", "news", + "category", "technology", + "id", "42") + +All variables defined in the route are required, and their values must +conform to the corresponding patterns. These requirements guarantee that a +generated URL will always match a registered route -- the only exception is +for explicitly defined "build-only" routes which never match. + +Regex support also exists for matching Headers within a route. For example, we could do: + + r.HeadersRegexp("Content-Type", "application/(text|json)") + +...and the route will match both requests with a Content-Type of `application/json` as well as +`application/text` + +There's also a way to build only the URL host or path for a route: +use the methods URLHost() or URLPath() instead. For the previous route, +we would do: + + // "http://news.domain.com/" + host, err := r.Get("article").URLHost("subdomain", "news") + + // "/articles/technology/42" + path, err := r.Get("article").URLPath("category", "technology", "id", "42") + +And if you use subrouters, host and path defined separately can be built +as well: + + r := mux.NewRouter() + s := r.Host("{subdomain}.domain.com").Subrouter() + s.Path("/articles/{category}/{id:[0-9]+}"). + HandlerFunc(ArticleHandler). + Name("article") + + // "http://news.domain.com/articles/technology/42" + url, err := r.Get("article").URL("subdomain", "news", + "category", "technology", + "id", "42") +*/ +package mux diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/mux.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/mux.go new file mode 100644 index 0000000..b32e1a0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/mux.go @@ -0,0 +1,469 @@ +// Copyright 2012 The Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package mux + +import ( + "errors" + "fmt" + "net/http" + "path" + "regexp" + + "github.com/fsouza/go-dockerclient/external/github.com/gorilla/context" +) + +// NewRouter returns a new router instance. +func NewRouter() *Router { + return &Router{namedRoutes: make(map[string]*Route), KeepContext: false} +} + +// Router registers routes to be matched and dispatches a handler. +// +// It implements the http.Handler interface, so it can be registered to serve +// requests: +// +// var router = mux.NewRouter() +// +// func main() { +// http.Handle("/", router) +// } +// +// Or, for Google App Engine, register it in a init() function: +// +// func init() { +// http.Handle("/", router) +// } +// +// This will send all incoming requests to the router. +type Router struct { + // Configurable Handler to be used when no route matches. + NotFoundHandler http.Handler + // Parent route, if this is a subrouter. + parent parentRoute + // Routes to be matched, in order. + routes []*Route + // Routes by name for URL building. + namedRoutes map[string]*Route + // See Router.StrictSlash(). This defines the flag for new routes. + strictSlash bool + // If true, do not clear the request context after handling the request + KeepContext bool +} + +// Match matches registered routes against the request. +func (r *Router) Match(req *http.Request, match *RouteMatch) bool { + for _, route := range r.routes { + if route.Match(req, match) { + return true + } + } + return false +} + +// ServeHTTP dispatches the handler registered in the matched route. +// +// When there is a match, the route variables can be retrieved calling +// mux.Vars(request). +func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) { + // Clean path to canonical form and redirect. + if p := cleanPath(req.URL.Path); p != req.URL.Path { + + // Added 3 lines (Philip Schlump) - It was droping the query string and #whatever from query. + // This matches with fix in go 1.2 r.c. 4 for same problem. Go Issue: + // http://code.google.com/p/go/issues/detail?id=5252 + url := *req.URL + url.Path = p + p = url.String() + + w.Header().Set("Location", p) + w.WriteHeader(http.StatusMovedPermanently) + return + } + var match RouteMatch + var handler http.Handler + if r.Match(req, &match) { + handler = match.Handler + setVars(req, match.Vars) + setCurrentRoute(req, match.Route) + } + if handler == nil { + handler = r.NotFoundHandler + if handler == nil { + handler = http.NotFoundHandler() + } + } + if !r.KeepContext { + defer context.Clear(req) + } + handler.ServeHTTP(w, req) +} + +// Get returns a route registered with the given name. +func (r *Router) Get(name string) *Route { + return r.getNamedRoutes()[name] +} + +// GetRoute returns a route registered with the given name. This method +// was renamed to Get() and remains here for backwards compatibility. +func (r *Router) GetRoute(name string) *Route { + return r.getNamedRoutes()[name] +} + +// StrictSlash defines the trailing slash behavior for new routes. The initial +// value is false. +// +// When true, if the route path is "/path/", accessing "/path" will redirect +// to the former and vice versa. In other words, your application will always +// see the path as specified in the route. +// +// When false, if the route path is "/path", accessing "/path/" will not match +// this route and vice versa. +// +// Special case: when a route sets a path prefix using the PathPrefix() method, +// strict slash is ignored for that route because the redirect behavior can't +// be determined from a prefix alone. However, any subrouters created from that +// route inherit the original StrictSlash setting. +func (r *Router) StrictSlash(value bool) *Router { + r.strictSlash = value + return r +} + +// ---------------------------------------------------------------------------- +// parentRoute +// ---------------------------------------------------------------------------- + +// getNamedRoutes returns the map where named routes are registered. +func (r *Router) getNamedRoutes() map[string]*Route { + if r.namedRoutes == nil { + if r.parent != nil { + r.namedRoutes = r.parent.getNamedRoutes() + } else { + r.namedRoutes = make(map[string]*Route) + } + } + return r.namedRoutes +} + +// getRegexpGroup returns regexp definitions from the parent route, if any. +func (r *Router) getRegexpGroup() *routeRegexpGroup { + if r.parent != nil { + return r.parent.getRegexpGroup() + } + return nil +} + +func (r *Router) buildVars(m map[string]string) map[string]string { + if r.parent != nil { + m = r.parent.buildVars(m) + } + return m +} + +// ---------------------------------------------------------------------------- +// Route factories +// ---------------------------------------------------------------------------- + +// NewRoute registers an empty route. +func (r *Router) NewRoute() *Route { + route := &Route{parent: r, strictSlash: r.strictSlash} + r.routes = append(r.routes, route) + return route +} + +// Handle registers a new route with a matcher for the URL path. +// See Route.Path() and Route.Handler(). +func (r *Router) Handle(path string, handler http.Handler) *Route { + return r.NewRoute().Path(path).Handler(handler) +} + +// HandleFunc registers a new route with a matcher for the URL path. +// See Route.Path() and Route.HandlerFunc(). +func (r *Router) HandleFunc(path string, f func(http.ResponseWriter, + *http.Request)) *Route { + return r.NewRoute().Path(path).HandlerFunc(f) +} + +// Headers registers a new route with a matcher for request header values. +// See Route.Headers(). +func (r *Router) Headers(pairs ...string) *Route { + return r.NewRoute().Headers(pairs...) +} + +// Host registers a new route with a matcher for the URL host. +// See Route.Host(). +func (r *Router) Host(tpl string) *Route { + return r.NewRoute().Host(tpl) +} + +// MatcherFunc registers a new route with a custom matcher function. +// See Route.MatcherFunc(). +func (r *Router) MatcherFunc(f MatcherFunc) *Route { + return r.NewRoute().MatcherFunc(f) +} + +// Methods registers a new route with a matcher for HTTP methods. +// See Route.Methods(). +func (r *Router) Methods(methods ...string) *Route { + return r.NewRoute().Methods(methods...) +} + +// Path registers a new route with a matcher for the URL path. +// See Route.Path(). +func (r *Router) Path(tpl string) *Route { + return r.NewRoute().Path(tpl) +} + +// PathPrefix registers a new route with a matcher for the URL path prefix. +// See Route.PathPrefix(). +func (r *Router) PathPrefix(tpl string) *Route { + return r.NewRoute().PathPrefix(tpl) +} + +// Queries registers a new route with a matcher for URL query values. +// See Route.Queries(). +func (r *Router) Queries(pairs ...string) *Route { + return r.NewRoute().Queries(pairs...) +} + +// Schemes registers a new route with a matcher for URL schemes. +// See Route.Schemes(). +func (r *Router) Schemes(schemes ...string) *Route { + return r.NewRoute().Schemes(schemes...) +} + +// BuildVars registers a new route with a custom function for modifying +// route variables before building a URL. +func (r *Router) BuildVarsFunc(f BuildVarsFunc) *Route { + return r.NewRoute().BuildVarsFunc(f) +} + +// Walk walks the router and all its sub-routers, calling walkFn for each route +// in the tree. The routes are walked in the order they were added. Sub-routers +// are explored depth-first. +func (r *Router) Walk(walkFn WalkFunc) error { + return r.walk(walkFn, []*Route{}) +} + +// SkipRouter is used as a return value from WalkFuncs to indicate that the +// router that walk is about to descend down to should be skipped. +var SkipRouter = errors.New("skip this router") + +// WalkFunc is the type of the function called for each route visited by Walk. +// At every invocation, it is given the current route, and the current router, +// and a list of ancestor routes that lead to the current route. +type WalkFunc func(route *Route, router *Router, ancestors []*Route) error + +func (r *Router) walk(walkFn WalkFunc, ancestors []*Route) error { + for _, t := range r.routes { + if t.regexp == nil || t.regexp.path == nil || t.regexp.path.template == "" { + continue + } + + err := walkFn(t, r, ancestors) + if err == SkipRouter { + continue + } + for _, sr := range t.matchers { + if h, ok := sr.(*Router); ok { + err := h.walk(walkFn, ancestors) + if err != nil { + return err + } + } + } + if h, ok := t.handler.(*Router); ok { + ancestors = append(ancestors, t) + err := h.walk(walkFn, ancestors) + if err != nil { + return err + } + ancestors = ancestors[:len(ancestors)-1] + } + } + return nil +} + +// ---------------------------------------------------------------------------- +// Context +// ---------------------------------------------------------------------------- + +// RouteMatch stores information about a matched route. +type RouteMatch struct { + Route *Route + Handler http.Handler + Vars map[string]string +} + +type contextKey int + +const ( + varsKey contextKey = iota + routeKey +) + +// Vars returns the route variables for the current request, if any. +func Vars(r *http.Request) map[string]string { + if rv := context.Get(r, varsKey); rv != nil { + return rv.(map[string]string) + } + return nil +} + +// CurrentRoute returns the matched route for the current request, if any. +// This only works when called inside the handler of the matched route +// because the matched route is stored in the request context which is cleared +// after the handler returns, unless the KeepContext option is set on the +// Router. +func CurrentRoute(r *http.Request) *Route { + if rv := context.Get(r, routeKey); rv != nil { + return rv.(*Route) + } + return nil +} + +func setVars(r *http.Request, val interface{}) { + context.Set(r, varsKey, val) +} + +func setCurrentRoute(r *http.Request, val interface{}) { + context.Set(r, routeKey, val) +} + +// ---------------------------------------------------------------------------- +// Helpers +// ---------------------------------------------------------------------------- + +// cleanPath returns the canonical path for p, eliminating . and .. elements. +// Borrowed from the net/http package. +func cleanPath(p string) string { + if p == "" { + return "/" + } + if p[0] != '/' { + p = "/" + p + } + np := path.Clean(p) + // path.Clean removes trailing slash except for root; + // put the trailing slash back if necessary. + if p[len(p)-1] == '/' && np != "/" { + np += "/" + } + return np +} + +// uniqueVars returns an error if two slices contain duplicated strings. +func uniqueVars(s1, s2 []string) error { + for _, v1 := range s1 { + for _, v2 := range s2 { + if v1 == v2 { + return fmt.Errorf("mux: duplicated route variable %q", v2) + } + } + } + return nil +} + +func checkPairs(pairs ...string) (int, error) { + length := len(pairs) + if length%2 != 0 { + return length, fmt.Errorf( + "mux: number of parameters must be multiple of 2, got %v", pairs) + } + return length, nil +} + +// mapFromPairs converts variadic string parameters to a string map. +func mapFromPairsToString(pairs ...string) (map[string]string, error) { + length, err := checkPairs(pairs...) + if err != nil { + return nil, err + } + m := make(map[string]string, length/2) + for i := 0; i < length; i += 2 { + m[pairs[i]] = pairs[i+1] + } + return m, nil +} + +func mapFromPairsToRegex(pairs ...string) (map[string]*regexp.Regexp, error) { + length, err := checkPairs(pairs...) + if err != nil { + return nil, err + } + m := make(map[string]*regexp.Regexp, length/2) + for i := 0; i < length; i += 2 { + regex, err := regexp.Compile(pairs[i+1]) + if err != nil { + return nil, err + } + m[pairs[i]] = regex + } + return m, nil +} + +// matchInArray returns true if the given string value is in the array. +func matchInArray(arr []string, value string) bool { + for _, v := range arr { + if v == value { + return true + } + } + return false +} + +// matchMapWithString returns true if the given key/value pairs exist in a given map. +func matchMapWithString(toCheck map[string]string, toMatch map[string][]string, canonicalKey bool) bool { + for k, v := range toCheck { + // Check if key exists. + if canonicalKey { + k = http.CanonicalHeaderKey(k) + } + if values := toMatch[k]; values == nil { + return false + } else if v != "" { + // If value was defined as an empty string we only check that the + // key exists. Otherwise we also check for equality. + valueExists := false + for _, value := range values { + if v == value { + valueExists = true + break + } + } + if !valueExists { + return false + } + } + } + return true +} + +// matchMapWithRegex returns true if the given key/value pairs exist in a given map compiled against +// the given regex +func matchMapWithRegex(toCheck map[string]*regexp.Regexp, toMatch map[string][]string, canonicalKey bool) bool { + for k, v := range toCheck { + // Check if key exists. + if canonicalKey { + k = http.CanonicalHeaderKey(k) + } + if values := toMatch[k]; values == nil { + return false + } else if v != nil { + // If value was defined as an empty string we only check that the + // key exists. Otherwise we also check for equality. + valueExists := false + for _, value := range values { + if v.MatchString(value) { + valueExists = true + break + } + } + if !valueExists { + return false + } + } + } + return true +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/regexp.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/regexp.go new file mode 100644 index 0000000..06728dd --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/regexp.go @@ -0,0 +1,317 @@ +// Copyright 2012 The Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package mux + +import ( + "bytes" + "fmt" + "net/http" + "net/url" + "regexp" + "strconv" + "strings" +) + +// newRouteRegexp parses a route template and returns a routeRegexp, +// used to match a host, a path or a query string. +// +// It will extract named variables, assemble a regexp to be matched, create +// a "reverse" template to build URLs and compile regexps to validate variable +// values used in URL building. +// +// Previously we accepted only Python-like identifiers for variable +// names ([a-zA-Z_][a-zA-Z0-9_]*), but currently the only restriction is that +// name and pattern can't be empty, and names can't contain a colon. +func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash bool) (*routeRegexp, error) { + // Check if it is well-formed. + idxs, errBraces := braceIndices(tpl) + if errBraces != nil { + return nil, errBraces + } + // Backup the original. + template := tpl + // Now let's parse it. + defaultPattern := "[^/]+" + if matchQuery { + defaultPattern = "[^?&]*" + } else if matchHost { + defaultPattern = "[^.]+" + matchPrefix = false + } + // Only match strict slash if not matching + if matchPrefix || matchHost || matchQuery { + strictSlash = false + } + // Set a flag for strictSlash. + endSlash := false + if strictSlash && strings.HasSuffix(tpl, "/") { + tpl = tpl[:len(tpl)-1] + endSlash = true + } + varsN := make([]string, len(idxs)/2) + varsR := make([]*regexp.Regexp, len(idxs)/2) + pattern := bytes.NewBufferString("") + pattern.WriteByte('^') + reverse := bytes.NewBufferString("") + var end int + var err error + for i := 0; i < len(idxs); i += 2 { + // Set all values we are interested in. + raw := tpl[end:idxs[i]] + end = idxs[i+1] + parts := strings.SplitN(tpl[idxs[i]+1:end-1], ":", 2) + name := parts[0] + patt := defaultPattern + if len(parts) == 2 { + patt = parts[1] + } + // Name or pattern can't be empty. + if name == "" || patt == "" { + return nil, fmt.Errorf("mux: missing name or pattern in %q", + tpl[idxs[i]:end]) + } + // Build the regexp pattern. + varIdx := i / 2 + fmt.Fprintf(pattern, "%s(?P<%s>%s)", regexp.QuoteMeta(raw), varGroupName(varIdx), patt) + // Build the reverse template. + fmt.Fprintf(reverse, "%s%%s", raw) + + // Append variable name and compiled pattern. + varsN[varIdx] = name + varsR[varIdx], err = regexp.Compile(fmt.Sprintf("^%s$", patt)) + if err != nil { + return nil, err + } + } + // Add the remaining. + raw := tpl[end:] + pattern.WriteString(regexp.QuoteMeta(raw)) + if strictSlash { + pattern.WriteString("[/]?") + } + if matchQuery { + // Add the default pattern if the query value is empty + if queryVal := strings.SplitN(template, "=", 2)[1]; queryVal == "" { + pattern.WriteString(defaultPattern) + } + } + if !matchPrefix { + pattern.WriteByte('$') + } + reverse.WriteString(raw) + if endSlash { + reverse.WriteByte('/') + } + // Compile full regexp. + reg, errCompile := regexp.Compile(pattern.String()) + if errCompile != nil { + return nil, errCompile + } + // Done! + return &routeRegexp{ + template: template, + matchHost: matchHost, + matchQuery: matchQuery, + strictSlash: strictSlash, + regexp: reg, + reverse: reverse.String(), + varsN: varsN, + varsR: varsR, + }, nil +} + +// routeRegexp stores a regexp to match a host or path and information to +// collect and validate route variables. +type routeRegexp struct { + // The unmodified template. + template string + // True for host match, false for path or query string match. + matchHost bool + // True for query string match, false for path and host match. + matchQuery bool + // The strictSlash value defined on the route, but disabled if PathPrefix was used. + strictSlash bool + // Expanded regexp. + regexp *regexp.Regexp + // Reverse template. + reverse string + // Variable names. + varsN []string + // Variable regexps (validators). + varsR []*regexp.Regexp +} + +// Match matches the regexp against the URL host or path. +func (r *routeRegexp) Match(req *http.Request, match *RouteMatch) bool { + if !r.matchHost { + if r.matchQuery { + return r.matchQueryString(req) + } else { + return r.regexp.MatchString(req.URL.Path) + } + } + return r.regexp.MatchString(getHost(req)) +} + +// url builds a URL part using the given values. +func (r *routeRegexp) url(values map[string]string) (string, error) { + urlValues := make([]interface{}, len(r.varsN)) + for k, v := range r.varsN { + value, ok := values[v] + if !ok { + return "", fmt.Errorf("mux: missing route variable %q", v) + } + urlValues[k] = value + } + rv := fmt.Sprintf(r.reverse, urlValues...) + if !r.regexp.MatchString(rv) { + // The URL is checked against the full regexp, instead of checking + // individual variables. This is faster but to provide a good error + // message, we check individual regexps if the URL doesn't match. + for k, v := range r.varsN { + if !r.varsR[k].MatchString(values[v]) { + return "", fmt.Errorf( + "mux: variable %q doesn't match, expected %q", values[v], + r.varsR[k].String()) + } + } + } + return rv, nil +} + +// getUrlQuery returns a single query parameter from a request URL. +// For a URL with foo=bar&baz=ding, we return only the relevant key +// value pair for the routeRegexp. +func (r *routeRegexp) getUrlQuery(req *http.Request) string { + if !r.matchQuery { + return "" + } + templateKey := strings.SplitN(r.template, "=", 2)[0] + for key, vals := range req.URL.Query() { + if key == templateKey && len(vals) > 0 { + return key + "=" + vals[0] + } + } + return "" +} + +func (r *routeRegexp) matchQueryString(req *http.Request) bool { + return r.regexp.MatchString(r.getUrlQuery(req)) +} + +// braceIndices returns the first level curly brace indices from a string. +// It returns an error in case of unbalanced braces. +func braceIndices(s string) ([]int, error) { + var level, idx int + idxs := make([]int, 0) + for i := 0; i < len(s); i++ { + switch s[i] { + case '{': + if level++; level == 1 { + idx = i + } + case '}': + if level--; level == 0 { + idxs = append(idxs, idx, i+1) + } else if level < 0 { + return nil, fmt.Errorf("mux: unbalanced braces in %q", s) + } + } + } + if level != 0 { + return nil, fmt.Errorf("mux: unbalanced braces in %q", s) + } + return idxs, nil +} + +// varGroupName builds a capturing group name for the indexed variable. +func varGroupName(idx int) string { + return "v" + strconv.Itoa(idx) +} + +// ---------------------------------------------------------------------------- +// routeRegexpGroup +// ---------------------------------------------------------------------------- + +// routeRegexpGroup groups the route matchers that carry variables. +type routeRegexpGroup struct { + host *routeRegexp + path *routeRegexp + queries []*routeRegexp +} + +// setMatch extracts the variables from the URL once a route matches. +func (v *routeRegexpGroup) setMatch(req *http.Request, m *RouteMatch, r *Route) { + // Store host variables. + if v.host != nil { + hostVars := v.host.regexp.FindStringSubmatch(getHost(req)) + if hostVars != nil { + subexpNames := v.host.regexp.SubexpNames() + varName := 0 + for i, name := range subexpNames[1:] { + if name != "" && name == varGroupName(varName) { + m.Vars[v.host.varsN[varName]] = hostVars[i+1] + varName++ + } + } + } + } + // Store path variables. + if v.path != nil { + pathVars := v.path.regexp.FindStringSubmatch(req.URL.Path) + if pathVars != nil { + subexpNames := v.path.regexp.SubexpNames() + varName := 0 + for i, name := range subexpNames[1:] { + if name != "" && name == varGroupName(varName) { + m.Vars[v.path.varsN[varName]] = pathVars[i+1] + varName++ + } + } + // Check if we should redirect. + if v.path.strictSlash { + p1 := strings.HasSuffix(req.URL.Path, "/") + p2 := strings.HasSuffix(v.path.template, "/") + if p1 != p2 { + u, _ := url.Parse(req.URL.String()) + if p1 { + u.Path = u.Path[:len(u.Path)-1] + } else { + u.Path += "/" + } + m.Handler = http.RedirectHandler(u.String(), 301) + } + } + } + } + // Store query string variables. + for _, q := range v.queries { + queryVars := q.regexp.FindStringSubmatch(q.getUrlQuery(req)) + if queryVars != nil { + subexpNames := q.regexp.SubexpNames() + varName := 0 + for i, name := range subexpNames[1:] { + if name != "" && name == varGroupName(varName) { + m.Vars[q.varsN[varName]] = queryVars[i+1] + varName++ + } + } + } + } +} + +// getHost tries its best to return the request host. +func getHost(r *http.Request) string { + if r.URL.IsAbs() { + return r.URL.Host + } + host := r.Host + // Slice off any port information. + if i := strings.Index(host, ":"); i != -1 { + host = host[:i] + } + return host + +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/route.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/route.go new file mode 100644 index 0000000..8901304 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux/route.go @@ -0,0 +1,603 @@ +// Copyright 2012 The Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package mux + +import ( + "errors" + "fmt" + "net/http" + "net/url" + "regexp" + "strings" +) + +// Route stores information to match a request and build URLs. +type Route struct { + // Parent where the route was registered (a Router). + parent parentRoute + // Request handler for the route. + handler http.Handler + // List of matchers. + matchers []matcher + // Manager for the variables from host and path. + regexp *routeRegexpGroup + // If true, when the path pattern is "/path/", accessing "/path" will + // redirect to the former and vice versa. + strictSlash bool + // If true, this route never matches: it is only used to build URLs. + buildOnly bool + // The name used to build URLs. + name string + // Error resulted from building a route. + err error + + buildVarsFunc BuildVarsFunc +} + +// Match matches the route against the request. +func (r *Route) Match(req *http.Request, match *RouteMatch) bool { + if r.buildOnly || r.err != nil { + return false + } + // Match everything. + for _, m := range r.matchers { + if matched := m.Match(req, match); !matched { + return false + } + } + // Yay, we have a match. Let's collect some info about it. + if match.Route == nil { + match.Route = r + } + if match.Handler == nil { + match.Handler = r.handler + } + if match.Vars == nil { + match.Vars = make(map[string]string) + } + // Set variables. + if r.regexp != nil { + r.regexp.setMatch(req, match, r) + } + return true +} + +// ---------------------------------------------------------------------------- +// Route attributes +// ---------------------------------------------------------------------------- + +// GetError returns an error resulted from building the route, if any. +func (r *Route) GetError() error { + return r.err +} + +// BuildOnly sets the route to never match: it is only used to build URLs. +func (r *Route) BuildOnly() *Route { + r.buildOnly = true + return r +} + +// Handler -------------------------------------------------------------------- + +// Handler sets a handler for the route. +func (r *Route) Handler(handler http.Handler) *Route { + if r.err == nil { + r.handler = handler + } + return r +} + +// HandlerFunc sets a handler function for the route. +func (r *Route) HandlerFunc(f func(http.ResponseWriter, *http.Request)) *Route { + return r.Handler(http.HandlerFunc(f)) +} + +// GetHandler returns the handler for the route, if any. +func (r *Route) GetHandler() http.Handler { + return r.handler +} + +// Name ----------------------------------------------------------------------- + +// Name sets the name for the route, used to build URLs. +// If the name was registered already it will be overwritten. +func (r *Route) Name(name string) *Route { + if r.name != "" { + r.err = fmt.Errorf("mux: route already has name %q, can't set %q", + r.name, name) + } + if r.err == nil { + r.name = name + r.getNamedRoutes()[name] = r + } + return r +} + +// GetName returns the name for the route, if any. +func (r *Route) GetName() string { + return r.name +} + +// ---------------------------------------------------------------------------- +// Matchers +// ---------------------------------------------------------------------------- + +// matcher types try to match a request. +type matcher interface { + Match(*http.Request, *RouteMatch) bool +} + +// addMatcher adds a matcher to the route. +func (r *Route) addMatcher(m matcher) *Route { + if r.err == nil { + r.matchers = append(r.matchers, m) + } + return r +} + +// addRegexpMatcher adds a host or path matcher and builder to a route. +func (r *Route) addRegexpMatcher(tpl string, matchHost, matchPrefix, matchQuery bool) error { + if r.err != nil { + return r.err + } + r.regexp = r.getRegexpGroup() + if !matchHost && !matchQuery { + if len(tpl) == 0 || tpl[0] != '/' { + return fmt.Errorf("mux: path must start with a slash, got %q", tpl) + } + if r.regexp.path != nil { + tpl = strings.TrimRight(r.regexp.path.template, "/") + tpl + } + } + rr, err := newRouteRegexp(tpl, matchHost, matchPrefix, matchQuery, r.strictSlash) + if err != nil { + return err + } + for _, q := range r.regexp.queries { + if err = uniqueVars(rr.varsN, q.varsN); err != nil { + return err + } + } + if matchHost { + if r.regexp.path != nil { + if err = uniqueVars(rr.varsN, r.regexp.path.varsN); err != nil { + return err + } + } + r.regexp.host = rr + } else { + if r.regexp.host != nil { + if err = uniqueVars(rr.varsN, r.regexp.host.varsN); err != nil { + return err + } + } + if matchQuery { + r.regexp.queries = append(r.regexp.queries, rr) + } else { + r.regexp.path = rr + } + } + r.addMatcher(rr) + return nil +} + +// Headers -------------------------------------------------------------------- + +// headerMatcher matches the request against header values. +type headerMatcher map[string]string + +func (m headerMatcher) Match(r *http.Request, match *RouteMatch) bool { + return matchMapWithString(m, r.Header, true) +} + +// Headers adds a matcher for request header values. +// It accepts a sequence of key/value pairs to be matched. For example: +// +// r := mux.NewRouter() +// r.Headers("Content-Type", "application/json", +// "X-Requested-With", "XMLHttpRequest") +// +// The above route will only match if both request header values match. +// Alternatively, you can provide a regular expression and match the header as follows: +// +// r.Headers("Content-Type", "application/(text|json)", +// "X-Requested-With", "XMLHttpRequest") +// +// The above route will the same as the previous example, with the addition of matching +// application/text as well. +// +// It the value is an empty string, it will match any value if the key is set. +func (r *Route) Headers(pairs ...string) *Route { + if r.err == nil { + var headers map[string]string + headers, r.err = mapFromPairsToString(pairs...) + return r.addMatcher(headerMatcher(headers)) + } + return r +} + +// headerRegexMatcher matches the request against the route given a regex for the header +type headerRegexMatcher map[string]*regexp.Regexp + +func (m headerRegexMatcher) Match(r *http.Request, match *RouteMatch) bool { + return matchMapWithRegex(m, r.Header, true) +} + +// Regular expressions can be used with headers as well. +// It accepts a sequence of key/value pairs, where the value has regex support. For example +// r := mux.NewRouter() +// r.HeadersRegexp("Content-Type", "application/(text|json)", +// "X-Requested-With", "XMLHttpRequest") +// +// The above route will only match if both the request header matches both regular expressions. +// It the value is an empty string, it will match any value if the key is set. +func (r *Route) HeadersRegexp(pairs ...string) *Route { + if r.err == nil { + var headers map[string]*regexp.Regexp + headers, r.err = mapFromPairsToRegex(pairs...) + return r.addMatcher(headerRegexMatcher(headers)) + } + return r +} + +// Host ----------------------------------------------------------------------- + +// Host adds a matcher for the URL host. +// It accepts a template with zero or more URL variables enclosed by {}. +// Variables can define an optional regexp pattern to be matched: +// +// - {name} matches anything until the next dot. +// +// - {name:pattern} matches the given regexp pattern. +// +// For example: +// +// r := mux.NewRouter() +// r.Host("www.example.com") +// r.Host("{subdomain}.domain.com") +// r.Host("{subdomain:[a-z]+}.domain.com") +// +// Variable names must be unique in a given route. They can be retrieved +// calling mux.Vars(request). +func (r *Route) Host(tpl string) *Route { + r.err = r.addRegexpMatcher(tpl, true, false, false) + return r +} + +// MatcherFunc ---------------------------------------------------------------- + +// MatcherFunc is the function signature used by custom matchers. +type MatcherFunc func(*http.Request, *RouteMatch) bool + +func (m MatcherFunc) Match(r *http.Request, match *RouteMatch) bool { + return m(r, match) +} + +// MatcherFunc adds a custom function to be used as request matcher. +func (r *Route) MatcherFunc(f MatcherFunc) *Route { + return r.addMatcher(f) +} + +// Methods -------------------------------------------------------------------- + +// methodMatcher matches the request against HTTP methods. +type methodMatcher []string + +func (m methodMatcher) Match(r *http.Request, match *RouteMatch) bool { + return matchInArray(m, r.Method) +} + +// Methods adds a matcher for HTTP methods. +// It accepts a sequence of one or more methods to be matched, e.g.: +// "GET", "POST", "PUT". +func (r *Route) Methods(methods ...string) *Route { + for k, v := range methods { + methods[k] = strings.ToUpper(v) + } + return r.addMatcher(methodMatcher(methods)) +} + +// Path ----------------------------------------------------------------------- + +// Path adds a matcher for the URL path. +// It accepts a template with zero or more URL variables enclosed by {}. The +// template must start with a "/". +// Variables can define an optional regexp pattern to be matched: +// +// - {name} matches anything until the next slash. +// +// - {name:pattern} matches the given regexp pattern. +// +// For example: +// +// r := mux.NewRouter() +// r.Path("/products/").Handler(ProductsHandler) +// r.Path("/products/{key}").Handler(ProductsHandler) +// r.Path("/articles/{category}/{id:[0-9]+}"). +// Handler(ArticleHandler) +// +// Variable names must be unique in a given route. They can be retrieved +// calling mux.Vars(request). +func (r *Route) Path(tpl string) *Route { + r.err = r.addRegexpMatcher(tpl, false, false, false) + return r +} + +// PathPrefix ----------------------------------------------------------------- + +// PathPrefix adds a matcher for the URL path prefix. This matches if the given +// template is a prefix of the full URL path. See Route.Path() for details on +// the tpl argument. +// +// Note that it does not treat slashes specially ("/foobar/" will be matched by +// the prefix "/foo") so you may want to use a trailing slash here. +// +// Also note that the setting of Router.StrictSlash() has no effect on routes +// with a PathPrefix matcher. +func (r *Route) PathPrefix(tpl string) *Route { + r.err = r.addRegexpMatcher(tpl, false, true, false) + return r +} + +// Query ---------------------------------------------------------------------- + +// Queries adds a matcher for URL query values. +// It accepts a sequence of key/value pairs. Values may define variables. +// For example: +// +// r := mux.NewRouter() +// r.Queries("foo", "bar", "id", "{id:[0-9]+}") +// +// The above route will only match if the URL contains the defined queries +// values, e.g.: ?foo=bar&id=42. +// +// It the value is an empty string, it will match any value if the key is set. +// +// Variables can define an optional regexp pattern to be matched: +// +// - {name} matches anything until the next slash. +// +// - {name:pattern} matches the given regexp pattern. +func (r *Route) Queries(pairs ...string) *Route { + length := len(pairs) + if length%2 != 0 { + r.err = fmt.Errorf( + "mux: number of parameters must be multiple of 2, got %v", pairs) + return nil + } + for i := 0; i < length; i += 2 { + if r.err = r.addRegexpMatcher(pairs[i]+"="+pairs[i+1], false, false, true); r.err != nil { + return r + } + } + + return r +} + +// Schemes -------------------------------------------------------------------- + +// schemeMatcher matches the request against URL schemes. +type schemeMatcher []string + +func (m schemeMatcher) Match(r *http.Request, match *RouteMatch) bool { + return matchInArray(m, r.URL.Scheme) +} + +// Schemes adds a matcher for URL schemes. +// It accepts a sequence of schemes to be matched, e.g.: "http", "https". +func (r *Route) Schemes(schemes ...string) *Route { + for k, v := range schemes { + schemes[k] = strings.ToLower(v) + } + return r.addMatcher(schemeMatcher(schemes)) +} + +// BuildVarsFunc -------------------------------------------------------------- + +// BuildVarsFunc is the function signature used by custom build variable +// functions (which can modify route variables before a route's URL is built). +type BuildVarsFunc func(map[string]string) map[string]string + +// BuildVarsFunc adds a custom function to be used to modify build variables +// before a route's URL is built. +func (r *Route) BuildVarsFunc(f BuildVarsFunc) *Route { + r.buildVarsFunc = f + return r +} + +// Subrouter ------------------------------------------------------------------ + +// Subrouter creates a subrouter for the route. +// +// It will test the inner routes only if the parent route matched. For example: +// +// r := mux.NewRouter() +// s := r.Host("www.example.com").Subrouter() +// s.HandleFunc("/products/", ProductsHandler) +// s.HandleFunc("/products/{key}", ProductHandler) +// s.HandleFunc("/articles/{category}/{id:[0-9]+}"), ArticleHandler) +// +// Here, the routes registered in the subrouter won't be tested if the host +// doesn't match. +func (r *Route) Subrouter() *Router { + router := &Router{parent: r, strictSlash: r.strictSlash} + r.addMatcher(router) + return router +} + +// ---------------------------------------------------------------------------- +// URL building +// ---------------------------------------------------------------------------- + +// URL builds a URL for the route. +// +// It accepts a sequence of key/value pairs for the route variables. For +// example, given this route: +// +// r := mux.NewRouter() +// r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler). +// Name("article") +// +// ...a URL for it can be built using: +// +// url, err := r.Get("article").URL("category", "technology", "id", "42") +// +// ...which will return an url.URL with the following path: +// +// "/articles/technology/42" +// +// This also works for host variables: +// +// r := mux.NewRouter() +// r.Host("{subdomain}.domain.com"). +// HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler). +// Name("article") +// +// // url.String() will be "http://news.domain.com/articles/technology/42" +// url, err := r.Get("article").URL("subdomain", "news", +// "category", "technology", +// "id", "42") +// +// All variables defined in the route are required, and their values must +// conform to the corresponding patterns. +func (r *Route) URL(pairs ...string) (*url.URL, error) { + if r.err != nil { + return nil, r.err + } + if r.regexp == nil { + return nil, errors.New("mux: route doesn't have a host or path") + } + values, err := r.prepareVars(pairs...) + if err != nil { + return nil, err + } + var scheme, host, path string + if r.regexp.host != nil { + // Set a default scheme. + scheme = "http" + if host, err = r.regexp.host.url(values); err != nil { + return nil, err + } + } + if r.regexp.path != nil { + if path, err = r.regexp.path.url(values); err != nil { + return nil, err + } + } + return &url.URL{ + Scheme: scheme, + Host: host, + Path: path, + }, nil +} + +// URLHost builds the host part of the URL for a route. See Route.URL(). +// +// The route must have a host defined. +func (r *Route) URLHost(pairs ...string) (*url.URL, error) { + if r.err != nil { + return nil, r.err + } + if r.regexp == nil || r.regexp.host == nil { + return nil, errors.New("mux: route doesn't have a host") + } + values, err := r.prepareVars(pairs...) + if err != nil { + return nil, err + } + host, err := r.regexp.host.url(values) + if err != nil { + return nil, err + } + return &url.URL{ + Scheme: "http", + Host: host, + }, nil +} + +// URLPath builds the path part of the URL for a route. See Route.URL(). +// +// The route must have a path defined. +func (r *Route) URLPath(pairs ...string) (*url.URL, error) { + if r.err != nil { + return nil, r.err + } + if r.regexp == nil || r.regexp.path == nil { + return nil, errors.New("mux: route doesn't have a path") + } + values, err := r.prepareVars(pairs...) + if err != nil { + return nil, err + } + path, err := r.regexp.path.url(values) + if err != nil { + return nil, err + } + return &url.URL{ + Path: path, + }, nil +} + +// prepareVars converts the route variable pairs into a map. If the route has a +// BuildVarsFunc, it is invoked. +func (r *Route) prepareVars(pairs ...string) (map[string]string, error) { + m, err := mapFromPairsToString(pairs...) + if err != nil { + return nil, err + } + return r.buildVars(m), nil +} + +func (r *Route) buildVars(m map[string]string) map[string]string { + if r.parent != nil { + m = r.parent.buildVars(m) + } + if r.buildVarsFunc != nil { + m = r.buildVarsFunc(m) + } + return m +} + +// ---------------------------------------------------------------------------- +// parentRoute +// ---------------------------------------------------------------------------- + +// parentRoute allows routes to know about parent host and path definitions. +type parentRoute interface { + getNamedRoutes() map[string]*Route + getRegexpGroup() *routeRegexpGroup + buildVars(map[string]string) map[string]string +} + +// getNamedRoutes returns the map where named routes are registered. +func (r *Route) getNamedRoutes() map[string]*Route { + if r.parent == nil { + // During tests router is not always set. + r.parent = NewRouter() + } + return r.parent.getNamedRoutes() +} + +// getRegexpGroup returns regexp definitions from this route. +func (r *Route) getRegexpGroup() *routeRegexpGroup { + if r.regexp == nil { + if r.parent == nil { + // During tests router is not always set. + r.parent = NewRouter() + } + regexp := r.parent.getRegexpGroup() + if regexp == nil { + r.regexp = new(routeRegexpGroup) + } else { + // Copy. + r.regexp = &routeRegexpGroup{ + host: regexp.host, + path: regexp.path, + queries: regexp.queries, + } + } + } + return r.regexp +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user/MAINTAINERS b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user/MAINTAINERS new file mode 100644 index 0000000..edbe200 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user/MAINTAINERS @@ -0,0 +1,2 @@ +Tianon Gravi (@tianon) +Aleksa Sarai (@cyphar) diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user/lookup.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user/lookup.go new file mode 100644 index 0000000..6f8a982 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user/lookup.go @@ -0,0 +1,108 @@ +package user + +import ( + "errors" + "fmt" + "syscall" +) + +var ( + // The current operating system does not provide the required data for user lookups. + ErrUnsupported = errors.New("user lookup: operating system does not provide passwd-formatted data") +) + +func lookupUser(filter func(u User) bool) (User, error) { + // Get operating system-specific passwd reader-closer. + passwd, err := GetPasswd() + if err != nil { + return User{}, err + } + defer passwd.Close() + + // Get the users. + users, err := ParsePasswdFilter(passwd, filter) + if err != nil { + return User{}, err + } + + // No user entries found. + if len(users) == 0 { + return User{}, fmt.Errorf("no matching entries in passwd file") + } + + // Assume the first entry is the "correct" one. + return users[0], nil +} + +// CurrentUser looks up the current user by their user id in /etc/passwd. If the +// user cannot be found (or there is no /etc/passwd file on the filesystem), +// then CurrentUser returns an error. +func CurrentUser() (User, error) { + return LookupUid(syscall.Getuid()) +} + +// LookupUser looks up a user by their username in /etc/passwd. If the user +// cannot be found (or there is no /etc/passwd file on the filesystem), then +// LookupUser returns an error. +func LookupUser(username string) (User, error) { + return lookupUser(func(u User) bool { + return u.Name == username + }) +} + +// LookupUid looks up a user by their user id in /etc/passwd. If the user cannot +// be found (or there is no /etc/passwd file on the filesystem), then LookupId +// returns an error. +func LookupUid(uid int) (User, error) { + return lookupUser(func(u User) bool { + return u.Uid == uid + }) +} + +func lookupGroup(filter func(g Group) bool) (Group, error) { + // Get operating system-specific group reader-closer. + group, err := GetGroup() + if err != nil { + return Group{}, err + } + defer group.Close() + + // Get the users. + groups, err := ParseGroupFilter(group, filter) + if err != nil { + return Group{}, err + } + + // No user entries found. + if len(groups) == 0 { + return Group{}, fmt.Errorf("no matching entries in group file") + } + + // Assume the first entry is the "correct" one. + return groups[0], nil +} + +// CurrentGroup looks up the current user's group by their primary group id's +// entry in /etc/passwd. If the group cannot be found (or there is no +// /etc/group file on the filesystem), then CurrentGroup returns an error. +func CurrentGroup() (Group, error) { + return LookupGid(syscall.Getgid()) +} + +// LookupGroup looks up a group by its name in /etc/group. If the group cannot +// be found (or there is no /etc/group file on the filesystem), then LookupGroup +// returns an error. +func LookupGroup(groupname string) (Group, error) { + return lookupGroup(func(g Group) bool { + return g.Name == groupname + }) +} + +// LookupGid looks up a group by its group id in /etc/group. If the group cannot +// be found (or there is no /etc/group file on the filesystem), then LookupGid +// returns an error. +func LookupGid(gid int) (Group, error) { + return lookupGroup(func(g Group) bool { + return g.Gid == gid + }) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user/lookup_unix.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user/lookup_unix.go new file mode 100644 index 0000000..758b734 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user/lookup_unix.go @@ -0,0 +1,30 @@ +// +build darwin dragonfly freebsd linux netbsd openbsd solaris + +package user + +import ( + "io" + "os" +) + +// Unix-specific path to the passwd and group formatted files. +const ( + unixPasswdPath = "/etc/passwd" + unixGroupPath = "/etc/group" +) + +func GetPasswdPath() (string, error) { + return unixPasswdPath, nil +} + +func GetPasswd() (io.ReadCloser, error) { + return os.Open(unixPasswdPath) +} + +func GetGroupPath() (string, error) { + return unixGroupPath, nil +} + +func GetGroup() (io.ReadCloser, error) { + return os.Open(unixGroupPath) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user/lookup_unsupported.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user/lookup_unsupported.go new file mode 100644 index 0000000..7217948 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user/lookup_unsupported.go @@ -0,0 +1,21 @@ +// +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris + +package user + +import "io" + +func GetPasswdPath() (string, error) { + return "", ErrUnsupported +} + +func GetPasswd() (io.ReadCloser, error) { + return nil, ErrUnsupported +} + +func GetGroupPath() (string, error) { + return "", ErrUnsupported +} + +func GetGroup() (io.ReadCloser, error) { + return nil, ErrUnsupported +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user/user.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user/user.go new file mode 100644 index 0000000..964e31b --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/github.com/opencontainers/runc/libcontainer/user/user.go @@ -0,0 +1,413 @@ +package user + +import ( + "bufio" + "fmt" + "io" + "os" + "strconv" + "strings" +) + +const ( + minId = 0 + maxId = 1<<31 - 1 //for 32-bit systems compatibility +) + +var ( + ErrRange = fmt.Errorf("Uids and gids must be in range %d-%d", minId, maxId) +) + +type User struct { + Name string + Pass string + Uid int + Gid int + Gecos string + Home string + Shell string +} + +type Group struct { + Name string + Pass string + Gid int + List []string +} + +func parseLine(line string, v ...interface{}) { + if line == "" { + return + } + + parts := strings.Split(line, ":") + for i, p := range parts { + if len(v) <= i { + // if we have more "parts" than we have places to put them, bail for great "tolerance" of naughty configuration files + break + } + + switch e := v[i].(type) { + case *string: + // "root", "adm", "/bin/bash" + *e = p + case *int: + // "0", "4", "1000" + // ignore string to int conversion errors, for great "tolerance" of naughty configuration files + *e, _ = strconv.Atoi(p) + case *[]string: + // "", "root", "root,adm,daemon" + if p != "" { + *e = strings.Split(p, ",") + } else { + *e = []string{} + } + default: + // panic, because this is a programming/logic error, not a runtime one + panic("parseLine expects only pointers! argument " + strconv.Itoa(i) + " is not a pointer!") + } + } +} + +func ParsePasswdFile(path string) ([]User, error) { + passwd, err := os.Open(path) + if err != nil { + return nil, err + } + defer passwd.Close() + return ParsePasswd(passwd) +} + +func ParsePasswd(passwd io.Reader) ([]User, error) { + return ParsePasswdFilter(passwd, nil) +} + +func ParsePasswdFileFilter(path string, filter func(User) bool) ([]User, error) { + passwd, err := os.Open(path) + if err != nil { + return nil, err + } + defer passwd.Close() + return ParsePasswdFilter(passwd, filter) +} + +func ParsePasswdFilter(r io.Reader, filter func(User) bool) ([]User, error) { + if r == nil { + return nil, fmt.Errorf("nil source for passwd-formatted data") + } + + var ( + s = bufio.NewScanner(r) + out = []User{} + ) + + for s.Scan() { + if err := s.Err(); err != nil { + return nil, err + } + + text := strings.TrimSpace(s.Text()) + if text == "" { + continue + } + + // see: man 5 passwd + // name:password:UID:GID:GECOS:directory:shell + // Name:Pass:Uid:Gid:Gecos:Home:Shell + // root:x:0:0:root:/root:/bin/bash + // adm:x:3:4:adm:/var/adm:/bin/false + p := User{} + parseLine( + text, + &p.Name, &p.Pass, &p.Uid, &p.Gid, &p.Gecos, &p.Home, &p.Shell, + ) + + if filter == nil || filter(p) { + out = append(out, p) + } + } + + return out, nil +} + +func ParseGroupFile(path string) ([]Group, error) { + group, err := os.Open(path) + if err != nil { + return nil, err + } + defer group.Close() + return ParseGroup(group) +} + +func ParseGroup(group io.Reader) ([]Group, error) { + return ParseGroupFilter(group, nil) +} + +func ParseGroupFileFilter(path string, filter func(Group) bool) ([]Group, error) { + group, err := os.Open(path) + if err != nil { + return nil, err + } + defer group.Close() + return ParseGroupFilter(group, filter) +} + +func ParseGroupFilter(r io.Reader, filter func(Group) bool) ([]Group, error) { + if r == nil { + return nil, fmt.Errorf("nil source for group-formatted data") + } + + var ( + s = bufio.NewScanner(r) + out = []Group{} + ) + + for s.Scan() { + if err := s.Err(); err != nil { + return nil, err + } + + text := s.Text() + if text == "" { + continue + } + + // see: man 5 group + // group_name:password:GID:user_list + // Name:Pass:Gid:List + // root:x:0:root + // adm:x:4:root,adm,daemon + p := Group{} + parseLine( + text, + &p.Name, &p.Pass, &p.Gid, &p.List, + ) + + if filter == nil || filter(p) { + out = append(out, p) + } + } + + return out, nil +} + +type ExecUser struct { + Uid, Gid int + Sgids []int + Home string +} + +// GetExecUserPath is a wrapper for GetExecUser. It reads data from each of the +// given file paths and uses that data as the arguments to GetExecUser. If the +// files cannot be opened for any reason, the error is ignored and a nil +// io.Reader is passed instead. +func GetExecUserPath(userSpec string, defaults *ExecUser, passwdPath, groupPath string) (*ExecUser, error) { + passwd, err := os.Open(passwdPath) + if err != nil { + passwd = nil + } else { + defer passwd.Close() + } + + group, err := os.Open(groupPath) + if err != nil { + group = nil + } else { + defer group.Close() + } + + return GetExecUser(userSpec, defaults, passwd, group) +} + +// GetExecUser parses a user specification string (using the passwd and group +// readers as sources for /etc/passwd and /etc/group data, respectively). In +// the case of blank fields or missing data from the sources, the values in +// defaults is used. +// +// GetExecUser will return an error if a user or group literal could not be +// found in any entry in passwd and group respectively. +// +// Examples of valid user specifications are: +// * "" +// * "user" +// * "uid" +// * "user:group" +// * "uid:gid +// * "user:gid" +// * "uid:group" +func GetExecUser(userSpec string, defaults *ExecUser, passwd, group io.Reader) (*ExecUser, error) { + var ( + userArg, groupArg string + name string + ) + + if defaults == nil { + defaults = new(ExecUser) + } + + // Copy over defaults. + user := &ExecUser{ + Uid: defaults.Uid, + Gid: defaults.Gid, + Sgids: defaults.Sgids, + Home: defaults.Home, + } + + // Sgids slice *cannot* be nil. + if user.Sgids == nil { + user.Sgids = []int{} + } + + // allow for userArg to have either "user" syntax, or optionally "user:group" syntax + parseLine(userSpec, &userArg, &groupArg) + + users, err := ParsePasswdFilter(passwd, func(u User) bool { + if userArg == "" { + return u.Uid == user.Uid + } + return u.Name == userArg || strconv.Itoa(u.Uid) == userArg + }) + if err != nil && passwd != nil { + if userArg == "" { + userArg = strconv.Itoa(user.Uid) + } + return nil, fmt.Errorf("Unable to find user %v: %v", userArg, err) + } + + haveUser := users != nil && len(users) > 0 + if haveUser { + // if we found any user entries that matched our filter, let's take the first one as "correct" + name = users[0].Name + user.Uid = users[0].Uid + user.Gid = users[0].Gid + user.Home = users[0].Home + } else if userArg != "" { + // we asked for a user but didn't find them... let's check to see if we wanted a numeric user + user.Uid, err = strconv.Atoi(userArg) + if err != nil { + // not numeric - we have to bail + return nil, fmt.Errorf("Unable to find user %v", userArg) + } + + // Must be inside valid uid range. + if user.Uid < minId || user.Uid > maxId { + return nil, ErrRange + } + + // if userArg couldn't be found in /etc/passwd but is numeric, just roll with it - this is legit + } + + if groupArg != "" || name != "" { + groups, err := ParseGroupFilter(group, func(g Group) bool { + // Explicit group format takes precedence. + if groupArg != "" { + return g.Name == groupArg || strconv.Itoa(g.Gid) == groupArg + } + + // Check if user is a member. + for _, u := range g.List { + if u == name { + return true + } + } + + return false + }) + if err != nil && group != nil { + return nil, fmt.Errorf("Unable to find groups for user %v: %v", users[0].Name, err) + } + + haveGroup := groups != nil && len(groups) > 0 + if groupArg != "" { + if haveGroup { + // if we found any group entries that matched our filter, let's take the first one as "correct" + user.Gid = groups[0].Gid + } else { + // we asked for a group but didn't find id... let's check to see if we wanted a numeric group + user.Gid, err = strconv.Atoi(groupArg) + if err != nil { + // not numeric - we have to bail + return nil, fmt.Errorf("Unable to find group %v", groupArg) + } + + // Ensure gid is inside gid range. + if user.Gid < minId || user.Gid > maxId { + return nil, ErrRange + } + + // if groupArg couldn't be found in /etc/group but is numeric, just roll with it - this is legit + } + } else if haveGroup { + // If implicit group format, fill supplementary gids. + user.Sgids = make([]int, len(groups)) + for i, group := range groups { + user.Sgids[i] = group.Gid + } + } + } + + return user, nil +} + +// GetAdditionalGroups looks up a list of groups by name or group id against +// against the given /etc/group formatted data. If a group name cannot be found, +// an error will be returned. If a group id cannot be found, it will be returned +// as-is. +func GetAdditionalGroups(additionalGroups []string, group io.Reader) ([]int, error) { + groups, err := ParseGroupFilter(group, func(g Group) bool { + for _, ag := range additionalGroups { + if g.Name == ag || strconv.Itoa(g.Gid) == ag { + return true + } + } + return false + }) + if err != nil { + return nil, fmt.Errorf("Unable to find additional groups %v: %v", additionalGroups, err) + } + + gidMap := make(map[int]struct{}) + for _, ag := range additionalGroups { + var found bool + for _, g := range groups { + // if we found a matched group either by name or gid, take the + // first matched as correct + if g.Name == ag || strconv.Itoa(g.Gid) == ag { + if _, ok := gidMap[g.Gid]; !ok { + gidMap[g.Gid] = struct{}{} + found = true + break + } + } + } + // we asked for a group but didn't find it. let's check to see + // if we wanted a numeric group + if !found { + gid, err := strconv.Atoi(ag) + if err != nil { + return nil, fmt.Errorf("Unable to find group %s", ag) + } + // Ensure gid is inside gid range. + if gid < minId || gid > maxId { + return nil, ErrRange + } + gidMap[gid] = struct{}{} + } + } + gids := []int{} + for gid := range gidMap { + gids = append(gids, gid) + } + return gids, nil +} + +// Wrapper around GetAdditionalGroups that opens the groupPath given and gives +// it as an argument to GetAdditionalGroups. +func GetAdditionalGroupsPath(additionalGroups []string, groupPath string) ([]int, error) { + group, err := os.Open(groupPath) + if err != nil { + return nil, fmt.Errorf("Failed to open group file: %v", err) + } + defer group.Close() + return GetAdditionalGroups(additionalGroups, group) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/image.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/image.go new file mode 100644 index 0000000..9d21da2 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/image.go @@ -0,0 +1,595 @@ +// Copyright 2015 go-dockerclient authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package docker + +import ( + "bytes" + "encoding/base64" + "encoding/json" + "errors" + "fmt" + "io" + "net/http" + "net/url" + "os" + "time" +) + +// APIImages represent an image returned in the ListImages call. +type APIImages struct { + ID string `json:"Id" yaml:"Id"` + RepoTags []string `json:"RepoTags,omitempty" yaml:"RepoTags,omitempty"` + Created int64 `json:"Created,omitempty" yaml:"Created,omitempty"` + Size int64 `json:"Size,omitempty" yaml:"Size,omitempty"` + VirtualSize int64 `json:"VirtualSize,omitempty" yaml:"VirtualSize,omitempty"` + ParentID string `json:"ParentId,omitempty" yaml:"ParentId,omitempty"` + RepoDigests []string `json:"RepoDigests,omitempty" yaml:"RepoDigests,omitempty"` + Labels map[string]string `json:"Labels,omitempty" yaml:"Labels,omitempty"` +} + +// Image is the type representing a docker image and its various properties +type Image struct { + ID string `json:"Id" yaml:"Id"` + Parent string `json:"Parent,omitempty" yaml:"Parent,omitempty"` + Comment string `json:"Comment,omitempty" yaml:"Comment,omitempty"` + Created time.Time `json:"Created,omitempty" yaml:"Created,omitempty"` + Container string `json:"Container,omitempty" yaml:"Container,omitempty"` + ContainerConfig Config `json:"ContainerConfig,omitempty" yaml:"ContainerConfig,omitempty"` + DockerVersion string `json:"DockerVersion,omitempty" yaml:"DockerVersion,omitempty"` + Author string `json:"Author,omitempty" yaml:"Author,omitempty"` + Config *Config `json:"Config,omitempty" yaml:"Config,omitempty"` + Architecture string `json:"Architecture,omitempty" yaml:"Architecture,omitempty"` + Size int64 `json:"Size,omitempty" yaml:"Size,omitempty"` + VirtualSize int64 `json:"VirtualSize,omitempty" yaml:"VirtualSize,omitempty"` +} + +// ImagePre012 serves the same purpose as the Image type except that it is for +// earlier versions of the Docker API (pre-012 to be specific) +type ImagePre012 struct { + ID string `json:"id"` + Parent string `json:"parent,omitempty"` + Comment string `json:"comment,omitempty"` + Created time.Time `json:"created"` + Container string `json:"container,omitempty"` + ContainerConfig Config `json:"container_config,omitempty"` + DockerVersion string `json:"docker_version,omitempty"` + Author string `json:"author,omitempty"` + Config *Config `json:"config,omitempty"` + Architecture string `json:"architecture,omitempty"` + Size int64 `json:"size,omitempty"` +} + +var ( + // ErrNoSuchImage is the error returned when the image does not exist. + ErrNoSuchImage = errors.New("no such image") + + // ErrMissingRepo is the error returned when the remote repository is + // missing. + ErrMissingRepo = errors.New("missing remote repository e.g. 'github.com/user/repo'") + + // ErrMissingOutputStream is the error returned when no output stream + // is provided to some calls, like BuildImage. + ErrMissingOutputStream = errors.New("missing output stream") + + // ErrMultipleContexts is the error returned when both a ContextDir and + // InputStream are provided in BuildImageOptions + ErrMultipleContexts = errors.New("image build may not be provided BOTH context dir and input stream") + + // ErrMustSpecifyNames is the error rreturned when the Names field on + // ExportImagesOptions is nil or empty + ErrMustSpecifyNames = errors.New("must specify at least one name to export") +) + +// ListImagesOptions specify parameters to the ListImages function. +// +// See https://goo.gl/xBe1u3 for more details. +type ListImagesOptions struct { + All bool + Filters map[string][]string + Digests bool +} + +// ListImages returns the list of available images in the server. +// +// See https://goo.gl/xBe1u3 for more details. +func (c *Client) ListImages(opts ListImagesOptions) ([]APIImages, error) { + path := "/images/json?" + queryString(opts) + resp, err := c.do("GET", path, doOptions{}) + if err != nil { + return nil, err + } + defer resp.Body.Close() + var images []APIImages + if err := json.NewDecoder(resp.Body).Decode(&images); err != nil { + return nil, err + } + return images, nil +} + +// ImageHistory represent a layer in an image's history returned by the +// ImageHistory call. +type ImageHistory struct { + ID string `json:"Id" yaml:"Id"` + Tags []string `json:"Tags,omitempty" yaml:"Tags,omitempty"` + Created int64 `json:"Created,omitempty" yaml:"Created,omitempty"` + CreatedBy string `json:"CreatedBy,omitempty" yaml:"CreatedBy,omitempty"` + Size int64 `json:"Size,omitempty" yaml:"Size,omitempty"` +} + +// ImageHistory returns the history of the image by its name or ID. +// +// See https://goo.gl/8bnTId for more details. +func (c *Client) ImageHistory(name string) ([]ImageHistory, error) { + resp, err := c.do("GET", "/images/"+name+"/history", doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return nil, ErrNoSuchImage + } + return nil, err + } + defer resp.Body.Close() + var history []ImageHistory + if err := json.NewDecoder(resp.Body).Decode(&history); err != nil { + return nil, err + } + return history, nil +} + +// RemoveImage removes an image by its name or ID. +// +// See https://goo.gl/V3ZWnK for more details. +func (c *Client) RemoveImage(name string) error { + resp, err := c.do("DELETE", "/images/"+name, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return ErrNoSuchImage + } + return err + } + resp.Body.Close() + return nil +} + +// RemoveImageOptions present the set of options available for removing an image +// from a registry. +// +// See https://goo.gl/V3ZWnK for more details. +type RemoveImageOptions struct { + Force bool `qs:"force"` + NoPrune bool `qs:"noprune"` +} + +// RemoveImageExtended removes an image by its name or ID. +// Extra params can be passed, see RemoveImageOptions +// +// See https://goo.gl/V3ZWnK for more details. +func (c *Client) RemoveImageExtended(name string, opts RemoveImageOptions) error { + uri := fmt.Sprintf("/images/%s?%s", name, queryString(&opts)) + resp, err := c.do("DELETE", uri, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return ErrNoSuchImage + } + return err + } + resp.Body.Close() + return nil +} + +// InspectImage returns an image by its name or ID. +// +// See https://goo.gl/jHPcg6 for more details. +func (c *Client) InspectImage(name string) (*Image, error) { + resp, err := c.do("GET", "/images/"+name+"/json", doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return nil, ErrNoSuchImage + } + return nil, err + } + defer resp.Body.Close() + + var image Image + + // if the caller elected to skip checking the server's version, assume it's the latest + if c.SkipServerVersionCheck || c.expectedAPIVersion.GreaterThanOrEqualTo(apiVersion112) { + if err := json.NewDecoder(resp.Body).Decode(&image); err != nil { + return nil, err + } + } else { + var imagePre012 ImagePre012 + if err := json.NewDecoder(resp.Body).Decode(&imagePre012); err != nil { + return nil, err + } + + image.ID = imagePre012.ID + image.Parent = imagePre012.Parent + image.Comment = imagePre012.Comment + image.Created = imagePre012.Created + image.Container = imagePre012.Container + image.ContainerConfig = imagePre012.ContainerConfig + image.DockerVersion = imagePre012.DockerVersion + image.Author = imagePre012.Author + image.Config = imagePre012.Config + image.Architecture = imagePre012.Architecture + image.Size = imagePre012.Size + } + + return &image, nil +} + +// PushImageOptions represents options to use in the PushImage method. +// +// See https://goo.gl/zPtZaT for more details. +type PushImageOptions struct { + // Name of the image + Name string + + // Tag of the image + Tag string + + // Registry server to push the image + Registry string + + OutputStream io.Writer `qs:"-"` + RawJSONStream bool `qs:"-"` +} + +// PushImage pushes an image to a remote registry, logging progress to w. +// +// An empty instance of AuthConfiguration may be used for unauthenticated +// pushes. +// +// See https://goo.gl/zPtZaT for more details. +func (c *Client) PushImage(opts PushImageOptions, auth AuthConfiguration) error { + if opts.Name == "" { + return ErrNoSuchImage + } + headers, err := headersWithAuth(auth) + if err != nil { + return err + } + name := opts.Name + opts.Name = "" + path := "/images/" + name + "/push?" + queryString(&opts) + return c.stream("POST", path, streamOptions{ + setRawTerminal: true, + rawJSONStream: opts.RawJSONStream, + headers: headers, + stdout: opts.OutputStream, + }) +} + +// PullImageOptions present the set of options available for pulling an image +// from a registry. +// +// See https://goo.gl/iJkZjD for more details. +type PullImageOptions struct { + Repository string `qs:"fromImage"` + Registry string + Tag string + OutputStream io.Writer `qs:"-"` + RawJSONStream bool `qs:"-"` +} + +// PullImage pulls an image from a remote registry, logging progress to +// opts.OutputStream. +// +// See https://goo.gl/iJkZjD for more details. +func (c *Client) PullImage(opts PullImageOptions, auth AuthConfiguration) error { + if opts.Repository == "" { + return ErrNoSuchImage + } + + headers, err := headersWithAuth(auth) + if err != nil { + return err + } + return c.createImage(queryString(&opts), headers, nil, opts.OutputStream, opts.RawJSONStream) +} + +func (c *Client) createImage(qs string, headers map[string]string, in io.Reader, w io.Writer, rawJSONStream bool) error { + path := "/images/create?" + qs + return c.stream("POST", path, streamOptions{ + setRawTerminal: true, + rawJSONStream: rawJSONStream, + headers: headers, + in: in, + stdout: w, + }) +} + +// LoadImageOptions represents the options for LoadImage Docker API Call +// +// See https://goo.gl/JyClMX for more details. +type LoadImageOptions struct { + InputStream io.Reader +} + +// LoadImage imports a tarball docker image +// +// See https://goo.gl/JyClMX for more details. +func (c *Client) LoadImage(opts LoadImageOptions) error { + return c.stream("POST", "/images/load", streamOptions{ + setRawTerminal: true, + in: opts.InputStream, + }) +} + +// ExportImageOptions represent the options for ExportImage Docker API call. +// +// See https://goo.gl/le7vK8 for more details. +type ExportImageOptions struct { + Name string + OutputStream io.Writer +} + +// ExportImage exports an image (as a tar file) into the stream. +// +// See https://goo.gl/le7vK8 for more details. +func (c *Client) ExportImage(opts ExportImageOptions) error { + return c.stream("GET", fmt.Sprintf("/images/%s/get", opts.Name), streamOptions{ + setRawTerminal: true, + stdout: opts.OutputStream, + }) +} + +// ExportImagesOptions represent the options for ExportImages Docker API call +// +// See https://goo.gl/huC7HA for more details. +type ExportImagesOptions struct { + Names []string + OutputStream io.Writer `qs:"-"` +} + +// ExportImages exports one or more images (as a tar file) into the stream +// +// See https://goo.gl/huC7HA for more details. +func (c *Client) ExportImages(opts ExportImagesOptions) error { + if opts.Names == nil || len(opts.Names) == 0 { + return ErrMustSpecifyNames + } + return c.stream("GET", "/images/get?"+queryString(&opts), streamOptions{ + setRawTerminal: true, + stdout: opts.OutputStream, + }) +} + +// ImportImageOptions present the set of informations available for importing +// an image from a source file or the stdin. +// +// See https://goo.gl/iJkZjD for more details. +type ImportImageOptions struct { + Repository string `qs:"repo"` + Source string `qs:"fromSrc"` + Tag string `qs:"tag"` + + InputStream io.Reader `qs:"-"` + OutputStream io.Writer `qs:"-"` + RawJSONStream bool `qs:"-"` +} + +// ImportImage imports an image from a url, a file or stdin +// +// See https://goo.gl/iJkZjD for more details. +func (c *Client) ImportImage(opts ImportImageOptions) error { + if opts.Repository == "" { + return ErrNoSuchImage + } + if opts.Source != "-" { + opts.InputStream = nil + } + if opts.Source != "-" && !isURL(opts.Source) { + f, err := os.Open(opts.Source) + if err != nil { + return err + } + opts.InputStream = f + opts.Source = "-" + } + return c.createImage(queryString(&opts), nil, opts.InputStream, opts.OutputStream, opts.RawJSONStream) +} + +// BuildImageOptions present the set of informations available for building an +// image from a tarfile with a Dockerfile in it. +// +// For more details about the Docker building process, see +// http://goo.gl/tlPXPu. +type BuildImageOptions struct { + Name string `qs:"t"` + Dockerfile string `qs:"dockerfile"` + NoCache bool `qs:"nocache"` + SuppressOutput bool `qs:"q"` + Pull bool `qs:"pull"` + RmTmpContainer bool `qs:"rm"` + ForceRmTmpContainer bool `qs:"forcerm"` + Memory int64 `qs:"memory"` + Memswap int64 `qs:"memswap"` + CPUShares int64 `qs:"cpushares"` + CPUSetCPUs string `qs:"cpusetcpus"` + InputStream io.Reader `qs:"-"` + OutputStream io.Writer `qs:"-"` + RawJSONStream bool `qs:"-"` + Remote string `qs:"remote"` + Auth AuthConfiguration `qs:"-"` // for older docker X-Registry-Auth header + AuthConfigs AuthConfigurations `qs:"-"` // for newer docker X-Registry-Config header + ContextDir string `qs:"-"` + Ulimits []ULimit `qs:"-"` +} + +// BuildImage builds an image from a tarball's url or a Dockerfile in the input +// stream. +// +// See https://goo.gl/xySxCe for more details. +func (c *Client) BuildImage(opts BuildImageOptions) error { + if opts.OutputStream == nil { + return ErrMissingOutputStream + } + headers, err := headersWithAuth(opts.Auth, c.versionedAuthConfigs(opts.AuthConfigs)) + if err != nil { + return err + } + + if opts.Remote != "" && opts.Name == "" { + opts.Name = opts.Remote + } + if opts.InputStream != nil || opts.ContextDir != "" { + headers["Content-Type"] = "application/tar" + } else if opts.Remote == "" { + return ErrMissingRepo + } + if opts.ContextDir != "" { + if opts.InputStream != nil { + return ErrMultipleContexts + } + var err error + if opts.InputStream, err = createTarStream(opts.ContextDir, opts.Dockerfile); err != nil { + return err + } + } + + qs := queryString(&opts) + if len(opts.Ulimits) > 0 { + if b, err := json.Marshal(opts.Ulimits); err == nil { + item := url.Values(map[string][]string{}) + item.Add("ulimits", string(b)) + qs = fmt.Sprintf("%s&%s", qs, item.Encode()) + } + } + + return c.stream("POST", fmt.Sprintf("/build?%s", qs), streamOptions{ + setRawTerminal: true, + rawJSONStream: opts.RawJSONStream, + headers: headers, + in: opts.InputStream, + stdout: opts.OutputStream, + }) +} + +func (c *Client) versionedAuthConfigs(authConfigs AuthConfigurations) interface{} { + if c.serverAPIVersion == nil { + c.checkAPIVersion() + } + if c.serverAPIVersion != nil && c.serverAPIVersion.GreaterThanOrEqualTo(apiVersion119) { + return AuthConfigurations119(authConfigs.Configs) + } + return authConfigs +} + +// TagImageOptions present the set of options to tag an image. +// +// See https://goo.gl/98ZzkU for more details. +type TagImageOptions struct { + Repo string + Tag string + Force bool +} + +// TagImage adds a tag to the image identified by the given name. +// +// See https://goo.gl/98ZzkU for more details. +func (c *Client) TagImage(name string, opts TagImageOptions) error { + if name == "" { + return ErrNoSuchImage + } + resp, err := c.do("POST", fmt.Sprintf("/images/"+name+"/tag?%s", + queryString(&opts)), doOptions{}) + + if err != nil { + return err + } + + defer resp.Body.Close() + + if resp.StatusCode == http.StatusNotFound { + return ErrNoSuchImage + } + + return err +} + +func isURL(u string) bool { + p, err := url.Parse(u) + if err != nil { + return false + } + return p.Scheme == "http" || p.Scheme == "https" +} + +func headersWithAuth(auths ...interface{}) (map[string]string, error) { + var headers = make(map[string]string) + + for _, auth := range auths { + switch auth.(type) { + case AuthConfiguration: + var buf bytes.Buffer + if err := json.NewEncoder(&buf).Encode(auth); err != nil { + return nil, err + } + headers["X-Registry-Auth"] = base64.URLEncoding.EncodeToString(buf.Bytes()) + case AuthConfigurations, AuthConfigurations119: + var buf bytes.Buffer + if err := json.NewEncoder(&buf).Encode(auth); err != nil { + return nil, err + } + headers["X-Registry-Config"] = base64.URLEncoding.EncodeToString(buf.Bytes()) + } + } + + return headers, nil +} + +// APIImageSearch reflect the result of a search on the Docker Hub. +// +// See https://goo.gl/AYjyrF for more details. +type APIImageSearch struct { + Description string `json:"description,omitempty" yaml:"description,omitempty"` + IsOfficial bool `json:"is_official,omitempty" yaml:"is_official,omitempty"` + IsAutomated bool `json:"is_automated,omitempty" yaml:"is_automated,omitempty"` + Name string `json:"name,omitempty" yaml:"name,omitempty"` + StarCount int `json:"star_count,omitempty" yaml:"star_count,omitempty"` +} + +// SearchImages search the docker hub with a specific given term. +// +// See https://goo.gl/AYjyrF for more details. +func (c *Client) SearchImages(term string) ([]APIImageSearch, error) { + resp, err := c.do("GET", "/images/search?term="+term, doOptions{}) + defer resp.Body.Close() + if err != nil { + return nil, err + } + var searchResult []APIImageSearch + if err := json.NewDecoder(resp.Body).Decode(&searchResult); err != nil { + return nil, err + } + return searchResult, nil +} + +// SearchImagesEx search the docker hub with a specific given term and authentication. +// +// See https://goo.gl/AYjyrF for more details. +func (c *Client) SearchImagesEx(term string, auth AuthConfiguration) ([]APIImageSearch, error) { + headers, err := headersWithAuth(auth) + if err != nil { + return nil, err + } + + resp, err := c.do("GET", "/images/search?term="+term, doOptions{ + headers: headers, + }) + if err != nil { + return nil, err + } + + defer resp.Body.Close() + + var searchResult []APIImageSearch + if err := json.NewDecoder(resp.Body).Decode(&searchResult); err != nil { + return nil, err + } + + return searchResult, nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/misc.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/misc.go new file mode 100644 index 0000000..34c9653 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/misc.go @@ -0,0 +1,57 @@ +// Copyright 2015 go-dockerclient authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package docker + +import "strings" + +// Version returns version information about the docker server. +// +// See https://goo.gl/ND9R8L for more details. +func (c *Client) Version() (*Env, error) { + resp, err := c.do("GET", "/version", doOptions{}) + if err != nil { + return nil, err + } + defer resp.Body.Close() + var env Env + if err := env.Decode(resp.Body); err != nil { + return nil, err + } + return &env, nil +} + +// Info returns system-wide information about the Docker server. +// +// See https://goo.gl/ElTHi2 for more details. +func (c *Client) Info() (*Env, error) { + resp, err := c.do("GET", "/info", doOptions{}) + if err != nil { + return nil, err + } + defer resp.Body.Close() + var info Env + if err := info.Decode(resp.Body); err != nil { + return nil, err + } + return &info, nil +} + +// ParseRepositoryTag gets the name of the repository and returns it splitted +// in two parts: the repository and the tag. +// +// Some examples: +// +// localhost.localdomain:5000/samalba/hipache:latest -> localhost.localdomain:5000/samalba/hipache, latest +// localhost.localdomain:5000/samalba/hipache -> localhost.localdomain:5000/samalba/hipache, "" +func ParseRepositoryTag(repoTag string) (repository string, tag string) { + n := strings.LastIndex(repoTag, ":") + if n < 0 { + return repoTag, "" + } + if tag := repoTag[n+1:]; !strings.Contains(tag, "/") { + return repoTag[:n], tag + } + return repoTag, "" +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/network.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/network.go new file mode 100644 index 0000000..8fa7091 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/network.go @@ -0,0 +1,143 @@ +// Copyright 2015 go-dockerclient authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package docker + +import ( + "encoding/json" + "errors" + "fmt" + "net/http" +) + +// ErrNetworkAlreadyExists is the error returned by CreateNetwork when the +// network already exists. +var ErrNetworkAlreadyExists = errors.New("network already exists") + +// Network represents a network. +// +// See https://goo.gl/FDkCdQ for more details. +type Network struct { + Name string `json:"name"` + ID string `json:"id"` + Type string `json:"type"` + Endpoints []*Endpoint `json:"endpoints"` +} + +// Endpoint represents an endpoint. +// +// See https://goo.gl/FDkCdQ for more details. +type Endpoint struct { + Name string `json:"name"` + ID string `json:"id"` + Network string `json:"network"` +} + +// ListNetworks returns all networks. +// +// See https://goo.gl/4hCNtZ for more details. +func (c *Client) ListNetworks() ([]Network, error) { + resp, err := c.do("GET", "/networks", doOptions{}) + if err != nil { + return nil, err + } + defer resp.Body.Close() + var networks []Network + if err := json.NewDecoder(resp.Body).Decode(&networks); err != nil { + return nil, err + } + return networks, nil +} + +// NetworkInfo returns information about a network by its ID. +// +// See https://goo.gl/4hCNtZ for more details. +func (c *Client) NetworkInfo(id string) (*Network, error) { + path := "/networks/" + id + resp, err := c.do("GET", path, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return nil, &NoSuchNetwork{ID: id} + } + return nil, err + } + defer resp.Body.Close() + var network Network + if err := json.NewDecoder(resp.Body).Decode(&network); err != nil { + return nil, err + } + return &network, nil +} + +// CreateNetworkOptions specify parameters to the CreateNetwork function and +// (for now) is the expected body of the "create network" http request message +// +// See https://goo.gl/FDkCdQ for more details. +type CreateNetworkOptions struct { + Name string `json:"name"` + NetworkType string `json:"network_type"` + Options map[string]interface{} `json:"options"` +} + +// CreateNetwork creates a new network, returning the network instance, +// or an error in case of failure. +// +// See https://goo.gl/FDkCdQ for more details. +func (c *Client) CreateNetwork(opts CreateNetworkOptions) (*Network, error) { + resp, err := c.do( + "POST", + "/networks", + doOptions{ + data: opts, + }, + ) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusConflict { + return nil, ErrNetworkAlreadyExists + } + return nil, err + } + defer resp.Body.Close() + + type createNetworkResponse struct { + ID string + } + var ( + network Network + cnr createNetworkResponse + ) + if err := json.NewDecoder(resp.Body).Decode(&cnr); err != nil { + return nil, err + } + + network.Name = opts.Name + network.ID = cnr.ID + network.Type = opts.NetworkType + + return &network, nil +} + +// RemoveNetwork removes a network or an error in case of failure. +// +// See https://goo.gl/FDkCdQ for more details. +func (c *Client) RemoveNetwork(id string) error { + resp, err := c.do("DELETE", "/networks/"+id, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return &NoSuchNetwork{ID: id} + } + return err + } + resp.Body.Close() + return nil +} + +// NoSuchNetwork is the error returned when a given network does not exist. +type NoSuchNetwork struct { + ID string +} + +func (err *NoSuchNetwork) Error() string { + return fmt.Sprintf("No such network: %s", err.ID) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/signal.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/signal.go new file mode 100644 index 0000000..16aa003 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/signal.go @@ -0,0 +1,49 @@ +// Copyright 2014 go-dockerclient authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package docker + +// Signal represents a signal that can be send to the container on +// KillContainer call. +type Signal int + +// These values represent all signals available on Linux, where containers will +// be running. +const ( + SIGABRT = Signal(0x6) + SIGALRM = Signal(0xe) + SIGBUS = Signal(0x7) + SIGCHLD = Signal(0x11) + SIGCLD = Signal(0x11) + SIGCONT = Signal(0x12) + SIGFPE = Signal(0x8) + SIGHUP = Signal(0x1) + SIGILL = Signal(0x4) + SIGINT = Signal(0x2) + SIGIO = Signal(0x1d) + SIGIOT = Signal(0x6) + SIGKILL = Signal(0x9) + SIGPIPE = Signal(0xd) + SIGPOLL = Signal(0x1d) + SIGPROF = Signal(0x1b) + SIGPWR = Signal(0x1e) + SIGQUIT = Signal(0x3) + SIGSEGV = Signal(0xb) + SIGSTKFLT = Signal(0x10) + SIGSTOP = Signal(0x13) + SIGSYS = Signal(0x1f) + SIGTERM = Signal(0xf) + SIGTRAP = Signal(0x5) + SIGTSTP = Signal(0x14) + SIGTTIN = Signal(0x15) + SIGTTOU = Signal(0x16) + SIGUNUSED = Signal(0x1f) + SIGURG = Signal(0x17) + SIGUSR1 = Signal(0xa) + SIGUSR2 = Signal(0xc) + SIGVTALRM = Signal(0x1a) + SIGWINCH = Signal(0x1c) + SIGXCPU = Signal(0x18) + SIGXFSZ = Signal(0x19) +) diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/tar.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/tar.go new file mode 100644 index 0000000..48042cb --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/tar.go @@ -0,0 +1,117 @@ +// Copyright 2015 go-dockerclient authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package docker + +import ( + "fmt" + "io" + "io/ioutil" + "os" + "path" + "path/filepath" + "strings" + + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/archive" + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/fileutils" +) + +func createTarStream(srcPath, dockerfilePath string) (io.ReadCloser, error) { + excludes, err := parseDockerignore(srcPath) + if err != nil { + return nil, err + } + + includes := []string{"."} + + // If .dockerignore mentions .dockerignore or the Dockerfile + // then make sure we send both files over to the daemon + // because Dockerfile is, obviously, needed no matter what, and + // .dockerignore is needed to know if either one needs to be + // removed. The deamon will remove them for us, if needed, after it + // parses the Dockerfile. + // + // https://github.com/docker/docker/issues/8330 + // + forceIncludeFiles := []string{".dockerignore", dockerfilePath} + + for _, includeFile := range forceIncludeFiles { + if includeFile == "" { + continue + } + keepThem, err := fileutils.Matches(includeFile, excludes) + if err != nil { + return nil, fmt.Errorf("cannot match .dockerfile: '%s', error: %s", includeFile, err) + } + if keepThem { + includes = append(includes, includeFile) + } + } + + if err := validateContextDirectory(srcPath, excludes); err != nil { + return nil, err + } + tarOpts := &archive.TarOptions{ + ExcludePatterns: excludes, + IncludeFiles: includes, + Compression: archive.Uncompressed, + NoLchown: true, + } + return archive.TarWithOptions(srcPath, tarOpts) +} + +// validateContextDirectory checks if all the contents of the directory +// can be read and returns an error if some files can't be read. +// Symlinks which point to non-existing files don't trigger an error +func validateContextDirectory(srcPath string, excludes []string) error { + return filepath.Walk(filepath.Join(srcPath, "."), func(filePath string, f os.FileInfo, err error) error { + // skip this directory/file if it's not in the path, it won't get added to the context + if relFilePath, err := filepath.Rel(srcPath, filePath); err != nil { + return err + } else if skip, err := fileutils.Matches(relFilePath, excludes); err != nil { + return err + } else if skip { + if f.IsDir() { + return filepath.SkipDir + } + return nil + } + + if err != nil { + if os.IsPermission(err) { + return fmt.Errorf("can't stat '%s'", filePath) + } + if os.IsNotExist(err) { + return nil + } + return err + } + + // skip checking if symlinks point to non-existing files, such symlinks can be useful + // also skip named pipes, because they hanging on open + if f.Mode()&(os.ModeSymlink|os.ModeNamedPipe) != 0 { + return nil + } + + if !f.IsDir() { + currentFile, err := os.Open(filePath) + if err != nil && os.IsPermission(err) { + return fmt.Errorf("no permission to read from '%s'", filePath) + } + currentFile.Close() + } + return nil + }) +} + +func parseDockerignore(root string) ([]string, error) { + var excludes []string + ignore, err := ioutil.ReadFile(path.Join(root, ".dockerignore")) + if err != nil && !os.IsNotExist(err) { + return excludes, fmt.Errorf("error reading .dockerignore: '%s'", err) + } + excludes = strings.Split(string(ignore), "\n") + + return excludes, nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/testing/data/.dockerignore b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/testing/data/.dockerignore new file mode 100644 index 0000000..027e8c2 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/testing/data/.dockerignore @@ -0,0 +1,3 @@ +container.tar +dockerfile.tar +foofile diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/testing/data/Dockerfile b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/testing/data/Dockerfile new file mode 100644 index 0000000..0948dcf --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/testing/data/Dockerfile @@ -0,0 +1,15 @@ +# this file describes how to build tsuru python image +# to run it: +# 1- install docker +# 2- run: $ docker build -t tsuru/python https://raw.github.com/tsuru/basebuilder/master/python/Dockerfile + +from base:ubuntu-quantal +run apt-get install wget -y --force-yes +run wget http://github.com/tsuru/basebuilder/tarball/master -O basebuilder.tar.gz --no-check-certificate +run mkdir /var/lib/tsuru +run tar -xvf basebuilder.tar.gz -C /var/lib/tsuru --strip 1 +run cp /var/lib/tsuru/python/deploy /var/lib/tsuru +run cp /var/lib/tsuru/base/restart /var/lib/tsuru +run cp /var/lib/tsuru/base/start /var/lib/tsuru +run /var/lib/tsuru/base/install +run /var/lib/tsuru/base/setup diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/testing/data/barfile b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/testing/data/barfile new file mode 100644 index 0000000..e69de29 diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/testing/data/ca.pem b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/testing/data/ca.pem new file mode 100644 index 0000000..8e38bba --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/testing/data/ca.pem @@ -0,0 +1,18 @@ +-----BEGIN CERTIFICATE----- +MIIC1TCCAb+gAwIBAgIQJ9MsNxrUxumNbAytGi3GEDALBgkqhkiG9w0BAQswFjEU +MBIGA1UEChMLQm9vdDJEb2NrZXIwHhcNMTQxMDE2MjAyMTM4WhcNMTcwOTMwMjAy +MTM4WjAWMRQwEgYDVQQKEwtCb290MkRvY2tlcjCCASIwDQYJKoZIhvcNAQEBBQAD +ggEPADCCAQoCggEBALpFCSARjG+5yXoqr7UMzuE0df7RRZfeRZI06lJ02ZqV4Iii +rgL7ML9yPxX50NbLnjiilSDTUhnyocYFItokzUzz8qpX/nlYhuN2Iqwh4d0aWS8z +f5y248F+H1z+HY2W8NPl/6DVlVwYaNW1/k+RPMlHS0INLR6j+3Ievew7RNE0NnM2 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All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package testing provides a fake implementation of the Docker API, useful for +// testing purpose. +package testing + +import ( + "archive/tar" + "crypto/rand" + "encoding/json" + "errors" + "fmt" + "io/ioutil" + mathrand "math/rand" + "net" + "net/http" + "regexp" + "strconv" + "strings" + "sync" + "time" + + "github.com/fsouza/go-dockerclient" + "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/stdcopy" + "github.com/fsouza/go-dockerclient/external/github.com/gorilla/mux" +) + +var nameRegexp = regexp.MustCompile(`^[a-zA-Z0-9][a-zA-Z0-9_.-]+$`) + +// DockerServer represents a programmable, concurrent (not much), HTTP server +// implementing a fake version of the Docker remote API. +// +// It can used in standalone mode, listening for connections or as an arbitrary +// HTTP handler. +// +// For more details on the remote API, check http://goo.gl/G3plxW. +type DockerServer struct { + containers []*docker.Container + execs []*docker.ExecInspect + execMut sync.RWMutex + cMut sync.RWMutex + images []docker.Image + iMut sync.RWMutex + imgIDs map[string]string + networks []*docker.Network + netMut sync.RWMutex + listener net.Listener + mux *mux.Router + hook func(*http.Request) + failures map[string]string + multiFailures []map[string]string + execCallbacks map[string]func() + statsCallbacks map[string]func(string) docker.Stats + customHandlers map[string]http.Handler + handlerMutex sync.RWMutex + cChan chan<- *docker.Container +} + +// NewServer returns a new instance of the fake server, in standalone mode. Use +// the method URL to get the URL of the server. +// +// It receives the bind address (use 127.0.0.1:0 for getting an available port +// on the host), a channel of containers and a hook function, that will be +// called on every request. +// +// The fake server will send containers in the channel whenever the container +// changes its state, via the HTTP API (i.e.: create, start and stop). This +// channel may be nil, which means that the server won't notify on state +// changes. +func NewServer(bind string, containerChan chan<- *docker.Container, hook func(*http.Request)) (*DockerServer, error) { + listener, err := net.Listen("tcp", bind) + if err != nil { + return nil, err + } + server := DockerServer{ + listener: listener, + imgIDs: make(map[string]string), + hook: hook, + failures: make(map[string]string), + execCallbacks: make(map[string]func()), + statsCallbacks: make(map[string]func(string) docker.Stats), + customHandlers: make(map[string]http.Handler), + cChan: containerChan, + } + server.buildMuxer() + go http.Serve(listener, &server) + return &server, nil +} + +func (s *DockerServer) notify(container *docker.Container) { + if s.cChan != nil { + s.cChan <- container + } +} + +func (s *DockerServer) buildMuxer() { + s.mux = mux.NewRouter() + s.mux.Path("/commit").Methods("POST").HandlerFunc(s.handlerWrapper(s.commitContainer)) + s.mux.Path("/containers/json").Methods("GET").HandlerFunc(s.handlerWrapper(s.listContainers)) + s.mux.Path("/containers/create").Methods("POST").HandlerFunc(s.handlerWrapper(s.createContainer)) + s.mux.Path("/containers/{id:.*}/json").Methods("GET").HandlerFunc(s.handlerWrapper(s.inspectContainer)) + s.mux.Path("/containers/{id:.*}/rename").Methods("POST").HandlerFunc(s.handlerWrapper(s.renameContainer)) + s.mux.Path("/containers/{id:.*}/top").Methods("GET").HandlerFunc(s.handlerWrapper(s.topContainer)) + s.mux.Path("/containers/{id:.*}/start").Methods("POST").HandlerFunc(s.handlerWrapper(s.startContainer)) + s.mux.Path("/containers/{id:.*}/kill").Methods("POST").HandlerFunc(s.handlerWrapper(s.stopContainer)) + s.mux.Path("/containers/{id:.*}/stop").Methods("POST").HandlerFunc(s.handlerWrapper(s.stopContainer)) + s.mux.Path("/containers/{id:.*}/pause").Methods("POST").HandlerFunc(s.handlerWrapper(s.pauseContainer)) + s.mux.Path("/containers/{id:.*}/unpause").Methods("POST").HandlerFunc(s.handlerWrapper(s.unpauseContainer)) + s.mux.Path("/containers/{id:.*}/wait").Methods("POST").HandlerFunc(s.handlerWrapper(s.waitContainer)) + s.mux.Path("/containers/{id:.*}/attach").Methods("POST").HandlerFunc(s.handlerWrapper(s.attachContainer)) + s.mux.Path("/containers/{id:.*}").Methods("DELETE").HandlerFunc(s.handlerWrapper(s.removeContainer)) + s.mux.Path("/containers/{id:.*}/exec").Methods("POST").HandlerFunc(s.handlerWrapper(s.createExecContainer)) + s.mux.Path("/containers/{id:.*}/stats").Methods("GET").HandlerFunc(s.handlerWrapper(s.statsContainer)) + s.mux.Path("/exec/{id:.*}/resize").Methods("POST").HandlerFunc(s.handlerWrapper(s.resizeExecContainer)) + s.mux.Path("/exec/{id:.*}/start").Methods("POST").HandlerFunc(s.handlerWrapper(s.startExecContainer)) + s.mux.Path("/exec/{id:.*}/json").Methods("GET").HandlerFunc(s.handlerWrapper(s.inspectExecContainer)) + s.mux.Path("/images/create").Methods("POST").HandlerFunc(s.handlerWrapper(s.pullImage)) + s.mux.Path("/build").Methods("POST").HandlerFunc(s.handlerWrapper(s.buildImage)) + s.mux.Path("/images/json").Methods("GET").HandlerFunc(s.handlerWrapper(s.listImages)) + s.mux.Path("/images/{id:.*}").Methods("DELETE").HandlerFunc(s.handlerWrapper(s.removeImage)) + s.mux.Path("/images/{name:.*}/json").Methods("GET").HandlerFunc(s.handlerWrapper(s.inspectImage)) + s.mux.Path("/images/{name:.*}/push").Methods("POST").HandlerFunc(s.handlerWrapper(s.pushImage)) + s.mux.Path("/images/{name:.*}/tag").Methods("POST").HandlerFunc(s.handlerWrapper(s.tagImage)) + s.mux.Path("/events").Methods("GET").HandlerFunc(s.listEvents) + s.mux.Path("/_ping").Methods("GET").HandlerFunc(s.handlerWrapper(s.pingDocker)) + s.mux.Path("/images/load").Methods("POST").HandlerFunc(s.handlerWrapper(s.loadImage)) + s.mux.Path("/images/{id:.*}/get").Methods("GET").HandlerFunc(s.handlerWrapper(s.getImage)) + s.mux.Path("/networks").Methods("GET").HandlerFunc(s.handlerWrapper(s.listNetworks)) + s.mux.Path("/networks/{id:.*}").Methods("GET").HandlerFunc(s.handlerWrapper(s.networkInfo)) + s.mux.Path("/networks").Methods("POST").HandlerFunc(s.handlerWrapper(s.createNetwork)) +} + +// SetHook changes the hook function used by the server. +// +// The hook function is a function called on every request. +func (s *DockerServer) SetHook(hook func(*http.Request)) { + s.hook = hook +} + +// PrepareExec adds a callback to a container exec in the fake server. +// +// This function will be called whenever the given exec id is started, and the +// given exec id will remain in the "Running" start while the function is +// running, so it's useful for emulating an exec that runs for two seconds, for +// example: +// +// opts := docker.CreateExecOptions{ +// AttachStdin: true, +// AttachStdout: true, +// AttachStderr: true, +// Tty: true, +// Cmd: []string{"/bin/bash", "-l"}, +// } +// // Client points to a fake server. +// exec, err := client.CreateExec(opts) +// // handle error +// server.PrepareExec(exec.ID, func() {time.Sleep(2 * time.Second)}) +// err = client.StartExec(exec.ID, docker.StartExecOptions{Tty: true}) // will block for 2 seconds +// // handle error +func (s *DockerServer) PrepareExec(id string, callback func()) { + s.execCallbacks[id] = callback +} + +// PrepareStats adds a callback that will be called for each container stats +// call. +// +// This callback function will be called multiple times if stream is set to +// true when stats is called. +func (s *DockerServer) PrepareStats(id string, callback func(string) docker.Stats) { + s.statsCallbacks[id] = callback +} + +// PrepareFailure adds a new expected failure based on a URL regexp it receives +// an id for the failure. +func (s *DockerServer) PrepareFailure(id string, urlRegexp string) { + s.failures[id] = urlRegexp +} + +// PrepareMultiFailures enqueues a new expected failure based on a URL regexp +// it receives an id for the failure. +func (s *DockerServer) PrepareMultiFailures(id string, urlRegexp string) { + s.multiFailures = append(s.multiFailures, map[string]string{"error": id, "url": urlRegexp}) +} + +// ResetFailure removes an expected failure identified by the given id. +func (s *DockerServer) ResetFailure(id string) { + delete(s.failures, id) +} + +// ResetMultiFailures removes all enqueued failures. +func (s *DockerServer) ResetMultiFailures() { + s.multiFailures = []map[string]string{} +} + +// CustomHandler registers a custom handler for a specific path. +// +// For example: +// +// server.CustomHandler("/containers/json", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { +// http.Error(w, "Something wrong is not right", http.StatusInternalServerError) +// })) +func (s *DockerServer) CustomHandler(path string, handler http.Handler) { + s.handlerMutex.Lock() + s.customHandlers[path] = handler + s.handlerMutex.Unlock() +} + +// MutateContainer changes the state of a container, returning an error if the +// given id does not match to any container "running" in the server. +func (s *DockerServer) MutateContainer(id string, state docker.State) error { + for _, container := range s.containers { + if container.ID == id { + container.State = state + return nil + } + } + return errors.New("container not found") +} + +// Stop stops the server. +func (s *DockerServer) Stop() { + if s.listener != nil { + s.listener.Close() + } +} + +// URL returns the HTTP URL of the server. +func (s *DockerServer) URL() string { + if s.listener == nil { + return "" + } + return "http://" + s.listener.Addr().String() + "/" +} + +// ServeHTTP handles HTTP requests sent to the server. +func (s *DockerServer) ServeHTTP(w http.ResponseWriter, r *http.Request) { + s.handlerMutex.RLock() + defer s.handlerMutex.RUnlock() + for re, handler := range s.customHandlers { + if m, _ := regexp.MatchString(re, r.URL.Path); m { + handler.ServeHTTP(w, r) + return + } + } + s.mux.ServeHTTP(w, r) + if s.hook != nil { + s.hook(r) + } +} + +// DefaultHandler returns default http.Handler mux, it allows customHandlers to +// call the default behavior if wanted. +func (s *DockerServer) DefaultHandler() http.Handler { + return s.mux +} + +func (s *DockerServer) handlerWrapper(f func(http.ResponseWriter, *http.Request)) func(http.ResponseWriter, *http.Request) { + return func(w http.ResponseWriter, r *http.Request) { + for errorID, urlRegexp := range s.failures { + matched, err := regexp.MatchString(urlRegexp, r.URL.Path) + if err != nil { + http.Error(w, err.Error(), http.StatusBadRequest) + return + } + if !matched { + continue + } + http.Error(w, errorID, http.StatusBadRequest) + return + } + for i, failure := range s.multiFailures { + matched, err := regexp.MatchString(failure["url"], r.URL.Path) + if err != nil { + http.Error(w, err.Error(), http.StatusBadRequest) + return + } + if !matched { + continue + } + http.Error(w, failure["error"], http.StatusBadRequest) + s.multiFailures = append(s.multiFailures[:i], s.multiFailures[i+1:]...) + return + } + f(w, r) + } +} + +func (s *DockerServer) listContainers(w http.ResponseWriter, r *http.Request) { + all := r.URL.Query().Get("all") + s.cMut.RLock() + result := make([]docker.APIContainers, 0, len(s.containers)) + for _, container := range s.containers { + if all == "1" || container.State.Running { + result = append(result, docker.APIContainers{ + ID: container.ID, + Image: container.Image, + Command: fmt.Sprintf("%s %s", container.Path, strings.Join(container.Args, " ")), + Created: container.Created.Unix(), + Status: container.State.String(), + Ports: container.NetworkSettings.PortMappingAPI(), + Names: []string{fmt.Sprintf("/%s", container.Name)}, + }) + } + } + s.cMut.RUnlock() + w.Header().Set("Content-Type", "application/json") + w.WriteHeader(http.StatusOK) + json.NewEncoder(w).Encode(result) +} + +func (s *DockerServer) listImages(w http.ResponseWriter, r *http.Request) { + s.cMut.RLock() + result := make([]docker.APIImages, len(s.images)) + for i, image := range s.images { + result[i] = docker.APIImages{ + ID: image.ID, + Created: image.Created.Unix(), + } + for tag, id := range s.imgIDs { + if id == image.ID { + result[i].RepoTags = append(result[i].RepoTags, tag) + } + } + } + s.cMut.RUnlock() + w.Header().Set("Content-Type", "application/json") + w.WriteHeader(http.StatusOK) + json.NewEncoder(w).Encode(result) +} + +func (s *DockerServer) findImage(id string) (string, error) { + s.iMut.RLock() + defer s.iMut.RUnlock() + image, ok := s.imgIDs[id] + if ok { + return image, nil + } + image, _, err := s.findImageByID(id) + return image, err +} + +func (s *DockerServer) findImageByID(id string) (string, int, error) { + s.iMut.RLock() + defer s.iMut.RUnlock() + for i, image := range s.images { + if image.ID == id { + return image.ID, i, nil + } + } + return "", -1, errors.New("No such image") +} + +func (s *DockerServer) createContainer(w http.ResponseWriter, r *http.Request) { + var config struct { + *docker.Config + HostConfig *docker.HostConfig + } + defer r.Body.Close() + err := json.NewDecoder(r.Body).Decode(&config) + if err != nil { + http.Error(w, err.Error(), http.StatusBadRequest) + return + } + name := r.URL.Query().Get("name") + if name != "" && !nameRegexp.MatchString(name) { + http.Error(w, "Invalid container name", http.StatusInternalServerError) + return + } + if _, err := s.findImage(config.Image); err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + ports := map[docker.Port][]docker.PortBinding{} + for port := range config.ExposedPorts { + ports[port] = []docker.PortBinding{{ + HostIP: "0.0.0.0", + HostPort: strconv.Itoa(mathrand.Int() % 65536), + }} + } + + //the container may not have cmd when using a Dockerfile + var path string + var args []string + if len(config.Cmd) == 1 { + path = config.Cmd[0] + } else if len(config.Cmd) > 1 { + path = config.Cmd[0] + args = config.Cmd[1:] + } + + generatedID := s.generateID() + config.Config.Hostname = generatedID[:12] + container := docker.Container{ + Name: name, + ID: generatedID, + Created: time.Now(), + Path: path, + Args: args, + Config: config.Config, + HostConfig: config.HostConfig, + State: docker.State{ + Running: false, + Pid: mathrand.Int() % 50000, + ExitCode: 0, + StartedAt: time.Now(), + }, + Image: config.Image, + NetworkSettings: &docker.NetworkSettings{ + IPAddress: fmt.Sprintf("172.16.42.%d", mathrand.Int()%250+2), + IPPrefixLen: 24, + Gateway: "172.16.42.1", + Bridge: "docker0", + Ports: ports, + }, + } + s.cMut.Lock() + if container.Name != "" { + for _, c := range s.containers { + if c.Name == container.Name { + defer s.cMut.Unlock() + http.Error(w, "there's already a container with this name", http.StatusConflict) + return + } + } + } + s.containers = append(s.containers, &container) + s.cMut.Unlock() + w.WriteHeader(http.StatusCreated) + s.notify(&container) + var c = struct{ ID string }{ID: container.ID} + json.NewEncoder(w).Encode(c) +} + +func (s *DockerServer) generateID() string { + var buf [16]byte + rand.Read(buf[:]) + return fmt.Sprintf("%x", buf) +} + +func (s *DockerServer) renameContainer(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + container, index, err := s.findContainer(id) + if err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + copy := *container + copy.Name = r.URL.Query().Get("name") + s.cMut.Lock() + defer s.cMut.Unlock() + if s.containers[index].ID == copy.ID { + s.containers[index] = © + } + w.WriteHeader(http.StatusNoContent) +} + +func (s *DockerServer) inspectContainer(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + container, _, err := s.findContainer(id) + if err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + w.Header().Set("Content-Type", "application/json") + w.WriteHeader(http.StatusOK) + json.NewEncoder(w).Encode(container) +} + +func (s *DockerServer) statsContainer(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + _, _, err := s.findContainer(id) + if err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + stream, _ := strconv.ParseBool(r.URL.Query().Get("stream")) + callback := s.statsCallbacks[id] + w.Header().Set("Content-Type", "application/json") + w.WriteHeader(http.StatusOK) + encoder := json.NewEncoder(w) + for { + var stats docker.Stats + if callback != nil { + stats = callback(id) + } + encoder.Encode(stats) + if !stream { + break + } + } +} + +func (s *DockerServer) topContainer(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + container, _, err := s.findContainer(id) + if err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + if !container.State.Running { + w.WriteHeader(http.StatusInternalServerError) + fmt.Fprintf(w, "Container %s is not running", id) + return + } + w.Header().Set("Content-Type", "application/json") + w.WriteHeader(http.StatusOK) + result := docker.TopResult{ + Titles: []string{"UID", "PID", "PPID", "C", "STIME", "TTY", "TIME", "CMD"}, + Processes: [][]string{ + {"root", "7535", "7516", "0", "03:20", "?", "00:00:00", container.Path + " " + strings.Join(container.Args, " ")}, + }, + } + json.NewEncoder(w).Encode(result) +} + +func (s *DockerServer) startContainer(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + container, _, err := s.findContainer(id) + if err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + s.cMut.Lock() + defer s.cMut.Unlock() + defer r.Body.Close() + var hostConfig docker.HostConfig + err = json.NewDecoder(r.Body).Decode(&hostConfig) + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + return + } + container.HostConfig = &hostConfig + if container.State.Running { + http.Error(w, "", http.StatusNotModified) + return + } + container.State.Running = true + s.notify(container) +} + +func (s *DockerServer) stopContainer(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + container, _, err := s.findContainer(id) + if err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + s.cMut.Lock() + defer s.cMut.Unlock() + if !container.State.Running { + http.Error(w, "Container not running", http.StatusBadRequest) + return + } + w.WriteHeader(http.StatusNoContent) + container.State.Running = false + s.notify(container) +} + +func (s *DockerServer) pauseContainer(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + container, _, err := s.findContainer(id) + if err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + s.cMut.Lock() + defer s.cMut.Unlock() + if container.State.Paused { + http.Error(w, "Container already paused", http.StatusBadRequest) + return + } + w.WriteHeader(http.StatusNoContent) + container.State.Paused = true +} + +func (s *DockerServer) unpauseContainer(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + container, _, err := s.findContainer(id) + if err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + s.cMut.Lock() + defer s.cMut.Unlock() + if !container.State.Paused { + http.Error(w, "Container not paused", http.StatusBadRequest) + return + } + w.WriteHeader(http.StatusNoContent) + container.State.Paused = false +} + +func (s *DockerServer) attachContainer(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + container, _, err := s.findContainer(id) + if err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + hijacker, ok := w.(http.Hijacker) + if !ok { + http.Error(w, "cannot hijack connection", http.StatusInternalServerError) + return + } + w.Header().Set("Content-Type", "application/vnd.docker.raw-stream") + w.WriteHeader(http.StatusOK) + conn, _, err := hijacker.Hijack() + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + return + } + wg := sync.WaitGroup{} + if r.URL.Query().Get("stdin") == "1" { + wg.Add(1) + go func() { + ioutil.ReadAll(conn) + wg.Done() + }() + } + outStream := stdcopy.NewStdWriter(conn, stdcopy.Stdout) + if container.State.Running { + fmt.Fprintf(outStream, "Container is running\n") + } else { + fmt.Fprintf(outStream, "Container is not running\n") + } + fmt.Fprintln(outStream, "What happened?") + fmt.Fprintln(outStream, "Something happened") + wg.Wait() + if r.URL.Query().Get("stream") == "1" { + for { + time.Sleep(1e6) + s.cMut.RLock() + if !container.State.Running { + s.cMut.RUnlock() + break + } + s.cMut.RUnlock() + } + } + conn.Close() +} + +func (s *DockerServer) waitContainer(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + container, _, err := s.findContainer(id) + if err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + for { + time.Sleep(1e6) + s.cMut.RLock() + if !container.State.Running { + s.cMut.RUnlock() + break + } + s.cMut.RUnlock() + } + result := map[string]int{"StatusCode": container.State.ExitCode} + json.NewEncoder(w).Encode(result) +} + +func (s *DockerServer) removeContainer(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + force := r.URL.Query().Get("force") + _, index, err := s.findContainer(id) + if err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + if s.containers[index].State.Running && force != "1" { + msg := "Error: API error (406): Impossible to remove a running container, please stop it first" + http.Error(w, msg, http.StatusInternalServerError) + return + } + w.WriteHeader(http.StatusNoContent) + s.cMut.Lock() + defer s.cMut.Unlock() + s.containers[index] = s.containers[len(s.containers)-1] + s.containers = s.containers[:len(s.containers)-1] +} + +func (s *DockerServer) commitContainer(w http.ResponseWriter, r *http.Request) { + id := r.URL.Query().Get("container") + container, _, err := s.findContainer(id) + if err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + var config *docker.Config + runConfig := r.URL.Query().Get("run") + if runConfig != "" { + config = new(docker.Config) + err = json.Unmarshal([]byte(runConfig), config) + if err != nil { + http.Error(w, err.Error(), http.StatusBadRequest) + return + } + } + w.WriteHeader(http.StatusOK) + image := docker.Image{ + ID: "img-" + container.ID, + Parent: container.Image, + Container: container.ID, + Comment: r.URL.Query().Get("m"), + Author: r.URL.Query().Get("author"), + Config: config, + } + repository := r.URL.Query().Get("repo") + tag := r.URL.Query().Get("tag") + s.iMut.Lock() + s.images = append(s.images, image) + if repository != "" { + if tag != "" { + repository += ":" + tag + } + s.imgIDs[repository] = image.ID + } + s.iMut.Unlock() + fmt.Fprintf(w, `{"ID":%q}`, image.ID) +} + +func (s *DockerServer) findContainer(idOrName string) (*docker.Container, int, error) { + s.cMut.RLock() + defer s.cMut.RUnlock() + for i, container := range s.containers { + if container.ID == idOrName || container.Name == idOrName { + return container, i, nil + } + } + return nil, -1, errors.New("No such container") +} + +func (s *DockerServer) buildImage(w http.ResponseWriter, r *http.Request) { + if ct := r.Header.Get("Content-Type"); ct == "application/tar" { + gotDockerFile := false + tr := tar.NewReader(r.Body) + for { + header, err := tr.Next() + if err != nil { + break + } + if header.Name == "Dockerfile" { + gotDockerFile = true + } + } + if !gotDockerFile { + w.WriteHeader(http.StatusBadRequest) + w.Write([]byte("miss Dockerfile")) + return + } + } + //we did not use that Dockerfile to build image cause we are a fake Docker daemon + image := docker.Image{ + ID: s.generateID(), + Created: time.Now(), + } + + query := r.URL.Query() + repository := image.ID + if t := query.Get("t"); t != "" { + repository = t + } + s.iMut.Lock() + s.images = append(s.images, image) + s.imgIDs[repository] = image.ID + s.iMut.Unlock() + w.Write([]byte(fmt.Sprintf("Successfully built %s", image.ID))) +} + +func (s *DockerServer) pullImage(w http.ResponseWriter, r *http.Request) { + fromImageName := r.URL.Query().Get("fromImage") + tag := r.URL.Query().Get("tag") + image := docker.Image{ + ID: s.generateID(), + } + s.iMut.Lock() + s.images = append(s.images, image) + if fromImageName != "" { + if tag != "" { + fromImageName = fmt.Sprintf("%s:%s", fromImageName, tag) + } + s.imgIDs[fromImageName] = image.ID + } + s.iMut.Unlock() +} + +func (s *DockerServer) pushImage(w http.ResponseWriter, r *http.Request) { + name := mux.Vars(r)["name"] + tag := r.URL.Query().Get("tag") + if tag != "" { + name += ":" + tag + } + s.iMut.RLock() + if _, ok := s.imgIDs[name]; !ok { + s.iMut.RUnlock() + http.Error(w, "No such image", http.StatusNotFound) + return + } + s.iMut.RUnlock() + fmt.Fprintln(w, "Pushing...") + fmt.Fprintln(w, "Pushed") +} + +func (s *DockerServer) tagImage(w http.ResponseWriter, r *http.Request) { + name := mux.Vars(r)["name"] + s.iMut.RLock() + if _, ok := s.imgIDs[name]; !ok { + s.iMut.RUnlock() + http.Error(w, "No such image", http.StatusNotFound) + return + } + s.iMut.RUnlock() + s.iMut.Lock() + defer s.iMut.Unlock() + newRepo := r.URL.Query().Get("repo") + newTag := r.URL.Query().Get("tag") + if newTag != "" { + newRepo += ":" + newTag + } + s.imgIDs[newRepo] = s.imgIDs[name] + w.WriteHeader(http.StatusCreated) +} + +func (s *DockerServer) removeImage(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + s.iMut.RLock() + var tag string + if img, ok := s.imgIDs[id]; ok { + id, tag = img, id + } + var tags []string + for tag, taggedID := range s.imgIDs { + if taggedID == id { + tags = append(tags, tag) + } + } + s.iMut.RUnlock() + _, index, err := s.findImageByID(id) + if err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + w.WriteHeader(http.StatusNoContent) + s.iMut.Lock() + defer s.iMut.Unlock() + if len(tags) < 2 { + s.images[index] = s.images[len(s.images)-1] + s.images = s.images[:len(s.images)-1] + } + if tag != "" { + delete(s.imgIDs, tag) + } +} + +func (s *DockerServer) inspectImage(w http.ResponseWriter, r *http.Request) { + name := mux.Vars(r)["name"] + s.iMut.RLock() + defer s.iMut.RUnlock() + if id, ok := s.imgIDs[name]; ok { + for _, img := range s.images { + if img.ID == id { + w.Header().Set("Content-Type", "application/json") + w.WriteHeader(http.StatusOK) + json.NewEncoder(w).Encode(img) + return + } + } + } + http.Error(w, "not found", http.StatusNotFound) +} + +func (s *DockerServer) listEvents(w http.ResponseWriter, r *http.Request) { + w.Header().Set("Content-Type", "application/json") + var events [][]byte + count := mathrand.Intn(20) + for i := 0; i < count; i++ { + data, err := json.Marshal(s.generateEvent()) + if err != nil { + w.WriteHeader(http.StatusInternalServerError) + return + } + events = append(events, data) + } + w.WriteHeader(http.StatusOK) + for _, d := range events { + fmt.Fprintln(w, d) + time.Sleep(time.Duration(mathrand.Intn(200)) * time.Millisecond) + } +} + +func (s *DockerServer) pingDocker(w http.ResponseWriter, r *http.Request) { + w.WriteHeader(http.StatusOK) +} + +func (s *DockerServer) generateEvent() *docker.APIEvents { + var eventType string + switch mathrand.Intn(4) { + case 0: + eventType = "create" + case 1: + eventType = "start" + case 2: + eventType = "stop" + case 3: + eventType = "destroy" + } + return &docker.APIEvents{ + ID: s.generateID(), + Status: eventType, + From: "mybase:latest", + Time: time.Now().Unix(), + } +} + +func (s *DockerServer) loadImage(w http.ResponseWriter, r *http.Request) { + w.WriteHeader(http.StatusOK) +} + +func (s *DockerServer) getImage(w http.ResponseWriter, r *http.Request) { + w.WriteHeader(http.StatusOK) + w.Header().Set("Content-Type", "application/tar") +} + +func (s *DockerServer) createExecContainer(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + container, _, err := s.findContainer(id) + if err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + + execID := s.generateID() + container.ExecIDs = append(container.ExecIDs, execID) + + exec := docker.ExecInspect{ + ID: execID, + Container: *container, + } + + var params docker.CreateExecOptions + err = json.NewDecoder(r.Body).Decode(¶ms) + if err != nil { + http.Error(w, err.Error(), http.StatusInternalServerError) + return + } + if len(params.Cmd) > 0 { + exec.ProcessConfig.EntryPoint = params.Cmd[0] + if len(params.Cmd) > 1 { + exec.ProcessConfig.Arguments = params.Cmd[1:] + } + } + + exec.ProcessConfig.User = params.User + exec.ProcessConfig.Tty = params.Tty + + s.execMut.Lock() + s.execs = append(s.execs, &exec) + s.execMut.Unlock() + w.WriteHeader(http.StatusOK) + w.Header().Set("Content-Type", "application/json") + json.NewEncoder(w).Encode(map[string]string{"Id": exec.ID}) +} + +func (s *DockerServer) startExecContainer(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + if exec, err := s.getExec(id, false); err == nil { + s.execMut.Lock() + exec.Running = true + s.execMut.Unlock() + if callback, ok := s.execCallbacks[id]; ok { + callback() + delete(s.execCallbacks, id) + } else if callback, ok := s.execCallbacks["*"]; ok { + callback() + delete(s.execCallbacks, "*") + } + s.execMut.Lock() + exec.Running = false + s.execMut.Unlock() + w.WriteHeader(http.StatusOK) + return + } + w.WriteHeader(http.StatusNotFound) +} + +func (s *DockerServer) resizeExecContainer(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + if _, err := s.getExec(id, false); err == nil { + w.WriteHeader(http.StatusOK) + return + } + w.WriteHeader(http.StatusNotFound) +} + +func (s *DockerServer) inspectExecContainer(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + if exec, err := s.getExec(id, true); err == nil { + w.WriteHeader(http.StatusOK) + w.Header().Set("Content-Type", "application/json") + json.NewEncoder(w).Encode(exec) + return + } + w.WriteHeader(http.StatusNotFound) +} + +func (s *DockerServer) getExec(id string, copy bool) (*docker.ExecInspect, error) { + s.execMut.RLock() + defer s.execMut.RUnlock() + for _, exec := range s.execs { + if exec.ID == id { + if copy { + cp := *exec + exec = &cp + } + return exec, nil + } + } + return nil, errors.New("exec not found") +} + +func (s *DockerServer) findNetwork(idOrName string) (*docker.Network, int, error) { + s.netMut.RLock() + defer s.netMut.RUnlock() + for i, network := range s.networks { + if network.ID == idOrName || network.Name == idOrName { + return network, i, nil + } + } + return nil, -1, errors.New("No such network") +} + +func (s *DockerServer) listNetworks(w http.ResponseWriter, r *http.Request) { + s.netMut.RLock() + result := make([]docker.Network, 0, len(s.networks)) + for _, network := range s.networks { + result = append(result, *network) + } + s.netMut.RUnlock() + w.Header().Set("Content-Type", "application/json") + w.WriteHeader(http.StatusOK) + json.NewEncoder(w).Encode(result) +} + +func (s *DockerServer) networkInfo(w http.ResponseWriter, r *http.Request) { + id := mux.Vars(r)["id"] + network, _, err := s.findNetwork(id) + if err != nil { + http.Error(w, err.Error(), http.StatusNotFound) + return + } + w.Header().Set("Content-Type", "application/json") + w.WriteHeader(http.StatusOK) + json.NewEncoder(w).Encode(network) +} + +// isValidName validates configuration objects supported by libnetwork +func isValidName(name string) bool { + if name == "" || strings.Contains(name, ".") { + return false + } + return true +} + +func (s *DockerServer) createNetwork(w http.ResponseWriter, r *http.Request) { + var config *docker.CreateNetworkOptions + defer r.Body.Close() + err := json.NewDecoder(r.Body).Decode(&config) + if err != nil { + http.Error(w, err.Error(), http.StatusBadRequest) + return + } + if !isValidName(config.Name) { + http.Error(w, "Invalid network name", http.StatusBadRequest) + return + } + if n, _, _ := s.findNetwork(config.Name); n != nil { + http.Error(w, "network already exists", http.StatusForbidden) + return + } + + generatedID := s.generateID() + network := docker.Network{ + Name: config.Name, + ID: generatedID, + Type: config.NetworkType, + } + s.netMut.Lock() + s.networks = append(s.networks, &network) + s.netMut.Unlock() + w.WriteHeader(http.StatusCreated) + var c = struct{ ID string }{ID: network.ID} + json.NewEncoder(w).Encode(c) +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/tls.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/tls.go new file mode 100644 index 0000000..55f4317 --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/tls.go @@ -0,0 +1,96 @@ +// Copyright 2014 go-dockerclient authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. +// +// The content is borrowed from Docker's own source code to provide a simple +// tls based dialer + +package docker + +import ( + "crypto/tls" + "errors" + "net" + "strings" + "time" +) + +type tlsClientCon struct { + *tls.Conn + rawConn net.Conn +} + +func (c *tlsClientCon) CloseWrite() error { + // Go standard tls.Conn doesn't provide the CloseWrite() method so we do it + // on its underlying connection. + if cwc, ok := c.rawConn.(interface { + CloseWrite() error + }); ok { + return cwc.CloseWrite() + } + return nil +} + +func tlsDialWithDialer(dialer *net.Dialer, network, addr string, config *tls.Config) (net.Conn, error) { + // We want the Timeout and Deadline values from dialer to cover the + // whole process: TCP connection and TLS handshake. This means that we + // also need to start our own timers now. + timeout := dialer.Timeout + + if !dialer.Deadline.IsZero() { + deadlineTimeout := dialer.Deadline.Sub(time.Now()) + if timeout == 0 || deadlineTimeout < timeout { + timeout = deadlineTimeout + } + } + + var errChannel chan error + + if timeout != 0 { + errChannel = make(chan error, 2) + time.AfterFunc(timeout, func() { + errChannel <- errors.New("") + }) + } + + rawConn, err := dialer.Dial(network, addr) + if err != nil { + return nil, err + } + + colonPos := strings.LastIndex(addr, ":") + if colonPos == -1 { + colonPos = len(addr) + } + hostname := addr[:colonPos] + + // If no ServerName is set, infer the ServerName + // from the hostname we're connecting to. + if config.ServerName == "" { + // Make a copy to avoid polluting argument or default. + c := *config + c.ServerName = hostname + config = &c + } + + conn := tls.Client(rawConn, config) + + if timeout == 0 { + err = conn.Handshake() + } else { + go func() { + errChannel <- conn.Handshake() + }() + + err = <-errChannel + } + + if err != nil { + rawConn.Close() + return nil, err + } + + // This is Docker difference with standard's crypto/tls package: returned a + // wrapper which holds both the TLS and raw connections. + return &tlsClientCon{conn, rawConn}, nil +} diff --git a/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/volume.go b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/volume.go new file mode 100644 index 0000000..a989a6e --- /dev/null +++ b/Godeps/_workspace/src/github.com/fsouza/go-dockerclient/volume.go @@ -0,0 +1,127 @@ +// Copyright 2015 go-dockerclient authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package docker + +import ( + "encoding/json" + "errors" + "net/http" +) + +var ( + // ErrNoSuchVolume is the error returned when the volume does not exist. + ErrNoSuchVolume = errors.New("no such volume") + + // ErrVolumeInUse is the error returned when the volume requested to be removed is still in use. + ErrVolumeInUse = errors.New("volume in use and cannot be removed") +) + +// Volume represents a volume. +// +// See https://goo.gl/FZA4BK for more details. +type Volume struct { + Name string `json:"Name" yaml:"Name"` + Driver string `json:"Driver,omitempty" yaml:"Driver,omitempty"` + Mountpoint string `json:"Mountpoint,omitempty" yaml:"Mountpoint,omitempty"` +} + +// ListVolumesOptions specify parameters to the ListVolumes function. +// +// See https://goo.gl/FZA4BK for more details. +type ListVolumesOptions struct { + Filters map[string][]string +} + +// ListVolumes returns a list of available volumes in the server. +// +// See https://goo.gl/FZA4BK for more details. +func (c *Client) ListVolumes(opts ListVolumesOptions) ([]Volume, error) { + resp, err := c.do("GET", "/volumes?"+queryString(opts), doOptions{}) + if err != nil { + return nil, err + } + defer resp.Body.Close() + m := make(map[string]interface{}) + if err := json.NewDecoder(resp.Body).Decode(&m); err != nil { + return nil, err + } + var volumes []Volume + volumesJSON, ok := m["Volumes"] + if !ok { + return volumes, nil + } + data, err := json.Marshal(volumesJSON) + if err != nil { + return nil, err + } + if err := json.Unmarshal(data, &volumes); err != nil { + return nil, err + } + return volumes, nil +} + +// CreateVolumeOptions specify parameters to the CreateVolume function. +// +// See https://goo.gl/pBUbZ9 for more details. +type CreateVolumeOptions struct { + Name string + Driver string + DriverOpts map[string]string +} + +// CreateVolume creates a volume on the server. +// +// See https://goo.gl/pBUbZ9 for more details. +func (c *Client) CreateVolume(opts CreateVolumeOptions) (*Volume, error) { + resp, err := c.do("POST", "/volumes", doOptions{data: opts}) + if err != nil { + return nil, err + } + defer resp.Body.Close() + var volume Volume + if err := json.NewDecoder(resp.Body).Decode(&volume); err != nil { + return nil, err + } + return &volume, nil +} + +// InspectVolume returns a volume by its name. +// +// See https://goo.gl/0g9A6i for more details. +func (c *Client) InspectVolume(name string) (*Volume, error) { + resp, err := c.do("GET", "/volumes/"+name, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound { + return nil, ErrNoSuchVolume + } + return nil, err + } + defer resp.Body.Close() + var volume Volume + if err := json.NewDecoder(resp.Body).Decode(&volume); err != nil { + return nil, err + } + return &volume, nil +} + +// RemoveVolume removes a volume by its name. +// +// See https://goo.gl/79GNQz for more details. +func (c *Client) RemoveVolume(name string) error { + resp, err := c.do("DELETE", "/volumes/"+name, doOptions{}) + if err != nil { + if e, ok := err.(*Error); ok { + if e.Status == http.StatusNotFound { + return ErrNoSuchVolume + } + if e.Status == http.StatusConflict { + return ErrVolumeInUse + } + } + return nil + } + defer resp.Body.Close() + return nil +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/internal/commandinfo.go b/Godeps/_workspace/src/github.com/garyburd/redigo/internal/commandinfo.go new file mode 100644 index 0000000..ce78eff --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/internal/commandinfo.go @@ -0,0 +1,45 @@ +// Copyright 2014 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package internal + +import ( + "strings" +) + +const ( + WatchState = 1 << iota + MultiState + SubscribeState + MonitorState +) + +type CommandInfo struct { + Set, Clear int +} + +var commandInfos = map[string]CommandInfo{ + "WATCH": {Set: WatchState}, + "UNWATCH": {Clear: WatchState}, + "MULTI": {Set: MultiState}, + "EXEC": {Clear: WatchState | MultiState}, + "DISCARD": {Clear: WatchState | MultiState}, + "PSUBSCRIBE": {Set: SubscribeState}, + "SUBSCRIBE": {Set: SubscribeState}, + "MONITOR": {Set: MonitorState}, +} + +func LookupCommandInfo(commandName string) CommandInfo { + return commandInfos[strings.ToUpper(commandName)] +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/internal/redistest/testdb.go b/Godeps/_workspace/src/github.com/garyburd/redigo/internal/redistest/testdb.go new file mode 100644 index 0000000..5f955c4 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/internal/redistest/testdb.go @@ -0,0 +1,65 @@ +// Copyright 2014 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +// Package redistest contains utilities for writing Redigo tests. +package redistest + +import ( + "errors" + "time" + + "github.com/garyburd/redigo/redis" +) + +type testConn struct { + redis.Conn +} + +func (t testConn) Close() error { + _, err := t.Conn.Do("SELECT", "9") + if err != nil { + return nil + } + _, err = t.Conn.Do("FLUSHDB") + if err != nil { + return err + } + return t.Conn.Close() +} + +// Dial dials the local Redis server and selects database 9. To prevent +// stomping on real data, DialTestDB fails if database 9 contains data. The +// returned connection flushes database 9 on close. +func Dial() (redis.Conn, error) { + c, err := redis.DialTimeout("tcp", ":6379", 0, 1*time.Second, 1*time.Second) + if err != nil { + return nil, err + } + + _, err = c.Do("SELECT", "9") + if err != nil { + return nil, err + } + + n, err := redis.Int(c.Do("DBSIZE")) + if err != nil { + return nil, err + } + + if n != 0 { + return nil, errors.New("database #9 is not empty, test can not continue") + } + + return testConn{c}, nil +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/conn.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/conn.go new file mode 100644 index 0000000..ac0e971 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/conn.go @@ -0,0 +1,455 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +import ( + "bufio" + "bytes" + "errors" + "fmt" + "io" + "net" + "strconv" + "sync" + "time" +) + +// conn is the low-level implementation of Conn +type conn struct { + + // Shared + mu sync.Mutex + pending int + err error + conn net.Conn + + // Read + readTimeout time.Duration + br *bufio.Reader + + // Write + writeTimeout time.Duration + bw *bufio.Writer + + // Scratch space for formatting argument length. + // '*' or '$', length, "\r\n" + lenScratch [32]byte + + // Scratch space for formatting integers and floats. + numScratch [40]byte +} + +// Dial connects to the Redis server at the given network and address. +func Dial(network, address string) (Conn, error) { + dialer := xDialer{} + return dialer.Dial(network, address) +} + +// DialTimeout acts like Dial but takes timeouts for establishing the +// connection to the server, writing a command and reading a reply. +func DialTimeout(network, address string, connectTimeout, readTimeout, writeTimeout time.Duration) (Conn, error) { + netDialer := net.Dialer{Timeout: connectTimeout} + dialer := xDialer{ + NetDial: netDialer.Dial, + ReadTimeout: readTimeout, + WriteTimeout: writeTimeout, + } + return dialer.Dial(network, address) +} + +// A Dialer specifies options for connecting to a Redis server. +type xDialer struct { + // NetDial specifies the dial function for creating TCP connections. If + // NetDial is nil, then net.Dial is used. + NetDial func(network, addr string) (net.Conn, error) + + // ReadTimeout specifies the timeout for reading a single command + // reply. If ReadTimeout is zero, then no timeout is used. + ReadTimeout time.Duration + + // WriteTimeout specifies the timeout for writing a single command. If + // WriteTimeout is zero, then no timeout is used. + WriteTimeout time.Duration +} + +// Dial connects to the Redis server at address on the named network. +func (d *xDialer) Dial(network, address string) (Conn, error) { + dial := d.NetDial + if dial == nil { + dial = net.Dial + } + netConn, err := dial(network, address) + if err != nil { + return nil, err + } + return &conn{ + conn: netConn, + bw: bufio.NewWriter(netConn), + br: bufio.NewReader(netConn), + readTimeout: d.ReadTimeout, + writeTimeout: d.WriteTimeout, + }, nil +} + +// NewConn returns a new Redigo connection for the given net connection. +func NewConn(netConn net.Conn, readTimeout, writeTimeout time.Duration) Conn { + return &conn{ + conn: netConn, + bw: bufio.NewWriter(netConn), + br: bufio.NewReader(netConn), + readTimeout: readTimeout, + writeTimeout: writeTimeout, + } +} + +func (c *conn) Close() error { + c.mu.Lock() + err := c.err + if c.err == nil { + c.err = errors.New("redigo: closed") + err = c.conn.Close() + } + c.mu.Unlock() + return err +} + +func (c *conn) fatal(err error) error { + c.mu.Lock() + if c.err == nil { + c.err = err + // Close connection to force errors on subsequent calls and to unblock + // other reader or writer. + c.conn.Close() + } + c.mu.Unlock() + return err +} + +func (c *conn) Err() error { + c.mu.Lock() + err := c.err + c.mu.Unlock() + return err +} + +func (c *conn) writeLen(prefix byte, n int) error { + c.lenScratch[len(c.lenScratch)-1] = '\n' + c.lenScratch[len(c.lenScratch)-2] = '\r' + i := len(c.lenScratch) - 3 + for { + c.lenScratch[i] = byte('0' + n%10) + i -= 1 + n = n / 10 + if n == 0 { + break + } + } + c.lenScratch[i] = prefix + _, err := c.bw.Write(c.lenScratch[i:]) + return err +} + +func (c *conn) writeString(s string) error { + c.writeLen('$', len(s)) + c.bw.WriteString(s) + _, err := c.bw.WriteString("\r\n") + return err +} + +func (c *conn) writeBytes(p []byte) error { + c.writeLen('$', len(p)) + c.bw.Write(p) + _, err := c.bw.WriteString("\r\n") + return err +} + +func (c *conn) writeInt64(n int64) error { + return c.writeBytes(strconv.AppendInt(c.numScratch[:0], n, 10)) +} + +func (c *conn) writeFloat64(n float64) error { + return c.writeBytes(strconv.AppendFloat(c.numScratch[:0], n, 'g', -1, 64)) +} + +func (c *conn) writeCommand(cmd string, args []interface{}) (err error) { + c.writeLen('*', 1+len(args)) + err = c.writeString(cmd) + for _, arg := range args { + if err != nil { + break + } + switch arg := arg.(type) { + case string: + err = c.writeString(arg) + case []byte: + err = c.writeBytes(arg) + case int: + err = c.writeInt64(int64(arg)) + case int64: + err = c.writeInt64(arg) + case float64: + err = c.writeFloat64(arg) + case bool: + if arg { + err = c.writeString("1") + } else { + err = c.writeString("0") + } + case nil: + err = c.writeString("") + default: + var buf bytes.Buffer + fmt.Fprint(&buf, arg) + err = c.writeBytes(buf.Bytes()) + } + } + return err +} + +type protocolError string + +func (pe protocolError) Error() string { + return fmt.Sprintf("redigo: %s (possible server error or unsupported concurrent read by application)", string(pe)) +} + +func (c *conn) readLine() ([]byte, error) { + p, err := c.br.ReadSlice('\n') + if err == bufio.ErrBufferFull { + return nil, protocolError("long response line") + } + if err != nil { + return nil, err + } + i := len(p) - 2 + if i < 0 || p[i] != '\r' { + return nil, protocolError("bad response line terminator") + } + return p[:i], nil +} + +// parseLen parses bulk string and array lengths. +func parseLen(p []byte) (int, error) { + if len(p) == 0 { + return -1, protocolError("malformed length") + } + + if p[0] == '-' && len(p) == 2 && p[1] == '1' { + // handle $-1 and $-1 null replies. + return -1, nil + } + + var n int + for _, b := range p { + n *= 10 + if b < '0' || b > '9' { + return -1, protocolError("illegal bytes in length") + } + n += int(b - '0') + } + + return n, nil +} + +// parseInt parses an integer reply. +func parseInt(p []byte) (interface{}, error) { + if len(p) == 0 { + return 0, protocolError("malformed integer") + } + + var negate bool + if p[0] == '-' { + negate = true + p = p[1:] + if len(p) == 0 { + return 0, protocolError("malformed integer") + } + } + + var n int64 + for _, b := range p { + n *= 10 + if b < '0' || b > '9' { + return 0, protocolError("illegal bytes in length") + } + n += int64(b - '0') + } + + if negate { + n = -n + } + return n, nil +} + +var ( + okReply interface{} = "OK" + pongReply interface{} = "PONG" +) + +func (c *conn) readReply() (interface{}, error) { + line, err := c.readLine() + if err != nil { + return nil, err + } + if len(line) == 0 { + return nil, protocolError("short response line") + } + switch line[0] { + case '+': + switch { + case len(line) == 3 && line[1] == 'O' && line[2] == 'K': + // Avoid allocation for frequent "+OK" response. + return okReply, nil + case len(line) == 5 && line[1] == 'P' && line[2] == 'O' && line[3] == 'N' && line[4] == 'G': + // Avoid allocation in PING command benchmarks :) + return pongReply, nil + default: + return string(line[1:]), nil + } + case '-': + return Error(string(line[1:])), nil + case ':': + return parseInt(line[1:]) + case '$': + n, err := parseLen(line[1:]) + if n < 0 || err != nil { + return nil, err + } + p := make([]byte, n) + _, err = io.ReadFull(c.br, p) + if err != nil { + return nil, err + } + if line, err := c.readLine(); err != nil { + return nil, err + } else if len(line) != 0 { + return nil, protocolError("bad bulk string format") + } + return p, nil + case '*': + n, err := parseLen(line[1:]) + if n < 0 || err != nil { + return nil, err + } + r := make([]interface{}, n) + for i := range r { + r[i], err = c.readReply() + if err != nil { + return nil, err + } + } + return r, nil + } + return nil, protocolError("unexpected response line") +} + +func (c *conn) Send(cmd string, args ...interface{}) error { + c.mu.Lock() + c.pending += 1 + c.mu.Unlock() + if c.writeTimeout != 0 { + c.conn.SetWriteDeadline(time.Now().Add(c.writeTimeout)) + } + if err := c.writeCommand(cmd, args); err != nil { + return c.fatal(err) + } + return nil +} + +func (c *conn) Flush() error { + if c.writeTimeout != 0 { + c.conn.SetWriteDeadline(time.Now().Add(c.writeTimeout)) + } + if err := c.bw.Flush(); err != nil { + return c.fatal(err) + } + return nil +} + +func (c *conn) Receive() (reply interface{}, err error) { + if c.readTimeout != 0 { + c.conn.SetReadDeadline(time.Now().Add(c.readTimeout)) + } + if reply, err = c.readReply(); err != nil { + return nil, c.fatal(err) + } + // When using pub/sub, the number of receives can be greater than the + // number of sends. To enable normal use of the connection after + // unsubscribing from all channels, we do not decrement pending to a + // negative value. + // + // The pending field is decremented after the reply is read to handle the + // case where Receive is called before Send. + c.mu.Lock() + if c.pending > 0 { + c.pending -= 1 + } + c.mu.Unlock() + if err, ok := reply.(Error); ok { + return nil, err + } + return +} + +func (c *conn) Do(cmd string, args ...interface{}) (interface{}, error) { + c.mu.Lock() + pending := c.pending + c.pending = 0 + c.mu.Unlock() + + if cmd == "" && pending == 0 { + return nil, nil + } + + if c.writeTimeout != 0 { + c.conn.SetWriteDeadline(time.Now().Add(c.writeTimeout)) + } + + if cmd != "" { + c.writeCommand(cmd, args) + } + + if err := c.bw.Flush(); err != nil { + return nil, c.fatal(err) + } + + if c.readTimeout != 0 { + c.conn.SetReadDeadline(time.Now().Add(c.readTimeout)) + } + + if cmd == "" { + reply := make([]interface{}, pending) + for i := range reply { + r, e := c.readReply() + if e != nil { + return nil, c.fatal(e) + } + reply[i] = r + } + return reply, nil + } + + var err error + var reply interface{} + for i := 0; i <= pending; i++ { + var e error + if reply, e = c.readReply(); e != nil { + return nil, c.fatal(e) + } + if e, ok := reply.(Error); ok && err == nil { + err = e + } + } + return reply, err +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/doc.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/doc.go new file mode 100644 index 0000000..1ae6f0c --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/doc.go @@ -0,0 +1,169 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +// Package redis is a client for the Redis database. +// +// The Redigo FAQ (https://github.com/garyburd/redigo/wiki/FAQ) contains more +// documentation about this package. +// +// Connections +// +// The Conn interface is the primary interface for working with Redis. +// Applications create connections by calling the Dial, DialWithTimeout or +// NewConn functions. In the future, functions will be added for creating +// sharded and other types of connections. +// +// The application must call the connection Close method when the application +// is done with the connection. +// +// Executing Commands +// +// The Conn interface has a generic method for executing Redis commands: +// +// Do(commandName string, args ...interface{}) (reply interface{}, err error) +// +// The Redis command reference (http://redis.io/commands) lists the available +// commands. An example of using the Redis APPEND command is: +// +// n, err := conn.Do("APPEND", "key", "value") +// +// The Do method converts command arguments to binary strings for transmission +// to the server as follows: +// +// Go Type Conversion +// []byte Sent as is +// string Sent as is +// int, int64 strconv.FormatInt(v) +// float64 strconv.FormatFloat(v, 'g', -1, 64) +// bool true -> "1", false -> "0" +// nil "" +// all other types fmt.Print(v) +// +// Redis command reply types are represented using the following Go types: +// +// Redis type Go type +// error redis.Error +// integer int64 +// simple string string +// bulk string []byte or nil if value not present. +// array []interface{} or nil if value not present. +// +// Use type assertions or the reply helper functions to convert from +// interface{} to the specific Go type for the command result. +// +// Pipelining +// +// Connections support pipelining using the Send, Flush and Receive methods. +// +// Send(commandName string, args ...interface{}) error +// Flush() error +// Receive() (reply interface{}, err error) +// +// Send writes the command to the connection's output buffer. Flush flushes the +// connection's output buffer to the server. Receive reads a single reply from +// the server. The following example shows a simple pipeline. +// +// c.Send("SET", "foo", "bar") +// c.Send("GET", "foo") +// c.Flush() +// c.Receive() // reply from SET +// v, err = c.Receive() // reply from GET +// +// The Do method combines the functionality of the Send, Flush and Receive +// methods. The Do method starts by writing the command and flushing the output +// buffer. Next, the Do method receives all pending replies including the reply +// for the command just sent by Do. If any of the received replies is an error, +// then Do returns the error. If there are no errors, then Do returns the last +// reply. If the command argument to the Do method is "", then the Do method +// will flush the output buffer and receive pending replies without sending a +// command. +// +// Use the Send and Do methods to implement pipelined transactions. +// +// c.Send("MULTI") +// c.Send("INCR", "foo") +// c.Send("INCR", "bar") +// r, err := c.Do("EXEC") +// fmt.Println(r) // prints [1, 1] +// +// Concurrency +// +// Connections do not support concurrent calls to the write methods (Send, +// Flush) or concurrent calls to the read method (Receive). Connections do +// allow a concurrent reader and writer. +// +// Because the Do method combines the functionality of Send, Flush and Receive, +// the Do method cannot be called concurrently with the other methods. +// +// For full concurrent access to Redis, use the thread-safe Pool to get and +// release connections from within a goroutine. +// +// Publish and Subscribe +// +// Use the Send, Flush and Receive methods to implement Pub/Sub subscribers. +// +// c.Send("SUBSCRIBE", "example") +// c.Flush() +// for { +// reply, err := c.Receive() +// if err != nil { +// return err +// } +// // process pushed message +// } +// +// The PubSubConn type wraps a Conn with convenience methods for implementing +// subscribers. The Subscribe, PSubscribe, Unsubscribe and PUnsubscribe methods +// send and flush a subscription management command. The receive method +// converts a pushed message to convenient types for use in a type switch. +// +// psc := redis.PubSubConn{c} +// psc.Subscribe("example") +// for { +// switch v := psc.Receive().(type) { +// case redis.Message: +// fmt.Printf("%s: message: %s\n", v.Channel, v.Data) +// case redis.Subscription: +// fmt.Printf("%s: %s %d\n", v.Channel, v.Kind, v.Count) +// case error: +// return v +// } +// } +// +// Reply Helpers +// +// The Bool, Int, Bytes, String, Strings and Values functions convert a reply +// to a value of a specific type. To allow convenient wrapping of calls to the +// connection Do and Receive methods, the functions take a second argument of +// type error. If the error is non-nil, then the helper function returns the +// error. If the error is nil, the function converts the reply to the specified +// type: +// +// exists, err := redis.Bool(c.Do("EXISTS", "foo")) +// if err != nil { +// // handle error return from c.Do or type conversion error. +// } +// +// The Scan function converts elements of a array reply to Go types: +// +// var value1 int +// var value2 string +// reply, err := redis.Values(c.Do("MGET", "key1", "key2")) +// if err != nil { +// // handle error +// } +// if _, err := redis.Scan(reply, &value1, &value2); err != nil { +// // handle error +// } +package redis diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/log.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/log.go new file mode 100644 index 0000000..129b86d --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/log.go @@ -0,0 +1,117 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +import ( + "bytes" + "fmt" + "log" +) + +// NewLoggingConn returns a logging wrapper around a connection. +func NewLoggingConn(conn Conn, logger *log.Logger, prefix string) Conn { + if prefix != "" { + prefix = prefix + "." + } + return &loggingConn{conn, logger, prefix} +} + +type loggingConn struct { + Conn + logger *log.Logger + prefix string +} + +func (c *loggingConn) Close() error { + err := c.Conn.Close() + var buf bytes.Buffer + fmt.Fprintf(&buf, "%sClose() -> (%v)", c.prefix, err) + c.logger.Output(2, buf.String()) + return err +} + +func (c *loggingConn) printValue(buf *bytes.Buffer, v interface{}) { + const chop = 32 + switch v := v.(type) { + case []byte: + if len(v) > chop { + fmt.Fprintf(buf, "%q...", v[:chop]) + } else { + fmt.Fprintf(buf, "%q", v) + } + case string: + if len(v) > chop { + fmt.Fprintf(buf, "%q...", v[:chop]) + } else { + fmt.Fprintf(buf, "%q", v) + } + case []interface{}: + if len(v) == 0 { + buf.WriteString("[]") + } else { + sep := "[" + fin := "]" + if len(v) > chop { + v = v[:chop] + fin = "...]" + } + for _, vv := range v { + buf.WriteString(sep) + c.printValue(buf, vv) + sep = ", " + } + buf.WriteString(fin) + } + default: + fmt.Fprint(buf, v) + } +} + +func (c *loggingConn) print(method, commandName string, args []interface{}, reply interface{}, err error) { + var buf bytes.Buffer + fmt.Fprintf(&buf, "%s%s(", c.prefix, method) + if method != "Receive" { + buf.WriteString(commandName) + for _, arg := range args { + buf.WriteString(", ") + c.printValue(&buf, arg) + } + } + buf.WriteString(") -> (") + if method != "Send" { + c.printValue(&buf, reply) + buf.WriteString(", ") + } + fmt.Fprintf(&buf, "%v)", err) + c.logger.Output(3, buf.String()) +} + +func (c *loggingConn) Do(commandName string, args ...interface{}) (interface{}, error) { + reply, err := c.Conn.Do(commandName, args...) + c.print("Do", commandName, args, reply, err) + return reply, err +} + +func (c *loggingConn) Send(commandName string, args ...interface{}) error { + err := c.Conn.Send(commandName, args...) + c.print("Send", commandName, args, nil, err) + return err +} + +func (c *loggingConn) Receive() (interface{}, error) { + reply, err := c.Conn.Receive() + c.print("Receive", "", nil, reply, err) + return reply, err +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pool.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pool.go new file mode 100644 index 0000000..9daf2e3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pool.go @@ -0,0 +1,389 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +import ( + "bytes" + "container/list" + "crypto/rand" + "crypto/sha1" + "errors" + "io" + "strconv" + "sync" + "time" + + "github.com/garyburd/redigo/internal" +) + +var nowFunc = time.Now // for testing + +// ErrPoolExhausted is returned from a pool connection method (Do, Send, +// Receive, Flush, Err) when the maximum number of database connections in the +// pool has been reached. +var ErrPoolExhausted = errors.New("redigo: connection pool exhausted") + +var ( + errPoolClosed = errors.New("redigo: connection pool closed") + errConnClosed = errors.New("redigo: connection closed") +) + +// Pool maintains a pool of connections. The application calls the Get method +// to get a connection from the pool and the connection's Close method to +// return the connection's resources to the pool. +// +// The following example shows how to use a pool in a web application. The +// application creates a pool at application startup and makes it available to +// request handlers using a global variable. +// +// func newPool(server, password string) *redis.Pool { +// return &redis.Pool{ +// MaxIdle: 3, +// IdleTimeout: 240 * time.Second, +// Dial: func () (redis.Conn, error) { +// c, err := redis.Dial("tcp", server) +// if err != nil { +// return nil, err +// } +// if _, err := c.Do("AUTH", password); err != nil { +// c.Close() +// return nil, err +// } +// return c, err +// }, +// TestOnBorrow: func(c redis.Conn, t time.Time) error { +// _, err := c.Do("PING") +// return err +// }, +// } +// } +// +// var ( +// pool *redis.Pool +// redisServer = flag.String("redisServer", ":6379", "") +// redisPassword = flag.String("redisPassword", "", "") +// ) +// +// func main() { +// flag.Parse() +// pool = newPool(*redisServer, *redisPassword) +// ... +// } +// +// A request handler gets a connection from the pool and closes the connection +// when the handler is done: +// +// func serveHome(w http.ResponseWriter, r *http.Request) { +// conn := pool.Get() +// defer conn.Close() +// .... +// } +// +type Pool struct { + + // Dial is an application supplied function for creating and configuring a + // connection + Dial func() (Conn, error) + + // TestOnBorrow is an optional application supplied function for checking + // the health of an idle connection before the connection is used again by + // the application. Argument t is the time that the connection was returned + // to the pool. If the function returns an error, then the connection is + // closed. + TestOnBorrow func(c Conn, t time.Time) error + + // Maximum number of idle connections in the pool. + MaxIdle int + + // Maximum number of connections allocated by the pool at a given time. + // When zero, there is no limit on the number of connections in the pool. + MaxActive int + + // Close connections after remaining idle for this duration. If the value + // is zero, then idle connections are not closed. Applications should set + // the timeout to a value less than the server's timeout. + IdleTimeout time.Duration + + // If Wait is true and the pool is at the MaxIdle limit, then Get() waits + // for a connection to be returned to the pool before returning. + Wait bool + + // mu protects fields defined below. + mu sync.Mutex + cond *sync.Cond + closed bool + active int + + // Stack of idleConn with most recently used at the front. + idle list.List +} + +type idleConn struct { + c Conn + t time.Time +} + +// NewPool creates a new pool. This function is deprecated. Applications should +// initialize the Pool fields directly as shown in example. +func NewPool(newFn func() (Conn, error), maxIdle int) *Pool { + return &Pool{Dial: newFn, MaxIdle: maxIdle} +} + +// Get gets a connection. The application must close the returned connection. +// This method always returns a valid connection so that applications can defer +// error handling to the first use of the connection. If there is an error +// getting an underlying connection, then the connection Err, Do, Send, Flush +// and Receive methods return that error. +func (p *Pool) Get() Conn { + c, err := p.get() + if err != nil { + return errorConnection{err} + } + return &pooledConnection{p: p, c: c} +} + +// ActiveCount returns the number of active connections in the pool. +func (p *Pool) ActiveCount() int { + p.mu.Lock() + active := p.active + p.mu.Unlock() + return active +} + +// Close releases the resources used by the pool. +func (p *Pool) Close() error { + p.mu.Lock() + idle := p.idle + p.idle.Init() + p.closed = true + p.active -= idle.Len() + if p.cond != nil { + p.cond.Broadcast() + } + p.mu.Unlock() + for e := idle.Front(); e != nil; e = e.Next() { + e.Value.(idleConn).c.Close() + } + return nil +} + +// release decrements the active count and signals waiters. The caller must +// hold p.mu during the call. +func (p *Pool) release() { + p.active -= 1 + if p.cond != nil { + p.cond.Signal() + } +} + +// get prunes stale connections and returns a connection from the idle list or +// creates a new connection. +func (p *Pool) get() (Conn, error) { + p.mu.Lock() + + // Prune stale connections. + + if timeout := p.IdleTimeout; timeout > 0 { + for i, n := 0, p.idle.Len(); i < n; i++ { + e := p.idle.Back() + if e == nil { + break + } + ic := e.Value.(idleConn) + if ic.t.Add(timeout).After(nowFunc()) { + break + } + p.idle.Remove(e) + p.release() + p.mu.Unlock() + ic.c.Close() + p.mu.Lock() + } + } + + for { + + // Get idle connection. + + for i, n := 0, p.idle.Len(); i < n; i++ { + e := p.idle.Front() + if e == nil { + break + } + ic := e.Value.(idleConn) + p.idle.Remove(e) + test := p.TestOnBorrow + p.mu.Unlock() + if test == nil || test(ic.c, ic.t) == nil { + return ic.c, nil + } + ic.c.Close() + p.mu.Lock() + p.release() + } + + // Check for pool closed before dialing a new connection. + + if p.closed { + p.mu.Unlock() + return nil, errors.New("redigo: get on closed pool") + } + + // Dial new connection if under limit. + + if p.MaxActive == 0 || p.active < p.MaxActive { + dial := p.Dial + p.active += 1 + p.mu.Unlock() + c, err := dial() + if err != nil { + p.mu.Lock() + p.release() + p.mu.Unlock() + c = nil + } + return c, err + } + + if !p.Wait { + p.mu.Unlock() + return nil, ErrPoolExhausted + } + + if p.cond == nil { + p.cond = sync.NewCond(&p.mu) + } + p.cond.Wait() + } +} + +func (p *Pool) put(c Conn, forceClose bool) error { + err := c.Err() + p.mu.Lock() + if !p.closed && err == nil && !forceClose { + p.idle.PushFront(idleConn{t: nowFunc(), c: c}) + if p.idle.Len() > p.MaxIdle { + c = p.idle.Remove(p.idle.Back()).(idleConn).c + } else { + c = nil + } + } + + if c == nil { + if p.cond != nil { + p.cond.Signal() + } + p.mu.Unlock() + return nil + } + + p.release() + p.mu.Unlock() + return c.Close() +} + +type pooledConnection struct { + p *Pool + c Conn + state int +} + +var ( + sentinel []byte + sentinelOnce sync.Once +) + +func initSentinel() { + p := make([]byte, 64) + if _, err := rand.Read(p); err == nil { + sentinel = p + } else { + h := sha1.New() + io.WriteString(h, "Oops, rand failed. Use time instead.") + io.WriteString(h, strconv.FormatInt(time.Now().UnixNano(), 10)) + sentinel = h.Sum(nil) + } +} + +func (pc *pooledConnection) Close() error { + c := pc.c + if _, ok := c.(errorConnection); ok { + return nil + } + pc.c = errorConnection{errConnClosed} + + if pc.state&internal.MultiState != 0 { + c.Send("DISCARD") + pc.state &^= (internal.MultiState | internal.WatchState) + } else if pc.state&internal.WatchState != 0 { + c.Send("UNWATCH") + pc.state &^= internal.WatchState + } + if pc.state&internal.SubscribeState != 0 { + c.Send("UNSUBSCRIBE") + c.Send("PUNSUBSCRIBE") + // To detect the end of the message stream, ask the server to echo + // a sentinel value and read until we see that value. + sentinelOnce.Do(initSentinel) + c.Send("ECHO", sentinel) + c.Flush() + for { + p, err := c.Receive() + if err != nil { + break + } + if p, ok := p.([]byte); ok && bytes.Equal(p, sentinel) { + pc.state &^= internal.SubscribeState + break + } + } + } + c.Do("") + pc.p.put(c, pc.state != 0) + return nil +} + +func (pc *pooledConnection) Err() error { + return pc.c.Err() +} + +func (pc *pooledConnection) Do(commandName string, args ...interface{}) (reply interface{}, err error) { + ci := internal.LookupCommandInfo(commandName) + pc.state = (pc.state | ci.Set) &^ ci.Clear + return pc.c.Do(commandName, args...) +} + +func (pc *pooledConnection) Send(commandName string, args ...interface{}) error { + ci := internal.LookupCommandInfo(commandName) + pc.state = (pc.state | ci.Set) &^ ci.Clear + return pc.c.Send(commandName, args...) +} + +func (pc *pooledConnection) Flush() error { + return pc.c.Flush() +} + +func (pc *pooledConnection) Receive() (reply interface{}, err error) { + return pc.c.Receive() +} + +type errorConnection struct{ err error } + +func (ec errorConnection) Do(string, ...interface{}) (interface{}, error) { return nil, ec.err } +func (ec errorConnection) Send(string, ...interface{}) error { return ec.err } +func (ec errorConnection) Err() error { return ec.err } +func (ec errorConnection) Close() error { return ec.err } +func (ec errorConnection) Flush() error { return ec.err } +func (ec errorConnection) Receive() (interface{}, error) { return nil, ec.err } diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pubsub.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pubsub.go new file mode 100644 index 0000000..f079042 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pubsub.go @@ -0,0 +1,129 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +import ( + "errors" +) + +// Subscription represents a subscribe or unsubscribe notification. +type Subscription struct { + + // Kind is "subscribe", "unsubscribe", "psubscribe" or "punsubscribe" + Kind string + + // The channel that was changed. + Channel string + + // The current number of subscriptions for connection. + Count int +} + +// Message represents a message notification. +type Message struct { + + // The originating channel. + Channel string + + // The message data. + Data []byte +} + +// PMessage represents a pmessage notification. +type PMessage struct { + + // The matched pattern. + Pattern string + + // The originating channel. + Channel string + + // The message data. + Data []byte +} + +// PubSubConn wraps a Conn with convenience methods for subscribers. +type PubSubConn struct { + Conn Conn +} + +// Close closes the connection. +func (c PubSubConn) Close() error { + return c.Conn.Close() +} + +// Subscribe subscribes the connection to the specified channels. +func (c PubSubConn) Subscribe(channel ...interface{}) error { + c.Conn.Send("SUBSCRIBE", channel...) + return c.Conn.Flush() +} + +// PSubscribe subscribes the connection to the given patterns. +func (c PubSubConn) PSubscribe(channel ...interface{}) error { + c.Conn.Send("PSUBSCRIBE", channel...) + return c.Conn.Flush() +} + +// Unsubscribe unsubscribes the connection from the given channels, or from all +// of them if none is given. +func (c PubSubConn) Unsubscribe(channel ...interface{}) error { + c.Conn.Send("UNSUBSCRIBE", channel...) + return c.Conn.Flush() +} + +// PUnsubscribe unsubscribes the connection from the given patterns, or from all +// of them if none is given. +func (c PubSubConn) PUnsubscribe(channel ...interface{}) error { + c.Conn.Send("PUNSUBSCRIBE", channel...) + return c.Conn.Flush() +} + +// Receive returns a pushed message as a Subscription, Message, PMessage or +// error. The return value is intended to be used directly in a type switch as +// illustrated in the PubSubConn example. +func (c PubSubConn) Receive() interface{} { + reply, err := Values(c.Conn.Receive()) + if err != nil { + return err + } + + var kind string + reply, err = Scan(reply, &kind) + if err != nil { + return err + } + + switch kind { + case "message": + var m Message + if _, err := Scan(reply, &m.Channel, &m.Data); err != nil { + return err + } + return m + case "pmessage": + var pm PMessage + if _, err := Scan(reply, &pm.Pattern, &pm.Channel, &pm.Data); err != nil { + return err + } + return pm + case "subscribe", "psubscribe", "unsubscribe", "punsubscribe": + s := Subscription{Kind: kind} + if _, err := Scan(reply, &s.Channel, &s.Count); err != nil { + return err + } + return s + } + return errors.New("redigo: unknown pubsub notification") +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/redis.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/redis.go new file mode 100644 index 0000000..c90a48e --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/redis.go @@ -0,0 +1,44 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +// Error represents an error returned in a command reply. +type Error string + +func (err Error) Error() string { return string(err) } + +// Conn represents a connection to a Redis server. +type Conn interface { + // Close closes the connection. + Close() error + + // Err returns a non-nil value if the connection is broken. The returned + // value is either the first non-nil value returned from the underlying + // network connection or a protocol parsing error. Applications should + // close broken connections. + Err() error + + // Do sends a command to the server and returns the received reply. + Do(commandName string, args ...interface{}) (reply interface{}, err error) + + // Send writes the command to the client's output buffer. + Send(commandName string, args ...interface{}) error + + // Flush flushes the output buffer to the Redis server. + Flush() error + + // Receive receives a single reply from the Redis server + Receive() (reply interface{}, err error) +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/reply.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/reply.go new file mode 100644 index 0000000..5648f93 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/reply.go @@ -0,0 +1,312 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +import ( + "errors" + "fmt" + "strconv" +) + +// ErrNil indicates that a reply value is nil. +var ErrNil = errors.New("redigo: nil returned") + +// Int is a helper that converts a command reply to an integer. If err is not +// equal to nil, then Int returns 0, err. Otherwise, Int converts the +// reply to an int as follows: +// +// Reply type Result +// integer int(reply), nil +// bulk string parsed reply, nil +// nil 0, ErrNil +// other 0, error +func Int(reply interface{}, err error) (int, error) { + if err != nil { + return 0, err + } + switch reply := reply.(type) { + case int64: + x := int(reply) + if int64(x) != reply { + return 0, strconv.ErrRange + } + return x, nil + case []byte: + n, err := strconv.ParseInt(string(reply), 10, 0) + return int(n), err + case nil: + return 0, ErrNil + case Error: + return 0, reply + } + return 0, fmt.Errorf("redigo: unexpected type for Int, got type %T", reply) +} + +// Int64 is a helper that converts a command reply to 64 bit integer. If err is +// not equal to nil, then Int returns 0, err. Otherwise, Int64 converts the +// reply to an int64 as follows: +// +// Reply type Result +// integer reply, nil +// bulk string parsed reply, nil +// nil 0, ErrNil +// other 0, error +func Int64(reply interface{}, err error) (int64, error) { + if err != nil { + return 0, err + } + switch reply := reply.(type) { + case int64: + return reply, nil + case []byte: + n, err := strconv.ParseInt(string(reply), 10, 64) + return n, err + case nil: + return 0, ErrNil + case Error: + return 0, reply + } + return 0, fmt.Errorf("redigo: unexpected type for Int64, got type %T", reply) +} + +var errNegativeInt = errors.New("redigo: unexpected value for Uint64") + +// Uint64 is a helper that converts a command reply to 64 bit integer. If err is +// not equal to nil, then Int returns 0, err. Otherwise, Int64 converts the +// reply to an int64 as follows: +// +// Reply type Result +// integer reply, nil +// bulk string parsed reply, nil +// nil 0, ErrNil +// other 0, error +func Uint64(reply interface{}, err error) (uint64, error) { + if err != nil { + return 0, err + } + switch reply := reply.(type) { + case int64: + if reply < 0 { + return 0, errNegativeInt + } + return uint64(reply), nil + case []byte: + n, err := strconv.ParseUint(string(reply), 10, 64) + return n, err + case nil: + return 0, ErrNil + case Error: + return 0, reply + } + return 0, fmt.Errorf("redigo: unexpected type for Uint64, got type %T", reply) +} + +// Float64 is a helper that converts a command reply to 64 bit float. If err is +// not equal to nil, then Float64 returns 0, err. Otherwise, Float64 converts +// the reply to an int as follows: +// +// Reply type Result +// bulk string parsed reply, nil +// nil 0, ErrNil +// other 0, error +func Float64(reply interface{}, err error) (float64, error) { + if err != nil { + return 0, err + } + switch reply := reply.(type) { + case []byte: + n, err := strconv.ParseFloat(string(reply), 64) + return n, err + case nil: + return 0, ErrNil + case Error: + return 0, reply + } + return 0, fmt.Errorf("redigo: unexpected type for Float64, got type %T", reply) +} + +// String is a helper that converts a command reply to a string. If err is not +// equal to nil, then String returns "", err. Otherwise String converts the +// reply to a string as follows: +// +// Reply type Result +// bulk string string(reply), nil +// simple string reply, nil +// nil "", ErrNil +// other "", error +func String(reply interface{}, err error) (string, error) { + if err != nil { + return "", err + } + switch reply := reply.(type) { + case []byte: + return string(reply), nil + case string: + return reply, nil + case nil: + return "", ErrNil + case Error: + return "", reply + } + return "", fmt.Errorf("redigo: unexpected type for String, got type %T", reply) +} + +// Bytes is a helper that converts a command reply to a slice of bytes. If err +// is not equal to nil, then Bytes returns nil, err. Otherwise Bytes converts +// the reply to a slice of bytes as follows: +// +// Reply type Result +// bulk string reply, nil +// simple string []byte(reply), nil +// nil nil, ErrNil +// other nil, error +func Bytes(reply interface{}, err error) ([]byte, error) { + if err != nil { + return nil, err + } + switch reply := reply.(type) { + case []byte: + return reply, nil + case string: + return []byte(reply), nil + case nil: + return nil, ErrNil + case Error: + return nil, reply + } + return nil, fmt.Errorf("redigo: unexpected type for Bytes, got type %T", reply) +} + +// Bool is a helper that converts a command reply to a boolean. If err is not +// equal to nil, then Bool returns false, err. Otherwise Bool converts the +// reply to boolean as follows: +// +// Reply type Result +// integer value != 0, nil +// bulk string strconv.ParseBool(reply) +// nil false, ErrNil +// other false, error +func Bool(reply interface{}, err error) (bool, error) { + if err != nil { + return false, err + } + switch reply := reply.(type) { + case int64: + return reply != 0, nil + case []byte: + return strconv.ParseBool(string(reply)) + case nil: + return false, ErrNil + case Error: + return false, reply + } + return false, fmt.Errorf("redigo: unexpected type for Bool, got type %T", reply) +} + +// MultiBulk is deprecated. Use Values. +func MultiBulk(reply interface{}, err error) ([]interface{}, error) { return Values(reply, err) } + +// Values is a helper that converts an array command reply to a []interface{}. +// If err is not equal to nil, then Values returns nil, err. Otherwise, Values +// converts the reply as follows: +// +// Reply type Result +// array reply, nil +// nil nil, ErrNil +// other nil, error +func Values(reply interface{}, err error) ([]interface{}, error) { + if err != nil { + return nil, err + } + switch reply := reply.(type) { + case []interface{}: + return reply, nil + case nil: + return nil, ErrNil + case Error: + return nil, reply + } + return nil, fmt.Errorf("redigo: unexpected type for Values, got type %T", reply) +} + +// Strings is a helper that converts an array command reply to a []string. If +// err is not equal to nil, then Strings returns nil, err. Nil array items are +// converted to "" in the output slice. Strings returns an error if an array +// item is not a bulk string or nil. +func Strings(reply interface{}, err error) ([]string, error) { + if err != nil { + return nil, err + } + switch reply := reply.(type) { + case []interface{}: + result := make([]string, len(reply)) + for i := range reply { + if reply[i] == nil { + continue + } + p, ok := reply[i].([]byte) + if !ok { + return nil, fmt.Errorf("redigo: unexpected element type for Strings, got type %T", reply[i]) + } + result[i] = string(p) + } + return result, nil + case nil: + return nil, ErrNil + case Error: + return nil, reply + } + return nil, fmt.Errorf("redigo: unexpected type for Strings, got type %T", reply) +} + +// Ints is a helper that converts an array command reply to a []int. If +// err is not equal to nil, then Ints returns nil, err. +func Ints(reply interface{}, err error) ([]int, error) { + var ints []int + if reply == nil { + return ints, ErrNil + } + values, err := Values(reply, err) + if err != nil { + return ints, err + } + if err := ScanSlice(values, &ints); err != nil { + return ints, err + } + return ints, nil +} + +// StringMap is a helper that converts an array of strings (alternating key, value) +// into a map[string]string. The HGETALL and CONFIG GET commands return replies in this format. +// Requires an even number of values in result. +func StringMap(result interface{}, err error) (map[string]string, error) { + values, err := Values(result, err) + if err != nil { + return nil, err + } + if len(values)%2 != 0 { + return nil, errors.New("redigo: StringMap expects even number of values result") + } + m := make(map[string]string, len(values)/2) + for i := 0; i < len(values); i += 2 { + key, okKey := values[i].([]byte) + value, okValue := values[i+1].([]byte) + if !okKey || !okValue { + return nil, errors.New("redigo: ScanMap key not a bulk string value") + } + m[string(key)] = string(value) + } + return m, nil +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/scan.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/scan.go new file mode 100644 index 0000000..8c9cfa1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/scan.go @@ -0,0 +1,513 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +import ( + "errors" + "fmt" + "reflect" + "strconv" + "strings" + "sync" +) + +func ensureLen(d reflect.Value, n int) { + if n > d.Cap() { + d.Set(reflect.MakeSlice(d.Type(), n, n)) + } else { + d.SetLen(n) + } +} + +func cannotConvert(d reflect.Value, s interface{}) error { + return fmt.Errorf("redigo: Scan cannot convert from %s to %s", + reflect.TypeOf(s), d.Type()) +} + +func convertAssignBytes(d reflect.Value, s []byte) (err error) { + switch d.Type().Kind() { + case reflect.Float32, reflect.Float64: + var x float64 + x, err = strconv.ParseFloat(string(s), d.Type().Bits()) + d.SetFloat(x) + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + var x int64 + x, err = strconv.ParseInt(string(s), 10, d.Type().Bits()) + d.SetInt(x) + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + var x uint64 + x, err = strconv.ParseUint(string(s), 10, d.Type().Bits()) + d.SetUint(x) + case reflect.Bool: + var x bool + x, err = strconv.ParseBool(string(s)) + d.SetBool(x) + case reflect.String: + d.SetString(string(s)) + case reflect.Slice: + if d.Type().Elem().Kind() != reflect.Uint8 { + err = cannotConvert(d, s) + } else { + d.SetBytes(s) + } + default: + err = cannotConvert(d, s) + } + return +} + +func convertAssignInt(d reflect.Value, s int64) (err error) { + switch d.Type().Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + d.SetInt(s) + if d.Int() != s { + err = strconv.ErrRange + d.SetInt(0) + } + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + if s < 0 { + err = strconv.ErrRange + } else { + x := uint64(s) + d.SetUint(x) + if d.Uint() != x { + err = strconv.ErrRange + d.SetUint(0) + } + } + case reflect.Bool: + d.SetBool(s != 0) + default: + err = cannotConvert(d, s) + } + return +} + +func convertAssignValue(d reflect.Value, s interface{}) (err error) { + switch s := s.(type) { + case []byte: + err = convertAssignBytes(d, s) + case int64: + err = convertAssignInt(d, s) + default: + err = cannotConvert(d, s) + } + return err +} + +func convertAssignValues(d reflect.Value, s []interface{}) error { + if d.Type().Kind() != reflect.Slice { + return cannotConvert(d, s) + } + ensureLen(d, len(s)) + for i := 0; i < len(s); i++ { + if err := convertAssignValue(d.Index(i), s[i]); err != nil { + return err + } + } + return nil +} + +func convertAssign(d interface{}, s interface{}) (err error) { + // Handle the most common destination types using type switches and + // fall back to reflection for all other types. + switch s := s.(type) { + case nil: + // ingore + case []byte: + switch d := d.(type) { + case *string: + *d = string(s) + case *int: + *d, err = strconv.Atoi(string(s)) + case *bool: + *d, err = strconv.ParseBool(string(s)) + case *[]byte: + *d = s + case *interface{}: + *d = s + case nil: + // skip value + default: + if d := reflect.ValueOf(d); d.Type().Kind() != reflect.Ptr { + err = cannotConvert(d, s) + } else { + err = convertAssignBytes(d.Elem(), s) + } + } + case int64: + switch d := d.(type) { + case *int: + x := int(s) + if int64(x) != s { + err = strconv.ErrRange + x = 0 + } + *d = x + case *bool: + *d = s != 0 + case *interface{}: + *d = s + case nil: + // skip value + default: + if d := reflect.ValueOf(d); d.Type().Kind() != reflect.Ptr { + err = cannotConvert(d, s) + } else { + err = convertAssignInt(d.Elem(), s) + } + } + case []interface{}: + switch d := d.(type) { + case *[]interface{}: + *d = s + case *interface{}: + *d = s + case nil: + // skip value + default: + if d := reflect.ValueOf(d); d.Type().Kind() != reflect.Ptr { + err = cannotConvert(d, s) + } else { + err = convertAssignValues(d.Elem(), s) + } + } + case Error: + err = s + default: + err = cannotConvert(reflect.ValueOf(d), s) + } + return +} + +// Scan copies from src to the values pointed at by dest. +// +// The values pointed at by dest must be an integer, float, boolean, string, +// []byte, interface{} or slices of these types. Scan uses the standard strconv +// package to convert bulk strings to numeric and boolean types. +// +// If a dest value is nil, then the corresponding src value is skipped. +// +// If a src element is nil, then the corresponding dest value is not modified. +// +// To enable easy use of Scan in a loop, Scan returns the slice of src +// following the copied values. +func Scan(src []interface{}, dest ...interface{}) ([]interface{}, error) { + if len(src) < len(dest) { + return nil, errors.New("redigo: Scan array short") + } + var err error + for i, d := range dest { + err = convertAssign(d, src[i]) + if err != nil { + break + } + } + return src[len(dest):], err +} + +type fieldSpec struct { + name string + index []int + //omitEmpty bool +} + +type structSpec struct { + m map[string]*fieldSpec + l []*fieldSpec +} + +func (ss *structSpec) fieldSpec(name []byte) *fieldSpec { + return ss.m[string(name)] +} + +func compileStructSpec(t reflect.Type, depth map[string]int, index []int, ss *structSpec) { + for i := 0; i < t.NumField(); i++ { + f := t.Field(i) + switch { + case f.PkgPath != "": + // Ignore unexported fields. + case f.Anonymous: + // TODO: Handle pointers. Requires change to decoder and + // protection against infinite recursion. + if f.Type.Kind() == reflect.Struct { + compileStructSpec(f.Type, depth, append(index, i), ss) + } + default: + fs := &fieldSpec{name: f.Name} + tag := f.Tag.Get("redis") + p := strings.Split(tag, ",") + if len(p) > 0 { + if p[0] == "-" { + continue + } + if len(p[0]) > 0 { + fs.name = p[0] + } + for _, s := range p[1:] { + switch s { + //case "omitempty": + // fs.omitempty = true + default: + panic(errors.New("redigo: unknown field flag " + s + " for type " + t.Name())) + } + } + } + d, found := depth[fs.name] + if !found { + d = 1 << 30 + } + switch { + case len(index) == d: + // At same depth, remove from result. + delete(ss.m, fs.name) + j := 0 + for i := 0; i < len(ss.l); i++ { + if fs.name != ss.l[i].name { + ss.l[j] = ss.l[i] + j += 1 + } + } + ss.l = ss.l[:j] + case len(index) < d: + fs.index = make([]int, len(index)+1) + copy(fs.index, index) + fs.index[len(index)] = i + depth[fs.name] = len(index) + ss.m[fs.name] = fs + ss.l = append(ss.l, fs) + } + } + } +} + +var ( + structSpecMutex sync.RWMutex + structSpecCache = make(map[reflect.Type]*structSpec) + defaultFieldSpec = &fieldSpec{} +) + +func structSpecForType(t reflect.Type) *structSpec { + + structSpecMutex.RLock() + ss, found := structSpecCache[t] + structSpecMutex.RUnlock() + if found { + return ss + } + + structSpecMutex.Lock() + defer structSpecMutex.Unlock() + ss, found = structSpecCache[t] + if found { + return ss + } + + ss = &structSpec{m: make(map[string]*fieldSpec)} + compileStructSpec(t, make(map[string]int), nil, ss) + structSpecCache[t] = ss + return ss +} + +var errScanStructValue = errors.New("redigo: ScanStruct value must be non-nil pointer to a struct") + +// ScanStruct scans alternating names and values from src to a struct. The +// HGETALL and CONFIG GET commands return replies in this format. +// +// ScanStruct uses exported field names to match values in the response. Use +// 'redis' field tag to override the name: +// +// Field int `redis:"myName"` +// +// Fields with the tag redis:"-" are ignored. +// +// Integer, float, boolean, string and []byte fields are supported. Scan uses the +// standard strconv package to convert bulk string values to numeric and +// boolean types. +// +// If a src element is nil, then the corresponding field is not modified. +func ScanStruct(src []interface{}, dest interface{}) error { + d := reflect.ValueOf(dest) + if d.Kind() != reflect.Ptr || d.IsNil() { + return errScanStructValue + } + d = d.Elem() + if d.Kind() != reflect.Struct { + return errScanStructValue + } + ss := structSpecForType(d.Type()) + + if len(src)%2 != 0 { + return errors.New("redigo: ScanStruct expects even number of values in values") + } + + for i := 0; i < len(src); i += 2 { + s := src[i+1] + if s == nil { + continue + } + name, ok := src[i].([]byte) + if !ok { + return errors.New("redigo: ScanStruct key not a bulk string value") + } + fs := ss.fieldSpec(name) + if fs == nil { + continue + } + if err := convertAssignValue(d.FieldByIndex(fs.index), s); err != nil { + return err + } + } + return nil +} + +var ( + errScanSliceValue = errors.New("redigo: ScanSlice dest must be non-nil pointer to a struct") +) + +// ScanSlice scans src to the slice pointed to by dest. The elements the dest +// slice must be integer, float, boolean, string, struct or pointer to struct +// values. +// +// Struct fields must be integer, float, boolean or string values. All struct +// fields are used unless a subset is specified using fieldNames. +func ScanSlice(src []interface{}, dest interface{}, fieldNames ...string) error { + d := reflect.ValueOf(dest) + if d.Kind() != reflect.Ptr || d.IsNil() { + return errScanSliceValue + } + d = d.Elem() + if d.Kind() != reflect.Slice { + return errScanSliceValue + } + + isPtr := false + t := d.Type().Elem() + if t.Kind() == reflect.Ptr && t.Elem().Kind() == reflect.Struct { + isPtr = true + t = t.Elem() + } + + if t.Kind() != reflect.Struct { + ensureLen(d, len(src)) + for i, s := range src { + if s == nil { + continue + } + if err := convertAssignValue(d.Index(i), s); err != nil { + return err + } + } + return nil + } + + ss := structSpecForType(t) + fss := ss.l + if len(fieldNames) > 0 { + fss = make([]*fieldSpec, len(fieldNames)) + for i, name := range fieldNames { + fss[i] = ss.m[name] + if fss[i] == nil { + return errors.New("redigo: ScanSlice bad field name " + name) + } + } + } + + if len(fss) == 0 { + return errors.New("redigo: ScanSlice no struct fields") + } + + n := len(src) / len(fss) + if n*len(fss) != len(src) { + return errors.New("redigo: ScanSlice length not a multiple of struct field count") + } + + ensureLen(d, n) + for i := 0; i < n; i++ { + d := d.Index(i) + if isPtr { + if d.IsNil() { + d.Set(reflect.New(t)) + } + d = d.Elem() + } + for j, fs := range fss { + s := src[i*len(fss)+j] + if s == nil { + continue + } + if err := convertAssignValue(d.FieldByIndex(fs.index), s); err != nil { + return err + } + } + } + return nil +} + +// Args is a helper for constructing command arguments from structured values. +type Args []interface{} + +// Add returns the result of appending value to args. +func (args Args) Add(value ...interface{}) Args { + return append(args, value...) +} + +// AddFlat returns the result of appending the flattened value of v to args. +// +// Maps are flattened by appending the alternating keys and map values to args. +// +// Slices are flattened by appending the slice elements to args. +// +// Structs are flattened by appending the alternating names and values of +// exported fields to args. If v is a nil struct pointer, then nothing is +// appended. The 'redis' field tag overrides struct field names. See ScanStruct +// for more information on the use of the 'redis' field tag. +// +// Other types are appended to args as is. +func (args Args) AddFlat(v interface{}) Args { + rv := reflect.ValueOf(v) + switch rv.Kind() { + case reflect.Struct: + args = flattenStruct(args, rv) + case reflect.Slice: + for i := 0; i < rv.Len(); i++ { + args = append(args, rv.Index(i).Interface()) + } + case reflect.Map: + for _, k := range rv.MapKeys() { + args = append(args, k.Interface(), rv.MapIndex(k).Interface()) + } + case reflect.Ptr: + if rv.Type().Elem().Kind() == reflect.Struct { + if !rv.IsNil() { + args = flattenStruct(args, rv.Elem()) + } + } else { + args = append(args, v) + } + default: + args = append(args, v) + } + return args +} + +func flattenStruct(args Args, v reflect.Value) Args { + ss := structSpecForType(v.Type()) + for _, fs := range ss.l { + fv := v.FieldByIndex(fs.index) + args = append(args, fs.name, fv.Interface()) + } + return args +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/script.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/script.go new file mode 100644 index 0000000..78605a9 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/script.go @@ -0,0 +1,86 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +import ( + "crypto/sha1" + "encoding/hex" + "io" + "strings" +) + +// Script encapsulates the source, hash and key count for a Lua script. See +// http://redis.io/commands/eval for information on scripts in Redis. +type Script struct { + keyCount int + src string + hash string +} + +// NewScript returns a new script object. If keyCount is greater than or equal +// to zero, then the count is automatically inserted in the EVAL command +// argument list. If keyCount is less than zero, then the application supplies +// the count as the first value in the keysAndArgs argument to the Do, Send and +// SendHash methods. +func NewScript(keyCount int, src string) *Script { + h := sha1.New() + io.WriteString(h, src) + return &Script{keyCount, src, hex.EncodeToString(h.Sum(nil))} +} + +func (s *Script) args(spec string, keysAndArgs []interface{}) []interface{} { + var args []interface{} + if s.keyCount < 0 { + args = make([]interface{}, 1+len(keysAndArgs)) + args[0] = spec + copy(args[1:], keysAndArgs) + } else { + args = make([]interface{}, 2+len(keysAndArgs)) + args[0] = spec + args[1] = s.keyCount + copy(args[2:], keysAndArgs) + } + return args +} + +// Do evaluates the script. Under the covers, Do optimistically evaluates the +// script using the EVALSHA command. If the command fails because the script is +// not loaded, then Do evaluates the script using the EVAL command (thus +// causing the script to load). +func (s *Script) Do(c Conn, keysAndArgs ...interface{}) (interface{}, error) { + v, err := c.Do("EVALSHA", s.args(s.hash, keysAndArgs)...) + if e, ok := err.(Error); ok && strings.HasPrefix(string(e), "NOSCRIPT ") { + v, err = c.Do("EVAL", s.args(s.src, keysAndArgs)...) + } + return v, err +} + +// SendHash evaluates the script without waiting for the reply. The script is +// evaluated with the EVALSHA command. The application must ensure that the +// script is loaded by a previous call to Send, Do or Load methods. +func (s *Script) SendHash(c Conn, keysAndArgs ...interface{}) error { + return c.Send("EVALSHA", s.args(s.hash, keysAndArgs)...) +} + +// Send evaluates the script without waiting for the reply. +func (s *Script) Send(c Conn, keysAndArgs ...interface{}) error { + return c.Send("EVAL", s.args(s.src, keysAndArgs)...) +} + +// Load loads the script without evaluating it. +func (s *Script) Load(c Conn) error { + _, err := c.Do("SCRIPT", "LOAD", s.src) + return err +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/.gitignore b/Godeps/_workspace/src/github.com/gin-gonic/gin/.gitignore new file mode 100644 index 0000000..9f48f14 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/.gitignore @@ -0,0 +1,4 @@ +Godeps/* +!Godeps/Godeps.json +coverage.out +count.out diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/.travis.yml b/Godeps/_workspace/src/github.com/gin-gonic/gin/.travis.yml new file mode 100644 index 0000000..695f0b7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/.travis.yml @@ -0,0 +1,22 @@ +language: go +sudo: false +go: + - 1.4 + - 1.4.2 + - tip + +script: + - go get golang.org/x/tools/cmd/cover + - go get github.com/mattn/goveralls + - go test -v -covermode=count -coverprofile=coverage.out + +after_success: + - goveralls -coverprofile=coverage.out -service=travis-ci -repotoken yFj7FrCeddvBzUaaCyG33jCLfWXeb93eA + +notifications: + webhooks: + urls: + - https://webhooks.gitter.im/e/acc2c57482e94b44f557 + on_success: change # options: [always|never|change] default: always + on_failure: always # options: [always|never|change] default: always + on_start: false # default: false diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/AUTHORS.md b/Godeps/_workspace/src/github.com/gin-gonic/gin/AUTHORS.md new file mode 100644 index 0000000..2feaf46 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/AUTHORS.md @@ -0,0 +1,229 @@ +List of all the awesome people working to make Gin the best Web Framework in Go. + + + +##gin 0.x series authors + +**Maintainer:** Manu Martinez-Almeida (@manucorporat), Javier Provecho (@javierprovecho) + +People and companies, who have contributed, in alphabetical order. + +**@858806258 (杰哥)** +- Fix typo in example + + +**@achedeuzot (Klemen Sever)** +- Fix newline debug printing + + +**@adammck (Adam Mckaig)** +- Add MIT license + + +**@AlexanderChen1989 (Alexander)** +- Typos in README + + +**@alexanderdidenko (Aleksandr Didenko)** +- Add support multipart/form-data + + +**@alexandernyquist (Alexander Nyquist)** +- Using template.Must to fix multiple return issue +- ★ Added support for OPTIONS verb +- ★ Setting response headers before calling WriteHeader +- Improved documentation for model binding +- ★ Added Content.Redirect() +- ★ Added tons of Unit tests + + +**@austinheap (Austin Heap)** +- Added travis CI integration + + +**@andredublin (Andre Dublin)** +- Fix typo in comment + + +**@bredov (Ludwig Valda Vasquez)** +- Fix html templating in debug mode + + +**@bluele (Jun Kimura)** +- Fixes code examples in README + + +**@chad-russell** +- ★ Support for serializing gin.H into XML + + +**@dickeyxxx (Jeff Dickey)** +- Typos in README +- Add example about serving static files + + +**@donileo (Adonis)** +- Add NoMethod handler + + +**@dutchcoders (DutchCoders)** +- ★ Fix security bug that allows client to spoof ip +- Fix typo. r.HTMLTemplates -> SetHTMLTemplate + + +**@el3ctro- (Joshua Loper)** +- Fix typo in example + + +**@ethankan (Ethan Kan)** +- Unsigned integers in binding + + +**(Evgeny Persienko)** +- Validate sub structures + + +**@frankbille (Frank Bille)** +- Add support for HTTP Realm Auth + + +**@fmd (Fareed Dudhia)** +- Fix typo. SetHTTPTemplate -> SetHTMLTemplate + + +**@ironiridis (Christopher Harrington)** +- Remove old reference + + +**@jammie-stackhouse (Jamie Stackhouse)** +- Add more shortcuts for router methods + + +**@jasonrhansen** +- Fix spelling and grammar errors in documentation + + +**@JasonSoft (Jason Lee)** +- Fix typo in comment + + +**@joiggama (Ignacio Galindo)** +- Add utf-8 charset header on renders + + +**@julienschmidt (Julien Schmidt)** +- gofmt the code examples + + +**@kelcecil (Kel Cecil)** +- Fix readme typo + + +**@kyledinh (Kyle Dinh)** +- Adds RunTLS() + + +**@LinusU (Linus Unnebäck)** +- Small fixes in README + + +**@loongmxbt (Saint Asky)** +- Fix typo in example + + +**@lucas-clemente (Lucas Clemente)** +- ★ work around path.Join removing trailing slashes from routes + + +**@mattn (Yasuhiro Matsumoto)** +- Improve color logger + + +**@mdigger (Dmitry Sedykh)** +- Fixes Form binding when content-type is x-www-form-urlencoded +- No repeat call c.Writer.Status() in gin.Logger +- Fixes Content-Type for json render + + +**@mirzac (Mirza Ceric)** +- Fix debug printing + + +**@mopemope (Yutaka Matsubara)** +- ★ Adds Godep support (Dependencies Manager) +- Fix variadic parameter in the flexible render API +- Fix Corrupted plain render +- Add Pluggable View Renderer Example + + +**@msemenistyi (Mykyta Semenistyi)** +- update Readme.md. Add code to String method + + +**@msoedov (Sasha Myasoedov)** +- ★ Adds tons of unit tests. + + +**@ngerakines (Nick Gerakines)** +- ★ Improves API, c.GET() doesn't panic +- Adds MustGet() method + + +**@r8k (Rajiv Kilaparti)** +- Fix Port usage in README. + + +**@rayrod2030 (Ray Rodriguez)** +- Fix typo in example + + +**@rns** +- Fix typo in example + + +**@RobAWilkinson (Robert Wilkinson)** +- Add example of forms and params + + +**@rogierlommers (Rogier Lommers)** +- Add updated static serve example + + +**@se77en (Damon Zhao)** +- Improve color logging + + +**@silasb (Silas Baronda)** +- Fixing quotes in README + + +**@SkuliOskarsson (Skuli Oskarsson)** +- Fixes some texts in README II + + +**@slimmy (Jimmy Pettersson)** +- Added messages for required bindings + + +**@smira (Andrey Smirnov)** +- Add support for ignored/unexported fields in binding + + +**@superalsrk (SRK.Lyu)** +- Update httprouter godeps + + +**@tebeka (Miki Tebeka)** +- Use net/http constants instead of numeric values + + +**@techjanitor** +- Update context.go reserved IPs + + +**@yosssi (Keiji Yoshida)** +- Fix link in README + + +**@yuyabee** +- Fixed README \ No newline at end of file diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/BENCHMARKS.md b/Godeps/_workspace/src/github.com/gin-gonic/gin/BENCHMARKS.md new file mode 100644 index 0000000..181f75b --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/BENCHMARKS.md @@ -0,0 +1,298 @@ +**Machine:** intel i7 ivy bridge quad-core. 8GB RAM. +**Date:** June 4th, 2015 +[https://github.com/gin-gonic/go-http-routing-benchmark](https://github.com/gin-gonic/go-http-routing-benchmark) + +``` +BenchmarkAce_Param 5000000 372 ns/op 32 B/op 1 allocs/op +BenchmarkBear_Param 1000000 1165 ns/op 424 B/op 5 allocs/op +BenchmarkBeego_Param 1000000 2440 ns/op 720 B/op 10 allocs/op +BenchmarkBone_Param 1000000 1067 ns/op 384 B/op 3 allocs/op +BenchmarkDenco_Param 5000000 240 ns/op 32 B/op 1 allocs/op +BenchmarkEcho_Param 10000000 130 ns/op 0 B/op 0 allocs/op +BenchmarkGin_Param 10000000 133 ns/op 0 B/op 0 allocs/op +BenchmarkGocraftWeb_Param 1000000 1826 ns/op 656 B/op 9 allocs/op +BenchmarkGoji_Param 2000000 957 ns/op 336 B/op 2 allocs/op +BenchmarkGoJsonRest_Param 1000000 2021 ns/op 657 B/op 14 allocs/op +BenchmarkGoRestful_Param 200000 8825 ns/op 2496 B/op 31 allocs/op +BenchmarkGorillaMux_Param 500000 3340 ns/op 784 B/op 9 allocs/op +BenchmarkHttpRouter_Param 10000000 152 ns/op 32 B/op 1 allocs/op +BenchmarkHttpTreeMux_Param 2000000 717 ns/op 336 B/op 2 allocs/op +BenchmarkKocha_Param 3000000 423 ns/op 56 B/op 3 allocs/op +BenchmarkMacaron_Param 1000000 3410 ns/op 1104 B/op 11 allocs/op +BenchmarkMartini_Param 200000 7101 ns/op 1152 B/op 12 allocs/op +BenchmarkPat_Param 1000000 2040 ns/op 656 B/op 14 allocs/op +BenchmarkPossum_Param 1000000 2048 ns/op 624 B/op 7 allocs/op +BenchmarkR2router_Param 1000000 1144 ns/op 432 B/op 6 allocs/op +BenchmarkRevel_Param 200000 6725 ns/op 1672 B/op 28 allocs/op +BenchmarkRivet_Param 1000000 1121 ns/op 464 B/op 5 allocs/op +BenchmarkTango_Param 1000000 1479 ns/op 256 B/op 10 allocs/op +BenchmarkTigerTonic_Param 1000000 3393 ns/op 992 B/op 19 allocs/op +BenchmarkTraffic_Param 300000 5525 ns/op 1984 B/op 23 allocs/op +BenchmarkVulcan_Param 2000000 924 ns/op 98 B/op 3 allocs/op +BenchmarkZeus_Param 1000000 1084 ns/op 368 B/op 3 allocs/op +BenchmarkAce_Param5 3000000 614 ns/op 160 B/op 1 allocs/op +BenchmarkBear_Param5 1000000 1617 ns/op 469 B/op 5 allocs/op +BenchmarkBeego_Param5 1000000 3373 ns/op 992 B/op 13 allocs/op +BenchmarkBone_Param5 1000000 1478 ns/op 432 B/op 3 allocs/op +BenchmarkDenco_Param5 3000000 570 ns/op 160 B/op 1 allocs/op +BenchmarkEcho_Param5 5000000 256 ns/op 0 B/op 0 allocs/op +BenchmarkGin_Param5 10000000 222 ns/op 0 B/op 0 allocs/op +BenchmarkGocraftWeb_Param5 1000000 2789 ns/op 928 B/op 12 allocs/op +BenchmarkGoji_Param5 1000000 1287 ns/op 336 B/op 2 allocs/op +BenchmarkGoJsonRest_Param5 1000000 3670 ns/op 1105 B/op 17 allocs/op +BenchmarkGoRestful_Param5 200000 10756 ns/op 2672 B/op 31 allocs/op +BenchmarkGorillaMux_Param5 300000 5543 ns/op 912 B/op 9 allocs/op +BenchmarkHttpRouter_Param5 5000000 403 ns/op 160 B/op 1 allocs/op +BenchmarkHttpTreeMux_Param5 1000000 1089 ns/op 336 B/op 2 allocs/op +BenchmarkKocha_Param5 1000000 1682 ns/op 440 B/op 10 allocs/op +BenchmarkMacaron_Param5 300000 4596 ns/op 1376 B/op 14 allocs/op +BenchmarkMartini_Param5 100000 15703 ns/op 1280 B/op 12 allocs/op +BenchmarkPat_Param5 300000 5320 ns/op 1008 B/op 42 allocs/op +BenchmarkPossum_Param5 1000000 2155 ns/op 624 B/op 7 allocs/op +BenchmarkR2router_Param5 1000000 1559 ns/op 432 B/op 6 allocs/op +BenchmarkRevel_Param5 200000 8184 ns/op 2024 B/op 35 allocs/op +BenchmarkRivet_Param5 1000000 1914 ns/op 528 B/op 9 allocs/op +BenchmarkTango_Param5 1000000 3280 ns/op 944 B/op 18 allocs/op +BenchmarkTigerTonic_Param5 200000 11638 ns/op 2519 B/op 53 allocs/op +BenchmarkTraffic_Param5 200000 8941 ns/op 2280 B/op 31 allocs/op +BenchmarkVulcan_Param5 1000000 1279 ns/op 98 B/op 3 allocs/op +BenchmarkZeus_Param5 1000000 1574 ns/op 416 B/op 3 allocs/op +BenchmarkAce_Param20 1000000 1528 ns/op 640 B/op 1 allocs/op +BenchmarkBear_Param20 300000 4906 ns/op 1633 B/op 5 allocs/op +BenchmarkBeego_Param20 200000 10529 ns/op 3868 B/op 17 allocs/op +BenchmarkBone_Param20 300000 7362 ns/op 2539 B/op 5 allocs/op +BenchmarkDenco_Param20 1000000 1884 ns/op 640 B/op 1 allocs/op +BenchmarkEcho_Param20 2000000 689 ns/op 0 B/op 0 allocs/op +BenchmarkGin_Param20 3000000 545 ns/op 0 B/op 0 allocs/op +BenchmarkGocraftWeb_Param20 200000 9437 ns/op 3804 B/op 16 allocs/op +BenchmarkGoji_Param20 500000 3987 ns/op 1246 B/op 2 allocs/op +BenchmarkGoJsonRest_Param20 100000 12799 ns/op 4492 B/op 21 allocs/op +BenchmarkGoRestful_Param20 100000 19451 ns/op 5244 B/op 33 allocs/op +BenchmarkGorillaMux_Param20 100000 12456 ns/op 3275 B/op 11 allocs/op +BenchmarkHttpRouter_Param20 1000000 1333 ns/op 640 B/op 1 allocs/op +BenchmarkHttpTreeMux_Param20 300000 6490 ns/op 2187 B/op 4 allocs/op +BenchmarkKocha_Param20 300000 5335 ns/op 1808 B/op 27 allocs/op +BenchmarkMacaron_Param20 200000 11325 ns/op 4252 B/op 18 allocs/op +BenchmarkMartini_Param20 20000 64419 ns/op 3644 B/op 14 allocs/op +BenchmarkPat_Param20 50000 24672 ns/op 4888 B/op 151 allocs/op +BenchmarkPossum_Param20 1000000 2085 ns/op 624 B/op 7 allocs/op +BenchmarkR2router_Param20 300000 6809 ns/op 2283 B/op 8 allocs/op +BenchmarkRevel_Param20 100000 16600 ns/op 5551 B/op 54 allocs/op +BenchmarkRivet_Param20 200000 8428 ns/op 2620 B/op 26 allocs/op +BenchmarkTango_Param20 100000 16302 ns/op 8224 B/op 48 allocs/op +BenchmarkTigerTonic_Param20 30000 46828 ns/op 10538 B/op 178 allocs/op +BenchmarkTraffic_Param20 50000 28871 ns/op 7998 B/op 66 allocs/op +BenchmarkVulcan_Param20 1000000 2267 ns/op 98 B/op 3 allocs/op +BenchmarkZeus_Param20 300000 6828 ns/op 2507 B/op 5 allocs/op +BenchmarkAce_ParamWrite 3000000 502 ns/op 40 B/op 2 allocs/op +BenchmarkBear_ParamWrite 1000000 1303 ns/op 424 B/op 5 allocs/op +BenchmarkBeego_ParamWrite 1000000 2489 ns/op 728 B/op 11 allocs/op +BenchmarkBone_ParamWrite 1000000 1181 ns/op 384 B/op 3 allocs/op +BenchmarkDenco_ParamWrite 5000000 315 ns/op 32 B/op 1 allocs/op +BenchmarkEcho_ParamWrite 10000000 237 ns/op 8 B/op 1 allocs/op +BenchmarkGin_ParamWrite 5000000 336 ns/op 0 B/op 0 allocs/op +BenchmarkGocraftWeb_ParamWrite 1000000 2079 ns/op 664 B/op 10 allocs/op +BenchmarkGoji_ParamWrite 1000000 1092 ns/op 336 B/op 2 allocs/op +BenchmarkGoJsonRest_ParamWrite 1000000 3329 ns/op 1136 B/op 19 allocs/op +BenchmarkGoRestful_ParamWrite 200000 9273 ns/op 2504 B/op 32 allocs/op +BenchmarkGorillaMux_ParamWrite 500000 3919 ns/op 792 B/op 10 allocs/op +BenchmarkHttpRouter_ParamWrite 10000000 223 ns/op 32 B/op 1 allocs/op +BenchmarkHttpTreeMux_ParamWrite 2000000 788 ns/op 336 B/op 2 allocs/op +BenchmarkKocha_ParamWrite 3000000 549 ns/op 56 B/op 3 allocs/op +BenchmarkMacaron_ParamWrite 500000 4558 ns/op 1216 B/op 16 allocs/op +BenchmarkMartini_ParamWrite 200000 8850 ns/op 1256 B/op 16 allocs/op +BenchmarkPat_ParamWrite 500000 3679 ns/op 1088 B/op 19 allocs/op +BenchmarkPossum_ParamWrite 1000000 2114 ns/op 624 B/op 7 allocs/op +BenchmarkR2router_ParamWrite 1000000 1320 ns/op 432 B/op 6 allocs/op +BenchmarkRevel_ParamWrite 200000 8048 ns/op 2128 B/op 33 allocs/op +BenchmarkRivet_ParamWrite 1000000 1393 ns/op 472 B/op 6 allocs/op +BenchmarkTango_ParamWrite 2000000 819 ns/op 136 B/op 5 allocs/op +BenchmarkTigerTonic_ParamWrite 300000 5860 ns/op 1440 B/op 25 allocs/op +BenchmarkTraffic_ParamWrite 200000 7429 ns/op 2400 B/op 27 allocs/op +BenchmarkVulcan_ParamWrite 2000000 972 ns/op 98 B/op 3 allocs/op +BenchmarkZeus_ParamWrite 1000000 1226 ns/op 368 B/op 3 allocs/op +BenchmarkAce_GithubStatic 5000000 294 ns/op 0 B/op 0 allocs/op +BenchmarkBear_GithubStatic 3000000 575 ns/op 88 B/op 3 allocs/op +BenchmarkBeego_GithubStatic 1000000 1561 ns/op 368 B/op 7 allocs/op +BenchmarkBone_GithubStatic 200000 12301 ns/op 2880 B/op 60 allocs/op +BenchmarkDenco_GithubStatic 20000000 74.6 ns/op 0 B/op 0 allocs/op +BenchmarkEcho_GithubStatic 10000000 176 ns/op 0 B/op 0 allocs/op +BenchmarkGin_GithubStatic 10000000 159 ns/op 0 B/op 0 allocs/op +BenchmarkGocraftWeb_GithubStatic 1000000 1116 ns/op 304 B/op 6 allocs/op +BenchmarkGoji_GithubStatic 5000000 413 ns/op 0 B/op 0 allocs/op +BenchmarkGoRestful_GithubStatic 30000 55200 ns/op 3520 B/op 36 allocs/op +BenchmarkGoJsonRest_GithubStatic 1000000 1504 ns/op 337 B/op 12 allocs/op +BenchmarkGorillaMux_GithubStatic 100000 23620 ns/op 464 B/op 8 allocs/op +BenchmarkHttpRouter_GithubStatic 20000000 78.3 ns/op 0 B/op 0 allocs/op +BenchmarkHttpTreeMux_GithubStatic 20000000 84.9 ns/op 0 B/op 0 allocs/op +BenchmarkKocha_GithubStatic 20000000 111 ns/op 0 B/op 0 allocs/op +BenchmarkMacaron_GithubStatic 1000000 2686 ns/op 752 B/op 8 allocs/op +BenchmarkMartini_GithubStatic 100000 22244 ns/op 832 B/op 11 allocs/op +BenchmarkPat_GithubStatic 100000 13278 ns/op 3648 B/op 76 allocs/op +BenchmarkPossum_GithubStatic 1000000 1429 ns/op 480 B/op 4 allocs/op +BenchmarkR2router_GithubStatic 2000000 726 ns/op 144 B/op 5 allocs/op +BenchmarkRevel_GithubStatic 300000 6271 ns/op 1288 B/op 25 allocs/op +BenchmarkRivet_GithubStatic 3000000 474 ns/op 112 B/op 2 allocs/op +BenchmarkTango_GithubStatic 1000000 1842 ns/op 256 B/op 10 allocs/op +BenchmarkTigerTonic_GithubStatic 5000000 361 ns/op 48 B/op 1 allocs/op +BenchmarkTraffic_GithubStatic 30000 47197 ns/op 18920 B/op 149 allocs/op +BenchmarkVulcan_GithubStatic 1000000 1415 ns/op 98 B/op 3 allocs/op +BenchmarkZeus_GithubStatic 1000000 2522 ns/op 512 B/op 11 allocs/op +BenchmarkAce_GithubParam 3000000 578 ns/op 96 B/op 1 allocs/op +BenchmarkBear_GithubParam 1000000 1592 ns/op 464 B/op 5 allocs/op +BenchmarkBeego_GithubParam 1000000 2891 ns/op 784 B/op 11 allocs/op +BenchmarkBone_GithubParam 300000 6440 ns/op 1456 B/op 16 allocs/op +BenchmarkDenco_GithubParam 3000000 514 ns/op 128 B/op 1 allocs/op +BenchmarkEcho_GithubParam 5000000 292 ns/op 0 B/op 0 allocs/op +BenchmarkGin_GithubParam 10000000 242 ns/op 0 B/op 0 allocs/op +BenchmarkGocraftWeb_GithubParam 1000000 2343 ns/op 720 B/op 10 allocs/op +BenchmarkGoji_GithubParam 1000000 1566 ns/op 336 B/op 2 allocs/op +BenchmarkGoJsonRest_GithubParam 1000000 2828 ns/op 721 B/op 15 allocs/op +BenchmarkGoRestful_GithubParam 10000 177711 ns/op 2816 B/op 35 allocs/op +BenchmarkGorillaMux_GithubParam 100000 13591 ns/op 816 B/op 9 allocs/op +BenchmarkHttpRouter_GithubParam 5000000 352 ns/op 96 B/op 1 allocs/op +BenchmarkHttpTreeMux_GithubParam 2000000 973 ns/op 336 B/op 2 allocs/op +BenchmarkKocha_GithubParam 2000000 889 ns/op 128 B/op 5 allocs/op +BenchmarkMacaron_GithubParam 500000 4047 ns/op 1168 B/op 12 allocs/op +BenchmarkMartini_GithubParam 50000 28982 ns/op 1184 B/op 12 allocs/op +BenchmarkPat_GithubParam 200000 8747 ns/op 2480 B/op 56 allocs/op +BenchmarkPossum_GithubParam 1000000 2158 ns/op 624 B/op 7 allocs/op +BenchmarkR2router_GithubParam 1000000 1352 ns/op 432 B/op 6 allocs/op +BenchmarkRevel_GithubParam 200000 7673 ns/op 1784 B/op 30 allocs/op +BenchmarkRivet_GithubParam 1000000 1573 ns/op 480 B/op 6 allocs/op +BenchmarkTango_GithubParam 1000000 2418 ns/op 480 B/op 13 allocs/op +BenchmarkTigerTonic_GithubParam 300000 6048 ns/op 1440 B/op 28 allocs/op +BenchmarkTraffic_GithubParam 100000 20143 ns/op 6024 B/op 55 allocs/op +BenchmarkVulcan_GithubParam 1000000 2224 ns/op 98 B/op 3 allocs/op +BenchmarkZeus_GithubParam 500000 4156 ns/op 1312 B/op 12 allocs/op +BenchmarkAce_GithubAll 10000 109482 ns/op 13792 B/op 167 allocs/op +BenchmarkBear_GithubAll 10000 287490 ns/op 79952 B/op 943 allocs/op +BenchmarkBeego_GithubAll 3000 562184 ns/op 146272 B/op 2092 allocs/op +BenchmarkBone_GithubAll 500 2578716 ns/op 648016 B/op 8119 allocs/op +BenchmarkDenco_GithubAll 20000 94955 ns/op 20224 B/op 167 allocs/op +BenchmarkEcho_GithubAll 30000 58705 ns/op 0 B/op 0 allocs/op +BenchmarkGin_GithubAll 30000 50991 ns/op 0 B/op 0 allocs/op +BenchmarkGocraftWeb_GithubAll 5000 449648 ns/op 133280 B/op 1889 allocs/op +BenchmarkGoji_GithubAll 2000 689748 ns/op 56113 B/op 334 allocs/op +BenchmarkGoJsonRest_GithubAll 5000 537769 ns/op 135995 B/op 2940 allocs/op +BenchmarkGoRestful_GithubAll 100 18410628 ns/op 797236 B/op 7725 allocs/op +BenchmarkGorillaMux_GithubAll 200 8036360 ns/op 153137 B/op 1791 allocs/op +BenchmarkHttpRouter_GithubAll 20000 63506 ns/op 13792 B/op 167 allocs/op +BenchmarkHttpTreeMux_GithubAll 10000 165927 ns/op 56112 B/op 334 allocs/op +BenchmarkKocha_GithubAll 10000 171362 ns/op 23304 B/op 843 allocs/op +BenchmarkMacaron_GithubAll 2000 817008 ns/op 224960 B/op 2315 allocs/op +BenchmarkMartini_GithubAll 100 12609209 ns/op 237952 B/op 2686 allocs/op +BenchmarkPat_GithubAll 300 4830398 ns/op 1504101 B/op 32222 allocs/op +BenchmarkPossum_GithubAll 10000 301716 ns/op 97440 B/op 812 allocs/op +BenchmarkR2router_GithubAll 10000 270691 ns/op 77328 B/op 1182 allocs/op +BenchmarkRevel_GithubAll 1000 1491919 ns/op 345553 B/op 5918 allocs/op +BenchmarkRivet_GithubAll 10000 283860 ns/op 84272 B/op 1079 allocs/op +BenchmarkTango_GithubAll 5000 473821 ns/op 87078 B/op 2470 allocs/op +BenchmarkTigerTonic_GithubAll 2000 1120131 ns/op 241088 B/op 6052 allocs/op +BenchmarkTraffic_GithubAll 200 8708979 ns/op 2664762 B/op 22390 allocs/op +BenchmarkVulcan_GithubAll 5000 353392 ns/op 19894 B/op 609 allocs/op +BenchmarkZeus_GithubAll 2000 944234 ns/op 300688 B/op 2648 allocs/op +BenchmarkAce_GPlusStatic 5000000 251 ns/op 0 B/op 0 allocs/op +BenchmarkBear_GPlusStatic 3000000 415 ns/op 72 B/op 3 allocs/op +BenchmarkBeego_GPlusStatic 1000000 1416 ns/op 352 B/op 7 allocs/op +BenchmarkBone_GPlusStatic 10000000 192 ns/op 32 B/op 1 allocs/op +BenchmarkDenco_GPlusStatic 30000000 47.6 ns/op 0 B/op 0 allocs/op +BenchmarkEcho_GPlusStatic 10000000 131 ns/op 0 B/op 0 allocs/op +BenchmarkGin_GPlusStatic 10000000 131 ns/op 0 B/op 0 allocs/op +BenchmarkGocraftWeb_GPlusStatic 1000000 1035 ns/op 288 B/op 6 allocs/op +BenchmarkGoji_GPlusStatic 5000000 304 ns/op 0 B/op 0 allocs/op +BenchmarkGoJsonRest_GPlusStatic 1000000 1286 ns/op 337 B/op 12 allocs/op +BenchmarkGoRestful_GPlusStatic 200000 9649 ns/op 2160 B/op 30 allocs/op +BenchmarkGorillaMux_GPlusStatic 1000000 2346 ns/op 464 B/op 8 allocs/op +BenchmarkHttpRouter_GPlusStatic 30000000 42.7 ns/op 0 B/op 0 allocs/op +BenchmarkHttpTreeMux_GPlusStatic 30000000 49.5 ns/op 0 B/op 0 allocs/op +BenchmarkKocha_GPlusStatic 20000000 74.8 ns/op 0 B/op 0 allocs/op +BenchmarkMacaron_GPlusStatic 1000000 2520 ns/op 736 B/op 8 allocs/op +BenchmarkMartini_GPlusStatic 300000 5310 ns/op 832 B/op 11 allocs/op +BenchmarkPat_GPlusStatic 5000000 398 ns/op 96 B/op 2 allocs/op +BenchmarkPossum_GPlusStatic 1000000 1434 ns/op 480 B/op 4 allocs/op +BenchmarkR2router_GPlusStatic 2000000 646 ns/op 144 B/op 5 allocs/op +BenchmarkRevel_GPlusStatic 300000 6172 ns/op 1272 B/op 25 allocs/op +BenchmarkRivet_GPlusStatic 3000000 444 ns/op 112 B/op 2 allocs/op +BenchmarkTango_GPlusStatic 1000000 1400 ns/op 208 B/op 10 allocs/op +BenchmarkTigerTonic_GPlusStatic 10000000 213 ns/op 32 B/op 1 allocs/op +BenchmarkTraffic_GPlusStatic 1000000 3091 ns/op 1208 B/op 16 allocs/op +BenchmarkVulcan_GPlusStatic 2000000 863 ns/op 98 B/op 3 allocs/op +BenchmarkZeus_GPlusStatic 10000000 237 ns/op 16 B/op 1 allocs/op +BenchmarkAce_GPlusParam 3000000 435 ns/op 64 B/op 1 allocs/op +BenchmarkBear_GPlusParam 1000000 1205 ns/op 448 B/op 5 allocs/op +BenchmarkBeego_GPlusParam 1000000 2494 ns/op 720 B/op 10 allocs/op +BenchmarkBone_GPlusParam 1000000 1126 ns/op 384 B/op 3 allocs/op +BenchmarkDenco_GPlusParam 5000000 325 ns/op 64 B/op 1 allocs/op +BenchmarkEcho_GPlusParam 10000000 168 ns/op 0 B/op 0 allocs/op +BenchmarkGin_GPlusParam 10000000 170 ns/op 0 B/op 0 allocs/op +BenchmarkGocraftWeb_GPlusParam 1000000 1895 ns/op 656 B/op 9 allocs/op +BenchmarkGoji_GPlusParam 1000000 1071 ns/op 336 B/op 2 allocs/op +BenchmarkGoJsonRest_GPlusParam 1000000 2282 ns/op 657 B/op 14 allocs/op +BenchmarkGoRestful_GPlusParam 100000 19400 ns/op 2560 B/op 33 allocs/op +BenchmarkGorillaMux_GPlusParam 500000 5001 ns/op 784 B/op 9 allocs/op +BenchmarkHttpRouter_GPlusParam 10000000 240 ns/op 64 B/op 1 allocs/op +BenchmarkHttpTreeMux_GPlusParam 2000000 797 ns/op 336 B/op 2 allocs/op +BenchmarkKocha_GPlusParam 3000000 505 ns/op 56 B/op 3 allocs/op +BenchmarkMacaron_GPlusParam 1000000 3668 ns/op 1104 B/op 11 allocs/op +BenchmarkMartini_GPlusParam 200000 10672 ns/op 1152 B/op 12 allocs/op +BenchmarkPat_GPlusParam 1000000 2376 ns/op 704 B/op 14 allocs/op +BenchmarkPossum_GPlusParam 1000000 2090 ns/op 624 B/op 7 allocs/op +BenchmarkR2router_GPlusParam 1000000 1233 ns/op 432 B/op 6 allocs/op +BenchmarkRevel_GPlusParam 200000 6778 ns/op 1704 B/op 28 allocs/op +BenchmarkRivet_GPlusParam 1000000 1279 ns/op 464 B/op 5 allocs/op +BenchmarkTango_GPlusParam 1000000 1981 ns/op 272 B/op 10 allocs/op +BenchmarkTigerTonic_GPlusParam 500000 3893 ns/op 1064 B/op 19 allocs/op +BenchmarkTraffic_GPlusParam 200000 6585 ns/op 2000 B/op 23 allocs/op +BenchmarkVulcan_GPlusParam 1000000 1233 ns/op 98 B/op 3 allocs/op +BenchmarkZeus_GPlusParam 1000000 1350 ns/op 368 B/op 3 allocs/op +BenchmarkAce_GPlus2Params 3000000 512 ns/op 64 B/op 1 allocs/op +BenchmarkBear_GPlus2Params 1000000 1564 ns/op 464 B/op 5 allocs/op +BenchmarkBeego_GPlus2Params 1000000 3043 ns/op 784 B/op 11 allocs/op +BenchmarkBone_GPlus2Params 1000000 3152 ns/op 736 B/op 7 allocs/op +BenchmarkDenco_GPlus2Params 3000000 431 ns/op 64 B/op 1 allocs/op +BenchmarkEcho_GPlus2Params 5000000 247 ns/op 0 B/op 0 allocs/op +BenchmarkGin_GPlus2Params 10000000 219 ns/op 0 B/op 0 allocs/op +BenchmarkGocraftWeb_GPlus2Params 1000000 2363 ns/op 720 B/op 10 allocs/op +BenchmarkGoji_GPlus2Params 1000000 1540 ns/op 336 B/op 2 allocs/op +BenchmarkGoJsonRest_GPlus2Params 1000000 2872 ns/op 721 B/op 15 allocs/op +BenchmarkGoRestful_GPlus2Params 100000 23030 ns/op 2720 B/op 35 allocs/op +BenchmarkGorillaMux_GPlus2Params 200000 10516 ns/op 816 B/op 9 allocs/op +BenchmarkHttpRouter_GPlus2Params 5000000 273 ns/op 64 B/op 1 allocs/op +BenchmarkHttpTreeMux_GPlus2Params 2000000 939 ns/op 336 B/op 2 allocs/op +BenchmarkKocha_GPlus2Params 2000000 844 ns/op 128 B/op 5 allocs/op +BenchmarkMacaron_GPlus2Params 500000 3914 ns/op 1168 B/op 12 allocs/op +BenchmarkMartini_GPlus2Params 50000 35759 ns/op 1280 B/op 16 allocs/op +BenchmarkPat_GPlus2Params 200000 7089 ns/op 2304 B/op 41 allocs/op +BenchmarkPossum_GPlus2Params 1000000 2093 ns/op 624 B/op 7 allocs/op +BenchmarkR2router_GPlus2Params 1000000 1320 ns/op 432 B/op 6 allocs/op +BenchmarkRevel_GPlus2Params 200000 7351 ns/op 1800 B/op 30 allocs/op +BenchmarkRivet_GPlus2Params 1000000 1485 ns/op 480 B/op 6 allocs/op +BenchmarkTango_GPlus2Params 1000000 2111 ns/op 448 B/op 12 allocs/op +BenchmarkTigerTonic_GPlus2Params 300000 6271 ns/op 1528 B/op 28 allocs/op +BenchmarkTraffic_GPlus2Params 100000 14886 ns/op 3312 B/op 34 allocs/op +BenchmarkVulcan_GPlus2Params 1000000 1883 ns/op 98 B/op 3 allocs/op +BenchmarkZeus_GPlus2Params 1000000 2686 ns/op 784 B/op 6 allocs/op +BenchmarkAce_GPlusAll 300000 5912 ns/op 640 B/op 11 allocs/op +BenchmarkBear_GPlusAll 100000 16448 ns/op 5072 B/op 61 allocs/op +BenchmarkBeego_GPlusAll 50000 32916 ns/op 8976 B/op 129 allocs/op +BenchmarkBone_GPlusAll 50000 25836 ns/op 6992 B/op 76 allocs/op +BenchmarkDenco_GPlusAll 500000 4462 ns/op 672 B/op 11 allocs/op +BenchmarkEcho_GPlusAll 500000 2806 ns/op 0 B/op 0 allocs/op +BenchmarkGin_GPlusAll 500000 2579 ns/op 0 B/op 0 allocs/op +BenchmarkGocraftWeb_GPlusAll 50000 25223 ns/op 8144 B/op 116 allocs/op +BenchmarkGoji_GPlusAll 100000 14237 ns/op 3696 B/op 22 allocs/op +BenchmarkGoJsonRest_GPlusAll 50000 29227 ns/op 8221 B/op 183 allocs/op +BenchmarkGoRestful_GPlusAll 10000 203144 ns/op 36064 B/op 441 allocs/op +BenchmarkGorillaMux_GPlusAll 20000 80906 ns/op 9712 B/op 115 allocs/op +BenchmarkHttpRouter_GPlusAll 500000 3040 ns/op 640 B/op 11 allocs/op +BenchmarkHttpTreeMux_GPlusAll 200000 9627 ns/op 3696 B/op 22 allocs/op +BenchmarkKocha_GPlusAll 200000 8108 ns/op 976 B/op 43 allocs/op +BenchmarkMacaron_GPlusAll 30000 48083 ns/op 13968 B/op 142 allocs/op +BenchmarkMartini_GPlusAll 10000 196978 ns/op 15072 B/op 178 allocs/op +BenchmarkPat_GPlusAll 30000 58865 ns/op 16880 B/op 343 allocs/op +BenchmarkPossum_GPlusAll 100000 19685 ns/op 6240 B/op 52 allocs/op +BenchmarkR2router_GPlusAll 100000 16251 ns/op 5040 B/op 76 allocs/op +BenchmarkRevel_GPlusAll 20000 93489 ns/op 21656 B/op 368 allocs/op +BenchmarkRivet_GPlusAll 100000 16907 ns/op 5408 B/op 64 allocs/op +``` \ No newline at end of file diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/CHANGELOG.md b/Godeps/_workspace/src/github.com/gin-gonic/gin/CHANGELOG.md new file mode 100644 index 0000000..82f1bea --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/CHANGELOG.md @@ -0,0 +1,150 @@ +#CHANGELOG + +###Gin 1.0rc2 (...) + +- [PERFORMANCE] Fast path for writing Content-Type. +- [PERFORMANCE] Much faster 404 routing +- [PERFORMANCE] Allocation optimizations +- [PERFORMANCE] Faster root tree lookup +- [PERFORMANCE] Zero overhead, String() and JSON() rendering. +- [PERFORMANCE] Faster ClientIP parsing +- [PERFORMANCE] Much faster SSE implementation +- [NEW] Benchmarks suite +- [NEW] Bind validation can be disabled and replaced with custom validators. +- [NEW] More flexible HTML render +- [NEW] Multipart and PostForm bindings +- [NEW] Adds method to return all the registered routes +- [NEW] Context.HandlerName() returns the main handler's name +- [NEW] Adds Error.IsType() helper +- [FIX] Binding multipart form +- [FIX] Integration tests +- [FIX] Crash when binding non struct object in Context. +- [FIX] RunTLS() implementation +- [FIX] Logger() unit tests +- [FIX] Adds SetHTMLTemplate() warning +- [FIX] Context.IsAborted() +- [FIX] More unit tests +- [FIX] JSON, XML, HTML renders accept custom content-types +- [FIX] gin.AbortIndex is unexported +- [FIX] Better approach to avoid directory listing in StaticFS() +- [FIX] Context.ClientIP() always returns the IP with trimmed spaces. +- [FIX] Better warning when running in debug mode. +- [FIX] Google App Engine integration. debugPrint does not use os.Stdout +- [FIX] Fixes integer overflow in error type +- [FIX] Error implements the json.Marshaller interface +- [FIX] MIT license in every file + + +###Gin 1.0rc1 (May 22, 2015) + +- [PERFORMANCE] Zero allocation router +- [PERFORMANCE] Faster JSON, XML and text rendering +- [PERFORMANCE] Custom hand optimized HttpRouter for Gin +- [PERFORMANCE] Misc code optimizations. Inlining, tail call optimizations +- [NEW] Built-in support for golang.org/x/net/context +- [NEW] Any(path, handler). Create a route that matches any path +- [NEW] Refactored rendering pipeline (faster and static typeded) +- [NEW] Refactored errors API +- [NEW] IndentedJSON() prints pretty JSON +- [NEW] Added gin.DefaultWriter +- [NEW] UNIX socket support +- [NEW] RouterGroup.BasePath is exposed +- [NEW] JSON validation using go-validate-yourself (very powerful options) +- [NEW] Completed suite of unit tests +- [NEW] HTTP streaming with c.Stream() +- [NEW] StaticFile() creates a router for serving just one file. +- [NEW] StaticFS() has an option to disable directory listing. +- [NEW] StaticFS() for serving static files through virtual filesystems +- [NEW] Server-Sent Events native support +- [NEW] WrapF() and WrapH() helpers for wrapping http.HandlerFunc and http.Handler +- [NEW] Added LoggerWithWriter() middleware +- [NEW] Added RecoveryWithWriter() middleware +- [NEW] Added DefaultPostFormValue() +- [NEW] Added DefaultFormValue() +- [NEW] Added DefaultParamValue() +- [FIX] BasicAuth() when using custom realm +- [FIX] Bug when serving static files in nested routing group +- [FIX] Redirect using built-in http.Redirect() +- [FIX] Logger when printing the requested path +- [FIX] Documentation typos +- [FIX] Context.Engine renamed to Context.engine +- [FIX] Better debugging messages +- [FIX] ErrorLogger +- [FIX] Debug HTTP render +- [FIX] Refactored binding and render modules +- [FIX] Refactored Context initialization +- [FIX] Refactored BasicAuth() +- [FIX] NoMethod/NoRoute handlers +- [FIX] Hijacking http +- [FIX] Better support for Google App Engine (using log instead of fmt) + + +###Gin 0.6 (Mar 9, 2015) + +- [NEW] Support multipart/form-data +- [NEW] NoMethod handler +- [NEW] Validate sub structures +- [NEW] Support for HTTP Realm Auth +- [FIX] Unsigned integers in binding +- [FIX] Improve color logger + + +###Gin 0.5 (Feb 7, 2015) + +- [NEW] Content Negotiation +- [FIX] Solved security bug that allow a client to spoof ip +- [FIX] Fix unexported/ignored fields in binding + + +###Gin 0.4 (Aug 21, 2014) + +- [NEW] Development mode +- [NEW] Unit tests +- [NEW] Add Content.Redirect() +- [FIX] Deferring WriteHeader() +- [FIX] Improved documentation for model binding + + +###Gin 0.3 (Jul 18, 2014) + +- [PERFORMANCE] Normal log and error log are printed in the same call. +- [PERFORMANCE] Improve performance of NoRouter() +- [PERFORMANCE] Improve context's memory locality, reduce CPU cache faults. +- [NEW] Flexible rendering API +- [NEW] Add Context.File() +- [NEW] Add shorcut RunTLS() for http.ListenAndServeTLS +- [FIX] Rename NotFound404() to NoRoute() +- [FIX] Errors in context are purged +- [FIX] Adds HEAD method in Static file serving +- [FIX] Refactors Static() file serving +- [FIX] Using keyed initialization to fix app-engine integration +- [FIX] Can't unmarshal JSON array, #63 +- [FIX] Renaming Context.Req to Context.Request +- [FIX] Check application/x-www-form-urlencoded when parsing form + + +###Gin 0.2b (Jul 08, 2014) +- [PERFORMANCE] Using sync.Pool to allocatio/gc overhead +- [NEW] Travis CI integration +- [NEW] Completely new logger +- [NEW] New API for serving static files. gin.Static() +- [NEW] gin.H() can be serialized into XML +- [NEW] Typed errors. Errors can be typed. Internet/external/custom. +- [NEW] Support for Godeps +- [NEW] Travis/Godocs badges in README +- [NEW] New Bind() and BindWith() methods for parsing request body. +- [NEW] Add Content.Copy() +- [NEW] Add context.LastError() +- [NEW] Add shorcut for OPTIONS HTTP method +- [FIX] Tons of README fixes +- [FIX] Header is written before body +- [FIX] BasicAuth() and changes API a little bit +- [FIX] Recovery() middleware only prints panics +- [FIX] Context.Get() does not panic anymore. Use MustGet() instead. +- [FIX] Multiple http.WriteHeader() in NotFound handlers +- [FIX] Engine.Run() panics if http server can't be setted up +- [FIX] Crash when route path doesn't start with '/' +- [FIX] Do not update header when status code is negative +- [FIX] Setting response headers before calling WriteHeader in context.String() +- [FIX] Add MIT license +- [FIX] Changes behaviour of ErrorLogger() and Logger() diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/LICENSE b/Godeps/_workspace/src/github.com/gin-gonic/gin/LICENSE new file mode 100644 index 0000000..1ff7f37 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2014 Manuel Martínez-Almeida + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/README.md b/Godeps/_workspace/src/github.com/gin-gonic/gin/README.md new file mode 100644 index 0000000..2a111d2 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/README.md @@ -0,0 +1,677 @@ + +#Gin Web Framework + +[![Build Status](https://travis-ci.org/gin-gonic/gin.svg)](https://travis-ci.org/gin-gonic/gin) +[![Coverage Status](https://coveralls.io/repos/gin-gonic/gin/badge.svg?branch=master)](https://coveralls.io/r/gin-gonic/gin?branch=master) +[![GoDoc](https://godoc.org/github.com/gin-gonic/gin?status.svg)](https://godoc.org/github.com/gin-gonic/gin) +[![Join the chat at https://gitter.im/gin-gonic/gin](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/gin-gonic/gin?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) + +Gin is a web framework written in Golang. It features a martini-like API with much better performance, up to 40 times faster thanks to [httprouter](https://github.com/julienschmidt/httprouter). If you need performance and good productivity, you will love Gin. + + + +![Gin console logger](https://gin-gonic.github.io/gin/other/console.png) + +```sh +$ cat test.go +``` +```go +package main + +import "github.com/gin-gonic/gin" + +func main() { + r := gin.Default() + r.GET("/ping", func(c *gin.Context) { + c.JSON(200, gin.H{ + "message": "hello world", + }) + }) + r.Run() // listen and server on 0.0.0.0:8080 +} +``` + +## Benchmarks + +Gin uses a custom version of [HttpRouter](https://github.com/julienschmidt/httprouter) + +[See all benchmarks](/BENCHMARKS.md) + + +Benchmark name | (1) | (2) | (3) | (4) +--------------------------------|----------:|----------:|----------:|------: +BenchmarkAce_GithubAll | 10000 | 109482 | 13792 | 167 +BenchmarkBear_GithubAll | 10000 | 287490 | 79952 | 943 +BenchmarkBeego_GithubAll | 3000 | 562184 | 146272 | 2092 +BenchmarkBone_GithubAll | 500 | 2578716 | 648016 | 8119 +BenchmarkDenco_GithubAll | 20000 | 94955 | 20224 | 167 +BenchmarkEcho_GithubAll | 30000 | 58705 | 0 | 0 +**BenchmarkGin_GithubAll** | **30000** | **50991** | **0** | **0** +BenchmarkGocraftWeb_GithubAll | 5000 | 449648 | 133280 | 1889 +BenchmarkGoji_GithubAll | 2000 | 689748 | 56113 | 334 +BenchmarkGoJsonRest_GithubAll | 5000 | 537769 | 135995 | 2940 +BenchmarkGoRestful_GithubAll | 100 | 18410628 | 797236 | 7725 +BenchmarkGorillaMux_GithubAll | 200 | 8036360 | 153137 | 1791 +BenchmarkHttpRouter_GithubAll | 20000 | 63506 | 13792 | 167 +BenchmarkHttpTreeMux_GithubAll | 10000 | 165927 | 56112 | 334 +BenchmarkKocha_GithubAll | 10000 | 171362 | 23304 | 843 +BenchmarkMacaron_GithubAll | 2000 | 817008 | 224960 | 2315 +BenchmarkMartini_GithubAll | 100 | 12609209 | 237952 | 2686 +BenchmarkPat_GithubAll | 300 | 4830398 | 1504101 | 32222 +BenchmarkPossum_GithubAll | 10000 | 301716 | 97440 | 812 +BenchmarkR2router_GithubAll | 10000 | 270691 | 77328 | 1182 +BenchmarkRevel_GithubAll | 1000 | 1491919 | 345553 | 5918 +BenchmarkRivet_GithubAll | 10000 | 283860 | 84272 | 1079 +BenchmarkTango_GithubAll | 5000 | 473821 | 87078 | 2470 +BenchmarkTigerTonic_GithubAll | 2000 | 1120131 | 241088 | 6052 +BenchmarkTraffic_GithubAll | 200 | 8708979 | 2664762 | 22390 +BenchmarkVulcan_GithubAll | 5000 | 353392 | 19894 | 609 +BenchmarkZeus_GithubAll | 2000 | 944234 | 300688 | 2648 + +(1): Total Repetitions +(2): Single Repetition Duration (ns/op) +(3): Heap Memory (B/op) +(4): Average Allocations per Repetition (allocs/op) + +##Gin v1. stable + +- [x] Zero allocation router. +- [x] Still the fastest http router and framework. From routing to writing. +- [x] Complete suite of unit tests +- [x] Battle tested +- [x] API frozen, new releases will not break your code. + + +## Start using it +1. Download and install it: + +```sh +$ go get github.com/gin-gonic/gin +``` +2. Import it in your code: + +```go +import "github.com/gin-gonic/gin" +``` + +##API Examples + +#### Using GET, POST, PUT, PATCH, DELETE and OPTIONS + +```go +func main() { + // Creates a gin router with default middleware: + // logger and recovery (crash-free) middleware + router := gin.Default() + + router.GET("/someGet", getting) + router.POST("/somePost", posting) + router.PUT("/somePut", putting) + router.DELETE("/someDelete", deleting) + router.PATCH("/somePatch", patching) + router.HEAD("/someHead", head) + router.OPTIONS("/someOptions", options) + + // By default it serves on :8080 unless a + // PORT environment variable was defined. + router.Run() + // router.Run.Run(":3000") for a hard coded port +} +``` + +#### Parameters in path + +```go +func main() { + router := gin.Default() + + // This handler will match /user/john but will not match neither /user/ or /user + router.GET("/user/:name", func(c *gin.Context) { + name := c.Param("name") + c.String(http.StatusOK, "Hello %s", name) + }) + + // However, this one will match /user/john/ and also /user/john/send + // If no other routers match /user/john, it will redirect to /user/john/ + router.GET("/user/:name/*action", func(c *gin.Context) { + name := c.Param("name") + action := c.Param("action") + message := name + " is " + action + c.String(http.StatusOK, message) + }) + + router.Run(":8080") +} +``` + +#### Querystring parameters +```go +func main() { + router := gin.Default() + + // Query string parameters are parsed using the existing underlying request object. + // The request responds to a url matching: /welcome?firstname=Jane&lastname=Doe + router.GET("/welcome", func(c *gin.Context) { + firstname := c.DefaultQuery("firstname", "Guest") + lastname := c.Query("lastname") // shortcut for c.Request.URL.Query().Get("lastname") + + c.String(http.StatusOK, "Hello %s %s", firstname, lastname) + }) + router.Run(":8080") +} +``` + +### Multipart/Urlencoded Form + +```go +func main() { + router := gin.Default() + + router.POST("/form_post", func(c *gin.Context) { + message := c.PostForm("message") + nick := c.DefaultPostForm("nick", "anonymous") + + c.JSON(200, gin.H{ + "status": "posted", + "message": message, + "nick": nick, + }) + }) + router.Run(":8080") +} +``` + +### Another example: query + post form + +``` +POST /post?id=1234&page=1 HTTP/1.1 +Content-Type: application/x-www-form-urlencoded + +name=manu&message=this_is_great +``` + +```go +func main() { + router := gin.Default() + + router.POST("/post", func(c *gin.Context) { + + id := c.Query("id") + page := c.DefaultQuery("page", "0") + name := c.PostForm("name") + message := c.PostForm("message") + + fmt.Printf("id: %s; page: %s; name: %s; message: %s", id, page, name, message) + }) + router.Run(":8080") +} +``` + +``` +id: 1234; page: 1; name: manu; message: this_is_great +``` + + +#### Grouping routes +```go +func main() { + router := gin.Default() + + // Simple group: v1 + v1 := router.Group("/v1") + { + v1.POST("/login", loginEndpoint) + v1.POST("/submit", submitEndpoint) + v1.POST("/read", readEndpoint) + } + + // Simple group: v2 + v2 := router.Group("/v2") + { + v2.POST("/login", loginEndpoint) + v2.POST("/submit", submitEndpoint) + v2.POST("/read", readEndpoint) + } + + router.Run(":8080") +} +``` + + +#### Blank Gin without middleware by default + +Use + +```go +r := gin.New() +``` +instead of + +```go +r := gin.Default() +``` + + +#### Using middleware +```go +func main() { + // Creates a router without any middleware by default + r := gin.New() + + // Global middleware + r.Use(gin.Logger()) + r.Use(gin.Recovery()) + + // Per route middleware, you can add as many as you desire. + r.GET("/benchmark", MyBenchLogger(), benchEndpoint) + + // Authorization group + // authorized := r.Group("/", AuthRequired()) + // exactly the same than: + authorized := r.Group("/") + // per group middleware! in this case we use the custom created + // AuthRequired() middleware just in the "authorized" group. + authorized.Use(AuthRequired()) + { + authorized.POST("/login", loginEndpoint) + authorized.POST("/submit", submitEndpoint) + authorized.POST("/read", readEndpoint) + + // nested group + testing := authorized.Group("testing") + testing.GET("/analytics", analyticsEndpoint) + } + + // Listen and server on 0.0.0.0:8080 + r.Run(":8080") +} +``` + +#### Model binding and validation + +To bind a request body into a type, use model binding. We currently support binding of JSON, XML and standard form values (foo=bar&boo=baz). + +Note that you need to set the corresponding binding tag on all fields you want to bind. For example, when binding from JSON, set `json:"fieldname"`. + +When using the Bind-method, Gin tries to infer the binder depending on the Content-Type header. If you are sure what you are binding, you can use BindWith. + +You can also specify that specific fields are required. If a field is decorated with `binding:"required"` and has a empty value when binding, the current request will fail with an error. + +```go +// Binding from JSON +type Login struct { + User string `form:"user" json:"user" binding:"required"` + Password string `form:"password" json:"password" binding:"required"` +} + +func main() { + router := gin.Default() + + // Example for binding JSON ({"user": "manu", "password": "123"}) + router.POST("/loginJSON", func(c *gin.Context) { + var json Login + if c.BindJSON(&json) == nil { + if json.User == "manu" && json.Password == "123" { + c.JSON(http.StatusOK, gin.H{"status": "you are logged in"}) + } else { + c.JSON(http.StatusUnauthorized, gin.H{"status": "unauthorized"}) + } + } + }) + + // Example for binding a HTML form (user=manu&password=123) + router.POST("/loginForm", func(c *gin.Context) { + var form Login + // This will infer what binder to use depending on the content-type header. + if c.Bind(&form) == nil { + if form.User == "manu" && form.Password == "123" { + c.JSON(http.StatusOK, gin.H{"status": "you are logged in"}) + } else { + c.JSON(http.StatusUnauthorized, gin.H{"status": "unauthorized"}) + } + } + }) + + // Listen and server on 0.0.0.0:8080 + router.Run(":8080") +} +``` + + +###Multipart/Urlencoded binding +```go +package main + +import ( + "github.com/gin-gonic/gin" + "github.com/gin-gonic/gin/binding" +) + +type LoginForm struct { + User string `form:"user" binding:"required"` + Password string `form:"password" binding:"required"` +} + +func main() { + router := gin.Default() + router.POST("/login", func(c *gin.Context) { + // you can bind multipart form with explicit binding declaration: + // c.BindWith(&form, binding.Form) + // or you can simply use autobinding with Bind method: + var form LoginForm + // in this case proper binding will be automatically selected + if c.Bind(&form) == nil { + if form.User == "user" && form.Password == "password" { + c.JSON(200, gin.H{"status": "you are logged in"}) + } else { + c.JSON(401, gin.H{"status": "unauthorized"}) + } + } + }) + router.Run(":8080") +} +``` + +Test it with: +```sh +$ curl -v --form user=user --form password=password http://localhost:8080/login +``` + + +#### XML and JSON rendering + +```go +func main() { + r := gin.Default() + + // gin.H is a shortcut for map[string]interface{} + r.GET("/someJSON", func(c *gin.Context) { + c.JSON(http.StatusOK, gin.H{"message": "hey", "status": http.StatusOK}) + }) + + r.GET("/moreJSON", func(c *gin.Context) { + // You also can use a struct + var msg struct { + Name string `json:"user"` + Message string + Number int + } + msg.Name = "Lena" + msg.Message = "hey" + msg.Number = 123 + // Note that msg.Name becomes "user" in the JSON + // Will output : {"user": "Lena", "Message": "hey", "Number": 123} + c.JSON(http.StatusOK, msg) + }) + + r.GET("/someXML", func(c *gin.Context) { + c.XML(http.StatusOK, gin.H{"message": "hey", "status": http.StatusOK}) + }) + + // Listen and server on 0.0.0.0:8080 + r.Run(":8080") +} +``` + +####Serving static files + +```go +func main() { + router := gin.Default() + router.Static("/assets", "./assets") + router.StaticFS("/more_static", http.Dir("my_file_system")) + router.StaticFile("/favicon.ico", "./resources/favicon.ico") + + // Listen and server on 0.0.0.0:8080 + router.Run(":8080") +} +``` + +####HTML rendering + +Using LoadHTMLTemplates() + +```go +func main() { + router := gin.Default() + router.LoadHTMLGlob("templates/*") + //router.LoadHTMLFiles("templates/template1.html", "templates/template2.html") + router.GET("/index", func(c *gin.Context) { + c.HTML(http.StatusOK, "index.tmpl", gin.H{ + "title": "Main website", + }) + }) + router.Run(":8080") +} +``` +templates/index.tmpl +```html + +

+ {{ .title }} +

+ +``` + +Using templates with same name in different directories + +```go +func main() { + router := gin.Default() + router.LoadHTMLGlob("templates/**/*") + router.GET("/posts/index", func(c *gin.Context) { + c.HTML(http.StatusOK, "posts/index.tmpl", gin.H{ + "title": "Posts", + }) + }) + router.GET("/users/index", func(c *gin.Context) { + c.HTML(http.StatusOK, "users/index.tmpl", gin.H{ + "title": "Users", + }) + }) + router.Run(":8080") +} +``` +templates/posts/index.tmpl +```html +{{ define "posts/index.tmpl" }} +

+ {{ .title }} +

+

Using posts/index.tmpl

+ +{{ end }} +``` +templates/users/index.tmpl +```html +{{ define "users/index.tmpl" }} +

+ {{ .title }} +

+

Using users/index.tmpl

+ +{{ end }} +``` + +You can also use your own html template render + +```go +import "html/template" + +func main() { + router := gin.Default() + html := template.Must(template.ParseFiles("file1", "file2")) + router.SetHTMLTemplate(html) + router.Run(":8080") +} +``` + + +#### Redirects + +Issuing a HTTP redirect is easy: + +```go +r.GET("/test", func(c *gin.Context) { + c.Redirect(http.StatusMovedPermanently, "http://www.google.com/") +}) +``` +Both internal and external locations are supported. + + +#### Custom Middleware + +```go +func Logger() gin.HandlerFunc { + return func(c *gin.Context) { + t := time.Now() + + // Set example variable + c.Set("example", "12345") + + // before request + + c.Next() + + // after request + latency := time.Since(t) + log.Print(latency) + + // access the status we are sending + status := c.Writer.Status() + log.Println(status) + } +} + +func main() { + r := gin.New() + r.Use(Logger()) + + r.GET("/test", func(c *gin.Context) { + example := c.MustGet("example").(string) + + // it would print: "12345" + log.Println(example) + }) + + // Listen and server on 0.0.0.0:8080 + r.Run(":8080") +} +``` + +#### Using BasicAuth() middleware +```go +// simulate some private data +var secrets = gin.H{ + "foo": gin.H{"email": "foo@bar.com", "phone": "123433"}, + "austin": gin.H{"email": "austin@example.com", "phone": "666"}, + "lena": gin.H{"email": "lena@guapa.com", "phone": "523443"}, +} + +func main() { + r := gin.Default() + + // Group using gin.BasicAuth() middleware + // gin.Accounts is a shortcut for map[string]string + authorized := r.Group("/admin", gin.BasicAuth(gin.Accounts{ + "foo": "bar", + "austin": "1234", + "lena": "hello2", + "manu": "4321", + })) + + // /admin/secrets endpoint + // hit "localhost:8080/admin/secrets + authorized.GET("/secrets", func(c *gin.Context) { + // get user, it was setted by the BasicAuth middleware + user := c.MustGet(gin.AuthUserKey).(string) + if secret, ok := secrets[user]; ok { + c.JSON(http.StatusOK, gin.H{"user": user, "secret": secret}) + } else { + c.JSON(http.StatusOK, gin.H{"user": user, "secret": "NO SECRET :("}) + } + }) + + // Listen and server on 0.0.0.0:8080 + r.Run(":8080") +} +``` + + +#### Goroutines inside a middleware +When starting inside a middleware or handler, you **SHOULD NOT** use the original context inside it, you have to use a read-only copy. + +```go +func main() { + r := gin.Default() + + r.GET("/long_async", func(c *gin.Context) { + // create copy to be used inside the goroutine + cCp := c.Copy() + go func() { + // simulate a long task with time.Sleep(). 5 seconds + time.Sleep(5 * time.Second) + + // note than you are using the copied context "c_cp", IMPORTANT + log.Println("Done! in path " + cCp.Request.URL.Path) + }() + }) + + r.GET("/long_sync", func(c *gin.Context) { + // simulate a long task with time.Sleep(). 5 seconds + time.Sleep(5 * time.Second) + + // since we are NOT using a goroutine, we do not have to copy the context + log.Println("Done! in path " + c.Request.URL.Path) + }) + + // Listen and server on 0.0.0.0:8080 + r.Run(":8080") +} +``` + +#### Custom HTTP configuration + +Use `http.ListenAndServe()` directly, like this: + +```go +func main() { + router := gin.Default() + http.ListenAndServe(":8080", router) +} +``` +or + +```go +func main() { + router := gin.Default() + + s := &http.Server{ + Addr: ":8080", + Handler: router, + ReadTimeout: 10 * time.Second, + WriteTimeout: 10 * time.Second, + MaxHeaderBytes: 1 << 20, + } + s.ListenAndServe() +} +``` + +#### Graceful restart or stop + +Do you want to graceful restart or stop your web server? +There be some ways. + +We can using fvbock/endless to replace the default ListenAndServe + +Refer the issue for more details: + +https://github.com/gin-gonic/gin/issues/296 + +```go +router := gin.Default() +router.GET("/", handler) +// [...] +endless.ListenAndServe(":4242", router) + +``` diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/auth.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/auth.go new file mode 100644 index 0000000..125e659 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/auth.go @@ -0,0 +1,92 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package gin + +import ( + "crypto/subtle" + "encoding/base64" + "strconv" +) + +const AuthUserKey = "user" + +type ( + Accounts map[string]string + authPair struct { + Value string + User string + } + authPairs []authPair +) + +func (a authPairs) searchCredential(authValue string) (string, bool) { + if len(authValue) == 0 { + return "", false + } + for _, pair := range a { + if pair.Value == authValue { + return pair.User, true + } + } + return "", false +} + +// BasicAuthForRealm returns a Basic HTTP Authorization middleware. It takes as arguments a map[string]string where +// the key is the user name and the value is the password, as well as the name of the Realm. +// If the realm is empty, "Authorization Required" will be used by default. +// (see http://tools.ietf.org/html/rfc2617#section-1.2) +func BasicAuthForRealm(accounts Accounts, realm string) HandlerFunc { + if realm == "" { + realm = "Authorization Required" + } + realm = "Basic realm=" + strconv.Quote(realm) + pairs := processAccounts(accounts) + return func(c *Context) { + // Search user in the slice of allowed credentials + user, found := pairs.searchCredential(c.Request.Header.Get("Authorization")) + if !found { + // Credentials doesn't match, we return 401 and abort handlers chain. + c.Header("WWW-Authenticate", realm) + c.AbortWithStatus(401) + } else { + // The user credentials was found, set user's id to key AuthUserKey in this context, the userId can be read later using + // c.MustGet(gin.AuthUserKey) + c.Set(AuthUserKey, user) + } + } +} + +// BasicAuth returns a Basic HTTP Authorization middleware. It takes as argument a map[string]string where +// the key is the user name and the value is the password. +func BasicAuth(accounts Accounts) HandlerFunc { + return BasicAuthForRealm(accounts, "") +} + +func processAccounts(accounts Accounts) authPairs { + assert1(len(accounts) > 0, "Empty list of authorized credentials") + pairs := make(authPairs, 0, len(accounts)) + for user, password := range accounts { + assert1(len(user) > 0, "User can not be empty") + value := authorizationHeader(user, password) + pairs = append(pairs, authPair{ + Value: value, + User: user, + }) + } + return pairs +} + +func authorizationHeader(user, password string) string { + base := user + ":" + password + return "Basic " + base64.StdEncoding.EncodeToString([]byte(base)) +} + +func secureCompare(given, actual string) bool { + if subtle.ConstantTimeEq(int32(len(given)), int32(len(actual))) == 1 { + return subtle.ConstantTimeCompare([]byte(given), []byte(actual)) == 1 + } + /* Securely compare actual to itself to keep constant time, but always return false */ + return subtle.ConstantTimeCompare([]byte(actual), []byte(actual)) == 1 && false +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/binding.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/binding.go new file mode 100644 index 0000000..dc7397f --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/binding.go @@ -0,0 +1,67 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package binding + +import "net/http" + +const ( + MIMEJSON = "application/json" + MIMEHTML = "text/html" + MIMEXML = "application/xml" + MIMEXML2 = "text/xml" + MIMEPlain = "text/plain" + MIMEPOSTForm = "application/x-www-form-urlencoded" + MIMEMultipartPOSTForm = "multipart/form-data" + MIMEPROTOBUF = "application/x-protobuf" +) + +type Binding interface { + Name() string + Bind(*http.Request, interface{}) error +} + +type StructValidator interface { + // ValidateStruct can receive any kind of type and it should never panic, even if the configuration is not right. + // If the received type is not a struct, any validation should be skipped and nil must be returned. + // If the received type is a struct or pointer to a struct, the validation should be performed. + // If the struct is not valid or the validation itself fails, a descriptive error should be returned. + // Otherwise nil must be returned. + ValidateStruct(interface{}) error +} + +var Validator StructValidator = &defaultValidator{} + +var ( + JSON = jsonBinding{} + XML = xmlBinding{} + Form = formBinding{} + FormPost = formPostBinding{} + FormMultipart = formMultipartBinding{} + ProtoBuf = protobufBinding{} +) + +func Default(method, contentType string) Binding { + if method == "GET" { + return Form + } else { + switch contentType { + case MIMEJSON: + return JSON + case MIMEXML, MIMEXML2: + return XML + case MIMEPROTOBUF: + return ProtoBuf + default: //case MIMEPOSTForm, MIMEMultipartPOSTForm: + return Form + } + } +} + +func validate(obj interface{}) error { + if Validator == nil { + return nil + } + return Validator.ValidateStruct(obj) +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/default_validator.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/default_validator.go new file mode 100644 index 0000000..760728b --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/default_validator.go @@ -0,0 +1,41 @@ +package binding + +import ( + "reflect" + "sync" + + "gopkg.in/go-playground/validator.v8" +) + +type defaultValidator struct { + once sync.Once + validate *validator.Validate +} + +var _ StructValidator = &defaultValidator{} + +func (v *defaultValidator) ValidateStruct(obj interface{}) error { + if kindOfData(obj) == reflect.Struct { + v.lazyinit() + if err := v.validate.Struct(obj); err != nil { + return error(err) + } + } + return nil +} + +func (v *defaultValidator) lazyinit() { + v.once.Do(func() { + config := &validator.Config{TagName: "binding"} + v.validate = validator.New(config) + }) +} + +func kindOfData(data interface{}) reflect.Kind { + value := reflect.ValueOf(data) + valueType := value.Kind() + if valueType == reflect.Ptr { + valueType = value.Elem().Kind() + } + return valueType +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/form.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/form.go new file mode 100644 index 0000000..557333e --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/form.go @@ -0,0 +1,54 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package binding + +import "net/http" + +type formBinding struct{} +type formPostBinding struct{} +type formMultipartBinding struct{} + +func (formBinding) Name() string { + return "form" +} + +func (formBinding) Bind(req *http.Request, obj interface{}) error { + if err := req.ParseForm(); err != nil { + return err + } + req.ParseMultipartForm(32 << 10) // 32 MB + if err := mapForm(obj, req.Form); err != nil { + return err + } + return validate(obj) +} + +func (formPostBinding) Name() string { + return "form-urlencoded" +} + +func (formPostBinding) Bind(req *http.Request, obj interface{}) error { + if err := req.ParseForm(); err != nil { + return err + } + if err := mapForm(obj, req.PostForm); err != nil { + return err + } + return validate(obj) +} + +func (formMultipartBinding) Name() string { + return "multipart/form-data" +} + +func (formMultipartBinding) Bind(req *http.Request, obj interface{}) error { + if err := req.ParseMultipartForm(32 << 10); err != nil { + return err + } + if err := mapForm(obj, req.MultipartForm.Value); err != nil { + return err + } + return validate(obj) +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/form_mapping.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/form_mapping.go new file mode 100644 index 0000000..07c8375 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/form_mapping.go @@ -0,0 +1,150 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package binding + +import ( + "errors" + "reflect" + "strconv" +) + +func mapForm(ptr interface{}, form map[string][]string) error { + typ := reflect.TypeOf(ptr).Elem() + val := reflect.ValueOf(ptr).Elem() + for i := 0; i < typ.NumField(); i++ { + typeField := typ.Field(i) + structField := val.Field(i) + if !structField.CanSet() { + continue + } + + structFieldKind := structField.Kind() + inputFieldName := typeField.Tag.Get("form") + if inputFieldName == "" { + inputFieldName = typeField.Name + + // if "form" tag is nil, we inspect if the field is a struct. + // this would not make sense for JSON parsing but it does for a form + // since data is flatten + if structFieldKind == reflect.Struct { + err := mapForm(structField.Addr().Interface(), form) + if err != nil { + return err + } + continue + } + } + inputValue, exists := form[inputFieldName] + if !exists { + continue + } + + numElems := len(inputValue) + if structFieldKind == reflect.Slice && numElems > 0 { + sliceOf := structField.Type().Elem().Kind() + slice := reflect.MakeSlice(structField.Type(), numElems, numElems) + for i := 0; i < numElems; i++ { + if err := setWithProperType(sliceOf, inputValue[i], slice.Index(i)); err != nil { + return err + } + } + val.Field(i).Set(slice) + } else { + if err := setWithProperType(typeField.Type.Kind(), inputValue[0], structField); err != nil { + return err + } + } + } + return nil +} + +func setWithProperType(valueKind reflect.Kind, val string, structField reflect.Value) error { + switch valueKind { + case reflect.Int: + return setIntField(val, 0, structField) + case reflect.Int8: + return setIntField(val, 8, structField) + case reflect.Int16: + return setIntField(val, 16, structField) + case reflect.Int32: + return setIntField(val, 32, structField) + case reflect.Int64: + return setIntField(val, 64, structField) + case reflect.Uint: + return setUintField(val, 0, structField) + case reflect.Uint8: + return setUintField(val, 8, structField) + case reflect.Uint16: + return setUintField(val, 16, structField) + case reflect.Uint32: + return setUintField(val, 32, structField) + case reflect.Uint64: + return setUintField(val, 64, structField) + case reflect.Bool: + return setBoolField(val, structField) + case reflect.Float32: + return setFloatField(val, 32, structField) + case reflect.Float64: + return setFloatField(val, 64, structField) + case reflect.String: + structField.SetString(val) + default: + return errors.New("Unknown type") + } + return nil +} + +func setIntField(val string, bitSize int, field reflect.Value) error { + if val == "" { + val = "0" + } + intVal, err := strconv.ParseInt(val, 10, bitSize) + if err == nil { + field.SetInt(intVal) + } + return err +} + +func setUintField(val string, bitSize int, field reflect.Value) error { + if val == "" { + val = "0" + } + uintVal, err := strconv.ParseUint(val, 10, bitSize) + if err == nil { + field.SetUint(uintVal) + } + return err +} + +func setBoolField(val string, field reflect.Value) error { + if val == "" { + val = "false" + } + boolVal, err := strconv.ParseBool(val) + if err == nil { + field.SetBool(boolVal) + } + return nil +} + +func setFloatField(val string, bitSize int, field reflect.Value) error { + if val == "" { + val = "0.0" + } + floatVal, err := strconv.ParseFloat(val, bitSize) + if err == nil { + field.SetFloat(floatVal) + } + return err +} + +// Don't pass in pointers to bind to. Can lead to bugs. See: +// https://github.com/codegangsta/martini-contrib/issues/40 +// https://github.com/codegangsta/martini-contrib/pull/34#issuecomment-29683659 +func ensureNotPointer(obj interface{}) { + if reflect.TypeOf(obj).Kind() == reflect.Ptr { + panic("Pointers are not accepted as binding models") + } +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/json.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/json.go new file mode 100644 index 0000000..6e53244 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/json.go @@ -0,0 +1,25 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package binding + +import ( + "encoding/json" + + "net/http" +) + +type jsonBinding struct{} + +func (jsonBinding) Name() string { + return "json" +} + +func (jsonBinding) Bind(req *http.Request, obj interface{}) error { + decoder := json.NewDecoder(req.Body) + if err := decoder.Decode(obj); err != nil { + return err + } + return validate(obj) +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/protobuf.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/protobuf.go new file mode 100644 index 0000000..d6bef02 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/protobuf.go @@ -0,0 +1,35 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package binding + +import ( + "github.com/golang/protobuf/proto" + + "io/ioutil" + "net/http" +) + +type protobufBinding struct{} + +func (_ protobufBinding) Name() string { + return "protobuf" +} + +func (_ protobufBinding) Bind(req *http.Request, obj interface{}) error { + + buf, err := ioutil.ReadAll(req.Body) + if err != nil { + return err + } + + if err = proto.Unmarshal(buf, obj.(proto.Message)); err != nil { + return err + } + + //Here it's same to return validate(obj), but util now we cann't add `binding:""` to the struct + //which automatically generate by gen-proto + return nil + //return validate(obj) +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/xml.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/xml.go new file mode 100644 index 0000000..f84a6b7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/binding/xml.go @@ -0,0 +1,24 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package binding + +import ( + "encoding/xml" + "net/http" +) + +type xmlBinding struct{} + +func (xmlBinding) Name() string { + return "xml" +} + +func (xmlBinding) Bind(req *http.Request, obj interface{}) error { + decoder := xml.NewDecoder(req.Body) + if err := decoder.Decode(obj); err != nil { + return err + } + return validate(obj) +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/context.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/context.go new file mode 100644 index 0000000..2fb69b7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/context.go @@ -0,0 +1,562 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package gin + +import ( + "errors" + "io" + "math" + "net" + "net/http" + "net/url" + "strings" + "time" + + "github.com/gin-gonic/gin/binding" + "github.com/gin-gonic/gin/render" + "github.com/manucorporat/sse" + "golang.org/x/net/context" +) + +// Content-Type MIME of the most common data formats +const ( + MIMEJSON = binding.MIMEJSON + MIMEHTML = binding.MIMEHTML + MIMEXML = binding.MIMEXML + MIMEXML2 = binding.MIMEXML2 + MIMEPlain = binding.MIMEPlain + MIMEPOSTForm = binding.MIMEPOSTForm + MIMEMultipartPOSTForm = binding.MIMEMultipartPOSTForm +) + +const abortIndex int8 = math.MaxInt8 / 2 + +// Context is the most important part of gin. It allows us to pass variables between middleware, +// manage the flow, validate the JSON of a request and render a JSON response for example. +type Context struct { + writermem responseWriter + Request *http.Request + Writer ResponseWriter + + Params Params + handlers HandlersChain + index int8 + + engine *Engine + Keys map[string]interface{} + Errors errorMsgs + Accepted []string +} + +var _ context.Context = &Context{} + +/************************************/ +/********** CONTEXT CREATION ********/ +/************************************/ + +func (c *Context) reset() { + c.Writer = &c.writermem + c.Params = c.Params[0:0] + c.handlers = nil + c.index = -1 + c.Keys = nil + c.Errors = c.Errors[0:0] + c.Accepted = nil +} + +// Copy returns a copy of the current context that can be safely used outside the request's scope. +// This have to be used then the context has to be passed to a goroutine. +func (c *Context) Copy() *Context { + var cp Context = *c + cp.writermem.ResponseWriter = nil + cp.Writer = &cp.writermem + cp.index = abortIndex + cp.handlers = nil + return &cp +} + +// HandlerName returns the main handle's name. For example if the handler is "handleGetUsers()", this +// function will return "main.handleGetUsers" +func (c *Context) HandlerName() string { + return nameOfFunction(c.handlers.Last()) +} + +/************************************/ +/*********** FLOW CONTROL ***********/ +/************************************/ + +// Next should be used only inside middleware. +// It executes the pending handlers in the chain inside the calling handler. +// See example in github. +func (c *Context) Next() { + c.index++ + s := int8(len(c.handlers)) + for ; c.index < s; c.index++ { + c.handlers[c.index](c) + } +} + +// IsAborted returns true if the currect context was aborted. +func (c *Context) IsAborted() bool { + return c.index >= abortIndex +} + +// Abort prevents pending handlers from being called. Note that this will not stop the current handler. +// Let's say you have an authorization middleware that validates that the current request is authorized. If the +// authorization fails (ex: the password does not match), call Abort to ensure the remaining handlers +// for this request are not called. +func (c *Context) Abort() { + c.index = abortIndex +} + +// AbortWithStatus calls `Abort()` and writes the headers with the specified status code. +// For example, a failed attempt to authentificate a request could use: context.AbortWithStatus(401). +func (c *Context) AbortWithStatus(code int) { + c.Status(code) + c.Abort() +} + +// AbortWithError calls `AbortWithStatus()` and `Error()` internally. This method stops the chain, writes the status code and +// pushes the specified error to `c.Errors`. +// See Context.Error() for more details. +func (c *Context) AbortWithError(code int, err error) *Error { + c.AbortWithStatus(code) + return c.Error(err) +} + +/************************************/ +/********* ERROR MANAGEMENT *********/ +/************************************/ + +// Attaches an error to the current context. The error is pushed to a list of errors. +// It's a good idea to call Error for each error that occurred during the resolution of a request. +// A middleware can be used to collect all the errors +// and push them to a database together, print a log, or append it in the HTTP response. +func (c *Context) Error(err error) *Error { + var parsedError *Error + switch err.(type) { + case *Error: + parsedError = err.(*Error) + default: + parsedError = &Error{ + Err: err, + Type: ErrorTypePrivate, + } + } + c.Errors = append(c.Errors, parsedError) + return parsedError +} + +/************************************/ +/******** METADATA MANAGEMENT********/ +/************************************/ + +// Set is used to store a new key/value pair exclusivelly for this context. +// It also lazy initializes c.Keys if it was not used previously. +func (c *Context) Set(key string, value interface{}) { + if c.Keys == nil { + c.Keys = make(map[string]interface{}) + } + c.Keys[key] = value +} + +// Get returns the value for the given key, ie: (value, true). +// If the value does not exists it returns (nil, false) +func (c *Context) Get(key string) (value interface{}, exists bool) { + if c.Keys != nil { + value, exists = c.Keys[key] + } + return +} + +// Returns the value for the given key if it exists, otherwise it panics. +func (c *Context) MustGet(key string) interface{} { + if value, exists := c.Get(key); exists { + return value + } + panic("Key \"" + key + "\" does not exist") +} + +/************************************/ +/************ INPUT DATA ************/ +/************************************/ + +// Param returns the value of the URL param. +// It is a shortcut for c.Params.ByName(key) +// router.GET("/user/:id", func(c *gin.Context) { +// // a GET request to /user/john +// id := c.Param("id") // id == "john" +// }) +func (c *Context) Param(key string) string { + return c.Params.ByName(key) +} + +// Query returns the keyed url query value if it exists, +// othewise it returns an empty string `("")`. +// It is shortcut for `c.Request.URL.Query().Get(key)` +// GET /path?id=1234&name=Manu&value= +// c.Query("id") == "1234" +// c.Query("name") == "Manu" +// c.Query("value") == "" +// c.Query("wtf") == "" +func (c *Context) Query(key string) string { + value, _ := c.GetQuery(key) + return value +} + +// DefaultQuery returns the keyed url query value if it exists, +// othewise it returns the specified defaultValue string. +// See: Query() and GetQuery() for further information. +// GET /?name=Manu&lastname= +// c.DefaultQuery("name", "unknown") == "Manu" +// c.DefaultQuery("id", "none") == "none" +// c.DefaultQuery("lastname", "none") == "" +func (c *Context) DefaultQuery(key, defaultValue string) string { + if value, ok := c.GetQuery(key); ok { + return value + } + return defaultValue +} + +// GetQuery is like Query(), it returns the keyed url query value +// if it exists `(value, true)` (even when the value is an empty string), +// othewise it returns `("", false)`. +// It is shortcut for `c.Request.URL.Query().Get(key)` +// GET /?name=Manu&lastname= +// ("Manu", true) == c.GetQuery("name") +// ("", false) == c.GetQuery("id") +// ("", true) == c.GetQuery("lastname") +func (c *Context) GetQuery(key string) (string, bool) { + req := c.Request + if values, ok := req.URL.Query()[key]; ok && len(values) > 0 { + return values[0], true + } + return "", false +} + +// PostForm returns the specified key from a POST urlencoded form or multipart form +// when it exists, otherwise it returns an empty string `("")`. +func (c *Context) PostForm(key string) string { + value, _ := c.GetPostForm(key) + return value +} + +// PostForm returns the specified key from a POST urlencoded form or multipart form +// when it exists, otherwise it returns the specified defaultValue string. +// See: PostForm() and GetPostForm() for further information. +func (c *Context) DefaultPostForm(key, defaultValue string) string { + if value, ok := c.GetPostForm(key); ok { + return value + } + return defaultValue +} + +// GetPostForm is like PostForm(key). It returns the specified key from a POST urlencoded +// form or multipart form when it exists `(value, true)` (even when the value is an empty string), +// otherwise it returns ("", false). +// For example, during a PATCH request to update the user's email: +// email=mail@example.com --> ("mail@example.com", true) := GetPostForm("email") // set email to "mail@example.com" +// email= --> ("", true) := GetPostForm("email") // set email to "" +// --> ("", false) := GetPostForm("email") // do nothing with email +func (c *Context) GetPostForm(key string) (string, bool) { + req := c.Request + req.ParseMultipartForm(32 << 20) // 32 MB + if values := req.PostForm[key]; len(values) > 0 { + return values[0], true + } + if req.MultipartForm != nil && req.MultipartForm.File != nil { + if values := req.MultipartForm.Value[key]; len(values) > 0 { + return values[0], true + } + } + return "", false +} + +// Bind checks the Content-Type to select a binding engine automatically, +// Depending the "Content-Type" header different bindings are used: +// "application/json" --> JSON binding +// "application/xml" --> XML binding +// otherwise --> returns an error +// If Parses the request's body as JSON if Content-Type == "application/json" using JSON or XML as a JSON input. +// It decodes the json payload into the struct specified as a pointer. +// Like ParseBody() but this method also writes a 400 error if the json is not valid. +func (c *Context) Bind(obj interface{}) error { + b := binding.Default(c.Request.Method, c.ContentType()) + return c.BindWith(obj, b) +} + +// BindJSON is a shortcut for c.BindWith(obj, binding.JSON) +func (c *Context) BindJSON(obj interface{}) error { + return c.BindWith(obj, binding.JSON) +} + +// BindWith binds the passed struct pointer using the specified binding engine. +// See the binding package. +func (c *Context) BindWith(obj interface{}, b binding.Binding) error { + if err := b.Bind(c.Request, obj); err != nil { + c.AbortWithError(400, err).SetType(ErrorTypeBind) + return err + } + return nil +} + +// ClientIP implements a best effort algorithm to return the real client IP, it parses +// X-Real-IP and X-Forwarded-For in order to work properly with reverse-proxies such us: nginx or haproxy. +func (c *Context) ClientIP() string { + if c.engine.ForwardedByClientIP { + clientIP := strings.TrimSpace(c.requestHeader("X-Real-Ip")) + if len(clientIP) > 0 { + return clientIP + } + clientIP = c.requestHeader("X-Forwarded-For") + if index := strings.IndexByte(clientIP, ','); index >= 0 { + clientIP = clientIP[0:index] + } + clientIP = strings.TrimSpace(clientIP) + if len(clientIP) > 0 { + return clientIP + } + } + if ip, _, err := net.SplitHostPort(strings.TrimSpace(c.Request.RemoteAddr)); err == nil { + return ip + } + return "" +} + +// ContentType returns the Content-Type header of the request. +func (c *Context) ContentType() string { + return filterFlags(c.requestHeader("Content-Type")) +} + +func (c *Context) requestHeader(key string) string { + if values, _ := c.Request.Header[key]; len(values) > 0 { + return values[0] + } + return "" +} + +/************************************/ +/******** RESPONSE RENDERING ********/ +/************************************/ + +func (c *Context) Status(code int) { + c.writermem.WriteHeader(code) +} + +// Header is a intelligent shortcut for c.Writer.Header().Set(key, value) +// It writes a header in the response. +// If value == "", this method removes the header `c.Writer.Header().Del(key)` +func (c *Context) Header(key, value string) { + if len(value) == 0 { + c.Writer.Header().Del(key) + } else { + c.Writer.Header().Set(key, value) + } +} + +func (c *Context) SetCookie( + name string, + value string, + maxAge int, + path string, + domain string, + secure bool, + httpOnly bool, +) { + if path == "" { + path = "/" + } + http.SetCookie(c.Writer, &http.Cookie{ + Name: name, + Value: url.QueryEscape(value), + MaxAge: maxAge, + Path: path, + Domain: domain, + Secure: secure, + HttpOnly: httpOnly, + }) +} + +func (c *Context) Cookie(name string) (string, error) { + cookie, err := c.Request.Cookie(name) + if err != nil { + return "", err + } + val, _ := url.QueryUnescape(cookie.Value) + return val, nil +} + +func (c *Context) Render(code int, r render.Render) { + c.Status(code) + if err := r.Render(c.Writer); err != nil { + panic(err) + } +} + +// HTML renders the HTTP template specified by its file name. +// It also updates the HTTP code and sets the Content-Type as "text/html". +// See http://golang.org/doc/articles/wiki/ +func (c *Context) HTML(code int, name string, obj interface{}) { + instance := c.engine.HTMLRender.Instance(name, obj) + c.Render(code, instance) +} + +// IndentedJSON serializes the given struct as pretty JSON (indented + endlines) into the response body. +// It also sets the Content-Type as "application/json". +// WARNING: we recommend to use this only for development propuses since printing pretty JSON is +// more CPU and bandwidth consuming. Use Context.JSON() instead. +func (c *Context) IndentedJSON(code int, obj interface{}) { + c.Render(code, render.IndentedJSON{Data: obj}) +} + +// JSON serializes the given struct as JSON into the response body. +// It also sets the Content-Type as "application/json". +func (c *Context) JSON(code int, obj interface{}) { + c.Status(code) + if err := render.WriteJSON(c.Writer, obj); err != nil { + panic(err) + } +} + +// XML serializes the given struct as XML into the response body. +// It also sets the Content-Type as "application/xml". +func (c *Context) XML(code int, obj interface{}) { + c.Render(code, render.XML{Data: obj}) +} + +// String writes the given string into the response body. +func (c *Context) String(code int, format string, values ...interface{}) { + c.Status(code) + render.WriteString(c.Writer, format, values) +} + +// Redirect returns a HTTP redirect to the specific location. +func (c *Context) Redirect(code int, location string) { + c.Render(-1, render.Redirect{ + Code: code, + Location: location, + Request: c.Request, + }) +} + +// Data writes some data into the body stream and updates the HTTP code. +func (c *Context) Data(code int, contentType string, data []byte) { + c.Render(code, render.Data{ + ContentType: contentType, + Data: data, + }) +} + +// File writes the specified file into the body stream in a efficient way. +func (c *Context) File(filepath string) { + http.ServeFile(c.Writer, c.Request, filepath) +} + +// SSEvent writes a Server-Sent Event into the body stream. +func (c *Context) SSEvent(name string, message interface{}) { + c.Render(-1, sse.Event{ + Event: name, + Data: message, + }) +} + +func (c *Context) Stream(step func(w io.Writer) bool) { + w := c.Writer + clientGone := w.CloseNotify() + for { + select { + case <-clientGone: + return + default: + keepOpen := step(w) + w.Flush() + if !keepOpen { + return + } + } + } +} + +/************************************/ +/******** CONTENT NEGOTIATION *******/ +/************************************/ + +type Negotiate struct { + Offered []string + HTMLName string + HTMLData interface{} + JSONData interface{} + XMLData interface{} + Data interface{} +} + +func (c *Context) Negotiate(code int, config Negotiate) { + switch c.NegotiateFormat(config.Offered...) { + case binding.MIMEJSON: + data := chooseData(config.JSONData, config.Data) + c.JSON(code, data) + + case binding.MIMEHTML: + data := chooseData(config.HTMLData, config.Data) + c.HTML(code, config.HTMLName, data) + + case binding.MIMEXML: + data := chooseData(config.XMLData, config.Data) + c.XML(code, data) + + default: + c.AbortWithError(http.StatusNotAcceptable, errors.New("the accepted formats are not offered by the server")) + } +} + +func (c *Context) NegotiateFormat(offered ...string) string { + assert1(len(offered) > 0, "you must provide at least one offer") + + if c.Accepted == nil { + c.Accepted = parseAccept(c.requestHeader("Accept")) + } + if len(c.Accepted) == 0 { + return offered[0] + } + for _, accepted := range c.Accepted { + for _, offert := range offered { + if accepted == offert { + return offert + } + } + } + return "" +} + +func (c *Context) SetAccepted(formats ...string) { + c.Accepted = formats +} + +/************************************/ +/***** GOLANG.ORG/X/NET/CONTEXT *****/ +/************************************/ + +func (c *Context) Deadline() (deadline time.Time, ok bool) { + return +} + +func (c *Context) Done() <-chan struct{} { + return nil +} + +func (c *Context) Err() error { + return nil +} + +func (c *Context) Value(key interface{}) interface{} { + if key == 0 { + return c.Request + } + if keyAsString, ok := key.(string); ok { + val, _ := c.Get(keyAsString) + return val + } + return nil +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/debug.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/debug.go new file mode 100644 index 0000000..a121591 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/debug.go @@ -0,0 +1,71 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package gin + +import ( + "bytes" + "html/template" + "log" +) + +func init() { + log.SetFlags(0) +} + +// IsDebugging returns true if the framework is running in debug mode. +// Use SetMode(gin.Release) to switch to disable the debug mode. +func IsDebugging() bool { + return ginMode == debugCode +} + +func debugPrintRoute(httpMethod, absolutePath string, handlers HandlersChain) { + if IsDebugging() { + nuHandlers := len(handlers) + handlerName := nameOfFunction(handlers.Last()) + debugPrint("%-6s %-25s --> %s (%d handlers)\n", httpMethod, absolutePath, handlerName, nuHandlers) + } +} + +func debugPrintLoadTemplate(tmpl *template.Template) { + if IsDebugging() { + var buf bytes.Buffer + for _, tmpl := range tmpl.Templates() { + buf.WriteString("\t- ") + buf.WriteString(tmpl.Name()) + buf.WriteString("\n") + } + debugPrint("Loaded HTML Templates (%d): \n%s\n", len(tmpl.Templates()), buf.String()) + } +} + +func debugPrint(format string, values ...interface{}) { + if IsDebugging() { + log.Printf("[GIN-debug] "+format, values...) + } +} + +func debugPrintWARNINGNew() { + debugPrint(`[WARNING] Running in "debug" mode. Switch to "release" mode in production. + - using env: export GIN_MODE=release + - using code: gin.SetMode(gin.ReleaseMode) + +`) +} + +func debugPrintWARNINGSetHTMLTemplate() { + debugPrint(`[WARNING] Since SetHTMLTemplate() is NOT thread-safe. It should only be called +at initialization. ie. before any route is registered or the router is listening in a socket: + + router := gin.Default() + router.SetHTMLTemplate(template) // << good place + +`) +} + +func debugPrintError(err error) { + if err != nil { + debugPrint("[ERROR] %v\n", err) + } +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/deprecated.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/deprecated.go new file mode 100644 index 0000000..0488a9b --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/deprecated.go @@ -0,0 +1,12 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package gin + +import "log" + +func (c *Context) GetCookie(name string) (string, error) { + log.Println("GetCookie() method is deprecated. Use Cookie() instead.") + return c.Cookie(name) +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/errors.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/errors.go new file mode 100644 index 0000000..bced19a --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/errors.go @@ -0,0 +1,159 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package gin + +import ( + "bytes" + "encoding/json" + "fmt" + "reflect" +) + +type ErrorType uint64 + +const ( + ErrorTypeBind ErrorType = 1 << 63 // used when c.Bind() fails + ErrorTypeRender ErrorType = 1 << 62 // used when c.Render() fails + ErrorTypePrivate ErrorType = 1 << 0 + ErrorTypePublic ErrorType = 1 << 1 + + ErrorTypeAny ErrorType = 1<<64 - 1 + ErrorTypeNu = 2 +) + +type ( + Error struct { + Err error + Type ErrorType + Meta interface{} + } + + errorMsgs []*Error +) + +var _ error = &Error{} + +func (msg *Error) SetType(flags ErrorType) *Error { + msg.Type = flags + return msg +} + +func (msg *Error) SetMeta(data interface{}) *Error { + msg.Meta = data + return msg +} + +func (msg *Error) JSON() interface{} { + json := H{} + if msg.Meta != nil { + value := reflect.ValueOf(msg.Meta) + switch value.Kind() { + case reflect.Struct: + return msg.Meta + case reflect.Map: + for _, key := range value.MapKeys() { + json[key.String()] = value.MapIndex(key).Interface() + } + default: + json["meta"] = msg.Meta + } + } + if _, ok := json["error"]; !ok { + json["error"] = msg.Error() + } + return json +} + +// Implements the json.Marshaller interface +func (msg *Error) MarshalJSON() ([]byte, error) { + return json.Marshal(msg.JSON()) +} + +// Implements the error interface +func (msg *Error) Error() string { + return msg.Err.Error() +} + +func (msg *Error) IsType(flags ErrorType) bool { + return (msg.Type & flags) > 0 +} + +// Returns a readonly copy filterd the byte. +// ie ByType(gin.ErrorTypePublic) returns a slice of errors with type=ErrorTypePublic +func (a errorMsgs) ByType(typ ErrorType) errorMsgs { + if len(a) == 0 { + return nil + } + if typ == ErrorTypeAny { + return a + } + var result errorMsgs = nil + for _, msg := range a { + if msg.IsType(typ) { + result = append(result, msg) + } + } + return result +} + +// Returns the last error in the slice. It returns nil if the array is empty. +// Shortcut for errors[len(errors)-1] +func (a errorMsgs) Last() *Error { + length := len(a) + if length > 0 { + return a[length-1] + } + return nil +} + +// Returns an array will all the error messages. +// Example: +// c.Error(errors.New("first")) +// c.Error(errors.New("second")) +// c.Error(errors.New("third")) +// c.Errors.Errors() // == []string{"first", "second", "third"} +func (a errorMsgs) Errors() []string { + if len(a) == 0 { + return nil + } + errorStrings := make([]string, len(a)) + for i, err := range a { + errorStrings[i] = err.Error() + } + return errorStrings +} + +func (a errorMsgs) JSON() interface{} { + switch len(a) { + case 0: + return nil + case 1: + return a.Last().JSON() + default: + json := make([]interface{}, len(a)) + for i, err := range a { + json[i] = err.JSON() + } + return json + } +} + +func (a errorMsgs) MarshalJSON() ([]byte, error) { + return json.Marshal(a.JSON()) +} + +func (a errorMsgs) String() string { + if len(a) == 0 { + return "" + } + var buffer bytes.Buffer + for i, msg := range a { + fmt.Fprintf(&buffer, "Error #%02d: %s\n", (i + 1), msg.Err) + if msg.Meta != nil { + fmt.Fprintf(&buffer, " Meta: %v\n", msg.Meta) + } + } + return buffer.String() +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/fs.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/fs.go new file mode 100644 index 0000000..6af3ded --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/fs.go @@ -0,0 +1,42 @@ +package gin + +import ( + "net/http" + "os" +) + +type ( + onlyfilesFS struct { + fs http.FileSystem + } + neuteredReaddirFile struct { + http.File + } +) + +// Dir returns a http.Filesystem that can be used by http.FileServer(). It is used interally +// in router.Static(). +// if listDirectory == true, then it works the same as http.Dir() otherwise it returns +// a filesystem that prevents http.FileServer() to list the directory files. +func Dir(root string, listDirectory bool) http.FileSystem { + fs := http.Dir(root) + if listDirectory { + return fs + } + return &onlyfilesFS{fs} +} + +// Conforms to http.Filesystem +func (fs onlyfilesFS) Open(name string) (http.File, error) { + f, err := fs.fs.Open(name) + if err != nil { + return nil, err + } + return neuteredReaddirFile{f}, nil +} + +// Overrides the http.File default implementation +func (f neuteredReaddirFile) Readdir(count int) ([]os.FileInfo, error) { + // this disables directory listing + return nil, nil +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/gin.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/gin.go new file mode 100644 index 0000000..fb1df9c --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/gin.go @@ -0,0 +1,370 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package gin + +import ( + "html/template" + "net" + "net/http" + "os" + "sync" + + "github.com/gin-gonic/gin/render" +) + +// Framework's version +const Version = "v1.0rc2" + +var default404Body = []byte("404 page not found") +var default405Body = []byte("405 method not allowed") + +type HandlerFunc func(*Context) +type HandlersChain []HandlerFunc + +// Last returns the last handler in the chain. ie. the last handler is the main own. +func (c HandlersChain) Last() HandlerFunc { + length := len(c) + if length > 0 { + return c[length-1] + } + return nil +} + +type ( + RoutesInfo []RouteInfo + RouteInfo struct { + Method string + Path string + Handler string + } + + // Engine is the framework's instance, it contains the muxer, middleware and configuration settings. + // Create an instance of Engine, by using New() or Default() + Engine struct { + RouterGroup + HTMLRender render.HTMLRender + allNoRoute HandlersChain + allNoMethod HandlersChain + noRoute HandlersChain + noMethod HandlersChain + pool sync.Pool + trees methodTrees + + // Enables automatic redirection if the current route can't be matched but a + // handler for the path with (without) the trailing slash exists. + // For example if /foo/ is requested but a route only exists for /foo, the + // client is redirected to /foo with http status code 301 for GET requests + // and 307 for all other request methods. + RedirectTrailingSlash bool + + // If enabled, the router tries to fix the current request path, if no + // handle is registered for it. + // First superfluous path elements like ../ or // are removed. + // Afterwards the router does a case-insensitive lookup of the cleaned path. + // If a handle can be found for this route, the router makes a redirection + // to the corrected path with status code 301 for GET requests and 307 for + // all other request methods. + // For example /FOO and /..//Foo could be redirected to /foo. + // RedirectTrailingSlash is independent of this option. + RedirectFixedPath bool + + // If enabled, the router checks if another method is allowed for the + // current route, if the current request can not be routed. + // If this is the case, the request is answered with 'Method Not Allowed' + // and HTTP status code 405. + // If no other Method is allowed, the request is delegated to the NotFound + // handler. + HandleMethodNotAllowed bool + ForwardedByClientIP bool + } +) + +var _ IRouter = &Engine{} + +// New returns a new blank Engine instance without any middleware attached. +// By default the configuration is: +// - RedirectTrailingSlash: true +// - RedirectFixedPath: false +// - HandleMethodNotAllowed: false +// - ForwardedByClientIP: true +func New() *Engine { + debugPrintWARNINGNew() + engine := &Engine{ + RouterGroup: RouterGroup{ + Handlers: nil, + basePath: "/", + root: true, + }, + RedirectTrailingSlash: true, + RedirectFixedPath: false, + HandleMethodNotAllowed: false, + ForwardedByClientIP: true, + trees: make(methodTrees, 0, 9), + } + engine.RouterGroup.engine = engine + engine.pool.New = func() interface{} { + return engine.allocateContext() + } + return engine +} + +// Default returns an Engine instance with the Logger and Recovery middleware already attached. +func Default() *Engine { + engine := New() + engine.Use(Logger(), Recovery()) + return engine +} + +func (engine *Engine) allocateContext() *Context { + return &Context{engine: engine} +} + +func (engine *Engine) LoadHTMLGlob(pattern string) { + if IsDebugging() { + debugPrintLoadTemplate(template.Must(template.ParseGlob(pattern))) + engine.HTMLRender = render.HTMLDebug{Glob: pattern} + } else { + templ := template.Must(template.ParseGlob(pattern)) + engine.SetHTMLTemplate(templ) + } +} + +func (engine *Engine) LoadHTMLFiles(files ...string) { + if IsDebugging() { + engine.HTMLRender = render.HTMLDebug{Files: files} + } else { + templ := template.Must(template.ParseFiles(files...)) + engine.SetHTMLTemplate(templ) + } +} + +func (engine *Engine) SetHTMLTemplate(templ *template.Template) { + if len(engine.trees) > 0 { + debugPrintWARNINGSetHTMLTemplate() + } + engine.HTMLRender = render.HTMLProduction{Template: templ} +} + +// Adds handlers for NoRoute. It return a 404 code by default. +func (engine *Engine) NoRoute(handlers ...HandlerFunc) { + engine.noRoute = handlers + engine.rebuild404Handlers() +} + +// Sets the handlers called when... TODO +func (engine *Engine) NoMethod(handlers ...HandlerFunc) { + engine.noMethod = handlers + engine.rebuild405Handlers() +} + +// Attachs a global middleware to the router. ie. the middleware attached though Use() will be +// included in the handlers chain for every single request. Even 404, 405, static files... +// For example, this is the right place for a logger or error management middleware. +func (engine *Engine) Use(middleware ...HandlerFunc) IRoutes { + engine.RouterGroup.Use(middleware...) + engine.rebuild404Handlers() + engine.rebuild405Handlers() + return engine +} + +func (engine *Engine) rebuild404Handlers() { + engine.allNoRoute = engine.combineHandlers(engine.noRoute) +} + +func (engine *Engine) rebuild405Handlers() { + engine.allNoMethod = engine.combineHandlers(engine.noMethod) +} + +func (engine *Engine) addRoute(method, path string, handlers HandlersChain) { + assert1(path[0] == '/', "path must begin with '/'") + assert1(len(method) > 0, "HTTP method can not be empty") + assert1(len(handlers) > 0, "there must be at least one handler") + + debugPrintRoute(method, path, handlers) + root := engine.trees.get(method) + if root == nil { + root = new(node) + engine.trees = append(engine.trees, methodTree{method: method, root: root}) + } + root.addRoute(path, handlers) +} + +// Routes returns a slice of registered routes, including some useful information, such as: +// the http method, path and the handler name. +func (engine *Engine) Routes() (routes RoutesInfo) { + for _, tree := range engine.trees { + routes = iterate("", tree.method, routes, tree.root) + } + return routes +} + +func iterate(path, method string, routes RoutesInfo, root *node) RoutesInfo { + path += root.path + if len(root.handlers) > 0 { + routes = append(routes, RouteInfo{ + Method: method, + Path: path, + Handler: nameOfFunction(root.handlers.Last()), + }) + } + for _, child := range root.children { + routes = iterate(path, method, routes, child) + } + return routes +} + +// Run attaches the router to a http.Server and starts listening and serving HTTP requests. +// It is a shortcut for http.ListenAndServe(addr, router) +// Note: this method will block the calling goroutine indefinitely unless an error happens. +func (engine *Engine) Run(addr ...string) (err error) { + defer func() { debugPrintError(err) }() + + address := resolveAddress(addr) + debugPrint("Listening and serving HTTP on %s\n", address) + err = http.ListenAndServe(address, engine) + return +} + +// RunTLS attaches the router to a http.Server and starts listening and serving HTTPS (secure) requests. +// It is a shortcut for http.ListenAndServeTLS(addr, certFile, keyFile, router) +// Note: this method will block the calling goroutine indefinitely unless an error happens. +func (engine *Engine) RunTLS(addr string, certFile string, keyFile string) (err error) { + debugPrint("Listening and serving HTTPS on %s\n", addr) + defer func() { debugPrintError(err) }() + + err = http.ListenAndServeTLS(addr, certFile, keyFile, engine) + return +} + +// RunUnix attaches the router to a http.Server and starts listening and serving HTTP requests +// through the specified unix socket (ie. a file). +// Note: this method will block the calling goroutine indefinitely unless an error happens. +func (engine *Engine) RunUnix(file string) (err error) { + debugPrint("Listening and serving HTTP on unix:/%s", file) + defer func() { debugPrintError(err) }() + + os.Remove(file) + listener, err := net.Listen("unix", file) + if err != nil { + return + } + defer listener.Close() + err = http.Serve(listener, engine) + return +} + +// Conforms to the http.Handler interface. +func (engine *Engine) ServeHTTP(w http.ResponseWriter, req *http.Request) { + c := engine.pool.Get().(*Context) + c.writermem.reset(w) + c.Request = req + c.reset() + + engine.handleHTTPRequest(c) + + engine.pool.Put(c) +} + +func (engine *Engine) handleHTTPRequest(context *Context) { + httpMethod := context.Request.Method + path := context.Request.URL.Path + + // Find root of the tree for the given HTTP method + t := engine.trees + for i, tl := 0, len(t); i < tl; i++ { + if t[i].method == httpMethod { + root := t[i].root + // Find route in tree + handlers, params, tsr := root.getValue(path, context.Params) + if handlers != nil { + context.handlers = handlers + context.Params = params + context.Next() + context.writermem.WriteHeaderNow() + return + + } else if httpMethod != "CONNECT" && path != "/" { + if tsr && engine.RedirectTrailingSlash { + redirectTrailingSlash(context) + return + } + if engine.RedirectFixedPath && redirectFixedPath(context, root, engine.RedirectFixedPath) { + return + } + } + break + } + } + + // TODO: unit test + if engine.HandleMethodNotAllowed { + for _, tree := range engine.trees { + if tree.method != httpMethod { + if handlers, _, _ := tree.root.getValue(path, nil); handlers != nil { + context.handlers = engine.allNoMethod + serveError(context, 405, default405Body) + return + } + } + } + } + context.handlers = engine.allNoRoute + serveError(context, 404, default404Body) +} + +var mimePlain = []string{MIMEPlain} + +func serveError(c *Context, code int, defaultMessage []byte) { + c.writermem.status = code + c.Next() + if !c.writermem.Written() { + if c.writermem.Status() == code { + c.writermem.Header()["Content-Type"] = mimePlain + c.Writer.Write(defaultMessage) + } else { + c.writermem.WriteHeaderNow() + } + } +} + +func redirectTrailingSlash(c *Context) { + req := c.Request + path := req.URL.Path + code := 301 // Permanent redirect, request with GET method + if req.Method != "GET" { + code = 307 + } + + if len(path) > 1 && path[len(path)-1] == '/' { + req.URL.Path = path[:len(path)-1] + } else { + req.URL.Path = path + "/" + } + debugPrint("redirecting request %d: %s --> %s", code, path, req.URL.String()) + http.Redirect(c.Writer, req, req.URL.String(), code) + c.writermem.WriteHeaderNow() +} + +func redirectFixedPath(c *Context, root *node, trailingSlash bool) bool { + req := c.Request + path := req.URL.Path + + fixedPath, found := root.findCaseInsensitivePath( + cleanPath(path), + trailingSlash, + ) + if found { + code := 301 // Permanent redirect, request with GET method + if req.Method != "GET" { + code = 307 + } + req.URL.Path = string(fixedPath) + debugPrint("redirecting request %d: %s --> %s", code, path, req.URL.String()) + http.Redirect(c.Writer, req, req.URL.String(), code) + c.writermem.WriteHeaderNow() + return true + } + return false +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/logger.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/logger.go new file mode 100644 index 0000000..c5d4c3e --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/logger.go @@ -0,0 +1,126 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package gin + +import ( + "fmt" + "io" + "time" +) + +var ( + green = string([]byte{27, 91, 57, 55, 59, 52, 50, 109}) + white = string([]byte{27, 91, 57, 48, 59, 52, 55, 109}) + yellow = string([]byte{27, 91, 57, 55, 59, 52, 51, 109}) + red = string([]byte{27, 91, 57, 55, 59, 52, 49, 109}) + blue = string([]byte{27, 91, 57, 55, 59, 52, 52, 109}) + magenta = string([]byte{27, 91, 57, 55, 59, 52, 53, 109}) + cyan = string([]byte{27, 91, 57, 55, 59, 52, 54, 109}) + reset = string([]byte{27, 91, 48, 109}) +) + +func ErrorLogger() HandlerFunc { + return ErrorLoggerT(ErrorTypeAny) +} + +func ErrorLoggerT(typ ErrorType) HandlerFunc { + return func(c *Context) { + c.Next() + // avoid writting if we already wrote into the response body + if !c.Writer.Written() { + errors := c.Errors.ByType(typ) + if len(errors) > 0 { + c.JSON(-1, errors) + } + } + } +} + +// Instances a Logger middleware that will write the logs to gin.DefaultWriter +// By default gin.DefaultWriter = os.Stdout +func Logger() HandlerFunc { + return LoggerWithWriter(DefaultWriter) +} + +// Instance a Logger middleware with the specified writter buffer. +// Example: os.Stdout, a file opened in write mode, a socket... +func LoggerWithWriter(out io.Writer, notlogged ...string) HandlerFunc { + var skip map[string]struct{} + + if length := len(notlogged); length > 0 { + skip = make(map[string]struct{}, length) + + for _, path := range notlogged { + skip[path] = struct{}{} + } + } + + return func(c *Context) { + // Start timer + start := time.Now() + path := c.Request.URL.Path + + // Process request + c.Next() + + // Log only when path is not being skipped + if _, ok := skip[path]; !ok { + // Stop timer + end := time.Now() + latency := end.Sub(start) + + clientIP := c.ClientIP() + method := c.Request.Method + statusCode := c.Writer.Status() + statusColor := colorForStatus(statusCode) + methodColor := colorForMethod(method) + comment := c.Errors.ByType(ErrorTypePrivate).String() + + fmt.Fprintf(out, "[GIN] %v |%s %3d %s| %13v | %s |%s %s %-7s %s\n%s", + end.Format("2006/01/02 - 15:04:05"), + statusColor, statusCode, reset, + latency, + clientIP, + methodColor, reset, method, + path, + comment, + ) + } + } +} + +func colorForStatus(code int) string { + switch { + case code >= 200 && code < 300: + return green + case code >= 300 && code < 400: + return white + case code >= 400 && code < 500: + return yellow + default: + return red + } +} + +func colorForMethod(method string) string { + switch method { + case "GET": + return blue + case "POST": + return cyan + case "PUT": + return yellow + case "DELETE": + return red + case "PATCH": + return green + case "HEAD": + return magenta + case "OPTIONS": + return white + default: + return reset + } +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/logo.jpg b/Godeps/_workspace/src/github.com/gin-gonic/gin/logo.jpg new file mode 100644 index 0000000000000000000000000000000000000000..bb51852e49aa24ab09ff7826b1f6c3dfdc99b16f GIT binary patch literal 12200 zcmbWdcQ~7G|37@i-a+jZHHxBY6eYx{RaLssD%zr`qKZlh32KiRMQv(TYu4Vii?&)+ zY?9bBK}iXI`P}#YyT8Zr{P8@`?{{7~&g*?7=XK_Mz0dP{@3V=s1%Um!p@|^?0s(+A zmb4Z(zij<{~1FC01>VL z&40!`pxpmyl$rl|`agH-JkbBlm`C;B(Ybll|D_iwqk*$6K;6Q{)5p`>#q))z@}KVJ#}_*edg`s`^pdg+CTJ7Sa?KaRCH4E+mzI_cj+1L3kr*hOFoo- z{9IF8SKrXs)ZEqG)7#hobzpF0bnN#yW@2&*i^DH2Ew8MutrK_m_Wv9llKvk3gNwq? zf5W2m|3>!zz{NqqMMXnHO+)_=E)bR9KfpO?XwNIsaq8Zpf9!QmOevUwOD{3Mx|2~{ z`8I+3$;)3%JQ6BcN#Z}y{)O!SAFz=BD`fu#_CL6$0eygmn);s)W#N={)6y}~(@`2L zBNGD?n3bI!%nD}XILF7u!O6?X2Idyx=H=%X6cl9V5{3v1K==d%11gR# z=;>JmIKUhN|HtiYmU1k)&ZYnsY7pfxQF8z=;P@ySkj|s}fA4Dk%sw6NZoZWNX??V) zEdk*%fC1xgmFTO0Oe?P?lXajGWu*3;aIPsauD4d; 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So in contrast to the path package this + // loop has no expensive function calls (except 1x make) + + for r < n { + switch { + case p[r] == '/': + // empty path element, trailing slash is added after the end + r++ + + case p[r] == '.' && r+1 == n: + trailing = true + r++ + + case p[r] == '.' && p[r+1] == '/': + // . element + r++ + + case p[r] == '.' && p[r+1] == '.' && (r+2 == n || p[r+2] == '/'): + // .. element: remove to last / + r += 2 + + if w > 1 { + // can backtrack + w-- + + if buf == nil { + for w > 1 && p[w] != '/' { + w-- + } + } else { + for w > 1 && buf[w] != '/' { + w-- + } + } + } + + default: + // real path element. + // add slash if needed + if w > 1 { + bufApp(&buf, p, w, '/') + w++ + } + + // copy element + for r < n && p[r] != '/' { + bufApp(&buf, p, w, p[r]) + w++ + r++ + } + } + } + + // re-append trailing slash + if trailing && w > 1 { + bufApp(&buf, p, w, '/') + w++ + } + + if buf == nil { + return p[:w] + } + return string(buf[:w]) +} + +// internal helper to lazily create a buffer if necessary +func bufApp(buf *[]byte, s string, w int, c byte) { + if *buf == nil { + if s[w] == c { + return + } + + *buf = make([]byte, len(s)) + copy(*buf, s[:w]) + } + (*buf)[w] = c +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/recovery.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/recovery.go new file mode 100644 index 0000000..c502f35 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/recovery.go @@ -0,0 +1,108 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package gin + +import ( + "bytes" + "fmt" + "io" + "io/ioutil" + "log" + "net/http/httputil" + "runtime" +) + +var ( + dunno = []byte("???") + centerDot = []byte("·") + dot = []byte(".") + slash = []byte("/") +) + +// Recovery returns a middleware that recovers from any panics and writes a 500 if there was one. +func Recovery() HandlerFunc { + return RecoveryWithWriter(DefaultErrorWriter) +} + +func RecoveryWithWriter(out io.Writer) HandlerFunc { + var logger *log.Logger + if out != nil { + logger = log.New(out, "\n\n\x1b[31m", log.LstdFlags) + } + return func(c *Context) { + defer func() { + if err := recover(); err != nil { + if logger != nil { + stack := stack(3) + httprequest, _ := httputil.DumpRequest(c.Request, false) + logger.Printf("[Recovery] panic recovered:\n%s\n%s\n%s%s", string(httprequest), err, stack, reset) + } + c.AbortWithStatus(500) + } + }() + c.Next() + } +} + +// stack returns a nicely formated stack frame, skipping skip frames +func stack(skip int) []byte { + buf := new(bytes.Buffer) // the returned data + // As we loop, we open files and read them. These variables record the currently + // loaded file. + var lines [][]byte + var lastFile string + for i := skip; ; i++ { // Skip the expected number of frames + pc, file, line, ok := runtime.Caller(i) + if !ok { + break + } + // Print this much at least. If we can't find the source, it won't show. + fmt.Fprintf(buf, "%s:%d (0x%x)\n", file, line, pc) + if file != lastFile { + data, err := ioutil.ReadFile(file) + if err != nil { + continue + } + lines = bytes.Split(data, []byte{'\n'}) + lastFile = file + } + fmt.Fprintf(buf, "\t%s: %s\n", function(pc), source(lines, line)) + } + return buf.Bytes() +} + +// source returns a space-trimmed slice of the n'th line. +func source(lines [][]byte, n int) []byte { + n-- // in stack trace, lines are 1-indexed but our array is 0-indexed + if n < 0 || n >= len(lines) { + return dunno + } + return bytes.TrimSpace(lines[n]) +} + +// function returns, if possible, the name of the function containing the PC. +func function(pc uintptr) []byte { + fn := runtime.FuncForPC(pc) + if fn == nil { + return dunno + } + name := []byte(fn.Name()) + // The name includes the path name to the package, which is unnecessary + // since the file name is already included. Plus, it has center dots. + // That is, we see + // runtime/debug.*T·ptrmethod + // and want + // *T.ptrmethod + // Also the package path might contains dot (e.g. code.google.com/...), + // so first eliminate the path prefix + if lastslash := bytes.LastIndex(name, slash); lastslash >= 0 { + name = name[lastslash+1:] + } + if period := bytes.Index(name, dot); period >= 0 { + name = name[period+1:] + } + name = bytes.Replace(name, centerDot, dot, -1) + return name +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/render/data.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/render/data.go new file mode 100644 index 0000000..efa75d5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/render/data.go @@ -0,0 +1,20 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package render + +import "net/http" + +type Data struct { + ContentType string + Data []byte +} + +func (r Data) Render(w http.ResponseWriter) error { + if len(r.ContentType) > 0 { + w.Header()["Content-Type"] = []string{r.ContentType} + } + w.Write(r.Data) + return nil +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/render/html.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/render/html.go new file mode 100644 index 0000000..01f6bf2 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/render/html.go @@ -0,0 +1,67 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package render + +import ( + "html/template" + "net/http" +) + +type ( + HTMLRender interface { + Instance(string, interface{}) Render + } + + HTMLProduction struct { + Template *template.Template + } + + HTMLDebug struct { + Files []string + Glob string + } + + HTML struct { + Template *template.Template + Name string + Data interface{} + } +) + +var htmlContentType = []string{"text/html; charset=utf-8"} + +func (r HTMLProduction) Instance(name string, data interface{}) Render { + return HTML{ + Template: r.Template, + Name: name, + Data: data, + } +} + +func (r HTMLDebug) Instance(name string, data interface{}) Render { + return HTML{ + Template: r.loadTemplate(), + Name: name, + Data: data, + } +} +func (r HTMLDebug) loadTemplate() *template.Template { + if len(r.Files) > 0 { + return template.Must(template.ParseFiles(r.Files...)) + } + if len(r.Glob) > 0 { + return template.Must(template.ParseGlob(r.Glob)) + } + panic("the HTML debug render was created without files or glob pattern") +} + +func (r HTML) Render(w http.ResponseWriter) error { + writeContentType(w, htmlContentType) + if len(r.Name) == 0 { + return r.Template.Execute(w, r.Data) + } else { + return r.Template.ExecuteTemplate(w, r.Name, r.Data) + } +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/render/json.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/render/json.go new file mode 100644 index 0000000..32e6058 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/render/json.go @@ -0,0 +1,41 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package render + +import ( + "encoding/json" + "net/http" +) + +type ( + JSON struct { + Data interface{} + } + + IndentedJSON struct { + Data interface{} + } +) + +var jsonContentType = []string{"application/json; charset=utf-8"} + +func (r JSON) Render(w http.ResponseWriter) error { + return WriteJSON(w, r.Data) +} + +func (r IndentedJSON) Render(w http.ResponseWriter) error { + writeContentType(w, jsonContentType) + jsonBytes, err := json.MarshalIndent(r.Data, "", " ") + if err != nil { + return err + } + w.Write(jsonBytes) + return nil +} + +func WriteJSON(w http.ResponseWriter, obj interface{}) error { + writeContentType(w, jsonContentType) + return json.NewEncoder(w).Encode(obj) +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/render/redirect.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/render/redirect.go new file mode 100644 index 0000000..bd48d7d --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/render/redirect.go @@ -0,0 +1,24 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package render + +import ( + "fmt" + "net/http" +) + +type Redirect struct { + Code int + Request *http.Request + Location string +} + +func (r Redirect) Render(w http.ResponseWriter) error { + if (r.Code < 300 || r.Code > 308) && r.Code != 201 { + panic(fmt.Sprintf("Cannot redirect with status code %d", r.Code)) + } + http.Redirect(w, r.Request, r.Location, r.Code) + return nil +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/render/render.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/render/render.go new file mode 100644 index 0000000..994fcd7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/render/render.go @@ -0,0 +1,30 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package render + +import "net/http" + +type Render interface { + Render(http.ResponseWriter) error +} + +var ( + _ Render = JSON{} + _ Render = IndentedJSON{} + _ Render = XML{} + _ Render = String{} + _ Render = Redirect{} + _ Render = Data{} + _ Render = HTML{} + _ HTMLRender = HTMLDebug{} + _ HTMLRender = HTMLProduction{} +) + +func writeContentType(w http.ResponseWriter, value []string) { + header := w.Header() + if val := header["Content-Type"]; len(val) == 0 { + header["Content-Type"] = value + } +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/render/text.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/render/text.go new file mode 100644 index 0000000..5a9e280 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/render/text.go @@ -0,0 +1,33 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package render + +import ( + "fmt" + "io" + "net/http" +) + +type String struct { + Format string + Data []interface{} +} + +var plainContentType = []string{"text/plain; charset=utf-8"} + +func (r String) Render(w http.ResponseWriter) error { + WriteString(w, r.Format, r.Data) + return nil +} + +func WriteString(w http.ResponseWriter, format string, data []interface{}) { + writeContentType(w, plainContentType) + + if len(data) > 0 { + fmt.Fprintf(w, format, data...) + } else { + io.WriteString(w, format) + } +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/render/xml.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/render/xml.go new file mode 100644 index 0000000..be22e6f --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/render/xml.go @@ -0,0 +1,21 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package render + +import ( + "encoding/xml" + "net/http" +) + +type XML struct { + Data interface{} +} + +var xmlContentType = []string{"application/xml; charset=utf-8"} + +func (r XML) Render(w http.ResponseWriter) error { + writeContentType(w, xmlContentType) + return xml.NewEncoder(w).Encode(r.Data) +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/response_writer.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/response_writer.go new file mode 100644 index 0000000..fcbe230 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/response_writer.go @@ -0,0 +1,116 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package gin + +import ( + "bufio" + "io" + "net" + "net/http" +) + +const ( + noWritten = -1 + defaultStatus = 200 +) + +type ( + ResponseWriter interface { + http.ResponseWriter + http.Hijacker + http.Flusher + http.CloseNotifier + + // Returns the HTTP response status code of the current request. + Status() int + + // Returns the number of bytes already written into the response http body. + // See Written() + Size() int + + // Writes the string into the response body. + WriteString(string) (int, error) + + // Returns true if the response body was already written. + Written() bool + + // Forces to write the http header (status code + headers). + WriteHeaderNow() + } + + responseWriter struct { + http.ResponseWriter + size int + status int + } +) + +var _ ResponseWriter = &responseWriter{} + +func (w *responseWriter) reset(writer http.ResponseWriter) { + w.ResponseWriter = writer + w.size = noWritten + w.status = defaultStatus +} + +func (w *responseWriter) WriteHeader(code int) { + if code > 0 && w.status != code { + if w.Written() { + debugPrint("[WARNING] Headers were already written. Wanted to override status code %d with %d", w.status, code) + } + w.status = code + } +} + +func (w *responseWriter) WriteHeaderNow() { + if !w.Written() { + w.size = 0 + w.ResponseWriter.WriteHeader(w.status) + } +} + +func (w *responseWriter) Write(data []byte) (n int, err error) { + w.WriteHeaderNow() + n, err = w.ResponseWriter.Write(data) + w.size += n + return +} + +func (w *responseWriter) WriteString(s string) (n int, err error) { + w.WriteHeaderNow() + n, err = io.WriteString(w.ResponseWriter, s) + w.size += n + return +} + +func (w *responseWriter) Status() int { + return w.status +} + +func (w *responseWriter) Size() int { + return w.size +} + +func (w *responseWriter) Written() bool { + return w.size != noWritten +} + +// Implements the http.Hijacker interface +func (w *responseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) { + if w.size < 0 { + w.size = 0 + } + return w.ResponseWriter.(http.Hijacker).Hijack() +} + +// Implements the http.CloseNotify interface +func (w *responseWriter) CloseNotify() <-chan bool { + return w.ResponseWriter.(http.CloseNotifier).CloseNotify() +} + +// Implements the http.Flush interface +func (w *responseWriter) Flush() { + w.ResponseWriter.(http.Flusher).Flush() +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/routergroup.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/routergroup.go new file mode 100644 index 0000000..f22729b --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/routergroup.go @@ -0,0 +1,215 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package gin + +import ( + "net/http" + "path" + "regexp" + "strings" +) + +type ( + IRouter interface { + IRoutes + Group(string, ...HandlerFunc) *RouterGroup + } + + IRoutes interface { + Use(...HandlerFunc) IRoutes + + Handle(string, string, ...HandlerFunc) IRoutes + Any(string, ...HandlerFunc) IRoutes + GET(string, ...HandlerFunc) IRoutes + POST(string, ...HandlerFunc) IRoutes + DELETE(string, ...HandlerFunc) IRoutes + PATCH(string, ...HandlerFunc) IRoutes + PUT(string, ...HandlerFunc) IRoutes + OPTIONS(string, ...HandlerFunc) IRoutes + HEAD(string, ...HandlerFunc) IRoutes + + StaticFile(string, string) IRoutes + Static(string, string) IRoutes + StaticFS(string, http.FileSystem) IRoutes + } + + // RouterGroup is used internally to configure router, a RouterGroup is associated with a prefix + // and an array of handlers (middleware) + RouterGroup struct { + Handlers HandlersChain + basePath string + engine *Engine + root bool + } +) + +var _ IRouter = &RouterGroup{} + +// Use adds middleware to the group, see example code in github. +func (group *RouterGroup) Use(middleware ...HandlerFunc) IRoutes { + group.Handlers = append(group.Handlers, middleware...) + return group.returnObj() +} + +// Group creates a new router group. You should add all the routes that have common middlwares or the same path prefix. +// For example, all the routes that use a common middlware for authorization could be grouped. +func (group *RouterGroup) Group(relativePath string, handlers ...HandlerFunc) *RouterGroup { + return &RouterGroup{ + Handlers: group.combineHandlers(handlers), + basePath: group.calculateAbsolutePath(relativePath), + engine: group.engine, + } +} + +func (group *RouterGroup) BasePath() string { + return group.basePath +} + +func (group *RouterGroup) handle(httpMethod, relativePath string, handlers HandlersChain) IRoutes { + absolutePath := group.calculateAbsolutePath(relativePath) + handlers = group.combineHandlers(handlers) + group.engine.addRoute(httpMethod, absolutePath, handlers) + return group.returnObj() +} + +// Handle registers a new request handle and middleware with the given path and method. +// The last handler should be the real handler, the other ones should be middleware that can and should be shared among different routes. +// See the example code in github. +// +// For GET, POST, PUT, PATCH and DELETE requests the respective shortcut +// functions can be used. +// +// This function is intended for bulk loading and to allow the usage of less +// frequently used, non-standardized or custom methods (e.g. for internal +// communication with a proxy). +func (group *RouterGroup) Handle(httpMethod, relativePath string, handlers ...HandlerFunc) IRoutes { + if matches, err := regexp.MatchString("^[A-Z]+$", httpMethod); !matches || err != nil { + panic("http method " + httpMethod + " is not valid") + } + return group.handle(httpMethod, relativePath, handlers) +} + +// POST is a shortcut for router.Handle("POST", path, handle) +func (group *RouterGroup) POST(relativePath string, handlers ...HandlerFunc) IRoutes { + return group.handle("POST", relativePath, handlers) +} + +// GET is a shortcut for router.Handle("GET", path, handle) +func (group *RouterGroup) GET(relativePath string, handlers ...HandlerFunc) IRoutes { + return group.handle("GET", relativePath, handlers) +} + +// DELETE is a shortcut for router.Handle("DELETE", path, handle) +func (group *RouterGroup) DELETE(relativePath string, handlers ...HandlerFunc) IRoutes { + return group.handle("DELETE", relativePath, handlers) +} + +// PATCH is a shortcut for router.Handle("PATCH", path, handle) +func (group *RouterGroup) PATCH(relativePath string, handlers ...HandlerFunc) IRoutes { + return group.handle("PATCH", relativePath, handlers) +} + +// PUT is a shortcut for router.Handle("PUT", path, handle) +func (group *RouterGroup) PUT(relativePath string, handlers ...HandlerFunc) IRoutes { + return group.handle("PUT", relativePath, handlers) +} + +// OPTIONS is a shortcut for router.Handle("OPTIONS", path, handle) +func (group *RouterGroup) OPTIONS(relativePath string, handlers ...HandlerFunc) IRoutes { + return group.handle("OPTIONS", relativePath, handlers) +} + +// HEAD is a shortcut for router.Handle("HEAD", path, handle) +func (group *RouterGroup) HEAD(relativePath string, handlers ...HandlerFunc) IRoutes { + return group.handle("HEAD", relativePath, handlers) +} + +// Any registers a route that matches all the HTTP methods. +// GET, POST, PUT, PATCH, HEAD, OPTIONS, DELETE, CONNECT, TRACE +func (group *RouterGroup) Any(relativePath string, handlers ...HandlerFunc) IRoutes { + group.handle("GET", relativePath, handlers) + group.handle("POST", relativePath, handlers) + group.handle("PUT", relativePath, handlers) + group.handle("PATCH", relativePath, handlers) + group.handle("HEAD", relativePath, handlers) + group.handle("OPTIONS", relativePath, handlers) + group.handle("DELETE", relativePath, handlers) + group.handle("CONNECT", relativePath, handlers) + group.handle("TRACE", relativePath, handlers) + return group.returnObj() +} + +// StaticFile registers a single route in order to server a single file of the local filesystem. +// router.StaticFile("favicon.ico", "./resources/favicon.ico") +func (group *RouterGroup) StaticFile(relativePath, filepath string) IRoutes { + if strings.Contains(relativePath, ":") || strings.Contains(relativePath, "*") { + panic("URL parameters can not be used when serving a static file") + } + handler := func(c *Context) { + c.File(filepath) + } + group.GET(relativePath, handler) + group.HEAD(relativePath, handler) + return group.returnObj() +} + +// Static serves files from the given file system root. +// Internally a http.FileServer is used, therefore http.NotFound is used instead +// of the Router's NotFound handler. +// To use the operating system's file system implementation, +// use : +// router.Static("/static", "/var/www") +func (group *RouterGroup) Static(relativePath, root string) IRoutes { + return group.StaticFS(relativePath, Dir(root, false)) +} + +// StaticFS works just like `Static()` but a custom `http.FileSystem` can be used instead. +// Gin by default user: gin.Dir() +func (group *RouterGroup) StaticFS(relativePath string, fs http.FileSystem) IRoutes { + if strings.Contains(relativePath, ":") || strings.Contains(relativePath, "*") { + panic("URL parameters can not be used when serving a static folder") + } + handler := group.createStaticHandler(relativePath, fs) + urlPattern := path.Join(relativePath, "/*filepath") + + // Register GET and HEAD handlers + group.GET(urlPattern, handler) + group.HEAD(urlPattern, handler) + return group.returnObj() +} + +func (group *RouterGroup) createStaticHandler(relativePath string, fs http.FileSystem) HandlerFunc { + absolutePath := group.calculateAbsolutePath(relativePath) + fileServer := http.StripPrefix(absolutePath, http.FileServer(fs)) + _, nolisting := fs.(*onlyfilesFS) + return func(c *Context) { + if nolisting { + c.Writer.WriteHeader(404) + } + fileServer.ServeHTTP(c.Writer, c.Request) + } +} + +func (group *RouterGroup) combineHandlers(handlers HandlersChain) HandlersChain { + finalSize := len(group.Handlers) + len(handlers) + if finalSize >= int(abortIndex) { + panic("too many handlers") + } + mergedHandlers := make(HandlersChain, finalSize) + copy(mergedHandlers, group.Handlers) + copy(mergedHandlers[len(group.Handlers):], handlers) + return mergedHandlers +} + +func (group *RouterGroup) calculateAbsolutePath(relativePath string) string { + return joinPaths(group.basePath, relativePath) +} + +func (group *RouterGroup) returnObj() IRoutes { + if group.root { + return group.engine + } + return group +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/test_helpers.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/test_helpers.go new file mode 100644 index 0000000..7d8020c --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/test_helpers.go @@ -0,0 +1,14 @@ +package gin + +import ( + "net/http/httptest" +) + +func CreateTestContext() (c *Context, w *httptest.ResponseRecorder, r *Engine) { + w = httptest.NewRecorder() + r = New() + c = r.allocateContext() + c.reset() + c.writermem.reset(w) + return +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/tree.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/tree.go new file mode 100644 index 0000000..4f2082e --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/tree.go @@ -0,0 +1,603 @@ +// Copyright 2013 Julien Schmidt. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be found +// in the LICENSE file. + +package gin + +import ( + "strings" + "unicode" +) + +// Param is a single URL parameter, consisting of a key and a value. +type Param struct { + Key string + Value string +} + +// Params is a Param-slice, as returned by the router. +// The slice is ordered, the first URL parameter is also the first slice value. +// It is therefore safe to read values by the index. +type Params []Param + +// ByName returns the value of the first Param which key matches the given name. +// If no matching Param is found, an empty string is returned. +func (ps Params) Get(name string) (string, bool) { + for _, entry := range ps { + if entry.Key == name { + return entry.Value, true + } + } + return "", false +} + +func (ps Params) ByName(name string) (va string) { + va, _ = ps.Get(name) + return +} + +type methodTree struct { + method string + root *node +} + +type methodTrees []methodTree + +func (trees methodTrees) get(method string) *node { + for _, tree := range trees { + if tree.method == method { + return tree.root + } + } + return nil +} + +func min(a, b int) int { + if a <= b { + return a + } + return b +} + +func countParams(path string) uint8 { + var n uint + for i := 0; i < len(path); i++ { + if path[i] != ':' && path[i] != '*' { + continue + } + n++ + } + if n >= 255 { + return 255 + } + return uint8(n) +} + +type nodeType uint8 + +const ( + static nodeType = iota // default + root + param + catchAll +) + +type node struct { + path string + wildChild bool + nType nodeType + maxParams uint8 + indices string + children []*node + handlers HandlersChain + priority uint32 +} + +// increments priority of the given child and reorders if necessary +func (n *node) incrementChildPrio(pos int) int { + n.children[pos].priority++ + prio := n.children[pos].priority + + // adjust position (move to front) + newPos := pos + for newPos > 0 && n.children[newPos-1].priority < prio { + // swap node positions + tmpN := n.children[newPos-1] + n.children[newPos-1] = n.children[newPos] + n.children[newPos] = tmpN + + newPos-- + } + + // build new index char string + if newPos != pos { + n.indices = n.indices[:newPos] + // unchanged prefix, might be empty + n.indices[pos:pos+1] + // the index char we move + n.indices[newPos:pos] + n.indices[pos+1:] // rest without char at 'pos' + } + + return newPos +} + +// addRoute adds a node with the given handle to the path. +// Not concurrency-safe! +func (n *node) addRoute(path string, handlers HandlersChain) { + fullPath := path + n.priority++ + numParams := countParams(path) + + // non-empty tree + if len(n.path) > 0 || len(n.children) > 0 { + walk: + for { + // Update maxParams of the current node + if numParams > n.maxParams { + n.maxParams = numParams + } + + // Find the longest common prefix. + // This also implies that the common prefix contains no ':' or '*' + // since the existing key can't contain those chars. + i := 0 + max := min(len(path), len(n.path)) + for i < max && path[i] == n.path[i] { + i++ + } + + // Split edge + if i < len(n.path) { + child := node{ + path: n.path[i:], + wildChild: n.wildChild, + indices: n.indices, + children: n.children, + handlers: n.handlers, + priority: n.priority - 1, + } + + // Update maxParams (max of all children) + for i := range child.children { + if child.children[i].maxParams > child.maxParams { + child.maxParams = child.children[i].maxParams + } + } + + n.children = []*node{&child} + // []byte for proper unicode char conversion, see #65 + n.indices = string([]byte{n.path[i]}) + n.path = path[:i] + n.handlers = nil + n.wildChild = false + } + + // Make new node a child of this node + if i < len(path) { + path = path[i:] + + if n.wildChild { + n = n.children[0] + n.priority++ + + // Update maxParams of the child node + if numParams > n.maxParams { + n.maxParams = numParams + } + numParams-- + + // Check if the wildcard matches + if len(path) >= len(n.path) && n.path == path[:len(n.path)] { + // check for longer wildcard, e.g. :name and :names + if len(n.path) >= len(path) || path[len(n.path)] == '/' { + continue walk + } + } + + panic("path segment '" + path + + "' conflicts with existing wildcard '" + n.path + + "' in path '" + fullPath + "'") + } + + c := path[0] + + // slash after param + if n.nType == param && c == '/' && len(n.children) == 1 { + n = n.children[0] + n.priority++ + continue walk + } + + // Check if a child with the next path byte exists + for i := 0; i < len(n.indices); i++ { + if c == n.indices[i] { + i = n.incrementChildPrio(i) + n = n.children[i] + continue walk + } + } + + // Otherwise insert it + if c != ':' && c != '*' { + // []byte for proper unicode char conversion, see #65 + n.indices += string([]byte{c}) + child := &node{ + maxParams: numParams, + } + n.children = append(n.children, child) + n.incrementChildPrio(len(n.indices) - 1) + n = child + } + n.insertChild(numParams, path, fullPath, handlers) + return + + } else if i == len(path) { // Make node a (in-path) leaf + if n.handlers != nil { + panic("handlers are already registered for path ''" + fullPath + "'") + } + n.handlers = handlers + } + return + } + } else { // Empty tree + n.insertChild(numParams, path, fullPath, handlers) + n.nType = root + } +} + +func (n *node) insertChild(numParams uint8, path string, fullPath string, handlers HandlersChain) { + var offset int // already handled bytes of the path + + // find prefix until first wildcard (beginning with ':'' or '*'') + for i, max := 0, len(path); numParams > 0; i++ { + c := path[i] + if c != ':' && c != '*' { + continue + } + + // find wildcard end (either '/' or path end) + end := i + 1 + for end < max && path[end] != '/' { + switch path[end] { + // the wildcard name must not contain ':' and '*' + case ':', '*': + panic("only one wildcard per path segment is allowed, has: '" + + path[i:] + "' in path '" + fullPath + "'") + default: + end++ + } + } + + // check if this Node existing children which would be + // unreachable if we insert the wildcard here + if len(n.children) > 0 { + panic("wildcard route '" + path[i:end] + + "' conflicts with existing children in path '" + fullPath + "'") + } + + // check if the wildcard has a name + if end-i < 2 { + panic("wildcards must be named with a non-empty name in path '" + fullPath + "'") + } + + if c == ':' { // param + // split path at the beginning of the wildcard + if i > 0 { + n.path = path[offset:i] + offset = i + } + + child := &node{ + nType: param, + maxParams: numParams, + } + n.children = []*node{child} + n.wildChild = true + n = child + n.priority++ + numParams-- + + // if the path doesn't end with the wildcard, then there + // will be another non-wildcard subpath starting with '/' + if end < max { + n.path = path[offset:end] + offset = end + + child := &node{ + maxParams: numParams, + priority: 1, + } + n.children = []*node{child} + n = child + } + + } else { // catchAll + if end != max || numParams > 1 { + panic("catch-all routes are only allowed at the end of the path in path '" + fullPath + "'") + } + + if len(n.path) > 0 && n.path[len(n.path)-1] == '/' { + panic("catch-all conflicts with existing handle for the path segment root in path '" + fullPath + "'") + } + + // currently fixed width 1 for '/' + i-- + if path[i] != '/' { + panic("no / before catch-all in path '" + fullPath + "'") + } + + n.path = path[offset:i] + + // first node: catchAll node with empty path + child := &node{ + wildChild: true, + nType: catchAll, + maxParams: 1, + } + n.children = []*node{child} + n.indices = string(path[i]) + n = child + n.priority++ + + // second node: node holding the variable + child = &node{ + path: path[i:], + nType: catchAll, + maxParams: 1, + handlers: handlers, + priority: 1, + } + n.children = []*node{child} + + return + } + } + + // insert remaining path part and handle to the leaf + n.path = path[offset:] + n.handlers = handlers +} + +// Returns the handle registered with the given path (key). The values of +// wildcards are saved to a map. +// If no handle can be found, a TSR (trailing slash redirect) recommendation is +// made if a handle exists with an extra (without the) trailing slash for the +// given path. +func (n *node) getValue(path string, po Params) (handlers HandlersChain, p Params, tsr bool) { + p = po +walk: // Outer loop for walking the tree + for { + if len(path) > len(n.path) { + if path[:len(n.path)] == n.path { + path = path[len(n.path):] + // If this node does not have a wildcard (param or catchAll) + // child, we can just look up the next child node and continue + // to walk down the tree + if !n.wildChild { + c := path[0] + for i := 0; i < len(n.indices); i++ { + if c == n.indices[i] { + n = n.children[i] + continue walk + } + } + + // Nothing found. + // We can recommend to redirect to the same URL without a + // trailing slash if a leaf exists for that path. + tsr = (path == "/" && n.handlers != nil) + return + } + + // handle wildcard child + n = n.children[0] + switch n.nType { + case param: + // find param end (either '/' or path end) + end := 0 + for end < len(path) && path[end] != '/' { + end++ + } + + // save param value + if cap(p) < int(n.maxParams) { + p = make(Params, 0, n.maxParams) + } + i := len(p) + p = p[:i+1] // expand slice within preallocated capacity + p[i].Key = n.path[1:] + p[i].Value = path[:end] + + // we need to go deeper! + if end < len(path) { + if len(n.children) > 0 { + path = path[end:] + n = n.children[0] + continue walk + } + + // ... but we can't + tsr = (len(path) == end+1) + return + } + + if handlers = n.handlers; handlers != nil { + return + } else if len(n.children) == 1 { + // No handle found. Check if a handle for this path + a + // trailing slash exists for TSR recommendation + n = n.children[0] + tsr = (n.path == "/" && n.handlers != nil) + } + + return + + case catchAll: + // save param value + if cap(p) < int(n.maxParams) { + p = make(Params, 0, n.maxParams) + } + i := len(p) + p = p[:i+1] // expand slice within preallocated capacity + p[i].Key = n.path[2:] + p[i].Value = path + + handlers = n.handlers + return + + default: + panic("invalid node type") + } + } + } else if path == n.path { + // We should have reached the node containing the handle. + // Check if this node has a handle registered. + if handlers = n.handlers; handlers != nil { + return + } + + if path == "/" && n.wildChild && n.nType != root { + tsr = true + return + } + + // No handle found. Check if a handle for this path + a + // trailing slash exists for trailing slash recommendation + for i := 0; i < len(n.indices); i++ { + if n.indices[i] == '/' { + n = n.children[i] + tsr = (len(n.path) == 1 && n.handlers != nil) || + (n.nType == catchAll && n.children[0].handlers != nil) + return + } + } + + return + } + + // Nothing found. We can recommend to redirect to the same URL with an + // extra trailing slash if a leaf exists for that path + tsr = (path == "/") || + (len(n.path) == len(path)+1 && n.path[len(path)] == '/' && + path == n.path[:len(n.path)-1] && n.handlers != nil) + return + } +} + +// Makes a case-insensitive lookup of the given path and tries to find a handler. +// It can optionally also fix trailing slashes. +// It returns the case-corrected path and a bool indicating whether the lookup +// was successful. +func (n *node) findCaseInsensitivePath(path string, fixTrailingSlash bool) (ciPath []byte, found bool) { + ciPath = make([]byte, 0, len(path)+1) // preallocate enough memory + + // Outer loop for walking the tree + for len(path) >= len(n.path) && strings.ToLower(path[:len(n.path)]) == strings.ToLower(n.path) { + path = path[len(n.path):] + ciPath = append(ciPath, n.path...) + + if len(path) > 0 { + // If this node does not have a wildcard (param or catchAll) child, + // we can just look up the next child node and continue to walk down + // the tree + if !n.wildChild { + r := unicode.ToLower(rune(path[0])) + for i, index := range n.indices { + // must use recursive approach since both index and + // ToLower(index) could exist. We must check both. + if r == unicode.ToLower(index) { + out, found := n.children[i].findCaseInsensitivePath(path, fixTrailingSlash) + if found { + return append(ciPath, out...), true + } + } + } + + // Nothing found. We can recommend to redirect to the same URL + // without a trailing slash if a leaf exists for that path + found = (fixTrailingSlash && path == "/" && n.handlers != nil) + return + } + + n = n.children[0] + switch n.nType { + case param: + // find param end (either '/' or path end) + k := 0 + for k < len(path) && path[k] != '/' { + k++ + } + + // add param value to case insensitive path + ciPath = append(ciPath, path[:k]...) + + // we need to go deeper! + if k < len(path) { + if len(n.children) > 0 { + path = path[k:] + n = n.children[0] + continue + } + + // ... but we can't + if fixTrailingSlash && len(path) == k+1 { + return ciPath, true + } + return + } + + if n.handlers != nil { + return ciPath, true + } else if fixTrailingSlash && len(n.children) == 1 { + // No handle found. Check if a handle for this path + a + // trailing slash exists + n = n.children[0] + if n.path == "/" && n.handlers != nil { + return append(ciPath, '/'), true + } + } + return + + case catchAll: + return append(ciPath, path...), true + + default: + panic("invalid node type") + } + } else { + // We should have reached the node containing the handle. + // Check if this node has a handle registered. + if n.handlers != nil { + return ciPath, true + } + + // No handle found. + // Try to fix the path by adding a trailing slash + if fixTrailingSlash { + for i := 0; i < len(n.indices); i++ { + if n.indices[i] == '/' { + n = n.children[i] + if (len(n.path) == 1 && n.handlers != nil) || + (n.nType == catchAll && n.children[0].handlers != nil) { + return append(ciPath, '/'), true + } + return + } + } + } + return + } + } + + // Nothing found. + // Try to fix the path by adding / removing a trailing slash + if fixTrailingSlash { + if path == "/" { + return ciPath, true + } + if len(path)+1 == len(n.path) && n.path[len(path)] == '/' && + strings.ToLower(path) == strings.ToLower(n.path[:len(path)]) && + n.handlers != nil { + return append(ciPath, n.path...), true + } + } + return +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/utils.go b/Godeps/_workspace/src/github.com/gin-gonic/gin/utils.go new file mode 100644 index 0000000..2814791 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/utils.go @@ -0,0 +1,155 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package gin + +import ( + "encoding/xml" + "net/http" + "os" + "path" + "reflect" + "runtime" + "strings" +) + +const BindKey = "_gin-gonic/gin/bindkey" + +func Bind(val interface{}) HandlerFunc { + value := reflect.ValueOf(val) + if value.Kind() == reflect.Ptr { + panic(`Bind struct can not be a pointer. Example: + Use: gin.Bind(Struct{}) instead of gin.Bind(&Struct{}) +`) + } + typ := value.Type() + + return func(c *Context) { + obj := reflect.New(typ).Interface() + if c.Bind(obj) == nil { + c.Set(BindKey, obj) + } + } +} + +func WrapF(f http.HandlerFunc) HandlerFunc { + return func(c *Context) { + f(c.Writer, c.Request) + } +} + +func WrapH(h http.Handler) HandlerFunc { + return func(c *Context) { + h.ServeHTTP(c.Writer, c.Request) + } +} + +type H map[string]interface{} + +// Allows type H to be used with xml.Marshal +func (h H) MarshalXML(e *xml.Encoder, start xml.StartElement) error { + start.Name = xml.Name{ + Space: "", + Local: "map", + } + if err := e.EncodeToken(start); err != nil { + return err + } + for key, value := range h { + elem := xml.StartElement{ + Name: xml.Name{Space: "", Local: key}, + Attr: []xml.Attr{}, + } + if err := e.EncodeElement(value, elem); err != nil { + return err + } + } + if err := e.EncodeToken(xml.EndElement{Name: start.Name}); err != nil { + return err + } + return nil +} + +func assert1(guard bool, text string) { + if !guard { + panic(text) + } +} + +func filterFlags(content string) string { + for i, char := range content { + if char == ' ' || char == ';' { + return content[:i] + } + } + return content +} + +func chooseData(custom, wildcard interface{}) interface{} { + if custom == nil { + if wildcard == nil { + panic("negotiation config is invalid") + } + return wildcard + } + return custom +} + +func parseAccept(acceptHeader string) []string { + parts := strings.Split(acceptHeader, ",") + out := make([]string, 0, len(parts)) + for _, part := range parts { + index := strings.IndexByte(part, ';') + if index >= 0 { + part = part[0:index] + } + part = strings.TrimSpace(part) + if len(part) > 0 { + out = append(out, part) + } + } + return out +} + +func lastChar(str string) uint8 { + size := len(str) + if size == 0 { + panic("The length of the string can't be 0") + } + return str[size-1] +} + +func nameOfFunction(f interface{}) string { + return runtime.FuncForPC(reflect.ValueOf(f).Pointer()).Name() +} + +func joinPaths(absolutePath, relativePath string) string { + if len(relativePath) == 0 { + return absolutePath + } + + finalPath := path.Join(absolutePath, relativePath) + appendSlash := lastChar(relativePath) == '/' && lastChar(finalPath) != '/' + if appendSlash { + return finalPath + "/" + } + return finalPath +} + +func resolveAddress(addr []string) string { + switch len(addr) { + case 0: + if port := os.Getenv("PORT"); len(port) > 0 { + debugPrint("Environment variable PORT=\"%s\"", port) + return ":" + port + } else { + debugPrint("Environment variable PORT is undefined. Using port :8080 by default") + return ":8080" + } + case 1: + return addr[0] + default: + panic("too much parameters") + } +} diff --git a/Godeps/_workspace/src/github.com/gin-gonic/gin/wercker.yml b/Godeps/_workspace/src/github.com/gin-gonic/gin/wercker.yml new file mode 100644 index 0000000..3ab8084 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gin-gonic/gin/wercker.yml @@ -0,0 +1 @@ +box: wercker/default \ No newline at end of file diff --git a/Godeps/_workspace/src/github.com/go-ini/ini/.gitignore b/Godeps/_workspace/src/github.com/go-ini/ini/.gitignore new file mode 100644 index 0000000..7adca94 --- /dev/null +++ b/Godeps/_workspace/src/github.com/go-ini/ini/.gitignore @@ -0,0 +1,4 @@ +testdata/conf_out.ini +ini.sublime-project +ini.sublime-workspace +testdata/conf_reflect.ini diff --git a/Godeps/_workspace/src/github.com/go-ini/ini/LICENSE b/Godeps/_workspace/src/github.com/go-ini/ini/LICENSE new file mode 100644 index 0000000..37ec93a --- /dev/null +++ b/Godeps/_workspace/src/github.com/go-ini/ini/LICENSE @@ -0,0 +1,191 @@ +Apache License +Version 2.0, January 2004 +http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. 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We also +recommend that a file or class name and description of purpose be included on +the same "printed page" as the copyright notice for easier identification within +third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/Godeps/_workspace/src/github.com/go-ini/ini/README.md b/Godeps/_workspace/src/github.com/go-ini/ini/README.md new file mode 100644 index 0000000..7d50639 --- /dev/null +++ b/Godeps/_workspace/src/github.com/go-ini/ini/README.md @@ -0,0 +1,624 @@ +ini [![Build Status](https://drone.io/github.com/go-ini/ini/status.png)](https://drone.io/github.com/go-ini/ini/latest) [![](http://gocover.io/_badge/github.com/go-ini/ini)](http://gocover.io/github.com/go-ini/ini) +=== + +![](https://avatars0.githubusercontent.com/u/10216035?v=3&s=200) + +Package ini provides INI file read and write functionality in Go. + +[简体中文](README_ZH.md) + +## Feature + +- Load multiple data sources(`[]byte` or file) with overwrites. +- Read with recursion values. +- Read with parent-child sections. +- Read with auto-increment key names. +- Read with multiple-line values. +- Read with tons of helper methods. +- Read and convert values to Go types. +- Read and **WRITE** comments of sections and keys. +- Manipulate sections, keys and comments with ease. +- Keep sections and keys in order as you parse and save. + +## Installation + +To use a tagged revision: + + go get gopkg.in/ini.v1 + +To use with latest changes: + + go get github.com/go-ini/ini + +Please add `-u` flag to update in the future. + +### Testing + +If you want to test on your machine, please apply `-t` flag: + + go get -t gopkg.in/ini.v1 + +Please add `-u` flag to update in the future. + +## Getting Started + +### Loading from data sources + +A **Data Source** is either raw data in type `[]byte` or a file name with type `string` and you can load **as many as** data sources you want. Passing other types will simply return an error. + +```go +cfg, err := ini.Load([]byte("raw data"), "filename") +``` + +Or start with an empty object: + +```go +cfg := ini.Empty() +``` + +When you cannot decide how many data sources to load at the beginning, you still able to **Append()** them later. + +```go +err := cfg.Append("other file", []byte("other raw data")) +``` + +### Working with sections + +To get a section, you would need to: + +```go +section, err := cfg.GetSection("section name") +``` + +For a shortcut for default section, just give an empty string as name: + +```go +section, err := cfg.GetSection("") +``` + +When you're pretty sure the section exists, following code could make your life easier: + +```go +section := cfg.Section("") +``` + +What happens when the section somehow does not exist? Don't panic, it automatically creates and returns a new section to you. + +To create a new section: + +```go +err := cfg.NewSection("new section") +``` + +To get a list of sections or section names: + +```go +sections := cfg.Sections() +names := cfg.SectionStrings() +``` + +### Working with keys + +To get a key under a section: + +```go +key, err := cfg.Section("").GetKey("key name") +``` + +Same rule applies to key operations: + +```go +key := cfg.Section("").Key("key name") +``` + +To check if a key exists: + +```go +yes := cfg.Section("").HasKey("key name") +``` + +To create a new key: + +```go +err := cfg.Section("").NewKey("name", "value") +``` + +To get a list of keys or key names: + +```go +keys := cfg.Section("").Keys() +names := cfg.Section("").KeyStrings() +``` + +To get a clone hash of keys and corresponding values: + +```go +hash := cfg.GetSection("").KeysHash() +``` + +### Working with values + +To get a string value: + +```go +val := cfg.Section("").Key("key name").String() +``` + +To validate key value on the fly: + +```go +val := cfg.Section("").Key("key name").Validate(func(in string) string { + if len(in) == 0 { + return "default" + } + return in +}) +``` + +If you do not want any auto-transformation (such as recursive read) for the values, you can get raw value directly (this way you get much better performance): + +```go +val := cfg.Section("").Key("key name").Value() +``` + +To check if raw value exists: + +```go +yes := cfg.Section("").HasValue("test value") +``` + +To get value with types: + +```go +// For boolean values: +// true when value is: 1, t, T, TRUE, true, True, YES, yes, Yes, y, ON, on, On +// false when value is: 0, f, F, FALSE, false, False, NO, no, No, n, OFF, off, Off +v, err = cfg.Section("").Key("BOOL").Bool() +v, err = cfg.Section("").Key("FLOAT64").Float64() +v, err = cfg.Section("").Key("INT").Int() +v, err = cfg.Section("").Key("INT64").Int64() +v, err = cfg.Section("").Key("UINT").Uint() +v, err = cfg.Section("").Key("UINT64").Uint64() +v, err = cfg.Section("").Key("TIME").TimeFormat(time.RFC3339) +v, err = cfg.Section("").Key("TIME").Time() // RFC3339 + +v = cfg.Section("").Key("BOOL").MustBool() +v = cfg.Section("").Key("FLOAT64").MustFloat64() +v = cfg.Section("").Key("INT").MustInt() +v = cfg.Section("").Key("INT64").MustInt64() +v = cfg.Section("").Key("UINT").MustUint() +v = cfg.Section("").Key("UINT64").MustUint64() +v = cfg.Section("").Key("TIME").MustTimeFormat(time.RFC3339) +v = cfg.Section("").Key("TIME").MustTime() // RFC3339 + +// Methods start with Must also accept one argument for default value +// when key not found or fail to parse value to given type. +// Except method MustString, which you have to pass a default value. + +v = cfg.Section("").Key("String").MustString("default") +v = cfg.Section("").Key("BOOL").MustBool(true) +v = cfg.Section("").Key("FLOAT64").MustFloat64(1.25) +v = cfg.Section("").Key("INT").MustInt(10) +v = cfg.Section("").Key("INT64").MustInt64(99) +v = cfg.Section("").Key("UINT").MustUint(3) +v = cfg.Section("").Key("UINT64").MustUint64(6) +v = cfg.Section("").Key("TIME").MustTimeFormat(time.RFC3339, time.Now()) +v = cfg.Section("").Key("TIME").MustTime(time.Now()) // RFC3339 +``` + +What if my value is three-line long? + +```ini +[advance] +ADDRESS = """404 road, +NotFound, State, 5000 +Earth""" +``` + +Not a problem! + +```go +cfg.Section("advance").Key("ADDRESS").String() + +/* --- start --- +404 road, +NotFound, State, 5000 +Earth +------ end --- */ +``` + +That's cool, how about continuation lines? + +```ini +[advance] +two_lines = how about \ + continuation lines? +lots_of_lines = 1 \ + 2 \ + 3 \ + 4 +``` + +Piece of cake! + +```go +cfg.Section("advance").Key("two_lines").String() // how about continuation lines? +cfg.Section("advance").Key("lots_of_lines").String() // 1 2 3 4 +``` + +Note that single quotes around values will be stripped: + +```ini +foo = "some value" // foo: some value +bar = 'some value' // bar: some value +``` + +That's all? Hmm, no. + +#### Helper methods of working with values + +To get value with given candidates: + +```go +v = cfg.Section("").Key("STRING").In("default", []string{"str", "arr", "types"}) +v = cfg.Section("").Key("FLOAT64").InFloat64(1.1, []float64{1.25, 2.5, 3.75}) +v = cfg.Section("").Key("INT").InInt(5, []int{10, 20, 30}) +v = cfg.Section("").Key("INT64").InInt64(10, []int64{10, 20, 30}) +v = cfg.Section("").Key("UINT").InUint(4, []int{3, 6, 9}) +v = cfg.Section("").Key("UINT64").InUint64(8, []int64{3, 6, 9}) +v = cfg.Section("").Key("TIME").InTimeFormat(time.RFC3339, time.Now(), []time.Time{time1, time2, time3}) +v = cfg.Section("").Key("TIME").InTime(time.Now(), []time.Time{time1, time2, time3}) // RFC3339 +``` + +Default value will be presented if value of key is not in candidates you given, and default value does not need be one of candidates. + +To validate value in a given range: + +```go +vals = cfg.Section("").Key("FLOAT64").RangeFloat64(0.0, 1.1, 2.2) +vals = cfg.Section("").Key("INT").RangeInt(0, 10, 20) +vals = cfg.Section("").Key("INT64").RangeInt64(0, 10, 20) +vals = cfg.Section("").Key("UINT").RangeUint(0, 3, 9) +vals = cfg.Section("").Key("UINT64").RangeUint64(0, 3, 9) +vals = cfg.Section("").Key("TIME").RangeTimeFormat(time.RFC3339, time.Now(), minTime, maxTime) +vals = cfg.Section("").Key("TIME").RangeTime(time.Now(), minTime, maxTime) // RFC3339 +``` + +##### Auto-split values into a slice + +To use zero value of type for invalid inputs: + +```go +// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4] +// Input: how, 2.2, are, you -> [0.0 2.2 0.0 0.0] +vals = cfg.Section("").Key("STRINGS").Strings(",") +vals = cfg.Section("").Key("FLOAT64S").Float64s(",") +vals = cfg.Section("").Key("INTS").Ints(",") +vals = cfg.Section("").Key("INT64S").Int64s(",") +vals = cfg.Section("").Key("UINTS").Uints(",") +vals = cfg.Section("").Key("UINT64S").Uint64s(",") +vals = cfg.Section("").Key("TIMES").Times(",") +``` + +To exclude invalid values out of result slice: + +```go +// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4] +// Input: how, 2.2, are, you -> [2.2] +vals = cfg.Section("").Key("FLOAT64S").ValidFloat64s(",") +vals = cfg.Section("").Key("INTS").ValidInts(",") +vals = cfg.Section("").Key("INT64S").ValidInt64s(",") +vals = cfg.Section("").Key("UINTS").ValidUints(",") +vals = cfg.Section("").Key("UINT64S").ValidUint64s(",") +vals = cfg.Section("").Key("TIMES").ValidTimes(",") +``` + +Or to return nothing but error when have invalid inputs: + +```go +// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4] +// Input: how, 2.2, are, you -> error +vals = cfg.Section("").Key("FLOAT64S").StrictFloat64s(",") +vals = cfg.Section("").Key("INTS").StrictInts(",") +vals = cfg.Section("").Key("INT64S").StrictInt64s(",") +vals = cfg.Section("").Key("UINTS").StrictUints(",") +vals = cfg.Section("").Key("UINT64S").StrictUint64s(",") +vals = cfg.Section("").Key("TIMES").StrictTimes(",") +``` + +### Save your configuration + +Finally, it's time to save your configuration to somewhere. + +A typical way to save configuration is writing it to a file: + +```go +// ... +err = cfg.SaveTo("my.ini") +err = cfg.SaveToIndent("my.ini", "\t") +``` + +Another way to save is writing to a `io.Writer` interface: + +```go +// ... +cfg.WriteTo(writer) +cfg.WriteToIndent(writer, "\t") +``` + +## Advanced Usage + +### Recursive Values + +For all value of keys, there is a special syntax `%()s`, where `` is the key name in same section or default section, and `%()s` will be replaced by corresponding value(empty string if key not found). You can use this syntax at most 99 level of recursions. + +```ini +NAME = ini + +[author] +NAME = Unknwon +GITHUB = https://github.com/%(NAME)s + +[package] +FULL_NAME = github.com/go-ini/%(NAME)s +``` + +```go +cfg.Section("author").Key("GITHUB").String() // https://github.com/Unknwon +cfg.Section("package").Key("FULL_NAME").String() // github.com/go-ini/ini +``` + +### Parent-child Sections + +You can use `.` in section name to indicate parent-child relationship between two or more sections. If the key not found in the child section, library will try again on its parent section until there is no parent section. + +```ini +NAME = ini +VERSION = v1 +IMPORT_PATH = gopkg.in/%(NAME)s.%(VERSION)s + +[package] +CLONE_URL = https://%(IMPORT_PATH)s + +[package.sub] +``` + +```go +cfg.Section("package.sub").Key("CLONE_URL").String() // https://gopkg.in/ini.v1 +``` + +### Auto-increment Key Names + +If key name is `-` in data source, then it would be seen as special syntax for auto-increment key name start from 1, and every section is independent on counter. + +```ini +[features] +-: Support read/write comments of keys and sections +-: Support auto-increment of key names +-: Support load multiple files to overwrite key values +``` + +```go +cfg.Section("features").KeyStrings() // []{"#1", "#2", "#3"} +``` + +### Map To Struct + +Want more objective way to play with INI? Cool. + +```ini +Name = Unknwon +age = 21 +Male = true +Born = 1993-01-01T20:17:05Z + +[Note] +Content = Hi is a good man! +Cities = HangZhou, Boston +``` + +```go +type Note struct { + Content string + Cities []string +} + +type Person struct { + Name string + Age int `ini:"age"` + Male bool + Born time.Time + Note + Created time.Time `ini:"-"` +} + +func main() { + cfg, err := ini.Load("path/to/ini") + // ... + p := new(Person) + err = cfg.MapTo(p) + // ... + + // Things can be simpler. + err = ini.MapTo(p, "path/to/ini") + // ... + + // Just map a section? Fine. + n := new(Note) + err = cfg.Section("Note").MapTo(n) + // ... +} +``` + +Can I have default value for field? Absolutely. + +Assign it before you map to struct. It will keep the value as it is if the key is not presented or got wrong type. + +```go +// ... +p := &Person{ + Name: "Joe", +} +// ... +``` + +It's really cool, but what's the point if you can't give me my file back from struct? + +### Reflect From Struct + +Why not? + +```go +type Embeded struct { + Dates []time.Time `delim:"|"` + Places []string + None []int +} + +type Author struct { + Name string `ini:"NAME"` + Male bool + Age int + GPA float64 + NeverMind string `ini:"-"` + *Embeded +} + +func main() { + a := &Author{"Unknwon", true, 21, 2.8, "", + &Embeded{ + []time.Time{time.Now(), time.Now()}, + []string{"HangZhou", "Boston"}, + []int{}, + }} + cfg := ini.Empty() + err = ini.ReflectFrom(cfg, a) + // ... +} +``` + +So, what do I get? + +```ini +NAME = Unknwon +Male = true +Age = 21 +GPA = 2.8 + +[Embeded] +Dates = 2015-08-07T22:14:22+08:00|2015-08-07T22:14:22+08:00 +Places = HangZhou,Boston +None = +``` + +#### Name Mapper + +To save your time and make your code cleaner, this library supports [`NameMapper`](https://gowalker.org/gopkg.in/ini.v1#NameMapper) between struct field and actual section and key name. + +There are 2 built-in name mappers: + +- `AllCapsUnderscore`: it converts to format `ALL_CAPS_UNDERSCORE` then match section or key. +- `TitleUnderscore`: it converts to format `title_underscore` then match section or key. + +To use them: + +```go +type Info struct { + PackageName string +} + +func main() { + err = ini.MapToWithMapper(&Info{}, ini.TitleUnderscore, []byte("package_name=ini")) + // ... + + cfg, err := ini.Load([]byte("PACKAGE_NAME=ini")) + // ... + info := new(Info) + cfg.NameMapper = ini.AllCapsUnderscore + err = cfg.MapTo(info) + // ... +} +``` + +Same rules of name mapper apply to `ini.ReflectFromWithMapper` function. + +#### Other Notes On Map/Reflect + +Any embedded struct is treated as a section by default, and there is no automatic parent-child relations in map/reflect feature: + +```go +type Child struct { + Age string +} + +type Parent struct { + Name string + Child +} + +type Config struct { + City string + Parent +} +``` + +Example configuration: + +```ini +City = Boston + +[Parent] +Name = Unknwon + +[Child] +Age = 21 +``` + +What if, yes, I'm paranoid, I want embedded struct to be in the same section. Well, all roads lead to Rome. + +```go +type Child struct { + Age string +} + +type Parent struct { + Name string + Child `ini:"Parent"` +} + +type Config struct { + City string + Parent +} +``` + +Example configuration: + +```ini +City = Boston + +[Parent] +Name = Unknwon +Age = 21 +``` + +## Getting Help + +- [API Documentation](https://gowalker.org/gopkg.in/ini.v1) +- [File An Issue](https://github.com/go-ini/ini/issues/new) + +## FAQs + +### What does `BlockMode` field do? + +By default, library lets you read and write values so we need a locker to make sure your data is safe. But in cases that you are very sure about only reading data through the library, you can set `cfg.BlockMode = false` to speed up read operations about **50-70%** faster. + +### Why another INI library? + +Many people are using my another INI library [goconfig](https://github.com/Unknwon/goconfig), so the reason for this one is I would like to make more Go style code. Also when you set `cfg.BlockMode = false`, this one is about **10-30%** faster. + +To make those changes I have to confirm API broken, so it's safer to keep it in another place and start using `gopkg.in` to version my package at this time.(PS: shorter import path) + +## License + +This project is under Apache v2 License. See the [LICENSE](LICENSE) file for the full license text. diff --git a/Godeps/_workspace/src/github.com/go-ini/ini/README_ZH.md b/Godeps/_workspace/src/github.com/go-ini/ini/README_ZH.md new file mode 100644 index 0000000..49bc610 --- /dev/null +++ b/Godeps/_workspace/src/github.com/go-ini/ini/README_ZH.md @@ -0,0 +1,611 @@ +本包提供了 Go 语言中读写 INI 文件的功能。 + +## 功能特性 + +- 支持覆盖加载多个数据源（`[]byte` 或文件） +- 支持递归读取键值 +- 支持读取父子分区 +- 支持读取自增键名 +- 支持读取多行的键值 +- 支持大量辅助方法 +- 支持在读取时直接转换为 Go 语言类型 +- 支持读取和 **写入** 分区和键的注释 +- 轻松操作分区、键值和注释 +- 在保存文件时分区和键值会保持原有的顺序 + +## 下载安装 + +使用一个特定版本： + + go get gopkg.in/ini.v1 + +使用最新版： + + go get github.com/go-ini/ini + +如需更新请添加 `-u` 选项。 + +### 测试安装 + +如果您想要在自己的机器上运行测试，请使用 `-t` 标记： + + go get -t gopkg.in/ini.v1 + +如需更新请添加 `-u` 选项。 + +## 开始使用 + +### 从数据源加载 + +一个 **数据源** 可以是 `[]byte` 类型的原始数据，或 `string` 类型的文件路径。您可以加载 **任意多个** 数据源。如果您传递其它类型的数据源，则会直接返回错误。 + +```go +cfg, err := ini.Load([]byte("raw data"), "filename") +``` + +或者从一个空白的文件开始： + +```go +cfg := ini.Empty() +``` + +当您在一开始无法决定需要加载哪些数据源时，仍可以使用 **Append()** 在需要的时候加载它们。 + +```go +err := cfg.Append("other file", []byte("other raw data")) +``` + +### 操作分区（Section） + +获取指定分区： + +```go +section, err := cfg.GetSection("section name") +``` + +如果您想要获取默认分区，则可以用空字符串代替分区名： + +```go +section, err := cfg.GetSection("") +``` + +当您非常确定某个分区是存在的，可以使用以下简便方法： + +```go +section := cfg.Section("") +``` + +如果不小心判断错了，要获取的分区其实是不存在的，那会发生什么呢？没事的，它会自动创建并返回一个对应的分区对象给您。 + +创建一个分区： + +```go +err := cfg.NewSection("new section") +``` + +获取所有分区对象或名称： + +```go +sections := cfg.Sections() +names := cfg.SectionStrings() +``` + +### 操作键（Key） + +获取某个分区下的键： + +```go +key, err := cfg.Section("").GetKey("key name") +``` + +和分区一样，您也可以直接获取键而忽略错误处理： + +```go +key := cfg.Section("").Key("key name") +``` + +判断某个键是否存在： + +```go +yes := cfg.Section("").HasKey("key name") +``` + +创建一个新的键： + +```go +err := cfg.Section("").NewKey("name", "value") +``` + +获取分区下的所有键或键名： + +```go +keys := cfg.Section("").Keys() +names := cfg.Section("").KeyStrings() +``` + +获取分区下的所有键值对的克隆： + +```go +hash := cfg.GetSection("").KeysHash() +``` + +### 操作键值（Value） + +获取一个类型为字符串（string）的值： + +```go +val := cfg.Section("").Key("key name").String() +``` + +获取值的同时通过自定义函数进行处理验证： + +```go +val := cfg.Section("").Key("key name").Validate(func(in string) string { + if len(in) == 0 { + return "default" + } + return in +}) +``` + +如果您不需要任何对值的自动转变功能（例如递归读取），可以直接获取原值（这种方式性能最佳）： + +```go +val := cfg.Section("").Key("key name").Value() +``` + +判断某个原值是否存在： + +```go +yes := cfg.Section("").HasValue("test value") +``` + +获取其它类型的值： + +```go +// 布尔值的规则： +// true 当值为：1, t, T, TRUE, true, True, YES, yes, Yes, y, ON, on, On +// false 当值为：0, f, F, FALSE, false, False, NO, no, No, n, OFF, off, Off +v, err = cfg.Section("").Key("BOOL").Bool() +v, err = cfg.Section("").Key("FLOAT64").Float64() +v, err = cfg.Section("").Key("INT").Int() +v, err = cfg.Section("").Key("INT64").Int64() +v, err = cfg.Section("").Key("UINT").Uint() +v, err = cfg.Section("").Key("UINT64").Uint64() +v, err = cfg.Section("").Key("TIME").TimeFormat(time.RFC3339) +v, err = cfg.Section("").Key("TIME").Time() // RFC3339 + +v = cfg.Section("").Key("BOOL").MustBool() +v = cfg.Section("").Key("FLOAT64").MustFloat64() +v = cfg.Section("").Key("INT").MustInt() +v = cfg.Section("").Key("INT64").MustInt64() +v = cfg.Section("").Key("UINT").MustUint() +v = cfg.Section("").Key("UINT64").MustUint64() +v = cfg.Section("").Key("TIME").MustTimeFormat(time.RFC3339) +v = cfg.Section("").Key("TIME").MustTime() // RFC3339 + +// 由 Must 开头的方法名允许接收一个相同类型的参数来作为默认值， +// 当键不存在或者转换失败时，则会直接返回该默认值。 +// 但是，MustString 方法必须传递一个默认值。 + +v = cfg.Seciont("").Key("String").MustString("default") +v = cfg.Section("").Key("BOOL").MustBool(true) +v = cfg.Section("").Key("FLOAT64").MustFloat64(1.25) +v = cfg.Section("").Key("INT").MustInt(10) +v = cfg.Section("").Key("INT64").MustInt64(99) +v = cfg.Section("").Key("UINT").MustUint(3) +v = cfg.Section("").Key("UINT64").MustUint64(6) +v = cfg.Section("").Key("TIME").MustTimeFormat(time.RFC3339, time.Now()) +v = cfg.Section("").Key("TIME").MustTime(time.Now()) // RFC3339 +``` + +如果我的值有好多行怎么办？ + +```ini +[advance] +ADDRESS = """404 road, +NotFound, State, 5000 +Earth""" +``` + +嗯哼？小 case！ + +```go +cfg.Section("advance").Key("ADDRESS").String() + +/* --- start --- +404 road, +NotFound, State, 5000 +Earth +------ end --- */ +``` + +赞爆了！那要是我属于一行的内容写不下想要写到第二行怎么办？ + +```ini +[advance] +two_lines = how about \ + continuation lines? +lots_of_lines = 1 \ + 2 \ + 3 \ + 4 +``` + +简直是小菜一碟！ + +```go +cfg.Section("advance").Key("two_lines").String() // how about continuation lines? +cfg.Section("advance").Key("lots_of_lines").String() // 1 2 3 4 +``` + +需要注意的是，值两侧的单引号会被自动剔除： + +```ini +foo = "some value" // foo: some value +bar = 'some value' // bar: some value +``` + +这就是全部了？哈哈，当然不是。 + +#### 操作键值的辅助方法 + +获取键值时设定候选值： + +```go +v = cfg.Section("").Key("STRING").In("default", []string{"str", "arr", "types"}) +v = cfg.Section("").Key("FLOAT64").InFloat64(1.1, []float64{1.25, 2.5, 3.75}) +v = cfg.Section("").Key("INT").InInt(5, []int{10, 20, 30}) +v = cfg.Section("").Key("INT64").InInt64(10, []int64{10, 20, 30}) +v = cfg.Section("").Key("UINT").InUint(4, []int{3, 6, 9}) +v = cfg.Section("").Key("UINT64").InUint64(8, []int64{3, 6, 9}) +v = cfg.Section("").Key("TIME").InTimeFormat(time.RFC3339, time.Now(), []time.Time{time1, time2, time3}) +v = cfg.Section("").Key("TIME").InTime(time.Now(), []time.Time{time1, time2, time3}) // RFC3339 +``` + +如果获取到的值不是候选值的任意一个，则会返回默认值，而默认值不需要是候选值中的一员。 + +验证获取的值是否在指定范围内： + +```go +vals = cfg.Section("").Key("FLOAT64").RangeFloat64(0.0, 1.1, 2.2) +vals = cfg.Section("").Key("INT").RangeInt(0, 10, 20) +vals = cfg.Section("").Key("INT64").RangeInt64(0, 10, 20) +vals = cfg.Section("").Key("UINT").RangeUint(0, 3, 9) +vals = cfg.Section("").Key("UINT64").RangeUint64(0, 3, 9) +vals = cfg.Section("").Key("TIME").RangeTimeFormat(time.RFC3339, time.Now(), minTime, maxTime) +vals = cfg.Section("").Key("TIME").RangeTime(time.Now(), minTime, maxTime) // RFC3339 +``` + +##### 自动分割键值到切片（slice） + +当存在无效输入时，使用零值代替： + +```go +// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4] +// Input: how, 2.2, are, you -> [0.0 2.2 0.0 0.0] +vals = cfg.Section("").Key("STRINGS").Strings(",") +vals = cfg.Section("").Key("FLOAT64S").Float64s(",") +vals = cfg.Section("").Key("INTS").Ints(",") +vals = cfg.Section("").Key("INT64S").Int64s(",") +vals = cfg.Section("").Key("UINTS").Uints(",") +vals = cfg.Section("").Key("UINT64S").Uint64s(",") +vals = cfg.Section("").Key("TIMES").Times(",") +``` + +从结果切片中剔除无效输入： + +```go +// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4] +// Input: how, 2.2, are, you -> [2.2] +vals = cfg.Section("").Key("FLOAT64S").ValidFloat64s(",") +vals = cfg.Section("").Key("INTS").ValidInts(",") +vals = cfg.Section("").Key("INT64S").ValidInt64s(",") +vals = cfg.Section("").Key("UINTS").ValidUints(",") +vals = cfg.Section("").Key("UINT64S").ValidUint64s(",") +vals = cfg.Section("").Key("TIMES").ValidTimes(",") +``` + +当存在无效输入时，直接返回错误： + +```go +// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4] +// Input: how, 2.2, are, you -> error +vals = cfg.Section("").Key("FLOAT64S").StrictFloat64s(",") +vals = cfg.Section("").Key("INTS").StrictInts(",") +vals = cfg.Section("").Key("INT64S").StrictInt64s(",") +vals = cfg.Section("").Key("UINTS").StrictUints(",") +vals = cfg.Section("").Key("UINT64S").StrictUint64s(",") +vals = cfg.Section("").Key("TIMES").StrictTimes(",") +``` + +### 保存配置 + +终于到了这个时刻，是时候保存一下配置了。 + +比较原始的做法是输出配置到某个文件： + +```go +// ... +err = cfg.SaveTo("my.ini") +err = cfg.SaveToIndent("my.ini", "\t") +``` + +另一个比较高级的做法是写入到任何实现 `io.Writer` 接口的对象中： + +```go +// ... +cfg.WriteTo(writer) +cfg.WriteToIndent(writer, "\t") +``` + +### 高级用法 + +#### 递归读取键值 + +在获取所有键值的过程中，特殊语法 `%()s` 会被应用，其中 `` 可以是相同分区或者默认分区下的键名。字符串 `%()s` 会被相应的键值所替代，如果指定的键不存在，则会用空字符串替代。您可以最多使用 99 层的递归嵌套。 + +```ini +NAME = ini + +[author] +NAME = Unknwon +GITHUB = https://github.com/%(NAME)s + +[package] +FULL_NAME = github.com/go-ini/%(NAME)s +``` + +```go +cfg.Section("author").Key("GITHUB").String() // https://github.com/Unknwon +cfg.Section("package").Key("FULL_NAME").String() // github.com/go-ini/ini +``` + +#### 读取父子分区 + +您可以在分区名称中使用 `.` 来表示两个或多个分区之间的父子关系。如果某个键在子分区中不存在，则会去它的父分区中再次寻找，直到没有父分区为止。 + +```ini +NAME = ini +VERSION = v1 +IMPORT_PATH = gopkg.in/%(NAME)s.%(VERSION)s + +[package] +CLONE_URL = https://%(IMPORT_PATH)s + +[package.sub] +``` + +```go +cfg.Section("package.sub").Key("CLONE_URL").String() // https://gopkg.in/ini.v1 +``` + +#### 读取自增键名 + +如果数据源中的键名为 `-`，则认为该键使用了自增键名的特殊语法。计数器从 1 开始，并且分区之间是相互独立的。 + +```ini +[features] +-: Support read/write comments of keys and sections +-: Support auto-increment of key names +-: Support load multiple files to overwrite key values +``` + +```go +cfg.Section("features").KeyStrings() // []{"#1", "#2", "#3"} +``` + +### 映射到结构 + +想要使用更加面向对象的方式玩转 INI 吗？好主意。 + +```ini +Name = Unknwon +age = 21 +Male = true +Born = 1993-01-01T20:17:05Z + +[Note] +Content = Hi is a good man! +Cities = HangZhou, Boston +``` + +```go +type Note struct { + Content string + Cities []string +} + +type Person struct { + Name string + Age int `ini:"age"` + Male bool + Born time.Time + Note + Created time.Time `ini:"-"` +} + +func main() { + cfg, err := ini.Load("path/to/ini") + // ... + p := new(Person) + err = cfg.MapTo(p) + // ... + + // 一切竟可以如此的简单。 + err = ini.MapTo(p, "path/to/ini") + // ... + + // 嗯哼？只需要映射一个分区吗？ + n := new(Note) + err = cfg.Section("Note").MapTo(n) + // ... +} +``` + +结构的字段怎么设置默认值呢？很简单，只要在映射之前对指定字段进行赋值就可以了。如果键未找到或者类型错误，该值不会发生改变。 + +```go +// ... +p := &Person{ + Name: "Joe", +} +// ... +``` + +这样玩 INI 真的好酷啊！然而，如果不能还给我原来的配置文件，有什么卵用？ + +### 从结构反射 + +可是，我有说不能吗？ + +```go +type Embeded struct { + Dates []time.Time `delim:"|"` + Places []string + None []int +} + +type Author struct { + Name string `ini:"NAME"` + Male bool + Age int + GPA float64 + NeverMind string `ini:"-"` + *Embeded +} + +func main() { + a := &Author{"Unknwon", true, 21, 2.8, "", + &Embeded{ + []time.Time{time.Now(), time.Now()}, + []string{"HangZhou", "Boston"}, + []int{}, + }} + cfg := ini.Empty() + err = ini.ReflectFrom(cfg, a) + // ... +} +``` + +瞧瞧，奇迹发生了。 + +```ini +NAME = Unknwon +Male = true +Age = 21 +GPA = 2.8 + +[Embeded] +Dates = 2015-08-07T22:14:22+08:00|2015-08-07T22:14:22+08:00 +Places = HangZhou,Boston +None = +``` + +#### 名称映射器（Name Mapper） + +为了节省您的时间并简化代码，本库支持类型为 [`NameMapper`](https://gowalker.org/gopkg.in/ini.v1#NameMapper) 的名称映射器，该映射器负责结构字段名与分区名和键名之间的映射。 + +目前有 2 款内置的映射器： + +- `AllCapsUnderscore`：该映射器将字段名转换至格式 `ALL_CAPS_UNDERSCORE` 后再去匹配分区名和键名。 +- `TitleUnderscore`：该映射器将字段名转换至格式 `title_underscore` 后再去匹配分区名和键名。 + +使用方法： + +```go +type Info struct{ + PackageName string +} + +func main() { + err = ini.MapToWithMapper(&Info{}, ini.TitleUnderscore, []byte("package_name=ini")) + // ... + + cfg, err := ini.Load([]byte("PACKAGE_NAME=ini")) + // ... + info := new(Info) + cfg.NameMapper = ini.AllCapsUnderscore + err = cfg.MapTo(info) + // ... +} +``` + +使用函数 `ini.ReflectFromWithMapper` 时也可应用相同的规则。 + +#### 映射/反射的其它说明 + +任何嵌入的结构都会被默认认作一个不同的分区，并且不会自动产生所谓的父子分区关联： + +```go +type Child struct { + Age string +} + +type Parent struct { + Name string + Child +} + +type Config struct { + City string + Parent +} +``` + +示例配置文件： + +```ini +City = Boston + +[Parent] +Name = Unknwon + +[Child] +Age = 21 +``` + +很好，但是，我就是要嵌入结构也在同一个分区。好吧，你爹是李刚！ + +```go +type Child struct { + Age string +} + +type Parent struct { + Name string + Child `ini:"Parent"` +} + +type Config struct { + City string + Parent +} +``` + +示例配置文件： + +```ini +City = Boston + +[Parent] +Name = Unknwon +Age = 21 +``` + +## 获取帮助 + +- [API 文档](https://gowalker.org/gopkg.in/ini.v1) +- [创建工单](https://github.com/go-ini/ini/issues/new) + +## 常见问题 + +### 字段 `BlockMode` 是什么？ + +默认情况下，本库会在您进行读写操作时采用锁机制来确保数据时间。但在某些情况下，您非常确定只进行读操作。此时，您可以通过设置 `cfg.BlockMode = false` 来将读操作提升大约 **50-70%** 的性能。 + +### 为什么要写另一个 INI 解析库？ + +许多人都在使用我的 [goconfig](https://github.com/Unknwon/goconfig) 来完成对 INI 文件的操作，但我希望使用更加 Go 风格的代码。并且当您设置 `cfg.BlockMode = false` 时，会有大约 **10-30%** 的性能提升。 + +为了做出这些改变，我必须对 API 进行破坏，所以新开一个仓库是最安全的做法。除此之外，本库直接使用 `gopkg.in` 来进行版本化发布。（其实真相是导入路径更短了） diff --git a/Godeps/_workspace/src/github.com/go-ini/ini/ini.go b/Godeps/_workspace/src/github.com/go-ini/ini/ini.go new file mode 100644 index 0000000..ca9f634 --- /dev/null +++ b/Godeps/_workspace/src/github.com/go-ini/ini/ini.go @@ -0,0 +1,1183 @@ +// Copyright 2014 Unknwon +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +// Package ini provides INI file read and write functionality in Go. +package ini + +import ( + "bytes" + "errors" + "fmt" + "io" + "os" + "regexp" + "runtime" + "strconv" + "strings" + "sync" + "time" +) + +const ( + DEFAULT_SECTION = "DEFAULT" + // Maximum allowed depth when recursively substituing variable names. + _DEPTH_VALUES = 99 + + _VERSION = "1.9.0" +) + +func Version() string { + return _VERSION +} + +var ( + LineBreak = "\n" + + // Variable regexp pattern: %(variable)s + varPattern = regexp.MustCompile(`%\(([^\)]+)\)s`) + + // Write spaces around "=" to look better. + PrettyFormat = true +) + +func init() { + if runtime.GOOS == "windows" { + LineBreak = "\r\n" + } +} + +func inSlice(str string, s []string) bool { + for _, v := range s { + if str == v { + return true + } + } + return false +} + +// dataSource is a interface that returns file content. +type dataSource interface { + ReadCloser() (io.ReadCloser, error) +} + +type sourceFile struct { + name string +} + +func (s sourceFile) ReadCloser() (_ io.ReadCloser, err error) { + return os.Open(s.name) +} + +type bytesReadCloser struct { + reader io.Reader +} + +func (rc *bytesReadCloser) Read(p []byte) (n int, err error) { + return rc.reader.Read(p) +} + +func (rc *bytesReadCloser) Close() error { + return nil +} + +type sourceData struct { + data []byte +} + +func (s *sourceData) ReadCloser() (io.ReadCloser, error) { + return &bytesReadCloser{bytes.NewReader(s.data)}, nil +} + +// ____ __. +// | |/ _|____ ___.__. +// | <_/ __ < | | +// | | \ ___/\___ | +// |____|__ \___ > ____| +// \/ \/\/ + +// Key represents a key under a section. +type Key struct { + s *Section + Comment string + name string + value string + isAutoIncr bool +} + +// Name returns name of key. +func (k *Key) Name() string { + return k.name +} + +// Value returns raw value of key for performance purpose. +func (k *Key) Value() string { + return k.value +} + +// String returns string representation of value. +func (k *Key) String() string { + val := k.value + if strings.Index(val, "%") == -1 { + return val + } + + for i := 0; i < _DEPTH_VALUES; i++ { + vr := varPattern.FindString(val) + if len(vr) == 0 { + break + } + + // Take off leading '%(' and trailing ')s'. + noption := strings.TrimLeft(vr, "%(") + noption = strings.TrimRight(noption, ")s") + + // Search in the same section. + nk, err := k.s.GetKey(noption) + if err != nil { + // Search again in default section. + nk, _ = k.s.f.Section("").GetKey(noption) + } + + // Substitute by new value and take off leading '%(' and trailing ')s'. + val = strings.Replace(val, vr, nk.value, -1) + } + return val +} + +// Validate accepts a validate function which can +// return modifed result as key value. +func (k *Key) Validate(fn func(string) string) string { + return fn(k.String()) +} + +// parseBool returns the boolean value represented by the string. +// +// It accepts 1, t, T, TRUE, true, True, YES, yes, Yes, y, ON, on, On, +// 0, f, F, FALSE, false, False, NO, no, No, n, OFF, off, Off. +// Any other value returns an error. +func parseBool(str string) (value bool, err error) { + switch str { + case "1", "t", "T", "true", "TRUE", "True", "YES", "yes", "Yes", "y", "ON", "on", "On": + return true, nil + case "0", "f", "F", "false", "FALSE", "False", "NO", "no", "No", "n", "OFF", "off", "Off": + return false, nil + } + return false, fmt.Errorf("parsing \"%s\": invalid syntax", str) +} + +// Bool returns bool type value. +func (k *Key) Bool() (bool, error) { + return parseBool(k.String()) +} + +// Float64 returns float64 type value. +func (k *Key) Float64() (float64, error) { + return strconv.ParseFloat(k.String(), 64) +} + +// Int returns int type value. +func (k *Key) Int() (int, error) { + return strconv.Atoi(k.String()) +} + +// Int64 returns int64 type value. +func (k *Key) Int64() (int64, error) { + return strconv.ParseInt(k.String(), 10, 64) +} + +// Uint returns uint type valued. +func (k *Key) Uint() (uint, error) { + u, e := strconv.ParseUint(k.String(), 10, 64) + return uint(u), e +} + +// Uint64 returns uint64 type value. +func (k *Key) Uint64() (uint64, error) { + return strconv.ParseUint(k.String(), 10, 64) +} + +// Duration returns time.Duration type value. +func (k *Key) Duration() (time.Duration, error) { + return time.ParseDuration(k.String()) +} + +// TimeFormat parses with given format and returns time.Time type value. +func (k *Key) TimeFormat(format string) (time.Time, error) { + return time.Parse(format, k.String()) +} + +// Time parses with RFC3339 format and returns time.Time type value. +func (k *Key) Time() (time.Time, error) { + return k.TimeFormat(time.RFC3339) +} + +// MustString returns default value if key value is empty. +func (k *Key) MustString(defaultVal string) string { + val := k.String() + if len(val) == 0 { + return defaultVal + } + return val +} + +// MustBool always returns value without error, +// it returns false if error occurs. +func (k *Key) MustBool(defaultVal ...bool) bool { + val, err := k.Bool() + if len(defaultVal) > 0 && err != nil { + return defaultVal[0] + } + return val +} + +// MustFloat64 always returns value without error, +// it returns 0.0 if error occurs. +func (k *Key) MustFloat64(defaultVal ...float64) float64 { + val, err := k.Float64() + if len(defaultVal) > 0 && err != nil { + return defaultVal[0] + } + return val +} + +// MustInt always returns value without error, +// it returns 0 if error occurs. +func (k *Key) MustInt(defaultVal ...int) int { + val, err := k.Int() + if len(defaultVal) > 0 && err != nil { + return defaultVal[0] + } + return val +} + +// MustInt64 always returns value without error, +// it returns 0 if error occurs. +func (k *Key) MustInt64(defaultVal ...int64) int64 { + val, err := k.Int64() + if len(defaultVal) > 0 && err != nil { + return defaultVal[0] + } + return val +} + +// MustUint always returns value without error, +// it returns 0 if error occurs. +func (k *Key) MustUint(defaultVal ...uint) uint { + val, err := k.Uint() + if len(defaultVal) > 0 && err != nil { + return defaultVal[0] + } + return val +} + +// MustUint64 always returns value without error, +// it returns 0 if error occurs. +func (k *Key) MustUint64(defaultVal ...uint64) uint64 { + val, err := k.Uint64() + if len(defaultVal) > 0 && err != nil { + return defaultVal[0] + } + return val +} + +// MustDuration always returns value without error, +// it returns zero value if error occurs. +func (k *Key) MustDuration(defaultVal ...time.Duration) time.Duration { + val, err := k.Duration() + if len(defaultVal) > 0 && err != nil { + return defaultVal[0] + } + return val +} + +// MustTimeFormat always parses with given format and returns value without error, +// it returns zero value if error occurs. +func (k *Key) MustTimeFormat(format string, defaultVal ...time.Time) time.Time { + val, err := k.TimeFormat(format) + if len(defaultVal) > 0 && err != nil { + return defaultVal[0] + } + return val +} + +// MustTime always parses with RFC3339 format and returns value without error, +// it returns zero value if error occurs. +func (k *Key) MustTime(defaultVal ...time.Time) time.Time { + return k.MustTimeFormat(time.RFC3339, defaultVal...) +} + +// In always returns value without error, +// it returns default value if error occurs or doesn't fit into candidates. +func (k *Key) In(defaultVal string, candidates []string) string { + val := k.String() + for _, cand := range candidates { + if val == cand { + return val + } + } + return defaultVal +} + +// InFloat64 always returns value without error, +// it returns default value if error occurs or doesn't fit into candidates. +func (k *Key) InFloat64(defaultVal float64, candidates []float64) float64 { + val := k.MustFloat64() + for _, cand := range candidates { + if val == cand { + return val + } + } + return defaultVal +} + +// InInt always returns value without error, +// it returns default value if error occurs or doesn't fit into candidates. +func (k *Key) InInt(defaultVal int, candidates []int) int { + val := k.MustInt() + for _, cand := range candidates { + if val == cand { + return val + } + } + return defaultVal +} + +// InInt64 always returns value without error, +// it returns default value if error occurs or doesn't fit into candidates. +func (k *Key) InInt64(defaultVal int64, candidates []int64) int64 { + val := k.MustInt64() + for _, cand := range candidates { + if val == cand { + return val + } + } + return defaultVal +} + +// InUint always returns value without error, +// it returns default value if error occurs or doesn't fit into candidates. +func (k *Key) InUint(defaultVal uint, candidates []uint) uint { + val := k.MustUint() + for _, cand := range candidates { + if val == cand { + return val + } + } + return defaultVal +} + +// InUint64 always returns value without error, +// it returns default value if error occurs or doesn't fit into candidates. +func (k *Key) InUint64(defaultVal uint64, candidates []uint64) uint64 { + val := k.MustUint64() + for _, cand := range candidates { + if val == cand { + return val + } + } + return defaultVal +} + +// InTimeFormat always parses with given format and returns value without error, +// it returns default value if error occurs or doesn't fit into candidates. +func (k *Key) InTimeFormat(format string, defaultVal time.Time, candidates []time.Time) time.Time { + val := k.MustTimeFormat(format) + for _, cand := range candidates { + if val == cand { + return val + } + } + return defaultVal +} + +// InTime always parses with RFC3339 format and returns value without error, +// it returns default value if error occurs or doesn't fit into candidates. +func (k *Key) InTime(defaultVal time.Time, candidates []time.Time) time.Time { + return k.InTimeFormat(time.RFC3339, defaultVal, candidates) +} + +// RangeFloat64 checks if value is in given range inclusively, +// and returns default value if it's not. +func (k *Key) RangeFloat64(defaultVal, min, max float64) float64 { + val := k.MustFloat64() + if val < min || val > max { + return defaultVal + } + return val +} + +// RangeInt checks if value is in given range inclusively, +// and returns default value if it's not. +func (k *Key) RangeInt(defaultVal, min, max int) int { + val := k.MustInt() + if val < min || val > max { + return defaultVal + } + return val +} + +// RangeInt64 checks if value is in given range inclusively, +// and returns default value if it's not. +func (k *Key) RangeInt64(defaultVal, min, max int64) int64 { + val := k.MustInt64() + if val < min || val > max { + return defaultVal + } + return val +} + +// RangeTimeFormat checks if value with given format is in given range inclusively, +// and returns default value if it's not. +func (k *Key) RangeTimeFormat(format string, defaultVal, min, max time.Time) time.Time { + val := k.MustTimeFormat(format) + if val.Unix() < min.Unix() || val.Unix() > max.Unix() { + return defaultVal + } + return val +} + +// RangeTime checks if value with RFC3339 format is in given range inclusively, +// and returns default value if it's not. +func (k *Key) RangeTime(defaultVal, min, max time.Time) time.Time { + return k.RangeTimeFormat(time.RFC3339, defaultVal, min, max) +} + +// Strings returns list of string divided by given delimiter. +func (k *Key) Strings(delim string) []string { + str := k.String() + if len(str) == 0 { + return []string{} + } + + vals := strings.Split(str, delim) + for i := range vals { + vals[i] = strings.TrimSpace(vals[i]) + } + return vals +} + +// Float64s returns list of float64 divided by given delimiter. Any invalid input will be treated as zero value. +func (k *Key) Float64s(delim string) []float64 { + vals, _ := k.getFloat64s(delim, true, false) + return vals +} + +// Ints returns list of int divided by given delimiter. Any invalid input will be treated as zero value. +func (k *Key) Ints(delim string) []int { + vals, _ := k.getInts(delim, true, false) + return vals +} + +// Int64s returns list of int64 divided by given delimiter. Any invalid input will be treated as zero value. +func (k *Key) Int64s(delim string) []int64 { + vals, _ := k.getInt64s(delim, true, false) + return vals +} + +// Uints returns list of uint divided by given delimiter. Any invalid input will be treated as zero value. +func (k *Key) Uints(delim string) []uint { + vals, _ := k.getUints(delim, true, false) + return vals +} + +// Uint64s returns list of uint64 divided by given delimiter. Any invalid input will be treated as zero value. +func (k *Key) Uint64s(delim string) []uint64 { + vals, _ := k.getUint64s(delim, true, false) + return vals +} + +// TimesFormat parses with given format and returns list of time.Time divided by given delimiter. +// Any invalid input will be treated as zero value (0001-01-01 00:00:00 +0000 UTC). +func (k *Key) TimesFormat(format, delim string) []time.Time { + vals, _ := k.getTimesFormat(format, delim, true, false) + return vals +} + +// Times parses with RFC3339 format and returns list of time.Time divided by given delimiter. +// Any invalid input will be treated as zero value (0001-01-01 00:00:00 +0000 UTC). +func (k *Key) Times(delim string) []time.Time { + return k.TimesFormat(time.RFC3339, delim) +} + +// ValidFloat64s returns list of float64 divided by given delimiter. If some value is not float, then +// it will not be included to result list. +func (k *Key) ValidFloat64s(delim string) []float64 { + vals, _ := k.getFloat64s(delim, false, false) + return vals +} + +// ValidInts returns list of int divided by given delimiter. If some value is not integer, then it will +// not be included to result list. +func (k *Key) ValidInts(delim string) []int { + vals, _ := k.getInts(delim, false, false) + return vals +} + +// ValidInt64s returns list of int64 divided by given delimiter. If some value is not 64-bit integer, +// then it will not be included to result list. +func (k *Key) ValidInt64s(delim string) []int64 { + vals, _ := k.getInt64s(delim, false, false) + return vals +} + +// ValidUints returns list of uint divided by given delimiter. If some value is not unsigned integer, +// then it will not be included to result list. +func (k *Key) ValidUints(delim string) []uint { + vals, _ := k.getUints(delim, false, false) + return vals +} + +// ValidUint64s returns list of uint64 divided by given delimiter. If some value is not 64-bit unsigned +// integer, then it will not be included to result list. +func (k *Key) ValidUint64s(delim string) []uint64 { + vals, _ := k.getUint64s(delim, false, false) + return vals +} + +// ValidTimesFormat parses with given format and returns list of time.Time divided by given delimiter. +func (k *Key) ValidTimesFormat(format, delim string) []time.Time { + vals, _ := k.getTimesFormat(format, delim, false, false) + return vals +} + +// ValidTimes parses with RFC3339 format and returns list of time.Time divided by given delimiter. +func (k *Key) ValidTimes(delim string) []time.Time { + return k.ValidTimesFormat(time.RFC3339, delim) +} + +// StrictFloat64s returns list of float64 divided by given delimiter or error on first invalid input. +func (k *Key) StrictFloat64s(delim string) ([]float64, error) { + return k.getFloat64s(delim, false, true) +} + +// StrictInts returns list of int divided by given delimiter or error on first invalid input. +func (k *Key) StrictInts(delim string) ([]int, error) { + return k.getInts(delim, false, true) +} + +// StrictInt64s returns list of int64 divided by given delimiter or error on first invalid input. +func (k *Key) StrictInt64s(delim string) ([]int64, error) { + return k.getInt64s(delim, false, true) +} + +// StrictUints returns list of uint divided by given delimiter or error on first invalid input. +func (k *Key) StrictUints(delim string) ([]uint, error) { + return k.getUints(delim, false, true) +} + +// StrictUint64s returns list of uint64 divided by given delimiter or error on first invalid input. +func (k *Key) StrictUint64s(delim string) ([]uint64, error) { + return k.getUint64s(delim, false, true) +} + +// StrictTimesFormat parses with given format and returns list of time.Time divided by given delimiter +// or error on first invalid input. +func (k *Key) StrictTimesFormat(format, delim string) ([]time.Time, error) { + return k.getTimesFormat(format, delim, false, true) +} + +// StrictTimes parses with RFC3339 format and returns list of time.Time divided by given delimiter +// or error on first invalid input. +func (k *Key) StrictTimes(delim string) ([]time.Time, error) { + return k.StrictTimesFormat(time.RFC3339, delim) +} + +// getFloat64s returns list of float64 divided by given delimiter. +func (k *Key) getFloat64s(delim string, addInvalid, returnOnInvalid bool) ([]float64, error) { + strs := k.Strings(delim) + vals := make([]float64, 0, len(strs)) + for _, str := range strs { + val, err := strconv.ParseFloat(str, 64) + if err != nil && returnOnInvalid { + return nil, err + } + if err == nil || addInvalid { + vals = append(vals, val) + } + } + return vals, nil +} + +// getInts returns list of int divided by given delimiter. +func (k *Key) getInts(delim string, addInvalid, returnOnInvalid bool) ([]int, error) { + strs := k.Strings(delim) + vals := make([]int, 0, len(strs)) + for _, str := range strs { + val, err := strconv.Atoi(str) + if err != nil && returnOnInvalid { + return nil, err + } + if err == nil || addInvalid { + vals = append(vals, val) + } + } + return vals, nil +} + +// getInt64s returns list of int64 divided by given delimiter. +func (k *Key) getInt64s(delim string, addInvalid, returnOnInvalid bool) ([]int64, error) { + strs := k.Strings(delim) + vals := make([]int64, 0, len(strs)) + for _, str := range strs { + val, err := strconv.ParseInt(str, 10, 64) + if err != nil && returnOnInvalid { + return nil, err + } + if err == nil || addInvalid { + vals = append(vals, val) + } + } + return vals, nil +} + +// getUints returns list of uint divided by given delimiter. +func (k *Key) getUints(delim string, addInvalid, returnOnInvalid bool) ([]uint, error) { + strs := k.Strings(delim) + vals := make([]uint, 0, len(strs)) + for _, str := range strs { + val, err := strconv.ParseUint(str, 10, 0) + if err != nil && returnOnInvalid { + return nil, err + } + if err == nil || addInvalid { + vals = append(vals, uint(val)) + } + } + return vals, nil +} + +// getUint64s returns list of uint64 divided by given delimiter. +func (k *Key) getUint64s(delim string, addInvalid, returnOnInvalid bool) ([]uint64, error) { + strs := k.Strings(delim) + vals := make([]uint64, 0, len(strs)) + for _, str := range strs { + val, err := strconv.ParseUint(str, 10, 64) + if err != nil && returnOnInvalid { + return nil, err + } + if err == nil || addInvalid { + vals = append(vals, val) + } + } + return vals, nil +} + +// getTimesFormat parses with given format and returns list of time.Time divided by given delimiter. +func (k *Key) getTimesFormat(format, delim string, addInvalid, returnOnInvalid bool) ([]time.Time, error) { + strs := k.Strings(delim) + vals := make([]time.Time, 0, len(strs)) + for _, str := range strs { + val, err := time.Parse(format, str) + if err != nil && returnOnInvalid { + return nil, err + } + if err == nil || addInvalid { + vals = append(vals, val) + } + } + return vals, nil +} + +// SetValue changes key value. +func (k *Key) SetValue(v string) { + if k.s.f.BlockMode { + k.s.f.lock.Lock() + defer k.s.f.lock.Unlock() + } + + k.value = v + k.s.keysHash[k.name] = v +} + +// _________ __ .__ +// / _____/ ____ _____/ |_|__| ____ ____ +// \_____ \_/ __ \_/ ___\ __\ |/ _ \ / \ +// / \ ___/\ \___| | | ( <_> ) | \ +// /_______ /\___ >\___ >__| |__|\____/|___| / +// \/ \/ \/ \/ + +// Section represents a config section. +type Section struct { + f *File + Comment string + name string + keys map[string]*Key + keyList []string + keysHash map[string]string +} + +func newSection(f *File, name string) *Section { + return &Section{f, "", name, make(map[string]*Key), make([]string, 0, 10), make(map[string]string)} +} + +// Name returns name of Section. +func (s *Section) Name() string { + return s.name +} + +// NewKey creates a new key to given section. +func (s *Section) NewKey(name, val string) (*Key, error) { + if len(name) == 0 { + return nil, errors.New("error creating new key: empty key name") + } + + if s.f.BlockMode { + s.f.lock.Lock() + defer s.f.lock.Unlock() + } + + if inSlice(name, s.keyList) { + s.keys[name].value = val + return s.keys[name], nil + } + + s.keyList = append(s.keyList, name) + s.keys[name] = &Key{s, "", name, val, false} + s.keysHash[name] = val + return s.keys[name], nil +} + +// GetKey returns key in section by given name. +func (s *Section) GetKey(name string) (*Key, error) { + // FIXME: change to section level lock? + if s.f.BlockMode { + s.f.lock.RLock() + } + key := s.keys[name] + if s.f.BlockMode { + s.f.lock.RUnlock() + } + + if key == nil { + // Check if it is a child-section. + sname := s.name + for { + if i := strings.LastIndex(sname, "."); i > -1 { + sname = sname[:i] + sec, err := s.f.GetSection(sname) + if err != nil { + continue + } + return sec.GetKey(name) + } else { + break + } + } + return nil, fmt.Errorf("error when getting key of section '%s': key '%s' not exists", s.name, name) + } + return key, nil +} + +// HasKey returns true if section contains a key with given name. +func (s *Section) HasKey(name string) bool { + key, _ := s.GetKey(name) + return key != nil +} + +// Haskey is a backwards-compatible name for HasKey. +func (s *Section) Haskey(name string) bool { + return s.HasKey(name) +} + +// HasValue returns true if section contains given raw value. +func (s *Section) HasValue(value string) bool { + if s.f.BlockMode { + s.f.lock.RLock() + defer s.f.lock.RUnlock() + } + + for _, k := range s.keys { + if value == k.value { + return true + } + } + return false +} + +// Key assumes named Key exists in section and returns a zero-value when not. +func (s *Section) Key(name string) *Key { + key, err := s.GetKey(name) + if err != nil { + // It's OK here because the only possible error is empty key name, + // but if it's empty, this piece of code won't be executed. + key, _ = s.NewKey(name, "") + return key + } + return key +} + +// Keys returns list of keys of section. +func (s *Section) Keys() []*Key { + keys := make([]*Key, len(s.keyList)) + for i := range s.keyList { + keys[i] = s.Key(s.keyList[i]) + } + return keys +} + +// KeyStrings returns list of key names of section. +func (s *Section) KeyStrings() []string { + list := make([]string, len(s.keyList)) + copy(list, s.keyList) + return list +} + +// KeysHash returns keys hash consisting of names and values. +func (s *Section) KeysHash() map[string]string { + if s.f.BlockMode { + s.f.lock.RLock() + defer s.f.lock.RUnlock() + } + + hash := map[string]string{} + for key, value := range s.keysHash { + hash[key] = value + } + return hash +} + +// DeleteKey deletes a key from section. +func (s *Section) DeleteKey(name string) { + if s.f.BlockMode { + s.f.lock.Lock() + defer s.f.lock.Unlock() + } + + for i, k := range s.keyList { + if k == name { + s.keyList = append(s.keyList[:i], s.keyList[i+1:]...) + delete(s.keys, name) + return + } + } +} + +// ___________.__.__ +// \_ _____/|__| | ____ +// | __) | | | _/ __ \ +// | \ | | |_\ ___/ +// \___ / |__|____/\___ > +// \/ \/ + +// File represents a combination of a or more INI file(s) in memory. +type File struct { + // Should make things safe, but sometimes doesn't matter. + BlockMode bool + // Make sure data is safe in multiple goroutines. + lock sync.RWMutex + + // Allow combination of multiple data sources. + dataSources []dataSource + // Actual data is stored here. + sections map[string]*Section + + // To keep data in order. + sectionList []string + + NameMapper +} + +// newFile initializes File object with given data sources. +func newFile(dataSources []dataSource) *File { + return &File{ + BlockMode: true, + dataSources: dataSources, + sections: make(map[string]*Section), + sectionList: make([]string, 0, 10), + } +} + +func parseDataSource(source interface{}) (dataSource, error) { + switch s := source.(type) { + case string: + return sourceFile{s}, nil + case []byte: + return &sourceData{s}, nil + default: + return nil, fmt.Errorf("error parsing data source: unknown type '%s'", s) + } +} + +// Load loads and parses from INI data sources. +// Arguments can be mixed of file name with string type, or raw data in []byte. +func Load(source interface{}, others ...interface{}) (_ *File, err error) { + sources := make([]dataSource, len(others)+1) + sources[0], err = parseDataSource(source) + if err != nil { + return nil, err + } + for i := range others { + sources[i+1], err = parseDataSource(others[i]) + if err != nil { + return nil, err + } + } + f := newFile(sources) + if err = f.Reload(); err != nil { + return nil, err + } + return f, nil +} + +// Empty returns an empty file object. +func Empty() *File { + // Ignore error here, we sure our data is good. + f, _ := Load([]byte("")) + return f +} + +// NewSection creates a new section. +func (f *File) NewSection(name string) (*Section, error) { + if len(name) == 0 { + return nil, errors.New("error creating new section: empty section name") + } + + if f.BlockMode { + f.lock.Lock() + defer f.lock.Unlock() + } + + if inSlice(name, f.sectionList) { + return f.sections[name], nil + } + + f.sectionList = append(f.sectionList, name) + f.sections[name] = newSection(f, name) + return f.sections[name], nil +} + +// NewSections creates a list of sections. +func (f *File) NewSections(names ...string) (err error) { + for _, name := range names { + if _, err = f.NewSection(name); err != nil { + return err + } + } + return nil +} + +// GetSection returns section by given name. +func (f *File) GetSection(name string) (*Section, error) { + if len(name) == 0 { + name = DEFAULT_SECTION + } + + if f.BlockMode { + f.lock.RLock() + defer f.lock.RUnlock() + } + + sec := f.sections[name] + if sec == nil { + return nil, fmt.Errorf("error when getting section: section '%s' not exists", name) + } + return sec, nil +} + +// Section assumes named section exists and returns a zero-value when not. +func (f *File) Section(name string) *Section { + sec, err := f.GetSection(name) + if err != nil { + // Note: It's OK here because the only possible error is empty section name, + // but if it's empty, this piece of code won't be executed. + sec, _ = f.NewSection(name) + return sec + } + return sec +} + +// Section returns list of Section. +func (f *File) Sections() []*Section { + sections := make([]*Section, len(f.sectionList)) + for i := range f.sectionList { + sections[i] = f.Section(f.sectionList[i]) + } + return sections +} + +// SectionStrings returns list of section names. +func (f *File) SectionStrings() []string { + list := make([]string, len(f.sectionList)) + copy(list, f.sectionList) + return list +} + +// DeleteSection deletes a section. +func (f *File) DeleteSection(name string) { + if f.BlockMode { + f.lock.Lock() + defer f.lock.Unlock() + } + + if len(name) == 0 { + name = DEFAULT_SECTION + } + + for i, s := range f.sectionList { + if s == name { + f.sectionList = append(f.sectionList[:i], f.sectionList[i+1:]...) + delete(f.sections, name) + return + } + } +} + +func (f *File) reload(s dataSource) error { + r, err := s.ReadCloser() + if err != nil { + return err + } + defer r.Close() + + return f.parse(r) +} + +// Reload reloads and parses all data sources. +func (f *File) Reload() (err error) { + for _, s := range f.dataSources { + if err = f.reload(s); err != nil { + return err + } + } + return nil +} + +// Append appends one or more data sources and reloads automatically. +func (f *File) Append(source interface{}, others ...interface{}) error { + ds, err := parseDataSource(source) + if err != nil { + return err + } + f.dataSources = append(f.dataSources, ds) + for _, s := range others { + ds, err = parseDataSource(s) + if err != nil { + return err + } + f.dataSources = append(f.dataSources, ds) + } + return f.Reload() +} + +// WriteToIndent writes file content into io.Writer with given value indention. +func (f *File) WriteToIndent(w io.Writer, indent string) (n int64, err error) { + equalSign := "=" + if PrettyFormat { + equalSign = " = " + } + + // Use buffer to make sure target is safe until finish encoding. + buf := bytes.NewBuffer(nil) + for i, sname := range f.sectionList { + sec := f.Section(sname) + if len(sec.Comment) > 0 { + if sec.Comment[0] != '#' && sec.Comment[0] != ';' { + sec.Comment = "; " + sec.Comment + } + if _, err = buf.WriteString(sec.Comment + LineBreak); err != nil { + return 0, err + } + } + + if i > 0 { + if _, err = buf.WriteString("[" + sname + "]" + LineBreak); err != nil { + return 0, err + } + } else { + // Write nothing if default section is empty. + if len(sec.keyList) == 0 { + continue + } + } + + for _, kname := range sec.keyList { + key := sec.Key(kname) + if len(key.Comment) > 0 { + if len(indent) > 0 && sname != DEFAULT_SECTION { + buf.WriteString(indent) + } + if key.Comment[0] != '#' && key.Comment[0] != ';' { + key.Comment = "; " + key.Comment + } + if _, err = buf.WriteString(key.Comment + LineBreak); err != nil { + return 0, err + } + } + + if len(indent) > 0 && sname != DEFAULT_SECTION { + buf.WriteString(indent) + } + + switch { + case key.isAutoIncr: + kname = "-" + case strings.ContainsAny(kname, "\"=:"): + kname = "`" + kname + "`" + case strings.Contains(kname, "`"): + kname = `"""` + kname + `"""` + } + + val := key.value + // In case key value contains "\n", "`", "\"", "#" or ";". + if strings.ContainsAny(val, "\n`") { + val = `"""` + val + `"""` + } else if strings.ContainsAny(val, "#;") { + val = "`" + val + "`" + } + if _, err = buf.WriteString(kname + equalSign + val + LineBreak); err != nil { + return 0, err + } + } + + // Put a line between sections. + if _, err = buf.WriteString(LineBreak); err != nil { + return 0, err + } + } + + return buf.WriteTo(w) +} + +// WriteTo writes file content into io.Writer. +func (f *File) WriteTo(w io.Writer) (int64, error) { + return f.WriteToIndent(w, "") +} + +// SaveToIndent writes content to file system with given value indention. +func (f *File) SaveToIndent(filename, indent string) error { + // Note: Because we are truncating with os.Create, + // so it's safer to save to a temporary file location and rename afte done. + tmpPath := filename + "." + strconv.Itoa(time.Now().Nanosecond()) + ".tmp" + defer os.Remove(tmpPath) + + fw, err := os.Create(tmpPath) + if err != nil { + return err + } + + if _, err = f.WriteToIndent(fw, indent); err != nil { + fw.Close() + return err + } + fw.Close() + + // Remove old file and rename the new one. + os.Remove(filename) + return os.Rename(tmpPath, filename) +} + +// SaveTo writes content to file system. +func (f *File) SaveTo(filename string) error { + return f.SaveToIndent(filename, "") +} diff --git a/Godeps/_workspace/src/github.com/go-ini/ini/parser.go b/Godeps/_workspace/src/github.com/go-ini/ini/parser.go new file mode 100644 index 0000000..1c1bf91 --- /dev/null +++ b/Godeps/_workspace/src/github.com/go-ini/ini/parser.go @@ -0,0 +1,312 @@ +// Copyright 2015 Unknwon +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package ini + +import ( + "bufio" + "bytes" + "fmt" + "io" + "strconv" + "strings" + "unicode" +) + +type tokenType int + +const ( + _TOKEN_INVALID tokenType = iota + _TOKEN_COMMENT + _TOKEN_SECTION + _TOKEN_KEY +) + +type parser struct { + buf *bufio.Reader + isEOF bool + count int + comment *bytes.Buffer +} + +func newParser(r io.Reader) *parser { + return &parser{ + buf: bufio.NewReader(r), + count: 1, + comment: &bytes.Buffer{}, + } +} + +// BOM handles header of BOM-UTF8 format. +// http://en.wikipedia.org/wiki/Byte_order_mark#Representations_of_byte_order_marks_by_encoding +func (p *parser) BOM() error { + mask, err := p.buf.Peek(3) + if err != nil && err != io.EOF { + return err + } else if len(mask) < 3 { + return nil + } else if mask[0] == 239 && mask[1] == 187 && mask[2] == 191 { + p.buf.Read(mask) + } + return nil +} + +func (p *parser) readUntil(delim byte) ([]byte, error) { + data, err := p.buf.ReadBytes(delim) + if err != nil { + if err == io.EOF { + p.isEOF = true + } else { + return nil, err + } + } + return data, nil +} + +func cleanComment(in []byte) ([]byte, bool) { + i := bytes.IndexAny(in, "#;") + if i == -1 { + return nil, false + } + return in[i:], true +} + +func readKeyName(in []byte) (string, int, error) { + line := string(in) + + // Check if key name surrounded by quotes. + var keyQuote string + if line[0] == '"' { + if len(line) > 6 && string(line[0:3]) == `"""` { + keyQuote = `"""` + } else { + keyQuote = `"` + } + } else if line[0] == '`' { + keyQuote = "`" + } + + // Get out key name + endIdx := -1 + if len(keyQuote) > 0 { + startIdx := len(keyQuote) + // FIXME: fail case -> """"""name"""=value + pos := strings.Index(line[startIdx:], keyQuote) + if pos == -1 { + return "", -1, fmt.Errorf("missing closing key quote: %s", line) + } + pos += startIdx + + // Find key-value delimiter + i := strings.IndexAny(line[pos+startIdx:], "=:") + if i < 0 { + return "", -1, fmt.Errorf("key-value delimiter not found: %s", line) + } + endIdx = pos + i + return strings.TrimSpace(line[startIdx:pos]), endIdx + startIdx + 1, nil + } + + endIdx = strings.IndexAny(line, "=:") + if endIdx < 0 { + return "", -1, fmt.Errorf("key-value delimiter not found: %s", line) + } + return strings.TrimSpace(line[0:endIdx]), endIdx + 1, nil +} + +func (p *parser) readMultilines(line, val, valQuote string) (string, error) { + for { + data, err := p.readUntil('\n') + if err != nil { + return "", err + } + next := string(data) + + pos := strings.LastIndex(next, valQuote) + if pos > -1 { + val += next[:pos] + + comment, has := cleanComment([]byte(next[pos:])) + if has { + p.comment.Write(bytes.TrimSpace(comment)) + } + break + } + val += next + if p.isEOF { + return "", fmt.Errorf("missing closing key quote from '%s' to '%s'", line, next) + } + } + return val, nil +} + +func (p *parser) readContinuationLines(val string) (string, error) { + for { + data, err := p.readUntil('\n') + if err != nil { + return "", err + } + next := strings.TrimSpace(string(data)) + + if len(next) == 0 { + break + } + val += next + if val[len(val)-1] != '\\' { + break + } + val = val[:len(val)-1] + } + return val, nil +} + +// hasSurroundedQuote check if and only if the first and last characters +// are quotes \" or \'. +// It returns false if any other parts also contain same kind of quotes. +func hasSurroundedQuote(in string, quote byte) bool { + return len(in) > 2 && in[0] == quote && in[len(in)-1] == quote && + strings.IndexByte(in[1:], quote) == len(in)-2 +} + +func (p *parser) readValue(in []byte) (string, error) { + line := strings.TrimLeftFunc(string(in), unicode.IsSpace) + if len(line) == 0 { + return "", nil + } + + var valQuote string + if len(line) > 3 && string(line[0:3]) == `"""` { + valQuote = `"""` + } else if line[0] == '`' { + valQuote = "`" + } + + if len(valQuote) > 0 { + startIdx := len(valQuote) + pos := strings.LastIndex(line[startIdx:], valQuote) + // Check for multi-line value + if pos == -1 { + return p.readMultilines(line, line[startIdx:], valQuote) + } + + return line[startIdx : pos+startIdx], nil + } + + // Won't be able to reach here if value only contains whitespace. + line = strings.TrimSpace(line) + + // Check continuation lines + if line[len(line)-1] == '\\' { + return p.readContinuationLines(line[:len(line)-1]) + } + + i := strings.IndexAny(line, "#;") + if i > -1 { + p.comment.WriteString(line[i:]) + line = strings.TrimSpace(line[:i]) + } + + // Trim single quotes + if hasSurroundedQuote(line, '\'') || + hasSurroundedQuote(line, '"') { + line = line[1 : len(line)-1] + } + return line, nil +} + +// parse parses data through an io.Reader. +func (f *File) parse(reader io.Reader) (err error) { + p := newParser(reader) + if err = p.BOM(); err != nil { + return fmt.Errorf("BOM: %v", err) + } + + // Ignore error because default section name is never empty string. + section, _ := f.NewSection(DEFAULT_SECTION) + + var line []byte + for !p.isEOF { + line, err = p.readUntil('\n') + if err != nil { + return err + } + + line = bytes.TrimLeftFunc(line, unicode.IsSpace) + if len(line) == 0 { + continue + } + + // Comments + if line[0] == '#' || line[0] == ';' { + // Note: we do not care ending line break, + // it is needed for adding second line, + // so just clean it once at the end when set to value. + p.comment.Write(line) + continue + } + + // Section + if line[0] == '[' { + // Read to the next ']' (TODO: support quoted strings) + closeIdx := bytes.IndexByte(line, ']') + if closeIdx == -1 { + return fmt.Errorf("unclosed section: %s", line) + } + + section, err = f.NewSection(string(line[1:closeIdx])) + if err != nil { + return err + } + + comment, has := cleanComment(line[closeIdx+1:]) + if has { + p.comment.Write(comment) + } + + section.Comment = strings.TrimSpace(p.comment.String()) + + // Reset aotu-counter and comments + p.comment.Reset() + p.count = 1 + continue + } + + kname, offset, err := readKeyName(line) + if err != nil { + return err + } + + // Auto increment. + isAutoIncr := false + if kname == "-" { + isAutoIncr = true + kname = "#" + strconv.Itoa(p.count) + p.count++ + } + + key, err := section.NewKey(kname, "") + if err != nil { + return err + } + key.isAutoIncr = isAutoIncr + + value, err := p.readValue(line[offset:]) + if err != nil { + return err + } + key.SetValue(value) + key.Comment = strings.TrimSpace(p.comment.String()) + p.comment.Reset() + } + return nil +} diff --git a/Godeps/_workspace/src/github.com/go-ini/ini/struct.go b/Godeps/_workspace/src/github.com/go-ini/ini/struct.go new file mode 100644 index 0000000..3fb92c3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/go-ini/ini/struct.go @@ -0,0 +1,351 @@ +// Copyright 2014 Unknwon +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package ini + +import ( + "bytes" + "errors" + "fmt" + "reflect" + "time" + "unicode" +) + +// NameMapper represents a ini tag name mapper. +type NameMapper func(string) string + +// Built-in name getters. +var ( + // AllCapsUnderscore converts to format ALL_CAPS_UNDERSCORE. + AllCapsUnderscore NameMapper = func(raw string) string { + newstr := make([]rune, 0, len(raw)) + for i, chr := range raw { + if isUpper := 'A' <= chr && chr <= 'Z'; isUpper { + if i > 0 { + newstr = append(newstr, '_') + } + } + newstr = append(newstr, unicode.ToUpper(chr)) + } + return string(newstr) + } + // TitleUnderscore converts to format title_underscore. + TitleUnderscore NameMapper = func(raw string) string { + newstr := make([]rune, 0, len(raw)) + for i, chr := range raw { + if isUpper := 'A' <= chr && chr <= 'Z'; isUpper { + if i > 0 { + newstr = append(newstr, '_') + } + chr -= ('A' - 'a') + } + newstr = append(newstr, chr) + } + return string(newstr) + } +) + +func (s *Section) parseFieldName(raw, actual string) string { + if len(actual) > 0 { + return actual + } + if s.f.NameMapper != nil { + return s.f.NameMapper(raw) + } + return raw +} + +func parseDelim(actual string) string { + if len(actual) > 0 { + return actual + } + return "," +} + +var reflectTime = reflect.TypeOf(time.Now()).Kind() + +// setWithProperType sets proper value to field based on its type, +// but it does not return error for failing parsing, +// because we want to use default value that is already assigned to strcut. +func setWithProperType(t reflect.Type, key *Key, field reflect.Value, delim string) error { + switch t.Kind() { + case reflect.String: + if len(key.String()) == 0 { + return nil + } + field.SetString(key.String()) + case reflect.Bool: + boolVal, err := key.Bool() + if err != nil { + return nil + } + field.SetBool(boolVal) + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + durationVal, err := key.Duration() + // Skip zero value + if err == nil && int(durationVal) > 0 { + field.Set(reflect.ValueOf(durationVal)) + return nil + } + + intVal, err := key.Int64() + if err != nil || intVal == 0 { + return nil + } + field.SetInt(intVal) + // byte is an alias for uint8, so supporting uint8 breaks support for byte + case reflect.Uint, reflect.Uint16, reflect.Uint32, reflect.Uint64: + durationVal, err := key.Duration() + if err == nil { + field.Set(reflect.ValueOf(durationVal)) + return nil + } + + uintVal, err := key.Uint64() + if err != nil { + return nil + } + field.SetUint(uintVal) + + case reflect.Float64: + floatVal, err := key.Float64() + if err != nil { + return nil + } + field.SetFloat(floatVal) + case reflectTime: + timeVal, err := key.Time() + if err != nil { + return nil + } + field.Set(reflect.ValueOf(timeVal)) + case reflect.Slice: + vals := key.Strings(delim) + numVals := len(vals) + if numVals == 0 { + return nil + } + + sliceOf := field.Type().Elem().Kind() + + var times []time.Time + if sliceOf == reflectTime { + times = key.Times(delim) + } + + slice := reflect.MakeSlice(field.Type(), numVals, numVals) + for i := 0; i < numVals; i++ { + switch sliceOf { + case reflectTime: + slice.Index(i).Set(reflect.ValueOf(times[i])) + default: + slice.Index(i).Set(reflect.ValueOf(vals[i])) + } + } + field.Set(slice) + default: + return fmt.Errorf("unsupported type '%s'", t) + } + return nil +} + +func (s *Section) mapTo(val reflect.Value) error { + if val.Kind() == reflect.Ptr { + val = val.Elem() + } + typ := val.Type() + + for i := 0; i < typ.NumField(); i++ { + field := val.Field(i) + tpField := typ.Field(i) + + tag := tpField.Tag.Get("ini") + if tag == "-" { + continue + } + + fieldName := s.parseFieldName(tpField.Name, tag) + if len(fieldName) == 0 || !field.CanSet() { + continue + } + + isAnonymous := tpField.Type.Kind() == reflect.Ptr && tpField.Anonymous + isStruct := tpField.Type.Kind() == reflect.Struct + if isAnonymous { + field.Set(reflect.New(tpField.Type.Elem())) + } + + if isAnonymous || isStruct { + if sec, err := s.f.GetSection(fieldName); err == nil { + if err = sec.mapTo(field); err != nil { + return fmt.Errorf("error mapping field(%s): %v", fieldName, err) + } + continue + } + } + + if key, err := s.GetKey(fieldName); err == nil { + if err = setWithProperType(tpField.Type, key, field, parseDelim(tpField.Tag.Get("delim"))); err != nil { + return fmt.Errorf("error mapping field(%s): %v", fieldName, err) + } + } + } + return nil +} + +// MapTo maps section to given struct. +func (s *Section) MapTo(v interface{}) error { + typ := reflect.TypeOf(v) + val := reflect.ValueOf(v) + if typ.Kind() == reflect.Ptr { + typ = typ.Elem() + val = val.Elem() + } else { + return errors.New("cannot map to non-pointer struct") + } + + return s.mapTo(val) +} + +// MapTo maps file to given struct. +func (f *File) MapTo(v interface{}) error { + return f.Section("").MapTo(v) +} + +// MapTo maps data sources to given struct with name mapper. +func MapToWithMapper(v interface{}, mapper NameMapper, source interface{}, others ...interface{}) error { + cfg, err := Load(source, others...) + if err != nil { + return err + } + cfg.NameMapper = mapper + return cfg.MapTo(v) +} + +// MapTo maps data sources to given struct. +func MapTo(v, source interface{}, others ...interface{}) error { + return MapToWithMapper(v, nil, source, others...) +} + +// reflectWithProperType does the opposite thing with setWithProperType. +func reflectWithProperType(t reflect.Type, key *Key, field reflect.Value, delim string) error { + switch t.Kind() { + case reflect.String: + key.SetValue(field.String()) + case reflect.Bool, + reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, + reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, + reflect.Float64, + reflectTime: + key.SetValue(fmt.Sprint(field)) + case reflect.Slice: + vals := field.Slice(0, field.Len()) + if field.Len() == 0 { + return nil + } + + var buf bytes.Buffer + isTime := fmt.Sprint(field.Type()) == "[]time.Time" + for i := 0; i < field.Len(); i++ { + if isTime { + buf.WriteString(vals.Index(i).Interface().(time.Time).Format(time.RFC3339)) + } else { + buf.WriteString(fmt.Sprint(vals.Index(i))) + } + buf.WriteString(delim) + } + key.SetValue(buf.String()[:buf.Len()-1]) + default: + return fmt.Errorf("unsupported type '%s'", t) + } + return nil +} + +func (s *Section) reflectFrom(val reflect.Value) error { + if val.Kind() == reflect.Ptr { + val = val.Elem() + } + typ := val.Type() + + for i := 0; i < typ.NumField(); i++ { + field := val.Field(i) + tpField := typ.Field(i) + + tag := tpField.Tag.Get("ini") + if tag == "-" { + continue + } + + fieldName := s.parseFieldName(tpField.Name, tag) + if len(fieldName) == 0 || !field.CanSet() { + continue + } + + if (tpField.Type.Kind() == reflect.Ptr && tpField.Anonymous) || + (tpField.Type.Kind() == reflect.Struct) { + // Note: The only error here is section doesn't exist. + sec, err := s.f.GetSection(fieldName) + if err != nil { + // Note: fieldName can never be empty here, ignore error. + sec, _ = s.f.NewSection(fieldName) + } + if err = sec.reflectFrom(field); err != nil { + return fmt.Errorf("error reflecting field(%s): %v", fieldName, err) + } + continue + } + + // Note: Same reason as secion. + key, err := s.GetKey(fieldName) + if err != nil { + key, _ = s.NewKey(fieldName, "") + } + if err = reflectWithProperType(tpField.Type, key, field, parseDelim(tpField.Tag.Get("delim"))); err != nil { + return fmt.Errorf("error reflecting field(%s): %v", fieldName, err) + } + + } + return nil +} + +// ReflectFrom reflects secion from given struct. +func (s *Section) ReflectFrom(v interface{}) error { + typ := reflect.TypeOf(v) + val := reflect.ValueOf(v) + if typ.Kind() == reflect.Ptr { + typ = typ.Elem() + val = val.Elem() + } else { + return errors.New("cannot reflect from non-pointer struct") + } + + return s.reflectFrom(val) +} + +// ReflectFrom reflects file from given struct. +func (f *File) ReflectFrom(v interface{}) error { + return f.Section("").ReflectFrom(v) +} + +// ReflectFrom reflects data sources from given struct with name mapper. +func ReflectFromWithMapper(cfg *File, v interface{}, mapper NameMapper) error { + cfg.NameMapper = mapper + return cfg.ReflectFrom(v) +} + +// ReflectFrom reflects data sources from given struct. +func ReflectFrom(cfg *File, v interface{}) error { + return ReflectFromWithMapper(cfg, v, nil) +} diff --git a/Godeps/_workspace/src/github.com/godbus/dbus/CONTRIBUTING.md b/Godeps/_workspace/src/github.com/godbus/dbus/CONTRIBUTING.md new file mode 100644 index 0000000..c88f9b2 --- /dev/null +++ b/Godeps/_workspace/src/github.com/godbus/dbus/CONTRIBUTING.md @@ -0,0 +1,50 @@ +# How to Contribute + +## Getting Started + +- Fork the repository on GitHub +- Read the [README](README.markdown) for build and test instructions +- Play with the project, submit bugs, submit patches! + +## Contribution Flow + +This is a rough outline of what a contributor's workflow looks like: + +- Create a topic branch from where you want to base your work (usually master). +- Make commits of logical units. +- Make sure your commit messages are in the proper format (see below). +- Push your changes to a topic branch in your fork of the repository. +- Make sure the tests pass, and add any new tests as appropriate. +- Submit a pull request to the original repository. + +Thanks for your contributions! + +### Format of the Commit Message + +We follow a rough convention for commit messages that is designed to answer two +questions: what changed and why. The subject line should feature the what and +the body of the commit should describe the why. + +``` +scripts: add the test-cluster command + +this uses tmux to setup a test cluster that you can easily kill and +start for debugging. + +Fixes #38 +``` + +The format can be described more formally as follows: + +``` +: + + + +