add log hooks

log/go.mod

@@ -6,9 +6,15 @@ require (
 	github.com/gin-contrib/sse v0.0.0-20190301062529-5545eab6dad3 // indirect
 	github.com/gin-gonic/gin v1.3.0
 	github.com/golang/protobuf v1.3.0 // indirect
+	github.com/json-iterator/go v1.1.5 // indirect
 	github.com/mattn/go-isatty v0.0.6 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.1 // indirect
 	github.com/sirupsen/logrus v1.3.0
 	github.com/ugorji/go/codec v0.0.0-20190204201341-e444a5086c43 // indirect
+	github.com/wpajqz/go-sdk v0.0.0-20180819022515-c5611acbd333
+	gopkg.in/airbrake/gobrake.v2 v2.0.9 // indirect
+	gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2 // indirect
 	gopkg.in/go-playground/validator.v8 v8.18.2 // indirect
 	gopkg.in/yaml.v2 v2.2.2 // indirect
 )

log/go.sum

@@ -1,13 +1,24 @@
+git.links123.net/links123.com/pkg v0.0.0-20190305161421-f7760ca72e73 h1:louYKnJtqtbqG353upoVwSNZxFPlIEKzFi+KoKtXW+I=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/gin-contrib/sse v0.0.0-20190301062529-5545eab6dad3 h1:t8FVkw33L+wilf2QiWkw0UV77qRpcH/JHPKGpKa2E8g=
 github.com/gin-contrib/sse v0.0.0-20190301062529-5545eab6dad3/go.mod h1:VJ0WA2NBN22VlZ2dKZQPAPnyWw5XTlK1KymzLKsr59s=
 github.com/gin-gonic/gin v1.3.0 h1:kCmZyPklC0gVdL728E6Aj20uYBJV93nj/TkwBTKhFbs=
 github.com/gin-gonic/gin v1.3.0/go.mod h1:7cKuhb5qV2ggCFctp2fJQ+ErvciLZrIeoOSOm6mUr7Y=
+github.com/golang/protobuf v1.1.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.0 h1:kbxbvI4Un1LUWKxufD+BiE6AEExYYgkQLQmLFqA1LFk=
 github.com/golang/protobuf v1.3.0/go.mod h1:Qd/q+1AKNOZr9uGQzbzCmRO6sUih6GTPZv6a1/R87v0=
+github.com/gorilla/websocket v1.2.0 h1:VJtLvh6VQym50czpZzx07z/kw9EgAxI3x1ZB8taTMQQ=
+github.com/gorilla/websocket v1.2.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
+github.com/json-iterator/go v1.1.5 h1:gL2yXlmiIo4+t+y32d4WGwOjKGYcGOuyrg46vadswDE=
+github.com/json-iterator/go v1.1.5/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
+github.com/konsorten/go-windows-terminal-sequences v1.0.1 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/mattn/go-isatty v0.0.6 h1:SrwhHcpV4nWrMGdNcC2kXpMfcBVYGDuTArqyhocJgvA=
 github.com/mattn/go-isatty v0.0.6/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
+github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
+github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
+github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
+github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/sirupsen/logrus v1.3.0 h1:hI/7Q+DtNZ2kINb6qt/lS+IyXnHQe9e90POfeewL/ME=
 github.com/sirupsen/logrus v1.3.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
@@ -17,6 +28,11 @@ github.com/ugorji/go v1.1.2 h1:JON3E2/GPW2iDNGoSAusl1KDf5TRQ8k8q7Tp097pZGs=
 github.com/ugorji/go v1.1.2/go.mod h1:hnLbHMwcvSihnDhEfx2/BzKp2xb0Y+ErdfYcrs9tkJQ=
 github.com/ugorji/go/codec v0.0.0-20190204201341-e444a5086c43 h1:BasDe+IErOQKrMVXab7UayvSlIpiyGwRvuX3EKYY7UA=
 github.com/ugorji/go/codec v0.0.0-20190204201341-e444a5086c43/go.mod h1:iT03XoTwV7xq/+UGwKO3UbC1nNNlopQiY61beSdrtOA=
+github.com/wpajqz/go-sdk v0.0.0-20180819022515-c5611acbd333 h1:uIekph2ww/ZvE3w3kC36LdwIjfGj3enaf1SNWEh04oQ=
+github.com/wpajqz/go-sdk v0.0.0-20180819022515-c5611acbd333/go.mod h1:8Z5OwaDGrREAqXYMHp9WVhDIkZdeJFfNbUyjYQGRg8U=
+github.com/wpajqz/linker v0.0.0-20180818151004-5d64412a1130 h1:Ag6S5CgRpXz7sB8oRT98hWrPBvBGTM2Dv5dPD7wFdgc=
+github.com/wpajqz/linker v0.0.0-20180818151004-5d64412a1130/go.mod h1:1LpNSex7lqvQi8t5uj9LBLKsvxfm3HK2j6o5Ht3BGmQ=
+golang.org/x/crypto v0.0.0-20180904163835-0709b304e793 h1:u+LnwYTOOW7Ukr/fppxEb1Nwz0AtPflrblfvUudpo+I=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -24,7 +40,11 @@ golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223 h1:DH4skfRX4EBpamg7iV4ZlCpblAHI6s6TDM39bFZumv8=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 google.golang.org/genproto v0.0.0-20180831171423-11092d34479b/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
+gopkg.in/airbrake/gobrake.v2 v2.0.9 h1:7z2uVWwn7oVeeugY1DtlPAy5H+KYgB1KeKTnqjNatLo=
+gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2 h1:OAj3g0cR6Dx/R07QgQe8wkA9RNjB2u4i700xBkIT4e0=
+gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2/go.mod h1:Xk6kEKp8OKb+X14hQBKWaSkCsqBpgog8nAV2xsGOxlo=
 gopkg.in/go-playground/validator.v8 v8.18.2 h1:lFB4DoMU6B626w8ny76MV7VX6W2VHct2GVOI3xgiMrQ=
 gopkg.in/go-playground/validator.v8 v8.18.2/go.mod h1:RX2a/7Ha8BgOhfk7j780h4/u/RRjR0eouCJSH80/M2Y=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=

log/hooks/client.go

@@ -0,0 +1,141 @@
+package hooks
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"sync"
+	"time"
+
+	"github.com/sirupsen/logrus"
+	"github.com/wpajqz/go-sdk/export"
+)
+
+const (
+	timeout       = 5 * time.Second
+	retryInterval = 100 * time.Microsecond
+)
+
+const (
+	notifyPath = "/v1/notify"
+)
+
+var (
+	defaultClient *Client
+	once          = &sync.Once{}
+)
+
+type Client struct{ tcpClient *export.Client }
+
+func (c *Client) Notify(req *NotifyRequest) (*NotifyResponse, error) {
+	if err := req.Check(); err != nil {
+		return nil, err
+	}
+	param, err := json.Marshal(req)
+	if err != nil {
+		return nil, err
+	}
+
+	var resp NotifyResponse
+
+	err = c.tcpClient.SyncSend(notifyPath, param, &RequestStatusCallback{
+		Success: func(header, body []byte) {
+			err = json.Unmarshal(body, &resp)
+		},
+		Error: func(code int, message string) {
+			err = errors.New(message)
+		},
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return &resp, err
+}
+
+func NewClient(server string, port int) *Client {
+	once.Do(func() {
+		defaultClient = &Client{tcpClient: export.NewClient(server, port, &ReadyStateCallback{})}
+
+		ctx, cancel := context.WithTimeout(context.Background(), timeout)
+		defer cancel()
+
+		for {
+			select {
+			case <-time.After(retryInterval):
+				if defaultClient.tcpClient.GetReadyState() == export.OPEN {
+					return
+				}
+			case <-ctx.Done():
+				panic("connect link timeout ...")
+			}
+		}
+	})
+
+	return defaultClient
+}
+
+func GetClient() *Client {
+	return defaultClient
+}
+
+type (
+	NotifyRequest struct {
+		Project     string   `json:"project"`
+		Maintainers []string `json:"maintainers"`
+		Message     string   `json:"message"`
+		Time        string   `json:"time"`
+	}
+	NotifyResponse struct {
+	}
+)
+
+func (ar *NotifyRequest) Check() error {
+	return nil
+}
+
+type (
+	ReadyStateCallback    struct{}
+	RequestStatusCallback struct {
+		Start   func()
+		End     func()
+		Success func(header, body []byte)
+		Error   func(code int, message string)
+	}
+)
+
+func (readyStateCallback *ReadyStateCallback) OnOpen() {
+	logrus.Info("open link socket connection")
+}
+
+func (readyStateCallback *ReadyStateCallback) OnClose() {
+	logrus.Info("close link socket connection")
+}
+
+func (readyStateCallback *ReadyStateCallback) OnError(err string) {
+	logrus.Infof("error:%s", err)
+}
+
+func (r RequestStatusCallback) OnStart() {
+	if r.Start != nil {
+		r.Start()
+	}
+}
+
+func (r RequestStatusCallback) OnSuccess(header, body []byte) {
+	if r.Success != nil {
+		r.Success(header, body)
+	}
+}
+
+func (r RequestStatusCallback) OnError(code int, message string) {
+	if r.Error != nil {
+		r.Error(code, message)
+	}
+}
+
+func (r RequestStatusCallback) OnEnd() {
+	if r.End != nil {
+		r.End()
+	}
+}

log/hooks/notification.go

@@ -0,0 +1,102 @@
+package hooks
+
+import (
+	"fmt"
+
+	"github.com/sirupsen/logrus"
+)
+
+var linkClient *Client
+
+type NotificationHook struct {
+	Project     *Project
+	Maintainers []*Maintainer
+	NS          *NotificationService
+}
+
+type Project struct {
+	Name   string
+	Domain string
+}
+
+type Maintainer struct {
+	Name  string
+	Email string
+}
+
+type NotificationService struct {
+	Addr string
+	Port int
+}
+
+func DefaultMaintainers() []*Maintainer {
+	return []*Maintainer{
+		{
+			Name:  "Paul",
+			Email: "paul@links123.com",
+		},
+		{
+			Name:  "Adam",
+			Email: "adam@links123.com",
+		},
+		{
+			Name:  "Whao",
+			Email: "whao@links123.com",
+		},
+		{
+			Name:  "Slate",
+			Email: "slate@links123.com",
+		},
+	}
+}
+
+func DefaultNotificationService() *NotificationService {
+	return &NotificationService{
+		Addr: "127.0.0.1",
+		Port: 8085,
+	}
+}
+
+func (nh *NotificationHook) Fire(entry *logrus.Entry) error {
+	return notify(nh, entry)
+}
+
+func (nh *NotificationHook) Levels() []logrus.Level {
+	return []logrus.Level{
+		logrus.ErrorLevel,
+		logrus.FatalLevel,
+		logrus.PanicLevel,
+	}
+}
+
+func NewNotificationHook(project *Project, maintainers []*Maintainer, ns *NotificationService) (*NotificationHook, error) {
+	if project == nil {
+		return nil, fmt.Errorf("project is required")
+	}
+	if maintainers == nil {
+		return nil, fmt.Errorf("maintainers muest not be blank")
+	}
+	if ns == nil {
+		return nil, fmt.Errorf("notification service is required")
+	}
+
+	if linkClient == nil {
+		linkClient = NewClient(ns.Addr, ns.Port)
+	}
+
+	return &NotificationHook{Project: project, Maintainers: maintainers, NS: ns}, nil
+}
+
+func notify(nh *NotificationHook, entry *logrus.Entry) error {
+	var emails []string
+	for _, m := range nh.Maintainers {
+		emails = append(emails, m.Email)
+	}
+	_, err := defaultClient.Notify(&NotifyRequest{
+		Project:     nh.Project.Name,
+		Maintainers: emails,
+		Message:     entry.Message,
+		Time:        entry.Time.Format("2006-02-01 15:04:05"),
+	})
+	return err
+}

log/logger.go

@@ -1,13 +1,24 @@
 package log
 
 import (
+	"git.links123.net/links123.com/pkg/log/hooks"
 	"github.com/gin-gonic/gin"
 	"github.com/sirupsen/logrus"
 )
 
 var logger *logrus.Logger
 
-func init() {
+func NewDefaultLogger(project *hooks.Project) error {
+	return NewLogger(project, hooks.DefaultMaintainers(), hooks.DefaultNotificationService())
+}
+
+func NewLogger(project *hooks.Project, maintainers []*hooks.Maintainer, ns *hooks.NotificationService) error {
+	notificationHook, err := hooks.NewNotificationHook(project, maintainers, ns)
+	if err != nil {
+		return err
+	}
+
+	logrus.AddHook(notificationHook)
 	logger = logrus.New()
 
 	switch gin.Mode() {
@@ -18,4 +29,6 @@ func init() {
 	default:
 		panic("unsupported running mode")
 	}
+
+	return nil
 }

log/vendor/github.com/gin-contrib/sse/.travis.yml

@@ -0,0 +1,26 @@
+language: go
+sudo: false
+go:
+  - 1.8.x
+  - 1.9.x
+  - 1.10.x
+  - 1.11.x
+  - 1.12.x
+  - master
+
+git:
+  depth: 10
+
+matrix:
+  fast_finish: true
+  include:
+  - go: 1.11.x
+    env: GO111MODULE=on
+  - go: 1.12.x
+    env: GO111MODULE=on
+
+script:
+  - go test -v -covermode=count -coverprofile=coverage.out
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

log/vendor/github.com/gin-contrib/sse/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.

log/vendor/github.com/gin-contrib/sse/README.md

@@ -0,0 +1,58 @@
+# Server-Sent Events
+
+[![GoDoc](https://godoc.org/github.com/gin-contrib/sse?status.svg)](https://godoc.org/github.com/gin-contrib/sse)
+[![Build Status](https://travis-ci.org/gin-contrib/sse.svg)](https://travis-ci.org/gin-contrib/sse)
+[![codecov](https://codecov.io/gh/gin-contrib/sse/branch/master/graph/badge.svg)](https://codecov.io/gh/gin-contrib/sse)
+[![Go Report Card](https://goreportcard.com/badge/github.com/gin-contrib/sse)](https://goreportcard.com/report/github.com/gin-contrib/sse)
+
+Server-sent events (SSE) is a technology where a browser receives automatic updates from a server via HTTP connection. The Server-Sent Events EventSource API is [standardized as part of HTML5[1] by the W3C](http://www.w3.org/TR/2009/WD-eventsource-20091029/).
+
+- [Read this great SSE introduction by the HTML5Rocks guys](http://www.html5rocks.com/en/tutorials/eventsource/basics/)
+- [Browser support](http://caniuse.com/#feat=eventsource)
+
+## Sample code
+
+```go
+import "github.com/gin-contrib/sse"
+
+func httpHandler(w http.ResponseWriter, req *http.Request) {
+	// data can be a primitive like a string, an integer or a float
+	sse.Encode(w, sse.Event{
+		Event: "message",
+		Data:  "some data\nmore data",
+	})
+
+	// also a complex type, like a map, a struct or a slice
+	sse.Encode(w, sse.Event{
+		Id:    "124",
+		Event: "message",
+		Data: map[string]interface{}{
+			"user":    "manu",
+			"date":    time.Now().Unix(),
+			"content": "hi!",
+		},
+	})
+}
+```
+```
+event: message
+data: some data\\nmore data
+
+id: 124
+event: message
+data: {"content":"hi!","date":1431540810,"user":"manu"}
+ 
+```
+
+## Content-Type
+
+```go
+fmt.Println(sse.ContentType)
+```
+```
+text/event-stream
+```
+
+## Decoding support
+
+There is a client-side implementation of SSE coming soon.

log/vendor/github.com/gin-contrib/sse/sse-decoder.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 sse
+
+import (
+	"bytes"
+	"io"
+	"io/ioutil"
+)
+
+type decoder struct {
+	events []Event
+}
+
+func Decode(r io.Reader) ([]Event, error) {
+	var dec decoder
+	return dec.decode(r)
+}
+
+func (d *decoder) dispatchEvent(event Event, data string) {
+	dataLength := len(data)
+	if dataLength > 0 {
+		//If the data buffer's last character is a U+000A LINE FEED (LF) character, then remove the last character from the data buffer.
+		data = data[:dataLength-1]
+		dataLength--
+	}
+	if dataLength == 0 && event.Event == "" {
+		return
+	}
+	if event.Event == "" {
+		event.Event = "message"
+	}
+	event.Data = data
+	d.events = append(d.events, event)
+}
+
+func (d *decoder) decode(r io.Reader) ([]Event, error) {
+	buf, err := ioutil.ReadAll(r)
+	if err != nil {
+		return nil, err
+	}
+
+	var currentEvent Event
+	var dataBuffer *bytes.Buffer = new(bytes.Buffer)
+	// TODO (and unit tests)
+	// Lines must be separated by either a U+000D CARRIAGE RETURN U+000A LINE FEED (CRLF) character pair,
+	// a single U+000A LINE FEED (LF) character,
+	// or a single U+000D CARRIAGE RETURN (CR) character.
+	lines := bytes.Split(buf, []byte{'\n'})
+	for _, line := range lines {
+		if len(line) == 0 {
+			// If the line is empty (a blank line). Dispatch the event.
+			d.dispatchEvent(currentEvent, dataBuffer.String())
+
+			// reset current event and data buffer
+			currentEvent = Event{}
+			dataBuffer.Reset()
+			continue
+		}
+		if line[0] == byte(':') {
+			// If the line starts with a U+003A COLON character (:), ignore the line.
+			continue
+		}
+
+		var field, value []byte
+		colonIndex := bytes.IndexRune(line, ':')
+		if colonIndex != -1 {
+			// If the line contains a U+003A COLON character character (:)
+			// Collect the characters on the line before the first U+003A COLON character (:),
+			// and let field be that string.
+			field = line[:colonIndex]
+			// Collect the characters on the line after the first U+003A COLON character (:),
+			// and let value be that string.
+			value = line[colonIndex+1:]
+			// If value starts with a single U+0020 SPACE character, remove it from value.
+			if len(value) > 0 && value[0] == ' ' {
+				value = value[1:]
+			}
+		} else {
+			// Otherwise, the string is not empty but does not contain a U+003A COLON character character (:)
+			// Use the whole line as the field name, and the empty string as the field value.
+			field = line
+			value = []byte{}
+		}
+		// The steps to process the field given a field name and a field value depend on the field name,
+		// as given in the following list. Field names must be compared literally,
+		// with no case folding performed.
+		switch string(field) {
+		case "event":
+			// Set the event name buffer to field value.
+			currentEvent.Event = string(value)
+		case "id":
+			// Set the event stream's last event ID to the field value.
+			currentEvent.Id = string(value)
+		case "retry":
+			// If the field value consists of only characters in the range U+0030 DIGIT ZERO (0) to U+0039 DIGIT NINE (9),
+			// then interpret the field value as an integer in base ten, and set the event stream's reconnection time to that integer.
+			// Otherwise, ignore the field.
+			currentEvent.Id = string(value)
+		case "data":
+			// Append the field value to the data buffer,
+			dataBuffer.Write(value)
+			// then append a single U+000A LINE FEED (LF) character to the data buffer.
+			dataBuffer.WriteString("\n")
+		default:
+			//Otherwise. The field is ignored.
+			continue
+		}
+	}
+	// Once the end of the file is reached, the user agent must dispatch the event one final time.
+	d.dispatchEvent(currentEvent, dataBuffer.String())
+
+	return d.events, nil
+}

log/vendor/github.com/gin-contrib/sse/sse-encoder.go

@@ -0,0 +1,110 @@
+// 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 sse
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"reflect"
+	"strconv"
+	"strings"
+)
+
+// Server-Sent Events
+// W3C Working Draft 29 October 2009
+// http://www.w3.org/TR/2009/WD-eventsource-20091029/
+
+const ContentType = "text/event-stream"
+
+var contentType = []string{ContentType}
+var noCache = []string{"no-cache"}
+
+var fieldReplacer = strings.NewReplacer(
+	"\n", "\\n",
+	"\r", "\\r")
+
+var dataReplacer = strings.NewReplacer(
+	"\n", "\ndata:",
+	"\r", "\\r")
+
+type Event struct {
+	Event string
+	Id    string
+	Retry uint
+	Data  interface{}
+}
+
+func Encode(writer io.Writer, event Event) error {
+	w := checkWriter(writer)
+	writeId(w, event.Id)
+	writeEvent(w, event.Event)
+	writeRetry(w, event.Retry)
+	return writeData(w, event.Data)
+}
+
+func writeId(w stringWriter, id string) {
+	if len(id) > 0 {
+		w.WriteString("id:")
+		fieldReplacer.WriteString(w, id)
+		w.WriteString("\n")
+	}
+}
+
+func writeEvent(w stringWriter, event string) {
+	if len(event) > 0 {
+		w.WriteString("event:")
+		fieldReplacer.WriteString(w, event)
+		w.WriteString("\n")
+	}
+}
+
+func writeRetry(w stringWriter, retry uint) {
+	if retry > 0 {
+		w.WriteString("retry:")
+		w.WriteString(strconv.FormatUint(uint64(retry), 10))
+		w.WriteString("\n")
+	}
+}
+
+func writeData(w stringWriter, data interface{}) error {
+	w.WriteString("data:")
+	switch kindOfData(data) {
+	case reflect.Struct, reflect.Slice, reflect.Map:
+		err := json.NewEncoder(w).Encode(data)
+		if err != nil {
+			return err
+		}
+		w.WriteString("\n")
+	default:
+		dataReplacer.WriteString(w, fmt.Sprint(data))
+		w.WriteString("\n\n")
+	}
+	return nil
+}
+
+func (r Event) Render(w http.ResponseWriter) error {
+	r.WriteContentType(w)
+	return Encode(w, r)
+}
+
+func (r Event) WriteContentType(w http.ResponseWriter) {
+	header := w.Header()
+	header["Content-Type"] = contentType
+
+	if _, exist := header["Cache-Control"]; !exist {
+		header["Cache-Control"] = noCache
+	}
+}
+
+func kindOfData(data interface{}) reflect.Kind {
+	value := reflect.ValueOf(data)
+	valueType := value.Kind()
+	if valueType == reflect.Ptr {
+		valueType = value.Elem().Kind()
+	}
+	return valueType
+}

log/vendor/github.com/gin-contrib/sse/writer.go

@@ -0,0 +1,24 @@
+package sse
+
+import "io"
+
+type stringWriter interface {
+	io.Writer
+	WriteString(string) (int, error)
+}
+
+type stringWrapper struct {
+	io.Writer
+}
+
+func (w stringWrapper) WriteString(str string) (int, error) {
+	return w.Writer.Write([]byte(str))
+}
+
+func checkWriter(writer io.Writer) stringWriter {
+	if w, ok := writer.(stringWriter); ok {
+		return w
+	} else {
+		return stringWrapper{writer}
+	}
+}

log/vendor/github.com/gin-gonic/gin/.gitignore

@@ -0,0 +1,5 @@
+vendor/*
+!vendor/vendor.json
+coverage.out
+count.out
+test

log/vendor/github.com/gin-gonic/gin/.travis.yml

@@ -0,0 +1,35 @@
+language: go
+sudo: false
+go:
+  - 1.6.x
+  - 1.7.x
+  - 1.8.x
+  - 1.9.x
+  - 1.10.x
+  - master
+
+git:
+  depth: 10
+
+install:
+  - make install
+
+go_import_path: github.com/gin-gonic/gin
+
+script:
+  - make vet
+  - make fmt-check
+  - make embedmd
+  - make misspell-check
+  - make test
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)
+
+notifications:
+  webhooks:
+    urls:
+      - https://webhooks.gitter.im/e/7f95bf605c4d356372f4
+    on_success: change  # options: [always|never|change] default: always
+    on_failure: always  # options: [always|never|change] default: always
+    on_start: false     # default: false

log/vendor/github.com/gin-gonic/gin/AUTHORS.md

@@ -0,0 +1,231 @@
+List of all the awesome people working to make Gin the best Web Framework in Go.
+
+## gin 1.x series authors
+
+**Gin Core Team:** Bo-Yi Wu (@appleboy), 田欧 (@thinkerou), Javier Provecho (@javierprovecho)
+
+## gin 0.x series authors
+
+**Maintainers:** 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

log/vendor/github.com/gin-gonic/gin/BENCHMARKS.md

@@ -0,0 +1,604 @@
+
+## Benchmark System
+
+**VM HOST:** DigitalOcean  
+**Machine:** 4 CPU, 8 GB RAM. Ubuntu 16.04.2 x64  
+**Date:** July 19th, 2017  
+**Go Version:** 1.8.3 linux/amd64  
+**Source:** [Go HTTP Router Benchmark](https://github.com/julienschmidt/go-http-routing-benchmark)  
+
+## Static Routes: 157
+
+```
+Gin:             30512 Bytes
+
+HttpServeMux:    17344 Bytes
+Ace:             30080 Bytes
+Bear:            30472 Bytes
+Beego:           96408 Bytes
+Bone:            37904 Bytes
+Denco:           10464 Bytes
+Echo:            73680 Bytes
+GocraftWeb:      55720 Bytes
+Goji:            27200 Bytes
+Gojiv2:         104464 Bytes
+GoJsonRest:     136472 Bytes
+GoRestful:      914904 Bytes
+GorillaMux:     675568 Bytes
+HttpRouter:      21128 Bytes
+HttpTreeMux:     73448 Bytes
+Kocha:          115072 Bytes
+LARS:            30120 Bytes
+Macaron:         37984 Bytes
+Martini:        310832 Bytes
+Pat:             20464 Bytes
+Possum:          91328 Bytes
+R2router:        23712 Bytes
+Rivet:           23880 Bytes
+Tango:           28008 Bytes
+TigerTonic:      80368 Bytes
+Traffic:        626480 Bytes
+Vulcan:         369064 Bytes
+```
+
+## GithubAPI Routes: 203
+
+```
+Gin:             52672 Bytes
+
+Ace:             48992 Bytes
+Bear:           161592 Bytes
+Beego:          147992 Bytes
+Bone:            97728 Bytes
+Denco:           36440 Bytes
+Echo:            95672 Bytes
+GocraftWeb:      95640 Bytes
+Goji:            86088 Bytes
+Gojiv2:         144392 Bytes
+GoJsonRest:     134648 Bytes
+GoRestful:     1410760 Bytes
+GorillaMux:    1509488 Bytes
+HttpRouter:      37464 Bytes
+HttpTreeMux:     78800 Bytes
+Kocha:          785408 Bytes
+LARS:            49032 Bytes
+Macaron:        132712 Bytes
+Martini:        564352 Bytes
+Pat:             21200 Bytes
+Possum:          83888 Bytes
+R2router:        47104 Bytes
+Rivet:           42840 Bytes
+Tango:           54584 Bytes
+TigerTonic:      96384 Bytes
+Traffic:       1061920 Bytes
+Vulcan:         465296 Bytes
+```
+
+## GPlusAPI Routes: 13
+
+```
+Gin:              3968 Bytes
+
+Ace:              3600 Bytes
+Bear:             7112 Bytes
+Beego:           10048 Bytes
+Bone:             6480 Bytes
+Denco:            3256 Bytes
+Echo:             9000 Bytes
+GocraftWeb:       7496 Bytes
+Goji:             2912 Bytes
+Gojiv2:           7376 Bytes
+GoJsonRest:      11544 Bytes
+GoRestful:       88776 Bytes
+GorillaMux:      71488 Bytes
+HttpRouter:       2712 Bytes
+HttpTreeMux:      7440 Bytes
+Kocha:          128880 Bytes
+LARS:             3640 Bytes
+Macaron:          8656 Bytes
+Martini:         23936 Bytes
+Pat:              1856 Bytes
+Possum:           7248 Bytes
+R2router:         3928 Bytes
+Rivet:            3064 Bytes
+Tango:            4912 Bytes
+TigerTonic:       9408 Bytes
+Traffic:         49472 Bytes
+Vulcan:          25496 Bytes
+```
+
+## ParseAPI Routes: 26
+
+```
+Gin:              6928 Bytes
+
+Ace:              6592 Bytes
+Bear:            12320 Bytes
+Beego:           18960 Bytes
+Bone:            11024 Bytes
+Denco:            4184 Bytes
+Echo:            11168 Bytes
+GocraftWeb:      12800 Bytes
+Goji:             5232 Bytes
+Gojiv2:          14464 Bytes
+GoJsonRest:      14216 Bytes
+GoRestful:      127368 Bytes
+GorillaMux:     123016 Bytes
+HttpRouter:       4976 Bytes
+HttpTreeMux:      7848 Bytes
+Kocha:          181712 Bytes
+LARS:             6632 Bytes
+Macaron:         13648 Bytes
+Martini:         45952 Bytes
+Pat:              2560 Bytes
+Possum:           9200 Bytes
+R2router:         7056 Bytes
+Rivet:            5680 Bytes
+Tango:            8664 Bytes
+TigerTonic:       9840 Bytes
+Traffic:         93480 Bytes
+Vulcan:          44504 Bytes
+```
+
+## Static Routes
+
+```
+BenchmarkGin_StaticAll                     50000             34506 ns/op               0 B/op          0 allocs/op
+
+BenchmarkAce_StaticAll                     30000             49657 ns/op               0 B/op          0 allocs/op
+BenchmarkHttpServeMux_StaticAll             2000           1183737 ns/op              96 B/op          8 allocs/op
+BenchmarkBeego_StaticAll                    5000            412621 ns/op           57776 B/op        628 allocs/op
+BenchmarkBear_StaticAll                    10000            149242 ns/op           20336 B/op        461 allocs/op
+BenchmarkBone_StaticAll                    10000            118583 ns/op               0 B/op          0 allocs/op
+BenchmarkDenco_StaticAll                  100000             13247 ns/op               0 B/op          0 allocs/op
+BenchmarkEcho_StaticAll                    20000             79914 ns/op            5024 B/op        157 allocs/op
+BenchmarkGocraftWeb_StaticAll              10000            211823 ns/op           46440 B/op        785 allocs/op
+BenchmarkGoji_StaticAll                    10000            109390 ns/op               0 B/op          0 allocs/op
+BenchmarkGojiv2_StaticAll                   3000            415533 ns/op          145696 B/op       1099 allocs/op
+BenchmarkGoJsonRest_StaticAll               5000            364403 ns/op           51653 B/op       1727 allocs/op
+BenchmarkGoRestful_StaticAll                 500           2578579 ns/op          314936 B/op       3144 allocs/op
+BenchmarkGorillaMux_StaticAll                500           2704856 ns/op          115648 B/op       1578 allocs/op
+BenchmarkHttpRouter_StaticAll             100000             18541 ns/op               0 B/op          0 allocs/op
+BenchmarkHttpTreeMux_StaticAll            100000             22332 ns/op               0 B/op          0 allocs/op
+BenchmarkKocha_StaticAll                   50000             31176 ns/op               0 B/op          0 allocs/op
+BenchmarkLARS_StaticAll                    50000             40840 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_StaticAll                  5000            517656 ns/op          120576 B/op       1413 allocs/op
+BenchmarkMartini_StaticAll                   300           4462289 ns/op          125442 B/op       1717 allocs/op
+BenchmarkPat_StaticAll                       500           2157275 ns/op          533904 B/op      11123 allocs/op
+BenchmarkPossum_StaticAll                  10000            254701 ns/op           65312 B/op        471 allocs/op
+BenchmarkR2router_StaticAll                10000            133956 ns/op           22608 B/op        628 allocs/op
+BenchmarkRivet_StaticAll                   30000             46812 ns/op               0 B/op          0 allocs/op
+BenchmarkTango_StaticAll                    5000            390613 ns/op           39225 B/op       1256 allocs/op
+BenchmarkTigerTonic_StaticAll              20000             88060 ns/op            7504 B/op        157 allocs/op
+BenchmarkTraffic_StaticAll                   500           2910236 ns/op          729736 B/op      14287 allocs/op
+BenchmarkVulcan_StaticAll                   5000            277366 ns/op           15386 B/op        471 allocs/op
+```
+
+## Micro Benchmarks
+
+```
+BenchmarkGin_Param                      20000000               113 ns/op               0 B/op          0 allocs/op
+
+BenchmarkAce_Param                       5000000               375 ns/op              32 B/op          1 allocs/op
+BenchmarkBear_Param                      1000000              1709 ns/op             456 B/op          5 allocs/op
+BenchmarkBeego_Param                     1000000              2484 ns/op             368 B/op          4 allocs/op
+BenchmarkBone_Param                      1000000              2391 ns/op             688 B/op          5 allocs/op
+BenchmarkDenco_Param                    10000000               240 ns/op              32 B/op          1 allocs/op
+BenchmarkEcho_Param                      5000000               366 ns/op              32 B/op          1 allocs/op
+BenchmarkGocraftWeb_Param                1000000              2343 ns/op             648 B/op          8 allocs/op
+BenchmarkGoji_Param                      1000000              1197 ns/op             336 B/op          2 allocs/op
+BenchmarkGojiv2_Param                    1000000              2771 ns/op             944 B/op          8 allocs/op
+BenchmarkGoJsonRest_Param                1000000              2993 ns/op             649 B/op         13 allocs/op
+BenchmarkGoRestful_Param                  200000              8860 ns/op            2296 B/op         21 allocs/op
+BenchmarkGorillaMux_Param                 500000              4461 ns/op            1056 B/op         11 allocs/op
+BenchmarkHttpRouter_Param               10000000               175 ns/op              32 B/op          1 allocs/op
+BenchmarkHttpTreeMux_Param               1000000              1167 ns/op             352 B/op          3 allocs/op
+BenchmarkKocha_Param                     3000000               429 ns/op              56 B/op          3 allocs/op
+BenchmarkLARS_Param                     10000000               134 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_Param                    500000              4635 ns/op            1056 B/op         10 allocs/op
+BenchmarkMartini_Param                    200000              9933 ns/op            1072 B/op         10 allocs/op
+BenchmarkPat_Param                       1000000              2929 ns/op             648 B/op         12 allocs/op
+BenchmarkPossum_Param                    1000000              2503 ns/op             560 B/op          6 allocs/op
+BenchmarkR2router_Param                  1000000              1507 ns/op             432 B/op          5 allocs/op
+BenchmarkRivet_Param                     5000000               297 ns/op              48 B/op          1 allocs/op
+BenchmarkTango_Param                     1000000              1862 ns/op             248 B/op          8 allocs/op
+BenchmarkTigerTonic_Param                 500000              5660 ns/op             992 B/op         17 allocs/op
+BenchmarkTraffic_Param                    200000              8408 ns/op            1960 B/op         21 allocs/op
+BenchmarkVulcan_Param                    2000000               963 ns/op              98 B/op          3 allocs/op
+BenchmarkAce_Param5                      2000000               740 ns/op             160 B/op          1 allocs/op
+BenchmarkBear_Param5                     1000000              2777 ns/op             501 B/op          5 allocs/op
+BenchmarkBeego_Param5                    1000000              3740 ns/op             368 B/op          4 allocs/op
+BenchmarkBone_Param5                     1000000              2950 ns/op             736 B/op          5 allocs/op
+BenchmarkDenco_Param5                    2000000               644 ns/op             160 B/op          1 allocs/op
+BenchmarkEcho_Param5                     3000000               558 ns/op              32 B/op          1 allocs/op
+BenchmarkGin_Param5                     10000000               198 ns/op               0 B/op          0 allocs/op
+BenchmarkGocraftWeb_Param5                500000              3870 ns/op             920 B/op         11 allocs/op
+BenchmarkGoji_Param5                     1000000              1746 ns/op             336 B/op          2 allocs/op
+BenchmarkGojiv2_Param5                   1000000              3214 ns/op            1008 B/op          8 allocs/op
+BenchmarkGoJsonRest_Param5                500000              5509 ns/op            1097 B/op         16 allocs/op
+BenchmarkGoRestful_Param5                 200000             11232 ns/op            2392 B/op         21 allocs/op
+BenchmarkGorillaMux_Param5                300000              7777 ns/op            1184 B/op         11 allocs/op
+BenchmarkHttpRouter_Param5               3000000               631 ns/op             160 B/op          1 allocs/op
+BenchmarkHttpTreeMux_Param5              1000000              2800 ns/op             576 B/op          6 allocs/op
+BenchmarkKocha_Param5                    1000000              2053 ns/op             440 B/op         10 allocs/op
+BenchmarkLARS_Param5                    10000000               232 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_Param5                   500000              5888 ns/op            1056 B/op         10 allocs/op
+BenchmarkMartini_Param5                   200000             12807 ns/op            1232 B/op         11 allocs/op
+BenchmarkPat_Param5                       300000              7320 ns/op             964 B/op         32 allocs/op
+BenchmarkPossum_Param5                   1000000              2495 ns/op             560 B/op          6 allocs/op
+BenchmarkR2router_Param5                 1000000              1844 ns/op             432 B/op          5 allocs/op
+BenchmarkRivet_Param5                    2000000               935 ns/op             240 B/op          1 allocs/op
+BenchmarkTango_Param5                    1000000              2327 ns/op             360 B/op          8 allocs/op
+BenchmarkTigerTonic_Param5                100000             18514 ns/op            2551 B/op         43 allocs/op
+BenchmarkTraffic_Param5                   200000             11997 ns/op            2248 B/op         25 allocs/op
+BenchmarkVulcan_Param5                   1000000              1333 ns/op              98 B/op          3 allocs/op
+BenchmarkAce_Param20                     1000000              2031 ns/op             640 B/op          1 allocs/op
+BenchmarkBear_Param20                     200000              7285 ns/op            1664 B/op          5 allocs/op
+BenchmarkBeego_Param20                    300000              6224 ns/op             368 B/op          4 allocs/op
+BenchmarkBone_Param20                     200000              8023 ns/op            1903 B/op          5 allocs/op
+BenchmarkDenco_Param20                   1000000              2262 ns/op             640 B/op          1 allocs/op
+BenchmarkEcho_Param20                    1000000              1387 ns/op              32 B/op          1 allocs/op
+BenchmarkGin_Param20                     3000000               503 ns/op               0 B/op          0 allocs/op
+BenchmarkGocraftWeb_Param20               100000             14408 ns/op            3795 B/op         15 allocs/op
+BenchmarkGoji_Param20                     500000              5272 ns/op            1247 B/op          2 allocs/op
+BenchmarkGojiv2_Param20                  1000000              4163 ns/op            1248 B/op          8 allocs/op
+BenchmarkGoJsonRest_Param20               100000             17866 ns/op            4485 B/op         20 allocs/op
+BenchmarkGoRestful_Param20                100000             21022 ns/op            4724 B/op         23 allocs/op
+BenchmarkGorillaMux_Param20               100000             17055 ns/op            3547 B/op         13 allocs/op
+BenchmarkHttpRouter_Param20              1000000              1748 ns/op             640 B/op          1 allocs/op
+BenchmarkHttpTreeMux_Param20              200000             12246 ns/op            3196 B/op         10 allocs/op
+BenchmarkKocha_Param20                    300000              6861 ns/op            1808 B/op         27 allocs/op
+BenchmarkLARS_Param20                    3000000               526 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_Param20                  100000             13069 ns/op            2906 B/op         12 allocs/op
+BenchmarkMartini_Param20                  100000             23602 ns/op            3597 B/op         13 allocs/op
+BenchmarkPat_Param20                       50000             32143 ns/op            4688 B/op        111 allocs/op
+BenchmarkPossum_Param20                  1000000              2396 ns/op             560 B/op          6 allocs/op
+BenchmarkR2router_Param20                 200000              8907 ns/op            2283 B/op          7 allocs/op
+BenchmarkRivet_Param20                   1000000              3280 ns/op            1024 B/op          1 allocs/op
+BenchmarkTango_Param20                    500000              4640 ns/op             856 B/op          8 allocs/op
+BenchmarkTigerTonic_Param20                20000             67581 ns/op           10532 B/op        138 allocs/op
+BenchmarkTraffic_Param20                   50000             40313 ns/op            7941 B/op         45 allocs/op
+BenchmarkVulcan_Param20                  1000000              2264 ns/op              98 B/op          3 allocs/op
+BenchmarkAce_ParamWrite                  3000000               532 ns/op              40 B/op          2 allocs/op
+BenchmarkBear_ParamWrite                 1000000              1778 ns/op             456 B/op          5 allocs/op
+BenchmarkBeego_ParamWrite                1000000              2596 ns/op             376 B/op          5 allocs/op
+BenchmarkBone_ParamWrite                 1000000              2519 ns/op             688 B/op          5 allocs/op
+BenchmarkDenco_ParamWrite                5000000               411 ns/op              32 B/op          1 allocs/op
+BenchmarkEcho_ParamWrite                 2000000               718 ns/op              40 B/op          2 allocs/op
+BenchmarkGin_ParamWrite                  5000000               283 ns/op               0 B/op          0 allocs/op
+BenchmarkGocraftWeb_ParamWrite           1000000              2561 ns/op             656 B/op          9 allocs/op
+BenchmarkGoji_ParamWrite                 1000000              1378 ns/op             336 B/op          2 allocs/op
+BenchmarkGojiv2_ParamWrite               1000000              3128 ns/op             976 B/op         10 allocs/op
+BenchmarkGoJsonRest_ParamWrite            500000              4446 ns/op            1128 B/op         18 allocs/op
+BenchmarkGoRestful_ParamWrite             200000             10291 ns/op            2304 B/op         22 allocs/op
+BenchmarkGorillaMux_ParamWrite            500000              5153 ns/op            1064 B/op         12 allocs/op
+BenchmarkHttpRouter_ParamWrite           5000000               263 ns/op              32 B/op          1 allocs/op
+BenchmarkHttpTreeMux_ParamWrite          1000000              1351 ns/op             352 B/op          3 allocs/op
+BenchmarkKocha_ParamWrite                3000000               538 ns/op              56 B/op          3 allocs/op
+BenchmarkLARS_ParamWrite                 5000000               316 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_ParamWrite               500000              5756 ns/op            1160 B/op         14 allocs/op
+BenchmarkMartini_ParamWrite               200000             13097 ns/op            1176 B/op         14 allocs/op
+BenchmarkPat_ParamWrite                   500000              4954 ns/op            1072 B/op         17 allocs/op
+BenchmarkPossum_ParamWrite               1000000              2499 ns/op             560 B/op          6 allocs/op
+BenchmarkR2router_ParamWrite             1000000              1531 ns/op             432 B/op          5 allocs/op
+BenchmarkRivet_ParamWrite                3000000               570 ns/op             112 B/op          2 allocs/op
+BenchmarkTango_ParamWrite                2000000               957 ns/op             136 B/op          4 allocs/op
+BenchmarkTigerTonic_ParamWrite            200000              7025 ns/op            1424 B/op         23 allocs/op
+BenchmarkTraffic_ParamWrite               200000             10112 ns/op            2384 B/op         25 allocs/op
+BenchmarkVulcan_ParamWrite               1000000              1006 ns/op              98 B/op          3 allocs/op
+```
+
+## GitHub
+
+```
+BenchmarkGin_GithubStatic               10000000               156 ns/op               0 B/op          0 allocs/op
+
+BenchmarkAce_GithubStatic                5000000               294 ns/op               0 B/op          0 allocs/op
+BenchmarkBear_GithubStatic               2000000               893 ns/op             120 B/op          3 allocs/op
+BenchmarkBeego_GithubStatic              1000000              2491 ns/op             368 B/op          4 allocs/op
+BenchmarkBone_GithubStatic                 50000             25300 ns/op            2880 B/op         60 allocs/op
+BenchmarkDenco_GithubStatic             20000000                76.0 ns/op             0 B/op          0 allocs/op
+BenchmarkEcho_GithubStatic               2000000               516 ns/op              32 B/op          1 allocs/op
+BenchmarkGocraftWeb_GithubStatic         1000000              1448 ns/op             296 B/op          5 allocs/op
+BenchmarkGoji_GithubStatic               3000000               496 ns/op               0 B/op          0 allocs/op
+BenchmarkGojiv2_GithubStatic             1000000              2941 ns/op             928 B/op          7 allocs/op
+BenchmarkGoRestful_GithubStatic           100000             27256 ns/op            3224 B/op         22 allocs/op
+BenchmarkGoJsonRest_GithubStatic         1000000              2196 ns/op             329 B/op         11 allocs/op
+BenchmarkGorillaMux_GithubStatic           50000             31617 ns/op             736 B/op         10 allocs/op
+BenchmarkHttpRouter_GithubStatic        20000000                88.4 ns/op             0 B/op          0 allocs/op
+BenchmarkHttpTreeMux_GithubStatic       10000000               134 ns/op               0 B/op          0 allocs/op
+BenchmarkKocha_GithubStatic             20000000               113 ns/op               0 B/op          0 allocs/op
+BenchmarkLARS_GithubStatic              10000000               195 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_GithubStatic             500000              3740 ns/op             768 B/op          9 allocs/op
+BenchmarkMartini_GithubStatic              50000             27673 ns/op             768 B/op          9 allocs/op
+BenchmarkPat_GithubStatic                 100000             19470 ns/op            3648 B/op         76 allocs/op
+BenchmarkPossum_GithubStatic             1000000              1729 ns/op             416 B/op          3 allocs/op
+BenchmarkR2router_GithubStatic           2000000               879 ns/op             144 B/op          4 allocs/op
+BenchmarkRivet_GithubStatic             10000000               231 ns/op               0 B/op          0 allocs/op
+BenchmarkTango_GithubStatic              1000000              2325 ns/op             248 B/op          8 allocs/op
+BenchmarkTigerTonic_GithubStatic         3000000               610 ns/op              48 B/op          1 allocs/op
+BenchmarkTraffic_GithubStatic              20000             62973 ns/op           18904 B/op        148 allocs/op
+BenchmarkVulcan_GithubStatic             1000000              1447 ns/op              98 B/op          3 allocs/op
+BenchmarkAce_GithubParam                 2000000               686 ns/op              96 B/op          1 allocs/op
+BenchmarkBear_GithubParam                1000000              2155 ns/op             496 B/op          5 allocs/op
+BenchmarkBeego_GithubParam               1000000              2713 ns/op             368 B/op          4 allocs/op
+BenchmarkBone_GithubParam                 100000             15088 ns/op            1760 B/op         18 allocs/op
+BenchmarkDenco_GithubParam               2000000               629 ns/op             128 B/op          1 allocs/op
+BenchmarkEcho_GithubParam                2000000               653 ns/op              32 B/op          1 allocs/op
+BenchmarkGin_GithubParam                 5000000               255 ns/op               0 B/op          0 allocs/op
+BenchmarkGocraftWeb_GithubParam          1000000              3145 ns/op             712 B/op          9 allocs/op
+BenchmarkGoji_GithubParam                1000000              1916 ns/op             336 B/op          2 allocs/op
+BenchmarkGojiv2_GithubParam              1000000              3975 ns/op            1024 B/op         10 allocs/op
+BenchmarkGoJsonRest_GithubParam           300000              4134 ns/op             713 B/op         14 allocs/op
+BenchmarkGoRestful_GithubParam             50000             30782 ns/op            2360 B/op         21 allocs/op
+BenchmarkGorillaMux_GithubParam           100000             17148 ns/op            1088 B/op         11 allocs/op
+BenchmarkHttpRouter_GithubParam          3000000               523 ns/op              96 B/op          1 allocs/op
+BenchmarkHttpTreeMux_GithubParam         1000000              1671 ns/op             384 B/op          4 allocs/op
+BenchmarkKocha_GithubParam               1000000              1021 ns/op             128 B/op          5 allocs/op
+BenchmarkLARS_GithubParam                5000000               283 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_GithubParam              500000              4270 ns/op            1056 B/op         10 allocs/op
+BenchmarkMartini_GithubParam              100000             21728 ns/op            1152 B/op         11 allocs/op
+BenchmarkPat_GithubParam                  200000             11208 ns/op            2464 B/op         48 allocs/op
+BenchmarkPossum_GithubParam              1000000              2334 ns/op             560 B/op          6 allocs/op
+BenchmarkR2router_GithubParam            1000000              1487 ns/op             432 B/op          5 allocs/op
+BenchmarkRivet_GithubParam               2000000               782 ns/op              96 B/op          1 allocs/op
+BenchmarkTango_GithubParam               1000000              2653 ns/op             344 B/op          8 allocs/op
+BenchmarkTigerTonic_GithubParam           300000             14073 ns/op            1440 B/op         24 allocs/op
+BenchmarkTraffic_GithubParam               50000             29164 ns/op            5992 B/op         52 allocs/op
+BenchmarkVulcan_GithubParam              1000000              2529 ns/op              98 B/op          3 allocs/op
+BenchmarkAce_GithubAll                     10000            134059 ns/op           13792 B/op        167 allocs/op
+BenchmarkBear_GithubAll                     5000            534445 ns/op           86448 B/op        943 allocs/op
+BenchmarkBeego_GithubAll                    3000            592444 ns/op           74705 B/op        812 allocs/op
+BenchmarkBone_GithubAll                      200           6957308 ns/op          698784 B/op       8453 allocs/op
+BenchmarkDenco_GithubAll                   10000            158819 ns/op           20224 B/op        167 allocs/op
+BenchmarkEcho_GithubAll                    10000            154700 ns/op            6496 B/op        203 allocs/op
+BenchmarkGin_GithubAll                     30000             48375 ns/op               0 B/op          0 allocs/op
+BenchmarkGocraftWeb_GithubAll               3000            570806 ns/op          131656 B/op       1686 allocs/op
+BenchmarkGoji_GithubAll                     2000            818034 ns/op           56112 B/op        334 allocs/op
+BenchmarkGojiv2_GithubAll                   2000           1213973 ns/op          274768 B/op       3712 allocs/op
+BenchmarkGoJsonRest_GithubAll               2000            785796 ns/op          134371 B/op       2737 allocs/op
+BenchmarkGoRestful_GithubAll                 300           5238188 ns/op          689672 B/op       4519 allocs/op
+BenchmarkGorillaMux_GithubAll                100          10257726 ns/op          211840 B/op       2272 allocs/op
+BenchmarkHttpRouter_GithubAll              20000            105414 ns/op           13792 B/op        167 allocs/op
+BenchmarkHttpTreeMux_GithubAll             10000            319934 ns/op           65856 B/op        671 allocs/op
+BenchmarkKocha_GithubAll                   10000            209442 ns/op           23304 B/op        843 allocs/op
+BenchmarkLARS_GithubAll                    20000             62565 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_GithubAll                  2000           1161270 ns/op          204194 B/op       2000 allocs/op
+BenchmarkMartini_GithubAll                   200           9991713 ns/op          226549 B/op       2325 allocs/op
+BenchmarkPat_GithubAll                       200           5590793 ns/op         1499568 B/op      27435 allocs/op
+BenchmarkPossum_GithubAll                  10000            319768 ns/op           84448 B/op        609 allocs/op
+BenchmarkR2router_GithubAll                10000            305134 ns/op           77328 B/op        979 allocs/op
+BenchmarkRivet_GithubAll                   10000            132134 ns/op           16272 B/op        167 allocs/op
+BenchmarkTango_GithubAll                    3000            552754 ns/op           63826 B/op       1618 allocs/op
+BenchmarkTigerTonic_GithubAll               1000           1439483 ns/op          239104 B/op       5374 allocs/op
+BenchmarkTraffic_GithubAll                   100          11383067 ns/op         2659329 B/op      21848 allocs/op
+BenchmarkVulcan_GithubAll                   5000            394253 ns/op           19894 B/op        609 allocs/op
+```
+
+## Google+
+
+```
+BenchmarkGin_GPlusStatic                10000000               183 ns/op               0 B/op          0 allocs/op
+
+BenchmarkAce_GPlusStatic                 5000000               276 ns/op               0 B/op          0 allocs/op
+BenchmarkBear_GPlusStatic                2000000               652 ns/op             104 B/op          3 allocs/op
+BenchmarkBeego_GPlusStatic               1000000              2239 ns/op             368 B/op          4 allocs/op
+BenchmarkBone_GPlusStatic                5000000               380 ns/op              32 B/op          1 allocs/op
+BenchmarkDenco_GPlusStatic              30000000                45.8 ns/op             0 B/op          0 allocs/op
+BenchmarkEcho_GPlusStatic                5000000               338 ns/op              32 B/op          1 allocs/op
+BenchmarkGocraftWeb_GPlusStatic          1000000              1158 ns/op             280 B/op          5 allocs/op
+BenchmarkGoji_GPlusStatic                5000000               331 ns/op               0 B/op          0 allocs/op
+BenchmarkGojiv2_GPlusStatic              1000000              2106 ns/op             928 B/op          7 allocs/op
+BenchmarkGoJsonRest_GPlusStatic          1000000              1626 ns/op             329 B/op         11 allocs/op
+BenchmarkGoRestful_GPlusStatic            300000              7598 ns/op            1976 B/op         20 allocs/op
+BenchmarkGorillaMux_GPlusStatic          1000000              2629 ns/op             736 B/op         10 allocs/op
+BenchmarkHttpRouter_GPlusStatic         30000000                52.5 ns/op             0 B/op          0 allocs/op
+BenchmarkHttpTreeMux_GPlusStatic        20000000                85.8 ns/op             0 B/op          0 allocs/op
+BenchmarkKocha_GPlusStatic              20000000                89.2 ns/op             0 B/op          0 allocs/op
+BenchmarkLARS_GPlusStatic               10000000               162 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_GPlusStatic              500000              3479 ns/op             768 B/op          9 allocs/op
+BenchmarkMartini_GPlusStatic              200000              9092 ns/op             768 B/op          9 allocs/op
+BenchmarkPat_GPlusStatic                 3000000               493 ns/op              96 B/op          2 allocs/op
+BenchmarkPossum_GPlusStatic              1000000              1467 ns/op             416 B/op          3 allocs/op
+BenchmarkR2router_GPlusStatic            2000000               788 ns/op             144 B/op          4 allocs/op
+BenchmarkRivet_GPlusStatic              20000000               114 ns/op               0 B/op          0 allocs/op
+BenchmarkTango_GPlusStatic               1000000              1534 ns/op             200 B/op          8 allocs/op
+BenchmarkTigerTonic_GPlusStatic          5000000               282 ns/op              32 B/op          1 allocs/op
+BenchmarkTraffic_GPlusStatic              500000              3798 ns/op            1192 B/op         15 allocs/op
+BenchmarkVulcan_GPlusStatic              2000000              1125 ns/op              98 B/op          3 allocs/op
+BenchmarkAce_GPlusParam                  3000000               528 ns/op              64 B/op          1 allocs/op
+BenchmarkBear_GPlusParam                 1000000              1570 ns/op             480 B/op          5 allocs/op
+BenchmarkBeego_GPlusParam                1000000              2369 ns/op             368 B/op          4 allocs/op
+BenchmarkBone_GPlusParam                 1000000              2028 ns/op             688 B/op          5 allocs/op
+BenchmarkDenco_GPlusParam                5000000               385 ns/op              64 B/op          1 allocs/op
+BenchmarkEcho_GPlusParam                 3000000               441 ns/op              32 B/op          1 allocs/op
+BenchmarkGin_GPlusParam                 10000000               174 ns/op               0 B/op          0 allocs/op
+BenchmarkGocraftWeb_GPlusParam           1000000              2033 ns/op             648 B/op          8 allocs/op
+BenchmarkGoji_GPlusParam                 1000000              1399 ns/op             336 B/op          2 allocs/op
+BenchmarkGojiv2_GPlusParam               1000000              2641 ns/op             944 B/op          8 allocs/op
+BenchmarkGoJsonRest_GPlusParam           1000000              2824 ns/op             649 B/op         13 allocs/op
+BenchmarkGoRestful_GPlusParam             200000              8875 ns/op            2296 B/op         21 allocs/op
+BenchmarkGorillaMux_GPlusParam            200000              6291 ns/op            1056 B/op         11 allocs/op
+BenchmarkHttpRouter_GPlusParam           5000000               316 ns/op              64 B/op          1 allocs/op
+BenchmarkHttpTreeMux_GPlusParam          1000000              1129 ns/op             352 B/op          3 allocs/op
+BenchmarkKocha_GPlusParam                3000000               538 ns/op              56 B/op          3 allocs/op
+BenchmarkLARS_GPlusParam                10000000               198 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_GPlusParam               500000              3554 ns/op            1056 B/op         10 allocs/op
+BenchmarkMartini_GPlusParam               200000              9831 ns/op            1072 B/op         10 allocs/op
+BenchmarkPat_GPlusParam                  1000000              2706 ns/op             688 B/op         12 allocs/op
+BenchmarkPossum_GPlusParam               1000000              2297 ns/op             560 B/op          6 allocs/op
+BenchmarkR2router_GPlusParam             1000000              1318 ns/op             432 B/op          5 allocs/op
+BenchmarkRivet_GPlusParam                5000000               399 ns/op              48 B/op          1 allocs/op
+BenchmarkTango_GPlusParam                1000000              2070 ns/op             264 B/op          8 allocs/op
+BenchmarkTigerTonic_GPlusParam            500000              4853 ns/op            1056 B/op         17 allocs/op
+BenchmarkTraffic_GPlusParam               200000              8278 ns/op            1976 B/op         21 allocs/op
+BenchmarkVulcan_GPlusParam               1000000              1243 ns/op              98 B/op          3 allocs/op
+BenchmarkAce_GPlus2Params                3000000               549 ns/op              64 B/op          1 allocs/op
+BenchmarkBear_GPlus2Params               1000000              2112 ns/op             496 B/op          5 allocs/op
+BenchmarkBeego_GPlus2Params               500000              2750 ns/op             368 B/op          4 allocs/op
+BenchmarkBone_GPlus2Params                300000              7032 ns/op            1040 B/op          9 allocs/op
+BenchmarkDenco_GPlus2Params              3000000               502 ns/op              64 B/op          1 allocs/op
+BenchmarkEcho_GPlus2Params               3000000               641 ns/op              32 B/op          1 allocs/op
+BenchmarkGin_GPlus2Params                5000000               250 ns/op               0 B/op          0 allocs/op
+BenchmarkGocraftWeb_GPlus2Params         1000000              2681 ns/op             712 B/op          9 allocs/op
+BenchmarkGoji_GPlus2Params               1000000              1926 ns/op             336 B/op          2 allocs/op
+BenchmarkGojiv2_GPlus2Params              500000              3996 ns/op            1024 B/op         11 allocs/op
+BenchmarkGoJsonRest_GPlus2Params          500000              3886 ns/op             713 B/op         14 allocs/op
+BenchmarkGoRestful_GPlus2Params           200000             10376 ns/op            2360 B/op         21 allocs/op
+BenchmarkGorillaMux_GPlus2Params          100000             14162 ns/op            1088 B/op         11 allocs/op
+BenchmarkHttpRouter_GPlus2Params         5000000               336 ns/op              64 B/op          1 allocs/op
+BenchmarkHttpTreeMux_GPlus2Params        1000000              1523 ns/op             384 B/op          4 allocs/op
+BenchmarkKocha_GPlus2Params              2000000               970 ns/op             128 B/op          5 allocs/op
+BenchmarkLARS_GPlus2Params               5000000               238 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_GPlus2Params             500000              4016 ns/op            1056 B/op         10 allocs/op
+BenchmarkMartini_GPlus2Params             100000             21253 ns/op            1200 B/op         13 allocs/op
+BenchmarkPat_GPlus2Params                 200000              8632 ns/op            2256 B/op         34 allocs/op
+BenchmarkPossum_GPlus2Params             1000000              2171 ns/op             560 B/op          6 allocs/op
+BenchmarkR2router_GPlus2Params           1000000              1340 ns/op             432 B/op          5 allocs/op
+BenchmarkRivet_GPlus2Params              3000000               557 ns/op              96 B/op          1 allocs/op
+BenchmarkTango_GPlus2Params              1000000              2186 ns/op             344 B/op          8 allocs/op
+BenchmarkTigerTonic_GPlus2Params          200000              9060 ns/op            1488 B/op         24 allocs/op
+BenchmarkTraffic_GPlus2Params             100000             20324 ns/op            3272 B/op         31 allocs/op
+BenchmarkVulcan_GPlus2Params             1000000              2039 ns/op              98 B/op          3 allocs/op
+BenchmarkAce_GPlusAll                     300000              6603 ns/op             640 B/op         11 allocs/op
+BenchmarkBear_GPlusAll                    100000             22363 ns/op            5488 B/op         61 allocs/op
+BenchmarkBeego_GPlusAll                    50000             38757 ns/op            4784 B/op         52 allocs/op
+BenchmarkBone_GPlusAll                     20000             54916 ns/op           10336 B/op         98 allocs/op
+BenchmarkDenco_GPlusAll                   300000              4959 ns/op             672 B/op         11 allocs/op
+BenchmarkEcho_GPlusAll                    200000              6558 ns/op             416 B/op         13 allocs/op
+BenchmarkGin_GPlusAll                     500000              2757 ns/op               0 B/op          0 allocs/op
+BenchmarkGocraftWeb_GPlusAll               50000             34615 ns/op            8040 B/op        103 allocs/op
+BenchmarkGoji_GPlusAll                    100000             16002 ns/op            3696 B/op         22 allocs/op
+BenchmarkGojiv2_GPlusAll                   50000             35060 ns/op           12624 B/op        115 allocs/op
+BenchmarkGoJsonRest_GPlusAll               50000             41479 ns/op            8117 B/op        170 allocs/op
+BenchmarkGoRestful_GPlusAll                10000            131653 ns/op           32024 B/op        275 allocs/op
+BenchmarkGorillaMux_GPlusAll               10000            101380 ns/op           13296 B/op        142 allocs/op
+BenchmarkHttpRouter_GPlusAll              500000              3711 ns/op             640 B/op         11 allocs/op
+BenchmarkHttpTreeMux_GPlusAll             100000             14438 ns/op            4032 B/op         38 allocs/op
+BenchmarkKocha_GPlusAll                   200000              8039 ns/op             976 B/op         43 allocs/op
+BenchmarkLARS_GPlusAll                    500000              2630 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_GPlusAll                  30000             51123 ns/op           13152 B/op        128 allocs/op
+BenchmarkMartini_GPlusAll                  10000            176157 ns/op           14016 B/op        145 allocs/op
+BenchmarkPat_GPlusAll                      20000             69911 ns/op           16576 B/op        298 allocs/op
+BenchmarkPossum_GPlusAll                  100000             20716 ns/op            5408 B/op         39 allocs/op
+BenchmarkR2router_GPlusAll                100000             17463 ns/op            5040 B/op         63 allocs/op
+BenchmarkRivet_GPlusAll                   300000              5142 ns/op             768 B/op         11 allocs/op
+BenchmarkTango_GPlusAll                    50000             27321 ns/op            3656 B/op        104 allocs/op
+BenchmarkTigerTonic_GPlusAll               20000             77597 ns/op           14512 B/op        288 allocs/op
+BenchmarkTraffic_GPlusAll                  10000            151406 ns/op           37360 B/op        392 allocs/op
+BenchmarkVulcan_GPlusAll                  100000             18555 ns/op            1274 B/op         39 allocs/op
+```
+
+## Parse.com
+
+```
+BenchmarkGin_ParseStatic                10000000               133 ns/op               0 B/op          0 allocs/op
+
+BenchmarkAce_ParseStatic                 5000000               241 ns/op               0 B/op          0 allocs/op
+BenchmarkBear_ParseStatic                2000000               728 ns/op             120 B/op          3 allocs/op
+BenchmarkBeego_ParseStatic               1000000              2623 ns/op             368 B/op          4 allocs/op
+BenchmarkBone_ParseStatic                1000000              1285 ns/op             144 B/op          3 allocs/op
+BenchmarkDenco_ParseStatic              30000000                57.8 ns/op             0 B/op          0 allocs/op
+BenchmarkEcho_ParseStatic                5000000               342 ns/op              32 B/op          1 allocs/op
+BenchmarkGocraftWeb_ParseStatic          1000000              1478 ns/op             296 B/op          5 allocs/op
+BenchmarkGoji_ParseStatic                3000000               415 ns/op               0 B/op          0 allocs/op
+BenchmarkGojiv2_ParseStatic              1000000              2087 ns/op             928 B/op          7 allocs/op
+BenchmarkGoJsonRest_ParseStatic          1000000              1712 ns/op             329 B/op         11 allocs/op
+BenchmarkGoRestful_ParseStatic            200000             11072 ns/op            3224 B/op         22 allocs/op
+BenchmarkGorillaMux_ParseStatic           500000              4129 ns/op             752 B/op         11 allocs/op
+BenchmarkHttpRouter_ParseStatic         30000000                52.4 ns/op             0 B/op          0 allocs/op
+BenchmarkHttpTreeMux_ParseStatic        20000000               109 ns/op               0 B/op          0 allocs/op
+BenchmarkKocha_ParseStatic              20000000                81.8 ns/op             0 B/op          0 allocs/op
+BenchmarkLARS_ParseStatic               10000000               150 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_ParseStatic             1000000              3288 ns/op             768 B/op          9 allocs/op
+BenchmarkMartini_ParseStatic              200000              9110 ns/op             768 B/op          9 allocs/op
+BenchmarkPat_ParseStatic                 1000000              1135 ns/op             240 B/op          5 allocs/op
+BenchmarkPossum_ParseStatic              1000000              1557 ns/op             416 B/op          3 allocs/op
+BenchmarkR2router_ParseStatic            2000000               730 ns/op             144 B/op          4 allocs/op
+BenchmarkRivet_ParseStatic              10000000               121 ns/op               0 B/op          0 allocs/op
+BenchmarkTango_ParseStatic               1000000              1688 ns/op             248 B/op          8 allocs/op
+BenchmarkTigerTonic_ParseStatic          3000000               427 ns/op              48 B/op          1 allocs/op
+BenchmarkTraffic_ParseStatic              500000              5962 ns/op            1816 B/op         20 allocs/op
+BenchmarkVulcan_ParseStatic              2000000               969 ns/op              98 B/op          3 allocs/op
+BenchmarkAce_ParseParam                  3000000               497 ns/op              64 B/op          1 allocs/op
+BenchmarkBear_ParseParam                 1000000              1473 ns/op             467 B/op          5 allocs/op
+BenchmarkBeego_ParseParam                1000000              2384 ns/op             368 B/op          4 allocs/op
+BenchmarkBone_ParseParam                 1000000              2513 ns/op             768 B/op          6 allocs/op
+BenchmarkDenco_ParseParam                5000000               364 ns/op              64 B/op          1 allocs/op
+BenchmarkEcho_ParseParam                 5000000               418 ns/op              32 B/op          1 allocs/op
+BenchmarkGin_ParseParam                 10000000               163 ns/op               0 B/op          0 allocs/op
+BenchmarkGocraftWeb_ParseParam           1000000              2361 ns/op             664 B/op          8 allocs/op
+BenchmarkGoji_ParseParam                 1000000              1590 ns/op             336 B/op          2 allocs/op
+BenchmarkGojiv2_ParseParam               1000000              2851 ns/op             976 B/op          9 allocs/op
+BenchmarkGoJsonRest_ParseParam           1000000              2965 ns/op             649 B/op         13 allocs/op
+BenchmarkGoRestful_ParseParam             200000             12207 ns/op            3544 B/op         23 allocs/op
+BenchmarkGorillaMux_ParseParam            500000              5187 ns/op            1088 B/op         12 allocs/op
+BenchmarkHttpRouter_ParseParam           5000000               275 ns/op              64 B/op          1 allocs/op
+BenchmarkHttpTreeMux_ParseParam          1000000              1108 ns/op             352 B/op          3 allocs/op
+BenchmarkKocha_ParseParam                3000000               495 ns/op              56 B/op          3 allocs/op
+BenchmarkLARS_ParseParam                10000000               192 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_ParseParam               500000              4103 ns/op            1056 B/op         10 allocs/op
+BenchmarkMartini_ParseParam               200000              9878 ns/op            1072 B/op         10 allocs/op
+BenchmarkPat_ParseParam                   500000              3657 ns/op            1120 B/op         17 allocs/op
+BenchmarkPossum_ParseParam               1000000              2084 ns/op             560 B/op          6 allocs/op
+BenchmarkR2router_ParseParam             1000000              1251 ns/op             432 B/op          5 allocs/op
+BenchmarkRivet_ParseParam                5000000               335 ns/op              48 B/op          1 allocs/op
+BenchmarkTango_ParseParam                1000000              1854 ns/op             280 B/op          8 allocs/op
+BenchmarkTigerTonic_ParseParam            500000              4582 ns/op            1008 B/op         17 allocs/op
+BenchmarkTraffic_ParseParam               200000              8125 ns/op            2248 B/op         23 allocs/op
+BenchmarkVulcan_ParseParam               1000000              1148 ns/op              98 B/op          3 allocs/op
+BenchmarkAce_Parse2Params                3000000               539 ns/op              64 B/op          1 allocs/op
+BenchmarkBear_Parse2Params               1000000              1778 ns/op             496 B/op          5 allocs/op
+BenchmarkBeego_Parse2Params              1000000              2519 ns/op             368 B/op          4 allocs/op
+BenchmarkBone_Parse2Params               1000000              2596 ns/op             720 B/op          5 allocs/op
+BenchmarkDenco_Parse2Params              3000000               492 ns/op              64 B/op          1 allocs/op
+BenchmarkEcho_Parse2Params               3000000               484 ns/op              32 B/op          1 allocs/op
+BenchmarkGin_Parse2Params               10000000               193 ns/op               0 B/op          0 allocs/op
+BenchmarkGocraftWeb_Parse2Params         1000000              2575 ns/op             712 B/op          9 allocs/op
+BenchmarkGoji_Parse2Params               1000000              1373 ns/op             336 B/op          2 allocs/op
+BenchmarkGojiv2_Parse2Params              500000              2416 ns/op             960 B/op          8 allocs/op
+BenchmarkGoJsonRest_Parse2Params          300000              3452 ns/op             713 B/op         14 allocs/op
+BenchmarkGoRestful_Parse2Params           100000             17719 ns/op            6008 B/op         25 allocs/op
+BenchmarkGorillaMux_Parse2Params          300000              5102 ns/op            1088 B/op         11 allocs/op
+BenchmarkHttpRouter_Parse2Params         5000000               303 ns/op              64 B/op          1 allocs/op
+BenchmarkHttpTreeMux_Parse2Params        1000000              1372 ns/op             384 B/op          4 allocs/op
+BenchmarkKocha_Parse2Params              2000000               874 ns/op             128 B/op          5 allocs/op
+BenchmarkLARS_Parse2Params              10000000               192 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_Parse2Params             500000              3871 ns/op            1056 B/op         10 allocs/op
+BenchmarkMartini_Parse2Params             200000              9954 ns/op            1152 B/op         11 allocs/op
+BenchmarkPat_Parse2Params                 500000              4194 ns/op             832 B/op         17 allocs/op
+BenchmarkPossum_Parse2Params             1000000              2121 ns/op             560 B/op          6 allocs/op
+BenchmarkR2router_Parse2Params           1000000              1415 ns/op             432 B/op          5 allocs/op
+BenchmarkRivet_Parse2Params              3000000               457 ns/op              96 B/op          1 allocs/op
+BenchmarkTango_Parse2Params              1000000              1914 ns/op             312 B/op          8 allocs/op
+BenchmarkTigerTonic_Parse2Params          300000              6895 ns/op            1408 B/op         24 allocs/op
+BenchmarkTraffic_Parse2Params             200000              8317 ns/op            2040 B/op         22 allocs/op
+BenchmarkVulcan_Parse2Params             1000000              1274 ns/op              98 B/op          3 allocs/op
+BenchmarkAce_ParseAll                     200000             10401 ns/op             640 B/op         16 allocs/op
+BenchmarkBear_ParseAll                     50000             37743 ns/op            8928 B/op        110 allocs/op
+BenchmarkBeego_ParseAll                    20000             63193 ns/op            9568 B/op        104 allocs/op
+BenchmarkBone_ParseAll                     20000             61767 ns/op           14160 B/op        131 allocs/op
+BenchmarkDenco_ParseAll                   300000              7036 ns/op             928 B/op         16 allocs/op
+BenchmarkEcho_ParseAll                    200000             11824 ns/op             832 B/op         26 allocs/op
+BenchmarkGin_ParseAll                     300000              4199 ns/op               0 B/op          0 allocs/op
+BenchmarkGocraftWeb_ParseAll               30000             51758 ns/op           13728 B/op        181 allocs/op
+BenchmarkGoji_ParseAll                     50000             29614 ns/op            5376 B/op         32 allocs/op
+BenchmarkGojiv2_ParseAll                   20000             68676 ns/op           24464 B/op        199 allocs/op
+BenchmarkGoJsonRest_ParseAll               20000             76135 ns/op           13866 B/op        321 allocs/op
+BenchmarkGoRestful_ParseAll                 5000            389487 ns/op          110928 B/op        600 allocs/op
+BenchmarkGorillaMux_ParseAll               10000            221250 ns/op           24864 B/op        292 allocs/op
+BenchmarkHttpRouter_ParseAll              200000              6444 ns/op             640 B/op         16 allocs/op
+BenchmarkHttpTreeMux_ParseAll              50000             30702 ns/op            5728 B/op         51 allocs/op
+BenchmarkKocha_ParseAll                   200000             13712 ns/op            1112 B/op         54 allocs/op
+BenchmarkLARS_ParseAll                    300000              6925 ns/op               0 B/op          0 allocs/op
+BenchmarkMacaron_ParseAll                  20000             96278 ns/op           24576 B/op        250 allocs/op
+BenchmarkMartini_ParseAll                   5000            271352 ns/op           25072 B/op        253 allocs/op
+BenchmarkPat_ParseAll                      20000             74941 ns/op           17264 B/op        343 allocs/op
+BenchmarkPossum_ParseAll                   50000             39947 ns/op           10816 B/op         78 allocs/op
+BenchmarkR2router_ParseAll                 50000             42479 ns/op            8352 B/op        120 allocs/op
+BenchmarkRivet_ParseAll                   200000              7726 ns/op             912 B/op         16 allocs/op
+BenchmarkTango_ParseAll                    30000             50014 ns/op            7168 B/op        208 allocs/op
+BenchmarkTigerTonic_ParseAll               10000            106550 ns/op           19728 B/op        379 allocs/op
+BenchmarkTraffic_ParseAll                  10000            216037 ns/op           57776 B/op        642 allocs/op
+BenchmarkVulcan_ParseAll                   50000             34379 ns/op            2548 B/op         78 allocs/op
+```

log/vendor/github.com/gin-gonic/gin/CHANGELOG.md

@@ -0,0 +1,213 @@
+# CHANGELOG
+
+### Gin 1.3.0
+
+- [NEW] Add [`func (*Context) QueryMap`](https://godoc.org/github.com/gin-gonic/gin#Context.QueryMap), [`func (*Context) GetQueryMap`](https://godoc.org/github.com/gin-gonic/gin#Context.GetQueryMap), [`func (*Context) PostFormMap`](https://godoc.org/github.com/gin-gonic/gin#Context.PostFormMap) and [`func (*Context) GetPostFormMap`](https://godoc.org/github.com/gin-gonic/gin#Context.GetPostFormMap) to support `type map[string]string` as query string or form parameters, see [#1383](https://github.com/gin-gonic/gin/pull/1383)
+- [NEW] Add [`func (*Context) AsciiJSON`](https://godoc.org/github.com/gin-gonic/gin#Context.AsciiJSON), see [#1358](https://github.com/gin-gonic/gin/pull/1358)
+- [NEW] Add `Pusher()` in [`type ResponseWriter`](https://godoc.org/github.com/gin-gonic/gin#ResponseWriter) for supporting http2 push, see [#1273](https://github.com/gin-gonic/gin/pull/1273)
+- [NEW] Add [`func (*Context) DataFromReader`](https://godoc.org/github.com/gin-gonic/gin#Context.DataFromReader) for serving dynamic data, see [#1304](https://github.com/gin-gonic/gin/pull/1304)
+- [NEW] Add [`func (*Context) ShouldBindBodyWith`](https://godoc.org/github.com/gin-gonic/gin#Context.ShouldBindBodyWith) allowing to call binding multiple times, see [#1341](https://github.com/gin-gonic/gin/pull/1341)
+- [NEW] Support pointers in form binding, see [#1336](https://github.com/gin-gonic/gin/pull/1336)
+- [NEW] Add [`func (*Context) JSONP`](https://godoc.org/github.com/gin-gonic/gin#Context.JSONP), see [#1333](https://github.com/gin-gonic/gin/pull/1333)
+- [NEW] Support default value in form binding, see [#1138](https://github.com/gin-gonic/gin/pull/1138)
+- [NEW] Expose validator engine in [`type StructValidator`](https://godoc.org/github.com/gin-gonic/gin/binding#StructValidator), see [#1277](https://github.com/gin-gonic/gin/pull/1277)
+- [NEW] Add [`func (*Context) ShouldBind`](https://godoc.org/github.com/gin-gonic/gin#Context.ShouldBind), [`func (*Context) ShouldBindQuery`](https://godoc.org/github.com/gin-gonic/gin#Context.ShouldBindQuery) and [`func (*Context) ShouldBindJSON`](https://godoc.org/github.com/gin-gonic/gin#Context.ShouldBindJSON), see [#1047](https://github.com/gin-gonic/gin/pull/1047)
+- [NEW] Add support for `time.Time` location in form binding, see [#1117](https://github.com/gin-gonic/gin/pull/1117)
+- [NEW] Add [`func (*Context) BindQuery`](https://godoc.org/github.com/gin-gonic/gin#Context.BindQuery), see [#1029](https://github.com/gin-gonic/gin/pull/1029)
+- [NEW] Make [jsonite](https://github.com/json-iterator/go) optional with build tags, see [#1026](https://github.com/gin-gonic/gin/pull/1026)
+- [NEW] Show query string in logger, see [#999](https://github.com/gin-gonic/gin/pull/999)
+- [NEW] Add [`func (*Context) SecureJSON`](https://godoc.org/github.com/gin-gonic/gin#Context.SecureJSON), see [#987](https://github.com/gin-gonic/gin/pull/987) and [#993](https://github.com/gin-gonic/gin/pull/993)
+- [DEPRECATE] `func (*Context) GetCookie` for [`func (*Context) Cookie`](https://godoc.org/github.com/gin-gonic/gin#Context.Cookie)
+- [FIX] Don't display color tags if [`func DisableConsoleColor`](https://godoc.org/github.com/gin-gonic/gin#DisableConsoleColor) called, see [#1072](https://github.com/gin-gonic/gin/pull/1072)
+- [FIX] Gin Mode `""` when calling [`func Mode`](https://godoc.org/github.com/gin-gonic/gin#Mode) now returns `const DebugMode`, see [#1250](https://github.com/gin-gonic/gin/pull/1250)
+- [FIX] `Flush()` now doesn't overwrite `responseWriter` status code, see [#1460](https://github.com/gin-gonic/gin/pull/1460)
+
+### Gin 1.2.0
+
+- [NEW] Switch from godeps to govendor
+- [NEW] Add support for Let's Encrypt via gin-gonic/autotls
+- [NEW] Improve README examples and add extra at examples folder
+- [NEW] Improved support with App Engine
+- [NEW] Add custom template delimiters, see #860
+- [NEW] Add Template Func Maps, see #962
+- [NEW] Add \*context.Handler(), see #928
+- [NEW] Add \*context.GetRawData()
+- [NEW] Add \*context.GetHeader() (request)
+- [NEW] Add \*context.AbortWithStatusJSON() (JSON content type)
+- [NEW] Add \*context.Keys type cast helpers
+- [NEW] Add \*context.ShouldBindWith()
+- [NEW] Add \*context.MustBindWith()
+- [NEW] Add \*engine.SetFuncMap()
+- [DEPRECATE] On next release: \*context.BindWith(), see #855
+- [FIX] Refactor render
+- [FIX] Reworked tests
+- [FIX] logger now supports cygwin
+- [FIX] Use X-Forwarded-For before X-Real-Ip
+- [FIX] time.Time binding (#904)
+
+### Gin 1.1.4
+
+- [NEW] Support google appengine for IsTerminal func
+
+### Gin 1.1.3
+
+- [FIX] Reverted Logger: skip ANSI color commands
+
+### Gin 1.1
+
+- [NEW] Implement QueryArray and PostArray methods 
+- [NEW] Refactor GetQuery and GetPostForm 
+- [NEW] Add contribution guide 
+- [FIX] Corrected typos in README
+- [FIX] Removed additional Iota  
+- [FIX] Changed imports to gopkg instead of github in README (#733) 
+- [FIX] Logger: skip ANSI color commands if output is not a tty
+
+### 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()

log/vendor/github.com/gin-gonic/gin/CODE_OF_CONDUCT.md

@@ -0,0 +1,46 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community. Examples of representing a project or community include using an official project e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event. Representation of a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at teamgingonic@gmail.com. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version]
+
+[homepage]: http://contributor-covenant.org
+[version]: http://contributor-covenant.org/version/1/4/

log/vendor/github.com/gin-gonic/gin/CONTRIBUTING.md

@@ -0,0 +1,13 @@
+## Contributing 
+
+- With issues:
+  - Use the search tool before opening a new issue.
+  - Please provide source code and commit sha if you found a bug.
+  - Review existing issues and provide feedback or react to them.
+
+- With pull requests:
+  - Open your pull request against `master`
+  - Your pull request should have no more than two commits, if not you should squash them.
+  - It should pass all tests in the available continuous integrations systems such as TravisCI.
+  - You should add/modify tests to cover your proposed code changes.
+  - If your pull request contains a new feature, please document it on the README.

log/vendor/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.

log/vendor/github.com/gin-gonic/gin/Makefile

@@ -0,0 +1,62 @@
+GOFMT ?= gofmt "-s"
+PACKAGES ?= $(shell go list ./... | grep -v /vendor/)
+VETPACKAGES ?= $(shell go list ./... | grep -v /vendor/ | grep -v /examples/)
+GOFILES := $(shell find . -name "*.go" -type f -not -path "./vendor/*")
+
+all: install
+
+install: deps
+	govendor sync
+
+.PHONY: test
+test:
+	sh coverage.sh
+
+.PHONY: fmt
+fmt:
+	$(GOFMT) -w $(GOFILES)
+
+.PHONY: fmt-check
+fmt-check:
+	# get all go files and run go fmt on them
+	@diff=$$($(GOFMT) -d $(GOFILES)); \
+	if [ -n "$$diff" ]; then \
+		echo "Please run 'make fmt' and commit the result:"; \
+		echo "$${diff}"; \
+		exit 1; \
+	fi;
+
+vet:
+	go vet $(VETPACKAGES)
+
+deps:
+	@hash govendor > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
+		go get -u github.com/kardianos/govendor; \
+	fi
+	@hash embedmd > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
+		go get -u github.com/campoy/embedmd; \
+	fi
+
+embedmd:
+	embedmd -d *.md
+
+.PHONY: lint
+lint:
+	@hash golint > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
+		go get -u github.com/golang/lint/golint; \
+	fi
+	for PKG in $(PACKAGES); do golint -set_exit_status $$PKG || exit 1; done;
+
+.PHONY: misspell-check
+misspell-check:
+	@hash misspell > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
+		go get -u github.com/client9/misspell/cmd/misspell; \
+	fi
+	misspell -error $(GOFILES)
+
+.PHONY: misspell
+misspell:
+	@hash misspell > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
+		go get -u github.com/client9/misspell/cmd/misspell; \
+	fi
+	misspell -w $(GOFILES)

log/vendor/github.com/gin-gonic/gin/auth.go

@@ -0,0 +1,96 @@
+// 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"
+	"net/http"
+	"strconv"
+)
+
+// AuthUserKey is the cookie name for user credential in basic auth.
+const AuthUserKey = "user"
+
+// Accounts defines a key/value for user/pass list of authorized logins.
+type Accounts map[string]string
+
+type authPair struct {
+	value string
+	user  string
+}
+
+type authPairs []authPair
+
+func (a authPairs) searchCredential(authValue string) (string, bool) {
+	if authValue == "" {
+		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.requestHeader("Authorization"))
+		if !found {
+			// Credentials doesn't match, we return 401 and abort handlers chain.
+			c.Header("WWW-Authenticate", realm)
+			c.AbortWithStatus(http.StatusUnauthorized)
+			return
+		}
+
+		// The user credentials was found, set user's id to key AuthUserKey in this context, the user's id 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(user != "", "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
+}

log/vendor/github.com/gin-gonic/gin/binding/binding.go

@@ -0,0 +1,99 @@
+// 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"
+
+// Content-Type MIME of the most common data formats.
+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"
+	MIMEMSGPACK           = "application/x-msgpack"
+	MIMEMSGPACK2          = "application/msgpack"
+)
+
+// Binding describes the interface which needs to be implemented for binding the
+// data present in the request such as JSON request body, query parameters or
+// the form POST.
+type Binding interface {
+	Name() string
+	Bind(*http.Request, interface{}) error
+}
+
+// BindingBody adds BindBody method to Binding. BindBody is similar with Bind,
+// but it reads the body from supplied bytes instead of req.Body.
+type BindingBody interface {
+	Binding
+	BindBody([]byte, interface{}) error
+}
+
+// StructValidator is the minimal interface which needs to be implemented in
+// order for it to be used as the validator engine for ensuring the correctness
+// of the reqest. Gin provides a default implementation for this using
+// https://github.com/go-playground/validator/tree/v8.18.2.
+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
+
+	// Engine returns the underlying validator engine which powers the
+	// StructValidator implementation.
+	Engine() interface{}
+}
+
+// Validator is the default validator which implements the StructValidator
+// interface. It uses https://github.com/go-playground/validator/tree/v8.18.2
+// under the hood.
+var Validator StructValidator = &defaultValidator{}
+
+// These implement the Binding interface and can be used to bind the data
+// present in the request to struct instances.
+var (
+	JSON          = jsonBinding{}
+	XML           = xmlBinding{}
+	Form          = formBinding{}
+	Query         = queryBinding{}
+	FormPost      = formPostBinding{}
+	FormMultipart = formMultipartBinding{}
+	ProtoBuf      = protobufBinding{}
+	MsgPack       = msgpackBinding{}
+)
+
+// Default returns the appropriate Binding instance based on the HTTP method
+// and the content type.
+func Default(method, contentType string) Binding {
+	if method == "GET" {
+		return Form
+	}
+
+	switch contentType {
+	case MIMEJSON:
+		return JSON
+	case MIMEXML, MIMEXML2:
+		return XML
+	case MIMEPROTOBUF:
+		return ProtoBuf
+	case MIMEMSGPACK, MIMEMSGPACK2:
+		return MsgPack
+	default: //case MIMEPOSTForm, MIMEMultipartPOSTForm:
+		return Form
+	}
+}
+
+func validate(obj interface{}) error {
+	if Validator == nil {
+		return nil
+	}
+	return Validator.ValidateStruct(obj)
+}

log/vendor/github.com/gin-gonic/gin/binding/default_validator.go

@@ -0,0 +1,51 @@
+// Copyright 2017 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 (
+	"reflect"
+	"sync"
+
+	"gopkg.in/go-playground/validator.v8"
+)
+
+type defaultValidator struct {
+	once     sync.Once
+	validate *validator.Validate
+}
+
+var _ StructValidator = &defaultValidator{}
+
+// ValidateStruct receives any kind of type, but only performed struct or pointer to struct type.
+func (v *defaultValidator) ValidateStruct(obj interface{}) error {
+	value := reflect.ValueOf(obj)
+	valueType := value.Kind()
+	if valueType == reflect.Ptr {
+		valueType = value.Elem().Kind()
+	}
+	if valueType == reflect.Struct {
+		v.lazyinit()
+		if err := v.validate.Struct(obj); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// Engine returns the underlying validator engine which powers the default
+// Validator instance. This is useful if you want to register custom validations
+// or struct level validations. See validator GoDoc for more info -
+// https://godoc.org/gopkg.in/go-playground/validator.v8
+func (v *defaultValidator) Engine() interface{} {
+	v.lazyinit()
+	return v.validate
+}
+
+func (v *defaultValidator) lazyinit() {
+	v.once.Do(func() {
+		config := &validator.Config{TagName: "binding"}
+		v.validate = validator.New(config)
+	})
+}

log/vendor/github.com/gin-gonic/gin/binding/form.go

@@ -0,0 +1,56 @@
+// 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 defaultMemory = 32 * 1024 * 1024
+
+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(defaultMemory)
+	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(defaultMemory); err != nil {
+		return err
+	}
+	if err := mapForm(obj, req.MultipartForm.Value); err != nil {
+		return err
+	}
+	return validate(obj)
+}

log/vendor/github.com/gin-gonic/gin/binding/form_mapping.go

@@ -0,0 +1,209 @@
+// 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"
+	"strings"
+	"time"
+)
+
+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")
+		inputFieldNameList := strings.Split(inputFieldName, ",")
+		inputFieldName = inputFieldNameList[0]
+		var defaultValue string
+		if len(inputFieldNameList) > 1 {
+			defaultList := strings.SplitN(inputFieldNameList[1], "=", 2)
+			if defaultList[0] == "default" {
+				defaultValue = defaultList[1]
+			}
+		}
+		if inputFieldName == "" {
+			inputFieldName = typeField.Name
+
+			// if "form" tag is nil, we inspect if the field is a struct or struct pointer.
+			// this would not make sense for JSON parsing but it does for a form
+			// since data is flatten
+			if structFieldKind == reflect.Ptr {
+				if !structField.Elem().IsValid() {
+					structField.Set(reflect.New(structField.Type().Elem()))
+				}
+				structField = structField.Elem()
+				structFieldKind = structField.Kind()
+			}
+			if structFieldKind == reflect.Struct {
+				err := mapForm(structField.Addr().Interface(), form)
+				if err != nil {
+					return err
+				}
+				continue
+			}
+		}
+		inputValue, exists := form[inputFieldName]
+
+		if !exists {
+			if defaultValue == "" {
+				continue
+			}
+			inputValue = make([]string, 1)
+			inputValue[0] = defaultValue
+		}
+
+		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 _, isTime := structField.Interface().(time.Time); isTime {
+				if err := setTimeField(inputValue[0], typeField, structField); err != nil {
+					return err
+				}
+				continue
+			}
+			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)
+	case reflect.Ptr:
+		if !structField.Elem().IsValid() {
+			structField.Set(reflect.New(structField.Type().Elem()))
+		}
+		structFieldElem := structField.Elem()
+		return setWithProperType(structFieldElem.Kind(), val, structFieldElem)
+	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 err
+}
+
+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
+}
+
+func setTimeField(val string, structField reflect.StructField, value reflect.Value) error {
+	timeFormat := structField.Tag.Get("time_format")
+	if timeFormat == "" {
+		return errors.New("Blank time format")
+	}
+
+	if val == "" {
+		value.Set(reflect.ValueOf(time.Time{}))
+		return nil
+	}
+
+	l := time.Local
+	if isUTC, _ := strconv.ParseBool(structField.Tag.Get("time_utc")); isUTC {
+		l = time.UTC
+	}
+
+	if locTag := structField.Tag.Get("time_location"); locTag != "" {
+		loc, err := time.LoadLocation(locTag)
+		if err != nil {
+			return err
+		}
+		l = loc
+	}
+
+	t, err := time.ParseInLocation(timeFormat, val, l)
+	if err != nil {
+		return err
+	}
+
+	value.Set(reflect.ValueOf(t))
+	return nil
+}

log/vendor/github.com/gin-gonic/gin/binding/json.go

@@ -0,0 +1,43 @@
+// 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 (
+	"bytes"
+	"io"
+	"net/http"
+
+	"github.com/gin-gonic/gin/json"
+)
+
+// EnableDecoderUseNumber is used to call the UseNumber method on the JSON
+// Decoder instance. UseNumber causes the Decoder to unmarshal a number into an
+// interface{} as a Number instead of as a float64.
+var EnableDecoderUseNumber = false
+
+type jsonBinding struct{}
+
+func (jsonBinding) Name() string {
+	return "json"
+}
+
+func (jsonBinding) Bind(req *http.Request, obj interface{}) error {
+	return decodeJSON(req.Body, obj)
+}
+
+func (jsonBinding) BindBody(body []byte, obj interface{}) error {
+	return decodeJSON(bytes.NewReader(body), obj)
+}
+
+func decodeJSON(r io.Reader, obj interface{}) error {
+	decoder := json.NewDecoder(r)
+	if EnableDecoderUseNumber {
+		decoder.UseNumber()
+	}
+	if err := decoder.Decode(obj); err != nil {
+		return err
+	}
+	return validate(obj)
+}

log/vendor/github.com/gin-gonic/gin/binding/msgpack.go

@@ -0,0 +1,35 @@
+// Copyright 2017 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 (
+	"bytes"
+	"io"
+	"net/http"
+
+	"github.com/ugorji/go/codec"
+)
+
+type msgpackBinding struct{}
+
+func (msgpackBinding) Name() string {
+	return "msgpack"
+}
+
+func (msgpackBinding) Bind(req *http.Request, obj interface{}) error {
+	return decodeMsgPack(req.Body, obj)
+}
+
+func (msgpackBinding) BindBody(body []byte, obj interface{}) error {
+	return decodeMsgPack(bytes.NewReader(body), obj)
+}
+
+func decodeMsgPack(r io.Reader, obj interface{}) error {
+	cdc := new(codec.MsgpackHandle)
+	if err := codec.NewDecoder(r, cdc).Decode(&obj); err != nil {
+		return err
+	}
+	return validate(obj)
+}

log/vendor/github.com/gin-gonic/gin/binding/protobuf.go

@@ -0,0 +1,36 @@
+// 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 (
+	"io/ioutil"
+	"net/http"
+
+	"github.com/golang/protobuf/proto"
+)
+
+type protobufBinding struct{}
+
+func (protobufBinding) Name() string {
+	return "protobuf"
+}
+
+func (b protobufBinding) Bind(req *http.Request, obj interface{}) error {
+	buf, err := ioutil.ReadAll(req.Body)
+	if err != nil {
+		return err
+	}
+	return b.BindBody(buf, obj)
+}
+
+func (protobufBinding) BindBody(body []byte, obj interface{}) error {
+	if err := proto.Unmarshal(body, 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)
+}

log/vendor/github.com/gin-gonic/gin/binding/query.go

@@ -0,0 +1,21 @@
+// Copyright 2017 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 queryBinding struct{}
+
+func (queryBinding) Name() string {
+	return "query"
+}
+
+func (queryBinding) Bind(req *http.Request, obj interface{}) error {
+	values := req.URL.Query()
+	if err := mapForm(obj, values); err != nil {
+		return err
+	}
+	return validate(obj)
+}

log/vendor/github.com/gin-gonic/gin/binding/xml.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 binding
+
+import (
+	"bytes"
+	"encoding/xml"
+	"io"
+	"net/http"
+)
+
+type xmlBinding struct{}
+
+func (xmlBinding) Name() string {
+	return "xml"
+}
+
+func (xmlBinding) Bind(req *http.Request, obj interface{}) error {
+	return decodeXML(req.Body, obj)
+}
+
+func (xmlBinding) BindBody(body []byte, obj interface{}) error {
+	return decodeXML(bytes.NewReader(body), obj)
+}
+func decodeXML(r io.Reader, obj interface{}) error {
+	decoder := xml.NewDecoder(r)
+	if err := decoder.Decode(obj); err != nil {
+		return err
+	}
+	return validate(obj)
+}

log/vendor/github.com/gin-gonic/gin/codecov.yml

@@ -0,0 +1,5 @@
+coverage:
+  notify:
+    gitter:
+      default:
+        url: https://webhooks.gitter.im/e/d90dcdeeab2f1e357165

log/vendor/github.com/gin-gonic/gin/context.go

@@ -0,0 +1,933 @@
+// 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"
+	"io/ioutil"
+	"math"
+	"mime/multipart"
+	"net"
+	"net/http"
+	"net/url"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/gin-contrib/sse"
+	"github.com/gin-gonic/gin/binding"
+	"github.com/gin-gonic/gin/render"
+)
+
+// 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
+	BodyBytesKey          = "_gin-gonic/gin/bodybyteskey"
+)
+
+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 is a key/value pair exclusively for the context of each request.
+	Keys map[string]interface{}
+
+	// Errors is a list of errors attached to all the handlers/middlewares who used this context.
+	Errors errorMsgs
+
+	// Accepted defines a list of manually accepted formats for content negotiation.
+	Accepted []string
+}
+
+/************************************/
+/********** 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 has to be used when the context has to be passed to a goroutine.
+func (c *Context) Copy() *Context {
+	var cp = *c
+	cp.writermem.ResponseWriter = nil
+	cp.Writer = &cp.writermem
+	cp.index = abortIndex
+	cp.handlers = nil
+	return &cp
+}
+
+// HandlerName returns the main handler'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())
+}
+
+// Handler returns the main handler.
+func (c *Context) Handler() HandlerFunc {
+	return 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++
+	for s := int8(len(c.handlers)); c.index < s; c.index++ {
+		c.handlers[c.index](c)
+	}
+}
+
+// IsAborted returns true if the current 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 authenticate a request could use: context.AbortWithStatus(401).
+func (c *Context) AbortWithStatus(code int) {
+	c.Status(code)
+	c.Writer.WriteHeaderNow()
+	c.Abort()
+}
+
+// AbortWithStatusJSON calls `Abort()` and then `JSON` internally.
+// This method stops the chain, writes the status code and return a JSON body.
+// It also sets the Content-Type as "application/json".
+func (c *Context) AbortWithStatusJSON(code int, jsonObj interface{}) {
+	c.Abort()
+	c.JSON(code, jsonObj)
+}
+
+// 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 *********/
+/************************************/
+
+// Error 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.
+// Error will panic if err is nil.
+func (c *Context) Error(err error) *Error {
+	if err == nil {
+		panic("err is nil")
+	}
+
+	parsedError, ok := err.(*Error)
+	if !ok {
+		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 exclusively 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) {
+	value, exists = c.Keys[key]
+	return
+}
+
+// MustGet 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")
+}
+
+// GetString returns the value associated with the key as a string.
+func (c *Context) GetString(key string) (s string) {
+	if val, ok := c.Get(key); ok && val != nil {
+		s, _ = val.(string)
+	}
+	return
+}
+
+// GetBool returns the value associated with the key as a boolean.
+func (c *Context) GetBool(key string) (b bool) {
+	if val, ok := c.Get(key); ok && val != nil {
+		b, _ = val.(bool)
+	}
+	return
+}
+
+// GetInt returns the value associated with the key as an integer.
+func (c *Context) GetInt(key string) (i int) {
+	if val, ok := c.Get(key); ok && val != nil {
+		i, _ = val.(int)
+	}
+	return
+}
+
+// GetInt64 returns the value associated with the key as an integer.
+func (c *Context) GetInt64(key string) (i64 int64) {
+	if val, ok := c.Get(key); ok && val != nil {
+		i64, _ = val.(int64)
+	}
+	return
+}
+
+// GetFloat64 returns the value associated with the key as a float64.
+func (c *Context) GetFloat64(key string) (f64 float64) {
+	if val, ok := c.Get(key); ok && val != nil {
+		f64, _ = val.(float64)
+	}
+	return
+}
+
+// GetTime returns the value associated with the key as time.
+func (c *Context) GetTime(key string) (t time.Time) {
+	if val, ok := c.Get(key); ok && val != nil {
+		t, _ = val.(time.Time)
+	}
+	return
+}
+
+// GetDuration returns the value associated with the key as a duration.
+func (c *Context) GetDuration(key string) (d time.Duration) {
+	if val, ok := c.Get(key); ok && val != nil {
+		d, _ = val.(time.Duration)
+	}
+	return
+}
+
+// GetStringSlice returns the value associated with the key as a slice of strings.
+func (c *Context) GetStringSlice(key string) (ss []string) {
+	if val, ok := c.Get(key); ok && val != nil {
+		ss, _ = val.([]string)
+	}
+	return
+}
+
+// GetStringMap returns the value associated with the key as a map of interfaces.
+func (c *Context) GetStringMap(key string) (sm map[string]interface{}) {
+	if val, ok := c.Get(key); ok && val != nil {
+		sm, _ = val.(map[string]interface{})
+	}
+	return
+}
+
+// GetStringMapString returns the value associated with the key as a map of strings.
+func (c *Context) GetStringMapString(key string) (sms map[string]string) {
+	if val, ok := c.Get(key); ok && val != nil {
+		sms, _ = val.(map[string]string)
+	}
+	return
+}
+
+// GetStringMapStringSlice returns the value associated with the key as a map to a slice of strings.
+func (c *Context) GetStringMapStringSlice(key string) (smss map[string][]string) {
+	if val, ok := c.Get(key); ok && val != nil {
+		smss, _ = val.(map[string][]string)
+	}
+	return
+}
+
+/************************************/
+/************ 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,
+// otherwise 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,
+// otherwise 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),
+// otherwise 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) {
+	if values, ok := c.GetQueryArray(key); ok {
+		return values[0], ok
+	}
+	return "", false
+}
+
+// QueryArray returns a slice of strings for a given query key.
+// The length of the slice depends on the number of params with the given key.
+func (c *Context) QueryArray(key string) []string {
+	values, _ := c.GetQueryArray(key)
+	return values
+}
+
+// GetQueryArray returns a slice of strings for a given query key, plus
+// a boolean value whether at least one value exists for the given key.
+func (c *Context) GetQueryArray(key string) ([]string, bool) {
+	if values, ok := c.Request.URL.Query()[key]; ok && len(values) > 0 {
+		return values, true
+	}
+	return []string{}, false
+}
+
+// QueryMap returns a map for a given query key.
+func (c *Context) QueryMap(key string) map[string]string {
+	dicts, _ := c.GetQueryMap(key)
+	return dicts
+}
+
+// GetQueryMap returns a map for a given query key, plus a boolean value
+// whether at least one value exists for the given key.
+func (c *Context) GetQueryMap(key string) (map[string]string, bool) {
+	return c.get(c.Request.URL.Query(), key)
+}
+
+// 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
+}
+
+// DefaultPostForm 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) {
+	if values, ok := c.GetPostFormArray(key); ok {
+		return values[0], ok
+	}
+	return "", false
+}
+
+// PostFormArray returns a slice of strings for a given form key.
+// The length of the slice depends on the number of params with the given key.
+func (c *Context) PostFormArray(key string) []string {
+	values, _ := c.GetPostFormArray(key)
+	return values
+}
+
+// GetPostFormArray returns a slice of strings for a given form key, plus
+// a boolean value whether at least one value exists for the given key.
+func (c *Context) GetPostFormArray(key string) ([]string, bool) {
+	req := c.Request
+	req.ParseForm()
+	req.ParseMultipartForm(c.engine.MaxMultipartMemory)
+	if values := req.PostForm[key]; len(values) > 0 {
+		return values, true
+	}
+	if req.MultipartForm != nil && req.MultipartForm.File != nil {
+		if values := req.MultipartForm.Value[key]; len(values) > 0 {
+			return values, true
+		}
+	}
+	return []string{}, false
+}
+
+// PostFormMap returns a map for a given form key.
+func (c *Context) PostFormMap(key string) map[string]string {
+	dicts, _ := c.GetPostFormMap(key)
+	return dicts
+}
+
+// GetPostFormMap returns a map for a given form key, plus a boolean value
+// whether at least one value exists for the given key.
+func (c *Context) GetPostFormMap(key string) (map[string]string, bool) {
+	req := c.Request
+	req.ParseForm()
+	req.ParseMultipartForm(c.engine.MaxMultipartMemory)
+	dicts, exist := c.get(req.PostForm, key)
+
+	if !exist && req.MultipartForm != nil && req.MultipartForm.File != nil {
+		dicts, exist = c.get(req.MultipartForm.Value, key)
+	}
+
+	return dicts, exist
+}
+
+// get is an internal method and returns a map which satisfy conditions.
+func (c *Context) get(m map[string][]string, key string) (map[string]string, bool) {
+	dicts := make(map[string]string)
+	exist := false
+	for k, v := range m {
+		if i := strings.IndexByte(k, '['); i >= 1 && k[0:i] == key {
+			if j := strings.IndexByte(k[i+1:], ']'); j >= 1 {
+				exist = true
+				dicts[k[i+1:][:j]] = v[0]
+			}
+		}
+	}
+	return dicts, exist
+}
+
+// FormFile returns the first file for the provided form key.
+func (c *Context) FormFile(name string) (*multipart.FileHeader, error) {
+	_, fh, err := c.Request.FormFile(name)
+	return fh, err
+}
+
+// MultipartForm is the parsed multipart form, including file uploads.
+func (c *Context) MultipartForm() (*multipart.Form, error) {
+	err := c.Request.ParseMultipartForm(c.engine.MaxMultipartMemory)
+	return c.Request.MultipartForm, err
+}
+
+// SaveUploadedFile uploads the form file to specific dst.
+func (c *Context) SaveUploadedFile(file *multipart.FileHeader, dst string) error {
+	src, err := file.Open()
+	if err != nil {
+		return err
+	}
+	defer src.Close()
+
+	out, err := os.Create(dst)
+	if err != nil {
+		return err
+	}
+	defer out.Close()
+
+	io.Copy(out, src)
+	return nil
+}
+
+// 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.
+// It 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.
+// It writes a 400 error and sets Content-Type header "text/plain" in the response if input is not valid.
+func (c *Context) Bind(obj interface{}) error {
+	b := binding.Default(c.Request.Method, c.ContentType())
+	return c.MustBindWith(obj, b)
+}
+
+// BindJSON is a shortcut for c.MustBindWith(obj, binding.JSON).
+func (c *Context) BindJSON(obj interface{}) error {
+	return c.MustBindWith(obj, binding.JSON)
+}
+
+// BindQuery is a shortcut for c.MustBindWith(obj, binding.Query).
+func (c *Context) BindQuery(obj interface{}) error {
+	return c.MustBindWith(obj, binding.Query)
+}
+
+// MustBindWith binds the passed struct pointer using the specified binding engine.
+// It will abort the request with HTTP 400 if any error ocurrs.
+// See the binding package.
+func (c *Context) MustBindWith(obj interface{}, b binding.Binding) (err error) {
+	if err = c.ShouldBindWith(obj, b); err != nil {
+		c.AbortWithError(http.StatusBadRequest, err).SetType(ErrorTypeBind)
+	}
+
+	return
+}
+
+// ShouldBind 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
+// It 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 c.Bind() but this method does not set the response status code to 400 and abort if the json is not valid.
+func (c *Context) ShouldBind(obj interface{}) error {
+	b := binding.Default(c.Request.Method, c.ContentType())
+	return c.ShouldBindWith(obj, b)
+}
+
+// ShouldBindJSON is a shortcut for c.ShouldBindWith(obj, binding.JSON).
+func (c *Context) ShouldBindJSON(obj interface{}) error {
+	return c.ShouldBindWith(obj, binding.JSON)
+}
+
+// ShouldBindQuery is a shortcut for c.ShouldBindWith(obj, binding.Query).
+func (c *Context) ShouldBindQuery(obj interface{}) error {
+	return c.ShouldBindWith(obj, binding.Query)
+}
+
+// ShouldBindWith binds the passed struct pointer using the specified binding engine.
+// See the binding package.
+func (c *Context) ShouldBindWith(obj interface{}, b binding.Binding) error {
+	return b.Bind(c.Request, obj)
+}
+
+// ShouldBindBodyWith is similar with ShouldBindWith, but it stores the request
+// body into the context, and reuse when it is called again.
+//
+// NOTE: This method reads the body before binding. So you should use
+// ShouldBindWith for better performance if you need to call only once.
+func (c *Context) ShouldBindBodyWith(
+	obj interface{}, bb binding.BindingBody,
+) (err error) {
+	var body []byte
+	if cb, ok := c.Get(BodyBytesKey); ok {
+		if cbb, ok := cb.([]byte); ok {
+			body = cbb
+		}
+	}
+	if body == nil {
+		body, err = ioutil.ReadAll(c.Request.Body)
+		if err != nil {
+			return err
+		}
+		c.Set(BodyBytesKey, body)
+	}
+	return bb.BindBody(body, obj)
+}
+
+// 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.
+// Use X-Forwarded-For before X-Real-Ip as nginx uses X-Real-Ip with the proxy's IP.
+func (c *Context) ClientIP() string {
+	if c.engine.ForwardedByClientIP {
+		clientIP := c.requestHeader("X-Forwarded-For")
+		clientIP = strings.TrimSpace(strings.Split(clientIP, ",")[0])
+		if clientIP == "" {
+			clientIP = strings.TrimSpace(c.requestHeader("X-Real-Ip"))
+		}
+		if clientIP != "" {
+			return clientIP
+		}
+	}
+
+	if c.engine.AppEngine {
+		if addr := c.requestHeader("X-Appengine-Remote-Addr"); addr != "" {
+			return addr
+		}
+	}
+
+	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"))
+}
+
+// IsWebsocket returns true if the request headers indicate that a websocket
+// handshake is being initiated by the client.
+func (c *Context) IsWebsocket() bool {
+	if strings.Contains(strings.ToLower(c.requestHeader("Connection")), "upgrade") &&
+		strings.ToLower(c.requestHeader("Upgrade")) == "websocket" {
+		return true
+	}
+	return false
+}
+
+func (c *Context) requestHeader(key string) string {
+	return c.Request.Header.Get(key)
+}
+
+/************************************/
+/******** RESPONSE RENDERING ********/
+/************************************/
+
+// bodyAllowedForStatus is a copy of http.bodyAllowedForStatus non-exported function.
+func bodyAllowedForStatus(status int) bool {
+	switch {
+	case status >= 100 && status <= 199:
+		return false
+	case status == http.StatusNoContent:
+		return false
+	case status == http.StatusNotModified:
+		return false
+	}
+	return true
+}
+
+// Status sets the HTTP response code.
+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 value == "" {
+		c.Writer.Header().Del(key)
+	} else {
+		c.Writer.Header().Set(key, value)
+	}
+}
+
+// GetHeader returns value from request headers.
+func (c *Context) GetHeader(key string) string {
+	return c.requestHeader(key)
+}
+
+// GetRawData return stream data.
+func (c *Context) GetRawData() ([]byte, error) {
+	return ioutil.ReadAll(c.Request.Body)
+}
+
+// SetCookie adds a Set-Cookie header to the ResponseWriter's headers.
+// The provided cookie must have a valid Name. Invalid cookies may be
+// silently dropped.
+func (c *Context) SetCookie(name, value string, maxAge int, path, domain string, secure, 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,
+	})
+}
+
+// Cookie returns the named cookie provided in the request or
+// ErrNoCookie if not found. And return the named cookie is unescaped.
+// If multiple cookies match the given name, only one cookie will
+// be returned.
+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 !bodyAllowedForStatus(code) {
+		r.WriteContentType(c.Writer)
+		c.Writer.WriteHeaderNow()
+		return
+	}
+
+	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 purposes 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})
+}
+
+// SecureJSON serializes the given struct as Secure JSON into the response body.
+// Default prepends "while(1)," to response body if the given struct is array values.
+// It also sets the Content-Type as "application/json".
+func (c *Context) SecureJSON(code int, obj interface{}) {
+	c.Render(code, render.SecureJSON{Prefix: c.engine.secureJsonPrefix, Data: obj})
+}
+
+// JSONP serializes the given struct as JSON into the response body.
+// It add padding to response body to request data from a server residing in a different domain than the client.
+// It also sets the Content-Type as "application/javascript".
+func (c *Context) JSONP(code int, obj interface{}) {
+	callback := c.DefaultQuery("callback", "")
+	if callback == "" {
+		c.Render(code, render.JSON{Data: obj})
+	} else {
+		c.Render(code, render.JsonpJSON{Callback: callback, 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.Render(code, render.JSON{Data: obj})
+}
+
+// AsciiJSON serializes the given struct as JSON into the response body with unicode to ASCII string.
+// It also sets the Content-Type as "application/json".
+func (c *Context) AsciiJSON(code int, obj interface{}) {
+	c.Render(code, render.AsciiJSON{Data: obj})
+}
+
+// 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})
+}
+
+// YAML serializes the given struct as YAML into the response body.
+func (c *Context) YAML(code int, obj interface{}) {
+	c.Render(code, render.YAML{Data: obj})
+}
+
+// String writes the given string into the response body.
+func (c *Context) String(code int, format string, values ...interface{}) {
+	c.Render(code, render.String{Format: format, Data: 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,
+	})
+}
+
+// DataFromReader writes the specified reader into the body stream and updates the HTTP code.
+func (c *Context) DataFromReader(code int, contentLength int64, contentType string, reader io.Reader, extraHeaders map[string]string) {
+	c.Render(code, render.Reader{
+		Headers:       extraHeaders,
+		ContentType:   contentType,
+		ContentLength: contentLength,
+		Reader:        reader,
+	})
+}
+
+// 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 *****/
+/************************************/
+
+// Deadline returns the time when work done on behalf of this context
+// should be canceled. Deadline returns ok==false when no deadline is
+// set. Successive calls to Deadline return the same results.
+func (c *Context) Deadline() (deadline time.Time, ok bool) {
+	return
+}
+
+// Done returns a channel that's closed when work done on behalf of this
+// context should be canceled. Done may return nil if this context can
+// never be canceled. Successive calls to Done return the same value.
+func (c *Context) Done() <-chan struct{} {
+	return nil
+}
+
+// Err returns a non-nil error value after Done is closed,
+// successive calls to Err return the same error.
+// If Done is not yet closed, Err returns nil.
+// If Done is closed, Err returns a non-nil error explaining why:
+// Canceled if the context was canceled
+// or DeadlineExceeded if the context's deadline passed.
+func (c *Context) Err() error {
+	return nil
+}
+
+// Value returns the value associated with this context for key, or nil
+// if no value is associated with key. Successive calls to Value with
+// the same key returns the same result.
+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
+}

log/vendor/github.com/gin-gonic/gin/context_appengine.go

@@ -0,0 +1,11 @@
+// +build appengine
+
+// Copyright 2017 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
+
+func init() {
+	defaultAppEngine = true
+}

log/vendor/github.com/gin-gonic/gin/coverage.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+set -e
+
+echo "mode: count" > coverage.out
+
+for d in $(go list ./... | grep -E 'gin$|binding$|render$' | grep -v 'examples'); do
+    go test -v -covermode=count -coverprofile=profile.out $d
+    if [ -f profile.out ]; then
+        cat profile.out | grep -v "mode:" >> coverage.out
+        rm profile.out
+    fi
+done

log/vendor/github.com/gin-gonic/gin/debug.go

@@ -0,0 +1,80 @@
+// 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.ReleaseMode) to disable 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 debugPrintWARNINGDefault() {
+	debugPrint(`[WARNING] Now Gin requires Go 1.6 or later and Go 1.7 will be required soon.
+
+`)
+	debugPrint(`[WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.
+
+`)
+}
+
+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)
+	}
+}

log/vendor/github.com/gin-gonic/gin/deprecated.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 gin
+
+import (
+	"log"
+
+	"github.com/gin-gonic/gin/binding"
+)
+
+// 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 {
+	log.Println(`BindWith(\"interface{}, binding.Binding\") error is going to
+	be deprecated, please check issue #662 and either use MustBindWith() if you
+	want HTTP 400 to be automatically returned if any error occur, or use
+	ShouldBindWith() if you need to manage the error.`)
+	return c.MustBindWith(obj, b)
+}

log/vendor/github.com/gin-gonic/gin/doc.go

@@ -0,0 +1,6 @@
+/*
+Package gin implements a HTTP web framework called gin.
+
+See https://gin-gonic.github.io/gin/ for more information about gin.
+*/
+package gin // import "github.com/gin-gonic/gin"

log/vendor/github.com/gin-gonic/gin/errors.go

@@ -0,0 +1,157 @@
+// 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"
+	"reflect"
+
+	"github.com/gin-gonic/gin/json"
+)
+
+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{}
+}
+
+type 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
+}
+
+// MarshalJSON implements the json.Marshaller interface.
+func (msg *Error) MarshalJSON() ([]byte, error) {
+	return json.Marshal(msg.JSON())
+}
+
+// Error 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
+}
+
+// ByType returns a readonly copy filtered 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
+	for _, msg := range a {
+		if msg.IsType(typ) {
+			result = append(result, msg)
+		}
+	}
+	return result
+}
+
+// Last 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 {
+	if length := len(a); length > 0 {
+		return a[length-1]
+	}
+	return nil
+}
+
+// Errors 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()
+}

log/vendor/github.com/gin-gonic/gin/fs.go

@@ -0,0 +1,45 @@
+// Copyright 2017 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"
+	"os"
+)
+
+type onlyfilesFS struct {
+	fs http.FileSystem
+}
+
+type neuteredReaddirFile struct {
+	http.File
+}
+
+// Dir returns a http.Filesystem that can be used by http.FileServer(). It is used internally
+// 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}
+}
+
+// Open 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
+}
+
+// Readdir overrides the http.File default implementation.
+func (f neuteredReaddirFile) Readdir(count int) ([]os.FileInfo, error) {
+	// this disables directory listing
+	return nil, nil
+}

log/vendor/github.com/gin-gonic/gin/gin.go

@@ -0,0 +1,443 @@
+// 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"
+)
+
+const (
+	// Version is Framework's version.
+	Version                = "v1.3.0"
+	defaultMultipartMemory = 32 << 20 // 32 MB
+)
+
+var (
+	default404Body   = []byte("404 page not found")
+	default405Body   = []byte("405 method not allowed")
+	defaultAppEngine bool
+)
+
+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 {
+	if length := len(c); length > 0 {
+		return c[length-1]
+	}
+	return nil
+}
+
+type RouteInfo struct {
+	Method  string
+	Path    string
+	Handler string
+}
+
+type RoutesInfo []RouteInfo
+
+// Engine is the framework's instance, it contains the muxer, middleware and configuration settings.
+// Create an instance of Engine, by using New() or Default()
+type Engine struct {
+	RouterGroup
+
+	// 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
+
+	// #726 #755 If enabled, it will thrust some headers starting with
+	// 'X-AppEngine...' for better integration with that PaaS.
+	AppEngine bool
+
+	// If enabled, the url.RawPath will be used to find parameters.
+	UseRawPath bool
+
+	// If true, the path value will be unescaped.
+	// If UseRawPath is false (by default), the UnescapePathValues effectively is true,
+	// as url.Path gonna be used, which is already unescaped.
+	UnescapePathValues bool
+
+	// Value of 'maxMemory' param that is given to http.Request's ParseMultipartForm
+	// method call.
+	MaxMultipartMemory int64
+
+	delims           render.Delims
+	secureJsonPrefix string
+	HTMLRender       render.HTMLRender
+	FuncMap          template.FuncMap
+	allNoRoute       HandlersChain
+	allNoMethod      HandlersChain
+	noRoute          HandlersChain
+	noMethod         HandlersChain
+	pool             sync.Pool
+	trees            methodTrees
+}
+
+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
+// - UseRawPath:             false
+// - UnescapePathValues:     true
+func New() *Engine {
+	debugPrintWARNINGNew()
+	engine := &Engine{
+		RouterGroup: RouterGroup{
+			Handlers: nil,
+			basePath: "/",
+			root:     true,
+		},
+		FuncMap:                template.FuncMap{},
+		RedirectTrailingSlash:  true,
+		RedirectFixedPath:      false,
+		HandleMethodNotAllowed: false,
+		ForwardedByClientIP:    true,
+		AppEngine:              defaultAppEngine,
+		UseRawPath:             false,
+		UnescapePathValues:     true,
+		MaxMultipartMemory:     defaultMultipartMemory,
+		trees:                  make(methodTrees, 0, 9),
+		delims:                 render.Delims{Left: "{{", Right: "}}"},
+		secureJsonPrefix:       "while(1);",
+	}
+	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 {
+	debugPrintWARNINGDefault()
+	engine := New()
+	engine.Use(Logger(), Recovery())
+	return engine
+}
+
+func (engine *Engine) allocateContext() *Context {
+	return &Context{engine: engine}
+}
+
+func (engine *Engine) Delims(left, right string) *Engine {
+	engine.delims = render.Delims{Left: left, Right: right}
+	return engine
+}
+
+// SecureJsonPrefix sets the secureJsonPrefix used in Context.SecureJSON.
+func (engine *Engine) SecureJsonPrefix(prefix string) *Engine {
+	engine.secureJsonPrefix = prefix
+	return engine
+}
+
+// LoadHTMLGlob loads HTML files identified by glob pattern
+// and associates the result with HTML renderer.
+func (engine *Engine) LoadHTMLGlob(pattern string) {
+	left := engine.delims.Left
+	right := engine.delims.Right
+	templ := template.Must(template.New("").Delims(left, right).Funcs(engine.FuncMap).ParseGlob(pattern))
+
+	if IsDebugging() {
+		debugPrintLoadTemplate(templ)
+		engine.HTMLRender = render.HTMLDebug{Glob: pattern, FuncMap: engine.FuncMap, Delims: engine.delims}
+		return
+	}
+
+	engine.SetHTMLTemplate(templ)
+}
+
+// LoadHTMLFiles loads a slice of HTML files
+// and associates the result with HTML renderer.
+func (engine *Engine) LoadHTMLFiles(files ...string) {
+	if IsDebugging() {
+		engine.HTMLRender = render.HTMLDebug{Files: files, FuncMap: engine.FuncMap, Delims: engine.delims}
+		return
+	}
+
+	templ := template.Must(template.New("").Delims(engine.delims.Left, engine.delims.Right).Funcs(engine.FuncMap).ParseFiles(files...))
+	engine.SetHTMLTemplate(templ)
+}
+
+// SetHTMLTemplate associate a template with HTML renderer.
+func (engine *Engine) SetHTMLTemplate(templ *template.Template) {
+	if len(engine.trees) > 0 {
+		debugPrintWARNINGSetHTMLTemplate()
+	}
+
+	engine.HTMLRender = render.HTMLProduction{Template: templ.Funcs(engine.FuncMap)}
+}
+
+// SetFuncMap sets the FuncMap used for template.FuncMap.
+func (engine *Engine) SetFuncMap(funcMap template.FuncMap) {
+	engine.FuncMap = funcMap
+}
+
+// NoRoute adds handlers for NoRoute. It return a 404 code by default.
+func (engine *Engine) NoRoute(handlers ...HandlerFunc) {
+	engine.noRoute = handlers
+	engine.rebuild404Handlers()
+}
+
+// NoMethod sets the handlers called when... TODO.
+func (engine *Engine) NoMethod(handlers ...HandlerFunc) {
+	engine.noMethod = handlers
+	engine.rebuild405Handlers()
+}
+
+// Use 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(method != "", "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, certFile, 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
+}
+
+// ServeHTTP 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)
+}
+
+// HandleContext re-enter a context that has been rewritten.
+// This can be done by setting c.Request.URL.Path to your new target.
+// Disclaimer: You can loop yourself to death with this, use wisely.
+func (engine *Engine) HandleContext(c *Context) {
+	c.reset()
+	engine.handleHTTPRequest(c)
+	engine.pool.Put(c)
+}
+
+func (engine *Engine) handleHTTPRequest(c *Context) {
+	httpMethod := c.Request.Method
+	path := c.Request.URL.Path
+	unescape := false
+	if engine.UseRawPath && len(c.Request.URL.RawPath) > 0 {
+		path = c.Request.URL.RawPath
+		unescape = engine.UnescapePathValues
+	}
+
+	// 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 {
+			continue
+		}
+		root := t[i].root
+		// Find route in tree
+		handlers, params, tsr := root.getValue(path, c.Params, unescape)
+		if handlers != nil {
+			c.handlers = handlers
+			c.Params = params
+			c.Next()
+			c.writermem.WriteHeaderNow()
+			return
+		}
+		if httpMethod != "CONNECT" && path != "/" {
+			if tsr && engine.RedirectTrailingSlash {
+				redirectTrailingSlash(c)
+				return
+			}
+			if engine.RedirectFixedPath && redirectFixedPath(c, root, engine.RedirectFixedPath) {
+				return
+			}
+		}
+		break
+	}
+
+	if engine.HandleMethodNotAllowed {
+		for _, tree := range engine.trees {
+			if tree.method == httpMethod {
+				continue
+			}
+			if handlers, _, _ := tree.root.getValue(path, nil, unescape); handlers != nil {
+				c.handlers = engine.allNoMethod
+				serveError(c, http.StatusMethodNotAllowed, default405Body)
+				return
+			}
+		}
+	}
+	c.handlers = engine.allNoRoute
+	serveError(c, http.StatusNotFound, default404Body)
+}
+
+var mimePlain = []string{MIMEPlain}
+
+func serveError(c *Context, code int, defaultMessage []byte) {
+	c.writermem.status = code
+	c.Next()
+	if c.writermem.Written() {
+		return
+	}
+	if c.writermem.Status() == code {
+		c.writermem.Header()["Content-Type"] = mimePlain
+		c.Writer.Write(defaultMessage)
+		return
+	}
+	c.writermem.WriteHeaderNow()
+	return
+}
+
+func redirectTrailingSlash(c *Context) {
+	req := c.Request
+	path := req.URL.Path
+	code := http.StatusMovedPermanently // Permanent redirect, request with GET method
+	if req.Method != "GET" {
+		code = http.StatusTemporaryRedirect
+	}
+
+	req.URL.Path = path + "/"
+	if length := len(path); length > 1 && path[length-1] == '/' {
+		req.URL.Path = path[:length-1]
+	}
+	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
+
+	if fixedPath, ok := root.findCaseInsensitivePath(cleanPath(path), trailingSlash); ok {
+		code := http.StatusMovedPermanently // Permanent redirect, request with GET method
+		if req.Method != "GET" {
+			code = http.StatusTemporaryRedirect
+		}
+		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
+}

log/vendor/github.com/gin-gonic/gin/json/json.go

@@ -0,0 +1,15 @@
+// Copyright 2017 Bo-Yi Wu.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
+// +build !jsoniter
+
+package json
+
+import "encoding/json"
+
+var (
+	Marshal       = json.Marshal
+	MarshalIndent = json.MarshalIndent
+	NewDecoder    = json.NewDecoder
+)

log/vendor/github.com/gin-gonic/gin/json/jsoniter.go

@@ -0,0 +1,16 @@
+// Copyright 2017 Bo-Yi Wu.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
+// +build jsoniter
+
+package json
+
+import "github.com/json-iterator/go"
+
+var (
+	json          = jsoniter.ConfigCompatibleWithStandardLibrary
+	Marshal       = json.Marshal
+	MarshalIndent = json.MarshalIndent
+	NewDecoder    = json.NewDecoder
+)

log/vendor/github.com/gin-gonic/gin/logger.go

@@ -0,0 +1,152 @@
+// 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"
+	"net/http"
+	"os"
+	"time"
+
+	"github.com/mattn/go-isatty"
+)
+
+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})
+	disableColor = false
+)
+
+// DisableConsoleColor disables color output in the console.
+func DisableConsoleColor() {
+	disableColor = true
+}
+
+// ErrorLogger returns a handlerfunc for any error type.
+func ErrorLogger() HandlerFunc {
+	return ErrorLoggerT(ErrorTypeAny)
+}
+
+// ErrorLoggerT returns a handlerfunc for a given error type.
+func ErrorLoggerT(typ ErrorType) HandlerFunc {
+	return func(c *Context) {
+		c.Next()
+		errors := c.Errors.ByType(typ)
+		if len(errors) > 0 {
+			c.JSON(-1, errors)
+		}
+	}
+}
+
+// Logger instances a Logger middleware that will write the logs to gin.DefaultWriter.
+// By default gin.DefaultWriter = os.Stdout.
+func Logger() HandlerFunc {
+	return LoggerWithWriter(DefaultWriter)
+}
+
+// LoggerWithWriter 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 {
+	isTerm := true
+
+	if w, ok := out.(*os.File); !ok ||
+		(os.Getenv("TERM") == "dumb" || (!isatty.IsTerminal(w.Fd()) && !isatty.IsCygwinTerminal(w.Fd()))) ||
+		disableColor {
+		isTerm = false
+	}
+
+	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
+		raw := c.Request.URL.RawQuery
+
+		// 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()
+			var statusColor, methodColor, resetColor string
+			if isTerm {
+				statusColor = colorForStatus(statusCode)
+				methodColor = colorForMethod(method)
+				resetColor = reset
+			}
+			comment := c.Errors.ByType(ErrorTypePrivate).String()
+
+			if raw != "" {
+				path = path + "?" + raw
+			}
+
+			fmt.Fprintf(out, "[GIN] %v |%s %3d %s| %13v | %15s |%s %-7s %s %s\n%s",
+				end.Format("2006/01/02 - 15:04:05"),
+				statusColor, statusCode, resetColor,
+				latency,
+				clientIP,
+				methodColor, method, resetColor,
+				path,
+				comment,
+			)
+		}
+	}
+}
+
+func colorForStatus(code int) string {
+	switch {
+	case code >= http.StatusOK && code < http.StatusMultipleChoices:
+		return green
+	case code >= http.StatusMultipleChoices && code < http.StatusBadRequest:
+		return white
+	case code >= http.StatusBadRequest && code < http.StatusInternalServerError:
+		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
+	}
+}

log/vendor/github.com/gin-gonic/gin/mode.go

@@ -0,0 +1,72 @@
+// 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 (
+	"io"
+	"os"
+
+	"github.com/gin-gonic/gin/binding"
+)
+
+const ENV_GIN_MODE = "GIN_MODE"
+
+const (
+	DebugMode   = "debug"
+	ReleaseMode = "release"
+	TestMode    = "test"
+)
+const (
+	debugCode = iota
+	releaseCode
+	testCode
+)
+
+// DefaultWriter is the default io.Writer used the Gin for debug output and
+// middleware output like Logger() or Recovery().
+// Note that both Logger and Recovery provides custom ways to configure their
+// output io.Writer.
+// To support coloring in Windows use:
+// 		import "github.com/mattn/go-colorable"
+// 		gin.DefaultWriter = colorable.NewColorableStdout()
+var DefaultWriter io.Writer = os.Stdout
+var DefaultErrorWriter io.Writer = os.Stderr
+
+var ginMode = debugCode
+var modeName = DebugMode
+
+func init() {
+	mode := os.Getenv(ENV_GIN_MODE)
+	SetMode(mode)
+}
+
+func SetMode(value string) {
+	switch value {
+	case DebugMode, "":
+		ginMode = debugCode
+	case ReleaseMode:
+		ginMode = releaseCode
+	case TestMode:
+		ginMode = testCode
+	default:
+		panic("gin mode unknown: " + value)
+	}
+	if value == "" {
+		value = DebugMode
+	}
+	modeName = value
+}
+
+func DisableBindValidation() {
+	binding.Validator = nil
+}
+
+func EnableJsonDecoderUseNumber() {
+	binding.EnableDecoderUseNumber = true
+}
+
+func Mode() string {
+	return modeName
+}

log/vendor/github.com/gin-gonic/gin/path.go

@@ -0,0 +1,123 @@
+// Copyright 2013 Julien Schmidt. All rights reserved.
+// Based on the path package, Copyright 2009 The Go Authors.
+// Use of this source code is governed by a BSD-style license that can be found
+// at https://github.com/julienschmidt/httprouter/blob/master/LICENSE.
+
+package gin
+
+// cleanPath is the URL version of path.Clean, it returns a canonical URL path
+// for p, eliminating . and .. elements.
+//
+// The following rules are applied iteratively until no further processing can
+// be done:
+//	1. Replace multiple slashes with a single slash.
+//	2. Eliminate each . path name element (the current directory).
+//	3. Eliminate each inner .. path name element (the parent directory)
+//	   along with the non-.. element that precedes it.
+//	4. Eliminate .. elements that begin a rooted path:
+//	   that is, replace "/.." by "/" at the beginning of a path.
+//
+// If the result of this process is an empty string, "/" is returned.
+func cleanPath(p string) string {
+	// Turn empty string into "/"
+	if p == "" {
+		return "/"
+	}
+
+	n := len(p)
+	var buf []byte
+
+	// Invariants:
+	//      reading from path; r is index of next byte to process.
+	//      writing to buf; w is index of next byte to write.
+
+	// path must start with '/'
+	r := 1
+	w := 1
+
+	if p[0] != '/' {
+		r = 0
+		buf = make([]byte, n+1)
+		buf[0] = '/'
+	}
+
+	trailing := n > 1 && p[n-1] == '/'
+
+	// A bit more clunky without a 'lazybuf' like the path package, but the loop
+	// gets completely inlined (bufApp). 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 += 2
+
+		case p[r] == '.' && p[r+1] == '.' && (r+2 == n || p[r+2] == '/'):
+			// .. element: remove to last /
+			r += 3
+
+			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
+}

log/vendor/github.com/gin-gonic/gin/recovery.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 (
+	"bytes"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/http/httputil"
+	"runtime"
+	"time"
+)
+
+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)
+}
+
+// RecoveryWithWriter returns a middleware for a given writer that recovers from any panics and writes a 500 if there was one.
+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] %s panic recovered:\n%s\n%s\n%s%s", timeFormat(time.Now()), string(httprequest), err, stack, reset)
+				}
+				c.AbortWithStatus(http.StatusInternalServerError)
+			}
+		}()
+		c.Next()
+	}
+}
+
+// stack returns a nicely formatted 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
+}
+
+func timeFormat(t time.Time) string {
+	var timeString = t.Format("2006/01/02 - 15:04:05")
+	return timeString
+}

log/vendor/github.com/gin-gonic/gin/render/data.go

@@ -0,0 +1,23 @@
+// 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
+}
+
+// Render (Data) writes data with custom ContentType.
+func (r Data) Render(w http.ResponseWriter) (err error) {
+	r.WriteContentType(w)
+	_, err = w.Write(r.Data)
+	return
+}
+
+func (r Data) WriteContentType(w http.ResponseWriter) {
+	writeContentType(w, []string{r.ContentType})
+}

log/vendor/github.com/gin-gonic/gin/render/html.go

@@ -0,0 +1,80 @@
+// 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 Delims struct {
+	Left  string
+	Right string
+}
+
+type HTMLRender interface {
+	Instance(string, interface{}) Render
+}
+
+type HTMLProduction struct {
+	Template *template.Template
+	Delims   Delims
+}
+
+type HTMLDebug struct {
+	Files   []string
+	Glob    string
+	Delims  Delims
+	FuncMap template.FuncMap
+}
+
+type 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 r.FuncMap == nil {
+		r.FuncMap = template.FuncMap{}
+	}
+	if len(r.Files) > 0 {
+		return template.Must(template.New("").Delims(r.Delims.Left, r.Delims.Right).Funcs(r.FuncMap).ParseFiles(r.Files...))
+	}
+	if r.Glob != "" {
+		return template.Must(template.New("").Delims(r.Delims.Left, r.Delims.Right).Funcs(r.FuncMap).ParseGlob(r.Glob))
+	}
+	panic("the HTML debug render was created without files or glob pattern")
+}
+
+func (r HTML) Render(w http.ResponseWriter) error {
+	r.WriteContentType(w)
+
+	if r.Name == "" {
+		return r.Template.Execute(w, r.Data)
+	}
+	return r.Template.ExecuteTemplate(w, r.Name, r.Data)
+}
+
+func (r HTML) WriteContentType(w http.ResponseWriter) {
+	writeContentType(w, htmlContentType)
+}

log/vendor/github.com/gin-gonic/gin/render/json.go

@@ -0,0 +1,146 @@
+// 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 (
+	"bytes"
+	"fmt"
+	"html/template"
+	"net/http"
+
+	"github.com/gin-gonic/gin/json"
+)
+
+type JSON struct {
+	Data interface{}
+}
+
+type IndentedJSON struct {
+	Data interface{}
+}
+
+type SecureJSON struct {
+	Prefix string
+	Data   interface{}
+}
+
+type JsonpJSON struct {
+	Callback string
+	Data     interface{}
+}
+
+type AsciiJSON struct {
+	Data interface{}
+}
+
+type SecureJSONPrefix string
+
+var jsonContentType = []string{"application/json; charset=utf-8"}
+var jsonpContentType = []string{"application/javascript; charset=utf-8"}
+var jsonAsciiContentType = []string{"application/json"}
+
+func (r JSON) Render(w http.ResponseWriter) (err error) {
+	if err = WriteJSON(w, r.Data); err != nil {
+		panic(err)
+	}
+	return
+}
+
+func (r JSON) WriteContentType(w http.ResponseWriter) {
+	writeContentType(w, jsonContentType)
+}
+
+func WriteJSON(w http.ResponseWriter, obj interface{}) error {
+	writeContentType(w, jsonContentType)
+	jsonBytes, err := json.Marshal(obj)
+	if err != nil {
+		return err
+	}
+	w.Write(jsonBytes)
+	return nil
+}
+
+func (r IndentedJSON) Render(w http.ResponseWriter) error {
+	r.WriteContentType(w)
+	jsonBytes, err := json.MarshalIndent(r.Data, "", "    ")
+	if err != nil {
+		return err
+	}
+	w.Write(jsonBytes)
+	return nil
+}
+
+func (r IndentedJSON) WriteContentType(w http.ResponseWriter) {
+	writeContentType(w, jsonContentType)
+}
+
+func (r SecureJSON) Render(w http.ResponseWriter) error {
+	r.WriteContentType(w)
+	jsonBytes, err := json.Marshal(r.Data)
+	if err != nil {
+		return err
+	}
+	// if the jsonBytes is array values
+	if bytes.HasPrefix(jsonBytes, []byte("[")) && bytes.HasSuffix(jsonBytes, []byte("]")) {
+		w.Write([]byte(r.Prefix))
+	}
+	w.Write(jsonBytes)
+	return nil
+}
+
+func (r SecureJSON) WriteContentType(w http.ResponseWriter) {
+	writeContentType(w, jsonContentType)
+}
+
+func (r JsonpJSON) Render(w http.ResponseWriter) (err error) {
+	r.WriteContentType(w)
+	ret, err := json.Marshal(r.Data)
+	if err != nil {
+		return err
+	}
+
+	if r.Callback == "" {
+		w.Write(ret)
+		return nil
+	}
+
+	callback := template.JSEscapeString(r.Callback)
+	w.Write([]byte(callback))
+	w.Write([]byte("("))
+	w.Write(ret)
+	w.Write([]byte(")"))
+
+	return nil
+}
+
+func (r JsonpJSON) WriteContentType(w http.ResponseWriter) {
+	writeContentType(w, jsonpContentType)
+}
+
+func (r AsciiJSON) Render(w http.ResponseWriter) (err error) {
+	r.WriteContentType(w)
+	ret, err := json.Marshal(r.Data)
+	if err != nil {
+		return err
+	}
+
+	var buffer bytes.Buffer
+	for _, r := range string(ret) {
+		cvt := ""
+		if r < 128 {
+			cvt = string(r)
+		} else {
+			cvt = fmt.Sprintf("\\u%04x", int64(r))
+		}
+		buffer.WriteString(cvt)
+	}
+
+	w.Write(buffer.Bytes())
+	return nil
+}
+
+func (r AsciiJSON) WriteContentType(w http.ResponseWriter) {
+	writeContentType(w, jsonAsciiContentType)
+}

log/vendor/github.com/gin-gonic/gin/render/msgpack.go

@@ -0,0 +1,31 @@
+// Copyright 2017 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"
+
+	"github.com/ugorji/go/codec"
+)
+
+type MsgPack struct {
+	Data interface{}
+}
+
+var msgpackContentType = []string{"application/msgpack; charset=utf-8"}
+
+func (r MsgPack) WriteContentType(w http.ResponseWriter) {
+	writeContentType(w, msgpackContentType)
+}
+
+func (r MsgPack) Render(w http.ResponseWriter) error {
+	return WriteMsgPack(w, r.Data)
+}
+
+func WriteMsgPack(w http.ResponseWriter, obj interface{}) error {
+	writeContentType(w, msgpackContentType)
+	var h codec.Handle = new(codec.MsgpackHandle)
+	return codec.NewEncoder(w, h).Encode(obj)
+}

log/vendor/github.com/gin-gonic/gin/render/reader.go

@@ -0,0 +1,36 @@
+package render
+
+import (
+	"io"
+	"net/http"
+	"strconv"
+)
+
+type Reader struct {
+	ContentType   string
+	ContentLength int64
+	Reader        io.Reader
+	Headers       map[string]string
+}
+
+// Render (Reader) writes data with custom ContentType and headers.
+func (r Reader) Render(w http.ResponseWriter) (err error) {
+	r.WriteContentType(w)
+	r.Headers["Content-Length"] = strconv.FormatInt(r.ContentLength, 10)
+	r.writeHeaders(w, r.Headers)
+	_, err = io.Copy(w, r.Reader)
+	return
+}
+
+func (r Reader) WriteContentType(w http.ResponseWriter) {
+	writeContentType(w, []string{r.ContentType})
+}
+
+func (r Reader) writeHeaders(w http.ResponseWriter, headers map[string]string) {
+	header := w.Header()
+	for k, v := range headers {
+		if val := header[k]; len(val) == 0 {
+			header[k] = []string{v}
+		}
+	}
+}

log/vendor/github.com/gin-gonic/gin/render/redirect.go

@@ -0,0 +1,28 @@
+// 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 {
+	// todo(thinkerou): go1.6 not support StatusPermanentRedirect(308)
+	// when we upgrade go version we can use http.StatusPermanentRedirect
+	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
+}
+
+func (r Redirect) WriteContentType(http.ResponseWriter) {}

log/vendor/github.com/gin-gonic/gin/render/render.go

@@ -0,0 +1,37 @@
+// 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
+	WriteContentType(w http.ResponseWriter)
+}
+
+var (
+	_ Render     = JSON{}
+	_ Render     = IndentedJSON{}
+	_ Render     = SecureJSON{}
+	_ Render     = JsonpJSON{}
+	_ Render     = XML{}
+	_ Render     = String{}
+	_ Render     = Redirect{}
+	_ Render     = Data{}
+	_ Render     = HTML{}
+	_ HTMLRender = HTMLDebug{}
+	_ HTMLRender = HTMLProduction{}
+	_ Render     = YAML{}
+	_ Render     = MsgPack{}
+	_ Render     = Reader{}
+	_ Render     = AsciiJSON{}
+)
+
+func writeContentType(w http.ResponseWriter, value []string) {
+	header := w.Header()
+	if val := header["Content-Type"]; len(val) == 0 {
+		header["Content-Type"] = value
+	}
+}

log/vendor/github.com/gin-gonic/gin/render/text.go

@@ -0,0 +1,36 @@
+// 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 (r String) WriteContentType(w http.ResponseWriter) {
+	writeContentType(w, plainContentType)
+}
+
+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)
+	}
+}

log/vendor/github.com/gin-gonic/gin/render/xml.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 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 {
+	r.WriteContentType(w)
+	return xml.NewEncoder(w).Encode(r.Data)
+}
+
+func (r XML) WriteContentType(w http.ResponseWriter) {
+	writeContentType(w, xmlContentType)
+}

log/vendor/github.com/gin-gonic/gin/render/yaml.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 (
+	"net/http"
+
+	"gopkg.in/yaml.v2"
+)
+
+type YAML struct {
+	Data interface{}
+}
+
+var yamlContentType = []string{"application/x-yaml; charset=utf-8"}
+
+func (r YAML) Render(w http.ResponseWriter) error {
+	r.WriteContentType(w)
+
+	bytes, err := yaml.Marshal(r.Data)
+	if err != nil {
+		return err
+	}
+
+	w.Write(bytes)
+	return nil
+}
+
+func (r YAML) WriteContentType(w http.ResponseWriter) {
+	writeContentType(w, yamlContentType)
+}

log/vendor/github.com/gin-gonic/gin/response_writer.go

@@ -0,0 +1,115 @@
+// 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 = http.StatusOK
+)
+
+type responseWriterBase 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()
+}
+
+type 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
+}
+
+// Hijack 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()
+}
+
+// CloseNotify implements the http.CloseNotify interface.
+func (w *responseWriter) CloseNotify() <-chan bool {
+	return w.ResponseWriter.(http.CloseNotifier).CloseNotify()
+}
+
+// Flush implements the http.Flush interface.
+func (w *responseWriter) Flush() {
+	w.WriteHeaderNow()
+	w.ResponseWriter.(http.Flusher).Flush()
+}

log/vendor/github.com/gin-gonic/gin/response_writer_1.7.go

@@ -0,0 +1,12 @@
+// +build !go1.8
+
+// Copyright 2018 Gin Core Team.  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
+
+// ResponseWriter ...
+type ResponseWriter interface {
+	responseWriterBase
+}

log/vendor/github.com/gin-gonic/gin/response_writer_1.8.go

@@ -0,0 +1,25 @@
+// +build go1.8
+
+// Copyright 2018 Gin Core Team.  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"
+)
+
+// ResponseWriter ...
+type ResponseWriter interface {
+	responseWriterBase
+	// get the http.Pusher for server push
+	Pusher() http.Pusher
+}
+
+func (w *responseWriter) Pusher() (pusher http.Pusher) {
+	if pusher, ok := w.ResponseWriter.(http.Pusher); ok {
+		return pusher
+	}
+	return nil
+}

log/vendor/github.com/gin-gonic/gin/routergroup.go

@@ -0,0 +1,213 @@
+// 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
+}
+
+type 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).
+type 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 serve 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(http.StatusNotFound)
+		}
+		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
+}

log/vendor/github.com/gin-gonic/gin/test_helpers.go

@@ -0,0 +1,16 @@
+// Copyright 2017 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"
+
+// CreateTestContext returns a fresh engine and context for testing purposes
+func CreateTestContext(w http.ResponseWriter) (c *Context, r *Engine) {
+	r = New()
+	c = r.allocateContext()
+	c.reset()
+	c.writermem.reset(w)
+	return
+}

log/vendor/github.com/gin-gonic/gin/tree.go

@@ -0,0 +1,620 @@
+// Copyright 2013 Julien Schmidt. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be found
+// at https://github.com/julienschmidt/httprouter/blob/master/LICENSE
+
+package gin
+
+import (
+	"net/url"
+	"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
+
+// Get 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
+}
+
+// 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) 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
+	indices   string
+	children  []*node
+	handlers  HandlersChain
+	priority  uint32
+	nType     nodeType
+	maxParams uint8
+	wildChild bool
+}
+
+// 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
+		n.children[newPos-1], n.children[newPos] = n.children[newPos], n.children[newPos-1]
+
+		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
+}
+
+// getValue 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, unescape bool) (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:]
+					val := path[:end]
+					if unescape {
+						var err error
+						if p[i].Value, err = url.QueryUnescape(val); err != nil {
+							p[i].Value = val // fallback, in case of error
+						}
+					} else {
+						p[i].Value = val
+					}
+
+					// 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
+					}
+					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:]
+					if unescape {
+						var err error
+						if p[i].Value, err = url.QueryUnescape(path); err != nil {
+							p[i].Value = path // fallback, in case of error
+						}
+					} else {
+						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
+	}
+}
+
+// findCaseInsensitivePath 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
+}

log/vendor/github.com/gin-gonic/gin/utils.go

@@ -0,0 +1,151 @@
+// 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)
+		}
+	}
+}
+
+// WrapF is a helper function for wrapping http.HandlerFunc
+// Returns a Gin middleware
+func WrapF(f http.HandlerFunc) HandlerFunc {
+	return func(c *Context) {
+		f(c.Writer, c.Request)
+	}
+}
+
+// WrapH is a helper function for wrapping http.Handler
+// Returns a Gin middleware
+func WrapH(h http.Handler) HandlerFunc {
+	return func(c *Context) {
+		h.ServeHTTP(c.Writer, c.Request)
+	}
+}
+
+// H is a shortcut for map[string]interface{}
+type H map[string]interface{}
+
+// MarshalXML 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
+		}
+	}
+
+	return e.EncodeToken(xml.EndElement{Name: start.Name})
+}
+
+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 {
+		if part = strings.TrimSpace(strings.Split(part, ";")[0]); part != "" {
+			out = append(out, part)
+		}
+	}
+	return out
+}
+
+func lastChar(str string) uint8 {
+	if str == "" {
+		panic("The length of the string can't be 0")
+	}
+	return str[len(str)-1]
+}
+
+func nameOfFunction(f interface{}) string {
+	return runtime.FuncForPC(reflect.ValueOf(f).Pointer()).Name()
+}
+
+func joinPaths(absolutePath, relativePath string) string {
+	if relativePath == "" {
+		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"); port != "" {
+			debugPrint("Environment variable PORT=\"%s\"", port)
+			return ":" + port
+		}
+		debugPrint("Environment variable PORT is undefined. Using port :8080 by default")
+		return ":8080"
+	case 1:
+		return addr[0]
+	default:
+		panic("too much parameters")
+	}
+}

log/vendor/github.com/gin-gonic/gin/wercker.yml

@@ -0,0 +1 @@
+box: wercker/default

log/vendor/github.com/golang/protobuf/AUTHORS

@@ -0,0 +1,3 @@
+# This source code refers to The Go Authors for copyright purposes.
+# The master list of authors is in the main Go distribution,
+# visible at http://tip.golang.org/AUTHORS.

log/vendor/github.com/golang/protobuf/CONTRIBUTORS

@@ -0,0 +1,3 @@
+# This source code was written by the Go contributors.
+# The master list of contributors is in the main Go distribution,
+# visible at http://tip.golang.org/CONTRIBUTORS.

log/vendor/github.com/golang/protobuf/LICENSE

@@ -0,0 +1,28 @@
+Copyright 2010 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.
+

log/vendor/github.com/golang/protobuf/proto/clone.go

@@ -0,0 +1,253 @@
+// Go support for Protocol Buffers - Google's data interchange format
+//
+// Copyright 2011 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.
+
+// Protocol buffer deep copy and merge.
+// TODO: RawMessage.
+
+package proto
+
+import (
+	"fmt"
+	"log"
+	"reflect"
+	"strings"
+)
+
+// Clone returns a deep copy of a protocol buffer.
+func Clone(src Message) Message {
+	in := reflect.ValueOf(src)
+	if in.IsNil() {
+		return src
+	}
+	out := reflect.New(in.Type().Elem())
+	dst := out.Interface().(Message)
+	Merge(dst, src)
+	return dst
+}
+
+// Merger is the interface representing objects that can merge messages of the same type.
+type Merger interface {
+	// Merge merges src into this message.
+	// Required and optional fields that are set in src will be set to that value in dst.
+	// Elements of repeated fields will be appended.
+	//
+	// Merge may panic if called with a different argument type than the receiver.
+	Merge(src Message)
+}
+
+// generatedMerger is the custom merge method that generated protos will have.
+// We must add this method since a generate Merge method will conflict with
+// many existing protos that have a Merge data field already defined.
+type generatedMerger interface {
+	XXX_Merge(src Message)
+}
+
+// Merge merges src into dst.
+// Required and optional fields that are set in src will be set to that value in dst.
+// Elements of repeated fields will be appended.
+// Merge panics if src and dst are not the same type, or if dst is nil.
+func Merge(dst, src Message) {
+	if m, ok := dst.(Merger); ok {
+		m.Merge(src)
+		return
+	}
+
+	in := reflect.ValueOf(src)
+	out := reflect.ValueOf(dst)
+	if out.IsNil() {
+		panic("proto: nil destination")
+	}
+	if in.Type() != out.Type() {
+		panic(fmt.Sprintf("proto.Merge(%T, %T) type mismatch", dst, src))
+	}
+	if in.IsNil() {
+		return // Merge from nil src is a noop
+	}
+	if m, ok := dst.(generatedMerger); ok {
+		m.XXX_Merge(src)
+		return
+	}
+	mergeStruct(out.Elem(), in.Elem())
+}
+
+func mergeStruct(out, in reflect.Value) {
+	sprop := GetProperties(in.Type())
+	for i := 0; i < in.NumField(); i++ {
+		f := in.Type().Field(i)
+		if strings.HasPrefix(f.Name, "XXX_") {
+			continue
+		}
+		mergeAny(out.Field(i), in.Field(i), false, sprop.Prop[i])
+	}
+
+	if emIn, err := extendable(in.Addr().Interface()); err == nil {
+		emOut, _ := extendable(out.Addr().Interface())
+		mIn, muIn := emIn.extensionsRead()
+		if mIn != nil {
+			mOut := emOut.extensionsWrite()
+			muIn.Lock()
+			mergeExtension(mOut, mIn)
+			muIn.Unlock()
+		}
+	}
+
+	uf := in.FieldByName("XXX_unrecognized")
+	if !uf.IsValid() {
+		return
+	}
+	uin := uf.Bytes()
+	if len(uin) > 0 {
+		out.FieldByName("XXX_unrecognized").SetBytes(append([]byte(nil), uin...))
+	}
+}
+
+// mergeAny performs a merge between two values of the same type.
+// viaPtr indicates whether the values were indirected through a pointer (implying proto2).
+// prop is set if this is a struct field (it may be nil).
+func mergeAny(out, in reflect.Value, viaPtr bool, prop *Properties) {
+	if in.Type() == protoMessageType {
+		if !in.IsNil() {
+			if out.IsNil() {
+				out.Set(reflect.ValueOf(Clone(in.Interface().(Message))))
+			} else {
+				Merge(out.Interface().(Message), in.Interface().(Message))
+			}
+		}
+		return
+	}
+	switch in.Kind() {
+	case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64,
+		reflect.String, reflect.Uint32, reflect.Uint64:
+		if !viaPtr && isProto3Zero(in) {
+			return
+		}
+		out.Set(in)
+	case reflect.Interface:
+		// Probably a oneof field; copy non-nil values.
+		if in.IsNil() {
+			return
+		}
+		// Allocate destination if it is not set, or set to a different type.
+		// Otherwise we will merge as normal.
+		if out.IsNil() || out.Elem().Type() != in.Elem().Type() {
+			out.Set(reflect.New(in.Elem().Elem().Type())) // interface -> *T -> T -> new(T)
+		}
+		mergeAny(out.Elem(), in.Elem(), false, nil)
+	case reflect.Map:
+		if in.Len() == 0 {
+			return
+		}
+		if out.IsNil() {
+			out.Set(reflect.MakeMap(in.Type()))
+		}
+		// For maps with value types of *T or []byte we need to deep copy each value.
+		elemKind := in.Type().Elem().Kind()
+		for _, key := range in.MapKeys() {
+			var val reflect.Value
+			switch elemKind {
+			case reflect.Ptr:
+				val = reflect.New(in.Type().Elem().Elem())
+				mergeAny(val, in.MapIndex(key), false, nil)
+			case reflect.Slice:
+				val = in.MapIndex(key)
+				val = reflect.ValueOf(append([]byte{}, val.Bytes()...))
+			default:
+				val = in.MapIndex(key)
+			}
+			out.SetMapIndex(key, val)
+		}
+	case reflect.Ptr:
+		if in.IsNil() {
+			return
+		}
+		if out.IsNil() {
+			out.Set(reflect.New(in.Elem().Type()))
+		}
+		mergeAny(out.Elem(), in.Elem(), true, nil)
+	case reflect.Slice:
+		if in.IsNil() {
+			return
+		}
+		if in.Type().Elem().Kind() == reflect.Uint8 {
+			// []byte is a scalar bytes field, not a repeated field.
+
+			// Edge case: if this is in a proto3 message, a zero length
+			// bytes field is considered the zero value, and should not
+			// be merged.
+			if prop != nil && prop.proto3 && in.Len() == 0 {
+				return
+			}
+
+			// Make a deep copy.
+			// Append to []byte{} instead of []byte(nil) so that we never end up
+			// with a nil result.
+			out.SetBytes(append([]byte{}, in.Bytes()...))
+			return
+		}
+		n := in.Len()
+		if out.IsNil() {
+			out.Set(reflect.MakeSlice(in.Type(), 0, n))
+		}
+		switch in.Type().Elem().Kind() {
+		case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64,
+			reflect.String, reflect.Uint32, reflect.Uint64:
+			out.Set(reflect.AppendSlice(out, in))
+		default:
+			for i := 0; i < n; i++ {
+				x := reflect.Indirect(reflect.New(in.Type().Elem()))
+				mergeAny(x, in.Index(i), false, nil)
+				out.Set(reflect.Append(out, x))
+			}
+		}
+	case reflect.Struct:
+		mergeStruct(out, in)
+	default:
+		// unknown type, so not a protocol buffer
+		log.Printf("proto: don't know how to copy %v", in)
+	}
+}
+
+func mergeExtension(out, in map[int32]Extension) {
+	for extNum, eIn := range in {
+		eOut := Extension{desc: eIn.desc}
+		if eIn.value != nil {
+			v := reflect.New(reflect.TypeOf(eIn.value)).Elem()
+			mergeAny(v, reflect.ValueOf(eIn.value), false, nil)
+			eOut.value = v.Interface()
+		}
+		if eIn.enc != nil {
+			eOut.enc = make([]byte, len(eIn.enc))
+			copy(eOut.enc, eIn.enc)
+		}
+
+		out[extNum] = eOut
+	}
+}

log/vendor/github.com/golang/protobuf/proto/decode.go

@@ -0,0 +1,427 @@
+// 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.
+
+package proto
+
+/*
+ * Routines for decoding protocol buffer data to construct in-memory representations.
+ */
+
+import (
+	"errors"
+	"fmt"
+	"io"
+)
+
+// errOverflow is returned when an integer is too large to be represented.
+var errOverflow = errors.New("proto: integer overflow")
+
+// ErrInternalBadWireType is returned by generated code when an incorrect
+// wire type is encountered. It does not get returned to user code.
+var ErrInternalBadWireType = errors.New("proto: internal error: bad wiretype for oneof")
+
+// DecodeVarint reads a varint-encoded integer from the slice.
+// It returns the integer and the number of bytes consumed, or
+// zero if there is not enough.
+// This is the format for the
+// int32, int64, uint32, uint64, bool, and enum
+// protocol buffer types.
+func DecodeVarint(buf []byte) (x uint64, n int) {
+	for shift := uint(0); shift < 64; shift += 7 {
+		if n >= len(buf) {
+			return 0, 0
+		}
+		b := uint64(buf[n])
+		n++
+		x |= (b & 0x7F) << shift
+		if (b & 0x80) == 0 {
+			return x, n
+		}
+	}
+
+	// The number is too large to represent in a 64-bit value.
+	return 0, 0
+}
+
+func (p *Buffer) decodeVarintSlow() (x uint64, err error) {
+	i := p.index
+	l := len(p.buf)
+
+	for shift := uint(0); shift < 64; shift += 7 {
+		if i >= l {
+			err = io.ErrUnexpectedEOF
+			return
+		}
+		b := p.buf[i]
+		i++
+		x |= (uint64(b) & 0x7F) << shift
+		if b < 0x80 {
+			p.index = i
+			return
+		}
+	}
+
+	// The number is too large to represent in a 64-bit value.
+	err = errOverflow
+	return
+}
+
+// DecodeVarint reads a varint-encoded integer from the Buffer.
+// This is the format for the
+// int32, int64, uint32, uint64, bool, and enum
+// protocol buffer types.
+func (p *Buffer) DecodeVarint() (x uint64, err error) {
+	i := p.index
+	buf := p.buf
+
+	if i >= len(buf) {
+		return 0, io.ErrUnexpectedEOF
+	} else if buf[i] < 0x80 {
+		p.index++
+		return uint64(buf[i]), nil
+	} else if len(buf)-i < 10 {
+		return p.decodeVarintSlow()
+	}
+
+	var b uint64
+	// we already checked the first byte
+	x = uint64(buf[i]) - 0x80
+	i++
+
+	b = uint64(buf[i])
+	i++
+	x += b << 7
+	if b&0x80 == 0 {
+		goto done
+	}
+	x -= 0x80 << 7
+
+	b = uint64(buf[i])
+	i++
+	x += b << 14
+	if b&0x80 == 0 {
+		goto done
+	}
+	x -= 0x80 << 14
+
+	b = uint64(buf[i])
+	i++
+	x += b << 21
+	if b&0x80 == 0 {
+		goto done
+	}
+	x -= 0x80 << 21
+
+	b = uint64(buf[i])
+	i++
+	x += b << 28
+	if b&0x80 == 0 {
+		goto done
+	}
+	x -= 0x80 << 28
+
+	b = uint64(buf[i])
+	i++
+	x += b << 35
+	if b&0x80 == 0 {
+		goto done
+	}
+	x -= 0x80 << 35
+
+	b = uint64(buf[i])
+	i++
+	x += b << 42
+	if b&0x80 == 0 {
+		goto done
+	}
+	x -= 0x80 << 42
+
+	b = uint64(buf[i])
+	i++
+	x += b << 49
+	if b&0x80 == 0 {
+		goto done
+	}
+	x -= 0x80 << 49
+
+	b = uint64(buf[i])
+	i++
+	x += b << 56
+	if b&0x80 == 0 {
+		goto done
+	}
+	x -= 0x80 << 56
+
+	b = uint64(buf[i])
+	i++
+	x += b << 63
+	if b&0x80 == 0 {
+		goto done
+	}
+
+	return 0, errOverflow
+
+done:
+	p.index = i
+	return x, nil
+}
+
+// DecodeFixed64 reads a 64-bit integer from the Buffer.
+// This is the format for the
+// fixed64, sfixed64, and double protocol buffer types.
+func (p *Buffer) DecodeFixed64() (x uint64, err error) {
+	// x, err already 0
+	i := p.index + 8
+	if i < 0 || i > len(p.buf) {
+		err = io.ErrUnexpectedEOF
+		return
+	}
+	p.index = i
+
+	x = uint64(p.buf[i-8])
+	x |= uint64(p.buf[i-7]) << 8
+	x |= uint64(p.buf[i-6]) << 16
+	x |= uint64(p.buf[i-5]) << 24
+	x |= uint64(p.buf[i-4]) << 32
+	x |= uint64(p.buf[i-3]) << 40
+	x |= uint64(p.buf[i-2]) << 48
+	x |= uint64(p.buf[i-1]) << 56
+	return
+}
+
+// DecodeFixed32 reads a 32-bit integer from the Buffer.
+// This is the format for the
+// fixed32, sfixed32, and float protocol buffer types.
+func (p *Buffer) DecodeFixed32() (x uint64, err error) {
+	// x, err already 0
+	i := p.index + 4
+	if i < 0 || i > len(p.buf) {
+		err = io.ErrUnexpectedEOF
+		return
+	}
+	p.index = i
+
+	x = uint64(p.buf[i-4])
+	x |= uint64(p.buf[i-3]) << 8
+	x |= uint64(p.buf[i-2]) << 16
+	x |= uint64(p.buf[i-1]) << 24
+	return
+}
+
+// DecodeZigzag64 reads a zigzag-encoded 64-bit integer
+// from the Buffer.
+// This is the format used for the sint64 protocol buffer type.
+func (p *Buffer) DecodeZigzag64() (x uint64, err error) {
+	x, err = p.DecodeVarint()
+	if err != nil {
+		return
+	}
+	x = (x >> 1) ^ uint64((int64(x&1)<<63)>>63)
+	return
+}
+
+// DecodeZigzag32 reads a zigzag-encoded 32-bit integer
+// from  the Buffer.
+// This is the format used for the sint32 protocol buffer type.
+func (p *Buffer) DecodeZigzag32() (x uint64, err error) {
+	x, err = p.DecodeVarint()
+	if err != nil {
+		return
+	}
+	x = uint64((uint32(x) >> 1) ^ uint32((int32(x&1)<<31)>>31))
+	return
+}
+
+// DecodeRawBytes reads a count-delimited byte buffer from the Buffer.
+// This is the format used for the bytes protocol buffer
+// type and for embedded messages.
+func (p *Buffer) DecodeRawBytes(alloc bool) (buf []byte, err error) {
+	n, err := p.DecodeVarint()
+	if err != nil {
+		return nil, err
+	}
+
+	nb := int(n)
+	if nb < 0 {
+		return nil, fmt.Errorf("proto: bad byte length %d", nb)
+	}
+	end := p.index + nb
+	if end < p.index || end > len(p.buf) {
+		return nil, io.ErrUnexpectedEOF
+	}
+
+	if !alloc {
+		// todo: check if can get more uses of alloc=false
+		buf = p.buf[p.index:end]
+		p.index += nb
+		return
+	}
+
+	buf = make([]byte, nb)
+	copy(buf, p.buf[p.index:])
+	p.index += nb
+	return
+}
+
+// DecodeStringBytes reads an encoded string from the Buffer.
+// This is the format used for the proto2 string type.
+func (p *Buffer) DecodeStringBytes() (s string, err error) {
+	buf, err := p.DecodeRawBytes(false)
+	if err != nil {
+		return
+	}
+	return string(buf), nil
+}
+
+// Unmarshaler is the interface representing objects that can
+// unmarshal themselves.  The argument points to data that may be
+// overwritten, so implementations should not keep references to the
+// buffer.
+// Unmarshal implementations should not clear the receiver.
+// Any unmarshaled data should be merged into the receiver.
+// Callers of Unmarshal that do not want to retain existing data
+// should Reset the receiver before calling Unmarshal.
+type Unmarshaler interface {
+	Unmarshal([]byte) error
+}
+
+// newUnmarshaler is the interface representing objects that can
+// unmarshal themselves. The semantics are identical to Unmarshaler.
+//
+// This exists to support protoc-gen-go generated messages.
+// The proto package will stop type-asserting to this interface in the future.
+//
+// DO NOT DEPEND ON THIS.
+type newUnmarshaler interface {
+	XXX_Unmarshal([]byte) error
+}
+
+// Unmarshal parses the protocol buffer representation in buf and places the
+// decoded result in pb.  If the struct underlying pb does not match
+// the data in buf, the results can be unpredictable.
+//
+// Unmarshal resets pb before starting to unmarshal, so any
+// existing data in pb is always removed. Use UnmarshalMerge
+// to preserve and append to existing data.
+func Unmarshal(buf []byte, pb Message) error {
+	pb.Reset()
+	if u, ok := pb.(newUnmarshaler); ok {
+		return u.XXX_Unmarshal(buf)
+	}
+	if u, ok := pb.(Unmarshaler); ok {
+		return u.Unmarshal(buf)
+	}
+	return NewBuffer(buf).Unmarshal(pb)
+}
+
+// UnmarshalMerge parses the protocol buffer representation in buf and
+// writes the decoded result to pb.  If the struct underlying pb does not match
+// the data in buf, the results can be unpredictable.
+//
+// UnmarshalMerge merges into existing data in pb.
+// Most code should use Unmarshal instead.
+func UnmarshalMerge(buf []byte, pb Message) error {
+	if u, ok := pb.(newUnmarshaler); ok {
+		return u.XXX_Unmarshal(buf)
+	}
+	if u, ok := pb.(Unmarshaler); ok {
+		// NOTE: The history of proto have unfortunately been inconsistent
+		// whether Unmarshaler should or should not implicitly clear itself.
+		// Some implementations do, most do not.
+		// Thus, calling this here may or may not do what people want.
+		//
+		// See https://github.com/golang/protobuf/issues/424
+		return u.Unmarshal(buf)
+	}
+	return NewBuffer(buf).Unmarshal(pb)
+}
+
+// DecodeMessage reads a count-delimited message from the Buffer.
+func (p *Buffer) DecodeMessage(pb Message) error {
+	enc, err := p.DecodeRawBytes(false)
+	if err != nil {
+		return err
+	}
+	return NewBuffer(enc).Unmarshal(pb)
+}
+
+// DecodeGroup reads a tag-delimited group from the Buffer.
+// StartGroup tag is already consumed. This function consumes
+// EndGroup tag.
+func (p *Buffer) DecodeGroup(pb Message) error {
+	b := p.buf[p.index:]
+	x, y := findEndGroup(b)
+	if x < 0 {
+		return io.ErrUnexpectedEOF
+	}
+	err := Unmarshal(b[:x], pb)
+	p.index += y
+	return err
+}
+
+// Unmarshal parses the protocol buffer representation in the
+// Buffer and places the decoded result in pb.  If the struct
+// underlying pb does not match the data in the buffer, the results can be
+// unpredictable.
+//
+// Unlike proto.Unmarshal, this does not reset pb before starting to unmarshal.
+func (p *Buffer) Unmarshal(pb Message) error {
+	// If the object can unmarshal itself, let it.
+	if u, ok := pb.(newUnmarshaler); ok {
+		err := u.XXX_Unmarshal(p.buf[p.index:])
+		p.index = len(p.buf)
+		return err
+	}
+	if u, ok := pb.(Unmarshaler); ok {
+		// NOTE: The history of proto have unfortunately been inconsistent
+		// whether Unmarshaler should or should not implicitly clear itself.
+		// Some implementations do, most do not.
+		// Thus, calling this here may or may not do what people want.
+		//
+		// See https://github.com/golang/protobuf/issues/424
+		err := u.Unmarshal(p.buf[p.index:])
+		p.index = len(p.buf)
+		return err
+	}
+
+	// Slow workaround for messages that aren't Unmarshalers.
+	// This includes some hand-coded .pb.go files and
+	// bootstrap protos.
+	// TODO: fix all of those and then add Unmarshal to
+	// the Message interface. Then:
+	// The cast above and code below can be deleted.
+	// The old unmarshaler can be deleted.
+	// Clients can call Unmarshal directly (can already do that, actually).
+	var info InternalMessageInfo
+	err := info.Unmarshal(pb, p.buf[p.index:])
+	p.index = len(p.buf)
+	return err
+}

log/vendor/github.com/golang/protobuf/proto/deprecated.go

@@ -0,0 +1,63 @@
+// Go support for Protocol Buffers - Google's data interchange format
+//
+// Copyright 2018 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.
+
+package proto
+
+import "errors"
+
+// Deprecated: do not use.
+type Stats struct{ Emalloc, Dmalloc, Encode, Decode, Chit, Cmiss, Size uint64 }
+
+// Deprecated: do not use.
+func GetStats() Stats { return Stats{} }
+
+// Deprecated: do not use.
+func MarshalMessageSet(interface{}) ([]byte, error) {
+	return nil, errors.New("proto: not implemented")
+}
+
+// Deprecated: do not use.
+func UnmarshalMessageSet([]byte, interface{}) error {
+	return errors.New("proto: not implemented")
+}
+
+// Deprecated: do not use.
+func MarshalMessageSetJSON(interface{}) ([]byte, error) {
+	return nil, errors.New("proto: not implemented")
+}
+
+// Deprecated: do not use.
+func UnmarshalMessageSetJSON([]byte, interface{}) error {
+	return errors.New("proto: not implemented")
+}
+
+// Deprecated: do not use.
+func RegisterMessageSetType(Message, int32, string) {}

log/vendor/github.com/golang/protobuf/proto/discard.go

@@ -0,0 +1,350 @@
+// Go support for Protocol Buffers - Google's data interchange format
+//
+// Copyright 2017 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.
+
+package proto
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+	"sync"
+	"sync/atomic"
+)
+
+type generatedDiscarder interface {
+	XXX_DiscardUnknown()
+}
+
+// DiscardUnknown recursively discards all unknown fields from this message
+// and all embedded messages.
+//
+// When unmarshaling a message with unrecognized fields, the tags and values
+// of such fields are preserved in the Message. This allows a later call to
+// marshal to be able to produce a message that continues to have those
+// unrecognized fields. To avoid this, DiscardUnknown is used to
+// explicitly clear the unknown fields after unmarshaling.
+//
+// For proto2 messages, the unknown fields of message extensions are only
+// discarded from messages that have been accessed via GetExtension.
+func DiscardUnknown(m Message) {
+	if m, ok := m.(generatedDiscarder); ok {
+		m.XXX_DiscardUnknown()
+		return
+	}
+	// TODO: Dynamically populate a InternalMessageInfo for legacy messages,
+	// but the master branch has no implementation for InternalMessageInfo,
+	// so it would be more work to replicate that approach.
+	discardLegacy(m)
+}
+
+// DiscardUnknown recursively discards all unknown fields.
+func (a *InternalMessageInfo) DiscardUnknown(m Message) {
+	di := atomicLoadDiscardInfo(&a.discard)
+	if di == nil {
+		di = getDiscardInfo(reflect.TypeOf(m).Elem())
+		atomicStoreDiscardInfo(&a.discard, di)
+	}
+	di.discard(toPointer(&m))
+}
+
+type discardInfo struct {
+	typ reflect.Type
+
+	initialized int32 // 0: only typ is valid, 1: everything is valid
+	lock        sync.Mutex
+
+	fields       []discardFieldInfo
+	unrecognized field
+}
+
+type discardFieldInfo struct {
+	field   field // Offset of field, guaranteed to be valid
+	discard func(src pointer)
+}
+
+var (
+	discardInfoMap  = map[reflect.Type]*discardInfo{}
+	discardInfoLock sync.Mutex
+)
+
+func getDiscardInfo(t reflect.Type) *discardInfo {
+	discardInfoLock.Lock()
+	defer discardInfoLock.Unlock()
+	di := discardInfoMap[t]
+	if di == nil {
+		di = &discardInfo{typ: t}
+		discardInfoMap[t] = di
+	}
+	return di
+}
+
+func (di *discardInfo) discard(src pointer) {
+	if src.isNil() {
+		return // Nothing to do.
+	}
+
+	if atomic.LoadInt32(&di.initialized) == 0 {
+		di.computeDiscardInfo()
+	}
+
+	for _, fi := range di.fields {
+		sfp := src.offset(fi.field)
+		fi.discard(sfp)
+	}
+
+	// For proto2 messages, only discard unknown fields in message extensions
+	// that have been accessed via GetExtension.
+	if em, err := extendable(src.asPointerTo(di.typ).Interface()); err == nil {
+		// Ignore lock since DiscardUnknown is not concurrency safe.
+		emm, _ := em.extensionsRead()
+		for _, mx := range emm {
+			if m, ok := mx.value.(Message); ok {
+				DiscardUnknown(m)
+			}
+		}
+	}
+
+	if di.unrecognized.IsValid() {
+		*src.offset(di.unrecognized).toBytes() = nil
+	}
+}
+
+func (di *discardInfo) computeDiscardInfo() {
+	di.lock.Lock()
+	defer di.lock.Unlock()
+	if di.initialized != 0 {
+		return
+	}
+	t := di.typ
+	n := t.NumField()
+
+	for i := 0; i < n; i++ {
+		f := t.Field(i)
+		if strings.HasPrefix(f.Name, "XXX_") {
+			continue
+		}
+
+		dfi := discardFieldInfo{field: toField(&f)}
+		tf := f.Type
+
+		// Unwrap tf to get its most basic type.
+		var isPointer, isSlice bool
+		if tf.Kind() == reflect.Slice && tf.Elem().Kind() != reflect.Uint8 {
+			isSlice = true
+			tf = tf.Elem()
+		}
+		if tf.Kind() == reflect.Ptr {
+			isPointer = true
+			tf = tf.Elem()
+		}
+		if isPointer && isSlice && tf.Kind() != reflect.Struct {
+			panic(fmt.Sprintf("%v.%s cannot be a slice of pointers to primitive types", t, f.Name))
+		}
+
+		switch tf.Kind() {
+		case reflect.Struct:
+			switch {
+			case !isPointer:
+				panic(fmt.Sprintf("%v.%s cannot be a direct struct value", t, f.Name))
+			case isSlice: // E.g., []*pb.T
+				di := getDiscardInfo(tf)
+				dfi.discard = func(src pointer) {
+					sps := src.getPointerSlice()
+					for _, sp := range sps {
+						if !sp.isNil() {
+							di.discard(sp)
+						}
+					}
+				}
+			default: // E.g., *pb.T
+				di := getDiscardInfo(tf)
+				dfi.discard = func(src pointer) {
+					sp := src.getPointer()
+					if !sp.isNil() {
+						di.discard(sp)
+					}
+				}
+			}
+		case reflect.Map:
+			switch {
+			case isPointer || isSlice:
+				panic(fmt.Sprintf("%v.%s cannot be a pointer to a map or a slice of map values", t, f.Name))
+			default: // E.g., map[K]V
+				if tf.Elem().Kind() == reflect.Ptr { // Proto struct (e.g., *T)
+					dfi.discard = func(src pointer) {
+						sm := src.asPointerTo(tf).Elem()
+						if sm.Len() == 0 {
+							return
+						}
+						for _, key := range sm.MapKeys() {
+							val := sm.MapIndex(key)
+							DiscardUnknown(val.Interface().(Message))
+						}
+					}
+				} else {
+					dfi.discard = func(pointer) {} // Noop
+				}
+			}
+		case reflect.Interface:
+			// Must be oneof field.
+			switch {
+			case isPointer || isSlice:
+				panic(fmt.Sprintf("%v.%s cannot be a pointer to a interface or a slice of interface values", t, f.Name))
+			default: // E.g., interface{}
+				// TODO: Make this faster?
+				dfi.discard = func(src pointer) {
+					su := src.asPointerTo(tf).Elem()
+					if !su.IsNil() {
+						sv := su.Elem().Elem().Field(0)
+						if sv.Kind() == reflect.Ptr && sv.IsNil() {
+							return
+						}
+						switch sv.Type().Kind() {
+						case reflect.Ptr: // Proto struct (e.g., *T)
+							DiscardUnknown(sv.Interface().(Message))
+						}
+					}
+				}
+			}
+		default:
+			continue
+		}
+		di.fields = append(di.fields, dfi)
+	}
+
+	di.unrecognized = invalidField
+	if f, ok := t.FieldByName("XXX_unrecognized"); ok {
+		if f.Type != reflect.TypeOf([]byte{}) {
+			panic("expected XXX_unrecognized to be of type []byte")
+		}
+		di.unrecognized = toField(&f)
+	}
+
+	atomic.StoreInt32(&di.initialized, 1)
+}
+
+func discardLegacy(m Message) {
+	v := reflect.ValueOf(m)
+	if v.Kind() != reflect.Ptr || v.IsNil() {
+		return
+	}
+	v = v.Elem()
+	if v.Kind() != reflect.Struct {
+		return
+	}
+	t := v.Type()
+
+	for i := 0; i < v.NumField(); i++ {
+		f := t.Field(i)
+		if strings.HasPrefix(f.Name, "XXX_") {
+			continue
+		}
+		vf := v.Field(i)
+		tf := f.Type
+
+		// Unwrap tf to get its most basic type.
+		var isPointer, isSlice bool
+		if tf.Kind() == reflect.Slice && tf.Elem().Kind() != reflect.Uint8 {
+			isSlice = true
+			tf = tf.Elem()
+		}
+		if tf.Kind() == reflect.Ptr {
+			isPointer = true
+			tf = tf.Elem()
+		}
+		if isPointer && isSlice && tf.Kind() != reflect.Struct {
+			panic(fmt.Sprintf("%T.%s cannot be a slice of pointers to primitive types", m, f.Name))
+		}
+
+		switch tf.Kind() {
+		case reflect.Struct:
+			switch {
+			case !isPointer:
+				panic(fmt.Sprintf("%T.%s cannot be a direct struct value", m, f.Name))
+			case isSlice: // E.g., []*pb.T
+				for j := 0; j < vf.Len(); j++ {
+					discardLegacy(vf.Index(j).Interface().(Message))
+				}
+			default: // E.g., *pb.T
+				discardLegacy(vf.Interface().(Message))
+			}
+		case reflect.Map:
+			switch {
+			case isPointer || isSlice:
+				panic(fmt.Sprintf("%T.%s cannot be a pointer to a map or a slice of map values", m, f.Name))
+			default: // E.g., map[K]V
+				tv := vf.Type().Elem()
+				if tv.Kind() == reflect.Ptr && tv.Implements(protoMessageType) { // Proto struct (e.g., *T)
+					for _, key := range vf.MapKeys() {
+						val := vf.MapIndex(key)
+						discardLegacy(val.Interface().(Message))
+					}
+				}
+			}
+		case reflect.Interface:
+			// Must be oneof field.
+			switch {
+			case isPointer || isSlice:
+				panic(fmt.Sprintf("%T.%s cannot be a pointer to a interface or a slice of interface values", m, f.Name))
+			default: // E.g., test_proto.isCommunique_Union interface
+				if !vf.IsNil() && f.Tag.Get("protobuf_oneof") != "" {
+					vf = vf.Elem() // E.g., *test_proto.Communique_Msg
+					if !vf.IsNil() {
+						vf = vf.Elem()   // E.g., test_proto.Communique_Msg
+						vf = vf.Field(0) // E.g., Proto struct (e.g., *T) or primitive value
+						if vf.Kind() == reflect.Ptr {
+							discardLegacy(vf.Interface().(Message))
+						}
+					}
+				}
+			}
+		}
+	}
+
+	if vf := v.FieldByName("XXX_unrecognized"); vf.IsValid() {
+		if vf.Type() != reflect.TypeOf([]byte{}) {
+			panic("expected XXX_unrecognized to be of type []byte")
+		}
+		vf.Set(reflect.ValueOf([]byte(nil)))
+	}
+
+	// For proto2 messages, only discard unknown fields in message extensions
+	// that have been accessed via GetExtension.
+	if em, err := extendable(m); err == nil {
+		// Ignore lock since discardLegacy is not concurrency safe.
+		emm, _ := em.extensionsRead()
+		for _, mx := range emm {
+			if m, ok := mx.value.(Message); ok {
+				discardLegacy(m)
+			}
+		}
+	}
+}

log/vendor/github.com/golang/protobuf/proto/encode.go

@@ -0,0 +1,203 @@
+// 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.
+
+package proto
+
+/*
+ * Routines for encoding data into the wire format for protocol buffers.
+ */
+
+import (
+	"errors"
+	"reflect"
+)
+
+var (
+	// errRepeatedHasNil is the error returned if Marshal is called with
+	// a struct with a repeated field containing a nil element.
+	errRepeatedHasNil = errors.New("proto: repeated field has nil element")
+
+	// errOneofHasNil is the error returned if Marshal is called with
+	// a struct with a oneof field containing a nil element.
+	errOneofHasNil = errors.New("proto: oneof field has nil value")
+
+	// ErrNil is the error returned if Marshal is called with nil.
+	ErrNil = errors.New("proto: Marshal called with nil")
+
+	// ErrTooLarge is the error returned if Marshal is called with a
+	// message that encodes to >2GB.
+	ErrTooLarge = errors.New("proto: message encodes to over 2 GB")
+)
+
+// The fundamental encoders that put bytes on the wire.
+// Those that take integer types all accept uint64 and are
+// therefore of type valueEncoder.
+
+const maxVarintBytes = 10 // maximum length of a varint
+
+// EncodeVarint returns the varint encoding of x.
+// This is the format for the
+// int32, int64, uint32, uint64, bool, and enum
+// protocol buffer types.
+// Not used by the package itself, but helpful to clients
+// wishing to use the same encoding.
+func EncodeVarint(x uint64) []byte {
+	var buf [maxVarintBytes]byte
+	var n int
+	for n = 0; x > 127; n++ {
+		buf[n] = 0x80 | uint8(x&0x7F)
+		x >>= 7
+	}
+	buf[n] = uint8(x)
+	n++
+	return buf[0:n]
+}
+
+// EncodeVarint writes a varint-encoded integer to the Buffer.
+// This is the format for the
+// int32, int64, uint32, uint64, bool, and enum
+// protocol buffer types.
+func (p *Buffer) EncodeVarint(x uint64) error {
+	for x >= 1<<7 {
+		p.buf = append(p.buf, uint8(x&0x7f|0x80))
+		x >>= 7
+	}
+	p.buf = append(p.buf, uint8(x))
+	return nil
+}
+
+// SizeVarint returns the varint encoding size of an integer.
+func SizeVarint(x uint64) int {
+	switch {
+	case x < 1<<7:
+		return 1
+	case x < 1<<14:
+		return 2
+	case x < 1<<21:
+		return 3
+	case x < 1<<28:
+		return 4
+	case x < 1<<35:
+		return 5
+	case x < 1<<42:
+		return 6
+	case x < 1<<49:
+		return 7
+	case x < 1<<56:
+		return 8
+	case x < 1<<63:
+		return 9
+	}
+	return 10
+}
+
+// EncodeFixed64 writes a 64-bit integer to the Buffer.
+// This is the format for the
+// fixed64, sfixed64, and double protocol buffer types.
+func (p *Buffer) EncodeFixed64(x uint64) error {
+	p.buf = append(p.buf,
+		uint8(x),
+		uint8(x>>8),
+		uint8(x>>16),
+		uint8(x>>24),
+		uint8(x>>32),
+		uint8(x>>40),
+		uint8(x>>48),
+		uint8(x>>56))
+	return nil
+}
+
+// EncodeFixed32 writes a 32-bit integer to the Buffer.
+// This is the format for the
+// fixed32, sfixed32, and float protocol buffer types.
+func (p *Buffer) EncodeFixed32(x uint64) error {
+	p.buf = append(p.buf,
+		uint8(x),
+		uint8(x>>8),
+		uint8(x>>16),
+		uint8(x>>24))
+	return nil
+}
+
+// EncodeZigzag64 writes a zigzag-encoded 64-bit integer
+// to the Buffer.
+// This is the format used for the sint64 protocol buffer type.
+func (p *Buffer) EncodeZigzag64(x uint64) error {
+	// use signed number to get arithmetic right shift.
+	return p.EncodeVarint(uint64((x << 1) ^ uint64((int64(x) >> 63))))
+}
+
+// EncodeZigzag32 writes a zigzag-encoded 32-bit integer
+// to the Buffer.
+// This is the format used for the sint32 protocol buffer type.
+func (p *Buffer) EncodeZigzag32(x uint64) error {
+	// use signed number to get arithmetic right shift.
+	return p.EncodeVarint(uint64((uint32(x) << 1) ^ uint32((int32(x) >> 31))))
+}
+
+// EncodeRawBytes writes a count-delimited byte buffer to the Buffer.
+// This is the format used for the bytes protocol buffer
+// type and for embedded messages.
+func (p *Buffer) EncodeRawBytes(b []byte) error {
+	p.EncodeVarint(uint64(len(b)))
+	p.buf = append(p.buf, b...)
+	return nil
+}
+
+// EncodeStringBytes writes an encoded string to the Buffer.
+// This is the format used for the proto2 string type.
+func (p *Buffer) EncodeStringBytes(s string) error {
+	p.EncodeVarint(uint64(len(s)))
+	p.buf = append(p.buf, s...)
+	return nil
+}
+
+// Marshaler is the interface representing objects that can marshal themselves.
+type Marshaler interface {
+	Marshal() ([]byte, error)
+}
+
+// EncodeMessage writes the protocol buffer to the Buffer,
+// prefixed by a varint-encoded length.
+func (p *Buffer) EncodeMessage(pb Message) error {
+	siz := Size(pb)
+	p.EncodeVarint(uint64(siz))
+	return p.Marshal(pb)
+}
+
+// All protocol buffer fields are nillable, but be careful.
+func isNil(v reflect.Value) bool {
+	switch v.Kind() {
+	case reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
+		return v.IsNil()
+	}
+	return false
+}

log/vendor/github.com/golang/protobuf/proto/equal.go

@@ -0,0 +1,301 @@
+// Go support for Protocol Buffers - Google's data interchange format
+//
+// Copyright 2011 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.
+
+// Protocol buffer comparison.
+
+package proto
+
+import (
+	"bytes"
+	"log"
+	"reflect"
+	"strings"
+)
+
+/*
+Equal returns true iff protocol buffers a and b are equal.
+The arguments must both be pointers to protocol buffer structs.
+
+Equality is defined in this way:
+  - Two messages are equal iff they are the same type,
+    corresponding fields are equal, unknown field sets
+    are equal, and extensions sets are equal.
+  - Two set scalar fields are equal iff their values are equal.
+    If the fields are of a floating-point type, remember that
+    NaN != x for all x, including NaN. If the message is defined
+    in a proto3 .proto file, fields are not "set"; specifically,
+    zero length proto3 "bytes" fields are equal (nil == {}).
+  - Two repeated fields are equal iff their lengths are the same,
+    and their corresponding elements are equal. Note a "bytes" field,
+    although represented by []byte, is not a repeated field and the
+    rule for the scalar fields described above applies.
+  - Two unset fields are equal.
+  - Two unknown field sets are equal if their current
+    encoded state is equal.
+  - Two extension sets are equal iff they have corresponding
+    elements that are pairwise equal.
+  - Two map fields are equal iff their lengths are the same,
+    and they contain the same set of elements. Zero-length map
+    fields are equal.
+  - Every other combination of things are not equal.
+
+The return value is undefined if a and b are not protocol buffers.
+*/
+func Equal(a, b Message) bool {
+	if a == nil || b == nil {
+		return a == b
+	}
+	v1, v2 := reflect.ValueOf(a), reflect.ValueOf(b)
+	if v1.Type() != v2.Type() {
+		return false
+	}
+	if v1.Kind() == reflect.Ptr {
+		if v1.IsNil() {
+			return v2.IsNil()
+		}
+		if v2.IsNil() {
+			return false
+		}
+		v1, v2 = v1.Elem(), v2.Elem()
+	}
+	if v1.Kind() != reflect.Struct {
+		return false
+	}
+	return equalStruct(v1, v2)
+}
+
+// v1 and v2 are known to have the same type.
+func equalStruct(v1, v2 reflect.Value) bool {
+	sprop := GetProperties(v1.Type())
+	for i := 0; i < v1.NumField(); i++ {
+		f := v1.Type().Field(i)
+		if strings.HasPrefix(f.Name, "XXX_") {
+			continue
+		}
+		f1, f2 := v1.Field(i), v2.Field(i)
+		if f.Type.Kind() == reflect.Ptr {
+			if n1, n2 := f1.IsNil(), f2.IsNil(); n1 && n2 {
+				// both unset
+				continue
+			} else if n1 != n2 {
+				// set/unset mismatch
+				return false
+			}
+			f1, f2 = f1.Elem(), f2.Elem()
+		}
+		if !equalAny(f1, f2, sprop.Prop[i]) {
+			return false
+		}
+	}
+
+	if em1 := v1.FieldByName("XXX_InternalExtensions"); em1.IsValid() {
+		em2 := v2.FieldByName("XXX_InternalExtensions")
+		if !equalExtensions(v1.Type(), em1.Interface().(XXX_InternalExtensions), em2.Interface().(XXX_InternalExtensions)) {
+			return false
+		}
+	}
+
+	if em1 := v1.FieldByName("XXX_extensions"); em1.IsValid() {
+		em2 := v2.FieldByName("XXX_extensions")
+		if !equalExtMap(v1.Type(), em1.Interface().(map[int32]Extension), em2.Interface().(map[int32]Extension)) {
+			return false
+		}
+	}
+
+	uf := v1.FieldByName("XXX_unrecognized")
+	if !uf.IsValid() {
+		return true
+	}
+
+	u1 := uf.Bytes()
+	u2 := v2.FieldByName("XXX_unrecognized").Bytes()
+	return bytes.Equal(u1, u2)
+}
+
+// v1 and v2 are known to have the same type.
+// prop may be nil.
+func equalAny(v1, v2 reflect.Value, prop *Properties) bool {
+	if v1.Type() == protoMessageType {
+		m1, _ := v1.Interface().(Message)
+		m2, _ := v2.Interface().(Message)
+		return Equal(m1, m2)
+	}
+	switch v1.Kind() {
+	case reflect.Bool:
+		return v1.Bool() == v2.Bool()
+	case reflect.Float32, reflect.Float64:
+		return v1.Float() == v2.Float()
+	case reflect.Int32, reflect.Int64:
+		return v1.Int() == v2.Int()
+	case reflect.Interface:
+		// Probably a oneof field; compare the inner values.
+		n1, n2 := v1.IsNil(), v2.IsNil()
+		if n1 || n2 {
+			return n1 == n2
+		}
+		e1, e2 := v1.Elem(), v2.Elem()
+		if e1.Type() != e2.Type() {
+			return false
+		}
+		return equalAny(e1, e2, nil)
+	case reflect.Map:
+		if v1.Len() != v2.Len() {
+			return false
+		}
+		for _, key := range v1.MapKeys() {
+			val2 := v2.MapIndex(key)
+			if !val2.IsValid() {
+				// This key was not found in the second map.
+				return false
+			}
+			if !equalAny(v1.MapIndex(key), val2, nil) {
+				return false
+			}
+		}
+		return true
+	case reflect.Ptr:
+		// Maps may have nil values in them, so check for nil.
+		if v1.IsNil() && v2.IsNil() {
+			return true
+		}
+		if v1.IsNil() != v2.IsNil() {
+			return false
+		}
+		return equalAny(v1.Elem(), v2.Elem(), prop)
+	case reflect.Slice:
+		if v1.Type().Elem().Kind() == reflect.Uint8 {
+			// short circuit: []byte
+
+			// Edge case: if this is in a proto3 message, a zero length
+			// bytes field is considered the zero value.
+			if prop != nil && prop.proto3 && v1.Len() == 0 && v2.Len() == 0 {
+				return true
+			}
+			if v1.IsNil() != v2.IsNil() {
+				return false
+			}
+			return bytes.Equal(v1.Interface().([]byte), v2.Interface().([]byte))
+		}
+
+		if v1.Len() != v2.Len() {
+			return false
+		}
+		for i := 0; i < v1.Len(); i++ {
+			if !equalAny(v1.Index(i), v2.Index(i), prop) {
+				return false
+			}
+		}
+		return true
+	case reflect.String:
+		return v1.Interface().(string) == v2.Interface().(string)
+	case reflect.Struct:
+		return equalStruct(v1, v2)
+	case reflect.Uint32, reflect.Uint64:
+		return v1.Uint() == v2.Uint()
+	}
+
+	// unknown type, so not a protocol buffer
+	log.Printf("proto: don't know how to compare %v", v1)
+	return false
+}
+
+// base is the struct type that the extensions are based on.
+// x1 and x2 are InternalExtensions.
+func equalExtensions(base reflect.Type, x1, x2 XXX_InternalExtensions) bool {
+	em1, _ := x1.extensionsRead()
+	em2, _ := x2.extensionsRead()
+	return equalExtMap(base, em1, em2)
+}
+
+func equalExtMap(base reflect.Type, em1, em2 map[int32]Extension) bool {
+	if len(em1) != len(em2) {
+		return false
+	}
+
+	for extNum, e1 := range em1 {
+		e2, ok := em2[extNum]
+		if !ok {
+			return false
+		}
+
+		m1 := extensionAsLegacyType(e1.value)
+		m2 := extensionAsLegacyType(e2.value)
+
+		if m1 == nil && m2 == nil {
+			// Both have only encoded form.
+			if bytes.Equal(e1.enc, e2.enc) {
+				continue
+			}
+			// The bytes are different, but the extensions might still be
+			// equal. We need to decode them to compare.
+		}
+
+		if m1 != nil && m2 != nil {
+			// Both are unencoded.
+			if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2), nil) {
+				return false
+			}
+			continue
+		}
+
+		// At least one is encoded. To do a semantically correct comparison
+		// we need to unmarshal them first.
+		var desc *ExtensionDesc
+		if m := extensionMaps[base]; m != nil {
+			desc = m[extNum]
+		}
+		if desc == nil {
+			// If both have only encoded form and the bytes are the same,
+			// it is handled above. We get here when the bytes are different.
+			// We don't know how to decode it, so just compare them as byte
+			// slices.
+			log.Printf("proto: don't know how to compare extension %d of %v", extNum, base)
+			return false
+		}
+		var err error
+		if m1 == nil {
+			m1, err = decodeExtension(e1.enc, desc)
+		}
+		if m2 == nil && err == nil {
+			m2, err = decodeExtension(e2.enc, desc)
+		}
+		if err != nil {
+			// The encoded form is invalid.
+			log.Printf("proto: badly encoded extension %d of %v: %v", extNum, base, err)
+			return false
+		}
+		if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2), nil) {
+			return false
+		}
+	}
+
+	return true
+}

log/vendor/github.com/golang/protobuf/proto/extensions.go

@@ -0,0 +1,607 @@
+// 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.
+
+package proto
+
+/*
+ * Types and routines for supporting protocol buffer extensions.
+ */
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"reflect"
+	"strconv"
+	"sync"
+)
+
+// ErrMissingExtension is the error returned by GetExtension if the named extension is not in the message.
+var ErrMissingExtension = errors.New("proto: missing extension")
+
+// ExtensionRange represents a range of message extensions for a protocol buffer.
+// Used in code generated by the protocol compiler.
+type ExtensionRange struct {
+	Start, End int32 // both inclusive
+}
+
+// extendableProto is an interface implemented by any protocol buffer generated by the current
+// proto compiler that may be extended.
+type extendableProto interface {
+	Message
+	ExtensionRangeArray() []ExtensionRange
+	extensionsWrite() map[int32]Extension
+	extensionsRead() (map[int32]Extension, sync.Locker)
+}
+
+// extendableProtoV1 is an interface implemented by a protocol buffer generated by the previous
+// version of the proto compiler that may be extended.
+type extendableProtoV1 interface {
+	Message
+	ExtensionRangeArray() []ExtensionRange
+	ExtensionMap() map[int32]Extension
+}
+
+// extensionAdapter is a wrapper around extendableProtoV1 that implements extendableProto.
+type extensionAdapter struct {
+	extendableProtoV1
+}
+
+func (e extensionAdapter) extensionsWrite() map[int32]Extension {
+	return e.ExtensionMap()
+}
+
+func (e extensionAdapter) extensionsRead() (map[int32]Extension, sync.Locker) {
+	return e.ExtensionMap(), notLocker{}
+}
+
+// notLocker is a sync.Locker whose Lock and Unlock methods are nops.
+type notLocker struct{}
+
+func (n notLocker) Lock()   {}
+func (n notLocker) Unlock() {}
+
+// extendable returns the extendableProto interface for the given generated proto message.
+// If the proto message has the old extension format, it returns a wrapper that implements
+// the extendableProto interface.
+func extendable(p interface{}) (extendableProto, error) {
+	switch p := p.(type) {
+	case extendableProto:
+		if isNilPtr(p) {
+			return nil, fmt.Errorf("proto: nil %T is not extendable", p)
+		}
+		return p, nil
+	case extendableProtoV1:
+		if isNilPtr(p) {
+			return nil, fmt.Errorf("proto: nil %T is not extendable", p)
+		}
+		return extensionAdapter{p}, nil
+	}
+	// Don't allocate a specific error containing %T:
+	// this is the hot path for Clone and MarshalText.
+	return nil, errNotExtendable
+}
+
+var errNotExtendable = errors.New("proto: not an extendable proto.Message")
+
+func isNilPtr(x interface{}) bool {
+	v := reflect.ValueOf(x)
+	return v.Kind() == reflect.Ptr && v.IsNil()
+}
+
+// XXX_InternalExtensions is an internal representation of proto extensions.
+//
+// Each generated message struct type embeds an anonymous XXX_InternalExtensions field,
+// thus gaining the unexported 'extensions' method, which can be called only from the proto package.
+//
+// The methods of XXX_InternalExtensions are not concurrency safe in general,
+// but calls to logically read-only methods such as has and get may be executed concurrently.
+type XXX_InternalExtensions struct {
+	// The struct must be indirect so that if a user inadvertently copies a
+	// generated message and its embedded XXX_InternalExtensions, they
+	// avoid the mayhem of a copied mutex.
+	//
+	// The mutex serializes all logically read-only operations to p.extensionMap.
+	// It is up to the client to ensure that write operations to p.extensionMap are
+	// mutually exclusive with other accesses.
+	p *struct {
+		mu           sync.Mutex
+		extensionMap map[int32]Extension
+	}
+}
+
+// extensionsWrite returns the extension map, creating it on first use.
+func (e *XXX_InternalExtensions) extensionsWrite() map[int32]Extension {
+	if e.p == nil {
+		e.p = new(struct {
+			mu           sync.Mutex
+			extensionMap map[int32]Extension
+		})
+		e.p.extensionMap = make(map[int32]Extension)
+	}
+	return e.p.extensionMap
+}
+
+// extensionsRead returns the extensions map for read-only use.  It may be nil.
+// The caller must hold the returned mutex's lock when accessing Elements within the map.
+func (e *XXX_InternalExtensions) extensionsRead() (map[int32]Extension, sync.Locker) {
+	if e.p == nil {
+		return nil, nil
+	}
+	return e.p.extensionMap, &e.p.mu
+}
+
+// ExtensionDesc represents an extension specification.
+// Used in generated code from the protocol compiler.
+type ExtensionDesc struct {
+	ExtendedType  Message     // nil pointer to the type that is being extended
+	ExtensionType interface{} // nil pointer to the extension type
+	Field         int32       // field number
+	Name          string      // fully-qualified name of extension, for text formatting
+	Tag           string      // protobuf tag style
+	Filename      string      // name of the file in which the extension is defined
+}
+
+func (ed *ExtensionDesc) repeated() bool {
+	t := reflect.TypeOf(ed.ExtensionType)
+	return t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8
+}
+
+// Extension represents an extension in a message.
+type Extension struct {
+	// When an extension is stored in a message using SetExtension
+	// only desc and value are set. When the message is marshaled
+	// enc will be set to the encoded form of the message.
+	//
+	// When a message is unmarshaled and contains extensions, each
+	// extension will have only enc set. When such an extension is
+	// accessed using GetExtension (or GetExtensions) desc and value
+	// will be set.
+	desc *ExtensionDesc
+
+	// value is a concrete value for the extension field. Let the type of
+	// desc.ExtensionType be the "API type" and the type of Extension.value
+	// be the "storage type". The API type and storage type are the same except:
+	//	* For scalars (except []byte), the API type uses *T,
+	//	while the storage type uses T.
+	//	* For repeated fields, the API type uses []T, while the storage type
+	//	uses *[]T.
+	//
+	// The reason for the divergence is so that the storage type more naturally
+	// matches what is expected of when retrieving the values through the
+	// protobuf reflection APIs.
+	//
+	// The value may only be populated if desc is also populated.
+	value interface{}
+
+	// enc is the raw bytes for the extension field.
+	enc []byte
+}
+
+// SetRawExtension is for testing only.
+func SetRawExtension(base Message, id int32, b []byte) {
+	epb, err := extendable(base)
+	if err != nil {
+		return
+	}
+	extmap := epb.extensionsWrite()
+	extmap[id] = Extension{enc: b}
+}
+
+// isExtensionField returns true iff the given field number is in an extension range.
+func isExtensionField(pb extendableProto, field int32) bool {
+	for _, er := range pb.ExtensionRangeArray() {
+		if er.Start <= field && field <= er.End {
+			return true
+		}
+	}
+	return false
+}
+
+// checkExtensionTypes checks that the given extension is valid for pb.
+func checkExtensionTypes(pb extendableProto, extension *ExtensionDesc) error {
+	var pbi interface{} = pb
+	// Check the extended type.
+	if ea, ok := pbi.(extensionAdapter); ok {
+		pbi = ea.extendableProtoV1
+	}
+	if a, b := reflect.TypeOf(pbi), reflect.TypeOf(extension.ExtendedType); a != b {
+		return fmt.Errorf("proto: bad extended type; %v does not extend %v", b, a)
+	}
+	// Check the range.
+	if !isExtensionField(pb, extension.Field) {
+		return errors.New("proto: bad extension number; not in declared ranges")
+	}
+	return nil
+}
+
+// extPropKey is sufficient to uniquely identify an extension.
+type extPropKey struct {
+	base  reflect.Type
+	field int32
+}
+
+var extProp = struct {
+	sync.RWMutex
+	m map[extPropKey]*Properties
+}{
+	m: make(map[extPropKey]*Properties),
+}
+
+func extensionProperties(ed *ExtensionDesc) *Properties {
+	key := extPropKey{base: reflect.TypeOf(ed.ExtendedType), field: ed.Field}
+
+	extProp.RLock()
+	if prop, ok := extProp.m[key]; ok {
+		extProp.RUnlock()
+		return prop
+	}
+	extProp.RUnlock()
+
+	extProp.Lock()
+	defer extProp.Unlock()
+	// Check again.
+	if prop, ok := extProp.m[key]; ok {
+		return prop
+	}
+
+	prop := new(Properties)
+	prop.Init(reflect.TypeOf(ed.ExtensionType), "unknown_name", ed.Tag, nil)
+	extProp.m[key] = prop
+	return prop
+}
+
+// HasExtension returns whether the given extension is present in pb.
+func HasExtension(pb Message, extension *ExtensionDesc) bool {
+	// TODO: Check types, field numbers, etc.?
+	epb, err := extendable(pb)
+	if err != nil {
+		return false
+	}
+	extmap, mu := epb.extensionsRead()
+	if extmap == nil {
+		return false
+	}
+	mu.Lock()
+	_, ok := extmap[extension.Field]
+	mu.Unlock()
+	return ok
+}
+
+// ClearExtension removes the given extension from pb.
+func ClearExtension(pb Message, extension *ExtensionDesc) {
+	epb, err := extendable(pb)
+	if err != nil {
+		return
+	}
+	// TODO: Check types, field numbers, etc.?
+	extmap := epb.extensionsWrite()
+	delete(extmap, extension.Field)
+}
+
+// GetExtension retrieves a proto2 extended field from pb.
+//
+// If the descriptor is type complete (i.e., ExtensionDesc.ExtensionType is non-nil),
+// then GetExtension parses the encoded field and returns a Go value of the specified type.
+// If the field is not present, then the default value is returned (if one is specified),
+// otherwise ErrMissingExtension is reported.
+//
+// If the descriptor is not type complete (i.e., ExtensionDesc.ExtensionType is nil),
+// then GetExtension returns the raw encoded bytes of the field extension.
+func GetExtension(pb Message, extension *ExtensionDesc) (interface{}, error) {
+	epb, err := extendable(pb)
+	if err != nil {
+		return nil, err
+	}
+
+	if extension.ExtendedType != nil {
+		// can only check type if this is a complete descriptor
+		if err := checkExtensionTypes(epb, extension); err != nil {
+			return nil, err
+		}
+	}
+
+	emap, mu := epb.extensionsRead()
+	if emap == nil {
+		return defaultExtensionValue(extension)
+	}
+	mu.Lock()
+	defer mu.Unlock()
+	e, ok := emap[extension.Field]
+	if !ok {
+		// defaultExtensionValue returns the default value or
+		// ErrMissingExtension if there is no default.
+		return defaultExtensionValue(extension)
+	}
+
+	if e.value != nil {
+		// Already decoded. Check the descriptor, though.
+		if e.desc != extension {
+			// This shouldn't happen. If it does, it means that
+			// GetExtension was called twice with two different
+			// descriptors with the same field number.
+			return nil, errors.New("proto: descriptor conflict")
+		}
+		return extensionAsLegacyType(e.value), nil
+	}
+
+	if extension.ExtensionType == nil {
+		// incomplete descriptor
+		return e.enc, nil
+	}
+
+	v, err := decodeExtension(e.enc, extension)
+	if err != nil {
+		return nil, err
+	}
+
+	// Remember the decoded version and drop the encoded version.
+	// That way it is safe to mutate what we return.
+	e.value = extensionAsStorageType(v)
+	e.desc = extension
+	e.enc = nil
+	emap[extension.Field] = e
+	return extensionAsLegacyType(e.value), nil
+}
+
+// defaultExtensionValue returns the default value for extension.
+// If no default for an extension is defined ErrMissingExtension is returned.
+func defaultExtensionValue(extension *ExtensionDesc) (interface{}, error) {
+	if extension.ExtensionType == nil {
+		// incomplete descriptor, so no default
+		return nil, ErrMissingExtension
+	}
+
+	t := reflect.TypeOf(extension.ExtensionType)
+	props := extensionProperties(extension)
+
+	sf, _, err := fieldDefault(t, props)
+	if err != nil {
+		return nil, err
+	}
+
+	if sf == nil || sf.value == nil {
+		// There is no default value.
+		return nil, ErrMissingExtension
+	}
+
+	if t.Kind() != reflect.Ptr {
+		// We do not need to return a Ptr, we can directly return sf.value.
+		return sf.value, nil
+	}
+
+	// We need to return an interface{} that is a pointer to sf.value.
+	value := reflect.New(t).Elem()
+	value.Set(reflect.New(value.Type().Elem()))
+	if sf.kind == reflect.Int32 {
+		// We may have an int32 or an enum, but the underlying data is int32.
+		// Since we can't set an int32 into a non int32 reflect.value directly
+		// set it as a int32.
+		value.Elem().SetInt(int64(sf.value.(int32)))
+	} else {
+		value.Elem().Set(reflect.ValueOf(sf.value))
+	}
+	return value.Interface(), nil
+}
+
+// decodeExtension decodes an extension encoded in b.
+func decodeExtension(b []byte, extension *ExtensionDesc) (interface{}, error) {
+	t := reflect.TypeOf(extension.ExtensionType)
+	unmarshal := typeUnmarshaler(t, extension.Tag)
+
+	// t is a pointer to a struct, pointer to basic type or a slice.
+	// Allocate space to store the pointer/slice.
+	value := reflect.New(t).Elem()
+
+	var err error
+	for {
+		x, n := decodeVarint(b)
+		if n == 0 {
+			return nil, io.ErrUnexpectedEOF
+		}
+		b = b[n:]
+		wire := int(x) & 7
+
+		b, err = unmarshal(b, valToPointer(value.Addr()), wire)
+		if err != nil {
+			return nil, err
+		}
+
+		if len(b) == 0 {
+			break
+		}
+	}
+	return value.Interface(), nil
+}
+
+// GetExtensions returns a slice of the extensions present in pb that are also listed in es.
+// The returned slice has the same length as es; missing extensions will appear as nil elements.
+func GetExtensions(pb Message, es []*ExtensionDesc) (extensions []interface{}, err error) {
+	epb, err := extendable(pb)
+	if err != nil {
+		return nil, err
+	}
+	extensions = make([]interface{}, len(es))
+	for i, e := range es {
+		extensions[i], err = GetExtension(epb, e)
+		if err == ErrMissingExtension {
+			err = nil
+		}
+		if err != nil {
+			return
+		}
+	}
+	return
+}
+
+// ExtensionDescs returns a new slice containing pb's extension descriptors, in undefined order.
+// For non-registered extensions, ExtensionDescs returns an incomplete descriptor containing
+// just the Field field, which defines the extension's field number.
+func ExtensionDescs(pb Message) ([]*ExtensionDesc, error) {
+	epb, err := extendable(pb)
+	if err != nil {
+		return nil, err
+	}
+	registeredExtensions := RegisteredExtensions(pb)
+
+	emap, mu := epb.extensionsRead()
+	if emap == nil {
+		return nil, nil
+	}
+	mu.Lock()
+	defer mu.Unlock()
+	extensions := make([]*ExtensionDesc, 0, len(emap))
+	for extid, e := range emap {
+		desc := e.desc
+		if desc == nil {
+			desc = registeredExtensions[extid]
+			if desc == nil {
+				desc = &ExtensionDesc{Field: extid}
+			}
+		}
+
+		extensions = append(extensions, desc)
+	}
+	return extensions, nil
+}
+
+// SetExtension sets the specified extension of pb to the specified value.
+func SetExtension(pb Message, extension *ExtensionDesc, value interface{}) error {
+	epb, err := extendable(pb)
+	if err != nil {
+		return err
+	}
+	if err := checkExtensionTypes(epb, extension); err != nil {
+		return err
+	}
+	typ := reflect.TypeOf(extension.ExtensionType)
+	if typ != reflect.TypeOf(value) {
+		return fmt.Errorf("proto: bad extension value type. got: %T, want: %T", value, extension.ExtensionType)
+	}
+	// nil extension values need to be caught early, because the
+	// encoder can't distinguish an ErrNil due to a nil extension
+	// from an ErrNil due to a missing field. Extensions are
+	// always optional, so the encoder would just swallow the error
+	// and drop all the extensions from the encoded message.
+	if reflect.ValueOf(value).IsNil() {
+		return fmt.Errorf("proto: SetExtension called with nil value of type %T", value)
+	}
+
+	extmap := epb.extensionsWrite()
+	extmap[extension.Field] = Extension{desc: extension, value: extensionAsStorageType(value)}
+	return nil
+}
+
+// ClearAllExtensions clears all extensions from pb.
+func ClearAllExtensions(pb Message) {
+	epb, err := extendable(pb)
+	if err != nil {
+		return
+	}
+	m := epb.extensionsWrite()
+	for k := range m {
+		delete(m, k)
+	}
+}
+
+// A global registry of extensions.
+// The generated code will register the generated descriptors by calling RegisterExtension.
+
+var extensionMaps = make(map[reflect.Type]map[int32]*ExtensionDesc)
+
+// RegisterExtension is called from the generated code.
+func RegisterExtension(desc *ExtensionDesc) {
+	st := reflect.TypeOf(desc.ExtendedType).Elem()
+	m := extensionMaps[st]
+	if m == nil {
+		m = make(map[int32]*ExtensionDesc)
+		extensionMaps[st] = m
+	}
+	if _, ok := m[desc.Field]; ok {
+		panic("proto: duplicate extension registered: " + st.String() + " " + strconv.Itoa(int(desc.Field)))
+	}
+	m[desc.Field] = desc
+}
+
+// RegisteredExtensions returns a map of the registered extensions of a
+// protocol buffer struct, indexed by the extension number.
+// The argument pb should be a nil pointer to the struct type.
+func RegisteredExtensions(pb Message) map[int32]*ExtensionDesc {
+	return extensionMaps[reflect.TypeOf(pb).Elem()]
+}
+
+// extensionAsLegacyType converts an value in the storage type as the API type.
+// See Extension.value.
+func extensionAsLegacyType(v interface{}) interface{} {
+	switch rv := reflect.ValueOf(v); rv.Kind() {
+	case reflect.Bool, reflect.Int32, reflect.Int64, reflect.Uint32, reflect.Uint64, reflect.Float32, reflect.Float64, reflect.String:
+		// Represent primitive types as a pointer to the value.
+		rv2 := reflect.New(rv.Type())
+		rv2.Elem().Set(rv)
+		v = rv2.Interface()
+	case reflect.Ptr:
+		// Represent slice types as the value itself.
+		switch rv.Type().Elem().Kind() {
+		case reflect.Slice:
+			if rv.IsNil() {
+				v = reflect.Zero(rv.Type().Elem()).Interface()
+			} else {
+				v = rv.Elem().Interface()
+			}
+		}
+	}
+	return v
+}
+
+// extensionAsStorageType converts an value in the API type as the storage type.
+// See Extension.value.
+func extensionAsStorageType(v interface{}) interface{} {
+	switch rv := reflect.ValueOf(v); rv.Kind() {
+	case reflect.Ptr:
+		// Represent slice types as the value itself.
+		switch rv.Type().Elem().Kind() {
+		case reflect.Bool, reflect.Int32, reflect.Int64, reflect.Uint32, reflect.Uint64, reflect.Float32, reflect.Float64, reflect.String:
+			if rv.IsNil() {
+				v = reflect.Zero(rv.Type().Elem()).Interface()
+			} else {
+				v = rv.Elem().Interface()
+			}
+		}
+	case reflect.Slice:
+		// Represent slice types as a pointer to the value.
+		if rv.Type().Elem().Kind() != reflect.Uint8 {
+			rv2 := reflect.New(rv.Type())
+			rv2.Elem().Set(rv)
+			v = rv2.Interface()
+		}
+	}
+	return v
+}

log/vendor/github.com/golang/protobuf/proto/lib.go

@@ -0,0 +1,965 @@
+// 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.
+
+/*
+Package proto converts data structures to and from the wire format of
+protocol buffers.  It works in concert with the Go source code generated
+for .proto files by the protocol compiler.
+
+A summary of the properties of the protocol buffer interface
+for a protocol buffer variable v:
+
+  - Names are turned from camel_case to CamelCase for export.
+  - There are no methods on v to set fields; just treat
+	them as structure fields.
+  - There are getters that return a field's value if set,
+	and return the field's default value if unset.
+	The getters work even if the receiver is a nil message.
+  - The zero value for a struct is its correct initialization state.
+	All desired fields must be set before marshaling.
+  - A Reset() method will restore a protobuf struct to its zero state.
+  - Non-repeated fields are pointers to the values; nil means unset.
+	That is, optional or required field int32 f becomes F *int32.
+  - Repeated fields are slices.
+  - Helper functions are available to aid the setting of fields.
+	msg.Foo = proto.String("hello") // set field
+  - Constants are defined to hold the default values of all fields that
+	have them.  They have the form Default_StructName_FieldName.
+	Because the getter methods handle defaulted values,
+	direct use of these constants should be rare.
+  - Enums are given type names and maps from names to values.
+	Enum values are prefixed by the enclosing message's name, or by the
+	enum's type name if it is a top-level enum. Enum types have a String
+	method, and a Enum method to assist in message construction.
+  - Nested messages, groups and enums have type names prefixed with the name of
+	the surrounding message type.
+  - Extensions are given descriptor names that start with E_,
+	followed by an underscore-delimited list of the nested messages
+	that contain it (if any) followed by the CamelCased name of the
+	extension field itself.  HasExtension, ClearExtension, GetExtension
+	and SetExtension are functions for manipulating extensions.
+  - Oneof field sets are given a single field in their message,
+	with distinguished wrapper types for each possible field value.
+  - Marshal and Unmarshal are functions to encode and decode the wire format.
+
+When the .proto file specifies `syntax="proto3"`, there are some differences:
+
+  - Non-repeated fields of non-message type are values instead of pointers.
+  - Enum types do not get an Enum method.
+
+The simplest way to describe this is to see an example.
+Given file test.proto, containing
+
+	package example;
+
+	enum FOO { X = 17; }
+
+	message Test {
+	  required string label = 1;
+	  optional int32 type = 2 [default=77];
+	  repeated int64 reps = 3;
+	  optional group OptionalGroup = 4 {
+	    required string RequiredField = 5;
+	  }
+	  oneof union {
+	    int32 number = 6;
+	    string name = 7;
+	  }
+	}
+
+The resulting file, test.pb.go, is:
+
+	package example
+
+	import proto "github.com/golang/protobuf/proto"
+	import math "math"
+
+	type FOO int32
+	const (
+		FOO_X FOO = 17
+	)
+	var FOO_name = map[int32]string{
+		17: "X",
+	}
+	var FOO_value = map[string]int32{
+		"X": 17,
+	}
+
+	func (x FOO) Enum() *FOO {
+		p := new(FOO)
+		*p = x
+		return p
+	}
+	func (x FOO) String() string {
+		return proto.EnumName(FOO_name, int32(x))
+	}
+	func (x *FOO) UnmarshalJSON(data []byte) error {
+		value, err := proto.UnmarshalJSONEnum(FOO_value, data)
+		if err != nil {
+			return err
+		}
+		*x = FOO(value)
+		return nil
+	}
+
+	type Test struct {
+		Label         *string             `protobuf:"bytes,1,req,name=label" json:"label,omitempty"`
+		Type          *int32              `protobuf:"varint,2,opt,name=type,def=77" json:"type,omitempty"`
+		Reps          []int64             `protobuf:"varint,3,rep,name=reps" json:"reps,omitempty"`
+		Optionalgroup *Test_OptionalGroup `protobuf:"group,4,opt,name=OptionalGroup" json:"optionalgroup,omitempty"`
+		// Types that are valid to be assigned to Union:
+		//	*Test_Number
+		//	*Test_Name
+		Union            isTest_Union `protobuf_oneof:"union"`
+		XXX_unrecognized []byte       `json:"-"`
+	}
+	func (m *Test) Reset()         { *m = Test{} }
+	func (m *Test) String() string { return proto.CompactTextString(m) }
+	func (*Test) ProtoMessage() {}
+
+	type isTest_Union interface {
+		isTest_Union()
+	}
+
+	type Test_Number struct {
+		Number int32 `protobuf:"varint,6,opt,name=number"`
+	}
+	type Test_Name struct {
+		Name string `protobuf:"bytes,7,opt,name=name"`
+	}
+
+	func (*Test_Number) isTest_Union() {}
+	func (*Test_Name) isTest_Union()   {}
+
+	func (m *Test) GetUnion() isTest_Union {
+		if m != nil {
+			return m.Union
+		}
+		return nil
+	}
+	const Default_Test_Type int32 = 77
+
+	func (m *Test) GetLabel() string {
+		if m != nil && m.Label != nil {
+			return *m.Label
+		}
+		return ""
+	}
+
+	func (m *Test) GetType() int32 {
+		if m != nil && m.Type != nil {
+			return *m.Type
+		}
+		return Default_Test_Type
+	}
+
+	func (m *Test) GetOptionalgroup() *Test_OptionalGroup {
+		if m != nil {
+			return m.Optionalgroup
+		}
+		return nil
+	}
+
+	type Test_OptionalGroup struct {
+		RequiredField *string `protobuf:"bytes,5,req" json:"RequiredField,omitempty"`
+	}
+	func (m *Test_OptionalGroup) Reset()         { *m = Test_OptionalGroup{} }
+	func (m *Test_OptionalGroup) String() string { return proto.CompactTextString(m) }
+
+	func (m *Test_OptionalGroup) GetRequiredField() string {
+		if m != nil && m.RequiredField != nil {
+			return *m.RequiredField
+		}
+		return ""
+	}
+
+	func (m *Test) GetNumber() int32 {
+		if x, ok := m.GetUnion().(*Test_Number); ok {
+			return x.Number
+		}
+		return 0
+	}
+
+	func (m *Test) GetName() string {
+		if x, ok := m.GetUnion().(*Test_Name); ok {
+			return x.Name
+		}
+		return ""
+	}
+
+	func init() {
+		proto.RegisterEnum("example.FOO", FOO_name, FOO_value)
+	}
+
+To create and play with a Test object:
+
+	package main
+
+	import (
+		"log"
+
+		"github.com/golang/protobuf/proto"
+		pb "./example.pb"
+	)
+
+	func main() {
+		test := &pb.Test{
+			Label: proto.String("hello"),
+			Type:  proto.Int32(17),
+			Reps:  []int64{1, 2, 3},
+			Optionalgroup: &pb.Test_OptionalGroup{
+				RequiredField: proto.String("good bye"),
+			},
+			Union: &pb.Test_Name{"fred"},
+		}
+		data, err := proto.Marshal(test)
+		if err != nil {
+			log.Fatal("marshaling error: ", err)
+		}
+		newTest := &pb.Test{}
+		err = proto.Unmarshal(data, newTest)
+		if err != nil {
+			log.Fatal("unmarshaling error: ", err)
+		}
+		// Now test and newTest contain the same data.
+		if test.GetLabel() != newTest.GetLabel() {
+			log.Fatalf("data mismatch %q != %q", test.GetLabel(), newTest.GetLabel())
+		}
+		// Use a type switch to determine which oneof was set.
+		switch u := test.Union.(type) {
+		case *pb.Test_Number: // u.Number contains the number.
+		case *pb.Test_Name: // u.Name contains the string.
+		}
+		// etc.
+	}
+*/
+package proto
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"reflect"
+	"sort"
+	"strconv"
+	"sync"
+)
+
+// RequiredNotSetError is an error type returned by either Marshal or Unmarshal.
+// Marshal reports this when a required field is not initialized.
+// Unmarshal reports this when a required field is missing from the wire data.
+type RequiredNotSetError struct{ field string }
+
+func (e *RequiredNotSetError) Error() string {
+	if e.field == "" {
+		return fmt.Sprintf("proto: required field not set")
+	}
+	return fmt.Sprintf("proto: required field %q not set", e.field)
+}
+func (e *RequiredNotSetError) RequiredNotSet() bool {
+	return true
+}
+
+type invalidUTF8Error struct{ field string }
+
+func (e *invalidUTF8Error) Error() string {
+	if e.field == "" {
+		return "proto: invalid UTF-8 detected"
+	}
+	return fmt.Sprintf("proto: field %q contains invalid UTF-8", e.field)
+}
+func (e *invalidUTF8Error) InvalidUTF8() bool {
+	return true
+}
+
+// errInvalidUTF8 is a sentinel error to identify fields with invalid UTF-8.
+// This error should not be exposed to the external API as such errors should
+// be recreated with the field information.
+var errInvalidUTF8 = &invalidUTF8Error{}
+
+// isNonFatal reports whether the error is either a RequiredNotSet error
+// or a InvalidUTF8 error.
+func isNonFatal(err error) bool {
+	if re, ok := err.(interface{ RequiredNotSet() bool }); ok && re.RequiredNotSet() {
+		return true
+	}
+	if re, ok := err.(interface{ InvalidUTF8() bool }); ok && re.InvalidUTF8() {
+		return true
+	}
+	return false
+}
+
+type nonFatal struct{ E error }
+
+// Merge merges err into nf and reports whether it was successful.
+// Otherwise it returns false for any fatal non-nil errors.
+func (nf *nonFatal) Merge(err error) (ok bool) {
+	if err == nil {
+		return true // not an error
+	}
+	if !isNonFatal(err) {
+		return false // fatal error
+	}
+	if nf.E == nil {
+		nf.E = err // store first instance of non-fatal error
+	}
+	return true
+}
+
+// Message is implemented by generated protocol buffer messages.
+type Message interface {
+	Reset()
+	String() string
+	ProtoMessage()
+}
+
+// A Buffer is a buffer manager for marshaling and unmarshaling
+// protocol buffers.  It may be reused between invocations to
+// reduce memory usage.  It is not necessary to use a Buffer;
+// the global functions Marshal and Unmarshal create a
+// temporary Buffer and are fine for most applications.
+type Buffer struct {
+	buf   []byte // encode/decode byte stream
+	index int    // read point
+
+	deterministic bool
+}
+
+// NewBuffer allocates a new Buffer and initializes its internal data to
+// the contents of the argument slice.
+func NewBuffer(e []byte) *Buffer {
+	return &Buffer{buf: e}
+}
+
+// Reset resets the Buffer, ready for marshaling a new protocol buffer.
+func (p *Buffer) Reset() {
+	p.buf = p.buf[0:0] // for reading/writing
+	p.index = 0        // for reading
+}
+
+// SetBuf replaces the internal buffer with the slice,
+// ready for unmarshaling the contents of the slice.
+func (p *Buffer) SetBuf(s []byte) {
+	p.buf = s
+	p.index = 0
+}
+
+// Bytes returns the contents of the Buffer.
+func (p *Buffer) Bytes() []byte { return p.buf }
+
+// SetDeterministic sets whether to use deterministic serialization.
+//
+// Deterministic serialization guarantees that for a given binary, equal
+// messages will always be serialized to the same bytes. This implies:
+//
+//   - Repeated serialization of a message will return the same bytes.
+//   - Different processes of the same binary (which may be executing on
+//     different machines) will serialize equal messages to the same bytes.
+//
+// Note that the deterministic serialization is NOT canonical across
+// languages. It is not guaranteed to remain stable over time. It is unstable
+// across different builds with schema changes due to unknown fields.
+// Users who need canonical serialization (e.g., persistent storage in a
+// canonical form, fingerprinting, etc.) should define their own
+// canonicalization specification and implement their own serializer rather
+// than relying on this API.
+//
+// If deterministic serialization is requested, map entries will be sorted
+// by keys in lexographical order. This is an implementation detail and
+// subject to change.
+func (p *Buffer) SetDeterministic(deterministic bool) {
+	p.deterministic = deterministic
+}
+
+/*
+ * Helper routines for simplifying the creation of optional fields of basic type.
+ */
+
+// Bool is a helper routine that allocates a new bool value
+// to store v and returns a pointer to it.
+func Bool(v bool) *bool {
+	return &v
+}
+
+// Int32 is a helper routine that allocates a new int32 value
+// to store v and returns a pointer to it.
+func Int32(v int32) *int32 {
+	return &v
+}
+
+// Int is a helper routine that allocates a new int32 value
+// to store v and returns a pointer to it, but unlike Int32
+// its argument value is an int.
+func Int(v int) *int32 {
+	p := new(int32)
+	*p = int32(v)
+	return p
+}
+
+// Int64 is a helper routine that allocates a new int64 value
+// to store v and returns a pointer to it.
+func Int64(v int64) *int64 {
+	return &v
+}
+
+// Float32 is a helper routine that allocates a new float32 value
+// to store v and returns a pointer to it.
+func Float32(v float32) *float32 {
+	return &v
+}
+
+// Float64 is a helper routine that allocates a new float64 value
+// to store v and returns a pointer to it.
+func Float64(v float64) *float64 {
+	return &v
+}
+
+// Uint32 is a helper routine that allocates a new uint32 value
+// to store v and returns a pointer to it.
+func Uint32(v uint32) *uint32 {
+	return &v
+}
+
+// Uint64 is a helper routine that allocates a new uint64 value
+// to store v and returns a pointer to it.
+func Uint64(v uint64) *uint64 {
+	return &v
+}
+
+// String is a helper routine that allocates a new string value
+// to store v and returns a pointer to it.
+func String(v string) *string {
+	return &v
+}
+
+// EnumName is a helper function to simplify printing protocol buffer enums
+// by name.  Given an enum map and a value, it returns a useful string.
+func EnumName(m map[int32]string, v int32) string {
+	s, ok := m[v]
+	if ok {
+		return s
+	}
+	return strconv.Itoa(int(v))
+}
+
+// UnmarshalJSONEnum is a helper function to simplify recovering enum int values
+// from their JSON-encoded representation. Given a map from the enum's symbolic
+// names to its int values, and a byte buffer containing the JSON-encoded
+// value, it returns an int32 that can be cast to the enum type by the caller.
+//
+// The function can deal with both JSON representations, numeric and symbolic.
+func UnmarshalJSONEnum(m map[string]int32, data []byte, enumName string) (int32, error) {
+	if data[0] == '"' {
+		// New style: enums are strings.
+		var repr string
+		if err := json.Unmarshal(data, &repr); err != nil {
+			return -1, err
+		}
+		val, ok := m[repr]
+		if !ok {
+			return 0, fmt.Errorf("unrecognized enum %s value %q", enumName, repr)
+		}
+		return val, nil
+	}
+	// Old style: enums are ints.
+	var val int32
+	if err := json.Unmarshal(data, &val); err != nil {
+		return 0, fmt.Errorf("cannot unmarshal %#q into enum %s", data, enumName)
+	}
+	return val, nil
+}
+
+// DebugPrint dumps the encoded data in b in a debugging format with a header
+// including the string s. Used in testing but made available for general debugging.
+func (p *Buffer) DebugPrint(s string, b []byte) {
+	var u uint64
+
+	obuf := p.buf
+	index := p.index
+	p.buf = b
+	p.index = 0
+	depth := 0
+
+	fmt.Printf("\n--- %s ---\n", s)
+
+out:
+	for {
+		for i := 0; i < depth; i++ {
+			fmt.Print("  ")
+		}
+
+		index := p.index
+		if index == len(p.buf) {
+			break
+		}
+
+		op, err := p.DecodeVarint()
+		if err != nil {
+			fmt.Printf("%3d: fetching op err %v\n", index, err)
+			break out
+		}
+		tag := op >> 3
+		wire := op & 7
+
+		switch wire {
+		default:
+			fmt.Printf("%3d: t=%3d unknown wire=%d\n",
+				index, tag, wire)
+			break out
+
+		case WireBytes:
+			var r []byte
+
+			r, err = p.DecodeRawBytes(false)
+			if err != nil {
+				break out
+			}
+			fmt.Printf("%3d: t=%3d bytes [%d]", index, tag, len(r))
+			if len(r) <= 6 {
+				for i := 0; i < len(r); i++ {
+					fmt.Printf(" %.2x", r[i])
+				}
+			} else {
+				for i := 0; i < 3; i++ {
+					fmt.Printf(" %.2x", r[i])
+				}
+				fmt.Printf(" ..")
+				for i := len(r) - 3; i < len(r); i++ {
+					fmt.Printf(" %.2x", r[i])
+				}
+			}
+			fmt.Printf("\n")
+
+		case WireFixed32:
+			u, err = p.DecodeFixed32()
+			if err != nil {
+				fmt.Printf("%3d: t=%3d fix32 err %v\n", index, tag, err)
+				break out
+			}
+			fmt.Printf("%3d: t=%3d fix32 %d\n", index, tag, u)
+
+		case WireFixed64:
+			u, err = p.DecodeFixed64()
+			if err != nil {
+				fmt.Printf("%3d: t=%3d fix64 err %v\n", index, tag, err)
+				break out
+			}
+			fmt.Printf("%3d: t=%3d fix64 %d\n", index, tag, u)
+
+		case WireVarint:
+			u, err = p.DecodeVarint()
+			if err != nil {
+				fmt.Printf("%3d: t=%3d varint err %v\n", index, tag, err)
+				break out
+			}
+			fmt.Printf("%3d: t=%3d varint %d\n", index, tag, u)
+
+		case WireStartGroup:
+			fmt.Printf("%3d: t=%3d start\n", index, tag)
+			depth++
+
+		case WireEndGroup:
+			depth--
+			fmt.Printf("%3d: t=%3d end\n", index, tag)
+		}
+	}
+
+	if depth != 0 {
+		fmt.Printf("%3d: start-end not balanced %d\n", p.index, depth)
+	}
+	fmt.Printf("\n")
+
+	p.buf = obuf
+	p.index = index
+}
+
+// SetDefaults sets unset protocol buffer fields to their default values.
+// It only modifies fields that are both unset and have defined defaults.
+// It recursively sets default values in any non-nil sub-messages.
+func SetDefaults(pb Message) {
+	setDefaults(reflect.ValueOf(pb), true, false)
+}
+
+// v is a pointer to a struct.
+func setDefaults(v reflect.Value, recur, zeros bool) {
+	v = v.Elem()
+
+	defaultMu.RLock()
+	dm, ok := defaults[v.Type()]
+	defaultMu.RUnlock()
+	if !ok {
+		dm = buildDefaultMessage(v.Type())
+		defaultMu.Lock()
+		defaults[v.Type()] = dm
+		defaultMu.Unlock()
+	}
+
+	for _, sf := range dm.scalars {
+		f := v.Field(sf.index)
+		if !f.IsNil() {
+			// field already set
+			continue
+		}
+		dv := sf.value
+		if dv == nil && !zeros {
+			// no explicit default, and don't want to set zeros
+			continue
+		}
+		fptr := f.Addr().Interface() // **T
+		// TODO: Consider batching the allocations we do here.
+		switch sf.kind {
+		case reflect.Bool:
+			b := new(bool)
+			if dv != nil {
+				*b = dv.(bool)
+			}
+			*(fptr.(**bool)) = b
+		case reflect.Float32:
+			f := new(float32)
+			if dv != nil {
+				*f = dv.(float32)
+			}
+			*(fptr.(**float32)) = f
+		case reflect.Float64:
+			f := new(float64)
+			if dv != nil {
+				*f = dv.(float64)
+			}
+			*(fptr.(**float64)) = f
+		case reflect.Int32:
+			// might be an enum
+			if ft := f.Type(); ft != int32PtrType {
+				// enum
+				f.Set(reflect.New(ft.Elem()))
+				if dv != nil {
+					f.Elem().SetInt(int64(dv.(int32)))
+				}
+			} else {
+				// int32 field
+				i := new(int32)
+				if dv != nil {
+					*i = dv.(int32)
+				}
+				*(fptr.(**int32)) = i
+			}
+		case reflect.Int64:
+			i := new(int64)
+			if dv != nil {
+				*i = dv.(int64)
+			}
+			*(fptr.(**int64)) = i
+		case reflect.String:
+			s := new(string)
+			if dv != nil {
+				*s = dv.(string)
+			}
+			*(fptr.(**string)) = s
+		case reflect.Uint8:
+			// exceptional case: []byte
+			var b []byte
+			if dv != nil {
+				db := dv.([]byte)
+				b = make([]byte, len(db))
+				copy(b, db)
+			} else {
+				b = []byte{}
+			}
+			*(fptr.(*[]byte)) = b
+		case reflect.Uint32:
+			u := new(uint32)
+			if dv != nil {
+				*u = dv.(uint32)
+			}
+			*(fptr.(**uint32)) = u
+		case reflect.Uint64:
+			u := new(uint64)
+			if dv != nil {
+				*u = dv.(uint64)
+			}
+			*(fptr.(**uint64)) = u
+		default:
+			log.Printf("proto: can't set default for field %v (sf.kind=%v)", f, sf.kind)
+		}
+	}
+
+	for _, ni := range dm.nested {
+		f := v.Field(ni)
+		// f is *T or []*T or map[T]*T
+		switch f.Kind() {
+		case reflect.Ptr:
+			if f.IsNil() {
+				continue
+			}
+			setDefaults(f, recur, zeros)
+
+		case reflect.Slice:
+			for i := 0; i < f.Len(); i++ {
+				e := f.Index(i)
+				if e.IsNil() {
+					continue
+				}
+				setDefaults(e, recur, zeros)
+			}
+
+		case reflect.Map:
+			for _, k := range f.MapKeys() {
+				e := f.MapIndex(k)
+				if e.IsNil() {
+					continue
+				}
+				setDefaults(e, recur, zeros)
+			}
+		}
+	}
+}
+
+var (
+	// defaults maps a protocol buffer struct type to a slice of the fields,
+	// with its scalar fields set to their proto-declared non-zero default values.
+	defaultMu sync.RWMutex
+	defaults  = make(map[reflect.Type]defaultMessage)
+
+	int32PtrType = reflect.TypeOf((*int32)(nil))
+)
+
+// defaultMessage represents information about the default values of a message.
+type defaultMessage struct {
+	scalars []scalarField
+	nested  []int // struct field index of nested messages
+}
+
+type scalarField struct {
+	index int          // struct field index
+	kind  reflect.Kind // element type (the T in *T or []T)
+	value interface{}  // the proto-declared default value, or nil
+}
+
+// t is a struct type.
+func buildDefaultMessage(t reflect.Type) (dm defaultMessage) {
+	sprop := GetProperties(t)
+	for _, prop := range sprop.Prop {
+		fi, ok := sprop.decoderTags.get(prop.Tag)
+		if !ok {
+			// XXX_unrecognized
+			continue
+		}
+		ft := t.Field(fi).Type
+
+		sf, nested, err := fieldDefault(ft, prop)
+		switch {
+		case err != nil:
+			log.Print(err)
+		case nested:
+			dm.nested = append(dm.nested, fi)
+		case sf != nil:
+			sf.index = fi
+			dm.scalars = append(dm.scalars, *sf)
+		}
+	}
+
+	return dm
+}
+
+// fieldDefault returns the scalarField for field type ft.
+// sf will be nil if the field can not have a default.
+// nestedMessage will be true if this is a nested message.
+// Note that sf.index is not set on return.
+func fieldDefault(ft reflect.Type, prop *Properties) (sf *scalarField, nestedMessage bool, err error) {
+	var canHaveDefault bool
+	switch ft.Kind() {
+	case reflect.Ptr:
+		if ft.Elem().Kind() == reflect.Struct {
+			nestedMessage = true
+		} else {
+			canHaveDefault = true // proto2 scalar field
+		}
+
+	case reflect.Slice:
+		switch ft.Elem().Kind() {
+		case reflect.Ptr:
+			nestedMessage = true // repeated message
+		case reflect.Uint8:
+			canHaveDefault = true // bytes field
+		}
+
+	case reflect.Map:
+		if ft.Elem().Kind() == reflect.Ptr {
+			nestedMessage = true // map with message values
+		}
+	}
+
+	if !canHaveDefault {
+		if nestedMessage {
+			return nil, true, nil
+		}
+		return nil, false, nil
+	}
+
+	// We now know that ft is a pointer or slice.
+	sf = &scalarField{kind: ft.Elem().Kind()}
+
+	// scalar fields without defaults
+	if !prop.HasDefault {
+		return sf, false, nil
+	}
+
+	// a scalar field: either *T or []byte
+	switch ft.Elem().Kind() {
+	case reflect.Bool:
+		x, err := strconv.ParseBool(prop.Default)
+		if err != nil {
+			return nil, false, fmt.Errorf("proto: bad default bool %q: %v", prop.Default, err)
+		}
+		sf.value = x
+	case reflect.Float32:
+		x, err := strconv.ParseFloat(prop.Default, 32)
+		if err != nil {
+			return nil, false, fmt.Errorf("proto: bad default float32 %q: %v", prop.Default, err)
+		}
+		sf.value = float32(x)
+	case reflect.Float64:
+		x, err := strconv.ParseFloat(prop.Default, 64)
+		if err != nil {
+			return nil, false, fmt.Errorf("proto: bad default float64 %q: %v", prop.Default, err)
+		}
+		sf.value = x
+	case reflect.Int32:
+		x, err := strconv.ParseInt(prop.Default, 10, 32)
+		if err != nil {
+			return nil, false, fmt.Errorf("proto: bad default int32 %q: %v", prop.Default, err)
+		}
+		sf.value = int32(x)
+	case reflect.Int64:
+		x, err := strconv.ParseInt(prop.Default, 10, 64)
+		if err != nil {
+			return nil, false, fmt.Errorf("proto: bad default int64 %q: %v", prop.Default, err)
+		}
+		sf.value = x
+	case reflect.String:
+		sf.value = prop.Default
+	case reflect.Uint8:
+		// []byte (not *uint8)
+		sf.value = []byte(prop.Default)
+	case reflect.Uint32:
+		x, err := strconv.ParseUint(prop.Default, 10, 32)
+		if err != nil {
+			return nil, false, fmt.Errorf("proto: bad default uint32 %q: %v", prop.Default, err)
+		}
+		sf.value = uint32(x)
+	case reflect.Uint64:
+		x, err := strconv.ParseUint(prop.Default, 10, 64)
+		if err != nil {
+			return nil, false, fmt.Errorf("proto: bad default uint64 %q: %v", prop.Default, err)
+		}
+		sf.value = x
+	default:
+		return nil, false, fmt.Errorf("proto: unhandled def kind %v", ft.Elem().Kind())
+	}
+
+	return sf, false, nil
+}
+
+// mapKeys returns a sort.Interface to be used for sorting the map keys.
+// Map fields may have key types of non-float scalars, strings and enums.
+func mapKeys(vs []reflect.Value) sort.Interface {
+	s := mapKeySorter{vs: vs}
+
+	// Type specialization per https://developers.google.com/protocol-buffers/docs/proto#maps.
+	if len(vs) == 0 {
+		return s
+	}
+	switch vs[0].Kind() {
+	case reflect.Int32, reflect.Int64:
+		s.less = func(a, b reflect.Value) bool { return a.Int() < b.Int() }
+	case reflect.Uint32, reflect.Uint64:
+		s.less = func(a, b reflect.Value) bool { return a.Uint() < b.Uint() }
+	case reflect.Bool:
+		s.less = func(a, b reflect.Value) bool { return !a.Bool() && b.Bool() } // false < true
+	case reflect.String:
+		s.less = func(a, b reflect.Value) bool { return a.String() < b.String() }
+	default:
+		panic(fmt.Sprintf("unsupported map key type: %v", vs[0].Kind()))
+	}
+
+	return s
+}
+
+type mapKeySorter struct {
+	vs   []reflect.Value
+	less func(a, b reflect.Value) bool
+}
+
+func (s mapKeySorter) Len() int      { return len(s.vs) }
+func (s mapKeySorter) Swap(i, j int) { s.vs[i], s.vs[j] = s.vs[j], s.vs[i] }
+func (s mapKeySorter) Less(i, j int) bool {
+	return s.less(s.vs[i], s.vs[j])
+}
+
+// isProto3Zero reports whether v is a zero proto3 value.
+func isProto3Zero(v reflect.Value) bool {
+	switch v.Kind() {
+	case reflect.Bool:
+		return !v.Bool()
+	case reflect.Int32, reflect.Int64:
+		return v.Int() == 0
+	case reflect.Uint32, reflect.Uint64:
+		return v.Uint() == 0
+	case reflect.Float32, reflect.Float64:
+		return v.Float() == 0
+	case reflect.String:
+		return v.String() == ""
+	}
+	return false
+}
+
+const (
+	// ProtoPackageIsVersion3 is referenced from generated protocol buffer files
+	// to assert that that code is compatible with this version of the proto package.
+	ProtoPackageIsVersion3 = true
+
+	// ProtoPackageIsVersion2 is referenced from generated protocol buffer files
+	// to assert that that code is compatible with this version of the proto package.
+	ProtoPackageIsVersion2 = true
+
+	// ProtoPackageIsVersion1 is referenced from generated protocol buffer files
+	// to assert that that code is compatible with this version of the proto package.
+	ProtoPackageIsVersion1 = true
+)
+
+// InternalMessageInfo is a type used internally by generated .pb.go files.
+// This type is not intended to be used by non-generated code.
+// This type is not subject to any compatibility guarantee.
+type InternalMessageInfo struct {
+	marshal   *marshalInfo
+	unmarshal *unmarshalInfo
+	merge     *mergeInfo
+	discard   *discardInfo
+}

log/vendor/github.com/golang/protobuf/proto/message_set.go

@@ -0,0 +1,181 @@
+// 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.
+
+package proto
+
+/*
+ * Support for message sets.
+ */
+
+import (
+	"errors"
+)
+
+// errNoMessageTypeID occurs when a protocol buffer does not have a message type ID.
+// A message type ID is required for storing a protocol buffer in a message set.
+var errNoMessageTypeID = errors.New("proto does not have a message type ID")
+
+// The first two types (_MessageSet_Item and messageSet)
+// model what the protocol compiler produces for the following protocol message:
+//   message MessageSet {
+//     repeated group Item = 1 {
+//       required int32 type_id = 2;
+//       required string message = 3;
+//     };
+//   }
+// That is the MessageSet wire format. We can't use a proto to generate these
+// because that would introduce a circular dependency between it and this package.
+
+type _MessageSet_Item struct {
+	TypeId  *int32 `protobuf:"varint,2,req,name=type_id"`
+	Message []byte `protobuf:"bytes,3,req,name=message"`
+}
+
+type messageSet struct {
+	Item             []*_MessageSet_Item `protobuf:"group,1,rep"`
+	XXX_unrecognized []byte
+	// TODO: caching?
+}
+
+// Make sure messageSet is a Message.
+var _ Message = (*messageSet)(nil)
+
+// messageTypeIder is an interface satisfied by a protocol buffer type
+// that may be stored in a MessageSet.
+type messageTypeIder interface {
+	MessageTypeId() int32
+}
+
+func (ms *messageSet) find(pb Message) *_MessageSet_Item {
+	mti, ok := pb.(messageTypeIder)
+	if !ok {
+		return nil
+	}
+	id := mti.MessageTypeId()
+	for _, item := range ms.Item {
+		if *item.TypeId == id {
+			return item
+		}
+	}
+	return nil
+}
+
+func (ms *messageSet) Has(pb Message) bool {
+	return ms.find(pb) != nil
+}
+
+func (ms *messageSet) Unmarshal(pb Message) error {
+	if item := ms.find(pb); item != nil {
+		return Unmarshal(item.Message, pb)
+	}
+	if _, ok := pb.(messageTypeIder); !ok {
+		return errNoMessageTypeID
+	}
+	return nil // TODO: return error instead?
+}
+
+func (ms *messageSet) Marshal(pb Message) error {
+	msg, err := Marshal(pb)
+	if err != nil {
+		return err
+	}
+	if item := ms.find(pb); item != nil {
+		// reuse existing item
+		item.Message = msg
+		return nil
+	}
+
+	mti, ok := pb.(messageTypeIder)
+	if !ok {
+		return errNoMessageTypeID
+	}
+
+	mtid := mti.MessageTypeId()
+	ms.Item = append(ms.Item, &_MessageSet_Item{
+		TypeId:  &mtid,
+		Message: msg,
+	})
+	return nil
+}
+
+func (ms *messageSet) Reset()         { *ms = messageSet{} }
+func (ms *messageSet) String() string { return CompactTextString(ms) }
+func (*messageSet) ProtoMessage()     {}
+
+// Support for the message_set_wire_format message option.
+
+func skipVarint(buf []byte) []byte {
+	i := 0
+	for ; buf[i]&0x80 != 0; i++ {
+	}
+	return buf[i+1:]
+}
+
+// unmarshalMessageSet decodes the extension map encoded in buf in the message set wire format.
+// It is called by Unmarshal methods on protocol buffer messages with the message_set_wire_format option.
+func unmarshalMessageSet(buf []byte, exts interface{}) error {
+	var m map[int32]Extension
+	switch exts := exts.(type) {
+	case *XXX_InternalExtensions:
+		m = exts.extensionsWrite()
+	case map[int32]Extension:
+		m = exts
+	default:
+		return errors.New("proto: not an extension map")
+	}
+
+	ms := new(messageSet)
+	if err := Unmarshal(buf, ms); err != nil {
+		return err
+	}
+	for _, item := range ms.Item {
+		id := *item.TypeId
+		msg := item.Message
+
+		// Restore wire type and field number varint, plus length varint.
+		// Be careful to preserve duplicate items.
+		b := EncodeVarint(uint64(id)<<3 | WireBytes)
+		if ext, ok := m[id]; ok {
+			// Existing data; rip off the tag and length varint
+			// so we join the new data correctly.
+			// We can assume that ext.enc is set because we are unmarshaling.
+			o := ext.enc[len(b):]   // skip wire type and field number
+			_, n := DecodeVarint(o) // calculate length of length varint
+			o = o[n:]               // skip length varint
+			msg = append(o, msg...) // join old data and new data
+		}
+		b = append(b, EncodeVarint(uint64(len(msg)))...)
+		b = append(b, msg...)
+
+		m[id] = Extension{enc: b}
+	}
+	return nil
+}

log/vendor/github.com/golang/protobuf/proto/pointer_reflect.go

@@ -0,0 +1,360 @@
+// Go support for Protocol Buffers - Google's data interchange format
+//
+// Copyright 2012 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.
+
+// +build purego appengine js
+
+// This file contains an implementation of proto field accesses using package reflect.
+// It is slower than the code in pointer_unsafe.go but it avoids package unsafe and can
+// be used on App Engine.
+
+package proto
+
+import (
+	"reflect"
+	"sync"
+)
+
+const unsafeAllowed = false
+
+// A field identifies a field in a struct, accessible from a pointer.
+// In this implementation, a field is identified by the sequence of field indices
+// passed to reflect's FieldByIndex.
+type field []int
+
+// toField returns a field equivalent to the given reflect field.
+func toField(f *reflect.StructField) field {
+	return f.Index
+}
+
+// invalidField is an invalid field identifier.
+var invalidField = field(nil)
+
+// zeroField is a noop when calling pointer.offset.
+var zeroField = field([]int{})
+
+// IsValid reports whether the field identifier is valid.
+func (f field) IsValid() bool { return f != nil }
+
+// The pointer type is for the table-driven decoder.
+// The implementation here uses a reflect.Value of pointer type to
+// create a generic pointer. In pointer_unsafe.go we use unsafe
+// instead of reflect to implement the same (but faster) interface.
+type pointer struct {
+	v reflect.Value
+}
+
+// toPointer converts an interface of pointer type to a pointer
+// that points to the same target.
+func toPointer(i *Message) pointer {
+	return pointer{v: reflect.ValueOf(*i)}
+}
+
+// toAddrPointer converts an interface to a pointer that points to
+// the interface data.
+func toAddrPointer(i *interface{}, isptr, deref bool) pointer {
+	v := reflect.ValueOf(*i)
+	u := reflect.New(v.Type())
+	u.Elem().Set(v)
+	if deref {
+		u = u.Elem()
+	}
+	return pointer{v: u}
+}
+
+// valToPointer converts v to a pointer.  v must be of pointer type.
+func valToPointer(v reflect.Value) pointer {
+	return pointer{v: v}
+}
+
+// offset converts from a pointer to a structure to a pointer to
+// one of its fields.
+func (p pointer) offset(f field) pointer {
+	return pointer{v: p.v.Elem().FieldByIndex(f).Addr()}
+}
+
+func (p pointer) isNil() bool {
+	return p.v.IsNil()
+}
+
+// grow updates the slice s in place to make it one element longer.
+// s must be addressable.
+// Returns the (addressable) new element.
+func grow(s reflect.Value) reflect.Value {
+	n, m := s.Len(), s.Cap()
+	if n < m {
+		s.SetLen(n + 1)
+	} else {
+		s.Set(reflect.Append(s, reflect.Zero(s.Type().Elem())))
+	}
+	return s.Index(n)
+}
+
+func (p pointer) toInt64() *int64 {
+	return p.v.Interface().(*int64)
+}
+func (p pointer) toInt64Ptr() **int64 {
+	return p.v.Interface().(**int64)
+}
+func (p pointer) toInt64Slice() *[]int64 {
+	return p.v.Interface().(*[]int64)
+}
+
+var int32ptr = reflect.TypeOf((*int32)(nil))
+
+func (p pointer) toInt32() *int32 {
+	return p.v.Convert(int32ptr).Interface().(*int32)
+}
+
+// The toInt32Ptr/Slice methods don't work because of enums.
+// Instead, we must use set/get methods for the int32ptr/slice case.
+/*
+	func (p pointer) toInt32Ptr() **int32 {
+		return p.v.Interface().(**int32)
+}
+	func (p pointer) toInt32Slice() *[]int32 {
+		return p.v.Interface().(*[]int32)
+}
+*/
+func (p pointer) getInt32Ptr() *int32 {
+	if p.v.Type().Elem().Elem() == reflect.TypeOf(int32(0)) {
+		// raw int32 type
+		return p.v.Elem().Interface().(*int32)
+	}
+	// an enum
+	return p.v.Elem().Convert(int32PtrType).Interface().(*int32)
+}
+func (p pointer) setInt32Ptr(v int32) {
+	// Allocate value in a *int32. Possibly convert that to a *enum.
+	// Then assign it to a **int32 or **enum.
+	// Note: we can convert *int32 to *enum, but we can't convert
+	// **int32 to **enum!
+	p.v.Elem().Set(reflect.ValueOf(&v).Convert(p.v.Type().Elem()))
+}
+
+// getInt32Slice copies []int32 from p as a new slice.
+// This behavior differs from the implementation in pointer_unsafe.go.
+func (p pointer) getInt32Slice() []int32 {
+	if p.v.Type().Elem().Elem() == reflect.TypeOf(int32(0)) {
+		// raw int32 type
+		return p.v.Elem().Interface().([]int32)
+	}
+	// an enum
+	// Allocate a []int32, then assign []enum's values into it.
+	// Note: we can't convert []enum to []int32.
+	slice := p.v.Elem()
+	s := make([]int32, slice.Len())
+	for i := 0; i < slice.Len(); i++ {
+		s[i] = int32(slice.Index(i).Int())
+	}
+	return s
+}
+
+// setInt32Slice copies []int32 into p as a new slice.
+// This behavior differs from the implementation in pointer_unsafe.go.
+func (p pointer) setInt32Slice(v []int32) {
+	if p.v.Type().Elem().Elem() == reflect.TypeOf(int32(0)) {
+		// raw int32 type
+		p.v.Elem().Set(reflect.ValueOf(v))
+		return
+	}
+	// an enum
+	// Allocate a []enum, then assign []int32's values into it.
+	// Note: we can't convert []enum to []int32.
+	slice := reflect.MakeSlice(p.v.Type().Elem(), len(v), cap(v))
+	for i, x := range v {
+		slice.Index(i).SetInt(int64(x))
+	}
+	p.v.Elem().Set(slice)
+}
+func (p pointer) appendInt32Slice(v int32) {
+	grow(p.v.Elem()).SetInt(int64(v))
+}
+
+func (p pointer) toUint64() *uint64 {
+	return p.v.Interface().(*uint64)
+}
+func (p pointer) toUint64Ptr() **uint64 {
+	return p.v.Interface().(**uint64)
+}
+func (p pointer) toUint64Slice() *[]uint64 {
+	return p.v.Interface().(*[]uint64)
+}
+func (p pointer) toUint32() *uint32 {
+	return p.v.Interface().(*uint32)
+}
+func (p pointer) toUint32Ptr() **uint32 {
+	return p.v.Interface().(**uint32)
+}
+func (p pointer) toUint32Slice() *[]uint32 {
+	return p.v.Interface().(*[]uint32)
+}
+func (p pointer) toBool() *bool {
+	return p.v.Interface().(*bool)
+}
+func (p pointer) toBoolPtr() **bool {
+	return p.v.Interface().(**bool)
+}
+func (p pointer) toBoolSlice() *[]bool {
+	return p.v.Interface().(*[]bool)
+}
+func (p pointer) toFloat64() *float64 {
+	return p.v.Interface().(*float64)
+}
+func (p pointer) toFloat64Ptr() **float64 {
+	return p.v.Interface().(**float64)
+}
+func (p pointer) toFloat64Slice() *[]float64 {
+	return p.v.Interface().(*[]float64)
+}
+func (p pointer) toFloat32() *float32 {
+	return p.v.Interface().(*float32)
+}
+func (p pointer) toFloat32Ptr() **float32 {
+	return p.v.Interface().(**float32)
+}
+func (p pointer) toFloat32Slice() *[]float32 {
+	return p.v.Interface().(*[]float32)
+}
+func (p pointer) toString() *string {
+	return p.v.Interface().(*string)
+}
+func (p pointer) toStringPtr() **string {
+	return p.v.Interface().(**string)
+}
+func (p pointer) toStringSlice() *[]string {
+	return p.v.Interface().(*[]string)
+}
+func (p pointer) toBytes() *[]byte {
+	return p.v.Interface().(*[]byte)
+}
+func (p pointer) toBytesSlice() *[][]byte {
+	return p.v.Interface().(*[][]byte)
+}
+func (p pointer) toExtensions() *XXX_InternalExtensions {
+	return p.v.Interface().(*XXX_InternalExtensions)
+}
+func (p pointer) toOldExtensions() *map[int32]Extension {
+	return p.v.Interface().(*map[int32]Extension)
+}
+func (p pointer) getPointer() pointer {
+	return pointer{v: p.v.Elem()}
+}
+func (p pointer) setPointer(q pointer) {
+	p.v.Elem().Set(q.v)
+}
+func (p pointer) appendPointer(q pointer) {
+	grow(p.v.Elem()).Set(q.v)
+}
+
+// getPointerSlice copies []*T from p as a new []pointer.
+// This behavior differs from the implementation in pointer_unsafe.go.
+func (p pointer) getPointerSlice() []pointer {
+	if p.v.IsNil() {
+		return nil
+	}
+	n := p.v.Elem().Len()
+	s := make([]pointer, n)
+	for i := 0; i < n; i++ {
+		s[i] = pointer{v: p.v.Elem().Index(i)}
+	}
+	return s
+}
+
+// setPointerSlice copies []pointer into p as a new []*T.
+// This behavior differs from the implementation in pointer_unsafe.go.
+func (p pointer) setPointerSlice(v []pointer) {
+	if v == nil {
+		p.v.Elem().Set(reflect.New(p.v.Elem().Type()).Elem())
+		return
+	}
+	s := reflect.MakeSlice(p.v.Elem().Type(), 0, len(v))
+	for _, p := range v {
+		s = reflect.Append(s, p.v)
+	}
+	p.v.Elem().Set(s)
+}
+
+// getInterfacePointer returns a pointer that points to the
+// interface data of the interface pointed by p.
+func (p pointer) getInterfacePointer() pointer {
+	if p.v.Elem().IsNil() {
+		return pointer{v: p.v.Elem()}
+	}
+	return pointer{v: p.v.Elem().Elem().Elem().Field(0).Addr()} // *interface -> interface -> *struct -> struct
+}
+
+func (p pointer) asPointerTo(t reflect.Type) reflect.Value {
+	// TODO: check that p.v.Type().Elem() == t?
+	return p.v
+}
+
+func atomicLoadUnmarshalInfo(p **unmarshalInfo) *unmarshalInfo {
+	atomicLock.Lock()
+	defer atomicLock.Unlock()
+	return *p
+}
+func atomicStoreUnmarshalInfo(p **unmarshalInfo, v *unmarshalInfo) {
+	atomicLock.Lock()
+	defer atomicLock.Unlock()
+	*p = v
+}
+func atomicLoadMarshalInfo(p **marshalInfo) *marshalInfo {
+	atomicLock.Lock()
+	defer atomicLock.Unlock()
+	return *p
+}
+func atomicStoreMarshalInfo(p **marshalInfo, v *marshalInfo) {
+	atomicLock.Lock()
+	defer atomicLock.Unlock()
+	*p = v
+}
+func atomicLoadMergeInfo(p **mergeInfo) *mergeInfo {
+	atomicLock.Lock()
+	defer atomicLock.Unlock()
+	return *p
+}
+func atomicStoreMergeInfo(p **mergeInfo, v *mergeInfo) {
+	atomicLock.Lock()
+	defer atomicLock.Unlock()
+	*p = v
+}
+func atomicLoadDiscardInfo(p **discardInfo) *discardInfo {
+	atomicLock.Lock()
+	defer atomicLock.Unlock()
+	return *p
+}
+func atomicStoreDiscardInfo(p **discardInfo, v *discardInfo) {
+	atomicLock.Lock()
+	defer atomicLock.Unlock()
+	*p = v
+}
+
+var atomicLock sync.Mutex

log/vendor/github.com/golang/protobuf/proto/pointer_unsafe.go

@@ -0,0 +1,313 @@
+// Go support for Protocol Buffers - Google's data interchange format
+//
+// Copyright 2012 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.
+
+// +build !purego,!appengine,!js
+
+// This file contains the implementation of the proto field accesses using package unsafe.
+
+package proto
+
+import (
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+)
+
+const unsafeAllowed = true
+
+// A field identifies a field in a struct, accessible from a pointer.
+// In this implementation, a field is identified by its byte offset from the start of the struct.
+type field uintptr
+
+// toField returns a field equivalent to the given reflect field.
+func toField(f *reflect.StructField) field {
+	return field(f.Offset)
+}
+
+// invalidField is an invalid field identifier.
+const invalidField = ^field(0)
+
+// zeroField is a noop when calling pointer.offset.
+const zeroField = field(0)
+
+// IsValid reports whether the field identifier is valid.
+func (f field) IsValid() bool {
+	return f != invalidField
+}
+
+// The pointer type below is for the new table-driven encoder/decoder.
+// The implementation here uses unsafe.Pointer to create a generic pointer.
+// In pointer_reflect.go we use reflect instead of unsafe to implement
+// the same (but slower) interface.
+type pointer struct {
+	p unsafe.Pointer
+}
+
+// size of pointer
+var ptrSize = unsafe.Sizeof(uintptr(0))
+
+// toPointer converts an interface of pointer type to a pointer
+// that points to the same target.
+func toPointer(i *Message) pointer {
+	// Super-tricky - read pointer out of data word of interface value.
+	// Saves ~25ns over the equivalent:
+	// return valToPointer(reflect.ValueOf(*i))
+	return pointer{p: (*[2]unsafe.Pointer)(unsafe.Pointer(i))[1]}
+}
+
+// toAddrPointer converts an interface to a pointer that points to
+// the interface data.
+func toAddrPointer(i *interface{}, isptr, deref bool) (p pointer) {
+	// Super-tricky - read or get the address of data word of interface value.
+	if isptr {
+		// The interface is of pointer type, thus it is a direct interface.
+		// The data word is the pointer data itself. We take its address.
+		p = pointer{p: unsafe.Pointer(uintptr(unsafe.Pointer(i)) + ptrSize)}
+	} else {
+		// The interface is not of pointer type. The data word is the pointer
+		// to the data.
+		p = pointer{p: (*[2]unsafe.Pointer)(unsafe.Pointer(i))[1]}
+	}
+	if deref {
+		p.p = *(*unsafe.Pointer)(p.p)
+	}
+	return p
+}
+
+// valToPointer converts v to a pointer. v must be of pointer type.
+func valToPointer(v reflect.Value) pointer {
+	return pointer{p: unsafe.Pointer(v.Pointer())}
+}
+
+// offset converts from a pointer to a structure to a pointer to
+// one of its fields.
+func (p pointer) offset(f field) pointer {
+	// For safety, we should panic if !f.IsValid, however calling panic causes
+	// this to no longer be inlineable, which is a serious performance cost.
+	/*
+		if !f.IsValid() {
+			panic("invalid field")
+		}
+	*/
+	return pointer{p: unsafe.Pointer(uintptr(p.p) + uintptr(f))}
+}
+
+func (p pointer) isNil() bool {
+	return p.p == nil
+}
+
+func (p pointer) toInt64() *int64 {
+	return (*int64)(p.p)
+}
+func (p pointer) toInt64Ptr() **int64 {
+	return (**int64)(p.p)
+}
+func (p pointer) toInt64Slice() *[]int64 {
+	return (*[]int64)(p.p)
+}
+func (p pointer) toInt32() *int32 {
+	return (*int32)(p.p)
+}
+
+// See pointer_reflect.go for why toInt32Ptr/Slice doesn't exist.
+/*
+	func (p pointer) toInt32Ptr() **int32 {
+		return (**int32)(p.p)
+	}
+	func (p pointer) toInt32Slice() *[]int32 {
+		return (*[]int32)(p.p)
+	}
+*/
+func (p pointer) getInt32Ptr() *int32 {
+	return *(**int32)(p.p)
+}
+func (p pointer) setInt32Ptr(v int32) {
+	*(**int32)(p.p) = &v
+}
+
+// getInt32Slice loads a []int32 from p.
+// The value returned is aliased with the original slice.
+// This behavior differs from the implementation in pointer_reflect.go.
+func (p pointer) getInt32Slice() []int32 {
+	return *(*[]int32)(p.p)
+}
+
+// setInt32Slice stores a []int32 to p.
+// The value set is aliased with the input slice.
+// This behavior differs from the implementation in pointer_reflect.go.
+func (p pointer) setInt32Slice(v []int32) {
+	*(*[]int32)(p.p) = v
+}
+
+// TODO: Can we get rid of appendInt32Slice and use setInt32Slice instead?
+func (p pointer) appendInt32Slice(v int32) {
+	s := (*[]int32)(p.p)
+	*s = append(*s, v)
+}
+
+func (p pointer) toUint64() *uint64 {
+	return (*uint64)(p.p)
+}
+func (p pointer) toUint64Ptr() **uint64 {
+	return (**uint64)(p.p)
+}
+func (p pointer) toUint64Slice() *[]uint64 {
+	return (*[]uint64)(p.p)
+}
+func (p pointer) toUint32() *uint32 {
+	return (*uint32)(p.p)
+}
+func (p pointer) toUint32Ptr() **uint32 {
+	return (**uint32)(p.p)
+}
+func (p pointer) toUint32Slice() *[]uint32 {
+	return (*[]uint32)(p.p)
+}
+func (p pointer) toBool() *bool {
+	return (*bool)(p.p)
+}
+func (p pointer) toBoolPtr() **bool {
+	return (**bool)(p.p)
+}
+func (p pointer) toBoolSlice() *[]bool {
+	return (*[]bool)(p.p)
+}
+func (p pointer) toFloat64() *float64 {
+	return (*float64)(p.p)
+}
+func (p pointer) toFloat64Ptr() **float64 {
+	return (**float64)(p.p)
+}
+func (p pointer) toFloat64Slice() *[]float64 {
+	return (*[]float64)(p.p)
+}
+func (p pointer) toFloat32() *float32 {
+	return (*float32)(p.p)
+}
+func (p pointer) toFloat32Ptr() **float32 {
+	return (**float32)(p.p)
+}
+func (p pointer) toFloat32Slice() *[]float32 {
+	return (*[]float32)(p.p)
+}
+func (p pointer) toString() *string {
+	return (*string)(p.p)
+}
+func (p pointer) toStringPtr() **string {
+	return (**string)(p.p)
+}
+func (p pointer) toStringSlice() *[]string {
+	return (*[]string)(p.p)
+}
+func (p pointer) toBytes() *[]byte {
+	return (*[]byte)(p.p)
+}
+func (p pointer) toBytesSlice() *[][]byte {
+	return (*[][]byte)(p.p)
+}
+func (p pointer) toExtensions() *XXX_InternalExtensions {
+	return (*XXX_InternalExtensions)(p.p)
+}
+func (p pointer) toOldExtensions() *map[int32]Extension {
+	return (*map[int32]Extension)(p.p)
+}
+
+// getPointerSlice loads []*T from p as a []pointer.
+// The value returned is aliased with the original slice.
+// This behavior differs from the implementation in pointer_reflect.go.
+func (p pointer) getPointerSlice() []pointer {
+	// Super-tricky - p should point to a []*T where T is a
+	// message type. We load it as []pointer.
+	return *(*[]pointer)(p.p)
+}
+
+// setPointerSlice stores []pointer into p as a []*T.
+// The value set is aliased with the input slice.
+// This behavior differs from the implementation in pointer_reflect.go.
+func (p pointer) setPointerSlice(v []pointer) {
+	// Super-tricky - p should point to a []*T where T is a
+	// message type. We store it as []pointer.
+	*(*[]pointer)(p.p) = v
+}
+
+// getPointer loads the pointer at p and returns it.
+func (p pointer) getPointer() pointer {
+	return pointer{p: *(*unsafe.Pointer)(p.p)}
+}
+
+// setPointer stores the pointer q at p.
+func (p pointer) setPointer(q pointer) {
+	*(*unsafe.Pointer)(p.p) = q.p
+}
+
+// append q to the slice pointed to by p.
+func (p pointer) appendPointer(q pointer) {
+	s := (*[]unsafe.Pointer)(p.p)
+	*s = append(*s, q.p)
+}
+
+// getInterfacePointer returns a pointer that points to the
+// interface data of the interface pointed by p.
+func (p pointer) getInterfacePointer() pointer {
+	// Super-tricky - read pointer out of data word of interface value.
+	return pointer{p: (*(*[2]unsafe.Pointer)(p.p))[1]}
+}
+
+// asPointerTo returns a reflect.Value that is a pointer to an
+// object of type t stored at p.
+func (p pointer) asPointerTo(t reflect.Type) reflect.Value {
+	return reflect.NewAt(t, p.p)
+}
+
+func atomicLoadUnmarshalInfo(p **unmarshalInfo) *unmarshalInfo {
+	return (*unmarshalInfo)(atomic.LoadPointer((*unsafe.Pointer)(unsafe.Pointer(p))))
+}
+func atomicStoreUnmarshalInfo(p **unmarshalInfo, v *unmarshalInfo) {
+	atomic.StorePointer((*unsafe.Pointer)(unsafe.Pointer(p)), unsafe.Pointer(v))
+}
+func atomicLoadMarshalInfo(p **marshalInfo) *marshalInfo {
+	return (*marshalInfo)(atomic.LoadPointer((*unsafe.Pointer)(unsafe.Pointer(p))))
+}
+func atomicStoreMarshalInfo(p **marshalInfo, v *marshalInfo) {
+	atomic.StorePointer((*unsafe.Pointer)(unsafe.Pointer(p)), unsafe.Pointer(v))
+}
+func atomicLoadMergeInfo(p **mergeInfo) *mergeInfo {
+	return (*mergeInfo)(atomic.LoadPointer((*unsafe.Pointer)(unsafe.Pointer(p))))
+}
+func atomicStoreMergeInfo(p **mergeInfo, v *mergeInfo) {
+	atomic.StorePointer((*unsafe.Pointer)(unsafe.Pointer(p)), unsafe.Pointer(v))
+}
+func atomicLoadDiscardInfo(p **discardInfo) *discardInfo {
+	return (*discardInfo)(atomic.LoadPointer((*unsafe.Pointer)(unsafe.Pointer(p))))
+}
+func atomicStoreDiscardInfo(p **discardInfo, v *discardInfo) {
+	atomic.StorePointer((*unsafe.Pointer)(unsafe.Pointer(p)), unsafe.Pointer(v))
+}

log/vendor/github.com/golang/protobuf/proto/properties.go

@@ -0,0 +1,545 @@
+// 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.
+
+package proto
+
+/*
+ * Routines for encoding data into the wire format for protocol buffers.
+ */
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"reflect"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+)
+
+const debug bool = false
+
+// Constants that identify the encoding of a value on the wire.
+const (
+	WireVarint     = 0
+	WireFixed64    = 1
+	WireBytes      = 2
+	WireStartGroup = 3
+	WireEndGroup   = 4
+	WireFixed32    = 5
+)
+
+// tagMap is an optimization over map[int]int for typical protocol buffer
+// use-cases. Encoded protocol buffers are often in tag order with small tag
+// numbers.
+type tagMap struct {
+	fastTags []int
+	slowTags map[int]int
+}
+
+// tagMapFastLimit is the upper bound on the tag number that will be stored in
+// the tagMap slice rather than its map.
+const tagMapFastLimit = 1024
+
+func (p *tagMap) get(t int) (int, bool) {
+	if t > 0 && t < tagMapFastLimit {
+		if t >= len(p.fastTags) {
+			return 0, false
+		}
+		fi := p.fastTags[t]
+		return fi, fi >= 0
+	}
+	fi, ok := p.slowTags[t]
+	return fi, ok
+}
+
+func (p *tagMap) put(t int, fi int) {
+	if t > 0 && t < tagMapFastLimit {
+		for len(p.fastTags) < t+1 {
+			p.fastTags = append(p.fastTags, -1)
+		}
+		p.fastTags[t] = fi
+		return
+	}
+	if p.slowTags == nil {
+		p.slowTags = make(map[int]int)
+	}
+	p.slowTags[t] = fi
+}
+
+// StructProperties represents properties for all the fields of a struct.
+// decoderTags and decoderOrigNames should only be used by the decoder.
+type StructProperties struct {
+	Prop             []*Properties  // properties for each field
+	reqCount         int            // required count
+	decoderTags      tagMap         // map from proto tag to struct field number
+	decoderOrigNames map[string]int // map from original name to struct field number
+	order            []int          // list of struct field numbers in tag order
+
+	// OneofTypes contains information about the oneof fields in this message.
+	// It is keyed by the original name of a field.
+	OneofTypes map[string]*OneofProperties
+}
+
+// OneofProperties represents information about a specific field in a oneof.
+type OneofProperties struct {
+	Type  reflect.Type // pointer to generated struct type for this oneof field
+	Field int          // struct field number of the containing oneof in the message
+	Prop  *Properties
+}
+
+// Implement the sorting interface so we can sort the fields in tag order, as recommended by the spec.
+// See encode.go, (*Buffer).enc_struct.
+
+func (sp *StructProperties) Len() int { return len(sp.order) }
+func (sp *StructProperties) Less(i, j int) bool {
+	return sp.Prop[sp.order[i]].Tag < sp.Prop[sp.order[j]].Tag
+}
+func (sp *StructProperties) Swap(i, j int) { sp.order[i], sp.order[j] = sp.order[j], sp.order[i] }
+
+// Properties represents the protocol-specific behavior of a single struct field.
+type Properties struct {
+	Name     string // name of the field, for error messages
+	OrigName string // original name before protocol compiler (always set)
+	JSONName string // name to use for JSON; determined by protoc
+	Wire     string
+	WireType int
+	Tag      int
+	Required bool
+	Optional bool
+	Repeated bool
+	Packed   bool   // relevant for repeated primitives only
+	Enum     string // set for enum types only
+	proto3   bool   // whether this is known to be a proto3 field
+	oneof    bool   // whether this is a oneof field
+
+	Default    string // default value
+	HasDefault bool   // whether an explicit default was provided
+
+	stype reflect.Type      // set for struct types only
+	sprop *StructProperties // set for struct types only
+
+	mtype      reflect.Type // set for map types only
+	MapKeyProp *Properties  // set for map types only
+	MapValProp *Properties  // set for map types only
+}
+
+// String formats the properties in the protobuf struct field tag style.
+func (p *Properties) String() string {
+	s := p.Wire
+	s += ","
+	s += strconv.Itoa(p.Tag)
+	if p.Required {
+		s += ",req"
+	}
+	if p.Optional {
+		s += ",opt"
+	}
+	if p.Repeated {
+		s += ",rep"
+	}
+	if p.Packed {
+		s += ",packed"
+	}
+	s += ",name=" + p.OrigName
+	if p.JSONName != p.OrigName {
+		s += ",json=" + p.JSONName
+	}
+	if p.proto3 {
+		s += ",proto3"
+	}
+	if p.oneof {
+		s += ",oneof"
+	}
+	if len(p.Enum) > 0 {
+		s += ",enum=" + p.Enum
+	}
+	if p.HasDefault {
+		s += ",def=" + p.Default
+	}
+	return s
+}
+
+// Parse populates p by parsing a string in the protobuf struct field tag style.
+func (p *Properties) Parse(s string) {
+	// "bytes,49,opt,name=foo,def=hello!"
+	fields := strings.Split(s, ",") // breaks def=, but handled below.
+	if len(fields) < 2 {
+		fmt.Fprintf(os.Stderr, "proto: tag has too few fields: %q\n", s)
+		return
+	}
+
+	p.Wire = fields[0]
+	switch p.Wire {
+	case "varint":
+		p.WireType = WireVarint
+	case "fixed32":
+		p.WireType = WireFixed32
+	case "fixed64":
+		p.WireType = WireFixed64
+	case "zigzag32":
+		p.WireType = WireVarint
+	case "zigzag64":
+		p.WireType = WireVarint
+	case "bytes", "group":
+		p.WireType = WireBytes
+		// no numeric converter for non-numeric types
+	default:
+		fmt.Fprintf(os.Stderr, "proto: tag has unknown wire type: %q\n", s)
+		return
+	}
+
+	var err error
+	p.Tag, err = strconv.Atoi(fields[1])
+	if err != nil {
+		return
+	}
+
+outer:
+	for i := 2; i < len(fields); i++ {
+		f := fields[i]
+		switch {
+		case f == "req":
+			p.Required = true
+		case f == "opt":
+			p.Optional = true
+		case f == "rep":
+			p.Repeated = true
+		case f == "packed":
+			p.Packed = true
+		case strings.HasPrefix(f, "name="):
+			p.OrigName = f[5:]
+		case strings.HasPrefix(f, "json="):
+			p.JSONName = f[5:]
+		case strings.HasPrefix(f, "enum="):
+			p.Enum = f[5:]
+		case f == "proto3":
+			p.proto3 = true
+		case f == "oneof":
+			p.oneof = true
+		case strings.HasPrefix(f, "def="):
+			p.HasDefault = true
+			p.Default = f[4:] // rest of string
+			if i+1 < len(fields) {
+				// Commas aren't escaped, and def is always last.
+				p.Default += "," + strings.Join(fields[i+1:], ",")
+				break outer
+			}
+		}
+	}
+}
+
+var protoMessageType = reflect.TypeOf((*Message)(nil)).Elem()
+
+// setFieldProps initializes the field properties for submessages and maps.
+func (p *Properties) setFieldProps(typ reflect.Type, f *reflect.StructField, lockGetProp bool) {
+	switch t1 := typ; t1.Kind() {
+	case reflect.Ptr:
+		if t1.Elem().Kind() == reflect.Struct {
+			p.stype = t1.Elem()
+		}
+
+	case reflect.Slice:
+		if t2 := t1.Elem(); t2.Kind() == reflect.Ptr && t2.Elem().Kind() == reflect.Struct {
+			p.stype = t2.Elem()
+		}
+
+	case reflect.Map:
+		p.mtype = t1
+		p.MapKeyProp = &Properties{}
+		p.MapKeyProp.init(reflect.PtrTo(p.mtype.Key()), "Key", f.Tag.Get("protobuf_key"), nil, lockGetProp)
+		p.MapValProp = &Properties{}
+		vtype := p.mtype.Elem()
+		if vtype.Kind() != reflect.Ptr && vtype.Kind() != reflect.Slice {
+			// The value type is not a message (*T) or bytes ([]byte),
+			// so we need encoders for the pointer to this type.
+			vtype = reflect.PtrTo(vtype)
+		}
+		p.MapValProp.init(vtype, "Value", f.Tag.Get("protobuf_val"), nil, lockGetProp)
+	}
+
+	if p.stype != nil {
+		if lockGetProp {
+			p.sprop = GetProperties(p.stype)
+		} else {
+			p.sprop = getPropertiesLocked(p.stype)
+		}
+	}
+}
+
+var (
+	marshalerType = reflect.TypeOf((*Marshaler)(nil)).Elem()
+)
+
+// Init populates the properties from a protocol buffer struct tag.
+func (p *Properties) Init(typ reflect.Type, name, tag string, f *reflect.StructField) {
+	p.init(typ, name, tag, f, true)
+}
+
+func (p *Properties) init(typ reflect.Type, name, tag string, f *reflect.StructField, lockGetProp bool) {
+	// "bytes,49,opt,def=hello!"
+	p.Name = name
+	p.OrigName = name
+	if tag == "" {
+		return
+	}
+	p.Parse(tag)
+	p.setFieldProps(typ, f, lockGetProp)
+}
+
+var (
+	propertiesMu  sync.RWMutex
+	propertiesMap = make(map[reflect.Type]*StructProperties)
+)
+
+// GetProperties returns the list of properties for the type represented by t.
+// t must represent a generated struct type of a protocol message.
+func GetProperties(t reflect.Type) *StructProperties {
+	if t.Kind() != reflect.Struct {
+		panic("proto: type must have kind struct")
+	}
+
+	// Most calls to GetProperties in a long-running program will be
+	// retrieving details for types we have seen before.
+	propertiesMu.RLock()
+	sprop, ok := propertiesMap[t]
+	propertiesMu.RUnlock()
+	if ok {
+		return sprop
+	}
+
+	propertiesMu.Lock()
+	sprop = getPropertiesLocked(t)
+	propertiesMu.Unlock()
+	return sprop
+}
+
+type (
+	oneofFuncsIface interface {
+		XXX_OneofFuncs() (func(Message, *Buffer) error, func(Message, int, int, *Buffer) (bool, error), func(Message) int, []interface{})
+	}
+	oneofWrappersIface interface {
+		XXX_OneofWrappers() []interface{}
+	}
+)
+
+// getPropertiesLocked requires that propertiesMu is held.
+func getPropertiesLocked(t reflect.Type) *StructProperties {
+	if prop, ok := propertiesMap[t]; ok {
+		return prop
+	}
+
+	prop := new(StructProperties)
+	// in case of recursive protos, fill this in now.
+	propertiesMap[t] = prop
+
+	// build properties
+	prop.Prop = make([]*Properties, t.NumField())
+	prop.order = make([]int, t.NumField())
+
+	for i := 0; i < t.NumField(); i++ {
+		f := t.Field(i)
+		p := new(Properties)
+		name := f.Name
+		p.init(f.Type, name, f.Tag.Get("protobuf"), &f, false)
+
+		oneof := f.Tag.Get("protobuf_oneof") // special case
+		if oneof != "" {
+			// Oneof fields don't use the traditional protobuf tag.
+			p.OrigName = oneof
+		}
+		prop.Prop[i] = p
+		prop.order[i] = i
+		if debug {
+			print(i, " ", f.Name, " ", t.String(), " ")
+			if p.Tag > 0 {
+				print(p.String())
+			}
+			print("\n")
+		}
+	}
+
+	// Re-order prop.order.
+	sort.Sort(prop)
+
+	var oots []interface{}
+	switch m := reflect.Zero(reflect.PtrTo(t)).Interface().(type) {
+	case oneofFuncsIface:
+		_, _, _, oots = m.XXX_OneofFuncs()
+	case oneofWrappersIface:
+		oots = m.XXX_OneofWrappers()
+	}
+	if len(oots) > 0 {
+		// Interpret oneof metadata.
+		prop.OneofTypes = make(map[string]*OneofProperties)
+		for _, oot := range oots {
+			oop := &OneofProperties{
+				Type: reflect.ValueOf(oot).Type(), // *T
+				Prop: new(Properties),
+			}
+			sft := oop.Type.Elem().Field(0)
+			oop.Prop.Name = sft.Name
+			oop.Prop.Parse(sft.Tag.Get("protobuf"))
+			// There will be exactly one interface field that
+			// this new value is assignable to.
+			for i := 0; i < t.NumField(); i++ {
+				f := t.Field(i)
+				if f.Type.Kind() != reflect.Interface {
+					continue
+				}
+				if !oop.Type.AssignableTo(f.Type) {
+					continue
+				}
+				oop.Field = i
+				break
+			}
+			prop.OneofTypes[oop.Prop.OrigName] = oop
+		}
+	}
+
+	// build required counts
+	// build tags
+	reqCount := 0
+	prop.decoderOrigNames = make(map[string]int)
+	for i, p := range prop.Prop {
+		if strings.HasPrefix(p.Name, "XXX_") {
+			// Internal fields should not appear in tags/origNames maps.
+			// They are handled specially when encoding and decoding.
+			continue
+		}
+		if p.Required {
+			reqCount++
+		}
+		prop.decoderTags.put(p.Tag, i)
+		prop.decoderOrigNames[p.OrigName] = i
+	}
+	prop.reqCount = reqCount
+
+	return prop
+}
+
+// A global registry of enum types.
+// The generated code will register the generated maps by calling RegisterEnum.
+
+var enumValueMaps = make(map[string]map[string]int32)
+
+// RegisterEnum is called from the generated code to install the enum descriptor
+// maps into the global table to aid parsing text format protocol buffers.
+func RegisterEnum(typeName string, unusedNameMap map[int32]string, valueMap map[string]int32) {
+	if _, ok := enumValueMaps[typeName]; ok {
+		panic("proto: duplicate enum registered: " + typeName)
+	}
+	enumValueMaps[typeName] = valueMap
+}
+
+// EnumValueMap returns the mapping from names to integers of the
+// enum type enumType, or a nil if not found.
+func EnumValueMap(enumType string) map[string]int32 {
+	return enumValueMaps[enumType]
+}
+
+// A registry of all linked message types.
+// The string is a fully-qualified proto name ("pkg.Message").
+var (
+	protoTypedNils = make(map[string]Message)      // a map from proto names to typed nil pointers
+	protoMapTypes  = make(map[string]reflect.Type) // a map from proto names to map types
+	revProtoTypes  = make(map[reflect.Type]string)
+)
+
+// RegisterType is called from generated code and maps from the fully qualified
+// proto name to the type (pointer to struct) of the protocol buffer.
+func RegisterType(x Message, name string) {
+	if _, ok := protoTypedNils[name]; ok {
+		// TODO: Some day, make this a panic.
+		log.Printf("proto: duplicate proto type registered: %s", name)
+		return
+	}
+	t := reflect.TypeOf(x)
+	if v := reflect.ValueOf(x); v.Kind() == reflect.Ptr && v.Pointer() == 0 {
+		// Generated code always calls RegisterType with nil x.
+		// This check is just for extra safety.
+		protoTypedNils[name] = x
+	} else {
+		protoTypedNils[name] = reflect.Zero(t).Interface().(Message)
+	}
+	revProtoTypes[t] = name
+}
+
+// RegisterMapType is called from generated code and maps from the fully qualified
+// proto name to the native map type of the proto map definition.
+func RegisterMapType(x interface{}, name string) {
+	if reflect.TypeOf(x).Kind() != reflect.Map {
+		panic(fmt.Sprintf("RegisterMapType(%T, %q); want map", x, name))
+	}
+	if _, ok := protoMapTypes[name]; ok {
+		log.Printf("proto: duplicate proto type registered: %s", name)
+		return
+	}
+	t := reflect.TypeOf(x)
+	protoMapTypes[name] = t
+	revProtoTypes[t] = name
+}
+
+// MessageName returns the fully-qualified proto name for the given message type.
+func MessageName(x Message) string {
+	type xname interface {
+		XXX_MessageName() string
+	}
+	if m, ok := x.(xname); ok {
+		return m.XXX_MessageName()
+	}
+	return revProtoTypes[reflect.TypeOf(x)]
+}
+
+// MessageType returns the message type (pointer to struct) for a named message.
+// The type is not guaranteed to implement proto.Message if the name refers to a
+// map entry.
+func MessageType(name string) reflect.Type {
+	if t, ok := protoTypedNils[name]; ok {
+		return reflect.TypeOf(t)
+	}
+	return protoMapTypes[name]
+}
+
+// A registry of all linked proto files.
+var (
+	protoFiles = make(map[string][]byte) // file name => fileDescriptor
+)
+
+// RegisterFile is called from generated code and maps from the
+// full file name of a .proto file to its compressed FileDescriptorProto.
+func RegisterFile(filename string, fileDescriptor []byte) {
+	protoFiles[filename] = fileDescriptor
+}
+
+// FileDescriptor returns the compressed FileDescriptorProto for a .proto file.
+func FileDescriptor(filename string) []byte { return protoFiles[filename] }

log/vendor/github.com/golang/protobuf/proto/table_merge.go

@@ -0,0 +1,654 @@
+// Go support for Protocol Buffers - Google's data interchange format
+//
+// Copyright 2016 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.
+
+package proto
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+	"sync"
+	"sync/atomic"
+)
+
+// Merge merges the src message into dst.
+// This assumes that dst and src of the same type and are non-nil.
+func (a *InternalMessageInfo) Merge(dst, src Message) {
+	mi := atomicLoadMergeInfo(&a.merge)
+	if mi == nil {
+		mi = getMergeInfo(reflect.TypeOf(dst).Elem())
+		atomicStoreMergeInfo(&a.merge, mi)
+	}
+	mi.merge(toPointer(&dst), toPointer(&src))
+}
+
+type mergeInfo struct {
+	typ reflect.Type
+
+	initialized int32 // 0: only typ is valid, 1: everything is valid
+	lock        sync.Mutex
+
+	fields       []mergeFieldInfo
+	unrecognized field // Offset of XXX_unrecognized
+}
+
+type mergeFieldInfo struct {
+	field field // Offset of field, guaranteed to be valid
+
+	// isPointer reports whether the value in the field is a pointer.
+	// This is true for the following situations:
+	//	* Pointer to struct
+	//	* Pointer to basic type (proto2 only)
+	//	* Slice (first value in slice header is a pointer)
+	//	* String (first value in string header is a pointer)
+	isPointer bool
+
+	// basicWidth reports the width of the field assuming that it is directly
+	// embedded in the struct (as is the case for basic types in proto3).
+	// The possible values are:
+	// 	0: invalid
+	//	1: bool
+	//	4: int32, uint32, float32
+	//	8: int64, uint64, float64
+	basicWidth int
+
+	// Where dst and src are pointers to the types being merged.
+	merge func(dst, src pointer)
+}
+
+var (
+	mergeInfoMap  = map[reflect.Type]*mergeInfo{}
+	mergeInfoLock sync.Mutex
+)
+
+func getMergeInfo(t reflect.Type) *mergeInfo {
+	mergeInfoLock.Lock()
+	defer mergeInfoLock.Unlock()
+	mi := mergeInfoMap[t]
+	if mi == nil {
+		mi = &mergeInfo{typ: t}
+		mergeInfoMap[t] = mi
+	}
+	return mi
+}
+
+// merge merges src into dst assuming they are both of type *mi.typ.
+func (mi *mergeInfo) merge(dst, src pointer) {
+	if dst.isNil() {
+		panic("proto: nil destination")
+	}
+	if src.isNil() {
+		return // Nothing to do.
+	}
+
+	if atomic.LoadInt32(&mi.initialized) == 0 {
+		mi.computeMergeInfo()
+	}
+
+	for _, fi := range mi.fields {
+		sfp := src.offset(fi.field)
+
+		// As an optimization, we can avoid the merge function call cost
+		// if we know for sure that the source will have no effect
+		// by checking if it is the zero value.
+		if unsafeAllowed {
+			if fi.isPointer && sfp.getPointer().isNil() { // Could be slice or string
+				continue
+			}
+			if fi.basicWidth > 0 {
+				switch {
+				case fi.basicWidth == 1 && !*sfp.toBool():
+					continue
+				case fi.basicWidth == 4 && *sfp.toUint32() == 0:
+					continue
+				case fi.basicWidth == 8 && *sfp.toUint64() == 0:
+					continue
+				}
+			}
+		}
+
+		dfp := dst.offset(fi.field)
+		fi.merge(dfp, sfp)
+	}
+
+	// TODO: Make this faster?
+	out := dst.asPointerTo(mi.typ).Elem()
+	in := src.asPointerTo(mi.typ).Elem()
+	if emIn, err := extendable(in.Addr().Interface()); err == nil {
+		emOut, _ := extendable(out.Addr().Interface())
+		mIn, muIn := emIn.extensionsRead()
+		if mIn != nil {
+			mOut := emOut.extensionsWrite()
+			muIn.Lock()
+			mergeExtension(mOut, mIn)
+			muIn.Unlock()
+		}
+	}
+
+	if mi.unrecognized.IsValid() {
+		if b := *src.offset(mi.unrecognized).toBytes(); len(b) > 0 {
+			*dst.offset(mi.unrecognized).toBytes() = append([]byte(nil), b...)
+		}
+	}
+}
+
+func (mi *mergeInfo) computeMergeInfo() {
+	mi.lock.Lock()
+	defer mi.lock.Unlock()
+	if mi.initialized != 0 {
+		return
+	}
+	t := mi.typ
+	n := t.NumField()
+
+	props := GetProperties(t)
+	for i := 0; i < n; i++ {
+		f := t.Field(i)
+		if strings.HasPrefix(f.Name, "XXX_") {
+			continue
+		}
+
+		mfi := mergeFieldInfo{field: toField(&f)}
+		tf := f.Type
+
+		// As an optimization, we can avoid the merge function call cost
+		// if we know for sure that the source will have no effect
+		// by checking if it is the zero value.
+		if unsafeAllowed {
+			switch tf.Kind() {
+			case reflect.Ptr, reflect.Slice, reflect.String:
+				// As a special case, we assume slices and strings are pointers
+				// since we know that the first field in the SliceSlice or
+				// StringHeader is a data pointer.
+				mfi.isPointer = true
+			case reflect.Bool:
+				mfi.basicWidth = 1
+			case reflect.Int32, reflect.Uint32, reflect.Float32:
+				mfi.basicWidth = 4
+			case reflect.Int64, reflect.Uint64, reflect.Float64:
+				mfi.basicWidth = 8
+			}
+		}
+
+		// Unwrap tf to get at its most basic type.
+		var isPointer, isSlice bool
+		if tf.Kind() == reflect.Slice && tf.Elem().Kind() != reflect.Uint8 {
+			isSlice = true
+			tf = tf.Elem()
+		}
+		if tf.Kind() == reflect.Ptr {
+			isPointer = true
+			tf = tf.Elem()
+		}
+		if isPointer && isSlice && tf.Kind() != reflect.Struct {
+			panic("both pointer and slice for basic type in " + tf.Name())
+		}
+
+		switch tf.Kind() {
+		case reflect.Int32:
+			switch {
+			case isSlice: // E.g., []int32
+				mfi.merge = func(dst, src pointer) {
+					// NOTE: toInt32Slice is not defined (see pointer_reflect.go).
+					/*
+						sfsp := src.toInt32Slice()
+						if *sfsp != nil {
+							dfsp := dst.toInt32Slice()
+							*dfsp = append(*dfsp, *sfsp...)
+							if *dfsp == nil {
+								*dfsp = []int64{}
+							}
+						}
+					*/
+					sfs := src.getInt32Slice()
+					if sfs != nil {
+						dfs := dst.getInt32Slice()
+						dfs = append(dfs, sfs...)
+						if dfs == nil {
+							dfs = []int32{}
+						}
+						dst.setInt32Slice(dfs)
+					}
+				}
+			case isPointer: // E.g., *int32
+				mfi.merge = func(dst, src pointer) {
+					// NOTE: toInt32Ptr is not defined (see pointer_reflect.go).
+					/*
+						sfpp := src.toInt32Ptr()
+						if *sfpp != nil {
+							dfpp := dst.toInt32Ptr()
+							if *dfpp == nil {
+								*dfpp = Int32(**sfpp)
+							} else {
+								**dfpp = **sfpp
+							}
+						}
+					*/
+					sfp := src.getInt32Ptr()
+					if sfp != nil {
+						dfp := dst.getInt32Ptr()
+						if dfp == nil {
+							dst.setInt32Ptr(*sfp)
+						} else {
+							*dfp = *sfp
+						}
+					}
+				}
+			default: // E.g., int32
+				mfi.merge = func(dst, src pointer) {
+					if v := *src.toInt32(); v != 0 {
+						*dst.toInt32() = v
+					}
+				}
+			}
+		case reflect.Int64:
+			switch {
+			case isSlice: // E.g., []int64
+				mfi.merge = func(dst, src pointer) {
+					sfsp := src.toInt64Slice()
+					if *sfsp != nil {
+						dfsp := dst.toInt64Slice()
+						*dfsp = append(*dfsp, *sfsp...)
+						if *dfsp == nil {
+							*dfsp = []int64{}
+						}
+					}
+				}
+			case isPointer: // E.g., *int64
+				mfi.merge = func(dst, src pointer) {
+					sfpp := src.toInt64Ptr()
+					if *sfpp != nil {
+						dfpp := dst.toInt64Ptr()
+						if *dfpp == nil {
+							*dfpp = Int64(**sfpp)
+						} else {
+							**dfpp = **sfpp
+						}
+					}
+				}
+			default: // E.g., int64
+				mfi.merge = func(dst, src pointer) {
+					if v := *src.toInt64(); v != 0 {
+						*dst.toInt64() = v
+					}
+				}
+			}
+		case reflect.Uint32:
+			switch {
+			case isSlice: // E.g., []uint32
+				mfi.merge = func(dst, src pointer) {
+					sfsp := src.toUint32Slice()
+					if *sfsp != nil {
+						dfsp := dst.toUint32Slice()
+						*dfsp = append(*dfsp, *sfsp...)
+						if *dfsp == nil {
+							*dfsp = []uint32{}
+						}
+					}
+				}
+			case isPointer: // E.g., *uint32
+				mfi.merge = func(dst, src pointer) {
+					sfpp := src.toUint32Ptr()
+					if *sfpp != nil {
+						dfpp := dst.toUint32Ptr()
+						if *dfpp == nil {
+							*dfpp = Uint32(**sfpp)
+						} else {
+							**dfpp = **sfpp
+						}
+					}
+				}
+			default: // E.g., uint32
+				mfi.merge = func(dst, src pointer) {
+					if v := *src.toUint32(); v != 0 {
+						*dst.toUint32() = v
+					}
+				}
+			}
+		case reflect.Uint64:
+			switch {
+			case isSlice: // E.g., []uint64
+				mfi.merge = func(dst, src pointer) {
+					sfsp := src.toUint64Slice()
+					if *sfsp != nil {
+						dfsp := dst.toUint64Slice()
+						*dfsp = append(*dfsp, *sfsp...)
+						if *dfsp == nil {
+							*dfsp = []uint64{}
+						}
+					}
+				}
+			case isPointer: // E.g., *uint64
+				mfi.merge = func(dst, src pointer) {
+					sfpp := src.toUint64Ptr()
+					if *sfpp != nil {
+						dfpp := dst.toUint64Ptr()
+						if *dfpp == nil {
+							*dfpp = Uint64(**sfpp)
+						} else {
+							**dfpp = **sfpp
+						}
+					}
+				}
+			default: // E.g., uint64
+				mfi.merge = func(dst, src pointer) {
+					if v := *src.toUint64(); v != 0 {
+						*dst.toUint64() = v
+					}
+				}
+			}
+		case reflect.Float32:
+			switch {
+			case isSlice: // E.g., []float32
+				mfi.merge = func(dst, src pointer) {
+					sfsp := src.toFloat32Slice()
+					if *sfsp != nil {
+						dfsp := dst.toFloat32Slice()
+						*dfsp = append(*dfsp, *sfsp...)
+						if *dfsp == nil {
+							*dfsp = []float32{}
+						}
+					}
+				}
+			case isPointer: // E.g., *float32
+				mfi.merge = func(dst, src pointer) {
+					sfpp := src.toFloat32Ptr()
+					if *sfpp != nil {
+						dfpp := dst.toFloat32Ptr()
+						if *dfpp == nil {
+							*dfpp = Float32(**sfpp)
+						} else {
+							**dfpp = **sfpp
+						}
+					}
+				}
+			default: // E.g., float32
+				mfi.merge = func(dst, src pointer) {
+					if v := *src.toFloat32(); v != 0 {
+						*dst.toFloat32() = v
+					}
+				}
+			}
+		case reflect.Float64:
+			switch {
+			case isSlice: // E.g., []float64
+				mfi.merge = func(dst, src pointer) {
+					sfsp := src.toFloat64Slice()
+					if *sfsp != nil {
+						dfsp := dst.toFloat64Slice()
+						*dfsp = append(*dfsp, *sfsp...)
+						if *dfsp == nil {
+							*dfsp = []float64{}
+						}
+					}
+				}
+			case isPointer: // E.g., *float64
+				mfi.merge = func(dst, src pointer) {
+					sfpp := src.toFloat64Ptr()
+					if *sfpp != nil {
+						dfpp := dst.toFloat64Ptr()
+						if *dfpp == nil {
+							*dfpp = Float64(**sfpp)
+						} else {
+							**dfpp = **sfpp
+						}
+					}
+				}
+			default: // E.g., float64
+				mfi.merge = func(dst, src pointer) {
+					if v := *src.toFloat64(); v != 0 {
+						*dst.toFloat64() = v
+					}
+				}
+			}
+		case reflect.Bool:
+			switch {
+			case isSlice: // E.g., []bool
+				mfi.merge = func(dst, src pointer) {
+					sfsp := src.toBoolSlice()
+					if *sfsp != nil {
+						dfsp := dst.toBoolSlice()
+						*dfsp = append(*dfsp, *sfsp...)
+						if *dfsp == nil {
+							*dfsp = []bool{}
+						}
+					}
+				}
+			case isPointer: // E.g., *bool
+				mfi.merge = func(dst, src pointer) {
+					sfpp := src.toBoolPtr()
+					if *sfpp != nil {
+						dfpp := dst.toBoolPtr()
+						if *dfpp == nil {
+							*dfpp = Bool(**sfpp)
+						} else {
+							**dfpp = **sfpp
+						}
+					}
+				}
+			default: // E.g., bool
+				mfi.merge = func(dst, src pointer) {
+					if v := *src.toBool(); v {
+						*dst.toBool() = v
+					}
+				}
+			}
+		case reflect.String:
+			switch {
+			case isSlice: // E.g., []string
+				mfi.merge = func(dst, src pointer) {
+					sfsp := src.toStringSlice()
+					if *sfsp != nil {
+						dfsp := dst.toStringSlice()
+						*dfsp = append(*dfsp, *sfsp...)
+						if *dfsp == nil {
+							*dfsp = []string{}
+						}
+					}
+				}
+			case isPointer: // E.g., *string
+				mfi.merge = func(dst, src pointer) {
+					sfpp := src.toStringPtr()
+					if *sfpp != nil {
+						dfpp := dst.toStringPtr()
+						if *dfpp == nil {
+							*dfpp = String(**sfpp)
+						} else {
+							**dfpp = **sfpp
+						}
+					}
+				}
+			default: // E.g., string
+				mfi.merge = func(dst, src pointer) {
+					if v := *src.toString(); v != "" {
+						*dst.toString() = v
+					}
+				}
+			}
+		case reflect.Slice:
+			isProto3 := props.Prop[i].proto3
+			switch {
+			case isPointer:
+				panic("bad pointer in byte slice case in " + tf.Name())
+			case tf.Elem().Kind() != reflect.Uint8:
+				panic("bad element kind in byte slice case in " + tf.Name())
+			case isSlice: // E.g., [][]byte
+				mfi.merge = func(dst, src pointer) {
+					sbsp := src.toBytesSlice()
+					if *sbsp != nil {
+						dbsp := dst.toBytesSlice()
+						for _, sb := range *sbsp {
+							if sb == nil {
+								*dbsp = append(*dbsp, nil)
+							} else {
+								*dbsp = append(*dbsp, append([]byte{}, sb...))
+							}
+						}
+						if *dbsp == nil {
+							*dbsp = [][]byte{}
+						}
+					}
+				}
+			default: // E.g., []byte
+				mfi.merge = func(dst, src pointer) {
+					sbp := src.toBytes()
+					if *sbp != nil {
+						dbp := dst.toBytes()
+						if !isProto3 || len(*sbp) > 0 {
+							*dbp = append([]byte{}, *sbp...)
+						}
+					}
+				}
+			}
+		case reflect.Struct:
+			switch {
+			case !isPointer:
+				panic(fmt.Sprintf("message field %s without pointer", tf))
+			case isSlice: // E.g., []*pb.T
+				mi := getMergeInfo(tf)
+				mfi.merge = func(dst, src pointer) {
+					sps := src.getPointerSlice()
+					if sps != nil {
+						dps := dst.getPointerSlice()
+						for _, sp := range sps {
+							var dp pointer
+							if !sp.isNil() {
+								dp = valToPointer(reflect.New(tf))
+								mi.merge(dp, sp)
+							}
+							dps = append(dps, dp)
+						}
+						if dps == nil {
+							dps = []pointer{}
+						}
+						dst.setPointerSlice(dps)
+					}
+				}
+			default: // E.g., *pb.T
+				mi := getMergeInfo(tf)
+				mfi.merge = func(dst, src pointer) {
+					sp := src.getPointer()
+					if !sp.isNil() {
+						dp := dst.getPointer()
+						if dp.isNil() {
+							dp = valToPointer(reflect.New(tf))
+							dst.setPointer(dp)
+						}
+						mi.merge(dp, sp)
+					}
+				}
+			}
+		case reflect.Map:
+			switch {
+			case isPointer || isSlice:
+				panic("bad pointer or slice in map case in " + tf.Name())
+			default: // E.g., map[K]V
+				mfi.merge = func(dst, src pointer) {
+					sm := src.asPointerTo(tf).Elem()
+					if sm.Len() == 0 {
+						return
+					}
+					dm := dst.asPointerTo(tf).Elem()
+					if dm.IsNil() {
+						dm.Set(reflect.MakeMap(tf))
+					}
+
+					switch tf.Elem().Kind() {
+					case reflect.Ptr: // Proto struct (e.g., *T)
+						for _, key := range sm.MapKeys() {
+							val := sm.MapIndex(key)
+							val = reflect.ValueOf(Clone(val.Interface().(Message)))
+							dm.SetMapIndex(key, val)
+						}
+					case reflect.Slice: // E.g. Bytes type (e.g., []byte)
+						for _, key := range sm.MapKeys() {
+							val := sm.MapIndex(key)
+							val = reflect.ValueOf(append([]byte{}, val.Bytes()...))
+							dm.SetMapIndex(key, val)
+						}
+					default: // Basic type (e.g., string)
+						for _, key := range sm.MapKeys() {
+							val := sm.MapIndex(key)
+							dm.SetMapIndex(key, val)
+						}
+					}
+				}
+			}
+		case reflect.Interface:
+			// Must be oneof field.
+			switch {
+			case isPointer || isSlice:
+				panic("bad pointer or slice in interface case in " + tf.Name())
+			default: // E.g., interface{}
+				// TODO: Make this faster?
+				mfi.merge = func(dst, src pointer) {
+					su := src.asPointerTo(tf).Elem()
+					if !su.IsNil() {
+						du := dst.asPointerTo(tf).Elem()
+						typ := su.Elem().Type()
+						if du.IsNil() || du.Elem().Type() != typ {
+							du.Set(reflect.New(typ.Elem())) // Initialize interface if empty
+						}
+						sv := su.Elem().Elem().Field(0)
+						if sv.Kind() == reflect.Ptr && sv.IsNil() {
+							return
+						}
+						dv := du.Elem().Elem().Field(0)
+						if dv.Kind() == reflect.Ptr && dv.IsNil() {
+							dv.Set(reflect.New(sv.Type().Elem())) // Initialize proto message if empty
+						}
+						switch sv.Type().Kind() {
+						case reflect.Ptr: // Proto struct (e.g., *T)
+							Merge(dv.Interface().(Message), sv.Interface().(Message))
+						case reflect.Slice: // E.g. Bytes type (e.g., []byte)
+							dv.Set(reflect.ValueOf(append([]byte{}, sv.Bytes()...)))
+						default: // Basic type (e.g., string)
+							dv.Set(sv)
+						}
+					}
+				}
+			}
+		default:
+			panic(fmt.Sprintf("merger not found for type:%s", tf))
+		}
+		mi.fields = append(mi.fields, mfi)
+	}
+
+	mi.unrecognized = invalidField
+	if f, ok := t.FieldByName("XXX_unrecognized"); ok {
+		if f.Type != reflect.TypeOf([]byte{}) {
+			panic("expected XXX_unrecognized to be of type []byte")
+		}
+		mi.unrecognized = toField(&f)
+	}
+
+	atomic.StoreInt32(&mi.initialized, 1)
+}

log/vendor/github.com/golang/protobuf/proto/text.go

@@ -0,0 +1,843 @@
+// 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.
+
+package proto
+
+// Functions for writing the text protocol buffer format.
+
+import (
+	"bufio"
+	"bytes"
+	"encoding"
+	"errors"
+	"fmt"
+	"io"
+	"log"
+	"math"
+	"reflect"
+	"sort"
+	"strings"
+)
+
+var (
+	newline         = []byte("\n")
+	spaces          = []byte("                                        ")
+	endBraceNewline = []byte("}\n")
+	backslashN      = []byte{'\\', 'n'}
+	backslashR      = []byte{'\\', 'r'}
+	backslashT      = []byte{'\\', 't'}
+	backslashDQ     = []byte{'\\', '"'}
+	backslashBS     = []byte{'\\', '\\'}
+	posInf          = []byte("inf")
+	negInf          = []byte("-inf")
+	nan             = []byte("nan")
+)
+
+type writer interface {
+	io.Writer
+	WriteByte(byte) error
+}
+
+// textWriter is an io.Writer that tracks its indentation level.
+type textWriter struct {
+	ind      int
+	complete bool // if the current position is a complete line
+	compact  bool // whether to write out as a one-liner
+	w        writer
+}
+
+func (w *textWriter) WriteString(s string) (n int, err error) {
+	if !strings.Contains(s, "\n") {
+		if !w.compact && w.complete {
+			w.writeIndent()
+		}
+		w.complete = false
+		return io.WriteString(w.w, s)
+	}
+	// WriteString is typically called without newlines, so this
+	// codepath and its copy are rare.  We copy to avoid
+	// duplicating all of Write's logic here.
+	return w.Write([]byte(s))
+}
+
+func (w *textWriter) Write(p []byte) (n int, err error) {
+	newlines := bytes.Count(p, newline)
+	if newlines == 0 {
+		if !w.compact && w.complete {
+			w.writeIndent()
+		}
+		n, err = w.w.Write(p)
+		w.complete = false
+		return n, err
+	}
+
+	frags := bytes.SplitN(p, newline, newlines+1)
+	if w.compact {
+		for i, frag := range frags {
+			if i > 0 {
+				if err := w.w.WriteByte(' '); err != nil {
+					return n, err
+				}
+				n++
+			}
+			nn, err := w.w.Write(frag)
+			n += nn
+			if err != nil {
+				return n, err
+			}
+		}
+		return n, nil
+	}
+
+	for i, frag := range frags {
+		if w.complete {
+			w.writeIndent()
+		}
+		nn, err := w.w.Write(frag)
+		n += nn
+		if err != nil {
+			return n, err
+		}
+		if i+1 < len(frags) {
+			if err := w.w.WriteByte('\n'); err != nil {
+				return n, err
+			}
+			n++
+		}
+	}
+	w.complete = len(frags[len(frags)-1]) == 0
+	return n, nil
+}
+
+func (w *textWriter) WriteByte(c byte) error {
+	if w.compact && c == '\n' {
+		c = ' '
+	}
+	if !w.compact && w.complete {
+		w.writeIndent()
+	}
+	err := w.w.WriteByte(c)
+	w.complete = c == '\n'
+	return err
+}
+
+func (w *textWriter) indent() { w.ind++ }
+
+func (w *textWriter) unindent() {
+	if w.ind == 0 {
+		log.Print("proto: textWriter unindented too far")
+		return
+	}
+	w.ind--
+}
+
+func writeName(w *textWriter, props *Properties) error {
+	if _, err := w.WriteString(props.OrigName); err != nil {
+		return err
+	}
+	if props.Wire != "group" {
+		return w.WriteByte(':')
+	}
+	return nil
+}
+
+func requiresQuotes(u string) bool {
+	// When type URL contains any characters except [0-9A-Za-z./\-]*, it must be quoted.
+	for _, ch := range u {
+		switch {
+		case ch == '.' || ch == '/' || ch == '_':
+			continue
+		case '0' <= ch && ch <= '9':
+			continue
+		case 'A' <= ch && ch <= 'Z':
+			continue
+		case 'a' <= ch && ch <= 'z':
+			continue
+		default:
+			return true
+		}
+	}
+	return false
+}
+
+// isAny reports whether sv is a google.protobuf.Any message
+func isAny(sv reflect.Value) bool {
+	type wkt interface {
+		XXX_WellKnownType() string
+	}
+	t, ok := sv.Addr().Interface().(wkt)
+	return ok && t.XXX_WellKnownType() == "Any"
+}
+
+// writeProto3Any writes an expanded google.protobuf.Any message.
+//
+// It returns (false, nil) if sv value can't be unmarshaled (e.g. because
+// required messages are not linked in).
+//
+// It returns (true, error) when sv was written in expanded format or an error
+// was encountered.
+func (tm *TextMarshaler) writeProto3Any(w *textWriter, sv reflect.Value) (bool, error) {
+	turl := sv.FieldByName("TypeUrl")
+	val := sv.FieldByName("Value")
+	if !turl.IsValid() || !val.IsValid() {
+		return true, errors.New("proto: invalid google.protobuf.Any message")
+	}
+
+	b, ok := val.Interface().([]byte)
+	if !ok {
+		return true, errors.New("proto: invalid google.protobuf.Any message")
+	}
+
+	parts := strings.Split(turl.String(), "/")
+	mt := MessageType(parts[len(parts)-1])
+	if mt == nil {
+		return false, nil
+	}
+	m := reflect.New(mt.Elem())
+	if err := Unmarshal(b, m.Interface().(Message)); err != nil {
+		return false, nil
+	}
+	w.Write([]byte("["))
+	u := turl.String()
+	if requiresQuotes(u) {
+		writeString(w, u)
+	} else {
+		w.Write([]byte(u))
+	}
+	if w.compact {
+		w.Write([]byte("]:<"))
+	} else {
+		w.Write([]byte("]: <\n"))
+		w.ind++
+	}
+	if err := tm.writeStruct(w, m.Elem()); err != nil {
+		return true, err
+	}
+	if w.compact {
+		w.Write([]byte("> "))
+	} else {
+		w.ind--
+		w.Write([]byte(">\n"))
+	}
+	return true, nil
+}
+
+func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error {
+	if tm.ExpandAny && isAny(sv) {
+		if canExpand, err := tm.writeProto3Any(w, sv); canExpand {
+			return err
+		}
+	}
+	st := sv.Type()
+	sprops := GetProperties(st)
+	for i := 0; i < sv.NumField(); i++ {
+		fv := sv.Field(i)
+		props := sprops.Prop[i]
+		name := st.Field(i).Name
+
+		if name == "XXX_NoUnkeyedLiteral" {
+			continue
+		}
+
+		if strings.HasPrefix(name, "XXX_") {
+			// There are two XXX_ fields:
+			//   XXX_unrecognized []byte
+			//   XXX_extensions   map[int32]proto.Extension
+			// The first is handled here;
+			// the second is handled at the bottom of this function.
+			if name == "XXX_unrecognized" && !fv.IsNil() {
+				if err := writeUnknownStruct(w, fv.Interface().([]byte)); err != nil {
+					return err
+				}
+			}
+			continue
+		}
+		if fv.Kind() == reflect.Ptr && fv.IsNil() {
+			// Field not filled in. This could be an optional field or
+			// a required field that wasn't filled in. Either way, there
+			// isn't anything we can show for it.
+			continue
+		}
+		if fv.Kind() == reflect.Slice && fv.IsNil() {
+			// Repeated field that is empty, or a bytes field that is unused.
+			continue
+		}
+
+		if props.Repeated && fv.Kind() == reflect.Slice {
+			// Repeated field.
+			for j := 0; j < fv.Len(); j++ {
+				if err := writeName(w, props); err != nil {
+					return err
+				}
+				if !w.compact {
+					if err := w.WriteByte(' '); err != nil {
+						return err
+					}
+				}
+				v := fv.Index(j)
+				if v.Kind() == reflect.Ptr && v.IsNil() {
+					// A nil message in a repeated field is not valid,
+					// but we can handle that more gracefully than panicking.
+					if _, err := w.Write([]byte("<nil>\n")); err != nil {
+						return err
+					}
+					continue
+				}
+				if err := tm.writeAny(w, v, props); err != nil {
+					return err
+				}
+				if err := w.WriteByte('\n'); err != nil {
+					return err
+				}
+			}
+			continue
+		}
+		if fv.Kind() == reflect.Map {
+			// Map fields are rendered as a repeated struct with key/value fields.
+			keys := fv.MapKeys()
+			sort.Sort(mapKeys(keys))
+			for _, key := range keys {
+				val := fv.MapIndex(key)
+				if err := writeName(w, props); err != nil {
+					return err
+				}
+				if !w.compact {
+					if err := w.WriteByte(' '); err != nil {
+						return err
+					}
+				}
+				// open struct
+				if err := w.WriteByte('<'); err != nil {
+					return err
+				}
+				if !w.compact {
+					if err := w.WriteByte('\n'); err != nil {
+						return err
+					}
+				}
+				w.indent()
+				// key
+				if _, err := w.WriteString("key:"); err != nil {
+					return err
+				}
+				if !w.compact {
+					if err := w.WriteByte(' '); err != nil {
+						return err
+					}
+				}
+				if err := tm.writeAny(w, key, props.MapKeyProp); err != nil {
+					return err
+				}
+				if err := w.WriteByte('\n'); err != nil {
+					return err
+				}
+				// nil values aren't legal, but we can avoid panicking because of them.
+				if val.Kind() != reflect.Ptr || !val.IsNil() {
+					// value
+					if _, err := w.WriteString("value:"); err != nil {
+						return err
+					}
+					if !w.compact {
+						if err := w.WriteByte(' '); err != nil {
+							return err
+						}
+					}
+					if err := tm.writeAny(w, val, props.MapValProp); err != nil {
+						return err
+					}
+					if err := w.WriteByte('\n'); err != nil {
+						return err
+					}
+				}
+				// close struct
+				w.unindent()
+				if err := w.WriteByte('>'); err != nil {
+					return err
+				}
+				if err := w.WriteByte('\n'); err != nil {
+					return err
+				}
+			}
+			continue
+		}
+		if props.proto3 && fv.Kind() == reflect.Slice && fv.Len() == 0 {
+			// empty bytes field
+			continue
+		}
+		if fv.Kind() != reflect.Ptr && fv.Kind() != reflect.Slice {
+			// proto3 non-repeated scalar field; skip if zero value
+			if isProto3Zero(fv) {
+				continue
+			}
+		}
+
+		if fv.Kind() == reflect.Interface {
+			// Check if it is a oneof.
+			if st.Field(i).Tag.Get("protobuf_oneof") != "" {
+				// fv is nil, or holds a pointer to generated struct.
+				// That generated struct has exactly one field,
+				// which has a protobuf struct tag.
+				if fv.IsNil() {
+					continue
+				}
+				inner := fv.Elem().Elem() // interface -> *T -> T
+				tag := inner.Type().Field(0).Tag.Get("protobuf")
+				props = new(Properties) // Overwrite the outer props var, but not its pointee.
+				props.Parse(tag)
+				// Write the value in the oneof, not the oneof itself.
+				fv = inner.Field(0)
+
+				// Special case to cope with malformed messages gracefully:
+				// If the value in the oneof is a nil pointer, don't panic
+				// in writeAny.
+				if fv.Kind() == reflect.Ptr && fv.IsNil() {
+					// Use errors.New so writeAny won't render quotes.
+					msg := errors.New("/* nil */")
+					fv = reflect.ValueOf(&msg).Elem()
+				}
+			}
+		}
+
+		if err := writeName(w, props); err != nil {
+			return err
+		}
+		if !w.compact {
+			if err := w.WriteByte(' '); err != nil {
+				return err
+			}
+		}
+
+		// Enums have a String method, so writeAny will work fine.
+		if err := tm.writeAny(w, fv, props); err != nil {
+			return err
+		}
+
+		if err := w.WriteByte('\n'); err != nil {
+			return err
+		}
+	}
+
+	// Extensions (the XXX_extensions field).
+	pv := sv.Addr()
+	if _, err := extendable(pv.Interface()); err == nil {
+		if err := tm.writeExtensions(w, pv); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// writeAny writes an arbitrary field.
+func (tm *TextMarshaler) writeAny(w *textWriter, v reflect.Value, props *Properties) error {
+	v = reflect.Indirect(v)
+
+	// Floats have special cases.
+	if v.Kind() == reflect.Float32 || v.Kind() == reflect.Float64 {
+		x := v.Float()
+		var b []byte
+		switch {
+		case math.IsInf(x, 1):
+			b = posInf
+		case math.IsInf(x, -1):
+			b = negInf
+		case math.IsNaN(x):
+			b = nan
+		}
+		if b != nil {
+			_, err := w.Write(b)
+			return err
+		}
+		// Other values are handled below.
+	}
+
+	// We don't attempt to serialise every possible value type; only those
+	// that can occur in protocol buffers.
+	switch v.Kind() {
+	case reflect.Slice:
+		// Should only be a []byte; repeated fields are handled in writeStruct.
+		if err := writeString(w, string(v.Bytes())); err != nil {
+			return err
+		}
+	case reflect.String:
+		if err := writeString(w, v.String()); err != nil {
+			return err
+		}
+	case reflect.Struct:
+		// Required/optional group/message.
+		var bra, ket byte = '<', '>'
+		if props != nil && props.Wire == "group" {
+			bra, ket = '{', '}'
+		}
+		if err := w.WriteByte(bra); err != nil {
+			return err
+		}
+		if !w.compact {
+			if err := w.WriteByte('\n'); err != nil {
+				return err
+			}
+		}
+		w.indent()
+		if v.CanAddr() {
+			// Calling v.Interface on a struct causes the reflect package to
+			// copy the entire struct. This is racy with the new Marshaler
+			// since we atomically update the XXX_sizecache.
+			//
+			// Thus, we retrieve a pointer to the struct if possible to avoid
+			// a race since v.Interface on the pointer doesn't copy the struct.
+			//
+			// If v is not addressable, then we are not worried about a race
+			// since it implies that the binary Marshaler cannot possibly be
+			// mutating this value.
+			v = v.Addr()
+		}
+		if etm, ok := v.Interface().(encoding.TextMarshaler); ok {
+			text, err := etm.MarshalText()
+			if err != nil {
+				return err
+			}
+			if _, err = w.Write(text); err != nil {
+				return err
+			}
+		} else {
+			if v.Kind() == reflect.Ptr {
+				v = v.Elem()
+			}
+			if err := tm.writeStruct(w, v); err != nil {
+				return err
+			}
+		}
+		w.unindent()
+		if err := w.WriteByte(ket); err != nil {
+			return err
+		}
+	default:
+		_, err := fmt.Fprint(w, v.Interface())
+		return err
+	}
+	return nil
+}
+
+// equivalent to C's isprint.
+func isprint(c byte) bool {
+	return c >= 0x20 && c < 0x7f
+}
+
+// writeString writes a string in the protocol buffer text format.
+// It is similar to strconv.Quote except we don't use Go escape sequences,
+// we treat the string as a byte sequence, and we use octal escapes.
+// These differences are to maintain interoperability with the other
+// languages' implementations of the text format.
+func writeString(w *textWriter, s string) error {
+	// use WriteByte here to get any needed indent
+	if err := w.WriteByte('"'); err != nil {
+		return err
+	}
+	// Loop over the bytes, not the runes.
+	for i := 0; i < len(s); i++ {
+		var err error
+		// Divergence from C++: we don't escape apostrophes.
+		// There's no need to escape them, and the C++ parser
+		// copes with a naked apostrophe.
+		switch c := s[i]; c {
+		case '\n':
+			_, err = w.w.Write(backslashN)
+		case '\r':
+			_, err = w.w.Write(backslashR)
+		case '\t':
+			_, err = w.w.Write(backslashT)
+		case '"':
+			_, err = w.w.Write(backslashDQ)
+		case '\\':
+			_, err = w.w.Write(backslashBS)
+		default:
+			if isprint(c) {
+				err = w.w.WriteByte(c)
+			} else {
+				_, err = fmt.Fprintf(w.w, "\\%03o", c)
+			}
+		}
+		if err != nil {
+			return err
+		}
+	}
+	return w.WriteByte('"')
+}
+
+func writeUnknownStruct(w *textWriter, data []byte) (err error) {
+	if !w.compact {
+		if _, err := fmt.Fprintf(w, "/* %d unknown bytes */\n", len(data)); err != nil {
+			return err
+		}
+	}
+	b := NewBuffer(data)
+	for b.index < len(b.buf) {
+		x, err := b.DecodeVarint()
+		if err != nil {
+			_, err := fmt.Fprintf(w, "/* %v */\n", err)
+			return err
+		}
+		wire, tag := x&7, x>>3
+		if wire == WireEndGroup {
+			w.unindent()
+			if _, err := w.Write(endBraceNewline); err != nil {
+				return err
+			}
+			continue
+		}
+		if _, err := fmt.Fprint(w, tag); err != nil {
+			return err
+		}
+		if wire != WireStartGroup {
+			if err := w.WriteByte(':'); err != nil {
+				return err
+			}
+		}
+		if !w.compact || wire == WireStartGroup {
+			if err := w.WriteByte(' '); err != nil {
+				return err
+			}
+		}
+		switch wire {
+		case WireBytes:
+			buf, e := b.DecodeRawBytes(false)
+			if e == nil {
+				_, err = fmt.Fprintf(w, "%q", buf)
+			} else {
+				_, err = fmt.Fprintf(w, "/* %v */", e)
+			}
+		case WireFixed32:
+			x, err = b.DecodeFixed32()
+			err = writeUnknownInt(w, x, err)
+		case WireFixed64:
+			x, err = b.DecodeFixed64()
+			err = writeUnknownInt(w, x, err)
+		case WireStartGroup:
+			err = w.WriteByte('{')
+			w.indent()
+		case WireVarint:
+			x, err = b.DecodeVarint()
+			err = writeUnknownInt(w, x, err)
+		default:
+			_, err = fmt.Fprintf(w, "/* unknown wire type %d */", wire)
+		}
+		if err != nil {
+			return err
+		}
+		if err = w.WriteByte('\n'); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func writeUnknownInt(w *textWriter, x uint64, err error) error {
+	if err == nil {
+		_, err = fmt.Fprint(w, x)
+	} else {
+		_, err = fmt.Fprintf(w, "/* %v */", err)
+	}
+	return err
+}
+
+type int32Slice []int32
+
+func (s int32Slice) Len() int           { return len(s) }
+func (s int32Slice) Less(i, j int) bool { return s[i] < s[j] }
+func (s int32Slice) Swap(i, j int)      { s[i], s[j] = s[j], s[i] }
+
+// writeExtensions writes all the extensions in pv.
+// pv is assumed to be a pointer to a protocol message struct that is extendable.
+func (tm *TextMarshaler) writeExtensions(w *textWriter, pv reflect.Value) error {
+	emap := extensionMaps[pv.Type().Elem()]
+	ep, _ := extendable(pv.Interface())
+
+	// Order the extensions by ID.
+	// This isn't strictly necessary, but it will give us
+	// canonical output, which will also make testing easier.
+	m, mu := ep.extensionsRead()
+	if m == nil {
+		return nil
+	}
+	mu.Lock()
+	ids := make([]int32, 0, len(m))
+	for id := range m {
+		ids = append(ids, id)
+	}
+	sort.Sort(int32Slice(ids))
+	mu.Unlock()
+
+	for _, extNum := range ids {
+		ext := m[extNum]
+		var desc *ExtensionDesc
+		if emap != nil {
+			desc = emap[extNum]
+		}
+		if desc == nil {
+			// Unknown extension.
+			if err := writeUnknownStruct(w, ext.enc); err != nil {
+				return err
+			}
+			continue
+		}
+
+		pb, err := GetExtension(ep, desc)
+		if err != nil {
+			return fmt.Errorf("failed getting extension: %v", err)
+		}
+
+		// Repeated extensions will appear as a slice.
+		if !desc.repeated() {
+			if err := tm.writeExtension(w, desc.Name, pb); err != nil {
+				return err
+			}
+		} else {
+			v := reflect.ValueOf(pb)
+			for i := 0; i < v.Len(); i++ {
+				if err := tm.writeExtension(w, desc.Name, v.Index(i).Interface()); err != nil {
+					return err
+				}
+			}
+		}
+	}
+	return nil
+}
+
+func (tm *TextMarshaler) writeExtension(w *textWriter, name string, pb interface{}) error {
+	if _, err := fmt.Fprintf(w, "[%s]:", name); err != nil {
+		return err
+	}
+	if !w.compact {
+		if err := w.WriteByte(' '); err != nil {
+			return err
+		}
+	}
+	if err := tm.writeAny(w, reflect.ValueOf(pb), nil); err != nil {
+		return err
+	}
+	if err := w.WriteByte('\n'); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (w *textWriter) writeIndent() {
+	if !w.complete {
+		return
+	}
+	remain := w.ind * 2
+	for remain > 0 {
+		n := remain
+		if n > len(spaces) {
+			n = len(spaces)
+		}
+		w.w.Write(spaces[:n])
+		remain -= n
+	}
+	w.complete = false
+}
+
+// TextMarshaler is a configurable text format marshaler.
+type TextMarshaler struct {
+	Compact   bool // use compact text format (one line).
+	ExpandAny bool // expand google.protobuf.Any messages of known types
+}
+
+// Marshal writes a given protocol buffer in text format.
+// The only errors returned are from w.
+func (tm *TextMarshaler) Marshal(w io.Writer, pb Message) error {
+	val := reflect.ValueOf(pb)
+	if pb == nil || val.IsNil() {
+		w.Write([]byte("<nil>"))
+		return nil
+	}
+	var bw *bufio.Writer
+	ww, ok := w.(writer)
+	if !ok {
+		bw = bufio.NewWriter(w)
+		ww = bw
+	}
+	aw := &textWriter{
+		w:        ww,
+		complete: true,
+		compact:  tm.Compact,
+	}
+
+	if etm, ok := pb.(encoding.TextMarshaler); ok {
+		text, err := etm.MarshalText()
+		if err != nil {
+			return err
+		}
+		if _, err = aw.Write(text); err != nil {
+			return err
+		}
+		if bw != nil {
+			return bw.Flush()
+		}
+		return nil
+	}
+	// Dereference the received pointer so we don't have outer < and >.
+	v := reflect.Indirect(val)
+	if err := tm.writeStruct(aw, v); err != nil {
+		return err
+	}
+	if bw != nil {
+		return bw.Flush()
+	}
+	return nil
+}
+
+// Text is the same as Marshal, but returns the string directly.
+func (tm *TextMarshaler) Text(pb Message) string {
+	var buf bytes.Buffer
+	tm.Marshal(&buf, pb)
+	return buf.String()
+}
+
+var (
+	defaultTextMarshaler = TextMarshaler{}
+	compactTextMarshaler = TextMarshaler{Compact: true}
+)
+
+// TODO: consider removing some of the Marshal functions below.
+
+// MarshalText writes a given protocol buffer in text format.
+// The only errors returned are from w.
+func MarshalText(w io.Writer, pb Message) error { return defaultTextMarshaler.Marshal(w, pb) }
+
+// MarshalTextString is the same as MarshalText, but returns the string directly.
+func MarshalTextString(pb Message) string { return defaultTextMarshaler.Text(pb) }
+
+// CompactText writes a given protocol buffer in compact text format (one line).
+func CompactText(w io.Writer, pb Message) error { return compactTextMarshaler.Marshal(w, pb) }
+
+// CompactTextString is the same as CompactText, but returns the string directly.
+func CompactTextString(pb Message) string { return compactTextMarshaler.Text(pb) }

log/vendor/github.com/golang/protobuf/proto/text_parser.go

@@ -0,0 +1,880 @@
+// 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.
+
+package proto
+
+// Functions for parsing the Text protocol buffer format.
+// TODO: message sets.
+
+import (
+	"encoding"
+	"errors"
+	"fmt"
+	"reflect"
+	"strconv"
+	"strings"
+	"unicode/utf8"
+)
+
+// Error string emitted when deserializing Any and fields are already set
+const anyRepeatedlyUnpacked = "Any message unpacked multiple times, or %q already set"
+
+type ParseError struct {
+	Message string
+	Line    int // 1-based line number
+	Offset  int // 0-based byte offset from start of input
+}
+
+func (p *ParseError) Error() string {
+	if p.Line == 1 {
+		// show offset only for first line
+		return fmt.Sprintf("line 1.%d: %v", p.Offset, p.Message)
+	}
+	return fmt.Sprintf("line %d: %v", p.Line, p.Message)
+}
+
+type token struct {
+	value    string
+	err      *ParseError
+	line     int    // line number
+	offset   int    // byte number from start of input, not start of line
+	unquoted string // the unquoted version of value, if it was a quoted string
+}
+
+func (t *token) String() string {
+	if t.err == nil {
+		return fmt.Sprintf("%q (line=%d, offset=%d)", t.value, t.line, t.offset)
+	}
+	return fmt.Sprintf("parse error: %v", t.err)
+}
+
+type textParser struct {
+	s            string // remaining input
+	done         bool   // whether the parsing is finished (success or error)
+	backed       bool   // whether back() was called
+	offset, line int
+	cur          token
+}
+
+func newTextParser(s string) *textParser {
+	p := new(textParser)
+	p.s = s
+	p.line = 1
+	p.cur.line = 1
+	return p
+}
+
+func (p *textParser) errorf(format string, a ...interface{}) *ParseError {
+	pe := &ParseError{fmt.Sprintf(format, a...), p.cur.line, p.cur.offset}
+	p.cur.err = pe
+	p.done = true
+	return pe
+}
+
+// Numbers and identifiers are matched by [-+._A-Za-z0-9]
+func isIdentOrNumberChar(c byte) bool {
+	switch {
+	case 'A' <= c && c <= 'Z', 'a' <= c && c <= 'z':
+		return true
+	case '0' <= c && c <= '9':
+		return true
+	}
+	switch c {
+	case '-', '+', '.', '_':
+		return true
+	}
+	return false
+}
+
+func isWhitespace(c byte) bool {
+	switch c {
+	case ' ', '\t', '\n', '\r':
+		return true
+	}
+	return false
+}
+
+func isQuote(c byte) bool {
+	switch c {
+	case '"', '\'':
+		return true
+	}
+	return false
+}
+
+func (p *textParser) skipWhitespace() {
+	i := 0
+	for i < len(p.s) && (isWhitespace(p.s[i]) || p.s[i] == '#') {
+		if p.s[i] == '#' {
+			// comment; skip to end of line or input
+			for i < len(p.s) && p.s[i] != '\n' {
+				i++
+			}
+			if i == len(p.s) {
+				break
+			}
+		}
+		if p.s[i] == '\n' {
+			p.line++
+		}
+		i++
+	}
+	p.offset += i
+	p.s = p.s[i:len(p.s)]
+	if len(p.s) == 0 {
+		p.done = true
+	}
+}
+
+func (p *textParser) advance() {
+	// Skip whitespace
+	p.skipWhitespace()
+	if p.done {
+		return
+	}
+
+	// Start of non-whitespace
+	p.cur.err = nil
+	p.cur.offset, p.cur.line = p.offset, p.line
+	p.cur.unquoted = ""
+	switch p.s[0] {
+	case '<', '>', '{', '}', ':', '[', ']', ';', ',', '/':
+		// Single symbol
+		p.cur.value, p.s = p.s[0:1], p.s[1:len(p.s)]
+	case '"', '\'':
+		// Quoted string
+		i := 1
+		for i < len(p.s) && p.s[i] != p.s[0] && p.s[i] != '\n' {
+			if p.s[i] == '\\' && i+1 < len(p.s) {
+				// skip escaped char
+				i++
+			}
+			i++
+		}
+		if i >= len(p.s) || p.s[i] != p.s[0] {
+			p.errorf("unmatched quote")
+			return
+		}
+		unq, err := unquoteC(p.s[1:i], rune(p.s[0]))
+		if err != nil {
+			p.errorf("invalid quoted string %s: %v", p.s[0:i+1], err)
+			return
+		}
+		p.cur.value, p.s = p.s[0:i+1], p.s[i+1:len(p.s)]
+		p.cur.unquoted = unq
+	default:
+		i := 0
+		for i < len(p.s) && isIdentOrNumberChar(p.s[i]) {
+			i++
+		}
+		if i == 0 {
+			p.errorf("unexpected byte %#x", p.s[0])
+			return
+		}
+		p.cur.value, p.s = p.s[0:i], p.s[i:len(p.s)]
+	}
+	p.offset += len(p.cur.value)
+}
+
+var (
+	errBadUTF8 = errors.New("proto: bad UTF-8")
+)
+
+func unquoteC(s string, quote rune) (string, error) {
+	// This is based on C++'s tokenizer.cc.
+	// Despite its name, this is *not* parsing C syntax.
+	// For instance, "\0" is an invalid quoted string.
+
+	// Avoid allocation in trivial cases.
+	simple := true
+	for _, r := range s {
+		if r == '\\' || r == quote {
+			simple = false
+			break
+		}
+	}
+	if simple {
+		return s, nil
+	}
+
+	buf := make([]byte, 0, 3*len(s)/2)
+	for len(s) > 0 {
+		r, n := utf8.DecodeRuneInString(s)
+		if r == utf8.RuneError && n == 1 {
+			return "", errBadUTF8
+		}
+		s = s[n:]
+		if r != '\\' {
+			if r < utf8.RuneSelf {
+				buf = append(buf, byte(r))
+			} else {
+				buf = append(buf, string(r)...)
+			}
+			continue
+		}
+
+		ch, tail, err := unescape(s)
+		if err != nil {
+			return "", err
+		}
+		buf = append(buf, ch...)
+		s = tail
+	}
+	return string(buf), nil
+}
+
+func unescape(s string) (ch string, tail string, err error) {
+	r, n := utf8.DecodeRuneInString(s)
+	if r == utf8.RuneError && n == 1 {
+		return "", "", errBadUTF8
+	}
+	s = s[n:]
+	switch r {
+	case 'a':
+		return "\a", s, nil
+	case 'b':
+		return "\b", s, nil
+	case 'f':
+		return "\f", s, nil
+	case 'n':
+		return "\n", s, nil
+	case 'r':
+		return "\r", s, nil
+	case 't':
+		return "\t", s, nil
+	case 'v':
+		return "\v", s, nil
+	case '?':
+		return "?", s, nil // trigraph workaround
+	case '\'', '"', '\\':
+		return string(r), s, nil
+	case '0', '1', '2', '3', '4', '5', '6', '7':
+		if len(s) < 2 {
+			return "", "", fmt.Errorf(`\%c requires 2 following digits`, r)
+		}
+		ss := string(r) + s[:2]
+		s = s[2:]
+		i, err := strconv.ParseUint(ss, 8, 8)
+		if err != nil {
+			return "", "", fmt.Errorf(`\%s contains non-octal digits`, ss)
+		}
+		return string([]byte{byte(i)}), s, nil
+	case 'x', 'X', 'u', 'U':
+		var n int
+		switch r {
+		case 'x', 'X':
+			n = 2
+		case 'u':
+			n = 4
+		case 'U':
+			n = 8
+		}
+		if len(s) < n {
+			return "", "", fmt.Errorf(`\%c requires %d following digits`, r, n)
+		}
+		ss := s[:n]
+		s = s[n:]
+		i, err := strconv.ParseUint(ss, 16, 64)
+		if err != nil {
+			return "", "", fmt.Errorf(`\%c%s contains non-hexadecimal digits`, r, ss)
+		}
+		if r == 'x' || r == 'X' {
+			return string([]byte{byte(i)}), s, nil
+		}
+		if i > utf8.MaxRune {
+			return "", "", fmt.Errorf(`\%c%s is not a valid Unicode code point`, r, ss)
+		}
+		return string(i), s, nil
+	}
+	return "", "", fmt.Errorf(`unknown escape \%c`, r)
+}
+
+// Back off the parser by one token. Can only be done between calls to next().
+// It makes the next advance() a no-op.
+func (p *textParser) back() { p.backed = true }
+
+// Advances the parser and returns the new current token.
+func (p *textParser) next() *token {
+	if p.backed || p.done {
+		p.backed = false
+		return &p.cur
+	}
+	p.advance()
+	if p.done {
+		p.cur.value = ""
+	} else if len(p.cur.value) > 0 && isQuote(p.cur.value[0]) {
+		// Look for multiple quoted strings separated by whitespace,
+		// and concatenate them.
+		cat := p.cur
+		for {
+			p.skipWhitespace()
+			if p.done || !isQuote(p.s[0]) {
+				break
+			}
+			p.advance()
+			if p.cur.err != nil {
+				return &p.cur
+			}
+			cat.value += " " + p.cur.value
+			cat.unquoted += p.cur.unquoted
+		}
+		p.done = false // parser may have seen EOF, but we want to return cat
+		p.cur = cat
+	}
+	return &p.cur
+}
+
+func (p *textParser) consumeToken(s string) error {
+	tok := p.next()
+	if tok.err != nil {
+		return tok.err
+	}
+	if tok.value != s {
+		p.back()
+		return p.errorf("expected %q, found %q", s, tok.value)
+	}
+	return nil
+}
+
+// Return a RequiredNotSetError indicating which required field was not set.
+func (p *textParser) missingRequiredFieldError(sv reflect.Value) *RequiredNotSetError {
+	st := sv.Type()
+	sprops := GetProperties(st)
+	for i := 0; i < st.NumField(); i++ {
+		if !isNil(sv.Field(i)) {
+			continue
+		}
+
+		props := sprops.Prop[i]
+		if props.Required {
+			return &RequiredNotSetError{fmt.Sprintf("%v.%v", st, props.OrigName)}
+		}
+	}
+	return &RequiredNotSetError{fmt.Sprintf("%v.<unknown field name>", st)} // should not happen
+}
+
+// Returns the index in the struct for the named field, as well as the parsed tag properties.
+func structFieldByName(sprops *StructProperties, name string) (int, *Properties, bool) {
+	i, ok := sprops.decoderOrigNames[name]
+	if ok {
+		return i, sprops.Prop[i], true
+	}
+	return -1, nil, false
+}
+
+// Consume a ':' from the input stream (if the next token is a colon),
+// returning an error if a colon is needed but not present.
+func (p *textParser) checkForColon(props *Properties, typ reflect.Type) *ParseError {
+	tok := p.next()
+	if tok.err != nil {
+		return tok.err
+	}
+	if tok.value != ":" {
+		// Colon is optional when the field is a group or message.
+		needColon := true
+		switch props.Wire {
+		case "group":
+			needColon = false
+		case "bytes":
+			// A "bytes" field is either a message, a string, or a repeated field;
+			// those three become *T, *string and []T respectively, so we can check for
+			// this field being a pointer to a non-string.
+			if typ.Kind() == reflect.Ptr {
+				// *T or *string
+				if typ.Elem().Kind() == reflect.String {
+					break
+				}
+			} else if typ.Kind() == reflect.Slice {
+				// []T or []*T
+				if typ.Elem().Kind() != reflect.Ptr {
+					break
+				}
+			} else if typ.Kind() == reflect.String {
+				// The proto3 exception is for a string field,
+				// which requires a colon.
+				break
+			}
+			needColon = false
+		}
+		if needColon {
+			return p.errorf("expected ':', found %q", tok.value)
+		}
+		p.back()
+	}
+	return nil
+}
+
+func (p *textParser) readStruct(sv reflect.Value, terminator string) error {
+	st := sv.Type()
+	sprops := GetProperties(st)
+	reqCount := sprops.reqCount
+	var reqFieldErr error
+	fieldSet := make(map[string]bool)
+	// A struct is a sequence of "name: value", terminated by one of
+	// '>' or '}', or the end of the input.  A name may also be
+	// "[extension]" or "[type/url]".
+	//
+	// The whole struct can also be an expanded Any message, like:
+	// [type/url] < ... struct contents ... >
+	for {
+		tok := p.next()
+		if tok.err != nil {
+			return tok.err
+		}
+		if tok.value == terminator {
+			break
+		}
+		if tok.value == "[" {
+			// Looks like an extension or an Any.
+			//
+			// TODO: Check whether we need to handle
+			// namespace rooted names (e.g. ".something.Foo").
+			extName, err := p.consumeExtName()
+			if err != nil {
+				return err
+			}
+
+			if s := strings.LastIndex(extName, "/"); s >= 0 {
+				// If it contains a slash, it's an Any type URL.
+				messageName := extName[s+1:]
+				mt := MessageType(messageName)
+				if mt == nil {
+					return p.errorf("unrecognized message %q in google.protobuf.Any", messageName)
+				}
+				tok = p.next()
+				if tok.err != nil {
+					return tok.err
+				}
+				// consume an optional colon
+				if tok.value == ":" {
+					tok = p.next()
+					if tok.err != nil {
+						return tok.err
+					}
+				}
+				var terminator string
+				switch tok.value {
+				case "<":
+					terminator = ">"
+				case "{":
+					terminator = "}"
+				default:
+					return p.errorf("expected '{' or '<', found %q", tok.value)
+				}
+				v := reflect.New(mt.Elem())
+				if pe := p.readStruct(v.Elem(), terminator); pe != nil {
+					return pe
+				}
+				b, err := Marshal(v.Interface().(Message))
+				if err != nil {
+					return p.errorf("failed to marshal message of type %q: %v", messageName, err)
+				}
+				if fieldSet["type_url"] {
+					return p.errorf(anyRepeatedlyUnpacked, "type_url")
+				}
+				if fieldSet["value"] {
+					return p.errorf(anyRepeatedlyUnpacked, "value")
+				}
+				sv.FieldByName("TypeUrl").SetString(extName)
+				sv.FieldByName("Value").SetBytes(b)
+				fieldSet["type_url"] = true
+				fieldSet["value"] = true
+				continue
+			}
+
+			var desc *ExtensionDesc
+			// This could be faster, but it's functional.
+			// TODO: Do something smarter than a linear scan.
+			for _, d := range RegisteredExtensions(reflect.New(st).Interface().(Message)) {
+				if d.Name == extName {
+					desc = d
+					break
+				}
+			}
+			if desc == nil {
+				return p.errorf("unrecognized extension %q", extName)
+			}
+
+			props := &Properties{}
+			props.Parse(desc.Tag)
+
+			typ := reflect.TypeOf(desc.ExtensionType)
+			if err := p.checkForColon(props, typ); err != nil {
+				return err
+			}
+
+			rep := desc.repeated()
+
+			// Read the extension structure, and set it in
+			// the value we're constructing.
+			var ext reflect.Value
+			if !rep {
+				ext = reflect.New(typ).Elem()
+			} else {
+				ext = reflect.New(typ.Elem()).Elem()
+			}
+			if err := p.readAny(ext, props); err != nil {
+				if _, ok := err.(*RequiredNotSetError); !ok {
+					return err
+				}
+				reqFieldErr = err
+			}
+			ep := sv.Addr().Interface().(Message)
+			if !rep {
+				SetExtension(ep, desc, ext.Interface())
+			} else {
+				old, err := GetExtension(ep, desc)
+				var sl reflect.Value
+				if err == nil {
+					sl = reflect.ValueOf(old) // existing slice
+				} else {
+					sl = reflect.MakeSlice(typ, 0, 1)
+				}
+				sl = reflect.Append(sl, ext)
+				SetExtension(ep, desc, sl.Interface())
+			}
+			if err := p.consumeOptionalSeparator(); err != nil {
+				return err
+			}
+			continue
+		}
+
+		// This is a normal, non-extension field.
+		name := tok.value
+		var dst reflect.Value
+		fi, props, ok := structFieldByName(sprops, name)
+		if ok {
+			dst = sv.Field(fi)
+		} else if oop, ok := sprops.OneofTypes[name]; ok {
+			// It is a oneof.
+			props = oop.Prop
+			nv := reflect.New(oop.Type.Elem())
+			dst = nv.Elem().Field(0)
+			field := sv.Field(oop.Field)
+			if !field.IsNil() {
+				return p.errorf("field '%s' would overwrite already parsed oneof '%s'", name, sv.Type().Field(oop.Field).Name)
+			}
+			field.Set(nv)
+		}
+		if !dst.IsValid() {
+			return p.errorf("unknown field name %q in %v", name, st)
+		}
+
+		if dst.Kind() == reflect.Map {
+			// Consume any colon.
+			if err := p.checkForColon(props, dst.Type()); err != nil {
+				return err
+			}
+
+			// Construct the map if it doesn't already exist.
+			if dst.IsNil() {
+				dst.Set(reflect.MakeMap(dst.Type()))
+			}
+			key := reflect.New(dst.Type().Key()).Elem()
+			val := reflect.New(dst.Type().Elem()).Elem()
+
+			// The map entry should be this sequence of tokens:
+			//	< key : KEY value : VALUE >
+			// However, implementations may omit key or value, and technically
+			// we should support them in any order.  See b/28924776 for a time
+			// this went wrong.
+
+			tok := p.next()
+			var terminator string
+			switch tok.value {
+			case "<":
+				terminator = ">"
+			case "{":
+				terminator = "}"
+			default:
+				return p.errorf("expected '{' or '<', found %q", tok.value)
+			}
+			for {
+				tok := p.next()
+				if tok.err != nil {
+					return tok.err
+				}
+				if tok.value == terminator {
+					break
+				}
+				switch tok.value {
+				case "key":
+					if err := p.consumeToken(":"); err != nil {
+						return err
+					}
+					if err := p.readAny(key, props.MapKeyProp); err != nil {
+						return err
+					}
+					if err := p.consumeOptionalSeparator(); err != nil {
+						return err
+					}
+				case "value":
+					if err := p.checkForColon(props.MapValProp, dst.Type().Elem()); err != nil {
+						return err
+					}
+					if err := p.readAny(val, props.MapValProp); err != nil {
+						return err
+					}
+					if err := p.consumeOptionalSeparator(); err != nil {
+						return err
+					}
+				default:
+					p.back()
+					return p.errorf(`expected "key", "value", or %q, found %q`, terminator, tok.value)
+				}
+			}
+
+			dst.SetMapIndex(key, val)
+			continue
+		}
+
+		// Check that it's not already set if it's not a repeated field.
+		if !props.Repeated && fieldSet[name] {
+			return p.errorf("non-repeated field %q was repeated", name)
+		}
+
+		if err := p.checkForColon(props, dst.Type()); err != nil {
+			return err
+		}
+
+		// Parse into the field.
+		fieldSet[name] = true
+		if err := p.readAny(dst, props); err != nil {
+			if _, ok := err.(*RequiredNotSetError); !ok {
+				return err
+			}
+			reqFieldErr = err
+		}
+		if props.Required {
+			reqCount--
+		}
+
+		if err := p.consumeOptionalSeparator(); err != nil {
+			return err
+		}
+
+	}
+
+	if reqCount > 0 {
+		return p.missingRequiredFieldError(sv)
+	}
+	return reqFieldErr
+}
+
+// consumeExtName consumes extension name or expanded Any type URL and the
+// following ']'. It returns the name or URL consumed.
+func (p *textParser) consumeExtName() (string, error) {
+	tok := p.next()
+	if tok.err != nil {
+		return "", tok.err
+	}
+
+	// If extension name or type url is quoted, it's a single token.
+	if len(tok.value) > 2 && isQuote(tok.value[0]) && tok.value[len(tok.value)-1] == tok.value[0] {
+		name, err := unquoteC(tok.value[1:len(tok.value)-1], rune(tok.value[0]))
+		if err != nil {
+			return "", err
+		}
+		return name, p.consumeToken("]")
+	}
+
+	// Consume everything up to "]"
+	var parts []string
+	for tok.value != "]" {
+		parts = append(parts, tok.value)
+		tok = p.next()
+		if tok.err != nil {
+			return "", p.errorf("unrecognized type_url or extension name: %s", tok.err)
+		}
+		if p.done && tok.value != "]" {
+			return "", p.errorf("unclosed type_url or extension name")
+		}
+	}
+	return strings.Join(parts, ""), nil
+}
+
+// consumeOptionalSeparator consumes an optional semicolon or comma.
+// It is used in readStruct to provide backward compatibility.
+func (p *textParser) consumeOptionalSeparator() error {
+	tok := p.next()
+	if tok.err != nil {
+		return tok.err
+	}
+	if tok.value != ";" && tok.value != "," {
+		p.back()
+	}
+	return nil
+}
+
+func (p *textParser) readAny(v reflect.Value, props *Properties) error {
+	tok := p.next()
+	if tok.err != nil {
+		return tok.err
+	}
+	if tok.value == "" {
+		return p.errorf("unexpected EOF")
+	}
+
+	switch fv := v; fv.Kind() {
+	case reflect.Slice:
+		at := v.Type()
+		if at.Elem().Kind() == reflect.Uint8 {
+			// Special case for []byte
+			if tok.value[0] != '"' && tok.value[0] != '\'' {
+				// Deliberately written out here, as the error after
+				// this switch statement would write "invalid []byte: ...",
+				// which is not as user-friendly.
+				return p.errorf("invalid string: %v", tok.value)
+			}
+			bytes := []byte(tok.unquoted)
+			fv.Set(reflect.ValueOf(bytes))
+			return nil
+		}
+		// Repeated field.
+		if tok.value == "[" {
+			// Repeated field with list notation, like [1,2,3].
+			for {
+				fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem()))
+				err := p.readAny(fv.Index(fv.Len()-1), props)
+				if err != nil {
+					return err
+				}
+				tok := p.next()
+				if tok.err != nil {
+					return tok.err
+				}
+				if tok.value == "]" {
+					break
+				}
+				if tok.value != "," {
+					return p.errorf("Expected ']' or ',' found %q", tok.value)
+				}
+			}
+			return nil
+		}
+		// One value of the repeated field.
+		p.back()
+		fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem()))
+		return p.readAny(fv.Index(fv.Len()-1), props)
+	case reflect.Bool:
+		// true/1/t/True or false/f/0/False.
+		switch tok.value {
+		case "true", "1", "t", "True":
+			fv.SetBool(true)
+			return nil
+		case "false", "0", "f", "False":
+			fv.SetBool(false)
+			return nil
+		}
+	case reflect.Float32, reflect.Float64:
+		v := tok.value
+		// Ignore 'f' for compatibility with output generated by C++, but don't
+		// remove 'f' when the value is "-inf" or "inf".
+		if strings.HasSuffix(v, "f") && tok.value != "-inf" && tok.value != "inf" {
+			v = v[:len(v)-1]
+		}
+		if f, err := strconv.ParseFloat(v, fv.Type().Bits()); err == nil {
+			fv.SetFloat(f)
+			return nil
+		}
+	case reflect.Int32:
+		if x, err := strconv.ParseInt(tok.value, 0, 32); err == nil {
+			fv.SetInt(x)
+			return nil
+		}
+
+		if len(props.Enum) == 0 {
+			break
+		}
+		m, ok := enumValueMaps[props.Enum]
+		if !ok {
+			break
+		}
+		x, ok := m[tok.value]
+		if !ok {
+			break
+		}
+		fv.SetInt(int64(x))
+		return nil
+	case reflect.Int64:
+		if x, err := strconv.ParseInt(tok.value, 0, 64); err == nil {
+			fv.SetInt(x)
+			return nil
+		}
+
+	case reflect.Ptr:
+		// A basic field (indirected through pointer), or a repeated message/group
+		p.back()
+		fv.Set(reflect.New(fv.Type().Elem()))
+		return p.readAny(fv.Elem(), props)
+	case reflect.String:
+		if tok.value[0] == '"' || tok.value[0] == '\'' {
+			fv.SetString(tok.unquoted)
+			return nil
+		}
+	case reflect.Struct:
+		var terminator string
+		switch tok.value {
+		case "{":
+			terminator = "}"
+		case "<":
+			terminator = ">"
+		default:
+			return p.errorf("expected '{' or '<', found %q", tok.value)
+		}
+		// TODO: Handle nested messages which implement encoding.TextUnmarshaler.
+		return p.readStruct(fv, terminator)
+	case reflect.Uint32:
+		if x, err := strconv.ParseUint(tok.value, 0, 32); err == nil {
+			fv.SetUint(uint64(x))
+			return nil
+		}
+	case reflect.Uint64:
+		if x, err := strconv.ParseUint(tok.value, 0, 64); err == nil {
+			fv.SetUint(x)
+			return nil
+		}
+	}
+	return p.errorf("invalid %v: %v", v.Type(), tok.value)
+}
+
+// UnmarshalText reads a protocol buffer in Text format. UnmarshalText resets pb
+// before starting to unmarshal, so any existing data in pb is always removed.
+// If a required field is not set and no other error occurs,
+// UnmarshalText returns *RequiredNotSetError.
+func UnmarshalText(s string, pb Message) error {
+	if um, ok := pb.(encoding.TextUnmarshaler); ok {
+		return um.UnmarshalText([]byte(s))
+	}
+	pb.Reset()
+	v := reflect.ValueOf(pb)
+	return newTextParser(s).readStruct(v.Elem(), "")
+}

log/vendor/github.com/gorilla/websocket/.gitignore

@@ -0,0 +1,25 @@
+# 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
+
+.idea/
+*.iml

log/vendor/github.com/gorilla/websocket/.travis.yml

@@ -0,0 +1,19 @@
+language: go
+sudo: false
+
+matrix:
+  include:
+    - go: 1.4
+    - go: 1.5
+    - go: 1.6
+    - go: 1.7
+    - go: 1.8
+    - go: tip
+  allow_failures:
+    - go: tip
+
+script:
+  - go get -t -v ./...
+  - diff -u <(echo -n) <(gofmt -d .)
+  - go vet $(go list ./... | grep -v /vendor/)
+  - go test -v -race ./...

log/vendor/github.com/gorilla/websocket/AUTHORS

@@ -0,0 +1,8 @@
+# This is the official list of Gorilla WebSocket authors for copyright
+# purposes.
+#
+# Please keep the list sorted.
+
+Gary Burd <gary@beagledreams.com>
+Joachim Bauch <mail@joachim-bauch.de>
+

log/vendor/github.com/gorilla/websocket/LICENSE

@@ -0,0 +1,22 @@
+Copyright (c) 2013 The Gorilla WebSocket 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.

log/vendor/github.com/gorilla/websocket/README.md

@@ -0,0 +1,64 @@
+# Gorilla WebSocket
+
+Gorilla WebSocket is a [Go](http://golang.org/) implementation of the
+[WebSocket](http://www.rfc-editor.org/rfc/rfc6455.txt) protocol.
+
+[![Build Status](https://travis-ci.org/gorilla/websocket.svg?branch=master)](https://travis-ci.org/gorilla/websocket)
+[![GoDoc](https://godoc.org/github.com/gorilla/websocket?status.svg)](https://godoc.org/github.com/gorilla/websocket)
+
+### Documentation
+
+* [API Reference](http://godoc.org/github.com/gorilla/websocket)
+* [Chat example](https://github.com/gorilla/websocket/tree/master/examples/chat)
+* [Command example](https://github.com/gorilla/websocket/tree/master/examples/command)
+* [Client and server example](https://github.com/gorilla/websocket/tree/master/examples/echo)
+* [File watch example](https://github.com/gorilla/websocket/tree/master/examples/filewatch)
+
+### Status
+
+The Gorilla WebSocket package provides a complete and tested implementation of
+the [WebSocket](http://www.rfc-editor.org/rfc/rfc6455.txt) protocol. The
+package API is stable.
+
+### Installation
+
+    go get github.com/gorilla/websocket
+
+### Protocol Compliance
+
+The Gorilla WebSocket package passes the server tests in the [Autobahn Test
+Suite](http://autobahn.ws/testsuite) using the application in the [examples/autobahn
+subdirectory](https://github.com/gorilla/websocket/tree/master/examples/autobahn).
+
+### Gorilla WebSocket compared with other packages
+
+<table>
+<tr>
+<th></th>
+<th><a href="http://godoc.org/github.com/gorilla/websocket">github.com/gorilla</a></th>
+<th><a href="http://godoc.org/golang.org/x/net/websocket">golang.org/x/net</a></th>
+</tr>
+<tr>
+<tr><td colspan="3"><a href="http://tools.ietf.org/html/rfc6455">RFC 6455</a> Features</td></tr>
+<tr><td>Passes <a href="http://autobahn.ws/testsuite/">Autobahn Test Suite</a></td><td><a href="https://github.com/gorilla/websocket/tree/master/examples/autobahn">Yes</a></td><td>No</td></tr>
+<tr><td>Receive <a href="https://tools.ietf.org/html/rfc6455#section-5.4">fragmented</a> message<td>Yes</td><td><a href="https://code.google.com/p/go/issues/detail?id=7632">No</a>, see note 1</td></tr>
+<tr><td>Send <a href="https://tools.ietf.org/html/rfc6455#section-5.5.1">close</a> message</td><td><a href="http://godoc.org/github.com/gorilla/websocket#hdr-Control_Messages">Yes</a></td><td><a href="https://code.google.com/p/go/issues/detail?id=4588">No</a></td></tr>
+<tr><td>Send <a href="https://tools.ietf.org/html/rfc6455#section-5.5.2">pings</a> and receive <a href="https://tools.ietf.org/html/rfc6455#section-5.5.3">pongs</a></td><td><a href="http://godoc.org/github.com/gorilla/websocket#hdr-Control_Messages">Yes</a></td><td>No</td></tr>
+<tr><td>Get the <a href="https://tools.ietf.org/html/rfc6455#section-5.6">type</a> of a received data message</td><td>Yes</td><td>Yes, see note 2</td></tr>
+<tr><td colspan="3">Other Features</tr></td>
+<tr><td><a href="https://tools.ietf.org/html/rfc7692">Compression Extensions</a></td><td>Experimental</td><td>No</td></tr>
+<tr><td>Read message using io.Reader</td><td><a href="http://godoc.org/github.com/gorilla/websocket#Conn.NextReader">Yes</a></td><td>No, see note 3</td></tr>
+<tr><td>Write message using io.WriteCloser</td><td><a href="http://godoc.org/github.com/gorilla/websocket#Conn.NextWriter">Yes</a></td><td>No, see note 3</td></tr>
+</table>
+
+Notes: 
+
+1. Large messages are fragmented in [Chrome's new WebSocket implementation](http://www.ietf.org/mail-archive/web/hybi/current/msg10503.html).
+2. The application can get the type of a received data message by implementing
+   a [Codec marshal](http://godoc.org/golang.org/x/net/websocket#Codec.Marshal)
+   function.
+3. The go.net io.Reader and io.Writer operate across WebSocket frame boundaries.
+  Read returns when the input buffer is full or a frame boundary is
+  encountered. Each call to Write sends a single frame message. The Gorilla
+  io.Reader and io.WriteCloser operate on a single WebSocket message.
+

log/vendor/github.com/gorilla/websocket/client.go

@@ -0,0 +1,392 @@
+// Copyright 2013 The Gorilla WebSocket 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 websocket
+
+import (
+	"bufio"
+	"bytes"
+	"crypto/tls"
+	"encoding/base64"
+	"errors"
+	"io"
+	"io/ioutil"
+	"net"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+)
+
+// ErrBadHandshake is returned when the server response to opening handshake is
+// invalid.
+var ErrBadHandshake = errors.New("websocket: bad handshake")
+
+var errInvalidCompression = errors.New("websocket: invalid compression negotiation")
+
+// NewClient creates a new client connection using the given net connection.
+// The URL u specifies the host and request URI. Use requestHeader to specify
+// the origin (Origin), subprotocols (Sec-WebSocket-Protocol) and cookies
+// (Cookie). Use the response.Header to get the selected subprotocol
+// (Sec-WebSocket-Protocol) and cookies (Set-Cookie).
+//
+// If the WebSocket handshake fails, ErrBadHandshake is returned along with a
+// non-nil *http.Response so that callers can handle redirects, authentication,
+// etc.
+//
+// Deprecated: Use Dialer instead.
+func NewClient(netConn net.Conn, u *url.URL, requestHeader http.Header, readBufSize, writeBufSize int) (c *Conn, response *http.Response, err error) {
+	d := Dialer{
+		ReadBufferSize:  readBufSize,
+		WriteBufferSize: writeBufSize,
+		NetDial: func(net, addr string) (net.Conn, error) {
+			return netConn, nil
+		},
+	}
+	return d.Dial(u.String(), requestHeader)
+}
+
+// A Dialer contains options for connecting to WebSocket server.
+type Dialer struct {
+	// NetDial specifies the dial function for creating TCP connections. If
+	// NetDial is nil, net.Dial is used.
+	NetDial func(network, addr string) (net.Conn, error)
+
+	// Proxy specifies a function to return a proxy for a given
+	// Request. If the function returns a non-nil error, the
+	// request is aborted with the provided error.
+	// If Proxy is nil or returns a nil *URL, no proxy is used.
+	Proxy func(*http.Request) (*url.URL, error)
+
+	// TLSClientConfig specifies the TLS configuration to use with tls.Client.
+	// If nil, the default configuration is used.
+	TLSClientConfig *tls.Config
+
+	// HandshakeTimeout specifies the duration for the handshake to complete.
+	HandshakeTimeout time.Duration
+
+	// ReadBufferSize and WriteBufferSize specify I/O buffer sizes. If a buffer
+	// size is zero, then a useful default size is used. The I/O buffer sizes
+	// do not limit the size of the messages that can be sent or received.
+	ReadBufferSize, WriteBufferSize int
+
+	// Subprotocols specifies the client's requested subprotocols.
+	Subprotocols []string
+
+	// EnableCompression specifies if the client should attempt to negotiate
+	// per message compression (RFC 7692). Setting this value to true does not
+	// guarantee that compression will be supported. Currently only "no context
+	// takeover" modes are supported.
+	EnableCompression bool
+
+	// Jar specifies the cookie jar.
+	// If Jar is nil, cookies are not sent in requests and ignored
+	// in responses.
+	Jar http.CookieJar
+}
+
+var errMalformedURL = errors.New("malformed ws or wss URL")
+
+// parseURL parses the URL.
+//
+// This function is a replacement for the standard library url.Parse function.
+// In Go 1.4 and earlier, url.Parse loses information from the path.
+func parseURL(s string) (*url.URL, error) {
+	// From the RFC:
+	//
+	// ws-URI = "ws:" "//" host [ ":" port ] path [ "?" query ]
+	// wss-URI = "wss:" "//" host [ ":" port ] path [ "?" query ]
+	var u url.URL
+	switch {
+	case strings.HasPrefix(s, "ws://"):
+		u.Scheme = "ws"
+		s = s[len("ws://"):]
+	case strings.HasPrefix(s, "wss://"):
+		u.Scheme = "wss"
+		s = s[len("wss://"):]
+	default:
+		return nil, errMalformedURL
+	}
+
+	if i := strings.Index(s, "?"); i >= 0 {
+		u.RawQuery = s[i+1:]
+		s = s[:i]
+	}
+
+	if i := strings.Index(s, "/"); i >= 0 {
+		u.Opaque = s[i:]
+		s = s[:i]
+	} else {
+		u.Opaque = "/"
+	}
+
+	u.Host = s
+
+	if strings.Contains(u.Host, "@") {
+		// Don't bother parsing user information because user information is
+		// not allowed in websocket URIs.
+		return nil, errMalformedURL
+	}
+
+	return &u, nil
+}
+
+func hostPortNoPort(u *url.URL) (hostPort, hostNoPort string) {
+	hostPort = u.Host
+	hostNoPort = u.Host
+	if i := strings.LastIndex(u.Host, ":"); i > strings.LastIndex(u.Host, "]") {
+		hostNoPort = hostNoPort[:i]
+	} else {
+		switch u.Scheme {
+		case "wss":
+			hostPort += ":443"
+		case "https":
+			hostPort += ":443"
+		default:
+			hostPort += ":80"
+		}
+	}
+	return hostPort, hostNoPort
+}
+
+// DefaultDialer is a dialer with all fields set to the default zero values.
+var DefaultDialer = &Dialer{
+	Proxy: http.ProxyFromEnvironment,
+}
+
+// Dial creates a new client connection. Use requestHeader to specify the
+// origin (Origin), subprotocols (Sec-WebSocket-Protocol) and cookies (Cookie).
+// Use the response.Header to get the selected subprotocol
+// (Sec-WebSocket-Protocol) and cookies (Set-Cookie).
+//
+// If the WebSocket handshake fails, ErrBadHandshake is returned along with a
+// non-nil *http.Response so that callers can handle redirects, authentication,
+// etcetera. The response body may not contain the entire response and does not
+// need to be closed by the application.
+func (d *Dialer) Dial(urlStr string, requestHeader http.Header) (*Conn, *http.Response, error) {
+
+	if d == nil {
+		d = &Dialer{
+			Proxy: http.ProxyFromEnvironment,
+		}
+	}
+
+	challengeKey, err := generateChallengeKey()
+	if err != nil {
+		return nil, nil, err
+	}
+
+	u, err := parseURL(urlStr)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	switch u.Scheme {
+	case "ws":
+		u.Scheme = "http"
+	case "wss":
+		u.Scheme = "https"
+	default:
+		return nil, nil, errMalformedURL
+	}
+
+	if u.User != nil {
+		// User name and password are not allowed in websocket URIs.
+		return nil, nil, errMalformedURL
+	}
+
+	req := &http.Request{
+		Method:     "GET",
+		URL:        u,
+		Proto:      "HTTP/1.1",
+		ProtoMajor: 1,
+		ProtoMinor: 1,
+		Header:     make(http.Header),
+		Host:       u.Host,
+	}
+
+	// Set the cookies present in the cookie jar of the dialer
+	if d.Jar != nil {
+		for _, cookie := range d.Jar.Cookies(u) {
+			req.AddCookie(cookie)
+		}
+	}
+
+	// Set the request headers using the capitalization for names and values in
+	// RFC examples. Although the capitalization shouldn't matter, there are
+	// servers that depend on it. The Header.Set method is not used because the
+	// method canonicalizes the header names.
+	req.Header["Upgrade"] = []string{"websocket"}
+	req.Header["Connection"] = []string{"Upgrade"}
+	req.Header["Sec-WebSocket-Key"] = []string{challengeKey}
+	req.Header["Sec-WebSocket-Version"] = []string{"13"}
+	if len(d.Subprotocols) > 0 {
+		req.Header["Sec-WebSocket-Protocol"] = []string{strings.Join(d.Subprotocols, ", ")}
+	}
+	for k, vs := range requestHeader {
+		switch {
+		case k == "Host":
+			if len(vs) > 0 {
+				req.Host = vs[0]
+			}
+		case k == "Upgrade" ||
+			k == "Connection" ||
+			k == "Sec-Websocket-Key" ||
+			k == "Sec-Websocket-Version" ||
+			k == "Sec-Websocket-Extensions" ||
+			(k == "Sec-Websocket-Protocol" && len(d.Subprotocols) > 0):
+			return nil, nil, errors.New("websocket: duplicate header not allowed: " + k)
+		default:
+			req.Header[k] = vs
+		}
+	}
+
+	if d.EnableCompression {
+		req.Header.Set("Sec-Websocket-Extensions", "permessage-deflate; server_no_context_takeover; client_no_context_takeover")
+	}
+
+	hostPort, hostNoPort := hostPortNoPort(u)
+
+	var proxyURL *url.URL
+	// Check wether the proxy method has been configured
+	if d.Proxy != nil {
+		proxyURL, err = d.Proxy(req)
+	}
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var targetHostPort string
+	if proxyURL != nil {
+		targetHostPort, _ = hostPortNoPort(proxyURL)
+	} else {
+		targetHostPort = hostPort
+	}
+
+	var deadline time.Time
+	if d.HandshakeTimeout != 0 {
+		deadline = time.Now().Add(d.HandshakeTimeout)
+	}
+
+	netDial := d.NetDial
+	if netDial == nil {
+		netDialer := &net.Dialer{Deadline: deadline}
+		netDial = netDialer.Dial
+	}
+
+	netConn, err := netDial("tcp", targetHostPort)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	defer func() {
+		if netConn != nil {
+			netConn.Close()
+		}
+	}()
+
+	if err := netConn.SetDeadline(deadline); err != nil {
+		return nil, nil, err
+	}
+
+	if proxyURL != nil {
+		connectHeader := make(http.Header)
+		if user := proxyURL.User; user != nil {
+			proxyUser := user.Username()
+			if proxyPassword, passwordSet := user.Password(); passwordSet {
+				credential := base64.StdEncoding.EncodeToString([]byte(proxyUser + ":" + proxyPassword))
+				connectHeader.Set("Proxy-Authorization", "Basic "+credential)
+			}
+		}
+		connectReq := &http.Request{
+			Method: "CONNECT",
+			URL:    &url.URL{Opaque: hostPort},
+			Host:   hostPort,
+			Header: connectHeader,
+		}
+
+		connectReq.Write(netConn)
+
+		// Read response.
+		// Okay to use and discard buffered reader here, because
+		// TLS server will not speak until spoken to.
+		br := bufio.NewReader(netConn)
+		resp, err := http.ReadResponse(br, connectReq)
+		if err != nil {
+			return nil, nil, err
+		}
+		if resp.StatusCode != 200 {
+			f := strings.SplitN(resp.Status, " ", 2)
+			return nil, nil, errors.New(f[1])
+		}
+	}
+
+	if u.Scheme == "https" {
+		cfg := cloneTLSConfig(d.TLSClientConfig)
+		if cfg.ServerName == "" {
+			cfg.ServerName = hostNoPort
+		}
+		tlsConn := tls.Client(netConn, cfg)
+		netConn = tlsConn
+		if err := tlsConn.Handshake(); err != nil {
+			return nil, nil, err
+		}
+		if !cfg.InsecureSkipVerify {
+			if err := tlsConn.VerifyHostname(cfg.ServerName); err != nil {
+				return nil, nil, err
+			}
+		}
+	}
+
+	conn := newConn(netConn, false, d.ReadBufferSize, d.WriteBufferSize)
+
+	if err := req.Write(netConn); err != nil {
+		return nil, nil, err
+	}
+
+	resp, err := http.ReadResponse(conn.br, req)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	if d.Jar != nil {
+		if rc := resp.Cookies(); len(rc) > 0 {
+			d.Jar.SetCookies(u, rc)
+		}
+	}
+
+	if resp.StatusCode != 101 ||
+		!strings.EqualFold(resp.Header.Get("Upgrade"), "websocket") ||
+		!strings.EqualFold(resp.Header.Get("Connection"), "upgrade") ||
+		resp.Header.Get("Sec-Websocket-Accept") != computeAcceptKey(challengeKey) {
+		// Before closing the network connection on return from this
+		// function, slurp up some of the response to aid application
+		// debugging.
+		buf := make([]byte, 1024)
+		n, _ := io.ReadFull(resp.Body, buf)
+		resp.Body = ioutil.NopCloser(bytes.NewReader(buf[:n]))
+		return nil, resp, ErrBadHandshake
+	}
+
+	for _, ext := range parseExtensions(resp.Header) {
+		if ext[""] != "permessage-deflate" {
+			continue
+		}
+		_, snct := ext["server_no_context_takeover"]
+		_, cnct := ext["client_no_context_takeover"]
+		if !snct || !cnct {
+			return nil, resp, errInvalidCompression
+		}
+		conn.newCompressionWriter = compressNoContextTakeover
+		conn.newDecompressionReader = decompressNoContextTakeover
+		break
+	}
+
+	resp.Body = ioutil.NopCloser(bytes.NewReader([]byte{}))
+	conn.subprotocol = resp.Header.Get("Sec-Websocket-Protocol")
+
+	netConn.SetDeadline(time.Time{})
+	netConn = nil // to avoid close in defer.
+	return conn, resp, nil
+}

log/vendor/github.com/gorilla/websocket/client_clone.go

@@ -0,0 +1,16 @@
+// Copyright 2013 The Gorilla WebSocket 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 go1.8
+
+package websocket
+
+import "crypto/tls"
+
+func cloneTLSConfig(cfg *tls.Config) *tls.Config {
+	if cfg == nil {
+		return &tls.Config{}
+	}
+	return cfg.Clone()
+}

log/vendor/github.com/gorilla/websocket/client_clone_legacy.go

@@ -0,0 +1,38 @@
+// Copyright 2013 The Gorilla WebSocket 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 !go1.8
+
+package websocket
+
+import "crypto/tls"
+
+// cloneTLSConfig clones all public fields except the fields
+// SessionTicketsDisabled and SessionTicketKey. This avoids copying the
+// sync.Mutex in the sync.Once and makes it safe to call cloneTLSConfig on a
+// config in active use.
+func cloneTLSConfig(cfg *tls.Config) *tls.Config {
+	if cfg == nil {
+		return &tls.Config{}
+	}
+	return &tls.Config{
+		Rand:                     cfg.Rand,
+		Time:                     cfg.Time,
+		Certificates:             cfg.Certificates,
+		NameToCertificate:        cfg.NameToCertificate,
+		GetCertificate:           cfg.GetCertificate,
+		RootCAs:                  cfg.RootCAs,
+		NextProtos:               cfg.NextProtos,
+		ServerName:               cfg.ServerName,
+		ClientAuth:               cfg.ClientAuth,
+		ClientCAs:                cfg.ClientCAs,
+		InsecureSkipVerify:       cfg.InsecureSkipVerify,
+		CipherSuites:             cfg.CipherSuites,
+		PreferServerCipherSuites: cfg.PreferServerCipherSuites,
+		ClientSessionCache:       cfg.ClientSessionCache,
+		MinVersion:               cfg.MinVersion,
+		MaxVersion:               cfg.MaxVersion,
+		CurvePreferences:         cfg.CurvePreferences,
+	}
+}

log/vendor/github.com/gorilla/websocket/compression.go

@@ -0,0 +1,148 @@
+// Copyright 2017 The Gorilla WebSocket 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 websocket
+
+import (
+	"compress/flate"
+	"errors"
+	"io"
+	"strings"
+	"sync"
+)
+
+const (
+	minCompressionLevel     = -2 // flate.HuffmanOnly not defined in Go < 1.6
+	maxCompressionLevel     = flate.BestCompression
+	defaultCompressionLevel = 1
+)
+
+var (
+	flateWriterPools [maxCompressionLevel - minCompressionLevel + 1]sync.Pool
+	flateReaderPool  = sync.Pool{New: func() interface{} {
+		return flate.NewReader(nil)
+	}}
+)
+
+func decompressNoContextTakeover(r io.Reader) io.ReadCloser {
+	const tail =
+	// Add four bytes as specified in RFC
+	"\x00\x00\xff\xff" +
+		// Add final block to squelch unexpected EOF error from flate reader.
+		"\x01\x00\x00\xff\xff"
+
+	fr, _ := flateReaderPool.Get().(io.ReadCloser)
+	fr.(flate.Resetter).Reset(io.MultiReader(r, strings.NewReader(tail)), nil)
+	return &flateReadWrapper{fr}
+}
+
+func isValidCompressionLevel(level int) bool {
+	return minCompressionLevel <= level && level <= maxCompressionLevel
+}
+
+func compressNoContextTakeover(w io.WriteCloser, level int) io.WriteCloser {
+	p := &flateWriterPools[level-minCompressionLevel]
+	tw := &truncWriter{w: w}
+	fw, _ := p.Get().(*flate.Writer)
+	if fw == nil {
+		fw, _ = flate.NewWriter(tw, level)
+	} else {
+		fw.Reset(tw)
+	}
+	return &flateWriteWrapper{fw: fw, tw: tw, p: p}
+}
+
+// truncWriter is an io.Writer that writes all but the last four bytes of the
+// stream to another io.Writer.
+type truncWriter struct {
+	w io.WriteCloser
+	n int
+	p [4]byte
+}
+
+func (w *truncWriter) Write(p []byte) (int, error) {
+	n := 0
+
+	// fill buffer first for simplicity.
+	if w.n < len(w.p) {
+		n = copy(w.p[w.n:], p)
+		p = p[n:]
+		w.n += n
+		if len(p) == 0 {
+			return n, nil
+		}
+	}
+
+	m := len(p)
+	if m > len(w.p) {
+		m = len(w.p)
+	}
+
+	if nn, err := w.w.Write(w.p[:m]); err != nil {
+		return n + nn, err
+	}
+
+	copy(w.p[:], w.p[m:])
+	copy(w.p[len(w.p)-m:], p[len(p)-m:])
+	nn, err := w.w.Write(p[:len(p)-m])
+	return n + nn, err
+}
+
+type flateWriteWrapper struct {
+	fw *flate.Writer
+	tw *truncWriter
+	p  *sync.Pool
+}
+
+func (w *flateWriteWrapper) Write(p []byte) (int, error) {
+	if w.fw == nil {
+		return 0, errWriteClosed
+	}
+	return w.fw.Write(p)
+}
+
+func (w *flateWriteWrapper) Close() error {
+	if w.fw == nil {
+		return errWriteClosed
+	}
+	err1 := w.fw.Flush()
+	w.p.Put(w.fw)
+	w.fw = nil
+	if w.tw.p != [4]byte{0, 0, 0xff, 0xff} {
+		return errors.New("websocket: internal error, unexpected bytes at end of flate stream")
+	}
+	err2 := w.tw.w.Close()
+	if err1 != nil {
+		return err1
+	}
+	return err2
+}
+
+type flateReadWrapper struct {
+	fr io.ReadCloser
+}
+
+func (r *flateReadWrapper) Read(p []byte) (int, error) {
+	if r.fr == nil {
+		return 0, io.ErrClosedPipe
+	}
+	n, err := r.fr.Read(p)
+	if err == io.EOF {
+		// Preemptively place the reader back in the pool. This helps with
+		// scenarios where the application does not call NextReader() soon after
+		// this final read.
+		r.Close()
+	}
+	return n, err
+}
+
+func (r *flateReadWrapper) Close() error {
+	if r.fr == nil {
+		return io.ErrClosedPipe
+	}
+	err := r.fr.Close()
+	flateReaderPool.Put(r.fr)
+	r.fr = nil
+	return err
+}

log/vendor/github.com/gorilla/websocket/conn_read.go

@@ -0,0 +1,18 @@
+// Copyright 2016 The Gorilla WebSocket 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 go1.5
+
+package websocket
+
+import "io"
+
+func (c *Conn) read(n int) ([]byte, error) {
+	p, err := c.br.Peek(n)
+	if err == io.EOF {
+		err = errUnexpectedEOF
+	}
+	c.br.Discard(len(p))
+	return p, err
+}

log/vendor/github.com/gorilla/websocket/conn_read_legacy.go

@@ -0,0 +1,21 @@
+// Copyright 2016 The Gorilla WebSocket 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 !go1.5
+
+package websocket
+
+import "io"
+
+func (c *Conn) read(n int) ([]byte, error) {
+	p, err := c.br.Peek(n)
+	if err == io.EOF {
+		err = errUnexpectedEOF
+	}
+	if len(p) > 0 {
+		// advance over the bytes just read
+		io.ReadFull(c.br, p)
+	}
+	return p, err
+}

log/vendor/github.com/gorilla/websocket/doc.go

@@ -0,0 +1,180 @@
+// Copyright 2013 The Gorilla WebSocket 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 websocket implements the WebSocket protocol defined in RFC 6455.
+//
+// Overview
+//
+// The Conn type represents a WebSocket connection. A server application uses
+// the Upgrade function from an Upgrader object with a HTTP request handler
+// to get a pointer to a Conn:
+//
+//  var upgrader = websocket.Upgrader{
+//      ReadBufferSize:  1024,
+//      WriteBufferSize: 1024,
+//  }
+//
+//  func handler(w http.ResponseWriter, r *http.Request) {
+//      conn, err := upgrader.Upgrade(w, r, nil)
+//      if err != nil {
+//          log.Println(err)
+//          return
+//      }
+//      ... Use conn to send and receive messages.
+//  }
+//
+// Call the connection's WriteMessage and ReadMessage methods to send and
+// receive messages as a slice of bytes. This snippet of code shows how to echo
+// messages using these methods:
+//
+//  for {
+//      messageType, p, err := conn.ReadMessage()
+//      if err != nil {
+//          return
+//      }
+//      if err = conn.WriteMessage(messageType, p); err != nil {
+//          return err
+//      }
+//  }
+//
+// In above snippet of code, p is a []byte and messageType is an int with value
+// websocket.BinaryMessage or websocket.TextMessage.
+//
+// An application can also send and receive messages using the io.WriteCloser
+// and io.Reader interfaces. To send a message, call the connection NextWriter
+// method to get an io.WriteCloser, write the message to the writer and close
+// the writer when done. To receive a message, call the connection NextReader
+// method to get an io.Reader and read until io.EOF is returned. This snippet
+// shows how to echo messages using the NextWriter and NextReader methods:
+//
+//  for {
+//      messageType, r, err := conn.NextReader()
+//      if err != nil {
+//          return
+//      }
+//      w, err := conn.NextWriter(messageType)
+//      if err != nil {
+//          return err
+//      }
+//      if _, err := io.Copy(w, r); err != nil {
+//          return err
+//      }
+//      if err := w.Close(); err != nil {
+//          return err
+//      }
+//  }
+//
+// Data Messages
+//
+// The WebSocket protocol distinguishes between text and binary data messages.
+// Text messages are interpreted as UTF-8 encoded text. The interpretation of
+// binary messages is left to the application.
+//
+// This package uses the TextMessage and BinaryMessage integer constants to
+// identify the two data message types. The ReadMessage and NextReader methods
+// return the type of the received message. The messageType argument to the
+// WriteMessage and NextWriter methods specifies the type of a sent message.
+//
+// It is the application's responsibility to ensure that text messages are
+// valid UTF-8 encoded text.
+//
+// Control Messages
+//
+// The WebSocket protocol defines three types of control messages: close, ping
+// and pong. Call the connection WriteControl, WriteMessage or NextWriter
+// methods to send a control message to the peer.
+//
+// Connections handle received close messages by sending a close message to the
+// peer and returning a *CloseError from the the NextReader, ReadMessage or the
+// message Read method.
+//
+// Connections handle received ping and pong messages by invoking callback
+// functions set with SetPingHandler and SetPongHandler methods. The callback
+// functions are called from the NextReader, ReadMessage and the message Read
+// methods.
+//
+// The default ping handler sends a pong to the peer. The application's reading
+// goroutine can block for a short time while the handler writes the pong data
+// to the connection.
+//
+// The application must read the connection to process ping, pong and close
+// messages sent from the peer. If the application is not otherwise interested
+// in messages from the peer, then the application should start a goroutine to
+// read and discard messages from the peer. A simple example is:
+//
+//  func readLoop(c *websocket.Conn) {
+//      for {
+//          if _, _, err := c.NextReader(); err != nil {
+//              c.Close()
+//              break
+//          }
+//      }
+//  }
+//
+// Concurrency
+//
+// Connections support one concurrent reader and one concurrent writer.
+//
+// Applications are responsible for ensuring that no more than one goroutine
+// calls the write methods (NextWriter, SetWriteDeadline, WriteMessage,
+// WriteJSON, EnableWriteCompression, SetCompressionLevel) concurrently and
+// that no more than one goroutine calls the read methods (NextReader,
+// SetReadDeadline, ReadMessage, ReadJSON, SetPongHandler, SetPingHandler)
+// concurrently.
+//
+// The Close and WriteControl methods can be called concurrently with all other
+// methods.
+//
+// Origin Considerations
+//
+// Web browsers allow Javascript applications to open a WebSocket connection to
+// any host. It's up to the server to enforce an origin policy using the Origin
+// request header sent by the browser.
+//
+// The Upgrader calls the function specified in the CheckOrigin field to check
+// the origin. If the CheckOrigin function returns false, then the Upgrade
+// method fails the WebSocket handshake with HTTP status 403.
+//
+// If the CheckOrigin field is nil, then the Upgrader uses a safe default: fail
+// the handshake if the Origin request header is present and not equal to the
+// Host request header.
+//
+// An application can allow connections from any origin by specifying a
+// function that always returns true:
+//
+//  var upgrader = websocket.Upgrader{
+//      CheckOrigin: func(r *http.Request) bool { return true },
+//  }
+//
+// The deprecated Upgrade function does not enforce an origin policy. It's the
+// application's responsibility to check the Origin header before calling
+// Upgrade.
+//
+// Compression EXPERIMENTAL
+//
+// Per message compression extensions (RFC 7692) are experimentally supported
+// by this package in a limited capacity. Setting the EnableCompression option
+// to true in Dialer or Upgrader will attempt to negotiate per message deflate
+// support.
+//
+//  var upgrader = websocket.Upgrader{
+//      EnableCompression: true,
+//  }
+//
+// If compression was successfully negotiated with the connection's peer, any
+// message received in compressed form will be automatically decompressed.
+// All Read methods will return uncompressed bytes.
+//
+// Per message compression of messages written to a connection can be enabled
+// or disabled by calling the corresponding Conn method:
+//
+//  conn.EnableWriteCompression(false)
+//
+// Currently this package does not support compression with "context takeover".
+// This means that messages must be compressed and decompressed in isolation,
+// without retaining sliding window or dictionary state across messages. For
+// more details refer to RFC 7692.
+//
+// Use of compression is experimental and may result in decreased performance.
+package websocket

log/vendor/github.com/gorilla/websocket/json.go

@@ -0,0 +1,55 @@
+// Copyright 2013 The Gorilla WebSocket 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 websocket
+
+import (
+	"encoding/json"
+	"io"
+)
+
+// WriteJSON is deprecated, use c.WriteJSON instead.
+func WriteJSON(c *Conn, v interface{}) error {
+	return c.WriteJSON(v)
+}
+
+// WriteJSON writes the JSON encoding of v to the connection.
+//
+// See the documentation for encoding/json Marshal for details about the
+// conversion of Go values to JSON.
+func (c *Conn) WriteJSON(v interface{}) error {
+	w, err := c.NextWriter(TextMessage)
+	if err != nil {
+		return err
+	}
+	err1 := json.NewEncoder(w).Encode(v)
+	err2 := w.Close()
+	if err1 != nil {
+		return err1
+	}
+	return err2
+}
+
+// ReadJSON is deprecated, use c.ReadJSON instead.
+func ReadJSON(c *Conn, v interface{}) error {
+	return c.ReadJSON(v)
+}
+
+// ReadJSON reads the next JSON-encoded message from the connection and stores
+// it in the value pointed to by v.
+//
+// See the documentation for the encoding/json Unmarshal function for details
+// about the conversion of JSON to a Go value.
+func (c *Conn) ReadJSON(v interface{}) error {
+	_, r, err := c.NextReader()
+	if err != nil {
+		return err
+	}
+	err = json.NewDecoder(r).Decode(v)
+	if err == io.EOF {
+		// One value is expected in the message.
+		err = io.ErrUnexpectedEOF
+	}
+	return err
+}