Fix join/leave regression (irc)

README.md

@@ -42,7 +42,7 @@ Accounts to one of the supported bridges
 # Installing
 ## Binaries
 Binaries can be found [here] (https://github.com/42wim/matterbridge/releases/)
-* Latest release [v0.10.1](https://github.com/42wim/matterbridge/releases/latest)
+* Latest release [v0.10.3](https://github.com/42wim/matterbridge/releases/latest)
 
 ## Building
 Go 1.6+ is required. Make sure you have [Go](https://golang.org/doc/install) properly installed, including setting up your [GOPATH] (https://golang.org/doc/code.html#GOPATH)
@@ -122,9 +122,11 @@ RemoteNickFormat="[{PROTOCOL}/{BRIDGE}] <{NICK}> "
 ```
 
 # Running
-1) Copy the matterbridge.toml.sample to matterbridge.toml in the same directory as the matterbridge binary.  
+1) Copy the matterbridge.toml.sample to matterbridge.toml 
 2) Edit matterbridge.toml with the settings for your environment. 
-3) Now you can run matterbridge.  (```./matterbridge```)
+3) Now you can run matterbridge.  (```./matterbridge```)   
+
+(Matterbridge will only look for the config file in your current directory, if it isn't there specify -conf "/path/toyour/matterbridge.toml")
 
 ```
 Usage of ./matterbridge:
@@ -132,6 +134,8 @@ Usage of ./matterbridge:
         config file (default "matterbridge.toml")
   -debug
         enable debug
+  -gops
+        enable gops agent
   -version
         show version
 ```
@@ -165,6 +169,7 @@ Matterbridge wouldn't exist without these libraries:
 * discord - https://github.com/bwmarrin/discordgo
 * echo - https://github.com/labstack/echo
 * gitter - https://github.com/sromku/go-gitter
+* gops - https://github.com/google/gops
 * irc - https://github.com/thoj/go-ircevent
 * mattermost - https://github.com/mattermost/platform
 * matrix - https://github.com/matrix-org/gomatrix

bridge/bridge.go

@@ -27,23 +27,23 @@ type Bridger interface {
 type Bridge struct {
 	Config config.Protocol
 	Bridger
-	Name        string
-	Account     string
-	Protocol    string
-	ChannelsIn  map[string]config.ChannelOptions
-	ChannelsOut map[string]config.ChannelOptions
+	Name     string
+	Account  string
+	Protocol string
+	Channels map[string]config.ChannelInfo
+	Joined   map[string]bool
 }
 
 func New(cfg *config.Config, bridge *config.Bridge, c chan config.Message) *Bridge {
 	b := new(Bridge)
-	b.ChannelsIn = make(map[string]config.ChannelOptions)
-	b.ChannelsOut = make(map[string]config.ChannelOptions)
+	b.Channels = make(map[string]config.ChannelInfo)
 	accInfo := strings.Split(bridge.Account, ".")
 	protocol := accInfo[0]
 	name := accInfo[1]
 	b.Name = name
 	b.Protocol = protocol
 	b.Account = bridge.Account
+	b.Joined = make(map[string]bool)
 
 	// override config from environment
 	config.OverrideCfgFromEnv(cfg, protocol, name)
@@ -83,33 +83,28 @@ func New(cfg *config.Config, bridge *config.Bridge, c chan config.Message) *Brid
 }
 
 func (b *Bridge) JoinChannels() error {
-	exists := make(map[string]bool)
-	err := b.joinChannels(b.ChannelsIn, exists)
-	if err != nil {
-		return err
-	}
-	err = b.joinChannels(b.ChannelsOut, exists)
+	err := b.joinChannels(b.Channels, b.Joined)
 	if err != nil {
 		return err
 	}
 	return nil
 }
 
-func (b *Bridge) joinChannels(cMap map[string]config.ChannelOptions, exists map[string]bool) error {
+func (b *Bridge) joinChannels(channels map[string]config.ChannelInfo, exists map[string]bool) error {
 	mychannel := ""
-	for channel, info := range cMap {
-		if !exists[channel] {
-			mychannel = channel
-			log.Infof("%s: joining %s", b.Account, channel)
-			if b.Protocol == "irc" && info.Key != "" {
-				log.Debugf("using key %s for channel %s", info.Key, channel)
-				mychannel = mychannel + " " + info.Key
+	for ID, channel := range channels {
+		if !exists[ID] {
+			mychannel = channel.Name
+			log.Infof("%s: joining %s (%s)", b.Account, channel.Name, ID)
+			if b.Protocol == "irc" && channel.Options.Key != "" {
+				log.Debugf("using key %s for channel %s", channel.Options.Key, channel.Name)
+				mychannel = mychannel + " " + channel.Options.Key
 			}
-			err := b.JoinChannel(mychannel)
+			err := b.JoinChannel(channel.Name)
 			if err != nil {
 				return err
 			}
-			exists[channel] = true
+			exists[ID] = true
 		}
 	}
 	return nil

bridge/config/config.go

@@ -25,6 +25,16 @@ type Message struct {
 	Timestamp time.Time
 }
 
+type ChannelInfo struct {
+	Name        string
+	Account     string
+	Direction   string
+	ID          string
+	GID         map[string]bool
+	SameChannel map[string]bool
+	Options     ChannelOptions
+}
+
 type Protocol struct {
 	BindAddress            string // mattermost, slack
 	Buffer                 int    // api
@@ -63,9 +73,10 @@ type ChannelOptions struct {
 }
 
 type Bridge struct {
-	Account string
-	Channel string
-	Options ChannelOptions
+	Account     string
+	Channel     string
+	Options     ChannelOptions
+	SameChannel bool
 }
 
 type Gateway struct {

bridge/irc/irc.go

@@ -92,7 +92,7 @@ func (b *Birc) Connect() error {
 }
 
 func (b *Birc) Disconnect() error {
-	b.i.Disconnect()
+	//b.i.Disconnect()
 	close(b.Local)
 	return nil
 }

bridge/mattermost/mattermost.go

@@ -96,12 +96,7 @@ func (b *Bmattermost) Send(msg config.Message) error {
 	channel := msg.Channel
 
 	if b.Config.PrefixMessagesWithNick {
-		/*if IsMarkup(message) {
-			message = nick + "\n\n" + message
-		} else {
-		*/
-		message = nick + " " + message
-		//}
+		message = nick + message
 	}
 	if !b.Config.UseAPI {
 		matterMessage := matterhook.OMessage{IconURL: b.Config.IconURL}

bridge/slack/slack.go

@@ -73,6 +73,10 @@ func (b *Bslack) Disconnect() error {
 func (b *Bslack) JoinChannel(channel string) error {
 	// we can only join channels using the API
 	if b.Config.UseAPI {
+		if strings.HasPrefix(b.Config.Token, "xoxb") {
+			// TODO check if bot has already joined channel
+			return nil
+		}
 		_, err := b.sc.JoinChannel(channel)
 		if err != nil {
 			return err

bridge/telegram/telegram.go

@@ -80,28 +80,30 @@ func (b *Btelegram) handleRecv(updates <-chan tgbotapi.Update) {
 	text := ""
 	channel := ""
 	for update := range updates {
+		var message *tgbotapi.Message
 		// handle channels
 		if update.ChannelPost != nil {
-			if update.ChannelPost.From != nil {
-				username = update.ChannelPost.From.FirstName
-				if username == "" {
-					username = update.ChannelPost.From.UserName
-				}
-			}
-			text = update.ChannelPost.Text
-			channel = strconv.FormatInt(update.ChannelPost.Chat.ID, 10)
+			message = update.ChannelPost
+		}
+		if update.EditedChannelPost != nil {
+			message = update.EditedChannelPost
 		}
 		// handle groups
 		if update.Message != nil {
-			if update.Message.From != nil {
-				username = update.Message.From.FirstName
-				if username == "" {
-					username = update.Message.From.UserName
-				}
-			}
-			text = update.Message.Text
-			channel = strconv.FormatInt(update.Message.Chat.ID, 10)
+			message = update.Message
 		}
+		if update.EditedMessage != nil {
+			message = update.EditedMessage
+		}
+		if message.From != nil {
+			username = message.From.FirstName
+			if username == "" {
+				username = message.From.UserName
+			}
+			text = message.Text
+			channel = strconv.FormatInt(message.Chat.ID, 10)
+		}
+
 		if username == "" {
 			username = "unknown"
 		}

changelog.md

@@ -1,3 +1,24 @@
+# v0.11.0-dev
+## New features
+* general: reusing the same account on multiple gateways now also reuses the connection. 
+  This is particuarly useful for irc. See #87
+* general: the Name is now REQUIRED and needs to be UNIQUE for each gateway configuration
+
+# v0.10.3
+## Bugfix
+* slack: Allow bot tokens for now without warning (slack). Closes #140 (fixes user_is_bot message on channel join)
+
+# v0.10.2
+## New features
+* general: gops agent added. Allows for more debugging. See #134
+* general: toml inline table support added for config file
+
+## Bugfix
+* all: vendored libs updated
+
+## Changes
+* general: add more informative messages on startup
+
 # v0.10.1
 ## Bugfix
 * gitter: Fix sending messages on new channel join.

gateway/gateway.go

@@ -5,7 +5,6 @@ import (
 	"github.com/42wim/matterbridge/bridge"
 	"github.com/42wim/matterbridge/bridge/config"
 	log "github.com/Sirupsen/logrus"
-	"reflect"
 	"strings"
 	"time"
 )
@@ -14,21 +13,21 @@ type Gateway struct {
 	*config.Config
 	MyConfig        *config.Gateway
 	Bridges         map[string]*bridge.Bridge
-	ChannelsOut     map[string][]string
-	ChannelsIn      map[string][]string
+	Channels        map[string]*config.ChannelInfo
 	ChannelOptions  map[string]config.ChannelOptions
+	Names           map[string]bool
 	Name            string
 	Message         chan config.Message
-	DestChannelFunc func(msg *config.Message, dest string) []string
+	DestChannelFunc func(msg *config.Message, dest bridge.Bridge) []config.ChannelInfo
 }
 
-func New(cfg *config.Config, gateway *config.Gateway) *Gateway {
+func New(cfg *config.Config) *Gateway {
 	gw := &Gateway{}
-	gw.Name = gateway.Name
 	gw.Config = cfg
-	gw.MyConfig = gateway
+	gw.Channels = make(map[string]*config.ChannelInfo)
 	gw.Message = make(chan config.Message)
 	gw.Bridges = make(map[string]*bridge.Bridge)
+	gw.Names = make(map[string]bool)
 	gw.DestChannelFunc = gw.getDestChannel
 	return gw
 }
@@ -36,13 +35,17 @@ func New(cfg *config.Config, gateway *config.Gateway) *Gateway {
 func (gw *Gateway) AddBridge(cfg *config.Bridge) error {
 	for _, br := range gw.Bridges {
 		if br.Account == cfg.Account {
+			gw.mapChannelsToBridge(br)
+			err := br.JoinChannels()
+			if err != nil {
+				return fmt.Errorf("Bridge %s failed to join channel: %v", br.Account, err)
+			}
 			return nil
 		}
 	}
 	log.Infof("Starting bridge: %s ", cfg.Account)
 	br := bridge.New(gw.Config, cfg, gw.Message)
-	gw.mapChannelsToBridge(br, gw.ChannelsOut)
-	gw.mapChannelsToBridge(br, gw.ChannelsIn)
+	gw.mapChannelsToBridge(br)
 	gw.Bridges[cfg.Account] = br
 	err := br.Connect()
 	if err != nil {
@@ -55,17 +58,17 @@ func (gw *Gateway) AddBridge(cfg *config.Bridge) error {
 	return nil
 }
 
-func (gw *Gateway) mapChannelsToBridge(br *bridge.Bridge, cMap map[string][]string) {
-	for _, channel := range cMap[br.Account] {
-		if _, ok := gw.ChannelOptions[br.Account+channel]; ok {
-			br.ChannelsOut[channel] = gw.ChannelOptions[br.Account+channel]
-		} else {
-			br.ChannelsOut[channel] = config.ChannelOptions{}
-		}
+func (gw *Gateway) AddConfig(cfg *config.Gateway) error {
+	if gw.Names[cfg.Name] {
+		return fmt.Errorf("Gateway with name %s already exists", cfg.Name)
 	}
-}
-
-func (gw *Gateway) Start() error {
+	if cfg.Name == "" {
+		return fmt.Errorf("%s", "Gateway without name found")
+	}
+	log.Infof("Starting gateway: %s", cfg.Name)
+	gw.Names[cfg.Name] = true
+	gw.Name = cfg.Name
+	gw.MyConfig = cfg
 	gw.mapChannels()
 	for _, br := range append(gw.MyConfig.In, append(gw.MyConfig.InOut, gw.MyConfig.Out...)...) {
 		err := gw.AddBridge(&br)
@@ -73,6 +76,18 @@ func (gw *Gateway) Start() error {
 			return err
 		}
 	}
+	return nil
+}
+
+func (gw *Gateway) mapChannelsToBridge(br *bridge.Bridge) {
+	for ID, channel := range gw.Channels {
+		if br.Account == channel.Account {
+			br.Channels[ID] = *channel
+		}
+	}
+}
+
+func (gw *Gateway) Start() error {
 	go gw.handleReceive()
 	return nil
 }
@@ -109,45 +124,52 @@ RECONNECT:
 		time.Sleep(time.Second * 60)
 		goto RECONNECT
 	}
+	br.Joined = make(map[string]bool)
 	br.JoinChannels()
 }
 
 func (gw *Gateway) mapChannels() error {
-	options := make(map[string]config.ChannelOptions)
-	m := make(map[string][]string)
-	for _, br := range gw.MyConfig.Out {
-		m[br.Account] = append(m[br.Account], br.Channel)
-		options[br.Account+br.Channel] = br.Options
+	for _, br := range append(gw.MyConfig.Out, gw.MyConfig.InOut...) {
+		ID := br.Channel + br.Account
+		_, ok := gw.Channels[ID]
+		if !ok {
+			channel := &config.ChannelInfo{Name: br.Channel, Direction: "out", ID: ID, Options: br.Options, Account: br.Account,
+				GID: make(map[string]bool), SameChannel: make(map[string]bool)}
+			channel.GID[gw.Name] = true
+			channel.SameChannel[gw.Name] = br.SameChannel
+			gw.Channels[channel.ID] = channel
+		}
+		gw.Channels[ID].GID[gw.Name] = true
+		gw.Channels[ID].SameChannel[gw.Name] = br.SameChannel
 	}
-	gw.ChannelsOut = m
-	m = nil
-	m = make(map[string][]string)
-	for _, br := range gw.MyConfig.In {
-		m[br.Account] = append(m[br.Account], br.Channel)
-		options[br.Account+br.Channel] = br.Options
+
+	for _, br := range append(gw.MyConfig.In, gw.MyConfig.InOut...) {
+		ID := br.Channel + br.Account
+		_, ok := gw.Channels[ID]
+		if !ok {
+			channel := &config.ChannelInfo{Name: br.Channel, Direction: "in", ID: ID, Options: br.Options, Account: br.Account,
+				GID: make(map[string]bool), SameChannel: make(map[string]bool)}
+			channel.GID[gw.Name] = true
+			channel.SameChannel[gw.Name] = br.SameChannel
+			gw.Channels[channel.ID] = channel
+		}
+		gw.Channels[ID].GID[gw.Name] = true
+		gw.Channels[ID].SameChannel[gw.Name] = br.SameChannel
 	}
-	gw.ChannelsIn = m
-	for _, br := range gw.MyConfig.InOut {
-		gw.ChannelsIn[br.Account] = append(gw.ChannelsIn[br.Account], br.Channel)
-		gw.ChannelsOut[br.Account] = append(gw.ChannelsOut[br.Account], br.Channel)
-		options[br.Account+br.Channel] = br.Options
-	}
-	gw.ChannelOptions = options
 	return nil
 }
 
-func (gw *Gateway) getDestChannel(msg *config.Message, dest string) []string {
-	channels := gw.ChannelsIn[msg.Account]
-	// broadcast to every out channel (irc QUIT)
-	if msg.Event == config.EVENT_JOIN_LEAVE && msg.Channel == "" {
-		return gw.ChannelsOut[dest]
-	}
-	for _, channel := range channels {
-		if channel == msg.Channel {
-			return gw.ChannelsOut[dest]
+func (gw *Gateway) getDestChannel(msg *config.Message, dest bridge.Bridge) []config.ChannelInfo {
+	var channels []config.ChannelInfo
+	for _, channel := range gw.Channels {
+		if _, ok := gw.Channels[getChannelID(*msg)]; !ok {
+			continue
+		}
+		if channel.Direction == "out" && channel.Account == dest.Account && gw.validGatewayDest(*msg, channel) {
+			channels = append(channels, *channel)
 		}
 	}
-	return []string{}
+	return channels
 }
 
 func (gw *Gateway) handleMessage(msg config.Message, dest *bridge.Bridge) {
@@ -155,19 +177,19 @@ func (gw *Gateway) handleMessage(msg config.Message, dest *bridge.Bridge) {
 	if msg.Event == config.EVENT_JOIN_LEAVE && !gw.Bridges[dest.Account].Config.ShowJoinPart {
 		return
 	}
+	// broadcast to every out channel (irc QUIT)
+	if msg.Channel == "" && msg.Event != config.EVENT_JOIN_LEAVE {
+		log.Debug("empty channel")
+		return
+	}
 	originchannel := msg.Channel
-	channels := gw.DestChannelFunc(&msg, dest.Account)
-	for _, channel := range channels {
-		// do not send the message to the bridge we come from if also the channel is the same
-		if msg.Account == dest.Account && channel == originchannel {
+	for _, channel := range gw.DestChannelFunc(&msg, *dest) {
+		// do not send to ourself
+		if channel.ID == getChannelID(msg) {
 			continue
 		}
-		msg.Channel = channel
-		if msg.Channel == "" {
-			log.Debug("empty channel")
-			return
-		}
-		log.Debugf("Sending %#v from %s (%s) to %s (%s)", msg, msg.Account, originchannel, dest.Account, channel)
+		log.Debugf("Sending %#v from %s (%s) to %s (%s)", msg, msg.Account, originchannel, dest.Account, channel.Name)
+		msg.Channel = channel.Name
 		gw.modifyUsername(&msg, dest)
 		// for api we need originchannel as channel
 		if dest.Protocol == "api" {
@@ -194,21 +216,6 @@ func (gw *Gateway) ignoreMessage(msg *config.Message) bool {
 	return false
 }
 
-func (gw *Gateway) modifyMessage(msg *config.Message, dest *bridge.Bridge) {
-	val := reflect.ValueOf(gw.Config).Elem()
-	for i := 0; i < val.NumField(); i++ {
-		typeField := val.Type().Field(i)
-		// look for the protocol map (both lowercase)
-		if strings.ToLower(typeField.Name) == dest.Protocol {
-			// get the Protocol struct from the map
-			protoCfg := val.Field(i).MapIndex(reflect.ValueOf(dest.Name))
-			//config.SetNickFormat(msg, protoCfg.Interface().(config.Protocol))
-			val.Field(i).SetMapIndex(reflect.ValueOf(dest.Name), protoCfg)
-			break
-		}
-	}
-}
-
 func (gw *Gateway) modifyUsername(msg *config.Message, dest *bridge.Bridge) {
 	br := gw.Bridges[msg.Account]
 	msg.Protocol = br.Protocol
@@ -221,3 +228,29 @@ func (gw *Gateway) modifyUsername(msg *config.Message, dest *bridge.Bridge) {
 	nick = strings.Replace(nick, "{PROTOCOL}", br.Protocol, -1)
 	msg.Username = nick
 }
+
+func getChannelID(msg config.Message) string {
+	return msg.Channel + msg.Account
+}
+
+func (gw *Gateway) validGatewayDest(msg config.Message, channel *config.ChannelInfo) bool {
+	GIDmap := gw.Channels[getChannelID(msg)].GID
+	// check if we are running a samechannelgateway.
+	// if it is and the channel name matches it's ok, otherwise we shouldn't use this channel.
+	for k, _ := range GIDmap {
+		if channel.SameChannel[k] == true {
+			if msg.Channel == channel.Name {
+				return true
+			} else {
+				return false
+			}
+		}
+	}
+	// check if we are in the correct gateway
+	for k, _ := range GIDmap {
+		if channel.GID[k] == true {
+			return true
+		}
+	}
+	return false
+}

gateway/samechannel/samechannel.go

@@ -2,48 +2,27 @@ package samechannelgateway
 
 import (
 	"github.com/42wim/matterbridge/bridge/config"
-	"github.com/42wim/matterbridge/gateway"
 )
 
 type SameChannelGateway struct {
 	*config.Config
-	MyConfig *config.SameChannelGateway
-	Channels []string
-	Name     string
 }
 
-func New(cfg *config.Config, gatewayCfg *config.SameChannelGateway) *SameChannelGateway {
-	return &SameChannelGateway{
-		MyConfig: gatewayCfg,
-		Channels: gatewayCfg.Channels,
-		Name:     gatewayCfg.Name,
-		Config:   cfg}
+func New(cfg *config.Config) *SameChannelGateway {
+	return &SameChannelGateway{Config: cfg}
 }
 
-func (sgw *SameChannelGateway) Start() error {
-	gw := gateway.New(sgw.Config, &config.Gateway{Name: sgw.Name})
-	gw.DestChannelFunc = sgw.getDestChannel
-	for _, account := range sgw.MyConfig.Accounts {
-		for _, channel := range sgw.Channels {
-			br := config.Bridge{Account: account, Channel: channel}
-			gw.MyConfig.InOut = append(gw.MyConfig.InOut, br)
+func (sgw *SameChannelGateway) GetConfig() []config.Gateway {
+	var gwconfigs []config.Gateway
+	cfg := sgw.Config
+	for _, gw := range cfg.SameChannelGateway {
+		gwconfig := config.Gateway{Name: gw.Name, Enable: gw.Enable}
+		for _, account := range gw.Accounts {
+			for _, channel := range gw.Channels {
+				gwconfig.InOut = append(gwconfig.InOut, config.Bridge{Account: account, Channel: channel, SameChannel: true})
+			}
 		}
+		gwconfigs = append(gwconfigs, gwconfig)
 	}
-	return gw.Start()
-}
-
-func (sgw *SameChannelGateway) validChannel(channel string) bool {
-	for _, c := range sgw.Channels {
-		if c == channel {
-			return true
-		}
-	}
-	return false
-}
-
-func (sgw *SameChannelGateway) getDestChannel(msg *config.Message, dest string) []string {
-	if sgw.validChannel(msg.Channel) {
-		return []string{msg.Channel}
-	}
-	return []string{}
+	return gwconfigs
 }

matterbridge.go

@@ -8,10 +8,11 @@ import (
 	"github.com/42wim/matterbridge/gateway/samechannel"
 	log "github.com/Sirupsen/logrus"
 	"github.com/google/gops/agent"
+	"strings"
 )
 
 var (
-	version = "0.10.2-dev"
+	version = "0.11.0-dev"
 	githash string
 )
 
@@ -39,31 +40,26 @@ func main() {
 		log.SetLevel(log.DebugLevel)
 	}
 	log.Printf("Running version %s %s", version, githash)
-	cfg := config.NewConfig(*flagConfig)
-	for _, gw := range cfg.SameChannelGateway {
-		if !gw.Enable {
-			continue
-		}
-		log.Printf("Starting samechannel gateway %#v", gw.Name)
-		g := samechannelgateway.New(cfg, &gw)
-		err := g.Start()
-		if err != nil {
-			log.Fatalf("Starting gateway failed %#v", err)
-		}
-		log.Printf("Started samechannel gateway %#v", gw.Name)
+	if strings.Contains(version, "-dev") {
+		log.Println("WARNING: THIS IS A DEVELOPMENT VERSION. Things may break.")
 	}
+	cfg := config.NewConfig(*flagConfig)
 
-	for _, gw := range cfg.Gateway {
+	g := gateway.New(cfg)
+	sgw := samechannelgateway.New(cfg)
+	gwconfigs := sgw.GetConfig()
+	for _, gw := range append(gwconfigs, cfg.Gateway...) {
 		if !gw.Enable {
 			continue
 		}
-		log.Printf("Starting gateway %#v", gw.Name)
-		g := gateway.New(cfg, &gw)
-		err := g.Start()
+		err := g.AddConfig(&gw)
 		if err != nil {
-			log.Fatalf("Starting gateway failed %#v", err)
+			log.Fatalf("Starting gateway failed: %s", err)
 		}
-		log.Printf("Started gateway %#v", gw.Name)
+	}
+	err := g.Start()
+	if err != nil {
+		log.Fatalf("Starting gateway failed: %s", err)
 	}
 	log.Printf("Gateway(s) started succesfully. Now relaying messages")
 	select {}

matterbridge.toml.sample

@@ -587,7 +587,7 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 #
 
 [[gateway]]
-#OPTIONAL (not used for now)
+#REQUIRED and UNIQUE
 name="gateway1"
 #Enable enables this gateway
 ##OPTIONAL (default false)
@@ -659,6 +659,7 @@ enable=true
 #channel testing on slack and vice versa. (and for the channel testing2 and testing3)
 
 [[samechannelgateway]]
+   name="samechannel1"
    enable = false
    accounts = [ "mattermost.work","slack.hobby" ]
    channels = [ "testing","testing2","testing3"]

matterbridge.toml.simple

@@ -30,3 +30,12 @@ enable=true
     [[gateway.out]]
     account="mattermost.work"
     channel="off-topic"
+
+#simpler config possible since v0.10.2
+#[[gateway]]
+#name="gateway2"
+#enable=true
+#inout = [
+#    { account="irc.freenode", channel="#testing", options={key="channelkey"}},
+#    { account="mattermost.work", channel="off-topic" },
+#]

matterclient/matterclient.go

@@ -159,11 +159,11 @@ func (m *MMClient) Login() error {
 	m.Client.SetTeamId(m.Team.Id)
 
 	// setup websocket connection
-	wsurl := wsScheme + m.Credentials.Server + model.API_URL_SUFFIX + "/users/websocket"
+	wsurl := wsScheme + m.Credentials.Server + model.API_URL_SUFFIX_V3 + "/users/websocket"
 	header := http.Header{}
 	header.Set(model.HEADER_AUTH, "BEARER "+m.Client.AuthToken)
 
-	m.log.Debug("WsClient: making connection")
+	m.log.Debugf("WsClient: making connection: %s", wsurl)
 	for {
 		wsDialer := &websocket.Dialer{Proxy: http.ProxyFromEnvironment, TLSClientConfig: &tls.Config{InsecureSkipVerify: m.SkipTLSVerify}}
 		m.WsClient, _, err = wsDialer.Dial(wsurl, header)

vendor/github.com/BurntSushi/toml/doc.go

@@ -4,7 +4,7 @@ files via reflection. There is also support for delaying decoding with
 the Primitive type, and querying the set of keys in a TOML document with the
 MetaData type.
 
-The specification implemented: https://github.com/mojombo/toml
+The specification implemented: https://github.com/toml-lang/toml
 
 The sub-command github.com/BurntSushi/toml/cmd/tomlv can be used to verify
 whether a file is a valid TOML document. It can also be used to print the

vendor/github.com/BurntSushi/toml/encode.go

@@ -241,7 +241,7 @@ func (enc *Encoder) eArrayOfTables(key Key, rv reflect.Value) {
 func (enc *Encoder) eTable(key Key, rv reflect.Value) {
 	panicIfInvalidKey(key)
 	if len(key) == 1 {
-		// Output an extra new line between top-level tables.
+		// Output an extra newline between top-level tables.
 		// (The newline isn't written if nothing else has been written though.)
 		enc.newline()
 	}

vendor/github.com/BurntSushi/toml/lex.go

@@ -30,24 +30,28 @@ const (
 	itemArrayTableEnd
 	itemKeyStart
 	itemCommentStart
+	itemInlineTableStart
+	itemInlineTableEnd
 )
 
 const (
-	eof             = 0
-	tableStart      = '['
-	tableEnd        = ']'
-	arrayTableStart = '['
-	arrayTableEnd   = ']'
-	tableSep        = '.'
-	keySep          = '='
-	arrayStart      = '['
-	arrayEnd        = ']'
-	arrayValTerm    = ','
-	commentStart    = '#'
-	stringStart     = '"'
-	stringEnd       = '"'
-	rawStringStart  = '\''
-	rawStringEnd    = '\''
+	eof              = 0
+	comma            = ','
+	tableStart       = '['
+	tableEnd         = ']'
+	arrayTableStart  = '['
+	arrayTableEnd    = ']'
+	tableSep         = '.'
+	keySep           = '='
+	arrayStart       = '['
+	arrayEnd         = ']'
+	commentStart     = '#'
+	stringStart      = '"'
+	stringEnd        = '"'
+	rawStringStart   = '\''
+	rawStringEnd     = '\''
+	inlineTableStart = '{'
+	inlineTableEnd   = '}'
 )
 
 type stateFn func(lx *lexer) stateFn
@@ -56,11 +60,18 @@ type lexer struct {
 	input string
 	start int
 	pos   int
-	width int
 	line  int
 	state stateFn
 	items chan item
 
+	// Allow for backing up up to three runes.
+	// This is necessary because TOML contains 3-rune tokens (""" and ''').
+	prevWidths [3]int
+	nprev      int // how many of prevWidths are in use
+	// If we emit an eof, we can still back up, but it is not OK to call
+	// next again.
+	atEOF bool
+
 	// A stack of state functions used to maintain context.
 	// The idea is to reuse parts of the state machine in various places.
 	// For example, values can appear at the top level or within arbitrarily
@@ -88,7 +99,7 @@ func (lx *lexer) nextItem() item {
 
 func lex(input string) *lexer {
 	lx := &lexer{
-		input: input + "\n",
+		input: input,
 		state: lexTop,
 		line:  1,
 		items: make(chan item, 10),
@@ -103,7 +114,7 @@ func (lx *lexer) push(state stateFn) {
 
 func (lx *lexer) pop() stateFn {
 	if len(lx.stack) == 0 {
-		return lx.errorf("BUG in lexer: no states to pop.")
+		return lx.errorf("BUG in lexer: no states to pop")
 	}
 	last := lx.stack[len(lx.stack)-1]
 	lx.stack = lx.stack[0 : len(lx.stack)-1]
@@ -125,16 +136,25 @@ func (lx *lexer) emitTrim(typ itemType) {
 }
 
 func (lx *lexer) next() (r rune) {
+	if lx.atEOF {
+		panic("next called after EOF")
+	}
 	if lx.pos >= len(lx.input) {
-		lx.width = 0
+		lx.atEOF = true
 		return eof
 	}
 
 	if lx.input[lx.pos] == '\n' {
 		lx.line++
 	}
-	r, lx.width = utf8.DecodeRuneInString(lx.input[lx.pos:])
-	lx.pos += lx.width
+	lx.prevWidths[2] = lx.prevWidths[1]
+	lx.prevWidths[1] = lx.prevWidths[0]
+	if lx.nprev < 3 {
+		lx.nprev++
+	}
+	r, w := utf8.DecodeRuneInString(lx.input[lx.pos:])
+	lx.prevWidths[0] = w
+	lx.pos += w
 	return r
 }
 
@@ -143,9 +163,20 @@ func (lx *lexer) ignore() {
 	lx.start = lx.pos
 }
 
-// backup steps back one rune. Can be called only once per call of next.
+// backup steps back one rune. Can be called only twice between calls to next.
 func (lx *lexer) backup() {
-	lx.pos -= lx.width
+	if lx.atEOF {
+		lx.atEOF = false
+		return
+	}
+	if lx.nprev < 1 {
+		panic("backed up too far")
+	}
+	w := lx.prevWidths[0]
+	lx.prevWidths[0] = lx.prevWidths[1]
+	lx.prevWidths[1] = lx.prevWidths[2]
+	lx.nprev--
+	lx.pos -= w
 	if lx.pos < len(lx.input) && lx.input[lx.pos] == '\n' {
 		lx.line--
 	}
@@ -182,7 +213,7 @@ func (lx *lexer) skip(pred func(rune) bool) {
 
 // errorf stops all lexing by emitting an error and returning `nil`.
 // Note that any value that is a character is escaped if it's a special
-// character (new lines, tabs, etc.).
+// character (newlines, tabs, etc.).
 func (lx *lexer) errorf(format string, values ...interface{}) stateFn {
 	lx.items <- item{
 		itemError,
@@ -198,7 +229,6 @@ func lexTop(lx *lexer) stateFn {
 	if isWhitespace(r) || isNL(r) {
 		return lexSkip(lx, lexTop)
 	}
-
 	switch r {
 	case commentStart:
 		lx.push(lexTop)
@@ -207,7 +237,7 @@ func lexTop(lx *lexer) stateFn {
 		return lexTableStart
 	case eof:
 		if lx.pos > lx.start {
-			return lx.errorf("Unexpected EOF.")
+			return lx.errorf("unexpected EOF")
 		}
 		lx.emit(itemEOF)
 		return nil
@@ -222,12 +252,12 @@ func lexTop(lx *lexer) stateFn {
 
 // lexTopEnd is entered whenever a top-level item has been consumed. (A value
 // or a table.) It must see only whitespace, and will turn back to lexTop
-// upon a new line. If it sees EOF, it will quit the lexer successfully.
+// upon a newline. If it sees EOF, it will quit the lexer successfully.
 func lexTopEnd(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
 	case r == commentStart:
-		// a comment will read to a new line for us.
+		// a comment will read to a newline for us.
 		lx.push(lexTop)
 		return lexCommentStart
 	case isWhitespace(r):
@@ -236,11 +266,11 @@ func lexTopEnd(lx *lexer) stateFn {
 		lx.ignore()
 		return lexTop
 	case r == eof:
-		lx.ignore()
-		return lexTop
+		lx.emit(itemEOF)
+		return nil
 	}
-	return lx.errorf("Expected a top-level item to end with a new line, "+
-		"comment or EOF, but got %q instead.", r)
+	return lx.errorf("expected a top-level item to end with a newline, "+
+		"comment, or EOF, but got %q instead", r)
 }
 
 // lexTable lexes the beginning of a table. Namely, it makes sure that
@@ -267,8 +297,8 @@ func lexTableEnd(lx *lexer) stateFn {
 
 func lexArrayTableEnd(lx *lexer) stateFn {
 	if r := lx.next(); r != arrayTableEnd {
-		return lx.errorf("Expected end of table array name delimiter %q, "+
-			"but got %q instead.", arrayTableEnd, r)
+		return lx.errorf("expected end of table array name delimiter %q, "+
+			"but got %q instead", arrayTableEnd, r)
 	}
 	lx.emit(itemArrayTableEnd)
 	return lexTopEnd
@@ -278,11 +308,11 @@ func lexTableNameStart(lx *lexer) stateFn {
 	lx.skip(isWhitespace)
 	switch r := lx.peek(); {
 	case r == tableEnd || r == eof:
-		return lx.errorf("Unexpected end of table name. (Table names cannot " +
-			"be empty.)")
+		return lx.errorf("unexpected end of table name " +
+			"(table names cannot be empty)")
 	case r == tableSep:
-		return lx.errorf("Unexpected table separator. (Table names cannot " +
-			"be empty.)")
+		return lx.errorf("unexpected table separator " +
+			"(table names cannot be empty)")
 	case r == stringStart || r == rawStringStart:
 		lx.ignore()
 		lx.push(lexTableNameEnd)
@@ -317,8 +347,8 @@ func lexTableNameEnd(lx *lexer) stateFn {
 	case r == tableEnd:
 		return lx.pop()
 	default:
-		return lx.errorf("Expected '.' or ']' to end table name, but got %q "+
-			"instead.", r)
+		return lx.errorf("expected '.' or ']' to end table name, "+
+			"but got %q instead", r)
 	}
 }
 
@@ -328,7 +358,7 @@ func lexKeyStart(lx *lexer) stateFn {
 	r := lx.peek()
 	switch {
 	case r == keySep:
-		return lx.errorf("Unexpected key separator %q.", keySep)
+		return lx.errorf("unexpected key separator %q", keySep)
 	case isWhitespace(r) || isNL(r):
 		lx.next()
 		return lexSkip(lx, lexKeyStart)
@@ -359,7 +389,7 @@ func lexBareKey(lx *lexer) stateFn {
 		lx.emit(itemText)
 		return lexKeyEnd
 	default:
-		return lx.errorf("Bare keys cannot contain %q.", r)
+		return lx.errorf("bare keys cannot contain %q", r)
 	}
 }
 
@@ -372,7 +402,7 @@ func lexKeyEnd(lx *lexer) stateFn {
 	case isWhitespace(r):
 		return lexSkip(lx, lexKeyEnd)
 	default:
-		return lx.errorf("Expected key separator %q, but got %q instead.",
+		return lx.errorf("expected key separator %q, but got %q instead",
 			keySep, r)
 	}
 }
@@ -381,9 +411,8 @@ func lexKeyEnd(lx *lexer) stateFn {
 // lexValue will ignore whitespace.
 // After a value is lexed, the last state on the next is popped and returned.
 func lexValue(lx *lexer) stateFn {
-	// We allow whitespace to precede a value, but NOT new lines.
-	// In array syntax, the array states are responsible for ignoring new
-	// lines.
+	// We allow whitespace to precede a value, but NOT newlines.
+	// In array syntax, the array states are responsible for ignoring newlines.
 	r := lx.next()
 	switch {
 	case isWhitespace(r):
@@ -397,6 +426,10 @@ func lexValue(lx *lexer) stateFn {
 		lx.ignore()
 		lx.emit(itemArray)
 		return lexArrayValue
+	case inlineTableStart:
+		lx.ignore()
+		lx.emit(itemInlineTableStart)
+		return lexInlineTableValue
 	case stringStart:
 		if lx.accept(stringStart) {
 			if lx.accept(stringStart) {
@@ -420,7 +453,7 @@ func lexValue(lx *lexer) stateFn {
 	case '+', '-':
 		return lexNumberStart
 	case '.': // special error case, be kind to users
-		return lx.errorf("Floats must start with a digit, not '.'.")
+		return lx.errorf("floats must start with a digit, not '.'")
 	}
 	if unicode.IsLetter(r) {
 		// Be permissive here; lexBool will give a nice error if the
@@ -430,11 +463,11 @@ func lexValue(lx *lexer) stateFn {
 		lx.backup()
 		return lexBool
 	}
-	return lx.errorf("Expected value but found %q instead.", r)
+	return lx.errorf("expected value but found %q instead", r)
 }
 
 // lexArrayValue consumes one value in an array. It assumes that '[' or ','
-// have already been consumed. All whitespace and new lines are ignored.
+// have already been consumed. All whitespace and newlines are ignored.
 func lexArrayValue(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
@@ -443,10 +476,11 @@ func lexArrayValue(lx *lexer) stateFn {
 	case r == commentStart:
 		lx.push(lexArrayValue)
 		return lexCommentStart
-	case r == arrayValTerm:
-		return lx.errorf("Unexpected array value terminator %q.",
-			arrayValTerm)
+	case r == comma:
+		return lx.errorf("unexpected comma")
 	case r == arrayEnd:
+		// NOTE(caleb): The spec isn't clear about whether you can have
+		// a trailing comma or not, so we'll allow it.
 		return lexArrayEnd
 	}
 
@@ -455,8 +489,9 @@ func lexArrayValue(lx *lexer) stateFn {
 	return lexValue
 }
 
-// lexArrayValueEnd consumes the cruft between values of an array. Namely,
-// it ignores whitespace and expects either a ',' or a ']'.
+// lexArrayValueEnd consumes everything between the end of an array value and
+// the next value (or the end of the array): it ignores whitespace and newlines
+// and expects either a ',' or a ']'.
 func lexArrayValueEnd(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
@@ -465,31 +500,88 @@ func lexArrayValueEnd(lx *lexer) stateFn {
 	case r == commentStart:
 		lx.push(lexArrayValueEnd)
 		return lexCommentStart
-	case r == arrayValTerm:
+	case r == comma:
 		lx.ignore()
 		return lexArrayValue // move on to the next value
 	case r == arrayEnd:
 		return lexArrayEnd
 	}
-	return lx.errorf("Expected an array value terminator %q or an array "+
-		"terminator %q, but got %q instead.", arrayValTerm, arrayEnd, r)
+	return lx.errorf(
+		"expected a comma or array terminator %q, but got %q instead",
+		arrayEnd, r,
+	)
 }
 
-// lexArrayEnd finishes the lexing of an array. It assumes that a ']' has
-// just been consumed.
+// lexArrayEnd finishes the lexing of an array.
+// It assumes that a ']' has just been consumed.
 func lexArrayEnd(lx *lexer) stateFn {
 	lx.ignore()
 	lx.emit(itemArrayEnd)
 	return lx.pop()
 }
 
+// lexInlineTableValue consumes one key/value pair in an inline table.
+// It assumes that '{' or ',' have already been consumed. Whitespace is ignored.
+func lexInlineTableValue(lx *lexer) stateFn {
+	r := lx.next()
+	switch {
+	case isWhitespace(r):
+		return lexSkip(lx, lexInlineTableValue)
+	case isNL(r):
+		return lx.errorf("newlines not allowed within inline tables")
+	case r == commentStart:
+		lx.push(lexInlineTableValue)
+		return lexCommentStart
+	case r == comma:
+		return lx.errorf("unexpected comma")
+	case r == inlineTableEnd:
+		return lexInlineTableEnd
+	}
+	lx.backup()
+	lx.push(lexInlineTableValueEnd)
+	return lexKeyStart
+}
+
+// lexInlineTableValueEnd consumes everything between the end of an inline table
+// key/value pair and the next pair (or the end of the table):
+// it ignores whitespace and expects either a ',' or a '}'.
+func lexInlineTableValueEnd(lx *lexer) stateFn {
+	r := lx.next()
+	switch {
+	case isWhitespace(r):
+		return lexSkip(lx, lexInlineTableValueEnd)
+	case isNL(r):
+		return lx.errorf("newlines not allowed within inline tables")
+	case r == commentStart:
+		lx.push(lexInlineTableValueEnd)
+		return lexCommentStart
+	case r == comma:
+		lx.ignore()
+		return lexInlineTableValue
+	case r == inlineTableEnd:
+		return lexInlineTableEnd
+	}
+	return lx.errorf("expected a comma or an inline table terminator %q, "+
+		"but got %q instead", inlineTableEnd, r)
+}
+
+// lexInlineTableEnd finishes the lexing of an inline table.
+// It assumes that a '}' has just been consumed.
+func lexInlineTableEnd(lx *lexer) stateFn {
+	lx.ignore()
+	lx.emit(itemInlineTableEnd)
+	return lx.pop()
+}
+
 // lexString consumes the inner contents of a string. It assumes that the
 // beginning '"' has already been consumed and ignored.
 func lexString(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
+	case r == eof:
+		return lx.errorf("unexpected EOF")
 	case isNL(r):
-		return lx.errorf("Strings cannot contain new lines.")
+		return lx.errorf("strings cannot contain newlines")
 	case r == '\\':
 		lx.push(lexString)
 		return lexStringEscape
@@ -506,11 +598,12 @@ func lexString(lx *lexer) stateFn {
 // lexMultilineString consumes the inner contents of a string. It assumes that
 // the beginning '"""' has already been consumed and ignored.
 func lexMultilineString(lx *lexer) stateFn {
-	r := lx.next()
-	switch {
-	case r == '\\':
+	switch lx.next() {
+	case eof:
+		return lx.errorf("unexpected EOF")
+	case '\\':
 		return lexMultilineStringEscape
-	case r == stringEnd:
+	case stringEnd:
 		if lx.accept(stringEnd) {
 			if lx.accept(stringEnd) {
 				lx.backup()
@@ -534,8 +627,10 @@ func lexMultilineString(lx *lexer) stateFn {
 func lexRawString(lx *lexer) stateFn {
 	r := lx.next()
 	switch {
+	case r == eof:
+		return lx.errorf("unexpected EOF")
 	case isNL(r):
-		return lx.errorf("Strings cannot contain new lines.")
+		return lx.errorf("strings cannot contain newlines")
 	case r == rawStringEnd:
 		lx.backup()
 		lx.emit(itemRawString)
@@ -547,12 +642,13 @@ func lexRawString(lx *lexer) stateFn {
 }
 
 // lexMultilineRawString consumes a raw string. Nothing can be escaped in such
-// a string. It assumes that the beginning "'" has already been consumed and
+// a string. It assumes that the beginning "'''" has already been consumed and
 // ignored.
 func lexMultilineRawString(lx *lexer) stateFn {
-	r := lx.next()
-	switch {
-	case r == rawStringEnd:
+	switch lx.next() {
+	case eof:
+		return lx.errorf("unexpected EOF")
+	case rawStringEnd:
 		if lx.accept(rawStringEnd) {
 			if lx.accept(rawStringEnd) {
 				lx.backup()
@@ -605,10 +701,9 @@ func lexStringEscape(lx *lexer) stateFn {
 	case 'U':
 		return lexLongUnicodeEscape
 	}
-	return lx.errorf("Invalid escape character %q. Only the following "+
+	return lx.errorf("invalid escape character %q; only the following "+
 		"escape characters are allowed: "+
-		"\\b, \\t, \\n, \\f, \\r, \\\", \\/, \\\\, "+
-		"\\uXXXX and \\UXXXXXXXX.", r)
+		`\b, \t, \n, \f, \r, \", \\, \uXXXX, and \UXXXXXXXX`, r)
 }
 
 func lexShortUnicodeEscape(lx *lexer) stateFn {
@@ -616,8 +711,8 @@ func lexShortUnicodeEscape(lx *lexer) stateFn {
 	for i := 0; i < 4; i++ {
 		r = lx.next()
 		if !isHexadecimal(r) {
-			return lx.errorf("Expected four hexadecimal digits after '\\u', "+
-				"but got '%s' instead.", lx.current())
+			return lx.errorf(`expected four hexadecimal digits after '\u', `+
+				"but got %q instead", lx.current())
 		}
 	}
 	return lx.pop()
@@ -628,8 +723,8 @@ func lexLongUnicodeEscape(lx *lexer) stateFn {
 	for i := 0; i < 8; i++ {
 		r = lx.next()
 		if !isHexadecimal(r) {
-			return lx.errorf("Expected eight hexadecimal digits after '\\U', "+
-				"but got '%s' instead.", lx.current())
+			return lx.errorf(`expected eight hexadecimal digits after '\U', `+
+				"but got %q instead", lx.current())
 		}
 	}
 	return lx.pop()
@@ -647,9 +742,9 @@ func lexNumberOrDateStart(lx *lexer) stateFn {
 	case 'e', 'E':
 		return lexFloat
 	case '.':
-		return lx.errorf("Floats must start with a digit, not '.'.")
+		return lx.errorf("floats must start with a digit, not '.'")
 	}
-	return lx.errorf("Expected a digit but got %q.", r)
+	return lx.errorf("expected a digit but got %q", r)
 }
 
 // lexNumberOrDate consumes either an integer, float or datetime.
@@ -697,9 +792,9 @@ func lexNumberStart(lx *lexer) stateFn {
 	r := lx.next()
 	if !isDigit(r) {
 		if r == '.' {
-			return lx.errorf("Floats must start with a digit, not '.'.")
+			return lx.errorf("floats must start with a digit, not '.'")
 		}
-		return lx.errorf("Expected a digit but got %q.", r)
+		return lx.errorf("expected a digit but got %q", r)
 	}
 	return lexNumber
 }
@@ -757,7 +852,7 @@ func lexBool(lx *lexer) stateFn {
 		lx.emit(itemBool)
 		return lx.pop()
 	}
-	return lx.errorf("Expected value but found %q instead.", s)
+	return lx.errorf("expected value but found %q instead", s)
 }
 
 // lexCommentStart begins the lexing of a comment. It will emit
@@ -769,7 +864,7 @@ func lexCommentStart(lx *lexer) stateFn {
 }
 
 // lexComment lexes an entire comment. It assumes that '#' has been consumed.
-// It will consume *up to* the first new line character, and pass control
+// It will consume *up to* the first newline character, and pass control
 // back to the last state on the stack.
 func lexComment(lx *lexer) stateFn {
 	r := lx.peek()

vendor/github.com/BurntSushi/toml/parse.go

@@ -269,6 +269,41 @@ func (p *parser) value(it item) (interface{}, tomlType) {
 			types = append(types, typ)
 		}
 		return array, p.typeOfArray(types)
+	case itemInlineTableStart:
+		var (
+			hash         = make(map[string]interface{})
+			outerContext = p.context
+			outerKey     = p.currentKey
+		)
+
+		p.context = append(p.context, p.currentKey)
+		p.currentKey = ""
+		for it := p.next(); it.typ != itemInlineTableEnd; it = p.next() {
+			if it.typ != itemKeyStart {
+				p.bug("Expected key start but instead found %q, around line %d",
+					it.val, p.approxLine)
+			}
+			if it.typ == itemCommentStart {
+				p.expect(itemText)
+				continue
+			}
+
+			// retrieve key
+			k := p.next()
+			p.approxLine = k.line
+			kname := p.keyString(k)
+
+			// retrieve value
+			p.currentKey = kname
+			val, typ := p.value(p.next())
+			// make sure we keep metadata up to date
+			p.setType(kname, typ)
+			p.ordered = append(p.ordered, p.context.add(p.currentKey))
+			hash[kname] = val
+		}
+		p.context = outerContext
+		p.currentKey = outerKey
+		return hash, tomlHash
 	}
 	p.bug("Unexpected value type: %s", it.typ)
 	panic("unreachable")

vendor/github.com/Sirupsen/logrus/alt_exit.go

@@ -0,0 +1,64 @@
+package logrus
+
+// The following code was sourced and modified from the
+// https://github.com/tebeka/atexit package governed by the following license:
+//
+// Copyright (c) 2012 Miki Tebeka <miki.tebeka@gmail.com>.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import (
+	"fmt"
+	"os"
+)
+
+var handlers = []func(){}
+
+func runHandler(handler func()) {
+	defer func() {
+		if err := recover(); err != nil {
+			fmt.Fprintln(os.Stderr, "Error: Logrus exit handler error:", err)
+		}
+	}()
+
+	handler()
+}
+
+func runHandlers() {
+	for _, handler := range handlers {
+		runHandler(handler)
+	}
+}
+
+// Exit runs all the Logrus atexit handlers and then terminates the program using os.Exit(code)
+func Exit(code int) {
+	runHandlers()
+	os.Exit(code)
+}
+
+// RegisterExitHandler adds a Logrus Exit handler, call logrus.Exit to invoke
+// all handlers. The handlers will also be invoked when any Fatal log entry is
+// made.
+//
+// This method is useful when a caller wishes to use logrus to log a fatal
+// message but also needs to gracefully shutdown. An example usecase could be
+// closing database connections, or sending a alert that the application is
+// closing.
+func RegisterExitHandler(handler func()) {
+	handlers = append(handlers, handler)
+}

vendor/github.com/Sirupsen/logrus/entry.go

@@ -3,11 +3,21 @@ package logrus
 import (
 	"bytes"
 	"fmt"
-	"io"
 	"os"
+	"sync"
 	"time"
 )
 
+var bufferPool *sync.Pool
+
+func init() {
+	bufferPool = &sync.Pool{
+		New: func() interface{} {
+			return new(bytes.Buffer)
+		},
+	}
+}
+
 // Defines the key when adding errors using WithError.
 var ErrorKey = "error"
 
@@ -29,6 +39,9 @@ type Entry struct {
 
 	// Message passed to Debug, Info, Warn, Error, Fatal or Panic
 	Message string
+
+	// When formatter is called in entry.log(), an Buffer may be set to entry
+	Buffer *bytes.Buffer
 }
 
 func NewEntry(logger *Logger) *Entry {
@@ -39,21 +52,15 @@ func NewEntry(logger *Logger) *Entry {
 	}
 }
 
-// Returns a reader for the entry, which is a proxy to the formatter.
-func (entry *Entry) Reader() (*bytes.Buffer, error) {
-	serialized, err := entry.Logger.Formatter.Format(entry)
-	return bytes.NewBuffer(serialized), err
-}
-
 // Returns the string representation from the reader and ultimately the
 // formatter.
 func (entry *Entry) String() (string, error) {
-	reader, err := entry.Reader()
+	serialized, err := entry.Logger.Formatter.Format(entry)
 	if err != nil {
 		return "", err
 	}
-
-	return reader.String(), err
+	str := string(serialized)
+	return str, nil
 }
 
 // Add an error as single field (using the key defined in ErrorKey) to the Entry.
@@ -81,6 +88,7 @@ func (entry *Entry) WithFields(fields Fields) *Entry {
 // This function is not declared with a pointer value because otherwise
 // race conditions will occur when using multiple goroutines
 func (entry Entry) log(level Level, msg string) {
+	var buffer *bytes.Buffer
 	entry.Time = time.Now()
 	entry.Level = level
 	entry.Message = msg
@@ -90,20 +98,23 @@ func (entry Entry) log(level Level, msg string) {
 		fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
 		entry.Logger.mu.Unlock()
 	}
-
-	reader, err := entry.Reader()
+	buffer = bufferPool.Get().(*bytes.Buffer)
+	buffer.Reset()
+	defer bufferPool.Put(buffer)
+	entry.Buffer = buffer
+	serialized, err := entry.Logger.Formatter.Format(&entry)
+	entry.Buffer = nil
 	if err != nil {
 		entry.Logger.mu.Lock()
 		fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err)
 		entry.Logger.mu.Unlock()
-	}
-
-	entry.Logger.mu.Lock()
-	defer entry.Logger.mu.Unlock()
-
-	_, err = io.Copy(entry.Logger.Out, reader)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
+	} else {
+		entry.Logger.mu.Lock()
+		_, err = entry.Logger.Out.Write(serialized)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
+		}
+		entry.Logger.mu.Unlock()
 	}
 
 	// To avoid Entry#log() returning a value that only would make sense for
@@ -150,7 +161,7 @@ func (entry *Entry) Fatal(args ...interface{}) {
 	if entry.Logger.Level >= FatalLevel {
 		entry.log(FatalLevel, fmt.Sprint(args...))
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (entry *Entry) Panic(args ...interface{}) {
@@ -198,7 +209,7 @@ func (entry *Entry) Fatalf(format string, args ...interface{}) {
 	if entry.Logger.Level >= FatalLevel {
 		entry.Fatal(fmt.Sprintf(format, args...))
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (entry *Entry) Panicf(format string, args ...interface{}) {
@@ -245,7 +256,7 @@ func (entry *Entry) Fatalln(args ...interface{}) {
 	if entry.Logger.Level >= FatalLevel {
 		entry.Fatal(entry.sprintlnn(args...))
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (entry *Entry) Panicln(args ...interface{}) {

vendor/github.com/Sirupsen/logrus/examples/basic/basic.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"github.com/Sirupsen/logrus"
+	// "os"
 )
 
 var log = logrus.New()
@@ -9,6 +10,14 @@ var log = logrus.New()
 func init() {
 	log.Formatter = new(logrus.JSONFormatter)
 	log.Formatter = new(logrus.TextFormatter) // default
+
+	// file, err := os.OpenFile("logrus.log", os.O_CREATE|os.O_WRONLY, 0666)
+	// if err == nil {
+	// 	log.Out = file
+	// } else {
+	// 	log.Info("Failed to log to file, using default stderr")
+	// }
+
 	log.Level = logrus.DebugLevel
 }
 

vendor/github.com/Sirupsen/logrus/formatter.go

@@ -31,18 +31,15 @@ type Formatter interface {
 // It's not exported because it's still using Data in an opinionated way. It's to
 // avoid code duplication between the two default formatters.
 func prefixFieldClashes(data Fields) {
-	_, ok := data["time"]
-	if ok {
-		data["fields.time"] = data["time"]
+	if t, ok := data["time"]; ok {
+		data["fields.time"] = t
 	}
 
-	_, ok = data["msg"]
-	if ok {
-		data["fields.msg"] = data["msg"]
+	if m, ok := data["msg"]; ok {
+		data["fields.msg"] = m
 	}
 
-	_, ok = data["level"]
-	if ok {
-		data["fields.level"] = data["level"]
+	if l, ok := data["level"]; ok {
+		data["fields.level"] = l
 	}
 }

vendor/github.com/Sirupsen/logrus/formatters/logstash/logstash.go

@@ -1,61 +0,0 @@
-package logstash
-
-import (
-	"encoding/json"
-	"fmt"
-
-	"github.com/Sirupsen/logrus"
-)
-
-// Formatter generates json in logstash format.
-// Logstash site: http://logstash.net/
-type LogstashFormatter struct {
-	Type string // if not empty use for logstash type field.
-
-	// TimestampFormat sets the format used for timestamps.
-	TimestampFormat string
-}
-
-func (f *LogstashFormatter) Format(entry *logrus.Entry) ([]byte, error) {
-	fields := make(logrus.Fields)
-	for k, v := range entry.Data {
-		fields[k] = v
-	}
-
-	fields["@version"] = 1
-
-	if f.TimestampFormat == "" {
-		f.TimestampFormat = logrus.DefaultTimestampFormat
-	}
-
-	fields["@timestamp"] = entry.Time.Format(f.TimestampFormat)
-
-	// set message field
-	v, ok := entry.Data["message"]
-	if ok {
-		fields["fields.message"] = v
-	}
-	fields["message"] = entry.Message
-
-	// set level field
-	v, ok = entry.Data["level"]
-	if ok {
-		fields["fields.level"] = v
-	}
-	fields["level"] = entry.Level.String()
-
-	// set type field
-	if f.Type != "" {
-		v, ok = entry.Data["type"]
-		if ok {
-			fields["fields.type"] = v
-		}
-		fields["type"] = f.Type
-	}
-
-	serialized, err := json.Marshal(fields)
-	if err != nil {
-		return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
-	}
-	return append(serialized, '\n'), nil
-}

vendor/github.com/Sirupsen/logrus/json_formatter.go

@@ -5,9 +5,40 @@ import (
 	"fmt"
 )
 
+type fieldKey string
+type FieldMap map[fieldKey]string
+
+const (
+	FieldKeyMsg   = "msg"
+	FieldKeyLevel = "level"
+	FieldKeyTime  = "time"
+)
+
+func (f FieldMap) resolve(key fieldKey) string {
+	if k, ok := f[key]; ok {
+		return k
+	}
+
+	return string(key)
+}
+
 type JSONFormatter struct {
 	// TimestampFormat sets the format used for marshaling timestamps.
 	TimestampFormat string
+
+	// DisableTimestamp allows disabling automatic timestamps in output
+	DisableTimestamp bool
+
+	// FieldMap allows users to customize the names of keys for various fields.
+	// As an example:
+	// formatter := &JSONFormatter{
+	//   	FieldMap: FieldMap{
+	// 		 FieldKeyTime: "@timestamp",
+	// 		 FieldKeyLevel: "@level",
+	// 		 FieldKeyLevel: "@message",
+	//    },
+	// }
+	FieldMap FieldMap
 }
 
 func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
@@ -29,9 +60,11 @@ func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
 		timestampFormat = DefaultTimestampFormat
 	}
 
-	data["time"] = entry.Time.Format(timestampFormat)
-	data["msg"] = entry.Message
-	data["level"] = entry.Level.String()
+	if !f.DisableTimestamp {
+		data[f.FieldMap.resolve(FieldKeyTime)] = entry.Time.Format(timestampFormat)
+	}
+	data[f.FieldMap.resolve(FieldKeyMsg)] = entry.Message
+	data[f.FieldMap.resolve(FieldKeyLevel)] = entry.Level.String()
 
 	serialized, err := json.Marshal(data)
 	if err != nil {

vendor/github.com/Sirupsen/logrus/logger.go

@@ -26,8 +26,31 @@ type Logger struct {
 	// to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be
 	// logged. `logrus.Debug` is useful in
 	Level Level
-	// Used to sync writing to the log.
-	mu sync.Mutex
+	// Used to sync writing to the log. Locking is enabled by Default
+	mu MutexWrap
+	// Reusable empty entry
+	entryPool sync.Pool
+}
+
+type MutexWrap struct {
+	lock     sync.Mutex
+	disabled bool
+}
+
+func (mw *MutexWrap) Lock() {
+	if !mw.disabled {
+		mw.lock.Lock()
+	}
+}
+
+func (mw *MutexWrap) Unlock() {
+	if !mw.disabled {
+		mw.lock.Unlock()
+	}
+}
+
+func (mw *MutexWrap) Disable() {
+	mw.disabled = true
 }
 
 // Creates a new logger. Configuration should be set by changing `Formatter`,
@@ -51,162 +74,235 @@ func New() *Logger {
 	}
 }
 
-// Adds a field to the log entry, note that you it doesn't log until you call
+func (logger *Logger) newEntry() *Entry {
+	entry, ok := logger.entryPool.Get().(*Entry)
+	if ok {
+		return entry
+	}
+	return NewEntry(logger)
+}
+
+func (logger *Logger) releaseEntry(entry *Entry) {
+	logger.entryPool.Put(entry)
+}
+
+// Adds a field to the log entry, note that it doesn't log until you call
 // Debug, Print, Info, Warn, Fatal or Panic. It only creates a log entry.
 // If you want multiple fields, use `WithFields`.
 func (logger *Logger) WithField(key string, value interface{}) *Entry {
-	return NewEntry(logger).WithField(key, value)
+	entry := logger.newEntry()
+	defer logger.releaseEntry(entry)
+	return entry.WithField(key, value)
 }
 
 // Adds a struct of fields to the log entry. All it does is call `WithField` for
 // each `Field`.
 func (logger *Logger) WithFields(fields Fields) *Entry {
-	return NewEntry(logger).WithFields(fields)
+	entry := logger.newEntry()
+	defer logger.releaseEntry(entry)
+	return entry.WithFields(fields)
 }
 
 // Add an error as single field to the log entry.  All it does is call
 // `WithError` for the given `error`.
 func (logger *Logger) WithError(err error) *Entry {
-	return NewEntry(logger).WithError(err)
+	entry := logger.newEntry()
+	defer logger.releaseEntry(entry)
+	return entry.WithError(err)
 }
 
 func (logger *Logger) Debugf(format string, args ...interface{}) {
 	if logger.Level >= DebugLevel {
-		NewEntry(logger).Debugf(format, args...)
+		entry := logger.newEntry()
+		entry.Debugf(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Infof(format string, args ...interface{}) {
 	if logger.Level >= InfoLevel {
-		NewEntry(logger).Infof(format, args...)
+		entry := logger.newEntry()
+		entry.Infof(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Printf(format string, args ...interface{}) {
-	NewEntry(logger).Printf(format, args...)
+	entry := logger.newEntry()
+	entry.Printf(format, args...)
+	logger.releaseEntry(entry)
 }
 
 func (logger *Logger) Warnf(format string, args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warnf(format, args...)
+		entry := logger.newEntry()
+		entry.Warnf(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Warningf(format string, args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warnf(format, args...)
+		entry := logger.newEntry()
+		entry.Warnf(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Errorf(format string, args ...interface{}) {
 	if logger.Level >= ErrorLevel {
-		NewEntry(logger).Errorf(format, args...)
+		entry := logger.newEntry()
+		entry.Errorf(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Fatalf(format string, args ...interface{}) {
 	if logger.Level >= FatalLevel {
-		NewEntry(logger).Fatalf(format, args...)
+		entry := logger.newEntry()
+		entry.Fatalf(format, args...)
+		logger.releaseEntry(entry)
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (logger *Logger) Panicf(format string, args ...interface{}) {
 	if logger.Level >= PanicLevel {
-		NewEntry(logger).Panicf(format, args...)
+		entry := logger.newEntry()
+		entry.Panicf(format, args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Debug(args ...interface{}) {
 	if logger.Level >= DebugLevel {
-		NewEntry(logger).Debug(args...)
+		entry := logger.newEntry()
+		entry.Debug(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Info(args ...interface{}) {
 	if logger.Level >= InfoLevel {
-		NewEntry(logger).Info(args...)
+		entry := logger.newEntry()
+		entry.Info(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Print(args ...interface{}) {
-	NewEntry(logger).Info(args...)
+	entry := logger.newEntry()
+	entry.Info(args...)
+	logger.releaseEntry(entry)
 }
 
 func (logger *Logger) Warn(args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warn(args...)
+		entry := logger.newEntry()
+		entry.Warn(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Warning(args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warn(args...)
+		entry := logger.newEntry()
+		entry.Warn(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Error(args ...interface{}) {
 	if logger.Level >= ErrorLevel {
-		NewEntry(logger).Error(args...)
+		entry := logger.newEntry()
+		entry.Error(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Fatal(args ...interface{}) {
 	if logger.Level >= FatalLevel {
-		NewEntry(logger).Fatal(args...)
+		entry := logger.newEntry()
+		entry.Fatal(args...)
+		logger.releaseEntry(entry)
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (logger *Logger) Panic(args ...interface{}) {
 	if logger.Level >= PanicLevel {
-		NewEntry(logger).Panic(args...)
+		entry := logger.newEntry()
+		entry.Panic(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Debugln(args ...interface{}) {
 	if logger.Level >= DebugLevel {
-		NewEntry(logger).Debugln(args...)
+		entry := logger.newEntry()
+		entry.Debugln(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Infoln(args ...interface{}) {
 	if logger.Level >= InfoLevel {
-		NewEntry(logger).Infoln(args...)
+		entry := logger.newEntry()
+		entry.Infoln(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Println(args ...interface{}) {
-	NewEntry(logger).Println(args...)
+	entry := logger.newEntry()
+	entry.Println(args...)
+	logger.releaseEntry(entry)
 }
 
 func (logger *Logger) Warnln(args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warnln(args...)
+		entry := logger.newEntry()
+		entry.Warnln(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Warningln(args ...interface{}) {
 	if logger.Level >= WarnLevel {
-		NewEntry(logger).Warnln(args...)
+		entry := logger.newEntry()
+		entry.Warnln(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Errorln(args ...interface{}) {
 	if logger.Level >= ErrorLevel {
-		NewEntry(logger).Errorln(args...)
+		entry := logger.newEntry()
+		entry.Errorln(args...)
+		logger.releaseEntry(entry)
 	}
 }
 
 func (logger *Logger) Fatalln(args ...interface{}) {
 	if logger.Level >= FatalLevel {
-		NewEntry(logger).Fatalln(args...)
+		entry := logger.newEntry()
+		entry.Fatalln(args...)
+		logger.releaseEntry(entry)
 	}
-	os.Exit(1)
+	Exit(1)
 }
 
 func (logger *Logger) Panicln(args ...interface{}) {
 	if logger.Level >= PanicLevel {
-		NewEntry(logger).Panicln(args...)
+		entry := logger.newEntry()
+		entry.Panicln(args...)
+		logger.releaseEntry(entry)
 	}
 }
+
+//When file is opened with appending mode, it's safe to
+//write concurrently to a file (within 4k message on Linux).
+//In these cases user can choose to disable the lock.
+func (logger *Logger) SetNoLock() {
+	logger.mu.Disable()
+}

vendor/github.com/Sirupsen/logrus/terminal_appengine.go

@@ -0,0 +1,10 @@
+// +build appengine
+
+package logrus
+
+import "io"
+
+// IsTerminal returns true if stderr's file descriptor is a terminal.
+func IsTerminal(f io.Writer) bool {
+	return true
+}

vendor/github.com/Sirupsen/logrus/terminal_bsd.go

@@ -1,4 +1,5 @@
 // +build darwin freebsd openbsd netbsd dragonfly
+// +build !appengine
 
 package logrus
 

vendor/github.com/Sirupsen/logrus/terminal_linux.go

@@ -3,6 +3,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// +build !appengine
+
 package logrus
 
 import "syscall"

vendor/github.com/Sirupsen/logrus/terminal_notwindows.go

@@ -4,18 +4,25 @@
 // license that can be found in the LICENSE file.
 
 // +build linux darwin freebsd openbsd netbsd dragonfly
+// +build !appengine
 
 package logrus
 
 import (
+	"io"
+	"os"
 	"syscall"
 	"unsafe"
 )
 
 // IsTerminal returns true if stderr's file descriptor is a terminal.
-func IsTerminal() bool {
-	fd := syscall.Stderr
+func IsTerminal(f io.Writer) bool {
 	var termios Termios
-	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
-	return err == 0
+	switch v := f.(type) {
+	case *os.File:
+		_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(v.Fd()), ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
+		return err == 0
+	default:
+		return false
+	}
 }

vendor/github.com/Sirupsen/logrus/terminal_solaris.go

@@ -1,15 +1,21 @@
-// +build solaris
+// +build solaris,!appengine
 
 package logrus
 
 import (
+	"io"
 	"os"
 
 	"golang.org/x/sys/unix"
 )
 
 // IsTerminal returns true if the given file descriptor is a terminal.
-func IsTerminal() bool {
-	_, err := unix.IoctlGetTermios(int(os.Stdout.Fd()), unix.TCGETA)
-	return err == nil
+func IsTerminal(f io.Writer) bool {
+	switch v := f.(type) {
+	case *os.File:
+		_, err := unix.IoctlGetTermios(int(v.Fd()), unix.TCGETA)
+		return err == nil
+	default:
+		return false
+	}
 }

vendor/github.com/Sirupsen/logrus/terminal_windows.go

@@ -3,11 +3,13 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build windows
+// +build windows,!appengine
 
 package logrus
 
 import (
+	"io"
+	"os"
 	"syscall"
 	"unsafe"
 )
@@ -19,9 +21,13 @@ var (
 )
 
 // IsTerminal returns true if stderr's file descriptor is a terminal.
-func IsTerminal() bool {
-	fd := syscall.Stderr
-	var st uint32
-	r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(fd), uintptr(unsafe.Pointer(&st)), 0)
-	return r != 0 && e == 0
+func IsTerminal(f io.Writer) bool {
+	switch v := f.(type) {
+	case *os.File:
+		var st uint32
+		r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(v.Fd()), uintptr(unsafe.Pointer(&st)), 0)
+		return r != 0 && e == 0
+	default:
+		return false
+	}
 }

vendor/github.com/Sirupsen/logrus/text_formatter.go

@@ -3,9 +3,9 @@ package logrus
 import (
 	"bytes"
 	"fmt"
-	"runtime"
 	"sort"
 	"strings"
+	"sync"
 	"time"
 )
 
@@ -20,16 +20,10 @@ const (
 
 var (
 	baseTimestamp time.Time
-	isTerminal    bool
 )
 
 func init() {
 	baseTimestamp = time.Now()
-	isTerminal = IsTerminal()
-}
-
-func miniTS() int {
-	return int(time.Since(baseTimestamp) / time.Second)
 }
 
 type TextFormatter struct {
@@ -54,10 +48,32 @@ type TextFormatter struct {
 	// that log extremely frequently and don't use the JSON formatter this may not
 	// be desired.
 	DisableSorting bool
+
+	// QuoteEmptyFields will wrap empty fields in quotes if true
+	QuoteEmptyFields bool
+
+	// QuoteCharacter can be set to the override the default quoting character "
+	// with something else. For example: ', or `.
+	QuoteCharacter string
+
+	// Whether the logger's out is to a terminal
+	isTerminal bool
+
+	sync.Once
+}
+
+func (f *TextFormatter) init(entry *Entry) {
+	if len(f.QuoteCharacter) == 0 {
+		f.QuoteCharacter = "\""
+	}
+	if entry.Logger != nil {
+		f.isTerminal = IsTerminal(entry.Logger.Out)
+	}
 }
 
 func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
-	var keys []string = make([]string, 0, len(entry.Data))
+	var b *bytes.Buffer
+	keys := make([]string, 0, len(entry.Data))
 	for k := range entry.Data {
 		keys = append(keys, k)
 	}
@@ -65,13 +81,17 @@ func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
 	if !f.DisableSorting {
 		sort.Strings(keys)
 	}
-
-	b := &bytes.Buffer{}
+	if entry.Buffer != nil {
+		b = entry.Buffer
+	} else {
+		b = &bytes.Buffer{}
+	}
 
 	prefixFieldClashes(entry.Data)
 
-	isColorTerminal := isTerminal && (runtime.GOOS != "windows")
-	isColored := (f.ForceColors || isColorTerminal) && !f.DisableColors
+	f.Do(func() { f.init(entry) })
+
+	isColored := (f.ForceColors || f.isTerminal) && !f.DisableColors
 
 	timestampFormat := f.TimestampFormat
 	if timestampFormat == "" {
@@ -111,51 +131,59 @@ func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []strin
 
 	levelText := strings.ToUpper(entry.Level.String())[0:4]
 
-	if !f.FullTimestamp {
-		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, miniTS(), entry.Message)
+	if f.DisableTimestamp {
+		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m %-44s ", levelColor, levelText, entry.Message)
+	} else if !f.FullTimestamp {
+		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, int(entry.Time.Sub(baseTimestamp)/time.Second), entry.Message)
 	} else {
 		fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ", levelColor, levelText, entry.Time.Format(timestampFormat), entry.Message)
 	}
 	for _, k := range keys {
 		v := entry.Data[k]
-		fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=%+v", levelColor, k, v)
+		fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=", levelColor, k)
+		f.appendValue(b, v)
 	}
 }
 
-func needsQuoting(text string) bool {
+func (f *TextFormatter) needsQuoting(text string) bool {
+	if f.QuoteEmptyFields && len(text) == 0 {
+		return true
+	}
 	for _, ch := range text {
 		if !((ch >= 'a' && ch <= 'z') ||
 			(ch >= 'A' && ch <= 'Z') ||
 			(ch >= '0' && ch <= '9') ||
 			ch == '-' || ch == '.') {
-			return false
+			return true
 		}
 	}
-	return true
+	return false
 }
 
 func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key string, value interface{}) {
 
 	b.WriteString(key)
 	b.WriteByte('=')
+	f.appendValue(b, value)
+	b.WriteByte(' ')
+}
 
+func (f *TextFormatter) appendValue(b *bytes.Buffer, value interface{}) {
 	switch value := value.(type) {
 	case string:
-		if needsQuoting(value) {
+		if !f.needsQuoting(value) {
 			b.WriteString(value)
 		} else {
-			fmt.Fprintf(b, "%q", value)
+			fmt.Fprintf(b, "%s%v%s", f.QuoteCharacter, value, f.QuoteCharacter)
 		}
 	case error:
 		errmsg := value.Error()
-		if needsQuoting(errmsg) {
+		if !f.needsQuoting(errmsg) {
 			b.WriteString(errmsg)
 		} else {
-			fmt.Fprintf(b, "%q", value)
+			fmt.Fprintf(b, "%s%v%s", f.QuoteCharacter, errmsg, f.QuoteCharacter)
 		}
 	default:
 		fmt.Fprint(b, value)
 	}
-
-	b.WriteByte(' ')
 }

vendor/github.com/Sirupsen/logrus/writer.go

@@ -7,21 +7,52 @@ import (
 )
 
 func (logger *Logger) Writer() *io.PipeWriter {
+	return logger.WriterLevel(InfoLevel)
+}
+
+func (logger *Logger) WriterLevel(level Level) *io.PipeWriter {
+	return NewEntry(logger).WriterLevel(level)
+}
+
+func (entry *Entry) Writer() *io.PipeWriter {
+	return entry.WriterLevel(InfoLevel)
+}
+
+func (entry *Entry) WriterLevel(level Level) *io.PipeWriter {
 	reader, writer := io.Pipe()
 
-	go logger.writerScanner(reader)
+	var printFunc func(args ...interface{})
+
+	switch level {
+	case DebugLevel:
+		printFunc = entry.Debug
+	case InfoLevel:
+		printFunc = entry.Info
+	case WarnLevel:
+		printFunc = entry.Warn
+	case ErrorLevel:
+		printFunc = entry.Error
+	case FatalLevel:
+		printFunc = entry.Fatal
+	case PanicLevel:
+		printFunc = entry.Panic
+	default:
+		printFunc = entry.Print
+	}
+
+	go entry.writerScanner(reader, printFunc)
 	runtime.SetFinalizer(writer, writerFinalizer)
 
 	return writer
 }
 
-func (logger *Logger) writerScanner(reader *io.PipeReader) {
+func (entry *Entry) writerScanner(reader *io.PipeReader, printFunc func(args ...interface{})) {
 	scanner := bufio.NewScanner(reader)
 	for scanner.Scan() {
-		logger.Print(scanner.Text())
+		printFunc(scanner.Text())
 	}
 	if err := scanner.Err(); err != nil {
-		logger.Errorf("Error while reading from Writer: %s", err)
+		entry.Errorf("Error while reading from Writer: %s", err)
 	}
 	reader.Close()
 }

vendor/github.com/go-telegram-bot-api/telegram-bot-api/bot.go

@@ -21,8 +21,10 @@ import (
 
 // BotAPI allows you to interact with the Telegram Bot API.
 type BotAPI struct {
-	Token  string       `json:"token"`
-	Debug  bool         `json:"debug"`
+	Token  string `json:"token"`
+	Debug  bool   `json:"debug"`
+	Buffer int    `json:"buffer"`
+
 	Self   User         `json:"-"`
 	Client *http.Client `json:"-"`
 }
@@ -42,11 +44,12 @@ func NewBotAPIWithClient(token string, client *http.Client) (*BotAPI, error) {
 	bot := &BotAPI{
 		Token:  token,
 		Client: client,
+		Buffer: 100,
 	}
 
 	self, err := bot.GetMe()
 	if err != nil {
-		return &BotAPI{}, err
+		return nil, err
 	}
 
 	bot.Self = self
@@ -68,6 +71,10 @@ func (bot *BotAPI) MakeRequest(endpoint string, params url.Values) (APIResponse,
 		return APIResponse{}, errors.New(ErrAPIForbidden)
 	}
 
+	if resp.StatusCode != http.StatusOK {
+		return APIResponse{}, errors.New(http.StatusText(resp.StatusCode))
+	}
+
 	bytes, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return APIResponse{}, err
@@ -457,7 +464,7 @@ func (bot *BotAPI) GetWebhookInfo() (WebhookInfo, error) {
 
 // GetUpdatesChan starts and returns a channel for getting updates.
 func (bot *BotAPI) GetUpdatesChan(config UpdateConfig) (UpdatesChannel, error) {
-	ch := make(chan Update, 100)
+	ch := make(chan Update, bot.Buffer)
 
 	go func() {
 		for {
@@ -484,7 +491,7 @@ func (bot *BotAPI) GetUpdatesChan(config UpdateConfig) (UpdatesChannel, error) {
 
 // ListenForWebhook registers a http handler for a webhook.
 func (bot *BotAPI) ListenForWebhook(pattern string) UpdatesChannel {
-	ch := make(chan Update, 100)
+	ch := make(chan Update, bot.Buffer)
 
 	http.HandleFunc(pattern, func(w http.ResponseWriter, r *http.Request) {
 		bytes, _ := ioutil.ReadAll(r.Body)

vendor/github.com/go-telegram-bot-api/telegram-bot-api/configs.go

@@ -768,8 +768,8 @@ type UpdateConfig struct {
 
 // WebhookConfig contains information about a SetWebhook request.
 type WebhookConfig struct {
-	URL         *url.URL
-	Certificate interface{}
+	URL            *url.URL
+	Certificate    interface{}
 	MaxConnections int
 }
 

vendor/github.com/go-telegram-bot-api/telegram-bot-api/helpers.go

@@ -318,21 +318,6 @@ func NewWebhookWithCert(link string, file interface{}) WebhookConfig {
 	}
 }
 
-// NewWebhookWithCert creates a new webhook with a certificate and max_connections.
-//
-// link is the url you wish to get webhooks,
-// file contains a string to a file, FileReader, or FileBytes.
-// maxConnections defines maximum number of connections from telegram to your server
-func NewWebhookWithCertAndMaxConnections(link string, file interface{}, maxConnections int) WebhookConfig {
-	u, _ := url.Parse(link)
-
-	return WebhookConfig{
-		URL:         u,
-		Certificate: file,
-		MaxConnections: maxConnections,
-	}
-}
-
 // NewInlineQueryResultArticle creates a new inline query article.
 func NewInlineQueryResultArticle(id, title, messageText string) InlineQueryResultArticle {
 	return InlineQueryResultArticle{

vendor/github.com/go-telegram-bot-api/telegram-bot-api/types.go

@@ -194,7 +194,7 @@ func (m *Message) CommandArguments() string {
 		return ""
 	}
 
-	return strings.SplitN(m.Text, " ", 2)[1]
+	return split[1]
 }
 
 // MessageEntity contains information about data in a Message.

vendor/github.com/gorilla/schema/cache.go

@@ -138,7 +138,12 @@ func (c *cache) create(t reflect.Type, info *structInfo) *structInfo {
 				ft = ft.Elem()
 			}
 			if ft.Kind() == reflect.Struct {
+				bef := len(info.fields)
 				c.create(ft, info)
+				for _, fi := range info.fields[bef:len(info.fields)] {
+					// exclude required check because duplicated to embedded field
+					fi.required = false
+				}
 			}
 		}
 		c.createField(field, info)
@@ -148,7 +153,7 @@ func (c *cache) create(t reflect.Type, info *structInfo) *structInfo {
 
 // createField creates a fieldInfo for the given field.
 func (c *cache) createField(field reflect.StructField, info *structInfo) {
-	alias := fieldAlias(field, c.tag)
+	alias, options := fieldAlias(field, c.tag)
 	if alias == "-" {
 		// Ignore this field.
 		return
@@ -173,17 +178,19 @@ func (c *cache) createField(field reflect.StructField, info *structInfo) {
 		}
 	}
 	if isStruct = ft.Kind() == reflect.Struct; !isStruct {
-		if conv := c.conv[ft.Kind()]; conv == nil {
+		if conv := c.converter(ft); conv == nil {
 			// Type is not supported.
 			return
 		}
 	}
 
 	info.fields = append(info.fields, &fieldInfo{
-		typ:   field.Type,
-		name:  field.Name,
-		ss:    isSlice && isStruct,
-		alias: alias,
+		typ:      field.Type,
+		name:     field.Name,
+		ss:       isSlice && isStruct,
+		alias:    alias,
+		anon:     field.Anonymous,
+		required: options.Contains("required"),
 	})
 }
 
@@ -212,10 +219,12 @@ func (i *structInfo) get(alias string) *fieldInfo {
 }
 
 type fieldInfo struct {
-	typ   reflect.Type
-	name  string // field name in the struct.
-	ss    bool   // true if this is a slice of structs.
-	alias string
+	typ      reflect.Type
+	name     string // field name in the struct.
+	ss       bool   // true if this is a slice of structs.
+	alias    string
+	anon     bool // is an embedded field
+	required bool // tag option
 }
 
 type pathPart struct {
@@ -227,19 +236,33 @@ type pathPart struct {
 // ----------------------------------------------------------------------------
 
 // fieldAlias parses a field tag to get a field alias.
-func fieldAlias(field reflect.StructField, tagName string) string {
-	var alias string
+func fieldAlias(field reflect.StructField, tagName string) (alias string, options tagOptions) {
 	if tag := field.Tag.Get(tagName); tag != "" {
-		// For now tags only support the name but let's follow the
-		// comma convention from encoding/json and others.
-		if idx := strings.Index(tag, ","); idx == -1 {
-			alias = tag
-		} else {
-			alias = tag[:idx]
-		}
+		alias, options = parseTag(tag)
 	}
 	if alias == "" {
 		alias = field.Name
 	}
-	return alias
+	return alias, options
+}
+
+// tagOptions is the string following a comma in a struct field's tag, or
+// the empty string. It does not include the leading comma.
+type tagOptions []string
+
+// parseTag splits a struct field's url tag into its name and comma-separated
+// options.
+func parseTag(tag string) (string, tagOptions) {
+	s := strings.Split(tag, ",")
+	return s[0], s[1:]
+}
+
+// Contains checks whether the tagOptions contains the specified option.
+func (o tagOptions) Contains(option string) bool {
+	for _, s := range o {
+		if s == option {
+			return true
+		}
+	}
+	return false
 }

vendor/github.com/gorilla/schema/decoder.go

@@ -87,9 +87,60 @@ func (d *Decoder) Decode(dst interface{}, src map[string][]string) error {
 	if len(errors) > 0 {
 		return errors
 	}
+	return d.checkRequired(t, src, "")
+}
+
+// checkRequired checks whether requred field empty
+//
+// check type t recursively if t has struct fields, and prefix is same as parsePath: in dotted notation
+//
+// src is the source map for decoding, we use it here to see if those required fields are included in src
+func (d *Decoder) checkRequired(t reflect.Type, src map[string][]string, prefix string) error {
+	struc := d.cache.get(t)
+	if struc == nil {
+		// unexpect, cache.get never return nil
+		return errors.New("cache fail")
+	}
+
+	for _, f := range struc.fields {
+		if f.typ.Kind() == reflect.Struct {
+			err := d.checkRequired(f.typ, src, prefix+f.alias+".")
+			if err != nil {
+				if !f.anon {
+					return err
+				}
+				// check embedded parent field.
+				err2 := d.checkRequired(f.typ, src, prefix)
+				if err2 != nil {
+					return err
+				}
+			}
+		}
+		if f.required {
+			key := f.alias
+			if prefix != "" {
+				key = prefix + key
+			}
+			if isEmpty(f.typ, src[key]) {
+				return fmt.Errorf("%v is empty", key)
+			}
+		}
+	}
 	return nil
 }
 
+// isEmpty returns true if value is empty for specific type
+func isEmpty(t reflect.Type, value []string) bool {
+	if len(value) == 0 {
+		return true
+	}
+	switch t.Kind() {
+	case boolType, float32Type, float64Type, intType, int8Type, int32Type, int64Type, stringType, uint8Type, uint16Type, uint32Type, uint64Type:
+		return len(value[0]) == 0
+	}
+	return false
+}
+
 // decode fills a struct field using a parsed path.
 func (d *Decoder) decode(v reflect.Value, path string, parts []pathPart, values []string) error {
 	// Get the field walking the struct fields by index.

vendor/github.com/gorilla/schema/doc.go

@@ -12,7 +12,7 @@ The basic usage is really simple. Given this struct:
 		Phone string
 	}
 
-...we can fill it passing a map to the Load() function:
+...we can fill it passing a map to the Decode() function:
 
 	values := map[string][]string{
 		"Name":  {"John"},

vendor/github.com/gorilla/schema/encoder.go

@@ -0,0 +1,161 @@
+package schema
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"strconv"
+)
+
+type encoderFunc func(reflect.Value) string
+
+// Encoder encodes values from a struct into url.Values.
+type Encoder struct {
+	cache  *cache
+	regenc map[reflect.Type]encoderFunc
+}
+
+// NewEncoder returns a new Encoder with defaults.
+func NewEncoder() *Encoder {
+	return &Encoder{cache: newCache(), regenc: make(map[reflect.Type]encoderFunc)}
+}
+
+// Encode encodes a struct into map[string][]string.
+//
+// Intended for use with url.Values.
+func (e *Encoder) Encode(src interface{}, dst map[string][]string) error {
+	v := reflect.ValueOf(src)
+
+	return e.encode(v, dst)
+}
+
+// RegisterEncoder registers a converter for encoding a custom type.
+func (e *Encoder) RegisterEncoder(value interface{}, encoder func(reflect.Value) string) {
+	e.regenc[reflect.TypeOf(value)] = encoder
+}
+
+// SetAliasTag changes the tag used to locate custom field aliases.
+// The default tag is "schema".
+func (e *Encoder) SetAliasTag(tag string) {
+	e.cache.tag = tag
+}
+
+func (e *Encoder) encode(v reflect.Value, dst map[string][]string) error {
+	if v.Kind() == reflect.Ptr {
+		v = v.Elem()
+	}
+	if v.Kind() != reflect.Struct {
+		return errors.New("schema: interface must be a struct")
+	}
+	t := v.Type()
+
+	errors := MultiError{}
+
+	for i := 0; i < v.NumField(); i++ {
+		name, opts := fieldAlias(t.Field(i), e.cache.tag)
+		if name == "-" {
+			continue
+		}
+
+		if v.Field(i).Type().Kind() == reflect.Struct {
+			e.encode(v.Field(i), dst)
+			continue
+		}
+
+		encFunc := typeEncoder(v.Field(i).Type(), e.regenc)
+
+		// Encode non-slice types and custom implementations immediately.
+		if encFunc != nil {
+			value := encFunc(v.Field(i))
+			if value == "" && opts.Contains("omitempty") {
+				continue
+			}
+
+			dst[name] = append(dst[name], value)
+			continue
+		}
+
+		if v.Field(i).Type().Kind() == reflect.Slice {
+			encFunc = typeEncoder(v.Field(i).Type().Elem(), e.regenc)
+		}
+
+		if encFunc == nil {
+			errors[v.Field(i).Type().String()] = fmt.Errorf("schema: encoder not found for %v", v.Field(i))
+			continue
+		}
+
+		// Encode a slice.
+		if v.Field(i).Len() == 0 && opts.Contains("omitempty") {
+			continue
+		}
+
+		dst[name] = []string{}
+		for j := 0; j < v.Field(i).Len(); j++ {
+			dst[name] = append(dst[name], encFunc(v.Field(i).Index(j)))
+		}
+	}
+
+	if len(errors) > 0 {
+		return errors
+	}
+	return nil
+}
+
+func typeEncoder(t reflect.Type, reg map[reflect.Type]encoderFunc) encoderFunc {
+	if f, ok := reg[t]; ok {
+		return f
+	}
+
+	switch t.Kind() {
+	case reflect.Bool:
+		return encodeBool
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return encodeInt
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+		return encodeUint
+	case reflect.Float32:
+		return encodeFloat32
+	case reflect.Float64:
+		return encodeFloat64
+	case reflect.Ptr:
+		f := typeEncoder(t.Elem(), reg)
+		return func(v reflect.Value) string {
+			if v.IsNil() {
+				return "null"
+			}
+			return f(v.Elem())
+		}
+	case reflect.String:
+		return encodeString
+	default:
+		return nil
+	}
+}
+
+func encodeBool(v reflect.Value) string {
+	return strconv.FormatBool(v.Bool())
+}
+
+func encodeInt(v reflect.Value) string {
+	return strconv.FormatInt(int64(v.Int()), 10)
+}
+
+func encodeUint(v reflect.Value) string {
+	return strconv.FormatUint(uint64(v.Uint()), 10)
+}
+
+func encodeFloat(v reflect.Value, bits int) string {
+	return strconv.FormatFloat(v.Float(), 'f', 6, bits)
+}
+
+func encodeFloat32(v reflect.Value) string {
+	return encodeFloat(v, 32)
+}
+
+func encodeFloat64(v reflect.Value) string {
+	return encodeFloat(v, 64)
+}
+
+func encodeString(v reflect.Value) string {
+	return v.String()
+}

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

@@ -23,6 +23,8 @@ import (
 // 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
@@ -64,12 +66,24 @@ type Dialer struct {
 	// HandshakeTimeout specifies the duration for the handshake to complete.
 	HandshakeTimeout time.Duration
 
-	// Input and output buffer sizes. If the buffer size is zero, then a
-	// default value of 4096 is used.
+	// 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")
@@ -83,7 +97,6 @@ func parseURL(s string) (*url.URL, error) {
 	//
 	// ws-URI = "ws:" "//" host [ ":" port ] path [ "?" query ]
 	// wss-URI = "wss:" "//" host [ ":" port ] path [ "?" query ]
-
 	var u url.URL
 	switch {
 	case strings.HasPrefix(s, "ws://"):
@@ -193,6 +206,13 @@ func (d *Dialer) Dial(urlStr string, requestHeader http.Header) (*Conn, *http.Re
 		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
@@ -214,6 +234,7 @@ func (d *Dialer) Dial(urlStr string, requestHeader http.Header) (*Conn, *http.Re
 			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:
@@ -221,6 +242,10 @@ func (d *Dialer) Dial(urlStr string, requestHeader http.Header) (*Conn, *http.Re
 		}
 	}
 
+	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
@@ -298,12 +323,8 @@ func (d *Dialer) Dial(urlStr string, requestHeader http.Header) (*Conn, *http.Re
 	}
 
 	if u.Scheme == "https" {
-		cfg := d.TLSClientConfig
-		if cfg == nil {
-			cfg = &tls.Config{ServerName: hostNoPort}
-		} else if cfg.ServerName == "" {
-			shallowCopy := *cfg
-			cfg = &shallowCopy
+		cfg := cloneTLSConfig(d.TLSClientConfig)
+		if cfg.ServerName == "" {
 			cfg.ServerName = hostNoPort
 		}
 		tlsConn := tls.Client(netConn, cfg)
@@ -328,6 +349,13 @@ func (d *Dialer) Dial(urlStr string, requestHeader http.Header) (*Conn, *http.Re
 	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") ||
@@ -341,6 +369,20 @@ func (d *Dialer) Dial(urlStr string, requestHeader http.Header) (*Conn, *http.Re
 		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")
 

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()
+}

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,
+	}
+}

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
+}

vendor/github.com/gorilla/websocket/conn.go

@@ -13,15 +13,25 @@ import (
 	"math/rand"
 	"net"
 	"strconv"
+	"sync"
 	"time"
+	"unicode/utf8"
 )
 
 const (
+	// Frame header byte 0 bits from Section 5.2 of RFC 6455
+	finalBit = 1 << 7
+	rsv1Bit  = 1 << 6
+	rsv2Bit  = 1 << 5
+	rsv3Bit  = 1 << 4
+
+	// Frame header byte 1 bits from Section 5.2 of RFC 6455
+	maskBit = 1 << 7
+
 	maxFrameHeaderSize         = 2 + 8 + 4 // Fixed header + length + mask
 	maxControlFramePayloadSize = 125
-	finalBit                   = 1 << 7
-	maskBit                    = 1 << 7
-	writeWait                  = time.Second
+
+	writeWait = time.Second
 
 	defaultReadBufferSize  = 4096
 	defaultWriteBufferSize = 4096
@@ -43,6 +53,8 @@ const (
 	CloseMessageTooBig           = 1009
 	CloseMandatoryExtension      = 1010
 	CloseInternalServerErr       = 1011
+	CloseServiceRestart          = 1012
+	CloseTryAgainLater           = 1013
 	CloseTLSHandshake            = 1015
 )
 
@@ -169,6 +181,11 @@ var (
 	errInvalidControlFrame = errors.New("websocket: invalid control frame")
 )
 
+func newMaskKey() [4]byte {
+	n := rand.Uint32()
+	return [4]byte{byte(n), byte(n >> 8), byte(n >> 16), byte(n >> 24)}
+}
+
 func hideTempErr(err error) error {
 	if e, ok := err.(net.Error); ok && e.Temporary() {
 		err = &netError{msg: e.Error(), timeout: e.Timeout()}
@@ -184,74 +201,138 @@ func isData(frameType int) bool {
 	return frameType == TextMessage || frameType == BinaryMessage
 }
 
-func maskBytes(key [4]byte, pos int, b []byte) int {
-	for i := range b {
-		b[i] ^= key[pos&3]
-		pos++
-	}
-	return pos & 3
+var validReceivedCloseCodes = map[int]bool{
+	// see http://www.iana.org/assignments/websocket/websocket.xhtml#close-code-number
+
+	CloseNormalClosure:           true,
+	CloseGoingAway:               true,
+	CloseProtocolError:           true,
+	CloseUnsupportedData:         true,
+	CloseNoStatusReceived:        false,
+	CloseAbnormalClosure:         false,
+	CloseInvalidFramePayloadData: true,
+	ClosePolicyViolation:         true,
+	CloseMessageTooBig:           true,
+	CloseMandatoryExtension:      true,
+	CloseInternalServerErr:       true,
+	CloseServiceRestart:          true,
+	CloseTryAgainLater:           true,
+	CloseTLSHandshake:            false,
 }
 
-func newMaskKey() [4]byte {
-	n := rand.Uint32()
-	return [4]byte{byte(n), byte(n >> 8), byte(n >> 16), byte(n >> 24)}
+func isValidReceivedCloseCode(code int) bool {
+	return validReceivedCloseCodes[code] || (code >= 3000 && code <= 4999)
 }
 
-// Conn represents a WebSocket connection.
+// The Conn type represents a WebSocket connection.
 type Conn struct {
 	conn        net.Conn
 	isServer    bool
 	subprotocol string
 
 	// Write fields
-	mu        chan bool // used as mutex to protect write to conn and closeSent
-	closeSent bool      // true if close message was sent
+	mu            chan bool // used as mutex to protect write to conn
+	writeBuf      []byte    // frame is constructed in this buffer.
+	writeDeadline time.Time
+	writer        io.WriteCloser // the current writer returned to the application
+	isWriting     bool           // for best-effort concurrent write detection
 
-	// Message writer fields.
-	writeErr       error
-	writeBuf       []byte // frame is constructed in this buffer.
-	writePos       int    // end of data in writeBuf.
-	writeFrameType int    // type of the current frame.
-	writeSeq       int    // incremented to invalidate message writers.
-	writeDeadline  time.Time
-	isWriting      bool // for best-effort concurrent write detection
+	writeErrMu sync.Mutex
+	writeErr   error
+
+	enableWriteCompression bool
+	compressionLevel       int
+	newCompressionWriter   func(io.WriteCloser, int) io.WriteCloser
 
 	// Read fields
+	reader        io.ReadCloser // the current reader returned to the application
 	readErr       error
 	br            *bufio.Reader
 	readRemaining int64 // bytes remaining in current frame.
 	readFinal     bool  // true the current message has more frames.
-	readSeq       int   // incremented to invalidate message readers.
 	readLength    int64 // Message size.
 	readLimit     int64 // Maximum message size.
 	readMaskPos   int
 	readMaskKey   [4]byte
 	handlePong    func(string) error
 	handlePing    func(string) error
+	handleClose   func(int, string) error
 	readErrCount  int
+	messageReader *messageReader // the current low-level reader
+
+	readDecompress         bool // whether last read frame had RSV1 set
+	newDecompressionReader func(io.Reader) io.ReadCloser
 }
 
 func newConn(conn net.Conn, isServer bool, readBufferSize, writeBufferSize int) *Conn {
+	return newConnBRW(conn, isServer, readBufferSize, writeBufferSize, nil)
+}
+
+type writeHook struct {
+	p []byte
+}
+
+func (wh *writeHook) Write(p []byte) (int, error) {
+	wh.p = p
+	return len(p), nil
+}
+
+func newConnBRW(conn net.Conn, isServer bool, readBufferSize, writeBufferSize int, brw *bufio.ReadWriter) *Conn {
 	mu := make(chan bool, 1)
 	mu <- true
 
-	if readBufferSize == 0 {
-		readBufferSize = defaultReadBufferSize
+	var br *bufio.Reader
+	if readBufferSize == 0 && brw != nil && brw.Reader != nil {
+		// Reuse the supplied bufio.Reader if the buffer has a useful size.
+		// This code assumes that peek on a reader returns
+		// bufio.Reader.buf[:0].
+		brw.Reader.Reset(conn)
+		if p, err := brw.Reader.Peek(0); err == nil && cap(p) >= 256 {
+			br = brw.Reader
+		}
 	}
-	if writeBufferSize == 0 {
-		writeBufferSize = defaultWriteBufferSize
+	if br == nil {
+		if readBufferSize == 0 {
+			readBufferSize = defaultReadBufferSize
+		}
+		if readBufferSize < maxControlFramePayloadSize {
+			readBufferSize = maxControlFramePayloadSize
+		}
+		br = bufio.NewReaderSize(conn, readBufferSize)
+	}
+
+	var writeBuf []byte
+	if writeBufferSize == 0 && brw != nil && brw.Writer != nil {
+		// Use the bufio.Writer's buffer if the buffer has a useful size. This
+		// code assumes that bufio.Writer.buf[:1] is passed to the
+		// bufio.Writer's underlying writer.
+		var wh writeHook
+		brw.Writer.Reset(&wh)
+		brw.Writer.WriteByte(0)
+		brw.Flush()
+		if cap(wh.p) >= maxFrameHeaderSize+256 {
+			writeBuf = wh.p[:cap(wh.p)]
+		}
+	}
+
+	if writeBuf == nil {
+		if writeBufferSize == 0 {
+			writeBufferSize = defaultWriteBufferSize
+		}
+		writeBuf = make([]byte, writeBufferSize+maxFrameHeaderSize)
 	}
 
 	c := &Conn{
-		isServer:       isServer,
-		br:             bufio.NewReaderSize(conn, readBufferSize),
-		conn:           conn,
-		mu:             mu,
-		readFinal:      true,
-		writeBuf:       make([]byte, writeBufferSize+maxFrameHeaderSize),
-		writeFrameType: noFrame,
-		writePos:       maxFrameHeaderSize,
+		isServer:               isServer,
+		br:                     br,
+		conn:                   conn,
+		mu:                     mu,
+		readFinal:              true,
+		writeBuf:               writeBuf,
+		enableWriteCompression: true,
+		compressionLevel:       defaultCompressionLevel,
 	}
+	c.SetCloseHandler(nil)
 	c.SetPingHandler(nil)
 	c.SetPongHandler(nil)
 	return c
@@ -279,29 +360,40 @@ func (c *Conn) RemoteAddr() net.Addr {
 
 // Write methods
 
+func (c *Conn) writeFatal(err error) error {
+	err = hideTempErr(err)
+	c.writeErrMu.Lock()
+	if c.writeErr == nil {
+		c.writeErr = err
+	}
+	c.writeErrMu.Unlock()
+	return err
+}
+
 func (c *Conn) write(frameType int, deadline time.Time, bufs ...[]byte) error {
 	<-c.mu
 	defer func() { c.mu <- true }()
 
-	if c.closeSent {
-		return ErrCloseSent
-	} else if frameType == CloseMessage {
-		c.closeSent = true
+	c.writeErrMu.Lock()
+	err := c.writeErr
+	c.writeErrMu.Unlock()
+	if err != nil {
+		return err
 	}
 
 	c.conn.SetWriteDeadline(deadline)
 	for _, buf := range bufs {
 		if len(buf) > 0 {
-			n, err := c.conn.Write(buf)
-			if n != len(buf) {
-				// Close on partial write.
-				c.conn.Close()
-			}
+			_, err := c.conn.Write(buf)
 			if err != nil {
-				return err
+				return c.writeFatal(err)
 			}
 		}
 	}
+
+	if frameType == CloseMessage {
+		c.writeFatal(ErrCloseSent)
+	}
 	return nil
 }
 
@@ -350,60 +442,104 @@ func (c *Conn) WriteControl(messageType int, data []byte, deadline time.Time) er
 	}
 	defer func() { c.mu <- true }()
 
-	if c.closeSent {
-		return ErrCloseSent
-	} else if messageType == CloseMessage {
-		c.closeSent = true
+	c.writeErrMu.Lock()
+	err := c.writeErr
+	c.writeErrMu.Unlock()
+	if err != nil {
+		return err
 	}
 
 	c.conn.SetWriteDeadline(deadline)
-	n, err := c.conn.Write(buf)
-	if n != 0 && n != len(buf) {
-		c.conn.Close()
+	_, err = c.conn.Write(buf)
+	if err != nil {
+		return c.writeFatal(err)
 	}
-	return hideTempErr(err)
+	if messageType == CloseMessage {
+		c.writeFatal(ErrCloseSent)
+	}
+	return err
 }
 
-// NextWriter returns a writer for the next message to send.  The writer's
-// Close method flushes the complete message to the network.
+func (c *Conn) prepWrite(messageType int) error {
+	// Close previous writer if not already closed by the application. It's
+	// probably better to return an error in this situation, but we cannot
+	// change this without breaking existing applications.
+	if c.writer != nil {
+		c.writer.Close()
+		c.writer = nil
+	}
+
+	if !isControl(messageType) && !isData(messageType) {
+		return errBadWriteOpCode
+	}
+
+	c.writeErrMu.Lock()
+	err := c.writeErr
+	c.writeErrMu.Unlock()
+	return err
+}
+
+// NextWriter returns a writer for the next message to send. The writer's Close
+// method flushes the complete message to the network.
 //
 // There can be at most one open writer on a connection. NextWriter closes the
 // previous writer if the application has not already done so.
 func (c *Conn) NextWriter(messageType int) (io.WriteCloser, error) {
-	if c.writeErr != nil {
-		return nil, c.writeErr
+	if err := c.prepWrite(messageType); err != nil {
+		return nil, err
 	}
 
-	if c.writeFrameType != noFrame {
-		if err := c.flushFrame(true, nil); err != nil {
-			return nil, err
-		}
+	mw := &messageWriter{
+		c:         c,
+		frameType: messageType,
+		pos:       maxFrameHeaderSize,
 	}
-
-	if !isControl(messageType) && !isData(messageType) {
-		return nil, errBadWriteOpCode
+	c.writer = mw
+	if c.newCompressionWriter != nil && c.enableWriteCompression && isData(messageType) {
+		w := c.newCompressionWriter(c.writer, c.compressionLevel)
+		mw.compress = true
+		c.writer = w
 	}
-
-	c.writeFrameType = messageType
-	return messageWriter{c, c.writeSeq}, nil
+	return c.writer, nil
 }
 
-func (c *Conn) flushFrame(final bool, extra []byte) error {
-	length := c.writePos - maxFrameHeaderSize + len(extra)
+type messageWriter struct {
+	c         *Conn
+	compress  bool // whether next call to flushFrame should set RSV1
+	pos       int  // end of data in writeBuf.
+	frameType int  // type of the current frame.
+	err       error
+}
+
+func (w *messageWriter) fatal(err error) error {
+	if w.err != nil {
+		w.err = err
+		w.c.writer = nil
+	}
+	return err
+}
+
+// flushFrame writes buffered data and extra as a frame to the network. The
+// final argument indicates that this is the last frame in the message.
+func (w *messageWriter) flushFrame(final bool, extra []byte) error {
+	c := w.c
+	length := w.pos - maxFrameHeaderSize + len(extra)
 
 	// Check for invalid control frames.
-	if isControl(c.writeFrameType) &&
+	if isControl(w.frameType) &&
 		(!final || length > maxControlFramePayloadSize) {
-		c.writeSeq++
-		c.writeFrameType = noFrame
-		c.writePos = maxFrameHeaderSize
-		return errInvalidControlFrame
+		return w.fatal(errInvalidControlFrame)
 	}
 
-	b0 := byte(c.writeFrameType)
+	b0 := byte(w.frameType)
 	if final {
 		b0 |= finalBit
 	}
+	if w.compress {
+		b0 |= rsv1Bit
+	}
+	w.compress = false
+
 	b1 := byte(0)
 	if !c.isServer {
 		b1 |= maskBit
@@ -435,10 +571,9 @@ func (c *Conn) flushFrame(final bool, extra []byte) error {
 	if !c.isServer {
 		key := newMaskKey()
 		copy(c.writeBuf[maxFrameHeaderSize-4:], key[:])
-		maskBytes(key, 0, c.writeBuf[maxFrameHeaderSize:c.writePos])
+		maskBytes(key, 0, c.writeBuf[maxFrameHeaderSize:w.pos])
 		if len(extra) > 0 {
-			c.writeErr = errors.New("websocket: internal error, extra used in client mode")
-			return c.writeErr
+			return c.writeFatal(errors.New("websocket: internal error, extra used in client mode"))
 		}
 	}
 
@@ -451,46 +586,35 @@ func (c *Conn) flushFrame(final bool, extra []byte) error {
 	}
 	c.isWriting = true
 
-	c.writeErr = c.write(c.writeFrameType, c.writeDeadline, c.writeBuf[framePos:c.writePos], extra)
+	err := c.write(w.frameType, c.writeDeadline, c.writeBuf[framePos:w.pos], extra)
 
 	if !c.isWriting {
 		panic("concurrent write to websocket connection")
 	}
 	c.isWriting = false
 
-	// Setup for next frame.
-	c.writePos = maxFrameHeaderSize
-	c.writeFrameType = continuationFrame
+	if err != nil {
+		return w.fatal(err)
+	}
+
 	if final {
-		c.writeSeq++
-		c.writeFrameType = noFrame
+		c.writer = nil
+		return nil
 	}
-	return c.writeErr
-}
 
-type messageWriter struct {
-	c   *Conn
-	seq int
-}
-
-func (w messageWriter) err() error {
-	c := w.c
-	if c.writeSeq != w.seq {
-		return errWriteClosed
-	}
-	if c.writeErr != nil {
-		return c.writeErr
-	}
+	// Setup for next frame.
+	w.pos = maxFrameHeaderSize
+	w.frameType = continuationFrame
 	return nil
 }
 
-func (w messageWriter) ncopy(max int) (int, error) {
-	n := len(w.c.writeBuf) - w.c.writePos
+func (w *messageWriter) ncopy(max int) (int, error) {
+	n := len(w.c.writeBuf) - w.pos
 	if n <= 0 {
-		if err := w.c.flushFrame(false, nil); err != nil {
+		if err := w.flushFrame(false, nil); err != nil {
 			return 0, err
 		}
-		n = len(w.c.writeBuf) - w.c.writePos
+		n = len(w.c.writeBuf) - w.pos
 	}
 	if n > max {
 		n = max
@@ -498,14 +622,14 @@ func (w messageWriter) ncopy(max int) (int, error) {
 	return n, nil
 }
 
-func (w messageWriter) write(final bool, p []byte) (int, error) {
-	if err := w.err(); err != nil {
-		return 0, err
+func (w *messageWriter) Write(p []byte) (int, error) {
+	if w.err != nil {
+		return 0, w.err
 	}
 
 	if len(p) > 2*len(w.c.writeBuf) && w.c.isServer {
 		// Don't buffer large messages.
-		err := w.c.flushFrame(final, p)
+		err := w.flushFrame(false, p)
 		if err != nil {
 			return 0, err
 		}
@@ -518,20 +642,16 @@ func (w messageWriter) write(final bool, p []byte) (int, error) {
 		if err != nil {
 			return 0, err
 		}
-		copy(w.c.writeBuf[w.c.writePos:], p[:n])
-		w.c.writePos += n
+		copy(w.c.writeBuf[w.pos:], p[:n])
+		w.pos += n
 		p = p[n:]
 	}
 	return nn, nil
 }
 
-func (w messageWriter) Write(p []byte) (int, error) {
-	return w.write(false, p)
-}
-
-func (w messageWriter) WriteString(p string) (int, error) {
-	if err := w.err(); err != nil {
-		return 0, err
+func (w *messageWriter) WriteString(p string) (int, error) {
+	if w.err != nil {
+		return 0, w.err
 	}
 
 	nn := len(p)
@@ -540,27 +660,27 @@ func (w messageWriter) WriteString(p string) (int, error) {
 		if err != nil {
 			return 0, err
 		}
-		copy(w.c.writeBuf[w.c.writePos:], p[:n])
-		w.c.writePos += n
+		copy(w.c.writeBuf[w.pos:], p[:n])
+		w.pos += n
 		p = p[n:]
 	}
 	return nn, nil
 }
 
-func (w messageWriter) ReadFrom(r io.Reader) (nn int64, err error) {
-	if err := w.err(); err != nil {
-		return 0, err
+func (w *messageWriter) ReadFrom(r io.Reader) (nn int64, err error) {
+	if w.err != nil {
+		return 0, w.err
 	}
 	for {
-		if w.c.writePos == len(w.c.writeBuf) {
-			err = w.c.flushFrame(false, nil)
+		if w.pos == len(w.c.writeBuf) {
+			err = w.flushFrame(false, nil)
 			if err != nil {
 				break
 			}
 		}
 		var n int
-		n, err = r.Read(w.c.writeBuf[w.c.writePos:])
-		w.c.writePos += n
+		n, err = r.Read(w.c.writeBuf[w.pos:])
+		w.pos += n
 		nn += int64(n)
 		if err != nil {
 			if err == io.EOF {
@@ -572,30 +692,64 @@ func (w messageWriter) ReadFrom(r io.Reader) (nn int64, err error) {
 	return nn, err
 }
 
-func (w messageWriter) Close() error {
-	if err := w.err(); err != nil {
+func (w *messageWriter) Close() error {
+	if w.err != nil {
+		return w.err
+	}
+	if err := w.flushFrame(true, nil); err != nil {
 		return err
 	}
-	return w.c.flushFrame(true, nil)
+	w.err = errWriteClosed
+	return nil
+}
+
+// WritePreparedMessage writes prepared message into connection.
+func (c *Conn) WritePreparedMessage(pm *PreparedMessage) error {
+	frameType, frameData, err := pm.frame(prepareKey{
+		isServer:         c.isServer,
+		compress:         c.newCompressionWriter != nil && c.enableWriteCompression && isData(pm.messageType),
+		compressionLevel: c.compressionLevel,
+	})
+	if err != nil {
+		return err
+	}
+	if c.isWriting {
+		panic("concurrent write to websocket connection")
+	}
+	c.isWriting = true
+	err = c.write(frameType, c.writeDeadline, frameData, nil)
+	if !c.isWriting {
+		panic("concurrent write to websocket connection")
+	}
+	c.isWriting = false
+	return err
 }
 
 // WriteMessage is a helper method for getting a writer using NextWriter,
 // writing the message and closing the writer.
 func (c *Conn) WriteMessage(messageType int, data []byte) error {
-	wr, err := c.NextWriter(messageType)
+
+	if c.isServer && (c.newCompressionWriter == nil || !c.enableWriteCompression) {
+		// Fast path with no allocations and single frame.
+
+		if err := c.prepWrite(messageType); err != nil {
+			return err
+		}
+		mw := messageWriter{c: c, frameType: messageType, pos: maxFrameHeaderSize}
+		n := copy(c.writeBuf[mw.pos:], data)
+		mw.pos += n
+		data = data[n:]
+		return mw.flushFrame(true, data)
+	}
+
+	w, err := c.NextWriter(messageType)
 	if err != nil {
 		return err
 	}
-	w := wr.(messageWriter)
-	if _, err := w.write(true, data); err != nil {
+	if _, err = w.Write(data); err != nil {
 		return err
 	}
-	if c.writeSeq == w.seq {
-		if err := c.flushFrame(true, nil); err != nil {
-			return err
-		}
-	}
-	return nil
+	return w.Close()
 }
 
 // SetWriteDeadline sets the write deadline on the underlying network
@@ -609,22 +763,6 @@ func (c *Conn) SetWriteDeadline(t time.Time) error {
 
 // Read methods
 
-// readFull is like io.ReadFull except that io.EOF is never returned.
-func (c *Conn) readFull(p []byte) (err error) {
-	var n int
-	for n < len(p) && err == nil {
-		var nn int
-		nn, err = c.br.Read(p[n:])
-		n += nn
-	}
-	if n == len(p) {
-		err = nil
-	} else if err == io.EOF {
-		err = errUnexpectedEOF
-	}
-	return
-}
-
 func (c *Conn) advanceFrame() (int, error) {
 
 	// 1. Skip remainder of previous frame.
@@ -637,19 +775,24 @@ func (c *Conn) advanceFrame() (int, error) {
 
 	// 2. Read and parse first two bytes of frame header.
 
-	var b [8]byte
-	if err := c.readFull(b[:2]); err != nil {
+	p, err := c.read(2)
+	if err != nil {
 		return noFrame, err
 	}
 
-	final := b[0]&finalBit != 0
-	frameType := int(b[0] & 0xf)
-	reserved := int((b[0] >> 4) & 0x7)
-	mask := b[1]&maskBit != 0
-	c.readRemaining = int64(b[1] & 0x7f)
+	final := p[0]&finalBit != 0
+	frameType := int(p[0] & 0xf)
+	mask := p[1]&maskBit != 0
+	c.readRemaining = int64(p[1] & 0x7f)
 
-	if reserved != 0 {
-		return noFrame, c.handleProtocolError("unexpected reserved bits " + strconv.Itoa(reserved))
+	c.readDecompress = false
+	if c.newDecompressionReader != nil && (p[0]&rsv1Bit) != 0 {
+		c.readDecompress = true
+		p[0] &^= rsv1Bit
+	}
+
+	if rsv := p[0] & (rsv1Bit | rsv2Bit | rsv3Bit); rsv != 0 {
+		return noFrame, c.handleProtocolError("unexpected reserved bits 0x" + strconv.FormatInt(int64(rsv), 16))
 	}
 
 	switch frameType {
@@ -678,15 +821,17 @@ func (c *Conn) advanceFrame() (int, error) {
 
 	switch c.readRemaining {
 	case 126:
-		if err := c.readFull(b[:2]); err != nil {
+		p, err := c.read(2)
+		if err != nil {
 			return noFrame, err
 		}
-		c.readRemaining = int64(binary.BigEndian.Uint16(b[:2]))
+		c.readRemaining = int64(binary.BigEndian.Uint16(p))
 	case 127:
-		if err := c.readFull(b[:8]); err != nil {
+		p, err := c.read(8)
+		if err != nil {
 			return noFrame, err
 		}
-		c.readRemaining = int64(binary.BigEndian.Uint64(b[:8]))
+		c.readRemaining = int64(binary.BigEndian.Uint64(p))
 	}
 
 	// 4. Handle frame masking.
@@ -697,9 +842,11 @@ func (c *Conn) advanceFrame() (int, error) {
 
 	if mask {
 		c.readMaskPos = 0
-		if err := c.readFull(c.readMaskKey[:]); err != nil {
+		p, err := c.read(len(c.readMaskKey))
+		if err != nil {
 			return noFrame, err
 		}
+		copy(c.readMaskKey[:], p)
 	}
 
 	// 5. For text and binary messages, enforce read limit and return.
@@ -719,9 +866,9 @@ func (c *Conn) advanceFrame() (int, error) {
 
 	var payload []byte
 	if c.readRemaining > 0 {
-		payload = make([]byte, c.readRemaining)
+		payload, err = c.read(int(c.readRemaining))
 		c.readRemaining = 0
-		if err := c.readFull(payload); err != nil {
+		if err != nil {
 			return noFrame, err
 		}
 		if c.isServer {
@@ -741,15 +888,21 @@ func (c *Conn) advanceFrame() (int, error) {
 			return noFrame, err
 		}
 	case CloseMessage:
-		echoMessage := []byte{}
 		closeCode := CloseNoStatusReceived
 		closeText := ""
 		if len(payload) >= 2 {
-			echoMessage = payload[:2]
 			closeCode = int(binary.BigEndian.Uint16(payload))
+			if !isValidReceivedCloseCode(closeCode) {
+				return noFrame, c.handleProtocolError("invalid close code")
+			}
 			closeText = string(payload[2:])
+			if !utf8.ValidString(closeText) {
+				return noFrame, c.handleProtocolError("invalid utf8 payload in close frame")
+			}
+		}
+		if err := c.handleClose(closeCode, closeText); err != nil {
+			return noFrame, err
 		}
-		c.WriteControl(CloseMessage, echoMessage, time.Now().Add(writeWait))
 		return noFrame, &CloseError{Code: closeCode, Text: closeText}
 	}
 
@@ -772,8 +925,13 @@ func (c *Conn) handleProtocolError(message string) error {
 // permanent. Once this method returns a non-nil error, all subsequent calls to
 // this method return the same error.
 func (c *Conn) NextReader() (messageType int, r io.Reader, err error) {
+	// Close previous reader, only relevant for decompression.
+	if c.reader != nil {
+		c.reader.Close()
+		c.reader = nil
+	}
 
-	c.readSeq++
+	c.messageReader = nil
 	c.readLength = 0
 
 	for c.readErr == nil {
@@ -783,7 +941,12 @@ func (c *Conn) NextReader() (messageType int, r io.Reader, err error) {
 			break
 		}
 		if frameType == TextMessage || frameType == BinaryMessage {
-			return frameType, messageReader{c, c.readSeq}, nil
+			c.messageReader = &messageReader{c}
+			c.reader = c.messageReader
+			if c.readDecompress {
+				c.reader = c.newDecompressionReader(c.reader)
+			}
+			return frameType, c.reader, nil
 		}
 	}
 
@@ -798,53 +961,57 @@ func (c *Conn) NextReader() (messageType int, r io.Reader, err error) {
 	return noFrame, nil, c.readErr
 }
 
-type messageReader struct {
-	c   *Conn
-	seq int
-}
+type messageReader struct{ c *Conn }
 
-func (r messageReader) Read(b []byte) (int, error) {
-
-	if r.seq != r.c.readSeq {
+func (r *messageReader) Read(b []byte) (int, error) {
+	c := r.c
+	if c.messageReader != r {
 		return 0, io.EOF
 	}
 
-	for r.c.readErr == nil {
+	for c.readErr == nil {
 
-		if r.c.readRemaining > 0 {
-			if int64(len(b)) > r.c.readRemaining {
-				b = b[:r.c.readRemaining]
+		if c.readRemaining > 0 {
+			if int64(len(b)) > c.readRemaining {
+				b = b[:c.readRemaining]
 			}
-			n, err := r.c.br.Read(b)
-			r.c.readErr = hideTempErr(err)
-			if r.c.isServer {
-				r.c.readMaskPos = maskBytes(r.c.readMaskKey, r.c.readMaskPos, b[:n])
+			n, err := c.br.Read(b)
+			c.readErr = hideTempErr(err)
+			if c.isServer {
+				c.readMaskPos = maskBytes(c.readMaskKey, c.readMaskPos, b[:n])
 			}
-			r.c.readRemaining -= int64(n)
-			return n, r.c.readErr
+			c.readRemaining -= int64(n)
+			if c.readRemaining > 0 && c.readErr == io.EOF {
+				c.readErr = errUnexpectedEOF
+			}
+			return n, c.readErr
 		}
 
-		if r.c.readFinal {
-			r.c.readSeq++
+		if c.readFinal {
+			c.messageReader = nil
 			return 0, io.EOF
 		}
 
-		frameType, err := r.c.advanceFrame()
+		frameType, err := c.advanceFrame()
 		switch {
 		case err != nil:
-			r.c.readErr = hideTempErr(err)
+			c.readErr = hideTempErr(err)
 		case frameType == TextMessage || frameType == BinaryMessage:
-			r.c.readErr = errors.New("websocket: internal error, unexpected text or binary in Reader")
+			c.readErr = errors.New("websocket: internal error, unexpected text or binary in Reader")
 		}
 	}
 
-	err := r.c.readErr
-	if err == io.EOF && r.seq == r.c.readSeq {
+	err := c.readErr
+	if err == io.EOF && c.messageReader == r {
 		err = errUnexpectedEOF
 	}
 	return 0, err
 }
 
+func (r *messageReader) Close() error {
+	return nil
+}
+
 // ReadMessage is a helper method for getting a reader using NextReader and
 // reading from that reader to a buffer.
 func (c *Conn) ReadMessage() (messageType int, p []byte, err error) {
@@ -872,9 +1039,49 @@ func (c *Conn) SetReadLimit(limit int64) {
 	c.readLimit = limit
 }
 
+// CloseHandler returns the current close handler
+func (c *Conn) CloseHandler() func(code int, text string) error {
+	return c.handleClose
+}
+
+// SetCloseHandler sets the handler for close messages received from the peer.
+// The code argument to h is the received close code or CloseNoStatusReceived
+// if the close message is empty. The default close handler sends a close frame
+// back to the peer.
+//
+// The application must read the connection to process close messages as
+// described in the section on Control Frames above.
+//
+// The connection read methods return a CloseError when a close frame is
+// received. Most applications should handle close messages as part of their
+// normal error handling. Applications should only set a close handler when the
+// application must perform some action before sending a close frame back to
+// the peer.
+func (c *Conn) SetCloseHandler(h func(code int, text string) error) {
+	if h == nil {
+		h = func(code int, text string) error {
+			message := []byte{}
+			if code != CloseNoStatusReceived {
+				message = FormatCloseMessage(code, "")
+			}
+			c.WriteControl(CloseMessage, message, time.Now().Add(writeWait))
+			return nil
+		}
+	}
+	c.handleClose = h
+}
+
+// PingHandler returns the current ping handler
+func (c *Conn) PingHandler() func(appData string) error {
+	return c.handlePing
+}
+
 // SetPingHandler sets the handler for ping messages received from the peer.
 // The appData argument to h is the PING frame application data. The default
 // ping handler sends a pong to the peer.
+//
+// The application must read the connection to process ping messages as
+// described in the section on Control Frames above.
 func (c *Conn) SetPingHandler(h func(appData string) error) {
 	if h == nil {
 		h = func(message string) error {
@@ -890,9 +1097,17 @@ func (c *Conn) SetPingHandler(h func(appData string) error) {
 	c.handlePing = h
 }
 
+// PongHandler returns the current pong handler
+func (c *Conn) PongHandler() func(appData string) error {
+	return c.handlePong
+}
+
 // SetPongHandler sets the handler for pong messages received from the peer.
 // The appData argument to h is the PONG frame application data. The default
 // pong handler does nothing.
+//
+// The application must read the connection to process ping messages as
+// described in the section on Control Frames above.
 func (c *Conn) SetPongHandler(h func(appData string) error) {
 	if h == nil {
 		h = func(string) error { return nil }
@@ -906,6 +1121,25 @@ func (c *Conn) UnderlyingConn() net.Conn {
 	return c.conn
 }
 
+// EnableWriteCompression enables and disables write compression of
+// subsequent text and binary messages. This function is a noop if
+// compression was not negotiated with the peer.
+func (c *Conn) EnableWriteCompression(enable bool) {
+	c.enableWriteCompression = enable
+}
+
+// SetCompressionLevel sets the flate compression level for subsequent text and
+// binary messages. This function is a noop if compression was not negotiated
+// with the peer. See the compress/flate package for a description of
+// compression levels.
+func (c *Conn) SetCompressionLevel(level int) error {
+	if !isValidCompressionLevel(level) {
+		return errors.New("websocket: invalid compression level")
+	}
+	c.compressionLevel = level
+	return nil
+}
+
 // FormatCloseMessage formats closeCode and text as a WebSocket close message.
 func FormatCloseMessage(closeCode int, text string) []byte {
 	buf := make([]byte, 2+len(text))

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
+}

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
+}

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

@@ -118,9 +118,10 @@
 //
 // Applications are responsible for ensuring that no more than one goroutine
 // calls the write methods (NextWriter, SetWriteDeadline, WriteMessage,
-// WriteJSON) concurrently and that no more than one goroutine calls the read
-// methods (NextReader, SetReadDeadline, ReadMessage, ReadJSON, SetPongHandler,
-// SetPingHandler) concurrently.
+// 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.
@@ -149,4 +150,31 @@
 // 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

vendor/github.com/gorilla/websocket/examples/autobahn/server.go

@@ -8,17 +8,19 @@ package main
 import (
 	"errors"
 	"flag"
-	"github.com/gorilla/websocket"
 	"io"
 	"log"
 	"net/http"
 	"time"
 	"unicode/utf8"
+
+	"github.com/gorilla/websocket"
 )
 
 var upgrader = websocket.Upgrader{
-	ReadBufferSize:  4096,
-	WriteBufferSize: 4096,
+	ReadBufferSize:    4096,
+	WriteBufferSize:   4096,
+	EnableCompression: true,
 	CheckOrigin: func(r *http.Request) bool {
 		return true
 	},
@@ -83,7 +85,7 @@ func echoCopyFull(w http.ResponseWriter, r *http.Request) {
 
 // echoReadAll echoes messages from the client by reading the entire message
 // with ioutil.ReadAll.
-func echoReadAll(w http.ResponseWriter, r *http.Request, writeMessage bool) {
+func echoReadAll(w http.ResponseWriter, r *http.Request, writeMessage, writePrepared bool) {
 	conn, err := upgrader.Upgrade(w, r, nil)
 	if err != nil {
 		log.Println("Upgrade:", err)
@@ -107,9 +109,21 @@ func echoReadAll(w http.ResponseWriter, r *http.Request, writeMessage bool) {
 			}
 		}
 		if writeMessage {
-			err = conn.WriteMessage(mt, b)
-			if err != nil {
-				log.Println("WriteMessage:", err)
+			if !writePrepared {
+				err = conn.WriteMessage(mt, b)
+				if err != nil {
+					log.Println("WriteMessage:", err)
+				}
+			} else {
+				pm, err := websocket.NewPreparedMessage(mt, b)
+				if err != nil {
+					log.Println("NewPreparedMessage:", err)
+					return
+				}
+				err = conn.WritePreparedMessage(pm)
+				if err != nil {
+					log.Println("WritePreparedMessage:", err)
+				}
 			}
 		} else {
 			w, err := conn.NextWriter(mt)
@@ -130,11 +144,15 @@ func echoReadAll(w http.ResponseWriter, r *http.Request, writeMessage bool) {
 }
 
 func echoReadAllWriter(w http.ResponseWriter, r *http.Request) {
-	echoReadAll(w, r, false)
+	echoReadAll(w, r, false, false)
 }
 
 func echoReadAllWriteMessage(w http.ResponseWriter, r *http.Request) {
-	echoReadAll(w, r, true)
+	echoReadAll(w, r, true, false)
+}
+
+func echoReadAllWritePreparedMessage(w http.ResponseWriter, r *http.Request) {
+	echoReadAll(w, r, true, true)
 }
 
 func serveHome(w http.ResponseWriter, r *http.Request) {
@@ -159,6 +177,7 @@ func main() {
 	http.HandleFunc("/f", echoCopyFull)
 	http.HandleFunc("/r", echoReadAllWriter)
 	http.HandleFunc("/m", echoReadAllWriteMessage)
+	http.HandleFunc("/p", echoReadAllWritePreparedMessage)
 	err := http.ListenAndServe(*addr, nil)
 	if err != nil {
 		log.Fatal("ListenAndServe: ", err)

vendor/github.com/gorilla/websocket/examples/chat/client.go

@@ -0,0 +1,134 @@
+// 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 main
+
+import (
+	"bytes"
+	"log"
+	"net/http"
+	"time"
+
+	"github.com/gorilla/websocket"
+)
+
+const (
+	// Time allowed to write a message to the peer.
+	writeWait = 10 * time.Second
+
+	// Time allowed to read the next pong message from the peer.
+	pongWait = 60 * time.Second
+
+	// Send pings to peer with this period. Must be less than pongWait.
+	pingPeriod = (pongWait * 9) / 10
+
+	// Maximum message size allowed from peer.
+	maxMessageSize = 512
+)
+
+var (
+	newline = []byte{'\n'}
+	space   = []byte{' '}
+)
+
+var upgrader = websocket.Upgrader{
+	ReadBufferSize:  1024,
+	WriteBufferSize: 1024,
+}
+
+// Client is a middleman between the websocket connection and the hub.
+type Client struct {
+	hub *Hub
+
+	// The websocket connection.
+	conn *websocket.Conn
+
+	// Buffered channel of outbound messages.
+	send chan []byte
+}
+
+// readPump pumps messages from the websocket connection to the hub.
+//
+// The application runs readPump in a per-connection goroutine. The application
+// ensures that there is at most one reader on a connection by executing all
+// reads from this goroutine.
+func (c *Client) readPump() {
+	defer func() {
+		c.hub.unregister <- c
+		c.conn.Close()
+	}()
+	c.conn.SetReadLimit(maxMessageSize)
+	c.conn.SetReadDeadline(time.Now().Add(pongWait))
+	c.conn.SetPongHandler(func(string) error { c.conn.SetReadDeadline(time.Now().Add(pongWait)); return nil })
+	for {
+		_, message, err := c.conn.ReadMessage()
+		if err != nil {
+			if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway) {
+				log.Printf("error: %v", err)
+			}
+			break
+		}
+		message = bytes.TrimSpace(bytes.Replace(message, newline, space, -1))
+		c.hub.broadcast <- message
+	}
+}
+
+// writePump pumps messages from the hub to the websocket connection.
+//
+// A goroutine running writePump is started for each connection. The
+// application ensures that there is at most one writer to a connection by
+// executing all writes from this goroutine.
+func (c *Client) writePump() {
+	ticker := time.NewTicker(pingPeriod)
+	defer func() {
+		ticker.Stop()
+		c.conn.Close()
+	}()
+	for {
+		select {
+		case message, ok := <-c.send:
+			c.conn.SetWriteDeadline(time.Now().Add(writeWait))
+			if !ok {
+				// The hub closed the channel.
+				c.conn.WriteMessage(websocket.CloseMessage, []byte{})
+				return
+			}
+
+			w, err := c.conn.NextWriter(websocket.TextMessage)
+			if err != nil {
+				return
+			}
+			w.Write(message)
+
+			// Add queued chat messages to the current websocket message.
+			n := len(c.send)
+			for i := 0; i < n; i++ {
+				w.Write(newline)
+				w.Write(<-c.send)
+			}
+
+			if err := w.Close(); err != nil {
+				return
+			}
+		case <-ticker.C:
+			c.conn.SetWriteDeadline(time.Now().Add(writeWait))
+			if err := c.conn.WriteMessage(websocket.PingMessage, []byte{}); err != nil {
+				return
+			}
+		}
+	}
+}
+
+// serveWs handles websocket requests from the peer.
+func serveWs(hub *Hub, w http.ResponseWriter, r *http.Request) {
+	conn, err := upgrader.Upgrade(w, r, nil)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	client := &Client{hub: hub, conn: conn, send: make(chan []byte, 256)}
+	client.hub.register <- client
+	go client.writePump()
+	client.readPump()
+}

vendor/github.com/gorilla/websocket/examples/chat/conn.go

@@ -1,105 +0,0 @@
-// 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 main
-
-import (
-	"github.com/gorilla/websocket"
-	"log"
-	"net/http"
-	"time"
-)
-
-const (
-	// Time allowed to write a message to the peer.
-	writeWait = 10 * time.Second
-
-	// Time allowed to read the next pong message from the peer.
-	pongWait = 60 * time.Second
-
-	// Send pings to peer with this period. Must be less than pongWait.
-	pingPeriod = (pongWait * 9) / 10
-
-	// Maximum message size allowed from peer.
-	maxMessageSize = 512
-)
-
-var upgrader = websocket.Upgrader{
-	ReadBufferSize:  1024,
-	WriteBufferSize: 1024,
-}
-
-// connection is an middleman between the websocket connection and the hub.
-type connection struct {
-	// The websocket connection.
-	ws *websocket.Conn
-
-	// Buffered channel of outbound messages.
-	send chan []byte
-}
-
-// readPump pumps messages from the websocket connection to the hub.
-func (c *connection) readPump() {
-	defer func() {
-		h.unregister <- c
-		c.ws.Close()
-	}()
-	c.ws.SetReadLimit(maxMessageSize)
-	c.ws.SetReadDeadline(time.Now().Add(pongWait))
-	c.ws.SetPongHandler(func(string) error { c.ws.SetReadDeadline(time.Now().Add(pongWait)); return nil })
-	for {
-		_, message, err := c.ws.ReadMessage()
-		if err != nil {
-			if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway) {
-				log.Printf("error: %v", err)
-			}
-			break
-		}
-		h.broadcast <- message
-	}
-}
-
-// write writes a message with the given message type and payload.
-func (c *connection) write(mt int, payload []byte) error {
-	c.ws.SetWriteDeadline(time.Now().Add(writeWait))
-	return c.ws.WriteMessage(mt, payload)
-}
-
-// writePump pumps messages from the hub to the websocket connection.
-func (c *connection) writePump() {
-	ticker := time.NewTicker(pingPeriod)
-	defer func() {
-		ticker.Stop()
-		c.ws.Close()
-	}()
-	for {
-		select {
-		case message, ok := <-c.send:
-			if !ok {
-				c.write(websocket.CloseMessage, []byte{})
-				return
-			}
-			if err := c.write(websocket.TextMessage, message); err != nil {
-				return
-			}
-		case <-ticker.C:
-			if err := c.write(websocket.PingMessage, []byte{}); err != nil {
-				return
-			}
-		}
-	}
-}
-
-// serveWs handles websocket requests from the peer.
-func serveWs(w http.ResponseWriter, r *http.Request) {
-	ws, err := upgrader.Upgrade(w, r, nil)
-	if err != nil {
-		log.Println(err)
-		return
-	}
-	c := &connection{send: make(chan []byte, 256), ws: ws}
-	h.register <- c
-	go c.writePump()
-	c.readPump()
-}

vendor/github.com/gorilla/websocket/examples/chat/hub.go

@@ -4,46 +4,48 @@
 
 package main
 
-// hub maintains the set of active connections and broadcasts messages to the
-// connections.
-type hub struct {
-	// Registered connections.
-	connections map[*connection]bool
+// hub maintains the set of active clients and broadcasts messages to the
+// clients.
+type Hub struct {
+	// Registered clients.
+	clients map[*Client]bool
 
-	// Inbound messages from the connections.
+	// Inbound messages from the clients.
 	broadcast chan []byte
 
-	// Register requests from the connections.
-	register chan *connection
+	// Register requests from the clients.
+	register chan *Client
 
-	// Unregister requests from connections.
-	unregister chan *connection
+	// Unregister requests from clients.
+	unregister chan *Client
 }
 
-var h = hub{
-	broadcast:   make(chan []byte),
-	register:    make(chan *connection),
-	unregister:  make(chan *connection),
-	connections: make(map[*connection]bool),
+func newHub() *Hub {
+	return &Hub{
+		broadcast:  make(chan []byte),
+		register:   make(chan *Client),
+		unregister: make(chan *Client),
+		clients:    make(map[*Client]bool),
+	}
 }
 
-func (h *hub) run() {
+func (h *Hub) run() {
 	for {
 		select {
-		case c := <-h.register:
-			h.connections[c] = true
-		case c := <-h.unregister:
-			if _, ok := h.connections[c]; ok {
-				delete(h.connections, c)
-				close(c.send)
+		case client := <-h.register:
+			h.clients[client] = true
+		case client := <-h.unregister:
+			if _, ok := h.clients[client]; ok {
+				delete(h.clients, client)
+				close(client.send)
 			}
-		case m := <-h.broadcast:
-			for c := range h.connections {
+		case message := <-h.broadcast:
+			for client := range h.clients {
 				select {
-				case c.send <- m:
+				case client.send <- message:
 				default:
-					close(c.send)
-					delete(h.connections, c)
+					close(client.send)
+					delete(h.clients, client)
 				}
 			}
 		}

vendor/github.com/gorilla/websocket/examples/chat/main.go

@@ -8,13 +8,12 @@ import (
 	"flag"
 	"log"
 	"net/http"
-	"text/template"
 )
 
 var addr = flag.String("addr", ":8080", "http service address")
-var homeTempl = template.Must(template.ParseFiles("home.html"))
 
 func serveHome(w http.ResponseWriter, r *http.Request) {
+	log.Println(r.URL)
 	if r.URL.Path != "/" {
 		http.Error(w, "Not found", 404)
 		return
@@ -23,15 +22,17 @@ func serveHome(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, "Method not allowed", 405)
 		return
 	}
-	w.Header().Set("Content-Type", "text/html; charset=utf-8")
-	homeTempl.Execute(w, r.Host)
+	http.ServeFile(w, r, "home.html")
 }
 
 func main() {
 	flag.Parse()
-	go h.run()
+	hub := newHub()
+	go hub.run()
 	http.HandleFunc("/", serveHome)
-	http.HandleFunc("/ws", serveWs)
+	http.HandleFunc("/ws", func(w http.ResponseWriter, r *http.Request) {
+		serveWs(hub, w, r)
+	})
 	err := http.ListenAndServe(*addr, nil)
 	if err != nil {
 		log.Fatal("ListenAndServe: ", err)

vendor/github.com/gorilla/websocket/examples/command/main.go

@@ -12,16 +12,14 @@ import (
 	"net/http"
 	"os"
 	"os/exec"
-	"text/template"
 	"time"
 
 	"github.com/gorilla/websocket"
 )
 
 var (
-	addr      = flag.String("addr", "127.0.0.1:8080", "http service address")
-	cmdPath   string
-	homeTempl = template.Must(template.ParseFiles("home.html"))
+	addr    = flag.String("addr", "127.0.0.1:8080", "http service address")
+	cmdPath string
 )
 
 const (
@@ -36,6 +34,9 @@ const (
 
 	// Send pings to peer with this period. Must be less than pongWait.
 	pingPeriod = (pongWait * 9) / 10
+
+	// Time to wait before force close on connection.
+	closeGracePeriod = 10 * time.Second
 )
 
 func pumpStdin(ws *websocket.Conn, w io.Writer) {
@@ -57,19 +58,24 @@ func pumpStdin(ws *websocket.Conn, w io.Writer) {
 
 func pumpStdout(ws *websocket.Conn, r io.Reader, done chan struct{}) {
 	defer func() {
-		ws.Close()
-		close(done)
 	}()
 	s := bufio.NewScanner(r)
 	for s.Scan() {
 		ws.SetWriteDeadline(time.Now().Add(writeWait))
 		if err := ws.WriteMessage(websocket.TextMessage, s.Bytes()); err != nil {
+			ws.Close()
 			break
 		}
 	}
 	if s.Err() != nil {
 		log.Println("scan:", s.Err())
 	}
+	close(done)
+
+	ws.SetWriteDeadline(time.Now().Add(writeWait))
+	ws.WriteMessage(websocket.CloseMessage, websocket.FormatCloseMessage(websocket.CloseNormalClosure, ""))
+	time.Sleep(closeGracePeriod)
+	ws.Close()
 }
 
 func ping(ws *websocket.Conn, done chan struct{}) {
@@ -168,8 +174,7 @@ func serveHome(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, "Method not allowed", 405)
 		return
 	}
-	w.Header().Set("Content-Type", "text/html; charset=utf-8")
-	homeTempl.Execute(w, r.Host)
+	http.ServeFile(w, r, "home.html")
 }
 
 func main() {

vendor/github.com/gorilla/websocket/examples/filewatch/main.go

@@ -6,12 +6,12 @@ package main
 
 import (
 	"flag"
+	"html/template"
 	"io/ioutil"
 	"log"
 	"net/http"
 	"os"
 	"strconv"
-	"text/template"
 	"time"
 
 	"github.com/gorilla/websocket"
@@ -120,7 +120,7 @@ func serveWs(w http.ResponseWriter, r *http.Request) {
 	}
 
 	var lastMod time.Time
-	if n, err := strconv.ParseInt(r.FormValue("lastMod"), 16, 64); err != nil {
+	if n, err := strconv.ParseInt(r.FormValue("lastMod"), 16, 64); err == nil {
 		lastMod = time.Unix(0, n)
 	}
 

vendor/github.com/gorilla/websocket/mask.go

@@ -0,0 +1,55 @@
+// 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 !appengine
+
+package websocket
+
+import "unsafe"
+
+const wordSize = int(unsafe.Sizeof(uintptr(0)))
+
+func maskBytes(key [4]byte, pos int, b []byte) int {
+
+	// Mask one byte at a time for small buffers.
+	if len(b) < 2*wordSize {
+		for i := range b {
+			b[i] ^= key[pos&3]
+			pos++
+		}
+		return pos & 3
+	}
+
+	// Mask one byte at a time to word boundary.
+	if n := int(uintptr(unsafe.Pointer(&b[0]))) % wordSize; n != 0 {
+		n = wordSize - n
+		for i := range b[:n] {
+			b[i] ^= key[pos&3]
+			pos++
+		}
+		b = b[n:]
+	}
+
+	// Create aligned word size key.
+	var k [wordSize]byte
+	for i := range k {
+		k[i] = key[(pos+i)&3]
+	}
+	kw := *(*uintptr)(unsafe.Pointer(&k))
+
+	// Mask one word at a time.
+	n := (len(b) / wordSize) * wordSize
+	for i := 0; i < n; i += wordSize {
+		*(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&b[0])) + uintptr(i))) ^= kw
+	}
+
+	// Mask one byte at a time for remaining bytes.
+	b = b[n:]
+	for i := range b {
+		b[i] ^= key[pos&3]
+		pos++
+	}
+
+	return pos & 3
+}

vendor/github.com/gorilla/websocket/mask_safe.go

@@ -0,0 +1,15 @@
+// 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 appengine
+
+package websocket
+
+func maskBytes(key [4]byte, pos int, b []byte) int {
+	for i := range b {
+		b[i] ^= key[pos&3]
+		pos++
+	}
+	return pos & 3
+}

vendor/github.com/gorilla/websocket/prepared.go

@@ -0,0 +1,103 @@
+// 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 (
+	"bytes"
+	"net"
+	"sync"
+	"time"
+)
+
+// PreparedMessage caches on the wire representations of a message payload.
+// Use PreparedMessage to efficiently send a message payload to multiple
+// connections. PreparedMessage is especially useful when compression is used
+// because the CPU and memory expensive compression operation can be executed
+// once for a given set of compression options.
+type PreparedMessage struct {
+	messageType int
+	data        []byte
+	err         error
+	mu          sync.Mutex
+	frames      map[prepareKey]*preparedFrame
+}
+
+// prepareKey defines a unique set of options to cache prepared frames in PreparedMessage.
+type prepareKey struct {
+	isServer         bool
+	compress         bool
+	compressionLevel int
+}
+
+// preparedFrame contains data in wire representation.
+type preparedFrame struct {
+	once sync.Once
+	data []byte
+}
+
+// NewPreparedMessage returns an initialized PreparedMessage. You can then send
+// it to connection using WritePreparedMessage method. Valid wire
+// representation will be calculated lazily only once for a set of current
+// connection options.
+func NewPreparedMessage(messageType int, data []byte) (*PreparedMessage, error) {
+	pm := &PreparedMessage{
+		messageType: messageType,
+		frames:      make(map[prepareKey]*preparedFrame),
+		data:        data,
+	}
+
+	// Prepare a plain server frame.
+	_, frameData, err := pm.frame(prepareKey{isServer: true, compress: false})
+	if err != nil {
+		return nil, err
+	}
+
+	// To protect against caller modifying the data argument, remember the data
+	// copied to the plain server frame.
+	pm.data = frameData[len(frameData)-len(data):]
+	return pm, nil
+}
+
+func (pm *PreparedMessage) frame(key prepareKey) (int, []byte, error) {
+	pm.mu.Lock()
+	frame, ok := pm.frames[key]
+	if !ok {
+		frame = &preparedFrame{}
+		pm.frames[key] = frame
+	}
+	pm.mu.Unlock()
+
+	var err error
+	frame.once.Do(func() {
+		// Prepare a frame using a 'fake' connection.
+		// TODO: Refactor code in conn.go to allow more direct construction of
+		// the frame.
+		mu := make(chan bool, 1)
+		mu <- true
+		var nc prepareConn
+		c := &Conn{
+			conn:                   &nc,
+			mu:                     mu,
+			isServer:               key.isServer,
+			compressionLevel:       key.compressionLevel,
+			enableWriteCompression: true,
+			writeBuf:               make([]byte, defaultWriteBufferSize+maxFrameHeaderSize),
+		}
+		if key.compress {
+			c.newCompressionWriter = compressNoContextTakeover
+		}
+		err = c.WriteMessage(pm.messageType, pm.data)
+		frame.data = nc.buf.Bytes()
+	})
+	return pm.messageType, frame.data, err
+}
+
+type prepareConn struct {
+	buf bytes.Buffer
+	net.Conn
+}
+
+func (pc *prepareConn) Write(p []byte) (int, error)        { return pc.buf.Write(p) }
+func (pc *prepareConn) SetWriteDeadline(t time.Time) error { return nil }

vendor/github.com/gorilla/websocket/server.go

@@ -28,8 +28,9 @@ type Upgrader struct {
 	HandshakeTimeout time.Duration
 
 	// ReadBufferSize and WriteBufferSize specify I/O buffer sizes. If a buffer
-	// size is zero, then a default value of 4096 is used. The I/O buffer sizes
-	// do not limit the size of the messages that can be sent or received.
+	// size is zero, then buffers allocated by the HTTP server are 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 server's supported protocols in order of
@@ -46,6 +47,12 @@ type Upgrader struct {
 	// CheckOrigin is nil, the host in the Origin header must not be set or
 	// must match the host of the request.
 	CheckOrigin func(r *http.Request) bool
+
+	// EnableCompression specify if the server 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
 }
 
 func (u *Upgrader) returnError(w http.ResponseWriter, r *http.Request, status int, reason string) (*Conn, error) {
@@ -53,6 +60,7 @@ func (u *Upgrader) returnError(w http.ResponseWriter, r *http.Request, status in
 	if u.Error != nil {
 		u.Error(w, r, status, err)
 	} else {
+		w.Header().Set("Sec-Websocket-Version", "13")
 		http.Error(w, http.StatusText(status), status)
 	}
 	return nil, err
@@ -97,18 +105,23 @@ func (u *Upgrader) selectSubprotocol(r *http.Request, responseHeader http.Header
 // response.
 func (u *Upgrader) Upgrade(w http.ResponseWriter, r *http.Request, responseHeader http.Header) (*Conn, error) {
 	if r.Method != "GET" {
-		return u.returnError(w, r, http.StatusMethodNotAllowed, "websocket: method not GET")
+		return u.returnError(w, r, http.StatusMethodNotAllowed, "websocket: not a websocket handshake: request method is not GET")
 	}
-	if values := r.Header["Sec-Websocket-Version"]; len(values) == 0 || values[0] != "13" {
-		return u.returnError(w, r, http.StatusBadRequest, "websocket: version != 13")
+
+	if _, ok := responseHeader["Sec-Websocket-Extensions"]; ok {
+		return u.returnError(w, r, http.StatusInternalServerError, "websocket: application specific 'Sec-Websocket-Extensions' headers are unsupported")
 	}
 
 	if !tokenListContainsValue(r.Header, "Connection", "upgrade") {
-		return u.returnError(w, r, http.StatusBadRequest, "websocket: could not find connection header with token 'upgrade'")
+		return u.returnError(w, r, http.StatusBadRequest, "websocket: not a websocket handshake: 'upgrade' token not found in 'Connection' header")
 	}
 
 	if !tokenListContainsValue(r.Header, "Upgrade", "websocket") {
-		return u.returnError(w, r, http.StatusBadRequest, "websocket: could not find upgrade header with token 'websocket'")
+		return u.returnError(w, r, http.StatusBadRequest, "websocket: not a websocket handshake: 'websocket' token not found in 'Upgrade' header")
+	}
+
+	if !tokenListContainsValue(r.Header, "Sec-Websocket-Version", "13") {
+		return u.returnError(w, r, http.StatusBadRequest, "websocket: unsupported version: 13 not found in 'Sec-Websocket-Version' header")
 	}
 
 	checkOrigin := u.CheckOrigin
@@ -116,19 +129,30 @@ func (u *Upgrader) Upgrade(w http.ResponseWriter, r *http.Request, responseHeade
 		checkOrigin = checkSameOrigin
 	}
 	if !checkOrigin(r) {
-		return u.returnError(w, r, http.StatusForbidden, "websocket: origin not allowed")
+		return u.returnError(w, r, http.StatusForbidden, "websocket: 'Origin' header value not allowed")
 	}
 
 	challengeKey := r.Header.Get("Sec-Websocket-Key")
 	if challengeKey == "" {
-		return u.returnError(w, r, http.StatusBadRequest, "websocket: key missing or blank")
+		return u.returnError(w, r, http.StatusBadRequest, "websocket: not a websocket handshake: `Sec-Websocket-Key' header is missing or blank")
 	}
 
 	subprotocol := u.selectSubprotocol(r, responseHeader)
 
+	// Negotiate PMCE
+	var compress bool
+	if u.EnableCompression {
+		for _, ext := range parseExtensions(r.Header) {
+			if ext[""] != "permessage-deflate" {
+				continue
+			}
+			compress = true
+			break
+		}
+	}
+
 	var (
 		netConn net.Conn
-		br      *bufio.Reader
 		err     error
 	)
 
@@ -136,21 +160,25 @@ func (u *Upgrader) Upgrade(w http.ResponseWriter, r *http.Request, responseHeade
 	if !ok {
 		return u.returnError(w, r, http.StatusInternalServerError, "websocket: response does not implement http.Hijacker")
 	}
-	var rw *bufio.ReadWriter
-	netConn, rw, err = h.Hijack()
+	var brw *bufio.ReadWriter
+	netConn, brw, err = h.Hijack()
 	if err != nil {
 		return u.returnError(w, r, http.StatusInternalServerError, err.Error())
 	}
-	br = rw.Reader
 
-	if br.Buffered() > 0 {
+	if brw.Reader.Buffered() > 0 {
 		netConn.Close()
 		return nil, errors.New("websocket: client sent data before handshake is complete")
 	}
 
-	c := newConn(netConn, true, u.ReadBufferSize, u.WriteBufferSize)
+	c := newConnBRW(netConn, true, u.ReadBufferSize, u.WriteBufferSize, brw)
 	c.subprotocol = subprotocol
 
+	if compress {
+		c.newCompressionWriter = compressNoContextTakeover
+		c.newDecompressionReader = decompressNoContextTakeover
+	}
+
 	p := c.writeBuf[:0]
 	p = append(p, "HTTP/1.1 101 Switching Protocols\r\nUpgrade: websocket\r\nConnection: Upgrade\r\nSec-WebSocket-Accept: "...)
 	p = append(p, computeAcceptKey(challengeKey)...)
@@ -160,6 +188,9 @@ func (u *Upgrader) Upgrade(w http.ResponseWriter, r *http.Request, responseHeade
 		p = append(p, c.subprotocol...)
 		p = append(p, "\r\n"...)
 	}
+	if compress {
+		p = append(p, "Sec-Websocket-Extensions: permessage-deflate; server_no_context_takeover; client_no_context_takeover\r\n"...)
+	}
 	for k, vs := range responseHeader {
 		if k == "Sec-Websocket-Protocol" {
 			continue

vendor/github.com/gorilla/websocket/util.go

@@ -13,19 +13,6 @@ import (
 	"strings"
 )
 
-// tokenListContainsValue returns true if the 1#token header with the given
-// name contains token.
-func tokenListContainsValue(header http.Header, name string, value string) bool {
-	for _, v := range header[name] {
-		for _, s := range strings.Split(v, ",") {
-			if strings.EqualFold(value, strings.TrimSpace(s)) {
-				return true
-			}
-		}
-	}
-	return false
-}
-
 var keyGUID = []byte("258EAFA5-E914-47DA-95CA-C5AB0DC85B11")
 
 func computeAcceptKey(challengeKey string) string {
@@ -42,3 +29,186 @@ func generateChallengeKey() (string, error) {
 	}
 	return base64.StdEncoding.EncodeToString(p), nil
 }
+
+// Octet types from RFC 2616.
+var octetTypes [256]byte
+
+const (
+	isTokenOctet = 1 << iota
+	isSpaceOctet
+)
+
+func init() {
+	// From RFC 2616
+	//
+	// OCTET      = <any 8-bit sequence of data>
+	// CHAR       = <any US-ASCII character (octets 0 - 127)>
+	// CTL        = <any US-ASCII control character (octets 0 - 31) and DEL (127)>
+	// CR         = <US-ASCII CR, carriage return (13)>
+	// LF         = <US-ASCII LF, linefeed (10)>
+	// SP         = <US-ASCII SP, space (32)>
+	// HT         = <US-ASCII HT, horizontal-tab (9)>
+	// <">        = <US-ASCII double-quote mark (34)>
+	// CRLF       = CR LF
+	// LWS        = [CRLF] 1*( SP | HT )
+	// TEXT       = <any OCTET except CTLs, but including LWS>
+	// separators = "(" | ")" | "<" | ">" | "@" | "," | ";" | ":" | "\" | <">
+	//              | "/" | "[" | "]" | "?" | "=" | "{" | "}" | SP | HT
+	// token      = 1*<any CHAR except CTLs or separators>
+	// qdtext     = <any TEXT except <">>
+
+	for c := 0; c < 256; c++ {
+		var t byte
+		isCtl := c <= 31 || c == 127
+		isChar := 0 <= c && c <= 127
+		isSeparator := strings.IndexRune(" \t\"(),/:;<=>?@[]\\{}", rune(c)) >= 0
+		if strings.IndexRune(" \t\r\n", rune(c)) >= 0 {
+			t |= isSpaceOctet
+		}
+		if isChar && !isCtl && !isSeparator {
+			t |= isTokenOctet
+		}
+		octetTypes[c] = t
+	}
+}
+
+func skipSpace(s string) (rest string) {
+	i := 0
+	for ; i < len(s); i++ {
+		if octetTypes[s[i]]&isSpaceOctet == 0 {
+			break
+		}
+	}
+	return s[i:]
+}
+
+func nextToken(s string) (token, rest string) {
+	i := 0
+	for ; i < len(s); i++ {
+		if octetTypes[s[i]]&isTokenOctet == 0 {
+			break
+		}
+	}
+	return s[:i], s[i:]
+}
+
+func nextTokenOrQuoted(s string) (value string, rest string) {
+	if !strings.HasPrefix(s, "\"") {
+		return nextToken(s)
+	}
+	s = s[1:]
+	for i := 0; i < len(s); i++ {
+		switch s[i] {
+		case '"':
+			return s[:i], s[i+1:]
+		case '\\':
+			p := make([]byte, len(s)-1)
+			j := copy(p, s[:i])
+			escape := true
+			for i = i + 1; i < len(s); i++ {
+				b := s[i]
+				switch {
+				case escape:
+					escape = false
+					p[j] = b
+					j += 1
+				case b == '\\':
+					escape = true
+				case b == '"':
+					return string(p[:j]), s[i+1:]
+				default:
+					p[j] = b
+					j += 1
+				}
+			}
+			return "", ""
+		}
+	}
+	return "", ""
+}
+
+// tokenListContainsValue returns true if the 1#token header with the given
+// name contains token.
+func tokenListContainsValue(header http.Header, name string, value string) bool {
+headers:
+	for _, s := range header[name] {
+		for {
+			var t string
+			t, s = nextToken(skipSpace(s))
+			if t == "" {
+				continue headers
+			}
+			s = skipSpace(s)
+			if s != "" && s[0] != ',' {
+				continue headers
+			}
+			if strings.EqualFold(t, value) {
+				return true
+			}
+			if s == "" {
+				continue headers
+			}
+			s = s[1:]
+		}
+	}
+	return false
+}
+
+// parseExtensiosn parses WebSocket extensions from a header.
+func parseExtensions(header http.Header) []map[string]string {
+
+	// From RFC 6455:
+	//
+	//  Sec-WebSocket-Extensions = extension-list
+	//  extension-list = 1#extension
+	//  extension = extension-token *( ";" extension-param )
+	//  extension-token = registered-token
+	//  registered-token = token
+	//  extension-param = token [ "=" (token | quoted-string) ]
+	//     ;When using the quoted-string syntax variant, the value
+	//     ;after quoted-string unescaping MUST conform to the
+	//     ;'token' ABNF.
+
+	var result []map[string]string
+headers:
+	for _, s := range header["Sec-Websocket-Extensions"] {
+		for {
+			var t string
+			t, s = nextToken(skipSpace(s))
+			if t == "" {
+				continue headers
+			}
+			ext := map[string]string{"": t}
+			for {
+				s = skipSpace(s)
+				if !strings.HasPrefix(s, ";") {
+					break
+				}
+				var k string
+				k, s = nextToken(skipSpace(s[1:]))
+				if k == "" {
+					continue headers
+				}
+				s = skipSpace(s)
+				var v string
+				if strings.HasPrefix(s, "=") {
+					v, s = nextTokenOrQuoted(skipSpace(s[1:]))
+					s = skipSpace(s)
+				}
+				if s != "" && s[0] != ',' && s[0] != ';' {
+					continue headers
+				}
+				ext[k] = v
+			}
+			if s != "" && s[0] != ',' {
+				continue headers
+			}
+			result = append(result, ext)
+			if s == "" {
+				continue headers
+			}
+			s = s[1:]
+		}
+	}
+	return result
+}

vendor/github.com/jpillora/backoff/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2017 Jaime Pillora
+
+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.

vendor/github.com/jpillora/backoff/backoff.go

@@ -1,3 +1,4 @@
+// Package backoff provides an exponential-backoff implementation.
 package backoff
 
 import (
@@ -6,64 +7,82 @@ import (
 	"time"
 )
 
-//Backoff is a time.Duration counter. It starts at Min.
-//After every call to Duration() it is  multiplied by Factor.
-//It is capped at Max. It returns to Min on every call to Reset().
-//Used in conjunction with the time package.
+// Backoff is a time.Duration counter, starting at Min. After every call to
+// the Duration method the current timing is multiplied by Factor, but it
+// never exceeds Max.
 //
-// Backoff is not threadsafe, but the ForAttempt method can be
-// used concurrently if non-zero values for Factor, Max, and Min
-// are set on the Backoff shared among threads.
+// Backoff is not generally concurrent-safe, but the ForAttempt method can
+// be used concurrently.
 type Backoff struct {
 	//Factor is the multiplying factor for each increment step
-	attempts, Factor float64
+	attempt, Factor float64
 	//Jitter eases contention by randomizing backoff steps
 	Jitter bool
 	//Min and Max are the minimum and maximum values of the counter
 	Min, Max time.Duration
 }
 
-//Returns the current value of the counter and then
-//multiplies it Factor
+// Duration returns the duration for the current attempt before incrementing
+// the attempt counter. See ForAttempt.
 func (b *Backoff) Duration() time.Duration {
-	d := b.ForAttempt(b.attempts)
-	b.attempts++
+	d := b.ForAttempt(b.attempt)
+	b.attempt++
 	return d
 }
 
+const maxInt64 = float64(math.MaxInt64 - 512)
+
 // ForAttempt returns the duration for a specific attempt. This is useful if
 // you have a large number of independent Backoffs, but don't want use
 // unnecessary memory storing the Backoff parameters per Backoff. The first
 // attempt should be 0.
 //
-// ForAttempt is threadsafe iff non-zero values for Factor, Max, and Min
-// are set before any calls to ForAttempt are made.
+// ForAttempt is concurrent-safe.
 func (b *Backoff) ForAttempt(attempt float64) time.Duration {
-	//Zero-values are nonsensical, so we use
-	//them to apply defaults
-	if b.Min == 0 {
-		b.Min = 100 * time.Millisecond
+	// Zero-values are nonsensical, so we use
+	// them to apply defaults
+	min := b.Min
+	if min <= 0 {
+		min = 100 * time.Millisecond
 	}
-	if b.Max == 0 {
-		b.Max = 10 * time.Second
+	max := b.Max
+	if max <= 0 {
+		max = 10 * time.Second
 	}
-	if b.Factor == 0 {
-		b.Factor = 2
+	if min >= max {
+		// short-circuit
+		return max
+	}
+	factor := b.Factor
+	if factor <= 0 {
+		factor = 2
 	}
 	//calculate this duration
-	dur := float64(b.Min) * math.Pow(b.Factor, attempt)
-	if b.Jitter == true {
-		dur = rand.Float64()*(dur-float64(b.Min)) + float64(b.Min)
+	minf := float64(min)
+	durf := minf * math.Pow(factor, attempt)
+	if b.Jitter {
+		durf = rand.Float64()*(durf-minf) + minf
 	}
-	//cap!
-	if dur > float64(b.Max) {
-		return b.Max
+	//ensure float64 wont overflow int64
+	if durf > maxInt64 {
+		return max
 	}
-	//return as a time.Duration
-	return time.Duration(dur)
+	dur := time.Duration(durf)
+	//keep within bounds
+	if dur < min {
+		return min
+	} else if dur > max {
+		return max
+	}
+	return dur
 }
 
-//Resets the current value of the counter back to Min
+// Reset restarts the current attempt counter at zero.
 func (b *Backoff) Reset() {
-	b.attempts = 0
+	b.attempt = 0
+}
+
+// Attempt returns the current attempt counter value.
+func (b *Backoff) Attempt() float64 {
+	return b.attempt
 }

vendor/github.com/mattermost/platform/einterfaces/cluster.go

@@ -12,10 +12,15 @@ type ClusterInterface interface {
 	StopInterNodeCommunication()
 	GetClusterInfos() []*model.ClusterInfo
 	GetClusterStats() ([]*model.ClusterStats, *model.AppError)
-	RemoveAllSessionsForUserId(userId string)
+	ClearSessionCacheForUser(userId string)
 	InvalidateCacheForUser(userId string)
 	InvalidateCacheForChannel(channelId string)
+	InvalidateCacheForChannelByName(teamId, name string)
+	InvalidateCacheForChannelMembers(channelId string)
+	InvalidateCacheForChannelMembersNotifyProps(channelId string)
 	InvalidateCacheForChannelPosts(channelId string)
+	InvalidateCacheForWebhook(webhookId string)
+	InvalidateCacheForReactions(postId string)
 	Publish(event *model.WebSocketEvent)
 	UpdateStatus(status *model.Status)
 	GetLogs() ([]string, *model.AppError)

vendor/github.com/mattermost/platform/einterfaces/metrics.go

@@ -8,6 +8,7 @@ type MetricsInterface interface {
 	StopServer()
 
 	IncrementPostCreate()
+	IncrementWebhookPost()
 	IncrementPostSentEmail()
 	IncrementPostSentPush()
 	IncrementPostBroadcast()
@@ -17,6 +18,9 @@ type MetricsInterface interface {
 	IncrementHttpError()
 	ObserveHttpRequestDuration(elapsed float64)
 
+	IncrementClusterRequest()
+	ObserveClusterRequestDuration(elapsed float64)
+
 	IncrementLogin()
 	IncrementLoginFail()
 
@@ -25,6 +29,10 @@ type MetricsInterface interface {
 
 	IncrementMemCacheHitCounter(cacheName string)
 	IncrementMemCacheMissCounter(cacheName string)
+	IncrementMemCacheMissCounterSession()
+	IncrementMemCacheHitCounterSession()
+
+	IncrementWebsocketEvent(eventType string)
 
 	AddMemCacheHitCounter(cacheName string, amount float64)
 	AddMemCacheMissCounter(cacheName string, amount float64)

vendor/github.com/mattermost/platform/einterfaces/saml.go

@@ -10,7 +10,7 @@ import (
 type SamlInterface interface {
 	ConfigureSP() *model.AppError
 	BuildRequest(relayState string) (*model.SamlAuthRequest, *model.AppError)
-	DoLogin(encodedXML string, relayState map[string]string) (*model.User, *model.AppError)
+	DoLogin(encodedXML string, relayState map[string]string, siteURL string) (*model.User, *model.AppError)
 	GetMetadata() (string, *model.AppError)
 }
 

vendor/github.com/mattermost/platform/model/authorization.go

@@ -27,7 +27,10 @@ var PERMISSION_MANAGE_PUBLIC_CHANNEL_MEMBERS *Permission
 var PERMISSION_MANAGE_PRIVATE_CHANNEL_MEMBERS *Permission
 var PERMISSION_ASSIGN_SYSTEM_ADMIN_ROLE *Permission
 var PERMISSION_MANAGE_ROLES *Permission
+var PERMISSION_MANAGE_TEAM_ROLES *Permission
+var PERMISSION_MANAGE_CHANNEL_ROLES *Permission
 var PERMISSION_CREATE_DIRECT_CHANNEL *Permission
+var PERMISSION_CREATE_GROUP_CHANNEL *Permission
 var PERMISSION_MANAGE_PUBLIC_CHANNEL_PROPERTIES *Permission
 var PERMISSION_MANAGE_PRIVATE_CHANNEL_PROPERTIES *Permission
 var PERMISSION_LIST_TEAM_CHANNELS *Permission
@@ -46,9 +49,13 @@ var PERMISSION_MANAGE_SYSTEM_WIDE_OAUTH *Permission
 var PERMISSION_CREATE_POST *Permission
 var PERMISSION_EDIT_POST *Permission
 var PERMISSION_EDIT_OTHERS_POSTS *Permission
+var PERMISSION_DELETE_POST *Permission
+var PERMISSION_DELETE_OTHERS_POSTS *Permission
 var PERMISSION_REMOVE_USER_FROM_TEAM *Permission
+var PERMISSION_CREATE_TEAM *Permission
 var PERMISSION_MANAGE_TEAM *Permission
 var PERMISSION_IMPORT_TEAM *Permission
+var PERMISSION_VIEW_TEAM *Permission
 
 // General permission that encompases all system admin functions
 // in the future this could be broken up to allow access to some
@@ -123,6 +130,16 @@ func InitalizePermissions() {
 		"authentication.permissions.manage_roles.name",
 		"authentication.permissions.manage_roles.description",
 	}
+	PERMISSION_MANAGE_TEAM_ROLES = &Permission{
+		"manage_team_roles",
+		"authentication.permissions.manage_team_roles.name",
+		"authentication.permissions.manage_team_roles.description",
+	}
+	PERMISSION_MANAGE_CHANNEL_ROLES = &Permission{
+		"manage_channel_roles",
+		"authentication.permissions.manage_channel_roles.name",
+		"authentication.permissions.manage_channel_roles.description",
+	}
 	PERMISSION_MANAGE_SYSTEM = &Permission{
 		"manage_system",
 		"authentication.permissions.manage_system.name",
@@ -133,6 +150,11 @@ func InitalizePermissions() {
 		"authentication.permissions.create_direct_channel.name",
 		"authentication.permissions.create_direct_channel.description",
 	}
+	PERMISSION_CREATE_GROUP_CHANNEL = &Permission{
+		"create_group_channel",
+		"authentication.permissions.create_group_channel.name",
+		"authentication.permissions.create_group_channel.description",
+	}
 	PERMISSION_MANAGE_PUBLIC_CHANNEL_PROPERTIES = &Permission{
 		"manage__publicchannel_properties",
 		"authentication.permissions.manage_public_channel_properties.name",
@@ -223,11 +245,26 @@ func InitalizePermissions() {
 		"authentication.permissions.edit_others_posts.name",
 		"authentication.permissions.edit_others_posts.description",
 	}
+	PERMISSION_DELETE_POST = &Permission{
+		"delete_post",
+		"authentication.permissions.delete_post.name",
+		"authentication.permissions.delete_post.description",
+	}
+	PERMISSION_DELETE_OTHERS_POSTS = &Permission{
+		"delete_others_posts",
+		"authentication.permissions.delete_others_posts.name",
+		"authentication.permissions.delete_others_posts.description",
+	}
 	PERMISSION_REMOVE_USER_FROM_TEAM = &Permission{
 		"remove_user_from_team",
 		"authentication.permissions.remove_user_from_team.name",
 		"authentication.permissions.remove_user_from_team.description",
 	}
+	PERMISSION_CREATE_TEAM = &Permission{
+		"create_team",
+		"authentication.permissions.create_team.name",
+		"authentication.permissions.create_team.description",
+	}
 	PERMISSION_MANAGE_TEAM = &Permission{
 		"manage_team",
 		"authentication.permissions.manage_team.name",
@@ -238,6 +275,11 @@ func InitalizePermissions() {
 		"authentication.permissions.import_team.name",
 		"authentication.permissions.import_team.description",
 	}
+	PERMISSION_VIEW_TEAM = &Permission{
+		"view_team",
+		"authentication.permissions.view_team.name",
+		"authentication.permissions.view_team.description",
+	}
 }
 
 func InitalizeRoles() {
@@ -264,7 +306,9 @@ func InitalizeRoles() {
 		"channel_admin",
 		"authentication.roles.channel_admin.name",
 		"authentication.roles.channel_admin.description",
-		[]string{},
+		[]string{
+			PERMISSION_MANAGE_CHANNEL_ROLES.Id,
+		},
 	}
 	BuiltInRoles[ROLE_CHANNEL_ADMIN.Id] = ROLE_CHANNEL_ADMIN
 	ROLE_CHANNEL_GUEST = &Role{
@@ -282,6 +326,7 @@ func InitalizeRoles() {
 		[]string{
 			PERMISSION_LIST_TEAM_CHANNELS.Id,
 			PERMISSION_JOIN_PUBLIC_CHANNELS.Id,
+			PERMISSION_VIEW_TEAM.Id,
 		},
 	}
 	BuiltInRoles[ROLE_TEAM_USER.Id] = ROLE_TEAM_USER
@@ -295,7 +340,8 @@ func InitalizeRoles() {
 			PERMISSION_REMOVE_USER_FROM_TEAM.Id,
 			PERMISSION_MANAGE_TEAM.Id,
 			PERMISSION_IMPORT_TEAM.Id,
-			PERMISSION_MANAGE_ROLES.Id,
+			PERMISSION_MANAGE_TEAM_ROLES.Id,
+			PERMISSION_MANAGE_CHANNEL_ROLES.Id,
 			PERMISSION_MANAGE_OTHERS_WEBHOOKS.Id,
 			PERMISSION_MANAGE_SLASH_COMMANDS.Id,
 			PERMISSION_MANAGE_OTHERS_SLASH_COMMANDS.Id,
@@ -310,6 +356,7 @@ func InitalizeRoles() {
 		"authentication.roles.global_user.description",
 		[]string{
 			PERMISSION_CREATE_DIRECT_CHANNEL.Id,
+			PERMISSION_CREATE_GROUP_CHANNEL.Id,
 			PERMISSION_PERMANENT_DELETE_USER.Id,
 			PERMISSION_MANAGE_OAUTH.Id,
 		},
@@ -329,6 +376,7 @@ func InitalizeRoles() {
 						[]string{
 							PERMISSION_ASSIGN_SYSTEM_ADMIN_ROLE.Id,
 							PERMISSION_MANAGE_SYSTEM.Id,
+							PERMISSION_MANAGE_ROLES.Id,
 							PERMISSION_MANAGE_PUBLIC_CHANNEL_PROPERTIES.Id,
 							PERMISSION_DELETE_PUBLIC_CHANNEL.Id,
 							PERMISSION_CREATE_PUBLIC_CHANNEL.Id,
@@ -340,6 +388,9 @@ func InitalizeRoles() {
 							PERMISSION_EDIT_OTHER_USERS.Id,
 							PERMISSION_MANAGE_OAUTH.Id,
 							PERMISSION_INVITE_USER.Id,
+							PERMISSION_DELETE_POST.Id,
+							PERMISSION_DELETE_OTHERS_POSTS.Id,
+							PERMISSION_CREATE_TEAM.Id,
 						},
 						ROLE_TEAM_USER.Permissions...,
 					),

vendor/github.com/mattermost/platform/model/channel.go

@@ -4,8 +4,12 @@
 package model
 
 import (
+	"crypto/sha1"
+	"encoding/hex"
 	"encoding/json"
 	"io"
+	"sort"
+	"strings"
 	"unicode/utf8"
 )
 
@@ -13,11 +17,16 @@ const (
 	CHANNEL_OPEN                   = "O"
 	CHANNEL_PRIVATE                = "P"
 	CHANNEL_DIRECT                 = "D"
+	CHANNEL_GROUP                  = "G"
+	CHANNEL_GROUP_MAX_USERS        = 8
+	CHANNEL_GROUP_MIN_USERS        = 3
 	DEFAULT_CHANNEL                = "town-square"
 	CHANNEL_DISPLAY_NAME_MAX_RUNES = 64
+	CHANNEL_NAME_MIN_LENGTH        = 2
 	CHANNEL_NAME_MAX_LENGTH        = 64
 	CHANNEL_HEADER_MAX_RUNES       = 1024
 	CHANNEL_PURPOSE_MAX_RUNES      = 250
+	CHANNEL_CACHE_SIZE             = 25000
 )
 
 type Channel struct {
@@ -83,15 +92,11 @@ func (o *Channel) IsValid() *AppError {
 		return NewLocAppError("Channel.IsValid", "model.channel.is_valid.display_name.app_error", nil, "id="+o.Id)
 	}
 
-	if len(o.Name) > CHANNEL_NAME_MAX_LENGTH {
-		return NewLocAppError("Channel.IsValid", "model.channel.is_valid.name.app_error", nil, "id="+o.Id)
-	}
-
 	if !IsValidChannelIdentifier(o.Name) {
 		return NewLocAppError("Channel.IsValid", "model.channel.is_valid.2_or_more.app_error", nil, "id="+o.Id)
 	}
 
-	if !(o.Type == CHANNEL_OPEN || o.Type == CHANNEL_PRIVATE || o.Type == CHANNEL_DIRECT) {
+	if !(o.Type == CHANNEL_OPEN || o.Type == CHANNEL_PRIVATE || o.Type == CHANNEL_DIRECT || o.Type == CHANNEL_GROUP) {
 		return NewLocAppError("Channel.IsValid", "model.channel.is_valid.type.app_error", nil, "id="+o.Id)
 	}
 
@@ -128,6 +133,10 @@ func (o *Channel) ExtraUpdated() {
 	o.ExtraUpdateAt = GetMillis()
 }
 
+func (o *Channel) IsGroupOrDirect() bool {
+	return o.Type == CHANNEL_DIRECT || o.Type == CHANNEL_GROUP
+}
+
 func GetDMNameFromIds(userId1, userId2 string) string {
 	if userId1 > userId2 {
 		return userId2 + "__" + userId1
@@ -135,3 +144,31 @@ func GetDMNameFromIds(userId1, userId2 string) string {
 		return userId1 + "__" + userId2
 	}
 }
+
+func GetGroupDisplayNameFromUsers(users []*User, truncate bool) string {
+	usernames := make([]string, len(users))
+	for index, user := range users {
+		usernames[index] = user.Username
+	}
+
+	sort.Strings(usernames)
+
+	name := strings.Join(usernames, ", ")
+
+	if truncate && len(name) > CHANNEL_NAME_MAX_LENGTH {
+		name = name[:CHANNEL_NAME_MAX_LENGTH]
+	}
+
+	return name
+}
+
+func GetGroupNameFromUserIds(userIds []string) string {
+	sort.Strings(userIds)
+
+	h := sha1.New()
+	for _, id := range userIds {
+		io.WriteString(h, id)
+	}
+
+	return hex.EncodeToString(h.Sum(nil))
+}

vendor/github.com/mattermost/platform/model/channel_member.go

@@ -88,18 +88,32 @@ func (o *ChannelMember) IsValid() *AppError {
 		return NewLocAppError("ChannelMember.IsValid", "model.channel_member.is_valid.user_id.app_error", nil, "")
 	}
 
-	notifyLevel := o.NotifyProps["desktop"]
+	notifyLevel := o.NotifyProps[DESKTOP_NOTIFY_PROP]
 	if len(notifyLevel) > 20 || !IsChannelNotifyLevelValid(notifyLevel) {
 		return NewLocAppError("ChannelMember.IsValid", "model.channel_member.is_valid.notify_level.app_error",
 			nil, "notify_level="+notifyLevel)
 	}
 
-	markUnreadLevel := o.NotifyProps["mark_unread"]
+	markUnreadLevel := o.NotifyProps[MARK_UNREAD_NOTIFY_PROP]
 	if len(markUnreadLevel) > 20 || !IsChannelMarkUnreadLevelValid(markUnreadLevel) {
 		return NewLocAppError("ChannelMember.IsValid", "model.channel_member.is_valid.unread_level.app_error",
 			nil, "mark_unread_level="+markUnreadLevel)
 	}
 
+	if pushLevel, ok := o.NotifyProps[PUSH_NOTIFY_PROP]; ok {
+		if len(pushLevel) > 20 || !IsChannelNotifyLevelValid(pushLevel) {
+			return NewLocAppError("ChannelMember.IsValid", "model.channel_member.is_valid.push_level.app_error",
+				nil, "push_notification_level="+pushLevel)
+		}
+	}
+
+	if sendEmail, ok := o.NotifyProps[EMAIL_NOTIFY_PROP]; ok {
+		if len(sendEmail) > 20 || !IsSendEmailValid(sendEmail) {
+			return NewLocAppError("ChannelMember.IsValid", "model.channel_member.is_valid.email_value.app_error",
+				nil, "push_notification_level="+sendEmail)
+		}
+	}
+
 	return nil
 }
 
@@ -126,9 +140,15 @@ func IsChannelMarkUnreadLevelValid(markUnreadLevel string) bool {
 	return markUnreadLevel == CHANNEL_MARK_UNREAD_ALL || markUnreadLevel == CHANNEL_MARK_UNREAD_MENTION
 }
 
+func IsSendEmailValid(sendEmail string) bool {
+	return sendEmail == CHANNEL_NOTIFY_DEFAULT || sendEmail == "true" || sendEmail == "false"
+}
+
 func GetDefaultChannelNotifyProps() StringMap {
 	return StringMap{
-		"desktop":     CHANNEL_NOTIFY_DEFAULT,
-		"mark_unread": CHANNEL_MARK_UNREAD_ALL,
+		DESKTOP_NOTIFY_PROP:     CHANNEL_NOTIFY_DEFAULT,
+		MARK_UNREAD_NOTIFY_PROP: CHANNEL_MARK_UNREAD_ALL,
+		PUSH_NOTIFY_PROP:        CHANNEL_NOTIFY_DEFAULT,
+		EMAIL_NOTIFY_PROP:       CHANNEL_NOTIFY_DEFAULT,
 	}
 }

vendor/github.com/mattermost/platform/model/client.go

@@ -35,12 +35,14 @@ const (
 	STATUS                    = "status"
 	STATUS_OK                 = "OK"
 	STATUS_FAIL               = "FAIL"
+	STATUS_REMOVE             = "REMOVE"
 
 	CLIENT_DIR = "webapp/dist"
 
 	API_URL_SUFFIX_V1 = "/api/v1"
 	API_URL_SUFFIX_V3 = "/api/v3"
-	API_URL_SUFFIX    = API_URL_SUFFIX_V3
+	API_URL_SUFFIX_V4 = "/api/v4"
+	API_URL_SUFFIX    = API_URL_SUFFIX_V4
 )
 
 type Result struct {
@@ -71,7 +73,7 @@ type Client struct {
 // NewClient constructs a new client with convienence methods for talking to
 // the server.
 func NewClient(url string) *Client {
-	return &Client{url, url + API_URL_SUFFIX, &http.Client{}, "", "", "", "", "", ""}
+	return &Client{url, url + API_URL_SUFFIX_V3, &http.Client{}, "", "", "", "", "", ""}
 }
 
 func closeBody(r *http.Response) {
@@ -782,7 +784,7 @@ func (c *Client) GetSessions(id string) (*Result, *AppError) {
 }
 
 func (c *Client) EmailToOAuth(m map[string]string) (*Result, *AppError) {
-	if r, err := c.DoApiPost("/users/claim/email_to_sso", MapToJson(m)); err != nil {
+	if r, err := c.DoApiPost("/users/claim/email_to_oauth", MapToJson(m)); err != nil {
 		return nil, err
 	} else {
 		defer closeBody(r)
@@ -1119,6 +1121,16 @@ func (c *Client) CreateDirectChannel(userId string) (*Result, *AppError) {
 	}
 }
 
+func (c *Client) CreateGroupChannel(userIds []string) (*Result, *AppError) {
+	if r, err := c.DoApiPost(c.GetTeamRoute()+"/channels/create_group", ArrayToJson(userIds)); err != nil {
+		return nil, err
+	} else {
+		defer closeBody(r)
+		return &Result{r.Header.Get(HEADER_REQUEST_ID),
+			r.Header.Get(HEADER_ETAG_SERVER), ChannelFromJson(r.Body)}, nil
+	}
+}
+
 func (c *Client) UpdateChannel(channel *Channel) (*Result, *AppError) {
 	if r, err := c.DoApiPost(c.GetTeamRoute()+"/channels/update", channel.ToJson()); err != nil {
 		return nil, err
@@ -1471,6 +1483,21 @@ func (c *Client) GetPostById(postId string, etag string) (*PostList, *ResponseMe
 	}
 }
 
+// GetPermalink returns a post list, based on the provided channel and post ID.
+func (c *Client) GetPermalink(channelId string, postId string, etag string) (*PostList, *ResponseMetadata) {
+	if r, err := c.DoApiGet(c.GetTeamRoute()+fmt.Sprintf("/pltmp/%v", postId), "", etag); err != nil {
+		return nil, &ResponseMetadata{StatusCode: r.StatusCode, Error: err}
+	} else {
+		defer closeBody(r)
+		return PostListFromJson(r.Body),
+			&ResponseMetadata{
+				StatusCode: r.StatusCode,
+				RequestId:  r.Header.Get(HEADER_REQUEST_ID),
+				Etag:       r.Header.Get(HEADER_ETAG_SERVER),
+			}
+	}
+}
+
 func (c *Client) DeletePost(channelId string, postId string) (*Result, *AppError) {
 	if r, err := c.DoApiPost(c.GetChannelRoute(channelId)+fmt.Sprintf("/posts/%v/delete", postId), ""); err != nil {
 		return nil, err
@@ -1991,6 +2018,16 @@ func (c *Client) CreateIncomingWebhook(hook *IncomingWebhook) (*Result, *AppErro
 	}
 }
 
+func (c *Client) UpdateIncomingWebhook(hook *IncomingWebhook) (*Result, *AppError) {
+	if r, err := c.DoApiPost(c.GetTeamRoute()+"/hooks/incoming/update", hook.ToJson()); err != nil {
+		return nil, err
+	} else {
+		defer closeBody(r)
+		return &Result{r.Header.Get(HEADER_REQUEST_ID),
+			r.Header.Get(HEADER_ETAG_SERVER), IncomingWebhookFromJson(r.Body)}, nil
+	}
+}
+
 func (c *Client) PostToWebhook(id, payload string) (*Result, *AppError) {
 	if r, err := c.DoPost("/hooks/"+id, payload, "application/x-www-form-urlencoded"); err != nil {
 		return nil, err
@@ -2082,6 +2119,16 @@ func (c *Client) CreateOutgoingWebhook(hook *OutgoingWebhook) (*Result, *AppErro
 	}
 }
 
+func (c *Client) UpdateOutgoingWebhook(hook *OutgoingWebhook) (*Result, *AppError) {
+	if r, err := c.DoApiPost(c.GetTeamRoute()+"/hooks/outgoing/update", hook.ToJson()); err != nil {
+		return nil, err
+	} else {
+		defer closeBody(r)
+		return &Result{r.Header.Get(HEADER_REQUEST_ID),
+			r.Header.Get(HEADER_ETAG_SERVER), OutgoingWebhookFromJson(r.Body)}, nil
+	}
+}
+
 func (c *Client) DeleteOutgoingWebhook(id string) (*Result, *AppError) {
 	data := make(map[string]string)
 	data["id"] = id
@@ -2319,3 +2366,26 @@ func (c *Client) ListReactions(channelId string, postId string) ([]*Reaction, *A
 		return ReactionsFromJson(r.Body), nil
 	}
 }
+
+// Updates the user's roles in the channel by replacing them with the roles provided.
+func (c *Client) UpdateChannelRoles(channelId string, userId string, roles string) (map[string]string, *ResponseMetadata) {
+	data := make(map[string]string)
+	data["new_roles"] = roles
+	data["user_id"] = userId
+
+	if r, err := c.DoApiPost(c.GetChannelRoute(channelId)+"/update_member_roles", MapToJson(data)); err != nil {
+		metadata := ResponseMetadata{Error: err}
+		if r != nil {
+			metadata.StatusCode = r.StatusCode
+		}
+		return nil, &metadata
+	} else {
+		defer closeBody(r)
+		return MapFromJson(r.Body),
+			&ResponseMetadata{
+				StatusCode: r.StatusCode,
+				RequestId:  r.Header.Get(HEADER_REQUEST_ID),
+				Etag:       r.Header.Get(HEADER_ETAG_SERVER),
+			}
+	}
+}

vendor/github.com/mattermost/platform/model/command_response.go

@@ -5,6 +5,7 @@ package model
 
 import (
 	"encoding/json"
+	"fmt"
 	"io"
 )
 
@@ -14,12 +15,12 @@ const (
 )
 
 type CommandResponse struct {
-	ResponseType string      `json:"response_type"`
-	Text         string      `json:"text"`
-	Username     string      `json:"username"`
-	IconURL      string      `json:"icon_url"`
-	GotoLocation string      `json:"goto_location"`
-	Attachments  interface{} `json:"attachments"`
+	ResponseType string             `json:"response_type"`
+	Text         string             `json:"text"`
+	Username     string             `json:"username"`
+	IconURL      string             `json:"icon_url"`
+	GotoLocation string             `json:"goto_location"`
+	Attachments  []*SlackAttachment `json:"attachments"`
 }
 
 func (o *CommandResponse) ToJson() string {
@@ -34,10 +35,19 @@ func (o *CommandResponse) ToJson() string {
 func CommandResponseFromJson(data io.Reader) *CommandResponse {
 	decoder := json.NewDecoder(data)
 	var o CommandResponse
-	err := decoder.Decode(&o)
-	if err == nil {
-		return &o
-	} else {
+
+	if err := decoder.Decode(&o); err != nil {
 		return nil
 	}
+
+	// Ensure attachment fields are stored as strings
+	for _, attachment := range o.Attachments {
+		for _, field := range attachment.Fields {
+			if field.Value != nil {
+				field.Value = fmt.Sprintf("%v", field.Value)
+			}
+		}
+	}
+
+	return &o
 }

vendor/github.com/mattermost/platform/model/config.go

@@ -49,49 +49,109 @@ const (
 	RESTRICT_EMOJI_CREATION_ADMIN        = "admin"
 	RESTRICT_EMOJI_CREATION_SYSTEM_ADMIN = "system_admin"
 
+	PERMISSIONS_DELETE_POST_ALL          = "all"
+	PERMISSIONS_DELETE_POST_TEAM_ADMIN   = "team_admin"
+	PERMISSIONS_DELETE_POST_SYSTEM_ADMIN = "system_admin"
+
+	ALLOW_EDIT_POST_ALWAYS     = "always"
+	ALLOW_EDIT_POST_NEVER      = "never"
+	ALLOW_EDIT_POST_TIME_LIMIT = "time_limit"
+
 	EMAIL_BATCHING_BUFFER_SIZE = 256
 	EMAIL_BATCHING_INTERVAL    = 30
 
 	SITENAME_MAX_LENGTH = 30
+
+	SERVICE_SETTINGS_DEFAULT_SITE_URL        = ""
+	SERVICE_SETTINGS_DEFAULT_TLS_CERT_FILE   = ""
+	SERVICE_SETTINGS_DEFAULT_TLS_KEY_FILE    = ""
+	SERVICE_SETTINGS_DEFAULT_READ_TIMEOUT    = 300
+	SERVICE_SETTINGS_DEFAULT_WRITE_TIMEOUT   = 300
+	SERVICE_SETTINGS_DEFAULT_ALLOW_CORS_FROM = ""
+
+	TEAM_SETTINGS_DEFAULT_CUSTOM_BRAND_TEXT        = ""
+	TEAM_SETTINGS_DEFAULT_CUSTOM_DESCRIPTION_TEXT  = ""
+	TEAM_SETTINGS_DEFAULT_USER_STATUS_AWAY_TIMEOUT = 300
+
+	EMAIL_SETTINGS_DEFAULT_FEEDBACK_ORGANIZATION = ""
+
+	SUPPORT_SETTINGS_DEFAULT_TERMS_OF_SERVICE_LINK = "https://about.mattermost.com/default-terms/"
+	SUPPORT_SETTINGS_DEFAULT_PRIVACY_POLICY_LINK   = "https://about.mattermost.com/default-privacy-policy/"
+	SUPPORT_SETTINGS_DEFAULT_ABOUT_LINK            = "https://about.mattermost.com/default-about/"
+	SUPPORT_SETTINGS_DEFAULT_HELP_LINK             = "https://about.mattermost.com/default-help/"
+	SUPPORT_SETTINGS_DEFAULT_REPORT_A_PROBLEM_LINK = "https://about.mattermost.com/default-report-a-problem/"
+	SUPPORT_SETTINGS_DEFAULT_SUPPORT_EMAIL         = "feedback@mattermost.com"
+
+	LDAP_SETTINGS_DEFAULT_FIRST_NAME_ATTRIBUTE = ""
+	LDAP_SETTINGS_DEFAULT_LAST_NAME_ATTRIBUTE  = ""
+	LDAP_SETTINGS_DEFAULT_EMAIL_ATTRIBUTE      = ""
+	LDAP_SETTINGS_DEFAULT_USERNAME_ATTRIBUTE   = ""
+	LDAP_SETTINGS_DEFAULT_NICKNAME_ATTRIBUTE   = ""
+	LDAP_SETTINGS_DEFAULT_ID_ATTRIBUTE         = ""
+	LDAP_SETTINGS_DEFAULT_POSITION_ATTRIBUTE   = ""
+	LDAP_SETTINGS_DEFAULT_LOGIN_FIELD_NAME     = ""
+
+	SAML_SETTINGS_DEFAULT_FIRST_NAME_ATTRIBUTE = ""
+	SAML_SETTINGS_DEFAULT_LAST_NAME_ATTRIBUTE  = ""
+	SAML_SETTINGS_DEFAULT_EMAIL_ATTRIBUTE      = ""
+	SAML_SETTINGS_DEFAULT_USERNAME_ATTRIBUTE   = ""
+	SAML_SETTINGS_DEFAULT_NICKNAME_ATTRIBUTE   = ""
+	SAML_SETTINGS_DEFAULT_LOCALE_ATTRIBUTE     = ""
+	SAML_SETTINGS_DEFAULT_POSITION_ATTRIBUTE   = ""
+
+	NATIVEAPP_SETTINGS_DEFAULT_APP_DOWNLOAD_LINK         = "https://about.mattermost.com/downloads/"
+	NATIVEAPP_SETTINGS_DEFAULT_ANDROID_APP_DOWNLOAD_LINK = "https://about.mattermost.com/mattermost-android-app/"
+	NATIVEAPP_SETTINGS_DEFAULT_IOS_APP_DOWNLOAD_LINK     = "https://about.mattermost.com/mattermost-ios-app/"
+
+	WEBRTC_SETTINGS_DEFAULT_STUN_URI = ""
+	WEBRTC_SETTINGS_DEFAULT_TURN_URI = ""
+
+	ANALYTICS_SETTINGS_DEFAULT_MAX_USERS_FOR_STATISTICS = 2500
 )
 
 type ServiceSettings struct {
-	SiteURL                           *string
-	ListenAddress                     string
-	ConnectionSecurity                *string
-	TLSCertFile                       *string
-	TLSKeyFile                        *string
-	UseLetsEncrypt                    *bool
-	LetsEncryptCertificateCacheFile   *string
-	Forward80To443                    *bool
-	ReadTimeout                       *int
-	WriteTimeout                      *int
-	MaximumLoginAttempts              int
-	SegmentDeveloperKey               string
-	GoogleDeveloperKey                string
-	EnableOAuthServiceProvider        bool
-	EnableIncomingWebhooks            bool
-	EnableOutgoingWebhooks            bool
-	EnableCommands                    *bool
-	EnableOnlyAdminIntegrations       *bool
-	EnablePostUsernameOverride        bool
-	EnablePostIconOverride            bool
-	EnableTesting                     bool
-	EnableDeveloper                   *bool
-	EnableSecurityFixAlert            *bool
-	EnableInsecureOutgoingConnections *bool
-	EnableMultifactorAuthentication   *bool
-	EnforceMultifactorAuthentication  *bool
-	AllowCorsFrom                     *string
-	SessionLengthWebInDays            *int
-	SessionLengthMobileInDays         *int
-	SessionLengthSSOInDays            *int
-	SessionCacheInMinutes             *int
-	WebsocketSecurePort               *int
-	WebsocketPort                     *int
-	WebserverMode                     *string
-	EnableCustomEmoji                 *bool
-	RestrictCustomEmojiCreation       *string
+	SiteURL                                  *string
+	ListenAddress                            string
+	ConnectionSecurity                       *string
+	TLSCertFile                              *string
+	TLSKeyFile                               *string
+	UseLetsEncrypt                           *bool
+	LetsEncryptCertificateCacheFile          *string
+	Forward80To443                           *bool
+	ReadTimeout                              *int
+	WriteTimeout                             *int
+	MaximumLoginAttempts                     int
+	GoogleDeveloperKey                       string
+	EnableOAuthServiceProvider               bool
+	EnableIncomingWebhooks                   bool
+	EnableOutgoingWebhooks                   bool
+	EnableCommands                           *bool
+	EnableOnlyAdminIntegrations              *bool
+	EnablePostUsernameOverride               bool
+	EnablePostIconOverride                   bool
+	EnableLinkPreviews                       *bool
+	EnableTesting                            bool
+	EnableDeveloper                          *bool
+	EnableSecurityFixAlert                   *bool
+	EnableInsecureOutgoingConnections        *bool
+	EnableMultifactorAuthentication          *bool
+	EnforceMultifactorAuthentication         *bool
+	AllowCorsFrom                            *string
+	SessionLengthWebInDays                   *int
+	SessionLengthMobileInDays                *int
+	SessionLengthSSOInDays                   *int
+	SessionCacheInMinutes                    *int
+	WebsocketSecurePort                      *int
+	WebsocketPort                            *int
+	WebserverMode                            *string
+	EnableCustomEmoji                        *bool
+	RestrictCustomEmojiCreation              *string
+	RestrictPostDelete                       *string
+	AllowEditPost                            *string
+	PostEditTimeLimit                        *int
+	TimeBetweenUserTypingUpdatesMilliseconds *int64
+	EnableUserTypingMessages                 *bool
+	ClusterLogTimeoutMilliseconds            *int
 }
 
 type ClusterSettings struct {
@@ -433,7 +493,12 @@ func (o *Config) SetDefaults() {
 
 	if o.ServiceSettings.SiteURL == nil {
 		o.ServiceSettings.SiteURL = new(string)
-		*o.ServiceSettings.SiteURL = ""
+		*o.ServiceSettings.SiteURL = SERVICE_SETTINGS_DEFAULT_SITE_URL
+	}
+
+	if o.ServiceSettings.EnableLinkPreviews == nil {
+		o.ServiceSettings.EnableLinkPreviews = new(bool)
+		*o.ServiceSettings.EnableLinkPreviews = false
 	}
 
 	if o.ServiceSettings.EnableDeveloper == nil {
@@ -493,12 +558,12 @@ func (o *Config) SetDefaults() {
 
 	if o.TeamSettings.CustomBrandText == nil {
 		o.TeamSettings.CustomBrandText = new(string)
-		*o.TeamSettings.CustomBrandText = ""
+		*o.TeamSettings.CustomBrandText = TEAM_SETTINGS_DEFAULT_CUSTOM_BRAND_TEXT
 	}
 
 	if o.TeamSettings.CustomDescriptionText == nil {
 		o.TeamSettings.CustomDescriptionText = new(string)
-		*o.TeamSettings.CustomDescriptionText = ""
+		*o.TeamSettings.CustomDescriptionText = TEAM_SETTINGS_DEFAULT_CUSTOM_DESCRIPTION_TEXT
 	}
 
 	if o.TeamSettings.EnableOpenServer == nil {
@@ -552,7 +617,7 @@ func (o *Config) SetDefaults() {
 
 	if o.TeamSettings.UserStatusAwayTimeout == nil {
 		o.TeamSettings.UserStatusAwayTimeout = new(int64)
-		*o.TeamSettings.UserStatusAwayTimeout = 300
+		*o.TeamSettings.UserStatusAwayTimeout = TEAM_SETTINGS_DEFAULT_USER_STATUS_AWAY_TIMEOUT
 	}
 
 	if o.TeamSettings.MaxChannelsPerTeam == nil {
@@ -597,7 +662,7 @@ func (o *Config) SetDefaults() {
 
 	if o.EmailSettings.FeedbackOrganization == nil {
 		o.EmailSettings.FeedbackOrganization = new(string)
-		*o.EmailSettings.FeedbackOrganization = ""
+		*o.EmailSettings.FeedbackOrganization = EMAIL_SETTINGS_DEFAULT_FEEDBACK_ORGANIZATION
 	}
 
 	if o.EmailSettings.EnableEmailBatching == nil {
@@ -621,7 +686,7 @@ func (o *Config) SetDefaults() {
 
 	if o.SupportSettings.TermsOfServiceLink == nil {
 		o.SupportSettings.TermsOfServiceLink = new(string)
-		*o.SupportSettings.TermsOfServiceLink = "https://about.mattermost.com/default-terms/"
+		*o.SupportSettings.TermsOfServiceLink = SUPPORT_SETTINGS_DEFAULT_TERMS_OF_SERVICE_LINK
 	}
 
 	if !IsSafeLink(o.SupportSettings.PrivacyPolicyLink) {
@@ -630,7 +695,7 @@ func (o *Config) SetDefaults() {
 
 	if o.SupportSettings.PrivacyPolicyLink == nil {
 		o.SupportSettings.PrivacyPolicyLink = new(string)
-		*o.SupportSettings.PrivacyPolicyLink = ""
+		*o.SupportSettings.PrivacyPolicyLink = SUPPORT_SETTINGS_DEFAULT_PRIVACY_POLICY_LINK
 	}
 
 	if !IsSafeLink(o.SupportSettings.AboutLink) {
@@ -639,7 +704,7 @@ func (o *Config) SetDefaults() {
 
 	if o.SupportSettings.AboutLink == nil {
 		o.SupportSettings.AboutLink = new(string)
-		*o.SupportSettings.AboutLink = ""
+		*o.SupportSettings.AboutLink = SUPPORT_SETTINGS_DEFAULT_ABOUT_LINK
 	}
 
 	if !IsSafeLink(o.SupportSettings.HelpLink) {
@@ -648,7 +713,7 @@ func (o *Config) SetDefaults() {
 
 	if o.SupportSettings.HelpLink == nil {
 		o.SupportSettings.HelpLink = new(string)
-		*o.SupportSettings.HelpLink = ""
+		*o.SupportSettings.HelpLink = SUPPORT_SETTINGS_DEFAULT_HELP_LINK
 	}
 
 	if !IsSafeLink(o.SupportSettings.ReportAProblemLink) {
@@ -657,12 +722,12 @@ func (o *Config) SetDefaults() {
 
 	if o.SupportSettings.ReportAProblemLink == nil {
 		o.SupportSettings.ReportAProblemLink = new(string)
-		*o.SupportSettings.ReportAProblemLink = ""
+		*o.SupportSettings.ReportAProblemLink = SUPPORT_SETTINGS_DEFAULT_REPORT_A_PROBLEM_LINK
 	}
 
 	if o.SupportSettings.SupportEmail == nil {
 		o.SupportSettings.SupportEmail = new(string)
-		*o.SupportSettings.SupportEmail = "feedback@mattermost.com"
+		*o.SupportSettings.SupportEmail = SUPPORT_SETTINGS_DEFAULT_SUPPORT_EMAIL
 	}
 
 	if o.LdapSettings.Enable == nil {
@@ -707,37 +772,37 @@ func (o *Config) SetDefaults() {
 
 	if o.LdapSettings.FirstNameAttribute == nil {
 		o.LdapSettings.FirstNameAttribute = new(string)
-		*o.LdapSettings.FirstNameAttribute = ""
+		*o.LdapSettings.FirstNameAttribute = LDAP_SETTINGS_DEFAULT_FIRST_NAME_ATTRIBUTE
 	}
 
 	if o.LdapSettings.LastNameAttribute == nil {
 		o.LdapSettings.LastNameAttribute = new(string)
-		*o.LdapSettings.LastNameAttribute = ""
+		*o.LdapSettings.LastNameAttribute = LDAP_SETTINGS_DEFAULT_LAST_NAME_ATTRIBUTE
 	}
 
 	if o.LdapSettings.EmailAttribute == nil {
 		o.LdapSettings.EmailAttribute = new(string)
-		*o.LdapSettings.EmailAttribute = ""
+		*o.LdapSettings.EmailAttribute = LDAP_SETTINGS_DEFAULT_EMAIL_ATTRIBUTE
 	}
 
 	if o.LdapSettings.UsernameAttribute == nil {
 		o.LdapSettings.UsernameAttribute = new(string)
-		*o.LdapSettings.UsernameAttribute = ""
+		*o.LdapSettings.UsernameAttribute = LDAP_SETTINGS_DEFAULT_USERNAME_ATTRIBUTE
 	}
 
 	if o.LdapSettings.NicknameAttribute == nil {
 		o.LdapSettings.NicknameAttribute = new(string)
-		*o.LdapSettings.NicknameAttribute = ""
+		*o.LdapSettings.NicknameAttribute = LDAP_SETTINGS_DEFAULT_NICKNAME_ATTRIBUTE
 	}
 
 	if o.LdapSettings.IdAttribute == nil {
 		o.LdapSettings.IdAttribute = new(string)
-		*o.LdapSettings.IdAttribute = ""
+		*o.LdapSettings.IdAttribute = LDAP_SETTINGS_DEFAULT_ID_ATTRIBUTE
 	}
 
 	if o.LdapSettings.PositionAttribute == nil {
 		o.LdapSettings.PositionAttribute = new(string)
-		*o.LdapSettings.PositionAttribute = ""
+		*o.LdapSettings.PositionAttribute = LDAP_SETTINGS_DEFAULT_POSITION_ATTRIBUTE
 	}
 
 	if o.LdapSettings.SyncIntervalMinutes == nil {
@@ -762,7 +827,7 @@ func (o *Config) SetDefaults() {
 
 	if o.LdapSettings.LoginFieldName == nil {
 		o.LdapSettings.LoginFieldName = new(string)
-		*o.LdapSettings.LoginFieldName = ""
+		*o.LdapSettings.LoginFieldName = LDAP_SETTINGS_DEFAULT_LOGIN_FIELD_NAME
 	}
 
 	if o.ServiceSettings.SessionLengthWebInDays == nil {
@@ -807,7 +872,7 @@ func (o *Config) SetDefaults() {
 
 	if o.ServiceSettings.AllowCorsFrom == nil {
 		o.ServiceSettings.AllowCorsFrom = new(string)
-		*o.ServiceSettings.AllowCorsFrom = ""
+		*o.ServiceSettings.AllowCorsFrom = SERVICE_SETTINGS_DEFAULT_ALLOW_CORS_FROM
 	}
 
 	if o.ServiceSettings.WebserverMode == nil {
@@ -827,6 +892,21 @@ func (o *Config) SetDefaults() {
 		*o.ServiceSettings.RestrictCustomEmojiCreation = RESTRICT_EMOJI_CREATION_ALL
 	}
 
+	if o.ServiceSettings.RestrictPostDelete == nil {
+		o.ServiceSettings.RestrictPostDelete = new(string)
+		*o.ServiceSettings.RestrictPostDelete = PERMISSIONS_DELETE_POST_ALL
+	}
+
+	if o.ServiceSettings.AllowEditPost == nil {
+		o.ServiceSettings.AllowEditPost = new(string)
+		*o.ServiceSettings.AllowEditPost = ALLOW_EDIT_POST_ALWAYS
+	}
+
+	if o.ServiceSettings.PostEditTimeLimit == nil {
+		o.ServiceSettings.PostEditTimeLimit = new(int)
+		*o.ServiceSettings.PostEditTimeLimit = 300
+	}
+
 	if o.ClusterSettings.InterNodeListenAddress == nil {
 		o.ClusterSettings.InterNodeListenAddress = new(string)
 		*o.ClusterSettings.InterNodeListenAddress = ":8075"
@@ -853,7 +933,7 @@ func (o *Config) SetDefaults() {
 
 	if o.AnalyticsSettings.MaxUsersForStatistics == nil {
 		o.AnalyticsSettings.MaxUsersForStatistics = new(int)
-		*o.AnalyticsSettings.MaxUsersForStatistics = 2500
+		*o.AnalyticsSettings.MaxUsersForStatistics = ANALYTICS_SETTINGS_DEFAULT_MAX_USERS_FOR_STATISTICS
 	}
 
 	if o.ComplianceSettings.Enable == nil {
@@ -943,52 +1023,52 @@ func (o *Config) SetDefaults() {
 
 	if o.SamlSettings.FirstNameAttribute == nil {
 		o.SamlSettings.FirstNameAttribute = new(string)
-		*o.SamlSettings.FirstNameAttribute = ""
+		*o.SamlSettings.FirstNameAttribute = SAML_SETTINGS_DEFAULT_FIRST_NAME_ATTRIBUTE
 	}
 
 	if o.SamlSettings.LastNameAttribute == nil {
 		o.SamlSettings.LastNameAttribute = new(string)
-		*o.SamlSettings.LastNameAttribute = ""
+		*o.SamlSettings.LastNameAttribute = SAML_SETTINGS_DEFAULT_LAST_NAME_ATTRIBUTE
 	}
 
 	if o.SamlSettings.EmailAttribute == nil {
 		o.SamlSettings.EmailAttribute = new(string)
-		*o.SamlSettings.EmailAttribute = ""
+		*o.SamlSettings.EmailAttribute = SAML_SETTINGS_DEFAULT_EMAIL_ATTRIBUTE
 	}
 
 	if o.SamlSettings.UsernameAttribute == nil {
 		o.SamlSettings.UsernameAttribute = new(string)
-		*o.SamlSettings.UsernameAttribute = ""
+		*o.SamlSettings.UsernameAttribute = SAML_SETTINGS_DEFAULT_USERNAME_ATTRIBUTE
 	}
 
 	if o.SamlSettings.NicknameAttribute == nil {
 		o.SamlSettings.NicknameAttribute = new(string)
-		*o.SamlSettings.NicknameAttribute = ""
+		*o.SamlSettings.NicknameAttribute = SAML_SETTINGS_DEFAULT_NICKNAME_ATTRIBUTE
 	}
 
 	if o.SamlSettings.PositionAttribute == nil {
 		o.SamlSettings.PositionAttribute = new(string)
-		*o.SamlSettings.PositionAttribute = ""
+		*o.SamlSettings.PositionAttribute = SAML_SETTINGS_DEFAULT_POSITION_ATTRIBUTE
 	}
 
 	if o.SamlSettings.LocaleAttribute == nil {
 		o.SamlSettings.LocaleAttribute = new(string)
-		*o.SamlSettings.LocaleAttribute = ""
+		*o.SamlSettings.LocaleAttribute = SAML_SETTINGS_DEFAULT_LOCALE_ATTRIBUTE
 	}
 
 	if o.NativeAppSettings.AppDownloadLink == nil {
 		o.NativeAppSettings.AppDownloadLink = new(string)
-		*o.NativeAppSettings.AppDownloadLink = "https://about.mattermost.com/downloads/"
+		*o.NativeAppSettings.AppDownloadLink = NATIVEAPP_SETTINGS_DEFAULT_APP_DOWNLOAD_LINK
 	}
 
 	if o.NativeAppSettings.AndroidAppDownloadLink == nil {
 		o.NativeAppSettings.AndroidAppDownloadLink = new(string)
-		*o.NativeAppSettings.AndroidAppDownloadLink = "https://about.mattermost.com/mattermost-android-app/"
+		*o.NativeAppSettings.AndroidAppDownloadLink = NATIVEAPP_SETTINGS_DEFAULT_ANDROID_APP_DOWNLOAD_LINK
 	}
 
 	if o.NativeAppSettings.IosAppDownloadLink == nil {
 		o.NativeAppSettings.IosAppDownloadLink = new(string)
-		*o.NativeAppSettings.IosAppDownloadLink = "https://about.mattermost.com/mattermost-ios-app/"
+		*o.NativeAppSettings.IosAppDownloadLink = NATIVEAPP_SETTINGS_DEFAULT_IOS_APP_DOWNLOAD_LINK
 	}
 
 	if o.RateLimitSettings.Enable == nil {
@@ -1008,12 +1088,12 @@ func (o *Config) SetDefaults() {
 
 	if o.ServiceSettings.TLSKeyFile == nil {
 		o.ServiceSettings.TLSKeyFile = new(string)
-		*o.ServiceSettings.TLSKeyFile = ""
+		*o.ServiceSettings.TLSKeyFile = SERVICE_SETTINGS_DEFAULT_TLS_KEY_FILE
 	}
 
 	if o.ServiceSettings.TLSCertFile == nil {
 		o.ServiceSettings.TLSCertFile = new(string)
-		*o.ServiceSettings.TLSCertFile = ""
+		*o.ServiceSettings.TLSCertFile = SERVICE_SETTINGS_DEFAULT_TLS_CERT_FILE
 	}
 
 	if o.ServiceSettings.UseLetsEncrypt == nil {
@@ -1028,12 +1108,12 @@ func (o *Config) SetDefaults() {
 
 	if o.ServiceSettings.ReadTimeout == nil {
 		o.ServiceSettings.ReadTimeout = new(int)
-		*o.ServiceSettings.ReadTimeout = 300
+		*o.ServiceSettings.ReadTimeout = SERVICE_SETTINGS_DEFAULT_READ_TIMEOUT
 	}
 
 	if o.ServiceSettings.WriteTimeout == nil {
 		o.ServiceSettings.WriteTimeout = new(int)
-		*o.ServiceSettings.WriteTimeout = 300
+		*o.ServiceSettings.WriteTimeout = SERVICE_SETTINGS_DEFAULT_WRITE_TIMEOUT
 	}
 
 	if o.ServiceSettings.Forward80To443 == nil {
@@ -1046,6 +1126,21 @@ func (o *Config) SetDefaults() {
 		*o.MetricsSettings.BlockProfileRate = 0
 	}
 
+	if o.ServiceSettings.TimeBetweenUserTypingUpdatesMilliseconds == nil {
+		o.ServiceSettings.TimeBetweenUserTypingUpdatesMilliseconds = new(int64)
+		*o.ServiceSettings.TimeBetweenUserTypingUpdatesMilliseconds = 5000
+	}
+
+	if o.ServiceSettings.EnableUserTypingMessages == nil {
+		o.ServiceSettings.EnableUserTypingMessages = new(bool)
+		*o.ServiceSettings.EnableUserTypingMessages = true
+	}
+
+	if o.ServiceSettings.ClusterLogTimeoutMilliseconds == nil {
+		o.ServiceSettings.ClusterLogTimeoutMilliseconds = new(int)
+		*o.ServiceSettings.ClusterLogTimeoutMilliseconds = 2000
+	}
+
 	o.defaultWebrtcSettings()
 }
 
@@ -1277,6 +1372,10 @@ func (o *Config) IsValid() *AppError {
 		return NewLocAppError("Config.IsValid", "model.config.is_valid.write_timeout.app_error", nil, "")
 	}
 
+	if *o.ServiceSettings.TimeBetweenUserTypingUpdatesMilliseconds < 1000 {
+		return NewLocAppError("Config.IsValid", "model.config.is_valid.time_between_user_typing.app_error", nil, "")
+	}
+
 	return nil
 }
 
@@ -1339,12 +1438,12 @@ func (o *Config) defaultWebrtcSettings() {
 
 	if o.WebrtcSettings.StunURI == nil {
 		o.WebrtcSettings.StunURI = new(string)
-		*o.WebrtcSettings.StunURI = ""
+		*o.WebrtcSettings.StunURI = WEBRTC_SETTINGS_DEFAULT_STUN_URI
 	}
 
 	if o.WebrtcSettings.TurnURI == nil {
 		o.WebrtcSettings.TurnURI = new(string)
-		*o.WebrtcSettings.TurnURI = ""
+		*o.WebrtcSettings.TurnURI = WEBRTC_SETTINGS_DEFAULT_TURN_URI
 	}
 
 	if o.WebrtcSettings.TurnUsername == nil {

vendor/github.com/mattermost/platform/model/file.go

@@ -8,6 +8,10 @@ import (
 	"io"
 )
 
+const (
+	MaxImageSize = 6048 * 4032 // 24 megapixels, roughly 36MB as a raw image
+)
+
 var (
 	IMAGE_EXTENSIONS = [5]string{".jpg", ".jpeg", ".gif", ".bmp", ".png"}
 	IMAGE_MIME_TYPES = map[string]string{".jpg": "image/jpeg", ".jpeg": "image/jpeg", ".gif": "image/gif", ".bmp": "image/bmp", ".png": "image/png", ".tiff": "image/tiff"}

vendor/github.com/mattermost/platform/model/gitlab/gitlab.go

@@ -65,6 +65,15 @@ func gitLabUserFromJson(data io.Reader) *GitLabUser {
 	}
 }
 
+func (glu *GitLabUser) ToJson() string {
+	b, err := json.Marshal(glu)
+	if err != nil {
+		return ""
+	} else {
+		return string(b)
+	}
+}
+
 func (glu *GitLabUser) IsValid() bool {
 	if glu.Id == 0 {
 		return false

vendor/github.com/mattermost/platform/model/incoming_webhook.go

@@ -29,13 +29,13 @@ type IncomingWebhook struct {
 }
 
 type IncomingWebhookRequest struct {
-	Text        string          `json:"text"`
-	Username    string          `json:"username"`
-	IconURL     string          `json:"icon_url"`
-	ChannelName string          `json:"channel"`
-	Props       StringInterface `json:"props"`
-	Attachments interface{}     `json:"attachments"`
-	Type        string          `json:"type"`
+	Text        string             `json:"text"`
+	Username    string             `json:"username"`
+	IconURL     string             `json:"icon_url"`
+	ChannelName string             `json:"channel"`
+	Props       StringInterface    `json:"props"`
+	Attachments []*SlackAttachment `json:"attachments"`
+	Type        string             `json:"type"`
 }
 
 func (o *IncomingWebhook) ToJson() string {
@@ -212,31 +212,15 @@ func expandAnnouncement(text string) string {
 func expandAnnouncements(i *IncomingWebhookRequest) {
 	i.Text = expandAnnouncement(i.Text)
 
-	if i.Attachments != nil {
-		attachments := i.Attachments.([]interface{})
-		for _, attachment := range attachments {
-			a := attachment.(map[string]interface{})
+	for _, attachment := range i.Attachments {
+		attachment.Pretext = expandAnnouncement(attachment.Pretext)
+		attachment.Text = expandAnnouncement(attachment.Text)
+		attachment.Title = expandAnnouncement(attachment.Title)
 
-			if a["pretext"] != nil {
-				a["pretext"] = expandAnnouncement(a["pretext"].(string))
-			}
-
-			if a["text"] != nil {
-				a["text"] = expandAnnouncement(a["text"].(string))
-			}
-
-			if a["title"] != nil {
-				a["title"] = expandAnnouncement(a["title"].(string))
-			}
-
-			if a["fields"] != nil {
-				fields := a["fields"].([]interface{})
-				for _, field := range fields {
-					f := field.(map[string]interface{})
-					if f["value"] != nil {
-						f["value"] = expandAnnouncement(fmt.Sprintf("%v", f["value"]))
-					}
-				}
+		for _, field := range attachment.Fields {
+			if field.Value != nil {
+				// Ensure the value is set to a string if it is set
+				field.Value = expandAnnouncement(fmt.Sprintf("%v", field.Value))
 			}
 		}
 	}

vendor/github.com/mattermost/platform/model/job.go

@@ -14,8 +14,8 @@ type ScheduledTask struct {
 	Name      string        `json:"name"`
 	Interval  time.Duration `json:"interval"`
 	Recurring bool          `json:"recurring"`
-	function  TaskFunc      `json:",omitempty"`
-	timer     *time.Timer   `json:",omitempty"`
+	function  TaskFunc
+	timer     *time.Timer
 }
 
 var tasks = make(map[string]*ScheduledTask)

vendor/github.com/mattermost/platform/model/license.go

@@ -8,6 +8,11 @@ import (
 	"io"
 )
 
+const (
+	EXPIRED_LICENSE_ERROR = "api.license.add_license.expired.app_error"
+	INVALID_LICENSE_ERROR = "api.license.add_license.invalid.app_error"
+)
+
 type LicenseRecord struct {
 	Id       string `json:"id"`
 	CreateAt int64  `json:"create_at"`

vendor/github.com/mattermost/platform/model/post.go

@@ -14,10 +14,15 @@ const (
 	POST_DEFAULT               = ""
 	POST_SLACK_ATTACHMENT      = "slack_attachment"
 	POST_SYSTEM_GENERIC        = "system_generic"
-	POST_JOIN_LEAVE            = "system_join_leave"
-	POST_ADD_REMOVE            = "system_add_remove"
+	POST_JOIN_LEAVE            = "system_join_leave" // Deprecated, use POST_JOIN_CHANNEL or POST_LEAVE_CHANNEL instead
+	POST_JOIN_CHANNEL          = "system_join_channel"
+	POST_LEAVE_CHANNEL         = "system_leave_channel"
+	POST_ADD_REMOVE            = "system_add_remove" // Deprecated, use POST_ADD_TO_CHANNEL or POST_REMOVE_FROM_CHANNEL instead
+	POST_ADD_TO_CHANNEL        = "system_add_to_channel"
+	POST_REMOVE_FROM_CHANNEL   = "system_remove_from_channel"
 	POST_HEADER_CHANGE         = "system_header_change"
 	POST_DISPLAYNAME_CHANGE    = "system_displayname_change"
+	POST_PURPOSE_CHANGE        = "system_purpose_change"
 	POST_CHANNEL_DELETED       = "system_channel_deleted"
 	POST_EPHEMERAL             = "system_ephemeral"
 	POST_FILEIDS_MAX_RUNES     = 150
@@ -31,6 +36,7 @@ type Post struct {
 	Id            string          `json:"id"`
 	CreateAt      int64           `json:"create_at"`
 	UpdateAt      int64           `json:"update_at"`
+	EditAt        int64           `json:"edit_at"`
 	DeleteAt      int64           `json:"delete_at"`
 	UserId        string          `json:"user_id"`
 	ChannelId     string          `json:"channel_id"`
@@ -119,7 +125,9 @@ func (o *Post) IsValid() *AppError {
 
 	// should be removed once more message types are supported
 	if !(o.Type == POST_DEFAULT || o.Type == POST_JOIN_LEAVE || o.Type == POST_ADD_REMOVE ||
-		o.Type == POST_SLACK_ATTACHMENT || o.Type == POST_HEADER_CHANGE ||
+		o.Type == POST_JOIN_CHANNEL || o.Type == POST_LEAVE_CHANNEL ||
+		o.Type == POST_REMOVE_FROM_CHANNEL || o.Type == POST_ADD_TO_CHANNEL ||
+		o.Type == POST_SLACK_ATTACHMENT || o.Type == POST_HEADER_CHANGE || o.Type == POST_PURPOSE_CHANGE ||
 		o.Type == POST_DISPLAYNAME_CHANGE || o.Type == POST_CHANNEL_DELETED) {
 		return NewLocAppError("Post.IsValid", "model.post.is_valid.type.app_error", nil, "id="+o.Type)
 	}

vendor/github.com/mattermost/platform/model/post_list.go

@@ -13,6 +13,13 @@ type PostList struct {
 	Posts map[string]*Post `json:"posts"`
 }
 
+func NewPostList() *PostList {
+	return &PostList{
+		Order: make([]string, 0),
+		Posts: make(map[string]*Post),
+	}
+}
+
 func (o *PostList) ToJson() string {
 	b, err := json.Marshal(o)
 	if err != nil {
@@ -72,10 +79,18 @@ func (o *PostList) Etag() string {
 		if v.UpdateAt > t {
 			t = v.UpdateAt
 			id = v.Id
+		} else if v.UpdateAt == t && v.Id > id {
+			t = v.UpdateAt
+			id = v.Id
 		}
 	}
 
-	return Etag(id, t)
+	orderId := ""
+	if len(o.Order) > 0 {
+		orderId = o.Order[0]
+	}
+
+	return Etag(orderId, id, t)
 }
 
 func (o *PostList) IsChannelId(channelId string) bool {

vendor/github.com/mattermost/platform/model/push_notification.go

@@ -10,8 +10,10 @@ import (
 )
 
 const (
-	PUSH_NOTIFY_APPLE   = "apple"
-	PUSH_NOTIFY_ANDROID = "android"
+	PUSH_NOTIFY_APPLE                = "apple"
+	PUSH_NOTIFY_ANDROID              = "android"
+	PUSH_NOTIFY_APPLE_REACT_NATIVE   = "apple_rn"
+	PUSH_NOTIFY_ANDROID_REACT_NATIVE = "android_rn"
 
 	PUSH_TYPE_MESSAGE = "message"
 	PUSH_TYPE_CLEAR   = "clear"
@@ -46,12 +48,12 @@ func (me *PushNotification) ToJson() string {
 }
 
 func (me *PushNotification) SetDeviceIdAndPlatform(deviceId string) {
-	if strings.HasPrefix(deviceId, PUSH_NOTIFY_APPLE+":") {
-		me.Platform = PUSH_NOTIFY_APPLE
-		me.DeviceId = strings.TrimPrefix(deviceId, PUSH_NOTIFY_APPLE+":")
-	} else if strings.HasPrefix(deviceId, PUSH_NOTIFY_ANDROID+":") {
-		me.Platform = PUSH_NOTIFY_ANDROID
-		me.DeviceId = strings.TrimPrefix(deviceId, PUSH_NOTIFY_ANDROID+":")
+
+	index := strings.Index(deviceId, ":")
+
+	if index > -1 {
+		me.Platform = deviceId[:index]
+		me.DeviceId = deviceId[index+1:]
 	}
 }
 

vendor/github.com/mattermost/platform/model/push_response.go

@@ -0,0 +1,57 @@
+// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package model
+
+import (
+	"encoding/json"
+	"io"
+)
+
+const (
+	PUSH_STATUS           = "status"
+	PUSH_STATUS_OK        = "OK"
+	PUSH_STATUS_FAIL      = "FAIL"
+	PUSH_STATUS_REMOVE    = "REMOVE"
+	PUSH_STATUS_ERROR_MSG = "error"
+)
+
+type PushResponse map[string]string
+
+func NewOkPushResponse() PushResponse {
+	m := make(map[string]string)
+	m[PUSH_STATUS] = PUSH_STATUS_OK
+	return m
+}
+
+func NewRemovePushResponse() PushResponse {
+	m := make(map[string]string)
+	m[PUSH_STATUS] = PUSH_STATUS_REMOVE
+	return m
+}
+
+func NewErrorPushResponse(message string) PushResponse {
+	m := make(map[string]string)
+	m[PUSH_STATUS] = PUSH_STATUS_FAIL
+	m[PUSH_STATUS_ERROR_MSG] = message
+	return m
+}
+
+func (me *PushResponse) ToJson() string {
+	if b, err := json.Marshal(me); err != nil {
+		return ""
+	} else {
+		return string(b)
+	}
+}
+
+func PushResponseFromJson(data io.Reader) PushResponse {
+	decoder := json.NewDecoder(data)
+
+	var objmap PushResponse
+	if err := decoder.Decode(&objmap); err != nil {
+		return make(map[string]string)
+	} else {
+		return objmap
+	}
+}

vendor/github.com/mattermost/platform/model/session.go

@@ -11,7 +11,7 @@ import (
 
 const (
 	SESSION_COOKIE_TOKEN  = "MMAUTHTOKEN"
-	SESSION_CACHE_SIZE    = 25000
+	SESSION_CACHE_SIZE    = 35000
 	SESSION_PROP_PLATFORM = "platform"
 	SESSION_PROP_OS       = "os"
 	SESSION_PROP_BROWSER  = "browser"
@@ -111,8 +111,7 @@ func (me *Session) GetTeamByTeamId(teamId string) *TeamMember {
 }
 
 func (me *Session) IsMobileApp() bool {
-	return len(me.DeviceId) > 0 &&
-		(strings.HasPrefix(me.DeviceId, PUSH_NOTIFY_APPLE+":") || strings.HasPrefix(me.DeviceId, PUSH_NOTIFY_ANDROID+":"))
+	return len(me.DeviceId) > 0
 }
 
 func (me *Session) GetUserRoles() []string {

vendor/github.com/mattermost/platform/model/slack_attachment.go

@@ -0,0 +1,29 @@
+// Copyright (c) 2017 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package model
+
+type SlackAttachment struct {
+	Id         int64                   `json:"id"`
+	Fallback   string                  `json:"fallback"`
+	Color      string                  `json:"color"`
+	Pretext    string                  `json:"pretext"`
+	AuthorName string                  `json:"author_name"`
+	AuthorLink string                  `json:"author_link"`
+	AuthorIcon string                  `json:"author_icon"`
+	Title      string                  `json:"title"`
+	TitleLink  string                  `json:"title_link"`
+	Text       string                  `json:"text"`
+	Fields     []*SlackAttachmentField `json:"fields"`
+	ImageURL   string                  `json:"image_url"`
+	ThumbURL   string                  `json:"thumb_url"`
+	Footer     string                  `json:"footer"`
+	FooterIcon string                  `json:"footer_icon"`
+	Timestamp  interface{}             `json:"ts"` // This is either a string or an int64
+}
+
+type SlackAttachmentField struct {
+	Title string      `json:"title"`
+	Value interface{} `json:"value"`
+	Short bool        `json:"short"`
+}

vendor/github.com/mattermost/platform/model/status.go

@@ -12,7 +12,7 @@ const (
 	STATUS_OFFLINE         = "offline"
 	STATUS_AWAY            = "away"
 	STATUS_ONLINE          = "online"
-	STATUS_CACHE_SIZE      = 25000
+	STATUS_CACHE_SIZE      = SESSION_CACHE_SIZE
 	STATUS_CHANNEL_TIMEOUT = 20000  // 20 seconds
 	STATUS_MIN_UPDATE_TIME = 120000 // 2 minutes
 )

vendor/github.com/mattermost/platform/model/team.go

@@ -7,14 +7,22 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"net/http"
 	"regexp"
 	"strings"
 	"unicode/utf8"
 )
 
 const (
-	TEAM_OPEN   = "O"
-	TEAM_INVITE = "I"
+	TEAM_OPEN                       = "O"
+	TEAM_INVITE                     = "I"
+	TEAM_ALLOWED_DOMAINS_MAX_LENGTH = 500
+	TEAM_COMPANY_NAME_MAX_LENGTH    = 64
+	TEAM_DESCRIPTION_MAX_LENGTH     = 255
+	TEAM_DISPLAY_NAME_MAX_RUNES     = 64
+	TEAM_EMAIL_MAX_LENGTH           = 128
+	TEAM_NAME_MAX_LENGTH            = 64
+	TEAM_NAME_MIN_LENGTH            = 2
 )
 
 type Team struct {
@@ -48,6 +56,14 @@ func InvitesFromJson(data io.Reader) *Invites {
 	}
 }
 
+func (o *Invites) ToEmailList() []string {
+	emailList := make([]string, len(o.Invites))
+	for _, invite := range o.Invites {
+		emailList = append(emailList, invite["email"])
+	}
+	return emailList
+}
+
 func (o *Invites) ToJson() string {
 	b, err := json.Marshal(o)
 	if err != nil {
@@ -97,6 +113,26 @@ func TeamMapFromJson(data io.Reader) map[string]*Team {
 	}
 }
 
+func TeamListToJson(t []*Team) string {
+	b, err := json.Marshal(t)
+	if err != nil {
+		return ""
+	} else {
+		return string(b)
+	}
+}
+
+func TeamListFromJson(data io.Reader) []*Team {
+	decoder := json.NewDecoder(data)
+	var teams []*Team
+	err := decoder.Decode(&teams)
+	if err == nil {
+		return teams
+	} else {
+		return nil
+	}
+}
+
 func (o *Team) Etag() string {
 	return Etag(o.Id, o.UpdateAt)
 }
@@ -104,55 +140,55 @@ func (o *Team) Etag() string {
 func (o *Team) IsValid() *AppError {
 
 	if len(o.Id) != 26 {
-		return NewLocAppError("Team.IsValid", "model.team.is_valid.id.app_error", nil, "")
+		return NewAppError("Team.IsValid", "model.team.is_valid.id.app_error", nil, "", http.StatusBadRequest)
 	}
 
 	if o.CreateAt == 0 {
-		return NewLocAppError("Team.IsValid", "model.team.is_valid.create_at.app_error", nil, "id="+o.Id)
+		return NewAppError("Team.IsValid", "model.team.is_valid.create_at.app_error", nil, "id="+o.Id, http.StatusBadRequest)
 	}
 
 	if o.UpdateAt == 0 {
-		return NewLocAppError("Team.IsValid", "model.team.is_valid.update_at.app_error", nil, "id="+o.Id)
+		return NewAppError("Team.IsValid", "model.team.is_valid.update_at.app_error", nil, "id="+o.Id, http.StatusBadRequest)
 	}
 
-	if len(o.Email) > 128 {
-		return NewLocAppError("Team.IsValid", "model.team.is_valid.email.app_error", nil, "id="+o.Id)
+	if len(o.Email) > TEAM_EMAIL_MAX_LENGTH {
+		return NewAppError("Team.IsValid", "model.team.is_valid.email.app_error", nil, "id="+o.Id, http.StatusBadRequest)
 	}
 
 	if len(o.Email) > 0 && !IsValidEmail(o.Email) {
-		return NewLocAppError("Team.IsValid", "model.team.is_valid.email.app_error", nil, "id="+o.Id)
+		return NewAppError("Team.IsValid", "model.team.is_valid.email.app_error", nil, "id="+o.Id, http.StatusBadRequest)
 	}
 
-	if utf8.RuneCountInString(o.DisplayName) == 0 || utf8.RuneCountInString(o.DisplayName) > 64 {
-		return NewLocAppError("Team.IsValid", "model.team.is_valid.name.app_error", nil, "id="+o.Id)
+	if utf8.RuneCountInString(o.DisplayName) == 0 || utf8.RuneCountInString(o.DisplayName) > TEAM_DISPLAY_NAME_MAX_RUNES {
+		return NewAppError("Team.IsValid", "model.team.is_valid.name.app_error", nil, "id="+o.Id, http.StatusBadRequest)
 	}
 
-	if len(o.Name) > 64 {
-		return NewLocAppError("Team.IsValid", "model.team.is_valid.url.app_error", nil, "id="+o.Id)
+	if len(o.Name) > TEAM_NAME_MAX_LENGTH {
+		return NewAppError("Team.IsValid", "model.team.is_valid.url.app_error", nil, "id="+o.Id, http.StatusBadRequest)
 	}
 
-	if len(o.Description) > 255 {
-		return NewLocAppError("Team.IsValid", "model.team.is_valid.description.app_error", nil, "id="+o.Id)
+	if len(o.Description) > TEAM_DESCRIPTION_MAX_LENGTH {
+		return NewAppError("Team.IsValid", "model.team.is_valid.description.app_error", nil, "id="+o.Id, http.StatusBadRequest)
 	}
 
 	if IsReservedTeamName(o.Name) {
-		return NewLocAppError("Team.IsValid", "model.team.is_valid.reserved.app_error", nil, "id="+o.Id)
+		return NewAppError("Team.IsValid", "model.team.is_valid.reserved.app_error", nil, "id="+o.Id, http.StatusBadRequest)
 	}
 
 	if !IsValidTeamName(o.Name) {
-		return NewLocAppError("Team.IsValid", "model.team.is_valid.characters.app_error", nil, "id="+o.Id)
+		return NewAppError("Team.IsValid", "model.team.is_valid.characters.app_error", nil, "id="+o.Id, http.StatusBadRequest)
 	}
 
 	if !(o.Type == TEAM_OPEN || o.Type == TEAM_INVITE) {
-		return NewLocAppError("Team.IsValid", "model.team.is_valid.type.app_error", nil, "id="+o.Id)
+		return NewAppError("Team.IsValid", "model.team.is_valid.type.app_error", nil, "id="+o.Id, http.StatusBadRequest)
 	}
 
-	if len(o.CompanyName) > 64 {
-		return NewLocAppError("Team.IsValid", "model.team.is_valid.company.app_error", nil, "id="+o.Id)
+	if len(o.CompanyName) > TEAM_COMPANY_NAME_MAX_LENGTH {
+		return NewAppError("Team.IsValid", "model.team.is_valid.company.app_error", nil, "id="+o.Id, http.StatusBadRequest)
 	}
 
-	if len(o.AllowedDomains) > 500 {
-		return NewLocAppError("Team.IsValid", "model.team.is_valid.domains.app_error", nil, "id="+o.Id)
+	if len(o.AllowedDomains) > TEAM_ALLOWED_DOMAINS_MAX_LENGTH {
+		return NewAppError("Team.IsValid", "model.team.is_valid.domains.app_error", nil, "id="+o.Id, http.StatusBadRequest)
 	}
 
 	return nil
@@ -193,7 +229,7 @@ func IsValidTeamName(s string) bool {
 		return false
 	}
 
-	if len(s) <= 1 {
+	if len(s) < TEAM_NAME_MIN_LENGTH {
 		return false
 	}
 

vendor/github.com/mattermost/platform/model/user.go

@@ -7,20 +7,36 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"net/http"
 	"regexp"
 	"strings"
+	"unicode"
 	"unicode/utf8"
 
 	"golang.org/x/crypto/bcrypt"
 )
 
 const (
-	USER_NOTIFY_ALL            = "all"
-	USER_NOTIFY_MENTION        = "mention"
-	USER_NOTIFY_NONE           = "none"
+	USER_NOTIFY_ALL         = "all"
+	USER_NOTIFY_MENTION     = "mention"
+	USER_NOTIFY_NONE        = "none"
+	DESKTOP_NOTIFY_PROP     = "desktop"
+	MARK_UNREAD_NOTIFY_PROP = "mark_unread"
+	PUSH_NOTIFY_PROP        = "push"
+	EMAIL_NOTIFY_PROP       = "email"
+
 	DEFAULT_LOCALE             = "en"
 	USER_AUTH_SERVICE_EMAIL    = "email"
 	USER_AUTH_SERVICE_USERNAME = "username"
+
+	USER_EMAIL_MAX_LENGTH     = 128
+	USER_NICKNAME_MAX_RUNES   = 64
+	USER_POSITION_MAX_RUNES   = 35
+	USER_FIRST_NAME_MAX_RUNES = 64
+	USER_LAST_NAME_MAX_RUNES  = 64
+	USER_AUTH_DATA_MAX_LENGTH = 128
+	USER_NAME_MAX_LENGTH      = 64
+	USER_NAME_MIN_LENGTH      = 1
 )
 
 type User struct {
@@ -51,56 +67,68 @@ type User struct {
 	LastActivityAt     int64     `db:"-" json:"last_activity_at,omitempty"`
 }
 
+type UserPatch struct {
+	Username    *string    `json:"username"`
+	Nickname    *string    `json:"nickname"`
+	FirstName   *string    `json:"first_name"`
+	LastName    *string    `json:"last_name"`
+	Position    *string    `json:"position"`
+	Email       *string    `json:"email"`
+	Props       *StringMap `json:"props,omitempty"`
+	NotifyProps *StringMap `json:"notify_props,omitempty"`
+	Locale      *string    `json:"locale"`
+}
+
 // IsValid validates the user and returns an error if it isn't configured
 // correctly.
 func (u *User) IsValid() *AppError {
 
 	if len(u.Id) != 26 {
-		return NewLocAppError("User.IsValid", "model.user.is_valid.id.app_error", nil, "")
+		return NewAppError("User.IsValid", "model.user.is_valid.id.app_error", nil, "", http.StatusBadRequest)
 	}
 
 	if u.CreateAt == 0 {
-		return NewLocAppError("User.IsValid", "model.user.is_valid.create_at.app_error", nil, "user_id="+u.Id)
+		return NewAppError("User.IsValid", "model.user.is_valid.create_at.app_error", nil, "user_id="+u.Id, http.StatusBadRequest)
 	}
 
 	if u.UpdateAt == 0 {
-		return NewLocAppError("User.IsValid", "model.user.is_valid.update_at.app_error", nil, "user_id="+u.Id)
+		return NewAppError("User.IsValid", "model.user.is_valid.update_at.app_error", nil, "user_id="+u.Id, http.StatusBadRequest)
 	}
 
 	if !IsValidUsername(u.Username) {
-		return NewLocAppError("User.IsValid", "model.user.is_valid.username.app_error", nil, "user_id="+u.Id)
+		return NewAppError("User.IsValid", "model.user.is_valid.username.app_error", nil, "user_id="+u.Id, http.StatusBadRequest)
 	}
 
-	if len(u.Email) > 128 || len(u.Email) == 0 {
-		return NewLocAppError("User.IsValid", "model.user.is_valid.email.app_error", nil, "user_id="+u.Id)
+	if len(u.Email) > USER_EMAIL_MAX_LENGTH || len(u.Email) == 0 {
+		return NewAppError("User.IsValid", "model.user.is_valid.email.app_error", nil, "user_id="+u.Id, http.StatusBadRequest)
 	}
 
-	if utf8.RuneCountInString(u.Nickname) > 64 {
-		return NewLocAppError("User.IsValid", "model.user.is_valid.nickname.app_error", nil, "user_id="+u.Id)
+	if utf8.RuneCountInString(u.Nickname) > USER_NICKNAME_MAX_RUNES {
+		return NewAppError("User.IsValid", "model.user.is_valid.nickname.app_error", nil, "user_id="+u.Id, http.StatusBadRequest)
 	}
 
-	if utf8.RuneCountInString(u.Position) > 35 {
-		return NewLocAppError("User.IsValid", "model.user.is_valid.position.app_error", nil, "user_id="+u.Id)
+	if utf8.RuneCountInString(u.Position) > USER_POSITION_MAX_RUNES {
+		return NewAppError("User.IsValid", "model.user.is_valid.position.app_error", nil, "user_id="+u.Id, http.StatusBadRequest)
 	}
 
-	if utf8.RuneCountInString(u.FirstName) > 64 {
-		return NewLocAppError("User.IsValid", "model.user.is_valid.first_name.app_error", nil, "user_id="+u.Id)
+	if utf8.RuneCountInString(u.FirstName) > USER_FIRST_NAME_MAX_RUNES {
+		return NewAppError("User.IsValid", "model.user.is_valid.first_name.app_error", nil, "user_id="+u.Id, http.StatusBadRequest)
 	}
 
-	if utf8.RuneCountInString(u.LastName) > 64 {
-		return NewLocAppError("User.IsValid", "model.user.is_valid.last_name.app_error", nil, "user_id="+u.Id)
+	if utf8.RuneCountInString(u.LastName) > USER_LAST_NAME_MAX_RUNES {
+		return NewAppError("User.IsValid", "model.user.is_valid.last_name.app_error", nil, "user_id="+u.Id, http.StatusBadRequest)
 	}
 
-	if u.AuthData != nil && len(*u.AuthData) > 128 {
-		return NewLocAppError("User.IsValid", "model.user.is_valid.auth_data.app_error", nil, "user_id="+u.Id)
+	if u.AuthData != nil && len(*u.AuthData) > USER_AUTH_DATA_MAX_LENGTH {
+		return NewAppError("User.IsValid", "model.user.is_valid.auth_data.app_error", nil, "user_id="+u.Id, http.StatusBadRequest)
 	}
 
 	if u.AuthData != nil && len(*u.AuthData) > 0 && len(u.AuthService) == 0 {
-		return NewLocAppError("User.IsValid", "model.user.is_valid.auth_data_type.app_error", nil, "user_id="+u.Id)
+		return NewAppError("User.IsValid", "model.user.is_valid.auth_data_type.app_error", nil, "user_id="+u.Id, http.StatusBadRequest)
 	}
 
 	if len(u.Password) > 0 && u.AuthData != nil && len(*u.AuthData) > 0 {
-		return NewLocAppError("User.IsValid", "model.user.is_valid.auth_data_pwd.app_error", nil, "user_id="+u.Id)
+		return NewAppError("User.IsValid", "model.user.is_valid.auth_data_pwd.app_error", nil, "user_id="+u.Id, http.StatusBadRequest)
 	}
 
 	return nil
@@ -115,7 +143,7 @@ func (u *User) PreSave() {
 	}
 
 	if u.Username == "" {
-		u.Username = NewId()
+		u.Username = "n" + NewId()
 	}
 
 	if u.AuthData != nil && *u.AuthData == "" {
@@ -205,6 +233,44 @@ func (user *User) UpdateMentionKeysFromUsername(oldUsername string) {
 	}
 }
 
+func (u *User) Patch(patch *UserPatch) {
+	if patch.Username != nil {
+		u.Username = *patch.Username
+	}
+
+	if patch.Nickname != nil {
+		u.Nickname = *patch.Nickname
+	}
+
+	if patch.FirstName != nil {
+		u.FirstName = *patch.FirstName
+	}
+
+	if patch.LastName != nil {
+		u.LastName = *patch.LastName
+	}
+
+	if patch.Position != nil {
+		u.Position = *patch.Position
+	}
+
+	if patch.Email != nil {
+		u.Email = *patch.Email
+	}
+
+	if patch.Props != nil {
+		u.Props = *patch.Props
+	}
+
+	if patch.NotifyProps != nil {
+		u.NotifyProps = *patch.NotifyProps
+	}
+
+	if patch.Locale != nil {
+		u.Locale = *patch.Locale
+	}
+}
+
 // ToJson convert a User to a json string
 func (u *User) ToJson() string {
 	b, err := json.Marshal(u)
@@ -215,6 +281,15 @@ func (u *User) ToJson() string {
 	}
 }
 
+func (u *UserPatch) ToJson() string {
+	b, err := json.Marshal(u)
+	if err != nil {
+		return ""
+	} else {
+		return string(b)
+	}
+}
+
 // Generate a valid strong etag so the browser can cache the results
 func (u *User) Etag(showFullName, showEmail bool) string {
 	return Etag(u.Id, u.UpdateAt, showFullName, showEmail)
@@ -376,6 +451,13 @@ func IsInRole(userRoles string, inRole string) bool {
 	return false
 }
 
+func (u *User) IsSSOUser() bool {
+	if u.AuthService != "" && u.AuthService != USER_AUTH_SERVICE_EMAIL {
+		return true
+	}
+	return false
+}
+
 func (u *User) IsOAuthUser() bool {
 	if u.AuthService == USER_AUTH_SERVICE_GITLAB {
 		return true
@@ -402,6 +484,17 @@ func UserFromJson(data io.Reader) *User {
 	}
 }
 
+func UserPatchFromJson(data io.Reader) *UserPatch {
+	decoder := json.NewDecoder(data)
+	var user UserPatch
+	err := decoder.Decode(&user)
+	if err == nil {
+		return &user
+	} else {
+		return nil
+	}
+}
+
 func UserMapToJson(u map[string]*User) string {
 	b, err := json.Marshal(u)
 	if err != nil {
@@ -472,7 +565,7 @@ var restrictedUsernames = []string{
 }
 
 func IsValidUsername(s string) bool {
-	if len(s) == 0 || len(s) > 64 {
+	if len(s) < USER_NAME_MIN_LENGTH || len(s) > USER_NAME_MAX_LENGTH {
 		return false
 	}
 
@@ -480,6 +573,10 @@ func IsValidUsername(s string) bool {
 		return false
 	}
 
+	if !unicode.IsLetter(rune(s[0])) {
+		return false
+	}
+
 	for _, restrictedUsername := range restrictedUsernames {
 		if s == restrictedUsername {
 			return false

vendor/github.com/mattermost/platform/model/utils.go

@@ -34,14 +34,14 @@ type StringArray []string
 type EncryptStringMap map[string]string
 
 type AppError struct {
-	Id            string                 `json:"id"`
-	Message       string                 `json:"message"`               // Message to be display to the end user without debugging information
-	DetailedError string                 `json:"detailed_error"`        // Internal error string to help the developer
-	RequestId     string                 `json:"request_id,omitempty"`  // The RequestId that's also set in the header
-	StatusCode    int                    `json:"status_code,omitempty"` // The http status code
-	Where         string                 `json:"-"`                     // The function where it happened in the form of Struct.Func
-	IsOAuth       bool                   `json:"is_oauth,omitempty"`    // Whether the error is OAuth specific
-	params        map[string]interface{} `json:"-"`
+	Id            string `json:"id"`
+	Message       string `json:"message"`               // Message to be display to the end user without debugging information
+	DetailedError string `json:"detailed_error"`        // Internal error string to help the developer
+	RequestId     string `json:"request_id,omitempty"`  // The RequestId that's also set in the header
+	StatusCode    int    `json:"status_code,omitempty"` // The http status code
+	Where         string `json:"-"`                     // The function where it happened in the form of Struct.Func
+	IsOAuth       bool   `json:"is_oauth,omitempty"`    // Whether the error is OAuth specific
+	params        map[string]interface{}
 }
 
 func (er *AppError) Error() string {
@@ -93,6 +93,18 @@ func AppErrorFromJson(data io.Reader) *AppError {
 	}
 }
 
+func NewAppError(where string, id string, params map[string]interface{}, details string, status int) *AppError {
+	ap := &AppError{}
+	ap.Id = id
+	ap.params = params
+	ap.Message = id
+	ap.Where = where
+	ap.DetailedError = details
+	ap.StatusCode = status
+	ap.IsOAuth = false
+	return ap
+}
+
 func NewLocAppError(where string, id string, params map[string]interface{}, details string) *AppError {
 	ap := &AppError{}
 	ap.Id = id
@@ -268,7 +280,7 @@ func IsValidChannelIdentifier(s string) bool {
 		return false
 	}
 
-	if len(s) < 2 {
+	if len(s) < CHANNEL_NAME_MIN_LENGTH {
 		return false
 	}
 
@@ -370,7 +382,7 @@ func ClearMentionTags(post string) string {
 var UrlRegex = regexp.MustCompile(`^((?:[a-z]+:\/\/)?(?:(?:[a-z0-9\-]+\.)+(?:[a-z]{2}|aero|arpa|biz|com|coop|edu|gov|info|int|jobs|mil|museum|name|nato|net|org|pro|travel|local|internal))(:[0-9]{1,5})?(?:\/[a-z0-9_\-\.~]+)*(\/([a-z0-9_\-\.]*)(?:\?[a-z0-9+_~\-\.%=&amp;]*)?)?(?:#[a-zA-Z0-9!$&'()*+.=-_~:@/?]*)?)(?:\s+|$)$`)
 var PartialUrlRegex = regexp.MustCompile(`/([A-Za-z0-9]{26})/([A-Za-z0-9]{26})/((?:[A-Za-z0-9]{26})?.+(?:\.[A-Za-z0-9]{3,})?)`)
 
-var SplitRunes = map[rune]bool{',': true, ' ': true, '.': true, '!': true, '?': true, ':': true, ';': true, '\n': true, '<': true, '>': true, '(': true, ')': true, '{': true, '}': true, '[': true, ']': true, '+': true, '/': true, '\\': true}
+var SplitRunes = map[rune]bool{',': true, ' ': true, '.': true, '!': true, '?': true, ':': true, ';': true, '\n': true, '<': true, '>': true, '(': true, ')': true, '{': true, '}': true, '[': true, ']': true, '+': true, '/': true, '\\': true, '^': true, '#': true, '$': true, '&': true}
 
 func IsValidHttpUrl(rawUrl string) bool {
 	if strings.Index(rawUrl, "http://") != 0 && strings.Index(rawUrl, "https://") != 0 {

vendor/github.com/mattermost/platform/model/version.go

@@ -13,6 +13,7 @@ import (
 // It should be maitained in chronological order with most current
 // release at the front of the list.
 var versions = []string{
+	"3.7.0",
 	"3.6.0",
 	"3.5.0",
 	"3.4.0",

vendor/github.com/mattermost/platform/model/websocket_client.go

@@ -8,6 +8,10 @@ import (
 	"github.com/gorilla/websocket"
 )
 
+const (
+	SOCKET_MAX_MESSAGE_SIZE_KB = 8 * 1024 // 8KB
+)
+
 type WebSocketClient struct {
 	Url             string          // The location of the server like "ws://localhost:8065"
 	ApiUrl          string          // The api location of the server like "ws://localhost:8065/api/v3"
@@ -22,14 +26,14 @@ type WebSocketClient struct {
 // NewWebSocketClient constructs a new WebSocket client with convienence
 // methods for talking to the server.
 func NewWebSocketClient(url, authToken string) (*WebSocketClient, *AppError) {
-	conn, _, err := websocket.DefaultDialer.Dial(url+API_URL_SUFFIX+"/users/websocket", nil)
+	conn, _, err := websocket.DefaultDialer.Dial(url+API_URL_SUFFIX_V3+"/users/websocket", nil)
 	if err != nil {
 		return nil, NewLocAppError("NewWebSocketClient", "model.websocket_client.connect_fail.app_error", nil, err.Error())
 	}
 
 	client := &WebSocketClient{
 		url,
-		url + API_URL_SUFFIX,
+		url + API_URL_SUFFIX_V3,
 		conn,
 		authToken,
 		1,

vendor/github.com/mattermost/platform/model/websocket_message.go

@@ -14,8 +14,9 @@ const (
 	WEBSOCKET_EVENT_POST_EDITED        = "post_edited"
 	WEBSOCKET_EVENT_POST_DELETED       = "post_deleted"
 	WEBSOCKET_EVENT_CHANNEL_DELETED    = "channel_deleted"
-	WEBSOCKET_EVENT_CHANNEL_VIEWED     = "channel_viewed"
+	WEBSOCKET_EVENT_CHANNEL_CREATED    = "channel_created"
 	WEBSOCKET_EVENT_DIRECT_ADDED       = "direct_added"
+	WEBSOCKET_EVENT_GROUP_ADDED        = "group_added"
 	WEBSOCKET_EVENT_NEW_USER           = "new_user"
 	WEBSOCKET_EVENT_LEAVE_TEAM         = "leave_team"
 	WEBSOCKET_EVENT_UPDATE_TEAM        = "update_team"

vendor/github.com/mattermost/platform/vendor/github.com/alecthomas/log4go/LICENSE.txt

@@ -0,0 +1,897 @@
+Mattermost Licensing
+
+SOFTWARE LICENSING 
+
+You are licensed to use compiled versions of the Mattermost platform produced by Mattermost, Inc. under an MIT LICENSE 
+
+-	See MIT-COMPILED-LICENSE.md included in compiled versions for details
+
+You may be licensed to use source code to create compiled versions not produced by Mattermost, Inc. in one of two ways:
+
+1. Under the Free Software Foundation’s GNU AGPL v.3.0, subject to the exceptions outlined in this policy; or 
+2. Under a commercial license available from Mattermost, Inc. by contacting commercial@mattermost.com 
+
+You are licensed to use the source code in Admin Tools and Configuration Files (templates/, config/, model/, 
+webapp/client, webapp/fonts, webapp/i18n, webapp/images and all subdirectories thereof) under the Apache License v2.0.
+
+We promise that we will not enforce the copyleft provisions in AGPL v3.0 against you if your application (a) does not 
+link to the Mattermost Platform directly, but exclusively uses the Mattermost Admin Tools and Configuration Files, and
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+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
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+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
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+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
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+holder fails to notify you of the violation by some reasonable means
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+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
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+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
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+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
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+propagate that work, subject to this License.  You are not responsible
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+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
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+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
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+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
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+
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+patent license under the contributor's essential patent claims, to
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+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
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+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
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+receiving the covered work authorizing them to use, propagate, modify
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+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Remote Network Interaction; Use with the GNU General Public License.
+
+  Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your version
+supports such interaction) an opportunity to receive the Corresponding
+Source of your version by providing access to the Corresponding Source
+from a network server at no charge, through some standard or customary
+means of facilitating copying of software.  This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time.  Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
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+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
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+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
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+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<http://www.gnu.org/licenses/>.

vendor/github.com/mattermost/platform/vendor/github.com/alecthomas/log4go/config.go

@@ -0,0 +1,288 @@
+// Copyright (C) 2010, Kyle Lemons <kyle@kylelemons.net>.  All rights reserved.
+
+package log4go
+
+import (
+	"encoding/xml"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strconv"
+	"strings"
+)
+
+type xmlProperty struct {
+	Name  string `xml:"name,attr"`
+	Value string `xml:",chardata"`
+}
+
+type xmlFilter struct {
+	Enabled  string        `xml:"enabled,attr"`
+	Tag      string        `xml:"tag"`
+	Level    string        `xml:"level"`
+	Type     string        `xml:"type"`
+	Property []xmlProperty `xml:"property"`
+}
+
+type xmlLoggerConfig struct {
+	Filter []xmlFilter `xml:"filter"`
+}
+
+// Load XML configuration; see examples/example.xml for documentation
+func (log Logger) LoadConfiguration(filename string) {
+	log.Close()
+
+	// Open the configuration file
+	fd, err := os.Open(filename)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "LoadConfiguration: Error: Could not open %q for reading: %s\n", filename, err)
+		os.Exit(1)
+	}
+
+	contents, err := ioutil.ReadAll(fd)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "LoadConfiguration: Error: Could not read %q: %s\n", filename, err)
+		os.Exit(1)
+	}
+
+	xc := new(xmlLoggerConfig)
+	if err := xml.Unmarshal(contents, xc); err != nil {
+		fmt.Fprintf(os.Stderr, "LoadConfiguration: Error: Could not parse XML configuration in %q: %s\n", filename, err)
+		os.Exit(1)
+	}
+
+	for _, xmlfilt := range xc.Filter {
+		var filt LogWriter
+		var lvl Level
+		bad, good, enabled := false, true, false
+
+		// Check required children
+		if len(xmlfilt.Enabled) == 0 {
+			fmt.Fprintf(os.Stderr, "LoadConfiguration: Error: Required attribute %s for filter missing in %s\n", "enabled", filename)
+			bad = true
+		} else {
+			enabled = xmlfilt.Enabled != "false"
+		}
+		if len(xmlfilt.Tag) == 0 {
+			fmt.Fprintf(os.Stderr, "LoadConfiguration: Error: Required child <%s> for filter missing in %s\n", "tag", filename)
+			bad = true
+		}
+		if len(xmlfilt.Type) == 0 {
+			fmt.Fprintf(os.Stderr, "LoadConfiguration: Error: Required child <%s> for filter missing in %s\n", "type", filename)
+			bad = true
+		}
+		if len(xmlfilt.Level) == 0 {
+			fmt.Fprintf(os.Stderr, "LoadConfiguration: Error: Required child <%s> for filter missing in %s\n", "level", filename)
+			bad = true
+		}
+
+		switch xmlfilt.Level {
+		case "FINEST":
+			lvl = FINEST
+		case "FINE":
+			lvl = FINE
+		case "DEBUG":
+			lvl = DEBUG
+		case "TRACE":
+			lvl = TRACE
+		case "INFO":
+			lvl = INFO
+		case "WARNING":
+			lvl = WARNING
+		case "ERROR":
+			lvl = ERROR
+		case "CRITICAL":
+			lvl = CRITICAL
+		default:
+			fmt.Fprintf(os.Stderr, "LoadConfiguration: Error: Required child <%s> for filter has unknown value in %s: %s\n", "level", filename, xmlfilt.Level)
+			bad = true
+		}
+
+		// Just so all of the required attributes are errored at the same time if missing
+		if bad {
+			os.Exit(1)
+		}
+
+		switch xmlfilt.Type {
+		case "console":
+			filt, good = xmlToConsoleLogWriter(filename, xmlfilt.Property, enabled)
+		case "file":
+			filt, good = xmlToFileLogWriter(filename, xmlfilt.Property, enabled)
+		case "xml":
+			filt, good = xmlToXMLLogWriter(filename, xmlfilt.Property, enabled)
+		case "socket":
+			filt, good = xmlToSocketLogWriter(filename, xmlfilt.Property, enabled)
+		default:
+			fmt.Fprintf(os.Stderr, "LoadConfiguration: Error: Could not load XML configuration in %s: unknown filter type \"%s\"\n", filename, xmlfilt.Type)
+			os.Exit(1)
+		}
+
+		// Just so all of the required params are errored at the same time if wrong
+		if !good {
+			os.Exit(1)
+		}
+
+		// If we're disabled (syntax and correctness checks only), don't add to logger
+		if !enabled {
+			continue
+		}
+
+		log[xmlfilt.Tag] = &Filter{lvl, filt}
+	}
+}
+
+func xmlToConsoleLogWriter(filename string, props []xmlProperty, enabled bool) (*ConsoleLogWriter, bool) {
+	// Parse properties
+	for _, prop := range props {
+		switch prop.Name {
+		default:
+			fmt.Fprintf(os.Stderr, "LoadConfiguration: Warning: Unknown property \"%s\" for console filter in %s\n", prop.Name, filename)
+		}
+	}
+
+	// If it's disabled, we're just checking syntax
+	if !enabled {
+		return nil, true
+	}
+
+	return NewConsoleLogWriter(), true
+}
+
+// Parse a number with K/M/G suffixes based on thousands (1000) or 2^10 (1024)
+func strToNumSuffix(str string, mult int) int {
+	num := 1
+	if len(str) > 1 {
+		switch str[len(str)-1] {
+		case 'G', 'g':
+			num *= mult
+			fallthrough
+		case 'M', 'm':
+			num *= mult
+			fallthrough
+		case 'K', 'k':
+			num *= mult
+			str = str[0 : len(str)-1]
+		}
+	}
+	parsed, _ := strconv.Atoi(str)
+	return parsed * num
+}
+func xmlToFileLogWriter(filename string, props []xmlProperty, enabled bool) (*FileLogWriter, bool) {
+	file := ""
+	format := "[%D %T] [%L] (%S) %M"
+	maxlines := 0
+	maxsize := 0
+	daily := false
+	rotate := false
+
+	// Parse properties
+	for _, prop := range props {
+		switch prop.Name {
+		case "filename":
+			file = strings.Trim(prop.Value, " \r\n")
+		case "format":
+			format = strings.Trim(prop.Value, " \r\n")
+		case "maxlines":
+			maxlines = strToNumSuffix(strings.Trim(prop.Value, " \r\n"), 1000)
+		case "maxsize":
+			maxsize = strToNumSuffix(strings.Trim(prop.Value, " \r\n"), 1024)
+		case "daily":
+			daily = strings.Trim(prop.Value, " \r\n") != "false"
+		case "rotate":
+			rotate = strings.Trim(prop.Value, " \r\n") != "false"
+		default:
+			fmt.Fprintf(os.Stderr, "LoadConfiguration: Warning: Unknown property \"%s\" for file filter in %s\n", prop.Name, filename)
+		}
+	}
+
+	// Check properties
+	if len(file) == 0 {
+		fmt.Fprintf(os.Stderr, "LoadConfiguration: Error: Required property \"%s\" for file filter missing in %s\n", "filename", filename)
+		return nil, false
+	}
+
+	// If it's disabled, we're just checking syntax
+	if !enabled {
+		return nil, true
+	}
+
+	flw := NewFileLogWriter(file, rotate)
+	flw.SetFormat(format)
+	flw.SetRotateLines(maxlines)
+	flw.SetRotateSize(maxsize)
+	flw.SetRotateDaily(daily)
+	return flw, true
+}
+
+func xmlToXMLLogWriter(filename string, props []xmlProperty, enabled bool) (*FileLogWriter, bool) {
+	file := ""
+	maxrecords := 0
+	maxsize := 0
+	daily := false
+	rotate := false
+
+	// Parse properties
+	for _, prop := range props {
+		switch prop.Name {
+		case "filename":
+			file = strings.Trim(prop.Value, " \r\n")
+		case "maxrecords":
+			maxrecords = strToNumSuffix(strings.Trim(prop.Value, " \r\n"), 1000)
+		case "maxsize":
+			maxsize = strToNumSuffix(strings.Trim(prop.Value, " \r\n"), 1024)
+		case "daily":
+			daily = strings.Trim(prop.Value, " \r\n") != "false"
+		case "rotate":
+			rotate = strings.Trim(prop.Value, " \r\n") != "false"
+		default:
+			fmt.Fprintf(os.Stderr, "LoadConfiguration: Warning: Unknown property \"%s\" for xml filter in %s\n", prop.Name, filename)
+		}
+	}
+
+	// Check properties
+	if len(file) == 0 {
+		fmt.Fprintf(os.Stderr, "LoadConfiguration: Error: Required property \"%s\" for xml filter missing in %s\n", "filename", filename)
+		return nil, false
+	}
+
+	// If it's disabled, we're just checking syntax
+	if !enabled {
+		return nil, true
+	}
+
+	xlw := NewXMLLogWriter(file, rotate)
+	xlw.SetRotateLines(maxrecords)
+	xlw.SetRotateSize(maxsize)
+	xlw.SetRotateDaily(daily)
+	return xlw, true
+}
+
+func xmlToSocketLogWriter(filename string, props []xmlProperty, enabled bool) (SocketLogWriter, bool) {
+	endpoint := ""
+	protocol := "udp"
+
+	// Parse properties
+	for _, prop := range props {
+		switch prop.Name {
+		case "endpoint":
+			endpoint = strings.Trim(prop.Value, " \r\n")
+		case "protocol":
+			protocol = strings.Trim(prop.Value, " \r\n")
+		default:
+			fmt.Fprintf(os.Stderr, "LoadConfiguration: Warning: Unknown property \"%s\" for file filter in %s\n", prop.Name, filename)
+		}
+	}
+
+	// Check properties
+	if len(endpoint) == 0 {
+		fmt.Fprintf(os.Stderr, "LoadConfiguration: Error: Required property \"%s\" for file filter missing in %s\n", "endpoint", filename)
+		return nil, false
+	}
+
+	// If it's disabled, we're just checking syntax
+	if !enabled {
+		return nil, true
+	}
+
+	return NewSocketLogWriter(protocol, endpoint), true
+}

vendor/github.com/mattermost/platform/vendor/github.com/alecthomas/log4go/examples/ConsoleLogWriter_Manual.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+	"time"
+)
+
+import l4g "code.google.com/p/log4go"
+
+func main() {
+	log := l4g.NewLogger()
+	defer log.Close()
+	log.AddFilter("stdout", l4g.DEBUG, l4g.NewConsoleLogWriter())
+	log.Info("The time is now: %s", time.Now().Format("15:04:05 MST 2006/01/02"))
+}

vendor/github.com/mattermost/platform/vendor/github.com/alecthomas/log4go/examples/FileLogWriter_Manual.go

@@ -0,0 +1,57 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"os"
+	"time"
+)
+
+import l4g "code.google.com/p/log4go"
+
+const (
+	filename = "flw.log"
+)
+
+func main() {
+	// Get a new logger instance
+	log := l4g.NewLogger()
+
+	// Create a default logger that is logging messages of FINE or higher
+	log.AddFilter("file", l4g.FINE, l4g.NewFileLogWriter(filename, false))
+	log.Close()
+
+	/* Can also specify manually via the following: (these are the defaults) */
+	flw := l4g.NewFileLogWriter(filename, false)
+	flw.SetFormat("[%D %T] [%L] (%S) %M")
+	flw.SetRotate(false)
+	flw.SetRotateSize(0)
+	flw.SetRotateLines(0)
+	flw.SetRotateDaily(false)
+	log.AddFilter("file", l4g.FINE, flw)
+
+	// Log some experimental messages
+	log.Finest("Everything is created now (notice that I will not be printing to the file)")
+	log.Info("The time is now: %s", time.Now().Format("15:04:05 MST 2006/01/02"))
+	log.Critical("Time to close out!")
+
+	// Close the log
+	log.Close()
+
+	// Print what was logged to the file (yes, I know I'm skipping error checking)
+	fd, _ := os.Open(filename)
+	in := bufio.NewReader(fd)
+	fmt.Print("Messages logged to file were: (line numbers not included)\n")
+	for lineno := 1; ; lineno++ {
+		line, err := in.ReadString('\n')
+		if err == io.EOF {
+			break
+		}
+		fmt.Printf("%3d:\t%s", lineno, line)
+	}
+	fd.Close()
+
+	// Remove the file so it's not lying around
+	os.Remove(filename)
+}

vendor/github.com/mattermost/platform/vendor/github.com/alecthomas/log4go/examples/SimpleNetLogServer.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"net"
+	"os"
+)
+
+var (
+	port = flag.String("p", "12124", "Port number to listen on")
+)
+
+func e(err error) {
+	if err != nil {
+		fmt.Printf("Erroring out: %s\n", err)
+		os.Exit(1)
+	}
+}
+
+func main() {
+	flag.Parse()
+
+	// Bind to the port
+	bind, err := net.ResolveUDPAddr("0.0.0.0:" + *port)
+	e(err)
+
+	// Create listener
+	listener, err := net.ListenUDP("udp", bind)
+	e(err)
+
+	fmt.Printf("Listening to port %s...\n", *port)
+	for {
+		// read into a new buffer
+		buffer := make([]byte, 1024)
+		_, _, err := listener.ReadFrom(buffer)
+		e(err)
+
+		// log to standard output
+		fmt.Println(string(buffer))
+	}
+}

vendor/github.com/mattermost/platform/vendor/github.com/alecthomas/log4go/examples/SocketLogWriter_Manual.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"time"
+)
+
+import l4g "code.google.com/p/log4go"
+
+func main() {
+	log := l4g.NewLogger()
+	log.AddFilter("network", l4g.FINEST, l4g.NewSocketLogWriter("udp", "192.168.1.255:12124"))
+
+	// Run `nc -u -l -p 12124` or similar before you run this to see the following message
+	log.Info("The time is now: %s", time.Now().Format("15:04:05 MST 2006/01/02"))
+
+	// This makes sure the output stream buffer is written
+	log.Close()
+}

vendor/github.com/mattermost/platform/vendor/github.com/alecthomas/log4go/examples/XMLConfigurationExample.go

@@ -0,0 +1,13 @@
+package main
+
+import l4g "code.google.com/p/log4go"
+
+func main() {
+	// Load the configuration (isn't this easy?)
+	l4g.LoadConfiguration("example.xml")
+
+	// And now we're ready!
+	l4g.Finest("This will only go to those of you really cool UDP kids!  If you change enabled=true.")
+	l4g.Debug("Oh no!  %d + %d = %d!", 2, 2, 2+2)
+	l4g.Info("About that time, eh chaps?")
+}

vendor/github.com/mattermost/platform/vendor/github.com/alecthomas/log4go/filelog.go

@@ -0,0 +1,264 @@
+// Copyright (C) 2010, Kyle Lemons <kyle@kylelemons.net>.  All rights reserved.
+
+package log4go
+
+import (
+	"fmt"
+	"os"
+	"time"
+)
+
+// This log writer sends output to a file
+type FileLogWriter struct {
+	rec chan *LogRecord
+	rot chan bool
+
+	// The opened file
+	filename string
+	file     *os.File
+
+	// The logging format
+	format string
+
+	// File header/trailer
+	header, trailer string
+
+	// Rotate at linecount
+	maxlines          int
+	maxlines_curlines int
+
+	// Rotate at size
+	maxsize         int
+	maxsize_cursize int
+
+	// Rotate daily
+	daily          bool
+	daily_opendate int
+
+	// Keep old logfiles (.001, .002, etc)
+	rotate    bool
+	maxbackup int
+}
+
+// This is the FileLogWriter's output method
+func (w *FileLogWriter) LogWrite(rec *LogRecord) {
+	w.rec <- rec
+}
+
+func (w *FileLogWriter) Close() {
+	close(w.rec)
+	w.file.Sync()
+}
+
+// NewFileLogWriter creates a new LogWriter which writes to the given file and
+// has rotation enabled if rotate is true.
+//
+// If rotate is true, any time a new log file is opened, the old one is renamed
+// with a .### extension to preserve it.  The various Set* methods can be used
+// to configure log rotation based on lines, size, and daily.
+//
+// The standard log-line format is:
+//   [%D %T] [%L] (%S) %M
+func NewFileLogWriter(fname string, rotate bool) *FileLogWriter {
+	w := &FileLogWriter{
+		rec:       make(chan *LogRecord, LogBufferLength),
+		rot:       make(chan bool),
+		filename:  fname,
+		format:    "[%D %T] [%L] (%S) %M",
+		rotate:    rotate,
+		maxbackup: 999,
+	}
+
+	// open the file for the first time
+	if err := w.intRotate(); err != nil {
+		fmt.Fprintf(os.Stderr, "FileLogWriter(%q): %s\n", w.filename, err)
+		return nil
+	}
+
+	go func() {
+		defer func() {
+			if w.file != nil {
+				fmt.Fprint(w.file, FormatLogRecord(w.trailer, &LogRecord{Created: time.Now()}))
+				w.file.Close()
+			}
+		}()
+
+		for {
+			select {
+			case <-w.rot:
+				if err := w.intRotate(); err != nil {
+					fmt.Fprintf(os.Stderr, "FileLogWriter(%q): %s\n", w.filename, err)
+					return
+				}
+			case rec, ok := <-w.rec:
+				if !ok {
+					return
+				}
+				now := time.Now()
+				if (w.maxlines > 0 && w.maxlines_curlines >= w.maxlines) ||
+					(w.maxsize > 0 && w.maxsize_cursize >= w.maxsize) ||
+					(w.daily && now.Day() != w.daily_opendate) {
+					if err := w.intRotate(); err != nil {
+						fmt.Fprintf(os.Stderr, "FileLogWriter(%q): %s\n", w.filename, err)
+						return
+					}
+				}
+
+				// Perform the write
+				n, err := fmt.Fprint(w.file, FormatLogRecord(w.format, rec))
+				if err != nil {
+					fmt.Fprintf(os.Stderr, "FileLogWriter(%q): %s\n", w.filename, err)
+					return
+				}
+
+				// Update the counts
+				w.maxlines_curlines++
+				w.maxsize_cursize += n
+			}
+		}
+	}()
+
+	return w
+}
+
+// Request that the logs rotate
+func (w *FileLogWriter) Rotate() {
+	w.rot <- true
+}
+
+// If this is called in a threaded context, it MUST be synchronized
+func (w *FileLogWriter) intRotate() error {
+	// Close any log file that may be open
+	if w.file != nil {
+		fmt.Fprint(w.file, FormatLogRecord(w.trailer, &LogRecord{Created: time.Now()}))
+		w.file.Close()
+	}
+
+	// If we are keeping log files, move it to the next available number
+	if w.rotate {
+		_, err := os.Lstat(w.filename)
+		if err == nil { // file exists
+			// Find the next available number
+			num := 1
+			fname := ""
+			if w.daily && time.Now().Day() != w.daily_opendate {
+				yesterday := time.Now().AddDate(0, 0, -1).Format("2006-01-02")
+
+				for ; err == nil && num <= 999; num++ {
+					fname = w.filename + fmt.Sprintf(".%s.%03d", yesterday, num)
+					_, err = os.Lstat(fname)
+				}
+				// return error if the last file checked still existed
+				if err == nil {
+					return fmt.Errorf("Rotate: Cannot find free log number to rename %s\n", w.filename)
+				}
+			} else {
+				num = w.maxbackup - 1
+				for ; num >= 1; num-- {
+					fname = w.filename + fmt.Sprintf(".%d", num)
+					nfname := w.filename + fmt.Sprintf(".%d", num+1)
+					_, err = os.Lstat(fname)
+					if err == nil {
+						os.Rename(fname, nfname)
+					}
+				}
+			}
+
+			w.file.Close()
+			// Rename the file to its newfound home
+			err = os.Rename(w.filename, fname)
+			if err != nil {
+				return fmt.Errorf("Rotate: %s\n", err)
+			}
+		}
+	}
+
+	// Open the log file
+	fd, err := os.OpenFile(w.filename, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0660)
+	if err != nil {
+		return err
+	}
+	w.file = fd
+
+	now := time.Now()
+	fmt.Fprint(w.file, FormatLogRecord(w.header, &LogRecord{Created: now}))
+
+	// Set the daily open date to the current date
+	w.daily_opendate = now.Day()
+
+	// initialize rotation values
+	w.maxlines_curlines = 0
+	w.maxsize_cursize = 0
+
+	return nil
+}
+
+// Set the logging format (chainable).  Must be called before the first log
+// message is written.
+func (w *FileLogWriter) SetFormat(format string) *FileLogWriter {
+	w.format = format
+	return w
+}
+
+// Set the logfile header and footer (chainable).  Must be called before the first log
+// message is written.  These are formatted similar to the FormatLogRecord (e.g.
+// you can use %D and %T in your header/footer for date and time).
+func (w *FileLogWriter) SetHeadFoot(head, foot string) *FileLogWriter {
+	w.header, w.trailer = head, foot
+	if w.maxlines_curlines == 0 {
+		fmt.Fprint(w.file, FormatLogRecord(w.header, &LogRecord{Created: time.Now()}))
+	}
+	return w
+}
+
+// Set rotate at linecount (chainable). Must be called before the first log
+// message is written.
+func (w *FileLogWriter) SetRotateLines(maxlines int) *FileLogWriter {
+	//fmt.Fprintf(os.Stderr, "FileLogWriter.SetRotateLines: %v\n", maxlines)
+	w.maxlines = maxlines
+	return w
+}
+
+// Set rotate at size (chainable). Must be called before the first log message
+// is written.
+func (w *FileLogWriter) SetRotateSize(maxsize int) *FileLogWriter {
+	//fmt.Fprintf(os.Stderr, "FileLogWriter.SetRotateSize: %v\n", maxsize)
+	w.maxsize = maxsize
+	return w
+}
+
+// Set rotate daily (chainable). Must be called before the first log message is
+// written.
+func (w *FileLogWriter) SetRotateDaily(daily bool) *FileLogWriter {
+	//fmt.Fprintf(os.Stderr, "FileLogWriter.SetRotateDaily: %v\n", daily)
+	w.daily = daily
+	return w
+}
+
+// Set max backup files. Must be called before the first log message
+// is written.
+func (w *FileLogWriter) SetRotateMaxBackup(maxbackup int) *FileLogWriter {
+	w.maxbackup = maxbackup
+	return w
+}
+
+// SetRotate changes whether or not the old logs are kept. (chainable) Must be
+// called before the first log message is written.  If rotate is false, the
+// files are overwritten; otherwise, they are rotated to another file before the
+// new log is opened.
+func (w *FileLogWriter) SetRotate(rotate bool) *FileLogWriter {
+	//fmt.Fprintf(os.Stderr, "FileLogWriter.SetRotate: %v\n", rotate)
+	w.rotate = rotate
+	return w
+}
+
+// NewXMLLogWriter is a utility method for creating a FileLogWriter set up to
+// output XML record log messages instead of line-based ones.
+func NewXMLLogWriter(fname string, rotate bool) *FileLogWriter {
+	return NewFileLogWriter(fname, rotate).SetFormat(
+		`	<record level="%L">
+		<timestamp>%D %T</timestamp>
+		<source>%S</source>
+		<message>%M</message>
+	</record>`).SetHeadFoot("<log created=\"%D %T\">", "</log>")
+}

vendor/github.com/mattermost/platform/vendor/github.com/alecthomas/log4go/log4go.go

@@ -0,0 +1,484 @@
+// Copyright (C) 2010, Kyle Lemons <kyle@kylelemons.net>.  All rights reserved.
+
+// Package log4go provides level-based and highly configurable logging.
+//
+// Enhanced Logging
+//
+// This is inspired by the logging functionality in Java.  Essentially, you create a Logger
+// object and create output filters for it.  You can send whatever you want to the Logger,
+// and it will filter that based on your settings and send it to the outputs.  This way, you
+// can put as much debug code in your program as you want, and when you're done you can filter
+// out the mundane messages so only the important ones show up.
+//
+// Utility functions are provided to make life easier. Here is some example code to get started:
+//
+// log := log4go.NewLogger()
+// log.AddFilter("stdout", log4go.DEBUG, log4go.NewConsoleLogWriter())
+// log.AddFilter("log",    log4go.FINE,  log4go.NewFileLogWriter("example.log", true))
+// log.Info("The time is now: %s", time.LocalTime().Format("15:04:05 MST 2006/01/02"))
+//
+// The first two lines can be combined with the utility NewDefaultLogger:
+//
+// log := log4go.NewDefaultLogger(log4go.DEBUG)
+// log.AddFilter("log",    log4go.FINE,  log4go.NewFileLogWriter("example.log", true))
+// log.Info("The time is now: %s", time.LocalTime().Format("15:04:05 MST 2006/01/02"))
+//
+// Usage notes:
+// - The ConsoleLogWriter does not display the source of the message to standard
+//   output, but the FileLogWriter does.
+// - The utility functions (Info, Debug, Warn, etc) derive their source from the
+//   calling function, and this incurs extra overhead.
+//
+// Changes from 2.0:
+// - The external interface has remained mostly stable, but a lot of the
+//   internals have been changed, so if you depended on any of this or created
+//   your own LogWriter, then you will probably have to update your code.  In
+//   particular, Logger is now a map and ConsoleLogWriter is now a channel
+//   behind-the-scenes, and the LogWrite method no longer has return values.
+//
+// Future work: (please let me know if you think I should work on any of these particularly)
+// - Log file rotation
+// - Logging configuration files ala log4j
+// - Have the ability to remove filters?
+// - Have GetInfoChannel, GetDebugChannel, etc return a chan string that allows
+//   for another method of logging
+// - Add an XML filter type
+package log4go
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"runtime"
+	"strings"
+	"time"
+)
+
+// Version information
+const (
+	L4G_VERSION = "log4go-v3.0.1"
+	L4G_MAJOR   = 3
+	L4G_MINOR   = 0
+	L4G_BUILD   = 1
+)
+
+/****** Constants ******/
+
+// These are the integer logging levels used by the logger
+type Level int
+
+const (
+	FINEST Level = iota
+	FINE
+	DEBUG
+	TRACE
+	INFO
+	WARNING
+	ERROR
+	CRITICAL
+)
+
+// Logging level strings
+var (
+	levelStrings = [...]string{"FNST", "FINE", "DEBG", "TRAC", "INFO", "WARN", "EROR", "CRIT"}
+)
+
+func (l Level) String() string {
+	if l < 0 || int(l) > len(levelStrings) {
+		return "UNKNOWN"
+	}
+	return levelStrings[int(l)]
+}
+
+/****** Variables ******/
+var (
+	// LogBufferLength specifies how many log messages a particular log4go
+	// logger can buffer at a time before writing them.
+	LogBufferLength = 32
+)
+
+/****** LogRecord ******/
+
+// A LogRecord contains all of the pertinent information for each message
+type LogRecord struct {
+	Level   Level     // The log level
+	Created time.Time // The time at which the log message was created (nanoseconds)
+	Source  string    // The message source
+	Message string    // The log message
+}
+
+/****** LogWriter ******/
+
+// This is an interface for anything that should be able to write logs
+type LogWriter interface {
+	// This will be called to log a LogRecord message.
+	LogWrite(rec *LogRecord)
+
+	// This should clean up anything lingering about the LogWriter, as it is called before
+	// the LogWriter is removed.  LogWrite should not be called after Close.
+	Close()
+}
+
+/****** Logger ******/
+
+// A Filter represents the log level below which no log records are written to
+// the associated LogWriter.
+type Filter struct {
+	Level Level
+	LogWriter
+}
+
+// A Logger represents a collection of Filters through which log messages are
+// written.
+type Logger map[string]*Filter
+
+// Create a new logger.
+//
+// DEPRECATED: Use make(Logger) instead.
+func NewLogger() Logger {
+	os.Stderr.WriteString("warning: use of deprecated NewLogger\n")
+	return make(Logger)
+}
+
+// Create a new logger with a "stdout" filter configured to send log messages at
+// or above lvl to standard output.
+//
+// DEPRECATED: use NewDefaultLogger instead.
+func NewConsoleLogger(lvl Level) Logger {
+	os.Stderr.WriteString("warning: use of deprecated NewConsoleLogger\n")
+	return Logger{
+		"stdout": &Filter{lvl, NewConsoleLogWriter()},
+	}
+}
+
+// Create a new logger with a "stdout" filter configured to send log messages at
+// or above lvl to standard output.
+func NewDefaultLogger(lvl Level) Logger {
+	return Logger{
+		"stdout": &Filter{lvl, NewConsoleLogWriter()},
+	}
+}
+
+// Closes all log writers in preparation for exiting the program or a
+// reconfiguration of logging.  Calling this is not really imperative, unless
+// you want to guarantee that all log messages are written.  Close removes
+// all filters (and thus all LogWriters) from the logger.
+func (log Logger) Close() {
+	// Close all open loggers
+	for name, filt := range log {
+		filt.Close()
+		delete(log, name)
+	}
+}
+
+// Add a new LogWriter to the Logger which will only log messages at lvl or
+// higher.  This function should not be called from multiple goroutines.
+// Returns the logger for chaining.
+func (log Logger) AddFilter(name string, lvl Level, writer LogWriter) Logger {
+	log[name] = &Filter{lvl, writer}
+	return log
+}
+
+/******* Logging *******/
+// Send a formatted log message internally
+func (log Logger) intLogf(lvl Level, format string, args ...interface{}) {
+	skip := true
+
+	// Determine if any logging will be done
+	for _, filt := range log {
+		if lvl >= filt.Level {
+			skip = false
+			break
+		}
+	}
+	if skip {
+		return
+	}
+
+	// Determine caller func
+	pc, _, lineno, ok := runtime.Caller(2)
+	src := ""
+	if ok {
+		src = fmt.Sprintf("%s:%d", runtime.FuncForPC(pc).Name(), lineno)
+	}
+
+	msg := format
+	if len(args) > 0 {
+		msg = fmt.Sprintf(format, args...)
+	}
+
+	// Make the log record
+	rec := &LogRecord{
+		Level:   lvl,
+		Created: time.Now(),
+		Source:  src,
+		Message: msg,
+	}
+
+	// Dispatch the logs
+	for _, filt := range log {
+		if lvl < filt.Level {
+			continue
+		}
+		filt.LogWrite(rec)
+	}
+}
+
+// Send a closure log message internally
+func (log Logger) intLogc(lvl Level, closure func() string) {
+	skip := true
+
+	// Determine if any logging will be done
+	for _, filt := range log {
+		if lvl >= filt.Level {
+			skip = false
+			break
+		}
+	}
+	if skip {
+		return
+	}
+
+	// Determine caller func
+	pc, _, lineno, ok := runtime.Caller(2)
+	src := ""
+	if ok {
+		src = fmt.Sprintf("%s:%d", runtime.FuncForPC(pc).Name(), lineno)
+	}
+
+	// Make the log record
+	rec := &LogRecord{
+		Level:   lvl,
+		Created: time.Now(),
+		Source:  src,
+		Message: closure(),
+	}
+
+	// Dispatch the logs
+	for _, filt := range log {
+		if lvl < filt.Level {
+			continue
+		}
+		filt.LogWrite(rec)
+	}
+}
+
+// Send a log message with manual level, source, and message.
+func (log Logger) Log(lvl Level, source, message string) {
+	skip := true
+
+	// Determine if any logging will be done
+	for _, filt := range log {
+		if lvl >= filt.Level {
+			skip = false
+			break
+		}
+	}
+	if skip {
+		return
+	}
+
+	// Make the log record
+	rec := &LogRecord{
+		Level:   lvl,
+		Created: time.Now(),
+		Source:  source,
+		Message: message,
+	}
+
+	// Dispatch the logs
+	for _, filt := range log {
+		if lvl < filt.Level {
+			continue
+		}
+		filt.LogWrite(rec)
+	}
+}
+
+// Logf logs a formatted log message at the given log level, using the caller as
+// its source.
+func (log Logger) Logf(lvl Level, format string, args ...interface{}) {
+	log.intLogf(lvl, format, args...)
+}
+
+// Logc logs a string returned by the closure at the given log level, using the caller as
+// its source.  If no log message would be written, the closure is never called.
+func (log Logger) Logc(lvl Level, closure func() string) {
+	log.intLogc(lvl, closure)
+}
+
+// Finest logs a message at the finest log level.
+// See Debug for an explanation of the arguments.
+func (log Logger) Finest(arg0 interface{}, args ...interface{}) {
+	const (
+		lvl = FINEST
+	)
+	switch first := arg0.(type) {
+	case string:
+		// Use the string as a format string
+		log.intLogf(lvl, first, args...)
+	case func() string:
+		// Log the closure (no other arguments used)
+		log.intLogc(lvl, first)
+	default:
+		// Build a format string so that it will be similar to Sprint
+		log.intLogf(lvl, fmt.Sprint(arg0)+strings.Repeat(" %v", len(args)), args...)
+	}
+}
+
+// Fine logs a message at the fine log level.
+// See Debug for an explanation of the arguments.
+func (log Logger) Fine(arg0 interface{}, args ...interface{}) {
+	const (
+		lvl = FINE
+	)
+	switch first := arg0.(type) {
+	case string:
+		// Use the string as a format string
+		log.intLogf(lvl, first, args...)
+	case func() string:
+		// Log the closure (no other arguments used)
+		log.intLogc(lvl, first)
+	default:
+		// Build a format string so that it will be similar to Sprint
+		log.intLogf(lvl, fmt.Sprint(arg0)+strings.Repeat(" %v", len(args)), args...)
+	}
+}
+
+// Debug is a utility method for debug log messages.
+// The behavior of Debug depends on the first argument:
+// - arg0 is a string
+//   When given a string as the first argument, this behaves like Logf but with
+//   the DEBUG log level: the first argument is interpreted as a format for the
+//   latter arguments.
+// - arg0 is a func()string
+//   When given a closure of type func()string, this logs the string returned by
+//   the closure iff it will be logged.  The closure runs at most one time.
+// - arg0 is interface{}
+//   When given anything else, the log message will be each of the arguments
+//   formatted with %v and separated by spaces (ala Sprint).
+func (log Logger) Debug(arg0 interface{}, args ...interface{}) {
+	const (
+		lvl = DEBUG
+	)
+	switch first := arg0.(type) {
+	case string:
+		// Use the string as a format string
+		log.intLogf(lvl, first, args...)
+	case func() string:
+		// Log the closure (no other arguments used)
+		log.intLogc(lvl, first)
+	default:
+		// Build a format string so that it will be similar to Sprint
+		log.intLogf(lvl, fmt.Sprint(arg0)+strings.Repeat(" %v", len(args)), args...)
+	}
+}
+
+// Trace logs a message at the trace log level.
+// See Debug for an explanation of the arguments.
+func (log Logger) Trace(arg0 interface{}, args ...interface{}) {
+	const (
+		lvl = TRACE
+	)
+	switch first := arg0.(type) {
+	case string:
+		// Use the string as a format string
+		log.intLogf(lvl, first, args...)
+	case func() string:
+		// Log the closure (no other arguments used)
+		log.intLogc(lvl, first)
+	default:
+		// Build a format string so that it will be similar to Sprint
+		log.intLogf(lvl, fmt.Sprint(arg0)+strings.Repeat(" %v", len(args)), args...)
+	}
+}
+
+// Info logs a message at the info log level.
+// See Debug for an explanation of the arguments.
+func (log Logger) Info(arg0 interface{}, args ...interface{}) {
+	const (
+		lvl = INFO
+	)
+	switch first := arg0.(type) {
+	case string:
+		// Use the string as a format string
+		log.intLogf(lvl, first, args...)
+	case func() string:
+		// Log the closure (no other arguments used)
+		log.intLogc(lvl, first)
+	default:
+		// Build a format string so that it will be similar to Sprint
+		log.intLogf(lvl, fmt.Sprint(arg0)+strings.Repeat(" %v", len(args)), args...)
+	}
+}
+
+// Warn logs a message at the warning log level and returns the formatted error.
+// At the warning level and higher, there is no performance benefit if the
+// message is not actually logged, because all formats are processed and all
+// closures are executed to format the error message.
+// See Debug for further explanation of the arguments.
+func (log Logger) Warn(arg0 interface{}, args ...interface{}) error {
+	const (
+		lvl = WARNING
+	)
+	var msg string
+	switch first := arg0.(type) {
+	case string:
+		// Use the string as a format string
+		msg = fmt.Sprintf(first, args...)
+	case func() string:
+		// Log the closure (no other arguments used)
+		msg = first()
+	default:
+		// Build a format string so that it will be similar to Sprint
+		msg = fmt.Sprintf(fmt.Sprint(first)+strings.Repeat(" %v", len(args)), args...)
+	}
+	log.intLogf(lvl, msg)
+	return errors.New(msg)
+}
+
+// Error logs a message at the error log level and returns the formatted error,
+// See Warn for an explanation of the performance and Debug for an explanation
+// of the parameters.
+func (log Logger) Error(arg0 interface{}, args ...interface{}) error {
+	const (
+		lvl = ERROR
+	)
+	var msg string
+	switch first := arg0.(type) {
+	case string:
+		// Use the string as a format string
+		msg = fmt.Sprintf(first, args...)
+	case func() string:
+		// Log the closure (no other arguments used)
+		msg = first()
+	default:
+		// Build a format string so that it will be similar to Sprint
+		msg = fmt.Sprintf(fmt.Sprint(first)+strings.Repeat(" %v", len(args)), args...)
+	}
+	log.intLogf(lvl, msg)
+	return errors.New(msg)
+}
+
+// Critical logs a message at the critical log level and returns the formatted error,
+// See Warn for an explanation of the performance and Debug for an explanation
+// of the parameters.
+func (log Logger) Critical(arg0 interface{}, args ...interface{}) error {
+	const (
+		lvl = CRITICAL
+	)
+	var msg string
+	switch first := arg0.(type) {
+	case string:
+		// Use the string as a format string
+		msg = fmt.Sprintf(first, args...)
+	case func() string:
+		// Log the closure (no other arguments used)
+		msg = first()
+	default:
+		// Build a format string so that it will be similar to Sprint
+		msg = fmt.Sprintf(fmt.Sprint(first)+strings.Repeat(" %v", len(args)), args...)
+	}
+	log.intLogf(lvl, msg)
+	return errors.New(msg)
+}