Release v1.7.0

README.md

@@ -1,7 +1,7 @@
 # matterbridge
 Click on one of the badges below to join the chat   
 
-[![Gitter](https://img.shields.io/gitter/room/nwjs/nw.js.svg?colorB=42f4242)](https://gitter.im/42wim/matterbridge) [![Join the IRC chat at https://webchat.freenode.net/?channels=matterbridgechat](https://img.shields.io/badge/IRC-matterbridgechat-green.svg?colorB=42f4242)](https://webchat.freenode.net/?channels=matterbridgechat) [![Discord](https://img.shields.io/badge/discord-matterbridge-green.svg?colorB=42f4242)](https://discord.gg/AkKPtrQ) [![Matrix](https://img.shields.io/badge/matrix-matterbridge-green.svg?colorB=42f4242)](https://riot.im/app/#/room/#matterbridge:matrix.org) [![Slack](https://img.shields.io/badge/slack-matterbridgechat-green.svg?colorB=42f4242)](https://join.slack.com/matterbridgechat/shared_invite/MjEwODMxNjU1NDMwLTE0OTk2MTU3NTMtMzZkZmRiNDZhOA) [![Mattermost](https://img.shields.io/badge/mattermost-matterbridge-green.svg?colorB=42f4242)](https://framateam.org/signup_user_complete/?id=tfqm33ggop8x3qgu4boeieta6e) ![Xmpp](https://img.shields.io/badge/xmpp-matterbridge@muc.im.koderoot.net-green.svg?colorB=42f4242)
+[![Gitter](https://img.shields.io/gitter/room/nwjs/nw.js.svg?colorB=42f4242)](https://gitter.im/42wim/matterbridge) [![Join the IRC chat at https://webchat.freenode.net/?channels=matterbridgechat](https://img.shields.io/badge/IRC-matterbridgechat-green.svg?colorB=42f4242)](https://webchat.freenode.net/?channels=matterbridgechat) [![Discord](https://img.shields.io/badge/discord-matterbridge-green.svg?colorB=42f4242)](https://discord.gg/AkKPtrQ) [![Matrix](https://img.shields.io/badge/matrix-matterbridge-green.svg?colorB=42f4242)](https://riot.im/app/#/room/#matterbridge:matrix.org) [![Slack](https://img.shields.io/badge/slack-matterbridgechat-green.svg?colorB=42f4242)](https://join.slack.com/matterbridgechat/shared_invite/MjEwODMxNjU1NDMwLTE0OTk2MTU3NTMtMzZkZmRiNDZhOA) [![Mattermost](https://img.shields.io/badge/mattermost-matterbridge-green.svg?colorB=42f4242)](https://framateam.org/signup_user_complete/?id=tfqm33ggop8x3qgu4boeieta6e) [![Xmpp](https://img.shields.io/badge/xmpp-matterbridge@conference.jabber.de-green.svg?colorB=42f4242)](https://inverse.chat) [![Twitch](https://img.shields.io/badge/twitch-matterbridge-green.svg?colorB=42f4242)](https://www.twitch.tv/matterbridge)
 
 [![Download stable](https://img.shields.io/github/release/42wim/matterbridge.svg?label=download%20stable)](https://github.com/42wim/matterbridge/releases/latest) [![Download dev](https://img.shields.io/bintray/v/42wim/nightly/Matterbridge.svg?label=download%20dev&colorB=007ec6)](https://bintray.com/42wim/nightly/Matterbridge/_latestVersion)
 
@@ -48,13 +48,14 @@ Accounts to one of the supported bridges
 * [Rocket.chat](https://rocket.chat)
 * [Matrix](https://matrix.org)
 * [Steam](https://store.steampowered.com/)
+* [Twitch](https://twitch.tv)
 
 # Screenshots
 See https://github.com/42wim/matterbridge/wiki
 
 # Installing
 ## Binaries
-* Latest stable release [v1.6.0](https://github.com/42wim/matterbridge/releases/latest)
+* Latest stable release [v1.7.0](https://github.com/42wim/matterbridge/releases/latest)
 * Development releases (follows master) can be downloaded [here](https://dl.bintray.com/42wim/nightly/)  
 
 ## Building

bridge/bridge.go

@@ -88,6 +88,7 @@ func New(cfg *config.Config, bridge *config.Bridge, c chan config.Message) *Brid
 		bridgeConfig.Config = cfg.Api[name]
 		b.Bridger = api.New(bridgeConfig)
 	}
+	b.Config = bridgeConfig.Config
 	return b
 }
 

bridge/config/config.go

@@ -53,6 +53,7 @@ type Protocol struct {
 	BindAddress            string // mattermost, slack // DEPRECATED
 	Buffer                 int    // api
 	Charset                string // irc
+	Debug                  bool   // general
 	EditSuffix             string // mattermost, slack, discord, telegram, gitter
 	EditDisable            bool   // mattermost, slack, discord, telegram, gitter
 	IconURL                string // mattermost, slack

bridge/irc/irc.go

@@ -323,7 +323,7 @@ func (b *Birc) handlePrivMsg(client *girc.Client, event girc.Event) {
 	if event.Source.Name == b.Nick {
 		return
 	}
-	rmsg := config.Message{Username: event.Source.Name, Channel: event.Params[0], Account: b.Account, UserID: event.Source.Ident + "@" + event.Source.Host}
+	rmsg := config.Message{Username: event.Source.Name, Channel: strings.ToLower(event.Params[0]), Account: b.Account, UserID: event.Source.Ident + "@" + event.Source.Host}
 	flog.Debugf("handlePrivMsg() %s %s %#v", event.Source.Name, event.Trailing, event)
 	msg := ""
 	if event.IsAction() {

bridge/matrix/matrix.go

@@ -10,7 +10,7 @@ import (
 	"github.com/42wim/matterbridge/bridge/config"
 	"github.com/42wim/matterbridge/bridge/helper"
 	log "github.com/Sirupsen/logrus"
-	matrix "github.com/matrix-org/gomatrix"
+	matrix "github.com/matterbridge/gomatrix"
 )
 
 type Bmatrix struct {
@@ -75,16 +75,26 @@ func (b *Bmatrix) JoinChannel(channel config.ChannelInfo) error {
 
 func (b *Bmatrix) Send(msg config.Message) (string, error) {
 	flog.Debugf("Receiving %#v", msg)
+	channel := b.getRoomID(msg.Channel)
 	// ignore delete messages
 	if msg.Event == config.EVENT_MSG_DELETE {
-		return "", nil
+		if msg.ID == "" {
+			return "", nil
+		}
+		resp, err := b.mc.RedactEvent(channel, msg.ID, &matrix.ReqRedact{})
+		if err != nil {
+			return "", err
+		}
+		return resp.EventID, err
 	}
-	channel := b.getRoomID(msg.Channel)
 	flog.Debugf("Sending to channel %s", channel)
 	if msg.Event == config.EVENT_USER_ACTION {
-		b.mc.SendMessageEvent(channel, "m.room.message",
+		resp, err := b.mc.SendMessageEvent(channel, "m.room.message",
 			matrix.TextMessage{"m.emote", msg.Username + msg.Text})
-		return "", nil
+		if err != nil {
+			return "", err
+		}
+		return resp.EventID, err
 	}
 
 	if msg.Extra != nil {
@@ -124,8 +134,11 @@ func (b *Bmatrix) Send(msg config.Message) (string, error) {
 		}
 	}
 
-	b.mc.SendText(channel, msg.Username+msg.Text)
+	resp, err := b.mc.SendText(channel, msg.Username+msg.Text)
-	return "", nil
+	if err != nil {
+		return "", err
+	}
+	return resp.EventID, err
 }
 
 func (b *Bmatrix) getRoomID(channel string) string {
@@ -138,58 +151,11 @@ func (b *Bmatrix) getRoomID(channel string) string {
 	}
 	return ""
 }
+
 func (b *Bmatrix) handlematrix() error {
 	syncer := b.mc.Syncer.(*matrix.DefaultSyncer)
-	syncer.OnEventType("m.room.message", func(ev *matrix.Event) {
+	syncer.OnEventType("m.room.redaction", b.handleEvent)
-		flog.Debugf("Received: %#v", ev)
+	syncer.OnEventType("m.room.message", b.handleEvent)
-		if (ev.Content["msgtype"].(string) == "m.text" ||
-			ev.Content["msgtype"].(string) == "m.notice" ||
-			ev.Content["msgtype"].(string) == "m.emote" ||
-			ev.Content["msgtype"].(string) == "m.file" ||
-			ev.Content["msgtype"].(string) == "m.image" ||
-			ev.Content["msgtype"].(string) == "m.video") && ev.Sender != b.UserID {
-			b.RLock()
-			channel, ok := b.RoomMap[ev.RoomID]
-			b.RUnlock()
-			if !ok {
-				flog.Debugf("Unknown room %s", ev.RoomID)
-				return
-			}
-			username := ev.Sender[1:]
-			if b.Config.NoHomeServerSuffix {
-				re := regexp.MustCompile("(.*?):.*")
-				username = re.ReplaceAllString(username, `$1`)
-			}
-			rmsg := config.Message{Username: username, Text: ev.Content["body"].(string), Channel: channel, Account: b.Account, UserID: ev.Sender}
-			if ev.Content["msgtype"].(string) == "m.emote" {
-				rmsg.Event = config.EVENT_USER_ACTION
-			}
-			if ev.Content["msgtype"].(string) == "m.image" ||
-				ev.Content["msgtype"].(string) == "m.video" ||
-				ev.Content["msgtype"].(string) == "m.file" {
-				flog.Debugf("ev: %#v", ev)
-				rmsg.Extra = make(map[string][]interface{})
-				url := ev.Content["url"].(string)
-				url = strings.Replace(url, "mxc://", b.Config.Server+"/_matrix/media/v1/download/", -1)
-				info := ev.Content["info"].(map[string]interface{})
-				size := info["size"].(float64)
-				name := ev.Content["body"].(string)
-				flog.Debugf("trying to download %#v with size %#v", name, size)
-				if size <= float64(b.General.MediaDownloadSize) {
-					data, err := helper.DownloadFile(url)
-					if err != nil {
-						flog.Errorf("download %s failed %#v", url, err)
-					} else {
-						flog.Debugf("download OK %#v %#v %#v", name, len(*data), len(url))
-						rmsg.Extra["file"] = append(rmsg.Extra["file"], config.FileInfo{Name: name, Data: data})
-					}
-				}
-				rmsg.Text = ""
-			}
-			flog.Debugf("Sending message from %s on %s to gateway", ev.Sender, b.Account)
-			b.Remote <- rmsg
-		}
-	})
 	go func() {
 		for {
 			if err := b.mc.Sync(); err != nil {
@@ -199,3 +165,73 @@ func (b *Bmatrix) handlematrix() error {
 	}()
 	return nil
 }
+
+func (b *Bmatrix) handleEvent(ev *matrix.Event) {
+	flog.Debugf("Received: %#v", ev)
+	if ev.Sender != b.UserID {
+		b.RLock()
+		channel, ok := b.RoomMap[ev.RoomID]
+		b.RUnlock()
+		if !ok {
+			flog.Debugf("Unknown room %s", ev.RoomID)
+			return
+		}
+		username := ev.Sender[1:]
+		if b.Config.NoHomeServerSuffix {
+			re := regexp.MustCompile("(.*?):.*")
+			username = re.ReplaceAllString(username, `$1`)
+		}
+		var text string
+		text, _ = ev.Content["body"].(string)
+		rmsg := config.Message{Username: username, Text: text, Channel: channel, Account: b.Account, UserID: ev.Sender}
+		rmsg.ID = ev.ID
+		if ev.Type == "m.room.redaction" {
+			rmsg.Event = config.EVENT_MSG_DELETE
+			rmsg.ID = ev.Redacts
+			rmsg.Text = config.EVENT_MSG_DELETE
+			b.Remote <- rmsg
+			return
+		}
+		if ev.Content["msgtype"].(string) == "m.emote" {
+			rmsg.Event = config.EVENT_USER_ACTION
+		}
+		if ev.Content["msgtype"] != nil && ev.Content["msgtype"].(string) == "m.image" ||
+			ev.Content["msgtype"].(string) == "m.video" ||
+			ev.Content["msgtype"].(string) == "m.file" {
+			flog.Debugf("ev: %#v", ev)
+			rmsg.Extra = make(map[string][]interface{})
+			url := ev.Content["url"].(string)
+			url = strings.Replace(url, "mxc://", b.Config.Server+"/_matrix/media/v1/download/", -1)
+			info := ev.Content["info"].(map[string]interface{})
+			size := info["size"].(float64)
+			name := ev.Content["body"].(string)
+			// check if we have an image uploaded without extension
+			if !strings.Contains(name, ".") {
+				if ev.Content["msgtype"].(string) == "m.image" {
+					if mtype, ok := ev.Content["mimetype"].(string); ok {
+						mext, _ := mime.ExtensionsByType(mtype)
+						if len(mext) > 0 {
+							name = name + mext[0]
+						}
+					} else {
+						// just a default .png extension if we don't have mime info
+						name = name + ".png"
+					}
+				}
+			}
+			flog.Debugf("trying to download %#v with size %#v", name, size)
+			if size <= float64(b.General.MediaDownloadSize) {
+				data, err := helper.DownloadFile(url)
+				if err != nil {
+					flog.Errorf("download %s failed %#v", url, err)
+				} else {
+					flog.Debugf("download OK %#v %#v %#v", name, len(*data), len(url))
+					rmsg.Extra["file"] = append(rmsg.Extra["file"], config.FileInfo{Name: name, Data: data})
+				}
+			}
+			rmsg.Text = ""
+		}
+		flog.Debugf("Sending message from %s on %s to gateway", ev.Sender, b.Account)
+		b.Remote <- rmsg
+	}
+}

bridge/mattermost/mattermost.go

@@ -32,10 +32,7 @@ type MMMessage struct {
 type Bmattermost struct {
 	MMhook
 	MMapi
-	Config  *config.Protocol
+	TeamId string
-	Remote  chan config.Message
-	TeamId  string
-	Account string
 	*config.BridgeConfig
 }
 

bridge/slack/slack.go

@@ -7,7 +7,7 @@ import (
 	"github.com/42wim/matterbridge/bridge/config"
 	"github.com/42wim/matterbridge/matterhook"
 	log "github.com/Sirupsen/logrus"
-	"github.com/matterbridge/slack"
+	"github.com/nlopes/slack"
 	"html"
 	"io"
 	"net/http"
@@ -107,7 +107,7 @@ func (b *Bslack) Disconnect() error {
 
 func (b *Bslack) JoinChannel(channel config.ChannelInfo) error {
 	// we can only join channels using the API
-	if b.Config.WebhookURL == "" && b.Config.WebhookBindAddress == "" {
+	if b.sc != nil {
 		if strings.HasPrefix(b.Config.Token, "xoxb") {
 			// TODO check if bot has already joined channel
 			return nil
@@ -309,9 +309,11 @@ func (b *Bslack) handleSlack() {
 
 func (b *Bslack) handleSlackClient(mchan chan *MMMessage) {
 	for msg := range b.rtm.IncomingEvents {
+		if msg.Type != "user_typing" && msg.Type != "latency_report" {
+			flog.Debugf("Receiving from slackclient %#v", msg.Data)
+		}
 		switch ev := msg.Data.(type) {
 		case *slack.MessageEvent:
-			flog.Debugf("Receiving from slackclient %#v", ev)
 			if len(ev.Attachments) > 0 {
 				// skip messages we made ourselves
 				if ev.Attachments[0].CallbackID == "matterbridge" {
@@ -394,6 +396,8 @@ func (b *Bslack) handleSlackClient(mchan chan *MMMessage) {
 			}
 		case *slack.InvalidAuthEvent:
 			flog.Fatalf("Invalid Token %#v", ev)
+		case *slack.ConnectionErrorEvent:
+			flog.Errorf("Connection failed %#v %#v", ev.Error(), ev.ErrorObj)
 		default:
 		}
 	}

bridge/xmpp/xmpp.go

@@ -110,7 +110,7 @@ func (b *Bxmpp) createXMPP() (*xmpp.Client, error) {
 		TLSConfig: tc,
 
 		//StartTLS:      false,
-		Debug:                        true,
+		Debug:                        b.General.Debug,
 		Session:                      true,
 		Status:                       "",
 		StatusMessage:                "",
@@ -166,7 +166,7 @@ func (b *Bxmpp) handleXmpp() error {
 				if len(s) == 2 {
 					nick = s[1]
 				}
-				if nick != b.Config.Nick && v.Stamp == nodelay && v.Text != "" {
+				if nick != b.Config.Nick && v.Stamp == nodelay && v.Text != "" && !strings.Contains(v.Text, "</subject>") {
 					rmsg := config.Message{Username: nick, Text: v.Text, Channel: channel, Account: b.Account, UserID: v.Remote}
 					rmsg.Text, ok = b.replaceAction(rmsg.Text)
 					if ok {

changelog.md

@@ -1,3 +1,33 @@
+# v1.7.0
+## New features
+* matrix: Add support for deleting messages from/to matrix (matrix). Closes #320
+* xmpp: Ignore <subject> messages (xmpp). #272
+* irc: Add twitch support (irc) to README / wiki
+
+## Bugfix
+* general: Change RemoteNickFormat replacement order. Closes #336
+* general: Make edits/delete work for bridges that gets reused. Closes #342
+* general: Lowercase irc channels in config. Closes #348
+* matrix: Fix possible panics (matrix). Closes #333
+* matrix: Add an extension to images without one (matrix). #331
+* api: Obey the Gateway value from the json (api). Closes #344
+* xmpp: Print only debug messages when specified (xmpp). Closes #345
+* xmpp: Allow xmpp to receive the extra messages (file uploads) when text is empty. #295
+
+# v1.6.3
+## Bugfix
+* slack: Fix connection issues
+* slack: Add more debug messages
+* irc: Convert received IRC channel names to lowercase. Fixes #329 (#330)
+
+# v1.6.2
+## Bugfix
+* mattermost: Crashes while connecting to Mattermost (regression). Closes #327
+
+# v1.6.1
+## Bugfix
+* general: Display of nicks not longer working (regression). Closes #323
+
 # v1.6.0
 ## New features
 * sshchat: New protocol support added (https://github.com/shazow/ssh-chat)

docker/arm/Dockerfile

@@ -0,0 +1,11 @@
+FROM cmosh/alpine-arm:edge
+ENTRYPOINT ["/bin/matterbridge"]
+
+COPY . /go/src/github.com/42wim/matterbridge
+RUN apk update && apk add go git gcc musl-dev ca-certificates \
+        && cd /go/src/github.com/42wim/matterbridge \
+        && export GOPATH=/go \
+        && go get \
+        && go build -x -ldflags "-X main.githash=$(git log --pretty=format:'%h' -n 1)" -o /bin/matterbridge \
+        && rm -rf /go \
+        && apk del --purge git go gcc musl-dev

gateway/gateway.go

@@ -29,8 +29,9 @@ type Gateway struct {
 }
 
 type BrMsgID struct {
-	br *bridge.Bridge
+	br        *bridge.Bridge
-	ID string
+	ID        string
+	ChannelID string
 }
 
 func New(cfg config.Gateway, r *Router) *Gateway {
@@ -93,6 +94,10 @@ func (gw *Gateway) mapChannelConfig(cfg []config.Bridge, direction string) {
 		if isApi(br.Account) {
 			br.Channel = "api"
 		}
+		// make sure to lowercase irc channels in config #348
+		if strings.HasPrefix(br.Account, "irc.") {
+			br.Channel = strings.ToLower(br.Channel)
+		}
 		ID := br.Channel + br.Account
 		if _, ok := gw.Channels[ID]; !ok {
 			channel := &config.ChannelInfo{Name: br.Channel, Direction: direction, ID: ID, Options: br.Options, Account: br.Account,
@@ -118,6 +123,12 @@ func (gw *Gateway) mapChannels() error {
 
 func (gw *Gateway) getDestChannel(msg *config.Message, dest bridge.Bridge) []config.ChannelInfo {
 	var channels []config.ChannelInfo
+
+	// for messages received from the api check that the gateway is the specified one
+	if msg.Protocol == "api" && gw.Name != msg.Gateway {
+		return channels
+	}
+
 	// if source channel is in only, do nothing
 	for _, channel := range gw.Channels {
 		// lookup the channel from the message
@@ -159,7 +170,8 @@ func (gw *Gateway) handleMessage(msg config.Message, dest *bridge.Bridge) []*BrM
 			dest.Protocol != "slack" &&
 			dest.Protocol != "mattermost" &&
 			dest.Protocol != "telegram" &&
-			dest.Protocol != "matrix" {
+			dest.Protocol != "matrix" &&
+			dest.Protocol != "xmpp" {
 			if msg.Text == "" {
 				return brMsgIDs
 			}
@@ -190,7 +202,9 @@ func (gw *Gateway) handleMessage(msg config.Message, dest *bridge.Bridge) []*BrM
 		if res, ok := gw.Messages.Get(origmsg.ID); ok {
 			IDs := res.([]*BrMsgID)
 			for _, id := range IDs {
-				if dest.Protocol == id.br.Protocol {
+				// check protocol, bridge name and channelname
+				// for people that reuse the same bridge multiple times. see #342
+				if dest.Protocol == id.br.Protocol && dest.Name == id.br.Name && channel.ID == id.ChannelID {
 					msg.ID = id.ID
 				}
 			}
@@ -205,7 +219,7 @@ func (gw *Gateway) handleMessage(msg config.Message, dest *bridge.Bridge) []*BrM
 		}
 		// append the message ID (mID) from this bridge (dest) to our brMsgIDs slice
 		if mID != "" {
-			brMsgIDs = append(brMsgIDs, &BrMsgID{dest, mID})
+			brMsgIDs = append(brMsgIDs, &BrMsgID{dest, mID, channel.ID})
 		}
 	}
 	return brMsgIDs
@@ -284,9 +298,9 @@ func (gw *Gateway) modifyUsername(msg config.Message, dest *bridge.Bridge) strin
 		}
 		nick = strings.Replace(nick, "{NOPINGNICK}", msg.Username[:i]+"​"+msg.Username[i:], -1)
 	}
-	nick = strings.Replace(nick, "{NICK}", msg.Username, -1)
 	nick = strings.Replace(nick, "{BRIDGE}", br.Name, -1)
 	nick = strings.Replace(nick, "{PROTOCOL}", br.Protocol, -1)
+	nick = strings.Replace(nick, "{NICK}", msg.Username, -1)
 	return nick
 }
 
@@ -318,7 +332,11 @@ func (gw *Gateway) modifyMessage(msg *config.Message) {
 		}
 		msg.Text = re.ReplaceAllString(msg.Text, replace)
 	}
-	msg.Gateway = gw.Name
+
+	// messages from api have Gateway specified, don't overwrite
+	if msg.Protocol != "api" {
+		msg.Gateway = gw.Name
+	}
 }
 
 func (gw *Gateway) handleFiles(msg *config.Message) {

matterbridge.go

@@ -12,7 +12,7 @@ import (
 )
 
 var (
-	version = "1.6.0"
+	version = "1.7.0"
 	githash string
 )
 
@@ -43,6 +43,7 @@ func main() {
 		log.Println("WARNING: THIS IS A DEVELOPMENT VERSION. Things may break.")
 	}
 	cfg := config.NewConfig(*flagConfig)
+	cfg.General.Debug = *flagDebug
 	r, err := gateway.NewRouter(cfg)
 	if err != nil {
 		log.Fatalf("Starting gateway failed: %s", err)

vendor/github.com/matterbridge/gomatrix/LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
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vendor/github.com/matterbridge/gomatrix/client.go

@@ -0,0 +1,703 @@
+// Package gomatrix implements the Matrix Client-Server API.
+//
+// Specification can be found at http://matrix.org/docs/spec/client_server/r0.2.0.html
+package gomatrix
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"path"
+	"strconv"
+	"sync"
+	"time"
+)
+
+// Client represents a Matrix client.
+type Client struct {
+	HomeserverURL *url.URL     // The base homeserver URL
+	Prefix        string       // The API prefix eg '/_matrix/client/r0'
+	UserID        string       // The user ID of the client. Used for forming HTTP paths which use the client's user ID.
+	AccessToken   string       // The access_token for the client.
+	Client        *http.Client // The underlying HTTP client which will be used to make HTTP requests.
+	Syncer        Syncer       // The thing which can process /sync responses
+	Store         Storer       // The thing which can store rooms/tokens/ids
+
+	// The ?user_id= query parameter for application services. This must be set *prior* to calling a method. If this is empty,
+	// no user_id parameter will be sent.
+	// See http://matrix.org/docs/spec/application_service/unstable.html#identity-assertion
+	AppServiceUserID string
+
+	syncingMutex sync.Mutex // protects syncingID
+	syncingID    uint32     // Identifies the current Sync. Only one Sync can be active at any given time.
+}
+
+// HTTPError An HTTP Error response, which may wrap an underlying native Go Error.
+type HTTPError struct {
+	WrappedError error
+	Message      string
+	Code         int
+}
+
+func (e HTTPError) Error() string {
+	var wrappedErrMsg string
+	if e.WrappedError != nil {
+		wrappedErrMsg = e.WrappedError.Error()
+	}
+	return fmt.Sprintf("msg=%s code=%d wrapped=%s", e.Message, e.Code, wrappedErrMsg)
+}
+
+// BuildURL builds a URL with the Client's homserver/prefix/access_token set already.
+func (cli *Client) BuildURL(urlPath ...string) string {
+	ps := []string{cli.Prefix}
+	for _, p := range urlPath {
+		ps = append(ps, p)
+	}
+	return cli.BuildBaseURL(ps...)
+}
+
+// BuildBaseURL builds a URL with the Client's homeserver/access_token set already. You must
+// supply the prefix in the path.
+func (cli *Client) BuildBaseURL(urlPath ...string) string {
+	// copy the URL. Purposefully ignore error as the input is from a valid URL already
+	hsURL, _ := url.Parse(cli.HomeserverURL.String())
+	parts := []string{hsURL.Path}
+	parts = append(parts, urlPath...)
+	hsURL.Path = path.Join(parts...)
+	query := hsURL.Query()
+	if cli.AccessToken != "" {
+		query.Set("access_token", cli.AccessToken)
+	}
+	if cli.AppServiceUserID != "" {
+		query.Set("user_id", cli.AppServiceUserID)
+	}
+	hsURL.RawQuery = query.Encode()
+	return hsURL.String()
+}
+
+// BuildURLWithQuery builds a URL with query parameters in addition to the Client's homeserver/prefix/access_token set already.
+func (cli *Client) BuildURLWithQuery(urlPath []string, urlQuery map[string]string) string {
+	u, _ := url.Parse(cli.BuildURL(urlPath...))
+	q := u.Query()
+	for k, v := range urlQuery {
+		q.Set(k, v)
+	}
+	u.RawQuery = q.Encode()
+	return u.String()
+}
+
+// SetCredentials sets the user ID and access token on this client instance.
+func (cli *Client) SetCredentials(userID, accessToken string) {
+	cli.AccessToken = accessToken
+	cli.UserID = userID
+}
+
+// ClearCredentials removes the user ID and access token on this client instance.
+func (cli *Client) ClearCredentials() {
+	cli.AccessToken = ""
+	cli.UserID = ""
+}
+
+// Sync starts syncing with the provided Homeserver. If Sync() is called twice then the first sync will be stopped and the
+// error will be nil.
+//
+// This function will block until a fatal /sync error occurs, so it should almost always be started as a new goroutine.
+// Fatal sync errors can be caused by:
+//   - The failure to create a filter.
+//   - Client.Syncer.OnFailedSync returning an error in response to a failed sync.
+//   - Client.Syncer.ProcessResponse returning an error.
+// If you wish to continue retrying in spite of these fatal errors, call Sync() again.
+func (cli *Client) Sync() error {
+	// Mark the client as syncing.
+	// We will keep syncing until the syncing state changes. Either because
+	// Sync is called or StopSync is called.
+	syncingID := cli.incrementSyncingID()
+	nextBatch := cli.Store.LoadNextBatch(cli.UserID)
+	filterID := cli.Store.LoadFilterID(cli.UserID)
+	if filterID == "" {
+		filterJSON := cli.Syncer.GetFilterJSON(cli.UserID)
+		resFilter, err := cli.CreateFilter(filterJSON)
+		if err != nil {
+			return err
+		}
+		filterID = resFilter.FilterID
+		cli.Store.SaveFilterID(cli.UserID, filterID)
+	}
+
+	for {
+		resSync, err := cli.SyncRequest(30000, nextBatch, filterID, false, "")
+		if err != nil {
+			duration, err2 := cli.Syncer.OnFailedSync(resSync, err)
+			if err2 != nil {
+				return err2
+			}
+			time.Sleep(duration)
+			continue
+		}
+
+		// Check that the syncing state hasn't changed
+		// Either because we've stopped syncing or another sync has been started.
+		// We discard the response from our sync.
+		if cli.getSyncingID() != syncingID {
+			return nil
+		}
+
+		// Save the token now *before* processing it. This means it's possible
+		// to not process some events, but it means that we won't get constantly stuck processing
+		// a malformed/buggy event which keeps making us panic.
+		cli.Store.SaveNextBatch(cli.UserID, resSync.NextBatch)
+		if err = cli.Syncer.ProcessResponse(resSync, nextBatch); err != nil {
+			return err
+		}
+
+		nextBatch = resSync.NextBatch
+	}
+}
+
+func (cli *Client) incrementSyncingID() uint32 {
+	cli.syncingMutex.Lock()
+	defer cli.syncingMutex.Unlock()
+	cli.syncingID++
+	return cli.syncingID
+}
+
+func (cli *Client) getSyncingID() uint32 {
+	cli.syncingMutex.Lock()
+	defer cli.syncingMutex.Unlock()
+	return cli.syncingID
+}
+
+// StopSync stops the ongoing sync started by Sync.
+func (cli *Client) StopSync() {
+	// Advance the syncing state so that any running Syncs will terminate.
+	cli.incrementSyncingID()
+}
+
+// MakeRequest makes a JSON HTTP request to the given URL.
+// If "resBody" is not nil, the response body will be json.Unmarshalled into it.
+//
+// Returns the HTTP body as bytes on 2xx with a nil error. Returns an error if the response is not 2xx along
+// with the HTTP body bytes if it got that far. This error is an HTTPError which includes the returned
+// HTTP status code and possibly a RespError as the WrappedError, if the HTTP body could be decoded as a RespError.
+func (cli *Client) MakeRequest(method string, httpURL string, reqBody interface{}, resBody interface{}) ([]byte, error) {
+	var req *http.Request
+	var err error
+	if reqBody != nil {
+		var jsonStr []byte
+		jsonStr, err = json.Marshal(reqBody)
+		if err != nil {
+			return nil, err
+		}
+		req, err = http.NewRequest(method, httpURL, bytes.NewBuffer(jsonStr))
+	} else {
+		req, err = http.NewRequest(method, httpURL, nil)
+	}
+
+	if err != nil {
+		return nil, err
+	}
+	req.Header.Set("Content-Type", "application/json")
+	res, err := cli.Client.Do(req)
+	if res != nil {
+		defer res.Body.Close()
+	}
+	if err != nil {
+		return nil, err
+	}
+	contents, err := ioutil.ReadAll(res.Body)
+	if res.StatusCode/100 != 2 { // not 2xx
+		var wrap error
+		var respErr RespError
+		if _ = json.Unmarshal(contents, &respErr); respErr.ErrCode != "" {
+			wrap = respErr
+		}
+
+		// If we failed to decode as RespError, don't just drop the HTTP body, include it in the
+		// HTTP error instead (e.g proxy errors which return HTML).
+		msg := "Failed to " + method + " JSON to " + req.URL.Path
+		if wrap == nil {
+			msg = msg + ": " + string(contents)
+		}
+
+		return contents, HTTPError{
+			Code:         res.StatusCode,
+			Message:      msg,
+			WrappedError: wrap,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	if resBody != nil {
+		if err = json.Unmarshal(contents, &resBody); err != nil {
+			return nil, err
+		}
+	}
+
+	return contents, nil
+}
+
+// CreateFilter makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-user-userid-filter
+func (cli *Client) CreateFilter(filter json.RawMessage) (resp *RespCreateFilter, err error) {
+	urlPath := cli.BuildURL("user", cli.UserID, "filter")
+	_, err = cli.MakeRequest("POST", urlPath, &filter, &resp)
+	return
+}
+
+// SyncRequest makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-sync
+func (cli *Client) SyncRequest(timeout int, since, filterID string, fullState bool, setPresence string) (resp *RespSync, err error) {
+	query := map[string]string{
+		"timeout": strconv.Itoa(timeout),
+	}
+	if since != "" {
+		query["since"] = since
+	}
+	if filterID != "" {
+		query["filter"] = filterID
+	}
+	if setPresence != "" {
+		query["set_presence"] = setPresence
+	}
+	if fullState {
+		query["full_state"] = "true"
+	}
+	urlPath := cli.BuildURLWithQuery([]string{"sync"}, query)
+	_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
+	return
+}
+
+func (cli *Client) register(u string, req *ReqRegister) (resp *RespRegister, uiaResp *RespUserInteractive, err error) {
+	var bodyBytes []byte
+	bodyBytes, err = cli.MakeRequest("POST", u, req, nil)
+	if err != nil {
+		httpErr, ok := err.(HTTPError)
+		if !ok { // network error
+			return
+		}
+		if httpErr.Code == 401 {
+			// body should be RespUserInteractive, if it isn't, fail with the error
+			err = json.Unmarshal(bodyBytes, &uiaResp)
+			return
+		}
+		return
+	}
+	// body should be RespRegister
+	err = json.Unmarshal(bodyBytes, &resp)
+	return
+}
+
+// Register makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-register
+//
+// Registers with kind=user. For kind=guest, see RegisterGuest.
+func (cli *Client) Register(req *ReqRegister) (*RespRegister, *RespUserInteractive, error) {
+	u := cli.BuildURL("register")
+	return cli.register(u, req)
+}
+
+// RegisterGuest makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-register
+// with kind=guest.
+//
+// For kind=user, see Register.
+func (cli *Client) RegisterGuest(req *ReqRegister) (*RespRegister, *RespUserInteractive, error) {
+	query := map[string]string{
+		"kind": "guest",
+	}
+	u := cli.BuildURLWithQuery([]string{"register"}, query)
+	return cli.register(u, req)
+}
+
+// RegisterDummy performs m.login.dummy registration according to https://matrix.org/docs/spec/client_server/r0.2.0.html#dummy-auth
+//
+// Only a username and password need to be provided on the ReqRegister struct. Most local/developer homeservers will allow registration
+// this way. If the homeserver does not, an error is returned.
+//
+// This does not set credentials on the client instance. See SetCredentials() instead.
+//
+// 	res, err := cli.RegisterDummy(&gomatrix.ReqRegister{
+//		Username: "alice",
+//		Password: "wonderland",
+//	})
+//  if err != nil {
+// 		panic(err)
+// 	}
+// 	token := res.AccessToken
+func (cli *Client) RegisterDummy(req *ReqRegister) (*RespRegister, error) {
+	res, uia, err := cli.Register(req)
+	if err != nil && uia == nil {
+		return nil, err
+	}
+	if uia != nil && uia.HasSingleStageFlow("m.login.dummy") {
+		req.Auth = struct {
+			Type    string `json:"type"`
+			Session string `json:"session,omitempty"`
+		}{"m.login.dummy", uia.Session}
+		res, _, err = cli.Register(req)
+		if err != nil {
+			return nil, err
+		}
+	}
+	if res == nil {
+		return nil, fmt.Errorf("registration failed: does this server support m.login.dummy?")
+	}
+	return res, nil
+}
+
+// Login a user to the homeserver according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-login
+// This does not set credentials on this client instance. See SetCredentials() instead.
+func (cli *Client) Login(req *ReqLogin) (resp *RespLogin, err error) {
+	urlPath := cli.BuildURL("login")
+	_, err = cli.MakeRequest("POST", urlPath, req, &resp)
+	return
+}
+
+// Logout the current user. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-logout
+// This does not clear the credentials from the client instance. See ClearCredentials() instead.
+func (cli *Client) Logout() (resp *RespLogout, err error) {
+	urlPath := cli.BuildURL("logout")
+	_, err = cli.MakeRequest("POST", urlPath, nil, &resp)
+	return
+}
+
+// Versions returns the list of supported Matrix versions on this homeserver. See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-versions
+func (cli *Client) Versions() (resp *RespVersions, err error) {
+	urlPath := cli.BuildBaseURL("_matrix", "client", "versions")
+	_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
+	return
+}
+
+// JoinRoom joins the client to a room ID or alias. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-join-roomidoralias
+//
+// If serverName is specified, this will be added as a query param to instruct the homeserver to join via that server. If content is specified, it will
+// be JSON encoded and used as the request body.
+func (cli *Client) JoinRoom(roomIDorAlias, serverName string, content interface{}) (resp *RespJoinRoom, err error) {
+	var urlPath string
+	if serverName != "" {
+		urlPath = cli.BuildURLWithQuery([]string{"join", roomIDorAlias}, map[string]string{
+			"server_name": serverName,
+		})
+	} else {
+		urlPath = cli.BuildURL("join", roomIDorAlias)
+	}
+	_, err = cli.MakeRequest("POST", urlPath, content, &resp)
+	return
+}
+
+// GetDisplayName returns the display name of the user from the specified MXID. See https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-profile-userid-displayname
+func (cli *Client) GetDisplayName(mxid string) (resp *RespUserDisplayName, err error) {
+	urlPath := cli.BuildURL("profile", mxid, "displayname")
+	_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
+	return
+}
+
+// GetOwnDisplayName returns the user's display name. See https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-profile-userid-displayname
+func (cli *Client) GetOwnDisplayName() (resp *RespUserDisplayName, err error) {
+	urlPath := cli.BuildURL("profile", cli.UserID, "displayname")
+	_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
+	return
+}
+
+// SetDisplayName sets the user's profile display name. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-profile-userid-displayname
+func (cli *Client) SetDisplayName(displayName string) (err error) {
+	urlPath := cli.BuildURL("profile", cli.UserID, "displayname")
+	s := struct {
+		DisplayName string `json:"displayname"`
+	}{displayName}
+	_, err = cli.MakeRequest("PUT", urlPath, &s, nil)
+	return
+}
+
+// GetAvatarURL gets the user's avatar URL. See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-profile-userid-avatar-url
+func (cli *Client) GetAvatarURL() (url string, err error) {
+	urlPath := cli.BuildURL("profile", cli.UserID, "avatar_url")
+	s := struct {
+		AvatarURL string `json:"avatar_url"`
+	}{}
+
+	_, err = cli.MakeRequest("GET", urlPath, nil, &s)
+	if err != nil {
+		return "", err
+	}
+
+	return s.AvatarURL, nil
+}
+
+// SetAvatarURL sets the user's avatar URL. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-profile-userid-avatar-url
+func (cli *Client) SetAvatarURL(url string) (err error) {
+	urlPath := cli.BuildURL("profile", cli.UserID, "avatar_url")
+	s := struct {
+		AvatarURL string `json:"avatar_url"`
+	}{url}
+	_, err = cli.MakeRequest("PUT", urlPath, &s, nil)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// SendMessageEvent sends a message event into a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-send-eventtype-txnid
+// contentJSON should be a pointer to something that can be encoded as JSON using json.Marshal.
+func (cli *Client) SendMessageEvent(roomID string, eventType string, contentJSON interface{}) (resp *RespSendEvent, err error) {
+	txnID := txnID()
+	urlPath := cli.BuildURL("rooms", roomID, "send", eventType, txnID)
+	_, err = cli.MakeRequest("PUT", urlPath, contentJSON, &resp)
+	return
+}
+
+// SendStateEvent sends a state event into a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-state-eventtype-statekey
+// contentJSON should be a pointer to something that can be encoded as JSON using json.Marshal.
+func (cli *Client) SendStateEvent(roomID, eventType, stateKey string, contentJSON interface{}) (resp *RespSendEvent, err error) {
+	urlPath := cli.BuildURL("rooms", roomID, "state", eventType, stateKey)
+	_, err = cli.MakeRequest("PUT", urlPath, contentJSON, &resp)
+	return
+}
+
+// SendText sends an m.room.message event into the given room with a msgtype of m.text
+// See http://matrix.org/docs/spec/client_server/r0.2.0.html#m-text
+func (cli *Client) SendText(roomID, text string) (*RespSendEvent, error) {
+	return cli.SendMessageEvent(roomID, "m.room.message",
+		TextMessage{"m.text", text})
+}
+
+// SendImage sends an m.room.message event into the given room with a msgtype of m.image
+// See https://matrix.org/docs/spec/client_server/r0.2.0.html#m-image
+func (cli *Client) SendImage(roomID, body, url string) (*RespSendEvent, error) {
+	return cli.SendMessageEvent(roomID, "m.room.message",
+		ImageMessage{
+			MsgType: "m.image",
+			Body:    body,
+			URL:     url,
+		})
+}
+
+// SendVideo sends an m.room.message event into the given room with a msgtype of m.video
+// See https://matrix.org/docs/spec/client_server/r0.2.0.html#m-video
+func (cli *Client) SendVideo(roomID, body, url string) (*RespSendEvent, error) {
+	return cli.SendMessageEvent(roomID, "m.room.message",
+		VideoMessage{
+			MsgType: "m.video",
+			Body:    body,
+			URL:     url,
+		})
+}
+
+// SendNotice sends an m.room.message event into the given room with a msgtype of m.notice
+// See http://matrix.org/docs/spec/client_server/r0.2.0.html#m-notice
+func (cli *Client) SendNotice(roomID, text string) (*RespSendEvent, error) {
+	return cli.SendMessageEvent(roomID, "m.room.message",
+		TextMessage{"m.notice", text})
+}
+
+// RedactEvent redacts the given event. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-redact-eventid-txnid
+func (cli *Client) RedactEvent(roomID, eventID string, req *ReqRedact) (resp *RespSendEvent, err error) {
+	txnID := txnID()
+	urlPath := cli.BuildURL("rooms", roomID, "redact", eventID, txnID)
+	_, err = cli.MakeRequest("PUT", urlPath, req, &resp)
+	return
+}
+
+// CreateRoom creates a new Matrix room. See https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
+//  resp, err := cli.CreateRoom(&gomatrix.ReqCreateRoom{
+//  	Preset: "public_chat",
+//  })
+//  fmt.Println("Room:", resp.RoomID)
+func (cli *Client) CreateRoom(req *ReqCreateRoom) (resp *RespCreateRoom, err error) {
+	urlPath := cli.BuildURL("createRoom")
+	_, err = cli.MakeRequest("POST", urlPath, req, &resp)
+	return
+}
+
+// LeaveRoom leaves the given room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-leave
+func (cli *Client) LeaveRoom(roomID string) (resp *RespLeaveRoom, err error) {
+	u := cli.BuildURL("rooms", roomID, "leave")
+	_, err = cli.MakeRequest("POST", u, struct{}{}, &resp)
+	return
+}
+
+// ForgetRoom forgets a room entirely. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-forget
+func (cli *Client) ForgetRoom(roomID string) (resp *RespForgetRoom, err error) {
+	u := cli.BuildURL("rooms", roomID, "forget")
+	_, err = cli.MakeRequest("POST", u, struct{}{}, &resp)
+	return
+}
+
+// InviteUser invites a user to a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-invite
+func (cli *Client) InviteUser(roomID string, req *ReqInviteUser) (resp *RespInviteUser, err error) {
+	u := cli.BuildURL("rooms", roomID, "invite")
+	_, err = cli.MakeRequest("POST", u, struct{}{}, &resp)
+	return
+}
+
+// InviteUserByThirdParty invites a third-party identifier to a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#invite-by-third-party-id-endpoint
+func (cli *Client) InviteUserByThirdParty(roomID string, req *ReqInvite3PID) (resp *RespInviteUser, err error) {
+	u := cli.BuildURL("rooms", roomID, "invite")
+	_, err = cli.MakeRequest("POST", u, req, &resp)
+	return
+}
+
+// KickUser kicks a user from a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-kick
+func (cli *Client) KickUser(roomID string, req *ReqKickUser) (resp *RespKickUser, err error) {
+	u := cli.BuildURL("rooms", roomID, "kick")
+	_, err = cli.MakeRequest("POST", u, req, &resp)
+	return
+}
+
+// BanUser bans a user from a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-ban
+func (cli *Client) BanUser(roomID string, req *ReqBanUser) (resp *RespBanUser, err error) {
+	u := cli.BuildURL("rooms", roomID, "ban")
+	_, err = cli.MakeRequest("POST", u, req, &resp)
+	return
+}
+
+// UnbanUser unbans a user from a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-unban
+func (cli *Client) UnbanUser(roomID string, req *ReqUnbanUser) (resp *RespUnbanUser, err error) {
+	u := cli.BuildURL("rooms", roomID, "unban")
+	_, err = cli.MakeRequest("POST", u, req, &resp)
+	return
+}
+
+// UserTyping sets the typing status of the user. See https://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-typing-userid
+func (cli *Client) UserTyping(roomID string, typing bool, timeout int64) (resp *RespTyping, err error) {
+	req := ReqTyping{Typing: typing, Timeout: timeout}
+	u := cli.BuildURL("rooms", roomID, "typing", cli.UserID)
+	_, err = cli.MakeRequest("PUT", u, req, &resp)
+	return
+}
+
+// StateEvent gets a single state event in a room. It will attempt to JSON unmarshal into the given "outContent" struct with
+// the HTTP response body, or return an error.
+// See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-rooms-roomid-state-eventtype-statekey
+func (cli *Client) StateEvent(roomID, eventType, stateKey string, outContent interface{}) (err error) {
+	u := cli.BuildURL("rooms", roomID, "state", eventType, stateKey)
+	_, err = cli.MakeRequest("GET", u, nil, outContent)
+	return
+}
+
+// UploadLink uploads an HTTP URL and then returns an MXC URI.
+func (cli *Client) UploadLink(link string) (*RespMediaUpload, error) {
+	res, err := cli.Client.Get(link)
+	if res != nil {
+		defer res.Body.Close()
+	}
+	if err != nil {
+		return nil, err
+	}
+	return cli.UploadToContentRepo(res.Body, res.Header.Get("Content-Type"), res.ContentLength)
+}
+
+// UploadToContentRepo uploads the given bytes to the content repository and returns an MXC URI.
+// See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-media-r0-upload
+func (cli *Client) UploadToContentRepo(content io.Reader, contentType string, contentLength int64) (*RespMediaUpload, error) {
+	req, err := http.NewRequest("POST", cli.BuildBaseURL("_matrix/media/r0/upload"), content)
+	if err != nil {
+		return nil, err
+	}
+	req.Header.Set("Content-Type", contentType)
+	req.ContentLength = contentLength
+	res, err := cli.Client.Do(req)
+	if res != nil {
+		defer res.Body.Close()
+	}
+	if err != nil {
+		return nil, err
+	}
+	if res.StatusCode != 200 {
+		contents, err := ioutil.ReadAll(res.Body)
+		if err != nil {
+			return nil, HTTPError{
+				Message: "Upload request failed - Failed to read response body: " + err.Error(),
+				Code:    res.StatusCode,
+			}
+		}
+		return nil, HTTPError{
+			Message: "Upload request failed: " + string(contents),
+			Code:    res.StatusCode,
+		}
+	}
+	var m RespMediaUpload
+	if err := json.NewDecoder(res.Body).Decode(&m); err != nil {
+		return nil, err
+	}
+	return &m, nil
+}
+
+// JoinedMembers returns a map of joined room members. See TODO-SPEC. https://github.com/matrix-org/synapse/pull/1680
+//
+// In general, usage of this API is discouraged in favour of /sync, as calling this API can race with incoming membership changes.
+// This API is primarily designed for application services which may want to efficiently look up joined members in a room.
+func (cli *Client) JoinedMembers(roomID string) (resp *RespJoinedMembers, err error) {
+	u := cli.BuildURL("rooms", roomID, "joined_members")
+	_, err = cli.MakeRequest("GET", u, nil, &resp)
+	return
+}
+
+// JoinedRooms returns a list of rooms which the client is joined to. See TODO-SPEC. https://github.com/matrix-org/synapse/pull/1680
+//
+// In general, usage of this API is discouraged in favour of /sync, as calling this API can race with incoming membership changes.
+// This API is primarily designed for application services which may want to efficiently look up joined rooms.
+func (cli *Client) JoinedRooms() (resp *RespJoinedRooms, err error) {
+	u := cli.BuildURL("joined_rooms")
+	_, err = cli.MakeRequest("GET", u, nil, &resp)
+	return
+}
+
+// Messages returns a list of message and state events for a room. It uses
+// pagination query parameters to paginate history in the room.
+// See https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-rooms-roomid-messages
+func (cli *Client) Messages(roomID, from, to string, dir rune, limit int) (resp *RespMessages, err error) {
+	query := map[string]string{
+		"from": from,
+		"dir":  string(dir),
+	}
+	if to != "" {
+		query["to"] = to
+	}
+	if limit != 0 {
+		query["limit"] = strconv.Itoa(limit)
+	}
+
+	urlPath := cli.BuildURLWithQuery([]string{"rooms", roomID, "messages"}, query)
+	_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
+	return
+}
+
+// TurnServer returns turn server details and credentials for the client to use when initiating calls.
+// See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-voip-turnserver
+func (cli *Client) TurnServer() (resp *RespTurnServer, err error) {
+	urlPath := cli.BuildURL("voip", "turnServer")
+	_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
+	return
+}
+
+func txnID() string {
+	return "go" + strconv.FormatInt(time.Now().UnixNano(), 10)
+}
+
+// NewClient creates a new Matrix Client ready for syncing
+func NewClient(homeserverURL, userID, accessToken string) (*Client, error) {
+	hsURL, err := url.Parse(homeserverURL)
+	if err != nil {
+		return nil, err
+	}
+	// By default, use an in-memory store which will never save filter ids / next batch tokens to disk.
+	// The client will work with this storer: it just won't remember across restarts.
+	// In practice, a database backend should be used.
+	store := NewInMemoryStore()
+	cli := Client{
+		AccessToken:   accessToken,
+		HomeserverURL: hsURL,
+		UserID:        userID,
+		Prefix:        "/_matrix/client/r0",
+		Syncer:        NewDefaultSyncer(userID, store),
+		Store:         store,
+	}
+	// By default, use the default HTTP client.
+	cli.Client = http.DefaultClient
+
+	return &cli, nil
+}

vendor/github.com/matterbridge/gomatrix/events.go

@@ -0,0 +1,102 @@
+package gomatrix
+
+import (
+	"html"
+	"regexp"
+)
+
+// Event represents a single Matrix event.
+type Event struct {
+	StateKey  *string                `json:"state_key,omitempty"` // The state key for the event. Only present on State Events.
+	Sender    string                 `json:"sender"`              // The user ID of the sender of the event
+	Type      string                 `json:"type"`                // The event type
+	Timestamp int64                  `json:"origin_server_ts"`    // The unix timestamp when this message was sent by the origin server
+	ID        string                 `json:"event_id"`            // The unique ID of this event
+	RoomID    string                 `json:"room_id"`             // The room the event was sent to. May be nil (e.g. for presence)
+	Content   map[string]interface{} `json:"content"`             // The JSON content of the event.
+	Redacts   string                 `json:"redacts,omitempty"`   // The event ID that was redacted if a m.room.redaction event
+}
+
+// Body returns the value of the "body" key in the event content if it is
+// present and is a string.
+func (event *Event) Body() (body string, ok bool) {
+	value, exists := event.Content["body"]
+	if !exists {
+		return
+	}
+	body, ok = value.(string)
+	return
+}
+
+// MessageType returns the value of the "msgtype" key in the event content if
+// it is present and is a string.
+func (event *Event) MessageType() (msgtype string, ok bool) {
+	value, exists := event.Content["msgtype"]
+	if !exists {
+		return
+	}
+	msgtype, ok = value.(string)
+	return
+}
+
+// TextMessage is the contents of a Matrix formated message event.
+type TextMessage struct {
+	MsgType string `json:"msgtype"`
+	Body    string `json:"body"`
+}
+
+// ImageInfo contains info about an image - http://matrix.org/docs/spec/client_server/r0.2.0.html#m-image
+type ImageInfo struct {
+	Height   uint   `json:"h,omitempty"`
+	Width    uint   `json:"w,omitempty"`
+	Mimetype string `json:"mimetype,omitempty"`
+	Size     uint   `json:"size,omitempty"`
+}
+
+// VideoInfo contains info about a video - http://matrix.org/docs/spec/client_server/r0.2.0.html#m-video
+type VideoInfo struct {
+	Mimetype      string    `json:"mimetype,omitempty"`
+	ThumbnailInfo ImageInfo `json:"thumbnail_info"`
+	ThumbnailURL  string    `json:"thumbnail_url,omitempty"`
+	Height        uint      `json:"h,omitempty"`
+	Width         uint      `json:"w,omitempty"`
+	Duration      uint      `json:"duration,omitempty"`
+	Size          uint      `json:"size,omitempty"`
+}
+
+// VideoMessage is an m.video  - http://matrix.org/docs/spec/client_server/r0.2.0.html#m-video
+type VideoMessage struct {
+	MsgType string    `json:"msgtype"`
+	Body    string    `json:"body"`
+	URL     string    `json:"url"`
+	Info    VideoInfo `json:"info"`
+}
+
+// ImageMessage is an m.image event
+type ImageMessage struct {
+	MsgType string    `json:"msgtype"`
+	Body    string    `json:"body"`
+	URL     string    `json:"url"`
+	Info    ImageInfo `json:"info"`
+}
+
+// An HTMLMessage is the contents of a Matrix HTML formated message event.
+type HTMLMessage struct {
+	Body          string `json:"body"`
+	MsgType       string `json:"msgtype"`
+	Format        string `json:"format"`
+	FormattedBody string `json:"formatted_body"`
+}
+
+var htmlRegex = regexp.MustCompile("<[^<]+?>")
+
+// GetHTMLMessage returns an HTMLMessage with the body set to a stripped version of the provided HTML, in addition
+// to the provided HTML.
+func GetHTMLMessage(msgtype, htmlText string) HTMLMessage {
+	return HTMLMessage{
+		Body:          html.UnescapeString(htmlRegex.ReplaceAllLiteralString(htmlText, "")),
+		MsgType:       msgtype,
+		Format:        "org.matrix.custom.html",
+		FormattedBody: htmlText,
+	}
+}

vendor/github.com/matterbridge/gomatrix/filter.go

@@ -0,0 +1,43 @@
+// Copyright 2017 Jan Christian Grünhage
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package gomatrix
+
+//Filter is used by clients to specify how the server should filter responses to e.g. sync requests
+//Specified by: https://matrix.org/docs/spec/client_server/r0.2.0.html#filtering
+type Filter struct {
+	AccountData FilterPart `json:"account_data,omitempty"`
+	EventFields []string   `json:"event_fields,omitempty"`
+	EventFormat string     `json:"event_format,omitempty"`
+	Presence    FilterPart `json:"presence,omitempty"`
+	Room        struct {
+		AccountData  FilterPart `json:"account_data,omitempty"`
+		Ephemeral    FilterPart `json:"ephemeral,omitempty"`
+		IncludeLeave bool       `json:"include_leave,omitempty"`
+		NotRooms     []string   `json:"not_rooms,omitempty"`
+		Rooms        []string   `json:"rooms,omitempty"`
+		State        FilterPart `json:"state,omitempty"`
+		Timeline     FilterPart `json:"timeline,omitempty"`
+	} `json:"room,omitempty"`
+}
+
+type FilterPart struct {
+	NotRooms   []string `json:"not_rooms,omitempty"`
+	Rooms      []string `json:"rooms,omitempty"`
+	Limit      *int     `json:"limit,omitempty"`
+	NotSenders []string `json:"not_senders,omitempty"`
+	NotTypes   []string `json:"not_types,omitempty"`
+	Senders    []string `json:"senders,omitempty"`
+	Types      []string `json:"types,omitempty"`
+}

vendor/github.com/matterbridge/gomatrix/requests.go

@@ -0,0 +1,78 @@
+package gomatrix
+
+// ReqRegister is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-register
+type ReqRegister struct {
+	Username                 string      `json:"username,omitempty"`
+	BindEmail                bool        `json:"bind_email,omitempty"`
+	Password                 string      `json:"password,omitempty"`
+	DeviceID                 string      `json:"device_id,omitempty"`
+	InitialDeviceDisplayName string      `json:"initial_device_display_name"`
+	Auth                     interface{} `json:"auth,omitempty"`
+}
+
+// ReqLogin is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-login
+type ReqLogin struct {
+	Type                     string `json:"type"`
+	Password                 string `json:"password,omitempty"`
+	Medium                   string `json:"medium,omitempty"`
+	User                     string `json:"user,omitempty"`
+	Address                  string `json:"address,omitempty"`
+	Token                    string `json:"token,omitempty"`
+	DeviceID                 string `json:"device_id,omitempty"`
+	InitialDeviceDisplayName string `json:"initial_device_display_name,omitempty"`
+}
+
+// ReqCreateRoom is the JSON request for https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
+type ReqCreateRoom struct {
+	Visibility      string                 `json:"visibility,omitempty"`
+	RoomAliasName   string                 `json:"room_alias_name,omitempty"`
+	Name            string                 `json:"name,omitempty"`
+	Topic           string                 `json:"topic,omitempty"`
+	Invite          []string               `json:"invite,omitempty"`
+	Invite3PID      []ReqInvite3PID        `json:"invite_3pid,omitempty"`
+	CreationContent map[string]interface{} `json:"creation_content,omitempty"`
+	InitialState    []Event                `json:"initial_state,omitempty"`
+	Preset          string                 `json:"preset,omitempty"`
+	IsDirect        bool                   `json:"is_direct,omitempty"`
+}
+
+// ReqRedact is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-redact-eventid-txnid
+type ReqRedact struct {
+	Reason string `json:"reason,omitempty"`
+}
+
+// ReqInvite3PID is the JSON request for https://matrix.org/docs/spec/client_server/r0.2.0.html#id57
+// It is also a JSON object used in https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
+type ReqInvite3PID struct {
+	IDServer string `json:"id_server"`
+	Medium   string `json:"medium"`
+	Address  string `json:"address"`
+}
+
+// ReqInviteUser is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-invite
+type ReqInviteUser struct {
+	UserID string `json:"user_id"`
+}
+
+// ReqKickUser is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-kick
+type ReqKickUser struct {
+	Reason string `json:"reason,omitempty"`
+	UserID string `json:"user_id"`
+}
+
+// ReqBanUser is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-ban
+type ReqBanUser struct {
+	Reason string `json:"reason,omitempty"`
+	UserID string `json:"user_id"`
+}
+
+// ReqUnbanUser is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-unban
+type ReqUnbanUser struct {
+	UserID string `json:"user_id"`
+}
+
+// ReqTyping is the JSON request for https://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-typing-userid
+type ReqTyping struct {
+	Typing  bool  `json:"typing"`
+	Timeout int64 `json:"timeout"`
+}

vendor/github.com/matterbridge/gomatrix/responses.go

@@ -0,0 +1,176 @@
+package gomatrix
+
+// RespError is the standard JSON error response from Homeservers. It also implements the Golang "error" interface.
+// See http://matrix.org/docs/spec/client_server/r0.2.0.html#api-standards
+type RespError struct {
+	ErrCode string `json:"errcode"`
+	Err     string `json:"error"`
+}
+
+// Error returns the errcode and error message.
+func (e RespError) Error() string {
+	return e.ErrCode + ": " + e.Err
+}
+
+// RespCreateFilter is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-user-userid-filter
+type RespCreateFilter struct {
+	FilterID string `json:"filter_id"`
+}
+
+// RespVersions is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-versions
+type RespVersions struct {
+	Versions []string `json:"versions"`
+}
+
+// RespJoinRoom is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-join
+type RespJoinRoom struct {
+	RoomID string `json:"room_id"`
+}
+
+// RespLeaveRoom is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-leave
+type RespLeaveRoom struct{}
+
+// RespForgetRoom is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-forget
+type RespForgetRoom struct{}
+
+// RespInviteUser is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-invite
+type RespInviteUser struct{}
+
+// RespKickUser is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-kick
+type RespKickUser struct{}
+
+// RespBanUser is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-ban
+type RespBanUser struct{}
+
+// RespUnbanUser is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-unban
+type RespUnbanUser struct{}
+
+// RespTyping is the JSON response for https://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-typing-userid
+type RespTyping struct{}
+
+// RespJoinedRooms is the JSON response for TODO-SPEC https://github.com/matrix-org/synapse/pull/1680
+type RespJoinedRooms struct {
+	JoinedRooms []string `json:"joined_rooms"`
+}
+
+// RespJoinedMembers is the JSON response for TODO-SPEC https://github.com/matrix-org/synapse/pull/1680
+type RespJoinedMembers struct {
+	Joined map[string]struct {
+		DisplayName *string `json:"display_name"`
+		AvatarURL   *string `json:"avatar_url"`
+	} `json:"joined"`
+}
+
+// RespMessages is the JSON response for https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-rooms-roomid-messages
+type RespMessages struct {
+	Start string  `json:"start"`
+	Chunk []Event `json:"chunk"`
+	End   string  `json:"end"`
+}
+
+// RespSendEvent is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-send-eventtype-txnid
+type RespSendEvent struct {
+	EventID string `json:"event_id"`
+}
+
+// RespMediaUpload is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-media-r0-upload
+type RespMediaUpload struct {
+	ContentURI string `json:"content_uri"`
+}
+
+// RespUserInteractive is the JSON response for https://matrix.org/docs/spec/client_server/r0.2.0.html#user-interactive-authentication-api
+type RespUserInteractive struct {
+	Flows []struct {
+		Stages []string `json:"stages"`
+	} `json:"flows"`
+	Params    map[string]interface{} `json:"params"`
+	Session   string                 `json:"string"`
+	Completed []string               `json:"completed"`
+	ErrCode   string                 `json:"errcode"`
+	Error     string                 `json:"error"`
+}
+
+// HasSingleStageFlow returns true if there exists at least 1 Flow with a single stage of stageName.
+func (r RespUserInteractive) HasSingleStageFlow(stageName string) bool {
+	for _, f := range r.Flows {
+		if len(f.Stages) == 1 && f.Stages[0] == stageName {
+			return true
+		}
+	}
+	return false
+}
+
+// RespUserDisplayName is the JSON response for https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-profile-userid-displayname
+type RespUserDisplayName struct {
+	DisplayName string `json:"displayname"`
+}
+
+// RespRegister is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-register
+type RespRegister struct {
+	AccessToken  string `json:"access_token"`
+	DeviceID     string `json:"device_id"`
+	HomeServer   string `json:"home_server"`
+	RefreshToken string `json:"refresh_token"`
+	UserID       string `json:"user_id"`
+}
+
+// RespLogin is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-login
+type RespLogin struct {
+	AccessToken string `json:"access_token"`
+	DeviceID    string `json:"device_id"`
+	HomeServer  string `json:"home_server"`
+	UserID      string `json:"user_id"`
+}
+
+// RespLogout is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-logout
+type RespLogout struct{}
+
+// RespCreateRoom is the JSON response for https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
+type RespCreateRoom struct {
+	RoomID string `json:"room_id"`
+}
+
+// RespSync is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-sync
+type RespSync struct {
+	NextBatch   string `json:"next_batch"`
+	AccountData struct {
+		Events []Event `json:"events"`
+	} `json:"account_data"`
+	Presence struct {
+		Events []Event `json:"events"`
+	} `json:"presence"`
+	Rooms struct {
+		Leave map[string]struct {
+			State struct {
+				Events []Event `json:"events"`
+			} `json:"state"`
+			Timeline struct {
+				Events    []Event `json:"events"`
+				Limited   bool    `json:"limited"`
+				PrevBatch string  `json:"prev_batch"`
+			} `json:"timeline"`
+		} `json:"leave"`
+		Join map[string]struct {
+			State struct {
+				Events []Event `json:"events"`
+			} `json:"state"`
+			Timeline struct {
+				Events    []Event `json:"events"`
+				Limited   bool    `json:"limited"`
+				PrevBatch string  `json:"prev_batch"`
+			} `json:"timeline"`
+		} `json:"join"`
+		Invite map[string]struct {
+			State struct {
+				Events []Event
+			} `json:"invite_state"`
+		} `json:"invite"`
+	} `json:"rooms"`
+}
+
+type RespTurnServer struct {
+	Username string   `json:"username"`
+	Password string   `json:"password"`
+	TTL      int      `json:"ttl"`
+	URIs     []string `json:"uris"`
+}

vendor/github.com/matterbridge/gomatrix/room.go

@@ -0,0 +1,50 @@
+package gomatrix
+
+// Room represents a single Matrix room.
+type Room struct {
+	ID    string
+	State map[string]map[string]*Event
+}
+
+// UpdateState updates the room's current state with the given Event. This will clobber events based
+// on the type/state_key combination.
+func (room Room) UpdateState(event *Event) {
+	_, exists := room.State[event.Type]
+	if !exists {
+		room.State[event.Type] = make(map[string]*Event)
+	}
+	room.State[event.Type][*event.StateKey] = event
+}
+
+// GetStateEvent returns the state event for the given type/state_key combo, or nil.
+func (room Room) GetStateEvent(eventType string, stateKey string) *Event {
+	stateEventMap, _ := room.State[eventType]
+	event, _ := stateEventMap[stateKey]
+	return event
+}
+
+// GetMembershipState returns the membership state of the given user ID in this room. If there is
+// no entry for this member, 'leave' is returned for consistency with left users.
+func (room Room) GetMembershipState(userID string) string {
+	state := "leave"
+	event := room.GetStateEvent("m.room.member", userID)
+	if event != nil {
+		membershipState, found := event.Content["membership"]
+		if found {
+			mState, isString := membershipState.(string)
+			if isString {
+				state = mState
+			}
+		}
+	}
+	return state
+}
+
+// NewRoom creates a new Room with the given ID
+func NewRoom(roomID string) *Room {
+	// Init the State map and return a pointer to the Room
+	return &Room{
+		ID:    roomID,
+		State: make(map[string]map[string]*Event),
+	}
+}

vendor/github.com/matterbridge/gomatrix/store.go

@@ -0,0 +1,65 @@
+package gomatrix
+
+// Storer is an interface which must be satisfied to store client data.
+//
+// You can either write a struct which persists this data to disk, or you can use the
+// provided "InMemoryStore" which just keeps data around in-memory which is lost on
+// restarts.
+type Storer interface {
+	SaveFilterID(userID, filterID string)
+	LoadFilterID(userID string) string
+	SaveNextBatch(userID, nextBatchToken string)
+	LoadNextBatch(userID string) string
+	SaveRoom(room *Room)
+	LoadRoom(roomID string) *Room
+}
+
+// InMemoryStore implements the Storer interface.
+//
+// Everything is persisted in-memory as maps. It is not safe to load/save filter IDs
+// or next batch tokens on any goroutine other than the syncing goroutine: the one
+// which called Client.Sync().
+type InMemoryStore struct {
+	Filters   map[string]string
+	NextBatch map[string]string
+	Rooms     map[string]*Room
+}
+
+// SaveFilterID to memory.
+func (s *InMemoryStore) SaveFilterID(userID, filterID string) {
+	s.Filters[userID] = filterID
+}
+
+// LoadFilterID from memory.
+func (s *InMemoryStore) LoadFilterID(userID string) string {
+	return s.Filters[userID]
+}
+
+// SaveNextBatch to memory.
+func (s *InMemoryStore) SaveNextBatch(userID, nextBatchToken string) {
+	s.NextBatch[userID] = nextBatchToken
+}
+
+// LoadNextBatch from memory.
+func (s *InMemoryStore) LoadNextBatch(userID string) string {
+	return s.NextBatch[userID]
+}
+
+// SaveRoom to memory.
+func (s *InMemoryStore) SaveRoom(room *Room) {
+	s.Rooms[room.ID] = room
+}
+
+// LoadRoom from memory.
+func (s *InMemoryStore) LoadRoom(roomID string) *Room {
+	return s.Rooms[roomID]
+}
+
+// NewInMemoryStore constructs a new InMemoryStore.
+func NewInMemoryStore() *InMemoryStore {
+	return &InMemoryStore{
+		Filters:   make(map[string]string),
+		NextBatch: make(map[string]string),
+		Rooms:     make(map[string]*Room),
+	}
+}

vendor/github.com/matterbridge/gomatrix/sync.go

@@ -0,0 +1,164 @@
+package gomatrix
+
+import (
+	"encoding/json"
+	"fmt"
+	"runtime/debug"
+	"time"
+)
+
+// Syncer represents an interface that must be satisfied in order to do /sync requests on a client.
+type Syncer interface {
+	// Process the /sync response. The since parameter is the since= value that was used to produce the response.
+	// This is useful for detecting the very first sync (since=""). If an error is return, Syncing will be stopped
+	// permanently.
+	ProcessResponse(resp *RespSync, since string) error
+	// OnFailedSync returns either the time to wait before retrying or an error to stop syncing permanently.
+	OnFailedSync(res *RespSync, err error) (time.Duration, error)
+	// GetFilterJSON for the given user ID. NOT the filter ID.
+	GetFilterJSON(userID string) json.RawMessage
+}
+
+// DefaultSyncer is the default syncing implementation. You can either write your own syncer, or selectively
+// replace parts of this default syncer (e.g. the ProcessResponse method). The default syncer uses the observer
+// pattern to notify callers about incoming events. See DefaultSyncer.OnEventType for more information.
+type DefaultSyncer struct {
+	UserID    string
+	Store     Storer
+	listeners map[string][]OnEventListener // event type to listeners array
+}
+
+// OnEventListener can be used with DefaultSyncer.OnEventType to be informed of incoming events.
+type OnEventListener func(*Event)
+
+// NewDefaultSyncer returns an instantiated DefaultSyncer
+func NewDefaultSyncer(userID string, store Storer) *DefaultSyncer {
+	return &DefaultSyncer{
+		UserID:    userID,
+		Store:     store,
+		listeners: make(map[string][]OnEventListener),
+	}
+}
+
+// ProcessResponse processes the /sync response in a way suitable for bots. "Suitable for bots" means a stream of
+// unrepeating events. Returns a fatal error if a listener panics.
+func (s *DefaultSyncer) ProcessResponse(res *RespSync, since string) (err error) {
+	if !s.shouldProcessResponse(res, since) {
+		return
+	}
+
+	defer func() {
+		if r := recover(); r != nil {
+			err = fmt.Errorf("ProcessResponse panicked! userID=%s since=%s panic=%s\n%s", s.UserID, since, r, debug.Stack())
+		}
+	}()
+
+	for roomID, roomData := range res.Rooms.Join {
+		room := s.getOrCreateRoom(roomID)
+		for _, event := range roomData.State.Events {
+			event.RoomID = roomID
+			room.UpdateState(&event)
+			s.notifyListeners(&event)
+		}
+		for _, event := range roomData.Timeline.Events {
+			event.RoomID = roomID
+			s.notifyListeners(&event)
+		}
+	}
+	for roomID, roomData := range res.Rooms.Invite {
+		room := s.getOrCreateRoom(roomID)
+		for _, event := range roomData.State.Events {
+			event.RoomID = roomID
+			room.UpdateState(&event)
+			s.notifyListeners(&event)
+		}
+	}
+	for roomID, roomData := range res.Rooms.Leave {
+		room := s.getOrCreateRoom(roomID)
+		for _, event := range roomData.Timeline.Events {
+			if event.StateKey != nil {
+				event.RoomID = roomID
+				room.UpdateState(&event)
+				s.notifyListeners(&event)
+			}
+		}
+	}
+	return
+}
+
+// OnEventType allows callers to be notified when there are new events for the given event type.
+// There are no duplicate checks.
+func (s *DefaultSyncer) OnEventType(eventType string, callback OnEventListener) {
+	_, exists := s.listeners[eventType]
+	if !exists {
+		s.listeners[eventType] = []OnEventListener{}
+	}
+	s.listeners[eventType] = append(s.listeners[eventType], callback)
+}
+
+// shouldProcessResponse returns true if the response should be processed. May modify the response to remove
+// stuff that shouldn't be processed.
+func (s *DefaultSyncer) shouldProcessResponse(resp *RespSync, since string) bool {
+	if since == "" {
+		return false
+	}
+	// This is a horrible hack because /sync will return the most recent messages for a room
+	// as soon as you /join it. We do NOT want to process those events in that particular room
+	// because they may have already been processed (if you toggle the bot in/out of the room).
+	//
+	// Work around this by inspecting each room's timeline and seeing if an m.room.member event for us
+	// exists and is "join" and then discard processing that room entirely if so.
+	// TODO: We probably want to process messages from after the last join event in the timeline.
+	for roomID, roomData := range resp.Rooms.Join {
+		for i := len(roomData.Timeline.Events) - 1; i >= 0; i-- {
+			e := roomData.Timeline.Events[i]
+			if e.Type == "m.room.member" && e.StateKey != nil && *e.StateKey == s.UserID {
+				m := e.Content["membership"]
+				mship, ok := m.(string)
+				if !ok {
+					continue
+				}
+				if mship == "join" {
+					_, ok := resp.Rooms.Join[roomID]
+					if !ok {
+						continue
+					}
+					delete(resp.Rooms.Join, roomID)   // don't re-process messages
+					delete(resp.Rooms.Invite, roomID) // don't re-process invites
+					break
+				}
+			}
+		}
+	}
+	return true
+}
+
+// getOrCreateRoom must only be called by the Sync() goroutine which calls ProcessResponse()
+func (s *DefaultSyncer) getOrCreateRoom(roomID string) *Room {
+	room := s.Store.LoadRoom(roomID)
+	if room == nil { // create a new Room
+		room = NewRoom(roomID)
+		s.Store.SaveRoom(room)
+	}
+	return room
+}
+
+func (s *DefaultSyncer) notifyListeners(event *Event) {
+	listeners, exists := s.listeners[event.Type]
+	if !exists {
+		return
+	}
+	for _, fn := range listeners {
+		fn(event)
+	}
+}
+
+// OnFailedSync always returns a 10 second wait period between failed /syncs, never a fatal error.
+func (s *DefaultSyncer) OnFailedSync(res *RespSync, err error) (time.Duration, error) {
+	return 10 * time.Second, nil
+}
+
+// GetFilterJSON returns a filter with a timeline limit of 50.
+func (s *DefaultSyncer) GetFilterJSON(userID string) json.RawMessage {
+	return json.RawMessage(`{"room":{"timeline":{"limit":50}}}`)
+}

vendor/github.com/matterbridge/gomatrix/userids.go

@@ -0,0 +1,130 @@
+package gomatrix
+
+import (
+	"bytes"
+	"encoding/hex"
+	"fmt"
+	"strings"
+)
+
+const lowerhex = "0123456789abcdef"
+
+// encode the given byte using quoted-printable encoding (e.g "=2f")
+// and writes it to the buffer
+// See https://golang.org/src/mime/quotedprintable/writer.go
+func encode(buf *bytes.Buffer, b byte) {
+	buf.WriteByte('=')
+	buf.WriteByte(lowerhex[b>>4])
+	buf.WriteByte(lowerhex[b&0x0f])
+}
+
+// escape the given alpha character and writes it to the buffer
+func escape(buf *bytes.Buffer, b byte) {
+	buf.WriteByte('_')
+	if b == '_' {
+		buf.WriteByte('_') // another _
+	} else {
+		buf.WriteByte(b + 0x20) // ASCII shift A-Z to a-z
+	}
+}
+
+func shouldEncode(b byte) bool {
+	return b != '-' && b != '.' && b != '_' && !(b >= '0' && b <= '9') && !(b >= 'a' && b <= 'z') && !(b >= 'A' && b <= 'Z')
+}
+
+func shouldEscape(b byte) bool {
+	return (b >= 'A' && b <= 'Z') || b == '_'
+}
+
+func isValidByte(b byte) bool {
+	return isValidEscapedChar(b) || (b >= '0' && b <= '9') || b == '.' || b == '=' || b == '-'
+}
+
+func isValidEscapedChar(b byte) bool {
+	return b == '_' || (b >= 'a' && b <= 'z')
+}
+
+// EncodeUserLocalpart encodes the given string into Matrix-compliant user ID localpart form.
+// See http://matrix.org/docs/spec/intro.html#mapping-from-other-character-sets
+//
+// This returns a string with only the characters "a-z0-9._=-". The uppercase range A-Z
+// are encoded using leading underscores ("_"). Characters outside the aforementioned ranges
+// (including literal underscores ("_") and equals ("=")) are encoded as UTF8 code points (NOT NCRs)
+// and converted to lower-case hex with a leading "=". For example:
+//   Alph@Bet_50up  => _alph=40_bet=5f50up
+func EncodeUserLocalpart(str string) string {
+	strBytes := []byte(str)
+	var outputBuffer bytes.Buffer
+	for _, b := range strBytes {
+		if shouldEncode(b) {
+			encode(&outputBuffer, b)
+		} else if shouldEscape(b) {
+			escape(&outputBuffer, b)
+		} else {
+			outputBuffer.WriteByte(b)
+		}
+	}
+	return outputBuffer.String()
+}
+
+// DecodeUserLocalpart decodes the given string back into the original input string.
+// Returns an error if the given string is not a valid user ID localpart encoding.
+// See http://matrix.org/docs/spec/intro.html#mapping-from-other-character-sets
+//
+// This decodes quoted-printable bytes back into UTF8, and unescapes casing. For
+// example:
+//  _alph=40_bet=5f50up  =>  Alph@Bet_50up
+// Returns an error if the input string contains characters outside the
+// range "a-z0-9._=-", has an invalid quote-printable byte (e.g. not hex), or has
+// an invalid _ escaped byte (e.g. "_5").
+func DecodeUserLocalpart(str string) (string, error) {
+	strBytes := []byte(str)
+	var outputBuffer bytes.Buffer
+	for i := 0; i < len(strBytes); i++ {
+		b := strBytes[i]
+		if !isValidByte(b) {
+			return "", fmt.Errorf("Byte pos %d: Invalid byte", i)
+		}
+
+		if b == '_' { // next byte is a-z and should be upper-case or is another _ and should be a literal _
+			if i+1 >= len(strBytes) {
+				return "", fmt.Errorf("Byte pos %d: expected _[a-z_] encoding but ran out of string", i)
+			}
+			if !isValidEscapedChar(strBytes[i+1]) { // invalid escaping
+				return "", fmt.Errorf("Byte pos %d: expected _[a-z_] encoding", i)
+			}
+			if strBytes[i+1] == '_' {
+				outputBuffer.WriteByte('_')
+			} else {
+				outputBuffer.WriteByte(strBytes[i+1] - 0x20) // ASCII shift a-z to A-Z
+			}
+			i++ // skip next byte since we just handled it
+		} else if b == '=' { // next 2 bytes are hex and should be buffered ready to be read as utf8
+			if i+2 >= len(strBytes) {
+				return "", fmt.Errorf("Byte pos: %d: expected quote-printable encoding but ran out of string", i)
+			}
+			dst := make([]byte, 1)
+			_, err := hex.Decode(dst, strBytes[i+1:i+3])
+			if err != nil {
+				return "", err
+			}
+			outputBuffer.WriteByte(dst[0])
+			i += 2 // skip next 2 bytes since we just handled it
+		} else { // pass through
+			outputBuffer.WriteByte(b)
+		}
+	}
+	return outputBuffer.String(), nil
+}
+
+// ExtractUserLocalpart extracts the localpart portion of a user ID.
+// See http://matrix.org/docs/spec/intro.html#user-identifiers
+func ExtractUserLocalpart(userID string) (string, error) {
+	if len(userID) == 0 || userID[0] != '@' {
+		return "", fmt.Errorf("%s is not a valid user id", userID)
+	}
+	return strings.TrimPrefix(
+		strings.SplitN(userID, ":", 2)[0], // @foo:bar:8448 => [ "@foo", "bar:8448" ]
+		"@", // remove "@" prefix
+	), nil
+}

vendor/github.com/matterbridge/slack/websocket_utils.go

@@ -1,20 +0,0 @@
-package slack
-
-import (
-	"net"
-	"net/url"
-)
-
-var portMapping = map[string]string{"ws": "80", "wss": "443"}
-
-func websocketizeURLPort(orig string) (string, error) {
-	urlObj, err := url.ParseRequestURI(orig)
-	if err != nil {
-		return "", err
-	}
-	_, _, err = net.SplitHostPort(urlObj.Host)
-	if err != nil {
-		return urlObj.Scheme + "://" + urlObj.Host + ":" + portMapping[urlObj.Scheme] + urlObj.Path, nil
-	}
-	return orig, nil
-}

vendor/github.com/nlopes/slack/attachments.go

@@ -25,6 +25,7 @@ type AttachmentAction struct {
 	SelectedOptions []AttachmentActionOption      `json:"selected_options,omitempty"` // Optional. The first element of this array will be set as the pre-selected option for this menu.
 	OptionGroups    []AttachmentActionOptionGroup `json:"option_groups,omitempty"`    // Optional.
 	Confirm         *ConfirmationField            `json:"confirm,omitempty"`          // Optional.
+	URL             string                        `json:"url,omitempty"`              // Optional.
 }
 
 // AttachmentActionOption the individual option to appear in action menu.
@@ -48,6 +49,9 @@ type AttachmentActionCallback struct {
 	Channel    Channel            `json:"channel"`
 	User       User               `json:"user"`
 
+	Name  string `json:"name"`
+	Value string `json:"value"`
+
 	OriginalMessage Message `json:"original_message"`
 
 	ActionTs     string `json:"action_ts"`

vendor/github.com/nlopes/slack/channels.go

@@ -38,51 +38,51 @@ func channelRequest(ctx context.Context, path string, values url.Values, debug b
 }
 
 // ArchiveChannel archives the given channel
-func (api *Client) ArchiveChannel(channel string) error {
+// see https://api.slack.com/methods/channels.archive
-	return api.ArchiveChannelContext(context.Background(), channel)
+func (api *Client) ArchiveChannel(channelID string) error {
+	return api.ArchiveChannelContext(context.Background(), channelID)
 }
 
 // ArchiveChannelContext archives the given channel with a custom context
-func (api *Client) ArchiveChannelContext(ctx context.Context, channel string) error {
+// see https://api.slack.com/methods/channels.archive
+func (api *Client) ArchiveChannelContext(ctx context.Context, channelID string) error {
 	values := url.Values{
 		"token":   {api.config.token},
-		"channel": {channel},
+		"channel": {channelID},
 	}
 	_, err := channelRequest(ctx, "channels.archive", values, api.debug)
-	if err != nil {
+	return err
-		return err
-	}
-	return nil
 }
 
 // UnarchiveChannel unarchives the given channel
-func (api *Client) UnarchiveChannel(channel string) error {
+// see https://api.slack.com/methods/channels.unarchive
-	return api.UnarchiveChannelContext(context.Background(), channel)
+func (api *Client) UnarchiveChannel(channelID string) error {
+	return api.UnarchiveChannelContext(context.Background(), channelID)
 }
 
 // UnarchiveChannelContext unarchives the given channel with a custom context
-func (api *Client) UnarchiveChannelContext(ctx context.Context, channel string) error {
+// see https://api.slack.com/methods/channels.unarchive
+func (api *Client) UnarchiveChannelContext(ctx context.Context, channelID string) error {
 	values := url.Values{
 		"token":   {api.config.token},
-		"channel": {channel},
+		"channel": {channelID},
 	}
 	_, err := channelRequest(ctx, "channels.unarchive", values, api.debug)
-	if err != nil {
+	return err
-		return err
-	}
-	return nil
 }
 
 // CreateChannel creates a channel with the given name and returns a *Channel
-func (api *Client) CreateChannel(channel string) (*Channel, error) {
+// see https://api.slack.com/methods/channels.create
-	return api.CreateChannelContext(context.Background(), channel)
+func (api *Client) CreateChannel(channelName string) (*Channel, error) {
+	return api.CreateChannelContext(context.Background(), channelName)
 }
 
 // CreateChannelContext creates a channel with the given name and returns a *Channel with a custom context
-func (api *Client) CreateChannelContext(ctx context.Context, channel string) (*Channel, error) {
+// see https://api.slack.com/methods/channels.create
+func (api *Client) CreateChannelContext(ctx context.Context, channelName string) (*Channel, error) {
 	values := url.Values{
 		"token": {api.config.token},
-		"name":  {channel},
+		"name":  {channelName},
 	}
 	response, err := channelRequest(ctx, "channels.create", values, api.debug)
 	if err != nil {
@@ -92,15 +92,17 @@ func (api *Client) CreateChannelContext(ctx context.Context, channel string) (*C
 }
 
 // GetChannelHistory retrieves the channel history
-func (api *Client) GetChannelHistory(channel string, params HistoryParameters) (*History, error) {
+// see https://api.slack.com/methods/channels.history
-	return api.GetChannelHistoryContext(context.Background(), channel, params)
+func (api *Client) GetChannelHistory(channelID string, params HistoryParameters) (*History, error) {
+	return api.GetChannelHistoryContext(context.Background(), channelID, params)
 }
 
 // GetChannelHistoryContext retrieves the channel history with a custom context
-func (api *Client) GetChannelHistoryContext(ctx context.Context, channel string, params HistoryParameters) (*History, error) {
+// see https://api.slack.com/methods/channels.history
+func (api *Client) GetChannelHistoryContext(ctx context.Context, channelID string, params HistoryParameters) (*History, error) {
 	values := url.Values{
 		"token":   {api.config.token},
-		"channel": {channel},
+		"channel": {channelID},
 	}
 	if params.Latest != DEFAULT_HISTORY_LATEST {
 		values.Add("latest", params.Latest)
@@ -133,15 +135,17 @@ func (api *Client) GetChannelHistoryContext(ctx context.Context, channel string,
 }
 
 // GetChannelInfo retrieves the given channel
-func (api *Client) GetChannelInfo(channel string) (*Channel, error) {
+// see https://api.slack.com/methods/channels.info
-	return api.GetChannelInfoContext(context.Background(), channel)
+func (api *Client) GetChannelInfo(channelID string) (*Channel, error) {
+	return api.GetChannelInfoContext(context.Background(), channelID)
 }
 
 // GetChannelInfoContext retrieves the given channel with a custom context
-func (api *Client) GetChannelInfoContext(ctx context.Context, channel string) (*Channel, error) {
+// see https://api.slack.com/methods/channels.info
+func (api *Client) GetChannelInfoContext(ctx context.Context, channelID string) (*Channel, error) {
 	values := url.Values{
 		"token":   {api.config.token},
-		"channel": {channel},
+		"channel": {channelID},
 	}
 	response, err := channelRequest(ctx, "channels.info", values, api.debug)
 	if err != nil {
@@ -151,15 +155,17 @@ func (api *Client) GetChannelInfoContext(ctx context.Context, channel string) (*
 }
 
 // InviteUserToChannel invites a user to a given channel and returns a *Channel
-func (api *Client) InviteUserToChannel(channel, user string) (*Channel, error) {
+// see https://api.slack.com/methods/channels.invite
-	return api.InviteUserToChannelContext(context.Background(), channel, user)
+func (api *Client) InviteUserToChannel(channelID, user string) (*Channel, error) {
+	return api.InviteUserToChannelContext(context.Background(), channelID, user)
 }
 
 // InviteUserToChannelCustom invites a user to a given channel and returns a *Channel with a custom context
-func (api *Client) InviteUserToChannelContext(ctx context.Context, channel, user string) (*Channel, error) {
+// see https://api.slack.com/methods/channels.invite
+func (api *Client) InviteUserToChannelContext(ctx context.Context, channelID, user string) (*Channel, error) {
 	values := url.Values{
 		"token":   {api.config.token},
-		"channel": {channel},
+		"channel": {channelID},
 		"user":    {user},
 	}
 	response, err := channelRequest(ctx, "channels.invite", values, api.debug)
@@ -170,15 +176,17 @@ func (api *Client) InviteUserToChannelContext(ctx context.Context, channel, user
 }
 
 // JoinChannel joins the currently authenticated user to a channel
-func (api *Client) JoinChannel(channel string) (*Channel, error) {
+// see https://api.slack.com/methods/channels.join
-	return api.JoinChannelContext(context.Background(), channel)
+func (api *Client) JoinChannel(channelName string) (*Channel, error) {
+	return api.JoinChannelContext(context.Background(), channelName)
 }
 
 // JoinChannelContext joins the currently authenticated user to a channel with a custom context
-func (api *Client) JoinChannelContext(ctx context.Context, channel string) (*Channel, error) {
+// see https://api.slack.com/methods/channels.join
+func (api *Client) JoinChannelContext(ctx context.Context, channelName string) (*Channel, error) {
 	values := url.Values{
 		"token": {api.config.token},
-		"name":  {channel},
+		"name":  {channelName},
 	}
 	response, err := channelRequest(ctx, "channels.join", values, api.debug)
 	if err != nil {
@@ -188,15 +196,17 @@ func (api *Client) JoinChannelContext(ctx context.Context, channel string) (*Cha
 }
 
 // LeaveChannel makes the authenticated user leave the given channel
-func (api *Client) LeaveChannel(channel string) (bool, error) {
+// see https://api.slack.com/methods/channels.leave
-	return api.LeaveChannelContext(context.Background(), channel)
+func (api *Client) LeaveChannel(channelID string) (bool, error) {
+	return api.LeaveChannelContext(context.Background(), channelID)
 }
 
 // LeaveChannelContext makes the authenticated user leave the given channel with a custom context
-func (api *Client) LeaveChannelContext(ctx context.Context, channel string) (bool, error) {
+// see https://api.slack.com/methods/channels.leave
+func (api *Client) LeaveChannelContext(ctx context.Context, channelID string) (bool, error) {
 	values := url.Values{
 		"token":   {api.config.token},
-		"channel": {channel},
+		"channel": {channelID},
 	}
 	response, err := channelRequest(ctx, "channels.leave", values, api.debug)
 	if err != nil {
@@ -209,30 +219,31 @@ func (api *Client) LeaveChannelContext(ctx context.Context, channel string) (boo
 }
 
 // KickUserFromChannel kicks a user from a given channel
-func (api *Client) KickUserFromChannel(channel, user string) error {
+// see https://api.slack.com/methods/channels.kick
-	return api.KickUserFromChannelContext(context.Background(), channel, user)
+func (api *Client) KickUserFromChannel(channelID, user string) error {
+	return api.KickUserFromChannelContext(context.Background(), channelID, user)
 }
 
 // KickUserFromChannelContext kicks a user from a given channel with a custom context
-func (api *Client) KickUserFromChannelContext(ctx context.Context, channel, user string) error {
+// see https://api.slack.com/methods/channels.kick
+func (api *Client) KickUserFromChannelContext(ctx context.Context, channelID, user string) error {
 	values := url.Values{
 		"token":   {api.config.token},
-		"channel": {channel},
+		"channel": {channelID},
 		"user":    {user},
 	}
 	_, err := channelRequest(ctx, "channels.kick", values, api.debug)
-	if err != nil {
+	return err
-		return err
-	}
-	return nil
 }
 
 // GetChannels retrieves all the channels
+// see https://api.slack.com/methods/channels.list
 func (api *Client) GetChannels(excludeArchived bool) ([]Channel, error) {
 	return api.GetChannelsContext(context.Background(), excludeArchived)
 }
 
 // GetChannelsContext retrieves all the channels with a custom context
+// see https://api.slack.com/methods/channels.list
 func (api *Client) GetChannelsContext(ctx context.Context, excludeArchived bool) ([]Channel, error) {
 	values := url.Values{
 		"token": {api.config.token},
@@ -252,35 +263,36 @@ func (api *Client) GetChannelsContext(ctx context.Context, excludeArchived bool)
 // timer before making the call. In this way, any further updates needed during the timeout will not generate extra calls
 // (just one per channel). This is useful for when reading scroll-back history, or following a busy live channel. A
 // timeout of 5 seconds is a good starting point. Be sure to flush these calls on shutdown/logout.
-func (api *Client) SetChannelReadMark(channel, ts string) error {
+// see https://api.slack.com/methods/channels.mark
-	return api.SetChannelReadMarkContext(context.Background(), channel, ts)
+func (api *Client) SetChannelReadMark(channelID, ts string) error {
+	return api.SetChannelReadMarkContext(context.Background(), channelID, ts)
 }
 
 // SetChannelReadMarkContext sets the read mark of a given channel to a specific point with a custom context
 // For more details see SetChannelReadMark documentation
-func (api *Client) SetChannelReadMarkContext(ctx context.Context, channel, ts string) error {
+// see https://api.slack.com/methods/channels.mark
+func (api *Client) SetChannelReadMarkContext(ctx context.Context, channelID, ts string) error {
 	values := url.Values{
 		"token":   {api.config.token},
-		"channel": {channel},
+		"channel": {channelID},
 		"ts":      {ts},
 	}
 	_, err := channelRequest(ctx, "channels.mark", values, api.debug)
-	if err != nil {
+	return err
-		return err
-	}
-	return nil
 }
 
 // RenameChannel renames a given channel
-func (api *Client) RenameChannel(channel, name string) (*Channel, error) {
+// see https://api.slack.com/methods/channels.rename
-	return api.RenameChannelContext(context.Background(), channel, name)
+func (api *Client) RenameChannel(channelID, name string) (*Channel, error) {
+	return api.RenameChannelContext(context.Background(), channelID, name)
 }
 
 // RenameChannelContext renames a given channel with a custom context
-func (api *Client) RenameChannelContext(ctx context.Context, channel, name string) (*Channel, error) {
+// see https://api.slack.com/methods/channels.rename
+func (api *Client) RenameChannelContext(ctx context.Context, channelID, name string) (*Channel, error) {
 	values := url.Values{
 		"token":   {api.config.token},
-		"channel": {channel},
+		"channel": {channelID},
 		"name":    {name},
 	}
 	// XXX: the created entry in this call returns a string instead of a number
@@ -293,15 +305,17 @@ func (api *Client) RenameChannelContext(ctx context.Context, channel, name strin
 }
 
 // SetChannelPurpose sets the channel purpose and returns the purpose that was successfully set
-func (api *Client) SetChannelPurpose(channel, purpose string) (string, error) {
+// see https://api.slack.com/methods/channels.setPurpose
-	return api.SetChannelPurposeContext(context.Background(), channel, purpose)
+func (api *Client) SetChannelPurpose(channelID, purpose string) (string, error) {
+	return api.SetChannelPurposeContext(context.Background(), channelID, purpose)
 }
 
 // SetChannelPurposeContext sets the channel purpose and returns the purpose that was successfully set with a custom context
-func (api *Client) SetChannelPurposeContext(ctx context.Context, channel, purpose string) (string, error) {
+// see https://api.slack.com/methods/channels.setPurpose
+func (api *Client) SetChannelPurposeContext(ctx context.Context, channelID, purpose string) (string, error) {
 	values := url.Values{
 		"token":   {api.config.token},
-		"channel": {channel},
+		"channel": {channelID},
 		"purpose": {purpose},
 	}
 	response, err := channelRequest(ctx, "channels.setPurpose", values, api.debug)
@@ -312,15 +326,17 @@ func (api *Client) SetChannelPurposeContext(ctx context.Context, channel, purpos
 }
 
 // SetChannelTopic sets the channel topic and returns the topic that was successfully set
-func (api *Client) SetChannelTopic(channel, topic string) (string, error) {
+// see https://api.slack.com/methods/channels.setTopic
-	return api.SetChannelTopicContext(context.Background(), channel, topic)
+func (api *Client) SetChannelTopic(channelID, topic string) (string, error) {
+	return api.SetChannelTopicContext(context.Background(), channelID, topic)
 }
 
 // SetChannelTopicContext sets the channel topic and returns the topic that was successfully set with a custom context
-func (api *Client) SetChannelTopicContext(ctx context.Context, channel, topic string) (string, error) {
+// see https://api.slack.com/methods/channels.setTopic
+func (api *Client) SetChannelTopicContext(ctx context.Context, channelID, topic string) (string, error) {
 	values := url.Values{
 		"token":   {api.config.token},
-		"channel": {channel},
+		"channel": {channelID},
 		"topic":   {topic},
 	}
 	response, err := channelRequest(ctx, "channels.setTopic", values, api.debug)
@@ -331,15 +347,17 @@ func (api *Client) SetChannelTopicContext(ctx context.Context, channel, topic st
 }
 
 // GetChannelReplies gets an entire thread (a message plus all the messages in reply to it).
-func (api *Client) GetChannelReplies(channel, thread_ts string) ([]Message, error) {
+// see https://api.slack.com/methods/channels.replies
-	return api.GetChannelRepliesContext(context.Background(), channel, thread_ts)
+func (api *Client) GetChannelReplies(channelID, thread_ts string) ([]Message, error) {
+	return api.GetChannelRepliesContext(context.Background(), channelID, thread_ts)
 }
 
 // GetChannelRepliesContext gets an entire thread (a message plus all the messages in reply to it) with a custom context
-func (api *Client) GetChannelRepliesContext(ctx context.Context, channel, thread_ts string) ([]Message, error) {
+// see https://api.slack.com/methods/channels.replies
+func (api *Client) GetChannelRepliesContext(ctx context.Context, channelID, thread_ts string) ([]Message, error) {
 	values := url.Values{
 		"token":     {api.config.token},
-		"channel":   {channel},
+		"channel":   {channelID},
 		"thread_ts": {thread_ts},
 	}
 	response, err := channelRequest(ctx, "channels.replies", values, api.debug)

vendor/github.com/nlopes/slack/chat.go

@@ -11,6 +11,7 @@ import (
 const (
 	DEFAULT_MESSAGE_USERNAME         = ""
 	DEFAULT_MESSAGE_THREAD_TIMESTAMP = ""
+	DEFAULT_MESSAGE_REPLY_BROADCAST  = false
 	DEFAULT_MESSAGE_ASUSER           = false
 	DEFAULT_MESSAGE_PARSE            = ""
 	DEFAULT_MESSAGE_LINK_NAMES       = 0
@@ -36,6 +37,7 @@ type PostMessageParameters struct {
 	AsUser          bool         `json:"as_user"`
 	Parse           string       `json:"parse"`
 	ThreadTimestamp string       `json:"thread_ts"`
+	ReplyBroadcast  bool         `json:"reply_broadcast"`
 	LinkNames       int          `json:"link_names"`
 	Attachments     []Attachment `json:"attachments"`
 	UnfurlLinks     bool         `json:"unfurl_links"`
@@ -44,12 +46,17 @@ type PostMessageParameters struct {
 	IconEmoji       string       `json:"icon_emoji"`
 	Markdown        bool         `json:"mrkdwn,omitempty"`
 	EscapeText      bool         `json:"escape_text"`
+
+	// chat.postEphemeral support
+	Channel string `json:"channel"`
+	User    string `json:"user"`
 }
 
 // NewPostMessageParameters provides an instance of PostMessageParameters with all the sane default values set
 func NewPostMessageParameters() PostMessageParameters {
 	return PostMessageParameters{
 		Username:    DEFAULT_MESSAGE_USERNAME,
+		User:        DEFAULT_MESSAGE_USERNAME,
 		AsUser:      DEFAULT_MESSAGE_ASUSER,
 		Parse:       DEFAULT_MESSAGE_PARSE,
 		LinkNames:   DEFAULT_MESSAGE_LINK_NAMES,
@@ -102,6 +109,37 @@ func (api *Client) PostMessageContext(ctx context.Context, channel, text string,
 	return respChannel, respTimestamp, err
 }
 
+// PostEphemeral sends an ephemeral message to a user in a channel.
+// Message is escaped by default according to https://api.slack.com/docs/formatting
+// Use http://davestevens.github.io/slack-message-builder/ to help crafting your message.
+func (api *Client) PostEphemeral(channel, userID string, options ...MsgOption) (string, error) {
+	options = append(options, MsgOptionPostEphemeral())
+	return api.PostEphemeralContext(
+		context.Background(),
+		channel,
+		userID,
+		options...,
+	)
+}
+
+// PostEphemeralContext sends an ephemeal message to a user in a channel with a custom context
+// For more details, see PostEphemeral documentation
+func (api *Client) PostEphemeralContext(ctx context.Context, channel, userID string, options ...MsgOption) (string, error) {
+	path, values, err := ApplyMsgOptions(api.config.token, channel, options...)
+	if err != nil {
+		return "", err
+	}
+
+	values.Add("user", userID)
+
+	response, err := chatRequest(ctx, path, values, api.debug)
+	if err != nil {
+		return "", err
+	}
+
+	return response.Timestamp, nil
+}
+
 // UpdateMessage updates a message in a channel
 func (api *Client) UpdateMessage(channel, timestamp, text string) (string, string, string, error) {
 	return api.UpdateMessageContext(context.Background(), channel, timestamp, text)
@@ -171,9 +209,10 @@ func chatRequest(ctx context.Context, path string, values url.Values, debug bool
 type sendMode string
 
 const (
-	chatUpdate      sendMode = "chat.update"
+	chatUpdate        sendMode = "chat.update"
-	chatPostMessage sendMode = "chat.postMessage"
+	chatPostMessage   sendMode = "chat.postMessage"
-	chatDelete      sendMode = "chat.delete"
+	chatDelete        sendMode = "chat.delete"
+	chatPostEphemeral sendMode = "chat.postEphemeral"
 )
 
 type sendConfig struct {
@@ -193,6 +232,15 @@ func MsgOptionPost() MsgOption {
 	}
 }
 
+// MsgOptionPostEphemeral posts an ephemeral message
+func MsgOptionPostEphemeral() MsgOption {
+	return func(config *sendConfig) error {
+		config.mode = chatPostEphemeral
+		config.values.Del("ts")
+		return nil
+	}
+}
+
 // MsgOptionUpdate updates a message based on the timestamp.
 func MsgOptionUpdate(timestamp string) MsgOption {
 	return func(config *sendConfig) error {
@@ -279,6 +327,11 @@ func MsgOptionPostMessageParameters(params PostMessageParameters) MsgOption {
 			config.values.Set("username", string(params.Username))
 		}
 
+		// chat.postEphemeral support
+		if params.User != DEFAULT_MESSAGE_USERNAME {
+			config.values.Set("user", params.User)
+		}
+
 		// never generates an error.
 		MsgOptionAsUser(params.AsUser)(config)
 
@@ -314,6 +367,9 @@ func MsgOptionPostMessageParameters(params PostMessageParameters) MsgOption {
 		if params.ThreadTimestamp != DEFAULT_MESSAGE_THREAD_TIMESTAMP {
 			config.values.Set("thread_ts", params.ThreadTimestamp)
 		}
+		if params.ReplyBroadcast != DEFAULT_MESSAGE_REPLY_BROADCAST {
+			config.values.Set("reply_broadcast", "true")
+		}
 
 		return nil
 	}

vendor/github.com/nlopes/slack/examples/channels/channels.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/nlopes/slack"
+)
+
+func main() {
+	api := slack.New("YOUR_TOKEN_HERE")
+	channels, err := api.GetChannels(false)
+	if err != nil {
+		fmt.Printf("%s\n", err)
+		return
+	}
+	for _, channel := range channels {
+		fmt.Println(channel.Name)
+		// channel is of type conversation & groupConversation
+		// see all available methods in `conversation.go`
+	}
+}

vendor/github.com/nlopes/slack/examples/files/files.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/nlopes/slack"
+)
+
+func main() {
+	api := slack.New("YOUR_TOKEN_HERE")
+	params := slack.FileUploadParameters{
+		Title: "Batman Example",
+		//Filetype: "txt",
+		File: "example.txt",
+		//Content:  "Nan Nan Nan Nan Nan Nan Nan Nan Batman",
+	}
+	file, err := api.UploadFile(params)
+	if err != nil {
+		fmt.Printf("%s\n", err)
+		return
+	}
+	fmt.Printf("Name: %s, URL: %s\n", file.Name, file.URL)
+
+	err = api.DeleteFile(file.ID)
+	if err != nil {
+		fmt.Printf("%s\n", err)
+		return
+	}
+	fmt.Printf("File %s deleted successfully.\n", file.Name)
+}

vendor/github.com/nlopes/slack/examples/groups/groups.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/nlopes/slack"
+)
+
+func main() {
+	api := slack.New("YOUR_TOKEN_HERE")
+	// If you set debugging, it will log all requests to the console
+	// Useful when encountering issues
+	// api.SetDebug(true)
+	groups, err := api.GetGroups(false)
+	if err != nil {
+		fmt.Printf("%s\n", err)
+		return
+	}
+	for _, group := range groups {
+		fmt.Printf("ID: %s, Name: %s\n", group.ID, group.Name)
+	}
+}

vendor/github.com/nlopes/slack/examples/ims/ims.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/nlopes/slack"
+)
+
+func main() {
+	api := slack.New("YOUR_TOKEN_HERE")
+
+	userID := "USER_ID"
+
+	_, _, channelID, err := api.OpenIMChannel(userID)
+
+	if err != nil {
+		fmt.Printf("%s\n", err)
+	}
+
+	api.PostMessage(channelID, "Hello World!", slack.PostMessageParameters{})
+}

vendor/github.com/nlopes/slack/examples/messages/messages.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/nlopes/slack"
+)
+
+func main() {
+	api := slack.New("YOUR_TOKEN_HERE")
+	params := slack.PostMessageParameters{}
+	attachment := slack.Attachment{
+		Pretext: "some pretext",
+		Text:    "some text",
+		// Uncomment the following part to send a field too
+		/*
+			Fields: []slack.AttachmentField{
+				slack.AttachmentField{
+					Title: "a",
+					Value: "no",
+				},
+			},
+		*/
+	}
+	params.Attachments = []slack.Attachment{attachment}
+	channelID, timestamp, err := api.PostMessage("CHANNEL_ID", "Some text", params)
+	if err != nil {
+		fmt.Printf("%s\n", err)
+		return
+	}
+	fmt.Printf("Message successfully sent to channel %s at %s", channelID, timestamp)
+}

vendor/github.com/nlopes/slack/examples/pins/pins.go

@@ -0,0 +1,123 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+
+	"github.com/nlopes/slack"
+)
+
+/*
+   WARNING: This example is destructive in the sense that it create a channel called testpinning
+*/
+func main() {
+	var (
+		apiToken string
+		debug    bool
+	)
+
+	flag.StringVar(&apiToken, "token", "YOUR_TOKEN_HERE", "Your Slack API Token")
+	flag.BoolVar(&debug, "debug", false, "Show JSON output")
+	flag.Parse()
+
+	api := slack.New(apiToken)
+	if debug {
+		api.SetDebug(true)
+	}
+
+	var (
+		postAsUserName  string
+		postAsUserID    string
+		postToChannelID string
+	)
+
+	// Find the user to post as.
+	authTest, err := api.AuthTest()
+	if err != nil {
+		fmt.Printf("Error getting channels: %s\n", err)
+		return
+	}
+
+	channelName := "testpinning"
+
+	// Post as the authenticated user.
+	postAsUserName = authTest.User
+	postAsUserID = authTest.UserID
+
+	// Create a temporary channel
+	channel, err := api.CreateChannel(channelName)
+
+	if err != nil {
+		// If the channel exists, that means we just need to unarchive it
+		if err.Error() == "name_taken" {
+			err = nil
+			channels, err := api.GetChannels(false)
+			if err != nil {
+				fmt.Println("Could not retrieve channels")
+				return
+			}
+			for _, archivedChannel := range channels {
+				if archivedChannel.Name == channelName {
+					if archivedChannel.IsArchived {
+						err = api.UnarchiveChannel(archivedChannel.ID)
+						if err != nil {
+							fmt.Printf("Could not unarchive %s: %s\n", archivedChannel.ID, err)
+							return
+						}
+					}
+					channel = &archivedChannel
+					break
+				}
+			}
+		}
+		if err != nil {
+			fmt.Printf("Error setting test channel for pinning: %s\n", err)
+			return
+		}
+	}
+	postToChannelID = channel.ID
+
+	fmt.Printf("Posting as %s (%s) in channel %s\n", postAsUserName, postAsUserID, postToChannelID)
+
+	// Post a message.
+	postParams := slack.PostMessageParameters{}
+	channelID, timestamp, err := api.PostMessage(postToChannelID, "Is this any good?", postParams)
+	if err != nil {
+		fmt.Printf("Error posting message: %s\n", err)
+		return
+	}
+
+	// Grab a reference to the message.
+	msgRef := slack.NewRefToMessage(channelID, timestamp)
+
+	// Add message pin to channel
+	if err := api.AddPin(channelID, msgRef); err != nil {
+		fmt.Printf("Error adding pin: %s\n", err)
+		return
+	}
+
+	// List all of the users pins.
+	listPins, _, err := api.ListPins(channelID)
+	if err != nil {
+		fmt.Printf("Error listing pins: %s\n", err)
+		return
+	}
+	fmt.Printf("\n")
+	fmt.Printf("All pins by %s...\n", authTest.User)
+	for _, item := range listPins {
+		fmt.Printf(" > Item type: %s\n", item.Type)
+	}
+
+	// Remove the pin.
+	err = api.RemovePin(channelID, msgRef)
+	if err != nil {
+		fmt.Printf("Error remove pin: %s\n", err)
+		return
+	}
+
+	if err = api.ArchiveChannel(channelID); err != nil {
+		fmt.Printf("Error archiving channel: %s\n", err)
+		return
+	}
+
+}

vendor/github.com/nlopes/slack/examples/reactions/reactions.go

@@ -0,0 +1,126 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+
+	"github.com/nlopes/slack"
+)
+
+func main() {
+	var (
+		apiToken string
+		debug    bool
+	)
+
+	flag.StringVar(&apiToken, "token", "YOUR_TOKEN_HERE", "Your Slack API Token")
+	flag.BoolVar(&debug, "debug", false, "Show JSON output")
+	flag.Parse()
+
+	api := slack.New(apiToken)
+	if debug {
+		api.SetDebug(true)
+	}
+
+	var (
+		postAsUserName  string
+		postAsUserID    string
+		postToUserName  string
+		postToUserID    string
+		postToChannelID string
+	)
+
+	// Find the user to post as.
+	authTest, err := api.AuthTest()
+	if err != nil {
+		fmt.Printf("Error getting channels: %s\n", err)
+		return
+	}
+
+	// Post as the authenticated user.
+	postAsUserName = authTest.User
+	postAsUserID = authTest.UserID
+
+	// Posting to DM with self causes a conversation with slackbot.
+	postToUserName = authTest.User
+	postToUserID = authTest.UserID
+
+	// Find the channel.
+	_, _, chanID, err := api.OpenIMChannel(postToUserID)
+	if err != nil {
+		fmt.Printf("Error opening IM: %s\n", err)
+		return
+	}
+	postToChannelID = chanID
+
+	fmt.Printf("Posting as %s (%s) in DM with %s (%s), channel %s\n", postAsUserName, postAsUserID, postToUserName, postToUserID, postToChannelID)
+
+	// Post a message.
+	postParams := slack.PostMessageParameters{}
+	channelID, timestamp, err := api.PostMessage(postToChannelID, "Is this any good?", postParams)
+	if err != nil {
+		fmt.Printf("Error posting message: %s\n", err)
+		return
+	}
+
+	// Grab a reference to the message.
+	msgRef := slack.NewRefToMessage(channelID, timestamp)
+
+	// React with :+1:
+	if err := api.AddReaction("+1", msgRef); err != nil {
+		fmt.Printf("Error adding reaction: %s\n", err)
+		return
+	}
+
+	// React with :-1:
+	if err := api.AddReaction("cry", msgRef); err != nil {
+		fmt.Printf("Error adding reaction: %s\n", err)
+		return
+	}
+
+	// Get all reactions on the message.
+	msgReactions, err := api.GetReactions(msgRef, slack.NewGetReactionsParameters())
+	if err != nil {
+		fmt.Printf("Error getting reactions: %s\n", err)
+		return
+	}
+	fmt.Printf("\n")
+	fmt.Printf("%d reactions to message...\n", len(msgReactions))
+	for _, r := range msgReactions {
+		fmt.Printf("  %d users say %s\n", r.Count, r.Name)
+	}
+
+	// List all of the users reactions.
+	listReactions, _, err := api.ListReactions(slack.NewListReactionsParameters())
+	if err != nil {
+		fmt.Printf("Error listing reactions: %s\n", err)
+		return
+	}
+	fmt.Printf("\n")
+	fmt.Printf("All reactions by %s...\n", authTest.User)
+	for _, item := range listReactions {
+		fmt.Printf("%d on a %s...\n", len(item.Reactions), item.Type)
+		for _, r := range item.Reactions {
+			fmt.Printf("  %s (along with %d others)\n", r.Name, r.Count-1)
+		}
+	}
+
+	// Remove the :cry: reaction.
+	err = api.RemoveReaction("cry", msgRef)
+	if err != nil {
+		fmt.Printf("Error remove reaction: %s\n", err)
+		return
+	}
+
+	// Get all reactions on the message.
+	msgReactions, err = api.GetReactions(msgRef, slack.NewGetReactionsParameters())
+	if err != nil {
+		fmt.Printf("Error getting reactions: %s\n", err)
+		return
+	}
+	fmt.Printf("\n")
+	fmt.Printf("%d reactions to message after removing cry...\n", len(msgReactions))
+	for _, r := range msgReactions {
+		fmt.Printf("  %d users say %s\n", r.Count, r.Name)
+	}
+}

vendor/github.com/nlopes/slack/examples/stars/stars.go

@@ -0,0 +1,46 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+
+	"github.com/nlopes/slack"
+)
+
+func main() {
+	var (
+		apiToken string
+		debug    bool
+	)
+
+	flag.StringVar(&apiToken, "token", "YOUR_TOKEN_HERE", "Your Slack API Token")
+	flag.BoolVar(&debug, "debug", false, "Show JSON output")
+	flag.Parse()
+
+	api := slack.New(apiToken)
+	if debug {
+		api.SetDebug(true)
+	}
+
+	// Get all stars for the usr.
+	params := slack.NewStarsParameters()
+	starredItems, _, err := api.GetStarred(params)
+	if err != nil {
+		fmt.Printf("Error getting stars: %s\n", err)
+		return
+	}
+	for _, s := range starredItems {
+		var desc string
+		switch s.Type {
+		case slack.TYPE_MESSAGE:
+			desc = s.Message.Text
+		case slack.TYPE_FILE:
+			desc = s.File.Name
+		case slack.TYPE_FILE_COMMENT:
+			desc = s.File.Name + " - " + s.Comment.Comment
+		case slack.TYPE_CHANNEL, slack.TYPE_IM, slack.TYPE_GROUP:
+			desc = s.Channel
+		}
+		fmt.Printf("Starred %s: %s\n", s.Type, desc)
+	}
+}

vendor/github.com/nlopes/slack/examples/team/team.go

@@ -0,0 +1,25 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/nlopes/slack"
+)
+
+func main() {
+	api := slack.New("YOUR_TOKEN_HERE")
+	//Example for single user
+	billingActive, err := api.GetBillableInfo("U023BECGF")
+	if err != nil {
+		fmt.Printf("%s\n", err)
+		return
+	}
+	fmt.Printf("ID: U023BECGF, BillingActive: %v\n\n\n", billingActive["U023BECGF"])
+
+	//Example for team
+	billingActiveForTeam, _ := api.GetBillableInfoForTeam()
+	for id, value := range billingActiveForTeam {
+		fmt.Printf("ID: %v, BillingActive: %v\n", id, value)
+	}
+
+}

vendor/github.com/nlopes/slack/examples/users/users.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/nlopes/slack"
+)
+
+func main() {
+	api := slack.New("YOUR_TOKEN_HERE")
+	user, err := api.GetUserInfo("U023BECGF")
+	if err != nil {
+		fmt.Printf("%s\n", err)
+		return
+	}
+	fmt.Printf("ID: %s, Fullname: %s, Email: %s\n", user.ID, user.Profile.RealName, user.Profile.Email)
+}

vendor/github.com/nlopes/slack/examples/websocket/websocket.go

@@ -0,0 +1,54 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+
+	"github.com/nlopes/slack"
+)
+
+func main() {
+	api := slack.New("YOUR TOKEN HERE")
+	logger := log.New(os.Stdout, "slack-bot: ", log.Lshortfile|log.LstdFlags)
+	slack.SetLogger(logger)
+	api.SetDebug(true)
+
+	rtm := api.NewRTM()
+	go rtm.ManageConnection()
+
+	for msg := range rtm.IncomingEvents {
+		fmt.Print("Event Received: ")
+		switch ev := msg.Data.(type) {
+		case *slack.HelloEvent:
+			// Ignore hello
+
+		case *slack.ConnectedEvent:
+			fmt.Println("Infos:", ev.Info)
+			fmt.Println("Connection counter:", ev.ConnectionCount)
+			// Replace C2147483705 with your Channel ID
+			rtm.SendMessage(rtm.NewOutgoingMessage("Hello world", "C2147483705"))
+
+		case *slack.MessageEvent:
+			fmt.Printf("Message: %v\n", ev)
+
+		case *slack.PresenceChangeEvent:
+			fmt.Printf("Presence Change: %v\n", ev)
+
+		case *slack.LatencyReport:
+			fmt.Printf("Current latency: %v\n", ev.Value)
+
+		case *slack.RTMError:
+			fmt.Printf("Error: %s\n", ev.Error())
+
+		case *slack.InvalidAuthEvent:
+			fmt.Printf("Invalid credentials")
+			return
+
+		default:
+
+			// Ignore other events..
+			// fmt.Printf("Unexpected: %v\n", msg.Data)
+		}
+	}
+}

vendor/github.com/nlopes/slack/files.go

@@ -267,10 +267,7 @@ func (api *Client) DeleteFileContext(ctx context.Context, fileID string) error {
 		"file":  {fileID},
 	}
 	_, err := fileRequest(ctx, "files.delete", values, api.debug)
-	if err != nil {
+	return err
-		return err
-	}
-	return nil
 
 }
 

vendor/github.com/nlopes/slack/groups.go

@@ -208,10 +208,7 @@ func (api *Client) LeaveGroupContext(ctx context.Context, group string) error {
 		"channel": {group},
 	}
 	_, err := groupRequest(ctx, "groups.leave", values, api.debug)
-	if err != nil {
+	return err
-		return err
-	}
-	return nil
 }
 
 // KickUserFromGroup kicks a user from a group
@@ -227,10 +224,7 @@ func (api *Client) KickUserFromGroupContext(ctx context.Context, group, user str
 		"user":    {user},
 	}
 	_, err := groupRequest(ctx, "groups.kick", values, api.debug)
-	if err != nil {
+	return err
-		return err
-	}
-	return nil
 }
 
 // GetGroups retrieves all groups
@@ -289,10 +283,7 @@ func (api *Client) SetGroupReadMarkContext(ctx context.Context, group, ts string
 		"ts":      {ts},
 	}
 	_, err := groupRequest(ctx, "groups.mark", values, api.debug)
-	if err != nil {
+	return err
-		return err
-	}
-	return nil
 }
 
 // OpenGroup opens a private group

vendor/github.com/nlopes/slack/messages.go

@@ -3,6 +3,7 @@ package slack
 // OutgoingMessage is used for the realtime API, and seems incomplete.
 type OutgoingMessage struct {
 	ID              int    `json:"id"`
+	// channel ID
 	Channel         string `json:"channel,omitempty"`
 	Text            string `json:"text,omitempty"`
 	Type            string `json:"type,omitempty"`
@@ -121,12 +122,12 @@ type Pong struct {
 // NewOutgoingMessage prepares an OutgoingMessage that the user can
 // use to send a message. Use this function to properly set the
 // messageID.
-func (rtm *RTM) NewOutgoingMessage(text string, channel string) *OutgoingMessage {
+func (rtm *RTM) NewOutgoingMessage(text string, channelID string) *OutgoingMessage {
 	id := rtm.idGen.Next()
 	return &OutgoingMessage{
 		ID:      id,
 		Type:    "message",
-		Channel: channel,
+		Channel: channelID,
 		Text:    text,
 	}
 }
@@ -134,11 +135,11 @@ func (rtm *RTM) NewOutgoingMessage(text string, channel string) *OutgoingMessage
 // NewTypingMessage prepares an OutgoingMessage that the user can
 // use to send as a typing indicator. Use this function to properly set the
 // messageID.
-func (rtm *RTM) NewTypingMessage(channel string) *OutgoingMessage {
+func (rtm *RTM) NewTypingMessage(channelID string) *OutgoingMessage {
 	id := rtm.idGen.Next()
 	return &OutgoingMessage{
 		ID:      id,
 		Type:    "typing",
-		Channel: channel,
+		Channel: channelID,
 	}
 }

vendor/github.com/nlopes/slack/misc.go

@@ -13,6 +13,7 @@ import (
 	"net/url"
 	"os"
 	"path/filepath"
+	"strconv"
 	"strings"
 	"time"
 )
@@ -42,6 +43,14 @@ func (s WebError) Error() string {
 	return string(s)
 }
 
+type RateLimitedError struct {
+	RetryAfter time.Duration
+}
+
+func (e *RateLimitedError) Error() string {
+	return fmt.Sprintf("Slack rate limit exceeded, retry after %s", e.RetryAfter)
+}
+
 func fileUploadReq(ctx context.Context, path, fieldname, filename string, values url.Values, r io.Reader) (*http.Request, error) {
 	body := &bytes.Buffer{}
 	wr := multipart.NewWriter(body)
@@ -79,12 +88,7 @@ func parseResponseBody(body io.ReadCloser, intf *interface{}, debug bool) error
 		logger.Printf("parseResponseBody: %s\n", string(response))
 	}
 
-	err = json.Unmarshal(response, &intf)
+	return json.Unmarshal(response, &intf)
-	if err != nil {
-		return err
-	}
-
-	return nil
 }
 
 func postLocalWithMultipartResponse(ctx context.Context, path, fpath, fieldname string, values url.Values, intf interface{}, debug bool) error {
@@ -112,8 +116,16 @@ func postWithMultipartResponse(ctx context.Context, path, name, fieldname string
 	}
 	defer resp.Body.Close()
 
+	if resp.StatusCode == http.StatusTooManyRequests {
+		retry, err := strconv.ParseInt(resp.Header.Get("Retry-After"), 10, 64)
+		if err != nil {
+			return err
+		}
+		return &RateLimitedError{time.Duration(retry) * time.Second}
+	}
+
 	// Slack seems to send an HTML body along with 5xx error codes. Don't parse it.
-	if resp.StatusCode != 200 {
+	if resp.StatusCode != http.StatusOK {
 		logResponse(resp, debug)
 		return fmt.Errorf("Slack server error: %s.", resp.Status)
 	}
@@ -136,8 +148,16 @@ func postForm(ctx context.Context, endpoint string, values url.Values, intf inte
 	}
 	defer resp.Body.Close()
 
+	if resp.StatusCode == http.StatusTooManyRequests {
+		retry, err := strconv.ParseInt(resp.Header.Get("Retry-After"), 10, 64)
+		if err != nil {
+			return err
+		}
+		return &RateLimitedError{time.Duration(retry) * time.Second}
+	}
+
 	// Slack seems to send an HTML body along with 5xx error codes. Don't parse it.
-	if resp.StatusCode != 200 {
+	if resp.StatusCode != http.StatusOK {
 		logResponse(resp, debug)
 		return fmt.Errorf("Slack server error: %s.", resp.Status)
 	}

vendor/github.com/nlopes/slack/rtm.go

@@ -27,17 +27,8 @@ func (api *Client) StartRTMContext(ctx context.Context) (info *Info, websocketUR
 	if !response.Ok {
 		return nil, "", response.Error
 	}
-
-	// websocket.Dial does not accept url without the port (yet)
-	// Fixed by: https://github.com/golang/net/commit/5058c78c3627b31e484a81463acd51c7cecc06f3
-	// but slack returns the address with no port, so we have to fix it
 	api.Debugln("Using URL:", response.Info.URL)
-	websocketURL, err = websocketizeURLPort(response.Info.URL)
+	return &response.Info, response.Info.URL, nil
-	if err != nil {
-		return nil, "", fmt.Errorf("parsing response URL: %s", err)
-	}
-
-	return &response.Info, websocketURL, nil
 }
 
 // ConnectRTM calls the "rtm.connect" endpoint and returns the provided URL and the compact Info block.
@@ -59,17 +50,8 @@ func (api *Client) ConnectRTMContext(ctx context.Context) (info *Info, websocket
 	if !response.Ok {
 		return nil, "", response.Error
 	}
-
-	// websocket.Dial does not accept url without the port (yet)
-	// Fixed by: https://github.com/golang/net/commit/5058c78c3627b31e484a81463acd51c7cecc06f3
-	// but slack returns the address with no port, so we have to fix it
 	api.Debugln("Using URL:", response.Info.URL)
-	websocketURL, err = websocketizeURLPort(response.Info.URL)
+	return &response.Info, response.Info.URL, nil
-	if err != nil {
-		return nil, "", fmt.Errorf("parsing response URL: %s", err)
-	}
-
-	return &response.Info, websocketURL, nil
 }
 
 // NewRTM returns a RTM, which provides a fully managed connection to
@@ -90,6 +72,7 @@ func (api *Client) NewRTMWithOptions(options *RTMOptions) *RTM {
 		isConnected:      false,
 		wasIntentional:   true,
 		killChannel:      make(chan bool),
+		disconnected:     make(chan struct{}),
 		forcePing:        make(chan bool),
 		rawEvents:        make(chan json.RawMessage),
 		idGen:            NewSafeID(1),

vendor/github.com/nlopes/slack/slack.go

@@ -3,12 +3,13 @@ package slack
 import (
 	"context"
 	"errors"
+	"fmt"
 	"log"
 	"net/url"
 	"os"
 )
 
-var logger *log.Logger // A logger that can be set by consumers
+var logger stdLogger // A logger that can be set by consumers
 /*
   Added as a var so that we can change this for testing purposes
 */
@@ -41,12 +42,31 @@ type Client struct {
 	debug bool
 }
 
+// stdLogger is a logger interface compatible with both stdlib and some
+// 3rd party loggers such as logrus.
+type stdLogger interface {
+	Print(...interface{})
+	Printf(string, ...interface{})
+	Println(...interface{})
+
+	Fatal(...interface{})
+	Fatalf(string, ...interface{})
+	Fatalln(...interface{})
+
+	Panic(...interface{})
+	Panicf(string, ...interface{})
+	Panicln(...interface{})
+
+	Output(int, string) error
+}
+
 // SetLogger let's library users supply a logger, so that api debugging
 // can be logged along with the application's debugging info.
-func SetLogger(l *log.Logger) {
+func SetLogger(l stdLogger) {
 	logger = l
 }
 
+// New creates new Client.
 func New(token string) *Client {
 	s := &Client{}
 	s.config.token = token
@@ -83,12 +103,12 @@ func (api *Client) SetDebug(debug bool) {
 
 func (api *Client) Debugf(format string, v ...interface{}) {
 	if api.debug {
-		logger.Printf(format, v...)
+		logger.Output(2, fmt.Sprintf(format, v...))
 	}
 }
 
 func (api *Client) Debugln(v ...interface{}) {
 	if api.debug {
-		logger.Println(v...)
+		logger.Output(2, fmt.Sprintln(v...))
 	}
 }

vendor/github.com/nlopes/slack/users.go

@@ -200,10 +200,7 @@ func (api *Client) SetUserAsActiveContext(ctx context.Context) error {
 		"token": {api.config.token},
 	}
 	_, err := userRequest(ctx, "users.setActive", values, api.debug)
-	if err != nil {
+	return err
-		return err
-	}
-	return nil
 }
 
 // SetUserPresence changes the currently authenticated user presence
@@ -247,8 +244,8 @@ func (api *Client) GetUserIdentityContext(ctx context.Context) (*UserIdentityRes
 }
 
 // SetUserPhoto changes the currently authenticated user's profile image
-func (api *Client) SetUserPhoto(ctx context.Context, image string, params UserSetPhotoParams) error {
+func (api *Client) SetUserPhoto(image string, params UserSetPhotoParams) error {
-	return api.SetUserPhoto(context.Background(), image, params)
+	return api.SetUserPhotoContext(context.Background(), image, params)
 }
 
 // SetUserPhotoContext changes the currently authenticated user's profile image using a custom context

vendor/github.com/nlopes/slack/websocket.go

@@ -27,6 +27,7 @@ type RTM struct {
 	IncomingEvents   chan RTMEvent
 	outgoingMessages chan OutgoingMessage
 	killChannel      chan bool
+	disconnected     chan struct{} // disconnected is closed when Disconnect is invoked, regardless of connection state. Allows for ManagedConnection to not leak.
 	forcePing        chan bool
 	rawEvents        chan json.RawMessage
 	wasIntentional   bool
@@ -59,9 +60,14 @@ type RTMOptions struct {
 
 // Disconnect and wait, blocking until a successful disconnection.
 func (rtm *RTM) Disconnect() error {
+	// this channel is always closed on disconnect. lets the ManagedConnection() function
+	// properly clean up.
+	close(rtm.disconnected)
+
 	if !rtm.isConnected {
 		return errors.New("Invalid call to Disconnect - Slack API is already disconnected")
 	}
+
 	rtm.killChannel <- true
 	return nil
 }

vendor/github.com/nlopes/slack/websocket_managed_conn.go

@@ -99,6 +99,15 @@ func (rtm *RTM) connect(connectionCount int, useRTMStart bool) (*Info, *websocke
 			Attempt:  boff.attempts,
 			ErrorObj: err,
 		}}
+
+		// check if Disconnect() has been invoked.
+		select {
+		case _ = <-rtm.disconnected:
+			rtm.IncomingEvents <- RTMEvent{"disconnected", &DisconnectedEvent{Intentional: true}}
+			return nil, nil, fmt.Errorf("disconnect received while trying to connect")
+		default:
+		}
+
 		// get time we should wait before attempting to connect again
 		dur := boff.Duration()
 		rtm.Debugf("reconnection %d failed: %s", boff.attempts+1, err)
@@ -124,7 +133,8 @@ func (rtm *RTM) startRTMAndDial(useRTMStart bool) (*Info, *websocket.Conn, error
 		return nil, nil, err
 	}
 
-	conn, err := websocketProxyDial(url, "http://api.slack.com")
+	// Only use HTTPS for connections to prevent MITM attacks on the connection.
+	conn, err := websocketProxyDial(url, "https://api.slack.com")
 	if err != nil {
 		return nil, nil, err
 	}
@@ -317,10 +327,13 @@ func (rtm *RTM) handleAck(event json.RawMessage) {
 		rtm.Debugln(" -> Erroneous 'ack' event:", string(event))
 		return
 	}
+
 	if ack.Ok {
 		rtm.IncomingEvents <- RTMEvent{"ack", ack}
-	} else {
+	} else if ack.RTMResponse.Error != nil {
 		rtm.IncomingEvents <- RTMEvent{"ack_error", &AckErrorEvent{ack.Error}}
+	} else {
+		rtm.IncomingEvents <- RTMEvent{"ack_error", &AckErrorEvent{fmt.Errorf("ack decode failure")}}
 	}
 }
 

vendor/github.com/nlopes/slack/websocket_proxy.go

@@ -32,8 +32,7 @@ func websocketHTTPConnect(proxy, urlString string) (net.Conn, error) {
 	}
 
 	cc := httputil.NewProxyClientConn(p, nil)
-	cc.Do(&req)
+	if _, err := cc.Do(&req); err != nil {
-	if err != nil && err != httputil.ErrPersistEOF {
 		return nil, err
 	}
 

vendor/manifest

@@ -295,11 +295,11 @@
 			"notests": true
 		},
 		{
-			"importpath": "github.com/matterbridge/slack",
+			"importpath": "github.com/matterbridge/gomatrix",
-			"repository": "https://github.com/matterbridge/slack",
+			"repository": "https://github.com/matterbridge/gomatrix",
 			"vcs": "git",
-			"revision": "1c6e6305bf9c07fc603c9cf28f09ab0517a03120",
+			"revision": "78ac6a1a0f5fb9eb1684d85a3ed581a742fe4c79",
-			"branch": "matterbridge",
+			"branch": "work",
 			"notests": true
 		},
 		{
@@ -441,6 +441,14 @@
 			"path": "/i18n",
 			"notests": true
 		},
+		{
+			"importpath": "github.com/nlopes/slack",
+			"repository": "https://github.com/nlopes/slack",
+			"vcs": "git",
+			"revision": "107290b5bbaf3e634833346bb4ff389b1c782bc7",
+			"branch": "master",
+			"notests": true
+		},
 		{
 			"importpath": "github.com/paulrosania/go-charset",
 			"repository": "https://github.com/paulrosania/go-charset",
@@ -712,7 +720,7 @@
 			"importpath": "golang.org/x/net/websocket",
 			"repository": "https://go.googlesource.com/net",
 			"vcs": "git",
-			"revision": "6c23252515492caf9b228a9d5cabcdbde29f7f82",
+			"revision": "434ec0c7fe3742c984919a691b2018a6e9694425",
 			"branch": "master",
 			"path": "/websocket",
 			"notests": true