Release v1.7.0

Add 2 extra options `MediaServerUpload` and `MediaServerDownload`, where
the URL for upload and download can be specified.

See https://github.com/42wim/matterbridge/wiki/Mediaserver-setup-%5Badvanced%5D
for an example with caddy

.github/ISSUE_TEMPLATE.md

@@ -1,3 +1,5 @@
+If you have a configuration problem, please first try to create a basic configuration following the instructions on [the wiki](https://github.com/42wim/matterbridge/wiki/How-to-create-your-config) before filing an issue.
+
 Please answer the following questions. 
 
 ### Which version of matterbridge are you using?

.travis.yml

@@ -0,0 +1,49 @@
+language: go
+go:
+    #- 1.7.x
+    - 1.9.x
+      # - tip
+
+# we have everything vendored
+install: true
+
+env:
+    - GOOS=linux GOARCH=amd64
+      #    - GOOS=windows GOARCH=amd64
+      #- GOOS=linux GOARCH=arm
+
+matrix:
+  # It's ok if our code fails on unstable development versions of Go.
+  allow_failures:
+    - go: tip
+  # Don't wait for tip tests to finish. Mark the test run green if the
+  # tests pass on the stable versions of Go.
+  fast_finish: true
+
+notifications:
+      email: false
+
+before_script:
+  - MY_VERSION=$(git describe --tags)
+  - GO_FILES=$(find . -iname '*.go' | grep -v /vendor/)  # All the .go files, excluding vendor/
+  - PKGS=$(go list ./... | grep -v /vendor/)             # All the import paths, excluding vendor/
+#  - go get github.com/golang/lint/golint                 # Linter
+  - go get honnef.co/go/tools/cmd/megacheck              # Badass static analyzer/linter
+
+# Anything in before_script: that returns a nonzero exit code will
+# flunk the build and immediately stop. It's sorta like having
+# set -e enabled in bash. 
+script:
+  - test -z $(gofmt -s -l $GO_FILES)  # Fail if a .go file hasn't been formatted with gofmt
+  - go test -v -race $PKGS            # Run all the tests with the race detector enabled
+  - go vet $PKGS                      # go vet is the official Go static analyzer
+  - megacheck $PKGS                   # "go vet on steroids" + linter
+  - /bin/bash ci/bintray.sh
+  #- golint -set_exit_status $PKGS     # one last linter
+
+deploy:
+  provider: bintray
+  file: ci/deploy.json
+  user: 42wim
+  key:
+     secure: "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"

README-0.6.md

@@ -1,115 +0,0 @@
-# matterbridge
-
-Simple bridge between mattermost, IRC, XMPP, Gitter and Slack
-
-* Relays public channel messages between mattermost, IRC, XMPP, Gitter and Slack. Pick and mix.
-* Supports multiple channels.
-* Matterbridge can also work with private groups on your mattermost.
-
-Look at [matterbridge.conf.sample] (https://github.com/42wim/matterbridge/blob/master/matterbridge.conf.sample) for documentation and an example.
-
-## Changelog
-Since v0.6.1 support for XMPP, Gitter and Slack is added. More details in [changelog.md] (https://github.com/42wim/matterbridge/blob/master/changelog.md)
-
-## Requirements:
-Accounts to one of the supported bridges
-* [Mattermost] (https://github.com/mattermost/platform/)
-* [IRC] (http://www.mirc.com/servers.html)
-* [XMPP] (https://jabber.org)
-* [Gitter] (https://gitter.im)
-* [Slack] (https://www.slack.com)
-
-## binaries
-Binaries can be found [here] (https://github.com/42wim/matterbridge/releases/)
-* For use with mattermost 3.3.0+ [v0.6.1](https://github.com/42wim/matterircd/releases/tag/v0.6.1)
-* For use with mattermost 3.0.0-3.2.0 [v0.5.0](https://github.com/42wim/matterircd/releases/tag/v0.5.0)
-
-
-## Docker
-Create your matterbridge.conf file locally eg in ```/tmp/matterbridge.conf```
-
-```
-docker run -ti -v /tmp/matterbridge.conf:/matterbridge.conf 42wim/matterbridge:0.6.1
-```
-
-## Compatibility
-### Mattermost 
-* Matterbridge v0.6.1 works with mattermost 3.3.0 and higher [3.3.0 release](https://github.com/mattermost/platform/releases/tag/v3.3.0)
-* Matterbridge v0.5.0 works with mattermost 3.0.0 - 3.2.0 [3.2.0 release](https://github.com/mattermost/platform/releases/tag/v3.2.0)
-
-
-#### Webhooks version
-* Configured incoming/outgoing [webhooks](https://www.mattermost.org/webhooks/) on your mattermost instance.
-
-#### Plus (API) version
-* A dedicated user(bot) on your mattermost instance.
-
-
-## building
-Go 1.6+ is required. Make sure you have [Go](https://golang.org/doc/install) properly installed, including setting up your [GOPATH] (https://golang.org/doc/code.html#GOPATH)
-
-```
-cd $GOPATH
-go get github.com/42wim/matterbridge
-```
-
-You should now have matterbridge binary in the bin directory:
-
-```
-$ ls bin/
-matterbridge
-```
-
-## running
-1) Copy the matterbridge.conf.sample to matterbridge.conf in the same directory as the matterbridge binary.  
-2) Edit matterbridge.conf with the settings for your environment. See below for more config information.  
-3) Now you can run matterbridge. 
-
-```
-Usage of ./matterbridge:
-  -conf string
-        config file (default "matterbridge.conf")
-  -debug
-        enable debug
-  -plus
-        running using API instead of webhooks (deprecated, set Plus flag in [general] config)
-  -version
-        show version
-```
-
-## config
-### matterbridge
-matterbridge looks for matterbridge.conf in current directory. (use -conf to specify another file)
-
-Look at [matterbridge.conf.sample] (https://github.com/42wim/matterbridge/blob/master/matterbridge.conf.sample) for an example.
-
-### mattermost
-#### webhooks version
-You'll have to configure the incoming and outgoing webhooks. 
-
-* incoming webhooks
-Go to "account settings" - integrations - "incoming webhooks".  
-Choose a channel at "Add a new incoming webhook", this will create a webhook URL right below.  
-This URL should be set in the matterbridge.conf in the [mattermost] section (see above)  
-
-* outgoing webhooks
-Go to "account settings" - integrations - "outgoing webhooks".  
-Choose a channel (the same as the one from incoming webhooks) and fill in the address and port of the server matterbridge will run on.  
-
-e.g. http://192.168.1.1:9999 (192.168.1.1:9999 is the BindAddress specified in [mattermost] section of matterbridge.conf)
-
-#### plus version
-You'll have to create a new dedicated user on your mattermost instance.
-Specify the login and password in [mattermost] section of matterbridge.conf
-
-## FAQ
-Please look at [matterbridge.conf.sample] (https://github.com/42wim/matterbridge/blob/master/matterbridge.conf.sample) for more information first. 
-### Mattermost doesn't show the IRC nicks
-If you're running the webhooks version, this can be fixed by either:
-* enabling "override usernames". See [mattermost documentation](http://docs.mattermost.com/developer/webhooks-incoming.html#enabling-incoming-webhooks)
-* setting ```PrefixMessagesWithNick``` to ```true``` in ```mattermost``` section of your matterbridge.conf.
-
-If you're running the plus version you'll need to:
-* setting ```PrefixMessagesWithNick``` to ```true``` in ```mattermost``` section of your matterbridge.conf.
-
-Also look at the ```RemoteNickFormat``` setting.

README.md

@@ -1,5 +1,9 @@
 # matterbridge
-[![Gitter](https://img.shields.io/gitter/room/nwjs/nw.js.svg)](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)](https://webchat.freenode.net/?channels=matterbridgechat) [![Discord](https://img.shields.io/badge/discord-matterbridge-green.svg)](https://discord.gg/AkKPtrQ) [![Matrix](https://img.shields.io/badge/matrix-matterbridge-green.svg)](https://riot.im/app/#/room/#matterbridge:matrix.org)
+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@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)
 
 ![matterbridge.gif](https://s15.postimg.org/qpjhp6y3f/matterbridge.gif)
 
@@ -9,10 +13,12 @@ Has a REST API.
 # Table of Contents
  * [Features](#features)
  * [Requirements](#requirements)
+ * [Screenshots](https://github.com/42wim/matterbridge/wiki/)
  * [Installing](#installing)
    * [Binaries](#binaries)
    * [Building](#building)
  * [Configuration](#configuration)
+   * [Howto](https://github.com/42wim/matterbridge/wiki/How-to-create-your-config)
    * [Examples](#examples) 
  * [Running](#running)
    * [Docker](#docker)
@@ -23,14 +29,15 @@ Has a REST API.
 # Features
 * Relays public channel messages between multiple mattermost, IRC, XMPP, Gitter, Slack, Discord, Telegram, Rocket.Chat, Hipchat (via xmpp), Matrix and Steam. 
   Pick and mix.
-* Matterbridge can also work with private groups on your mattermost/slack.
+* Support private groups on your mattermost/slack.
 * Allow for bridging the same bridges, which means you can eg bridge between multiple mattermosts.
 * The bridge is now a gateway which has support multiple in and out bridges. (and supports multiple gateways).
+* Edits and delete messages across bridges that support it (mattermost,slack,discord,gitter,telegram)
 * REST API to read/post messages to bridges (WIP).
 
 # Requirements
 Accounts to one of the supported bridges
-* [Mattermost](https://github.com/mattermost/platform/) 3.5.x - 3.10.x
+* [Mattermost](https://github.com/mattermost/platform/) 3.8.x - 3.10.x, 4.x
 * [IRC](http://www.mirc.com/servers.html)
 * [XMPP](https://jabber.org)
 * [Gitter](https://gitter.im)
@@ -41,15 +48,18 @@ 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
-Binaries can be found [here] (https://github.com/42wim/matterbridge/releases/)
-* Latest rc release (with steam support) [v0.16.0-rc2](https://github.com/42wim/matterbridge/releases/latest)
-* Latest stable release [v0.15.0](https://github.com/42wim/matterbridge/releases/tag/v0.15.0)
+* 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
-Go 1.6+ is required. Make sure you have [Go](https://golang.org/doc/install) properly installed, including setting up your [GOPATH] (https://golang.org/doc/code.html#GOPATH)
+Go 1.8+ is required. Make sure you have [Go](https://golang.org/doc/install) properly installed, including setting up your [GOPATH] (https://golang.org/doc/code.html#GOPATH)
 
 ```
 cd $GOPATH
@@ -64,12 +74,12 @@ matterbridge
 ```
 
 # Configuration
-* [matterbridge.toml.sample](https://github.com/42wim/matterbridge/blob/master/matterbridge.toml.sample) for documentation and an example.
-* [matterbridge.toml.simple](https://github.com/42wim/matterbridge/blob/master/matterbridge.toml.simple) for a simple example.
-
-## Create a configuration.
+## Basic configuration
 See [howto](https://github.com/42wim/matterbridge/wiki/How-to-create-your-config) for a step by step walkthrough for creating your configuration.
 
+## Advanced configuration
+* [matterbridge.toml.sample](https://github.com/42wim/matterbridge/blob/master/matterbridge.toml.sample) for documentation and an example.
+
 ## Examples 
 ### Bridge mattermost (off-topic) - irc (#testing)
 ```
@@ -80,12 +90,12 @@ See [howto](https://github.com/42wim/matterbridge/wiki/How-to-create-your-config
 
 [mattermost]
     [mattermost.work]
-    useAPI=true
     Server="yourmattermostserver.tld"
     Team="yourteam"
     Login="yourlogin"
     Password="yourpass"
     PrefixMessagesWithNick=true
+    RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
 [[gateway]]
 name="mygateway"
@@ -103,7 +113,6 @@ enable=true
 ```
 [slack]
 [slack.test]
-useAPI=true
 Token="yourslacktoken"
 PrefixMessagesWithNick=true
 
@@ -129,11 +138,8 @@ RemoteNickFormat="[{PROTOCOL}/{BRIDGE}] <{NICK}> "
 ```
 
 # Running
-1) Copy the matterbridge.toml.sample to matterbridge.toml 
-2) Edit matterbridge.toml with the settings for your environment. 
-3) Now you can run matterbridge.  (```./matterbridge```)   
 
-(Matterbridge will only look for the config file in your current directory, if it isn't there specify -conf "/path/toyour/matterbridge.toml")
+See [howto](https://github.com/42wim/matterbridge/wiki/How-to-create-your-config) for a step by step walkthrough for creating your configuration.
 
 ```
 Usage of ./matterbridge:
@@ -158,18 +164,11 @@ See [changelog.md](https://github.com/42wim/matterbridge/blob/master/changelog.m
 
 # FAQ
 
-Please look at [matterbridge.toml.sample](https://github.com/42wim/matterbridge/blob/master/matterbridge.toml.sample) for more information first.
-
-## Mattermost doesn't show the IRC nicks
-If you're running the webhooks version, this can be fixed by either:
-* enabling "override usernames". See [mattermost documentation](http://docs.mattermost.com/developer/webhooks-incoming.html#enabling-incoming-webhooks)
-* setting ```PrefixMessagesWithNick``` to ```true``` in ```mattermost``` section of your matterbridge.toml.
-
-If you're running the API version you'll need to:
-* setting ```PrefixMessagesWithNick``` to ```true``` in ```mattermost``` section of your matterbridge.toml.
-
-Also look at the ```RemoteNickFormat``` setting.
+See [FAQ](https://github.com/42wim/matterbridge/wiki/FAQ)
 
+Want to tip ? 
+* eth: 0xb3f9b5387c66ad6be892bcb7bbc67862f3abc16f
+* btc: 1N7cKHj5SfqBHBzDJ6kad4BzeqUBBS2zhs
 
 # Thanks
 Matterbridge wouldn't exist without these libraries:
@@ -177,10 +176,10 @@ Matterbridge wouldn't exist without these libraries:
 * echo - https://github.com/labstack/echo
 * gitter - https://github.com/sromku/go-gitter
 * gops - https://github.com/google/gops
-* irc - https://github.com/thoj/go-ircevent
+* irc - https://github.com/lrstanley/girc
 * mattermost - https://github.com/mattermost/platform
 * matrix - https://github.com/matrix-org/gomatrix
 * slack - https://github.com/nlopes/slack
+* steam - https://github.com/Philipp15b/go-steam
 * telegram - https://github.com/go-telegram-bot-api/telegram-bot-api
 * xmpp - https://github.com/mattn/go-xmpp
-

bridge/api/api.go

@@ -1,6 +1,7 @@
 package api
 
 import (
+	"encoding/json"
 	"github.com/42wim/matterbridge/bridge/config"
 	log "github.com/Sirupsen/logrus"
 	"github.com/labstack/echo"
@@ -8,14 +9,13 @@ import (
 	"github.com/zfjagann/golang-ring"
 	"net/http"
 	"sync"
+	"time"
 )
 
 type Api struct {
-	Config   *config.Protocol
-	Remote   chan config.Message
-	Account  string
 	Messages ring.Ring
 	sync.RWMutex
+	*config.BridgeConfig
 }
 
 type ApiMessage struct {
@@ -33,23 +33,21 @@ func init() {
 	flog = log.WithFields(log.Fields{"module": protocol})
 }
 
-func New(cfg config.Protocol, account string, c chan config.Message) *Api {
-	b := &Api{}
+func New(cfg *config.BridgeConfig) *Api {
+	b := &Api{BridgeConfig: cfg}
 	e := echo.New()
 	b.Messages = ring.Ring{}
-	b.Messages.SetCapacity(cfg.Buffer)
-	b.Config = &cfg
-	b.Account = account
-	b.Remote = c
+	b.Messages.SetCapacity(b.Config.Buffer)
 	if b.Config.Token != "" {
 		e.Use(middleware.KeyAuth(func(key string, c echo.Context) (bool, error) {
 			return key == b.Config.Token, nil
 		}))
 	}
 	e.GET("/api/messages", b.handleMessages)
+	e.GET("/api/stream", b.handleStream)
 	e.POST("/api/message", b.handlePostMessage)
 	go func() {
-		flog.Fatal(e.Start(cfg.BindAddress))
+		flog.Fatal(e.Start(b.Config.BindAddress))
 	}()
 	return b
 }
@@ -61,16 +59,20 @@ func (b *Api) Disconnect() error {
 	return nil
 
 }
-func (b *Api) JoinChannel(channel string) error {
+func (b *Api) JoinChannel(channel config.ChannelInfo) error {
 	return nil
 
 }
 
-func (b *Api) Send(msg config.Message) error {
+func (b *Api) Send(msg config.Message) (string, error) {
 	b.Lock()
 	defer b.Unlock()
+	// ignore delete messages
+	if msg.Event == config.EVENT_MSG_DELETE {
+		return "", nil
+	}
 	b.Messages.Enqueue(&msg)
-	return nil
+	return "", nil
 }
 
 func (b *Api) handlePostMessage(c echo.Context) error {
@@ -99,3 +101,24 @@ func (b *Api) handleMessages(c echo.Context) error {
 	b.Messages = ring.Ring{}
 	return nil
 }
+
+func (b *Api) handleStream(c echo.Context) error {
+	c.Response().Header().Set(echo.HeaderContentType, echo.MIMEApplicationJSON)
+	c.Response().WriteHeader(http.StatusOK)
+	closeNotifier := c.Response().CloseNotify()
+	for {
+		select {
+		case <-closeNotifier:
+			return nil
+		default:
+			msg := b.Messages.Dequeue()
+			if msg != nil {
+				if err := json.NewEncoder(c.Response()).Encode(msg); err != nil {
+					return err
+				}
+				c.Response().Flush()
+			}
+			time.Sleep(200 * time.Millisecond)
+		}
+	}
+}

bridge/bridge.go

@@ -10,6 +10,7 @@ import (
 	"github.com/42wim/matterbridge/bridge/mattermost"
 	"github.com/42wim/matterbridge/bridge/rocketchat"
 	"github.com/42wim/matterbridge/bridge/slack"
+	"github.com/42wim/matterbridge/bridge/sshchat"
 	"github.com/42wim/matterbridge/bridge/steam"
 	"github.com/42wim/matterbridge/bridge/telegram"
 	"github.com/42wim/matterbridge/bridge/xmpp"
@@ -19,9 +20,9 @@ import (
 )
 
 type Bridger interface {
-	Send(msg config.Message) error
+	Send(msg config.Message) (string, error)
 	Connect() error
-	JoinChannel(channel string) error
+	JoinChannel(channel config.ChannelInfo) error
 	Disconnect() error
 }
 
@@ -45,66 +46,62 @@ func New(cfg *config.Config, bridge *config.Bridge, c chan config.Message) *Brid
 	b.Protocol = protocol
 	b.Account = bridge.Account
 	b.Joined = make(map[string]bool)
+	bridgeConfig := &config.BridgeConfig{General: &cfg.General, Account: bridge.Account, Remote: c}
 
 	// override config from environment
 	config.OverrideCfgFromEnv(cfg, protocol, name)
 	switch protocol {
 	case "mattermost":
-		b.Config = cfg.Mattermost[name]
-		b.Bridger = bmattermost.New(cfg.Mattermost[name], bridge.Account, c)
+		bridgeConfig.Config = cfg.Mattermost[name]
+		b.Bridger = bmattermost.New(bridgeConfig)
 	case "irc":
-		b.Config = cfg.IRC[name]
-		b.Bridger = birc.New(cfg.IRC[name], bridge.Account, c)
+		bridgeConfig.Config = cfg.IRC[name]
+		b.Bridger = birc.New(bridgeConfig)
 	case "gitter":
-		b.Config = cfg.Gitter[name]
-		b.Bridger = bgitter.New(cfg.Gitter[name], bridge.Account, c)
+		bridgeConfig.Config = cfg.Gitter[name]
+		b.Bridger = bgitter.New(bridgeConfig)
 	case "slack":
-		b.Config = cfg.Slack[name]
-		b.Bridger = bslack.New(cfg.Slack[name], bridge.Account, c)
+		bridgeConfig.Config = cfg.Slack[name]
+		b.Bridger = bslack.New(bridgeConfig)
 	case "xmpp":
-		b.Config = cfg.Xmpp[name]
-		b.Bridger = bxmpp.New(cfg.Xmpp[name], bridge.Account, c)
+		bridgeConfig.Config = cfg.Xmpp[name]
+		b.Bridger = bxmpp.New(bridgeConfig)
 	case "discord":
-		b.Config = cfg.Discord[name]
-		b.Bridger = bdiscord.New(cfg.Discord[name], bridge.Account, c)
+		bridgeConfig.Config = cfg.Discord[name]
+		b.Bridger = bdiscord.New(bridgeConfig)
 	case "telegram":
-		b.Config = cfg.Telegram[name]
-		b.Bridger = btelegram.New(cfg.Telegram[name], bridge.Account, c)
+		bridgeConfig.Config = cfg.Telegram[name]
+		b.Bridger = btelegram.New(bridgeConfig)
 	case "rocketchat":
-		b.Config = cfg.Rocketchat[name]
-		b.Bridger = brocketchat.New(cfg.Rocketchat[name], bridge.Account, c)
+		bridgeConfig.Config = cfg.Rocketchat[name]
+		b.Bridger = brocketchat.New(bridgeConfig)
 	case "matrix":
-		b.Config = cfg.Matrix[name]
-		b.Bridger = bmatrix.New(cfg.Matrix[name], bridge.Account, c)
+		bridgeConfig.Config = cfg.Matrix[name]
+		b.Bridger = bmatrix.New(bridgeConfig)
 	case "steam":
-		b.Config = cfg.Steam[name]
-		b.Bridger = bsteam.New(cfg.Steam[name], bridge.Account, c)
+		bridgeConfig.Config = cfg.Steam[name]
+		b.Bridger = bsteam.New(bridgeConfig)
+	case "sshchat":
+		bridgeConfig.Config = cfg.Sshchat[name]
+		b.Bridger = bsshchat.New(bridgeConfig)
 	case "api":
-		b.Config = cfg.Api[name]
-		b.Bridger = api.New(cfg.Api[name], bridge.Account, c)
+		bridgeConfig.Config = cfg.Api[name]
+		b.Bridger = api.New(bridgeConfig)
 	}
+	b.Config = bridgeConfig.Config
 	return b
 }
 
 func (b *Bridge) JoinChannels() error {
 	err := b.joinChannels(b.Channels, b.Joined)
-	if err != nil {
-		return err
-	}
-	return nil
+	return err
 }
 
 func (b *Bridge) joinChannels(channels map[string]config.ChannelInfo, exists map[string]bool) error {
-	mychannel := ""
 	for ID, channel := range channels {
 		if !exists[ID] {
-			mychannel = channel.Name
 			log.Infof("%s: joining %s (%s)", b.Account, channel.Name, ID)
-			if b.Protocol == "irc" && channel.Options.Key != "" {
-				log.Debugf("using key %s for channel %s", channel.Options.Key, channel.Name)
-				mychannel = mychannel + " " + channel.Options.Key
-			}
-			err := b.JoinChannel(mychannel)
+			err := b.JoinChannel(channel)
 			if err != nil {
 				return err
 			}

bridge/config/config.go

@@ -13,6 +13,8 @@ const (
 	EVENT_JOIN_LEAVE      = "join_leave"
 	EVENT_FAILURE         = "failure"
 	EVENT_REJOIN_CHANNELS = "rejoin_channels"
+	EVENT_USER_ACTION     = "user_action"
+	EVENT_MSG_DELETE      = "msg_delete"
 )
 
 type Message struct {
@@ -26,6 +28,15 @@ type Message struct {
 	Protocol  string    `json:"protocol"`
 	Gateway   string    `json:"gateway"`
 	Timestamp time.Time `json:"timestamp"`
+	ID        string    `json:"id"`
+	Extra     map[string][]interface{}
+}
+
+type FileInfo struct {
+	Name    string
+	Data    *[]byte
+	Comment string
+	URL     string
 }
 
 type ChannelInfo struct {
@@ -33,7 +44,6 @@ type ChannelInfo struct {
 	Account     string
 	Direction   string
 	ID          string
-	GID         map[string]bool
 	SameChannel map[string]bool
 	Options     ChannelOptions
 }
@@ -42,6 +52,8 @@ type Protocol struct {
 	AuthCode               string // steam
 	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
@@ -49,42 +61,53 @@ type Protocol struct {
 	IgnoreMessages         string // all protocols
 	Jid                    string // xmpp
 	Login                  string // mattermost, matrix
-	Muc                    string // xmpp
-	Name                   string // all protocols
-	Nick                   string // all protocols
-	NickFormatter          string // mattermost, slack
-	NickServNick           string // IRC
-	NickServPassword       string // IRC
-	NicksPerRow            int    // mattermost, slack
-	NoHomeServerSuffix     bool   // matrix
-	NoTLS                  bool   // mattermost
-	Password               string // IRC,mattermost,XMPP,matrix
-	PrefixMessagesWithNick bool   // mattemost, slack
-	Protocol               string //all protocols
-	MessageQueue           int    // IRC, size of message queue for flood control
-	MessageDelay           int    // IRC, time in millisecond to wait between messages
-	MessageLength          int    // IRC, max length of a message allowed
-	MessageFormat          string // telegram
-	RemoteNickFormat       string // all protocols
-	Server                 string // IRC,mattermost,XMPP,discord
-	ShowJoinPart           bool   // all protocols
-	ShowEmbeds             bool   // discord
-	SkipTLSVerify          bool   // IRC, mattermost
-	Team                   string // mattermost
-	Token                  string // gitter, slack, discord, api
-	URL                    string // mattermost, slack // DEPRECATED
-	UseAPI                 bool   // mattermost, slack
-	UseSASL                bool   // IRC
-	UseTLS                 bool   // IRC
-	UseFirstName           bool   // telegram
-	UseInsecureURL         bool   // telegram
-	WebhookBindAddress     string // mattermost, slack
-	WebhookURL             string // mattermost, slack
-	WebhookUse             string // mattermost, slack, discord
+	MediaDownloadSize      int    // all protocols
+	MediaServerDownload    string
+	MediaServerUpload      string
+	MessageDelay           int        // IRC, time in millisecond to wait between messages
+	MessageFormat          string     // telegram
+	MessageLength          int        // IRC, max length of a message allowed
+	MessageQueue           int        // IRC, size of message queue for flood control
+	MessageSplit           bool       // IRC, split long messages with newlines on MessageLength instead of clipping
+	Muc                    string     // xmpp
+	Name                   string     // all protocols
+	Nick                   string     // all protocols
+	NickFormatter          string     // mattermost, slack
+	NickServNick           string     // IRC
+	NickServUsername       string     // IRC
+	NickServPassword       string     // IRC
+	NicksPerRow            int        // mattermost, slack
+	NoHomeServerSuffix     bool       // matrix
+	NoTLS                  bool       // mattermost
+	Password               string     // IRC,mattermost,XMPP,matrix
+	PrefixMessagesWithNick bool       // mattemost, slack
+	Protocol               string     // all protocols
+	RejoinDelay            int        // IRC
+	ReplaceMessages        [][]string // all protocols
+	ReplaceNicks           [][]string // all protocols
+	RemoteNickFormat       string     // all protocols
+	Server                 string     // IRC,mattermost,XMPP,discord
+	ShowJoinPart           bool       // all protocols
+	ShowEmbeds             bool       // discord
+	SkipTLSVerify          bool       // IRC, mattermost
+	StripNick              bool       // all protocols
+	Team                   string     // mattermost
+	Token                  string     // gitter, slack, discord, api
+	URL                    string     // mattermost, slack // DEPRECATED
+	UseAPI                 bool       // mattermost, slack
+	UseSASL                bool       // IRC
+	UseTLS                 bool       // IRC
+	UseFirstName           bool       // telegram
+	UseUserName            bool       // discord
+	UseInsecureURL         bool       // telegram
+	WebhookBindAddress     string     // mattermost, slack
+	WebhookURL             string     // mattermost, slack
+	WebhookUse             string     // mattermost, slack, discord
 }
 
 type ChannelOptions struct {
-	Key string // irc
+	Key        string // irc
+	WebhookURL string // discord
 }
 
 type Bridge struct {
@@ -121,11 +144,19 @@ type Config struct {
 	Discord            map[string]Protocol
 	Telegram           map[string]Protocol
 	Rocketchat         map[string]Protocol
+	Sshchat            map[string]Protocol
 	General            Protocol
 	Gateway            []Gateway
 	SameChannelGateway []SameChannelGateway
 }
 
+type BridgeConfig struct {
+	Config  Protocol
+	General *Protocol
+	Account string
+	Remote  chan Message
+}
+
 func NewConfig(cfgfile string) *Config {
 	var cfg Config
 	if _, err := toml.DecodeFile(cfgfile, &cfg); err != nil {
@@ -153,6 +184,9 @@ func NewConfig(cfgfile string) *Config {
 	if fail {
 		log.Fatalf("Fix your config. Please see changelog for more information")
 	}
+	if cfg.General.MediaDownloadSize == 0 {
+		cfg.General.MediaDownloadSize = 1000000
+	}
 	return &cfg
 }
 
@@ -209,7 +243,7 @@ func Deprecated(cfg Protocol, account string) bool {
 		log.Printf("ERROR: %s BindAddress is deprecated, you need to change it to WebhookBindAddress.", account)
 	} else if cfg.URL != "" {
 		log.Printf("ERROR: %s URL is deprecated, you need to change it to WebhookURL.", account)
-	} else if cfg.UseAPI == true {
+	} else if cfg.UseAPI {
 		log.Printf("ERROR: %s UseAPI is deprecated, it's enabled by default, please remove it from your config file.", account)
 	} else {
 		return false

bridge/discord/discord.go

@@ -1,6 +1,7 @@
 package bdiscord
 
 import (
+	"bytes"
 	"github.com/42wim/matterbridge/bridge/config"
 	log "github.com/Sirupsen/logrus"
 	"github.com/bwmarrin/discordgo"
@@ -10,18 +11,17 @@ import (
 )
 
 type bdiscord struct {
-	c             *discordgo.Session
-	Config        *config.Protocol
-	Remote        chan config.Message
-	Account       string
-	Channels      []*discordgo.Channel
-	Nick          string
-	UseChannelID  bool
-	userMemberMap map[string]*discordgo.Member
-	guildID       string
-	webhookID     string
-	webhookToken  string
+	c              *discordgo.Session
+	Channels       []*discordgo.Channel
+	Nick           string
+	UseChannelID   bool
+	userMemberMap  map[string]*discordgo.Member
+	guildID        string
+	webhookID      string
+	webhookToken   string
+	channelInfoMap map[string]*config.ChannelInfo
 	sync.RWMutex
+	*config.BridgeConfig
 }
 
 var flog *log.Entry
@@ -31,17 +31,13 @@ func init() {
 	flog = log.WithFields(log.Fields{"module": protocol})
 }
 
-func New(cfg config.Protocol, account string, c chan config.Message) *bdiscord {
-	b := &bdiscord{}
-	b.Config = &cfg
-	b.Remote = c
-	b.Account = account
+func New(cfg *config.BridgeConfig) *bdiscord {
+	b := &bdiscord{BridgeConfig: cfg}
 	b.userMemberMap = make(map[string]*discordgo.Member)
+	b.channelInfoMap = make(map[string]*config.ChannelInfo)
 	if b.Config.WebhookURL != "" {
 		flog.Debug("Configuring Discord Incoming Webhook")
-		webhookURLSplit := strings.Split(b.Config.WebhookURL, "/")
-		b.webhookToken = webhookURLSplit[len(webhookURLSplit)-1]
-		b.webhookID = webhookURLSplit[len(webhookURLSplit)-2]
+		b.webhookID, b.webhookToken = b.splitURL(b.Config.WebhookURL)
 	}
 	return b
 }
@@ -66,12 +62,13 @@ func (b *bdiscord) Connect() error {
 	b.c.AddHandler(b.messageCreate)
 	b.c.AddHandler(b.memberUpdate)
 	b.c.AddHandler(b.messageUpdate)
+	b.c.AddHandler(b.messageDelete)
 	err = b.c.Open()
 	if err != nil {
 		flog.Debugf("%#v", err)
 		return err
 	}
-	guilds, err := b.c.UserGuilds()
+	guilds, err := b.c.UserGuilds(100, "", "")
 	if err != nil {
 		flog.Debugf("%#v", err)
 		return err
@@ -99,37 +96,93 @@ func (b *bdiscord) Disconnect() error {
 	return nil
 }
 
-func (b *bdiscord) JoinChannel(channel string) error {
-	idcheck := strings.Split(channel, "ID:")
+func (b *bdiscord) JoinChannel(channel config.ChannelInfo) error {
+	b.channelInfoMap[channel.ID] = &channel
+	idcheck := strings.Split(channel.Name, "ID:")
 	if len(idcheck) > 1 {
 		b.UseChannelID = true
 	}
 	return nil
 }
 
-func (b *bdiscord) Send(msg config.Message) error {
+func (b *bdiscord) Send(msg config.Message) (string, error) {
 	flog.Debugf("Receiving %#v", msg)
 	channelID := b.getChannelID(msg.Channel)
 	if channelID == "" {
 		flog.Errorf("Could not find channelID for %v", msg.Channel)
-		return nil
+		return "", nil
 	}
-	if b.Config.WebhookURL == "" {
+	if msg.Event == config.EVENT_USER_ACTION {
+		msg.Text = "_" + msg.Text + "_"
+	}
+
+	wID := b.webhookID
+	wToken := b.webhookToken
+	if ci, ok := b.channelInfoMap[msg.Channel+b.Account]; ok {
+		if ci.Options.WebhookURL != "" {
+			wID, wToken = b.splitURL(ci.Options.WebhookURL)
+		}
+	}
+
+	if wID == "" {
 		flog.Debugf("Broadcasting using token (API)")
-		b.c.ChannelMessageSend(channelID, msg.Username+msg.Text)
-	} else {
-		flog.Debugf("Broadcasting using Webhook")
-		b.c.WebhookExecute(
-			b.webhookID,
-			b.webhookToken,
-			true,
-			&discordgo.WebhookParams{
-				Content:   msg.Text,
-				Username:  msg.Username,
-				AvatarURL: msg.Avatar,
-			})
+		if msg.Event == config.EVENT_MSG_DELETE {
+			if msg.ID == "" {
+				return "", nil
+			}
+			err := b.c.ChannelMessageDelete(channelID, msg.ID)
+			return "", err
+		}
+		if msg.ID != "" {
+			_, err := b.c.ChannelMessageEdit(channelID, msg.ID, msg.Username+msg.Text)
+			return msg.ID, err
+		}
+
+		if msg.Extra != nil {
+			// check if we have files to upload (from slack, telegram or mattermost)
+			if len(msg.Extra["file"]) > 0 {
+				var err error
+				for _, f := range msg.Extra["file"] {
+					fi := f.(config.FileInfo)
+					files := []*discordgo.File{}
+					files = append(files, &discordgo.File{fi.Name, "", bytes.NewReader(*fi.Data)})
+					_, err = b.c.ChannelMessageSendComplex(channelID, &discordgo.MessageSend{Content: msg.Username + fi.Comment, Files: files})
+					if err != nil {
+						flog.Errorf("file upload failed: %#v", err)
+					}
+				}
+				return "", nil
+			}
+		}
+
+		res, err := b.c.ChannelMessageSend(channelID, msg.Username+msg.Text)
+		if err != nil {
+			return "", err
+		}
+		return res.ID, err
 	}
-	return nil
+	flog.Debugf("Broadcasting using Webhook")
+	err := b.c.WebhookExecute(
+		wID,
+		wToken,
+		true,
+		&discordgo.WebhookParams{
+			Content:   msg.Text,
+			Username:  msg.Username,
+			AvatarURL: msg.Avatar,
+		})
+	return "", err
+}
+
+func (b *bdiscord) messageDelete(s *discordgo.Session, m *discordgo.MessageDelete) {
+	rmsg := config.Message{Account: b.Account, ID: m.ID, Event: config.EVENT_MSG_DELETE, Text: config.EVENT_MSG_DELETE}
+	rmsg.Channel = b.getChannelName(m.ChannelID)
+	if b.UseChannelID {
+		rmsg.Channel = "ID:" + m.ChannelID
+	}
+	flog.Debugf("Sending message from %s to gateway", b.Account)
+	flog.Debugf("Message is %#v", rmsg)
+	b.Remote <- rmsg
 }
 
 func (b *bdiscord) messageUpdate(s *discordgo.Session, m *discordgo.MessageUpdate) {
@@ -150,40 +203,61 @@ func (b *bdiscord) messageCreate(s *discordgo.Session, m *discordgo.MessageCreat
 		return
 	}
 	// if using webhooks, do not relay if it's ours
-	if b.Config.WebhookURL != "" && m.Author.Bot && m.Author.ID == b.webhookID {
+	if b.useWebhook() && m.Author.Bot && b.isWebhookID(m.Author.ID) {
 		return
 	}
+
 	if len(m.Attachments) > 0 {
 		for _, attach := range m.Attachments {
 			m.Content = m.Content + "\n" + attach.URL
 		}
 	}
-	if m.Content == "" {
-		return
-	}
-	flog.Debugf("Receiving message %#v", m.Message)
-	channelName := b.getChannelName(m.ChannelID)
-	if b.UseChannelID {
-		channelName = "ID:" + m.ChannelID
-	}
-	username := b.getNick(m.Author)
-	if len(m.MentionRoles) > 0 {
-		m.Message.Content = b.replaceRoleMentions(m.Message.Content)
-	}
-	m.Message.Content = b.stripCustomoji(m.Message.Content)
-	m.Message.Content = b.replaceChannelMentions(m.Message.Content)
 
-	text := m.ContentWithMentionsReplaced()
+	var text string
+	if m.Content != "" {
+		flog.Debugf("Receiving message %#v", m.Message)
+		if len(m.MentionRoles) > 0 {
+			m.Message.Content = b.replaceRoleMentions(m.Message.Content)
+		}
+		m.Message.Content = b.stripCustomoji(m.Message.Content)
+		m.Message.Content = b.replaceChannelMentions(m.Message.Content)
+		text = m.ContentWithMentionsReplaced()
+	}
+
+	rmsg := config.Message{Account: b.Account, Avatar: "https://cdn.discordapp.com/avatars/" + m.Author.ID + "/" + m.Author.Avatar + ".jpg",
+		UserID: m.Author.ID, ID: m.ID}
+
+	rmsg.Channel = b.getChannelName(m.ChannelID)
+	if b.UseChannelID {
+		rmsg.Channel = "ID:" + m.ChannelID
+	}
+
+	if !b.Config.UseUserName {
+		rmsg.Username = b.getNick(m.Author)
+	} else {
+		rmsg.Username = m.Author.Username
+	}
+
 	if b.Config.ShowEmbeds && m.Message.Embeds != nil {
 		for _, embed := range m.Message.Embeds {
 			text = text + "embed: " + embed.Title + " - " + embed.Description + " - " + embed.URL + "\n"
 		}
 	}
 
+	// no empty messages
+	if text == "" {
+		return
+	}
+
+	text, ok := b.replaceAction(text)
+	if ok {
+		rmsg.Event = config.EVENT_USER_ACTION
+	}
+
+	rmsg.Text = text
 	flog.Debugf("Sending message from %s on %s to gateway", m.Author.Username, b.Account)
-	b.Remote <- config.Message{Username: username, Text: text, Channel: channelName,
-		Account: b.Account, Avatar: "https://cdn.discordapp.com/avatars/" + m.Author.ID + "/" + m.Author.Avatar + ".jpg",
-		UserID: m.Author.ID}
+	flog.Debugf("Message is %#v", rmsg)
+	b.Remote <- rmsg
 }
 
 func (b *bdiscord) memberUpdate(s *discordgo.Session, m *discordgo.GuildMemberUpdate) {
@@ -275,8 +349,53 @@ func (b *bdiscord) replaceChannelMentions(text string) string {
 	return text
 }
 
+func (b *bdiscord) replaceAction(text string) (string, bool) {
+	if strings.HasPrefix(text, "_") && strings.HasSuffix(text, "_") {
+		return strings.Replace(text, "_", "", -1), true
+	}
+	return text, false
+}
+
 func (b *bdiscord) stripCustomoji(text string) string {
 	// <:doge:302803592035958784>
 	re := regexp.MustCompile("<(:.*?:)[0-9]+>")
 	return re.ReplaceAllString(text, `$1`)
 }
+
+// splitURL splits a webhookURL and returns the id and token
+func (b *bdiscord) splitURL(url string) (string, string) {
+	webhookURLSplit := strings.Split(url, "/")
+	return webhookURLSplit[len(webhookURLSplit)-2], webhookURLSplit[len(webhookURLSplit)-1]
+}
+
+// useWebhook returns true if we have a webhook defined somewhere
+func (b *bdiscord) useWebhook() bool {
+	if b.Config.WebhookURL != "" {
+		return true
+	}
+	for _, channel := range b.channelInfoMap {
+		if channel.Options.WebhookURL != "" {
+			return true
+		}
+	}
+	return false
+}
+
+// isWebhookID returns true if the specified id is used in a defined webhook
+func (b *bdiscord) isWebhookID(id string) bool {
+	if b.Config.WebhookURL != "" {
+		wID, _ := b.splitURL(b.Config.WebhookURL)
+		if wID == id {
+			return true
+		}
+	}
+	for _, channel := range b.channelInfoMap {
+		if channel.Options.WebhookURL != "" {
+			wID, _ := b.splitURL(channel.Options.WebhookURL)
+			if wID == id {
+				return true
+			}
+		}
+	}
+	return false
+}

bridge/gitter/gitter.go

@@ -2,19 +2,18 @@ package bgitter
 
 import (
 	"fmt"
+	"github.com/42wim/go-gitter"
 	"github.com/42wim/matterbridge/bridge/config"
 	log "github.com/Sirupsen/logrus"
-	"github.com/sromku/go-gitter"
 	"strings"
 )
 
 type Bgitter struct {
-	c       *gitter.Gitter
-	Config  *config.Protocol
-	Remote  chan config.Message
-	Account string
-	Users   []gitter.User
-	Rooms   []gitter.Room
+	c     *gitter.Gitter
+	User  *gitter.User
+	Users []gitter.User
+	Rooms []gitter.Room
+	*config.BridgeConfig
 }
 
 var flog *log.Entry
@@ -24,19 +23,15 @@ func init() {
 	flog = log.WithFields(log.Fields{"module": protocol})
 }
 
-func New(cfg config.Protocol, account string, c chan config.Message) *Bgitter {
-	b := &Bgitter{}
-	b.Config = &cfg
-	b.Remote = c
-	b.Account = account
-	return b
+func New(cfg *config.BridgeConfig) *Bgitter {
+	return &Bgitter{BridgeConfig: cfg}
 }
 
 func (b *Bgitter) Connect() error {
 	var err error
 	flog.Info("Connecting")
 	b.c = gitter.New(b.Config.Token)
-	_, err = b.c.GetUser()
+	b.User, err = b.c.GetUser()
 	if err != nil {
 		flog.Debugf("%#v", err)
 		return err
@@ -51,10 +46,10 @@ func (b *Bgitter) Disconnect() error {
 
 }
 
-func (b *Bgitter) JoinChannel(channel string) error {
-	roomID, err := b.c.GetRoomId(channel)
+func (b *Bgitter) JoinChannel(channel config.ChannelInfo) error {
+	roomID, err := b.c.GetRoomId(channel.Name)
 	if err != nil {
-		return fmt.Errorf("Could not find roomID for %v. Please create the room on gitter.im", channel)
+		return fmt.Errorf("Could not find roomID for %v. Please create the room on gitter.im", channel.Name)
 	}
 	room, err := b.c.GetRoom(roomID)
 	if err != nil {
@@ -78,29 +73,74 @@ func (b *Bgitter) JoinChannel(channel string) error {
 		for event := range stream.Event {
 			switch ev := event.Data.(type) {
 			case *gitter.MessageReceived:
-				// check for ZWSP to see if it's not an echo
-				if !strings.HasSuffix(ev.Message.Text, "​") {
+				if ev.Message.From.ID != b.User.ID {
 					flog.Debugf("Sending message from %s on %s to gateway", ev.Message.From.Username, b.Account)
-					b.Remote <- config.Message{Username: ev.Message.From.Username, Text: ev.Message.Text, Channel: room,
-						Account: b.Account, Avatar: b.getAvatar(ev.Message.From.Username), UserID: ev.Message.From.ID}
+					rmsg := config.Message{Username: ev.Message.From.Username, Text: ev.Message.Text, Channel: room,
+						Account: b.Account, Avatar: b.getAvatar(ev.Message.From.Username), UserID: ev.Message.From.ID,
+						ID: ev.Message.ID}
+					if strings.HasPrefix(ev.Message.Text, "@"+ev.Message.From.Username) {
+						rmsg.Event = config.EVENT_USER_ACTION
+						rmsg.Text = strings.Replace(rmsg.Text, "@"+ev.Message.From.Username+" ", "", -1)
+					}
+					flog.Debugf("Message is %#v", rmsg)
+					b.Remote <- rmsg
 				}
 			case *gitter.GitterConnectionClosed:
 				flog.Errorf("connection with gitter closed for room %s", room)
 			}
 		}
-	}(stream, room.Name)
+	}(stream, room.URI)
 	return nil
 }
 
-func (b *Bgitter) Send(msg config.Message) error {
+func (b *Bgitter) Send(msg config.Message) (string, error) {
 	flog.Debugf("Receiving %#v", msg)
 	roomID := b.getRoomID(msg.Channel)
 	if roomID == "" {
 		flog.Errorf("Could not find roomID for %v", msg.Channel)
-		return nil
+		return "", nil
 	}
-	// add ZWSP because gitter echoes our own messages
-	return b.c.SendMessage(roomID, msg.Username+msg.Text+" ​")
+	if msg.Event == config.EVENT_MSG_DELETE {
+		if msg.ID == "" {
+			return "", nil
+		}
+		// gitter has no delete message api
+		_, err := b.c.UpdateMessage(roomID, msg.ID, "")
+		if err != nil {
+			return "", err
+		}
+		return "", nil
+	}
+	if msg.ID != "" {
+		flog.Debugf("updating message with id %s", msg.ID)
+		_, err := b.c.UpdateMessage(roomID, msg.ID, msg.Username+msg.Text)
+		if err != nil {
+			return "", err
+		}
+		return "", nil
+	}
+
+	if msg.Extra != nil {
+		if len(msg.Extra["file"]) > 0 {
+			for _, f := range msg.Extra["file"] {
+				fi := f.(config.FileInfo)
+				if fi.URL != "" {
+					msg.Text = fi.URL
+				}
+				_, err := b.c.SendMessage(roomID, msg.Username+msg.Text)
+				if err != nil {
+					return "", err
+				}
+			}
+			return "", nil
+		}
+	}
+
+	resp, err := b.c.SendMessage(roomID, msg.Username+msg.Text)
+	if err != nil {
+		return "", err
+	}
+	return resp.ID, nil
 }
 
 func (b *Bgitter) getRoomID(channel string) string {

bridge/helper/helper.go

@@ -0,0 +1,40 @@
+package helper
+
+import (
+	"bytes"
+	"io"
+	"net/http"
+	"time"
+)
+
+func DownloadFile(url string) (*[]byte, error) {
+	var buf bytes.Buffer
+	client := &http.Client{
+		Timeout: time.Second * 5,
+	}
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := client.Do(req)
+	if err != nil {
+		resp.Body.Close()
+		return nil, err
+	}
+	io.Copy(&buf, resp.Body)
+	data := buf.Bytes()
+	resp.Body.Close()
+	return &data, nil
+}
+
+func SplitStringLength(input string, length int) string {
+	a := []rune(input)
+	str := ""
+	for i, r := range a {
+		str = str + string(r)
+		if i > 0 && (i+1)%length == 0 {
+			str += "\n"
+		}
+	}
+	return str
+}

bridge/irc/helper.go

@@ -4,6 +4,7 @@ import (
 	"strings"
 )
 
+/*
 func tableformatter(nicks []string, nicksPerRow int, continued bool) string {
 	result := "|IRC users"
 	if continued {
@@ -29,6 +30,7 @@ func tableformatter(nicks []string, nicksPerRow int, continued bool) string {
 	}
 	return result
 }
+*/
 
 func plainformatter(nicks []string, nicksPerRow int) string {
 	return strings.Join(nicks, ", ") + " currently on IRC"

bridge/irc/irc.go

@@ -1,17 +1,19 @@
 package birc
 
 import (
+	"bytes"
 	"crypto/tls"
 	"fmt"
 	"github.com/42wim/matterbridge/bridge/config"
+	"github.com/42wim/matterbridge/bridge/helper"
 	log "github.com/Sirupsen/logrus"
+	"github.com/lrstanley/girc"
 	"github.com/paulrosania/go-charset/charset"
 	_ "github.com/paulrosania/go-charset/data"
 	"github.com/saintfish/chardet"
-	ircm "github.com/sorcix/irc"
-	"github.com/thoj/go-ircevent"
 	"io"
 	"io/ioutil"
+	"net"
 	"regexp"
 	"sort"
 	"strconv"
@@ -20,15 +22,14 @@ import (
 )
 
 type Birc struct {
-	i               *irc.Connection
+	i               *girc.Client
 	Nick            string
 	names           map[string][]string
-	Config          *config.Protocol
-	Remote          chan config.Message
 	connected       chan struct{}
 	Local           chan config.Message // local queue for flood control
-	Account         string
 	FirstConnection bool
+
+	*config.BridgeConfig
 }
 
 var flog *log.Entry
@@ -38,13 +39,11 @@ func init() {
 	flog = log.WithFields(log.Fields{"module": protocol})
 }
 
-func New(cfg config.Protocol, account string, c chan config.Message) *Birc {
+func New(cfg *config.BridgeConfig) *Birc {
 	b := &Birc{}
-	b.Config = &cfg
+	b.BridgeConfig = cfg
 	b.Nick = b.Config.Nick
-	b.Remote = c
 	b.names = make(map[string][]string)
-	b.Account = account
 	b.connected = make(chan struct{})
 	if b.Config.MessageDelay == 0 {
 		b.Config.MessageDelay = 1300
@@ -62,9 +61,9 @@ func New(cfg config.Protocol, account string, c chan config.Message) *Birc {
 func (b *Birc) Command(msg *config.Message) string {
 	switch msg.Text {
 	case "!users":
-		b.i.AddCallback(ircm.RPL_NAMREPLY, b.storeNames)
-		b.i.AddCallback(ircm.RPL_ENDOFNAMES, b.endNames)
-		b.i.SendRaw("NAMES " + msg.Channel)
+		b.i.Handlers.Add(girc.RPL_NAMREPLY, b.storeNames)
+		b.i.Handlers.Add(girc.RPL_ENDOFNAMES, b.endNames)
+		b.i.Cmd.SendRaw("NAMES " + msg.Channel)
 	}
 	return ""
 }
@@ -72,25 +71,60 @@ func (b *Birc) Command(msg *config.Message) string {
 func (b *Birc) Connect() error {
 	b.Local = make(chan config.Message, b.Config.MessageQueue+10)
 	flog.Infof("Connecting %s", b.Config.Server)
-	i := irc.IRC(b.Config.Nick, b.Config.Nick)
-	if log.GetLevel() == log.DebugLevel {
-		i.Debug = true
-	}
-	i.UseTLS = b.Config.UseTLS
-	i.UseSASL = b.Config.UseSASL
-	i.SASLLogin = b.Config.NickServNick
-	i.SASLPassword = b.Config.NickServPassword
-	i.TLSConfig = &tls.Config{InsecureSkipVerify: b.Config.SkipTLSVerify}
-	i.KeepAlive = time.Minute
-	i.PingFreq = time.Minute
-	if b.Config.Password != "" {
-		i.Password = b.Config.Password
-	}
-	i.AddCallback(ircm.RPL_WELCOME, b.handleNewConnection)
-	err := i.Connect(b.Config.Server)
+	server, portstr, err := net.SplitHostPort(b.Config.Server)
 	if err != nil {
 		return err
 	}
+	port, err := strconv.Atoi(portstr)
+	if err != nil {
+		return err
+	}
+	// fix strict user handling of girc
+	user := b.Config.Nick
+	for !girc.IsValidUser(user) {
+		if len(user) == 1 {
+			user = "matterbridge"
+			break
+		}
+		user = user[1:]
+	}
+
+	i := girc.New(girc.Config{
+		Server:     server,
+		ServerPass: b.Config.Password,
+		Port:       port,
+		Nick:       b.Config.Nick,
+		User:       user,
+		Name:       b.Config.Nick,
+		SSL:        b.Config.UseTLS,
+		TLSConfig:  &tls.Config{InsecureSkipVerify: b.Config.SkipTLSVerify, ServerName: server},
+		PingDelay:  time.Minute,
+	})
+
+	if b.Config.UseSASL {
+		i.Config.SASL = &girc.SASLPlain{b.Config.NickServNick, b.Config.NickServPassword}
+	}
+
+	i.Handlers.Add(girc.RPL_WELCOME, b.handleNewConnection)
+	i.Handlers.Add(girc.RPL_ENDOFMOTD, b.handleOtherAuth)
+	i.Handlers.Add("*", b.handleOther)
+	go func() {
+		for {
+			if err := i.Connect(); err != nil {
+				flog.Errorf("error: %s", err)
+				flog.Info("reconnecting in 30 seconds...")
+				time.Sleep(30 * time.Second)
+				i.Handlers.Clear(girc.RPL_WELCOME)
+				i.Handlers.Add(girc.RPL_WELCOME, func(client *girc.Client, event girc.Event) {
+					b.Remote <- config.Message{Username: "system", Text: "rejoin", Channel: "", Account: b.Account, Event: config.EVENT_REJOIN_CHANNELS}
+					// set our correct nick on reconnect if necessary
+					b.Nick = event.Source.Name
+				})
+			} else {
+				return
+			}
+		}
+	}()
 	b.i = i
 	select {
 	case <-b.connected:
@@ -98,15 +132,8 @@ func (b *Birc) Connect() error {
 	case <-time.After(time.Second * 30):
 		return fmt.Errorf("connection timed out")
 	}
-	i.Debug = false
-	// clear on reconnects
-	i.ClearCallback(ircm.RPL_WELCOME)
-	i.AddCallback(ircm.RPL_WELCOME, func(event *irc.Event) {
-		b.Remote <- config.Message{Username: "system", Text: "rejoin", Channel: "", Account: b.Account, Event: config.EVENT_REJOIN_CHANNELS}
-		// set our correct nick on reconnect if necessary
-		b.Nick = event.Nick
-	})
-	go i.Loop()
+	//i.Debug = false
+	i.Handlers.Clear("*")
 	go b.doSend()
 	return nil
 }
@@ -117,46 +144,87 @@ func (b *Birc) Disconnect() error {
 	return nil
 }
 
-func (b *Birc) JoinChannel(channel string) error {
-	b.i.Join(channel)
+func (b *Birc) JoinChannel(channel config.ChannelInfo) error {
+	if channel.Options.Key != "" {
+		flog.Debugf("using key %s for channel %s", channel.Options.Key, channel.Name)
+		b.i.Cmd.JoinKey(channel.Name, channel.Options.Key)
+	} else {
+		b.i.Cmd.Join(channel.Name)
+	}
 	return nil
 }
 
-func (b *Birc) Send(msg config.Message) error {
-	flog.Debugf("Receiving %#v", msg)
-	if msg.Account == b.Account {
-		return nil
+func (b *Birc) Send(msg config.Message) (string, error) {
+	// ignore delete messages
+	if msg.Event == config.EVENT_MSG_DELETE {
+		return "", nil
 	}
+	flog.Debugf("Receiving %#v", msg)
 	if strings.HasPrefix(msg.Text, "!") {
 		b.Command(&msg)
 	}
+
+	if b.Config.Charset != "" {
+		buf := new(bytes.Buffer)
+		w, err := charset.NewWriter(b.Config.Charset, buf)
+		if err != nil {
+			flog.Errorf("charset from utf-8 conversion failed: %s", err)
+			return "", err
+		}
+		fmt.Fprintf(w, msg.Text)
+		w.Close()
+		msg.Text = buf.String()
+	}
+
+	if msg.Extra != nil {
+		if len(msg.Extra["file"]) > 0 {
+			for _, f := range msg.Extra["file"] {
+				fi := f.(config.FileInfo)
+				if fi.URL != "" {
+					msg.Text = fi.URL
+				}
+				b.Local <- config.Message{Text: msg.Text, Username: msg.Username, Channel: msg.Channel, Event: msg.Event}
+			}
+			return "", nil
+		}
+	}
+
+	// split long messages on messageLength, to avoid clipped messages #281
+	if b.Config.MessageSplit {
+		msg.Text = helper.SplitStringLength(msg.Text, b.Config.MessageLength)
+	}
 	for _, text := range strings.Split(msg.Text, "\n") {
+		input := []rune(text)
 		if len(text) > b.Config.MessageLength {
-			text = text[:b.Config.MessageLength] + " <message clipped>"
+			text = string(input[:b.Config.MessageLength]) + " <message clipped>"
 		}
 		if len(b.Local) < b.Config.MessageQueue {
 			if len(b.Local) == b.Config.MessageQueue-1 {
 				text = text + " <message clipped>"
 			}
-			b.Local <- config.Message{Text: text, Username: msg.Username, Channel: msg.Channel}
+			b.Local <- config.Message{Text: text, Username: msg.Username, Channel: msg.Channel, Event: msg.Event}
 		} else {
 			flog.Debugf("flooding, dropping message (queue at %d)", len(b.Local))
 		}
 	}
-	return nil
+	return "", nil
 }
 
 func (b *Birc) doSend() {
 	rate := time.Millisecond * time.Duration(b.Config.MessageDelay)
-	throttle := time.Tick(rate)
+	throttle := time.NewTicker(rate)
 	for msg := range b.Local {
-		<-throttle
-		b.i.Privmsg(msg.Channel, msg.Username+msg.Text)
+		<-throttle.C
+		if msg.Event == config.EVENT_USER_ACTION {
+			b.i.Cmd.Action(msg.Channel, msg.Username+msg.Text)
+		} else {
+			b.i.Cmd.Message(msg.Channel, msg.Username+msg.Text)
+		}
 	}
 }
 
-func (b *Birc) endNames(event *irc.Event) {
-	channel := event.Arguments[1]
+func (b *Birc) endNames(client *girc.Client, event girc.Event) {
+	channel := event.Params[1]
 	sort.Strings(b.names[channel])
 	maxNamesPerPost := (300 / b.nicksPerRow()) * b.nicksPerRow()
 	continued := false
@@ -169,108 +237,122 @@ func (b *Birc) endNames(event *irc.Event) {
 	b.Remote <- config.Message{Username: b.Nick, Text: b.formatnicks(b.names[channel], continued),
 		Channel: channel, Account: b.Account}
 	b.names[channel] = nil
-	b.i.ClearCallback(ircm.RPL_NAMREPLY)
-	b.i.ClearCallback(ircm.RPL_ENDOFNAMES)
+	b.i.Handlers.Clear(girc.RPL_NAMREPLY)
+	b.i.Handlers.Clear(girc.RPL_ENDOFNAMES)
 }
 
-func (b *Birc) handleNewConnection(event *irc.Event) {
+func (b *Birc) handleNewConnection(client *girc.Client, event girc.Event) {
 	flog.Debug("Registering callbacks")
 	i := b.i
-	b.Nick = event.Arguments[0]
-	i.AddCallback("PRIVMSG", b.handlePrivMsg)
-	i.AddCallback("CTCP_ACTION", b.handlePrivMsg)
-	i.AddCallback(ircm.RPL_TOPICWHOTIME, b.handleTopicWhoTime)
-	i.AddCallback(ircm.NOTICE, b.handleNotice)
-	//i.AddCallback(ircm.RPL_MYINFO, func(e *irc.Event) { flog.Infof("%s: %s", e.Code, strings.Join(e.Arguments[1:], " ")) })
-	i.AddCallback("PING", func(e *irc.Event) {
-		i.SendRaw("PONG :" + e.Message())
-		flog.Debugf("PING/PONG")
-	})
-	i.AddCallback("JOIN", b.handleJoinPart)
-	i.AddCallback("PART", b.handleJoinPart)
-	i.AddCallback("QUIT", b.handleJoinPart)
-	i.AddCallback("KICK", b.handleJoinPart)
-	i.AddCallback("*", b.handleOther)
+	b.Nick = event.Params[0]
+
+	i.Handlers.Add(girc.RPL_ENDOFMOTD, b.handleOtherAuth)
+	i.Handlers.Add("PRIVMSG", b.handlePrivMsg)
+	i.Handlers.Add("CTCP_ACTION", b.handlePrivMsg)
+	i.Handlers.Add(girc.RPL_TOPICWHOTIME, b.handleTopicWhoTime)
+	i.Handlers.Add(girc.NOTICE, b.handleNotice)
+	i.Handlers.Add("JOIN", b.handleJoinPart)
+	i.Handlers.Add("PART", b.handleJoinPart)
+	i.Handlers.Add("QUIT", b.handleJoinPart)
+	i.Handlers.Add("KICK", b.handleJoinPart)
 	// we are now fully connected
 	b.connected <- struct{}{}
 }
 
-func (b *Birc) handleJoinPart(event *irc.Event) {
-	channel := event.Arguments[0]
-	if event.Code == "KICK" {
-		flog.Infof("Got kicked from %s by %s", channel, event.Nick)
+func (b *Birc) handleJoinPart(client *girc.Client, event girc.Event) {
+	if len(event.Params) == 0 {
+		flog.Debugf("handleJoinPart: empty Params? %#v", event)
+		return
+	}
+	channel := event.Params[0]
+	if event.Command == "KICK" {
+		flog.Infof("Got kicked from %s by %s", channel, event.Source.Name)
+		time.Sleep(time.Duration(b.Config.RejoinDelay) * time.Second)
 		b.Remote <- config.Message{Username: "system", Text: "rejoin", Channel: channel, Account: b.Account, Event: config.EVENT_REJOIN_CHANNELS}
 		return
 	}
-	if event.Code == "QUIT" {
-		if event.Nick == b.Nick && strings.Contains(event.Raw, "Ping timeout") {
+	if event.Command == "QUIT" {
+		if event.Source.Name == b.Nick && strings.Contains(event.Trailing, "Ping timeout") {
 			flog.Infof("%s reconnecting ..", b.Account)
 			b.Remote <- config.Message{Username: "system", Text: "reconnect", Channel: channel, Account: b.Account, Event: config.EVENT_FAILURE}
 			return
 		}
 	}
-	if event.Nick != b.Nick {
+	if event.Source.Name != b.Nick {
 		flog.Debugf("Sending JOIN_LEAVE event from %s to gateway", b.Account)
-		b.Remote <- config.Message{Username: "system", Text: event.Nick + " " + strings.ToLower(event.Code) + "s", Channel: channel, Account: b.Account, Event: config.EVENT_JOIN_LEAVE}
+		b.Remote <- config.Message{Username: "system", Text: event.Source.Name + " " + strings.ToLower(event.Command) + "s", Channel: channel, Account: b.Account, Event: config.EVENT_JOIN_LEAVE}
 		return
 	}
 	flog.Debugf("handle %#v", event)
 }
 
-func (b *Birc) handleNotice(event *irc.Event) {
-	if strings.Contains(event.Message(), "This nickname is registered") && event.Nick == b.Config.NickServNick {
-		b.i.Privmsg(b.Config.NickServNick, "IDENTIFY "+b.Config.NickServPassword)
+func (b *Birc) handleNotice(client *girc.Client, event girc.Event) {
+	if strings.Contains(event.String(), "This nickname is registered") && event.Source.Name == b.Config.NickServNick {
+		b.i.Cmd.Message(b.Config.NickServNick, "IDENTIFY "+b.Config.NickServPassword)
 	} else {
-		b.handlePrivMsg(event)
+		b.handlePrivMsg(client, event)
 	}
 }
 
-func (b *Birc) handleOther(event *irc.Event) {
-	switch event.Code {
+func (b *Birc) handleOther(client *girc.Client, event girc.Event) {
+	switch event.Command {
 	case "372", "375", "376", "250", "251", "252", "253", "254", "255", "265", "266", "002", "003", "004", "005":
 		return
 	}
-	flog.Debugf("%#v", event.Raw)
+	flog.Debugf("%#v", event.String())
 }
 
-func (b *Birc) handlePrivMsg(event *irc.Event) {
+func (b *Birc) handleOtherAuth(client *girc.Client, event girc.Event) {
+	if strings.EqualFold(b.Config.NickServNick, "Q@CServe.quakenet.org") {
+		flog.Debugf("Authenticating %s against %s", b.Config.NickServUsername, b.Config.NickServNick)
+		b.i.Cmd.Message(b.Config.NickServNick, "AUTH "+b.Config.NickServUsername+" "+b.Config.NickServPassword)
+	}
+}
+
+func (b *Birc) handlePrivMsg(client *girc.Client, event girc.Event) {
 	b.Nick = b.i.GetNick()
 	// freenode doesn't send 001 as first reply
-	if event.Code == "NOTICE" {
+	if event.Command == "NOTICE" {
 		return
 	}
 	// don't forward queries to the bot
-	if event.Arguments[0] == b.Nick {
+	if event.Params[0] == b.Nick {
 		return
 	}
 	// don't forward message from ourself
-	if event.Nick == b.Nick {
+	if event.Source.Name == b.Nick {
 		return
 	}
-	flog.Debugf("handlePrivMsg() %s %s %#v", event.Nick, event.Message(), event)
+	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.Code == "CTCP_ACTION" {
-		msg = event.Nick + " "
+	if event.IsAction() {
+		rmsg.Event = config.EVENT_USER_ACTION
 	}
-	msg += event.Message()
+	msg += event.StripAction()
 	// strip IRC colors
-	re := regexp.MustCompile(`[[:cntrl:]](\d+,|)\d+`)
+	re := regexp.MustCompile(`[[:cntrl:]](?:\d{1,2}(?:,\d{1,2})?)?`)
 	msg = re.ReplaceAllString(msg, "")
 
-	// detect what were sending so that we convert it to utf-8
-	detector := chardet.NewTextDetector()
-	result, err := detector.DetectBest([]byte(msg))
-	if err != nil {
-		flog.Infof("detection failed for msg: %#v", msg)
-		return
-	}
-	flog.Debugf("detected %s confidence %#v", result.Charset, result.Confidence)
 	var r io.Reader
-	r, err = charset.NewReader(result.Charset, strings.NewReader(msg))
-	// if we're not sure, just pick ISO-8859-1
-	if result.Confidence < 80 {
-		r, err = charset.NewReader("ISO-8859-1", strings.NewReader(msg))
+	var err error
+	mycharset := b.Config.Charset
+	if mycharset == "" {
+		// detect what were sending so that we convert it to utf-8
+		detector := chardet.NewTextDetector()
+		result, err := detector.DetectBest([]byte(msg))
+		if err != nil {
+			flog.Infof("detection failed for msg: %#v", msg)
+			return
+		}
+		flog.Debugf("detected %s confidence %#v", result.Charset, result.Confidence)
+		mycharset = result.Charset
+		// if we're not sure, just pick ISO-8859-1
+		if result.Confidence < 80 {
+			mycharset = "ISO-8859-1"
+		}
 	}
+	r, err = charset.NewReader(mycharset, strings.NewReader(msg))
 	if err != nil {
 		flog.Errorf("charset to utf-8 conversion failed: %s", err)
 		return
@@ -278,48 +360,35 @@ func (b *Birc) handlePrivMsg(event *irc.Event) {
 	output, _ := ioutil.ReadAll(r)
 	msg = string(output)
 
-	flog.Debugf("Sending message from %s on %s to gateway", event.Arguments[0], b.Account)
-	b.Remote <- config.Message{Username: event.Nick, Text: msg, Channel: event.Arguments[0], Account: b.Account, UserID: event.User + "@" + event.Host}
+	flog.Debugf("Sending message from %s on %s to gateway", event.Params[0], b.Account)
+	rmsg.Text = msg
+	b.Remote <- rmsg
 }
 
-func (b *Birc) handleTopicWhoTime(event *irc.Event) {
-	parts := strings.Split(event.Arguments[2], "!")
-	t, err := strconv.ParseInt(event.Arguments[3], 10, 64)
+func (b *Birc) handleTopicWhoTime(client *girc.Client, event girc.Event) {
+	parts := strings.Split(event.Params[2], "!")
+	t, err := strconv.ParseInt(event.Params[3], 10, 64)
 	if err != nil {
-		flog.Errorf("Invalid time stamp: %s", event.Arguments[3])
+		flog.Errorf("Invalid time stamp: %s", event.Params[3])
 	}
 	user := parts[0]
 	if len(parts) > 1 {
 		user += " [" + parts[1] + "]"
 	}
-	flog.Debugf("%s: Topic set by %s [%s]", event.Code, user, time.Unix(t, 0))
+	flog.Debugf("%s: Topic set by %s [%s]", event.Command, user, time.Unix(t, 0))
 }
 
 func (b *Birc) nicksPerRow() int {
 	return 4
-	/*
-		if b.Config.Mattermost.NicksPerRow < 1 {
-			return 4
-		}
-		return b.Config.Mattermost.NicksPerRow
-	*/
 }
 
-func (b *Birc) storeNames(event *irc.Event) {
-	channel := event.Arguments[2]
+func (b *Birc) storeNames(client *girc.Client, event girc.Event) {
+	channel := event.Params[2]
 	b.names[channel] = append(
 		b.names[channel],
-		strings.Split(strings.TrimSpace(event.Message()), " ")...)
+		strings.Split(strings.TrimSpace(event.Trailing), " ")...)
 }
 
 func (b *Birc) formatnicks(nicks []string, continued bool) string {
 	return plainformatter(nicks, b.nicksPerRow())
-	/*
-		switch b.Config.Mattermost.NickFormatter {
-		case "table":
-			return tableformatter(nicks, b.nicksPerRow(), continued)
-		default:
-			return plainformatter(nicks, b.nicksPerRow())
-		}
-	*/
 }

bridge/matrix/matrix.go

@@ -1,22 +1,24 @@
 package bmatrix
 
 import (
+	"bytes"
+	"mime"
 	"regexp"
+	"strings"
 	"sync"
 
 	"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 {
 	mc      *matrix.Client
-	Config  *config.Protocol
-	Remote  chan config.Message
-	Account string
 	UserID  string
 	RoomMap map[string]string
 	sync.RWMutex
+	*config.BridgeConfig
 }
 
 var flog *log.Entry
@@ -26,12 +28,9 @@ func init() {
 	flog = log.WithFields(log.Fields{"module": protocol})
 }
 
-func New(cfg config.Protocol, account string, c chan config.Message) *Bmatrix {
-	b := &Bmatrix{}
+func New(cfg *config.BridgeConfig) *Bmatrix {
+	b := &Bmatrix{BridgeConfig: cfg}
 	b.RoomMap = make(map[string]string)
-	b.Config = &cfg
-	b.Account = account
-	b.Remote = c
 	return b
 }
 
@@ -63,23 +62,83 @@ func (b *Bmatrix) Disconnect() error {
 	return nil
 }
 
-func (b *Bmatrix) JoinChannel(channel string) error {
-	resp, err := b.mc.JoinRoom(channel, "", nil)
+func (b *Bmatrix) JoinChannel(channel config.ChannelInfo) error {
+	resp, err := b.mc.JoinRoom(channel.Name, "", nil)
 	if err != nil {
 		return err
 	}
 	b.Lock()
-	b.RoomMap[resp.RoomID] = channel
+	b.RoomMap[resp.RoomID] = channel.Name
 	b.Unlock()
 	return err
 }
 
-func (b *Bmatrix) Send(msg config.Message) 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 {
+		if msg.ID == "" {
+			return "", nil
+		}
+		resp, err := b.mc.RedactEvent(channel, msg.ID, &matrix.ReqRedact{})
+		if err != nil {
+			return "", err
+		}
+		return resp.EventID, err
+	}
 	flog.Debugf("Sending to channel %s", channel)
-	b.mc.SendText(channel, msg.Username+msg.Text)
-	return nil
+	if msg.Event == config.EVENT_USER_ACTION {
+		resp, err := b.mc.SendMessageEvent(channel, "m.room.message",
+			matrix.TextMessage{"m.emote", msg.Username + msg.Text})
+		if err != nil {
+			return "", err
+		}
+		return resp.EventID, err
+	}
+
+	if msg.Extra != nil {
+		// check if we have files to upload (from slack, telegram or mattermost)
+		if len(msg.Extra["file"]) > 0 {
+			for _, f := range msg.Extra["file"] {
+				fi := f.(config.FileInfo)
+				content := bytes.NewReader(*fi.Data)
+				sp := strings.Split(fi.Name, ".")
+				mtype := mime.TypeByExtension("." + sp[len(sp)-1])
+				if strings.Contains(mtype, "image") ||
+					strings.Contains(mtype, "video") {
+					flog.Debugf("uploading file: %s %s", fi.Name, mtype)
+					res, err := b.mc.UploadToContentRepo(content, mtype, int64(len(*fi.Data)))
+					if err != nil {
+						flog.Errorf("file upload failed: %#v", err)
+						continue
+					}
+					if strings.Contains(mtype, "video") {
+						flog.Debugf("sendVideo %s", res.ContentURI)
+						_, err = b.mc.SendVideo(channel, fi.Name, res.ContentURI)
+						if err != nil {
+							flog.Errorf("sendVideo failed: %#v", err)
+						}
+					}
+					if strings.Contains(mtype, "image") {
+						flog.Debugf("sendImage %s", res.ContentURI)
+						_, err = b.mc.SendImage(channel, fi.Name, res.ContentURI)
+						if err != nil {
+							flog.Errorf("sendImage failed: %#v", err)
+						}
+					}
+					flog.Debugf("result: %#v", res)
+				}
+			}
+			return "", nil
+		}
+	}
+
+	resp, err := b.mc.SendText(channel, msg.Username+msg.Text)
+	if err != nil {
+		return "", err
+	}
+	return resp.EventID, err
 }
 
 func (b *Bmatrix) getRoomID(channel string) string {
@@ -92,27 +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) {
-		if ev.Content["msgtype"].(string) == "m.text" && 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`)
-			}
-			flog.Debugf("Sending message from %s on %s to gateway", ev.Sender, b.Account)
-			b.Remote <- config.Message{Username: username, Text: ev.Content["body"].(string), Channel: channel, Account: b.Account, UserID: ev.Sender}
-		}
-		flog.Debugf("Received: %#v", ev)
-	})
+	syncer.OnEventType("m.room.redaction", b.handleEvent)
+	syncer.OnEventType("m.room.message", b.handleEvent)
 	go func() {
 		for {
 			if err := b.mc.Sync(); err != nil {
@@ -122,3 +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

@@ -1,10 +1,13 @@
 package bmattermost
 
 import (
+	"errors"
+	"fmt"
 	"github.com/42wim/matterbridge/bridge/config"
 	"github.com/42wim/matterbridge/matterclient"
 	"github.com/42wim/matterbridge/matterhook"
 	log "github.com/Sirupsen/logrus"
+	"strings"
 )
 
 type MMhook struct {
@@ -12,9 +15,8 @@ type MMhook struct {
 }
 
 type MMapi struct {
-	mc            *matterclient.MMClient
-	mmMap         map[string]string
-	mmIgnoreNicks []string
+	mc    *matterclient.MMClient
+	mmMap map[string]string
 }
 
 type MMMessage struct {
@@ -22,16 +24,16 @@ type MMMessage struct {
 	Channel  string
 	Username string
 	UserID   string
+	ID       string
+	Event    string
+	Extra    map[string][]interface{}
 }
 
 type Bmattermost struct {
 	MMhook
 	MMapi
-	Config  *config.Protocol
-	Remote  chan config.Message
-	name    string
-	TeamId  string
-	Account string
+	TeamId string
+	*config.BridgeConfig
 }
 
 var flog *log.Entry
@@ -41,11 +43,8 @@ func init() {
 	flog = log.WithFields(log.Fields{"module": protocol})
 }
 
-func New(cfg config.Protocol, account string, c chan config.Message) *Bmattermost {
-	b := &Bmattermost{}
-	b.Config = &cfg
-	b.Remote = c
-	b.Account = account
+func New(cfg *config.BridgeConfig) *Bmattermost {
+	b := &Bmattermost{BridgeConfig: cfg}
 	b.mmMap = make(map[string]string)
 	return b
 }
@@ -55,33 +54,72 @@ func (b *Bmattermost) Command(cmd string) string {
 }
 
 func (b *Bmattermost) Connect() error {
-	if b.Config.WebhookURL != "" && b.Config.WebhookBindAddress != "" {
-		flog.Info("Connecting using webhookurl and webhookbindaddress")
-		b.mh = matterhook.New(b.Config.WebhookURL,
-			matterhook.Config{InsecureSkipVerify: b.Config.SkipTLSVerify,
-				BindAddress: b.Config.WebhookBindAddress})
-	} else if b.Config.WebhookURL != "" {
-		flog.Info("Connecting using webhookurl (for posting) and token")
+	if b.Config.WebhookBindAddress != "" {
+		if b.Config.WebhookURL != "" {
+			flog.Info("Connecting using webhookurl (sending) and webhookbindaddress (receiving)")
+			b.mh = matterhook.New(b.Config.WebhookURL,
+				matterhook.Config{InsecureSkipVerify: b.Config.SkipTLSVerify,
+					BindAddress: b.Config.WebhookBindAddress})
+		} else if b.Config.Token != "" {
+			flog.Info("Connecting using token (sending)")
+			err := b.apiLogin()
+			if err != nil {
+				return err
+			}
+		} else if b.Config.Login != "" {
+			flog.Info("Connecting using login/password (sending)")
+			err := b.apiLogin()
+			if err != nil {
+				return err
+			}
+		} else {
+			flog.Info("Connecting using webhookbindaddress (receiving)")
+			b.mh = matterhook.New(b.Config.WebhookURL,
+				matterhook.Config{InsecureSkipVerify: b.Config.SkipTLSVerify,
+					BindAddress: b.Config.WebhookBindAddress})
+		}
+		go b.handleMatter()
+		return nil
+	}
+	if b.Config.WebhookURL != "" {
+		flog.Info("Connecting using webhookurl (sending)")
 		b.mh = matterhook.New(b.Config.WebhookURL,
 			matterhook.Config{InsecureSkipVerify: b.Config.SkipTLSVerify,
 				DisableServer: true})
-	} else {
-		flog.Info("Connecting using token")
-		b.mc = matterclient.New(b.Config.Login, b.Config.Password,
-			b.Config.Team, b.Config.Server)
-		b.mc.SkipTLSVerify = b.Config.SkipTLSVerify
-		b.mc.NoTLS = b.Config.NoTLS
-		flog.Infof("Connecting %s (team: %s) on %s", b.Config.Login, b.Config.Team, b.Config.Server)
-		err := b.mc.Login()
+		if b.Config.Token != "" {
+			flog.Info("Connecting using token (receiving)")
+			err := b.apiLogin()
+			if err != nil {
+				return err
+			}
+			go b.handleMatter()
+		} else if b.Config.Login != "" {
+			flog.Info("Connecting using login/password (receiving)")
+			err := b.apiLogin()
+			if err != nil {
+				return err
+			}
+			go b.handleMatter()
+		}
+		return nil
+	} else if b.Config.Token != "" {
+		flog.Info("Connecting using token (sending and receiving)")
+		err := b.apiLogin()
 		if err != nil {
 			return err
 		}
-		flog.Info("Connection succeeded")
-		b.TeamId = b.mc.GetTeamId()
-		go b.mc.WsReceiver()
-		go b.mc.StatusLoop()
+		go b.handleMatter()
+	} else if b.Config.Login != "" {
+		flog.Info("Connecting using login/password (sending and receiving)")
+		err := b.apiLogin()
+		if err != nil {
+			return err
+		}
+		go b.handleMatter()
+	}
+	if b.Config.WebhookBindAddress == "" && b.Config.WebhookURL == "" && b.Config.Login == "" && b.Config.Token == "" {
+		return errors.New("No connection method found. See that you have WebhookBindAddress, WebhookURL or Token/Login/Password/Server/Team configured.")
 	}
-	go b.handleMatter()
 	return nil
 }
 
@@ -89,16 +127,23 @@ func (b *Bmattermost) Disconnect() error {
 	return nil
 }
 
-func (b *Bmattermost) JoinChannel(channel string) error {
+func (b *Bmattermost) JoinChannel(channel config.ChannelInfo) error {
 	// we can only join channels using the API
 	if b.Config.WebhookURL == "" && b.Config.WebhookBindAddress == "" {
-		return b.mc.JoinChannel(b.mc.GetChannelId(channel, ""))
+		id := b.mc.GetChannelId(channel.Name, "")
+		if id == "" {
+			return fmt.Errorf("Could not find channel ID for channel %s", channel.Name)
+		}
+		return b.mc.JoinChannel(id)
 	}
 	return nil
 }
 
-func (b *Bmattermost) Send(msg config.Message) error {
+func (b *Bmattermost) Send(msg config.Message) (string, error) {
 	flog.Debugf("Receiving %#v", msg)
+	if msg.Event == config.EVENT_USER_ACTION {
+		msg.Text = "*" + msg.Text + "*"
+	}
 	nick := msg.Username
 	message := msg.Text
 	channel := msg.Channel
@@ -113,29 +158,71 @@ func (b *Bmattermost) Send(msg config.Message) error {
 		matterMessage.UserName = nick
 		matterMessage.Type = ""
 		matterMessage.Text = message
+		matterMessage.Text = message
+		matterMessage.Props = make(map[string]interface{})
+		matterMessage.Props["matterbridge"] = true
 		err := b.mh.Send(matterMessage)
 		if err != nil {
 			flog.Info(err)
-			return err
+			return "", err
 		}
-		return nil
+		return "", nil
 	}
-	b.mc.PostMessage(b.mc.GetChannelId(channel, ""), message)
-	return nil
+	if msg.Event == config.EVENT_MSG_DELETE {
+		if msg.ID == "" {
+			return "", nil
+		}
+		return msg.ID, b.mc.DeleteMessage(msg.ID)
+	}
+	if msg.Extra != nil {
+		if len(msg.Extra["file"]) > 0 {
+			var err error
+			var res, id string
+			for _, f := range msg.Extra["file"] {
+				fi := f.(config.FileInfo)
+				id, err = b.mc.UploadFile(*fi.Data, b.mc.GetChannelId(channel, ""), fi.Name)
+				if err != nil {
+					flog.Debugf("ERROR %#v", err)
+					return "", err
+				}
+				message = fi.Comment
+				if b.Config.PrefixMessagesWithNick {
+					message = nick + fi.Comment
+				}
+				res, err = b.mc.PostMessageWithFiles(b.mc.GetChannelId(channel, ""), message, []string{id})
+			}
+			return res, err
+		}
+	}
+	if msg.ID != "" {
+		return b.mc.EditMessage(msg.ID, message)
+	}
+	return b.mc.PostMessage(b.mc.GetChannelId(channel, ""), message)
 }
 
 func (b *Bmattermost) handleMatter() {
 	mchan := make(chan *MMMessage)
-	if b.Config.WebhookBindAddress != "" && b.Config.WebhookURL != "" {
+	if b.Config.WebhookBindAddress != "" {
 		flog.Debugf("Choosing webhooks based receiving")
 		go b.handleMatterHook(mchan)
 	} else {
-		flog.Debugf("Choosing login (api) based receiving")
+		if b.Config.Token != "" {
+			flog.Debugf("Choosing token based receiving")
+		} else {
+			flog.Debugf("Choosing login/password based receiving")
+		}
 		go b.handleMatterClient(mchan)
 	}
 	for message := range mchan {
+		rmsg := config.Message{Username: message.Username, Channel: message.Channel, Account: b.Account, UserID: message.UserID, ID: message.ID, Event: message.Event, Extra: message.Extra}
+		text, ok := b.replaceAction(message.Text)
+		if ok {
+			rmsg.Event = config.EVENT_USER_ACTION
+		}
+		rmsg.Text = text
 		flog.Debugf("Sending message from %s on %s to gateway", message.Username, b.Account)
-		b.Remote <- config.Message{Text: message.Text, Username: message.Username, Channel: message.Channel, Account: b.Account, UserID: message.UserID}
+		flog.Debugf("Message is %#v", rmsg)
+		b.Remote <- rmsg
 	}
 }
 
@@ -152,21 +239,44 @@ func (b *Bmattermost) handleMatterClient(mchan chan *MMMessage) {
 		if (message.Raw.Event == "post_edited") && b.Config.EditDisable {
 			continue
 		}
+
+		m := &MMMessage{Extra: make(map[string][]interface{})}
+
+		props := message.Post.Props
+		if props != nil {
+			if _, ok := props["matterbridge"].(bool); ok {
+				flog.Debugf("sent by matterbridge, ignoring")
+				continue
+			}
+			if _, ok := props["override_username"].(string); ok {
+				message.Username = props["override_username"].(string)
+			}
+			if _, ok := props["attachments"].([]interface{}); ok {
+				m.Extra["attachments"] = props["attachments"].([]interface{})
+			}
+		}
 		// do not post our own messages back to irc
 		// only listen to message from our team
-		if (message.Raw.Event == "posted" || message.Raw.Event == "post_edited") &&
+		if (message.Raw.Event == "posted" || message.Raw.Event == "post_edited" || message.Raw.Event == "post_deleted") &&
 			b.mc.User.Username != message.Username && message.Raw.Data["team_id"].(string) == b.TeamId {
+			// if the message has reactions don't repost it (for now, until we can correlate reaction with message)
+			if message.Post.HasReactions {
+				continue
+			}
 			flog.Debugf("Receiving from matterclient %#v", message)
-			m := &MMMessage{}
 			m.UserID = message.UserID
 			m.Username = message.Username
 			m.Channel = message.Channel
 			m.Text = message.Text
+			m.ID = message.Post.Id
 			if message.Raw.Event == "post_edited" && !b.Config.EditDisable {
 				m.Text = message.Text + b.Config.EditSuffix
 			}
+			if message.Raw.Event == "post_deleted" {
+				m.Event = config.EVENT_MSG_DELETE
+			}
 			if len(message.Post.FileIds) > 0 {
-				for _, link := range b.mc.GetPublicLinks(message.Post.FileIds) {
+				for _, link := range b.mc.GetFileLinks(message.Post.FileIds) {
 					m.Text = m.Text + "\n" + link
 				}
 			}
@@ -187,3 +297,32 @@ func (b *Bmattermost) handleMatterHook(mchan chan *MMMessage) {
 		mchan <- m
 	}
 }
+
+func (b *Bmattermost) apiLogin() error {
+	password := b.Config.Password
+	if b.Config.Token != "" {
+		password = "MMAUTHTOKEN=" + b.Config.Token
+	}
+
+	b.mc = matterclient.New(b.Config.Login, password,
+		b.Config.Team, b.Config.Server)
+	b.mc.SkipTLSVerify = b.Config.SkipTLSVerify
+	b.mc.NoTLS = b.Config.NoTLS
+	flog.Infof("Connecting %s (team: %s) on %s", b.Config.Login, b.Config.Team, b.Config.Server)
+	err := b.mc.Login()
+	if err != nil {
+		return err
+	}
+	flog.Info("Connection succeeded")
+	b.TeamId = b.mc.GetTeamId()
+	go b.mc.WsReceiver()
+	go b.mc.StatusLoop()
+	return nil
+}
+
+func (b *Bmattermost) replaceAction(text string) (string, bool) {
+	if strings.HasPrefix(text, "*") && strings.HasSuffix(text, "*") {
+		return strings.Replace(text, "*", "", -1), true
+	}
+	return text, false
+}

bridge/rocketchat/rocketchat.go

@@ -14,10 +14,7 @@ type MMhook struct {
 
 type Brocketchat struct {
 	MMhook
-	Config  *config.Protocol
-	Remote  chan config.Message
-	name    string
-	Account string
+	*config.BridgeConfig
 }
 
 var flog *log.Entry
@@ -27,12 +24,8 @@ func init() {
 	flog = log.WithFields(log.Fields{"module": protocol})
 }
 
-func New(cfg config.Protocol, account string, c chan config.Message) *Brocketchat {
-	b := &Brocketchat{}
-	b.Config = &cfg
-	b.Remote = c
-	b.Account = account
-	return b
+func New(cfg *config.BridgeConfig) *Brocketchat {
+	return &Brocketchat{BridgeConfig: cfg}
 }
 
 func (b *Brocketchat) Command(cmd string) string {
@@ -54,11 +47,15 @@ func (b *Brocketchat) Disconnect() error {
 
 }
 
-func (b *Brocketchat) JoinChannel(channel string) error {
+func (b *Brocketchat) JoinChannel(channel config.ChannelInfo) error {
 	return nil
 }
 
-func (b *Brocketchat) Send(msg config.Message) error {
+func (b *Brocketchat) Send(msg config.Message) (string, error) {
+	// ignore delete messages
+	if msg.Event == config.EVENT_MSG_DELETE {
+		return "", nil
+	}
 	flog.Debugf("Receiving %#v", msg)
 	matterMessage := matterhook.OMessage{IconURL: b.Config.IconURL}
 	matterMessage.Channel = msg.Channel
@@ -68,9 +65,9 @@ func (b *Brocketchat) Send(msg config.Message) error {
 	err := b.mh.Send(matterMessage)
 	if err != nil {
 		flog.Info(err)
-		return err
+		return "", err
 	}
-	return nil
+	return "", nil
 }
 
 func (b *Brocketchat) handleRocketHook() {

bridge/slack/slack.go

@@ -1,11 +1,16 @@
 package bslack
 
 import (
+	"bytes"
+	"errors"
 	"fmt"
 	"github.com/42wim/matterbridge/bridge/config"
 	"github.com/42wim/matterbridge/matterhook"
 	log "github.com/Sirupsen/logrus"
 	"github.com/nlopes/slack"
+	"html"
+	"io"
+	"net/http"
 	"regexp"
 	"strings"
 	"time"
@@ -22,14 +27,12 @@ type MMMessage struct {
 type Bslack struct {
 	mh       *matterhook.Client
 	sc       *slack.Client
-	Config   *config.Protocol
 	rtm      *slack.RTM
 	Plus     bool
-	Remote   chan config.Message
 	Users    []slack.User
-	Account  string
 	si       *slack.Info
 	channels []slack.Channel
+	*config.BridgeConfig
 }
 
 var flog *log.Entry
@@ -39,12 +42,8 @@ func init() {
 	flog = log.WithFields(log.Fields{"module": protocol})
 }
 
-func New(cfg config.Protocol, account string, c chan config.Message) *Bslack {
-	b := &Bslack{}
-	b.Config = &cfg
-	b.Remote = c
-	b.Account = account
-	return b
+func New(cfg *config.BridgeConfig) *Bslack {
+	return &Bslack{BridgeConfig: cfg}
 }
 
 func (b *Bslack) Command(cmd string) string {
@@ -52,22 +51,52 @@ func (b *Bslack) Command(cmd string) string {
 }
 
 func (b *Bslack) Connect() error {
-	if b.Config.WebhookURL != "" && b.Config.WebhookBindAddress != "" {
-		flog.Info("Connecting using webhookurl and webhookbindaddress")
+	if b.Config.WebhookBindAddress != "" {
+		if b.Config.WebhookURL != "" {
+			flog.Info("Connecting using webhookurl (sending) and webhookbindaddress (receiving)")
+			b.mh = matterhook.New(b.Config.WebhookURL,
+				matterhook.Config{InsecureSkipVerify: b.Config.SkipTLSVerify,
+					BindAddress: b.Config.WebhookBindAddress})
+		} else if b.Config.Token != "" {
+			flog.Info("Connecting using token (sending)")
+			b.sc = slack.New(b.Config.Token)
+			b.rtm = b.sc.NewRTM()
+			go b.rtm.ManageConnection()
+			flog.Info("Connecting using webhookbindaddress (receiving)")
+			b.mh = matterhook.New(b.Config.WebhookURL,
+				matterhook.Config{InsecureSkipVerify: b.Config.SkipTLSVerify,
+					BindAddress: b.Config.WebhookBindAddress})
+		} else {
+			flog.Info("Connecting using webhookbindaddress (receiving)")
+			b.mh = matterhook.New(b.Config.WebhookURL,
+				matterhook.Config{InsecureSkipVerify: b.Config.SkipTLSVerify,
+					BindAddress: b.Config.WebhookBindAddress})
+		}
+		go b.handleSlack()
+		return nil
+	}
+	if b.Config.WebhookURL != "" {
+		flog.Info("Connecting using webhookurl (sending)")
 		b.mh = matterhook.New(b.Config.WebhookURL,
-			matterhook.Config{BindAddress: b.Config.WebhookBindAddress})
-	} else if b.Config.WebhookURL != "" {
-		flog.Info("Connecting using webhookurl (for posting) and token")
-		b.mh = matterhook.New(b.Config.WebhookURL,
-			matterhook.Config{DisableServer: true})
-	} else {
-		flog.Info("Connecting using token")
+			matterhook.Config{InsecureSkipVerify: b.Config.SkipTLSVerify,
+				DisableServer: true})
+		if b.Config.Token != "" {
+			flog.Info("Connecting using token (receiving)")
+			b.sc = slack.New(b.Config.Token)
+			b.rtm = b.sc.NewRTM()
+			go b.rtm.ManageConnection()
+			go b.handleSlack()
+		}
+	} else if b.Config.Token != "" {
+		flog.Info("Connecting using token (sending and receiving)")
 		b.sc = slack.New(b.Config.Token)
 		b.rtm = b.sc.NewRTM()
 		go b.rtm.ManageConnection()
+		go b.handleSlack()
+	}
+	if b.Config.WebhookBindAddress == "" && b.Config.WebhookURL == "" && b.Config.Token == "" {
+		return errors.New("No connection method found. See that you have WebhookBindAddress, WebhookURL or Token configured.")
 	}
-	flog.Info("Connection succeeded")
-	go b.handleSlack()
 	return nil
 }
 
@@ -76,14 +105,14 @@ func (b *Bslack) Disconnect() error {
 
 }
 
-func (b *Bslack) JoinChannel(channel string) 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
 		}
-		_, err := b.sc.JoinChannel(channel)
+		_, err := b.sc.JoinChannel(channel.Name)
 		if err != nil {
 			if err.Error() != "name_taken" {
 				return err
@@ -93,8 +122,11 @@ func (b *Bslack) JoinChannel(channel string) error {
 	return nil
 }
 
-func (b *Bslack) Send(msg config.Message) error {
+func (b *Bslack) Send(msg config.Message) (string, error) {
 	flog.Debugf("Receiving %#v", msg)
+	if msg.Event == config.EVENT_USER_ACTION {
+		msg.Text = "_" + msg.Text + "_"
+	}
 	nick := msg.Username
 	message := msg.Text
 	channel := msg.Channel
@@ -110,31 +142,70 @@ func (b *Bslack) Send(msg config.Message) error {
 		err := b.mh.Send(matterMessage)
 		if err != nil {
 			flog.Info(err)
-			return err
+			return "", err
 		}
-		return nil
+		return "", nil
 	}
 	schannel, err := b.getChannelByName(channel)
 	if err != nil {
-		return err
+		return "", err
 	}
 	np := slack.NewPostMessageParameters()
-	if b.Config.PrefixMessagesWithNick == true {
+	if b.Config.PrefixMessagesWithNick {
 		np.AsUser = true
 	}
 	np.Username = nick
-	np.IconURL = config.GetIconURL(&msg, b.Config)
+	np.IconURL = config.GetIconURL(&msg, &b.Config)
 	if msg.Avatar != "" {
 		np.IconURL = msg.Avatar
 	}
-	b.sc.PostMessage(schannel.ID, message, np)
+	np.Attachments = append(np.Attachments, slack.Attachment{CallbackID: "matterbridge"})
+	np.Attachments = append(np.Attachments, b.createAttach(msg.Extra)...)
 
-	/*
-	   newmsg := b.rtm.NewOutgoingMessage(message, schannel.ID)
-	   b.rtm.SendMessage(newmsg)
-	*/
+	// replace mentions
+	np.LinkNames = 1
 
-	return nil
+	if msg.Event == config.EVENT_MSG_DELETE {
+		// some protocols echo deletes, but with empty ID
+		if msg.ID == "" {
+			return "", nil
+		}
+		// we get a "slack <ID>", split it
+		ts := strings.Fields(msg.ID)
+		b.sc.DeleteMessage(schannel.ID, ts[1])
+		return "", nil
+	}
+	// if we have no ID it means we're creating a new message, not updating an existing one
+	if msg.ID != "" {
+		ts := strings.Fields(msg.ID)
+		b.sc.UpdateMessage(schannel.ID, ts[1], message)
+		return "", nil
+	}
+
+	if msg.Extra != nil {
+		// check if we have files to upload (from slack, telegram or mattermost)
+		if len(msg.Extra["file"]) > 0 {
+			var err error
+			for _, f := range msg.Extra["file"] {
+				fi := f.(config.FileInfo)
+				_, err = b.sc.UploadFile(slack.FileUploadParameters{
+					Reader:         bytes.NewReader(*fi.Data),
+					Filename:       fi.Name,
+					Channels:       []string{schannel.ID},
+					InitialComment: fi.Comment,
+				})
+				if err != nil {
+					flog.Errorf("uploadfile %#v", err)
+				}
+			}
+		}
+	}
+
+	_, id, err := b.sc.PostMessage(schannel.ID, message, np)
+	if err != nil {
+		return "", err
+	}
+	return "slack " + id, nil
 }
 
 func (b *Bslack) getAvatar(user string) string {
@@ -175,7 +246,7 @@ func (b *Bslack) getChannelByID(ID string) (*slack.Channel, error) {
 
 func (b *Bslack) handleSlack() {
 	mchan := make(chan *MMMessage)
-	if b.Config.WebhookBindAddress != "" && b.Config.WebhookURL != "" {
+	if b.Config.WebhookBindAddress != "" {
 		flog.Debugf("Choosing webhooks based receiving")
 		go b.handleMatterHook(mchan)
 	} else {
@@ -189,47 +260,124 @@ func (b *Bslack) handleSlack() {
 		if b.Config.WebhookURL == "" && b.Config.WebhookBindAddress == "" && message.Username == b.si.User.Name {
 			continue
 		}
-		texts := strings.Split(message.Text, "\n")
-		for _, text := range texts {
-			text = b.replaceURL(text)
-			flog.Debugf("Sending message from %s on %s to gateway", message.Username, b.Account)
-			b.Remote <- config.Message{Text: text, Username: message.Username, Channel: message.Channel, Account: b.Account, Avatar: b.getAvatar(message.Username), UserID: message.UserID}
+		if (message.Text == "" || message.Username == "") && message.Raw.SubType != "message_deleted" {
+			continue
 		}
+		text := message.Text
+		text = b.replaceURL(text)
+		text = html.UnescapeString(text)
+		flog.Debugf("Sending message from %s on %s to gateway", message.Username, b.Account)
+		msg := config.Message{Text: text, Username: message.Username, Channel: message.Channel, Account: b.Account, Avatar: b.getAvatar(message.Username), UserID: message.UserID, ID: "slack " + message.Raw.Timestamp, Extra: make(map[string][]interface{})}
+		if message.Raw.SubType == "me_message" {
+			msg.Event = config.EVENT_USER_ACTION
+		}
+		if message.Raw.SubType == "channel_leave" || message.Raw.SubType == "channel_join" {
+			msg.Username = "system"
+			msg.Event = config.EVENT_JOIN_LEAVE
+		}
+		// edited messages have a submessage, use this timestamp
+		if message.Raw.SubMessage != nil {
+			msg.ID = "slack " + message.Raw.SubMessage.Timestamp
+		}
+		if message.Raw.SubType == "message_deleted" {
+			msg.Text = config.EVENT_MSG_DELETE
+			msg.Event = config.EVENT_MSG_DELETE
+			msg.ID = "slack " + message.Raw.DeletedTimestamp
+		}
+
+		// if we have a file attached, download it (in memory) and put a pointer to it in msg.Extra
+		if message.Raw.File != nil {
+			// limit to 1MB for now
+			if message.Raw.File.Size <= b.General.MediaDownloadSize {
+				comment := ""
+				data, err := b.downloadFile(message.Raw.File.URLPrivateDownload)
+				if err != nil {
+					flog.Errorf("download %s failed %#v", message.Raw.File.URLPrivateDownload, err)
+				} else {
+					results := regexp.MustCompile(`.*?commented: (.*)`).FindAllStringSubmatch(msg.Text, -1)
+					if len(results) > 0 {
+						comment = results[0][1]
+					}
+					msg.Extra["file"] = append(msg.Extra["file"], config.FileInfo{Name: message.Raw.File.Name, Data: data, Comment: comment})
+				}
+			}
+		}
+		flog.Debugf("Message is %#v", msg)
+		b.Remote <- msg
 	}
 }
 
 func (b *Bslack) handleSlackClient(mchan chan *MMMessage) {
-	count := 0
 	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:
-			// ignore first message
-			if count > 0 {
-				flog.Debugf("Receiving from slackclient %#v", ev)
-				if !b.Config.EditDisable && ev.SubMessage != nil {
-					flog.Debugf("SubMessage %#v", ev.SubMessage)
-					ev.User = ev.SubMessage.User
-					ev.Text = ev.SubMessage.Text + b.Config.EditSuffix
-				}
-				// use our own func because rtm.GetChannelInfo doesn't work for private channels
-				channel, err := b.getChannelByID(ev.Channel)
-				if err != nil {
+			if len(ev.Attachments) > 0 {
+				// skip messages we made ourselves
+				if ev.Attachments[0].CallbackID == "matterbridge" {
 					continue
 				}
+			}
+			if !b.Config.EditDisable && ev.SubMessage != nil && ev.SubMessage.ThreadTimestamp != ev.SubMessage.Timestamp {
+				flog.Debugf("SubMessage %#v", ev.SubMessage)
+				ev.User = ev.SubMessage.User
+				ev.Text = ev.SubMessage.Text + b.Config.EditSuffix
+
+				// it seems ev.SubMessage.Edited == nil when slack unfurls
+				// do not forward these messages #266
+				if ev.SubMessage.Edited == nil {
+					continue
+				}
+			}
+			// use our own func because rtm.GetChannelInfo doesn't work for private channels
+			channel, err := b.getChannelByID(ev.Channel)
+			if err != nil {
+				continue
+			}
+			m := &MMMessage{}
+			if ev.BotID == "" && ev.SubType != "message_deleted" {
 				user, err := b.rtm.GetUserInfo(ev.User)
 				if err != nil {
 					continue
 				}
-				m := &MMMessage{}
 				m.UserID = user.ID
 				m.Username = user.Name
-				m.Channel = channel.Name
-				m.Text = ev.Text
-				m.Raw = ev
-				m.Text = b.replaceMention(m.Text)
-				mchan <- m
+				if user.Profile.DisplayName != "" {
+					m.Username = user.Profile.DisplayName
+				}
 			}
-			count++
+			m.Channel = channel.Name
+			m.Text = ev.Text
+			if m.Text == "" {
+				for _, attach := range ev.Attachments {
+					if attach.Text != "" {
+						m.Text = attach.Text
+					} else {
+						m.Text = attach.Fallback
+					}
+				}
+			}
+			m.Raw = ev
+			m.Text = b.replaceMention(m.Text)
+			m.Text = b.replaceVariable(m.Text)
+			m.Text = b.replaceChannel(m.Text)
+			// when using webhookURL we can't check if it's our webhook or not for now
+			if ev.BotID != "" && b.Config.WebhookURL == "" {
+				bot, err := b.rtm.GetBotInfo(ev.BotID)
+				if err != nil {
+					continue
+				}
+				if bot.Name != "" {
+					m.Username = bot.Name
+					if ev.Username != "" {
+						m.Username = ev.Username
+					}
+					m.UserID = bot.ID
+				}
+			}
+			mchan <- m
 		case *slack.OutgoingErrorEvent:
 			flog.Debugf("%#v", ev.Error())
 		case *slack.ChannelJoinedEvent:
@@ -248,6 +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:
 		}
 	}
@@ -261,6 +411,8 @@ func (b *Bslack) handleMatterHook(mchan chan *MMMessage) {
 		m.Username = message.UserName
 		m.Text = message.Text
 		m.Text = b.replaceMention(m.Text)
+		m.Text = b.replaceVariable(m.Text)
+		m.Text = b.replaceChannel(m.Text)
 		m.Channel = message.ChannelName
 		if m.Username == "slackbot" {
 			continue
@@ -272,25 +424,91 @@ func (b *Bslack) handleMatterHook(mchan chan *MMMessage) {
 func (b *Bslack) userName(id string) string {
 	for _, u := range b.Users {
 		if u.ID == id {
+			if u.Profile.DisplayName != "" {
+				return u.Profile.DisplayName
+			}
 			return u.Name
 		}
 	}
 	return ""
 }
 
+// @see https://api.slack.com/docs/message-formatting#linking_to_channels_and_users
 func (b *Bslack) replaceMention(text string) string {
 	results := regexp.MustCompile(`<@([a-zA-z0-9]+)>`).FindAllStringSubmatch(text, -1)
 	for _, r := range results {
 		text = strings.Replace(text, "<@"+r[1]+">", "@"+b.userName(r[1]), -1)
-
 	}
 	return text
 }
 
+// @see https://api.slack.com/docs/message-formatting#linking_to_channels_and_users
+func (b *Bslack) replaceChannel(text string) string {
+	results := regexp.MustCompile(`<#[a-zA-Z0-9]+\|(.+?)>`).FindAllStringSubmatch(text, -1)
+	for _, r := range results {
+		text = strings.Replace(text, r[0], "#"+r[1], -1)
+	}
+	return text
+}
+
+// @see https://api.slack.com/docs/message-formatting#variables
+func (b *Bslack) replaceVariable(text string) string {
+	results := regexp.MustCompile(`<!([a-zA-Z0-9]+)(\|.+?)?>`).FindAllStringSubmatch(text, -1)
+	for _, r := range results {
+		text = strings.Replace(text, r[0], "@"+r[1], -1)
+	}
+	return text
+}
+
+// @see https://api.slack.com/docs/message-formatting#linking_to_urls
 func (b *Bslack) replaceURL(text string) string {
-	results := regexp.MustCompile(`<(.*?)\|.*?>`).FindAllStringSubmatch(text, -1)
+	results := regexp.MustCompile(`<(.*?)(\|.*?)?>`).FindAllStringSubmatch(text, -1)
 	for _, r := range results {
 		text = strings.Replace(text, r[0], r[1], -1)
 	}
 	return text
 }
+
+func (b *Bslack) createAttach(extra map[string][]interface{}) []slack.Attachment {
+	var attachs []slack.Attachment
+	for _, v := range extra["attachments"] {
+		entry := v.(map[string]interface{})
+		s := slack.Attachment{}
+		s.Fallback = entry["fallback"].(string)
+		s.Color = entry["color"].(string)
+		s.Pretext = entry["pretext"].(string)
+		s.AuthorName = entry["author_name"].(string)
+		s.AuthorLink = entry["author_link"].(string)
+		s.AuthorIcon = entry["author_icon"].(string)
+		s.Title = entry["title"].(string)
+		s.TitleLink = entry["title_link"].(string)
+		s.Text = entry["text"].(string)
+		s.ImageURL = entry["image_url"].(string)
+		s.ThumbURL = entry["thumb_url"].(string)
+		s.Footer = entry["footer"].(string)
+		s.FooterIcon = entry["footer_icon"].(string)
+		attachs = append(attachs, s)
+	}
+	return attachs
+}
+
+func (b *Bslack) downloadFile(url string) (*[]byte, error) {
+	var buf bytes.Buffer
+	client := &http.Client{
+		Timeout: time.Second * 5,
+	}
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return nil, err
+	}
+	req.Header.Add("Authorization", "Bearer "+b.Config.Token)
+	resp, err := client.Do(req)
+	if err != nil {
+		resp.Body.Close()
+		return nil, err
+	}
+	io.Copy(&buf, resp.Body)
+	data := buf.Bytes()
+	resp.Body.Close()
+	return &data, nil
+}

bridge/sshchat/sshchat.go

@@ -0,0 +1,132 @@
+package bsshchat
+
+import (
+	"bufio"
+	"github.com/42wim/matterbridge/bridge/config"
+	log "github.com/Sirupsen/logrus"
+	"github.com/shazow/ssh-chat/sshd"
+	"io"
+	"strings"
+)
+
+type Bsshchat struct {
+	r *bufio.Scanner
+	w io.WriteCloser
+	*config.BridgeConfig
+}
+
+var flog *log.Entry
+var protocol = "sshchat"
+
+func init() {
+	flog = log.WithFields(log.Fields{"module": protocol})
+}
+
+func New(cfg *config.BridgeConfig) *Bsshchat {
+	return &Bsshchat{BridgeConfig: cfg}
+}
+
+func (b *Bsshchat) Connect() error {
+	var err error
+	flog.Infof("Connecting %s", b.Config.Server)
+	go func() {
+		err = sshd.ConnectShell(b.Config.Server, b.Config.Nick, func(r io.Reader, w io.WriteCloser) error {
+			b.r = bufio.NewScanner(r)
+			b.w = w
+			b.r.Scan()
+			w.Write([]byte("/theme mono\r\n"))
+			b.handleSshChat()
+			return nil
+		})
+	}()
+	if err != nil {
+		flog.Debugf("%#v", err)
+		return err
+	}
+	flog.Info("Connection succeeded")
+	return nil
+}
+
+func (b *Bsshchat) Disconnect() error {
+	return nil
+}
+
+func (b *Bsshchat) JoinChannel(channel config.ChannelInfo) error {
+	return nil
+}
+
+func (b *Bsshchat) Send(msg config.Message) (string, error) {
+	// ignore delete messages
+	if msg.Event == config.EVENT_MSG_DELETE {
+		return "", nil
+	}
+	flog.Debugf("Receiving %#v", msg)
+	if msg.Extra != nil {
+		if len(msg.Extra["file"]) > 0 {
+			for _, f := range msg.Extra["file"] {
+				fi := f.(config.FileInfo)
+				if fi.URL != "" {
+					msg.Text = fi.URL
+				}
+				b.w.Write([]byte(msg.Username + msg.Text))
+			}
+			return "", nil
+		}
+	}
+	b.w.Write([]byte(msg.Username + msg.Text + "\r\n"))
+	return "", nil
+}
+
+/*
+func (b *Bsshchat) sshchatKeepAlive() chan bool {
+	done := make(chan bool)
+	go func() {
+		ticker := time.NewTicker(90 * time.Second)
+		defer ticker.Stop()
+		for {
+			select {
+			case <-ticker.C:
+				flog.Debugf("PING")
+				err := b.xc.PingC2S("", "")
+				if err != nil {
+					flog.Debugf("PING failed %#v", err)
+				}
+			case <-done:
+				return
+			}
+		}
+	}()
+	return done
+}
+*/
+
+func stripPrompt(s string) string {
+	pos := strings.LastIndex(s, "\033[K")
+	if pos < 0 {
+		return s
+	}
+	return s[pos+3:]
+}
+
+func (b *Bsshchat) handleSshChat() error {
+	/*
+		done := b.sshchatKeepAlive()
+		defer close(done)
+	*/
+	wait := true
+	for {
+		if b.r.Scan() {
+			res := strings.Split(stripPrompt(b.r.Text()), ":")
+			if res[0] == "-> Set theme" {
+				wait = false
+				log.Debugf("mono found, allowing")
+				continue
+			}
+			if !wait {
+				flog.Debugf("message %#v", res)
+				rmsg := config.Message{Username: res[0], Text: strings.Join(res[1:], ":"), Channel: "sshchat", Account: b.Account, UserID: "nick"}
+				b.Remote <- rmsg
+			}
+		}
+	}
+}

bridge/steam/steam.go

@@ -16,11 +16,9 @@ import (
 type Bsteam struct {
 	c         *steam.Client
 	connected chan struct{}
-	Config    *config.Protocol
-	Remote    chan config.Message
-	Account   string
 	userMap   map[steamid.SteamId]string
 	sync.RWMutex
+	*config.BridgeConfig
 }
 
 var flog *log.Entry
@@ -30,11 +28,8 @@ func init() {
 	flog = log.WithFields(log.Fields{"module": protocol})
 }
 
-func New(cfg config.Protocol, account string, c chan config.Message) *Bsteam {
-	b := &Bsteam{}
-	b.Config = &cfg
-	b.Remote = c
-	b.Account = account
+func New(cfg *config.BridgeConfig) *Bsteam {
+	b := &Bsteam{BridgeConfig: cfg}
 	b.userMap = make(map[steamid.SteamId]string)
 	b.connected = make(chan struct{})
 	return b
@@ -60,8 +55,8 @@ func (b *Bsteam) Disconnect() error {
 
 }
 
-func (b *Bsteam) JoinChannel(channel string) error {
-	id, err := steamid.NewId(channel)
+func (b *Bsteam) JoinChannel(channel config.ChannelInfo) error {
+	id, err := steamid.NewId(channel.Name)
 	if err != nil {
 		return err
 	}
@@ -69,13 +64,17 @@ func (b *Bsteam) JoinChannel(channel string) error {
 	return nil
 }
 
-func (b *Bsteam) Send(msg config.Message) error {
+func (b *Bsteam) Send(msg config.Message) (string, error) {
+	// ignore delete messages
+	if msg.Event == config.EVENT_MSG_DELETE {
+		return "", nil
+	}
 	id, err := steamid.NewId(msg.Channel)
 	if err != nil {
-		return err
+		return "", err
 	}
 	b.c.Social.SendMessage(id, steamlang.EChatEntryType_ChatMsg, msg.Username+msg.Text)
-	return nil
+	return "", nil
 }
 
 func (b *Bsteam) getNick(id steamid.SteamId) string {
@@ -101,8 +100,13 @@ func (b *Bsteam) handleEvents() {
 		case *steam.ChatMsgEvent:
 			flog.Debugf("Receiving ChatMsgEvent: %#v", e)
 			flog.Debugf("Sending message from %s on %s to gateway", b.getNick(e.ChatterId), b.Account)
-			// for some reason we have to remove 0x18000000000000
-			channel := int64(e.ChatRoomId) - 0x18000000000000
+			var channel int64
+			if e.ChatRoomId == 0 {
+				channel = int64(e.ChatterId)
+			} else {
+				// for some reason we have to remove 0x18000000000000
+				channel = int64(e.ChatRoomId) - 0x18000000000000
+			}
 			msg := config.Message{Username: b.getNick(e.ChatterId), Text: e.Message, Channel: strconv.FormatInt(channel, 10), Account: b.Account, UserID: strconv.FormatInt(int64(e.ChatterId), 10)}
 			b.Remote <- msg
 		case *steam.PersonaStateEvent:
@@ -136,7 +140,7 @@ func (b *Bsteam) handleEvents() {
 					myLoginInfo.AuthCode = code
 				}
 			default:
-				log.Errorf("LogOnFailedEvent: ", e.Result)
+				log.Errorf("LogOnFailedEvent: %#v ", e.Result)
 				// TODO: Handle EResult_InvalidLoginAuthCode
 				return
 			}

bridge/telegram/telegram.go

@@ -1,18 +1,19 @@
 package btelegram
 
 import (
+	"regexp"
 	"strconv"
+	"strings"
 
 	"github.com/42wim/matterbridge/bridge/config"
+	"github.com/42wim/matterbridge/bridge/helper"
 	log "github.com/Sirupsen/logrus"
 	"github.com/go-telegram-bot-api/telegram-bot-api"
 )
 
 type Btelegram struct {
-	c       *tgbotapi.BotAPI
-	Config  *config.Protocol
-	Remote  chan config.Message
-	Account string
+	c *tgbotapi.BotAPI
+	*config.BridgeConfig
 }
 
 var flog *log.Entry
@@ -22,12 +23,8 @@ func init() {
 	flog = log.WithFields(log.Fields{"module": protocol})
 }
 
-func New(cfg config.Protocol, account string, c chan config.Message) *Btelegram {
-	b := &Btelegram{}
-	b.Config = &cfg
-	b.Remote = c
-	b.Account = account
-	return b
+func New(cfg *config.BridgeConfig) *Btelegram {
+	return &Btelegram{BridgeConfig: cfg}
 }
 
 func (b *Btelegram) Connect() error {
@@ -53,34 +50,87 @@ func (b *Btelegram) Disconnect() error {
 
 }
 
-func (b *Btelegram) JoinChannel(channel string) error {
+func (b *Btelegram) JoinChannel(channel config.ChannelInfo) error {
 	return nil
 }
 
-func (b *Btelegram) Send(msg config.Message) error {
+func (b *Btelegram) Send(msg config.Message) (string, error) {
 	flog.Debugf("Receiving %#v", msg)
 	chatid, err := strconv.ParseInt(msg.Channel, 10, 64)
 	if err != nil {
-		return err
+		return "", err
 	}
 
 	if b.Config.MessageFormat == "HTML" {
 		msg.Text = makeHTML(msg.Text)
 	}
-	m := tgbotapi.NewMessage(chatid, msg.Username+msg.Text)
-	if b.Config.MessageFormat == "HTML" {
-		m.ParseMode = tgbotapi.ModeHTML
+
+	if msg.Event == config.EVENT_MSG_DELETE {
+		if msg.ID == "" {
+			return "", nil
+		}
+		msgid, err := strconv.Atoi(msg.ID)
+		if err != nil {
+			return "", err
+		}
+		_, err = b.c.DeleteMessage(tgbotapi.DeleteMessageConfig{ChatID: chatid, MessageID: msgid})
+		return "", err
 	}
-	_, err = b.c.Send(m)
-	return err
+
+	// edit the message if we have a msg ID
+	if msg.ID != "" {
+		msgid, err := strconv.Atoi(msg.ID)
+		if err != nil {
+			return "", err
+		}
+		m := tgbotapi.NewEditMessageText(chatid, msgid, msg.Username+msg.Text)
+		if b.Config.MessageFormat == "HTML" {
+			m.ParseMode = tgbotapi.ModeHTML
+		}
+		_, err = b.c.Send(m)
+		if err != nil {
+			return "", err
+		}
+		return "", nil
+	}
+
+	if msg.Extra != nil {
+		// check if we have files to upload (from slack, telegram or mattermost)
+		if len(msg.Extra["file"]) > 0 {
+			var c tgbotapi.Chattable
+			for _, f := range msg.Extra["file"] {
+				fi := f.(config.FileInfo)
+				file := tgbotapi.FileBytes{fi.Name, *fi.Data}
+				re := regexp.MustCompile(".(jpg|png)$")
+				if re.MatchString(fi.Name) {
+					c = tgbotapi.NewPhotoUpload(chatid, file)
+				} else {
+					c = tgbotapi.NewDocumentUpload(chatid, file)
+				}
+				_, err := b.c.Send(c)
+				if err != nil {
+					log.Errorf("file upload failed: %#v", err)
+				}
+				if fi.Comment != "" {
+					b.sendMessage(chatid, msg.Username+fi.Comment)
+				}
+			}
+			return "", nil
+		}
+	}
+	return b.sendMessage(chatid, msg.Username+msg.Text)
 }
 
 func (b *Btelegram) handleRecv(updates <-chan tgbotapi.Update) {
 	for update := range updates {
+		flog.Debugf("Receiving from telegram: %#v", update.Message)
 		var message *tgbotapi.Message
 		username := ""
 		channel := ""
 		text := ""
+
+		fmsg := config.Message{Extra: make(map[string][]interface{})}
+
 		// handle channels
 		if update.ChannelPost != nil {
 			message = update.ChannelPost
@@ -114,23 +164,67 @@ func (b *Btelegram) handleRecv(updates <-chan tgbotapi.Update) {
 		if username == "" {
 			username = "unknown"
 		}
-		if message.Sticker != nil && b.Config.UseInsecureURL {
-			text = text + " " + b.getFileDirectURL(message.Sticker.FileID)
+		if message.Sticker != nil {
+			b.handleDownload(message.Sticker, &fmsg)
 		}
-		if message.Video != nil && b.Config.UseInsecureURL {
-			text = text + " " + b.getFileDirectURL(message.Video.FileID)
+		if message.Video != nil {
+			b.handleDownload(message.Video, &fmsg)
 		}
-		if message.Photo != nil && b.Config.UseInsecureURL {
-			photos := *message.Photo
-			// last photo is the biggest
-			text = text + " " + b.getFileDirectURL(photos[len(photos)-1].FileID)
+		if message.Photo != nil {
+			b.handleDownload(message.Photo, &fmsg)
 		}
-		if message.Document != nil && b.Config.UseInsecureURL {
-			text = text + " " + message.Document.FileName + " : " + b.getFileDirectURL(message.Document.FileID)
+		if message.Document != nil {
+			b.handleDownload(message.Document, &fmsg)
 		}
-		if text != "" {
+		if message.Voice != nil {
+			b.handleDownload(message.Voice, &fmsg)
+		}
+		if message.Audio != nil {
+			b.handleDownload(message.Audio, &fmsg)
+		}
+
+		if message.ForwardFrom != nil {
+			usernameForward := ""
+			if b.Config.UseFirstName {
+				usernameForward = message.ForwardFrom.FirstName
+			}
+			if usernameForward == "" {
+				usernameForward = message.ForwardFrom.UserName
+				if usernameForward == "" {
+					usernameForward = message.ForwardFrom.FirstName
+				}
+			}
+			if usernameForward == "" {
+				usernameForward = "unknown"
+			}
+			text = "Forwarded from " + usernameForward + ": " + text
+		}
+
+		// quote the previous message
+		if message.ReplyToMessage != nil {
+			usernameReply := ""
+			if message.ReplyToMessage.From != nil {
+				if b.Config.UseFirstName {
+					usernameReply = message.ReplyToMessage.From.FirstName
+				}
+				if usernameReply == "" {
+					usernameReply = message.ReplyToMessage.From.UserName
+					if usernameReply == "" {
+						usernameReply = message.ReplyToMessage.From.FirstName
+					}
+				}
+			}
+			if usernameReply == "" {
+				usernameReply = "unknown"
+			}
+			text = text + " (re @" + usernameReply + ":" + message.ReplyToMessage.Text + ")"
+		}
+
+		if text != "" || len(fmsg.Extra) > 0 {
 			flog.Debugf("Sending message from %s on %s to gateway", username, b.Account)
-			b.Remote <- config.Message{Username: username, Text: text, Channel: channel, Account: b.Account, UserID: strconv.Itoa(message.From.ID)}
+			msg := config.Message{Username: username, Text: text, Channel: channel, Account: b.Account, UserID: strconv.Itoa(message.From.ID), ID: strconv.Itoa(message.MessageID), Extra: fmsg.Extra}
+			flog.Debugf("Message is %#v", msg)
+			b.Remote <- msg
 		}
 	}
 }
@@ -142,3 +236,88 @@ func (b *Btelegram) getFileDirectURL(id string) string {
 	}
 	return res
 }
+
+func (b *Btelegram) handleDownload(file interface{}, msg *config.Message) {
+	size := 0
+	url := ""
+	name := ""
+	text := ""
+	fileid := ""
+	switch v := file.(type) {
+	case *tgbotapi.Audio:
+		size = v.FileSize
+		url = b.getFileDirectURL(v.FileID)
+		urlPart := strings.Split(url, "/")
+		name = urlPart[len(urlPart)-1]
+		text = " " + url
+		fileid = v.FileID
+	case *tgbotapi.Voice:
+		size = v.FileSize
+		url = b.getFileDirectURL(v.FileID)
+		urlPart := strings.Split(url, "/")
+		name = urlPart[len(urlPart)-1]
+		text = " " + url
+		if !strings.HasSuffix(name, ".ogg") {
+			name = name + ".ogg"
+		}
+		fileid = v.FileID
+	case *tgbotapi.Sticker:
+		size = v.FileSize
+		url = b.getFileDirectURL(v.FileID)
+		urlPart := strings.Split(url, "/")
+		name = urlPart[len(urlPart)-1]
+		if !strings.HasSuffix(name, ".webp") {
+			name = name + ".webp"
+		}
+		text = " " + url
+		fileid = v.FileID
+	case *tgbotapi.Video:
+		size = v.FileSize
+		url = b.getFileDirectURL(v.FileID)
+		urlPart := strings.Split(url, "/")
+		name = urlPart[len(urlPart)-1]
+		text = " " + url
+		fileid = v.FileID
+	case *[]tgbotapi.PhotoSize:
+		photos := *v
+		size = photos[len(photos)-1].FileSize
+		url = b.getFileDirectURL(photos[len(photos)-1].FileID)
+		urlPart := strings.Split(url, "/")
+		name = urlPart[len(urlPart)-1]
+		text = " " + url
+	case *tgbotapi.Document:
+		size = v.FileSize
+		url = b.getFileDirectURL(v.FileID)
+		name = v.FileName
+		text = " " + v.FileName + " : " + url
+		fileid = v.FileID
+	}
+	if b.Config.UseInsecureURL {
+		msg.Text = text
+		return
+	}
+	// if we have a file attached, download it (in memory) and put a pointer to it in msg.Extra
+	// limit to 1MB for now
+	flog.Debugf("trying to download %#v fileid %#v with size %#v", name, fileid, size)
+	if size <= 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))
+			msg.Extra["file"] = append(msg.Extra["file"], config.FileInfo{Name: name, Data: data})
+		}
+	}
+}
+
+func (b *Btelegram) sendMessage(chatid int64, text string) (string, error) {
+	m := tgbotapi.NewMessage(chatid, text)
+	if b.Config.MessageFormat == "HTML" {
+		m.ParseMode = tgbotapi.ModeHTML
+	}
+	res, err := b.c.Send(m)
+	if err != nil {
+		return "", err
+	}
+	return strconv.Itoa(res.MessageID), nil
+}

bridge/xmpp/xmpp.go

@@ -4,6 +4,7 @@ import (
 	"crypto/tls"
 	"github.com/42wim/matterbridge/bridge/config"
 	log "github.com/Sirupsen/logrus"
+	"github.com/jpillora/backoff"
 	"github.com/mattn/go-xmpp"
 
 	"strings"
@@ -13,9 +14,7 @@ import (
 type Bxmpp struct {
 	xc      *xmpp.Client
 	xmppMap map[string]string
-	Config  *config.Protocol
-	Remote  chan config.Message
-	Account string
+	*config.BridgeConfig
 }
 
 var flog *log.Entry
@@ -25,12 +24,9 @@ func init() {
 	flog = log.WithFields(log.Fields{"module": protocol})
 }
 
-func New(cfg config.Protocol, account string, c chan config.Message) *Bxmpp {
-	b := &Bxmpp{}
+func New(cfg *config.BridgeConfig) *Bxmpp {
+	b := &Bxmpp{BridgeConfig: cfg}
 	b.xmppMap = make(map[string]string)
-	b.Config = &cfg
-	b.Account = account
-	b.Remote = c
 	return b
 }
 
@@ -43,7 +39,29 @@ func (b *Bxmpp) Connect() error {
 		return err
 	}
 	flog.Info("Connection succeeded")
-	go b.handleXmpp()
+	go func() {
+		initial := true
+		bf := &backoff.Backoff{
+			Min:    time.Second,
+			Max:    5 * time.Minute,
+			Jitter: true,
+		}
+		for {
+			if initial {
+				b.handleXmpp()
+				initial = false
+			}
+			d := bf.Duration()
+			flog.Infof("Disconnected. Reconnecting in %s", d)
+			time.Sleep(d)
+			b.xc, err = b.createXMPP()
+			if err == nil {
+				b.Remote <- config.Message{Username: "system", Text: "rejoin", Channel: "", Account: b.Account, Event: config.EVENT_REJOIN_CHANNELS}
+				b.handleXmpp()
+				bf.Reset()
+			}
+		}
+	}()
 	return nil
 }
 
@@ -51,15 +69,32 @@ func (b *Bxmpp) Disconnect() error {
 	return nil
 }
 
-func (b *Bxmpp) JoinChannel(channel string) error {
-	b.xc.JoinMUCNoHistory(channel+"@"+b.Config.Muc, b.Config.Nick)
+func (b *Bxmpp) JoinChannel(channel config.ChannelInfo) error {
+	b.xc.JoinMUCNoHistory(channel.Name+"@"+b.Config.Muc, b.Config.Nick)
 	return nil
 }
 
-func (b *Bxmpp) Send(msg config.Message) error {
+func (b *Bxmpp) Send(msg config.Message) (string, error) {
+	// ignore delete messages
+	if msg.Event == config.EVENT_MSG_DELETE {
+		return "", nil
+	}
 	flog.Debugf("Receiving %#v", msg)
+	if msg.Extra != nil {
+		if len(msg.Extra["file"]) > 0 {
+			for _, f := range msg.Extra["file"] {
+				fi := f.(config.FileInfo)
+				if fi.URL != "" {
+					msg.Text = fi.URL
+				}
+				b.xc.Send(xmpp.Chat{Type: "groupchat", Remote: msg.Channel + "@" + b.Config.Muc, Text: msg.Username + msg.Text})
+			}
+			return "", nil
+		}
+	}
+
 	b.xc.Send(xmpp.Chat{Type: "groupchat", Remote: msg.Channel + "@" + b.Config.Muc, Text: msg.Username + msg.Text})
-	return nil
+	return "", nil
 }
 
 func (b *Bxmpp) createXMPP() (*xmpp.Client, error) {
@@ -75,7 +110,7 @@ func (b *Bxmpp) createXMPP() (*xmpp.Client, error) {
 		TLSConfig: tc,
 
 		//StartTLS:      false,
-		Debug:                        true,
+		Debug:                        b.General.Debug,
 		Session:                      true,
 		Status:                       "",
 		StatusMessage:                "",
@@ -96,7 +131,11 @@ func (b *Bxmpp) xmppKeepAlive() chan bool {
 		for {
 			select {
 			case <-ticker.C:
-				b.xc.PingC2S("", "")
+				flog.Debugf("PING")
+				err := b.xc.PingC2S("", "")
+				if err != nil {
+					flog.Debugf("PING failed %#v", err)
+				}
 			case <-done:
 				return
 			}
@@ -106,6 +145,7 @@ func (b *Bxmpp) xmppKeepAlive() chan bool {
 }
 
 func (b *Bxmpp) handleXmpp() error {
+	var ok bool
 	done := b.xmppKeepAlive()
 	defer close(done)
 	nodelay := time.Time{}
@@ -126,9 +166,14 @@ 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 {
+						rmsg.Event = config.EVENT_USER_ACTION
+					}
 					flog.Debugf("Sending message from %s on %s to gateway", nick, b.Account)
-					b.Remote <- config.Message{Username: nick, Text: v.Text, Channel: channel, Account: b.Account, UserID: v.Remote}
+					b.Remote <- rmsg
 				}
 			}
 		case xmpp.Presence:
@@ -136,3 +181,10 @@ func (b *Bxmpp) handleXmpp() error {
 		}
 	}
 }
+
+func (b *Bxmpp) replaceAction(text string) (string, bool) {
+	if strings.HasPrefix(text, "/me ") {
+		return strings.Replace(text, "/me ", "", -1), true
+	}
+	return text, false
+}

changelog.md

@@ -1,3 +1,237 @@
+# 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)
+* general: Allow specifying maximum download size of media using MediaDownloadSize (slack,telegram,matrix)
+* api: Add (simple, one listener) long-polling support (api). Closes #307
+* telegram: Add support for forwarded messages. Closes #313
+* telegram: Add support for Audio/Voice files (telegram). Closes #314
+* irc: Add RejoinDelay option. Delay to rejoin after channel kick (irc). Closes #322
+
+## Bugfix
+* telegram: Also use HTML in edited messages (telegram). Closes #315
+* matrix: Fix panic (matrix). Closes #316
+
+# v1.5.1
+
+## Bugfix
+* irc: Fix irc ACTION regression (irc). Closes #306
+* irc: Split on UTF-8 for MessageSplit (irc). Closes #308
+
+# v1.5.0
+## New features
+* general: remote mediaserver support. See MediaServerDownload and MediaServerUpload in matterbridge.toml.sample
+  more information on https://github.com/42wim/matterbridge/wiki/Mediaserver-setup-%5Badvanced%5D
+* general: Add support for ReplaceNicks using regexp to replace nicks. Closes #269 (see matterbridge.toml.sample)
+* general: Add support for ReplaceMessages using regexp to replace messages. #269 (see matterbridge.toml.sample)
+* irc: Add MessageSplit option to split messages on MessageLength (irc). Closes #281
+* matrix: Add support for uploading images/video (matrix). Closes #302
+* matrix: Add support for uploaded images/video (matrix) 
+
+## Bugfix
+* telegram: Add webp extension to stickers if necessary (telegram)
+* mattermost: Break when re-login fails (mattermost)
+
+# v1.4.1
+## Bugfix
+* telegram: fix issue with uploading for images/documents/stickers
+* slack: remove double messages sent to other bridges when uploading files
+* irc: Fix strict user handling of girc (irc). Closes #298 
+
+# v1.4.0
+## Breaking changes
+* general: `[general]` settings don't override the specific bridge settings
+
+## New features
+* irc: Replace sorcix/irc and go-ircevent with girc, this should be give better reconnects
+* steam: Add support for bridging to individual steam chats. (steam) (#294)
+* telegram: Download files from telegram and reupload to supported bridges (telegram). #278
+* slack: Add support to upload files to slack, from bridges with private urls like slack/mattermost/telegram. (slack)
+* discord: Add support to upload files to discord, from bridges with private urls like slack/mattermost/telegram. (discord)
+* general: Add systemd service file (#291)
+* general: Add support for DEBUG=1 envvar to enable debug. Closes #283
+* general: Add StripNick option, only allow alphanumerical nicks. Closes #285
+
+## Bugfix
+* gitter: Use room.URI instead of room.Name. (gitter) (#293)
+* slack: Allow slack messages with variables (eg. @here) to be formatted correctly. (slack) (#288)
+* slack: Resolve slack channel to human-readable name. (slack) (#282)
+* slack: Use DisplayName instead of deprecated username (slack). Closes #276
+* slack: Allowed Slack bridge to extract simpler link format. (#287)
+* irc: Strip irc colors correct, strip also ctrl chars (irc)
+
+# v1.3.1
+## New features
+* Support mattermost 4.3.0 and every other 4.x as api4 should be stable (mattermost)
+## Bugfix
+* Use bot username if specified (slack). Closes #273
+
+# v1.3.0
+## New features
+* Relay slack_attachments from mattermost to slack (slack). Closes #260
+* Add support for quoting previous message when replying (telegram). #237
+* Add support for Quakenet auth (irc). Closes #263
+* Download files (max size 1MB) from slack and reupload to mattermost (slack/mattermost). Closes #255
+
+## Enhancements
+* Backoff for 60 seconds when reconnecting too fast (irc) #267
+* Use override username if specified (mattermost). #260
+
+## Bugfix
+* Try to not forward slack unfurls. Closes #266
+
+# v1.2.0
+## Breaking changes
+* If you're running a discord bridge, update to this release before 16 october otherwise
+it will stop working. (see https://discordapp.com/developers/docs/reference)
+
+## New features
+* general: Add delete support. (actually delete the messages on bridges that support it)
+    (mattermost,discord,gitter,slack,telegram)
+
+## Bugfix
+* Do not break messages on newline (slack). Closes #258 
+* Update telegram library
+* Update discord library (supports v6 API now). Old API is deprecated on 16 October
+
+# v1.1.2
+## New features
+* general: also build darwin binaries
+* mattermost: add support for mattermost 4.2.x
+
+## Bugfix 
+* mattermost: Send images when text is empty regression. (mattermost). Closes #254
+* slack: also send the first messsage after connect. #252
+
+# v1.1.1
+## Bugfix
+* mattermost: fix public links
+
+# v1.1.0
+## New features
+* general: Add better editing support. (actually edit the messages on bridges that support it)
+	(mattermost,discord,gitter,slack,telegram)
+* mattermost: use API v4 (removes support for mattermost < 3.8)
+* mattermost: add support for personal access tokens (since mattermost 4.1)
+	Use ```Token="yourtoken"``` in mattermost config
+	See https://docs.mattermost.com/developer/personal-access-tokens.html for more info
+* matrix: Relay notices (matrix). Closes #243
+* irc: Add a charset option. Closes #247
+
+## Bugfix
+* slack: Handle leave/join events (slack). Closes #246
+* slack: Replace mentions from other bridges. (slack). Closes #233
+* gitter: remove ZWSP after messages
+
+# v1.0.1
+## New features
+* mattermost: add support for mattermost 4.1.x
+* discord: allow a webhookURL per channel #239
+
+# v1.0.0
+## New features
+* general: Add action support for slack,mattermost,irc,gitter,matrix,xmpp,discord. #199
+* discord: Shows the username instead of the server nickname #234
+
+# v1.0.0-rc1
+## New features
+* general: Add action support for slack,mattermost,irc,gitter,matrix,xmpp,discord. #199
+
+## Bugfix
+* general: Handle same account in multiple gateways better
+* mattermost: ignore edited messages with reactions
+* mattermost: Fix double posting of edited messages by using lru cache
+* irc: update vendor
+
+# v0.16.3
+## Bugfix
+* general: Fix in/out logic. Closes #224 
+* general: Fix message modification
+* slack: Disable message from other bots when using webhooks (slack)
+* mattermost: Return better error messages on mattermost connect
+
+# v0.16.2
+## New features
+* general: binary builds against latest commit are now available on https://bintray.com/42wim/nightly/Matterbridge/_latestVersion
+
+## Bugfix
+* slack: fix loop introduced by relaying message of other bots #219
+* slack: Suppress parent message when child message is received #218
+* mattermost: fix regression when using webhookurl and webhookbindaddress #221
+
+# v0.16.1
+## New features
+* slack: also relay messages of other bots #213
+* mattermost: show also links if public links have not been enabled.
+
+## Bugfix
+* mattermost, slack: fix connecting logic #216
+
+# v0.16.0
+## Breaking Changes
+* URL,UseAPI,BindAddress is deprecated. Your config has to be updated.
+  * URL => WebhookURL
+  * BindAddress => WebhookBindAddress
+  * UseAPI => removed 
+  This change allows you to specify a WebhookURL and a token (slack,discord), so that
+  messages will be sent with the webhook, but received via the token (API)
+  If you have not specified WebhookURL and WebhookBindAddress the API (login or token) 
+  will be used automatically. (no need for UseAPI)
+
+## New features
+* mattermost: add support for mattermost 4.0
+* steam: New protocol support added (http://store.steampowered.com/)
+* discord: Support for embedded messages (sent by other bots)
+  Shows title, description and URL of embedded messages (sent by other bots)
+  To enable add ```ShowEmbeds=true``` to your discord config 
+* discord: ```WebhookURL``` posting support added (thanks @saury07) #204
+  Discord API does not allow to change the name of the user posting, but webhooks does.
+
+## Changes
+* general: all :emoji: will be converted to unicode, providing consistent emojis across all bridges
+* telegram: Add ```UseInsecureURL``` option for telegram (default false)
+  WARNING! If enabled this will relay GIF/stickers/documents and other attachments as URLs
+  Those URLs will contain your bot-token. This may not be what you want.
+  For now there is no secure way to relay GIF/stickers/documents without seeing your token.
+
+## Bugfix
+* irc: detect charset and try to convert it to utf-8 before sending it to other bridges. #209 #210
+* slack: Remove label from URLs (slack). #205
+* slack: Relay <>& correctly to other bridges #215
+* steam: Fix channel id bug in steam (channels are off by 0x18000000000000)
+* general: various improvements
+* general: samechannelgateway now relays messages correct again #207
+
+
 # v0.16.0-rc2
 ## Breaking Changes
 * URL,UseAPI,BindAddress is deprecated. Your config has to be updated.

ci/bintray.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+go version |grep go1.9 || exit
+VERSION=$(git describe --tags)
+mkdir ci/binaries
+GOOS=windows GOARCH=amd64 go build -ldflags "-s -w -X main.githash=$(git log --pretty=format:'%h' -n 1)" -o ci/binaries/matterbridge-$VERSION-windows-amd64.exe
+GOOS=linux GOARCH=amd64 go build -ldflags "-s -w -X main.githash=$(git log --pretty=format:'%h' -n 1)" -o ci/binaries/matterbridge-$VERSION-linux-amd64
+GOOS=linux GOARCH=arm go build -ldflags "-s -w -X main.githash=$(git log --pretty=format:'%h' -n 1)" -o ci/binaries/matterbridge-$VERSION-linux-arm
+GOOS=darwin GOARCH=amd64 go build -ldflags "-s -w -X main.githash=$(git log --pretty=format:'%h' -n 1)" -o ci/binaries/matterbridge-$VERSION-darwin-amd64
+cd ci
+cat > deploy.json <<EOF
+{
+    "package": {
+        "name": "Matterbridge",
+        "repo": "nightly",
+        "subject": "42wim"
+    },
+    "version": {
+        "name": "$VERSION"
+    },
+    "files":
+        [
+        {"includePattern": "ci/binaries/(.*)", "uploadPattern":"\$1"}
+        ],
+    "publish": true
+}
+EOF
+

contrib/matterbridge.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=matterbridge
+After=network.target
+
+[Service]
+ExecStart=/usr/bin/matterbridge -conf /etc/matterbridge/bridge.toml
+User=matterbridge
+Group=matterbridge
+
+[Install]
+WantedBy=multi-user.target

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

@@ -1,11 +1,16 @@
 package gateway
 
 import (
+	"bytes"
 	"fmt"
 	"github.com/42wim/matterbridge/bridge"
 	"github.com/42wim/matterbridge/bridge/config"
 	log "github.com/Sirupsen/logrus"
 	//	"github.com/davecgh/go-spew/spew"
+	"crypto/sha1"
+	"github.com/hashicorp/golang-lru"
+	"github.com/peterhellberg/emojilib"
+	"net/http"
 	"regexp"
 	"strings"
 	"time"
@@ -13,62 +18,42 @@ import (
 
 type Gateway struct {
 	*config.Config
-	MyConfig        *config.Gateway
-	Bridges         map[string]*bridge.Bridge
-	Channels        map[string]*config.ChannelInfo
-	ChannelOptions  map[string]config.ChannelOptions
-	Names           map[string]bool
-	Name            string
-	Message         chan config.Message
-	DestChannelFunc func(msg *config.Message, dest bridge.Bridge) []config.ChannelInfo
+	Router         *Router
+	MyConfig       *config.Gateway
+	Bridges        map[string]*bridge.Bridge
+	Channels       map[string]*config.ChannelInfo
+	ChannelOptions map[string]config.ChannelOptions
+	Message        chan config.Message
+	Name           string
+	Messages       *lru.Cache
 }
 
-func New(cfg *config.Config) *Gateway {
-	gw := &Gateway{}
-	gw.Config = cfg
-	gw.Channels = make(map[string]*config.ChannelInfo)
-	gw.Message = make(chan config.Message)
-	gw.Bridges = make(map[string]*bridge.Bridge)
-	gw.Names = make(map[string]bool)
-	gw.DestChannelFunc = gw.getDestChannel
+type BrMsgID struct {
+	br        *bridge.Bridge
+	ID        string
+	ChannelID string
+}
+
+func New(cfg config.Gateway, r *Router) *Gateway {
+	gw := &Gateway{Channels: make(map[string]*config.ChannelInfo), Message: r.Message,
+		Router: r, Bridges: make(map[string]*bridge.Bridge), Config: r.Config}
+	cache, _ := lru.New(5000)
+	gw.Messages = cache
+	gw.AddConfig(&cfg)
 	return gw
 }
 
 func (gw *Gateway) AddBridge(cfg *config.Bridge) error {
-	for _, br := range gw.Bridges {
-		if br.Account == cfg.Account {
-			gw.mapChannelsToBridge(br)
-			err := br.JoinChannels()
-			if err != nil {
-				return fmt.Errorf("Bridge %s failed to join channel: %v", br.Account, err)
-			}
-			return nil
-		}
+	br := gw.Router.getBridge(cfg.Account)
+	if br == nil {
+		br = bridge.New(gw.Config, cfg, gw.Message)
 	}
-	log.Infof("Starting bridge: %s ", cfg.Account)
-	br := bridge.New(gw.Config, cfg, gw.Message)
 	gw.mapChannelsToBridge(br)
 	gw.Bridges[cfg.Account] = br
-	err := br.Connect()
-	if err != nil {
-		return fmt.Errorf("Bridge %s failed to start: %v", br.Account, err)
-	}
-	err = br.JoinChannels()
-	if err != nil {
-		return fmt.Errorf("Bridge %s failed to join channel: %v", br.Account, err)
-	}
 	return nil
 }
 
 func (gw *Gateway) AddConfig(cfg *config.Gateway) error {
-	if gw.Names[cfg.Name] {
-		return fmt.Errorf("Gateway with name %s already exists", cfg.Name)
-	}
-	if cfg.Name == "" {
-		return fmt.Errorf("%s", "Gateway without name found")
-	}
-	log.Infof("Starting gateway: %s", cfg.Name)
-	gw.Names[cfg.Name] = true
 	gw.Name = cfg.Name
 	gw.MyConfig = cfg
 	gw.mapChannels()
@@ -89,41 +74,6 @@ func (gw *Gateway) mapChannelsToBridge(br *bridge.Bridge) {
 	}
 }
 
-func (gw *Gateway) Start() error {
-	go gw.handleReceive()
-	return nil
-}
-
-func (gw *Gateway) handleReceive() {
-	for {
-		select {
-		case msg := <-gw.Message:
-			if msg.Event == config.EVENT_FAILURE {
-				for _, br := range gw.Bridges {
-					if msg.Account == br.Account {
-						go gw.reconnectBridge(br)
-					}
-				}
-			}
-			if msg.Event == config.EVENT_REJOIN_CHANNELS {
-				for _, br := range gw.Bridges {
-					if msg.Account == br.Account {
-						br.Joined = make(map[string]bool)
-						br.JoinChannels()
-					}
-				}
-				continue
-			}
-			if !gw.ignoreMessage(&msg) {
-				msg.Timestamp = time.Now()
-				for _, br := range gw.Bridges {
-					gw.handleMessage(msg, br)
-				}
-			}
-		}
-	}
-}
-
 func (gw *Gateway) reconnectBridge(br *bridge.Bridge) {
 	br.Disconnect()
 	time.Sleep(time.Second * 5)
@@ -139,51 +89,61 @@ RECONNECT:
 	br.JoinChannels()
 }
 
-func (gw *Gateway) mapChannels() error {
-	for _, br := range append(gw.MyConfig.Out, gw.MyConfig.InOut...) {
+func (gw *Gateway) mapChannelConfig(cfg []config.Bridge, direction string) {
+	for _, br := range cfg {
 		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
-		_, ok := gw.Channels[ID]
-		if !ok {
-			channel := &config.ChannelInfo{Name: br.Channel, Direction: "out", ID: ID, Options: br.Options, Account: br.Account,
-				GID: make(map[string]bool), SameChannel: make(map[string]bool)}
-			channel.GID[gw.Name] = true
+		if _, ok := gw.Channels[ID]; !ok {
+			channel := &config.ChannelInfo{Name: br.Channel, Direction: direction, ID: ID, Options: br.Options, Account: br.Account,
+				SameChannel: make(map[string]bool)}
 			channel.SameChannel[gw.Name] = br.SameChannel
 			gw.Channels[channel.ID] = channel
+		} else {
+			// if we already have a key and it's not our current direction it means we have a bidirectional inout
+			if gw.Channels[ID].Direction != direction {
+				gw.Channels[ID].Direction = "inout"
+			}
 		}
-		gw.Channels[ID].GID[gw.Name] = true
 		gw.Channels[ID].SameChannel[gw.Name] = br.SameChannel
 	}
+}
 
-	for _, br := range append(gw.MyConfig.In, gw.MyConfig.InOut...) {
-		if isApi(br.Account) {
-			br.Channel = "api"
-		}
-		ID := br.Channel + br.Account
-		_, ok := gw.Channels[ID]
-		if !ok {
-			channel := &config.ChannelInfo{Name: br.Channel, Direction: "in", ID: ID, Options: br.Options, Account: br.Account,
-				GID: make(map[string]bool), SameChannel: make(map[string]bool)}
-			channel.GID[gw.Name] = true
-			channel.SameChannel[gw.Name] = br.SameChannel
-			gw.Channels[channel.ID] = channel
-		}
-		gw.Channels[ID].GID[gw.Name] = true
-		gw.Channels[ID].SameChannel[gw.Name] = br.SameChannel
-	}
+func (gw *Gateway) mapChannels() error {
+	gw.mapChannelConfig(gw.MyConfig.In, "in")
+	gw.mapChannelConfig(gw.MyConfig.Out, "out")
+	gw.mapChannelConfig(gw.MyConfig.InOut, "inout")
 	return nil
 }
 
 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
+		if channel.ID == getChannelID(*msg) {
+			// we only have destinations if the original message is from an "in" (sending) channel
+			if !strings.Contains(channel.Direction, "in") {
+				return channels
+			}
+			continue
+		}
+	}
 	for _, channel := range gw.Channels {
 		if _, ok := gw.Channels[getChannelID(*msg)]; !ok {
 			continue
 		}
-		// add gateway to message
-		gw.validGatewayDest(msg, channel)
 
 		// do samechannelgateway logic
 		if channel.SameChannel[msg.Gateway] {
@@ -192,48 +152,89 @@ func (gw *Gateway) getDestChannel(msg *config.Message, dest bridge.Bridge) []con
 			}
 			continue
 		}
-
-		if channel.Direction == "out" && channel.Account == dest.Account && gw.validGatewayDest(msg, channel) {
+		if strings.Contains(channel.Direction, "out") && channel.Account == dest.Account && gw.validGatewayDest(msg, channel) {
 			channels = append(channels, *channel)
 		}
 	}
 	return channels
 }
 
-func (gw *Gateway) handleMessage(msg config.Message, dest *bridge.Bridge) {
+func (gw *Gateway) handleMessage(msg config.Message, dest *bridge.Bridge) []*BrMsgID {
+	var brMsgIDs []*BrMsgID
+
+	// TODO refactor
+	// only slack now, check will have to be done in the different bridges.
+	// we need to check if we can't use fallback or text in other bridges
+	if msg.Extra != nil {
+		if dest.Protocol != "discord" &&
+			dest.Protocol != "slack" &&
+			dest.Protocol != "mattermost" &&
+			dest.Protocol != "telegram" &&
+			dest.Protocol != "matrix" &&
+			dest.Protocol != "xmpp" {
+			if msg.Text == "" {
+				return brMsgIDs
+			}
+		}
+	}
 	// only relay join/part when configged
 	if msg.Event == config.EVENT_JOIN_LEAVE && !gw.Bridges[dest.Account].Config.ShowJoinPart {
-		return
+		return brMsgIDs
 	}
 	// broadcast to every out channel (irc QUIT)
 	if msg.Channel == "" && msg.Event != config.EVENT_JOIN_LEAVE {
 		log.Debug("empty channel")
-		return
+		return brMsgIDs
 	}
 	originchannel := msg.Channel
 	origmsg := msg
-	for _, channel := range gw.DestChannelFunc(&msg, *dest) {
+	channels := gw.getDestChannel(&msg, *dest)
+	for _, channel := range channels {
 		// do not send to ourself
 		if channel.ID == getChannelID(origmsg) {
 			continue
 		}
 		log.Debugf("Sending %#v from %s (%s) to %s (%s)", msg, msg.Account, originchannel, dest.Account, channel.Name)
 		msg.Channel = channel.Name
-		gw.modifyAvatar(&msg, dest)
-		gw.modifyUsername(&msg, dest)
+		msg.Avatar = gw.modifyAvatar(origmsg, dest)
+		msg.Username = gw.modifyUsername(origmsg, dest)
+		msg.ID = ""
+		if res, ok := gw.Messages.Get(origmsg.ID); ok {
+			IDs := res.([]*BrMsgID)
+			for _, id := range IDs {
+				// 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
+				}
+			}
+		}
 		// for api we need originchannel as channel
 		if dest.Protocol == "api" {
 			msg.Channel = originchannel
 		}
-		err := dest.Send(msg)
+		mID, err := dest.Send(msg)
 		if err != nil {
 			fmt.Println(err)
 		}
+		// append the message ID (mID) from this bridge (dest) to our brMsgIDs slice
+		if mID != "" {
+			brMsgIDs = append(brMsgIDs, &BrMsgID{dest, mID, channel.ID})
+		}
 	}
+	return brMsgIDs
 }
 
 func (gw *Gateway) ignoreMessage(msg *config.Message) bool {
+	// if we don't have the bridge, ignore it
+	if _, ok := gw.Bridges[msg.Account]; !ok {
+		return true
+	}
 	if msg.Text == "" {
+		// we have an attachment or actual bytes
+		if msg.Extra != nil && (msg.Extra["attachments"] != nil || len(msg.Extra["file"]) > 0) {
+			return false
+		}
 		log.Debugf("ignoring empty message %#v from %s", msg, msg.Account)
 		return true
 	}
@@ -260,13 +261,31 @@ func (gw *Gateway) ignoreMessage(msg *config.Message) bool {
 	return false
 }
 
-func (gw *Gateway) modifyUsername(msg *config.Message, dest *bridge.Bridge) {
+func (gw *Gateway) modifyUsername(msg config.Message, dest *bridge.Bridge) string {
 	br := gw.Bridges[msg.Account]
 	msg.Protocol = br.Protocol
-	nick := gw.Config.General.RemoteNickFormat
-	if nick == "" {
-		nick = dest.Config.RemoteNickFormat
+	if gw.Config.General.StripNick || dest.Config.StripNick {
+		re := regexp.MustCompile("[^a-zA-Z0-9]+")
+		msg.Username = re.ReplaceAllString(msg.Username, "")
 	}
+	nick := dest.Config.RemoteNickFormat
+	if nick == "" {
+		nick = gw.Config.General.RemoteNickFormat
+	}
+
+	// loop to replace nicks
+	for _, outer := range br.Config.ReplaceNicks {
+		search := outer[0]
+		replace := outer[1]
+		// TODO move compile to bridge init somewhere
+		re, err := regexp.Compile(search)
+		if err != nil {
+			log.Errorf("regexp in %s failed: %s", msg.Account, err)
+			break
+		}
+		msg.Username = re.ReplaceAllString(msg.Username, replace)
+	}
+
 	if len(msg.Username) > 0 {
 		// fix utf-8 issue #193
 		i := 0
@@ -279,13 +298,13 @@ func (gw *Gateway) modifyUsername(msg *config.Message, dest *bridge.Bridge) {
 		}
 		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)
-	msg.Username = nick
+	nick = strings.Replace(nick, "{NICK}", msg.Username, -1)
+	return nick
 }
 
-func (gw *Gateway) modifyAvatar(msg *config.Message, dest *bridge.Bridge) {
+func (gw *Gateway) modifyAvatar(msg config.Message, dest *bridge.Bridge) string {
 	iconurl := gw.Config.General.IconURL
 	if iconurl == "" {
 		iconurl = dest.Config.IconURL
@@ -294,6 +313,58 @@ func (gw *Gateway) modifyAvatar(msg *config.Message, dest *bridge.Bridge) {
 	if msg.Avatar == "" {
 		msg.Avatar = iconurl
 	}
+	return msg.Avatar
+}
+
+func (gw *Gateway) modifyMessage(msg *config.Message) {
+	// replace :emoji: to unicode
+	msg.Text = emojilib.Replace(msg.Text)
+	br := gw.Bridges[msg.Account]
+	// loop to replace messages
+	for _, outer := range br.Config.ReplaceMessages {
+		search := outer[0]
+		replace := outer[1]
+		// TODO move compile to bridge init somewhere
+		re, err := regexp.Compile(search)
+		if err != nil {
+			log.Errorf("regexp in %s failed: %s", msg.Account, err)
+			break
+		}
+		msg.Text = re.ReplaceAllString(msg.Text, replace)
+	}
+
+	// messages from api have Gateway specified, don't overwrite
+	if msg.Protocol != "api" {
+		msg.Gateway = gw.Name
+	}
+}
+
+func (gw *Gateway) handleFiles(msg *config.Message) {
+	if msg.Extra == nil || gw.Config.General.MediaServerUpload == "" {
+		return
+	}
+	if len(msg.Extra["file"]) > 0 {
+		client := &http.Client{
+			Timeout: time.Second * 5,
+		}
+		for i, f := range msg.Extra["file"] {
+			fi := f.(config.FileInfo)
+			sha1sum := fmt.Sprintf("%x", sha1.Sum(*fi.Data))
+			reader := bytes.NewReader(*fi.Data)
+			url := gw.Config.General.MediaServerUpload + "/" + sha1sum + "/" + fi.Name
+			durl := gw.Config.General.MediaServerDownload + "/" + sha1sum + "/" + fi.Name
+			extra := msg.Extra["file"][i].(config.FileInfo)
+			extra.URL = durl
+			msg.Extra["file"][i] = extra
+			req, _ := http.NewRequest("PUT", url, reader)
+			req.Header.Set("Content-Type", "binary/octet-stream")
+			_, err := client.Do(req)
+			if err != nil {
+				log.Errorf("mediaserver upload failed: %#v", err)
+			}
+			log.Debugf("mediaserver download URL = %s", durl)
+		}
+	}
 }
 
 func getChannelID(msg config.Message) string {
@@ -301,40 +372,9 @@ func getChannelID(msg config.Message) string {
 }
 
 func (gw *Gateway) validGatewayDest(msg *config.Message, channel *config.ChannelInfo) bool {
-	GIDmap := gw.Channels[getChannelID(*msg)].GID
-
-	// gateway is specified in message (probably from api)
-	if msg.Gateway != "" {
-		return channel.GID[msg.Gateway]
-	}
-
-	// check if we are running a samechannelgateway.
-	// if it is and the channel name matches it's ok, otherwise we shouldn't use this channel.
-	for k, _ := range GIDmap {
-		if channel.SameChannel[k] == true {
-			if msg.Channel == channel.Name {
-				// add the gateway to our message
-				msg.Gateway = k
-				return true
-			} else {
-				return false
-			}
-		}
-	}
-	// check if we are in the correct gateway
-	for k, _ := range GIDmap {
-		if channel.GID[k] == true {
-			// add the gateway to our message
-			msg.Gateway = k
-			return true
-		}
-	}
-	return false
+	return msg.Gateway == gw.Name
 }
 
 func isApi(account string) bool {
-	if strings.HasPrefix(account, "api.") {
-		return true
-	}
-	return false
+	return strings.HasPrefix(account, "api.")
 }

gateway/gateway_test.go

@@ -0,0 +1,288 @@
+package gateway
+
+import (
+	"fmt"
+	"github.com/42wim/matterbridge/bridge/config"
+	"github.com/BurntSushi/toml"
+	"github.com/stretchr/testify/assert"
+	"strconv"
+
+	"testing"
+)
+
+var testconfig = `
+[irc.freenode]
+[mattermost.test]
+[gitter.42wim]
+[discord.test]
+[slack.test]
+
+[[gateway]]
+    name = "bridge1"
+    enable=true
+    
+    [[gateway.inout]]
+    account = "irc.freenode"
+    channel = "#wimtesting"
+    
+    [[gateway.inout]]
+    account="gitter.42wim"
+    channel="42wim/testroom"
+    #channel="matterbridge/Lobby"
+
+    [[gateway.inout]]
+    account = "discord.test"
+    channel = "general"
+    
+    [[gateway.inout]]
+    account="slack.test"
+    channel="testing"
+	`
+
+var testconfig2 = `
+[irc.freenode]
+[mattermost.test]
+[gitter.42wim]
+[discord.test]
+[slack.test]
+
+[[gateway]]
+    name = "bridge1"
+    enable=true
+    
+    [[gateway.in]]
+    account = "irc.freenode"
+    channel = "#wimtesting"
+    
+    [[gateway.in]]
+    account="gitter.42wim"
+    channel="42wim/testroom"
+
+    [[gateway.inout]]
+    account = "discord.test"
+    channel = "general"
+    
+    [[gateway.out]]
+    account="slack.test"
+    channel="testing"
+[[gateway]]
+    name = "bridge2"
+    enable=true
+    
+    [[gateway.in]]
+    account = "irc.freenode"
+    channel = "#wimtesting2"
+    
+    [[gateway.out]]
+    account="gitter.42wim"
+    channel="42wim/testroom"
+
+    [[gateway.out]]
+    account = "discord.test"
+    channel = "general2"
+	`
+var testconfig3 = `
+[irc.zzz]
+[telegram.zzz]
+[slack.zzz]
+[[gateway]]
+name="bridge"
+enable=true
+
+    [[gateway.inout]]
+    account="irc.zzz"
+    channel="#main"		
+
+    [[gateway.inout]]
+    account="telegram.zzz"
+    channel="-1111111111111"
+
+    [[gateway.inout]]
+    account="slack.zzz"
+    channel="irc"	
+	
+[[gateway]]
+name="announcements"
+enable=true
+	
+    [[gateway.in]]
+    account="telegram.zzz"
+    channel="-2222222222222"	
+	
+    [[gateway.out]]
+    account="irc.zzz"
+    channel="#main"		
+	
+    [[gateway.out]]
+    account="irc.zzz"
+    channel="#main-help"	
+
+    [[gateway.out]]
+    account="telegram.zzz"
+    channel="--333333333333"	
+
+    [[gateway.out]]
+    account="slack.zzz"
+    channel="general"		
+	
+[[gateway]]
+name="bridge2"
+enable=true
+
+    [[gateway.inout]]
+    account="irc.zzz"
+    channel="#main-help"	
+
+    [[gateway.inout]]
+    account="telegram.zzz"
+    channel="--444444444444"	
+
+	
+[[gateway]]
+name="bridge3"
+enable=true
+
+    [[gateway.inout]]
+    account="irc.zzz"
+    channel="#main-telegram"	
+
+    [[gateway.inout]]
+    account="telegram.zzz"
+    channel="--333333333333"
+`
+
+func maketestRouter(input string) *Router {
+	var cfg *config.Config
+	if _, err := toml.Decode(input, &cfg); err != nil {
+		fmt.Println(err)
+	}
+	r, err := NewRouter(cfg)
+	if err != nil {
+		fmt.Println(err)
+	}
+	return r
+}
+func TestNewRouter(t *testing.T) {
+	var cfg *config.Config
+	if _, err := toml.Decode(testconfig, &cfg); err != nil {
+		fmt.Println(err)
+	}
+	r, err := NewRouter(cfg)
+	if err != nil {
+		fmt.Println(err)
+	}
+	assert.Equal(t, 1, len(r.Gateways))
+	assert.Equal(t, 4, len(r.Gateways["bridge1"].Bridges))
+	assert.Equal(t, 4, len(r.Gateways["bridge1"].Channels))
+
+	r = maketestRouter(testconfig2)
+	assert.Equal(t, 2, len(r.Gateways))
+	assert.Equal(t, 4, len(r.Gateways["bridge1"].Bridges))
+	assert.Equal(t, 3, len(r.Gateways["bridge2"].Bridges))
+	assert.Equal(t, 4, len(r.Gateways["bridge1"].Channels))
+	assert.Equal(t, 3, len(r.Gateways["bridge2"].Channels))
+	assert.Equal(t, &config.ChannelInfo{Name: "42wim/testroom", Direction: "out",
+		ID: "42wim/testroomgitter.42wim", Account: "gitter.42wim",
+		SameChannel: map[string]bool{"bridge2": false}},
+		r.Gateways["bridge2"].Channels["42wim/testroomgitter.42wim"])
+	assert.Equal(t, &config.ChannelInfo{Name: "42wim/testroom", Direction: "in",
+		ID: "42wim/testroomgitter.42wim", Account: "gitter.42wim",
+		SameChannel: map[string]bool{"bridge1": false}},
+		r.Gateways["bridge1"].Channels["42wim/testroomgitter.42wim"])
+	assert.Equal(t, &config.ChannelInfo{Name: "general", Direction: "inout",
+		ID: "generaldiscord.test", Account: "discord.test",
+		SameChannel: map[string]bool{"bridge1": false}},
+		r.Gateways["bridge1"].Channels["generaldiscord.test"])
+}
+
+func TestGetDestChannel(t *testing.T) {
+	r := maketestRouter(testconfig2)
+	msg := &config.Message{Text: "test", Channel: "general", Account: "discord.test", Gateway: "bridge1", Protocol: "discord", Username: "test"}
+	for _, br := range r.Gateways["bridge1"].Bridges {
+		switch br.Account {
+		case "discord.test":
+			assert.Equal(t, []config.ChannelInfo{{Name: "general", Account: "discord.test", Direction: "inout", ID: "generaldiscord.test", SameChannel: map[string]bool{"bridge1": false}, Options: config.ChannelOptions{Key: ""}}},
+				r.Gateways["bridge1"].getDestChannel(msg, *br))
+		case "slack.test":
+			assert.Equal(t, []config.ChannelInfo{{Name: "testing", Account: "slack.test", Direction: "out", ID: "testingslack.test", SameChannel: map[string]bool{"bridge1": false}, Options: config.ChannelOptions{Key: ""}}},
+				r.Gateways["bridge1"].getDestChannel(msg, *br))
+		case "gitter.42wim":
+			assert.Equal(t, []config.ChannelInfo(nil), r.Gateways["bridge1"].getDestChannel(msg, *br))
+		case "irc.freenode":
+			assert.Equal(t, []config.ChannelInfo(nil), r.Gateways["bridge1"].getDestChannel(msg, *br))
+		}
+	}
+}
+
+func TestGetDestChannelAdvanced(t *testing.T) {
+	r := maketestRouter(testconfig3)
+	var msgs []*config.Message
+	i := 0
+	for _, gw := range r.Gateways {
+		for _, channel := range gw.Channels {
+			msgs = append(msgs, &config.Message{Text: "text" + strconv.Itoa(i), Channel: channel.Name, Account: channel.Account, Gateway: gw.Name, Username: "user" + strconv.Itoa(i)})
+			i++
+		}
+	}
+	hits := make(map[string]int)
+	for _, gw := range r.Gateways {
+		for _, br := range gw.Bridges {
+			for _, msg := range msgs {
+				channels := gw.getDestChannel(msg, *br)
+				if gw.Name != msg.Gateway {
+					assert.Equal(t, []config.ChannelInfo(nil), channels)
+					continue
+				}
+				switch gw.Name {
+				case "bridge":
+					if (msg.Channel == "#main" || msg.Channel == "-1111111111111" || msg.Channel == "irc") && (msg.Account == "irc.zzz" || msg.Account == "telegram.zzz" || msg.Account == "slack.zzz") {
+						hits[gw.Name]++
+						switch br.Account {
+						case "irc.zzz":
+							assert.Equal(t, []config.ChannelInfo{{Name: "#main", Account: "irc.zzz", Direction: "inout", ID: "#mainirc.zzz", SameChannel: map[string]bool{"bridge": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
+						case "telegram.zzz":
+							assert.Equal(t, []config.ChannelInfo{{Name: "-1111111111111", Account: "telegram.zzz", Direction: "inout", ID: "-1111111111111telegram.zzz", SameChannel: map[string]bool{"bridge": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
+						case "slack.zzz":
+							assert.Equal(t, []config.ChannelInfo{{Name: "irc", Account: "slack.zzz", Direction: "inout", ID: "ircslack.zzz", SameChannel: map[string]bool{"bridge": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
+						}
+					}
+				case "bridge2":
+					if (msg.Channel == "#main-help" || msg.Channel == "--444444444444") && (msg.Account == "irc.zzz" || msg.Account == "telegram.zzz") {
+						hits[gw.Name]++
+						switch br.Account {
+						case "irc.zzz":
+							assert.Equal(t, []config.ChannelInfo{{Name: "#main-help", Account: "irc.zzz", Direction: "inout", ID: "#main-helpirc.zzz", SameChannel: map[string]bool{"bridge2": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
+						case "telegram.zzz":
+							assert.Equal(t, []config.ChannelInfo{{Name: "--444444444444", Account: "telegram.zzz", Direction: "inout", ID: "--444444444444telegram.zzz", SameChannel: map[string]bool{"bridge2": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
+						}
+					}
+				case "bridge3":
+					if (msg.Channel == "#main-telegram" || msg.Channel == "--333333333333") && (msg.Account == "irc.zzz" || msg.Account == "telegram.zzz") {
+						hits[gw.Name]++
+						switch br.Account {
+						case "irc.zzz":
+							assert.Equal(t, []config.ChannelInfo{{Name: "#main-telegram", Account: "irc.zzz", Direction: "inout", ID: "#main-telegramirc.zzz", SameChannel: map[string]bool{"bridge3": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
+						case "telegram.zzz":
+							assert.Equal(t, []config.ChannelInfo{{Name: "--333333333333", Account: "telegram.zzz", Direction: "inout", ID: "--333333333333telegram.zzz", SameChannel: map[string]bool{"bridge3": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
+						}
+					}
+				case "announcements":
+					if msg.Channel != "-2222222222222" && msg.Account != "telegram" {
+						assert.Equal(t, []config.ChannelInfo(nil), channels)
+						continue
+					}
+					hits[gw.Name]++
+					switch br.Account {
+					case "irc.zzz":
+						assert.Equal(t, []config.ChannelInfo{{Name: "#main", Account: "irc.zzz", Direction: "out", ID: "#mainirc.zzz", SameChannel: map[string]bool{"announcements": false}, Options: config.ChannelOptions{Key: ""}}, {Name: "#main-help", Account: "irc.zzz", Direction: "out", ID: "#main-helpirc.zzz", SameChannel: map[string]bool{"announcements": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
+					case "slack.zzz":
+						assert.Equal(t, []config.ChannelInfo{{Name: "general", Account: "slack.zzz", Direction: "out", ID: "generalslack.zzz", SameChannel: map[string]bool{"announcements": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
+					case "telegram.zzz":
+						assert.Equal(t, []config.ChannelInfo{{Name: "--333333333333", Account: "telegram.zzz", Direction: "out", ID: "--333333333333telegram.zzz", SameChannel: map[string]bool{"announcements": false}, Options: config.ChannelOptions{Key: ""}}}, channels)
+					}
+				}
+			}
+		}
+	}
+	assert.Equal(t, map[string]int{"bridge3": 4, "bridge": 9, "announcements": 3, "bridge2": 4}, hits)
+}

gateway/router.go

@@ -0,0 +1,113 @@
+package gateway
+
+import (
+	"fmt"
+	"github.com/42wim/matterbridge/bridge"
+	"github.com/42wim/matterbridge/bridge/config"
+	"github.com/42wim/matterbridge/gateway/samechannel"
+	log "github.com/Sirupsen/logrus"
+	//	"github.com/davecgh/go-spew/spew"
+	"time"
+)
+
+type Router struct {
+	Gateways map[string]*Gateway
+	Message  chan config.Message
+	*config.Config
+}
+
+func NewRouter(cfg *config.Config) (*Router, error) {
+	r := &Router{}
+	r.Config = cfg
+	r.Message = make(chan config.Message)
+	r.Gateways = make(map[string]*Gateway)
+	sgw := samechannelgateway.New(cfg)
+	gwconfigs := sgw.GetConfig()
+
+	for _, entry := range append(gwconfigs, cfg.Gateway...) {
+		if !entry.Enable {
+			continue
+		}
+		if entry.Name == "" {
+			return nil, fmt.Errorf("%s", "Gateway without name found")
+		}
+		if _, ok := r.Gateways[entry.Name]; ok {
+			return nil, fmt.Errorf("Gateway with name %s already exists", entry.Name)
+		}
+		r.Gateways[entry.Name] = New(entry, r)
+	}
+	return r, nil
+}
+
+func (r *Router) Start() error {
+	m := make(map[string]*bridge.Bridge)
+	for _, gw := range r.Gateways {
+		for _, br := range gw.Bridges {
+			m[br.Account] = br
+		}
+	}
+	for _, br := range m {
+		log.Infof("Starting bridge: %s ", br.Account)
+		err := br.Connect()
+		if err != nil {
+			return fmt.Errorf("Bridge %s failed to start: %v", br.Account, err)
+		}
+		err = br.JoinChannels()
+		if err != nil {
+			return fmt.Errorf("Bridge %s failed to join channel: %v", br.Account, err)
+		}
+	}
+	go r.handleReceive()
+	return nil
+}
+
+func (r *Router) getBridge(account string) *bridge.Bridge {
+	for _, gw := range r.Gateways {
+		if br, ok := gw.Bridges[account]; ok {
+			return br
+		}
+	}
+	return nil
+}
+
+func (r *Router) handleReceive() {
+	for msg := range r.Message {
+		if msg.Event == config.EVENT_FAILURE {
+		Loop:
+			for _, gw := range r.Gateways {
+				for _, br := range gw.Bridges {
+					if msg.Account == br.Account {
+						go gw.reconnectBridge(br)
+						break Loop
+					}
+				}
+			}
+		}
+		if msg.Event == config.EVENT_REJOIN_CHANNELS {
+			for _, gw := range r.Gateways {
+				for _, br := range gw.Bridges {
+					if msg.Account == br.Account {
+						br.Joined = make(map[string]bool)
+						br.JoinChannels()
+					}
+				}
+			}
+		}
+		for _, gw := range r.Gateways {
+			// record all the message ID's of the different bridges
+			var msgIDs []*BrMsgID
+			if !gw.ignoreMessage(&msg) {
+				msg.Timestamp = time.Now()
+				gw.modifyMessage(&msg)
+				gw.handleFiles(&msg)
+				for _, br := range gw.Bridges {
+					msgIDs = append(msgIDs, gw.handleMessage(msg, br)...)
+				}
+				// only add the message ID if it doesn't already exists
+				if _, ok := gw.Messages.Get(msg.ID); !ok && msg.ID != "" {
+					gw.Messages.Add(msg.ID, msgIDs)
+				}
+			}
+		}
+	}
+}

gateway/samechannel/samechannel_test.go

@@ -0,0 +1,31 @@
+package samechannelgateway
+
+import (
+	"fmt"
+	"github.com/42wim/matterbridge/bridge/config"
+	"github.com/BurntSushi/toml"
+	"github.com/stretchr/testify/assert"
+
+	"testing"
+)
+
+var testconfig = `
+[mattermost.test]
+[slack.test]
+
+[[samechannelgateway]]
+   enable = true
+   name = "blah"
+      accounts = [ "mattermost.test","slack.test" ]
+      channels = [ "testing","testing2","testing10"]
+`
+
+func TestGetConfig(t *testing.T) {
+	var cfg *config.Config
+	if _, err := toml.Decode(testconfig, &cfg); err != nil {
+		fmt.Println(err)
+	}
+	sgw := New(cfg)
+	configs := sgw.GetConfig()
+	assert.Equal(t, []config.Gateway{{Name: "blah", Enable: true, In: []config.Bridge(nil), Out: []config.Bridge(nil), InOut: []config.Bridge{{Account: "mattermost.test", Channel: "testing", Options: config.ChannelOptions{Key: ""}, SameChannel: true}, {Account: "mattermost.test", Channel: "testing2", Options: config.ChannelOptions{Key: ""}, SameChannel: true}, {Account: "mattermost.test", Channel: "testing10", Options: config.ChannelOptions{Key: ""}, SameChannel: true}, {Account: "slack.test", Channel: "testing", Options: config.ChannelOptions{Key: ""}, SameChannel: true}, {Account: "slack.test", Channel: "testing2", Options: config.ChannelOptions{Key: ""}, SameChannel: true}, {Account: "slack.test", Channel: "testing10", Options: config.ChannelOptions{Key: ""}, SameChannel: true}}}}, configs)
+}

hook/rockethook/rockethook.go

@@ -99,10 +99,9 @@ func (c *Client) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 // Receive returns an incoming message from mattermost outgoing webhooks URL.
 func (c *Client) Receive() Message {
-	for {
-		select {
-		case msg := <-c.In:
-			return msg
-		}
+	var msg Message
+	for msg = range c.In {
+		return msg
 	}
+	return msg
 }

matterbridge.go

@@ -5,14 +5,14 @@ import (
 	"fmt"
 	"github.com/42wim/matterbridge/bridge/config"
 	"github.com/42wim/matterbridge/gateway"
-	"github.com/42wim/matterbridge/gateway/samechannel"
 	log "github.com/Sirupsen/logrus"
 	"github.com/google/gops/agent"
+	"os"
 	"strings"
 )
 
 var (
-	version = "0.16.0-rc2"
+	version = "1.7.0"
 	githash string
 )
 
@@ -34,7 +34,7 @@ func main() {
 		fmt.Printf("version: %s %s\n", version, githash)
 		return
 	}
-	if *flagDebug {
+	if *flagDebug || os.Getenv("DEBUG") == "1" {
 		log.Info("Enabling debug")
 		log.SetLevel(log.DebugLevel)
 	}
@@ -43,20 +43,12 @@ func main() {
 		log.Println("WARNING: THIS IS A DEVELOPMENT VERSION. Things may break.")
 	}
 	cfg := config.NewConfig(*flagConfig)
-
-	g := gateway.New(cfg)
-	sgw := samechannelgateway.New(cfg)
-	gwconfigs := sgw.GetConfig()
-	for _, gw := range append(gwconfigs, cfg.Gateway...) {
-		if !gw.Enable {
-			continue
-		}
-		err := g.AddConfig(&gw)
-		if err != nil {
-			log.Fatalf("Starting gateway failed: %s", err)
-		}
+	cfg.General.Debug = *flagDebug
+	r, err := gateway.NewRouter(cfg)
+	if err != nil {
+		log.Fatalf("Starting gateway failed: %s", err)
 	}
-	err := g.Start()
+	err = r.Start()
 	if err != nil {
 		log.Fatalf("Starting gateway failed: %s", err)
 	}

matterbridge.toml.sample

@@ -32,16 +32,38 @@ UseSASL=false
 #OPTIONAL (default false)
 SkipTLSVerify=true
 
+#If you know your charset, you can specify it manually. 
+#Otherwise it tries to detect this automatically. Select one below
+# "iso-8859-2:1987", "iso-8859-9:1989", "866", "latin9", "iso-8859-10:1992", "iso-ir-109", "hebrew", 
+# "cp932", "iso-8859-15", "cp437", "utf-16be", "iso-8859-3:1988", "windows-1251", "utf16", "latin6", 
+# "latin3", "iso-8859-1:1987", "iso-8859-9", "utf-16le", "big5", "cp819", "asmo-708", "utf-8", 
+# "ibm437", "iso-ir-157", "iso-ir-144", "latin4", "850", "iso-8859-5", "iso-8859-5:1988", "l3", 
+# "windows-31j", "utf8", "iso-8859-3", "437", "greek", "iso-8859-8", "l6", "l9-iso-8859-15", 
+# "iso-8859-2", "latin2", "iso-ir-100", "iso-8859-6", "arabic", "iso-ir-148", "us-ascii", "x-sjis", 
+# "utf16be", "iso-8859-8:1988", "utf16le", "l4", "utf-16", "iso-ir-138", "iso-8859-7", "iso-8859-7:1987", 
+# "windows-1252", "l2", "koi8-r", "iso8859-1", "latin1", "ecma-114", "iso-ir-110", "elot-928", 
+# "iso-ir-126", "iso-8859-1", "iso-ir-127", "cp850", "cyrillic", "greek8", "windows-1250", "iso-latin-1", 
+# "l5", "ibm866", "cp866", "ms-kanji", "ibm850", "ecma-118", "iso-ir-101", "ibm819", "l1", "iso-8859-6:1987", 
+# "latin5", "ascii", "sjis", "iso-8859-10", "iso-8859-4", "iso-8859-4:1988", "shift-jis
+# The select charset will be converted to utf-8 when sent to other bridges.
+#OPTIONAL (default "")
+Charset=""
+
 #Your nick on irc. 
 #REQUIRED
 Nick="matterbot"
 
 #If you registered your bot with a service like Nickserv on freenode. 
 #Also being used when UseSASL=true
+#
+#Note: if you want do to quakenet auth, set NickServNick="Q@CServe.quakenet.org"
 #OPTIONAL
 NickServNick="nickserv"
 NickServPassword="secret"
 
+#OPTIONAL only used for quakenet auth
+NickServUsername="username"
+
 #Flood control
 #Delay in milliseconds between each message send to the IRC server
 #OPTIONAL (default 1300)
@@ -58,6 +80,15 @@ MessageQueue=30
 #OPTIONAL (default 400)
 MessageLength=400
 
+#Split messages on MessageLength instead of showing the <message clipped>
+#WARNING: this could lead to flooding
+#OPTIONAL (default false)
+MessageSplit=false
+
+#Delay in seconds to rejoin a channel when kicked
+#OPTIONAL (default 0)
+RejoinDelay=0
+
 #Nicks you want to ignore. 
 #Messages from those users will not be sent to other bridges.
 #OPTIONAL
@@ -69,6 +100,23 @@ IgnoreNicks="ircspammer1 ircspammer2"
 #OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
 IgnoreMessages="^~~ badword"
 
+#messages you want to replace.
+#it replaces outgoing messages from the bridge.
+#so you need to place it by the sending bridge definition.
+#regular expressions supported
+#some examples:
+#this replaces cat => dog and sleep => awake
+#replacemessages=[ ["cat","dog"], ["sleep","awake"] ]
+#this replaces every number with number.  123 => numbernumbernumber
+#replacemessages=[ ["[0-9]","number"] ]
+#optional (default empty)
+ReplaceMessages=[ ["cat","dog"] ]
+
+#nicks you want to replace.
+#see replacemessages for syntaxa
+#optional (default empty)
+ReplaceNicks=[ ["user--","user"] ]
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -82,6 +130,11 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 #OPTIONAL (default false)
 ShowJoinPart=false
 
+#StripNick only allows alphanumerical nicks. See https://github.com/42wim/matterbridge/issues/285
+#It will strip other characters from the nick
+#OPTIONAL (default false)
+StripNick=false
+
 ###################################################################
 #XMPP section
 ###################################################################
@@ -127,6 +180,23 @@ IgnoreNicks="ircspammer1 ircspammer2"
 #OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
 IgnoreMessages="^~~ badword"
 
+#Messages you want to replace.
+#It replaces outgoing messages from the bridge.
+#So you need to place it by the sending bridge definition.
+#Regular expressions supported
+#Some examples:
+#This replaces cat => dog and sleep => awake
+#ReplaceMessages=[ ["cat","dog"], ["sleep","awake"] ]
+#This Replaces every number with number.  123 => numbernumbernumber
+#ReplaceMessages=[ ["[0-9]","number"] ]
+#OPTIONAL (default empty)
+ReplaceMessages=[ ["cat","dog"] ]
+
+#Nicks you want to replace.
+#See ReplaceMessages for syntaxA
+#OPTIONAL (default empty)
+ReplaceNicks=[ ["user--","user"] ]
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -139,6 +209,10 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 #OPTIONAL (default false)
 ShowJoinPart=false
 
+#StripNick only allows alphanumerical nicks. See https://github.com/42wim/matterbridge/issues/285
+#It will strip other characters from the nick
+#OPTIONAL (default false)
+StripNick=false
 
 ###################################################################
 #hipchat section
@@ -177,6 +251,23 @@ IgnoreNicks="spammer1 spammer2"
 #OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
 IgnoreMessages="^~~ badword"
 
+#messages you want to replace.
+#it replaces outgoing messages from the bridge.
+#so you need to place it by the sending bridge definition.
+#regular expressions supported
+#some examples:
+#this replaces cat => dog and sleep => awake
+#replacemessages=[ ["cat","dog"], ["sleep","awake"] ]
+#this replaces every number with number.  123 => numbernumbernumber
+#replacemessages=[ ["[0-9]","number"] ]
+#optional (default empty)
+ReplaceMessages=[ ["cat","dog"] ]
+
+#nicks you want to replace.
+#see replacemessages for syntaxa
+#optional (default empty)
+ReplaceNicks=[ ["user--","user"] ]
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -189,6 +280,10 @@ RemoteNickFormat="[{PROTOCOL}/{BRIDGE}] <{NICK}> "
 #OPTIONAL (default false)
 ShowJoinPart=false
 
+#StripNick only allows alphanumerical nicks. See https://github.com/42wim/matterbridge/issues/285
+#It will strip other characters from the nick
+#OPTIONAL (default false)
+StripNick=false
 
 ###################################################################
 #mattermost section
@@ -213,6 +308,11 @@ Team="yourteam"
 Login="yourlogin"
 Password="yourpass"
 
+#personal access token of the bot.
+#new feature since mattermost 4.1. See https://docs.mattermost.com/developer/personal-access-tokens.html
+#OPTIONAL (you can use token instead of login/password)
+#Token="abcdefghijklm"
+
 #Enable this to make a http connection (instead of https) to your mattermost. 
 #OPTIONAL (default false)
 NoTLS=false
@@ -282,6 +382,23 @@ IgnoreNicks="ircspammer1 ircspammer2"
 #OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
 IgnoreMessages="^~~ badword"
 
+#messages you want to replace.
+#it replaces outgoing messages from the bridge.
+#so you need to place it by the sending bridge definition.
+#regular expressions supported
+#some examples:
+#this replaces cat => dog and sleep => awake
+#replacemessages=[ ["cat","dog"], ["sleep","awake"] ]
+#this replaces every number with number.  123 => numbernumbernumber
+#replacemessages=[ ["[0-9]","number"] ]
+#optional (default empty)
+ReplaceMessages=[ ["cat","dog"] ]
+
+#nicks you want to replace.
+#see replacemessages for syntaxa
+#optional (default empty)
+ReplaceNicks=[ ["user--","user"] ]
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -294,6 +411,11 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 #OPTIONAL (default false)
 ShowJoinPart=false
 
+#StripNick only allows alphanumerical nicks. See https://github.com/42wim/matterbridge/issues/285
+#It will strip other characters from the nick
+#OPTIONAL (default false)
+StripNick=false
+
 ###################################################################
 #Gitter section
 #Best to make a dedicated gitter account for the bot.
@@ -321,6 +443,23 @@ IgnoreNicks="ircspammer1 ircspammer2"
 #OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
 IgnoreMessages="^~~ badword"
 
+#messages you want to replace.
+#it replaces outgoing messages from the bridge.
+#so you need to place it by the sending bridge definition.
+#regular expressions supported
+#some examples:
+#this replaces cat => dog and sleep => awake
+#replacemessages=[ ["cat","dog"], ["sleep","awake"] ]
+#this replaces every number with number.  123 => numbernumbernumber
+#replacemessages=[ ["[0-9]","number"] ]
+#optional (default empty)
+ReplaceMessages=[ ["cat","dog"] ]
+
+#nicks you want to replace.
+#see replacemessages for syntaxa
+#optional (default empty)
+ReplaceNicks=[ ["user--","user"] ]
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -333,6 +472,11 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 #OPTIONAL (default false)
 ShowJoinPart=false
 
+#StripNick only allows alphanumerical nicks. See https://github.com/42wim/matterbridge/issues/285
+#It will strip other characters from the nick
+#OPTIONAL (default false)
+StripNick=false
+
 ###################################################################
 #slack section
 ###################################################################
@@ -361,7 +505,6 @@ WebhookURL="https://hooks.slack.com/services/yourhook"
 #AND DEDICATED BOT USER WHEN POSSIBLE!
 #Address to listen on for outgoing webhook requests from slack
 #See account settings - integrations - outgoing webhooks on slack
-#This setting will not be used when useAPI is eanbled
 #webhooks
 #OPTIONAL
 WebhookBindAddress="0.0.0.0:9999"
@@ -408,6 +551,23 @@ IgnoreNicks="ircspammer1 ircspammer2"
 #OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
 IgnoreMessages="^~~ badword"
 
+#messages you want to replace.
+#it replaces outgoing messages from the bridge.
+#so you need to place it by the sending bridge definition.
+#regular expressions supported
+#some examples:
+#this replaces cat => dog and sleep => awake
+#replacemessages=[ ["cat","dog"], ["sleep","awake"] ]
+#this replaces every number with number.  123 => numbernumbernumber
+#replacemessages=[ ["[0-9]","number"] ]
+#optional (default empty)
+ReplaceMessages=[ ["cat","dog"] ]
+
+#nicks you want to replace.
+#see replacemessages for syntaxa
+#optional (default empty)
+ReplaceNicks=[ ["user--","user"] ]
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -420,6 +580,11 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 #OPTIONAL (default false)
 ShowJoinPart=false
 
+#StripNick only allows alphanumerical nicks. See https://github.com/42wim/matterbridge/issues/285
+#It will strip other characters from the nick
+#OPTIONAL (default false)
+StripNick=false
+
 ###################################################################
 #discord section
 ###################################################################
@@ -443,7 +608,12 @@ Server="yourservername"
 #OPTIONAL (default false)
 ShowEmbeds=false
 
+#Shows the username (minus the discriminator) instead of the server nickname
+#OPTIONAL (default false)
+UseUserName=false
+
 #Specify WebhookURL. If given, will relay messages using the Webhook, which gives a better look to messages.
+#This only works if you have one discord channel, if you have multiple discord channels you'll have to specify it in the gateway config
 #OPTIONAL (default empty)
 WebhookURL="Yourwebhooktokenhere"
 
@@ -466,6 +636,23 @@ IgnoreNicks="ircspammer1 ircspammer2"
 #OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
 IgnoreMessages="^~~ badword"
 
+#messages you want to replace.
+#it replaces outgoing messages from the bridge.
+#so you need to place it by the sending bridge definition.
+#regular expressions supported
+#some examples:
+#this replaces cat => dog and sleep => awake
+#replacemessages=[ ["cat","dog"], ["sleep","awake"] ]
+#this replaces every number with number.  123 => numbernumbernumber
+#replacemessages=[ ["[0-9]","number"] ]
+#optional (default empty)
+ReplaceMessages=[ ["cat","dog"] ]
+
+#nicks you want to replace.
+#see replacemessages for syntaxa
+#optional (default empty)
+ReplaceNicks=[ ["user--","user"] ]
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -478,6 +665,11 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 #OPTIONAL (default false)
 ShowJoinPart=false
 
+#StripNick only allows alphanumerical nicks. See https://github.com/42wim/matterbridge/issues/285
+#It will strip other characters from the nick
+#OPTIONAL (default false)
+StripNick=false
+
 ###################################################################
 #telegram section
 ###################################################################
@@ -528,6 +720,23 @@ IgnoreNicks="spammer1 spammer2"
 #OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
 IgnoreMessages="^~~ badword"
 
+#messages you want to replace.
+#it replaces outgoing messages from the bridge.
+#so you need to place it by the sending bridge definition.
+#regular expressions supported
+#some examples:
+#this replaces cat => dog and sleep => awake
+#replacemessages=[ ["cat","dog"], ["sleep","awake"] ]
+#this replaces every number with number.  123 => numbernumbernumber
+#replacemessages=[ ["[0-9]","number"] ]
+#optional (default empty)
+ReplaceMessages=[ ["cat","dog"] ]
+
+#nicks you want to replace.
+#see replacemessages for syntaxa
+#optional (default empty)
+ReplaceNicks=[ ["user--","user"] ]
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -540,6 +749,10 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 #OPTIONAL (default false)
 ShowJoinPart=false
 
+#StripNick only allows alphanumerical nicks. See https://github.com/42wim/matterbridge/issues/285
+#It will strip other characters from the nick
+#OPTIONAL (default false)
+StripNick=false
 
 ###################################################################
 #rocketchat section
@@ -592,6 +805,23 @@ IgnoreNicks="ircspammer1 ircspammer2"
 #OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
 IgnoreMessages="^~~ badword"
 
+#messages you want to replace.
+#it replaces outgoing messages from the bridge.
+#so you need to place it by the sending bridge definition.
+#regular expressions supported
+#some examples:
+#this replaces cat => dog and sleep => awake
+#replacemessages=[ ["cat","dog"], ["sleep","awake"] ]
+#this replaces every number with number.  123 => numbernumbernumber
+#replacemessages=[ ["[0-9]","number"] ]
+#optional (default empty)
+ReplaceMessages=[ ["cat","dog"] ]
+
+#nicks you want to replace.
+#see replacemessages for syntaxa
+#optional (default empty)
+ReplaceNicks=[ ["user--","user"] ]
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -604,6 +834,11 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 #OPTIONAL (default false)
 ShowJoinPart=false
 
+#StripNick only allows alphanumerical nicks. See https://github.com/42wim/matterbridge/issues/285
+#It will strip other characters from the nick
+#OPTIONAL (default false)
+StripNick=false
+
 ###################################################################
 #matrix section
 ###################################################################
@@ -647,6 +882,23 @@ IgnoreNicks="spammer1 spammer2"
 #OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
 IgnoreMessages="^~~ badword"
 
+#messages you want to replace.
+#it replaces outgoing messages from the bridge.
+#so you need to place it by the sending bridge definition.
+#regular expressions supported
+#some examples:
+#this replaces cat => dog and sleep => awake
+#replacemessages=[ ["cat","dog"], ["sleep","awake"] ]
+#this replaces every number with number.  123 => numbernumbernumber
+#replacemessages=[ ["[0-9]","number"] ]
+#optional (default empty)
+ReplaceMessages=[ ["cat","dog"] ]
+
+#nicks you want to replace.
+#see replacemessages for syntaxa
+#optional (default empty)
+ReplaceNicks=[ ["user--","user"] ]
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -659,6 +911,11 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 #OPTIONAL (default false)
 ShowJoinPart=false
 
+#StripNick only allows alphanumerical nicks. See https://github.com/42wim/matterbridge/issues/285
+#It will strip other characters from the nick
+#OPTIONAL (default false)
+StripNick=false
+
 ###################################################################
 #steam section
 ###################################################################
@@ -696,6 +953,23 @@ IgnoreNicks="spammer1 spammer2"
 #OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
 IgnoreMessages="^~~ badword"
 
+#messages you want to replace.
+#it replaces outgoing messages from the bridge.
+#so you need to place it by the sending bridge definition.
+#regular expressions supported
+#some examples:
+#this replaces cat => dog and sleep => awake
+#replacemessages=[ ["cat","dog"], ["sleep","awake"] ]
+#this replaces every number with number.  123 => numbernumbernumber
+#replacemessages=[ ["[0-9]","number"] ]
+#optional (default empty)
+ReplaceMessages=[ ["cat","dog"] ]
+
+#nicks you want to replace.
+#see replacemessages for syntaxa
+#optional (default empty)
+ReplaceNicks=[ ["user--","user"] ]
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -708,6 +982,10 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 #OPTIONAL (default false)
 ShowJoinPart=false
 
+#StripNick only allows alphanumerical nicks. See https://github.com/42wim/matterbridge/issues/285
+#It will strip other characters from the nick
+#OPTIONAL (default false)
+StripNick=false
 
 ###################################################################
 #API
@@ -742,7 +1020,7 @@ RemoteNickFormat="{NICK}"
 ###################################################################
 #General configuration
 ###################################################################
-#Settings here override specific settings for each protocol
+# Settings here are defaults that each protocol can override
 [general]
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
@@ -751,6 +1029,35 @@ RemoteNickFormat="{NICK}"
 #OPTIONAL (default empty)
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
+#StripNick only allows alphanumerical nicks. See https://github.com/42wim/matterbridge/issues/285
+#It will strip other characters from the nick
+#OPTIONAL (default false)
+StripNick=false
+
+
+#MediaServerUpload and MediaServerDownload are used for uploading images/files/video to
+#a remote "mediaserver" (a webserver like caddy for example).
+#When configured images/files uploaded on bridges like mattermost,slack, telegram will be downloaded
+#and uploaded again to MediaServerUpload URL
+#The MediaServerDownload will be used so that bridges without native uploading support:
+#gitter, irc and xmpp will be shown links to the files on MediaServerDownload
+#
+#More information https://github.com/42wim/matterbridge/wiki/Mediaserver-setup-%5Badvanced%5D
+#OPTIONAL (default empty)
+MediaServerUpload="https://user:pass@yourserver.com/upload"
+#OPTIONAL (default empty)
+MediaServerDownload="https://youserver.com/download"
+
+#MediaDownloadSize is the maximum size of attachments, videos, images
+#matterbridge will download and upload this file to bridges that also support uploading files.
+#eg downloading from slack to upload it to mattermost
+#
+#It will only download from bridges that don't have public links available, which are for the moment
+#slack, telegram and matrix
+#
+#Optional (default 1000000 (1 megabyte))
+MediaDownloadSize=1000000
+
 ###################################################################
 #Gateway configuration
 ###################################################################
@@ -786,7 +1093,7 @@ enable=true
     #mattermost - channel (the channel name as seen in the URL, not the displayname)
     #gitter     - username/room 
     #xmpp       - channel
-    #slack      - channel (the channel name as seen in the URL, not the displayname)
+    #slack      - channel (without the #)
     #discord    - channel (without the #)
     #           - ID:123456789 (where 123456789 is the channel ID) 
     #               (https://github.com/42wim/matterbridge/issues/57)
@@ -829,6 +1136,14 @@ enable=true
         #OPTIONAL - your irc channel key
         key="yourkey"
 
+    [[gateway.inout]]
+    account="discord.game"
+    channel="mygreatgame"
+
+        #OPTIONAL - webhookurl only works for discord (it needs a different URL for each cahnnel)
+        [gateway.inout.options]
+        webhookurl=""https://discordapp.com/api/webhooks/123456789123456789/C9WPqExYWONPDZabcdef-def1434FGFjstasJX9pYht73y"
+
     #API example
     #[[gateway.inout]]
     #account="api.local"

matterbridge.toml.simple

@@ -6,7 +6,6 @@
 
 [mattermost]
     [mattermost.work]
-    useAPI=true
     #do not prefix it wit http:// or https://
     Server="yourmattermostserver.domain" 
     Team="yourteam"

matterclient/matterclient.go

@@ -1,6 +1,7 @@
 package matterclient
 
 import (
+	"crypto/md5"
 	"crypto/tls"
 	"encoding/json"
 	"errors"
@@ -8,7 +9,6 @@ import (
 	"net/http"
 	"net/http/cookiejar"
 	"net/url"
-	"strconv"
 	"strings"
 	"sync"
 	"time"
@@ -16,6 +16,7 @@ import (
 	log "github.com/Sirupsen/logrus"
 
 	"github.com/gorilla/websocket"
+	"github.com/hashicorp/golang-lru"
 	"github.com/jpillora/backoff"
 	"github.com/mattermost/platform/model"
 )
@@ -43,8 +44,8 @@ type Message struct {
 type Team struct {
 	Team         *model.Team
 	Id           string
-	Channels     *model.ChannelList
-	MoreChannels *model.ChannelList
+	Channels     []*model.Channel
+	MoreChannels []*model.Channel
 	Users        map[string]*model.User
 }
 
@@ -53,7 +54,7 @@ type MMClient struct {
 	*Credentials
 	Team          *Team
 	OtherTeams    []*Team
-	Client        *model.Client
+	Client        *model.Client4
 	User          *model.User
 	Users         map[string]*model.User
 	MessageChan   chan *Message
@@ -66,6 +67,7 @@ type MMClient struct {
 	WsPingChan    chan *model.WebSocketResponse
 	ServerVersion string
 	OnWsConnect   func()
+	lruCache      *lru.Cache
 }
 
 func New(login, pass, team, server string) *MMClient {
@@ -73,6 +75,7 @@ func New(login, pass, team, server string) *MMClient {
 	mmclient := &MMClient{Credentials: cred, MessageChan: make(chan *Message, 100), Users: make(map[string]*model.User)}
 	mmclient.log = log.WithFields(log.Fields{"module": "matterclient"})
 	log.SetFormatter(&log.TextFormatter{FullTimestamp: true})
+	mmclient.lruCache, _ = lru.New(500)
 	return mmclient
 }
 
@@ -88,7 +91,7 @@ func (m *MMClient) SetLogLevel(level string) {
 func (m *MMClient) Login() error {
 	// check if this is a first connect or a reconnection
 	firstConnection := true
-	if m.WsConnected == true {
+	if m.WsConnected {
 		firstConnection = false
 	}
 	m.WsConnected = false
@@ -105,18 +108,21 @@ func (m *MMClient) Login() error {
 		uriScheme = "http://"
 	}
 	// login to mattermost
-	m.Client = model.NewClient(uriScheme + m.Credentials.Server)
+	m.Client = model.NewAPIv4Client(uriScheme + m.Credentials.Server)
 	m.Client.HttpClient.Transport = &http.Transport{TLSClientConfig: &tls.Config{InsecureSkipVerify: m.SkipTLSVerify}, Proxy: http.ProxyFromEnvironment}
 	m.Client.HttpClient.Timeout = time.Second * 10
 
 	for {
 		d := b.Duration()
 		// bogus call to get the serverversion
-		m.Client.GetClientProperties()
-		if firstConnection && !supportedVersion(m.Client.ServerVersion) {
-			return fmt.Errorf("unsupported mattermost version: %s", m.Client.ServerVersion)
+		_, resp := m.Client.Logout()
+		if resp.Error != nil {
+			return fmt.Errorf("%#v", resp.Error.Error())
 		}
-		m.ServerVersion = m.Client.ServerVersion
+		if firstConnection && !supportedVersion(resp.ServerVersion) {
+			return fmt.Errorf("unsupported mattermost version: %s", resp.ServerVersion)
+		}
+		m.ServerVersion = resp.ServerVersion
 		if m.ServerVersion == "" {
 			m.log.Debugf("Server not up yet, reconnecting in %s", d)
 			time.Sleep(d)
@@ -127,30 +133,33 @@ func (m *MMClient) Login() error {
 	}
 	b.Reset()
 
-	var myinfo *model.Result
+	var resp *model.Response
+	//var myinfo *model.Result
 	var appErr *model.AppError
 	var logmsg = "trying login"
 	for {
 		m.log.Debugf("%s %s %s %s", logmsg, m.Credentials.Team, m.Credentials.Login, m.Credentials.Server)
 		if strings.Contains(m.Credentials.Pass, model.SESSION_COOKIE_TOKEN) {
-			m.log.Debugf(logmsg+" with %s", model.SESSION_COOKIE_TOKEN)
+			m.log.Debugf(logmsg + " with token")
 			token := strings.Split(m.Credentials.Pass, model.SESSION_COOKIE_TOKEN+"=")
 			if len(token) != 2 {
 				return errors.New("incorrect MMAUTHTOKEN. valid input is MMAUTHTOKEN=yourtoken")
 			}
 			m.Client.HttpClient.Jar = m.createCookieJar(token[1])
-			m.Client.MockSession(token[1])
-			myinfo, appErr = m.Client.GetMe("")
-			if appErr != nil {
-				return errors.New(appErr.DetailedError)
+			m.Client.AuthToken = token[1]
+			m.Client.AuthType = model.HEADER_BEARER
+			m.User, resp = m.Client.GetMe("")
+			if resp.Error != nil {
+				return resp.Error
 			}
-			if myinfo.Data.(*model.User) == nil {
+			if m.User == nil {
 				m.log.Errorf("LOGIN TOKEN: %s is invalid", m.Credentials.Pass)
 				return errors.New("invalid " + model.SESSION_COOKIE_TOKEN)
 			}
 		} else {
-			myinfo, appErr = m.Client.Login(m.Credentials.Login, m.Credentials.Pass)
+			m.User, resp = m.Client.Login(m.Credentials.Login, m.Credentials.Pass)
 		}
+		appErr = resp.Error
 		if appErr != nil {
 			d := b.Duration()
 			m.log.Debug(appErr.DetailedError)
@@ -178,8 +187,6 @@ func (m *MMClient) Login() error {
 	if m.Team == nil {
 		return errors.New("team not found")
 	}
-	// set our team id as default route
-	m.Client.SetTeamId(m.Team.Id)
 
 	m.wsConnect()
 
@@ -200,7 +207,7 @@ func (m *MMClient) wsConnect() {
 	}
 
 	// setup websocket connection
-	wsurl := wsScheme + m.Credentials.Server + model.API_URL_SUFFIX_V3 + "/users/websocket"
+	wsurl := wsScheme + m.Credentials.Server + model.API_URL_SUFFIX_V4 + "/websocket"
 	header := http.Header{}
 	header.Set(model.HEADER_AUTH, "BEARER "+m.Client.AuthToken)
 
@@ -234,9 +241,9 @@ func (m *MMClient) Logout() error {
 		m.log.Debug("Not invalidating session in logout, credential is a token")
 		return nil
 	}
-	_, err := m.Client.Logout()
-	if err != nil {
-		return err
+	_, resp := m.Client.Logout()
+	if resp.Error != nil {
+		return resp.Error
 	}
 	return nil
 }
@@ -267,7 +274,17 @@ func (m *MMClient) WsReceiver() {
 			m.log.Debugf("WsReceiver event: %#v", event)
 			msg := &Message{Raw: &event, Team: m.Credentials.Team}
 			m.parseMessage(msg)
-			m.MessageChan <- msg
+			// check if we didn't empty the message
+			if msg.Text != "" {
+				m.MessageChan <- msg
+				continue
+			}
+			// if we have file attached but the message is empty, also send it
+			if msg.Post != nil {
+				if msg.Text != "" || len(msg.Post.FileIds) > 0 || msg.Post.Type == "slack_attachment" {
+					m.MessageChan <- msg
+				}
+			}
 			continue
 		}
 
@@ -282,7 +299,7 @@ func (m *MMClient) WsReceiver() {
 
 func (m *MMClient) parseMessage(rmsg *Message) {
 	switch rmsg.Raw.Event {
-	case model.WEBSOCKET_EVENT_POSTED, model.WEBSOCKET_EVENT_POST_EDITED:
+	case model.WEBSOCKET_EVENT_POSTED, model.WEBSOCKET_EVENT_POST_EDITED, model.WEBSOCKET_EVENT_POST_DELETED:
 		m.parseActionPost(rmsg)
 		/*
 			case model.ACTION_USER_REMOVED:
@@ -303,6 +320,13 @@ func (m *MMClient) parseResponse(rmsg model.WebSocketResponse) {
 }
 
 func (m *MMClient) parseActionPost(rmsg *Message) {
+	// add post to cache, if it already exists don't relay this again.
+	// this should fix reposts
+	if ok, _ := m.lruCache.ContainsOrAdd(digestString(rmsg.Raw.Data["post"].(string)), true); ok {
+		m.log.Debugf("message %#v in cache, not processing again", rmsg.Raw.Data["post"].(string))
+		rmsg.Text = ""
+		return
+	}
 	data := model.PostFromJson(strings.NewReader(rmsg.Raw.Data["post"].(string)))
 	// we don't have the user, refresh the userlist
 	if m.GetUser(data.UserId) == nil {
@@ -329,37 +353,37 @@ func (m *MMClient) parseActionPost(rmsg *Message) {
 	}
 	rmsg.Text = data.Message
 	rmsg.Post = data
-	return
 }
 
 func (m *MMClient) UpdateUsers() error {
-	mmusers, err := m.Client.GetProfiles(0, 50000, "")
-	if err != nil {
-		return errors.New(err.DetailedError)
+	mmusers, resp := m.Client.GetUsers(0, 50000, "")
+	if resp.Error != nil {
+		return errors.New(resp.Error.DetailedError)
 	}
 	m.Lock()
-	m.Users = mmusers.Data.(map[string]*model.User)
+	for _, user := range mmusers {
+		m.Users[user.Id] = user
+	}
 	m.Unlock()
 	return nil
 }
 
 func (m *MMClient) UpdateChannels() error {
-	mmchannels, err := m.Client.GetChannels("")
-	if err != nil {
-		return errors.New(err.DetailedError)
-	}
-	var mmchannels2 *model.Result
-	if m.mmVersion() >= 3.08 {
-		mmchannels2, err = m.Client.GetMoreChannelsPage(0, 5000)
-	} else {
-		mmchannels2, err = m.Client.GetMoreChannels("")
-	}
-	if err != nil {
-		return errors.New(err.DetailedError)
+	mmchannels, resp := m.Client.GetChannelsForTeamForUser(m.Team.Id, m.User.Id, "")
+	if resp.Error != nil {
+		return errors.New(resp.Error.DetailedError)
 	}
 	m.Lock()
-	m.Team.Channels = mmchannels.Data.(*model.ChannelList)
-	m.Team.MoreChannels = mmchannels2.Data.(*model.ChannelList)
+	m.Team.Channels = mmchannels
+	m.Unlock()
+
+	mmchannels, resp = m.Client.GetPublicChannelsForTeam(m.Team.Id, 0, 5000, "")
+	if resp.Error != nil {
+		return errors.New(resp.Error.DetailedError)
+	}
+
+	m.Lock()
+	m.Team.MoreChannels = mmchannels
 	m.Unlock()
 	return nil
 }
@@ -372,14 +396,14 @@ func (m *MMClient) GetChannelName(channelId string) string {
 			continue
 		}
 		if t.Channels != nil {
-			for _, channel := range *t.Channels {
+			for _, channel := range t.Channels {
 				if channel.Id == channelId {
 					return channel.Name
 				}
 			}
 		}
 		if t.MoreChannels != nil {
-			for _, channel := range *t.MoreChannels {
+			for _, channel := range t.MoreChannels {
 				if channel.Id == channelId {
 					return channel.Name
 				}
@@ -397,7 +421,7 @@ func (m *MMClient) GetChannelId(name string, teamId string) string {
 	}
 	for _, t := range m.OtherTeams {
 		if t.Id == teamId {
-			for _, channel := range append(*t.Channels, *t.MoreChannels...) {
+			for _, channel := range append(t.Channels, t.MoreChannels...) {
 				if channel.Name == name {
 					return channel.Id
 				}
@@ -411,7 +435,7 @@ func (m *MMClient) GetChannelTeamId(id string) string {
 	m.RLock()
 	defer m.RUnlock()
 	for _, t := range append(m.OtherTeams, m.Team) {
-		for _, channel := range append(*t.Channels, *t.MoreChannels...) {
+		for _, channel := range append(t.Channels, t.MoreChannels...) {
 			if channel.Id == id {
 				return channel.TeamId
 			}
@@ -424,7 +448,7 @@ func (m *MMClient) GetChannelHeader(channelId string) string {
 	m.RLock()
 	defer m.RUnlock()
 	for _, t := range m.OtherTeams {
-		for _, channel := range append(*t.Channels, *t.MoreChannels...) {
+		for _, channel := range append(t.Channels, t.MoreChannels...) {
 			if channel.Id == channelId {
 				return channel.Header
 			}
@@ -434,55 +458,85 @@ func (m *MMClient) GetChannelHeader(channelId string) string {
 	return ""
 }
 
-func (m *MMClient) PostMessage(channelId string, text string) {
+func (m *MMClient) PostMessage(channelId string, text string) (string, error) {
 	post := &model.Post{ChannelId: channelId, Message: text}
-	m.Client.CreatePost(post)
+	res, resp := m.Client.CreatePost(post)
+	if resp.Error != nil {
+		return "", resp.Error
+	}
+	return res.Id, nil
+}
+
+func (m *MMClient) PostMessageWithFiles(channelId string, text string, fileIds []string) (string, error) {
+	post := &model.Post{ChannelId: channelId, Message: text, FileIds: fileIds}
+	res, resp := m.Client.CreatePost(post)
+	if resp.Error != nil {
+		return "", resp.Error
+	}
+	return res.Id, nil
+}
+
+func (m *MMClient) EditMessage(postId string, text string) (string, error) {
+	post := &model.Post{Message: text}
+	res, resp := m.Client.UpdatePost(postId, post)
+	if resp.Error != nil {
+		return "", resp.Error
+	}
+	return res.Id, nil
+}
+
+func (m *MMClient) DeleteMessage(postId string) error {
+	_, resp := m.Client.DeletePost(postId)
+	if resp.Error != nil {
+		return resp.Error
+	}
+	return nil
 }
 
 func (m *MMClient) JoinChannel(channelId string) error {
 	m.RLock()
 	defer m.RUnlock()
-	for _, c := range *m.Team.Channels {
+	for _, c := range m.Team.Channels {
 		if c.Id == channelId {
 			m.log.Debug("Not joining ", channelId, " already joined.")
 			return nil
 		}
 	}
 	m.log.Debug("Joining ", channelId)
-	_, err := m.Client.JoinChannel(channelId)
-	if err != nil {
-		return errors.New("failed to join")
+	_, resp := m.Client.AddChannelMember(channelId, m.User.Id)
+	if resp.Error != nil {
+		return resp.Error
 	}
 	return nil
 }
 
 func (m *MMClient) GetPostsSince(channelId string, time int64) *model.PostList {
-	res, err := m.Client.GetPostsSince(channelId, time)
-	if err != nil {
+	res, resp := m.Client.GetPostsSince(channelId, time)
+	if resp.Error != nil {
 		return nil
 	}
-	return res.Data.(*model.PostList)
+	return res
 }
 
 func (m *MMClient) SearchPosts(query string) *model.PostList {
-	res, err := m.Client.SearchPosts(query, false)
-	if err != nil {
+	res, resp := m.Client.SearchPosts(m.Team.Id, query, false)
+	if resp.Error != nil {
 		return nil
 	}
-	return res.Data.(*model.PostList)
+	return res
 }
 
 func (m *MMClient) GetPosts(channelId string, limit int) *model.PostList {
-	res, err := m.Client.GetPosts(channelId, 0, limit, "")
-	if err != nil {
+	res, resp := m.Client.GetPostsForChannel(channelId, 0, limit, "")
+	if resp.Error != nil {
 		return nil
 	}
-	return res.Data.(*model.PostList)
+	return res
 }
 
 func (m *MMClient) GetPublicLink(filename string) string {
-	res, err := m.Client.GetPublicLink(filename)
-	if err != nil {
+	res, resp := m.Client.GetFileLink(filename)
+	if resp.Error != nil {
 		return ""
 	}
 	return res
@@ -491,8 +545,27 @@ func (m *MMClient) GetPublicLink(filename string) string {
 func (m *MMClient) GetPublicLinks(filenames []string) []string {
 	var output []string
 	for _, f := range filenames {
-		res, err := m.Client.GetPublicLink(f)
-		if err != nil {
+		res, resp := m.Client.GetFileLink(f)
+		if resp.Error != nil {
+			continue
+		}
+		output = append(output, res)
+	}
+	return output
+}
+
+func (m *MMClient) GetFileLinks(filenames []string) []string {
+	uriScheme := "https://"
+	if m.NoTLS {
+		uriScheme = "http://"
+	}
+
+	var output []string
+	for _, f := range filenames {
+		res, resp := m.Client.GetFileLink(f)
+		if resp.Error != nil {
+			// public links is probably disabled, create the link ourselves
+			output = append(output, uriScheme+m.Credentials.Server+model.API_URL_SUFFIX_V3+"/files/"+f+"/get")
 			continue
 		}
 		output = append(output, res)
@@ -501,42 +574,43 @@ func (m *MMClient) GetPublicLinks(filenames []string) []string {
 }
 
 func (m *MMClient) UpdateChannelHeader(channelId string, header string) {
-	data := make(map[string]string)
-	data["channel_id"] = channelId
-	data["channel_header"] = header
+	channel := &model.Channel{Id: channelId, Header: header}
 	m.log.Debugf("updating channelheader %#v, %#v", channelId, header)
-	_, err := m.Client.UpdateChannelHeader(data)
-	if err != nil {
-		log.Error(err)
+	_, resp := m.Client.UpdateChannel(channel)
+	if resp.Error != nil {
+		log.Error(resp.Error)
 	}
 }
 
 func (m *MMClient) UpdateLastViewed(channelId string) {
 	m.log.Debugf("posting lastview %#v", channelId)
-	if m.mmVersion() >= 3.08 {
-		view := model.ChannelView{ChannelId: channelId}
-		res, _ := m.Client.ViewChannel(view)
-		if res == false {
-			m.log.Errorf("ChannelView update for %s failed", channelId)
-		}
-		return
-	}
-	_, err := m.Client.UpdateLastViewedAt(channelId, true)
-	if err != nil {
-		m.log.Error(err)
+	view := &model.ChannelView{ChannelId: channelId}
+	res, _ := m.Client.ViewChannel(m.User.Id, view)
+	if !res {
+		m.log.Errorf("ChannelView update for %s failed", channelId)
 	}
 }
 
+func (m *MMClient) UpdateUserNick(nick string) error {
+	user := m.User
+	user.Nickname = nick
+	_, resp := m.Client.UpdateUser(user)
+	if resp.Error != nil {
+		return resp.Error
+	}
+	return nil
+}
+
 func (m *MMClient) UsernamesInChannel(channelId string) []string {
-	res, err := m.Client.GetProfilesInChannel(channelId, 0, 50000, "")
-	if err != nil {
-		m.log.Errorf("UsernamesInChannel(%s) failed: %s", channelId, err)
+	res, resp := m.Client.GetChannelMembers(channelId, 0, 50000, "")
+	if resp.Error != nil {
+		m.log.Errorf("UsernamesInChannel(%s) failed: %s", channelId, resp.Error)
 		return []string{}
 	}
-	members := res.Data.(map[string]*model.User)
+	allusers := m.GetUsers()
 	result := []string{}
-	for _, member := range members {
-		result = append(result, member.Nickname)
+	for _, member := range *res {
+		result = append(result, allusers[member.UserId].Nickname)
 	}
 	return result
 }
@@ -560,22 +634,15 @@ func (m *MMClient) createCookieJar(token string) *cookiejar.Jar {
 func (m *MMClient) SendDirectMessage(toUserId string, msg string) {
 	m.log.Debugf("SendDirectMessage to %s, msg %s", toUserId, msg)
 	// create DM channel (only happens on first message)
-	_, err := m.Client.CreateDirectChannel(toUserId)
-	if err != nil {
-		m.log.Debugf("SendDirectMessage to %#v failed: %s", toUserId, err)
+	_, resp := m.Client.CreateDirectChannel(m.User.Id, toUserId)
+	if resp.Error != nil {
+		m.log.Debugf("SendDirectMessage to %#v failed: %s", toUserId, resp.Error)
 		return
 	}
 	channelName := model.GetDMNameFromIds(toUserId, m.User.Id)
 
 	// update our channels
-	mmchannels, err := m.Client.GetChannels("")
-	if err != nil {
-		m.log.Debug("SendDirectMessage: Couldn't update channels")
-		return
-	}
-	m.Lock()
-	m.Team.Channels = mmchannels.Data.(*model.ChannelList)
-	m.Unlock()
+	m.UpdateChannels()
 
 	// build & send the message
 	msg = strings.Replace(msg, "\r", "", -1)
@@ -601,10 +668,10 @@ func (m *MMClient) GetChannels() []*model.Channel {
 	defer m.RUnlock()
 	var channels []*model.Channel
 	// our primary team channels first
-	channels = append(channels, *m.Team.Channels...)
+	channels = append(channels, m.Team.Channels...)
 	for _, t := range m.OtherTeams {
 		if t.Id != m.Team.Id {
-			channels = append(channels, *t.Channels...)
+			channels = append(channels, t.Channels...)
 		}
 	}
 	return channels
@@ -616,7 +683,7 @@ func (m *MMClient) GetMoreChannels() []*model.Channel {
 	defer m.RUnlock()
 	var channels []*model.Channel
 	for _, t := range m.OtherTeams {
-		channels = append(channels, *t.MoreChannels...)
+		channels = append(channels, t.MoreChannels...)
 	}
 	return channels
 }
@@ -627,9 +694,9 @@ func (m *MMClient) GetTeamFromChannel(channelId string) string {
 	defer m.RUnlock()
 	var channels []*model.Channel
 	for _, t := range m.OtherTeams {
-		channels = append(channels, *t.Channels...)
+		channels = append(channels, t.Channels...)
 		if t.MoreChannels != nil {
-			channels = append(channels, *t.MoreChannels...)
+			channels = append(channels, t.MoreChannels...)
 		}
 		for _, c := range channels {
 			if c.Id == channelId {
@@ -643,12 +710,11 @@ func (m *MMClient) GetTeamFromChannel(channelId string) string {
 func (m *MMClient) GetLastViewedAt(channelId string) int64 {
 	m.RLock()
 	defer m.RUnlock()
-	res, err := m.Client.GetChannel(channelId, "")
-	if err != nil {
+	res, resp := m.Client.GetChannelMember(channelId, m.User.Id, "")
+	if resp.Error != nil {
 		return model.GetMillis()
 	}
-	data := res.Data.(*model.ChannelData)
-	return data.Member.LastViewedAt
+	return res.LastViewedAt
 }
 
 func (m *MMClient) GetUsers() map[string]*model.User {
@@ -664,14 +730,13 @@ func (m *MMClient) GetUsers() map[string]*model.User {
 func (m *MMClient) GetUser(userId string) *model.User {
 	m.Lock()
 	defer m.Unlock()
-	u, ok := m.Users[userId]
+	_, ok := m.Users[userId]
 	if !ok {
-		res, err := m.Client.GetProfilesByIds([]string{userId})
-		if err != nil {
+		res, resp := m.Client.GetUser(userId, "")
+		if resp.Error != nil {
 			return nil
 		}
-		u = res.Data.(map[string]*model.User)[userId]
-		m.Users[userId] = u
+		m.Users[userId] = res
 	}
 	return m.Users[userId]
 }
@@ -685,36 +750,36 @@ func (m *MMClient) GetUserName(userId string) string {
 }
 
 func (m *MMClient) GetStatus(userId string) string {
-	res, err := m.Client.GetStatusesByIds([]string{userId})
-	if err != nil {
+	res, resp := m.Client.GetUserStatus(userId, "")
+	if resp.Error != nil {
 		return ""
 	}
-	status := res.Data.(map[string]string)
-	if status[userId] == model.STATUS_AWAY {
+	if res.Status == model.STATUS_AWAY {
 		return "away"
 	}
-	if status[userId] == model.STATUS_ONLINE {
+	if res.Status == model.STATUS_ONLINE {
 		return "online"
 	}
 	return "offline"
 }
 
 func (m *MMClient) GetStatuses() map[string]string {
-	var ok bool
+	var ids []string
 	statuses := make(map[string]string)
-	res, err := m.Client.GetStatuses()
-	if err != nil {
+	for id := range m.Users {
+		ids = append(ids, id)
+	}
+	res, resp := m.Client.GetUsersStatusesByIds(ids)
+	if resp.Error != nil {
 		return statuses
 	}
-	if statuses, ok = res.Data.(map[string]string); ok {
-		for userId, status := range statuses {
-			statuses[userId] = "offline"
-			if status == model.STATUS_AWAY {
-				statuses[userId] = "away"
-			}
-			if status == model.STATUS_ONLINE {
-				statuses[userId] = "online"
-			}
+	for _, status := range res {
+		statuses[status.UserId] = "offline"
+		if status.Status == model.STATUS_AWAY {
+			statuses[status.UserId] = "away"
+		}
+		if status.Status == model.STATUS_ONLINE {
+			statuses[status.UserId] = "online"
 		}
 	}
 	return statuses
@@ -724,6 +789,14 @@ func (m *MMClient) GetTeamId() string {
 	return m.Team.Id
 }
 
+func (m *MMClient) UploadFile(data []byte, channelId string, filename string) (string, error) {
+	f, resp := m.Client.UploadFile(data, channelId, filename)
+	if resp.Error != nil {
+		return "", resp.Error
+	}
+	return f.FileInfos[0].Id, nil
+}
+
 func (m *MMClient) StatusLoop() {
 	retries := 0
 	backoff := time.Second * 60
@@ -744,9 +817,14 @@ func (m *MMClient) StatusLoop() {
 				backoff = time.Second * 60
 			case <-time.After(time.Second * 5):
 				if retries > 3 {
+					m.log.Debug("StatusLoop() timeout")
 					m.Logout()
 					m.WsQuit = false
-					m.Login()
+					err := m.Login()
+					if err != nil {
+						log.Errorf("Login failed: %#v", err)
+						break
+					}
 					if m.OnWsConnect != nil {
 						m.OnWsConnect()
 					}
@@ -765,40 +843,39 @@ func (m *MMClient) StatusLoop() {
 func (m *MMClient) initUser() error {
 	m.Lock()
 	defer m.Unlock()
-	initLoad, err := m.Client.GetInitialLoad()
-	if err != nil {
-		return err
-	}
-	initData := initLoad.Data.(*model.InitialLoad)
-	m.User = initData.User
 	// we only load all team data on initial login.
 	// all other updates are for channels from our (primary) team only.
 	//m.log.Debug("initUser(): loading all team data")
-	for _, v := range initData.Teams {
-		m.Client.SetTeamId(v.Id)
-		mmusers, err := m.Client.GetProfiles(0, 50000, "")
-		if err != nil {
-			return errors.New(err.DetailedError)
+	teams, resp := m.Client.GetTeamsForUser(m.User.Id, "")
+	if resp.Error != nil {
+		return resp.Error
+	}
+	for _, team := range teams {
+		mmusers, resp := m.Client.GetUsersInTeam(team.Id, 0, 50000, "")
+		if resp.Error != nil {
+			return errors.New(resp.Error.DetailedError)
 		}
-		t := &Team{Team: v, Users: mmusers.Data.(map[string]*model.User), Id: v.Id}
-		mmchannels, err := m.Client.GetChannels("")
-		if err != nil {
-			return errors.New(err.DetailedError)
+		usermap := make(map[string]*model.User)
+		for _, user := range mmusers {
+			usermap[user.Id] = user
 		}
-		t.Channels = mmchannels.Data.(*model.ChannelList)
-		if m.mmVersion() >= 3.08 {
-			mmchannels, err = m.Client.GetMoreChannelsPage(0, 5000)
-		} else {
-			mmchannels, err = m.Client.GetMoreChannels("")
+
+		t := &Team{Team: team, Users: usermap, Id: team.Id}
+
+		mmchannels, resp := m.Client.GetChannelsForTeamForUser(team.Id, m.User.Id, "")
+		if resp.Error != nil {
+			return resp.Error
 		}
-		if err != nil {
-			return errors.New(err.DetailedError)
+		t.Channels = mmchannels
+		mmchannels, resp = m.Client.GetPublicChannelsForTeam(team.Id, 0, 5000, "")
+		if resp.Error != nil {
+			return resp.Error
 		}
-		t.MoreChannels = mmchannels.Data.(*model.ChannelList)
+		t.MoreChannels = mmchannels
 		m.OtherTeams = append(m.OtherTeams, t)
-		if v.Name == m.Credentials.Team {
+		if team.Name == m.Credentials.Team {
 			m.Team = t
-			m.log.Debugf("initUser(): found our team %s (id: %s)", v.Name, v.Id)
+			m.log.Debugf("initUser(): found our team %s (id: %s)", team.Name, team.Id)
 		}
 		// add all users
 		for k, v := range t.Users {
@@ -819,22 +896,16 @@ func (m *MMClient) sendWSRequest(action string, data map[string]interface{}) err
 	return nil
 }
 
-func (m *MMClient) mmVersion() float64 {
-	v, _ := strconv.ParseFloat(string(m.ServerVersion[0:2])+"0"+string(m.ServerVersion[2]), 64)
-	if string(m.ServerVersion[4]) == "." {
-		v, _ = strconv.ParseFloat(m.ServerVersion[0:4], 64)
-	}
-	return v
-}
-
 func supportedVersion(version string) bool {
-	if strings.HasPrefix(version, "3.5.0") ||
-		strings.HasPrefix(version, "3.6.0") ||
-		strings.HasPrefix(version, "3.7.0") ||
-		strings.HasPrefix(version, "3.8.0") ||
+	if strings.HasPrefix(version, "3.8.0") ||
 		strings.HasPrefix(version, "3.9.0") ||
-		strings.HasPrefix(version, "3.10.0") {
+		strings.HasPrefix(version, "3.10.0") ||
+		strings.HasPrefix(version, "4.") {
 		return true
 	}
 	return false
 }
+
+func digestString(s string) string {
+	return fmt.Sprintf("%x", md5.Sum([]byte(s)))
+}

matterhook/matterhook.go

@@ -17,13 +17,14 @@ import (
 
 // OMessage for mattermost incoming webhook. (send to mattermost)
 type OMessage struct {
-	Channel     string      `json:"channel,omitempty"`
-	IconURL     string      `json:"icon_url,omitempty"`
-	IconEmoji   string      `json:"icon_emoji,omitempty"`
-	UserName    string      `json:"username,omitempty"`
-	Text        string      `json:"text"`
-	Attachments interface{} `json:"attachments,omitempty"`
-	Type        string      `json:"type,omitempty"`
+	Channel     string                 `json:"channel,omitempty"`
+	IconURL     string                 `json:"icon_url,omitempty"`
+	IconEmoji   string                 `json:"icon_emoji,omitempty"`
+	UserName    string                 `json:"username,omitempty"`
+	Text        string                 `json:"text"`
+	Attachments interface{}            `json:"attachments,omitempty"`
+	Type        string                 `json:"type,omitempty"`
+	Props       map[string]interface{} `json:"props"`
 }
 
 // IMessage for mattermost outgoing webhook. (received from mattermost)
@@ -43,6 +44,7 @@ type IMessage struct {
 	ServiceId   string `schema:"service_id"`
 	Text        string `schema:"text"`
 	TriggerWord string `schema:"trigger_word"`
+	FileIDs     string `schema:"file_ids"`
 }
 
 // Client for Mattermost.
@@ -134,12 +136,11 @@ func (c *Client) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 // Receive returns an incoming message from mattermost outgoing webhooks URL.
 func (c *Client) Receive() IMessage {
-	for {
-		select {
-		case msg := <-c.In:
-			return msg
-		}
+	var msg IMessage
+	for msg := range c.In {
+		return msg
 	}
+	return msg
 }
 
 // Send sends a msg to mattermost incoming webhooks URL.

migration.md

@@ -1,50 +0,0 @@
-# Breaking changes from 0.4 to 0.5 for matterbridge (webhooks version)
-## IRC section
-### Server
-Port removed, added to server
-```
-server="irc.freenode.net"
-port=6667
-```
-changed to
-```
-server="irc.freenode.net:6667"
-```
-### Channel
-Removed see Channels section below
-
-### UseSlackCircumfix=true
-Removed, can be done by using ```RemoteNickFormat="<{NICK}> "```
-
-## Mattermost section
-### BindAddress
-Port removed, added to BindAddress
-
-```
-BindAddress="0.0.0.0"
-port=9999
-```
-
-changed to
-
-```
-BindAddress="0.0.0.0:9999"
-```
-
-### Token
-Removed
-
-## Channels section
-```
-[Token "outgoingwebhooktoken1"] 
-IRCChannel="#off-topic"
-MMChannel="off-topic"
-```
-
-changed to
-
-```
-[Channel "channelnameofchoice"] 
-IRC="#off-topic"
-Mattermost="off-topic"
-```

vendor/github.com/42wim/go-gitter/gitter.go

@@ -205,17 +205,43 @@ func (gitter *Gitter) GetMessage(roomID, messageID string) (*Message, error) {
 }
 
 // SendMessage sends a message to a room
-func (gitter *Gitter) SendMessage(roomID, text string) error {
+func (gitter *Gitter) SendMessage(roomID, text string) (*Message, error) {
 
 	message := Message{Text: text}
 	body, _ := json.Marshal(message)
-	_, err := gitter.post(gitter.config.apiBaseURL+"rooms/"+roomID+"/chatMessages", body)
+	response, err := gitter.post(gitter.config.apiBaseURL+"rooms/"+roomID+"/chatMessages", body)
 	if err != nil {
 		gitter.log(err)
-		return err
+		return nil, err
 	}
 
-	return nil
+	err = json.Unmarshal(response, &message)
+	if err != nil {
+		gitter.log(err)
+		return nil, err
+	}
+
+	return &message, nil
+}
+
+// UpdateMessage updates a message in a room
+func (gitter *Gitter) UpdateMessage(roomID, msgID, text string) (*Message, error) {
+
+	message := Message{Text: text}
+	body, _ := json.Marshal(message)
+	response, err := gitter.put(gitter.config.apiBaseURL+"rooms/"+roomID+"/chatMessages/"+msgID, body)
+	if err != nil {
+		gitter.log(err)
+		return nil, err
+	}
+
+	err = json.Unmarshal(response, &message)
+	if err != nil {
+		gitter.log(err)
+		return nil, err
+	}
+
+	return &message, nil
 }
 
 // JoinRoom joins a room
@@ -265,7 +291,7 @@ func (gitter *Gitter) SearchRooms(room string) ([]Room, error) {
 		Results []Room `json:"results"`
 	}
 
-	response, err := gitter.get(gitter.config.apiBaseURL + "rooms?q=" + room )
+	response, err := gitter.get(gitter.config.apiBaseURL + "rooms?q=" + room)
 
 	if err != nil {
 		gitter.log(err)
@@ -414,6 +440,39 @@ func (gitter *Gitter) post(url string, body []byte) ([]byte, error) {
 	return result, nil
 }
 
+func (gitter *Gitter) put(url string, body []byte) ([]byte, error) {
+	r, err := http.NewRequest("PUT", url, bytes.NewBuffer(body))
+	if err != nil {
+		gitter.log(err)
+		return nil, err
+	}
+
+	r.Header.Set("Content-Type", "application/json")
+	r.Header.Set("Accept", "application/json")
+	r.Header.Set("Authorization", "Bearer "+gitter.config.token)
+
+	resp, err := gitter.config.client.Do(r)
+	if err != nil {
+		gitter.log(err)
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		err = APIError{What: fmt.Sprintf("Status code: %v", resp.StatusCode)}
+		gitter.log(err)
+		return nil, err
+	}
+
+	result, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		gitter.log(err)
+		return nil, err
+	}
+
+	return result, nil
+}
+
 func (gitter *Gitter) delete(url string) ([]byte, error) {
 	r, err := http.NewRequest("delete", url, nil)
 	if err != nil {

vendor/github.com/42wim/go-ircevent/irc.go

@@ -87,6 +87,17 @@ func (irc *Connection) readLoop() {
 	}
 }
 
+// Unescape tag values as defined in the IRCv3.2 message tags spec
+// http://ircv3.net/specs/core/message-tags-3.2.html
+func unescapeTagValue(value string) string {
+	value = strings.Replace(value, "\\:", ";", -1)
+	value = strings.Replace(value, "\\s", " ", -1)
+	value = strings.Replace(value, "\\\\", "\\", -1)
+	value = strings.Replace(value, "\\r", "\r", -1)
+	value = strings.Replace(value, "\\n", "\n", -1)
+	return value
+}
+
 //Parse raw irc messages
 func parseToEvent(msg string) (*Event, error) {
 	msg = strings.TrimSuffix(msg, "\n") //Remove \r\n
@@ -95,6 +106,26 @@ func parseToEvent(msg string) (*Event, error) {
 	if len(msg) < 5 {
 		return nil, errors.New("Malformed msg from server")
 	}
+
+	if msg[0] == '@' {
+		// IRCv3 Message Tags
+		if i := strings.Index(msg, " "); i > -1 {
+			event.Tags = make(map[string]string)
+			tags := strings.Split(msg[1:i], ";")
+			for _, data := range tags {
+				parts := strings.SplitN(data, "=", 2)
+				if len(parts) == 1 {
+					event.Tags[parts[0]] = ""
+				} else {
+					event.Tags[parts[0]] = unescapeTagValue(parts[1])
+				}
+			}
+			msg = msg[i+1 : len(msg)]
+		} else {
+			return nil, errors.New("Malformed msg from server")
+		}
+	}
+
 	if msg[0] == ':' {
 		if i := strings.Index(msg, " "); i > -1 {
 			event.Source = msg[1:i]
@@ -196,12 +227,17 @@ func (irc *Connection) isQuitting() bool {
 // Main loop to control the connection.
 func (irc *Connection) Loop() {
 	errChan := irc.ErrorChan()
+	connTime := time.Now()
 	for !irc.isQuitting() {
 		err := <-errChan
 		close(irc.end)
 		irc.Wait()
 		for !irc.isQuitting() {
 			irc.Log.Printf("Error, disconnected: %s\n", err)
+			if time.Now().Sub(connTime) < time.Second*5 {
+				irc.Log.Println("Rreconnecting too fast, sleeping 60 seconds")
+				time.Sleep(60 * time.Second)
+			}
 			if err = irc.Reconnect(); err != nil {
 				irc.Log.Printf("Error while reconnecting: %s\n", err)
 				time.Sleep(60 * time.Second)
@@ -210,6 +246,7 @@ func (irc *Connection) Loop() {
 				break
 			}
 		}
+		connTime = time.Now()
 	}
 }
 
@@ -430,26 +467,84 @@ func (irc *Connection) Connect(server string) error {
 		irc.pwrite <- fmt.Sprintf("PASS %s\r\n", irc.Password)
 	}
 
-	resChan := make(chan *SASLResult)
+	err = irc.negotiateCaps()
+	if err != nil {
+		return err
+	}
+
+	irc.pwrite <- fmt.Sprintf("NICK %s\r\n", irc.nick)
+	irc.pwrite <- fmt.Sprintf("USER %s 0.0.0.0 0.0.0.0 :%s\r\n", irc.user, irc.user)
+	return nil
+}
+
+// Negotiate IRCv3 capabilities
+func (irc *Connection) negotiateCaps() error {
+	saslResChan := make(chan *SASLResult)
+	if irc.UseSASL {
+		irc.RequestCaps = append(irc.RequestCaps, "sasl")
+		irc.setupSASLCallbacks(saslResChan)
+	}
+
+	if len(irc.RequestCaps) == 0 {
+		return nil
+	}
+
+	cap_chan := make(chan bool, len(irc.RequestCaps))
+	irc.AddCallback("CAP", func(e *Event) {
+		if len(e.Arguments) != 3 {
+			return
+		}
+		command := e.Arguments[1]
+
+		if command == "LS" {
+			missing_caps := len(irc.RequestCaps)
+			for _, cap_name := range strings.Split(e.Arguments[2], " ") {
+				for _, req_cap := range irc.RequestCaps {
+					if cap_name == req_cap {
+						irc.pwrite <- fmt.Sprintf("CAP REQ :%s\r\n", cap_name)
+						missing_caps--
+					}
+				}
+			}
+
+			for i := 0; i < missing_caps; i++ {
+				cap_chan <- true
+			}
+		} else if command == "ACK" || command == "NAK" {
+			for _, cap_name := range strings.Split(strings.TrimSpace(e.Arguments[2]), " ") {
+				if cap_name == "" {
+					continue
+				}
+
+				if command == "ACK" {
+					irc.AcknowledgedCaps = append(irc.AcknowledgedCaps, cap_name)
+				}
+				cap_chan <- true
+			}
+		}
+	})
+
+	irc.pwrite <- "CAP LS\r\n"
+
 	if irc.UseSASL {
-		irc.setupSASLCallbacks(resChan)
-		irc.pwrite <- fmt.Sprintf("CAP LS\r\n")
-		// request SASL
-		irc.pwrite <- fmt.Sprintf("CAP REQ :sasl\r\n")
-		// if sasl request doesn't complete in 15 seconds, close chan and timeout
 		select {
-		case res := <-resChan:
+		case res := <-saslResChan:
 			if res.Failed {
-				close(resChan)
+				close(saslResChan)
 				return res.Err
 			}
 		case <-time.After(time.Second * 15):
-			close(resChan)
+			close(saslResChan)
 			return errors.New("SASL setup timed out. This shouldn't happen.")
 		}
 	}
-	irc.pwrite <- fmt.Sprintf("NICK %s\r\n", irc.nick)
-	irc.pwrite <- fmt.Sprintf("USER %s 0.0.0.0 0.0.0.0 :%s\r\n", irc.user, irc.user)
+
+	// Wait for all capabilities to be ACKed or NAKed before ending negotiation
+	for i := 0; i < len(irc.RequestCaps); i++ {
+		<-cap_chan
+	}
+	irc.pwrite <- fmt.Sprintf("CAP END\r\n")
+
 	return nil
 }
 

vendor/github.com/42wim/go-ircevent/irc_sasl.go

@@ -43,7 +43,6 @@ func (irc *Connection) setupSASLCallbacks(result chan<- *SASLResult) {
 		result <- &SASLResult{true, errors.New(e.Arguments[1])}
 	})
 	irc.AddCallback("903", func(e *Event) {
-		irc.SendRaw("CAP END")
 		result <- &SASLResult{false, nil}
 	})
 	irc.AddCallback("904", func(e *Event) {

vendor/github.com/42wim/go-ircevent/irc_struct.go

@@ -15,20 +15,22 @@ import (
 type Connection struct {
 	sync.Mutex
 	sync.WaitGroup
-	Debug        bool
-	Error        chan error
-	Password     string
-	UseTLS       bool
-	UseSASL      bool
-	SASLLogin    string
-	SASLPassword string
-	SASLMech     string
-	TLSConfig    *tls.Config
-	Version      string
-	Timeout      time.Duration
-	PingFreq     time.Duration
-	KeepAlive    time.Duration
-	Server       string
+	Debug            bool
+	Error            chan error
+	Password         string
+	UseTLS           bool
+	UseSASL          bool
+	RequestCaps      []string
+	AcknowledgedCaps []string
+	SASLLogin        string
+	SASLPassword     string
+	SASLMech         string
+	TLSConfig        *tls.Config
+	Version          string
+	Timeout          time.Duration
+	PingFreq         time.Duration
+	KeepAlive        time.Duration
+	Server           string
 
 	socket net.Conn
 	pwrite chan string
@@ -59,6 +61,7 @@ type Event struct {
 	Source     string //<host>
 	User       string //<usr>
 	Arguments  []string
+	Tags       map[string]string
 	Connection *Connection
 }
 

vendor/github.com/bwmarrin/discordgo/discord.go

@@ -13,10 +13,18 @@
 // Package discordgo provides Discord binding for Go
 package discordgo
 
-import "fmt"
+import (
+	"errors"
+	"fmt"
+	"net/http"
+	"time"
+)
 
-// VERSION of Discordgo, follows Symantic Versioning. (http://semver.org/)
-const VERSION = "0.15.0"
+// VERSION of DiscordGo, follows Semantic Versioning. (http://semver.org/)
+const VERSION = "0.17.0"
+
+// ErrMFA will be risen by New when the user has 2FA.
+var ErrMFA = errors.New("account has 2FA enabled")
 
 // New creates a new Discord session and will automate some startup
 // tasks if given enough information to do so.  Currently you can pass zero
@@ -31,6 +39,12 @@ const VERSION = "0.15.0"
 //     With an email, password and auth token - Discord will verify the auth
 //         token, if it is invalid it will sign in with the provided
 //         credentials. This is the Discord recommended way to sign in.
+//
+// NOTE: While email/pass authentication is supported by DiscordGo it is
+// HIGHLY DISCOURAGED by Discord. Please only use email/pass to obtain a token
+// and then use that authentication token for all future connections.
+// Also, doing any form of automation with a user (non Bot) account may result
+// in that account being permanently banned from Discord.
 func New(args ...interface{}) (s *Session, err error) {
 
 	// Create an empty Session interface.
@@ -43,6 +57,9 @@ func New(args ...interface{}) (s *Session, err error) {
 		ShardID:                0,
 		ShardCount:             1,
 		MaxRestRetries:         3,
+		Client:                 &http.Client{Timeout: (20 * time.Second)},
+		sequence:               new(int64),
+		LastHeartbeatAck:       time.Now().UTC(),
 	}
 
 	// If no arguments are passed return the empty Session interface.
@@ -60,7 +77,7 @@ func New(args ...interface{}) (s *Session, err error) {
 
 		case []string:
 			if len(v) > 3 {
-				err = fmt.Errorf("Too many string parameters provided.")
+				err = fmt.Errorf("too many string parameters provided")
 				return
 			}
 
@@ -91,7 +108,7 @@ func New(args ...interface{}) (s *Session, err error) {
 			} else if s.Token == "" {
 				s.Token = v
 			} else {
-				err = fmt.Errorf("Too many string parameters provided.")
+				err = fmt.Errorf("too many string parameters provided")
 				return
 			}
 
@@ -99,7 +116,7 @@ func New(args ...interface{}) (s *Session, err error) {
 			// TODO: Parse configuration struct
 
 		default:
-			err = fmt.Errorf("Unsupported parameter type provided.")
+			err = fmt.Errorf("unsupported parameter type provided")
 			return
 		}
 	}
@@ -113,7 +130,11 @@ func New(args ...interface{}) (s *Session, err error) {
 	} else {
 		err = s.Login(auth, pass)
 		if err != nil || s.Token == "" {
-			err = fmt.Errorf("Unable to fetch discord authentication token. %v", err)
+			if s.MFA {
+				err = ErrMFA
+			} else {
+				err = fmt.Errorf("Unable to fetch discord authentication token. %v", err)
+			}
 			return
 		}
 	}

vendor/github.com/bwmarrin/discordgo/endpoints.go

@@ -11,6 +11,9 @@
 
 package discordgo
 
+// APIVersion is the Discord API version used for the REST and Websocket API.
+var APIVersion = "6"
+
 // Known Discord API Endpoints.
 var (
 	EndpointStatus     = "https://status.discordapp.com/api/v2/"
@@ -18,13 +21,21 @@ var (
 	EndpointSmActive   = EndpointSm + "active.json"
 	EndpointSmUpcoming = EndpointSm + "upcoming.json"
 
-	EndpointDiscord  = "https://discordapp.com/"
-	EndpointAPI      = EndpointDiscord + "api/"
-	EndpointGuilds   = EndpointAPI + "guilds/"
-	EndpointChannels = EndpointAPI + "channels/"
-	EndpointUsers    = EndpointAPI + "users/"
-	EndpointGateway  = EndpointAPI + "gateway"
-	EndpointWebhooks = EndpointAPI + "webhooks/"
+	EndpointDiscord    = "https://discordapp.com/"
+	EndpointAPI        = EndpointDiscord + "api/v" + APIVersion + "/"
+	EndpointGuilds     = EndpointAPI + "guilds/"
+	EndpointChannels   = EndpointAPI + "channels/"
+	EndpointUsers      = EndpointAPI + "users/"
+	EndpointGateway    = EndpointAPI + "gateway"
+	EndpointGatewayBot = EndpointGateway + "/bot"
+	EndpointWebhooks   = EndpointAPI + "webhooks/"
+
+	EndpointCDN             = "https://cdn.discordapp.com/"
+	EndpointCDNAttachments  = EndpointCDN + "attachments/"
+	EndpointCDNAvatars      = EndpointCDN + "avatars/"
+	EndpointCDNIcons        = EndpointCDN + "icons/"
+	EndpointCDNSplashes     = EndpointCDN + "splashes/"
+	EndpointCDNChannelIcons = EndpointCDN + "channel-icons/"
 
 	EndpointAuth           = EndpointAPI + "auth/"
 	EndpointLogin          = EndpointAuth + "login"
@@ -47,15 +58,17 @@ var (
 	EndpointReport       = EndpointAPI + "report"
 	EndpointIntegrations = EndpointAPI + "integrations"
 
-	EndpointUser              = func(uID string) string { return EndpointUsers + uID }
-	EndpointUserAvatar        = func(uID, aID string) string { return EndpointUsers + uID + "/avatars/" + aID + ".jpg" }
-	EndpointUserSettings      = func(uID string) string { return EndpointUsers + uID + "/settings" }
-	EndpointUserGuilds        = func(uID string) string { return EndpointUsers + uID + "/guilds" }
-	EndpointUserGuild         = func(uID, gID string) string { return EndpointUsers + uID + "/guilds/" + gID }
-	EndpointUserGuildSettings = func(uID, gID string) string { return EndpointUsers + uID + "/guilds/" + gID + "/settings" }
-	EndpointUserChannels      = func(uID string) string { return EndpointUsers + uID + "/channels" }
-	EndpointUserDevices       = func(uID string) string { return EndpointUsers + uID + "/devices" }
-	EndpointUserConnections   = func(uID string) string { return EndpointUsers + uID + "/connections" }
+	EndpointUser               = func(uID string) string { return EndpointUsers + uID }
+	EndpointUserAvatar         = func(uID, aID string) string { return EndpointCDNAvatars + uID + "/" + aID + ".png" }
+	EndpointUserAvatarAnimated = func(uID, aID string) string { return EndpointCDNAvatars + uID + "/" + aID + ".gif" }
+	EndpointUserSettings       = func(uID string) string { return EndpointUsers + uID + "/settings" }
+	EndpointUserGuilds         = func(uID string) string { return EndpointUsers + uID + "/guilds" }
+	EndpointUserGuild          = func(uID, gID string) string { return EndpointUsers + uID + "/guilds/" + gID }
+	EndpointUserGuildSettings  = func(uID, gID string) string { return EndpointUsers + uID + "/guilds/" + gID + "/settings" }
+	EndpointUserChannels       = func(uID string) string { return EndpointUsers + uID + "/channels" }
+	EndpointUserDevices        = func(uID string) string { return EndpointUsers + uID + "/devices" }
+	EndpointUserConnections    = func(uID string) string { return EndpointUsers + uID + "/connections" }
+	EndpointUserNotes          = func(uID string) string { return EndpointUsers + "@me/notes/" + uID }
 
 	EndpointGuild                = func(gID string) string { return EndpointGuilds + gID }
 	EndpointGuildInivtes         = func(gID string) string { return EndpointGuilds + gID + "/invites" }
@@ -73,8 +86,8 @@ var (
 	EndpointGuildInvites         = func(gID string) string { return EndpointGuilds + gID + "/invites" }
 	EndpointGuildEmbed           = func(gID string) string { return EndpointGuilds + gID + "/embed" }
 	EndpointGuildPrune           = func(gID string) string { return EndpointGuilds + gID + "/prune" }
-	EndpointGuildIcon            = func(gID, hash string) string { return EndpointGuilds + gID + "/icons/" + hash + ".jpg" }
-	EndpointGuildSplash          = func(gID, hash string) string { return EndpointGuilds + gID + "/splashes/" + hash + ".jpg" }
+	EndpointGuildIcon            = func(gID, hash string) string { return EndpointCDNIcons + gID + "/" + hash + ".png" }
+	EndpointGuildSplash          = func(gID, hash string) string { return EndpointCDNSplashes + gID + "/" + hash + ".png" }
 	EndpointGuildWebhooks        = func(gID string) string { return EndpointGuilds + gID + "/webhooks" }
 
 	EndpointChannel                   = func(cID string) string { return EndpointChannels + cID }
@@ -89,10 +102,15 @@ var (
 	EndpointChannelMessagesPins       = func(cID string) string { return EndpointChannel(cID) + "/pins" }
 	EndpointChannelMessagePin         = func(cID, mID string) string { return EndpointChannel(cID) + "/pins/" + mID }
 
+	EndpointGroupIcon = func(cID, hash string) string { return EndpointCDNChannelIcons + cID + "/" + hash + ".png" }
+
 	EndpointChannelWebhooks = func(cID string) string { return EndpointChannel(cID) + "/webhooks" }
 	EndpointWebhook         = func(wID string) string { return EndpointWebhooks + wID }
 	EndpointWebhookToken    = func(wID, token string) string { return EndpointWebhooks + wID + "/" + token }
 
+	EndpointMessageReactionsAll = func(cID, mID string) string {
+		return EndpointChannelMessage(cID, mID) + "/reactions"
+	}
 	EndpointMessageReactions = func(cID, mID, eID string) string {
 		return EndpointChannelMessage(cID, mID) + "/reactions/" + eID
 	}

vendor/github.com/bwmarrin/discordgo/event.go

@@ -1,7 +1,5 @@
 package discordgo
 
-import "fmt"
-
 // EventHandler is an interface for Discord events.
 type EventHandler interface {
 	// Type returns the type of event this handler belongs to.
@@ -45,12 +43,15 @@ var registeredInterfaceProviders = map[string]EventInterfaceProvider{}
 
 // registerInterfaceProvider registers a provider so that DiscordGo can
 // access it's New() method.
-func registerInterfaceProvider(eh EventInterfaceProvider) error {
+func registerInterfaceProvider(eh EventInterfaceProvider) {
 	if _, ok := registeredInterfaceProviders[eh.Type()]; ok {
-		return fmt.Errorf("event %s already registered", eh.Type())
+		return
+		// XXX:
+		// if we should error here, we need to do something with it.
+		// fmt.Errorf("event %s already registered", eh.Type())
 	}
 	registeredInterfaceProviders[eh.Type()] = eh
-	return nil
+	return
 }
 
 // eventHandlerInstance is a wrapper around an event handler, as functions
@@ -155,12 +156,20 @@ func (s *Session) removeEventHandlerInstance(t string, ehi *eventHandlerInstance
 // Handles calling permanent and once handlers for an event type.
 func (s *Session) handle(t string, i interface{}) {
 	for _, eh := range s.handlers[t] {
-		go eh.eventHandler.Handle(s, i)
+		if s.SyncEvents {
+			eh.eventHandler.Handle(s, i)
+		} else {
+			go eh.eventHandler.Handle(s, i)
+		}
 	}
 
 	if len(s.onceHandlers[t]) > 0 {
 		for _, eh := range s.onceHandlers[t] {
-			go eh.eventHandler.Handle(s, i)
+			if s.SyncEvents {
+				eh.eventHandler.Handle(s, i)
+			} else {
+				go eh.eventHandler.Handle(s, i)
+			}
 		}
 		s.onceHandlers[t] = nil
 	}
@@ -210,14 +219,15 @@ func (s *Session) onInterface(i interface{}) {
 		setGuildIds(t.Guild)
 	case *GuildUpdate:
 		setGuildIds(t.Guild)
-	case *Resumed:
-		s.onResumed(t)
 	case *VoiceServerUpdate:
 		go s.onVoiceServerUpdate(t)
 	case *VoiceStateUpdate:
 		go s.onVoiceStateUpdate(t)
 	}
-	s.State.onInterface(s, i)
+	err := s.State.OnInterface(s, i)
+	if err != nil {
+		s.log(LogDebug, "error dispatching internal event, %s", err)
+	}
 }
 
 // onReady handles the ready event.
@@ -225,14 +235,4 @@ func (s *Session) onReady(r *Ready) {
 
 	// Store the SessionID within the Session struct.
 	s.sessionID = r.SessionID
-
-	// Start the heartbeat to keep the connection alive.
-	go s.heartbeat(s.wsConn, s.listening, r.HeartbeatInterval)
-}
-
-// onResumed handles the resumed event.
-func (s *Session) onResumed(r *Resumed) {
-
-	// Start the heartbeat to keep the connection alive.
-	go s.heartbeat(s.wsConn, s.listening, r.HeartbeatInterval)
 }

vendor/github.com/bwmarrin/discordgo/eventhandlers.go

@@ -7,46 +7,49 @@ package discordgo
 // Event type values are used to match the events returned by Discord.
 // EventTypes surrounded by __ are synthetic and are internal to DiscordGo.
 const (
-	channelCreateEventType           = "CHANNEL_CREATE"
-	channelDeleteEventType           = "CHANNEL_DELETE"
-	channelPinsUpdateEventType       = "CHANNEL_PINS_UPDATE"
-	channelUpdateEventType           = "CHANNEL_UPDATE"
-	connectEventType                 = "__CONNECT__"
-	disconnectEventType              = "__DISCONNECT__"
-	eventEventType                   = "__EVENT__"
-	guildBanAddEventType             = "GUILD_BAN_ADD"
-	guildBanRemoveEventType          = "GUILD_BAN_REMOVE"
-	guildCreateEventType             = "GUILD_CREATE"
-	guildDeleteEventType             = "GUILD_DELETE"
-	guildEmojisUpdateEventType       = "GUILD_EMOJIS_UPDATE"
-	guildIntegrationsUpdateEventType = "GUILD_INTEGRATIONS_UPDATE"
-	guildMemberAddEventType          = "GUILD_MEMBER_ADD"
-	guildMemberRemoveEventType       = "GUILD_MEMBER_REMOVE"
-	guildMemberUpdateEventType       = "GUILD_MEMBER_UPDATE"
-	guildMembersChunkEventType       = "GUILD_MEMBERS_CHUNK"
-	guildRoleCreateEventType         = "GUILD_ROLE_CREATE"
-	guildRoleDeleteEventType         = "GUILD_ROLE_DELETE"
-	guildRoleUpdateEventType         = "GUILD_ROLE_UPDATE"
-	guildUpdateEventType             = "GUILD_UPDATE"
-	messageAckEventType              = "MESSAGE_ACK"
-	messageCreateEventType           = "MESSAGE_CREATE"
-	messageDeleteEventType           = "MESSAGE_DELETE"
-	messageReactionAddEventType      = "MESSAGE_REACTION_ADD"
-	messageReactionRemoveEventType   = "MESSAGE_REACTION_REMOVE"
-	messageUpdateEventType           = "MESSAGE_UPDATE"
-	presenceUpdateEventType          = "PRESENCE_UPDATE"
-	presencesReplaceEventType        = "PRESENCES_REPLACE"
-	rateLimitEventType               = "__RATE_LIMIT__"
-	readyEventType                   = "READY"
-	relationshipAddEventType         = "RELATIONSHIP_ADD"
-	relationshipRemoveEventType      = "RELATIONSHIP_REMOVE"
-	resumedEventType                 = "RESUMED"
-	typingStartEventType             = "TYPING_START"
-	userGuildSettingsUpdateEventType = "USER_GUILD_SETTINGS_UPDATE"
-	userSettingsUpdateEventType      = "USER_SETTINGS_UPDATE"
-	userUpdateEventType              = "USER_UPDATE"
-	voiceServerUpdateEventType       = "VOICE_SERVER_UPDATE"
-	voiceStateUpdateEventType        = "VOICE_STATE_UPDATE"
+	channelCreateEventType            = "CHANNEL_CREATE"
+	channelDeleteEventType            = "CHANNEL_DELETE"
+	channelPinsUpdateEventType        = "CHANNEL_PINS_UPDATE"
+	channelUpdateEventType            = "CHANNEL_UPDATE"
+	connectEventType                  = "__CONNECT__"
+	disconnectEventType               = "__DISCONNECT__"
+	eventEventType                    = "__EVENT__"
+	guildBanAddEventType              = "GUILD_BAN_ADD"
+	guildBanRemoveEventType           = "GUILD_BAN_REMOVE"
+	guildCreateEventType              = "GUILD_CREATE"
+	guildDeleteEventType              = "GUILD_DELETE"
+	guildEmojisUpdateEventType        = "GUILD_EMOJIS_UPDATE"
+	guildIntegrationsUpdateEventType  = "GUILD_INTEGRATIONS_UPDATE"
+	guildMemberAddEventType           = "GUILD_MEMBER_ADD"
+	guildMemberRemoveEventType        = "GUILD_MEMBER_REMOVE"
+	guildMemberUpdateEventType        = "GUILD_MEMBER_UPDATE"
+	guildMembersChunkEventType        = "GUILD_MEMBERS_CHUNK"
+	guildRoleCreateEventType          = "GUILD_ROLE_CREATE"
+	guildRoleDeleteEventType          = "GUILD_ROLE_DELETE"
+	guildRoleUpdateEventType          = "GUILD_ROLE_UPDATE"
+	guildUpdateEventType              = "GUILD_UPDATE"
+	messageAckEventType               = "MESSAGE_ACK"
+	messageCreateEventType            = "MESSAGE_CREATE"
+	messageDeleteEventType            = "MESSAGE_DELETE"
+	messageDeleteBulkEventType        = "MESSAGE_DELETE_BULK"
+	messageReactionAddEventType       = "MESSAGE_REACTION_ADD"
+	messageReactionRemoveEventType    = "MESSAGE_REACTION_REMOVE"
+	messageReactionRemoveAllEventType = "MESSAGE_REACTION_REMOVE_ALL"
+	messageUpdateEventType            = "MESSAGE_UPDATE"
+	presenceUpdateEventType           = "PRESENCE_UPDATE"
+	presencesReplaceEventType         = "PRESENCES_REPLACE"
+	rateLimitEventType                = "__RATE_LIMIT__"
+	readyEventType                    = "READY"
+	relationshipAddEventType          = "RELATIONSHIP_ADD"
+	relationshipRemoveEventType       = "RELATIONSHIP_REMOVE"
+	resumedEventType                  = "RESUMED"
+	typingStartEventType              = "TYPING_START"
+	userGuildSettingsUpdateEventType  = "USER_GUILD_SETTINGS_UPDATE"
+	userNoteUpdateEventType           = "USER_NOTE_UPDATE"
+	userSettingsUpdateEventType       = "USER_SETTINGS_UPDATE"
+	userUpdateEventType               = "USER_UPDATE"
+	voiceServerUpdateEventType        = "VOICE_SERVER_UPDATE"
+	voiceStateUpdateEventType         = "VOICE_STATE_UPDATE"
 )
 
 // channelCreateEventHandler is an event handler for ChannelCreate events.
@@ -137,11 +140,6 @@ func (eh connectEventHandler) Type() string {
 	return connectEventType
 }
 
-// New returns a new instance of Connect.
-func (eh connectEventHandler) New() interface{} {
-	return &Connect{}
-}
-
 // Handle is the handler for Connect events.
 func (eh connectEventHandler) Handle(s *Session, i interface{}) {
 	if t, ok := i.(*Connect); ok {
@@ -157,11 +155,6 @@ func (eh disconnectEventHandler) Type() string {
 	return disconnectEventType
 }
 
-// New returns a new instance of Disconnect.
-func (eh disconnectEventHandler) New() interface{} {
-	return &Disconnect{}
-}
-
 // Handle is the handler for Disconnect events.
 func (eh disconnectEventHandler) Handle(s *Session, i interface{}) {
 	if t, ok := i.(*Disconnect); ok {
@@ -177,11 +170,6 @@ func (eh eventEventHandler) Type() string {
 	return eventEventType
 }
 
-// New returns a new instance of Event.
-func (eh eventEventHandler) New() interface{} {
-	return &Event{}
-}
-
 // Handle is the handler for Event events.
 func (eh eventEventHandler) Handle(s *Session, i interface{}) {
 	if t, ok := i.(*Event); ok {
@@ -529,6 +517,26 @@ func (eh messageDeleteEventHandler) Handle(s *Session, i interface{}) {
 	}
 }
 
+// messageDeleteBulkEventHandler is an event handler for MessageDeleteBulk events.
+type messageDeleteBulkEventHandler func(*Session, *MessageDeleteBulk)
+
+// Type returns the event type for MessageDeleteBulk events.
+func (eh messageDeleteBulkEventHandler) Type() string {
+	return messageDeleteBulkEventType
+}
+
+// New returns a new instance of MessageDeleteBulk.
+func (eh messageDeleteBulkEventHandler) New() interface{} {
+	return &MessageDeleteBulk{}
+}
+
+// Handle is the handler for MessageDeleteBulk events.
+func (eh messageDeleteBulkEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*MessageDeleteBulk); ok {
+		eh(s, t)
+	}
+}
+
 // messageReactionAddEventHandler is an event handler for MessageReactionAdd events.
 type messageReactionAddEventHandler func(*Session, *MessageReactionAdd)
 
@@ -569,6 +577,26 @@ func (eh messageReactionRemoveEventHandler) Handle(s *Session, i interface{}) {
 	}
 }
 
+// messageReactionRemoveAllEventHandler is an event handler for MessageReactionRemoveAll events.
+type messageReactionRemoveAllEventHandler func(*Session, *MessageReactionRemoveAll)
+
+// Type returns the event type for MessageReactionRemoveAll events.
+func (eh messageReactionRemoveAllEventHandler) Type() string {
+	return messageReactionRemoveAllEventType
+}
+
+// New returns a new instance of MessageReactionRemoveAll.
+func (eh messageReactionRemoveAllEventHandler) New() interface{} {
+	return &MessageReactionRemoveAll{}
+}
+
+// Handle is the handler for MessageReactionRemoveAll events.
+func (eh messageReactionRemoveAllEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*MessageReactionRemoveAll); ok {
+		eh(s, t)
+	}
+}
+
 // messageUpdateEventHandler is an event handler for MessageUpdate events.
 type messageUpdateEventHandler func(*Session, *MessageUpdate)
 
@@ -637,11 +665,6 @@ func (eh rateLimitEventHandler) Type() string {
 	return rateLimitEventType
 }
 
-// New returns a new instance of RateLimit.
-func (eh rateLimitEventHandler) New() interface{} {
-	return &RateLimit{}
-}
-
 // Handle is the handler for RateLimit events.
 func (eh rateLimitEventHandler) Handle(s *Session, i interface{}) {
 	if t, ok := i.(*RateLimit); ok {
@@ -769,6 +792,26 @@ func (eh userGuildSettingsUpdateEventHandler) Handle(s *Session, i interface{})
 	}
 }
 
+// userNoteUpdateEventHandler is an event handler for UserNoteUpdate events.
+type userNoteUpdateEventHandler func(*Session, *UserNoteUpdate)
+
+// Type returns the event type for UserNoteUpdate events.
+func (eh userNoteUpdateEventHandler) Type() string {
+	return userNoteUpdateEventType
+}
+
+// New returns a new instance of UserNoteUpdate.
+func (eh userNoteUpdateEventHandler) New() interface{} {
+	return &UserNoteUpdate{}
+}
+
+// Handle is the handler for UserNoteUpdate events.
+func (eh userNoteUpdateEventHandler) Handle(s *Session, i interface{}) {
+	if t, ok := i.(*UserNoteUpdate); ok {
+		eh(s, t)
+	}
+}
+
 // userSettingsUpdateEventHandler is an event handler for UserSettingsUpdate events.
 type userSettingsUpdateEventHandler func(*Session, *UserSettingsUpdate)
 
@@ -901,10 +944,14 @@ func handlerForInterface(handler interface{}) EventHandler {
 		return messageCreateEventHandler(v)
 	case func(*Session, *MessageDelete):
 		return messageDeleteEventHandler(v)
+	case func(*Session, *MessageDeleteBulk):
+		return messageDeleteBulkEventHandler(v)
 	case func(*Session, *MessageReactionAdd):
 		return messageReactionAddEventHandler(v)
 	case func(*Session, *MessageReactionRemove):
 		return messageReactionRemoveEventHandler(v)
+	case func(*Session, *MessageReactionRemoveAll):
+		return messageReactionRemoveAllEventHandler(v)
 	case func(*Session, *MessageUpdate):
 		return messageUpdateEventHandler(v)
 	case func(*Session, *PresenceUpdate):
@@ -925,6 +972,8 @@ func handlerForInterface(handler interface{}) EventHandler {
 		return typingStartEventHandler(v)
 	case func(*Session, *UserGuildSettingsUpdate):
 		return userGuildSettingsUpdateEventHandler(v)
+	case func(*Session, *UserNoteUpdate):
+		return userNoteUpdateEventHandler(v)
 	case func(*Session, *UserSettingsUpdate):
 		return userSettingsUpdateEventHandler(v)
 	case func(*Session, *UserUpdate):
@@ -937,6 +986,7 @@ func handlerForInterface(handler interface{}) EventHandler {
 
 	return nil
 }
+
 func init() {
 	registerInterfaceProvider(channelCreateEventHandler(nil))
 	registerInterfaceProvider(channelDeleteEventHandler(nil))
@@ -959,8 +1009,10 @@ func init() {
 	registerInterfaceProvider(messageAckEventHandler(nil))
 	registerInterfaceProvider(messageCreateEventHandler(nil))
 	registerInterfaceProvider(messageDeleteEventHandler(nil))
+	registerInterfaceProvider(messageDeleteBulkEventHandler(nil))
 	registerInterfaceProvider(messageReactionAddEventHandler(nil))
 	registerInterfaceProvider(messageReactionRemoveEventHandler(nil))
+	registerInterfaceProvider(messageReactionRemoveAllEventHandler(nil))
 	registerInterfaceProvider(messageUpdateEventHandler(nil))
 	registerInterfaceProvider(presenceUpdateEventHandler(nil))
 	registerInterfaceProvider(presencesReplaceEventHandler(nil))
@@ -970,6 +1022,7 @@ func init() {
 	registerInterfaceProvider(resumedEventHandler(nil))
 	registerInterfaceProvider(typingStartEventHandler(nil))
 	registerInterfaceProvider(userGuildSettingsUpdateEventHandler(nil))
+	registerInterfaceProvider(userNoteUpdateEventHandler(nil))
 	registerInterfaceProvider(userSettingsUpdateEventHandler(nil))
 	registerInterfaceProvider(userUpdateEventHandler(nil))
 	registerInterfaceProvider(voiceServerUpdateEventHandler(nil))

vendor/github.com/bwmarrin/discordgo/events.go

@@ -2,7 +2,6 @@ package discordgo
 
 import (
 	"encoding/json"
-	"time"
 )
 
 // This file contains all the possible structs that can be
@@ -28,7 +27,7 @@ type RateLimit struct {
 // Event provides a basic initial struct for all websocket events.
 type Event struct {
 	Operation int             `json:"op"`
-	Sequence  int             `json:"s"`
+	Sequence  int64           `json:"s"`
 	Type      string          `json:"t"`
 	RawData   json.RawMessage `json:"d"`
 	// Struct contains one of the other types in this file.
@@ -37,19 +36,19 @@ type Event struct {
 
 // A Ready stores all data for the websocket READY event.
 type Ready struct {
-	Version           int           `json:"v"`
-	SessionID         string        `json:"session_id"`
-	HeartbeatInterval time.Duration `json:"heartbeat_interval"`
-	User              *User         `json:"user"`
-	ReadState         []*ReadState  `json:"read_state"`
-	PrivateChannels   []*Channel    `json:"private_channels"`
-	Guilds            []*Guild      `json:"guilds"`
+	Version         int          `json:"v"`
+	SessionID       string       `json:"session_id"`
+	User            *User        `json:"user"`
+	ReadState       []*ReadState `json:"read_state"`
+	PrivateChannels []*Channel   `json:"private_channels"`
+	Guilds          []*Guild     `json:"guilds"`
 
 	// Undocumented fields
 	Settings          *Settings            `json:"user_settings"`
 	UserGuildSettings []*UserGuildSettings `json:"user_guild_settings"`
 	Relationships     []*Relationship      `json:"relationships"`
 	Presences         []*Presence          `json:"presences"`
+	Notes             map[string]string    `json:"notes"`
 }
 
 // ChannelCreate is the data for a ChannelCreate event.
@@ -179,6 +178,11 @@ type MessageReactionRemove struct {
 	*MessageReaction
 }
 
+// MessageReactionRemoveAll is the data for a MessageReactionRemoveAll event.
+type MessageReactionRemoveAll struct {
+	*MessageReaction
+}
+
 // PresencesReplace is the data for a PresencesReplace event.
 type PresencesReplace []*Presence
 
@@ -191,8 +195,7 @@ type PresenceUpdate struct {
 
 // Resumed is the data for a Resumed event.
 type Resumed struct {
-	HeartbeatInterval time.Duration `json:"heartbeat_interval"`
-	Trace             []string      `json:"_trace"`
+	Trace []string `json:"_trace"`
 }
 
 // RelationshipAdd is the data for a RelationshipAdd event.
@@ -225,6 +228,12 @@ type UserGuildSettingsUpdate struct {
 	*UserGuildSettings
 }
 
+// UserNoteUpdate is the data for a UserNoteUpdate event.
+type UserNoteUpdate struct {
+	ID   string `json:"id"`
+	Note string `json:"note"`
+}
+
 // VoiceServerUpdate is the data for a VoiceServerUpdate event.
 type VoiceServerUpdate struct {
 	Token    string `json:"token"`
@@ -236,3 +245,9 @@ type VoiceServerUpdate struct {
 type VoiceStateUpdate struct {
 	*VoiceState
 }
+
+// MessageDeleteBulk is the data for a MessageDeleteBulk event
+type MessageDeleteBulk struct {
+	Messages  []string `json:"ids"`
+	ChannelID string   `json:"channel_id"`
+}

vendor/github.com/bwmarrin/discordgo/examples/airhorn/main.go

@@ -6,7 +6,9 @@ import (
 	"fmt"
 	"io"
 	"os"
+	"os/signal"
 	"strings"
+	"syscall"
 	"time"
 
 	"github.com/bwmarrin/discordgo"
@@ -21,6 +23,7 @@ var token string
 var buffer = make([][]byte, 0)
 
 func main() {
+
 	if token == "" {
 		fmt.Println("No token provided. Please run: airhorn -t <bot token>")
 		return
@@ -56,21 +59,37 @@ func main() {
 		fmt.Println("Error opening Discord session: ", err)
 	}
 
+	// Wait here until CTRL-C or other term signal is received.
 	fmt.Println("Airhorn is now running.  Press CTRL-C to exit.")
-	// Simple way to keep program running until CTRL-C is pressed.
-	<-make(chan struct{})
-	return
+	sc := make(chan os.Signal, 1)
+	signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM, os.Interrupt, os.Kill)
+	<-sc
+
+	// Cleanly close down the Discord session.
+	dg.Close()
 }
 
+// This function will be called (due to AddHandler above) when the bot receives
+// the "ready" event from Discord.
 func ready(s *discordgo.Session, event *discordgo.Ready) {
+
 	// Set the playing status.
-	_ = s.UpdateStatus(0, "!airhorn")
+	s.UpdateStatus(0, "!airhorn")
 }
 
 // This function will be called (due to AddHandler above) every time a new
 // message is created on any channel that the autenticated bot has access to.
 func messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
+
+	// Ignore all messages created by the bot itself
+	// This isn't required in this specific example but it's a good practice.
+	if m.Author.ID == s.State.User.ID {
+		return
+	}
+
+	// check if the message is "!airhorn"
 	if strings.HasPrefix(m.Content, "!airhorn") {
+
 		// Find the channel that the message came from.
 		c, err := s.State.Channel(m.ChannelID)
 		if err != nil {
@@ -85,7 +104,7 @@ func messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
 			return
 		}
 
-		// Look for the message sender in that guilds current voice states.
+		// Look for the message sender in that guild's current voice states.
 		for _, vs := range g.VoiceStates {
 			if vs.UserID == m.Author.ID {
 				err = playSound(s, g.ID, vs.ChannelID)
@@ -102,6 +121,7 @@ func messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
 // This function will be called (due to AddHandler above) every time a new
 // guild is joined.
 func guildCreate(s *discordgo.Session, event *discordgo.GuildCreate) {
+
 	if event.Guild.Unavailable {
 		return
 	}
@@ -116,8 +136,8 @@ func guildCreate(s *discordgo.Session, event *discordgo.GuildCreate) {
 
 // loadSound attempts to load an encoded sound file from disk.
 func loadSound() error {
-	file, err := os.Open("airhorn.dca")
 
+	file, err := os.Open("airhorn.dca")
 	if err != nil {
 		fmt.Println("Error opening dca file :", err)
 		return err
@@ -131,7 +151,7 @@ func loadSound() error {
 
 		// If this is the end of the file, just return.
 		if err == io.EOF || err == io.ErrUnexpectedEOF {
-			file.Close()
+			err := file.Close()
 			if err != nil {
 				return err
 			}
@@ -160,6 +180,7 @@ func loadSound() error {
 
 // playSound plays the current buffer to the provided channel.
 func playSound(s *discordgo.Session, guildID, channelID string) (err error) {
+
 	// Join the provided voice channel.
 	vc, err := s.ChannelVoiceJoin(guildID, channelID, false, true)
 	if err != nil {
@@ -170,7 +191,7 @@ func playSound(s *discordgo.Session, guildID, channelID string) (err error) {
 	time.Sleep(250 * time.Millisecond)
 
 	// Start speaking.
-	_ = vc.Speaking(true)
+	vc.Speaking(true)
 
 	// Send the buffer data.
 	for _, buff := range buffer {
@@ -178,13 +199,13 @@ func playSound(s *discordgo.Session, guildID, channelID string) (err error) {
 	}
 
 	// Stop speaking
-	_ = vc.Speaking(false)
+	vc.Speaking(false)
 
 	// Sleep for a specificed amount of time before ending.
 	time.Sleep(250 * time.Millisecond)
 
 	// Disconnect from the provided voice channel.
-	_ = vc.Disconnect()
+	vc.Disconnect()
 
 	return nil
 }

vendor/github.com/bwmarrin/discordgo/examples/appmaker/main.go

@@ -1,38 +1,42 @@
 package main
 
 import (
+	"encoding/json"
 	"flag"
 	"fmt"
+	"os"
 
 	"github.com/bwmarrin/discordgo"
 )
 
 // Variables used for command line options
 var (
-	Email    string
-	Password string
 	Token    string
-	AppName  string
+	Name     string
 	DeleteID string
 	ListOnly bool
 )
 
 func init() {
 
-	flag.StringVar(&Email, "e", "", "Account Email")
-	flag.StringVar(&Password, "p", "", "Account Password")
-	flag.StringVar(&Token, "t", "", "Account Token")
+	flag.StringVar(&Token, "t", "", "Owner Account Token")
+	flag.StringVar(&Name, "n", "", "Name to give App/Bot")
 	flag.StringVar(&DeleteID, "d", "", "Application ID to delete")
 	flag.BoolVar(&ListOnly, "l", false, "List Applications Only")
-	flag.StringVar(&AppName, "a", "", "App/Bot Name")
 	flag.Parse()
+
+	if Token == "" {
+		flag.Usage()
+		os.Exit(1)
+	}
 }
 
 func main() {
 
 	var err error
+
 	// Create a new Discord session using the provided login information.
-	dg, err := discordgo.New(Email, Password, Token)
+	dg, err := discordgo.New(Token)
 	if err != nil {
 		fmt.Println("error creating Discord session,", err)
 		return
@@ -41,18 +45,17 @@ func main() {
 	// If -l set, only display a list of existing applications
 	// for the given account.
 	if ListOnly {
-		aps, err2 := dg.Applications()
-		if err2 != nil {
+
+		aps, err := dg.Applications()
+		if err != nil {
 			fmt.Println("error fetching applications,", err)
 			return
 		}
 
-		for k, v := range aps {
-			fmt.Printf("%d : --------------------------------------\n", k)
-			fmt.Printf("ID: %s\n", v.ID)
-			fmt.Printf("Name: %s\n", v.Name)
-			fmt.Printf("Secret: %s\n", v.Secret)
-			fmt.Printf("Description: %s\n", v.Description)
+		for _, v := range aps {
+			fmt.Println("-----------------------------------------------------")
+			b, _ := json.MarshalIndent(v, "", " ")
+			fmt.Println(string(b))
 		}
 		return
 	}
@@ -66,9 +69,14 @@ func main() {
 		return
 	}
 
+	if Name == "" {
+		flag.Usage()
+		os.Exit(1)
+	}
+
 	// Create a new application.
 	ap := &discordgo.Application{}
-	ap.Name = AppName
+	ap.Name = Name
 	ap, err = dg.ApplicationCreate(ap)
 	if err != nil {
 		fmt.Println("error creating new applicaiton,", err)
@@ -76,9 +84,8 @@ func main() {
 	}
 
 	fmt.Printf("Application created successfully:\n")
-	fmt.Printf("ID: %s\n", ap.ID)
-	fmt.Printf("Name: %s\n", ap.Name)
-	fmt.Printf("Secret: %s\n\n", ap.Secret)
+	b, _ := json.MarshalIndent(ap, "", " ")
+	fmt.Println(string(b))
 
 	// Create the bot account under the application we just created
 	bot, err := dg.ApplicationBotCreate(ap.ID)
@@ -88,11 +95,9 @@ func main() {
 	}
 
 	fmt.Printf("Bot account created successfully.\n")
-	fmt.Printf("ID: %s\n", bot.ID)
-	fmt.Printf("Username: %s\n", bot.Username)
-	fmt.Printf("Token: %s\n\n", bot.Token)
+	b, _ = json.MarshalIndent(bot, "", " ")
+	fmt.Println(string(b))
+
 	fmt.Println("Please save the above posted info in a secure place.")
 	fmt.Println("You will need that information to login with your bot account.")
-
-	return
 }

vendor/github.com/bwmarrin/discordgo/examples/avatar/localfile/main.go

@@ -1,73 +0,0 @@
-package main
-
-import (
-	"encoding/base64"
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"net/http"
-
-	"github.com/bwmarrin/discordgo"
-)
-
-// Variables used for command line parameters
-var (
-	Email       string
-	Password    string
-	Token       string
-	Avatar      string
-	BotID       string
-	BotUsername string
-)
-
-func init() {
-
-	flag.StringVar(&Email, "e", "", "Account Email")
-	flag.StringVar(&Password, "p", "", "Account Password")
-	flag.StringVar(&Token, "t", "", "Account Token")
-	flag.StringVar(&Avatar, "f", "./avatar.jpg", "Avatar File Name")
-	flag.Parse()
-}
-
-func main() {
-
-	// Create a new Discord session using the provided login information.
-	// Use discordgo.New(Token) to just use a token for login.
-	dg, err := discordgo.New(Email, Password, Token)
-	if err != nil {
-		fmt.Println("error creating Discord session,", err)
-		return
-	}
-
-	bot, err := dg.User("@me")
-	if err != nil {
-		fmt.Println("error fetching the bot details,", err)
-		return
-	}
-
-	BotID = bot.ID
-	BotUsername = bot.Username
-	changeAvatar(dg)
-
-	fmt.Println("Bot is now running.  Press CTRL-C to exit.")
-	// Simple way to keep program running until CTRL-C is pressed.
-	<-make(chan struct{})
-	return
-}
-
-// Helper function to change the avatar
-func changeAvatar(s *discordgo.Session) {
-	img, err := ioutil.ReadFile(Avatar)
-	if err != nil {
-		fmt.Println(err)
-	}
-
-	base64 := base64.StdEncoding.EncodeToString(img)
-
-	avatar := fmt.Sprintf("data:%s;base64,%s", http.DetectContentType(img), base64)
-
-	_, err = s.UserUpdate("", "", BotUsername, avatar, "")
-	if err != nil {
-		fmt.Println(err)
-	}
-}

vendor/github.com/bwmarrin/discordgo/examples/avatar/main.go

@@ -0,0 +1,89 @@
+package main
+
+import (
+	"encoding/base64"
+	"flag"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"os"
+
+	"github.com/bwmarrin/discordgo"
+)
+
+// Variables used for command line parameters
+var (
+	Token      string
+	AvatarFile string
+	AvatarURL  string
+)
+
+func init() {
+
+	flag.StringVar(&Token, "t", "", "Bot Token")
+	flag.StringVar(&AvatarFile, "f", "", "Avatar File Name")
+	flag.StringVar(&AvatarURL, "u", "", "URL to the avatar image")
+	flag.Parse()
+
+	if Token == "" || (AvatarFile == "" && AvatarURL == "") {
+		flag.Usage()
+		os.Exit(1)
+	}
+}
+
+func main() {
+
+	// Create a new Discord session using the provided login information.
+	dg, err := discordgo.New("Bot " + Token)
+	if err != nil {
+		fmt.Println("error creating Discord session,", err)
+		return
+	}
+
+	// Declare these here so they can be used in the below two if blocks and
+	// still carry over to the end of this function.
+	var base64img string
+	var contentType string
+
+	// If we're using a URL link for the Avatar
+	if AvatarURL != "" {
+
+		resp, err := http.Get(AvatarURL)
+		if err != nil {
+			fmt.Println("Error retrieving the file, ", err)
+			return
+		}
+
+		defer func() {
+			_ = resp.Body.Close()
+		}()
+
+		img, err := ioutil.ReadAll(resp.Body)
+		if err != nil {
+			fmt.Println("Error reading the response, ", err)
+			return
+		}
+
+		contentType = http.DetectContentType(img)
+		base64img = base64.StdEncoding.EncodeToString(img)
+	}
+
+	// If we're using a local file for the Avatar
+	if AvatarFile != "" {
+		img, err := ioutil.ReadFile(AvatarFile)
+		if err != nil {
+			fmt.Println(err)
+		}
+
+		contentType = http.DetectContentType(img)
+		base64img = base64.StdEncoding.EncodeToString(img)
+	}
+
+	// Now lets format our base64 image into the proper format Discord wants
+	// and then call UserUpdate to set it as our user's Avatar.
+	avatar := fmt.Sprintf("data:%s;base64,%s", contentType, base64img)
+	_, err = dg.UserUpdate("", "", "", avatar, "")
+	if err != nil {
+		fmt.Println(err)
+	}
+}

vendor/github.com/bwmarrin/discordgo/examples/avatar/url/main.go

@@ -1,86 +0,0 @@
-package main
-
-import (
-	"encoding/base64"
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"net/http"
-
-	"github.com/bwmarrin/discordgo"
-)
-
-// Variables used for command line parameters
-var (
-	Email       string
-	Password    string
-	Token       string
-	URL         string
-	BotID       string
-	BotUsername string
-)
-
-func init() {
-
-	flag.StringVar(&Email, "e", "", "Account Email")
-	flag.StringVar(&Password, "p", "", "Account Password")
-	flag.StringVar(&Token, "t", "", "Account Token")
-	flag.StringVar(&URL, "l", "http://bwmarrin.github.io/discordgo/img/discordgo.png", "Link to the avatar image")
-	flag.Parse()
-}
-
-func main() {
-
-	// Create a new Discord session using the provided login information.
-	// Use discordgo.New(Token) to just use a token for login.
-	dg, err := discordgo.New(Email, Password, Token)
-	if err != nil {
-		fmt.Println("error creating Discord session,", err)
-		return
-	}
-
-	bot, err := dg.User("@me")
-	if err != nil {
-		fmt.Println("error fetching the bot details,", err)
-		return
-	}
-
-	BotID = bot.ID
-	BotUsername = bot.Username
-	changeAvatar(dg)
-
-	fmt.Println("Bot is now running.  Press CTRL-C to exit.")
-	// Simple way to keep program running until CTRL-C is pressed.
-	<-make(chan struct{})
-	return
-}
-
-// Helper function to change the avatar
-func changeAvatar(s *discordgo.Session) {
-
-	resp, err := http.Get(URL)
-	if err != nil {
-		fmt.Println("Error retrieving the file, ", err)
-		return
-	}
-
-	defer func() {
-		_ = resp.Body.Close()
-	}()
-
-	img, err := ioutil.ReadAll(resp.Body)
-	if err != nil {
-		fmt.Println("Error reading the response, ", err)
-		return
-	}
-
-	base64 := base64.StdEncoding.EncodeToString(img)
-
-	avatar := fmt.Sprintf("data:%s;base64,%s", http.DetectContentType(img), base64)
-
-	_, err = s.UserUpdate("", "", BotUsername, avatar, "")
-	if err != nil {
-		fmt.Println("Error setting the avatar, ", err)
-	}
-
-}

vendor/github.com/bwmarrin/discordgo/examples/mytoken/main.go

@@ -3,6 +3,7 @@ package main
 import (
 	"flag"
 	"fmt"
+	"os"
 
 	"github.com/bwmarrin/discordgo"
 )
@@ -18,6 +19,11 @@ func init() {
 	flag.StringVar(&Email, "e", "", "Account Email")
 	flag.StringVar(&Password, "p", "", "Account Password")
 	flag.Parse()
+
+	if Email == "" || Password == "" {
+		flag.Usage()
+		os.Exit(1)
+	}
 }
 
 func main() {
@@ -29,5 +35,6 @@ func main() {
 		return
 	}
 
+	// Print out your token.
 	fmt.Printf("Your Authentication Token is:\n\n%s\n", dg.Token)
 }

vendor/github.com/bwmarrin/discordgo/examples/new_basic/main.go

@@ -1,53 +0,0 @@
-package main
-
-import (
-	"flag"
-	"fmt"
-	"time"
-
-	"github.com/bwmarrin/discordgo"
-)
-
-// Variables used for command line parameters
-var (
-	Token string
-)
-
-func init() {
-
-	flag.StringVar(&Token, "t", "", "Bot Token")
-	flag.Parse()
-}
-
-func main() {
-
-	// Create a new Discord session using the provided bot token.
-	dg, err := discordgo.New("Bot " + Token)
-	if err != nil {
-		fmt.Println("error creating Discord session,", err)
-		return
-	}
-
-	// Register messageCreate as a callback for the messageCreate events.
-	dg.AddHandler(messageCreate)
-
-	// Open the websocket and begin listening.
-	err = dg.Open()
-	if err != nil {
-		fmt.Println("error opening connection,", err)
-		return
-	}
-
-	fmt.Println("Bot is now running.  Press CTRL-C to exit.")
-	// Simple way to keep program running until CTRL-C is pressed.
-	<-make(chan struct{})
-	return
-}
-
-// This function will be called (due to AddHandler above) every time a new
-// message is created on any channel that the autenticated bot has access to.
-func messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
-
-	// Print message to stdout.
-	fmt.Printf("%20s %20s %20s > %s\n", m.ChannelID, time.Now().Format(time.Stamp), m.Author.Username, m.Content)
-}

vendor/github.com/bwmarrin/discordgo/examples/pingpong/main.go

@@ -3,6 +3,9 @@ package main
 import (
 	"flag"
 	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
 
 	"github.com/bwmarrin/discordgo"
 )
@@ -10,7 +13,6 @@ import (
 // Variables used for command line parameters
 var (
 	Token string
-	BotID string
 )
 
 func init() {
@@ -28,29 +30,24 @@ func main() {
 		return
 	}
 
-	// Get the account information.
-	u, err := dg.User("@me")
-	if err != nil {
-		fmt.Println("error obtaining account details,", err)
-	}
-
-	// Store the account ID for later use.
-	BotID = u.ID
-
-	// Register messageCreate as a callback for the messageCreate events.
+	// Register the messageCreate func as a callback for MessageCreate events.
 	dg.AddHandler(messageCreate)
 
-	// Open the websocket and begin listening.
+	// Open a websocket connection to Discord and begin listening.
 	err = dg.Open()
 	if err != nil {
 		fmt.Println("error opening connection,", err)
 		return
 	}
 
+	// Wait here until CTRL-C or other term signal is received.
 	fmt.Println("Bot is now running.  Press CTRL-C to exit.")
-	// Simple way to keep program running until CTRL-C is pressed.
-	<-make(chan struct{})
-	return
+	sc := make(chan os.Signal, 1)
+	signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM, os.Interrupt, os.Kill)
+	<-sc
+
+	// Cleanly close down the Discord session.
+	dg.Close()
 }
 
 // This function will be called (due to AddHandler above) every time a new
@@ -58,17 +55,17 @@ func main() {
 func messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
 
 	// Ignore all messages created by the bot itself
-	if m.Author.ID == BotID {
+	// This isn't required in this specific example but it's a good practice.
+	if m.Author.ID == s.State.User.ID {
 		return
 	}
-
 	// If the message is "ping" reply with "Pong!"
 	if m.Content == "ping" {
-		_, _ = s.ChannelMessageSend(m.ChannelID, "Pong!")
+		s.ChannelMessageSend(m.ChannelID, "Pong!")
 	}
 
 	// If the message is "pong" reply with "Ping!"
 	if m.Content == "pong" {
-		_, _ = s.ChannelMessageSend(m.ChannelID, "Ping!")
+		s.ChannelMessageSend(m.ChannelID, "Ping!")
 	}
 }

vendor/github.com/bwmarrin/discordgo/message.go

@@ -10,8 +10,24 @@
 package discordgo
 
 import (
-	"fmt"
+	"io"
 	"regexp"
+	"strings"
+)
+
+// MessageType is the type of Message
+type MessageType int
+
+// Block contains the valid known MessageType values
+const (
+	MessageTypeDefault MessageType = iota
+	MessageTypeRecipientAdd
+	MessageTypeRecipientRemove
+	MessageTypeCall
+	MessageTypeChannelNameChange
+	MessageTypeChannelIconChange
+	MessageTypeChannelPinnedMessage
+	MessageTypeGuildMemberJoin
 )
 
 // A Message stores all data related to a specific Discord message.
@@ -29,6 +45,58 @@ type Message struct {
 	Embeds          []*MessageEmbed      `json:"embeds"`
 	Mentions        []*User              `json:"mentions"`
 	Reactions       []*MessageReactions  `json:"reactions"`
+	Type            MessageType          `json:"type"`
+}
+
+// File stores info about files you e.g. send in messages.
+type File struct {
+	Name        string
+	ContentType string
+	Reader      io.Reader
+}
+
+// MessageSend stores all parameters you can send with ChannelMessageSendComplex.
+type MessageSend struct {
+	Content string        `json:"content,omitempty"`
+	Embed   *MessageEmbed `json:"embed,omitempty"`
+	Tts     bool          `json:"tts"`
+	Files   []*File       `json:"-"`
+
+	// TODO: Remove this when compatibility is not required.
+	File *File `json:"-"`
+}
+
+// MessageEdit is used to chain parameters via ChannelMessageEditComplex, which
+// is also where you should get the instance from.
+type MessageEdit struct {
+	Content *string       `json:"content,omitempty"`
+	Embed   *MessageEmbed `json:"embed,omitempty"`
+
+	ID      string
+	Channel string
+}
+
+// NewMessageEdit returns a MessageEdit struct, initialized
+// with the Channel and ID.
+func NewMessageEdit(channelID string, messageID string) *MessageEdit {
+	return &MessageEdit{
+		Channel: channelID,
+		ID:      messageID,
+	}
+}
+
+// SetContent is the same as setting the variable Content,
+// except it doesn't take a pointer.
+func (m *MessageEdit) SetContent(str string) *MessageEdit {
+	m.Content = &str
+	return m
+}
+
+// SetEmbed is a convenience function for setting the embed,
+// so you can chain commands.
+func (m *MessageEdit) SetEmbed(embed *MessageEmbed) *MessageEdit {
+	m.Embed = embed
+	return m
 }
 
 // A MessageAttachment stores data for message attachments.
@@ -120,13 +188,65 @@ type MessageReactions struct {
 
 // ContentWithMentionsReplaced will replace all @<id> mentions with the
 // username of the mention.
-func (m *Message) ContentWithMentionsReplaced() string {
-	if m.Mentions == nil {
-		return m.Content
-	}
-	content := m.Content
+func (m *Message) ContentWithMentionsReplaced() (content string) {
+	content = m.Content
+
 	for _, user := range m.Mentions {
-		content = regexp.MustCompile(fmt.Sprintf("<@!?(%s)>", user.ID)).ReplaceAllString(content, "@"+user.Username)
+		content = strings.NewReplacer(
+			"<@"+user.ID+">", "@"+user.Username,
+			"<@!"+user.ID+">", "@"+user.Username,
+		).Replace(content)
 	}
-	return content
+	return
+}
+
+var patternChannels = regexp.MustCompile("<#[^>]*>")
+
+// ContentWithMoreMentionsReplaced will replace all @<id> mentions with the
+// username of the mention, but also role IDs and more.
+func (m *Message) ContentWithMoreMentionsReplaced(s *Session) (content string, err error) {
+	content = m.Content
+
+	if !s.StateEnabled {
+		content = m.ContentWithMentionsReplaced()
+		return
+	}
+
+	channel, err := s.State.Channel(m.ChannelID)
+	if err != nil {
+		content = m.ContentWithMentionsReplaced()
+		return
+	}
+
+	for _, user := range m.Mentions {
+		nick := user.Username
+
+		member, err := s.State.Member(channel.GuildID, user.ID)
+		if err == nil && member.Nick != "" {
+			nick = member.Nick
+		}
+
+		content = strings.NewReplacer(
+			"<@"+user.ID+">", "@"+user.Username,
+			"<@!"+user.ID+">", "@"+nick,
+		).Replace(content)
+	}
+	for _, roleID := range m.MentionRoles {
+		role, err := s.State.Role(channel.GuildID, roleID)
+		if err != nil || !role.Mentionable {
+			continue
+		}
+
+		content = strings.Replace(content, "<&"+role.ID+">", "@"+role.Name, -1)
+	}
+
+	content = patternChannels.ReplaceAllStringFunc(content, func(mention string) string {
+		channel, err := s.State.Channel(mention[2 : len(mention)-1])
+		if err != nil || channel.Type == ChannelTypeGuildVoice {
+			return mention
+		}
+
+		return "#" + channel.Name
+	})
+	return
 }

vendor/github.com/bwmarrin/discordgo/oauth2.go

@@ -15,13 +15,18 @@ package discordgo
 
 // An Application struct stores values for a Discord OAuth2 Application
 type Application struct {
-	ID           string    `json:"id,omitempty"`
-	Name         string    `json:"name"`
-	Description  string    `json:"description,omitempty"`
-	Icon         string    `json:"icon,omitempty"`
-	Secret       string    `json:"secret,omitempty"`
-	RedirectURIs *[]string `json:"redirect_uris,omitempty"`
-	Owner        *User     `json:"owner"`
+	ID                  string    `json:"id,omitempty"`
+	Name                string    `json:"name"`
+	Description         string    `json:"description,omitempty"`
+	Icon                string    `json:"icon,omitempty"`
+	Secret              string    `json:"secret,omitempty"`
+	RedirectURIs        *[]string `json:"redirect_uris,omitempty"`
+	BotRequireCodeGrant bool      `json:"bot_require_code_grant,omitempty"`
+	BotPublic           bool      `json:"bot_public,omitempty"`
+	RPCApplicationState int       `json:"rpc_application_state,omitempty"`
+	Flags               int       `json:"flags,omitempty"`
+	Owner               *User     `json:"owner"`
+	Bot                 *User     `json:"bot"`
 }
 
 // Application returns an Application structure of a specific Application

vendor/github.com/bwmarrin/discordgo/ratelimit.go

@@ -3,16 +3,26 @@ package discordgo
 import (
 	"net/http"
 	"strconv"
+	"strings"
 	"sync"
+	"sync/atomic"
 	"time"
 )
 
+// customRateLimit holds information for defining a custom rate limit
+type customRateLimit struct {
+	suffix   string
+	requests int
+	reset    time.Duration
+}
+
 // RateLimiter holds all ratelimit buckets
 type RateLimiter struct {
 	sync.Mutex
-	global          *Bucket
-	buckets         map[string]*Bucket
-	globalRateLimit time.Duration
+	global           *int64
+	buckets          map[string]*Bucket
+	globalRateLimit  time.Duration
+	customRateLimits []*customRateLimit
 }
 
 // NewRatelimiter returns a new RateLimiter
@@ -20,7 +30,14 @@ func NewRatelimiter() *RateLimiter {
 
 	return &RateLimiter{
 		buckets: make(map[string]*Bucket),
-		global:  &Bucket{Key: "global"},
+		global:  new(int64),
+		customRateLimits: []*customRateLimit{
+			&customRateLimit{
+				suffix:   "//reactions//",
+				requests: 1,
+				reset:    200 * time.Millisecond,
+			},
+		},
 	}
 }
 
@@ -39,6 +56,14 @@ func (r *RateLimiter) getBucket(key string) *Bucket {
 		global:    r.global,
 	}
 
+	// Check if there is a custom ratelimit set for this bucket ID.
+	for _, rl := range r.customRateLimits {
+		if strings.HasSuffix(b.Key, rl.suffix) {
+			b.customRateLimit = rl
+			break
+		}
+	}
+
 	r.buckets[key] = b
 	return b
 }
@@ -58,8 +83,10 @@ func (r *RateLimiter) LockBucket(bucketID string) *Bucket {
 	}
 
 	// Check for global ratelimits
-	r.global.Lock()
-	r.global.Unlock()
+	sleepTo := time.Unix(0, atomic.LoadInt64(r.global))
+	if now := time.Now(); now.Before(sleepTo) {
+		time.Sleep(sleepTo.Sub(now))
+	}
 
 	b.remaining--
 	return b
@@ -72,14 +99,29 @@ type Bucket struct {
 	remaining int
 	limit     int
 	reset     time.Time
-	global    *Bucket
+	global    *int64
+
+	lastReset       time.Time
+	customRateLimit *customRateLimit
 }
 
 // Release unlocks the bucket and reads the headers to update the buckets ratelimit info
 // and locks up the whole thing in case if there's a global ratelimit.
 func (b *Bucket) Release(headers http.Header) error {
-
 	defer b.Unlock()
+
+	// Check if the bucket uses a custom ratelimiter
+	if rl := b.customRateLimit; rl != nil {
+		if time.Now().Sub(b.lastReset) >= rl.reset {
+			b.remaining = rl.requests - 1
+			b.lastReset = time.Now()
+		}
+		if b.remaining < 1 {
+			b.reset = time.Now().Add(rl.reset)
+		}
+		return nil
+	}
+
 	if headers == nil {
 		return nil
 	}
@@ -89,41 +131,25 @@ func (b *Bucket) Release(headers http.Header) error {
 	global := headers.Get("X-RateLimit-Global")
 	retryAfter := headers.Get("Retry-After")
 
-	// If it's global just keep the main ratelimit mutex locked
-	if global != "" {
-		parsedAfter, err := strconv.Atoi(retryAfter)
-		if err != nil {
-			return err
-		}
-
-		// Lock it in a new goroutine so that this isn't a blocking call
-		go func() {
-			// Make sure if several requests were waiting we don't sleep for n * retry-after
-			// where n is the amount of requests that were going on
-			sleepTo := time.Now().Add(time.Duration(parsedAfter) * time.Millisecond)
-
-			b.global.Lock()
-
-			sleepDuration := sleepTo.Sub(time.Now())
-			if sleepDuration > 0 {
-				time.Sleep(sleepDuration)
-			}
-
-			b.global.Unlock()
-		}()
-
-		return nil
-	}
-
-	// Update reset time if either retry after or reset headers are present
-	// Prefer retryafter because it's more accurate with time sync and whatnot
+	// Update global and per bucket reset time if the proper headers are available
+	// If global is set, then it will block all buckets until after Retry-After
+	// If Retry-After without global is provided it will use that for the new reset
+	// time since it's more accurate than X-RateLimit-Reset.
+	// If Retry-After after is not proided, it will update the reset time from X-RateLimit-Reset
 	if retryAfter != "" {
 		parsedAfter, err := strconv.ParseInt(retryAfter, 10, 64)
 		if err != nil {
 			return err
 		}
-		b.reset = time.Now().Add(time.Duration(parsedAfter) * time.Millisecond)
 
+		resetAt := time.Now().Add(time.Duration(parsedAfter) * time.Millisecond)
+
+		// Lock either this single bucket or all buckets
+		if global != "" {
+			atomic.StoreInt64(b.global, resetAt.UnixNano())
+		} else {
+			b.reset = resetAt
+		}
 	} else if reset != "" {
 		// Calculate the reset time by using the date header returned from discord
 		discordTime, err := http.ParseTime(headers.Get("Date"))

vendor/github.com/bwmarrin/discordgo/restapi.go

@@ -23,14 +23,22 @@ import (
 	"log"
 	"mime/multipart"
 	"net/http"
+	"net/textproto"
 	"net/url"
 	"strconv"
 	"strings"
 	"time"
 )
 
-// ErrJSONUnmarshal is returned for JSON Unmarshall errors.
-var ErrJSONUnmarshal = errors.New("json unmarshal")
+// All error constants
+var (
+	ErrJSONUnmarshal           = errors.New("json unmarshal")
+	ErrStatusOffline           = errors.New("You can't set your Status to offline")
+	ErrVerificationLevelBounds = errors.New("VerificationLevel out of bounds, should be between 0 and 3")
+	ErrPruneDaysBounds         = errors.New("the number of days should be more than or equal to 1")
+	ErrGuildNoIcon             = errors.New("guild does not have an icon set")
+	ErrGuildNoSplash           = errors.New("guild does not have a splash set")
+)
 
 // Request is the same as RequestWithBucketID but the bucket id is the same as the urlStr
 func (s *Session) Request(method, urlStr string, data interface{}) (response []byte, err error) {
@@ -87,9 +95,7 @@ func (s *Session) request(method, urlStr, contentType string, b []byte, bucketID
 		}
 	}
 
-	client := &http.Client{Timeout: (20 * time.Second)}
-
-	resp, err := client.Do(req)
+	resp, err := s.Client.Do(req)
 	if err != nil {
 		bucket.Release(nil)
 		return
@@ -175,6 +181,12 @@ func unmarshal(data []byte, v interface{}) error {
 // ------------------------------------------------------------------------------------------------
 
 // Login asks the Discord server for an authentication token.
+//
+// NOTE: While email/pass authentication is supported by DiscordGo it is
+// HIGHLY DISCOURAGED by Discord. Please only use email/pass to obtain a token
+// and then use that authentication token for all future connections.
+// Also, doing any form of automation with a user (non Bot) account may result
+// in that account being permanently banned from Discord.
 func (s *Session) Login(email, password string) (err error) {
 
 	data := struct {
@@ -189,6 +201,7 @@ func (s *Session) Login(email, password string) (err error) {
 
 	temp := struct {
 		Token string `json:"token"`
+		MFA   bool   `json:"mfa"`
 	}{}
 
 	err = unmarshal(response, &temp)
@@ -197,6 +210,7 @@ func (s *Session) Login(email, password string) (err error) {
 	}
 
 	s.Token = temp.Token
+	s.MFA = temp.MFA
 	return
 }
 
@@ -264,15 +278,21 @@ func (s *Session) User(userID string) (st *User, err error) {
 	return
 }
 
-// UserAvatar returns an image.Image of a users Avatar.
+// UserAvatar is deprecated. Please use UserAvatarDecode
 // userID    : A user ID or "@me" which is a shortcut of current user ID
 func (s *Session) UserAvatar(userID string) (img image.Image, err error) {
 	u, err := s.User(userID)
 	if err != nil {
 		return
 	}
+	img, err = s.UserAvatarDecode(u)
+	return
+}
 
-	body, err := s.RequestWithBucketID("GET", EndpointUserAvatar(userID, u.Avatar), nil, EndpointUserAvatar("", ""))
+// UserAvatarDecode returns an image.Image of a user's Avatar
+// user : The user which avatar should be retrieved
+func (s *Session) UserAvatarDecode(u *User) (img image.Image, err error) {
+	body, err := s.RequestWithBucketID("GET", EndpointUserAvatar(u.ID, u.Avatar), nil, EndpointUserAvatar("", ""))
 	if err != nil {
 		return
 	}
@@ -290,9 +310,9 @@ func (s *Session) UserUpdate(email, password, username, avatar, newPassword stri
 	// If left blank, avatar will be set to null/blank
 
 	data := struct {
-		Email       string `json:"email"`
-		Password    string `json:"password"`
-		Username    string `json:"username"`
+		Email       string `json:"email,omitempty"`
+		Password    string `json:"password,omitempty"`
+		Username    string `json:"username,omitempty"`
 		Avatar      string `json:"avatar,omitempty"`
 		NewPassword string `json:"new_password,omitempty"`
 	}{email, password, username, avatar, newPassword}
@@ -322,7 +342,7 @@ func (s *Session) UserSettings() (st *Settings, err error) {
 // status   : The new status (Actual valid status are 'online','idle','dnd','invisible')
 func (s *Session) UserUpdateStatus(status Status) (st *Settings, err error) {
 	if status == StatusOffline {
-		err = errors.New("You can't set your Status to offline")
+		err = ErrStatusOffline
 		return
 	}
 
@@ -370,9 +390,30 @@ func (s *Session) UserChannelCreate(recipientID string) (st *Channel, err error)
 }
 
 // UserGuilds returns an array of UserGuild structures for all guilds.
-func (s *Session) UserGuilds() (st []*UserGuild, err error) {
+// limit     : The number guilds that can be returned. (max 100)
+// beforeID  : If provided all guilds returned will be before given ID.
+// afterID   : If provided all guilds returned will be after given ID.
+func (s *Session) UserGuilds(limit int, beforeID, afterID string) (st []*UserGuild, err error) {
 
-	body, err := s.RequestWithBucketID("GET", EndpointUserGuilds("@me"), nil, EndpointUserGuilds(""))
+	v := url.Values{}
+
+	if limit > 0 {
+		v.Set("limit", strconv.Itoa(limit))
+	}
+	if afterID != "" {
+		v.Set("after", afterID)
+	}
+	if beforeID != "" {
+		v.Set("before", beforeID)
+	}
+
+	uri := EndpointUserGuilds("@me")
+
+	if len(v) > 0 {
+		uri = fmt.Sprintf("%s?%s", uri, v.Encode())
+	}
+
+	body, err := s.RequestWithBucketID("GET", uri, nil, EndpointUserGuilds(""))
 	if err != nil {
 		return
 	}
@@ -402,6 +443,13 @@ func (s *Session) UserGuildSettingsEdit(guildID string, settings *UserGuildSetti
 // NOTE: This function is now deprecated and will be removed in the future.
 // Please see the same function inside state.go
 func (s *Session) UserChannelPermissions(userID, channelID string) (apermissions int, err error) {
+	// Try to just get permissions from state.
+	apermissions, err = s.State.UserChannelPermissions(userID, channelID)
+	if err == nil {
+		return
+	}
+
+	// Otherwise try get as much data from state as possible, falling back to the network.
 	channel, err := s.State.Channel(channelID)
 	if err != nil || channel == nil {
 		channel, err = s.Channel(channelID)
@@ -431,6 +479,19 @@ func (s *Session) UserChannelPermissions(userID, channelID string) (apermissions
 		}
 	}
 
+	return memberPermissions(guild, channel, member), nil
+}
+
+// Calculates the permissions for a member.
+// https://support.discordapp.com/hc/en-us/articles/206141927-How-is-the-permission-hierarchy-structured-
+func memberPermissions(guild *Guild, channel *Channel, member *Member) (apermissions int) {
+	userID := member.User.ID
+
+	if userID == guild.OwnerID {
+		apermissions = PermissionAll
+		return
+	}
+
 	for _, role := range guild.Roles {
 		if role.ID == guild.ID {
 			apermissions |= role.Permissions
@@ -447,21 +508,36 @@ func (s *Session) UserChannelPermissions(userID, channelID string) (apermissions
 		}
 	}
 
-	if apermissions&PermissionAdministrator > 0 {
+	if apermissions&PermissionAdministrator == PermissionAdministrator {
 		apermissions |= PermissionAll
 	}
 
+	// Apply @everyone overrides from the channel.
+	for _, overwrite := range channel.PermissionOverwrites {
+		if guild.ID == overwrite.ID {
+			apermissions &= ^overwrite.Deny
+			apermissions |= overwrite.Allow
+			break
+		}
+	}
+
+	denies := 0
+	allows := 0
+
 	// Member overwrites can override role overrides, so do two passes
 	for _, overwrite := range channel.PermissionOverwrites {
 		for _, roleID := range member.Roles {
 			if overwrite.Type == "role" && roleID == overwrite.ID {
-				apermissions &= ^overwrite.Deny
-				apermissions |= overwrite.Allow
+				denies |= overwrite.Deny
+				allows |= overwrite.Allow
 				break
 			}
 		}
 	}
 
+	apermissions &= ^denies
+	apermissions |= allows
+
 	for _, overwrite := range channel.PermissionOverwrites {
 		if overwrite.Type == "member" && overwrite.ID == userID {
 			apermissions &= ^overwrite.Deny
@@ -470,11 +546,11 @@ func (s *Session) UserChannelPermissions(userID, channelID string) (apermissions
 		}
 	}
 
-	if apermissions&PermissionAdministrator > 0 {
+	if apermissions&PermissionAdministrator == PermissionAdministrator {
 		apermissions |= PermissionAllChannel
 	}
 
-	return
+	return apermissions
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -527,7 +603,7 @@ func (s *Session) GuildEdit(guildID string, g GuildParams) (st *Guild, err error
 	if g.VerificationLevel != nil {
 		val := *g.VerificationLevel
 		if val < 0 || val > 3 {
-			err = errors.New("VerificationLevel out of bounds, should be between 0 and 3")
+			err = ErrVerificationLevelBounds
 			return
 		}
 	}
@@ -551,13 +627,7 @@ func (s *Session) GuildEdit(guildID string, g GuildParams) (st *Guild, err error
 		}
 	}
 
-	data := struct {
-		Name              string             `json:"name,omitempty"`
-		Region            string             `json:"region,omitempty"`
-		VerificationLevel *VerificationLevel `json:"verification_level,omitempty"`
-	}{g.Name, g.Region, g.VerificationLevel}
-
-	body, err := s.RequestWithBucketID("PATCH", EndpointGuild(guildID), data, EndpointGuild(guildID))
+	body, err := s.RequestWithBucketID("PATCH", EndpointGuild(guildID), g, EndpointGuild(guildID))
 	if err != nil {
 		return
 	}
@@ -607,11 +677,28 @@ func (s *Session) GuildBans(guildID string) (st []*GuildBan, err error) {
 // userID    : The ID of a User
 // days      : The number of days of previous comments to delete.
 func (s *Session) GuildBanCreate(guildID, userID string, days int) (err error) {
+	return s.GuildBanCreateWithReason(guildID, userID, "", days)
+}
+
+// GuildBanCreateWithReason bans the given user from the given guild also providing a reaso.
+// guildID   : The ID of a Guild.
+// userID    : The ID of a User
+// reason    : The reason for this ban
+// days      : The number of days of previous comments to delete.
+func (s *Session) GuildBanCreateWithReason(guildID, userID, reason string, days int) (err error) {
 
 	uri := EndpointGuildBan(guildID, userID)
 
+	queryParams := url.Values{}
 	if days > 0 {
-		uri = fmt.Sprintf("%s?delete-message-days=%d", uri, days)
+		queryParams.Set("delete-message-days", strconv.Itoa(days))
+	}
+	if reason != "" {
+		queryParams.Set("reason", reason)
+	}
+
+	if len(queryParams) > 0 {
+		uri += "?" + queryParams.Encode()
 	}
 
 	_, err = s.RequestWithBucketID("PUT", uri, nil, EndpointGuildBan(guildID, ""))
@@ -677,7 +764,21 @@ func (s *Session) GuildMember(guildID, userID string) (st *Member, err error) {
 // userID    : The ID of a User
 func (s *Session) GuildMemberDelete(guildID, userID string) (err error) {
 
-	_, err = s.RequestWithBucketID("DELETE", EndpointGuildMember(guildID, userID), nil, EndpointGuildMember(guildID, ""))
+	return s.GuildMemberDeleteWithReason(guildID, userID, "")
+}
+
+// GuildMemberDeleteWithReason removes the given user from the given guild.
+// guildID   : The ID of a Guild.
+// userID    : The ID of a User
+// reason    : The reason for the kick
+func (s *Session) GuildMemberDeleteWithReason(guildID, userID, reason string) (err error) {
+
+	uri := EndpointGuildMember(guildID, userID)
+	if reason != "" {
+		uri += "?reason=" + url.QueryEscape(reason)
+	}
+
+	_, err = s.RequestWithBucketID("DELETE", uri, nil, EndpointGuildMember(guildID, ""))
 	return
 }
 
@@ -722,12 +823,17 @@ func (s *Session) GuildMemberMove(guildID, userID, channelID string) (err error)
 // GuildMemberNickname updates the nickname of a guild member
 // guildID   : The ID of a guild
 // userID    : The ID of a user
+// userID    : The ID of a user or "@me" which is a shortcut of the current user ID
 func (s *Session) GuildMemberNickname(guildID, userID, nickname string) (err error) {
 
 	data := struct {
 		Nick string `json:"nick"`
 	}{nickname}
 
+	if userID == "@me" {
+		userID += "/nick"
+	}
+
 	_, err = s.RequestWithBucketID("PATCH", EndpointGuildMember(guildID, userID), data, EndpointGuildMember(guildID, ""))
 	return
 }
@@ -738,7 +844,7 @@ func (s *Session) GuildMemberNickname(guildID, userID, nickname string) (err err
 //  roleID 	  : The ID of a Role to be assigned to the user.
 func (s *Session) GuildMemberRoleAdd(guildID, userID, roleID string) (err error) {
 
-	_, err = s.RequestWithBucketID("PUT", EndpointGuildMemberRole(guildID, userID, roleID), nil, EndpointGuildMemberRole(guildID, userID, roleID))
+	_, err = s.RequestWithBucketID("PUT", EndpointGuildMemberRole(guildID, userID, roleID), nil, EndpointGuildMemberRole(guildID, "", ""))
 
 	return
 }
@@ -749,7 +855,7 @@ func (s *Session) GuildMemberRoleAdd(guildID, userID, roleID string) (err error)
 //  roleID 	  : The ID of a Role to be removed from the user.
 func (s *Session) GuildMemberRoleRemove(guildID, userID, roleID string) (err error) {
 
-	_, err = s.RequestWithBucketID("DELETE", EndpointGuildMemberRole(guildID, userID, roleID), nil, EndpointGuildMemberRole(guildID, userID, roleID))
+	_, err = s.RequestWithBucketID("DELETE", EndpointGuildMemberRole(guildID, userID, roleID), nil, EndpointGuildMemberRole(guildID, "", ""))
 
 	return
 }
@@ -904,7 +1010,7 @@ func (s *Session) GuildPruneCount(guildID string, days uint32) (count uint32, er
 	count = 0
 
 	if days <= 0 {
-		err = errors.New("The number of days should be more than or equal to 1.")
+		err = ErrPruneDaysBounds
 		return
 	}
 
@@ -934,7 +1040,7 @@ func (s *Session) GuildPrune(guildID string, days uint32) (count uint32, err err
 	count = 0
 
 	if days <= 0 {
-		err = errors.New("The number of days should be more than or equal to 1.")
+		err = ErrPruneDaysBounds
 		return
 	}
 
@@ -1036,7 +1142,7 @@ func (s *Session) GuildIcon(guildID string) (img image.Image, err error) {
 	}
 
 	if g.Icon == "" {
-		err = errors.New("Guild does not have an icon set.")
+		err = ErrGuildNoIcon
 		return
 	}
 
@@ -1058,7 +1164,7 @@ func (s *Session) GuildSplash(guildID string) (img image.Image, err error) {
 	}
 
 	if g.Splash == "" {
-		err = errors.New("Guild does not have a splash set.")
+		err = ErrGuildNoSplash
 		return
 	}
 
@@ -1156,7 +1262,8 @@ func (s *Session) ChannelTyping(channelID string) (err error) {
 // limit     : The number messages that can be returned. (max 100)
 // beforeID  : If provided all messages returned will be before given ID.
 // afterID   : If provided all messages returned will be after given ID.
-func (s *Session) ChannelMessages(channelID string, limit int, beforeID, afterID string) (st []*Message, err error) {
+// aroundID  : If provided all messages returned will be around given ID.
+func (s *Session) ChannelMessages(channelID string, limit int, beforeID, afterID, aroundID string) (st []*Message, err error) {
 
 	uri := EndpointChannelMessages(channelID)
 
@@ -1170,6 +1277,9 @@ func (s *Session) ChannelMessages(channelID string, limit int, beforeID, afterID
 	if beforeID != "" {
 		v.Set("before", beforeID)
 	}
+	if aroundID != "" {
+		v.Set("around", aroundID)
+	}
 	if len(v) > 0 {
 		uri = fmt.Sprintf("%s?%s", uri, v.Encode())
 	}
@@ -1212,20 +1322,92 @@ func (s *Session) ChannelMessageAck(channelID, messageID, lastToken string) (st
 	return
 }
 
-// channelMessageSend sends a message to the given channel.
+// ChannelMessageSend sends a message to the given channel.
 // channelID : The ID of a Channel.
 // content   : The message to send.
-// tts       : Whether to send the message with TTS.
-func (s *Session) channelMessageSend(channelID, content string, tts bool) (st *Message, err error) {
+func (s *Session) ChannelMessageSend(channelID string, content string) (*Message, error) {
+	return s.ChannelMessageSendComplex(channelID, &MessageSend{
+		Content: content,
+	})
+}
 
-	// TODO: nonce string ?
-	data := struct {
-		Content string `json:"content"`
-		TTS     bool   `json:"tts"`
-	}{content, tts}
+var quoteEscaper = strings.NewReplacer("\\", "\\\\", `"`, "\\\"")
 
-	// Send the message to the given channel
-	response, err := s.RequestWithBucketID("POST", EndpointChannelMessages(channelID), data, EndpointChannelMessages(channelID))
+// ChannelMessageSendComplex sends a message to the given channel.
+// channelID : The ID of a Channel.
+// data      : The message struct to send.
+func (s *Session) ChannelMessageSendComplex(channelID string, data *MessageSend) (st *Message, err error) {
+	if data.Embed != nil && data.Embed.Type == "" {
+		data.Embed.Type = "rich"
+	}
+
+	endpoint := EndpointChannelMessages(channelID)
+
+	// TODO: Remove this when compatibility is not required.
+	files := data.Files
+	if data.File != nil {
+		if files == nil {
+			files = []*File{data.File}
+		} else {
+			err = fmt.Errorf("cannot specify both File and Files")
+			return
+		}
+	}
+
+	var response []byte
+	if len(files) > 0 {
+		body := &bytes.Buffer{}
+		bodywriter := multipart.NewWriter(body)
+
+		var payload []byte
+		payload, err = json.Marshal(data)
+		if err != nil {
+			return
+		}
+
+		var p io.Writer
+
+		h := make(textproto.MIMEHeader)
+		h.Set("Content-Disposition", `form-data; name="payload_json"`)
+		h.Set("Content-Type", "application/json")
+
+		p, err = bodywriter.CreatePart(h)
+		if err != nil {
+			return
+		}
+
+		if _, err = p.Write(payload); err != nil {
+			return
+		}
+
+		for i, file := range files {
+			h := make(textproto.MIMEHeader)
+			h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="file%d"; filename="%s"`, i, quoteEscaper.Replace(file.Name)))
+			contentType := file.ContentType
+			if contentType == "" {
+				contentType = "application/octet-stream"
+			}
+			h.Set("Content-Type", contentType)
+
+			p, err = bodywriter.CreatePart(h)
+			if err != nil {
+				return
+			}
+
+			if _, err = io.Copy(p, file.Reader); err != nil {
+				return
+			}
+		}
+
+		err = bodywriter.Close()
+		if err != nil {
+			return
+		}
+
+		response, err = s.request("POST", endpoint, bodywriter.FormDataContentType(), body.Bytes(), endpoint, 0)
+	} else {
+		response, err = s.RequestWithBucketID("POST", endpoint, data, endpoint)
+	}
 	if err != nil {
 		return
 	}
@@ -1234,55 +1416,42 @@ func (s *Session) channelMessageSend(channelID, content string, tts bool) (st *M
 	return
 }
 
-// ChannelMessageSend sends a message to the given channel.
-// channelID : The ID of a Channel.
-// content   : The message to send.
-func (s *Session) ChannelMessageSend(channelID string, content string) (st *Message, err error) {
-
-	return s.channelMessageSend(channelID, content, false)
-}
-
 // ChannelMessageSendTTS sends a message to the given channel with Text to Speech.
 // channelID : The ID of a Channel.
 // content   : The message to send.
-func (s *Session) ChannelMessageSendTTS(channelID string, content string) (st *Message, err error) {
-
-	return s.channelMessageSend(channelID, content, true)
+func (s *Session) ChannelMessageSendTTS(channelID string, content string) (*Message, error) {
+	return s.ChannelMessageSendComplex(channelID, &MessageSend{
+		Content: content,
+		Tts:     true,
+	})
 }
 
-// ChannelMessageSendEmbed sends a message to the given channel with embedded data (bot only).
+// ChannelMessageSendEmbed sends a message to the given channel with embedded data.
 // channelID : The ID of a Channel.
 // embed     : The embed data to send.
-func (s *Session) ChannelMessageSendEmbed(channelID string, embed *MessageEmbed) (st *Message, err error) {
-	if embed != nil && embed.Type == "" {
-		embed.Type = "rich"
-	}
-
-	data := struct {
-		Embed *MessageEmbed `json:"embed"`
-	}{embed}
-
-	// Send the message to the given channel
-	response, err := s.RequestWithBucketID("POST", EndpointChannelMessages(channelID), data, EndpointChannelMessages(channelID))
-	if err != nil {
-		return
-	}
-
-	err = unmarshal(response, &st)
-	return
+func (s *Session) ChannelMessageSendEmbed(channelID string, embed *MessageEmbed) (*Message, error) {
+	return s.ChannelMessageSendComplex(channelID, &MessageSend{
+		Embed: embed,
+	})
 }
 
 // ChannelMessageEdit edits an existing message, replacing it entirely with
 // the given content.
-// channeld  : The ID of a Channel
-// messageID : the ID of a Message
-func (s *Session) ChannelMessageEdit(channelID, messageID, content string) (st *Message, err error) {
+// channelID  : The ID of a Channel
+// messageID  : The ID of a Message
+// content    : The contents of the message
+func (s *Session) ChannelMessageEdit(channelID, messageID, content string) (*Message, error) {
+	return s.ChannelMessageEditComplex(NewMessageEdit(channelID, messageID).SetContent(content))
+}
 
-	data := struct {
-		Content string `json:"content"`
-	}{content}
+// ChannelMessageEditComplex edits an existing message, replacing it entirely with
+// the given MessageEdit struct
+func (s *Session) ChannelMessageEditComplex(m *MessageEdit) (st *Message, err error) {
+	if m.Embed != nil && m.Embed.Type == "" {
+		m.Embed.Type = "rich"
+	}
 
-	response, err := s.RequestWithBucketID("PATCH", EndpointChannelMessage(channelID, messageID), data, EndpointChannelMessage(channelID, ""))
+	response, err := s.RequestWithBucketID("PATCH", EndpointChannelMessage(m.Channel, m.ID), m, EndpointChannelMessage(m.Channel, ""))
 	if err != nil {
 		return
 	}
@@ -1291,26 +1460,12 @@ func (s *Session) ChannelMessageEdit(channelID, messageID, content string) (st *
 	return
 }
 
-// ChannelMessageEditEmbed edits an existing message with embedded data (bot only).
+// ChannelMessageEditEmbed edits an existing message with embedded data.
 // channelID : The ID of a Channel
 // messageID : The ID of a Message
 // embed     : The embed data to send
-func (s *Session) ChannelMessageEditEmbed(channelID, messageID string, embed *MessageEmbed) (st *Message, err error) {
-	if embed != nil && embed.Type == "" {
-		embed.Type = "rich"
-	}
-
-	data := struct {
-		Embed *MessageEmbed `json:"embed"`
-	}{embed}
-
-	response, err := s.RequestWithBucketID("PATCH", EndpointChannelMessage(channelID, messageID), data, EndpointChannelMessage(channelID, ""))
-	if err != nil {
-		return
-	}
-
-	err = unmarshal(response, &st)
-	return
+func (s *Session) ChannelMessageEditEmbed(channelID, messageID string, embed *MessageEmbed) (*Message, error) {
+	return s.ChannelMessageEditComplex(NewMessageEdit(channelID, messageID).SetEmbed(embed))
 }
 
 // ChannelMessageDelete deletes a message from the Channel.
@@ -1385,48 +1540,18 @@ func (s *Session) ChannelMessagesPinned(channelID string) (st []*Message, err er
 // channelID : The ID of a Channel.
 // name: The name of the file.
 // io.Reader : A reader for the file contents.
-func (s *Session) ChannelFileSend(channelID, name string, r io.Reader) (st *Message, err error) {
-	return s.ChannelFileSendWithMessage(channelID, "", name, r)
+func (s *Session) ChannelFileSend(channelID, name string, r io.Reader) (*Message, error) {
+	return s.ChannelMessageSendComplex(channelID, &MessageSend{File: &File{Name: name, Reader: r}})
 }
 
 // ChannelFileSendWithMessage sends a file to the given channel with an message.
+// DEPRECATED. Use ChannelMessageSendComplex instead.
 // channelID : The ID of a Channel.
 // content: Optional Message content.
 // name: The name of the file.
 // io.Reader : A reader for the file contents.
-func (s *Session) ChannelFileSendWithMessage(channelID, content string, name string, r io.Reader) (st *Message, err error) {
-
-	body := &bytes.Buffer{}
-	bodywriter := multipart.NewWriter(body)
-
-	if len(content) != 0 {
-		if err := bodywriter.WriteField("content", content); err != nil {
-			return nil, err
-		}
-	}
-
-	writer, err := bodywriter.CreateFormFile("file", name)
-	if err != nil {
-		return nil, err
-	}
-
-	_, err = io.Copy(writer, r)
-	if err != nil {
-		return
-	}
-
-	err = bodywriter.Close()
-	if err != nil {
-		return
-	}
-
-	response, err := s.request("POST", EndpointChannelMessages(channelID), bodywriter.FormDataContentType(), body.Bytes(), EndpointChannelMessages(channelID), 0)
-	if err != nil {
-		return
-	}
-
-	err = unmarshal(response, &st)
-	return
+func (s *Session) ChannelFileSendWithMessage(channelID, content string, name string, r io.Reader) (*Message, error) {
+	return s.ChannelMessageSendComplex(channelID, &MessageSend{File: &File{Name: name, Reader: r}, Content: content})
 }
 
 // ChannelInvites returns an array of Invite structures for the given channel
@@ -1563,7 +1688,7 @@ func (s *Session) VoiceICE() (st *VoiceICE, err error) {
 // Functions specific to Discord Websockets
 // ------------------------------------------------------------------------------------------------
 
-// Gateway returns the a websocket Gateway address
+// Gateway returns the websocket Gateway address
 func (s *Session) Gateway() (gateway string, err error) {
 
 	response, err := s.RequestWithBucketID("GET", EndpointGateway, nil, EndpointGateway)
@@ -1591,6 +1716,28 @@ func (s *Session) Gateway() (gateway string, err error) {
 	return
 }
 
+// GatewayBot returns the websocket Gateway address and the recommended number of shards
+func (s *Session) GatewayBot() (st *GatewayBotResponse, err error) {
+
+	response, err := s.RequestWithBucketID("GET", EndpointGatewayBot, nil, EndpointGatewayBot)
+	if err != nil {
+		return
+	}
+
+	err = unmarshal(response, &st)
+	if err != nil {
+		return
+	}
+
+	// Ensure the gateway always has a trailing slash.
+	// MacOS will fail to connect if we add query params without a trailing slash on the base domain.
+	if !strings.HasSuffix(st.URL, "/") {
+		st.URL += "/"
+	}
+
+	return
+}
+
 // Functions specific to Webhooks
 
 // WebhookCreate returns a new Webhook.
@@ -1716,14 +1863,9 @@ func (s *Session) WebhookEditWithToken(webhookID, token, name, avatar string) (s
 
 // WebhookDelete deletes a webhook for a given ID
 // webhookID: The ID of a webhook.
-func (s *Session) WebhookDelete(webhookID string) (st *Webhook, err error) {
+func (s *Session) WebhookDelete(webhookID string) (err error) {
 
-	body, err := s.RequestWithBucketID("DELETE", EndpointWebhook(webhookID), nil, EndpointWebhooks)
-	if err != nil {
-		return
-	}
-
-	err = unmarshal(body, &st)
+	_, err = s.RequestWithBucketID("DELETE", EndpointWebhook(webhookID), nil, EndpointWebhooks)
 
 	return
 }
@@ -1781,6 +1923,16 @@ func (s *Session) MessageReactionRemove(channelID, messageID, emojiID, userID st
 	return err
 }
 
+// MessageReactionsRemoveAll deletes all reactions from a message
+// channelID : The channel ID
+// messageID : The message ID.
+func (s *Session) MessageReactionsRemoveAll(channelID, messageID string) error {
+
+	_, err := s.RequestWithBucketID("DELETE", EndpointMessageReactionsAll(channelID, messageID), nil, EndpointMessageReactionsAll(channelID, messageID))
+
+	return err
+}
+
 // MessageReactions gets all the users reactions for a specific emoji.
 // channelID : The channel ID.
 // messageID : The message ID.
@@ -1808,6 +1960,20 @@ func (s *Session) MessageReactions(channelID, messageID, emojiID string, limit i
 	return
 }
 
+// ------------------------------------------------------------------------------------------------
+// Functions specific to user notes
+// ------------------------------------------------------------------------------------------------
+
+// UserNoteSet sets the note for a specific user.
+func (s *Session) UserNoteSet(userID string, message string) (err error) {
+	data := struct {
+		Note string `json:"note"`
+	}{message}
+
+	_, err = s.RequestWithBucketID("PUT", EndpointUserNotes(userID), data, EndpointUserNotes(""))
+	return
+}
+
 // ------------------------------------------------------------------------------------------------
 // Functions specific to Discord Relationships (Friends list)
 // ------------------------------------------------------------------------------------------------

vendor/github.com/bwmarrin/discordgo/state.go

@@ -14,11 +14,16 @@ package discordgo
 
 import (
 	"errors"
+	"sort"
 	"sync"
 )
 
 // ErrNilState is returned when the state is nil.
-var ErrNilState = errors.New("State not instantiated, please use discordgo.New() or assign Session.State.")
+var ErrNilState = errors.New("state not instantiated, please use discordgo.New() or assign Session.State")
+
+// ErrStateNotFound is returned when the state cache
+// requested is not found
+var ErrStateNotFound = errors.New("state cache not found")
 
 // A State contains the current known state.
 // As discord sends this in a READY blob, it seems reasonable to simply
@@ -33,9 +38,11 @@ type State struct {
 	TrackMembers    bool
 	TrackRoles      bool
 	TrackVoice      bool
+	TrackPresences  bool
 
 	guildMap   map[string]*Guild
 	channelMap map[string]*Channel
+	memberMap  map[string]map[string]*Member
 }
 
 // NewState creates an empty state.
@@ -45,16 +52,26 @@ func NewState() *State {
 			PrivateChannels: []*Channel{},
 			Guilds:          []*Guild{},
 		},
-		TrackChannels: true,
-		TrackEmojis:   true,
-		TrackMembers:  true,
-		TrackRoles:    true,
-		TrackVoice:    true,
-		guildMap:      make(map[string]*Guild),
-		channelMap:    make(map[string]*Channel),
+		TrackChannels:  true,
+		TrackEmojis:    true,
+		TrackMembers:   true,
+		TrackRoles:     true,
+		TrackVoice:     true,
+		TrackPresences: true,
+		guildMap:       make(map[string]*Guild),
+		channelMap:     make(map[string]*Channel),
+		memberMap:      make(map[string]map[string]*Member),
 	}
 }
 
+func (s *State) createMemberMap(guild *Guild) {
+	members := make(map[string]*Member)
+	for _, m := range guild.Members {
+		members[m.User.ID] = m
+	}
+	s.memberMap[guild.ID] = members
+}
+
 // GuildAdd adds a guild to the current world state, or
 // updates it if it already exists.
 func (s *State) GuildAdd(guild *Guild) error {
@@ -70,6 +87,14 @@ func (s *State) GuildAdd(guild *Guild) error {
 		s.channelMap[c.ID] = c
 	}
 
+	// If this guild contains a new member slice, we must regenerate the member map so the pointers stay valid
+	if guild.Members != nil {
+		s.createMemberMap(guild)
+	} else if _, ok := s.memberMap[guild.ID]; !ok {
+		// Even if we have no new member slice, we still initialize the member map for this guild if it doesn't exist
+		s.memberMap[guild.ID] = make(map[string]*Member)
+	}
+
 	if g, ok := s.guildMap[guild.ID]; ok {
 		// We are about to replace `g` in the state with `guild`, but first we need to
 		// make sure we preserve any fields that the `guild` doesn't contain from `g`.
@@ -143,7 +168,108 @@ func (s *State) Guild(guildID string) (*Guild, error) {
 		return g, nil
 	}
 
-	return nil, errors.New("Guild not found.")
+	return nil, ErrStateNotFound
+}
+
+// PresenceAdd adds a presence to the current world state, or
+// updates it if it already exists.
+func (s *State) PresenceAdd(guildID string, presence *Presence) error {
+	if s == nil {
+		return ErrNilState
+	}
+
+	guild, err := s.Guild(guildID)
+	if err != nil {
+		return err
+	}
+
+	s.Lock()
+	defer s.Unlock()
+
+	for i, p := range guild.Presences {
+		if p.User.ID == presence.User.ID {
+			//guild.Presences[i] = presence
+
+			//Update status
+			guild.Presences[i].Game = presence.Game
+			guild.Presences[i].Roles = presence.Roles
+			if presence.Status != "" {
+				guild.Presences[i].Status = presence.Status
+			}
+			if presence.Nick != "" {
+				guild.Presences[i].Nick = presence.Nick
+			}
+
+			//Update the optionally sent user information
+			//ID Is a mandatory field so you should not need to check if it is empty
+			guild.Presences[i].User.ID = presence.User.ID
+
+			if presence.User.Avatar != "" {
+				guild.Presences[i].User.Avatar = presence.User.Avatar
+			}
+			if presence.User.Discriminator != "" {
+				guild.Presences[i].User.Discriminator = presence.User.Discriminator
+			}
+			if presence.User.Email != "" {
+				guild.Presences[i].User.Email = presence.User.Email
+			}
+			if presence.User.Token != "" {
+				guild.Presences[i].User.Token = presence.User.Token
+			}
+			if presence.User.Username != "" {
+				guild.Presences[i].User.Username = presence.User.Username
+			}
+
+			return nil
+		}
+	}
+
+	guild.Presences = append(guild.Presences, presence)
+	return nil
+}
+
+// PresenceRemove removes a presence from the current world state.
+func (s *State) PresenceRemove(guildID string, presence *Presence) error {
+	if s == nil {
+		return ErrNilState
+	}
+
+	guild, err := s.Guild(guildID)
+	if err != nil {
+		return err
+	}
+
+	s.Lock()
+	defer s.Unlock()
+
+	for i, p := range guild.Presences {
+		if p.User.ID == presence.User.ID {
+			guild.Presences = append(guild.Presences[:i], guild.Presences[i+1:]...)
+			return nil
+		}
+	}
+
+	return ErrStateNotFound
+}
+
+// Presence gets a presence by ID from a guild.
+func (s *State) Presence(guildID, userID string) (*Presence, error) {
+	if s == nil {
+		return nil, ErrNilState
+	}
+
+	guild, err := s.Guild(guildID)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, p := range guild.Presences {
+		if p.User.ID == userID {
+			return p, nil
+		}
+	}
+
+	return nil, ErrStateNotFound
 }
 
 // TODO: Consider moving Guild state update methods onto *Guild.
@@ -163,14 +289,19 @@ func (s *State) MemberAdd(member *Member) error {
 	s.Lock()
 	defer s.Unlock()
 
-	for i, m := range guild.Members {
-		if m.User.ID == member.User.ID {
-			guild.Members[i] = member
-			return nil
-		}
+	members, ok := s.memberMap[member.GuildID]
+	if !ok {
+		return ErrStateNotFound
+	}
+
+	m, ok := members[member.User.ID]
+	if !ok {
+		members[member.User.ID] = member
+		guild.Members = append(guild.Members, member)
+	} else {
+		*m = *member // Update the actual data, which will also update the member pointer in the slice
 	}
 
-	guild.Members = append(guild.Members, member)
 	return nil
 }
 
@@ -188,6 +319,17 @@ func (s *State) MemberRemove(member *Member) error {
 	s.Lock()
 	defer s.Unlock()
 
+	members, ok := s.memberMap[member.GuildID]
+	if !ok {
+		return ErrStateNotFound
+	}
+
+	_, ok = members[member.User.ID]
+	if !ok {
+		return ErrStateNotFound
+	}
+	delete(members, member.User.ID)
+
 	for i, m := range guild.Members {
 		if m.User.ID == member.User.ID {
 			guild.Members = append(guild.Members[:i], guild.Members[i+1:]...)
@@ -195,7 +337,7 @@ func (s *State) MemberRemove(member *Member) error {
 		}
 	}
 
-	return errors.New("Member not found.")
+	return ErrStateNotFound
 }
 
 // Member gets a member by ID from a guild.
@@ -204,21 +346,20 @@ func (s *State) Member(guildID, userID string) (*Member, error) {
 		return nil, ErrNilState
 	}
 
-	guild, err := s.Guild(guildID)
-	if err != nil {
-		return nil, err
-	}
-
 	s.RLock()
 	defer s.RUnlock()
 
-	for _, m := range guild.Members {
-		if m.User.ID == userID {
-			return m, nil
-		}
+	members, ok := s.memberMap[guildID]
+	if !ok {
+		return nil, ErrStateNotFound
 	}
 
-	return nil, errors.New("Member not found.")
+	m, ok := members[userID]
+	if ok {
+		return m, nil
+	}
+
+	return nil, ErrStateNotFound
 }
 
 // RoleAdd adds a role to the current world state, or
@@ -268,7 +409,7 @@ func (s *State) RoleRemove(guildID, roleID string) error {
 		}
 	}
 
-	return errors.New("Role not found.")
+	return ErrStateNotFound
 }
 
 // Role gets a role by ID from a guild.
@@ -291,10 +432,10 @@ func (s *State) Role(guildID, roleID string) (*Role, error) {
 		}
 	}
 
-	return nil, errors.New("Role not found.")
+	return nil, ErrStateNotFound
 }
 
-// ChannelAdd adds a guild to the current world state, or
+// ChannelAdd adds a channel to the current world state, or
 // updates it if it already exists.
 // Channels may exist either as PrivateChannels or inside
 // a guild.
@@ -319,12 +460,12 @@ func (s *State) ChannelAdd(channel *Channel) error {
 		return nil
 	}
 
-	if channel.IsPrivate {
+	if channel.Type == ChannelTypeDM || channel.Type == ChannelTypeGroupDM {
 		s.PrivateChannels = append(s.PrivateChannels, channel)
 	} else {
 		guild, ok := s.guildMap[channel.GuildID]
 		if !ok {
-			return errors.New("Guild for channel not found.")
+			return ErrStateNotFound
 		}
 
 		guild.Channels = append(guild.Channels, channel)
@@ -346,7 +487,7 @@ func (s *State) ChannelRemove(channel *Channel) error {
 		return err
 	}
 
-	if channel.IsPrivate {
+	if channel.Type == ChannelTypeDM || channel.Type == ChannelTypeGroupDM {
 		s.Lock()
 		defer s.Unlock()
 
@@ -403,7 +544,7 @@ func (s *State) Channel(channelID string) (*Channel, error) {
 		return c, nil
 	}
 
-	return nil, errors.New("Channel not found.")
+	return nil, ErrStateNotFound
 }
 
 // Emoji returns an emoji for a guild and emoji id.
@@ -426,7 +567,7 @@ func (s *State) Emoji(guildID, emojiID string) (*Emoji, error) {
 		}
 	}
 
-	return nil, errors.New("Emoji not found.")
+	return nil, ErrStateNotFound
 }
 
 // EmojiAdd adds an emoji to the current world state.
@@ -523,7 +664,12 @@ func (s *State) MessageRemove(message *Message) error {
 		return ErrNilState
 	}
 
-	c, err := s.Channel(message.ChannelID)
+	return s.messageRemoveByID(message.ChannelID, message.ID)
+}
+
+// messageRemoveByID removes a message by channelID and messageID from the world state.
+func (s *State) messageRemoveByID(channelID, messageID string) error {
+	c, err := s.Channel(channelID)
 	if err != nil {
 		return err
 	}
@@ -532,13 +678,13 @@ func (s *State) MessageRemove(message *Message) error {
 	defer s.Unlock()
 
 	for i, m := range c.Messages {
-		if m.ID == message.ID {
+		if m.ID == messageID {
 			c.Messages = append(c.Messages[:i], c.Messages[i+1:]...)
 			return nil
 		}
 	}
 
-	return errors.New("Message not found.")
+	return ErrStateNotFound
 }
 
 func (s *State) voiceStateUpdate(update *VoiceStateUpdate) error {
@@ -592,7 +738,7 @@ func (s *State) Message(channelID, messageID string) (*Message, error) {
 		}
 	}
 
-	return nil, errors.New("Message not found.")
+	return nil, ErrStateNotFound
 }
 
 // OnReady takes a Ready event and updates all internal state.
@@ -608,10 +754,9 @@ func (s *State) onReady(se *Session, r *Ready) (err error) {
 	// if state is disabled, store the bare essentials.
 	if !se.StateEnabled {
 		ready := Ready{
-			Version:           r.Version,
-			SessionID:         r.SessionID,
-			HeartbeatInterval: r.HeartbeatInterval,
-			User:              r.User,
+			Version:   r.Version,
+			SessionID: r.SessionID,
+			User:      r.User,
 		}
 
 		s.Ready = ready
@@ -623,6 +768,7 @@ func (s *State) onReady(se *Session, r *Ready) (err error) {
 
 	for _, g := range s.Guilds {
 		s.guildMap[g.ID] = g
+		s.createMemberMap(g)
 
 		for _, c := range g.Channels {
 			s.channelMap[c.ID] = c
@@ -636,8 +782,8 @@ func (s *State) onReady(se *Session, r *Ready) (err error) {
 	return nil
 }
 
-// onInterface handles all events related to states.
-func (s *State) onInterface(se *Session, i interface{}) (err error) {
+// OnInterface handles all events related to states.
+func (s *State) OnInterface(se *Session, i interface{}) (err error) {
 	if s == nil {
 		return ErrNilState
 	}
@@ -710,10 +856,55 @@ func (s *State) onInterface(se *Session, i interface{}) (err error) {
 		if s.MaxMessageCount != 0 {
 			err = s.MessageRemove(t.Message)
 		}
+	case *MessageDeleteBulk:
+		if s.MaxMessageCount != 0 {
+			for _, mID := range t.Messages {
+				s.messageRemoveByID(t.ChannelID, mID)
+			}
+		}
 	case *VoiceStateUpdate:
 		if s.TrackVoice {
 			err = s.voiceStateUpdate(t)
 		}
+	case *PresenceUpdate:
+		if s.TrackPresences {
+			s.PresenceAdd(t.GuildID, &t.Presence)
+		}
+		if s.TrackMembers {
+			if t.Status == StatusOffline {
+				return
+			}
+
+			var m *Member
+			m, err = s.Member(t.GuildID, t.User.ID)
+
+			if err != nil {
+				// Member not found; this is a user coming online
+				m = &Member{
+					GuildID: t.GuildID,
+					Nick:    t.Nick,
+					User:    t.User,
+					Roles:   t.Roles,
+				}
+
+			} else {
+
+				if t.Nick != "" {
+					m.Nick = t.Nick
+				}
+
+				if t.User.Username != "" {
+					m.User.Username = t.User.Username
+				}
+
+				// PresenceUpdates always contain a list of roles, so there's no need to check for an empty list here
+				m.Roles = t.Roles
+
+			}
+
+			err = s.MemberAdd(m)
+		}
+
 	}
 
 	return
@@ -747,48 +938,46 @@ func (s *State) UserChannelPermissions(userID, channelID string) (apermissions i
 		return
 	}
 
-	for _, role := range guild.Roles {
-		if role.ID == guild.ID {
-			apermissions |= role.Permissions
-			break
-		}
+	return memberPermissions(guild, channel, member), nil
+}
+
+// UserColor returns the color of a user in a channel.
+// While colors are defined at a Guild level, determining for a channel is more useful in message handlers.
+// 0 is returned in cases of error, which is the color of @everyone.
+// userID    : The ID of the user to calculate the color for.
+// channelID   : The ID of the channel to calculate the color for.
+func (s *State) UserColor(userID, channelID string) int {
+	if s == nil {
+		return 0
 	}
 
-	for _, role := range guild.Roles {
+	channel, err := s.Channel(channelID)
+	if err != nil {
+		return 0
+	}
+
+	guild, err := s.Guild(channel.GuildID)
+	if err != nil {
+		return 0
+	}
+
+	member, err := s.Member(guild.ID, userID)
+	if err != nil {
+		return 0
+	}
+
+	roles := Roles(guild.Roles)
+	sort.Sort(roles)
+
+	for _, role := range roles {
 		for _, roleID := range member.Roles {
 			if role.ID == roleID {
-				apermissions |= role.Permissions
-				break
+				if role.Color != 0 {
+					return role.Color
+				}
 			}
 		}
 	}
 
-	if apermissions&PermissionAdministrator > 0 {
-		apermissions |= PermissionAll
-	}
-
-	// Member overwrites can override role overrides, so do two passes
-	for _, overwrite := range channel.PermissionOverwrites {
-		for _, roleID := range member.Roles {
-			if overwrite.Type == "role" && roleID == overwrite.ID {
-				apermissions &= ^overwrite.Deny
-				apermissions |= overwrite.Allow
-				break
-			}
-		}
-	}
-
-	for _, overwrite := range channel.PermissionOverwrites {
-		if overwrite.Type == "member" && overwrite.ID == userID {
-			apermissions &= ^overwrite.Deny
-			apermissions |= overwrite.Allow
-			break
-		}
-	}
-
-	if apermissions&PermissionAdministrator > 0 {
-		apermissions |= PermissionAllChannel
-	}
-
-	return
+	return 0
 }

vendor/github.com/bwmarrin/discordgo/structs.go

@@ -13,6 +13,7 @@ package discordgo
 
 import (
 	"encoding/json"
+	"net/http"
 	"strconv"
 	"sync"
 	"time"
@@ -28,6 +29,7 @@ type Session struct {
 
 	// Authentication token for this session
 	Token string
+	MFA   bool
 
 	// Debug for printing JSON request/responses
 	Debug    bool // Deprecated, will be removed.
@@ -48,6 +50,10 @@ type Session struct {
 	// active guilds and the members of the guilds.
 	StateEnabled bool
 
+	// Whether or not to call event handlers synchronously.
+	// e.g false = launch event handlers in their own goroutines.
+	SyncEvents bool
+
 	// Exposed but should not be modified by User.
 
 	// Whether the Data Websocket is ready
@@ -73,6 +79,12 @@ type Session struct {
 	// StateEnabled is true.
 	State *State
 
+	// The http client used for REST requests
+	Client *http.Client
+
+	// Stores the last HeartbeatAck that was recieved (in UTC)
+	LastHeartbeatAck time.Time
+
 	// Event handlers
 	handlersMu   sync.RWMutex
 	handlers     map[string][]*eventHandlerInstance
@@ -88,7 +100,7 @@ type Session struct {
 	ratelimiter *RateLimiter
 
 	// sequence tracks the current gateway api websocket sequence number
-	sequence int
+	sequence *int64
 
 	// stores sessions current Discord Gateway
 	gateway string
@@ -100,12 +112,6 @@ type Session struct {
 	wsMutex sync.Mutex
 }
 
-type rateLimitMutex struct {
-	sync.Mutex
-	url map[string]*sync.Mutex
-	// bucket map[string]*sync.Mutex // TODO :)
-}
-
 // A VoiceRegion stores data for a specific voice region server.
 type VoiceRegion struct {
 	ID       string `json:"id"`
@@ -142,18 +148,30 @@ type Invite struct {
 	Temporary bool      `json:"temporary"`
 }
 
+// ChannelType is the type of a Channel
+type ChannelType int
+
+// Block contains known ChannelType values
+const (
+	ChannelTypeGuildText ChannelType = iota
+	ChannelTypeDM
+	ChannelTypeGuildVoice
+	ChannelTypeGroupDM
+	ChannelTypeGuildCategory
+)
+
 // A Channel holds all data related to an individual Discord channel.
 type Channel struct {
 	ID                   string                 `json:"id"`
 	GuildID              string                 `json:"guild_id"`
 	Name                 string                 `json:"name"`
 	Topic                string                 `json:"topic"`
-	Type                 string                 `json:"type"`
+	Type                 ChannelType            `json:"type"`
 	LastMessageID        string                 `json:"last_message_id"`
+	NSFW                 bool                   `json:"nsfw"`
 	Position             int                    `json:"position"`
 	Bitrate              int                    `json:"bitrate"`
-	IsPrivate            bool                   `json:"is_private"`
-	Recipient            *User                  `json:"recipient"`
+	Recipients           []*User                `json:"recipient"`
 	Messages             []*Message             `json:"-"`
 	PermissionOverwrites []*PermissionOverwrite `json:"permission_overwrites"`
 }
@@ -235,9 +253,15 @@ type UserGuild struct {
 
 // A GuildParams stores all the data needed to update discord guild settings
 type GuildParams struct {
-	Name              string             `json:"name"`
-	Region            string             `json:"region"`
-	VerificationLevel *VerificationLevel `json:"verification_level"`
+	Name                        string             `json:"name,omitempty"`
+	Region                      string             `json:"region,omitempty"`
+	VerificationLevel           *VerificationLevel `json:"verification_level,omitempty"`
+	DefaultMessageNotifications int                `json:"default_message_notifications,omitempty"` // TODO: Separate type?
+	AfkChannelID                string             `json:"afk_channel_id,omitempty"`
+	AfkTimeout                  int                `json:"afk_timeout,omitempty"`
+	Icon                        string             `json:"icon,omitempty"`
+	OwnerID                     string             `json:"owner_id,omitempty"`
+	Splash                      string             `json:"splash,omitempty"`
 }
 
 // A Role stores information about Discord guild member roles.
@@ -252,6 +276,21 @@ type Role struct {
 	Permissions int    `json:"permissions"`
 }
 
+// Roles are a collection of Role
+type Roles []*Role
+
+func (r Roles) Len() int {
+	return len(r)
+}
+
+func (r Roles) Less(i, j int) bool {
+	return r[i].Position > r[j].Position
+}
+
+func (r Roles) Swap(i, j int) {
+	r[i], r[j] = r[j], r[i]
+}
+
 // A VoiceState stores the voice states of Guilds
 type VoiceState struct {
 	UserID    string `json:"user_id"`
@@ -272,19 +311,20 @@ type Presence struct {
 	Game   *Game    `json:"game"`
 	Nick   string   `json:"nick"`
 	Roles  []string `json:"roles"`
+	Since  *int     `json:"since"`
 }
 
 // A Game struct holds the name of the "playing .." game for a user
 type Game struct {
 	Name string `json:"name"`
 	Type int    `json:"type"`
-	URL  string `json:"url"`
+	URL  string `json:"url,omitempty"`
 }
 
 // UnmarshalJSON unmarshals json to Game struct
 func (g *Game) UnmarshalJSON(bytes []byte) error {
 	temp := &struct {
-		Name string          `json:"name"`
+		Name json.Number     `json:"name"`
 		Type json.RawMessage `json:"type"`
 		URL  string          `json:"url"`
 	}{}
@@ -292,8 +332,8 @@ func (g *Game) UnmarshalJSON(bytes []byte) error {
 	if err != nil {
 		return err
 	}
-	g.Name = temp.Name
 	g.URL = temp.URL
+	g.Name = temp.Name.String()
 
 	if temp.Type != nil {
 		err = json.Unmarshal(temp.Type, &g.Type)
@@ -324,19 +364,6 @@ type Member struct {
 	Roles    []string `json:"roles"`
 }
 
-// A User stores all data for an individual Discord user.
-type User struct {
-	ID            string `json:"id"`
-	Email         string `json:"email"`
-	Username      string `json:"username"`
-	Avatar        string `json:"Avatar"`
-	Discriminator string `json:"discriminator"`
-	Token         string `json:"token"`
-	Verified      bool   `json:"verified"`
-	MFAEnabled    bool   `json:"mfa_enabled"`
-	Bot           bool   `json:"bot"`
-}
-
 // A Settings stores data for a specific users Discord client settings.
 type Settings struct {
 	RenderEmbeds           bool               `json:"render_embeds"`
@@ -502,6 +529,12 @@ type MessageReaction struct {
 	ChannelID string `json:"channel_id"`
 }
 
+// GatewayBotResponse stores the data for the gateway/bot response
+type GatewayBotResponse struct {
+	URL    string `json:"url"`
+	Shards int    `json:"shards"`
+}
+
 // Constants for the different bit offsets of text channel permissions
 const (
 	PermissionReadMessages = 1 << (iota + 10)
@@ -542,6 +575,8 @@ const (
 	PermissionAdministrator
 	PermissionManageChannels
 	PermissionManageServer
+	PermissionAddReactions
+	PermissionViewAuditLogs
 
 	PermissionAllText = PermissionReadMessages |
 		PermissionSendMessages |
@@ -561,9 +596,65 @@ const (
 		PermissionAllVoice |
 		PermissionCreateInstantInvite |
 		PermissionManageRoles |
-		PermissionManageChannels
+		PermissionManageChannels |
+		PermissionAddReactions |
+		PermissionViewAuditLogs
 	PermissionAll = PermissionAllChannel |
 		PermissionKickMembers |
 		PermissionBanMembers |
-		PermissionManageServer
+		PermissionManageServer |
+		PermissionAdministrator
+)
+
+// Block contains Discord JSON Error Response codes
+const (
+	ErrCodeUnknownAccount     = 10001
+	ErrCodeUnknownApplication = 10002
+	ErrCodeUnknownChannel     = 10003
+	ErrCodeUnknownGuild       = 10004
+	ErrCodeUnknownIntegration = 10005
+	ErrCodeUnknownInvite      = 10006
+	ErrCodeUnknownMember      = 10007
+	ErrCodeUnknownMessage     = 10008
+	ErrCodeUnknownOverwrite   = 10009
+	ErrCodeUnknownProvider    = 10010
+	ErrCodeUnknownRole        = 10011
+	ErrCodeUnknownToken       = 10012
+	ErrCodeUnknownUser        = 10013
+	ErrCodeUnknownEmoji       = 10014
+
+	ErrCodeBotsCannotUseEndpoint  = 20001
+	ErrCodeOnlyBotsCanUseEndpoint = 20002
+
+	ErrCodeMaximumGuildsReached     = 30001
+	ErrCodeMaximumFriendsReached    = 30002
+	ErrCodeMaximumPinsReached       = 30003
+	ErrCodeMaximumGuildRolesReached = 30005
+	ErrCodeTooManyReactions         = 30010
+
+	ErrCodeUnauthorized = 40001
+
+	ErrCodeMissingAccess                             = 50001
+	ErrCodeInvalidAccountType                        = 50002
+	ErrCodeCannotExecuteActionOnDMChannel            = 50003
+	ErrCodeEmbedCisabled                             = 50004
+	ErrCodeCannotEditFromAnotherUser                 = 50005
+	ErrCodeCannotSendEmptyMessage                    = 50006
+	ErrCodeCannotSendMessagesToThisUser              = 50007
+	ErrCodeCannotSendMessagesInVoiceChannel          = 50008
+	ErrCodeChannelVerificationLevelTooHigh           = 50009
+	ErrCodeOAuth2ApplicationDoesNotHaveBot           = 50010
+	ErrCodeOAuth2ApplicationLimitReached             = 50011
+	ErrCodeInvalidOAuthState                         = 50012
+	ErrCodeMissingPermissions                        = 50013
+	ErrCodeInvalidAuthenticationToken                = 50014
+	ErrCodeNoteTooLong                               = 50015
+	ErrCodeTooFewOrTooManyMessagesToDelete           = 50016
+	ErrCodeCanOnlyPinMessageToOriginatingChannel     = 50019
+	ErrCodeCannotExecuteActionOnSystemMessage        = 50021
+	ErrCodeMessageProvidedTooOldForBulkDelete        = 50034
+	ErrCodeInvalidFormBody                           = 50035
+	ErrCodeInviteAcceptedToGuildApplicationsBotNotIn = 50036
+
+	ErrCodeReactionBlocked = 90001
 )

vendor/github.com/bwmarrin/discordgo/tools/cmd/eventhandlers/main.go

@@ -37,18 +37,18 @@ type {{privateName .}}EventHandler func(*Session, *{{.}})
 func (eh {{privateName .}}EventHandler) Type() string {
   return {{privateName .}}EventType
 }
-
+{{if isDiscordEvent .}}
 // New returns a new instance of {{.}}.
 func (eh {{privateName .}}EventHandler) New() interface{} {
   return &{{.}}{}
-}
-
+}{{end}}
 // Handle is the handler for {{.}} events.
 func (eh {{privateName .}}EventHandler) Handle(s *Session, i interface{}) {
   if t, ok := i.(*{{.}}); ok {
     eh(s, t)
   }
 }
+
 {{end}}
 func handlerForInterface(handler interface{}) EventHandler {
   switch v := handler.(type) {
@@ -60,6 +60,7 @@ func handlerForInterface(handler interface{}) EventHandler {
 
   return nil
 }
+
 func init() { {{range .}}{{if isDiscordEvent .}}
   registerInterfaceProvider({{privateName .}}EventHandler(nil)){{end}}{{end}}
 }

vendor/github.com/bwmarrin/discordgo/user.go

@@ -0,0 +1,42 @@
+package discordgo
+
+import (
+	"fmt"
+	"strings"
+)
+
+// A User stores all data for an individual Discord user.
+type User struct {
+	ID            string `json:"id"`
+	Email         string `json:"email"`
+	Username      string `json:"username"`
+	Avatar        string `json:"avatar"`
+	Discriminator string `json:"discriminator"`
+	Token         string `json:"token"`
+	Verified      bool   `json:"verified"`
+	MFAEnabled    bool   `json:"mfa_enabled"`
+	Bot           bool   `json:"bot"`
+}
+
+// String returns a unique identifier of the form username#discriminator
+func (u *User) String() string {
+	return fmt.Sprintf("%s#%s", u.Username, u.Discriminator)
+}
+
+// Mention return a string which mentions the user
+func (u *User) Mention() string {
+	return fmt.Sprintf("<@%s>", u.ID)
+}
+
+// AvatarURL returns a URL to the user's avatar.
+//		size:     The size of the user's avatar as a power of two
+func (u *User) AvatarURL(size string) string {
+	var URL string
+	if strings.HasPrefix(u.Avatar, "a_") {
+		URL = EndpointUserAvatarAnimated(u.ID, u.Avatar)
+	} else {
+		URL = EndpointUserAvatar(u.ID, u.Avatar)
+	}
+
+	return URL + "?size=" + size
+}

vendor/github.com/bwmarrin/discordgo/voice.go

@@ -15,7 +15,6 @@ import (
 	"fmt"
 	"log"
 	"net"
-	"runtime"
 	"strings"
 	"sync"
 	"time"
@@ -93,18 +92,22 @@ func (v *VoiceConnection) Speaking(b bool) (err error) {
 	}
 
 	if v.wsConn == nil {
-		return fmt.Errorf("No VoiceConnection websocket.")
+		return fmt.Errorf("no VoiceConnection websocket")
 	}
 
 	data := voiceSpeakingOp{5, voiceSpeakingData{b, 0}}
 	v.wsMutex.Lock()
 	err = v.wsConn.WriteJSON(data)
 	v.wsMutex.Unlock()
+
+	v.Lock()
+	defer v.Unlock()
 	if err != nil {
 		v.speaking = false
 		log.Println("Speaking() write json error:", err)
 		return
 	}
+
 	v.speaking = b
 
 	return
@@ -139,9 +142,9 @@ func (v *VoiceConnection) Disconnect() (err error) {
 	// Send a OP4 with a nil channel to disconnect
 	if v.sessionID != "" {
 		data := voiceChannelJoinOp{4, voiceChannelJoinData{&v.GuildID, nil, true, true}}
-		v.wsMutex.Lock()
+		v.session.wsMutex.Lock()
 		err = v.session.wsConn.WriteJSON(data)
-		v.wsMutex.Unlock()
+		v.session.wsMutex.Unlock()
 		v.sessionID = ""
 	}
 
@@ -149,7 +152,10 @@ func (v *VoiceConnection) Disconnect() (err error) {
 	v.Close()
 
 	v.log(LogInformational, "Deleting VoiceConnection %s", v.GuildID)
+
+	v.session.Lock()
 	delete(v.session.VoiceConnections, v.GuildID)
+	v.session.Unlock()
 
 	return
 }
@@ -185,7 +191,9 @@ func (v *VoiceConnection) Close() {
 
 		// To cleanly close a connection, a client should send a close
 		// frame and wait for the server to close the connection.
+		v.wsMutex.Lock()
 		err := v.wsConn.WriteMessage(websocket.CloseMessage, websocket.FormatCloseMessage(websocket.CloseNormalClosure, ""))
+		v.wsMutex.Unlock()
 		if err != nil {
 			v.log(LogError, "error closing websocket, %s", err)
 		}
@@ -246,12 +254,15 @@ func (v *VoiceConnection) waitUntilConnected() error {
 
 	i := 0
 	for {
-		if v.Ready {
+		v.RLock()
+		ready := v.Ready
+		v.RUnlock()
+		if ready {
 			return nil
 		}
 
 		if i > 10 {
-			return fmt.Errorf("Timeout waiting for voice.")
+			return fmt.Errorf("timeout waiting for voice")
 		}
 
 		time.Sleep(1 * time.Second)
@@ -282,7 +293,7 @@ func (v *VoiceConnection) open() (err error) {
 			break
 		}
 		if i > 20 { // only loop for up to 1 second total
-			return fmt.Errorf("Did not receive voice Session ID in time.")
+			return fmt.Errorf("did not receive voice Session ID in time")
 		}
 		time.Sleep(50 * time.Millisecond)
 		i++
@@ -409,8 +420,6 @@ func (v *VoiceConnection) onEvent(message []byte) {
 			go v.opusReceiver(v.udpConn, v.close, v.OpusRecv)
 		}
 
-		// Send the ready event
-		v.connected <- true
 		return
 
 	case 3: // HEARTBEAT response
@@ -418,6 +427,9 @@ func (v *VoiceConnection) onEvent(message []byte) {
 		return
 
 	case 4: // udp encryption secret key
+		v.Lock()
+		defer v.Unlock()
+
 		v.op4 = voiceOP4{}
 		if err := json.Unmarshal(e.RawData, &v.op4); err != nil {
 			v.log(LogError, "OP4 unmarshall error, %s, %s", err, string(e.RawData))
@@ -466,6 +478,7 @@ func (v *VoiceConnection) wsHeartbeat(wsConn *websocket.Conn, close <-chan struc
 
 	var err error
 	ticker := time.NewTicker(i * time.Millisecond)
+	defer ticker.Stop()
 	for {
 		v.log(LogDebug, "sending heartbeat packet")
 		v.wsMutex.Lock()
@@ -616,6 +629,7 @@ func (v *VoiceConnection) udpKeepAlive(udpConn *net.UDPConn, close <-chan struct
 	packet := make([]byte, 8)
 
 	ticker := time.NewTicker(i)
+	defer ticker.Stop()
 	for {
 
 		binary.LittleEndian.PutUint64(packet, sequence)
@@ -644,12 +658,16 @@ func (v *VoiceConnection) opusSender(udpConn *net.UDPConn, close <-chan struct{}
 		return
 	}
 
-	runtime.LockOSThread()
-
 	// VoiceConnection is now ready to receive audio packets
 	// TODO: this needs reviewed as I think there must be a better way.
+	v.Lock()
 	v.Ready = true
-	defer func() { v.Ready = false }()
+	v.Unlock()
+	defer func() {
+		v.Lock()
+		v.Ready = false
+		v.Unlock()
+	}()
 
 	var sequence uint16
 	var timestamp uint32
@@ -665,6 +683,7 @@ func (v *VoiceConnection) opusSender(udpConn *net.UDPConn, close <-chan struct{}
 
 	// start a send loop that loops until buf chan is closed
 	ticker := time.NewTicker(time.Millisecond * time.Duration(size/(rate/1000)))
+	defer ticker.Stop()
 	for {
 
 		// Get data from chan.  If chan is closed, return.
@@ -678,7 +697,10 @@ func (v *VoiceConnection) opusSender(udpConn *net.UDPConn, close <-chan struct{}
 			// else, continue loop
 		}
 
-		if !v.speaking {
+		v.RLock()
+		speaking := v.speaking
+		v.RUnlock()
+		if !speaking {
 			err := v.Speaking(true)
 			if err != nil {
 				v.log(LogError, "error sending speaking packet, %s", err)
@@ -691,7 +713,9 @@ func (v *VoiceConnection) opusSender(udpConn *net.UDPConn, close <-chan struct{}
 
 		// encrypt the opus data
 		copy(nonce[:], udpHeader)
+		v.RLock()
 		sendbuf := secretbox.Seal(udpHeader, recvbuf, &nonce, &v.op4.SecretKey)
+		v.RUnlock()
 
 		// block here until we're exactly at the right time :)
 		// Then send rtp audio packet to Discord over UDP
@@ -742,7 +766,6 @@ func (v *VoiceConnection) opusReceiver(udpConn *net.UDPConn, close <-chan struct
 		return
 	}
 
-	p := Packet{}
 	recvbuf := make([]byte, 1024)
 	var nonce [24]byte
 
@@ -773,11 +796,12 @@ func (v *VoiceConnection) opusReceiver(udpConn *net.UDPConn, close <-chan struct
 		}
 
 		// For now, skip anything except audio.
-		if rlen < 12 || recvbuf[0] != 0x80 {
+		if rlen < 12 || (recvbuf[0] != 0x80 && recvbuf[0] != 0x90) {
 			continue
 		}
 
 		// build a audio packet struct
+		p := Packet{}
 		p.Type = recvbuf[0:2]
 		p.Sequence = binary.BigEndian.Uint16(recvbuf[2:4])
 		p.Timestamp = binary.BigEndian.Uint32(recvbuf[4:8])
@@ -786,8 +810,17 @@ func (v *VoiceConnection) opusReceiver(udpConn *net.UDPConn, close <-chan struct
 		copy(nonce[:], recvbuf[0:12])
 		p.Opus, _ = secretbox.Open(nil, recvbuf[12:rlen], &nonce, &v.op4.SecretKey)
 
+		if len(p.Opus) > 8 && recvbuf[0] == 0x90 {
+			// Extension bit is set, first 8 bytes is the extended header
+			p.Opus = p.Opus[8:]
+		}
+
 		if c != nil {
-			c <- &p
+			select {
+			case c <- &p:
+			case <-close:
+				return
+			}
 		}
 	}
 }
@@ -837,6 +870,8 @@ func (v *VoiceConnection) reconnect() {
 			return
 		}
 
+		v.log(LogInformational, "error reconnecting to channel %s, %s", v.ChannelID, err)
+
 		// if the reconnect above didn't work lets just send a disconnect
 		// packet to reset things.
 		// Send a OP4 with a nil channel to disconnect
@@ -848,6 +883,5 @@ func (v *VoiceConnection) reconnect() {
 			v.log(LogError, "error sending disconnect packet, %s", err)
 		}
 
-		v.log(LogInformational, "error reconnecting to channel %s, %s", v.ChannelID, err)
 	}
 }

vendor/github.com/bwmarrin/discordgo/wsapi.go

@@ -15,21 +15,33 @@ import (
 	"compress/zlib"
 	"encoding/json"
 	"errors"
-	"fmt"
 	"io"
 	"net/http"
 	"runtime"
+	"sync/atomic"
 	"time"
 
 	"github.com/gorilla/websocket"
 )
 
+// ErrWSAlreadyOpen is thrown when you attempt to open
+// a websocket that already is open.
+var ErrWSAlreadyOpen = errors.New("web socket already opened")
+
+// ErrWSNotFound is thrown when you attempt to use a websocket
+// that doesn't exist
+var ErrWSNotFound = errors.New("no websocket connection exists")
+
+// ErrWSShardBounds is thrown when you try to use a shard ID that is
+// less than the total shard count
+var ErrWSShardBounds = errors.New("ShardID must be less than ShardCount")
+
 type resumePacket struct {
 	Op   int `json:"op"`
 	Data struct {
 		Token     string `json:"token"`
 		SessionID string `json:"session_id"`
-		Sequence  int    `json:"seq"`
+		Sequence  int64  `json:"seq"`
 	} `json:"d"`
 }
 
@@ -57,7 +69,7 @@ func (s *Session) Open() (err error) {
 	}
 
 	if s.wsConn != nil {
-		err = errors.New("Web socket already opened.")
+		err = ErrWSAlreadyOpen
 		return
 	}
 
@@ -74,7 +86,7 @@ func (s *Session) Open() (err error) {
 		}
 
 		// Add the version and encoding to the URL
-		s.gateway = fmt.Sprintf("%s?v=4&encoding=json", s.gateway)
+		s.gateway = s.gateway + "?v=" + APIVersion + "&encoding=json"
 	}
 
 	header := http.Header{}
@@ -89,13 +101,14 @@ func (s *Session) Open() (err error) {
 		return
 	}
 
-	if s.sessionID != "" && s.sequence > 0 {
+	sequence := atomic.LoadInt64(s.sequence)
+	if s.sessionID != "" && sequence > 0 {
 
 		p := resumePacket{}
 		p.Op = 6
 		p.Data.Token = s.Token
 		p.Data.SessionID = s.sessionID
-		p.Data.Sequence = s.sequence
+		p.Data.Sequence = sequence
 
 		s.log(LogInformational, "sending resume packet to gateway")
 		err = s.wsConn.WriteJSON(p)
@@ -117,6 +130,7 @@ func (s *Session) Open() (err error) {
 	// lock.
 	s.listening = make(chan interface{})
 	go s.listen(s.wsConn, s.listening)
+	s.LastHeartbeatAck = time.Now().UTC()
 
 	s.Unlock()
 
@@ -176,14 +190,22 @@ func (s *Session) listen(wsConn *websocket.Conn, listening <-chan interface{}) {
 }
 
 type heartbeatOp struct {
-	Op   int `json:"op"`
-	Data int `json:"d"`
+	Op   int   `json:"op"`
+	Data int64 `json:"d"`
 }
 
+type helloOp struct {
+	HeartbeatInterval time.Duration `json:"heartbeat_interval"`
+	Trace             []string      `json:"_trace"`
+}
+
+// FailedHeartbeatAcks is the Number of heartbeat intervals to wait until forcing a connection restart.
+const FailedHeartbeatAcks time.Duration = 5 * time.Millisecond
+
 // heartbeat sends regular heartbeats to Discord so it knows the client
 // is still connected.  If you do not send these heartbeats Discord will
 // disconnect the websocket connection after a few seconds.
-func (s *Session) heartbeat(wsConn *websocket.Conn, listening <-chan interface{}, i time.Duration) {
+func (s *Session) heartbeat(wsConn *websocket.Conn, listening <-chan interface{}, heartbeatIntervalMsec time.Duration) {
 
 	s.log(LogInformational, "called")
 
@@ -192,19 +214,26 @@ func (s *Session) heartbeat(wsConn *websocket.Conn, listening <-chan interface{}
 	}
 
 	var err error
-	ticker := time.NewTicker(i * time.Millisecond)
+	ticker := time.NewTicker(heartbeatIntervalMsec * time.Millisecond)
+	defer ticker.Stop()
 
 	for {
-
-		s.log(LogInformational, "sending gateway websocket heartbeat seq %d", s.sequence)
+		s.RLock()
+		last := s.LastHeartbeatAck
+		s.RUnlock()
+		sequence := atomic.LoadInt64(s.sequence)
+		s.log(LogInformational, "sending gateway websocket heartbeat seq %d", sequence)
 		s.wsMutex.Lock()
-		err = wsConn.WriteJSON(heartbeatOp{1, s.sequence})
+		err = wsConn.WriteJSON(heartbeatOp{1, sequence})
 		s.wsMutex.Unlock()
-		if err != nil {
-			s.log(LogError, "error sending heartbeat to gateway %s, %s", s.gateway, err)
-			s.Lock()
-			s.DataReady = false
-			s.Unlock()
+		if err != nil || time.Now().UTC().Sub(last) > (heartbeatIntervalMsec*FailedHeartbeatAcks) {
+			if err != nil {
+				s.log(LogError, "error sending heartbeat to gateway %s, %s", s.gateway, err)
+			} else {
+				s.log(LogError, "haven't gotten a heartbeat ACK in %v, triggering a reconnection", time.Now().UTC().Sub(last))
+			}
+			s.Close()
+			s.reconnect()
 			return
 		}
 		s.Lock()
@@ -221,8 +250,10 @@ func (s *Session) heartbeat(wsConn *websocket.Conn, listening <-chan interface{}
 }
 
 type updateStatusData struct {
-	IdleSince *int  `json:"idle_since"`
-	Game      *Game `json:"game"`
+	IdleSince *int   `json:"since"`
+	Game      *Game  `json:"game"`
+	AFK       bool   `json:"afk"`
+	Status    string `json:"status"`
 }
 
 type updateStatusOp struct {
@@ -242,10 +273,13 @@ func (s *Session) UpdateStreamingStatus(idle int, game string, url string) (err
 	s.RLock()
 	defer s.RUnlock()
 	if s.wsConn == nil {
-		return errors.New("no websocket connection exists")
+		return ErrWSNotFound
+	}
+
+	usd := updateStatusData{
+		Status: "online",
 	}
 
-	var usd updateStatusData
 	if idle > 0 {
 		usd.IdleSince = &idle
 	}
@@ -299,7 +333,7 @@ func (s *Session) RequestGuildMembers(guildID, query string, limit int) (err err
 	s.RLock()
 	defer s.RUnlock()
 	if s.wsConn == nil {
-		return errors.New("no websocket connection exists")
+		return ErrWSNotFound
 	}
 
 	data := requestGuildMembersData{
@@ -365,7 +399,7 @@ func (s *Session) onEvent(messageType int, message []byte) {
 	if e.Operation == 1 {
 		s.log(LogInformational, "sending heartbeat in response to Op1")
 		s.wsMutex.Lock()
-		err = s.wsConn.WriteJSON(heartbeatOp{1, s.sequence})
+		err = s.wsConn.WriteJSON(heartbeatOp{1, atomic.LoadInt64(s.sequence)})
 		s.wsMutex.Unlock()
 		if err != nil {
 			s.log(LogError, "error sending heartbeat in response to Op1")
@@ -378,7 +412,10 @@ func (s *Session) onEvent(messageType int, message []byte) {
 	// Reconnect
 	// Must immediately disconnect from gateway and reconnect to new gateway.
 	if e.Operation == 7 {
-		// TODO
+		s.log(LogInformational, "Closing and reconnecting in response to Op7")
+		s.Close()
+		s.reconnect()
+		return
 	}
 
 	// Invalid Session
@@ -396,6 +433,24 @@ func (s *Session) onEvent(messageType int, message []byte) {
 		return
 	}
 
+	if e.Operation == 10 {
+		var h helloOp
+		if err = json.Unmarshal(e.RawData, &h); err != nil {
+			s.log(LogError, "error unmarshalling helloOp, %s", err)
+		} else {
+			go s.heartbeat(s.wsConn, s.listening, h.HeartbeatInterval)
+		}
+		return
+	}
+
+	if e.Operation == 11 {
+		s.Lock()
+		s.LastHeartbeatAck = time.Now().UTC()
+		s.Unlock()
+		s.log(LogInformational, "got heartbeat ACK")
+		return
+	}
+
 	// Do not try to Dispatch a non-Dispatch Message
 	if e.Operation != 0 {
 		// But we probably should be doing something with them.
@@ -405,7 +460,7 @@ func (s *Session) onEvent(messageType int, message []byte) {
 	}
 
 	// Store the message sequence
-	s.sequence = e.Sequence
+	atomic.StoreInt64(s.sequence, e.Sequence)
 
 	// Map event to registered event handlers and pass it along to any registered handlers.
 	if eh, ok := registeredInterfaceProviders[e.Type]; ok {
@@ -458,18 +513,24 @@ func (s *Session) ChannelVoiceJoin(gID, cID string, mute, deaf bool) (voice *Voi
 
 	s.log(LogInformational, "called")
 
+	s.RLock()
 	voice, _ = s.VoiceConnections[gID]
+	s.RUnlock()
 
 	if voice == nil {
 		voice = &VoiceConnection{}
+		s.Lock()
 		s.VoiceConnections[gID] = voice
+		s.Unlock()
 	}
 
+	voice.Lock()
 	voice.GuildID = gID
 	voice.ChannelID = cID
 	voice.deaf = deaf
 	voice.mute = mute
 	voice.session = s
+	voice.Unlock()
 
 	// Send the request to Discord that we want to join the voice channel
 	data := voiceChannelJoinOp{4, voiceChannelJoinData{&gID, &cID, mute, deaf}}
@@ -500,7 +561,9 @@ func (s *Session) onVoiceStateUpdate(st *VoiceStateUpdate) {
 	}
 
 	// Check if we have a voice connection to update
+	s.RLock()
 	voice, exists := s.VoiceConnections[st.GuildID]
+	s.RUnlock()
 	if !exists {
 		return
 	}
@@ -511,8 +574,11 @@ func (s *Session) onVoiceStateUpdate(st *VoiceStateUpdate) {
 	}
 
 	// Store the SessionID for later use.
+	voice.Lock()
 	voice.UserID = st.UserID
 	voice.sessionID = st.SessionID
+	voice.ChannelID = st.ChannelID
+	voice.Unlock()
 }
 
 // onVoiceServerUpdate handles the Voice Server Update data websocket event.
@@ -524,7 +590,9 @@ func (s *Session) onVoiceServerUpdate(st *VoiceServerUpdate) {
 
 	s.log(LogInformational, "called")
 
+	s.RLock()
 	voice, exists := s.VoiceConnections[st.GuildID]
+	s.RUnlock()
 
 	// If no VoiceConnection exists, just skip this
 	if !exists {
@@ -536,9 +604,11 @@ func (s *Session) onVoiceServerUpdate(st *VoiceServerUpdate) {
 	voice.Close()
 
 	// Store values for later use
+	voice.Lock()
 	voice.token = st.Token
 	voice.endpoint = st.Endpoint
 	voice.GuildID = st.GuildID
+	voice.Unlock()
 
 	// Open a conenction to the voice server
 	err := voice.open()
@@ -588,7 +658,7 @@ func (s *Session) identify() error {
 	if s.ShardCount > 1 {
 
 		if s.ShardID >= s.ShardCount {
-			return errors.New("ShardID must be less than ShardCount")
+			return ErrWSShardBounds
 		}
 
 		data.Shard = &[2]int{s.ShardID, s.ShardCount}
@@ -628,6 +698,8 @@ func (s *Session) reconnect() {
 				// However, there seems to be cases where something "weird"
 				// happens.  So we're doing this for now just to improve
 				// stability in those edge cases.
+				s.RLock()
+				defer s.RUnlock()
 				for _, v := range s.VoiceConnections {
 
 					s.log(LogInformational, "reconnecting voice connection to guild %s", v.GuildID)
@@ -641,6 +713,13 @@ func (s *Session) reconnect() {
 				return
 			}
 
+			// Certain race conditions can call reconnect() twice. If this happens, we
+			// just break out of the reconnect loop
+			if err == ErrWSAlreadyOpen {
+				s.log(LogInformational, "Websocket already exists, no need to reconnect")
+				return
+			}
+
 			s.log(LogError, "error reconnecting to gateway, %s", err)
 
 			<-time.After(wait * time.Second)
@@ -675,7 +754,9 @@ func (s *Session) Close() (err error) {
 		s.log(LogInformational, "sending close frame")
 		// To cleanly close a connection, a client should send a close
 		// frame and wait for the server to close the connection.
+		s.wsMutex.Lock()
 		err := s.wsConn.WriteMessage(websocket.CloseMessage, websocket.FormatCloseMessage(websocket.CloseNormalClosure, ""))
+		s.wsMutex.Unlock()
 		if err != nil {
 			s.log(LogInformational, "error closing websocket, %s", err)
 		}

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

@@ -191,7 +191,11 @@ func (bot *BotAPI) UploadFile(endpoint string, params map[string]string, fieldna
 	}
 
 	var apiResp APIResponse
-	json.Unmarshal(bytes, &apiResp)
+
+	err = json.Unmarshal(bytes, &apiResp)
+	if err != nil {
+		return APIResponse{}, err
+	}
 
 	if !apiResp.Ok {
 		return APIResponse{}, errors.New(apiResp.Description)
@@ -438,14 +442,7 @@ func (bot *BotAPI) SetWebhook(config WebhookConfig) (APIResponse, error) {
 		return APIResponse{}, err
 	}
 
-	var apiResp APIResponse
-	json.Unmarshal(resp.Result, &apiResp)
-
-	if bot.Debug {
-		log.Printf("setWebhook resp: %+v\n", apiResp)
-	}
-
-	return apiResp, nil
+	return resp, nil
 }
 
 // GetWebhookInfo allows you to fetch information about a webhook and if
@@ -550,7 +547,7 @@ func (bot *BotAPI) AnswerCallbackQuery(config CallbackConfig) (APIResponse, erro
 // KickChatMember kicks a user from a chat. Note that this only will work
 // in supergroups, and requires the bot to be an admin. Also note they
 // will be unable to rejoin until they are unbanned.
-func (bot *BotAPI) KickChatMember(config ChatMemberConfig) (APIResponse, error) {
+func (bot *BotAPI) KickChatMember(config KickChatMemberConfig) (APIResponse, error) {
 	v := url.Values{}
 
 	if config.SuperGroupUsername == "" {
@@ -560,6 +557,10 @@ func (bot *BotAPI) KickChatMember(config ChatMemberConfig) (APIResponse, error)
 	}
 	v.Add("user_id", strconv.Itoa(config.UserID))
 
+	if config.UntilDate != 0 {
+		v.Add("until_date", strconv.FormatInt(config.UntilDate, 10))
+	}
+
 	bot.debugLog("kickChatMember", v, nil)
 
 	return bot.MakeRequest("kickChatMember", v)
@@ -677,14 +678,16 @@ func (bot *BotAPI) GetChatMember(config ChatConfigWithUser) (ChatMember, error)
 }
 
 // UnbanChatMember unbans a user from a chat. Note that this only will work
-// in supergroups, and requires the bot to be an admin.
+// in supergroups and channels, and requires the bot to be an admin.
 func (bot *BotAPI) UnbanChatMember(config ChatMemberConfig) (APIResponse, error) {
 	v := url.Values{}
 
-	if config.SuperGroupUsername == "" {
-		v.Add("chat_id", strconv.FormatInt(config.ChatID, 10))
-	} else {
+	if config.SuperGroupUsername != "" {
 		v.Add("chat_id", config.SuperGroupUsername)
+	} else if config.ChannelUsername != "" {
+		v.Add("chat_id", config.ChannelUsername)
+	} else {
+		v.Add("chat_id", strconv.FormatInt(config.ChatID, 10))
 	}
 	v.Add("user_id", strconv.Itoa(config.UserID))
 
@@ -693,6 +696,82 @@ func (bot *BotAPI) UnbanChatMember(config ChatMemberConfig) (APIResponse, error)
 	return bot.MakeRequest("unbanChatMember", v)
 }
 
+// RestrictChatMember to restrict a user in a supergroup. The bot must be an
+//administrator in the supergroup for this to work and must have the
+//appropriate admin rights. Pass True for all boolean parameters to lift
+//restrictions from a user. Returns True on success.
+func (bot *BotAPI) RestrictChatMember(config RestrictChatMemberConfig) (APIResponse, error) {
+	v := url.Values{}
+
+	if config.SuperGroupUsername != "" {
+		v.Add("chat_id", config.SuperGroupUsername)
+	} else if config.ChannelUsername != "" {
+		v.Add("chat_id", config.ChannelUsername)
+	} else {
+		v.Add("chat_id", strconv.FormatInt(config.ChatID, 10))
+	}
+	v.Add("user_id", strconv.Itoa(config.UserID))
+
+	if &config.CanSendMessages != nil {
+		v.Add("can_send_messages", strconv.FormatBool(*config.CanSendMessages))
+	}
+	if &config.CanSendMediaMessages != nil {
+		v.Add("can_send_media_messages", strconv.FormatBool(*config.CanSendMediaMessages))
+	}
+	if &config.CanSendOtherMessages != nil {
+		v.Add("can_send_other_messages", strconv.FormatBool(*config.CanSendOtherMessages))
+	}
+	if &config.CanAddWebPagePreviews != nil {
+		v.Add("can_add_web_page_previews", strconv.FormatBool(*config.CanAddWebPagePreviews))
+	}
+
+	bot.debugLog("restrictChatMember", v, nil)
+
+	return bot.MakeRequest("restrictChatMember", v)
+}
+
+func (bot *BotAPI) PromoteChatMember(config PromoteChatMemberConfig) (APIResponse, error) {
+	v := url.Values{}
+
+	if config.SuperGroupUsername != "" {
+		v.Add("chat_id", config.SuperGroupUsername)
+	} else if config.ChannelUsername != "" {
+		v.Add("chat_id", config.ChannelUsername)
+	} else {
+		v.Add("chat_id", strconv.FormatInt(config.ChatID, 10))
+	}
+	v.Add("user_id", strconv.Itoa(config.UserID))
+
+	if &config.CanChangeInfo != nil {
+		v.Add("can_change_info", strconv.FormatBool(*config.CanChangeInfo))
+	}
+	if &config.CanPostMessages != nil {
+		v.Add("can_post_messages", strconv.FormatBool(*config.CanPostMessages))
+	}
+	if &config.CanEditMessages != nil {
+		v.Add("can_edit_messages", strconv.FormatBool(*config.CanEditMessages))
+	}
+	if &config.CanDeleteMessages != nil {
+		v.Add("can_delete_messages", strconv.FormatBool(*config.CanDeleteMessages))
+	}
+	if &config.CanInviteUsers != nil {
+		v.Add("can_invite_users", strconv.FormatBool(*config.CanInviteUsers))
+	}
+	if &config.CanRestrictMembers != nil {
+		v.Add("can_restrict_members", strconv.FormatBool(*config.CanRestrictMembers))
+	}
+	if &config.CanPinMessages != nil {
+		v.Add("can_pin_messages", strconv.FormatBool(*config.CanPinMessages))
+	}
+	if &config.CanPromoteMembers != nil {
+		v.Add("can_promote_members", strconv.FormatBool(*config.CanPromoteMembers))
+	}
+
+	bot.debugLog("promoteChatMember", v, nil)
+
+	return bot.MakeRequest("promoteChatMember", v)
+}
+
 // GetGameHighScores allows you to get the high scores for a game.
 func (bot *BotAPI) GetGameHighScores(config GetGameHighScoresConfig) ([]GameHighScore, error) {
 	v, _ := config.values()
@@ -707,3 +786,93 @@ func (bot *BotAPI) GetGameHighScores(config GetGameHighScoresConfig) ([]GameHigh
 
 	return highScores, err
 }
+
+// AnswerShippingQuery allows you to reply to Update with shipping_query parameter.
+func (bot *BotAPI) AnswerShippingQuery(config ShippingConfig) (APIResponse, error) {
+	v := url.Values{}
+
+	v.Add("shipping_query_id", config.ShippingQueryID)
+	v.Add("ok", strconv.FormatBool(config.OK))
+	if config.OK == true {
+		data, err := json.Marshal(config.ShippingOptions)
+		if err != nil {
+			return APIResponse{}, err
+		}
+		v.Add("shipping_options", string(data))
+	} else {
+		v.Add("error_message", config.ErrorMessage)
+	}
+
+	bot.debugLog("answerShippingQuery", v, nil)
+
+	return bot.MakeRequest("answerShippingQuery", v)
+}
+
+// AnswerPreCheckoutQuery allows you to reply to Update with pre_checkout_query.
+func (bot *BotAPI) AnswerPreCheckoutQuery(config PreCheckoutConfig) (APIResponse, error) {
+	v := url.Values{}
+
+	v.Add("pre_checkout_query_id", config.PreCheckoutQueryID)
+	v.Add("ok", strconv.FormatBool(config.OK))
+	if config.OK != true {
+		v.Add("error", config.ErrorMessage)
+	}
+
+	bot.debugLog("answerPreCheckoutQuery", v, nil)
+
+	return bot.MakeRequest("answerPreCheckoutQuery", v)
+}
+
+// DeleteMessage deletes a message in a chat
+func (bot *BotAPI) DeleteMessage(config DeleteMessageConfig) (APIResponse, error) {
+	v, err := config.values()
+	if err != nil {
+		return APIResponse{}, err
+	}
+
+	bot.debugLog(config.method(), v, nil)
+
+	return bot.MakeRequest(config.method(), v)
+}
+
+// GetInviteLink get InviteLink for a chat
+func (bot *BotAPI) GetInviteLink(config ChatConfig) (string, error) {
+	v := url.Values{}
+
+	if config.SuperGroupUsername == "" {
+		v.Add("chat_id", strconv.FormatInt(config.ChatID, 10))
+	} else {
+		v.Add("chat_id", config.SuperGroupUsername)
+	}
+
+	resp, err := bot.MakeRequest("exportChatInviteLink", v)
+
+	var inviteLink string
+	err = json.Unmarshal(resp.Result, &inviteLink)
+
+	return inviteLink, err
+}
+
+// Pin message in supergroup
+func (bot *BotAPI) PinChatMessage(config PinChatMessageConfig) (APIResponse, error) {
+	v, err := config.values()
+	if err != nil {
+		return APIResponse{}, err
+	}
+
+	bot.debugLog(config.method(), v, nil)
+
+	return bot.MakeRequest(config.method(), v)
+}
+
+// Unpin message in supergroup
+func (bot *BotAPI) UnpinChatMessage(config UnpinChatMessageConfig) (APIResponse, error) {
+	v, err := config.values()
+	if err != nil {
+		return APIResponse{}, err
+	}
+
+	bot.debugLog(config.method(), v, nil)
+
+	return bot.MakeRequest(config.method(), v)
+}

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

@@ -349,6 +349,7 @@ func (config AudioConfig) method() string {
 // DocumentConfig contains information about a SendDocument request.
 type DocumentConfig struct {
 	BaseFile
+	Caption string
 }
 
 // values returns a url.Values representation of DocumentConfig.
@@ -359,6 +360,9 @@ func (config DocumentConfig) values() (url.Values, error) {
 	}
 
 	v.Add(config.name(), config.FileID)
+	if config.Caption != "" {
+		v.Add("caption", config.Caption)
+	}
 
 	return v, nil
 }
@@ -367,6 +371,10 @@ func (config DocumentConfig) values() (url.Values, error) {
 func (config DocumentConfig) params() (map[string]string, error) {
 	params, _ := config.BaseFile.params()
 
+	if config.Caption != "" {
+		params["caption"] = config.Caption
+	}
+
 	return params, nil
 }
 
@@ -443,6 +451,10 @@ func (config VideoConfig) values() (url.Values, error) {
 func (config VideoConfig) params() (map[string]string, error) {
 	params, _ := config.BaseFile.params()
 
+	if config.Caption != "" {
+		params["caption"] = config.Caption
+	}
+
 	return params, nil
 }
 
@@ -456,6 +468,57 @@ func (config VideoConfig) method() string {
 	return "sendVideo"
 }
 
+// VideoNoteConfig contains information about a SendVideoNote request.
+type VideoNoteConfig struct {
+	BaseFile
+	Duration int
+	Length   int
+}
+
+// values returns a url.Values representation of VideoNoteConfig.
+func (config VideoNoteConfig) values() (url.Values, error) {
+	v, err := config.BaseChat.values()
+	if err != nil {
+		return v, err
+	}
+
+	v.Add(config.name(), config.FileID)
+	if config.Duration != 0 {
+		v.Add("duration", strconv.Itoa(config.Duration))
+	}
+
+	// Telegram API seems to have a bug, if no length is provided or it is 0, it will send an error response
+	if config.Length != 0 {
+		v.Add("length", strconv.Itoa(config.Length))
+	}
+
+	return v, nil
+}
+
+// params returns a map[string]string representation of VideoNoteConfig.
+func (config VideoNoteConfig) params() (map[string]string, error) {
+	params, _ := config.BaseFile.params()
+
+	if config.Length != 0 {
+		params["length"] = strconv.Itoa(config.Length)
+	}
+	if config.Duration != 0 {
+		params["duration"] = strconv.Itoa(config.Duration)
+	}
+
+	return params, nil
+}
+
+// name returns the field name for the VideoNote.
+func (config VideoNoteConfig) name() string {
+	return "video_note"
+}
+
+// method returns Telegram API method name for sending VideoNote.
+func (config VideoNoteConfig) method() string {
+	return "sendVideoNote"
+}
+
 // VoiceConfig contains information about a SendVoice request.
 type VoiceConfig struct {
 	BaseFile
@@ -474,6 +537,9 @@ func (config VoiceConfig) values() (url.Values, error) {
 	if config.Duration != 0 {
 		v.Add("duration", strconv.Itoa(config.Duration))
 	}
+	if config.Caption != "" {
+		v.Add("caption", config.Caption)
+	}
 
 	return v, nil
 }
@@ -485,6 +551,9 @@ func (config VoiceConfig) params() (map[string]string, error) {
 	if config.Duration != 0 {
 		params["duration"] = strconv.Itoa(config.Duration)
 	}
+	if config.Caption != "" {
+		params["caption"] = config.Caption
+	}
 
 	return params, nil
 }
@@ -814,9 +883,39 @@ type CallbackConfig struct {
 type ChatMemberConfig struct {
 	ChatID             int64
 	SuperGroupUsername string
+	ChannelUsername    string
 	UserID             int
 }
 
+// KickChatMemberConfig contains extra fields to kick user
+type KickChatMemberConfig struct {
+	ChatMemberConfig
+	UntilDate int64
+}
+
+// RestrictChatMemberConfig contains fields to restrict members of chat
+type RestrictChatMemberConfig struct {
+	ChatMemberConfig
+	UntilDate             int64
+	CanSendMessages       *bool
+	CanSendMediaMessages  *bool
+	CanSendOtherMessages  *bool
+	CanAddWebPagePreviews *bool
+}
+
+// PromoteChatMemberConfig contains fields to promote members of chat
+type PromoteChatMemberConfig struct {
+	ChatMemberConfig
+	CanChangeInfo      *bool
+	CanPostMessages    *bool
+	CanEditMessages    *bool
+	CanDeleteMessages  *bool
+	CanInviteUsers     *bool
+	CanRestrictMembers *bool
+	CanPinMessages     *bool
+	CanPromoteMembers  *bool
+}
+
 // ChatConfig contains information about getting information on a chat.
 type ChatConfig struct {
 	ChatID             int64
@@ -830,3 +929,147 @@ type ChatConfigWithUser struct {
 	SuperGroupUsername string
 	UserID             int
 }
+
+// InvoiceConfig contains information for sendInvoice request.
+type InvoiceConfig struct {
+	BaseChat
+	Title               string          // required
+	Description         string          // required
+	Payload             string          // required
+	ProviderToken       string          // required
+	StartParameter      string          // required
+	Currency            string          // required
+	Prices              *[]LabeledPrice // required
+	PhotoURL            string
+	PhotoSize           int
+	PhotoWidth          int
+	PhotoHeight         int
+	NeedName            bool
+	NeedPhoneNumber     bool
+	NeedEmail           bool
+	NeedShippingAddress bool
+	IsFlexible          bool
+}
+
+func (config InvoiceConfig) values() (url.Values, error) {
+	v, err := config.BaseChat.values()
+	if err != nil {
+		return v, err
+	}
+	v.Add("title", config.Title)
+	v.Add("description", config.Description)
+	v.Add("payload", config.Payload)
+	v.Add("provider_token", config.ProviderToken)
+	v.Add("start_parameter", config.StartParameter)
+	v.Add("currency", config.Currency)
+	data, err := json.Marshal(config.Prices)
+	if err != nil {
+		return v, err
+	}
+	v.Add("prices", string(data))
+	if config.PhotoURL != "" {
+		v.Add("photo_url", config.PhotoURL)
+	}
+	if config.PhotoSize != 0 {
+		v.Add("photo_size", strconv.Itoa(config.PhotoSize))
+	}
+	if config.PhotoWidth != 0 {
+		v.Add("photo_width", strconv.Itoa(config.PhotoWidth))
+	}
+	if config.PhotoHeight != 0 {
+		v.Add("photo_height", strconv.Itoa(config.PhotoHeight))
+	}
+	if config.NeedName != false {
+		v.Add("need_name", strconv.FormatBool(config.NeedName))
+	}
+	if config.NeedPhoneNumber != false {
+		v.Add("need_phone_number", strconv.FormatBool(config.NeedPhoneNumber))
+	}
+	if config.NeedEmail != false {
+		v.Add("need_email", strconv.FormatBool(config.NeedEmail))
+	}
+	if config.NeedShippingAddress != false {
+		v.Add("need_shipping_address", strconv.FormatBool(config.NeedShippingAddress))
+	}
+	if config.IsFlexible != false {
+		v.Add("is_flexible", strconv.FormatBool(config.IsFlexible))
+	}
+
+	return v, nil
+}
+
+func (config InvoiceConfig) method() string {
+	return "sendInvoice"
+}
+
+// ShippingConfig contains information for answerShippingQuery request.
+type ShippingConfig struct {
+	ShippingQueryID string // required
+	OK              bool   // required
+	ShippingOptions *[]ShippingOption
+	ErrorMessage    string
+}
+
+// PreCheckoutConfig conatins information for answerPreCheckoutQuery request.
+type PreCheckoutConfig struct {
+	PreCheckoutQueryID string // required
+	OK                 bool   // required
+	ErrorMessage       string
+}
+
+// DeleteMessageConfig contains information of a message in a chat to delete.
+type DeleteMessageConfig struct {
+	ChatID    int64
+	MessageID int
+}
+
+func (config DeleteMessageConfig) method() string {
+	return "deleteMessage"
+}
+
+func (config DeleteMessageConfig) values() (url.Values, error) {
+	v := url.Values{}
+
+	v.Add("chat_id", strconv.FormatInt(config.ChatID, 10))
+	v.Add("message_id", strconv.Itoa(config.MessageID))
+
+	return v, nil
+}
+
+// PinChatMessageConfig contains information of a message in a chat to pin.
+type PinChatMessageConfig struct {
+	ChatID int64
+	MessageID int
+	DisableNotification bool
+}
+
+func (config PinChatMessageConfig) method() string {
+	return "pinChatMessage"
+}
+
+func (config PinChatMessageConfig) values() (url.Values, error) {
+	v := url.Values{}
+
+	v.Add("chat_id", strconv.FormatInt(config.ChatID, 10))
+	v.Add("message_id", strconv.Itoa(config.MessageID))
+	v.Add("disable_notification", strconv.FormatBool(config.DisableNotification))
+
+	return v, nil
+}
+
+// UnpinChatMessageConfig contains information of chat to unpin.
+type UnpinChatMessageConfig struct {
+	ChatID int64
+}
+
+func (config UnpinChatMessageConfig) method() string {
+	return "unpinChatMessage"
+}
+
+func (config UnpinChatMessageConfig) values() (url.Values, error) {
+	v := url.Values{}
+
+	v.Add("chat_id", strconv.FormatInt(config.ChatID, 10))
+
+	return v, nil
+}

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

@@ -194,6 +194,37 @@ func NewVideoShare(chatID int64, fileID string) VideoConfig {
 	}
 }
 
+// NewVideoNoteUpload creates a new video note uploader.
+//
+// chatID is where to send it, file is a string path to the file,
+// FileReader, or FileBytes.
+func NewVideoNoteUpload(chatID int64, length int, file interface{}) VideoNoteConfig {
+	return VideoNoteConfig{
+		BaseFile: BaseFile{
+			BaseChat:    BaseChat{ChatID: chatID},
+			File:        file,
+			UseExisting: false,
+		},
+		Length: length,
+	}
+}
+
+// NewVideoNoteShare shares an existing video.
+// You may use this to reshare an existing video without reuploading it.
+//
+// chatID is where to send it, fileID is the ID of the video
+// already uploaded.
+func NewVideoNoteShare(chatID int64, length int, fileID string) VideoNoteConfig {
+	return VideoNoteConfig{
+		BaseFile: BaseFile{
+			BaseChat:    BaseChat{ChatID: chatID},
+			FileID:      fileID,
+			UseExisting: true,
+		},
+		Length: length,
+	}
+}
+
 // NewVoiceUpload creates a new voice uploader.
 //
 // chatID is where to send it, file is a string path to the file,
@@ -609,3 +640,16 @@ func NewCallbackWithAlert(id, text string) CallbackConfig {
 		ShowAlert:       true,
 	}
 }
+
+// NewInvoice created a new Invoice request to the user.
+func NewInvoice(chatID int64, title, description, payload, providerToken, startParameter, currency string, prices *[]LabeledPrice) InvoiceConfig {
+	return InvoiceConfig{
+		BaseChat:       BaseChat{ChatID: chatID},
+		Title:          title,
+		Description:    description,
+		Payload:        payload,
+		ProviderToken:  providerToken,
+		StartParameter: startParameter,
+		Currency:       currency,
+		Prices:         prices}
+}

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

@@ -35,6 +35,8 @@ type Update struct {
 	InlineQuery        *InlineQuery        `json:"inline_query"`
 	ChosenInlineResult *ChosenInlineResult `json:"chosen_inline_result"`
 	CallbackQuery      *CallbackQuery      `json:"callback_query"`
+	ShippingQuery      *ShippingQuery      `json:"shipping_query"`
+	PreCheckoutQuery   *PreCheckoutQuery   `json:"pre_checkout_query"`
 }
 
 // UpdatesChannel is the channel for getting updates.
@@ -49,10 +51,11 @@ func (ch UpdatesChannel) Clear() {
 
 // User is a user on Telegram.
 type User struct {
-	ID        int    `json:"id"`
-	FirstName string `json:"first_name"`
-	LastName  string `json:"last_name"` // optional
-	UserName  string `json:"username"`  // optional
+	ID           int    `json:"id"`
+	FirstName    string `json:"first_name"`
+	LastName     string `json:"last_name"`     // optional
+	UserName     string `json:"username"`      // optional
+	LanguageCode string `json:"language_code"` // optional
 }
 
 // String displays a simple text version of a user.
@@ -78,15 +81,24 @@ type GroupChat struct {
 	Title string `json:"title"`
 }
 
+// ChatPhoto represents a chat photo.
+type ChatPhoto struct {
+	SmallFileID string `json:"small_file_id"`
+	BigFileID   string `json:"big_file_id"`
+}
+
 // Chat contains information about the place a message was sent.
 type Chat struct {
-	ID                  int64  `json:"id"`
-	Type                string `json:"type"`
-	Title               string `json:"title"`                          // optional
-	UserName            string `json:"username"`                       // optional
-	FirstName           string `json:"first_name"`                     // optional
-	LastName            string `json:"last_name"`                      // optional
-	AllMembersAreAdmins bool   `json:"all_members_are_administrators"` // optional
+	ID                  int64      `json:"id"`
+	Type                string     `json:"type"`
+	Title               string     `json:"title"`                          // optional
+	UserName            string     `json:"username"`                       // optional
+	FirstName           string     `json:"first_name"`                     // optional
+	LastName            string     `json:"last_name"`                      // optional
+	AllMembersAreAdmins bool       `json:"all_members_are_administrators"` // optional
+	Photo               *ChatPhoto `json:"photo"`
+	Description         string     `json:"description,omitempty"` // optional
+	InviteLink          string     `json:"invite_link,omitempty"` // optional
 }
 
 // IsPrivate returns if the Chat is a private conversation.
@@ -117,40 +129,43 @@ func (c Chat) ChatConfig() ChatConfig {
 // Message is returned by almost every request, and contains data about
 // almost anything.
 type Message struct {
-	MessageID             int              `json:"message_id"`
-	From                  *User            `json:"from"` // optional
-	Date                  int              `json:"date"`
-	Chat                  *Chat            `json:"chat"`
-	ForwardFrom           *User            `json:"forward_from"`            // optional
-	ForwardFromChat       *Chat            `json:"forward_from_chat"`       // optional
-	ForwardFromMessageID  int              `json:"forward_from_message_id"` // optional
-	ForwardDate           int              `json:"forward_date"`            // optional
-	ReplyToMessage        *Message         `json:"reply_to_message"`        // optional
-	EditDate              int              `json:"edit_date"`               // optional
-	Text                  string           `json:"text"`                    // optional
-	Entities              *[]MessageEntity `json:"entities"`                // optional
-	Audio                 *Audio           `json:"audio"`                   // optional
-	Document              *Document        `json:"document"`                // optional
-	Game                  *Game            `json:"game"`                    // optional
-	Photo                 *[]PhotoSize     `json:"photo"`                   // optional
-	Sticker               *Sticker         `json:"sticker"`                 // optional
-	Video                 *Video           `json:"video"`                   // optional
-	Voice                 *Voice           `json:"voice"`                   // optional
-	Caption               string           `json:"caption"`                 // optional
-	Contact               *Contact         `json:"contact"`                 // optional
-	Location              *Location        `json:"location"`                // optional
-	Venue                 *Venue           `json:"venue"`                   // optional
-	NewChatMember         *User            `json:"new_chat_member"`         // optional
-	LeftChatMember        *User            `json:"left_chat_member"`        // optional
-	NewChatTitle          string           `json:"new_chat_title"`          // optional
-	NewChatPhoto          *[]PhotoSize     `json:"new_chat_photo"`          // optional
-	DeleteChatPhoto       bool             `json:"delete_chat_photo"`       // optional
-	GroupChatCreated      bool             `json:"group_chat_created"`      // optional
-	SuperGroupChatCreated bool             `json:"supergroup_chat_created"` // optional
-	ChannelChatCreated    bool             `json:"channel_chat_created"`    // optional
-	MigrateToChatID       int64            `json:"migrate_to_chat_id"`      // optional
-	MigrateFromChatID     int64            `json:"migrate_from_chat_id"`    // optional
-	PinnedMessage         *Message         `json:"pinned_message"`          // optional
+	MessageID             int                `json:"message_id"`
+	From                  *User              `json:"from"` // optional
+	Date                  int                `json:"date"`
+	Chat                  *Chat              `json:"chat"`
+	ForwardFrom           *User              `json:"forward_from"`            // optional
+	ForwardFromChat       *Chat              `json:"forward_from_chat"`       // optional
+	ForwardFromMessageID  int                `json:"forward_from_message_id"` // optional
+	ForwardDate           int                `json:"forward_date"`            // optional
+	ReplyToMessage        *Message           `json:"reply_to_message"`        // optional
+	EditDate              int                `json:"edit_date"`               // optional
+	Text                  string             `json:"text"`                    // optional
+	Entities              *[]MessageEntity   `json:"entities"`                // optional
+	Audio                 *Audio             `json:"audio"`                   // optional
+	Document              *Document          `json:"document"`                // optional
+	Game                  *Game              `json:"game"`                    // optional
+	Photo                 *[]PhotoSize       `json:"photo"`                   // optional
+	Sticker               *Sticker           `json:"sticker"`                 // optional
+	Video                 *Video             `json:"video"`                   // optional
+	VideoNote             *VideoNote         `json:"video_note"`              // optional
+	Voice                 *Voice             `json:"voice"`                   // optional
+	Caption               string             `json:"caption"`                 // optional
+	Contact               *Contact           `json:"contact"`                 // optional
+	Location              *Location          `json:"location"`                // optional
+	Venue                 *Venue             `json:"venue"`                   // optional
+	NewChatMembers        *[]User            `json:"new_chat_members"`        // optional
+	LeftChatMember        *User              `json:"left_chat_member"`        // optional
+	NewChatTitle          string             `json:"new_chat_title"`          // optional
+	NewChatPhoto          *[]PhotoSize       `json:"new_chat_photo"`          // optional
+	DeleteChatPhoto       bool               `json:"delete_chat_photo"`       // optional
+	GroupChatCreated      bool               `json:"group_chat_created"`      // optional
+	SuperGroupChatCreated bool               `json:"supergroup_chat_created"` // optional
+	ChannelChatCreated    bool               `json:"channel_chat_created"`    // optional
+	MigrateToChatID       int64              `json:"migrate_to_chat_id"`      // optional
+	MigrateFromChatID     int64              `json:"migrate_from_chat_id"`    // optional
+	PinnedMessage         *Message           `json:"pinned_message"`          // optional
+	Invoice               *Invoice           `json:"invoice"`                 // optional
+	SuccessfulPayment     *SuccessfulPayment `json:"successful_payment"`      // optional
 }
 
 // Time converts the message timestamp into a Time.
@@ -263,6 +278,15 @@ type Video struct {
 	FileSize  int        `json:"file_size"` // optional
 }
 
+// VideoNote contains information about a video.
+type VideoNote struct {
+	FileID    string     `json:"file_id"`
+	Length    int        `json:"length"`
+	Duration  int        `json:"duration"`
+	Thumbnail *PhotoSize `json:"thumb"`     // optional
+	FileSize  int        `json:"file_size"` // optional
+}
+
 // Voice contains information about a voice.
 type Voice struct {
 	FileID   string `json:"file_id"`
@@ -361,6 +385,7 @@ type InlineKeyboardButton struct {
 	SwitchInlineQuery            *string       `json:"switch_inline_query,omitempty"`              // optional
 	SwitchInlineQueryCurrentChat *string       `json:"switch_inline_query_current_chat,omitempty"` // optional
 	CallbackGame                 *CallbackGame `json:"callback_game,omitempty"`                    // optional
+	Pay                          bool          `json:"pay,omitempty"`			       // optional
 }
 
 // CallbackQuery is data sent when a keyboard button with callback data
@@ -384,8 +409,22 @@ type ForceReply struct {
 
 // ChatMember is information about a member in a chat.
 type ChatMember struct {
-	User   *User  `json:"user"`
-	Status string `json:"status"`
+	User                  *User  `json:"user"`
+	Status                string `json:"status"`
+	UntilDate             int64  `json:"until_date,omitempty"`                // optional
+	CanBeEdited           bool   `json:"can_be_edited,omitempty"`             // optional
+	CanChangeInfo         bool   `json:"can_change_info,omitempty"`           // optional
+	CanPostMessages       bool   `json:"can_post_messages,omitempty"`         // optional
+	CanEditMessages       bool   `json:"can_edit_messages,omitempty"`         // optional
+	CanDeleteMessages     bool   `json:"can_delete_messages,omitempty"`       // optional
+	CanInviteUsers        bool   `json:"can_invite_users,omitempty"`          // optional
+	CanRestrictMembers    bool   `json:"can_restrict_members,omitempty"`      // optional
+	CanPinMessages        bool   `json:"can_pin_messages,omitempty"`          // optional
+	CanPromoteMembers     bool   `json:"can_promote_members,omitempty"`       // optional
+	CanSendMessages       bool   `json:"can_send_messages,omitempty"`         // optional
+	CanSendMediaMessages  bool   `json:"can_send_media_messages,omitempty"`   // optional
+	CanSendOtherMessages  bool   `json:"can_send_other_messages,omitempty"`   // optional
+	CanAddWebPagePreviews bool   `json:"can_add_web_page_previews,omitempty"` // optional
 }
 
 // IsCreator returns if the ChatMember was the creator of the chat.
@@ -493,6 +532,7 @@ type InlineQueryResultGIF struct {
 	URL                 string                `json:"gif_url"` // required
 	Width               int                   `json:"gif_width"`
 	Height              int                   `json:"gif_height"`
+	Duration            int                   `json:"gif_duration"`
 	ThumbURL            string                `json:"thumb_url"`
 	Title               string                `json:"title"`
 	Caption             string                `json:"caption"`
@@ -507,6 +547,7 @@ type InlineQueryResultMPEG4GIF struct {
 	URL                 string                `json:"mpeg4_url"` // required
 	Width               int                   `json:"mpeg4_width"`
 	Height              int                   `json:"mpeg4_height"`
+	Duration            int                   `json:"mpeg4_duration"`
 	ThumbURL            string                `json:"thumb_url"`
 	Title               string                `json:"title"`
 	Caption             string                `json:"caption"`
@@ -635,3 +676,73 @@ type InputContactMessageContent struct {
 	FirstName   string `json:"first_name"`
 	LastName    string `json:"last_name"`
 }
+
+// Invoice contains basic information about an invoice.
+type Invoice struct {
+	Title          string `json:"title"`
+	Description    string `json:"description"`
+	StartParameter string `json:"start_parameter"`
+	Currency       string `json:"currency"`
+	TotalAmount    int    `json:"total_amount"`
+}
+
+// LabeledPrice represents a portion of the price for goods or services.
+type LabeledPrice struct {
+	Label  string `json:"label"`
+	Amount int    `json:"amount"`
+}
+
+// ShippingAddress represents a shipping address.
+type ShippingAddress struct {
+	CountryCode string `json:"country_code"`
+	State       string `json:"state"`
+	City        string `json:"city"`
+	StreetLine1 string `json:"street_line1"`
+	StreetLine2 string `json:"street_line2"`
+	PostCode    string `json:"post_code"`
+}
+
+// OrderInfo represents information about an order.
+type OrderInfo struct {
+	Name            string           `json:"name,omitempty"`
+	PhoneNumber     string           `json:"phone_number,omitempty"`
+	Email           string           `json:"email,omitempty"`
+	ShippingAddress *ShippingAddress `json:"shipping_address,omitempty"`
+}
+
+// ShippingOption represents one shipping option.
+type ShippingOption struct {
+	ID     string          `json:"id"`
+	Title  string          `json:"title"`
+	Prices *[]LabeledPrice `json:"prices"`
+}
+
+// SuccessfulPayment contains basic information about a successful payment.
+type SuccessfulPayment struct {
+	Currency                string     `json:"currency"`
+	TotalAmount             int        `json:"total_amount"`
+	InvoicePayload          string     `json:"invoice_payload"`
+	ShippingOptionID        string     `json:"shipping_option_id,omitempty"`
+	OrderInfo               *OrderInfo `json:"order_info,omitempty"`
+	TelegramPaymentChargeID string     `json:"telegram_payment_charge_id"`
+	ProviderPaymentChargeID string     `json:"provider_payment_charge_id"`
+}
+
+// ShippingQuery contains information about an incoming shipping query.
+type ShippingQuery struct {
+	ID              string           `json:"id"`
+	From            *User            `json:"from"`
+	InvoicePayload  string           `json:"invoice_payload"`
+	ShippingAddress *ShippingAddress `json:"shipping_address"`
+}
+
+// PreCheckoutQuery contains information about an incoming pre-checkout query.
+type PreCheckoutQuery struct {
+	ID               string     `json:"id"`
+	From             *User      `json:"from"`
+	Currency         string     `json:"currency"`
+	TotalAmount      int        `json:"total_amount"`
+	InvoicePayload   string     `json:"invoice_payload"`
+	ShippingOptionID string     `json:"shipping_option_id,omitempty"`
+	OrderInfo        *OrderInfo `json:"order_info,omitempty"`
+}

vendor/github.com/hashicorp/golang-lru/2q.go

@@ -0,0 +1,212 @@
+package lru
+
+import (
+	"fmt"
+	"sync"
+
+	"github.com/hashicorp/golang-lru/simplelru"
+)
+
+const (
+	// Default2QRecentRatio is the ratio of the 2Q cache dedicated
+	// to recently added entries that have only been accessed once.
+	Default2QRecentRatio = 0.25
+
+	// Default2QGhostEntries is the default ratio of ghost
+	// entries kept to track entries recently evicted
+	Default2QGhostEntries = 0.50
+)
+
+// TwoQueueCache is a thread-safe fixed size 2Q cache.
+// 2Q is an enhancement over the standard LRU cache
+// in that it tracks both frequently and recently used
+// entries separately. This avoids a burst in access to new
+// entries from evicting frequently used entries. It adds some
+// additional tracking overhead to the standard LRU cache, and is
+// computationally about 2x the cost, and adds some metadata over
+// head. The ARCCache is similar, but does not require setting any
+// parameters.
+type TwoQueueCache struct {
+	size       int
+	recentSize int
+
+	recent      *simplelru.LRU
+	frequent    *simplelru.LRU
+	recentEvict *simplelru.LRU
+	lock        sync.RWMutex
+}
+
+// New2Q creates a new TwoQueueCache using the default
+// values for the parameters.
+func New2Q(size int) (*TwoQueueCache, error) {
+	return New2QParams(size, Default2QRecentRatio, Default2QGhostEntries)
+}
+
+// New2QParams creates a new TwoQueueCache using the provided
+// parameter values.
+func New2QParams(size int, recentRatio float64, ghostRatio float64) (*TwoQueueCache, error) {
+	if size <= 0 {
+		return nil, fmt.Errorf("invalid size")
+	}
+	if recentRatio < 0.0 || recentRatio > 1.0 {
+		return nil, fmt.Errorf("invalid recent ratio")
+	}
+	if ghostRatio < 0.0 || ghostRatio > 1.0 {
+		return nil, fmt.Errorf("invalid ghost ratio")
+	}
+
+	// Determine the sub-sizes
+	recentSize := int(float64(size) * recentRatio)
+	evictSize := int(float64(size) * ghostRatio)
+
+	// Allocate the LRUs
+	recent, err := simplelru.NewLRU(size, nil)
+	if err != nil {
+		return nil, err
+	}
+	frequent, err := simplelru.NewLRU(size, nil)
+	if err != nil {
+		return nil, err
+	}
+	recentEvict, err := simplelru.NewLRU(evictSize, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	// Initialize the cache
+	c := &TwoQueueCache{
+		size:        size,
+		recentSize:  recentSize,
+		recent:      recent,
+		frequent:    frequent,
+		recentEvict: recentEvict,
+	}
+	return c, nil
+}
+
+func (c *TwoQueueCache) Get(key interface{}) (interface{}, bool) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	// Check if this is a frequent value
+	if val, ok := c.frequent.Get(key); ok {
+		return val, ok
+	}
+
+	// If the value is contained in recent, then we
+	// promote it to frequent
+	if val, ok := c.recent.Peek(key); ok {
+		c.recent.Remove(key)
+		c.frequent.Add(key, val)
+		return val, ok
+	}
+
+	// No hit
+	return nil, false
+}
+
+func (c *TwoQueueCache) Add(key, value interface{}) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	// Check if the value is frequently used already,
+	// and just update the value
+	if c.frequent.Contains(key) {
+		c.frequent.Add(key, value)
+		return
+	}
+
+	// Check if the value is recently used, and promote
+	// the value into the frequent list
+	if c.recent.Contains(key) {
+		c.recent.Remove(key)
+		c.frequent.Add(key, value)
+		return
+	}
+
+	// If the value was recently evicted, add it to the
+	// frequently used list
+	if c.recentEvict.Contains(key) {
+		c.ensureSpace(true)
+		c.recentEvict.Remove(key)
+		c.frequent.Add(key, value)
+		return
+	}
+
+	// Add to the recently seen list
+	c.ensureSpace(false)
+	c.recent.Add(key, value)
+	return
+}
+
+// ensureSpace is used to ensure we have space in the cache
+func (c *TwoQueueCache) ensureSpace(recentEvict bool) {
+	// If we have space, nothing to do
+	recentLen := c.recent.Len()
+	freqLen := c.frequent.Len()
+	if recentLen+freqLen < c.size {
+		return
+	}
+
+	// If the recent buffer is larger than
+	// the target, evict from there
+	if recentLen > 0 && (recentLen > c.recentSize || (recentLen == c.recentSize && !recentEvict)) {
+		k, _, _ := c.recent.RemoveOldest()
+		c.recentEvict.Add(k, nil)
+		return
+	}
+
+	// Remove from the frequent list otherwise
+	c.frequent.RemoveOldest()
+}
+
+func (c *TwoQueueCache) Len() int {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+	return c.recent.Len() + c.frequent.Len()
+}
+
+func (c *TwoQueueCache) Keys() []interface{} {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+	k1 := c.frequent.Keys()
+	k2 := c.recent.Keys()
+	return append(k1, k2...)
+}
+
+func (c *TwoQueueCache) Remove(key interface{}) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+	if c.frequent.Remove(key) {
+		return
+	}
+	if c.recent.Remove(key) {
+		return
+	}
+	if c.recentEvict.Remove(key) {
+		return
+	}
+}
+
+func (c *TwoQueueCache) Purge() {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+	c.recent.Purge()
+	c.frequent.Purge()
+	c.recentEvict.Purge()
+}
+
+func (c *TwoQueueCache) Contains(key interface{}) bool {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+	return c.frequent.Contains(key) || c.recent.Contains(key)
+}
+
+func (c *TwoQueueCache) Peek(key interface{}) (interface{}, bool) {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+	if val, ok := c.frequent.Peek(key); ok {
+		return val, ok
+	}
+	return c.recent.Peek(key)
+}

vendor/github.com/hashicorp/golang-lru/LICENSE

@@ -0,0 +1,362 @@
+Mozilla Public License, version 2.0
+
+1. Definitions
+
+1.1. "Contributor"
+
+     means each individual or legal entity that creates, contributes to the
+     creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+
+     means the combination of the Contributions of others (if any) used by a
+     Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+
+     means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+
+     means Source Code Form to which the initial Contributor has attached the
+     notice in Exhibit A, the Executable Form of such Source Code Form, and
+     Modifications of such Source Code Form, in each case including portions
+     thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+     means
+
+     a. that the initial Contributor has attached the notice described in
+        Exhibit B to the Covered Software; or
+
+     b. that the Covered Software was made available under the terms of
+        version 1.1 or earlier of the License, but not also under the terms of
+        a Secondary License.
+
+1.6. "Executable Form"
+
+     means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+
+     means a work that combines Covered Software with other material, in a
+     separate file or files, that is not Covered Software.
+
+1.8. "License"
+
+     means this document.
+
+1.9. "Licensable"
+
+     means having the right to grant, to the maximum extent possible, whether
+     at the time of the initial grant or subsequently, any and all of the
+     rights conveyed by this License.
+
+1.10. "Modifications"
+
+     means any of the following:
+
+     a. any file in Source Code Form that results from an addition to,
+        deletion from, or modification of the contents of Covered Software; or
+
+     b. any new file in Source Code Form that contains any Covered Software.
+
+1.11. "Patent Claims" of a Contributor
+
+      means any patent claim(s), including without limitation, method,
+      process, and apparatus claims, in any patent Licensable by such
+      Contributor that would be infringed, but for the grant of the License,
+      by the making, using, selling, offering for sale, having made, import,
+      or transfer of either its Contributions or its Contributor Version.
+
+1.12. "Secondary License"
+
+      means either the GNU General Public License, Version 2.0, the GNU Lesser
+      General Public License, Version 2.1, the GNU Affero General Public
+      License, Version 3.0, or any later versions of those licenses.
+
+1.13. "Source Code Form"
+
+      means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+
+      means an individual or a legal entity exercising rights under this
+      License. For legal entities, "You" includes any entity that controls, is
+      controlled by, or is under common control with You. For purposes of this
+      definition, "control" means (a) the power, direct or indirect, to cause
+      the direction or management of such entity, whether by contract or
+      otherwise, or (b) ownership of more than fifty percent (50%) of the
+      outstanding shares or beneficial ownership of such entity.
+
+
+2. License Grants and Conditions
+
+2.1. Grants
+
+     Each Contributor hereby grants You a world-wide, royalty-free,
+     non-exclusive license:
+
+     a. under intellectual property rights (other than patent or trademark)
+        Licensable by such Contributor to use, reproduce, make available,
+        modify, display, perform, distribute, and otherwise exploit its
+        Contributions, either on an unmodified basis, with Modifications, or
+        as part of a Larger Work; and
+
+     b. under Patent Claims of such Contributor to make, use, sell, offer for
+        sale, have made, import, and otherwise transfer either its
+        Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+     The licenses granted in Section 2.1 with respect to any Contribution
+     become effective for each Contribution on the date the Contributor first
+     distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+     The licenses granted in this Section 2 are the only rights granted under
+     this License. No additional rights or licenses will be implied from the
+     distribution or licensing of Covered Software under this License.
+     Notwithstanding Section 2.1(b) above, no patent license is granted by a
+     Contributor:
+
+     a. for any code that a Contributor has removed from Covered Software; or
+
+     b. for infringements caused by: (i) Your and any other third party's
+        modifications of Covered Software, or (ii) the combination of its
+        Contributions with other software (except as part of its Contributor
+        Version); or
+
+     c. under Patent Claims infringed by Covered Software in the absence of
+        its Contributions.
+
+     This License does not grant any rights in the trademarks, service marks,
+     or logos of any Contributor (except as may be necessary to comply with
+     the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+     No Contributor makes additional grants as a result of Your choice to
+     distribute the Covered Software under a subsequent version of this
+     License (see Section 10.2) or under the terms of a Secondary License (if
+     permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+     Each Contributor represents that the Contributor believes its
+     Contributions are its original creation(s) or it has sufficient rights to
+     grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+     This License is not intended to limit any rights You have under
+     applicable copyright doctrines of fair use, fair dealing, or other
+     equivalents.
+
+2.7. Conditions
+
+     Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in
+     Section 2.1.
+
+
+3. Responsibilities
+
+3.1. Distribution of Source Form
+
+     All distribution of Covered Software in Source Code Form, including any
+     Modifications that You create or to which You contribute, must be under
+     the terms of this License. You must inform recipients that the Source
+     Code Form of the Covered Software is governed by the terms of this
+     License, and how they can obtain a copy of this License. You may not
+     attempt to alter or restrict the recipients' rights in the Source Code
+     Form.
+
+3.2. Distribution of Executable Form
+
+     If You distribute Covered Software in Executable Form then:
+
+     a. such Covered Software must also be made available in Source Code Form,
+        as described in Section 3.1, and You must inform recipients of the
+        Executable Form how they can obtain a copy of such Source Code Form by
+        reasonable means in a timely manner, at a charge no more than the cost
+        of distribution to the recipient; and
+
+     b. You may distribute such Executable Form under the terms of this
+        License, or sublicense it under different terms, provided that the
+        license for the Executable Form does not attempt to limit or alter the
+        recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+     You may create and distribute a Larger Work under terms of Your choice,
+     provided that You also comply with the requirements of this License for
+     the Covered Software. If the Larger Work is a combination of Covered
+     Software with a work governed by one or more Secondary Licenses, and the
+     Covered Software is not Incompatible With Secondary Licenses, this
+     License permits You to additionally distribute such Covered Software
+     under the terms of such Secondary License(s), so that the recipient of
+     the Larger Work may, at their option, further distribute the Covered
+     Software under the terms of either this License or such Secondary
+     License(s).
+
+3.4. Notices
+
+     You may not remove or alter the substance of any license notices
+     (including copyright notices, patent notices, disclaimers of warranty, or
+     limitations of liability) contained within the Source Code Form of the
+     Covered Software, except that You may alter any license notices to the
+     extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+     You may choose to offer, and to charge a fee for, warranty, support,
+     indemnity or liability obligations to one or more recipients of Covered
+     Software. However, You may do so only on Your own behalf, and not on
+     behalf of any Contributor. You must make it absolutely clear that any
+     such warranty, support, indemnity, or liability obligation is offered by
+     You alone, and You hereby agree to indemnify every Contributor for any
+     liability incurred by such Contributor as a result of warranty, support,
+     indemnity or liability terms You offer. You may include additional
+     disclaimers of warranty and limitations of liability specific to any
+     jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+
+   If it is impossible for You to comply with any of the terms of this License
+   with respect to some or all of the Covered Software due to statute,
+   judicial order, or regulation then You must: (a) comply with the terms of
+   this License to the maximum extent possible; and (b) describe the
+   limitations and the code they affect. Such description must be placed in a
+   text file included with all distributions of the Covered Software under
+   this License. Except to the extent prohibited by statute or regulation,
+   such description must be sufficiently detailed for a recipient of ordinary
+   skill to be able to understand it.
+
+5. Termination
+
+5.1. The rights granted under this License will terminate automatically if You
+     fail to comply with any of its terms. However, if You become compliant,
+     then the rights granted under this License from a particular Contributor
+     are reinstated (a) provisionally, unless and until such Contributor
+     explicitly and finally terminates Your grants, and (b) on an ongoing
+     basis, if such Contributor fails to notify You of the non-compliance by
+     some reasonable means prior to 60 days after You have come back into
+     compliance. Moreover, Your grants from a particular Contributor are
+     reinstated on an ongoing basis if such Contributor notifies You of the
+     non-compliance by some reasonable means, this is the first time You have
+     received notice of non-compliance with this License from such
+     Contributor, and You become compliant prior to 30 days after Your receipt
+     of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+     infringement claim (excluding declaratory judgment actions,
+     counter-claims, and cross-claims) alleging that a Contributor Version
+     directly or indirectly infringes any patent, then the rights granted to
+     You by any and all Contributors for the Covered Software under Section
+     2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user
+     license agreements (excluding distributors and resellers) which have been
+     validly granted by You or Your distributors under this License prior to
+     termination shall survive termination.
+
+6. Disclaimer of Warranty
+
+   Covered Software is provided under this License on an "as is" basis,
+   without warranty of any kind, either expressed, implied, or statutory,
+   including, without limitation, warranties that the Covered Software is free
+   of defects, merchantable, fit for a particular purpose or non-infringing.
+   The entire risk as to the quality and performance of the Covered Software
+   is with You. Should any Covered Software prove defective in any respect,
+   You (not any Contributor) assume the cost of any necessary servicing,
+   repair, or correction. This disclaimer of warranty constitutes an essential
+   part of this License. No use of  any Covered Software is authorized under
+   this License except under this disclaimer.
+
+7. Limitation of Liability
+
+   Under no circumstances and under no legal theory, whether tort (including
+   negligence), contract, or otherwise, shall any Contributor, or anyone who
+   distributes Covered Software as permitted above, be liable to You for any
+   direct, indirect, special, incidental, or consequential damages of any
+   character including, without limitation, damages for lost profits, loss of
+   goodwill, work stoppage, computer failure or malfunction, or any and all
+   other commercial damages or losses, even if such party shall have been
+   informed of the possibility of such damages. This limitation of liability
+   shall not apply to liability for death or personal injury resulting from
+   such party's negligence to the extent applicable law prohibits such
+   limitation. Some jurisdictions do not allow the exclusion or limitation of
+   incidental or consequential damages, so this exclusion and limitation may
+   not apply to You.
+
+8. Litigation
+
+   Any litigation relating to this License may be brought only in the courts
+   of a jurisdiction where the defendant maintains its principal place of
+   business and such litigation shall be governed by laws of that
+   jurisdiction, without reference to its conflict-of-law provisions. Nothing
+   in this Section shall prevent a party's ability to bring cross-claims or
+   counter-claims.
+
+9. Miscellaneous
+
+   This License represents the complete agreement concerning the subject
+   matter hereof. If any provision of this License is held to be
+   unenforceable, such provision shall be reformed only to the extent
+   necessary to make it enforceable. Any law or regulation which provides that
+   the language of a contract shall be construed against the drafter shall not
+   be used to construe this License against a Contributor.
+
+
+10. Versions of the License
+
+10.1. New Versions
+
+      Mozilla Foundation is the license steward. Except as provided in Section
+      10.3, no one other than the license steward has the right to modify or
+      publish new versions of this License. Each version will be given a
+      distinguishing version number.
+
+10.2. Effect of New Versions
+
+      You may distribute the Covered Software under the terms of the version
+      of the License under which You originally received the Covered Software,
+      or under the terms of any subsequent version published by the license
+      steward.
+
+10.3. Modified Versions
+
+      If you create software not governed by this License, and you want to
+      create a new license for such software, you may create and use a
+      modified version of this License if you rename the license and remove
+      any references to the name of the license steward (except to note that
+      such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+      Licenses If You choose to distribute Source Code Form that is
+      Incompatible With Secondary Licenses under the terms of this version of
+      the License, the notice described in Exhibit B of this License must be
+      attached.
+
+Exhibit A - Source Code Form License Notice
+
+      This Source Code Form is subject to the
+      terms of the Mozilla Public License, v.
+      2.0. If a copy of the MPL was not
+      distributed with this file, You can
+      obtain one at
+      http://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular file,
+then You may include the notice in a location (such as a LICENSE file in a
+relevant directory) where a recipient would be likely to look for such a
+notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+
+      This Source Code Form is "Incompatible
+      With Secondary Licenses", as defined by
+      the Mozilla Public License, v. 2.0.

vendor/github.com/hashicorp/golang-lru/arc.go

@@ -0,0 +1,257 @@
+package lru
+
+import (
+	"sync"
+
+	"github.com/hashicorp/golang-lru/simplelru"
+)
+
+// ARCCache is a thread-safe fixed size Adaptive Replacement Cache (ARC).
+// ARC is an enhancement over the standard LRU cache in that tracks both
+// frequency and recency of use. This avoids a burst in access to new
+// entries from evicting the frequently used older entries. It adds some
+// additional tracking overhead to a standard LRU cache, computationally
+// it is roughly 2x the cost, and the extra memory overhead is linear
+// with the size of the cache. ARC has been patented by IBM, but is
+// similar to the TwoQueueCache (2Q) which requires setting parameters.
+type ARCCache struct {
+	size int // Size is the total capacity of the cache
+	p    int // P is the dynamic preference towards T1 or T2
+
+	t1 *simplelru.LRU // T1 is the LRU for recently accessed items
+	b1 *simplelru.LRU // B1 is the LRU for evictions from t1
+
+	t2 *simplelru.LRU // T2 is the LRU for frequently accessed items
+	b2 *simplelru.LRU // B2 is the LRU for evictions from t2
+
+	lock sync.RWMutex
+}
+
+// NewARC creates an ARC of the given size
+func NewARC(size int) (*ARCCache, error) {
+	// Create the sub LRUs
+	b1, err := simplelru.NewLRU(size, nil)
+	if err != nil {
+		return nil, err
+	}
+	b2, err := simplelru.NewLRU(size, nil)
+	if err != nil {
+		return nil, err
+	}
+	t1, err := simplelru.NewLRU(size, nil)
+	if err != nil {
+		return nil, err
+	}
+	t2, err := simplelru.NewLRU(size, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	// Initialize the ARC
+	c := &ARCCache{
+		size: size,
+		p:    0,
+		t1:   t1,
+		b1:   b1,
+		t2:   t2,
+		b2:   b2,
+	}
+	return c, nil
+}
+
+// Get looks up a key's value from the cache.
+func (c *ARCCache) Get(key interface{}) (interface{}, bool) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	// Ff the value is contained in T1 (recent), then
+	// promote it to T2 (frequent)
+	if val, ok := c.t1.Peek(key); ok {
+		c.t1.Remove(key)
+		c.t2.Add(key, val)
+		return val, ok
+	}
+
+	// Check if the value is contained in T2 (frequent)
+	if val, ok := c.t2.Get(key); ok {
+		return val, ok
+	}
+
+	// No hit
+	return nil, false
+}
+
+// Add adds a value to the cache.
+func (c *ARCCache) Add(key, value interface{}) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	// Check if the value is contained in T1 (recent), and potentially
+	// promote it to frequent T2
+	if c.t1.Contains(key) {
+		c.t1.Remove(key)
+		c.t2.Add(key, value)
+		return
+	}
+
+	// Check if the value is already in T2 (frequent) and update it
+	if c.t2.Contains(key) {
+		c.t2.Add(key, value)
+		return
+	}
+
+	// Check if this value was recently evicted as part of the
+	// recently used list
+	if c.b1.Contains(key) {
+		// T1 set is too small, increase P appropriately
+		delta := 1
+		b1Len := c.b1.Len()
+		b2Len := c.b2.Len()
+		if b2Len > b1Len {
+			delta = b2Len / b1Len
+		}
+		if c.p+delta >= c.size {
+			c.p = c.size
+		} else {
+			c.p += delta
+		}
+
+		// Potentially need to make room in the cache
+		if c.t1.Len()+c.t2.Len() >= c.size {
+			c.replace(false)
+		}
+
+		// Remove from B1
+		c.b1.Remove(key)
+
+		// Add the key to the frequently used list
+		c.t2.Add(key, value)
+		return
+	}
+
+	// Check if this value was recently evicted as part of the
+	// frequently used list
+	if c.b2.Contains(key) {
+		// T2 set is too small, decrease P appropriately
+		delta := 1
+		b1Len := c.b1.Len()
+		b2Len := c.b2.Len()
+		if b1Len > b2Len {
+			delta = b1Len / b2Len
+		}
+		if delta >= c.p {
+			c.p = 0
+		} else {
+			c.p -= delta
+		}
+
+		// Potentially need to make room in the cache
+		if c.t1.Len()+c.t2.Len() >= c.size {
+			c.replace(true)
+		}
+
+		// Remove from B2
+		c.b2.Remove(key)
+
+		// Add the key to the frequntly used list
+		c.t2.Add(key, value)
+		return
+	}
+
+	// Potentially need to make room in the cache
+	if c.t1.Len()+c.t2.Len() >= c.size {
+		c.replace(false)
+	}
+
+	// Keep the size of the ghost buffers trim
+	if c.b1.Len() > c.size-c.p {
+		c.b1.RemoveOldest()
+	}
+	if c.b2.Len() > c.p {
+		c.b2.RemoveOldest()
+	}
+
+	// Add to the recently seen list
+	c.t1.Add(key, value)
+	return
+}
+
+// replace is used to adaptively evict from either T1 or T2
+// based on the current learned value of P
+func (c *ARCCache) replace(b2ContainsKey bool) {
+	t1Len := c.t1.Len()
+	if t1Len > 0 && (t1Len > c.p || (t1Len == c.p && b2ContainsKey)) {
+		k, _, ok := c.t1.RemoveOldest()
+		if ok {
+			c.b1.Add(k, nil)
+		}
+	} else {
+		k, _, ok := c.t2.RemoveOldest()
+		if ok {
+			c.b2.Add(k, nil)
+		}
+	}
+}
+
+// Len returns the number of cached entries
+func (c *ARCCache) Len() int {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+	return c.t1.Len() + c.t2.Len()
+}
+
+// Keys returns all the cached keys
+func (c *ARCCache) Keys() []interface{} {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+	k1 := c.t1.Keys()
+	k2 := c.t2.Keys()
+	return append(k1, k2...)
+}
+
+// Remove is used to purge a key from the cache
+func (c *ARCCache) Remove(key interface{}) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+	if c.t1.Remove(key) {
+		return
+	}
+	if c.t2.Remove(key) {
+		return
+	}
+	if c.b1.Remove(key) {
+		return
+	}
+	if c.b2.Remove(key) {
+		return
+	}
+}
+
+// Purge is used to clear the cache
+func (c *ARCCache) Purge() {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+	c.t1.Purge()
+	c.t2.Purge()
+	c.b1.Purge()
+	c.b2.Purge()
+}
+
+// Contains is used to check if the cache contains a key
+// without updating recency or frequency.
+func (c *ARCCache) Contains(key interface{}) bool {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+	return c.t1.Contains(key) || c.t2.Contains(key)
+}
+
+// Peek is used to inspect the cache value of a key
+// without updating recency or frequency.
+func (c *ARCCache) Peek(key interface{}) (interface{}, bool) {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+	if val, ok := c.t1.Peek(key); ok {
+		return val, ok
+	}
+	return c.t2.Peek(key)
+}

vendor/github.com/hashicorp/golang-lru/lru.go

@@ -0,0 +1,114 @@
+// This package provides a simple LRU cache. It is based on the
+// LRU implementation in groupcache:
+// https://github.com/golang/groupcache/tree/master/lru
+package lru
+
+import (
+	"sync"
+
+	"github.com/hashicorp/golang-lru/simplelru"
+)
+
+// Cache is a thread-safe fixed size LRU cache.
+type Cache struct {
+	lru  *simplelru.LRU
+	lock sync.RWMutex
+}
+
+// New creates an LRU of the given size
+func New(size int) (*Cache, error) {
+	return NewWithEvict(size, nil)
+}
+
+// NewWithEvict constructs a fixed size cache with the given eviction
+// callback.
+func NewWithEvict(size int, onEvicted func(key interface{}, value interface{})) (*Cache, error) {
+	lru, err := simplelru.NewLRU(size, simplelru.EvictCallback(onEvicted))
+	if err != nil {
+		return nil, err
+	}
+	c := &Cache{
+		lru: lru,
+	}
+	return c, nil
+}
+
+// Purge is used to completely clear the cache
+func (c *Cache) Purge() {
+	c.lock.Lock()
+	c.lru.Purge()
+	c.lock.Unlock()
+}
+
+// Add adds a value to the cache.  Returns true if an eviction occurred.
+func (c *Cache) Add(key, value interface{}) bool {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+	return c.lru.Add(key, value)
+}
+
+// Get looks up a key's value from the cache.
+func (c *Cache) Get(key interface{}) (interface{}, bool) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+	return c.lru.Get(key)
+}
+
+// Check if a key is in the cache, without updating the recent-ness
+// or deleting it for being stale.
+func (c *Cache) Contains(key interface{}) bool {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+	return c.lru.Contains(key)
+}
+
+// Returns the key value (or undefined if not found) without updating
+// the "recently used"-ness of the key.
+func (c *Cache) Peek(key interface{}) (interface{}, bool) {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+	return c.lru.Peek(key)
+}
+
+// ContainsOrAdd checks if a key is in the cache  without updating the
+// recent-ness or deleting it for being stale,  and if not, adds the value.
+// Returns whether found and whether an eviction occurred.
+func (c *Cache) ContainsOrAdd(key, value interface{}) (ok, evict bool) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	if c.lru.Contains(key) {
+		return true, false
+	} else {
+		evict := c.lru.Add(key, value)
+		return false, evict
+	}
+}
+
+// Remove removes the provided key from the cache.
+func (c *Cache) Remove(key interface{}) {
+	c.lock.Lock()
+	c.lru.Remove(key)
+	c.lock.Unlock()
+}
+
+// RemoveOldest removes the oldest item from the cache.
+func (c *Cache) RemoveOldest() {
+	c.lock.Lock()
+	c.lru.RemoveOldest()
+	c.lock.Unlock()
+}
+
+// Keys returns a slice of the keys in the cache, from oldest to newest.
+func (c *Cache) Keys() []interface{} {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+	return c.lru.Keys()
+}
+
+// Len returns the number of items in the cache.
+func (c *Cache) Len() int {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+	return c.lru.Len()
+}

vendor/github.com/hashicorp/golang-lru/simplelru/lru.go

@@ -0,0 +1,160 @@
+package simplelru
+
+import (
+	"container/list"
+	"errors"
+)
+
+// EvictCallback is used to get a callback when a cache entry is evicted
+type EvictCallback func(key interface{}, value interface{})
+
+// LRU implements a non-thread safe fixed size LRU cache
+type LRU struct {
+	size      int
+	evictList *list.List
+	items     map[interface{}]*list.Element
+	onEvict   EvictCallback
+}
+
+// entry is used to hold a value in the evictList
+type entry struct {
+	key   interface{}
+	value interface{}
+}
+
+// NewLRU constructs an LRU of the given size
+func NewLRU(size int, onEvict EvictCallback) (*LRU, error) {
+	if size <= 0 {
+		return nil, errors.New("Must provide a positive size")
+	}
+	c := &LRU{
+		size:      size,
+		evictList: list.New(),
+		items:     make(map[interface{}]*list.Element),
+		onEvict:   onEvict,
+	}
+	return c, nil
+}
+
+// Purge is used to completely clear the cache
+func (c *LRU) Purge() {
+	for k, v := range c.items {
+		if c.onEvict != nil {
+			c.onEvict(k, v.Value.(*entry).value)
+		}
+		delete(c.items, k)
+	}
+	c.evictList.Init()
+}
+
+// Add adds a value to the cache.  Returns true if an eviction occurred.
+func (c *LRU) Add(key, value interface{}) bool {
+	// Check for existing item
+	if ent, ok := c.items[key]; ok {
+		c.evictList.MoveToFront(ent)
+		ent.Value.(*entry).value = value
+		return false
+	}
+
+	// Add new item
+	ent := &entry{key, value}
+	entry := c.evictList.PushFront(ent)
+	c.items[key] = entry
+
+	evict := c.evictList.Len() > c.size
+	// Verify size not exceeded
+	if evict {
+		c.removeOldest()
+	}
+	return evict
+}
+
+// Get looks up a key's value from the cache.
+func (c *LRU) Get(key interface{}) (value interface{}, ok bool) {
+	if ent, ok := c.items[key]; ok {
+		c.evictList.MoveToFront(ent)
+		return ent.Value.(*entry).value, true
+	}
+	return
+}
+
+// Check if a key is in the cache, without updating the recent-ness
+// or deleting it for being stale.
+func (c *LRU) Contains(key interface{}) (ok bool) {
+	_, ok = c.items[key]
+	return ok
+}
+
+// Returns the key value (or undefined if not found) without updating
+// the "recently used"-ness of the key.
+func (c *LRU) Peek(key interface{}) (value interface{}, ok bool) {
+	if ent, ok := c.items[key]; ok {
+		return ent.Value.(*entry).value, true
+	}
+	return nil, ok
+}
+
+// Remove removes the provided key from the cache, returning if the
+// key was contained.
+func (c *LRU) Remove(key interface{}) bool {
+	if ent, ok := c.items[key]; ok {
+		c.removeElement(ent)
+		return true
+	}
+	return false
+}
+
+// RemoveOldest removes the oldest item from the cache.
+func (c *LRU) RemoveOldest() (interface{}, interface{}, bool) {
+	ent := c.evictList.Back()
+	if ent != nil {
+		c.removeElement(ent)
+		kv := ent.Value.(*entry)
+		return kv.key, kv.value, true
+	}
+	return nil, nil, false
+}
+
+// GetOldest returns the oldest entry
+func (c *LRU) GetOldest() (interface{}, interface{}, bool) {
+	ent := c.evictList.Back()
+	if ent != nil {
+		kv := ent.Value.(*entry)
+		return kv.key, kv.value, true
+	}
+	return nil, nil, false
+}
+
+// Keys returns a slice of the keys in the cache, from oldest to newest.
+func (c *LRU) Keys() []interface{} {
+	keys := make([]interface{}, len(c.items))
+	i := 0
+	for ent := c.evictList.Back(); ent != nil; ent = ent.Prev() {
+		keys[i] = ent.Value.(*entry).key
+		i++
+	}
+	return keys
+}
+
+// Len returns the number of items in the cache.
+func (c *LRU) Len() int {
+	return c.evictList.Len()
+}
+
+// removeOldest removes the oldest item from the cache.
+func (c *LRU) removeOldest() {
+	ent := c.evictList.Back()
+	if ent != nil {
+		c.removeElement(ent)
+	}
+}
+
+// removeElement is used to remove a given list element from the cache
+func (c *LRU) removeElement(e *list.Element) {
+	c.evictList.Remove(e)
+	kv := e.Value.(*entry)
+	delete(c.items, kv.key)
+	if c.onEvict != nil {
+		c.onEvict(kv.key, kv.value)
+	}
+}

vendor/github.com/labstack/echo/context.go

@@ -494,14 +494,9 @@ func (c *context) Stream(code int, contentType string, r io.Reader) (err error)
 }
 
 func (c *context) File(file string) (err error) {
-	file, err = url.QueryUnescape(file) // Issue #839
-	if err != nil {
-		return
-	}
-
 	f, err := os.Open(file)
 	if err != nil {
-		return ErrNotFound
+		return NotFoundHandler(c)
 	}
 	defer f.Close()
 
@@ -510,7 +505,7 @@ func (c *context) File(file string) (err error) {
 		file = filepath.Join(file, indexPage)
 		f, err = os.Open(file)
 		if err != nil {
-			return ErrNotFound
+			return NotFoundHandler(c)
 		}
 		defer f.Close()
 		if fi, err = f.Stat(); err != nil {
@@ -530,7 +525,7 @@ func (c *context) Inline(file, name string) (err error) {
 }
 
 func (c *context) contentDisposition(file, name, dispositionType string) (err error) {
-	c.response.Header().Set(HeaderContentDisposition, fmt.Sprintf("%s; filename=%s", dispositionType, name))
+	c.response.Header().Set(HeaderContentDisposition, fmt.Sprintf("%s; filename=%q", dispositionType, name))
 	c.File(file)
 	return
 }

vendor/github.com/labstack/echo/echo.go

@@ -72,6 +72,7 @@ type (
 		TLSServer        *http.Server
 		Listener         net.Listener
 		TLSListener      net.Listener
+		AutoTLSManager   autocert.Manager
 		DisableHTTP2     bool
 		Debug            bool
 		HideBanner       bool
@@ -79,22 +80,22 @@ type (
 		Binder           Binder
 		Validator        Validator
 		Renderer         Renderer
-		AutoTLSManager   autocert.Manager
 		// Mutex            sync.RWMutex
 		Logger Logger
 	}
 
 	// Route contains a handler and information for matching against requests.
 	Route struct {
-		Method  string `json:"method"`
-		Path    string `json:"path"`
-		Handler string `json:"handler"`
+		Method string `json:"method"`
+		Path   string `json:"path"`
+		Name   string `json:"name"`
 	}
 
 	// HTTPError represents an error that occurred while handling a request.
 	HTTPError struct {
 		Code    int
 		Message interface{}
+		Inner   error // Stores the error returned by an external dependency
 	}
 
 	// MiddlewareFunc defines a function to process middleware.
@@ -121,7 +122,7 @@ type (
 
 	// i is the interface for Echo and Group.
 	i interface {
-		GET(string, HandlerFunc, ...MiddlewareFunc)
+		GET(string, HandlerFunc, ...MiddlewareFunc) *Route
 	}
 )
 
@@ -212,7 +213,7 @@ const (
 )
 
 const (
-	version = "3.1.0"
+	version = "3.2.5"
 	website = "https://echo.labstack.com"
 	// http://patorjk.com/software/taag/#p=display&f=Small%20Slant&t=Echo
 	banner = `
@@ -282,7 +283,7 @@ func New() (e *Echo) {
 	e.TLSServer.Handler = e
 	e.HTTPErrorHandler = e.DefaultHTTPErrorHandler
 	e.Binder = &DefaultBinder{}
-	e.Logger.SetLevel(log.OFF)
+	e.Logger.SetLevel(log.ERROR)
 	e.stdLogger = stdLog.New(e.Logger.Output(), e.Logger.Prefix()+": ", 0)
 	e.pool.New = func() interface{} {
 		return e.NewContext(nil, nil)
@@ -319,6 +320,9 @@ func (e *Echo) DefaultHTTPErrorHandler(err error, c Context) {
 	if he, ok := err.(*HTTPError); ok {
 		code = he.Code
 		msg = he.Message
+		if he.Inner != nil {
+			msg = fmt.Sprintf("%v, %v", err, he.Inner)
+		}
 	} else if e.Debug {
 		msg = err.Error()
 	} else {
@@ -328,19 +332,19 @@ func (e *Echo) DefaultHTTPErrorHandler(err error, c Context) {
 		msg = Map{"message": msg}
 	}
 
+	e.Logger.Error(err)
+
+	// Send response
 	if !c.Response().Committed {
 		if c.Request().Method == HEAD { // Issue #608
-			if err := c.NoContent(code); err != nil {
-				goto ERROR
-			}
+			err = c.NoContent(code)
 		} else {
-			if err := c.JSON(code, msg); err != nil {
-				goto ERROR
-			}
+			err = c.JSON(code, msg)
+		}
+		if err != nil {
+			e.Logger.Error(err)
 		}
 	}
-ERROR:
-	e.Logger.Error(err)
 }
 
 // Pre adds middleware to the chain which is run before router.
@@ -355,104 +359,114 @@ func (e *Echo) Use(middleware ...MiddlewareFunc) {
 
 // CONNECT registers a new CONNECT route for a path with matching handler in the
 // router with optional route-level middleware.
-func (e *Echo) CONNECT(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	e.add(CONNECT, path, h, m...)
+func (e *Echo) CONNECT(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return e.Add(CONNECT, path, h, m...)
 }
 
 // DELETE registers a new DELETE route for a path with matching handler in the router
 // with optional route-level middleware.
-func (e *Echo) DELETE(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	e.add(DELETE, path, h, m...)
+func (e *Echo) DELETE(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return e.Add(DELETE, path, h, m...)
 }
 
 // GET registers a new GET route for a path with matching handler in the router
 // with optional route-level middleware.
-func (e *Echo) GET(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	e.add(GET, path, h, m...)
+func (e *Echo) GET(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return e.Add(GET, path, h, m...)
 }
 
 // HEAD registers a new HEAD route for a path with matching handler in the
 // router with optional route-level middleware.
-func (e *Echo) HEAD(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	e.add(HEAD, path, h, m...)
+func (e *Echo) HEAD(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return e.Add(HEAD, path, h, m...)
 }
 
 // OPTIONS registers a new OPTIONS route for a path with matching handler in the
 // router with optional route-level middleware.
-func (e *Echo) OPTIONS(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	e.add(OPTIONS, path, h, m...)
+func (e *Echo) OPTIONS(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return e.Add(OPTIONS, path, h, m...)
 }
 
 // PATCH registers a new PATCH route for a path with matching handler in the
 // router with optional route-level middleware.
-func (e *Echo) PATCH(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	e.add(PATCH, path, h, m...)
+func (e *Echo) PATCH(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return e.Add(PATCH, path, h, m...)
 }
 
 // POST registers a new POST route for a path with matching handler in the
 // router with optional route-level middleware.
-func (e *Echo) POST(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	e.add(POST, path, h, m...)
+func (e *Echo) POST(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return e.Add(POST, path, h, m...)
 }
 
 // PUT registers a new PUT route for a path with matching handler in the
 // router with optional route-level middleware.
-func (e *Echo) PUT(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	e.add(PUT, path, h, m...)
+func (e *Echo) PUT(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return e.Add(PUT, path, h, m...)
 }
 
 // TRACE registers a new TRACE route for a path with matching handler in the
 // router with optional route-level middleware.
-func (e *Echo) TRACE(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	e.add(TRACE, path, h, m...)
+func (e *Echo) TRACE(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return e.Add(TRACE, path, h, m...)
 }
 
 // Any registers a new route for all HTTP methods and path with matching handler
 // in the router with optional route-level middleware.
-func (e *Echo) Any(path string, handler HandlerFunc, middleware ...MiddlewareFunc) {
+func (e *Echo) Any(path string, handler HandlerFunc, middleware ...MiddlewareFunc) []*Route {
+	routes := make([]*Route, 0)
 	for _, m := range methods {
-		e.add(m, path, handler, middleware...)
+		routes = append(routes, e.Add(m, path, handler, middleware...))
 	}
+	return routes
 }
 
 // Match registers a new route for multiple HTTP methods and path with matching
 // handler in the router with optional route-level middleware.
-func (e *Echo) Match(methods []string, path string, handler HandlerFunc, middleware ...MiddlewareFunc) {
+func (e *Echo) Match(methods []string, path string, handler HandlerFunc, middleware ...MiddlewareFunc) []*Route {
+	routes := make([]*Route, 0)
 	for _, m := range methods {
-		e.add(m, path, handler, middleware...)
+		routes = append(routes, e.Add(m, path, handler, middleware...))
 	}
+	return routes
 }
 
 // Static registers a new route with path prefix to serve static files from the
 // provided root directory.
-func (e *Echo) Static(prefix, root string) {
+func (e *Echo) Static(prefix, root string) *Route {
 	if root == "" {
 		root = "." // For security we want to restrict to CWD.
 	}
-	static(e, prefix, root)
+	return static(e, prefix, root)
 }
 
-func static(i i, prefix, root string) {
+func static(i i, prefix, root string) *Route {
 	h := func(c Context) error {
-		name := filepath.Join(root, path.Clean("/"+c.Param("*"))) // "/"+ for security
+		p, err := PathUnescape(c.Param("*"))
+		if err != nil {
+			return err
+		}
+		name := filepath.Join(root, path.Clean("/"+p)) // "/"+ for security
 		return c.File(name)
 	}
 	i.GET(prefix, h)
 	if prefix == "/" {
-		i.GET(prefix+"*", h)
-	} else {
-		i.GET(prefix+"/*", h)
+		return i.GET(prefix+"*", h)
 	}
+
+	return i.GET(prefix+"/*", h)
 }
 
 // File registers a new route with path to serve a static file.
-func (e *Echo) File(path, file string) {
-	e.GET(path, func(c Context) error {
+func (e *Echo) File(path, file string) *Route {
+	return e.GET(path, func(c Context) error {
 		return c.File(file)
 	})
 }
 
-func (e *Echo) add(method, path string, handler HandlerFunc, middleware ...MiddlewareFunc) {
+// Add registers a new route for an HTTP method and path with matching handler
+// in the router with optional route-level middleware.
+func (e *Echo) Add(method, path string, handler HandlerFunc, middleware ...MiddlewareFunc) *Route {
 	name := handlerName(handler)
 	e.router.Add(method, path, func(c Context) error {
 		h := handler
@@ -463,11 +477,12 @@ func (e *Echo) add(method, path string, handler HandlerFunc, middleware ...Middl
 		return h(c)
 	})
 	r := &Route{
-		Method:  method,
-		Path:    path,
-		Handler: name,
+		Method: method,
+		Path:   path,
+		Name:   name,
 	}
 	e.router.routes[method+path] = r
+	return r
 }
 
 // Group creates a new router group with prefix and optional group-level middleware.
@@ -479,12 +494,22 @@ func (e *Echo) Group(prefix string, m ...MiddlewareFunc) (g *Group) {
 
 // URI generates a URI from handler.
 func (e *Echo) URI(handler HandlerFunc, params ...interface{}) string {
+	name := handlerName(handler)
+	return e.Reverse(name, params...)
+}
+
+// URL is an alias for `URI` function.
+func (e *Echo) URL(h HandlerFunc, params ...interface{}) string {
+	return e.URI(h, params...)
+}
+
+// Reverse generates an URL from route name and provided parameters.
+func (e *Echo) Reverse(name string, params ...interface{}) string {
 	uri := new(bytes.Buffer)
 	ln := len(params)
 	n := 0
-	name := handlerName(handler)
 	for _, r := range e.router.routes {
-		if r.Handler == name {
+		if r.Name == name {
 			for i, l := 0, len(r.Path); i < l; i++ {
 				if r.Path[i] == ':' && n < ln {
 					for ; i < l && r.Path[i] != '/'; i++ {
@@ -502,11 +527,6 @@ func (e *Echo) URI(handler HandlerFunc, params ...interface{}) string {
 	return uri.String()
 }
 
-// URL is an alias for `URI` function.
-func (e *Echo) URL(h HandlerFunc, params ...interface{}) string {
-	return e.URI(h, params...)
-}
-
 // Routes returns the registered routes.
 func (e *Echo) Routes() []*Route {
 	routes := []*Route{}
@@ -653,7 +673,7 @@ func NewHTTPError(code int, message ...interface{}) *HTTPError {
 
 // Error makes it compatible with `error` interface.
 func (he *HTTPError) Error() string {
-	return fmt.Sprintf("code=%d, message=%s", he.Code, he.Message)
+	return fmt.Sprintf("code=%d, message=%v", he.Code, he.Message)
 }
 
 // WrapHandler wraps `http.Handler` into `echo.HandlerFunc`.

vendor/github.com/labstack/echo/group.go

@@ -21,66 +21,66 @@ func (g *Group) Use(middleware ...MiddlewareFunc) {
 	// Allow all requests to reach the group as they might get dropped if router
 	// doesn't find a match, making none of the group middleware process.
 	g.echo.Any(path.Clean(g.prefix+"/*"), func(c Context) error {
-		return ErrNotFound
+		return NotFoundHandler(c)
 	}, g.middleware...)
 }
 
 // CONNECT implements `Echo#CONNECT()` for sub-routes within the Group.
-func (g *Group) CONNECT(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	g.add(CONNECT, path, h, m...)
+func (g *Group) CONNECT(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return g.Add(CONNECT, path, h, m...)
 }
 
 // DELETE implements `Echo#DELETE()` for sub-routes within the Group.
-func (g *Group) DELETE(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	g.add(DELETE, path, h, m...)
+func (g *Group) DELETE(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return g.Add(DELETE, path, h, m...)
 }
 
 // GET implements `Echo#GET()` for sub-routes within the Group.
-func (g *Group) GET(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	g.add(GET, path, h, m...)
+func (g *Group) GET(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return g.Add(GET, path, h, m...)
 }
 
 // HEAD implements `Echo#HEAD()` for sub-routes within the Group.
-func (g *Group) HEAD(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	g.add(HEAD, path, h, m...)
+func (g *Group) HEAD(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return g.Add(HEAD, path, h, m...)
 }
 
 // OPTIONS implements `Echo#OPTIONS()` for sub-routes within the Group.
-func (g *Group) OPTIONS(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	g.add(OPTIONS, path, h, m...)
+func (g *Group) OPTIONS(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return g.Add(OPTIONS, path, h, m...)
 }
 
 // PATCH implements `Echo#PATCH()` for sub-routes within the Group.
-func (g *Group) PATCH(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	g.add(PATCH, path, h, m...)
+func (g *Group) PATCH(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return g.Add(PATCH, path, h, m...)
 }
 
 // POST implements `Echo#POST()` for sub-routes within the Group.
-func (g *Group) POST(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	g.add(POST, path, h, m...)
+func (g *Group) POST(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return g.Add(POST, path, h, m...)
 }
 
 // PUT implements `Echo#PUT()` for sub-routes within the Group.
-func (g *Group) PUT(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	g.add(PUT, path, h, m...)
+func (g *Group) PUT(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return g.Add(PUT, path, h, m...)
 }
 
 // TRACE implements `Echo#TRACE()` for sub-routes within the Group.
-func (g *Group) TRACE(path string, h HandlerFunc, m ...MiddlewareFunc) {
-	g.add(TRACE, path, h, m...)
+func (g *Group) TRACE(path string, h HandlerFunc, m ...MiddlewareFunc) *Route {
+	return g.Add(TRACE, path, h, m...)
 }
 
 // Any implements `Echo#Any()` for sub-routes within the Group.
 func (g *Group) Any(path string, handler HandlerFunc, middleware ...MiddlewareFunc) {
 	for _, m := range methods {
-		g.add(m, path, handler, middleware...)
+		g.Add(m, path, handler, middleware...)
 	}
 }
 
 // Match implements `Echo#Match()` for sub-routes within the Group.
 func (g *Group) Match(methods []string, path string, handler HandlerFunc, middleware ...MiddlewareFunc) {
 	for _, m := range methods {
-		g.add(m, path, handler, middleware...)
+		g.Add(m, path, handler, middleware...)
 	}
 }
 
@@ -102,12 +102,13 @@ func (g *Group) File(path, file string) {
 	g.echo.File(g.prefix+path, file)
 }
 
-func (g *Group) add(method, path string, handler HandlerFunc, middleware ...MiddlewareFunc) {
+// Add implements `Echo#Add()` for sub-routes within the Group.
+func (g *Group) Add(method, path string, handler HandlerFunc, middleware ...MiddlewareFunc) *Route {
 	// Combine into a new slice to avoid accidentally passing the same slice for
 	// multiple routes, which would lead to later add() calls overwriting the
 	// middleware from earlier calls.
 	m := []MiddlewareFunc{}
 	m = append(m, g.middleware...)
 	m = append(m, middleware...)
-	g.echo.add(method, g.prefix+path, handler, m...)
+	return g.echo.Add(method, g.prefix+path, handler, m...)
 }

vendor/github.com/labstack/echo/middleware/basic_auth.go

@@ -3,6 +3,7 @@ package middleware
 import (
 	"encoding/base64"
 	"strconv"
+	"strings"
 
 	"github.com/labstack/echo"
 )
@@ -27,7 +28,7 @@ type (
 )
 
 const (
-	basic        = "Basic"
+	basic        = "basic"
 	defaultRealm = "Restricted"
 )
 
@@ -54,7 +55,7 @@ func BasicAuth(fn BasicAuthValidator) echo.MiddlewareFunc {
 func BasicAuthWithConfig(config BasicAuthConfig) echo.MiddlewareFunc {
 	// Defaults
 	if config.Validator == nil {
-		panic("basic-auth middleware requires a validator function")
+		panic("echo: basic-auth middleware requires a validator function")
 	}
 	if config.Skipper == nil {
 		config.Skipper = DefaultBasicAuthConfig.Skipper
@@ -72,7 +73,7 @@ func BasicAuthWithConfig(config BasicAuthConfig) echo.MiddlewareFunc {
 			auth := c.Request().Header.Get(echo.HeaderAuthorization)
 			l := len(basic)
 
-			if len(auth) > l+1 && auth[:l] == basic {
+			if len(auth) > l+1 && strings.ToLower(auth[:l]) == basic {
 				b, err := base64.StdEncoding.DecodeString(auth[l+1:])
 				if err != nil {
 					return err

vendor/github.com/labstack/echo/middleware/body_dump.go

@@ -0,0 +1,112 @@
+package middleware
+
+import (
+	"bufio"
+	"bytes"
+	"io/ioutil"
+	"net"
+	"net/http"
+
+	"io"
+
+	"github.com/labstack/echo"
+)
+
+type (
+	// BodyDumpConfig defines the config for BodyDump middleware.
+	BodyDumpConfig struct {
+		// Skipper defines a function to skip middleware.
+		Skipper Skipper
+
+		// Handler receives request and response payload.
+		// Required.
+		Handler BodyDumpHandler
+	}
+
+	// BodyDumpHandler receives the request and response payload.
+	BodyDumpHandler func(echo.Context, []byte, []byte)
+
+	bodyDumpResponseWriter struct {
+		io.Writer
+		http.ResponseWriter
+	}
+)
+
+var (
+	// DefaultBodyDumpConfig is the default Gzip middleware config.
+	DefaultBodyDumpConfig = BodyDumpConfig{
+		Skipper: DefaultSkipper,
+	}
+)
+
+// BodyDump returns a BodyDump middleware.
+//
+// BodyLimit middleware captures the request and response payload and calls the
+// registered handler.
+func BodyDump(handler BodyDumpHandler) echo.MiddlewareFunc {
+	c := DefaultBodyDumpConfig
+	c.Handler = handler
+	return BodyDumpWithConfig(c)
+}
+
+// BodyDumpWithConfig returns a BodyDump middleware with config.
+// See: `BodyDump()`.
+func BodyDumpWithConfig(config BodyDumpConfig) echo.MiddlewareFunc {
+	// Defaults
+	if config.Handler == nil {
+		panic("echo: body-dump middleware requires a handler function")
+	}
+	if config.Skipper == nil {
+		config.Skipper = DefaultBodyDumpConfig.Skipper
+	}
+
+	return func(next echo.HandlerFunc) echo.HandlerFunc {
+		return func(c echo.Context) (err error) {
+			if config.Skipper(c) {
+				return next(c)
+			}
+
+			// Request
+			reqBody := []byte{}
+			if c.Request().Body != nil { // Read
+				reqBody, _ = ioutil.ReadAll(c.Request().Body)
+			}
+			c.Request().Body = ioutil.NopCloser(bytes.NewBuffer(reqBody)) // Reset
+
+			// Response
+			resBody := new(bytes.Buffer)
+			mw := io.MultiWriter(c.Response().Writer, resBody)
+			writer := &bodyDumpResponseWriter{Writer: mw, ResponseWriter: c.Response().Writer}
+			c.Response().Writer = writer
+
+			if err = next(c); err != nil {
+				c.Error(err)
+			}
+
+			// Callback
+			config.Handler(c, reqBody, resBody.Bytes())
+
+			return
+		}
+	}
+}
+
+func (w *bodyDumpResponseWriter) WriteHeader(code int) {
+	w.ResponseWriter.WriteHeader(code)
+}
+
+func (w *bodyDumpResponseWriter) Write(b []byte) (int, error) {
+	return w.Writer.Write(b)
+}
+
+func (w *bodyDumpResponseWriter) Flush() {
+	w.ResponseWriter.(http.Flusher).Flush()
+}
+
+func (w *bodyDumpResponseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
+	return w.ResponseWriter.(http.Hijacker).Hijack()
+}
+
+func (w *bodyDumpResponseWriter) CloseNotify() <-chan bool {
+	return w.ResponseWriter.(http.CloseNotifier).CloseNotify()
+}

vendor/github.com/labstack/echo/middleware/body_limit.go

@@ -30,7 +30,7 @@ type (
 )
 
 var (
-	// DefaultBodyLimitConfig is the default Gzip middleware config.
+	// DefaultBodyLimitConfig is the default BodyLimit middleware config.
 	DefaultBodyLimitConfig = BodyLimitConfig{
 		Skipper: DefaultSkipper,
 	}
@@ -60,7 +60,7 @@ func BodyLimitWithConfig(config BodyLimitConfig) echo.MiddlewareFunc {
 
 	limit, err := bytes.Parse(config.Limit)
 	if err != nil {
-		panic(fmt.Errorf("invalid body-limit=%s", config.Limit))
+		panic(fmt.Errorf("echo: invalid body-limit=%s", config.Limit))
 	}
 	config.limit = limit
 	pool := limitedReaderPool(config)

vendor/github.com/labstack/echo/middleware/compress.go

@@ -67,7 +67,7 @@ func GzipWithConfig(config GzipConfig) echo.MiddlewareFunc {
 			res := c.Response()
 			res.Header().Add(echo.HeaderVary, echo.HeaderAcceptEncoding)
 			if strings.Contains(c.Request().Header.Get(echo.HeaderAcceptEncoding), gzipScheme) {
-				res.Header().Add(echo.HeaderContentEncoding, gzipScheme) // Issue #806
+				res.Header().Set(echo.HeaderContentEncoding, gzipScheme) // Issue #806
 				rw := res.Writer
 				w, err := gzip.NewWriterLevel(rw, config.Level)
 				if err != nil {
@@ -98,6 +98,7 @@ func (w *gzipResponseWriter) WriteHeader(code int) {
 	if code == http.StatusNoContent { // Issue #489
 		w.ResponseWriter.Header().Del(echo.HeaderContentEncoding)
 	}
+	w.Header().Del(echo.HeaderContentLength) // Issue #444
 	w.ResponseWriter.WriteHeader(code)
 }
 

vendor/github.com/labstack/echo/middleware/jwt.go

@@ -1,7 +1,6 @@
 package middleware
 
 import (
-	"errors"
 	"fmt"
 	"net/http"
 	"reflect"
@@ -57,6 +56,12 @@ const (
 	AlgorithmHS256 = "HS256"
 )
 
+// Errors
+var (
+	ErrJWTMissing = echo.NewHTTPError(http.StatusBadRequest, "Missing or malformed jwt")
+	ErrJWTInvalid = echo.NewHTTPError(http.StatusUnauthorized, "Invalid or expired jwt")
+)
+
 var (
 	// DefaultJWTConfig is the default JWT auth middleware config.
 	DefaultJWTConfig = JWTConfig{
@@ -77,7 +82,7 @@ var (
 //
 // See: https://jwt.io/introduction
 // See `JWTConfig.TokenLookup`
-func JWT(key []byte) echo.MiddlewareFunc {
+func JWT(key interface{}) echo.MiddlewareFunc {
 	c := DefaultJWTConfig
 	c.SigningKey = key
 	return JWTWithConfig(c)
@@ -134,14 +139,15 @@ func JWTWithConfig(config JWTConfig) echo.MiddlewareFunc {
 
 			auth, err := extractor(c)
 			if err != nil {
-				return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+				return err
 			}
 			token := new(jwt.Token)
 			// Issue #647, #656
 			if _, ok := config.Claims.(jwt.MapClaims); ok {
 				token, err = jwt.Parse(auth, config.keyFunc)
 			} else {
-				claims := reflect.ValueOf(config.Claims).Interface().(jwt.Claims)
+				t := reflect.ValueOf(config.Claims).Type().Elem()
+				claims := reflect.New(t).Interface().(jwt.Claims)
 				token, err = jwt.ParseWithClaims(auth, claims, config.keyFunc)
 			}
 			if err == nil && token.Valid {
@@ -149,7 +155,11 @@ func JWTWithConfig(config JWTConfig) echo.MiddlewareFunc {
 				c.Set(config.ContextKey, token)
 				return next(c)
 			}
-			return echo.ErrUnauthorized
+			return &echo.HTTPError{
+				Code:    ErrJWTInvalid.Code,
+				Message: ErrJWTInvalid.Message,
+				Inner:   err,
+			}
 		}
 	}
 }
@@ -162,7 +172,7 @@ func jwtFromHeader(header string, authScheme string) jwtExtractor {
 		if len(auth) > l+1 && auth[:l] == authScheme {
 			return auth[l+1:], nil
 		}
-		return "", errors.New("Missing or invalid jwt in the request header")
+		return "", ErrJWTMissing
 	}
 }
 
@@ -171,7 +181,7 @@ func jwtFromQuery(param string) jwtExtractor {
 	return func(c echo.Context) (string, error) {
 		token := c.QueryParam(param)
 		if token == "" {
-			return "", errors.New("Missing jwt in the query string")
+			return "", ErrJWTMissing
 		}
 		return token, nil
 	}
@@ -182,7 +192,7 @@ func jwtFromCookie(name string) jwtExtractor {
 	return func(c echo.Context) (string, error) {
 		cookie, err := c.Cookie(name)
 		if err != nil {
-			return "", errors.New("Missing jwt in the cookie")
+			return "", ErrJWTMissing
 		}
 		return cookie.Value, nil
 	}

vendor/github.com/labstack/echo/middleware/key_auth.go

@@ -72,7 +72,7 @@ func KeyAuthWithConfig(config KeyAuthConfig) echo.MiddlewareFunc {
 		config.KeyLookup = DefaultKeyAuthConfig.KeyLookup
 	}
 	if config.Validator == nil {
-		panic("key-auth middleware requires a validator function")
+		panic("echo: key-auth middleware requires a validator function")
 	}
 
 	// Initialize

vendor/github.com/labstack/echo/middleware/proxy.go

@@ -1,7 +1,6 @@
 package middleware
 
 import (
-	"errors"
 	"fmt"
 	"io"
 	"math/rand"
@@ -54,35 +53,38 @@ type (
 	}
 )
 
+var (
+	// DefaultProxyConfig is the default Proxy middleware config.
+	DefaultProxyConfig = ProxyConfig{
+		Skipper: DefaultSkipper,
+	}
+)
+
 func proxyHTTP(t *ProxyTarget) http.Handler {
 	return httputil.NewSingleHostReverseProxy(t.URL)
 }
 
 func proxyRaw(t *ProxyTarget, c echo.Context) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		h, ok := w.(http.Hijacker)
-		if !ok {
-			c.Error(errors.New("proxy raw, not a hijacker"))
-			return
-		}
-		in, _, err := h.Hijack()
+		in, _, err := c.Response().Hijack()
 		if err != nil {
-			c.Error(fmt.Errorf("proxy raw, hijack error=%v, url=%s", r.URL, err))
+			c.Error(fmt.Errorf("proxy raw, hijack error=%v, url=%s", t.URL, err))
 			return
 		}
 		defer in.Close()
 
 		out, err := net.Dial("tcp", t.URL.Host)
 		if err != nil {
-			he := echo.NewHTTPError(http.StatusBadGateway, fmt.Sprintf("proxy raw, dial error=%v, url=%s", r.URL, err))
+			he := echo.NewHTTPError(http.StatusBadGateway, fmt.Sprintf("proxy raw, dial error=%v, url=%s", t.URL, err))
 			c.Error(he)
 			return
 		}
 		defer out.Close()
 
+		// Write header
 		err = r.Write(out)
 		if err != nil {
-			he := echo.NewHTTPError(http.StatusBadGateway, fmt.Sprintf("proxy raw, request copy error=%v, url=%s", r.URL, err))
+			he := echo.NewHTTPError(http.StatusBadGateway, fmt.Sprintf("proxy raw, request header copy error=%v, url=%s", t.URL, err))
 			c.Error(he)
 			return
 		}
@@ -97,7 +99,7 @@ func proxyRaw(t *ProxyTarget, c echo.Context) http.Handler {
 		go cp(in, out)
 		err = <-errc
 		if err != nil && err != io.EOF {
-			c.Logger().Errorf("proxy raw, error=%v, url=%s", r.URL, err)
+			c.Logger().Errorf("proxy raw, copy body error=%v, url=%s", t.URL, err)
 		}
 	})
 }
@@ -118,8 +120,18 @@ func (r *RoundRobinBalancer) Next() *ProxyTarget {
 	return t
 }
 
-// Proxy returns an HTTP/WebSocket reverse proxy middleware.
-func Proxy(config ProxyConfig) echo.MiddlewareFunc {
+// Proxy returns a Proxy middleware.
+//
+// Proxy middleware forwards the request to upstream server using a configured load balancing technique.
+func Proxy(balancer ProxyBalancer) echo.MiddlewareFunc {
+	c := DefaultProxyConfig
+	c.Balancer = balancer
+	return ProxyWithConfig(c)
+}
+
+// ProxyWithConfig returns a Proxy middleware with config.
+// See: `Proxy()`
+func ProxyWithConfig(config ProxyConfig) echo.MiddlewareFunc {
 	// Defaults
 	if config.Skipper == nil {
 		config.Skipper = DefaultLoggerConfig.Skipper
@@ -130,6 +142,10 @@ func Proxy(config ProxyConfig) echo.MiddlewareFunc {
 
 	return func(next echo.HandlerFunc) echo.HandlerFunc {
 		return func(c echo.Context) (err error) {
+			if config.Skipper(c) {
+				return next(c)
+			}
+
 			req := c.Request()
 			res := c.Response()
 			tgt := config.Balancer.Next()

vendor/github.com/labstack/echo/middleware/recover.go

@@ -5,7 +5,6 @@ import (
 	"runtime"
 
 	"github.com/labstack/echo"
-	"github.com/labstack/gommon/color"
 )
 
 type (
@@ -64,17 +63,14 @@ func RecoverWithConfig(config RecoverConfig) echo.MiddlewareFunc {
 
 			defer func() {
 				if r := recover(); r != nil {
-					var err error
-					switch r := r.(type) {
-					case error:
-						err = r
-					default:
+					err, ok := r.(error)
+					if !ok {
 						err = fmt.Errorf("%v", r)
 					}
 					stack := make([]byte, config.StackSize)
 					length := runtime.Stack(stack, !config.DisableStackAll)
 					if !config.DisablePrintStack {
-						c.Logger().Printf("[%s] %s %s\n", color.Red("PANIC RECOVER"), err, stack[:length])
+						c.Logger().Printf("[PANIC RECOVER] %v %s\n", err, stack[:length])
 					}
 					c.Error(err)
 				}

vendor/github.com/labstack/echo/middleware/static.go

@@ -2,6 +2,7 @@ package middleware
 
 import (
 	"fmt"
+	"net/http"
 	"os"
 	"path"
 	"path/filepath"
@@ -66,7 +67,7 @@ func StaticWithConfig(config StaticConfig) echo.MiddlewareFunc {
 	}
 
 	return func(next echo.HandlerFunc) echo.HandlerFunc {
-		return func(c echo.Context) error {
+		return func(c echo.Context) (err error) {
 			if config.Skipper(c) {
 				return next(c)
 			}
@@ -75,17 +76,25 @@ func StaticWithConfig(config StaticConfig) echo.MiddlewareFunc {
 			if strings.HasSuffix(c.Path(), "*") { // When serving from a group, e.g. `/static*`.
 				p = c.Param("*")
 			}
+			p, err = echo.PathUnescape(p)
+			if err != nil {
+				return
+			}
 			name := filepath.Join(config.Root, path.Clean("/"+p)) // "/"+ for security
 
 			fi, err := os.Stat(name)
 			if err != nil {
 				if os.IsNotExist(err) {
-					if config.HTML5 && path.Ext(p) == "" {
-						return c.File(filepath.Join(config.Root, config.Index))
+					if err = next(c); err != nil {
+						if he, ok := err.(*echo.HTTPError); ok {
+							if config.HTML5 && he.Code == http.StatusNotFound {
+								return c.File(filepath.Join(config.Root, config.Index))
+							}
+						}
+						return
 					}
-					return next(c)
 				}
-				return err
+				return
 			}
 
 			if fi.IsDir() {
@@ -99,7 +108,7 @@ func StaticWithConfig(config StaticConfig) echo.MiddlewareFunc {
 					if os.IsNotExist(err) {
 						return next(c)
 					}
-					return err
+					return
 				}
 
 				return c.File(index)
@@ -110,20 +119,20 @@ func StaticWithConfig(config StaticConfig) echo.MiddlewareFunc {
 	}
 }
 
-func listDir(name string, res *echo.Response) error {
+func listDir(name string, res *echo.Response) (err error) {
 	dir, err := os.Open(name)
 	if err != nil {
-		return err
+		return
 	}
 	dirs, err := dir.Readdir(-1)
 	if err != nil {
-		return err
+		return
 	}
 
 	// Create a directory index
 	res.Header().Set(echo.HeaderContentType, echo.MIMETextHTMLCharsetUTF8)
 	if _, err = fmt.Fprintf(res, "<pre>\n"); err != nil {
-		return err
+		return
 	}
 	for _, d := range dirs {
 		name := d.Name()
@@ -133,9 +142,9 @@ func listDir(name string, res *echo.Response) error {
 			name += "/"
 		}
 		if _, err = fmt.Fprintf(res, "<a href=\"%s\" style=\"color: %s;\">%s</a>\n", name, color, name); err != nil {
-			return err
+			return
 		}
 	}
 	_, err = fmt.Fprintf(res, "</pre>\n")
-	return err
+	return
 }

vendor/github.com/labstack/echo/response.go

@@ -11,11 +11,12 @@ type (
 	// by an HTTP handler to construct an HTTP response.
 	// See: https://golang.org/pkg/net/http/#ResponseWriter
 	Response struct {
-		Writer    http.ResponseWriter
-		Status    int
-		Size      int64
-		Committed bool
-		echo      *Echo
+		echo        *Echo
+		beforeFuncs []func()
+		Writer      http.ResponseWriter
+		Status      int
+		Size        int64
+		Committed   bool
 	}
 )
 
@@ -34,6 +35,11 @@ func (r *Response) Header() http.Header {
 	return r.Writer.Header()
 }
 
+// Before registers a function which is called just before the response is written.
+func (r *Response) Before(fn func()) {
+	r.beforeFuncs = append(r.beforeFuncs, fn)
+}
+
 // WriteHeader sends an HTTP response header with status code. If WriteHeader is
 // not called explicitly, the first call to Write will trigger an implicit
 // WriteHeader(http.StatusOK). Thus explicit calls to WriteHeader are mainly
@@ -43,6 +49,9 @@ func (r *Response) WriteHeader(code int) {
 		r.echo.Logger.Warn("response already committed")
 		return
 	}
+	for _, fn := range r.beforeFuncs {
+		fn()
+	}
 	r.Status = code
 	r.Writer.WriteHeader(code)
 	r.Committed = true

vendor/github.com/labstack/echo/router.go

@@ -394,7 +394,7 @@ func (r *Router) Find(method, path string, c Context) {
 		if cn = cn.findChildByKind(akind); cn == nil {
 			if nn != nil {
 				cn = nn
-				nn = nil // Next
+				nn = cn.parent // Next (Issue #954)
 				search = ns
 				if nk == pkind {
 					goto Param

vendor/github.com/labstack/echo/util_go17.go

@@ -0,0 +1,12 @@
+// +build go1.7, !go1.8
+
+package echo
+
+import (
+	"net/url"
+)
+
+// PathUnescape is wraps `url.QueryUnescape`
+func PathUnescape(s string) (string, error) {
+	return url.QueryUnescape(s)
+}

vendor/github.com/labstack/echo/util_go18.go

@@ -0,0 +1,10 @@
+// +build go1.8
+
+package echo
+
+import "net/url"
+
+// PathUnescape is wraps `url.PathUnescape`
+func PathUnescape(s string) (string, error) {
+	return url.PathUnescape(s)
+}

vendor/github.com/lrstanley/girc/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2016 Liam Stanley <me@liamstanley.io>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

vendor/github.com/lrstanley/girc/builtin.go

@@ -0,0 +1,516 @@
+// Copyright (c) Liam Stanley <me@liamstanley.io>. All rights reserved. Use
+// of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
+
+package girc
+
+import (
+	"strings"
+	"time"
+)
+
+// registerBuiltin sets up built-in handlers, based on client
+// configuration.
+func (c *Client) registerBuiltins() {
+	c.debug.Print("registering built-in handlers")
+	c.Handlers.mu.Lock()
+
+	// Built-in things that should always be supported.
+	c.Handlers.register(true, true, RPL_WELCOME, HandlerFunc(handleConnect))
+	c.Handlers.register(true, false, PING, HandlerFunc(handlePING))
+	c.Handlers.register(true, false, PONG, HandlerFunc(handlePONG))
+
+	if !c.Config.disableTracking {
+		// Joins/parts/anything that may add/remove/rename users.
+		c.Handlers.register(true, false, JOIN, HandlerFunc(handleJOIN))
+		c.Handlers.register(true, false, PART, HandlerFunc(handlePART))
+		c.Handlers.register(true, false, KICK, HandlerFunc(handleKICK))
+		c.Handlers.register(true, false, QUIT, HandlerFunc(handleQUIT))
+		c.Handlers.register(true, false, NICK, HandlerFunc(handleNICK))
+		c.Handlers.register(true, false, RPL_NAMREPLY, HandlerFunc(handleNAMES))
+
+		// Modes.
+		c.Handlers.register(true, false, MODE, HandlerFunc(handleMODE))
+		c.Handlers.register(true, false, RPL_CHANNELMODEIS, HandlerFunc(handleMODE))
+
+		// WHO/WHOX responses.
+		c.Handlers.register(true, false, RPL_WHOREPLY, HandlerFunc(handleWHO))
+		c.Handlers.register(true, false, RPL_WHOSPCRPL, HandlerFunc(handleWHO))
+
+		// Other misc. useful stuff.
+		c.Handlers.register(true, false, TOPIC, HandlerFunc(handleTOPIC))
+		c.Handlers.register(true, false, RPL_TOPIC, HandlerFunc(handleTOPIC))
+		c.Handlers.register(true, false, RPL_MYINFO, HandlerFunc(handleMYINFO))
+		c.Handlers.register(true, false, RPL_ISUPPORT, HandlerFunc(handleISUPPORT))
+		c.Handlers.register(true, false, RPL_MOTDSTART, HandlerFunc(handleMOTD))
+		c.Handlers.register(true, false, RPL_MOTD, HandlerFunc(handleMOTD))
+
+		// Keep users lastactive times up to date.
+		c.Handlers.register(true, false, PRIVMSG, HandlerFunc(updateLastActive))
+		c.Handlers.register(true, false, NOTICE, HandlerFunc(updateLastActive))
+		c.Handlers.register(true, false, TOPIC, HandlerFunc(updateLastActive))
+		c.Handlers.register(true, false, KICK, HandlerFunc(updateLastActive))
+
+		// CAP IRCv3-specific tracking and functionality.
+		c.Handlers.register(true, false, CAP, HandlerFunc(handleCAP))
+		c.Handlers.register(true, false, CAP_CHGHOST, HandlerFunc(handleCHGHOST))
+		c.Handlers.register(true, false, CAP_AWAY, HandlerFunc(handleAWAY))
+		c.Handlers.register(true, false, CAP_ACCOUNT, HandlerFunc(handleACCOUNT))
+		c.Handlers.register(true, false, ALL_EVENTS, HandlerFunc(handleTags))
+
+		// SASL IRCv3 support.
+		c.Handlers.register(true, false, AUTHENTICATE, HandlerFunc(handleSASL))
+		c.Handlers.register(true, false, RPL_SASLSUCCESS, HandlerFunc(handleSASL))
+		c.Handlers.register(true, false, RPL_NICKLOCKED, HandlerFunc(handleSASLError))
+		c.Handlers.register(true, false, ERR_SASLFAIL, HandlerFunc(handleSASLError))
+		c.Handlers.register(true, false, ERR_SASLTOOLONG, HandlerFunc(handleSASLError))
+		c.Handlers.register(true, false, ERR_SASLABORTED, HandlerFunc(handleSASLError))
+		c.Handlers.register(true, false, RPL_SASLMECHS, HandlerFunc(handleSASLError))
+	}
+
+	// Nickname collisions.
+	c.Handlers.register(true, false, ERR_NICKNAMEINUSE, HandlerFunc(nickCollisionHandler))
+	c.Handlers.register(true, false, ERR_NICKCOLLISION, HandlerFunc(nickCollisionHandler))
+	c.Handlers.register(true, false, ERR_UNAVAILRESOURCE, HandlerFunc(nickCollisionHandler))
+
+	c.Handlers.mu.Unlock()
+}
+
+// handleConnect is a helper function which lets the client know that enough
+// time has passed and now they can send commands.
+//
+// Should always run in separate thread due to blocking delay.
+func handleConnect(c *Client, e Event) {
+	// This should be the nick that the server gives us. 99% of the time, it's
+	// the one we supplied during connection, but some networks will rename
+	// users on connect.
+	if len(e.Params) > 0 {
+		c.state.Lock()
+		c.state.nick = e.Params[0]
+		c.state.Unlock()
+
+		c.state.notify(c, UPDATE_GENERAL)
+	}
+
+	time.Sleep(2 * time.Second)
+	c.RunHandlers(&Event{Command: CONNECTED, Trailing: c.Server()})
+}
+
+// nickCollisionHandler helps prevent the client from having conflicting
+// nicknames with another bot, user, etc.
+func nickCollisionHandler(c *Client, e Event) {
+	if c.Config.HandleNickCollide == nil {
+		c.Cmd.Nick(c.GetNick() + "_")
+		return
+	}
+
+	c.Cmd.Nick(c.Config.HandleNickCollide(c.GetNick()))
+}
+
+// handlePING helps respond to ping requests from the server.
+func handlePING(c *Client, e Event) {
+	c.Cmd.Pong(e.Trailing)
+}
+
+func handlePONG(c *Client, e Event) {
+	c.conn.lastPong = time.Now()
+}
+
+// handleJOIN ensures that the state has updated users and channels.
+func handleJOIN(c *Client, e Event) {
+	if e.Source == nil {
+		return
+	}
+
+	var channelName string
+	if len(e.Params) > 0 {
+		channelName = e.Params[0]
+	} else {
+		channelName = e.Trailing
+	}
+
+	c.state.Lock()
+
+	channel := c.state.lookupChannel(channelName)
+	if channel == nil {
+		if ok := c.state.createChannel(channelName); !ok {
+			c.state.Unlock()
+			return
+		}
+
+		channel = c.state.lookupChannel(channelName)
+	}
+
+	user := c.state.lookupUser(e.Source.Name)
+	if user == nil {
+		if ok := c.state.createUser(e.Source.Name); !ok {
+			c.state.Unlock()
+			return
+		}
+		user = c.state.lookupUser(e.Source.Name)
+	}
+
+	defer c.state.notify(c, UPDATE_STATE)
+
+	channel.addUser(user.Nick)
+	user.addChannel(channel.Name)
+
+	// Assume extended-join (ircv3).
+	if len(e.Params) == 2 {
+		if e.Params[1] != "*" {
+			user.Extras.Account = e.Params[1]
+		}
+
+		if len(e.Trailing) > 0 {
+			user.Extras.Name = e.Trailing
+		}
+	}
+	c.state.Unlock()
+
+	if e.Source.Name == c.GetNick() {
+		// If it's us, don't just add our user to the list. Run a WHO which
+		// will tell us who exactly is in the entire channel.
+		c.Send(&Event{Command: WHO, Params: []string{channelName, "%tacuhnr,1"}})
+
+		// Also send a MODE to obtain the list of channel modes.
+		c.Send(&Event{Command: MODE, Params: []string{channelName}})
+
+		// Update our ident and host too, in state -- since there is no
+		// cleaner method to do this.
+		c.state.Lock()
+		c.state.ident = e.Source.Ident
+		c.state.host = e.Source.Host
+		c.state.Unlock()
+		return
+	}
+
+	// Only WHO the user, which is more efficient.
+	c.Send(&Event{Command: WHO, Params: []string{e.Source.Name, "%tacuhnr,1"}})
+}
+
+// handlePART ensures that the state is clean of old user and channel entries.
+func handlePART(c *Client, e Event) {
+	if e.Source == nil {
+		return
+	}
+
+	var channel string
+	if len(e.Params) > 0 {
+		channel = e.Params[0]
+	} else {
+		channel = e.Trailing
+	}
+
+	if channel == "" {
+		return
+	}
+
+	defer c.state.notify(c, UPDATE_STATE)
+
+	if e.Source.Name == c.GetNick() {
+		c.state.Lock()
+		c.state.deleteChannel(channel)
+		c.state.Unlock()
+		return
+	}
+
+	c.state.Lock()
+	c.state.deleteUser(channel, e.Source.Name)
+	c.state.Unlock()
+}
+
+// handleTOPIC handles incoming TOPIC events and keeps channel tracking info
+// updated with the latest channel topic.
+func handleTOPIC(c *Client, e Event) {
+	var name string
+	switch len(e.Params) {
+	case 0:
+		return
+	case 1:
+		name = e.Params[0]
+	default:
+		name = e.Params[len(e.Params)-1]
+	}
+
+	c.state.Lock()
+	channel := c.state.lookupChannel(name)
+	if channel == nil {
+		c.state.Unlock()
+		return
+	}
+
+	channel.Topic = e.Trailing
+	c.state.Unlock()
+	c.state.notify(c, UPDATE_STATE)
+}
+
+// handlWHO updates our internal tracking of users/channels with WHO/WHOX
+// information.
+func handleWHO(c *Client, e Event) {
+	var ident, host, nick, account, realname string
+
+	// Assume WHOX related.
+	if e.Command == RPL_WHOSPCRPL {
+		if len(e.Params) != 7 {
+			// Assume there was some form of error or invalid WHOX response.
+			return
+		}
+
+		if e.Params[1] != "1" {
+			// We should always be sending 1, and we should receive 1. If this
+			// is anything but, then we didn't send the request and we can
+			// ignore it.
+			return
+		}
+
+		ident, host, nick, account = e.Params[3], e.Params[4], e.Params[5], e.Params[6]
+		realname = e.Trailing
+	} else {
+		// Assume RPL_WHOREPLY.
+		ident, host, nick = e.Params[2], e.Params[3], e.Params[5]
+		if len(e.Trailing) > 2 {
+			realname = e.Trailing[2:]
+		}
+	}
+
+	c.state.Lock()
+	user := c.state.lookupUser(nick)
+	if user == nil {
+		c.state.Unlock()
+		return
+	}
+
+	user.Host = host
+	user.Ident = ident
+	user.Extras.Name = realname
+
+	if account != "0" {
+		user.Extras.Account = account
+	}
+
+	c.state.Unlock()
+	c.state.notify(c, UPDATE_STATE)
+}
+
+// handleKICK ensures that users are cleaned up after being kicked from the
+// channel
+func handleKICK(c *Client, e Event) {
+	if len(e.Params) < 2 {
+		// Needs at least channel and user.
+		return
+	}
+
+	defer c.state.notify(c, UPDATE_STATE)
+
+	if e.Params[1] == c.GetNick() {
+		c.state.Lock()
+		c.state.deleteChannel(e.Params[0])
+		c.state.Unlock()
+		return
+	}
+
+	// Assume it's just another user.
+	c.state.Lock()
+	c.state.deleteUser(e.Params[0], e.Params[1])
+	c.state.Unlock()
+}
+
+// handleNICK ensures that users are renamed in state, or the client name is
+// up to date.
+func handleNICK(c *Client, e Event) {
+	if e.Source == nil {
+		return
+	}
+
+	c.state.Lock()
+	// renameUser updates the LastActive time automatically.
+	if len(e.Params) == 1 {
+		c.state.renameUser(e.Source.Name, e.Params[0])
+	} else if len(e.Trailing) > 0 {
+		c.state.renameUser(e.Source.Name, e.Trailing)
+	}
+	c.state.Unlock()
+	c.state.notify(c, UPDATE_STATE)
+}
+
+// handleQUIT handles users that are quitting from the network.
+func handleQUIT(c *Client, e Event) {
+	if e.Source == nil {
+		return
+	}
+
+	if e.Source.Name == c.GetNick() {
+		return
+	}
+
+	c.state.Lock()
+	c.state.deleteUser("", e.Source.Name)
+	c.state.Unlock()
+	c.state.notify(c, UPDATE_STATE)
+}
+
+// handleMYINFO handles incoming MYINFO events -- these are commonly used
+// to tell us what the server name is, what version of software is being used
+// as well as what channel and user modes are being used on the server.
+func handleMYINFO(c *Client, e Event) {
+	// Malformed or odd output. As this can differ strongly between networks,
+	// just skip it.
+	if len(e.Params) < 3 {
+		return
+	}
+
+	c.state.Lock()
+	c.state.serverOptions["SERVER"] = e.Params[1]
+	c.state.serverOptions["VERSION"] = e.Params[2]
+	c.state.Unlock()
+	c.state.notify(c, UPDATE_GENERAL)
+}
+
+// handleISUPPORT handles incoming RPL_ISUPPORT (also known as RPL_PROTOCTL)
+// events. These commonly contain the server capabilities and limitations.
+// For example, things like max channel name length, or nickname length.
+func handleISUPPORT(c *Client, e Event) {
+	// Must be a ISUPPORT-based message. 005 is also used for server bounce
+	// related things, so this handler may be triggered during other
+	// situations.
+
+	// Also known as RPL_PROTOCTL.
+	if !strings.HasSuffix(e.Trailing, "this server") {
+		return
+	}
+
+	// Must have at least one configuration.
+	if len(e.Params) < 2 {
+		return
+	}
+
+	c.state.Lock()
+	// Skip the first parameter, as it's our nickname.
+	for i := 1; i < len(e.Params); i++ {
+		j := strings.IndexByte(e.Params[i], '=')
+
+		if j < 1 || (j+1) == len(e.Params[i]) {
+			c.state.serverOptions[e.Params[i]] = ""
+			continue
+		}
+
+		name := e.Params[i][0:j]
+		val := e.Params[i][j+1:]
+		c.state.serverOptions[name] = val
+	}
+	c.state.Unlock()
+	c.state.notify(c, UPDATE_GENERAL)
+}
+
+// handleMOTD handles incoming MOTD messages and buffers them up for use with
+// Client.ServerMOTD().
+func handleMOTD(c *Client, e Event) {
+	c.state.Lock()
+
+	defer c.state.notify(c, UPDATE_GENERAL)
+
+	// Beginning of the MOTD.
+	if e.Command == RPL_MOTDSTART {
+		c.state.motd = ""
+
+		c.state.Unlock()
+		return
+	}
+
+	// Otherwise, assume we're getting sent the MOTD line-by-line.
+	if len(c.state.motd) != 0 {
+		e.Trailing = "\n" + e.Trailing
+	}
+
+	c.state.motd += e.Trailing
+	c.state.Unlock()
+}
+
+// handleNAMES handles incoming NAMES queries, of which lists all users in
+// a given channel. Optionally also obtains ident/host values, as well as
+// permissions for each user, depending on what capabilities are enabled.
+func handleNAMES(c *Client, e Event) {
+	if len(e.Params) < 1 {
+		return
+	}
+
+	channel := c.state.lookupChannel(e.Params[len(e.Params)-1])
+	if channel == nil {
+		return
+	}
+
+	parts := strings.Split(e.Trailing, " ")
+
+	var host, ident, modes, nick string
+	var ok bool
+
+	c.state.Lock()
+	for i := 0; i < len(parts); i++ {
+		modes, nick, ok = parseUserPrefix(parts[i])
+		if !ok {
+			continue
+		}
+
+		// If userhost-in-names.
+		if strings.Contains(nick, "@") {
+			s := ParseSource(nick)
+			if s == nil {
+				continue
+			}
+
+			host = s.Host
+			nick = s.Name
+			ident = s.Ident
+		}
+
+		if !IsValidNick(nick) {
+			continue
+		}
+
+		c.state.createUser(nick)
+		user := c.state.lookupUser(nick)
+		if user == nil {
+			continue
+		}
+
+		user.addChannel(channel.Name)
+		channel.addUser(nick)
+
+		// Add necessary userhost-in-names data into the user.
+		if host != "" {
+			user.Host = host
+		}
+		if ident != "" {
+			user.Ident = ident
+		}
+
+		// Don't append modes, overwrite them.
+		perms, _ := user.Perms.Lookup(channel.Name)
+		perms.set(modes, false)
+		user.Perms.set(channel.Name, perms)
+	}
+	c.state.Unlock()
+	c.state.notify(c, UPDATE_STATE)
+}
+
+// updateLastActive is a wrapper for any event which the source author
+// should have it's LastActive time updated. This is useful for things like
+// a KICK where we know they are active, as they just kicked another user,
+// even though they may not be talking.
+func updateLastActive(c *Client, e Event) {
+	if e.Source == nil {
+		return
+	}
+
+	c.state.Lock()
+
+	// Update the users last active time, if they exist.
+	user := c.state.lookupUser(e.Source.Name)
+	if user == nil {
+		c.state.Unlock()
+		return
+	}
+
+	user.LastActive = time.Now()
+	c.state.Unlock()
+}

vendor/github.com/lrstanley/girc/cap.go

@@ -0,0 +1,639 @@
+// Copyright (c) Liam Stanley <me@liamstanley.io>. All rights reserved. Use
+// of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
+
+package girc
+
+import (
+	"bytes"
+	"encoding/base64"
+	"fmt"
+	"io"
+	"sort"
+	"strings"
+)
+
+var possibleCap = map[string][]string{
+	"account-notify":    nil,
+	"account-tag":       nil,
+	"away-notify":       nil,
+	"batch":             nil,
+	"cap-notify":        nil,
+	"chghost":           nil,
+	"extended-join":     nil,
+	"invite-notify":     nil,
+	"message-tags":      nil,
+	"multi-prefix":      nil,
+	"userhost-in-names": nil,
+}
+
+func (c *Client) listCAP() {
+	if !c.Config.disableTracking {
+		c.write(&Event{Command: CAP, Params: []string{CAP_LS, "302"}})
+	}
+}
+
+func possibleCapList(c *Client) map[string][]string {
+	out := make(map[string][]string)
+
+	if c.Config.SASL != nil {
+		out["sasl"] = nil
+	}
+
+	for k := range c.Config.SupportedCaps {
+		out[k] = c.Config.SupportedCaps[k]
+	}
+
+	for k := range possibleCap {
+		out[k] = possibleCap[k]
+	}
+
+	return out
+}
+
+func parseCap(raw string) map[string][]string {
+	out := make(map[string][]string)
+	parts := strings.Split(raw, " ")
+
+	var val int
+
+	for i := 0; i < len(parts); i++ {
+		val = strings.IndexByte(parts[i], prefixTagValue) // =
+
+		// No value splitter, or has splitter but no trailing value.
+		if val < 1 || len(parts[i]) < val+1 {
+			// The capability doesn't contain a value.
+			out[parts[i]] = nil
+			continue
+		}
+
+		out[parts[i][:val]] = strings.Split(parts[i][val+1:], ",")
+	}
+
+	return out
+}
+
+// handleCAP attempts to find out what IRCv3 capabilities the server supports.
+// This will lock further registration until we have acknowledged the
+// capabilities.
+func handleCAP(c *Client, e Event) {
+	if len(e.Params) >= 2 && (e.Params[1] == CAP_NEW || e.Params[1] == CAP_DEL) {
+		c.listCAP()
+		return
+	}
+
+	// We can assume there was a failure attempting to enable a capability.
+	if len(e.Params) == 2 && e.Params[1] == CAP_NAK {
+		// Let the server know that we're done.
+		c.write(&Event{Command: CAP, Params: []string{CAP_END}})
+		return
+	}
+
+	possible := possibleCapList(c)
+
+	if len(e.Params) >= 2 && len(e.Trailing) > 1 && e.Params[1] == CAP_LS {
+		c.state.Lock()
+
+		caps := parseCap(e.Trailing)
+
+		for k := range caps {
+			if _, ok := possible[k]; !ok {
+				continue
+			}
+
+			if len(possible[k]) == 0 || len(caps[k]) == 0 {
+				c.state.tmpCap = append(c.state.tmpCap, k)
+				continue
+			}
+
+			var contains bool
+			for i := 0; i < len(caps[k]); i++ {
+				for j := 0; j < len(possible[k]); j++ {
+					if caps[k][i] == possible[k][j] {
+						// Assume we have a matching split value.
+						contains = true
+						goto checkcontains
+					}
+				}
+			}
+
+		checkcontains:
+			if !contains {
+				continue
+			}
+
+			c.state.tmpCap = append(c.state.tmpCap, k)
+		}
+		c.state.Unlock()
+
+		// Indicates if this is a multi-line LS. (2 args means it's the
+		// last LS).
+		if len(e.Params) == 2 {
+			// If we support no caps, just ack the CAP message and END.
+			if len(c.state.tmpCap) == 0 {
+				c.write(&Event{Command: CAP, Params: []string{CAP_END}})
+				return
+			}
+
+			// Let them know which ones we'd like to enable.
+			c.write(&Event{Command: CAP, Params: []string{CAP_REQ}, Trailing: strings.Join(c.state.tmpCap, " "), EmptyTrailing: true})
+
+			// Re-initialize the tmpCap, so if we get multiple 'CAP LS' requests
+			// due to cap-notify, we can re-evaluate what we can support.
+			c.state.Lock()
+			c.state.tmpCap = []string{}
+			c.state.Unlock()
+		}
+	}
+
+	if len(e.Params) == 2 && len(e.Trailing) > 1 && e.Params[1] == CAP_ACK {
+		c.state.Lock()
+		c.state.enabledCap = strings.Split(e.Trailing, " ")
+
+		// Do we need to do sasl auth?
+		wantsSASL := false
+		for i := 0; i < len(c.state.enabledCap); i++ {
+			if c.state.enabledCap[i] == "sasl" {
+				wantsSASL = true
+				break
+			}
+		}
+		c.state.Unlock()
+
+		if wantsSASL {
+			c.write(&Event{Command: AUTHENTICATE, Params: []string{c.Config.SASL.Method()}})
+			// Don't "CAP END", since we want to authenticate.
+			return
+		}
+
+		// Let the server know that we're done.
+		c.write(&Event{Command: CAP, Params: []string{CAP_END}})
+		return
+	}
+}
+
+// SASLMech is an representation of what a SASL mechanism should support.
+// See SASLExternal and SASLPlain for implementations of this.
+type SASLMech interface {
+	// Method returns the uppercase version of the SASL mechanism name.
+	Method() string
+	// Encode returns the response that the SASL mechanism wants to use. If
+	// the returned string is empty (e.g. the mechanism gives up), the handler
+	// will attempt to panic, as expectation is that if SASL authentication
+	// fails, the client will disconnect.
+	Encode(params []string) (output string)
+}
+
+// SASLExternal implements the "EXTERNAL" SASL type.
+type SASLExternal struct {
+	// Identity is an optional field which allows the client to specify
+	// pre-authentication identification. This means that EXTERNAL will
+	// supply this in the initial response. This usually isn't needed (e.g.
+	// CertFP).
+	Identity string `json:"identity"`
+}
+
+// Method identifies what type of SASL this implements.
+func (sasl *SASLExternal) Method() string {
+	return "EXTERNAL"
+}
+
+// Encode for external SALS authentication should really only return a "+",
+// unless the user has specified pre-authentication or identification data.
+// See https://tools.ietf.org/html/rfc4422#appendix-A for more info.
+func (sasl *SASLExternal) Encode(params []string) string {
+	if len(params) != 1 || params[0] != "+" {
+		return ""
+	}
+
+	if sasl.Identity != "" {
+		return sasl.Identity
+	}
+
+	return "+"
+}
+
+// SASLPlain contains the user and password needed for PLAIN SASL authentication.
+type SASLPlain struct {
+	User string `json:"user"` // User is the username for SASL.
+	Pass string `json:"pass"` // Pass is the password for SASL.
+}
+
+// Method identifies what type of SASL this implements.
+func (sasl *SASLPlain) Method() string {
+	return "PLAIN"
+}
+
+// Encode encodes the plain user+password into a SASL PLAIN implementation.
+// See https://tools.ietf.org/rfc/rfc4422.txt for more info.
+func (sasl *SASLPlain) Encode(params []string) string {
+	if len(params) != 1 || params[0] != "+" {
+		return ""
+	}
+
+	in := []byte(sasl.User)
+
+	in = append(in, 0x0)
+	in = append(in, []byte(sasl.User)...)
+	in = append(in, 0x0)
+	in = append(in, []byte(sasl.Pass)...)
+
+	return base64.StdEncoding.EncodeToString(in)
+}
+
+const saslChunkSize = 400
+
+func handleSASL(c *Client, e Event) {
+	if e.Command == RPL_SASLSUCCESS || e.Command == ERR_SASLALREADY {
+		// Let the server know that we're done.
+		c.write(&Event{Command: CAP, Params: []string{CAP_END}})
+		return
+	}
+
+	// Assume they want us to handle sending auth.
+	auth := c.Config.SASL.Encode(e.Params)
+
+	if auth == "" {
+		// Assume the SASL authentication method doesn't want to respond for
+		// some reason. The SASL spec and IRCv3 spec do not define a clear
+		// way to abort a SASL exchange, other than to disconnect, or proceed
+		// with CAP END.
+		c.rx <- &Event{Command: ERROR, Trailing: fmt.Sprintf(
+			"closing connection: invalid %s SASL configuration provided: %s",
+			c.Config.SASL.Method(), e.Trailing,
+		)}
+		return
+	}
+
+	// Send in "saslChunkSize"-length byte chunks. If the last chuck is
+	// exactly "saslChunkSize" bytes, send a "AUTHENTICATE +" 0-byte
+	// acknowledgement response to let the server know that we're done.
+	for {
+		if len(auth) > saslChunkSize {
+			c.write(&Event{Command: AUTHENTICATE, Params: []string{auth[0 : saslChunkSize-1]}, Sensitive: true})
+			auth = auth[saslChunkSize:]
+			continue
+		}
+
+		if len(auth) <= saslChunkSize {
+			c.write(&Event{Command: AUTHENTICATE, Params: []string{auth}, Sensitive: true})
+
+			if len(auth) == 400 {
+				c.write(&Event{Command: AUTHENTICATE, Params: []string{"+"}})
+			}
+			break
+		}
+	}
+	return
+}
+
+func handleSASLError(c *Client, e Event) {
+	if c.Config.SASL == nil {
+		c.write(&Event{Command: CAP, Params: []string{CAP_END}})
+		return
+	}
+
+	// Authentication failed. The SASL spec and IRCv3 spec do not define a
+	// clear way to abort a SASL exchange, other than to disconnect, or
+	// proceed with CAP END.
+	c.rx <- &Event{Command: ERROR, Trailing: "closing connection: " + e.Trailing}
+}
+
+// handleCHGHOST handles incoming IRCv3 hostname change events. CHGHOST is
+// what occurs (when enabled) when a servers services change the hostname of
+// a user. Traditionally, this was simply resolved with a quick QUIT and JOIN,
+// however CHGHOST resolves this in a much cleaner fashion.
+func handleCHGHOST(c *Client, e Event) {
+	if len(e.Params) != 2 {
+		return
+	}
+
+	c.state.Lock()
+	user := c.state.lookupUser(e.Source.Name)
+	if user != nil {
+		user.Ident = e.Params[0]
+		user.Host = e.Params[1]
+	}
+	c.state.Unlock()
+	c.state.notify(c, UPDATE_STATE)
+}
+
+// handleAWAY handles incoming IRCv3 AWAY events, for which are sent both
+// when users are no longer away, or when they are away.
+func handleAWAY(c *Client, e Event) {
+	c.state.Lock()
+	user := c.state.lookupUser(e.Source.Name)
+	if user != nil {
+		user.Extras.Away = e.Trailing
+	}
+	c.state.Unlock()
+	c.state.notify(c, UPDATE_STATE)
+}
+
+// handleACCOUNT handles incoming IRCv3 ACCOUNT events. ACCOUNT is sent when
+// a user logs into an account, logs out of their account, or logs into a
+// different account. The account backend is handled server-side, so this
+// could be NickServ, X (undernet?), etc.
+func handleACCOUNT(c *Client, e Event) {
+	if len(e.Params) != 1 {
+		return
+	}
+
+	account := e.Params[0]
+	if account == "*" {
+		account = ""
+	}
+
+	c.state.Lock()
+	user := c.state.lookupUser(e.Source.Name)
+	if user != nil {
+		user.Extras.Account = account
+	}
+	c.state.Unlock()
+	c.state.notify(c, UPDATE_STATE)
+}
+
+// handleTags handles any messages that have tags that will affect state. (e.g.
+// 'account' tags.)
+func handleTags(c *Client, e Event) {
+	if len(e.Tags) == 0 {
+		return
+	}
+
+	account, ok := e.Tags.Get("account")
+	if !ok {
+		return
+	}
+
+	c.state.Lock()
+	user := c.state.lookupUser(e.Source.Name)
+	if user != nil {
+		user.Extras.Account = account
+	}
+	c.state.Unlock()
+	c.state.notify(c, UPDATE_STATE)
+}
+
+const (
+	prefixTag      byte = '@'
+	prefixTagValue byte = '='
+	prefixUserTag  byte = '+'
+	tagSeparator   byte = ';'
+	maxTagLength   int  = 511 // 510 + @ and " " (space), though space usually not included.
+)
+
+// Tags represents the key-value pairs in IRCv3 message tags. The map contains
+// the encoded message-tag values. If the tag is present, it may still be
+// empty. See Tags.Get() and Tags.Set() for use with getting/setting
+// information within the tags.
+//
+// Note that retrieving and setting tags are not concurrent safe. If this is
+// necessary, you will need to implement it yourself.
+type Tags map[string]string
+
+// ParseTags parses out the key-value map of tags. raw should only be the tag
+// data, not a full message. For example:
+//   @aaa=bbb;ccc;example.com/ddd=eee
+// NOT:
+//   @aaa=bbb;ccc;example.com/ddd=eee :nick!ident@host.com PRIVMSG me :Hello
+func ParseTags(raw string) (t Tags) {
+	t = make(Tags)
+
+	if len(raw) > 0 && raw[0] == prefixTag {
+		raw = raw[1:]
+	}
+
+	parts := strings.Split(raw, string(tagSeparator))
+	var hasValue int
+
+	for i := 0; i < len(parts); i++ {
+		hasValue = strings.IndexByte(parts[i], prefixTagValue)
+
+		// The tag doesn't contain a value or has a splitter with no value.
+		if hasValue < 1 || len(parts[i]) < hasValue+1 {
+			if !validTag(parts[i]) {
+				continue
+			}
+
+			t[parts[i]] = ""
+			continue
+		}
+
+		// Check if tag key or decoded value are invalid.
+		if !validTag(parts[i][:hasValue]) || !validTagValue(tagDecoder.Replace(parts[i][hasValue+1:])) {
+			continue
+		}
+
+		t[parts[i][:hasValue]] = parts[i][hasValue+1:]
+	}
+
+	return t
+}
+
+// Len determines the length of the bytes representation of this tag map. This
+// does not include the trailing space required when creating an event, but
+// does include the tag prefix ("@").
+func (t Tags) Len() (length int) {
+	if t == nil {
+		return 0
+	}
+
+	return len(t.Bytes())
+}
+
+// Count finds how many total tags that there are.
+func (t Tags) Count() int {
+	if t == nil {
+		return 0
+	}
+
+	return len(t)
+}
+
+// Bytes returns a []byte representation of this tag map, including the tag
+// prefix ("@"). Note that this will return the tags sorted, regardless of
+// the order of how they were originally parsed.
+func (t Tags) Bytes() []byte {
+	if t == nil {
+		return []byte{}
+	}
+
+	max := len(t)
+	if max == 0 {
+		return nil
+	}
+
+	buffer := new(bytes.Buffer)
+	buffer.WriteByte(prefixTag)
+
+	var current int
+
+	// Sort the writing of tags so we can at least guarantee that they will
+	// be in order, and testable.
+	var names []string
+	for tagName := range t {
+		names = append(names, tagName)
+	}
+	sort.Strings(names)
+
+	for i := 0; i < len(names); i++ {
+		// Trim at max allowed chars.
+		if (buffer.Len() + len(names[i]) + len(t[names[i]]) + 2) > maxTagLength {
+			return buffer.Bytes()
+		}
+
+		buffer.WriteString(names[i])
+
+		// Write the value as necessary.
+		if len(t[names[i]]) > 0 {
+			buffer.WriteByte(prefixTagValue)
+			buffer.WriteString(t[names[i]])
+		}
+
+		// add the separator ";" between tags.
+		if current < max-1 {
+			buffer.WriteByte(tagSeparator)
+		}
+
+		current++
+	}
+
+	return buffer.Bytes()
+}
+
+// String returns a string representation of this tag map.
+func (t Tags) String() string {
+	if t == nil {
+		return ""
+	}
+
+	return string(t.Bytes())
+}
+
+// writeTo writes the necessary tag bytes to an io.Writer, including a trailing
+// space-separator.
+func (t Tags) writeTo(w io.Writer) (n int, err error) {
+	b := t.Bytes()
+	if len(b) == 0 {
+		return n, err
+	}
+
+	n, err = w.Write(b)
+	if err != nil {
+		return n, err
+	}
+
+	var j int
+	j, err = w.Write([]byte{eventSpace})
+	n += j
+
+	return n, err
+}
+
+// tagDecode are encoded -> decoded pairs for replacement to decode.
+var tagDecode = []string{
+	"\\:", ";",
+	"\\s", " ",
+	"\\\\", "\\",
+	"\\r", "\r",
+	"\\n", "\n",
+}
+var tagDecoder = strings.NewReplacer(tagDecode...)
+
+// tagEncode are decoded -> encoded pairs for replacement to decode.
+var tagEncode = []string{
+	";", "\\:",
+	" ", "\\s",
+	"\\", "\\\\",
+	"\r", "\\r",
+	"\n", "\\n",
+}
+var tagEncoder = strings.NewReplacer(tagEncode...)
+
+// Get returns the unescaped value of given tag key. Note that this is not
+// concurrent safe.
+func (t Tags) Get(key string) (tag string, success bool) {
+	if t == nil {
+		return "", false
+	}
+
+	if _, ok := t[key]; ok {
+		tag = tagDecoder.Replace(t[key])
+		success = true
+	}
+
+	return tag, success
+}
+
+// Set escapes given value and saves it as the value for given key. Note that
+// this is not concurrent safe.
+func (t Tags) Set(key, value string) error {
+	if t == nil {
+		t = make(Tags)
+	}
+
+	if !validTag(key) {
+		return fmt.Errorf("tag key %q is invalid", key)
+	}
+
+	value = tagEncoder.Replace(value)
+
+	if len(value) > 0 && !validTagValue(value) {
+		return fmt.Errorf("tag value %q of key %q is invalid", value, key)
+	}
+
+	// Check to make sure it's not too long here.
+	if (t.Len() + len(key) + len(value) + 2) > maxTagLength {
+		return fmt.Errorf("unable to set tag %q [value %q]: tags too long for message", key, value)
+	}
+
+	t[key] = value
+
+	return nil
+}
+
+// Remove deletes the tag frwom the tag map.
+func (t Tags) Remove(key string) (success bool) {
+	if t == nil {
+		return false
+	}
+
+	if _, success = t[key]; success {
+		delete(t, key)
+	}
+
+	return success
+}
+
+// validTag validates an IRC tag.
+func validTag(name string) bool {
+	if len(name) < 1 {
+		return false
+	}
+
+	// Allow user tags to be passed to validTag.
+	if len(name) >= 2 && name[0] == prefixUserTag {
+		name = name[1:]
+	}
+
+	for i := 0; i < len(name); i++ {
+		// A-Z, a-z, 0-9, -/._
+		if (name[i] < 'A' || name[i] > 'Z') && (name[i] < 'a' || name[i] > 'z') && (name[i] < '-' || name[i] > '9') && name[i] != '_' {
+			return false
+		}
+	}
+
+	return true
+}
+
+// validTagValue valids a decoded IRC tag value. If the value is not decoded
+// with tagDecoder first, it may be seen as invalid.
+func validTagValue(value string) bool {
+	for i := 0; i < len(value); i++ {
+		// Don't allow any invisible chars within the tag, or semicolons.
+		if value[i] < '!' || value[i] > '~' || value[i] == ';' {
+			return false
+		}
+	}
+	return true
+}

vendor/github.com/lrstanley/girc/client.go

@@ -0,0 +1,668 @@
+// Copyright (c) Liam Stanley <me@liamstanley.io>. All rights reserved. Use
+// of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
+
+package girc
+
+import (
+	"context"
+	"crypto/tls"
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"log"
+	"runtime"
+	"sort"
+	"sync"
+	"time"
+)
+
+// Client contains all of the information necessary to run a single IRC
+// client.
+type Client struct {
+	// Config represents the configuration. Please take extra caution in that
+	// entries in this are not edited while the client is connected, to prevent
+	// data races. This is NOT concurrent safe to update.
+	Config Config
+	// rx is a buffer of events waiting to be processed.
+	rx chan *Event
+	// tx is a buffer of events waiting to be sent.
+	tx chan *Event
+	// state represents the throw-away state for the irc session.
+	state *state
+	// initTime represents the creation time of the client.
+	initTime time.Time
+	// Handlers is a handler which manages internal and external handlers.
+	Handlers *Caller
+	// CTCP is a handler which manages internal and external CTCP handlers.
+	CTCP *CTCP
+	// Cmd contains various helper methods to interact with the server.
+	Cmd *Commands
+	// mu is the mux used for connections/disconnections from the server,
+	// so multiple threads aren't trying to connect at the same time, and
+	// vice versa.
+	mu sync.RWMutex
+	// stop is used to communicate with Connect(), letting it know that the
+	// client wishes to cancel/close.
+	stop context.CancelFunc
+	// conn is a net.Conn reference to the IRC server. If this is nil, it is
+	// safe to assume that we're not connected. If this is not nil, this
+	// means we're either connected, connecting, or cleaning up. This should
+	// be guarded with Client.mu.
+	conn *ircConn
+	// debug is used if a writer is supplied for Client.Config.Debugger.
+	debug *log.Logger
+}
+
+// Config contains configuration options for an IRC client
+type Config struct {
+	// Server is a host/ip of the server you want to connect to. This only
+	// has an affect during the dial process
+	Server string
+	// ServerPass is the server password used to authenticate. This only has
+	// an affect during the dial process.
+	ServerPass string
+	// Port is the port that will be used during server connection. This only
+	// has an affect during the dial process.
+	Port int
+	// Nick is an rfc-valid nickname used during connection. This only has an
+	// affect during the dial process.
+	Nick string
+	// User is the username/ident to use on connect. Ignored if an identd
+	// server is used. This only has an affect during the dial process.
+	User string
+	// Name is the "realname" that's used during connection. This only has an
+	// affect during the dial process.
+	Name string
+	// SASL contains the necessary authentication data to authenticate
+	// with SASL. See the documentation for SASLMech for what is currently
+	// supported. Capability tracking must be enabled for this to work, as
+	// this requires IRCv3 CAP handling.
+	SASL SASLMech
+	// Bind is used to bind to a specific host or ip during the dial process
+	// when connecting to the server. This can be a hostname, however it must
+	// resolve to an IPv4/IPv6 address bindable on your system. Otherwise,
+	// you can simply use a IPv4/IPv6 address directly. This only has an
+	// affect during the dial process and will not work with DialerConnect().
+	Bind string
+	// SSL allows dialing via TLS. See TLSConfig to set your own TLS
+	// configuration (e.g. to not force hostname checking). This only has an
+	// affect during the dial process.
+	SSL bool
+	// TLSConfig is an optional user-supplied tls configuration, used during
+	// socket creation to the server. SSL must be enabled for this to be used.
+	// This only has an affect during the dial process.
+	TLSConfig *tls.Config
+	// AllowFlood allows the client to bypass the rate limit of outbound
+	// messages.
+	AllowFlood bool
+	// GlobalFormat enables passing through all events which have trailing
+	// text through the color Fmt() function, so you don't have to wrap
+	// every response in the Fmt() method.
+	//
+	// Note that this only actually applies to PRIVMSG, NOTICE and TOPIC
+	// events, to ensure it doesn't clobber unwanted events.
+	GlobalFormat bool
+	// Debug is an optional, user supplied location to log the raw lines
+	// sent from the server, or other useful debug logs. Defaults to
+	// ioutil.Discard. For quick debugging, this could be set to os.Stdout.
+	Debug io.Writer
+	// Out is used to write out a prettified version of incoming events. For
+	// example, channel JOIN/PART, PRIVMSG/NOTICE, KICk, etc. Useful to get
+	// a brief output of the activity of the client. If you are looking to
+	// log raw messages, look at a handler and girc.ALLEVENTS and the relevant
+	// Event.Bytes() or Event.String() methods.
+	Out io.Writer
+	// RecoverFunc is called when a handler throws a panic. If RecoverFunc is
+	// set, the panic will be considered recovered, otherwise the client will
+	// panic. Set this to DefaultRecoverHandler if you don't want the client
+	// to panic, however you don't want to handle the panic yourself.
+	// DefaultRecoverHandler will log the panic to Debug or os.Stdout if
+	// Debug is unset.
+	RecoverFunc func(c *Client, e *HandlerError)
+	// SupportedCaps are the IRCv3 capabilities you would like the client to
+	// support on top of the ones which the client already supports (see
+	// cap.go for which ones the client enables by default). Only use this
+	// if you have not called DisableTracking(). The keys value gets passed
+	// to the server if supported.
+	SupportedCaps map[string][]string
+	// Version is the application version information that will be used in
+	// response to a CTCP VERSION, if default CTCP replies have not been
+	// overwritten or a VERSION handler was already supplied.
+	Version string
+	// PingDelay is the frequency between when the client sends a keep-alive
+	// PING to the server, and awaits a response (and times out if the server
+	// doesn't respond in time). This should be between 20-600 seconds. See
+	// Client.Lag() if you want to determine the delay between the server
+	// and the client. If this is set to -1, the client will not attempt to
+	// send client -> server PING requests.
+	PingDelay time.Duration
+
+	// disableTracking disables all channel and user-level tracking. Useful
+	// for highly embedded scripts with single purposes. This has an exported
+	// method which enables this and ensures prop cleanup, see
+	// Client.DisableTracking().
+	disableTracking bool
+	// HandleNickCollide when set, allows the client to handle nick collisions
+	// in a custom way. If unset, the client will attempt to append a
+	// underscore to the end of the nickname, in order to bypass using
+	// an invalid nickname. For example, if "test" is already in use, or is
+	// blocked by the network/a service, the client will try and use "test_",
+	// then it will attempt "test__", "test___", and so on.
+	HandleNickCollide func(oldNick string) (newNick string)
+}
+
+// ErrInvalidConfig is returned when the configuration passed to the client
+// is invalid.
+type ErrInvalidConfig struct {
+	Conf Config // Conf is the configuration that was not valid.
+	err  error
+}
+
+func (e ErrInvalidConfig) Error() string { return "invalid configuration: " + e.err.Error() }
+
+// isValid checks some basic settings to ensure the config is valid.
+func (conf *Config) isValid() error {
+	if conf.Server == "" {
+		return &ErrInvalidConfig{Conf: *conf, err: errors.New("empty server")}
+	}
+
+	// Default port to 6667 (the standard IRC port).
+	if conf.Port == 0 {
+		conf.Port = 6667
+	}
+
+	if conf.Port < 21 || conf.Port > 65535 {
+		return &ErrInvalidConfig{Conf: *conf, err: errors.New("port outside valid range (21-65535)")}
+	}
+
+	if !IsValidNick(conf.Nick) {
+		return &ErrInvalidConfig{Conf: *conf, err: errors.New("bad nickname specified")}
+	}
+	if !IsValidUser(conf.User) {
+		return &ErrInvalidConfig{Conf: *conf, err: errors.New("bad user/ident specified")}
+	}
+
+	return nil
+}
+
+// ErrNotConnected is returned if a method is used when the client isn't
+// connected.
+var ErrNotConnected = errors.New("client is not connected to server")
+
+// New creates a new IRC client with the specified server, name and config.
+func New(config Config) *Client {
+	c := &Client{
+		Config:   config,
+		rx:       make(chan *Event, 25),
+		tx:       make(chan *Event, 25),
+		CTCP:     newCTCP(),
+		initTime: time.Now(),
+	}
+
+	c.Cmd = &Commands{c: c}
+
+	if c.Config.PingDelay >= 0 && c.Config.PingDelay < (20*time.Second) {
+		c.Config.PingDelay = 20 * time.Second
+	} else if c.Config.PingDelay > (600 * time.Second) {
+		c.Config.PingDelay = 600 * time.Second
+	}
+
+	if c.Config.Debug == nil {
+		c.debug = log.New(ioutil.Discard, "", 0)
+	} else {
+		c.debug = log.New(c.Config.Debug, "debug:", log.Ltime|log.Lshortfile)
+		c.debug.Print("initializing debugging")
+	}
+
+	// Setup the caller.
+	c.Handlers = newCaller(c.debug)
+
+	// Give ourselves a new state.
+	c.state = &state{}
+	c.state.reset()
+
+	// Register builtin handlers.
+	c.registerBuiltins()
+
+	// Register default CTCP responses.
+	c.CTCP.addDefaultHandlers()
+
+	return c
+}
+
+// String returns a brief description of the current client state.
+func (c *Client) String() string {
+	connected := c.IsConnected()
+
+	return fmt.Sprintf(
+		"<Client init:%q handlers:%d connected:%t>", c.initTime.String(), c.Handlers.Len(), connected,
+	)
+}
+
+// TLSConnectionState returns the TLS connection state from tls.Conn{}, which
+// is useful to return needed TLS fingerprint info, certificates, verify cert
+// expiration dates, etc. Will only return an error if the underlying
+// connection wasn't established using TLS (see ErrConnNotTLS), or if the
+// client isn't connected.
+func (c *Client) TLSConnectionState() (*tls.ConnectionState, error) {
+	c.mu.RLock()
+	defer c.mu.RUnlock()
+	if c.conn == nil {
+		return nil, ErrNotConnected
+	}
+
+	c.conn.mu.RLock()
+	defer c.conn.mu.RUnlock()
+
+	if !c.conn.connected {
+		return nil, ErrNotConnected
+	}
+
+	if tlsConn, ok := c.conn.sock.(*tls.Conn); ok {
+		cs := tlsConn.ConnectionState()
+		return &cs, nil
+	}
+
+	return nil, ErrConnNotTLS
+}
+
+// ErrConnNotTLS is returned when Client.TLSConnectionState() is called, and
+// the connection to the server wasn't made with TLS.
+var ErrConnNotTLS = errors.New("underlying connection is not tls")
+
+// Close closes the network connection to the server, and sends a STOPPED
+// event. This should cause Connect() to return with nil. This should be
+// safe to call multiple times. See Connect()'s documentation on how
+// handlers and goroutines are handled when disconnected from the server.
+func (c *Client) Close() {
+	c.mu.RLock()
+	if c.stop != nil {
+		c.debug.Print("requesting client to stop")
+		c.stop()
+	}
+	c.mu.RUnlock()
+}
+
+// ErrEvent is an error returned when the server (or library) sends an ERROR
+// message response. The string returned contains the trailing text from the
+// message.
+type ErrEvent struct {
+	Event *Event
+}
+
+func (e *ErrEvent) Error() string {
+	if e.Event == nil {
+		return "unknown error occurred"
+	}
+
+	return e.Event.Trailing
+}
+
+func (c *Client) execLoop(ctx context.Context, errs chan error, wg *sync.WaitGroup) {
+	c.debug.Print("starting execLoop")
+	defer c.debug.Print("closing execLoop")
+
+	var event *Event
+
+	for {
+		select {
+		case <-ctx.Done():
+			// We've been told to exit, however we shouldn't bail on the
+			// current events in the queue that should be processed, as one
+			// may want to handle an ERROR, QUIT, etc.
+			c.debug.Printf("received signal to close, flushing %d events and executing", len(c.rx))
+			for {
+				select {
+				case event = <-c.rx:
+					c.RunHandlers(event)
+				default:
+					goto done
+				}
+			}
+
+		done:
+			wg.Done()
+			return
+		case event = <-c.rx:
+			if event != nil && event.Command == ERROR {
+				// Handles incoming ERROR responses. These are only ever sent
+				// by the server (with the exception that this library may use
+				// them as a lower level way of signalling to disconnect due
+				// to some other client-choosen error), and should always be
+				// followed up by the server disconnecting the client. If for
+				// some reason the server doesn't disconnect the client, or
+				// if this library is the source of the error, this should
+				// signal back up to the main connect loop, to disconnect.
+				errs <- &ErrEvent{Event: event}
+
+				// Make sure to not actually exit, so we can let any handlers
+				// actually handle the ERROR event.
+			}
+
+			c.RunHandlers(event)
+		}
+	}
+}
+
+// DisableTracking disables all channel/user-level/CAP tracking, and clears
+// all internal handlers. Useful for highly embedded scripts with single
+// purposes. This cannot be un-done on a client.
+func (c *Client) DisableTracking() {
+	c.debug.Print("disabling tracking")
+	c.Config.disableTracking = true
+	c.Handlers.clearInternal()
+
+	c.state.Lock()
+	c.state.channels = nil
+	c.state.Unlock()
+	c.state.notify(c, UPDATE_STATE)
+
+	c.registerBuiltins()
+}
+
+// Server returns the string representation of host+port pair for net.Conn.
+func (c *Client) Server() string {
+	return fmt.Sprintf("%s:%d", c.Config.Server, c.Config.Port)
+}
+
+// Lifetime returns the amount of time that has passed since the client was
+// created.
+func (c *Client) Lifetime() time.Duration {
+	return time.Since(c.initTime)
+}
+
+// Uptime is the time at which the client successfully connected to the
+// server.
+func (c *Client) Uptime() (up *time.Time, err error) {
+	if !c.IsConnected() {
+		return nil, ErrNotConnected
+	}
+
+	c.mu.RLock()
+	c.conn.mu.RLock()
+	up = c.conn.connTime
+	c.conn.mu.RUnlock()
+	c.mu.RUnlock()
+
+	return up, nil
+}
+
+// ConnSince is the duration that has past since the client successfully
+// connected to the server.
+func (c *Client) ConnSince() (since *time.Duration, err error) {
+	if !c.IsConnected() {
+		return nil, ErrNotConnected
+	}
+
+	c.mu.RLock()
+	c.conn.mu.RLock()
+	timeSince := time.Since(*c.conn.connTime)
+	c.conn.mu.RUnlock()
+	c.mu.RUnlock()
+
+	return &timeSince, nil
+}
+
+// IsConnected returns true if the client is connected to the server.
+func (c *Client) IsConnected() bool {
+	c.mu.RLock()
+	if c.conn == nil {
+		c.mu.RUnlock()
+		return false
+	}
+
+	c.conn.mu.RLock()
+	connected := c.conn.connected
+	c.conn.mu.RUnlock()
+	c.mu.RUnlock()
+
+	return connected
+}
+
+// GetNick returns the current nickname of the active connection. Panics if
+// tracking is disabled.
+func (c *Client) GetNick() string {
+	c.panicIfNotTracking()
+
+	c.state.RLock()
+	defer c.state.RUnlock()
+
+	if c.state.nick == "" {
+		return c.Config.Nick
+	}
+
+	return c.state.nick
+}
+
+// GetIdent returns the current ident of the active connection. Panics if
+// tracking is disabled. May be empty, as this is obtained from when we join
+// a channel, as there is no other more efficient method to return this info.
+func (c *Client) GetIdent() string {
+	c.panicIfNotTracking()
+
+	c.state.RLock()
+	defer c.state.RUnlock()
+
+	if c.state.ident == "" {
+		return c.Config.User
+	}
+
+	return c.state.ident
+}
+
+// GetHost returns the current host of the active connection. Panics if
+// tracking is disabled. May be empty, as this is obtained from when we join
+// a channel, as there is no other more efficient method to return this info.
+func (c *Client) GetHost() string {
+	c.panicIfNotTracking()
+
+	c.state.RLock()
+	defer c.state.RUnlock()
+
+	return c.state.host
+}
+
+// ChannelList returns the active list of channel names that the client is in.
+// Panics if tracking is disabled.
+func (c *Client) ChannelList() []string {
+	c.panicIfNotTracking()
+
+	c.state.RLock()
+	channels := make([]string, len(c.state.channels))
+	var i int
+	for channel := range c.state.channels {
+		channels[i] = c.state.channels[channel].Name
+		i++
+	}
+	c.state.RUnlock()
+	sort.Strings(channels)
+
+	return channels
+}
+
+// Channels returns the active channels that the client is in. Panics if
+// tracking is disabled.
+func (c *Client) Channels() []*Channel {
+	c.panicIfNotTracking()
+
+	c.state.RLock()
+	channels := make([]*Channel, len(c.state.channels))
+	var i int
+	for channel := range c.state.channels {
+		channels[i] = c.state.channels[channel].Copy()
+		i++
+	}
+	c.state.RUnlock()
+
+	return channels
+}
+
+// UserList returns the active list of nicknames that the client is tracking
+// across all networks. Panics if tracking is disabled.
+func (c *Client) UserList() []string {
+	c.panicIfNotTracking()
+
+	c.state.RLock()
+	users := make([]string, len(c.state.users))
+	var i int
+	for user := range c.state.users {
+		users[i] = c.state.users[user].Nick
+		i++
+	}
+	c.state.RUnlock()
+	sort.Strings(users)
+
+	return users
+}
+
+// Users returns the active users that the client is tracking across all
+// networks. Panics if tracking is disabled.
+func (c *Client) Users() []*User {
+	c.panicIfNotTracking()
+
+	c.state.RLock()
+	users := make([]*User, len(c.state.users))
+	var i int
+	for user := range c.state.users {
+		users[i] = c.state.users[user].Copy()
+		i++
+	}
+	c.state.RUnlock()
+
+	return users
+}
+
+// LookupChannel looks up a given channel in state. If the channel doesn't
+// exist, nil is returned. Panics if tracking is disabled.
+func (c *Client) LookupChannel(name string) *Channel {
+	c.panicIfNotTracking()
+	if name == "" {
+		return nil
+	}
+
+	c.state.RLock()
+	defer c.state.RUnlock()
+
+	channel := c.state.lookupChannel(name)
+	if channel == nil {
+		return nil
+	}
+
+	return channel.Copy()
+}
+
+// LookupUser looks up a given user in state. If the user doesn't exist, nil
+// is returned. Panics if tracking is disabled.
+func (c *Client) LookupUser(nick string) *User {
+	c.panicIfNotTracking()
+	if nick == "" {
+		return nil
+	}
+
+	c.state.RLock()
+	defer c.state.RUnlock()
+
+	user := c.state.lookupUser(nick)
+	if user == nil {
+		return nil
+	}
+
+	return user.Copy()
+}
+
+// IsInChannel returns true if the client is in channel. Panics if tracking
+// is disabled.
+func (c *Client) IsInChannel(channel string) bool {
+	c.panicIfNotTracking()
+
+	c.state.RLock()
+	_, inChannel := c.state.channels[ToRFC1459(channel)]
+	c.state.RUnlock()
+
+	return inChannel
+}
+
+// GetServerOption retrieves a server capability setting that was retrieved
+// during client connection. This is also known as ISUPPORT (or RPL_PROTOCTL).
+// Will panic if used when tracking has been disabled. Examples of usage:
+//
+//   nickLen, success := GetServerOption("MAXNICKLEN")
+//
+func (c *Client) GetServerOption(key string) (result string, ok bool) {
+	c.panicIfNotTracking()
+
+	c.state.RLock()
+	result, ok = c.state.serverOptions[key]
+	c.state.RUnlock()
+
+	return result, ok
+}
+
+// NetworkName returns the network identifier. E.g. "EsperNet", "ByteIRC".
+// May be empty if the server does not support RPL_ISUPPORT (or RPL_PROTOCTL).
+// Will panic if used when tracking has been disabled.
+func (c *Client) NetworkName() (name string) {
+	c.panicIfNotTracking()
+
+	name, _ = c.GetServerOption("NETWORK")
+
+	return name
+}
+
+// ServerVersion returns the server software version, if the server has
+// supplied this information during connection. May be empty if the server
+// does not support RPL_MYINFO. Will panic if used when tracking has been
+// disabled.
+func (c *Client) ServerVersion() string {
+	c.panicIfNotTracking()
+
+	version, _ := c.GetServerOption("VERSION")
+
+	return version
+}
+
+// ServerMOTD returns the servers message of the day, if the server has sent
+// it upon connect. Will panic if used when tracking has been disabled.
+func (c *Client) ServerMOTD() string {
+	c.panicIfNotTracking()
+
+	c.state.RLock()
+	motd := c.state.motd
+	c.state.RUnlock()
+
+	return motd
+}
+
+// Latency is the latency between the server and the client. This is measured
+// by determining the difference in time between when we ping the server, and
+// when we receive a pong.
+func (c *Client) Latency() time.Duration {
+	c.mu.RLock()
+	c.conn.mu.RLock()
+	delta := c.conn.lastPong.Sub(c.conn.lastPing)
+	c.conn.mu.RUnlock()
+	c.mu.RUnlock()
+
+	if delta < 0 {
+		return 0
+	}
+
+	return delta
+}
+
+// panicIfNotTracking will throw a panic when it's called, and tracking is
+// disabled. Adds useful info like what function specifically, and where it
+// was called from.
+func (c *Client) panicIfNotTracking() {
+	if !c.Config.disableTracking {
+		return
+	}
+
+	pc, _, _, _ := runtime.Caller(1)
+	fn := runtime.FuncForPC(pc)
+	_, file, line, _ := runtime.Caller(2)
+
+	panic(fmt.Sprintf("%s used when tracking is disabled (caller %s:%d)", fn.Name(), file, line))
+}

vendor/github.com/lrstanley/girc/cmdhandler/cmd.go

@@ -0,0 +1,199 @@
+package cmdhandler
+
+import (
+	"errors"
+	"fmt"
+	"regexp"
+	"strings"
+	"sync"
+
+	"github.com/lrstanley/girc"
+)
+
+// Input is a wrapper for events, based around private messages.
+type Input struct {
+	Origin  *girc.Event
+	Args    []string
+	RawArgs string
+}
+
+// Command is an IRC command, supporting aliases, help documentation and easy
+// wrapping for message inputs.
+type Command struct {
+	// Name of command, e.g. "search" or "ping".
+	Name string
+	// Aliases for the above command, e.g. "s" for search, or "p" for "ping".
+	Aliases []string
+	// Help documentation. Should be in the format "<arg> <arg> [arg] --
+	// something useful here"
+	Help string
+	// MinArgs is the minimum required arguments for the command. Defaults to
+	// 0, which means multiple, or no arguments can be supplied. If set
+	// above 0, this means that the command handler will throw an error asking
+	// the person to check "<prefix>help <command>" for more info.
+	MinArgs int
+	// Fn is the function which is executed when the command is ran from a
+	// private message, or channel.
+	Fn func(*girc.Client, *Input)
+}
+
+func (c *Command) genHelp(prefix string) string {
+	out := "{b}" + prefix + c.Name + "{b}"
+
+	if c.Aliases != nil && len(c.Aliases) > 0 {
+		out += " ({b}" + prefix + strings.Join(c.Aliases, "{b}, {b}"+prefix) + "{b})"
+	}
+
+	out += " :: " + c.Help
+
+	return out
+}
+
+// CmdHandler is an irc command parser and execution format which you could
+// use as an example for building your own version/bot.
+//
+// An example of how you would register this with girc:
+//
+//	ch, err := cmdhandler.New("!")
+//	if err != nil {
+//		panic(err)
+//	}
+//
+//	ch.Add(&cmdhandler.Command{
+//		Name:    "ping",
+//		Help:    "Sends a pong reply back to the original user.",
+//		Fn: func(c *girc.Client, input *cmdhandler.Input) {
+//			c.Commands.ReplyTo(*input.Origin, "pong!")
+//		},
+//	})
+//
+//	client.Handlers.AddHandler(girc.PRIVMSG, ch)
+type CmdHandler struct {
+	prefix string
+	re     *regexp.Regexp
+
+	mu   sync.Mutex
+	cmds map[string]*Command
+}
+
+var cmdMatch = `^%s([a-z0-9-_]{1,20})(?: (.*))?$`
+
+// New returns a new CmdHandler based on the specified command prefix. A good
+// prefix is a single character, and easy to remember/use. E.g. "!", or ".".
+func New(prefix string) (*CmdHandler, error) {
+	re, err := regexp.Compile(fmt.Sprintf(cmdMatch, regexp.QuoteMeta(prefix)))
+	if err != nil {
+		return nil, err
+	}
+
+	return &CmdHandler{prefix: prefix, re: re, cmds: make(map[string]*Command)}, nil
+}
+
+var validName = regexp.MustCompile(`^[a-z0-9-_]{1,20}$`)
+
+// Add registers a new command to the handler. Note that you cannot remove
+// commands once added, unless you add another CmdHandler to the client.
+func (ch *CmdHandler) Add(cmd *Command) error {
+	if cmd == nil {
+		return errors.New("nil command provided to CmdHandler")
+	}
+
+	cmd.Name = strings.ToLower(cmd.Name)
+	if !validName.MatchString(cmd.Name) {
+		return fmt.Errorf("invalid command name: %q (req: %q)", cmd.Name, validName.String())
+	}
+
+	if cmd.Aliases != nil {
+		for i := 0; i < len(cmd.Aliases); i++ {
+			cmd.Aliases[i] = strings.ToLower(cmd.Aliases[i])
+			if !validName.MatchString(cmd.Aliases[i]) {
+				return fmt.Errorf("invalid command name: %q (req: %q)", cmd.Aliases[i], validName.String())
+			}
+		}
+	}
+
+	if cmd.MinArgs < 0 {
+		cmd.MinArgs = 0
+	}
+
+	ch.mu.Lock()
+	defer ch.mu.Unlock()
+
+	if _, ok := ch.cmds[cmd.Name]; ok {
+		return fmt.Errorf("command already registered: %s", cmd.Name)
+	}
+
+	ch.cmds[cmd.Name] = cmd
+
+	// Since we'd be storing pointers, duplicates do not matter.
+	for i := 0; i < len(cmd.Aliases); i++ {
+		if _, ok := ch.cmds[cmd.Aliases[i]]; ok {
+			return fmt.Errorf("alias already registered: %s", cmd.Aliases[i])
+		}
+
+		ch.cmds[cmd.Aliases[i]] = cmd
+	}
+
+	return nil
+}
+
+// Execute satisfies the girc.Handler interface.
+func (ch *CmdHandler) Execute(client *girc.Client, event girc.Event) {
+	if event.Source == nil || event.Command != girc.PRIVMSG {
+		return
+	}
+
+	parsed := ch.re.FindStringSubmatch(event.Trailing)
+	if len(parsed) != 3 {
+		return
+	}
+
+	invCmd := strings.ToLower(parsed[1])
+	args := strings.Split(parsed[2], " ")
+	if len(args) == 1 && args[0] == "" {
+		args = []string{}
+	}
+
+	ch.mu.Lock()
+	defer ch.mu.Unlock()
+
+	if invCmd == "help" {
+		if len(args) == 0 {
+			client.Cmd.ReplyTo(event, girc.Fmt("type '{b}!help {blue}<command>{c}{b}' to optionally get more info about a specific command."))
+			return
+		}
+
+		args[0] = strings.ToLower(args[0])
+
+		if _, ok := ch.cmds[args[0]]; !ok {
+			client.Cmd.ReplyTof(event, girc.Fmt("unknown command {b}%q{b}."), args[0])
+			return
+		}
+
+		if ch.cmds[args[0]].Help == "" {
+			client.Cmd.ReplyTof(event, girc.Fmt("there is no help documentation for {b}%q{b}"), args[0])
+			return
+		}
+
+		client.Cmd.ReplyTo(event, girc.Fmt(ch.cmds[args[0]].genHelp(ch.prefix)))
+		return
+	}
+
+	cmd, ok := ch.cmds[invCmd]
+	if !ok {
+		return
+	}
+
+	if len(args) < cmd.MinArgs {
+		client.Cmd.ReplyTof(event, girc.Fmt("not enough arguments supplied for {b}%q{b}. try '{b}%shelp %s{b}'?"), invCmd, ch.prefix, invCmd)
+		return
+	}
+
+	in := &Input{
+		Origin:  &event,
+		Args:    args,
+		RawArgs: parsed[2],
+	}
+
+	go cmd.Fn(client, in)
+}