Release v0.16.2

* Suppress parent message when child message is received

When a thread is started in Slack and a user makes a comment on the thread, matterbridge sends the original parent message again on each child comment. This change suppresses that.

* Update slack.go

Moved determination of ThreadTimestamp to handleSlackClient so the MMMessage struct doesn't need to be modified

* Ran 'go fmt'

.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
+    - 1.8.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.md

@@ -1,9 +1,14 @@
 # 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)](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) [![Slack](https://img.shields.io/badge/slack-matterbridgechat-green.svg)](https://join.slack.com/matterbridgechat/shared_invite/MjEwODMxNjU1NDMwLTE0OTk2MTU3NTMtMzZkZmRiNDZhOA) [![Mattermost](https://img.shields.io/badge/mattermost-matterbridge-green.svg)](https://framateam.org/signup_user_complete/?id=tfqm33ggop8x3qgu4boeieta6e)
+
+[![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)
 
-Simple bridge between Mattermost, IRC, XMPP, Gitter, Slack, Discord, Telegram, Rocket.Chat, Hipchat(via xmpp) and Matrix with REST API.
+Simple bridge between Mattermost, IRC, XMPP, Gitter, Slack, Discord, Telegram, Rocket.Chat, Hipchat(via xmpp), Matrix and Steam.
+Has a REST API.
 
 # Table of Contents
  * [Features](#features)
@@ -12,6 +17,7 @@ Simple bridge between Mattermost, IRC, XMPP, Gitter, Slack, Discord, Telegram, R
    * [Binaries](#binaries)
    * [Building](#building)
  * [Configuration](#configuration)
+   * [Howto](https://github.com/42wim/matterbridge/wiki/How-to-create-your-config)
    * [Examples](#examples) 
  * [Running](#running)
    * [Docker](#docker)
@@ -20,7 +26,8 @@ Simple bridge between Mattermost, IRC, XMPP, Gitter, Slack, Discord, Telegram, R
  * [Thanks](#thanks)
 
 # Features
-* Relays public channel messages between multiple mattermost, IRC, XMPP, Gitter, Slack, Discord, Telegram, Rocket.Chat, Hipchat (via xmpp) and Matrix. Pick and mix.
+* 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.
 * 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).
@@ -28,7 +35,7 @@ Simple bridge between Mattermost, IRC, XMPP, Gitter, Slack, Discord, Telegram, R
 
 # 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/) 3.5.x - 3.10.x, 4.0.x
 * [IRC](http://www.mirc.com/servers.html)
 * [XMPP](https://jabber.org)
 * [Gitter](https://gitter.im)
@@ -38,14 +45,15 @@ Accounts to one of the supported bridges
 * [Hipchat](https://www.hipchat.com)
 * [Rocket.chat](https://rocket.chat)
 * [Matrix](https://matrix.org)
+* [Steam](https://store.steampowered.com/)
 
 # Installing
 ## Binaries
-Binaries can be found [here] (https://github.com/42wim/matterbridge/releases/)
-* Latest stable release [v0.15.0](https://github.com/42wim/matterbridge/releases/latest)
+* Latest stable release [v0.16.2](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 1.7+ 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
@@ -60,10 +68,13 @@ 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.
+## 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.
 
-## Examples
+## 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)
 ```
 [irc]
@@ -174,6 +185,6 @@ Matterbridge wouldn't exist without these libraries:
 * 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/bridge.go

@@ -88,10 +88,7 @@ func New(cfg *config.Config, bridge *config.Bridge, c chan config.Message) *Brid
 
 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 {

bridge/config/config.go

@@ -77,6 +77,7 @@ type Protocol struct {
 	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
@@ -208,7 +209,7 @@ 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

@@ -71,7 +71,7 @@ func (b *bdiscord) Connect() error {
 		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
@@ -153,33 +153,41 @@ func (b *bdiscord) messageCreate(s *discordgo.Session, m *discordgo.MessageCreat
 	if b.Config.WebhookURL != "" && m.Author.Bot && m.Author.ID == b.webhookID {
 		return
 	}
+
 	if len(m.Attachments) > 0 {
 		for _, attach := range m.Attachments {
 			m.Content = m.Content + "\n" + attach.URL
 		}
 	}
-	if m.Content == "" {
-		return
+
+	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()
 	}
-	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()
 	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
+	}
+
 	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",

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

@@ -5,8 +5,13 @@ import (
 	"fmt"
 	"github.com/42wim/matterbridge/bridge/config"
 	log "github.com/Sirupsen/logrus"
+	"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"
 	"regexp"
 	"sort"
 	"strconv"
@@ -143,9 +148,9 @@ func (b *Birc) Send(msg config.Message) error {
 
 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
+		<-throttle.C
 		b.i.Privmsg(msg.Channel, msg.Username+msg.Text)
 	}
 }
@@ -251,6 +256,28 @@ func (b *Birc) handlePrivMsg(event *irc.Event) {
 	// strip IRC colors
 	re := regexp.MustCompile(`[[:cntrl:]](\d+,|)\d+`)
 	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))
+	}
+	if err != nil {
+		flog.Errorf("charset to utf-8 conversion failed: %s", err)
+		return
+	}
+	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}
 }

bridge/mattermost/mattermost.go

@@ -1,6 +1,7 @@
 package bmattermost
 
 import (
+	"errors"
 	"github.com/42wim/matterbridge/bridge/config"
 	"github.com/42wim/matterbridge/matterclient"
 	"github.com/42wim/matterbridge/matterhook"
@@ -12,9 +13,8 @@ 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 {
@@ -29,7 +29,6 @@ type Bmattermost struct {
 	MMapi
 	Config  *config.Protocol
 	Remote  chan config.Message
-	name    string
 	TeamId  string
 	Account string
 }
@@ -55,33 +54,52 @@ 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.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.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.Login != "" {
+		flog.Info("Connecting using login/password (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()
+	}
+	if b.Config.WebhookBindAddress == "" && b.Config.WebhookURL == "" && b.Config.Login == "" {
+		return errors.New("No connection method found. See that you have WebhookBindAddress, WebhookURL or Login/Password/Server/Team configured.")
 	}
-	go b.handleMatter()
 	return nil
 }
 
@@ -126,11 +144,11 @@ func (b *Bmattermost) Send(msg config.Message) error {
 
 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")
+		flog.Debugf("Choosing login/password based receiving")
 		go b.handleMatterClient(mchan)
 	}
 	for message := range mchan {
@@ -166,7 +184,7 @@ func (b *Bmattermost) handleMatterClient(mchan chan *MMMessage) {
 				m.Text = message.Text + b.Config.EditSuffix
 			}
 			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 +205,20 @@ func (b *Bmattermost) handleMatterHook(mchan chan *MMMessage) {
 		mchan <- m
 	}
 }
+
+func (b *Bmattermost) apiLogin() error {
+	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 err != nil {
+		return err
+	}
+	flog.Info("Connection succeeded")
+	b.TeamId = b.mc.GetTeamId()
+	go b.mc.WsReceiver()
+	go b.mc.StatusLoop()
+	return nil
+}

bridge/rocketchat/rocketchat.go

@@ -16,7 +16,6 @@ type Brocketchat struct {
 	MMhook
 	Config  *config.Protocol
 	Remote  chan config.Message
-	name    string
 	Account string
 }
 

bridge/slack/slack.go

@@ -1,11 +1,13 @@
 package bslack
 
 import (
+	"errors"
 	"fmt"
 	"github.com/42wim/matterbridge/bridge/config"
 	"github.com/42wim/matterbridge/matterhook"
 	log "github.com/Sirupsen/logrus"
 	"github.com/nlopes/slack"
+	"html"
 	"regexp"
 	"strings"
 	"time"
@@ -52,22 +54,52 @@ 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
 }
 
@@ -78,7 +110,7 @@ func (b *Bslack) Disconnect() error {
 
 func (b *Bslack) JoinChannel(channel string) error {
 	// we can only join channels using the API
-	if b.Config.WebhookURL == "" || b.Config.WebhookBindAddress == "" {
+	if b.Config.WebhookURL == "" && b.Config.WebhookBindAddress == "" {
 		if strings.HasPrefix(b.Config.Token, "xoxb") {
 			// TODO check if bot has already joined channel
 			return nil
@@ -119,7 +151,7 @@ func (b *Bslack) Send(msg config.Message) error {
 		return err
 	}
 	np := slack.NewPostMessageParameters()
-	if b.Config.PrefixMessagesWithNick == true {
+	if b.Config.PrefixMessagesWithNick {
 		np.AsUser = true
 	}
 	np.Username = nick
@@ -127,6 +159,7 @@ func (b *Bslack) Send(msg config.Message) error {
 	if msg.Avatar != "" {
 		np.IconURL = msg.Avatar
 	}
+	np.Attachments = append(np.Attachments, slack.Attachment{CallbackID: "matterbridge"})
 	b.sc.PostMessage(schannel.ID, message, np)
 
 	/*
@@ -175,7 +208,7 @@ 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 {
@@ -192,8 +225,10 @@ func (b *Bslack) handleSlack() {
 		texts := strings.Split(message.Text, "\n")
 		for _, text := range texts {
 			text = b.replaceURL(text)
+			text = html.UnescapeString(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}
+			msg := config.Message{Text: text, Username: message.Username, Channel: message.Channel, Account: b.Account, Avatar: b.getAvatar(message.Username), UserID: message.UserID}
+			b.Remote <- msg
 		}
 	}
 }
@@ -206,7 +241,13 @@ func (b *Bslack) handleSlackClient(mchan chan *MMMessage) {
 			// ignore first message
 			if count > 0 {
 				flog.Debugf("Receiving from slackclient %#v", ev)
-				if !b.Config.EditDisable && ev.SubMessage != 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
@@ -216,17 +257,38 @@ func (b *Bslack) handleSlackClient(mchan chan *MMMessage) {
 				if err != nil {
 					continue
 				}
-				user, err := b.rtm.GetUserInfo(ev.User)
-				if err != nil {
-					continue
-				}
 				m := &MMMessage{}
-				m.UserID = user.ID
-				m.Username = user.Name
+				if ev.BotID == "" {
+					user, err := b.rtm.GetUserInfo(ev.User)
+					if err != nil {
+						continue
+					}
+					m.UserID = user.ID
+					m.Username = user.Name
+				}
 				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)
+				if ev.BotID != "" {
+					bot, err := b.rtm.GetBotInfo(ev.BotID)
+					if err != nil {
+						continue
+					}
+					if bot.Name != "" {
+						m.Username = bot.Name
+						m.UserID = bot.ID
+					}
+				}
 				mchan <- m
 			}
 			count++

bridge/steam/steam.go

@@ -101,7 +101,9 @@ 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)
-			msg := config.Message{Username: b.getNick(e.ChatterId), Text: e.Message, Channel: strconv.FormatInt(int64(e.ChatRoomId), 10), Account: b.Account, UserID: strconv.FormatInt(int64(e.ChatterId), 10)}
+			// 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:
 			flog.Debugf("PersonaStateEvent: %#v\n", e)
@@ -134,7 +136,7 @@ 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

@@ -114,18 +114,18 @@ func (b *Btelegram) handleRecv(updates <-chan tgbotapi.Update) {
 		if username == "" {
 			username = "unknown"
 		}
-		if message.Sticker != nil {
+		if message.Sticker != nil && b.Config.UseInsecureURL {
 			text = text + " " + b.getFileDirectURL(message.Sticker.FileID)
 		}
-		if message.Video != nil {
+		if message.Video != nil && b.Config.UseInsecureURL {
 			text = text + " " + b.getFileDirectURL(message.Video.FileID)
 		}
-		if message.Photo != nil {
+		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.Document != nil {
+		if message.Document != nil && b.Config.UseInsecureURL {
 			text = text + " " + message.Document.FileName + " : " + b.getFileDirectURL(message.Document.FileID)
 		}
 		if text != "" {

changelog.md

@@ -1,3 +1,97 @@
+# 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.
+  * 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)
+
+## Bugfix since rc1
+* steam: Fix channel id bug in steam (channels are off by 0x18000000000000)
+* 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.
+* irc: detect charset and try to convert it to utf-8 before sending it to other bridges. #209 #210
+* general: various improvements
+
+
+# v0.16.0-rc1
+## 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
+* steam: New protocol support added (http://store.steampowered.com/)
+* discord: WebhookURL posting support added (thanks @saury07) #204
+  Discord API does not allow to change the name of the user posting, but webhooks does.
+
+## Bugfix
+* general: samechannelgateway now relays messages correct again #207
+* slack: Remove label from URLs (slack). #205
+
 # v0.15.0
 ## New features
 * general: add option IgnoreMessages for all protocols (see mattebridge.toml.sample)

ci/bintray.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+go version |grep go1.8 || 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-$VERSION-win64.exe
+GOOS=linux GOARCH=amd64 go build -ldflags "-s -w -X main.githash=$(git log --pretty=format:'%h' -n 1)" -o ci/binaries/matterbridge-$VERSION-linux64
+GOOS=linux GOARCH=arm go build -ldflags "-s -w -X main.githash=$(git log --pretty=format:'%h' -n 1)" -o ci/binaries/matterbridge-$VERSION-linux-arm
+cd ci
+cat > deploy.json <<EOF
+{
+    "package": {
+        "name": "Matterbridge",
+        "repo": "nightly",
+        "subject": "42wim"
+    },
+    "version": {
+        "name": "$VERSION"
+    },
+    "files":
+        [
+        {"includePattern": "ci/binaries/(.*)", "uploadPattern":"\$1"}
+        ],
+    "publish": true
+}
+EOF
+

gateway/gateway.go

@@ -5,6 +5,7 @@ import (
 	"github.com/42wim/matterbridge/bridge"
 	"github.com/42wim/matterbridge/bridge/config"
 	log "github.com/Sirupsen/logrus"
+	"github.com/peterhellberg/emojilib"
 	//	"github.com/davecgh/go-spew/spew"
 	"regexp"
 	"strings"
@@ -95,30 +96,28 @@ func (gw *Gateway) Start() error {
 }
 
 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)
-					}
+	for msg := range 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()
-					}
+		}
+		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)
-				}
+			continue
+		}
+		if !gw.ignoreMessage(&msg) {
+			msg.Timestamp = time.Now()
+			gw.modifyMessage(&msg)
+			for _, br := range gw.Bridges {
+				gw.handleMessage(msg, br)
 			}
 		}
 	}
@@ -296,6 +295,11 @@ func (gw *Gateway) modifyAvatar(msg *config.Message, dest *bridge.Bridge) {
 	}
 }
 
+func (gw *Gateway) modifyMessage(msg *config.Message) {
+	// replace :emoji: to unicode
+	msg.Text = emojilib.Replace(msg.Text)
+}
+
 func getChannelID(msg config.Message) string {
 	return msg.Channel + msg.Account
 }
@@ -310,8 +314,8 @@ func (gw *Gateway) validGatewayDest(msg *config.Message, channel *config.Channel
 
 	// 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 {
+	for k := range GIDmap {
+		if channel.SameChannel[k] {
 			if msg.Channel == channel.Name {
 				// add the gateway to our message
 				msg.Gateway = k
@@ -322,8 +326,8 @@ func (gw *Gateway) validGatewayDest(msg *config.Message, channel *config.Channel
 		}
 	}
 	// check if we are in the correct gateway
-	for k, _ := range GIDmap {
-		if channel.GID[k] == true {
+	for k := range GIDmap {
+		if channel.GID[k] {
 			// add the gateway to our message
 			msg.Gateway = k
 			return true
@@ -333,8 +337,5 @@ func (gw *Gateway) validGatewayDest(msg *config.Message, channel *config.Channel
 }
 
 func isApi(account string) bool {
-	if strings.HasPrefix(account, "api.") {
-		return true
-	}
-	return false
+	return strings.HasPrefix(account, "api.")
 }

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

@@ -12,7 +12,7 @@ import (
 )
 
 var (
-	version = "0.16.0-dev"
+	version = "0.16.2"
 	githash string
 )
 

matterbridge.toml.sample

@@ -503,6 +503,12 @@ MessageFormat=""
 #OPTIONAL (default false)
 UseFirstName=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.
+#OPTIONAL (default false)
+UseInsecureURL=false
+
 #Disable sending of edits to other bridges
 #OPTIONAL (default false)
 EditDisable=false

matterclient/matterclient.go

@@ -65,6 +65,7 @@ type MMClient struct {
 	WsSequence    int64
 	WsPingChan    chan *model.WebSocketResponse
 	ServerVersion string
+	OnWsConnect   func()
 }
 
 func New(login, pass, team, server string) *MMClient {
@@ -87,7 +88,7 @@ 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
@@ -100,10 +101,8 @@ func (m *MMClient) Login() error {
 		Jitter: true,
 	}
 	uriScheme := "https://"
-	wsScheme := "wss://"
 	if m.NoTLS {
 		uriScheme = "http://"
-		wsScheme = "ws://"
 	}
 	// login to mattermost
 	m.Client = model.NewClient(uriScheme + m.Credentials.Server)
@@ -150,7 +149,7 @@ func (m *MMClient) Login() error {
 				return errors.New("invalid " + model.SESSION_COOKIE_TOKEN)
 			}
 		} else {
-			myinfo, appErr = m.Client.Login(m.Credentials.Login, m.Credentials.Pass)
+			_, appErr = m.Client.Login(m.Credentials.Login, m.Credentials.Pass)
 		}
 		if appErr != nil {
 			d := b.Duration()
@@ -182,6 +181,24 @@ func (m *MMClient) Login() error {
 	// set our team id as default route
 	m.Client.SetTeamId(m.Team.Id)
 
+	m.wsConnect()
+
+	return nil
+}
+
+func (m *MMClient) wsConnect() {
+	b := &backoff.Backoff{
+		Min:    time.Second,
+		Max:    5 * time.Minute,
+		Jitter: true,
+	}
+
+	m.WsConnected = false
+	wsScheme := "wss://"
+	if m.NoTLS {
+		wsScheme = "ws://"
+	}
+
 	// setup websocket connection
 	wsurl := wsScheme + m.Credentials.Server + model.API_URL_SUFFIX_V3 + "/users/websocket"
 	header := http.Header{}
@@ -190,6 +207,7 @@ func (m *MMClient) Login() error {
 	m.log.Debugf("WsClient: making connection: %s", wsurl)
 	for {
 		wsDialer := &websocket.Dialer{Proxy: http.ProxyFromEnvironment, TLSClientConfig: &tls.Config{InsecureSkipVerify: m.SkipTLSVerify}}
+		var err error
 		m.WsClient, _, err = wsDialer.Dial(wsurl, header)
 		if err != nil {
 			d := b.Duration()
@@ -199,15 +217,12 @@ func (m *MMClient) Login() error {
 		}
 		break
 	}
-	b.Reset()
 
 	m.log.Debug("WsClient: connected")
 	m.WsSequence = 1
 	m.WsPingChan = make(chan *model.WebSocketResponse)
 	// only start to parse WS messages when login is completely done
 	m.WsConnected = true
-
-	return nil
 }
 
 func (m *MMClient) Logout() error {
@@ -215,6 +230,10 @@ func (m *MMClient) Logout() error {
 	m.WsQuit = true
 	m.WsClient.Close()
 	m.WsClient.UnderlyingConn().Close()
+	if strings.Contains(m.Credentials.Pass, model.SESSION_COOKIE_TOKEN) {
+		m.log.Debug("Not invalidating session in logout, credential is a token")
+		return nil
+	}
 	_, err := m.Client.Logout()
 	if err != nil {
 		return err
@@ -240,12 +259,12 @@ func (m *MMClient) WsReceiver() {
 		if _, rawMsg, err = m.WsClient.ReadMessage(); err != nil {
 			m.log.Error("error:", err)
 			// reconnect
-			m.Login()
+			m.wsConnect()
 		}
 
 		var event model.WebSocketEvent
 		if err := json.Unmarshal(rawMsg, &event); err == nil && event.IsValid() {
-			m.log.Debugf("WsReceiver: %#v", event)
+			m.log.Debugf("WsReceiver event: %#v", event)
 			msg := &Message{Raw: &event, Team: m.Credentials.Team}
 			m.parseMessage(msg)
 			m.MessageChan <- msg
@@ -254,7 +273,7 @@ func (m *MMClient) WsReceiver() {
 
 		var response model.WebSocketResponse
 		if err := json.Unmarshal(rawMsg, &response); err == nil && response.IsValid() {
-			m.log.Debugf("WsReceiver: %#v", response)
+			m.log.Debugf("WsReceiver response: %#v", response)
 			m.parseResponse(response)
 			continue
 		}
@@ -287,7 +306,8 @@ func (m *MMClient) parseActionPost(rmsg *Message) {
 	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 {
-		m.UpdateUsers()
+		m.log.Infof("User %s is not known, ignoring message %s", data)
+		return
 	}
 	rmsg.Username = m.GetUserName(data.UserId)
 	rmsg.Channel = m.GetChannelName(data.ChannelId)
@@ -309,7 +329,6 @@ func (m *MMClient) parseActionPost(rmsg *Message) {
 	}
 	rmsg.Text = data.Message
 	rmsg.Post = data
-	return
 }
 
 func (m *MMClient) UpdateUsers() error {
@@ -348,9 +367,21 @@ func (m *MMClient) GetChannelName(channelId string) string {
 	m.RLock()
 	defer m.RUnlock()
 	for _, t := range m.OtherTeams {
-		for _, channel := range append(*t.Channels, *t.MoreChannels...) {
-			if channel.Id == channelId {
-				return channel.Name
+		if t == nil {
+			continue
+		}
+		if t.Channels != nil {
+			for _, channel := range *t.Channels {
+				if channel.Id == channelId {
+					return channel.Name
+				}
+			}
+		}
+		if t.MoreChannels != nil {
+			for _, channel := range *t.MoreChannels {
+				if channel.Id == channelId {
+					return channel.Name
+				}
 			}
 		}
 	}
@@ -468,6 +499,25 @@ func (m *MMClient) GetPublicLinks(filenames []string) []string {
 	return output
 }
 
+func (m *MMClient) GetFileLinks(filenames []string) []string {
+	uriScheme := "https://"
+	if m.NoTLS {
+		uriScheme = "http://"
+	}
+
+	var output []string
+	for _, f := range filenames {
+		res, err := m.Client.GetPublicLink(f)
+		if err != 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)
+	}
+	return output
+}
+
 func (m *MMClient) UpdateChannelHeader(channelId string, header string) {
 	data := make(map[string]string)
 	data["channel_id"] = channelId
@@ -484,7 +534,7 @@ func (m *MMClient) UpdateLastViewed(channelId string) {
 	if m.mmVersion() >= 3.08 {
 		view := model.ChannelView{ChannelId: channelId}
 		res, _ := m.Client.ViewChannel(view)
-		if res == false {
+		if !res {
 			m.log.Errorf("ChannelView update for %s failed", channelId)
 		}
 		return
@@ -496,17 +546,15 @@ func (m *MMClient) UpdateLastViewed(channelId string) {
 }
 
 func (m *MMClient) UsernamesInChannel(channelId string) []string {
-	res, err := m.Client.GetMyChannelMembers()
+	res, err := m.Client.GetProfilesInChannel(channelId, 0, 50000, "")
 	if err != nil {
 		m.log.Errorf("UsernamesInChannel(%s) failed: %s", channelId, err)
 		return []string{}
 	}
-	members := res.Data.(*model.ChannelMembers)
+	members := res.Data.(map[string]*model.User)
 	result := []string{}
-	for _, channel := range *members {
-		if channel.ChannelId == channelId {
-			result = append(result, m.GetUser(channel.UserId).Username)
-		}
+	for _, member := range members {
+		result = append(result, member.Nickname)
 	}
 	return result
 }
@@ -598,7 +646,9 @@ func (m *MMClient) GetTeamFromChannel(channelId string) string {
 	var channels []*model.Channel
 	for _, t := range m.OtherTeams {
 		channels = append(channels, *t.Channels...)
-		channels = append(channels, *t.MoreChannels...)
+		if t.MoreChannels != nil {
+			channels = append(channels, *t.MoreChannels...)
+		}
 		for _, c := range channels {
 			if c.Id == channelId {
 				return t.Id
@@ -630,8 +680,17 @@ func (m *MMClient) GetUsers() map[string]*model.User {
 }
 
 func (m *MMClient) GetUser(userId string) *model.User {
-	m.RLock()
-	defer m.RUnlock()
+	m.Lock()
+	defer m.Unlock()
+	_, ok := m.Users[userId]
+	if !ok {
+		res, err := m.Client.GetProfilesByIds([]string{userId})
+		if err != nil {
+			return nil
+		}
+		u := res.Data.(map[string]*model.User)[userId]
+		m.Users[userId] = u
+	}
 	return m.Users[userId]
 }
 
@@ -644,7 +703,7 @@ func (m *MMClient) GetUserName(userId string) string {
 }
 
 func (m *MMClient) GetStatus(userId string) string {
-	res, err := m.Client.GetStatuses()
+	res, err := m.Client.GetStatusesByIds([]string{userId})
 	if err != nil {
 		return ""
 	}
@@ -684,6 +743,12 @@ func (m *MMClient) GetTeamId() string {
 }
 
 func (m *MMClient) StatusLoop() {
+	retries := 0
+	backoff := time.Second * 60
+	if m.OnWsConnect != nil {
+		m.OnWsConnect()
+	}
+	m.log.Debug("StatusLoop:", m.OnWsConnect)
 	for {
 		if m.WsQuit {
 			return
@@ -694,14 +759,23 @@ func (m *MMClient) StatusLoop() {
 			select {
 			case <-m.WsPingChan:
 				m.log.Debug("WS PONG received")
+				backoff = time.Second * 60
 			case <-time.After(time.Second * 5):
-				m.Logout()
-				m.WsQuit = false
-				m.Login()
-				go m.WsReceiver()
+				if retries > 3 {
+					m.Logout()
+					m.WsQuit = false
+					m.Login()
+					if m.OnWsConnect != nil {
+						m.OnWsConnect()
+					}
+					go m.WsReceiver()
+				} else {
+					retries++
+					backoff = time.Second * 5
+				}
 			}
 		}
-		time.Sleep(time.Second * 60)
+		time.Sleep(backoff)
 	}
 }
 
@@ -777,7 +851,8 @@ func supportedVersion(version string) bool {
 		strings.HasPrefix(version, "3.7.0") ||
 		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, "4.0") {
 		return true
 	}
 	return false

matterhook/matterhook.go

@@ -134,12 +134,11 @@ 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.

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 = "0.16.0"
+
+// 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 +57,8 @@ func New(args ...interface{}) (s *Session, err error) {
 		ShardID:                0,
 		ShardCount:             1,
 		MaxRestRetries:         3,
+		Client:                 &http.Client{Timeout: (20 * time.Second)},
+		sequence:               new(int64),
 	}
 
 	// If no arguments are passed return the empty Session interface.
@@ -60,7 +76,7 @@ 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 +107,7 @@ 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 +115,7 @@ 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 +129,11 @@ 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

@@ -26,6 +26,13 @@ var (
 	EndpointGateway  = EndpointAPI + "gateway"
 	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"
 	EndpointLogout         = EndpointAuth + "logout"
@@ -48,7 +55,7 @@ var (
 	EndpointIntegrations = EndpointAPI + "integrations"
 
 	EndpointUser              = func(uID string) string { return EndpointUsers + uID }
-	EndpointUserAvatar        = func(uID, aID string) string { return EndpointUsers + uID + "/avatars/" + aID + ".jpg" }
+	EndpointUserAvatar        = func(uID, aID string) string { return EndpointCDNAvatars + uID + "/" + aID + ".png" }
 	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 }
@@ -56,6 +63,7 @@ var (
 	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 +81,8 @@ 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 }
@@ -89,6 +97,8 @@ 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 }

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
@@ -210,14 +211,15 @@ 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 +227,4 @@ 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

@@ -11,6 +11,7 @@ package discordgo
 
 import (
 	"fmt"
+	"io"
 	"regexp"
 )
 
@@ -31,6 +32,53 @@ type Message struct {
 	Reactions       []*MessageReactions  `json:"reactions"`
 }
 
+// File stores info about files you e.g. send in messages.
+type File struct {
+	Name   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"`
+	File    *File         `json:"file"`
+}
+
+// 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.
 type MessageAttachment struct {
 	ID       string `json:"id"`

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

@@ -4,13 +4,14 @@ import (
 	"net/http"
 	"strconv"
 	"sync"
+	"sync/atomic"
 	"time"
 )
 
 // RateLimiter holds all ratelimit buckets
 type RateLimiter struct {
 	sync.Mutex
-	global          *Bucket
+	global          *int64
 	buckets         map[string]*Bucket
 	globalRateLimit time.Duration
 }
@@ -20,7 +21,7 @@ func NewRatelimiter() *RateLimiter {
 
 	return &RateLimiter{
 		buckets: make(map[string]*Bucket),
-		global:  &Bucket{Key: "global"},
+		global:  new(int64),
 	}
 }
 
@@ -58,8 +59,10 @@ 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
@@ -72,7 +75,7 @@ type Bucket struct {
 	remaining int
 	limit     int
 	reset     time.Time
-	global    *Bucket
+	global    *int64
 }
 
 // Release unlocks the bucket and reads the headers to update the buckets ratelimit info
@@ -89,41 +92,25 @@ 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

@@ -29,8 +29,15 @@ import (
 	"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 +94,7 @@ 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 +180,12 @@ 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 +200,7 @@ 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 +209,7 @@ func (s *Session) Login(email, password string) (err error) {
 	}
 
 	s.Token = temp.Token
+	s.MFA = temp.MFA
 	return
 }
 
@@ -264,15 +277,21 @@ 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
 	}
@@ -292,7 +311,7 @@ func (s *Session) UserUpdate(email, password, username, avatar, newPassword stri
 	data := struct {
 		Email       string `json:"email"`
 		Password    string `json:"password"`
-		Username    string `json:"username"`
+		Username    string `json:"username,omitempty"`
 		Avatar      string `json:"avatar,omitempty"`
 		NewPassword string `json:"new_password,omitempty"`
 	}{email, password, username, avatar, newPassword}
@@ -322,7 +341,7 @@ 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 +389,30 @@ 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 +442,13 @@ 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 +478,19 @@ 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 +507,36 @@ 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 +545,11 @@ func (s *Session) UserChannelPermissions(userID, channelID string) (apermissions
 		}
 	}
 
-	if apermissions&PermissionAdministrator > 0 {
+	if apermissions&PermissionAdministrator == PermissionAdministrator {
 		apermissions |= PermissionAllChannel
 	}
 
-	return
+	return apermissions
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -527,7 +602,7 @@ 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 +626,7 @@ 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 +676,28 @@ 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, ""))
@@ -722,12 +808,17 @@ 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 +829,7 @@ 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 +840,7 @@ 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 +995,7 @@ 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 +1025,7 @@ 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 +1127,7 @@ 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 +1149,7 @@ 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 +1247,8 @@ 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 +1262,9 @@ 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 +1307,76 @@ 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}
+// 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"
+	}
 
-	// Send the message to the given channel
-	response, err := s.RequestWithBucketID("POST", EndpointChannelMessages(channelID), data, EndpointChannelMessages(channelID))
+	endpoint := EndpointChannelMessages(channelID)
+
+	var response []byte
+	if data.File != nil {
+		body := &bytes.Buffer{}
+		bodywriter := multipart.NewWriter(body)
+
+		// What's a better way of doing this? Reflect? Generator? I'm open to suggestions
+
+		if data.Content != "" {
+			if err = bodywriter.WriteField("content", data.Content); err != nil {
+				return
+			}
+		}
+
+		if data.Embed != nil {
+			var embed []byte
+			embed, err = json.Marshal(data.Embed)
+			if err != nil {
+				return
+			}
+			err = bodywriter.WriteField("embed", string(embed))
+			if err != nil {
+				return
+			}
+		}
+
+		if data.Tts {
+			if err = bodywriter.WriteField("tts", "true"); err != nil {
+				return
+			}
+		}
+
+		var writer io.Writer
+		writer, err = bodywriter.CreateFormFile("file", data.File.Name)
+		if err != nil {
+			return
+		}
+
+		_, err = io.Copy(writer, data.File.Reader)
+		if 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 +1385,42 @@ 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 +1429,12 @@ 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 +1509,18 @@ 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 +1657,7 @@ 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)
@@ -1808,6 +1902,20 @@ 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
@@ -33,6 +38,7 @@ type State struct {
 	TrackMembers    bool
 	TrackRoles      bool
 	TrackVoice      bool
+	TrackPresences  bool
 
 	guildMap   map[string]*Guild
 	channelMap map[string]*Channel
@@ -45,13 +51,14 @@ 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),
 	}
 }
 
@@ -143,7 +150,108 @@ 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.
@@ -195,7 +303,7 @@ func (s *State) MemberRemove(member *Member) error {
 		}
 	}
 
-	return errors.New("Member not found.")
+	return ErrStateNotFound
 }
 
 // Member gets a member by ID from a guild.
@@ -218,7 +326,7 @@ func (s *State) Member(guildID, userID string) (*Member, error) {
 		}
 	}
 
-	return nil, errors.New("Member not found.")
+	return nil, ErrStateNotFound
 }
 
 // RoleAdd adds a role to the current world state, or
@@ -268,7 +376,7 @@ 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 +399,10 @@ 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.
@@ -324,7 +432,7 @@ func (s *State) ChannelAdd(channel *Channel) error {
 	} 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)
@@ -403,7 +511,7 @@ 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 +534,7 @@ 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 +631,12 @@ 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 +645,13 @@ 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 +705,7 @@ 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 +721,9 @@ 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
@@ -710,10 +822,55 @@ 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 +904,46 @@ 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.
@@ -73,6 +75,9 @@ type Session struct {
 	// StateEnabled is true.
 	State *State
 
+	// The http client used for REST requests
+	Client *http.Client
+
 	// Event handlers
 	handlersMu   sync.RWMutex
 	handlers     map[string][]*eventHandlerInstance
@@ -88,7 +93,7 @@ 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 +105,6 @@ 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"`
@@ -235,9 +234,15 @@ 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 +257,21 @@ 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"`
@@ -284,7 +304,7 @@ type Game struct {
 // 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 +312,8 @@ 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 +344,6 @@ 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"`
@@ -542,6 +549,8 @@ const (
 	PermissionAdministrator
 	PermissionManageChannels
 	PermissionManageServer
+	PermissionAddReactions
+	PermissionViewAuditLogs
 
 	PermissionAllText = PermissionReadMessages |
 		PermissionSendMessages |
@@ -561,9 +570,12 @@ const (
 		PermissionAllVoice |
 		PermissionCreateInstantInvite |
 		PermissionManageRoles |
-		PermissionManageChannels
+		PermissionManageChannels |
+		PermissionAddReactions |
+		PermissionViewAuditLogs
 	PermissionAll = PermissionAllChannel |
 		PermissionKickMembers |
 		PermissionBanMembers |
-		PermissionManageServer
+		PermissionManageServer |
+		PermissionAdministrator
 )

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 +1,26 @@
+package discordgo
+
+import "fmt"
+
+// 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)
+}

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
 
@@ -778,6 +801,7 @@ func (v *VoiceConnection) opusReceiver(udpConn *net.UDPConn, close <-chan struct
 		}
 
 		// 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])
@@ -837,6 +861,8 @@ 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 +874,5 @@ 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

@@ -19,17 +19,30 @@ import (
 	"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 +70,7 @@ func (s *Session) Open() (err error) {
 	}
 
 	if s.wsConn != nil {
-		err = errors.New("Web socket already opened.")
+		err = ErrWSAlreadyOpen
 		return
 	}
 
@@ -74,7 +87,7 @@ 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 = fmt.Sprintf("%s?v=5&encoding=json", s.gateway)
 	}
 
 	header := http.Header{}
@@ -89,13 +102,14 @@ 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)
@@ -176,8 +190,13 @@ 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"`
 }
 
 // heartbeat sends regular heartbeats to Discord so it knows the client
@@ -193,12 +212,13 @@ func (s *Session) heartbeat(wsConn *websocket.Conn, listening <-chan interface{}
 
 	var err error
 	ticker := time.NewTicker(i * time.Millisecond)
+	defer ticker.Stop()
 
 	for {
-
-		s.log(LogInformational, "sending gateway websocket heartbeat seq %d", s.sequence)
+		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)
@@ -242,7 +262,7 @@ 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
 	}
 
 	var usd updateStatusData
@@ -299,7 +319,7 @@ 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 +385,7 @@ 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")
@@ -396,6 +416,16 @@ 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
+	}
+
 	// Do not try to Dispatch a non-Dispatch Message
 	if e.Operation != 0 {
 		// But we probably should be doing something with them.
@@ -405,7 +435,7 @@ 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 +488,24 @@ 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 +536,9 @@ 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 +549,11 @@ 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 +565,9 @@ 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 +579,11 @@ 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 +633,7 @@ 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 +673,8 @@ 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)
@@ -675,7 +722,9 @@ 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/nlopes/slack/admin.go

@@ -1,6 +1,7 @@
 package slack
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"net/url"
@@ -11,9 +12,9 @@ type adminResponse struct {
 	Error string `json:"error"`
 }
 
-func adminRequest(method string, teamName string, values url.Values, debug bool) (*adminResponse, error) {
+func adminRequest(ctx context.Context, method string, teamName string, values url.Values, debug bool) (*adminResponse, error) {
 	adminResponse := &adminResponse{}
-	err := parseAdminResponse(method, teamName, values, adminResponse, debug)
+	err := parseAdminResponse(ctx, method, teamName, values, adminResponse, debug)
 	if err != nil {
 		return nil, err
 	}
@@ -27,6 +28,11 @@ func adminRequest(method string, teamName string, values url.Values, debug bool)
 
 // DisableUser disabled a user account, given a user ID
 func (api *Client) DisableUser(teamName string, uid string) error {
+	return api.DisableUserContext(context.Background(), teamName, uid)
+}
+
+// DisableUserContext disabled a user account, given a user ID with a custom context
+func (api *Client) DisableUserContext(ctx context.Context, teamName string, uid string) error {
 	values := url.Values{
 		"user":       {uid},
 		"token":      {api.config.token},
@@ -34,7 +40,7 @@ func (api *Client) DisableUser(teamName string, uid string) error {
 		"_attempts":  {"1"},
 	}
 
-	_, err := adminRequest("setInactive", teamName, values, api.debug)
+	_, err := adminRequest(ctx, "setInactive", teamName, values, api.debug)
 	if err != nil {
 		return fmt.Errorf("Failed to disable user with id '%s': %s", uid, err)
 	}
@@ -43,13 +49,12 @@ func (api *Client) DisableUser(teamName string, uid string) error {
 }
 
 // InviteGuest invites a user to Slack as a single-channel guest
-func (api *Client) InviteGuest(
-	teamName string,
-	channel string,
-	firstName string,
-	lastName string,
-	emailAddress string,
-) error {
+func (api *Client) InviteGuest(teamName, channel, firstName, lastName, emailAddress string) error {
+	return api.InviteGuestContext(context.Background(), teamName, channel, firstName, lastName, emailAddress)
+}
+
+// InviteGuestContext invites a user to Slack as a single-channel guest with a custom context
+func (api *Client) InviteGuestContext(ctx context.Context, teamName, channel, firstName, lastName, emailAddress string) error {
 	values := url.Values{
 		"email":            {emailAddress},
 		"channels":         {channel},
@@ -61,7 +66,7 @@ func (api *Client) InviteGuest(
 		"_attempts":        {"1"},
 	}
 
-	_, err := adminRequest("invite", teamName, values, api.debug)
+	_, err := adminRequest(ctx, "invite", teamName, values, api.debug)
 	if err != nil {
 		return fmt.Errorf("Failed to invite single-channel guest: %s", err)
 	}
@@ -70,13 +75,12 @@ func (api *Client) InviteGuest(
 }
 
 // InviteRestricted invites a user to Slack as a restricted account
-func (api *Client) InviteRestricted(
-	teamName string,
-	channel string,
-	firstName string,
-	lastName string,
-	emailAddress string,
-) error {
+func (api *Client) InviteRestricted(teamName, channel, firstName, lastName, emailAddress string) error {
+	return api.InviteRestrictedContext(context.Background(), teamName, channel, firstName, lastName, emailAddress)
+}
+
+// InviteRestrictedContext invites a user to Slack as a restricted account with a custom context
+func (api *Client) InviteRestrictedContext(ctx context.Context, teamName, channel, firstName, lastName, emailAddress string) error {
 	values := url.Values{
 		"email":      {emailAddress},
 		"channels":   {channel},
@@ -88,7 +92,7 @@ func (api *Client) InviteRestricted(
 		"_attempts":  {"1"},
 	}
 
-	_, err := adminRequest("invite", teamName, values, api.debug)
+	_, err := adminRequest(ctx, "invite", teamName, values, api.debug)
 	if err != nil {
 		return fmt.Errorf("Failed to restricted account: %s", err)
 	}
@@ -97,12 +101,12 @@ func (api *Client) InviteRestricted(
 }
 
 // InviteToTeam invites a user to a Slack team
-func (api *Client) InviteToTeam(
-	teamName string,
-	firstName string,
-	lastName string,
-	emailAddress string,
-) error {
+func (api *Client) InviteToTeam(teamName, firstName, lastName, emailAddress string) error {
+	return api.InviteToTeamContext(context.Background(), teamName, firstName, lastName, emailAddress)
+}
+
+// InviteToTeamContext invites a user to a Slack team with a custom context
+func (api *Client) InviteToTeamContext(ctx context.Context, teamName, firstName, lastName, emailAddress string) error {
 	values := url.Values{
 		"email":      {emailAddress},
 		"first_name": {firstName},
@@ -112,7 +116,7 @@ func (api *Client) InviteToTeam(
 		"_attempts":  {"1"},
 	}
 
-	_, err := adminRequest("invite", teamName, values, api.debug)
+	_, err := adminRequest(ctx, "invite", teamName, values, api.debug)
 	if err != nil {
 		return fmt.Errorf("Failed to invite to team: %s", err)
 	}
@@ -121,7 +125,12 @@ func (api *Client) InviteToTeam(
 }
 
 // SetRegular enables the specified user
-func (api *Client) SetRegular(teamName string, user string) error {
+func (api *Client) SetRegular(teamName, user string) error {
+	return api.SetRegularContext(context.Background(), teamName, user)
+}
+
+// SetRegularContext enables the specified user with a custom context
+func (api *Client) SetRegularContext(ctx context.Context, teamName, user string) error {
 	values := url.Values{
 		"user":       {user},
 		"token":      {api.config.token},
@@ -129,7 +138,7 @@ func (api *Client) SetRegular(teamName string, user string) error {
 		"_attempts":  {"1"},
 	}
 
-	_, err := adminRequest("setRegular", teamName, values, api.debug)
+	_, err := adminRequest(ctx, "setRegular", teamName, values, api.debug)
 	if err != nil {
 		return fmt.Errorf("Failed to change the user (%s) to a regular user: %s", user, err)
 	}
@@ -138,7 +147,12 @@ func (api *Client) SetRegular(teamName string, user string) error {
 }
 
 // SendSSOBindingEmail sends an SSO binding email to the specified user
-func (api *Client) SendSSOBindingEmail(teamName string, user string) error {
+func (api *Client) SendSSOBindingEmail(teamName, user string) error {
+	return api.SendSSOBindingEmailContext(context.Background(), teamName, user)
+}
+
+// SendSSOBindingEmailContext sends an SSO binding email to the specified user with a custom context
+func (api *Client) SendSSOBindingEmailContext(ctx context.Context, teamName, user string) error {
 	values := url.Values{
 		"user":       {user},
 		"token":      {api.config.token},
@@ -146,7 +160,7 @@ func (api *Client) SendSSOBindingEmail(teamName string, user string) error {
 		"_attempts":  {"1"},
 	}
 
-	_, err := adminRequest("sendSSOBind", teamName, values, api.debug)
+	_, err := adminRequest(ctx, "sendSSOBind", teamName, values, api.debug)
 	if err != nil {
 		return fmt.Errorf("Failed to send SSO binding email for user (%s): %s", user, err)
 	}
@@ -156,6 +170,11 @@ func (api *Client) SendSSOBindingEmail(teamName string, user string) error {
 
 // SetUltraRestricted converts a user into a single-channel guest
 func (api *Client) SetUltraRestricted(teamName, uid, channel string) error {
+	return api.SetUltraRestrictedContext(context.Background(), teamName, uid, channel)
+}
+
+// SetUltraRestrictedContext converts a user into a single-channel guest with a custom context
+func (api *Client) SetUltraRestrictedContext(ctx context.Context, teamName, uid, channel string) error {
 	values := url.Values{
 		"user":       {uid},
 		"channel":    {channel},
@@ -164,7 +183,7 @@ func (api *Client) SetUltraRestricted(teamName, uid, channel string) error {
 		"_attempts":  {"1"},
 	}
 
-	_, err := adminRequest("setUltraRestricted", teamName, values, api.debug)
+	_, err := adminRequest(ctx, "setUltraRestricted", teamName, values, api.debug)
 	if err != nil {
 		return fmt.Errorf("Failed to ultra-restrict account: %s", err)
 	}
@@ -174,6 +193,11 @@ func (api *Client) SetUltraRestricted(teamName, uid, channel string) error {
 
 // SetRestricted converts a user into a restricted account
 func (api *Client) SetRestricted(teamName, uid string) error {
+	return api.SetRestrictedContext(context.Background(), teamName, uid)
+}
+
+// SetRestrictedContext converts a user into a restricted account with a custom context
+func (api *Client) SetRestrictedContext(ctx context.Context, teamName, uid string) error {
 	values := url.Values{
 		"user":       {uid},
 		"token":      {api.config.token},
@@ -181,7 +205,7 @@ func (api *Client) SetRestricted(teamName, uid string) error {
 		"_attempts":  {"1"},
 	}
 
-	_, err := adminRequest("setRestricted", teamName, values, api.debug)
+	_, err := adminRequest(ctx, "setRestricted", teamName, values, api.debug)
 	if err != nil {
 		return fmt.Errorf("Failed to restrict account: %s", err)
 	}

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

@@ -10,16 +10,34 @@ type AttachmentField struct {
 	Short bool   `json:"short"`
 }
 
-// AttachmentAction is a button to be included in the attachment. Required when
-// using message buttons and otherwise not useful. A maximum of 5 actions may be
+// AttachmentAction is a button or menu to be included in the attachment. Required when
+// using message buttons or menus and otherwise not useful. A maximum of 5 actions may be
 // provided per attachment.
 type AttachmentAction struct {
-	Name    string             `json:"name"`              // Required.
-	Text    string             `json:"text"`              // Required.
-	Style   string             `json:"style,omitempty"`   // Optional. Allowed values: "default", "primary", "danger"
-	Type    string             `json:"type"`              // Required. Must be set to "button"
-	Value   string             `json:"value,omitempty"`   // Optional.
-	Confirm *ConfirmationField `json:"confirm,omitempty"` // Optional.
+	Name            string                        `json:"name"`                       // Required.
+	Text            string                        `json:"text"`                       // Required.
+	Style           string                        `json:"style,omitempty"`            // Optional. Allowed values: "default", "primary", "danger".
+	Type            string                        `json:"type"`                       // Required. Must be set to "button" or "select".
+	Value           string                        `json:"value,omitempty"`            // Optional.
+	DataSource      string                        `json:"data_source,omitempty"`      // Optional.
+	MinQueryLength  int                           `json:"min_query_length,omitempty"` // Optional. Default value is 1.
+	Options         []AttachmentActionOption      `json:"options,omitempty"`          // Optional. Maximum of 100 options can be provided in each menu.
+	SelectedOptions []AttachmentActionOption      `json:"selected_options,omitempty"` // Optional. The first element of this array will be set as the pre-selected option for this menu.
+	OptionGroups    []AttachmentActionOptionGroup `json:"option_groups,omitempty"`    // Optional.
+	Confirm         *ConfirmationField            `json:"confirm,omitempty"`          // Optional.
+}
+
+// AttachmentActionOption the individual option to appear in action menu.
+type AttachmentActionOption struct {
+	Text        string `json:"text"`                  // Required.
+	Value       string `json:"value"`                 // Required.
+	Description string `json:"description,omitempty"` // Optional. Up to 30 characters.
+}
+
+// AttachmentActionOptionGroup is a semi-hierarchal way to list available options to appear in action menu.
+type AttachmentActionOptionGroup struct {
+	Text    string                   `json:"text"`    // Required.
+	Options []AttachmentActionOption `json:"options"` // Required.
 }
 
 // AttachmentActionCallback is sent from Slack when a user clicks a button in an interactive message (aka AttachmentAction)

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

@@ -1,6 +1,7 @@
 package slack
 
 import (
+	"context"
 	"errors"
 	"net/url"
 )
@@ -18,9 +19,9 @@ type botResponseFull struct {
 	SlackResponse
 }
 
-func botRequest(path string, values url.Values, debug bool) (*botResponseFull, error) {
+func botRequest(ctx context.Context, path string, values url.Values, debug bool) (*botResponseFull, error) {
 	response := &botResponseFull{}
-	err := post(path, values, response, debug)
+	err := post(ctx, path, values, response, debug)
 	if err != nil {
 		return nil, err
 	}
@@ -32,11 +33,16 @@ func botRequest(path string, values url.Values, debug bool) (*botResponseFull, e
 
 // GetBotInfo will retrieve the complete bot information
 func (api *Client) GetBotInfo(bot string) (*Bot, error) {
+	return api.GetBotInfoContext(context.Background(), bot)
+}
+
+// GetBotInfoContext will retrieve the complete bot information using a custom context
+func (api *Client) GetBotInfoContext(ctx context.Context, bot string) (*Bot, error) {
 	values := url.Values{
 		"token": {api.config.token},
 		"bot":   {bot},
 	}
-	response, err := botRequest("bots.info", values, api.debug)
+	response, err := botRequest(ctx, "bots.info", values, api.debug)
 	if err != nil {
 		return nil, err
 	}

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

@@ -1,6 +1,7 @@
 package slack
 
 import (
+	"context"
 	"errors"
 	"net/url"
 	"strconv"
@@ -24,9 +25,9 @@ type Channel struct {
 	IsMember  bool `json:"is_member"`
 }
 
-func channelRequest(path string, values url.Values, debug bool) (*channelResponseFull, error) {
+func channelRequest(ctx context.Context, path string, values url.Values, debug bool) (*channelResponseFull, error) {
 	response := &channelResponseFull{}
-	err := post(path, values, response, debug)
+	err := post(ctx, path, values, response, debug)
 	if err != nil {
 		return nil, err
 	}
@@ -38,11 +39,16 @@ func channelRequest(path string, values url.Values, debug bool) (*channelRespons
 
 // ArchiveChannel archives the given channel
 func (api *Client) ArchiveChannel(channel string) error {
+	return api.ArchiveChannelContext(context.Background(), channel)
+}
+
+// ArchiveChannelContext archives the given channel with a custom context
+func (api *Client) ArchiveChannelContext(ctx context.Context, channel string) error {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {channel},
 	}
-	_, err := channelRequest("channels.archive", values, api.debug)
+	_, err := channelRequest(ctx, "channels.archive", values, api.debug)
 	if err != nil {
 		return err
 	}
@@ -51,11 +57,16 @@ func (api *Client) ArchiveChannel(channel string) error {
 
 // UnarchiveChannel unarchives the given channel
 func (api *Client) UnarchiveChannel(channel string) error {
+	return api.UnarchiveChannelContext(context.Background(), channel)
+}
+
+// UnarchiveChannelContext unarchives the given channel with a custom context
+func (api *Client) UnarchiveChannelContext(ctx context.Context, channel string) error {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {channel},
 	}
-	_, err := channelRequest("channels.unarchive", values, api.debug)
+	_, err := channelRequest(ctx, "channels.unarchive", values, api.debug)
 	if err != nil {
 		return err
 	}
@@ -64,11 +75,16 @@ func (api *Client) UnarchiveChannel(channel string) error {
 
 // CreateChannel creates a channel with the given name and returns a *Channel
 func (api *Client) CreateChannel(channel string) (*Channel, error) {
+	return api.CreateChannelContext(context.Background(), channel)
+}
+
+// CreateChannelContext creates a channel with the given name and returns a *Channel with a custom context
+func (api *Client) CreateChannelContext(ctx context.Context, channel string) (*Channel, error) {
 	values := url.Values{
 		"token": {api.config.token},
 		"name":  {channel},
 	}
-	response, err := channelRequest("channels.create", values, api.debug)
+	response, err := channelRequest(ctx, "channels.create", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -77,6 +93,11 @@ func (api *Client) CreateChannel(channel string) (*Channel, error) {
 
 // GetChannelHistory retrieves the channel history
 func (api *Client) GetChannelHistory(channel string, params HistoryParameters) (*History, error) {
+	return api.GetChannelHistoryContext(context.Background(), channel, params)
+}
+
+// GetChannelHistoryContext retrieves the channel history with a custom context
+func (api *Client) GetChannelHistoryContext(ctx context.Context, channel string, params HistoryParameters) (*History, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {channel},
@@ -104,7 +125,7 @@ func (api *Client) GetChannelHistory(channel string, params HistoryParameters) (
 			values.Add("unreads", "0")
 		}
 	}
-	response, err := channelRequest("channels.history", values, api.debug)
+	response, err := channelRequest(ctx, "channels.history", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -113,11 +134,16 @@ func (api *Client) GetChannelHistory(channel string, params HistoryParameters) (
 
 // GetChannelInfo retrieves the given channel
 func (api *Client) GetChannelInfo(channel string) (*Channel, error) {
+	return api.GetChannelInfoContext(context.Background(), channel)
+}
+
+// GetChannelInfoContext retrieves the given channel with a custom context
+func (api *Client) GetChannelInfoContext(ctx context.Context, channel string) (*Channel, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {channel},
 	}
-	response, err := channelRequest("channels.info", values, api.debug)
+	response, err := channelRequest(ctx, "channels.info", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -126,12 +152,17 @@ func (api *Client) GetChannelInfo(channel string) (*Channel, error) {
 
 // InviteUserToChannel invites a user to a given channel and returns a *Channel
 func (api *Client) InviteUserToChannel(channel, user string) (*Channel, error) {
+	return api.InviteUserToChannelContext(context.Background(), channel, user)
+}
+
+// InviteUserToChannelCustom invites a user to a given channel and returns a *Channel with a custom context
+func (api *Client) InviteUserToChannelContext(ctx context.Context, channel, user string) (*Channel, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {channel},
 		"user":    {user},
 	}
-	response, err := channelRequest("channels.invite", values, api.debug)
+	response, err := channelRequest(ctx, "channels.invite", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -140,11 +171,16 @@ func (api *Client) InviteUserToChannel(channel, user string) (*Channel, error) {
 
 // JoinChannel joins the currently authenticated user to a channel
 func (api *Client) JoinChannel(channel string) (*Channel, error) {
+	return api.JoinChannelContext(context.Background(), channel)
+}
+
+// JoinChannelContext joins the currently authenticated user to a channel with a custom context
+func (api *Client) JoinChannelContext(ctx context.Context, channel string) (*Channel, error) {
 	values := url.Values{
 		"token": {api.config.token},
 		"name":  {channel},
 	}
-	response, err := channelRequest("channels.join", values, api.debug)
+	response, err := channelRequest(ctx, "channels.join", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -153,11 +189,16 @@ func (api *Client) JoinChannel(channel string) (*Channel, error) {
 
 // LeaveChannel makes the authenticated user leave the given channel
 func (api *Client) LeaveChannel(channel string) (bool, error) {
+	return api.LeaveChannelContext(context.Background(), channel)
+}
+
+// LeaveChannelContext makes the authenticated user leave the given channel with a custom context
+func (api *Client) LeaveChannelContext(ctx context.Context, channel string) (bool, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {channel},
 	}
-	response, err := channelRequest("channels.leave", values, api.debug)
+	response, err := channelRequest(ctx, "channels.leave", values, api.debug)
 	if err != nil {
 		return false, err
 	}
@@ -169,12 +210,17 @@ func (api *Client) LeaveChannel(channel string) (bool, error) {
 
 // KickUserFromChannel kicks a user from a given channel
 func (api *Client) KickUserFromChannel(channel, user string) error {
+	return api.KickUserFromChannelContext(context.Background(), channel, user)
+}
+
+// KickUserFromChannelContext kicks a user from a given channel with a custom context
+func (api *Client) KickUserFromChannelContext(ctx context.Context, channel, user string) error {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {channel},
 		"user":    {user},
 	}
-	_, err := channelRequest("channels.kick", values, api.debug)
+	_, err := channelRequest(ctx, "channels.kick", values, api.debug)
 	if err != nil {
 		return err
 	}
@@ -183,13 +229,18 @@ func (api *Client) KickUserFromChannel(channel, user string) error {
 
 // GetChannels retrieves all the channels
 func (api *Client) GetChannels(excludeArchived bool) ([]Channel, error) {
+	return api.GetChannelsContext(context.Background(), excludeArchived)
+}
+
+// GetChannelsContext retrieves all the channels with a custom context
+func (api *Client) GetChannelsContext(ctx context.Context, excludeArchived bool) ([]Channel, error) {
 	values := url.Values{
 		"token": {api.config.token},
 	}
 	if excludeArchived {
 		values.Add("exclude_archived", "1")
 	}
-	response, err := channelRequest("channels.list", values, api.debug)
+	response, err := channelRequest(ctx, "channels.list", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -202,12 +253,18 @@ func (api *Client) GetChannels(excludeArchived bool) ([]Channel, error) {
 // (just one per channel). This is useful for when reading scroll-back history, or following a busy live channel. A
 // timeout of 5 seconds is a good starting point. Be sure to flush these calls on shutdown/logout.
 func (api *Client) SetChannelReadMark(channel, ts string) error {
+	return api.SetChannelReadMarkContext(context.Background(), channel, ts)
+}
+
+// SetChannelReadMarkContext sets the read mark of a given channel to a specific point with a custom context
+// For more details see SetChannelReadMark documentation
+func (api *Client) SetChannelReadMarkContext(ctx context.Context, channel, ts string) error {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {channel},
 		"ts":      {ts},
 	}
-	_, err := channelRequest("channels.mark", values, api.debug)
+	_, err := channelRequest(ctx, "channels.mark", values, api.debug)
 	if err != nil {
 		return err
 	}
@@ -216,6 +273,11 @@ func (api *Client) SetChannelReadMark(channel, ts string) error {
 
 // RenameChannel renames a given channel
 func (api *Client) RenameChannel(channel, name string) (*Channel, error) {
+	return api.RenameChannelContext(context.Background(), channel, name)
+}
+
+// RenameChannelContext renames a given channel with a custom context
+func (api *Client) RenameChannelContext(ctx context.Context, channel, name string) (*Channel, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {channel},
@@ -223,23 +285,26 @@ func (api *Client) RenameChannel(channel, name string) (*Channel, error) {
 	}
 	// XXX: the created entry in this call returns a string instead of a number
 	// so I may have to do some workaround to solve it.
-	response, err := channelRequest("channels.rename", values, api.debug)
+	response, err := channelRequest(ctx, "channels.rename", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
 	return &response.Channel, nil
-
 }
 
-// SetChannelPurpose sets the channel purpose and returns the purpose that was
-// successfully set
+// SetChannelPurpose sets the channel purpose and returns the purpose that was successfully set
 func (api *Client) SetChannelPurpose(channel, purpose string) (string, error) {
+	return api.SetChannelPurposeContext(context.Background(), channel, purpose)
+}
+
+// SetChannelPurposeContext sets the channel purpose and returns the purpose that was successfully set with a custom context
+func (api *Client) SetChannelPurposeContext(ctx context.Context, channel, purpose string) (string, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {channel},
 		"purpose": {purpose},
 	}
-	response, err := channelRequest("channels.setPurpose", values, api.debug)
+	response, err := channelRequest(ctx, "channels.setPurpose", values, api.debug)
 	if err != nil {
 		return "", err
 	}
@@ -248,14 +313,38 @@ func (api *Client) SetChannelPurpose(channel, purpose string) (string, error) {
 
 // SetChannelTopic sets the channel topic and returns the topic that was successfully set
 func (api *Client) SetChannelTopic(channel, topic string) (string, error) {
+	return api.SetChannelTopicContext(context.Background(), channel, topic)
+}
+
+// SetChannelTopicContext sets the channel topic and returns the topic that was successfully set with a custom context
+func (api *Client) SetChannelTopicContext(ctx context.Context, channel, topic string) (string, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {channel},
 		"topic":   {topic},
 	}
-	response, err := channelRequest("channels.setTopic", values, api.debug)
+	response, err := channelRequest(ctx, "channels.setTopic", values, api.debug)
 	if err != nil {
 		return "", err
 	}
 	return response.Topic, nil
 }
+
+// GetChannelReplies gets an entire thread (a message plus all the messages in reply to it).
+func (api *Client) GetChannelReplies(channel, thread_ts string) ([]Message, error) {
+	return api.GetChannelRepliesContext(context.Background(), channel, thread_ts)
+}
+
+// GetChannelRepliesContext gets an entire thread (a message plus all the messages in reply to it) with a custom context
+func (api *Client) GetChannelRepliesContext(ctx context.Context, channel, thread_ts string) ([]Message, error) {
+	values := url.Values{
+		"token":     {api.config.token},
+		"channel":   {channel},
+		"thread_ts": {thread_ts},
+	}
+	response, err := channelRequest(ctx, "channels.replies", values, api.debug)
+	if err != nil {
+		return nil, err
+	}
+	return response.History.Messages, nil
+}

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

@@ -1,6 +1,7 @@
 package slack
 
 import (
+	"context"
 	"encoding/json"
 	"errors"
 	"net/url"
@@ -62,9 +63,102 @@ func NewPostMessageParameters() PostMessageParameters {
 	}
 }
 
-func chatRequest(path string, values url.Values, debug bool) (*chatResponseFull, error) {
+// DeleteMessage deletes a message in a channel
+func (api *Client) DeleteMessage(channel, messageTimestamp string) (string, string, error) {
+	respChannel, respTimestamp, _, err := api.SendMessageContext(context.Background(), channel, MsgOptionDelete(messageTimestamp))
+	return respChannel, respTimestamp, err
+}
+
+// DeleteMessageContext deletes a message in a channel with a custom context
+func (api *Client) DeleteMessageContext(ctx context.Context, channel, messageTimestamp string) (string, string, error) {
+	respChannel, respTimestamp, _, err := api.SendMessageContext(ctx, channel, MsgOptionDelete(messageTimestamp))
+	return respChannel, respTimestamp, err
+}
+
+// PostMessage sends a message to a channel.
+// Message is escaped by default according to https://api.slack.com/docs/formatting
+// Use http://davestevens.github.io/slack-message-builder/ to help crafting your message.
+func (api *Client) PostMessage(channel, text string, params PostMessageParameters) (string, string, error) {
+	respChannel, respTimestamp, _, err := api.SendMessageContext(
+		context.Background(),
+		channel,
+		MsgOptionText(text, params.EscapeText),
+		MsgOptionAttachments(params.Attachments...),
+		MsgOptionPostMessageParameters(params),
+	)
+	return respChannel, respTimestamp, err
+}
+
+// PostMessageContext sends a message to a channel with a custom context
+// For more details, see PostMessage documentation
+func (api *Client) PostMessageContext(ctx context.Context, channel, text string, params PostMessageParameters) (string, string, error) {
+	respChannel, respTimestamp, _, err := api.SendMessageContext(
+		ctx,
+		channel,
+		MsgOptionText(text, params.EscapeText),
+		MsgOptionAttachments(params.Attachments...),
+		MsgOptionPostMessageParameters(params),
+	)
+	return respChannel, respTimestamp, err
+}
+
+// UpdateMessage updates a message in a channel
+func (api *Client) UpdateMessage(channel, timestamp, text string) (string, string, string, error) {
+	return api.UpdateMessageContext(context.Background(), channel, timestamp, text)
+}
+
+// UpdateMessage updates a message in a channel
+func (api *Client) UpdateMessageContext(ctx context.Context, channel, timestamp, text string) (string, string, string, error) {
+	return api.SendMessageContext(ctx, channel, MsgOptionUpdate(timestamp), MsgOptionText(text, true))
+}
+
+// SendMessage more flexible method for configuring messages.
+func (api *Client) SendMessage(channel string, options ...MsgOption) (string, string, string, error) {
+	return api.SendMessageContext(context.Background(), channel, options...)
+}
+
+// SendMessageContext more flexible method for configuring messages with a custom context.
+func (api *Client) SendMessageContext(ctx context.Context, channel string, options ...MsgOption) (string, string, string, error) {
+	channel, values, err := ApplyMsgOptions(api.config.token, channel, options...)
+	if err != nil {
+		return "", "", "", err
+	}
+
+	response, err := chatRequest(ctx, channel, values, api.debug)
+	if err != nil {
+		return "", "", "", err
+	}
+
+	return response.Channel, response.Timestamp, response.Text, nil
+}
+
+// ApplyMsgOptions utility function for debugging/testing chat requests.
+func ApplyMsgOptions(token, channel string, options ...MsgOption) (string, url.Values, error) {
+	config := sendConfig{
+		mode: chatPostMessage,
+		values: url.Values{
+			"token":   {token},
+			"channel": {channel},
+		},
+	}
+
+	for _, opt := range options {
+		if err := opt(&config); err != nil {
+			return string(config.mode), config.values, err
+		}
+	}
+
+	return string(config.mode), config.values, nil
+}
+
+func escapeMessage(message string) string {
+	replacer := strings.NewReplacer("&", "&amp;", "<", "&lt;", ">", "&gt;")
+	return replacer.Replace(message)
+}
+
+func chatRequest(ctx context.Context, path string, values url.Values, debug bool) (*chatResponseFull, error) {
 	response := &chatResponseFull{}
-	err := post(path, values, response, debug)
+	err := post(ctx, path, values, response, debug)
 	if err != nil {
 		return nil, err
 	}
@@ -74,98 +168,153 @@ func chatRequest(path string, values url.Values, debug bool) (*chatResponseFull,
 	return response, nil
 }
 
-// DeleteMessage deletes a message in a channel
-func (api *Client) DeleteMessage(channel, messageTimestamp string) (string, string, error) {
-	values := url.Values{
-		"token":   {api.config.token},
-		"channel": {channel},
-		"ts":      {messageTimestamp},
-	}
-	response, err := chatRequest("chat.delete", values, api.debug)
-	if err != nil {
-		return "", "", err
-	}
-	return response.Channel, response.Timestamp, nil
+type sendMode string
+
+const (
+	chatUpdate      sendMode = "chat.update"
+	chatPostMessage sendMode = "chat.postMessage"
+	chatDelete      sendMode = "chat.delete"
+)
+
+type sendConfig struct {
+	mode   sendMode
+	values url.Values
 }
 
-func escapeMessage(message string) string {
-	replacer := strings.NewReplacer("&", "&amp;", "<", "&lt;", ">", "&gt;")
-	return replacer.Replace(message)
+// MsgOption option provided when sending a message.
+type MsgOption func(*sendConfig) error
+
+// MsgOptionPost posts a messages, this is the default.
+func MsgOptionPost() MsgOption {
+	return func(config *sendConfig) error {
+		config.mode = chatPostMessage
+		config.values.Del("ts")
+		return nil
+	}
 }
 
-// PostMessage sends a message to a channel.
-// Message is escaped by default according to https://api.slack.com/docs/formatting
-// Use http://davestevens.github.io/slack-message-builder/ to help crafting your message.
-func (api *Client) PostMessage(channel, text string, params PostMessageParameters) (string, string, error) {
-	if params.EscapeText {
-		text = escapeMessage(text)
+// MsgOptionUpdate updates a message based on the timestamp.
+func MsgOptionUpdate(timestamp string) MsgOption {
+	return func(config *sendConfig) error {
+		config.mode = chatUpdate
+		config.values.Add("ts", timestamp)
+		return nil
 	}
-	values := url.Values{
-		"token":   {api.config.token},
-		"channel": {channel},
-		"text":    {text},
+}
+
+// MsgOptionDelete deletes a message based on the timestamp.
+func MsgOptionDelete(timestamp string) MsgOption {
+	return func(config *sendConfig) error {
+		config.mode = chatDelete
+		config.values.Add("ts", timestamp)
+		return nil
 	}
-	if params.Username != DEFAULT_MESSAGE_USERNAME {
-		values.Set("username", string(params.Username))
-	}
-	if params.AsUser != DEFAULT_MESSAGE_ASUSER {
-		values.Set("as_user", "true")
-	}
-	if params.Parse != DEFAULT_MESSAGE_PARSE {
-		values.Set("parse", string(params.Parse))
-	}
-	if params.LinkNames != DEFAULT_MESSAGE_LINK_NAMES {
-		values.Set("link_names", "1")
-	}
-	if params.Attachments != nil {
-		attachments, err := json.Marshal(params.Attachments)
-		if err != nil {
-			return "", "", err
+}
+
+// MsgOptionAsUser whether or not to send the message as the user.
+func MsgOptionAsUser(b bool) MsgOption {
+	return func(config *sendConfig) error {
+		if b != DEFAULT_MESSAGE_ASUSER {
+			config.values.Set("as_user", "true")
 		}
-		values.Set("attachments", string(attachments))
+		return nil
 	}
-	if params.UnfurlLinks != DEFAULT_MESSAGE_UNFURL_LINKS {
-		values.Set("unfurl_links", "true")
-	}
-	// I want to send a message with explicit `as_user` `true` and `unfurl_links` `false` in request.
-	// Because setting `as_user` to `true` will change the default value for `unfurl_links` to `true` on Slack API side.
-	if params.AsUser != DEFAULT_MESSAGE_ASUSER && params.UnfurlLinks == DEFAULT_MESSAGE_UNFURL_LINKS {
-		values.Set("unfurl_links", "false")
-	}
-	if params.UnfurlMedia != DEFAULT_MESSAGE_UNFURL_MEDIA {
-		values.Set("unfurl_media", "false")
-	}
-	if params.IconURL != DEFAULT_MESSAGE_ICON_URL {
-		values.Set("icon_url", params.IconURL)
-	}
-	if params.IconEmoji != DEFAULT_MESSAGE_ICON_EMOJI {
-		values.Set("icon_emoji", params.IconEmoji)
-	}
-	if params.Markdown != DEFAULT_MESSAGE_MARKDOWN {
-		values.Set("mrkdwn", "false")
-	}
-	if params.ThreadTimestamp != DEFAULT_MESSAGE_THREAD_TIMESTAMP {
-		values.Set("thread_ts", params.ThreadTimestamp)
-	}
-
-	response, err := chatRequest("chat.postMessage", values, api.debug)
-	if err != nil {
-		return "", "", err
-	}
-	return response.Channel, response.Timestamp, nil
 }
 
-// UpdateMessage updates a message in a channel
-func (api *Client) UpdateMessage(channel, timestamp, text string) (string, string, string, error) {
-	values := url.Values{
-		"token":   {api.config.token},
-		"channel": {channel},
-		"text":    {escapeMessage(text)},
-		"ts":      {timestamp},
+// MsgOptionText provide the text for the message, optionally escape the provided
+// text.
+func MsgOptionText(text string, escape bool) MsgOption {
+	return func(config *sendConfig) error {
+		if escape {
+			text = escapeMessage(text)
+		}
+		config.values.Add("text", text)
+		return nil
+	}
+}
+
+// MsgOptionAttachments provide attachments for the message.
+func MsgOptionAttachments(attachments ...Attachment) MsgOption {
+	return func(config *sendConfig) error {
+		if attachments == nil {
+			return nil
+		}
+
+		attachments, err := json.Marshal(attachments)
+		if err == nil {
+			config.values.Set("attachments", string(attachments))
+		}
+		return err
+	}
+}
+
+// MsgOptionEnableLinkUnfurl enables link unfurling
+func MsgOptionEnableLinkUnfurl() MsgOption {
+	return func(config *sendConfig) error {
+		config.values.Set("unfurl_links", "true")
+		return nil
+	}
+}
+
+// MsgOptionDisableMediaUnfurl disables media unfurling.
+func MsgOptionDisableMediaUnfurl() MsgOption {
+	return func(config *sendConfig) error {
+		config.values.Set("unfurl_media", "false")
+		return nil
+	}
+}
+
+// MsgOptionDisableMarkdown disables markdown.
+func MsgOptionDisableMarkdown() MsgOption {
+	return func(config *sendConfig) error {
+		config.values.Set("mrkdwn", "false")
+		return nil
+	}
+}
+
+// MsgOptionPostMessageParameters maintain backwards compatibility.
+func MsgOptionPostMessageParameters(params PostMessageParameters) MsgOption {
+	return func(config *sendConfig) error {
+		if params.Username != DEFAULT_MESSAGE_USERNAME {
+			config.values.Set("username", string(params.Username))
+		}
+
+		// never generates an error.
+		MsgOptionAsUser(params.AsUser)(config)
+
+		if params.Parse != DEFAULT_MESSAGE_PARSE {
+			config.values.Set("parse", string(params.Parse))
+		}
+		if params.LinkNames != DEFAULT_MESSAGE_LINK_NAMES {
+			config.values.Set("link_names", "1")
+		}
+
+		if params.UnfurlLinks != DEFAULT_MESSAGE_UNFURL_LINKS {
+			config.values.Set("unfurl_links", "true")
+		}
+
+		// I want to send a message with explicit `as_user` `true` and `unfurl_links` `false` in request.
+		// Because setting `as_user` to `true` will change the default value for `unfurl_links` to `true` on Slack API side.
+		if params.AsUser != DEFAULT_MESSAGE_ASUSER && params.UnfurlLinks == DEFAULT_MESSAGE_UNFURL_LINKS {
+			config.values.Set("unfurl_links", "false")
+		}
+		if params.UnfurlMedia != DEFAULT_MESSAGE_UNFURL_MEDIA {
+			config.values.Set("unfurl_media", "false")
+		}
+		if params.IconURL != DEFAULT_MESSAGE_ICON_URL {
+			config.values.Set("icon_url", params.IconURL)
+		}
+		if params.IconEmoji != DEFAULT_MESSAGE_ICON_EMOJI {
+			config.values.Set("icon_emoji", params.IconEmoji)
+		}
+		if params.Markdown != DEFAULT_MESSAGE_MARKDOWN {
+			config.values.Set("mrkdwn", "false")
+		}
+
+		if params.ThreadTimestamp != DEFAULT_MESSAGE_THREAD_TIMESTAMP {
+			config.values.Set("thread_ts", params.ThreadTimestamp)
+		}
+
+		return nil
 	}
-	response, err := chatRequest("chat.update", values, api.debug)
-	if err != nil {
-		return "", "", "", err
-	}
-	return response.Channel, response.Timestamp, response.Text, nil
 }

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

@@ -1,6 +1,7 @@
 package slack
 
 import (
+	"context"
 	"errors"
 	"net/url"
 	"strconv"
@@ -35,9 +36,9 @@ type dndTeamInfoResponse struct {
 	SlackResponse
 }
 
-func dndRequest(path string, values url.Values, debug bool) (*dndResponseFull, error) {
+func dndRequest(ctx context.Context, path string, values url.Values, debug bool) (*dndResponseFull, error) {
 	response := &dndResponseFull{}
-	err := post(path, values, response, debug)
+	err := post(ctx, path, values, response, debug)
 	if err != nil {
 		return nil, err
 	}
@@ -49,12 +50,17 @@ func dndRequest(path string, values url.Values, debug bool) (*dndResponseFull, e
 
 // EndDND ends the user's scheduled Do Not Disturb session
 func (api *Client) EndDND() error {
+	return api.EndDNDContext(context.Background())
+}
+
+// EndDNDContext ends the user's scheduled Do Not Disturb session with a custom context
+func (api *Client) EndDNDContext(ctx context.Context) error {
 	values := url.Values{
 		"token": {api.config.token},
 	}
 
 	response := &SlackResponse{}
-	if err := post("dnd.endDnd", values, response, api.debug); err != nil {
+	if err := post(ctx, "dnd.endDnd", values, response, api.debug); err != nil {
 		return err
 	}
 	if !response.Ok {
@@ -65,11 +71,16 @@ func (api *Client) EndDND() error {
 
 // EndSnooze ends the current user's snooze mode
 func (api *Client) EndSnooze() (*DNDStatus, error) {
+	return api.EndSnoozeContext(context.Background())
+}
+
+// EndSnoozeContext ends the current user's snooze mode with a custom context
+func (api *Client) EndSnoozeContext(ctx context.Context) (*DNDStatus, error) {
 	values := url.Values{
 		"token": {api.config.token},
 	}
 
-	response, err := dndRequest("dnd.endSnooze", values, api.debug)
+	response, err := dndRequest(ctx, "dnd.endSnooze", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -78,13 +89,18 @@ func (api *Client) EndSnooze() (*DNDStatus, error) {
 
 // GetDNDInfo provides information about a user's current Do Not Disturb settings.
 func (api *Client) GetDNDInfo(user *string) (*DNDStatus, error) {
+	return api.GetDNDInfoContext(context.Background(), user)
+}
+
+// GetDNDInfoContext provides information about a user's current Do Not Disturb settings with a custom context.
+func (api *Client) GetDNDInfoContext(ctx context.Context, user *string) (*DNDStatus, error) {
 	values := url.Values{
 		"token": {api.config.token},
 	}
 	if user != nil {
 		values.Set("user", *user)
 	}
-	response, err := dndRequest("dnd.info", values, api.debug)
+	response, err := dndRequest(ctx, "dnd.info", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -93,12 +109,17 @@ func (api *Client) GetDNDInfo(user *string) (*DNDStatus, error) {
 
 // GetDNDTeamInfo provides information about a user's current Do Not Disturb settings.
 func (api *Client) GetDNDTeamInfo(users []string) (map[string]DNDStatus, error) {
+	return api.GetDNDTeamInfoContext(context.Background(), users)
+}
+
+// GetDNDTeamInfoContext provides information about a user's current Do Not Disturb settings with a custom context.
+func (api *Client) GetDNDTeamInfoContext(ctx context.Context, users []string) (map[string]DNDStatus, error) {
 	values := url.Values{
 		"token": {api.config.token},
 		"users": {strings.Join(users, ",")},
 	}
 	response := &dndTeamInfoResponse{}
-	if err := post("dnd.teamInfo", values, response, api.debug); err != nil {
+	if err := post(ctx, "dnd.teamInfo", values, response, api.debug); err != nil {
 		return nil, err
 	}
 	if !response.Ok {
@@ -111,11 +132,17 @@ func (api *Client) GetDNDTeamInfo(users []string) (map[string]DNDStatus, error)
 // settings. If a snooze session is not already active for the user, invoking
 // this method will begin one for the specified duration.
 func (api *Client) SetSnooze(minutes int) (*DNDStatus, error) {
+	return api.SetSnoozeContext(context.Background(), minutes)
+}
+
+// SetSnooze adjusts the snooze duration for a user's Do Not Disturb settings with a custom context.
+// For more information see the SetSnooze docs
+func (api *Client) SetSnoozeContext(ctx context.Context, minutes int) (*DNDStatus, error) {
 	values := url.Values{
 		"token":       {api.config.token},
 		"num_minutes": {strconv.Itoa(minutes)},
 	}
-	response, err := dndRequest("dnd.setSnooze", values, api.debug)
+	response, err := dndRequest(ctx, "dnd.setSnooze", values, api.debug)
 	if err != nil {
 		return nil, err
 	}

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

@@ -1,6 +1,7 @@
 package slack
 
 import (
+	"context"
 	"errors"
 	"net/url"
 )
@@ -12,11 +13,16 @@ type emojiResponseFull struct {
 
 // GetEmoji retrieves all the emojis
 func (api *Client) GetEmoji() (map[string]string, error) {
+	return api.GetEmojiContext(context.Background())
+}
+
+// GetEmojiContext retrieves all the emojis with a custom context
+func (api *Client) GetEmojiContext(ctx context.Context) (map[string]string, error) {
 	values := url.Values{
 		"token": {api.config.token},
 	}
 	response := &emojiResponseFull{}
-	err := post("emoji.list", values, response, api.debug)
+	err := post(ctx, "emoji.list", values, response, api.debug)
 	if err != nil {
 		return nil, err
 	}

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

@@ -14,6 +14,8 @@ func main() {
 		return
 	}
 	for _, channel := range channels {
-		fmt.Println(channel.ID)
+		fmt.Println(channel.Name)
+		// channel is of type conversation & groupConversation
+		// see all available methods in `conversation.go`
 	}
 }

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

@@ -1,7 +1,9 @@
 package slack
 
 import (
+	"context"
 	"errors"
+	"io"
 	"net/url"
 	"strconv"
 	"strings"
@@ -86,10 +88,14 @@ type File struct {
 	IsStarred       bool     `json:"is_starred"`
 }
 
-// FileUploadParameters contains all the parameters necessary (including the optional ones) for an UploadFile() request
+// FileUploadParameters contains all the parameters necessary (including the optional ones) for an UploadFile() request.
+//
+// There are three ways to upload a file. You can either set Content if file is small, set Reader if file is large,
+// or provide a local file path in File to upload it from your filesystem.
 type FileUploadParameters struct {
 	File           string
 	Content        string
+	Reader         io.Reader
 	Filetype       string
 	Filename       string
 	Title          string
@@ -130,9 +136,9 @@ func NewGetFilesParameters() GetFilesParameters {
 	}
 }
 
-func fileRequest(path string, values url.Values, debug bool) (*fileResponseFull, error) {
+func fileRequest(ctx context.Context, path string, values url.Values, debug bool) (*fileResponseFull, error) {
 	response := &fileResponseFull{}
-	err := post(path, values, response, debug)
+	err := post(ctx, path, values, response, debug)
 	if err != nil {
 		return nil, err
 	}
@@ -144,13 +150,18 @@ func fileRequest(path string, values url.Values, debug bool) (*fileResponseFull,
 
 // GetFileInfo retrieves a file and related comments
 func (api *Client) GetFileInfo(fileID string, count, page int) (*File, []Comment, *Paging, error) {
+	return api.GetFileInfoContext(context.Background(), fileID, count, page)
+}
+
+// GetFileInfoContext retrieves a file and related comments with a custom context
+func (api *Client) GetFileInfoContext(ctx context.Context, fileID string, count, page int) (*File, []Comment, *Paging, error) {
 	values := url.Values{
 		"token": {api.config.token},
 		"file":  {fileID},
 		"count": {strconv.Itoa(count)},
 		"page":  {strconv.Itoa(page)},
 	}
-	response, err := fileRequest("files.info", values, api.debug)
+	response, err := fileRequest(ctx, "files.info", values, api.debug)
 	if err != nil {
 		return nil, nil, nil, err
 	}
@@ -159,6 +170,11 @@ func (api *Client) GetFileInfo(fileID string, count, page int) (*File, []Comment
 
 // GetFiles retrieves all files according to the parameters given
 func (api *Client) GetFiles(params GetFilesParameters) ([]File, *Paging, error) {
+	return api.GetFilesContext(context.Background(), params)
+}
+
+// GetFilesContext retrieves all files according to the parameters given with a custom context
+func (api *Client) GetFilesContext(ctx context.Context, params GetFilesParameters) ([]File, *Paging, error) {
 	values := url.Values{
 		"token": {api.config.token},
 	}
@@ -168,12 +184,11 @@ func (api *Client) GetFiles(params GetFilesParameters) ([]File, *Paging, error)
 	if params.Channel != DEFAULT_FILES_CHANNEL {
 		values.Add("channel", params.Channel)
 	}
-	// XXX: this is broken. fix it with a proper unix timestamp
 	if params.TimestampFrom != DEFAULT_FILES_TS_FROM {
-		values.Add("ts_from", params.TimestampFrom.String())
+		values.Add("ts_from", strconv.FormatInt(int64(params.TimestampFrom), 10))
 	}
 	if params.TimestampTo != DEFAULT_FILES_TS_TO {
-		values.Add("ts_to", params.TimestampTo.String())
+		values.Add("ts_to", strconv.FormatInt(int64(params.TimestampTo), 10))
 	}
 	if params.Types != DEFAULT_FILES_TYPES {
 		values.Add("types", params.Types)
@@ -184,7 +199,7 @@ func (api *Client) GetFiles(params GetFilesParameters) ([]File, *Paging, error)
 	if params.Page != DEFAULT_FILES_PAGE {
 		values.Add("page", strconv.Itoa(params.Page))
 	}
-	response, err := fileRequest("files.list", values, api.debug)
+	response, err := fileRequest(ctx, "files.list", values, api.debug)
 	if err != nil {
 		return nil, nil, err
 	}
@@ -193,6 +208,11 @@ func (api *Client) GetFiles(params GetFilesParameters) ([]File, *Paging, error)
 
 // UploadFile uploads a file
 func (api *Client) UploadFile(params FileUploadParameters) (file *File, err error) {
+	return api.UploadFileContext(context.Background(), params)
+}
+
+// UploadFileContext uploads a file and setting a custom context
+func (api *Client) UploadFileContext(ctx context.Context, params FileUploadParameters) (file *File, err error) {
 	// Test if user token is valid. This helps because client.Do doesn't like this for some reason. XXX: More
 	// investigation needed, but for now this will do.
 	_, err = api.AuthTest()
@@ -220,9 +240,11 @@ func (api *Client) UploadFile(params FileUploadParameters) (file *File, err erro
 	}
 	if params.Content != "" {
 		values.Add("content", params.Content)
-		err = post("files.upload", values, response, api.debug)
+		err = post(ctx, "files.upload", values, response, api.debug)
 	} else if params.File != "" {
-		err = postWithMultipartResponse("files.upload", params.File, values, response, api.debug)
+		err = postLocalWithMultipartResponse(ctx, "files.upload", params.File, "file", values, response, api.debug)
+	} else if params.Reader != nil {
+		err = postWithMultipartResponse(ctx, "files.upload", params.Filename, "file", values, params.Reader, response, api.debug)
 	}
 	if err != nil {
 		return nil, err
@@ -235,11 +257,16 @@ func (api *Client) UploadFile(params FileUploadParameters) (file *File, err erro
 
 // DeleteFile deletes a file
 func (api *Client) DeleteFile(fileID string) error {
+	return api.DeleteFileContext(context.Background(), fileID)
+}
+
+// DeleteFileContext deletes a file with a custom context
+func (api *Client) DeleteFileContext(ctx context.Context, fileID string) error {
 	values := url.Values{
 		"token": {api.config.token},
 		"file":  {fileID},
 	}
-	_, err := fileRequest("files.delete", values, api.debug)
+	_, err := fileRequest(ctx, "files.delete", values, api.debug)
 	if err != nil {
 		return err
 	}
@@ -249,11 +276,16 @@ func (api *Client) DeleteFile(fileID string) error {
 
 // RevokeFilePublicURL disables public/external sharing for a file
 func (api *Client) RevokeFilePublicURL(fileID string) (*File, error) {
+	return api.RevokeFilePublicURLContext(context.Background(), fileID)
+}
+
+// RevokeFilePublicURLContext disables public/external sharing for a file with a custom context
+func (api *Client) RevokeFilePublicURLContext(ctx context.Context, fileID string) (*File, error) {
 	values := url.Values{
 		"token": {api.config.token},
 		"file":  {fileID},
 	}
-	response, err := fileRequest("files.revokePublicURL", values, api.debug)
+	response, err := fileRequest(ctx, "files.revokePublicURL", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -262,11 +294,16 @@ func (api *Client) RevokeFilePublicURL(fileID string) (*File, error) {
 
 // ShareFilePublicURL enabled public/external sharing for a file
 func (api *Client) ShareFilePublicURL(fileID string) (*File, []Comment, *Paging, error) {
+	return api.ShareFilePublicURLContext(context.Background(), fileID)
+}
+
+// ShareFilePublicURLContext enabled public/external sharing for a file with a custom context
+func (api *Client) ShareFilePublicURLContext(ctx context.Context, fileID string) (*File, []Comment, *Paging, error) {
 	values := url.Values{
 		"token": {api.config.token},
 		"file":  {fileID},
 	}
-	response, err := fileRequest("files.sharedPublicURL", values, api.debug)
+	response, err := fileRequest(ctx, "files.sharedPublicURL", values, api.debug)
 	if err != nil {
 		return nil, nil, nil, err
 	}

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

@@ -1,6 +1,7 @@
 package slack
 
 import (
+	"context"
 	"errors"
 	"net/url"
 	"strconv"
@@ -27,9 +28,9 @@ type groupResponseFull struct {
 	SlackResponse
 }
 
-func groupRequest(path string, values url.Values, debug bool) (*groupResponseFull, error) {
+func groupRequest(ctx context.Context, path string, values url.Values, debug bool) (*groupResponseFull, error) {
 	response := &groupResponseFull{}
-	err := post(path, values, response, debug)
+	err := post(ctx, path, values, response, debug)
 	if err != nil {
 		return nil, err
 	}
@@ -41,11 +42,16 @@ func groupRequest(path string, values url.Values, debug bool) (*groupResponseFul
 
 // ArchiveGroup archives a private group
 func (api *Client) ArchiveGroup(group string) error {
+	return api.ArchiveGroupContext(context.Background(), group)
+}
+
+// ArchiveGroup archives a private group
+func (api *Client) ArchiveGroupContext(ctx context.Context, group string) error {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {group},
 	}
-	_, err := groupRequest("groups.archive", values, api.debug)
+	_, err := groupRequest(ctx, "groups.archive", values, api.debug)
 	if err != nil {
 		return err
 	}
@@ -54,11 +60,16 @@ func (api *Client) ArchiveGroup(group string) error {
 
 // UnarchiveGroup unarchives a private group
 func (api *Client) UnarchiveGroup(group string) error {
+	return api.UnarchiveGroupContext(context.Background(), group)
+}
+
+// UnarchiveGroup unarchives a private group
+func (api *Client) UnarchiveGroupContext(ctx context.Context, group string) error {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {group},
 	}
-	_, err := groupRequest("groups.unarchive", values, api.debug)
+	_, err := groupRequest(ctx, "groups.unarchive", values, api.debug)
 	if err != nil {
 		return err
 	}
@@ -67,11 +78,16 @@ func (api *Client) UnarchiveGroup(group string) error {
 
 // CreateGroup creates a private group
 func (api *Client) CreateGroup(group string) (*Group, error) {
+	return api.CreateGroupContext(context.Background(), group)
+}
+
+// CreateGroup creates a private group
+func (api *Client) CreateGroupContext(ctx context.Context, group string) (*Group, error) {
 	values := url.Values{
 		"token": {api.config.token},
 		"name":  {group},
 	}
-	response, err := groupRequest("groups.create", values, api.debug)
+	response, err := groupRequest(ctx, "groups.create", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -85,11 +101,17 @@ func (api *Client) CreateGroup(group string) (*Group, error) {
 //   3. Creates a new group with the name of the existing group.
 //   4. Adds all members of the existing group to the new group.
 func (api *Client) CreateChildGroup(group string) (*Group, error) {
+	return api.CreateChildGroupContext(context.Background(), group)
+}
+
+// CreateChildGroup creates a new private group archiving the old one with a custom context
+// For more information see CreateChildGroup
+func (api *Client) CreateChildGroupContext(ctx context.Context, group string) (*Group, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {group},
 	}
-	response, err := groupRequest("groups.createChild", values, api.debug)
+	response, err := groupRequest(ctx, "groups.createChild", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -98,11 +120,16 @@ func (api *Client) CreateChildGroup(group string) (*Group, error) {
 
 // CloseGroup closes a private group
 func (api *Client) CloseGroup(group string) (bool, bool, error) {
+	return api.CloseGroupContext(context.Background(), group)
+}
+
+// CloseGroupContext closes a private group with a custom context
+func (api *Client) CloseGroupContext(ctx context.Context, group string) (bool, bool, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {group},
 	}
-	response, err := imRequest("groups.close", values, api.debug)
+	response, err := imRequest(ctx, "groups.close", values, api.debug)
 	if err != nil {
 		return false, false, err
 	}
@@ -111,6 +138,11 @@ func (api *Client) CloseGroup(group string) (bool, bool, error) {
 
 // GetGroupHistory fetches all the history for a private group
 func (api *Client) GetGroupHistory(group string, params HistoryParameters) (*History, error) {
+	return api.GetGroupHistoryContext(context.Background(), group, params)
+}
+
+// GetGroupHistoryContext fetches all the history for a private group with a custom context
+func (api *Client) GetGroupHistoryContext(ctx context.Context, group string, params HistoryParameters) (*History, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {group},
@@ -138,7 +170,7 @@ func (api *Client) GetGroupHistory(group string, params HistoryParameters) (*His
 			values.Add("unreads", "0")
 		}
 	}
-	response, err := groupRequest("groups.history", values, api.debug)
+	response, err := groupRequest(ctx, "groups.history", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -147,12 +179,17 @@ func (api *Client) GetGroupHistory(group string, params HistoryParameters) (*His
 
 // InviteUserToGroup invites a specific user to a private group
 func (api *Client) InviteUserToGroup(group, user string) (*Group, bool, error) {
+	return api.InviteUserToGroupContext(context.Background(), group, user)
+}
+
+// InviteUserToGroupContext invites a specific user to a private group with a custom context
+func (api *Client) InviteUserToGroupContext(ctx context.Context, group, user string) (*Group, bool, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {group},
 		"user":    {user},
 	}
-	response, err := groupRequest("groups.invite", values, api.debug)
+	response, err := groupRequest(ctx, "groups.invite", values, api.debug)
 	if err != nil {
 		return nil, false, err
 	}
@@ -161,11 +198,16 @@ func (api *Client) InviteUserToGroup(group, user string) (*Group, bool, error) {
 
 // LeaveGroup makes authenticated user leave the group
 func (api *Client) LeaveGroup(group string) error {
+	return api.LeaveGroupContext(context.Background(), group)
+}
+
+// LeaveGroupContext makes authenticated user leave the group with a custom context
+func (api *Client) LeaveGroupContext(ctx context.Context, group string) error {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {group},
 	}
-	_, err := groupRequest("groups.leave", values, api.debug)
+	_, err := groupRequest(ctx, "groups.leave", values, api.debug)
 	if err != nil {
 		return err
 	}
@@ -174,12 +216,17 @@ func (api *Client) LeaveGroup(group string) error {
 
 // KickUserFromGroup kicks a user from a group
 func (api *Client) KickUserFromGroup(group, user string) error {
+	return api.KickUserFromGroupContext(context.Background(), group, user)
+}
+
+// KickUserFromGroupContext kicks a user from a group with a custom context
+func (api *Client) KickUserFromGroupContext(ctx context.Context, group, user string) error {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {group},
 		"user":    {user},
 	}
-	_, err := groupRequest("groups.kick", values, api.debug)
+	_, err := groupRequest(ctx, "groups.kick", values, api.debug)
 	if err != nil {
 		return err
 	}
@@ -188,13 +235,18 @@ func (api *Client) KickUserFromGroup(group, user string) error {
 
 // GetGroups retrieves all groups
 func (api *Client) GetGroups(excludeArchived bool) ([]Group, error) {
+	return api.GetGroupsContext(context.Background(), excludeArchived)
+}
+
+// GetGroupsContext retrieves all groups with a custom context
+func (api *Client) GetGroupsContext(ctx context.Context, excludeArchived bool) ([]Group, error) {
 	values := url.Values{
 		"token": {api.config.token},
 	}
 	if excludeArchived {
 		values.Add("exclude_archived", "1")
 	}
-	response, err := groupRequest("groups.list", values, api.debug)
+	response, err := groupRequest(ctx, "groups.list", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -203,11 +255,16 @@ func (api *Client) GetGroups(excludeArchived bool) ([]Group, error) {
 
 // GetGroupInfo retrieves the given group
 func (api *Client) GetGroupInfo(group string) (*Group, error) {
+	return api.GetGroupInfoContext(context.Background(), group)
+}
+
+// GetGroupInfoContext retrieves the given group with a custom context
+func (api *Client) GetGroupInfoContext(ctx context.Context, group string) (*Group, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {group},
 	}
-	response, err := groupRequest("groups.info", values, api.debug)
+	response, err := groupRequest(ctx, "groups.info", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -220,12 +277,18 @@ func (api *Client) GetGroupInfo(group string) (*Group, error) {
 // calls (just one per channel). This is useful for when reading scroll-back history, or following a busy live
 // channel. A timeout of 5 seconds is a good starting point. Be sure to flush these calls on shutdown/logout.
 func (api *Client) SetGroupReadMark(group, ts string) error {
+	return api.SetGroupReadMarkContext(context.Background(), group, ts)
+}
+
+// SetGroupReadMarkContext sets the read mark on a private group with a custom context
+// For more details see SetGroupReadMark
+func (api *Client) SetGroupReadMarkContext(ctx context.Context, group, ts string) error {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {group},
 		"ts":      {ts},
 	}
-	_, err := groupRequest("groups.mark", values, api.debug)
+	_, err := groupRequest(ctx, "groups.mark", values, api.debug)
 	if err != nil {
 		return err
 	}
@@ -234,11 +297,16 @@ func (api *Client) SetGroupReadMark(group, ts string) error {
 
 // OpenGroup opens a private group
 func (api *Client) OpenGroup(group string) (bool, bool, error) {
+	return api.OpenGroupContext(context.Background(), group)
+}
+
+// OpenGroupContext opens a private group with a custom context
+func (api *Client) OpenGroupContext(ctx context.Context, group string) (bool, bool, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {group},
 	}
-	response, err := groupRequest("groups.open", values, api.debug)
+	response, err := groupRequest(ctx, "groups.open", values, api.debug)
 	if err != nil {
 		return false, false, err
 	}
@@ -249,6 +317,11 @@ func (api *Client) OpenGroup(group string) (bool, bool, error) {
 // XXX: They return a channel, not a group. What is this crap? :(
 // Inconsistent api it seems.
 func (api *Client) RenameGroup(group, name string) (*Channel, error) {
+	return api.RenameGroupContext(context.Background(), group, name)
+}
+
+// RenameGroupContext renames a group with a custom context
+func (api *Client) RenameGroupContext(ctx context.Context, group, name string) (*Channel, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {group},
@@ -256,22 +329,26 @@ func (api *Client) RenameGroup(group, name string) (*Channel, error) {
 	}
 	// XXX: the created entry in this call returns a string instead of a number
 	// so I may have to do some workaround to solve it.
-	response, err := groupRequest("groups.rename", values, api.debug)
+	response, err := groupRequest(ctx, "groups.rename", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
 	return &response.Channel, nil
-
 }
 
 // SetGroupPurpose sets the group purpose
 func (api *Client) SetGroupPurpose(group, purpose string) (string, error) {
+	return api.SetGroupPurposeContext(context.Background(), group, purpose)
+}
+
+// SetGroupPurposeContext sets the group purpose with a custom context
+func (api *Client) SetGroupPurposeContext(ctx context.Context, group, purpose string) (string, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {group},
 		"purpose": {purpose},
 	}
-	response, err := groupRequest("groups.setPurpose", values, api.debug)
+	response, err := groupRequest(ctx, "groups.setPurpose", values, api.debug)
 	if err != nil {
 		return "", err
 	}
@@ -280,12 +357,17 @@ func (api *Client) SetGroupPurpose(group, purpose string) (string, error) {
 
 // SetGroupTopic sets the group topic
 func (api *Client) SetGroupTopic(group, topic string) (string, error) {
+	return api.SetGroupTopicContext(context.Background(), group, topic)
+}
+
+// SetGroupTopicContext sets the group topic with a custom context
+func (api *Client) SetGroupTopicContext(ctx context.Context, group, topic string) (string, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {group},
 		"topic":   {topic},
 	}
-	response, err := groupRequest("groups.setTopic", values, api.debug)
+	response, err := groupRequest(ctx, "groups.setTopic", values, api.debug)
 	if err != nil {
 		return "", err
 	}

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

@@ -1,6 +1,7 @@
 package slack
 
 import (
+	"context"
 	"errors"
 	"net/url"
 	"strconv"
@@ -28,9 +29,9 @@ type IM struct {
 	IsUserDeleted bool   `json:"is_user_deleted"`
 }
 
-func imRequest(path string, values url.Values, debug bool) (*imResponseFull, error) {
+func imRequest(ctx context.Context, path string, values url.Values, debug bool) (*imResponseFull, error) {
 	response := &imResponseFull{}
-	err := post(path, values, response, debug)
+	err := post(ctx, path, values, response, debug)
 	if err != nil {
 		return nil, err
 	}
@@ -42,11 +43,16 @@ func imRequest(path string, values url.Values, debug bool) (*imResponseFull, err
 
 // CloseIMChannel closes the direct message channel
 func (api *Client) CloseIMChannel(channel string) (bool, bool, error) {
+	return api.CloseIMChannelContext(context.Background(), channel)
+}
+
+// CloseIMChannelContext closes the direct message channel with a custom context
+func (api *Client) CloseIMChannelContext(ctx context.Context, channel string) (bool, bool, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {channel},
 	}
-	response, err := imRequest("im.close", values, api.debug)
+	response, err := imRequest(ctx, "im.close", values, api.debug)
 	if err != nil {
 		return false, false, err
 	}
@@ -56,11 +62,17 @@ func (api *Client) CloseIMChannel(channel string) (bool, bool, error) {
 // OpenIMChannel opens a direct message channel to the user provided as argument
 // Returns some status and the channel ID
 func (api *Client) OpenIMChannel(user string) (bool, bool, string, error) {
+	return api.OpenIMChannelContext(context.Background(), user)
+}
+
+// OpenIMChannelContext opens a direct message channel to the user provided as argument with a custom context
+// Returns some status and the channel ID
+func (api *Client) OpenIMChannelContext(ctx context.Context, user string) (bool, bool, string, error) {
 	values := url.Values{
 		"token": {api.config.token},
 		"user":  {user},
 	}
-	response, err := imRequest("im.open", values, api.debug)
+	response, err := imRequest(ctx, "im.open", values, api.debug)
 	if err != nil {
 		return false, false, "", err
 	}
@@ -69,12 +81,17 @@ func (api *Client) OpenIMChannel(user string) (bool, bool, string, error) {
 
 // MarkIMChannel sets the read mark of a direct message channel to a specific point
 func (api *Client) MarkIMChannel(channel, ts string) (err error) {
+	return api.MarkIMChannelContext(context.Background(), channel, ts)
+}
+
+// MarkIMChannelContext sets the read mark of a direct message channel to a specific point with a custom context
+func (api *Client) MarkIMChannelContext(ctx context.Context, channel, ts string) (err error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {channel},
 		"ts":      {ts},
 	}
-	_, err = imRequest("im.mark", values, api.debug)
+	_, err = imRequest(ctx, "im.mark", values, api.debug)
 	if err != nil {
 		return err
 	}
@@ -83,6 +100,11 @@ func (api *Client) MarkIMChannel(channel, ts string) (err error) {
 
 // GetIMHistory retrieves the direct message channel history
 func (api *Client) GetIMHistory(channel string, params HistoryParameters) (*History, error) {
+	return api.GetIMHistoryContext(context.Background(), channel, params)
+}
+
+// GetIMHistoryContext retrieves the direct message channel history with a custom context
+func (api *Client) GetIMHistoryContext(ctx context.Context, channel string, params HistoryParameters) (*History, error) {
 	values := url.Values{
 		"token":   {api.config.token},
 		"channel": {channel},
@@ -110,7 +132,7 @@ func (api *Client) GetIMHistory(channel string, params HistoryParameters) (*Hist
 			values.Add("unreads", "0")
 		}
 	}
-	response, err := imRequest("im.history", values, api.debug)
+	response, err := imRequest(ctx, "im.history", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -119,10 +141,15 @@ func (api *Client) GetIMHistory(channel string, params HistoryParameters) (*Hist
 
 // GetIMChannels returns the list of direct message channels
 func (api *Client) GetIMChannels() ([]IM, error) {
+	return api.GetIMChannelsContext(context.Background())
+}
+
+// GetIMChannelsContext returns the list of direct message channels with a custom context
+func (api *Client) GetIMChannelsContext(ctx context.Context) ([]IM, error) {
 	values := url.Values{
 		"token": {api.config.token},
 	}
-	response, err := imRequest("im.list", values, api.debug)
+	response, err := imRequest(ctx, "im.list", values, api.debug)
 	if err != nil {
 		return nil, err
 	}

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

@@ -2,10 +2,11 @@ package slack
 
 // OutgoingMessage is used for the realtime API, and seems incomplete.
 type OutgoingMessage struct {
-	ID      int    `json:"id"`
-	Channel string `json:"channel,omitempty"`
-	Text    string `json:"text,omitempty"`
-	Type    string `json:"type,omitempty"`
+	ID              int    `json:"id"`
+	Channel         string `json:"channel,omitempty"`
+	Text            string `json:"text,omitempty"`
+	Type            string `json:"type,omitempty"`
+	ThreadTimestamp string `json:"thread_ts,omitempty"`
 }
 
 // Message is an auxiliary type to allow us to have a message containing sub messages
@@ -17,15 +18,16 @@ type Message struct {
 // Msg contains information about a slack message
 type Msg struct {
 	// Basic Message
-	Type        string       `json:"type,omitempty"`
-	Channel     string       `json:"channel,omitempty"`
-	User        string       `json:"user,omitempty"`
-	Text        string       `json:"text,omitempty"`
-	Timestamp   string       `json:"ts,omitempty"`
-	IsStarred   bool         `json:"is_starred,omitempty"`
-	PinnedTo    []string     `json:"pinned_to, omitempty"`
-	Attachments []Attachment `json:"attachments,omitempty"`
-	Edited      *Edited      `json:"edited,omitempty"`
+	Type            string       `json:"type,omitempty"`
+	Channel         string       `json:"channel,omitempty"`
+	User            string       `json:"user,omitempty"`
+	Text            string       `json:"text,omitempty"`
+	Timestamp       string       `json:"ts,omitempty"`
+	ThreadTimestamp string       `json:"thread_ts,omitempty"`
+	IsStarred       bool         `json:"is_starred,omitempty"`
+	PinnedTo        []string     `json:"pinned_to, omitempty"`
+	Attachments     []Attachment `json:"attachments,omitempty"`
+	Edited          *Edited      `json:"edited,omitempty"`
 
 	// Message Subtypes
 	SubType string `json:"subtype,omitempty"`
@@ -56,6 +58,11 @@ type Msg struct {
 	// channel_archive, group_archive
 	Members []string `json:"members,omitempty"`
 
+	// channels.replies, groups.replies, im.replies, mpim.replies
+	ReplyCount   int     `json:"reply_count,omitempty"`
+	Replies      []Reply `json:"replies,omitempty"`
+	ParentUserId string  `json:"parent_user_id,omitempty"`
+
 	// file_share, file_comment, file_mention
 	File *File `json:"file,omitempty"`
 
@@ -88,6 +95,12 @@ type Edited struct {
 	Timestamp string `json:"ts,omitempty"`
 }
 
+// Reply contains information about a reply for a thread
+type Reply struct {
+	User      string `json:"user,omitempty"`
+	Timestamp string `json:"ts,omitempty"`
+}
+
 // Event contains the event type
 type Event struct {
 	Type string `json:"type,omitempty"`

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

@@ -2,8 +2,8 @@ package slack
 
 import (
 	"bytes"
+	"context"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -13,9 +13,22 @@ import (
 	"net/url"
 	"os"
 	"path/filepath"
+	"strings"
 	"time"
 )
 
+// HTTPRequester defines the minimal interface needed for an http.Client to be implemented.
+//
+// Use it in conjunction with the SetHTTPClient function to allow for other capabilities
+// like a tracing http.Client
+type HTTPRequester interface {
+	Do(*http.Request) (*http.Response, error)
+}
+
+var customHTTPClient HTTPRequester
+
+// HTTPClient sets a custom http.Client
+// deprecated: in favor of SetHTTPClient()
 var HTTPClient = &http.Client{}
 
 type WebResponse struct {
@@ -29,40 +42,24 @@ func (s WebError) Error() string {
 	return string(s)
 }
 
-func fileUploadReq(path, fpath string, values url.Values) (*http.Request, error) {
-	fullpath, err := filepath.Abs(fpath)
-	if err != nil {
-		return nil, err
-	}
-	file, err := os.Open(fullpath)
-	if err != nil {
-		return nil, err
-	}
-	defer file.Close()
-
+func fileUploadReq(ctx context.Context, path, fieldname, filename string, values url.Values, r io.Reader) (*http.Request, error) {
 	body := &bytes.Buffer{}
 	wr := multipart.NewWriter(body)
 
-	ioWriter, err := wr.CreateFormFile("file", filepath.Base(fullpath))
+	ioWriter, err := wr.CreateFormFile(fieldname, filename)
 	if err != nil {
 		wr.Close()
 		return nil, err
 	}
-	bytes, err := io.Copy(ioWriter, file)
+	_, err = io.Copy(ioWriter, r)
 	if err != nil {
 		wr.Close()
 		return nil, err
 	}
 	// Close the multipart writer or the footer won't be written
 	wr.Close()
-	stat, err := file.Stat()
-	if err != nil {
-		return nil, err
-	}
-	if bytes != stat.Size() {
-		return nil, errors.New("could not read the whole file")
-	}
 	req, err := http.NewRequest("POST", path, body)
+	req = req.WithContext(ctx)
 	if err != nil {
 		return nil, err
 	}
@@ -90,9 +87,26 @@ func parseResponseBody(body io.ReadCloser, intf *interface{}, debug bool) error
 	return nil
 }
 
-func postWithMultipartResponse(path string, filepath string, values url.Values, intf interface{}, debug bool) error {
-	req, err := fileUploadReq(SLACK_API+path, filepath, values)
-	resp, err := HTTPClient.Do(req)
+func postLocalWithMultipartResponse(ctx context.Context, path, fpath, fieldname string, values url.Values, intf interface{}, debug bool) error {
+	fullpath, err := filepath.Abs(fpath)
+	if err != nil {
+		return err
+	}
+	file, err := os.Open(fullpath)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+	return postWithMultipartResponse(ctx, path, filepath.Base(fpath), fieldname, values, file, intf, debug)
+}
+
+func postWithMultipartResponse(ctx context.Context, path, name, fieldname string, values url.Values, r io.Reader, intf interface{}, debug bool) error {
+	req, err := fileUploadReq(ctx, SLACK_API+path, fieldname, name, values, r)
+	if err != nil {
+		return err
+	}
+	req = req.WithContext(ctx)
+	resp, err := getHTTPClient().Do(req)
 	if err != nil {
 		return err
 	}
@@ -107,23 +121,37 @@ func postWithMultipartResponse(path string, filepath string, values url.Values,
 	return parseResponseBody(resp.Body, &intf, debug)
 }
 
-func postForm(endpoint string, values url.Values, intf interface{}, debug bool) error {
-	resp, err := HTTPClient.PostForm(endpoint, values)
+func postForm(ctx context.Context, endpoint string, values url.Values, intf interface{}, debug bool) error {
+	reqBody := strings.NewReader(values.Encode())
+	req, err := http.NewRequest("POST", endpoint, reqBody)
+	if err != nil {
+		return err
+	}
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+
+	req = req.WithContext(ctx)
+	resp, err := getHTTPClient().Do(req)
 	if err != nil {
 		return err
 	}
 	defer resp.Body.Close()
 
+	// Slack seems to send an HTML body along with 5xx error codes. Don't parse it.
+	if resp.StatusCode != 200 {
+		logResponse(resp, debug)
+		return fmt.Errorf("Slack server error: %s.", resp.Status)
+	}
+
 	return parseResponseBody(resp.Body, &intf, debug)
 }
 
-func post(path string, values url.Values, intf interface{}, debug bool) error {
-	return postForm(SLACK_API+path, values, intf, debug)
+func post(ctx context.Context, path string, values url.Values, intf interface{}, debug bool) error {
+	return postForm(ctx, SLACK_API+path, values, intf, debug)
 }
 
-func parseAdminResponse(method string, teamName string, values url.Values, intf interface{}, debug bool) error {
+func parseAdminResponse(ctx context.Context, method string, teamName string, values url.Values, intf interface{}, debug bool) error {
 	endpoint := fmt.Sprintf(SLACK_WEB_API_FORMAT, teamName, method, time.Now().Unix())
-	return postForm(endpoint, values, intf, debug)
+	return postForm(ctx, endpoint, values, intf, debug)
 }
 
 func logResponse(resp *http.Response, debug bool) error {
@@ -133,8 +161,23 @@ func logResponse(resp *http.Response, debug bool) error {
 			return err
 		}
 
-		logger.Print(text)
+		logger.Print(string(text))
 	}
 
 	return nil
 }
+
+func getHTTPClient() HTTPRequester {
+	if customHTTPClient != nil {
+		return customHTTPClient
+	}
+
+	return HTTPClient
+}
+
+// SetHTTPClient allows you to specify a custom http.Client
+// Use this instead of the package level HTTPClient variable if you want to use a custom client like the
+// Stackdriver Trace HTTPClient https://godoc.org/cloud.google.com/go/trace#HTTPClient
+func SetHTTPClient(client HTTPRequester) {
+	customHTTPClient = client
+}

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

@@ -1,6 +1,7 @@
 package slack
 
 import (
+	"context"
 	"errors"
 	"net/url"
 )
@@ -30,7 +31,12 @@ type OAuthResponse struct {
 
 // GetOAuthToken retrieves an AccessToken
 func GetOAuthToken(clientID, clientSecret, code, redirectURI string, debug bool) (accessToken string, scope string, err error) {
-	response, err := GetOAuthResponse(clientID, clientSecret, code, redirectURI, debug)
+	return GetOAuthTokenContext(context.Background(), clientID, clientSecret, code, redirectURI, debug)
+}
+
+// GetOAuthTokenContext retrieves an AccessToken with a custom context
+func GetOAuthTokenContext(ctx context.Context, clientID, clientSecret, code, redirectURI string, debug bool) (accessToken string, scope string, err error) {
+	response, err := GetOAuthResponseContext(ctx, clientID, clientSecret, code, redirectURI, debug)
 	if err != nil {
 		return "", "", err
 	}
@@ -38,6 +44,10 @@ func GetOAuthToken(clientID, clientSecret, code, redirectURI string, debug bool)
 }
 
 func GetOAuthResponse(clientID, clientSecret, code, redirectURI string, debug bool) (resp *OAuthResponse, err error) {
+	return GetOAuthResponseContext(context.Background(), clientID, clientSecret, code, redirectURI, debug)
+}
+
+func GetOAuthResponseContext(ctx context.Context, clientID, clientSecret, code, redirectURI string, debug bool) (resp *OAuthResponse, err error) {
 	values := url.Values{
 		"client_id":     {clientID},
 		"client_secret": {clientSecret},
@@ -45,7 +55,7 @@ func GetOAuthResponse(clientID, clientSecret, code, redirectURI string, debug bo
 		"redirect_uri":  {redirectURI},
 	}
 	response := &OAuthResponse{}
-	err = post("oauth.access", values, response, debug)
+	err = post(ctx, "oauth.access", values, response, debug)
 	if err != nil {
 		return nil, err
 	}

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

@@ -1,6 +1,7 @@
 package slack
 
 import (
+	"context"
 	"errors"
 	"net/url"
 )
@@ -13,6 +14,11 @@ type listPinsResponseFull struct {
 
 // AddPin pins an item in a channel
 func (api *Client) AddPin(channel string, item ItemRef) error {
+	return api.AddPinContext(context.Background(), channel, item)
+}
+
+// AddPinContext pins an item in a channel with a custom context
+func (api *Client) AddPinContext(ctx context.Context, channel string, item ItemRef) error {
 	values := url.Values{
 		"channel": {channel},
 		"token":   {api.config.token},
@@ -27,7 +33,7 @@ func (api *Client) AddPin(channel string, item ItemRef) error {
 		values.Set("file_comment", string(item.Comment))
 	}
 	response := &SlackResponse{}
-	if err := post("pins.add", values, response, api.debug); err != nil {
+	if err := post(ctx, "pins.add", values, response, api.debug); err != nil {
 		return err
 	}
 	if !response.Ok {
@@ -38,6 +44,11 @@ func (api *Client) AddPin(channel string, item ItemRef) error {
 
 // RemovePin un-pins an item from a channel
 func (api *Client) RemovePin(channel string, item ItemRef) error {
+	return api.RemovePinContext(context.Background(), channel, item)
+}
+
+// RemovePinContext un-pins an item from a channel with a custom context
+func (api *Client) RemovePinContext(ctx context.Context, channel string, item ItemRef) error {
 	values := url.Values{
 		"channel": {channel},
 		"token":   {api.config.token},
@@ -52,7 +63,7 @@ func (api *Client) RemovePin(channel string, item ItemRef) error {
 		values.Set("file_comment", string(item.Comment))
 	}
 	response := &SlackResponse{}
-	if err := post("pins.remove", values, response, api.debug); err != nil {
+	if err := post(ctx, "pins.remove", values, response, api.debug); err != nil {
 		return err
 	}
 	if !response.Ok {
@@ -63,12 +74,17 @@ func (api *Client) RemovePin(channel string, item ItemRef) error {
 
 // ListPins returns information about the items a user reacted to.
 func (api *Client) ListPins(channel string) ([]Item, *Paging, error) {
+	return api.ListPinsContext(context.Background(), channel)
+}
+
+// ListPinsContext returns information about the items a user reacted to with a custom context.
+func (api *Client) ListPinsContext(ctx context.Context, channel string) ([]Item, *Paging, error) {
 	values := url.Values{
 		"channel": {channel},
 		"token":   {api.config.token},
 	}
 	response := &listPinsResponseFull{}
-	err := post("pins.list", values, response, api.debug)
+	err := post(ctx, "pins.list", values, response, api.debug)
 	if err != nil {
 		return nil, nil, err
 	}

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

@@ -1,6 +1,7 @@
 package slack
 
 import (
+	"context"
 	"errors"
 	"net/url"
 	"strconv"
@@ -129,6 +130,11 @@ func (res listReactionsResponseFull) extractReactedItems() []ReactedItem {
 
 // AddReaction adds a reaction emoji to a message, file or file comment.
 func (api *Client) AddReaction(name string, item ItemRef) error {
+	return api.AddReactionContext(context.Background(), name, item)
+}
+
+// AddReactionContext adds a reaction emoji to a message, file or file comment with a custom context.
+func (api *Client) AddReactionContext(ctx context.Context, name string, item ItemRef) error {
 	values := url.Values{
 		"token": {api.config.token},
 	}
@@ -148,7 +154,7 @@ func (api *Client) AddReaction(name string, item ItemRef) error {
 		values.Set("file_comment", string(item.Comment))
 	}
 	response := &SlackResponse{}
-	if err := post("reactions.add", values, response, api.debug); err != nil {
+	if err := post(ctx, "reactions.add", values, response, api.debug); err != nil {
 		return err
 	}
 	if !response.Ok {
@@ -159,6 +165,11 @@ func (api *Client) AddReaction(name string, item ItemRef) error {
 
 // RemoveReaction removes a reaction emoji from a message, file or file comment.
 func (api *Client) RemoveReaction(name string, item ItemRef) error {
+	return api.RemoveReactionContext(context.Background(), name, item)
+}
+
+// RemoveReactionContext removes a reaction emoji from a message, file or file comment with a custom context.
+func (api *Client) RemoveReactionContext(ctx context.Context, name string, item ItemRef) error {
 	values := url.Values{
 		"token": {api.config.token},
 	}
@@ -178,7 +189,7 @@ func (api *Client) RemoveReaction(name string, item ItemRef) error {
 		values.Set("file_comment", string(item.Comment))
 	}
 	response := &SlackResponse{}
-	if err := post("reactions.remove", values, response, api.debug); err != nil {
+	if err := post(ctx, "reactions.remove", values, response, api.debug); err != nil {
 		return err
 	}
 	if !response.Ok {
@@ -189,6 +200,11 @@ func (api *Client) RemoveReaction(name string, item ItemRef) error {
 
 // GetReactions returns details about the reactions on an item.
 func (api *Client) GetReactions(item ItemRef, params GetReactionsParameters) ([]ItemReaction, error) {
+	return api.GetReactionsContext(context.Background(), item, params)
+}
+
+// GetReactionsContext returns details about the reactions on an item with a custom context
+func (api *Client) GetReactionsContext(ctx context.Context, item ItemRef, params GetReactionsParameters) ([]ItemReaction, error) {
 	values := url.Values{
 		"token": {api.config.token},
 	}
@@ -208,7 +224,7 @@ func (api *Client) GetReactions(item ItemRef, params GetReactionsParameters) ([]
 		values.Set("full", strconv.FormatBool(params.Full))
 	}
 	response := &getReactionsResponseFull{}
-	if err := post("reactions.get", values, response, api.debug); err != nil {
+	if err := post(ctx, "reactions.get", values, response, api.debug); err != nil {
 		return nil, err
 	}
 	if !response.Ok {
@@ -219,6 +235,11 @@ func (api *Client) GetReactions(item ItemRef, params GetReactionsParameters) ([]
 
 // ListReactions returns information about the items a user reacted to.
 func (api *Client) ListReactions(params ListReactionsParameters) ([]ReactedItem, *Paging, error) {
+	return api.ListReactionsContext(context.Background(), params)
+}
+
+// ListReactionsContext returns information about the items a user reacted to with a custom context.
+func (api *Client) ListReactionsContext(ctx context.Context, params ListReactionsParameters) ([]ReactedItem, *Paging, error) {
 	values := url.Values{
 		"token": {api.config.token},
 	}
@@ -235,7 +256,7 @@ func (api *Client) ListReactions(params ListReactionsParameters) ([]ReactedItem,
 		values.Add("full", strconv.FormatBool(params.Full))
 	}
 	response := &listReactionsResponseFull{}
-	err := post("reactions.list", values, response, api.debug)
+	err := post(ctx, "reactions.list", values, response, api.debug)
 	if err != nil {
 		return nil, nil, err
 	}

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

@@ -1,18 +1,58 @@
 package slack
 
 import (
+	"context"
+	"encoding/json"
 	"fmt"
 	"net/url"
+	"time"
 )
 
-// StartRTM calls the "rtm.start" endpoint and returns the provided URL and the full Info
-// block.
+// StartRTM calls the "rtm.start" endpoint and returns the provided URL and the full Info block.
 //
-// To have a fully managed Websocket connection, use `NewRTM`, and call `ManageConnection()`
-// on it.
+// To have a fully managed Websocket connection, use `NewRTM`, and call `ManageConnection()` on it.
 func (api *Client) StartRTM() (info *Info, websocketURL string, err error) {
+	return api.StartRTMContext(context.Background())
+}
+
+// StartRTMContext calls the "rtm.start" endpoint and returns the provided URL and the full Info block with a custom context.
+//
+// To have a fully managed Websocket connection, use `NewRTM`, and call `ManageConnection()` on it.
+func (api *Client) StartRTMContext(ctx context.Context) (info *Info, websocketURL string, err error) {
 	response := &infoResponseFull{}
-	err = post("rtm.start", url.Values{"token": {api.config.token}}, response, api.debug)
+	err = post(ctx, "rtm.start", url.Values{"token": {api.config.token}}, response, api.debug)
+	if err != nil {
+		return nil, "", fmt.Errorf("post: %s", err)
+	}
+	if !response.Ok {
+		return nil, "", response.Error
+	}
+
+	// websocket.Dial does not accept url without the port (yet)
+	// Fixed by: https://github.com/golang/net/commit/5058c78c3627b31e484a81463acd51c7cecc06f3
+	// but slack returns the address with no port, so we have to fix it
+	api.Debugln("Using URL:", response.Info.URL)
+	websocketURL, err = websocketizeURLPort(response.Info.URL)
+	if err != nil {
+		return nil, "", fmt.Errorf("parsing response URL: %s", err)
+	}
+
+	return &response.Info, websocketURL, nil
+}
+
+// ConnectRTM calls the "rtm.connect" endpoint and returns the provided URL and the compact Info block.
+//
+// To have a fully managed Websocket connection, use `NewRTM`, and call `ManageConnection()` on it.
+func (api *Client) ConnectRTM() (info *Info, websocketURL string, err error) {
+	return api.ConnectRTMContext(context.Background())
+}
+
+// ConnectRTM calls the "rtm.connect" endpoint and returns the provided URL and the compact Info block with a custom context.
+//
+// To have a fully managed Websocket connection, use `NewRTM`, and call `ManageConnection()` on it.
+func (api *Client) ConnectRTMContext(ctx context.Context) (info *Info, websocketURL string, err error) {
+	response := &infoResponseFull{}
+	err = post(ctx, "rtm.connect", url.Values{"token": {api.config.token}}, response, api.debug)
 	if err != nil {
 		return nil, "", fmt.Errorf("post: %s", err)
 	}
@@ -33,7 +73,33 @@ func (api *Client) StartRTM() (info *Info, websocketURL string, err error) {
 }
 
 // NewRTM returns a RTM, which provides a fully managed connection to
-// Slack's websocket-based Real-Time Messaging protocol./
+// Slack's websocket-based Real-Time Messaging protocol.
 func (api *Client) NewRTM() *RTM {
-	return newRTM(api)
+	return api.NewRTMWithOptions(nil)
+}
+
+// NewRTMWithOptions returns a RTM, which provides a fully managed connection to
+// Slack's websocket-based Real-Time Messaging protocol.
+// This also allows to configure various options available for RTM API.
+func (api *Client) NewRTMWithOptions(options *RTMOptions) *RTM {
+	result := &RTM{
+		Client:           *api,
+		IncomingEvents:   make(chan RTMEvent, 50),
+		outgoingMessages: make(chan OutgoingMessage, 20),
+		pings:            make(map[int]time.Time),
+		isConnected:      false,
+		wasIntentional:   true,
+		killChannel:      make(chan bool),
+		forcePing:        make(chan bool),
+		rawEvents:        make(chan json.RawMessage),
+		idGen:            NewSafeID(1),
+	}
+
+	if options != nil {
+		result.useRTMStart = options.UseRTMStart
+	} else {
+		result.useRTMStart = true
+	}
+
+	return result
 }

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

@@ -1,6 +1,7 @@
 package slack
 
 import (
+	"context"
 	"errors"
 	"net/url"
 	"strconv"
@@ -80,7 +81,7 @@ func NewSearchParameters() SearchParameters {
 	}
 }
 
-func (api *Client) _search(path, query string, params SearchParameters, files, messages bool) (response *searchResponseFull, error error) {
+func (api *Client) _search(ctx context.Context, path, query string, params SearchParameters, files, messages bool) (response *searchResponseFull, error error) {
 	values := url.Values{
 		"token": {api.config.token},
 		"query": {query},
@@ -101,7 +102,7 @@ func (api *Client) _search(path, query string, params SearchParameters, files, m
 		values.Add("page", strconv.Itoa(params.Page))
 	}
 	response = &searchResponseFull{}
-	err := post(path, values, response, api.debug)
+	err := post(ctx, path, values, response, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -113,7 +114,11 @@ func (api *Client) _search(path, query string, params SearchParameters, files, m
 }
 
 func (api *Client) Search(query string, params SearchParameters) (*SearchMessages, *SearchFiles, error) {
-	response, err := api._search("search.all", query, params, true, true)
+	return api.SearchContext(context.Background(), query, params)
+}
+
+func (api *Client) SearchContext(ctx context.Context, query string, params SearchParameters) (*SearchMessages, *SearchFiles, error) {
+	response, err := api._search(ctx, "search.all", query, params, true, true)
 	if err != nil {
 		return nil, nil, err
 	}
@@ -121,7 +126,11 @@ func (api *Client) Search(query string, params SearchParameters) (*SearchMessage
 }
 
 func (api *Client) SearchFiles(query string, params SearchParameters) (*SearchFiles, error) {
-	response, err := api._search("search.files", query, params, true, false)
+	return api.SearchFilesContext(context.Background(), query, params)
+}
+
+func (api *Client) SearchFilesContext(ctx context.Context, query string, params SearchParameters) (*SearchFiles, error) {
+	response, err := api._search(ctx, "search.files", query, params, true, false)
 	if err != nil {
 		return nil, err
 	}
@@ -129,7 +138,11 @@ func (api *Client) SearchFiles(query string, params SearchParameters) (*SearchFi
 }
 
 func (api *Client) SearchMessages(query string, params SearchParameters) (*SearchMessages, error) {
-	response, err := api._search("search.messages", query, params, false, true)
+	return api.SearchMessagesContext(context.Background(), query, params)
+}
+
+func (api *Client) SearchMessagesContext(ctx context.Context, query string, params SearchParameters) (*SearchMessages, error) {
+	response, err := api._search(ctx, "search.messages", query, params, false, true)
 	if err != nil {
 		return nil, err
 	}

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

@@ -1,6 +1,7 @@
 package slack
 
 import (
+	"context"
 	"errors"
 	"log"
 	"net/url"
@@ -54,8 +55,13 @@ func New(token string) *Client {
 
 // AuthTest tests if the user is able to do authenticated requests or not
 func (api *Client) AuthTest() (response *AuthTestResponse, error error) {
+	return api.AuthTestContext(context.Background())
+}
+
+// AuthTestContext tests if the user is able to do authenticated requests or not with a custom context
+func (api *Client) AuthTestContext(ctx context.Context) (response *AuthTestResponse, error error) {
 	responseFull := &authTestResponseFull{}
-	err := post("auth.test", url.Values{"token": {api.config.token}}, responseFull, api.debug)
+	err := post(ctx, "auth.test", url.Values{"token": {api.config.token}}, responseFull, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -71,7 +77,7 @@ func (api *Client) AuthTest() (response *AuthTestResponse, error error) {
 func (api *Client) SetDebug(debug bool) {
 	api.debug = debug
 	if debug && logger == nil {
-		logger = log.New(os.Stdout, "nlopes/slack", log.LstdFlags | log.Lshortfile)
+		logger = log.New(os.Stdout, "nlopes/slack", log.LstdFlags|log.Lshortfile)
 	}
 }
 

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

@@ -1,6 +1,7 @@
 package slack
 
 import (
+	"context"
 	"errors"
 	"net/url"
 	"strconv"
@@ -37,6 +38,11 @@ func NewStarsParameters() StarsParameters {
 
 // AddStar stars an item in a channel
 func (api *Client) AddStar(channel string, item ItemRef) error {
+	return api.AddStarContext(context.Background(), channel, item)
+}
+
+// AddStarContext stars an item in a channel with a custom context
+func (api *Client) AddStarContext(ctx context.Context, channel string, item ItemRef) error {
 	values := url.Values{
 		"channel": {channel},
 		"token":   {api.config.token},
@@ -51,7 +57,7 @@ func (api *Client) AddStar(channel string, item ItemRef) error {
 		values.Set("file_comment", string(item.Comment))
 	}
 	response := &SlackResponse{}
-	if err := post("stars.add", values, response, api.debug); err != nil {
+	if err := post(ctx, "stars.add", values, response, api.debug); err != nil {
 		return err
 	}
 	if !response.Ok {
@@ -62,6 +68,11 @@ func (api *Client) AddStar(channel string, item ItemRef) error {
 
 // RemoveStar removes a starred item from a channel
 func (api *Client) RemoveStar(channel string, item ItemRef) error {
+	return api.RemoveStarContext(context.Background(), channel, item)
+}
+
+// RemoveStarContext removes a starred item from a channel with a custom context
+func (api *Client) RemoveStarContext(ctx context.Context, channel string, item ItemRef) error {
 	values := url.Values{
 		"channel": {channel},
 		"token":   {api.config.token},
@@ -76,7 +87,7 @@ func (api *Client) RemoveStar(channel string, item ItemRef) error {
 		values.Set("file_comment", string(item.Comment))
 	}
 	response := &SlackResponse{}
-	if err := post("stars.remove", values, response, api.debug); err != nil {
+	if err := post(ctx, "stars.remove", values, response, api.debug); err != nil {
 		return err
 	}
 	if !response.Ok {
@@ -87,6 +98,11 @@ func (api *Client) RemoveStar(channel string, item ItemRef) error {
 
 // ListStars returns information about the stars a user added
 func (api *Client) ListStars(params StarsParameters) ([]Item, *Paging, error) {
+	return api.ListStarsContext(context.Background(), params)
+}
+
+// ListStarsContext returns information about the stars a user added with a custom context
+func (api *Client) ListStarsContext(ctx context.Context, params StarsParameters) ([]Item, *Paging, error) {
 	values := url.Values{
 		"token": {api.config.token},
 	}
@@ -100,7 +116,7 @@ func (api *Client) ListStars(params StarsParameters) ([]Item, *Paging, error) {
 		values.Add("page", strconv.Itoa(params.Page))
 	}
 	response := &listResponseFull{}
-	err := post("stars.list", values, response, api.debug)
+	err := post(ctx, "stars.list", values, response, api.debug)
 	if err != nil {
 		return nil, nil, err
 	}
@@ -110,7 +126,9 @@ func (api *Client) ListStars(params StarsParameters) ([]Item, *Paging, error) {
 	return response.Items, &response.Paging, nil
 }
 
-// GetStarred returns a list of StarredItem items. The user then has to iterate over them and figure out what they should
+// GetStarred returns a list of StarredItem items.
+//
+// The user then has to iterate over them and figure out what they should
 // be looking at according to what is in the Type.
 //    for _, item := range items {
 //        switch c.Type {
@@ -123,7 +141,14 @@ func (api *Client) ListStars(params StarsParameters) ([]Item, *Paging, error) {
 // This function still exists to maintain backwards compatibility.
 // I exposed it as returning []StarredItem, so it shall stay as StarredItem
 func (api *Client) GetStarred(params StarsParameters) ([]StarredItem, *Paging, error) {
-	items, paging, err := api.ListStars(params)
+	return api.GetStarredContext(context.Background(), params)
+}
+
+// GetStarredContext returns a list of StarredItem items with a custom context
+//
+// For more details see GetStarred
+func (api *Client) GetStarredContext(ctx context.Context, params StarsParameters) ([]StarredItem, *Paging, error) {
+	items, paging, err := api.ListStarsContext(ctx, params)
 	if err != nil {
 		return nil, nil, err
 	}

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

@@ -1,14 +1,15 @@
 package slack
 
 import (
+	"context"
 	"errors"
 	"net/url"
 	"strconv"
 )
 
 const (
-	DEFAULT_LOGINS_COUNT   = 100
-	DEFAULT_LOGINS_PAGE    = 1
+	DEFAULT_LOGINS_COUNT = 100
+	DEFAULT_LOGINS_PAGE  = 1
 )
 
 type TeamResponse struct {
@@ -26,11 +27,10 @@ type TeamInfo struct {
 
 type LoginResponse struct {
 	Logins []Login `json:"logins"`
-	Paging         `json:"paging"`
+	Paging `json:"paging"`
 	SlackResponse
 }
 
-
 type Login struct {
 	UserID    string `json:"user_id"`
 	Username  string `json:"username"`
@@ -47,7 +47,6 @@ type Login struct {
 type BillableInfoResponse struct {
 	BillableInfo map[string]BillingActive `json:"billable_info"`
 	SlackResponse
-
 }
 
 type BillingActive struct {
@@ -56,8 +55,8 @@ type BillingActive struct {
 
 // AccessLogParameters contains all the parameters necessary (including the optional ones) for a GetAccessLogs() request
 type AccessLogParameters struct {
-	Count         int
-	Page          int
+	Count int
+	Page  int
 }
 
 // NewAccessLogParameters provides an instance of AccessLogParameters with all the sane default values set
@@ -68,10 +67,9 @@ func NewAccessLogParameters() AccessLogParameters {
 	}
 }
 
-
-func teamRequest(path string, values url.Values, debug bool) (*TeamResponse, error) {
+func teamRequest(ctx context.Context, path string, values url.Values, debug bool) (*TeamResponse, error) {
 	response := &TeamResponse{}
-	err := post(path, values, response, debug)
+	err := post(ctx, path, values, response, debug)
 	if err != nil {
 		return nil, err
 	}
@@ -83,9 +81,9 @@ func teamRequest(path string, values url.Values, debug bool) (*TeamResponse, err
 	return response, nil
 }
 
-func billableInfoRequest(path string, values url.Values, debug bool) (map[string]BillingActive, error) {
+func billableInfoRequest(ctx context.Context, path string, values url.Values, debug bool) (map[string]BillingActive, error) {
 	response := &BillableInfoResponse{}
-	err := post(path, values, response, debug)
+	err := post(ctx, path, values, response, debug)
 	if err != nil {
 		return nil, err
 	}
@@ -97,9 +95,9 @@ func billableInfoRequest(path string, values url.Values, debug bool) (map[string
 	return response.BillableInfo, nil
 }
 
-func accessLogsRequest(path string, values url.Values, debug bool) (*LoginResponse, error) {
+func accessLogsRequest(ctx context.Context, path string, values url.Values, debug bool) (*LoginResponse, error) {
 	response := &LoginResponse{}
-	err := post(path, values, response, debug)
+	err := post(ctx, path, values, response, debug)
 	if err != nil {
 		return nil, err
 	}
@@ -109,14 +107,18 @@ func accessLogsRequest(path string, values url.Values, debug bool) (*LoginRespon
 	return response, nil
 }
 
-
 // GetTeamInfo gets the Team Information of the user
 func (api *Client) GetTeamInfo() (*TeamInfo, error) {
+	return api.GetTeamInfoContext(context.Background())
+}
+
+// GetTeamInfoContext gets the Team Information of the user with a custom context
+func (api *Client) GetTeamInfoContext(ctx context.Context) (*TeamInfo, error) {
 	values := url.Values{
 		"token": {api.config.token},
 	}
 
-	response, err := teamRequest("team.info", values, api.debug)
+	response, err := teamRequest(ctx, "team.info", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -125,6 +127,11 @@ func (api *Client) GetTeamInfo() (*TeamInfo, error) {
 
 // GetAccessLogs retrieves a page of logins according to the parameters given
 func (api *Client) GetAccessLogs(params AccessLogParameters) ([]Login, *Paging, error) {
+	return api.GetAccessLogsContext(context.Background(), params)
+}
+
+// GetAccessLogsContext retrieves a page of logins according to the parameters given with a custom context
+func (api *Client) GetAccessLogsContext(ctx context.Context, params AccessLogParameters) ([]Login, *Paging, error) {
 	values := url.Values{
 		"token": {api.config.token},
 	}
@@ -134,7 +141,7 @@ func (api *Client) GetAccessLogs(params AccessLogParameters) ([]Login, *Paging,
 	if params.Page != DEFAULT_LOGINS_PAGE {
 		values.Add("page", strconv.Itoa(params.Page))
 	}
-	response, err := accessLogsRequest("team.accessLogs", values, api.debug)
+	response, err := accessLogsRequest(ctx, "team.accessLogs", values, api.debug)
 	if err != nil {
 		return nil, nil, err
 	}
@@ -142,19 +149,28 @@ func (api *Client) GetAccessLogs(params AccessLogParameters) ([]Login, *Paging,
 }
 
 func (api *Client) GetBillableInfo(user string) (map[string]BillingActive, error) {
+	return api.GetBillableInfoContext(context.Background(), user)
+}
+
+func (api *Client) GetBillableInfoContext(ctx context.Context, user string) (map[string]BillingActive, error) {
 	values := url.Values{
 		"token": {api.config.token},
-		"user": {user},
+		"user":  {user},
 	}
 
-	return billableInfoRequest("team.billableInfo", values, api.debug)
+	return billableInfoRequest(ctx, "team.billableInfo", values, api.debug)
 }
 
 // GetBillableInfoForTeam returns the billing_active status of all users on the team.
 func (api *Client) GetBillableInfoForTeam() (map[string]BillingActive, error) {
+	return api.GetBillableInfoForTeamContext(context.Background())
+}
+
+// GetBillableInfoForTeamContext returns the billing_active status of all users on the team with a custom context
+func (api *Client) GetBillableInfoForTeamContext(ctx context.Context) (map[string]BillingActive, error) {
 	values := url.Values{
 		"token": {api.config.token},
 	}
 
-	return billableInfoRequest("team.billableInfo", values, api.debug)
+	return billableInfoRequest(ctx, "team.billableInfo", values, api.debug)
 }

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

@@ -0,0 +1,210 @@
+package slack
+
+import (
+	"context"
+	"errors"
+	"net/url"
+	"strings"
+)
+
+// UserGroup contains all the information of a user group
+type UserGroup struct {
+	ID          string         `json:"id"`
+	TeamID      string         `json:"team_id"`
+	IsUserGroup bool           `json:"is_usergroup"`
+	Name        string         `json:"name"`
+	Description string         `json:"description"`
+	Handle      string         `json:"handle"`
+	IsExternal  bool           `json:"is_external"`
+	DateCreate  JSONTime       `json:"date_create"`
+	DateUpdate  JSONTime       `json:"date_update"`
+	DateDelete  JSONTime       `json:"date_delete"`
+	AutoType    string         `json:"auto_type"`
+	CreatedBy   string         `json:"created_by"`
+	UpdatedBy   string         `json:"updated_by"`
+	DeletedBy   string         `json:"deleted_by"`
+	Prefs       UserGroupPrefs `json:"prefs"`
+	UserCount   int            `json:"user_count"`
+}
+
+// UserGroupPrefs contains default channels and groups (private channels)
+type UserGroupPrefs struct {
+	Channels []string `json:"channels"`
+	Groups   []string `json:"groups"`
+}
+
+type userGroupResponseFull struct {
+	UserGroups []UserGroup `json:"usergroups"`
+	UserGroup  UserGroup   `json:"usergroup"`
+	Users      []string    `json:"users"`
+	SlackResponse
+}
+
+func userGroupRequest(ctx context.Context, path string, values url.Values, debug bool) (*userGroupResponseFull, error) {
+	response := &userGroupResponseFull{}
+	err := post(ctx, path, values, response, debug)
+	if err != nil {
+		return nil, err
+	}
+	if !response.Ok {
+		return nil, errors.New(response.Error)
+	}
+	return response, nil
+}
+
+// CreateUserGroup creates a new user group
+func (api *Client) CreateUserGroup(userGroup UserGroup) (UserGroup, error) {
+	return api.CreateUserGroupContext(context.Background(), userGroup)
+}
+
+// CreateUserGroupContext creates a new user group with a custom context
+func (api *Client) CreateUserGroupContext(ctx context.Context, userGroup UserGroup) (UserGroup, error) {
+	values := url.Values{
+		"token": {api.config.token},
+		"name":  {userGroup.Name},
+	}
+
+	if userGroup.Handle != "" {
+		values["handle"] = []string{userGroup.Handle}
+	}
+
+	if userGroup.Description != "" {
+		values["description"] = []string{userGroup.Description}
+	}
+
+	if len(userGroup.Prefs.Channels) > 0 {
+		values["channels"] = []string{strings.Join(userGroup.Prefs.Channels, ",")}
+	}
+
+	response, err := userGroupRequest(ctx, "usergroups.create", values, api.debug)
+	if err != nil {
+		return UserGroup{}, err
+	}
+	return response.UserGroup, nil
+}
+
+// DisableUserGroup disables an existing user group
+func (api *Client) DisableUserGroup(userGroup string) (UserGroup, error) {
+	return api.DisableUserGroupContext(context.Background(), userGroup)
+}
+
+// DisableUserGroupContext disables an existing user group with a custom context
+func (api *Client) DisableUserGroupContext(ctx context.Context, userGroup string) (UserGroup, error) {
+	values := url.Values{
+		"token":     {api.config.token},
+		"usergroup": {userGroup},
+	}
+
+	response, err := userGroupRequest(ctx, "usergroups.disable", values, api.debug)
+	if err != nil {
+		return UserGroup{}, err
+	}
+	return response.UserGroup, nil
+}
+
+// EnableUserGroup enables an existing user group
+func (api *Client) EnableUserGroup(userGroup string) (UserGroup, error) {
+	return api.EnableUserGroupContext(context.Background(), userGroup)
+}
+
+// EnableUserGroupContext enables an existing user group with a custom context
+func (api *Client) EnableUserGroupContext(ctx context.Context, userGroup string) (UserGroup, error) {
+	values := url.Values{
+		"token":     {api.config.token},
+		"usergroup": {userGroup},
+	}
+
+	response, err := userGroupRequest(ctx, "usergroups.enable", values, api.debug)
+	if err != nil {
+		return UserGroup{}, err
+	}
+	return response.UserGroup, nil
+}
+
+// GetUserGroups returns a list of user groups for the team
+func (api *Client) GetUserGroups() ([]UserGroup, error) {
+	return api.GetUserGroupsContext(context.Background())
+}
+
+// GetUserGroupsContext returns a list of user groups for the team with a custom context
+func (api *Client) GetUserGroupsContext(ctx context.Context) ([]UserGroup, error) {
+	values := url.Values{
+		"token": {api.config.token},
+	}
+
+	response, err := userGroupRequest(ctx, "usergroups.list", values, api.debug)
+	if err != nil {
+		return nil, err
+	}
+	return response.UserGroups, nil
+}
+
+// UpdateUserGroup will update an existing user group
+func (api *Client) UpdateUserGroup(userGroup UserGroup) (UserGroup, error) {
+	return api.UpdateUserGroupContext(context.Background(), userGroup)
+}
+
+// UpdateUserGroupContext will update an existing user group with a custom context
+func (api *Client) UpdateUserGroupContext(ctx context.Context, userGroup UserGroup) (UserGroup, error) {
+	values := url.Values{
+		"token":     {api.config.token},
+		"usergroup": {userGroup.ID},
+	}
+
+	if userGroup.Name != "" {
+		values["name"] = []string{userGroup.Name}
+	}
+
+	if userGroup.Handle != "" {
+		values["handle"] = []string{userGroup.Handle}
+	}
+
+	if userGroup.Description != "" {
+		values["description"] = []string{userGroup.Description}
+	}
+
+	response, err := userGroupRequest(ctx, "usergroups.update", values, api.debug)
+	if err != nil {
+		return UserGroup{}, err
+	}
+	return response.UserGroup, nil
+}
+
+// GetUserGroupMembers will retrieve the current list of users in a group
+func (api *Client) GetUserGroupMembers(userGroup string) ([]string, error) {
+	return api.GetUserGroupMembersContext(context.Background(), userGroup)
+}
+
+// GetUserGroupMembersContext will retrieve the current list of users in a group with a custom context
+func (api *Client) GetUserGroupMembersContext(ctx context.Context, userGroup string) ([]string, error) {
+	values := url.Values{
+		"token":     {api.config.token},
+		"usergroup": {userGroup},
+	}
+
+	response, err := userGroupRequest(ctx, "usergroups.users.list", values, api.debug)
+	if err != nil {
+		return []string{}, err
+	}
+	return response.Users, nil
+}
+
+// UpdateUserGroupMembers will update the members of an existing user group
+func (api *Client) UpdateUserGroupMembers(userGroup string, members string) (UserGroup, error) {
+	return api.UpdateUserGroupMembersContext(context.Background(), userGroup, members)
+}
+
+// UpdateUserGroupMembersContext will update the members of an existing user group with a custom context
+func (api *Client) UpdateUserGroupMembersContext(ctx context.Context, userGroup string, members string) (UserGroup, error) {
+	values := url.Values{
+		"token":     {api.config.token},
+		"usergroup": {userGroup},
+		"users":     {members},
+	}
+
+	response, err := userGroupRequest(ctx, "usergroups.users.update", values, api.debug)
+	if err != nil {
+		return UserGroup{}, err
+	}
+	return response.UserGroup, nil
+}

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

@@ -1,10 +1,18 @@
 package slack
 
 import (
+	"context"
+	"encoding/json"
 	"errors"
 	"net/url"
 )
 
+const (
+	DEFAULT_USER_PHOTO_CROP_X = -1
+	DEFAULT_USER_PHOTO_CROP_Y = -1
+	DEFAULT_USER_PHOTO_CROP_W = -1
+)
+
 // UserProfile contains all the information details of a given user
 type UserProfile struct {
 	FirstName          string `json:"first_name"`
@@ -23,6 +31,8 @@ type UserProfile struct {
 	Title              string `json:"title"`
 	BotID              string `json:"bot_id,omitempty"`
 	ApiAppID           string `json:"api_app_id,omitempty"`
+	StatusText         string `json:"status_text,omitempty"`
+	StatusEmoji        string `json:"status_emoji,omitempty"`
 }
 
 // User contains all the information of a user
@@ -97,9 +107,23 @@ type userResponseFull struct {
 	SlackResponse
 }
 
-func userRequest(path string, values url.Values, debug bool) (*userResponseFull, error) {
+type UserSetPhotoParams struct {
+	CropX int
+	CropY int
+	CropW int
+}
+
+func NewUserSetPhotoParams() UserSetPhotoParams {
+	return UserSetPhotoParams{
+		CropX: DEFAULT_USER_PHOTO_CROP_X,
+		CropY: DEFAULT_USER_PHOTO_CROP_Y,
+		CropW: DEFAULT_USER_PHOTO_CROP_W,
+	}
+}
+
+func userRequest(ctx context.Context, path string, values url.Values, debug bool) (*userResponseFull, error) {
 	response := &userResponseFull{}
-	err := post(path, values, response, debug)
+	err := post(ctx, path, values, response, debug)
 	if err != nil {
 		return nil, err
 	}
@@ -111,11 +135,16 @@ func userRequest(path string, values url.Values, debug bool) (*userResponseFull,
 
 // GetUserPresence will retrieve the current presence status of given user.
 func (api *Client) GetUserPresence(user string) (*UserPresence, error) {
+	return api.GetUserPresenceContext(context.Background(), user)
+}
+
+// GetUserPresenceContext will retrieve the current presence status of given user with a custom context.
+func (api *Client) GetUserPresenceContext(ctx context.Context, user string) (*UserPresence, error) {
 	values := url.Values{
 		"token": {api.config.token},
 		"user":  {user},
 	}
-	response, err := userRequest("users.getPresence", values, api.debug)
+	response, err := userRequest(ctx, "users.getPresence", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -124,11 +153,16 @@ func (api *Client) GetUserPresence(user string) (*UserPresence, error) {
 
 // GetUserInfo will retrieve the complete user information
 func (api *Client) GetUserInfo(user string) (*User, error) {
+	return api.GetUserInfoContext(context.Background(), user)
+}
+
+// GetUserInfoContext will retrieve the complete user information with a custom context
+func (api *Client) GetUserInfoContext(ctx context.Context, user string) (*User, error) {
 	values := url.Values{
 		"token": {api.config.token},
 		"user":  {user},
 	}
-	response, err := userRequest("users.info", values, api.debug)
+	response, err := userRequest(ctx, "users.info", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -137,11 +171,16 @@ func (api *Client) GetUserInfo(user string) (*User, error) {
 
 // GetUsers returns the list of users (with their detailed information)
 func (api *Client) GetUsers() ([]User, error) {
+	return api.GetUsersContext(context.Background())
+}
+
+// GetUsersContext returns the list of users (with their detailed information) with a custom context
+func (api *Client) GetUsersContext(ctx context.Context) ([]User, error) {
 	values := url.Values{
 		"token":    {api.config.token},
 		"presence": {"1"},
 	}
-	response, err := userRequest("users.list", values, api.debug)
+	response, err := userRequest(ctx, "users.list", values, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -150,10 +189,15 @@ func (api *Client) GetUsers() ([]User, error) {
 
 // SetUserAsActive marks the currently authenticated user as active
 func (api *Client) SetUserAsActive() error {
+	return api.SetUserAsActiveContext(context.Background())
+}
+
+// SetUserAsActiveContext marks the currently authenticated user as active with a custom context
+func (api *Client) SetUserAsActiveContext(ctx context.Context) error {
 	values := url.Values{
 		"token": {api.config.token},
 	}
-	_, err := userRequest("users.setActive", values, api.debug)
+	_, err := userRequest(ctx, "users.setActive", values, api.debug)
 	if err != nil {
 		return err
 	}
@@ -162,11 +206,16 @@ func (api *Client) SetUserAsActive() error {
 
 // SetUserPresence changes the currently authenticated user presence
 func (api *Client) SetUserPresence(presence string) error {
+	return api.SetUserPresenceContext(context.Background(), presence)
+}
+
+// SetUserPresenceContext changes the currently authenticated user presence with a custom context
+func (api *Client) SetUserPresenceContext(ctx context.Context, presence string) error {
 	values := url.Values{
 		"token":    {api.config.token},
 		"presence": {presence},
 	}
-	_, err := userRequest("users.setPresence", values, api.debug)
+	_, err := userRequest(ctx, "users.setPresence", values, api.debug)
 	if err != nil {
 		return err
 	}
@@ -176,11 +225,16 @@ func (api *Client) SetUserPresence(presence string) error {
 
 // GetUserIdentity will retrieve user info available per identity scopes
 func (api *Client) GetUserIdentity() (*UserIdentityResponse, error) {
+	return api.GetUserIdentityContext(context.Background())
+}
+
+// GetUserIdentityContext will retrieve user info available per identity scopes with a custom context
+func (api *Client) GetUserIdentityContext(ctx context.Context) (*UserIdentityResponse, error) {
 	values := url.Values{
 		"token": {api.config.token},
 	}
 	response := &UserIdentityResponse{}
-	err := post("users.identity", values, response, api.debug)
+	err := post(ctx, "users.identity", values, response, api.debug)
 	if err != nil {
 		return nil, err
 	}
@@ -189,3 +243,120 @@ func (api *Client) GetUserIdentity() (*UserIdentityResponse, error) {
 	}
 	return response, nil
 }
+
+// SetUserPhoto changes the currently authenticated user's profile image
+func (api *Client) SetUserPhoto(ctx context.Context, image string, params UserSetPhotoParams) error {
+	return api.SetUserPhoto(context.Background(), image, params)
+}
+
+// SetUserPhotoContext changes the currently authenticated user's profile image using a custom context
+func (api *Client) SetUserPhotoContext(ctx context.Context, image string, params UserSetPhotoParams) error {
+	response := &SlackResponse{}
+	values := url.Values{
+		"token": {api.config.token},
+	}
+	if params.CropX != DEFAULT_USER_PHOTO_CROP_X {
+		values.Add("crop_x", string(params.CropX))
+	}
+	if params.CropY != DEFAULT_USER_PHOTO_CROP_Y {
+		values.Add("crop_y", string(params.CropY))
+	}
+	if params.CropW != DEFAULT_USER_PHOTO_CROP_W {
+		values.Add("crop_w", string(params.CropW))
+	}
+	err := postLocalWithMultipartResponse(ctx, "users.setPhoto", image, "image", values, response, api.debug)
+	if err != nil {
+		return err
+	}
+	if !response.Ok {
+		return errors.New(response.Error)
+	}
+	return nil
+}
+
+// DeleteUserPhoto deletes the current authenticated user's profile image
+func (api *Client) DeleteUserPhoto() error {
+	return api.DeleteUserPhotoContext(context.Background())
+}
+
+// DeleteUserPhotoContext deletes the current authenticated user's profile image with a custom context
+func (api *Client) DeleteUserPhotoContext(ctx context.Context) error {
+	response := &SlackResponse{}
+	values := url.Values{
+		"token": {api.config.token},
+	}
+	err := post(ctx, "users.deletePhoto", values, response, api.debug)
+	if err != nil {
+		return err
+	}
+	if !response.Ok {
+		return errors.New(response.Error)
+	}
+	return nil
+}
+
+// SetUserCustomStatus will set a custom status and emoji for the currently
+// authenticated user. If statusEmoji is "" and statusText is not, the Slack API
+// will automatically set it to ":speech_balloon:". Otherwise, if both are ""
+// the Slack API will unset the custom status/emoji.
+func (api *Client) SetUserCustomStatus(statusText, statusEmoji string) error {
+	return api.SetUserCustomStatusContext(context.Background(), statusText, statusEmoji)
+}
+
+// SetUserCustomStatusContext will set a custom status and emoji for the currently authenticated user with a custom context
+//
+// For more information see SetUserCustomStatus
+func (api *Client) SetUserCustomStatusContext(ctx context.Context, statusText, statusEmoji string) error {
+	// XXX(theckman): this anonymous struct is for making requests to the Slack
+	// API for setting and unsetting a User's Custom Status/Emoji. To change
+	// these values we must provide a JSON document as the profile POST field.
+	//
+	// We use an anonymous struct over UserProfile because to unset the values
+	// on the User's profile we cannot use the `json:"omitempty"` tag. This is
+	// because an empty string ("") is what's used to unset the values. Check
+	// out the API docs for more details:
+	//
+	// - https://api.slack.com/docs/presence-and-status#custom_status
+	profile, err := json.Marshal(
+		&struct {
+			StatusText  string `json:"status_text"`
+			StatusEmoji string `json:"status_emoji"`
+		}{
+			StatusText:  statusText,
+			StatusEmoji: statusEmoji,
+		},
+	)
+
+	if err != nil {
+		return err
+	}
+
+	values := url.Values{
+		"token":   {api.config.token},
+		"profile": {string(profile)},
+	}
+
+	response := &userResponseFull{}
+
+	if err = post(ctx, "users.profile.set", values, response, api.debug); err != nil {
+		return err
+	}
+
+	if !response.Ok {
+		return errors.New(response.Error)
+	}
+
+	return nil
+}
+
+// UnsetUserCustomStatus removes the custom status message for the currently
+// authenticated user. This is a convenience method that wraps (*Client).SetUserCustomStatus().
+func (api *Client) UnsetUserCustomStatus() error {
+	return api.UnsetUserCustomStatusContext(context.Background())
+}
+
+// UnsetUserCustomStatusContext removes the custom status message for the currently authenticated user
+// with a custom context. This is a convenience method that wraps (*Client).SetUserCustomStatus().
+func (api *Client) UnsetUserCustomStatusContext(ctx context.Context) error {
+	return api.SetUserCustomStatusContext(ctx, "", "")
+}

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

@@ -17,7 +17,7 @@ const (
 // RTM represents a managed websocket connection. It also supports
 // all the methods of the `Client` type.
 //
-// Create this element with Client's NewRTM().
+// Create this element with Client's NewRTM() or NewRTMWithOptions(*RTMOptions)
 type RTM struct {
 	idGen IDGenerator
 	pings map[int]time.Time
@@ -38,23 +38,23 @@ type RTM struct {
 
 	// UserDetails upon connection
 	info *Info
+
+	// useRTMStart should be set to true if you want to use
+	// rtm.start to connect to Slack, otherwise it will use
+	// rtm.connect
+	useRTMStart bool
 }
 
-// NewRTM returns a RTM, which provides a fully managed connection to
-// Slack's websocket-based Real-Time Messaging protocol.
-func newRTM(api *Client) *RTM {
-	return &RTM{
-		Client:           *api,
-		IncomingEvents:   make(chan RTMEvent, 50),
-		outgoingMessages: make(chan OutgoingMessage, 20),
-		pings:            make(map[int]time.Time),
-		isConnected:      false,
-		wasIntentional:   true,
-		killChannel:      make(chan bool),
-		forcePing:        make(chan bool),
-		rawEvents:        make(chan json.RawMessage),
-		idGen:            NewSafeID(1),
-	}
+// RTMOptions allows configuration of various options available for RTM messaging
+//
+// This structure will evolve in time so please make sure you are always using the
+// named keys for every entry available as per Go 1 compatibility promise adding fields
+// to this structure should not be considered a breaking change.
+type RTMOptions struct {
+	// UseRTMStart set to true in order to use rtm.start or false to use rtm.connect
+	// As of 11th July 2017 you should prefer setting this to false, see:
+	// https://api.slack.com/changelog/2017-04-start-using-rtm-connect-and-stop-using-rtm-start
+	UseRTMStart bool
 }
 
 // Disconnect and wait, blocking until a successful disconnection.

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

@@ -29,7 +29,7 @@ func (rtm *RTM) ManageConnection() {
 		connectionCount++
 		// start trying to connect
 		// the returned err is already passed onto the IncomingEvents channel
-		info, conn, err := rtm.connect(connectionCount)
+		info, conn, err := rtm.connect(connectionCount, rtm.useRTMStart)
 		// if err != nil then the connection is sucessful - otherwise it is
 		// fatal
 		if err != nil {
@@ -64,7 +64,9 @@ func (rtm *RTM) ManageConnection() {
 // connect attempts to connect to the slack websocket API. It handles any
 // errors that occur while connecting and will return once a connection
 // has been successfully opened.
-func (rtm *RTM) connect(connectionCount int) (*Info, *websocket.Conn, error) {
+// If useRTMStart is false then it uses rtm.connect to create the connection,
+// otherwise it uses rtm.start.
+func (rtm *RTM) connect(connectionCount int, useRTMStart bool) (*Info, *websocket.Conn, error) {
 	// used to provide exponential backoff wait time with jitter before trying
 	// to connect to slack again
 	boff := &backoff{
@@ -81,7 +83,7 @@ func (rtm *RTM) connect(connectionCount int) (*Info, *websocket.Conn, error) {
 			ConnectionCount: connectionCount,
 		}}
 		// attempt to start the connection
-		info, conn, err := rtm.startRTMAndDial()
+		info, conn, err := rtm.startRTMAndDial(useRTMStart)
 		if err == nil {
 			return info, conn, nil
 		}
@@ -105,10 +107,19 @@ func (rtm *RTM) connect(connectionCount int) (*Info, *websocket.Conn, error) {
 	}
 }
 
-// startRTMAndDial attemps to connect to the slack websocket. It returns the
-// full information returned by the "rtm.start" method on the slack API.
-func (rtm *RTM) startRTMAndDial() (*Info, *websocket.Conn, error) {
-	info, url, err := rtm.StartRTM()
+// startRTMAndDial attempts to connect to the slack websocket. If useRTMStart is true,
+// then it returns the  full information returned by the "rtm.start" method on the
+// slack API. Else it uses the "rtm.connect" method to connect
+func (rtm *RTM) startRTMAndDial(useRTMStart bool) (*Info, *websocket.Conn, error) {
+	var info *Info
+	var url string
+	var err error
+
+	if useRTMStart {
+		info, url, err = rtm.StartRTM()
+	} else {
+		info, url, err = rtm.ConnectRTM()
+	}
 	if err != nil {
 		return nil, nil, err
 	}

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

@@ -76,8 +76,12 @@ type UserChangeEvent struct {
 
 // EmojiChangedEvent represents the emoji changed event
 type EmojiChangedEvent struct {
-	Type           string `json:"type"`
-	EventTimestamp string `json:"event_ts"`
+	Type           string   `json:"type"`
+	SubType        string   `json:"subtype"`
+	Name           string   `json:"name"`
+	Names          []string `json:"names"`
+	Value          string   `json:"value"` 
+	EventTimestamp string   `json:"event_ts"`
 }
 
 // CommandsChangedEvent represents the commands changed event

vendor/github.com/paulrosania/go-charset/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2014, Paul Rosania. All rights reserved.
+Portions Copyright (c) 2013, Roger Peppe. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its contributors
+   may be used to endorse or promote products derived from this software without
+   specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/paulrosania/go-charset/charset/ascii.go

@@ -0,0 +1,65 @@
+package charset
+
+import (
+	"bytes"
+	"fmt"
+	"unicode/utf8"
+)
+
+func init() {
+	registerClass("ascii", fromASCII, toASCII)
+}
+
+const errorByte = '?'
+
+type translateFromASCII bool
+
+type codePointError struct {
+	i       int
+	cp      rune
+	charset string
+}
+
+func (e *codePointError) Error() string {
+	return fmt.Sprintf("Parse error at index %n: Code point %n is undefined in %s", e.i, e.cp, e.charset)
+}
+
+func (strict translateFromASCII) Translate(data []byte, eof bool) (int, []byte, error) {
+	buf := bytes.NewBuffer(make([]byte, 0, len(data)))
+	for i, c := range data {
+		if c > 0 && c < 128 {
+			buf.WriteByte(c)
+			if c < 32 && c != 10 && c != 13 && c != 9 {
+				// badly formed
+			}
+		} else {
+			if strict {
+				return 0, nil, &codePointError{i, rune(c), "US-ASCII"}
+			}
+			buf.WriteRune(utf8.RuneError)
+		}
+	}
+	return len(data), buf.Bytes(), nil
+}
+
+type translateToASCII bool
+
+func (strict translateToASCII) Translate(data []byte, eof bool) (int, []byte, error) {
+	buf := bytes.NewBuffer(make([]byte, 0, len(data)))
+	for _, c := range data {
+		if c > 0 && c < 128 {
+			buf.WriteByte(c)
+		} else {
+			buf.WriteByte(errorByte)
+		}
+	}
+	return len(data), buf.Bytes(), nil
+}
+
+func fromASCII(arg string) (Translator, error) {
+	return new(translateFromASCII), nil
+}
+
+func toASCII(arg string) (Translator, error) {
+	return new(translateToASCII), nil
+}

vendor/github.com/paulrosania/go-charset/charset/big5.go

@@ -0,0 +1,88 @@
+package charset
+
+import (
+	"fmt"
+	"unicode/utf8"
+)
+
+func init() {
+	registerClass("big5", fromBig5, nil)
+}
+
+// Big5 consists of 89 fonts of 157 chars each
+const (
+	big5Max  = 13973
+	big5Font = 157
+	big5Data = "big5.dat"
+)
+
+type translateFromBig5 struct {
+	font    int
+	scratch []byte
+	big5map []rune
+}
+
+func (p *translateFromBig5) Translate(data []byte, eof bool) (int, []byte, error) {
+	p.scratch = p.scratch[:0]
+	n := 0
+	for len(data) > 0 {
+		c := int(data[0])
+		data = data[1:]
+		n++
+		if p.font == -1 {
+			// idle state
+			if c >= 0xa1 {
+				p.font = c
+				continue
+			}
+			if c == 26 {
+				c = '\n'
+			}
+			continue
+		}
+		f := p.font
+		p.font = -1
+		r := utf8.RuneError
+		switch {
+		case c >= 64 && c <= 126:
+			c -= 64
+		case c >= 161 && c <= 254:
+			c = c - 161 + 63
+		default:
+			// bad big5 char
+			f = 255
+		}
+		if f <= 254 {
+			f -= 161
+			ix := f*big5Font + c
+			if ix < len(p.big5map) {
+				r = p.big5map[ix]
+			}
+			if r == -1 {
+				r = utf8.RuneError
+			}
+		}
+		p.scratch = appendRune(p.scratch, r)
+	}
+	return n, p.scratch, nil
+}
+
+type big5Key bool
+
+func fromBig5(arg string) (Translator, error) {
+	big5map, err := cache(big5Key(false), func() (interface{}, error) {
+		data, err := readFile(big5Data)
+		if err != nil {
+			return nil, fmt.Errorf("charset: cannot open big5 data file: %v", err)
+		}
+		big5map := []rune(string(data))
+		if len(big5map) != big5Max {
+			return nil, fmt.Errorf("charset: corrupt big5 data")
+		}
+		return big5map, nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return &translateFromBig5{big5map: big5map.([]rune), font: -1}, nil
+}

vendor/github.com/paulrosania/go-charset/charset/charset.go

@@ -0,0 +1,301 @@
+// The charset package implements translation between character sets.
+// It uses Unicode as the intermediate representation.
+// Because it can be large, the character set data is separated
+// from the charset package. It can be embedded in the Go
+// executable by importing the data package:
+//
+//	import _ "github.com/paulrosania/go-charset/data"
+//
+// It can also made available in a data directory (by settting CharsetDir).
+package charset
+
+import (
+	"io"
+	"strings"
+	"unicode/utf8"
+)
+
+// Charset holds information about a given character set.
+type Charset struct {
+	Name    string   // Canonical name of character set.
+	Aliases []string // Known aliases.
+	Desc    string   // Description.
+	NoFrom  bool     // Not possible to translate from this charset.
+	NoTo    bool     // Not possible to translate to this charset.
+}
+
+// Translator represents a character set converter.
+// The Translate method translates the given data,
+// and returns the number of bytes of data consumed,
+// a slice containing the converted data (which may be
+// overwritten on the next call to Translate), and any
+// conversion error. If eof is true, the data represents
+// the final bytes of the input.
+type Translator interface {
+	Translate(data []byte, eof bool) (n int, cdata []byte, err error)
+}
+
+// A Factory can be used to make character set translators.
+type Factory interface {
+	// TranslatorFrom creates a translator that will translate from the named character
+	// set to UTF-8.
+	TranslatorFrom(name string) (Translator, error) // Create a Translator from this character set to.
+
+	// TranslatorTo creates a translator that will translate from UTF-8 to the named character set.
+	TranslatorTo(name string) (Translator, error) // Create a Translator To this character set.
+
+	// Names returns all the character set names accessibile through the factory.
+	Names() []string
+
+	// Info returns information on the named character set. It returns nil if the
+	// factory doesn't recognise the given name.
+	Info(name string) *Charset
+}
+
+var factories = []Factory{localFactory{}}
+
+// Register registers a new Factory which will be consulted when NewReader
+// or NewWriter needs a character set translator for a given name.
+func Register(factory Factory) {
+	factories = append(factories, factory)
+}
+
+// NewReader returns a new Reader that translates from the named
+// character set to UTF-8 as it reads r.
+func NewReader(charset string, r io.Reader) (io.Reader, error) {
+	tr, err := TranslatorFrom(charset)
+	if err != nil {
+		return nil, err
+	}
+	return NewTranslatingReader(r, tr), nil
+}
+
+// NewWriter returns a new WriteCloser writing to w.  It converts writes
+// of UTF-8 text into writes on w of text in the named character set.
+// The Close is necessary to flush any remaining partially translated
+// characters to the output.
+func NewWriter(charset string, w io.Writer) (io.WriteCloser, error) {
+	tr, err := TranslatorTo(charset)
+	if err != nil {
+		return nil, err
+	}
+	return NewTranslatingWriter(w, tr), nil
+}
+
+// Info returns information about a character set, or nil
+// if the character set is not found.
+func Info(name string) *Charset {
+	for _, f := range factories {
+		if info := f.Info(name); info != nil {
+			return info
+		}
+	}
+	return nil
+}
+
+// Names returns the canonical names of all supported character sets, in alphabetical order.
+func Names() []string {
+	// TODO eliminate duplicates
+	var names []string
+	for _, f := range factories {
+		names = append(names, f.Names()...)
+	}
+	return names
+}
+
+// TranslatorFrom returns a translator that will translate from
+// the named character set to UTF-8.
+func TranslatorFrom(charset string) (Translator, error) {
+	var err error
+	var tr Translator
+	for _, f := range factories {
+		tr, err = f.TranslatorFrom(charset)
+		if err == nil {
+			break
+		}
+	}
+	if tr == nil {
+		return nil, err
+	}
+	return tr, nil
+}
+
+// TranslatorTo returns a translator that will translate from UTF-8
+// to the named character set.
+func TranslatorTo(charset string) (Translator, error) {
+	var err error
+	var tr Translator
+	for _, f := range factories {
+		tr, err = f.TranslatorTo(charset)
+		if err == nil {
+			break
+		}
+	}
+	if tr == nil {
+		return nil, err
+	}
+	return tr, nil
+}
+
+func normalizedChar(c rune) rune {
+	switch {
+	case c >= 'A' && c <= 'Z':
+		c = c - 'A' + 'a'
+	case c == '_':
+		c = '-'
+	}
+	return c
+}
+
+// NormalisedName returns s with all Roman capitals
+// mapped to lower case, and '_' mapped to '-'
+func NormalizedName(s string) string {
+	return strings.Map(normalizedChar, s)
+}
+
+type translatingWriter struct {
+	w   io.Writer
+	tr  Translator
+	buf []byte // unconsumed data from writer.
+}
+
+// NewTranslatingWriter returns a new WriteCloser writing to w.
+// It passes the written bytes through the given Translator.
+func NewTranslatingWriter(w io.Writer, tr Translator) io.WriteCloser {
+	return &translatingWriter{w: w, tr: tr}
+}
+
+func (w *translatingWriter) Write(data []byte) (rn int, rerr error) {
+	wdata := data
+	if len(w.buf) > 0 {
+		w.buf = append(w.buf, data...)
+		wdata = w.buf
+	}
+	n, cdata, err := w.tr.Translate(wdata, false)
+	if err != nil {
+		// TODO
+	}
+	if n > 0 {
+		_, err = w.w.Write(cdata)
+		if err != nil {
+			return 0, err
+		}
+	}
+	w.buf = w.buf[:0]
+	if n < len(wdata) {
+		w.buf = append(w.buf, wdata[n:]...)
+	}
+	return len(data), nil
+}
+
+func (p *translatingWriter) Close() error {
+	for {
+		n, data, err := p.tr.Translate(p.buf, true)
+		p.buf = p.buf[n:]
+		if err != nil {
+			// TODO
+		}
+		// If the Translator produces no data
+		// at EOF, then assume that it never will.
+		if len(data) == 0 {
+			break
+		}
+		n, err = p.w.Write(data)
+		if err != nil {
+			return err
+		}
+		if n < len(data) {
+			return io.ErrShortWrite
+		}
+		if len(p.buf) == 0 {
+			break
+		}
+	}
+	return nil
+}
+
+type translatingReader struct {
+	r     io.Reader
+	tr    Translator
+	cdata []byte // unconsumed data from converter.
+	rdata []byte // unconverted data from reader.
+	err   error  // final error from reader.
+}
+
+// NewTranslatingReader returns a new Reader that
+// translates data using the given Translator as it reads r.
+func NewTranslatingReader(r io.Reader, tr Translator) io.Reader {
+	return &translatingReader{r: r, tr: tr}
+}
+
+func (r *translatingReader) Read(buf []byte) (int, error) {
+	for {
+		if len(r.cdata) > 0 {
+			n := copy(buf, r.cdata)
+			r.cdata = r.cdata[n:]
+			return n, nil
+		}
+		if r.err == nil {
+			r.rdata = ensureCap(r.rdata, len(r.rdata)+len(buf))
+			n, err := r.r.Read(r.rdata[len(r.rdata):cap(r.rdata)])
+			// Guard against non-compliant Readers.
+			if n == 0 && err == nil {
+				err = io.EOF
+			}
+			r.rdata = r.rdata[0 : len(r.rdata)+n]
+			r.err = err
+		} else if len(r.rdata) == 0 {
+			break
+		}
+		nc, cdata, cvterr := r.tr.Translate(r.rdata, r.err != nil)
+		if cvterr != nil {
+			// TODO
+		}
+		r.cdata = cdata
+
+		// Ensure that we consume all bytes at eof
+		// if the converter refuses them.
+		if nc == 0 && r.err != nil {
+			nc = len(r.rdata)
+		}
+
+		// Copy unconsumed data to the start of the rdata buffer.
+		r.rdata = r.rdata[0:copy(r.rdata, r.rdata[nc:])]
+	}
+	return 0, r.err
+}
+
+// ensureCap returns s with a capacity of at least n bytes.
+// If cap(s) < n, then it returns a new copy of s with the
+// required capacity.
+func ensureCap(s []byte, n int) []byte {
+	if n <= cap(s) {
+		return s
+	}
+	// logic adapted from appendslice1 in runtime
+	m := cap(s)
+	if m == 0 {
+		m = n
+	} else {
+		for {
+			if m < 1024 {
+				m += m
+			} else {
+				m += m / 4
+			}
+			if m >= n {
+				break
+			}
+		}
+	}
+	t := make([]byte, len(s), m)
+	copy(t, s)
+	return t
+}
+
+func appendRune(buf []byte, r rune) []byte {
+	n := len(buf)
+	buf = ensureCap(buf, n+utf8.UTFMax)
+	nu := utf8.EncodeRune(buf[n:n+utf8.UTFMax], r)
+	return buf[0 : n+nu]
+}

vendor/github.com/paulrosania/go-charset/charset/codepage.go

@@ -0,0 +1,133 @@
+package charset
+
+import (
+	"fmt"
+	"unicode/utf8"
+)
+
+func init() {
+	registerClass("cp", fromCodePage, toCodePage)
+}
+
+type translateFromCodePage struct {
+	byte2rune *[256]rune
+	scratch   []byte
+}
+
+type cpKeyFrom string
+type cpKeyTo string
+
+func (p *translateFromCodePage) Translate(data []byte, eof bool) (int, []byte, error) {
+	p.scratch = ensureCap(p.scratch, len(data)*utf8.UTFMax)[:0]
+	buf := p.scratch
+	for _, x := range data {
+		r := p.byte2rune[x]
+		if r < utf8.RuneSelf {
+			buf = append(buf, byte(r))
+			continue
+		}
+		size := utf8.EncodeRune(buf[len(buf):cap(buf)], r)
+		buf = buf[0 : len(buf)+size]
+	}
+	return len(data), buf, nil
+}
+
+type toCodePageInfo struct {
+	rune2byte map[rune]byte
+	// same gives the number of runes at start of code page that map exactly to
+	// unicode.
+	same rune
+}
+
+type translateToCodePage struct {
+	toCodePageInfo
+	scratch []byte
+}
+
+func (p *translateToCodePage) Translate(data []byte, eof bool) (int, []byte, error) {
+	p.scratch = ensureCap(p.scratch, len(data))
+	buf := p.scratch[:0]
+
+	for i := 0; i < len(data); {
+		r := rune(data[i])
+		size := 1
+		if r >= utf8.RuneSelf {
+			r, size = utf8.DecodeRune(data[i:])
+			if size == 1 && !eof && !utf8.FullRune(data[i:]) {
+				return i, buf, nil
+			}
+		}
+
+		var b byte
+		if r < p.same {
+			b = byte(r)
+		} else {
+			var ok bool
+			b, ok = p.rune2byte[r]
+			if !ok {
+				b = '?'
+			}
+		}
+		buf = append(buf, b)
+		i += size
+	}
+	return len(data), buf, nil
+}
+
+func fromCodePage(arg string) (Translator, error) {
+	runes, err := cache(cpKeyFrom(arg), func() (interface{}, error) {
+		data, err := readFile(arg)
+		if err != nil {
+			return nil, err
+		}
+		runes := []rune(string(data))
+		if len(runes) != 256 {
+			return nil, fmt.Errorf("charset: %q has wrong rune count (%d)", arg, len(runes))
+		}
+		r := new([256]rune)
+		copy(r[:], runes)
+		return r, nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return &translateFromCodePage{byte2rune: runes.(*[256]rune)}, nil
+}
+
+func toCodePage(arg string) (Translator, error) {
+	m, err := cache(cpKeyTo(arg), func() (interface{}, error) {
+		data, err := readFile(arg)
+		if err != nil {
+			return nil, err
+		}
+
+		info := toCodePageInfo{
+			rune2byte: make(map[rune]byte),
+			same:      256,
+		}
+		atStart := true
+		i := rune(0)
+		for _, r := range string(data) {
+			if atStart {
+				if r == i {
+					i++
+					continue
+				}
+				info.same = i
+				atStart = false
+			}
+			info.rune2byte[r] = byte(i)
+			i++
+		}
+		// TODO fix tables
+		// fmt.Printf("%s, same = %d\n", arg, info.same)
+		if i != 256 {
+			return nil, fmt.Errorf("charset: %q has wrong rune count (%d)", arg, i)
+		}
+		return info, nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return &translateToCodePage{toCodePageInfo: m.(toCodePageInfo)}, nil
+}

vendor/github.com/paulrosania/go-charset/charset/cp932.go

@@ -0,0 +1,195 @@
+package charset
+
+import (
+	"fmt"
+	"unicode/utf8"
+)
+
+func init() {
+	registerClass("cp932", fromCP932, nil)
+}
+
+// encoding details
+// (Traditional) Shift-JIS
+//
+// 00..1f	control characters
+// 20		space
+// 21..7f	JIS X 0201:1976/1997 roman (see notes)
+// 80		undefined
+// 81..9f	lead byte of JIS X 0208-1983 or JIS X 0202:1990/1997
+// a0		undefined
+// a1..df	JIS X 0201:1976/1997 katakana
+// e0..ea	lead byte of JIS X 0208-1983 or JIS X 0202:1990/1997
+// eb..ff	undefined
+//
+// CP932 (windows-31J)
+//
+// this encoding scheme extends Shift-JIS in the following way
+//
+// eb..ec	undefined (marked as lead bytes - see notes below)
+// ed..ee	lead byte of NEC-selected IBM extended characters
+// ef		undefined (marked as lead byte - see notes below)
+// f0..f9	lead byte of User defined GAIJI (see note below)
+// fa..fc	lead byte of IBM extended characters
+// fd..ff	undefined
+//
+//
+// Notes
+//
+// JISX 0201:1976/1997 roman
+//	this is the same as ASCII but with 0x5c (ASCII code for '\')
+//	representing the Yen currency symbol '¥' (U+00a5)
+//	This mapping is contentious, some conversion packages implent it
+//	others do not.
+//	The mapping files from The Unicode Consortium show cp932 mapping
+//	plain ascii in the range 00..7f whereas shift-jis maps 0x5c ('\') to the yen
+//	symbol (¥) and 0x7e ('~') to overline (¯)
+//
+// CP932 double-byte character codes:
+//
+// eb-ec, ef, f0-f9:
+// 	Marked as DBCS LEAD BYTEs in the unicode mapping data
+//	obtained from:
+//		https://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP932.TXT
+//
+// 	but there are no defined mappings for codes in this range.
+// 	It is not clear whether or not an implementation should
+// 	consume one or two bytes before emitting an error char.
+
+const (
+	kanaPages    = 1
+	kanaPageSize = 63
+	kanaChar0    = 0xa1
+
+	cp932Pages    = 45  // 81..84, 87..9f, e0..ea, ed..ee, fa..fc
+	cp932PageSize = 189 // 40..fc (including 7f)
+	cp932Char0    = 0x40
+)
+
+type jisTables struct {
+	page0   [256]rune
+	dbcsoff [256]int
+	cp932   []rune
+}
+
+type translateFromCP932 struct {
+	tables  *jisTables
+	scratch []byte
+}
+
+func (p *translateFromCP932) Translate(data []byte, eof bool) (int, []byte, error) {
+	tables := p.tables
+	p.scratch = p.scratch[:0]
+	n := 0
+	for i := 0; i < len(data); i++ {
+		b := data[i]
+		r := tables.page0[b]
+		if r != -1 {
+			p.scratch = appendRune(p.scratch, r)
+			n++
+			continue
+		}
+		// DBCS
+		i++
+		if i >= len(data) {
+			break
+		}
+		pnum := tables.dbcsoff[b]
+		ix := int(data[i]) - cp932Char0
+		if pnum == -1 || ix < 0 || ix >= cp932PageSize {
+			r = utf8.RuneError
+		} else {
+			r = tables.cp932[pnum*cp932PageSize+ix]
+		}
+		p.scratch = appendRune(p.scratch, r)
+		n += 2
+	}
+	return n, p.scratch, nil
+}
+
+type cp932Key bool
+
+func fromCP932(arg string) (Translator, error) {
+	shiftJIS := arg == "shiftjis"
+	tables, err := cache(cp932Key(shiftJIS), func() (interface{}, error) {
+		tables := new(jisTables)
+		kana, err := jisGetMap("jisx0201kana.dat", kanaPageSize, kanaPages)
+		if err != nil {
+			return nil, err
+		}
+		tables.cp932, err = jisGetMap("cp932.dat", cp932PageSize, cp932Pages)
+		if err != nil {
+			return nil, err
+		}
+
+		// jisx0201kana is mapped into 0xA1..0xDF
+		for i := 0; i < kanaPageSize; i++ {
+			tables.page0[i+kanaChar0] = kana[i]
+		}
+
+		// 00..7f same as ascii in cp932
+		for i := rune(0); i < 0x7f; i++ {
+			tables.page0[i] = i
+		}
+
+		if shiftJIS {
+			// shift-jis uses JIS X 0201 for the ASCII range
+			// this is the same as ASCII apart from
+			// 0x5c ('\') maps to yen symbol (¥) and 0x7e ('~') maps to overline (¯)
+			tables.page0['\\'] = '¥'
+			tables.page0['~'] = '¯'
+		}
+
+		// pre-calculate DBCS page numbers to mapping file page numbers
+		// and mark codes in page0 that are DBCS lead bytes
+		pnum := 0
+		for i := 0x81; i <= 0x84; i++ {
+			tables.page0[i] = -1
+			tables.dbcsoff[i] = pnum
+			pnum++
+		}
+		for i := 0x87; i <= 0x9f; i++ {
+			tables.page0[i] = -1
+			tables.dbcsoff[i] = pnum
+			pnum++
+		}
+		for i := 0xe0; i <= 0xea; i++ {
+			tables.page0[i] = -1
+			tables.dbcsoff[i] = pnum
+			pnum++
+		}
+		if shiftJIS {
+			return tables, nil
+		}
+		// add in cp932 extensions
+		for i := 0xed; i <= 0xee; i++ {
+			tables.page0[i] = -1
+			tables.dbcsoff[i] = pnum
+			pnum++
+		}
+		for i := 0xfa; i <= 0xfc; i++ {
+			tables.page0[i] = -1
+			tables.dbcsoff[i] = pnum
+			pnum++
+		}
+		return tables, nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &translateFromCP932{tables: tables.(*jisTables)}, nil
+}
+
+func jisGetMap(name string, pgsize, npages int) ([]rune, error) {
+	data, err := readFile(name)
+	if err != nil {
+		return nil, err
+	}
+	m := []rune(string(data))
+	if len(m) != pgsize*npages {
+		return nil, fmt.Errorf("%q: incorrect length data", name)
+	}
+	return m, nil
+}

vendor/github.com/paulrosania/go-charset/charset/file.go

@@ -0,0 +1,40 @@
+package charset
+
+import (
+	"io"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+)
+
+var files = make(map[string]func() (io.ReadCloser, error))
+
+// RegisterDataFile registers the existence of a given data
+// file with the given name that may be used by a character-set converter.
+// It is intended to be used by packages that wish to embed
+// data in the executable binary, and should not be
+// used normally.
+func RegisterDataFile(name string, open func() (io.ReadCloser, error)) {
+	files[name] = open
+}
+
+// CharsetDir gives the location of the default data file directory.
+// This directory will be used for files with names that have not
+// been registered with RegisterDataFile.
+var CharsetDir = "/usr/local/lib/go-charset/datafiles"
+
+func readFile(name string) (data []byte, err error) {
+	var r io.ReadCloser
+	if open := files[name]; open != nil {
+		r, err = open()
+		if err != nil {
+			return
+		}
+	} else {
+		r, err = os.Open(filepath.Join(CharsetDir, name))
+		if err != nil {
+			return
+		}
+	}
+	return ioutil.ReadAll(r)
+}

vendor/github.com/paulrosania/go-charset/charset/iconv/iconv.go

@@ -0,0 +1,184 @@
+// The iconv package provides an interface to the GNU iconv character set
+// conversion library (see http://www.gnu.org/software/libiconv/).
+// It automatically registers all the character sets with the charset package,
+// so it is usually used simply for the side effects of importing it.
+// Example:
+//   import (
+//		"go-charset.googlecode.com/hg/charset"
+//		_ "go-charset.googlecode.com/hg/charset/iconv"
+//   )
+package iconv
+
+//#cgo darwin LDFLAGS: -liconv
+//#include <stdlib.h>
+//#include <iconv.h>
+//#include <errno.h>
+//iconv_t iconv_open_error = (iconv_t)-1;
+//size_t iconv_error = (size_t)-1;
+import "C"
+import (
+	"errors"
+	"fmt"
+	"github.com/paulrosania/go-charset/charset"
+	"runtime"
+	"strings"
+	"syscall"
+	"unicode/utf8"
+	"unsafe"
+)
+
+type iconvTranslator struct {
+	cd      C.iconv_t
+	invalid rune
+	scratch []byte
+}
+
+func canonicalChar(c rune) rune {
+	if c >= 'a' && c <= 'z' {
+		return c - 'a' + 'A'
+	}
+	return c
+}
+
+func canonicalName(s string) string {
+	return strings.Map(canonicalChar, s)
+}
+
+func init() {
+	charset.Register(iconvFactory{})
+}
+
+type iconvFactory struct {
+}
+
+func (iconvFactory) TranslatorFrom(name string) (charset.Translator, error) {
+	return Translator("UTF-8", name, utf8.RuneError)
+}
+
+func (iconvFactory) TranslatorTo(name string) (charset.Translator, error) {
+	// BUG This is wrong.  The target character set may not be ASCII
+	// compatible.  There's no easy solution to this other than
+	// removing the offending code point.
+	return Translator(name, "UTF-8", '?')
+}
+
+// Translator returns a Translator that translates between
+// the named character sets. When an invalid multibyte
+// character is found, the bytes in invalid are substituted instead.
+func Translator(toCharset, fromCharset string, invalid rune) (charset.Translator, error) {
+	cto, cfrom := C.CString(toCharset), C.CString(fromCharset)
+	cd, err := C.iconv_open(cto, cfrom)
+
+	C.free(unsafe.Pointer(cfrom))
+	C.free(unsafe.Pointer(cto))
+
+	if cd == C.iconv_open_error {
+		if err == syscall.EINVAL {
+			return nil, errors.New("iconv: conversion not supported")
+		}
+		return nil, err
+	}
+	t := &iconvTranslator{cd: cd, invalid: invalid}
+	runtime.SetFinalizer(t, func(*iconvTranslator) {
+		C.iconv_close(cd)
+	})
+	return t, nil
+}
+
+func (iconvFactory) Names() []string {
+	all := aliases()
+	names := make([]string, 0, len(all))
+	for name, aliases := range all {
+		if aliases[0] == name {
+			names = append(names, name)
+		}
+	}
+	return names
+}
+
+func (iconvFactory) Info(name string) *charset.Charset {
+	name = strings.ToLower(name)
+	all := aliases()
+	a, ok := all[name]
+	if !ok {
+		return nil
+	}
+	return &charset.Charset{
+		Name:    name,
+		Aliases: a,
+	}
+}
+
+func (p *iconvTranslator) Translate(data []byte, eof bool) (rn int, rd []byte, rerr error) {
+	n := 0
+	p.scratch = p.scratch[:0]
+	for len(data) > 0 {
+		p.scratch = ensureCap(p.scratch, len(p.scratch)+len(data)*utf8.UTFMax)
+		cData := (*C.char)(unsafe.Pointer(&data[:1][0]))
+		nData := C.size_t(len(data))
+
+		ns := len(p.scratch)
+		cScratch := (*C.char)(unsafe.Pointer(&p.scratch[ns : ns+1][0]))
+		nScratch := C.size_t(cap(p.scratch) - ns)
+		r, err := C.iconv(p.cd, &cData, &nData, &cScratch, &nScratch)
+
+		p.scratch = p.scratch[0 : cap(p.scratch)-int(nScratch)]
+		n += len(data) - int(nData)
+		data = data[len(data)-int(nData):]
+
+		if r != C.iconv_error || err == nil {
+			return n, p.scratch, nil
+		}
+		switch err := err.(syscall.Errno); err {
+		case C.EILSEQ:
+			// invalid multibyte sequence - skip one byte and continue
+			p.scratch = appendRune(p.scratch, p.invalid)
+			n++
+			data = data[1:]
+		case C.EINVAL:
+			// incomplete multibyte sequence
+			return n, p.scratch, nil
+		case C.E2BIG:
+			// output buffer not large enough; try again with larger buffer.
+			p.scratch = ensureCap(p.scratch, cap(p.scratch)+utf8.UTFMax)
+		default:
+			panic(fmt.Sprintf("unexpected error code: %v", err))
+		}
+	}
+	return n, p.scratch, nil
+}
+
+// ensureCap returns s with a capacity of at least n bytes.
+// If cap(s) < n, then it returns a new copy of s with the
+// required capacity.
+func ensureCap(s []byte, n int) []byte {
+	if n <= cap(s) {
+		return s
+	}
+	// logic adapted from appendslice1 in runtime
+	m := cap(s)
+	if m == 0 {
+		m = n
+	} else {
+		for {
+			if m < 1024 {
+				m += m
+			} else {
+				m += m / 4
+			}
+			if m >= n {
+				break
+			}
+		}
+	}
+	t := make([]byte, len(s), m)
+	copy(t, s)
+	return t
+}
+
+func appendRune(buf []byte, r rune) []byte {
+	n := len(buf)
+	buf = ensureCap(buf, n+utf8.UTFMax)
+	nu := utf8.EncodeRune(buf[n:n+utf8.UTFMax], r)
+	return buf[0 : n+nu]
+}

vendor/github.com/paulrosania/go-charset/charset/iconv/list_query.go

@@ -0,0 +1,80 @@
+// +build !linux
+// This file is systemdependent because not all versions
+// of iconv have the iconvlist function.
+
+package iconv
+
+//#cgo darwin LDFLAGS: -liconv
+//#cgo freebsd LDFLAGS: -liconv
+//#cgo windows LDFLAGS: -liconv
+//#include <stdlib.h>
+//#include <string.h>
+//#include <iconv.h>
+//#include <errno.h>
+//
+//typedef struct nameList nameList;
+//struct nameList {
+//	int n;
+//	char **names;
+//	nameList *next;
+//};
+//
+//int
+//addNames(unsigned int n, const char *const *names, void *data) {
+//	// we can't call back to Go because of the stack size issue,
+//	// so copy all the names.
+//	nameList *hd, *e;
+//	int i;
+//
+//	hd = data;
+//	e = malloc(sizeof(nameList));
+//	e->n = n;
+//	e->names = malloc(sizeof(char*) * n);
+//	for(i = 0; i < n; i++){
+//		e->names[i] = strdup(names[i]);
+//	}
+//	e->next = hd->next;
+//	hd->next = e;
+//	return 0;
+//}
+//
+//nameList *
+//listNames(void) {
+//	nameList hd;
+//	hd.next = 0;
+//	iconvlist(addNames, &hd);
+//	return hd.next;
+//}
+import "C"
+
+import (
+	"strings"
+	"sync"
+	"unsafe"
+)
+
+var getAliasesOnce sync.Once
+var allAliases = map[string][]string{}
+
+func aliases() map[string][]string {
+	getAliasesOnce.Do(getAliases)
+	return allAliases
+}
+
+func getAliases() {
+	var next *C.nameList
+	for p := C.listNames(); p != nil; p = next {
+		next = p.next
+		aliases := make([]string, p.n)
+		pnames := (*[1e9]*C.char)(unsafe.Pointer(p.names))
+		for i := range aliases {
+			aliases[i] = strings.ToLower(C.GoString(pnames[i]))
+			C.free(unsafe.Pointer(pnames[i]))
+		}
+		C.free(unsafe.Pointer(p.names))
+		C.free(unsafe.Pointer(p))
+		for _, alias := range aliases {
+			allAliases[alias] = aliases
+		}
+	}
+}

vendor/github.com/paulrosania/go-charset/charset/iconv/list_static.go

@@ -0,0 +1,176 @@
+// +build linux
+
+// We just use a list of names obtained from iconv on a platform
+// that allows iconvlist. We could invoke the iconv command,
+// but that might fail too, and it gives no information about aliases.
+
+package iconv
+
+import (
+	"sync"
+)
+
+func aliases() map[string][]string {
+	initAliasesOnce.Do(initAliases)
+	return allAliases
+}
+
+var initAliasesOnce sync.Once
+var allAliases map[string][]string
+
+func initAliases() {
+	allAliases = make(map[string][]string)
+	for _, a := range aliasData {
+		for _, alias := range a {
+			allAliases[alias] = a
+		}
+	}
+}
+
+var aliasData = [][]string{
+	{"437", "cp437", "ibm437", "cspc8codepage437"},
+	{"850", "cp850", "ibm850", "cspc850multilingual"},
+	{"852", "cp852", "ibm852", "cspcp852"},
+	{"855", "cp855", "ibm855", "csibm855"},
+	{"857", "cp857", "ibm857", "csibm857"},
+	{"860", "cp860", "ibm860", "csibm860"},
+	{"861", "cp-is", "cp861", "ibm861", "csibm861"},
+	{"862", "cp862", "ibm862", "cspc862latinhebrew"},
+	{"863", "cp863", "ibm863", "csibm863"},
+	{"865", "cp865", "ibm865", "csibm865"},
+	{"866", "cp866", "ibm866", "csibm866"},
+	{"869", "cp-gr", "cp869", "ibm869", "csibm869"},
+	{"ansi-x3.4-1968", "ansi-x3.4-1986", "ascii", "cp367", "ibm367", "iso-ir-6", "iso646-us", "iso-646.irv:1991", "us", "us-ascii", "csascii"},
+	{"arabic", "asmo-708", "ecma-114", "iso-8859-6", "iso-ir-127", "iso8859-6", "iso-8859-6", "iso-8859-6:1987", "csisolatinarabic"},
+	{"armscii-8"},
+	{"atari", "atarist"},
+	{"big5-2003"},
+	{"big-5", "big-five", "big5", "bigfive", "cn-big5", "csbig5"},
+	{"big5-hkscs:1999"},
+	{"big5-hkscs:2001"},
+	{"big5-hkscs", "big5-hkscs:2004", "big5hkscs"},
+	{"c99"},
+	{"chinese", "gb-2312-80", "iso-ir-58", "csiso58gb231280"},
+	{"cn", "gb-1988-80", "iso-ir-57", "iso646-cn", "csiso57gb1988"},
+	{"cn-gb", "euc-cn", "euccn", "gb2312", "csgb2312"},
+	{"cn-gb-isoir165", "iso-ir-165"},
+	{"cp1046"},
+	{"cp1124"},
+	{"cp1125"},
+	{"cp1129"},
+	{"cp1131"},
+	{"cp1133", "ibm-cp1133"},
+	{"cp1161", "ibm-1161", "ibm1161", "csibm1161"},
+	{"cp1162", "ibm-1162", "ibm1162", "csibm1162"},
+	{"cp1163", "ibm-1163", "ibm1163", "csibm1163"},
+	{"cp1250", "ms-ee", "windows-1250"},
+	{"cp1251", "ms-cyrl", "windows-1251"},
+	{"cp1252", "ms-ansi", "windows-1252"},
+	{"cp1253", "ms-greek", "windows-1253"},
+	{"cp1254", "ms-turk", "windows-1254"},
+	{"cp1255", "ms-hebr", "windows-1255"},
+	{"cp1256", "ms-arab", "windows-1256"},
+	{"cp1257", "winbaltrim", "windows-1257"},
+	{"cp1258", "windows-1258"},
+	{"cp1361", "johab"},
+	{"cp154", "cyrillic-asian", "pt154", "ptcp154", "csptcp154"},
+	{"cp737"},
+	{"cp775", "ibm775", "cspc775baltic"},
+	{"cp819", "ibm819", "iso-8859-1", "iso-ir-100", "iso8859-1", "iso-8859-1", "iso-8859-1:1987", "l1", "latin1", "csisolatin1"},
+	{"cp853"},
+	{"cp856"},
+	{"cp858"},
+	{"cp864", "ibm864", "csibm864"},
+	{"cp874", "windows-874"},
+	{"cp922"},
+	{"cp932"},
+	{"cp936", "ms936", "windows-936"},
+	{"cp943"},
+	{"cp949", "uhc"},
+	{"cp950"},
+	{"cyrillic", "iso-8859-5", "iso-ir-144", "iso8859-5", "iso-8859-5", "iso-8859-5:1988", "csisolatincyrillic"},
+	{"dec-hanyu"},
+	{"dec-kanji"},
+	{"ecma-118", "elot-928", "greek", "greek8", "iso-8859-7", "iso-ir-126", "iso8859-7", "iso-8859-7", "iso-8859-7:1987", "iso-8859-7:2003", "csisolatingreek"},
+	{"euc-jis-2004", "euc-jisx0213"},
+	{"euc-jp", "eucjp", "extended-unix-code-packed-format-for-japanese", "cseucpkdfmtjapanese"},
+	{"euc-kr", "euckr", "cseuckr"},
+	{"euc-tw", "euctw", "cseuctw"},
+	{"gb18030"},
+	{"gbk"},
+	{"georgian-academy"},
+	{"georgian-ps"},
+	{"hebrew", "iso-8859-8", "iso-ir-138", "iso8859-8", "iso-8859-8", "iso-8859-8:1988", "csisolatinhebrew"},
+	{"hp-roman8", "r8", "roman8", "cshproman8"},
+	{"hz", "hz-gb-2312"},
+	{"iso-10646-ucs-2", "ucs-2", "csunicode"},
+	{"iso-10646-ucs-4", "ucs-4", "csucs4"},
+	{"iso-2022-cn", "csiso2022cn"},
+	{"iso-2022-cn-ext"},
+	{"iso-2022-jp-1"},
+	{"iso-2022-jp-2004", "iso-2022-jp-3"},
+	{"iso-2022-jp-2", "csiso2022jp2"},
+	{"iso-2022-jp", "csiso2022jp"},
+	{"iso-2022-kr", "csiso2022kr"},
+	{"iso-8859-10", "iso-ir-157", "iso8859-10", "iso-8859-10", "iso-8859-10:1992", "l6", "latin6", "csisolatin6"},
+	{"iso-8859-11", "iso8859-11", "iso-8859-11"},
+	{"iso-8859-13", "iso-ir-179", "iso8859-13", "iso-8859-13", "l7", "latin7"},
+	{"iso-8859-14", "iso-celtic", "iso-ir-199", "iso8859-14", "iso-8859-14", "iso-8859-14:1998", "l8", "latin8"},
+	{"iso-8859-15", "iso-ir-203", "iso8859-15", "iso-8859-15", "iso-8859-15:1998", "latin-9"},
+	{"iso-8859-16", "iso-ir-226", "iso8859-16", "iso-8859-16", "iso-8859-16:2001", "l10", "latin10"},
+	{"iso-8859-2", "iso-ir-101", "iso8859-2", "iso-8859-2", "iso-8859-2:1987", "l2", "latin2", "csisolatin2"},
+	{"iso-8859-3", "iso-ir-109", "iso8859-3", "iso-8859-3", "iso-8859-3:1988", "l3", "latin3", "csisolatin3"},
+	{"iso-8859-4", "iso-ir-110", "iso8859-4", "iso-8859-4", "iso-8859-4:1988", "l4", "latin4", "csisolatin4"},
+	{"iso-8859-9", "iso-ir-148", "iso8859-9", "iso-8859-9", "iso-8859-9:1989", "l5", "latin5", "csisolatin5"},
+	{"iso-ir-149", "korean", "ksc-5601", "ks-c-5601-1987", "ks-c-5601-1989", "csksc56011987"},
+	{"iso-ir-14", "iso646-jp", "jis-c6220-1969-ro", "jp", "csiso14jisc6220ro"},
+	{"iso-ir-159", "jis-x0212", "jis-x0212-1990", "jis-x0212.1990-0", "x0212", "csiso159jisx02121990"},
+	{"iso-ir-166", "tis-620", "tis620", "tis620-0", "tis620.2529-1", "tis620.2533-0", "tis620.2533-1"},
+	{"iso-ir-230", "tds565"},
+	{"iso-ir-87", "jis0208", "jis-c6226-1983", "jis-x0208", "jis-x0208-1983", "jis-x0208-1990", "x0208", "csiso87jisx0208"},
+	{"java"},
+	{"jisx0201-1976", "jis-x0201", "x0201", "cshalfwidthkatakana"},
+	{"koi8-r", "cskoi8r"},
+	{"koi8-ru"},
+	{"koi8-t"},
+	{"koi8-u"},
+	{"kz-1048", "rk1048", "strk1048-2002", "cskz1048"},
+	{"macarabic"},
+	{"maccentraleurope"},
+	{"maccroatian"},
+	{"maccyrillic"},
+	{"macgreek"},
+	{"machebrew"},
+	{"maciceland"},
+	{"mac", "macintosh", "macroman", "csmacintosh"},
+	{"macromania"},
+	{"macthai"},
+	{"macturkish"},
+	{"macukraine"},
+	{"ms-kanji", "shift-jis", "shift-jis", "sjis", "csshiftjis"},
+	{"	MS-Windows", "Japanese", "(cp932)"},
+	{"mulelao-1"},
+	{"nextstep"},
+	{"riscos-latin1"},
+	{"shift-jis-2004", "shift-jisx0213"},
+	{"tcvn", "tcvn-5712", "tcvn5712-1", "tcvn5712-1:1993"},
+	{"ucs-2be", "unicode-1-1", "unicodebig", "csunicode11"},
+	{"ucs-2-internal"},
+	{"ucs-2le", "unicodelittle"},
+	{"ucs-2-swapped"},
+	{"ucs-4be"},
+	{"ucs-4-internal"},
+	{"ucs-4le"},
+	{"ucs-4-swapped"},
+	{"unicode-1-1-utf-7", "utf-7", "csunicode11utf7"},
+	{"utf-16"},
+	{"utf-16be"},
+	{"utf-16le"},
+	{"utf-32"},
+	{"utf-32be"},
+	{"utf-32le"},
+	{"utf-8"},
+	{"utf-8-mac", "utf8-mac"},
+	{"viscii", "viscii1.1-1", "csviscii"},
+	{"windows-31j", "cp932"},
+}

vendor/github.com/paulrosania/go-charset/charset/local.go

@@ -0,0 +1,162 @@
+package charset
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"sync"
+)
+
+var (
+	readLocalCharsetsOnce sync.Once
+	localCharsets         = make(map[string]*localCharset)
+)
+
+type localCharset struct {
+	Charset
+	arg string
+	*class
+}
+
+// A class of character sets.
+// Each class can be instantiated with an argument specified in the config file.
+// Many character sets can use a single class.
+type class struct {
+	from, to func(arg string) (Translator, error)
+}
+
+// The set of classes, indexed by class name.
+var classes = make(map[string]*class)
+
+func registerClass(charset string, from, to func(arg string) (Translator, error)) {
+	classes[charset] = &class{from, to}
+}
+
+type localFactory struct{}
+
+func (f localFactory) TranslatorFrom(name string) (Translator, error) {
+	f.init()
+	name = NormalizedName(name)
+	cs := localCharsets[name]
+	if cs == nil {
+		return nil, fmt.Errorf("character set %q not found", name)
+	}
+	if cs.from == nil {
+		return nil, fmt.Errorf("cannot translate from %q", name)
+	}
+	return cs.from(cs.arg)
+}
+
+func (f localFactory) TranslatorTo(name string) (Translator, error) {
+	f.init()
+	name = NormalizedName(name)
+	cs := localCharsets[name]
+	if cs == nil {
+		return nil, fmt.Errorf("character set %q not found", name)
+	}
+	if cs.to == nil {
+		return nil, fmt.Errorf("cannot translate to %q", name)
+	}
+	return cs.to(cs.arg)
+}
+
+func (f localFactory) Names() []string {
+	f.init()
+	var names []string
+	for name, cs := range localCharsets {
+		// add names only for non-aliases.
+		if localCharsets[cs.Name] == cs {
+			names = append(names, name)
+		}
+	}
+	return names
+}
+
+func (f localFactory) Info(name string) *Charset {
+	f.init()
+	lcs := localCharsets[NormalizedName(name)]
+	if lcs == nil {
+		return nil
+	}
+	// copy the charset info so that callers can't mess with it.
+	cs := lcs.Charset
+	return &cs
+}
+
+func (f localFactory) init() {
+	readLocalCharsetsOnce.Do(readLocalCharsets)
+}
+
+// charsetEntry is the data structure for one entry in the JSON config file.
+// If Alias is non-empty, it should be the canonical name of another
+// character set; otherwise Class should be the name
+// of an entry in classes, and Arg is the argument for
+// instantiating it.
+type charsetEntry struct {
+	Aliases []string
+	Desc    string
+	Class   string
+	Arg     string
+}
+
+// readCharsets reads the JSON config file.
+// It's done once only, when first needed.
+func readLocalCharsets() {
+	csdata, err := readFile("charsets.json")
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "charset: cannot open \"charsets.json\": %v\n", err)
+		return
+	}
+
+	var entries map[string]charsetEntry
+	err = json.Unmarshal(csdata, &entries)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "charset: cannot decode config file: %v\n", err)
+	}
+	for name, e := range entries {
+		class := classes[e.Class]
+		if class == nil {
+			continue
+		}
+		name = NormalizedName(name)
+		for i, a := range e.Aliases {
+			e.Aliases[i] = NormalizedName(a)
+		}
+		cs := &localCharset{
+			Charset: Charset{
+				Name:    name,
+				Aliases: e.Aliases,
+				Desc:    e.Desc,
+				NoFrom:  class.from == nil,
+				NoTo:    class.to == nil,
+			},
+			arg:   e.Arg,
+			class: class,
+		}
+		localCharsets[cs.Name] = cs
+		for _, a := range cs.Aliases {
+			localCharsets[a] = cs
+		}
+	}
+}
+
+// A general cache store that local character set translators
+// can use for persistent storage of data.
+var (
+	cacheMutex sync.Mutex
+	cacheStore = make(map[interface{}]interface{})
+)
+
+func cache(key interface{}, f func() (interface{}, error)) (interface{}, error) {
+	cacheMutex.Lock()
+	defer cacheMutex.Unlock()
+	if x := cacheStore[key]; x != nil {
+		return x, nil
+	}
+	x, err := f()
+	if err != nil {
+		return nil, err
+	}
+	cacheStore[key] = x
+	return x, err
+}

vendor/github.com/paulrosania/go-charset/charset/utf16.go

@@ -0,0 +1,110 @@
+package charset
+
+import (
+	"encoding/binary"
+	"errors"
+	"unicode/utf8"
+)
+
+func init() {
+	registerClass("utf16", fromUTF16, toUTF16)
+}
+
+type translateFromUTF16 struct {
+	first   bool
+	endian  binary.ByteOrder
+	scratch []byte
+}
+
+func (p *translateFromUTF16) Translate(data []byte, eof bool) (int, []byte, error) {
+	data = data[0 : len(data)&^1] // round to even number of bytes.
+	if len(data) < 2 {
+		return 0, nil, nil
+	}
+	n := 0
+	if p.first && p.endian == nil {
+		switch binary.BigEndian.Uint16(data) {
+		case 0xfeff:
+			p.endian = binary.BigEndian
+			data = data[2:]
+			n += 2
+		case 0xfffe:
+			p.endian = binary.LittleEndian
+			data = data[2:]
+			n += 2
+		default:
+			p.endian = guessEndian(data)
+		}
+		p.first = false
+	}
+
+	p.scratch = p.scratch[:0]
+	for ; len(data) > 0; data = data[2:] {
+		p.scratch = appendRune(p.scratch, rune(p.endian.Uint16(data)))
+		n += 2
+	}
+	return n, p.scratch, nil
+}
+
+func guessEndian(data []byte) binary.ByteOrder {
+	// XXX TODO
+	return binary.LittleEndian
+}
+
+type translateToUTF16 struct {
+	first   bool
+	endian  binary.ByteOrder
+	scratch []byte
+}
+
+func (p *translateToUTF16) Translate(data []byte, eof bool) (int, []byte, error) {
+	p.scratch = ensureCap(p.scratch[:0], (len(data)+1)*2)
+	if p.first {
+		p.scratch = p.scratch[0:2]
+		p.endian.PutUint16(p.scratch, 0xfeff)
+		p.first = false
+	}
+	n := 0
+	for len(data) > 0 {
+		if !utf8.FullRune(data) && !eof {
+			break
+		}
+		r, size := utf8.DecodeRune(data)
+		// TODO if r > 65535?
+
+		slen := len(p.scratch)
+		p.scratch = p.scratch[0 : slen+2]
+		p.endian.PutUint16(p.scratch[slen:], uint16(r))
+		data = data[size:]
+		n += size
+	}
+	return n, p.scratch, nil
+}
+
+func getEndian(arg string) (binary.ByteOrder, error) {
+	switch arg {
+	case "le":
+		return binary.LittleEndian, nil
+	case "be":
+		return binary.BigEndian, nil
+	case "":
+		return nil, nil
+	}
+	return nil, errors.New("charset: unknown utf16 endianness")
+}
+
+func fromUTF16(arg string) (Translator, error) {
+	endian, err := getEndian(arg)
+	if err != nil {
+		return nil, err
+	}
+	return &translateFromUTF16{first: true, endian: endian}, nil
+}
+
+func toUTF16(arg string) (Translator, error) {
+	endian, err := getEndian(arg)
+	if err != nil {
+		return nil, err
+	}
+	return &translateToUTF16{first: false, endian: endian}, nil
+}

vendor/github.com/paulrosania/go-charset/charset/utf8.go

@@ -0,0 +1,51 @@
+package charset
+
+import (
+	"unicode/utf8"
+)
+
+func init() {
+	registerClass("utf8", toUTF8, toUTF8)
+}
+
+type translateToUTF8 struct {
+	scratch []byte
+}
+
+var errorBytes = []byte(string(utf8.RuneError))
+
+const errorRuneLen = len(string(utf8.RuneError))
+
+func (p *translateToUTF8) Translate(data []byte, eof bool) (int, []byte, error) {
+	p.scratch = ensureCap(p.scratch, (len(data))*errorRuneLen)
+	buf := p.scratch[:0]
+	for i := 0; i < len(data); {
+		// fast path for ASCII
+		if b := data[i]; b < utf8.RuneSelf {
+			buf = append(buf, b)
+			i++
+			continue
+		}
+		_, size := utf8.DecodeRune(data[i:])
+		if size == 1 {
+			if !eof && !utf8.FullRune(data) {
+				// When DecodeRune has converted only a single
+				// byte, we know there must be some kind of error
+				// because we know the byte's not ASCII.
+				// If we aren't at EOF, and it's an incomplete
+				// rune encoding, then we return to process
+				// the final bytes in a subsequent call.
+				return i, buf, nil
+			}
+			buf = append(buf, errorBytes...)
+		} else {
+			buf = append(buf, data[i:i+size]...)
+		}
+		i += size
+	}
+	return len(data), buf, nil
+}
+
+func toUTF8(arg string) (Translator, error) {
+	return new(translateToUTF8), nil
+}

vendor/github.com/paulrosania/go-charset/cmd/tcs/tcs.go

@@ -0,0 +1,103 @@
+package main
+
+import (
+	"bytes"
+	"flag"
+	"fmt"
+	"github.com/paulrosania/go-charset/charset"
+	_ "github.com/paulrosania/go-charset/charset/iconv"
+	"io"
+	"os"
+	"strings"
+)
+
+var listFlag = flag.Bool("l", false, "list available character sets")
+var verboseFlag = flag.Bool("v", false, "list more information")
+var fromCharset = flag.String("f", "utf-8", "translate from this character set")
+var toCharset = flag.String("t", "utf-8", "translate to this character set")
+
+func main() {
+	flag.Usage = func() {
+		fmt.Fprintf(os.Stderr, "usage: tcs [-l] [-v] [charset]\n")
+		fmt.Fprintf(os.Stderr, "\ttcs [-f charset] [-t charset] [file]\n")
+	}
+	flag.Parse()
+	if *listFlag {
+		cs := ""
+		switch flag.NArg() {
+		case 1:
+			cs = flag.Arg(0)
+		case 0:
+		default:
+			flag.Usage()
+		}
+		listCharsets(*verboseFlag, cs)
+		return
+	}
+	var f *os.File
+	switch flag.NArg() {
+	case 0:
+		f = os.Stdin
+	case 1:
+		var err error
+		f, err = os.Open(flag.Arg(0))
+		if err != nil {
+			fatalf("cannot open %q: %v", err)
+		}
+	}
+	r, err := charset.NewReader(*fromCharset, f)
+	if err != nil {
+		fatalf("cannot translate from %q: %v", *fromCharset, err)
+	}
+	w, err := charset.NewWriter(*toCharset, os.Stdout)
+	if err != nil {
+		fatalf("cannot translate to %q: ", err)
+	}
+	_, err = io.Copy(w, r)
+	if err != nil {
+		fatalf("%v", err)
+	}
+}
+
+func listCharsets(verbose bool, csname string) {
+	var buf bytes.Buffer
+	if !verbose {
+		if csname != "" {
+			cs := charset.Info(csname)
+			if cs == nil {
+				fatalf("no such charset %q", csname)
+			}
+			fmt.Fprintf(&buf, "%s %s\n", cs.Name, strings.Join(cs.Aliases, " "))
+		} else {
+			fmt.Fprintf(&buf, "%v\n", strings.Join(charset.Names(), " "))
+		}
+	} else {
+		var charsets []*charset.Charset
+		if csname != "" {
+			cs := charset.Info(csname)
+			if cs == nil {
+				fatalf("no such charset %q", csname)
+			}
+			charsets = []*charset.Charset{cs}
+		} else {
+			for _, name := range charset.Names() {
+				if cs := charset.Info(name); cs != nil {
+					charsets = append(charsets, cs)
+				}
+			}
+		}
+		for _, cs := range charsets {
+			fmt.Fprintf(&buf, "%s %s\n", cs.Name, strings.Join(cs.Aliases, " "))
+			if cs.Desc != "" {
+				fmt.Fprintf(&buf, "\t%s\n", cs.Desc)
+			}
+		}
+	}
+	os.Stdout.Write(buf.Bytes())
+}
+
+func fatalf(f string, a ...interface{}) {
+	s := fmt.Sprintf(f, a...)
+	fmt.Fprintf(os.Stderr, "%s\n", s)
+	os.Exit(2)
+}

vendor/github.com/paulrosania/go-charset/data/data_charsets.json.go

@@ -0,0 +1,18 @@
+// This file is automatically generated by generate-charset-data.
+// Do not hand-edit.
+
+package data
+
+import (
+	"github.com/paulrosania/go-charset/charset"
+	"io"
+	"io/ioutil"
+	"strings"
+)
+
+func init() {
+	charset.RegisterDataFile("charsets.json", func() (io.ReadCloser, error) {
+		r := strings.NewReader("{\n\"8bit\": {\n\t\"Desc\": \"raw 8-bit data\",\n\t\"Class\": \"8bit\",\n\t\"Comment\": \"special class for raw 8bit data that has been converted to utf-8\"\n},\n\"big5\": {\n\t\"Desc\": \"Big 5 (HKU)\",\n\t\"Class\": \"big5\",\n\t\"Comment\": \"Traditional Chinese\"\n},\n\"euc-jp\": {\n\t\"Aliases\":[\"x-euc-jp\"],\n\t\"Desc\": \"Japanese Extended UNIX Code\",\n\t\"Class\": \"euc-jp\"\n},\n\"gb2312\": {\n\t\"Aliases\":[\"iso-ir-58\", \"chinese\", \"gb_2312-80\"],\n\t\"Desc\": \"Chinese mixed one byte\",\n\t\"Class\": \"gb2312\"\n},\n\"ibm437\": {\n\t\"Aliases\":[\"437\", \"cp437\"],\n\t\"Desc\": \"IBM PC: CP 437\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"ibm437.cp\",\n\t\"Comment\": \"originally from jhelling@cs.ruu.nl (Jeroen Hellingman)\"\n},\n\"ibm850\": {\n\t\"Aliases\":[\"850\", \"cp850\"],\n\t\"Desc\": \"IBM PS/2: CP 850\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"ibm850.cp\",\n\t\"Comment\": \"originally from jhelling@cs.ruu.nl (Jeroen Hellingman)\"\n},\n\"ibm866\": {\n\t\"Aliases\":[\"cp866\", \"866\"],\n\t\"Desc\": \"Russian MS-DOS CP 866\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"ibm866.cp\"\n},\n\"iso-8859-1\": {\n\t\"Aliases\":[\"iso-ir-100\", \"ibm819\", \"l1\", \"iso8859-1\", \"iso-latin-1\", \"iso_8859-1:1987\", \"cp819\", \"iso_8859-1\", \"iso8859_1\", \"latin1\"],\n\t\"Desc\": \"Latin-1\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"iso-8859-1.cp\"\n},\n\"iso-8859-10\": {\n\t\"Aliases\":[\"iso_8859-10:1992\", \"l6\", \"iso-ir-157\", \"latin6\"],\n\t\"Desc\": \"Latin-6\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"iso-8859-10.cp\",\n\t\"Comment\": \"originally from dkuug.dk:i18n/charmaps/ISO_8859-10:1993\"\n},\n\"iso-8859-15\": {\n\t\"Aliases\":[\"l9-iso-8859-15\", \"latin9\"],\n\t\"Desc\": \"Latin-9\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"iso-8859-15.cp\"\n},\n\"iso-8859-2\": {\n\t\"Aliases\":[\"iso-ir-101\", \"iso_8859-2:1987\", \"l2\", \"iso_8859-2\", \"latin2\"],\n\t\"Desc\": \"Latin-2\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"iso-8859-2.cp\"\n},\n\"iso-8859-3\": {\n\t\"Aliases\":[\"iso-ir-109\", \"l3\", \"iso_8859-3:1988\", \"iso_8859-3\", \"latin3\"],\n\t\"Desc\": \"Latin-3\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"iso-8859-3.cp\"\n},\n\"iso-8859-4\": {\n\t\"Aliases\":[\"iso-ir-110\", \"iso_8859-4:1988\", \"l4\", \"iso_8859-4\", \"latin4\"],\n\t\"Desc\": \"Latin-4\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"iso-8859-4.cp\"\n},\n\"iso-8859-5\": {\n\t\"Aliases\":[\"cyrillic\", \"iso_8859-5\", \"iso-ir-144\", \"iso_8859-5:1988\"],\n\t\"Desc\": \"Part 5 (Cyrillic)\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"iso-8859-5.cp\"\n},\n\"iso-8859-6\": {\n\t\"Aliases\":[\"ecma-114\", \"iso_8859-6:1987\", \"arabic\", \"iso_8859-6\", \"asmo-708\", \"iso-ir-127\"],\n\t\"Desc\": \"Part 6 (Arabic)\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"iso-8859-6.cp\"\n},\n\"iso-8859-7\": {\n\t\"Aliases\":[\"greek8\", \"elot_928\", \"ecma-118\", \"greek\", \"iso_8859-7\", \"iso_8859-7:1987\", \"iso-ir-126\"],\n\t\"Desc\": \"Part 7 (Greek)\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"iso-8859-7.cp\"\n},\n\"iso-8859-8\": {\n\t\"Aliases\":[\"iso_8859-8:1988\", \"hebrew\", \"iso_8859-8\", \"iso-ir-138\"],\n\t\"Desc\": \"Part 8 (Hebrew)\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"iso-8859-8.cp\"\n},\n\"iso-8859-9\": {\n\t\"Aliases\":[\"l5\", \"iso_8859-9:1989\", \"iso_8859-9\", \"iso-ir-148\", \"latin5\"],\n\t\"Desc\": \"Latin-5\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"iso-8859-9.cp\"\n},\n\"koi8-r\": {\n\t\"Desc\": \"KOI8-R (RFC1489)\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"koi8-r.cp\"\n},\n\"shift_jis\": {\n\t\"Aliases\":[\"sjis\", \"ms_kanji\", \"x-sjis\"],\n\t\"Desc\": \"Shift-JIS Japanese\",\n\t\"Class\": \"cp932\",\n\t\"Arg\": \"shiftjis\"\n},\n\"us-ascii\": {\n\t\"Aliases\":[\"ascii\"],\n\t\"Desc\": \"US-ASCII (RFC20)\",\n\t\"Class\": \"ascii\"\n},\n\"utf-16\": {\n\t\"Aliases\":[\"utf16\"],\n\t\"Desc\": \"Unicode UTF-16\",\n\t\"Class\": \"utf16\"\n},\n\"utf-16be\": {\n\t\"Aliases\":[\"utf16be\"],\n\t\"Desc\": \"Unicode UTF-16 big endian\",\n\t\"Class\": \"utf16\",\n\t\"Arg\": \"be\"\n},\n\"utf-16le\": {\n\t\"Aliases\":[\"utf16le\"],\n\t\"Desc\": \"Unicode UTF-16 little endian\",\n\t\"Class\": \"utf16\",\n\t\"Arg\": \"le\"\n},\n\"utf-8\": {\n\t\"Aliases\":[\"utf8\"],\n\t\"Desc\": \"Unicode UTF-8\",\n\t\"Class\": \"utf8\"\n},\n\"windows-1250\": {\n\t\"Desc\": \"MS Windows CP 1250 (Central Europe)\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"windows-1250.cp\"\n},\n\"windows-1251\": {\n\t\"Desc\": \"MS Windows CP 1251 (Cyrillic)\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"windows-1251.cp\"\n},\n\"windows-1252\": {\n\t\"Desc\": \"MS Windows CP 1252 (Latin 1)\",\n\t\"Class\": \"cp\",\n\t\"Arg\": \"windows-1252.cp\"\n},\n\"windows-31j\": {\n\t\"Aliases\":[\"cp932\"],\n\t\"Desc\": \"MS-Windows Japanese (cp932)\",\n\t\"Class\": \"cp932\",\n\t\"Arg\": \"cp932\"\n}\n}\n")
+		return ioutil.NopCloser(r), nil
+	})
+}

vendor/github.com/paulrosania/go-charset/data/data_ibm437.cp.go

@@ -0,0 +1,18 @@
+// This file is automatically generated by generate-charset-data.
+// Do not hand-edit.
+
+package data
+
+import (
+	"github.com/paulrosania/go-charset/charset"
+	"io"
+	"io/ioutil"
+	"strings"
+)
+
+func init() {
+	charset.RegisterDataFile("ibm437.cp", func() (io.ReadCloser, error) {
+		r := strings.NewReader("\x00\x01\x02\x03\x04\x05\x06\a\b\t\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\u007fÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞∅∈∩≡±≥≤⌠⌡÷≈°•·√ⁿ²∎\u00a0")
+		return ioutil.NopCloser(r), nil
+	})
+}

vendor/github.com/paulrosania/go-charset/data/data_ibm850.cp.go

@@ -0,0 +1,18 @@
+// This file is automatically generated by generate-charset-data.
+// Do not hand-edit.
+
+package data
+
+import (
+	"github.com/paulrosania/go-charset/charset"
+	"io"
+	"io/ioutil"
+	"strings"
+)
+
+func init() {
+	charset.RegisterDataFile("ibm850.cp", func() (io.ReadCloser, error) {
+		r := strings.NewReader("\x00\x01\x02\x03\x04\x05\x06\a\b\t\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\u007fÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø׃áíóúñѪº¿®¬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ðÐÊËÈıÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµþÞÚÛÙýݯ´\u00ad±‗¾¶§÷¸°¨·¹³²∎\u00a0")
+		return ioutil.NopCloser(r), nil
+	})
+}

vendor/github.com/paulrosania/go-charset/data/data_ibm866.cp.go

@@ -0,0 +1,18 @@
+// This file is automatically generated by generate-charset-data.
+// Do not hand-edit.
+
+package data
+
+import (
+	"github.com/paulrosania/go-charset/charset"
+	"io"
+	"io/ioutil"
+	"strings"
+)
+
+func init() {
+	charset.RegisterDataFile("ibm866.cp", func() (io.ReadCloser, error) {
+		r := strings.NewReader("\x00\x01\x02\x03\x04\x05\x06\a\b\t\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\u007fАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп<D0BE><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>рстуфхцчшщъыьэюяЁё<D081><D191><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>")
+		return ioutil.NopCloser(r), nil
+	})
+}

vendor/github.com/paulrosania/go-charset/data/data_iso-8859-1.cp.go

@@ -0,0 +1,18 @@
+// This file is automatically generated by generate-charset-data.
+// Do not hand-edit.
+
+package data
+
+import (
+	"github.com/paulrosania/go-charset/charset"
+	"io"
+	"io/ioutil"
+	"strings"
+)
+
+func init() {
+	charset.RegisterDataFile("iso-8859-1.cp", func() (io.ReadCloser, error) {
+		r := strings.NewReader("\x00\x01\x02\x03\x04\x05\x06\a\b\t\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\u007f\u0080\u0081\u0082\u0083\u0084\u0085\u0086\u0087\u0088\u0089\u008a\u008b\u008c\u008d\u008e\u008f\u0090\u0091\u0092\u0093\u0094\u0095\u0096\u0097\u0098\u0099\u009a\u009b\u009c\u009d\u009e\u009f\u00a0¡¢£¤¥¦§¨©ª«¬\u00ad®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ")
+		return ioutil.NopCloser(r), nil
+	})
+}

vendor/github.com/paulrosania/go-charset/data/data_iso-8859-10.cp.go

@@ -0,0 +1,18 @@
+// This file is automatically generated by generate-charset-data.
+// Do not hand-edit.
+
+package data
+
+import (
+	"github.com/paulrosania/go-charset/charset"
+	"io"
+	"io/ioutil"
+	"strings"
+)
+
+func init() {
+	charset.RegisterDataFile("iso-8859-10.cp", func() (io.ReadCloser, error) {
+		r := strings.NewReader("\x00\x01\x02\x03\x04\x05\x06\a\b\t\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\u007f\u0080\u0081\u0082\u0083\u0084\u0085\u0086\u0087\u0088\u0089\u008a\u008b\u008c\u008d\u008e\u008f\u0090\u0091\u0092\u0093\u0094\u0095\u0096\u0097\u0098\u0099\u009a\u009b\u009c\u009d\u009e\u009f\u00a0ĄĒĢĪĨĶ§ĻĐŠŦŽ\u00adŪŊ°ąēģīĩķ·ļĐšŧž—ūŋĀÁÂÃÄÅÆĮČÉĘËĖÍÎÏÐŅŌÓÔÕÖŨØŲÚÛÜÝÞßāáâãäåæįčéęëėíîïðņōóôõöũøųúûüýþĸ")
+		return ioutil.NopCloser(r), nil
+	})
+}

vendor/github.com/paulrosania/go-charset/data/data_iso-8859-15.cp.go

@@ -0,0 +1,18 @@
+// This file is automatically generated by generate-charset-data.
+// Do not hand-edit.
+
+package data
+
+import (
+	"github.com/paulrosania/go-charset/charset"
+	"io"
+	"io/ioutil"
+	"strings"
+)
+
+func init() {
+	charset.RegisterDataFile("iso-8859-15.cp", func() (io.ReadCloser, error) {
+		r := strings.NewReader("\x00\x01\x02\x03\x04\x05\x06\a\b\t\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\u007f\u0080\u0081\u0082\u0083\u0084\u0085\u0086\u0087\u0088\u0089\u008a\u008b\u008c\u008d\u008e\u008f\u0090\u0091\u0092\u0093\u0094\u0095\u0096\u0097\u0098\u0099\u009a\u009b\u009c\u009d\u009e\u009f\u00a0¡¢£€¥Š§š©ª«¬\u00ad®¯°±²³Žµ¶·ž¹º»ŒœŸ¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ")
+		return ioutil.NopCloser(r), nil
+	})
+}

vendor/github.com/paulrosania/go-charset/data/data_iso-8859-2.cp.go

@@ -0,0 +1,18 @@
+// This file is automatically generated by generate-charset-data.
+// Do not hand-edit.
+
+package data
+
+import (
+	"github.com/paulrosania/go-charset/charset"
+	"io"
+	"io/ioutil"
+	"strings"
+)
+
+func init() {
+	charset.RegisterDataFile("iso-8859-2.cp", func() (io.ReadCloser, error) {
+		r := strings.NewReader("\x00\x01\x02\x03\x04\x05\x06\a\b\t\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\u007f\u0080\u0081\u0082\u0083\u0084\u0085\u0086\u0087\u0088\u0089\u008a\u008b\u008c\u008d\u008e\u008f\u0090\u0091\u0092\u0093\u0094\u0095\u0096\u0097\u0098\u0099\u009a\u009b\u009c\u009d\u009e\u009f\u00a0Ą˘Ł¤ĽŚ§¨ŠŞŤŹ\u00adŽŻ°ą˛ł´ľśˇ¸šşťź˝žżŔÁÂĂÄĹĆÇČÉĘËĚÍÎĎĐŃŇÓÔŐÖ×ŘŮÚŰÜÝŢßŕáâăäĺćçčéęëěíîďđńňóôőö÷řůúűüýţ˙")
+		return ioutil.NopCloser(r), nil
+	})
+}

vendor/github.com/paulrosania/go-charset/data/data_iso-8859-3.cp.go

@@ -0,0 +1,18 @@
+// This file is automatically generated by generate-charset-data.
+// Do not hand-edit.
+
+package data
+
+import (
+	"github.com/paulrosania/go-charset/charset"
+	"io"
+	"io/ioutil"
+	"strings"
+)
+
+func init() {
+	charset.RegisterDataFile("iso-8859-3.cp", func() (io.ReadCloser, error) {
+		r := strings.NewReader("\x00\x01\x02\x03\x04\x05\x06\a\b\t\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\u007f\u0080\u0081\u0082\u0083\u0084\u0085\u0086\u0087\u0088\u0089\u008a\u008b\u008c\u008d\u008e\u008f\u0090\u0091\u0092\u0093\u0094\u0095\u0096\u0097\u0098\u0099\u009a\u009b\u009c\u009d\u009e\u009f\u00a0Ħ˘£¤<C2A3>Ĥ§¨İŞĞĴ\u00ad<61>Ż°ħ²³´µĥ·¸ışğĵ½<C4B5>żÀÁÂ<C381>ÄĊĈÇÈÉÊËÌÍÎÏ<C38E>ÑÒÓÔĠÖ×ĜÙÚÛÜŬŜßàáâ<C3A1>äċĉçèéêëìíîï<C3AE>ñòóôġö÷ĝùúûüŭŝ˙")
+		return ioutil.NopCloser(r), nil
+	})
+}

vendor/github.com/paulrosania/go-charset/data/data_iso-8859-4.cp.go

@@ -0,0 +1,18 @@
+// This file is automatically generated by generate-charset-data.
+// Do not hand-edit.
+
+package data
+
+import (
+	"github.com/paulrosania/go-charset/charset"
+	"io"
+	"io/ioutil"
+	"strings"
+)
+
+func init() {
+	charset.RegisterDataFile("iso-8859-4.cp", func() (io.ReadCloser, error) {
+		r := strings.NewReader("\x00\x01\x02\x03\x04\x05\x06\a\b\t\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\u007f\u0080\u0081\u0082\u0083\u0084\u0085\u0086\u0087\u0088\u0089\u008a\u008b\u008c\u008d\u008e\u008f\u0090\u0091\u0092\u0093\u0094\u0095\u0096\u0097\u0098\u0099\u009a\u009b\u009c\u009d\u009e\u009f\u00a0ĄĸŖ¤ĨĻ§¨ŠĒĢŦ\u00adŽ¯°ą˛ŗ´ĩļˇ¸šēģŧŊžŋĀÁÂÃÄÅÆĮČÉĘËĖÍÎĪĐŅŌĶÔÕÖ×ØŲÚÛÜŨŪßāáâãäåæįčéęëėíîīđņōķôõö÷øųúûüũū˙")
+		return ioutil.NopCloser(r), nil
+	})
+}

vendor/github.com/paulrosania/go-charset/data/data_iso-8859-5.cp.go

@@ -0,0 +1,18 @@
+// This file is automatically generated by generate-charset-data.
+// Do not hand-edit.
+
+package data
+
+import (
+	"github.com/paulrosania/go-charset/charset"
+	"io"
+	"io/ioutil"
+	"strings"
+)
+
+func init() {
+	charset.RegisterDataFile("iso-8859-5.cp", func() (io.ReadCloser, error) {
+		r := strings.NewReader("\x00\x01\x02\x03\x04\x05\x06\a\b\t\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\u007f\u0080\u0081\u0082\u0083\u0084\u0085\u0086\u0087\u0088\u0089\u008a\u008b\u008c\u008d\u008e\u008f\u0090\u0091\u0092\u0093\u0094\u0095\u0096\u0097\u0098\u0099\u009a\u009b\u009c\u009d\u009e\u009f\u00a0ЁЂЃЄЅІЇЈЉЊЋЌ\u00adЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя№ёђѓєѕіїјљњћќ§ўџ")
+		return ioutil.NopCloser(r), nil
+	})
+}

vendor/github.com/paulrosania/go-charset/data/data_iso-8859-6.cp.go

@@ -0,0 +1,18 @@
+// This file is automatically generated by generate-charset-data.
+// Do not hand-edit.
+
+package data
+
+import (
+	"github.com/paulrosania/go-charset/charset"
+	"io"
+	"io/ioutil"
+	"strings"
+)
+
+func init() {
+	charset.RegisterDataFile("iso-8859-6.cp", func() (io.ReadCloser, error) {
+		r := strings.NewReader("\x00\x01\x02\x03\x04\x05\x06\a\b\t\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\u007f\u0080\u0081\u0082\u0083\u0084\u0085\u0086\u0087\u0088\u0089\u008a\u008b\u008c\u008d\u008e\u008f\u0090\u0091\u0092\u0093\u0094\u0095\u0096\u0097\u0098\u0099\u009a\u009b\u009c\u009d\u009e\u009f\u00a0<61><30><EFBFBD>¤<EFBFBD><C2A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>،\u00ad<61><64><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>؛<EFBFBD><D89B><EFBFBD>؟<EFBFBD>ءآأؤإئابةتثجحخدذرزسشصضطظعغ<D8B9><D8BA><EFBFBD><EFBFBD><EFBFBD>ـفقكلمنهوىيًٌٍَُِّْ<D991><D992><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>")
+		return ioutil.NopCloser(r), nil
+	})
+}

vendor/github.com/paulrosania/go-charset/data/data_iso-8859-7.cp.go

@@ -0,0 +1,18 @@
+// This file is automatically generated by generate-charset-data.
+// Do not hand-edit.
+
+package data
+
+import (
+	"github.com/paulrosania/go-charset/charset"
+	"io"
+	"io/ioutil"
+	"strings"
+)
+
+func init() {
+	charset.RegisterDataFile("iso-8859-7.cp", func() (io.ReadCloser, error) {
+		r := strings.NewReader("\x00\x01\x02\x03\x04\x05\x06\a\b\t\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\u007f\u0080\u0081\u0082\u0083\u0084\u0085\u0086\u0087\u0088\u0089\u008a\u008b\u008c\u008d\u008e\u008f\u0090\u0091\u0092\u0093\u0094\u0095\u0096\u0097\u0098\u0099\u009a\u009b\u009c\u009d\u009e\u009f\u00a0‘’£<E28099><C2A3>¦§¨©<C2A8>«¬\u00ad<61>―°±²³΄΅Ά·ΈΉΊ»Ό½ΎΏΐΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡ<CEA0>ΣΤΥΦΧΨΩΪΫάέήίΰαβγδεζηθικλμνξοπρςστυφχψωϊϋόύώ<CF8D>")
+		return ioutil.NopCloser(r), nil
+	})
+}

vendor/github.com/paulrosania/go-charset/data/data_iso-8859-8.cp.go

@@ -0,0 +1,18 @@
+// This file is automatically generated by generate-charset-data.
+// Do not hand-edit.
+
+package data
+
+import (
+	"github.com/paulrosania/go-charset/charset"
+	"io"
+	"io/ioutil"
+	"strings"
+)
+
+func init() {
+	charset.RegisterDataFile("iso-8859-8.cp", func() (io.ReadCloser, error) {
+		r := strings.NewReader("\x00\x01\x02\x03\x04\x05\x06\a\b\t\n\v\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\u007f\u0080\u0081\u0082\u0083\u0084\u0085\u0086\u0087\u0088\u0089\u008a\u008b\u008c\u008d\u008e\u008f\u0090\u0091\u0092\u0093\u0094\u0095\u0096\u0097\u0098\u0099\u009a\u009b\u009c\u009d\u009e\u009f\u00a0<61>¢£¤¥¦§¨©×«¬\u00ad®‾°±²³´µ¶·¸¹÷»¼½¾<C2BD><C2BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>‗אבגדהוזחטיךכלםמןנסעףפץצקרשת<D7A9><D7AA><EFBFBD><EFBFBD><EFBFBD>")
+		return ioutil.NopCloser(r), nil
+	})
+}