Vendor libs

6 files changed, 1285 insertions, 0 deletions

diff --git a/vendor/github.com/42wim/matterbridge-plus/bridge/LICENSE b/vendor/github.com/42wim/matterbridge-plus/bridge/LICENSE
new file mode 100644
index 00000000..8f71f43f
--- /dev/null
+++ b/vendor/github.com/42wim/matterbridge-plus/bridge/LICENSE
@@ -0,0 +1,202 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
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diff --git a/vendor/github.com/42wim/matterbridge-plus/bridge/bridge.go b/vendor/github.com/42wim/matterbridge-plus/bridge/bridge.go
new file mode 100644
index 00000000..ebd5456d
--- /dev/null
+++ b/vendor/github.com/42wim/matterbridge-plus/bridge/bridge.go
@@ -0,0 +1,441 @@
+package bridge
+
+import (
+	"crypto/tls"
+	"github.com/42wim/matterbridge-plus/matterclient"
+	"github.com/42wim/matterbridge/matterhook"
+	log "github.com/Sirupsen/logrus"
+	"github.com/peterhellberg/giphy"
+	ircm "github.com/sorcix/irc"
+	"github.com/thoj/go-ircevent"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+)
+
+//type Bridge struct {
+type MMhook struct {
+	mh *matterhook.Client
+}
+
+type MMapi struct {
+	mc    *matterclient.MMClient
+	mmMap map[string]string
+}
+
+type MMirc struct {
+	i       *irc.Connection
+	ircNick string
+	ircMap  map[string]string
+	names   map[string][]string
+}
+
+type MMMessage struct {
+	Text     string
+	Channel  string
+	Username string
+}
+
+type Bridge struct {
+	MMhook
+	MMapi
+	MMirc
+	*Config
+	kind string
+}
+
+type FancyLog struct {
+	irc *log.Entry
+	mm  *log.Entry
+}
+
+var flog FancyLog
+
+func initFLog() {
+	flog.irc = log.WithFields(log.Fields{"module": "irc"})
+	flog.mm = log.WithFields(log.Fields{"module": "mattermost"})
+}
+
+func NewBridge(name string, config *Config, kind string) *Bridge {
+	initFLog()
+	b := &Bridge{}
+	b.Config = config
+	b.kind = kind
+	b.ircNick = b.Config.IRC.Nick
+	b.ircMap = make(map[string]string)
+	b.MMirc.names = make(map[string][]string)
+	if kind == "legacy" {
+		if len(b.Config.Token) > 0 {
+			for _, val := range b.Config.Token {
+				b.ircMap[val.IRCChannel] = val.MMChannel
+			}
+		}
+
+		b.mh = matterhook.New(b.Config.Mattermost.URL,
+			matterhook.Config{Port: b.Config.Mattermost.Port, Token: b.Config.Mattermost.Token,
+				InsecureSkipVerify: b.Config.Mattermost.SkipTLSVerify,
+				BindAddress:        b.Config.Mattermost.BindAddress})
+	} else {
+		b.mmMap = make(map[string]string)
+		if len(b.Config.Channel) > 0 {
+			for _, val := range b.Config.Channel {
+				b.ircMap[val.IRC] = val.Mattermost
+				b.mmMap[val.Mattermost] = val.IRC
+			}
+		}
+		b.mc = matterclient.New(b.Config.Mattermost.Login, b.Config.Mattermost.Password,
+			b.Config.Mattermost.Team, b.Config.Mattermost.Server)
+		err := b.mc.Login()
+		if err != nil {
+			flog.mm.Fatal("can not connect", err)
+		}
+		b.mc.JoinChannel(b.Config.Mattermost.Channel)
+		if len(b.Config.Channel) > 0 {
+			for _, val := range b.Config.Channel {
+				b.mc.JoinChannel(val.Mattermost)
+			}
+		}
+		go b.mc.WsReceiver()
+	}
+	b.i = b.createIRC(name)
+	go b.handleMatter()
+	return b
+}
+
+func (b *Bridge) createIRC(name string) *irc.Connection {
+	i := irc.IRC(b.Config.IRC.Nick, b.Config.IRC.Nick)
+	i.UseTLS = b.Config.IRC.UseTLS
+	i.TLSConfig = &tls.Config{InsecureSkipVerify: b.Config.IRC.SkipTLSVerify}
+	if b.Config.IRC.Password != "" {
+		i.Password = b.Config.IRC.Password
+	}
+	i.AddCallback("*", b.handleOther)
+	i.Connect(b.Config.IRC.Server + ":" + strconv.Itoa(b.Config.IRC.Port))
+	return i
+}
+
+func (b *Bridge) handleNewConnection(event *irc.Event) {
+	b.ircNick = event.Arguments[0]
+	b.setupChannels()
+}
+
+func (b *Bridge) setupChannels() {
+	i := b.i
+	flog.irc.Info("Joining ", b.Config.IRC.Channel, " as ", b.ircNick)
+	i.Join(b.Config.IRC.Channel)
+	if b.kind == "legacy" {
+		for _, val := range b.Config.Token {
+			flog.irc.Info("Joining ", val.IRCChannel, " as ", b.ircNick)
+			i.Join(val.IRCChannel)
+		}
+	} else {
+		for _, val := range b.Config.Channel {
+			flog.irc.Info("Joining ", val.IRC, " as ", b.ircNick)
+			i.Join(val.IRC)
+		}
+	}
+	i.AddCallback("PRIVMSG", b.handlePrivMsg)
+	i.AddCallback("CTCP_ACTION", b.handlePrivMsg)
+	if b.Config.Mattermost.ShowJoinPart {
+		i.AddCallback("JOIN", b.handleJoinPart)
+		i.AddCallback("PART", b.handleJoinPart)
+	}
+}
+
+func (b *Bridge) handleIrcBotCommand(event *irc.Event) bool {
+	parts := strings.Fields(event.Message())
+	exp, _ := regexp.Compile("[:,]+$")
+	channel := event.Arguments[0]
+	command := ""
+	if len(parts) == 2 {
+		command = parts[1]
+	}
+	if exp.ReplaceAllString(parts[0], "") == b.ircNick {
+		switch command {
+		case "users":
+			usernames := b.mc.UsernamesInChannel(b.getMMChannel(channel))
+			sort.Strings(usernames)
+			b.i.Privmsg(channel, "Users on Mattermost: "+strings.Join(usernames, ", "))
+		default:
+			b.i.Privmsg(channel, "Valid commands are: [users, help]")
+		}
+		return true
+	}
+	return false
+}
+
+func (b *Bridge) ircNickFormat(nick string) string {
+	if nick == b.ircNick {
+		return nick
+	}
+	if b.Config.Mattermost.RemoteNickFormat == nil {
+		return "irc-" + nick
+	}
+	return strings.Replace(*b.Config.Mattermost.RemoteNickFormat, "{NICK}", nick, -1)
+}
+
+func (b *Bridge) handlePrivMsg(event *irc.Event) {
+	if b.handleIrcBotCommand(event) {
+		return
+	}
+	msg := ""
+	if event.Code == "CTCP_ACTION" {
+		msg = event.Nick + " "
+	}
+	msg += event.Message()
+	b.Send(b.ircNickFormat(event.Nick), msg, b.getMMChannel(event.Arguments[0]))
+}
+
+func (b *Bridge) handleJoinPart(event *irc.Event) {
+	b.Send(b.ircNick, b.ircNickFormat(event.Nick)+" "+strings.ToLower(event.Code)+"s "+event.Message(), b.getMMChannel(event.Arguments[0]))
+}
+
+func (b *Bridge) handleNotice(event *irc.Event) {
+	if strings.Contains(event.Message(), "This nickname is registered") {
+		b.i.Privmsg(b.Config.IRC.NickServNick, "IDENTIFY "+b.Config.IRC.NickServPassword)
+	}
+}
+
+func (b *Bridge) nicksPerRow() int {
+	if b.Config.Mattermost.NicksPerRow < 1 {
+		return 4
+	}
+	return b.Config.Mattermost.NicksPerRow
+}
+
+func (b *Bridge) formatnicks(nicks []string, continued bool) string {
+	switch b.Config.Mattermost.NickFormatter {
+	case "table":
+		return tableformatter(nicks, b.nicksPerRow(), continued)
+	default:
+		return plainformatter(nicks, b.nicksPerRow())
+	}
+}
+
+func (b *Bridge) storeNames(event *irc.Event) {
+	channel := event.Arguments[2]
+	b.MMirc.names[channel] = append(
+		b.MMirc.names[channel],
+		strings.Split(strings.TrimSpace(event.Message()), " ")...)
+}
+
+func (b *Bridge) endNames(event *irc.Event) {
+	channel := event.Arguments[1]
+	sort.Strings(b.MMirc.names[channel])
+	maxNamesPerPost := (300 / b.nicksPerRow()) * b.nicksPerRow()
+	continued := false
+	for len(b.MMirc.names[channel]) > maxNamesPerPost {
+		b.Send(
+			b.ircNick,
+			b.formatnicks(b.MMirc.names[channel][0:maxNamesPerPost], continued),
+			b.getMMChannel(channel))
+		b.MMirc.names[channel] = b.MMirc.names[channel][maxNamesPerPost:]
+		continued = true
+	}
+	b.Send(b.ircNick, b.formatnicks(b.MMirc.names[channel], continued), b.getMMChannel(channel))
+	b.MMirc.names[channel] = nil
+}
+
+func (b *Bridge) handleTopicWhoTime(event *irc.Event) bool {
+	parts := strings.Split(event.Arguments[2], "!")
+	t_i, err := strconv.ParseInt(event.Arguments[3], 10, 64)
+	if err != nil {
+		flog.irc.Errorf("Invalid time stamp: %s", event.Arguments[3])
+		return false
+	}
+	user := parts[0]
+	if len(parts) > 1 {
+		user += " [" + parts[1] + "]"
+	}
+	flog.irc.Infof("%s: Topic set by %s [%s]", event.Code, user, time.Unix(t_i, 0))
+	return true
+}
+
+func (b *Bridge) handleOther(event *irc.Event) {
+	flog.irc.Debugf("%#v", event)
+	switch event.Code {
+	case ircm.RPL_WELCOME:
+		b.handleNewConnection(event)
+	case ircm.RPL_ENDOFNAMES:
+		b.endNames(event)
+	case ircm.RPL_NAMREPLY:
+		b.storeNames(event)
+	case ircm.RPL_ISUPPORT:
+		fallthrough
+	case ircm.RPL_LUSEROP:
+		fallthrough
+	case ircm.RPL_LUSERUNKNOWN:
+		fallthrough
+	case ircm.RPL_LUSERCHANNELS:
+		fallthrough
+	case ircm.RPL_MYINFO:
+		flog.irc.Infof("%s: %s", event.Code, strings.Join(event.Arguments[1:], " "))
+	case ircm.RPL_YOURHOST:
+		fallthrough
+	case ircm.RPL_CREATED:
+		fallthrough
+	case ircm.RPL_STATSDLINE:
+		fallthrough
+	case ircm.RPL_LUSERCLIENT:
+		fallthrough
+	case ircm.RPL_LUSERME:
+		fallthrough
+	case ircm.RPL_LOCALUSERS:
+		fallthrough
+	case ircm.RPL_GLOBALUSERS:
+		fallthrough
+	case ircm.RPL_MOTD:
+		flog.irc.Infof("%s: %s", event.Code, event.Message())
+		// flog.irc.Info(event.Message())
+	case ircm.RPL_TOPIC:
+		flog.irc.Infof("%s: Topic for %s: %s", event.Code, event.Arguments[1], event.Message())
+	case ircm.RPL_TOPICWHOTIME:
+		if !b.handleTopicWhoTime(event) {
+			break
+		}
+	case ircm.MODE:
+		flog.irc.Infof("%s: %s %s", event.Code, event.Arguments[1], event.Arguments[0])
+	case ircm.JOIN:
+		fallthrough
+	case ircm.PING:
+		fallthrough
+	case ircm.PONG:
+		flog.irc.Infof("%s: %s", event.Code, event.Message())
+	case ircm.RPL_ENDOFMOTD:
+	case ircm.RPL_MOTDSTART:
+	case ircm.ERR_NICKNAMEINUSE:
+		flog.irc.Warn(event.Message())
+	case ircm.NOTICE:
+		b.handleNotice(event)
+	default:
+		flog.irc.Infof("UNKNOWN EVENT: %#v", event)
+		return
+	}
+}
+
+func (b *Bridge) Send(nick string, message string, channel string) error {
+	return b.SendType(nick, message, channel, "")
+}
+
+func (b *Bridge) SendType(nick string, message string, channel string, mtype string) error {
+	if b.Config.Mattermost.PrefixMessagesWithNick {
+		if IsMarkup(message) {
+			message = nick + "\n\n" + message
+		} else {
+			message = nick + " " + message
+		}
+	}
+	if b.kind == "legacy" {
+		matterMessage := matterhook.OMessage{IconURL: b.Config.Mattermost.IconURL}
+		matterMessage.Channel = channel
+		matterMessage.UserName = nick
+		matterMessage.Type = mtype
+		matterMessage.Text = message
+		err := b.mh.Send(matterMessage)
+		if err != nil {
+			flog.mm.Info(err)
+			return err
+		}
+		return nil
+	}
+	flog.mm.Debug("->mattermost channel: ", channel, " ", message)
+	b.mc.PostMessage(channel, message)
+	return nil
+}
+
+func (b *Bridge) handleMatterHook(mchan chan *MMMessage) {
+	for {
+		message := b.mh.Receive()
+		m := &MMMessage{}
+		m.Username = message.UserName
+		m.Text = message.Text
+		m.Channel = message.Token
+		mchan <- m
+	}
+}
+
+func (b *Bridge) handleMatterClient(mchan chan *MMMessage) {
+	for message := range b.mc.MessageChan {
+		// do not post our own messages back to irc
+		if message.Raw.Action == "posted" && b.mc.User.Username != message.Username {
+			m := &MMMessage{}
+			m.Username = message.Username
+			m.Channel = message.Channel
+			m.Text = message.Text
+			flog.mm.Debugf("<-mattermost channel: %s %#v %#v", message.Channel, message.Post, message.Raw)
+			mchan <- m
+		}
+	}
+}
+
+func (b *Bridge) handleMatter() {
+	mchan := make(chan *MMMessage)
+	if b.kind == "legacy" {
+		go b.handleMatterHook(mchan)
+	} else {
+		go b.handleMatterClient(mchan)
+	}
+	for message := range mchan {
+		var username string
+		username = message.Username + ": "
+		if b.Config.IRC.RemoteNickFormat != "" {
+			username = strings.Replace(b.Config.IRC.RemoteNickFormat, "{NICK}", message.Username, -1)
+		} else if b.Config.IRC.UseSlackCircumfix {
+			username = "<" + message.Username + "> "
+		}
+		cmd := strings.Fields(message.Text)[0]
+		switch cmd {
+		case "!users":
+			flog.mm.Info("received !users from ", message.Username)
+			b.i.SendRaw("NAMES " + b.getIRCChannel(message.Channel))
+			continue
+		case "!gif":
+			message.Text = b.giphyRandom(strings.Fields(strings.Replace(message.Text, "!gif ", "", 1)))
+			b.Send(b.ircNick, message.Text, b.getIRCChannel(message.Channel))
+			continue
+		}
+		texts := strings.Split(message.Text, "\n")
+		for _, text := range texts {
+			flog.mm.Debug("Sending message from " + message.Username + " to " + message.Channel)
+			b.i.Privmsg(b.getIRCChannel(message.Channel), username+text)
+		}
+	}
+}
+
+func (b *Bridge) giphyRandom(query []string) string {
+	g := giphy.DefaultClient
+	if b.Config.General.GiphyAPIKey != "" {
+		g.APIKey = b.Config.General.GiphyAPIKey
+	}
+	res, err := g.Random(query)
+	if err != nil {
+		return "error"
+	}
+	return res.Data.FixedHeightDownsampledURL
+}
+
+func (b *Bridge) getMMChannel(ircChannel string) string {
+	mmchannel, ok := b.ircMap[ircChannel]
+	if !ok {
+		mmchannel = b.Config.Mattermost.Channel
+	}
+	return mmchannel
+}
+
+func (b *Bridge) getIRCChannel(channel string) string {
+	if b.kind == "legacy" {
+		ircchannel := b.Config.IRC.Channel
+		_, ok := b.Config.Token[channel]
+		if ok {
+			ircchannel = b.Config.Token[channel].IRCChannel
+		}
+		return ircchannel
+	}
+	ircchannel, ok := b.mmMap[channel]
+	if !ok {
+		ircchannel = b.Config.IRC.Channel
+	}
+	return ircchannel
+}
diff --git a/vendor/github.com/42wim/matterbridge-plus/bridge/config.go b/vendor/github.com/42wim/matterbridge-plus/bridge/config.go
new file mode 100644
index 00000000..ca4eb225
--- /dev/null
+++ b/vendor/github.com/42wim/matterbridge-plus/bridge/config.go
@@ -0,0 +1,65 @@
+package bridge
+
+import (
+	"gopkg.in/gcfg.v1"
+	"io/ioutil"
+	"log"
+)
+
+type Config struct {
+	IRC struct {
+		UseTLS            bool
+		SkipTLSVerify     bool
+		Server            string
+		Port              int
+		Nick              string
+		Password          string
+		Channel           string
+		UseSlackCircumfix bool
+		NickServNick      string
+		NickServPassword  string
+		RemoteNickFormat  string
+	}
+	Mattermost struct {
+		URL                    string
+		Port                   int
+		ShowJoinPart           bool
+		Token                  string
+		IconURL                string
+		SkipTLSVerify          bool
+		BindAddress            string
+		Channel                string
+		PrefixMessagesWithNick bool
+		NicksPerRow            int
+		NickFormatter          string
+		Server                 string
+		Team                   string
+		Login                  string
+		Password               string
+		RemoteNickFormat       *string
+	}
+	Token map[string]*struct {
+		IRCChannel string
+		MMChannel  string
+	}
+	Channel map[string]*struct {
+		IRC        string
+		Mattermost string
+	}
+	General struct {
+		GiphyAPIKey string
+	}
+}
+
+func NewConfig(cfgfile string) *Config {
+	var cfg Config
+	content, err := ioutil.ReadFile(cfgfile)
+	if err != nil {
+		log.Fatal(err)
+	}
+	err = gcfg.ReadStringInto(&cfg, string(content))
+	if err != nil {
+		log.Fatal("Failed to parse "+cfgfile+":", err)
+	}
+	return &cfg
+}
diff --git a/vendor/github.com/42wim/matterbridge-plus/bridge/helper.go b/vendor/github.com/42wim/matterbridge-plus/bridge/helper.go
new file mode 100644
index 00000000..7669ad57
--- /dev/null
+++ b/vendor/github.com/42wim/matterbridge-plus/bridge/helper.go
@@ -0,0 +1,59 @@
+package bridge
+
+import (
+	"strings"
+)
+
+func tableformatter(nicks []string, nicksPerRow int, continued bool) string {
+	result := "|IRC users"
+	if continued {
+		result = "|(continued)"
+	}
+	for i := 0; i < 2; i++ {
+		for j := 1; j <= nicksPerRow && j <= len(nicks); j++ {
+			if i == 0 {
+				result += "|"
+			} else {
+				result += ":-|"
+			}
+		}
+		result += "\r\n|"
+	}
+	result += nicks[0] + "|"
+	for i := 1; i < len(nicks); i++ {
+		if i%nicksPerRow == 0 {
+			result += "\r\n|" + nicks[i] + "|"
+		} else {
+			result += nicks[i] + "|"
+		}
+	}
+	return result
+}
+
+func plainformatter(nicks []string, nicksPerRow int) string {
+	return strings.Join(nicks, ", ") + " currently on IRC"
+}
+
+func IsMarkup(message string) bool {
+	switch message[0] {
+	case '|':
+		fallthrough
+	case '#':
+		fallthrough
+	case '_':
+		fallthrough
+	case '*':
+		fallthrough
+	case '~':
+		fallthrough
+	case '-':
+		fallthrough
+	case ':':
+		fallthrough
+	case '>':
+		fallthrough
+	case '=':
+		return true
+	}
+	return false
+}
diff --git a/vendor/github.com/42wim/matterbridge-plus/matterclient/LICENSE b/vendor/github.com/42wim/matterbridge-plus/matterclient/LICENSE
new file mode 100644
index 00000000..8f71f43f
--- /dev/null
+++ b/vendor/github.com/42wim/matterbridge-plus/matterclient/LICENSE
@@ -0,0 +1,202 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
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+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
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+      including but not limited to software source code, documentation
+      source, and configuration files.
+
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+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
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+      where such license applies only to those patent claims licensable
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+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
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+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
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+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
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+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
+      replaced with your own identifying information. (Don't include
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+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright {yyyy} {name of copyright owner}
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
diff --git a/vendor/github.com/42wim/matterbridge-plus/matterclient/matterclient.go b/vendor/github.com/42wim/matterbridge-plus/matterclient/matterclient.go
new file mode 100644
index 00000000..11891d07
--- /dev/null
+++ b/vendor/github.com/42wim/matterbridge-plus/matterclient/matterclient.go
@@ -0,0 +1,316 @@
+package matterclient
+
+import (
+	"errors"
+	log "github.com/Sirupsen/logrus"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/gorilla/websocket"
+	"github.com/jpillora/backoff"
+	"github.com/mattermost/platform/model"
+)
+
+type Credentials struct {
+	Login  string
+	Team   string
+	Pass   string
+	Server string
+	NoTLS  bool
+}
+
+type Message struct {
+	Raw      *model.Message
+	Post     *model.Post
+	Team     string
+	Channel  string
+	Username string
+	Text     string
+}
+
+type MMClient struct {
+	*Credentials
+	Client       *model.Client
+	WsClient     *websocket.Conn
+	Channels     *model.ChannelList
+	MoreChannels *model.ChannelList
+	User         *model.User
+	Users        map[string]*model.User
+	MessageChan  chan *Message
+	Team         *model.Team
+	log          *log.Entry
+}
+
+func New(login, pass, team, server string) *MMClient {
+	cred := &Credentials{Login: login, Pass: pass, Team: team, Server: server}
+	mmclient := &MMClient{Credentials: cred, MessageChan: make(chan *Message, 100)}
+	mmclient.log = log.WithFields(log.Fields{"module": "matterclient"})
+	log.SetFormatter(&log.TextFormatter{FullTimestamp: true})
+	return mmclient
+}
+
+func (m *MMClient) SetLogLevel(level string) {
+	l, err := log.ParseLevel(level)
+	if err != nil {
+		log.SetLevel(log.InfoLevel)
+		return
+	}
+	log.SetLevel(l)
+}
+
+func (m *MMClient) Login() error {
+	b := &backoff.Backoff{
+		Min:    time.Second,
+		Max:    5 * time.Minute,
+		Jitter: true,
+	}
+	uriScheme := "https://"
+	wsScheme := "wss://"
+	if m.NoTLS {
+		uriScheme = "http://"
+		wsScheme = "ws://"
+	}
+	// login to mattermost
+	m.Client = model.NewClient(uriScheme + m.Credentials.Server)
+	var myinfo *model.Result
+	var appErr *model.AppError
+	var logmsg = "trying login"
+	for {
+		m.log.Debugf(logmsg+" %s %s %s", m.Credentials.Team, m.Credentials.Login, m.Credentials.Server)
+		myinfo, appErr = m.Client.LoginByEmail(m.Credentials.Team, m.Credentials.Login, m.Credentials.Pass)
+		if appErr != nil {
+			d := b.Duration()
+			m.log.Debug(appErr.DetailedError)
+			if !strings.Contains(appErr.DetailedError, "connection refused") &&
+				!strings.Contains(appErr.DetailedError, "invalid character") {
+				if appErr.Message == "" {
+					return errors.New(appErr.DetailedError)
+				}
+				return errors.New(appErr.Message)
+			}
+			m.log.Debug("LOGIN: %s, reconnecting in %s", appErr, d)
+			time.Sleep(d)
+			logmsg = "retrying login"
+			continue
+		}
+		break
+	}
+	// reset timer
+	b.Reset()
+	m.User = myinfo.Data.(*model.User)
+	myinfo, _ = m.Client.GetMyTeam("")
+	m.Team = myinfo.Data.(*model.Team)
+
+	// setup websocket connection
+	wsurl := wsScheme + m.Credentials.Server + "/api/v1/websocket"
+	header := http.Header{}
+	header.Set(model.HEADER_AUTH, "BEARER "+m.Client.AuthToken)
+
+	var WsClient *websocket.Conn
+	var err error
+	for {
+		WsClient, _, err = websocket.DefaultDialer.Dial(wsurl, header)
+		if err != nil {
+			d := b.Duration()
+			log.Printf("WSS: %s, reconnecting in %s", err, d)
+			time.Sleep(d)
+			continue
+		}
+		break
+	}
+	b.Reset()
+
+	m.WsClient = WsClient
+
+	// populating users
+	m.UpdateUsers()
+
+	// populating channels
+	m.UpdateChannels()
+
+	return nil
+}
+
+func (m *MMClient) WsReceiver() {
+	var rmsg model.Message
+	for {
+		if err := m.WsClient.ReadJSON(&rmsg); err != nil {
+			log.Println("error:", err)
+			// reconnect
+			m.Login()
+		}
+		//log.Printf("WsReceiver: %#v", rmsg)
+		msg := &Message{Raw: &rmsg, Team: m.Credentials.Team}
+		m.parseMessage(msg)
+		m.MessageChan <- msg
+	}
+
+}
+
+func (m *MMClient) parseMessage(rmsg *Message) {
+	switch rmsg.Raw.Action {
+	case model.ACTION_POSTED:
+		m.parseActionPost(rmsg)
+		/*
+			case model.ACTION_USER_REMOVED:
+				m.handleWsActionUserRemoved(&rmsg)
+			case model.ACTION_USER_ADDED:
+				m.handleWsActionUserAdded(&rmsg)
+		*/
+	}
+}
+
+func (m *MMClient) parseActionPost(rmsg *Message) {
+	data := model.PostFromJson(strings.NewReader(rmsg.Raw.Props["post"]))
+	//	log.Println("receiving userid", data.UserId)
+	// we don't have the user, refresh the userlist
+	if m.Users[data.UserId] == nil {
+		m.UpdateUsers()
+	}
+	rmsg.Username = m.Users[data.UserId].Username
+	rmsg.Channel = m.GetChannelName(data.ChannelId)
+	// direct message
+	if strings.Contains(rmsg.Channel, "__") {
+		//log.Println("direct message")
+		rcvusers := strings.Split(rmsg.Channel, "__")
+		if rcvusers[0] != m.User.Id {
+			rmsg.Channel = m.Users[rcvusers[0]].Username
+		} else {
+			rmsg.Channel = m.Users[rcvusers[1]].Username
+		}
+	}
+	rmsg.Text = data.Message
+	rmsg.Post = data
+	return
+}
+
+func (m *MMClient) UpdateUsers() error {
+	mmusers, _ := m.Client.GetProfiles(m.User.TeamId, "")
+	m.Users = mmusers.Data.(map[string]*model.User)
+	return nil
+}
+
+func (m *MMClient) UpdateChannels() error {
+	mmchannels, _ := m.Client.GetChannels("")
+	m.Channels = mmchannels.Data.(*model.ChannelList)
+	mmchannels, _ = m.Client.GetMoreChannels("")
+	m.MoreChannels = mmchannels.Data.(*model.ChannelList)
+	return nil
+}
+
+func (m *MMClient) GetChannelName(id string) string {
+	for _, channel := range append(m.Channels.Channels, m.MoreChannels.Channels...) {
+		if channel.Id == id {
+			return channel.Name
+		}
+	}
+	// not found? could be a new direct message from mattermost. Try to update and check again
+	m.UpdateChannels()
+	for _, channel := range append(m.Channels.Channels, m.MoreChannels.Channels...) {
+		if channel.Id == id {
+			return channel.Name
+		}
+	}
+	return ""
+}
+
+func (m *MMClient) GetChannelId(name string) string {
+	for _, channel := range append(m.Channels.Channels, m.MoreChannels.Channels...) {
+		if channel.Name == name {
+			return channel.Id
+		}
+	}
+	return ""
+}
+
+func (m *MMClient) GetChannelHeader(id string) string {
+	for _, channel := range append(m.Channels.Channels, m.MoreChannels.Channels...) {
+		if channel.Id == id {
+			return channel.Header
+		}
+	}
+	return ""
+}
+
+func (m *MMClient) PostMessage(channel string, text string) {
+	post := &model.Post{ChannelId: m.GetChannelId(channel), Message: text}
+	m.Client.CreatePost(post)
+}
+
+func (m *MMClient) JoinChannel(channel string) error {
+	cleanChan := strings.Replace(channel, "#", "", 1)
+	if m.GetChannelId(cleanChan) == "" {
+		return errors.New("failed to join")
+	}
+	for _, c := range m.Channels.Channels {
+		if c.Name == cleanChan {
+			m.log.Debug("Not joining ", cleanChan, " already joined.")
+			return nil
+		}
+	}
+	m.log.Debug("Joining ", cleanChan)
+	_, err := m.Client.JoinChannel(m.GetChannelId(cleanChan))
+	if err != nil {
+		return errors.New("failed to join")
+	}
+	//	m.SyncChannel(m.getMMChannelId(strings.Replace(channel, "#", "", 1)), strings.Replace(channel, "#", "", 1))
+	return nil
+}
+
+func (m *MMClient) GetPostsSince(channelId string, time int64) *model.PostList {
+	res, err := m.Client.GetPostsSince(channelId, time)
+	if err != nil {
+		return nil
+	}
+	return res.Data.(*model.PostList)
+}
+
+func (m *MMClient) SearchPosts(query string) *model.PostList {
+	res, err := m.Client.SearchPosts(query)
+	if err != nil {
+		return nil
+	}
+	return res.Data.(*model.PostList)
+}
+
+func (m *MMClient) GetPosts(channelId string, limit int) *model.PostList {
+	res, err := m.Client.GetPosts(channelId, 0, limit, "")
+	if err != nil {
+		return nil
+	}
+	return res.Data.(*model.PostList)
+}
+
+func (m *MMClient) UpdateChannelHeader(channelId string, header string) {
+	data := make(map[string]string)
+	data["channel_id"] = channelId
+	data["channel_header"] = header
+	log.Printf("updating channelheader %#v, %#v", channelId, header)
+	_, err := m.Client.UpdateChannelHeader(data)
+	if err != nil {
+		log.Print(err)
+	}
+}
+
+func (m *MMClient) UpdateLastViewed(channelId string) {
+	log.Printf("posting lastview %#v", channelId)
+	_, err := m.Client.UpdateLastViewedAt(channelId)
+	if err != nil {
+		log.Print(err)
+	}
+}
+
+func (m *MMClient) UsernamesInChannel(channelName string) []string {
+	ceiRes, err := m.Client.GetChannelExtraInfo(m.GetChannelId(channelName), 5000, "")
+	if err != nil {
+		log.Errorf("UsernamesInChannel(%s) failed: %s", channelName, err)
+		return []string{}
+	}
+	extra := ceiRes.Data.(*model.ChannelExtra)
+	result := []string{}
+	for _, member := range extra.Members {
+		result = append(result, member.Username)
+	}
+	return result
+}