Update to v0.3

Add PASS support as per RFC1459

README.md

@@ -3,14 +3,19 @@
 Simple bridge between mattermost and IRC. Uses the in/outgoing webhooks.  
 Relays public channel messages between mattermost and IRC.  
 
-Work in progress. 
+Requires mattermost 1.2.0+
+
+There is also [matterbridge-plus] (https://github.com/42wim/matterbridge-plus) which uses the mattermost API and needs a dedicated user (bot). But requires no incoming/outgoing webhook setup. 
+
+## binaries
+Binaries can be found [here] (https://github.com/42wim/matterbridge/releases/tag/v0.3)
 
 ## building
 Make sure you have [Go](https://golang.org/doc/install) properly installed, including setting up your [GOPATH] (https://golang.org/doc/code.html#GOPATH)
 
 ```
 cd $GOPATH
-go get https://github.com/42wim/matterbridge
+go get github.com/42wim/matterbridge
 ```
 
 You should now have matterbridge binary in the bin directory:
@@ -25,6 +30,11 @@ matterbridge
 2) Edit matterbridge.conf with the settings for your environment. See below for more config information.  
 3) Now you can run matterbridge. 
 
+```
+Usage of matterbridge:
+  -conf="matterbridge.conf": config file
+```
+
 Matterbridge will:
 * start a webserver listening on the port specified in the configuration.
 * connect to specified irc server and channel.
@@ -32,7 +42,7 @@ Matterbridge will:
 
 ## config
 ### matterbridge
-matterbridge looks for matterbridge.conf in current directory.
+matterbridge looks for matterbridge.conf in current directory. (use -conf to specify another file)
 
 Look at matterbridge.conf.sample for an example
 
@@ -45,12 +55,35 @@ UseTLS=false
 SkipTLSVerify=true
 nick="matterbot"
 channel="#matterbridge"
+UseSlackCircumfix=false
 
 [mattermost]
 #url is your incoming webhook url (account settings - integrations - incoming webhooks)
 url="http://mattermost.yourdomain.com/hooks/incomingwebhookkey"  
 #port the bridge webserver will listen on
 port=9999
+#address the webserver will bind to
+BindAddress="0.0.0.0"
+showjoinpart=true #show irc users joining and parting
+#the token you get from the outgoing webhook in mattermost. If empty no token check will be done.
+#if you use multiple IRC channel (see below, this must be empty!)
+token=yourtokenfrommattermost
+#disable certificate checking (selfsigned certificates)
+#SkipTLSVerify=true
+
+#multiple channel config
+#token you can find in your outgoing webhook
+[Token "outgoingwebhooktoken1"] 
+IRCChannel="#off-topic"
+MMChannel="off-topic"
+
+[Token "outgoingwebhooktoken2"]
+IRCChannel="#testing"
+MMChannel="testing"
+
+[general]
+#request your API key on https://github.com/giphy/GiphyAPI. This is a public beta key
+GiphyApiKey="dc6zaTOxFJmzC"
 ```
 
 ### mattermost

config.go

@@ -8,16 +8,31 @@ import (
 
 type Config struct {
 	IRC struct {
-		UseTLS        bool
-		SkipTLSVerify bool
-		Server        string
-		Port          int
-		Nick          string
-		Channel       string
+		UseTLS            bool
+		SkipTLSVerify     bool
+		Server            string
+		Port              int
+		Nick              string
+		Password          string
+		Channel           string
+		UseSlackCircumfix bool
 	}
 	Mattermost struct {
-		URL  string
-		Port int
+		URL           string
+		Port          int
+		ShowJoinPart  bool
+		Token         string
+		IconURL       string
+		SkipTLSVerify bool
+		BindAddress   string
+		Channel       string
+	}
+	Token map[string]*struct {
+		IRCChannel string
+		MMChannel  string
+	}
+	General struct {
+		GiphyAPIKey string
 	}
 }
 

matterbridge.conf.sample

@@ -5,7 +5,28 @@ UseTLS=false
 SkipTLSVerify=true
 nick="matterbot"
 channel="#matterbridge"
+UseSlackCircumfix=false
 
 [mattermost]
 url="http://yourdomain/hooks/yourhookkey"
 port=9999
+showjoinpart=true
+#remove token when using multiple channels!
+token=yourtokenfrommattermost
+IconURL="http://youricon.png"
+#SkipTLSVerify=true
+#BindAddress="0.0.0.0"
+
+[general]
+GiphyAPIKey=dc6zaTOxFJmzC
+
+#multiple channel config
+#token you can find in your outgoing webhook
+[Token "outgoingwebhooktoken1"] 
+IRCChannel="#off-topic"
+MMChannel="off-topic"
+
+[Token "outgoingwebhooktoken2"]
+IRCChannel="#testing"
+MMChannel="testing"
+

matterbridge.go

@@ -2,23 +2,36 @@ package main
 
 import (
 	"crypto/tls"
+	"flag"
 	"github.com/42wim/matterbridge/matterhook"
+	"github.com/peterhellberg/giphy"
 	"github.com/thoj/go-ircevent"
 	"log"
 	"strconv"
+	"strings"
 	"time"
 )
 
 type Bridge struct {
-	i *irc.Connection
-	m *matterhook.Client
+	i    *irc.Connection
+	m    *matterhook.Client
+	cmap map[string]string
 	*Config
 }
 
 func NewBridge(name string, config *Config) *Bridge {
 	b := &Bridge{}
 	b.Config = config
-	b.m = matterhook.New(b.Config.Mattermost.URL, matterhook.Config{Port: b.Config.Mattermost.Port})
+	b.cmap = make(map[string]string)
+	if len(b.Config.Token) > 0 {
+		for _, val := range b.Config.Token {
+			b.cmap[val.IRCChannel] = val.MMChannel
+		}
+	}
+	b.m = 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})
 	b.i = b.createIRC(name)
 	go b.handleMatter()
 	return b
@@ -28,29 +41,123 @@ 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.Connect(b.Config.IRC.Server + ":" + strconv.Itoa(b.Config.IRC.Port))
 	time.Sleep(time.Second)
 	log.Println("Joining", b.Config.IRC.Channel, "as", b.Config.IRC.Nick)
 	i.Join(b.Config.IRC.Channel)
+	for _, val := range b.Config.Token {
+		log.Println("Joining", val.IRCChannel, "as", b.Config.IRC.Nick)
+		i.Join(val.IRCChannel)
+	}
 	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)
+	}
+	//i.AddCallback("353", b.handleOther)
 	return i
 }
 
 func (b *Bridge) handlePrivMsg(event *irc.Event) {
-	matterMessage := matterhook.OMessage{}
-	matterMessage.Text = event.Message()
-	matterMessage.UserName = "irc-" + event.Nick
-	b.m.Send(matterMessage)
+	msg := ""
+	if event.Code == "CTCP_ACTION" {
+		msg = event.Nick + " "
+	}
+	msg += event.Message()
+	b.Send("irc-"+event.Nick, msg, b.getMMChannel(event.Arguments[0]))
 }
 
-func (b *Bridge) handleMatter() {
-	for {
-		message := b.m.Receive()
-		b.i.Privmsg(b.Config.IRC.Channel, message.UserName+": "+message.Text)
+func (b *Bridge) handleJoinPart(event *irc.Event) {
+	b.Send(b.Config.IRC.Nick, "irc-"+event.Nick+" "+strings.ToLower(event.Code)+"s "+event.Message(), b.getMMChannel(event.Arguments[0]))
+	//b.SendType(b.Config.IRC.Nick, "irc-"+event.Nick+" "+strings.ToLower(event.Code)+"s "+event.Message(), b.getMMChannel(event.Arguments[0]), "join_leave")
+}
+
+func (b *Bridge) handleOther(event *irc.Event) {
+	switch event.Code {
+	case "353":
+		log.Println("handleOther", b.getMMChannel(event.Arguments[0]))
+		b.Send(b.Config.IRC.Nick, event.Message()+" currently on IRC", b.getMMChannel(event.Arguments[0]))
 	}
 }
 
+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 {
+	matterMessage := matterhook.OMessage{IconURL: b.Config.Mattermost.IconURL}
+	matterMessage.Channel = channel
+	matterMessage.UserName = nick
+	matterMessage.Text = message
+	matterMessage.Type = mtype
+	err := b.m.Send(matterMessage)
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+	return nil
+}
+
+func (b *Bridge) handleMatter() {
+	var username string
+	for {
+		message := b.m.Receive()
+		username = message.UserName + ": "
+		if b.Config.IRC.UseSlackCircumfix {
+			username = "<" + message.UserName + "> "
+		}
+		cmd := strings.Fields(message.Text)[0]
+		switch cmd {
+		case "!users":
+			log.Println("received !users from", message.UserName)
+			b.i.SendRaw("NAMES " + b.getIRCChannel(message.Token))
+		case "!gif":
+			message.Text = b.giphyRandom(strings.Fields(strings.Replace(message.Text, "!gif ", "", 1)))
+			b.Send(b.Config.IRC.Nick, message.Text, b.getIRCChannel(message.Token))
+		}
+		texts := strings.Split(message.Text, "\n")
+		for _, text := range texts {
+			b.i.Privmsg(b.getIRCChannel(message.Token), 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.cmap[ircChannel]
+	if !ok {
+		mmchannel = b.Config.Mattermost.Channel
+	}
+	return mmchannel
+}
+
+func (b *Bridge) getIRCChannel(token string) string {
+	ircchannel := b.Config.IRC.Channel
+	_, ok := b.Config.Token[token]
+	if ok {
+		ircchannel = b.Config.Token[token].IRCChannel
+	}
+	return ircchannel
+}
+
 func main() {
-	NewBridge("matterbot", NewConfig("matterbridge.conf"))
+	flagConfig := flag.String("conf", "matterbridge.conf", "config file")
+	flag.Parse()
+	NewBridge("matterbot", NewConfig(*flagConfig))
 	select {}
 }

matterhook/matterhook.go

@@ -1,7 +1,9 @@
+//Package matterhook provides interaction with mattermost incoming/outgoing webhooks
 package matterhook
 
 import (
 	"bytes"
+	"crypto/tls"
 	"encoding/json"
 	"fmt"
 	"github.com/gorilla/schema"
@@ -14,11 +16,13 @@ import (
 
 // OMessage for mattermost incoming webhook. (send to mattermost)
 type OMessage struct {
-	Channel   string `json:"channel,omitempty"`
-	IconURL   string `json:"icon_url,omitempty"`
-	IconEmoji string `json:"icon_emoji,omitempty"`
-	UserName  string `json:"username,omitempty"`
-	Text      string `json:"text"`
+	Channel     string      `json:"channel,omitempty"`
+	IconURL     string      `json:"icon_url,omitempty"`
+	IconEmoji   string      `json:"icon_emoji,omitempty"`
+	UserName    string      `json:"username,omitempty"`
+	Text        string      `json:"text"`
+	Attachments interface{} `json:"attachments,omitempty"`
+	Type        string      `json:"type,omitempty"`
 }
 
 // IMessage for mattermost outgoing webhook. (received from mattermost)
@@ -38,23 +42,36 @@ type IMessage struct {
 
 // Client for Mattermost.
 type Client struct {
-	url string
-	In  chan IMessage
-	Out chan OMessage
+	Url        string // URL for incoming webhooks on mattermost.
+	In         chan IMessage
+	Out        chan OMessage
+	httpclient *http.Client
 	Config
 }
 
+// Config for client.
 type Config struct {
-	Port int
+	Port               int    // Port to listen on.
+	BindAddress        string // Address to listen on
+	Token              string // Only allow this token from Mattermost. (Allow everything when empty)
+	InsecureSkipVerify bool   // disable certificate checking
+	DisableServer      bool   // Do not start server for outgoing webhooks from Mattermost.
 }
 
 // New Mattermost client.
 func New(url string, config Config) *Client {
-	c := &Client{url: url, In: make(chan IMessage), Out: make(chan OMessage), Config: config}
+	c := &Client{Url: url, In: make(chan IMessage), Out: make(chan OMessage), Config: config}
 	if c.Port == 0 {
 		c.Port = 9999
 	}
-	go c.StartServer()
+	c.BindAddress += ":"
+	tr := &http.Transport{
+		TLSClientConfig: &tls.Config{InsecureSkipVerify: config.InsecureSkipVerify},
+	}
+	c.httpclient = &http.Client{Transport: tr}
+	if !c.DisableServer {
+		go c.StartServer()
+	}
 	return c
 }
 
@@ -62,14 +79,19 @@ func New(url string, config Config) *Client {
 func (c *Client) StartServer() {
 	mux := http.NewServeMux()
 	mux.Handle("/", c)
-	log.Printf("Listening on http://0.0.0.0:%v...\n", c.Port)
-	if err := http.ListenAndServe((":" + strconv.Itoa(c.Port)), mux); err != nil {
+	log.Printf("Listening on http://%v:%v...\n", c.BindAddress, c.Port)
+	if err := http.ListenAndServe((c.BindAddress + strconv.Itoa(c.Port)), mux); err != nil {
 		log.Fatal(err)
 	}
 }
 
 // ServeHTTP implementation.
 func (c *Client) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "POST" {
+		log.Println("invalid " + r.Method + " connection from " + r.RemoteAddr)
+		http.NotFound(w, r)
+		return
+	}
 	msg := IMessage{}
 	err := r.ParseForm()
 	if err != nil {
@@ -85,6 +107,18 @@ func (c *Client) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		http.NotFound(w, r)
 		return
 	}
+	if msg.Token == "" {
+		log.Println("no token from " + r.RemoteAddr)
+		http.NotFound(w, r)
+		return
+	}
+	if c.Token != "" {
+		if msg.Token != c.Token {
+			log.Println("invalid token " + msg.Token + " from " + r.RemoteAddr)
+			http.NotFound(w, r)
+			return
+		}
+	}
 	c.In <- msg
 }
 
@@ -104,7 +138,7 @@ func (c *Client) Send(msg OMessage) error {
 	if err != nil {
 		return err
 	}
-	resp, err := http.Post(c.url, "application/json", bytes.NewReader(buf))
+	resp, err := c.httpclient.Post(c.Url, "application/json", bytes.NewReader(buf))
 	if err != nil {
 		return err
 	}