Add Gitter support

bridge/gitter/gitter.go

@@ -0,0 +1,110 @@
+package bgitter
+
+import (
+	"github.com/42wim/matterbridge/bridge/config"
+	log "github.com/Sirupsen/logrus"
+	"github.com/sromku/go-gitter"
+	"strings"
+)
+
+type Bgitter struct {
+	c *gitter.Gitter
+	*config.Config
+	Remote chan config.Message
+	Rooms  []gitter.Room
+}
+
+type Message struct {
+	Text     string
+	Channel  string
+	Username string
+}
+
+var flog *log.Entry
+
+func init() {
+	flog = log.WithFields(log.Fields{"module": "gitter"})
+}
+
+func New(config *config.Config, c chan config.Message) *Bgitter {
+	b := &Bgitter{}
+	b.Config = config
+	b.Remote = c
+	return b
+}
+
+func (b *Bgitter) Connect() error {
+	var err error
+	flog.Info("Trying Gitter connection")
+	b.c = gitter.New(b.Config.Gitter.Token)
+	_, err = b.c.GetUser()
+	if err != nil {
+		flog.Debugf("%#v", err)
+		return err
+	}
+	flog.Info("Connection succeeded")
+	b.setupChannels()
+	go b.handleGitter()
+	return nil
+}
+
+func (b *Bgitter) Name() string {
+	return "gitter"
+}
+
+func (b *Bgitter) Send(msg config.Message) error {
+	roomID := b.getRoomID(msg.Channel)
+	if roomID == "" {
+		flog.Errorf("Could not find roomID for %v", msg.Channel)
+		return nil
+	}
+	// add ZWSP because gitter echoes our own messages
+	return b.c.SendMessage(roomID, msg.Username+msg.Text+" ​")
+}
+
+func (b *Bgitter) getRoomID(channel string) string {
+	for _, v := range b.Rooms {
+		if v.URI == channel {
+			return v.ID
+		}
+	}
+	return ""
+}
+
+func (b *Bgitter) handleGitter() {
+	for _, val := range b.Config.Channel {
+		room := val.Gitter
+		roomID := b.getRoomID(room)
+		if roomID == "" {
+			continue
+		}
+		stream := b.c.Stream(roomID)
+		go b.c.Listen(stream)
+
+		go func(stream *gitter.Stream, room string) {
+			for {
+				event := <-stream.Event
+				switch ev := event.Data.(type) {
+				case *gitter.MessageReceived:
+					// check for ZWSP to see if it's not an echo
+					if !strings.HasSuffix(ev.Message.Text, "​") {
+						b.Remote <- config.Message{Username: ev.Message.From.Username, Text: ev.Message.Text, Channel: room, Origin: "gitter"}
+					}
+				case *gitter.GitterConnectionClosed:
+					flog.Errorf("connection with gitter closed for room %s", room)
+				}
+			}
+		}(stream, room)
+	}
+}
+
+func (b *Bgitter) setupChannels() {
+	b.Rooms, _ = b.c.GetRooms()
+	for _, val := range b.Config.Channel {
+		flog.Infof("Joining %s as %s", val.Gitter, b.Gitter.Nick)
+		_, err := b.c.JoinRoom(val.Gitter)
+		if err != nil {
+			log.Errorf("Joining %s failed", val.Gitter)
+		}
+	}
+}