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matterbridge/bridge/gitter/gitter.go
Wim ed01820722 Add support for deleting messages across bridges.
Currently fully support mattermost,slack and discord.
Message deleted on the bridge or received from other bridges will be
deleted.

Partially support for Gitter.
Gitter bridge will delete messages received from other bridges.
But if you delete a message on gitter, this deletion will not be sent to
other bridges (this is a gitter API limitation, it doesn't propogate edits
or deletes via the API)
2017-09-11 22:45:15 +02:00

155 lines
3.6 KiB
Go

package bgitter
import (
"fmt"
"github.com/42wim/go-gitter"
"github.com/42wim/matterbridge/bridge/config"
log "github.com/Sirupsen/logrus"
"strings"
)
type Bgitter struct {
c *gitter.Gitter
Config *config.Protocol
Remote chan config.Message
Account string
User *gitter.User
Users []gitter.User
Rooms []gitter.Room
}
var flog *log.Entry
var protocol = "gitter"
func init() {
flog = log.WithFields(log.Fields{"module": protocol})
}
func New(cfg config.Protocol, account string, c chan config.Message) *Bgitter {
b := &Bgitter{}
b.Config = &cfg
b.Remote = c
b.Account = account
return b
}
func (b *Bgitter) Connect() error {
var err error
flog.Info("Connecting")
b.c = gitter.New(b.Config.Token)
b.User, err = b.c.GetUser()
if err != nil {
flog.Debugf("%#v", err)
return err
}
flog.Info("Connection succeeded")
b.Rooms, _ = b.c.GetRooms()
return nil
}
func (b *Bgitter) Disconnect() error {
return nil
}
func (b *Bgitter) JoinChannel(channel config.ChannelInfo) error {
roomID, err := b.c.GetRoomId(channel.Name)
if err != nil {
return fmt.Errorf("Could not find roomID for %v. Please create the room on gitter.im", channel.Name)
}
room, err := b.c.GetRoom(roomID)
if err != nil {
return err
}
b.Rooms = append(b.Rooms, *room)
user, err := b.c.GetUser()
if err != nil {
return err
}
_, err = b.c.JoinRoom(roomID, user.ID)
if err != nil {
return err
}
users, _ := b.c.GetUsersInRoom(roomID)
b.Users = append(b.Users, users...)
stream := b.c.Stream(roomID)
go b.c.Listen(stream)
go func(stream *gitter.Stream, room string) {
for event := range stream.Event {
switch ev := event.Data.(type) {
case *gitter.MessageReceived:
if ev.Message.From.ID != b.User.ID {
flog.Debugf("Sending message from %s on %s to gateway", ev.Message.From.Username, b.Account)
rmsg := config.Message{Username: ev.Message.From.Username, Text: ev.Message.Text, Channel: room,
Account: b.Account, Avatar: b.getAvatar(ev.Message.From.Username), UserID: ev.Message.From.ID,
ID: ev.Message.ID}
if strings.HasPrefix(ev.Message.Text, "@"+ev.Message.From.Username) {
rmsg.Event = config.EVENT_USER_ACTION
rmsg.Text = strings.Replace(rmsg.Text, "@"+ev.Message.From.Username+" ", "", -1)
}
flog.Debugf("Message is %#v", rmsg)
b.Remote <- rmsg
}
case *gitter.GitterConnectionClosed:
flog.Errorf("connection with gitter closed for room %s", room)
}
}
}(stream, room.Name)
return nil
}
func (b *Bgitter) Send(msg config.Message) (string, error) {
flog.Debugf("Receiving %#v", msg)
roomID := b.getRoomID(msg.Channel)
if roomID == "" {
flog.Errorf("Could not find roomID for %v", msg.Channel)
return "", nil
}
if msg.Event == config.EVENT_MSG_DELETE {
if msg.ID == "" {
return "", nil
}
// gitter has no delete message api
_, err := b.c.UpdateMessage(roomID, msg.ID, "")
if err != nil {
return "", err
}
return "", nil
}
if msg.ID != "" {
flog.Debugf("updating message with id %s", msg.ID)
_, err := b.c.UpdateMessage(roomID, msg.ID, msg.Username+msg.Text)
if err != nil {
return "", err
}
return "", nil
}
resp, err := b.c.SendMessage(roomID, msg.Username+msg.Text)
if err != nil {
return "", err
}
return resp.ID, nil
}
func (b *Bgitter) getRoomID(channel string) string {
for _, v := range b.Rooms {
if v.URI == channel {
return v.ID
}
}
return ""
}
func (b *Bgitter) getAvatar(user string) string {
var avatar string
if b.Users != nil {
for _, u := range b.Users {
if user == u.Username {
return u.AvatarURLSmall
}
}
}
return avatar
}