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package bmatrix
import (
"bytes"
"mime"
"regexp"
"strings"
"sync"
"github.com/42wim/matterbridge/bridge/config"
"github.com/42wim/matterbridge/bridge/helper"
log "github.com/Sirupsen/logrus"
matrix "github.com/matterbridge/gomatrix"
)
type Bmatrix struct {
mc *matrix.Client
UserID string
RoomMap map[string]string
sync.RWMutex
*config.BridgeConfig
}
var flog *log.Entry
var protocol = "matrix"
func init() {
flog = log.WithFields(log.Fields{"module": protocol})
}
func New(cfg *config.BridgeConfig) *Bmatrix {
b := &Bmatrix{BridgeConfig: cfg}
b.RoomMap = make(map[string]string)
return b
}
func (b *Bmatrix) Connect() error {
var err error
flog.Infof("Connecting %s", b.Config.Server)
b.mc, err = matrix.NewClient(b.Config.Server, "", "")
if err != nil {
flog.Debugf("%#v", err)
return err
}
resp, err := b.mc.Login(&matrix.ReqLogin{
Type: "m.login.password",
User: b.Config.Login,
Password: b.Config.Password,
})
if err != nil {
flog.Debugf("%#v", err)
return err
}
b.mc.SetCredentials(resp.UserID, resp.AccessToken)
b.UserID = resp.UserID
flog.Info("Connection succeeded")
go b.handlematrix()
return nil
}
func (b *Bmatrix) Disconnect() error {
return nil
}
func (b *Bmatrix) JoinChannel(channel config.ChannelInfo) error {
resp, err := b.mc.JoinRoom(channel.Name, "", nil)
if err != nil {
return err
}
b.Lock()
b.RoomMap[resp.RoomID] = channel.Name
b.Unlock()
return err
}
func (b *Bmatrix) Send(msg config.Message) (string, error) {
flog.Debugf("Receiving %#v", msg)
channel := b.getRoomID(msg.Channel)
// ignore delete messages
if msg.Event == config.EVENT_MSG_DELETE {
if msg.ID == "" {
return "", nil
}
resp, err := b.mc.RedactEvent(channel, msg.ID, &matrix.ReqRedact{})
if err != nil {
return "", err
}
return resp.EventID, err
}
flog.Debugf("Sending to channel %s", channel)
if msg.Event == config.EVENT_USER_ACTION {
resp, err := b.mc.SendMessageEvent(channel, "m.room.message",
matrix.TextMessage{"m.emote", msg.Username + msg.Text})
if err != nil {
return "", err
}
return resp.EventID, err
}
if msg.Extra != nil {
// check if we have files to upload (from slack, telegram or mattermost)
if len(msg.Extra["file"]) > 0 {
for _, f := range msg.Extra["file"] {
fi := f.(config.FileInfo)
content := bytes.NewReader(*fi.Data)
sp := strings.Split(fi.Name, ".")
mtype := mime.TypeByExtension("." + sp[len(sp)-1])
if strings.Contains(mtype, "image") ||
strings.Contains(mtype, "video") {
if fi.Comment != "" {
_, err := b.mc.SendText(channel, msg.Username+fi.Comment)
if err != nil {
flog.Errorf("file comment failed: %#v", err)
}
}
flog.Debugf("uploading file: %s %s", fi.Name, mtype)
res, err := b.mc.UploadToContentRepo(content, mtype, int64(len(*fi.Data)))
if err != nil {
flog.Errorf("file upload failed: %#v", err)
continue
}
if strings.Contains(mtype, "video") {
flog.Debugf("sendVideo %s", res.ContentURI)
_, err = b.mc.SendVideo(channel, fi.Name, res.ContentURI)
if err != nil {
flog.Errorf("sendVideo failed: %#v", err)
}
}
if strings.Contains(mtype, "image") {
flog.Debugf("sendImage %s", res.ContentURI)
_, err = b.mc.SendImage(channel, fi.Name, res.ContentURI)
if err != nil {
flog.Errorf("sendImage failed: %#v", err)
}
}
flog.Debugf("result: %#v", res)
}
}
return "", nil
}
}
resp, err := b.mc.SendText(channel, msg.Username+msg.Text)
if err != nil {
return "", err
}
return resp.EventID, err
}
func (b *Bmatrix) getRoomID(channel string) string {
b.RLock()
defer b.RUnlock()
for ID, name := range b.RoomMap {
if name == channel {
return ID
}
}
return ""
}
func (b *Bmatrix) handlematrix() error {
syncer := b.mc.Syncer.(*matrix.DefaultSyncer)
syncer.OnEventType("m.room.redaction", b.handleEvent)
syncer.OnEventType("m.room.message", b.handleEvent)
go func() {
for {
if err := b.mc.Sync(); err != nil {
flog.Println("Sync() returned ", err)
}
}
}()
return nil
}
func (b *Bmatrix) handleEvent(ev *matrix.Event) {
flog.Debugf("Received: %#v", ev)
if ev.Sender != b.UserID {
b.RLock()
channel, ok := b.RoomMap[ev.RoomID]
b.RUnlock()
if !ok {
flog.Debugf("Unknown room %s", ev.RoomID)
return
}
username := ev.Sender[1:]
if b.Config.NoHomeServerSuffix {
re := regexp.MustCompile("(.*?):.*")
username = re.ReplaceAllString(username, `$1`)
}
var text string
text, _ = ev.Content["body"].(string)
rmsg := config.Message{Username: username, Text: text, Channel: channel, Account: b.Account, UserID: ev.Sender}
rmsg.ID = ev.ID
if ev.Type == "m.room.redaction" {
rmsg.Event = config.EVENT_MSG_DELETE
rmsg.ID = ev.Redacts
rmsg.Text = config.EVENT_MSG_DELETE
b.Remote <- rmsg
return
}
if ev.Content["msgtype"].(string) == "m.emote" {
rmsg.Event = config.EVENT_USER_ACTION
}
if ev.Content["msgtype"] != nil && ev.Content["msgtype"].(string) == "m.image" ||
ev.Content["msgtype"].(string) == "m.video" ||
ev.Content["msgtype"].(string) == "m.file" {
flog.Debugf("ev: %#v", ev)
rmsg.Extra = make(map[string][]interface{})
url := ev.Content["url"].(string)
url = strings.Replace(url, "mxc://", b.Config.Server+"/_matrix/media/v1/download/", -1)
info := ev.Content["info"].(map[string]interface{})
size := info["size"].(float64)
name := ev.Content["body"].(string)
// check if we have an image uploaded without extension
if !strings.Contains(name, ".") {
if ev.Content["msgtype"].(string) == "m.image" {
if mtype, ok := ev.Content["mimetype"].(string); ok {
mext, _ := mime.ExtensionsByType(mtype)
if len(mext) > 0 {
name = name + mext[0]
}
} else {
// just a default .png extension if we don't have mime info
name = name + ".png"
}
}
}
flog.Debugf("trying to download %#v with size %#v", name, size)
if size <= float64(b.General.MediaDownloadSize) {
data, err := helper.DownloadFile(url)
if err != nil {
flog.Errorf("download %s failed %#v", url, err)
} else {
flog.Debugf("download OK %#v %#v %#v", name, len(*data), len(url))
rmsg.Extra["file"] = append(rmsg.Extra["file"], config.FileInfo{Name: name, Data: data})
}
}
rmsg.Text = ""
}
flog.Debugf("Sending message from %s on %s to gateway", ev.Sender, b.Account)
b.Remote <- rmsg
}
}
|
