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