Release v1.11.1

Currently numbers are stripped not just after the color control code (\x03) but also after other formatting such as bold (\x02) and italic (\x1D), which is both unnecessary and leads to missing text from irc. This fixes that by only stripping numbers after the color control code.

README.md

@@ -69,7 +69,7 @@ See https://github.com/42wim/matterbridge/wiki
 
 # Installing
 ## Binaries
-* Latest stable release [v1.11.0](https://github.com/42wim/matterbridge/releases/latest)
+* Latest stable release [v1.11.1](https://github.com/42wim/matterbridge/releases/latest)
 * Development releases (follows master) can be downloaded [here](https://dl.bintray.com/42wim/nightly/)  
 
 ## Building

bridge/discord/discord.go

@@ -13,6 +13,8 @@ import (
 	"github.com/bwmarrin/discordgo"
 )
 
+const MessageLength = 1950
+
 type Bdiscord struct {
 	c              *discordgo.Session
 	Channels       []*discordgo.Channel
@@ -127,16 +129,22 @@ func (b *Bdiscord) Send(msg config.Message) (string, error) {
 	// Use webhook to send the message
 	if wID != "" {
 		// skip events
-		if msg.Event != "" {
+		if msg.Event != "" && msg.Event != config.EVENT_JOIN_LEAVE && msg.Event != config.EVENT_TOPIC_CHANGE {
 			return "", nil
 		}
 		b.Log.Debugf("Broadcasting using Webhook")
 		for _, f := range msg.Extra["file"] {
 			fi := f.(config.FileInfo)
 			if fi.URL != "" {
-				msg.Text += fi.URL + " "
+				msg.Text += " " + fi.URL
 			}
 		}
+		// skip empty messages
+		if msg.Text == "" {
+			return "", nil
+		}
+
+		msg.Text = helper.ClipMessage(msg.Text, MessageLength)
 		err := b.c.WebhookExecute(
 			wID,
 			wToken,
@@ -163,6 +171,7 @@ func (b *Bdiscord) Send(msg config.Message) (string, error) {
 	// Upload a file if it exists
 	if msg.Extra != nil {
 		for _, rmsg := range helper.HandleExtra(&msg, b.General) {
+			rmsg.Text = helper.ClipMessage(rmsg.Text, MessageLength)
 			b.c.ChannelMessageSend(channelID, rmsg.Username+rmsg.Text)
 		}
 		// check if we have files to upload (from slack, telegram or mattermost)
@@ -171,6 +180,7 @@ func (b *Bdiscord) Send(msg config.Message) (string, error) {
 		}
 	}
 
+	msg.Text = helper.ClipMessage(msg.Text, MessageLength)
 	// Edit message
 	if msg.ID != "" {
 		_, err := b.c.ChannelMessageEdit(channelID, msg.ID, msg.Username+msg.Text)

bridge/helper/helper.go

@@ -8,6 +8,7 @@ import (
 	"regexp"
 	"strings"
 	"time"
+	"unicode/utf8"
 
 	"github.com/42wim/matterbridge/bridge/config"
 	log "github.com/sirupsen/logrus"
@@ -59,7 +60,7 @@ func HandleExtra(msg *config.Message, general *config.Protocol) []config.Message
 		for _, f := range extra[config.EVENT_FILE_FAILURE_SIZE] {
 			fi := f.(config.FileInfo)
 			text := fmt.Sprintf("file %s too big to download (%#v > allowed size: %#v)", fi.Name, fi.Size, general.MediaDownloadSize)
-			rmsg = append(rmsg, config.Message{Text: text, Username: "<system> ", Channel: msg.Channel})
+			rmsg = append(rmsg, config.Message{Text: text, Username: "<system> ", Channel: msg.Channel, Account: msg.Account})
 		}
 		return rmsg
 	}
@@ -115,3 +116,15 @@ func RemoveEmptyNewLines(msg string) string {
 	lines = strings.TrimRight(lines, "\n")
 	return lines
 }
+
+func ClipMessage(text string, length int) string {
+	// clip too long messages
+	if len(text) > length {
+		text = text[:length-len(" *message clipped*")]
+		if r, size := utf8.DecodeLastRuneInString(text); r == utf8.RuneError {
+			text = text[:len(text)-size]
+		}
+		text += " *message clipped*"
+	}
+	return text
+}

bridge/irc/irc.go

@@ -397,7 +397,7 @@ func (b *Birc) handlePrivMsg(client *girc.Client, event girc.Event) {
 	rmsg.Text += event.StripAction()
 
 	// strip IRC colors
-	re := regexp.MustCompile(`[[:cntrl:]](?:\d{1,2}(?:,\d{1,2})?)?`)
+	re := regexp.MustCompile(`\x03(?:\d{1,2}(?:,\d{1,2})?)?|[[:cntrl:]]`)
 	rmsg.Text = re.ReplaceAllString(rmsg.Text, "")
 
 	// start detecting the charset

bridge/mattermost/mattermost.go

@@ -185,6 +185,9 @@ func (b *Bmattermost) handleMatter() {
 	for message := range messages {
 		message.Avatar = helper.GetAvatar(b.avatarMap, message.UserID, b.General)
 		message.Account = b.Account
+		if nick := b.mc.GetNickName(message.UserID); nick != "" {
+			message.Username = nick
+		}
 		message.Text, ok = b.replaceAction(message.Text)
 		if ok {
 			message.Event = config.EVENT_USER_ACTION
@@ -205,7 +208,7 @@ func (b *Bmattermost) handleMatterClient(messages chan *config.Message) {
 		}
 
 		// only download avatars if we have a place to upload them (configured mediaserver)
-		if b.General.MediaServerUpload != "" {
+		if b.General.MediaServerUpload != "" || b.General.MediaDownloadPath != "" {
 			b.handleDownloadAvatar(message.UserID, message.Channel)
 		}
 

bridge/slack/slack.go

@@ -19,14 +19,15 @@ import (
 )
 
 type Bslack struct {
-	mh         *matterhook.Client
-	sc         *slack.Client
-	rtm        *slack.RTM
-	Users      []slack.User
-	Usergroups []slack.UserGroup
-	si         *slack.Info
-	channels   []slack.Channel
-	uuid       string
+	mh           *matterhook.Client
+	sc           *slack.Client
+	rtm          *slack.RTM
+	Users        []slack.User
+	Usergroups   []slack.UserGroup
+	si           *slack.Info
+	channels     []slack.Channel
+	UseChannelID bool
+	uuid         string
 	*bridge.Config
 	sync.RWMutex
 }
@@ -98,6 +99,20 @@ func (b *Bslack) Disconnect() error {
 }
 
 func (b *Bslack) JoinChannel(channel config.ChannelInfo) error {
+	// use ID:channelid and resolve it to the actual name
+	idcheck := strings.Split(channel.Name, "ID:")
+	if len(idcheck) > 1 {
+		b.UseChannelID = true
+		ch, err := b.sc.GetChannelInfo(idcheck[1])
+		if err != nil {
+			return err
+		}
+		channel.Name = ch.Name
+		if err != nil {
+			return err
+		}
+	}
+
 	// we can only join channels using the API
 	if b.sc != nil {
 		if strings.HasPrefix(b.GetString("Token"), "xoxb") {
@@ -131,11 +146,7 @@ func (b *Bslack) Send(msg config.Message) (string, error) {
 		return b.sendWebhook(msg)
 	}
 
-	// get the slack channel
-	schannel, err := b.getChannelByName(msg.Channel)
-	if err != nil {
-		return "", err
-	}
+	channelID := b.getChannelID(msg.Channel)
 
 	// Delete message
 	if msg.Event == config.EVENT_MSG_DELETE {
@@ -145,7 +156,7 @@ func (b *Bslack) Send(msg config.Message) (string, error) {
 		}
 		// we get a "slack <ID>", split it
 		ts := strings.Fields(msg.ID)
-		_, _, err := b.sc.DeleteMessage(schannel.ID, ts[1])
+		_, _, err := b.sc.DeleteMessage(channelID, ts[1])
 		if err != nil {
 			return msg.ID, err
 		}
@@ -160,7 +171,7 @@ func (b *Bslack) Send(msg config.Message) (string, error) {
 	// Edit message if we have an ID
 	if msg.ID != "" {
 		ts := strings.Fields(msg.ID)
-		_, _, _, err := b.sc.UpdateMessage(schannel.ID, ts[1], msg.Text)
+		_, _, _, err := b.sc.UpdateMessage(channelID, ts[1], msg.Text)
 		if err != nil {
 			return msg.ID, err
 		}
@@ -192,16 +203,16 @@ func (b *Bslack) Send(msg config.Message) (string, error) {
 	// Upload a file if it exists
 	if msg.Extra != nil {
 		for _, rmsg := range helper.HandleExtra(&msg, b.General) {
-			b.sc.PostMessage(schannel.ID, rmsg.Username+rmsg.Text, np)
+			b.sc.PostMessage(channelID, rmsg.Username+rmsg.Text, np)
 		}
 		// check if we have files to upload (from slack, telegram or mattermost)
 		if len(msg.Extra["file"]) > 0 {
-			b.handleUploadFile(&msg, schannel.ID)
+			b.handleUploadFile(&msg, channelID)
 		}
 	}
 
 	// Post normal message
-	_, id, err := b.sc.PostMessage(schannel.ID, msg.Text, np)
+	_, id, err := b.sc.PostMessage(channelID, msg.Text, np)
 	if err != nil {
 		return "", err
 	}
@@ -212,11 +223,11 @@ func (b *Bslack) Reload(cfg *bridge.Config) (string, error) {
 	return "", nil
 }
 
-func (b *Bslack) getAvatar(user string) string {
+func (b *Bslack) getAvatar(userid string) string {
 	var avatar string
 	if b.Users != nil {
 		for _, u := range b.Users {
-			if user == u.Name {
+			if userid == u.ID {
 				return u.Profile.Image48
 			}
 		}
@@ -224,6 +235,7 @@ func (b *Bslack) getAvatar(user string) string {
 	return avatar
 }
 
+/*
 func (b *Bslack) getChannelByName(name string) (*slack.Channel, error) {
 	if b.channels == nil {
 		return nil, fmt.Errorf("%s: channel %s not found (no channels found)", b.Account, name)
@@ -235,6 +247,7 @@ func (b *Bslack) getChannelByName(name string) (*slack.Channel, error) {
 	}
 	return nil, fmt.Errorf("%s: channel %s not found", b.Account, name)
 }
+*/
 
 func (b *Bslack) getChannelByID(ID string) (*slack.Channel, error) {
 	if b.channels == nil {
@@ -270,7 +283,7 @@ func (b *Bslack) handleSlack() {
 		message.Text = html.UnescapeString(message.Text)
 
 		// Add the avatar
-		message.Avatar = b.getAvatar(strings.ToLower(message.Username))
+		message.Avatar = b.getAvatar(message.UserID)
 
 		b.Log.Debugf("<= Message is %#v", message)
 		b.Remote <- *message
@@ -486,6 +499,10 @@ func (b *Bslack) handleMessageEvent(ev *slack.MessageEvent) (*config.Message, er
 
 	rmsg := config.Message{Text: ev.Text, Channel: channel.Name, Account: b.Account, ID: "slack " + ev.Timestamp, Extra: make(map[string][]interface{})}
 
+	if b.UseChannelID {
+		rmsg.Channel = "ID:" + channel.ID
+	}
+
 	// find the user id and name
 	if ev.User != "" && ev.SubType != messageDeleted && ev.SubType != "file_comment" {
 		user, err := b.rtm.GetUserInfo(ev.User)
@@ -682,3 +699,16 @@ func (b *Bslack) skipMessageEvent(ev *slack.MessageEvent) bool {
 	}
 	return false
 }
+
+func (b *Bslack) getChannelID(name string) string {
+	idcheck := strings.Split(name, "ID:")
+	if len(idcheck) > 1 {
+		return idcheck[1]
+	}
+	for _, channel := range b.channels {
+		if channel.Name == name {
+			return channel.ID
+		}
+	}
+	return ""
+}

changelog.md

@@ -1,3 +1,19 @@
+# v1.11.1
+
+## New features
+* slack: Add support for slack channels by ID. Closes #436
+* discord: Clip too long messages sent to discord (discord). Closes #440
+
+## Bugfix
+* general: fix possible panic on downloads that are too big #448
+* general: Fix avatar uploads to work with MediaDownloadPath. Closes #454
+* discord: allow receiving of topic changes/channel leave/joins from other bridges through the webhook
+* discord: Add a space before url in file uploads (discord). Closes #461
+* discord:  Skip empty messages being sent with the webhook (discord). #469
+* mattermost: Use nickname instead of username if defined (mattermost). Closes #452
+* irc: Stop numbers being stripped after non-color control codes (irc) (#465)
+* slack: Use UserID to look for avatar instead of username (slack). Closes #472
+
 # v1.11.0
 
 ## New features

matterbridge.go

@@ -14,7 +14,7 @@ import (
 )
 
 var (
-	version = "1.11.0"
+	version = "1.11.1"
 	githash string
 )
 

matterbridge.toml.sample

@@ -1377,6 +1377,7 @@ enable=true
     #gitter     - username/room 
     #xmpp       - channel
     #slack      - channel (without the #)
+    #           - ID:C123456 (where C123456 is the channel ID) does not work with webhook
     #discord    - channel (without the #)
     #           - ID:123456789 (where 123456789 is the channel ID) 
     #               (https://github.com/42wim/matterbridge/issues/57)

matterclient/matterclient.go

@@ -310,6 +310,11 @@ func (m *MMClient) parseMessage(rmsg *Message) {
 	switch rmsg.Raw.Event {
 	case model.WEBSOCKET_EVENT_POSTED, model.WEBSOCKET_EVENT_POST_EDITED, model.WEBSOCKET_EVENT_POST_DELETED:
 		m.parseActionPost(rmsg)
+	case "user_updated":
+		user := rmsg.Raw.Data["user"].(map[string]interface{})
+		if _, ok := user["id"].(string); ok {
+			m.UpdateUser(user["id"].(string))
+		}
 		/*
 			case model.ACTION_USER_REMOVED:
 				m.handleWsActionUserRemoved(&rmsg)
@@ -750,6 +755,16 @@ func (m *MMClient) GetUser(userId string) *model.User {
 	return m.Users[userId]
 }
 
+func (m *MMClient) UpdateUser(userId string) {
+	m.Lock()
+	defer m.Unlock()
+	res, resp := m.Client.GetUser(userId, "")
+	if resp.Error != nil {
+		return
+	}
+	m.Users[userId] = res
+}
+
 func (m *MMClient) GetUserName(userId string) string {
 	user := m.GetUser(userId)
 	if user != nil {
@@ -758,6 +773,14 @@ func (m *MMClient) GetUserName(userId string) string {
 	return ""
 }
 
+func (m *MMClient) GetNickName(userId string) string {
+	user := m.GetUser(userId)
+	if user != nil {
+		return user.Nickname
+	}
+	return ""
+}
+
 func (m *MMClient) GetStatus(userId string) string {
 	res, resp := m.Client.GetUserStatus(userId, "")
 	if resp.Error != nil {