Add support for comments from slack file uploads (slack)

bridge/config/config.go

@@ -35,6 +35,7 @@ type Message struct {
 type FileInfo struct {
 	Name    string
 	Data    *[]byte
+	Comment string
 }
 
 type ChannelInfo struct {

bridge/discord/discord.go

@@ -151,11 +151,12 @@ func (b *bdiscord) Send(msg config.Message) (string, error) {
 					fi := f.(config.FileInfo)
 					files := []*discordgo.File{}
 					files = append(files, &discordgo.File{fi.Name, "", bytes.NewReader(*fi.Data)})
-					_, err = b.c.ChannelMessageSendComplex(channelID, &discordgo.MessageSend{Content: msg.Text, Files: files})
+					_, err = b.c.ChannelMessageSendComplex(channelID, &discordgo.MessageSend{Content: msg.Username + fi.Comment, Files: files})
 					if err != nil {
 						flog.Errorf("file upload failed: %#v", err)
 					}
 				}
+				return "", nil
 			}
 		}
 

bridge/mattermost/mattermost.go

@@ -190,9 +190,9 @@ func (b *Bmattermost) Send(msg config.Message) (string, error) {
 					flog.Debugf("ERROR %#v", err)
 					return "", err
 				}
-				message = "uploaded a file: " + fi.Name
+				message = fi.Comment
 				if b.Config.PrefixMessagesWithNick {
-					message = nick + "uploaded a file: " + fi.Name
+					message = nick + fi.Comment
 				}
 				res, err = b.mc.PostMessageWithFiles(b.mc.GetChannelId(channel, ""), message, []string{id})
 			}

bridge/slack/slack.go

@@ -198,6 +198,7 @@ func (b *Bslack) Send(msg config.Message) (string, error) {
 					Reader:         bytes.NewReader(*fi.Data),
 					Filename:       fi.Name,
 					Channels:       []string{schannel.ID},
+					InitialComment: fi.Comment,
 				})
 				if err != nil {
 					flog.Errorf("uploadfile %#v", err)
@@ -294,18 +295,23 @@ func (b *Bslack) handleSlack() {
 		if message.Raw.File != nil {
 			// limit to 1MB for now
 			if message.Raw.File.Size <= 1000000 {
+				comment := ""
 				data, err := b.downloadFile(message.Raw.File.URLPrivateDownload)
 				if err != nil {
 					flog.Errorf("download %s failed %#v", message.Raw.File.URLPrivateDownload, err)
 				} else {
-					msg.Extra["file"] = append(msg.Extra["file"], config.FileInfo{Name: message.Raw.File.Name, Data: data})
-				}
+					results := regexp.MustCompile(`.*?commented: (.*)`).FindAllStringSubmatch(msg.Text, -1)
+					if len(results) > 0 {
+						comment = results[0][1]
 					}
+					msg.Extra["file"] = append(msg.Extra["file"], config.FileInfo{Name: message.Raw.File.Name, Data: data, Comment: comment})
 				}
 				flog.Debugf("Message is %#v", msg)
 				b.Remote <- msg
 			}
 		}
+	}
+}
 
 func (b *Bslack) handleSlackClient(mchan chan *MMMessage) {
 	for msg := range b.rtm.IncomingEvents {

bridge/telegram/telegram.go

@@ -114,20 +114,14 @@ func (b *Btelegram) Send(msg config.Message) (string, error) {
 				if err != nil {
 					log.Errorf("file upload failed: %#v", err)
 				}
+				if fi.Comment != "" {
+					b.sendMessage(chatid, msg.Username+fi.Comment)
 				}
 			}
+			return "", nil
 		}
-
-	m := tgbotapi.NewMessage(chatid, msg.Username+msg.Text)
-	if b.Config.MessageFormat == "HTML" {
-		m.ParseMode = tgbotapi.ModeHTML
 	}
-	res, err := b.c.Send(m)
-	if err != nil {
-		return "", err
-	}
-	return strconv.Itoa(res.MessageID), nil
-
+	return b.sendMessage(chatid, msg.Username+msg.Text)
 }
 
 func (b *Btelegram) handleRecv(updates <-chan tgbotapi.Update) {
@@ -275,3 +269,15 @@ func (b *Btelegram) handleDownload(file interface{}, msg *config.Message) {
 		}
 	}
 }
+
+func (b *Btelegram) sendMessage(chatid int64, text string) (string, error) {
+	m := tgbotapi.NewMessage(chatid, text)
+	if b.Config.MessageFormat == "HTML" {
+		m.ParseMode = tgbotapi.ModeHTML
+	}
+	res, err := b.c.Send(m)
+	if err != nil {
+		return "", err
+	}
+	return strconv.Itoa(res.MessageID), nil
+}