Add ShowTopicChange option. Allow/disable topic change messages (currently only from slack). Closes #353

bridge/config/config.go

@@ -11,6 +11,7 @@ import (
 
 const (
 	EVENT_JOIN_LEAVE      = "join_leave"
+	EVENT_TOPIC_CHANGE    = "topic_change"
 	EVENT_FAILURE         = "failure"
 	EVENT_REJOIN_CHANNELS = "rejoin_channels"
 	EVENT_USER_ACTION     = "user_action"
@@ -88,6 +89,7 @@ type Protocol struct {
 	RemoteNickFormat       string     // all protocols
 	Server                 string     // IRC,mattermost,XMPP,discord
 	ShowJoinPart           bool       // all protocols
+	ShowTopicChange        bool       // slack
 	ShowEmbeds             bool       // discord
 	SkipTLSVerify          bool       // IRC, mattermost
 	StripNick              bool       // all protocols

bridge/slack/slack.go

@@ -284,6 +284,9 @@ func (b *Bslack) handleSlack() {
 			msg.Event = config.EVENT_MSG_DELETE
 			msg.ID = "slack " + message.Raw.DeletedTimestamp
 		}
+		if message.Raw.SubType == "channel_topic" {
+			msg.Event = config.EVENT_TOPIC_CHANGE
+		}
 
 		// if we have a file attached, download it (in memory) and put a pointer to it in msg.Extra
 		if message.Raw.File != nil {

gateway/gateway.go

@@ -181,6 +181,9 @@ func (gw *Gateway) handleMessage(msg config.Message, dest *bridge.Bridge) []*BrM
 	if msg.Event == config.EVENT_JOIN_LEAVE && !gw.Bridges[dest.Account].Config.ShowJoinPart {
 		return brMsgIDs
 	}
+	if msg.Event == config.EVENT_TOPIC_CHANGE && !gw.Bridges[dest.Account].Config.ShowTopicChange {
+		return brMsgIDs
+	}
 	// broadcast to every out channel (irc QUIT)
 	if msg.Channel == "" && msg.Event != config.EVENT_JOIN_LEAVE {
 		log.Debug("empty channel")

matterbridge.toml.sample

@@ -126,7 +126,7 @@ ReplaceNicks=[ ["user--","user"] ]
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
 #Enable to show users joins/parts from other bridges 
-#Only works hiding/show messages from irc and mattermost bridge for now
+#Currently works for messages from the following bridges: irc, mattermost, slack
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -135,6 +135,11 @@ ShowJoinPart=false
 #OPTIONAL (default false)
 StripNick=false
 
+#Enable to show topic changes from other bridges 
+#Only works hiding/show topic changes from slack bridge for now
+#OPTIONAL (default false)
+ShowTopicChange=false
+
 ###################################################################
 #XMPP section
 ###################################################################
@@ -205,7 +210,7 @@ ReplaceNicks=[ ["user--","user"] ]
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
 #Enable to show users joins/parts from other bridges 
-#Only works hiding/show messages from irc and mattermost bridge for now
+#Currently works for messages from the following bridges: irc, mattermost, slack
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -214,6 +219,11 @@ ShowJoinPart=false
 #OPTIONAL (default false)
 StripNick=false
 
+#Enable to show topic changes from other bridges 
+#Only works hiding/show topic changes from slack bridge for now
+#OPTIONAL (default false)
+ShowTopicChange=false
+
 ###################################################################
 #hipchat section
 ###################################################################
@@ -276,7 +286,7 @@ ReplaceNicks=[ ["user--","user"] ]
 RemoteNickFormat="[{PROTOCOL}/{BRIDGE}] <{NICK}> "
 
 #Enable to show users joins/parts from other bridges 
-#Only works hiding/show messages from irc and mattermost bridge for now
+#Currently works for messages from the following bridges: irc, mattermost, slack
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -285,6 +295,11 @@ ShowJoinPart=false
 #OPTIONAL (default false)
 StripNick=false
 
+#Enable to show topic changes from other bridges 
+#Only works hiding/show topic changes from slack bridge for now
+#OPTIONAL (default false)
+ShowTopicChange=false
+
 ###################################################################
 #mattermost section
 ###################################################################
@@ -407,7 +422,7 @@ ReplaceNicks=[ ["user--","user"] ]
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
 #Enable to show users joins/parts from other bridges 
-#Only works hiding/show messages from irc and mattermost bridge for now
+#Currently works for messages from the following bridges: irc, mattermost, slack
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -416,6 +431,11 @@ ShowJoinPart=false
 #OPTIONAL (default false)
 StripNick=false
 
+#Enable to show topic changes from other bridges 
+#Only works hiding/show topic changes from slack bridge for now
+#OPTIONAL (default false)
+ShowTopicChange=false
+
 ###################################################################
 #Gitter section
 #Best to make a dedicated gitter account for the bot.
@@ -468,7 +488,7 @@ ReplaceNicks=[ ["user--","user"] ]
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
 #Enable to show users joins/parts from other bridges 
-#Only works hiding/show messages from irc and mattermost bridge for now
+#Currently works for messages from the following bridges: irc, mattermost, slack
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -477,6 +497,11 @@ ShowJoinPart=false
 #OPTIONAL (default false)
 StripNick=false
 
+#Enable to show topic changes from other bridges 
+#Only works hiding/show topic changes from slack bridge for now
+#OPTIONAL (default false)
+ShowTopicChange=false
+
 ###################################################################
 #slack section
 ###################################################################
@@ -576,7 +601,7 @@ ReplaceNicks=[ ["user--","user"] ]
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
 #Enable to show users joins/parts from other bridges 
-#Only works hiding/show messages from irc and mattermost bridge for now
+#Currently works for messages from the following bridges: irc, mattermost, slack
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -585,6 +610,11 @@ ShowJoinPart=false
 #OPTIONAL (default false)
 StripNick=false
 
+#Enable to show topic changes from other bridges 
+#Only works hiding/show topic changes from slack bridge for now
+#OPTIONAL (default false)
+ShowTopicChange=false
+
 ###################################################################
 #discord section
 ###################################################################
@@ -661,7 +691,7 @@ ReplaceNicks=[ ["user--","user"] ]
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
 #Enable to show users joins/parts from other bridges 
-#Only works hiding/show messages from irc and mattermost bridge for now
+#Currently works for messages from the following bridges: irc, mattermost, slack
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -670,6 +700,11 @@ ShowJoinPart=false
 #OPTIONAL (default false)
 StripNick=false
 
+#Enable to show topic changes from other bridges 
+#Only works hiding/show topic changes from slack bridge for now
+#OPTIONAL (default false)
+ShowTopicChange=false
+
 ###################################################################
 #telegram section
 ###################################################################
@@ -745,7 +780,7 @@ ReplaceNicks=[ ["user--","user"] ]
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
 #Enable to show users joins/parts from other bridges 
-#Only works hiding/show messages from irc and mattermost bridge for now
+#Currently works for messages from the following bridges: irc, mattermost, slack
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -754,6 +789,11 @@ ShowJoinPart=false
 #OPTIONAL (default false)
 StripNick=false
 
+#Enable to show topic changes from other bridges 
+#Only works hiding/show topic changes from slack bridge for now
+#OPTIONAL (default false)
+ShowTopicChange=false
+
 ###################################################################
 #rocketchat section
 ###################################################################
@@ -830,7 +870,7 @@ ReplaceNicks=[ ["user--","user"] ]
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
 #Enable to show users joins/parts from other bridges 
-#Only works hiding/show messages from irc and mattermost bridge for now
+#Currently works for messages from the following bridges: irc, mattermost, slack
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -839,6 +879,11 @@ ShowJoinPart=false
 #OPTIONAL (default false)
 StripNick=false
 
+#Enable to show topic changes from other bridges 
+#Only works hiding/show topic changes from slack bridge for now
+#OPTIONAL (default false)
+ShowTopicChange=false
+
 ###################################################################
 #matrix section
 ###################################################################
@@ -907,7 +952,7 @@ ReplaceNicks=[ ["user--","user"] ]
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
 #Enable to show users joins/parts from other bridges 
-#Only works hiding/show messages from irc and mattermost bridge for now
+#Currently works for messages from the following bridges: irc, mattermost, slack
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -916,6 +961,11 @@ ShowJoinPart=false
 #OPTIONAL (default false)
 StripNick=false
 
+#Enable to show topic changes from other bridges 
+#Only works hiding/show topic changes from slack bridge for now
+#OPTIONAL (default false)
+ShowTopicChange=false
+
 ###################################################################
 #steam section
 ###################################################################
@@ -978,7 +1028,7 @@ ReplaceNicks=[ ["user--","user"] ]
 RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 
 #Enable to show users joins/parts from other bridges 
-#Only works hiding/show messages from irc and mattermost bridge for now
+#Currently works for messages from the following bridges: irc, mattermost, slack
 #OPTIONAL (default false)
 ShowJoinPart=false
 
@@ -987,6 +1037,11 @@ ShowJoinPart=false
 #OPTIONAL (default false)
 StripNick=false
 
+#Enable to show topic changes from other bridges 
+#Only works hiding/show topic changes from slack bridge for now
+#OPTIONAL (default false)
+ShowTopicChange=false
+
 ###################################################################
 #API
 ###################################################################