Add support for ReplaceMessages using regexp to replace messages. #269

bridge/config/config.go

@@ -72,6 +72,7 @@ type Protocol struct {
 	Password               string     // IRC,mattermost,XMPP,matrix
 	PrefixMessagesWithNick bool       // mattemost, slack
 	Protocol               string     //all protocols
+	ReplaceMessages        [][]string // all messages
 	MessageQueue           int        // IRC, size of message queue for flood control
 	MessageDelay           int        // IRC, time in millisecond to wait between messages
 	MessageLength          int        // IRC, max length of a message allowed

gateway/gateway.go

@@ -287,6 +287,19 @@ func (gw *Gateway) modifyAvatar(msg config.Message, dest *bridge.Bridge) string
 func (gw *Gateway) modifyMessage(msg *config.Message) {
 	// replace :emoji: to unicode
 	msg.Text = emojilib.Replace(msg.Text)
+	br := gw.Bridges[msg.Account]
+	// loop to replace messages
+	for _, outer := range br.Config.ReplaceMessages {
+		search := outer[0]
+		replace := outer[1]
+		// TODO move compile to bridge init somewhere
+		re, err := regexp.Compile(search)
+		if err != nil {
+			log.Errorf("regexp in %s failed: %s", msg.Account, err)
+			break
+		}
+		msg.Text = re.ReplaceAllString(msg.Text, replace)
+	}
 	msg.Gateway = gw.Name
 }