Handle topic changes

src/irc/irc_client.cpp

@@ -274,6 +274,8 @@ void IrcClient::on_topic_received(const IrcMessage& message)
   const std::string chan_name = utils::tolower(message.arguments[1]);
   IrcChannel* channel = this->get_channel(chan_name);
   channel->topic = message.arguments[2];
+  if (channel->joined)
+    this->bridge->send_topic(this->hostname, chan_name, channel->topic);
 }
 
 void IrcClient::on_channel_completely_joined(const IrcMessage& message)

src/irc/irc_client.hpp

@@ -218,6 +218,7 @@ static const std::unordered_map<std::string, irc_callback_t> irc_callbacks = {
   {"PRIVMSG", &IrcClient::on_channel_message},
   {"353", &IrcClient::set_and_forward_user_list},
   {"332", &IrcClient::on_topic_received},
+  {"TOPIC", &IrcClient::on_topic_received},
   {"366", &IrcClient::on_channel_completely_joined},
   {"001", &IrcClient::on_welcome_message},
   {"PART", &IrcClient::on_part},