fix: truncate outgoing IRC messages to ensure we don't send more than 512 bytes (#5246)

src/providers/irc/AbstractIrcServer.hpp

@@ -37,7 +37,7 @@ public:
     void disconnect();
 
     void sendMessage(const QString &channelName, const QString &message);
-    void sendRawMessage(const QString &rawMessage);
+    virtual void sendRawMessage(const QString &rawMessage);
 
     // channels
     ChannelPtr getOrAddChannel(const QString &dirtyChannelName);

src/providers/irc/IrcServer.cpp

@@ -371,6 +371,11 @@ void IrcServer::sendWhisper(const QString &target, const QString &message)
     }
 }
 
+void IrcServer::sendRawMessage(const QString &rawMessage)
+{
+    AbstractIrcServer::sendRawMessage(rawMessage.left(510));
+}
+
 bool IrcServer::hasEcho() const
 {
     return this->hasEcho_;

src/providers/irc/IrcServer.hpp

@@ -25,6 +25,8 @@ public:
      */
     void sendWhisper(const QString &target, const QString &message);
 
+    void sendRawMessage(const QString &rawMessage) override;
+
     // AbstractIrcServer interface
 protected:
     void initializeConnectionSignals(IrcConnection *connection,