Send data to clients only if they are authenticated.

src/networkremote/outgoingdatacreator.cpp

@@ -125,6 +125,10 @@ void OutgoingDataCreator::SendAllPlaylists() {
 }
 
 void OutgoingDataCreator::ActiveChanged(Playlist* playlist) {
+  // Send the tracks of the active playlist
+  SendPlaylistSongs(playlist->id());
+
+  // Send the changed message after sending the playlist songs
   pb::remote::Message msg;
   msg.set_type(pb::remote::ACTIVE_PLAYLIST_CHANGED);
   msg.mutable_response_active_changed()->set_id(playlist->id());

src/networkremote/remoteclient.cpp

@@ -131,6 +131,7 @@ void RemoteClient::DisconnectClient(pb::remote::ReasonDisconnect reason) {
 }
 
 void RemoteClient::SendData(pb::remote::Message *msg) {
+  if (authenticated_) {
     // Serialize the message
     std::string data = msg->SerializeAsString();
 
@@ -146,6 +147,7 @@ void RemoteClient::SendData(pb::remote::Message *msg) {
     } else {
       client_->close();
     }
+  }
 }
 
 QAbstractSocket::SocketState RemoteClient::State() {