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[Servatrice] Use compile-time checked connections (#7631)
* [Servatrice] Use compile-time checked connections Replace the remaining SIGNAL/SLOT string connects in servatrice.cpp, smtpclient.cpp, serversocketinterface.cpp and isl_interface.cpp with pointer-to-member or lambda connects, and convert the string invokeMethod calls to the functor overload. QxtSmtp has overloaded signals, so those need qOverload. Slots inherited as protected members and the QWebSocket error connection owned by the ISL fix are left on lambdas/strings as appropriate; the vendored qxtsmtp.cpp is untouched. * Fix remaining review threads on the connection syntax - Connect the IslInterface signals straight to the inherited Server slots instead of forwarding lambdas. - Capture servatrice explicitly in the queued admin lambdas so they do not read this->servatrice after teardown. - Move the websocket newConnection connect out of the per-pool loop. - Terminate the logging category and restore pendingKey's indentation. --------- Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>
This commit is contained in:
BruebachL
GitHub
parent
a74dfeef6e
commit
429eb2a1fd
4 changed files with 76 additions and 73 deletions
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@ -58,9 +58,9 @@ void IslInterface::sharedCtor(const QSslCertificate &cert, const QSslKey &privat
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socket->setLocalCertificate(cert);
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socket->setPrivateKey(privateKey);
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connect(socket, SIGNAL(readyRead()), this, SLOT(readClient()), Qt::QueuedConnection);
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connect(socket, &QSslSocket::readyRead, this, &IslInterface::readClient, Qt::QueuedConnection);
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connect(socket, &QAbstractSocket::errorOccurred, this, &IslInterface::catchSocketError);
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connect(this, SIGNAL(outputBufferChanged()), this, SLOT(flushOutputBuffer()), Qt::QueuedConnection);
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connect(this, &IslInterface::outputBufferChanged, this, &IslInterface::flushOutputBuffer, Qt::QueuedConnection);
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}
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IslInterface::IslInterface(int _socketDescriptor,
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@ -100,8 +100,10 @@ Servatrice_GameServer::Servatrice_GameServer(Servatrice *_server,
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newThread->start();
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server->watchWorkerThread(newThread);
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QMetaObject::invokeMethod(newDatabaseInterface, "initDatabase", Qt::BlockingQueuedConnection,
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Q_ARG(QSqlDatabase, _sqlDatabase));
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QMetaObject::invokeMethod(
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newDatabaseInterface,
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[newDatabaseInterface, _sqlDatabase] { newDatabaseInterface->initDatabase(_sqlDatabase); },
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Qt::BlockingQueuedConnection);
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connectionPools.append(newPool);
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}
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@ -125,9 +127,10 @@ void Servatrice_GameServer::incomingConnection(qintptr socketDescriptor)
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auto ssi = new TcpServerSocketInterface(server, pool->getDatabaseInterface());
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ssi->moveToThread(pool->thread());
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pool->addClient();
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connect(ssi, SIGNAL(destroyed()), pool, SLOT(removeClient()));
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connect(ssi, &QObject::destroyed, pool, &Servatrice_ConnectionPool::removeClient);
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QMetaObject::invokeMethod(ssi, "initConnection", Qt::QueuedConnection, Q_ARG(int, socketDescriptor));
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QMetaObject::invokeMethod(
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ssi, [ssi, socketDescriptor] { ssi->initConnection(socketDescriptor); }, Qt::QueuedConnection);
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}
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Servatrice_ConnectionPool *Servatrice_GameServer::findLeastUsedConnectionPool()
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@ -168,13 +171,15 @@ Servatrice_WebsocketGameServer::Servatrice_WebsocketGameServer(Servatrice *_serv
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newThread->start();
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server->watchWorkerThread(newThread);
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QMetaObject::invokeMethod(newDatabaseInterface, "initDatabase", Qt::BlockingQueuedConnection,
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Q_ARG(QSqlDatabase, _sqlDatabase));
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QMetaObject::invokeMethod(
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newDatabaseInterface,
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[newDatabaseInterface, _sqlDatabase] { newDatabaseInterface->initDatabase(_sqlDatabase); },
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Qt::BlockingQueuedConnection);
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connectionPools.append(newPool);
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connect(this, SIGNAL(newConnection()), this, SLOT(onNewConnection()));
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}
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connect(this, &QWebSocketServer::newConnection, this, &Servatrice_WebsocketGameServer::onNewConnection);
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}
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Servatrice_WebsocketGameServer::~Servatrice_WebsocketGameServer()
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@ -199,9 +204,10 @@ void Servatrice_WebsocketGameServer::onNewConnection()
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*/
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// ssi->moveToThread(pool->thread());
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pool->addClient();
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connect(ssi, SIGNAL(destroyed()), pool, SLOT(removeClient()));
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connect(ssi, &QObject::destroyed, pool, &Servatrice_ConnectionPool::removeClient);
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QMetaObject::invokeMethod(ssi, "initConnection", Qt::QueuedConnection, Q_ARG(void *, nextPendingConnection()));
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void *socket = nextPendingConnection();
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QMetaObject::invokeMethod(ssi, [ssi, socket] { ssi->initConnection(socket); }, Qt::QueuedConnection);
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}
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Servatrice_ConnectionPool *Servatrice_WebsocketGameServer::findLeastUsedConnectionPool()
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@ -224,14 +230,14 @@ Servatrice_ConnectionPool *Servatrice_WebsocketGameServer::findLeastUsedConnecti
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void Servatrice_IslServer::incomingConnection(qintptr socketDescriptor)
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{
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auto thread = new QThread;
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connect(thread, SIGNAL(finished()), thread, SLOT(deleteLater()));
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connect(thread, &QThread::finished, thread, &QObject::deleteLater);
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auto interface = new IslInterface(static_cast<int>(socketDescriptor), cert, privateKey, server);
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interface->moveToThread(thread);
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connect(interface, SIGNAL(destroyed()), thread, SLOT(quit()));
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connect(interface, &QObject::destroyed, thread, &QThread::quit);
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thread->start();
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QMetaObject::invokeMethod(interface, "initServer", Qt::QueuedConnection);
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QMetaObject::invokeMethod(interface, [interface] { interface->initServer(); }, Qt::QueuedConnection);
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}
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Servatrice::Servatrice(QObject *parent)
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@ -585,15 +591,16 @@ bool Servatrice::initServer()
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auto *thread = new QThread;
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thread->setObjectName("isl_" + QString::number(prop.id));
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connect(thread, SIGNAL(finished()), thread, SLOT(deleteLater()));
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connect(thread, &QThread::finished, thread, &QObject::deleteLater);
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IslInterface *interface = new IslInterface(prop.id, prop.hostname, prop.address.toString(),
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prop.controlPort, prop.cert, cert, key, this);
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interface->moveToThread(thread);
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connect(interface, SIGNAL(destroyed()), thread, SLOT(quit()));
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connect(interface, &QObject::destroyed, thread, &QThread::quit);
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thread->start();
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QMetaObject::invokeMethod(interface, "initClient", Qt::BlockingQueuedConnection);
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QMetaObject::invokeMethod(
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interface, [interface] { interface->initClient(); }, Qt::BlockingQueuedConnection);
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}
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qDebug() << "Starting ISL server on port" << getISLNetworkPort();
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@ -610,18 +617,18 @@ bool Servatrice::initServer()
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}
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pingClock = new QTimer(this);
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connect(pingClock, SIGNAL(timeout()), this, SIGNAL(pingClockTimeout()));
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connect(pingClock, &QTimer::timeout, this, &Servatrice::pingClockTimeout);
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pingClock->start(getClientKeepAlive() * 1000);
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statusUpdateClock = new QTimer(this);
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connect(statusUpdateClock, SIGNAL(timeout()), this, SLOT(statusUpdate()));
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connect(statusUpdateClock, &QTimer::timeout, this, &Servatrice::statusUpdate);
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if (getServerStatusUpdateTime() != 0) {
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qDebug() << "Starting status update clock, interval" << getServerStatusUpdateTime() << "ms";
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statusUpdateClock->start(getServerStatusUpdateTime());
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}
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deckShareCleanupClock = new QTimer(this);
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connect(deckShareCleanupClock, SIGNAL(timeout()), this, SLOT(cleanupExpiredDeckShares()));
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connect(deckShareCleanupClock, &QTimer::timeout, this, &Servatrice::cleanupExpiredDeckShares);
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const int deckShareCleanupInterval = getDeckShareCleanupInterval();
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if (deckShareCleanupInterval > 0) {
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qDebug() << "Starting deck share cleanup clock, interval" << deckShareCleanupInterval << "ms";
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@ -1038,7 +1045,7 @@ void Servatrice::scheduleShutdown(const QString &reason, int minutes)
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nextShutdownMessageMinutes = shutdownMinutes;
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if (minutes > 0) {
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shutdownTimer = new QTimer;
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connect(shutdownTimer, SIGNAL(timeout()), this, SLOT(shutdownTimeout()));
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connect(shutdownTimer, &QTimer::timeout, this, &Servatrice::shutdownTimeout);
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shutdownTimer->start(60000);
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}
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shutdownStateMutex.unlock();
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@ -1101,25 +1108,19 @@ void Servatrice::addIslInterface(int _serverId, IslInterface *interface)
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{
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// Only call with islLock locked for writing
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islInterfaces.insert(_serverId, interface);
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connect(interface, SIGNAL(externalUserJoined(ServerInfo_User)), this, SLOT(externalUserJoined(ServerInfo_User)));
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connect(interface, SIGNAL(externalUserLeft(QString)), this, SLOT(externalUserLeft(QString)));
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connect(interface, SIGNAL(externalRoomUserJoined(int, ServerInfo_User)), this,
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SLOT(externalRoomUserJoined(int, ServerInfo_User)));
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connect(interface, SIGNAL(externalRoomUserLeft(int, QString)), this, SLOT(externalRoomUserLeft(int, QString)));
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connect(interface, SIGNAL(externalRoomSay(int, QString, QString, QString)), this,
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SLOT(externalRoomSay(int, QString, QString, QString)));
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connect(interface, SIGNAL(externalRoomRemoveMessages(int, QString, int)), this,
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SLOT(externalRoomRemoveMessages(int, QString, int)));
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connect(interface, SIGNAL(externalRoomGameListChanged(int, ServerInfo_Game)), this,
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SLOT(externalRoomGameListChanged(int, ServerInfo_Game)));
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connect(interface, SIGNAL(joinGameCommandReceived(Command_JoinGame, int, int, int, qint64)), this,
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SLOT(externalJoinGameCommandReceived(Command_JoinGame, int, int, int, qint64)));
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connect(interface, SIGNAL(gameCommandContainerReceived(CommandContainer, int, int, qint64)), this,
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SLOT(externalGameCommandContainerReceived(CommandContainer, int, int, qint64)));
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connect(interface, SIGNAL(responseReceived(Response, qint64)), this,
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SLOT(externalResponseReceived(Response, qint64)));
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connect(interface, SIGNAL(gameEventContainerReceived(GameEventContainer, qint64)), this,
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SLOT(externalGameEventContainerReceived(GameEventContainer, qint64)));
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connect(interface, &IslInterface::externalUserJoined, this, &Servatrice::externalUserJoined);
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connect(interface, &IslInterface::externalUserLeft, this, &Servatrice::externalUserLeft);
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connect(interface, &IslInterface::externalRoomUserJoined, this, &Servatrice::externalRoomUserJoined);
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connect(interface, &IslInterface::externalRoomUserLeft, this, &Servatrice::externalRoomUserLeft);
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connect(interface, &IslInterface::externalRoomSay, this, &Servatrice::externalRoomSay);
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connect(interface, &IslInterface::externalRoomRemoveMessages, this, &Servatrice::externalRoomRemoveMessages);
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connect(interface, &IslInterface::externalRoomGameListChanged, this, &Servatrice::externalRoomGameListChanged);
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connect(interface, &IslInterface::joinGameCommandReceived, this, &Servatrice::externalJoinGameCommandReceived);
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connect(interface, &IslInterface::gameCommandContainerReceived, this,
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&Servatrice::externalGameCommandContainerReceived);
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connect(interface, &IslInterface::responseReceived, this, &Servatrice::externalResponseReceived);
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connect(interface, &IslInterface::gameEventContainerReceived, this,
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&Servatrice::externalGameEventContainerReceived);
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}
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void Servatrice::removeIslInterface(int _serverId)
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@ -199,7 +199,8 @@ AbstractServerSocketInterface::AbstractServerSocketInterface(Servatrice *_server
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// Never call flushOutputQueue directly from outputQueueChanged. In case of a socket error,
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// it could lead to this object being destroyed while another function is still on the call stack. -> mutex
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// deadlocks etc.
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connect(this, SIGNAL(outputQueueChanged()), this, SLOT(flushOutputQueue()), Qt::QueuedConnection);
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connect(this, &AbstractServerSocketInterface::outputQueueChanged, this,
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&AbstractServerSocketInterface::flushOutputQueue, Qt::QueuedConnection);
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}
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bool AbstractServerSocketInterface::initSession()
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@ -1982,7 +1983,8 @@ Response::ResponseCode AbstractServerSocketInterface::cmdBanFromServer(const Com
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SessionEvent *se = userList[i]->prepareSessionEvent(event);
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userList[i]->sendProtocolItem(*se);
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delete se;
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QMetaObject::invokeMethod(userList[i], "prepareDestroy", Qt::QueuedConnection);
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QMetaObject::invokeMethod(
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userList[i], [user = userList[i]] { user->prepareDestroy(); }, Qt::QueuedConnection);
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}
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}
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@ -4191,15 +4193,15 @@ Response::ResponseCode
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AbstractServerSocketInterface::cmdUpdateServerMessage(const Command_UpdateServerMessage & /*cmd*/,
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ResponseContainer & /*rc*/)
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{
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QMetaObject::invokeMethod(server, "updateLoginMessage");
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QMetaObject::invokeMethod(servatrice, [srv = servatrice] { srv->updateLoginMessage(); });
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return Response::RespOk;
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}
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Response::ResponseCode AbstractServerSocketInterface::cmdShutdownServer(const Command_ShutdownServer &cmd,
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ResponseContainer & /*rc*/)
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{
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QMetaObject::invokeMethod(server, "scheduleShutdown", Q_ARG(QString, textFromStdString(cmd.reason())),
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Q_ARG(int, cmd.minutes()));
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QMetaObject::invokeMethod(servatrice, [srv = servatrice, reason = textFromStdString(cmd.reason()),
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minutes = cmd.minutes()] { srv->scheduleShutdown(reason, minutes); });
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return Response::RespOk;
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}
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@ -4208,7 +4210,9 @@ Response::ResponseCode AbstractServerSocketInterface::cmdReloadConfig(const Comm
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{
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logDebugMessage("Received admin command: reloading configuration");
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settingsCache->sync();
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QMetaObject::invokeMethod(server, "setRequiredFeatures", Q_ARG(QString, server->getRequiredFeatures()));
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QMetaObject::invokeMethod(servatrice, [srv = servatrice, features = servatrice->getRequiredFeatures()] {
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srv->setRequiredFeatures(features);
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});
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return Response::RespOk;
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}
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@ -4260,7 +4264,7 @@ bool AbstractServerSocketInterface::removeAdminFlagFromUser(const QString &userN
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delete se;
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}
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QMetaObject::invokeMethod(user, "prepareDestroy", Qt::QueuedConnection);
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QMetaObject::invokeMethod(user, [user] { user->prepareDestroy(); }, Qt::QueuedConnection);
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return true;
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}
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@ -4435,10 +4439,10 @@ TcpServerSocketInterface::TcpServerSocketInterface(Servatrice *_server,
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{
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socket = new QTcpSocket(this);
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socket->setSocketOption(QAbstractSocket::LowDelayOption, 1);
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connect(socket, SIGNAL(readyRead()), this, SLOT(readClient()));
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connect(socket, SIGNAL(disconnected()), this, SLOT(catchSocketDisconnected()));
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connect(socket, SIGNAL(errorOccurred(QAbstractSocket::SocketError)), this,
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SLOT(catchSocketError(QAbstractSocket::SocketError)));
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connect(socket, &QTcpSocket::readyRead, this, [this] { readClient(); });
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connect(socket, &QTcpSocket::disconnected, this, [this] { catchSocketDisconnected(); });
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connect(socket, &QTcpSocket::errorOccurred, this,
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[this](QAbstractSocket::SocketError error) { catchSocketError(error); });
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}
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TcpServerSocketInterface::~TcpServerSocketInterface()
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@ -4660,8 +4664,7 @@ void WebsocketServerSocketInterface::initConnection(void *_socket)
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}
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}
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connect(socket, SIGNAL(binaryMessageReceived(const QByteArray &)), this,
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SLOT(binaryMessageReceived(const QByteArray &)));
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connect(socket, &QWebSocket::binaryMessageReceived, this, &WebsocketServerSocketInterface::binaryMessageReceived);
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// QWebSocket::errorOccurred was added in Qt 6.5 (error() is deprecated from 6.5 on),
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// so a typed connect cannot compile against the 6.4 floor.
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#if QT_VERSION >= QT_VERSION_CHECK(6, 5, 0)
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@ -4671,7 +4674,7 @@ void WebsocketServerSocketInterface::initConnection(void *_socket)
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connect(socket, SIGNAL(error(QAbstractSocket::SocketError)), this,
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SLOT(catchSocketError(QAbstractSocket::SocketError)));
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#endif
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connect(socket, SIGNAL(disconnected()), this, SLOT(catchSocketDisconnected()));
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connect(socket, &QWebSocket::disconnected, this, [this] { catchSocketDisconnected(); });
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// Add this object to the server's list of connections before it can receive socket events.
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// Otherwise, in case of a socket error, it could be removed from the list before it is added.
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@ -25,7 +25,7 @@ static const qint64 IDLE_TIMEOUT_MS = 60000; // 60 seconds
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// MAX_RETRY_DELAY cap is applied, preventing unbounded intermediate values.
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static const int MAX_BACKOFF_SHIFT = 10;
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inline Q_LOGGING_CATEGORY(SmtpClientLog, "smtp_client")
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inline Q_LOGGING_CATEGORY(SmtpClientLog, "smtp_client");
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static QString pendingKey(const QString &userName, EmailType type, const QString &token)
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{
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@ -55,24 +55,23 @@ SmtpClient::SmtpClient(QObject *parent) : QObject(parent)
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idleTimer = new QTimer(this);
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idleTimer->setSingleShot(true);
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connect(idleTimer, SIGNAL(timeout()), this, SLOT(idleTimeout()));
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connect(idleTimer, &QTimer::timeout, this, &SmtpClient::idleTimeout);
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connect(smtp, SIGNAL(authenticated()), this, SLOT(authenticated()));
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connect(smtp, SIGNAL(authenticationFailed(const QByteArray &)), this,
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SLOT(authenticationFailed(const QByteArray &)));
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connect(smtp, SIGNAL(connected()), this, SLOT(connected()));
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connect(smtp, SIGNAL(connectionFailed(const QByteArray &)), this, SLOT(connectionFailed(const QByteArray &)));
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connect(smtp, SIGNAL(disconnected()), this, SLOT(disconnected()));
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connect(smtp, SIGNAL(encrypted()), this, SLOT(encrypted()));
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connect(smtp, SIGNAL(encryptionFailed(const QByteArray &)), this, SLOT(encryptionFailed(const QByteArray &)));
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connect(smtp, SIGNAL(finished()), this, SLOT(finished()));
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connect(smtp, SIGNAL(mailFailed(int, int, const QByteArray &)), this,
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SLOT(mailFailed(int, int, const QByteArray &)));
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connect(smtp, SIGNAL(mailSent(int)), this, SLOT(mailSent(int)));
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connect(smtp, SIGNAL(recipientRejected(int, const QString &, const QByteArray &)), this,
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SLOT(recipientRejected(int, const QString &, const QByteArray &)));
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connect(smtp, SIGNAL(senderRejected(int, const QString &, const QByteArray &)), this,
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SLOT(senderRejected(int, const QString &, const QByteArray &)));
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connect(smtp, &QxtSmtp::authenticated, this, &SmtpClient::authenticated);
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connect(smtp, qOverload<const QByteArray &>(&QxtSmtp::authenticationFailed), this,
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&SmtpClient::authenticationFailed);
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connect(smtp, &QxtSmtp::connected, this, &SmtpClient::connected);
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connect(smtp, qOverload<const QByteArray &>(&QxtSmtp::connectionFailed), this, &SmtpClient::connectionFailed);
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connect(smtp, &QxtSmtp::disconnected, this, &SmtpClient::disconnected);
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connect(smtp, &QxtSmtp::encrypted, this, &SmtpClient::encrypted);
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connect(smtp, qOverload<const QByteArray &>(&QxtSmtp::encryptionFailed), this, &SmtpClient::encryptionFailed);
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connect(smtp, &QxtSmtp::finished, this, &SmtpClient::finished);
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connect(smtp, qOverload<int, int, const QByteArray &>(&QxtSmtp::mailFailed), this, &SmtpClient::mailFailed);
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connect(smtp, &QxtSmtp::mailSent, this, &SmtpClient::mailSent);
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connect(smtp, qOverload<int, const QString &, const QByteArray &>(&QxtSmtp::recipientRejected), this,
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&SmtpClient::recipientRejected);
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connect(smtp, qOverload<int, const QString &, const QByteArray &>(&QxtSmtp::senderRejected), this,
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&SmtpClient::senderRejected);
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}
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SmtpClient::~SmtpClient()
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