X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fcommon%2Fsignalproxy.cpp;h=8499e1ada965b2e94895d41f21bd780b1b7cff35;hp=b3410e644dc572f69c832920108467892392947a;hb=2c4e055125a3e3ab7a2bd0d9c0ea33415f6ce7cc;hpb=e00e92ca69d45637f8e4d55d7cbd5913f45169cd diff --git a/src/common/signalproxy.cpp b/src/common/signalproxy.cpp index b3410e64..8499e1ad 100644 --- a/src/common/signalproxy.cpp +++ b/src/common/signalproxy.cpp @@ -1,5 +1,5 @@ /*************************************************************************** - * Copyright (C) 2005-09 by the Quassel Project * + * Copyright (C) 2005-2016 by the Quassel Project * * devel@quassel-irc.org * * * * This program is free software; you can redistribute it and/or modify * @@ -15,1237 +15,1029 @@ * You should have received a copy of the GNU General Public License * * along with this program; if not, write to the * * Free Software Foundation, Inc., * - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * ***************************************************************************/ -#include "signalproxy.h" - -#include -#include -#include +#include #include -#include -#include -#include -#include -#include #include #include -#include +#include + #ifdef HAVE_SSL -#include + #include #endif -#include -#include -#include -#include +#include "signalproxy.h" + +#include "peer.h" +#include "protocol.h" #include "syncableobject.h" #include "util.h" +#include "types.h" -// ================================================== -// PeerSignalEvent -// ================================================== -class PeerSignalEvent : public QEvent { -public: - PeerSignalEvent(SignalProxy *sender, SignalProxy::RequestType requestType, const QVariantList ¶ms) : QEvent(QEvent::Type(SignalProxy::PeerSignal)), sender(sender), requestType(requestType), params(params) {} - SignalProxy *sender; - SignalProxy::RequestType requestType; - QVariantList params; -}; +using namespace Protocol; -class RemovePeerEvent : public QEvent { +class RemovePeerEvent : public QEvent +{ public: - RemovePeerEvent(QObject *peer) : QEvent(QEvent::Type(SignalProxy::RemovePeer)), peer(peer) {} - QObject *peer; + RemovePeerEvent(Peer *peer) : QEvent(QEvent::Type(SignalProxy::RemovePeerEvent)), peer(peer) {} + Peer *peer; }; + // ================================================== // SignalRelay // ================================================== -class SignalProxy::SignalRelay : public QObject { +class SignalProxy::SignalRelay : public QObject +{ /* Q_OBJECT is not necessary or even allowed, because we implement qt_metacall ourselves (and don't use any other features of the meta object system) */ public: - SignalRelay(SignalProxy *parent) : QObject(parent), _proxy(parent) {} - inline SignalProxy *proxy() const { return _proxy; } + SignalRelay(SignalProxy *parent) : QObject(parent), _proxy(parent) {} + inline SignalProxy *proxy() const { return _proxy; } - int qt_metacall(QMetaObject::Call _c, int _id, void **_a); + int qt_metacall(QMetaObject::Call _c, int _id, void **_a); - void attachSignal(QObject *sender, int signalId, const QByteArray &funcName); - void detachSignal(QObject *sender, int signalId = -1); + void attachSignal(QObject *sender, int signalId, const QByteArray &funcName); + void detachSignal(QObject *sender, int signalId = -1); private: - struct Signal { - QObject *sender; - int signalId; - QByteArray signature; - Signal(QObject *sender, int sigId, const QByteArray &signature) : sender(sender), signalId(sigId), signature(signature) {} - Signal() : sender(0), signalId(-1) {} - }; - - SignalProxy *_proxy; - QHash _slots; + struct Signal { + QObject *sender; + int signalId; + QByteArray signature; + Signal(QObject *sender, int sigId, const QByteArray &signature) : sender(sender), signalId(sigId), signature(signature) {} + Signal() : sender(0), signalId(-1) {} + }; + + SignalProxy *_proxy; + QHash _slots; }; -void SignalProxy::SignalRelay::attachSignal(QObject *sender, int signalId, const QByteArray &funcName) { - // we ride without safetybelts here... all checking for valid method etc pp has to be done by the caller - // all connected methodIds are offset by the standard methodCount of QObject - int slotId; - for(int i = 0;; i++) { - if(!_slots.contains(i)) { - slotId = i; - break; - } - } - - QByteArray fn; - if(!funcName.isEmpty()) { - fn = QMetaObject::normalizedSignature(funcName); - } else { - fn = SIGNAL(fakeMethodSignature()); - fn = fn.replace("fakeMethodSignature()", sender->metaObject()->method(signalId).signature()); - } - - _slots[slotId] = Signal(sender, signalId, fn); - QMetaObject::connect(sender, signalId, this, QObject::staticMetaObject.methodCount() + slotId); -} - -void SignalProxy::SignalRelay::detachSignal(QObject *sender, int signalId) { - QHash::iterator slotIter = _slots.begin(); - while(slotIter != _slots.end()) { - if(slotIter->sender == sender && (signalId == -1 || slotIter->signalId == signalId)) { - slotIter = _slots.erase(slotIter); - if(signalId != -1) - break; - } else { - slotIter++; +void SignalProxy::SignalRelay::attachSignal(QObject *sender, int signalId, const QByteArray &funcName) +{ + // we ride without safetybelts here... all checking for valid method etc pp has to be done by the caller + // all connected methodIds are offset by the standard methodCount of QObject + int slotId; + for (int i = 0;; i++) { + if (!_slots.contains(i)) { + slotId = i; + break; + } } - } -} -int SignalProxy::SignalRelay::qt_metacall(QMetaObject::Call _c, int _id, void **_a) { - _id = QObject::qt_metacall(_c, _id, _a); - if(_id < 0) - return _id; - - if(_c == QMetaObject::InvokeMetaMethod) { - if(_slots.contains(_id)) { - QObject *caller = sender(); + QByteArray fn; + if (!funcName.isEmpty()) { + fn = QMetaObject::normalizedSignature(funcName); + } + else { + fn = SIGNAL(fakeMethodSignature()); +#if QT_VERSION >= 0x050000 + fn = fn.replace("fakeMethodSignature()", sender->metaObject()->method(signalId).methodSignature()); +#else + fn = fn.replace("fakeMethodSignature()", sender->metaObject()->method(signalId).signature()); +#endif + } - SignalProxy::ExtendedMetaObject *eMeta = proxy()->extendedMetaObject(caller->metaObject()); - Q_ASSERT(eMeta); + _slots[slotId] = Signal(sender, signalId, fn); - const Signal &signal = _slots[_id]; + QMetaObject::connect(sender, signalId, this, QObject::staticMetaObject.methodCount() + slotId); +} - QVariantList params; - params << signal.signature; - const QList &argTypes = eMeta->argTypes(signal.signalId); - for(int i = 0; i < argTypes.size(); i++) { - if(argTypes[i] == 0) { - qWarning() << "SignalRelay::qt_metacall(): received invalid data for argument number" << i << "of signal" << QString("%1::%2").arg(caller->metaObject()->className()).arg(caller->metaObject()->method(_id).signature()); - qWarning() << " - make sure all your data types are known by the Qt MetaSystem"; - return _id; +void SignalProxy::SignalRelay::detachSignal(QObject *sender, int signalId) +{ + QHash::iterator slotIter = _slots.begin(); + while (slotIter != _slots.end()) { + if (slotIter->sender == sender && (signalId == -1 || slotIter->signalId == signalId)) { + slotIter = _slots.erase(slotIter); + if (signalId != -1) + break; + } + else { + ++slotIter; } - params << QVariant(argTypes[i], _a[i+1]); - } - - proxy()->dispatchSignal(SignalProxy::RpcCall, params); } - _id -= _slots.count(); - } - return _id; } -// ================================================== -// Peers -// ================================================== -void SignalProxy::IODevicePeer::dispatchSignal(const RequestType &requestType, const QVariantList ¶ms) { - QVariantList packedFunc; - packedFunc << (qint16)requestType - << params; - dispatchPackedFunc(QVariant(packedFunc)); -} -bool SignalProxy::IODevicePeer::isSecure() const { -#ifdef HAVE_SSL - QSslSocket *sslSocket = qobject_cast(_device); - if(sslSocket) - return sslSocket->isEncrypted() || sslSocket->localAddress() == QHostAddress::LocalHost || sslSocket->localAddress() == QHostAddress::LocalHostIPv6; -#endif +int SignalProxy::SignalRelay::qt_metacall(QMetaObject::Call _c, int _id, void **_a) +{ + _id = QObject::qt_metacall(_c, _id, _a); + if (_id < 0) + return _id; - QAbstractSocket *socket = qobject_cast(_device); - if(socket) - return socket->localAddress() == QHostAddress::LocalHost || socket->localAddress() == QHostAddress::LocalHostIPv6; + if (_c == QMetaObject::InvokeMetaMethod) { + if (_slots.contains(_id)) { + QObject *caller = sender(); - return false; -} + SignalProxy::ExtendedMetaObject *eMeta = proxy()->extendedMetaObject(caller->metaObject()); + Q_ASSERT(eMeta); -QString SignalProxy::IODevicePeer::address() const { - QAbstractSocket *socket = qobject_cast(_device); - if(socket) - return socket->peerAddress().toString(); - else - return QString(); -} + const Signal &signal = _slots[_id]; -void SignalProxy::SignalProxyPeer::dispatchSignal(const RequestType &requestType, const QVariantList ¶ms) { - Qt::ConnectionType type = QThread::currentThread() == receiver->thread() - ? Qt::DirectConnection - : Qt::QueuedConnection; + QVariantList params; - if(type == Qt::DirectConnection) { - receiver->receivePeerSignal(sender, requestType, params); - } else { - QCoreApplication::postEvent(receiver, new PeerSignalEvent(sender, requestType, params)); - } + const QList &argTypes = eMeta->argTypes(signal.signalId); + for (int i = 0; i < argTypes.size(); i++) { + if (argTypes[i] == 0) { +#if QT_VERSION >= 0x050000 + qWarning() << "SignalRelay::qt_metacall(): received invalid data for argument number" << i << "of signal" << QString("%1::%2").arg(caller->metaObject()->className()).arg(caller->metaObject()->method(signal.signalId).methodSignature().constData()); +#else + qWarning() << "SignalRelay::qt_metacall(): received invalid data for argument number" << i << "of signal" << QString("%1::%2").arg(caller->metaObject()->className()).arg(caller->metaObject()->method(signal.signalId).signature()); +#endif + qWarning() << " - make sure all your data types are known by the Qt MetaSystem"; + return _id; + } + params << QVariant(argTypes[i], _a[i+1]); + } + + if (proxy()->_restrictMessageTarget) { + for (auto peer : proxy()->_restrictedTargets) { + if (peer != nullptr) + proxy()->dispatch(peer, RpcCall(signal.signature, params)); + } + } else + proxy()->dispatch(RpcCall(signal.signature, params)); + } + _id -= _slots.count(); + } + return _id; } + // ================================================== // SignalProxy // ================================================== -SignalProxy::SignalProxy(QObject* parent) - : QObject(parent) +SignalProxy::SignalProxy(QObject *parent) + : QObject(parent) { - setProxyMode(Client); - init(); + setProxyMode(Client); + init(); } -SignalProxy::SignalProxy(ProxyMode mode, QObject* parent) - : QObject(parent) -{ - setProxyMode(mode); - init(); -} -SignalProxy::SignalProxy(ProxyMode mode, QIODevice* device, QObject* parent) - : QObject(parent) +SignalProxy::SignalProxy(ProxyMode mode, QObject *parent) + : QObject(parent) { - setProxyMode(mode); - addPeer(device); - init(); + setProxyMode(mode); + init(); } -SignalProxy::~SignalProxy() { - QHash::iterator classIter = _syncSlave.begin(); - while(classIter != _syncSlave.end()) { - ObjectId::iterator objIter = classIter->begin(); - while(objIter != classIter->end()) { - SyncableObject *obj = objIter.value(); - objIter = classIter->erase(objIter); - obj->stopSynchronize(this); + +SignalProxy::~SignalProxy() +{ + QHash::iterator classIter = _syncSlave.begin(); + while (classIter != _syncSlave.end()) { + ObjectId::iterator objIter = classIter->begin(); + while (objIter != classIter->end()) { + SyncableObject *obj = objIter.value(); + objIter = classIter->erase(objIter); + obj->stopSynchronize(this); + } + ++classIter; } - classIter++; - } - _syncSlave.clear(); + _syncSlave.clear(); - removeAllPeers(); + removeAllPeers(); } -void SignalProxy::setProxyMode(ProxyMode mode) { - PeerHash::iterator peer = _peers.begin(); - while(peer != _peers.end()) { - if((*peer)->type() != AbstractPeer::IODevicePeer) { - IODevicePeer *ioPeer = static_cast(*peer); - if(ioPeer->isOpen()) { - qWarning() << "SignalProxy: Cannot change proxy mode while connected"; + +void SignalProxy::setProxyMode(ProxyMode mode) +{ + if (_peers.count()) { + qWarning() << Q_FUNC_INFO << "Cannot change proxy mode while connected"; return; - } - } - if((*peer)->type() != AbstractPeer::SignalProxyPeer) { - qWarning() << "SignalProxy: Cannot change proxy mode while connected to another internal SignalProxy"; - return; } - peer++; - } - - _proxyMode = mode; - if(mode == Server) - initServer(); - else - initClient(); -} -void SignalProxy::init() { - _signalRelay = new SignalRelay(this); - connect(&_heartBeatTimer, SIGNAL(timeout()), this, SLOT(sendHeartBeat())); - setHeartBeatInterval(30); - setMaxHeartBeatCount(2); - _secure = false; - updateSecureState(); + _proxyMode = mode; + if (mode == Server) + initServer(); + else + initClient(); } -void SignalProxy::initServer() { -} -void SignalProxy::initClient() { - attachSlot("__objectRenamed__", this, SLOT(objectRenamed(QByteArray, QString, QString))); +void SignalProxy::init() +{ + _heartBeatInterval = 0; + _maxHeartBeatCount = 0; + _signalRelay = new SignalRelay(this); + setHeartBeatInterval(30); + setMaxHeartBeatCount(2); + _secure = false; + updateSecureState(); } -bool SignalProxy::addPeer(QIODevice* iodev) { - if(!iodev) - return false; - if(_peers.contains(iodev)) - return true; +void SignalProxy::initServer() +{ +} - if(proxyMode() == Client && !_peers.isEmpty()) { - qWarning("SignalProxy: only one peer allowed in client mode!"); - return false; - } - if(!iodev->isOpen()) { - qWarning("SignalProxy::addPeer(QIODevice *iodev): iodev needs to be open!"); - return false; - } +void SignalProxy::initClient() +{ + attachSlot("__objectRenamed__", this, SLOT(objectRenamed(QByteArray,QString,QString))); +} - connect(iodev, SIGNAL(disconnected()), this, SLOT(removePeerBySender())); - connect(iodev, SIGNAL(readyRead()), this, SLOT(dataAvailable())); -#ifdef HAVE_SSL - QSslSocket *sslSocket = qobject_cast(iodev); - if(sslSocket) { - connect(iodev, SIGNAL(encrypted()), this, SLOT(updateSecureState())); - } -#endif +void SignalProxy::setHeartBeatInterval(int secs) +{ + if (_heartBeatInterval != secs) { + _heartBeatInterval = secs; + emit heartBeatIntervalChanged(secs); + } +} - if(!iodev->parent()) - iodev->setParent(this); - _peers[iodev] = new IODevicePeer(iodev, iodev->property("UseCompression").toBool()); +void SignalProxy::setMaxHeartBeatCount(int max) +{ + if (_maxHeartBeatCount != max) { + _maxHeartBeatCount = max; + emit maxHeartBeatCountChanged(max); + } +} - if(_peers.count() == 1) - emit connected(); - updateSecureState(); - return true; -} +bool SignalProxy::addPeer(Peer *peer) +{ + if (!peer) + return false; -void SignalProxy::setHeartBeatInterval(int secs) { - if(secs != _heartBeatInterval) { - _heartBeatInterval = secs; - _heartBeatTimer.setInterval(secs * 1000); - } -} + if (_peers.contains(peer)) + return true; -void SignalProxy::setMaxHeartBeatCount(int max) { - if(max < 0) - _heartBeatTimer.stop(); - else { - _maxHeartBeatCount = max; - if(!_heartBeatTimer.isActive()) - _heartBeatTimer.start(); - } -} + if (!peer->isOpen()) { + qWarning("SignalProxy: peer needs to be open!"); + return false; + } + + if (proxyMode() == Client) { + if (!_peers.isEmpty()) { + qWarning("SignalProxy: only one peer allowed in client mode!"); + return false; + } + connect(peer, SIGNAL(lagUpdated(int)), SIGNAL(lagUpdated(int))); + } -bool SignalProxy::addPeer(SignalProxy* proxy) { - if(!proxy) - return false; + connect(peer, SIGNAL(disconnected()), SLOT(removePeerBySender())); + connect(peer, SIGNAL(secureStateChanged(bool)), SLOT(updateSecureState())); - if(proxyMode() == proxy->proxyMode()) { - qWarning() << "SignalProxy::addPeer(): adding a SignalProxy as peer requires one proxy to be server and one client!"; - return false; - } + if (!peer->parent()) + peer->setParent(this); - if(_peers.contains(proxy)) { - return true; - } + if (peer->_id < 0) { + peer->_id = nextPeerId(); + peer->_connectedSince = QDateTime::currentDateTimeUtc(); + } - if(proxyMode() == Client && !_peers.isEmpty()) { - qWarning("SignalProxy: only one peer allowed in client mode!"); - return false; - } + _peers.insert(peer); + _peerMap[peer->_id] = peer; - _peers[proxy] = new SignalProxyPeer(this, proxy); - proxy->addPeer(this); + peer->setSignalProxy(this); - if(_peers.count() == 1) - emit connected(); + if (_peers.count() == 1) + emit connected(); - updateSecureState(); - return true; + updateSecureState(); + return true; } -void SignalProxy::removeAllPeers() { - Q_ASSERT(proxyMode() == Server || _peers.count() <= 1); - // wee need to copy that list since we modify it in the loop - QList peers = _peers.keys(); - foreach(QObject *peer, peers) { - removePeer(peer); - } + +void SignalProxy::removeAllPeers() +{ + Q_ASSERT(proxyMode() == Server || _peers.count() <= 1); + // wee need to copy that list since we modify it in the loop + QSet peers = _peers; + foreach(Peer *peer, peers) { + removePeer(peer); + } } -void SignalProxy::removePeer(QObject* dev) { - if(_peers.isEmpty()) { - qWarning() << "SignalProxy::removePeer(): No peers in use!"; - return; - } - Q_ASSERT(dev); - if(!_peers.contains(dev)) { - qWarning() << "SignalProxy: unknown Peer" << dev; - return; - } +void SignalProxy::removePeer(Peer *peer) +{ + if (!peer) { + qWarning() << Q_FUNC_INFO << "Trying to remove a null peer!"; + return; + } - AbstractPeer *peer = _peers[dev]; - _peers.remove(dev); + if (_peers.isEmpty()) { + qWarning() << "SignalProxy::removePeer(): No peers in use!"; + return; + } - disconnect(dev, 0, this, 0); - if(peer->type() == AbstractPeer::IODevicePeer) - emit peerRemoved(static_cast(dev)); + if (!_peers.contains(peer)) { + qWarning() << "SignalProxy: unknown Peer" << peer; + return; + } - if(peer->type() == AbstractPeer::SignalProxyPeer) { - SignalProxy *proxy = static_cast(dev); - if(proxy->_peers.contains(this)) - proxy->removePeer(this); - } + disconnect(peer, 0, this, 0); + peer->setSignalProxy(0); - if(dev->parent() == this) - dev->deleteLater(); + _peerMap.remove(peer->_id); + _peers.remove(peer); + emit peerRemoved(peer); - delete peer; + if (peer->parent() == this) + peer->deleteLater(); - updateSecureState(); + updateSecureState(); - if(_peers.isEmpty()) - emit disconnected(); + if (_peers.isEmpty()) + emit disconnected(); } -void SignalProxy::removePeerBySender() { - removePeer(sender()); + +void SignalProxy::removePeerBySender() +{ + removePeer(qobject_cast(sender())); } -void SignalProxy::renameObject(const SyncableObject *obj, const QString &newname, const QString &oldname) { - if(proxyMode() == Client) - return; - const QMetaObject *meta = obj->syncMetaObject(); - const QByteArray className(meta->className()); - objectRenamed(className, newname, oldname); +void SignalProxy::renameObject(const SyncableObject *obj, const QString &newname, const QString &oldname) +{ + if (proxyMode() == Client) + return; - QVariantList params; - params << "__objectRenamed__" << className << newname << oldname; - dispatchSignal(RpcCall, params); -} + const QMetaObject *meta = obj->syncMetaObject(); + const QByteArray className(meta->className()); + objectRenamed(className, newname, oldname); -void SignalProxy::objectRenamed(const QByteArray &classname, const QString &newname, const QString &oldname) { - if(_syncSlave.contains(classname) && _syncSlave[classname].contains(oldname) && oldname != newname) { - SyncableObject *obj = _syncSlave[classname][newname] = _syncSlave[classname].take(oldname); - requestInit(obj); - } + dispatch(RpcCall("__objectRenamed__", QVariantList() << className << newname << oldname)); } -const QMetaObject *SignalProxy::metaObject(const QObject *obj) { - if(const SyncableObject *syncObject = qobject_cast(obj)) - return syncObject->syncMetaObject(); - else - return obj->metaObject(); -} -SignalProxy::ExtendedMetaObject *SignalProxy::extendedMetaObject(const QMetaObject *meta) const { - if(_extendedMetaObjects.contains(meta)) - return _extendedMetaObjects[meta]; - else - return 0; +void SignalProxy::objectRenamed(const QByteArray &classname, const QString &newname, const QString &oldname) +{ + if (_syncSlave.contains(classname) && _syncSlave[classname].contains(oldname) && oldname != newname) { + SyncableObject *obj = _syncSlave[classname][newname] = _syncSlave[classname].take(oldname); + requestInit(obj); + } } -SignalProxy::ExtendedMetaObject *SignalProxy::createExtendedMetaObject(const QMetaObject *meta, bool checkConflicts) { - if(!_extendedMetaObjects.contains(meta)) { - _extendedMetaObjects[meta] = new ExtendedMetaObject(meta, checkConflicts); - } - return _extendedMetaObjects[meta]; -} -bool SignalProxy::attachSignal(QObject *sender, const char* signal, const QByteArray& sigName) { - const QMetaObject* meta = sender->metaObject(); - QByteArray sig(meta->normalizedSignature(signal).mid(1)); - int methodId = meta->indexOfMethod(sig.constData()); - if(methodId == -1 || meta->method(methodId).methodType() != QMetaMethod::Signal) { - qWarning() << "SignalProxy::attachSignal(): No such signal" << signal; - return false; - } - - createExtendedMetaObject(meta); - _signalRelay->attachSignal(sender, methodId, sigName); - - disconnect(sender, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *))); - connect(sender, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *))); - return true; +const QMetaObject *SignalProxy::metaObject(const QObject *obj) +{ + if (const SyncableObject *syncObject = qobject_cast(obj)) + return syncObject->syncMetaObject(); + else + return obj->metaObject(); } -bool SignalProxy::attachSlot(const QByteArray& sigName, QObject* recv, const char* slot) { - const QMetaObject* meta = recv->metaObject(); - int methodId = meta->indexOfMethod(meta->normalizedSignature(slot).mid(1)); - if(methodId == -1 || meta->method(methodId).methodType() == QMetaMethod::Method) { - qWarning() << "SignalProxy::attachSlot(): No such slot" << slot; - return false; - } - createExtendedMetaObject(meta); +SignalProxy::ExtendedMetaObject *SignalProxy::extendedMetaObject(const QMetaObject *meta) const +{ + if (_extendedMetaObjects.contains(meta)) + return _extendedMetaObjects[meta]; + else + return 0; +} - QByteArray funcName = QMetaObject::normalizedSignature(sigName.constData()); - _attachedSlots.insert(funcName, qMakePair(recv, methodId)); - disconnect(recv, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *))); - connect(recv, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *))); - return true; +SignalProxy::ExtendedMetaObject *SignalProxy::createExtendedMetaObject(const QMetaObject *meta, bool checkConflicts) +{ + if (!_extendedMetaObjects.contains(meta)) { + _extendedMetaObjects[meta] = new ExtendedMetaObject(meta, checkConflicts); + } + return _extendedMetaObjects[meta]; } -void SignalProxy::synchronize(SyncableObject *obj) { - createExtendedMetaObject(obj, true); - // attaching as slave to receive sync Calls - QByteArray className(obj->syncMetaObject()->className()); - _syncSlave[className][obj->objectName()] = obj; +bool SignalProxy::attachSignal(QObject *sender, const char *signal, const QByteArray &sigName) +{ + const QMetaObject *meta = sender->metaObject(); + QByteArray sig(meta->normalizedSignature(signal).mid(1)); + int methodId = meta->indexOfMethod(sig.constData()); + if (methodId == -1 || meta->method(methodId).methodType() != QMetaMethod::Signal) { + qWarning() << "SignalProxy::attachSignal(): No such signal" << signal; + return false; + } - if(proxyMode() == Server) { - obj->setInitialized(); - emit objectInitialized(obj); - } else { - if(obj->isInitialized()) - emit objectInitialized(obj); - else - requestInit(obj); - } + createExtendedMetaObject(meta); + _signalRelay->attachSignal(sender, methodId, sigName); - obj->synchronize(this); + disconnect(sender, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *))); + connect(sender, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *))); + return true; } -void SignalProxy::detachObject(QObject *obj) { - detachSignals(obj); - detachSlots(obj); -} -void SignalProxy::detachSignals(QObject *sender) { - _signalRelay->detachSignal(sender); -} +bool SignalProxy::attachSlot(const QByteArray &sigName, QObject *recv, const char *slot) +{ + const QMetaObject *meta = recv->metaObject(); + int methodId = meta->indexOfMethod(meta->normalizedSignature(slot).mid(1)); + if (methodId == -1 || meta->method(methodId).methodType() == QMetaMethod::Method) { + qWarning() << "SignalProxy::attachSlot(): No such slot" << slot; + return false; + } -void SignalProxy::detachSlots(QObject* receiver) { - SlotHash::iterator slotIter = _attachedSlots.begin(); - while(slotIter != _attachedSlots.end()) { - if(slotIter.value().first == receiver) { - slotIter = _attachedSlots.erase(slotIter); - } else - slotIter++; - } -} + createExtendedMetaObject(meta); -void SignalProxy::stopSynchronize(SyncableObject *obj) { - // we can't use a className here, since it might be effed up, if we receive the call as a result of a decon - // gladly the objectName() is still valid. So we have only to iterate over the classes not each instance! *sigh* - QHash::iterator classIter = _syncSlave.begin(); - while(classIter != _syncSlave.end()) { - if(classIter->contains(obj->objectName()) && classIter.value()[obj->objectName()] == obj) { - classIter->remove(obj->objectName()); - break; - } - classIter++; - } - obj->stopSynchronize(this); -} + QByteArray funcName = QMetaObject::normalizedSignature(sigName.constData()); + _attachedSlots.insert(funcName, qMakePair(recv, methodId)); -void SignalProxy::dispatchSignal(const RequestType &requestType, const QVariantList ¶ms) { - QVariant packedFunc(QVariantList() << (qint16)requestType << params); - PeerHash::iterator peer = _peers.begin(); - while(peer != _peers.end()) { - switch((*peer)->type()) { - case AbstractPeer::IODevicePeer: - { - IODevicePeer *ioPeer = static_cast(*peer); - if(ioPeer->isOpen()) - ioPeer->dispatchPackedFunc(packedFunc); - else - QCoreApplication::postEvent(this, new RemovePeerEvent(peer.key())); - } - break; - case AbstractPeer::SignalProxyPeer: - (*peer)->dispatchSignal(requestType, params); - break; - default: - Q_ASSERT(false); // there shouldn't be any peers with wrong / unknown type - } - peer++; - } + disconnect(recv, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *))); + connect(recv, SIGNAL(destroyed(QObject *)), this, SLOT(detachObject(QObject *))); + return true; } -void SignalProxy::receivePackedFunc(AbstractPeer *sender, const QVariant &packedFunc) { - QVariantList params(packedFunc.toList()); - if(params.isEmpty()) { - qWarning() << "SignalProxy::receivePeerSignal(): received incompatible Data:" << packedFunc; - return; - } +void SignalProxy::synchronize(SyncableObject *obj) +{ + createExtendedMetaObject(obj, true); - RequestType requestType = (RequestType)params.takeFirst().value(); - receivePeerSignal(sender, requestType, params); -} + // attaching as slave to receive sync Calls + QByteArray className(obj->syncMetaObject()->className()); + _syncSlave[className][obj->objectName()] = obj; -void SignalProxy::receivePeerSignal(AbstractPeer *sender, const RequestType &requestType, const QVariantList ¶ms) { - switch(requestType) { - // list all RequestTypes that shouldnot trigger a heartbeat counter reset here - case HeartBeatReply: - break; - default: - if(sender->type() == AbstractPeer::IODevicePeer) { - IODevicePeer *ioPeer = static_cast(sender); - ioPeer->sentHeartBeats = 0; + if (proxyMode() == Server) { + obj->setInitialized(); + emit objectInitialized(obj); + } + else { + if (obj->isInitialized()) + emit objectInitialized(obj); + else + requestInit(obj); } - } - - // qDebug() << "SignalProxy::receivePeerSignal)" << requestType << params; - switch(requestType) { - case RpcCall: - if(params.empty()) - qWarning() << "SignalProxy::receivePeerSignal(): received empty RPC-Call"; - else - handleSignal(params); - //handleSignal(params.takeFirst().toByteArray(), params); - break; - - case Sync: - handleSync(sender, params); - break; - case InitRequest: - handleInitRequest(sender, params); - break; + obj->synchronize(this); +} - case InitData: - handleInitData(sender, params); - break; - case HeartBeat: - receiveHeartBeat(sender, params); - break; +void SignalProxy::detachObject(QObject *obj) +{ + detachSignals(obj); + detachSlots(obj); +} - case HeartBeatReply: - receiveHeartBeatReply(sender, params); - break; - default: - qWarning() << "SignalProxy::receivePeerSignal(): received undefined CallType" << requestType << params; - } +void SignalProxy::detachSignals(QObject *sender) +{ + _signalRelay->detachSignal(sender); } -void SignalProxy::receivePeerSignal(SignalProxy *sender, const RequestType &requestType, const QVariantList ¶ms) { - if(!_peers.contains(sender)) { - // we output only the pointer value. otherwise Qt would try to pretty print. As the object might already been destroyed, this is not a good idea. - qWarning() << "SignalProxy::receivePeerSignal(): received Signal from unknown Proxy" << reinterpret_cast(sender); - return; - } - receivePeerSignal(_peers[sender], requestType, params); -} -void SignalProxy::handleSync(AbstractPeer *sender, QVariantList params) { - if(params.count() < 3) { - qWarning() << "received invalid Sync call" << params; - return; - } - - QByteArray className = params.takeFirst().toByteArray(); - QString objectName = params.takeFirst().toString(); - QByteArray slot = params.takeFirst().toByteArray(); - - if(!_syncSlave.contains(className) || !_syncSlave[className].contains(objectName)) { - qWarning() << QString("no registered receiver for sync call: %1::%2 (objectName=\"%3\"). Params are:").arg(QString(className)).arg(QString(slot)).arg(objectName) - << params; - return; - } - - SyncableObject *receiver = _syncSlave[className][objectName]; - ExtendedMetaObject *eMeta = extendedMetaObject(receiver); - if(!eMeta->slotMap().contains(slot)) { - qWarning() << QString("no matching slot for sync call: %1::%2 (objectName=\"%3\"). Params are:").arg(QString(className)).arg(QString(slot)).arg(objectName) - << params; - return; - } - - int slotId = eMeta->slotMap()[slot]; - if(proxyMode() != eMeta->receiverMode(slotId)) { - qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed. Wrong ProxyMode!", eMeta->methodName(slotId).constData()); - return; - } - - QVariant returnValue((QVariant::Type)eMeta->returnType(slotId)); - if(!invokeSlot(receiver, slotId, params, returnValue)) { - qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed ", eMeta->methodName(slotId).constData()); - return; - } - - - if(returnValue.type() != QVariant::Invalid && eMeta->receiveMap().contains(slotId)) { - int receiverId = eMeta->receiveMap()[slotId]; - QVariantList returnParams; - returnParams << className - << objectName - << eMeta->methodName(receiverId); - //QByteArray(receiver->metaObject()->method(receiverId).signature()); - if(eMeta->argTypes(receiverId).count() > 1) - returnParams << params; - returnParams << returnValue; - sender->dispatchSignal(Sync, returnParams); - } - - // send emit update signal - invokeSlot(receiver, eMeta->updatedRemotelyId()); +void SignalProxy::detachSlots(QObject *receiver) +{ + SlotHash::iterator slotIter = _attachedSlots.begin(); + while (slotIter != _attachedSlots.end()) { + if (slotIter.value().first == receiver) { + slotIter = _attachedSlots.erase(slotIter); + } + else + ++slotIter; + } } -void SignalProxy::handleInitRequest(AbstractPeer *sender, const QVariantList ¶ms) { - if(params.count() != 2) { - qWarning() << "SignalProxy::handleInitRequest() received initRequest with invalid param Count:" - << params; - return; - } - - QByteArray className(params[0].toByteArray()); - QString objectName(params[1].toString()); - if(!_syncSlave.contains(className)) { - qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Class:" - << className; - return; - } +void SignalProxy::stopSynchronize(SyncableObject *obj) +{ + // we can't use a className here, since it might be effed up, if we receive the call as a result of a decon + // gladly the objectName() is still valid. So we have only to iterate over the classes not each instance! *sigh* + QHash::iterator classIter = _syncSlave.begin(); + while (classIter != _syncSlave.end()) { + if (classIter->contains(obj->objectName()) && classIter.value()[obj->objectName()] == obj) { + classIter->remove(obj->objectName()); + break; + } + ++classIter; + } + obj->stopSynchronize(this); +} - if(!_syncSlave[className].contains(objectName)) { - qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Object:" - << className << objectName; - return; - } - SyncableObject *obj = _syncSlave[className][objectName]; +template +void SignalProxy::dispatch(const T &protoMessage) +{ + foreach (Peer *peer, _peers) { + if (peer->isOpen()) + peer->dispatch(protoMessage); + else + QCoreApplication::postEvent(this, new ::RemovePeerEvent(peer)); + } +} - QVariantList params_; - params_ << className - << objectName - << initData(obj); - sender->dispatchSignal(InitData, params_); +template +void SignalProxy::dispatch(Peer *peer, const T &protoMessage) +{ + if (peer && peer->isOpen()) + peer->dispatch(protoMessage); + else + QCoreApplication::postEvent(this, new ::RemovePeerEvent(peer)); } -void SignalProxy::handleInitData(AbstractPeer *sender, const QVariantList ¶ms) { - Q_UNUSED(sender) - if(params.count() != 3) { - qWarning() << "SignalProxy::handleInitData() received initData with invalid param Count:" - << params; - return; - } - - QByteArray className(params[0].toByteArray()); - QString objectName(params[1].toString()); - QVariantMap propertyMap(params[2].toMap()); - - if(!_syncSlave.contains(className)) { - qWarning() << "SignalProxy::handleInitData() received initData for unregistered Class:" - << className; - return; - } - - if(!_syncSlave[className].contains(objectName)) { - qWarning() << "SignalProxy::handleInitData() received initData for unregistered Object:" - << className << objectName; - return; - } - - SyncableObject *obj = _syncSlave[className][objectName]; - setInitData(obj, propertyMap); -} -//void SignalProxy::handleSignal(const QByteArray &funcName, const QVariantList ¶ms) { -void SignalProxy::handleSignal(const QVariantList &data) { - QVariantList params = data; - QByteArray funcName = params.takeFirst().toByteArray(); - - QObject* receiver; - int methodId; - SlotHash::const_iterator slot = _attachedSlots.constFind(funcName); - while(slot != _attachedSlots.constEnd() && slot.key() == funcName) { - receiver = (*slot).first; - methodId = (*slot).second; - if(!invokeSlot(receiver, methodId, params)) { - ExtendedMetaObject *eMeta = extendedMetaObject(receiver); - qWarning("SignalProxy::handleSignal(): invokeMethod for \"%s\" failed ", eMeta->methodName(methodId).constData()); +void SignalProxy::handle(Peer *peer, const SyncMessage &syncMessage) +{ + if (!_syncSlave.contains(syncMessage.className) || !_syncSlave[syncMessage.className].contains(syncMessage.objectName)) { + qWarning() << QString("no registered receiver for sync call: %1::%2 (objectName=\"%3\"). Params are:").arg(syncMessage.className, syncMessage.slotName, syncMessage.objectName) + << syncMessage.params; + return; } - slot++; - } -} -bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms, QVariant &returnValue) { - ExtendedMetaObject *eMeta = extendedMetaObject(receiver); - const QList args = eMeta->argTypes(methodId); - const int numArgs = params.count() < args.count() - ? params.count() - : args.count(); - - if(eMeta->minArgCount(methodId) > params.count()) { - qWarning() << "SignalProxy::invokeSlot(): not enough params to invoke" << eMeta->methodName(methodId); - return false; - } - - void *_a[] = {0, // return type... - 0, 0, 0, 0 , 0, // and 10 args - that's the max size qt can handle with signals and slots - 0, 0, 0, 0 , 0}; - - // check for argument compatibility and build params array - for(int i = 0; i < numArgs; i++) { - if(!params[i].isValid()) { - qWarning() << "SignalProxy::invokeSlot(): received invalid data for argument number" << i << "of method" << QString("%1::%2()").arg(receiver->metaObject()->className()).arg(receiver->metaObject()->method(methodId).signature()); - qWarning() << " - make sure all your data types are known by the Qt MetaSystem"; - return false; - } - if(args[i] != QMetaType::type(params[i].typeName())) { - qWarning() << "SignalProxy::invokeSlot(): incompatible param types to invoke" << eMeta->methodName(methodId); - return false; + SyncableObject *receiver = _syncSlave[syncMessage.className][syncMessage.objectName]; + ExtendedMetaObject *eMeta = extendedMetaObject(receiver); + if (!eMeta->slotMap().contains(syncMessage.slotName)) { + qWarning() << QString("no matching slot for sync call: %1::%2 (objectName=\"%3\"). Params are:").arg(syncMessage.className, syncMessage.slotName, syncMessage.objectName) + << syncMessage.params; + return; } - _a[i+1] = const_cast(params[i].constData()); - } - if(returnValue.type() != QVariant::Invalid) - _a[0] = const_cast(returnValue.constData()); + int slotId = eMeta->slotMap()[syncMessage.slotName]; + if (proxyMode() != eMeta->receiverMode(slotId)) { + qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed. Wrong ProxyMode!", eMeta->methodName(slotId).constData()); + return; + } - Qt::ConnectionType type = QThread::currentThread() == receiver->thread() - ? Qt::DirectConnection - : Qt::QueuedConnection; + // We can no longer construct a QVariant from QMetaType::Void + QVariant returnValue; + int returnType = eMeta->returnType(slotId); + if (returnType != QMetaType::Void) + returnValue = QVariant(static_cast(returnType)); - if(type == Qt::DirectConnection) { - return receiver->qt_metacall(QMetaObject::InvokeMetaMethod, methodId, _a) < 0; - } else { - qWarning() << "Queued Connections are not implemented yet"; - // note to self: qmetaobject.cpp:990 ff - return false; - } + if (!invokeSlot(receiver, slotId, syncMessage.params, returnValue, peer)) { + qWarning("SignalProxy::handleSync(): invokeMethod for \"%s\" failed ", eMeta->methodName(slotId).constData()); + return; + } -} + if (returnValue.type() != QVariant::Invalid && eMeta->receiveMap().contains(slotId)) { + int receiverId = eMeta->receiveMap()[slotId]; + QVariantList returnParams; + if (eMeta->argTypes(receiverId).count() > 1) + returnParams << syncMessage.params; + returnParams << returnValue; + peer->dispatch(SyncMessage(syncMessage.className, syncMessage.objectName, eMeta->methodName(receiverId), returnParams)); + } -bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms) { - QVariant ret; - return invokeSlot(receiver, methodId, params, ret); + // send emit update signal + invokeSlot(receiver, eMeta->updatedRemotelyId()); } -void SignalProxy::dataAvailable() { - // yet again. it's a private slot. no need for checks. - QIODevice* ioDev = qobject_cast(sender()); - Q_ASSERT(_peers.contains(ioDev) && _peers[ioDev]->type() == AbstractPeer::IODevicePeer); - IODevicePeer *peer = static_cast(_peers[ioDev]); - QVariant var; - while(peer->readData(var)) - receivePackedFunc(peer, var); -} -void SignalProxy::writeDataToDevice(QIODevice *dev, const QVariant &item, bool compressed) { - QAbstractSocket* sock = qobject_cast(dev); - if(!dev->isOpen() || (sock && sock->state()!=QAbstractSocket::ConnectedState)) { - qWarning("SignalProxy: Can't call write on a closed device"); - return; - } +void SignalProxy::handle(Peer *peer, const InitRequest &initRequest) +{ + if (!_syncSlave.contains(initRequest.className)) { + qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Class:" + << initRequest.className; + return; + } - QByteArray block; - QDataStream out(&block, QIODevice::WriteOnly); - out.setVersion(QDataStream::Qt_4_2); - out << (quint32)0; + if (!_syncSlave[initRequest.className].contains(initRequest.objectName)) { + qWarning() << "SignalProxy::handleInitRequest() received initRequest for unregistered Object:" + << initRequest.className << initRequest.objectName; + return; + } - if(compressed) { - QByteArray rawItem; - QDataStream itemStream(&rawItem, QIODevice::WriteOnly); + SyncableObject *obj = _syncSlave[initRequest.className][initRequest.objectName]; + peer->dispatch(InitData(initRequest.className, initRequest.objectName, initData(obj))); +} - itemStream.setVersion(QDataStream::Qt_4_2); - itemStream << item; - rawItem = qCompress(rawItem); +void SignalProxy::handle(Peer *peer, const InitData &initData) +{ + Q_UNUSED(peer) - out << rawItem; - } else { - out << item; - } + if (!_syncSlave.contains(initData.className)) { + qWarning() << "SignalProxy::handleInitData() received initData for unregistered Class:" + << initData.className; + return; + } - out.device()->seek(0); - out << (quint32)(block.size() - sizeof(quint32)); + if (!_syncSlave[initData.className].contains(initData.objectName)) { + qWarning() << "SignalProxy::handleInitData() received initData for unregistered Object:" + << initData.className << initData.objectName; + return; + } - dev->write(block); + SyncableObject *obj = _syncSlave[initData.className][initData.objectName]; + setInitData(obj, initData.initData); } -bool SignalProxy::readDataFromDevice(QIODevice *dev, quint32 &blockSize, QVariant &item, bool compressed) { - if(!dev) - return false; - QDataStream in(dev); - in.setVersion(QDataStream::Qt_4_2); +void SignalProxy::handle(Peer *peer, const RpcCall &rpcCall) +{ + QObject *receiver; + int methodId; + SlotHash::const_iterator slot = _attachedSlots.constFind(rpcCall.slotName); + while (slot != _attachedSlots.constEnd() && slot.key() == rpcCall.slotName) { + receiver = (*slot).first; + methodId = (*slot).second; + if (!invokeSlot(receiver, methodId, rpcCall.params, peer)) { + ExtendedMetaObject *eMeta = extendedMetaObject(receiver); + qWarning("SignalProxy::handleSignal(): invokeMethod for \"%s\" failed ", eMeta->methodName(methodId).constData()); + } + ++slot; + } +} - if(blockSize == 0) { - if(dev->bytesAvailable() < (int)sizeof(quint32)) return false; - in >> blockSize; - } - if(blockSize > 1 << 22) { - disconnectDevice(dev, tr("Peer tried to send package larger than max package size!")); - return false; - } +bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms, QVariant &returnValue, Peer *peer) +{ + ExtendedMetaObject *eMeta = extendedMetaObject(receiver); + const QList args = eMeta->argTypes(methodId); + const int numArgs = params.count() < args.count() + ? params.count() + : args.count(); + + if (eMeta->minArgCount(methodId) > params.count()) { + qWarning() << "SignalProxy::invokeSlot(): not enough params to invoke" << eMeta->methodName(methodId); + return false; + } - if(blockSize == 0) { - disconnectDevice(dev, tr("Peer tried to send 0 byte package!")); - return false; - } + void *_a[] = { 0, // return type... + 0, 0, 0, 0, 0, // and 10 args - that's the max size qt can handle with signals and slots + 0, 0, 0, 0, 0 }; + + // check for argument compatibility and build params array + for (int i = 0; i < numArgs; i++) { + if (!params[i].isValid()) { +#if QT_VERSION >= 0x050000 + qWarning() << "SignalProxy::invokeSlot(): received invalid data for argument number" << i << "of method" << QString("%1::%2()").arg(receiver->metaObject()->className()).arg(receiver->metaObject()->method(methodId).methodSignature().constData()); +#else + qWarning() << "SignalProxy::invokeSlot(): received invalid data for argument number" << i << "of method" << QString("%1::%2()").arg(receiver->metaObject()->className()).arg(receiver->metaObject()->method(methodId).signature()); +#endif + qWarning() << " - make sure all your data types are known by the Qt MetaSystem"; + return false; + } + if (args[i] != QMetaType::type(params[i].typeName())) { + qWarning() << "SignalProxy::invokeSlot(): incompatible param types to invoke" << eMeta->methodName(methodId); + return false; + } - if(dev->bytesAvailable() < blockSize) - return false; + _a[i+1] = const_cast(params[i].constData()); + } - blockSize = 0; + if (returnValue.type() != QVariant::Invalid) + _a[0] = const_cast(returnValue.constData()); - if(compressed) { - QByteArray rawItem; - in >> rawItem; + Qt::ConnectionType type = QThread::currentThread() == receiver->thread() + ? Qt::DirectConnection + : Qt::QueuedConnection; - int nbytes = rawItem.size(); - if(nbytes <= 4) { - const char *data = rawItem.constData(); - if(nbytes < 4 || (data[0]!=0 || data[1]!=0 || data[2]!=0 || data[3]!=0)) { - disconnectDevice(dev, tr("Peer sent corrupted compressed data!")); + if (type == Qt::DirectConnection) { + _sourcePeer = peer; + auto result = receiver->qt_metacall(QMetaObject::InvokeMetaMethod, methodId, _a) < 0; + _sourcePeer = nullptr; + return result; + } else { + qWarning() << "Queued Connections are not implemented yet"; + // note to self: qmetaobject.cpp:990 ff return false; - } } +} - rawItem = qUncompress(rawItem); - QDataStream itemStream(&rawItem, QIODevice::ReadOnly); - itemStream.setVersion(QDataStream::Qt_4_2); - itemStream >> item; - } else { - in >> item; - } +bool SignalProxy::invokeSlot(QObject *receiver, int methodId, const QVariantList ¶ms, Peer *peer) +{ + QVariant ret; + return invokeSlot(receiver, methodId, params, ret, peer); +} + - if(!item.isValid()) { - disconnectDevice(dev, tr("Peer sent corrupt data: unable to load QVariant!")); - return false; - } +void SignalProxy::requestInit(SyncableObject *obj) +{ + if (proxyMode() == Server || obj->isInitialized()) + return; - return true; + dispatch(InitRequest(obj->syncMetaObject()->className(), obj->objectName())); } -void SignalProxy::requestInit(SyncableObject *obj) { - if(proxyMode() == Server || obj->isInitialized()) - return; - QVariantList params; - params << obj->syncMetaObject()->className() - << obj->objectName(); - dispatchSignal(InitRequest, params); +QVariantMap SignalProxy::initData(SyncableObject *obj) const +{ + return obj->toVariantMap(); } -QVariantMap SignalProxy::initData(SyncableObject *obj) const { - return obj->toVariantMap(); -} -void SignalProxy::setInitData(SyncableObject *obj, const QVariantMap &properties) { - if(obj->isInitialized()) - return; - obj->fromVariantMap(properties); - obj->setInitialized(); - emit objectInitialized(obj); - invokeSlot(obj, extendedMetaObject(obj)->updatedRemotelyId()); +void SignalProxy::setInitData(SyncableObject *obj, const QVariantMap &properties) +{ + if (obj->isInitialized()) + return; + obj->fromVariantMap(properties); + obj->setInitialized(); + emit objectInitialized(obj); + invokeSlot(obj, extendedMetaObject(obj)->updatedRemotelyId()); } -void SignalProxy::sendHeartBeat() { - QVariantList heartBeatParams; - heartBeatParams << QTime::currentTime(); - QList toClose; - - PeerHash::iterator peer = _peers.begin(); - while(peer != _peers.end()) { - if((*peer)->type() == AbstractPeer::IODevicePeer) { - IODevicePeer *ioPeer = static_cast(*peer); - ioPeer->dispatchSignal(SignalProxy::HeartBeat, heartBeatParams); - if(ioPeer->sentHeartBeats > 0) { - updateLag(ioPeer, ioPeer->sentHeartBeats * _heartBeatTimer.interval()); - } - if(ioPeer->sentHeartBeats >= maxHeartBeatCount()) - toClose.append(ioPeer); - else - ioPeer->sentHeartBeats++; + +void SignalProxy::customEvent(QEvent *event) +{ + switch ((int)event->type()) { + case RemovePeerEvent: { + ::RemovePeerEvent *e = static_cast< ::RemovePeerEvent *>(event); + removePeer(e->peer); + event->accept(); + break; } - ++peer; - } - - foreach(IODevicePeer *ioPeer, toClose) { - qWarning() << "SignalProxy: Disconnecting peer:" << ioPeer->address() - << "(didn't receive a heartbeat for over" << ioPeer->sentHeartBeats * _heartBeatTimer.interval() / 1000 << "seconds)"; - ioPeer->close(); - } -} -void SignalProxy::receiveHeartBeat(AbstractPeer *peer, const QVariantList ¶ms) { - peer->dispatchSignal(SignalProxy::HeartBeatReply, params); + default: + qWarning() << Q_FUNC_INFO << "Received unknown custom event:" << event->type(); + return; + } } -void SignalProxy::receiveHeartBeatReply(AbstractPeer *peer, const QVariantList ¶ms) { - if(peer->type() != AbstractPeer::IODevicePeer) { - qWarning() << "SignalProxy::receiveHeartBeatReply: received heart beat from a non IODevicePeer!"; - return; - } - IODevicePeer *ioPeer = static_cast(peer); - ioPeer->sentHeartBeats = 0; +void SignalProxy::sync_call__(const SyncableObject *obj, SignalProxy::ProxyMode modeType, const char *funcname, va_list ap) +{ + // qDebug() << obj << modeType << "(" << _proxyMode << ")" << funcname; + if (modeType != _proxyMode) + return; + + ExtendedMetaObject *eMeta = extendedMetaObject(obj); - if(params.isEmpty()) { - qWarning() << "SignalProxy: received heart beat reply with less params then sent from:" << ioPeer->address(); - return; - } + QVariantList params; - QTime sendTime = params[0].value(); - updateLag(ioPeer, sendTime.msecsTo(QTime::currentTime()) / 2); -} + const QList &argTypes = eMeta->argTypes(eMeta->methodId(QByteArray(funcname))); -void SignalProxy::customEvent(QEvent *event) { - switch(event->type()) { - case PeerSignal: - { - PeerSignalEvent *e = static_cast(event); - receivePeerSignal(e->sender, e->requestType, e->params); - } - event->accept(); - break; - case RemovePeer: - { - RemovePeerEvent *e = static_cast(event); - removePeer(e->peer); + for (int i = 0; i < argTypes.size(); i++) { + if (argTypes[i] == 0) { + qWarning() << Q_FUNC_INFO << "received invalid data for argument number" << i << "of signal" << QString("%1::%2").arg(eMeta->metaObject()->className()).arg(funcname); + qWarning() << " - make sure all your data types are known by the Qt MetaSystem"; + return; + } + params << QVariant(argTypes[i], va_arg(ap, void *)); } - event->accept(); - default: - return; - } + + if (_restrictMessageTarget) { + for (auto peer : _restrictedTargets) { + if (peer != nullptr) + dispatch(peer, SyncMessage(eMeta->metaObject()->className(), obj->objectName(), QByteArray(funcname), params)); + } + } else + dispatch(SyncMessage(eMeta->metaObject()->className(), obj->objectName(), QByteArray(funcname), params)); } -void SignalProxy::sync_call__(const SyncableObject *obj, SignalProxy::ProxyMode modeType, const char *funcname, va_list ap) { - // qDebug() << obj << modeType << "(" << _proxyMode << ")" << funcname; - if(modeType != _proxyMode) - return; - ExtendedMetaObject *eMeta = extendedMetaObject(obj); +void SignalProxy::disconnectDevice(QIODevice *dev, const QString &reason) +{ + if (!reason.isEmpty()) + qWarning() << qPrintable(reason); + QAbstractSocket *sock = qobject_cast(dev); + if (sock) + qWarning() << qPrintable(tr("Disconnecting")) << qPrintable(sock->peerAddress().toString()); + dev->close(); +} - QVariantList params; - params << eMeta->metaObject()->className() - << obj->objectName() - << QByteArray(funcname); - const QList &argTypes = eMeta->argTypes(eMeta->methodId(QByteArray(funcname))); +void SignalProxy::dumpProxyStats() +{ + QString mode; + if (proxyMode() == Server) + mode = "Server"; + else + mode = "Client"; - for(int i = 0; i < argTypes.size(); i++) { - if(argTypes[i] == 0) { - qWarning() << Q_FUNC_INFO << "received invalid data for argument number" << i << "of signal" << QString("%1::%2").arg(eMeta->metaObject()->className()).arg(funcname); - qWarning() << " - make sure all your data types are known by the Qt MetaSystem"; - return; - } - params << QVariant(argTypes[i], va_arg(ap, void *)); - } + int slaveCount = 0; + foreach(ObjectId oid, _syncSlave.values()) + slaveCount += oid.count(); - dispatchSignal(Sync, params); + qDebug() << this; + qDebug() << " Proxy Mode:" << mode; + qDebug() << " attached Slots:" << _attachedSlots.count(); + qDebug() << " number of synced Slaves:" << slaveCount; + qDebug() << "number of Classes cached:" << _extendedMetaObjects.count(); } +void SignalProxy::updateSecureState() +{ + bool wasSecure = _secure; -void SignalProxy::disconnectDevice(QIODevice *dev, const QString &reason) { - if(!reason.isEmpty()) - qWarning() << qPrintable(reason); - QAbstractSocket *sock = qobject_cast(dev); - if(sock) - qWarning() << qPrintable(tr("Disconnecting")) << qPrintable(sock->peerAddress().toString()); - dev->close(); -} + _secure = !_peers.isEmpty(); + foreach (const Peer *peer, _peers) { + _secure &= peer->isSecure(); + } -void SignalProxy::updateLag(IODevicePeer *peer, int lag) { - peer->lag = lag; - if(proxyMode() == Client) { - emit lagUpdated(lag); - } + if (wasSecure != _secure) + emit secureStateChanged(_secure); +} + +QVariantList SignalProxy::peerData() { + QVariantList result; + for (auto peer : _peers) { + QVariantMap data; + data["id"] = peer->_id; + data["clientVersion"] = peer->_clientVersion; + data["clientVersionDate"] = peer->_buildDate; + data["remoteAddress"] = peer->address(); + data["connectedSince"] = peer->_connectedSince; + data["secure"] = peer->isSecure(); + result << data; + } + return result; } -void SignalProxy::dumpProxyStats() { - QString mode; - if(proxyMode() == Server) - mode = "Server"; - else - mode = "Client"; - - int slaveCount = 0; - foreach(ObjectId oid, _syncSlave.values()) - slaveCount += oid.count(); - - qDebug() << this; - qDebug() << " Proxy Mode:" << mode; - qDebug() << " attached Slots:" << _attachedSlots.count(); - qDebug() << " number of synced Slaves:" << slaveCount; - qDebug() << "number of Classes cached:" << _extendedMetaObjects.count(); +Peer *SignalProxy::peerById(int peerId) { + return _peerMap[peerId]; } -void SignalProxy::updateSecureState() { - bool wasSecure = _secure; +void SignalProxy::restrictTargetPeers(QSet peers, std::function closure) +{ + auto previousRestrictMessageTarget = _restrictMessageTarget; + auto previousRestrictedTargets = _restrictedTargets; + _restrictMessageTarget = true; + _restrictedTargets = peers; - _secure = !_peers.isEmpty(); - PeerHash::const_iterator peerIter; - for(peerIter = _peers.constBegin(); peerIter != _peers.constEnd(); peerIter++) { - _secure &= (*peerIter)->isSecure(); - } + closure(); - if(wasSecure != _secure) - emit secureStateChanged(_secure); + _restrictMessageTarget = previousRestrictMessageTarget; + _restrictedTargets = previousRestrictedTargets; } - // ================================================== // ExtendedMetaObject // ================================================== SignalProxy::ExtendedMetaObject::ExtendedMetaObject(const QMetaObject *meta, bool checkConflicts) - : _meta(meta), + : _meta(meta), _updatedRemotelyId(_meta->indexOfSignal("updatedRemotely()")) { - for(int i = 0; i < _meta->methodCount(); i++) { - if(_meta->method(i).methodType() != QMetaMethod::Slot) - continue; - - if(QByteArray(_meta->method(i).signature()).contains('*')) - continue; // skip methods with ptr params - - QByteArray method = methodName(_meta->method(i)); - if(method.startsWith("init")) - continue; // skip initializers - - if(_methodIds.contains(method)) { - /* funny... moc creates for methods containing default parameters multiple metaMethod with separate methodIds. - we don't care... we just need the full fledged version - */ - const QMetaMethod ¤t = _meta->method(_methodIds[method]); - const QMetaMethod &candidate = _meta->method(i); - if(current.parameterTypes().count() > candidate.parameterTypes().count()) { - int minCount = candidate.parameterTypes().count(); - QList commonParams = current.parameterTypes().mid(0, minCount); - if(commonParams == candidate.parameterTypes()) - continue; // we already got the full featured version - } else { - int minCount = current.parameterTypes().count(); - QList commonParams = candidate.parameterTypes().mid(0, minCount); - if(commonParams == current.parameterTypes()) { - _methodIds[method] = i; // use the new one - continue; + for (int i = 0; i < _meta->methodCount(); i++) { + if (_meta->method(i).methodType() != QMetaMethod::Slot) + continue; + +#if QT_VERSION >= 0x050000 + if (_meta->method(i).methodSignature().contains('*')) +#else + if (QByteArray(_meta->method(i).signature()).contains('*')) +#endif + continue; // skip methods with ptr params + + QByteArray method = methodName(_meta->method(i)); + if (method.startsWith("init")) + continue; // skip initializers + + if (_methodIds.contains(method)) { + /* funny... moc creates for methods containing default parameters multiple metaMethod with separate methodIds. + we don't care... we just need the full fledged version + */ + const QMetaMethod ¤t = _meta->method(_methodIds[method]); + const QMetaMethod &candidate = _meta->method(i); + if (current.parameterTypes().count() > candidate.parameterTypes().count()) { + int minCount = candidate.parameterTypes().count(); + QList commonParams = current.parameterTypes().mid(0, minCount); + if (commonParams == candidate.parameterTypes()) + continue; // we already got the full featured version + } + else { + int minCount = current.parameterTypes().count(); + QList commonParams = candidate.parameterTypes().mid(0, minCount); + if (commonParams == current.parameterTypes()) { + _methodIds[method] = i; // use the new one + continue; + } + } + if (checkConflicts) { + qWarning() << "class" << meta->className() << "contains overloaded methods which is currently not supported!"; +#if QT_VERSION >= 0x050000 + qWarning() << " - " << _meta->method(i).methodSignature() << "conflicts with" << _meta->method(_methodIds[method]).methodSignature(); +#else + qWarning() << " - " << _meta->method(i).signature() << "conflicts with" << _meta->method(_methodIds[method]).signature(); +#endif + } + continue; } - } - if(checkConflicts) { - qWarning() << "class" << meta->className() << "contains overloaded methods which is currently not supported!"; - qWarning() << " - " << _meta->method(i).signature() << "conflicts with" << _meta->method(_methodIds[method]).signature(); - } - continue; + _methodIds[method] = i; } - _methodIds[method] = i; - } } -const SignalProxy::ExtendedMetaObject::MethodDescriptor &SignalProxy::ExtendedMetaObject::methodDescriptor(int methodId) { - if(!_methods.contains(methodId)) { - _methods[methodId] = MethodDescriptor(_meta->method(methodId)); - } - return _methods[methodId]; + +const SignalProxy::ExtendedMetaObject::MethodDescriptor &SignalProxy::ExtendedMetaObject::methodDescriptor(int methodId) +{ + if (!_methods.contains(methodId)) { + _methods[methodId] = MethodDescriptor(_meta->method(methodId)); + } + return _methods[methodId]; } -const QHash &SignalProxy::ExtendedMetaObject::receiveMap() { - if(_receiveMap.isEmpty()) { - QHash receiveMap; - - QMetaMethod requestSlot; - QByteArray returnTypeName; - QByteArray signature; - QByteArray methodName; - QByteArray params; - int paramsPos; - int receiverId; - const int methodCount = _meta->methodCount(); - for(int i = 0; i < methodCount; i++) { - requestSlot = _meta->method(i); - if(requestSlot.methodType() != QMetaMethod::Slot) - continue; - - returnTypeName = requestSlot.typeName(); - if(QMetaType::Void == (QMetaType::Type)returnType(i)) - continue; - - signature = QByteArray(requestSlot.signature()); - if(!signature.startsWith("request")) - continue; - - paramsPos = signature.indexOf('('); - if(paramsPos == -1) - continue; - - methodName = signature.left(paramsPos); - params = signature.mid(paramsPos); - - methodName = methodName.replace("request", "receive"); - params = params.left(params.count() - 1) + ", " + returnTypeName + ")"; - - signature = QMetaObject::normalizedSignature(methodName + params); - receiverId = _meta->indexOfSlot(signature); - - if(receiverId == -1) { - signature = QMetaObject::normalizedSignature(methodName + "(" + returnTypeName + ")"); - receiverId = _meta->indexOfSlot(signature); - } - - if(receiverId != -1) { - receiveMap[i] = receiverId; - } + +const QHash &SignalProxy::ExtendedMetaObject::receiveMap() +{ + if (_receiveMap.isEmpty()) { + QHash receiveMap; + + QMetaMethod requestSlot; + QByteArray returnTypeName; + QByteArray signature; + QByteArray methodName; + QByteArray params; + int paramsPos; + int receiverId; + const int methodCount = _meta->methodCount(); + for (int i = 0; i < methodCount; i++) { + requestSlot = _meta->method(i); + if (requestSlot.methodType() != QMetaMethod::Slot) + continue; + + returnTypeName = requestSlot.typeName(); + if (QMetaType::Void == (QMetaType::Type)returnType(i)) + continue; + +#if QT_VERSION >= 0x050000 + signature = requestSlot.methodSignature(); +#else + signature = QByteArray(requestSlot.signature()); +#endif + if (!signature.startsWith("request")) + continue; + + paramsPos = signature.indexOf('('); + if (paramsPos == -1) + continue; + + methodName = signature.left(paramsPos); + params = signature.mid(paramsPos); + + methodName = methodName.replace("request", "receive"); + params = params.left(params.count() - 1) + ", " + returnTypeName + ")"; + + signature = QMetaObject::normalizedSignature(methodName + params); + receiverId = _meta->indexOfSlot(signature); + + if (receiverId == -1) { + signature = QMetaObject::normalizedSignature(methodName + "(" + returnTypeName + ")"); + receiverId = _meta->indexOfSlot(signature); + } + + if (receiverId != -1) { + receiveMap[i] = receiverId; + } + } + _receiveMap = receiveMap; } - _receiveMap = receiveMap; - } - return _receiveMap; + return _receiveMap; } -QByteArray SignalProxy::ExtendedMetaObject::methodName(const QMetaMethod &method) { - QByteArray sig(method.signature()); - return sig.left(sig.indexOf("(")); + +QByteArray SignalProxy::ExtendedMetaObject::methodName(const QMetaMethod &method) +{ +#if QT_VERSION >= 0x050000 + QByteArray sig(method.methodSignature()); +#else + QByteArray sig(method.signature()); +#endif + return sig.left(sig.indexOf("(")); } -QString SignalProxy::ExtendedMetaObject::methodBaseName(const QMetaMethod &method) { - QString methodname = QString(method.signature()).section("(", 0, 0); - - // determine where we have to chop: - int upperCharPos; - if(method.methodType() == QMetaMethod::Slot) { - // we take evertyhing from the first uppercase char if it's slot - upperCharPos = methodname.indexOf(QRegExp("[A-Z]")); - if(upperCharPos == -1) - return QString(); - methodname = methodname.mid(upperCharPos); - } else { - // and if it's a signal we discard everything from the last uppercase char - upperCharPos = methodname.lastIndexOf(QRegExp("[A-Z]")); - if(upperCharPos == -1) - return QString(); - methodname = methodname.left(upperCharPos); - } - - methodname[0] = methodname[0].toUpper(); - - return methodname; + +QString SignalProxy::ExtendedMetaObject::methodBaseName(const QMetaMethod &method) +{ +#if QT_VERSION >= 0x050000 + QString methodname = QString(method.methodSignature()).section("(", 0, 0); +#else + QString methodname = QString(method.signature()).section("(", 0, 0); +#endif + + // determine where we have to chop: + int upperCharPos; + if (method.methodType() == QMetaMethod::Slot) { + // we take evertyhing from the first uppercase char if it's slot + upperCharPos = methodname.indexOf(QRegExp("[A-Z]")); + if (upperCharPos == -1) + return QString(); + methodname = methodname.mid(upperCharPos); + } + else { + // and if it's a signal we discard everything from the last uppercase char + upperCharPos = methodname.lastIndexOf(QRegExp("[A-Z]")); + if (upperCharPos == -1) + return QString(); + methodname = methodname.left(upperCharPos); + } + + methodname[0] = methodname[0].toUpper(); + + return methodname; } + SignalProxy::ExtendedMetaObject::MethodDescriptor::MethodDescriptor(const QMetaMethod &method) - : _methodName(SignalProxy::ExtendedMetaObject::methodName(method)), + : _methodName(SignalProxy::ExtendedMetaObject::methodName(method)), _returnType(QMetaType::type(method.typeName())) { - // determine argTypes - QList paramTypes = method.parameterTypes(); - QList argTypes; - for(int i = 0; i < paramTypes.count(); i++) { - argTypes.append(QMetaType::type(paramTypes[i])); - } - _argTypes = argTypes; - - // determine minArgCount - QString signature(method.signature()); - _minArgCount = method.parameterTypes().count() - signature.count("="); - - _receiverMode = (_methodName.startsWith("request")) - ? SignalProxy::Server - : SignalProxy::Client; -} + // determine argTypes + QList paramTypes = method.parameterTypes(); + QList argTypes; + for (int i = 0; i < paramTypes.count(); i++) { + argTypes.append(QMetaType::type(paramTypes[i])); + } + _argTypes = argTypes; + + // determine minArgCount +#if QT_VERSION >= 0x050000 + QString signature(method.methodSignature()); +#else + QString signature(method.signature()); +#endif + _minArgCount = method.parameterTypes().count() - signature.count("="); + _receiverMode = (_methodName.startsWith("request")) + ? SignalProxy::Server + : SignalProxy::Client; +}