+++ /dev/null
-/***************************************************************************
- * Copyright (C) 2005-2013 by the Quassel Project *
- * devel@quassel-irc.org *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) version 3. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * 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., *
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
- ***************************************************************************/
-
-#include "legacyconnection.h"
-
-using namespace Protocol;
-
-LegacyConnection::LegacyConnection(QTcpSocket *socket, QObject *parent)
- : RemoteConnection(socket, parent),
- _blockSize(0),
- _useCompression(false)
-{
- _stream.setDevice(socket);
- _stream.setVersion(QDataStream::Qt_4_2);
-
- connect(socket, SIGNAL(readyRead()), SLOT(socketDataAvailable()));
-}
-
-
-void LegacyConnection::setSignalProxy(SignalProxy *proxy)
-{
- RemoteConnection::setSignalProxy(proxy);
-
- if (proxy) {
- // enable compression now if requested - the initial handshake is uncompressed in the legacy protocol!
- _useCompression = socket()->property("UseCompression").toBool();
- }
-
-}
-
-
-void LegacyConnection::socketDataAvailable()
-{
- QVariant item;
- while (readSocketData(item)) {
- // if no sigproxy is set, we're in handshake mode and let the data be handled elsewhere
- if (!signalProxy())
- emit dataReceived(item);
- else
- handlePackedFunc(item);
- }
-}
-
-
-bool LegacyConnection::readSocketData(QVariant &item)
-{
- if (_blockSize == 0) {
- if (socket()->bytesAvailable() < 4)
- return false;
- _stream >> _blockSize;
- }
-
- if (_blockSize > 1 << 22) {
- close("Peer tried to send package larger than max package size!");
- return false;
- }
-
- if (_blockSize == 0) {
- close("Peer tried to send 0 byte package!");
- return false;
- }
-
- if (socket()->bytesAvailable() < _blockSize) {
- emit transferProgress(socket()->bytesAvailable(), _blockSize);
- return false;
- }
-
- emit transferProgress(_blockSize, _blockSize);
-
- _blockSize = 0;
-
- if (_useCompression) {
- QByteArray rawItem;
- _stream >> rawItem;
-
- 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)) {
- close("Peer sent corrupted compressed data!");
- return false;
- }
- }
-
- rawItem = qUncompress(rawItem);
-
- QDataStream itemStream(&rawItem, QIODevice::ReadOnly);
- itemStream.setVersion(QDataStream::Qt_4_2);
- itemStream >> item;
- }
- else {
- _stream >> item;
- }
-
- if (!item.isValid()) {
- close("Peer sent corrupt data: unable to load QVariant!");
- return false;
- }
-
- return true;
-}
-
-
-void LegacyConnection::writeSocketData(const QVariant &item)
-{
- if (!socket()->isOpen()) {
- qWarning() << Q_FUNC_INFO << "Can't write to a closed socket!";
- return;
- }
-
- QByteArray block;
- QDataStream out(&block, QIODevice::WriteOnly);
- out.setVersion(QDataStream::Qt_4_2);
-
- if (_useCompression) {
- QByteArray rawItem;
- QDataStream itemStream(&rawItem, QIODevice::WriteOnly);
- itemStream.setVersion(QDataStream::Qt_4_2);
- itemStream << item;
-
- rawItem = qCompress(rawItem);
-
- out << rawItem;
- }
- else {
- out << item;
- }
-
- _stream << block; // also writes the length as part of the serialization format
-}
-
-
-void LegacyConnection::handlePackedFunc(const QVariant &packedFunc)
-{
- QVariantList params(packedFunc.toList());
-
- if (params.isEmpty()) {
- qWarning() << Q_FUNC_INFO << "Received incompatible data:" << packedFunc;
- return;
- }
-
- RequestType requestType = (RequestType)params.takeFirst().value<int>();
- switch (requestType) {
- case Sync: {
- if (params.count() < 3) {
- qWarning() << Q_FUNC_INFO << "Received invalid sync call:" << params;
- return;
- }
- QByteArray className = params.takeFirst().toByteArray();
- QString objectName = params.takeFirst().toString();
- QByteArray slotName = params.takeFirst().toByteArray();
- handle(Protocol::SyncMessage(className, objectName, slotName, params));
- break;
- }
- case RpcCall: {
- if (params.empty()) {
- qWarning() << Q_FUNC_INFO << "Received empty RPC call!";
- return;
- }
- QByteArray slotName = params.takeFirst().toByteArray();
- handle(Protocol::RpcCall(slotName, params));
- break;
- }
- case InitRequest: {
- if (params.count() != 2) {
- qWarning() << Q_FUNC_INFO << "Received invalid InitRequest:" << params;
- return;
- }
- QByteArray className = params[0].toByteArray();
- QString objectName = params[1].toString();
- handle(Protocol::InitRequest(className, objectName));
- break;
- }
- case InitData: {
- if (params.count() != 3) {
- qWarning() << Q_FUNC_INFO << "Received invalid InitData:" << params;
- return;
- }
- QByteArray className = params[0].toByteArray();
- QString objectName = params[1].toString();
- QVariantMap initData = params[2].toMap();
- handle(Protocol::InitData(className, objectName, initData));
- break;
- }
- case HeartBeat: {
- if (params.count() != 1) {
- qWarning() << Q_FUNC_INFO << "Received invalid HeartBeat:" << params;
- return;
- }
- // The legacy protocol would only send a QTime, no QDateTime
- // so we assume it's sent today, which works in exactly the same cases as it did in the old implementation
- QDateTime dateTime = QDateTime::currentDateTimeUtc();
- dateTime.setTime(params[0].toTime());
- handle(Protocol::HeartBeat(dateTime));
- break;
- }
- case HeartBeatReply: {
- if (params.count() != 1) {
- qWarning() << Q_FUNC_INFO << "Received invalid HeartBeat:" << params;
- return;
- }
- // The legacy protocol would only send a QTime, no QDateTime
- // so we assume it's sent today, which works in exactly the same cases as it did in the old implementation
- QDateTime dateTime = QDateTime::currentDateTimeUtc();
- dateTime.setTime(params[0].toTime());
- handle(Protocol::HeartBeatReply(dateTime));
- break;
- }
-
- }
-}
-
-
-void LegacyConnection::dispatch(const Protocol::SyncMessage &msg)
-{
- dispatchPackedFunc(QVariantList() << (qint16)Sync << msg.className() << msg.objectName() << msg.slotName() << msg.params());
-}
-
-
-void LegacyConnection::dispatch(const Protocol::RpcCall &msg)
-{
- dispatchPackedFunc(QVariantList() << (qint16)RpcCall << msg.slotName() << msg.params());
-}
-
-
-void LegacyConnection::dispatch(const Protocol::InitRequest &msg)
-{
- dispatchPackedFunc(QVariantList() << (qint16)InitRequest << msg.className() << msg.objectName());
-}
-
-
-void LegacyConnection::dispatch(const Protocol::InitData &msg)
-{
- dispatchPackedFunc(QVariantList() << (qint16)InitData << msg.className() << msg.objectName() << msg.initData());
-}
-
-
-void LegacyConnection::dispatch(const Protocol::HeartBeat &msg)
-{
- dispatchPackedFunc(QVariantList() << (qint16)HeartBeat << msg.timestamp().time());
-}
-
-
-void LegacyConnection::dispatch(const Protocol::HeartBeatReply &msg)
-{
- dispatchPackedFunc(QVariantList() << (qint16)HeartBeatReply << msg.timestamp().time());
-}
-
-
-void LegacyConnection::dispatchPackedFunc(const QVariantList &packedFunc)
-{
- writeSocketData(QVariant(packedFunc));
-}
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