1 /***************************************************************************
2 * Copyright (C) 2005-2015 by the Quassel Project *
3 * devel@quassel-irc.org *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) version 3. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
19 ***************************************************************************/
23 #include <QHostAddress>
27 # include <QSslSocket>
29 # include <QTcpSocket>
32 #include "remotepeer.h"
34 using namespace Protocol;
36 const quint32 maxMessageSize = 64 * 1024 * 1024; // This is uncompressed size. 64 MB should be enough for any sort of initData or backlog chunk
38 RemotePeer::RemotePeer(::AuthHandler *authHandler, QTcpSocket *socket, Compressor::CompressionLevel level, QObject *parent)
39 : Peer(authHandler, parent),
41 _compressor(new Compressor(socket, level, this)),
43 _heartBeatTimer(new QTimer(this)),
48 socket->setParent(this);
49 connect(socket, SIGNAL(stateChanged(QAbstractSocket::SocketState)), SLOT(onSocketStateChanged(QAbstractSocket::SocketState)));
50 connect(socket, SIGNAL(error(QAbstractSocket::SocketError)), SLOT(onSocketError(QAbstractSocket::SocketError)));
51 connect(socket, SIGNAL(disconnected()), SIGNAL(disconnected()));
54 QSslSocket *sslSocket = qobject_cast<QSslSocket *>(socket);
56 connect(sslSocket, SIGNAL(encrypted()), SIGNAL(secureStateChanged()));
59 connect(_compressor, SIGNAL(readyRead()), SLOT(onReadyRead()));
60 connect(_compressor, SIGNAL(error(Compressor::Error)), SLOT(onCompressionError(Compressor::Error)));
62 connect(_heartBeatTimer, SIGNAL(timeout()), SLOT(sendHeartBeat()));
66 void RemotePeer::onSocketStateChanged(QAbstractSocket::SocketState state)
68 if (state == QAbstractSocket::ClosingState) {
69 emit statusMessage(tr("Disconnecting..."));
74 void RemotePeer::onSocketError(QAbstractSocket::SocketError error)
76 emit socketError(error, socket()->errorString());
80 void RemotePeer::onCompressionError(Compressor::Error error)
82 close(QString("Compression error %1").arg(error));
86 QString RemotePeer::description() const
89 return socket()->peerAddress().toString();
95 ::SignalProxy *RemotePeer::signalProxy() const
101 void RemotePeer::setSignalProxy(::SignalProxy *proxy)
103 if (proxy == _signalProxy)
107 _heartBeatTimer->stop();
108 disconnect(signalProxy(), 0, this, 0);
115 qWarning() << Q_FUNC_INFO << "Setting another SignalProxy not supported, ignoring!";
118 _signalProxy = proxy;
119 connect(proxy, SIGNAL(heartBeatIntervalChanged(int)), SLOT(changeHeartBeatInterval(int)));
120 _heartBeatTimer->setInterval(proxy->heartBeatInterval() * 1000);
121 _heartBeatTimer->start();
126 void RemotePeer::changeHeartBeatInterval(int secs)
129 _heartBeatTimer->stop();
131 _heartBeatTimer->setInterval(secs * 1000);
132 _heartBeatTimer->start();
137 int RemotePeer::lag() const
143 QTcpSocket *RemotePeer::socket() const
149 bool RemotePeer::isSecure() const
155 QSslSocket *sslSocket = qobject_cast<QSslSocket *>(socket());
156 if (sslSocket && sslSocket->isEncrypted())
164 bool RemotePeer::isLocal() const
167 if (socket()->peerAddress() == QHostAddress::LocalHost || socket()->peerAddress() == QHostAddress::LocalHostIPv6)
174 bool RemotePeer::isOpen() const
176 return socket() && socket()->state() == QTcpSocket::ConnectedState;
180 void RemotePeer::close(const QString &reason)
182 if (!reason.isEmpty()) {
183 qWarning() << "Disconnecting:" << reason;
186 if (socket() && socket()->state() != QTcpSocket::UnconnectedState) {
187 socket()->disconnectFromHost();
192 void RemotePeer::onReadyRead()
195 while (readMessage(msg))
200 bool RemotePeer::readMessage(QByteArray &msg)
203 if (_compressor->bytesAvailable() < 4)
205 _compressor->read((char*)&_msgSize, 4);
206 _msgSize = qFromBigEndian<quint32>(_msgSize);
208 if (_msgSize > maxMessageSize) {
209 close("Peer tried to send package larger than max package size!");
214 close("Peer tried to send an empty message!");
219 if (_compressor->bytesAvailable() < _msgSize) {
220 emit transferProgress(socket()->bytesAvailable(), _msgSize);
224 emit transferProgress(_msgSize, _msgSize);
226 msg.resize(_msgSize);
227 qint64 bytesRead = _compressor->read(msg.data(), _msgSize);
228 if (bytesRead != _msgSize) {
229 close("Premature end of data stream!");
238 void RemotePeer::writeMessage(const QByteArray &msg)
240 quint32 size = qToBigEndian<quint32>(msg.size());
241 _compressor->write((const char*)&size, 4, Compressor::NoFlush);
242 _compressor->write(msg.constData(), msg.size());
246 void RemotePeer::handle(const HeartBeat &heartBeat)
248 dispatch(HeartBeatReply(heartBeat.timestamp));
252 void RemotePeer::handle(const HeartBeatReply &heartBeatReply)
255 emit lagUpdated(heartBeatReply.timestamp.msecsTo(QDateTime::currentDateTime().toUTC()) / 2);
259 void RemotePeer::sendHeartBeat()
261 if (signalProxy()->maxHeartBeatCount() > 0 && _heartBeatCount >= signalProxy()->maxHeartBeatCount()) {
262 qWarning() << "Disconnecting peer:" << description()
263 << "(didn't receive a heartbeat for over" << _heartBeatCount *_heartBeatTimer->interval() / 1000 << "seconds)";
265 _heartBeatTimer->stop();
269 if (_heartBeatCount > 0) {
270 _lag = _heartBeatCount * _heartBeatTimer->interval();
271 emit lagUpdated(_lag);
274 dispatch(HeartBeat(QDateTime::currentDateTime().toUTC()));