1 /***************************************************************************
2 * Copyright (C) 2005-08 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 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
20 #include "networkconnection.h"
22 #include <QMetaObject>
23 #include <QMetaMethod>
28 #include "coresession.h"
30 #include "ircchannel.h"
35 #include "ircserverhandler.h"
36 #include "userinputhandler.h"
37 #include "ctcphandler.h"
39 NetworkConnection::NetworkConnection(Network *network, CoreSession *session) : QObject(network),
40 _connectionState(Network::Disconnected),
42 _coreSession(session),
43 _ircServerHandler(new IrcServerHandler(this)),
44 _userInputHandler(new UserInputHandler(this)),
45 _ctcpHandler(new CtcpHandler(this)),
46 _autoReconnectCount(0)
48 _autoReconnectTimer.setSingleShot(true);
49 _previousConnectionAttemptFailed = false;
50 _lastUsedServerlistIndex = 0;
51 // TODO make configurable
52 _whoTimer.setInterval(60 * 1000);
53 _whoTimer.setSingleShot(false);
55 QHash<QString, QString> channels = coreSession()->persistentChannels(networkId());
56 foreach(QString chan, channels.keys()) {
57 _channelKeys[chan.toLower()] = channels[chan];
60 connect(&_autoReconnectTimer, SIGNAL(timeout()), this, SLOT(doAutoReconnect()));
61 connect(&_whoTimer, SIGNAL(timeout()), this, SLOT(sendWho()));
63 connect(network, SIGNAL(currentServerSet(const QString &)), this, SLOT(networkInitialized(const QString &)));
64 connect(network, SIGNAL(useAutoReconnectSet(bool)), this, SLOT(autoReconnectSettingsChanged()));
65 connect(network, SIGNAL(autoReconnectIntervalSet(quint32)), this, SLOT(autoReconnectSettingsChanged()));
66 connect(network, SIGNAL(autoReconnectRetriesSet(quint16)), this, SLOT(autoReconnectSettingsChanged()));
69 connect(&socket, SIGNAL(encrypted()), this, SLOT(socketEncrypted()));
70 connect(&socket, SIGNAL(sslErrors(const QList<QSslError> &)), this, SLOT(sslErrors(const QList<QSslError> &)));
72 connect(&socket, SIGNAL(connected()), this, SLOT(socketConnected()));
74 connect(&socket, SIGNAL(disconnected()), this, SLOT(socketDisconnected()));
75 connect(&socket, SIGNAL(error(QAbstractSocket::SocketError)), this, SLOT(socketError(QAbstractSocket::SocketError)));
76 connect(&socket, SIGNAL(stateChanged(QAbstractSocket::SocketState)), this, SLOT(socketStateChanged(QAbstractSocket::SocketState)));
77 connect(&socket, SIGNAL(readyRead()), this, SLOT(socketHasData()));
79 connect(_ircServerHandler, SIGNAL(nickChanged(const QString &, const QString &)),
80 this, SLOT(nickChanged(const QString &, const QString &)));
82 network->proxy()->attachSignal(this, SIGNAL(sslErrors(const QVariant &)));
85 NetworkConnection::~NetworkConnection() {
86 if(connectionState() != Network::Disconnected && connectionState() != Network::Reconnecting)
87 disconnectFromIrc(false); // clean up, but this does not count as requested disconnect!
88 delete _ircServerHandler;
89 delete _userInputHandler;
93 bool NetworkConnection::isConnected() const {
94 // return socket.state() == QAbstractSocket::ConnectedState;
95 return connectionState() == Network::Initialized;
98 Network::ConnectionState NetworkConnection::connectionState() const {
99 return _connectionState;
102 void NetworkConnection::setConnectionState(Network::ConnectionState state) {
103 _connectionState = state;
104 network()->setConnectionState(state);
105 emit connectionStateChanged(state);
108 NetworkId NetworkConnection::networkId() const {
109 return network()->networkId();
112 QString NetworkConnection::networkName() const {
113 return network()->networkName();
116 Identity *NetworkConnection::identity() const {
117 return coreSession()->identity(network()->identity());
120 Network *NetworkConnection::network() const {
124 CoreSession *NetworkConnection::coreSession() const {
128 IrcServerHandler *NetworkConnection::ircServerHandler() const {
129 return _ircServerHandler;
132 UserInputHandler *NetworkConnection::userInputHandler() const {
133 return _userInputHandler;
136 CtcpHandler *NetworkConnection::ctcpHandler() const {
140 QString NetworkConnection::serverDecode(const QByteArray &string) const {
141 return network()->decodeServerString(string);
144 QString NetworkConnection::channelDecode(const QString &bufferName, const QByteArray &string) const {
145 if(!bufferName.isEmpty()) {
146 IrcChannel *channel = network()->ircChannel(bufferName);
147 if(channel) return channel->decodeString(string);
149 return network()->decodeString(string);
152 QString NetworkConnection::userDecode(const QString &userNick, const QByteArray &string) const {
153 IrcUser *user = network()->ircUser(userNick);
154 if(user) return user->decodeString(string);
155 return network()->decodeString(string);
158 QByteArray NetworkConnection::serverEncode(const QString &string) const {
159 return network()->encodeServerString(string);
162 QByteArray NetworkConnection::channelEncode(const QString &bufferName, const QString &string) const {
163 if(!bufferName.isEmpty()) {
164 IrcChannel *channel = network()->ircChannel(bufferName);
165 if(channel) return channel->encodeString(string);
167 return network()->encodeString(string);
170 QByteArray NetworkConnection::userEncode(const QString &userNick, const QString &string) const {
171 IrcUser *user = network()->ircUser(userNick);
172 if(user) return user->encodeString(string);
173 return network()->encodeString(string);
176 void NetworkConnection::autoReconnectSettingsChanged() {
177 if(!network()->useAutoReconnect()) {
178 _autoReconnectTimer.stop();
179 _autoReconnectCount = 0;
181 _autoReconnectTimer.setInterval(network()->autoReconnectInterval() * 1000);
182 if(_autoReconnectCount != 0) {
183 if(network()->unlimitedReconnectRetries()) _autoReconnectCount = -1;
184 else _autoReconnectCount = network()->autoReconnectRetries();
189 void NetworkConnection::connectToIrc(bool reconnecting) {
190 if(!reconnecting && network()->useAutoReconnect() && _autoReconnectCount == 0) {
191 _autoReconnectTimer.setInterval(network()->autoReconnectInterval() * 1000);
192 if(network()->unlimitedReconnectRetries()) _autoReconnectCount = -1;
193 else _autoReconnectCount = network()->autoReconnectRetries();
195 QVariantList serverList = network()->serverList();
196 Identity *identity = coreSession()->identity(network()->identity());
197 if(!serverList.count()) {
198 qWarning() << "Server list empty, ignoring connect request!";
202 qWarning() << "Invalid identity configures, ignoring connect request!";
205 // use a random server?
206 if(network()->useRandomServer()) {
207 _lastUsedServerlistIndex = qrand() % serverList.size();
208 } else if(_previousConnectionAttemptFailed) {
209 // cycle to next server if previous connection attempt failed
210 displayMsg(Message::Server, BufferInfo::StatusBuffer, "", tr("Connection failed. Cycling to next Server"));
211 if(++_lastUsedServerlistIndex == serverList.size()) {
212 _lastUsedServerlistIndex = 0;
215 _previousConnectionAttemptFailed = false;
217 QString host = serverList[_lastUsedServerlistIndex].toMap()["Host"].toString();
218 quint16 port = serverList[_lastUsedServerlistIndex].toMap()["Port"].toUInt();
219 displayStatusMsg(tr("Connecting to %1:%2...").arg(host).arg(port));
220 displayMsg(Message::Server, BufferInfo::StatusBuffer, "", tr("Connecting to %1:%2...").arg(host).arg(port));
221 socket.connectToHost(host, port);
224 void NetworkConnection::networkInitialized(const QString ¤tServer) {
225 if(currentServer.isEmpty()) return;
227 if(network()->useAutoReconnect() && !network()->unlimitedReconnectRetries()) {
228 _autoReconnectCount = network()->autoReconnectRetries(); // reset counter
233 // now we are initialized
234 setConnectionState(Network::Initialized);
235 network()->setConnected(true);
236 emit connected(networkId());
241 void NetworkConnection::sendPerform() {
242 BufferInfo statusBuf = Core::bufferInfo(coreSession()->user(), network()->networkId(), BufferInfo::StatusBuffer);
244 if(network()->useAutoIdentify() && !network()->autoIdentifyService().isEmpty() && !network()->autoIdentifyPassword().isEmpty()) {
245 userInputHandler()->handleMsg(statusBuf, QString("%1 IDENTIFY %2").arg(network()->autoIdentifyService(), network()->autoIdentifyPassword()));
248 foreach(QString line, network()->perform()) {
249 if(!line.isEmpty()) userInput(statusBuf, line);
252 // rejoin channels we've been in
253 QStringList channels, keys;
254 foreach(QString chan, persistentChannels()) {
255 QString key = channelKey(chan);
257 channels.prepend(chan); keys.prepend(key);
259 channels.append(chan);
262 QString joinString = QString("%1 %2").arg(channels.join(",")).arg(keys.join(",")).trimmed();
263 if(!joinString.isEmpty()) userInputHandler()->handleJoin(statusBuf, joinString);
266 void NetworkConnection::disconnectFromIrc(bool requested) {
267 _autoReconnectTimer.stop();
268 _autoReconnectCount = 0;
269 displayMsg(Message::Server, BufferInfo::StatusBuffer, "", tr("Disconnecting."));
270 if(socket.state() < QAbstractSocket::ConnectedState) {
271 setConnectionState(Network::Disconnected);
272 socketDisconnected();
273 } else socket.disconnectFromHost();
276 emit quitRequested(networkId());
280 void NetworkConnection::socketHasData() {
281 while(socket.canReadLine()) {
282 QByteArray s = socket.readLine().trimmed();
284 if(Global::SPUTDEV && s == lastMsgReceived) {
285 qWarning() << "NetworkConnection::socketHasData(): Message repeated! -> loop?";
288 ircServerHandler()->handleServerMsg(s);
292 void NetworkConnection::socketError(QAbstractSocket::SocketError) {
293 _previousConnectionAttemptFailed = true;
294 qDebug() << qPrintable(tr("Could not connect to %1 (%2)").arg(network()->networkName(), socket.errorString()));
295 emit connectionError(socket.errorString());
296 emit displayMsg(Message::Error, BufferInfo::StatusBuffer, "", tr("Connection failure: %1").arg(socket.errorString()));
297 network()->emitConnectionError(socket.errorString());
298 if(socket.state() < QAbstractSocket::ConnectedState) {
299 setConnectionState(Network::Disconnected);
300 socketDisconnected();
302 // mark last connection attempt as failed
304 //qDebug() << "exiting...";
308 #ifndef QT_NO_OPENSSL
310 void NetworkConnection::sslErrors(const QList<QSslError> &errors) {
311 socket.ignoreSslErrors();
312 /* TODO errorhandling
314 QVariantList errnums;
315 foreach(QSslError err, errors) errnums << err.error();
316 errmsg["SslErrors"] = errnums;
317 errmsg["SslCert"] = socket.peerCertificate().toPem();
318 errmsg["PeerAddress"] = socket.peerAddress().toString();
319 errmsg["PeerPort"] = socket.peerPort();
320 errmsg["PeerName"] = socket.peerName();
321 emit sslErrors(errmsg);
326 void NetworkConnection::socketEncrypted() {
327 //qDebug() << "encrypted!";
331 #endif // QT_NO_OPENSSL
333 void NetworkConnection::socketConnected() {
338 if(!network()->serverList()[_lastUsedServerlistIndex].toMap()["UseSSL"].toBool()) {
342 //qDebug() << "starting handshake";
343 socket.startClientEncryption();
347 void NetworkConnection::socketInitialized() {
348 //emit connected(networkId()); initialize first!
349 Identity *identity = coreSession()->identity(network()->identity());
351 qWarning() << "Identity invalid!";
355 QString passwd = network()->serverList()[_lastUsedServerlistIndex].toMap()["Password"].toString();
356 if(!passwd.isEmpty()) {
357 putRawLine(serverEncode(QString("PASS %1").arg(passwd)));
359 putRawLine(serverEncode(QString("NICK :%1").arg(identity->nicks()[0]))); // FIXME: try more nicks if error occurs
360 putRawLine(serverEncode(QString("USER %1 8 * :%2").arg(identity->ident(), identity->realName())));
363 void NetworkConnection::socketStateChanged(QAbstractSocket::SocketState socketState) {
364 Network::ConnectionState state;
365 switch(socketState) {
366 case QAbstractSocket::UnconnectedState:
367 state = Network::Disconnected;
369 case QAbstractSocket::HostLookupState:
370 case QAbstractSocket::ConnectingState:
371 state = Network::Connecting;
373 case QAbstractSocket::ConnectedState:
374 state = Network::Initializing;
376 case QAbstractSocket::ClosingState:
377 state = Network::Disconnecting;
380 state = Network::Disconnected;
382 setConnectionState(state);
385 void NetworkConnection::socketDisconnected() {
387 network()->setConnected(false);
388 emit disconnected(networkId());
389 if(_autoReconnectCount != 0) {
390 setConnectionState(Network::Reconnecting);
391 if(_autoReconnectCount == network()->autoReconnectRetries()) doAutoReconnect(); // first try is immediate
392 else _autoReconnectTimer.start();
396 void NetworkConnection::doAutoReconnect() {
397 if(connectionState() != Network::Disconnected && connectionState() != Network::Reconnecting) {
398 qWarning() << "NetworkConnection::doAutoReconnect(): Cannot reconnect while not being disconnected!";
401 if(_autoReconnectCount > 0) _autoReconnectCount--;
405 // FIXME switch to BufferId
406 void NetworkConnection::userInput(BufferInfo buf, QString msg) {
407 userInputHandler()->handleUserInput(buf, msg);
410 void NetworkConnection::putRawLine(QByteArray s) {
415 void NetworkConnection::putCmd(const QString &cmd, const QVariantList ¶ms, const QByteArray &prefix) {
417 if(!prefix.isEmpty())
418 msg += ":" + prefix + " ";
419 msg += cmd.toUpper().toAscii();
421 for(int i = 0; i < params.size() - 1; i++) {
422 msg += " " + params[i].toByteArray();
424 if(!params.isEmpty())
425 msg += " :" + params.last().toByteArray();
430 void NetworkConnection::sendWho() {
431 foreach(QString chan, network()->channels()) {
432 putRawLine("WHO " + serverEncode(chan));
436 void NetworkConnection::setChannelJoined(const QString &channel) {
437 emit channelJoined(networkId(), channel, _channelKeys[channel.toLower()]);
440 void NetworkConnection::setChannelParted(const QString &channel) {
441 removeChannelKey(channel);
442 emit channelParted(networkId(), channel);
445 void NetworkConnection::addChannelKey(const QString &channel, const QString &key) {
447 removeChannelKey(channel);
449 _channelKeys[channel.toLower()] = key;
453 void NetworkConnection::removeChannelKey(const QString &channel) {
454 _channelKeys.remove(channel.toLower());
457 void NetworkConnection::nickChanged(const QString &newNick, const QString &oldNick) {
458 emit nickChanged(networkId(), newNick, oldNick);
461 /* Exception classes for message handling */
462 NetworkConnection::ParseError::ParseError(QString cmd, QString prefix, QStringList params) {
464 _msg = QString("Command Parse Error: ") + cmd + params.join(" ");
467 NetworkConnection::UnknownCmdError::UnknownCmdError(QString cmd, QString prefix, QStringList params) {
469 _msg = QString("Unknown Command: ") + cmd + params.join(" ");