1 /***************************************************************************
2 * Copyright (C) 2005-2018 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 "corenetwork.h"
26 #include "coreidentity.h"
27 #include "corenetworkconfig.h"
28 #include "coresession.h"
29 #include "coreuserinputhandler.h"
30 #include "networkevent.h"
35 INIT_SYNCABLE_OBJECT(CoreNetwork)
36 CoreNetwork::CoreNetwork(const NetworkId &networkid, CoreSession *session)
37 : Network(networkid, session),
38 _coreSession(session),
39 _userInputHandler(new CoreUserInputHandler(this)),
40 _autoReconnectCount(0),
41 _quitRequested(false),
42 _disconnectExpected(false),
44 _previousConnectionAttemptFailed(false),
45 _lastUsedServerIndex(0),
50 _requestedUserModes('-')
52 _autoReconnectTimer.setSingleShot(true);
53 connect(&_socketCloseTimer, SIGNAL(timeout()), this, SLOT(socketCloseTimeout()));
55 setPingInterval(networkConfig()->pingInterval());
56 connect(&_pingTimer, SIGNAL(timeout()), this, SLOT(sendPing()));
58 setAutoWhoDelay(networkConfig()->autoWhoDelay());
59 setAutoWhoInterval(networkConfig()->autoWhoInterval());
61 QHash<QString, QString> channels = coreSession()->persistentChannels(networkId());
62 foreach(QString chan, channels.keys()) {
63 _channelKeys[chan.toLower()] = channels[chan];
66 QHash<QString, QByteArray> bufferCiphers = coreSession()->bufferCiphers(networkId());
67 foreach(QString buffer, bufferCiphers.keys()) {
68 storeChannelCipherKey(buffer.toLower(), bufferCiphers[buffer]);
71 connect(networkConfig(), SIGNAL(pingTimeoutEnabledSet(bool)), SLOT(enablePingTimeout(bool)));
72 connect(networkConfig(), SIGNAL(pingIntervalSet(int)), SLOT(setPingInterval(int)));
73 connect(networkConfig(), SIGNAL(autoWhoEnabledSet(bool)), SLOT(setAutoWhoEnabled(bool)));
74 connect(networkConfig(), SIGNAL(autoWhoIntervalSet(int)), SLOT(setAutoWhoInterval(int)));
75 connect(networkConfig(), SIGNAL(autoWhoDelaySet(int)), SLOT(setAutoWhoDelay(int)));
77 connect(&_autoReconnectTimer, SIGNAL(timeout()), this, SLOT(doAutoReconnect()));
78 connect(&_autoWhoTimer, SIGNAL(timeout()), this, SLOT(sendAutoWho()));
79 connect(&_autoWhoCycleTimer, SIGNAL(timeout()), this, SLOT(startAutoWhoCycle()));
80 connect(&_tokenBucketTimer, SIGNAL(timeout()), this, SLOT(checkTokenBucket()));
82 connect(&socket, SIGNAL(connected()), this, SLOT(socketInitialized()));
83 connect(&socket, SIGNAL(error(QAbstractSocket::SocketError)), this, SLOT(socketError(QAbstractSocket::SocketError)));
84 connect(&socket, SIGNAL(stateChanged(QAbstractSocket::SocketState)), this, SLOT(socketStateChanged(QAbstractSocket::SocketState)));
85 connect(&socket, SIGNAL(readyRead()), this, SLOT(socketHasData()));
87 connect(&socket, SIGNAL(encrypted()), this, SLOT(socketInitialized()));
88 connect(&socket, SIGNAL(sslErrors(const QList<QSslError> &)), this, SLOT(sslErrors(const QList<QSslError> &)));
90 connect(this, SIGNAL(newEvent(Event *)), coreSession()->eventManager(), SLOT(postEvent(Event *)));
92 // Custom rate limiting
93 // These react to the user changing settings in the client
94 connect(this, SIGNAL(useCustomMessageRateSet(bool)), SLOT(updateRateLimiting()));
95 connect(this, SIGNAL(messageRateBurstSizeSet(quint32)), SLOT(updateRateLimiting()));
96 connect(this, SIGNAL(messageRateDelaySet(quint32)), SLOT(updateRateLimiting()));
97 connect(this, SIGNAL(unlimitedMessageRateSet(bool)), SLOT(updateRateLimiting()));
99 // IRCv3 capability handling
100 // These react to CAP messages from the server
101 connect(this, SIGNAL(capAdded(QString)), this, SLOT(serverCapAdded(QString)));
102 connect(this, SIGNAL(capAcknowledged(QString)), this, SLOT(serverCapAcknowledged(QString)));
103 connect(this, SIGNAL(capRemoved(QString)), this, SLOT(serverCapRemoved(QString)));
105 if (Quassel::isOptionSet("oidentd")) {
106 connect(this, SIGNAL(socketInitialized(const CoreIdentity*, QHostAddress, quint16, QHostAddress, quint16)), Core::instance()->oidentdConfigGenerator(), SLOT(addSocket(const CoreIdentity*, QHostAddress, quint16, QHostAddress, quint16)), Qt::BlockingQueuedConnection);
107 connect(this, SIGNAL(socketDisconnected(const CoreIdentity*, QHostAddress, quint16, QHostAddress, quint16)), Core::instance()->oidentdConfigGenerator(), SLOT(removeSocket(const CoreIdentity*, QHostAddress, quint16, QHostAddress, quint16)));
110 if (Quassel::isOptionSet("ident-daemon")) {
111 connect(this, SIGNAL(socketInitialized(const CoreIdentity*, QHostAddress, quint16, QHostAddress, quint16)), Core::instance()->identServer(), SLOT(addSocket(const CoreIdentity*, QHostAddress, quint16, QHostAddress, quint16)), Qt::BlockingQueuedConnection);
112 connect(this, SIGNAL(socketDisconnected(const CoreIdentity*, QHostAddress, quint16, QHostAddress, quint16)), Core::instance()->identServer(), SLOT(removeSocket(const CoreIdentity*, QHostAddress, quint16, QHostAddress, quint16)));
117 CoreNetwork::~CoreNetwork()
119 // Request a proper disconnect, but don't count as user-requested disconnect
120 if (socketConnected()) {
121 // Only try if the socket's fully connected (not initializing or disconnecting).
122 // Force an immediate disconnect, jumping the command queue. Ensures the proper QUIT is
123 // shown even if other messages are queued.
124 disconnectFromIrc(false, QString(), false, true);
125 // Process the putCmd events that trigger the quit. Without this, shutting down the core
126 // results in abrubtly closing the socket rather than sending the QUIT as expected.
127 QCoreApplication::processEvents();
128 // Wait briefly for each network to disconnect. Sometimes it takes a little while to send.
129 if (!forceDisconnect()) {
130 qWarning() << "Timed out quitting network" << networkName() <<
131 "(user ID " << userId() << ")";
134 disconnect(&socket, 0, this, 0); // this keeps the socket from triggering events during clean up
135 delete _userInputHandler;
139 bool CoreNetwork::forceDisconnect(int msecs)
141 if (socket.state() == QAbstractSocket::UnconnectedState) {
142 // Socket already disconnected.
145 // Request a socket-level disconnect if not already happened
146 socket.disconnectFromHost();
147 // Return the result of waiting for disconnect; true if successful, otherwise false
148 return socket.waitForDisconnected(msecs);
152 QString CoreNetwork::channelDecode(const QString &bufferName, const QByteArray &string) const
154 if (!bufferName.isEmpty()) {
155 IrcChannel *channel = ircChannel(bufferName);
157 return channel->decodeString(string);
159 return decodeString(string);
163 QString CoreNetwork::userDecode(const QString &userNick, const QByteArray &string) const
165 IrcUser *user = ircUser(userNick);
167 return user->decodeString(string);
168 return decodeString(string);
172 QByteArray CoreNetwork::channelEncode(const QString &bufferName, const QString &string) const
174 if (!bufferName.isEmpty()) {
175 IrcChannel *channel = ircChannel(bufferName);
177 return channel->encodeString(string);
179 return encodeString(string);
183 QByteArray CoreNetwork::userEncode(const QString &userNick, const QString &string) const
185 IrcUser *user = ircUser(userNick);
187 return user->encodeString(string);
188 return encodeString(string);
192 void CoreNetwork::connectToIrc(bool reconnecting)
194 if (!reconnecting && useAutoReconnect() && _autoReconnectCount == 0) {
195 _autoReconnectTimer.setInterval(autoReconnectInterval() * 1000);
196 if (unlimitedReconnectRetries())
197 _autoReconnectCount = -1;
199 _autoReconnectCount = autoReconnectRetries();
201 if (serverList().isEmpty()) {
202 qWarning() << "Server list empty, ignoring connect request!";
205 CoreIdentity *identity = identityPtr();
207 qWarning() << "Invalid identity configures, ignoring connect request!";
211 // cleaning up old quit reason
214 // Reset capability negotiation tracking, also handling server changes during reconnect
215 _capsQueuedIndividual.clear();
216 _capsQueuedBundled.clear();
218 _capNegotiationActive = false;
219 _capInitialNegotiationEnded = false;
221 // use a random server?
222 if (useRandomServer()) {
223 _lastUsedServerIndex = qrand() % serverList().size();
225 else if (_previousConnectionAttemptFailed) {
226 // cycle to next server if previous connection attempt failed
227 _previousConnectionAttemptFailed = false;
228 displayMsg(Message::Server, BufferInfo::StatusBuffer, "", tr("Connection failed. Cycling to next Server"));
229 if (++_lastUsedServerIndex >= serverList().size()) {
230 _lastUsedServerIndex = 0;
234 // Start out with the top server in the list
235 _lastUsedServerIndex = 0;
238 Server server = usedServer();
239 displayStatusMsg(tr("Connecting to %1:%2...").arg(server.host).arg(server.port));
240 displayMsg(Message::Server, BufferInfo::StatusBuffer, "", tr("Connecting to %1:%2...").arg(server.host).arg(server.port));
242 if (server.useProxy) {
243 QNetworkProxy proxy((QNetworkProxy::ProxyType)server.proxyType, server.proxyHost, server.proxyPort, server.proxyUser, server.proxyPass);
244 socket.setProxy(proxy);
247 socket.setProxy(QNetworkProxy::NoProxy);
252 // Qt caches DNS entries for a minute, resulting in round-robin (e.g. for chat.freenode.net) not working if several users
253 // connect at a similar time. QHostInfo::fromName(), however, always performs a fresh lookup, overwriting the cache entry.
254 if (! server.useProxy) {
255 //Avoid hostname lookups when a proxy is specified. The lookups won't use the proxy and may therefore leak the DNS
256 //hostname of the server. Qt's DNS cache also isn't used by the proxy so we don't need to refresh the entry.
257 QHostInfo::fromName(server.host);
261 CoreIdentity *identity = identityPtr();
263 socket.setLocalCertificate(identity->sslCert());
264 socket.setPrivateKey(identity->sslKey());
266 socket.connectToHostEncrypted(server.host, server.port);
269 socket.connectToHost(server.host, server.port);
272 socket.connectToHost(server.host, server.port);
277 void CoreNetwork::disconnectFromIrc(bool requested, const QString &reason, bool withReconnect,
280 // Disconnecting from the network, should expect a socket close or error
281 _disconnectExpected = true;
282 _quitRequested = requested; // see socketDisconnected();
283 if (!withReconnect) {
284 _autoReconnectTimer.stop();
285 _autoReconnectCount = 0; // prohibiting auto reconnect
287 disablePingTimeout();
294 awayMsg = me_->awayMessage();
295 Core::setAwayMessage(userId(), networkId(), awayMsg);
298 if (reason.isEmpty() && identityPtr())
299 _quitReason = identityPtr()->quitReason();
301 _quitReason = reason;
303 displayMsg(Message::Server, BufferInfo::StatusBuffer, "", tr("Disconnecting. (%1)").arg((!requested && !withReconnect) ? tr("Core Shutdown") : _quitReason));
304 if (socket.state() == QAbstractSocket::UnconnectedState) {
305 socketDisconnected();
307 if (socket.state() == QAbstractSocket::ConnectedState) {
308 userInputHandler()->issueQuit(_quitReason, forceImmediate);
312 if (requested || withReconnect) {
313 // the irc server has 10 seconds to close the socket
314 _socketCloseTimer.start(10000);
320 void CoreNetwork::userInput(BufferInfo buf, QString msg)
322 userInputHandler()->handleUserInput(buf, msg);
326 void CoreNetwork::putRawLine(const QByteArray s, const bool prepend)
328 if (_tokenBucket > 0 || (_skipMessageRates && _msgQueue.size() == 0)) {
329 // If there's tokens remaining, ...
330 // Or rate limits don't apply AND no messages are in queue (to prevent out-of-order), ...
331 // Send the message now.
334 // Otherwise, queue the message for later
336 // Jump to the start, skipping other messages
337 _msgQueue.prepend(s);
339 // Add to back, waiting in order
346 void CoreNetwork::putCmd(const QString &cmd, const QList<QByteArray> ¶ms, const QByteArray &prefix, const bool prepend)
350 if (!prefix.isEmpty())
351 msg += ":" + prefix + " ";
352 msg += cmd.toUpper().toLatin1();
354 for (int i = 0; i < params.size(); i++) {
357 if (i == params.size() - 1 && (params[i].contains(' ') || (!params[i].isEmpty() && params[i][0] == ':')))
363 putRawLine(msg, prepend);
367 void CoreNetwork::putCmd(const QString &cmd, const QList<QList<QByteArray>> ¶ms, const QByteArray &prefix, const bool prependAll)
369 QListIterator<QList<QByteArray>> i(params);
370 while (i.hasNext()) {
371 QList<QByteArray> msg = i.next();
372 putCmd(cmd, msg, prefix, prependAll);
377 void CoreNetwork::setChannelJoined(const QString &channel)
379 queueAutoWhoOneshot(channel); // check this new channel first
381 Core::setChannelPersistent(userId(), networkId(), channel, true);
382 Core::setPersistentChannelKey(userId(), networkId(), channel, _channelKeys[channel.toLower()]);
386 void CoreNetwork::setChannelParted(const QString &channel)
388 removeChannelKey(channel);
389 _autoWhoQueue.removeAll(channel.toLower());
390 _autoWhoPending.remove(channel.toLower());
392 Core::setChannelPersistent(userId(), networkId(), channel, false);
396 void CoreNetwork::addChannelKey(const QString &channel, const QString &key)
399 removeChannelKey(channel);
402 _channelKeys[channel.toLower()] = key;
407 void CoreNetwork::removeChannelKey(const QString &channel)
409 _channelKeys.remove(channel.toLower());
414 Cipher *CoreNetwork::cipher(const QString &target)
416 if (target.isEmpty())
419 if (!Cipher::neededFeaturesAvailable())
422 CoreIrcChannel *channel = qobject_cast<CoreIrcChannel *>(ircChannel(target));
424 return channel->cipher();
426 CoreIrcUser *user = qobject_cast<CoreIrcUser *>(ircUser(target));
428 return user->cipher();
429 } else if (!isChannelName(target)) {
430 return qobject_cast<CoreIrcUser*>(newIrcUser(target))->cipher();
436 QByteArray CoreNetwork::cipherKey(const QString &target) const
438 CoreIrcChannel *c = qobject_cast<CoreIrcChannel*>(ircChannel(target));
440 return c->cipher()->key();
442 CoreIrcUser *u = qobject_cast<CoreIrcUser*>(ircUser(target));
444 return u->cipher()->key();
450 void CoreNetwork::setCipherKey(const QString &target, const QByteArray &key)
452 CoreIrcChannel *c = qobject_cast<CoreIrcChannel*>(ircChannel(target));
454 c->setEncrypted(c->cipher()->setKey(key));
455 coreSession()->setBufferCipher(networkId(), target, key);
459 CoreIrcUser *u = qobject_cast<CoreIrcUser*>(ircUser(target));
460 if (!u && !isChannelName(target))
461 u = qobject_cast<CoreIrcUser*>(newIrcUser(target));
464 u->setEncrypted(u->cipher()->setKey(key));
465 coreSession()->setBufferCipher(networkId(), target, key);
471 bool CoreNetwork::cipherUsesCBC(const QString &target)
473 CoreIrcChannel *c = qobject_cast<CoreIrcChannel*>(ircChannel(target));
475 return c->cipher()->usesCBC();
476 CoreIrcUser *u = qobject_cast<CoreIrcUser*>(ircUser(target));
478 return u->cipher()->usesCBC();
482 #endif /* HAVE_QCA2 */
484 bool CoreNetwork::setAutoWhoDone(const QString &channel)
486 QString chan = channel.toLower();
487 if (_autoWhoPending.value(chan, 0) <= 0)
489 if (--_autoWhoPending[chan] <= 0)
490 _autoWhoPending.remove(chan);
495 void CoreNetwork::setMyNick(const QString &mynick)
497 Network::setMyNick(mynick);
498 if (connectionState() == Network::Initializing)
499 networkInitialized();
503 void CoreNetwork::socketHasData()
505 while (socket.canReadLine()) {
506 QByteArray s = socket.readLine();
507 if (s.endsWith("\r\n"))
509 else if (s.endsWith("\n"))
511 NetworkDataEvent *event = new NetworkDataEvent(EventManager::NetworkIncoming, this, s);
512 event->setTimestamp(QDateTime::currentDateTimeUtc());
513 emit newEvent(event);
518 void CoreNetwork::socketError(QAbstractSocket::SocketError error)
520 // Ignore socket closed errors if expected
521 if (_disconnectExpected && error == QAbstractSocket::RemoteHostClosedError) {
525 _previousConnectionAttemptFailed = true;
526 qWarning() << qPrintable(tr("Could not connect to %1 (%2)").arg(networkName(), socket.errorString()));
527 emit connectionError(socket.errorString());
528 displayMsg(Message::Error, BufferInfo::StatusBuffer, "", tr("Connection failure: %1").arg(socket.errorString()));
529 emitConnectionError(socket.errorString());
530 if (socket.state() < QAbstractSocket::ConnectedState) {
531 socketDisconnected();
536 void CoreNetwork::socketInitialized()
538 CoreIdentity *identity = identityPtr();
540 qCritical() << "Identity invalid!";
545 Server server = usedServer();
548 // Non-SSL connections enter here only once, always emit socketInitialized(...) in these cases
549 // SSL connections call socketInitialized() twice, only emit socketInitialized(...) on the first (not yet encrypted) run
550 if (!server.useSsl || !socket.isEncrypted()) {
551 emit socketInitialized(identity, localAddress(), localPort(), peerAddress(), peerPort());
554 if (server.useSsl && !socket.isEncrypted()) {
555 // We'll finish setup once we're encrypted, and called again
559 emit socketInitialized(identity, localAddress(), localPort(), peerAddress(), peerPort());
562 socket.setSocketOption(QAbstractSocket::KeepAliveOption, true);
564 // Update the TokenBucket, force-enabling unlimited message rates for initial registration and
565 // capability negotiation. networkInitialized() will call updateRateLimiting() without the
566 // force flag to apply user preferences. When making changes, ensure that this still happens!
567 // As Quassel waits for CAP ACK/NAK and AUTHENTICATE replies, this shouldn't ever fill the IRC
568 // server receive queue and cause a kill. "Shouldn't" being the operative word; the real world
570 updateRateLimiting(true);
571 // Fill up the token bucket as we're connecting from scratch
574 // Request capabilities as per IRCv3.2 specifications
575 // Older servers should ignore this; newer servers won't downgrade to RFC1459
576 displayMsg(Message::Server, BufferInfo::StatusBuffer, "", tr("Requesting capability list..."));
577 putRawLine(serverEncode(QString("CAP LS 302")));
579 if (!server.password.isEmpty()) {
580 putRawLine(serverEncode(QString("PASS %1").arg(server.password)));
583 if (identity->nicks().isEmpty()) {
585 qWarning() << "CoreNetwork::socketInitialized(): no nicks supplied for identity Id" << identity->id();
588 nick = identity->nicks()[0];
590 putRawLine(serverEncode(QString("NICK %1").arg(nick)));
591 // Only allow strict-compliant idents when strict mode is enabled
592 putRawLine(serverEncode(QString("USER %1 8 * :%2").arg(
593 coreSession()->strictCompliantIdent(identity),
594 identity->realName())));
598 void CoreNetwork::socketDisconnected()
600 disablePingTimeout();
603 _autoWhoCycleTimer.stop();
604 _autoWhoTimer.stop();
605 _autoWhoQueue.clear();
606 _autoWhoPending.clear();
608 _socketCloseTimer.stop();
610 _tokenBucketTimer.stop();
614 foreach(QString channel, me_->channels())
615 displayMsg(Message::Quit, BufferInfo::ChannelBuffer, channel, _quitReason, me_->hostmask());
619 emit disconnected(networkId());
620 emit socketDisconnected(identityPtr(), localAddress(), localPort(), peerAddress(), peerPort());
621 // Reset disconnect expectations
622 _disconnectExpected = false;
623 if (_quitRequested) {
624 _quitRequested = false;
625 setConnectionState(Network::Disconnected);
626 Core::setNetworkConnected(userId(), networkId(), false);
628 else if (_autoReconnectCount != 0) {
629 setConnectionState(Network::Reconnecting);
630 if (_autoReconnectCount == -1 || _autoReconnectCount == autoReconnectRetries())
631 doAutoReconnect(); // first try is immediate
633 _autoReconnectTimer.start();
638 void CoreNetwork::socketStateChanged(QAbstractSocket::SocketState socketState)
640 Network::ConnectionState state;
641 switch (socketState) {
642 case QAbstractSocket::UnconnectedState:
643 state = Network::Disconnected;
644 socketDisconnected();
646 case QAbstractSocket::HostLookupState:
647 case QAbstractSocket::ConnectingState:
648 state = Network::Connecting;
650 case QAbstractSocket::ConnectedState:
651 state = Network::Initializing;
653 case QAbstractSocket::ClosingState:
654 state = Network::Disconnecting;
657 state = Network::Disconnected;
659 setConnectionState(state);
663 void CoreNetwork::networkInitialized()
665 setConnectionState(Network::Initialized);
667 _disconnectExpected = false;
668 _quitRequested = false;
670 // Update the TokenBucket with specified rate-limiting settings, removing the force-unlimited
671 // flag used for initial registration and capability negotiation.
672 updateRateLimiting();
674 if (useAutoReconnect()) {
676 _autoReconnectCount = unlimitedReconnectRetries() ? -1 : autoReconnectRetries();
679 // restore away state
680 QString awayMsg = Core::awayMessage(userId(), networkId());
681 if (!awayMsg.isEmpty()) {
682 // Don't re-apply any timestamp formatting in order to preserve escaped percent signs, e.g.
683 // '%%%%%%%%' -> '%%%%' If processed again, it'd result in '%%'.
684 userInputHandler()->handleAway(BufferInfo(), awayMsg, true);
691 if (networkConfig()->autoWhoEnabled()) {
692 _autoWhoCycleTimer.start();
693 _autoWhoTimer.start();
694 startAutoWhoCycle(); // FIXME wait for autojoin to be completed
697 Core::bufferInfo(userId(), networkId(), BufferInfo::StatusBuffer); // create status buffer
698 Core::setNetworkConnected(userId(), networkId(), true);
702 void CoreNetwork::sendPerform()
704 BufferInfo statusBuf = BufferInfo::fakeStatusBuffer(networkId());
707 if (useAutoIdentify() && !autoIdentifyService().isEmpty() && !autoIdentifyPassword().isEmpty()) {
708 userInputHandler()->handleMsg(statusBuf, QString("%1 IDENTIFY %2").arg(autoIdentifyService(), autoIdentifyPassword()));
711 // restore old user modes if server default mode is set.
714 if (!me_->userModes().isEmpty()) {
718 connect(me_, SIGNAL(userModesSet(QString)), this, SLOT(restoreUserModes()));
719 connect(me_, SIGNAL(userModesAdded(QString)), this, SLOT(restoreUserModes()));
724 foreach(QString line, perform()) {
725 if (!line.isEmpty()) userInput(statusBuf, line);
728 // rejoin channels we've been in
729 if (rejoinChannels()) {
730 QStringList channels, keys;
731 foreach(QString chan, coreSession()->persistentChannels(networkId()).keys()) {
732 QString key = channelKey(chan);
733 if (!key.isEmpty()) {
734 channels.prepend(chan);
738 channels.append(chan);
741 QString joinString = QString("%1 %2").arg(channels.join(",")).arg(keys.join(",")).trimmed();
742 if (!joinString.isEmpty())
743 userInputHandler()->handleJoin(statusBuf, joinString);
748 void CoreNetwork::restoreUserModes()
753 disconnect(me_, SIGNAL(userModesSet(QString)), this, SLOT(restoreUserModes()));
754 disconnect(me_, SIGNAL(userModesAdded(QString)), this, SLOT(restoreUserModes()));
756 QString modesDelta = Core::userModes(userId(), networkId());
757 QString currentModes = me_->userModes();
759 QString addModes, removeModes;
760 if (modesDelta.contains('-')) {
761 addModes = modesDelta.section('-', 0, 0);
762 removeModes = modesDelta.section('-', 1);
765 addModes = modesDelta;
768 addModes.remove(QRegExp(QString("[%1]").arg(currentModes)));
769 if (currentModes.isEmpty())
770 removeModes = QString();
772 removeModes.remove(QRegExp(QString("[^%1]").arg(currentModes)));
774 if (addModes.isEmpty() && removeModes.isEmpty())
777 if (!addModes.isEmpty())
778 addModes = '+' + addModes;
779 if (!removeModes.isEmpty())
780 removeModes = '-' + removeModes;
782 // don't use InputHandler::handleMode() as it keeps track of our persistent mode changes
783 putRawLine(serverEncode(QString("MODE %1 %2%3").arg(me_->nick()).arg(addModes).arg(removeModes)));
787 void CoreNetwork::updateIssuedModes(const QString &requestedModes)
793 for (int i = 0; i < requestedModes.length(); i++) {
794 if (requestedModes[i] == '+') {
798 if (requestedModes[i] == '-') {
803 addModes += requestedModes[i];
806 removeModes += requestedModes[i];
810 QString addModesOld = _requestedUserModes.section('-', 0, 0);
811 QString removeModesOld = _requestedUserModes.section('-', 1);
813 addModes.remove(QRegExp(QString("[%1]").arg(addModesOld))); // deduplicate
814 addModesOld.remove(QRegExp(QString("[%1]").arg(removeModes))); // update
815 addModes += addModesOld;
817 removeModes.remove(QRegExp(QString("[%1]").arg(removeModesOld))); // deduplicate
818 removeModesOld.remove(QRegExp(QString("[%1]").arg(addModes))); // update
819 removeModes += removeModesOld;
821 _requestedUserModes = QString("%1-%2").arg(addModes).arg(removeModes);
825 void CoreNetwork::updatePersistentModes(QString addModes, QString removeModes)
827 QString persistentUserModes = Core::userModes(userId(), networkId());
829 QString requestedAdd = _requestedUserModes.section('-', 0, 0);
830 QString requestedRemove = _requestedUserModes.section('-', 1);
832 QString persistentAdd, persistentRemove;
833 if (persistentUserModes.contains('-')) {
834 persistentAdd = persistentUserModes.section('-', 0, 0);
835 persistentRemove = persistentUserModes.section('-', 1);
838 persistentAdd = persistentUserModes;
841 // remove modes we didn't issue
842 if (requestedAdd.isEmpty())
843 addModes = QString();
845 addModes.remove(QRegExp(QString("[^%1]").arg(requestedAdd)));
847 if (requestedRemove.isEmpty())
848 removeModes = QString();
850 removeModes.remove(QRegExp(QString("[^%1]").arg(requestedRemove)));
853 persistentAdd.remove(QRegExp(QString("[%1]").arg(addModes)));
854 persistentRemove.remove(QRegExp(QString("[%1]").arg(removeModes)));
857 persistentAdd.remove(QRegExp(QString("[%1]").arg(removeModes)));
858 persistentRemove.remove(QRegExp(QString("[%1]").arg(addModes)));
860 // update issued mode list
861 requestedAdd.remove(QRegExp(QString("[%1]").arg(addModes)));
862 requestedRemove.remove(QRegExp(QString("[%1]").arg(removeModes)));
863 _requestedUserModes = QString("%1-%2").arg(requestedAdd).arg(requestedRemove);
865 persistentAdd += addModes;
866 persistentRemove += removeModes;
867 Core::setUserModes(userId(), networkId(), QString("%1-%2").arg(persistentAdd).arg(persistentRemove));
871 void CoreNetwork::resetPersistentModes()
873 _requestedUserModes = QString('-');
874 Core::setUserModes(userId(), networkId(), QString());
878 void CoreNetwork::setUseAutoReconnect(bool use)
880 Network::setUseAutoReconnect(use);
882 _autoReconnectTimer.stop();
886 void CoreNetwork::setAutoReconnectInterval(quint32 interval)
888 Network::setAutoReconnectInterval(interval);
889 _autoReconnectTimer.setInterval(interval * 1000);
893 void CoreNetwork::setAutoReconnectRetries(quint16 retries)
895 Network::setAutoReconnectRetries(retries);
896 if (_autoReconnectCount != 0) {
897 if (unlimitedReconnectRetries())
898 _autoReconnectCount = -1;
900 _autoReconnectCount = autoReconnectRetries();
905 void CoreNetwork::doAutoReconnect()
907 if (connectionState() != Network::Disconnected && connectionState() != Network::Reconnecting) {
908 qWarning() << "CoreNetwork::doAutoReconnect(): Cannot reconnect while not being disconnected!";
911 if (_autoReconnectCount > 0 || _autoReconnectCount == -1)
912 _autoReconnectCount--; // -2 means we delay the next reconnect
917 void CoreNetwork::sendPing()
919 qint64 now = QDateTime::currentDateTime().toMSecsSinceEpoch();
920 if (_pingCount != 0) {
921 qDebug() << "UserId:" << userId() << "Network:" << networkName() << "missed" << _pingCount << "pings."
922 << "BA:" << socket.bytesAvailable() << "BTW:" << socket.bytesToWrite();
924 if ((int)_pingCount >= networkConfig()->maxPingCount()
925 && (now - _lastPingTime) <= (_pingTimer.interval() + (1 * 1000))) {
926 // In transitioning to 64-bit time, the interval no longer needs converted down to seconds.
927 // However, to reduce the risk of breaking things by changing past behavior, we still allow
928 // up to 1 second missed instead of enforcing a stricter 1 millisecond allowance.
930 // the second check compares the actual elapsed time since the last ping and the pingTimer interval
931 // if the interval is shorter then the actual elapsed time it means that this thread was somehow blocked
932 // and unable to even handle a ping answer. So we ignore those misses.
933 disconnectFromIrc(false, QString("No Ping reply in %1 seconds.").arg(_pingCount * _pingTimer.interval() / 1000), true /* withReconnect */);
938 // Don't send pings until the network is initialized
940 userInputHandler()->handlePing(BufferInfo(), QString());
945 void CoreNetwork::enablePingTimeout(bool enable)
948 disablePingTimeout();
951 if (networkConfig()->pingTimeoutEnabled())
957 void CoreNetwork::disablePingTimeout()
965 void CoreNetwork::setPingInterval(int interval)
967 _pingTimer.setInterval(interval * 1000);
971 /******** Custom Rate Limiting ********/
973 void CoreNetwork::updateRateLimiting(const bool forceUnlimited)
975 // Verify and apply custom rate limiting options, always resetting the delay and burst size
976 // (safe-guarding against accidentally starting the timer), but don't reset the token bucket as
977 // this may be called while connected to a server.
979 if (useCustomMessageRate() || forceUnlimited) {
980 // Custom message rates enabled, or chosen by means of forcing unlimited. Let's go for it!
982 _messageDelay = messageRateDelay();
984 _burstSize = messageRateBurstSize();
985 if (_burstSize < 1) {
986 qWarning() << "Invalid messageRateBurstSize data, cannot have zero message burst size!"
988 // Can't go slower than one message at a time
992 if (_tokenBucket > _burstSize) {
993 // Don't let the token bucket exceed the maximum
994 _tokenBucket = _burstSize;
995 // To fill up the token bucket, use resetRateLimiting(). Don't do that here, otherwise
996 // changing the rate-limit settings while connected to a server will incorrectly reset
1000 // Toggle the timer according to whether or not rate limiting is enabled
1001 // If we're here, either useCustomMessageRate or forceUnlimited is true. Thus, the logic is
1002 // _skipMessageRates = ((useCustomMessageRate && unlimitedMessageRate) || forceUnlimited)
1003 // Override user preferences if called with force unlimited, only used during connect.
1004 _skipMessageRates = (unlimitedMessageRate() || forceUnlimited);
1005 if (_skipMessageRates) {
1006 // If the message queue already contains messages, they need sent before disabling the
1007 // timer. Set the timer to a rapid pace and let it disable itself.
1008 if (_msgQueue.size() > 0) {
1009 qDebug() << "Outgoing message queue contains messages while disabling rate "
1010 "limiting. Sending remaining queued messages...";
1011 // Promptly run the timer again to clear the messages. Rate limiting is disabled,
1012 // so nothing should cause this to block.. in theory. However, don't directly call
1013 // fillBucketAndProcessQueue() in order to keep it on a separate thread.
1015 // TODO If testing shows this isn't needed, it can be simplified to a direct call.
1016 // Hesitant to change it without a wide variety of situations to verify behavior.
1017 _tokenBucketTimer.start(100);
1019 // No rate limiting, disable the timer
1020 _tokenBucketTimer.stop();
1023 // Rate limiting enabled, enable the timer
1024 _tokenBucketTimer.start(_messageDelay);
1027 // Custom message rates disabled. Go for the default.
1029 _skipMessageRates = false; // Enable rate-limiting by default
1030 _messageDelay = 2200; // This seems to be a safe value (2.2 seconds delay)
1031 _burstSize = 5; // 5 messages at once
1032 if (_tokenBucket > _burstSize) {
1033 // TokenBucket to avoid sending too much at once. Don't let the token bucket exceed the
1035 _tokenBucket = _burstSize;
1036 // To fill up the token bucket, use resetRateLimiting(). Don't do that here, otherwise
1037 // changing the rate-limit settings while connected to a server will incorrectly reset
1038 // the token bucket.
1040 // Rate limiting enabled, enable the timer
1041 _tokenBucketTimer.start(_messageDelay);
1045 void CoreNetwork::resetTokenBucket()
1047 // Fill up the token bucket to the maximum
1048 _tokenBucket = _burstSize;
1052 /******** IRCv3 Capability Negotiation ********/
1054 void CoreNetwork::serverCapAdded(const QString &capability)
1056 // Check if it's a known capability; if so, add it to the list
1057 // Handle special cases first
1058 if (capability == IrcCap::SASL) {
1059 // Only request SASL if it's enabled
1060 if (networkInfo().useSasl)
1061 queueCap(capability);
1062 } else if (IrcCap::knownCaps.contains(capability)) {
1063 // Handling for general known capabilities
1064 queueCap(capability);
1068 void CoreNetwork::serverCapAcknowledged(const QString &capability)
1070 // This may be called multiple times in certain situations.
1072 // Handle core-side configuration
1073 if (capability == IrcCap::AWAY_NOTIFY) {
1074 // away-notify enabled, stop the autoWho timers, handle manually
1075 setAutoWhoEnabled(false);
1078 // Handle capabilities that require further messages sent to the IRC server
1079 // If you change this list, ALSO change the list in CoreNetwork::capsRequiringServerMessages
1080 if (capability == IrcCap::SASL) {
1081 // If SASL mechanisms specified, limit to what's accepted for authentication
1082 // if the current identity has a cert set, use SASL EXTERNAL
1085 if (!identityPtr()->sslCert().isNull()) {
1086 if (saslMaybeSupports(IrcCap::SaslMech::EXTERNAL)) {
1087 // EXTERNAL authentication supported, send request
1088 putRawLine(serverEncode("AUTHENTICATE EXTERNAL"));
1090 displayMsg(Message::Error, BufferInfo::StatusBuffer, "",
1091 tr("SASL EXTERNAL authentication not supported"));
1096 if (saslMaybeSupports(IrcCap::SaslMech::PLAIN)) {
1097 // PLAIN authentication supported, send request
1098 // Only working with PLAIN atm, blowfish later
1099 putRawLine(serverEncode("AUTHENTICATE PLAIN"));
1101 displayMsg(Message::Error, BufferInfo::StatusBuffer, "",
1102 tr("SASL PLAIN authentication not supported"));
1111 void CoreNetwork::serverCapRemoved(const QString &capability)
1113 // This may be called multiple times in certain situations.
1115 // Handle special cases here
1116 if (capability == IrcCap::AWAY_NOTIFY) {
1117 // away-notify disabled, enable autoWho according to configuration
1118 setAutoWhoEnabled(networkConfig()->autoWhoEnabled());
1122 void CoreNetwork::queueCap(const QString &capability)
1124 // IRCv3 specs all use lowercase capability names
1125 QString _capLowercase = capability.toLower();
1127 if(capsRequiringConfiguration.contains(_capLowercase)) {
1128 // The capability requires additional configuration before being acknowledged (e.g. SASL),
1129 // so we should negotiate it separately from all other capabilities. Otherwise new
1130 // capabilities will be requested while still configuring the previous one.
1131 if (!_capsQueuedIndividual.contains(_capLowercase)) {
1132 _capsQueuedIndividual.append(_capLowercase);
1135 // The capability doesn't need any special configuration, so it should be safe to try
1136 // bundling together with others. "Should" being the imperative word, as IRC servers can do
1138 if (!_capsQueuedBundled.contains(_capLowercase)) {
1139 _capsQueuedBundled.append(_capLowercase);
1144 QString CoreNetwork::takeQueuedCaps()
1146 // Clear the record of the most recently negotiated capability bundle. Does nothing if the list
1148 _capsQueuedLastBundle.clear();
1150 // First, negotiate all the standalone capabilities that require additional configuration.
1151 if (!_capsQueuedIndividual.empty()) {
1152 // We have an individual capability available. Take the first and pass it back.
1153 return _capsQueuedIndividual.takeFirst();
1154 } else if (!_capsQueuedBundled.empty()) {
1155 // We have capabilities available that can be grouped. Try to fit in as many as within the
1157 // See CoreNetwork::maxCapRequestLength
1159 // Response must have at least one capability regardless of max length for anything to
1161 QString capBundle = _capsQueuedBundled.takeFirst();
1162 QString nextCap("");
1163 while (!_capsQueuedBundled.empty()) {
1164 // As long as capabilities remain, get the next...
1165 nextCap = _capsQueuedBundled.first();
1166 if ((capBundle.length() + 1 + nextCap.length()) <= maxCapRequestLength) {
1167 // [capability + 1 for a space + this new capability] fit within length limits
1168 // Add it to formatted list
1169 capBundle.append(" " + nextCap);
1170 // Add it to most recent bundle of requested capabilities (simplifies retry logic)
1171 _capsQueuedLastBundle.append(nextCap);
1172 // Then remove it from the queue
1173 _capsQueuedBundled.removeFirst();
1175 // We've reached the length limit for a single capability request, stop adding more
1179 // Return this space-separated set of capabilities, removing any extra spaces
1180 return capBundle.trimmed();
1182 // No capabilities left to negotiate, return an empty string.
1187 void CoreNetwork::retryCapsIndividually()
1189 // The most recent set of capabilities got denied by the IRC server. As we don't know what got
1190 // denied, try each capability individually.
1191 if (_capsQueuedLastBundle.empty()) {
1192 // No most recently tried capability set, just return.
1194 // Note: there's little point in retrying individually requested caps during negotiation.
1195 // We know the individual capability was the one that failed, and it's not likely it'll
1196 // suddenly start working within a few seconds. 'cap-notify' provides a better system for
1197 // handling capability removal and addition.
1200 // This should be fairly rare, e.g. services restarting during negotiation, so simplicity wins
1201 // over efficiency. If this becomes an issue, implement a binary splicing system instead,
1202 // keeping track of which halves of the group fail, dividing the set each time.
1204 // Add most recently tried capability set to individual list, re-requesting them one at a time
1205 _capsQueuedIndividual.append(_capsQueuedLastBundle);
1206 // Warn of this issue to explain the slower login. Servers usually shouldn't trigger this.
1207 displayMsg(Message::Server, BufferInfo::StatusBuffer, "",
1208 tr("Could not negotiate some capabilities, retrying individually (%1)...")
1209 .arg(_capsQueuedLastBundle.join(", ")));
1210 // Capabilities are already removed from the capability bundle queue via takeQueuedCaps(), no
1211 // need to remove them here.
1212 // Clear the most recently tried set to reduce risk that mistakes elsewhere causes retrying
1214 _capsQueuedLastBundle.clear();
1217 void CoreNetwork::beginCapNegotiation()
1219 // Don't begin negotiation if no capabilities are queued to request
1220 if (!capNegotiationInProgress()) {
1221 // If the server doesn't have any capabilities, but supports CAP LS, continue on with the
1222 // normal connection.
1223 displayMsg(Message::Server, BufferInfo::StatusBuffer, "", tr("No capabilities available"));
1224 endCapNegotiation();
1228 _capNegotiationActive = true;
1229 displayMsg(Message::Server, BufferInfo::StatusBuffer, "",
1230 tr("Ready to negotiate (found: %1)").arg(caps().join(", ")));
1232 // Build a list of queued capabilities, starting with individual, then bundled, only adding the
1233 // comma separator between the two if needed (both individual and bundled caps exist).
1234 QString queuedCapsDisplay =
1235 _capsQueuedIndividual.join(", ")
1236 + ((!_capsQueuedIndividual.empty() && !_capsQueuedBundled.empty()) ? ", " : "")
1237 + _capsQueuedBundled.join(", ");
1238 displayMsg(Message::Server, BufferInfo::StatusBuffer, "",
1239 tr("Negotiating capabilities (requesting: %1)...").arg(queuedCapsDisplay));
1244 void CoreNetwork::sendNextCap()
1246 if (capNegotiationInProgress()) {
1247 // Request the next set of capabilities and remove them from the list
1248 putRawLine(serverEncode(QString("CAP REQ :%1").arg(takeQueuedCaps())));
1250 // No pending desired capabilities, capability negotiation finished
1251 // If SASL requested but not available, print a warning
1252 if (networkInfo().useSasl && !capEnabled(IrcCap::SASL))
1253 displayMsg(Message::Error, BufferInfo::StatusBuffer, "",
1254 tr("SASL authentication currently not supported by server"));
1256 if (_capNegotiationActive) {
1257 displayMsg(Message::Server, BufferInfo::StatusBuffer, "",
1258 tr("Capability negotiation finished (enabled: %1)").arg(capsEnabled().join(", ")));
1259 _capNegotiationActive = false;
1262 endCapNegotiation();
1266 void CoreNetwork::endCapNegotiation()
1268 // If nick registration is already complete, CAP END is not required
1269 if (!_capInitialNegotiationEnded) {
1270 putRawLine(serverEncode(QString("CAP END")));
1271 _capInitialNegotiationEnded = true;
1275 /******** AutoWHO ********/
1277 void CoreNetwork::startAutoWhoCycle()
1279 if (!_autoWhoQueue.isEmpty()) {
1280 _autoWhoCycleTimer.stop();
1283 _autoWhoQueue = channels();
1286 void CoreNetwork::queueAutoWhoOneshot(const QString &channelOrNick)
1288 // Prepend so these new channels/nicks are the first to be checked
1289 // Don't allow duplicates
1290 if (!_autoWhoQueue.contains(channelOrNick.toLower())) {
1291 _autoWhoQueue.prepend(channelOrNick.toLower());
1293 if (capEnabled(IrcCap::AWAY_NOTIFY)) {
1294 // When away-notify is active, the timer's stopped. Start a new cycle to who this channel.
1295 setAutoWhoEnabled(true);
1300 void CoreNetwork::setAutoWhoDelay(int delay)
1302 _autoWhoTimer.setInterval(delay * 1000);
1306 void CoreNetwork::setAutoWhoInterval(int interval)
1308 _autoWhoCycleTimer.setInterval(interval * 1000);
1312 void CoreNetwork::setAutoWhoEnabled(bool enabled)
1314 if (enabled && isConnected() && !_autoWhoTimer.isActive())
1315 _autoWhoTimer.start();
1316 else if (!enabled) {
1317 _autoWhoTimer.stop();
1318 _autoWhoCycleTimer.stop();
1323 void CoreNetwork::sendAutoWho()
1325 // Don't send autowho if there are still some pending
1326 if (_autoWhoPending.count())
1329 while (!_autoWhoQueue.isEmpty()) {
1330 QString chanOrNick = _autoWhoQueue.takeFirst();
1331 // Check if it's a known channel or nick
1332 IrcChannel *ircchan = ircChannel(chanOrNick);
1333 IrcUser *ircuser = ircUser(chanOrNick);
1335 // Apply channel limiting rules
1336 // If using away-notify, don't impose channel size limits in order to capture away
1337 // state of everyone. Auto-who won't run on a timer so network impact is minimal.
1338 if (networkConfig()->autoWhoNickLimit() > 0
1339 && ircchan->ircUsers().count() >= networkConfig()->autoWhoNickLimit()
1340 && !capEnabled(IrcCap::AWAY_NOTIFY))
1342 _autoWhoPending[chanOrNick.toLower()]++;
1343 } else if (ircuser) {
1344 // Checking a nick, add it to the pending list
1345 _autoWhoPending[ircuser->nick().toLower()]++;
1347 // Not a channel or a nick, skip it
1348 qDebug() << "Skipping who polling of unknown channel or nick" << chanOrNick;
1351 if (supports("WHOX")) {
1352 // Use WHO extended to poll away users and/or user accounts
1353 // See http://faerion.sourceforge.net/doc/irc/whox.var
1354 // And https://github.com/hexchat/hexchat/blob/c874a9525c9b66f1d5ddcf6c4107d046eba7e2c5/src/common/proto-irc.c#L750
1355 putRawLine(serverEncode(QString("WHO %1 %%chtsunfra,%2")
1356 .arg(serverEncode(chanOrNick), QString::number(IrcCap::ACCOUNT_NOTIFY_WHOX_NUM))));
1358 putRawLine(serverEncode(QString("WHO %1").arg(chanOrNick)));
1363 if (_autoWhoQueue.isEmpty() && networkConfig()->autoWhoEnabled() && !_autoWhoCycleTimer.isActive()
1364 && !capEnabled(IrcCap::AWAY_NOTIFY)) {
1365 // Timer was stopped, means a new cycle is due immediately
1366 // Don't run a new cycle if using away-notify; server will notify as appropriate
1367 _autoWhoCycleTimer.start();
1368 startAutoWhoCycle();
1369 } else if (capEnabled(IrcCap::AWAY_NOTIFY) && _autoWhoCycleTimer.isActive()) {
1370 // Don't run another who cycle if away-notify is enabled
1371 _autoWhoCycleTimer.stop();
1377 void CoreNetwork::sslErrors(const QList<QSslError> &sslErrors)
1379 Server server = usedServer();
1380 if (server.sslVerify) {
1381 // Treat the SSL error as a hard error
1382 QString sslErrorMessage = tr("Encrypted connection couldn't be verified, disconnecting "
1383 "since verification is required");
1384 if (!sslErrors.empty()) {
1385 // Add the error reason if known
1386 sslErrorMessage.append(tr(" (Reason: %1)").arg(sslErrors.first().errorString()));
1388 displayMsg(Message::Error, BufferInfo::StatusBuffer, "", sslErrorMessage);
1390 // Disconnect, triggering a reconnect in case it's a temporary issue with certificate
1391 // validity, network trouble, etc.
1392 disconnectFromIrc(false, QString("Encrypted connection not verified"), true /* withReconnect */);
1394 // Treat the SSL error as a warning, continue to connect anyways
1395 QString sslErrorMessage = tr("Encrypted connection couldn't be verified, continuing "
1396 "since verification is not required");
1397 if (!sslErrors.empty()) {
1398 // Add the error reason if known
1399 sslErrorMessage.append(tr(" (Reason: %1)").arg(sslErrors.first().errorString()));
1401 displayMsg(Message::Info, BufferInfo::StatusBuffer, "", sslErrorMessage);
1403 // Proceed with the connection
1404 socket.ignoreSslErrors();
1411 void CoreNetwork::checkTokenBucket()
1413 if (_skipMessageRates) {
1414 if (_msgQueue.size() == 0) {
1415 // Message queue emptied; stop the timer and bail out
1416 _tokenBucketTimer.stop();
1419 // Otherwise, we're emptying the queue, continue on as normal
1422 // Process whatever messages are pending
1423 fillBucketAndProcessQueue();
1427 void CoreNetwork::fillBucketAndProcessQueue()
1429 // If there's less tokens than burst size, refill the token bucket by 1
1430 if (_tokenBucket < _burstSize) {
1434 // As long as there's tokens available and messages remaining, sending messages from the queue
1435 while (_msgQueue.size() > 0 && _tokenBucket > 0) {
1436 writeToSocket(_msgQueue.takeFirst());
1441 void CoreNetwork::writeToSocket(const QByteArray &data)
1444 socket.write("\r\n");
1445 if (!_skipMessageRates) {
1446 // Only subtract from the token bucket if message rate limiting is enabled
1452 Network::Server CoreNetwork::usedServer() const
1454 if (_lastUsedServerIndex < serverList().count())
1455 return serverList()[_lastUsedServerIndex];
1457 if (!serverList().isEmpty())
1458 return serverList()[0];
1460 return Network::Server();
1464 void CoreNetwork::requestConnect() const
1466 if (connectionState() != Disconnected) {
1467 qWarning() << "Requesting connect while already being connected!";
1470 QMetaObject::invokeMethod(const_cast<CoreNetwork *>(this), "connectToIrc", Qt::QueuedConnection);
1474 void CoreNetwork::requestDisconnect() const
1476 if (connectionState() == Disconnected) {
1477 qWarning() << "Requesting disconnect while not being connected!";
1480 userInputHandler()->handleQuit(BufferInfo(), QString());
1484 void CoreNetwork::requestSetNetworkInfo(const NetworkInfo &info)
1486 Network::Server currentServer = usedServer();
1487 setNetworkInfo(info);
1488 Core::updateNetwork(coreSession()->user(), info);
1490 // the order of the servers might have changed,
1491 // so we try to find the previously used server
1492 _lastUsedServerIndex = 0;
1493 for (int i = 0; i < serverList().count(); i++) {
1494 Network::Server server = serverList()[i];
1495 if (server.host == currentServer.host && server.port == currentServer.port) {
1496 _lastUsedServerIndex = i;
1503 QList<QList<QByteArray>> CoreNetwork::splitMessage(const QString &cmd, const QString &message, std::function<QList<QByteArray>(QString &)> cmdGenerator)
1505 QString wrkMsg(message);
1506 QList<QList<QByteArray>> msgsToSend;
1508 // do while (wrkMsg.size() > 0)
1510 // First, check to see if the whole message can be sent at once. The
1511 // cmdGenerator function is passed in by the caller and is used to encode
1512 // and encrypt (if applicable) the message, since different callers might
1513 // want to use different encoding or encode different values.
1514 int splitPos = wrkMsg.size();
1515 QList<QByteArray> initialSplitMsgEnc = cmdGenerator(wrkMsg);
1516 int initialOverrun = userInputHandler()->lastParamOverrun(cmd, initialSplitMsgEnc);
1518 if (initialOverrun) {
1519 // If the message was too long to be sent, first try splitting it along
1520 // word boundaries with QTextBoundaryFinder.
1521 QString splitMsg(wrkMsg);
1522 QTextBoundaryFinder qtbf(QTextBoundaryFinder::Word, splitMsg);
1523 qtbf.setPosition(initialSplitMsgEnc[1].size() - initialOverrun);
1524 QList<QByteArray> splitMsgEnc;
1525 int overrun = initialOverrun;
1528 splitPos = qtbf.toPreviousBoundary();
1530 // splitPos==-1 means the QTBF couldn't find a split point at all and
1531 // splitPos==0 means the QTBF could only find a boundary at the beginning of
1532 // the string. Neither one of these works for us.
1534 // If a split point could be found, split the message there, calculate the
1535 // overrun, and continue with the loop.
1536 splitMsg = splitMsg.left(splitPos);
1537 splitMsgEnc = cmdGenerator(splitMsg);
1538 overrun = userInputHandler()->lastParamOverrun(cmd, splitMsgEnc);
1541 // If a split point could not be found (the beginning of the message
1542 // is reached without finding a split point short enough to send) and we
1543 // are still in Word mode, switch to Grapheme mode. We also need to restore
1544 // the full wrkMsg to splitMsg, since splitMsg may have been cut down during
1545 // the previous attempt to find a split point.
1546 if (qtbf.type() == QTextBoundaryFinder::Word) {
1548 splitPos = splitMsg.size();
1549 QTextBoundaryFinder graphemeQtbf(QTextBoundaryFinder::Grapheme, splitMsg);
1550 graphemeQtbf.setPosition(initialSplitMsgEnc[1].size() - initialOverrun);
1551 qtbf = graphemeQtbf;
1554 // If the QTBF fails to find a split point in Grapheme mode, we give up.
1555 // This should never happen, but it should be handled anyway.
1556 qWarning() << "Unexpected failure to split message!";
1562 // Once a message of sendable length has been found, remove it from the wrkMsg and
1563 // add it to the list of messages to be sent.
1564 wrkMsg.remove(0, splitPos);
1565 msgsToSend.append(splitMsgEnc);
1568 // If the entire remaining message is short enough to be sent all at once, remove
1569 // it from the wrkMsg and add it to the list of messages to be sent.
1570 wrkMsg.remove(0, splitPos);
1571 msgsToSend.append(initialSplitMsgEnc);
1573 } while (wrkMsg.size() > 0);