1 /***************************************************************************
2 * Copyright (C) 2005-2019 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 ***************************************************************************/
21 #include "coresessioneventprocessor.h"
25 #include "coreirclisthelper.h"
26 #include "corenetwork.h"
27 #include "coresession.h"
28 #include "coretransfer.h"
29 #include "coretransfermanager.h"
30 #include "ctcpevent.h"
33 #include "messageevent.h"
38 # include "keyevent.h"
44 CoreSessionEventProcessor::CoreSessionEventProcessor(CoreSession* session)
45 : BasicHandler("handleCtcp", session)
46 , _coreSession(session)
48 connect(coreSession(), &CoreSession::networkDisconnected, this, &CoreSessionEventProcessor::destroyNetsplits);
49 connect(this, &CoreSessionEventProcessor::newEvent, coreSession()->eventManager(), &EventManager::postEvent);
52 bool CoreSessionEventProcessor::checkParamCount(IrcEvent* e, int minParams)
54 if (e->params().count() < minParams) {
55 if (e->type() == EventManager::IrcEventNumeric) {
56 qWarning() << "Command " << static_cast<IrcEventNumeric*>(e)->number() << " requires " << minParams
57 << "params, got: " << e->params();
60 QString name = coreSession()->eventManager()->enumName(e->type());
61 qWarning() << qPrintable(name) << "requires" << minParams << "params, got:" << e->params();
69 void CoreSessionEventProcessor::tryNextNick(NetworkEvent* e, const QString& errnick, bool erroneus)
71 QStringList desiredNicks = coreSession()->identity(e->network()->identity())->nicks();
72 int nextNickIdx = desiredNicks.indexOf(errnick) + 1;
74 if (nextNickIdx > 0 && desiredNicks.size() > nextNickIdx) {
75 nextNick = desiredNicks[nextNickIdx];
79 // FIXME Make this an ErrorEvent or something like that, so it's translated in the client
80 MessageEvent* msgEvent = new MessageEvent(Message::Error,
82 tr("No free and valid nicks in nicklist found. use: /nick <othernick> to continue"),
87 emit newEvent(msgEvent);
91 nextNick = errnick + "_";
94 // FIXME Use a proper output event for this
95 coreNetwork(e)->putRawLine("NICK " + coreNetwork(e)->encodeServerString(nextNick));
98 void CoreSessionEventProcessor::processIrcEventNumeric(IrcEventNumeric* e)
100 switch (e->number()) {
101 // SASL authentication replies
102 // See: http://ircv3.net/specs/extensions/sasl-3.1.html
104 // case 900: // RPL_LOGGEDIN
105 // case 901: // RPL_LOGGEDOUT
106 // Don't use 900 or 901 for updating the local hostmask. Unreal 3.2 gives it as the IP address
107 // even when cloaked.
108 // Every other reply should result in moving on
109 // TODO Handle errors to stop connection if appropriate
110 case 902: // ERR_NICKLOCKED
111 case 903: // RPL_SASLSUCCESS
112 case 904: // ERR_SASLFAIL
113 case 905: // ERR_SASLTOOLONG
114 case 906: // ERR_SASLABORTED
115 case 907: // ERR_SASLALREADY
116 // Move on to the next capability
117 coreNetwork(e)->sendNextCap();
125 void CoreSessionEventProcessor::processIrcEventAuthenticate(IrcEvent* e)
127 if (!checkParamCount(e, 1))
130 if (e->params().at(0) != "+") {
131 qWarning() << "Invalid AUTHENTICATE" << e;
135 CoreNetwork* net = coreNetwork(e);
138 if (net->identityPtr()->sslCert().isNull()) {
140 QString construct = net->saslAccount();
141 construct.append(QChar(QChar::Null));
142 construct.append(net->saslAccount());
143 construct.append(QChar(QChar::Null));
144 construct.append(net->saslPassword());
145 QByteArray saslData = QByteArray(construct.toLatin1().toBase64());
146 saslData.prepend("AUTHENTICATE ");
147 net->putRawLine(saslData);
151 net->putRawLine("AUTHENTICATE +");
156 void CoreSessionEventProcessor::processIrcEventCap(IrcEvent* e)
158 // Handle capability negotiation
159 // See: http://ircv3.net/specs/core/capability-negotiation-3.2.html
160 // And: http://ircv3.net/specs/core/capability-negotiation-3.1.html
162 // All commands require at least 2 parameters
163 if (!checkParamCount(e, 2))
166 CoreNetwork* coreNet = coreNetwork(e);
167 QString capCommand = e->params().at(1).trimmed().toUpper();
168 if (capCommand == "LS" || capCommand == "NEW") {
169 // Either we've gotten a list of capabilities, or new capabilities we may want
170 // Server: CAP * LS * :multi-prefix extended-join account-notify batch invite-notify tls
171 // Server: CAP * LS * :cap-notify server-time example.org/dummy-cap=dummyvalue example.org/second-dummy-cap
172 // Server: CAP * LS :userhost-in-names sasl=EXTERNAL,DH-AES,DH-BLOWFISH,ECDSA-NIST256P-CHALLENGE,PLAIN
173 bool capListFinished;
174 QStringList availableCaps;
175 if (e->params().count() == 4) {
176 // Middle of multi-line reply, ignore the asterisk
177 capListFinished = false;
178 availableCaps = e->params().at(3).split(' ');
182 capListFinished = true;
183 if (e->params().count() >= 3) {
184 // Some capabilities are specified, add them
185 availableCaps = e->params().at(2).split(' ');
188 // No capabilities available, add an empty list
189 availableCaps = QStringList();
192 // Sort capabilities before requesting for consistency among networks. This may avoid
193 // unexpected cases when some networks offer capabilities in a different order than
194 // others. It also looks nicer in logs. Not required.
195 availableCaps.sort();
196 // Store what capabilities are available
197 QString availableCapName, availableCapValue;
198 for (int i = 0; i < availableCaps.count(); ++i) {
199 // Capability may include values, e.g. CAP * LS :multi-prefix sasl=EXTERNAL
200 // Capability name comes before the first '='. If no '=' exists, this gets the
201 // whole string instead.
202 availableCapName = availableCaps[i].section('=', 0, 0).trimmed();
203 // Some capabilities include multiple key=value pairs in the listing,
204 // e.g. "sts=duration=31536000,port=6697"
205 // Include everything after the first equal sign as part of the value. If no '='
206 // exists, this gets an empty string.
207 availableCapValue = availableCaps[i].section('=', 1).trimmed();
208 // Only add the capability if it's non-empty
209 if (!availableCapName.isEmpty()) {
210 coreNet->addCap(availableCapName, availableCapValue);
214 // Begin capability requests when capability listing complete
216 coreNet->beginCapNegotiation();
218 else if (capCommand == "ACK") {
219 // CAP ACK requires at least 3 parameters (no empty response allowed)
220 if (!checkParamCount(e, 3)) {
221 // If an invalid reply is sent, try to continue rather than getting stuck.
222 coreNet->sendNextCap();
226 // Server: CAP * ACK :multi-prefix sasl
227 // Got the capabilities we want, handle as needed.
228 QStringList acceptedCaps;
229 acceptedCaps = e->params().at(2).split(' ');
231 // Store what capability was acknowledged
234 // Keep track of whether or not a capability requires further configuration. Due to queuing
235 // logic in CoreNetwork::queueCap(), this shouldn't ever happen when more than one
236 // capability is requested, but it's better to handle edge cases or faulty servers.
237 bool capsRequireConfiguration = false;
239 for (int i = 0; i < acceptedCaps.count(); ++i) {
240 acceptedCap = acceptedCaps[i].trimmed().toLower();
241 // Mark this cap as accepted
242 coreNet->acknowledgeCap(acceptedCap);
243 if (!capsRequireConfiguration && coreNet->capsRequiringConfiguration.contains(acceptedCap)) {
244 capsRequireConfiguration = true;
245 // Some capabilities (e.g. SASL) require further messages to finish. If so, do NOT
246 // send the next capability; it will be handled elsewhere in CoreNetwork.
247 // Otherwise, allow moving on to the next capability.
251 if (!capsRequireConfiguration) {
252 // No additional configuration required, move on to the next capability
253 coreNet->sendNextCap();
256 else if (capCommand == "NAK" || capCommand == "DEL") {
257 // CAP NAK/DEL require at least 3 parameters (no empty response allowed)
258 if (!checkParamCount(e, 3)) {
259 if (capCommand == "NAK") {
260 // If an invalid reply is sent, try to continue rather than getting stuck. This
261 // only matters for denied caps, not removed caps.
262 coreNet->sendNextCap();
267 // Either something went wrong with the capabilities, or they are no longer supported
269 // Server: CAP * NAK :multi-prefix sasl
271 // Server: :irc.example.com CAP modernclient DEL :multi-prefix sasl
272 // CAP NAK and CAP DEL replies are always single-line
274 QStringList removedCaps;
275 removedCaps = e->params().at(2).split(' ');
277 // Store the capabilities that were denied or removed
279 for (int i = 0; i < removedCaps.count(); ++i) {
280 removedCap = removedCaps[i].trimmed().toLower();
281 // Mark this cap as removed.
282 // For CAP DEL, removes it from use.
283 // For CAP NAK when received before negotiation enabled these capabilities, removeCap()
284 // should do nothing. This merely guards against non-spec servers sending an
285 // unsolicited CAP ACK then later removing that capability.
286 coreNet->removeCap(removedCap);
289 if (capCommand == "NAK") {
290 // Continue negotiation only if this is the result of denied caps, not removed caps
291 if (removedCaps.count() > 1) {
292 // We've received a CAP NAK reply to multiple capabilities at once. Unfortunately,
293 // we don't know which capability failed and which ones are valid to re-request, so
294 // individually retry each capability from the failed bundle.
295 // See CoreNetwork::retryCapsIndividually() for more details.
296 coreNet->retryCapsIndividually();
297 // Still need to call sendNextCap() to carry on.
299 // Carry on with negotiation
300 coreNet->sendNextCap();
305 /* IRCv3 account-notify
306 * Log in: ":nick!user@host ACCOUNT accountname"
307 * Log out: ":nick!user@host ACCOUNT *" */
308 void CoreSessionEventProcessor::processIrcEventAccount(IrcEvent* e)
310 if (!checkParamCount(e, 1))
313 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
315 // WHOX uses '0' to indicate logged-out, account-notify and extended-join uses '*'.
316 // As '*' is used internally to represent logged-out, no need to handle that differently.
317 ircuser->setAccount(e->params().at(0));
320 qDebug() << "Received account-notify data for unknown user" << e->prefix();
324 /* IRCv3 away-notify - ":nick!user@host AWAY [:message]" */
325 void CoreSessionEventProcessor::processIrcEventAway(IrcEvent* e)
327 if (!checkParamCount(e, 1))
329 // Don't use checkParamCount(e, 2) since the message is optional. Some servers respond in a way
330 // that it counts as two parameters, but we shouldn't rely on that.
332 // Nick is sent as part of parameters in order to split user/server decoding
333 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
335 // If two parameters are sent -and- the second parameter isn't empty, then user is away.
336 // Otherwise, mark them as not away.
337 if (e->params().count() >= 2 && !e->params().at(1).isEmpty()) {
338 ircuser->setAway(true);
339 ircuser->setAwayMessage(e->params().at(1));
342 ircuser->setAway(false);
346 qDebug() << "Received away-notify data for unknown user" << e->params().at(0);
350 /* IRCv3 chghost - ":nick!user@host CHGHOST newuser new.host.goes.here" */
351 void CoreSessionEventProcessor::processIrcEventChghost(IrcEvent* e)
353 if (!checkParamCount(e, 2))
356 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
358 // Update with new user/hostname information. setUser/setHost handles checking what
360 ircuser->setUser(e->params().at(0));
361 ircuser->setHost(e->params().at(1));
364 qDebug() << "Received chghost data for unknown user" << e->prefix();
368 void CoreSessionEventProcessor::processIrcEventInvite(IrcEvent* e)
370 if (checkParamCount(e, 2)) {
371 e->network()->updateNickFromMask(e->prefix());
375 /* JOIN: ":<nick!user@host> JOIN <channel>" */
376 void CoreSessionEventProcessor::processIrcEventJoin(IrcEvent* e)
378 if (e->testFlag(EventManager::Fake)) // generated by handleEarlyNetsplitJoin
381 if (!checkParamCount(e, 1))
384 CoreNetwork* net = coreNetwork(e);
385 QString channel = e->params()[0];
386 IrcUser* ircuser = net->updateNickFromMask(e->prefix());
388 if (net->capEnabled(IrcCap::EXTENDED_JOIN)) {
389 if (e->params().count() < 3) {
390 // Some IRC servers don't send extended-join events in all situations. Rather than
391 // ignore the join entirely, treat it as a regular join with a debug-level log entry.
392 // See: https://github.com/inspircd/inspircd/issues/821
393 qDebug() << "extended-join requires 3 params, got:" << e->params()
394 << ", handling as a "
398 // If logged in, :nick!user@host JOIN #channelname accountname :Real Name
399 // If logged out, :nick!user@host JOIN #channelname * :Real Name
400 // See: http://ircv3.net/specs/extensions/extended-join-3.1.html
401 // WHOX uses '0' to indicate logged-out, account-notify and extended-join uses '*'.
402 // As '*' is used internally to represent logged-out, no need to handle that differently.
403 ircuser->setAccount(e->params()[1]);
404 // Update the user's real name, too
405 ircuser->setRealName(e->params()[2]);
408 // Else :nick!user@host JOIN #channelname
410 bool handledByNetsplit = false;
411 for (Netsplit* n : _netsplits.value(e->network())) {
412 handledByNetsplit = n->userJoined(e->prefix(), channel);
413 if (handledByNetsplit)
417 // With "away-notify" enabled, some IRC servers forget to send :away messages for users who join
418 // channels while away. Unfortunately, working around this involves WHO'ng every single user as
419 // they join, which is not very efficient. If at all possible, it's better to get the issue
420 // fixed in the IRC server instead.
422 // If pursuing a workaround instead, this is where you'd do it. Check the version control
423 // history for the commit that added this comment to see how to implement it - there's some
424 // unexpected situations to watch out for!
426 // See https://ircv3.net/specs/extensions/away-notify-3.1.html
428 if (!handledByNetsplit)
429 ircuser->joinChannel(channel);
431 e->setFlag(EventManager::Netsplit);
433 if (net->isMe(ircuser)) {
434 net->setChannelJoined(channel);
435 // Mark the message as Self
436 e->setFlag(EventManager::Self);
438 net->putRawLine(net->serverEncode("MODE " + channel)); // we want to know the modes of the channel we just joined, so we ask politely
442 void CoreSessionEventProcessor::lateProcessIrcEventKick(IrcEvent* e)
444 if (checkParamCount(e, 2)) {
445 e->network()->updateNickFromMask(e->prefix());
446 IrcUser* victim = e->network()->ircUser(e->params().at(1));
448 victim->partChannel(e->params().at(0));
449 // if(e->network()->isMe(victim)) e->network()->setKickedFromChannel(channel);
454 void CoreSessionEventProcessor::processIrcEventMode(IrcEvent* e)
456 if (!checkParamCount(e, 2))
459 if (e->network()->isChannelName(e->params().first())) {
462 IrcChannel* channel = e->network()->ircChannel(e->params()[0]);
464 // we received mode information for a channel we're not in. that means probably we've just been kicked out or something like
465 // that anyways: we don't have a place to store the data --> discard the info.
469 QString modes = e->params()[1];
472 for (auto mode : modes) {
482 if (e->network()->prefixModes().contains(mode)) {
483 // user channel modes (op, voice, etc...)
484 if (paramOffset < e->params().count()) {
485 IrcUser* ircUser = e->network()->ircUser(e->params()[paramOffset]);
487 qWarning() << Q_FUNC_INFO << "Unknown IrcUser:" << e->params()[paramOffset];
491 bool handledByNetsplit = false;
492 QHash<QString, Netsplit*> splits = _netsplits.value(e->network());
493 for (Netsplit* n : _netsplits.value(e->network())) {
494 handledByNetsplit = n->userAlreadyJoined(ircUser->hostmask(), channel->name());
495 if (handledByNetsplit) {
496 n->addMode(ircUser->hostmask(), channel->name(), QString(mode));
500 if (!handledByNetsplit)
501 channel->addUserMode(ircUser, QString(mode));
504 channel->removeUserMode(ircUser, QString(mode));
508 qWarning() << "Received MODE with too few parameters:" << e->params();
513 // regular channel modes
515 Network::ChannelModeType modeType = e->network()->channelModeType(mode);
516 if (modeType == Network::A_CHANMODE || modeType == Network::B_CHANMODE || (modeType == Network::C_CHANMODE && add)) {
517 if (paramOffset < e->params().count()) {
518 value = e->params()[paramOffset];
521 qWarning() << "Received MODE with too few parameters:" << e->params();
527 channel->addChannelMode(mode, value);
529 channel->removeChannelMode(mode, value);
535 IrcUser* ircUser = e->network()->newIrcUser(e->params().first());
536 QString modeString(e->params()[1]);
540 for (int c = 0; c < modeString.count(); c++) {
541 if (modeString[c] == '+') {
545 if (modeString[c] == '-') {
550 addModes += modeString[c];
552 removeModes += modeString[c];
554 if (!addModes.isEmpty())
555 ircUser->addUserModes(addModes);
556 if (!removeModes.isEmpty())
557 ircUser->removeUserModes(removeModes);
559 if (e->network()->isMe(ircUser)) {
560 // Mark the message as Self
561 e->setFlag(EventManager::Self);
562 coreNetwork(e)->updatePersistentModes(addModes, removeModes);
567 void CoreSessionEventProcessor::processIrcEventNick(IrcEvent* e)
569 if (checkParamCount(e, 1)) {
570 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
572 qWarning() << Q_FUNC_INFO << "Unknown IrcUser!";
576 if (e->network()->isMe(ircuser)) {
577 // Mark the message as Self
578 e->setFlag(EventManager::Self);
581 // Actual processing is handled in lateProcessIrcEventNick(), this just sets the event flag
585 void CoreSessionEventProcessor::lateProcessIrcEventNick(IrcEvent* e)
587 if (checkParamCount(e, 1)) {
588 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
590 qWarning() << Q_FUNC_INFO << "Unknown IrcUser!";
593 QString newnick = e->params().at(0);
594 QString oldnick = ircuser->nick();
596 // the order is cruicial
597 // otherwise the client would rename the buffer, see that the assigned ircuser doesn't match anymore
598 // and remove the ircuser from the querybuffer leading to a wrong on/offline state
599 ircuser->setNick(newnick);
600 coreSession()->renameBuffer(e->networkId(), newnick, oldnick);
604 void CoreSessionEventProcessor::processIrcEventPart(IrcEvent* e)
606 if (checkParamCount(e, 1)) {
607 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
609 qWarning() << Q_FUNC_INFO << "Unknown IrcUser!";
613 if (e->network()->isMe(ircuser)) {
614 // Mark the message as Self
615 e->setFlag(EventManager::Self);
618 // Actual processing is handled in lateProcessIrcEventNick(), this just sets the event flag
622 void CoreSessionEventProcessor::lateProcessIrcEventPart(IrcEvent* e)
624 if (checkParamCount(e, 1)) {
625 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
627 qWarning() << Q_FUNC_INFO << "Unknown IrcUser!";
630 QString channel = e->params().at(0);
631 ircuser->partChannel(channel);
632 if (e->network()->isMe(ircuser)) {
633 qobject_cast<CoreNetwork*>(e->network())->setChannelParted(channel);
638 void CoreSessionEventProcessor::processIrcEventPing(IrcEvent* e)
640 QString param = e->params().count() ? e->params().first() : QString();
642 // Take priority so this won't get stuck behind other queued messages.
643 coreNetwork(e)->putRawLine("PONG " + coreNetwork(e)->serverEncode(param), true);
646 void CoreSessionEventProcessor::processIrcEventPong(IrcEvent* e)
648 // Ensure we get at least one parameter
649 if (!checkParamCount(e, 1))
652 // Some IRC servers respond with only one parameter, others respond with two, with the latter
653 // being the text sent. Handle both situations.
655 if (e->params().count() < 2) {
656 // Only one parameter received
657 // :localhost PONG 02:43:49.565
658 timestamp = e->params().at(0);
661 // Two parameters received, pick the second
662 // :localhost PONG localhost :02:43:49.565
663 timestamp = e->params().at(1);
666 // The server is supposed to send back what we passed as parameter, and we send a timestamp.
667 // However, using quote and whatnot, one can send arbitrary pings, and IRC servers may decide to
668 // ignore our requests entirely and send whatever they want, so we have to do some sanity
671 // Attempt to parse the timestamp
672 QTime sendTime = QTime::fromString(timestamp, "hh:mm:ss.zzz");
673 if (sendTime.isValid()) {
674 // Mark IRC server as sending valid ping replies
675 if (!coreNetwork(e)->isPongTimestampValid()) {
676 coreNetwork(e)->setPongTimestampValid(true);
677 // Add a message the first time it happens
678 qDebug().nospace() << "Received PONG with valid timestamp, marking pong replies on "
680 << "\"" << qPrintable(e->network()->networkName())
681 << "\" (ID: " << qPrintable(QString::number(e->network()->networkId().toInt()))
682 << ") as usable for latency measurement";
684 // Remove pending flag
685 coreNetwork(e)->resetPongReplyPending();
687 // Don't show this in the UI
688 e->setFlag(EventManager::Silent);
689 // TODO: To allow for a user-sent /ping (without arguments, so default timestamp is used),
690 // this could track how many automated PINGs have been sent by the core and subtract one
691 // each time, only marking the PING as silent if there's pending automated pong replies.
692 // However, that's a behavior change which warrants further testing. For now, take the
693 // simpler, previous approach that errs on the side of silencing too much.
695 // Calculate latency from time difference, divided by 2 to account for round-trip time
696 e->network()->setLatency(sendTime.msecsTo(QTime::currentTime()) / 2);
698 else if (coreNetwork(e)->isPongReplyPending() && !coreNetwork(e)->isPongTimestampValid()) {
699 // There's an auto-PING reply pending and we've not yet received a PONG reply with a valid
700 // timestamp. It's possible this server will never respond with a valid timestamp, and thus
701 // any automated PINGs will result in unwanted spamming of the server buffer.
703 // Don't show this in the UI
704 e->setFlag(EventManager::Silent);
705 // Remove pending flag
706 coreNetwork(e)->resetPongReplyPending();
709 qDebug().nospace() << "Received PONG with invalid timestamp from network "
710 << "\"" << qPrintable(e->network()->networkName())
711 << "\" (ID: " << qPrintable(QString::number(e->network()->networkId().toInt()))
712 << "), silencing, parameters are " << e->params();
714 // else: We're not expecting a PONG reply and timestamp is not valid, assume it's from the user
717 void CoreSessionEventProcessor::processIrcEventQuit(IrcEvent* e)
719 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
723 if (e->network()->isMe(ircuser)) {
724 // Mark the message as Self
725 e->setFlag(EventManager::Self);
729 if (e->params().count() > 0)
730 msg = e->params()[0];
733 if (Netsplit::isNetsplit(msg)) {
735 if (!_netsplits[e->network()].contains(msg)) {
736 n = new Netsplit(e->network(), this);
737 connect(n, &Netsplit::finished, this, &CoreSessionEventProcessor::handleNetsplitFinished);
738 connect(n, &Netsplit::netsplitJoin, this, &CoreSessionEventProcessor::handleNetsplitJoin);
739 connect(n, &Netsplit::netsplitQuit, this, &CoreSessionEventProcessor::handleNetsplitQuit);
740 connect(n, &Netsplit::earlyJoin, this, &CoreSessionEventProcessor::handleEarlyNetsplitJoin);
741 _netsplits[e->network()].insert(msg, n);
744 n = _netsplits[e->network()][msg];
746 // add this user to the netsplit
747 n->userQuit(e->prefix(), ircuser->channels(), msg);
748 e->setFlag(EventManager::Netsplit);
750 // normal quit is handled in lateProcessIrcEventQuit()
753 void CoreSessionEventProcessor::lateProcessIrcEventQuit(IrcEvent* e)
755 if (e->testFlag(EventManager::Netsplit))
758 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
765 void CoreSessionEventProcessor::processIrcEventTopic(IrcEvent* e)
767 if (checkParamCount(e, 2)) {
768 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
770 if (e->network()->isMe(ircuser)) {
771 // Mark the message as Self
772 e->setFlag(EventManager::Self);
775 IrcChannel* channel = e->network()->ircChannel(e->params().at(0));
777 channel->setTopic(e->params().at(1));
781 /* ERROR - "ERROR :reason"
782 Example: ERROR :Closing Link: nickname[xxx.xxx.xxx.xxx] (Large base64 image paste.)
783 See https://tools.ietf.org/html/rfc2812#section-3.7.4 */
784 void CoreSessionEventProcessor::processIrcEventError(IrcEvent* e)
786 if (!checkParamCount(e, 1))
789 if (coreNetwork(e)->disconnectExpected()) {
790 // During QUIT, the server should send an error (often, but not always, "Closing Link"). As
791 // we're expecting it, don't show this to the user.
792 e->setFlag(EventManager::Silent);
797 void CoreSessionEventProcessor::processKeyEvent(KeyEvent* e)
799 if (!Cipher::neededFeaturesAvailable()) {
800 emit newEvent(new MessageEvent(Message::Error,
802 tr("Unable to perform key exchange, missing qca-ossl plugin."),
809 auto* net = qobject_cast<CoreNetwork*>(e->network());
810 Cipher* c = net->cipher(e->target());
811 if (!c) // happens when there is no CoreIrcChannel for the target (i.e. never?)
814 if (e->exchangeType() == KeyEvent::Init) {
815 QByteArray pubKey = c->parseInitKeyX(e->key());
816 if (pubKey.isEmpty()) {
817 emit newEvent(new MessageEvent(Message::Error,
819 tr("Unable to parse the DH1080_INIT. Key exchange failed."),
827 net->setCipherKey(e->target(), c->key());
828 emit newEvent(new MessageEvent(Message::Info,
830 tr("Your key is set and messages will be encrypted."),
836 p << net->serverEncode(e->target()) << net->serverEncode("DH1080_FINISH ") + pubKey;
837 net->putCmd("NOTICE", p);
841 if (c->parseFinishKeyX(e->key())) {
842 net->setCipherKey(e->target(), c->key());
843 emit newEvent(new MessageEvent(Message::Info,
845 tr("Your key is set and messages will be encrypted."),
852 emit newEvent(new MessageEvent(Message::Info,
854 tr("Failed to parse DH1080_FINISH. Key exchange failed."),
865 void CoreSessionEventProcessor::processIrcEvent001(IrcEventNumeric* e)
867 e->network()->setCurrentServer(e->prefix());
868 e->network()->setMyNick(e->target());
872 // TODO Complete 005 handling, also use sensible defaults for non-sent stuff
873 void CoreSessionEventProcessor::processIrcEvent005(IrcEvent* e)
875 if (!checkParamCount(e, 1))
879 for (int i = 0; i < e->params().count() - 1; i++) {
880 QString key = e->params()[i].section("=", 0, 0);
881 QString value = e->params()[i].section("=", 1);
882 e->network()->addSupport(key, value);
885 /* determine our prefixes here to get an accurate result */
886 e->network()->determinePrefixes();
889 /* RPL_UMODEIS - "<user_modes> [<user_mode_params>]" */
890 void CoreSessionEventProcessor::processIrcEvent221(IrcEvent*)
892 // TODO: save information in network object
895 /* RPL_STATSCONN - "Highest connection cout: 8000 (7999 clients)" */
896 void CoreSessionEventProcessor::processIrcEvent250(IrcEvent*)
898 // TODO: save information in network object
901 /* RPL_LOCALUSERS - "Current local user: 5024 Max: 7999 */
902 void CoreSessionEventProcessor::processIrcEvent265(IrcEvent*)
904 // TODO: save information in network object
907 /* RPL_GLOBALUSERS - "Current global users: 46093 Max: 47650" */
908 void CoreSessionEventProcessor::processIrcEvent266(IrcEvent*)
910 // TODO: save information in network object
915 Replies 311 - 313, 317 - 319 are all replies generated in response to a WHOIS message.
917 "<nick> :<away message>"
919 Replies 352 and 315 paired are used to answer a WHO message.
922 Replies 314 and 369 are responses to a WHOWAS message.
926 /* RPL_AWAY - "<nick> :<away message>" */
927 void CoreSessionEventProcessor::processIrcEvent301(IrcEvent* e)
929 if (!checkParamCount(e, 2))
932 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
934 ircuser->setAway(true);
935 ircuser->setAwayMessage(e->params().at(1));
936 // lastAwayMessageTime is set in EventStringifier::processIrcEvent301(), no need to set it
938 // ircuser->setLastAwayMessageTime(now);
942 /* RPL_UNAWAY - ":You are no longer marked as being away" */
943 void CoreSessionEventProcessor::processIrcEvent305(IrcEvent* e)
945 IrcUser* me = e->network()->me();
949 if (e->network()->autoAwayActive()) {
950 e->network()->setAutoAwayActive(false);
951 e->setFlag(EventManager::Silent);
955 /* RPL_NOWAWAY - ":You have been marked as being away" */
956 void CoreSessionEventProcessor::processIrcEvent306(IrcEvent* e)
958 IrcUser* me = e->network()->me();
963 /* RPL_WHOISSERVICE - "<user> is registered nick" */
964 void CoreSessionEventProcessor::processIrcEvent307(IrcEvent* e)
966 if (!checkParamCount(e, 1))
969 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
971 ircuser->setWhoisServiceReply(e->params().join(" "));
974 /* RPL_SUSERHOST - "<user> is available for help." */
975 void CoreSessionEventProcessor::processIrcEvent310(IrcEvent* e)
977 if (!checkParamCount(e, 1))
980 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
982 ircuser->setSuserHost(e->params().join(" "));
985 /* RPL_WHOISUSER - "<nick> <user> <host> * :<real name>" */
986 void CoreSessionEventProcessor::processIrcEvent311(IrcEvent* e)
988 if (!checkParamCount(e, 3))
991 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
993 ircuser->setUser(e->params().at(1));
994 ircuser->setHost(e->params().at(2));
995 ircuser->setRealName(e->params().last());
999 /* RPL_WHOISSERVER - "<nick> <server> :<server info>" */
1000 void CoreSessionEventProcessor::processIrcEvent312(IrcEvent* e)
1002 if (!checkParamCount(e, 2))
1005 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
1007 ircuser->setServer(e->params().at(1));
1010 /* RPL_WHOISOPERATOR - "<nick> :is an IRC operator" */
1011 void CoreSessionEventProcessor::processIrcEvent313(IrcEvent* e)
1013 if (!checkParamCount(e, 1))
1016 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
1018 ircuser->setIrcOperator(e->params().last());
1021 /* RPL_ENDOFWHO: "<name> :End of WHO list" */
1022 void CoreSessionEventProcessor::processIrcEvent315(IrcEvent* e)
1024 if (!checkParamCount(e, 1))
1027 if (coreNetwork(e)->setAutoWhoDone(e->params()[0]))
1028 e->setFlag(EventManager::Silent);
1031 /* RPL_WHOISIDLE - "<nick> <integer> :seconds idle"
1032 (real life: "<nick> <integer> <integer> :seconds idle, signon time) */
1033 void CoreSessionEventProcessor::processIrcEvent317(IrcEvent* e)
1035 if (!checkParamCount(e, 2))
1038 QDateTime loginTime;
1040 int idleSecs = e->params()[1].toInt();
1041 if (e->params().count() > 3) { // if we have more then 3 params we have the above mentioned "real life" situation
1042 // Allow for 64-bit time
1043 qint64 logintime = e->params()[2].toLongLong();
1044 // Time in IRC protocol is defined as seconds. Convert from seconds instead.
1045 // See https://doc.qt.io/qt-5/qdatetime.html#fromSecsSinceEpoch
1046 #if QT_VERSION >= 0x050800
1047 loginTime = QDateTime::fromSecsSinceEpoch(logintime);
1049 // fromSecsSinceEpoch() was added in Qt 5.8. Manually downconvert to seconds for
1051 // See https://doc.qt.io/qt-5/qdatetime.html#fromMSecsSinceEpoch
1052 loginTime = QDateTime::fromMSecsSinceEpoch((qint64)(logintime * 1000));
1056 IrcUser* ircuser = e->network()->ircUser(e->params()[0]);
1058 ircuser->setIdleTime(e->timestamp().addSecs(-idleSecs));
1059 if (loginTime.isValid())
1060 ircuser->setLoginTime(loginTime);
1064 /* RPL_LIST - "<channel> <# visible> :<topic>" */
1065 void CoreSessionEventProcessor::processIrcEvent322(IrcEvent* e)
1067 if (!checkParamCount(e, 1))
1070 QString channelName;
1071 quint32 userCount = 0;
1074 switch (e->params().count()) {
1076 topic = e->params()[2];
1079 userCount = e->params()[1].toUInt();
1082 channelName = e->params()[0];
1087 if (coreSession()->ircListHelper()->addChannel(e->networkId(), channelName, userCount, topic))
1088 e->stop(); // consumed by IrcListHelper, so don't further process/show this event
1091 /* RPL_LISTEND ":End of LIST" */
1092 void CoreSessionEventProcessor::processIrcEvent323(IrcEvent* e)
1094 if (!checkParamCount(e, 1))
1097 if (coreSession()->ircListHelper()->endOfChannelList(e->networkId()))
1098 e->stop(); // consumed by IrcListHelper, so don't further process/show this event
1101 /* RPL_CHANNELMODEIS - "<channel> <mode> <mode params>" */
1102 void CoreSessionEventProcessor::processIrcEvent324(IrcEvent* e)
1104 processIrcEventMode(e);
1107 /* RPL_WHOISACCOUNT - "<nick> <account> :is authed as" */
1108 void CoreSessionEventProcessor::processIrcEvent330(IrcEvent* e)
1110 // Though the ":is authed as" remark should always be there, we should handle cases when it's
1111 // not included, too.
1112 if (!checkParamCount(e, 2))
1115 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
1117 ircuser->setAccount(e->params().at(1));
1122 void CoreSessionEventProcessor::processIrcEvent331(IrcEvent* e)
1124 if (!checkParamCount(e, 1))
1127 IrcChannel* chan = e->network()->ircChannel(e->params()[0]);
1129 chan->setTopic(QString());
1133 void CoreSessionEventProcessor::processIrcEvent332(IrcEvent* e)
1135 if (!checkParamCount(e, 2))
1138 IrcChannel* chan = e->network()->ircChannel(e->params()[0]);
1140 chan->setTopic(e->params()[1]);
1143 /* RPL_WHOREPLY: "<channel> <user> <host> <server> <nick>
1144 ( "H" / "G" > ["*"] [ ( "@" / "+" ) ] :<hopcount> <real name>" */
1145 void CoreSessionEventProcessor::processIrcEvent352(IrcEvent* e)
1147 if (!checkParamCount(e, 6))
1150 QString channel = e->params()[0];
1151 IrcUser* ircuser = e->network()->ircUser(e->params()[4]);
1153 // Only process the WHO information if an IRC user exists. Don't create an IRC user here;
1154 // there's no way to track when the user quits, which would leave a phantom IrcUser lying
1156 // NOTE: Whenever MONITOR support is introduced, the IrcUser will be created by an
1157 // RPL_MONONLINE numeric before any WHO commands are run.
1158 processWhoInformation(e->network(),
1165 e->params().last().section(" ", 1));
1168 // Check if channel name has a who in progress.
1169 if (coreNetwork(e)->isAutoWhoInProgress(channel)) {
1170 e->setFlag(EventManager::Silent);
1175 void CoreSessionEventProcessor::processIrcEvent353(IrcEvent* e)
1177 if (!checkParamCount(e, 3))
1180 // param[0] is either "=", "*" or "@" indicating a public, private or secret channel
1181 // we don't use this information at the time beeing
1182 QString channelname = e->params()[1];
1184 IrcChannel* channel = e->network()->ircChannel(channelname);
1186 qWarning() << Q_FUNC_INFO << "Received unknown target channel:" << channelname;
1193 // Cache result of multi-prefix to avoid unneeded casts and lookups with each iteration.
1194 bool _useCapMultiPrefix = coreNetwork(e)->capEnabled(IrcCap::MULTI_PREFIX);
1196 for (QString nick : e->params()[2].split(' ', QString::SkipEmptyParts)) {
1199 if (_useCapMultiPrefix) {
1200 // If multi-prefix is enabled, all modes will be sent in NAMES replies.
1201 // :hades.arpa 353 guest = #tethys :~&@%+aji &@Attila @+alyx +KindOne Argure
1202 // See: http://ircv3.net/specs/extensions/multi-prefix-3.1.html
1203 while (e->network()->prefixes().contains(nick[0])) {
1204 // Mode found in 1 left-most character, add it to the list.
1205 // Note: sending multiple modes may cause a warning in older clients.
1206 // In testing, the clients still seemed to function fine.
1207 mode.append(e->network()->prefixToMode(nick[0]));
1208 // Remove this mode from the nick
1209 nick = nick.remove(0, 1);
1212 else if (e->network()->prefixes().contains(nick[0])) {
1213 // Multi-prefix is disabled and a mode prefix was found.
1214 mode = e->network()->prefixToMode(nick[0]);
1218 // If userhost-in-names capability is enabled, the following will be
1219 // in the form "nick!user@host" rather than "nick". This works without
1220 // special handling as the following use nickFromHost() as needed.
1221 // See: http://ircv3.net/specs/extensions/userhost-in-names-3.2.html
1227 channel->joinIrcUsers(nicks, modes);
1230 /* RPL_WHOSPCRPL: "<yournick> 152 #<channel> ~<ident> <host> <servname> <nick>
1231 ("H"/ "G") <account> :<realname>"
1232 <channel> is * if not specific to any channel
1233 <account> is * if not logged in
1234 Follows HexChat's usage of 'whox'
1235 See https://github.com/hexchat/hexchat/blob/c874a9525c9b66f1d5ddcf6c4107d046eba7e2c5/src/common/proto-irc.c#L750
1236 And http://faerion.sourceforge.net/doc/irc/whox.var*/
1237 void CoreSessionEventProcessor::processIrcEvent354(IrcEvent* e)
1239 // First only check if at least one parameter exists. Otherwise, it'll stop the result from
1240 // being shown if the user chooses different parameters.
1241 if (!checkParamCount(e, 1))
1244 if (e->params()[0].toUInt() != IrcCap::ACCOUNT_NOTIFY_WHOX_NUM) {
1245 // Ignore WHOX replies without expected number for we have no idea what fields are specified
1249 // Now we're fairly certain this is supposed to be an automated WHOX. Bail out if it doesn't
1250 // match what we require - 9 parameters.
1251 if (!checkParamCount(e, 9))
1254 QString channel = e->params()[1];
1255 IrcUser* ircuser = e->network()->ircUser(e->params()[5]);
1257 // Only process the WHO information if an IRC user exists. Don't create an IRC user here;
1258 // there's no way to track when the user quits, which would leave a phantom IrcUser lying
1260 // NOTE: Whenever MONITOR support is introduced, the IrcUser will be created by an
1261 // RPL_MONONLINE numeric before any WHO commands are run.
1262 processWhoInformation(e->network(), channel, ircuser, e->params()[4], e->params()[2], e->params()[3], e->params()[6], e->params().last());
1263 // Don't use .section(" ", 1) with WHOX replies, for there's no hopcount to trim out
1265 // As part of IRCv3 account-notify, check account name
1266 // WHOX uses '0' to indicate logged-out, account-notify and extended-join uses '*'.
1267 QString newAccount = e->params()[7];
1268 if (newAccount != "0") {
1269 // Account logged in, set account name
1270 ircuser->setAccount(newAccount);
1273 // Account logged out, set account name to logged-out
1274 ircuser->setAccount("*");
1278 // Check if channel name has a who in progress.
1279 if (coreNetwork(e)->isAutoWhoInProgress(channel)) {
1280 e->setFlag(EventManager::Silent);
1284 void CoreSessionEventProcessor::processWhoInformation(Network* net,
1285 const QString& targetChannel,
1287 const QString& server,
1288 const QString& user,
1289 const QString& host,
1290 const QString& awayStateAndModes,
1291 const QString& realname)
1293 ircUser->setUser(user);
1294 ircUser->setHost(host);
1295 ircUser->setServer(server);
1296 ircUser->setRealName(realname);
1298 bool away = awayStateAndModes.contains("G", Qt::CaseInsensitive);
1299 ircUser->setAway(away);
1301 if (net->capEnabled(IrcCap::MULTI_PREFIX)) {
1302 // If multi-prefix is enabled, all modes will be sent in WHO replies.
1303 // :kenny.chatspike.net 352 guest #test grawity broken.symlink *.chatspike.net grawity H@%+ :0 Mantas M.
1304 // See: http://ircv3.net/specs/extensions/multi-prefix-3.1.html
1305 QString uncheckedModes = awayStateAndModes;
1306 QString validModes = QString();
1307 while (!uncheckedModes.isEmpty()) {
1308 // Mode found in 1 left-most character, add it to the list
1309 if (net->prefixes().contains(uncheckedModes[0])) {
1310 validModes.append(net->prefixToMode(uncheckedModes[0]));
1312 // Remove this mode from the list of unchecked modes
1313 uncheckedModes = uncheckedModes.remove(0, 1);
1316 // Some IRC servers decide to not follow the spec, returning only -some- of the user
1317 // modes in WHO despite listing them all in NAMES. For now, assume it can only add
1318 // and not take away. *sigh*
1319 if (!validModes.isEmpty()) {
1320 if (targetChannel != "*") {
1321 // Channel-specific modes received, apply to given channel only
1322 IrcChannel* ircChan = net->ircChannel(targetChannel);
1324 // Do one mode at a time
1325 // TODO Better way of syncing this without breaking protocol?
1326 for (int i = 0; i < validModes.count(); ++i) {
1327 ircChan->addUserMode(ircUser, validModes.at(i));
1332 // Modes apply to the user everywhere
1333 ircUser->addUserModes(validModes);
1339 /* ERR_NOSUCHCHANNEL - "<channel name> :No such channel" */
1340 void CoreSessionEventProcessor::processIrcEvent403(IrcEventNumeric* e)
1342 // If this is the result of an AutoWho, hide it. It's confusing to show to the user.
1343 // Though the ":No such channel" remark should always be there, we should handle cases when it's
1344 // not included, too.
1345 if (!checkParamCount(e, 1))
1348 QString channelOrNick = e->params()[0];
1349 // Check if channel name has a who in progress.
1350 // If not, then check if user nick exists and has a who in progress.
1351 if (coreNetwork(e)->isAutoWhoInProgress(channelOrNick)) {
1352 qDebug() << "Channel/nick" << channelOrNick << "no longer exists during AutoWho, ignoring";
1353 e->setFlag(EventManager::Silent);
1357 /* ERR_ERRONEUSNICKNAME */
1358 void CoreSessionEventProcessor::processIrcEvent432(IrcEventNumeric* e)
1360 if (!checkParamCount(e, 1))
1364 if (e->params().count() < 2) {
1365 // handle unreal-ircd bug, where unreal ircd doesnt supply a TARGET in ERR_ERRONEUSNICKNAME during registration phase:
1367 // :irc.scortum.moep.net 432 @@@ :Erroneous Nickname: Illegal characters
1368 // correct server reply:
1369 // :irc.scortum.moep.net 432 * @@@ :Erroneous Nickname: Illegal characters
1370 e->params().prepend(e->target());
1373 errnick = e->params()[0];
1375 tryNextNick(e, errnick, true /* erroneus */);
1378 /* ERR_NICKNAMEINUSE */
1379 void CoreSessionEventProcessor::processIrcEvent433(IrcEventNumeric* e)
1381 if (!checkParamCount(e, 1))
1384 QString errnick = e->params().first();
1386 // if there is a problem while connecting to the server -> we handle it
1387 // but only if our connection has not been finished yet...
1388 if (!e->network()->currentServer().isEmpty())
1391 tryNextNick(e, errnick);
1394 /* ERR_UNAVAILRESOURCE */
1395 void CoreSessionEventProcessor::processIrcEvent437(IrcEventNumeric* e)
1397 if (!checkParamCount(e, 1))
1400 QString errnick = e->params().first();
1402 // if there is a problem while connecting to the server -> we handle it
1403 // but only if our connection has not been finished yet...
1404 if (!e->network()->currentServer().isEmpty())
1407 if (!e->network()->isChannelName(errnick))
1408 tryNextNick(e, errnick);
1412 void CoreSessionEventProcessor::processIrcEvent(IrcEvent *e) {
1413 if(!checkParamCount(e, 1))
1419 /* Handle signals from Netsplit objects */
1421 void CoreSessionEventProcessor::handleNetsplitJoin(
1422 Network* net, const QString& channel, const QStringList& users, const QStringList& modes, const QString& quitMessage)
1424 IrcChannel* ircChannel = net->ircChannel(channel);
1428 QList<IrcUser*> ircUsers;
1429 QStringList newModes = modes;
1430 QStringList newUsers = users;
1432 for (const QString& user : users) {
1433 IrcUser* iu = net->ircUser(nickFromMask(user));
1435 ircUsers.append(iu);
1436 else { // the user already quit
1437 int idx = users.indexOf(user);
1438 newUsers.removeAt(idx);
1439 newModes.removeAt(idx);
1443 ircChannel->joinIrcUsers(ircUsers, newModes);
1444 NetworkSplitEvent* event = new NetworkSplitEvent(EventManager::NetworkSplitJoin, net, channel, newUsers, quitMessage);
1445 emit newEvent(event);
1448 void CoreSessionEventProcessor::handleNetsplitQuit(Network* net, const QString& channel, const QStringList& users, const QString& quitMessage)
1450 NetworkSplitEvent* event = new NetworkSplitEvent(EventManager::NetworkSplitQuit, net, channel, users, quitMessage);
1451 emit newEvent(event);
1452 for (const QString& user : users) {
1453 IrcUser* ircUser = net->ircUser(nickFromMask(user));
1454 if (ircUser) ircUser->quit();
1458 void CoreSessionEventProcessor::handleEarlyNetsplitJoin(Network* net, const QString& channel, const QStringList& users, const QStringList& modes)
1460 IrcChannel* ircChannel = net->ircChannel(channel);
1462 qDebug() << "handleEarlyNetsplitJoin(): channel " << channel << " invalid";
1465 QList<NetworkEvent*> events;
1466 QList<IrcUser*> ircUsers;
1467 QStringList newModes = modes;
1469 for (const QString& user : users) {
1470 IrcUser* ircUser = net->updateNickFromMask(user);
1472 ircUsers.append(ircUser);
1473 // fake event for scripts that consume join events
1474 events << new IrcEvent(EventManager::IrcEventJoin, net, {}, ircUser->hostmask(), QStringList() << channel);
1477 newModes.removeAt(users.indexOf(user));
1480 ircChannel->joinIrcUsers(ircUsers, newModes);
1481 for (NetworkEvent* event : events) {
1482 event->setFlag(EventManager::Fake); // ignore this in here!
1483 emit newEvent(event);
1487 void CoreSessionEventProcessor::handleNetsplitFinished()
1489 auto* n = qobject_cast<Netsplit*>(sender());
1491 QHash<QString, Netsplit*> splithash = _netsplits.take(n->network());
1492 splithash.remove(splithash.key(n));
1493 if (splithash.count())
1494 _netsplits[n->network()] = splithash;
1498 void CoreSessionEventProcessor::destroyNetsplits(NetworkId netId)
1500 Network* net = coreSession()->network(netId);
1504 QHash<QString, Netsplit*> splits = _netsplits.take(net);
1508 /*******************************/
1509 /******** CTCP HANDLING ********/
1510 /*******************************/
1512 void CoreSessionEventProcessor::processCtcpEvent(CtcpEvent* e)
1514 if (e->testFlag(EventManager::Self))
1515 return; // ignore ctcp events generated by user input
1517 if (e->type() != EventManager::CtcpEvent || e->ctcpType() != CtcpEvent::Query)
1520 handle(e->ctcpCmd(), Q_ARG(CtcpEvent*, e));
1523 void CoreSessionEventProcessor::defaultHandler(const QString& ctcpCmd, CtcpEvent* e)
1525 // This handler is only there to avoid warnings for unknown CTCPs
1530 void CoreSessionEventProcessor::handleCtcpAction(CtcpEvent* e)
1532 // This handler is only there to feed CLIENTINFO
1536 void CoreSessionEventProcessor::handleCtcpClientinfo(CtcpEvent* e)
1538 QStringList supportedHandlers;
1539 for (const QString& handler : providesHandlers())
1540 supportedHandlers << handler.toUpper();
1541 std::sort(supportedHandlers.begin(), supportedHandlers.end());
1542 e->setReply(supportedHandlers.join(" "));
1545 // http://www.irchelp.org/irchelp/rfc/ctcpspec.html
1546 // http://en.wikipedia.org/wiki/Direct_Client-to-Client
1547 void CoreSessionEventProcessor::handleCtcpDcc(CtcpEvent* e)
1549 // DCC support is unfinished, experimental and potentially dangerous, so make it opt-in
1550 if (!Quassel::isOptionSet("enable-experimental-dcc")) {
1551 qInfo() << "DCC disabled, start core with --enable-experimental-dcc if you really want to try it out";
1555 // normal: SEND <filename> <ip> <port> [<filesize>]
1556 // reverse: SEND <filename> <ip> 0 <filesize> <token>
1557 QStringList params = e->param().split(' ');
1558 if (params.count()) {
1559 QString cmd = params[0].toUpper();
1560 if (cmd == "SEND") {
1561 if (params.count() < 4) {
1562 qWarning() << "Invalid DCC SEND request:" << e; // TODO emit proper error to client
1565 QString filename = params[1];
1566 QHostAddress address;
1567 quint16 port = params[3].toUShort();
1569 QString numIp = params[2]; // this is either IPv4 as a 32 bit value, or IPv6 (which always contains a colon)
1570 if (numIp.contains(':')) { // IPv6
1571 if (!address.setAddress(numIp)) {
1572 qWarning() << "Invalid IPv6:" << numIp;
1577 address.setAddress(numIp.toUInt());
1580 if (port == 0) { // Reverse DCC is indicated by a 0 port
1581 emit newEvent(new MessageEvent(Message::Error,
1583 tr("Reverse DCC SEND not supported"),
1591 qWarning() << "Privileged port requested:" << port; // FIXME ask user if this is ok
1594 if (params.count() > 4) { // filesize is optional
1595 size = params[4].toULong();
1598 // TODO: check if target is the right thing to use for the partner
1599 CoreTransfer* transfer = new CoreTransfer(Transfer::Direction::Receive, e->target(), filename, address, port, size, this);
1600 coreSession()->signalProxy()->synchronize(transfer);
1601 coreSession()->transferManager()->addTransfer(transfer);
1604 emit newEvent(new MessageEvent(Message::Error,
1606 tr("DCC %1 not supported").arg(cmd),
1616 void CoreSessionEventProcessor::handleCtcpPing(CtcpEvent* e)
1618 e->setReply(e->param().isNull() ? "" : e->param());
1621 void CoreSessionEventProcessor::handleCtcpTime(CtcpEvent* e)
1623 // Use the ISO standard to avoid locale-specific translated names
1624 // Include timezone offset data to show which timezone a user's in, otherwise we're providing
1625 // NTP-over-IRC with terrible accuracy.
1626 e->setReply(formatDateTimeToOffsetISO(QDateTime::currentDateTime()));
1629 void CoreSessionEventProcessor::handleCtcpVersion(CtcpEvent* e)
1631 // Deliberately do not translate project name
1632 // Use the ISO standard to avoid locale-specific translated names
1633 // Use UTC time to provide a consistent string regardless of timezone
1634 // (Statistics tracking tools usually only group client versions by exact string matching)
1635 e->setReply(QString("Quassel IRC %1 (version date %2) -- https://www.quassel-irc.org")
1636 .arg(Quassel::buildInfo().plainVersionString)
1637 .arg(Quassel::buildInfo().commitDate.isEmpty()
1639 : tryFormatUnixEpoch(Quassel::buildInfo().commitDate, Qt::DateFormat::ISODate, true)));