1 /***************************************************************************
2 * Copyright (C) 2005-2020 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);
137 if (net->identityPtr()->sslCert().isNull()) {
138 QString construct = net->saslAccount();
139 construct.append(QChar(QChar::Null));
140 construct.append(net->saslAccount());
141 construct.append(QChar(QChar::Null));
142 construct.append(net->saslPassword());
143 QByteArray saslData = QByteArray(construct.toLatin1().toBase64());
144 saslData.prepend("AUTHENTICATE ");
145 net->putRawLine(saslData);
148 net->putRawLine("AUTHENTICATE +");
152 void CoreSessionEventProcessor::processIrcEventCap(IrcEvent* e)
154 // Handle capability negotiation
155 // See: http://ircv3.net/specs/core/capability-negotiation-3.2.html
156 // And: http://ircv3.net/specs/core/capability-negotiation-3.1.html
158 // All commands require at least 2 parameters
159 if (!checkParamCount(e, 2))
162 CoreNetwork* coreNet = coreNetwork(e);
163 QString capCommand = e->params().at(1).trimmed().toUpper();
164 if (capCommand == "LS" || capCommand == "NEW") {
165 // Either we've gotten a list of capabilities, or new capabilities we may want
166 // Server: CAP * LS * :multi-prefix extended-join account-notify batch invite-notify tls
167 // Server: CAP * LS * :cap-notify server-time example.org/dummy-cap=dummyvalue example.org/second-dummy-cap
168 // Server: CAP * LS :userhost-in-names sasl=EXTERNAL,DH-AES,DH-BLOWFISH,ECDSA-NIST256P-CHALLENGE,PLAIN
169 bool capListFinished;
170 QStringList availableCaps;
171 if (e->params().count() == 4) {
172 // Middle of multi-line reply, ignore the asterisk
173 capListFinished = false;
174 availableCaps = e->params().at(3).split(' ');
178 capListFinished = true;
179 if (e->params().count() >= 3) {
180 // Some capabilities are specified, add them
181 availableCaps = e->params().at(2).split(' ');
184 // No capabilities available, add an empty list
185 availableCaps = QStringList();
188 // Sort capabilities before requesting for consistency among networks. This may avoid
189 // unexpected cases when some networks offer capabilities in a different order than
190 // others. It also looks nicer in logs. Not required.
191 availableCaps.sort();
192 // Store what capabilities are available
193 QString availableCapName, availableCapValue;
194 for (int i = 0; i < availableCaps.count(); ++i) {
195 // Capability may include values, e.g. CAP * LS :multi-prefix sasl=EXTERNAL
196 // Capability name comes before the first '='. If no '=' exists, this gets the
197 // whole string instead.
198 availableCapName = availableCaps[i].section('=', 0, 0).trimmed();
199 // Some capabilities include multiple key=value pairs in the listing,
200 // e.g. "sts=duration=31536000,port=6697"
201 // Include everything after the first equal sign as part of the value. If no '='
202 // exists, this gets an empty string.
203 availableCapValue = availableCaps[i].section('=', 1).trimmed();
204 // Only add the capability if it's non-empty
205 if (!availableCapName.isEmpty()) {
206 coreNet->addCap(availableCapName, availableCapValue);
210 // Begin capability requests when capability listing complete
212 coreNet->beginCapNegotiation();
214 else if (capCommand == "ACK") {
215 // CAP ACK requires at least 3 parameters (no empty response allowed)
216 if (!checkParamCount(e, 3)) {
217 // If an invalid reply is sent, try to continue rather than getting stuck.
218 coreNet->sendNextCap();
222 // Server: CAP * ACK :multi-prefix sasl
223 // Got the capabilities we want, handle as needed.
224 QStringList acceptedCaps;
225 acceptedCaps = e->params().at(2).split(' ');
227 // Store what capability was acknowledged
230 // Keep track of whether or not a capability requires further configuration. Due to queuing
231 // logic in CoreNetwork::queueCap(), this shouldn't ever happen when more than one
232 // capability is requested, but it's better to handle edge cases or faulty servers.
233 bool capsRequireConfiguration = false;
235 for (int i = 0; i < acceptedCaps.count(); ++i) {
236 acceptedCap = acceptedCaps[i].trimmed().toLower();
237 // Mark this cap as accepted
238 coreNet->acknowledgeCap(acceptedCap);
239 if (!capsRequireConfiguration && coreNet->capsRequiringConfiguration.contains(acceptedCap)) {
240 capsRequireConfiguration = true;
241 // Some capabilities (e.g. SASL) require further messages to finish. If so, do NOT
242 // send the next capability; it will be handled elsewhere in CoreNetwork.
243 // Otherwise, allow moving on to the next capability.
247 if (!capsRequireConfiguration) {
248 // No additional configuration required, move on to the next capability
249 coreNet->sendNextCap();
252 else if (capCommand == "NAK" || capCommand == "DEL") {
253 // CAP NAK/DEL require at least 3 parameters (no empty response allowed)
254 if (!checkParamCount(e, 3)) {
255 if (capCommand == "NAK") {
256 // If an invalid reply is sent, try to continue rather than getting stuck. This
257 // only matters for denied caps, not removed caps.
258 coreNet->sendNextCap();
263 // Either something went wrong with the capabilities, or they are no longer supported
265 // Server: CAP * NAK :multi-prefix sasl
267 // Server: :irc.example.com CAP modernclient DEL :multi-prefix sasl
268 // CAP NAK and CAP DEL replies are always single-line
270 QStringList removedCaps;
271 removedCaps = e->params().at(2).split(' ');
273 // Store the capabilities that were denied or removed
275 for (int i = 0; i < removedCaps.count(); ++i) {
276 removedCap = removedCaps[i].trimmed().toLower();
277 // Mark this cap as removed.
278 // For CAP DEL, removes it from use.
279 // For CAP NAK when received before negotiation enabled these capabilities, removeCap()
280 // should do nothing. This merely guards against non-spec servers sending an
281 // unsolicited CAP ACK then later removing that capability.
282 coreNet->removeCap(removedCap);
285 if (capCommand == "NAK") {
286 // Continue negotiation only if this is the result of denied caps, not removed caps
287 if (removedCaps.count() > 1) {
288 // We've received a CAP NAK reply to multiple capabilities at once. Unfortunately,
289 // we don't know which capability failed and which ones are valid to re-request, so
290 // individually retry each capability from the failed bundle.
291 // See CoreNetwork::retryCapsIndividually() for more details.
292 coreNet->retryCapsIndividually();
293 // Still need to call sendNextCap() to carry on.
295 // Carry on with negotiation
296 coreNet->sendNextCap();
301 /* IRCv3 account-notify
302 * Log in: ":nick!user@host ACCOUNT accountname"
303 * Log out: ":nick!user@host ACCOUNT *" */
304 void CoreSessionEventProcessor::processIrcEventAccount(IrcEvent* e)
306 if (!checkParamCount(e, 1))
309 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
311 // WHOX uses '0' to indicate logged-out, account-notify and extended-join uses '*'.
312 // As '*' is used internally to represent logged-out, no need to handle that differently.
313 ircuser->setAccount(e->params().at(0));
316 qDebug() << "Received account-notify data for unknown user" << e->prefix();
320 /* IRCv3 away-notify - ":nick!user@host AWAY [:message]" */
321 void CoreSessionEventProcessor::processIrcEventAway(IrcEvent* e)
323 if (!checkParamCount(e, 1))
325 // Don't use checkParamCount(e, 2) since the message is optional. Some servers respond in a way
326 // that it counts as two parameters, but we shouldn't rely on that.
328 // Nick is sent as part of parameters in order to split user/server decoding
329 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
331 // If two parameters are sent -and- the second parameter isn't empty, then user is away.
332 // Otherwise, mark them as not away.
333 if (e->params().count() >= 2 && !e->params().at(1).isEmpty()) {
334 ircuser->setAway(true);
335 ircuser->setAwayMessage(e->params().at(1));
338 ircuser->setAway(false);
342 qDebug() << "Received away-notify data for unknown user" << e->params().at(0);
346 /* IRCv3 chghost - ":nick!user@host CHGHOST newuser new.host.goes.here" */
347 void CoreSessionEventProcessor::processIrcEventChghost(IrcEvent* e)
349 if (!checkParamCount(e, 2))
352 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
354 // Update with new user/hostname information. setUser/setHost handles checking what
356 ircuser->setUser(e->params().at(0));
357 ircuser->setHost(e->params().at(1));
360 qDebug() << "Received chghost data for unknown user" << e->prefix();
364 void CoreSessionEventProcessor::processIrcEventInvite(IrcEvent* e)
366 if (checkParamCount(e, 2)) {
367 e->network()->updateNickFromMask(e->prefix());
371 /* JOIN: ":<nick!user@host> JOIN <channel>" */
372 void CoreSessionEventProcessor::processIrcEventJoin(IrcEvent* e)
374 if (e->testFlag(EventManager::Fake)) // generated by handleEarlyNetsplitJoin
377 if (!checkParamCount(e, 1))
380 CoreNetwork* net = coreNetwork(e);
381 QString channel = e->params()[0];
382 IrcUser* ircuser = net->updateNickFromMask(e->prefix());
384 if (net->capEnabled(IrcCap::EXTENDED_JOIN)) {
385 if (e->params().count() < 3) {
386 // Some IRC servers don't send extended-join events in all situations. Rather than
387 // ignore the join entirely, treat it as a regular join with a debug-level log entry.
388 // See: https://github.com/inspircd/inspircd/issues/821
389 qDebug() << "extended-join requires 3 params, got:" << e->params()
390 << ", handling as a "
394 // If logged in, :nick!user@host JOIN #channelname accountname :Real Name
395 // If logged out, :nick!user@host JOIN #channelname * :Real Name
396 // See: http://ircv3.net/specs/extensions/extended-join-3.1.html
397 // WHOX uses '0' to indicate logged-out, account-notify and extended-join uses '*'.
398 // As '*' is used internally to represent logged-out, no need to handle that differently.
399 ircuser->setAccount(e->params()[1]);
400 // Update the user's real name, too
401 ircuser->setRealName(e->params()[2]);
404 // Else :nick!user@host JOIN #channelname
406 bool handledByNetsplit = false;
407 for (Netsplit* n : _netsplits.value(e->network())) {
408 handledByNetsplit = n->userJoined(e->prefix(), channel);
409 if (handledByNetsplit)
413 // With "away-notify" enabled, some IRC servers forget to send :away messages for users who join
414 // channels while away. Unfortunately, working around this involves WHO'ng every single user as
415 // they join, which is not very efficient. If at all possible, it's better to get the issue
416 // fixed in the IRC server instead.
418 // If pursuing a workaround instead, this is where you'd do it. Check the version control
419 // history for the commit that added this comment to see how to implement it - there's some
420 // unexpected situations to watch out for!
422 // See https://ircv3.net/specs/extensions/away-notify-3.1.html
424 if (!handledByNetsplit)
425 ircuser->joinChannel(channel);
427 e->setFlag(EventManager::Netsplit);
429 if (net->isMe(ircuser)) {
430 net->setChannelJoined(channel);
431 // Mark the message as Self
432 e->setFlag(EventManager::Self);
434 net->putRawLine(net->serverEncode("MODE " + channel)); // we want to know the modes of the channel we just joined, so we ask politely
438 void CoreSessionEventProcessor::lateProcessIrcEventKick(IrcEvent* e)
440 if (checkParamCount(e, 2)) {
441 e->network()->updateNickFromMask(e->prefix());
442 IrcUser* victim = e->network()->ircUser(e->params().at(1));
444 victim->partChannel(e->params().at(0));
445 // if(e->network()->isMe(victim)) e->network()->setKickedFromChannel(channel);
450 void CoreSessionEventProcessor::processIrcEventMode(IrcEvent* e)
452 if (!checkParamCount(e, 2))
455 if (e->network()->isChannelName(e->params().first())) {
458 IrcChannel* channel = e->network()->ircChannel(e->params()[0]);
460 // we received mode information for a channel we're not in. that means probably we've just been kicked out or something like
461 // that anyways: we don't have a place to store the data --> discard the info.
465 QString modes = e->params()[1];
468 for (auto mode : modes) {
478 if (e->network()->prefixModes().contains(mode)) {
479 // user channel modes (op, voice, etc...)
480 if (paramOffset < e->params().count()) {
481 IrcUser* ircUser = e->network()->ircUser(e->params()[paramOffset]);
483 qWarning() << Q_FUNC_INFO << "Unknown IrcUser:" << e->params()[paramOffset];
487 bool handledByNetsplit = false;
488 QHash<QString, Netsplit*> splits = _netsplits.value(e->network());
489 for (Netsplit* n : _netsplits.value(e->network())) {
490 handledByNetsplit = n->userAlreadyJoined(ircUser->hostmask(), channel->name());
491 if (handledByNetsplit) {
492 n->addMode(ircUser->hostmask(), channel->name(), QString(mode));
496 if (!handledByNetsplit)
497 channel->addUserMode(ircUser, QString(mode));
500 channel->removeUserMode(ircUser, QString(mode));
504 qWarning() << "Received MODE with too few parameters:" << e->params();
509 // regular channel modes
511 Network::ChannelModeType modeType = e->network()->channelModeType(mode);
512 if (modeType == Network::A_CHANMODE || modeType == Network::B_CHANMODE || (modeType == Network::C_CHANMODE && add)) {
513 if (paramOffset < e->params().count()) {
514 value = e->params()[paramOffset];
517 qWarning() << "Received MODE with too few parameters:" << e->params();
523 channel->addChannelMode(mode, value);
525 channel->removeChannelMode(mode, value);
531 IrcUser* ircUser = e->network()->newIrcUser(e->params().first());
532 QString modeString(e->params()[1]);
536 for (int c = 0; c < modeString.count(); c++) {
537 if (modeString[c] == '+') {
541 if (modeString[c] == '-') {
546 addModes += modeString[c];
548 removeModes += modeString[c];
550 if (!addModes.isEmpty())
551 ircUser->addUserModes(addModes);
552 if (!removeModes.isEmpty())
553 ircUser->removeUserModes(removeModes);
555 if (e->network()->isMe(ircUser)) {
556 // Mark the message as Self
557 e->setFlag(EventManager::Self);
558 coreNetwork(e)->updatePersistentModes(addModes, removeModes);
563 void CoreSessionEventProcessor::processIrcEventNick(IrcEvent* e)
565 if (checkParamCount(e, 1)) {
566 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
568 qWarning() << Q_FUNC_INFO << "Unknown IrcUser!";
572 if (e->network()->isMe(ircuser)) {
573 // Mark the message as Self
574 e->setFlag(EventManager::Self);
577 // Actual processing is handled in lateProcessIrcEventNick(), this just sets the event flag
581 void CoreSessionEventProcessor::lateProcessIrcEventNick(IrcEvent* e)
583 if (checkParamCount(e, 1)) {
584 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
586 qWarning() << Q_FUNC_INFO << "Unknown IrcUser!";
589 QString newnick = e->params().at(0);
590 QString oldnick = ircuser->nick();
592 // the order is cruicial
593 // otherwise the client would rename the buffer, see that the assigned ircuser doesn't match anymore
594 // and remove the ircuser from the querybuffer leading to a wrong on/offline state
595 ircuser->setNick(newnick);
596 coreSession()->renameBuffer(e->networkId(), newnick, oldnick);
600 void CoreSessionEventProcessor::processIrcEventPart(IrcEvent* e)
602 if (checkParamCount(e, 1)) {
603 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
605 qWarning() << Q_FUNC_INFO << "Unknown IrcUser!";
609 if (e->network()->isMe(ircuser)) {
610 // Mark the message as Self
611 e->setFlag(EventManager::Self);
614 // Actual processing is handled in lateProcessIrcEventNick(), this just sets the event flag
618 void CoreSessionEventProcessor::lateProcessIrcEventPart(IrcEvent* e)
620 if (checkParamCount(e, 1)) {
621 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
623 qWarning() << Q_FUNC_INFO << "Unknown IrcUser!";
626 QString channel = e->params().at(0);
627 ircuser->partChannel(channel);
628 if (e->network()->isMe(ircuser)) {
629 qobject_cast<CoreNetwork*>(e->network())->setChannelParted(channel);
634 void CoreSessionEventProcessor::processIrcEventPing(IrcEvent* e)
636 QString param = e->params().count() ? e->params().first() : QString();
638 // Take priority so this won't get stuck behind other queued messages.
639 coreNetwork(e)->putRawLine("PONG " + coreNetwork(e)->serverEncode(param), true);
642 void CoreSessionEventProcessor::processIrcEventPong(IrcEvent* e)
644 // Ensure we get at least one parameter
645 if (!checkParamCount(e, 1))
648 // Some IRC servers respond with only one parameter, others respond with two, with the latter
649 // being the text sent. Handle both situations.
651 if (e->params().count() < 2) {
652 // Only one parameter received
653 // :localhost PONG 02:43:49.565
654 timestamp = e->params().at(0);
657 // Two parameters received, pick the second
658 // :localhost PONG localhost :02:43:49.565
659 timestamp = e->params().at(1);
662 // The server is supposed to send back what we passed as parameter, and we send a timestamp.
663 // However, using quote and whatnot, one can send arbitrary pings, and IRC servers may decide to
664 // ignore our requests entirely and send whatever they want, so we have to do some sanity
667 // Attempt to parse the timestamp
668 QTime sendTime = QTime::fromString(timestamp, "hh:mm:ss.zzz");
669 if (sendTime.isValid()) {
670 // Mark IRC server as sending valid ping replies
671 if (!coreNetwork(e)->isPongTimestampValid()) {
672 coreNetwork(e)->setPongTimestampValid(true);
673 // Add a message the first time it happens
674 qDebug().nospace() << "Received PONG with valid timestamp, marking pong replies on "
676 << "\"" << qPrintable(e->network()->networkName())
677 << "\" (ID: " << qPrintable(QString::number(e->network()->networkId().toInt()))
678 << ") as usable for latency measurement";
680 // Remove pending flag
681 coreNetwork(e)->resetPongReplyPending();
683 // Don't show this in the UI
684 e->setFlag(EventManager::Silent);
685 // TODO: To allow for a user-sent /ping (without arguments, so default timestamp is used),
686 // this could track how many automated PINGs have been sent by the core and subtract one
687 // each time, only marking the PING as silent if there's pending automated pong replies.
688 // However, that's a behavior change which warrants further testing. For now, take the
689 // simpler, previous approach that errs on the side of silencing too much.
691 // Calculate latency from time difference, divided by 2 to account for round-trip time
692 e->network()->setLatency(sendTime.msecsTo(QTime::currentTime()) / 2);
694 else if (coreNetwork(e)->isPongReplyPending() && !coreNetwork(e)->isPongTimestampValid()) {
695 // There's an auto-PING reply pending and we've not yet received a PONG reply with a valid
696 // timestamp. It's possible this server will never respond with a valid timestamp, and thus
697 // any automated PINGs will result in unwanted spamming of the server buffer.
699 // Don't show this in the UI
700 e->setFlag(EventManager::Silent);
701 // Remove pending flag
702 coreNetwork(e)->resetPongReplyPending();
705 qDebug().nospace() << "Received PONG with invalid timestamp from network "
706 << "\"" << qPrintable(e->network()->networkName())
707 << "\" (ID: " << qPrintable(QString::number(e->network()->networkId().toInt()))
708 << "), silencing, parameters are " << e->params();
710 // else: We're not expecting a PONG reply and timestamp is not valid, assume it's from the user
713 void CoreSessionEventProcessor::processIrcEventQuit(IrcEvent* e)
715 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
719 if (e->network()->isMe(ircuser)) {
720 // Mark the message as Self
721 e->setFlag(EventManager::Self);
725 if (e->params().count() > 0)
726 msg = e->params()[0];
729 if (Netsplit::isNetsplit(msg)) {
731 if (!_netsplits[e->network()].contains(msg)) {
732 n = new Netsplit(e->network(), this);
733 connect(n, &Netsplit::finished, this, &CoreSessionEventProcessor::handleNetsplitFinished);
734 connect(n, &Netsplit::netsplitJoin, this, &CoreSessionEventProcessor::handleNetsplitJoin);
735 connect(n, &Netsplit::netsplitQuit, this, &CoreSessionEventProcessor::handleNetsplitQuit);
736 connect(n, &Netsplit::earlyJoin, this, &CoreSessionEventProcessor::handleEarlyNetsplitJoin);
737 _netsplits[e->network()].insert(msg, n);
740 n = _netsplits[e->network()][msg];
742 // add this user to the netsplit
743 n->userQuit(e->prefix(), ircuser->channels(), msg);
744 e->setFlag(EventManager::Netsplit);
746 // normal quit is handled in lateProcessIrcEventQuit()
749 void CoreSessionEventProcessor::lateProcessIrcEventQuit(IrcEvent* e)
751 if (e->testFlag(EventManager::Netsplit))
754 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
761 void CoreSessionEventProcessor::processIrcEventTopic(IrcEvent* e)
763 if (checkParamCount(e, 2)) {
764 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
766 if (e->network()->isMe(ircuser)) {
767 // Mark the message as Self
768 e->setFlag(EventManager::Self);
771 IrcChannel* channel = e->network()->ircChannel(e->params().at(0));
773 channel->setTopic(e->params().at(1));
777 /* ERROR - "ERROR :reason"
778 Example: ERROR :Closing Link: nickname[xxx.xxx.xxx.xxx] (Large base64 image paste.)
779 See https://tools.ietf.org/html/rfc2812#section-3.7.4 */
780 void CoreSessionEventProcessor::processIrcEventError(IrcEvent* e)
782 if (!checkParamCount(e, 1))
785 if (coreNetwork(e)->disconnectExpected()) {
786 // During QUIT, the server should send an error (often, but not always, "Closing Link"). As
787 // we're expecting it, don't show this to the user.
788 e->setFlag(EventManager::Silent);
793 // IRCv3 SETNAME - ":nick!user@host SETNAME :realname goes here"
794 // Example: :batman!~batman@bat.cave SETNAME :Bruce Wayne <bruce@wayne.enterprises>
796 // See https://ircv3.net/specs/extensions/setname
797 void CoreSessionEventProcessor::processIrcEventSetname(IrcEvent* e)
799 if (checkParamCount(e, 1)) {
800 IrcUser* ircuser = e->network()->updateNickFromMask(e->prefix());
802 qWarning() << Q_FUNC_INFO << "Unknown IrcUser!";
806 QString newname = e->params().at(0);
807 ircuser->setRealName(newname);
812 void CoreSessionEventProcessor::processKeyEvent(KeyEvent* e)
814 if (!Cipher::neededFeaturesAvailable()) {
815 emit newEvent(new MessageEvent(Message::Error,
817 tr("Unable to perform key exchange, missing qca-ossl plugin."),
824 auto* net = qobject_cast<CoreNetwork*>(e->network());
825 Cipher* c = net->cipher(e->target());
826 if (!c) // happens when there is no CoreIrcChannel for the target (i.e. never?)
829 if (e->exchangeType() == KeyEvent::Init) {
830 QByteArray pubKey = c->parseInitKeyX(e->key());
831 if (pubKey.isEmpty()) {
832 emit newEvent(new MessageEvent(Message::Error,
834 tr("Unable to parse the DH1080_INIT. Key exchange failed."),
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."),
851 p << net->serverEncode(e->target()) << net->serverEncode("DH1080_FINISH ") + pubKey;
852 net->putCmd("NOTICE", p);
856 if (c->parseFinishKeyX(e->key())) {
857 net->setCipherKey(e->target(), c->key());
858 emit newEvent(new MessageEvent(Message::Info,
860 tr("Your key is set and messages will be encrypted."),
867 emit newEvent(new MessageEvent(Message::Info,
869 tr("Failed to parse DH1080_FINISH. Key exchange failed."),
880 void CoreSessionEventProcessor::processIrcEvent001(IrcEventNumeric* e)
882 e->network()->setCurrentServer(e->prefix());
883 e->network()->setMyNick(e->target());
887 // TODO Complete 005 handling, also use sensible defaults for non-sent stuff
888 void CoreSessionEventProcessor::processIrcEvent005(IrcEvent* e)
890 if (!checkParamCount(e, 1))
894 for (int i = 0; i < e->params().count() - 1; i++) {
895 QString key = e->params()[i].section("=", 0, 0);
896 QString value = e->params()[i].section("=", 1);
897 e->network()->addSupport(key, value);
900 /* determine our prefixes here to get an accurate result */
901 e->network()->determinePrefixes();
904 /* RPL_UMODEIS - "<user_modes> [<user_mode_params>]" */
905 void CoreSessionEventProcessor::processIrcEvent221(IrcEvent*)
907 // TODO: save information in network object
910 /* RPL_STATSCONN - "Highest connection cout: 8000 (7999 clients)" */
911 void CoreSessionEventProcessor::processIrcEvent250(IrcEvent*)
913 // TODO: save information in network object
916 /* RPL_LOCALUSERS - "Current local user: 5024 Max: 7999 */
917 void CoreSessionEventProcessor::processIrcEvent265(IrcEvent*)
919 // TODO: save information in network object
922 /* RPL_GLOBALUSERS - "Current global users: 46093 Max: 47650" */
923 void CoreSessionEventProcessor::processIrcEvent266(IrcEvent*)
925 // TODO: save information in network object
930 Replies 311 - 313, 317 - 319 are all replies generated in response to a WHOIS message.
932 "<nick> :<away message>"
934 Replies 352 and 315 paired are used to answer a WHO message.
937 Replies 314 and 369 are responses to a WHOWAS message.
941 /* RPL_AWAY - "<nick> :<away message>" */
942 void CoreSessionEventProcessor::processIrcEvent301(IrcEvent* e)
944 if (!checkParamCount(e, 2))
947 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
949 ircuser->setAway(true);
950 ircuser->setAwayMessage(e->params().at(1));
951 // lastAwayMessageTime is set in EventStringifier::processIrcEvent301(), no need to set it
953 // ircuser->setLastAwayMessageTime(now);
957 /* RPL_UNAWAY - ":You are no longer marked as being away" */
958 void CoreSessionEventProcessor::processIrcEvent305(IrcEvent* e)
960 IrcUser* me = e->network()->me();
964 if (e->network()->autoAwayActive()) {
965 e->network()->setAutoAwayActive(false);
966 e->setFlag(EventManager::Silent);
970 /* RPL_NOWAWAY - ":You have been marked as being away" */
971 void CoreSessionEventProcessor::processIrcEvent306(IrcEvent* e)
973 IrcUser* me = e->network()->me();
978 /* RPL_WHOISSERVICE - "<user> is registered nick" */
979 void CoreSessionEventProcessor::processIrcEvent307(IrcEvent* e)
981 if (!checkParamCount(e, 1))
984 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
986 ircuser->setWhoisServiceReply(e->params().join(" "));
989 /* RPL_SUSERHOST - "<user> is available for help." */
990 void CoreSessionEventProcessor::processIrcEvent310(IrcEvent* e)
992 if (!checkParamCount(e, 1))
995 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
997 ircuser->setSuserHost(e->params().join(" "));
1000 /* RPL_WHOISUSER - "<nick> <user> <host> * :<real name>" */
1001 void CoreSessionEventProcessor::processIrcEvent311(IrcEvent* e)
1003 if (!checkParamCount(e, 3))
1006 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
1008 ircuser->setUser(e->params().at(1));
1009 ircuser->setHost(e->params().at(2));
1010 ircuser->setRealName(e->params().last());
1014 /* RPL_WHOISSERVER - "<nick> <server> :<server info>" */
1015 void CoreSessionEventProcessor::processIrcEvent312(IrcEvent* e)
1017 if (!checkParamCount(e, 2))
1020 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
1022 ircuser->setServer(e->params().at(1));
1025 /* RPL_WHOISOPERATOR - "<nick> :is an IRC operator" */
1026 void CoreSessionEventProcessor::processIrcEvent313(IrcEvent* e)
1028 if (!checkParamCount(e, 1))
1031 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
1033 ircuser->setIrcOperator(e->params().last());
1036 /* RPL_ENDOFWHO: "<name> :End of WHO list" */
1037 void CoreSessionEventProcessor::processIrcEvent315(IrcEvent* e)
1039 if (!checkParamCount(e, 1))
1042 if (coreNetwork(e)->setAutoWhoDone(e->params()[0]))
1043 e->setFlag(EventManager::Silent);
1046 /* RPL_WHOISIDLE - "<nick> <integer> :seconds idle"
1047 (real life: "<nick> <integer> <integer> :seconds idle, signon time) */
1048 void CoreSessionEventProcessor::processIrcEvent317(IrcEvent* e)
1050 if (!checkParamCount(e, 2))
1053 QDateTime loginTime;
1055 int idleSecs = e->params()[1].toInt();
1056 if (e->params().count() > 3) { // if we have more then 3 params we have the above mentioned "real life" situation
1057 // Allow for 64-bit time
1058 qint64 logintime = e->params()[2].toLongLong();
1059 // Time in IRC protocol is defined as seconds. Convert from seconds instead.
1060 // See https://doc.qt.io/qt-5/qdatetime.html#fromSecsSinceEpoch
1061 #if QT_VERSION >= 0x050800
1062 loginTime = QDateTime::fromSecsSinceEpoch(logintime);
1064 // fromSecsSinceEpoch() was added in Qt 5.8. Manually downconvert to seconds for
1066 // See https://doc.qt.io/qt-5/qdatetime.html#fromMSecsSinceEpoch
1067 loginTime = QDateTime::fromMSecsSinceEpoch((qint64)(logintime * 1000));
1071 IrcUser* ircuser = e->network()->ircUser(e->params()[0]);
1073 ircuser->setIdleTime(e->timestamp().addSecs(-idleSecs));
1074 if (loginTime.isValid())
1075 ircuser->setLoginTime(loginTime);
1079 /* RPL_LIST - "<channel> <# visible> :<topic>" */
1080 void CoreSessionEventProcessor::processIrcEvent322(IrcEvent* e)
1082 if (!checkParamCount(e, 1))
1085 QString channelName;
1086 quint32 userCount = 0;
1089 switch (e->params().count()) {
1091 topic = e->params()[2];
1094 userCount = e->params()[1].toUInt();
1097 channelName = e->params()[0];
1102 if (coreSession()->ircListHelper()->addChannel(e->networkId(), channelName, userCount, topic))
1103 e->stop(); // consumed by IrcListHelper, so don't further process/show this event
1106 /* RPL_LISTEND ":End of LIST" */
1107 void CoreSessionEventProcessor::processIrcEvent323(IrcEvent* e)
1109 if (!checkParamCount(e, 1))
1112 if (coreSession()->ircListHelper()->endOfChannelList(e->networkId()))
1113 e->stop(); // consumed by IrcListHelper, so don't further process/show this event
1116 /* RPL_CHANNELMODEIS - "<channel> <mode> <mode params>" */
1117 void CoreSessionEventProcessor::processIrcEvent324(IrcEvent* e)
1119 processIrcEventMode(e);
1122 /* RPL_WHOISACCOUNT - "<nick> <account> :is authed as" */
1123 void CoreSessionEventProcessor::processIrcEvent330(IrcEvent* e)
1125 // Though the ":is authed as" remark should always be there, we should handle cases when it's
1126 // not included, too.
1127 if (!checkParamCount(e, 2))
1130 IrcUser* ircuser = e->network()->ircUser(e->params().at(0));
1132 ircuser->setAccount(e->params().at(1));
1137 void CoreSessionEventProcessor::processIrcEvent331(IrcEvent* e)
1139 if (!checkParamCount(e, 1))
1142 IrcChannel* chan = e->network()->ircChannel(e->params()[0]);
1144 chan->setTopic(QString());
1148 void CoreSessionEventProcessor::processIrcEvent332(IrcEvent* e)
1150 if (!checkParamCount(e, 2))
1153 IrcChannel* chan = e->network()->ircChannel(e->params()[0]);
1155 chan->setTopic(e->params()[1]);
1158 /* RPL_WHOREPLY: "<channel> <user> <host> <server> <nick>
1159 ( "H" / "G" > ["*"] [ ( "@" / "+" ) ] :<hopcount> <real name>" */
1160 void CoreSessionEventProcessor::processIrcEvent352(IrcEvent* e)
1162 if (!checkParamCount(e, 6))
1165 QString channel = e->params()[0];
1166 IrcUser* ircuser = e->network()->ircUser(e->params()[4]);
1168 // Only process the WHO information if an IRC user exists. Don't create an IRC user here;
1169 // there's no way to track when the user quits, which would leave a phantom IrcUser lying
1171 // NOTE: Whenever MONITOR support is introduced, the IrcUser will be created by an
1172 // RPL_MONONLINE numeric before any WHO commands are run.
1173 processWhoInformation(e->network(),
1180 e->params().last().section(" ", 1));
1183 // Check if channel name has a who in progress.
1184 if (coreNetwork(e)->isAutoWhoInProgress(channel)) {
1185 e->setFlag(EventManager::Silent);
1190 void CoreSessionEventProcessor::processIrcEvent353(IrcEvent* e)
1192 if (!checkParamCount(e, 3))
1195 // param[0] is either "=", "*" or "@" indicating a public, private or secret channel
1196 // we don't use this information at the time beeing
1197 QString channelname = e->params()[1];
1199 IrcChannel* channel = e->network()->ircChannel(channelname);
1201 qWarning() << Q_FUNC_INFO << "Received unknown target channel:" << channelname;
1208 // Cache result of multi-prefix to avoid unneeded casts and lookups with each iteration.
1209 bool _useCapMultiPrefix = coreNetwork(e)->capEnabled(IrcCap::MULTI_PREFIX);
1211 for (QString nick : e->params()[2].split(' ', QString::SkipEmptyParts)) {
1214 if (_useCapMultiPrefix) {
1215 // If multi-prefix is enabled, all modes will be sent in NAMES replies.
1216 // :hades.arpa 353 guest = #tethys :~&@%+aji &@Attila @+alyx +KindOne Argure
1217 // See: http://ircv3.net/specs/extensions/multi-prefix-3.1.html
1218 while (e->network()->prefixes().contains(nick[0])) {
1219 // Mode found in 1 left-most character, add it to the list.
1220 // Note: sending multiple modes may cause a warning in older clients.
1221 // In testing, the clients still seemed to function fine.
1222 mode.append(e->network()->prefixToMode(nick[0]));
1223 // Remove this mode from the nick
1224 nick = nick.remove(0, 1);
1227 else if (e->network()->prefixes().contains(nick[0])) {
1228 // Multi-prefix is disabled and a mode prefix was found.
1229 mode = e->network()->prefixToMode(nick[0]);
1233 // If userhost-in-names capability is enabled, the following will be
1234 // in the form "nick!user@host" rather than "nick". This works without
1235 // special handling as the following use nickFromHost() as needed.
1236 // See: http://ircv3.net/specs/extensions/userhost-in-names-3.2.html
1242 channel->joinIrcUsers(nicks, modes);
1245 /* RPL_WHOSPCRPL: "<yournick> 152 #<channel> ~<ident> <host> <servname> <nick>
1246 ("H"/ "G") <account> :<realname>"
1247 <channel> is * if not specific to any channel
1248 <account> is * if not logged in
1249 Follows HexChat's usage of 'whox'
1250 See https://github.com/hexchat/hexchat/blob/c874a9525c9b66f1d5ddcf6c4107d046eba7e2c5/src/common/proto-irc.c#L750
1251 And http://faerion.sourceforge.net/doc/irc/whox.var*/
1252 void CoreSessionEventProcessor::processIrcEvent354(IrcEvent* e)
1254 // First only check if at least one parameter exists. Otherwise, it'll stop the result from
1255 // being shown if the user chooses different parameters.
1256 if (!checkParamCount(e, 1))
1259 if (e->params()[0].toUInt() != IrcCap::ACCOUNT_NOTIFY_WHOX_NUM) {
1260 // Ignore WHOX replies without expected number for we have no idea what fields are specified
1264 // Now we're fairly certain this is supposed to be an automated WHOX. Bail out if it doesn't
1265 // match what we require - 9 parameters.
1266 if (!checkParamCount(e, 9))
1269 QString channel = e->params()[1];
1270 IrcUser* ircuser = e->network()->ircUser(e->params()[5]);
1272 // Only process the WHO information if an IRC user exists. Don't create an IRC user here;
1273 // there's no way to track when the user quits, which would leave a phantom IrcUser lying
1275 // NOTE: Whenever MONITOR support is introduced, the IrcUser will be created by an
1276 // RPL_MONONLINE numeric before any WHO commands are run.
1277 processWhoInformation(e->network(), channel, ircuser, e->params()[4], e->params()[2], e->params()[3], e->params()[6], e->params().last());
1278 // Don't use .section(" ", 1) with WHOX replies, for there's no hopcount to trim out
1280 // As part of IRCv3 account-notify, check account name
1281 // WHOX uses '0' to indicate logged-out, account-notify and extended-join uses '*'.
1282 QString newAccount = e->params()[7];
1283 if (newAccount != "0") {
1284 // Account logged in, set account name
1285 ircuser->setAccount(newAccount);
1288 // Account logged out, set account name to logged-out
1289 ircuser->setAccount("*");
1293 // Check if channel name has a who in progress.
1294 if (coreNetwork(e)->isAutoWhoInProgress(channel)) {
1295 e->setFlag(EventManager::Silent);
1299 void CoreSessionEventProcessor::processWhoInformation(Network* net,
1300 const QString& targetChannel,
1302 const QString& server,
1303 const QString& user,
1304 const QString& host,
1305 const QString& awayStateAndModes,
1306 const QString& realname)
1308 ircUser->setUser(user);
1309 ircUser->setHost(host);
1310 ircUser->setServer(server);
1311 ircUser->setRealName(realname);
1313 bool away = awayStateAndModes.contains("G", Qt::CaseInsensitive);
1314 ircUser->setAway(away);
1316 if (net->capEnabled(IrcCap::MULTI_PREFIX)) {
1317 // If multi-prefix is enabled, all modes will be sent in WHO replies.
1318 // :kenny.chatspike.net 352 guest #test grawity broken.symlink *.chatspike.net grawity H@%+ :0 Mantas M.
1319 // See: http://ircv3.net/specs/extensions/multi-prefix-3.1.html
1320 QString uncheckedModes = awayStateAndModes;
1321 QString validModes = QString();
1322 while (!uncheckedModes.isEmpty()) {
1323 // Mode found in 1 left-most character, add it to the list
1324 if (net->prefixes().contains(uncheckedModes[0])) {
1325 validModes.append(net->prefixToMode(uncheckedModes[0]));
1327 // Remove this mode from the list of unchecked modes
1328 uncheckedModes = uncheckedModes.remove(0, 1);
1331 // Some IRC servers decide to not follow the spec, returning only -some- of the user
1332 // modes in WHO despite listing them all in NAMES. For now, assume it can only add
1333 // and not take away. *sigh*
1334 if (!validModes.isEmpty()) {
1335 if (targetChannel != "*") {
1336 // Channel-specific modes received, apply to given channel only
1337 IrcChannel* ircChan = net->ircChannel(targetChannel);
1339 // Do one mode at a time
1340 // TODO Better way of syncing this without breaking protocol?
1341 for (int i = 0; i < validModes.count(); ++i) {
1342 ircChan->addUserMode(ircUser, validModes.at(i));
1347 // Modes apply to the user everywhere
1348 ircUser->addUserModes(validModes);
1354 /* ERR_NOSUCHCHANNEL - "<channel name> :No such channel" */
1355 void CoreSessionEventProcessor::processIrcEvent403(IrcEventNumeric* e)
1357 // If this is the result of an AutoWho, hide it. It's confusing to show to the user.
1358 // Though the ":No such channel" remark should always be there, we should handle cases when it's
1359 // not included, too.
1360 if (!checkParamCount(e, 1))
1363 QString channelOrNick = e->params()[0];
1364 // Check if channel name has a who in progress.
1365 // If not, then check if user nick exists and has a who in progress.
1366 if (coreNetwork(e)->isAutoWhoInProgress(channelOrNick)) {
1367 qDebug() << "Channel/nick" << channelOrNick << "no longer exists during AutoWho, ignoring";
1368 e->setFlag(EventManager::Silent);
1372 /* ERR_ERRONEUSNICKNAME */
1373 void CoreSessionEventProcessor::processIrcEvent432(IrcEventNumeric* e)
1375 if (!checkParamCount(e, 1))
1379 if (e->params().count() < 2) {
1380 // handle unreal-ircd bug, where unreal ircd doesnt supply a TARGET in ERR_ERRONEUSNICKNAME during registration phase:
1382 // :irc.scortum.moep.net 432 @@@ :Erroneous Nickname: Illegal characters
1383 // correct server reply:
1384 // :irc.scortum.moep.net 432 * @@@ :Erroneous Nickname: Illegal characters
1385 e->params().prepend(e->target());
1388 errnick = e->params()[0];
1390 tryNextNick(e, errnick, true /* erroneus */);
1393 /* ERR_NICKNAMEINUSE */
1394 void CoreSessionEventProcessor::processIrcEvent433(IrcEventNumeric* e)
1396 if (!checkParamCount(e, 1))
1399 QString errnick = e->params().first();
1401 // if there is a problem while connecting to the server -> we handle it
1402 // but only if our connection has not been finished yet...
1403 if (!e->network()->currentServer().isEmpty())
1406 tryNextNick(e, errnick);
1409 /* ERR_UNAVAILRESOURCE */
1410 void CoreSessionEventProcessor::processIrcEvent437(IrcEventNumeric* e)
1412 if (!checkParamCount(e, 1))
1415 QString errnick = e->params().first();
1417 // if there is a problem while connecting to the server -> we handle it
1418 // but only if our connection has not been finished yet...
1419 if (!e->network()->currentServer().isEmpty())
1422 if (!e->network()->isChannelName(errnick))
1423 tryNextNick(e, errnick);
1427 void CoreSessionEventProcessor::processIrcEvent(IrcEvent *e) {
1428 if(!checkParamCount(e, 1))
1434 /* Handle signals from Netsplit objects */
1436 void CoreSessionEventProcessor::handleNetsplitJoin(
1437 Network* net, const QString& channel, const QStringList& users, const QStringList& modes, const QString& quitMessage)
1439 IrcChannel* ircChannel = net->ircChannel(channel);
1443 QList<IrcUser*> ircUsers;
1444 QStringList newModes = modes;
1445 QStringList newUsers = users;
1447 for (const QString& user : users) {
1448 IrcUser* iu = net->ircUser(nickFromMask(user));
1450 ircUsers.append(iu);
1451 else { // the user already quit
1452 int idx = users.indexOf(user);
1453 newUsers.removeAt(idx);
1454 newModes.removeAt(idx);
1458 ircChannel->joinIrcUsers(ircUsers, newModes);
1459 NetworkSplitEvent* event = new NetworkSplitEvent(EventManager::NetworkSplitJoin, net, channel, newUsers, quitMessage);
1460 emit newEvent(event);
1463 void CoreSessionEventProcessor::handleNetsplitQuit(Network* net, const QString& channel, const QStringList& users, const QString& quitMessage)
1465 NetworkSplitEvent* event = new NetworkSplitEvent(EventManager::NetworkSplitQuit, net, channel, users, quitMessage);
1466 emit newEvent(event);
1467 for (const QString& user : users) {
1468 IrcUser* ircUser = net->ircUser(nickFromMask(user));
1469 if (ircUser) ircUser->quit();
1473 void CoreSessionEventProcessor::handleEarlyNetsplitJoin(Network* net, const QString& channel, const QStringList& users, const QStringList& modes)
1475 IrcChannel* ircChannel = net->ircChannel(channel);
1477 qDebug() << "handleEarlyNetsplitJoin(): channel " << channel << " invalid";
1480 QList<NetworkEvent*> events;
1481 QList<IrcUser*> ircUsers;
1482 QStringList newModes = modes;
1484 for (const QString& user : users) {
1485 IrcUser* ircUser = net->updateNickFromMask(user);
1487 ircUsers.append(ircUser);
1488 // fake event for scripts that consume join events
1489 events << new IrcEvent(EventManager::IrcEventJoin, net, {}, ircUser->hostmask(), QStringList() << channel);
1492 newModes.removeAt(users.indexOf(user));
1495 ircChannel->joinIrcUsers(ircUsers, newModes);
1496 for (NetworkEvent* event : events) {
1497 event->setFlag(EventManager::Fake); // ignore this in here!
1498 emit newEvent(event);
1502 void CoreSessionEventProcessor::handleNetsplitFinished()
1504 auto* n = qobject_cast<Netsplit*>(sender());
1506 QHash<QString, Netsplit*> splithash = _netsplits.take(n->network());
1507 splithash.remove(splithash.key(n));
1508 if (splithash.count())
1509 _netsplits[n->network()] = splithash;
1513 void CoreSessionEventProcessor::destroyNetsplits(NetworkId netId)
1515 Network* net = coreSession()->network(netId);
1519 QHash<QString, Netsplit*> splits = _netsplits.take(net);
1523 /*******************************/
1524 /******** CTCP HANDLING ********/
1525 /*******************************/
1527 void CoreSessionEventProcessor::processCtcpEvent(CtcpEvent* e)
1529 if (e->testFlag(EventManager::Self))
1530 return; // ignore ctcp events generated by user input
1532 if (e->type() != EventManager::CtcpEvent || e->ctcpType() != CtcpEvent::Query)
1535 handle(e->ctcpCmd(), Q_ARG(CtcpEvent*, e));
1538 void CoreSessionEventProcessor::defaultHandler(const QString& ctcpCmd, CtcpEvent* e)
1540 // This handler is only there to avoid warnings for unknown CTCPs
1545 void CoreSessionEventProcessor::handleCtcpAction(CtcpEvent* e)
1547 // This handler is only there to feed CLIENTINFO
1551 void CoreSessionEventProcessor::handleCtcpClientinfo(CtcpEvent* e)
1553 QStringList supportedHandlers;
1554 for (const QString& handler : providesHandlers())
1555 supportedHandlers << handler.toUpper();
1556 std::sort(supportedHandlers.begin(), supportedHandlers.end());
1557 e->setReply(supportedHandlers.join(" "));
1560 // http://www.irchelp.org/irchelp/rfc/ctcpspec.html
1561 // http://en.wikipedia.org/wiki/Direct_Client-to-Client
1562 void CoreSessionEventProcessor::handleCtcpDcc(CtcpEvent* e)
1564 // DCC support is unfinished, experimental and potentially dangerous, so make it opt-in
1565 if (!Quassel::isOptionSet("enable-experimental-dcc")) {
1566 qInfo() << "DCC disabled, start core with --enable-experimental-dcc if you really want to try it out";
1570 // normal: SEND <filename> <ip> <port> [<filesize>]
1571 // reverse: SEND <filename> <ip> 0 <filesize> <token>
1572 QStringList params = e->param().split(' ');
1573 if (params.count()) {
1574 QString cmd = params[0].toUpper();
1575 if (cmd == "SEND") {
1576 if (params.count() < 4) {
1577 qWarning() << "Invalid DCC SEND request:" << e; // TODO emit proper error to client
1580 QString filename = params[1];
1581 QHostAddress address;
1582 quint16 port = params[3].toUShort();
1584 QString numIp = params[2]; // this is either IPv4 as a 32 bit value, or IPv6 (which always contains a colon)
1585 if (numIp.contains(':')) { // IPv6
1586 if (!address.setAddress(numIp)) {
1587 qWarning() << "Invalid IPv6:" << numIp;
1592 address.setAddress(numIp.toUInt());
1595 if (port == 0) { // Reverse DCC is indicated by a 0 port
1596 emit newEvent(new MessageEvent(Message::Error,
1598 tr("Reverse DCC SEND not supported"),
1606 qWarning() << "Privileged port requested:" << port; // FIXME ask user if this is ok
1609 if (params.count() > 4) { // filesize is optional
1610 size = params[4].toULong();
1613 // TODO: check if target is the right thing to use for the partner
1614 CoreTransfer* transfer = new CoreTransfer(Transfer::Direction::Receive, e->target(), filename, address, port, size, this);
1615 coreSession()->signalProxy()->synchronize(transfer);
1616 coreSession()->transferManager()->addTransfer(transfer);
1619 emit newEvent(new MessageEvent(Message::Error,
1621 tr("DCC %1 not supported").arg(cmd),
1631 void CoreSessionEventProcessor::handleCtcpPing(CtcpEvent* e)
1633 e->setReply(e->param().isNull() ? "" : e->param());
1636 void CoreSessionEventProcessor::handleCtcpTime(CtcpEvent* e)
1638 // Use the ISO standard to avoid locale-specific translated names
1639 // Include timezone offset data to show which timezone a user's in, otherwise we're providing
1640 // NTP-over-IRC with terrible accuracy.
1641 e->setReply(formatDateTimeToOffsetISO(QDateTime::currentDateTime()));
1644 void CoreSessionEventProcessor::handleCtcpVersion(CtcpEvent* e)
1646 // Deliberately do not translate project name
1647 // Use the ISO standard to avoid locale-specific translated names
1648 // Use UTC time to provide a consistent string regardless of timezone
1649 // (Statistics tracking tools usually only group client versions by exact string matching)
1650 e->setReply(QString("Quassel IRC %1 (version date %2) -- https://www.quassel-irc.org")
1651 .arg(Quassel::buildInfo().plainVersionString)
1652 .arg(Quassel::buildInfo().commitDate.isEmpty()
1654 : tryFormatUnixEpoch(Quassel::buildInfo().commitDate, Qt::DateFormat::ISODate, true)));