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coresessioneventprocessor.cpp
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20 
22 
23 #include "coreirclisthelper.h"
24 #include "corenetwork.h"
25 #include "coresession.h"
26 #include "coretransfer.h"
27 #include "coretransfermanager.h"
28 #include "ctcpevent.h"
29 #include "ircevent.h"
30 #include "ircuser.h"
31 #include "logger.h"
32 #include "messageevent.h"
33 #include "netsplit.h"
34 #include "quassel.h"
35 
36 #ifdef HAVE_QCA2
37 # include "keyevent.h"
38 #endif
39 
41  : BasicHandler("handleCtcp", session),
42  _coreSession(session)
43 {
44  connect(coreSession(), SIGNAL(networkDisconnected(NetworkId)), this, SLOT(destroyNetsplits(NetworkId)));
45  connect(this, SIGNAL(newEvent(Event *)), coreSession()->eventManager(), SLOT(postEvent(Event *)));
46 }
47 
48 
50 {
51  if (e->params().count() < minParams) {
52  if (e->type() == EventManager::IrcEventNumeric) {
53  qWarning() << "Command " << static_cast<IrcEventNumeric *>(e)->number() << " requires " << minParams << "params, got: " << e->params();
54  }
55  else {
56  QString name = coreSession()->eventManager()->enumName(e->type());
57  qWarning() << qPrintable(name) << "requires" << minParams << "params, got:" << e->params();
58  }
59  e->stop();
60  return false;
61  }
62  return true;
63 }
64 
65 
66 void CoreSessionEventProcessor::tryNextNick(NetworkEvent *e, const QString &errnick, bool erroneus)
67 {
68  QStringList desiredNicks = coreSession()->identity(e->network()->identity())->nicks();
69  int nextNickIdx = desiredNicks.indexOf(errnick) + 1;
70  QString nextNick;
71  if (nextNickIdx > 0 && desiredNicks.size() > nextNickIdx) {
72  nextNick = desiredNicks[nextNickIdx];
73  }
74  else {
75  if (erroneus) {
76  // FIXME Make this an ErrorEvent or something like that, so it's translated in the client
77  MessageEvent *msgEvent = new MessageEvent(Message::Error, e->network(),
78  tr("No free and valid nicks in nicklist found. use: /nick <othernick> to continue"),
79  QString(), QString(), Message::None, e->timestamp());
80  emit newEvent(msgEvent);
81  return;
82  }
83  else {
84  nextNick = errnick + "_";
85  }
86  }
87  // FIXME Use a proper output event for this
88  coreNetwork(e)->putRawLine("NICK " + coreNetwork(e)->encodeServerString(nextNick));
89 }
90 
91 
93 {
94  switch (e->number()) {
95  // CAP stuff
96  case 903:
97  case 904:
98  case 905:
99  case 906:
100  case 907:
101  qobject_cast<CoreNetwork *>(e->network())->putRawLine("CAP END");
102  break;
103 
104  default:
105  break;
106  }
107 }
108 
109 
111 {
112  if (!checkParamCount(e, 1))
113  return;
114 
115  if (e->params().at(0) != "+") {
116  qWarning() << "Invalid AUTHENTICATE" << e;
117  return;
118  }
119 
120  CoreNetwork *net = coreNetwork(e);
121 
122 #ifdef HAVE_SSL
123  if (net->identityPtr()->sslCert().isNull()) {
124 #endif
125  QString construct = net->saslAccount();
126  construct.append(QChar(QChar::Null));
127  construct.append(net->saslAccount());
128  construct.append(QChar(QChar::Null));
129  construct.append(net->saslPassword());
130  QByteArray saslData = QByteArray(construct.toLatin1().toBase64());
131  saslData.prepend("AUTHENTICATE ");
132  net->putRawLine(saslData);
133 #ifdef HAVE_SSL
134  } else {
135  net->putRawLine("AUTHENTICATE +");
136  }
137 #endif
138 }
139 
140 
142 {
143  // for SASL, there will only be a single param of 'sasl', however you can check here for
144  // additional CAP messages (ls, multi-prefix, et cetera).
145 
146  if (e->params().count() == 3) {
147  if (e->params().at(2).startsWith("sasl")) { // Freenode (at least) sends "sasl " with a trailing space for some reason!
148  // FIXME use event
149  // if the current identity has a cert set, use SASL EXTERNAL
150 #ifdef HAVE_SSL
151  if (!coreNetwork(e)->identityPtr()->sslCert().isNull()) {
152  coreNetwork(e)->putRawLine(coreNetwork(e)->serverEncode("AUTHENTICATE EXTERNAL"));
153  } else {
154 #endif
155  // Only working with PLAIN atm, blowfish later
156  coreNetwork(e)->putRawLine(coreNetwork(e)->serverEncode("AUTHENTICATE PLAIN"));
157 #ifdef HAVE_SSL
158  }
159 #endif
160  }
161  }
162 }
163 
164 
166 {
167  if (checkParamCount(e, 2)) {
168  e->network()->updateNickFromMask(e->prefix());
169  }
170 }
171 
172 
174 {
175  if (e->testFlag(EventManager::Fake)) // generated by handleEarlyNetsplitJoin
176  return;
177 
178  if (!checkParamCount(e, 1))
179  return;
180 
181  CoreNetwork *net = coreNetwork(e);
182  QString channel = e->params()[0];
183  IrcUser *ircuser = net->updateNickFromMask(e->prefix());
184 
185  bool handledByNetsplit = false;
186  foreach(Netsplit* n, _netsplits.value(e->network())) {
187  handledByNetsplit = n->userJoined(e->prefix(), channel);
188  if (handledByNetsplit)
189  break;
190  }
191 
192  if (!handledByNetsplit)
193  ircuser->joinChannel(channel);
194  else
196 
197  if (net->isMe(ircuser)) {
198  net->setChannelJoined(channel);
199  // FIXME use event
200  net->putRawLine(net->serverEncode("MODE " + channel)); // we want to know the modes of the channel we just joined, so we ask politely
201  }
202 }
203 
204 
206 {
207  if (checkParamCount(e, 2)) {
208  e->network()->updateNickFromMask(e->prefix());
209  IrcUser *victim = e->network()->ircUser(e->params().at(1));
210  if (victim) {
211  victim->partChannel(e->params().at(0));
212  //if(e->network()->isMe(victim)) e->network()->setKickedFromChannel(channel);
213  }
214  }
215 }
216 
217 
219 {
220  if (!checkParamCount(e, 2))
221  return;
222 
223  if (e->network()->isChannelName(e->params().first())) {
224  // Channel Modes
225 
226  IrcChannel *channel = e->network()->ircChannel(e->params()[0]);
227  if (!channel) {
228  // we received mode information for a channel we're not in. that means probably we've just been kicked out or something like that
229  // anyways: we don't have a place to store the data --> discard the info.
230  return;
231  }
232 
233  QString modes = e->params()[1];
234  bool add = true;
235  int paramOffset = 2;
236  for (int c = 0; c < modes.length(); c++) {
237  if (modes[c] == '+') {
238  add = true;
239  continue;
240  }
241  if (modes[c] == '-') {
242  add = false;
243  continue;
244  }
245 
246  if (e->network()->prefixModes().contains(modes[c])) {
247  // user channel modes (op, voice, etc...)
248  if (paramOffset < e->params().count()) {
249  IrcUser *ircUser = e->network()->ircUser(e->params()[paramOffset]);
250  if (!ircUser) {
251  qWarning() << Q_FUNC_INFO << "Unknown IrcUser:" << e->params()[paramOffset];
252  }
253  else {
254  if (add) {
255  bool handledByNetsplit = false;
256  QHash<QString, Netsplit *> splits = _netsplits.value(e->network());
257  foreach(Netsplit* n, _netsplits.value(e->network())) {
258  handledByNetsplit = n->userAlreadyJoined(ircUser->hostmask(), channel->name());
259  if (handledByNetsplit) {
260  n->addMode(ircUser->hostmask(), channel->name(), QString(modes[c]));
261  break;
262  }
263  }
264  if (!handledByNetsplit)
265  channel->addUserMode(ircUser, QString(modes[c]));
266  }
267  else
268  channel->removeUserMode(ircUser, QString(modes[c]));
269  }
270  }
271  else {
272  qWarning() << "Received MODE with too few parameters:" << e->params();
273  }
274  ++paramOffset;
275  }
276  else {
277  // regular channel modes
278  QString value;
279  Network::ChannelModeType modeType = e->network()->channelModeType(modes[c]);
280  if (modeType == Network::A_CHANMODE || modeType == Network::B_CHANMODE || (modeType == Network::C_CHANMODE && add)) {
281  if (paramOffset < e->params().count()) {
282  value = e->params()[paramOffset];
283  }
284  else {
285  qWarning() << "Received MODE with too few parameters:" << e->params();
286  }
287  ++paramOffset;
288  }
289 
290  if (add)
291  channel->addChannelMode(modes[c], value);
292  else
293  channel->removeChannelMode(modes[c], value);
294  }
295  }
296  }
297  else {
298  // pure User Modes
299  IrcUser *ircUser = e->network()->newIrcUser(e->params().first());
300  QString modeString(e->params()[1]);
301  QString addModes;
302  QString removeModes;
303  bool add = false;
304  for (int c = 0; c < modeString.count(); c++) {
305  if (modeString[c] == '+') {
306  add = true;
307  continue;
308  }
309  if (modeString[c] == '-') {
310  add = false;
311  continue;
312  }
313  if (add)
314  addModes += modeString[c];
315  else
316  removeModes += modeString[c];
317  }
318  if (!addModes.isEmpty())
319  ircUser->addUserModes(addModes);
320  if (!removeModes.isEmpty())
321  ircUser->removeUserModes(removeModes);
322 
323  if (e->network()->isMe(ircUser)) {
324  coreNetwork(e)->updatePersistentModes(addModes, removeModes);
325  }
326  }
327 }
328 
329 
331 {
332  if (checkParamCount(e, 1)) {
333  IrcUser *ircuser = e->network()->updateNickFromMask(e->prefix());
334  if (!ircuser) {
335  qWarning() << Q_FUNC_INFO << "Unknown IrcUser!";
336  return;
337  }
338  QString newnick = e->params().at(0);
339  QString oldnick = ircuser->nick();
340 
341  // the order is cruicial
342  // otherwise the client would rename the buffer, see that the assigned ircuser doesn't match anymore
343  // and remove the ircuser from the querybuffer leading to a wrong on/offline state
344  ircuser->setNick(newnick);
345  coreSession()->renameBuffer(e->networkId(), newnick, oldnick);
346  }
347 }
348 
349 
351 {
352  if (checkParamCount(e, 1)) {
353  IrcUser *ircuser = e->network()->updateNickFromMask(e->prefix());
354  if (!ircuser) {
355  qWarning() << Q_FUNC_INFO<< "Unknown IrcUser!";
356  return;
357  }
358  QString channel = e->params().at(0);
359  ircuser->partChannel(channel);
360  if (e->network()->isMe(ircuser))
361  qobject_cast<CoreNetwork *>(e->network())->setChannelParted(channel);
362  }
363 }
364 
365 
367 {
368  QString param = e->params().count() ? e->params().first() : QString();
369  // FIXME use events
370  coreNetwork(e)->putRawLine("PONG " + coreNetwork(e)->serverEncode(param));
371 }
372 
373 
375 {
376  // the server is supposed to send back what we passed as param. and we send a timestamp
377  // but using quote and whatnought one can send arbitrary pings, so we have to do some sanity checks
378  if (checkParamCount(e, 2)) {
379  QString timestamp = e->params().at(1);
380  QTime sendTime = QTime::fromString(timestamp, "hh:mm:ss.zzz");
381  if (sendTime.isValid())
382  e->network()->setLatency(sendTime.msecsTo(QTime::currentTime()) / 2);
383  }
384 }
385 
386 
388 {
389  IrcUser *ircuser = e->network()->updateNickFromMask(e->prefix());
390  if (!ircuser)
391  return;
392 
393  QString msg;
394  if (e->params().count() > 0)
395  msg = e->params()[0];
396 
397  // check if netsplit
398  if (Netsplit::isNetsplit(msg)) {
399  Netsplit *n;
400  if (!_netsplits[e->network()].contains(msg)) {
401  n = new Netsplit(e->network(), this);
402  connect(n, SIGNAL(finished()), this, SLOT(handleNetsplitFinished()));
403  connect(n, SIGNAL(netsplitJoin(Network*, QString, QStringList, QStringList, QString)),
404  this, SLOT(handleNetsplitJoin(Network*, QString, QStringList, QStringList, QString)));
405  connect(n, SIGNAL(netsplitQuit(Network*, QString, QStringList, QString)),
406  this, SLOT(handleNetsplitQuit(Network*, QString, QStringList, QString)));
407  connect(n, SIGNAL(earlyJoin(Network*, QString, QStringList, QStringList)),
408  this, SLOT(handleEarlyNetsplitJoin(Network*, QString, QStringList, QStringList)));
409  _netsplits[e->network()].insert(msg, n);
410  }
411  else {
412  n = _netsplits[e->network()][msg];
413  }
414  // add this user to the netsplit
415  n->userQuit(e->prefix(), ircuser->channels(), msg);
417  }
418  // normal quit is handled in lateProcessIrcEventQuit()
419 }
420 
421 
423 {
425  return;
426 
427  IrcUser *ircuser = e->network()->updateNickFromMask(e->prefix());
428  if (!ircuser)
429  return;
430 
431  ircuser->quit();
432 }
433 
434 
436 {
437  if (checkParamCount(e, 2)) {
438  e->network()->updateNickFromMask(e->prefix());
439  IrcChannel *channel = e->network()->ircChannel(e->params().at(0));
440  if (channel)
441  channel->setTopic(e->params().at(1));
442  }
443 }
444 
445 
446 #ifdef HAVE_QCA2
447 void CoreSessionEventProcessor::processKeyEvent(KeyEvent *e)
448 {
450  emit newEvent(new MessageEvent(Message::Error, e->network(), tr("Unable to perform key exchange, missing qca-ossl plugin."), e->prefix(), e->target(), Message::None, e->timestamp()));
451  return;
452  }
453  CoreNetwork *net = qobject_cast<CoreNetwork*>(e->network());
454  Cipher *c = net->cipher(e->target());
455  if (!c) // happens when there is no CoreIrcChannel for the target (i.e. never?)
456  return;
457 
458  if (e->exchangeType() == KeyEvent::Init) {
459  QByteArray pubKey = c->parseInitKeyX(e->key());
460  if (pubKey.isEmpty()) {
461  emit newEvent(new MessageEvent(Message::Error, e->network(), tr("Unable to parse the DH1080_INIT. Key exchange failed."), e->prefix(), e->target(), Message::None, e->timestamp()));
462  return;
463  } else {
464  net->setCipherKey(e->target(), c->key());
465  emit newEvent(new MessageEvent(Message::Info, e->network(), tr("Your key is set and messages will be encrypted."), e->prefix(), e->target(), Message::None, e->timestamp()));
466  QList<QByteArray> p;
467  p << net->serverEncode(e->target()) << net->serverEncode("DH1080_FINISH ")+pubKey;
468  net->putCmd("NOTICE", p);
469  }
470  } else {
471  if (c->parseFinishKeyX(e->key())) {
472  net->setCipherKey(e->target(), c->key());
473  emit newEvent(new MessageEvent(Message::Info, e->network(), tr("Your key is set and messages will be encrypted."), e->prefix(), e->target(), Message::None, e->timestamp()));
474  } else {
475  emit newEvent(new MessageEvent(Message::Info, e->network(), tr("Failed to parse DH1080_FINISH. Key exchange failed."), e->prefix(), e->target(), Message::None, e->timestamp()));
476  }
477  }
478 }
479 #endif
480 
481 
482 /* RPL_WELCOME */
484 {
485  e->network()->setCurrentServer(e->prefix());
486  e->network()->setMyNick(e->target());
487 }
488 
489 
490 /* RPL_ISUPPORT */
491 // TODO Complete 005 handling, also use sensible defaults for non-sent stuff
493 {
494  if (!checkParamCount(e, 1))
495  return;
496 
497  QString key, value;
498  for (int i = 0; i < e->params().count() - 1; i++) {
499  QString key = e->params()[i].section("=", 0, 0);
500  QString value = e->params()[i].section("=", 1);
501  e->network()->addSupport(key, value);
502  }
503 
504  /* determine our prefixes here to get an accurate result */
505  e->network()->determinePrefixes();
506 }
507 
508 
509 /* RPL_UMODEIS - "<user_modes> [<user_mode_params>]" */
511 {
512  // TODO: save information in network object
513 }
514 
515 
516 /* RPL_STATSCONN - "Highest connection cout: 8000 (7999 clients)" */
518 {
519  // TODO: save information in network object
520 }
521 
522 
523 /* RPL_LOCALUSERS - "Current local user: 5024 Max: 7999 */
525 {
526  // TODO: save information in network object
527 }
528 
529 
530 /* RPL_GLOBALUSERS - "Current global users: 46093 Max: 47650" */
532 {
533  // TODO: save information in network object
534 }
535 
536 
537 /*
538 WHOIS-Message:
539  Replies 311 - 313, 317 - 319 are all replies generated in response to a WHOIS message.
540  and 301 (RPL_AWAY)
541  "<nick> :<away message>"
542 WHO-Message:
543  Replies 352 and 315 paired are used to answer a WHO message.
544 
545 WHOWAS-Message:
546  Replies 314 and 369 are responses to a WHOWAS message.
547 
548 */
549 
550 /* RPL_AWAY - "<nick> :<away message>" */
552 {
553  if (!checkParamCount(e, 2))
554  return;
555 
556  IrcUser *ircuser = e->network()->ircUser(e->params().at(0));
557  if (ircuser) {
558  ircuser->setAway(true);
559  ircuser->setAwayMessage(e->params().at(1));
560  //ircuser->setLastAwayMessage(now);
561  }
562 }
563 
564 
565 /* RPL_UNAWAY - ":You are no longer marked as being away" */
567 {
568  IrcUser *me = e->network()->me();
569  if (me)
570  me->setAway(false);
571 
572  if (e->network()->autoAwayActive()) {
573  e->network()->setAutoAwayActive(false);
575  }
576 }
577 
578 
579 /* RPL_NOWAWAY - ":You have been marked as being away" */
581 {
582  IrcUser *me = e->network()->me();
583  if (me)
584  me->setAway(true);
585 }
586 
587 
588 /* RPL_WHOISSERVICE - "<user> is registered nick" */
590 {
591  if (!checkParamCount(e, 1))
592  return;
593 
594  IrcUser *ircuser = e->network()->ircUser(e->params().at(0));
595  if (ircuser)
596  ircuser->setWhoisServiceReply(e->params().join(" "));
597 }
598 
599 
600 /* RPL_SUSERHOST - "<user> is available for help." */
602 {
603  if (!checkParamCount(e, 1))
604  return;
605 
606  IrcUser *ircuser = e->network()->ircUser(e->params().at(0));
607  if (ircuser)
608  ircuser->setSuserHost(e->params().join(" "));
609 }
610 
611 
612 /* RPL_WHOISUSER - "<nick> <user> <host> * :<real name>" */
614 {
615  if (!checkParamCount(e, 3))
616  return;
617 
618  IrcUser *ircuser = e->network()->ircUser(e->params().at(0));
619  if (ircuser) {
620  ircuser->setUser(e->params().at(1));
621  ircuser->setHost(e->params().at(2));
622  ircuser->setRealName(e->params().last());
623  }
624 }
625 
626 
627 /* RPL_WHOISSERVER - "<nick> <server> :<server info>" */
629 {
630  if (!checkParamCount(e, 2))
631  return;
632 
633  IrcUser *ircuser = e->network()->ircUser(e->params().at(0));
634  if (ircuser)
635  ircuser->setServer(e->params().at(1));
636 }
637 
638 
639 /* RPL_WHOISOPERATOR - "<nick> :is an IRC operator" */
641 {
642  if (!checkParamCount(e, 1))
643  return;
644 
645  IrcUser *ircuser = e->network()->ircUser(e->params().at(0));
646  if (ircuser)
647  ircuser->setIrcOperator(e->params().last());
648 }
649 
650 
651 /* RPL_ENDOFWHO: "<name> :End of WHO list" */
653 {
654  if (!checkParamCount(e, 1))
655  return;
656 
657  if (coreNetwork(e)->setAutoWhoDone(e->params()[0]))
659 }
660 
661 
662 /* RPL_WHOISIDLE - "<nick> <integer> :seconds idle"
663  (real life: "<nick> <integer> <integer> :seconds idle, signon time) */
665 {
666  if (!checkParamCount(e, 2))
667  return;
668 
669  QDateTime loginTime;
670 
671  int idleSecs = e->params()[1].toInt();
672  if (e->params().count() > 3) { // if we have more then 3 params we have the above mentioned "real life" situation
673  int logintime = e->params()[2].toInt();
674  loginTime = QDateTime::fromTime_t(logintime);
675  }
676 
677  IrcUser *ircuser = e->network()->ircUser(e->params()[0]);
678  if (ircuser) {
679  ircuser->setIdleTime(e->timestamp().addSecs(-idleSecs));
680  if (loginTime.isValid())
681  ircuser->setLoginTime(loginTime);
682  }
683 }
684 
685 
686 /* RPL_LIST - "<channel> <# visible> :<topic>" */
688 {
689  if (!checkParamCount(e, 1))
690  return;
691 
692  QString channelName;
693  quint32 userCount = 0;
694  QString topic;
695 
696  switch (e->params().count()) {
697  case 3:
698  topic = e->params()[2];
699  case 2:
700  userCount = e->params()[1].toUInt();
701  case 1:
702  channelName = e->params()[0];
703  default:
704  break;
705  }
706  if (coreSession()->ircListHelper()->addChannel(e->networkId(), channelName, userCount, topic))
707  e->stop(); // consumed by IrcListHelper, so don't further process/show this event
708 }
709 
710 
711 /* RPL_LISTEND ":End of LIST" */
713 {
714  if (!checkParamCount(e, 1))
715  return;
716 
717  if (coreSession()->ircListHelper()->endOfChannelList(e->networkId()))
718  e->stop(); // consumed by IrcListHelper, so don't further process/show this event
719 }
720 
721 
722 /* RPL_CHANNELMODEIS - "<channel> <mode> <mode params>" */
724 {
726 }
727 
728 
729 /* RPL_NOTOPIC */
731 {
732  if (!checkParamCount(e, 1))
733  return;
734 
735  IrcChannel *chan = e->network()->ircChannel(e->params()[0]);
736  if (chan)
737  chan->setTopic(QString());
738 }
739 
740 
741 /* RPL_TOPIC */
743 {
744  if (!checkParamCount(e, 2))
745  return;
746 
747  IrcChannel *chan = e->network()->ircChannel(e->params()[0]);
748  if (chan)
749  chan->setTopic(e->params()[1]);
750 }
751 
752 
753 /* RPL_WHOREPLY: "<channel> <user> <host> <server> <nick>
754  ( "H" / "G" > ["*"] [ ( "@" / "+" ) ] :<hopcount> <real name>" */
756 {
757  if (!checkParamCount(e, 6))
758  return;
759 
760  QString channel = e->params()[0];
761  IrcUser *ircuser = e->network()->ircUser(e->params()[4]);
762  if (ircuser) {
763  ircuser->setUser(e->params()[1]);
764  ircuser->setHost(e->params()[2]);
765 
766  bool away = e->params()[5].startsWith("G");
767  ircuser->setAway(away);
768  ircuser->setServer(e->params()[3]);
769  ircuser->setRealName(e->params().last().section(" ", 1));
770  }
771 
772  if (coreNetwork(e)->isAutoWhoInProgress(channel))
774 }
775 
776 
777 /* RPL_NAMREPLY */
779 {
780  if (!checkParamCount(e, 3))
781  return;
782 
783  // param[0] is either "=", "*" or "@" indicating a public, private or secret channel
784  // we don't use this information at the time beeing
785  QString channelname = e->params()[1];
786 
787  IrcChannel *channel = e->network()->ircChannel(channelname);
788  if (!channel) {
789  qWarning() << Q_FUNC_INFO << "Received unknown target channel:" << channelname;
790  return;
791  }
792 
793  QStringList nicks;
794  QStringList modes;
795 
796  foreach(QString nick, e->params()[2].split(' ', QString::SkipEmptyParts)) {
797  QString mode;
798 
799  if (e->network()->prefixes().contains(nick[0])) {
800  mode = e->network()->prefixToMode(nick[0]);
801  nick = nick.mid(1);
802  }
803 
804  nicks << nick;
805  modes << mode;
806  }
807 
808  channel->joinIrcUsers(nicks, modes);
809 }
810 
811 
812 /* ERR_ERRONEUSNICKNAME */
814 {
815  if (!checkParamCount(e, 1))
816  return;
817 
818  QString errnick;
819  if (e->params().count() < 2) {
820  // handle unreal-ircd bug, where unreal ircd doesnt supply a TARGET in ERR_ERRONEUSNICKNAME during registration phase:
821  // nick @@@
822  // :irc.scortum.moep.net 432 @@@ :Erroneous Nickname: Illegal characters
823  // correct server reply:
824  // :irc.scortum.moep.net 432 * @@@ :Erroneous Nickname: Illegal characters
825  e->params().prepend(e->target());
826  e->setTarget("*");
827  }
828  errnick = e->params()[0];
829 
830  tryNextNick(e, errnick, true /* erroneus */);
831 }
832 
833 
834 /* ERR_NICKNAMEINUSE */
836 {
837  if (!checkParamCount(e, 1))
838  return;
839 
840  QString errnick = e->params().first();
841 
842  // if there is a problem while connecting to the server -> we handle it
843  // but only if our connection has not been finished yet...
844  if (!e->network()->currentServer().isEmpty())
845  return;
846 
847  tryNextNick(e, errnick);
848 }
849 
850 
851 /* ERR_UNAVAILRESOURCE */
853 {
854  if (!checkParamCount(e, 1))
855  return;
856 
857  QString errnick = e->params().first();
858 
859  // if there is a problem while connecting to the server -> we handle it
860  // but only if our connection has not been finished yet...
861  if (!e->network()->currentServer().isEmpty())
862  return;
863 
864  if (!e->network()->isChannelName(errnick))
865  tryNextNick(e, errnick);
866 }
867 
868 
869 /* template
870 void CoreSessionEventProcessor::processIrcEvent(IrcEvent *e) {
871  if(!checkParamCount(e, 1))
872  return;
873 
874 }
875 */
876 
877 /* Handle signals from Netsplit objects */
878 
880  const QString &channel,
881  const QStringList &users,
882  const QStringList &modes,
883  const QString &quitMessage)
884 {
885  IrcChannel *ircChannel = net->ircChannel(channel);
886  if (!ircChannel) {
887  return;
888  }
889  QList<IrcUser *> ircUsers;
890  QStringList newModes = modes;
891  QStringList newUsers = users;
892 
893  foreach(const QString &user, users) {
894  IrcUser *iu = net->ircUser(nickFromMask(user));
895  if (iu)
896  ircUsers.append(iu);
897  else { // the user already quit
898  int idx = users.indexOf(user);
899  newUsers.removeAt(idx);
900  newModes.removeAt(idx);
901  }
902  }
903 
904  ircChannel->joinIrcUsers(ircUsers, newModes);
905  NetworkSplitEvent *event = new NetworkSplitEvent(EventManager::NetworkSplitJoin, net, channel, newUsers, quitMessage);
906  emit newEvent(event);
907 }
908 
909 
910 void CoreSessionEventProcessor::handleNetsplitQuit(Network *net, const QString &channel, const QStringList &users, const QString &quitMessage)
911 {
912  NetworkSplitEvent *event = new NetworkSplitEvent(EventManager::NetworkSplitQuit, net, channel, users, quitMessage);
913  emit newEvent(event);
914  foreach(QString user, users) {
915  IrcUser *iu = net->ircUser(nickFromMask(user));
916  if (iu)
917  iu->quit();
918  }
919 }
920 
921 
922 void CoreSessionEventProcessor::handleEarlyNetsplitJoin(Network *net, const QString &channel, const QStringList &users, const QStringList &modes)
923 {
924  IrcChannel *ircChannel = net->ircChannel(channel);
925  if (!ircChannel) {
926  qDebug() << "handleEarlyNetsplitJoin(): channel " << channel << " invalid";
927  return;
928  }
929  QList<NetworkEvent *> events;
930  QList<IrcUser *> ircUsers;
931  QStringList newModes = modes;
932 
933  foreach(QString user, users) {
934  IrcUser *iu = net->updateNickFromMask(user);
935  if (iu) {
936  ircUsers.append(iu);
937  // fake event for scripts that consume join events
938  events << new IrcEvent(EventManager::IrcEventJoin, net, iu->hostmask(), QStringList() << channel);
939  }
940  else {
941  newModes.removeAt(users.indexOf(user));
942  }
943  }
944  ircChannel->joinIrcUsers(ircUsers, newModes);
945  foreach(NetworkEvent *event, events) {
946  event->setFlag(EventManager::Fake); // ignore this in here!
947  emit newEvent(event);
948  }
949 }
950 
951 
953 {
954  Netsplit *n = qobject_cast<Netsplit *>(sender());
955  Q_ASSERT(n);
956  QHash<QString, Netsplit *> splithash = _netsplits.take(n->network());
957  splithash.remove(splithash.key(n));
958  if (splithash.count())
959  _netsplits[n->network()] = splithash;
960  n->deleteLater();
961 }
962 
963 
965 {
966  Network *net = coreSession()->network(netId);
967  if (!net)
968  return;
969 
970  QHash<QString, Netsplit *> splits = _netsplits.take(net);
971  qDeleteAll(splits);
972 }
973 
974 
975 /*******************************/
976 /******** CTCP HANDLING ********/
977 /*******************************/
978 
980 {
982  return; // ignore ctcp events generated by user input
983 
984  if (e->type() != EventManager::CtcpEvent || e->ctcpType() != CtcpEvent::Query)
985  return;
986 
987  handle(e->ctcpCmd(), Q_ARG(CtcpEvent *, e));
988 }
989 
990 
991 void CoreSessionEventProcessor::defaultHandler(const QString &ctcpCmd, CtcpEvent *e)
992 {
993  // This handler is only there to avoid warnings for unknown CTCPs
994  Q_UNUSED(e);
995  Q_UNUSED(ctcpCmd);
996 }
997 
998 
1000 {
1001  // This handler is only there to feed CLIENTINFO
1002  Q_UNUSED(e);
1003 }
1004 
1005 
1007 {
1008  QStringList supportedHandlers;
1009  foreach(QString handler, providesHandlers())
1010  supportedHandlers << handler.toUpper();
1011  qSort(supportedHandlers);
1012  e->setReply(supportedHandlers.join(" "));
1013 }
1014 
1015 
1016 // http://www.irchelp.org/irchelp/rfc/ctcpspec.html
1017 // http://en.wikipedia.org/wiki/Direct_Client-to-Client
1019 {
1020  // DCC support is unfinished, experimental and potentially dangerous, so make it opt-in
1021  if (!Quassel::isOptionSet("enable-experimental-dcc")) {
1022  quInfo() << "DCC disabled, start core with --enable-experimental-dcc if you really want to try it out";
1023  return;
1024  }
1025 
1026  // normal: SEND <filename> <ip> <port> [<filesize>]
1027  // reverse: SEND <filename> <ip> 0 <filesize> <token>
1028  QStringList params = e->param().split(' ');
1029  if (params.count()) {
1030  QString cmd = params[0].toUpper();
1031  if (cmd == "SEND") {
1032  if (params.count() < 4) {
1033  qWarning() << "Invalid DCC SEND request:" << e; // TODO emit proper error to client
1034  return;
1035  }
1036  QString filename = params[1];
1037  QHostAddress address;
1038  quint16 port = params[3].toUShort();
1039  quint64 size = 0;
1040  QString numIp = params[2]; // this is either IPv4 as a 32 bit value, or IPv6 (which always contains a colon)
1041  if (numIp.contains(':')) { // IPv6
1042  if (!address.setAddress(numIp)) {
1043  qWarning() << "Invalid IPv6:" << numIp;
1044  return;
1045  }
1046  }
1047  else {
1048  address.setAddress(numIp.toUInt());
1049  }
1050 
1051  if (port == 0) { // Reverse DCC is indicated by a 0 port
1052  emit newEvent(new MessageEvent(Message::Error, e->network(), tr("Reverse DCC SEND not supported"), e->prefix(), e->target(), Message::None, e->timestamp()));
1053  return;
1054  }
1055  if (port < 1024) {
1056  qWarning() << "Privileged port requested:" << port; // FIXME ask user if this is ok
1057  }
1058 
1059 
1060  if (params.count() > 4) { // filesize is optional
1061  size = params[4].toULong();
1062  }
1063 
1064  // TODO: check if target is the right thing to use for the partner
1065  CoreTransfer *transfer = new CoreTransfer(Transfer::Receive, e->target(), filename, address, port, size, this);
1066  coreSession()->signalProxy()->synchronize(transfer);
1067  coreSession()->transferManager()->addTransfer(transfer);
1068  }
1069  else {
1070  emit newEvent(new MessageEvent(Message::Error, e->network(), tr("DCC %1 not supported").arg(cmd), e->prefix(), e->target(), Message::None, e->timestamp()));
1071  return;
1072  }
1073  }
1074 }
1075 
1076 
1078 {
1079  e->setReply(e->param().isNull() ? "" : e->param());
1080 }
1081 
1082 
1084 {
1085  e->setReply(QDateTime::currentDateTime().toString());
1086 }
1087 
1088 
1090 {
1091  e->setReply(QString("Quassel IRC %1 (built on %2) -- http://www.quassel-irc.org")
1092  .arg(Quassel::buildInfo().plainVersionString).arg(Quassel::buildInfo().buildDate));
1093 }