src/core/coresessioneventprocessor.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2015 by the Quassel Project                        *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
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   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) version 3.                                           *
   9  *                                                                         *
  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         *
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  19  ***************************************************************************/
  20
  21 #include "coresessioneventprocessor.h"
  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
  40 CoreSessionEventProcessor::CoreSessionEventProcessor(CoreSession *session)
  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
  49 bool CoreSessionEventProcessor::checkParamCount(IrcEvent *e, int minParams)
  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
  92 void CoreSessionEventProcessor::processIrcEventNumeric(IrcEventNumeric *e)
  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
 110 void CoreSessionEventProcessor::processIrcEventAuthenticate(IrcEvent *e)
 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
 141 void CoreSessionEventProcessor::processIrcEventCap(IrcEvent *e)
 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(1) == "NAK") {
 148             // CAP REQ sasl was denied
 149             coreNetwork(e)->putRawLine("CAP END");
 150         }
 151         else if (e->params().at(1) == "ACK") {
 152             if (e->params().at(2).startsWith("sasl")) { // Freenode (at least) sends "sasl " with a trailing space for some reason!
 153                 // FIXME use event
 154                 // if the current identity has a cert set, use SASL EXTERNAL
 155 #ifdef HAVE_SSL
 156                 if (!coreNetwork(e)->identityPtr()->sslCert().isNull()) {
 157                     coreNetwork(e)->putRawLine(coreNetwork(e)->serverEncode("AUTHENTICATE EXTERNAL"));
 158                 } else {
 159 #endif
 160                     // Only working with PLAIN atm, blowfish later
 161                     coreNetwork(e)->putRawLine(coreNetwork(e)->serverEncode("AUTHENTICATE PLAIN"));
 162 #ifdef HAVE_SSL
 163                 }
 164 #endif
 165             }
 166         }
 167     }
 168 }
 169
 170
 171 void CoreSessionEventProcessor::processIrcEventInvite(IrcEvent *e)
 172 {
 173     if (checkParamCount(e, 2)) {
 174         e->network()->updateNickFromMask(e->prefix());
 175     }
 176 }
 177
 178
 179 void CoreSessionEventProcessor::processIrcEventJoin(IrcEvent *e)
 180 {
 181     if (e->testFlag(EventManager::Fake)) // generated by handleEarlyNetsplitJoin
 182         return;
 183
 184     if (!checkParamCount(e, 1))
 185         return;
 186
 187     CoreNetwork *net = coreNetwork(e);
 188     QString channel = e->params()[0];
 189     IrcUser *ircuser = net->updateNickFromMask(e->prefix());
 190
 191     bool handledByNetsplit = false;
 192     foreach(Netsplit* n, _netsplits.value(e->network())) {
 193         handledByNetsplit = n->userJoined(e->prefix(), channel);
 194         if (handledByNetsplit)
 195             break;
 196     }
 197
 198     if (!handledByNetsplit)
 199         ircuser->joinChannel(channel);
 200     else
 201         e->setFlag(EventManager::Netsplit);
 202
 203     if (net->isMe(ircuser)) {
 204         net->setChannelJoined(channel);
 205         // FIXME use event
 206         net->putRawLine(net->serverEncode("MODE " + channel)); // we want to know the modes of the channel we just joined, so we ask politely
 207     }
 208 }
 209
 210
 211 void CoreSessionEventProcessor::lateProcessIrcEventKick(IrcEvent *e)
 212 {
 213     if (checkParamCount(e, 2)) {
 214         e->network()->updateNickFromMask(e->prefix());
 215         IrcUser *victim = e->network()->ircUser(e->params().at(1));
 216         if (victim) {
 217             victim->partChannel(e->params().at(0));
 218             //if(e->network()->isMe(victim)) e->network()->setKickedFromChannel(channel);
 219         }
 220     }
 221 }
 222
 223
 224 void CoreSessionEventProcessor::processIrcEventMode(IrcEvent *e)
 225 {
 226     if (!checkParamCount(e, 2))
 227         return;
 228
 229     if (e->network()->isChannelName(e->params().first())) {
 230         // Channel Modes
 231
 232         IrcChannel *channel = e->network()->ircChannel(e->params()[0]);
 233         if (!channel) {
 234             // we received mode information for a channel we're not in. that means probably we've just been kicked out or something like that
 235             // anyways: we don't have a place to store the data --> discard the info.
 236             return;
 237         }
 238
 239         QString modes = e->params()[1];
 240         bool add = true;
 241         int paramOffset = 2;
 242         for (int c = 0; c < modes.length(); c++) {
 243             if (modes[c] == '+') {
 244                 add = true;
 245                 continue;
 246             }
 247             if (modes[c] == '-') {
 248                 add = false;
 249                 continue;
 250             }
 251
 252             if (e->network()->prefixModes().contains(modes[c])) {
 253                 // user channel modes (op, voice, etc...)
 254                 if (paramOffset < e->params().count()) {
 255                     IrcUser *ircUser = e->network()->ircUser(e->params()[paramOffset]);
 256                     if (!ircUser) {
 257                         qWarning() << Q_FUNC_INFO << "Unknown IrcUser:" << e->params()[paramOffset];
 258                     }
 259                     else {
 260                         if (add) {
 261                             bool handledByNetsplit = false;
 262                             QHash<QString, Netsplit *> splits = _netsplits.value(e->network());
 263                             foreach(Netsplit* n, _netsplits.value(e->network())) {
 264                                 handledByNetsplit = n->userAlreadyJoined(ircUser->hostmask(), channel->name());
 265                                 if (handledByNetsplit) {
 266                                     n->addMode(ircUser->hostmask(), channel->name(), QString(modes[c]));
 267                                     break;
 268                                 }
 269                             }
 270                             if (!handledByNetsplit)
 271                                 channel->addUserMode(ircUser, QString(modes[c]));
 272                         }
 273                         else
 274                             channel->removeUserMode(ircUser, QString(modes[c]));
 275                     }
 276                 }
 277                 else {
 278                     qWarning() << "Received MODE with too few parameters:" << e->params();
 279                 }
 280                 ++paramOffset;
 281             }
 282             else {
 283                 // regular channel modes
 284                 QString value;
 285                 Network::ChannelModeType modeType = e->network()->channelModeType(modes[c]);
 286                 if (modeType == Network::A_CHANMODE || modeType == Network::B_CHANMODE || (modeType == Network::C_CHANMODE && add)) {
 287                     if (paramOffset < e->params().count()) {
 288                         value = e->params()[paramOffset];
 289                     }
 290                     else {
 291                         qWarning() << "Received MODE with too few parameters:" << e->params();
 292                     }
 293                     ++paramOffset;
 294                 }
 295
 296                 if (add)
 297                     channel->addChannelMode(modes[c], value);
 298                 else
 299                     channel->removeChannelMode(modes[c], value);
 300             }
 301         }
 302     }
 303     else {
 304         // pure User Modes
 305         IrcUser *ircUser = e->network()->newIrcUser(e->params().first());
 306         QString modeString(e->params()[1]);
 307         QString addModes;
 308         QString removeModes;
 309         bool add = false;
 310         for (int c = 0; c < modeString.count(); c++) {
 311             if (modeString[c] == '+') {
 312                 add = true;
 313                 continue;
 314             }
 315             if (modeString[c] == '-') {
 316                 add = false;
 317                 continue;
 318             }
 319             if (add)
 320                 addModes += modeString[c];
 321             else
 322                 removeModes += modeString[c];
 323         }
 324         if (!addModes.isEmpty())
 325             ircUser->addUserModes(addModes);
 326         if (!removeModes.isEmpty())
 327             ircUser->removeUserModes(removeModes);
 328
 329         if (e->network()->isMe(ircUser)) {
 330             coreNetwork(e)->updatePersistentModes(addModes, removeModes);
 331         }
 332     }
 333 }
 334
 335
 336 void CoreSessionEventProcessor::lateProcessIrcEventNick(IrcEvent *e)
 337 {
 338     if (checkParamCount(e, 1)) {
 339         IrcUser *ircuser = e->network()->updateNickFromMask(e->prefix());
 340         if (!ircuser) {
 341             qWarning() << Q_FUNC_INFO << "Unknown IrcUser!";
 342             return;
 343         }
 344         QString newnick = e->params().at(0);
 345         QString oldnick = ircuser->nick();
 346
 347         // the order is cruicial
 348         // otherwise the client would rename the buffer, see that the assigned ircuser doesn't match anymore
 349         // and remove the ircuser from the querybuffer leading to a wrong on/offline state
 350         ircuser->setNick(newnick);
 351         coreSession()->renameBuffer(e->networkId(), newnick, oldnick);
 352     }
 353 }
 354
 355
 356 void CoreSessionEventProcessor::lateProcessIrcEventPart(IrcEvent *e)
 357 {
 358     if (checkParamCount(e, 1)) {
 359         IrcUser *ircuser = e->network()->updateNickFromMask(e->prefix());
 360         if (!ircuser) {
 361             qWarning() << Q_FUNC_INFO<< "Unknown IrcUser!";
 362             return;
 363         }
 364         QString channel = e->params().at(0);
 365         ircuser->partChannel(channel);
 366         if (e->network()->isMe(ircuser))
 367             qobject_cast<CoreNetwork *>(e->network())->setChannelParted(channel);
 368     }
 369 }
 370
 371
 372 void CoreSessionEventProcessor::processIrcEventPing(IrcEvent *e)
 373 {
 374     QString param = e->params().count() ? e->params().first() : QString();
 375     // FIXME use events
 376     // Take priority so this won't get stuck behind other queued messages.
 377     coreNetwork(e)->putRawLine("PONG " + coreNetwork(e)->serverEncode(param), true);
 378 }
 379
 380
 381 void CoreSessionEventProcessor::processIrcEventPong(IrcEvent *e)
 382 {
 383     // the server is supposed to send back what we passed as param. and we send a timestamp
 384     // but using quote and whatnought one can send arbitrary pings, so we have to do some sanity checks
 385     if (checkParamCount(e, 2)) {
 386         QString timestamp = e->params().at(1);
 387         QTime sendTime = QTime::fromString(timestamp, "hh:mm:ss.zzz");
 388         if (sendTime.isValid())
 389             e->network()->setLatency(sendTime.msecsTo(QTime::currentTime()) / 2);
 390     }
 391 }
 392
 393
 394 void CoreSessionEventProcessor::processIrcEventQuit(IrcEvent *e)
 395 {
 396     IrcUser *ircuser = e->network()->updateNickFromMask(e->prefix());
 397     if (!ircuser)
 398         return;
 399
 400     QString msg;
 401     if (e->params().count() > 0)
 402         msg = e->params()[0];
 403
 404     // check if netsplit
 405     if (Netsplit::isNetsplit(msg)) {
 406         Netsplit *n;
 407         if (!_netsplits[e->network()].contains(msg)) {
 408             n = new Netsplit(e->network(), this);
 409             connect(n, SIGNAL(finished()), this, SLOT(handleNetsplitFinished()));
 410             connect(n, SIGNAL(netsplitJoin(Network*, QString, QStringList, QStringList, QString)),
 411                 this, SLOT(handleNetsplitJoin(Network*, QString, QStringList, QStringList, QString)));
 412             connect(n, SIGNAL(netsplitQuit(Network*, QString, QStringList, QString)),
 413                 this, SLOT(handleNetsplitQuit(Network*, QString, QStringList, QString)));
 414             connect(n, SIGNAL(earlyJoin(Network*, QString, QStringList, QStringList)),
 415                 this, SLOT(handleEarlyNetsplitJoin(Network*, QString, QStringList, QStringList)));
 416             _netsplits[e->network()].insert(msg, n);
 417         }
 418         else {
 419             n = _netsplits[e->network()][msg];
 420         }
 421         // add this user to the netsplit
 422         n->userQuit(e->prefix(), ircuser->channels(), msg);
 423         e->setFlag(EventManager::Netsplit);
 424     }
 425     // normal quit is handled in lateProcessIrcEventQuit()
 426 }
 427
 428
 429 void CoreSessionEventProcessor::lateProcessIrcEventQuit(IrcEvent *e)
 430 {
 431     if (e->testFlag(EventManager::Netsplit))
 432         return;
 433
 434     IrcUser *ircuser = e->network()->updateNickFromMask(e->prefix());
 435     if (!ircuser)
 436         return;
 437
 438     ircuser->quit();
 439 }
 440
 441
 442 void CoreSessionEventProcessor::processIrcEventTopic(IrcEvent *e)
 443 {
 444     if (checkParamCount(e, 2)) {
 445         e->network()->updateNickFromMask(e->prefix());
 446         IrcChannel *channel = e->network()->ircChannel(e->params().at(0));
 447         if (channel)
 448             channel->setTopic(e->params().at(1));
 449     }
 450 }
 451
 452
 453 #ifdef HAVE_QCA2
 454 void CoreSessionEventProcessor::processKeyEvent(KeyEvent *e)
 455 {
 456     if (!Cipher::neededFeaturesAvailable()) {
 457         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()));
 458         return;
 459     }
 460     CoreNetwork *net = qobject_cast<CoreNetwork*>(e->network());
 461     Cipher *c = net->cipher(e->target());
 462     if (!c) // happens when there is no CoreIrcChannel for the target (i.e. never?)
 463         return;
 464
 465     if (e->exchangeType() == KeyEvent::Init) {
 466         QByteArray pubKey = c->parseInitKeyX(e->key());
 467         if (pubKey.isEmpty()) {
 468             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()));
 469             return;
 470         } else {
 471             net->setCipherKey(e->target(), c->key());
 472             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()));
 473             QList<QByteArray> p;
 474             p << net->serverEncode(e->target()) << net->serverEncode("DH1080_FINISH ")+pubKey;
 475             net->putCmd("NOTICE", p);
 476         }
 477     } else {
 478         if (c->parseFinishKeyX(e->key())) {
 479             net->setCipherKey(e->target(), c->key());
 480             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()));
 481         } else {
 482             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()));
 483         }
 484     }
 485 }
 486 #endif
 487
 488
 489 /* RPL_WELCOME */
 490 void CoreSessionEventProcessor::processIrcEvent001(IrcEventNumeric *e)
 491 {
 492     e->network()->setCurrentServer(e->prefix());
 493     e->network()->setMyNick(e->target());
 494 }
 495
 496
 497 /* RPL_ISUPPORT */
 498 // TODO Complete 005 handling, also use sensible defaults for non-sent stuff
 499 void CoreSessionEventProcessor::processIrcEvent005(IrcEvent *e)
 500 {
 501     if (!checkParamCount(e, 1))
 502         return;
 503
 504     QString key, value;
 505     for (int i = 0; i < e->params().count() - 1; i++) {
 506         QString key = e->params()[i].section("=", 0, 0);
 507         QString value = e->params()[i].section("=", 1);
 508         e->network()->addSupport(key, value);
 509     }
 510
 511     /* determine our prefixes here to get an accurate result */
 512     e->network()->determinePrefixes();
 513 }
 514
 515
 516 /* RPL_UMODEIS - "<user_modes> [<user_mode_params>]" */
 517 void CoreSessionEventProcessor::processIrcEvent221(IrcEvent *)
 518 {
 519     // TODO: save information in network object
 520 }
 521
 522
 523 /* RPL_STATSCONN - "Highest connection cout: 8000 (7999 clients)" */
 524 void CoreSessionEventProcessor::processIrcEvent250(IrcEvent *)
 525 {
 526     // TODO: save information in network object
 527 }
 528
 529
 530 /* RPL_LOCALUSERS - "Current local user: 5024  Max: 7999 */
 531 void CoreSessionEventProcessor::processIrcEvent265(IrcEvent *)
 532 {
 533     // TODO: save information in network object
 534 }
 535
 536
 537 /* RPL_GLOBALUSERS - "Current global users: 46093  Max: 47650" */
 538 void CoreSessionEventProcessor::processIrcEvent266(IrcEvent *)
 539 {
 540     // TODO: save information in network object
 541 }
 542
 543
 544 /*
 545 WHOIS-Message:
 546    Replies 311 - 313, 317 - 319 are all replies generated in response to a WHOIS message.
 547   and 301 (RPL_AWAY)
 548               "<nick> :<away message>"
 549 WHO-Message:
 550    Replies 352 and 315 paired are used to answer a WHO message.
 551
 552 WHOWAS-Message:
 553    Replies 314 and 369 are responses to a WHOWAS message.
 554
 555 */
 556
 557 /* RPL_AWAY - "<nick> :<away message>" */
 558 void CoreSessionEventProcessor::processIrcEvent301(IrcEvent *e)
 559 {
 560     if (!checkParamCount(e, 2))
 561         return;
 562
 563     IrcUser *ircuser = e->network()->ircUser(e->params().at(0));
 564     if (ircuser) {
 565         ircuser->setAway(true);
 566         ircuser->setAwayMessage(e->params().at(1));
 567         //ircuser->setLastAwayMessage(now);
 568     }
 569 }
 570
 571
 572 /* RPL_UNAWAY - ":You are no longer marked as being away" */
 573 void CoreSessionEventProcessor::processIrcEvent305(IrcEvent *e)
 574 {
 575     IrcUser *me = e->network()->me();
 576     if (me)
 577         me->setAway(false);
 578
 579     if (e->network()->autoAwayActive()) {
 580         e->network()->setAutoAwayActive(false);
 581         e->setFlag(EventManager::Silent);
 582     }
 583 }
 584
 585
 586 /* RPL_NOWAWAY - ":You have been marked as being away" */
 587 void CoreSessionEventProcessor::processIrcEvent306(IrcEvent *e)
 588 {
 589     IrcUser *me = e->network()->me();
 590     if (me)
 591         me->setAway(true);
 592 }
 593
 594
 595 /* RPL_WHOISSERVICE - "<user> is registered nick" */
 596 void CoreSessionEventProcessor::processIrcEvent307(IrcEvent *e)
 597 {
 598     if (!checkParamCount(e, 1))
 599         return;
 600
 601     IrcUser *ircuser = e->network()->ircUser(e->params().at(0));
 602     if (ircuser)
 603         ircuser->setWhoisServiceReply(e->params().join(" "));
 604 }
 605
 606
 607 /* RPL_SUSERHOST - "<user> is available for help." */
 608 void CoreSessionEventProcessor::processIrcEvent310(IrcEvent *e)
 609 {
 610     if (!checkParamCount(e, 1))
 611         return;
 612
 613     IrcUser *ircuser = e->network()->ircUser(e->params().at(0));
 614     if (ircuser)
 615         ircuser->setSuserHost(e->params().join(" "));
 616 }
 617
 618
 619 /*  RPL_WHOISUSER - "<nick> <user> <host> * :<real name>" */
 620 void CoreSessionEventProcessor::processIrcEvent311(IrcEvent *e)
 621 {
 622     if (!checkParamCount(e, 3))
 623         return;
 624
 625     IrcUser *ircuser = e->network()->ircUser(e->params().at(0));
 626     if (ircuser) {
 627         ircuser->setUser(e->params().at(1));
 628         ircuser->setHost(e->params().at(2));
 629         ircuser->setRealName(e->params().last());
 630     }
 631 }
 632
 633
 634 /*  RPL_WHOISSERVER -  "<nick> <server> :<server info>" */
 635 void CoreSessionEventProcessor::processIrcEvent312(IrcEvent *e)
 636 {
 637     if (!checkParamCount(e, 2))
 638         return;
 639
 640     IrcUser *ircuser = e->network()->ircUser(e->params().at(0));
 641     if (ircuser)
 642         ircuser->setServer(e->params().at(1));
 643 }
 644
 645
 646 /*  RPL_WHOISOPERATOR - "<nick> :is an IRC operator" */
 647 void CoreSessionEventProcessor::processIrcEvent313(IrcEvent *e)
 648 {
 649     if (!checkParamCount(e, 1))
 650         return;
 651
 652     IrcUser *ircuser = e->network()->ircUser(e->params().at(0));
 653     if (ircuser)
 654         ircuser->setIrcOperator(e->params().last());
 655 }
 656
 657
 658 /*  RPL_ENDOFWHO: "<name> :End of WHO list" */
 659 void CoreSessionEventProcessor::processIrcEvent315(IrcEvent *e)
 660 {
 661     if (!checkParamCount(e, 1))
 662         return;
 663
 664     if (coreNetwork(e)->setAutoWhoDone(e->params()[0]))
 665         e->setFlag(EventManager::Silent);
 666 }
 667
 668
 669 /*  RPL_WHOISIDLE - "<nick> <integer> :seconds idle"
 670    (real life: "<nick> <integer> <integer> :seconds idle, signon time) */
 671 void CoreSessionEventProcessor::processIrcEvent317(IrcEvent *e)
 672 {
 673     if (!checkParamCount(e, 2))
 674         return;
 675
 676     QDateTime loginTime;
 677
 678     int idleSecs = e->params()[1].toInt();
 679     if (e->params().count() > 3) { // if we have more then 3 params we have the above mentioned "real life" situation
 680         int logintime = e->params()[2].toInt();
 681         loginTime = QDateTime::fromTime_t(logintime);
 682     }
 683
 684     IrcUser *ircuser = e->network()->ircUser(e->params()[0]);
 685     if (ircuser) {
 686         ircuser->setIdleTime(e->timestamp().addSecs(-idleSecs));
 687         if (loginTime.isValid())
 688             ircuser->setLoginTime(loginTime);
 689     }
 690 }
 691
 692
 693 /* RPL_LIST -  "<channel> <# visible> :<topic>" */
 694 void CoreSessionEventProcessor::processIrcEvent322(IrcEvent *e)
 695 {
 696     if (!checkParamCount(e, 1))
 697         return;
 698
 699     QString channelName;
 700     quint32 userCount = 0;
 701     QString topic;
 702
 703     switch (e->params().count()) {
 704     case 3:
 705         topic = e->params()[2];
 706     case 2:
 707         userCount = e->params()[1].toUInt();
 708     case 1:
 709         channelName = e->params()[0];
 710     default:
 711         break;
 712     }
 713     if (coreSession()->ircListHelper()->addChannel(e->networkId(), channelName, userCount, topic))
 714         e->stop();  // consumed by IrcListHelper, so don't further process/show this event
 715 }
 716
 717
 718 /* RPL_LISTEND ":End of LIST" */
 719 void CoreSessionEventProcessor::processIrcEvent323(IrcEvent *e)
 720 {
 721     if (!checkParamCount(e, 1))
 722         return;
 723
 724     if (coreSession()->ircListHelper()->endOfChannelList(e->networkId()))
 725         e->stop();  // consumed by IrcListHelper, so don't further process/show this event
 726 }
 727
 728
 729 /* RPL_CHANNELMODEIS - "<channel> <mode> <mode params>" */
 730 void CoreSessionEventProcessor::processIrcEvent324(IrcEvent *e)
 731 {
 732     processIrcEventMode(e);
 733 }
 734
 735
 736 /* RPL_NOTOPIC */
 737 void CoreSessionEventProcessor::processIrcEvent331(IrcEvent *e)
 738 {
 739     if (!checkParamCount(e, 1))
 740         return;
 741
 742     IrcChannel *chan = e->network()->ircChannel(e->params()[0]);
 743     if (chan)
 744         chan->setTopic(QString());
 745 }
 746
 747
 748 /* RPL_TOPIC */
 749 void CoreSessionEventProcessor::processIrcEvent332(IrcEvent *e)
 750 {
 751     if (!checkParamCount(e, 2))
 752         return;
 753
 754     IrcChannel *chan = e->network()->ircChannel(e->params()[0]);
 755     if (chan)
 756         chan->setTopic(e->params()[1]);
 757 }
 758
 759
 760 /*  RPL_WHOREPLY: "<channel> <user> <host> <server> <nick>
 761               ( "H" / "G" > ["*"] [ ( "@" / "+" ) ] :<hopcount> <real name>" */
 762 void CoreSessionEventProcessor::processIrcEvent352(IrcEvent *e)
 763 {
 764     if (!checkParamCount(e, 6))
 765         return;
 766
 767     QString channel = e->params()[0];
 768     IrcUser *ircuser = e->network()->ircUser(e->params()[4]);
 769     if (ircuser) {
 770         ircuser->setUser(e->params()[1]);
 771         ircuser->setHost(e->params()[2]);
 772
 773         bool away = e->params()[5].startsWith("G");
 774         ircuser->setAway(away);
 775         ircuser->setServer(e->params()[3]);
 776         ircuser->setRealName(e->params().last().section(" ", 1));
 777     }
 778
 779     if (coreNetwork(e)->isAutoWhoInProgress(channel))
 780         e->setFlag(EventManager::Silent);
 781 }
 782
 783
 784 /* RPL_NAMREPLY */
 785 void CoreSessionEventProcessor::processIrcEvent353(IrcEvent *e)
 786 {
 787     if (!checkParamCount(e, 3))
 788         return;
 789
 790     // param[0] is either "=", "*" or "@" indicating a public, private or secret channel
 791     // we don't use this information at the time beeing
 792     QString channelname = e->params()[1];
 793
 794     IrcChannel *channel = e->network()->ircChannel(channelname);
 795     if (!channel) {
 796         qWarning() << Q_FUNC_INFO << "Received unknown target channel:" << channelname;
 797         return;
 798     }
 799
 800     QStringList nicks;
 801     QStringList modes;
 802
 803     foreach(QString nick, e->params()[2].split(' ', QString::SkipEmptyParts)) {
 804         QString mode;
 805
 806         if (e->network()->prefixes().contains(nick[0])) {
 807             mode = e->network()->prefixToMode(nick[0]);
 808             nick = nick.mid(1);
 809         }
 810
 811         nicks << nick;
 812         modes << mode;
 813     }
 814
 815     channel->joinIrcUsers(nicks, modes);
 816 }
 817
 818
 819 /* ERR_ERRONEUSNICKNAME */
 820 void CoreSessionEventProcessor::processIrcEvent432(IrcEventNumeric *e)
 821 {
 822     if (!checkParamCount(e, 1))
 823         return;
 824
 825     QString errnick;
 826     if (e->params().count() < 2) {
 827         // handle unreal-ircd bug, where unreal ircd doesnt supply a TARGET in ERR_ERRONEUSNICKNAME during registration phase:
 828         // nick @@@
 829         // :irc.scortum.moep.net 432  @@@ :Erroneous Nickname: Illegal characters
 830         // correct server reply:
 831         // :irc.scortum.moep.net 432 * @@@ :Erroneous Nickname: Illegal characters
 832         e->params().prepend(e->target());
 833         e->setTarget("*");
 834     }
 835     errnick = e->params()[0];
 836
 837     tryNextNick(e, errnick, true /* erroneus */);
 838 }
 839
 840
 841 /* ERR_NICKNAMEINUSE */
 842 void CoreSessionEventProcessor::processIrcEvent433(IrcEventNumeric *e)
 843 {
 844     if (!checkParamCount(e, 1))
 845         return;
 846
 847     QString errnick = e->params().first();
 848
 849     // if there is a problem while connecting to the server -> we handle it
 850     // but only if our connection has not been finished yet...
 851     if (!e->network()->currentServer().isEmpty())
 852         return;
 853
 854     tryNextNick(e, errnick);
 855 }
 856
 857
 858 /* ERR_UNAVAILRESOURCE */
 859 void CoreSessionEventProcessor::processIrcEvent437(IrcEventNumeric *e)
 860 {
 861     if (!checkParamCount(e, 1))
 862         return;
 863
 864     QString errnick = e->params().first();
 865
 866     // if there is a problem while connecting to the server -> we handle it
 867     // but only if our connection has not been finished yet...
 868     if (!e->network()->currentServer().isEmpty())
 869         return;
 870
 871     if (!e->network()->isChannelName(errnick))
 872         tryNextNick(e, errnick);
 873 }
 874
 875
 876 /* template
 877 void CoreSessionEventProcessor::processIrcEvent(IrcEvent *e) {
 878   if(!checkParamCount(e, 1))
 879     return;
 880
 881 }
 882 */
 883
 884 /* Handle signals from Netsplit objects  */
 885
 886 void CoreSessionEventProcessor::handleNetsplitJoin(Network *net,
 887     const QString &channel,
 888     const QStringList &users,
 889     const QStringList &modes,
 890     const QString &quitMessage)
 891 {
 892     IrcChannel *ircChannel = net->ircChannel(channel);
 893     if (!ircChannel) {
 894         return;
 895     }
 896     QList<IrcUser *> ircUsers;
 897     QStringList newModes = modes;
 898     QStringList newUsers = users;
 899
 900     foreach(const QString &user, users) {
 901         IrcUser *iu = net->ircUser(nickFromMask(user));
 902         if (iu)
 903             ircUsers.append(iu);
 904         else { // the user already quit
 905             int idx = users.indexOf(user);
 906             newUsers.removeAt(idx);
 907             newModes.removeAt(idx);
 908         }
 909     }
 910
 911     ircChannel->joinIrcUsers(ircUsers, newModes);
 912     NetworkSplitEvent *event = new NetworkSplitEvent(EventManager::NetworkSplitJoin, net, channel, newUsers, quitMessage);
 913     emit newEvent(event);
 914 }
 915
 916
 917 void CoreSessionEventProcessor::handleNetsplitQuit(Network *net, const QString &channel, const QStringList &users, const QString &quitMessage)
 918 {
 919     NetworkSplitEvent *event = new NetworkSplitEvent(EventManager::NetworkSplitQuit, net, channel, users, quitMessage);
 920     emit newEvent(event);
 921     foreach(QString user, users) {
 922         IrcUser *iu = net->ircUser(nickFromMask(user));
 923         if (iu)
 924             iu->quit();
 925     }
 926 }
 927
 928
 929 void CoreSessionEventProcessor::handleEarlyNetsplitJoin(Network *net, const QString &channel, const QStringList &users, const QStringList &modes)
 930 {
 931     IrcChannel *ircChannel = net->ircChannel(channel);
 932     if (!ircChannel) {
 933         qDebug() << "handleEarlyNetsplitJoin(): channel " << channel << " invalid";
 934         return;
 935     }
 936     QList<NetworkEvent *> events;
 937     QList<IrcUser *> ircUsers;
 938     QStringList newModes = modes;
 939
 940     foreach(QString user, users) {
 941         IrcUser *iu = net->updateNickFromMask(user);
 942         if (iu) {
 943             ircUsers.append(iu);
 944             // fake event for scripts that consume join events
 945             events << new IrcEvent(EventManager::IrcEventJoin, net, iu->hostmask(), QStringList() << channel);
 946         }
 947         else {
 948             newModes.removeAt(users.indexOf(user));
 949         }
 950     }
 951     ircChannel->joinIrcUsers(ircUsers, newModes);
 952     foreach(NetworkEvent *event, events) {
 953         event->setFlag(EventManager::Fake); // ignore this in here!
 954         emit newEvent(event);
 955     }
 956 }
 957
 958
 959 void CoreSessionEventProcessor::handleNetsplitFinished()
 960 {
 961     Netsplit *n = qobject_cast<Netsplit *>(sender());
 962     Q_ASSERT(n);
 963     QHash<QString, Netsplit *> splithash  = _netsplits.take(n->network());
 964     splithash.remove(splithash.key(n));
 965     if (splithash.count())
 966         _netsplits[n->network()] = splithash;
 967     n->deleteLater();
 968 }
 969
 970
 971 void CoreSessionEventProcessor::destroyNetsplits(NetworkId netId)
 972 {
 973     Network *net = coreSession()->network(netId);
 974     if (!net)
 975         return;
 976
 977     QHash<QString, Netsplit *> splits = _netsplits.take(net);
 978     qDeleteAll(splits);
 979 }
 980
 981
 982 /*******************************/
 983 /******** CTCP HANDLING ********/
 984 /*******************************/
 985
 986 void CoreSessionEventProcessor::processCtcpEvent(CtcpEvent *e)
 987 {
 988     if (e->testFlag(EventManager::Self))
 989         return;  // ignore ctcp events generated by user input
 990
 991     if (e->type() != EventManager::CtcpEvent || e->ctcpType() != CtcpEvent::Query)
 992         return;
 993
 994     handle(e->ctcpCmd(), Q_ARG(CtcpEvent *, e));
 995 }
 996
 997
 998 void CoreSessionEventProcessor::defaultHandler(const QString &ctcpCmd, CtcpEvent *e)
 999 {
1000     // This handler is only there to avoid warnings for unknown CTCPs
1001     Q_UNUSED(e);
1002     Q_UNUSED(ctcpCmd);
1003 }
1004
1005
1006 void CoreSessionEventProcessor::handleCtcpAction(CtcpEvent *e)
1007 {
1008     // This handler is only there to feed CLIENTINFO
1009     Q_UNUSED(e);
1010 }
1011
1012
1013 void CoreSessionEventProcessor::handleCtcpClientinfo(CtcpEvent *e)
1014 {
1015     QStringList supportedHandlers;
1016     foreach(QString handler, providesHandlers())
1017     supportedHandlers << handler.toUpper();
1018     qSort(supportedHandlers);
1019     e->setReply(supportedHandlers.join(" "));
1020 }
1021
1022
1023 // http://www.irchelp.org/irchelp/rfc/ctcpspec.html
1024 // http://en.wikipedia.org/wiki/Direct_Client-to-Client
1025 void CoreSessionEventProcessor::handleCtcpDcc(CtcpEvent *e)
1026 {
1027     // DCC support is unfinished, experimental and potentially dangerous, so make it opt-in
1028     if (!Quassel::isOptionSet("enable-experimental-dcc")) {
1029         quInfo() << "DCC disabled, start core with --enable-experimental-dcc if you really want to try it out";
1030         return;
1031     }
1032
1033     // normal:  SEND <filename> <ip> <port> [<filesize>]
1034     // reverse: SEND <filename> <ip> 0 <filesize> <token>
1035     QStringList params = e->param().split(' ');
1036     if (params.count()) {
1037         QString cmd = params[0].toUpper();
1038         if (cmd == "SEND") {
1039             if (params.count() < 4) {
1040                 qWarning() << "Invalid DCC SEND request:" << e;  // TODO emit proper error to client
1041                 return;
1042             }
1043             QString filename = params[1];
1044             QHostAddress address;
1045             quint16 port = params[3].toUShort();
1046             quint64 size = 0;
1047             QString numIp = params[2]; // this is either IPv4 as a 32 bit value, or IPv6 (which always contains a colon)
1048             if (numIp.contains(':')) { // IPv6
1049                 if (!address.setAddress(numIp)) {
1050                     qWarning() << "Invalid IPv6:" << numIp;
1051                     return;
1052                 }
1053             }
1054             else {
1055                 address.setAddress(numIp.toUInt());
1056             }
1057
1058             if (port == 0) { // Reverse DCC is indicated by a 0 port
1059                 emit newEvent(new MessageEvent(Message::Error, e->network(), tr("Reverse DCC SEND not supported"), e->prefix(), e->target(), Message::None, e->timestamp()));
1060                 return;
1061             }
1062             if (port < 1024) {
1063                 qWarning() << "Privileged port requested:" << port; // FIXME ask user if this is ok
1064             }
1065
1066
1067             if (params.count() > 4) { // filesize is optional
1068                 size = params[4].toULong();
1069             }
1070
1071             // TODO: check if target is the right thing to use for the partner
1072             CoreTransfer *transfer = new CoreTransfer(Transfer::Receive, e->target(), filename, address, port, size, this);
1073             coreSession()->signalProxy()->synchronize(transfer);
1074             coreSession()->transferManager()->addTransfer(transfer);
1075         }
1076         else {
1077             emit newEvent(new MessageEvent(Message::Error, e->network(), tr("DCC %1 not supported").arg(cmd), e->prefix(), e->target(), Message::None, e->timestamp()));
1078             return;
1079         }
1080     }
1081 }
1082
1083
1084 void CoreSessionEventProcessor::handleCtcpPing(CtcpEvent *e)
1085 {
1086     e->setReply(e->param().isNull() ? "" : e->param());
1087 }
1088
1089
1090 void CoreSessionEventProcessor::handleCtcpTime(CtcpEvent *e)
1091 {
1092     e->setReply(QDateTime::currentDateTime().toString());
1093 }
1094
1095
1096 void CoreSessionEventProcessor::handleCtcpVersion(CtcpEvent *e)
1097 {
1098     e->setReply(QString("Quassel IRC %1 (built on %2) -- http://www.quassel-irc.org")
1099         .arg(Quassel::buildInfo().plainVersionString).arg(Quassel::buildInfo().commitDate));
1100 }