src/core/coresessioneventprocessor.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2014 by the Quassel Project                        *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   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.                                           *
   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         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
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  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
  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(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
 165 void CoreSessionEventProcessor::processIrcEventInvite(IrcEvent *e)
 166 {
 167     if (checkParamCount(e, 2)) {
 168         e->network()->updateNickFromMask(e->prefix());
 169     }
 170 }
 171
 172
 173 void CoreSessionEventProcessor::processIrcEventJoin(IrcEvent *e)
 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
 195         e->setFlag(EventManager::Netsplit);
 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
 205 void CoreSessionEventProcessor::lateProcessIrcEventKick(IrcEvent *e)
 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
 218 void CoreSessionEventProcessor::processIrcEventMode(IrcEvent *e)
 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
 330 void CoreSessionEventProcessor::lateProcessIrcEventNick(IrcEvent *e)
 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
 350 void CoreSessionEventProcessor::lateProcessIrcEventPart(IrcEvent *e)
 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
 366 void CoreSessionEventProcessor::processIrcEventPing(IrcEvent *e)
 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
 374 void CoreSessionEventProcessor::processIrcEventPong(IrcEvent *e)
 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
 387 void CoreSessionEventProcessor::processIrcEventQuit(IrcEvent *e)
 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);
 416         e->setFlag(EventManager::Netsplit);
 417     }
 418     // normal quit is handled in lateProcessIrcEventQuit()
 419 }
 420
 421
 422 void CoreSessionEventProcessor::lateProcessIrcEventQuit(IrcEvent *e)
 423 {
 424     if (e->testFlag(EventManager::Netsplit))
 425         return;
 426
 427     IrcUser *ircuser = e->network()->updateNickFromMask(e->prefix());
 428     if (!ircuser)
 429         return;
 430
 431     ircuser->quit();
 432 }
 433
 434
 435 void CoreSessionEventProcessor::processIrcEventTopic(IrcEvent *e)
 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 {
 449     if (!Cipher::neededFeaturesAvailable()) {
 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 */
 483 void CoreSessionEventProcessor::processIrcEvent001(IrcEventNumeric *e)
 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
 492 void CoreSessionEventProcessor::processIrcEvent005(IrcEvent *e)
 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>]" */
 510 void CoreSessionEventProcessor::processIrcEvent221(IrcEvent *)
 511 {
 512     // TODO: save information in network object
 513 }
 514
 515
 516 /* RPL_STATSCONN - "Highest connection cout: 8000 (7999 clients)" */
 517 void CoreSessionEventProcessor::processIrcEvent250(IrcEvent *)
 518 {
 519     // TODO: save information in network object
 520 }
 521
 522
 523 /* RPL_LOCALUSERS - "Current local user: 5024  Max: 7999 */
 524 void CoreSessionEventProcessor::processIrcEvent265(IrcEvent *)
 525 {
 526     // TODO: save information in network object
 527 }
 528
 529
 530 /* RPL_GLOBALUSERS - "Current global users: 46093  Max: 47650" */
 531 void CoreSessionEventProcessor::processIrcEvent266(IrcEvent *)
 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>" */
 551 void CoreSessionEventProcessor::processIrcEvent301(IrcEvent *e)
 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" */
 566 void CoreSessionEventProcessor::processIrcEvent305(IrcEvent *e)
 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);
 574         e->setFlag(EventManager::Silent);
 575     }
 576 }
 577
 578
 579 /* RPL_NOWAWAY - ":You have been marked as being away" */
 580 void CoreSessionEventProcessor::processIrcEvent306(IrcEvent *e)
 581 {
 582     IrcUser *me = e->network()->me();
 583     if (me)
 584         me->setAway(true);
 585 }
 586
 587
 588 /* RPL_WHOISSERVICE - "<user> is registered nick" */
 589 void CoreSessionEventProcessor::processIrcEvent307(IrcEvent *e)
 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." */
 601 void CoreSessionEventProcessor::processIrcEvent310(IrcEvent *e)
 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>" */
 613 void CoreSessionEventProcessor::processIrcEvent311(IrcEvent *e)
 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>" */
 628 void CoreSessionEventProcessor::processIrcEvent312(IrcEvent *e)
 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" */
 640 void CoreSessionEventProcessor::processIrcEvent313(IrcEvent *e)
 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" */
 652 void CoreSessionEventProcessor::processIrcEvent315(IrcEvent *e)
 653 {
 654     if (!checkParamCount(e, 1))
 655         return;
 656
 657     if (coreNetwork(e)->setAutoWhoDone(e->params()[0]))
 658         e->setFlag(EventManager::Silent);
 659 }
 660
 661
 662 /*  RPL_WHOISIDLE - "<nick> <integer> :seconds idle"
 663    (real life: "<nick> <integer> <integer> :seconds idle, signon time) */
 664 void CoreSessionEventProcessor::processIrcEvent317(IrcEvent *e)
 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>" */
 687 void CoreSessionEventProcessor::processIrcEvent322(IrcEvent *e)
 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" */
 712 void CoreSessionEventProcessor::processIrcEvent323(IrcEvent *e)
 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>" */
 723 void CoreSessionEventProcessor::processIrcEvent324(IrcEvent *e)
 724 {
 725     processIrcEventMode(e);
 726 }
 727
 728
 729 /* RPL_NOTOPIC */
 730 void CoreSessionEventProcessor::processIrcEvent331(IrcEvent *e)
 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 */
 742 void CoreSessionEventProcessor::processIrcEvent332(IrcEvent *e)
 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>" */
 755 void CoreSessionEventProcessor::processIrcEvent352(IrcEvent *e)
 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))
 773         e->setFlag(EventManager::Silent);
 774 }
 775
 776
 777 /* RPL_NAMREPLY */
 778 void CoreSessionEventProcessor::processIrcEvent353(IrcEvent *e)
 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 */
 813 void CoreSessionEventProcessor::processIrcEvent432(IrcEventNumeric *e)
 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 */
 835 void CoreSessionEventProcessor::processIrcEvent433(IrcEventNumeric *e)
 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 */
 852 void CoreSessionEventProcessor::processIrcEvent437(IrcEventNumeric *e)
 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
 879 void CoreSessionEventProcessor::handleNetsplitJoin(Network *net,
 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
 952 void CoreSessionEventProcessor::handleNetsplitFinished()
 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
 964 void CoreSessionEventProcessor::destroyNetsplits(NetworkId netId)
 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
 979 void CoreSessionEventProcessor::processCtcpEvent(CtcpEvent *e)
 980 {
 981     if (e->testFlag(EventManager::Self))
 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
 999 void CoreSessionEventProcessor::handleCtcpAction(CtcpEvent *e)
1000 {
1001     // This handler is only there to feed CLIENTINFO
1002     Q_UNUSED(e);
1003 }
1004
1005
1006 void CoreSessionEventProcessor::handleCtcpClientinfo(CtcpEvent *e)
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
1018 void CoreSessionEventProcessor::handleCtcpDcc(CtcpEvent *e)
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
1077 void CoreSessionEventProcessor::handleCtcpPing(CtcpEvent *e)
1078 {
1079     e->setReply(e->param().isNull() ? "" : e->param());
1080 }
1081
1082
1083 void CoreSessionEventProcessor::handleCtcpTime(CtcpEvent *e)
1084 {
1085     e->setReply(QDateTime::currentDateTime().toString());
1086 }
1087
1088
1089 void CoreSessionEventProcessor::handleCtcpVersion(CtcpEvent *e)
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 }