src/core/coresession.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2019 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  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
  19  ***************************************************************************/
  20
  21 #include "coresession.h"
  22
  23 #include <utility>
  24
  25 #include <QtScript>
  26
  27 #include "core.h"
  28 #include "corebacklogmanager.h"
  29 #include "corebuffersyncer.h"
  30 #include "corebufferviewmanager.h"
  31 #include "coredccconfig.h"
  32 #include "coreeventmanager.h"
  33 #include "coreidentity.h"
  34 #include "coreignorelistmanager.h"
  35 #include "coreinfo.h"
  36 #include "coreirclisthelper.h"
  37 #include "corenetwork.h"
  38 #include "corenetworkconfig.h"
  39 #include "coresessioneventprocessor.h"
  40 #include "coretransfermanager.h"
  41 #include "coreuserinputhandler.h"
  42 #include "coreusersettings.h"
  43 #include "ctcpparser.h"
  44 #include "eventstringifier.h"
  45 #include "internalpeer.h"
  46 #include "ircchannel.h"
  47 #include "ircparser.h"
  48 #include "ircuser.h"
  49 #include "messageevent.h"
  50 #include "remotepeer.h"
  51 #include "storage.h"
  52 #include "util.h"
  53
  54 class ProcessMessagesEvent : public QEvent
  55 {
  56 public:
  57     ProcessMessagesEvent()
  58         : QEvent(QEvent::User)
  59     {}
  60 };
  61
  62 CoreSession::CoreSession(UserId uid, bool restoreState, bool strictIdentEnabled, QObject* parent)
  63     : QObject(parent)
  64     , _user(uid)
  65     , _strictIdentEnabled(strictIdentEnabled)
  66     , _signalProxy(new SignalProxy(SignalProxy::Server, this))
  67     , _aliasManager(this)
  68     , _bufferSyncer(new CoreBufferSyncer(this))
  69     , _backlogManager(new CoreBacklogManager(this))
  70     , _bufferViewManager(new CoreBufferViewManager(_signalProxy, this))
  71     , _dccConfig(new CoreDccConfig(this))
  72     , _ircListHelper(new CoreIrcListHelper(this))
  73     , _networkConfig(new CoreNetworkConfig("GlobalNetworkConfig", this))
  74     , _coreInfo(new CoreInfo(this))
  75     , _transferManager(new CoreTransferManager(this))
  76     , _eventManager(new CoreEventManager(this))
  77     , _eventStringifier(new EventStringifier(this))
  78     , _sessionEventProcessor(new CoreSessionEventProcessor(this))
  79     , _ctcpParser(new CtcpParser(this))
  80     , _ircParser(new IrcParser(this))
  81     , scriptEngine(new QScriptEngine(this))
  82     , _processMessages(false)
  83     , _ignoreListManager(this)
  84     , _highlightRuleManager(this)
  85 {
  86     SignalProxy* p = signalProxy();
  87     p->setHeartBeatInterval(30);
  88     p->setMaxHeartBeatCount(60);  // 30 mins until we throw a dead socket out
  89
  90     connect(p, &SignalProxy::peerRemoved, this, &CoreSession::removeClient);
  91
  92     connect(p, &SignalProxy::connected, this, &CoreSession::clientsConnected);
  93     connect(p, &SignalProxy::disconnected, this, &CoreSession::clientsDisconnected);
  94
  95     p->attachSlot(SIGNAL(sendInput(BufferInfo,QString)), this, &CoreSession::msgFromClient);
  96     p->attachSignal(this, &CoreSession::displayMsg);
  97     p->attachSignal(this, &CoreSession::displayStatusMsg);
  98
  99     p->attachSignal(this, &CoreSession::identityCreated);
 100     p->attachSignal(this, &CoreSession::identityRemoved);
 101     p->attachSlot(SIGNAL(createIdentity(Identity,QVariantMap)), this, selectOverload<const Identity&, const QVariantMap&>(&CoreSession::createIdentity));
 102     p->attachSlot(SIGNAL(removeIdentity(IdentityId)), this, &CoreSession::removeIdentity);
 103
 104     p->attachSignal(this, &CoreSession::networkCreated);
 105     p->attachSignal(this, &CoreSession::networkRemoved);
 106     p->attachSlot(SIGNAL(createNetwork(NetworkInfo,QStringList)), this,&CoreSession::createNetwork);
 107     p->attachSlot(SIGNAL(removeNetwork(NetworkId)), this, &CoreSession::removeNetwork);
 108
 109     p->attachSlot(SIGNAL(changePassword(PeerPtr,QString,QString,QString)), this, &CoreSession::changePassword);
 110     p->attachSignal(this, &CoreSession::passwordChanged);
 111
 112     p->attachSlot(SIGNAL(kickClient(int)), this, &CoreSession::kickClient);
 113     p->attachSignal(this, &CoreSession::disconnectFromCore);
 114
 115     QVariantMap data;
 116     data["quasselVersion"] = Quassel::buildInfo().fancyVersionString;
 117     data["quasselBuildDate"] = Quassel::buildInfo().commitDate;  // "BuildDate" for compatibility
 118     data["startTime"] = Core::startTime();
 119     data["sessionConnectedClients"] = 0;
 120     _coreInfo->setCoreData(data);
 121
 122     loadSettings();
 123     initScriptEngine();
 124
 125     eventManager()->registerObject(ircParser(), EventManager::NormalPriority);
 126     eventManager()->registerObject(sessionEventProcessor(), EventManager::HighPriority);  // needs to process events *before* the stringifier!
 127     eventManager()->registerObject(ctcpParser(), EventManager::NormalPriority);
 128     eventManager()->registerObject(eventStringifier(), EventManager::NormalPriority);
 129     eventManager()->registerObject(this, EventManager::LowPriority);  // for sending MessageEvents to the client
 130     // some events need to be handled after msg generation
 131     eventManager()->registerObject(sessionEventProcessor(), EventManager::LowPriority, "lateProcess");
 132     eventManager()->registerObject(ctcpParser(), EventManager::LowPriority, "send");
 133
 134     // periodically save our session state
 135     connect(Core::syncTimer(), &QTimer::timeout, this, &CoreSession::saveSessionState);
 136
 137     p->synchronize(_bufferSyncer);
 138     p->synchronize(&aliasManager());
 139     p->synchronize(_backlogManager);
 140     p->synchronize(dccConfig());
 141     p->synchronize(ircListHelper());
 142     p->synchronize(networkConfig());
 143     p->synchronize(_coreInfo);
 144     p->synchronize(&_ignoreListManager);
 145     p->synchronize(&_highlightRuleManager);
 146     // Listen to network removed events
 147     connect(this, &CoreSession::networkRemoved, &_highlightRuleManager, &HighlightRuleManager::networkRemoved);
 148     p->synchronize(transferManager());
 149     // Restore session state
 150     if (restoreState)
 151         restoreSessionState();
 152
 153     emit initialized();
 154 }
 155
 156 void CoreSession::shutdown()
 157 {
 158     saveSessionState();
 159
 160     // Request disconnect from all connected networks in parallel, and wait until every network
 161     // has emitted the disconnected() signal before deleting the session itself
 162     for (CoreNetwork* net : _networks.values()) {
 163         if (net->socketState() != QAbstractSocket::UnconnectedState) {
 164             _networksPendingDisconnect.insert(net->networkId());
 165             connect(net, &CoreNetwork::disconnected, this, &CoreSession::onNetworkDisconnected);
 166             net->shutdown();
 167         }
 168     }
 169
 170     if (_networksPendingDisconnect.isEmpty()) {
 171         // Nothing to do, suicide so the core can shut down
 172         deleteLater();
 173     }
 174 }
 175
 176 void CoreSession::onNetworkDisconnected(NetworkId networkId)
 177 {
 178     _networksPendingDisconnect.remove(networkId);
 179     if (_networksPendingDisconnect.isEmpty()) {
 180         // We're done, suicide so the core can shut down
 181         deleteLater();
 182     }
 183 }
 184
 185 CoreNetwork* CoreSession::network(NetworkId id) const
 186 {
 187     if (_networks.contains(id))
 188         return _networks[id];
 189     return nullptr;
 190 }
 191
 192 CoreIdentity* CoreSession::identity(IdentityId id) const
 193 {
 194     if (_identities.contains(id))
 195         return _identities[id];
 196     return nullptr;
 197 }
 198
 199 void CoreSession::loadSettings()
 200 {
 201     CoreUserSettings s(user());
 202
 203     // migrate to db
 204     QList<IdentityId> ids = s.identityIds();
 205     QList<NetworkInfo> networkInfos = Core::networks(user());
 206     for (IdentityId id : ids) {
 207         CoreIdentity identity(s.identity(id));
 208         IdentityId newId = Core::createIdentity(user(), identity);
 209         QList<NetworkInfo>::iterator networkIter = networkInfos.begin();
 210         while (networkIter != networkInfos.end()) {
 211             if (networkIter->identity == id) {
 212                 networkIter->identity = newId;
 213                 Core::updateNetwork(user(), *networkIter);
 214                 networkIter = networkInfos.erase(networkIter);
 215             }
 216             else {
 217                 ++networkIter;
 218             }
 219         }
 220         s.removeIdentity(id);
 221     }
 222     // end of migration
 223
 224     for (const CoreIdentity& identity : Core::identities(user())) {
 225         createIdentity(identity);
 226     }
 227
 228     for (const NetworkInfo& info : Core::networks(user())) {
 229         createNetwork(info);
 230     }
 231 }
 232
 233 void CoreSession::saveSessionState() const
 234 {
 235     _bufferSyncer->storeDirtyIds();
 236     _bufferViewManager->saveBufferViews();
 237     _networkConfig->save();
 238 }
 239
 240 void CoreSession::restoreSessionState()
 241 {
 242     QList<NetworkId> nets = Core::connectedNetworks(user());
 243     CoreNetwork* net = nullptr;
 244     for (NetworkId id :  nets) {
 245         net = network(id);
 246         Q_ASSERT(net);
 247         net->connectToIrc();
 248     }
 249 }
 250
 251 void CoreSession::addClient(RemotePeer* peer)
 252 {
 253     signalProxy()->setTargetPeer(peer);
 254
 255     peer->dispatch(sessionState());
 256     signalProxy()->addPeer(peer);
 257     _coreInfo->setConnectedClientData(signalProxy()->peerCount(), signalProxy()->peerData());
 258
 259     signalProxy()->setTargetPeer(nullptr);
 260 }
 261
 262 void CoreSession::addClient(InternalPeer* peer)
 263 {
 264     signalProxy()->addPeer(peer);
 265     emit sessionStateReceived(sessionState());
 266 }
 267
 268 void CoreSession::removeClient(Peer* peer)
 269 {
 270     auto* p = qobject_cast<RemotePeer*>(peer);
 271     if (p)
 272         qInfo() << qPrintable(tr("Client")) << p->description() << qPrintable(tr("disconnected (UserId: %1).").arg(user().toInt()));
 273     _coreInfo->setConnectedClientData(signalProxy()->peerCount(), signalProxy()->peerData());
 274 }
 275
 276 QHash<QString, QString> CoreSession::persistentChannels(NetworkId id) const
 277 {
 278     return Core::persistentChannels(user(), id);
 279 }
 280
 281 QHash<QString, QByteArray> CoreSession::bufferCiphers(NetworkId id) const
 282 {
 283     return Core::bufferCiphers(user(), id);
 284 }
 285
 286 void CoreSession::setBufferCipher(NetworkId id, const QString& bufferName, const QByteArray& cipher) const
 287 {
 288     Core::setBufferCipher(user(), id, bufferName, cipher);
 289 }
 290
 291 // FIXME switch to BufferId
 292 void CoreSession::msgFromClient(BufferInfo bufinfo, QString msg)
 293 {
 294     CoreNetwork* net = network(bufinfo.networkId());
 295     if (net) {
 296         net->userInput(bufinfo, msg);
 297     }
 298     else {
 299         qWarning() << "Trying to send to unconnected network:" << msg;
 300     }
 301 }
 302
 303 // ALL messages coming pass through these functions before going to the GUI.
 304 // So this is the perfect place for storing the backlog and log stuff.
 305 void CoreSession::recvMessageFromServer(RawMessage msg)
 306 {
 307     // U+FDD0 and U+FDD1 are special characters for Qt's text engine, specifically they mark the boundaries of
 308     // text frames in a QTextDocument. This might lead to problems in widgets displaying QTextDocuments (such as
 309     // KDE's notifications), hence we remove those just to be safe.
 310     msg.text.remove(QChar(0xfdd0)).remove(QChar(0xfdd1));
 311
 312     // check for HardStrictness ignore
 313     CoreNetwork* currentNetwork = network(msg.networkId);
 314     QString networkName = currentNetwork ? currentNetwork->networkName() : QString("");
 315     if (_ignoreListManager.match(msg, networkName) == IgnoreListManager::HardStrictness)
 316         return;
 317
 318     if (currentNetwork && _highlightRuleManager.match(msg, currentNetwork->myNick(), currentNetwork->identityPtr()->nicks()))
 319         msg.flags |= Message::Flag::Highlight;
 320
 321     _messageQueue << std::move(msg);
 322     if (!_processMessages) {
 323         _processMessages = true;
 324         QCoreApplication::postEvent(this, new ProcessMessagesEvent());
 325     }
 326 }
 327
 328 void CoreSession::recvStatusMsgFromServer(QString msg)
 329 {
 330     auto* net = qobject_cast<CoreNetwork*>(sender());
 331     Q_ASSERT(net);
 332     emit displayStatusMsg(net->networkName(), std::move(msg));
 333 }
 334
 335 void CoreSession::processMessageEvent(MessageEvent* event)
 336 {
 337     recvMessageFromServer(RawMessage{
 338         event->networkId(),
 339         event->msgType(),
 340         event->bufferType(),
 341         event->target().isNull() ? "" : event->target(),
 342         event->text().isNull() ? "" : event->text(),
 343         event->sender().isNull() ? "" : event->sender(),
 344         event->msgFlags()
 345     });
 346 }
 347
 348 QList<BufferInfo> CoreSession::buffers() const
 349 {
 350     return Core::requestBuffers(user());
 351 }
 352
 353 void CoreSession::customEvent(QEvent* event)
 354 {
 355     if (event->type() != QEvent::User)
 356         return;
 357
 358     processMessages();
 359     event->accept();
 360 }
 361
 362 void CoreSession::processMessages()
 363 {
 364     if (_messageQueue.count() == 1) {
 365         const RawMessage& rawMsg = _messageQueue.first();
 366         bool createBuffer = !(rawMsg.flags & Message::Redirected);
 367         BufferInfo bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, rawMsg.bufferType, rawMsg.target, createBuffer);
 368         if (!bufferInfo.isValid()) {
 369             Q_ASSERT(!createBuffer);
 370             bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, BufferInfo::StatusBuffer, "");
 371         }
 372         Message msg(bufferInfo,
 373                     rawMsg.type,
 374                     rawMsg.text,
 375                     rawMsg.sender,
 376                     senderPrefixes(rawMsg.sender, bufferInfo),
 377                     realName(rawMsg.sender, rawMsg.networkId),
 378                     avatarUrl(rawMsg.sender, rawMsg.networkId),
 379                     rawMsg.flags);
 380         if (Core::storeMessage(msg))
 381             emit displayMsg(msg);
 382     }
 383     else {
 384         QHash<NetworkId, QHash<QString, BufferInfo>> bufferInfoCache;
 385         MessageList messages;
 386         QList<RawMessage> redirectedMessages;  // list of Messages which don't enforce a buffer creation
 387         BufferInfo bufferInfo;
 388         for (int i = 0; i < _messageQueue.count(); i++) {
 389             const RawMessage& rawMsg = _messageQueue.at(i);
 390             if (bufferInfoCache.contains(rawMsg.networkId) && bufferInfoCache[rawMsg.networkId].contains(rawMsg.target)) {
 391                 bufferInfo = bufferInfoCache[rawMsg.networkId][rawMsg.target];
 392             }
 393             else {
 394                 bool createBuffer = !(rawMsg.flags & Message::Redirected);
 395                 bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, rawMsg.bufferType, rawMsg.target, createBuffer);
 396                 if (!bufferInfo.isValid()) {
 397                     Q_ASSERT(!createBuffer);
 398                     redirectedMessages << rawMsg;
 399                     continue;
 400                 }
 401                 bufferInfoCache[rawMsg.networkId][rawMsg.target] = bufferInfo;
 402             }
 403             Message msg(bufferInfo,
 404                         rawMsg.type,
 405                         rawMsg.text,
 406                         rawMsg.sender,
 407                         senderPrefixes(rawMsg.sender, bufferInfo),
 408                         realName(rawMsg.sender, rawMsg.networkId),
 409                         avatarUrl(rawMsg.sender, rawMsg.networkId),
 410                         rawMsg.flags);
 411             messages << msg;
 412         }
 413
 414         // recheck if there exists a buffer to store a redirected message in
 415         for (int i = 0; i < redirectedMessages.count(); i++) {
 416             const RawMessage& rawMsg = redirectedMessages.at(i);
 417             if (bufferInfoCache.contains(rawMsg.networkId) && bufferInfoCache[rawMsg.networkId].contains(rawMsg.target)) {
 418                 bufferInfo = bufferInfoCache[rawMsg.networkId][rawMsg.target];
 419             }
 420             else {
 421                 // no luck -> we store them in the StatusBuffer
 422                 bufferInfo = Core::bufferInfo(user(), rawMsg.networkId, BufferInfo::StatusBuffer, "");
 423                 // add the StatusBuffer to the Cache in case there are more Messages for the original target
 424                 bufferInfoCache[rawMsg.networkId][rawMsg.target] = bufferInfo;
 425             }
 426             Message msg(bufferInfo,
 427                         rawMsg.type,
 428                         rawMsg.text,
 429                         rawMsg.sender,
 430                         senderPrefixes(rawMsg.sender, bufferInfo),
 431                         realName(rawMsg.sender, rawMsg.networkId),
 432                         avatarUrl(rawMsg.sender, rawMsg.networkId),
 433                         rawMsg.flags);
 434             messages << msg;
 435         }
 436
 437         if (Core::storeMessages(messages)) {
 438             // FIXME: extend protocol to a displayMessages(MessageList)
 439             for (int i = 0; i < messages.count(); i++) {
 440                 emit displayMsg(messages[i]);
 441             }
 442         }
 443     }
 444     _processMessages = false;
 445     _messageQueue.clear();
 446 }
 447
 448 QString CoreSession::senderPrefixes(const QString& sender, const BufferInfo& bufferInfo) const
 449 {
 450     CoreNetwork* currentNetwork = network(bufferInfo.networkId());
 451     if (!currentNetwork) {
 452         return {};
 453     }
 454
 455     if (bufferInfo.type() != BufferInfo::ChannelBuffer) {
 456         return {};
 457     }
 458
 459     IrcChannel* currentChannel = currentNetwork->ircChannel(bufferInfo.bufferName());
 460     if (!currentChannel) {
 461         return {};
 462     }
 463
 464     const QString modes = currentChannel->userModes(nickFromMask(sender).toLower());
 465     return currentNetwork->modesToPrefixes(modes);
 466 }
 467
 468 QString CoreSession::realName(const QString& sender, NetworkId networkId) const
 469 {
 470     CoreNetwork* currentNetwork = network(networkId);
 471     if (!currentNetwork) {
 472         return {};
 473     }
 474
 475     IrcUser* currentUser = currentNetwork->ircUser(nickFromMask(sender));
 476     if (!currentUser) {
 477         return {};
 478     }
 479
 480     return currentUser->realName();
 481 }
 482
 483 QString CoreSession::avatarUrl(const QString& sender, NetworkId networkId) const
 484 {
 485     Q_UNUSED(sender);
 486     Q_UNUSED(networkId);
 487     // Currently we do not have a way to retrieve this value yet.
 488     //
 489     // This likely will require implementing IRCv3's METADATA spec.
 490     // See https://ircv3.net/irc/
 491     // And https://blog.irccloud.com/avatars/
 492     return "";
 493 }
 494
 495 Protocol::SessionState CoreSession::sessionState() const
 496 {
 497     QVariantList bufferInfos;
 498     QVariantList networkIds;
 499     QVariantList identities;
 500
 501     for (const BufferInfo& id : buffers()) {
 502         bufferInfos << QVariant::fromValue(id);
 503     }
 504     for (const NetworkId& id : _networks.keys()) {
 505         networkIds << QVariant::fromValue(id);
 506     }
 507     for (const Identity* i : _identities.values()) {
 508         identities << QVariant::fromValue(*i);
 509     }
 510
 511     return Protocol::SessionState(identities, bufferInfos, networkIds);
 512 }
 513
 514 void CoreSession::initScriptEngine()
 515 {
 516     signalProxy()->attachSlot(SIGNAL(scriptRequest(QString)), this, &CoreSession::scriptRequest);
 517     signalProxy()->attachSignal(this, &CoreSession::scriptResult);
 518
 519     // FIXME
 520     // QScriptValue storage_ = scriptEngine->newQObject(storage);
 521     // scriptEngine->globalObject().setProperty("storage", storage_);
 522 }
 523
 524 void CoreSession::scriptRequest(QString script)
 525 {
 526     emit scriptResult(scriptEngine->evaluate(script).toString());
 527 }
 528
 529 /*** Identity Handling ***/
 530 void CoreSession::createIdentity(const Identity& identity, const QVariantMap& additional)
 531 {
 532 #ifndef HAVE_SSL
 533     Q_UNUSED(additional)
 534 #endif
 535
 536     CoreIdentity coreIdentity(identity);
 537 #ifdef HAVE_SSL
 538     if (additional.contains("KeyPem"))
 539         coreIdentity.setSslKey(additional["KeyPem"].toByteArray());
 540     if (additional.contains("CertPem"))
 541         coreIdentity.setSslCert(additional["CertPem"].toByteArray());
 542 #endif
 543     qDebug() << Q_FUNC_INFO;
 544     IdentityId id = Core::createIdentity(user(), coreIdentity);
 545     if (!id.isValid())
 546         return;
 547     else
 548         createIdentity(coreIdentity);
 549 }
 550
 551 const QString CoreSession::strictCompliantIdent(const CoreIdentity* identity)
 552 {
 553     if (_strictIdentEnabled) {
 554         // Strict mode enabled: only allow the user's Quassel username as an ident
 555         return Core::instance()->strictSysIdent(_user);
 556     }
 557     else {
 558         // Strict mode disabled: allow any identity specified
 559         return identity->ident();
 560     }
 561 }
 562
 563 void CoreSession::createIdentity(const CoreIdentity& identity)
 564 {
 565     auto* coreIdentity = new CoreIdentity(identity, this);
 566     _identities[identity.id()] = coreIdentity;
 567     // CoreIdentity has its own synchronize method since its "private" sslManager needs to be synced as well
 568     coreIdentity->synchronize(signalProxy());
 569     connect(coreIdentity, &SyncableObject::updated, this, &CoreSession::updateIdentityBySender);
 570     emit identityCreated(*coreIdentity);
 571 }
 572
 573 void CoreSession::updateIdentityBySender()
 574 {
 575     auto* identity = qobject_cast<CoreIdentity*>(sender());
 576     if (!identity)
 577         return;
 578     Core::updateIdentity(user(), *identity);
 579 }
 580
 581 void CoreSession::removeIdentity(IdentityId id)
 582 {
 583     CoreIdentity* identity = _identities.take(id);
 584     if (identity) {
 585         emit identityRemoved(id);
 586         Core::removeIdentity(user(), id);
 587         identity->deleteLater();
 588     }
 589 }
 590
 591 /*** Network Handling ***/
 592
 593 void CoreSession::createNetwork(const NetworkInfo& info_, const QStringList& persistentChans)
 594 {
 595     NetworkInfo info = info_;
 596     int id;
 597
 598     if (!info.networkId.isValid())
 599         Core::createNetwork(user(), info);
 600
 601     if (!info.networkId.isValid()) {
 602         qWarning() << qPrintable(
 603             tr("CoreSession::createNetwork(): Got invalid networkId from Core when trying to create network %1!").arg(info.networkName));
 604         return;
 605     }
 606
 607     id = info.networkId.toInt();
 608     if (!_networks.contains(id)) {
 609         // create persistent chans
 610         QRegExp rx(R"(\s*(\S+)(?:\s*(\S+))?\s*)");
 611         for (const QString& channel : persistentChans) {
 612             if (!rx.exactMatch(channel)) {
 613                 qWarning() << QString("Invalid persistent channel declaration: %1").arg(channel);
 614                 continue;
 615             }
 616             Core::bufferInfo(user(), info.networkId, BufferInfo::ChannelBuffer, rx.cap(1), true);
 617             Core::setChannelPersistent(user(), info.networkId, rx.cap(1), true);
 618             if (!rx.cap(2).isEmpty())
 619                 Core::setPersistentChannelKey(user(), info.networkId, rx.cap(1), rx.cap(2));
 620         }
 621
 622         CoreNetwork* net = new CoreNetwork(id, this);
 623         connect(net, &CoreNetwork::displayMsg, this, &CoreSession::recvMessageFromServer);
 624         connect(net, &CoreNetwork::displayStatusMsg, this, &CoreSession::recvStatusMsgFromServer);
 625         connect(net, &CoreNetwork::disconnected, this, &CoreSession::networkDisconnected);
 626
 627         net->setNetworkInfo(info);
 628         net->setProxy(signalProxy());
 629         _networks[id] = net;
 630         signalProxy()->synchronize(net);
 631         emit networkCreated(id);
 632     }
 633     else {
 634         qWarning() << qPrintable(tr("CoreSession::createNetwork(): Trying to create a network that already exists, updating instead!"));
 635         _networks[info.networkId]->requestSetNetworkInfo(info);
 636     }
 637 }
 638
 639 void CoreSession::removeNetwork(NetworkId id)
 640 {
 641     // Make sure the network is disconnected!
 642     CoreNetwork* net = network(id);
 643     if (!net)
 644         return;
 645
 646     if (net->connectionState() != Network::Disconnected) {
 647         // make sure we no longer receive data from the tcp buffer
 648         disconnect(net, &CoreNetwork::displayMsg, this, nullptr);
 649         disconnect(net, &CoreNetwork::displayStatusMsg, this, nullptr);
 650         connect(net, &CoreNetwork::disconnected, this, &CoreSession::destroyNetwork);
 651         net->disconnectFromIrc();
 652     }
 653     else {
 654         destroyNetwork(id);
 655     }
 656 }
 657
 658 void CoreSession::destroyNetwork(NetworkId id)
 659 {
 660     QList<BufferId> removedBuffers = Core::requestBufferIdsForNetwork(user(), id);
 661     Network* net = _networks.take(id);
 662     if (net && Core::removeNetwork(user(), id)) {
 663         // make sure that all unprocessed RawMessages from this network are removed
 664         QList<RawMessage>::iterator messageIter = _messageQueue.begin();
 665         while (messageIter != _messageQueue.end()) {
 666             if (messageIter->networkId == id) {
 667                 messageIter = _messageQueue.erase(messageIter);
 668             }
 669             else {
 670                 ++messageIter;
 671             }
 672         }
 673         // remove buffers from syncer
 674         for (BufferId bufferId : removedBuffers) {
 675             _bufferSyncer->removeBuffer(bufferId);
 676         }
 677         emit networkRemoved(id);
 678         net->deleteLater();
 679     }
 680 }
 681
 682 void CoreSession::renameBuffer(const NetworkId& networkId, const QString& newName, const QString& oldName)
 683 {
 684     BufferInfo bufferInfo = Core::bufferInfo(user(), networkId, BufferInfo::QueryBuffer, oldName, false);
 685     if (bufferInfo.isValid()) {
 686         _bufferSyncer->renameBuffer(bufferInfo.bufferId(), newName);
 687     }
 688 }
 689
 690 void CoreSession::clientsConnected()
 691 {
 692     QHash<NetworkId, CoreNetwork*>::iterator netIter = _networks.begin();
 693     Identity* identity = nullptr;
 694     CoreNetwork* net = nullptr;
 695     IrcUser* me = nullptr;
 696     while (netIter != _networks.end()) {
 697         net = *netIter;
 698         ++netIter;
 699
 700         if (!net->isConnected())
 701             continue;
 702         identity = net->identityPtr();
 703         if (!identity)
 704             continue;
 705         me = net->me();
 706         if (!me)
 707             continue;
 708
 709         if (identity->detachAwayEnabled() && me->isAway()) {
 710             net->userInputHandler()->handleAway(BufferInfo(), QString());
 711         }
 712     }
 713 }
 714
 715 void CoreSession::clientsDisconnected()
 716 {
 717     QHash<NetworkId, CoreNetwork*>::iterator netIter = _networks.begin();
 718     Identity* identity = nullptr;
 719     CoreNetwork* net = nullptr;
 720     IrcUser* me = nullptr;
 721     QString awayReason;
 722     while (netIter != _networks.end()) {
 723         net = *netIter;
 724         ++netIter;
 725
 726         if (!net->isConnected())
 727             continue;
 728
 729         identity = net->identityPtr();
 730         if (!identity)
 731             continue;
 732         me = net->me();
 733         if (!me)
 734             continue;
 735
 736         if (identity->detachAwayEnabled() && !me->isAway()) {
 737             if (!identity->detachAwayReason().isEmpty())
 738                 awayReason = identity->detachAwayReason();
 739             net->setAutoAwayActive(true);
 740             // Allow handleAway() to format the current date/time in the string.
 741             net->userInputHandler()->handleAway(BufferInfo(), awayReason);
 742         }
 743     }
 744 }
 745
 746 void CoreSession::globalAway(const QString& msg, const bool skipFormatting)
 747 {
 748     QHash<NetworkId, CoreNetwork*>::iterator netIter = _networks.begin();
 749     CoreNetwork* net = nullptr;
 750     while (netIter != _networks.end()) {
 751         net = *netIter;
 752         ++netIter;
 753
 754         if (!net->isConnected())
 755             continue;
 756
 757         net->userInputHandler()->issueAway(msg, false /* no force away */, skipFormatting);
 758     }
 759 }
 760
 761 void CoreSession::changePassword(PeerPtr peer, const QString& userName, const QString& oldPassword, const QString& newPassword)
 762 {
 763     Q_UNUSED(peer);
 764
 765     bool success = false;
 766     UserId uid = Core::validateUser(userName, oldPassword);
 767     if (uid.isValid() && uid == user())
 768         success = Core::changeUserPassword(uid, newPassword);
 769
 770     signalProxy()->restrictTargetPeers(signalProxy()->sourcePeer(), [&] { emit passwordChanged(nullptr, success); });
 771 }
 772
 773 void CoreSession::kickClient(int peerId)
 774 {
 775     auto peer = signalProxy()->peerById(peerId);
 776     if (peer == nullptr) {
 777         qWarning() << "Invalid peer Id: " << peerId;
 778         return;
 779     }
 780     signalProxy()->restrictTargetPeers(peer, [&] { emit disconnectFromCore(); });
 781 }