/***************************************************************************
- * Copyright (C) 2005-08 by the Quassel Project *
+ * Copyright (C) 2005-09 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
***************************************************************************/
#include "corenetwork.h"
+
+#include "core.h"
#include "coresession.h"
+#include "coreidentity.h"
-#include "logger.h"
+#include "ircserverhandler.h"
+#include "userinputhandler.h"
+#include "ctcphandler.h"
CoreNetwork::CoreNetwork(const NetworkId &networkid, CoreSession *session)
: Network(networkid, session),
- _coreSession(session)
+ _coreSession(session),
+ _ircServerHandler(new IrcServerHandler(this)),
+ _userInputHandler(new UserInputHandler(this)),
+ _ctcpHandler(new CtcpHandler(this)),
+ _autoReconnectCount(0),
+ _quitRequested(false),
+
+ _previousConnectionAttemptFailed(false),
+ _lastUsedServerIndex(0),
+
+ // TODO make autowho configurable (possibly per-network)
+ _autoWhoEnabled(true),
+ _autoWhoInterval(90),
+ _autoWhoNickLimit(0), // unlimited
+ _autoWhoDelay(3)
{
+ _autoReconnectTimer.setSingleShot(true);
+ _socketCloseTimer.setSingleShot(true);
+ connect(&_socketCloseTimer, SIGNAL(timeout()), this, SLOT(socketCloseTimeout()));
+
+ _pingTimer.setInterval(60000);
+ connect(&_pingTimer, SIGNAL(timeout()), this, SLOT(sendPing()));
+
+ _autoWhoTimer.setInterval(_autoWhoDelay * 1000);
+ _autoWhoCycleTimer.setInterval(_autoWhoInterval * 1000);
+
+ QHash<QString, QString> channels = coreSession()->persistentChannels(networkId());
+ foreach(QString chan, channels.keys()) {
+ _channelKeys[chan.toLower()] = channels[chan];
+ }
+
+ connect(&_autoReconnectTimer, SIGNAL(timeout()), this, SLOT(doAutoReconnect()));
+ connect(&_autoWhoTimer, SIGNAL(timeout()), this, SLOT(sendAutoWho()));
+ connect(&_autoWhoCycleTimer, SIGNAL(timeout()), this, SLOT(startAutoWhoCycle()));
+ connect(&_tokenBucketTimer, SIGNAL(timeout()), this, SLOT(fillBucketAndProcessQueue()));
+ connect(this, SIGNAL(connectRequested()), this, SLOT(connectToIrc()));
+
+
+ connect(&socket, SIGNAL(connected()), this, SLOT(socketInitialized()));
+ connect(&socket, SIGNAL(disconnected()), this, SLOT(socketDisconnected()));
+ connect(&socket, SIGNAL(error(QAbstractSocket::SocketError)), this, SLOT(socketError(QAbstractSocket::SocketError)));
+ connect(&socket, SIGNAL(stateChanged(QAbstractSocket::SocketState)), this, SLOT(socketStateChanged(QAbstractSocket::SocketState)));
+ connect(&socket, SIGNAL(readyRead()), this, SLOT(socketHasData()));
+#ifdef HAVE_SSL
+ connect(&socket, SIGNAL(encrypted()), this, SLOT(socketInitialized()));
+ connect(&socket, SIGNAL(sslErrors(const QList<QSslError> &)), this, SLOT(sslErrors(const QList<QSslError> &)));
+#endif
+}
+
+CoreNetwork::~CoreNetwork() {
+ if(connectionState() != Disconnected && connectionState() != Network::Reconnecting)
+ disconnectFromIrc(false); // clean up, but this does not count as requested disconnect!
+ disconnect(&socket, 0, this, 0); // this keeps the socket from triggering events during clean up
+ delete _ircServerHandler;
+ delete _userInputHandler;
+ delete _ctcpHandler;
+}
+
+QString CoreNetwork::channelDecode(const QString &bufferName, const QByteArray &string) const {
+ if(!bufferName.isEmpty()) {
+ IrcChannel *channel = ircChannel(bufferName);
+ if(channel)
+ return channel->decodeString(string);
+ }
+ return decodeString(string);
+}
+
+QString CoreNetwork::userDecode(const QString &userNick, const QByteArray &string) const {
+ IrcUser *user = ircUser(userNick);
+ if(user)
+ return user->decodeString(string);
+ return decodeString(string);
+}
+
+QByteArray CoreNetwork::channelEncode(const QString &bufferName, const QString &string) const {
+ if(!bufferName.isEmpty()) {
+ IrcChannel *channel = ircChannel(bufferName);
+ if(channel)
+ return channel->encodeString(string);
+ }
+ return encodeString(string);
+}
+
+QByteArray CoreNetwork::userEncode(const QString &userNick, const QString &string) const {
+ IrcUser *user = ircUser(userNick);
+ if(user)
+ return user->encodeString(string);
+ return encodeString(string);
+}
+
+void CoreNetwork::connectToIrc(bool reconnecting) {
+ if(!reconnecting && useAutoReconnect() && _autoReconnectCount == 0) {
+ _autoReconnectTimer.setInterval(autoReconnectInterval() * 1000);
+ if(unlimitedReconnectRetries())
+ _autoReconnectCount = -1;
+ else
+ _autoReconnectCount = autoReconnectRetries();
+ }
+ if(serverList().isEmpty()) {
+ qWarning() << "Server list empty, ignoring connect request!";
+ return;
+ }
+ CoreIdentity *identity = identityPtr();
+ if(!identity) {
+ qWarning() << "Invalid identity configures, ignoring connect request!";
+ return;
+ }
+
+ // cleaning up old quit reason
+ _quitReason.clear();
+
+ // use a random server?
+ if(useRandomServer()) {
+ _lastUsedServerIndex = qrand() % serverList().size();
+ } else if(_previousConnectionAttemptFailed) {
+ // cycle to next server if previous connection attempt failed
+ displayMsg(Message::Server, BufferInfo::StatusBuffer, "", tr("Connection failed. Cycling to next Server"));
+ if(++_lastUsedServerIndex >= serverList().size()) {
+ _lastUsedServerIndex = 0;
+ }
+ }
+ _previousConnectionAttemptFailed = false;
+
+ Server server = usedServer();
+ displayStatusMsg(tr("Connecting to %1:%2...").arg(server.host).arg(server.port));
+ displayMsg(Message::Server, BufferInfo::StatusBuffer, "", tr("Connecting to %1:%2...").arg(server.host).arg(server.port));
+
+ if(server.useProxy) {
+ QNetworkProxy proxy((QNetworkProxy::ProxyType)server.proxyType, server.proxyHost, server.proxyPort, server.proxyUser, server.proxyPass);
+ socket.setProxy(proxy);
+ } else {
+ socket.setProxy(QNetworkProxy::NoProxy);
+ }
+
+#ifdef HAVE_SSL
+ socket.setProtocol((QSsl::SslProtocol)server.sslVersion);
+ if(server.useSsl) {
+ CoreIdentity *identity = identityPtr();
+ if(identity) {
+ socket.setLocalCertificate(identity->sslCert());
+ socket.setPrivateKey(identity->sslKey());
+ }
+ socket.connectToHostEncrypted(server.host, server.port);
+ } else {
+ socket.connectToHost(server.host, server.port);
+ }
+#else
+ socket.connectToHost(server.host, server.port);
+#endif
+}
+
+void CoreNetwork::disconnectFromIrc(bool requested, const QString &reason) {
+ _quitRequested = requested; // see socketDisconnected();
+ _autoReconnectTimer.stop();
+ _autoReconnectCount = 0; // prohibiting auto reconnect
+
+ IrcUser *me_ = me();
+ if(me_) {
+ QString awayMsg;
+ if(me_->isAway())
+ awayMsg = me_->awayMessage();
+ Core::setAwayMessage(userId(), networkId(), awayMsg);
+ Core::setUserModes(userId(), networkId(), me_->userModes());
+ }
+
+ displayMsg(Message::Server, BufferInfo::StatusBuffer, "", tr("Disconnecting."));
+ if(socket.state() == QAbstractSocket::UnconnectedState) {
+ socketDisconnected();
+ } else if(socket.state() < QAbstractSocket::ConnectedState || !requested) {
+ // we might be in a state waiting for a timeout...
+ // or (!requested) this is a core shutdown...
+ // in both cases we don't really care... set a disconnected state
+ socket.close();
+ socketDisconnected();
+ } else {
+ // quit gracefully if it's user requested quit
+ if(reason.isEmpty() && identityPtr())
+ _quitReason = identityPtr()->quitReason();
+ else
+ _quitReason = reason;
+ userInputHandler()->issueQuit(_quitReason);
+ // the irc server has 10 seconds to close the socket
+ _socketCloseTimer.start(10000);
+ }
+}
+
+void CoreNetwork::userInput(BufferInfo buf, QString msg) {
+ userInputHandler()->handleUserInput(buf, msg);
+}
+
+void CoreNetwork::putRawLine(QByteArray s) {
+ if(_tokenBucket > 0)
+ writeToSocket(s);
+ else
+ _msgQueue.append(s);
+}
+
+void CoreNetwork::putCmd(const QString &cmd, const QList<QByteArray> ¶ms, const QByteArray &prefix) {
+ QByteArray msg;
+
+ if(!prefix.isEmpty())
+ msg += ":" + prefix + " ";
+ msg += cmd.toUpper().toAscii();
+
+ for(int i = 0; i < params.size() - 1; i++) {
+ msg += " " + params[i];
+ }
+ if(!params.isEmpty())
+ msg += " :" + params.last();
+
+ putRawLine(msg);
+}
+
+void CoreNetwork::setChannelJoined(const QString &channel) {
+ _autoWhoQueue.prepend(channel.toLower()); // prepend so this new chan is the first to be checked
+
+ Core::setChannelPersistent(userId(), networkId(), channel, true);
+ Core::setPersistentChannelKey(userId(), networkId(), channel, _channelKeys[channel.toLower()]);
+}
+
+void CoreNetwork::setChannelParted(const QString &channel) {
+ removeChannelKey(channel);
+ _autoWhoQueue.removeAll(channel.toLower());
+ _autoWhoInProgress.remove(channel.toLower());
+
+ Core::setChannelPersistent(userId(), networkId(), channel, false);
+}
+
+void CoreNetwork::addChannelKey(const QString &channel, const QString &key) {
+ if(key.isEmpty()) {
+ removeChannelKey(channel);
+ } else {
+ _channelKeys[channel.toLower()] = key;
+ }
+}
+
+void CoreNetwork::removeChannelKey(const QString &channel) {
+ _channelKeys.remove(channel.toLower());
+}
+
+bool CoreNetwork::setAutoWhoDone(const QString &channel) {
+ if(_autoWhoInProgress.value(channel.toLower(), 0) <= 0)
+ return false;
+ _autoWhoInProgress[channel.toLower()]--;
+ return true;
+}
+
+void CoreNetwork::setMyNick(const QString &mynick) {
+ Network::setMyNick(mynick);
+ if(connectionState() == Network::Initializing)
+ networkInitialized();
+}
+
+void CoreNetwork::socketHasData() {
+ while(socket.canReadLine()) {
+ QByteArray s = socket.readLine().trimmed();
+ ircServerHandler()->handleServerMsg(s);
+ }
+}
+
+void CoreNetwork::socketError(QAbstractSocket::SocketError error) {
+ if(_quitRequested && error == QAbstractSocket::RemoteHostClosedError)
+ return;
+
+ _previousConnectionAttemptFailed = true;
+ qWarning() << qPrintable(tr("Could not connect to %1 (%2)").arg(networkName(), socket.errorString()));
+ emit connectionError(socket.errorString());
+ emit displayMsg(Message::Error, BufferInfo::StatusBuffer, "", tr("Connection failure: %1").arg(socket.errorString()));
+ emitConnectionError(socket.errorString());
+ if(socket.state() < QAbstractSocket::ConnectedState) {
+ socketDisconnected();
+ }
+}
+
+void CoreNetwork::socketInitialized() {
+ Server server = usedServer();
+#ifdef HAVE_SSL
+ if(server.useSsl && !socket.isEncrypted())
+ return;
+#endif
+
+ CoreIdentity *identity = identityPtr();
+ if(!identity) {
+ qCritical() << "Identity invalid!";
+ disconnectFromIrc();
+ return;
+ }
+
+ // TokenBucket to avoid sending too much at once
+ _messagesPerSecond = 1;
+ _burstSize = 5;
+ _tokenBucket = 5; // init with a full bucket
+ _tokenBucketTimer.start(_messagesPerSecond * 1000);
+
+ if(!server.password.isEmpty()) {
+ putRawLine(serverEncode(QString("PASS %1").arg(server.password)));
+ }
+ putRawLine(serverEncode(QString("NICK :%1").arg(identity->nicks()[0])));
+ putRawLine(serverEncode(QString("USER %1 8 * :%2").arg(identity->ident(), identity->realName())));
+}
+
+void CoreNetwork::socketDisconnected() {
+ _pingTimer.stop();
+ _autoWhoCycleTimer.stop();
+ _autoWhoTimer.stop();
+ _autoWhoQueue.clear();
+ _autoWhoInProgress.clear();
+
+ _socketCloseTimer.stop();
+
+ _tokenBucketTimer.stop();
+
+ IrcUser *me_ = me();
+ if(me_) {
+ foreach(QString channel, me_->channels())
+ emit displayMsg(Message::Quit, BufferInfo::ChannelBuffer, channel, _quitReason, me_->hostmask());
+ }
+
+ setConnected(false);
+ emit disconnected(networkId());
+ if(_quitRequested) {
+ setConnectionState(Network::Disconnected);
+ Core::setNetworkConnected(userId(), networkId(), false);
+ } else if(_autoReconnectCount != 0) {
+ setConnectionState(Network::Reconnecting);
+ if(_autoReconnectCount == autoReconnectRetries())
+ doAutoReconnect(); // first try is immediate
+ else
+ _autoReconnectTimer.start();
+ }
+}
+
+void CoreNetwork::socketStateChanged(QAbstractSocket::SocketState socketState) {
+ Network::ConnectionState state;
+ switch(socketState) {
+ case QAbstractSocket::UnconnectedState:
+ state = Network::Disconnected;
+ break;
+ case QAbstractSocket::HostLookupState:
+ case QAbstractSocket::ConnectingState:
+ state = Network::Connecting;
+ break;
+ case QAbstractSocket::ConnectedState:
+ state = Network::Initializing;
+ break;
+ case QAbstractSocket::ClosingState:
+ state = Network::Disconnecting;
+ break;
+ default:
+ state = Network::Disconnected;
+ }
+ setConnectionState(state);
+}
+
+void CoreNetwork::networkInitialized() {
+ setConnectionState(Network::Initialized);
+ setConnected(true);
+ _quitRequested = false;
+
+ if(useAutoReconnect()) {
+ // reset counter
+ _autoReconnectCount = autoReconnectRetries();
+ }
+
+ // restore away state
+ userInputHandler()->handleAway(BufferInfo(), Core::awayMessage(userId(), networkId()));
+
+ // restore old user modes if server default mode is set.
+ IrcUser *me_ = me();
+ if(me_) {
+ if(!me_->userModes().isEmpty()) {
+ restoreUserModes();
+ } else {
+ connect(me_, SIGNAL(userModesSet(QString)), this, SLOT(restoreUserModes()));
+ connect(me_, SIGNAL(userModesAdded(QString)), this, SLOT(restoreUserModes()));
+ }
+ }
+
+ sendPerform();
+
+ _pingTimer.start();
+
+ if(_autoWhoEnabled) {
+ _autoWhoCycleTimer.start();
+ _autoWhoTimer.start();
+ startAutoWhoCycle(); // FIXME wait for autojoin to be completed
+ }
+
+ Core::bufferInfo(userId(), networkId(), BufferInfo::StatusBuffer); // create status buffer
+ Core::setNetworkConnected(userId(), networkId(), true);
+}
+
+void CoreNetwork::sendPerform() {
+ BufferInfo statusBuf = BufferInfo::fakeStatusBuffer(networkId());
+
+ // do auto identify
+ if(useAutoIdentify() && !autoIdentifyService().isEmpty() && !autoIdentifyPassword().isEmpty()) {
+ userInputHandler()->handleMsg(statusBuf, QString("%1 IDENTIFY %2").arg(autoIdentifyService(), autoIdentifyPassword()));
+ }
+
+ // send perform list
+ foreach(QString line, perform()) {
+ if(!line.isEmpty()) userInput(statusBuf, line);
+ }
+
+ // rejoin channels we've been in
+ if(rejoinChannels()) {
+ QStringList channels, keys;
+ foreach(QString chan, coreSession()->persistentChannels(networkId()).keys()) {
+ QString key = channelKey(chan);
+ if(!key.isEmpty()) {
+ channels.prepend(chan);
+ keys.prepend(key);
+ } else {
+ channels.append(chan);
+ }
+ }
+ QString joinString = QString("%1 %2").arg(channels.join(",")).arg(keys.join(",")).trimmed();
+ if(!joinString.isEmpty())
+ userInputHandler()->handleJoin(statusBuf, joinString);
+ }
+}
+
+void CoreNetwork::restoreUserModes() {
+ IrcUser *me_ = me();
+ Q_ASSERT(me_);
+
+ disconnect(me_, SIGNAL(userModesSet(QString)), this, SLOT(restoreUserModes()));
+ disconnect(me_, SIGNAL(userModesAdded(QString)), this, SLOT(restoreUserModes()));
+
+ QString removeModes;
+ QString addModes = Core::userModes(userId(), networkId());
+ QString currentModes = me_->userModes();
+
+ removeModes = currentModes;
+ removeModes.remove(QRegExp(QString("[%1]").arg(addModes)));
+ addModes.remove(QRegExp(QString("[%1]").arg(currentModes)));
+
+ removeModes = QString("%1 -%2").arg(me_->nick(), removeModes);
+ addModes = QString("%1 +%2").arg(me_->nick(), addModes);
+ userInputHandler()->handleMode(BufferInfo(), removeModes);
+ userInputHandler()->handleMode(BufferInfo(), addModes);
+}
+
+void CoreNetwork::setUseAutoReconnect(bool use) {
+ Network::setUseAutoReconnect(use);
+ if(!use)
+ _autoReconnectTimer.stop();
+}
+
+void CoreNetwork::setAutoReconnectInterval(quint32 interval) {
+ Network::setAutoReconnectInterval(interval);
+ _autoReconnectTimer.setInterval(interval * 1000);
+}
+
+void CoreNetwork::setAutoReconnectRetries(quint16 retries) {
+ Network::setAutoReconnectRetries(retries);
+ if(_autoReconnectCount != 0) {
+ if(unlimitedReconnectRetries())
+ _autoReconnectCount = -1;
+ else
+ _autoReconnectCount = autoReconnectRetries();
+ }
+}
+
+void CoreNetwork::doAutoReconnect() {
+ if(connectionState() != Network::Disconnected && connectionState() != Network::Reconnecting) {
+ qWarning() << "CoreNetwork::doAutoReconnect(): Cannot reconnect while not being disconnected!";
+ return;
+ }
+ if(_autoReconnectCount > 0)
+ _autoReconnectCount--;
+ connectToIrc(true);
+}
+
+void CoreNetwork::sendPing() {
+ userInputHandler()->handlePing(BufferInfo(), QString());
+}
+
+void CoreNetwork::sendAutoWho() {
+ while(!_autoWhoQueue.isEmpty()) {
+ QString chan = _autoWhoQueue.takeFirst();
+ IrcChannel *ircchan = ircChannel(chan);
+ if(!ircchan) continue;
+ if(_autoWhoNickLimit > 0 && ircchan->ircUsers().count() > _autoWhoNickLimit) continue;
+ _autoWhoInProgress[chan]++;
+ putRawLine("WHO " + serverEncode(chan));
+ if(_autoWhoQueue.isEmpty() && _autoWhoEnabled && !_autoWhoCycleTimer.isActive()) {
+ // Timer was stopped, means a new cycle is due immediately
+ _autoWhoCycleTimer.start();
+ startAutoWhoCycle();
+ }
+ break;
+ }
+}
+
+void CoreNetwork::startAutoWhoCycle() {
+ if(!_autoWhoQueue.isEmpty()) {
+ _autoWhoCycleTimer.stop();
+ return;
+ }
+ _autoWhoQueue = channels();
+}
+
+#ifdef HAVE_SSL
+void CoreNetwork::sslErrors(const QList<QSslError> &sslErrors) {
+ Q_UNUSED(sslErrors)
+ socket.ignoreSslErrors();
+ // TODO errorhandling
+}
+#endif // HAVE_SSL
+
+void CoreNetwork::fillBucketAndProcessQueue() {
+ if(_tokenBucket < _burstSize) {
+ _tokenBucket++;
+ }
+
+ while(_msgQueue.size() > 0 && _tokenBucket > 0) {
+ writeToSocket(_msgQueue.takeFirst());
+ }
+}
+
+void CoreNetwork::writeToSocket(const QByteArray &data) {
+ socket.write(data);
+ socket.write("\r\n");
+ _tokenBucket--;
+}
+
+Network::Server CoreNetwork::usedServer() const {
+ if(_lastUsedServerIndex < serverList().count())
+ return serverList()[_lastUsedServerIndex];
+
+ if(!serverList().isEmpty())
+ return serverList()[0];
+
+ return Network::Server();
}
void CoreNetwork::requestConnect() const {
if(connectionState() != Disconnected) {
- quWarning() << "Requesting connect while already being connected!";
+ qWarning() << "Requesting connect while already being connected!";
return;
}
- emit connectRequested(networkId());
+ Network::requestConnect();
}
void CoreNetwork::requestDisconnect() const {
if(connectionState() == Disconnected) {
- quWarning() << "Requesting disconnect while not being connected!";
+ qWarning() << "Requesting disconnect while not being connected!";
return;
}
- emit disconnectRequested(networkId());
+ userInputHandler()->handleQuit(BufferInfo(), QString());
+}
+
+void CoreNetwork::requestSetNetworkInfo(const NetworkInfo &info) {
+ Network::Server currentServer = usedServer();
+ setNetworkInfo(info);
+ Core::updateNetwork(coreSession()->user(), info);
+
+ // the order of the servers might have changed,
+ // so we try to find the previously used server
+ _lastUsedServerIndex = 0;
+ for(int i = 0; i < serverList().count(); i++) {
+ Network::Server server = serverList()[i];
+ if(server.host == currentServer.host && server.port == currentServer.port) {
+ _lastUsedServerIndex = i;
+ break;
+ }
+ }
}
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