X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fcore%2Fnetworkconnection.cpp;h=3d9fcc73c18dff8defef76c5130b7999c3195384;hp=381e99d26ce551e74139f63e395ef2d791ef8193;hb=546e609b7e2fa683e8b7b90d6079dd3a80ed4c6b;hpb=723db5bff304ad3fdf5a0609198c65a66bfbaea7

diff --git a/src/core/networkconnection.cpp b/src/core/networkconnection.cpp
index 381e99d2..3d9fcc73 100644
--- a/src/core/networkconnection.cpp
+++ b/src/core/networkconnection.cpp
@@ -36,79 +36,92 @@
 #include "userinputhandler.h"
 #include "ctcphandler.h"
 
-NetworkConnection::NetworkConnection(Network *network, CoreSession *session, const QVariant &state) : QObject(network),
+NetworkConnection::NetworkConnection(Network *network, CoreSession *session)
+  : QObject(network),
     _connectionState(Network::Disconnected),
     _network(network),
     _coreSession(session),
     _ircServerHandler(new IrcServerHandler(this)),
     _userInputHandler(new UserInputHandler(this)),
     _ctcpHandler(new CtcpHandler(this)),
-    _previousState(state)
+    _autoReconnectCount(0),
+    _quitRequested(false),
+
+    _previousConnectionAttemptFailed(false),
+    _lastUsedServerlistIndex(0),
+
+    // TODO make autowho configurable (possibly per-network)
+    _autoWhoEnabled(true),
+    _autoWhoInterval(90),
+    _autoWhoNickLimit(0), // unlimited
+    _autoWhoDelay(3),
+
+    // TokenBucket to avaid sending too much at once
+    _messagesPerSecond(1),
+    _burstSize(5),
+    _tokenBucket(5), // init with a full bucket
+
+    // TODO: 
+    // should be 510 (2 bytes are added when writing to the socket)
+    // maxMsgSize is 510 minus the hostmask which will be added by the server
+    _maxMsgSize(450)
 {
-  connect(network, SIGNAL(currentServerSet(const QString &)), this, SLOT(networkInitialized(const QString &)));
+  _autoReconnectTimer.setSingleShot(true);
+  _socketCloseTimer.setSingleShot(true);
+  connect(&_socketCloseTimer, SIGNAL(timeout()), this, SLOT(socketCloseTimeout()));
+  
+  _autoWhoTimer.setInterval(_autoWhoDelay * 1000);
+  _autoWhoCycleTimer.setInterval(_autoWhoInterval * 1000);
+  
+  _tokenBucketTimer.start(_messagesPerSecond * 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(network, SIGNAL(currentServerSet(const QString &)), this, SLOT(networkInitialized(const QString &)));
+  connect(network, SIGNAL(useAutoReconnectSet(bool)), this, SLOT(autoReconnectSettingsChanged()));
+  connect(network, SIGNAL(autoReconnectIntervalSet(quint32)), this, SLOT(autoReconnectSettingsChanged()));
+  connect(network, SIGNAL(autoReconnectRetriesSet(quint16)), this, SLOT(autoReconnectSettingsChanged()));
+
+#ifndef QT_NO_OPENSSL
+  connect(&socket, SIGNAL(encrypted()), this, SLOT(socketEncrypted()));
+  connect(&socket, SIGNAL(sslErrors(const QList<QSslError> &)), this, SLOT(sslErrors(const QList<QSslError> &)));
+#endif
   connect(&socket, SIGNAL(connected()), this, SLOT(socketConnected()));
+
   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()));
 
+  connect(_ircServerHandler, SIGNAL(nickChanged(const QString &, const QString &)),
+	  this, SLOT(nickChanged(const QString &, const QString &)));
+
+  network->proxy()->attachSignal(this, SIGNAL(sslErrors(const QVariant &)));
 }
 
 NetworkConnection::~NetworkConnection() {
-  disconnectFromIrc();
+  if(connectionState() != Network::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;
 }
 
-bool NetworkConnection::isConnected() const {
-  // return socket.state() == QAbstractSocket::ConnectedState;
-  return connectionState() == Network::Initialized;
-}
-
-Network::ConnectionState NetworkConnection::connectionState() const {
-  return _connectionState;
-}
-
 void NetworkConnection::setConnectionState(Network::ConnectionState state) {
   _connectionState = state;
   network()->setConnectionState(state);
   emit connectionStateChanged(state);
 }
 
-NetworkId NetworkConnection::networkId() const {
-  return network()->networkId();
-}
-
-QString NetworkConnection::networkName() const {
-  return network()->networkName();
-}
-
-Identity *NetworkConnection::identity() const {
-  return coreSession()->identity(network()->identity());
-}
-
-Network *NetworkConnection::network() const {
-  return _network;
-}
-
-CoreSession *NetworkConnection::coreSession() const {
-  return _coreSession;
-}
-
-IrcServerHandler *NetworkConnection::ircServerHandler() const {
-  return _ircServerHandler;
-}
-
-UserInputHandler *NetworkConnection::userInputHandler() const {
-  return _userInputHandler;
-}
-
-CtcpHandler *NetworkConnection::ctcpHandler() const {
-  return _ctcpHandler;
-}
-
 QString NetworkConnection::serverDecode(const QByteArray &string) const {
   return network()->decodeServerString(string);
 }
@@ -145,8 +158,25 @@ QByteArray NetworkConnection::userEncode(const QString &userNick, const QString
   return network()->encodeString(string);
 }
 
+void NetworkConnection::autoReconnectSettingsChanged() {
+  if(!network()->useAutoReconnect()) {
+    _autoReconnectTimer.stop();
+    _autoReconnectCount = 0;
+  } else {
+    _autoReconnectTimer.setInterval(network()->autoReconnectInterval() * 1000);
+    if(_autoReconnectCount != 0) {
+      if(network()->unlimitedReconnectRetries()) _autoReconnectCount = -1;
+      else _autoReconnectCount = network()->autoReconnectRetries();
+    }
+  }
+}
 
-void NetworkConnection::connectToIrc() {
+void NetworkConnection::connectToIrc(bool reconnecting) {
+  if(!reconnecting && network()->useAutoReconnect() && _autoReconnectCount == 0) {
+    _autoReconnectTimer.setInterval(network()->autoReconnectInterval() * 1000);
+    if(network()->unlimitedReconnectRetries()) _autoReconnectCount = -1;
+    else _autoReconnectCount = network()->autoReconnectRetries();
+  }
   QVariantList serverList = network()->serverList();
   Identity *identity = coreSession()->identity(network()->identity());
   if(!serverList.count()) {
@@ -157,32 +187,44 @@ void NetworkConnection::connectToIrc() {
     qWarning() << "Invalid identity configures, ignoring connect request!";
     return;
   }
-  // TODO implement cycling / random servers
-  QString host = serverList[0].toMap()["Host"].toString();
-  quint16 port = serverList[0].toMap()["Port"].toUInt();
-  displayStatusMsg(QString("Connecting to %1:%2...").arg(host).arg(port));
+  // use a random server?
+  if(network()->useRandomServer()) {
+    _lastUsedServerlistIndex = 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(++_lastUsedServerlistIndex == serverList.size()) {
+      _lastUsedServerlistIndex = 0;
+    }
+  }
+  _previousConnectionAttemptFailed = false;
+
+  QString host = serverList[_lastUsedServerlistIndex].toMap()["Host"].toString();
+  quint16 port = serverList[_lastUsedServerlistIndex].toMap()["Port"].toUInt();
+  displayStatusMsg(tr("Connecting to %1:%2...").arg(host).arg(port));
+  displayMsg(Message::Server, BufferInfo::StatusBuffer, "", tr("Connecting to %1:%2...").arg(host).arg(port));
   socket.connectToHost(host, port);
 }
 
 void NetworkConnection::networkInitialized(const QString &currentServer) {
   if(currentServer.isEmpty()) return;
 
+  if(network()->useAutoReconnect() && !network()->unlimitedReconnectRetries()) {
+    _autoReconnectCount = network()->autoReconnectRetries(); // reset counter
+  }
+
   sendPerform();
 
-    // rejoin channels we've been in
-  QStringList chans = _previousState.toStringList();
-  if(chans.count() > 0) {
-    qDebug() << "autojoining" << chans;
-    QVariantList list;
-    foreach(QString chan, chans) list << serverEncode(chan);
-    putCmd("JOIN", list);  // FIXME check for 512 byte limit!
-  }
-  // delete _previousState, we won't need it again
-  _previousState = QVariant();
   // now we are initialized
   setConnectionState(Network::Initialized);
   network()->setConnected(true);
   emit connected(networkId());
+
+  if(_autoWhoEnabled) {
+    _autoWhoCycleTimer.start();
+    _autoWhoTimer.start();
+    startAutoWhoCycle();  // FIXME wait for autojoin to be completed
+  }
 }
 
 void NetworkConnection::sendPerform() {
@@ -195,16 +237,36 @@ void NetworkConnection::sendPerform() {
   foreach(QString line, network()->perform()) {
     if(!line.isEmpty()) userInput(statusBuf, line);
   }
-}
 
-QVariant NetworkConnection::state() const {
-  IrcUser *me = network()->ircUser(network()->myNick());
-  if(!me) return QVariant();  // this shouldn't really happen, I guess
-  return me->channels();
-}
+  // rejoin channels we've been in
+  QStringList channels, keys;
+  foreach(QString chan, persistentChannels()) {
+    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 NetworkConnection::disconnectFromIrc(bool requested) {
+  _autoReconnectTimer.stop();
+  _autoReconnectCount = 0;
+  displayMsg(Message::Server, BufferInfo::StatusBuffer, "", tr("Disconnecting."));
+  if(socket.state() < QAbstractSocket::ConnectedState) {
+    setConnectionState(Network::Disconnected);
+    socketDisconnected();
+  } else {
+    _socketCloseTimer.start(10000); // the irc server has 10 seconds to close the socket
+  }
 
-void NetworkConnection::disconnectFromIrc() {
-  socket.disconnectFromHost();
+  // this flag triggers quitRequested() once the socket is closed
+  // it is needed to determine whether or not the connection needs to be
+  // in the automatic session restore.
+  _quitRequested = requested;
 }
 
 void NetworkConnection::socketHasData() {
@@ -215,13 +277,62 @@ void NetworkConnection::socketHasData() {
 }
 
 void NetworkConnection::socketError(QAbstractSocket::SocketError) {
+  _previousConnectionAttemptFailed = true;
   qDebug() << qPrintable(tr("Could not connect to %1 (%2)").arg(network()->networkName(), socket.errorString()));
   emit connectionError(socket.errorString());
   emit displayMsg(Message::Error, BufferInfo::StatusBuffer, "", tr("Connection failure: %1").arg(socket.errorString()));
   network()->emitConnectionError(socket.errorString());
+  if(socket.state() < QAbstractSocket::ConnectedState) {
+    setConnectionState(Network::Disconnected);
+    socketDisconnected();
+  }
+  // mark last connection attempt as failed
+  
+  //qDebug() << "exiting...";
+  //exit(1);
+}
+
+#ifndef QT_NO_OPENSSL
+
+void NetworkConnection::sslErrors(const QList<QSslError> &sslErrors) {
+  Q_UNUSED(sslErrors)
+  socket.ignoreSslErrors();
+  /* TODO errorhandling
+  QVariantMap errmsg;
+  QVariantList errnums;
+  foreach(QSslError err, errors) errnums << err.error();
+  errmsg["SslErrors"] = errnums;
+  errmsg["SslCert"] = socket.peerCertificate().toPem();
+  errmsg["PeerAddress"] = socket.peerAddress().toString();
+  errmsg["PeerPort"] = socket.peerPort();
+  errmsg["PeerName"] = socket.peerName();
+  emit sslErrors(errmsg);
+  disconnectFromIrc();
+  */
+}
+
+void NetworkConnection::socketEncrypted() {
+  //qDebug() << "encrypted!";
+  socketInitialized();
 }
 
+#endif  // QT_NO_OPENSSL
+
 void NetworkConnection::socketConnected() {
+#ifdef QT_NO_OPENSSL
+  socketInitialized();
+  return;
+#else
+  if(!network()->serverList()[_lastUsedServerlistIndex].toMap()["UseSSL"].toBool()) {
+    socketInitialized();
+    return;
+  }
+  //qDebug() << "starting handshake";
+  socket.startClientEncryption();
+#endif
+}
+
+void NetworkConnection::socketInitialized() {
   //emit connected(networkId());  initialize first!
   Identity *identity = coreSession()->identity(network()->identity());
   if(!identity) {
@@ -229,6 +340,10 @@ void NetworkConnection::socketConnected() {
     disconnectFromIrc();
     return;
   }
+  QString passwd = network()->serverList()[_lastUsedServerlistIndex].toMap()["Password"].toString();
+  if(!passwd.isEmpty()) {
+    putRawLine(serverEncode(QString("PASS %1").arg(passwd)));
+  }
   putRawLine(serverEncode(QString("NICK :%1").arg(identity->nicks()[0])));  // FIXME: try more nicks if error occurs
   putRawLine(serverEncode(QString("USER %1 8 * :%2").arg(identity->ident(), identity->realName())));
 }
@@ -255,9 +370,36 @@ void NetworkConnection::socketStateChanged(QAbstractSocket::SocketState socketSt
   setConnectionState(state);
 }
 
+void NetworkConnection::socketCloseTimeout() {
+  socket.disconnectFromHost();
+}
+
 void NetworkConnection::socketDisconnected() {
+  _autoWhoCycleTimer.stop();
+  _autoWhoTimer.stop();
+  _autoWhoQueue.clear();
+  _autoWhoInProgress.clear();
+
+  _socketCloseTimer.stop();
+  
   network()->setConnected(false);
   emit disconnected(networkId());
+  if(_autoReconnectCount != 0) {
+    setConnectionState(Network::Reconnecting);
+    if(_autoReconnectCount == network()->autoReconnectRetries()) doAutoReconnect(); // first try is immediate
+    else _autoReconnectTimer.start();
+  } else if(_quitRequested) {
+    emit quitRequested(networkId());
+  }
+}
+
+void NetworkConnection::doAutoReconnect() {
+  if(connectionState() != Network::Disconnected && connectionState() != Network::Reconnecting) {
+    qWarning() << "NetworkConnection::doAutoReconnect(): Cannot reconnect while not being disconnected!";
+    return;
+  }
+  if(_autoReconnectCount > 0) _autoReconnectCount--;
+  connectToIrc(true);
 }
 
 // FIXME switch to BufferId
@@ -266,8 +408,29 @@ void NetworkConnection::userInput(BufferInfo buf, QString msg) {
 }
 
 void NetworkConnection::putRawLine(QByteArray s) {
+  if(_tokenBucket > 0) {
+    // qDebug() << "putRawLine: " << s;
+    writeToSocket(s);
+  } else {
+    _msgQueue.append(s);
+  }
+}
+
+void NetworkConnection::writeToSocket(QByteArray s) {
   s += "\r\n";
+  // qDebug() << "writeToSocket: " << s.size();
   socket.write(s);
+  _tokenBucket--;
+}
+
+void NetworkConnection::fillBucketAndProcessQueue() {
+  if(_tokenBucket < _burstSize) {
+    _tokenBucket++;
+  }
+
+  while(_msgQueue.size() > 0 && _tokenBucket > 0) {
+    writeToSocket(_msgQueue.takeFirst());
+  }
 }
 
 void NetworkConnection::putCmd(const QString &cmd, const QVariantList &params, const QByteArray &prefix) {
@@ -282,9 +445,85 @@ void NetworkConnection::putCmd(const QString &cmd, const QVariantList &params, c
   if(!params.isEmpty())
     msg += " :" + params.last().toByteArray();
 
+  if(cmd == "PRIVMSG" && params.count() > 1) {
+    QByteArray msghead = "PRIVMSG " + params[0].toByteArray() + " :";
+
+    while (msg.size() > _maxMsgSize) {
+      QByteArray splitter(" .,-");
+      int splitPosition = 0;
+      for(int i = 0; i < splitter.size(); i++) {
+        splitPosition = qMax(splitPosition, msg.lastIndexOf(splitter[i], _maxMsgSize));
+      }
+      if(splitPosition < 300) {
+        splitPosition = _maxMsgSize;
+      }
+      putRawLine(msg.left(splitPosition)); 
+      msg = msghead + msg.mid(splitPosition);
+    }
+  }
+
   putRawLine(msg);
 }
 
+void NetworkConnection::sendAutoWho() {
+  while(!_autoWhoQueue.isEmpty()) {
+    QString chan = _autoWhoQueue.takeFirst();
+    IrcChannel *ircchan = network()->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 NetworkConnection::startAutoWhoCycle() {
+  if(!_autoWhoQueue.isEmpty()) {
+    _autoWhoCycleTimer.stop();
+    return;
+  }
+  _autoWhoQueue = network()->channels();
+}
+
+bool NetworkConnection::setAutoWhoDone(const QString &channel) {
+  if(_autoWhoInProgress.value(channel.toLower(), 0) <= 0) return false;
+  _autoWhoInProgress[channel.toLower()]--;
+  return true;
+}
+
+void NetworkConnection::setChannelJoined(const QString &channel) {
+  emit channelJoined(networkId(), channel, _channelKeys[channel.toLower()]);
+  _autoWhoQueue.prepend(channel.toLower()); // prepend so this new chan is the first to be checked
+}
+
+void NetworkConnection::setChannelParted(const QString &channel) {
+  removeChannelKey(channel);
+  _autoWhoQueue.removeAll(channel.toLower());
+  _autoWhoInProgress.remove(channel.toLower());
+  emit channelParted(networkId(), channel);
+}
+
+void NetworkConnection::addChannelKey(const QString &channel, const QString &key) {
+  if(key.isEmpty()) {
+    removeChannelKey(channel);
+  } else {
+    _channelKeys[channel.toLower()] = key;
+  }
+}
+
+void NetworkConnection::removeChannelKey(const QString &channel) {
+  _channelKeys.remove(channel.toLower());
+}
+
+void NetworkConnection::nickChanged(const QString &newNick, const QString &oldNick) {
+  emit nickChanged(networkId(), newNick, oldNick);
+}
+
 /* Exception classes for message handling */
 NetworkConnection::ParseError::ParseError(QString cmd, QString prefix, QStringList params) {
   Q_UNUSED(prefix);
@@ -295,3 +534,4 @@ NetworkConnection::UnknownCmdError::UnknownCmdError(QString cmd, QString prefix,
   Q_UNUSED(prefix);
   _msg = QString("Unknown Command: ") + cmd + params.join(" ");
 }
+