#include "core.h"
#include "coresession.h"
+#include "ircchannel.h"
#include "ircuser.h"
-#include "network.h"
#include "identity.h"
#include "ircserverhandler.h"
#include "userinputhandler.h"
#include "ctcphandler.h"
-NetworkConnection::NetworkConnection(Network *network, CoreSession *session, const QVariant &state) : QObject(network),
+#include "logger.h"
+
+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
{
- connect(network, SIGNAL(currentServerSet(const QString &)), this, SLOT(networkInitialized()));
+ _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);
+
+ _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()));
+
+#ifdef HAVE_SSL
+ 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();
-}
-
-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()->decodeString(string);
+ return network()->decodeServerString(string);
}
-QString NetworkConnection::bufferDecode(const QString &bufferName, const QByteArray &string) const {
- Q_UNUSED(bufferName);
- // TODO: Implement buffer-specific encodings
+QString NetworkConnection::channelDecode(const QString &bufferName, const QByteArray &string) const {
+ if(!bufferName.isEmpty()) {
+ IrcChannel *channel = network()->ircChannel(bufferName);
+ if(channel) return channel->decodeString(string);
+ }
return network()->decodeString(string);
}
}
QByteArray NetworkConnection::serverEncode(const QString &string) const {
- return network()->encodeString(string);
+ return network()->encodeServerString(string);
}
-QByteArray NetworkConnection::bufferEncode(const QString &bufferName, const QString &string) const {
- Q_UNUSED(bufferName);
- // TODO: Implement buffer-specific encodings
+QByteArray NetworkConnection::channelEncode(const QString &bufferName, const QString &string) const {
+ if(!bufferName.isEmpty()) {
+ IrcChannel *channel = network()->ircChannel(bufferName);
+ if(channel) return channel->encodeString(string);
+ }
return network()->encodeString(string);
}
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()) {
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() {
- sendPerform();
+void NetworkConnection::networkInitialized(const QString ¤tServer) {
+ if(currentServer.isEmpty()) return;
- // rejoin channels we've been in
- QStringList chans = _previousState.toStringList();
- if(chans.count() > 0) {
- qDebug() << "autojoining" << chans;
- QString list = chans.join(",");
- putCmd("join", QStringList(list)); // FIXME check for 512 byte limit!
+ if(network()->useAutoReconnect() && !network()->unlimitedReconnectRetries()) {
+ _autoReconnectCount = network()->autoReconnectRetries(); // reset counter
}
- // delete _previousState, we won't need it again
- _previousState = QVariant();
+
+ sendPerform();
+
// now we are initialized
setConnectionState(Network::Initialized);
network()->setConnected(true);
emit connected(networkId());
-}
-void NetworkConnection::sendPerform() {
- // TODO: reimplement perform List!
- //// send performlist
- //QStringList performList = networkSettings["Perform"].toString().split( "\n" );
- //int count = performList.count();
- //for(int a = 0; a < count; a++) {
- // if(!performList[a].isEmpty() ) {
- // userInput(network, "", performList[a]);
- // }
- //}
+ _pingTimer.start();
+ if(_autoWhoEnabled) {
+ _autoWhoCycleTimer.start();
+ _autoWhoTimer.start();
+ startAutoWhoCycle(); // FIXME wait for autojoin to be completed
+ }
}
-QVariant NetworkConnection::state() const {
- IrcUser *me = network()->ircUser(network()->myNick());
- if(!me) return QVariant(); // this shouldn't really happen, I guess
- return me->channels();
-}
+void NetworkConnection::sendPerform() {
+ BufferInfo statusBuf = Core::bufferInfo(coreSession()->user(), network()->networkId(), BufferInfo::StatusBuffer);
+ // do auto identify
+ if(network()->useAutoIdentify() && !network()->autoIdentifyService().isEmpty() && !network()->autoIdentifyPassword().isEmpty()) {
+ userInputHandler()->handleMsg(statusBuf, QString("%1 IDENTIFY %2").arg(network()->autoIdentifyService(), network()->autoIdentifyPassword()));
+ }
+ // send perform list
+ foreach(QString line, network()->perform()) {
+ if(!line.isEmpty()) userInput(statusBuf, line);
+ }
-void NetworkConnection::disconnectFromIrc() {
- socket.disconnectFromHost();
+ // 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, const QString &reason) {
+ _quitRequested = requested; // see socketDisconnected();
+ _autoReconnectTimer.stop();
+ _autoReconnectCount = 0; // prohibiting auto reconnect
+ 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
+ userInputHandler()->issueQuit(reason);
+ // the irc server has 10 seconds to close the socket
+ _socketCloseTimer.start(10000);
+ }
}
void NetworkConnection::socketHasData() {
}
void NetworkConnection::socketError(QAbstractSocket::SocketError) {
- qDebug() << qPrintable(tr("Could not connect to %1 (%2)").arg(network()->networkName(), socket.errorString()));
+ _previousConnectionAttemptFailed = true;
+ qWarning() << 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) {
+ socketDisconnected();
+ }
+ // mark last connection attempt as failed
+
+ //qDebug() << "exiting...";
+ //exit(1);
+}
+
+#ifdef HAVE_SSL
+
+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 // HAVE_SSL
+
void NetworkConnection::socketConnected() {
+#ifndef HAVE_SSL
+ 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) {
- qWarning() << "Identity invalid!";
+ qCritical() << "Identity invalid!";
disconnectFromIrc();
return;
}
- putRawLine(QString("NICK :%1").arg(identity->nicks()[0])); // FIXME: try more nicks if error occurs
- putRawLine(QString("USER %1 8 * :%2").arg(identity->ident(), identity->realName()));
+ 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())));
}
void NetworkConnection::socketStateChanged(QAbstractSocket::SocketState socketState) {
setConnectionState(state);
}
+void NetworkConnection::socketCloseTimeout() {
+ socket.disconnectFromHost();
+}
+
void NetworkConnection::socketDisconnected() {
+ _pingTimer.stop();
+ _autoWhoCycleTimer.stop();
+ _autoWhoTimer.stop();
+ _autoWhoQueue.clear();
+ _autoWhoInProgress.clear();
+
+ _socketCloseTimer.stop();
+
+ IrcUser *me = network()->me();
+ if(me) {
+ foreach(QString channel, me->channels())
+ emit displayMsg(Message::Quit, BufferInfo::ChannelBuffer, channel, "", me->hostmask());
+ }
+
network()->setConnected(false);
emit disconnected(networkId());
+ if(_quitRequested) {
+ setConnectionState(Network::Disconnected);
+ emit quitRequested(networkId());
+ } else if(_autoReconnectCount != 0) {
+ setConnectionState(Network::Reconnecting);
+ if(_autoReconnectCount == network()->autoReconnectRetries())
+ doAutoReconnect(); // first try is immediate
+ else
+ _autoReconnectTimer.start();
+ }
+}
+
+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
userInputHandler()->handleUserInput(buf, msg);
}
-void NetworkConnection::putRawLine(QString s) {
+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";
- socket.write(s.toAscii());
+ // 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(QString cmd, QStringList params, QString prefix) {
- QString msg;
+// returns 0 if the message will not be chopped by the irc server or number of chopped bytes if message is too long
+int NetworkConnection::lastParamOverrun(const QString &cmd, const QList<QByteArray> ¶ms) {
+ //the server will pass our message that trunkated to 512 bytes including CRLF with the following format:
+ // ":prefix COMMAND param0 param1 :lastparam"
+ // where prefix = "nickname!user@host"
+ // that means that the last message can be as long as:
+ // 512 - nicklen - userlen - hostlen - commandlen - sum(param[0]..param[n-1])) - 2 (for CRLF) - 4 (":!@" + 1space between prefix and command) - max(paramcount - 1, 0) (space for simple params) - 2 (space and colon for last param)
+ IrcUser *me = network()->me();
+ int maxLen = 480 - cmd.toAscii().count(); // educated guess in case we don't know us (yet?)
+
+ if(me)
+ maxLen = 512 - serverEncode(me->nick()).count() - serverEncode(me->user()).count() - serverEncode(me->host()).count() - cmd.toAscii().count() - 6;
+
+ if(!params.isEmpty()) {
+ for(int i = 0; i < params.count() - 1; i++) {
+ maxLen -= (params[i].count() + 1);
+ }
+ maxLen -= 2; // " :" last param separator;
+
+ if(params.last().count() > maxLen) {
+ return params.last().count() - maxLen;
+ } else {
+ return 0;
+ }
+ } else {
+ return 0;
+ }
+}
+
+void NetworkConnection::putCmd(const QString &cmd, const QList<QByteArray> ¶ms, const QByteArray &prefix) {
+ QByteArray msg;
+ if(cmd == "PRIVMSG" && params.count() > 1) {
+ int overrun = lastParamOverrun(cmd, params);
+ if(overrun) {
+ QList<QByteArray> paramCopy1 = params;
+ paramCopy1.removeLast();
+ QList<QByteArray> paramCopy2 = paramCopy1;
+
+ QByteArray lastPart = params.last();
+ QByteArray splitter(" .,-");
+ int maxSplitPos = params.last().count() - overrun;
+ int splitPos = -1;
+ for(int i = 0; i < splitter.size(); i++) {
+ splitPos = qMax(splitPos, lastPart.lastIndexOf(splitter[i], maxSplitPos));
+ }
+ if(splitPos <= 0) {
+ splitPos = maxSplitPos;
+ }
+
+ paramCopy1 << lastPart.left(splitPos);
+ paramCopy2 << lastPart.mid(splitPos);
+ putCmd(cmd, paramCopy1, prefix);
+ putCmd(cmd, paramCopy2, prefix);
+ return;
+ }
+ }
+
if(!prefix.isEmpty())
msg += ":" + prefix + " ";
- msg += cmd.toUpper();
-
+ msg += cmd.toUpper().toAscii();
+
for(int i = 0; i < params.size() - 1; i++) {
msg += " " + params[i];
}
putRawLine(msg);
}
+void NetworkConnection::sendPing() {
+ userInputHandler()->handlePing(BufferInfo(), QString());
+}
+
+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);
Q_UNUSED(prefix);
_msg = QString("Unknown Command: ") + cmd + params.join(" ");
}
+
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