/***************************************************************************
- * Copyright (C) 2005-2013 by the Quassel Project *
+ * Copyright (C) 2005-2018 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
+#include <QHostAddress>
+#include <QDataStream>
#include <QTcpSocket>
#include "legacypeer.h"
+#include "quassel.h"
+#include "serializers/serializers.h"
+
+/* version.inc is no longer used for this */
+const uint protocolVersion = 10;
+const uint coreNeedsProtocol = protocolVersion;
+const uint clientNeedsProtocol = protocolVersion;
using namespace Protocol;
-LegacyPeer::LegacyPeer(QTcpSocket *socket, QObject *parent)
- : RemotePeer(socket, parent),
- _blockSize(0),
+LegacyPeer::LegacyPeer(::AuthHandler *authHandler, QTcpSocket *socket, Compressor::CompressionLevel level, QObject *parent)
+ : RemotePeer(authHandler, socket, level, parent),
_useCompression(false)
{
- _stream.setDevice(socket);
- _stream.setVersion(QDataStream::Qt_4_2);
- connect(socket, SIGNAL(readyRead()), SLOT(socketDataAvailable()));
}
{
RemotePeer::setSignalProxy(proxy);
+ // FIXME only in compat mode
if (proxy) {
// enable compression now if requested - the initial handshake is uncompressed in the legacy protocol!
_useCompression = socket()->property("UseCompression").toBool();
+ if (_useCompression)
+ qDebug() << "Using compression for peer:" << qPrintable(socket()->peerAddress().toString());
}
}
-void LegacyPeer::socketDataAvailable()
+void LegacyPeer::processMessage(const QByteArray &msg)
{
- QVariant item;
- while (readSocketData(item)) {
- // if no sigproxy is set, we're in handshake mode and let the data be handled elsewhere
- if (!signalProxy())
- emit dataReceived(item);
- else
- handlePackedFunc(item);
- }
-}
-
-
-bool LegacyPeer::readSocketData(QVariant &item)
-{
- if (_blockSize == 0) {
- if (socket()->bytesAvailable() < 4)
- return false;
- _stream >> _blockSize;
- }
-
- if (_blockSize > 1 << 22) {
- close("Peer tried to send package larger than max package size!");
- return false;
- }
-
- if (_blockSize == 0) {
- close("Peer tried to send 0 byte package!");
- return false;
- }
-
- if (socket()->bytesAvailable() < _blockSize) {
- emit transferProgress(socket()->bytesAvailable(), _blockSize);
- return false;
- }
-
- emit transferProgress(_blockSize, _blockSize);
-
- _blockSize = 0;
+ QDataStream stream(msg);
+ stream.setVersion(QDataStream::Qt_4_2);
+ QVariant item;
if (_useCompression) {
QByteArray rawItem;
- _stream >> rawItem;
+ if (!Serializers::deserialize(stream, features(), rawItem)) {
+ close("Peer sent corrupt data: unable to load QVariant!");
+ return;
+ }
int nbytes = rawItem.size();
if (nbytes <= 4) {
const char *data = rawItem.constData();
if (nbytes < 4 || (data[0] != 0 || data[1] != 0 || data[2] != 0 || data[3] != 0)) {
close("Peer sent corrupted compressed data!");
- return false;
+ return;
}
}
QDataStream itemStream(&rawItem, QIODevice::ReadOnly);
itemStream.setVersion(QDataStream::Qt_4_2);
- itemStream >> item;
- }
- else {
- _stream >> item;
+ if (!Serializers::deserialize(itemStream, features(), item)) {
+ close("Peer sent corrupt data: unable to load QVariant!");
+ return;
+ }
+ } else {
+ if (!Serializers::deserialize(stream, features(), item)) {
+ close("Peer sent corrupt data: unable to load QVariant!");
+ return;
+ }
}
- if (!item.isValid()) {
+ if (stream.status() != QDataStream::Ok || !item.isValid()) {
close("Peer sent corrupt data: unable to load QVariant!");
- return false;
+ return;
}
- return true;
+ // if no sigproxy is set, we're in handshake mode and let the data be handled elsewhere
+ if (!signalProxy())
+ handleHandshakeMessage(item);
+ else
+ handlePackedFunc(item);
}
-void LegacyPeer::writeSocketData(const QVariant &item)
+void LegacyPeer::writeMessage(const QVariant &item)
{
- if (!socket()->isOpen()) {
- qWarning() << Q_FUNC_INFO << "Can't write to a closed socket!";
- return;
- }
-
QByteArray block;
QDataStream out(&block, QIODevice::WriteOnly);
out.setVersion(QDataStream::Qt_4_2);
out << item;
}
- _stream << block; // also writes the length as part of the serialization format
+ writeMessage(block);
+}
+
+
+/*** Handshake messages ***/
+
+/* These messages are transmitted during handshake phase, which in case of the legacy protocol means they have
+ * a structure different from those being used after the handshake.
+ * Also, the legacy handshake does not fully match the redesigned one, so we'll have to do various mappings here.
+ */
+
+void LegacyPeer::handleHandshakeMessage(const QVariant &msg)
+{
+ QVariantMap m = msg.toMap();
+
+ QString msgType = m["MsgType"].toString();
+ if (msgType.isEmpty()) {
+ emit protocolError(tr("Invalid handshake message!"));
+ return;
+ }
+
+ if (msgType == "ClientInit") {
+ // FIXME only in compat mode
+ uint ver = m["ProtocolVersion"].toUInt();
+ if (ver < coreNeedsProtocol) {
+ emit protocolVersionMismatch((int)ver, (int)coreNeedsProtocol);
+ return;
+ }
+
+#ifndef QT_NO_COMPRESS
+ // FIXME only in compat mode
+ if (m["UseCompression"].toBool()) {
+ socket()->setProperty("UseCompression", true);
+ }
+#endif
+ handle(RegisterClient{Quassel::Features{m["FeatureList"].toStringList(), Quassel::LegacyFeatures(m["Features"].toUInt())},
+ m["ClientVersion"].toString(),
+ m["ClientDate"].toString(),
+ m["UseSsl"].toBool()});
+ }
+
+ else if (msgType == "ClientInitReject") {
+ handle(ClientDenied(m["Error"].toString()));
+ }
+
+ else if (msgType == "ClientInitAck") {
+ // FIXME only in compat mode
+ uint ver = m["ProtocolVersion"].toUInt(); // actually an UInt
+ if (ver < clientNeedsProtocol) {
+ emit protocolVersionMismatch((int)ver, (int)clientNeedsProtocol);
+ return;
+ }
+#ifndef QT_NO_COMPRESS
+ if (m["SupportsCompression"].toBool())
+ socket()->setProperty("UseCompression", true);
+#endif
+
+ handle(ClientRegistered{Quassel::Features{m["FeatureList"].toStringList(), Quassel::LegacyFeatures(m["CoreFeatures"].toUInt())},
+ m["Configured"].toBool(),
+ m["StorageBackends"].toList(),
+ m["Authenticators"].toList(),
+ m["SupportSsl"].toBool()});
+ }
+
+ else if (msgType == "CoreSetupData") {
+ QVariantMap map = m["SetupData"].toMap();
+ handle(SetupData(map["AdminUser"].toString(), map["AdminPasswd"].toString(), map["Backend"].toString(), map["ConnectionProperties"].toMap(), map["Authenticator"].toString(), map["AuthProperties"].toMap()));
+ }
+
+ else if (msgType == "CoreSetupReject") {
+ handle(SetupFailed(m["Error"].toString()));
+ }
+
+ else if (msgType == "CoreSetupAck") {
+ handle(SetupDone());
+ }
+
+ else if (msgType == "ClientLogin") {
+ handle(Login(m["User"].toString(), m["Password"].toString()));
+ }
+
+ else if (msgType == "ClientLoginReject") {
+ handle(LoginFailed(m["Error"].toString()));
+ }
+
+ else if (msgType == "ClientLoginAck") {
+ handle(LoginSuccess());
+ }
+
+ else if (msgType == "SessionInit") {
+ QVariantMap map = m["SessionState"].toMap();
+ handle(SessionState(map["Identities"].toList(), map["BufferInfos"].toList(), map["NetworkIds"].toList()));
+ }
+
+ else {
+ emit protocolError(tr("Unknown protocol message of type %1").arg(msgType));
+ }
+}
+
+
+void LegacyPeer::dispatch(const RegisterClient &msg) {
+ QVariantMap m;
+ m["MsgType"] = "ClientInit";
+ m["Features"] = static_cast<quint32>(msg.features.toLegacyFeatures());
+ m["FeatureList"] = msg.features.toStringList();
+ m["ClientVersion"] = msg.clientVersion;
+ m["ClientDate"] = msg.buildDate;
+
+ // FIXME only in compat mode
+ m["ProtocolVersion"] = protocolVersion;
+ m["UseSsl"] = msg.sslSupported;
+#ifndef QT_NO_COMPRESS
+ m["UseCompression"] = true;
+#else
+ m["UseCompression"] = false;
+#endif
+
+ writeMessage(m);
+}
+
+
+void LegacyPeer::dispatch(const ClientDenied &msg) {
+ QVariantMap m;
+ m["MsgType"] = "ClientInitReject";
+ m["Error"] = msg.errorString;
+
+ writeMessage(m);
+}
+
+
+void LegacyPeer::dispatch(const ClientRegistered &msg) {
+ QVariantMap m;
+ m["MsgType"] = "ClientInitAck";
+ if (hasFeature(Quassel::Feature::ExtendedFeatures)) {
+ m["FeatureList"] = msg.features.toStringList();
+ }
+ else {
+ m["CoreFeatures"] = static_cast<quint32>(msg.features.toLegacyFeatures());
+ }
+ m["StorageBackends"] = msg.backendInfo;
+ if (hasFeature(Quassel::Feature::Authenticators)) {
+ m["Authenticators"] = msg.authenticatorInfo;
+ }
+
+ // FIXME only in compat mode
+ m["ProtocolVersion"] = protocolVersion;
+ m["SupportSsl"] = msg.sslSupported;
+ m["SupportsCompression"] = socket()->property("UseCompression").toBool(); // this property gets already set in the ClientInit handler
+
+ // This is only used for display by really old v10 clients (pre-0.5), and we no longer set this
+ m["CoreInfo"] = QString();
+
+ m["LoginEnabled"] = m["Configured"] = msg.coreConfigured;
+
+ writeMessage(m);
+}
+
+
+void LegacyPeer::dispatch(const SetupData &msg)
+{
+ QVariantMap map;
+ map["AdminUser"] = msg.adminUser;
+ map["AdminPasswd"] = msg.adminPassword;
+ map["Backend"] = msg.backend;
+ map["ConnectionProperties"] = msg.setupData;
+
+ // Auth backend properties.
+ map["Authenticator"] = msg.authenticator;
+ map["AuthProperties"] = msg.authSetupData;
+
+ QVariantMap m;
+ m["MsgType"] = "CoreSetupData";
+ m["SetupData"] = map;
+ writeMessage(m);
+}
+
+
+void LegacyPeer::dispatch(const SetupFailed &msg)
+{
+ QVariantMap m;
+ m["MsgType"] = "CoreSetupReject";
+ m["Error"] = msg.errorString;
+
+ writeMessage(m);
+}
+
+
+void LegacyPeer::dispatch(const SetupDone &msg)
+{
+ Q_UNUSED(msg)
+
+ QVariantMap m;
+ m["MsgType"] = "CoreSetupAck";
+
+ writeMessage(m);
+}
+
+
+void LegacyPeer::dispatch(const Login &msg)
+{
+ QVariantMap m;
+ m["MsgType"] = "ClientLogin";
+ m["User"] = msg.user;
+ m["Password"] = msg.password;
+
+ writeMessage(m);
+}
+
+
+void LegacyPeer::dispatch(const LoginFailed &msg)
+{
+ QVariantMap m;
+ m["MsgType"] = "ClientLoginReject";
+ m["Error"] = msg.errorString;
+
+ writeMessage(m);
+}
+
+
+void LegacyPeer::dispatch(const LoginSuccess &msg)
+{
+ Q_UNUSED(msg)
+
+ QVariantMap m;
+ m["MsgType"] = "ClientLoginAck";
+
+ writeMessage(m);
+}
+
+
+void LegacyPeer::dispatch(const SessionState &msg)
+{
+ QVariantMap m;
+ m["MsgType"] = "SessionInit";
+
+ QVariantMap map;
+ map["BufferInfos"] = msg.bufferInfos;
+ map["NetworkIds"] = msg.networkIds;
+ map["Identities"] = msg.identities;
+ m["SessionState"] = map;
+
+ writeMessage(m);
}
+/*** Standard messages ***/
+
void LegacyPeer::handlePackedFunc(const QVariant &packedFunc)
{
QVariantList params(packedFunc.toList());
return;
}
+ // TODO: make sure that this is a valid request type
RequestType requestType = (RequestType)params.takeFirst().value<int>();
switch (requestType) {
case Sync: {
QByteArray className = params[0].toByteArray();
QString objectName = params[1].toString();
QVariantMap initData = params[2].toMap();
+
+ // we need to special-case IrcUsersAndChannels here, since the format changed
+ if (className == "Network")
+ fromLegacyIrcUsersAndChannels(initData);
handle(Protocol::InitData(className, objectName, initData));
break;
}
void LegacyPeer::dispatch(const Protocol::InitData &msg)
{
- dispatchPackedFunc(QVariantList() << (qint16)InitData << msg.className << msg.objectName << msg.initData);
+ // We need to special-case IrcUsersAndChannels, as the format changed
+ if (msg.className == "Network") {
+ QVariantMap initData = msg.initData;
+ toLegacyIrcUsersAndChannels(initData);
+ dispatchPackedFunc(QVariantList() << (qint16)InitData << msg.className << msg.objectName << initData);
+ }
+ else
+ dispatchPackedFunc(QVariantList() << (qint16)InitData << msg.className << msg.objectName << msg.initData);
}
void LegacyPeer::dispatchPackedFunc(const QVariantList &packedFunc)
{
- writeSocketData(QVariant(packedFunc));
+ writeMessage(QVariant(packedFunc));
+}
+
+
+// Handle the changed format for Network's initData
+// cf. Network::initIrcUsersAndChannels()
+void LegacyPeer::fromLegacyIrcUsersAndChannels(QVariantMap &initData)
+{
+ const QVariantMap &legacyMap = initData["IrcUsersAndChannels"].toMap();
+ QVariantMap newMap;
+
+ QHash<QString, QVariantList> users;
+ foreach(const QVariant &v, legacyMap["users"].toMap().values()) {
+ const QVariantMap &map = v.toMap();
+ foreach(const QString &key, map.keys())
+ users[key] << map[key];
+ }
+ QVariantMap userMap;
+ foreach(const QString &key, users.keys())
+ userMap[key] = users[key];
+ newMap["Users"] = userMap;
+
+ QHash<QString, QVariantList> channels;
+ foreach(const QVariant &v, legacyMap["channels"].toMap().values()) {
+ const QVariantMap &map = v.toMap();
+ foreach(const QString &key, map.keys())
+ channels[key] << map[key];
+ }
+ QVariantMap channelMap;
+ foreach(const QString &key, channels.keys())
+ channelMap[key] = channels[key];
+ newMap["Channels"] = channelMap;
+
+ initData["IrcUsersAndChannels"] = newMap;
+}
+
+
+void LegacyPeer::toLegacyIrcUsersAndChannels(QVariantMap &initData)
+{
+ const QVariantMap &usersAndChannels = initData["IrcUsersAndChannels"].toMap();
+ QVariantMap legacyMap;
+
+ // toMap() and toList() are cheap, so no need to copy to a hash
+
+ QVariantMap userMap;
+ const QVariantMap &users = usersAndChannels["Users"].toMap();
+
+ int size = users["nick"].toList().size(); // we know this key exists
+ for(int i = 0; i < size; i++) {
+ QVariantMap map;
+ foreach(const QString &key, users.keys())
+ map[key] = users[key].toList().at(i);
+ QString hostmask = QString("%1!%2@%3").arg(map["nick"].toString(), map["user"].toString(), map["host"].toString());
+ userMap[hostmask.toLower()] = map;
+ }
+ legacyMap["users"] = userMap;
+
+ QVariantMap channelMap;
+ const QVariantMap &channels = usersAndChannels["Channels"].toMap();
+
+ size = channels["name"].toList().size();
+ for(int i = 0; i < size; i++) {
+ QVariantMap map;
+ foreach(const QString &key, channels.keys())
+ map[key] = channels[key].toList().at(i);
+ channelMap[map["name"].toString().toLower()] = map;
+ }
+ legacyMap["channels"] = channelMap;
+
+ initData["IrcUsersAndChannels"] = legacyMap;
}
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