+
+
+void Core::stopListening(const QString &reason)
+{
+ bool wasListening = false;
+ if (_server.isListening()) {
+ wasListening = true;
+ _server.close();
+ }
+ if (_v6server.isListening()) {
+ wasListening = true;
+ _v6server.close();
+ }
+ if (wasListening) {
+ if (reason.isEmpty())
+ quInfo() << "No longer listening for GUI clients.";
+ else
+ quInfo() << qPrintable(reason);
+ }
+}
+
+
+void Core::incomingConnection()
+{
+ QTcpServer *server = qobject_cast<QTcpServer *>(sender());
+ Q_ASSERT(server);
+ while (server->hasPendingConnections()) {
+ QTcpSocket *socket = server->nextPendingConnection();
+ RemotePeer *peer = new LegacyPeer(socket, this);
+
+ connect(peer, SIGNAL(disconnected()), SLOT(clientDisconnected()));
+ connect(peer, SIGNAL(dataReceived(QVariant)), SLOT(processClientMessage(QVariant)));
+ connect(peer, SIGNAL(error(QAbstractSocket::SocketError)), SLOT(socketError(QAbstractSocket::SocketError)));
+
+ clientInfo.insert(peer, QVariantMap());
+ quInfo() << qPrintable(tr("Client connected from")) << qPrintable(socket->peerAddress().toString());
+
+ if (!_configured) {
+ stopListening(tr("Closing server for basic setup."));
+ }
+ }
+}
+
+
+void Core::processClientMessage(const QVariant &data)
+{
+ RemotePeer *peer = qobject_cast<RemotePeer *>(sender());
+ if (!peer) {
+ qWarning() << Q_FUNC_INFO << "Message not sent by RemoteConnection!";
+ return;
+ }
+
+ QVariantMap msg = data.toMap();
+ if (!msg.contains("MsgType")) {
+ // Client is way too old, does not even use the current init format
+ qWarning() << qPrintable(tr("Antique client trying to connect... refusing."));
+ peer->close();
+ return;
+ }
+
+ // OK, so we have at least an init message format we can understand
+ if (msg["MsgType"] == "ClientInit") {
+ QVariantMap reply;
+
+ // Just version information -- check it!
+ uint ver = msg["ProtocolVersion"].toUInt();
+ if (ver < Quassel::buildInfo().coreNeedsProtocol) {
+ reply["MsgType"] = "ClientInitReject";
+ reply["Error"] = tr("<b>Your Quassel Client is too old!</b><br>"
+ "This core needs at least client/core protocol version %1.<br>"
+ "Please consider upgrading your client.").arg(Quassel::buildInfo().coreNeedsProtocol);
+ peer->writeSocketData(reply);
+ qWarning() << qPrintable(tr("Client")) << peer->description() << qPrintable(tr("too old, rejecting."));
+ peer->close();
+ return;
+ }
+
+ reply["ProtocolVersion"] = Quassel::buildInfo().protocolVersion;
+ reply["CoreVersion"] = Quassel::buildInfo().fancyVersionString;
+ reply["CoreDate"] = Quassel::buildInfo().buildDate;
+ reply["CoreStartTime"] = startTime(); // v10 clients don't necessarily parse this, see below
+
+ // FIXME: newer clients no longer use the hardcoded CoreInfo (for now), since it gets the
+ // time zone wrong. With the next protocol bump (10 -> 11), we should remove this
+ // or make it properly configurable.
+
+ int uptime = startTime().secsTo(QDateTime::currentDateTime().toUTC());
+ int updays = uptime / 86400; uptime %= 86400;
+ int uphours = uptime / 3600; uptime %= 3600;
+ int upmins = uptime / 60;
+ reply["CoreInfo"] = tr("<b>Quassel Core Version %1</b><br>"
+ "Built: %2<br>"
+ "Up %3d%4h%5m (since %6)").arg(Quassel::buildInfo().fancyVersionString)
+ .arg(Quassel::buildInfo().buildDate)
+ .arg(updays).arg(uphours, 2, 10, QChar('0')).arg(upmins, 2, 10, QChar('0')).arg(startTime().toString(Qt::TextDate));
+
+ reply["CoreFeatures"] = (int)Quassel::features();
+
+#ifdef HAVE_SSL
+ SslServer *sslServer = qobject_cast<SslServer *>(&_server);
+ QSslSocket *sslSocket = qobject_cast<QSslSocket *>(peer->socket());
+ bool supportSsl = sslServer && sslSocket && sslServer->isCertValid();
+#else
+ bool supportSsl = false;
+#endif
+
+#ifndef QT_NO_COMPRESS
+ bool supportsCompression = true;
+#else
+ bool supportsCompression = false;
+#endif
+
+ reply["SupportSsl"] = supportSsl;
+ reply["SupportsCompression"] = supportsCompression;
+ // switch to ssl/compression after client has been informed about our capabilities (see below)
+
+ reply["LoginEnabled"] = true;
+
+ // check if we are configured, start wizard otherwise
+ if (!_configured) {
+ reply["Configured"] = false;
+ QList<QVariant> backends;
+ foreach(Storage *backend, _storageBackends.values()) {
+ QVariantMap v;
+ v["DisplayName"] = backend->displayName();
+ v["Description"] = backend->description();
+ v["SetupKeys"] = backend->setupKeys();
+ v["SetupDefaults"] = backend->setupDefaults();
+ backends.append(v);
+ }
+ reply["StorageBackends"] = backends;
+ reply["LoginEnabled"] = false;
+ }
+ else {
+ reply["Configured"] = true;
+ }
+ clientInfo[peer] = msg; // store for future reference
+ reply["MsgType"] = "ClientInitAck";
+ peer->writeSocketData(reply);
+ peer->socket()->flush(); // ensure that the write cache is flushed before we switch to ssl
+
+#ifdef HAVE_SSL
+ // after we told the client that we are ssl capable we switch to ssl mode
+ if (supportSsl && msg["UseSsl"].toBool()) {
+ qDebug() << qPrintable(tr("Starting TLS for Client:")) << peer->description();
+ connect(sslSocket, SIGNAL(sslErrors(const QList<QSslError> &)), SLOT(sslErrors(const QList<QSslError> &)));
+ sslSocket->startServerEncryption();
+ }
+#endif
+
+#ifndef QT_NO_COMPRESS
+ if (supportsCompression && msg["UseCompression"].toBool()) {
+ peer->socket()->setProperty("UseCompression", true);
+ qDebug() << "Using compression for Client:" << qPrintable(peer->socket()->peerAddress().toString());
+ }
+#endif
+ }
+ else {
+ // for the rest, we need an initialized connection
+ if (!clientInfo.contains(peer)) {
+ QVariantMap reply;
+ reply["MsgType"] = "ClientLoginReject";
+ reply["Error"] = tr("<b>Client not initialized!</b><br>You need to send an init message before trying to login.");
+ peer->writeSocketData(reply);
+ qWarning() << qPrintable(tr("Client")) << qPrintable(peer->socket()->peerAddress().toString()) << qPrintable(tr("did not send an init message before trying to login, rejecting."));
+ peer->close(); return;
+ }
+ if (msg["MsgType"] == "CoreSetupData") {
+ QVariantMap reply;
+ QString result = setupCore(msg["SetupData"].toMap());
+ if (!result.isEmpty()) {
+ reply["MsgType"] = "CoreSetupReject";
+ reply["Error"] = result;
+ }
+ else {
+ reply["MsgType"] = "CoreSetupAck";
+ }
+ peer->writeSocketData(reply);
+ }
+ else if (msg["MsgType"] == "ClientLogin") {
+ QVariantMap reply;
+ UserId uid = _storage->validateUser(msg["User"].toString(), msg["Password"].toString());
+ if (uid == 0) {
+ reply["MsgType"] = "ClientLoginReject";
+ reply["Error"] = tr("<b>Invalid username or password!</b><br>The username/password combination you supplied could not be found in the database.");
+ peer->writeSocketData(reply);
+ return;
+ }
+ reply["MsgType"] = "ClientLoginAck";
+ peer->writeSocketData(reply);
+ quInfo() << qPrintable(tr("Client")) << qPrintable(peer->socket()->peerAddress().toString()) << qPrintable(tr("initialized and authenticated successfully as \"%1\" (UserId: %2).").arg(msg["User"].toString()).arg(uid.toInt()));
+ setupClientSession(peer, uid);
+ }
+ }
+}
+
+
+// Potentially called during the initialization phase (before handing the connection off to the session)
+void Core::clientDisconnected()
+{
+ RemotePeer *peer = qobject_cast<RemotePeer *>(sender());
+ Q_ASSERT(peer);
+
+ quInfo() << qPrintable(tr("Non-authed client disconnected.")) << qPrintable(peer->socket()->peerAddress().toString());
+ clientInfo.remove(peer);
+ peer->deleteLater();
+
+ // make server listen again if still not configured
+ if (!_configured) {
+ startListening();
+ }
+
+ // TODO remove unneeded sessions - if necessary/possible...
+ // Suggestion: kill sessions if they are not connected to any network and client.
+}
+
+
+void Core::setupClientSession(RemotePeer *peer, UserId uid)
+{
+ // From now on everything is handled by the client session
+ disconnect(peer, 0, this, 0);
+ peer->socket()->flush();
+ clientInfo.remove(peer);
+
+ // Find or create session for validated user
+ SessionThread *session;
+ if (sessions.contains(uid)) {
+ session = sessions[uid];
+ }
+ else {
+ session = createSession(uid);
+ if (!session) {
+ qWarning() << qPrintable(tr("Could not initialize session for client:")) << qPrintable(peer->socket()->peerAddress().toString());
+ peer->close();
+ return;
+ }
+ }
+
+ // as we are currently handling an event triggered by incoming data on this socket
+ // it is unsafe to directly move the socket to the client thread.
+ QCoreApplication::postEvent(this, new AddClientEvent(peer, uid));
+}
+
+
+void Core::customEvent(QEvent *event)
+{
+ if (event->type() == AddClientEventId) {
+ AddClientEvent *addClientEvent = static_cast<AddClientEvent *>(event);
+ addClientHelper(addClientEvent->peer, addClientEvent->userId);
+ return;
+ }
+}
+
+
+void Core::addClientHelper(RemotePeer *peer, UserId uid)
+{
+ // Find or create session for validated user
+ if (!sessions.contains(uid)) {
+ qWarning() << qPrintable(tr("Could not find a session for client:")) << qPrintable(peer->socket()->peerAddress().toString());
+ peer->close();
+ return;
+ }
+
+ SessionThread *session = sessions[uid];
+ session->addClient(peer);
+}
+
+
+void Core::setupInternalClientSession(InternalPeer *clientPeer)
+{
+ if (!_configured) {
+ stopListening();
+ setupCoreForInternalUsage();
+ }
+
+ UserId uid;
+ if (_storage) {
+ uid = _storage->internalUser();
+ }
+ else {
+ qWarning() << "Core::setupInternalClientSession(): You're trying to run monolithic Quassel with an unusable Backend! Go fix it!";
+ return;
+ }
+
+ InternalPeer *corePeer = new InternalPeer(this);
+ corePeer->setPeer(clientPeer);
+ clientPeer->setPeer(corePeer);
+
+ // Find or create session for validated user
+ SessionThread *sessionThread;
+ if (sessions.contains(uid))
+ sessionThread = sessions[uid];
+ else
+ sessionThread = createSession(uid);
+
+ sessionThread->addClient(corePeer);
+}
+
+
+SessionThread *Core::createSession(UserId uid, bool restore)
+{
+ if (sessions.contains(uid)) {
+ qWarning() << "Calling createSession() when a session for the user already exists!";
+ return 0;
+ }
+ SessionThread *sess = new SessionThread(uid, restore, this);
+ sessions[uid] = sess;
+ sess->start();
+ return sess;
+}
+
+
+#ifdef HAVE_SSL
+void Core::sslErrors(const QList<QSslError> &errors)
+{
+ Q_UNUSED(errors);
+ QSslSocket *socket = qobject_cast<QSslSocket *>(sender());
+ if (socket)
+ socket->ignoreSslErrors();
+}
+
+
+#endif
+
+void Core::socketError(QAbstractSocket::SocketError err)
+{
+ RemotePeer *peer = qobject_cast<RemotePeer *>(sender());
+ if (peer && err != QAbstractSocket::RemoteHostClosedError)
+ qWarning() << "Core::socketError()" << peer->socket() << err << peer->socket()->errorString();
+}
+
+
+// migration / backend selection
+bool Core::selectBackend(const QString &backend)
+{
+ // reregister all storage backends
+ registerStorageBackends();
+ if (!_storageBackends.contains(backend)) {
+ qWarning() << qPrintable(QString("Core::selectBackend(): unsupported backend: %1").arg(backend));
+ qWarning() << " supported backends are:" << qPrintable(QStringList(_storageBackends.keys()).join(", "));
+ return false;
+ }
+
+ Storage *storage = _storageBackends[backend];
+ QVariantMap settings = promptForSettings(storage);
+
+ Storage::State storageState = storage->init(settings);
+ switch (storageState) {
+ case Storage::IsReady:
+ saveBackendSettings(backend, settings);
+ qWarning() << "Switched backend to:" << qPrintable(backend);
+ qWarning() << "Backend already initialized. Skipping Migration";
+ return true;
+ case Storage::NotAvailable:
+ qCritical() << "Backend is not available:" << qPrintable(backend);
+ return false;
+ case Storage::NeedsSetup:
+ if (!storage->setup(settings)) {
+ qWarning() << qPrintable(QString("Core::selectBackend(): unable to setup backend: %1").arg(backend));
+ return false;
+ }
+
+ if (storage->init(settings) != Storage::IsReady) {
+ qWarning() << qPrintable(QString("Core::migrateBackend(): unable to initialize backend: %1").arg(backend));
+ return false;
+ }
+
+ saveBackendSettings(backend, settings);
+ qWarning() << "Switched backend to:" << qPrintable(backend);
+ break;
+ }
+
+ // let's see if we have a current storage object we can migrate from
+ AbstractSqlMigrationReader *reader = getMigrationReader(_storage);
+ AbstractSqlMigrationWriter *writer = getMigrationWriter(storage);
+ if (reader && writer) {
+ qDebug() << qPrintable(QString("Migrating Storage backend %1 to %2...").arg(_storage->displayName(), storage->displayName()));
+ delete _storage;
+ _storage = 0;
+ delete storage;
+ storage = 0;
+ if (reader->migrateTo(writer)) {
+ qDebug() << "Migration finished!";
+ saveBackendSettings(backend, settings);
+ return true;
+ }
+ return false;
+ qWarning() << qPrintable(QString("Core::migrateDb(): unable to migrate storage backend! (No migration writer for %1)").arg(backend));
+ }
+
+ // inform the user why we cannot merge
+ if (!_storage) {
+ qWarning() << "No currently active backend. Skipping migration.";
+ }
+ else if (!reader) {
+ qWarning() << "Currently active backend does not support migration:" << qPrintable(_storage->displayName());
+ }
+ if (writer) {
+ qWarning() << "New backend does not support migration:" << qPrintable(backend);
+ }
+
+ // so we were unable to merge, but let's create a user \o/
+ _storage = storage;
+ createUser();
+ return true;
+}
+
+
+void Core::createUser()
+{
+ QTextStream out(stdout);
+ QTextStream in(stdin);
+ out << "Add a new user:" << endl;
+ out << "Username: ";
+ out.flush();
+ QString username = in.readLine().trimmed();
+
+ disableStdInEcho();
+ out << "Password: ";
+ out.flush();
+ QString password = in.readLine().trimmed();
+ out << endl;
+ out << "Repeat Password: ";
+ out.flush();
+ QString password2 = in.readLine().trimmed();
+ out << endl;
+ enableStdInEcho();
+
+ if (password != password2) {
+ qWarning() << "Passwords don't match!";
+ return;
+ }
+ if (password.isEmpty()) {
+ qWarning() << "Password is empty!";
+ return;
+ }
+
+ if (_configured && _storage->addUser(username, password).isValid()) {
+ out << "Added user " << username << " successfully!" << endl;
+ }
+ else {
+ qWarning() << "Unable to add user:" << qPrintable(username);
+ }
+}
+
+
+void Core::changeUserPass(const QString &username)
+{
+ QTextStream out(stdout);
+ QTextStream in(stdin);
+ UserId userId = _storage->getUserId(username);
+ if (!userId.isValid()) {
+ out << "User " << username << " does not exist." << endl;
+ return;
+ }
+
+ out << "Change password for user: " << username << endl;
+
+ disableStdInEcho();
+ out << "New Password: ";
+ out.flush();
+ QString password = in.readLine().trimmed();
+ out << endl;
+ out << "Repeat Password: ";
+ out.flush();
+ QString password2 = in.readLine().trimmed();
+ out << endl;
+ enableStdInEcho();
+
+ if (password != password2) {
+ qWarning() << "Passwords don't match!";
+ return;
+ }
+ if (password.isEmpty()) {
+ qWarning() << "Password is empty!";
+ return;
+ }
+
+ if (_configured && _storage->updateUser(userId, password)) {
+ out << "Password changed successfully!" << endl;
+ }
+ else {
+ qWarning() << "Failed to change password!";
+ }
+}
+
+
+AbstractSqlMigrationReader *Core::getMigrationReader(Storage *storage)
+{
+ if (!storage)
+ return 0;
+
+ AbstractSqlStorage *sqlStorage = qobject_cast<AbstractSqlStorage *>(storage);
+ if (!sqlStorage) {
+ qDebug() << "Core::migrateDb(): only SQL based backends can be migrated!";
+ return 0;
+ }
+
+ return sqlStorage->createMigrationReader();
+}
+
+
+AbstractSqlMigrationWriter *Core::getMigrationWriter(Storage *storage)
+{
+ if (!storage)
+ return 0;
+
+ AbstractSqlStorage *sqlStorage = qobject_cast<AbstractSqlStorage *>(storage);
+ if (!sqlStorage) {
+ qDebug() << "Core::migrateDb(): only SQL based backends can be migrated!";
+ return 0;
+ }
+
+ return sqlStorage->createMigrationWriter();
+}
+
+
+void Core::saveBackendSettings(const QString &backend, const QVariantMap &settings)
+{
+ QVariantMap dbsettings;
+ dbsettings["Backend"] = backend;
+ dbsettings["ConnectionProperties"] = settings;
+ CoreSettings().setStorageSettings(dbsettings);
+}
+
+
+QVariantMap Core::promptForSettings(const Storage *storage)
+{
+ QVariantMap settings;
+
+ QStringList keys = storage->setupKeys();
+ if (keys.isEmpty())
+ return settings;
+
+ QTextStream out(stdout);
+ QTextStream in(stdin);
+ out << "Default values are in brackets" << endl;
+
+ QVariantMap defaults = storage->setupDefaults();
+ QString value;
+ foreach(QString key, keys) {
+ QVariant val;
+ if (defaults.contains(key)) {
+ val = defaults[key];
+ }
+ out << key;
+ if (!val.toString().isEmpty()) {
+ out << " (" << val.toString() << ")";
+ }
+ out << ": ";
+ out.flush();
+
+ bool noEcho = QString("password").toLower().startsWith(key.toLower());
+ if (noEcho) {
+ disableStdInEcho();
+ }
+ value = in.readLine().trimmed();
+ if (noEcho) {
+ out << endl;
+ enableStdInEcho();
+ }
+
+ if (!value.isEmpty()) {
+ switch (defaults[key].type()) {
+ case QVariant::Int:
+ val = QVariant(value.toInt());
+ break;
+ default:
+ val = QVariant(value);
+ }
+ }
+ settings[key] = val;
+ }
+ return settings;
+}
+
+
+#ifdef Q_OS_WIN32
+void Core::stdInEcho(bool on)
+{
+ HANDLE hStdin = GetStdHandle(STD_INPUT_HANDLE);
+ DWORD mode = 0;
+ GetConsoleMode(hStdin, &mode);
+ if (on)
+ mode |= ENABLE_ECHO_INPUT;
+ else
+ mode &= ~ENABLE_ECHO_INPUT;
+ SetConsoleMode(hStdin, mode);
+}
+
+
+#else
+void Core::stdInEcho(bool on)
+{
+ termios t;
+ tcgetattr(STDIN_FILENO, &t);
+ if (on)
+ t.c_lflag |= ECHO;
+ else
+ t.c_lflag &= ~ECHO;
+ tcsetattr(STDIN_FILENO, TCSANOW, &t);
+}
+
+
+#endif /* Q_OS_WIN32 */