/***************************************************************************
- * Copyright (C) 2005-07 by The Quassel IRC Development Team *
+ * Copyright (C) 2005-2018 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
+ * (at your option) version 3. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
+#include <algorithm>
+
+#include <QCoreApplication>
+
#include "core.h"
+#include "coreauthhandler.h"
#include "coresession.h"
+#include "coresettings.h"
+#include "internalpeer.h"
+#include "logmessage.h"
+#include "network.h"
+#include "postgresqlstorage.h"
+#include "quassel.h"
+#include "sqlauthenticator.h"
#include "sqlitestorage.h"
+#include "types.h"
#include "util.h"
-Core *Core::instanceptr = 0;
+#ifdef HAVE_LDAP
+# include "ldapauthenticator.h"
+#endif
+
+// migration related
+#include <QFile>
+#ifdef Q_OS_WIN
+# include <windows.h>
+#else
+# include <unistd.h>
+# include <termios.h>
+#endif /* Q_OS_WIN */
+
+// ==============================
+// Custom Events
+// ==============================
+const int Core::AddClientEventId = QEvent::registerEventType();
+
+class AddClientEvent : public QEvent
+{
+public:
+ AddClientEvent(RemotePeer *p, UserId uid) : QEvent(QEvent::Type(Core::AddClientEventId)), peer(p), userId(uid) {}
+ RemotePeer *peer;
+ UserId userId;
+};
+
+
+// ==============================
+// Core
+// ==============================
+
+Core::Core()
+ : Singleton<Core>{this}
+{
+ Q_INIT_RESOURCE(sql);
+
+ // Parent all QObject-derived attributes, so when the Core instance gets moved into another
+ // thread, they get moved with it
+ _server.setParent(this);
+ _v6server.setParent(this);
+ _storageSyncTimer.setParent(this);
+}
+
-Core * Core::instance() {
- if(instanceptr) return instanceptr;
- instanceptr = new Core();
- instanceptr->init();
- return instanceptr;
+Core::~Core()
+{
+ qDeleteAll(_connectingClients);
+ qDeleteAll(_sessions);
+ syncStorage();
}
-void Core::destroy() {
- //instanceptr->deleteLater();
- delete instanceptr;
- instanceptr = 0;
+
+void Core::init()
+{
+ _startTime = QDateTime::currentDateTime().toUTC(); // for uptime :)
+
+ // check settings version
+ // so far, we only have 1
+ CoreSettings s;
+ if (s.version() != 1) {
+ throw ExitException{EXIT_FAILURE, tr("Invalid core settings version!")};
+ }
+
+ // Set up storage and authentication backends
+ registerStorageBackends();
+ registerAuthenticators();
+
+ QProcessEnvironment environment = QProcessEnvironment::systemEnvironment();
+ bool config_from_environment = Quassel::isOptionSet("config-from-environment");
+
+ QString db_backend;
+ QVariantMap db_connectionProperties;
+
+ QString auth_authenticator;
+ QVariantMap auth_properties;
+
+ bool writeError = false;
+
+ if (config_from_environment) {
+ db_backend = environment.value("DB_BACKEND");
+ auth_authenticator = environment.value("AUTH_AUTHENTICATOR");
+ }
+ else {
+ CoreSettings cs;
+
+ QVariantMap dbsettings = cs.storageSettings().toMap();
+ db_backend = dbsettings.value("Backend").toString();
+ db_connectionProperties = dbsettings.value("ConnectionProperties").toMap();
+
+ QVariantMap authSettings = cs.authSettings().toMap();
+ auth_authenticator = authSettings.value("Authenticator", "Database").toString();
+ auth_properties = authSettings.value("AuthProperties").toMap();
+
+ writeError = !cs.isWritable();
+ }
+
+ try {
+ _configured = initStorage(db_backend, db_connectionProperties, environment, config_from_environment);
+ if (_configured) {
+ _configured = initAuthenticator(auth_authenticator, auth_properties, environment, config_from_environment);
+ }
+ }
+ catch (ExitException) {
+ // Try again later
+ _configured = false;
+ }
+
+ if (Quassel::isOptionSet("select-backend") || Quassel::isOptionSet("select-authenticator")) {
+ bool success{true};
+ if (Quassel::isOptionSet("select-backend")) {
+ success &= selectBackend(Quassel::optionValue("select-backend"));
+ }
+ if (Quassel::isOptionSet("select-authenticator")) {
+ success &= selectAuthenticator(Quassel::optionValue("select-authenticator"));
+ }
+ throw ExitException{success ? EXIT_SUCCESS : EXIT_FAILURE};
+ }
+
+ if (!_configured) {
+ if (config_from_environment) {
+ try {
+ _configured = initStorage(db_backend, db_connectionProperties, environment, config_from_environment, true);
+ if (_configured) {
+ _configured = initAuthenticator(auth_authenticator, auth_properties, environment, config_from_environment, true);
+ }
+ }
+ catch (ExitException e) {
+ throw ExitException{EXIT_FAILURE, tr("Cannot configure from environment: %1").arg(e.errorString)};
+ }
+
+ if (!_configured) {
+ throw ExitException{EXIT_FAILURE, tr("Cannot configure from environment!")};
+ }
+ }
+ else {
+ if (_registeredStorageBackends.empty()) {
+ throw ExitException{EXIT_FAILURE,
+ tr("Could not initialize any storage backend! Exiting...\n"
+ "Currently, Quassel supports SQLite3 and PostgreSQL. You need to build your\n"
+ "Qt library with the sqlite or postgres plugin enabled in order for quasselcore\n"
+ "to work.")};
+ }
+
+ if (writeError) {
+ throw ExitException{EXIT_FAILURE, tr("Cannot write quasselcore configuration; probably a permission problem.")};
+ }
+
+ quInfo() << "Core is currently not configured! Please connect with a Quassel Client for basic setup.";
+ }
+ }
+ else {
+ if (Quassel::isOptionSet("add-user")) {
+ bool success = createUser();
+ throw ExitException{success ? EXIT_SUCCESS : EXIT_FAILURE};
+ }
+
+ if (Quassel::isOptionSet("change-userpass")) {
+ bool success = changeUserPass(Quassel::optionValue("change-userpass"));
+ throw ExitException{success ? EXIT_SUCCESS : EXIT_FAILURE};
+ }
+
+ _strictIdentEnabled = Quassel::isOptionSet("strict-ident");
+ if (_strictIdentEnabled) {
+ cacheSysIdent();
+ }
+
+ if (Quassel::isOptionSet("oidentd")) {
+ _oidentdConfigGenerator = new OidentdConfigGenerator(this);
+ }
+
+
+ if (Quassel::isOptionSet("ident-daemon")) {
+ _identServer = new IdentServer(this);
+ }
+
+ Quassel::registerReloadHandler([]() {
+ // Currently, only reloading SSL certificates and the sysident cache is supported
+ if (Core::instance()) {
+ Core::instance()->cacheSysIdent();
+ Core::instance()->reloadCerts();
+ return true;
+ }
+ return false;
+ });
+
+ connect(&_storageSyncTimer, &QTimer::timeout, this, &Core::syncStorage);
+ _storageSyncTimer.start(10 * 60 * 1000); // 10 minutes
+ }
+
+ connect(&_server, &QTcpServer::newConnection, this, &Core::incomingConnection);
+ connect(&_v6server, &QTcpServer::newConnection, this, &Core::incomingConnection);
+
+ if (!startListening()) {
+ throw ExitException{EXIT_FAILURE, tr("Cannot open port for listening!")};
+ }
+
+ if (_configured && !Quassel::isOptionSet("norestore")) {
+ Core::restoreState();
+ }
+
+ _initialized = true;
+
+ if (_pendingInternalConnection) {
+ connectInternalPeer(_pendingInternalConnection);
+ _pendingInternalConnection = {};
+ }
}
-Core::Core() {
+void Core::initAsync()
+{
+ try {
+ init();
+ }
+ catch (ExitException e) {
+ emit exitRequested(e.exitCode, e.errorString);
+ }
}
-void Core::init() {
- if(!SqliteStorage::isAvailable()) {
- qFatal("Sqlite is currently required! Please make sure your Qt library has sqlite support enabled.");
- }
- //SqliteStorage::init();
- storage = new SqliteStorage();
- connect(&server, SIGNAL(newConnection()), this, SLOT(incomingConnection()));
- startListening(); // FIXME make configurable
- guiUser = 0;
+
+void Core::shutdown()
+{
+ quInfo() << "Core shutting down...";
+
+ saveState();
+
+ for (auto &&client : _connectingClients) {
+ client->deleteLater();
+ }
+ _connectingClients.clear();
+
+ if (_sessions.isEmpty()) {
+ emit shutdownComplete();
+ return;
+ }
+
+ for (auto &&session : _sessions) {
+ connect(session, &SessionThread::shutdownComplete, this, &Core::onSessionShutdown);
+ session->shutdown();
+ }
}
-Core::~Core() {
- //foreach(QTcpSocket *sock, validClients.keys()) {
- // delete sock;
- //}
- qDeleteAll(sessions);
- delete storage;
+
+void Core::onSessionShutdown(SessionThread *session)
+{
+ _sessions.take(_sessions.key(session))->deleteLater();
+ if (_sessions.isEmpty()) {
+ quInfo() << "Core shutdown complete!";
+ emit shutdownComplete();
+ }
}
-CoreSession *Core::session(UserId uid) {
- Core *core = instance();
- if(core->sessions.contains(uid)) return core->sessions[uid];
- else return 0;
+
+/*** Session Restore ***/
+
+void Core::saveState()
+{
+ if (_storage) {
+ QVariantList activeSessions;
+ for (auto &&user : instance()->_sessions.keys())
+ activeSessions << QVariant::fromValue<UserId>(user);
+ _storage->setCoreState(activeSessions);
+ }
}
-CoreSession *Core::localSession() {
- Core *core = instance();
- if(core->guiUser && core->sessions.contains(core->guiUser)) return core->sessions[core->guiUser];
- else return 0;
+
+void Core::restoreState()
+{
+ if (!_configured) {
+ quWarning() << qPrintable(tr("Cannot restore a state for an unconfigured core!"));
+ return;
+ }
+ if (_sessions.count()) {
+ quWarning() << qPrintable(tr("Calling restoreState() even though active sessions exist!"));
+ return;
+ }
+
+ CoreSettings s;
+ /* We don't check, since we are at the first version since switching to Git
+ uint statever = s.coreState().toMap()["CoreStateVersion"].toUInt();
+ if(statever < 1) {
+ quWarning() << qPrintable(tr("Core state too old, ignoring..."));
+ return;
+ }
+ */
+
+ const QList<QVariant> &activeSessionsFallback = s.coreState().toMap()["ActiveSessions"].toList();
+ QVariantList activeSessions = instance()->_storage->getCoreState(activeSessionsFallback);
+
+ if (activeSessions.count() > 0) {
+ quInfo() << "Restoring previous core state...";
+ for(auto &&v : activeSessions) {
+ UserId user = v.value<UserId>();
+ sessionForUser(user, true);
+ }
+ }
}
-CoreSession *Core::createSession(UserId uid) {
- Core *core = instance();
- Q_ASSERT(!core->sessions.contains(uid));
- CoreSession *sess = new CoreSession(uid, core->storage);
- core->sessions[uid] = sess;
- //connect(sess, SIGNAL(proxySignal(CoreSignal, QVariant, QVariant, QVariant)), core, SLOT(recvProxySignal(CoreSignal, QVariant, QVariant, QVariant)));
- return sess;
+
+/*** Core Setup ***/
+
+QString Core::setup(const QString &adminUser, const QString &adminPassword, const QString &backend, const QVariantMap &setupData, const QString &authenticator, const QVariantMap &authSetupData)
+{
+ return instance()->setupCore(adminUser, adminPassword, backend, setupData, authenticator, authSetupData);
}
-bool Core::startListening(uint port) {
- if(!server.listen(QHostAddress::Any, port)) {
- qWarning(QString(QString("Could not open GUI client port %1: %2").arg(port).arg(server.errorString())).toAscii());
+QString Core::setupCore(const QString &adminUser, const QString &adminPassword, const QString &backend, const QVariantMap &setupData, const QString &authenticator, const QVariantMap &authSetupData)
+{
+ if (_configured)
+ return tr("Core is already configured! Not configuring again...");
+
+ if (adminUser.isEmpty() || adminPassword.isEmpty()) {
+ return tr("Admin user or password not set.");
+ }
+ try {
+ if (!(_configured = initStorage(backend, setupData, {}, false, true))) {
+ return tr("Could not setup storage!");
+ }
+
+ quInfo() << "Selected authenticator:" << authenticator;
+ if (!(_configured = initAuthenticator(authenticator, authSetupData, {}, false, true)))
+ {
+ return tr("Could not setup authenticator!");
+ }
+ }
+ catch (ExitException e) {
+ // Event loop is running, so trigger an exit rather than throwing an exception
+ QCoreApplication::exit(e.exitCode);
+ return e.errorString.isEmpty() ? tr("Fatal failure while trying to setup, terminating") : e.errorString;
+ }
+
+ if (!saveBackendSettings(backend, setupData)) {
+ return tr("Could not save backend settings, probably a permission problem.");
+ }
+ saveAuthenticatorSettings(authenticator, authSetupData);
+
+ quInfo() << qPrintable(tr("Creating admin user..."));
+ _storage->addUser(adminUser, adminPassword);
+ cacheSysIdent();
+ startListening(); // TODO check when we need this
+ return QString();
+}
+
+
+QString Core::setupCoreForInternalUsage()
+{
+ Q_ASSERT(!_registeredStorageBackends.empty());
+
+ qsrand(QDateTime::currentDateTime().toMSecsSinceEpoch());
+ int pass = 0;
+ for (int i = 0; i < 10; i++) {
+ pass *= 10;
+ pass += qrand() % 10;
+ }
+
+ // mono client currently needs sqlite
+ return setupCore("AdminUser", QString::number(pass), "SQLite", QVariantMap(), "Database", QVariantMap());
+}
+
+
+/*** Storage Handling ***/
+
+template<typename Storage>
+void Core::registerStorageBackend()
+{
+ auto backend = makeDeferredShared<Storage>(this);
+ if (backend->isAvailable())
+ _registeredStorageBackends.emplace_back(std::move(backend));
+ else
+ backend->deleteLater();
+}
+
+
+void Core::registerStorageBackends()
+{
+ if (_registeredStorageBackends.empty()) {
+ registerStorageBackend<SqliteStorage>();
+ registerStorageBackend<PostgreSqlStorage>();
+ }
+}
+
+
+DeferredSharedPtr<Storage> Core::storageBackend(const QString &backendId) const
+{
+ auto it = std::find_if(_registeredStorageBackends.begin(), _registeredStorageBackends.end(),
+ [backendId](const DeferredSharedPtr<Storage> &backend) {
+ return backend->displayName() == backendId;
+ });
+ return it != _registeredStorageBackends.end() ? *it : nullptr;
+}
+
+
+bool Core::initStorage(const QString &backend, const QVariantMap &settings,
+ const QProcessEnvironment &environment, bool loadFromEnvironment, bool setup)
+{
+ if (backend.isEmpty()) {
+ quWarning() << "No storage backend selected!";
+ return false;
+ }
+
+ auto storage = storageBackend(backend);
+ if (!storage) {
+ qCritical() << "Selected storage backend is not available:" << backend;
+ return false;
+ }
+
+ connect(storage.get(), &Storage::dbUpgradeInProgress, this, &Core::dbUpgradeInProgress);
+
+ Storage::State storageState = storage->init(settings, environment, loadFromEnvironment);
+ switch (storageState) {
+ case Storage::NeedsSetup:
+ if (!setup)
+ return false; // trigger setup process
+ if (storage->setup(settings, environment, loadFromEnvironment))
+ return initStorage(backend, settings, environment, loadFromEnvironment, false);
+ return false;
+
+ case Storage::NotAvailable:
+ if (!setup) {
+ // If initialization wasn't successful, we quit to keep from coming up unconfigured
+ throw ExitException{EXIT_FAILURE, tr("Selected storage backend %1 is not available.").arg(backend)};
+ }
+ qCritical() << "Selected storage backend is not available:" << backend;
+ return false;
+
+ case Storage::IsReady:
+ // delete all other backends
+ _registeredStorageBackends.clear();
+ connect(storage.get(), &Storage::bufferInfoUpdated,
+ this, &Core::bufferInfoUpdated);
+ break;
+ }
+ _storage = std::move(storage);
+ return true;
+}
+
+
+void Core::syncStorage()
+{
+ if (_storage)
+ _storage->sync();
+}
+
+
+/*** Storage Access ***/
+bool Core::createNetwork(UserId user, NetworkInfo &info)
+{
+ NetworkId networkId = instance()->_storage->createNetwork(user, info);
+ if (!networkId.isValid())
+ return false;
+
+ info.networkId = networkId;
+ return true;
+}
+
+
+/*** Authenticators ***/
+
+// Authentication handling, now independent from storage.
+template<typename Authenticator>
+void Core::registerAuthenticator()
+{
+ auto authenticator = makeDeferredShared<Authenticator>(this);
+ if (authenticator->isAvailable())
+ _registeredAuthenticators.emplace_back(std::move(authenticator));
+ else
+ authenticator->deleteLater();
+}
+
+
+void Core::registerAuthenticators()
+{
+ if (_registeredAuthenticators.empty()) {
+ registerAuthenticator<SqlAuthenticator>();
+#ifdef HAVE_LDAP
+ registerAuthenticator<LdapAuthenticator>();
+#endif
+ }
+}
+
+
+DeferredSharedPtr<Authenticator> Core::authenticator(const QString &backendId) const
+{
+ auto it = std::find_if(_registeredAuthenticators.begin(), _registeredAuthenticators.end(),
+ [backendId](const DeferredSharedPtr<Authenticator> &authenticator) {
+ return authenticator->backendId() == backendId;
+ });
+ return it != _registeredAuthenticators.end() ? *it : nullptr;
+}
+
+
+// FIXME: Apparently, this is the legacy way of initting storage backends?
+// If there's a not-legacy way, it should be used here
+bool Core::initAuthenticator(const QString &backend, const QVariantMap &settings,
+ const QProcessEnvironment &environment, bool loadFromEnvironment,
+ bool setup)
+{
+ if (backend.isEmpty()) {
+ quWarning() << "No authenticator selected!";
+ return false;
+ }
+
+ auto auth = authenticator(backend);
+ if (!auth) {
+ qCritical() << "Selected auth backend is not available:" << backend;
+ return false;
+ }
+
+ Authenticator::State authState = auth->init(settings, environment, loadFromEnvironment);
+ switch (authState) {
+ case Authenticator::NeedsSetup:
+ if (!setup)
+ return false; // trigger setup process
+ if (auth->setup(settings, environment, loadFromEnvironment))
+ return initAuthenticator(backend, settings, environment, loadFromEnvironment, false);
+ return false;
+
+ case Authenticator::NotAvailable:
+ if (!setup) {
+ // If initialization wasn't successful, we quit to keep from coming up unconfigured
+ throw ExitException{EXIT_FAILURE, tr("Selected auth backend %1 is not available.").arg(backend)};
+ }
+ qCritical() << "Selected auth backend is not available:" << backend;
+ return false;
+
+ case Authenticator::IsReady:
+ // delete all other backends
+ _registeredAuthenticators.clear();
+ break;
+ }
+ _authenticator = std::move(auth);
+ return true;
+}
+
+
+/*** Network Management ***/
+
+bool Core::sslSupported()
+{
+#ifdef HAVE_SSL
+ auto *sslServer = qobject_cast<SslServer *>(&instance()->_server);
+ return sslServer && sslServer->isCertValid();
+#else
return false;
- }
- qDebug() << "Listening for GUI clients on port" << server.serverPort();
- return true;
-}
-
-void Core::stopListening() {
- server.close();
- qDebug() << "No longer listening for GUI clients.";
-}
-
-void Core::incomingConnection() {
- // TODO implement SSL
- QTcpSocket *socket = server.nextPendingConnection();
- connect(socket, SIGNAL(disconnected()), this, SLOT(clientDisconnected()));
- connect(socket, SIGNAL(readyRead()), this, SLOT(clientHasData()));
- blockSizes.insert(socket, (quint32)0);
- qDebug() << "Client connected from " << socket->peerAddress().toString();
-}
-
-void Core::clientHasData() {
- QTcpSocket *socket = dynamic_cast<QTcpSocket*>(sender());
- Q_ASSERT(socket && blockSizes.contains(socket));
- quint32 bsize = blockSizes.value(socket);
- QVariant item;
- if(readDataFromDevice(socket, bsize, item)) {
- /* this is probably obsolete now */
- if(validClients.contains(socket)) {
- Q_ASSERT(false);
- //QList<QVariant> sigdata = item.toList();
- //sessions[validClients[socket]]->processSignal((ClientSignal)sigdata[0].toInt(), sigdata[1], sigdata[2], sigdata[3]);
- } else {
- // we need to auth the client
- try {
- processClientInit(socket, item);
- } catch(Storage::AuthError) {
- qWarning() << "Authentification error!"; // FIXME
- socket->close();
+#endif
+}
+
+
+bool Core::reloadCerts()
+{
+#ifdef HAVE_SSL
+ auto *sslServerv4 = qobject_cast<SslServer *>(&_server);
+ bool retv4 = sslServerv4->reloadCerts();
+
+ auto *sslServerv6 = qobject_cast<SslServer *>(&_v6server);
+ bool retv6 = sslServerv6->reloadCerts();
+
+ return retv4 && retv6;
+#else
+ // SSL not supported, don't mark configuration reload as failed
+ return true;
+#endif
+}
+
+
+void Core::cacheSysIdent()
+{
+ if (isConfigured()) {
+ _authUserNames = _storage->getAllAuthUserNames();
+ }
+}
+
+
+QString Core::strictSysIdent(UserId user) const
+{
+ if (_authUserNames.contains(user)) {
+ return _authUserNames[user];
+ }
+
+ // A new user got added since we last pulled our cache from the database.
+ // There's no way to avoid a database hit - we don't even know the authname!
+ instance()->cacheSysIdent();
+
+ if (_authUserNames.contains(user)) {
+ return _authUserNames[user];
+ }
+
+ // ...something very weird is going on if we ended up here (an active CoreSession without a corresponding database entry?)
+ qWarning().nospace() << "Unable to find authusername for UserId " << user << ", this should never happen!";
+ return "unknown"; // Should we just terminate the program instead?
+}
+
+
+bool Core::startListening()
+{
+ // in mono mode we only start a local port if a port is specified in the cli call
+ if (Quassel::runMode() == Quassel::Monolithic && !Quassel::isOptionSet("port"))
+ return true;
+
+ bool success = false;
+ uint port = Quassel::optionValue("port").toUInt();
+
+ const QString listen = Quassel::optionValue("listen");
+ const QStringList listen_list = listen.split(",", QString::SkipEmptyParts);
+ if (listen_list.size() > 0) {
+ foreach(const QString listen_term, listen_list) { // TODO: handle multiple interfaces for same TCP version gracefully
+ QHostAddress addr;
+ if (!addr.setAddress(listen_term)) {
+ qCritical() << qPrintable(
+ tr("Invalid listen address %1")
+ .arg(listen_term)
+ );
+ }
+ else {
+ switch (addr.protocol()) {
+ case QAbstractSocket::IPv6Protocol:
+ if (_v6server.listen(addr, port)) {
+ quInfo() << qPrintable(
+ tr("Listening for GUI clients on IPv6 %1 port %2 using protocol version %3")
+ .arg(addr.toString())
+ .arg(_v6server.serverPort())
+ .arg(Quassel::buildInfo().protocolVersion)
+ );
+ success = true;
+ }
+ else
+ quWarning() << qPrintable(
+ tr("Could not open IPv6 interface %1:%2: %3")
+ .arg(addr.toString())
+ .arg(port)
+ .arg(_v6server.errorString()));
+ break;
+ case QAbstractSocket::IPv4Protocol:
+ if (_server.listen(addr, port)) {
+ quInfo() << qPrintable(
+ tr("Listening for GUI clients on IPv4 %1 port %2 using protocol version %3")
+ .arg(addr.toString())
+ .arg(_server.serverPort())
+ .arg(Quassel::buildInfo().protocolVersion)
+ );
+ success = true;
+ }
+ else {
+ // if v6 succeeded on Any, the port will be already in use - don't display the error then
+ if (!success || _server.serverError() != QAbstractSocket::AddressInUseError)
+ quWarning() << qPrintable(
+ tr("Could not open IPv4 interface %1:%2: %3")
+ .arg(addr.toString())
+ .arg(port)
+ .arg(_server.errorString()));
+ }
+ break;
+ default:
+ qCritical() << qPrintable(
+ tr("Invalid listen address %1, unknown network protocol")
+ .arg(listen_term)
+ );
+ break;
+ }
+ }
+ }
+ }
+ if (!success)
+ quError() << qPrintable(tr("Could not open any network interfaces to listen on!"));
+
+ if (_identServer) {
+ _identServer->startListening();
+ }
+
+ return success;
+}
+
+
+void Core::stopListening(const QString &reason)
+{
+ if (_identServer) {
+ _identServer->stopListening(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()
+{
+ auto *server = qobject_cast<QTcpServer *>(sender());
+ Q_ASSERT(server);
+ while (server->hasPendingConnections()) {
+ QTcpSocket *socket = server->nextPendingConnection();
+
+ auto *handler = new CoreAuthHandler(socket, this);
+ _connectingClients.insert(handler);
+
+ connect(handler, &AuthHandler::disconnected, this, &Core::clientDisconnected);
+ connect(handler, &AuthHandler::socketError, this, &Core::socketError);
+ connect(handler, &CoreAuthHandler::handshakeComplete, this, &Core::setupClientSession);
+
+ quInfo() << qPrintable(tr("Client connected from")) << qPrintable(socket->peerAddress().toString());
+
+ if (!_configured) {
+ stopListening(tr("Closing server for basic setup."));
+ }
+ }
+}
+
+
+// Potentially called during the initialization phase (before handing the connection off to the session)
+void Core::clientDisconnected()
+{
+ auto *handler = qobject_cast<CoreAuthHandler *>(sender());
+ Q_ASSERT(handler);
+
+ quInfo() << qPrintable(tr("Non-authed client disconnected:")) << qPrintable(handler->socket()->peerAddress().toString());
+ _connectingClients.remove(handler);
+ handler->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)
+{
+ auto *handler = qobject_cast<CoreAuthHandler *>(sender());
+ Q_ASSERT(handler);
+
+ // From now on everything is handled by the client session
+ disconnect(handler, nullptr, this, nullptr);
+ _connectingClients.remove(handler);
+ handler->deleteLater();
+
+ // Find or create session for validated user
+ sessionForUser(uid);
+
+ // 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) {
+ auto *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
+ SessionThread *session = sessionForUser(uid);
+ session->addClient(peer);
+}
+
+
+void Core::connectInternalPeer(QPointer<InternalPeer> peer)
+{
+ if (_initialized && peer) {
+ setupInternalClientSession(peer);
+ }
+ else {
+ _pendingInternalConnection = peer;
+ }
+}
+
+
+void Core::setupInternalClientSession(QPointer<InternalPeer> clientPeer)
+{
+ if (!_configured) {
+ stopListening();
+ auto errorString = setupCoreForInternalUsage();
+ if (!errorString.isEmpty()) {
+ emit exitRequested(EXIT_FAILURE, errorString);
+ return;
+ }
+ }
+
+ UserId uid;
+ if (_storage) {
+ uid = _storage->internalUser();
+ }
+ else {
+ quWarning() << "Core::setupInternalClientSession(): You're trying to run monolithic Quassel with an unusable Backend! Go fix it!";
+ emit exitRequested(EXIT_FAILURE, tr("Cannot setup storage backend."));
return;
- } catch(Exception e) {
- qWarning() << "Client init error:" << e.msg();
- socket->close();
+ }
+
+ if (!clientPeer) {
+ quWarning() << "Client peer went away, not starting a session";
return;
- }
- }
- blockSizes[socket] = bsize = 0; // FIXME blockSizes aufräum0rn!
- }
- blockSizes[socket] = bsize;
-}
-
-void Core::clientDisconnected() {
- QTcpSocket *socket = dynamic_cast<QTcpSocket*>(sender());
- blockSizes.remove(socket);
- validClients.remove(socket);
- qDebug() << "Client disconnected.";
- // TODO remove unneeded sessions - if necessary/possible...
-}
-
-QVariant Core::connectLocalClient(QString user, QString passwd) {
- UserId uid = instance()->storage->validateUser(user, passwd);
- QVariant reply = instance()->initSession(uid);
- instance()->guiUser = uid;
- qDebug() << "Local client connected.";
- return reply;
-}
-
-void Core::disconnectLocalClient() {
- qDebug() << "Local client disconnected.";
- instance()->guiUser = 0;
-}
-
-void Core::processClientInit(QTcpSocket *socket, const QVariant &v) {
- QVariantMap msg = v.toMap();
- if(msg["GuiProtocol"].toUInt() != GUI_PROTOCOL) {
- //qWarning() << "Client version mismatch.";
- throw Exception("GUI client version mismatch");
- }
- // Auth
- UserId uid = storage->validateUser(msg["User"].toString(), msg["Password"].toString()); // throws exception if this failed
- QVariant reply = initSession(uid);
- validClients[socket] = uid; // still needed? FIXME
- //QList<QVariant> sigdata;
- //sigdata.append(CS_CORE_STATE); sigdata.append(reply); sigdata.append(QVariant()); sigdata.append(QVariant());
- disconnect(socket, 0, this, 0);
- sessions[uid]->addClient(socket);
- writeDataToDevice(socket, reply);
-}
-
-QVariant Core::initSession(UserId uid) {
- // Find or create session for validated user
- CoreSession *sess;
- if(sessions.contains(uid)) sess = sessions[uid];
- else {
- sess = createSession(uid);
- //validClients[socket] = uid;
- }
- QVariantMap reply;
- reply["SessionState"] = sess->sessionState();
- return reply;
-}
-
-/*
-void Core::recvProxySignal(CoreSignal sig, QVariant arg1, QVariant arg2, QVariant arg3) {
- CoreSession *sess = qobject_cast<CoreSession*>(sender());
- Q_ASSERT(sess);
- UserId uid = sess->userId();
- QList<QVariant> sigdata;
- sigdata.append(sig); sigdata.append(arg1); sigdata.append(arg2); sigdata.append(arg3);
- //qDebug() << "Sending signal: " << sigdata;
- foreach(QTcpSocket *socket, validClients.keys()) {
- if(validClients[socket] == uid) writeDataToDevice(socket, QVariant(sigdata));
- }
-}
-*/
+ }
+
+ auto *corePeer = new InternalPeer(this);
+ corePeer->setPeer(clientPeer);
+ clientPeer->setPeer(corePeer);
+
+ // Find or create session for validated user
+ SessionThread *sessionThread = sessionForUser(uid);
+ sessionThread->addClient(corePeer);
+}
+
+
+SessionThread *Core::sessionForUser(UserId uid, bool restore)
+{
+ if (_sessions.contains(uid))
+ return _sessions[uid];
+
+ return (_sessions[uid] = new SessionThread(uid, restore, strictIdentEnabled(), this));
+}
+
+
+void Core::socketError(QAbstractSocket::SocketError err, const QString &errorString)
+{
+ quWarning() << QString("Socket error %1: %2").arg(err).arg(errorString);
+}
+
+
+QVariantList Core::backendInfo()
+{
+ instance()->registerStorageBackends();
+
+ QVariantList backendInfos;
+ for (auto &&backend : instance()->_registeredStorageBackends) {
+ QVariantMap v;
+ v["BackendId"] = backend->backendId();
+ v["DisplayName"] = backend->displayName();
+ v["Description"] = backend->description();
+ v["SetupData"] = backend->setupData(); // ignored by legacy clients
+
+ // TODO Protocol Break: Remove legacy (cf. authenticatorInfo())
+ const auto &setupData = backend->setupData();
+ QStringList setupKeys;
+ QVariantMap setupDefaults;
+ for (int i = 0; i + 2 < setupData.size(); i += 3) {
+ setupKeys << setupData[i].toString();
+ setupDefaults[setupData[i].toString()] = setupData[i + 2];
+ }
+ v["SetupKeys"] = setupKeys;
+ v["SetupDefaults"] = setupDefaults;
+ // TODO Protocol Break: Remove
+ v["IsDefault"] = (backend->backendId() == "SQLite"); // newer clients will just use the first in the list
+
+ backendInfos << v;
+ }
+ return backendInfos;
+}
+
+
+QVariantList Core::authenticatorInfo()
+{
+ instance()->registerAuthenticators();
+
+ QVariantList authInfos;
+ for(auto &&backend : instance()->_registeredAuthenticators) {
+ QVariantMap v;
+ v["BackendId"] = backend->backendId();
+ v["DisplayName"] = backend->displayName();
+ v["Description"] = backend->description();
+ v["SetupData"] = backend->setupData();
+ authInfos << v;
+ }
+ return authInfos;
+}
+
+// migration / backend selection
+bool Core::selectBackend(const QString &backend)
+{
+ // reregister all storage backends
+ registerStorageBackends();
+ auto storage = storageBackend(backend);
+ if (!storage) {
+ QStringList backends;
+ std::transform(_registeredStorageBackends.begin(), _registeredStorageBackends.end(),
+ std::back_inserter(backends), [](const DeferredSharedPtr<Storage>& backend) {
+ return backend->displayName();
+ });
+ quWarning() << qPrintable(tr("Unsupported storage backend: %1").arg(backend));
+ quWarning() << qPrintable(tr("Supported backends are:")) << qPrintable(backends.join(", "));
+ return false;
+ }
+
+ QVariantMap settings = promptForSettings(storage.get());
+
+ Storage::State storageState = storage->init(settings);
+ switch (storageState) {
+ case Storage::IsReady:
+ if (!saveBackendSettings(backend, settings)) {
+ qCritical() << qPrintable(QString("Could not save backend settings, probably a permission problem."));
+ }
+ quWarning() << qPrintable(tr("Switched storage backend to: %1").arg(backend));
+ quWarning() << qPrintable(tr("Backend already initialized. Skipping Migration..."));
+ return true;
+ case Storage::NotAvailable:
+ qCritical() << qPrintable(tr("Storage backend is not available: %1").arg(backend));
+ return false;
+ case Storage::NeedsSetup:
+ if (!storage->setup(settings)) {
+ quWarning() << qPrintable(tr("Unable to setup storage backend: %1").arg(backend));
+ return false;
+ }
+
+ if (storage->init(settings) != Storage::IsReady) {
+ quWarning() << qPrintable(tr("Unable to initialize storage backend: %1").arg(backend));
+ return false;
+ }
+
+ if (!saveBackendSettings(backend, settings)) {
+ qCritical() << qPrintable(QString("Could not save backend settings, probably a permission problem."));
+ }
+ quWarning() << qPrintable(tr("Switched storage backend to: %1").arg(backend));
+ break;
+ }
+
+ // let's see if we have a current storage object we can migrate from
+ auto reader = getMigrationReader(_storage.get());
+ auto writer = getMigrationWriter(storage.get());
+ if (reader && writer) {
+ qDebug() << qPrintable(tr("Migrating storage backend %1 to %2...").arg(_storage->displayName(), storage->displayName()));
+ _storage.reset();
+ storage.reset();
+ if (reader->migrateTo(writer.get())) {
+ qDebug() << "Migration finished!";
+ qDebug() << qPrintable(tr("Migration finished!"));
+ if (!saveBackendSettings(backend, settings)) {
+ qCritical() << qPrintable(QString("Could not save backend settings, probably a permission problem."));
+ return false;
+ }
+ return true;
+ }
+ quWarning() << qPrintable(tr("Unable to migrate storage backend! (No migration writer for %1)").arg(backend));
+ return false;
+ }
+
+ // inform the user why we cannot merge
+ if (!_storage) {
+ quWarning() << qPrintable(tr("No currently active storage backend. Skipping migration..."));
+ }
+ else if (!reader) {
+ quWarning() << qPrintable(tr("Currently active storage backend does not support migration: %1").arg(_storage->displayName()));
+ }
+ if (writer) {
+ quWarning() << qPrintable(tr("New storage backend does not support migration: %1").arg(backend));
+ }
+
+ // so we were unable to merge, but let's create a user \o/
+ _storage = std::move(storage);
+ createUser();
+ return true;
+}
+
+// TODO: I am not sure if this function is implemented correctly.
+// There is currently no concept of migraiton between auth backends.
+bool Core::selectAuthenticator(const QString &backend)
+{
+ // Register all authentication backends.
+ registerAuthenticators();
+ auto auther = authenticator(backend);
+ if (!auther) {
+ QStringList authenticators;
+ std::transform(_registeredAuthenticators.begin(), _registeredAuthenticators.end(),
+ std::back_inserter(authenticators), [](const DeferredSharedPtr<Authenticator>& authenticator) {
+ return authenticator->displayName();
+ });
+ quWarning() << qPrintable(tr("Unsupported authenticator: %1").arg(backend));
+ quWarning() << qPrintable(tr("Supported authenticators are:")) << qPrintable(authenticators.join(", "));
+ return false;
+ }
+
+ QVariantMap settings = promptForSettings(auther.get());
+
+ Authenticator::State state = auther->init(settings);
+ switch (state) {
+ case Authenticator::IsReady:
+ saveAuthenticatorSettings(backend, settings);
+ quWarning() << qPrintable(tr("Switched authenticator to: %1").arg(backend));
+ return true;
+ case Authenticator::NotAvailable:
+ qCritical() << qPrintable(tr("Authenticator is not available: %1").arg(backend));
+ return false;
+ case Authenticator::NeedsSetup:
+ if (!auther->setup(settings)) {
+ quWarning() << qPrintable(tr("Unable to setup authenticator: %1").arg(backend));
+ return false;
+ }
+
+ if (auther->init(settings) != Authenticator::IsReady) {
+ quWarning() << qPrintable(tr("Unable to initialize authenticator: %1").arg(backend));
+ return false;
+ }
+
+ saveAuthenticatorSettings(backend, settings);
+ quWarning() << qPrintable(tr("Switched authenticator to: %1").arg(backend));
+ }
+
+ _authenticator = std::move(auther);
+ return true;
+}
+
+
+bool 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) {
+ quWarning() << "Passwords don't match!";
+ return false;
+ }
+ if (password.isEmpty()) {
+ quWarning() << "Password is empty!";
+ return false;
+ }
+
+ if (_configured && _storage->addUser(username, password).isValid()) {
+ out << "Added user " << username << " successfully!" << endl;
+ return true;
+ }
+ else {
+ quWarning() << "Unable to add user:" << qPrintable(username);
+ return false;
+ }
+}
+
+
+bool 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 false;
+ }
+
+ if (!canChangeUserPassword(userId)) {
+ out << "User " << username << " is configured through an auth provider that has forbidden manual password changing." << endl;
+ return false;
+ }
+
+ 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) {
+ quWarning() << "Passwords don't match!";
+ return false;
+ }
+ if (password.isEmpty()) {
+ quWarning() << "Password is empty!";
+ return false;
+ }
+
+ if (_configured && _storage->updateUser(userId, password)) {
+ out << "Password changed successfully!" << endl;
+ return true;
+ }
+ else {
+ quWarning() << "Failed to change password!";
+ return false;
+ }
+}
+
+
+bool Core::changeUserPassword(UserId userId, const QString &password)
+{
+ if (!isConfigured() || !userId.isValid())
+ return false;
+
+ if (!canChangeUserPassword(userId))
+ return false;
+
+ return instance()->_storage->updateUser(userId, password);
+}
+
+// TODO: this code isn't currently 100% optimal because the core
+// doesn't know it can have multiple auth providers configured (there aren't
+// multiple auth providers at the moment anyway) and we have hardcoded the
+// Database provider to be always allowed.
+bool Core::canChangeUserPassword(UserId userId)
+{
+ QString authProvider = instance()->_storage->getUserAuthenticator(userId);
+ if (authProvider != "Database") {
+ if (authProvider != instance()->_authenticator->backendId()) {
+ return false;
+ }
+ else if (instance()->_authenticator->canChangePassword()) {
+ return false;
+ }
+ }
+ return true;
+}
+
+
+std::unique_ptr<AbstractSqlMigrationReader> Core::getMigrationReader(Storage *storage)
+{
+ if (!storage)
+ return nullptr;
+
+ auto *sqlStorage = qobject_cast<AbstractSqlStorage *>(storage);
+ if (!sqlStorage) {
+ qDebug() << "Core::migrateDb(): only SQL based backends can be migrated!";
+ return nullptr;
+ }
+
+ return sqlStorage->createMigrationReader();
+}
+
+
+std::unique_ptr<AbstractSqlMigrationWriter> Core::getMigrationWriter(Storage *storage)
+{
+ if (!storage)
+ return nullptr;
+
+ auto *sqlStorage = qobject_cast<AbstractSqlStorage *>(storage);
+ if (!sqlStorage) {
+ qDebug() << "Core::migrateDb(): only SQL based backends can be migrated!";
+ return nullptr;
+ }
+
+ return sqlStorage->createMigrationWriter();
+}
+
+
+bool Core::saveBackendSettings(const QString &backend, const QVariantMap &settings)
+{
+ QVariantMap dbsettings;
+ dbsettings["Backend"] = backend;
+ dbsettings["ConnectionProperties"] = settings;
+ CoreSettings s = CoreSettings();
+ s.setStorageSettings(dbsettings);
+ return s.sync();
+}
+
+
+void Core::saveAuthenticatorSettings(const QString &backend, const QVariantMap &settings)
+{
+ QVariantMap dbsettings;
+ dbsettings["Authenticator"] = backend;
+ dbsettings["AuthProperties"] = settings;
+ CoreSettings().setAuthSettings(dbsettings);
+}
+
+// Generic version of promptForSettings that doesn't care what *type* of
+// backend it runs over.
+template<typename Backend>
+QVariantMap Core::promptForSettings(const Backend *backend)
+{
+ QVariantMap settings;
+ const QVariantList& setupData = backend->setupData();
+
+ if (setupData.isEmpty())
+ return settings;
+
+ QTextStream out(stdout);
+ QTextStream in(stdin);
+ out << "Default values are in brackets" << endl;
+
+ for (int i = 0; i + 2 < setupData.size(); i += 3) {
+ QString key = setupData[i].toString();
+ out << setupData[i+1].toString() << " [" << setupData[i+2].toString() << "]: " << flush;
+
+ bool noEcho = key.toLower().contains("password");
+ if (noEcho) {
+ disableStdInEcho();
+ }
+ QString input = in.readLine().trimmed();
+ if (noEcho) {
+ out << endl;
+ enableStdInEcho();
+ }
+
+ QVariant value{setupData[i+2]};
+ if (!input.isEmpty()) {
+ switch (value.type()) {
+ case QVariant::Int:
+ value = input.toInt();
+ break;
+ default:
+ value = input;
+ }
+ }
+ settings[key] = value;
+ }
+ return settings;
+}
+
+
+#ifdef Q_OS_WIN
+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_WIN */