1 /***************************************************************************
2 * Copyright (C) 2005-08 by the Quassel Project *
3 * devel@quassel-irc.org *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) version 3. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
21 #include <QMetaObject>
22 #include <QMetaMethod>
23 #include <QMutexLocker>
24 #include <QCoreApplication>
27 #include "coresession.h"
28 #include "coresettings.h"
29 #include "signalproxy.h"
30 #include "sqlitestorage.h"
32 Core *Core::instanceptr = 0;
35 Core *Core::instance() {
36 if(instanceptr) return instanceptr;
37 instanceptr = new Core();
42 void Core::destroy() {
50 startTime = QDateTime::currentDateTime(); // for uptime :)
57 if(!(configured = initStorage(cs.databaseSettings().toMap()))) {
58 qWarning("Core is currently not configured!");
61 connect(&server, SIGNAL(newConnection()), this, SLOT(incomingConnection()));
62 startListening(cs.port());
67 bool Core::initStorage(QVariantMap dbSettings, bool setup) {
68 QString engine = dbSettings["Type"].toString().toLower();
71 qDebug() << "Deleting old storage object.";
72 storage->deleteLater();
76 // FIXME register new storageProviders here
77 if(engine == "sqlite" && SqliteStorage::isAvailable()) {
78 storage = new SqliteStorage(this);
79 connect(storage, SIGNAL(bufferInfoUpdated(UserId, const BufferInfo &)), this, SIGNAL(bufferInfoUpdated(UserId, const BufferInfo &)));
81 qWarning() << "Selected StorageBackend is not available:" << dbSettings["Type"].toString();
82 return configured = false;
85 if(setup && !storage->setup(dbSettings)) {
86 return configured = false;
89 return configured = storage->init(dbSettings);
93 // FIXME properly shutdown the sessions
97 void Core::restoreState() {
98 if(instance()->sessions.count()) {
99 qWarning() << qPrintable(tr("Calling restoreState() even though active sessions exist!"));
103 uint build = s.coreState().toMap()["CoreBuild"].toUInt();
105 qWarning() << qPrintable(tr("Core state too old, ignoring..."));
108 QVariantList activeSessions = s.coreState().toMap()["ActiveSessions"].toList();
109 if(activeSessions.count() > 0) {
110 qDebug() << "Restoring previous core state...";
111 foreach(QVariant v, activeSessions) {
112 UserId user = v.value<UserId>();
113 instance()->createSession(user, true);
115 qDebug() << "...done.";
119 void Core::saveState() {
122 QVariantList activeSessions;
123 foreach(UserId user, instance()->sessions.keys()) activeSessions << QVariant::fromValue<UserId>(user);
124 state["CoreBuild"] = Global::quasselBuild;
125 state["ActiveSessions"] = activeSessions;
126 s.setCoreState(state);
129 /*** Storage Access ***/
131 NetworkId Core::networkId(UserId user, const QString &network) {
132 QMutexLocker locker(&mutex);
133 return instance()->storage->getNetworkId(user, network);
136 BufferInfo Core::bufferInfo(UserId user, const QString &network, const QString &buffer) {
137 //QMutexLocker locker(&mutex);
138 return instance()->storage->getBufferInfo(user, network, buffer);
141 MsgId Core::storeMessage(const Message &message) {
142 QMutexLocker locker(&mutex);
143 return instance()->storage->logMessage(message);
146 QList<Message> Core::requestMsgs(BufferInfo buffer, int lastmsgs, int offset) {
147 QMutexLocker locker(&mutex);
148 return instance()->storage->requestMsgs(buffer, lastmsgs, offset);
151 QList<Message> Core::requestMsgs(BufferInfo buffer, QDateTime since, int offset) {
152 QMutexLocker locker(&mutex);
153 return instance()->storage->requestMsgs(buffer, since, offset);
156 QList<Message> Core::requestMsgRange(BufferInfo buffer, int first, int last) {
157 QMutexLocker locker(&mutex);
158 return instance()->storage->requestMsgRange(buffer, first, last);
161 QList<BufferInfo> Core::requestBuffers(UserId user, QDateTime since) {
162 QMutexLocker locker(&mutex);
163 return instance()->storage->requestBuffers(user, since);
166 /*** Network Management ***/
168 bool Core::startListening(uint port) {
169 if(!server.listen(QHostAddress::Any, port)) {
170 qWarning(QString(QString("Could not open GUI client port %1: %2").arg(port).arg(server.errorString())).toAscii());
173 qDebug() << "Listening for GUI clients on port" << server.serverPort();
177 void Core::stopListening() {
179 qDebug() << "No longer listening for GUI clients.";
182 void Core::incomingConnection() {
183 // TODO implement SSL
184 while (server.hasPendingConnections()) {
185 QTcpSocket *socket = server.nextPendingConnection();
186 connect(socket, SIGNAL(disconnected()), this, SLOT(clientDisconnected()));
187 connect(socket, SIGNAL(readyRead()), this, SLOT(clientHasData()));
188 QVariantMap clientInfo;
189 blocksizes.insert(socket, (quint32)0);
190 qDebug() << "Client connected from" << qPrintable(socket->peerAddress().toString());
194 qDebug() << "Closing server for basic setup.";
199 void Core::clientHasData() {
200 QTcpSocket *socket = dynamic_cast<QTcpSocket*>(sender());
201 Q_ASSERT(socket && blocksizes.contains(socket));
203 while(SignalProxy::readDataFromDevice(socket, blocksizes[socket], item)) {
204 QVariantMap msg = item.toMap();
205 if(!msg.contains("MsgType")) {
206 // Client is way too old, does not even use the current init format
207 qWarning() << qPrintable(tr("Antique client trying to connect... refusing."));
211 // OK, so we have at least an init message format we can understand
212 if(msg["MsgType"] == "ClientInit") {
214 reply["CoreVersion"] = Global::quasselVersion;
215 reply["CoreDate"] = Global::quasselDate;
216 reply["CoreBuild"] = Global::quasselBuild;
217 // TODO: Make the core info configurable
218 int uptime = startTime.secsTo(QDateTime::currentDateTime());
219 int updays = uptime / 86400; uptime %= 86400;
220 int uphours = uptime / 3600; uptime %= 3600;
221 int upmins = uptime / 60;
222 reply["CoreInfo"] = tr("<b>Quassel Core Version %1 (Build >= %2)</b><br>"
223 "Up %3d%4h%5m (since %6)").arg(Global::quasselVersion).arg(Global::quasselBuild)
224 .arg(updays).arg(uphours,2,10,QChar('0')).arg(upmins,2,10,QChar('0')).arg(startTime.toString(Qt::TextDate));
226 reply["SupportSsl"] = false;
227 reply["LoginEnabled"] = true;
228 // TODO: check if we are configured, start wizard otherwise
230 // Just version information -- check it!
231 if(msg["ClientBuild"].toUInt() < Global::clientBuildNeeded) {
232 reply["MsgType"] = "ClientInitReject";
233 reply["Error"] = tr("<b>Your Quassel Client is too old!</b><br>"
234 "This core needs at least client version %1 (Build >= %2).<br>"
235 "Please consider upgrading your client.").arg(Global::quasselVersion).arg(Global::quasselBuild);
236 SignalProxy::writeDataToDevice(socket, reply);
237 qWarning() << qPrintable(tr("Client %1 too old, rejecting.").arg(socket->peerAddress().toString()));
238 socket->close(); return;
240 clientInfo[socket] = msg; // store for future reference
241 reply["MsgType"] = "ClientInitAck";
242 SignalProxy::writeDataToDevice(socket, reply);
243 } else if(msg["MsgType"] == "ClientLogin") {
245 if(!clientInfo.contains(socket)) {
246 reply["MsgType"] = "ClientLoginReject";
247 reply["Error"] = tr("<b>Client not initialized!</b><br>You need to send an init message before trying to login.");
248 SignalProxy::writeDataToDevice(socket, reply);
249 qWarning() << qPrintable(tr("Client %1 did not send an init message before trying to login, rejecting.").arg(socket->peerAddress().toString()));
250 socket->close(); return;
253 UserId uid = storage->validateUser(msg["User"].toString(), msg["Password"].toString());
256 reply["MsgType"] = "ClientLoginReject";
257 reply["Error"] = tr("<b>Invalid username or password!</b><br>The username/password combination you supplied could not be found in the database.");
258 SignalProxy::writeDataToDevice(socket, reply);
261 reply["MsgType"] = "ClientLoginAck";
262 SignalProxy::writeDataToDevice(socket, reply);
263 qDebug() << qPrintable(tr("Client %1 initialized and authentificated successfully as \"%2\".").arg(socket->peerAddress().toString(), msg["User"].toString()));
264 setupClientSession(socket, uid);
266 //socket->close(); return;
268 // we need to auth the client
270 QVariantMap msg = item.toMap();
271 if (msg["GuiProtocol"].toUInt() != GUI_PROTOCOL) {
272 throw Exception("GUI client version mismatch");
275 processClientInit(socket, msg);
277 processCoreSetup(socket, msg);
279 } catch(Storage::AuthError) {
280 qWarning() << "Authentification error!"; // FIXME: send auth error to client
283 } catch(Exception e) {
284 qWarning() << "Client init error:" << e.msg();
291 // Potentially called during the initialization phase (before handing the connection off to the session)
292 void Core::clientDisconnected() {
293 QTcpSocket *socket = dynamic_cast<QTcpSocket*>(sender());
294 blocksizes.remove(socket);
295 clientInfo.remove(socket);
296 qDebug() << qPrintable(tr("Client %1 disconnected.").arg(socket->peerAddress().toString()));
297 socket->deleteLater();
300 // make server listen again if still not configured FIXME
305 // TODO remove unneeded sessions - if necessary/possible...
306 // Suggestion: kill sessions if they are not connected to any network and client.
309 void Core::processCoreSetup(QTcpSocket *socket, QVariantMap &msg) {
310 if(msg["HasSettings"].toBool()) {
312 auth["User"] = msg["User"];
313 auth["Password"] = msg["Password"];
315 msg.remove("Password");
316 qDebug() << "Initializing storage provider" << msg["Type"].toString();
318 if(!initStorage(msg, true)) {
319 // notify client to start wizard again
320 qWarning("Core is currently not configured!");
322 reply["StartWizard"] = true;
323 reply["StorageProviders"] = availableStorageProviders();
324 SignalProxy::writeDataToDevice(socket, reply);
326 // write coresettings
328 s.setDatabaseSettings(msg);
329 // write admin user to database & make the core listen again to connections
330 storage->addUser(auth["User"].toString(), auth["Password"].toString());
332 // continue the normal procedure
333 //processClientInit(socket, auth);
336 // notify client to start wizard
338 reply["StartWizard"] = true;
339 reply["StorageProviders"] = availableStorageProviders();
340 SignalProxy::writeDataToDevice(socket, reply);
344 void Core::setupClientSession(QTcpSocket *socket, UserId uid) {
345 // Find or create session for validated user
347 if(sessions.contains(uid)) sess = sessions[uid];
348 else sess = createSession(uid);
349 // Hand over socket, session then sends state itself
350 disconnect(socket, 0, this, 0);
352 qWarning() << qPrintable(tr("Could not initialize session for client %1!").arg(socket->peerAddress().toString()));
355 sess->addClient(socket);
358 SessionThread *Core::createSession(UserId uid, bool restore) {
359 if(sessions.contains(uid)) {
360 qWarning() << "Calling createSession() when a session for the user already exists!";
363 SessionThread *sess = new SessionThread(uid, restore, this);
364 sessions[uid] = sess;
369 QStringList Core::availableStorageProviders() {
370 QStringList storageProviders;
371 if (SqliteStorage::isAvailable()) {
372 storageProviders.append(SqliteStorage::displayName());
375 // storageProviders.append("MySQL");
377 return storageProviders;