Fix ALL the license headers!
[quassel.git] / src / core / sqlitestorage.cpp
index 90a111e..3df55d5 100644 (file)
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2005-07 by the Quassel IRC Team                         *
+ *   Copyright (C) 2005-2012 by the Quassel Project                        *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   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 "sqlitestorage.h"
 
-#include <QCryptographicHash>
-
 #include <QtSql>
 
+#include "logger.h"
+#include "network.h"
+#include "quassel.h"
+
+int SqliteStorage::_maxRetryCount = 150;
+
 SqliteStorage::SqliteStorage(QObject *parent)
-  : AbstractSqlStorage(parent)
+    : AbstractSqlStorage(parent)
+{
+}
+
+
+SqliteStorage::~SqliteStorage()
+{
+}
+
+
+bool SqliteStorage::isAvailable() const
 {
+    if (!QSqlDatabase::isDriverAvailable("QSQLITE")) return false;
+    return true;
 }
 
-SqliteStorage::~SqliteStorage() {
+
+QString SqliteStorage::displayName() const
+{
+    // We identify the backend to use for the monolithic core by its displayname.
+    // so only change this string if you _really_ have to and make sure the core
+    // setup for the mono client still works ;)
+    return QString("SQLite");
 }
 
-bool SqliteStorage::isAvailable() {
-  if(!QSqlDatabase::isDriverAvailable("QSQLITE")) return false;
-  return true;
+
+QString SqliteStorage::description() const
+{
+    return tr("SQLite is a file-based database engine that does not require any setup. It is suitable for small and medium-sized "
+              "databases that do not require access via network. Use SQLite if your Quassel Core should store its data on the same machine "
+              "it is running on, and if you only expect a few users to use your core.");
 }
 
-QString SqliteStorage::displayName() {
-  return QString("SQLite");
+
+int SqliteStorage::installedSchemaVersion()
+{
+    // only used when there is a singlethread (during startup)
+    // so we don't need locking here
+    QSqlQuery query = logDb().exec("SELECT value FROM coreinfo WHERE key = 'schemaversion'");
+    if (query.first())
+        return query.value(0).toInt();
+
+    // maybe it's really old... (schema version 0)
+    query = logDb().exec("SELECT MAX(version) FROM coreinfo");
+    if (query.first())
+        return query.value(0).toInt();
+
+    return AbstractSqlStorage::installedSchemaVersion();
 }
 
-QString SqliteStorage::engineName() {
-  return SqliteStorage::displayName();
+
+bool SqliteStorage::updateSchemaVersion(int newVersion)
+{
+    // only used when there is a singlethread (during startup)
+    // so we don't need locking here
+    QSqlQuery query(logDb());
+    query.prepare("UPDATE coreinfo SET value = :version WHERE key = 'schemaversion'");
+    query.bindValue(":version", newVersion);
+    query.exec();
+
+    bool success = true;
+    if (query.lastError().isValid()) {
+        qCritical() << "SqliteStorage::updateSchemaVersion(int): Updating schema version failed!";
+        success = false;
+    }
+    return success;
 }
 
-int SqliteStorage::installedSchemaVersion() {
-  QSqlQuery query = logDb().exec("SELECT value FROM coreinfo WHERE key = 'schemaversion'");
-  if(query.first())
-    return query.value(0).toInt();
 
-  // maybe it's really old... (schema version 0)
-  query = logDb().exec("SELECT MAX(version) FROM coreinfo");
-  if(query.first())
-    return query.value(0).toInt();
-
-  return AbstractSqlStorage::installedSchemaVersion();
-}
-
-UserId SqliteStorage::addUser(const QString &user, const QString &password) {
-  QByteArray cryptopass = QCryptographicHash::hash(password.toUtf8(), QCryptographicHash::Sha1);
-  cryptopass = cryptopass.toHex();
-
-  QSqlQuery query(logDb());
-  query.prepare(queryString("insert_quasseluser"));
-  query.bindValue(":username", user);
-  query.bindValue(":password", cryptopass);
-  query.exec();
-  if(query.lastError().isValid() && query.lastError().number() == 19) { // user already exists - sadly 19 seems to be the general constraint violation error...
-    return 0;
-  }
-
-  query.prepare(queryString("select_userid"));
-  query.bindValue(":username", user);
-  query.exec();
-  query.first();
-  UserId uid = query.value(0).toUInt();
-  emit userAdded(uid, user);
-  return uid;
-}
-
-void SqliteStorage::updateUser(UserId user, const QString &password) {
-  QByteArray cryptopass = QCryptographicHash::hash(password.toUtf8(), QCryptographicHash::Sha1);
-  cryptopass = cryptopass.toHex();
-
-  QSqlQuery query(logDb());
-  query.prepare(queryString("update_userpassword"));
-  query.bindValue(":userid", user);
-  query.bindValue(":password", cryptopass);
-  query.exec();
-}
-
-void SqliteStorage::renameUser(UserId user, const QString &newName) {
-  QSqlQuery query(logDb());
-  query.prepare(queryString("update_username"));
-  query.bindValue(":userid", user);
-  query.bindValue(":username", newName);
-  query.exec();
-  emit userRenamed(user, newName);
-}
-
-UserId SqliteStorage::validateUser(const QString &user, const QString &password) {
-  QByteArray cryptopass = QCryptographicHash::hash(password.toUtf8(), QCryptographicHash::Sha1);
-  cryptopass = cryptopass.toHex();
-
-  QSqlQuery query(logDb());
-  query.prepare(queryString("select_authuser"));
-  query.bindValue(":username", user);
-  query.bindValue(":password", cryptopass);
-  query.exec();
-
-  if(query.first()) {
-    return query.value(0).toUInt();
-  } else {
-    throw AuthError();
-    return 0;
-  }
-}
-
-void SqliteStorage::delUser(UserId user) {
-  QSqlQuery query(logDb());
-  query.prepare(queryString("delete_backlog_by_uid"));
-  query.bindValue(":userid", user);
-  query.exec();
-  
-  query.prepare(queryString("delete_buffers_by_uid"));
-  query.bindValue(":userid", user);
-  query.exec();
-  
-  query.prepare(queryString("delete_networks_by_uid"));
-  query.bindValue(":userid", user);
-  query.exec();
-  
-  query.prepare(queryString("delete_quasseluser"));
-  query.bindValue(":userid", user);
-  query.exec();
-  // I hate the lack of foreign keys and on delete cascade... :(
-  emit userRemoved(user);
-}
-
-void SqliteStorage::createBuffer(UserId user, const QString &network, const QString &buffer) {
-  QSqlQuery *createBufferQuery = cachedQuery("insert_buffer");
-  createBufferQuery->bindValue(":userid", user);
-  createBufferQuery->bindValue(":userid2", user);  // Qt can't handle same placeholder twice (maybe sqlites fault)
-  createBufferQuery->bindValue(":networkname", network);
-  createBufferQuery->bindValue(":buffername", buffer);
-  createBufferQuery->exec();
-
-  if(createBufferQuery->lastError().isValid()) {
-    if(createBufferQuery->lastError().number() == 19) { // Null Constraint violation
-      QSqlQuery *createNetworkQuery = cachedQuery("insert_network");
-      createNetworkQuery->bindValue(":userid", user);
-      createNetworkQuery->bindValue(":networkname", network);
-      createNetworkQuery->exec();
-      createBufferQuery->exec();
-      Q_ASSERT(!createNetworkQuery->lastError().isValid());
-      Q_ASSERT(!createBufferQuery->lastError().isValid());
-    } else {
-      // do panic!
-      qDebug() << "failed to create Buffer: ErrNo:" << createBufferQuery->lastError().number() << "ErrMsg:" << createBufferQuery->lastError().text();
-      Q_ASSERT(false);
-    }
-  }
-}
-
-uint SqliteStorage::getNetworkId(UserId user, const QString &network) {
-  QSqlQuery query(logDb());
-  query.prepare("SELECT networkid FROM network "
-               "WHERE userid = :userid AND networkname = :networkname");
-  query.bindValue(":userid", user);
-  query.bindValue(":networkname", network);
-  query.exec();
-  
-  if(query.first())
-    return query.value(0).toUInt();
-  else {
-    createBuffer(user, network, "");
+bool SqliteStorage::setupSchemaVersion(int version)
+{
+    // only used when there is a singlethread (during startup)
+    // so we don't need locking here
+    QSqlQuery query(logDb());
+    query.prepare("INSERT INTO coreinfo (key, value) VALUES ('schemaversion', :version)");
+    query.bindValue(":version", version);
     query.exec();
-    if(query.first())
-      return query.value(0).toUInt();
-    else {
-      qWarning() << "NETWORK NOT FOUND:" << network << "for User:" << user;
-      return 0;
-    }
-  }
-}
-
-BufferInfo SqliteStorage::getBufferInfo(UserId user, const QString &network, const QString &buffer) {
-  BufferInfo bufferid;
-  // TODO: get rid of this hackaround
-  uint networkId = getNetworkId(user, network);
-
-  QSqlQuery *getBufferInfoQuery = cachedQuery("select_bufferByName");
-  getBufferInfoQuery->bindValue(":networkname", network);
-  getBufferInfoQuery->bindValue(":userid", user);
-  getBufferInfoQuery->bindValue(":userid2", user); // Qt can't handle same placeholder twice... though I guess it's sqlites fault
-  getBufferInfoQuery->bindValue(":buffername", buffer);
-  getBufferInfoQuery->exec();
-
-  if(!getBufferInfoQuery->first()) {
-    createBuffer(user, network, buffer);
-    getBufferInfoQuery->exec();
-    if(getBufferInfoQuery->first()) {
-      bufferid = BufferInfo(getBufferInfoQuery->value(0).toUInt(), networkId, 0, network, buffer);
-      emit bufferInfoUpdated(bufferid);
-    }
-  } else {
-    bufferid = BufferInfo(getBufferInfoQuery->value(0).toUInt(), networkId, 0, network, buffer);
-  }
-
-  Q_ASSERT(!getBufferInfoQuery->next());
-
-  return bufferid;
-}
-
-QList<BufferInfo> SqliteStorage::requestBuffers(UserId user, QDateTime since) {
-  uint time = 0;
-  if(since.isValid())
-    time = since.toTime_t();
-  
-  QList<BufferInfo> bufferlist;
-  QSqlQuery query(logDb());
-  query.prepare(queryString("select_buffers"));
-  query.bindValue(":userid", user);
-  query.bindValue(":time", time);
-  
-  query.exec();
-  watchQuery(&query);
-  while(query.next()) {
-    bufferlist << BufferInfo(query.value(0).toUInt(), query.value(2).toUInt(), 0, query.value(3).toString(), query.value(1).toString());
-  }
-  return bufferlist;
-}
-
-MsgId SqliteStorage::logMessage(Message msg) {
-  QSqlQuery *logMessageQuery = cachedQuery("insert_message");
-  logMessageQuery->bindValue(":time", msg.timestamp().toTime_t());
-  logMessageQuery->bindValue(":bufferid", msg.buffer().uid());
-  logMessageQuery->bindValue(":type", msg.type());
-  logMessageQuery->bindValue(":flags", msg.flags());
-  logMessageQuery->bindValue(":sender", msg.sender());
-  logMessageQuery->bindValue(":message", msg.text());
-  logMessageQuery->exec();
-  
-  if(logMessageQuery->lastError().isValid()) {
-    // constraint violation - must be NOT NULL constraint - probably the sender is missing...
-    if(logMessageQuery->lastError().number() == 19) {
-      QSqlQuery *addSenderQuery = cachedQuery("insert_sender");
-      addSenderQuery->bindValue(":sender", msg.sender());
-      addSenderQuery->exec();
-      watchQuery(addSenderQuery);
-      logMessageQuery->exec();
-      if(!watchQuery(logMessageQuery))
-       return 0;
-    } else {
-      watchQuery(logMessageQuery);
-    }
-  }
-
-  QSqlQuery *getLastMessageIdQuery = cachedQuery("select_lastMessage");
-  getLastMessageIdQuery->bindValue(":time", msg.timestamp().toTime_t());
-  getLastMessageIdQuery->bindValue(":bufferid", msg.buffer().uid());
-  getLastMessageIdQuery->bindValue(":type", msg.type());
-  getLastMessageIdQuery->bindValue(":sender", msg.sender());
-  getLastMessageIdQuery->exec();
-
-  if(getLastMessageIdQuery->first()) {
-    return getLastMessageIdQuery->value(0).toUInt();
-  } else { // somethin went wrong... :(
-    qDebug() << getLastMessageIdQuery->lastQuery() << "time/bufferid/type/sender:" << msg.timestamp().toTime_t() << msg.buffer().uid() << msg.type() << msg.sender();
-    Q_ASSERT(false);
-    return 0;
-  }
-}
-
-QList<Message> SqliteStorage::requestMsgs(BufferInfo buffer, int lastmsgs, int offset) {
-  QList<Message> messagelist;
-  // we have to determine the real offset first
-  QSqlQuery *requestMsgsOffsetQuery = cachedQuery("select_messagesOffset");
-  requestMsgsOffsetQuery->bindValue(":bufferid", buffer.uid());
-  requestMsgsOffsetQuery->bindValue(":messageid", offset);
-  requestMsgsOffsetQuery->exec();
-  requestMsgsOffsetQuery->first();
-  offset = requestMsgsOffsetQuery->value(0).toUInt();
-
-  // now let's select the messages
-  QSqlQuery *requestMsgsQuery = cachedQuery("select_messages");
-  requestMsgsQuery->bindValue(":bufferid", buffer.uid());
-  requestMsgsQuery->bindValue(":bufferid2", buffer.uid());  // Qt can't handle the same placeholder used twice
-  requestMsgsQuery->bindValue(":limit", lastmsgs);
-  requestMsgsQuery->bindValue(":offset", offset);
-  requestMsgsQuery->exec();
-  while(requestMsgsQuery->next()) {
-    Message msg(QDateTime::fromTime_t(requestMsgsQuery->value(1).toInt()),
-                buffer,
-                (Message::Type)requestMsgsQuery->value(2).toUInt(),
-                requestMsgsQuery->value(5).toString(),
-                requestMsgsQuery->value(4).toString(),
-                requestMsgsQuery->value(3).toUInt());
-    msg.setMsgId(requestMsgsQuery->value(0).toUInt());
-    messagelist << msg;
-  }
-  return messagelist;
-}
-
-
-QList<Message> SqliteStorage::requestMsgs(BufferInfo buffer, QDateTime since, int offset) {
-  QList<Message> messagelist;
-  // we have to determine the real offset first
-  QSqlQuery *requestMsgsSinceOffsetQuery = cachedQuery("select_messagesSinceOffset");
-  requestMsgsSinceOffsetQuery->bindValue(":bufferid", buffer.uid());
-  requestMsgsSinceOffsetQuery->bindValue(":since", since.toTime_t());
-  requestMsgsSinceOffsetQuery->exec();
-  requestMsgsSinceOffsetQuery->first();
-  offset = requestMsgsSinceOffsetQuery->value(0).toUInt();  
-
-  // now let's select the messages
-  QSqlQuery *requestMsgsSinceQuery = cachedQuery("select_messagesSince");
-  requestMsgsSinceQuery->bindValue(":bufferid", buffer.uid());
-  requestMsgsSinceQuery->bindValue(":bufferid2", buffer.uid());
-  requestMsgsSinceQuery->bindValue(":since", since.toTime_t());
-  requestMsgsSinceQuery->bindValue(":offset", offset);
-  requestMsgsSinceQuery->exec();
-
-  while(requestMsgsSinceQuery->next()) {
-    Message msg(QDateTime::fromTime_t(requestMsgsSinceQuery->value(1).toInt()),
-                buffer,
-                (Message::Type)requestMsgsSinceQuery->value(2).toUInt(),
-                requestMsgsSinceQuery->value(5).toString(),
-                requestMsgsSinceQuery->value(4).toString(),
-                requestMsgsSinceQuery->value(3).toUInt());
-    msg.setMsgId(requestMsgsSinceQuery->value(0).toUInt());
-    messagelist << msg;
-  }
-
-  return messagelist;
-}
-
-
-QList<Message> SqliteStorage::requestMsgRange(BufferInfo buffer, int first, int last) {
-  QList<Message> messagelist;
-  QSqlQuery *requestMsgRangeQuery = cachedQuery("select_messageRange");
-  requestMsgRangeQuery->bindValue(":bufferid", buffer.uid());
-  requestMsgRangeQuery->bindValue(":bufferid2", buffer.uid());
-  requestMsgRangeQuery->bindValue(":firstmsg", first);
-  requestMsgRangeQuery->bindValue(":lastmsg", last);
-
-  while(requestMsgRangeQuery->next()) {
-    Message msg(QDateTime::fromTime_t(requestMsgRangeQuery->value(1).toInt()),
-                buffer,
-                (Message::Type)requestMsgRangeQuery->value(2).toUInt(),
-                requestMsgRangeQuery->value(5).toString(),
-                requestMsgRangeQuery->value(4).toString(),
-                requestMsgRangeQuery->value(3).toUInt());
-    msg.setMsgId(requestMsgRangeQuery->value(0).toUInt());
-    messagelist << msg;
-  }
-
-  return messagelist;
-}
-
-QString SqliteStorage::backlogFile() {
-  // kinda ugly, but I currently see no other way to do that
-#ifdef Q_OS_WIN32
-  QString quasselDir = QDir::homePath() + qgetenv("APPDATA") + "\\quassel\\";
+
+    bool success = true;
+    if (query.lastError().isValid()) {
+        qCritical() << "SqliteStorage::setupSchemaVersion(int): Updating schema version failed!";
+        success = false;
+    }
+    return success;
+}
+
+
+UserId SqliteStorage::addUser(const QString &user, const QString &password)
+{
+    QSqlDatabase db = logDb();
+    UserId uid;
+
+    db.transaction();
+    // this scope ensures that the query is freed in sqlite before we call unlock()
+    // this ensures that our thread doesn't hold a internal after unlock is called
+    // (see sqlites doc on implicit locking for details)
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("insert_quasseluser"));
+        query.bindValue(":username", user);
+        query.bindValue(":password", cryptedPassword(password));
+        lockForWrite();
+        safeExec(query);
+        if (query.lastError().isValid() && query.lastError().number() == 19) { // user already exists - sadly 19 seems to be the general constraint violation error...
+            db.rollback();
+        }
+        else {
+            uid = query.lastInsertId().toInt();
+            db.commit();
+        }
+    }
+    unlock();
+
+    if (uid.isValid())
+        emit userAdded(uid, user);
+    return uid;
+}
+
+
+bool SqliteStorage::updateUser(UserId user, const QString &password)
+{
+    QSqlDatabase db = logDb();
+    bool success = false;
+
+    db.transaction();
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("update_userpassword"));
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":password", cryptedPassword(password));
+        lockForWrite();
+        safeExec(query);
+        success = query.numRowsAffected() != 0;
+        db.commit();
+    }
+    unlock();
+    return success;
+}
+
+
+void SqliteStorage::renameUser(UserId user, const QString &newName)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("update_username"));
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":username", newName);
+        lockForWrite();
+        safeExec(query);
+        db.commit();
+    }
+    unlock();
+    emit userRenamed(user, newName);
+}
+
+
+UserId SqliteStorage::validateUser(const QString &user, const QString &password)
+{
+    UserId userId;
+
+    {
+        QSqlQuery query(logDb());
+        query.prepare(queryString("select_authuser"));
+        query.bindValue(":username", user);
+        query.bindValue(":password", cryptedPassword(password));
+
+        lockForRead();
+        safeExec(query);
+
+        if (query.first()) {
+            userId = query.value(0).toInt();
+        }
+    }
+    unlock();
+
+    return userId;
+}
+
+
+UserId SqliteStorage::getUserId(const QString &username)
+{
+    UserId userId;
+
+    {
+        QSqlQuery query(logDb());
+        query.prepare(queryString("select_userid"));
+        query.bindValue(":username", username);
+
+        lockForRead();
+        safeExec(query);
+
+        if (query.first()) {
+            userId = query.value(0).toInt();
+        }
+    }
+    unlock();
+
+    return userId;
+}
+
+
+UserId SqliteStorage::internalUser()
+{
+    UserId userId;
+
+    {
+        QSqlQuery query(logDb());
+        query.prepare(queryString("select_internaluser"));
+        lockForRead();
+        safeExec(query);
+
+        if (query.first()) {
+            userId = query.value(0).toInt();
+        }
+    }
+    unlock();
+
+    return userId;
+}
+
+
+void SqliteStorage::delUser(UserId user)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    lockForWrite();
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("delete_backlog_by_uid"));
+        query.bindValue(":userid", user.toInt());
+        safeExec(query);
+
+        query.prepare(queryString("delete_buffers_by_uid"));
+        query.bindValue(":userid", user.toInt());
+        safeExec(query);
+
+        query.prepare(queryString("delete_networks_by_uid"));
+        query.bindValue(":userid", user.toInt());
+        safeExec(query);
+
+        query.prepare(queryString("delete_quasseluser"));
+        query.bindValue(":userid", user.toInt());
+        safeExec(query);
+        // I hate the lack of foreign keys and on delete cascade... :(
+        db.commit();
+    }
+    unlock();
+
+    emit userRemoved(user);
+}
+
+
+void SqliteStorage::setUserSetting(UserId userId, const QString &settingName, const QVariant &data)
+{
+    QByteArray rawData;
+    QDataStream out(&rawData, QIODevice::WriteOnly);
+    out.setVersion(QDataStream::Qt_4_2);
+    out << data;
+
+    QSqlDatabase db = logDb();
+    db.transaction();
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("insert_user_setting"));
+        query.bindValue(":userid", userId.toInt());
+        query.bindValue(":settingname", settingName);
+        query.bindValue(":settingvalue", rawData);
+        lockForWrite();
+        safeExec(query);
+
+        if (query.lastError().isValid()) {
+            QSqlQuery updateQuery(db);
+            updateQuery.prepare(queryString("update_user_setting"));
+            updateQuery.bindValue(":userid", userId.toInt());
+            updateQuery.bindValue(":settingname", settingName);
+            updateQuery.bindValue(":settingvalue", rawData);
+            safeExec(updateQuery);
+        }
+        db.commit();
+    }
+    unlock();
+}
+
+
+QVariant SqliteStorage::getUserSetting(UserId userId, const QString &settingName, const QVariant &defaultData)
+{
+    QVariant data = defaultData;
+    {
+        QSqlQuery query(logDb());
+        query.prepare(queryString("select_user_setting"));
+        query.bindValue(":userid", userId.toInt());
+        query.bindValue(":settingname", settingName);
+        lockForRead();
+        safeExec(query);
+
+        if (query.first()) {
+            QByteArray rawData = query.value(0).toByteArray();
+            QDataStream in(&rawData, QIODevice::ReadOnly);
+            in.setVersion(QDataStream::Qt_4_2);
+            in >> data;
+        }
+    }
+    unlock();
+    return data;
+}
+
+
+IdentityId SqliteStorage::createIdentity(UserId user, CoreIdentity &identity)
+{
+    IdentityId identityId;
+
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("insert_identity"));
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":identityname", identity.identityName());
+        query.bindValue(":realname", identity.realName());
+        query.bindValue(":awaynick", identity.awayNick());
+        query.bindValue(":awaynickenabled", identity.awayNickEnabled() ? 1 : 0);
+        query.bindValue(":awayreason", identity.awayReason());
+        query.bindValue(":awayreasonenabled", identity.awayReasonEnabled() ? 1 : 0);
+        query.bindValue(":autoawayenabled", identity.awayReasonEnabled() ? 1 : 0);
+        query.bindValue(":autoawaytime", identity.autoAwayTime());
+        query.bindValue(":autoawayreason", identity.autoAwayReason());
+        query.bindValue(":autoawayreasonenabled", identity.autoAwayReasonEnabled() ? 1 : 0);
+        query.bindValue(":detachawayenabled", identity.detachAwayEnabled() ? 1 : 0);
+        query.bindValue(":detachawayreason", identity.detachAwayReason());
+        query.bindValue(":detachawayreasonenabled", identity.detachAwayReasonEnabled() ? 1 : 0);
+        query.bindValue(":ident", identity.ident());
+        query.bindValue(":kickreason", identity.kickReason());
+        query.bindValue(":partreason", identity.partReason());
+        query.bindValue(":quitreason", identity.quitReason());
+#ifdef HAVE_SSL
+        query.bindValue(":sslcert", identity.sslCert().toPem());
+        query.bindValue(":sslkey", identity.sslKey().toPem());
 #else
-  QString quasselDir = QDir::homePath() + "/.quassel/";
+        query.bindValue(":sslcert", QByteArray());
+        query.bindValue(":sslkey", QByteArray());
 #endif
 
-  QDir qDir(quasselDir);
-  if(!qDir.exists(quasselDir))
-    qDir.mkpath(quasselDir);
-  
-  return quasselDir + "quassel-storage.sqlite";  
+        lockForWrite();
+        safeExec(query);
+
+        identityId = query.lastInsertId().toInt();
+        if (!identityId.isValid()) {
+            watchQuery(query);
+        }
+        else {
+            QSqlQuery deleteNickQuery(db);
+            deleteNickQuery.prepare(queryString("delete_nicks"));
+            deleteNickQuery.bindValue(":identityid", identityId.toInt());
+            safeExec(deleteNickQuery);
+
+            QSqlQuery insertNickQuery(db);
+            insertNickQuery.prepare(queryString("insert_nick"));
+            foreach(QString nick, identity.nicks()) {
+                insertNickQuery.bindValue(":identityid", identityId.toInt());
+                insertNickQuery.bindValue(":nick", nick);
+                safeExec(insertNickQuery);
+            }
+        }
+        db.commit();
+    }
+    unlock();
+    identity.setId(identityId);
+    return identityId;
+}
+
+
+bool SqliteStorage::updateIdentity(UserId user, const CoreIdentity &identity)
+{
+    QSqlDatabase db = logDb();
+    bool error = false;
+    db.transaction();
+
+    {
+        QSqlQuery checkQuery(db);
+        checkQuery.prepare(queryString("select_checkidentity"));
+        checkQuery.bindValue(":identityid", identity.id().toInt());
+        checkQuery.bindValue(":userid", user.toInt());
+        lockForRead();
+        safeExec(checkQuery);
+
+        // there should be exactly one identity for the given id and user
+        error = (!checkQuery.first() || checkQuery.value(0).toInt() != 1);
+    }
+    if (error) {
+        unlock();
+        return false;
+    }
+
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("update_identity"));
+        query.bindValue(":identityname", identity.identityName());
+        query.bindValue(":realname", identity.realName());
+        query.bindValue(":awaynick", identity.awayNick());
+        query.bindValue(":awaynickenabled", identity.awayNickEnabled() ? 1 : 0);
+        query.bindValue(":awayreason", identity.awayReason());
+        query.bindValue(":awayreasonenabled", identity.awayReasonEnabled() ? 1 : 0);
+        query.bindValue(":autoawayenabled", identity.awayReasonEnabled() ? 1 : 0);
+        query.bindValue(":autoawaytime", identity.autoAwayTime());
+        query.bindValue(":autoawayreason", identity.autoAwayReason());
+        query.bindValue(":autoawayreasonenabled", identity.autoAwayReasonEnabled() ? 1 : 0);
+        query.bindValue(":detachawayenabled", identity.detachAwayEnabled() ? 1 : 0);
+        query.bindValue(":detachawayreason", identity.detachAwayReason());
+        query.bindValue(":detachawayreasonenabled", identity.detachAwayReasonEnabled() ? 1 : 0);
+        query.bindValue(":ident", identity.ident());
+        query.bindValue(":kickreason", identity.kickReason());
+        query.bindValue(":partreason", identity.partReason());
+        query.bindValue(":quitreason", identity.quitReason());
+#ifdef HAVE_SSL
+        query.bindValue(":sslcert", identity.sslCert().toPem());
+        query.bindValue(":sslkey", identity.sslKey().toPem());
+#else
+        query.bindValue(":sslcert", QByteArray());
+        query.bindValue(":sslkey", QByteArray());
+#endif
+        query.bindValue(":identityid", identity.id().toInt());
+        safeExec(query);
+        watchQuery(query);
+
+        QSqlQuery deleteNickQuery(db);
+        deleteNickQuery.prepare(queryString("delete_nicks"));
+        deleteNickQuery.bindValue(":identityid", identity.id().toInt());
+        safeExec(deleteNickQuery);
+        watchQuery(deleteNickQuery);
+
+        QSqlQuery insertNickQuery(db);
+        insertNickQuery.prepare(queryString("insert_nick"));
+        foreach(QString nick, identity.nicks()) {
+            insertNickQuery.bindValue(":identityid", identity.id().toInt());
+            insertNickQuery.bindValue(":nick", nick);
+            safeExec(insertNickQuery);
+            watchQuery(insertNickQuery);
+        }
+        db.commit();
+    }
+    unlock();
+    return true;
+}
+
+
+void SqliteStorage::removeIdentity(UserId user, IdentityId identityId)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    bool error = false;
+    {
+        QSqlQuery checkQuery(db);
+        checkQuery.prepare(queryString("select_checkidentity"));
+        checkQuery.bindValue(":identityid", identityId.toInt());
+        checkQuery.bindValue(":userid", user.toInt());
+        lockForRead();
+        safeExec(checkQuery);
+
+        // there should be exactly one identity for the given id and user
+        error = (!checkQuery.first() || checkQuery.value(0).toInt() != 1);
+    }
+    if (error) {
+        unlock();
+        return;
+    }
+
+    {
+        QSqlQuery deleteNickQuery(db);
+        deleteNickQuery.prepare(queryString("delete_nicks"));
+        deleteNickQuery.bindValue(":identityid", identityId.toInt());
+        safeExec(deleteNickQuery);
+
+        QSqlQuery deleteIdentityQuery(db);
+        deleteIdentityQuery.prepare(queryString("delete_identity"));
+        deleteIdentityQuery.bindValue(":identityid", identityId.toInt());
+        deleteIdentityQuery.bindValue(":userid", user.toInt());
+        safeExec(deleteIdentityQuery);
+        db.commit();
+    }
+    unlock();
+}
+
+
+QList<CoreIdentity> SqliteStorage::identities(UserId user)
+{
+    QList<CoreIdentity> identities;
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("select_identities"));
+        query.bindValue(":userid", user.toInt());
+
+        QSqlQuery nickQuery(db);
+        nickQuery.prepare(queryString("select_nicks"));
+
+        lockForRead();
+        safeExec(query);
+
+        while (query.next()) {
+            CoreIdentity identity(IdentityId(query.value(0).toInt()));
+
+            identity.setIdentityName(query.value(1).toString());
+            identity.setRealName(query.value(2).toString());
+            identity.setAwayNick(query.value(3).toString());
+            identity.setAwayNickEnabled(!!query.value(4).toInt());
+            identity.setAwayReason(query.value(5).toString());
+            identity.setAwayReasonEnabled(!!query.value(6).toInt());
+            identity.setAutoAwayEnabled(!!query.value(7).toInt());
+            identity.setAutoAwayTime(query.value(8).toInt());
+            identity.setAutoAwayReason(query.value(9).toString());
+            identity.setAutoAwayReasonEnabled(!!query.value(10).toInt());
+            identity.setDetachAwayEnabled(!!query.value(11).toInt());
+            identity.setDetachAwayReason(query.value(12).toString());
+            identity.setDetachAwayReasonEnabled(!!query.value(13).toInt());
+            identity.setIdent(query.value(14).toString());
+            identity.setKickReason(query.value(15).toString());
+            identity.setPartReason(query.value(16).toString());
+            identity.setQuitReason(query.value(17).toString());
+#ifdef HAVE_SSL
+            identity.setSslCert(query.value(18).toByteArray());
+            identity.setSslKey(query.value(19).toByteArray());
+#endif
+
+            nickQuery.bindValue(":identityid", identity.id().toInt());
+            QList<QString> nicks;
+            safeExec(nickQuery);
+            watchQuery(nickQuery);
+            while (nickQuery.next()) {
+                nicks << nickQuery.value(0).toString();
+            }
+            identity.setNicks(nicks);
+            identities << identity;
+        }
+        db.commit();
+    }
+    unlock();
+    return identities;
+}
+
+
+NetworkId SqliteStorage::createNetwork(UserId user, const NetworkInfo &info)
+{
+    NetworkId networkId;
+
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    bool error = false;
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("insert_network"));
+        query.bindValue(":userid", user.toInt());
+        bindNetworkInfo(query, info);
+        lockForWrite();
+        safeExec(query);
+        if (!watchQuery(query)) {
+            db.rollback();
+            error = true;
+        }
+        else {
+            networkId = query.lastInsertId().toInt();
+        }
+    }
+    if (error) {
+        unlock();
+        return NetworkId();
+    }
+
+    {
+        QSqlQuery insertServersQuery(db);
+        insertServersQuery.prepare(queryString("insert_server"));
+        foreach(Network::Server server, info.serverList) {
+            insertServersQuery.bindValue(":userid", user.toInt());
+            insertServersQuery.bindValue(":networkid", networkId.toInt());
+            bindServerInfo(insertServersQuery, server);
+            safeExec(insertServersQuery);
+            if (!watchQuery(insertServersQuery)) {
+                db.rollback();
+                error = true;
+                break;
+            }
+        }
+        if (!error)
+            db.commit();
+    }
+    unlock();
+    if (error)
+        return NetworkId();
+    else
+        return networkId;
+}
+
+
+void SqliteStorage::bindNetworkInfo(QSqlQuery &query, const NetworkInfo &info)
+{
+    query.bindValue(":networkname", info.networkName);
+    query.bindValue(":identityid", info.identity.toInt());
+    query.bindValue(":encodingcodec", QString(info.codecForEncoding));
+    query.bindValue(":decodingcodec", QString(info.codecForDecoding));
+    query.bindValue(":servercodec", QString(info.codecForServer));
+    query.bindValue(":userandomserver", info.useRandomServer ? 1 : 0);
+    query.bindValue(":perform", info.perform.join("\n"));
+    query.bindValue(":useautoidentify", info.useAutoIdentify ? 1 : 0);
+    query.bindValue(":autoidentifyservice", info.autoIdentifyService);
+    query.bindValue(":autoidentifypassword", info.autoIdentifyPassword);
+    query.bindValue(":usesasl", info.useSasl ? 1 : 0);
+    query.bindValue(":saslaccount", info.saslAccount);
+    query.bindValue(":saslpassword", info.saslPassword);
+    query.bindValue(":useautoreconnect", info.useAutoReconnect ? 1 : 0);
+    query.bindValue(":autoreconnectinterval", info.autoReconnectInterval);
+    query.bindValue(":autoreconnectretries", info.autoReconnectRetries);
+    query.bindValue(":unlimitedconnectretries", info.unlimitedReconnectRetries ? 1 : 0);
+    query.bindValue(":rejoinchannels", info.rejoinChannels ? 1 : 0);
+    if (info.networkId.isValid())
+        query.bindValue(":networkid", info.networkId.toInt());
+}
+
+
+void SqliteStorage::bindServerInfo(QSqlQuery &query, const Network::Server &server)
+{
+    query.bindValue(":hostname", server.host);
+    query.bindValue(":port", server.port);
+    query.bindValue(":password", server.password);
+    query.bindValue(":ssl", server.useSsl ? 1 : 0);
+    query.bindValue(":sslversion", server.sslVersion);
+    query.bindValue(":useproxy", server.useProxy ? 1 : 0);
+    query.bindValue(":proxytype", server.proxyType);
+    query.bindValue(":proxyhost", server.proxyHost);
+    query.bindValue(":proxyport", server.proxyPort);
+    query.bindValue(":proxyuser", server.proxyUser);
+    query.bindValue(":proxypass", server.proxyPass);
+}
+
+
+bool SqliteStorage::updateNetwork(UserId user, const NetworkInfo &info)
+{
+    QSqlDatabase db = logDb();
+    bool error = false;
+    db.transaction();
+
+    {
+        QSqlQuery updateQuery(db);
+        updateQuery.prepare(queryString("update_network"));
+        updateQuery.bindValue(":userid", user.toInt());
+        bindNetworkInfo(updateQuery, info);
+
+        lockForWrite();
+        safeExec(updateQuery);
+        if (!watchQuery(updateQuery) || updateQuery.numRowsAffected() != 1) {
+            error = true;
+            db.rollback();
+        }
+    }
+    if (error) {
+        unlock();
+        return false;
+    }
+
+    {
+        QSqlQuery dropServersQuery(db);
+        dropServersQuery.prepare("DELETE FROM ircserver WHERE networkid = :networkid");
+        dropServersQuery.bindValue(":networkid", info.networkId.toInt());
+        safeExec(dropServersQuery);
+        if (!watchQuery(dropServersQuery)) {
+            error = true;
+            db.rollback();
+        }
+    }
+    if (error) {
+        unlock();
+        return false;
+    }
+
+    {
+        QSqlQuery insertServersQuery(db);
+        insertServersQuery.prepare(queryString("insert_server"));
+        foreach(Network::Server server, info.serverList) {
+            insertServersQuery.bindValue(":userid", user.toInt());
+            insertServersQuery.bindValue(":networkid", info.networkId.toInt());
+            bindServerInfo(insertServersQuery, server);
+            safeExec(insertServersQuery);
+            if (!watchQuery(insertServersQuery)) {
+                error = true;
+                db.rollback();
+                break;
+            }
+        }
+    }
+
+    db.commit();
+    unlock();
+    return !error;
+}
+
+
+bool SqliteStorage::removeNetwork(UserId user, const NetworkId &networkId)
+{
+    QSqlDatabase db = logDb();
+    bool error = false;
+    db.transaction();
+
+    {
+        QSqlQuery deleteNetworkQuery(db);
+        deleteNetworkQuery.prepare(queryString("delete_network"));
+        deleteNetworkQuery.bindValue(":networkid", networkId.toInt());
+        deleteNetworkQuery.bindValue(":userid", user.toInt());
+        lockForWrite();
+        safeExec(deleteNetworkQuery);
+        if (!watchQuery(deleteNetworkQuery) || deleteNetworkQuery.numRowsAffected() != 1) {
+            error = true;
+            db.rollback();
+        }
+    }
+    if (error) {
+        unlock();
+        return false;
+    }
+
+    {
+        QSqlQuery deleteBacklogQuery(db);
+        deleteBacklogQuery.prepare(queryString("delete_backlog_for_network"));
+        deleteBacklogQuery.bindValue(":networkid", networkId.toInt());
+        safeExec(deleteBacklogQuery);
+        if (!watchQuery(deleteBacklogQuery)) {
+            db.rollback();
+            error = true;
+        }
+    }
+    if (error) {
+        unlock();
+        return false;
+    }
+
+    {
+        QSqlQuery deleteBuffersQuery(db);
+        deleteBuffersQuery.prepare(queryString("delete_buffers_for_network"));
+        deleteBuffersQuery.bindValue(":networkid", networkId.toInt());
+        safeExec(deleteBuffersQuery);
+        if (!watchQuery(deleteBuffersQuery)) {
+            db.rollback();
+            error = true;
+        }
+    }
+    if (error) {
+        unlock();
+        return false;
+    }
+
+    {
+        QSqlQuery deleteServersQuery(db);
+        deleteServersQuery.prepare(queryString("delete_ircservers_for_network"));
+        deleteServersQuery.bindValue(":networkid", networkId.toInt());
+        safeExec(deleteServersQuery);
+        if (!watchQuery(deleteServersQuery)) {
+            db.rollback();
+            error = true;
+        }
+    }
+    if (error) {
+        unlock();
+        return false;
+    }
+
+    db.commit();
+    unlock();
+    return true;
+}
+
+
+QList<NetworkInfo> SqliteStorage::networks(UserId user)
+{
+    QList<NetworkInfo> nets;
+
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    {
+        QSqlQuery networksQuery(db);
+        networksQuery.prepare(queryString("select_networks_for_user"));
+        networksQuery.bindValue(":userid", user.toInt());
+
+        QSqlQuery serversQuery(db);
+        serversQuery.prepare(queryString("select_servers_for_network"));
+
+        lockForRead();
+        safeExec(networksQuery);
+        if (watchQuery(networksQuery)) {
+            while (networksQuery.next()) {
+                NetworkInfo net;
+                net.networkId = networksQuery.value(0).toInt();
+                net.networkName = networksQuery.value(1).toString();
+                net.identity = networksQuery.value(2).toInt();
+                net.codecForServer = networksQuery.value(3).toString().toAscii();
+                net.codecForEncoding = networksQuery.value(4).toString().toAscii();
+                net.codecForDecoding = networksQuery.value(5).toString().toAscii();
+                net.useRandomServer = networksQuery.value(6).toInt() == 1 ? true : false;
+                net.perform = networksQuery.value(7).toString().split("\n");
+                net.useAutoIdentify = networksQuery.value(8).toInt() == 1 ? true : false;
+                net.autoIdentifyService = networksQuery.value(9).toString();
+                net.autoIdentifyPassword = networksQuery.value(10).toString();
+                net.useAutoReconnect = networksQuery.value(11).toInt() == 1 ? true : false;
+                net.autoReconnectInterval = networksQuery.value(12).toUInt();
+                net.autoReconnectRetries = networksQuery.value(13).toInt();
+                net.unlimitedReconnectRetries = networksQuery.value(14).toInt() == 1 ? true : false;
+                net.rejoinChannels = networksQuery.value(15).toInt() == 1 ? true : false;
+                net.useSasl = networksQuery.value(16).toInt() == 1 ? true : false;
+                net.saslAccount = networksQuery.value(17).toString();
+                net.saslPassword = networksQuery.value(18).toString();
+
+                serversQuery.bindValue(":networkid", net.networkId.toInt());
+                safeExec(serversQuery);
+                if (!watchQuery(serversQuery)) {
+                    nets.clear();
+                    break;
+                }
+                else {
+                    Network::ServerList servers;
+                    while (serversQuery.next()) {
+                        Network::Server server;
+                        server.host = serversQuery.value(0).toString();
+                        server.port = serversQuery.value(1).toUInt();
+                        server.password = serversQuery.value(2).toString();
+                        server.useSsl = serversQuery.value(3).toInt() == 1 ? true : false;
+                        server.sslVersion = serversQuery.value(4).toInt();
+                        server.useProxy = serversQuery.value(5).toInt() == 1 ? true : false;
+                        server.proxyType = serversQuery.value(6).toInt();
+                        server.proxyHost = serversQuery.value(7).toString();
+                        server.proxyPort = serversQuery.value(8).toUInt();
+                        server.proxyUser = serversQuery.value(9).toString();
+                        server.proxyPass = serversQuery.value(10).toString();
+                        servers << server;
+                    }
+                    net.serverList = servers;
+                    nets << net;
+                }
+            }
+        }
+    }
+    db.commit();
+    unlock();
+    return nets;
+}
+
+
+QList<NetworkId> SqliteStorage::connectedNetworks(UserId user)
+{
+    QList<NetworkId> connectedNets;
+
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("select_connected_networks"));
+        query.bindValue(":userid", user.toInt());
+        lockForRead();
+        safeExec(query);
+        watchQuery(query);
+
+        while (query.next()) {
+            connectedNets << query.value(0).toInt();
+        }
+        db.commit();
+    }
+    unlock();
+    return connectedNets;
+}
+
+
+void SqliteStorage::setNetworkConnected(UserId user, const NetworkId &networkId, bool isConnected)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("update_network_connected"));
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":networkid", networkId.toInt());
+        query.bindValue(":connected", isConnected ? 1 : 0);
+
+        lockForWrite();
+        safeExec(query);
+        watchQuery(query);
+        db.commit();
+    }
+    unlock();
+}
+
+
+QHash<QString, QString> SqliteStorage::persistentChannels(UserId user, const NetworkId &networkId)
+{
+    QHash<QString, QString> persistentChans;
+
+    QSqlDatabase db = logDb();
+    db.transaction();
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("select_persistent_channels"));
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":networkid", networkId.toInt());
+
+        lockForRead();
+        safeExec(query);
+        watchQuery(query);
+        while (query.next()) {
+            persistentChans[query.value(0).toString()] = query.value(1).toString();
+        }
+    }
+    unlock();
+    return persistentChans;
+}
+
+
+void SqliteStorage::setChannelPersistent(UserId user, const NetworkId &networkId, const QString &channel, bool isJoined)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("update_buffer_persistent_channel"));
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":networkId", networkId.toInt());
+        query.bindValue(":buffercname", channel.toLower());
+        query.bindValue(":joined", isJoined ? 1 : 0);
+
+        lockForWrite();
+        safeExec(query);
+        watchQuery(query);
+        db.commit();
+    }
+    unlock();
+}
+
+
+void SqliteStorage::setPersistentChannelKey(UserId user, const NetworkId &networkId, const QString &channel, const QString &key)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("update_buffer_set_channel_key"));
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":networkId", networkId.toInt());
+        query.bindValue(":buffercname", channel.toLower());
+        query.bindValue(":key", key);
+
+        lockForWrite();
+        safeExec(query);
+        watchQuery(query);
+        db.commit();
+    }
+    unlock();
+}
+
+
+QString SqliteStorage::awayMessage(UserId user, NetworkId networkId)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    QString awayMsg;
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("select_network_awaymsg"));
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":networkid", networkId.toInt());
+
+        lockForRead();
+        safeExec(query);
+        watchQuery(query);
+        if (query.first())
+            awayMsg = query.value(0).toString();
+        db.commit();
+    }
+    unlock();
+
+    return awayMsg;
+}
+
+
+void SqliteStorage::setAwayMessage(UserId user, NetworkId networkId, const QString &awayMsg)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("update_network_set_awaymsg"));
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":networkid", networkId.toInt());
+        query.bindValue(":awaymsg", awayMsg);
+
+        lockForWrite();
+        safeExec(query);
+        watchQuery(query);
+        db.commit();
+    }
+    unlock();
+}
+
+
+QString SqliteStorage::userModes(UserId user, NetworkId networkId)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    QString modes;
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("select_network_usermode"));
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":networkid", networkId.toInt());
+
+        lockForRead();
+        safeExec(query);
+        watchQuery(query);
+        if (query.first())
+            modes = query.value(0).toString();
+        db.commit();
+    }
+    unlock();
+
+    return modes;
+}
+
+
+void SqliteStorage::setUserModes(UserId user, NetworkId networkId, const QString &userModes)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("update_network_set_usermode"));
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":networkid", networkId.toInt());
+        query.bindValue(":usermode", userModes);
+
+        lockForWrite();
+        safeExec(query);
+        watchQuery(query);
+        db.commit();
+    }
+    unlock();
+}
+
+
+BufferInfo SqliteStorage::bufferInfo(UserId user, const NetworkId &networkId, BufferInfo::Type type, const QString &buffer, bool create)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    BufferInfo bufferInfo;
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("select_bufferByName"));
+        query.bindValue(":networkid", networkId.toInt());
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":buffercname", buffer.toLower());
+
+        lockForRead();
+        safeExec(query);
+
+        if (query.first()) {
+            bufferInfo = BufferInfo(query.value(0).toInt(), networkId, (BufferInfo::Type)query.value(1).toInt(), 0, buffer);
+            if (query.next()) {
+                qCritical() << "SqliteStorage::getBufferInfo(): received more then one Buffer!";
+                qCritical() << "         Query:" << query.lastQuery();
+                qCritical() << "  bound Values:";
+                QList<QVariant> list = query.boundValues().values();
+                for (int i = 0; i < list.size(); ++i)
+                    qCritical() << i << ":" << list.at(i).toString().toAscii().data();
+                Q_ASSERT(false);
+            }
+        }
+        else if (create) {
+            // let's create the buffer
+            QSqlQuery createQuery(db);
+            createQuery.prepare(queryString("insert_buffer"));
+            createQuery.bindValue(":userid", user.toInt());
+            createQuery.bindValue(":networkid", networkId.toInt());
+            createQuery.bindValue(":buffertype", (int)type);
+            createQuery.bindValue(":buffername", buffer);
+            createQuery.bindValue(":buffercname", buffer.toLower());
+            createQuery.bindValue(":joined", type & BufferInfo::ChannelBuffer ? 1 : 0);
+
+            unlock();
+            lockForWrite();
+            safeExec(createQuery);
+            watchQuery(createQuery);
+            bufferInfo = BufferInfo(createQuery.lastInsertId().toInt(), networkId, type, 0, buffer);
+        }
+    }
+    db.commit();
+    unlock();
+    return bufferInfo;
+}
+
+
+BufferInfo SqliteStorage::getBufferInfo(UserId user, const BufferId &bufferId)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    BufferInfo bufferInfo;
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("select_buffer_by_id"));
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":bufferid", bufferId.toInt());
+
+        lockForRead();
+        safeExec(query);
+
+        if (watchQuery(query) && query.first()) {
+            bufferInfo = BufferInfo(query.value(0).toInt(), query.value(1).toInt(), (BufferInfo::Type)query.value(2).toInt(), 0, query.value(4).toString());
+            Q_ASSERT(!query.next());
+        }
+        db.commit();
+    }
+    unlock();
+    return bufferInfo;
+}
+
+
+QList<BufferInfo> SqliteStorage::requestBuffers(UserId user)
+{
+    QList<BufferInfo> bufferlist;
+
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("select_buffers"));
+        query.bindValue(":userid", user.toInt());
+
+        lockForRead();
+        safeExec(query);
+        watchQuery(query);
+        while (query.next()) {
+            bufferlist << BufferInfo(query.value(0).toInt(), query.value(1).toInt(), (BufferInfo::Type)query.value(2).toInt(), query.value(3).toInt(), query.value(4).toString());
+        }
+        db.commit();
+    }
+    unlock();
+
+    return bufferlist;
+}
+
+
+QList<BufferId> SqliteStorage::requestBufferIdsForNetwork(UserId user, NetworkId networkId)
+{
+    QList<BufferId> bufferList;
+
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("select_buffers_for_network"));
+        query.bindValue(":networkid", networkId.toInt());
+        query.bindValue(":userid", user.toInt());
+
+        lockForRead();
+        safeExec(query);
+        watchQuery(query);
+        while (query.next()) {
+            bufferList << BufferId(query.value(0).toInt());
+        }
+        db.commit();
+    }
+    unlock();
+
+    return bufferList;
 }
 
+
+bool SqliteStorage::removeBuffer(const UserId &user, const BufferId &bufferId)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    bool error = false;
+    {
+        QSqlQuery delBufferQuery(db);
+        delBufferQuery.prepare(queryString("delete_buffer_for_bufferid"));
+        delBufferQuery.bindValue(":bufferid", bufferId.toInt());
+        delBufferQuery.bindValue(":userid", user.toInt());
+
+        lockForWrite();
+        safeExec(delBufferQuery);
+
+        error = (!watchQuery(delBufferQuery) || delBufferQuery.numRowsAffected() != 1);
+    }
+
+    if (error) {
+        db.rollback();
+        unlock();
+        return false;
+    }
+
+    {
+        QSqlQuery delBacklogQuery(db);
+        delBacklogQuery.prepare(queryString("delete_backlog_for_buffer"));
+        delBacklogQuery.bindValue(":bufferid", bufferId.toInt());
+
+        safeExec(delBacklogQuery);
+        error = !watchQuery(delBacklogQuery);
+    }
+
+    if (error) {
+        db.rollback();
+    }
+    else {
+        db.commit();
+    }
+    unlock();
+    return !error;
+}
+
+
+bool SqliteStorage::renameBuffer(const UserId &user, const BufferId &bufferId, const QString &newName)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    bool error = false;
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("update_buffer_name"));
+        query.bindValue(":buffername", newName);
+        query.bindValue(":buffercname", newName.toLower());
+        query.bindValue(":bufferid", bufferId.toInt());
+        query.bindValue(":userid", user.toInt());
+
+        lockForWrite();
+        safeExec(query);
+
+        error = query.lastError().isValid();
+        // unexepcted error occured (19 == constraint violation)
+        if (error && query.lastError().number() != 19) {
+            watchQuery(query);
+        }
+        else {
+            error |= (query.numRowsAffected() != 1);
+        }
+    }
+    if (error) {
+        db.rollback();
+    }
+    else {
+        db.commit();
+    }
+    unlock();
+    return !error;
+}
+
+
+bool SqliteStorage::mergeBuffersPermanently(const UserId &user, const BufferId &bufferId1, const BufferId &bufferId2)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    bool error = false;
+    {
+        QSqlQuery checkQuery(db);
+        checkQuery.prepare(queryString("select_buffers_for_merge"));
+        checkQuery.bindValue(":oldbufferid", bufferId2.toInt());
+        checkQuery.bindValue(":newbufferid", bufferId1.toInt());
+        checkQuery.bindValue(":userid", user.toInt());
+
+        lockForRead();
+        safeExec(checkQuery);
+        error = (!checkQuery.first() || checkQuery.value(0).toInt() != 2);
+    }
+    if (error) {
+        db.rollback();
+        unlock();
+        return false;
+    }
+
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("update_backlog_bufferid"));
+        query.bindValue(":oldbufferid", bufferId2.toInt());
+        query.bindValue(":newbufferid", bufferId1.toInt());
+        safeExec(query);
+        error = !watchQuery(query);
+    }
+    if (error) {
+        db.rollback();
+        unlock();
+        return false;
+    }
+
+    {
+        QSqlQuery delBufferQuery(db);
+        delBufferQuery.prepare(queryString("delete_buffer_for_bufferid"));
+        delBufferQuery.bindValue(":bufferid", bufferId2.toInt());
+        delBufferQuery.bindValue(":userid", user.toInt());
+        safeExec(delBufferQuery);
+        error = !watchQuery(delBufferQuery);
+    }
+
+    if (error) {
+        db.rollback();
+    }
+    else {
+        db.commit();
+    }
+    unlock();
+    return !error;
+}
+
+
+void SqliteStorage::setBufferLastSeenMsg(UserId user, const BufferId &bufferId, const MsgId &msgId)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("update_buffer_lastseen"));
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":bufferid", bufferId.toInt());
+        query.bindValue(":lastseenmsgid", msgId.toInt());
+
+        lockForWrite();
+        safeExec(query);
+        watchQuery(query);
+    }
+    db.commit();
+    unlock();
+}
+
+
+QHash<BufferId, MsgId> SqliteStorage::bufferLastSeenMsgIds(UserId user)
+{
+    QHash<BufferId, MsgId> lastSeenHash;
+
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    bool error = false;
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("select_buffer_lastseen_messages"));
+        query.bindValue(":userid", user.toInt());
+
+        lockForRead();
+        safeExec(query);
+        error = !watchQuery(query);
+        if (!error) {
+            while (query.next()) {
+                lastSeenHash[query.value(0).toInt()] = query.value(1).toInt();
+            }
+        }
+    }
+
+    db.commit();
+    unlock();
+    return lastSeenHash;
+}
+
+
+void SqliteStorage::setBufferMarkerLineMsg(UserId user, const BufferId &bufferId, const MsgId &msgId)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("update_buffer_markerlinemsgid"));
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":bufferid", bufferId.toInt());
+        query.bindValue(":markerlinemsgid", msgId.toInt());
+
+        lockForWrite();
+        safeExec(query);
+        watchQuery(query);
+    }
+    db.commit();
+    unlock();
+}
+
+
+QHash<BufferId, MsgId> SqliteStorage::bufferMarkerLineMsgIds(UserId user)
+{
+    QHash<BufferId, MsgId> markerLineHash;
+
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    bool error = false;
+    {
+        QSqlQuery query(db);
+        query.prepare(queryString("select_buffer_markerlinemsgids"));
+        query.bindValue(":userid", user.toInt());
+
+        lockForRead();
+        safeExec(query);
+        error = !watchQuery(query);
+        if (!error) {
+            while (query.next()) {
+                markerLineHash[query.value(0).toInt()] = query.value(1).toInt();
+            }
+        }
+    }
+
+    db.commit();
+    unlock();
+    return markerLineHash;
+}
+
+
+bool SqliteStorage::logMessage(Message &msg)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    bool error = false;
+    {
+        QSqlQuery logMessageQuery(db);
+        logMessageQuery.prepare(queryString("insert_message"));
+
+        logMessageQuery.bindValue(":time", msg.timestamp().toTime_t());
+        logMessageQuery.bindValue(":bufferid", msg.bufferInfo().bufferId().toInt());
+        logMessageQuery.bindValue(":type", msg.type());
+        logMessageQuery.bindValue(":flags", (int)msg.flags());
+        logMessageQuery.bindValue(":sender", msg.sender());
+        logMessageQuery.bindValue(":message", msg.contents());
+
+        lockForWrite();
+        safeExec(logMessageQuery);
+
+        if (logMessageQuery.lastError().isValid()) {
+            // constraint violation - must be NOT NULL constraint - probably the sender is missing...
+            if (logMessageQuery.lastError().number() == 19) {
+                QSqlQuery addSenderQuery(db);
+                addSenderQuery.prepare(queryString("insert_sender"));
+                addSenderQuery.bindValue(":sender", msg.sender());
+                safeExec(addSenderQuery);
+                safeExec(logMessageQuery);
+                error = !watchQuery(logMessageQuery);
+            }
+            else {
+                watchQuery(logMessageQuery);
+            }
+        }
+        if (!error) {
+            MsgId msgId = logMessageQuery.lastInsertId().toInt();
+            if (msgId.isValid()) {
+                msg.setMsgId(msgId);
+            }
+            else {
+                error = true;
+            }
+        }
+    }
+
+    if (error) {
+        db.rollback();
+    }
+    else {
+        db.commit();
+    }
+
+    unlock();
+    return !error;
+}
+
+
+bool SqliteStorage::logMessages(MessageList &msgs)
+{
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    {
+        QSet<QString> senders;
+        QSqlQuery addSenderQuery(db);
+        addSenderQuery.prepare(queryString("insert_sender"));
+        lockForWrite();
+        for (int i = 0; i < msgs.count(); i++) {
+            const QString &sender = msgs.at(i).sender();
+            if (senders.contains(sender))
+                continue;
+            senders << sender;
+
+            addSenderQuery.bindValue(":sender", sender);
+            safeExec(addSenderQuery);
+        }
+    }
+
+    bool error = false;
+    {
+        QSqlQuery logMessageQuery(db);
+        logMessageQuery.prepare(queryString("insert_message"));
+        for (int i = 0; i < msgs.count(); i++) {
+            Message &msg = msgs[i];
+
+            logMessageQuery.bindValue(":time", msg.timestamp().toTime_t());
+            logMessageQuery.bindValue(":bufferid", msg.bufferInfo().bufferId().toInt());
+            logMessageQuery.bindValue(":type", msg.type());
+            logMessageQuery.bindValue(":flags", (int)msg.flags());
+            logMessageQuery.bindValue(":sender", msg.sender());
+            logMessageQuery.bindValue(":message", msg.contents());
+
+            safeExec(logMessageQuery);
+            if (!watchQuery(logMessageQuery)) {
+                error = true;
+                break;
+            }
+            else {
+                msg.setMsgId(logMessageQuery.lastInsertId().toInt());
+            }
+        }
+    }
+
+    if (error) {
+        db.rollback();
+        unlock();
+        // we had a rollback in the db so we need to reset all msgIds
+        for (int i = 0; i < msgs.count(); i++) {
+            msgs[i].setMsgId(MsgId());
+        }
+    }
+    else {
+        db.commit();
+        unlock();
+    }
+    return !error;
+}
+
+
+QList<Message> SqliteStorage::requestMsgs(UserId user, BufferId bufferId, MsgId first, MsgId last, int limit)
+{
+    QList<Message> messagelist;
+
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    bool error = false;
+    BufferInfo bufferInfo;
+    {
+        // code dupication from getBufferInfo:
+        // this is due to the impossibility of nesting transactions and recursive locking
+        QSqlQuery bufferInfoQuery(db);
+        bufferInfoQuery.prepare(queryString("select_buffer_by_id"));
+        bufferInfoQuery.bindValue(":userid", user.toInt());
+        bufferInfoQuery.bindValue(":bufferid", bufferId.toInt());
+
+        lockForRead();
+        safeExec(bufferInfoQuery);
+        error = !watchQuery(bufferInfoQuery) || !bufferInfoQuery.first();
+        if (!error) {
+            bufferInfo = BufferInfo(bufferInfoQuery.value(0).toInt(), bufferInfoQuery.value(1).toInt(), (BufferInfo::Type)bufferInfoQuery.value(2).toInt(), 0, bufferInfoQuery.value(4).toString());
+            error = !bufferInfo.isValid();
+        }
+    }
+    if (error) {
+        db.rollback();
+        unlock();
+        return messagelist;
+    }
+
+    {
+        QSqlQuery query(db);
+        if (last == -1 && first == -1) {
+            query.prepare(queryString("select_messagesNewestK"));
+        }
+        else if (last == -1) {
+            query.prepare(queryString("select_messagesNewerThan"));
+            query.bindValue(":firstmsg", first.toInt());
+        }
+        else {
+            query.prepare(queryString("select_messages"));
+            query.bindValue(":lastmsg", last.toInt());
+            query.bindValue(":firstmsg", first.toInt());
+        }
+        query.bindValue(":bufferid", bufferId.toInt());
+        query.bindValue(":limit", limit);
+
+        safeExec(query);
+        watchQuery(query);
+
+        while (query.next()) {
+            Message msg(QDateTime::fromTime_t(query.value(1).toInt()),
+                bufferInfo,
+                (Message::Type)query.value(2).toUInt(),
+                query.value(5).toString(),
+                query.value(4).toString(),
+                (Message::Flags)query.value(3).toUInt());
+            msg.setMsgId(query.value(0).toInt());
+            messagelist << msg;
+        }
+    }
+    db.commit();
+    unlock();
+
+    return messagelist;
+}
+
+
+QList<Message> SqliteStorage::requestAllMsgs(UserId user, MsgId first, MsgId last, int limit)
+{
+    QList<Message> messagelist;
+
+    QSqlDatabase db = logDb();
+    db.transaction();
+
+    QHash<BufferId, BufferInfo> bufferInfoHash;
+    {
+        QSqlQuery bufferInfoQuery(db);
+        bufferInfoQuery.prepare(queryString("select_buffers"));
+        bufferInfoQuery.bindValue(":userid", user.toInt());
+
+        lockForRead();
+        safeExec(bufferInfoQuery);
+        watchQuery(bufferInfoQuery);
+        while (bufferInfoQuery.next()) {
+            BufferInfo bufferInfo = BufferInfo(bufferInfoQuery.value(0).toInt(), bufferInfoQuery.value(1).toInt(), (BufferInfo::Type)bufferInfoQuery.value(2).toInt(), bufferInfoQuery.value(3).toInt(), bufferInfoQuery.value(4).toString());
+            bufferInfoHash[bufferInfo.bufferId()] = bufferInfo;
+        }
+
+        QSqlQuery query(db);
+        if (last == -1) {
+            query.prepare(queryString("select_messagesAllNew"));
+        }
+        else {
+            query.prepare(queryString("select_messagesAll"));
+            query.bindValue(":lastmsg", last.toInt());
+        }
+        query.bindValue(":userid", user.toInt());
+        query.bindValue(":firstmsg", first.toInt());
+        query.bindValue(":limit", limit);
+        safeExec(query);
+
+        watchQuery(query);
+
+        while (query.next()) {
+            Message msg(QDateTime::fromTime_t(query.value(2).toInt()),
+                bufferInfoHash[query.value(1).toInt()],
+                (Message::Type)query.value(3).toUInt(),
+                query.value(6).toString(),
+                query.value(5).toString(),
+                (Message::Flags)query.value(4).toUInt());
+            msg.setMsgId(query.value(0).toInt());
+            messagelist << msg;
+        }
+    }
+    db.commit();
+    unlock();
+    return messagelist;
+}
+
+
+QString SqliteStorage::backlogFile()
+{
+    return Quassel::configDirPath() + "quassel-storage.sqlite";
+}
+
+
+bool SqliteStorage::safeExec(QSqlQuery &query, int retryCount)
+{
+    query.exec();
+
+    if (!query.lastError().isValid())
+        return true;
+
+    switch (query.lastError().number()) {
+    case 5: // SQLITE_BUSY         5   /* The database file is locked */
+    case 6: // SQLITE_LOCKED       6   /* A table in the database is locked */
+        if (retryCount < _maxRetryCount)
+            return safeExec(query, retryCount + 1);
+    default:
+        return false;
+    }
+}
+
+
+// ========================================
+//  SqliteMigration
+// ========================================
+SqliteMigrationReader::SqliteMigrationReader()
+    : SqliteStorage(),
+    _maxId(0)
+{
+}
+
+
+void SqliteMigrationReader::setMaxId(MigrationObject mo)
+{
+    QString queryString;
+    switch (mo) {
+    case Sender:
+        queryString = "SELECT max(senderid) FROM sender";
+        break;
+    case Backlog:
+        queryString = "SELECT max(messageid) FROM backlog";
+        break;
+    default:
+        _maxId = 0;
+        return;
+    }
+    QSqlQuery query = logDb().exec(queryString);
+    query.first();
+    _maxId = query.value(0).toInt();
+}
+
+
+bool SqliteMigrationReader::prepareQuery(MigrationObject mo)
+{
+    setMaxId(mo);
+
+    switch (mo) {
+    case QuasselUser:
+        newQuery(queryString("migrate_read_quasseluser"), logDb());
+        break;
+    case Identity:
+        newQuery(queryString("migrate_read_identity"), logDb());
+        break;
+    case IdentityNick:
+        newQuery(queryString("migrate_read_identity_nick"), logDb());
+        break;
+    case Network:
+        newQuery(queryString("migrate_read_network"), logDb());
+        break;
+    case Buffer:
+        newQuery(queryString("migrate_read_buffer"), logDb());
+        break;
+    case Sender:
+        newQuery(queryString("migrate_read_sender"), logDb());
+        bindValue(0, 0);
+        bindValue(1, stepSize());
+        break;
+    case Backlog:
+        newQuery(queryString("migrate_read_backlog"), logDb());
+        bindValue(0, 0);
+        bindValue(1, stepSize());
+        break;
+    case IrcServer:
+        newQuery(queryString("migrate_read_ircserver"), logDb());
+        break;
+    case UserSetting:
+        newQuery(queryString("migrate_read_usersetting"), logDb());
+        break;
+    }
+    return exec();
+}
+
+
+bool SqliteMigrationReader::readMo(QuasselUserMO &user)
+{
+    if (!next())
+        return false;
+
+    user.id = value(0).toInt();
+    user.username = value(1).toString();
+    user.password = value(2).toString();
+    return true;
+}
+
+
+bool SqliteMigrationReader::readMo(IdentityMO &identity)
+{
+    if (!next())
+        return false;
+
+    identity.id = value(0).toInt();
+    identity.userid = value(1).toInt();
+    identity.identityname = value(2).toString();
+    identity.realname = value(3).toString();
+    identity.awayNick = value(4).toString();
+    identity.awayNickEnabled = value(5).toInt() == 1 ? true : false;
+    identity.awayReason = value(6).toString();
+    identity.awayReasonEnabled = value(7).toInt() == 1 ? true : false;
+    identity.autoAwayEnabled = value(8).toInt() == 1 ? true : false;
+    identity.autoAwayTime = value(9).toInt();
+    identity.autoAwayReason = value(10).toString();
+    identity.autoAwayReasonEnabled = value(11).toInt() == 1 ? true : false;
+    identity.detachAwayEnabled = value(12).toInt() == 1 ? true : false;
+    identity.detachAwayReason = value(13).toString();
+    identity.detchAwayReasonEnabled = value(14).toInt() == 1 ? true : false;
+    identity.ident = value(15).toString();
+    identity.kickReason = value(16).toString();
+    identity.partReason = value(17).toString();
+    identity.quitReason = value(18).toString();
+    identity.sslCert = value(19).toByteArray();
+    identity.sslKey = value(20).toByteArray();
+    return true;
+}
+
+
+bool SqliteMigrationReader::readMo(IdentityNickMO &identityNick)
+{
+    if (!next())
+        return false;
+
+    identityNick.nickid = value(0).toInt();
+    identityNick.identityId = value(1).toInt();
+    identityNick.nick = value(2).toString();
+    return true;
+}
+
+
+bool SqliteMigrationReader::readMo(NetworkMO &network)
+{
+    if (!next())
+        return false;
+
+    network.networkid = value(0).toInt();
+    network.userid = value(1).toInt();
+    network.networkname = value(2).toString();
+    network.identityid = value(3).toInt();
+    network.encodingcodec = value(4).toString();
+    network.decodingcodec = value(5).toString();
+    network.servercodec = value(6).toString();
+    network.userandomserver = value(7).toInt() == 1 ? true : false;
+    network.perform = value(8).toString();
+    network.useautoidentify = value(9).toInt() == 1 ? true : false;
+    network.autoidentifyservice = value(10).toString();
+    network.autoidentifypassword = value(11).toString();
+    network.useautoreconnect = value(12).toInt() == 1 ? true : false;
+    network.autoreconnectinterval = value(13).toInt();
+    network.autoreconnectretries = value(14).toInt();
+    network.unlimitedconnectretries = value(15).toInt() == 1 ? true : false;
+    network.rejoinchannels = value(16).toInt() == 1 ? true : false;
+    network.connected = value(17).toInt() == 1 ? true : false;
+    network.usermode = value(18).toString();
+    network.awaymessage = value(19).toString();
+    network.attachperform = value(20).toString();
+    network.detachperform = value(21).toString();
+    network.usesasl = value(22).toInt() == 1 ? true : false;
+    network.saslaccount = value(23).toString();
+    network.saslpassword = value(24).toString();
+    return true;
+}
+
+
+bool SqliteMigrationReader::readMo(BufferMO &buffer)
+{
+    if (!next())
+        return false;
+
+    buffer.bufferid = value(0).toInt();
+    buffer.userid = value(1).toInt();
+    buffer.groupid = value(2).toInt();
+    buffer.networkid = value(3).toInt();
+    buffer.buffername = value(4).toString();
+    buffer.buffercname = value(5).toString();
+    buffer.buffertype = value(6).toInt();
+    buffer.lastseenmsgid = value(7).toInt();
+    buffer.markerlinemsgid = value(8).toInt();
+    buffer.key = value(9).toString();
+    buffer.joined = value(10).toInt() == 1 ? true : false;
+    return true;
+}
+
+
+bool SqliteMigrationReader::readMo(SenderMO &sender)
+{
+    int skipSteps = 0;
+    while (!next()) {
+        if (sender.senderId < _maxId) {
+            bindValue(0, sender.senderId + (skipSteps * stepSize()));
+            bindValue(1, sender.senderId + ((skipSteps + 1) * stepSize()));
+            skipSteps++;
+            if (!exec())
+                return false;
+        }
+        else {
+            return false;
+        }
+    }
+
+    sender.senderId = value(0).toInt();
+    sender.sender = value(1).toString();
+    return true;
+}
+
+
+bool SqliteMigrationReader::readMo(BacklogMO &backlog)
+{
+    int skipSteps = 0;
+    while (!next()) {
+        if (backlog.messageid < _maxId) {
+            bindValue(0, backlog.messageid.toInt() + (skipSteps * stepSize()));
+            bindValue(1, backlog.messageid.toInt() + ((skipSteps + 1) * stepSize()));
+            skipSteps++;
+            if (!exec())
+                return false;
+        }
+        else {
+            return false;
+        }
+    }
+
+    backlog.messageid = value(0).toInt();
+    backlog.time = QDateTime::fromTime_t(value(1).toInt()).toUTC();
+    backlog.bufferid = value(2).toInt();
+    backlog.type = value(3).toInt();
+    backlog.flags = value(4).toInt();
+    backlog.senderid = value(5).toInt();
+    backlog.message = value(6).toString();
+    return true;
+}
+
+
+bool SqliteMigrationReader::readMo(IrcServerMO &ircserver)
+{
+    if (!next())
+        return false;
+
+    ircserver.serverid = value(0).toInt();
+    ircserver.userid = value(1).toInt();
+    ircserver.networkid = value(2).toInt();
+    ircserver.hostname = value(3).toString();
+    ircserver.port = value(4).toInt();
+    ircserver.password = value(5).toString();
+    ircserver.ssl = value(6).toInt() == 1 ? true : false;
+    ircserver.sslversion = value(7).toInt();
+    ircserver.useproxy = value(8).toInt() == 1 ? true : false;
+    ircserver.proxytype = value(9).toInt();
+    ircserver.proxyhost = value(10).toString();
+    ircserver.proxyport = value(11).toInt();
+    ircserver.proxyuser = value(12).toString();
+    ircserver.proxypass = value(13).toString();
+    return true;
+}
+
+
+bool SqliteMigrationReader::readMo(UserSettingMO &userSetting)
+{
+    if (!next())
+        return false;
+
+    userSetting.userid = value(0).toInt();
+    userSetting.settingname = value(1).toString();
+    userSetting.settingvalue = value(2).toByteArray();
+
+    return true;
+}