src/plugins/bearer/qnetworksession_impl.cpp
changeset 30 5dc02b23752f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/plugins/bearer/qnetworksession_impl.cpp	Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,446 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qnetworksession_impl.h"
+#include "qbearerengine_impl.h"
+
+#include <QtNetwork/qnetworksession.h>
+#include <QtNetwork/private/qnetworkconfigmanager_p.h>
+
+#include <QtCore/qstringlist.h>
+#include <QtCore/qdebug.h>
+#include <QtCore/qmutex.h>
+
+#ifndef QT_NO_BEARERMANAGEMENT
+
+QT_BEGIN_NAMESPACE
+
+static QBearerEngineImpl *getEngineFromId(const QString &id)
+{
+    QNetworkConfigurationManagerPrivate *priv = qNetworkConfigurationManagerPrivate();
+
+    foreach (QBearerEngine *engine, priv->engines()) {
+        QBearerEngineImpl *engineImpl = qobject_cast<QBearerEngineImpl *>(engine);
+        if (engineImpl && engineImpl->hasIdentifier(id))
+            return engineImpl;
+    }
+
+    return 0;
+}
+
+class QNetworkSessionManagerPrivate : public QObject
+{
+    Q_OBJECT
+
+public:
+    QNetworkSessionManagerPrivate(QObject *parent = 0);
+    ~QNetworkSessionManagerPrivate();
+
+    void forceSessionClose(const QNetworkConfiguration &config);
+
+Q_SIGNALS:
+    void forcedSessionClose(const QNetworkConfiguration &config);
+};
+
+#include "qnetworksession_impl.moc"
+
+Q_GLOBAL_STATIC(QNetworkSessionManagerPrivate, sessionManager);
+
+QNetworkSessionManagerPrivate::QNetworkSessionManagerPrivate(QObject *parent)
+:   QObject(parent)
+{
+}
+
+QNetworkSessionManagerPrivate::~QNetworkSessionManagerPrivate()
+{
+}
+
+void QNetworkSessionManagerPrivate::forceSessionClose(const QNetworkConfiguration &config)
+{
+    emit forcedSessionClose(config);
+}
+
+void QNetworkSessionPrivateImpl::syncStateWithInterface()
+{
+    connect(sessionManager(), SIGNAL(forcedSessionClose(QNetworkConfiguration)),
+            this, SLOT(forcedSessionClose(QNetworkConfiguration)));
+
+    opened = false;
+    isOpen = false;
+    state = QNetworkSession::Invalid;
+    lastError = QNetworkSession::UnknownSessionError;
+
+    qRegisterMetaType<QBearerEngineImpl::ConnectionError>
+        ("QBearerEngineImpl::ConnectionError");
+
+    switch (publicConfig.type()) {
+    case QNetworkConfiguration::InternetAccessPoint:
+        activeConfig = publicConfig;
+        engine = getEngineFromId(activeConfig.identifier());
+        if (engine) {
+            qRegisterMetaType<QNetworkConfigurationPrivatePointer>("QNetworkConfigurationPrivatePointer");
+            connect(engine, SIGNAL(configurationChanged(QNetworkConfigurationPrivatePointer)),
+                    this, SLOT(configurationChanged(QNetworkConfigurationPrivatePointer)),
+                    Qt::QueuedConnection);
+            connect(engine, SIGNAL(connectionError(QString,QBearerEngineImpl::ConnectionError)),
+                    this, SLOT(connectionError(QString,QBearerEngineImpl::ConnectionError)),
+                    Qt::QueuedConnection);
+        }
+        break;
+    case QNetworkConfiguration::ServiceNetwork:
+        serviceConfig = publicConfig;
+        // Defer setting engine and signals until open().
+        // fall through
+    case QNetworkConfiguration::UserChoice:
+        // Defer setting serviceConfig and activeConfig until open().
+        // fall through
+    default:
+        engine = 0;
+    }
+
+    networkConfigurationsChanged();
+}
+
+void QNetworkSessionPrivateImpl::open()
+{
+    if (serviceConfig.isValid()) {
+        lastError = QNetworkSession::OperationNotSupportedError;
+        emit QNetworkSessionPrivate::error(lastError);
+    } else if (!isOpen) {
+        if ((activeConfig.state() & QNetworkConfiguration::Discovered) !=
+            QNetworkConfiguration::Discovered) {
+            lastError =QNetworkSession::InvalidConfigurationError;
+            state = QNetworkSession::Invalid;
+            emit stateChanged(state);
+            emit QNetworkSessionPrivate::error(lastError);
+            return;
+        }
+        opened = true;
+
+        if ((activeConfig.state() & QNetworkConfiguration::Active) != QNetworkConfiguration::Active &&
+            (activeConfig.state() & QNetworkConfiguration::Discovered) == QNetworkConfiguration::Discovered) {
+            state = QNetworkSession::Connecting;
+            emit stateChanged(state);
+
+            engine->connectToId(activeConfig.identifier());
+        }
+
+        isOpen = (activeConfig.state() & QNetworkConfiguration::Active) == QNetworkConfiguration::Active;
+        if (isOpen)
+            emit quitPendingWaitsForOpened();
+    }
+}
+
+void QNetworkSessionPrivateImpl::close()
+{
+    if (serviceConfig.isValid()) {
+        lastError = QNetworkSession::OperationNotSupportedError;
+        emit QNetworkSessionPrivate::error(lastError);
+    } else if (isOpen) {
+        opened = false;
+        isOpen = false;
+        emit closed();
+    }
+}
+
+void QNetworkSessionPrivateImpl::stop()
+{
+    if (serviceConfig.isValid()) {
+        lastError = QNetworkSession::OperationNotSupportedError;
+        emit QNetworkSessionPrivate::error(lastError);
+    } else {
+        if ((activeConfig.state() & QNetworkConfiguration::Active) == QNetworkConfiguration::Active) {
+            state = QNetworkSession::Closing;
+            emit stateChanged(state);
+
+            engine->disconnectFromId(activeConfig.identifier());
+
+            sessionManager()->forceSessionClose(activeConfig);
+        }
+
+        opened = false;
+        isOpen = false;
+        emit closed();
+    }
+}
+
+void QNetworkSessionPrivateImpl::migrate()
+{
+}
+
+void QNetworkSessionPrivateImpl::accept()
+{
+}
+
+void QNetworkSessionPrivateImpl::ignore()
+{
+}
+
+void QNetworkSessionPrivateImpl::reject()
+{
+}
+
+#ifndef QT_NO_NETWORKINTERFACE
+QNetworkInterface QNetworkSessionPrivateImpl::currentInterface() const
+{
+    if (!publicConfig.isValid() || !engine || state != QNetworkSession::Connected)
+        return QNetworkInterface();
+
+    QString interface = engine->getInterfaceFromId(activeConfig.identifier());
+
+    if (interface.isEmpty())
+        return QNetworkInterface();
+    return QNetworkInterface::interfaceFromName(interface);
+}
+#endif
+
+QVariant QNetworkSessionPrivateImpl::sessionProperty(const QString &key) const
+{
+    if (key == QLatin1String("AutoCloseSessionTimeout")) {
+        if (engine && engine->requiresPolling() &&
+            !(engine->capabilities() & QNetworkConfigurationManager::CanStartAndStopInterfaces)) {
+            if (sessionTimeout >= 0)
+                return sessionTimeout * 10000;
+            else
+                return -1;
+        }
+    }
+
+    return QVariant();
+}
+
+void QNetworkSessionPrivateImpl::setSessionProperty(const QString &key, const QVariant &value)
+{
+    if (key == QLatin1String("AutoCloseSessionTimeout")) {
+        if (engine && engine->requiresPolling() &&
+            !(engine->capabilities() & QNetworkConfigurationManager::CanStartAndStopInterfaces)) {
+            int timeout = value.toInt();
+            if (timeout >= 0) {
+                connect(engine, SIGNAL(updateCompleted()),
+                        this, SLOT(decrementTimeout()), Qt::UniqueConnection);
+                sessionTimeout = timeout / 10000;   // convert to poll intervals
+            } else {
+                disconnect(engine, SIGNAL(updateCompleted()), this, SLOT(decrementTimeout()));
+                sessionTimeout = -1;
+            }
+        }
+    }
+}
+
+QString QNetworkSessionPrivateImpl::errorString() const
+{
+    switch (lastError) {
+    case QNetworkSession::UnknownSessionError:
+        return tr("Unknown session error.");
+    case QNetworkSession::SessionAbortedError:
+        return tr("The session was aborted by the user or system.");
+    case QNetworkSession::OperationNotSupportedError:
+        return tr("The requested operation is not supported by the system.");
+    case QNetworkSession::InvalidConfigurationError:
+        return tr("The specified configuration cannot be used.");
+    case QNetworkSession::RoamingError:
+        return tr("Roaming was aborted or is not possible.");
+
+    }
+
+    return QString();
+}
+
+QNetworkSession::SessionError QNetworkSessionPrivateImpl::error() const
+{
+    return lastError;
+}
+
+quint64 QNetworkSessionPrivateImpl::bytesWritten() const
+{
+    if (engine && state == QNetworkSession::Connected)
+        return engine->bytesWritten(activeConfig.identifier());
+    else
+        return Q_UINT64_C(0);
+}
+
+quint64 QNetworkSessionPrivateImpl::bytesReceived() const
+{
+    if (engine && state == QNetworkSession::Connected)
+        return engine->bytesReceived(activeConfig.identifier());
+    else
+        return Q_UINT64_C(0);
+}
+
+quint64 QNetworkSessionPrivateImpl::activeTime() const
+{
+    if (state == QNetworkSession::Connected && startTime != Q_UINT64_C(0))
+        return QDateTime::currentDateTime().toTime_t() - startTime;
+    else
+        return Q_UINT64_C(0);
+}
+
+void QNetworkSessionPrivateImpl::updateStateFromServiceNetwork()
+{
+    QNetworkSession::State oldState = state;
+
+    foreach (const QNetworkConfiguration &config, serviceConfig.children()) {
+        if ((config.state() & QNetworkConfiguration::Active) != QNetworkConfiguration::Active)
+            continue;
+
+        if (activeConfig != config) {
+            if (engine) {
+                disconnect(engine,
+                           SIGNAL(connectionError(QString,QBearerEngineImpl::ConnectionError)),
+                           this,
+                           SLOT(connectionError(QString,QBearerEngineImpl::ConnectionError)));
+            }
+
+            activeConfig = config;
+            engine = getEngineFromId(activeConfig.identifier());
+            if (engine) {
+                connect(engine,
+                        SIGNAL(connectionError(QString,QBearerEngineImpl::ConnectionError)),
+                        this, SLOT(connectionError(QString,QBearerEngineImpl::ConnectionError)),
+                        Qt::QueuedConnection);
+            }
+            emit newConfigurationActivated();
+        }
+
+        state = QNetworkSession::Connected;
+        if (state != oldState)
+            emit stateChanged(state);
+
+        return;
+    }
+
+    if (serviceConfig.children().isEmpty())
+        state = QNetworkSession::NotAvailable;
+    else
+        state = QNetworkSession::Disconnected;
+
+    if (state != oldState)
+        emit stateChanged(state);
+}
+
+void QNetworkSessionPrivateImpl::updateStateFromActiveConfig()
+{
+    if (!engine)
+        return;
+
+    QNetworkSession::State oldState = state;
+
+    state = engine->sessionStateForId(activeConfig.identifier());
+
+    bool oldActive = isOpen;
+    isOpen = (state == QNetworkSession::Connected) ? opened : false;
+
+    if (!oldActive && isOpen)
+        emit quitPendingWaitsForOpened();
+    if (oldActive && !isOpen)
+        emit closed();
+
+    if (oldState != state)
+        emit stateChanged(state);
+}
+
+void QNetworkSessionPrivateImpl::networkConfigurationsChanged()
+{
+    if (serviceConfig.isValid())
+        updateStateFromServiceNetwork();
+    else
+        updateStateFromActiveConfig();
+
+    startTime = engine->startTime(activeConfig.identifier());
+}
+
+void QNetworkSessionPrivateImpl::configurationChanged(QNetworkConfigurationPrivatePointer config)
+{
+    if (serviceConfig.isValid() &&
+        (config->id == serviceConfig.identifier() || config->id == activeConfig.identifier())) {
+        updateStateFromServiceNetwork();
+    } else if (config->id == activeConfig.identifier()) {
+        updateStateFromActiveConfig();
+    }
+}
+
+void QNetworkSessionPrivateImpl::forcedSessionClose(const QNetworkConfiguration &config)
+{
+    if (activeConfig == config) {
+        opened = false;
+        isOpen = false;
+
+        emit closed();
+
+        lastError = QNetworkSession::SessionAbortedError;
+        emit QNetworkSessionPrivate::error(lastError);
+    }
+}
+
+void QNetworkSessionPrivateImpl::connectionError(const QString &id,
+                                                 QBearerEngineImpl::ConnectionError error)
+{
+    if (activeConfig.identifier() == id) {
+        networkConfigurationsChanged();
+        switch (error) {
+        case QBearerEngineImpl::OperationNotSupported:
+            lastError = QNetworkSession::OperationNotSupportedError;
+            opened = false;
+            break;
+        case QBearerEngineImpl::InterfaceLookupError:
+        case QBearerEngineImpl::ConnectError:
+        case QBearerEngineImpl::DisconnectionError:
+        default:
+            lastError = QNetworkSession::UnknownSessionError;
+        }
+
+        emit QNetworkSessionPrivate::error(lastError);
+    }
+}
+
+void QNetworkSessionPrivateImpl::decrementTimeout()
+{
+    if (--sessionTimeout <= 0) {
+        disconnect(engine, SIGNAL(updateCompleted()), this, SLOT(decrementTimeout()));
+        sessionTimeout = -1;
+        close();
+    }
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_BEARERMANAGEMENT
+