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// Copyright (C) 2021 Ilya Fedin <fedin-ilja2010@ya.ru>
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant reason:default
#include <QtNetwork/private/qnetworkinformation_p.h>
#include <QtCore/qglobal.h>
#include <QtCore/private/qobject_p.h>
#include <gio/gio.h>
QT_BEGIN_NAMESPACE
using namespace Qt::StringLiterals;
Q_DECLARE_LOGGING_CATEGORY(lcNetInfoGlib)
Q_LOGGING_CATEGORY(lcNetInfoGlib, "qt.network.info.glib");
namespace {
QNetworkInformation::Reachability reachabilityFromGNetworkConnectivity(GNetworkConnectivity connectivity)
{
switch (connectivity) {
case G_NETWORK_CONNECTIVITY_LOCAL:
return QNetworkInformation::Reachability::Disconnected;
case G_NETWORK_CONNECTIVITY_LIMITED:
case G_NETWORK_CONNECTIVITY_PORTAL:
return QNetworkInformation::Reachability::Site;
case G_NETWORK_CONNECTIVITY_FULL:
return QNetworkInformation::Reachability::Online;
}
return QNetworkInformation::Reachability::Unknown;
}
}
static const QString &backendName()
{
static auto name = u"glib"_s;
return name;
}
class QGlibNetworkInformationBackend : public QNetworkInformationBackend
{
Q_OBJECT
public:
QGlibNetworkInformationBackend();
~QGlibNetworkInformationBackend();
QString name() const override { return backendName(); }
QNetworkInformation::Features featuresSupported() const override
{
if (!isValid())
return {};
return featuresSupportedStatic();
}
static QNetworkInformation::Features featuresSupportedStatic()
{
using Feature = QNetworkInformation::Feature;
return QNetworkInformation::Features(Feature::Reachability | Feature::CaptivePortal
| Feature::Metered);
}
bool isValid() const;
private:
Q_DISABLE_COPY_MOVE(QGlibNetworkInformationBackend)
static void updateConnectivity(QGlibNetworkInformationBackend *backend);
static void updateMetered(QGlibNetworkInformationBackend *backend);
GNetworkMonitor *networkMonitor = nullptr;
gulong connectivityHandlerId = 0;
gulong networkHandlerId = 0;
gulong meteredHandlerId = 0;
};
class QGlibNetworkInformationBackendFactory : public QNetworkInformationBackendFactory
{
Q_OBJECT
Q_PLUGIN_METADATA(IID QNetworkInformationBackendFactory_iid)
Q_INTERFACES(QNetworkInformationBackendFactory)
public:
QGlibNetworkInformationBackendFactory() = default;
~QGlibNetworkInformationBackendFactory() = default;
QString name() const override { return backendName(); }
QNetworkInformation::Features featuresSupported() const override
{
return QGlibNetworkInformationBackend::featuresSupportedStatic();
}
QNetworkInformationBackend *create(QNetworkInformation::Features requiredFeatures) const override
{
if ((requiredFeatures & featuresSupported()) != requiredFeatures)
return nullptr;
auto backend = new QGlibNetworkInformationBackend();
if (!backend->isValid())
delete std::exchange(backend, nullptr);
return backend;
}
private:
Q_DISABLE_COPY_MOVE(QGlibNetworkInformationBackendFactory)
};
QGlibNetworkInformationBackend::QGlibNetworkInformationBackend()
: networkMonitor(g_network_monitor_get_default())
{
updateConnectivity(this);
updateMetered(this);
connectivityHandlerId = g_signal_connect_swapped(networkMonitor, "notify::connectivity",
G_CALLBACK(updateConnectivity), this);
// needed until GLib 2.86 for netlink support
networkHandlerId = g_signal_connect_swapped(networkMonitor, "notify::network-available",
G_CALLBACK(updateConnectivity), this);
meteredHandlerId = g_signal_connect_swapped(networkMonitor, "notify::network-metered",
G_CALLBACK(updateMetered), this);
}
QGlibNetworkInformationBackend::~QGlibNetworkInformationBackend()
{
g_signal_handler_disconnect(networkMonitor, meteredHandlerId);
g_signal_handler_disconnect(networkMonitor, networkHandlerId);
g_signal_handler_disconnect(networkMonitor, connectivityHandlerId);
}
bool QGlibNetworkInformationBackend::isValid() const
{
return QLatin1StringView(G_OBJECT_TYPE_NAME(networkMonitor)) != "GNetworkMonitorBase"_L1;
}
void QGlibNetworkInformationBackend::updateConnectivity(QGlibNetworkInformationBackend *backend)
{
const auto connectivityState = g_network_monitor_get_connectivity(backend->networkMonitor);
const bool behindPortal = (connectivityState == G_NETWORK_CONNECTIVITY_PORTAL);
backend->setReachability(reachabilityFromGNetworkConnectivity(connectivityState));
backend->setBehindCaptivePortal(behindPortal);
}
void QGlibNetworkInformationBackend::updateMetered(QGlibNetworkInformationBackend *backend)
{
backend->setMetered(g_network_monitor_get_network_metered(backend->networkMonitor));
}
QT_END_NAMESPACE
#include "qglibnetworkinformationbackend.moc"