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/*
SPDX-FileCopyrightText: 2014 Martin Gräßlin <mgraesslin@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "logind.h"
#include <KLocalizedString>
#include <QCoreApplication>
#include <QDBusConnectionInterface>
#include <QDBusServiceWatcher>
#include <QStandardPaths>
#include <kscreenlocker_logging.h>
const static QString s_login1Service = QStringLiteral("org.freedesktop.login1");
const static QString s_login1Path = QStringLiteral("/org/freedesktop/login1");
const static QString s_login1ManagerInterface = QStringLiteral("org.freedesktop.login1.Manager");
const static QString s_login1SessionInterface = QStringLiteral("org.freedesktop.login1.Session");
const static QString s_consolekitService = QStringLiteral("org.freedesktop.ConsoleKit");
const static QString s_consolekitPath = QStringLiteral("/org/freedesktop/ConsoleKit/Manager");
const static QString s_consolekitManagerInterface = QStringLiteral("org.freedesktop.ConsoleKit.Manager");
const static QString s_consolekitSessionInterface = QStringLiteral("org.freedesktop.ConsoleKit.Session");
const static QString s_propertyInterface = QStringLiteral("org.freedesktop.DBus.Properties");
LogindIntegration::LogindIntegration(const QDBusConnection &connection, QObject *parent)
: QObject(parent)
, m_bus(connection)
, m_logindServiceWatcher(
new QDBusServiceWatcher(s_login1Service, m_bus, QDBusServiceWatcher::WatchForUnregistration | QDBusServiceWatcher::WatchForRegistration, this))
, m_connected(false)
, m_inhibitFileDescriptor()
, m_service(nullptr)
, m_path(nullptr)
, m_managerInterface(nullptr)
, m_sessionInterface(nullptr)
{
// if we are inside Kwin's unit tests don't query or manipulate logind
// avoid connecting but keep all stubs in place
if (QStandardPaths::isTestModeEnabled()) {
return;
}
connect(m_logindServiceWatcher, &QDBusServiceWatcher::serviceRegistered, this, &LogindIntegration::logindServiceRegistered);
connect(m_logindServiceWatcher, &QDBusServiceWatcher::serviceUnregistered, this, [this]() {
m_connected = false;
m_sessionPath = QString();
Q_EMIT connectedChanged();
});
// check whether the logind service is registered
QDBusMessage message = QDBusMessage::createMethodCall(QStringLiteral("org.freedesktop.DBus"),
QStringLiteral("/"),
QStringLiteral("org.freedesktop.DBus"),
QStringLiteral("ListNames"));
QDBusPendingReply<QStringList> async = m_bus.asyncCall(message);
QDBusPendingCallWatcher *callWatcher = new QDBusPendingCallWatcher(async, this);
connect(callWatcher, &QDBusPendingCallWatcher::finished, this, [this](QDBusPendingCallWatcher *self) {
QDBusPendingReply<QStringList> reply = *self;
self->deleteLater();
if (!reply.isValid()) {
return;
}
if (reply.value().contains(s_login1Service)) {
logindServiceRegistered();
// Don't register ck if we have logind
return;
}
if (reply.value().contains(s_consolekitService)) {
consolekitServiceRegistered();
}
});
}
LogindIntegration::LogindIntegration(QObject *parent)
: LogindIntegration(QDBusConnection::systemBus(), parent)
{
}
LogindIntegration::~LogindIntegration() = default;
void LogindIntegration::logindServiceRegistered()
{
// get the current session
QDBusMessage message = QDBusMessage::createMethodCall(s_login1Service, s_login1Path, s_login1ManagerInterface, QStringLiteral("GetSession"));
message.setArguments({QStringLiteral("auto")});
QDBusPendingReply<QDBusObjectPath> session = m_bus.asyncCall(message);
QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(session, this);
m_service = &s_login1Service;
m_path = &s_login1Path;
m_managerInterface = &s_login1ManagerInterface;
m_sessionInterface = &s_login1SessionInterface;
commonServiceRegistered(watcher);
}
void LogindIntegration::consolekitServiceRegistered()
{
// Don't try to register with ck if we have logind
if (m_connected) {
return;
}
// get the current session
QDBusMessage message =
QDBusMessage::createMethodCall(s_consolekitService, s_consolekitPath, s_consolekitManagerInterface, QStringLiteral("GetCurrentSession"));
QDBusPendingReply<QDBusObjectPath> session = m_bus.asyncCall(message);
QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(session, this);
m_service = &s_consolekitService;
m_path = &s_consolekitPath;
m_managerInterface = &s_consolekitManagerInterface;
m_sessionInterface = &s_consolekitSessionInterface;
commonServiceRegistered(watcher);
}
void LogindIntegration::commonServiceRegistered(QDBusPendingCallWatcher *watcher)
{
connect(watcher, &QDBusPendingCallWatcher::finished, this, [this](QDBusPendingCallWatcher *self) {
QDBusPendingReply<QDBusObjectPath> reply = *self;
self->deleteLater();
if (m_connected) {
return;
}
if (!reply.isValid()) {
qCDebug(KSCREENLOCKER) << "The session is not registered: " << reply.error().message();
return;
}
m_sessionPath = reply.value().path();
qCDebug(KSCREENLOCKER) << "Session path:" << m_sessionPath;
// connections need to be done this way as the object exposes both method and signal
// with name "Lock"/"Unlock". Qt is not able to automatically handle this.
m_bus.connect(*m_service, m_sessionPath, *m_sessionInterface, QStringLiteral("Lock"), this, SIGNAL(requestLock()));
m_bus.connect(*m_service, m_sessionPath, *m_sessionInterface, QStringLiteral("Unlock"), this, SIGNAL(requestUnlock()));
m_connected = true;
Q_EMIT connectedChanged();
});
// connect to manager object's signals we need
m_bus.connect(*m_service, *m_path, *m_managerInterface, QStringLiteral("PrepareForSleep"), this, SIGNAL(prepareForSleep(bool)));
}
void LogindIntegration::inhibit()
{
if (m_inhibitFileDescriptor.isValid()) {
return;
}
if (!m_connected) {
return;
}
QDBusMessage message = QDBusMessage::createMethodCall(*m_service, *m_path, *m_managerInterface, QStringLiteral("Inhibit"));
message.setArguments(QVariantList(
{QStringLiteral("sleep"), i18n("Screen Locker"), i18n("Ensuring that the screen gets locked before going to sleep"), QStringLiteral("delay")}));
QDBusPendingReply<QDBusUnixFileDescriptor> reply = m_bus.asyncCall(message);
QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(reply, this);
connect(watcher, &QDBusPendingCallWatcher::finished, this, [this](QDBusPendingCallWatcher *self) {
QDBusPendingReply<QDBusUnixFileDescriptor> reply = *self;
self->deleteLater();
if (!reply.isValid()) {
return;
}
reply.value().swap(m_inhibitFileDescriptor);
Q_EMIT inhibited();
});
}
void LogindIntegration::uninhibit()
{
if (!m_inhibitFileDescriptor.isValid()) {
return;
}
m_inhibitFileDescriptor = QDBusUnixFileDescriptor();
}
bool LogindIntegration::isInhibited() const
{
return m_inhibitFileDescriptor.isValid();
}
void LogindIntegration::setLocked(bool locked)
{
if (!m_connected || m_sessionPath.isEmpty()) {
return;
}
QDBusMessage message = QDBusMessage::createMethodCall(*m_service, m_sessionPath, *m_sessionInterface, QStringLiteral("SetLockedHint"));
message.setArguments({locked});
m_bus.call(message, QDBus::NoBlock);
}
bool LogindIntegration::isLocked() const
{
if (!m_connected || m_sessionPath.isEmpty()) {
return false;
}
QDBusMessage message = QDBusMessage::createMethodCall(*m_service, m_sessionPath, s_propertyInterface, QStringLiteral("Get"));
message.setArguments({*m_sessionInterface, QStringLiteral("LockedHint")});
QDBusReply<QDBusVariant> reply = m_bus.call(message);
if (reply.isValid()) {
return reply.value().variant().toBool();
}
qCDebug(KSCREENLOCKER()) << reply.error();
return false;
}
#include "moc_logind.cpp"
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