kwin/service_utils.h

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2020, Méven Car <meven.car@enika.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#ifndef SERVICE_UTILS_H
#define SERVICE_UTILS_H
// cmake stuff
#include <config-kwin.h>
// kwin
#include <kwinglobals.h>
// Qt
#include <QFileInfo>
#include <QLoggingCategory>
//KF
#include <KApplicationTrader>
namespace KWin
{
const static QString s_waylandInterfaceName = QStringLiteral("X-KDE-Wayland-Interfaces");
const static QString s_dbusRestrictedInterfaceName = QStringLiteral("X-KDE-DBUS-Restricted-Interfaces");
static QStringList fetchProcessServiceField(const QString &executablePath, const QString &fieldName)
{
// needed to be able to use the logging category in a header static function
static QLoggingCategory KWIN_UTILS ("KWIN_UTILS");
const auto servicesFound = KApplicationTrader::query([&executablePath] (const KService::Ptr &service) {
if (service->exec().isEmpty() || service->exec() != executablePath)
return false;
return true;
});
if (servicesFound.isEmpty()) {
qCDebug(KWIN_UTILS) << "Could not find the desktop file for" << executablePath;
return {};
}
const auto fieldValues = servicesFound.first()->property(fieldName).toStringList();
if (KWIN_UTILS().isDebugEnabled()) {
qCDebug(KWIN_UTILS) << "Interfaces found for" << executablePath << fieldName << ":" << fieldValues;
}
return fieldValues;
}
static QStringList fetchRequestedInterfaces(const QString &executablePath)
{
return fetchProcessServiceField(executablePath, s_waylandInterfaceName);
}
static QStringList fetchRestrictedDBusInterfacesFromPid(const uint pid)
{
const auto executablePath = QFileInfo(QStringLiteral("/proc/%1/exe").arg(pid)).symLinkTarget();
return fetchProcessServiceField(executablePath, s_dbusRestrictedInterfaceName);
}
}// namespace
#endif // SERVICE_UTILS_H