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/* background-monitor.c
*
* Copyright 2022 Georges Basile Stavracas Neto <georges.stavracas@gmail.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/>.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "background-monitor.h"
#define BACKGROUND_MONITOR_BUS_NAME "org.freedesktop.background.Monitor"
#define BACKGROUND_MONITOR_OBJECT_PATH "/org/freedesktop/background/monitor"
struct _BackgroundMonitor
{
XdpDbusBackgroundMonitorSkeleton parent_instance;
GDBusConnection *connection;
};
static void g_initable_iface_init (GInitableIface *iface);
G_DEFINE_TYPE_WITH_CODE (BackgroundMonitor,
background_monitor,
XDP_DBUS_BACKGROUND_TYPE_MONITOR_SKELETON,
G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE, g_initable_iface_init))
static gboolean
request_freedesktop_background_name (BackgroundMonitor *self,
GCancellable *cancellable,
GError **error)
{
g_autoptr(GVariant) reply = NULL;
GBusNameOwnerFlags flags;
guint32 result;
flags = G_BUS_NAME_OWNER_FLAGS_REPLACE;
#if GLIB_CHECK_VERSION(2,54,0)
flags |= G_BUS_NAME_OWNER_FLAGS_DO_NOT_QUEUE;
#endif
reply = g_dbus_connection_call_sync (self->connection,
"org.freedesktop.DBus",
"/org/freedesktop/DBus",
"org.freedesktop.DBus",
"RequestName",
g_variant_new ("(su)", BACKGROUND_MONITOR_BUS_NAME, flags),
G_VARIANT_TYPE ("(u)"),
0, -1,
cancellable,
error);
if (!reply)
return FALSE;
g_variant_get (reply, "(u)", &result);
if (result != 1)
{
g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
"Failed to own background monitor D-Bus name");
return FALSE;
}
return TRUE;
}
static gboolean
background_monitor_initable_init (GInitable *initable,
GCancellable *cancellable,
GError **error)
{
BackgroundMonitor *self = BACKGROUND_MONITOR (initable);
g_autofree char *address = NULL;
address = g_dbus_address_get_for_bus_sync (G_BUS_TYPE_SESSION, cancellable, error);
if (!address)
return FALSE;
self->connection = g_initable_new (G_TYPE_DBUS_CONNECTION,
cancellable, error,
"address", address,
"flags", G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT |
#if GLIB_CHECK_VERSION(2,74,0)
G_DBUS_CONNECTION_FLAGS_CROSS_NAMESPACE |
#endif
G_DBUS_CONNECTION_FLAGS_MESSAGE_BUS_CONNECTION,
"exit-on-close", TRUE,
NULL);
if (!self->connection)
return FALSE;
g_dbus_interface_skeleton_set_flags (G_DBUS_INTERFACE_SKELETON (initable),
G_DBUS_INTERFACE_SKELETON_FLAGS_HANDLE_METHOD_INVOCATIONS_IN_THREAD);
/* TODO: dos it need to listen to 'g-authorize-method'? */
if (!g_dbus_interface_skeleton_export (G_DBUS_INTERFACE_SKELETON (initable),
self->connection,
BACKGROUND_MONITOR_OBJECT_PATH,
error))
{
return FALSE;
}
if (!request_freedesktop_background_name (self, cancellable, error))
return FALSE;
return TRUE;
}
static void
g_initable_iface_init (GInitableIface *iface)
{
iface->init = background_monitor_initable_init;
}
static void
background_monitor_finalize (GObject *object)
{
BackgroundMonitor *self = (BackgroundMonitor *)object;
if (self->connection)
g_dbus_connection_flush_sync (self->connection, NULL, NULL);
g_clear_object (&self->connection);
G_OBJECT_CLASS (background_monitor_parent_class)->finalize (object);
}
static void
background_monitor_class_init (BackgroundMonitorClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = background_monitor_finalize;
}
static void
background_monitor_init (BackgroundMonitor *self)
{
xdp_dbus_background_monitor_set_version (XDP_DBUS_BACKGROUND_MONITOR (self), 1);
}
BackgroundMonitor *
background_monitor_new (GCancellable *cancellable,
GError **error)
{
return g_initable_new (BACKGROUND_TYPE_MONITOR,
cancellable,
error,
NULL);
}
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