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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
*
* Copyright (C) 2007 William Jon McCann <mccann@jhu.edu>
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include <stdlib.h>
#include <locale.h>
#include <unistd.h>
#include <signal.h>
#include <string.h>
#include <glib.h>
#include <glib/gi18n.h>
#include <gdk/gdkx.h>
#include <gtk/gtk.h>
#include "gdm-log.h"
#include "gdm-common.h"
#include "gdm-signal-handler.h"
#include "gdm-settings-client.h"
#include "gdm-settings-keys.h"
#include "gdm-profile.h"
#include "gdm-greeter-session.h"
#include "gsm-client-glue.h"
#include "gsm-manager-glue.h"
#define SM_DBUS_NAME "org.gnome.SessionManager"
#define SM_DBUS_PATH "/org/gnome/SessionManager"
#define SM_DBUS_INTERFACE "org.gnome.SessionManager"
#define SM_CLIENT_DBUS_INTERFACE "org.gnome.SessionManager.ClientPrivate"
static GDBusConnection *bus_connection = NULL;
static GsmManager *sm_proxy = NULL;
static char *client_id = NULL;
static GsmClientPrivate *client_proxy = NULL;
static gboolean
is_debug_set (void)
{
gboolean debug = FALSE;
/* enable debugging for unstable builds */
if (gdm_is_version_unstable ()) {
return TRUE;
}
gdm_settings_client_get_boolean (GDM_KEY_DEBUG, &debug);
return debug;
}
static gboolean
signal_cb (int signo,
gpointer data)
{
int ret;
g_debug ("Got callback for signal %d", signo);
ret = TRUE;
switch (signo) {
case SIGFPE:
case SIGPIPE:
/* let the fatal signals interrupt us */
g_debug ("Caught signal %d, shutting down abnormally.", signo);
ret = FALSE;
break;
case SIGINT:
case SIGTERM:
/* let the fatal signals interrupt us */
g_debug ("Caught signal %d, shutting down normally.", signo);
ret = FALSE;
break;
case SIGHUP:
g_debug ("Got HUP signal");
/* FIXME:
* Reread config stuff like system config files, VPN service files, etc
*/
ret = TRUE;
break;
case SIGUSR1:
g_debug ("Got USR1 signal");
/* FIXME:
* Play with log levels or something
*/
ret = TRUE;
gdm_log_toggle_debug ();
break;
default:
g_debug ("Caught unhandled signal %d", signo);
ret = TRUE;
break;
}
return ret;
}
static gboolean
session_manager_connect (void)
{
GError *error;
error = NULL;
if (bus_connection == NULL) {
bus_connection = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
if (bus_connection == NULL) {
g_message ("Failed to connect to the session bus: %s",
error->message);
g_error_free (error);
exit (1);
}
g_signal_connect (G_OBJECT (bus_connection),
"closed",
G_CALLBACK (gtk_main_quit),
NULL);
}
sm_proxy = gsm_manager_proxy_new_sync (bus_connection,
G_DBUS_PROXY_FLAGS_NONE,
SM_DBUS_NAME,
SM_DBUS_PATH,
NULL,
&error);
if (sm_proxy == NULL) {
g_message ("Failed to connect to the session manager: %s",
error->message);
g_error_free (error);
}
return (sm_proxy != NULL);
}
static void
stop_cb (GsmClientPrivate *client_private,
gpointer data)
{
gtk_main_quit ();
}
static gboolean
end_session_response (gboolean is_okay, const gchar *reason)
{
gboolean ret;
GError *error = NULL;
if (reason == NULL) {
reason = "";
}
ret = gsm_client_private_call_end_session_response_sync (client_proxy, is_okay, reason, NULL, &error);
if (!ret) {
g_warning ("Failed to send session response %s", error->message);
g_error_free (error);
}
return ret;
}
static void
query_end_session_cb (GsmClientPrivate *client_private,
guint flags,
gpointer data)
{
end_session_response (TRUE, NULL);
}
static void
end_session_cb (guint flags, gpointer data)
{
end_session_response (TRUE, NULL);
gtk_main_quit ();
}
static gboolean
register_client (void)
{
GError *error;
gboolean res;
const char *startup_id;
const char *app_id;
startup_id = g_getenv ("DESKTOP_AUTOSTART_ID");
app_id = "gdm-simple-greeter.desktop";
error = NULL;
res = gsm_manager_call_register_client_sync (sm_proxy, app_id, startup_id, &client_id, NULL, &error);
if (! res) {
g_warning ("Failed to register client: %s", error->message);
g_error_free (error);
return FALSE;
}
g_debug ("Client registered with session manager: %s", client_id);
client_proxy = gsm_client_private_proxy_new_sync (bus_connection,
G_DBUS_PROXY_FLAGS_NONE,
SM_DBUS_NAME,
client_id,
NULL,
&error);
if (client_proxy == NULL) {
g_warning ("Failed to track client: %s", error->message);
g_error_free (error);
return FALSE;
}
g_signal_connect (client_proxy,
"stop",
G_CALLBACK (stop_cb),
NULL);
g_signal_connect (client_proxy,
"query-end-session",
G_CALLBACK (query_end_session_cb),
NULL);
g_signal_connect (client_proxy,
"end-session",
G_CALLBACK (end_session_cb),
NULL);
g_unsetenv ("DESKTOP_AUTOSTART_ID");
return TRUE;
}
int
main (int argc, char *argv[])
{
GError *error;
GdmGreeterSession *session;
gboolean res;
GdmSignalHandler *signal_handler;
bindtextdomain (GETTEXT_PACKAGE, GNOMELOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
textdomain (GETTEXT_PACKAGE);
setlocale (LC_ALL, "");
gdm_profile_start ("Initializing settings client");
if (! gdm_settings_client_init (DATADIR "/gdm/gdm.schemas", "/")) {
g_critical ("Unable to initialize settings client");
exit (1);
}
gdm_profile_end ("Initializing settings client");
g_debug ("Greeter session pid=%d display=%s xauthority=%s",
(int)getpid (),
g_getenv ("DISPLAY"),
g_getenv ("XAUTHORITY"));
/* FIXME: For testing to make it easier to attach gdb */
/*sleep (15);*/
gdm_log_init ();
gdm_log_set_debug (is_debug_set ());
gtk_init (&argc, &argv);
signal_handler = gdm_signal_handler_new ();
gdm_signal_handler_add_fatal (signal_handler);
gdm_signal_handler_add (signal_handler, SIGTERM, signal_cb, NULL);
gdm_signal_handler_add (signal_handler, SIGINT, signal_cb, NULL);
gdm_signal_handler_add (signal_handler, SIGFPE, signal_cb, NULL);
gdm_signal_handler_add (signal_handler, SIGHUP, signal_cb, NULL);
gdm_signal_handler_add (signal_handler, SIGUSR1, signal_cb, NULL);
gdm_profile_start ("Creating new greeter session");
session = gdm_greeter_session_new ();
if (session == NULL) {
g_critical ("Unable to create greeter session");
exit (1);
}
gdm_profile_end ("Creating new greeter session");
error = NULL;
res = gdm_greeter_session_start (session, &error);
if (! res) {
if (error != NULL) {
g_warning ("Unable to start greeter session: %s", error->message);
g_error_free (error);
}
exit (1);
}
res = session_manager_connect ();
if (! res) {
g_warning ("Unable to connect to session manager");
exit (1);
}
res = register_client ();
if (! res) {
g_warning ("Unable to register client with session manager");
}
gtk_main ();
if (session != NULL) {
g_object_unref (session);
}
return 0;
}
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