2 * Copyright (C) 2010-2011 Robert Ancell.
3 * Author: Robert Ancell <robert.ancell@canonical.com>
5 * This program is free software: you can redistribute it and/or modify it under
6 * the terms of the GNU General Public License as published by the Free Software
7 * Foundation, either version 3 of the License, or (at your option) any later
8 * version. See http://www.gnu.org/copyleft/gpl.html the full text of the
17 #include "configuration.h"
18 #include "guest-account.h"
19 #include "greeter-session.h"
20 #include "session-config.h"
29 static guint signals[LAST_SIGNAL] = { 0 };
33 /* XDG name for this seat */
36 /* Configuration for this seat */
37 GHashTable *properties;
39 /* TRUE if this seat can run multiple sessions at once */
40 gboolean supports_multi_session;
42 /* TRUE if display server can be shared for sessions */
43 gboolean share_display_server;
45 /* The display servers on this seat */
46 GList *display_servers;
48 /* The sessions on this seat */
51 /* The last session set to active */
52 Session *active_session;
54 /* The session belonging to the active greeter user */
55 Session *next_session;
57 /* The session to set active when it starts */
58 Session *session_to_activate;
60 /* TRUE once we have started */
63 /* TRUE if stopping this seat (waiting for displays to stop) */
69 /* The greeter to be started to replace the current one */
70 GreeterSession *replacement_greeter;
73 static void seat_logger_iface_init (LoggerInterface *iface);
75 G_DEFINE_TYPE_WITH_CODE (Seat, seat, G_TYPE_OBJECT,
76 G_IMPLEMENT_INTERFACE (
77 LOGGER_TYPE, seat_logger_iface_init));
84 static GHashTable *seat_modules = NULL;
86 // FIXME: Make a get_display_server() that re-uses display servers if supported
87 static DisplayServer *create_display_server (Seat *seat, Session *session);
88 static GreeterSession *create_greeter_session (Seat *seat);
89 static void start_session (Seat *seat, Session *session);
92 seat_register_module (const gchar *name, GType type)
97 seat_modules = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
99 g_debug ("Registered seat module %s", name);
101 module = g_malloc0 (sizeof (SeatModule));
102 module->name = g_strdup (name);
104 g_hash_table_insert (seat_modules, g_strdup (name), module);
108 seat_new (const gchar *module_name, const gchar *name)
111 SeatModule *m = NULL;
113 g_return_val_if_fail (module_name != NULL, NULL);
116 m = g_hash_table_lookup (seat_modules, module_name);
120 seat = g_object_new (m->type, NULL);
121 seat->priv->name = g_strdup (name);
127 seat_set_property (Seat *seat, const gchar *name, const gchar *value)
129 g_return_if_fail (seat != NULL);
130 g_hash_table_insert (seat->priv->properties, g_strdup (name), g_strdup (value));
134 seat_get_string_property (Seat *seat, const gchar *name)
136 g_return_val_if_fail (seat != NULL, NULL);
137 return g_hash_table_lookup (seat->priv->properties, name);
141 seat_get_string_list_property (Seat *seat, const gchar *name)
143 g_return_val_if_fail (seat != NULL, NULL);
144 return g_strsplit (g_hash_table_lookup (seat->priv->properties, name), ";", 0);
148 seat_get_boolean_property (Seat *seat, const gchar *name)
153 value = seat_get_string_property (seat, name);
157 /* Count the number of non-whitespace characters */
158 for (i = 0; value[i]; i++)
159 if (!g_ascii_isspace (value[i]))
162 return strncmp (value, "true", MAX (length, 4)) == 0;
166 seat_get_integer_property (Seat *seat, const gchar *name)
170 value = seat_get_string_property (seat, name);
171 return value ? atoi (value) : 0;
175 seat_get_name (Seat *seat)
177 return seat->priv->name;
181 seat_set_supports_multi_session (Seat *seat, gboolean supports_multi_session)
183 g_return_if_fail (seat != NULL);
184 seat->priv->supports_multi_session = supports_multi_session;
188 seat_set_share_display_server (Seat *seat, gboolean share_display_server)
190 g_return_if_fail (seat != NULL);
191 seat->priv->share_display_server = share_display_server;
195 seat_start (Seat *seat)
197 g_return_val_if_fail (seat != NULL, FALSE);
199 l_debug (seat, "Starting");
201 SEAT_GET_CLASS (seat)->setup (seat);
202 seat->priv->started = SEAT_GET_CLASS (seat)->start (seat);
204 return seat->priv->started;
208 seat_get_sessions (Seat *seat)
210 g_return_val_if_fail (seat != NULL, NULL);
211 return seat->priv->sessions;
215 set_greeter_idle (gpointer greeter)
217 greeter_idle (GREETER (greeter));
222 seat_set_active_session (Seat *seat, Session *session)
226 g_return_if_fail (seat != NULL);
228 SEAT_GET_CLASS (seat)->set_active_session (seat, session);
230 /* Stop any greeters */
231 for (link = seat->priv->sessions; link; link = link->next)
233 Session *s = link->data;
235 if (s == session || session_get_is_stopping (s))
238 if (IS_GREETER_SESSION (s))
240 Greeter *greeter = greeter_session_get_greeter (GREETER_SESSION (s));
241 if (greeter_get_resettable (greeter))
243 if (seat->priv->active_session == s)
245 l_debug (seat, "Idling greeter");
246 /* Do this in an idle callback, because we might very well
247 be in the middle of responding to a START_SESSION
248 request by a greeter. So they won't expect an IDLE
249 call during that. Plus, this isn't time-sensitive. */
250 g_idle_add (set_greeter_idle, greeter);
255 l_debug (seat, "Stopping greeter");
261 /* Lock previous sessions */
262 if (seat->priv->active_session && session != seat->priv->active_session && !IS_GREETER_SESSION (seat->priv->active_session))
263 session_lock (seat->priv->active_session);
265 session_activate (session);
266 g_clear_object (&seat->priv->active_session);
267 seat->priv->active_session = g_object_ref (session);
271 seat_get_active_session (Seat *seat)
273 g_return_val_if_fail (seat != NULL, NULL);
274 return SEAT_GET_CLASS (seat)->get_active_session (seat);
278 seat_get_next_session (Seat *seat)
280 g_return_val_if_fail (seat != NULL, NULL);
281 return seat->priv->next_session;
285 * Obtains the active session which lightdm expects to be active.
287 * This function is different from seat_get_active_session() in that the
288 * later (in the case of xlocal seats) dynamically finds the session that is
289 * really active (based on the active VT), whereas this function returns the
290 * session that lightdm activated last by itself, which may not be the actual
291 * active session (i.e. VT changes).
294 seat_get_expected_active_session (Seat *seat)
296 g_return_val_if_fail (seat != NULL, NULL);
297 return seat->priv->active_session;
301 * Sets the active session which lightdm expects to be active.
303 * This function is different from seat_set_active_session() in that the
304 * later performs an actual session activation, whereas this function just
305 * updates the active session after the session has been activated by some
306 * means external to lightdm (i.e. VT changes).
309 seat_set_externally_activated_session (Seat *seat, Session *session)
311 g_return_if_fail (seat != NULL);
312 g_clear_object (&seat->priv->active_session);
313 seat->priv->active_session = g_object_ref (session);
317 seat_find_session_by_login1_id (Seat *seat, const gchar *login1_session_id)
321 for (session_link = seat->priv->sessions; session_link; session_link = session_link->next)
323 Session *session = session_link->data;
324 if (g_strcmp0 (login1_session_id, session_get_login1_session_id (session)) == 0)
332 seat_get_can_switch (Seat *seat)
334 g_return_val_if_fail (seat != NULL, FALSE);
335 return seat_get_boolean_property (seat, "allow-user-switching") && seat->priv->supports_multi_session;
339 seat_get_allow_guest (Seat *seat)
341 g_return_val_if_fail (seat != NULL, FALSE);
342 return seat_get_boolean_property (seat, "allow-guest") && guest_account_is_installed ();
346 run_script (Seat *seat, DisplayServer *display_server, const gchar *script_name, User *user)
349 gboolean result = FALSE;
351 script = process_new (NULL, NULL);
353 process_set_command (script, script_name);
355 /* Set POSIX variables */
356 process_set_clear_environment (script, TRUE);
357 process_set_env (script, "SHELL", "/bin/sh");
359 /* Variables required for regression tests */
360 if (g_getenv ("LIGHTDM_TEST_ROOT"))
362 process_set_env (script, "LIGHTDM_TEST_ROOT", g_getenv ("LIGHTDM_TEST_ROOT"));
363 process_set_env (script, "LD_PRELOAD", g_getenv ("LD_PRELOAD"));
364 process_set_env (script, "LD_LIBRARY_PATH", g_getenv ("LD_LIBRARY_PATH"));
365 process_set_env (script, "PATH", g_getenv ("PATH"));
368 process_set_env (script, "PATH", "/usr/local/bin:/usr/bin:/bin");
372 process_set_env (script, "USER", user_get_name (user));
373 process_set_env (script, "LOGNAME", user_get_name (user));
374 process_set_env (script, "HOME", user_get_home_directory (user));
377 process_set_env (script, "HOME", "/");
379 SEAT_GET_CLASS (seat)->run_script (seat, display_server, script);
381 if (process_start (script, TRUE))
385 exit_status = process_get_exit_status (script);
386 if (WIFEXITED (exit_status))
388 l_debug (seat, "Exit status of %s: %d", script_name, WEXITSTATUS (exit_status));
389 result = WEXITSTATUS (exit_status) == EXIT_SUCCESS;
393 g_object_unref (script);
399 seat_real_run_script (Seat *seat, DisplayServer *display_server, Process *process)
404 emit_upstart_signal (const gchar *signal)
406 g_return_if_fail (signal != NULL);
407 g_return_if_fail (signal[0] != 0);
413 /* OK if it fails, probably not installed or not running upstart */
414 p = g_subprocess_new (G_SUBPROCESS_FLAGS_STDERR_SILENCE, NULL, "initctl", "-q", "emit", signal, "DISPLAY_MANAGER=lightdm", NULL);
419 check_stopped (Seat *seat)
421 if (seat->priv->stopping &&
422 !seat->priv->stopped &&
423 g_list_length (seat->priv->display_servers) == 0 &&
424 g_list_length (seat->priv->sessions) == 0)
426 seat->priv->stopped = TRUE;
427 l_debug (seat, "Stopped");
428 g_signal_emit (seat, signals[STOPPED], 0);
433 display_server_stopped_cb (DisplayServer *display_server, Seat *seat)
437 Session *active_session;
439 l_debug (seat, "Display server stopped");
441 /* Run a script right after stopping the display server */
442 script = seat_get_string_property (seat, "display-stopped-script");
444 run_script (seat, NULL, script, NULL);
446 g_signal_handlers_disconnect_matched (display_server, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, seat);
447 seat->priv->display_servers = g_list_remove (seat->priv->display_servers, display_server);
449 if (seat->priv->stopping || !seat->priv->started)
451 check_stopped (seat);
452 g_object_unref (display_server);
456 /* Stop all sessions on this display server */
457 list = g_list_copy (seat->priv->sessions);
458 for (link = list; link; link = link->next)
459 g_object_ref (link->data);
460 for (link = list; link; link = link->next)
462 Session *session = link->data;
464 if (session_get_display_server (session) != display_server || session_get_is_stopping (session))
467 /* Stop seat if this is the only display server and it failed to start a greeter */
468 if (IS_GREETER_SESSION (session) &&
469 !session_get_is_started (session) &&
470 g_list_length (seat->priv->display_servers) == 0)
472 l_debug (seat, "Stopping; greeter display server failed to start");
476 l_debug (seat, "Stopping session");
477 session_stop (session);
479 g_list_free_full (list, g_object_unref);
481 if (!seat->priv->stopping)
483 /* If we were the active session, switch to a greeter */
484 active_session = seat_get_active_session (seat);
485 if (!active_session || session_get_display_server (active_session) == display_server)
487 l_debug (seat, "Active display server stopped, starting greeter");
488 if (!seat_switch_to_greeter (seat))
490 l_debug (seat, "Stopping; failed to start a greeter");
496 g_object_unref (display_server);
500 can_share_display_server (Seat *seat, DisplayServer *display_server)
502 return seat->priv->share_display_server && display_server_get_can_share (display_server);
505 static GreeterSession *
506 find_greeter_session (Seat *seat)
510 for (link = seat->priv->sessions; link; link = link->next)
512 Session *session = link->data;
513 if (!session_get_is_stopping (session) && IS_GREETER_SESSION (session))
514 return GREETER_SESSION (session);
520 static GreeterSession *
521 find_resettable_greeter (Seat *seat)
525 for (link = seat->priv->sessions; link; link = link->next)
527 Session *session = link->data;
528 if (!session_get_is_stopping (session) && IS_GREETER_SESSION (session) &&
529 greeter_get_resettable (greeter_session_get_greeter (GREETER_SESSION (session))))
530 return GREETER_SESSION (session);
537 set_greeter_hints (Seat *seat, Greeter *greeter)
539 greeter_clear_hints (greeter);
540 greeter_set_hint (greeter, "default-session", seat_get_string_property (seat, "user-session"));
541 greeter_set_hint (greeter, "hide-users", seat_get_boolean_property (seat, "greeter-hide-users") ? "true" : "false");
542 greeter_set_hint (greeter, "show-manual-login", seat_get_boolean_property (seat, "greeter-show-manual-login") ? "true" : "false");
543 greeter_set_hint (greeter, "show-remote-login", seat_get_boolean_property (seat, "greeter-show-remote-login") ? "true" : "false");
544 greeter_set_hint (greeter, "has-guest-account", seat_get_allow_guest (seat) && seat_get_boolean_property (seat, "greeter-allow-guest") ? "true" : "false");
548 switch_to_greeter_from_failed_session (Seat *seat, Session *session)
550 GreeterSession *greeter_session;
552 gboolean existing = FALSE;
554 /* Switch to greeter if one open */
555 greeter_session = find_resettable_greeter (seat);
558 l_debug (seat, "Switching to existing greeter");
559 set_greeter_hints (seat, greeter_session_get_greeter (greeter_session));
564 greeter_session = create_greeter_session (seat);
566 greeter = greeter_session_get_greeter (greeter_session);
568 if (session_get_is_guest (session))
569 greeter_set_hint (greeter, "select-guest", "true");
571 greeter_set_hint (greeter, "select-user", session_get_username (session));
575 greeter_reset (greeter);
576 seat_set_active_session (seat, SESSION (greeter_session));
580 g_clear_object (&seat->priv->session_to_activate);
581 seat->priv->session_to_activate = g_object_ref (greeter_session);
583 if (can_share_display_server (seat, session_get_display_server (session)))
584 session_set_display_server (SESSION (greeter_session), session_get_display_server (session));
587 DisplayServer *display_server;
589 display_server = create_display_server (seat, session);
590 session_set_display_server (session, display_server);
591 if (!display_server_start (display_server))
593 l_debug (seat, "Failed to start display server for greeter");
598 start_session (seat, SESSION (greeter_session));
601 /* Stop failed session */
602 session_stop (session);
606 start_session (Seat *seat, Session *session)
608 /* Use system location for greeter log file */
609 if (IS_GREETER_SESSION (session))
611 gchar *log_dir, *filename, *log_filename;
612 gboolean backup_logs;
614 log_dir = config_get_string (config_get_instance (), "LightDM", "log-directory");
615 filename = g_strdup_printf ("%s-greeter.log", display_server_get_name (session_get_display_server (session)));
616 log_filename = g_build_filename (log_dir, filename, NULL);
619 backup_logs = config_get_boolean (config_get_instance (), "LightDM", "backup-logs");
620 session_set_log_file (session, log_filename, backup_logs ? LOG_MODE_BACKUP_AND_TRUNCATE : LOG_MODE_APPEND);
621 g_free (log_filename);
624 if (session_start (session))
627 if (IS_GREETER_SESSION (session))
629 l_debug (seat, "Failed to start greeter");
630 display_server_stop (session_get_display_server (session));
634 l_debug (seat, "Failed to start session, starting greeter");
635 switch_to_greeter_from_failed_session (seat, session);
639 run_session (Seat *seat, Session *session)
643 if (IS_GREETER_SESSION (session))
644 script = seat_get_string_property (seat, "greeter-setup-script");
646 script = seat_get_string_property (seat, "session-setup-script");
647 if (script && !run_script (seat, session_get_display_server (session), script, session_get_user (session)))
649 l_debug (seat, "Switching to greeter due to failed setup script");
650 switch_to_greeter_from_failed_session (seat, session);
654 if (!IS_GREETER_SESSION (session))
656 g_signal_emit (seat, signals[RUNNING_USER_SESSION], 0, session);
657 emit_upstart_signal ("desktop-session-start");
660 session_run (session);
662 // FIXME: Wait until the session is ready
664 if (session == seat->priv->session_to_activate)
666 seat_set_active_session (seat, session);
667 g_clear_object (&seat->priv->session_to_activate);
669 else if (seat->priv->active_session)
671 /* Multiple sessions can theoretically be on the same VT (especially
672 if using Mir). If a new session appears on an existing active VT,
673 logind will mark it as active, while ConsoleKit will re-mark the
674 oldest session as active. In either case, that may not be the
675 session that we want to be active. So let's be explicit and
676 re-activate the correct session whenever a new session starts.
677 There's no harm to do this in seats that enforce separate VTs. */
678 session_activate (seat->priv->active_session);
683 find_user_session (Seat *seat, const gchar *username, Session *ignore_session)
690 for (link = seat->priv->sessions; link; link = link->next)
692 Session *session = link->data;
694 if (session == ignore_session)
697 if (!session_get_is_stopping (session) && g_strcmp0 (session_get_username (session), username) == 0)
705 greeter_active_username_changed_cb (Greeter *greeter, GParamSpec *pspec, Seat *seat)
709 session = find_user_session (seat, greeter_get_active_username (greeter), seat->priv->active_session);
711 g_clear_object (&seat->priv->next_session);
712 seat->priv->next_session = session ? g_object_ref (session) : NULL;
714 SEAT_GET_CLASS (seat)->set_next_session (seat, session);
718 session_authentication_complete_cb (Session *session, Seat *seat)
720 if (session_get_is_authenticated (session))
724 s = find_user_session (seat, session_get_username (session), session);
727 l_debug (seat, "Session authenticated, switching to existing user session");
728 seat_set_active_session (seat, s);
729 session_stop (session);
733 l_debug (seat, "Session authenticated, running command");
734 run_session (seat, session);
737 else if (!IS_GREETER_SESSION (session))
739 l_debug (seat, "Switching to greeter due to failed authentication");
740 switch_to_greeter_from_failed_session (seat, session);
744 l_debug (seat, "Stopping session that failed authentication");
745 session_stop (session);
750 session_stopped_cb (Session *session, Seat *seat)
752 DisplayServer *display_server;
754 l_debug (seat, "Session stopped");
756 g_signal_handlers_disconnect_matched (session, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, seat);
757 seat->priv->sessions = g_list_remove (seat->priv->sessions, session);
758 if (session == seat->priv->active_session)
759 g_clear_object (&seat->priv->active_session);
760 if (session == seat->priv->next_session)
761 g_clear_object (&seat->priv->next_session);
762 if (session == seat->priv->session_to_activate)
763 g_clear_object (&seat->priv->session_to_activate);
765 display_server = session_get_display_server (session);
768 g_object_unref (session);
773 if (!IS_GREETER_SESSION (session))
776 script = seat_get_string_property (seat, "session-cleanup-script");
778 run_script (seat, display_server, script, session_get_user (session));
781 /* We were waiting for this session, but it didn't start :( */
782 // FIXME: Start a greeter on this?
783 if (session == seat->priv->session_to_activate)
784 g_clear_object (&seat->priv->session_to_activate);
786 if (seat->priv->stopping)
788 check_stopped (seat);
789 g_object_unref (session);
793 /* If there is a pending replacement greeter, start it */
794 if (IS_GREETER_SESSION (session) && seat->priv->replacement_greeter)
796 GreeterSession *replacement_greeter = seat->priv->replacement_greeter;
797 seat->priv->replacement_greeter = NULL;
799 if (session_get_is_authenticated (SESSION (replacement_greeter)))
801 l_debug (seat, "Greeter stopped, running session");
802 run_session (seat, SESSION (replacement_greeter));
806 l_debug (seat, "Greeter stopped, starting session authentication");
807 start_session (seat, SESSION (replacement_greeter));
810 g_object_unref (replacement_greeter);
812 /* If this is the greeter session then re-use this display server */
813 else if (IS_GREETER_SESSION (session) &&
814 can_share_display_server (seat, display_server) &&
815 greeter_get_start_session (greeter_session_get_greeter (GREETER_SESSION (session))))
819 for (link = seat->priv->sessions; link; link = link->next)
821 Session *s = link->data;
823 /* Skip this session and sessions on other display servers */
824 if (s == session || session_get_display_server (s) != display_server || session_get_is_stopping (s))
827 if (session_get_is_authenticated (s))
829 l_debug (seat, "Greeter stopped, running session");
830 run_session (seat, s);
834 l_debug (seat, "Greeter stopped, starting session authentication");
835 start_session (seat, s);
840 /* If this is the greeter and nothing else is running then stop the seat */
841 else if (IS_GREETER_SESSION (session) &&
842 !greeter_get_start_session (greeter_session_get_greeter (GREETER_SESSION (session))) &&
843 g_list_length (seat->priv->display_servers) == 1 &&
844 g_list_nth_data (seat->priv->display_servers, 0) == display_server)
846 l_debug (seat, "Stopping; failed to start a greeter");
849 /* If we were the active session, switch to a greeter */
850 else if (!IS_GREETER_SESSION (session) && session == seat_get_active_session (seat))
852 l_debug (seat, "Active session stopped, starting greeter");
853 if (!seat_switch_to_greeter (seat))
855 l_debug (seat, "Stopping; failed to start a greeter");
860 /* Stop the display server if no-longer required */
861 if (display_server && !display_server_get_is_stopping (display_server))
866 for (link = seat->priv->sessions; link; link = link->next)
868 Session *s = link->data;
871 if (session_get_display_server (s) == display_server)
876 l_debug (seat, "Stopping display server, no sessions require it");
877 display_server_stop (display_server);
881 g_signal_emit (seat, signals[SESSION_REMOVED], 0, session);
882 g_object_unref (session);
886 set_session_env (Session *session)
888 /* Connect using the session bus */
891 if (g_getenv ("DBUS_SESSION_BUS_ADDRESS"))
892 session_set_env (session, "DBUS_SESSION_BUS_ADDRESS", g_getenv ("DBUS_SESSION_BUS_ADDRESS"));
893 session_set_env (session, "LDM_BUS", "SESSION");
894 if (g_getenv ("LD_PRELOAD"))
895 session_set_env (session, "LD_PRELOAD", g_getenv ("LD_PRELOAD"));
896 if (g_getenv ("LD_LIBRARY_PATH"))
897 session_set_env (session, "LD_LIBRARY_PATH", g_getenv ("LD_LIBRARY_PATH"));
898 if (g_getenv ("PATH"))
899 session_set_env (session, "PATH", g_getenv ("PATH"));
902 /* Variables required for regression tests */
903 if (g_getenv ("LIGHTDM_TEST_ROOT"))
905 session_set_env (session, "LIGHTDM_TEST_ROOT", g_getenv ("LIGHTDM_TEST_ROOT"));
906 session_set_env (session, "DBUS_SYSTEM_BUS_ADDRESS", g_getenv ("DBUS_SYSTEM_BUS_ADDRESS"));
907 session_set_env (session, "DBUS_SESSION_BUS_ADDRESS", g_getenv ("DBUS_SESSION_BUS_ADDRESS"));
908 session_set_env (session, "LD_PRELOAD", g_getenv ("LD_PRELOAD"));
909 session_set_env (session, "LD_LIBRARY_PATH", g_getenv ("LD_LIBRARY_PATH"));
910 session_set_env (session, "GI_TYPELIB_PATH", g_getenv ("GI_TYPELIB_PATH"));
915 create_session (Seat *seat, gboolean autostart)
919 session = SEAT_GET_CLASS (seat)->create_session (seat);
920 seat->priv->sessions = g_list_append (seat->priv->sessions, session);
922 g_signal_connect (session, SESSION_SIGNAL_AUTHENTICATION_COMPLETE, G_CALLBACK (session_authentication_complete_cb), seat);
923 g_signal_connect (session, SESSION_SIGNAL_STOPPED, G_CALLBACK (session_stopped_cb), seat);
925 set_session_env (session);
927 g_signal_emit (seat, signals[SESSION_ADDED], 0, session);
933 get_session_argv (Seat *seat, SessionConfig *session_config, const gchar *session_wrapper)
938 GError *error = NULL;
940 /* If configured, run sessions through a wrapper */
943 argv = g_malloc (sizeof (gchar *) * 3);
944 path = g_find_program_in_path (session_wrapper);
945 argv[0] = path ? path : g_strdup (session_wrapper);
946 argv[1] = g_strdup (session_config_get_command (session_config));
951 /* Split command into an array listing and make command absolute */
952 result = g_shell_parse_argv (session_config_get_command (session_config), &argc, &argv, &error);
954 l_debug (seat, "Invalid session command '%s': %s", session_config_get_command (session_config), error->message);
955 g_clear_error (&error);
958 path = g_find_program_in_path (argv[0]);
968 static SessionConfig *
969 find_session_config (Seat *seat, const gchar *sessions_dir, const gchar *session_name)
972 SessionConfig *session_config = NULL;
974 GError *error = NULL;
976 g_return_val_if_fail (sessions_dir != NULL, NULL);
977 g_return_val_if_fail (session_name != NULL, NULL);
979 dirs = g_strsplit (sessions_dir, ":", -1);
980 for (i = 0; dirs[i]; i++)
982 gchar *filename, *path;
983 const gchar *default_session_type = "x";
985 if (strcmp (dirs[i], WAYLAND_SESSIONS_DIR) == 0)
986 default_session_type = "wayland";
988 filename = g_strdup_printf ("%s.desktop", session_name);
989 path = g_build_filename (dirs[i], filename, NULL);
991 session_config = session_config_new_from_file (path, default_session_type, &error);
996 if (dirs[i+1] == NULL)
997 l_debug (seat, "Failed to find session configuration %s", session_name);
998 g_clear_error (&error);
1002 return session_config;
1006 configure_session (Session *session, SessionConfig *config, const gchar *session_name, const gchar *language)
1008 gchar **desktop_names;
1010 session_set_config (session, config);
1011 session_set_env (session, "XDG_SESSION_DESKTOP", session_name);
1012 session_set_env (session, "DESKTOP_SESSION", session_name);
1013 session_set_env (session, "GDMSESSION", session_name);
1014 desktop_names = session_config_get_desktop_names (config);
1018 value = g_strjoinv (":", desktop_names);
1019 session_set_env (session, "XDG_CURRENT_DESKTOP", value);
1022 if (language && language[0] != '\0')
1024 session_set_env (session, "LANG", language);
1025 session_set_env (session, "GDM_LANG", language);
1030 create_user_session (Seat *seat, const gchar *username, gboolean autostart)
1033 gchar *sessions_dir;
1034 const gchar *session_name, *language;
1035 SessionConfig *session_config;
1036 Session *session = NULL;
1038 l_debug (seat, "Creating user session");
1040 /* Load user preferences */
1041 user = accounts_get_user_by_name (username);
1044 l_debug (seat, "Can't login unknown user '%s'", username);
1047 session_name = user_get_xsession (user);
1048 language = user_get_language (user);
1050 /* Override session for autologin if configured */
1053 const gchar *autologin_session_name = seat_get_string_property (seat, "autologin-session");
1054 if (autologin_session_name)
1055 session_name = autologin_session_name;
1059 session_name = seat_get_string_property (seat, "user-session");
1060 sessions_dir = config_get_string (config_get_instance (), "LightDM", "sessions-directory");
1061 session_config = find_session_config (seat, sessions_dir, session_name);
1062 g_free (sessions_dir);
1067 session = create_session (seat, autostart);
1068 configure_session (session, session_config, session_name, language);
1069 session_set_username (session, username);
1070 session_set_do_authenticate (session, TRUE);
1071 argv = get_session_argv (seat, session_config, seat_get_string_property (seat, "session-wrapper"));
1072 session_set_argv (session, argv);
1074 g_object_unref (session_config);
1077 l_debug (seat, "Can't find session '%s'", session_name);
1079 g_object_unref (user);
1085 prepend_argv (gchar ***argv, const gchar *value)
1087 gchar **old_argv, **new_argv;
1091 new_argv = g_malloc (sizeof (gchar *) * (g_strv_length (*argv) + 2));
1092 new_argv[0] = g_strdup (value);
1093 for (i = 0; old_argv[i]; i++)
1094 new_argv[i + 1] = old_argv[i];
1095 new_argv[i + 1] = NULL;
1102 create_guest_session (Seat *seat, const gchar *session_name)
1104 const gchar *guest_wrapper;
1105 gchar *sessions_dir, **argv;
1106 SessionConfig *session_config;
1110 session_name = seat_get_string_property (seat, "guest-session");
1112 session_name = seat_get_string_property (seat, "user-session");
1113 sessions_dir = config_get_string (config_get_instance (), "LightDM", "sessions-directory");
1114 session_config = find_session_config (seat, sessions_dir, session_name);
1115 g_free (sessions_dir);
1116 if (!session_config)
1118 l_debug (seat, "Can't find session '%s'", session_name);
1122 session = create_session (seat, TRUE);
1123 configure_session (session, session_config, session_name, NULL);
1124 session_set_do_authenticate (session, TRUE);
1125 session_set_is_guest (session, TRUE);
1126 argv = get_session_argv (seat, session_config, seat_get_string_property (seat, "session-wrapper"));
1127 guest_wrapper = seat_get_string_property (seat, "guest-wrapper");
1131 path = g_find_program_in_path (guest_wrapper);
1132 prepend_argv (&argv, path ? path : guest_wrapper);
1136 session_set_argv (session, argv);
1138 g_object_unref (session_config);
1143 // FIXME: This is inefficient and we already know the greeter session when we set the callbacks...
1145 get_greeter_session (Seat *seat, Greeter *greeter)
1149 /* Stop any greeters */
1150 for (link = seat->priv->sessions; link; link = link->next)
1152 Session *session = link->data;
1154 if (IS_GREETER_SESSION (session) && greeter_session_get_greeter (GREETER_SESSION (session)))
1162 greeter_create_session_cb (Greeter *greeter, Seat *seat)
1164 Session *greeter_session, *session;
1166 greeter_session = get_greeter_session (seat, greeter);
1167 session = create_session (seat, FALSE);
1168 session_set_config (session, session_get_config (greeter_session));
1169 session_set_display_server (session, session_get_display_server (greeter_session));
1171 return g_object_ref (session);
1175 greeter_start_session_cb (Greeter *greeter, SessionType type, const gchar *session_name, Seat *seat)
1177 Session *session, *existing_session, *greeter_session;
1178 const gchar *username;
1179 DisplayServer *display_server;
1181 /* Get the session to use */
1182 if (greeter_get_guest_authenticated (greeter))
1184 session = create_guest_session (seat, session_name);
1187 session_set_pam_service (session, seat_get_string_property (seat, "pam-autologin-service"));
1191 const gchar *language = NULL;
1192 SessionConfig *session_config;
1194 gchar *sessions_dir = NULL;
1197 session = greeter_get_authentication_session (greeter);
1199 /* Get session command to run */
1202 case SESSION_TYPE_LOCAL:
1203 sessions_dir = config_get_string (config_get_instance (), "LightDM", "sessions-directory");
1205 case SESSION_TYPE_REMOTE:
1206 sessions_dir = config_get_string (config_get_instance (), "LightDM", "remote-sessions-directory");
1210 /* Load user preferences */
1211 user = session_get_user (session);
1215 session_name = user_get_xsession (user);
1216 language = user_get_language (user);
1220 session_name = seat_get_string_property (seat, "user-session");
1222 user_set_xsession (session_get_user (session), session_name);
1224 session_config = find_session_config (seat, sessions_dir, session_name);
1225 g_free (sessions_dir);
1226 if (!session_config)
1228 l_debug (seat, "Can't find session '%s'", session_name);
1232 configure_session (session, session_config, session_name, language);
1233 argv = get_session_argv (seat, session_config, seat_get_string_property (seat, "session-wrapper"));
1234 session_set_argv (session, argv);
1236 g_object_unref (session_config);
1239 /* Switch to this session when it is ready */
1240 g_clear_object (&seat->priv->session_to_activate);
1241 seat->priv->session_to_activate = g_object_ref (session);
1243 /* Return to existing session if it is open */
1244 username = session_get_username (session);
1245 existing_session = find_user_session (seat, username, NULL);
1246 if (existing_session && session != existing_session)
1248 l_debug (seat, "Returning to existing user session %s", username);
1249 session_stop (session);
1250 session_unlock (existing_session);
1251 seat_set_active_session (seat, existing_session);
1255 /* If can re-use the display server, stop the greeter first */
1256 greeter_session = get_greeter_session (seat, greeter);
1257 display_server = session_get_display_server (greeter_session);
1258 if (!greeter_get_resettable (greeter) &&
1259 can_share_display_server (seat, display_server) &&
1260 strcmp (display_server_get_session_type (display_server), session_get_session_type (session)) == 0)
1262 l_debug (seat, "Stopping greeter; display server will be re-used for user session");
1264 /* Run on the same display server after the greeter has stopped */
1265 session_set_display_server (session, display_server);
1267 /* Stop the greeter */
1268 session_stop (greeter_session);
1272 /* Otherwise start a new display server for this session */
1275 display_server = create_display_server (seat, session);
1276 session_set_display_server (session, display_server);
1277 if (!display_server_start (display_server))
1279 l_debug (seat, "Failed to start display server for new session");
1287 static GreeterSession *
1288 create_greeter_session (Seat *seat)
1290 gchar *sessions_dir, **argv;
1291 SessionConfig *session_config;
1292 GreeterSession *greeter_session;
1294 const gchar *greeter_wrapper;
1295 const gchar *autologin_username;
1296 int autologin_timeout;
1297 gboolean autologin_guest;
1299 l_debug (seat, "Creating greeter session");
1301 sessions_dir = config_get_string (config_get_instance (), "LightDM", "greeters-directory");
1302 session_config = find_session_config (seat, sessions_dir, seat_get_string_property (seat, "greeter-session"));
1303 g_free (sessions_dir);
1304 if (!session_config)
1307 argv = get_session_argv (seat, session_config, NULL);
1308 greeter_wrapper = seat_get_string_property (seat, "greeter-wrapper");
1309 if (greeter_wrapper)
1312 path = g_find_program_in_path (greeter_wrapper);
1313 prepend_argv (&argv, path ? path : greeter_wrapper);
1317 greeter_session = SEAT_GET_CLASS (seat)->create_greeter_session (seat);
1318 greeter = greeter_session_get_greeter (greeter_session);
1319 session_set_config (SESSION (greeter_session), session_config);
1320 seat->priv->sessions = g_list_append (seat->priv->sessions, SESSION (greeter_session));
1321 g_signal_connect (greeter, GREETER_SIGNAL_ACTIVE_USERNAME_CHANGED, G_CALLBACK (greeter_active_username_changed_cb), seat);
1322 g_signal_connect (greeter_session, SESSION_SIGNAL_AUTHENTICATION_COMPLETE, G_CALLBACK (session_authentication_complete_cb), seat);
1323 g_signal_connect (greeter_session, SESSION_SIGNAL_STOPPED, G_CALLBACK (session_stopped_cb), seat);
1325 set_session_env (SESSION (greeter_session));
1326 session_set_env (SESSION (greeter_session), "XDG_SESSION_CLASS", "greeter");
1328 session_set_pam_service (SESSION (greeter_session), seat_get_string_property (seat, "pam-greeter-service"));
1331 gchar *greeter_user;
1332 greeter_user = config_get_string (config_get_instance (), "LightDM", "greeter-user");
1333 session_set_username (SESSION (greeter_session), greeter_user);
1334 g_free (greeter_user);
1338 /* In test mode run the greeter as ourself */
1339 session_set_username (SESSION (greeter_session), user_get_name (accounts_get_current_user ()));
1341 session_set_argv (SESSION (greeter_session), argv);
1344 greeter_set_pam_services (greeter,
1345 seat_get_string_property (seat, "pam-service"),
1346 seat_get_string_property (seat, "pam-autologin-service"));
1347 g_signal_connect (greeter, GREETER_SIGNAL_CREATE_SESSION, G_CALLBACK (greeter_create_session_cb), seat);
1348 g_signal_connect (greeter, GREETER_SIGNAL_START_SESSION, G_CALLBACK (greeter_start_session_cb), seat);
1350 /* Set hints to greeter */
1351 greeter_set_allow_guest (greeter, seat_get_allow_guest (seat));
1352 set_greeter_hints (seat, greeter);
1354 /* Configure for automatic login */
1355 autologin_username = seat_get_string_property (seat, "autologin-user");
1356 if (g_strcmp0 (autologin_username, "") == 0)
1357 autologin_username = NULL;
1358 autologin_timeout = seat_get_integer_property (seat, "autologin-user-timeout");
1359 autologin_guest = seat_get_boolean_property (seat, "autologin-guest");
1360 if (autologin_timeout > 0)
1364 value = g_strdup_printf ("%d", autologin_timeout);
1365 greeter_set_hint (greeter, "autologin-timeout", value);
1367 if (autologin_username)
1368 greeter_set_hint (greeter, "autologin-user", autologin_username);
1369 if (autologin_guest)
1370 greeter_set_hint (greeter, "autologin-guest", "true");
1373 g_object_unref (session_config);
1375 return greeter_session;
1379 find_session_for_display_server (Seat *seat, DisplayServer *display_server)
1383 for (link = seat->priv->sessions; link; link = link->next)
1385 Session *session = link->data;
1386 if (session_get_display_server (session) == display_server && !session_get_is_stopping (session))
1394 display_server_ready_cb (DisplayServer *display_server, Seat *seat)
1396 const gchar *script;
1399 /* Run setup script */
1400 script = seat_get_string_property (seat, "display-setup-script");
1401 if (script && !run_script (seat, display_server, script, NULL))
1403 l_debug (seat, "Stopping display server due to failed setup script");
1404 display_server_stop (display_server);
1408 emit_upstart_signal ("login-session-start");
1410 /* Start the session waiting for this display server */
1411 session = find_session_for_display_server (seat, display_server);
1414 if (session_get_is_authenticated (session))
1416 l_debug (seat, "Display server ready, running session");
1417 run_session (seat, session);
1421 l_debug (seat, "Display server ready, starting session authentication");
1422 start_session (seat, session);
1427 l_debug (seat, "Stopping not required display server");
1428 display_server_stop (display_server);
1432 static DisplayServer *
1433 create_display_server (Seat *seat, Session *session)
1435 DisplayServer *display_server;
1437 l_debug (seat, "Creating display server of type %s", session_get_session_type (session));
1439 display_server = SEAT_GET_CLASS (seat)->create_display_server (seat, session);
1440 if (!display_server)
1443 seat->priv->display_servers = g_list_append (seat->priv->display_servers, display_server);
1444 g_signal_connect (display_server, DISPLAY_SERVER_SIGNAL_READY, G_CALLBACK (display_server_ready_cb), seat);
1445 g_signal_connect (display_server, DISPLAY_SERVER_SIGNAL_STOPPED, G_CALLBACK (display_server_stopped_cb), seat);
1447 return display_server;
1451 seat_switch_to_greeter (Seat *seat)
1453 GreeterSession *greeter_session;
1454 DisplayServer *display_server;
1456 g_return_val_if_fail (seat != NULL, FALSE);
1458 if (!seat_get_can_switch (seat))
1461 /* Switch to greeter if one open */
1462 greeter_session = find_greeter_session (seat);
1463 if (greeter_session)
1465 l_debug (seat, "Switching to existing greeter");
1466 seat_set_active_session (seat, SESSION (greeter_session));
1470 greeter_session = create_greeter_session (seat);
1471 if (!greeter_session)
1474 g_clear_object (&seat->priv->session_to_activate);
1475 seat->priv->session_to_activate = g_object_ref (greeter_session);
1477 display_server = create_display_server (seat, SESSION (greeter_session));
1478 session_set_display_server (SESSION (greeter_session), display_server);
1480 return display_server_start (display_server);
1484 switch_authentication_complete_cb (Session *session, Seat *seat)
1486 GreeterSession *greeter_session;
1488 DisplayServer *display_server;
1489 gboolean existing = FALSE;
1491 /* If authenticated, then unlock existing session or start new one */
1492 if (session_get_is_authenticated (session))
1496 s = find_user_session (seat, session_get_username (session), session);
1499 l_debug (seat, "Session authenticated, switching to existing user session");
1501 seat_set_active_session (seat, s);
1502 session_stop (session);
1506 l_debug (seat, "Session authenticated, starting display server");
1507 g_clear_object (&seat->priv->session_to_activate);
1508 seat->priv->session_to_activate = g_object_ref (session);
1509 display_server = create_display_server (seat, session);
1510 session_set_display_server (session, display_server);
1511 display_server_start (display_server);
1517 session_stop (session);
1519 /* See if we already have a greeter up and reuse it if so */
1520 greeter_session = find_resettable_greeter (seat);
1521 if (greeter_session)
1523 l_debug (seat, "Switching to existing greeter to authenticate session");
1524 set_greeter_hints (seat, greeter_session_get_greeter (greeter_session));
1529 l_debug (seat, "Starting greeter to authenticate session");
1530 greeter_session = create_greeter_session (seat);
1532 greeter = greeter_session_get_greeter (greeter_session);
1534 if (session_get_is_guest (session))
1535 greeter_set_hint (greeter, "select-guest", "true");
1537 greeter_set_hint (greeter, "select-user", session_get_username (session));
1541 greeter_reset (greeter);
1542 seat_set_active_session (seat, SESSION (greeter_session));
1546 g_clear_object (&seat->priv->session_to_activate);
1547 seat->priv->session_to_activate = g_object_ref (greeter_session);
1549 display_server = create_display_server (seat, SESSION (greeter_session));
1550 session_set_display_server (SESSION (greeter_session), display_server);
1551 display_server_start (display_server);
1556 seat_switch_to_user (Seat *seat, const gchar *username, const gchar *session_name)
1560 g_return_val_if_fail (seat != NULL, FALSE);
1561 g_return_val_if_fail (username != NULL, FALSE);
1563 if (!seat_get_can_switch (seat))
1566 /* If we're already on this session, then ignore */
1567 session = find_user_session (seat, username, NULL);
1568 if (session && session == seat->priv->active_session)
1571 l_debug (seat, "Switching to user %s", username);
1573 /* Attempt to authenticate them */
1574 session = create_user_session (seat, username, FALSE);
1575 g_signal_connect (session, SESSION_SIGNAL_AUTHENTICATION_COMPLETE, G_CALLBACK (switch_authentication_complete_cb), seat);
1576 session_set_pam_service (session, seat_get_string_property (seat, "pam-service"));
1578 return session_start (session);
1582 find_guest_session (Seat *seat)
1586 for (link = seat->priv->sessions; link; link = link->next)
1588 Session *session = link->data;
1589 if (!session_get_is_stopping (session) && session_get_is_guest (session))
1597 seat_switch_to_guest (Seat *seat, const gchar *session_name)
1600 DisplayServer *display_server;
1602 g_return_val_if_fail (seat != NULL, FALSE);
1604 if (!seat_get_can_switch (seat) || !seat_get_allow_guest (seat))
1607 /* Switch to session if one open */
1608 session = find_guest_session (seat);
1611 l_debug (seat, "Switching to existing guest account %s", session_get_username (session));
1612 seat_set_active_session (seat, session);
1616 session = create_guest_session (seat, session_name);
1620 display_server = create_display_server (seat, session);
1622 g_clear_object (&seat->priv->session_to_activate);
1623 seat->priv->session_to_activate = g_object_ref (session);
1624 session_set_pam_service (session, seat_get_string_property (seat, "pam-autologin-service"));
1625 session_set_display_server (session, display_server);
1627 return display_server_start (display_server);
1631 seat_lock (Seat *seat, const gchar *username)
1633 GreeterSession *greeter_session;
1635 DisplayServer *display_server = NULL;
1636 gboolean reset_existing = FALSE;
1637 gboolean reuse_xserver = FALSE;
1639 g_return_val_if_fail (seat != NULL, FALSE);
1641 if (!seat_get_can_switch (seat))
1644 // FIXME: If already locked then don't bother...
1646 l_debug (seat, "Locking");
1648 /* Switch to greeter we can reuse */
1649 greeter_session = find_resettable_greeter (seat);
1650 if (greeter_session)
1652 l_debug (seat, "Switching to existing greeter");
1653 set_greeter_hints (seat, greeter_session_get_greeter (greeter_session));
1654 reset_existing = TRUE;
1658 /* If the existing greeter can't be reused, stop it and reuse its display server */
1659 greeter_session = find_greeter_session (seat);
1660 if (greeter_session)
1662 display_server = session_get_display_server (SESSION (greeter_session));
1663 if (!session_get_is_stopping (SESSION (greeter_session)))
1665 l_debug (seat, "Stopping session");
1666 session_stop (SESSION (greeter_session));
1668 reuse_xserver = TRUE;
1671 greeter_session = create_greeter_session (seat);
1672 if (!greeter_session)
1675 greeter = greeter_session_get_greeter (greeter_session);
1677 greeter_set_hint (greeter, "lock-screen", "true");
1679 greeter_set_hint (greeter, "select-user", username);
1683 greeter_reset (greeter);
1684 seat_set_active_session (seat, SESSION (greeter_session));
1690 display_server = create_display_server (seat, SESSION (greeter_session));
1691 session_set_display_server (SESSION (greeter_session), display_server);
1693 g_clear_object (&seat->priv->session_to_activate);
1694 seat->priv->session_to_activate = g_object_ref (greeter_session);
1698 g_clear_object (&seat->priv->replacement_greeter);
1699 seat->priv->replacement_greeter = g_object_ref (greeter_session);
1703 return display_server_start (display_server);
1708 seat_stop (Seat *seat)
1710 g_return_if_fail (seat != NULL);
1712 if (seat->priv->stopping)
1715 l_debug (seat, "Stopping");
1716 seat->priv->stopping = TRUE;
1717 SEAT_GET_CLASS (seat)->stop (seat);
1721 seat_get_is_stopping (Seat *seat)
1723 g_return_val_if_fail (seat != NULL, FALSE);
1724 return seat->priv->stopping;
1728 seat_real_setup (Seat *seat)
1733 seat_real_start (Seat *seat)
1735 const gchar *autologin_username;
1736 int autologin_timeout;
1737 gboolean autologin_guest;
1738 gboolean autologin_in_background;
1739 Session *session = NULL, *background_session = NULL;
1741 /* Get autologin settings */
1742 autologin_username = seat_get_string_property (seat, "autologin-user");
1743 if (g_strcmp0 (autologin_username, "") == 0)
1744 autologin_username = NULL;
1745 autologin_timeout = seat_get_integer_property (seat, "autologin-user-timeout");
1746 autologin_guest = seat_get_boolean_property (seat, "autologin-guest");
1747 autologin_in_background = seat_get_boolean_property (seat, "autologin-in-background");
1749 /* Autologin if configured */
1750 if (autologin_timeout == 0 || autologin_in_background)
1752 if (autologin_guest)
1753 session = create_guest_session (seat, NULL);
1754 else if (autologin_username != NULL)
1755 session = create_user_session (seat, autologin_username, TRUE);
1758 session_set_pam_service (session, seat_get_string_property (seat, "pam-autologin-service"));
1760 /* Load in background if required */
1761 if (autologin_in_background && session)
1763 background_session = session;
1769 DisplayServer *display_server;
1771 g_clear_object (&seat->priv->session_to_activate);
1772 seat->priv->session_to_activate = g_object_ref (session);
1774 display_server = create_display_server (seat, session);
1775 session_set_display_server (session, display_server);
1776 if (!display_server || !display_server_start (display_server))
1778 l_debug (seat, "Can't create display server for automatic login");
1779 session_stop (session);
1781 display_server_stop (display_server);
1787 /* Fallback to a greeter */
1790 GreeterSession *greeter_session;
1791 DisplayServer *display_server;
1793 greeter_session = create_greeter_session (seat);
1794 if (!greeter_session)
1796 l_debug (seat, "Failed to create greeter session");
1800 g_clear_object (&seat->priv->session_to_activate);
1801 seat->priv->session_to_activate = g_object_ref (greeter_session);
1802 session = SESSION (greeter_session);
1804 display_server = create_display_server (seat, session);
1805 session_set_display_server (session, display_server);
1806 if (!display_server || !display_server_start (display_server))
1808 l_debug (seat, "Can't create display server for greeter");
1809 session_stop (session);
1811 display_server_stop (display_server);
1816 /* Fail if can't start a session */
1823 /* Start background session */
1824 if (background_session)
1826 DisplayServer *background_display_server;
1828 background_display_server = create_display_server (seat, background_session);
1829 session_set_display_server (background_session, background_display_server);
1830 if (!display_server_start (background_display_server))
1831 l_warning (seat, "Failed to start display server for background session");
1837 static GreeterSession *
1838 seat_real_create_greeter_session (Seat *seat)
1840 return greeter_session_new ();
1844 seat_real_create_session (Seat *seat)
1846 return session_new ();
1850 seat_real_set_active_session (Seat *seat, Session *session)
1855 seat_real_set_next_session (Seat *seat, Session *session)
1860 seat_real_get_active_session (Seat *seat)
1866 seat_real_stop (Seat *seat)
1870 check_stopped (seat);
1871 if (seat->priv->stopped)
1874 /* Stop all the display servers and sessions on the seat. Copy the list as
1875 * it might be modified if a display server / session stops during this loop */
1876 list = g_list_copy (seat->priv->display_servers);
1877 for (link = list; link; link = link->next)
1878 g_object_ref (link->data);
1879 for (link = list; link; link = link->next)
1881 DisplayServer *display_server = link->data;
1882 if (!display_server_get_is_stopping (display_server))
1884 l_debug (seat, "Stopping display server");
1885 display_server_stop (display_server);
1888 g_list_free_full (list, g_object_unref);
1889 list = g_list_copy (seat->priv->sessions);
1890 for (link = list; link; link = link->next)
1891 g_object_ref (link->data);
1892 for (link = list; link; link = link->next)
1894 Session *session = link->data;
1895 if (!session_get_is_stopping (session))
1897 l_debug (seat, "Stopping session");
1898 session_stop (session);
1901 g_list_free_full (list, g_object_unref);
1905 seat_init (Seat *seat)
1907 seat->priv = G_TYPE_INSTANCE_GET_PRIVATE (seat, SEAT_TYPE, SeatPrivate);
1908 seat->priv->properties = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
1909 seat->priv->share_display_server = TRUE;
1913 seat_finalize (GObject *object)
1915 Seat *self = SEAT (object);
1918 g_free (self->priv->name);
1919 g_hash_table_unref (self->priv->properties);
1920 for (link = self->priv->display_servers; link; link = link->next)
1922 DisplayServer *display_server = link->data;
1923 g_signal_handlers_disconnect_matched (display_server, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, self);
1925 g_list_free_full (self->priv->display_servers, g_object_unref);
1926 for (link = self->priv->sessions; link; link = link->next)
1928 Session *session = link->data;
1929 g_signal_handlers_disconnect_matched (session, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, self);
1931 g_list_free_full (self->priv->sessions, g_object_unref);
1932 g_clear_object (&self->priv->active_session);
1933 g_clear_object (&self->priv->next_session);
1934 g_clear_object (&self->priv->session_to_activate);
1935 g_clear_object (&self->priv->replacement_greeter);
1937 G_OBJECT_CLASS (seat_parent_class)->finalize (object);
1941 seat_class_init (SeatClass *klass)
1943 GObjectClass *object_class = G_OBJECT_CLASS (klass);
1945 klass->setup = seat_real_setup;
1946 klass->start = seat_real_start;
1947 klass->create_greeter_session = seat_real_create_greeter_session;
1948 klass->create_session = seat_real_create_session;
1949 klass->set_active_session = seat_real_set_active_session;
1950 klass->get_active_session = seat_real_get_active_session;
1951 klass->set_next_session = seat_real_set_next_session;
1952 klass->run_script = seat_real_run_script;
1953 klass->stop = seat_real_stop;
1955 object_class->finalize = seat_finalize;
1957 g_type_class_add_private (klass, sizeof (SeatPrivate));
1959 signals[SESSION_ADDED] =
1960 g_signal_new (SEAT_SIGNAL_SESSION_ADDED,
1961 G_TYPE_FROM_CLASS (klass),
1963 G_STRUCT_OFFSET (SeatClass, session_added),
1966 G_TYPE_NONE, 1, SESSION_TYPE);
1967 signals[RUNNING_USER_SESSION] =
1968 g_signal_new (SEAT_SIGNAL_RUNNING_USER_SESSION,
1969 G_TYPE_FROM_CLASS (klass),
1971 G_STRUCT_OFFSET (SeatClass, running_user_session),
1974 G_TYPE_NONE, 1, SESSION_TYPE);
1975 signals[SESSION_REMOVED] =
1976 g_signal_new (SEAT_SIGNAL_SESSION_REMOVED,
1977 G_TYPE_FROM_CLASS (klass),
1979 G_STRUCT_OFFSET (SeatClass, session_removed),
1982 G_TYPE_NONE, 1, SESSION_TYPE);
1984 g_signal_new (SEAT_SIGNAL_STOPPED,
1985 G_TYPE_FROM_CLASS (klass),
1987 G_STRUCT_OFFSET (SeatClass, stopped),
1994 seat_real_logprefix (Logger *self, gchar *buf, gulong buflen)
1996 return g_snprintf (buf, buflen, "Seat %s: ", SEAT (self)->priv->name);
2000 seat_logger_iface_init (LoggerInterface *iface)
2002 iface->logprefix = &seat_real_logprefix;