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 free_seat_module (gpointer data)
94 SeatModule *module = data;
95 g_free (module->name);
100 seat_register_module (const gchar *name, GType type)
105 seat_modules = g_hash_table_new_full (g_str_hash, g_str_equal, free_seat_module, NULL);
107 g_debug ("Registered seat module %s", name);
109 module = g_malloc0 (sizeof (SeatModule));
110 module->name = g_strdup (name);
112 g_hash_table_insert (seat_modules, g_strdup (name), module);
116 seat_new (const gchar *module_name, const gchar *name)
119 SeatModule *m = NULL;
121 g_return_val_if_fail (module_name != NULL, NULL);
124 m = g_hash_table_lookup (seat_modules, module_name);
128 seat = g_object_new (m->type, NULL);
129 seat->priv->name = g_strdup (name);
135 seat_set_property (Seat *seat, const gchar *name, const gchar *value)
137 g_return_if_fail (seat != NULL);
138 g_hash_table_insert (seat->priv->properties, g_strdup (name), g_strdup (value));
142 seat_get_string_property (Seat *seat, const gchar *name)
144 g_return_val_if_fail (seat != NULL, NULL);
145 return g_hash_table_lookup (seat->priv->properties, name);
149 seat_get_string_list_property (Seat *seat, const gchar *name)
151 g_return_val_if_fail (seat != NULL, NULL);
152 return g_strsplit (g_hash_table_lookup (seat->priv->properties, name), ";", 0);
156 seat_get_boolean_property (Seat *seat, const gchar *name)
161 value = seat_get_string_property (seat, name);
165 /* Count the number of non-whitespace characters */
166 for (i = 0; value[i]; i++)
167 if (!g_ascii_isspace (value[i]))
170 return strncmp (value, "true", MAX (length, 4)) == 0;
174 seat_get_integer_property (Seat *seat, const gchar *name)
178 value = seat_get_string_property (seat, name);
179 return value ? atoi (value) : 0;
183 seat_get_name (Seat *seat)
185 return seat->priv->name;
189 seat_set_supports_multi_session (Seat *seat, gboolean supports_multi_session)
191 g_return_if_fail (seat != NULL);
192 seat->priv->supports_multi_session = supports_multi_session;
196 seat_set_share_display_server (Seat *seat, gboolean share_display_server)
198 g_return_if_fail (seat != NULL);
199 seat->priv->share_display_server = share_display_server;
203 seat_start (Seat *seat)
205 g_return_val_if_fail (seat != NULL, FALSE);
207 l_debug (seat, "Starting");
209 SEAT_GET_CLASS (seat)->setup (seat);
210 seat->priv->started = SEAT_GET_CLASS (seat)->start (seat);
212 return seat->priv->started;
216 seat_get_sessions (Seat *seat)
218 g_return_val_if_fail (seat != NULL, NULL);
219 return seat->priv->sessions;
223 set_greeter_idle (gpointer greeter)
225 greeter_idle (GREETER (greeter));
230 seat_set_active_session (Seat *seat, Session *session)
234 g_return_if_fail (seat != NULL);
236 SEAT_GET_CLASS (seat)->set_active_session (seat, session);
238 /* Stop any greeters */
239 for (link = seat->priv->sessions; link; link = link->next)
241 Session *s = link->data;
243 if (s == session || session_get_is_stopping (s))
246 if (IS_GREETER_SESSION (s))
248 Greeter *greeter = greeter_session_get_greeter (GREETER_SESSION (s));
249 if (greeter_get_resettable (greeter))
251 if (seat->priv->active_session == s)
253 l_debug (seat, "Idling greeter");
254 /* Do this in an idle callback, because we might very well
255 be in the middle of responding to a START_SESSION
256 request by a greeter. So they won't expect an IDLE
257 call during that. Plus, this isn't time-sensitive. */
258 g_idle_add (set_greeter_idle, greeter);
263 l_debug (seat, "Stopping greeter");
269 /* Lock previous sessions */
270 if (seat->priv->active_session && session != seat->priv->active_session && !IS_GREETER_SESSION (seat->priv->active_session))
271 session_lock (seat->priv->active_session);
273 session_activate (session);
274 g_clear_object (&seat->priv->active_session);
275 seat->priv->active_session = g_object_ref (session);
279 seat_get_active_session (Seat *seat)
281 g_return_val_if_fail (seat != NULL, NULL);
282 return SEAT_GET_CLASS (seat)->get_active_session (seat);
286 seat_get_next_session (Seat *seat)
288 g_return_val_if_fail (seat != NULL, NULL);
289 return seat->priv->next_session;
293 * Obtains the active session which lightdm expects to be active.
295 * This function is different from seat_get_active_session() in that the
296 * later (in the case of xlocal seats) dynamically finds the session that is
297 * really active (based on the active VT), whereas this function returns the
298 * session that lightdm activated last by itself, which may not be the actual
299 * active session (i.e. VT changes).
302 seat_get_expected_active_session (Seat *seat)
304 g_return_val_if_fail (seat != NULL, NULL);
305 return seat->priv->active_session;
309 * Sets the active session which lightdm expects to be active.
311 * This function is different from seat_set_active_session() in that the
312 * later performs an actual session activation, whereas this function just
313 * updates the active session after the session has been activated by some
314 * means external to lightdm (i.e. VT changes).
317 seat_set_externally_activated_session (Seat *seat, Session *session)
319 g_return_if_fail (seat != NULL);
320 g_clear_object (&seat->priv->active_session);
321 seat->priv->active_session = g_object_ref (session);
325 seat_find_session_by_login1_id (Seat *seat, const gchar *login1_session_id)
329 for (session_link = seat->priv->sessions; session_link; session_link = session_link->next)
331 Session *session = session_link->data;
332 if (g_strcmp0 (login1_session_id, session_get_login1_session_id (session)) == 0)
340 seat_get_can_switch (Seat *seat)
342 g_return_val_if_fail (seat != NULL, FALSE);
343 return seat_get_boolean_property (seat, "allow-user-switching") && seat->priv->supports_multi_session;
347 seat_get_allow_guest (Seat *seat)
349 g_return_val_if_fail (seat != NULL, FALSE);
350 return seat_get_boolean_property (seat, "allow-guest") && guest_account_is_installed ();
354 run_script (Seat *seat, DisplayServer *display_server, const gchar *script_name, User *user)
357 gboolean result = FALSE;
359 script = process_new (NULL, NULL);
361 process_set_command (script, script_name);
363 /* Set POSIX variables */
364 process_set_clear_environment (script, TRUE);
365 process_set_env (script, "SHELL", "/bin/sh");
367 /* Variables required for regression tests */
368 if (g_getenv ("LIGHTDM_TEST_ROOT"))
370 process_set_env (script, "LIGHTDM_TEST_ROOT", g_getenv ("LIGHTDM_TEST_ROOT"));
371 process_set_env (script, "LD_PRELOAD", g_getenv ("LD_PRELOAD"));
372 process_set_env (script, "LD_LIBRARY_PATH", g_getenv ("LD_LIBRARY_PATH"));
373 process_set_env (script, "PATH", g_getenv ("PATH"));
376 process_set_env (script, "PATH", "/usr/local/bin:/usr/bin:/bin");
380 process_set_env (script, "USER", user_get_name (user));
381 process_set_env (script, "LOGNAME", user_get_name (user));
382 process_set_env (script, "HOME", user_get_home_directory (user));
385 process_set_env (script, "HOME", "/");
387 SEAT_GET_CLASS (seat)->run_script (seat, display_server, script);
389 if (process_start (script, TRUE))
393 exit_status = process_get_exit_status (script);
394 if (WIFEXITED (exit_status))
396 l_debug (seat, "Exit status of %s: %d", script_name, WEXITSTATUS (exit_status));
397 result = WEXITSTATUS (exit_status) == EXIT_SUCCESS;
401 g_object_unref (script);
407 seat_real_run_script (Seat *seat, DisplayServer *display_server, Process *process)
412 emit_upstart_signal (const gchar *signal)
414 g_return_if_fail (signal != NULL);
415 g_return_if_fail (signal[0] != 0);
421 /* OK if it fails, probably not installed or not running upstart */
422 p = g_subprocess_new (G_SUBPROCESS_FLAGS_STDERR_SILENCE, NULL, "initctl", "-q", "emit", signal, "DISPLAY_MANAGER=lightdm", NULL);
427 check_stopped (Seat *seat)
429 if (seat->priv->stopping &&
430 !seat->priv->stopped &&
431 g_list_length (seat->priv->display_servers) == 0 &&
432 g_list_length (seat->priv->sessions) == 0)
434 seat->priv->stopped = TRUE;
435 l_debug (seat, "Stopped");
436 g_signal_emit (seat, signals[STOPPED], 0);
441 display_server_stopped_cb (DisplayServer *display_server, Seat *seat)
445 Session *active_session;
447 l_debug (seat, "Display server stopped");
449 /* Run a script right after stopping the display server */
450 script = seat_get_string_property (seat, "display-stopped-script");
452 run_script (seat, NULL, script, NULL);
454 g_signal_handlers_disconnect_matched (display_server, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, seat);
455 seat->priv->display_servers = g_list_remove (seat->priv->display_servers, display_server);
457 if (seat->priv->stopping || !seat->priv->started)
459 check_stopped (seat);
460 g_object_unref (display_server);
464 /* Stop all sessions on this display server */
465 list = g_list_copy (seat->priv->sessions);
466 for (link = list; link; link = link->next)
467 g_object_ref (link->data);
468 for (link = list; link; link = link->next)
470 Session *session = link->data;
472 if (session_get_display_server (session) != display_server || session_get_is_stopping (session))
475 /* Stop seat if this is the only display server and it failed to start a greeter */
476 if (IS_GREETER_SESSION (session) &&
477 !session_get_is_started (session) &&
478 g_list_length (seat->priv->display_servers) == 0)
480 l_debug (seat, "Stopping; greeter display server failed to start");
484 l_debug (seat, "Stopping session");
485 session_stop (session);
487 g_list_free_full (list, g_object_unref);
489 if (!seat->priv->stopping)
491 /* If we were the active session, switch to a greeter */
492 active_session = seat_get_active_session (seat);
493 if (!active_session || session_get_display_server (active_session) == display_server)
495 l_debug (seat, "Active display server stopped, starting greeter");
496 if (!seat_switch_to_greeter (seat))
498 l_debug (seat, "Stopping; failed to start a greeter");
504 g_object_unref (display_server);
508 can_share_display_server (Seat *seat, DisplayServer *display_server)
510 return seat->priv->share_display_server && display_server_get_can_share (display_server);
513 static GreeterSession *
514 find_greeter_session (Seat *seat)
518 for (link = seat->priv->sessions; link; link = link->next)
520 Session *session = link->data;
521 if (!session_get_is_stopping (session) && IS_GREETER_SESSION (session))
522 return GREETER_SESSION (session);
528 static GreeterSession *
529 find_resettable_greeter (Seat *seat)
533 for (link = seat->priv->sessions; link; link = link->next)
535 Session *session = link->data;
536 if (!session_get_is_stopping (session) && IS_GREETER_SESSION (session) &&
537 greeter_get_resettable (greeter_session_get_greeter (GREETER_SESSION (session))))
538 return GREETER_SESSION (session);
545 set_greeter_hints (Seat *seat, Greeter *greeter)
547 greeter_clear_hints (greeter);
548 greeter_set_hint (greeter, "default-session", seat_get_string_property (seat, "user-session"));
549 greeter_set_hint (greeter, "hide-users", seat_get_boolean_property (seat, "greeter-hide-users") ? "true" : "false");
550 greeter_set_hint (greeter, "show-manual-login", seat_get_boolean_property (seat, "greeter-show-manual-login") ? "true" : "false");
551 greeter_set_hint (greeter, "show-remote-login", seat_get_boolean_property (seat, "greeter-show-remote-login") ? "true" : "false");
552 greeter_set_hint (greeter, "has-guest-account", seat_get_allow_guest (seat) && seat_get_boolean_property (seat, "greeter-allow-guest") ? "true" : "false");
556 switch_to_greeter_from_failed_session (Seat *seat, Session *session)
558 GreeterSession *greeter_session;
560 gboolean existing = FALSE;
562 /* Switch to greeter if one open */
563 greeter_session = find_resettable_greeter (seat);
566 l_debug (seat, "Switching to existing greeter");
567 set_greeter_hints (seat, greeter_session_get_greeter (greeter_session));
572 greeter_session = create_greeter_session (seat);
574 greeter = greeter_session_get_greeter (greeter_session);
576 if (session_get_is_guest (session))
577 greeter_set_hint (greeter, "select-guest", "true");
579 greeter_set_hint (greeter, "select-user", session_get_username (session));
583 greeter_reset (greeter);
584 seat_set_active_session (seat, SESSION (greeter_session));
588 g_clear_object (&seat->priv->session_to_activate);
589 seat->priv->session_to_activate = g_object_ref (greeter_session);
591 if (can_share_display_server (seat, session_get_display_server (session)))
592 session_set_display_server (SESSION (greeter_session), session_get_display_server (session));
595 DisplayServer *display_server;
597 display_server = create_display_server (seat, session);
598 session_set_display_server (session, display_server);
599 if (!display_server_start (display_server))
601 l_debug (seat, "Failed to start display server for greeter");
606 start_session (seat, SESSION (greeter_session));
609 /* Stop failed session */
610 session_stop (session);
614 start_session (Seat *seat, Session *session)
616 /* Use system location for greeter log file */
617 if (IS_GREETER_SESSION (session))
619 gchar *log_dir, *filename, *log_filename;
620 gboolean backup_logs;
622 log_dir = config_get_string (config_get_instance (), "LightDM", "log-directory");
623 filename = g_strdup_printf ("%s-greeter.log", display_server_get_name (session_get_display_server (session)));
624 log_filename = g_build_filename (log_dir, filename, NULL);
627 backup_logs = config_get_boolean (config_get_instance (), "LightDM", "backup-logs");
628 session_set_log_file (session, log_filename, backup_logs ? LOG_MODE_BACKUP_AND_TRUNCATE : LOG_MODE_APPEND);
629 g_free (log_filename);
632 if (session_start (session))
635 if (IS_GREETER_SESSION (session))
637 l_debug (seat, "Failed to start greeter");
638 display_server_stop (session_get_display_server (session));
642 l_debug (seat, "Failed to start session, starting greeter");
643 switch_to_greeter_from_failed_session (seat, session);
647 run_session (Seat *seat, Session *session)
651 if (IS_GREETER_SESSION (session))
652 script = seat_get_string_property (seat, "greeter-setup-script");
654 script = seat_get_string_property (seat, "session-setup-script");
655 if (script && !run_script (seat, session_get_display_server (session), script, session_get_user (session)))
657 l_debug (seat, "Switching to greeter due to failed setup script");
658 switch_to_greeter_from_failed_session (seat, session);
662 if (!IS_GREETER_SESSION (session))
664 g_signal_emit (seat, signals[RUNNING_USER_SESSION], 0, session);
665 emit_upstart_signal ("desktop-session-start");
668 session_run (session);
670 // FIXME: Wait until the session is ready
672 if (session == seat->priv->session_to_activate)
674 seat_set_active_session (seat, session);
675 g_clear_object (&seat->priv->session_to_activate);
677 else if (seat->priv->active_session)
679 /* Multiple sessions can theoretically be on the same VT (especially
680 if using Mir). If a new session appears on an existing active VT,
681 logind will mark it as active, while ConsoleKit will re-mark the
682 oldest session as active. In either case, that may not be the
683 session that we want to be active. So let's be explicit and
684 re-activate the correct session whenever a new session starts.
685 There's no harm to do this in seats that enforce separate VTs. */
686 session_activate (seat->priv->active_session);
691 find_user_session (Seat *seat, const gchar *username, Session *ignore_session)
698 for (link = seat->priv->sessions; link; link = link->next)
700 Session *session = link->data;
702 if (session == ignore_session)
705 if (!session_get_is_stopping (session) && g_strcmp0 (session_get_username (session), username) == 0)
713 greeter_active_username_changed_cb (Greeter *greeter, GParamSpec *pspec, Seat *seat)
717 session = find_user_session (seat, greeter_get_active_username (greeter), seat->priv->active_session);
719 g_clear_object (&seat->priv->next_session);
720 seat->priv->next_session = session ? g_object_ref (session) : NULL;
722 SEAT_GET_CLASS (seat)->set_next_session (seat, session);
726 session_authentication_complete_cb (Session *session, Seat *seat)
728 if (session_get_is_authenticated (session))
732 s = find_user_session (seat, session_get_username (session), session);
735 l_debug (seat, "Session authenticated, switching to existing user session");
736 seat_set_active_session (seat, s);
737 session_stop (session);
741 l_debug (seat, "Session authenticated, running command");
742 run_session (seat, session);
745 else if (!IS_GREETER_SESSION (session))
747 l_debug (seat, "Switching to greeter due to failed authentication");
748 switch_to_greeter_from_failed_session (seat, session);
752 l_debug (seat, "Stopping session that failed authentication");
753 session_stop (session);
758 session_stopped_cb (Session *session, Seat *seat)
760 DisplayServer *display_server;
762 l_debug (seat, "Session stopped");
764 g_signal_handlers_disconnect_matched (session, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, seat);
765 seat->priv->sessions = g_list_remove (seat->priv->sessions, session);
766 if (session == seat->priv->active_session)
767 g_clear_object (&seat->priv->active_session);
768 if (session == seat->priv->next_session)
769 g_clear_object (&seat->priv->next_session);
770 if (session == seat->priv->session_to_activate)
771 g_clear_object (&seat->priv->session_to_activate);
773 display_server = session_get_display_server (session);
776 g_object_unref (session);
781 if (!IS_GREETER_SESSION (session))
784 script = seat_get_string_property (seat, "session-cleanup-script");
786 run_script (seat, display_server, script, session_get_user (session));
789 /* We were waiting for this session, but it didn't start :( */
790 // FIXME: Start a greeter on this?
791 if (session == seat->priv->session_to_activate)
792 g_clear_object (&seat->priv->session_to_activate);
794 if (seat->priv->stopping)
796 check_stopped (seat);
797 g_object_unref (session);
801 /* If there is a pending replacement greeter, start it */
802 if (IS_GREETER_SESSION (session) && seat->priv->replacement_greeter)
804 GreeterSession *replacement_greeter = seat->priv->replacement_greeter;
805 seat->priv->replacement_greeter = NULL;
807 if (session_get_is_authenticated (SESSION (replacement_greeter)))
809 l_debug (seat, "Greeter stopped, running session");
810 run_session (seat, SESSION (replacement_greeter));
814 l_debug (seat, "Greeter stopped, starting session authentication");
815 start_session (seat, SESSION (replacement_greeter));
818 g_object_unref (replacement_greeter);
820 /* If this is the greeter session then re-use this display server */
821 else if (IS_GREETER_SESSION (session) &&
822 can_share_display_server (seat, display_server) &&
823 greeter_get_start_session (greeter_session_get_greeter (GREETER_SESSION (session))))
827 for (link = seat->priv->sessions; link; link = link->next)
829 Session *s = link->data;
831 /* Skip this session and sessions on other display servers */
832 if (s == session || session_get_display_server (s) != display_server || session_get_is_stopping (s))
835 if (session_get_is_authenticated (s))
837 l_debug (seat, "Greeter stopped, running session");
838 run_session (seat, s);
842 l_debug (seat, "Greeter stopped, starting session authentication");
843 start_session (seat, s);
848 /* If this is the greeter and nothing else is running then stop the seat */
849 else if (IS_GREETER_SESSION (session) &&
850 !greeter_get_start_session (greeter_session_get_greeter (GREETER_SESSION (session))) &&
851 g_list_length (seat->priv->display_servers) == 1 &&
852 g_list_nth_data (seat->priv->display_servers, 0) == display_server)
854 l_debug (seat, "Stopping; failed to start a greeter");
857 /* If we were the active session, switch to a greeter */
858 else if (!IS_GREETER_SESSION (session) && session == seat_get_active_session (seat))
860 l_debug (seat, "Active session stopped, starting greeter");
861 if (!seat_switch_to_greeter (seat))
863 l_debug (seat, "Stopping; failed to start a greeter");
868 /* Stop the display server if no-longer required */
869 if (display_server && !display_server_get_is_stopping (display_server))
874 for (link = seat->priv->sessions; link; link = link->next)
876 Session *s = link->data;
879 if (session_get_display_server (s) == display_server)
884 l_debug (seat, "Stopping display server, no sessions require it");
885 display_server_stop (display_server);
889 g_signal_emit (seat, signals[SESSION_REMOVED], 0, session);
890 g_object_unref (session);
894 set_session_env (Session *session)
896 /* Connect using the session bus */
899 if (g_getenv ("DBUS_SESSION_BUS_ADDRESS"))
900 session_set_env (session, "DBUS_SESSION_BUS_ADDRESS", g_getenv ("DBUS_SESSION_BUS_ADDRESS"));
901 session_set_env (session, "LDM_BUS", "SESSION");
902 if (g_getenv ("LD_PRELOAD"))
903 session_set_env (session, "LD_PRELOAD", g_getenv ("LD_PRELOAD"));
904 if (g_getenv ("LD_LIBRARY_PATH"))
905 session_set_env (session, "LD_LIBRARY_PATH", g_getenv ("LD_LIBRARY_PATH"));
906 if (g_getenv ("PATH"))
907 session_set_env (session, "PATH", g_getenv ("PATH"));
910 /* Variables required for regression tests */
911 if (g_getenv ("LIGHTDM_TEST_ROOT"))
913 session_set_env (session, "LIGHTDM_TEST_ROOT", g_getenv ("LIGHTDM_TEST_ROOT"));
914 session_set_env (session, "DBUS_SYSTEM_BUS_ADDRESS", g_getenv ("DBUS_SYSTEM_BUS_ADDRESS"));
915 session_set_env (session, "DBUS_SESSION_BUS_ADDRESS", g_getenv ("DBUS_SESSION_BUS_ADDRESS"));
916 session_set_env (session, "LD_PRELOAD", g_getenv ("LD_PRELOAD"));
917 session_set_env (session, "LD_LIBRARY_PATH", g_getenv ("LD_LIBRARY_PATH"));
918 session_set_env (session, "GI_TYPELIB_PATH", g_getenv ("GI_TYPELIB_PATH"));
923 create_session (Seat *seat, gboolean autostart)
927 session = SEAT_GET_CLASS (seat)->create_session (seat);
928 seat->priv->sessions = g_list_append (seat->priv->sessions, session);
930 g_signal_connect (session, SESSION_SIGNAL_AUTHENTICATION_COMPLETE, G_CALLBACK (session_authentication_complete_cb), seat);
931 g_signal_connect (session, SESSION_SIGNAL_STOPPED, G_CALLBACK (session_stopped_cb), seat);
933 set_session_env (session);
935 g_signal_emit (seat, signals[SESSION_ADDED], 0, session);
941 get_session_argv (Seat *seat, SessionConfig *session_config, const gchar *session_wrapper)
946 GError *error = NULL;
948 /* If configured, run sessions through a wrapper */
951 argv = g_malloc (sizeof (gchar *) * 3);
952 path = g_find_program_in_path (session_wrapper);
953 argv[0] = path ? path : g_strdup (session_wrapper);
954 argv[1] = g_strdup (session_config_get_command (session_config));
959 /* Split command into an array listing and make command absolute */
960 result = g_shell_parse_argv (session_config_get_command (session_config), &argc, &argv, &error);
962 l_debug (seat, "Invalid session command '%s': %s", session_config_get_command (session_config), error->message);
963 g_clear_error (&error);
966 path = g_find_program_in_path (argv[0]);
976 static SessionConfig *
977 find_session_config (Seat *seat, const gchar *sessions_dir, const gchar *session_name)
980 SessionConfig *session_config = NULL;
982 GError *error = NULL;
984 g_return_val_if_fail (sessions_dir != NULL, NULL);
985 g_return_val_if_fail (session_name != NULL, NULL);
987 dirs = g_strsplit (sessions_dir, ":", -1);
988 for (i = 0; dirs[i]; i++)
990 gchar *filename, *path;
991 const gchar *default_session_type = "x";
993 if (strcmp (dirs[i], WAYLAND_SESSIONS_DIR) == 0)
994 default_session_type = "wayland";
996 filename = g_strdup_printf ("%s.desktop", session_name);
997 path = g_build_filename (dirs[i], filename, NULL);
999 session_config = session_config_new_from_file (path, default_session_type, &error);
1004 if (dirs[i+1] == NULL)
1005 l_debug (seat, "Failed to find session configuration %s", session_name);
1006 g_clear_error (&error);
1010 return session_config;
1014 configure_session (Session *session, SessionConfig *config, const gchar *session_name, const gchar *language)
1016 gchar **desktop_names;
1018 session_set_config (session, config);
1019 session_set_env (session, "XDG_SESSION_DESKTOP", session_name);
1020 session_set_env (session, "DESKTOP_SESSION", session_name);
1021 session_set_env (session, "GDMSESSION", session_name);
1022 desktop_names = session_config_get_desktop_names (config);
1026 value = g_strjoinv (":", desktop_names);
1027 session_set_env (session, "XDG_CURRENT_DESKTOP", value);
1030 if (language && language[0] != '\0')
1032 session_set_env (session, "LANG", language);
1033 session_set_env (session, "GDM_LANG", language);
1038 create_user_session (Seat *seat, const gchar *username, gboolean autostart)
1041 gchar *sessions_dir;
1042 const gchar *session_name, *language;
1043 SessionConfig *session_config;
1044 Session *session = NULL;
1046 l_debug (seat, "Creating user session");
1048 /* Load user preferences */
1049 user = accounts_get_user_by_name (username);
1052 l_debug (seat, "Can't login unknown user '%s'", username);
1055 session_name = user_get_xsession (user);
1056 language = user_get_language (user);
1058 /* Override session for autologin if configured */
1061 const gchar *autologin_session_name = seat_get_string_property (seat, "autologin-session");
1062 if (autologin_session_name)
1063 session_name = autologin_session_name;
1067 session_name = seat_get_string_property (seat, "user-session");
1068 sessions_dir = config_get_string (config_get_instance (), "LightDM", "sessions-directory");
1069 session_config = find_session_config (seat, sessions_dir, session_name);
1070 g_free (sessions_dir);
1075 session = create_session (seat, autostart);
1076 configure_session (session, session_config, session_name, language);
1077 session_set_username (session, username);
1078 session_set_do_authenticate (session, TRUE);
1079 argv = get_session_argv (seat, session_config, seat_get_string_property (seat, "session-wrapper"));
1080 session_set_argv (session, argv);
1082 g_object_unref (session_config);
1085 l_debug (seat, "Can't find session '%s'", session_name);
1087 g_object_unref (user);
1093 prepend_argv (gchar ***argv, const gchar *value)
1095 gchar **old_argv, **new_argv;
1099 new_argv = g_malloc (sizeof (gchar *) * (g_strv_length (*argv) + 2));
1100 new_argv[0] = g_strdup (value);
1101 for (i = 0; old_argv[i]; i++)
1102 new_argv[i + 1] = old_argv[i];
1103 new_argv[i + 1] = NULL;
1110 create_guest_session (Seat *seat, const gchar *session_name)
1112 const gchar *guest_wrapper;
1113 gchar *sessions_dir, **argv;
1114 SessionConfig *session_config;
1118 session_name = seat_get_string_property (seat, "guest-session");
1120 session_name = seat_get_string_property (seat, "user-session");
1121 sessions_dir = config_get_string (config_get_instance (), "LightDM", "sessions-directory");
1122 session_config = find_session_config (seat, sessions_dir, session_name);
1123 g_free (sessions_dir);
1124 if (!session_config)
1126 l_debug (seat, "Can't find session '%s'", session_name);
1130 session = create_session (seat, TRUE);
1131 configure_session (session, session_config, session_name, NULL);
1132 session_set_do_authenticate (session, TRUE);
1133 session_set_is_guest (session, TRUE);
1134 argv = get_session_argv (seat, session_config, seat_get_string_property (seat, "session-wrapper"));
1135 guest_wrapper = seat_get_string_property (seat, "guest-wrapper");
1139 path = g_find_program_in_path (guest_wrapper);
1140 prepend_argv (&argv, path ? path : guest_wrapper);
1144 session_set_argv (session, argv);
1146 g_object_unref (session_config);
1151 // FIXME: This is inefficient and we already know the greeter session when we set the callbacks...
1153 get_greeter_session (Seat *seat, Greeter *greeter)
1157 /* Stop any greeters */
1158 for (link = seat->priv->sessions; link; link = link->next)
1160 Session *session = link->data;
1162 if (IS_GREETER_SESSION (session) && greeter_session_get_greeter (GREETER_SESSION (session)))
1170 greeter_create_session_cb (Greeter *greeter, Seat *seat)
1172 Session *greeter_session, *session;
1174 greeter_session = get_greeter_session (seat, greeter);
1175 session = create_session (seat, FALSE);
1176 session_set_config (session, session_get_config (greeter_session));
1177 session_set_display_server (session, session_get_display_server (greeter_session));
1179 return g_object_ref (session);
1183 greeter_start_session_cb (Greeter *greeter, SessionType type, const gchar *session_name, Seat *seat)
1185 Session *session, *existing_session, *greeter_session;
1186 const gchar *username;
1187 DisplayServer *display_server;
1189 /* Get the session to use */
1190 if (greeter_get_guest_authenticated (greeter))
1192 session = create_guest_session (seat, session_name);
1195 session_set_pam_service (session, seat_get_string_property (seat, "pam-autologin-service"));
1199 const gchar *language = NULL;
1200 SessionConfig *session_config;
1202 gchar *sessions_dir = NULL;
1205 session = greeter_get_authentication_session (greeter);
1207 /* Get session command to run */
1210 case SESSION_TYPE_LOCAL:
1211 sessions_dir = config_get_string (config_get_instance (), "LightDM", "sessions-directory");
1213 case SESSION_TYPE_REMOTE:
1214 sessions_dir = config_get_string (config_get_instance (), "LightDM", "remote-sessions-directory");
1218 /* Load user preferences */
1219 user = session_get_user (session);
1223 session_name = user_get_xsession (user);
1224 language = user_get_language (user);
1228 session_name = seat_get_string_property (seat, "user-session");
1230 user_set_xsession (session_get_user (session), session_name);
1232 session_config = find_session_config (seat, sessions_dir, session_name);
1233 g_free (sessions_dir);
1234 if (!session_config)
1236 l_debug (seat, "Can't find session '%s'", session_name);
1240 configure_session (session, session_config, session_name, language);
1241 argv = get_session_argv (seat, session_config, seat_get_string_property (seat, "session-wrapper"));
1242 session_set_argv (session, argv);
1244 g_object_unref (session_config);
1247 /* Switch to this session when it is ready */
1248 g_clear_object (&seat->priv->session_to_activate);
1249 seat->priv->session_to_activate = g_object_ref (session);
1251 /* Return to existing session if it is open */
1252 username = session_get_username (session);
1253 existing_session = find_user_session (seat, username, NULL);
1254 if (existing_session && session != existing_session)
1256 l_debug (seat, "Returning to existing user session %s", username);
1257 session_stop (session);
1258 session_unlock (existing_session);
1259 seat_set_active_session (seat, existing_session);
1263 /* If can re-use the display server, stop the greeter first */
1264 greeter_session = get_greeter_session (seat, greeter);
1265 display_server = session_get_display_server (greeter_session);
1266 if (!greeter_get_resettable (greeter) &&
1267 can_share_display_server (seat, display_server) &&
1268 strcmp (display_server_get_session_type (display_server), session_get_session_type (session)) == 0)
1270 l_debug (seat, "Stopping greeter; display server will be re-used for user session");
1272 /* Run on the same display server after the greeter has stopped */
1273 session_set_display_server (session, display_server);
1275 /* Stop the greeter */
1276 session_stop (greeter_session);
1280 /* Otherwise start a new display server for this session */
1283 display_server = create_display_server (seat, session);
1284 session_set_display_server (session, display_server);
1285 if (!display_server_start (display_server))
1287 l_debug (seat, "Failed to start display server for new session");
1295 static GreeterSession *
1296 create_greeter_session (Seat *seat)
1298 gchar *sessions_dir, **argv;
1299 SessionConfig *session_config;
1300 GreeterSession *greeter_session;
1302 const gchar *greeter_wrapper;
1303 const gchar *autologin_username;
1304 int autologin_timeout;
1305 gboolean autologin_guest;
1307 l_debug (seat, "Creating greeter session");
1309 sessions_dir = config_get_string (config_get_instance (), "LightDM", "greeters-directory");
1310 session_config = find_session_config (seat, sessions_dir, seat_get_string_property (seat, "greeter-session"));
1311 g_free (sessions_dir);
1312 if (!session_config)
1315 argv = get_session_argv (seat, session_config, NULL);
1316 greeter_wrapper = seat_get_string_property (seat, "greeter-wrapper");
1317 if (greeter_wrapper)
1320 path = g_find_program_in_path (greeter_wrapper);
1321 prepend_argv (&argv, path ? path : greeter_wrapper);
1325 greeter_session = SEAT_GET_CLASS (seat)->create_greeter_session (seat);
1326 greeter = greeter_session_get_greeter (greeter_session);
1327 session_set_config (SESSION (greeter_session), session_config);
1328 seat->priv->sessions = g_list_append (seat->priv->sessions, SESSION (greeter_session));
1329 g_signal_connect (greeter, GREETER_SIGNAL_ACTIVE_USERNAME_CHANGED, G_CALLBACK (greeter_active_username_changed_cb), seat);
1330 g_signal_connect (greeter_session, SESSION_SIGNAL_AUTHENTICATION_COMPLETE, G_CALLBACK (session_authentication_complete_cb), seat);
1331 g_signal_connect (greeter_session, SESSION_SIGNAL_STOPPED, G_CALLBACK (session_stopped_cb), seat);
1333 set_session_env (SESSION (greeter_session));
1334 session_set_env (SESSION (greeter_session), "XDG_SESSION_CLASS", "greeter");
1336 session_set_pam_service (SESSION (greeter_session), seat_get_string_property (seat, "pam-greeter-service"));
1339 gchar *greeter_user;
1340 greeter_user = config_get_string (config_get_instance (), "LightDM", "greeter-user");
1341 session_set_username (SESSION (greeter_session), greeter_user);
1342 g_free (greeter_user);
1346 /* In test mode run the greeter as ourself */
1347 session_set_username (SESSION (greeter_session), user_get_name (accounts_get_current_user ()));
1349 session_set_argv (SESSION (greeter_session), argv);
1352 greeter_set_pam_services (greeter,
1353 seat_get_string_property (seat, "pam-service"),
1354 seat_get_string_property (seat, "pam-autologin-service"));
1355 g_signal_connect (greeter, GREETER_SIGNAL_CREATE_SESSION, G_CALLBACK (greeter_create_session_cb), seat);
1356 g_signal_connect (greeter, GREETER_SIGNAL_START_SESSION, G_CALLBACK (greeter_start_session_cb), seat);
1358 /* Set hints to greeter */
1359 greeter_set_allow_guest (greeter, seat_get_allow_guest (seat));
1360 set_greeter_hints (seat, greeter);
1362 /* Configure for automatic login */
1363 autologin_username = seat_get_string_property (seat, "autologin-user");
1364 if (g_strcmp0 (autologin_username, "") == 0)
1365 autologin_username = NULL;
1366 autologin_timeout = seat_get_integer_property (seat, "autologin-user-timeout");
1367 autologin_guest = seat_get_boolean_property (seat, "autologin-guest");
1368 if (autologin_timeout > 0)
1372 value = g_strdup_printf ("%d", autologin_timeout);
1373 greeter_set_hint (greeter, "autologin-timeout", value);
1375 if (autologin_username)
1376 greeter_set_hint (greeter, "autologin-user", autologin_username);
1377 if (autologin_guest)
1378 greeter_set_hint (greeter, "autologin-guest", "true");
1381 g_object_unref (session_config);
1383 return greeter_session;
1387 find_session_for_display_server (Seat *seat, DisplayServer *display_server)
1391 for (link = seat->priv->sessions; link; link = link->next)
1393 Session *session = link->data;
1394 if (session_get_display_server (session) == display_server && !session_get_is_stopping (session))
1402 display_server_ready_cb (DisplayServer *display_server, Seat *seat)
1404 const gchar *script;
1407 /* Run setup script */
1408 script = seat_get_string_property (seat, "display-setup-script");
1409 if (script && !run_script (seat, display_server, script, NULL))
1411 l_debug (seat, "Stopping display server due to failed setup script");
1412 display_server_stop (display_server);
1416 emit_upstart_signal ("login-session-start");
1418 /* Start the session waiting for this display server */
1419 session = find_session_for_display_server (seat, display_server);
1422 if (session_get_is_authenticated (session))
1424 l_debug (seat, "Display server ready, running session");
1425 run_session (seat, session);
1429 l_debug (seat, "Display server ready, starting session authentication");
1430 start_session (seat, session);
1435 l_debug (seat, "Stopping not required display server");
1436 display_server_stop (display_server);
1440 static DisplayServer *
1441 create_display_server (Seat *seat, Session *session)
1443 DisplayServer *display_server;
1445 l_debug (seat, "Creating display server of type %s", session_get_session_type (session));
1447 display_server = SEAT_GET_CLASS (seat)->create_display_server (seat, session);
1448 if (!display_server)
1451 seat->priv->display_servers = g_list_append (seat->priv->display_servers, display_server);
1452 g_signal_connect (display_server, DISPLAY_SERVER_SIGNAL_READY, G_CALLBACK (display_server_ready_cb), seat);
1453 g_signal_connect (display_server, DISPLAY_SERVER_SIGNAL_STOPPED, G_CALLBACK (display_server_stopped_cb), seat);
1455 return display_server;
1459 seat_switch_to_greeter (Seat *seat)
1461 GreeterSession *greeter_session;
1462 DisplayServer *display_server;
1464 g_return_val_if_fail (seat != NULL, FALSE);
1466 if (!seat_get_can_switch (seat))
1469 /* Switch to greeter if one open */
1470 greeter_session = find_greeter_session (seat);
1471 if (greeter_session)
1473 l_debug (seat, "Switching to existing greeter");
1474 seat_set_active_session (seat, SESSION (greeter_session));
1478 greeter_session = create_greeter_session (seat);
1479 if (!greeter_session)
1482 g_clear_object (&seat->priv->session_to_activate);
1483 seat->priv->session_to_activate = g_object_ref (greeter_session);
1485 display_server = create_display_server (seat, SESSION (greeter_session));
1486 session_set_display_server (SESSION (greeter_session), display_server);
1488 return display_server_start (display_server);
1492 switch_authentication_complete_cb (Session *session, Seat *seat)
1494 GreeterSession *greeter_session;
1496 DisplayServer *display_server;
1497 gboolean existing = FALSE;
1499 /* If authenticated, then unlock existing session or start new one */
1500 if (session_get_is_authenticated (session))
1504 s = find_user_session (seat, session_get_username (session), session);
1507 l_debug (seat, "Session authenticated, switching to existing user session");
1509 seat_set_active_session (seat, s);
1510 session_stop (session);
1514 l_debug (seat, "Session authenticated, starting display server");
1515 g_clear_object (&seat->priv->session_to_activate);
1516 seat->priv->session_to_activate = g_object_ref (session);
1517 display_server = create_display_server (seat, session);
1518 session_set_display_server (session, display_server);
1519 display_server_start (display_server);
1525 session_stop (session);
1527 /* See if we already have a greeter up and reuse it if so */
1528 greeter_session = find_resettable_greeter (seat);
1529 if (greeter_session)
1531 l_debug (seat, "Switching to existing greeter to authenticate session");
1532 set_greeter_hints (seat, greeter_session_get_greeter (greeter_session));
1537 l_debug (seat, "Starting greeter to authenticate session");
1538 greeter_session = create_greeter_session (seat);
1540 greeter = greeter_session_get_greeter (greeter_session);
1542 if (session_get_is_guest (session))
1543 greeter_set_hint (greeter, "select-guest", "true");
1545 greeter_set_hint (greeter, "select-user", session_get_username (session));
1549 greeter_reset (greeter);
1550 seat_set_active_session (seat, SESSION (greeter_session));
1554 g_clear_object (&seat->priv->session_to_activate);
1555 seat->priv->session_to_activate = g_object_ref (greeter_session);
1557 display_server = create_display_server (seat, SESSION (greeter_session));
1558 session_set_display_server (SESSION (greeter_session), display_server);
1559 display_server_start (display_server);
1564 seat_switch_to_user (Seat *seat, const gchar *username, const gchar *session_name)
1568 g_return_val_if_fail (seat != NULL, FALSE);
1569 g_return_val_if_fail (username != NULL, FALSE);
1571 if (!seat_get_can_switch (seat))
1574 /* If we're already on this session, then ignore */
1575 session = find_user_session (seat, username, NULL);
1576 if (session && session == seat->priv->active_session)
1579 l_debug (seat, "Switching to user %s", username);
1581 /* Attempt to authenticate them */
1582 session = create_user_session (seat, username, FALSE);
1583 g_signal_connect (session, SESSION_SIGNAL_AUTHENTICATION_COMPLETE, G_CALLBACK (switch_authentication_complete_cb), seat);
1584 session_set_pam_service (session, seat_get_string_property (seat, "pam-service"));
1586 return session_start (session);
1590 find_guest_session (Seat *seat)
1594 for (link = seat->priv->sessions; link; link = link->next)
1596 Session *session = link->data;
1597 if (!session_get_is_stopping (session) && session_get_is_guest (session))
1605 seat_switch_to_guest (Seat *seat, const gchar *session_name)
1608 DisplayServer *display_server;
1610 g_return_val_if_fail (seat != NULL, FALSE);
1612 if (!seat_get_can_switch (seat) || !seat_get_allow_guest (seat))
1615 /* Switch to session if one open */
1616 session = find_guest_session (seat);
1619 l_debug (seat, "Switching to existing guest account %s", session_get_username (session));
1620 seat_set_active_session (seat, session);
1624 session = create_guest_session (seat, session_name);
1628 display_server = create_display_server (seat, session);
1630 g_clear_object (&seat->priv->session_to_activate);
1631 seat->priv->session_to_activate = g_object_ref (session);
1632 session_set_pam_service (session, seat_get_string_property (seat, "pam-autologin-service"));
1633 session_set_display_server (session, display_server);
1635 return display_server_start (display_server);
1639 seat_lock (Seat *seat, const gchar *username)
1641 GreeterSession *greeter_session;
1643 DisplayServer *display_server = NULL;
1644 gboolean reset_existing = FALSE;
1645 gboolean reuse_xserver = FALSE;
1647 g_return_val_if_fail (seat != NULL, FALSE);
1649 if (!seat_get_can_switch (seat))
1652 // FIXME: If already locked then don't bother...
1654 l_debug (seat, "Locking");
1656 /* Switch to greeter we can reuse */
1657 greeter_session = find_resettable_greeter (seat);
1658 if (greeter_session)
1660 l_debug (seat, "Switching to existing greeter");
1661 set_greeter_hints (seat, greeter_session_get_greeter (greeter_session));
1662 reset_existing = TRUE;
1666 /* If the existing greeter can't be reused, stop it and reuse its display server */
1667 greeter_session = find_greeter_session (seat);
1668 if (greeter_session)
1670 display_server = session_get_display_server (SESSION (greeter_session));
1671 if (!session_get_is_stopping (SESSION (greeter_session)))
1673 l_debug (seat, "Stopping session");
1674 session_stop (SESSION (greeter_session));
1676 reuse_xserver = TRUE;
1679 greeter_session = create_greeter_session (seat);
1680 if (!greeter_session)
1683 greeter = greeter_session_get_greeter (greeter_session);
1685 greeter_set_hint (greeter, "lock-screen", "true");
1687 greeter_set_hint (greeter, "select-user", username);
1691 greeter_reset (greeter);
1692 seat_set_active_session (seat, SESSION (greeter_session));
1698 display_server = create_display_server (seat, SESSION (greeter_session));
1699 session_set_display_server (SESSION (greeter_session), display_server);
1701 g_clear_object (&seat->priv->session_to_activate);
1702 seat->priv->session_to_activate = g_object_ref (greeter_session);
1706 g_clear_object (&seat->priv->replacement_greeter);
1707 seat->priv->replacement_greeter = g_object_ref (greeter_session);
1711 return display_server_start (display_server);
1716 seat_stop (Seat *seat)
1718 g_return_if_fail (seat != NULL);
1720 if (seat->priv->stopping)
1723 l_debug (seat, "Stopping");
1724 seat->priv->stopping = TRUE;
1725 SEAT_GET_CLASS (seat)->stop (seat);
1729 seat_get_is_stopping (Seat *seat)
1731 g_return_val_if_fail (seat != NULL, FALSE);
1732 return seat->priv->stopping;
1736 seat_real_setup (Seat *seat)
1741 seat_real_start (Seat *seat)
1743 const gchar *autologin_username;
1744 int autologin_timeout;
1745 gboolean autologin_guest;
1746 gboolean autologin_in_background;
1747 Session *session = NULL, *background_session = NULL;
1749 /* Get autologin settings */
1750 autologin_username = seat_get_string_property (seat, "autologin-user");
1751 if (g_strcmp0 (autologin_username, "") == 0)
1752 autologin_username = NULL;
1753 autologin_timeout = seat_get_integer_property (seat, "autologin-user-timeout");
1754 autologin_guest = seat_get_boolean_property (seat, "autologin-guest");
1755 autologin_in_background = seat_get_boolean_property (seat, "autologin-in-background");
1757 /* Autologin if configured */
1758 if (autologin_timeout == 0 || autologin_in_background)
1760 if (autologin_guest)
1761 session = create_guest_session (seat, NULL);
1762 else if (autologin_username != NULL)
1763 session = create_user_session (seat, autologin_username, TRUE);
1766 session_set_pam_service (session, seat_get_string_property (seat, "pam-autologin-service"));
1768 /* Load in background if required */
1769 if (autologin_in_background && session)
1771 background_session = session;
1777 DisplayServer *display_server;
1779 g_clear_object (&seat->priv->session_to_activate);
1780 seat->priv->session_to_activate = g_object_ref (session);
1782 display_server = create_display_server (seat, session);
1783 session_set_display_server (session, display_server);
1784 if (!display_server || !display_server_start (display_server))
1786 l_debug (seat, "Can't create display server for automatic login");
1787 session_stop (session);
1789 display_server_stop (display_server);
1795 /* Fallback to a greeter */
1798 GreeterSession *greeter_session;
1799 DisplayServer *display_server;
1801 greeter_session = create_greeter_session (seat);
1802 if (!greeter_session)
1804 l_debug (seat, "Failed to create greeter session");
1808 g_clear_object (&seat->priv->session_to_activate);
1809 seat->priv->session_to_activate = g_object_ref (greeter_session);
1810 session = SESSION (greeter_session);
1812 display_server = create_display_server (seat, session);
1813 session_set_display_server (session, display_server);
1814 if (!display_server || !display_server_start (display_server))
1816 l_debug (seat, "Can't create display server for greeter");
1817 session_stop (session);
1819 display_server_stop (display_server);
1824 /* Fail if can't start a session */
1831 /* Start background session */
1832 if (background_session)
1834 DisplayServer *background_display_server;
1836 background_display_server = create_display_server (seat, background_session);
1837 session_set_display_server (background_session, background_display_server);
1838 if (!display_server_start (background_display_server))
1839 l_warning (seat, "Failed to start display server for background session");
1845 static GreeterSession *
1846 seat_real_create_greeter_session (Seat *seat)
1848 return greeter_session_new ();
1852 seat_real_create_session (Seat *seat)
1854 return session_new ();
1858 seat_real_set_active_session (Seat *seat, Session *session)
1863 seat_real_set_next_session (Seat *seat, Session *session)
1868 seat_real_get_active_session (Seat *seat)
1874 seat_real_stop (Seat *seat)
1878 check_stopped (seat);
1879 if (seat->priv->stopped)
1882 /* Stop all the display servers and sessions on the seat. Copy the list as
1883 * it might be modified if a display server / session stops during this loop */
1884 list = g_list_copy (seat->priv->display_servers);
1885 for (link = list; link; link = link->next)
1886 g_object_ref (link->data);
1887 for (link = list; link; link = link->next)
1889 DisplayServer *display_server = link->data;
1890 if (!display_server_get_is_stopping (display_server))
1892 l_debug (seat, "Stopping display server");
1893 display_server_stop (display_server);
1896 g_list_free_full (list, g_object_unref);
1897 list = g_list_copy (seat->priv->sessions);
1898 for (link = list; link; link = link->next)
1899 g_object_ref (link->data);
1900 for (link = list; link; link = link->next)
1902 Session *session = link->data;
1903 if (!session_get_is_stopping (session))
1905 l_debug (seat, "Stopping session");
1906 session_stop (session);
1909 g_list_free_full (list, g_object_unref);
1913 seat_init (Seat *seat)
1915 seat->priv = G_TYPE_INSTANCE_GET_PRIVATE (seat, SEAT_TYPE, SeatPrivate);
1916 seat->priv->properties = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
1917 seat->priv->share_display_server = TRUE;
1921 seat_finalize (GObject *object)
1923 Seat *self = SEAT (object);
1926 g_free (self->priv->name);
1927 g_hash_table_unref (self->priv->properties);
1928 for (link = self->priv->display_servers; link; link = link->next)
1930 DisplayServer *display_server = link->data;
1931 g_signal_handlers_disconnect_matched (display_server, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, self);
1933 g_list_free_full (self->priv->display_servers, g_object_unref);
1934 for (link = self->priv->sessions; link; link = link->next)
1936 Session *session = link->data;
1937 g_signal_handlers_disconnect_matched (session, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, self);
1939 g_list_free_full (self->priv->sessions, g_object_unref);
1940 g_clear_object (&self->priv->active_session);
1941 g_clear_object (&self->priv->next_session);
1942 g_clear_object (&self->priv->session_to_activate);
1943 g_clear_object (&self->priv->replacement_greeter);
1945 G_OBJECT_CLASS (seat_parent_class)->finalize (object);
1949 seat_class_init (SeatClass *klass)
1951 GObjectClass *object_class = G_OBJECT_CLASS (klass);
1953 klass->setup = seat_real_setup;
1954 klass->start = seat_real_start;
1955 klass->create_greeter_session = seat_real_create_greeter_session;
1956 klass->create_session = seat_real_create_session;
1957 klass->set_active_session = seat_real_set_active_session;
1958 klass->get_active_session = seat_real_get_active_session;
1959 klass->set_next_session = seat_real_set_next_session;
1960 klass->run_script = seat_real_run_script;
1961 klass->stop = seat_real_stop;
1963 object_class->finalize = seat_finalize;
1965 g_type_class_add_private (klass, sizeof (SeatPrivate));
1967 signals[SESSION_ADDED] =
1968 g_signal_new (SEAT_SIGNAL_SESSION_ADDED,
1969 G_TYPE_FROM_CLASS (klass),
1971 G_STRUCT_OFFSET (SeatClass, session_added),
1974 G_TYPE_NONE, 1, SESSION_TYPE);
1975 signals[RUNNING_USER_SESSION] =
1976 g_signal_new (SEAT_SIGNAL_RUNNING_USER_SESSION,
1977 G_TYPE_FROM_CLASS (klass),
1979 G_STRUCT_OFFSET (SeatClass, running_user_session),
1982 G_TYPE_NONE, 1, SESSION_TYPE);
1983 signals[SESSION_REMOVED] =
1984 g_signal_new (SEAT_SIGNAL_SESSION_REMOVED,
1985 G_TYPE_FROM_CLASS (klass),
1987 G_STRUCT_OFFSET (SeatClass, session_removed),
1990 G_TYPE_NONE, 1, SESSION_TYPE);
1992 g_signal_new (SEAT_SIGNAL_STOPPED,
1993 G_TYPE_FROM_CLASS (klass),
1995 G_STRUCT_OFFSET (SeatClass, stopped),
2002 seat_real_logprefix (Logger *self, gchar *buf, gulong buflen)
2004 return g_snprintf (buf, buflen, "Seat %s: ", SEAT (self)->priv->name);
2008 seat_logger_iface_init (LoggerInterface *iface)
2010 iface->logprefix = &seat_real_logprefix;