2 * Copyright (C) 2010 Robert Ancell.
3 * Author: Robert Ancell <robert.ancell@canonical.com>
5 * This library is free software; you can redistribute it and/or modify it under
6 * the terms of the GNU Lesser General Public License as published by the Free
7 * Software Foundation; either version 2 or version 3 of the License.
8 * See http://www.gnu.org/copyleft/lgpl.html the full text of the license.
15 #include <security/pam_appl.h>
17 #include "lightdm/greeter.h"
21 PROP_DEFAULT_SESSION_HINT,
23 PROP_SHOW_MANUAL_LOGIN_HINT,
24 PROP_SHOW_REMOTE_LOGIN_HINT,
26 PROP_HAS_GUEST_ACCOUNT_HINT,
27 PROP_SELECT_USER_HINT,
28 PROP_SELECT_GUEST_HINT,
29 PROP_AUTOLOGIN_USER_HINT,
30 PROP_AUTOLOGIN_GUEST_HINT,
31 PROP_AUTOLOGIN_TIMEOUT_HINT,
32 PROP_AUTHENTICATION_USER,
33 PROP_IN_AUTHENTICATION,
34 PROP_IS_AUTHENTICATED,
40 AUTHENTICATION_COMPLETE,
41 AUTOLOGIN_TIMER_EXPIRED,
46 static guint signals[LAST_SIGNAL] = { 0 };
50 /* TRUE if the daemon can reuse this greeter */
53 /* Channel to write to daemon */
54 GIOChannel *to_server_channel;
56 /* Channel to read from daemon */
57 GIOChannel *from_server_channel;
59 /* Data read from the daemon */
63 gsize n_responses_waiting;
64 GList *responses_received;
66 /* TRUE if have got a connect response */
69 /* Pending connect requests */
70 GList *connect_requests;
72 /* Pending start session requests */
73 GList *start_session_requests;
75 /* Pending ensure shared data dir requests */
76 GList *ensure_shared_data_dir_requests;
78 /* Hints provided by the daemon */
81 /* Timeout source to notify greeter to autologin */
82 guint autologin_timeout;
84 gchar *authentication_user;
85 gboolean in_authentication;
86 gboolean is_authenticated;
87 guint32 authenticate_sequence_number;
88 gboolean cancelling_authentication;
89 } LightDMGreeterPrivate;
91 G_DEFINE_TYPE (LightDMGreeter, lightdm_greeter, G_TYPE_OBJECT);
93 #define GET_PRIVATE(obj) G_TYPE_INSTANCE_GET_PRIVATE ((obj), LIGHTDM_TYPE_GREETER, LightDMGreeterPrivate)
96 #define MAX_MESSAGE_LENGTH 1024
98 /* Messages from the greeter to the server */
101 GREETER_MESSAGE_CONNECT = 0,
102 GREETER_MESSAGE_AUTHENTICATE,
103 GREETER_MESSAGE_AUTHENTICATE_AS_GUEST,
104 GREETER_MESSAGE_CONTINUE_AUTHENTICATION,
105 GREETER_MESSAGE_START_SESSION,
106 GREETER_MESSAGE_CANCEL_AUTHENTICATION,
107 GREETER_MESSAGE_SET_LANGUAGE,
108 GREETER_MESSAGE_AUTHENTICATE_REMOTE,
109 GREETER_MESSAGE_ENSURE_SHARED_DIR,
112 /* Messages from the server to the greeter */
115 SERVER_MESSAGE_CONNECTED = 0,
116 SERVER_MESSAGE_PROMPT_AUTHENTICATION,
117 SERVER_MESSAGE_END_AUTHENTICATION,
118 SERVER_MESSAGE_SESSION_RESULT,
119 SERVER_MESSAGE_SHARED_DIR_RESULT,
121 SERVER_MESSAGE_RESET,
124 /* Request sent to server */
127 GObject parent_instance;
128 GCancellable *cancellable;
129 GAsyncReadyCallback callback;
137 GObjectClass parent_class;
139 GType request_get_type (void);
140 static void request_iface_init (GAsyncResultIface *iface);
141 #define REQUEST(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), request_get_type (), Request))
142 G_DEFINE_TYPE_WITH_CODE (Request, request, G_TYPE_OBJECT, G_IMPLEMENT_INTERFACE (G_TYPE_ASYNC_RESULT, request_iface_init));
145 lightdm_prompt_type_get_type (void)
147 static GType enum_type = 0;
149 if (G_UNLIKELY(enum_type == 0)) {
150 static const GEnumValue values[] = {
151 { LIGHTDM_PROMPT_TYPE_QUESTION, "LIGHTDM_PROMPT_TYPE_QUESTION", "question" },
152 { LIGHTDM_PROMPT_TYPE_SECRET, "LIGHTDM_PROMPT_TYPE_SECRET", "secret" },
155 enum_type = g_enum_register_static (g_intern_static_string ("LightDMPromptType"), values);
162 lightdm_message_type_get_type (void)
164 static GType enum_type = 0;
166 if (G_UNLIKELY(enum_type == 0)) {
167 static const GEnumValue values[] = {
168 { LIGHTDM_MESSAGE_TYPE_INFO, "LIGHTDM_MESSAGE_TYPE_INFO", "info" },
169 { LIGHTDM_MESSAGE_TYPE_ERROR, "LIGHTDM_MESSAGE_TYPE_ERROR", "error" },
172 enum_type = g_enum_register_static (g_intern_static_string ("LightDMMessageType"), values);
180 * lightdm_greeter_new:
182 * Create a new greeter.
184 * Return value: the new #LightDMGreeter
187 lightdm_greeter_new (void)
189 return g_object_new (LIGHTDM_TYPE_GREETER, NULL);
193 * lightdm_greeter_set_resettable:
194 * @greeter: A #LightDMGreeter
195 * @resettable: Whether the greeter wants to be reset instead of killed after the user logs in
197 * Set whether the greeter will be reset instead of killed after the user logs in.
198 * This must be called before lightdm_greeter_connect is called.
201 lightdm_greeter_set_resettable (LightDMGreeter *greeter, gboolean resettable)
203 LightDMGreeterPrivate *priv;
205 g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
207 priv = GET_PRIVATE (greeter);
209 g_return_if_fail (!priv->connected);
210 priv->resettable = resettable;
214 request_new (GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data)
218 request = g_object_new (request_get_type (), NULL);
220 request->cancellable = g_object_ref (cancellable);
221 request->callback = callback;
222 request->user_data = user_data;
228 request_complete (Request *request, GObject *object)
230 request->complete = TRUE;
232 if (!request->callback)
235 if (request->cancellable && g_cancellable_is_cancelled (request->cancellable))
238 request->callback (object, G_ASYNC_RESULT (request), request->user_data);
242 timed_login_cb (gpointer data)
244 LightDMGreeter *greeter = data;
245 LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
247 priv->autologin_timeout = 0;
248 g_signal_emit (G_OBJECT (greeter), signals[AUTOLOGIN_TIMER_EXPIRED], 0);
260 write_int (guint8 *buffer, gint buffer_length, guint32 value, gsize *offset)
262 if (*offset + 4 >= buffer_length)
264 buffer[*offset] = value >> 24;
265 buffer[*offset+1] = (value >> 16) & 0xFF;
266 buffer[*offset+2] = (value >> 8) & 0xFF;
267 buffer[*offset+3] = value & 0xFF;
272 write_string (guint8 *buffer, gint buffer_length, const gchar *value, gsize *offset)
277 length = strlen (value);
278 write_int (buffer, buffer_length, length, offset);
279 if (*offset + length >= buffer_length)
282 memcpy (buffer + *offset, value, length);
287 read_int (guint8 *message, gsize message_length, gsize *offset)
292 if (message_length - *offset < int_length ())
294 g_warning ("Not enough space for int, need %i, got %zi", int_length (), message_length - *offset);
298 buffer = message + *offset;
299 value = buffer[0] << 24 | buffer[1] << 16 | buffer[2] << 8 | buffer[3];
300 *offset += int_length ();
306 read_string (guint8 *message, gsize message_length, gsize *offset)
311 length = read_int (message, message_length, offset);
312 if (message_length - *offset < length)
314 g_warning ("Not enough space for string, need %u, got %zu", length, message_length - *offset);
315 return g_strdup ("");
318 value = g_malloc (sizeof (gchar) * (length + 1));
319 memcpy (value, message + *offset, length);
320 value[length] = '\0';
327 string_length (const gchar *value)
330 return int_length () + strlen (value);
332 return int_length ();
336 write_header (guint8 *buffer, gint buffer_length, guint32 id, guint32 length, gsize *offset)
338 write_int (buffer, buffer_length, id, offset);
339 write_int (buffer, buffer_length, length, offset);
343 get_message_length (guint8 *message, gsize message_length)
346 return read_int (message, message_length, &offset);
350 send_message (LightDMGreeter *greeter, guint8 *message, gsize message_length)
352 LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
355 GError *error = NULL;
356 guint32 stated_length;
358 if (!priv->to_server_channel)
361 /* Double check that we're sending well-formed messages. If we say we're
362 sending more than we do, we end up DOS'ing lightdm as it waits for the
363 rest. If we say we're sending less than we do, we confuse the heck out
364 of lightdm, as it starts reading headers from the middle of our
366 stated_length = HEADER_SIZE + get_message_length (message, message_length);
367 if (stated_length != message_length)
369 g_warning ("Refusing to write malformed packet to daemon: declared size is %u, but actual size is %zu", stated_length, message_length);
373 data = (gchar *) message;
374 data_length = message_length;
375 while (data_length > 0)
380 status = g_io_channel_write_chars (priv->to_server_channel, data, data_length, &n_written, &error);
382 g_warning ("Error writing to daemon: %s", error->message);
383 g_clear_error (&error);
384 if (status != G_IO_STATUS_NORMAL)
386 data_length -= n_written;
390 g_debug ("Wrote %zi bytes to daemon", message_length);
391 g_io_channel_flush (priv->to_server_channel, &error);
393 g_warning ("Failed to flush data to daemon: %s", error->message);
394 g_clear_error (&error);
400 handle_connected (LightDMGreeter *greeter, guint8 *message, gsize message_length, gsize *offset)
402 LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
404 GString *hint_string;
408 version = read_string (message, message_length, offset);
409 hint_string = g_string_new ("");
410 while (*offset < message_length)
414 name = read_string (message, message_length, offset);
415 value = read_string (message, message_length, offset);
416 g_hash_table_insert (priv->hints, name, value);
417 g_string_append_printf (hint_string, " %s=%s", name, value);
420 priv->connected = TRUE;
421 g_debug ("Connected version=%s%s", version, hint_string->str);
423 g_string_free (hint_string, TRUE);
425 /* Set timeout for default login */
426 timeout = lightdm_greeter_get_autologin_timeout_hint (greeter);
429 g_debug ("Setting autologin timer for %d seconds", timeout);
430 priv->autologin_timeout = g_timeout_add (timeout * 1000, timed_login_cb, greeter);
433 /* Notify asynchronous caller */
434 request = g_list_nth_data (priv->connect_requests, 0);
437 request_complete (request, G_OBJECT (greeter));
438 priv->connect_requests = g_list_remove (priv->connect_requests, request);
439 g_object_unref (request);
444 handle_prompt_authentication (LightDMGreeter *greeter, guint8 *message, gsize message_length, gsize *offset)
446 LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
447 guint32 sequence_number, n_messages, i;
450 sequence_number = read_int (message, message_length, offset);
451 if (sequence_number != priv->authenticate_sequence_number)
453 g_debug ("Ignoring prompt authentication with invalid sequence number %d", sequence_number);
457 if (priv->cancelling_authentication)
459 g_debug ("Ignoring prompt authentication as waiting for it to cancel");
463 /* Update username */
464 username = read_string (message, message_length, offset);
465 if (strcmp (username, "") == 0)
470 g_free (priv->authentication_user);
471 priv->authentication_user = username;
473 g_list_free_full (priv->responses_received, g_free);
474 priv->responses_received = NULL;
475 priv->n_responses_waiting = 0;
477 n_messages = read_int (message, message_length, offset);
478 g_debug ("Prompt user with %d message(s)", n_messages);
480 for (i = 0; i < n_messages; i++)
485 style = read_int (message, message_length, offset);
486 text = read_string (message, message_length, offset);
488 // FIXME: Should stop on prompts?
491 case PAM_PROMPT_ECHO_OFF:
492 priv->n_responses_waiting++;
493 g_signal_emit (G_OBJECT (greeter), signals[SHOW_PROMPT], 0, text, LIGHTDM_PROMPT_TYPE_SECRET);
495 case PAM_PROMPT_ECHO_ON:
496 priv->n_responses_waiting++;
497 g_signal_emit (G_OBJECT (greeter), signals[SHOW_PROMPT], 0, text, LIGHTDM_PROMPT_TYPE_QUESTION);
500 g_signal_emit (G_OBJECT (greeter), signals[SHOW_MESSAGE], 0, text, LIGHTDM_MESSAGE_TYPE_ERROR);
503 g_signal_emit (G_OBJECT (greeter), signals[SHOW_MESSAGE], 0, text, LIGHTDM_MESSAGE_TYPE_INFO);
512 handle_end_authentication (LightDMGreeter *greeter, guint8 *message, gsize message_length, gsize *offset)
514 LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
515 guint32 sequence_number, return_code;
518 sequence_number = read_int (message, message_length, offset);
520 if (sequence_number != priv->authenticate_sequence_number)
522 g_debug ("Ignoring end authentication with invalid sequence number %d", sequence_number);
526 username = read_string (message, message_length, offset);
527 return_code = read_int (message, message_length, offset);
529 g_debug ("Authentication complete for user %s with return code %d", username, return_code);
531 /* Update username */
532 if (strcmp (username, "") == 0)
537 g_free (priv->authentication_user);
538 priv->authentication_user = username;
540 priv->cancelling_authentication = FALSE;
541 priv->is_authenticated = (return_code == 0);
543 priv->in_authentication = FALSE;
544 g_signal_emit (G_OBJECT (greeter), signals[AUTHENTICATION_COMPLETE], 0);
548 handle_idle (LightDMGreeter *greeter, guint8 *message, gsize message_length, gsize *offset)
550 g_signal_emit (G_OBJECT (greeter), signals[IDLE], 0);
554 handle_reset (LightDMGreeter *greeter, guint8 *message, gsize message_length, gsize *offset)
556 LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
557 GString *hint_string;
559 g_hash_table_remove_all (priv->hints);
561 hint_string = g_string_new ("");
562 while (*offset < message_length)
566 name = read_string (message, message_length, offset);
567 value = read_string (message, message_length, offset);
568 g_hash_table_insert (priv->hints, name, value);
569 g_string_append_printf (hint_string, " %s=%s", name, value);
572 g_debug ("Reset%s", hint_string->str);
573 g_string_free (hint_string, TRUE);
575 g_signal_emit (G_OBJECT (greeter), signals[RESET], 0);
579 handle_session_result (LightDMGreeter *greeter, guint8 *message, gsize message_length, gsize *offset)
581 LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
584 /* Notify asynchronous caller */
585 request = g_list_nth_data (priv->start_session_requests, 0);
588 request->return_code = read_int (message, message_length, offset);
589 request_complete (request, G_OBJECT (greeter));
590 priv->start_session_requests = g_list_remove (priv->start_session_requests, request);
591 g_object_unref (request);
596 handle_shared_dir_result (LightDMGreeter *greeter, guint8 *message, gsize message_length, gsize *offset)
598 LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
601 /* Notify asynchronous caller */
602 request = g_list_nth_data (priv->ensure_shared_data_dir_requests, 0);
605 request->dir = read_string (message, message_length, offset);
606 /* Blank data dir means invalid user */
607 if (g_strcmp0 (request->dir, "") == 0)
609 g_free (request->dir);
612 request_complete (request, G_OBJECT (greeter));
613 priv->ensure_shared_data_dir_requests = g_list_remove (priv->ensure_shared_data_dir_requests, request);
614 g_object_unref (request);
619 handle_message (LightDMGreeter *greeter, guint8 *message, gsize message_length)
624 id = read_int (message, message_length, &offset);
625 read_int (message, message_length, &offset);
628 case SERVER_MESSAGE_CONNECTED:
629 handle_connected (greeter, message, message_length, &offset);
631 case SERVER_MESSAGE_PROMPT_AUTHENTICATION:
632 handle_prompt_authentication (greeter, message, message_length, &offset);
634 case SERVER_MESSAGE_END_AUTHENTICATION:
635 handle_end_authentication (greeter, message, message_length, &offset);
637 case SERVER_MESSAGE_SESSION_RESULT:
638 handle_session_result (greeter, message, message_length, &offset);
640 case SERVER_MESSAGE_SHARED_DIR_RESULT:
641 handle_shared_dir_result (greeter, message, message_length, &offset);
643 case SERVER_MESSAGE_IDLE:
644 handle_idle (greeter, message, message_length, &offset);
646 case SERVER_MESSAGE_RESET:
647 handle_reset (greeter, message, message_length, &offset);
650 g_warning ("Unknown message from server: %d", id);
656 recv_message (LightDMGreeter *greeter, gsize *length, gboolean block)
658 LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
659 gsize n_to_read, n_read;
661 GError *error = NULL;
663 if (!priv->from_server_channel)
666 /* Read the header, or the whole message if we already have that */
667 n_to_read = HEADER_SIZE;
668 if (priv->n_read >= HEADER_SIZE)
669 n_to_read += get_message_length (priv->read_buffer, priv->n_read);
674 status = g_io_channel_read_chars (priv->from_server_channel,
675 (gchar *) priv->read_buffer + priv->n_read,
676 n_to_read - priv->n_read,
680 g_warning ("Error reading from server: %s", error->message);
681 g_clear_error (&error);
682 if (status != G_IO_STATUS_NORMAL)
685 g_debug ("Read %zi bytes from daemon", n_read);
687 priv->n_read += n_read;
688 } while (priv->n_read < n_to_read && block);
690 /* Stop if haven't got all the data we want */
691 if (priv->n_read != n_to_read)
694 /* If have header, rerun for content */
695 if (priv->n_read == HEADER_SIZE)
697 n_to_read = get_message_length (priv->read_buffer, priv->n_read);
700 priv->read_buffer = g_realloc (priv->read_buffer, HEADER_SIZE + n_to_read);
701 return recv_message (greeter, length, block);
705 buffer = priv->read_buffer;
706 *length = priv->n_read;
708 priv->read_buffer = g_malloc (priv->n_read);
715 from_server_cb (GIOChannel *source, GIOCondition condition, gpointer data)
717 LightDMGreeter *greeter = data;
719 gsize message_length;
721 /* Read one message and process it */
722 message = recv_message (greeter, &message_length, FALSE);
725 handle_message (greeter, message, message_length);
733 send_connect (LightDMGreeter *greeter, gboolean resettable)
735 guint8 message[MAX_MESSAGE_LENGTH];
738 g_debug ("Connecting to display manager...");
739 write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_CONNECT, string_length (VERSION) + int_length (), &offset);
740 write_string (message, MAX_MESSAGE_LENGTH, VERSION, &offset);
741 write_int (message, MAX_MESSAGE_LENGTH, resettable ? 1 : 0, &offset);
743 return send_message (greeter, message, offset);
747 send_start_session (LightDMGreeter *greeter, const gchar *session)
749 guint8 message[MAX_MESSAGE_LENGTH];
753 g_debug ("Starting session %s", session);
755 g_debug ("Starting default session");
757 write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_START_SESSION, string_length (session), &offset);
758 write_string (message, MAX_MESSAGE_LENGTH, session, &offset);
759 return send_message (greeter, message, offset);
763 send_ensure_shared_data_dir (LightDMGreeter *greeter, const gchar *username)
765 guint8 message[MAX_MESSAGE_LENGTH];
768 g_debug ("Ensuring data directory for user %s", username);
770 write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_ENSURE_SHARED_DIR, string_length (username), &offset);
771 write_string (message, MAX_MESSAGE_LENGTH, username, &offset);
772 return send_message (greeter, message, offset);
776 * lightdm_greeter_connect_to_daemon:
777 * @greeter: The greeter to connect
778 * @cancellable: (allow-none): A #GCancellable or %NULL.
779 * @callback: (allow-none): A #GAsyncReadyCallback to call when completed or %NULL.
780 * @user_data: (allow-none): data to pass to the @callback or %NULL.
782 * Asynchronously connects the greeter to the display manager.
784 * When the operation is finished, @callback will be invoked. You can then call lightdm_greeter_connect_to_daemon_finish() to get the result of the operation.
786 * See lightdm_greeter_connect_to_daemon_sync() for the synchronous version.
789 lightdm_greeter_connect_to_daemon (LightDMGreeter *greeter, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data)
791 LightDMGreeterPrivate *priv;
794 g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
796 priv = GET_PRIVATE (greeter);
798 request = request_new (cancellable, callback, user_data);
799 priv->connect_requests = g_list_append (priv->connect_requests, request);
800 send_connect (greeter, priv->resettable);
804 * lightdm_greeter_connect_to_daemon_finish:
805 * @greeter: The greeter the the request was done with
806 * @result: A #GAsyncResult.
807 * @error: return location for a #GError, or %NULL
809 * Finishes an operation started with lightdm_greeter_connect_to_daemon().
811 * Return value: #TRUE if successfully connected
814 lightdm_greeter_connect_to_daemon_finish (LightDMGreeter *greeter, GAsyncResult *result, GError **error)
816 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
817 return REQUEST (result)->complete;
821 * lightdm_greeter_connect_to_daemon_sync:
822 * @greeter: The greeter to connect
823 * @error: return location for a #GError, or %NULL
825 * Connects the greeter to the display manager. Will block until connected.
827 * Return value: #TRUE if successfully connected
830 lightdm_greeter_connect_to_daemon_sync (LightDMGreeter *greeter, GError **error)
832 LightDMGreeterPrivate *priv;
835 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
837 priv = GET_PRIVATE (greeter);
839 /* Read until we are connected */
840 send_connect (greeter, priv->resettable);
841 request = request_new (NULL, NULL, NULL);
842 priv->connect_requests = g_list_append (priv->connect_requests, g_object_ref (request));
846 gsize message_length;
848 message = recv_message (greeter, &message_length, TRUE);
851 handle_message (greeter, message, message_length);
853 } while (!request->complete);
855 g_object_unref (request);
857 return request->complete;
861 * lightdm_greeter_connect_sync:
862 * @greeter: The greeter to connect
863 * @error: return location for a #GError, or %NULL
865 * Connects the greeter to the display manager. Will block until connected.
867 * Return value: #TRUE if successfully connected
869 * Deprecated: 1.11.1: Use lightdm_greeter_connect_to_daemon_sync() instead
872 lightdm_greeter_connect_sync (LightDMGreeter *greeter, GError **error)
874 return lightdm_greeter_connect_to_daemon_sync (greeter, error);
878 * lightdm_greeter_get_hint:
879 * @greeter: A #LightDMGreeter
880 * @name: The hint name to query.
884 * Return value: (nullable): The value for this hint or #NULL if not set.
887 lightdm_greeter_get_hint (LightDMGreeter *greeter, const gchar *name)
889 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), NULL);
890 return g_hash_table_lookup (GET_PRIVATE (greeter)->hints, name);
894 * lightdm_greeter_get_default_session_hint:
895 * @greeter: A #LightDMGreeter
897 * Get the default session to use.
899 * Return value: The session name
902 lightdm_greeter_get_default_session_hint (LightDMGreeter *greeter)
904 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), NULL);
905 return lightdm_greeter_get_hint (greeter, "default-session");
909 * lightdm_greeter_get_hide_users_hint:
910 * @greeter: A #LightDMGreeter
912 * Check if user accounts should be shown. If this is TRUE then the list of
913 * accounts should be taken from #LightDMUserList and displayed in the greeter
914 * for the user to choose from. Note that this list can be empty and it is
915 * recommended you show a method for the user to enter a username manually.
917 * If this option is shown the greeter should only allow these users to be
918 * chosen for login unless the manual login hint is set.
920 * Return value: #TRUE if the available users should not be shown.
923 lightdm_greeter_get_hide_users_hint (LightDMGreeter *greeter)
927 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
928 value = lightdm_greeter_get_hint (greeter, "hide-users");
930 return g_strcmp0 (value, "true") == 0;
934 * lightdm_greeter_get_show_manual_login_hint:
935 * @greeter: A #LightDMGreeter
937 * Check if a manual login option should be shown. If set the GUI
938 * should provide a way for a username to be entered manually.
939 * Without this hint a greeter which is showing a user list can
940 * limit logins to only those users.
942 * Return value: #TRUE if a manual login option should be shown.
945 lightdm_greeter_get_show_manual_login_hint (LightDMGreeter *greeter)
949 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
950 value = lightdm_greeter_get_hint (greeter, "show-manual-login");
952 return g_strcmp0 (value, "true") == 0;
956 * lightdm_greeter_get_show_remote_login_hint:
957 * @greeter: A #LightDMGreeter
959 * Check if a remote login option should be shown. If set the GUI
960 * should provide a way for a user to log into a remote desktop server.
962 * Return value: #TRUE if a remote login option should be shown.
965 lightdm_greeter_get_show_remote_login_hint (LightDMGreeter *greeter)
969 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
970 value = lightdm_greeter_get_hint (greeter, "show-remote-login");
972 return g_strcmp0 (value, "true") == 0;
976 * lightdm_greeter_get_lock_hint:
977 * @greeter: A #LightDMGreeter
979 * Check if the greeter is acting as a lock screen.
981 * Return value: #TRUE if the greeter was triggered by locking the seat.
984 lightdm_greeter_get_lock_hint (LightDMGreeter *greeter)
988 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
989 value = lightdm_greeter_get_hint (greeter, "lock-screen");
991 return g_strcmp0 (value, "true") == 0;
995 * lightdm_greeter_get_has_guest_account_hint:
996 * @greeter: A #LightDMGreeter
998 * Check if guest sessions are supported.
1000 * Return value: #TRUE if guest sessions are supported.
1003 lightdm_greeter_get_has_guest_account_hint (LightDMGreeter *greeter)
1007 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
1008 value = lightdm_greeter_get_hint (greeter, "has-guest-account");
1010 return g_strcmp0 (value, "true") == 0;
1014 * lightdm_greeter_get_select_user_hint:
1015 * @greeter: A #LightDMGreeter
1017 * Get the user to select by default.
1019 * Return value: (nullable): A username or %NULL if no particular user should be selected.
1022 lightdm_greeter_get_select_user_hint (LightDMGreeter *greeter)
1024 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), NULL);
1025 return lightdm_greeter_get_hint (greeter, "select-user");
1029 * lightdm_greeter_get_select_guest_hint:
1030 * @greeter: A #LightDMGreeter
1032 * Check if the guest account should be selected by default.
1034 * Return value: #TRUE if the guest account should be selected by default.
1037 lightdm_greeter_get_select_guest_hint (LightDMGreeter *greeter)
1041 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
1042 value = lightdm_greeter_get_hint (greeter, "select-guest");
1044 return g_strcmp0 (value, "true") == 0;
1048 * lightdm_greeter_get_autologin_user_hint:
1049 * @greeter: A #LightDMGreeter
1051 * Get the user account to automatically log into when the timer expires.
1053 * Return value: (nullable): The user account to automatically log into or %NULL if none configured.
1056 lightdm_greeter_get_autologin_user_hint (LightDMGreeter *greeter)
1058 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), NULL);
1059 return lightdm_greeter_get_hint (greeter, "autologin-user");
1063 * lightdm_greeter_get_autologin_guest_hint:
1064 * @greeter: A #LightDMGreeter
1066 * Check if the guest account should be automatically logged into when the timer expires.
1068 * Return value: #TRUE if the guest account should be automatically logged into.
1071 lightdm_greeter_get_autologin_guest_hint (LightDMGreeter *greeter)
1075 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
1076 value = lightdm_greeter_get_hint (greeter, "autologin-guest");
1078 return g_strcmp0 (value, "true") == 0;
1082 * lightdm_greeter_get_autologin_timeout_hint:
1083 * @greeter: A #LightDMGreeter
1085 * Get the number of seconds to wait before automaitcally logging in.
1087 * Return value: The number of seconds to wait before automatically logging in or 0 for no timeout.
1090 lightdm_greeter_get_autologin_timeout_hint (LightDMGreeter *greeter)
1095 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
1096 value = lightdm_greeter_get_hint (greeter, "autologin-timeout");
1098 timeout = atoi (value);
1106 * lightdm_greeter_cancel_autologin:
1107 * @greeter: A #LightDMGreeter
1109 * Cancel the automatic login.
1112 lightdm_greeter_cancel_autologin (LightDMGreeter *greeter)
1114 LightDMGreeterPrivate *priv;
1116 g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
1118 priv = GET_PRIVATE (greeter);
1120 if (priv->autologin_timeout)
1121 g_source_remove (priv->autologin_timeout);
1122 priv->autologin_timeout = 0;
1126 * lightdm_greeter_authenticate:
1127 * @greeter: A #LightDMGreeter
1128 * @username: (allow-none): A username or #NULL to prompt for a username.
1130 * Starts the authentication procedure for a user.
1133 lightdm_greeter_authenticate (LightDMGreeter *greeter, const gchar *username)
1135 LightDMGreeterPrivate *priv;
1136 guint8 message[MAX_MESSAGE_LENGTH];
1139 g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
1141 priv = GET_PRIVATE (greeter);
1143 g_return_if_fail (priv->connected);
1145 priv->cancelling_authentication = FALSE;
1146 priv->authenticate_sequence_number++;
1147 priv->in_authentication = TRUE;
1148 priv->is_authenticated = FALSE;
1149 if (username != priv->authentication_user)
1151 g_free (priv->authentication_user);
1152 priv->authentication_user = g_strdup (username);
1155 g_debug ("Starting authentication for user %s...", username);
1156 write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_AUTHENTICATE, int_length () + string_length (username), &offset);
1157 write_int (message, MAX_MESSAGE_LENGTH, priv->authenticate_sequence_number, &offset);
1158 write_string (message, MAX_MESSAGE_LENGTH, username, &offset);
1159 send_message (greeter, message, offset);
1163 * lightdm_greeter_authenticate_as_guest:
1164 * @greeter: A #LightDMGreeter
1166 * Starts the authentication procedure for the guest user.
1169 lightdm_greeter_authenticate_as_guest (LightDMGreeter *greeter)
1171 LightDMGreeterPrivate *priv;
1172 guint8 message[MAX_MESSAGE_LENGTH];
1175 g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
1177 priv = GET_PRIVATE (greeter);
1179 g_return_if_fail (priv->connected);
1181 priv->cancelling_authentication = FALSE;
1182 priv->authenticate_sequence_number++;
1183 priv->in_authentication = TRUE;
1184 priv->is_authenticated = FALSE;
1185 g_free (priv->authentication_user);
1186 priv->authentication_user = NULL;
1188 g_debug ("Starting authentication for guest account...");
1189 write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_AUTHENTICATE_AS_GUEST, int_length (), &offset);
1190 write_int (message, MAX_MESSAGE_LENGTH, priv->authenticate_sequence_number, &offset);
1191 send_message (greeter, message, offset);
1195 * lightdm_greeter_authenticate_autologin:
1196 * @greeter: A #LightDMGreeter
1198 * Starts the authentication procedure for the automatic login user.
1201 lightdm_greeter_authenticate_autologin (LightDMGreeter *greeter)
1205 user = lightdm_greeter_get_autologin_user_hint (greeter);
1206 if (lightdm_greeter_get_autologin_guest_hint (greeter))
1207 lightdm_greeter_authenticate_as_guest (greeter);
1209 lightdm_greeter_authenticate (greeter, user);
1213 * lightdm_greeter_authenticate_remote:
1214 * @greeter: A #LightDMGreeter
1215 * @session: The name of a remote session
1216 * @username: (allow-none): A username of #NULL to prompt for a username.
1218 * Start authentication for a remote session type.
1221 lightdm_greeter_authenticate_remote (LightDMGreeter *greeter, const gchar *session, const gchar *username)
1223 LightDMGreeterPrivate *priv;
1224 guint8 message[MAX_MESSAGE_LENGTH];
1227 g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
1229 priv = GET_PRIVATE (greeter);
1231 g_return_if_fail (priv->connected);
1233 priv->cancelling_authentication = FALSE;
1234 priv->authenticate_sequence_number++;
1235 priv->in_authentication = TRUE;
1236 priv->is_authenticated = FALSE;
1237 g_free (priv->authentication_user);
1238 priv->authentication_user = NULL;
1241 g_debug ("Starting authentication for remote session %s as user %s...", session, username);
1243 g_debug ("Starting authentication for remote session %s...", session);
1244 write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_AUTHENTICATE_REMOTE, int_length () + string_length (session) + string_length (username), &offset);
1245 write_int (message, MAX_MESSAGE_LENGTH, priv->authenticate_sequence_number, &offset);
1246 write_string (message, MAX_MESSAGE_LENGTH, session, &offset);
1247 write_string (message, MAX_MESSAGE_LENGTH, username, &offset);
1248 send_message (greeter, message, offset);
1252 * lightdm_greeter_respond:
1253 * @greeter: A #LightDMGreeter
1254 * @response: Response to a prompt
1256 * Provide response to a prompt. May be one in a series.
1259 lightdm_greeter_respond (LightDMGreeter *greeter, const gchar *response)
1261 LightDMGreeterPrivate *priv;
1262 guint8 message[MAX_MESSAGE_LENGTH];
1265 g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
1266 g_return_if_fail (response != NULL);
1268 priv = GET_PRIVATE (greeter);
1270 g_return_if_fail (priv->connected);
1271 g_return_if_fail (priv->n_responses_waiting > 0);
1273 priv->n_responses_waiting--;
1274 priv->responses_received = g_list_append (priv->responses_received, g_strdup (response));
1276 if (priv->n_responses_waiting == 0)
1281 g_debug ("Providing response to display manager");
1283 msg_length = int_length ();
1284 for (iter = priv->responses_received; iter; iter = iter->next)
1285 msg_length += string_length ((gchar *)iter->data);
1287 write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_CONTINUE_AUTHENTICATION, msg_length, &offset);
1288 write_int (message, MAX_MESSAGE_LENGTH, g_list_length (priv->responses_received), &offset);
1289 for (iter = priv->responses_received; iter; iter = iter->next)
1290 write_string (message, MAX_MESSAGE_LENGTH, (gchar *)iter->data, &offset);
1291 send_message (greeter, message, offset);
1293 g_list_free_full (priv->responses_received, g_free);
1294 priv->responses_received = NULL;
1299 * lightdm_greeter_cancel_authentication:
1300 * @greeter: A #LightDMGreeter
1302 * Cancel the current user authentication.
1305 lightdm_greeter_cancel_authentication (LightDMGreeter *greeter)
1307 LightDMGreeterPrivate *priv;
1308 guint8 message[MAX_MESSAGE_LENGTH];
1311 g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
1313 priv = GET_PRIVATE (greeter);
1315 g_return_if_fail (priv->connected);
1317 priv->cancelling_authentication = TRUE;
1318 write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_CANCEL_AUTHENTICATION, 0, &offset);
1319 send_message (greeter, message, offset);
1323 * lightdm_greeter_get_in_authentication:
1324 * @greeter: A #LightDMGreeter
1326 * Checks if the greeter is in the process of authenticating.
1328 * Return value: #TRUE if the greeter is authenticating a user.
1331 lightdm_greeter_get_in_authentication (LightDMGreeter *greeter)
1333 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
1334 return GET_PRIVATE (greeter)->in_authentication;
1338 * lightdm_greeter_get_is_authenticated:
1339 * @greeter: A #LightDMGreeter
1341 * Checks if the greeter has successfully authenticated.
1343 * Return value: #TRUE if the greeter is authenticated for login.
1346 lightdm_greeter_get_is_authenticated (LightDMGreeter *greeter)
1348 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
1349 return GET_PRIVATE (greeter)->is_authenticated;
1353 * lightdm_greeter_get_authentication_user:
1354 * @greeter: A #LightDMGreeter
1356 * Get the user that is being authenticated.
1358 * Return value: (nullable): The username of the authentication user being authenticated or #NULL if no authentication in progress.
1361 lightdm_greeter_get_authentication_user (LightDMGreeter *greeter)
1363 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), NULL);
1364 return GET_PRIVATE (greeter)->authentication_user;
1368 * lightdm_greeter_set_language:
1369 * @greeter: A #LightDMGreeter
1370 * @language: The language to use for this user in the form of a locale specification (e.g. "de_DE.UTF-8").
1372 * Set the language for the currently authenticated user.
1375 lightdm_greeter_set_language (LightDMGreeter *greeter, const gchar *language)
1377 LightDMGreeterPrivate *priv;
1378 guint8 message[MAX_MESSAGE_LENGTH];
1381 g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
1383 priv = GET_PRIVATE (greeter);
1385 g_return_if_fail (priv->connected);
1387 write_header (message, MAX_MESSAGE_LENGTH, GREETER_MESSAGE_SET_LANGUAGE, string_length (language), &offset);
1388 write_string (message, MAX_MESSAGE_LENGTH, language, &offset);
1389 send_message (greeter, message, offset);
1393 * lightdm_greeter_start_session:
1394 * @greeter: A #LightDMGreeter
1395 * @session: (allow-none): The session to log into or #NULL to use the default.
1396 * @cancellable: (allow-none): A #GCancellable or %NULL.
1397 * @callback: (allow-none): A #GAsyncReadyCallback to call when completed or %NULL.
1398 * @user_data: (allow-none): data to pass to the @callback or %NULL.
1400 * Asynchronously start a session for the authenticated user.
1402 * When the operation is finished, @callback will be invoked. You can then call lightdm_greeter_start_session_finish() to get the result of the operation.
1404 * See lightdm_greeter_start_session_sync() for the synchronous version.
1407 lightdm_greeter_start_session (LightDMGreeter *greeter, const gchar *session, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data)
1409 LightDMGreeterPrivate *priv;
1412 g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
1414 priv = GET_PRIVATE (greeter);
1416 send_start_session (greeter, session);
1417 request = request_new (cancellable, callback, user_data);
1418 priv->start_session_requests = g_list_append (priv->start_session_requests, request);
1422 * lightdm_greeter_start_session_finish:
1423 * @greeter: A #LightDMGreeter
1424 * @result: A #GAsyncResult.
1425 * @error: return location for a #GError, or %NULL
1427 * Start a session for the authenticated user.
1429 * Return value: TRUE if the session was started.
1432 lightdm_greeter_start_session_finish (LightDMGreeter *greeter, GAsyncResult *result, GError **error)
1434 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
1435 return REQUEST (result)->return_code == 0;
1439 * lightdm_greeter_start_session_sync:
1440 * @greeter: A #LightDMGreeter
1441 * @session: (allow-none): The session to log into or #NULL to use the default.
1442 * @error: return location for a #GError, or %NULL
1444 * Start a session for the authenticated user.
1446 * Return value: TRUE if the session was started.
1449 lightdm_greeter_start_session_sync (LightDMGreeter *greeter, const gchar *session, GError **error)
1451 LightDMGreeterPrivate *priv;
1453 guint32 return_code;
1455 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), FALSE);
1457 priv = GET_PRIVATE (greeter);
1459 g_return_val_if_fail (priv->connected, FALSE);
1460 g_return_val_if_fail (priv->is_authenticated, FALSE);
1462 /* Read until the session is started */
1463 send_start_session (greeter, session);
1464 request = request_new (NULL, NULL, NULL);
1465 priv->start_session_requests = g_list_append (priv->start_session_requests, g_object_ref (request));
1469 gsize message_length;
1471 message = recv_message (greeter, &message_length, TRUE);
1474 handle_message (greeter, message, message_length);
1476 } while (!request->complete);
1478 return_code = request->return_code;
1479 g_object_unref (request);
1481 return return_code == 0;
1485 * lightdm_greeter_ensure_shared_data_dir:
1486 * @greeter: A #LightDMGreeter
1487 * @username: A username
1488 * @cancellable: (allow-none): A #GCancellable or %NULL.
1489 * @callback: (allow-none): A #GAsyncReadyCallback to call when completed or %NULL.
1490 * @user_data: (allow-none): data to pass to the @callback or %NULL.
1492 * Ensure that a shared data dir for the given user is available. Both the
1493 * greeter user and @username will have write access to that folder. The
1494 * intention is that larger pieces of shared data would be stored there (files
1495 * that the greeter creates but wants to give to a user -- like camera
1496 * photos -- or files that the user creates but wants the greeter to
1497 * see -- like contact avatars).
1499 * LightDM will automatically create these if the user actually logs in, so
1500 * greeters only need to call this method if they want to store something in
1501 * the directory themselves.
1504 lightdm_greeter_ensure_shared_data_dir (LightDMGreeter *greeter, const gchar *username, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data)
1506 LightDMGreeterPrivate *priv;
1509 g_return_if_fail (LIGHTDM_IS_GREETER (greeter));
1511 priv = GET_PRIVATE (greeter);
1513 send_ensure_shared_data_dir (greeter, username);
1514 request = request_new (cancellable, callback, user_data);
1515 priv->ensure_shared_data_dir_requests = g_list_append (priv->ensure_shared_data_dir_requests, request);
1519 * lightdm_greeter_ensure_shared_data_dir_finish:
1520 * @result: A #GAsyncResult.
1521 * @greeter: A #LightDMGreeter
1523 * Function to call from lightdm_greeter_ensure_shared_data_dir callback.
1525 * Return value: The path to the shared directory, free with g_free.
1528 lightdm_greeter_ensure_shared_data_dir_finish (LightDMGreeter *greeter, GAsyncResult *result)
1530 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), NULL);
1531 return g_strdup (REQUEST (result)->dir);
1535 * lightdm_greeter_ensure_shared_data_dir_sync:
1536 * @greeter: A #LightDMGreeter
1537 * @username: A username
1539 * Ensure that a shared data dir for the given user is available. Both the
1540 * greeter user and @username will have write access to that folder. The
1541 * intention is that larger pieces of shared data would be stored there (files
1542 * that the greeter creates but wants to give to a user -- like camera
1543 * photos -- or files that the user creates but wants the greeter to
1544 * see -- like contact avatars).
1546 * LightDM will automatically create these if the user actually logs in, so
1547 * greeters only need to call this method if they want to store something in
1548 * the directory themselves.
1550 * Return value: The path to the shared directory, free with g_free.
1553 lightdm_greeter_ensure_shared_data_dir_sync (LightDMGreeter *greeter, const gchar *username)
1555 LightDMGreeterPrivate *priv;
1559 g_return_val_if_fail (LIGHTDM_IS_GREETER (greeter), NULL);
1561 priv = GET_PRIVATE (greeter);
1563 g_return_val_if_fail (priv->connected, NULL);
1565 /* Read until a response */
1566 send_ensure_shared_data_dir (greeter, username);
1567 request = request_new (NULL, NULL, NULL);
1568 priv->ensure_shared_data_dir_requests = g_list_append (priv->ensure_shared_data_dir_requests, g_object_ref (request));
1572 gsize message_length;
1574 message = recv_message (greeter, &message_length, TRUE);
1577 handle_message (greeter, message, message_length);
1579 } while (!request->complete);
1581 data_dir = g_strdup (request->dir);
1582 g_object_unref (request);
1588 lightdm_greeter_init (LightDMGreeter *greeter)
1590 LightDMGreeterPrivate *priv = GET_PRIVATE (greeter);
1593 priv->read_buffer = g_malloc (HEADER_SIZE);
1594 priv->hints = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
1596 fd = g_getenv ("LIGHTDM_TO_SERVER_FD");
1599 GError *error = NULL;
1601 priv->to_server_channel = g_io_channel_unix_new (atoi (fd));
1602 g_io_channel_set_encoding (priv->to_server_channel, NULL, &error);
1604 g_warning ("Failed to set encoding on to server channel to binary: %s\n", error->message);
1605 g_clear_error (&error);
1608 g_warning ("No LIGHTDM_TO_SERVER_FD environment variable");
1610 fd = g_getenv ("LIGHTDM_FROM_SERVER_FD");
1613 GError *error = NULL;
1615 priv->from_server_channel = g_io_channel_unix_new (atoi (fd));
1616 g_io_channel_set_encoding (priv->from_server_channel, NULL, &error);
1618 g_warning ("Failed to set encoding on from server channel to binary: %s\n", error->message);
1619 g_clear_error (&error);
1620 g_io_add_watch (priv->from_server_channel, G_IO_IN, from_server_cb, greeter);
1623 g_warning ("No LIGHTDM_FROM_SERVER_FD environment variable");
1627 lightdm_greeter_set_property (GObject *object,
1629 const GValue *value,
1632 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1636 lightdm_greeter_get_property (GObject *object,
1641 LightDMGreeter *self;
1643 self = LIGHTDM_GREETER (object);
1646 case PROP_DEFAULT_SESSION_HINT:
1647 g_value_set_string (value, lightdm_greeter_get_default_session_hint (self));
1649 case PROP_HIDE_USERS_HINT:
1650 g_value_set_boolean (value, lightdm_greeter_get_hide_users_hint (self));
1652 case PROP_SHOW_MANUAL_LOGIN_HINT:
1653 g_value_set_boolean (value, lightdm_greeter_get_show_manual_login_hint (self));
1655 case PROP_SHOW_REMOTE_LOGIN_HINT:
1656 g_value_set_boolean (value, lightdm_greeter_get_show_remote_login_hint (self));
1658 case PROP_LOCK_HINT:
1659 g_value_set_boolean (value, lightdm_greeter_get_lock_hint (self));
1661 case PROP_HAS_GUEST_ACCOUNT_HINT:
1662 g_value_set_boolean (value, lightdm_greeter_get_has_guest_account_hint (self));
1664 case PROP_SELECT_USER_HINT:
1665 g_value_set_string (value, lightdm_greeter_get_select_user_hint (self));
1667 case PROP_SELECT_GUEST_HINT:
1668 g_value_set_boolean (value, lightdm_greeter_get_select_guest_hint (self));
1670 case PROP_AUTOLOGIN_USER_HINT:
1671 g_value_set_string (value, lightdm_greeter_get_autologin_user_hint (self));
1673 case PROP_AUTOLOGIN_GUEST_HINT:
1674 g_value_set_boolean (value, lightdm_greeter_get_autologin_guest_hint (self));
1676 case PROP_AUTOLOGIN_TIMEOUT_HINT:
1677 g_value_set_int (value, lightdm_greeter_get_autologin_timeout_hint (self));
1679 case PROP_AUTHENTICATION_USER:
1680 g_value_set_string (value, lightdm_greeter_get_authentication_user (self));
1682 case PROP_IN_AUTHENTICATION:
1683 g_value_set_boolean (value, lightdm_greeter_get_in_authentication (self));
1685 case PROP_IS_AUTHENTICATED:
1686 g_value_set_boolean (value, lightdm_greeter_get_is_authenticated (self));
1689 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1695 lightdm_greeter_finalize (GObject *object)
1697 LightDMGreeter *self = LIGHTDM_GREETER (object);
1698 LightDMGreeterPrivate *priv = GET_PRIVATE (self);
1700 if (priv->to_server_channel)
1701 g_io_channel_unref (priv->to_server_channel);
1702 if (priv->from_server_channel)
1703 g_io_channel_unref (priv->from_server_channel);
1704 g_free (priv->authentication_user);
1705 g_hash_table_unref (priv->hints);
1707 G_OBJECT_CLASS (lightdm_greeter_parent_class)->finalize (object);
1711 lightdm_greeter_class_init (LightDMGreeterClass *klass)
1713 GObjectClass *object_class = G_OBJECT_CLASS (klass);
1715 g_type_class_add_private (klass, sizeof (LightDMGreeterPrivate));
1717 object_class->set_property = lightdm_greeter_set_property;
1718 object_class->get_property = lightdm_greeter_get_property;
1719 object_class->finalize = lightdm_greeter_finalize;
1721 g_object_class_install_property (object_class,
1722 PROP_DEFAULT_SESSION_HINT,
1723 g_param_spec_string ("default-session-hint",
1724 "default-session-hint",
1725 "Default session hint",
1729 g_object_class_install_property (object_class,
1730 PROP_HIDE_USERS_HINT,
1731 g_param_spec_boolean ("hide-users-hint",
1737 g_object_class_install_property (object_class,
1738 PROP_SHOW_MANUAL_LOGIN_HINT,
1739 g_param_spec_boolean ("show-manual-login-hint",
1740 "show-manual-login-hint",
1741 "Show manual login hint",
1745 g_object_class_install_property (object_class,
1746 PROP_SHOW_REMOTE_LOGIN_HINT,
1747 g_param_spec_boolean ("show-remote-login-hint",
1748 "show-remote-login-hint",
1749 "Show remote login hint",
1753 g_object_class_install_property (object_class,
1755 g_param_spec_boolean ("lock-hint",
1761 g_object_class_install_property (object_class,
1762 PROP_HAS_GUEST_ACCOUNT_HINT,
1763 g_param_spec_boolean ("has-guest-account-hint",
1764 "has-guest-account-hint",
1765 "Has guest account hint",
1769 g_object_class_install_property (object_class,
1770 PROP_SELECT_USER_HINT,
1771 g_param_spec_string ("select-user-hint",
1777 g_object_class_install_property (object_class,
1778 PROP_SELECT_GUEST_HINT,
1779 g_param_spec_boolean ("select-guest-hint",
1780 "select-guest-hint",
1781 "Select guest account hint",
1785 g_object_class_install_property (object_class,
1786 PROP_AUTOLOGIN_USER_HINT,
1787 g_param_spec_string ("autologin-user-hint",
1788 "autologin-user-hint",
1789 "Autologin user hint",
1793 g_object_class_install_property (object_class,
1794 PROP_AUTOLOGIN_GUEST_HINT,
1795 g_param_spec_boolean ("autologin-guest-hint",
1796 "autologin-guest-hint",
1797 "Autologin guest account hint",
1801 g_object_class_install_property (object_class,
1802 PROP_AUTOLOGIN_TIMEOUT_HINT,
1803 g_param_spec_int ("autologin-timeout-hint",
1804 "autologin-timeout-hint",
1805 "Autologin timeout hint",
1809 g_object_class_install_property (object_class,
1810 PROP_AUTHENTICATION_USER,
1811 g_param_spec_string ("authentication-user",
1812 "authentication-user",
1813 "The user being authenticated",
1816 g_object_class_install_property (object_class,
1817 PROP_IN_AUTHENTICATION,
1818 g_param_spec_boolean ("in-authentication",
1819 "in-authentication",
1820 "TRUE if a user is being authenticated",
1823 g_object_class_install_property (object_class,
1824 PROP_IS_AUTHENTICATED,
1825 g_param_spec_boolean ("is-authenticated",
1827 "TRUE if the selected user is authenticated",
1832 * LightDMGreeter::show-prompt:
1833 * @greeter: A #LightDMGreeter
1834 * @text: Prompt text
1835 * @type: Prompt type
1837 * The ::show-prompt signal gets emitted when the greeter should show a
1838 * prompt to the user. The given text should be displayed and an input
1839 * field for the user to provide a response.
1841 * Call lightdm_greeter_respond() with the resultant input or
1842 * lightdm_greeter_cancel_authentication() to abort the authentication.
1844 signals[SHOW_PROMPT] =
1845 g_signal_new (LIGHTDM_GREETER_SIGNAL_SHOW_PROMPT,
1846 G_TYPE_FROM_CLASS (klass),
1848 G_STRUCT_OFFSET (LightDMGreeterClass, show_prompt),
1851 G_TYPE_NONE, 2, G_TYPE_STRING, lightdm_prompt_type_get_type ());
1854 * LightDMGreeter::show-message:
1855 * @greeter: A #LightDMGreeter
1856 * @text: Message text
1857 * @type: Message type
1859 * The ::show-message signal gets emitted when the greeter
1860 * should show a message to the user.
1862 signals[SHOW_MESSAGE] =
1863 g_signal_new (LIGHTDM_GREETER_SIGNAL_SHOW_MESSAGE,
1864 G_TYPE_FROM_CLASS (klass),
1866 G_STRUCT_OFFSET (LightDMGreeterClass, show_message),
1869 G_TYPE_NONE, 2, G_TYPE_STRING, lightdm_message_type_get_type ());
1872 * LightDMGreeter::authentication-complete:
1873 * @greeter: A #LightDMGreeter
1875 * The ::authentication-complete signal gets emitted when the greeter
1876 * has completed authentication.
1878 * Call lightdm_greeter_get_is_authenticated() to check if the authentication
1881 signals[AUTHENTICATION_COMPLETE] =
1882 g_signal_new (LIGHTDM_GREETER_SIGNAL_AUTHENTICATION_COMPLETE,
1883 G_TYPE_FROM_CLASS (klass),
1885 G_STRUCT_OFFSET (LightDMGreeterClass, authentication_complete),
1891 * LightDMGreeter::autologin-timer-expired:
1892 * @greeter: A #LightDMGreeter
1894 * The ::timed-login signal gets emitted when the automatic login timer has expired.
1895 * The application should then call lightdm_greeter_login().
1897 signals[AUTOLOGIN_TIMER_EXPIRED] =
1898 g_signal_new (LIGHTDM_GREETER_SIGNAL_AUTOLOGIN_TIMER_EXPIRED,
1899 G_TYPE_FROM_CLASS (klass),
1901 G_STRUCT_OFFSET (LightDMGreeterClass, autologin_timer_expired),
1907 * LightDMGreeter::idle:
1908 * @greeter: A #LightDMGreeter
1910 * The ::idle signal gets emitted when the user has logged in and the
1911 * greeter is no longer needed.
1913 * This signal only matters if the greeter has marked itself as
1914 * resettable using lightdm_greeter_set_resettable().
1917 g_signal_new (LIGHTDM_GREETER_SIGNAL_IDLE,
1918 G_TYPE_FROM_CLASS (klass),
1920 G_STRUCT_OFFSET (LightDMGreeterClass, idle),
1926 * LightDMGreeter::reset:
1927 * @greeter: A #LightDMGreeter
1929 * The ::reset signal gets emitted when the user is returning to a greeter
1930 * that was previously marked idle.
1932 * This signal only matters if the greeter has marked itself as
1933 * resettable using lightdm_greeter_set_resettable().
1936 g_signal_new (LIGHTDM_GREETER_SIGNAL_RESET,
1937 G_TYPE_FROM_CLASS (klass),
1939 G_STRUCT_OFFSET (LightDMGreeterClass, reset),
1946 request_init (Request *request)
1951 request_finalize (GObject *object)
1953 Request *request = REQUEST (object);
1955 g_free (request->dir);
1956 g_clear_object (&request->cancellable);
1958 G_OBJECT_CLASS (request_parent_class)->finalize (object);
1962 request_class_init (RequestClass *klass)
1964 GObjectClass *object_class = G_OBJECT_CLASS (klass);
1965 object_class->finalize = request_finalize;
1969 request_get_user_data (GAsyncResult *result)
1971 return REQUEST (result)->user_data;
1975 request_get_source_object (GAsyncResult *res)
1981 request_iface_init (GAsyncResultIface *iface)
1983 iface->get_user_data = request_get_user_data;
1984 iface->get_source_object = request_get_source_object;