/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- * * Copyright (C) 2012 Red Hat, Inc. * Copyright (C) 2012 Giovanni Campagna * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * */ #include "config.h" #include #include #include #include #include #include #include #include "gdm-client.h" #include "gdm-client-glue.h" #include "gdm-manager-glue.h" #define SESSION_DBUS_PATH "/org/gnome/DisplayManager/Session" struct _GdmClient { GObject parent; GdmUserVerifier *user_verifier; GdmUserVerifier *user_verifier_for_reauth; GHashTable *user_verifier_extensions; GdmGreeter *greeter; GdmRemoteGreeter *remote_greeter; GdmChooser *chooser; char **enabled_extensions; }; static void gdm_client_finalize (GObject *object); G_DEFINE_TYPE (GdmClient, gdm_client, G_TYPE_OBJECT); static gpointer client_object = NULL; GQuark gdm_client_error_quark (void) { static GQuark error_quark = 0; if (error_quark == 0) error_quark = g_quark_from_static_string ("gdm-client"); return error_quark; } static GDBusConnection * gdm_client_get_open_connection (GdmClient *client) { GDBusProxy *proxy = NULL; if (client->user_verifier != NULL) { proxy = G_DBUS_PROXY (client->user_verifier); } else if (client->greeter != NULL) { proxy = G_DBUS_PROXY (client->greeter); } else if (client->remote_greeter != NULL) { proxy = G_DBUS_PROXY (client->remote_greeter); } else if (client->chooser != NULL) { proxy = G_DBUS_PROXY (client->chooser); } if (proxy != NULL) { return g_dbus_proxy_get_connection (proxy); } return NULL; } static void on_got_manager (GObject *object, GAsyncResult *result, gpointer user_data) { g_autoptr(GTask) task = user_data; g_autoptr(GdmClient) client = NULL; g_autoptr(GdmManager) manager = NULL; g_autoptr(GError) error = NULL; client = GDM_CLIENT (g_async_result_get_source_object (G_ASYNC_RESULT (task))); manager = gdm_manager_proxy_new_finish (result, &error); if (error != NULL) { g_task_return_error (task, g_steal_pointer (&error)); } else { g_task_return_pointer (task, g_steal_pointer (&manager), (GDestroyNotify) g_object_unref); } } static void get_manager (GdmClient *client, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data) { GTask *task; task = g_task_new (G_OBJECT (client), cancellable, callback, user_data); gdm_manager_proxy_new_for_bus (G_BUS_TYPE_SYSTEM, G_DBUS_PROXY_FLAGS_NONE, "org.gnome.DisplayManager", "/org/gnome/DisplayManager/Manager", cancellable, on_got_manager, task); } typedef struct { GTask *task; GdmUserVerifier *user_verifier; } UserVerifierData; static UserVerifierData * user_verifier_data_new (GTask *task, GdmUserVerifier *user_verifier) { UserVerifierData *data; data = g_slice_new (UserVerifierData); data->task = g_object_ref (task); data->user_verifier = g_object_ref (user_verifier); return data; } static void user_verifier_data_free (UserVerifierData *data) { g_object_unref (data->task); g_object_unref (data->user_verifier); g_slice_free (UserVerifierData, data); } static void complete_user_verifier_proxy_operation (GdmClient *client, UserVerifierData *data) { g_task_return_pointer (data->task, g_object_ref (data->user_verifier), (GDestroyNotify) g_object_unref); user_verifier_data_free (data); } static void maybe_complete_user_verifier_proxy_operation (GdmClient *client, UserVerifierData *data) { GHashTable *user_verifier_extensions; GHashTableIter iter; gpointer key, value; user_verifier_extensions = g_object_get_data (G_OBJECT (data->user_verifier), "gdm-client-user-verifier-extensions"); if (user_verifier_extensions != NULL) { g_hash_table_iter_init (&iter, user_verifier_extensions); while (g_hash_table_iter_next (&iter, &key, &value)) { if (value == NULL) return; } } complete_user_verifier_proxy_operation (client, data); } static void on_user_verifier_choice_list_proxy_created (GObject *source, GAsyncResult *result, UserVerifierData *data) { GHashTable *user_verifier_extensions; g_autoptr(GdmClient) client = NULL; GdmUserVerifierChoiceList *choice_list; g_autoptr(GError) error = NULL; client = GDM_CLIENT (g_async_result_get_source_object (G_ASYNC_RESULT (data->task))); user_verifier_extensions = g_object_get_data (G_OBJECT (data->user_verifier), "gdm-client-user-verifier-extensions"); choice_list = gdm_user_verifier_choice_list_proxy_new_finish (result, &error); if (choice_list == NULL) { g_debug ("Couldn't create UserVerifier ChoiceList proxy: %s", error->message); g_hash_table_remove (user_verifier_extensions, gdm_user_verifier_choice_list_interface_info ()->name); } else { g_hash_table_replace (user_verifier_extensions, gdm_user_verifier_choice_list_interface_info ()->name, choice_list); } maybe_complete_user_verifier_proxy_operation (client, data); } static void on_user_verifier_extensions_enabled (GdmUserVerifier *user_verifier, GAsyncResult *result, UserVerifierData *data) { g_autoptr(GdmClient) client = NULL; GHashTable *user_verifier_extensions; GCancellable *cancellable; GDBusConnection *connection; g_autoptr(GError) error = NULL; size_t i; client = GDM_CLIENT (g_async_result_get_source_object (G_ASYNC_RESULT (data->task))); cancellable = g_task_get_cancellable (data->task); user_verifier_extensions = g_object_get_data (G_OBJECT (user_verifier), "gdm-client-user-verifier-extensions"); gdm_user_verifier_call_enable_extensions_finish (user_verifier, result, &error); if (error != NULL) { g_debug ("Couldn't enable user verifier extensions: %s", error->message); complete_user_verifier_proxy_operation (client, data); return; } connection = g_dbus_proxy_get_connection (G_DBUS_PROXY (user_verifier)); for (i = 0; client->enabled_extensions[i] != NULL; i++) { g_debug ("Enabled extensions[%lu] = %s", i, client->enabled_extensions[i]); g_hash_table_insert (user_verifier_extensions, client->enabled_extensions[i], NULL); if (strcmp (client->enabled_extensions[i], gdm_user_verifier_choice_list_interface_info ()->name) == 0) { g_hash_table_insert (user_verifier_extensions, client->enabled_extensions[i], NULL); gdm_user_verifier_choice_list_proxy_new (connection, G_DBUS_PROXY_FLAGS_NONE, NULL, SESSION_DBUS_PATH, cancellable, (GAsyncReadyCallback) on_user_verifier_choice_list_proxy_created, data); } else { g_debug ("User verifier extension %s is unsupported", client->enabled_extensions[i]); g_hash_table_remove (user_verifier_extensions, client->enabled_extensions[i]); } } if (g_hash_table_size (user_verifier_extensions) == 0) { g_debug ("No supported user verifier extensions"); complete_user_verifier_proxy_operation (client, data); } } static void free_interface_skeleton (GDBusInterfaceSkeleton *interface) { if (interface == NULL) return; g_object_unref (interface); } static void on_user_verifier_proxy_created (GObject *source, GAsyncResult *result, gpointer user_data) { g_autoptr(GdmClient) self = NULL; GHashTable *user_verifier_extensions; GCancellable *cancellable = NULL; g_autoptr(GdmUserVerifier) user_verifier = NULL; g_autoptr(GTask) task = user_data; g_autoptr(GError) error = NULL; user_verifier = gdm_user_verifier_proxy_new_finish (result, &error); if (user_verifier == NULL) { g_task_return_error (task, g_steal_pointer (&error)); return; } g_debug ("UserVerifier %p created", user_verifier); self = GDM_CLIENT (g_async_result_get_source_object (G_ASYNC_RESULT (task))); if (self->enabled_extensions == NULL) { g_debug ("no enabled extensions"); g_task_return_pointer (task, g_steal_pointer (&user_verifier), (GDestroyNotify) g_object_unref); return; } user_verifier_extensions = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, (GDestroyNotify) free_interface_skeleton); g_object_set_data_full (G_OBJECT (user_verifier), "gdm-client-user-verifier-extensions", user_verifier_extensions, (GDestroyNotify) g_hash_table_unref); cancellable = g_task_get_cancellable (task); gdm_user_verifier_call_enable_extensions (user_verifier, (const char * const *) self->enabled_extensions, cancellable, (GAsyncReadyCallback) on_user_verifier_extensions_enabled, user_verifier_data_new (task, user_verifier)); } static void on_reauthentication_channel_connected (GObject *source_object, GAsyncResult *result, gpointer user_data) { GCancellable *cancellable; g_autoptr(GTask) task = user_data; g_autoptr(GDBusConnection) connection = NULL; g_autoptr(GError) error = NULL; connection = g_dbus_connection_new_for_address_finish (result, &error); if (!connection) { g_task_return_error (task, g_steal_pointer (&error)); return; } cancellable = g_task_get_cancellable (task); gdm_user_verifier_proxy_new (connection, G_DBUS_PROXY_FLAGS_NONE, NULL, SESSION_DBUS_PATH, cancellable, on_user_verifier_proxy_created, g_steal_pointer (&task)); } static void on_reauthentication_channel_opened (GdmManager *manager, GAsyncResult *result, gpointer user_data) { GCancellable *cancellable; g_autoptr(GTask) task = user_data; g_autoptr(GError) error = NULL; g_autofree char *address = NULL; if (!gdm_manager_call_open_reauthentication_channel_finish (manager, &address, result, &error)) { g_task_return_error (task, g_steal_pointer (&error)); return; } cancellable = g_task_get_cancellable (task); g_dbus_connection_new_for_address (address, G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT, NULL, cancellable, on_reauthentication_channel_connected, g_steal_pointer (&task)); } static void on_got_manager_for_reauthentication (GdmClient *client, GAsyncResult *result, gpointer user_data) { GCancellable *cancellable; const char *username; g_autoptr(GTask) task = user_data; g_autoptr(GdmManager) manager = NULL; g_autoptr(GError) error = NULL; manager = g_task_propagate_pointer (G_TASK (result), &error); if (manager == NULL) { g_task_return_error (task, g_steal_pointer (&error)); return; } cancellable = g_task_get_cancellable (task); username = g_object_get_data (G_OBJECT (task), "username"); gdm_manager_call_open_reauthentication_channel (manager, username, cancellable, (GAsyncReadyCallback) on_reauthentication_channel_opened, g_steal_pointer (&task)); } static GDBusConnection * gdm_client_get_connection_sync (GdmClient *client, GCancellable *cancellable, GError **error) { g_autoptr(GdmManager) manager = NULL; g_autofree char *address = NULL; GDBusConnection *connection; gboolean ret; g_return_val_if_fail (GDM_IS_CLIENT (client), NULL); connection = gdm_client_get_open_connection (client); if (connection != NULL) { return g_object_ref (connection); } manager = gdm_manager_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM, G_DBUS_PROXY_FLAGS_NONE, "org.gnome.DisplayManager", "/org/gnome/DisplayManager/Manager", cancellable, error); if (manager == NULL) { return NULL; } ret = gdm_manager_call_open_session_sync (manager, &address, cancellable, error); if (!ret) { return NULL; } g_debug ("GdmClient: connecting to address: %s", address); connection = g_dbus_connection_new_for_address_sync (address, G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT, NULL, cancellable, error); return connection; } static GDBusConnection * gdm_client_get_connection_finish (GdmClient *client, GAsyncResult *result, GError **error) { GDBusConnection *connection; g_return_val_if_fail (GDM_IS_CLIENT (client), NULL); connection = g_task_propagate_pointer (G_TASK (result), error); if (connection == NULL) { return NULL; } return connection; } static void gdm_client_get_connection (GdmClient *client, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data) { g_autoptr(GTask) task = NULL; g_autoptr(GError) error = NULL; GDBusConnection *connection; g_return_if_fail (GDM_IS_CLIENT (client)); task = g_task_new (G_OBJECT (client), cancellable, callback, user_data); connection = gdm_client_get_connection_sync (client, cancellable, &error); if (connection != NULL) { g_task_return_pointer (task, g_object_ref (connection), (GDestroyNotify) g_object_unref); } else { g_task_return_error (task, g_steal_pointer (&error)); } } /** * gdm_client_open_reauthentication_channel_sync: * @client: a #GdmClient * @username: user to reauthenticate * @cancellable: a #GCancellable * @error: a #GError * * Gets a #GdmUserVerifier object that can be used to * reauthenticate an already logged in user. Free with * g_object_unref to close reauthentication channel. * * Returns: (transfer full): #GdmUserVerifier or %NULL if @username is not * already logged in. */ GdmUserVerifier * gdm_client_open_reauthentication_channel_sync (GdmClient *client, const char *username, GCancellable *cancellable, GError **error) { g_autoptr(GDBusConnection) connection = NULL; g_autoptr(GdmManager) manager = NULL; g_autofree char *address = NULL; GdmUserVerifier *user_verifier = NULL; gboolean ret; g_return_val_if_fail (GDM_IS_CLIENT (client), NULL); manager = gdm_manager_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM, G_DBUS_PROXY_FLAGS_NONE, "org.gnome.DisplayManager", "/org/gnome/DisplayManager/Manager", cancellable, error); if (manager == NULL) { return NULL; } ret = gdm_manager_call_open_reauthentication_channel_sync (manager, username, &address, cancellable, error); if (!ret) { return NULL; } g_debug ("GdmClient: connecting to address: %s", address); connection = g_dbus_connection_new_for_address_sync (address, G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT, NULL, cancellable, error); if (connection == NULL) { return NULL; } user_verifier = gdm_user_verifier_proxy_new_sync (connection, G_DBUS_PROXY_FLAGS_NONE, NULL, SESSION_DBUS_PATH, cancellable, error); g_set_weak_pointer (&client->user_verifier_for_reauth, user_verifier); return user_verifier; } /** * gdm_client_open_reauthentication_channel: * @client: a #GdmClient * @username: user to reauthenticate * @callback: a #GAsyncReadyCallback to call when the request is satisfied * @user_data: The data to pass to @callback * @cancellable: a #GCancellable * * Gets a #GdmUserVerifier object that can be used to * reauthenticate an already logged in user. */ void gdm_client_open_reauthentication_channel (GdmClient *client, const char *username, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data) { GTask *task; g_return_if_fail (GDM_IS_CLIENT (client)); task = g_task_new (G_OBJECT (client), cancellable, callback, user_data); g_object_set_data_full (G_OBJECT (task), "username", g_strdup (username), (GDestroyNotify) g_free); get_manager (client, cancellable, (GAsyncReadyCallback) on_got_manager_for_reauthentication, task); } /** * gdm_client_open_reauthentication_channel_finish: * @client: a #GdmClient * @result: The #GAsyncResult from the callback * @error: a #GError * * Finishes an operation started with * gdm_client_open_reauthentication_channel(). * * Returns: (transfer full): a #GdmUserVerifier */ GdmUserVerifier * gdm_client_open_reauthentication_channel_finish (GdmClient *client, GAsyncResult *result, GError **error) { GdmUserVerifier *user_verifier; g_return_val_if_fail (GDM_IS_CLIENT (client), NULL); user_verifier = g_task_propagate_pointer (G_TASK (result), error); g_set_weak_pointer (&client->user_verifier_for_reauth, user_verifier); return user_verifier; } /** * gdm_client_get_user_verifier_sync: * @client: a #GdmClient * @cancellable: a #GCancellable * @error: a #GError * * Gets a #GdmUserVerifier object that can be used to * verify a user's local account. * * Returns: (transfer full): #GdmUserVerifier or %NULL if not connected */ GdmUserVerifier * gdm_client_get_user_verifier_sync (GdmClient *client, GCancellable *cancellable, GError **error) { g_autoptr(GDBusConnection) connection = NULL; GdmUserVerifier *user_verifier; if (client->user_verifier != NULL) { return g_object_ref (client->user_verifier); } connection = gdm_client_get_connection_sync (client, cancellable, error); if (connection == NULL) { return NULL; } user_verifier = gdm_user_verifier_proxy_new_sync (connection, G_DBUS_PROXY_FLAGS_NONE, NULL, SESSION_DBUS_PATH, cancellable, error); g_set_weak_pointer (&client->user_verifier, user_verifier); if (client->user_verifier != NULL) { if (client->enabled_extensions != NULL) { GHashTable *user_verifier_extensions; gboolean res; user_verifier_extensions = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, (GDestroyNotify) free_interface_skeleton); g_object_set_data_full (G_OBJECT (client->user_verifier), "gdm-client-user-verifier-extensions", user_verifier_extensions, (GDestroyNotify) g_hash_table_unref); res = gdm_user_verifier_call_enable_extensions_sync (client->user_verifier, (const char * const *) client->enabled_extensions, cancellable, NULL); if (res) { size_t i; for (i = 0; client->enabled_extensions[i] != NULL; i++) { if (strcmp (client->enabled_extensions[i], gdm_user_verifier_choice_list_interface_info ()->name) == 0) { GdmUserVerifierChoiceList *choice_list_interface; choice_list_interface = gdm_user_verifier_choice_list_proxy_new_sync (connection, G_DBUS_PROXY_FLAGS_NONE, NULL, SESSION_DBUS_PATH, cancellable, NULL); if (choice_list_interface != NULL) g_hash_table_insert (user_verifier_extensions, client->enabled_extensions[i], choice_list_interface); } } } } } return client->user_verifier; } static void on_connection_for_user_verifier (GdmClient *client, GAsyncResult *result, gpointer user_data) { GCancellable *cancellable; g_autoptr(GTask) task = user_data; g_autoptr(GDBusConnection) connection = NULL; g_autoptr(GError) error = NULL; connection = gdm_client_get_connection_finish (client, result, &error); if (connection == NULL) { g_task_return_error (task, g_steal_pointer (&error)); return; } cancellable = g_task_get_cancellable (task); gdm_user_verifier_proxy_new (connection, G_DBUS_PROXY_FLAGS_NONE, NULL, SESSION_DBUS_PATH, cancellable, on_user_verifier_proxy_created, g_steal_pointer (&task)); } /** * gdm_client_get_user_verifier: * @client: a #GdmClient * @callback: a #GAsyncReadyCallback to call when the request is satisfied * @user_data: The data to pass to @callback * @cancellable: a #GCancellable * * Gets a #GdmUserVerifier object that can be used to * verify a user's local account. */ void gdm_client_get_user_verifier (GdmClient *client, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data) { g_autoptr(GTask) task = NULL; g_return_if_fail (GDM_IS_CLIENT (client)); task = g_task_new (G_OBJECT (client), cancellable, callback, user_data); if (client->user_verifier != NULL) { g_task_return_pointer (task, g_object_ref (client->user_verifier), (GDestroyNotify) g_object_unref); return; } gdm_client_get_connection (client, cancellable, (GAsyncReadyCallback) on_connection_for_user_verifier, g_steal_pointer (&task)); } /** * gdm_client_get_user_verifier_finish: * @client: a #GdmClient * @result: The #GAsyncResult from the callback * @error: a #GError * * Finishes an operation started with * gdm_client_get_user_verifier(). * * Returns: (transfer full): a #GdmUserVerifier */ GdmUserVerifier * gdm_client_get_user_verifier_finish (GdmClient *client, GAsyncResult *result, GError **error) { GdmUserVerifier *user_verifier; g_return_val_if_fail (GDM_IS_CLIENT (client), NULL); if (client->user_verifier != NULL) return g_object_ref (client->user_verifier); user_verifier = g_task_propagate_pointer (G_TASK (result), error); if (user_verifier == NULL) return NULL; g_set_weak_pointer (&client->user_verifier, user_verifier); return user_verifier; } /** * gdm_client_get_user_verifier_choice_list: * @client: a #GdmClient * * Gets a #GdmUserVerifierChoiceList object that can be used to * verify a user's local account. * * Returns: (transfer none): #GdmUserVerifierChoiceList or %NULL if user * verifier isn't yet fetched, or daemon doesn't support choice lists */ GdmUserVerifierChoiceList * gdm_client_get_user_verifier_choice_list (GdmClient *client) { GHashTable *user_verifier_extensions = NULL; if (client->user_verifier_for_reauth != NULL) user_verifier_extensions = g_object_get_data (G_OBJECT (client->user_verifier_for_reauth), "gdm-client-user-verifier-extensions"); if (user_verifier_extensions == NULL && client->user_verifier != NULL) user_verifier_extensions = g_object_get_data (G_OBJECT (client->user_verifier), "gdm-client-user-verifier-extensions"); if (user_verifier_extensions == NULL) return NULL; return g_hash_table_lookup (user_verifier_extensions, gdm_user_verifier_choice_list_interface_info ()->name); } static void on_timed_login_details_got (GdmGreeter *greeter, GAsyncResult *result) { gdm_greeter_call_get_timed_login_details_finish (greeter, NULL, NULL, NULL, result, NULL); } static void query_for_timed_login_requested_signal (GdmGreeter *greeter) { /* This just makes sure a timed-login-requested signal gets fired * off if appropriate. */ gdm_greeter_call_get_timed_login_details (greeter, NULL, (GAsyncReadyCallback) on_timed_login_details_got, NULL); } static void on_greeter_proxy_created (GObject *source, GAsyncResult *result, gpointer user_data) { g_autoptr(GTask) task = user_data; g_autoptr(GError) error = NULL; GdmGreeter *greeter; greeter = gdm_greeter_proxy_new_finish (result, &error); if (greeter == NULL) { g_task_return_error (task, g_steal_pointer (&error)); return; } g_task_return_pointer (task, greeter, (GDestroyNotify) g_object_unref); query_for_timed_login_requested_signal (greeter); } static void on_connection_for_greeter (GdmClient *client, GAsyncResult *result, gpointer user_data) { GCancellable *cancellable; g_autoptr(GTask) task = user_data; g_autoptr(GDBusConnection) connection = NULL; g_autoptr(GError) error = NULL; connection = gdm_client_get_connection_finish (client, result, &error); if (connection == NULL) { g_task_return_error (task, g_steal_pointer (&error)); return; } cancellable = g_task_get_cancellable (task); gdm_greeter_proxy_new (connection, G_DBUS_PROXY_FLAGS_NONE, NULL, SESSION_DBUS_PATH, cancellable, on_greeter_proxy_created, g_steal_pointer (&task)); } /** * gdm_client_get_greeter: * @client: a #GdmClient * @callback: a #GAsyncReadyCallback to call when the request is satisfied * @user_data: The data to pass to @callback * @cancellable: a #GCancellable * * Gets a #GdmGreeter object that can be used to * verify a user's local account. */ void gdm_client_get_greeter (GdmClient *client, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data) { g_autoptr(GTask) task = NULL; g_return_if_fail (GDM_IS_CLIENT (client)); task = g_task_new (G_OBJECT (client), cancellable, callback, user_data); if (client->greeter != NULL) { g_task_return_pointer (task, g_object_ref (client->greeter), (GDestroyNotify) g_object_unref); return; } gdm_client_get_connection (client, cancellable, (GAsyncReadyCallback) on_connection_for_greeter, g_steal_pointer (&task)); } /** * gdm_client_get_greeter_finish: * @client: a #GdmClient * @result: The #GAsyncResult from the callback * @error: a #GError * * Finishes an operation started with * gdm_client_get_greeter(). * * Returns: (transfer full): a #GdmGreeter */ GdmGreeter * gdm_client_get_greeter_finish (GdmClient *client, GAsyncResult *result, GError **error) { GdmGreeter *greeter; g_return_val_if_fail (GDM_IS_CLIENT (client), NULL); if (client->greeter != NULL) return g_object_ref (client->greeter); greeter = g_task_propagate_pointer (G_TASK (result), error); if (greeter == NULL) return NULL; g_set_weak_pointer (&client->greeter, greeter); return greeter; } /** * gdm_client_get_greeter_sync: * @client: a #GdmClient * @cancellable: a #GCancellable * @error: a #GError * * Gets a #GdmGreeter object that can be used * to do do various login screen related tasks, such * as selecting a users session, and starting that * session. * * Returns: (transfer full): #GdmGreeter or %NULL if caller is not a greeter */ GdmGreeter * gdm_client_get_greeter_sync (GdmClient *client, GCancellable *cancellable, GError **error) { g_autoptr(GDBusConnection) connection = NULL; GdmGreeter *greeter; if (client->greeter != NULL) { return g_object_ref (client->greeter); } connection = gdm_client_get_connection_sync (client, cancellable, error); if (connection == NULL) { return NULL; } greeter = gdm_greeter_proxy_new_sync (connection, G_DBUS_PROXY_FLAGS_NONE, NULL, SESSION_DBUS_PATH, cancellable, error); g_set_weak_pointer (&client->greeter, greeter); if (client->greeter != NULL) { query_for_timed_login_requested_signal (client->greeter); } return client->greeter; } static void on_remote_greeter_proxy_created (GObject *object, GAsyncResult *result, gpointer user_data) { g_autoptr(GTask) task = user_data; g_autoptr(GError) error = NULL; GdmRemoteGreeter *remote_greeter; remote_greeter = gdm_remote_greeter_proxy_new_finish (result, &error); if (remote_greeter == NULL) { g_task_return_error (task, g_steal_pointer (&error)); return; } g_task_return_pointer (task, remote_greeter, (GDestroyNotify) g_object_unref); } static void on_connection_for_remote_greeter (GdmClient *client, GAsyncResult *result, gpointer user_data) { GCancellable *cancellable; g_autoptr(GTask) task = user_data; g_autoptr(GDBusConnection) connection = NULL; g_autoptr(GError) error = NULL; connection = gdm_client_get_connection_finish (client, result, &error); if (connection == NULL) { g_task_return_error (task, g_steal_pointer (&error)); return; } cancellable = g_task_get_cancellable (task); gdm_remote_greeter_proxy_new (connection, G_DBUS_PROXY_FLAGS_NONE, NULL, SESSION_DBUS_PATH, cancellable, on_remote_greeter_proxy_created, g_steal_pointer (&task)); } /** * gdm_client_get_remote_greeter: * @client: a #GdmClient * @callback: a #GAsyncReadyCallback to call when the request is satisfied * @user_data: The data to pass to @callback * @cancellable: a #GCancellable * * Gets a #GdmRemoteGreeter object that can be used to * verify a user's local account. */ void gdm_client_get_remote_greeter (GdmClient *client, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data) { g_autoptr (GTask) task = NULL; g_return_if_fail (GDM_IS_CLIENT (client)); task = g_task_new (G_OBJECT (client), cancellable, callback, user_data); if (client->remote_greeter != NULL) { g_task_return_pointer (task, g_object_ref (client->remote_greeter), (GDestroyNotify) g_object_unref); return; } gdm_client_get_connection (client, cancellable, (GAsyncReadyCallback) on_connection_for_remote_greeter, g_steal_pointer (&task)); } /** * gdm_client_get_remote_greeter_finish: * @client: a #GdmClient * @result: The #GAsyncResult from the callback * @error: a #GError * * Finishes an operation started with * gdm_client_get_remote_greeter(). * * Returns: (transfer full): a #GdmRemoteGreeter */ GdmRemoteGreeter * gdm_client_get_remote_greeter_finish (GdmClient *client, GAsyncResult *result, GError **error) { GdmRemoteGreeter *remote_greeter; g_return_val_if_fail (GDM_IS_CLIENT (client), NULL); if (client->remote_greeter != NULL) return g_object_ref (client->remote_greeter); remote_greeter = g_task_propagate_pointer (G_TASK (result), error); if (remote_greeter == NULL) return NULL; g_set_weak_pointer (&client->remote_greeter, remote_greeter); return remote_greeter; } /** * gdm_client_get_remote_greeter_sync: * @client: a #GdmClient * @cancellable: a #GCancellable * @error: a #GError * * Gets a #GdmRemoteGreeter object that can be used * to do do various remote login screen related tasks, * such as disconnecting. * * Returns: (transfer full): #GdmRemoteGreeter or %NULL if caller is not remote */ GdmRemoteGreeter * gdm_client_get_remote_greeter_sync (GdmClient *client, GCancellable *cancellable, GError **error) { g_autoptr(GDBusConnection) connection = NULL; GdmRemoteGreeter *remote_greeter; if (client->remote_greeter != NULL) { return g_object_ref (client->remote_greeter); } connection = gdm_client_get_connection_sync (client, cancellable, error); if (connection == NULL) { return NULL; } remote_greeter = gdm_remote_greeter_proxy_new_sync (connection, G_DBUS_PROXY_FLAGS_NONE, NULL, SESSION_DBUS_PATH, cancellable, error); g_set_weak_pointer (&client->remote_greeter, remote_greeter); return client->remote_greeter; } static void on_chooser_proxy_created (GObject *source, GAsyncResult *result, gpointer user_data) { GdmChooser *chooser; g_autoptr(GTask) task = user_data; g_autoptr(GError) error = NULL; chooser = gdm_chooser_proxy_new_finish (result, &error); if (chooser == NULL) { g_task_return_error (task, g_steal_pointer (&error)); return; } g_task_return_pointer (task, chooser, (GDestroyNotify) g_object_unref); } static void on_connection_for_chooser (GdmClient *client, GAsyncResult *result, gpointer user_data) { GCancellable *cancellable; g_autoptr(GTask) task = user_data; g_autoptr(GDBusConnection) connection = NULL; g_autoptr(GError) error = NULL; connection = gdm_client_get_connection_finish (client, result, &error); if (connection == NULL) { g_task_return_error (task, g_steal_pointer (&error)); return; } cancellable = g_task_get_cancellable (task); gdm_chooser_proxy_new (connection, G_DBUS_PROXY_FLAGS_NONE, NULL, SESSION_DBUS_PATH, cancellable, (GAsyncReadyCallback) on_chooser_proxy_created, g_steal_pointer (&task)); } /** * gdm_client_get_chooser: * @client: a #GdmClient * @callback: a #GAsyncReadyCallback to call when the request is satisfied * @user_data: The data to pass to @callback * @cancellable: a #GCancellable * * Gets a #GdmChooser object that can be used to * verify a user's local account. */ void gdm_client_get_chooser (GdmClient *client, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data) { g_autoptr(GTask) task = NULL; g_return_if_fail (GDM_IS_CLIENT (client)); task = g_task_new (G_OBJECT (client), cancellable, callback, user_data); if (client->chooser != NULL) { g_task_return_pointer (task, g_object_ref (client->chooser), (GDestroyNotify) g_object_unref); return; } gdm_client_get_connection (client, cancellable, (GAsyncReadyCallback) on_connection_for_chooser, g_steal_pointer (&task)); } /** * gdm_client_get_chooser_finish: * @client: a #GdmClient * @result: The #GAsyncResult from the callback * @error: a #GError * * Finishes an operation started with * gdm_client_get_chooser(). * * Returns: (transfer full): a #GdmChooser */ GdmChooser * gdm_client_get_chooser_finish (GdmClient *client, GAsyncResult *result, GError **error) { GdmChooser *chooser; g_return_val_if_fail (GDM_IS_CLIENT (client), NULL); if (client->chooser != NULL) return g_object_ref (client->chooser); chooser = g_task_propagate_pointer (G_TASK (result), error); if (chooser == NULL) return NULL; g_set_weak_pointer (&client->chooser, chooser); return chooser; } /** * gdm_client_get_chooser_sync: * @client: a #GdmClient * @cancellable: a #GCancellable * @error: a #GError * * Gets a #GdmChooser object that can be used * to do do various XDMCP chooser related tasks, such * as selecting a host or disconnecting. * * Returns: (transfer full): #GdmChooser or %NULL if caller is not a chooser */ GdmChooser * gdm_client_get_chooser_sync (GdmClient *client, GCancellable *cancellable, GError **error) { g_autoptr(GDBusConnection) connection = NULL; GdmChooser *chooser; if (client->chooser != NULL) { return g_object_ref (client->chooser); } connection = gdm_client_get_connection_sync (client, cancellable, error); if (connection == NULL) { return NULL; } chooser = gdm_chooser_proxy_new_sync (connection, G_DBUS_PROXY_FLAGS_NONE, NULL, SESSION_DBUS_PATH, cancellable, error); g_set_weak_pointer (&client->chooser, chooser); return client->chooser; } static void gdm_client_class_init (GdmClientClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); object_class->finalize = gdm_client_finalize; } static void gdm_client_init (GdmClient *client) { } static void gdm_client_finalize (GObject *object) { GdmClient *client; g_return_if_fail (object != NULL); g_return_if_fail (GDM_IS_CLIENT (object)); client = GDM_CLIENT (object); g_return_if_fail (client != NULL); g_clear_weak_pointer (&client->user_verifier); g_clear_weak_pointer (&client->user_verifier_for_reauth); g_clear_weak_pointer (&client->greeter); g_clear_weak_pointer (&client->remote_greeter); g_clear_weak_pointer (&client->chooser); g_strfreev (client->enabled_extensions); G_OBJECT_CLASS (gdm_client_parent_class)->finalize (object); } GdmClient * gdm_client_new (void) { if (client_object != NULL) { g_object_ref (client_object); } else { client_object = g_object_new (GDM_TYPE_CLIENT, NULL); g_object_add_weak_pointer (client_object, (gpointer *) &client_object); } return GDM_CLIENT (client_object); } /** * gdm_client_set_enabled_extensions: * @client: a #GdmClient * @extensions: (array zero-terminated=1) (element-type utf8): a list of extensions * * Enables GDM's pam extensions. Currently, only * org.gnome.DisplayManager.UserVerifier.ChoiceList is supported. */ void gdm_client_set_enabled_extensions (GdmClient *client, const char * const *extensions) { client->enabled_extensions = g_strdupv ((char **) extensions); }