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From f39b69c0495b9bdf83a5aeb05e7794c1b6b6ca86 Mon Sep 17 00:00:00 2001
From: Xiao-Long Chen <chenxiaolong@cxl.epac.to>
Date: Thu, 10 Apr 2014 22:19:02 -0400
Subject: [PATCH] Support setting/reading LightDM autologin setings
Author: Michael Terry <michael.terry@canonical.com>
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=40020
Bug-Ubuntu: https://launchpad.net/bugs/798962
Reviewed-by: Alessio Treglia <alessio@debian.org>
Last-Update: 2012-04-30
---
src/daemon.c | 159 +++++++++++++++++++++++++++++++++++++++++++++++++++++------
1 file changed, 145 insertions(+), 14 deletions(-)
diff --git a/src/daemon.c b/src/daemon.c
index e55ea9e..9051b9d 100644
--- a/src/daemon.c
+++ b/src/daemon.c
@@ -49,6 +49,7 @@
#define PATH_SHADOW "/etc/shadow"
#define PATH_GROUP "/etc/group"
#define PATH_GDM_CUSTOM "/etc/gdm/custom.conf"
+#define PATH_LIGHTDM_CONFIG "/etc/lightdm/lightdm.conf"
enum {
PROP_0,
@@ -67,6 +68,7 @@ struct DaemonPrivate {
GFileMonitor *shadow_monitor;
GFileMonitor *group_monitor;
GFileMonitor *gdm_monitor;
+ GFileMonitor *lightdm_monitor;
GFileMonitor *wtmp_monitor;
guint reload_id;
@@ -534,9 +536,19 @@ daemon_init (Daemon *daemon)
wtmp_helper_get_path_for_monitor (),
on_users_monitor_changed);
- daemon->priv->gdm_monitor = setup_monitor (daemon,
- PATH_GDM_CUSTOM,
- on_gdm_monitor_changed);
+ if (g_file_test ("/etc/gdm", G_FILE_TEST_EXISTS))
+ {
+ daemon->priv->gdm_monitor = setup_monitor (daemon,
+ PATH_GDM_CUSTOM,
+ on_gdm_monitor_changed);
+ }
+
+ if (g_file_test ("/etc/lightdm", G_FILE_TEST_EXISTS))
+ {
+ daemon->priv->lightdm_monitor = setup_monitor (daemon,
+ PATH_LIGHTDM_CONFIG,
+ on_gdm_monitor_changed);
+ }
queue_reload_users (daemon);
queue_reload_autologin (daemon);
@@ -1273,10 +1285,10 @@ daemon_local_check_auth (Daemon *daemon,
}
gboolean
-load_autologin (Daemon *daemon,
- gchar **name,
- gboolean *enabled,
- GError **error)
+load_autologin_gdm (Daemon *daemon,
+ gchar **name,
+ gboolean *enabled,
+ GError **error)
{
GKeyFile *keyfile;
GError *local_error;
@@ -1319,23 +1331,90 @@ load_autologin (Daemon *daemon,
return TRUE;
}
-static gboolean
-save_autologin (Daemon *daemon,
- const gchar *name,
- gboolean enabled,
+gboolean
+load_autologin_lightdm (Daemon *daemon,
+ gchar **name,
+ gboolean *enabled,
+ GError **error)
+{
+ GKeyFile *keyfile;
+
+ keyfile = g_key_file_new ();
+ if (!g_key_file_load_from_file (keyfile,
+ PATH_LIGHTDM_CONFIG,
+ G_KEY_FILE_KEEP_COMMENTS,
+ error)) {
+ g_key_file_free (keyfile);
+ return FALSE;
+ }
+
+ *name = g_key_file_get_string (keyfile, "SeatDefaults", "autologin-user", error);
+ *enabled = (*error == NULL && (*name) && (*name)[0] != 0);
+
+ g_key_file_free (keyfile);
+
+ return (*error == NULL);
+}
+
+gboolean
+load_autologin (Daemon *daemon,
+ gchar **name,
+ gboolean *enabled,
GError **error)
{
+ GDBusConnection *connection;
+ GVariant *reply;
+
+ /* First, determine whether we should load GDM or LightDM values by
+ checking if GDM is running. */
+ connection = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, NULL);
+ reply = g_dbus_connection_call_sync (connection,
+ "org.freedesktop.DBus",
+ "/",
+ "org.freedesktop.DBus",
+ "GetNameOwner",
+ g_variant_new ("(s)", "org.gnome.DisplayManager"),
+ G_VARIANT_TYPE ("(s)"),
+ G_DBUS_CALL_FLAGS_NO_AUTO_START,
+ -1,
+ NULL,
+ NULL);
+ g_object_unref (connection);
+
+ if (reply != NULL) {
+ g_variant_unref (reply);
+ return load_autologin_gdm (daemon, name, enabled, error);
+ } else {
+ return load_autologin_lightdm (daemon, name, enabled, error);
+ }
+}
+
+static gboolean
+save_autologin_gdm (Daemon *daemon,
+ const gchar *name,
+ gboolean enabled,
+ GError **error)
+{
GKeyFile *keyfile;
gchar *data;
gboolean result;
+ GError *local_error = NULL;
+
+ if (!g_file_test ("/etc/gdm", G_FILE_TEST_EXISTS))
+ return TRUE; /* not an error, just not installed */
keyfile = g_key_file_new ();
if (!g_key_file_load_from_file (keyfile,
PATH_GDM_CUSTOM,
G_KEY_FILE_KEEP_COMMENTS,
- error)) {
- g_key_file_free (keyfile);
- return FALSE;
+ &local_error)) {
+ /* It's OK for custom.conf to not exist, we will make it */
+ if (!g_error_matches (local_error, G_FILE_ERROR, G_FILE_ERROR_NOENT)) {
+ g_propagate_error (error, local_error);
+ g_key_file_free (keyfile);
+ return FALSE;
+ }
+ g_error_free (local_error);
}
g_key_file_set_string (keyfile, "daemon", "AutomaticLoginEnable", enabled ? "True" : "False");
@@ -1350,6 +1429,58 @@ save_autologin (Daemon *daemon,
return result;
}
+static gboolean
+save_autologin_lightdm (Daemon *daemon,
+ const gchar *name,
+ gboolean enabled,
+ GError **error)
+{
+ GKeyFile *keyfile;
+ gchar *data;
+ gboolean result;
+ GError *local_error = NULL;
+
+ if (!g_file_test ("/etc/lightdm", G_FILE_TEST_EXISTS))
+ return TRUE; /* not an error, just not installed */
+
+ keyfile = g_key_file_new ();
+ if (!g_key_file_load_from_file (keyfile,
+ PATH_LIGHTDM_CONFIG,
+ G_KEY_FILE_KEEP_COMMENTS,
+ &local_error)) {
+ /* It's OK for custom.conf to not exist, we will make it */
+ if (!g_error_matches (local_error, G_FILE_ERROR, G_FILE_ERROR_NOENT)) {
+ g_propagate_error (error, local_error);
+ g_key_file_free (keyfile);
+ return FALSE;
+ }
+ g_error_free (local_error);
+ }
+
+ g_key_file_set_string (keyfile, "SeatDefaults", "autologin-user", enabled ? name : "");
+
+ data = g_key_file_to_data (keyfile, NULL, NULL);
+ result = g_file_set_contents (PATH_LIGHTDM_CONFIG, data, -1, error);
+
+ g_key_file_free (keyfile);
+ g_free (data);
+
+ return result;
+}
+
+static gboolean
+save_autologin (Daemon *daemon,
+ const gchar *name,
+ gboolean enabled,
+ GError **error)
+{
+ if (!save_autologin_gdm (daemon, name, enabled, error))
+ return FALSE;
+ if (!save_autologin_lightdm (daemon, name, enabled, error))
+ return FALSE;
+ return TRUE;
+}
+
gboolean
daemon_local_set_automatic_login (Daemon *daemon,
User *user,
--
1.9.2
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