[134] | 1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- |
---|
| 2 | * |
---|
| 3 | * Copyright (C) 2007 William Jon McCann <mccann@jhu.edu> |
---|
| 4 | * |
---|
| 5 | * This program is free software; you can redistribute it and/or modify |
---|
| 6 | * it under the terms of the GNU General Public License as published by |
---|
| 7 | * the Free Software Foundation; either version 2 of the License, or |
---|
| 8 | * (at your option) any later version. |
---|
| 9 | * |
---|
| 10 | * This program is distributed in the hope that it will be useful, |
---|
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
| 13 | * GNU General Public License for more details. |
---|
| 14 | * |
---|
| 15 | * You should have received a copy of the GNU General Public License |
---|
| 16 | * along with this program; if not, write to the Free Software |
---|
| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
---|
| 18 | * |
---|
| 19 | */ |
---|
| 20 | |
---|
| 21 | #include "config.h" |
---|
| 22 | |
---|
| 23 | #include <stdlib.h> |
---|
| 24 | #include <stdio.h> |
---|
| 25 | #include <fcntl.h> |
---|
| 26 | #include <unistd.h> |
---|
| 27 | #include <string.h> |
---|
| 28 | #include <signal.h> |
---|
| 29 | #include <sys/stat.h> |
---|
| 30 | #include <sys/types.h> |
---|
| 31 | |
---|
| 32 | #include <glib.h> |
---|
| 33 | #include <glib/gi18n.h> |
---|
| 34 | #include <glib/gstdio.h> |
---|
| 35 | #include <glib-object.h> |
---|
| 36 | |
---|
| 37 | #include "gdm-settings-desktop-backend.h" |
---|
| 38 | |
---|
| 39 | #include "gdm-marshal.h" |
---|
| 40 | |
---|
| 41 | #define GDM_SETTINGS_DESKTOP_BACKEND_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_SETTINGS_DESKTOP_BACKEND, GdmSettingsDesktopBackendPrivate)) |
---|
| 42 | |
---|
| 43 | struct GdmSettingsDesktopBackendPrivate |
---|
| 44 | { |
---|
| 45 | char *filename; |
---|
| 46 | GKeyFile *key_file; |
---|
| 47 | gboolean dirty; |
---|
| 48 | guint save_id; |
---|
| 49 | }; |
---|
| 50 | |
---|
| 51 | static void gdm_settings_desktop_backend_class_init (GdmSettingsDesktopBackendClass *klass); |
---|
| 52 | static void gdm_settings_desktop_backend_init (GdmSettingsDesktopBackend *settings_desktop_backend); |
---|
| 53 | static void gdm_settings_desktop_backend_finalize (GObject *object); |
---|
| 54 | |
---|
| 55 | G_DEFINE_TYPE (GdmSettingsDesktopBackend, gdm_settings_desktop_backend, GDM_TYPE_SETTINGS_BACKEND) |
---|
| 56 | |
---|
| 57 | static gboolean |
---|
| 58 | parse_key_string (const char *keystring, |
---|
| 59 | char **group, |
---|
| 60 | char **key, |
---|
| 61 | char **locale, |
---|
| 62 | char **value) |
---|
| 63 | { |
---|
| 64 | char **split1; |
---|
| 65 | char **split2; |
---|
| 66 | char *g; |
---|
| 67 | char *k; |
---|
| 68 | char *l; |
---|
| 69 | char *v; |
---|
| 70 | char *tmp1; |
---|
| 71 | char *tmp2; |
---|
| 72 | gboolean ret; |
---|
| 73 | |
---|
| 74 | g_return_val_if_fail (keystring != NULL, FALSE); |
---|
| 75 | |
---|
| 76 | ret = FALSE; |
---|
| 77 | g = k = v = l = NULL; |
---|
| 78 | split1 = split2 = NULL; |
---|
| 79 | |
---|
| 80 | if (group != NULL) { |
---|
| 81 | *group = g; |
---|
| 82 | } |
---|
| 83 | if (key != NULL) { |
---|
| 84 | *key = k; |
---|
| 85 | } |
---|
| 86 | if (locale != NULL) { |
---|
| 87 | *locale = l; |
---|
| 88 | } |
---|
| 89 | if (value != NULL) { |
---|
| 90 | *value = v; |
---|
| 91 | } |
---|
| 92 | |
---|
| 93 | /*g_debug ("Attempting to parse key string: %s", keystring);*/ |
---|
| 94 | |
---|
| 95 | split1 = g_strsplit (keystring, "/", 2); |
---|
| 96 | if (split1 == NULL |
---|
| 97 | || split1 [0] == NULL |
---|
| 98 | || split1 [1] == NULL |
---|
| 99 | || split1 [0][0] == '\0' |
---|
| 100 | || split1 [1][0] == '\0') { |
---|
| 101 | g_warning ("GdmSettingsDesktopBackend: invalid key: %s", keystring); |
---|
| 102 | goto out; |
---|
| 103 | } |
---|
| 104 | |
---|
| 105 | g = split1 [0]; |
---|
| 106 | |
---|
| 107 | split2 = g_strsplit (split1 [1], "=", 2); |
---|
| 108 | if (split2 == NULL) { |
---|
| 109 | k = split1 [1]; |
---|
| 110 | } else { |
---|
| 111 | k = split2 [0]; |
---|
| 112 | v = split2 [1]; |
---|
| 113 | } |
---|
| 114 | |
---|
| 115 | /* trim off the locale */ |
---|
| 116 | tmp1 = strchr (k, '['); |
---|
| 117 | tmp2 = strchr (k, ']'); |
---|
| 118 | if (tmp1 != NULL && tmp2 != NULL && tmp2 > tmp1) { |
---|
| 119 | l = g_strndup (tmp1 + 1, tmp2 - tmp1 - 1); |
---|
| 120 | *tmp1 = '\0'; |
---|
| 121 | } |
---|
| 122 | |
---|
| 123 | ret = TRUE; |
---|
| 124 | |
---|
| 125 | if (group != NULL) { |
---|
| 126 | *group = g_strdup (g); |
---|
| 127 | } |
---|
| 128 | if (key != NULL) { |
---|
| 129 | *key = g_strdup (k); |
---|
| 130 | } |
---|
| 131 | if (locale != NULL) { |
---|
| 132 | *locale = g_strdup (l); |
---|
| 133 | } |
---|
| 134 | if (value != NULL) { |
---|
| 135 | *value = g_strdup (v); |
---|
| 136 | } |
---|
| 137 | out: |
---|
| 138 | |
---|
| 139 | g_strfreev (split1); |
---|
| 140 | g_strfreev (split2); |
---|
| 141 | |
---|
| 142 | return ret; |
---|
| 143 | } |
---|
| 144 | |
---|
| 145 | static gboolean |
---|
| 146 | gdm_settings_desktop_backend_get_value (GdmSettingsBackend *backend, |
---|
| 147 | const char *key, |
---|
| 148 | char **value, |
---|
| 149 | GError **error) |
---|
| 150 | { |
---|
| 151 | GError *local_error; |
---|
| 152 | char *val; |
---|
| 153 | char *g; |
---|
| 154 | char *k; |
---|
| 155 | char *l; |
---|
| 156 | gboolean ret; |
---|
| 157 | |
---|
| 158 | g_return_val_if_fail (GDM_IS_SETTINGS_BACKEND (backend), FALSE); |
---|
| 159 | g_return_val_if_fail (key != NULL, FALSE); |
---|
| 160 | |
---|
| 161 | ret = FALSE; |
---|
| 162 | |
---|
| 163 | if (value != NULL) { |
---|
| 164 | *value = NULL; |
---|
| 165 | } |
---|
| 166 | |
---|
| 167 | val = g = k = l = NULL; |
---|
| 168 | /*GDM_SETTINGS_BACKEND_CLASS (gdm_settings_desktop_backend_parent_class)->get_value (display);*/ |
---|
| 169 | if (! parse_key_string (key, &g, &k, &l, NULL)) { |
---|
| 170 | g_set_error (error, GDM_SETTINGS_BACKEND_ERROR, GDM_SETTINGS_BACKEND_ERROR_KEY_NOT_FOUND, "Key not found"); |
---|
| 171 | goto out; |
---|
| 172 | } |
---|
| 173 | |
---|
| 174 | /*g_debug ("Getting key: %s %s %s", g, k, l);*/ |
---|
| 175 | local_error = NULL; |
---|
| 176 | val = g_key_file_get_value (GDM_SETTINGS_DESKTOP_BACKEND (backend)->priv->key_file, |
---|
| 177 | g, |
---|
| 178 | k, |
---|
| 179 | &local_error); |
---|
| 180 | if (local_error != NULL) { |
---|
| 181 | g_error_free (local_error); |
---|
| 182 | g_set_error (error, GDM_SETTINGS_BACKEND_ERROR, GDM_SETTINGS_BACKEND_ERROR_KEY_NOT_FOUND, "Key not found"); |
---|
| 183 | goto out; |
---|
| 184 | } |
---|
| 185 | |
---|
| 186 | if (value != NULL) { |
---|
| 187 | *value = g_strdup (val); |
---|
| 188 | } |
---|
| 189 | ret = TRUE; |
---|
| 190 | out: |
---|
| 191 | g_free (val); |
---|
| 192 | g_free (g); |
---|
| 193 | g_free (k); |
---|
| 194 | g_free (l); |
---|
| 195 | |
---|
| 196 | return ret; |
---|
| 197 | } |
---|
| 198 | |
---|
| 199 | static void |
---|
| 200 | save_settings (GdmSettingsDesktopBackend *backend) |
---|
| 201 | { |
---|
| 202 | GError *local_error; |
---|
| 203 | char *contents; |
---|
| 204 | gsize length; |
---|
| 205 | |
---|
| 206 | if (! backend->priv->dirty) { |
---|
| 207 | return; |
---|
| 208 | } |
---|
| 209 | |
---|
| 210 | g_debug ("Saving settings to %s", backend->priv->filename); |
---|
| 211 | |
---|
| 212 | local_error = NULL; |
---|
| 213 | contents = g_key_file_to_data (backend->priv->key_file, &length, &local_error); |
---|
| 214 | if (local_error != NULL) { |
---|
| 215 | g_warning ("Unable to save settings: %s", local_error->message); |
---|
| 216 | g_error_free (local_error); |
---|
| 217 | return; |
---|
| 218 | } |
---|
| 219 | |
---|
| 220 | local_error = NULL; |
---|
| 221 | g_file_set_contents (backend->priv->filename, |
---|
| 222 | contents, |
---|
| 223 | length, |
---|
| 224 | &local_error); |
---|
| 225 | if (local_error != NULL) { |
---|
| 226 | g_warning ("Unable to save settings: %s", local_error->message); |
---|
| 227 | g_error_free (local_error); |
---|
| 228 | g_free (contents); |
---|
| 229 | return; |
---|
| 230 | } |
---|
| 231 | |
---|
| 232 | g_free (contents); |
---|
| 233 | |
---|
| 234 | backend->priv->dirty = FALSE; |
---|
| 235 | } |
---|
| 236 | |
---|
| 237 | static gboolean |
---|
| 238 | save_settings_timer (GdmSettingsDesktopBackend *backend) |
---|
| 239 | { |
---|
| 240 | save_settings (backend); |
---|
| 241 | backend->priv->save_id = 0; |
---|
| 242 | return FALSE; |
---|
| 243 | } |
---|
| 244 | |
---|
| 245 | static void |
---|
| 246 | queue_save (GdmSettingsDesktopBackend *backend) |
---|
| 247 | { |
---|
| 248 | if (! backend->priv->dirty) { |
---|
| 249 | return; |
---|
| 250 | } |
---|
| 251 | |
---|
| 252 | if (backend->priv->save_id != 0) { |
---|
| 253 | /* already pending */ |
---|
| 254 | return; |
---|
| 255 | } |
---|
| 256 | |
---|
| 257 | backend->priv->save_id = g_timeout_add_seconds (5, (GSourceFunc)save_settings_timer, backend); |
---|
| 258 | } |
---|
| 259 | |
---|
| 260 | static gboolean |
---|
| 261 | gdm_settings_desktop_backend_set_value (GdmSettingsBackend *backend, |
---|
| 262 | const char *key, |
---|
| 263 | const char *value, |
---|
| 264 | GError **error) |
---|
| 265 | { |
---|
| 266 | GError *local_error; |
---|
| 267 | char *old_val; |
---|
| 268 | char *g; |
---|
| 269 | char *k; |
---|
| 270 | char *l; |
---|
| 271 | |
---|
| 272 | g_return_val_if_fail (GDM_IS_SETTINGS_BACKEND (backend), FALSE); |
---|
| 273 | g_return_val_if_fail (key != NULL, FALSE); |
---|
| 274 | |
---|
| 275 | /*GDM_SETTINGS_BACKEND_CLASS (gdm_settings_desktop_backend_parent_class)->get_value (display);*/ |
---|
| 276 | if (! parse_key_string (key, &g, &k, &l, NULL)) { |
---|
| 277 | g_set_error (error, GDM_SETTINGS_BACKEND_ERROR, GDM_SETTINGS_BACKEND_ERROR_KEY_NOT_FOUND, "Key not found"); |
---|
| 278 | return FALSE; |
---|
| 279 | } |
---|
| 280 | |
---|
| 281 | local_error = NULL; |
---|
| 282 | old_val = g_key_file_get_value (GDM_SETTINGS_DESKTOP_BACKEND (backend)->priv->key_file, |
---|
| 283 | g, |
---|
| 284 | k, |
---|
| 285 | &local_error); |
---|
| 286 | if (local_error != NULL) { |
---|
| 287 | g_error_free (local_error); |
---|
| 288 | } |
---|
| 289 | |
---|
| 290 | /*g_debug ("Setting key: %s %s %s", g, k, l);*/ |
---|
| 291 | local_error = NULL; |
---|
| 292 | g_key_file_set_value (GDM_SETTINGS_DESKTOP_BACKEND (backend)->priv->key_file, |
---|
| 293 | g, |
---|
| 294 | k, |
---|
| 295 | value); |
---|
| 296 | |
---|
| 297 | GDM_SETTINGS_DESKTOP_BACKEND (backend)->priv->dirty = TRUE; |
---|
| 298 | queue_save (GDM_SETTINGS_DESKTOP_BACKEND (backend)); |
---|
| 299 | |
---|
| 300 | gdm_settings_backend_value_changed (backend, key, old_val, value); |
---|
| 301 | |
---|
| 302 | g_free (old_val); |
---|
| 303 | |
---|
| 304 | return TRUE; |
---|
| 305 | } |
---|
| 306 | |
---|
| 307 | static void |
---|
| 308 | gdm_settings_desktop_backend_class_init (GdmSettingsDesktopBackendClass *klass) |
---|
| 309 | { |
---|
| 310 | GObjectClass *object_class = G_OBJECT_CLASS (klass); |
---|
| 311 | GdmSettingsBackendClass *backend_class = GDM_SETTINGS_BACKEND_CLASS (klass); |
---|
| 312 | |
---|
| 313 | object_class->finalize = gdm_settings_desktop_backend_finalize; |
---|
| 314 | |
---|
| 315 | backend_class->get_value = gdm_settings_desktop_backend_get_value; |
---|
| 316 | backend_class->set_value = gdm_settings_desktop_backend_set_value; |
---|
| 317 | |
---|
| 318 | g_type_class_add_private (klass, sizeof (GdmSettingsDesktopBackendPrivate)); |
---|
| 319 | } |
---|
| 320 | |
---|
| 321 | static void |
---|
| 322 | gdm_settings_desktop_backend_init (GdmSettingsDesktopBackend *backend) |
---|
| 323 | { |
---|
| 324 | gboolean res; |
---|
| 325 | GError *error; |
---|
| 326 | |
---|
| 327 | backend->priv = GDM_SETTINGS_DESKTOP_BACKEND_GET_PRIVATE (backend); |
---|
| 328 | |
---|
| 329 | backend->priv->key_file = g_key_file_new (); |
---|
| 330 | backend->priv->filename = g_strdup (GDMCONFDIR "/custom.conf"); |
---|
| 331 | |
---|
| 332 | error = NULL; |
---|
| 333 | res = g_key_file_load_from_file (backend->priv->key_file, |
---|
| 334 | backend->priv->filename, |
---|
| 335 | G_KEY_FILE_KEEP_COMMENTS | G_KEY_FILE_KEEP_TRANSLATIONS, |
---|
| 336 | &error); |
---|
| 337 | if (! res) { |
---|
| 338 | g_warning ("Unable to load file '%s': %s", backend->priv->filename, error->message); |
---|
| 339 | } |
---|
| 340 | } |
---|
| 341 | |
---|
| 342 | static void |
---|
| 343 | gdm_settings_desktop_backend_finalize (GObject *object) |
---|
| 344 | { |
---|
| 345 | GdmSettingsDesktopBackend *backend; |
---|
| 346 | |
---|
| 347 | g_return_if_fail (object != NULL); |
---|
| 348 | g_return_if_fail (GDM_IS_SETTINGS_DESKTOP_BACKEND (object)); |
---|
| 349 | |
---|
| 350 | backend = GDM_SETTINGS_DESKTOP_BACKEND (object); |
---|
| 351 | |
---|
| 352 | g_return_if_fail (backend->priv != NULL); |
---|
| 353 | |
---|
| 354 | save_settings (backend); |
---|
| 355 | g_key_file_free (backend->priv->key_file); |
---|
| 356 | g_free (backend->priv->filename); |
---|
| 357 | |
---|
| 358 | G_OBJECT_CLASS (gdm_settings_desktop_backend_parent_class)->finalize (object); |
---|
| 359 | } |
---|
| 360 | |
---|
| 361 | GdmSettingsBackend * |
---|
| 362 | gdm_settings_desktop_backend_new (void) |
---|
| 363 | { |
---|
| 364 | GObject *object; |
---|
| 365 | |
---|
| 366 | object = g_object_new (GDM_TYPE_SETTINGS_DESKTOP_BACKEND, NULL); |
---|
| 367 | |
---|
| 368 | return GDM_SETTINGS_BACKEND (object); |
---|
| 369 | } |
---|