diff options
Diffstat (limited to 'src/polkitbackend/polkitbackendconfigsource.c')
| -rw-r--r-- | src/polkitbackend/polkitbackendconfigsource.c | 565 |
1 files changed, 0 insertions, 565 deletions
diff --git a/src/polkitbackend/polkitbackendconfigsource.c b/src/polkitbackend/polkitbackendconfigsource.c deleted file mode 100644 index 838bc6a..0000000 --- a/src/polkitbackend/polkitbackendconfigsource.c +++ /dev/null @@ -1,565 +0,0 @@ -/* - * Copyright (C) 2008 Red Hat, Inc. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General - * Public License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place, Suite 330, - * Boston, MA 02111-1307, USA. - * - * Author: David Zeuthen <davidz@redhat.com> - */ - -#include "config.h" - -#include <polkit/polkit.h> -#include "polkitbackendconfigsource.h" - -/* <internal> - * SECTION:polkitbackendconfigsource - * @title: PolkitBackendConfigSource - * @short_description: Access configuration files - * - * The #PolkitBackendConfigSource class is a utility class to read - * configuration data from a set of prioritized key-value files in a - * given directory. - */ - -struct _PolkitBackendConfigSourcePrivate -{ - GFile *directory; - - GFileMonitor *directory_monitor; - - /* sorted according to priority, higher priority is first */ - GList *key_files; - - gboolean has_data; -}; - -enum -{ - PROP_0, - PROP_DIRECTORY, -}; - -enum -{ - CHANGED_SIGNAL, - LAST_SIGNAL, -}; - -static guint signals[LAST_SIGNAL] = {0}; - -static void polkit_backend_config_source_purge (PolkitBackendConfigSource *source); - -static void polkit_backend_config_source_ensure (PolkitBackendConfigSource *source); - -G_DEFINE_TYPE (PolkitBackendConfigSource, polkit_backend_config_source, G_TYPE_OBJECT); - -/* ---------------------------------------------------------------------------------------------------- */ - -static void -polkit_backend_config_source_init (PolkitBackendConfigSource *source) -{ - source->priv = G_TYPE_INSTANCE_GET_PRIVATE (source, - POLKIT_BACKEND_TYPE_CONFIG_SOURCE, - PolkitBackendConfigSourcePrivate); -} - -static void -polkit_backend_config_source_finalize (GObject *object) -{ - PolkitBackendConfigSource *source = POLKIT_BACKEND_CONFIG_SOURCE (object); - - if (source->priv->directory != NULL) - g_object_unref (source->priv->directory); - - if (source->priv->directory_monitor != NULL) - g_object_unref (source->priv->directory_monitor); - - g_list_foreach (source->priv->key_files, (GFunc) g_key_file_free, NULL); - g_list_free (source->priv->key_files); - - if (G_OBJECT_CLASS (polkit_backend_config_source_parent_class)->finalize != NULL) - G_OBJECT_CLASS (polkit_backend_config_source_parent_class)->finalize (object); -} - - -static void -polkit_backend_config_source_get_property (GObject *object, - guint prop_id, - GValue *value, - GParamSpec *pspec) -{ - PolkitBackendConfigSource *source = POLKIT_BACKEND_CONFIG_SOURCE (object); - - switch (prop_id) - { - case PROP_DIRECTORY: - g_value_set_object (value, source->priv->directory); - break; - - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -polkit_backend_config_source_set_property (GObject *object, - guint prop_id, - const GValue *value, - GParamSpec *pspec) -{ - PolkitBackendConfigSource *source = POLKIT_BACKEND_CONFIG_SOURCE (object); - - switch (prop_id) - { - case PROP_DIRECTORY: - source->priv->directory = g_value_dup_object (value); - break; - - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -directory_monitor_changed (GFileMonitor *monitor, - GFile *file, - GFile *other_file, - GFileMonitorEvent event_type, - gpointer user_data) -{ - PolkitBackendConfigSource *source; - - source = POLKIT_BACKEND_CONFIG_SOURCE (user_data); - - if (file != NULL) - { - gchar *name; - - name = g_file_get_basename (file); - - //g_debug ("event_type=%d file=%p name=%s", event_type, file, name); - - if (!g_str_has_prefix (name, ".") && - !g_str_has_prefix (name, "#") && - g_str_has_suffix (name, ".conf") && - (event_type == G_FILE_MONITOR_EVENT_CREATED || - event_type == G_FILE_MONITOR_EVENT_DELETED || - event_type == G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT)) - { - - //g_debug ("match"); - - /* now throw away all caches */ - polkit_backend_config_source_purge (source); - g_signal_emit_by_name (source, "changed"); - } - - g_free (name); - } -} - -static void -polkit_backend_config_source_constructed (GObject *object) -{ - PolkitBackendConfigSource *source = POLKIT_BACKEND_CONFIG_SOURCE (object); - GError *error; - - error = NULL; - source->priv->directory_monitor = g_file_monitor_directory (source->priv->directory, - G_FILE_MONITOR_NONE, - NULL, - &error); - if (source->priv->directory_monitor == NULL) - { - gchar *dir_name; - dir_name = g_file_get_uri (source->priv->directory); - g_warning ("Error monitoring directory %s: %s", dir_name, error->message); - g_free (dir_name); - g_error_free (error); - } - else - { - g_signal_connect (source->priv->directory_monitor, - "changed", - (GCallback) directory_monitor_changed, - source); - } - - if (G_OBJECT_CLASS (polkit_backend_config_source_parent_class)->constructed != NULL) - G_OBJECT_CLASS (polkit_backend_config_source_parent_class)->constructed (object); -} - -static void -polkit_backend_config_source_class_init (PolkitBackendConfigSourceClass *klass) -{ - GObjectClass *gobject_class; - - gobject_class = G_OBJECT_CLASS (klass); - - gobject_class->get_property = polkit_backend_config_source_get_property; - gobject_class->set_property = polkit_backend_config_source_set_property; - gobject_class->constructed = polkit_backend_config_source_constructed; - gobject_class->finalize = polkit_backend_config_source_finalize; - - g_type_class_add_private (klass, sizeof (PolkitBackendConfigSourcePrivate)); - - /** - * PolkitBackendConfigSource:directory: - * - * The directory to watch for configuration files. - */ - g_object_class_install_property (gobject_class, - PROP_DIRECTORY, - g_param_spec_object ("directory", - "Directory", - "The directory to watch for configuration files", - G_TYPE_FILE, - G_PARAM_CONSTRUCT_ONLY | - G_PARAM_READWRITE | - G_PARAM_STATIC_NAME | - G_PARAM_STATIC_BLURB | - G_PARAM_STATIC_NICK)); - - /** - * PolkitBackendConfiguSource::changed: - * @source: A #PolkitBackendConfigSource. - * - * Emitted when configuration files in #PolkitBackendConfiguSource:directory changes. - */ - signals[CHANGED_SIGNAL] = g_signal_new ("changed", - POLKIT_BACKEND_TYPE_CONFIG_SOURCE, - G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET (PolkitBackendConfigSourceClass, changed), - NULL, - NULL, - g_cclosure_marshal_VOID__VOID, - G_TYPE_NONE, - 0); -} - -/** - * polkit_backend_config_source_new: - * @directory: The directory to watch. - * - * Creates a new #PolkitBackendConfigSource object that reads - * configuration from @directory. To watch for configuration changes, - * connect to the #PolkitBackendConfigSource::changed signal. - * - * Returns: A #PolkitBackendConfigSource for @directory. Free with - * g_object_unref(). - **/ -PolkitBackendConfigSource * -polkit_backend_config_source_new (GFile *directory) -{ - PolkitBackendConfigSource *source; - - source = POLKIT_BACKEND_CONFIG_SOURCE (g_object_new (POLKIT_BACKEND_TYPE_CONFIG_SOURCE, - "directory", directory, - NULL)); - - return source; -} - -static void -polkit_backend_config_source_purge (PolkitBackendConfigSource *source) -{ - g_list_foreach (source->priv->key_files, (GFunc) g_key_file_free, NULL); - g_list_free (source->priv->key_files); - source->priv->key_files = NULL; - - source->priv->has_data = FALSE; -} - -static gint -compare_filename (GFile *a, GFile *b) -{ - gchar *a_uri; - gchar *b_uri; - gint ret; - - a_uri = g_file_get_uri (a); - b_uri = g_file_get_uri (b); - - /* TODO: use ASCII sort function? */ - ret = -g_strcmp0 (a_uri, b_uri); - - return ret; -} - -static void -polkit_backend_config_source_ensure (PolkitBackendConfigSource *source) -{ - GFileEnumerator *enumerator; - GFileInfo *file_info; - GError *error; - GList *files; - GList *l; - - files = NULL; - - if (source->priv->has_data) - goto out; - - polkit_backend_config_source_purge (source); - - error = NULL; - enumerator = g_file_enumerate_children (source->priv->directory, - "standard::name", - G_FILE_QUERY_INFO_NONE, - NULL, - &error); - if (enumerator == NULL) - { - gchar *dir_name; - dir_name = g_file_get_uri (source->priv->directory); - g_warning ("Error enumerating files in %s: %s", dir_name, error->message); - g_free (dir_name); - g_error_free (error); - goto out; - } - - while ((file_info = g_file_enumerator_next_file (enumerator, NULL, &error)) != NULL) - { - const gchar *name; - - name = g_file_info_get_name (file_info); - - /* only consider files ending in .conf */ - if (g_str_has_suffix (name, ".conf")) - files = g_list_prepend (files, g_file_get_child (source->priv->directory, name)); - - g_object_unref (file_info); - } - g_object_unref (enumerator); - if (error != NULL) - { - g_warning ("Error enumerating files: %s", error->message); - g_error_free (error); - goto out; - } - - files = g_list_sort (files, (GCompareFunc) compare_filename); - - /* process files; highest priority comes first */ - for (l = files; l != NULL; l = l->next) - { - GFile *file = G_FILE (l->data); - gchar *filename; - GKeyFile *key_file; - - filename = g_file_get_path (file); - - key_file = g_key_file_new (); - - error = NULL; - if (!g_key_file_load_from_file (key_file, - filename, - G_KEY_FILE_NONE, - NULL)) - { - g_warning ("Error loading key-file %s: %s", filename, error->message); - g_error_free (error); - error = NULL; - g_key_file_free (key_file); - } - else - { - source->priv->key_files = g_list_prepend (source->priv->key_files, key_file); - } - - g_free (filename); - } - - source->priv->key_files = g_list_reverse (source->priv->key_files); - source->priv->has_data = TRUE; - - out: - g_list_foreach (files, (GFunc) g_object_unref, NULL); - g_list_free (files); -} - -static GKeyFile * -find_key_file (PolkitBackendConfigSource *source, - const gchar *group, - const gchar *key, - GError **error) -{ - GList *l; - GKeyFile *ret; - - ret = NULL; - - for (l = source->priv->key_files; l != NULL; l = l->next) - { - GKeyFile *key_file = l->data; - - if (g_key_file_has_key (key_file, group, key, NULL)) - { - ret = key_file; - goto out; - } - } - - out: - if (ret == NULL) - g_set_error_literal (error, - G_KEY_FILE_ERROR, - G_KEY_FILE_ERROR_NOT_FOUND, - "Group/Key combo not found in any config file"); - return ret; -} - -/** - * polkit_backend_config_source_get_integer: - * @source: A PolkitBackendConfigSource. - * @group: A group name. - * @key: A key name. - * @error: Return location for error or %NULL. - * - * Gets the value associated with @key under @group_name. - * - * Returns: The value or 0 if @error is set. - **/ -gint -polkit_backend_config_source_get_integer (PolkitBackendConfigSource *source, - const gchar *group, - const gchar *key, - GError **error) -{ - GKeyFile *key_file; - - polkit_backend_config_source_ensure (source); - - key_file = find_key_file (source, group, key, error); - if (key_file == NULL) - return 0; - - return g_key_file_get_integer (key_file, group, key, error); -} - -/** - * polkit_backend_config_source_get_boolean: - * @source: A PolkitBackendConfigSource. - * @group: A group name. - * @key: A key name. - * @error: Return location for error or %NULL. - * - * Gets the value associated with @key under @group_name. - * - * Returns: The value or %FALSE if @error is set. - **/ -gboolean -polkit_backend_config_source_get_boolean (PolkitBackendConfigSource *source, - const gchar *group, - const gchar *key, - GError **error) -{ - GKeyFile *key_file; - - polkit_backend_config_source_ensure (source); - - key_file = find_key_file (source, group, key, error); - if (key_file == NULL) - return FALSE; - - return g_key_file_get_boolean (key_file, group, key, error); -} - -/** - * polkit_backend_config_source_get_double: - * @source: A PolkitBackendConfigSource. - * @group: A group name. - * @key: A key name. - * @error: Return location for error or %NULL. - * - * Gets the value associated with @key under @group_name. - * - * Returns: The value or 0.0 if @error is set. - **/ -gdouble -polkit_backend_config_source_get_double (PolkitBackendConfigSource *source, - const gchar *group, - const gchar *key, - GError **error) -{ - GKeyFile *key_file; - - polkit_backend_config_source_ensure (source); - - key_file = find_key_file (source, group, key, error); - if (key_file == NULL) - return 0.0; - - return g_key_file_get_double (key_file, group, key, error); -} - -/** - * polkit_backend_config_source_get_string: - * @source: A PolkitBackendConfigSource. - * @group: A group name. - * @key: A key name. - * @error: Return location for error or %NULL. - * - * Gets the value associated with @key under @group_name. - * - * Returns: The value or %NULL if @error is set. - **/ -gchar * -polkit_backend_config_source_get_string (PolkitBackendConfigSource *source, - const gchar *group, - const gchar *key, - GError **error) -{ - GKeyFile *key_file; - - polkit_backend_config_source_ensure (source); - - key_file = find_key_file (source, group, key, error); - if (key_file == NULL) - return NULL; - - return g_key_file_get_string (key_file, group, key, error); -} - -/** - * polkit_backend_config_source_get_string_list: - * @source: A PolkitBackendConfigSource. - * @group: A group name. - * @key: A key name. - * @error: Return location for error or %NULL. - * - * Gets the values associated with @key under @group_name. - * - * Returns: The value or %NULL if @error is set. - **/ -gchar ** -polkit_backend_config_source_get_string_list (PolkitBackendConfigSource *source, - const gchar *group, - const gchar *key, - GError **error) -{ - GKeyFile *key_file; - - polkit_backend_config_source_ensure (source); - - key_file = find_key_file (source, group, key, error); - if (key_file == NULL) - return NULL; - - return g_key_file_get_string_list (key_file, group, key, NULL, error); -} |