site_id))) $site_id = $CONFIG->site_id; $user_id = (int) $user_id; $site_id = (int) $site_id; if (empty($access_list[$user_id]) || $flush == true) { $access_list[$user_id] = "(" . implode(",",get_access_array($user_id, $site_id, $flush)) . ")"; } return $access_list[$user_id]; } /** * Gets an array of access restrictions the given user is allowed to see on this site * * @param int $user_id User ID; defaults to currently logged in user * @param int $site_id Site ID; defaults to current site * @param boolean $flush If set to true, will refresh the access list from the database * @return array An array of access groups suitable for injection in an SQL call */ function get_access_array($user_id = 0, $site_id = 0, $flush = false) { global $CONFIG; static $access_array; if (!isset($access_array)) $access_array = array(); if ($user_id == 0) $user_id = $_SESSION['guid']; if (($site_id == 0) && (isset($CONFIG->site_id))) $site_id = $CONFIG->site_id; $user_id = (int) $user_id; $site_id = (int) $site_id; if (empty($access_array[$user_id]) || $flush == true) { $query = "select am.access_group_id from {$CONFIG->dbprefix}access_group_membership am "; $query .= " left join {$CONFIG->dbprefix}access_groups ag on ag.id = am.access_group_id "; $query .= " where am.user_guid = {$user_id} and (ag.site_guid = {$site_id} or ag.site_guid = 0)"; $tmp_access_array = array(2); if (isloggedin()) $tmp_access_array[] = 1; if ($groups = get_data($query)) { foreach($groups as $group) $tmp_access_array[] = $group->access_group_id; } $access_array[$user_id] = $tmp_access_array; } return $access_array[$user_id]; } /** * Add access restriction sql code to a given query. * * Note that if this code is executed in privileged mode it will return blank. * * TODO: DELETE once Query classes are fully integrated * * @param string $table_prefix Optional xxx. prefix for the access code. */ function get_access_sql_suffix($table_prefix = "") { $sql = ""; if (!is_privileged()) { $access = get_access_list(); if ($table_prefix) $table_prefix = sanitise_string($table_prefix) . "."; $sql = " and ({$table_prefix}access_id in {$access} or ({$table_prefix}access_id = 0 and {$table_prefix}owner_guid = {$_SESSION['id']}))"; } return $sql; } /** * Returns an array of access permissions that the specified user is allowed to save objects with. * Permissions are of the form ('id' => 'Description') * * @param int $user_id The user's GUID. * @param int $site_id The current site. * @param true|false $flush If this is set to true, this will shun any cached version * @return array List of access permissions= */ function get_write_access_array($user_id = 0, $site_id = 0, $flush = false) { global $CONFIG; static $access_array; if ($user_id == 0) $user_id = $_SESSION['guid']; if (($site_id == 0) && (isset($CONFIG->site_id))) $site_id = $CONFIG->site_id; $user_id = (int) $user_id; $site_id = (int) $site_id; if (empty($access_array[$user_id]) || $flush == true) { $query = "select ag.* from {$CONFIG->dbprefix}access_groups ag "; $query .= " where (ag.site_guid = {$site_id} or ag.site_guid = 0)"; $query .= " and (ag.owner_guid = {$user_id} or ag.owner_guid = 0)"; $tmp_access_array = array(); if ($groups = get_data($query)) { foreach($groups as $group) $tmp_access_array[$group->id] = elgg_echo($group->name); } $tmp_access_array = trigger_plugin_hook('access','user',array('user_id' => $user_id, 'site_id' => $site_id),$tmp_access_array); $access_array[$user_id] = $tmp_access_array; } return $access_array[$user_id]; } /** * Some useful constant definitions */ define('ACCESS_PRIVATE',0); define('ACCESS_LOGGED_IN',1); define('ACCESS_PUBLIC',2); ?>