input[$variable])) { $var = $CONFIG->input[$variable]; if ($filter_result) { $var = filter_tags($var); } return $var; } if (isset($_REQUEST[$variable])) { if (is_array($_REQUEST[$variable])) { $var = $_REQUEST[$variable]; } else { $var = trim($_REQUEST[$variable]); } if ($filter_result) { $var = filter_tags($var); } return $var; } return $default; } /** * Sets an input value that may later be retrieved by get_input * * Note: this function does not handle nested arrays (ex: form input of param[m][n]) * * @param string $variable The name of the variable * @param string $value The value of the variable */ function set_input($variable, $value) { global $CONFIG; if (!isset($CONFIG->input)) { $CONFIG->input = array(); } if (is_array($value)) { array_walk_recursive($value, create_function('&$v, $k', '$v = trim($v);')); $CONFIG->input[trim($variable)] = $value; } else { $CONFIG->input[trim($variable)] = trim($value); } } /** * Filter tags from a given string based on registered hooks. * * @param mixed $var Anything that does not include an object (strings, ints, arrays) * This includes multi-dimensional arrays. * @return mixed The filtered result - everything will be strings */ function filter_tags($var) { return trigger_plugin_hook('validate', 'input', null, $var); } /** * Validates an email address. * * @param string $address Email address. * @return bool */ function is_email_address($address) { return filter_var($address, FILTER_VALIDATE_EMAIL) === $address; } /** * Page handler for autocomplete endpoint. * * @param $page * @return unknown_type */ function input_livesearch_page_handler($page) { global $CONFIG; // only return results to logged in users. if (!$user = get_loggedin_user()) { exit; } if (!$q = get_input('q')) { exit; } $q = sanitise_string($q); // replace mysql vars with escaped strings $q = str_replace(array('_', '%'), array('\_', '\%'), $q); $match_on = get_input('match_on', 'all'); if ($match_on == 'all' || $match_on[0] == 'all') { $match_on = array('users', 'groups'); } if (!is_array($match_on)) { $match_on = array($match_on); } if (get_input('match_owner', false)) { $owner_guid = $user->getGUID(); $owner_where = 'AND e.owner_guid = ' . $user->getGUID(); } else { $owner_guid = null; $owner_where = ''; } $limit = get_input('limit', 10); // grab a list of entities and send them in json. $results = array(); foreach ($match_on as $type) { switch ($type) { case 'all': // only need to pull up title from objects. if (!$entities = elgg_get_entities(array('owner_guid' => $owner_guid, 'limit' => $limit)) AND is_array($entities)) { $results = array_merge($results, $entities); } break; case 'users': $query = "SELECT * FROM {$CONFIG->dbprefix}users_entity as ue, {$CONFIG->dbprefix}entities as e WHERE e.guid = ue.guid AND e.enabled = 'yes' AND ue.banned = 'no' AND (ue.name LIKE '$q%' OR ue.username LIKE '$q%') LIMIT $limit "; if ($entities = get_data($query)) { foreach ($entities as $entity) { $json = json_encode(array( 'type' => 'user', 'name' => $entity->name, 'desc' => $entity->username, 'icon' => '', 'guid' => $entity->guid )); $results[$entity->name . rand(1,100)] = $json; } } break; case 'groups': // don't return results if groups aren't enabled. if (!is_plugin_enabled('groups')) { continue; } $query = "SELECT * FROM {$CONFIG->dbprefix}groups_entity as ge, {$CONFIG->dbprefix}entities as e WHERE e.guid = ge.guid AND e.enabled = 'yes' $owner_where AND (ge.name LIKE '$q%' OR ge.description LIKE '%$q%') LIMIT $limit "; if ($entities = get_data($query)) { foreach ($entities as $entity) { $json = json_encode(array( 'type' => 'group', 'name' => $entity->name, 'desc' => strip_tags($entity->description), 'icon' => '', 'guid' => $entity->guid )); //$results[$entity->name . rand(1,100)] = "$json|{$entity->guid}"; $results[$entity->name . rand(1,100)] = $json; } } break; case 'friends': $access = get_access_sql_suffix(); $query = "SELECT * FROM {$CONFIG->dbprefix}users_entity as ue, {$CONFIG->dbprefix}entity_relationships as er, {$CONFIG->dbprefix}entities as e WHERE er.relationship = 'friend' AND er.guid_one = {$user->getGUID()} AND er.guid_two = ue.guid AND e.guid = ue.guid AND e.enabled = 'yes' AND ue.banned = 'no' AND (ue.name LIKE '$q%' OR ue.username LIKE '$q%') LIMIT $limit "; if ($entities = get_data($query)) { foreach ($entities as $entity) { $json = json_encode(array( 'type' => 'user', 'name' => $entity->name, 'desc' => $entity->username, 'icon' => '', 'guid' => $entity->guid )); $results[$entity->name . rand(1,100)] = $json; } } break; default: // arbitrary subtype. //@todo you cannot specify a subtype without a type. // did this ever work? elgg_get_entities(array('subtype' => $type, 'owner_guid' => $owner_guid)); break; } } ksort($results); echo implode($results, "\n"); exit; } function input_init() { // register an endpoint for live search / autocomplete. register_page_handler('livesearch', 'input_livesearch_page_handler'); if (ini_get_bool('magic_quotes_gpc') ) { //do keys as well, cos array_map ignores them function stripslashes_arraykeys($array) { if (is_array($array)) { $array2 = array(); foreach ($array as $key => $data) { if ($key != stripslashes($key)) { $array2[stripslashes($key)] = $data; } else { $array2[$key] = $data; } } return $array2; } else { return $array; } } function stripslashes_deep($value) { if (is_array($value)) { $value = stripslashes_arraykeys($value); $value = array_map('stripslashes_deep', $value); } else { $value = stripslashes($value); } return $value; } $_POST = stripslashes_arraykeys($_POST); $_GET = stripslashes_arraykeys($_GET); $_COOKIE = stripslashes_arraykeys($_COOKIE); $_REQUEST = stripslashes_arraykeys($_REQUEST); $_POST = array_map('stripslashes_deep', $_POST); $_GET = array_map('stripslashes_deep', $_GET); $_COOKIE = array_map('stripslashes_deep', $_COOKIE); $_REQUEST = array_map('stripslashes_deep', $_REQUEST); if (!empty($_SERVER['REQUEST_URI'])) { $_SERVER['REQUEST_URI'] = stripslashes($_SERVER['REQUEST_URI']); } if (!empty($_SERVER['QUERY_STRING'])) { $_SERVER['QUERY_STRING'] = stripslashes($_SERVER['QUERY_STRING']); } if (!empty($_SERVER['HTTP_REFERER'])) { $_SERVER['HTTP_REFERER'] = stripslashes($_SERVER['HTTP_REFERER']); } if (!empty($_SERVER['PATH_INFO'])) { $_SERVER['PATH_INFO'] = stripslashes($_SERVER['PATH_INFO']); } if (!empty($_SERVER['PHP_SELF'])) { $_SERVER['PHP_SELF'] = stripslashes($_SERVER['PHP_SELF']); } if (!empty($_SERVER['PATH_TRANSLATED'])) { $_SERVER['PATH_TRANSLATED'] = stripslashes($_SERVER['PATH_TRANSLATED']); } } } register_elgg_event_handler('init','system','input_init');