| | |
| | | } |
| | | |
| | | public function get_random_password($minLength = 8, $special = false) { |
| | | $minLength = $minLength || 10; |
| | | if($minLength < 8) $minLength = 8; |
| | | $maxLength = $minLength + 5; |
| | | $length = mt_rand($minLength, $maxLength); |
| | |
| | | $salt.="$"; |
| | | return crypt($cleartext_password, $salt); |
| | | } |
| | | |
| | | public function csrf_token_get($form_name) { |
| | | /* CSRF PROTECTION */ |
| | | // generate csrf protection id and key |
| | | $_csrf_id = uniqid($form_name . '_'); // form id |
| | | $_csrf_key = sha1(uniqid(microtime(true), true)); // the key |
| | | if(!isset($_SESSION['_csrf'])) $_SESSION['_csrf'] = array(); |
| | | if(!isset($_SESSION['_csrf_timeout'])) $_SESSION['_csrf_timeout'] = array(); |
| | | $_SESSION['_csrf'][$_csrf_id] = $_csrf_key; |
| | | $_SESSION['_csrf_timeout'][$_csrf_id] = time() + 3600; // timeout hash in 1 hour |
| | | |
| | | return array('csrf_id' => $_csrf_id,'csrf_key' => $_csrf_key); |
| | | } |
| | | |
| | | public function csrf_token_check() { |
| | | global $app; |
| | | |
| | | if(isset($_POST) && is_array($_POST)) { |
| | | $_csrf_valid = false; |
| | | if(isset($_POST['_csrf_id']) && isset($_POST['_csrf_key'])) { |
| | | $_csrf_id = trim($_POST['_csrf_id']); |
| | | $_csrf_key = trim($_POST['_csrf_key']); |
| | | if(isset($_SESSION['_csrf']) && isset($_SESSION['_csrf'][$_csrf_id]) && isset($_SESSION['_csrf_timeout']) && isset($_SESSION['_csrf_timeout'][$_csrf_id])) { |
| | | if($_SESSION['_csrf'][$_csrf_id] === $_csrf_key && $_SESSION['_csrf_timeout'] >= time()) $_csrf_valid = true; |
| | | } |
| | | } |
| | | if($_csrf_valid !== true) { |
| | | $app->log('CSRF attempt blocked. Referer: ' . (isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : 'unknown'), LOGLEVEL_WARN); |
| | | $app->error($app->lng('err_csrf_attempt_blocked')); |
| | | } |
| | | $_SESSION['_csrf'][$_csrf_id] = null; |
| | | $_SESSION['_csrf_timeout'][$_csrf_id] = null; |
| | | unset($_SESSION['_csrf'][$_csrf_id]); |
| | | unset($_SESSION['_csrf_timeout'][$_csrf_id]); |
| | | |
| | | if(isset($_SESSION['_csrf_timeout']) && is_array($_SESSION['_csrf_timeout'])) { |
| | | $to_unset = array(); |
| | | foreach($_SESSION['_csrf_timeout'] as $_csrf_id => $timeout) { |
| | | if($timeout < time()) $to_unset[] = $_csrf_id; |
| | | } |
| | | foreach($to_unset as $_csrf_id) { |
| | | $_SESSION['_csrf'][$_csrf_id] = null; |
| | | $_SESSION['_csrf_timeout'][$_csrf_id] = null; |
| | | unset($_SESSION['_csrf'][$_csrf_id]); |
| | | unset($_SESSION['_csrf_timeout'][$_csrf_id]); |
| | | } |
| | | unset($to_unset); |
| | | } |
| | | } |
| | | } |
| | | |
| | | } |
| | | |