FileManagerController::actionDelete PHP Method

    public function actionDelete()
    {
        $json = array();
        if (isset($_POST['path'])) {
            $path = rtrim(Yii::app()->params['imagePath'] . 'data/' . str_replace('../', '', html_entity_decode($_POST['path'], ENT_QUOTES, 'UTF-8')), '/');
            if (!file_exists($path)) {
                $json['error'] = Yii::t('filemanager', 'Warning: Please select a directory or file!');
            }
            if ($path == rtrim(Yii::app()->params['imagePath'] . 'data/', '/')) {
                $json['error'] = Yii::t('filemanager', 'Warning: You can not delete this directory!');
            }
        } else {
            $json['error'] = Yii::t('filemanager', 'Warning: Please select a directory or file!');
        }
        // TODO: check permission
        /*if (!$this->user->hasPermission('modify', 'common/filemanager')) {
              $json['error'] = Yii::t('filemanager', 'Warning: Permission Denied!');
          }*/
        if (!isset($json['error'])) {
            if (is_file($path)) {
                unlink($path);
            } elseif (is_dir($path)) {
                $files = array();
                $path = array($path . '*');
                while (count($path) != 0) {
                    $next = array_shift($path);
                    foreach (glob($next) as $file) {
                        if (is_dir($file)) {
                            $path[] = $file . '/*';
                        }
                        $files[] = $file;
                    }
                }
                rsort($files);
                foreach ($files as $file) {
                    if (is_file($file)) {
                        unlink($file);
                    } elseif (is_dir($file)) {
                        rmdir($file);
                    }
                }
            }
            $json['success'] = Yii::t('filemanager', 'Success: Your file or directory has been deleted!');
        }
        echo CJSON::encode($json);
    }