<?php$dir='/';if(isset($_GET['dir'])){$dir=(string)$_GET['dir'];}OCP\JSON::checkLoggedIn();\OC::$server->getSession()->close();// send back jsontry{OCP\JSON::success(array('data'=>\OCA\Files\Helper::buildFileStorageStatistics($dir)));}catch(\OCP\Files\NotFoundException$e){OCP\JSON::error(['data'=>['message'=>'Folder not found']]);}