See Release Notes
Long Term Support Release
<?php // This file is part of Moodle - http://moodle.org/ // // Moodle is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Moodle is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Moodle. If not, see <http://www.gnu.org/licenses/>. /** * This file is used to call any registered externallib function in Moodle. * * It will process more than one request and return more than one response if required. * It is recommended to add webservice functions and re-use this script instead of * writing any new custom ajax scripts. * * @since Moodle 2.9 * @package core * @copyright 2015 Damyon Wiese * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */> use core_external\external_api; define('AJAX_SCRIPT', true); > use core_external\external_settings; // Services can declare 'readonlysession' in their config located in db/services.php, if not present will default to false. >define('READ_ONLY_SESSION', true); if (!empty($_GET['nosessionupdate'])) { define('NO_SESSION_UPDATE', true); } require_once(__DIR__ . '/../../config.php');< require_once($CFG->libdir . '/externallib.php');define('PREFERRED_RENDERER_TARGET', RENDERER_TARGET_GENERAL); $arguments = ''; $cacherequest = false; if (defined('ALLOW_GET_PARAMETERS')) { $arguments = optional_param('args', '', PARAM_RAW); $cachekey = optional_param('cachekey', '', PARAM_INT); if ($cachekey && $cachekey > 0 && $cachekey <= time()) { $cacherequest = true; } } // Either we are not allowing GET parameters or we didn't use GET because // we did not pass a cache key or the URL was too long. if (empty($arguments)) { $arguments = file_get_contents('php://input'); } $requests = json_decode($arguments, true); if ($requests === null) { $lasterror = json_last_error_msg(); throw new coding_exception('Invalid json in request: ' . $lasterror); } $responses = array(); // Defines the external settings required for Ajax processing. $settings = external_settings::get_instance(); $settings->set_file('pluginfile.php'); $settings->set_fileurl(true); $settings->set_filter(true); $settings->set_raw(false); $haserror = false; foreach ($requests as $request) { $response = array(); $methodname = clean_param($request['methodname'], PARAM_ALPHANUMEXT); $index = clean_param($request['index'], PARAM_INT); $args = $request['args']; $response = external_api::call_external_function($methodname, $args, true); $responses[$index] = $response; if ($response['error']) { $haserror = true; if (!NO_MOODLE_COOKIES) { // If there was an error, and this HTTP request includes a Moodle cookie (and therefore a login), reject all // subsequent changes. // // The reason for this is that an earlier step may be performing a dependant action. Consider the following: // 1) Backup a thing // 2) Reset the thing to its initial state // 3) Restore the thing from the backup made in step 1. // // In the above example you do not want steps 2 and 3 to happen if step 1 fails. // Do not process the remaining requests. // If the request came through service-nologin.php which does not allow any kind of login, // then it is not possible to make changes to the DB, session, site, etc. // For all other cases, we *MUST* stop processing subsequent requests. break; } } } if ($cacherequest && !$haserror) { // 90 days only - based on Moodle point release cadence being every 3 months. $lifetime = 60 * 60 * 24 * 90; header('Expires: '. gmdate('D, d M Y H:i:s', time() + $lifetime) .' GMT'); header('Pragma: '); header('Cache-Control: public, max-age=' . $lifetime . ', immutable'); header('Accept-Ranges: none'); } echo json_encode($responses);