admin/cron.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * Web cron
  19  *
  20  * This script looks through all the module directories for cron.php files
  21  * and runs them.  These files can contain cleanup functions, email functions
  22  * or anything that needs to be run on a regular basis.
  23  *
  24  * This file is best run from cron on the host system (ie outside PHP).
  25  * It is strongly recommended to add password protection via admin settings.
  26  *
  27  * eg   wget -q -O /dev/null 'http: *moodle.somewhere.edu/admin/cron.php?password=SeCreT666'
  28  *
  29  * It is also possible to use CLI script admin/cli/cron.php instead,
  30  * you can not call this script from command line any more.
  31  *
  32  * @package    core
  33  * @subpackage admin
  34  * @copyright  1999 onwards Martin Dougiamas  http://dougiamas.com
  35  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  36  */
  37
  38 // phpcs:ignoreFile moodle.Files.MoodleInternal.MoodleInternalGlobalState
  39
  40 if (defined('STDIN')) {
  41     fwrite(STDERR, "ERROR: This script no longer supports CLI, please use admin/cli/cron.php instead\n");
  42     exit(1);
  43 }
  44
  45 // This is a fake CLI script, it is a really ugly hack which emulates
  46 // CLI via web interface, please do not use this hack elsewhere
  47 define('CLI_SCRIPT', true);
  48 define('WEB_CRON_EMULATED_CLI', 'defined'); // ugly ugly hack, do not use elsewhere please
  49 define('NO_OUTPUT_BUFFERING', true);
  50
  51 require('../config.php');
  52 require_once($CFG->libdir . '/clilib.php');
  53
  54 // extra safety
  55 \core\session\manager::write_close();
  56
  57 // check if execution allowed
  58 if (!empty($CFG->cronclionly)) {
  59     // This script can only be run via the cli.
  60     throw new \moodle_exception('cronerrorclionly', 'admin');
  61     exit;
  62 }
  63 // This script is being called via the web, so check the password if there is one.
  64 if (!empty($CFG->cronremotepassword)) {
  65     $pass = optional_param('password', '', PARAM_RAW);
  66     if ($pass != $CFG->cronremotepassword) {
  67         // wrong password.
  68         throw new \moodle_exception('cronerrorpassword', 'admin');
  69         exit;
  70     }
  71 }
  72
  73 // Send mime type and encoding.
  74 @header('Content-Type: text/plain; charset=utf-8');
  75
  76 // We do not want html markup in emulated CLI.
  77 @ini_set('html_errors', 'off');
  78
  79 // Execute the cron, disabling keepalive.
  80 \core\cron::run_main_process(0);