mirror of
https://github.com/moodle/moodle.git
synced 2025-01-18 22:08:20 +01:00
505 lines
19 KiB
PHP
505 lines
19 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Cron functions.
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*
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* @package core
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* @subpackage admin
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* @copyright 1999 onwards Martin Dougiamas http://dougiamas.com
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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function cron_run() {
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global $DB, $CFG, $OUTPUT;
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if (CLI_MAINTENANCE) {
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echo "CLI maintenance mode active, cron execution suspended.\n";
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exit(1);
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}
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if (moodle_needs_upgrading()) {
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echo "Moodle upgrade pending, cron execution suspended.\n";
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exit(1);
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}
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require_once($CFG->libdir.'/adminlib.php');
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require_once($CFG->libdir.'/gradelib.php');
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if (!empty($CFG->showcronsql)) {
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$DB->set_debug(true);
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}
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if (!empty($CFG->showcrondebugging)) {
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$CFG->debug = DEBUG_DEVELOPER;
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$CFG->debugdisplay = true;
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}
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set_time_limit(0);
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$starttime = microtime();
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/// increase memory limit
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raise_memory_limit(MEMORY_EXTRA);
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/// emulate normal session
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cron_setup_user();
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/// Start output log
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$timenow = time();
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mtrace("Server Time: ".date('r',$timenow)."\n\n");
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/// Session gc
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mtrace("Cleaning up stale sessions");
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session_gc();
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/// Run all cron jobs for each module
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mtrace("Starting activity modules");
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get_mailer('buffer');
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if ($mods = $DB->get_records_select("modules", "cron > 0 AND ((? - lastcron) > cron) AND visible = 1", array($timenow))) {
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foreach ($mods as $mod) {
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$libfile = "$CFG->dirroot/mod/$mod->name/lib.php";
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if (file_exists($libfile)) {
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include_once($libfile);
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$cron_function = $mod->name."_cron";
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if (function_exists($cron_function)) {
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mtrace("Processing module function $cron_function ...", '');
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$pre_dbqueries = null;
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$pre_dbqueries = $DB->perf_get_queries();
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$pre_time = microtime(1);
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if ($cron_function()) {
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$DB->set_field("modules", "lastcron", $timenow, array("id"=>$mod->id));
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}
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if (isset($pre_dbqueries)) {
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mtrace("... used " . ($DB->perf_get_queries() - $pre_dbqueries) . " dbqueries");
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mtrace("... used " . (microtime(1) - $pre_time) . " seconds");
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}
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/// Reset possible changes by modules to time_limit. MDL-11597
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@set_time_limit(0);
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mtrace("done.");
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}
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}
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}
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}
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get_mailer('close');
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mtrace("Finished activity modules");
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mtrace("Starting blocks");
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if ($blocks = $DB->get_records_select("block", "cron > 0 AND ((? - lastcron) > cron) AND visible = 1", array($timenow))) {
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// we will need the base class.
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require_once($CFG->dirroot.'/blocks/moodleblock.class.php');
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foreach ($blocks as $block) {
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$blockfile = $CFG->dirroot.'/blocks/'.$block->name.'/block_'.$block->name.'.php';
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if (file_exists($blockfile)) {
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require_once($blockfile);
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$classname = 'block_'.$block->name;
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$blockobj = new $classname;
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if (method_exists($blockobj,'cron')) {
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mtrace("Processing cron function for ".$block->name.'....','');
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if ($blockobj->cron()) {
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$DB->set_field('block', 'lastcron', $timenow, array('id'=>$block->id));
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}
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/// Reset possible changes by blocks to time_limit. MDL-11597
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@set_time_limit(0);
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mtrace('done.');
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}
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}
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}
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}
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mtrace('Finished blocks');
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//now do plagiarism checks
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require_once($CFG->libdir.'/plagiarismlib.php');
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plagiarism_cron();
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mtrace("Starting quiz reports");
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if ($reports = $DB->get_records_select('quiz_report', "cron > 0 AND ((? - lastcron) > cron)", array($timenow))) {
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foreach ($reports as $report) {
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$cronfile = "$CFG->dirroot/mod/quiz/report/$report->name/cron.php";
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if (file_exists($cronfile)) {
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include_once($cronfile);
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$cron_function = 'quiz_report_'.$report->name."_cron";
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if (function_exists($cron_function)) {
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mtrace("Processing quiz report cron function $cron_function ...", '');
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$pre_dbqueries = null;
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$pre_dbqueries = $DB->perf_get_queries();
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$pre_time = microtime(1);
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if ($cron_function()) {
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$DB->set_field('quiz_report', "lastcron", $timenow, array("id"=>$report->id));
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}
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if (isset($pre_dbqueries)) {
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mtrace("... used " . ($DB->perf_get_queries() - $pre_dbqueries) . " dbqueries");
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mtrace("... used " . (microtime(1) - $pre_time) . " seconds");
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}
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mtrace("done.");
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}
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}
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}
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}
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mtrace("Finished quiz reports");
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mtrace('Starting admin reports');
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// Admin reports do not have a database table that lists them. Instead a
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// report includes cron.php with function report_reportname_cron() if it wishes
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// to be cronned. It is up to cron.php to handle e.g. if it only needs to
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// actually do anything occasionally.
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$reports = get_plugin_list('report');
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foreach($reports as $report => $reportdir) {
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$cronfile = $reportdir.'/cron.php';
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if (file_exists($cronfile)) {
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require_once($cronfile);
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$cronfunction = 'report_'.$report.'_cron';
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mtrace('Processing cron function for '.$report.'...', '');
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$pre_dbqueries = null;
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$pre_dbqueries = $DB->perf_get_queries();
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$pre_time = microtime(true);
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$cronfunction();
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if (isset($pre_dbqueries)) {
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mtrace("... used " . ($DB->perf_get_queries() - $pre_dbqueries) . " dbqueries");
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mtrace("... used " . round(microtime(true) - $pre_time, 2) . " seconds");
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}
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mtrace('done.');
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}
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}
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mtrace('Finished admin reports');
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mtrace('Starting main gradebook job ...');
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grade_cron();
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mtrace('done.');
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mtrace('Starting processing the event queue...');
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events_cron();
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mtrace('done.');
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if ($CFG->enablecompletion) {
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// Completion cron
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mtrace('Starting the completion cron...');
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require_once($CFG->libdir . '/completion/cron.php');
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completion_cron();
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mtrace('done');
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}
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if ($CFG->enableportfolios) {
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// Portfolio cron
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mtrace('Starting the portfolio cron...');
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require_once($CFG->libdir . '/portfoliolib.php');
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portfolio_cron();
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mtrace('done');
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}
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/// Run all core cron jobs, but not every time since they aren't too important.
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/// These don't have a timer to reduce load, so we'll use a random number
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/// to randomly choose the percentage of times we should run these jobs.
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srand ((double) microtime() * 10000000);
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$random100 = rand(0,100);
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if ($random100 < 20) { // Approximately 20% of the time.
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mtrace("Running clean-up tasks...");
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/// Delete users who haven't confirmed within required period
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if (!empty($CFG->deleteunconfirmed)) {
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$cuttime = $timenow - ($CFG->deleteunconfirmed * 3600);
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$rs = $DB->get_recordset_sql ("SELECT id, firstname, lastname
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FROM {user}
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WHERE confirmed = 0 AND firstaccess > 0
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AND firstaccess < ?", array($cuttime));
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foreach ($rs as $user) {
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if ($DB->delete_records('user', array('id'=>$user->id))) {
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mtrace("Deleted unconfirmed user for ".fullname($user, true)." ($user->id)");
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}
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}
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$rs->close();
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}
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flush();
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/// Delete users who haven't completed profile within required period
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if (!empty($CFG->deleteincompleteusers)) {
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$cuttime = $timenow - ($CFG->deleteincompleteusers * 3600);
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$rs = $DB->get_recordset_sql ("SELECT id, username
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FROM {user}
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WHERE confirmed = 1 AND lastaccess > 0
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AND lastaccess < ? AND deleted = 0
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AND (lastname = '' OR firstname = '' OR email = '')",
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array($cuttime));
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foreach ($rs as $user) {
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if (delete_user($user)) {
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mtrace("Deleted not fully setup user $user->username ($user->id)");
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}
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}
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$rs->close();
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}
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flush();
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/// Delete old logs to save space (this might need a timer to slow it down...)
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if (!empty($CFG->loglifetime)) { // value in days
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$loglifetime = $timenow - ($CFG->loglifetime * 3600 * 24);
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if ($DB->delete_records_select("log", "time < ?", array($loglifetime))) {
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mtrace("Deleted old log records");
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}
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}
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flush();
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/// Delete old cached texts
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if (!empty($CFG->cachetext)) { // Defined in config.php
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$cachelifetime = time() - $CFG->cachetext - 60; // Add an extra minute to allow for really heavy sites
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if ($DB->delete_records_select('cache_text', "timemodified < ?", array($cachelifetime))) {
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mtrace("Deleted old cache_text records");
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}
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}
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flush();
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if (!empty($CFG->notifyloginfailures)) {
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notify_login_failures();
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mtrace('Notified login failured');
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}
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flush();
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//
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// generate new password emails for users
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//
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mtrace('checking for create_password');
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if ($DB->count_records('user_preferences', array('name'=>'create_password', 'value'=>'1'))) {
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mtrace('creating passwords for new users');
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$newusers = $DB->get_records_sql("SELECT u.id as id, u.email, u.firstname,
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u.lastname, u.username,
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p.id as prefid
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FROM {user} u
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JOIN {user_preferences} p ON u.id=p.userid
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WHERE p.name='create_password' AND p.value='1' AND u.email !='' ");
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foreach ($newusers as $newuserid => $newuser) {
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$newuser->emailstop = 0; // send email regardless
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// email user
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if (setnew_password_and_mail($newuser)) {
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// remove user pref
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$DB->delete_records('user_preferences', array('id'=>$newuser->prefid));
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} else {
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trigger_error("Could not create and mail new user password!");
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}
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}
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}
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if (!empty($CFG->usetags)) {
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require_once($CFG->dirroot.'/tag/lib.php');
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tag_cron();
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mtrace ('Executed tag cron');
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}
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// Accesslib stuff
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cleanup_contexts();
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mtrace ('Cleaned up contexts');
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gc_cache_flags();
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mtrace ('Cleaned cache flags');
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// If you suspect that the context paths are somehow corrupt
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// replace the line below with: build_context_path(true);
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build_context_path();
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mtrace ('Built context paths');
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if (!empty($CFG->messagingdeletereadnotificationsdelay)) {
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$notificationdeletetime = time() - $CFG->messagingdeletereadnotificationsdelay;
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$DB->delete_records_select('message_read', 'notification=1 AND timeread<:notificationdeletetime', array('notificationdeletetime'=>$notificationdeletetime));
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mtrace('Cleaned up read notifications');
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}
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mtrace("Finished clean-up tasks...");
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} // End of occasional clean-up tasks
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// Disabled until implemented. MDL-21432, MDL-22184
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if (1 == 2 && empty($CFG->disablescheduledbackups)) { // Defined in config.php
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//Execute backup's cron
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//Perhaps a long time and memory could help in large sites
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@set_time_limit(0);
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raise_memory_limit(MEMORY_EXTRA);
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if (file_exists("$CFG->dirroot/backup/backup_scheduled.php") and
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file_exists("$CFG->dirroot/backup/backuplib.php") and
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file_exists("$CFG->dirroot/backup/lib.php") and
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file_exists("$CFG->libdir/blocklib.php")) {
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include_once("$CFG->dirroot/backup/backup_scheduled.php");
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include_once("$CFG->dirroot/backup/backuplib.php");
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include_once("$CFG->dirroot/backup/lib.php");
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mtrace("Running backups if required...");
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if (! schedule_backup_cron()) {
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mtrace("ERROR: Something went wrong while performing backup tasks!!!");
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} else {
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mtrace("Backup tasks finished.");
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}
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}
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}
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/// Run the auth cron, if any
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/// before enrolments because it might add users that will be needed in enrol plugins
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$auths = get_enabled_auth_plugins();
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mtrace("Running auth crons if required...");
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foreach ($auths as $auth) {
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$authplugin = get_auth_plugin($auth);
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if (method_exists($authplugin, 'cron')) {
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mtrace("Running cron for auth/$auth...");
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$authplugin->cron();
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if (!empty($authplugin->log)) {
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mtrace($authplugin->log);
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}
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}
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unset($authplugin);
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}
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mtrace("Running enrol crons if required...");
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$enrols = enrol_get_plugins(true);
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foreach($enrols as $ename=>$enrol) {
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// do this for all plugins, disabled plugins might want to cleanup stuff such as roles
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if (!$enrol->is_cron_required()) {
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continue;
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}
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mtrace("Running cron for enrol_$ename...");
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$enrol->cron();
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$enrol->set_config('lastcron', time());
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}
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if (!empty($CFG->enablestats) and empty($CFG->disablestatsprocessing)) {
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require_once($CFG->dirroot.'/lib/statslib.php');
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// check we're not before our runtime
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$timetocheck = stats_get_base_daily() + $CFG->statsruntimestarthour*60*60 + $CFG->statsruntimestartminute*60;
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if (time() > $timetocheck) {
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// process configured number of days as max (defaulting to 31)
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$maxdays = empty($CFG->statsruntimedays) ? 31 : abs($CFG->statsruntimedays);
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if (stats_cron_daily($maxdays)) {
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if (stats_cron_weekly()) {
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if (stats_cron_monthly()) {
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stats_clean_old();
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}
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}
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}
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@set_time_limit(0);
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} else {
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mtrace('Next stats run after:'. userdate($timetocheck));
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}
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}
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// run gradebook import/export/report cron
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if ($gradeimports = get_plugin_list('gradeimport')) {
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foreach ($gradeimports as $gradeimport => $plugindir) {
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if (file_exists($plugindir.'/lib.php')) {
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require_once($plugindir.'/lib.php');
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$cron_function = 'grade_import_'.$gradeimport.'_cron';
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if (function_exists($cron_function)) {
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mtrace("Processing gradebook import function $cron_function ...", '');
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$cron_function();
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}
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}
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}
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}
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if ($gradeexports = get_plugin_list('gradeexport')) {
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foreach ($gradeexports as $gradeexport => $plugindir) {
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if (file_exists($plugindir.'/lib.php')) {
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require_once($plugindir.'/lib.php');
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$cron_function = 'grade_export_'.$gradeexport.'_cron';
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if (function_exists($cron_function)) {
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mtrace("Processing gradebook export function $cron_function ...", '');
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$cron_function();
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}
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}
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}
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}
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if ($gradereports = get_plugin_list('gradereport')) {
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foreach ($gradereports as $gradereport => $plugindir) {
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if (file_exists($plugindir.'/lib.php')) {
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require_once($plugindir.'/lib.php');
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$cron_function = 'grade_report_'.$gradereport.'_cron';
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if (function_exists($cron_function)) {
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mtrace("Processing gradebook report function $cron_function ...", '');
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$cron_function();
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}
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}
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}
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}
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// Run external blog cron if needed
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if ($CFG->useexternalblogs) {
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require_once($CFG->dirroot . '/blog/lib.php');
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mtrace("Fetching external blog entries...", '');
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$sql = "timefetched < ? OR timefetched = 0";
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$externalblogs = $DB->get_records_select('blog_external', $sql, array(mktime() - $CFG->externalblogcrontime));
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foreach ($externalblogs as $eb) {
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blog_sync_external_entries($eb);
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}
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}
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// Run blog associations cleanup
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if ($CFG->useblogassociations) {
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require_once($CFG->dirroot . '/blog/lib.php');
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// delete entries whose contextids no longer exists
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mtrace("Deleting blog associations linked to non-existent contexts...", '');
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$DB->delete_records_select('blog_association', 'contextid NOT IN (SELECT id FROM {context})');
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}
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//Run registration updated cron
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mtrace(get_string('siteupdatesstart', 'hub'));
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require_once($CFG->dirroot . '/admin/registration/lib.php');
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$registrationmanager = new registration_manager();
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$registrationmanager->cron();
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mtrace(get_string('siteupdatesend', 'hub'));
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// cleanup file trash
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$fs = get_file_storage();
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$fs->cron();
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//cleanup old session linked tokens
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//deletes the session linked tokens that are over a day old.
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mtrace("Deleting session linked tokens more than one day old...", '');
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$DB->delete_records_select('external_tokens', 'lastaccess < :onedayago AND tokentype = :tokentype',
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array('onedayago' => time() - DAYSECS, 'tokentype' => EXTERNAL_TOKEN_EMBEDDED));
|
|
mtrace('done.');
|
|
|
|
// run any customized cronjobs, if any
|
|
if ($locals = get_plugin_list('local')) {
|
|
mtrace('Processing customized cron scripts ...', '');
|
|
foreach ($locals as $local => $localdir) {
|
|
if (file_exists("$localdir/cron.php")) {
|
|
include("$localdir/cron.php");
|
|
}
|
|
}
|
|
mtrace('done.');
|
|
}
|
|
|
|
|
|
mtrace("Cron script completed correctly");
|
|
|
|
$difftime = microtime_diff($starttime, microtime());
|
|
mtrace("Execution took ".$difftime." seconds");
|
|
|
|
} |