nextcloud/cron.php

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<?php
/**
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* @author Boris Rybalkin <ribalkin@gmail.com>
* @author Christopher Schäpers <kondou@ts.unde.re>
* @author Jakob Sack <mail@jakobsack.de>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Oliver Kohl D.Sc. <oliver@kohl.bz>
* @author Robin Appelman <icewind@owncloud.com>
* @author Steffen Lindner <mail@steffen-lindner.de>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Vincent Petry <pvince81@owncloud.com>
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*
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* @copyright Copyright (c) 2015, ownCloud, Inc.
* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
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*
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* This program 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
* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
*/
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// Unfortunately we need this class for shutdown function
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class TemporaryCronClass {
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public static $sent = false;
public static $lockfile = "";
public static $keeplock = false;
}
// We use this function to handle (unexpected) shutdowns
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function handleUnexpectedShutdown() {
// Delete lockfile
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if (!TemporaryCronClass::$keeplock && file_exists(TemporaryCronClass::$lockfile)) {
unlink(TemporaryCronClass::$lockfile);
}
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// Say goodbye if the app did not shutdown properly
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if (!TemporaryCronClass::$sent) {
if (OC::$CLI) {
echo 'Unexpected error!' . PHP_EOL;
} else {
OC_JSON::error(array('data' => array('message' => 'Unexpected error!')));
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}
}
}
try {
require_once 'lib/base.php';
if (\OCP\Util::needUpgrade()) {
\OCP\Util::writeLog('cron', 'Update required, skipping cron', \OCP\Util::DEBUG);
exit();
}
// load all apps to get all api routes properly setup
OC_App::loadApps();
\OC::$server->getSession()->close();
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// initialize a dummy memory session
\OC::$server->setSession(new \OC\Session\Memory(''));
$logger = \OC_Log::$object;
// Don't do anything if ownCloud has not been installed
if (!OC_Config::getValue('installed', false)) {
exit(0);
}
// Handle unexpected errors
register_shutdown_function('handleUnexpectedShutdown');
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\OC::$server->getTempManager()->cleanOld();
// Exit if background jobs are disabled!
$appmode = OC_BackgroundJob::getExecutionType();
if ($appmode == 'none') {
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TemporaryCronClass::$sent = true;
if (OC::$CLI) {
echo 'Background Jobs are disabled!' . PHP_EOL;
} else {
OC_JSON::error(array('data' => array('message' => 'Background jobs disabled!')));
}
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exit(1);
}
if (OC::$CLI) {
// Create lock file first
TemporaryCronClass::$lockfile = OC_Config::getValue("datadirectory", OC::$SERVERROOT . '/data') . '/cron.lock';
// We call ownCloud from the CLI (aka cron)
if ($appmode != 'cron') {
// Use cron in future!
OC_BackgroundJob::setExecutionType('cron');
}
// check if backgroundjobs is still running
if (file_exists(TemporaryCronClass::$lockfile)) {
TemporaryCronClass::$keeplock = true;
TemporaryCronClass::$sent = true;
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echo "Another instance of cron.php is still running!" . PHP_EOL;
exit(1);
}
// Create a lock file
touch(TemporaryCronClass::$lockfile);
// Work
$jobList = \OC::$server->getJobList();
$jobs = $jobList->getAll();
foreach ($jobs as $job) {
$job->execute($jobList, $logger);
}
} else {
// We call cron.php from some website
if ($appmode == 'cron') {
// Cron is cron :-P
OC_JSON::error(array('data' => array('message' => 'Backgroundjobs are using system cron!')));
} else {
// Work and success :-)
$jobList = \OC::$server->getJobList();
$job = $jobList->getNext();
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if ($job != null) {
$job->execute($jobList, $logger);
$jobList->setLastJob($job);
}
OC_JSON::success();
}
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}
// done!
TemporaryCronClass::$sent = true;
// Log the successful cron execution
if (\OC::$server->getConfig()->getSystemValue('cron_log', true)) {
\OC::$server->getAppConfig()->setValue('core', 'lastcron', time());
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}
exit();
} catch (Exception $ex) {
\OCP\Util::writeLog('cron', $ex->getMessage(), \OCP\Util::FATAL);
}