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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Artem Sidorenko <artem@posteo.de>
* @author Christopher Schäpers <kondou@ts.unde.re>
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Daniel Kesselberg <mail@danielkesselberg.de>
* @author hoellen <dev@hoellen.eu>
* @author J0WI <J0WI@users.noreply.github.com>
* @author Jakob Sack <mail@jakobsack.de>
* @author Joas Schilling <coding@schilljs.com>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Ko- <k.stoffelen@cs.ru.nl>
* @author Michael Kuhn <michael@ikkoku.de>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Oliver Kohl D.Sc. <oliver@kohl.bz>
* @author Robin Appelman <robin@icewind.nl>
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Steffen Lindner <mail@steffen-lindner.de>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Vincent Petry <vincent@nextcloud.com>
* @author Stephen Michel <git@smichel.me>
*
* @license AGPL-3.0
*
* 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.
*
* This program 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 Affero General Public License for more details.
*
* 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/>
*
*/
require_once __DIR__ . '/lib/versioncheck.php';
try {
require_once __DIR__ . '/lib/base.php';
if (\OCP\Util::needUpgrade()) {
\OC::$server->getLogger()->debug('Update required, skipping cron', ['app' => 'cron']);
exit;
}
if ((bool) \OC::$server->getSystemConfig()->getValue('maintenance', false)) {
\OC::$server->getLogger()->debug('We are in maintenance mode, skipping cron', ['app' => 'cron']);
exit;
}
// load all apps to get all api routes properly setup
OC_App::loadApps();
\OC::$server->getSession()->close();
// initialize a dummy memory session
$session = new \OC\Session\Memory('');
$cryptoWrapper = \OC::$server->getSessionCryptoWrapper();
$session = $cryptoWrapper->wrapSession($session);
\OC::$server->setSession($session);
$logger = \OC::$server->getLogger();
$config = \OC::$server->getConfig();
$tempManager = \OC::$server->getTempManager();
// Don't do anything if Nextcloud has not been installed
if (!$config->getSystemValue('installed', false)) {
exit(0);
}
$tempManager->cleanOld();
// Exit if background jobs are disabled!
$appMode = $config->getAppValue('core', 'backgroundjobs_mode', 'ajax');
if ($appMode === 'none') {
if (OC::$CLI) {
echo 'Background Jobs are disabled!' . PHP_EOL;
} else {
OC_JSON::error(['data' => ['message' => 'Background jobs disabled!']]);
}
exit(1);
}
if (OC::$CLI) {
// set to run indefinitely if needed
if (strpos(@ini_get('disable_functions'), 'set_time_limit') === false) {
@set_time_limit(0);
}
// the cron job must be executed with the right user
if (!function_exists('posix_getuid')) {
echo "The posix extensions are required - see https://www.php.net/manual/en/book.posix.php" . PHP_EOL;
exit(1);
}
$user = posix_getuid();
$configUser = fileowner(OC::$configDir . 'config.php');
if ($user !== $configUser) {
echo "Console has to be executed with the user that owns the file config/config.php" . PHP_EOL;
echo "Current user id: " . $user . PHP_EOL;
echo "Owner id of config.php: " . $configUser . PHP_EOL;
exit(1);
}
// We call Nextcloud from the CLI (aka cron)
if ($appMode !== 'cron') {
$config->setAppValue('core', 'backgroundjobs_mode', 'cron');
}
// Low-load hours
$onlyTimeSensitive = false;
$startHour = $config->getSystemValueInt('maintenance_window_start', 100);
if ($startHour <= 23) {
$date = new \DateTime('now', new \DateTimeZone('UTC'));
$currentHour = (int) $date->format('G');
$endHour = $startHour + 4;
if ($startHour <= 20) {
// Start time: 01:00
// End time: 05:00
// Only run sensitive tasks when it's before the start or after the end
$onlyTimeSensitive = $currentHour < $startHour || $currentHour > $endHour;
} else {
// Start time: 23:00
// End time: 03:00
$endHour -= 24; // Correct the end time from 27:00 to 03:00
// Only run sensitive tasks when it's after the end and before the start
$onlyTimeSensitive = $currentHour > $endHour && $currentHour < $startHour;
}
}
// Work
$jobList = \OC::$server->getJobList();
// We only ask for jobs for 14 minutes, because after 5 minutes the next
// system cron task should spawn and we want to have at most three
// cron jobs running in parallel.
$endTime = time() + 14 * 60;
$executedJobs = [];
while ($job = $jobList->getNext($onlyTimeSensitive)) {
if (isset($executedJobs[$job->getId()])) {
$jobList->unlockJob($job);
break;
}
$jobDetails = get_class($job) . ' (id: ' . $job->getId() . ', arguments: ' . json_encode($job->getArgument()) . ')';
$logger->debug('CLI cron call has selected job ' . $jobDetails, ['app' => 'cron']);
$memoryBefore = memory_get_usage();
$memoryPeakBefore = memory_get_peak_usage();
$job->execute($jobList, $logger);
$memoryAfter = memory_get_usage();
$memoryPeakAfter = memory_get_peak_usage();
if ($memoryAfter - $memoryBefore > 10_000_000) {
$logger->warning('Used memory grew by more than 10 MB when executing job ' . $jobDetails . ': ' . \OCP\Util::humanFileSize($memoryAfter). ' (before: ' . \OCP\Util::humanFileSize($memoryBefore) . ')', ['app' => 'cron']);
}
if ($memoryPeakAfter > 300_000_000) {
$logger->warning('Cron job used more than 300 MB of ram after executing job ' . $jobDetails . ': ' . \OCP\Util::humanFileSize($memoryPeakAfter) . ' (before: ' . \OCP\Util::humanFileSize($memoryPeakBefore) . ')', ['app' => 'cron']);
}
// clean up after unclean jobs
\OC_Util::tearDownFS();
$tempManager->clean();
$jobList->setLastJob($job);
$executedJobs[$job->getId()] = true;
unset($job);
if (time() > $endTime) {
break;
}
}
} else {
// We call cron.php from some website
if ($appMode === 'cron') {
// Cron is cron :-P
OC_JSON::error(['data' => ['message' => 'Backgroundjobs are using system cron!']]);
} else {
// Work and success :-)
$jobList = \OC::$server->getJobList();
$job = $jobList->getNext();
if ($job != null) {
$logger->debug('WebCron call has selected job with ID ' . strval($job->getId()), ['app' => 'cron']);
$job->execute($jobList, $logger);
$jobList->setLastJob($job);
}
OC_JSON::success();
}
}
// Log the successful cron execution
$config->setAppValue('core', 'lastcron', time());
exit();
} catch (Exception $ex) {
\OC::$server->getLogger()->logException($ex, ['app' => 'cron']);
echo $ex . PHP_EOL;
exit(1);
} catch (Error $ex) {
\OC::$server->getLogger()->logException($ex, ['app' => 'cron']);
echo $ex . PHP_EOL;
exit(1);
}
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