nextcloud/cron.php

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PHP
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<?php
/**
* ownCloud
*
* @author Jakob Sack
* @copyright 2012 Jakob Sack owncloud@jakobsack.de
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
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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 );
}
// Say goodbye if the app did not shutdown properly
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if( !TemporaryCronClass::$sent ) {
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if( OC::$CLI ) {
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echo 'Unexpected error!'.PHP_EOL;
}
else{
OC_JSON::error( array( 'data' => array( 'message' => 'Unexpected error!')));
}
}
}
$RUNTIME_NOSETUPFS = true;
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require_once 'lib/base.php';
session_write_close();
// Don't do anything if ownCloud has not been installed
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if( !OC_Config::getValue( 'installed', false )) {
exit( 0 );
}
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// Handle unexpected errors
register_shutdown_function('handleUnexpectedShutdown');
// Delete temp folder
OC_Helper::cleanTmpNoClean();
// Exit if background jobs are disabled!
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$appmode = OC_BackgroundJob::getExecutionType();
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if( $appmode == 'none' ) {
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TemporaryCronClass::$sent = true;
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if( OC::$CLI ) {
echo 'Background Jobs are disabled!'.PHP_EOL;
}
else{
OC_JSON::error( array( 'data' => array( 'message' => 'Background jobs disabled!')));
}
exit( 1 );
}
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if( OC::$CLI ) {
// Create lock file first
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TemporaryCronClass::$lockfile = OC_Config::getValue( "datadirectory", OC::$SERVERROOT.'/data' ).'/cron.lock';
// We call ownCloud from the CLI (aka cron)
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if( $appmode != 'cron' ) {
// Use cron in feature!
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OC_BackgroundJob::setExecutionType('cron' );
}
// check if backgroundjobs is still running
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if( file_exists( TemporaryCronClass::$lockfile )) {
TemporaryCronClass::$keeplock = true;
TemporaryCronClass::$sent = true;
echo "Another instance of cron.php is still running!";
exit( 1 );
}
// Create a lock file
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touch( TemporaryCronClass::$lockfile );
// Work
OC_BackgroundJob_Worker::doAllSteps();
}
else{
// We call cron.php from some website
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if( $appmode == 'cron' ) {
// Cron is cron :-P
OC_JSON::error( array( 'data' => array( 'message' => 'Backgroundjobs are using system cron!')));
}
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else{
// Work and success :-)
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OC_BackgroundJob_Worker::doNextStep();
OC_JSON::success();
}
}
// done!
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TemporaryCronClass::$sent = true;
exit();