113 lines
2.9 KiB
PHP
113 lines
2.9 KiB
PHP
<?php
|
|
/**
|
|
* WordPress Cron Implementation for hosts, which do not offer CRON or for which
|
|
* the user has not set up a CRON job pointing to this file.
|
|
*
|
|
* The HTTP request to this file will not slow down the visitor who happens to
|
|
* visit when the cron job is needed to run.
|
|
*
|
|
* @package WordPress
|
|
*/
|
|
|
|
ignore_user_abort(true);
|
|
|
|
if ( !empty($_POST) || defined('DOING_AJAX') || defined('DOING_CRON') )
|
|
die();
|
|
|
|
/**
|
|
* Tell WordPress we are doing the CRON task.
|
|
*
|
|
* @var bool
|
|
*/
|
|
define('DOING_CRON', true);
|
|
|
|
if ( !defined('ABSPATH') ) {
|
|
/** Set up WordPress environment */
|
|
require_once( dirname( __FILE__ ) . '/wp-load.php' );
|
|
}
|
|
|
|
// Uncached doing_cron transient fetch
|
|
function _get_cron_lock() {
|
|
global $wpdb;
|
|
|
|
$value = 0;
|
|
if ( wp_using_ext_object_cache() ) {
|
|
// Skip local cache and force refetch of doing_cron transient in case
|
|
// another processs updated the cache
|
|
$value = wp_cache_get( 'doing_cron', 'transient', true );
|
|
} else {
|
|
$row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", '_transient_doing_cron' ) );
|
|
if ( is_object( $row ) )
|
|
$value = $row->option_value;
|
|
}
|
|
|
|
return $value;
|
|
}
|
|
|
|
if ( false === $crons = _get_cron_array() )
|
|
die();
|
|
|
|
$keys = array_keys( $crons );
|
|
$gmt_time = microtime( true );
|
|
|
|
if ( isset($keys[0]) && $keys[0] > $gmt_time )
|
|
die();
|
|
|
|
$doing_cron_transient = get_transient( 'doing_cron');
|
|
|
|
// Use global $doing_wp_cron lock otherwise use the GET lock. If no lock, trying grabbing a new lock.
|
|
if ( empty( $doing_wp_cron ) ) {
|
|
if ( empty( $_GET[ 'doing_wp_cron' ] ) ) {
|
|
// Called from external script/job. Try setting a lock.
|
|
if ( $doing_cron_transient && ( $doing_cron_transient + WP_CRON_LOCK_TIMEOUT > $gmt_time ) )
|
|
return;
|
|
$doing_cron_transient = $doing_wp_cron = sprintf( '%.22F', microtime( true ) );
|
|
set_transient( 'doing_cron', $doing_wp_cron );
|
|
} else {
|
|
$doing_wp_cron = $_GET[ 'doing_wp_cron' ];
|
|
}
|
|
}
|
|
|
|
// Check lock
|
|
if ( $doing_cron_transient != $doing_wp_cron )
|
|
return;
|
|
|
|
foreach ( $crons as $timestamp => $cronhooks ) {
|
|
if ( $timestamp > $gmt_time )
|
|
break;
|
|
|
|
foreach ( $cronhooks as $hook => $keys ) {
|
|
|
|
foreach ( $keys as $k => $v ) {
|
|
|
|
$schedule = $v['schedule'];
|
|
|
|
if ( $schedule != false ) {
|
|
$new_args = array($timestamp, $schedule, $hook, $v['args']);
|
|
call_user_func_array('wp_reschedule_event', $new_args);
|
|
}
|
|
|
|
wp_unschedule_event( $timestamp, $hook, $v['args'] );
|
|
|
|
/**
|
|
* Fires scheduled events.
|
|
*
|
|
* @since 2.1.0
|
|
*
|
|
* @param string $hook Name of the hook that was scheduled to be fired.
|
|
* @param array $v['args'] The arguments to be passed to the hook.
|
|
*/
|
|
do_action_ref_array( $hook, $v['args'] );
|
|
|
|
// If the hook ran too long and another cron process stole the lock, quit.
|
|
if ( _get_cron_lock() != $doing_wp_cron )
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( _get_cron_lock() == $doing_wp_cron )
|
|
delete_transient( 'doing_cron' );
|
|
|
|
die();
|