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- <?php
-
- function wp_schedule_single_event( $timestamp, $hook, $args = array()) {
- $crons = _get_cron_array();
- $key = md5(serialize($args));
- $crons[$timestamp][$hook][$key] = array( 'schedule' => false, 'args' => $args );
- uksort( $crons, "strnatcasecmp" );
- _set_cron_array( $crons );
- }
-
- function wp_schedule_event( $timestamp, $recurrence, $hook, $args = array()) {
- $crons = _get_cron_array();
- $schedules = wp_get_schedules();
- $key = md5(serialize($args));
- if ( !isset( $schedules[$recurrence] ) )
- return false;
- $crons[$timestamp][$hook][$key] = array( 'schedule' => $recurrence, 'args' => $args, 'interval' => $schedules[$recurrence]['interval'] );
- uksort( $crons, "strnatcasecmp" );
- _set_cron_array( $crons );
- }
-
- function wp_reschedule_event( $timestamp, $recurrence, $hook, $args = array()) {
- $crons = _get_cron_array();
- $schedules = wp_get_schedules();
- $key = md5(serialize($args));
- $interval = 0;
-
- // First we try to get it from the schedule
- if ( 0 == $interval )
- $interval = $schedules[$recurrence]['interval'];
- // Now we try to get it from the saved interval in case the schedule disappears
- if ( 0 == $interval )
- $interval = $crons[$timestamp][$hook][$key]['interval'];
- // Now we assume something is wrong and fail to schedule
- if ( 0 == $interval )
- return false;
-
- while ( $timestamp < time() + 1 )
- $timestamp += $interval;
-
- wp_schedule_event( $timestamp, $recurrence, $hook, $args );
- }
-
- function wp_unschedule_event( $timestamp, $hook, $args = array() ) {
- $crons = _get_cron_array();
- $key = md5(serialize($args));
- unset( $crons[$timestamp][$hook][$key] );
- if ( empty($crons[$timestamp][$hook]) )
- unset( $crons[$timestamp][$hook] );
- if ( empty($crons[$timestamp]) )
- unset( $crons[$timestamp] );
- _set_cron_array( $crons );
- }
-
- function wp_clear_scheduled_hook( $hook ) {
- $args = array_slice( func_get_args(), 1 );
-
- while ( $timestamp = wp_next_scheduled( $hook, $args ) )
- wp_unschedule_event( $timestamp, $hook, $args );
- }
-
- function wp_next_scheduled( $hook, $args = array() ) {
- $crons = _get_cron_array();
- $key = md5(serialize($args));
- if ( empty($crons) )
- return false;
- foreach ( $crons as $timestamp => $cron ) {
- if ( isset( $cron[$hook][$key] ) )
- return $timestamp;
- }
- return false;
- }
-
- function spawn_cron() {
- $crons = _get_cron_array();
-
- if ( !is_array($crons) )
- return;
-
- $keys = array_keys( $crons );
- if ( array_shift( $keys ) > time() )
- return;
-
- $cron_url = get_option( 'siteurl' ) . '/wp-cron.php';
- $parts = parse_url( $cron_url );
-
- if ($parts['scheme'] == 'https') {
- // support for SSL was added in 4.3.0
- if (version_compare(phpversion(), '4.3.0', '>=') && function_exists('openssl_open')) {
- $port = isset($parts['port']) ? $parts['port'] : 443;
- $argyle = @fsockopen('ssl://' . $parts['host'], $port, $errno, $errstr, 0.01);
- } else {
- return false;
- }
- } else {
- $port = isset($parts['port']) ? $parts['port'] : 80;
- $argyle = @ fsockopen( $parts['host'], $port, $errno, $errstr, 0.01 );
- }
-
- if ( $argyle )
- fputs( $argyle,
- "GET {$parts['path']}?check=" . wp_hash('187425') . " HTTP/1.0\r\n"
- . "Host: {$_SERVER['HTTP_HOST']}\r\n\r\n"
- );
- }
-
- function wp_cron() {
- // Prevent infinite loops caused by lack of wp-cron.php
- if ( strpos($_SERVER['REQUEST_URI'], '/wp-cron.php') !== false )
- return;
-
- $crons = _get_cron_array();
-
- if ( !is_array($crons) )
- return;
-
- $keys = array_keys( $crons );
- if ( isset($keys[0]) && $keys[0] > time() )
- return;
-
- $schedules = wp_get_schedules();
- foreach ( $crons as $timestamp => $cronhooks ) {
- if ( $timestamp > time() ) break;
- foreach ( $cronhooks as $hook => $args ) {
- if ( isset($schedules[$hook]['callback']) && !call_user_func( $schedules[$hook]['callback'] ) )
- continue;
- spawn_cron();
- break 2;
- }
- }
- }
-
- function wp_get_schedules() {
- $schedules = array(
- 'hourly' => array( 'interval' => 3600, 'display' => __('Once Hourly') ),
- 'twicedaily' => array( 'interval' => 43200, 'display' => __('Twice Daily') ),
- 'daily' => array( 'interval' => 86400, 'display' => __('Once Daily') ),
- );
- return array_merge( apply_filters( 'cron_schedules', array() ), $schedules );
- }
-
- function wp_get_schedule($hook, $args = array()) {
- $crons = _get_cron_array();
- $key = md5(serialize($args));
- if ( empty($crons) )
- return false;
- foreach ( $crons as $timestamp => $cron ) {
- if ( isset( $cron[$hook][$key] ) )
- return $cron[$hook][$key]['schedule'];
- }
- return false;
- }
-
- //
- // Private functions
- //
-
- function _get_cron_array() {
- $cron = get_option('cron');
- if ( ! is_array($cron) )
- return false;
-
- if ( !isset($cron['version']) )
- $cron = _upgrade_cron_array($cron);
-
- unset($cron['version']);
-
- return $cron;
- }
-
- function _set_cron_array($cron) {
- $cron['version'] = 2;
- update_option( 'cron', $cron );
- }
-
- function _upgrade_cron_array($cron) {
- if ( isset($cron['version']) && 2 == $cron['version'])
- return $cron;
-
- $new_cron = array();
-
- foreach ($cron as $timestamp => $hooks) {
- foreach ( $hooks as $hook => $args ) {
- $key = md5(serialize($args['args']));
- $new_cron[$timestamp][$hook][$key] = $args;
- }
- }
-
- $new_cron['version'] = 2;
- update_option( 'cron', $new_cron );
- return $new_cron;
- }
-
- ?>
-