WordPress 4.4

[autoinstalls/wordpress.git] / wp-includes / cron.php

diff --git a/wp-includes/cron.php b/wp-includes/cron.php
index 8b88c1220be96e42b22aa8a53968588e0d82537c..60492c5d045a97391afe096989c4aeb675250592 100644 (file)
--- a/wp-includes/cron.php
+++ b/wp-includes/cron.php
@@ -18,13 +18,18 @@
  * @param int $timestamp Timestamp for when to run the event.
  * @param string $hook Action hook to execute when cron is run.
  * @param array $args Optional. Arguments to pass to the hook's callback function.
- * @return void|false
+ * @return false|void False when an event is not scheduled.
  */
 function wp_schedule_single_event( $timestamp, $hook, $args = array()) {
-       // don't schedule a duplicate if there's already an identical event due within 10 minutes of it
+       // Make sure timestamp is a positive integer
+       if ( ! is_numeric( $timestamp ) || $timestamp <= 0 ) {
+               return false;
+       }
+
+       // Don't schedule a duplicate if there's already an identical event due within 10 minutes of it
        $next = wp_next_scheduled($hook, $args);
        if ( $next && abs( $next - $timestamp ) <= 10 * MINUTE_IN_SECONDS ) {
-               return;
+               return false;
        }
 
        $crons = _get_cron_array();
@@ -67,9 +72,14 @@ function wp_schedule_single_event( $timestamp, $hook, $args = array()) {
  * @param string $recurrence How often the event should recur.
  * @param string $hook Action hook to execute when cron is run.
  * @param array $args Optional. Arguments to pass to the hook's callback function.
- * @return false|void False when does not schedule event.
+ * @return false|void False when an event is not scheduled.
  */
 function wp_schedule_event( $timestamp, $recurrence, $hook, $args = array()) {
+       // Make sure timestamp is a positive integer
+       if ( ! is_numeric( $timestamp ) || $timestamp <= 0 ) {
+               return false;
+       }
+
        $crons = _get_cron_array();
        $schedules = wp_get_schedules();
 
@@ -100,9 +110,14 @@ function wp_schedule_event( $timestamp, $recurrence, $hook, $args = array()) {
  * @param string $recurrence How often the event should recur.
  * @param string $hook Action hook to execute when cron is run.
  * @param array $args Optional. Arguments to pass to the hook's callback function.
- * @return false|void False when does not schedule event.
+ * @return false|void False when an event is not scheduled.
  */
 function wp_reschedule_event( $timestamp, $recurrence, $hook, $args = array() ) {
+       // Make sure timestamp is a positive integer
+       if ( ! is_numeric( $timestamp ) || $timestamp <= 0 ) {
+               return false;
+       }
+
        $crons = _get_cron_array();
        $schedules = wp_get_schedules();
        $key = md5( serialize( $args ) );
@@ -146,8 +161,14 @@ function wp_reschedule_event( $timestamp, $recurrence, $hook, $args = array() )
  * Although not passed to a callback function, these arguments are used
  * to uniquely identify the scheduled event, so they should be the same
  * as those used when originally scheduling the event.
+ * @return false|void False when an event is not unscheduled.
  */
 function wp_unschedule_event( $timestamp, $hook, $args = array() ) {
+       // Make sure timestamp is a positive integer
+       if ( ! is_numeric( $timestamp ) || $timestamp <= 0 ) {
+               return false;
+       }
+
        $crons = _get_cron_array();
        $key = md5(serialize($args));
        unset( $crons[$timestamp][$hook][$key] );
@@ -248,7 +269,7 @@ function spawn_cron( $gmt_time = 0 ) {
                return;
 
        if ( defined( 'ALTERNATE_WP_CRON' ) && ALTERNATE_WP_CRON ) {
-               if ( ! empty( $_POST ) || defined( 'DOING_AJAX' ) ||  defined( 'XMLRPC_REQUEST' ) ) {
+               if ( 'GET' !== $_SERVER['REQUEST_METHOD'] || defined( 'DOING_AJAX' ) ||  defined( 'XMLRPC_REQUEST' ) ) {
                        return;
                }
 
@@ -296,7 +317,7 @@ function spawn_cron( $gmt_time = 0 ) {
                'args' => array(
                        'timeout'   => 0.01,
                        'blocking'  => false,
-                       /** This filter is documented in wp-includes/class-http.php */
+                       /** This filter is documented in wp-includes/class-wp-http-streams.php */
                        'sslverify' => apply_filters( 'https_local_ssl_verify', false )
                )
        ) );