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Cron: Make flushing response data and ignore_user_abort optional in wp-cron #12210

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Cron: Make flushing response data and ignore_user_abort optional in wp-cron #12210

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33 changes: 27 additions & 6 deletions src/wp-cron.php
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Original file line number Diff line number Diff line change
Expand Up @@ -16,18 +16,39 @@
* @package WordPress
*/

ignore_user_abort( true );
/*
* Prevent the cron from being killed if the connection is closed, unless
* WP_CRON_DISABLE_IGNORE_ABORT is set to true in wp-config.php.
*
* Some environments (e.g. LiteSpeed with LSPHP) may not support this
* behavior, in which case setting WP_CRON_DISABLE_IGNORE_ABORT to true
* can help avoid unexpected side effects.
*/
if ( ! defined( 'WP_CRON_DISABLE_IGNORE_ABORT' ) || ! WP_CRON_DISABLE_IGNORE_ABORT ) {
ignore_user_abort( true );
}

if ( ! headers_sent() ) {
header( 'Expires: Wed, 11 Jan 1984 05:00:00 GMT' );
header( 'Cache-Control: no-cache, must-revalidate, max-age=0' );
}

// Don't run cron until the request finishes, if possible.
if ( function_exists( 'fastcgi_finish_request' ) ) {
fastcgi_finish_request();
} elseif ( function_exists( 'litespeed_finish_request' ) ) {
litespeed_finish_request();
/*
* Finish the HTTP response early so cron runs in the background, if possible.
* This can be disabled by setting WP_CRON_DISABLE_FLUSH to true in wp-config.php.
*
* On some server configurations (notably LiteSpeed with LSPHP), calling
* litespeed_finish_request() or fastcgi_finish_request() can prematurely
* terminate the cron process. Setting WP_CRON_DISABLE_FLUSH to true prevents
* this and allows cron jobs to complete normally.
*/
if ( ! defined( 'WP_CRON_DISABLE_FLUSH' ) || ! WP_CRON_DISABLE_FLUSH ) {
// Don't run cron until the request finishes, if possible.
if ( function_exists( 'fastcgi_finish_request' ) ) {
fastcgi_finish_request();
} elseif ( function_exists( 'litespeed_finish_request' ) ) {
litespeed_finish_request();
}
}

if ( ! empty( $_POST ) || defined( 'DOING_AJAX' ) || defined( 'DOING_CRON' ) ) {
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