__ __ __ __ _____ _ _ _____ _ _ _
| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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<?php
declare(strict_types=1);
namespace Automattic\WooCommerce\Internal\Api;
use Automattic\WooCommerce\Api\Infrastructure\Main;
use Automattic\WooCommerce\Api\Infrastructure\ResolverHelpers;
/**
* Deletes expired OPcache cache files via Action Scheduler.
*/
class OpcacheFileExpiry {
/**
* Action Scheduler hook name for the cleanup job.
*/
public const ACTION_HOOK = 'woocommerce_graphql_opcache_cleanup';
/**
* Action Scheduler group for the cleanup job.
*/
public const ACTION_GROUP = 'woocommerce-graphql';
/**
* Object-cache key used to short-circuit {@see self::ensure_scheduled()}.
*/
private const SCHEDULED_CACHE_KEY = 'graphql_opcache_cleanup_scheduled';
/**
* Delete OPcache cache files older than {@see QueryCache::get_cache_ttl()}.
*
* AST contents are a pure function of the query, so this is a disk-usage
* bound, not a correctness concern. Returns the count.
*/
public static function delete_expired_files(): int {
$dir = QueryCache::get_opcache_cache_dir();
if ( '' === $dir || ! is_dir( $dir ) ) {
return 0;
}
$fs = ResolverHelpers::wp_filesystem();
if ( ! $fs ) {
return 0;
}
$files = glob( $dir . '/*.php' );
if ( false === $files ) {
return 0;
}
$cutoff = time() - QueryCache::get_cache_ttl();
$count = 0;
foreach ( $files as $path ) {
$mtime = $fs->mtime( $path );
if ( false !== $mtime && $mtime < $cutoff && $fs->delete( $path ) ) {
++$count;
}
}
return $count;
}
/**
* Action Scheduler callback: delete expired files and reschedule.
*
* Immediate reschedule when files were deleted (drain the backlog), 24h
* otherwise. Skipped when the feature is disabled.
*
* @internal
*/
public static function handle_cleanup_action(): void {
$interval = self::delete_expired_files() > 0 ? 1 : DAY_IN_SECONDS;
if ( ! Main::is_enabled() ) {
return;
}
if ( function_exists( 'as_schedule_single_action' ) ) {
as_schedule_single_action( time() + $interval, self::ACTION_HOOK, array(), self::ACTION_GROUP );
}
}
/**
* Schedule the cleanup if it isn't already scheduled.
*
* Called from {@see QueryCache::write_to_opcache()} and
* {@see QueryCache::read_from_opcache()} so the cleanup is rescheduled
* after a feature-disable/re-enable cycle even when every request hits a
* cached file (no writes).
*/
public static function ensure_scheduled(): void {
if ( wp_cache_get( self::SCHEDULED_CACHE_KEY, QueryCache::CACHE_GROUP ) ) {
return;
}
if ( ! function_exists( 'as_has_scheduled_action' ) || ! function_exists( 'as_schedule_single_action' ) ) {
return;
}
if ( ! as_has_scheduled_action( self::ACTION_HOOK, array(), self::ACTION_GROUP ) ) {
as_schedule_single_action( time() + DAY_IN_SECONDS, self::ACTION_HOOK, array(), self::ACTION_GROUP );
}
wp_cache_set( self::SCHEDULED_CACHE_KEY, true, QueryCache::CACHE_GROUP, HOUR_IN_SECONDS );
}
}