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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>PoweredCache Hooks: Source: classes/Cron.php</title>
<script src="scripts/prettify/prettify.js"> </script>
<script src="scripts/prettify/lang-css.js"> </script>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css">
<link type="text/css" rel="stylesheet" href="styles/jsdoc-default.css">
</head>
<body>
<div id="main">
<h1 class="page-title">Source: classes/Cron.php</h1>
<section>
<article>
<pre class="prettyprint source linenums"><code><?php
/**
* Cron based functionalities
*
* @package PoweredCache
*/
namespace PoweredCache;
use const PoweredCache\Constants\PURGE_CACHE_CRON_NAME;
use const PoweredCache\Constants\PURGE_FO_CRON_NAME;
use function PoweredCache\Utils\get_expired_files;
use function PoweredCache\Utils\is_dir_empty;
use function PoweredCache\Utils\site_cache_dir;
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Class Cron
*/
class Cron {
/**
* Placeholder constructor
*/
public function __construct() {
}
/**
* Setup actions and filters
*
* @since 1.0
*/
private function setup() {
add_action( PURGE_CACHE_CRON_NAME, array( $this, 'purge_expired_page_cache' ) );
add_action( PURGE_FO_CRON_NAME, array( $this, 'purge_expired_minify_files' ) );
add_action( 'init', array( $this, 'schedule_page_cache_events' ) );
add_action( 'init', array( $this, 'schedule_fo_cache_events' ) );
add_filter( 'cron_schedules', array( $this, 'cron_schedules' ) ); // phpcs:ignore WordPress.WP.CronInterval.ChangeDetected
}
/**
* Add custom cron schedule
*
* @param array $schedules registered cron schedules
*
* @return array $schedules
* @since 1.0
*/
public function cron_schedules( $schedules ) {
$settings = \PoweredCache\Utils\get_settings();
$interval = $settings['cache_timeout'] * 60; // in seconds
$schedules['powered_cache'] = [
/**
* Filters page cache purge interval
*
* @hook powered_cache_cache_purge_interval
*
* @param {int} TTL in seconds.
*
* @return {int} New value.
* @since 2.0
*/
'interval' => apply_filters( 'powered_cache_cache_purge_interval', $interval ),
'display' => esc_html__( 'Powered Cache Purge Interval', 'powered-cache' ),
];
return $schedules;
}
/**
* Unschedule events
*
* @since 1.0
*/
public function unschedule_events() {
$timestamp = wp_next_scheduled( PURGE_CACHE_CRON_NAME );
wp_unschedule_event( $timestamp, PURGE_CACHE_CRON_NAME );
$timestamp = wp_next_scheduled( PURGE_FO_CRON_NAME );
wp_unschedule_event( $timestamp, PURGE_FO_CRON_NAME );
}
/**
* Setup cron jobs
*
* @since 1.0
*/
public function schedule_page_cache_events() {
$settings = \PoweredCache\Utils\get_settings();
$timestamp = wp_next_scheduled( PURGE_CACHE_CRON_NAME );
// we don't need when page cache off
if ( true !== $settings['enable_page_cache'] ) {
wp_unschedule_event( $timestamp, PURGE_CACHE_CRON_NAME );
return;
}
// Expire cache never
if ( intval( $settings['cache_timeout'] ) === 0 ) {
wp_unschedule_event( $timestamp, PURGE_CACHE_CRON_NAME );
return;
}
if ( ! $timestamp ) {
/**
* Only use `powered_cache` interval when TTL under the an hour
*/
if ( intval( $settings['cache_timeout'] ) < 60 ) {
return wp_schedule_event( time(), 'powered_cache', PURGE_CACHE_CRON_NAME );
}
return wp_schedule_event( time(), 'hourly', PURGE_CACHE_CRON_NAME );
}
}
/**
* Schedule a cron event keep only most recent min. files in cache
*
* @return bool|void|\WP_Error
*/
public function schedule_fo_cache_events() {
$timestamp = wp_next_scheduled( PURGE_FO_CRON_NAME );
if ( ! file_exists( POWERED_CACHE_FO_CACHE_DIR ) || is_dir_empty( POWERED_CACHE_FO_CACHE_DIR ) ) {
return;
}
if ( ! $timestamp ) {
return wp_schedule_event( time(), 'hourly', PURGE_FO_CRON_NAME );
}
}
/**
* Initiate a cache purge
*
* @since 1.0
*/
public function purge_expired_page_cache() {
$settings = \PoweredCache\Utils\get_settings();
// Do nothing, caching is turned off
if ( true !== $settings['enable_page_cache'] ) {
return;
}
$lifespan = $settings['cache_timeout'] * 60; // TTL in seconds
$expired_files = get_expired_files( site_cache_dir(), $lifespan );
foreach ( $expired_files as $file_path ) {
\PoweredCache\Utils\log( sprintf( 'Cleanup via cron: %s', $file_path ) );
@unlink( $file_path ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
}
// cleanup dirs..
foreach ( $expired_files as $file_path ) {
$dir = dirname( $file_path );
if ( file_exists( $dir ) && is_dir_empty( $dir ) ) {
@rmdir( $dir ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
}
}
/**
* Fire when expired files deleted
*
* @since 2.0 added $expired_files $arg
* @since 1.0
*/
do_action( 'powered_cache_expired_files_deleted', $expired_files );
}
/**
* Remove minify files
*/
public function purge_expired_minify_files() {
/**
* Filters default TTL for minified assets.
*
* @hook powered_cache_fo_cache_ttl
*
* @param {int} TTL in seconds.
*
* @return {int} New value.
* @since 2.0
*/
$lifespan = apply_filters( 'powered_cache_fo_cache_ttl', 60 * 60 ); // in seconds
$expired_files = get_expired_files( POWERED_CACHE_FO_CACHE_DIR, $lifespan );
foreach ( $expired_files as $file_path ) {
\PoweredCache\Utils\log( sprintf( 'Cleanup via cron: %s', $file_path ) );
@unlink( $file_path ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
}
}
/**
* Return an instance of the current class, create one if it doesn't exist
*
* @return object
* @since 1.0
*/
public static function factory() {
static $instance;
if ( ! $instance ) {
$instance = new self();
$instance->setup();
}
return $instance;
}
}
</code></pre>
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