177 lines
4.2 KiB
PHP
177 lines
4.2 KiB
PHP
<?php
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namespace ShortPixel;
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if ( ! defined( 'ABSPATH' ) ) {
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exit; // Exit if accessed directly.
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}
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use ShortPixel\ShortPixelLogger\ShortPixelLogger as Log;
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class cacheRemover
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{
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protected $has_supercache = false; // supercache seems to replace quite fine, without our help. @todo Test if this is needed
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protected $has_w3tc = false;
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protected $has_wpengine = false;
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protected $has_fastestcache = false;
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protected $has_siteground = false;
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protected $has_litespeed = false;
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private static $instance;
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public function __construct()
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{
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$this->addHooks();
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$this->checkCaches();
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}
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public static function getInstance()
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{
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if (is_null(self::$instance))
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self::$instance = new cacheRemover();
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return self::$instance;
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}
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public function addHooks()
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{
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add_action('shortpixel/image/optimised', array($this, 'flushCache'));
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}
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/** Checks which cache plugins are active on the moment a flush is needed */
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public function checkCaches()
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{
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if ( function_exists( 'w3tc_pgcache_flush' ) )
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$this->has_w3tc = true;
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if ( function_exists('wp_cache_clean_cache') )
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$this->has_supercache = true;
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if ( class_exists( 'WpeCommon' ) )
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$this->has_wpengine = true;
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global $wp_fastest_cache;
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if ( method_exists( 'WpFastestCache', 'deleteCache' ) && !empty( $wp_fastest_cache ) )
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$this->has_fastestcache = true;
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// SG SuperCacher
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if (function_exists('sg_cachepress_purge_cache')) {
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$this->has_siteground = true;
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}
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if (defined( 'LSCWP_DIR' ))
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{
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$this->has_litespeed = true;
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}
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// @todo WpRocket?
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// @todo BlueHost Caching?
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}
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/* Tries to flush cache there were we have issues
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*
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* @param Array $args Argument Array to provide data.
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*/
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public function flushCache($imageItem)
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{
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if ($imageItem->get('type') == 'custom')
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{
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$post_id = 0;
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}
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else {
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$post_id = $imageItem->get('id');
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}
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// important - first check the available cache plugins
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$this->checkCaches();
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$bool = apply_filters('shortpixel/external/flush_cache', true, $post_id, $imageItem);
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if (false === $bool)
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{
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return false;
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}
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// general WP
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if ($post_id > 0)
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clean_post_cache($post_id);
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else
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wp_cache_flush();
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/* Verified working without.
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if ($this->has_supercache)
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$this->removeSuperCache();
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*/
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if ($this->has_w3tc)
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$this->removeW3tcCache();
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if ($this->has_wpengine)
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$this->removeWpeCache();
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if ($this->has_siteground)
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$this->removeSiteGround();
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if ($this->has_fastestcache)
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$this->removeFastestCache();
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if ($this->has_litespeed)
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$this->litespeedReset($imageItem);
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}
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protected function removeSuperCache()
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{
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global $file_prefix, $supercachedir;
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if ( empty( $supercachedir ) && function_exists( 'get_supercache_dir' ) ) {
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$supercachedir = get_supercache_dir();
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}
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wp_cache_clean_cache( $file_prefix );
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}
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protected function removeW3tcCache()
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{
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w3tc_pgcache_flush();
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}
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protected function removeWpeCache()
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{
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if ( method_exists( 'WpeCommon', 'purge_memcached' ) ) {
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\WpeCommon::purge_memcached();
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}
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if ( method_exists( 'WpeCommon', 'clear_maxcdn_cache' ) ) {
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\WpeCommon::clear_maxcdn_cache();
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}
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if ( method_exists( 'WpeCommon', 'purge_varnish_cache' ) ) {
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\WpeCommon::purge_varnish_cache();
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}
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}
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protected function removeFastestCache()
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{
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global $wp_fastest_cache;
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$wp_fastest_cache->deleteCache();
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}
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protected function removeSiteGround()
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{
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sg_cachepress_purge_cache();
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}
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protected function litespeedReset($imageItem)
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{
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// Suppress the notices on purge.
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if (! defined( 'LITESPEED_PURGE_SILENT' ))
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{
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define('LITESPEED_PURGE_SILENT', true);
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}
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$urls = $imageItem->getAllUrls();
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foreach($urls as $url)
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{
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do_action('litespeed_purge_url', $url, false, true);
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}
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// do_action('litespeed_media_reset', $post_id);
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}
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}
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cacheRemover::getInstance();
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