From 015af09e721dcbb0247a63feb5b9c2519279e3a5 Mon Sep 17 00:00:00 2001
From: Neil Gee <neil@wpbeaches.com>
Date: Mon, 3 Sep 2018 22:36:40 +1000
Subject: [PATCH] add cache busting class

---
 classes/class-fl-builder-cache-helper.php | 303 ++++++++++++++++++++++
 1 file changed, 303 insertions(+)
 create mode 100644 classes/class-fl-builder-cache-helper.php

diff --git a/classes/class-fl-builder-cache-helper.php b/classes/class-fl-builder-cache-helper.php
new file mode 100644
index 0000000..e5a53fa
--- /dev/null
+++ b/classes/class-fl-builder-cache-helper.php
@@ -0,0 +1,303 @@
+<?php
+namespace FLCache;
+/**
+ * Helper class for clearing those caches.
+ *
+ * @since 2.1.5
+ */
+class CacheHelper {
+
+	function define( $define, $setting = true ) {
+		if ( ! defined( $define ) ) {
+			define( $define, $setting );
+		}
+	}
+}
+
+/**
+ * Swift performance plugin
+ */
+class Swift extends CacheHelper {
+
+	function __construct() {
+		add_action( 'fl_builder_cache_cleared',            array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_layout',        array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_user_template', array( $this, 'clear_cache' ) );
+		add_action( 'upgrader_process_complete',           array( $this, 'clear_cache' ) );
+	}
+
+	function clear_cache() {
+		if ( class_exists( '\Swift_Performance_Cache' ) ) {
+			\Swift_Performance_Cache::clear_all_cache();
+		}
+	}
+}
+new Swift;
+
+/**
+ * Breeze plugin
+ */
+class Breeze extends CacheHelper {
+
+	function __construct() {
+		add_action( 'fl_builder_cache_cleared',            array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_layout',        array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_user_template', array( $this, 'clear_cache' ) );
+		add_action( 'upgrader_process_complete',           array( $this, 'clear_cache' ) );
+	}
+
+	function clear_cache() {
+		if ( class_exists( '\Breeze_PurgeCache' ) ) {
+			\Breeze_PurgeCache::breeze_cache_flush();
+		}
+	}
+}
+new Breeze;
+
+/**
+ * Varnish
+ */
+class Varnish extends CacheHelper {
+
+	function __construct() {
+		add_action( 'fl_builder_cache_cleared',            array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_layout',        array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_user_template', array( $this, 'clear_cache' ) );
+		add_action( 'upgrader_process_complete',           array( $this, 'clear_cache' ) );
+	}
+
+	function clear_cache() {
+		if ( defined( 'FL_CACHE_HELPER_VARNISH' ) ) {
+			// @codingStandardsIgnoreLine
+			@wp_remote_request( get_site_url(), array(
+				'method' => 'BAN',
+			) );
+		}
+	}
+}
+new Varnish;
+
+/**
+ * Comet Cache Plugin
+ */
+class Comet extends CacheHelper {
+
+	function __construct() {
+		add_action( 'fl_builder_cache_cleared',            array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_layout',        array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_user_template', array( $this, 'clear_cache' ) );
+		add_action( 'upgrader_process_complete',           array( $this, 'clear_cache' ) );
+	}
+
+	function clear_cache() {
+		if ( class_exists( '\comet_cache' ) ) {
+			\comet_cache::clear();
+		}
+	}
+}
+new Comet;
+
+/**
+ * WP Fastest Cache Plugin
+ */
+class Fastest extends CacheHelper {
+
+	function __construct() {
+		add_action( 'fl_builder_cache_cleared',            array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_layout',        array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_user_template', array( $this, 'clear_cache' ) );
+		add_action( 'upgrader_process_complete',           array( $this, 'clear_cache' ) );
+	}
+
+	function clear_cache() {
+		if ( class_exists( '\WpFastestCache' ) ) {
+			global $wp_fastest_cache;
+			$wp_fastest_cache->deleteCache( true );
+		}
+	}
+}
+new Fastest;
+
+/**
+ * Pagely
+ */
+class Pagely extends CacheHelper {
+
+	function __construct() {
+		add_action( 'fl_builder_cache_cleared',            array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_layout',        array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_user_template', array( $this, 'clear_cache' ) );
+		add_action( 'upgrader_process_complete',           array( $this, 'clear_cache' ) );
+	}
+
+	function clear_cache() {
+		if ( class_exists( '\PagelyCachePurge' ) ) {
+			\PagelyCachePurge::purgeAll();
+		}
+	}
+}
+new Pagely;
+
+/**
+ * Cache Enabler Plugin
+ */
+class CacheEnabler extends CacheHelper {
+
+	function __construct() {
+		add_action( 'fl_builder_cache_cleared',            array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_layout',        array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_user_template', array( $this, 'clear_cache' ) );
+		add_action( 'upgrader_process_complete',           array( $this, 'clear_cache' ) );
+	}
+
+	function clear_cache() {
+		if ( class_exists( '\Cache_Enabler' ) ) {
+			\Cache_Enabler::clear_total_cache();
+		}
+	}
+}
+new CacheEnabler;
+
+/**
+ * LiteSpeed Plugin
+ */
+class LiteSpeed extends CacheHelper {
+
+	function __construct() {
+		add_action( 'fl_builder_cache_cleared',            array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_layout',        array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_user_template', array( $this, 'clear_cache' ) );
+		add_action( 'upgrader_process_complete',           array( $this, 'clear_cache' ) );
+	}
+
+	function clear_cache() {
+		if ( class_exists( '\LiteSpeed_Cache_API' ) ) {
+			\LiteSpeed_Cache_API::purge_all();
+		}
+	}
+}
+new LiteSpeed;
+
+/**
+ * Siteground autoptimizer
+ */
+class SiteGround extends CacheHelper {
+
+	function __construct() {
+		add_action( 'fl_builder_cache_cleared',            array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_layout',        array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_user_template', array( $this, 'clear_cache' ) );
+		add_action( 'upgrader_process_complete',           array( $this, 'clear_cache' ) );
+	}
+
+	function clear_cache() {
+		if ( function_exists( 'sg_cachepress_purge_cache' ) ) {
+			sg_cachepress_purge_cache();
+		}
+	}
+}
+new SiteGround;
+
+
+/**
+ * W3 Total Cache
+ */
+class W3TC extends CacheHelper {
+
+	function __construct() {
+		add_action( 'fl_builder_cache_cleared',            array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_layout',        array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_user_template', array( $this, 'clear_cache' ) );
+		add_action( 'upgrader_process_complete',           array( $this, 'clear_cache' ) );
+	}
+
+	function clear_cache() {
+		if ( function_exists( 'w3tc_pgcache_flush' ) ) {
+			w3tc_pgcache_flush();
+		}
+	}
+}
+new W3TC;
+
+/**
+ * WPEngine
+ */
+class WPE extends CacheHelper {
+
+	function __construct() {
+		add_action( 'fl_builder_cache_cleared',            array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_layout',        array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_user_template', array( $this, 'clear_cache' ) );
+		add_action( 'upgrader_process_complete',           array( $this, 'clear_cache' ) );
+	}
+
+	function clear_cache() {
+		if ( class_exists( '\WpeCommon' ) ) {
+			\WpeCommon::purge_memcached();
+			\WpeCommon::clear_maxcdn_cache();
+			\WpeCommon::purge_varnish_cache();
+		}
+	}
+}
+new WPE;
+
+/**
+ * wp-super-cache
+ */
+class SuperCache extends CacheHelper {
+
+	function __construct() {
+		add_action( 'fl_builder_cache_cleared',            array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_layout',        array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_user_template', array( $this, 'clear_cache' ) );
+		add_action( 'upgrader_process_complete',           array( $this, 'clear_cache' ) );
+	}
+
+	function clear_cache() {
+		if ( function_exists( 'wp_cache_clear_cache' ) ) {
+			wp_cache_clear_cache();
+		}
+	}
+}
+new SuperCache;
+
+/**
+ * Autooptimixze plugin.
+ */
+class AutoOptimize extends CacheHelper {
+
+	function __construct() {
+		add_action( 'fl_builder_init_ui',                  array( $this, 'filters' ) );
+		add_action( 'fl_builder_cache_cleared',            array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_layout',        array( $this, 'clear_cache' ) );
+		add_action( 'fl_builder_after_save_user_template', array( $this, 'clear_cache' ) );
+		add_action( 'upgrader_process_complete',           array( $this, 'clear_cache' ) );
+	}
+
+	function clear_cache() {
+		if ( class_exists( '\autoptimizeCache' ) ) {
+			\autoptimizeCache::clearall();
+		}
+	}
+
+	function filters() {
+		add_filter( 'autoptimize_filter_noptimize', '__return_true' );
+	}
+}
+new AutoOptimize;
+
+/**
+ * Defines for various cache plugins that respect them.
+ */
+class Defines extends CacheHelper {
+	function __construct() {
+		add_action( 'fl_builder_init_ui', array( $this, 'defines' ) );
+	}
+
+	function defines() {
+		$this->define( 'DONOTMINIFY' );
+		$this->define( 'DONOTCACHEPAGE' );
+	}
+
+}
+new Defines;