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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>PoweredCache Hooks: Source: classes/AdvancedCache.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/AdvancedCache.php</h1>
<section>
<article>
<pre class="prettyprint source linenums"><code><?php
/**
* Admin
*
* @package PoweredCache
*/
namespace PoweredCache;
use PoweredCache\Async\CachePurger;
use const PoweredCache\Constants\POST_META_DISABLE_CACHE_KEY;
use function PoweredCache\Utils\clean_page_cache_dir;
use function PoweredCache\Utils\clean_site_cache_dir;
use function PoweredCache\Utils\delete_page_cache;
use function PoweredCache\Utils\get_post_related_urls;
use const PoweredCache\Constants\PURGE_CACHE_PLUGIN_NOTICE_TRANSIENT;
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly.
}
/**
* Class Admin
*
* @package PoweredCache
*/
class AdvancedCache {
/**
* Holds plugin settings
*
* @var array $settings
*/
private $settings;
/**
* Instance of CachePreloader
*
* @var CachePurger
*/
private $cache_purger;
/**
* Return an instance of the current class
*
* @return AdvancedCache
* @since 1.0
*/
public static function factory() {
static $instance;
if ( ! $instance ) {
$instance = new self();
$instance->setup();
}
return $instance;
}
/**
* Setup hooks
*
* @since 1.0
*/
public function setup() {
$this->settings = \PoweredCache\Utils\get_settings();
if ( ! $this->settings['enable_page_cache'] ) {
return;
}
$this->cache_purger = CachePurger::factory();
add_action( 'admin_bar_menu', array( $this, 'admin_bar_menu' ) );
add_action( 'admin_post_powered_cache_purge_page_cache', array( $this, 'purge_page_cache' ) );
add_action( 'admin_post_powered_cache_purge_page_cache_network', array( $this, 'purge_page_cache_network_wide' ) );
add_action( 'transition_post_status', array( $this, 'purge_on_post_update' ), 9999, 3 );
add_action( 'switch_theme', array( $this, 'purge_on_switch_theme' ) );
add_action( 'wp_set_comment_status', array( $this, 'purge_post_on_comment_update' ) );
add_action( 'edit_comment', array( $this, 'purge_post_on_comment_update' ) );
add_action( 'set_comment_cookies', array( $this, 'set_comment_cookie' ), 10, 2 );
add_filter( 'powered_cache_post_related_urls', array( $this, 'powered_cache_post_related_urls' ) );
add_filter( 'powered_cache_page_cache_enable', array( $this, 'maybe_caching_disabled' ) );
add_filter( 'powered_cache_mod_rewrite', array( $this, 'maybe_disable_mod_rewrite' ), 99 );
add_action( 'wp_update_site', array( $this, 'purge_on_site_update' ), 10, 2 );
add_action( 'create_term', array( $this, 'purge_on_term_change' ), 10, 3 );
add_action( 'edit_term', array( $this, 'purge_on_term_change' ), 10, 3 );
add_action( 'delete_term', array( $this, 'purge_on_term_change' ), 10, 3 );
}
/**
* Add purge button on admin bar
*
* @param object $wp_admin_bar Admin bar object
*
* @since 1.0
*/
public function admin_bar_menu( $wp_admin_bar ) {
if ( POWERED_CACHE_IS_NETWORK && current_user_can( 'manage_network' ) ) {
$wp_admin_bar->add_menu(
array(
'id' => 'advanced-cache-purge-network',
'title' => __( 'Purge Page Cache [Network Wide - All Sites]', 'powered-cache' ),
'href' => wp_nonce_url( admin_url( 'admin-post.php?action=powered_cache_purge_page_cache_network' ), 'powered_cache_purge_page_cache_network' ),
'parent' => 'powered-cache',
)
);
}
if ( current_user_can( 'manage_options' ) ) {
$wp_admin_bar->add_menu(
array(
'id' => 'advanced-cache-purge',
'title' => __( 'Purge Page Cache', 'powered-cache' ),
'href' => wp_nonce_url( admin_url( 'admin-post.php?action=powered_cache_purge_page_cache' ), 'powered_cache_purge_page_cache' ),
'parent' => 'powered-cache',
)
);
if ( is_singular() && ! is_preview() && is_post_publicly_viewable( get_the_ID() ) ) {
$wp_admin_bar->add_menu(
array(
'id' => 'advanced-cache-current-page-purge',
'title' => esc_html__( 'Purge Current Page', 'powered-cache' ),
'href' => wp_nonce_url( admin_url( sprintf( 'admin-post.php?action=powered_cache_purge_page_cache&type=current-page&post=%d', get_the_ID() ) ), 'powered_cache_purge_page_cache' ),
'parent' => 'powered-cache',
)
);
}
}
}
/**
* Purge page cache network wide
*
* @since 2.0
*/
public function purge_page_cache_network_wide() {
if ( ! wp_verify_nonce( $_GET['_wpnonce'], 'powered_cache_purge_page_cache_network' ) ) { // phpcs:ignore
wp_nonce_ays( '' );
}
if ( current_user_can( 'manage_network' ) ) {
if ( $this->settings['async_cache_cleaning'] ) {
$this->cache_purger->push_to_queue( [ 'call' => 'clean_page_cache_dir' ] );
$this->cache_purger->save()->dispatch();
} else {
clean_page_cache_dir();
}
$redirect_url = add_query_arg( 'pc_action', 'flush_page_cache_network', wp_get_referer() );
} else {
$redirect_url = add_query_arg( 'pc_action', 'flush_page_cache_network_err_permission', wp_get_referer() );
}
delete_site_transient( PURGE_CACHE_PLUGIN_NOTICE_TRANSIENT );
wp_safe_redirect( esc_url_raw( $redirect_url ) );
exit;
}
/**
* Purge page cache directory
*
* @since 1.0
* @since 1.1 clean site dir instead of root page caching dir
*/
public function purge_page_cache() {
if ( ! wp_verify_nonce( sanitize_text_field( wp_unslash( $_GET['_wpnonce'] ) ), 'powered_cache_purge_page_cache' ) ) { // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotValidated
wp_nonce_ays( '' );
}
if ( current_user_can( 'manage_options' ) ) {
if ( isset( $_GET['type'] ) && 'current-page' === $_GET['type'] && ! empty( $_GET['post'] ) ) {
$this->purge_post( absint( $_GET['post'] ) );
} elseif ( $this->settings['async_cache_cleaning'] ) {
$this->cache_purger->push_to_queue( [ 'call' => 'clean_site_cache_dir' ] );
$this->cache_purger->save()->dispatch();
} else {
clean_site_cache_dir();
}
$redirect_url = add_query_arg( 'pc_action', 'flush_page_cache', wp_get_referer() );
} else {
$redirect_url = add_query_arg( 'pc_action', 'flush_page_cache_err_permission', wp_get_referer() );
}
delete_transient( PURGE_CACHE_PLUGIN_NOTICE_TRANSIENT );
wp_safe_redirect( esc_url_raw( $redirect_url ) );
exit;
}
/**
* Purge cache when post updated
*
* @param string $new_status New Post status.
* @param string $old_status Old Post status.
* @param \WP_Post $post Post object.
*
* @return void
* @since 3.4 adjusted for `transition_post_status` hook
* @since 1.0
*/
public function purge_on_post_update( $new_status, $old_status, $post ) {
if ( 'publish' === $new_status || 'publish' === $old_status ) {
$this->purge_post( $post->ID );
}
}
/**
* Purge post related page cache
*
* @param int $post_id Post ID
*
* @since 3.4
*/
public function purge_post( $post_id ) {
$current_post = get_post( $post_id );
if ( ! is_a( $current_post, 'WP_Post' ) ) {
return;
}
if ( wp_is_post_autosave( $post_id ) || wp_is_post_revision( $post_id ) ) {
return;
}
if ( ! is_post_type_viewable( $current_post->post_type ) ) {
return;
}
if ( ! in_array( $current_post->post_status, array( 'publish', 'private', 'trash', 'pending', 'draft' ), true ) ) {
return;
}
$urls = get_post_related_urls( $post_id );
/**
* Page cache purge urls.
*
* @hook powered_cache_advanced_cache_purge_urls
*
* @param {array} $urls The list of URLs that will purged
* @param {int} $post_id Post ID.
*
* @return {array} New value
* @since 1.0
*/
$urls = apply_filters( 'powered_cache_advanced_cache_purge_urls', $urls, $post_id );
$deleted_urls = [];
if ( $this->settings['async_cache_cleaning'] ) {
$this->cache_purger->push_to_queue(
[
'call' => 'delete_page_cache',
'urls' => $urls,
]
);
$deleted_urls = $urls;
$this->cache_purger->save()->dispatch();
} else {
foreach ( $urls as $url ) {
if ( delete_page_cache( $url ) ) {
$deleted_urls[] = $url;
}
}
}
/**
* Fires after purging cache on post update.
*
* @hook powered_cache_advanced_cache_purge_post
*
* @param {int} $post_id The Post ID.
* @param {array} $deleted_urls The list of purged urls with the updated post.
* @param {array} $urls The list of urls that will be purged. @since 3.6
*
* @since 1.0
*/
do_action( 'powered_cache_advanced_cache_purge_post', $post_id, $deleted_urls, $urls );
}
/**
* Purge post cache when comment status change
*
* @param int $comment_id Comment ID
* @param string $comment_status Comment status
*
* @return void
* @deprecated since 3.4.4
*/
public function purge_post_on_comment_status_change( $comment_id, $comment_status ) {
// deprecate this method in favor of `purge_post_on_comment_update`
_deprecated_function( __METHOD__, '3.4.4', 'purge_post_on_comment_update' );
$this->purge_post_on_comment_update( $comment_id );
$comment = get_comment( $comment_id );
$post_id = $comment->comment_post_ID;
$post_url = get_permalink( $post_id );
do_action( 'powered_cache_advanced_cache_purge_on_comment_update', $post_id, $post_url, $comment_id );
}
/**
* Delete page cache when a comment update
*
* @param int $comment_id Comment ID
*
* @since 3.4.4
*/
public function purge_post_on_comment_update( $comment_id ) {
$comment = get_comment( $comment_id );
$post_id = $comment->comment_post_ID;
$post_url = get_permalink( $post_id );
delete_page_cache( $post_url, true );
/**
* Fires after purging cache for a post that associated a comment
*
* @hook powered_cache_advanced_cache_purge_on_comment_update
*
* @param {int} $post_id Post ID.
* @param {string} $post_url Post permalink.
* @param {int} $comment_id Comment ID.
*
* @since 3.4.4
*/
do_action( 'powered_cache_advanced_cache_purge_on_comment_update', $post_id, $post_url, $comment_id );
}
/**
* Purge site when switching to a new theme
*
* @since 2.0
*/
public function purge_on_switch_theme() {
if ( $this->settings['async_cache_cleaning'] ) {
$this->cache_purger->push_to_queue( [ 'call' => 'clean_site_cache_dir' ] );
$this->cache_purger->save()->dispatch();
} else {
clean_site_cache_dir();
}
}
/**
* Purge site cache when site updated (eg: archived, deleted etc...)
*
* @param \WP_Site $new_site New site object.
* @param \WP_Site $old_site Old site object.
*
* @return void
* @since 2.5.3
*/
public function purge_on_site_update( $new_site, $old_site ) {
switch_to_blog( $old_site->id );
if ( $this->settings['async_cache_cleaning'] ) {
$this->cache_purger->push_to_queue( [ 'call' => 'clean_site_cache_dir' ] );
$this->cache_purger->save()->dispatch();
} else {
clean_site_cache_dir();
}
restore_current_blog();
}
/**
* Leave a cookie when commenting on a post as usual and don't show the cached page.
* `comment_author_*` cookies are site-wide available.
* Don't show cached results just for left a comment 5 months ago is not seems efficient here.
*
* @param object $comment Comment object
* @param object $user User Object
*
* @since 1.0
*/
public function set_comment_cookie( $comment, $user ) {
$post_id = $comment->comment_post_ID;
$path = wp_parse_url( get_permalink( $post_id ), PHP_URL_PATH );
setcookie( 'powered_cache_commented_posts[' . $post_id . ']', $path, ( time() + DAY_IN_SECONDS * 30 ), $path );
}
/**
* Adds custom pages to post related urls
*
* @param array $urls The list of the urls
*
* @return array urls
* @since 1.1
*/
public function powered_cache_post_related_urls( $urls ) {
$settings = \PoweredCache\Utils\get_settings();
$additional_pages = $settings['purge_additional_pages'];
if ( empty( $additional_pages ) ) {
return $urls;
}
// we only need relative path
$additional_pages = str_replace( site_url(), '', $additional_pages );
$additional_page_paths = explode( PHP_EOL, $additional_pages );
$additional_urls = array();
foreach ( $additional_page_paths as $page ) {
$additional_urls[] = site_url( $page );
}
$urls = array_merge( $urls, $additional_urls );
return $urls;
}
/**
* Get the list of rejected cookies
*
* @return mixed|void
* @since 2.0
*/
public static function get_rejected_cookies() {
$settings = \PoweredCache\Utils\get_settings();
$cookies = [];
if ( ! empty( $settings['rejected_cookies'] ) ) {
$cookies = preg_split( '#(\r\n|\r|\n)#', $settings['rejected_cookies'], - 1, PREG_SPLIT_NO_EMPTY );
}
$wp_cookies = [
'wp-postpass',
'wordpressuser_',
'wordpresspass_',
'wordpress_sec_',
'wordpress_logged_in_',
'powered_cache_commented_posts',
'comment_author_',
'comment_author_email_',
'comment_author_url_',
];
if ( ! empty( $cookies ) ) {
$wp_cookies = array_merge( $cookies, $wp_cookies );
}
/**
* Filter rejected cookie list.
*
* @hook powered_cache_rejected_cookies
*
* @param {array} $wp_cookies The rejected cookie list from the caching.
*
* @return {array} Rejected cookie list
* @since 2.0
*/
return apply_filters( 'powered_cache_rejected_cookies', $wp_cookies );
}
/**
* Get the list of rejected cookies
*
* @return mixed|void
* @since 2.0
*/
public static function get_vary_cookies() {
$settings = \PoweredCache\Utils\get_settings();
$cookies = [];
if ( ! empty( $settings['vary_cookies'] ) ) {
$cookies = preg_split( '#(\r\n|\r|\n)#', $settings['vary_cookies'], - 1, PREG_SPLIT_NO_EMPTY );
}
/**
* Filter vary cookie list.
*
* @hook powered_cache_vary_cookies
*
* @param {array} $cookies The varied cookie list, which allows to create separate cache based on the match.
*
* @return {array} Vary cookie list
* @since 2.0
*/
return apply_filters( 'powered_cache_vary_cookies', $cookies );
}
/**
* Get the list of rejected referrers
*
* @return mixed|null
* @since 3.6
*/
public static function get_rejected_referrers() {
$settings = \PoweredCache\Utils\get_settings();
$rejected_referrers = [];
if ( ! empty( $settings['rejected_referrers'] ) ) {
$rejected_referrers = preg_split( '#(\r\n|\r|\n)#', $settings['rejected_referrers'], - 1, PREG_SPLIT_NO_EMPTY );
}
/**
* Filter rejected referrer list.
*
* @hook powered_cache_rejected_referrers
*
* @param {array} $rejected_referrers The referrer that will not see the cached page.
*
* @return {array} Rejected referrer list.
* @since 3.6
*/
return apply_filters( 'powered_cache_rejected_referrers', $rejected_referrers );
}
/**
* Get the list of rejected user agents
*
* @return mixed|void
* @since 2.0
*/
public static function get_rejected_user_agents() {
$settings = \PoweredCache\Utils\get_settings();
$rejected_user_agents = [];
if ( ! empty( $settings['rejected_user_agents'] ) ) {
$rejected_user_agents = preg_split( '#(\r\n|\r|\n)#', $settings['rejected_user_agents'], - 1, PREG_SPLIT_NO_EMPTY );
}
$rejected_user_agents[] = 'facebookexternalhit';
/**
* Filter rejected user agent list.
*
* @hook powered_cache_rejected_user_agents
*
* @param {array} $rejected_user_agents The user agents that will not see the cached page.
*
* @return {array} Rejected user agent list.
* @since 2.0
*/
return apply_filters( 'powered_cache_rejected_user_agents', $rejected_user_agents );
}
/**
* Get the list of rejected uri that never get cached
*
* @return mixed|void
* @since 2.0
*/
public static function get_rejected_uri() {
$settings = \PoweredCache\Utils\get_settings();
$rejected_uri_list = [];
if ( ! empty( $settings['rejected_uri'] ) ) {
$rejected_uri_list = preg_split( '#(\r\n|\r|\n)#', $settings['rejected_uri'], - 1, PREG_SPLIT_NO_EMPTY );
}
/**
* Filter rejected uri list
*
* @hook powered_cache_rejected_uri_list
*
* @param {array} $rejected_uri_list The list of rejected uri that never get cached.
*
* @return {array} New value
* @since 2.0
*/
return apply_filters( 'powered_cache_rejected_uri_list', $rejected_uri_list );
}
/**
* Get the allowed cache query parameters
*
* @return mixed|null
* @since 3.0
*/
public static function get_cache_query_string() {
$settings = \PoweredCache\Utils\get_settings();
$cache_query_strings = [];
if ( ! empty( $settings['cache_query_strings'] ) ) {
$cache_query_strings = preg_split( '#(\r\n|\r|\n)#', $settings['cache_query_strings'], - 1, PREG_SPLIT_NO_EMPTY );
}
$query_strings = [
'lang',
];
if ( ! empty( $cache_query_strings ) ) {
$cache_query_strings = array_merge( $query_strings, $cache_query_strings );
}
/**
* Filter accepted query strings.
*
* @hook powered_cache_cache_query_strings
*
* @param {array} $query_strings The list of query strings that will be cached based on their value
*
* @return {array} New value
* @since 3.0
*/
return apply_filters( 'powered_cache_cache_query_strings', $cache_query_strings );
}
/**
* These query strings will be ignored during the caching
*
* @return array
* @since 3.0 deprecated
* @deprecated Use `self::get_ignored_query_strings` instead
*/
public static function get_accepted_query_strings() {
_deprecated_function( '\PoweredCache\AdvancedCache::get_accepted_query_strings', '3.0', '\PoweredCache\AdvancedCache::get_ignored_query_strings' );
return self::get_ignored_query_strings();
}
/**
* These query strings will be ignored during the caching
*
* @return mixed|void
* @since 3.0
*/
public static function get_ignored_query_strings() {
$settings = \PoweredCache\Utils\get_settings();
$ignored_query_strings = [];
if ( ! empty( $settings['ignored_query_strings'] ) ) {
$ignored_query_strings = preg_split( '#(\r\n|\r|\n)#', $settings['ignored_query_strings'], - 1, PREG_SPLIT_NO_EMPTY );
}
$query_strings = [
'fbclid',
'fb_action_ids',
'fb_action_types',
'ref',
'gclid',
'fb_source',
'utm_source',
'utm_medium',
'utm_campaign',
'utm_term',
'utm_content',
'utm_expid',
'_ga',
'mc_cid',
'mc_eid',
'campaignid',
'adgroupid',
'adid',
'age-verified',
'usqp',
'cn-reloaded',
'ao_noptimize',
];
if ( ! empty( $ignored_query_strings ) ) {
$query_strings = array_merge( $query_strings, $ignored_query_strings );
}
/**
* Filters ignored query strings.
*
* @hook powered_cache_accepted_query_strings
*
* @param {array} $query_strings The list of query strings will be ignored during the caching
*
* @return {array} New value
* @since 2.0
* @depreacated since 3.0
*/
$query_strings = apply_filters( 'powered_cache_accepted_query_strings', $query_strings );
/**
* Filters ignored query strings.
*
* @hook powered_cache_ignored_query_strings
*
* @param {array} $query_strings The list of query strings will be ignored during the caching
*
* @return {array} New value
* @since 3.0
*/
$query_strings = apply_filters( 'powered_cache_ignored_query_strings', $query_strings );
return $query_strings;
}
/**
* Disable caching of the individual page when it marked as dont' cache
*
* @param bool $status Cache status
*
* @return bool
*/
public function maybe_caching_disabled( $status ) {
if ( is_single() ) {
$is_cache_disabled = (bool) get_post_meta( get_the_ID(), POST_META_DISABLE_CACHE_KEY, true );
if ( $is_cache_disabled ) {
return false;
}
}
return $status;
}
/**
* Maybe disable rewrite rules based on the settings
*
* @param bool $rewrite_status mod rewrite status
*
* @return bool
* @since 2.0
*/
public function maybe_disable_mod_rewrite( $rewrite_status ) {
$vary_cookies = self::get_vary_cookies();
if ( ! empty( $vary_cookies ) ) {
$rewrite_status = false;
}
return $rewrite_status;
}
/**
* Purge cache when term change
*
* @param int $term_id Term ID
* @param int $tt_id Term Taxonomy ID
* @param string $taxonomy Taxonomy
*
* @since 3.4.2
*/
public function purge_on_term_change( $term_id, $tt_id, $taxonomy ) {
$term_taxonomy = get_taxonomy( $taxonomy );
if ( ! $term_taxonomy->public ) {
return;
}
$term_url = get_term_link( $term_id, $taxonomy );
if ( ! is_wp_error( $term_url ) ) {
if ( $this->settings['async_cache_cleaning'] ) {
$this->cache_purger->push_to_queue(
[
'call' => 'delete_page_cache',
'urls' => $term_url,
]
);
$this->cache_purger->save()->dispatch();
} else {
delete_page_cache( $term_url );
}
}
}
}
</code></pre>
</article>
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