| Current File : /home/aventura/www/site/wp-content/plugins/w3-total-cache/PgCache_Flush.php |
<?php
namespace W3TC;
/**
* W3 PgCache flushing
*/
class PgCache_Flush extends PgCache_ContentGrabber {
/**
* Array of urls to flush
*
* @var array
*/
private $queued_urls = array();
private $queued_groups = array();
private $flush_all_operation_requested = false;
/**
* PHP5 Constructor
*/
function __construct() {
parent::__construct();
}
/**
* Flushes all caches
*
* @return boolean
*/
function flush() {
$this->flush_all_operation_requested = true;
return true;
}
function flush_group( $group ) {
$this->queued_groups[$group] = '*';
}
/**
* Flushes post cache
*
* @param integer $post_id
* @return boolean
*/
function flush_post( $post_id = null ) {
if ( !$post_id ) {
$post_id = Util_Environment::detect_post_id();
}
if ( !$post_id )
return false;
$full_urls = array();
$post = get_post( $post_id );
$terms = array();
$feeds = $this->_config->get_array( 'pgcache.purge.feed.types' );
$limit_post_pages = $this->_config->get_integer( 'pgcache.purge.postpages_limit' );
if ( $this->_config->get_string( 'pgcache.rest' ) == 'cache' ) {
$this->flush_group( 'rest' );
}
if ( $this->_config->get_boolean( 'pgcache.purge.terms' ) ||
$this->_config->get_boolean( 'pgcache.purge.feed.terms' ) ) {
$taxonomies = get_post_taxonomies( $post_id );
$terms = wp_get_post_terms( $post_id, $taxonomies );
$terms = $this->_append_parent_terms( $terms, $terms );
}
$front_page = get_option( 'show_on_front' );
/**
* Home (Frontpage) URL
*/
if ( ( $this->_config->get_boolean( 'pgcache.purge.home' ) &&
$front_page == 'posts' ) ||
$this->_config->get_boolean( 'pgcache.purge.front_page' ) ) {
$full_urls = array_merge( $full_urls,
Util_PageUrls::get_frontpage_urls( $limit_post_pages ) );
}
/**
* Home (Post page) URL
*/
if ( $this->_config->get_boolean( 'pgcache.purge.home' ) &&
$front_page != 'posts' ) {
$full_urls = array_merge( $full_urls,
Util_PageUrls::get_postpage_urls( $limit_post_pages ) );
}
/**
* Post URL
*/
if ( $this->_config->get_boolean( 'pgcache.purge.post' ) ) {
$full_urls = array_merge( $full_urls,
Util_PageUrls::get_post_urls( $post_id ) );
}
/**
* Post comments URLs
*/
if ( $this->_config->get_boolean( 'pgcache.purge.comments' ) &&
function_exists( 'get_comments_pagenum_link' ) ) {
$full_urls = array_merge( $full_urls,
Util_PageUrls::get_post_comments_urls( $post_id ) );
}
/**
* Post author URLs
*/
if ( $this->_config->get_boolean( 'pgcache.purge.author' ) && $post ) {
$full_urls = array_merge( $full_urls,
Util_PageUrls::get_post_author_urls( $post->post_author,
$limit_post_pages ) );
}
/**
* Post terms URLs
*/
if ( $this->_config->get_boolean( 'pgcache.purge.terms' ) ) {
$full_urls = array_merge( $full_urls,
Util_PageUrls::get_post_terms_urls( $terms, $limit_post_pages ) );
}
/**
* Daily archive URLs
*/
if ( $this->_config->get_boolean( 'pgcache.purge.archive.daily' ) && $post ) {
$full_urls = array_merge( $full_urls,
Util_PageUrls::get_daily_archive_urls( $post, $limit_post_pages ) );
}
/**
* Monthly archive URLs
*/
if ( $this->_config->get_boolean( 'pgcache.purge.archive.monthly' ) && $post ) {
$full_urls = array_merge( $full_urls,
Util_PageUrls::get_monthly_archive_urls( $post, $limit_post_pages ) );
}
/**
* Yearly archive URLs
*/
if ( $this->_config->get_boolean( 'pgcache.purge.archive.yearly' ) && $post ) {
$full_urls = array_merge( $full_urls,
Util_PageUrls::get_yearly_archive_urls( $post, $limit_post_pages ) );
}
/**
* Feed URLs
*/
if ( $this->_config->get_boolean( 'pgcache.purge.feed.blog' ) ) {
$full_urls = array_merge( $full_urls,
Util_PageUrls::get_feed_urls( $feeds, null ) );
}
if ( $this->_config->get_boolean( 'pgcache.purge.feed.comments' ) ) {
$full_urls = array_merge( $full_urls,
Util_PageUrls::get_feed_comments_urls( $post_id, $feeds ) );
}
if ( $this->_config->get_boolean( 'pgcache.purge.feed.author' ) ) {
$full_urls = array_merge( $full_urls,
Util_PageUrls::get_feed_author_urls( $post->post_author, $feeds ) );
}
if ( $this->_config->get_boolean( 'pgcache.purge.feed.terms' ) ) {
$full_urls = array_merge( $full_urls,
Util_PageUrls::get_feed_terms_urls( $terms, $feeds ) );
}
/**
* Purge selected pages
*/
if ( $this->_config->get_array( 'pgcache.purge.pages' ) ) {
$pages = $this->_config->get_array( 'pgcache.purge.pages' );
$full_urls = array_merge( $full_urls,
Util_PageUrls::get_pages_urls( $pages ) );
}
// add mirror urls
$full_urls = Util_PageUrls::complement_with_mirror_urls( $full_urls );
$full_urls = apply_filters( 'pgcache_flush_post_queued_urls',
$full_urls );
/**
* Queue flush
*/
if ( count( $full_urls ) ) {
foreach ( $full_urls as $url )
$this->queued_urls[$url] = '*';
}
return true;
}
/**
* Flush a single url
*
* @param unknown $url
* @param unknown $cache
* @param unknown $mobile_groups
* @param unknown $referrer_groups
* @param unknown $encryptions
* @param unknown $compressions
*/
function _flush_url( $url, $cache, $mobile_groups, $referrer_groups,
$encryptions, $compressions ) {
foreach ( $mobile_groups as $mobile_group ) {
foreach ( $referrer_groups as $referrer_group ) {
foreach ( $encryptions as $encryption ) {
foreach ( $compressions as $compression ) {
$page_keys = array();
$page_keys[] = $this->_get_page_key( array(
'useragent' => $mobile_group,
'referrer' => $referrer_group,
'encryption' => $encryption,
'compression' => $compression ),
$url );
$page_keys = apply_filters(
'w3tc_pagecache_flush_url_keys', $page_keys );
foreach ( $page_keys as $page_key )
$cache->delete( $page_key );
}
}
}
}
}
/**
* Flush a single url
*
* @param unknown $url
*/
function flush_url( $url ) {
static $cache, $mobile_groups, $referrer_groups, $encryptions;
static $compressions;
if ( !isset( $cache ) )
$cache = $this->_get_cache();
if ( !isset( $mobile_groups ) )
$mobile_groups = $this->_get_mobile_groups();
if ( !isset( $referrer_groups ) )
$referrer_groups = $this->_get_referrer_groups();
if ( !isset( $encryptions ) )
$encryptions = $this->_get_encryptions();
if ( !isset( $compressions ) )
$compressions = $this->_get_compressions();
$this->_flush_url( $url, $cache, $mobile_groups, $referrer_groups,
$encryptions, $compressions );
}
/**
* Flushes global and repeated urls
*
* @return count of elements it has flushed
*/
function flush_post_cleanup() {
if ( $this->flush_all_operation_requested ) {
if ( $this->_config->get_boolean( 'pgcache.debug' ) ) {
self::log( 'flush all' );
}
$cache = $this->_get_cache();
$cache->flush();
$count = 999;
$this->flush_all_operation_requested = false;
$this->queued_urls = array();
} else {
if ( count( $this->queued_groups ) > 0 ) {
$cache = $this->_get_cache();
foreach ( $this->queued_groups as $group => $flag ) {
if ( $this->_config->get_boolean( 'pgcache.debug' ) ) {
self::log( 'pgcache flush "' . $group . '" group' );
}
$cache->flush( $group );
}
}
$count = count( $this->queued_urls );
if ( $count > 0 ) {
if ( $this->_config->get_boolean( 'pgcache.debug' ) ) {
self::log( 'pgcache flush ' . $count . ' urls' );
}
$cache = $this->_get_cache();
$mobile_groups = $this->_get_mobile_groups();
$referrer_groups = $this->_get_referrer_groups();
$encryptions = $this->_get_encryptions();
$compressions = $this->_get_compressions();
foreach ( $this->queued_urls as $url => $flag ) {
$this->_flush_url( $url, $cache, $mobile_groups,
$referrer_groups, $encryptions, $compressions );
}
// Purge sitemaps if a sitemap option has a regex
if ( $this->_config->get_string( 'pgcache.purge.sitemap_regex' ) ) {
$cache = $this->_get_cache();
$cache->flush( 'sitemaps' );
}
$this->queued_urls = array();
}
}
return $count;
}
/**
* Returns array of mobile groups
*
* @return array
*/
function _get_mobile_groups() {
$mobile_groups = array( '' );
if ( $this->_mobile ) {
$mobile_groups = array_merge( $mobile_groups, array_keys(
$this->_mobile->get_groups() ) );
}
return $mobile_groups;
}
/**
* Returns array of referrer groups
*
* @return array
*/
function _get_referrer_groups() {
$referrer_groups = array( '' );
if ( $this->_referrer ) {
$referrer_groups = array_merge( $referrer_groups, array_keys(
$this->_referrer->get_groups() ) );
}
return $referrer_groups;
}
/**
* Returns array of encryptions
*
* @return array
*/
function _get_encryptions() {
$is_https = ( substr( get_home_url(), 0, 5 ) == 'https' );
$encryptions = array();
if ( ! $is_https || $this->_config->get_boolean( 'pgcache.cache.ssl' ) )
$encryptions[] = '';
if ( $is_https || $this->_config->get_boolean( 'pgcache.cache.ssl' ) )
$encryptions[] = 'ssl';
return $encryptions;
}
private function _append_parent_terms( $terms, $terms_to_check_parents ) {
$terms_to_check_parents = $terms;
$ids = null;
for ( ;; ) {
$parent_ids = array();
$taxonomies = array();
foreach ( $terms_to_check_parents as $term ) {
if ( $term->parent ) {
$parent_ids[$term->parent] = '*';
$taxonomies[$term->taxonomy] = '*';
}
}
if ( empty( $parent_ids ) )
return $terms;
if ( is_null( $ids ) ) {
// build a map of ids for faster check
$ids = array();
foreach ( $terms as $term )
$ids[$term->term_id] = '*';
} else {
// append last new items to ids map
foreach ( $terms_to_check_parents as $term )
$ids[$term->term_id] = '*';
}
// build list to extract
$include_ids = array();
foreach ( $parent_ids as $id => $v ) {
if ( !isset( $ids[$id] ) )
$include_ids[] = $id;
}
if ( empty( $include_ids ) )
return $terms;
$new_terms = get_terms( array_keys( $taxonomies ),
array( 'include' => $include_ids ) );
$terms = array_merge( $terms, $new_terms );
$terms_to_check_parents = $new_terms;
}
}
}