Viewing file:  PgCacheFlush.php (10.27 KB) -rw-rw-rw-
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<?php
/**
* W3 PgCache flushing
*/
w3_require_once(W3TC_LIB_W3_DIR . '/PgCache.php');
/**
* Class W3_PgCacheFlush
*/
class W3_PgCacheFlush extends W3_PgCache {
/**
* Array of already flushed urls
* @var array
*/
private $_flushed_urls = array();
/**
* Array of urls that is known will be flushed more than once
* @var array
*/
private $_repeated_urls = array();
/**
* Number of flushes thats been run on request
* @var int
*/
private $_flushes = 0;
/**
* PHP5 Constructor
*/
function __construct() {
parent::__construct();
}
/**
* Flushes all caches
*
* @return boolean
*/
function flush() {
$cache = $this->_get_cache();
return $cache->flush();
}
/**
* Flushes post cache
*
* @param integer $post_id
* @return boolean
*/
function flush_post($post_id = null) {
if (!$post_id) {
$post_id = w3_detect_post_id();
}
if ($post_id) {
$full_urls = array();
$global_urls = array();
$post = null;
$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_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);
}
/**
* @var $purge_urls W3_SharedPageUrls
*/
$purge_urls = w3_instance('W3_SharedPageUrls');
$post = get_post($post_id);
$post_type = in_array($post->post_type, array('post', 'page', 'attachment', 'revision')) ? null : $post->post_type;
$front_page = get_option('show_on_front');
/**
* Home (Frontpage) URL
*/
if (($this->_config->get_boolean('pgcache.purge.home') && $front_page == 'posts')||
$this->_config->get_boolean('pgcache.purge.front_page')) {
$global_urls = array_merge($global_urls, $purge_urls->get_frontpage_urls($limit_post_pages));
}
/**
* Home (Post page) URL
*/
if($this->_config->get_boolean('pgcache.purge.home') && $front_page != 'posts') {
$global_urls = array_merge($global_urls, $purge_urls->get_postpage_urls($limit_post_pages));
}
/**
* Post URL
*/
if ($this->_config->get_boolean('pgcache.purge.post')) {
$full_urls = array_merge($full_urls, $purge_urls->get_post_urls($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, $purge_urls->get_post_comments_urls($post_id));
}
/**
* Post author URLs
*/
if ($this->_config->get_boolean('pgcache.purge.author')) {
$full_urls = array_merge($full_urls, $purge_urls->get_post_author_urls($post->post_author, $limit_post_pages));
}
/**
* Post terms URLs
*/
if ($this->_config->get_boolean('pgcache.purge.terms')) {
$full_urls = array_merge($full_urls, $purge_urls->get_post_terms_urls($terms, $limit_post_pages));
}
/**
* Daily archive URLs
*/
if ($this->_config->get_boolean('pgcache.purge.archive.daily') && $post) {
$full_urls = array_merge($full_urls, $purge_urls->get_daily_archive_urls($post, $limit_post_pages));
}
/**
* Monthly archive URLs
*/
if ($this->_config->get_boolean('pgcache.purge.archive.monthly') && $post) {
$full_urls = array_merge($full_urls, $purge_urls->get_monthly_archive_urls($post, $limit_post_pages));
}
/**
* Yearly archive URLs
*/
if ($this->_config->get_boolean('pgcache.purge.archive.yearly') && $post) {
$full_urls = array_merge($full_urls, $purge_urls->get_yearly_archive_urls($post, $limit_post_pages));
}
/**
* Feed URLs
*/
if ($this->_config->get_boolean('pgcache.purge.feed.blog')) {
$global_urls = array_merge($global_urls, $purge_urls->get_feed_urls($feeds, $post_type));
}
if ($this->_config->get_boolean('pgcache.purge.feed.comments')) {
$full_urls = array_merge($full_urls, $purge_urls->get_feed_comments_urls($post_id, $feeds));
}
if ($this->_config->get_boolean('pgcache.purge.feed.author')) {
$full_urls = array_merge($full_urls, $purge_urls->get_feed_author_urls($post->post_author, $feeds));
}
if ($this->_config->get_boolean('pgcache.purge.feed.terms')) {
$full_urls = array_merge($full_urls, $purge_urls->get_feed_terms_urls($terms, $feeds));
}
/**
* Purge selected pages
*/
if ($this->_config->get_array('pgcache.purge.pages')) {
$pages = $this->_config->get_array('pgcache.purge.pages');
$global_urls = array_merge($global_urls, $purge_urls->get_pages_urls($pages));
}
/**
* Purge sitemaps if a sitemap option has a regex
*/
if($this->_config->get_string('pgcache.purge.sitemap_regex')) {
$cache = $this->_get_cache();
$cache->flush('sitemaps');
}
if ($this->_do_flush_global_urls()) {
$full_urls = array_merge($global_urls, $full_urls);
} elseif ($this->_flushes == 0) {
$this->_repeated_urls = $global_urls;
}
/**
* Flush cache
*/
if (count($full_urls)) {
$this->_flushes++;
$cache = $this->_get_cache();
$mobile_groups = $this->_get_mobile_groups();
$referrer_groups = $this->_get_referrer_groups();
$encryptions = $this->_get_encryptions();
$compressions = $this->_get_compressions();
foreach ($full_urls as $url) {
if (!in_array($url, $this->_repeated_urls) && !in_array($url, $this->_flushed_urls)) {
$this->_flushed_urls[] = $url;
$this->flush_url($url, $cache, $mobile_groups, $referrer_groups, $encryptions, $compressions);
} elseif (!in_array($url, $this->_repeated_urls)) {
$this->_repeated_urls[] = $url;
}
}
}
return true;
}
return false;
}
/**
* Flush a single url
* @param $url
* @param $cache
* @param $mobile_groups
* @param $referrer_groups
* @param $encryptions
* @param $compressions
*/
function _flush_url($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_key = $this->_get_page_key($mobile_group, $referrer_group, $encryption, $compression, false, $url);
$cache->delete($page_key);
}
}
}
}
}
/**
* Flush a single url
* @param $url
*/
function flush_url($url) {
static $cache, $mobile_groups, $referrer_groups, $encryptions, $compressions;
if (!isset($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, $compressions);
}
/**
* Flushes global and repeated urls
*/
function flush_post_cleanup() {
if ($this->_repeated_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->_repeated_urls as $url) {
$this->_flush_url($url, $cache, $mobile_groups, $referrer_groups, $encryptions, $compressions);
}
}
}
/**
* 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() {
$encryptions = array(false);
if ($this->_config->get_boolean('pgcache.cache.ssl')) {
$encryptions[] = 'ssl';
}
return $encryptions;
}
function _do_flush_global_urls() {
global $pagenow;
if (isset($pagenow) && $pagenow == 'edit.php' || (defined('DOING_SNS') && DOING_SNS))
return false;
return true;
}
}
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