Viewing file:  CdnCacheFlush.php (8.98 KB) -rw-rw-rw-
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<?php
/**
* CDN cache purge object
*/
/**
* Class W3_CdnCacheFlush
*/
class W3_CdnCacheFlush {
/**
* Advanced cache config
*
* @var W3_Config
*/
var $_config = null;
/**
* 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();
private $_flushes = 0;
/**
* PHP5 Constructor
*/
function __construct() {
$this->_config = w3_instance('W3_Config');
}
/**
* Purges everything from CDNs that supports it
*/
function purge() {
$w3_plugin_cdn = w3_instance('W3_Plugin_CdnCommon');
$results = array();
return $w3_plugin_cdn->purge_all($results);
}
/**
* Purges cdn mirror post cache
*
* @param integer $post_id
* @return boolean
*/
function purge_post($post_id) {
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('varnish.pgcache.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');
switch (true) {
case $this->_config->get_boolean('pgcache.purge.author'):
case $this->_config->get_boolean('pgcache.purge.archive.daily'):
case $this->_config->get_boolean('pgcache.purge.archive.monthly'):
case $this->_config->get_boolean('pgcache.purge.archive.yearly'):
case $this->_config->get_boolean('pgcache.purge.feed.author'):
$post = get_post($post_id);
}
$front_page = get_option('show_on_front');
/**
* Home (Frontpage) URL
*/
if (($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') && $post) {
$full_urls = array_merge($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));
}
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') && $post) {
$full_urls = array_merge($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));
}
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++;
$w3_plugin_cdncommon= w3_instance('W3_Plugin_CdnCommon');
$results = array();
$files = array();
foreach ($full_urls as $url) {
if (!in_array($url, $this->_repeated_urls) && !in_array($url, $this->_flushed_urls)) {
$parsed = parse_url($url);
$local_site_path = isset($parsed['path'])? ltrim($parsed['path'], '/') : '';
$remote_path = $w3_plugin_cdncommon->uri_to_cdn_uri($local_site_path);
$files[] = $w3_plugin_cdncommon->build_file_descriptor($local_site_path, $remote_path);
$this->_flushed_urls[] = $url;
} elseif (!in_array($url, $this->_repeated_urls)) {
$this->_repeated_urls[] = $url;
}
}
return $w3_plugin_cdncommon->purge($files, false, $results);
}
}
return false;
}
/**
* Purge a single url
* @param $url
*/
function purge_url($url) {
$w3_plugin_cdncommon= w3_instance('W3_Plugin_CdnCommon');
$results = array();
$files = array();
$parsed = parse_url($url);
$local_site_path = isset($parsed['path'])? ltrim($parsed['path'], '/') : '';
$remote_path = $w3_plugin_cdncommon->uri_to_cdn_uri($local_site_path);
$files[] = $w3_plugin_cdncommon->build_file_descriptor($local_site_path, $remote_path);
$this->_flushed_urls[] = $url;
$w3_plugin_cdncommon->purge($files, false, $results);
}
/**
* Clears global and repeated urls
*/
function purge_post_cleanup() {
if ($this->_repeated_urls) {
$w3_plugin_cdncommon= w3_instance('W3_Plugin_CdnCommon');
$results = array();
$files = array();
foreach ($this->_repeated_urls as $url) {
$parsed = parse_url($url);
$local_site_path = isset($parsed['path'])? ltrim($parsed['path'], '/') : '';
$remote_path = $w3_plugin_cdncommon->uri_to_cdn_uri($local_site_path);
$files[] = $w3_plugin_cdncommon->build_file_descriptor($local_site_path, $remote_path);
$this->_flushed_urls[] = $url;
}
$w3_plugin_cdncommon->purge($files, false, $results);
}
}
/**
* If should separate out global urls
* @return bool
*/
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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