397 lines
11 KiB
PHP
397 lines
11 KiB
PHP
<?php
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namespace W3TC;
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/**
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* W3 PgCache plugin - administrative interface
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*/
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/**
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* class PgCache_Plugin_Admin
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*/
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class PgCache_Plugin_Admin {
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/**
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* Config
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*/
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private $_config = null;
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function __construct() {
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$this->_config = Dispatcher::config();
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}
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/**
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* Runs plugin
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*/
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function run() {
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add_filter( 'w3tc_save_options', array( $this, 'w3tc_save_options' ) );
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$config_labels = new PgCache_ConfigLabels();
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add_filter( 'w3tc_config_labels', array( $config_labels, 'config_labels' ) );
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if ( $this->_config->get_boolean( 'pgcache.enabled' ) ) {
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add_filter( 'w3tc_errors', array( $this, 'w3tc_errors' ) );
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add_filter( 'w3tc_usage_statistics_summary_from_history', array(
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$this, 'w3tc_usage_statistics_summary_from_history' ), 10, 2 );
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}
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// Cache groups.
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add_action(
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'w3tc_config_ui_save-w3tc_cachegroups',
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array(
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'\W3TC\CacheGroups_Plugin_Admin',
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'w3tc_config_ui_save_w3tc_cachegroups',
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),
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10,
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1
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);
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}
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function cleanup() {
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// We check to see if we're dealing with a cluster
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$config = Dispatcher::config();
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$is_cluster = $config->get_boolean( 'cluster.messagebus.enabled' );
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// If we are, we notify the subscribers. If not, we just cleanup in here
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if ( $is_cluster ) {
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$this->cleanup_cluster();
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} else {
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$this->cleanup_local();
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}
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}
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/**
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* Will trigger notifications to be sent to the cluster to 'order' them to clean their page cache.
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*/
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function cleanup_cluster() {
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$sns_client = Dispatcher::component( 'Enterprise_CacheFlush_MakeSnsEvent' );
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$sns_client->pgcache_cleanup();
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}
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function cleanup_local() {
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$engine = $this->_config->get_string( 'pgcache.engine' );
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switch ( $engine ) {
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case 'file':
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$w3_cache_file_cleaner = new Cache_File_Cleaner( array(
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'cache_dir' => Util_Environment::cache_blog_dir( 'page' ),
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'clean_timelimit' => $this->_config->get_integer( 'timelimit.cache_gc' )
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) );
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$w3_cache_file_cleaner->clean();
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break;
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case 'file_generic':
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if ( Util_Environment::blog_id() == 0 )
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$flush_dir = W3TC_CACHE_PAGE_ENHANCED_DIR;
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else
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$flush_dir = W3TC_CACHE_PAGE_ENHANCED_DIR . '/' . Util_Environment::host();
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$w3_cache_file_cleaner_generic = new Cache_File_Cleaner_Generic( array(
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'exclude' => array(
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'.htaccess'
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),
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'cache_dir' => $flush_dir,
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'expire' => $this->_config->get_integer( 'browsercache.html.lifetime' ),
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'clean_timelimit' => $this->_config->get_integer( 'timelimit.cache_gc' )
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) );
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$w3_cache_file_cleaner_generic->clean();
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break;
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}
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}
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/**
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* Prime cache
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*
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* @param integer $start
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* @return void
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*/
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function prime( $start = null, $limit = null, $log_callback = null ) {
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if ( is_null( $start ) ) {
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$start = get_option( 'w3tc_pgcache_prime_offset' );
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}
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if ( $start < 0 ) {
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$start = 0;
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}
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$interval = $this->_config->get_integer( 'pgcache.prime.interval' );
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if ( is_null( $limit ) ) {
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$limit = $this->_config->get_integer( 'pgcache.prime.limit' );
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}
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if ( $limit < 1 ) {
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$limit = 1;
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}
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$sitemap = $this->_config->get_string( 'pgcache.prime.sitemap' );
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if ( !is_null( $log_callback ) ) {
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$log_callback( 'Priming from sitemap ' . $sitemap .
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' entries ' . ( $start + 1 ) . '..' . ( $start + $limit ) );
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}
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/**
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* Parse XML sitemap
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*/
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$urls = $this->parse_sitemap( $sitemap );
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/**
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* Queue URLs
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*/
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$queue = array_slice( $urls, $start, $limit );
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if ( count( $urls ) > ( $start + $limit ) ) {
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$next_offset = $start + $limit;
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} else {
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$next_offset = 0;
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}
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update_option( 'w3tc_pgcache_prime_offset', $next_offset, false );
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/**
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* Make HTTP requests and prime cache
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*/
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// use 'WordPress' since by default we use W3TC-powered by
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// which blocks caching
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foreach ( $queue as $url ) {
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Util_Http::get( $url, array( 'user-agent' => 'WordPress' ) );
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if ( !is_null( $log_callback ) ) {
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$log_callback( 'Priming ' . $url );
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}
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}
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}
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/**
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* Parses sitemap
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*
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* @param string $url
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* @return array
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*/
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function parse_sitemap( $url ) {
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if ( !Util_Environment::is_url( $url ) )
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$url = home_url( $url );
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$urls = array( $url );
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$response = Util_Http::get( $url );
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if ( !is_wp_error( $response ) && $response['response']['code'] == 200 ) {
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$url_matches = null;
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$sitemap_matches = null;
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if ( preg_match_all( '~<sitemap>(.*?)</sitemap>~is', $response['body'], $sitemap_matches ) ) {
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$loc_matches = null;
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foreach ( $sitemap_matches[1] as $sitemap_match ) {
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if ( preg_match( '~<loc>(.*?)</loc>~is', $sitemap_match, $loc_matches ) ) {
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$loc = trim( $loc_matches[1] );
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if ( $loc ) {
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$urls = array_merge( $urls, $this->parse_sitemap( $loc ) );
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}
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}
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}
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} elseif ( preg_match_all( '~<url>(.*?)</url>~is', $response['body'], $url_matches ) ) {
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$locs = array();
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$loc_matches = null;
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$priority_matches = null;
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foreach ( $url_matches[1] as $url_match ) {
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$loc = '';
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$priority = 0.5;
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if ( preg_match( '~<loc>(.*?)</loc>~is', $url_match, $loc_matches ) ) {
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$loc = trim( $loc_matches[1] );
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}
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if ( preg_match( '~<priority>(.*?)</priority>~is', $url_match, $priority_matches ) ) {
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$priority = (double) trim( $priority_matches[1] );
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}
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if ( $loc && $priority ) {
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$locs[$loc] = $priority;
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}
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}
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arsort( $locs );
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$urls = array_merge( $urls, array_keys( $locs ) );
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} elseif ( preg_match_all( '~<rss[^>]*>(.*?)</rss>~is', $response['body'], $sitemap_matches ) ) {
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// rss feed format
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if ( preg_match_all( '~<link[^>]*>(.*?)</link>~is', $response['body'], $url_matches ) ) {
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foreach ( $url_matches[1] as $url_match ) {
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$url = trim( $url_match );
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$cdata_matches = null;
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if ( preg_match( '~<!\[CDATA\[(.*)\]\]>~is', $url, $cdata_matches ) ) {
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$url = $cdata_matches[1];
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}
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$urls[] = $url;
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}
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}
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}
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}
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return $urls;
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}
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/**
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* Makes get requests to url specific to a post, its permalink
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*
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* @param unknown $post_id
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* @return boolean returns true on success
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*/
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public function prime_post( $post_id ) {
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$post_urls = Util_PageUrls::get_post_urls( $post_id );
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// Make HTTP requests and prime cache
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foreach ( $post_urls as $url ) {
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$result = Util_Http::get( $url, array( 'user-agent' => 'WordPress' ) );
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if ( is_wp_error( $result ) )
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return false;
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}
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return true;
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}
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public function w3tc_save_options( $data ) {
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$new_config = $data['new_config'];
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$old_config = $data['old_config'];
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if ( ( !$new_config->get_boolean( 'pgcache.cache.home' ) && $old_config->get_boolean( 'pgcache.cache.home' ) ) ||
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$new_config->get_boolean( 'pgcache.reject.front_page' ) && !$old_config->get_boolean( 'pgcache.reject.front_page' ) ||
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!$new_config->get_boolean( 'pgcache.cache.feed' ) && $old_config->get_boolean( 'pgcache.cache.feed' ) ||
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!$new_config->get_boolean( 'pgcache.cache.query' ) && $old_config->get_boolean( 'pgcache.cache.query' ) ||
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!$new_config->get_boolean( 'pgcache.cache.ssl' ) && $old_config->get_boolean( 'pgcache.cache.ssl' ) ) {
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$state = Dispatcher::config_state();
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$state->set( 'common.show_note.flush_posts_needed', true );
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$state->save();
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}
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return $data;
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}
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public function w3tc_errors( $errors ) {
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$c = Dispatcher::config();
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if ( $c->get_string( 'pgcache.engine' ) == 'memcached' ) {
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$memcached_servers = $c->get_array( 'pgcache.memcached.servers' );
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$memcached_binary_protocol = $c->get_boolean( 'pgcache.memcached.binary_protocol' );
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$memcached_username = $c->get_string( 'pgcache.memcached.username' );
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$memcached_password = $c->get_string( 'pgcache.memcached.password' );
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if ( !Util_Installed::is_memcache_available( $memcached_servers, $memcached_binary_protocol, $memcached_username, $memcached_password ) ) {
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if ( !isset( $errors['memcache_not_responding.details'] ) )
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$errors['memcache_not_responding.details'] = array();
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$errors['memcache_not_responding.details'][] = sprintf(
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__( 'Page Cache: %s.', 'w3-total-cache' ),
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implode( ', ', $memcached_servers ) );
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}
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}
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return $errors;
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}
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public function w3tc_usage_statistics_summary_from_history( $summary, $history ) {
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// total size
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$g = Dispatcher::component( 'PgCache_ContentGrabber' );
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$pagecache = array();
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$e = $this->_config->get_string( 'pgcache.engine' );
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$pagecache['engine_name'] = Cache::engine_name( $e );
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$file_generic = ( $e == 'file_generic' );
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// build metrics in php block
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if ( !isset( $summary['php'] ) ) {
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$summary['php'] = array();
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}
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Util_UsageStatistics::sum_by_prefix_positive( $summary['php'],
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$history, 'php_requests_pagecache' );
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// need to return cache size
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if ( $file_generic ) {
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list( $v, $should_count ) =
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Util_UsageStatistics::get_or_init_size_transient(
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'w3tc_ustats_pagecache_size', $summary );
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if ( $should_count ) {
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$size = $g->get_cache_stats_size( $summary['timeout_time'] );
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$v['size_used'] = Util_UsageStatistics::bytes_to_size2(
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$size, 'bytes' );
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$v['items'] = Util_UsageStatistics::integer2(
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$size, 'items' );
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set_transient( 'w3tc_ustats_pagecache_size', $v, 55 );
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}
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if ( isset( $v['size_used'] ) ) {
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$pagecache['size_used'] = $v['size_used'];
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$pagecache['items'] = $v['items'];
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}
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if ( isset( $summary['access_log'] ) ) {
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$pagecache['requests'] = $summary['access_log']['dynamic_requests_total_v'];
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$pagecache['requests_hit'] = $pagecache['requests'] - $summary['php']['php_requests_v'];
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if ($pagecache['requests_hit'] < 0) {
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$pagecache['requests_hit'] = 0;
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}
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}
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} else {
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// all request counts data available
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$pagecache['requests'] = $summary['php']['php_requests_v'];
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$pagecache['requests_hit'] =
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isset( $summary['php']['php_requests_pagecache_hit'] ) ?
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$summary['php']['php_requests_pagecache_hit'] : 0;
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$requests_time_ms = Util_UsageStatistics::sum( $history,
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'pagecache_requests_time_10ms' ) * 10;
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$php_requests = Util_UsageStatistics::sum( $history,
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'php_requests' );
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if ( $php_requests > 0 ) {
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$pagecache['request_time_ms'] = Util_UsageStatistics::integer(
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$requests_time_ms / $php_requests );
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}
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}
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if ( $e == 'memcached' ) {
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$pagecache['size_percent'] = $summary['memcached']['size_percent'];
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}
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if ( isset($pagecache['requests_hit'] ) ) {
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$pagecache['requests_hit_rate'] = Util_UsageStatistics::percent(
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$pagecache['requests_hit'], $pagecache['requests'] );
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}
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if ( !isset( $summary['php']['php_requests_pagecache_hit'] ) ) {
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$summary['php']['php_requests_pagecache_hit'] = 0;
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}
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if ( isset( $summary['php']['php_requests_v'] ) ) {
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$v = $summary['php']['php_requests_v'] -
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$summary['php']['php_requests_pagecache_hit'];
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if ( $v < 0 ) {
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$v = 0;
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}
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$summary['php']['php_requests_pagecache_miss'] = $v;
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}
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if ( isset( $pagecache['requests'] ) ) {
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$pagecache['requests_per_second'] =
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Util_UsageStatistics::value_per_period_seconds( $pagecache['requests'], $summary );
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}
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$summary['pagecache'] = $pagecache;
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return $summary;
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}
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}
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