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| Dir : /home/trave494/live2news.com/wp-content/plugins/w3-total-cache/PgCache_Plugin_Admin.php |
<?php
namespace W3TC;
/**
* W3 PgCache plugin - administrative interface
*/
/**
* class PgCache_Plugin_Admin
*/
class PgCache_Plugin_Admin {
/**
* Config
*/
private $_config = null;
function __construct() {
$this->_config = Dispatcher::config();
}
/**
* Runs plugin
*/
function run() {
add_filter( 'w3tc_save_options', array( $this, 'w3tc_save_options' ) );
$config_labels = new PgCache_ConfigLabels();
add_filter( 'w3tc_config_labels', array( $config_labels, 'config_labels' ) );
if ( $this->_config->get_boolean( 'pgcache.enabled' ) ) {
add_filter( 'w3tc_errors', array( $this, 'w3tc_errors' ) );
add_filter( 'w3tc_usage_statistics_summary_from_history', array(
$this, 'w3tc_usage_statistics_summary_from_history' ), 10, 2 );
}
// Cache groups.
add_action(
'w3tc_config_ui_save-w3tc_cachegroups',
array(
'\W3TC\CacheGroups_Plugin_Admin',
'w3tc_config_ui_save_w3tc_cachegroups',
),
10,
1
);
}
function cleanup() {
// We check to see if we're dealing with a cluster
$config = Dispatcher::config();
$is_cluster = $config->get_boolean( 'cluster.messagebus.enabled' );
// If we are, we notify the subscribers. If not, we just cleanup in here
if ( $is_cluster ) {
$this->cleanup_cluster();
} else {
$this->cleanup_local();
}
}
/**
* Will trigger notifications to be sent to the cluster to 'order' them to clean their page cache.
*/
function cleanup_cluster() {
$sns_client = Dispatcher::component( 'Enterprise_CacheFlush_MakeSnsEvent' );
$sns_client->pgcache_cleanup();
}
function cleanup_local() {
$engine = $this->_config->get_string( 'pgcache.engine' );
switch ( $engine ) {
case 'file':
$w3_cache_file_cleaner = new Cache_File_Cleaner( array(
'cache_dir' => Util_Environment::cache_blog_dir( 'page' ),
'clean_timelimit' => $this->_config->get_integer( 'timelimit.cache_gc' )
) );
$w3_cache_file_cleaner->clean();
break;
case 'file_generic':
if ( Util_Environment::blog_id() == 0 )
$flush_dir = W3TC_CACHE_PAGE_ENHANCED_DIR;
else
$flush_dir = W3TC_CACHE_PAGE_ENHANCED_DIR . '/' . Util_Environment::host();
$w3_cache_file_cleaner_generic = new Cache_File_Cleaner_Generic( array(
'exclude' => array(
'.htaccess'
),
'cache_dir' => $flush_dir,
'expire' => $this->_config->get_integer( 'pgcache.lifetime' ),
'clean_timelimit' => $this->_config->get_integer( 'timelimit.cache_gc' )
) );
$w3_cache_file_cleaner_generic->clean();
break;
}
}
/**
* Prime cache
*
* @param integer $start
* @return void
*/
function prime( $start = null, $limit = null, $log_callback = null ) {
if ( is_null( $start ) ) {
$start = get_option( 'w3tc_pgcache_prime_offset' );
}
if ( $start < 0 ) {
$start = 0;
}
$interval = $this->_config->get_integer( 'pgcache.prime.interval' );
if ( is_null( $limit ) ) {
$limit = $this->_config->get_integer( 'pgcache.prime.limit' );
}
if ( $limit < 1 ) {
$limit = 1;
}
$sitemap = $this->_config->get_string( 'pgcache.prime.sitemap' );
if ( !is_null( $log_callback ) ) {
$log_callback( 'Priming from sitemap ' . $sitemap .
' entries ' . ( $start + 1 ) . '..' . ( $start + $limit ) );
}
/**
* Parse XML sitemap
*/
$urls = $this->parse_sitemap( $sitemap );
/**
* Queue URLs
*/
$queue = array_slice( $urls, $start, $limit );
if ( count( $urls ) > ( $start + $limit ) ) {
$next_offset = $start + $limit;
} else {
$next_offset = 0;
}
update_option( 'w3tc_pgcache_prime_offset', $next_offset, false );
/**
* Make HTTP requests and prime cache
*/
// use 'WordPress' since by default we use W3TC-powered by
// which blocks caching
foreach ( $queue as $url ) {
Util_Http::get( $url, array( 'user-agent' => 'WordPress' ) );
if ( !is_null( $log_callback ) ) {
$log_callback( 'Priming ' . $url );
}
}
}
/**
* Parses sitemap
*
* @param string $url
* @return array
*/
function parse_sitemap( $url ) {
if ( !Util_Environment::is_url( $url ) )
$url = home_url( $url );
$urls = array( $url );
$response = Util_Http::get( $url );
if ( !is_wp_error( $response ) && $response['response']['code'] == 200 ) {
$url_matches = null;
$sitemap_matches = null;
if ( preg_match_all( '~<!--.*?-->(*SKIP)(*FAIL)|<sitemap>(.*?)</sitemap>~is', $response['body'], $sitemap_matches ) ) {
$loc_matches = null;
foreach ( $sitemap_matches[1] as $sitemap_match ) {
if ( preg_match( '~<loc>(.*?)</loc>~is', $sitemap_match, $loc_matches ) ) {
$loc = trim( $loc_matches[1] );
if ( $loc ) {
$urls = array_merge( $urls, $this->parse_sitemap( $loc ) );
}
}
}
} elseif ( preg_match_all( '~<!--.*?-->(*SKIP)(*FAIL)|<url>(.*?)</url>~is', $response['body'], $url_matches ) ) {
$locs = array();
$loc_matches = null;
$priority_matches = null;
foreach ( $url_matches[1] as $url_match ) {
$loc = '';
$priority = 0.5;
if ( preg_match( '~<loc>(.*?)</loc>~is', $url_match, $loc_matches ) ) {
$loc = trim( $loc_matches[1] );
}
if ( preg_match( '~<priority>(.*?)</priority>~is', $url_match, $priority_matches ) ) {
$priority = (double) trim( $priority_matches[1] );
}
if ( $loc && $priority ) {
$locs[$loc] = $priority;
}
}
arsort( $locs );
$urls = array_merge( $urls, array_keys( $locs ) );
} elseif ( preg_match_all( '~<!--.*?-->(*SKIP)(*FAIL)|<rss[^>]*>(.*?)</rss>~is', $response['body'], $sitemap_matches ) ) {
// rss feed format
if ( preg_match_all( '~<link[^>]*>(.*?)</link>~is', $response['body'], $url_matches ) ) {
foreach ( $url_matches[1] as $url_match ) {
$url = trim( $url_match );
$cdata_matches = null;
if ( preg_match( '~<!\[CDATA\[(.*)\]\]>~is', $url, $cdata_matches ) ) {
$url = $cdata_matches[1];
}
$urls[] = $url;
}
}
}
}
return $urls;
}
/**
* Makes get requests to url specific to a post, its permalink
*
* @param unknown $post_id
* @return boolean returns true on success
*/
public function prime_post( $post_id ) {
$post_urls = Util_PageUrls::get_post_urls( $post_id );
// Make HTTP requests and prime cache
foreach ( $post_urls as $url ) {
$result = Util_Http::get( $url, array( 'user-agent' => 'WordPress' ) );
if ( is_wp_error( $result ) )
return false;
}
return true;
}
public function w3tc_save_options( $data ) {
$new_config = $data['new_config'];
$old_config = $data['old_config'];
if ( $new_config->get_boolean( 'pgcache.cache.feed' ) ) {
$new_config->set( 'pgcache.cache.nginx_handle_xml', true );
}
if ( ( !$new_config->get_boolean( 'pgcache.cache.home' ) && $old_config->get_boolean( 'pgcache.cache.home' ) ) ||
$new_config->get_boolean( 'pgcache.reject.front_page' ) && !$old_config->get_boolean( 'pgcache.reject.front_page' ) ||
!$new_config->get_boolean( 'pgcache.cache.feed' ) && $old_config->get_boolean( 'pgcache.cache.feed' ) ||
!$new_config->get_boolean( 'pgcache.cache.query' ) && $old_config->get_boolean( 'pgcache.cache.query' ) ||
!$new_config->get_boolean( 'pgcache.cache.ssl' ) && $old_config->get_boolean( 'pgcache.cache.ssl' ) ) {
$state = Dispatcher::config_state();
$state->set( 'common.show_note.flush_posts_needed', true );
$state->save();
}
return $data;
}
public function w3tc_errors( $errors ) {
$c = Dispatcher::config();
if ( $c->get_string( 'pgcache.engine' ) == 'memcached' ) {
$memcached_servers = $c->get_array( 'pgcache.memcached.servers' );
$memcached_binary_protocol = $c->get_boolean( 'pgcache.memcached.binary_protocol' );
$memcached_username = $c->get_string( 'pgcache.memcached.username' );
$memcached_password = $c->get_string( 'pgcache.memcached.password' );
if ( !Util_Installed::is_memcache_available( $memcached_servers, $memcached_binary_protocol, $memcached_username, $memcached_password ) ) {
if ( !isset( $errors['memcache_not_responding.details'] ) )
$errors['memcache_not_responding.details'] = array();
$errors['memcache_not_responding.details'][] = sprintf(
__( 'Page Cache: %s.', 'w3-total-cache' ),
implode( ', ', $memcached_servers ) );
}
}
return $errors;
}
public function w3tc_usage_statistics_summary_from_history( $summary, $history ) {
// total size
$g = Dispatcher::component( 'PgCache_ContentGrabber' );
$pagecache = array();
$e = $this->_config->get_string( 'pgcache.engine' );
$pagecache['engine_name'] = Cache::engine_name( $e );
$file_generic = ( $e == 'file_generic' );
// build metrics in php block
if ( !isset( $summary['php'] ) ) {
$summary['php'] = array();
}
Util_UsageStatistics::sum_by_prefix_positive( $summary['php'],
$history, 'php_requests_pagecache' );
// need to return cache size
if ( $file_generic ) {
list( $v, $should_count ) =
Util_UsageStatistics::get_or_init_size_transient(
'w3tc_ustats_pagecache_size', $summary );
if ( $should_count ) {
$size = $g->get_cache_stats_size( $summary['timeout_time'] );
$v['size_used'] = Util_UsageStatistics::bytes_to_size2(
$size, 'bytes' );
$v['items'] = Util_UsageStatistics::integer2(
$size, 'items' );
set_transient( 'w3tc_ustats_pagecache_size', $v, 55 );
}
if ( isset( $v['size_used'] ) ) {
$pagecache['size_used'] = $v['size_used'];
$pagecache['items'] = $v['items'];
}
if ( isset( $summary['access_log'] ) ) {
$pagecache['requests'] = $summary['access_log']['dynamic_requests_total_v'];
$pagecache['requests_hit'] = $pagecache['requests'] - $summary['php']['php_requests_v'];
if ($pagecache['requests_hit'] < 0) {
$pagecache['requests_hit'] = 0;
}
}
} else {
// all request counts data available
$pagecache['requests'] = $summary['php']['php_requests_v'];
$pagecache['requests_hit'] =
isset( $summary['php']['php_requests_pagecache_hit'] ) ?
$summary['php']['php_requests_pagecache_hit'] : 0;
$requests_time_ms = Util_UsageStatistics::sum( $history,
'pagecache_requests_time_10ms' ) * 10;
$php_requests = Util_UsageStatistics::sum( $history,
'php_requests' );
if ( $php_requests > 0 ) {
$pagecache['request_time_ms'] = Util_UsageStatistics::integer(
$requests_time_ms / $php_requests );
}
}
if ( $e == 'memcached' ) {
$pagecache['size_percent'] = $summary['memcached']['size_percent'];
}
if ( isset($pagecache['requests_hit'] ) ) {
$pagecache['requests_hit_rate'] = Util_UsageStatistics::percent(
$pagecache['requests_hit'], $pagecache['requests'] );
}
if ( !isset( $summary['php']['php_requests_pagecache_hit'] ) ) {
$summary['php']['php_requests_pagecache_hit'] = 0;
}
if ( isset( $summary['php']['php_requests_v'] ) ) {
$v = $summary['php']['php_requests_v'] -
$summary['php']['php_requests_pagecache_hit'];
if ( $v < 0 ) {
$v = 0;
}
$summary['php']['php_requests_pagecache_miss'] = $v;
}
if ( isset( $pagecache['requests'] ) ) {
$pagecache['requests_per_second'] =
Util_UsageStatistics::value_per_period_seconds( $pagecache['requests'], $summary );
}
$summary['pagecache'] = $pagecache;
return $summary;
}
}