name : CacheFlush_Locally.php <?php namespace W3TC; /** * W3 Cache flushing * * priorities are very important for actions here. * if e.g. CDN is flushed before local page cache - CDN can cache again * still not flushed pages from local page cache. * 100 - db * 200 - 999 local objects, like object cache * 1000 - 1999 local files (minify, pagecache) * 2000 - 2999 local reverse proxies varnish, nginx * 3000 - external caches like cdn, cloudflare */ class CacheFlush_Locally { /** * Cleans db cache */ function dbcache_flush( $extras = array() ) { if ( isset( $extras['only'] ) && $extras['only'] != 'dbcache' ) return; do_action( 'w3tc_flush_dbcache' ); if ( !method_exists( $GLOBALS['wpdb'], 'flush_cache' ) ) return false; return $GLOBALS['wpdb']->flush_cache( $extras ); } /** * Cleans object cache */ function objectcache_flush( $extras = array() ) { if ( isset( $extras['only'] ) && $extras['only'] != 'objectcache' ) return; do_action( 'w3tc_flush_objectcache' ); $objectcache = Dispatcher::component( 'ObjectCache_WpObjectCache_Regular' ); $v = $objectcache->flush(); do_action( 'w3tc_flush_after_objectcache' ); return $v; } /** * Cleans fragment cache */ function fragmentcache_flush( $extras = array() ) { if ( isset( $extras['only'] ) && $extras['only'] != 'fragment' ) return; do_action( 'w3tc_flush_fragmentcache' ); do_action( 'w3tc_flush_after_fragmentcache' ); return true; } /** * Cleans fragment cache */ function fragmentcache_flush_group( $group ) { do_action( 'w3tc_flush_fragmentcache_group', $group ); do_action( 'w3tc_flush_after_fragmentcache_group', $group ); return true; } function minifycache_flush( $extras = array() ) { if ( isset( $extras['only'] ) && $extras['only'] != 'minify' ) return; do_action( 'w3tc_flush_minify' ); $minifycache = Dispatcher::component( 'Minify_MinifiedFileRequestHandler' ); $v = $minifycache->flush(); do_action( 'w3tc_flush_after_minify' ); return $v; } function minifycache_flush_all( $extras = array() ) { if ( isset( $extras['minify'] ) && $extras['minify'] == 'purge_map' ) delete_option( 'w3tc_minify' ); $this->minifycache_flush( $extras ); } /** * Updates Query String */ function browsercache_flush( $extras = array() ) { if ( isset( $extras['only'] ) && $extras['only'] != 'browsercache' ) return; do_action( 'w3tc_flush_browsercache' ); update_option( 'w3tc_browsercache_flush_timestamp', rand( 10000, 99999 ) . '' ); do_action( 'w3tc_flush_after_browsercache' ); } /** * Purge CDN mirror cache */ function cdn_purge_all( $extras = array() ) { $do_flush = apply_filters( 'w3tc_preflush_cdn_all', true, $extras ); $v = false; if ( $do_flush ) { do_action( 'w3tc_cdn_purge_all' ); $cdn_core = Dispatcher::component( 'Cdn_Core' ); $cdn = $cdn_core->get_cdn(); $results = array(); $v = $cdn->purge_all( $results ); do_action( 'w3tc_cdn_purge_all_after' ); } return $v; } /** * Purges Files from Varnish (If enabled) and CDN * * @param array $purgefiles array consisting of CdnCommon file descriptors * array(array('local_path'=>'', 'remote_path'=> '')) * @return boolean */ function cdn_purge_files( $purgefiles ) { do_action( 'w3tc_cdn_purge_files', $purgefiles ); $common = Dispatcher::component( 'Cdn_Core' ); $results = array(); $v = $common->purge( $purgefiles, $results ); do_action( 'w3tc_cdn_purge_files_after', $purgefiles ); return $v; } /** * Flushes the system APC * * @return bool */ function opcache_flush() { $o = Dispatcher::component( 'SystemOpCache_Core' ); return $o->flush(); } /** * Purges/Flushes post from page cache, varnish and cdn cache */ function flush_post( $post_id, $extras = null ) { $do_flush = apply_filters( 'w3tc_preflush_post', true, $extras ); if ( $do_flush ) do_action( 'w3tc_flush_post', $post_id, $extras ); } /** * Purges/Flushes page contents - page cache, varnish and cdn cache * When global changes affect whole content but not internal data structures */ function flush_posts( $extras = null ) { $do_flush = apply_filters( 'w3tc_preflush_posts', true, $extras ); if ( $do_flush ) do_action( 'w3tc_flush_posts', $extras ); } /** * Flushes all enabled caches. */ function flush_all( $extras ) { static $default_actions_added = false; if ( !$default_actions_added ) { $config = Dispatcher::config(); $opcache = Dispatcher::component( 'SystemOpCache_Core' ); if ( $opcache->is_enabled() ) add_action( 'w3tc_flush_all', array( $this, 'opcache_flush' ), 50, 1 ); if ( $config->get_boolean( 'dbcache.enabled' ) ) add_action( 'w3tc_flush_all', array( $this, 'dbcache_flush' ), 100, 2 ); if ( $config->get_boolean( 'objectcache.enabled' ) ) add_action( 'w3tc_flush_all', array( $this, 'objectcache_flush' ), 200, 1 ); if ( $config->get_boolean( 'minify.enabled' ) ) add_action( 'w3tc_flush_all', array( $this, 'minifycache_flush_all' ), 1000, 1 ); $default_actions_added = true; } $do_flush = apply_filters( 'w3tc_preflush_all', true, $extras ); if ( $do_flush ) do_action( 'w3tc_flush_all', $extras ); } function flush_group( $group, $extras ) { $do_flush = apply_filters( 'w3tc_preflush_group', true, $group, $extras ); if ( $do_flush ) do_action( 'w3tc_flush_group', $group, $extras ); } /** * Purges/Flushes url from page cache, varnish and cdn cache */ function flush_url( $url, $extras = null ) { $do_flush = apply_filters( 'w3tc_preflush_url', true, $extras ); if ( $do_flush ) do_action( 'w3tc_flush_url', $url, $extras ); } /** * Makes get request to url specific to post, ie permalinks * * @param unknown $post_id * @return mixed */ function prime_post( $post_id ) { $pgcache = Dispatcher::component( 'PgCache_Plugin_Admin' ); return $pgcache->prime_post( $post_id ); } /** * Called at the end of http request processing * so that flushers can finish something they've decided to delay */ public function execute_delayed_operations() { static $default_actions_added = false; if ( !$default_actions_added ) { $config = Dispatcher::config(); if ( $config->get_boolean( 'pgcache.enabled' ) ) add_filter( 'w3tc_flush_execute_delayed_operations', array( $this, '_execute_delayed_operations_pgcache' ), 1100 ); if ( $config->get_boolean( 'varnish.enabled' ) ) add_filter( 'w3tc_flush_execute_delayed_operations', array( $this, '_execute_delayed_operations_varnish' ), 2000 ); $default_actions_added = true; } // build response in a form 'module' => 'error message' (empty if no error) $actions_made = array(); $actions_made = apply_filters( 'w3tc_flush_execute_delayed_operations', $actions_made ); return $actions_made; } public function _execute_delayed_operations_pgcache( $actions_made ) { $o = Dispatcher::component( 'PgCache_Flush' ); $count_flushed = $o->flush_post_cleanup(); if ( $count_flushed > 0 ) $actions_made[] = array( 'module' => 'pgcache' ); return $actions_made; } public function _execute_delayed_operations_varnish( $actions_made ) { $o = Dispatcher::component( 'Varnish_Flush' ); $count_flushed = $o->flush_post_cleanup(); if ( $count_flushed > 0 ) $actions_made[] = array( 'module' => 'varnish' ); return $actions_made; } }