whoami7 - Manager
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proc
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self
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root
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usr
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litespeed-wp-plugin
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6.4.1
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litespeed-cache
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src
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files >> //proc/self/root/usr/src/litespeed-wp-plugin/6.4.1/litespeed-cache/src/purge.cls.php
<?php /** * The plugin purge class for X-LiteSpeed-Purge * * @since 1.1.3 * @since 2.2 Refactored. Changed access from public to private for most func and class variables. */ namespace LiteSpeed; defined('WPINC') || exit(); class Purge extends Base { const LOG_TAG = '🧹'; protected $_pub_purge = array(); protected $_pub_purge2 = array(); protected $_priv_purge = array(); protected $_purge_related = false; protected $_purge_single = false; const X_HEADER = 'X-LiteSpeed-Purge'; const X_HEADER2 = 'X-LiteSpeed-Purge2'; const DB_QUEUE = 'queue'; const DB_QUEUE2 = 'queue2'; const TYPE_PURGE_ALL = 'purge_all'; const TYPE_PURGE_ALL_LSCACHE = 'purge_all_lscache'; const TYPE_PURGE_ALL_CSSJS = 'purge_all_cssjs'; const TYPE_PURGE_ALL_LOCALRES = 'purge_all_localres'; const TYPE_PURGE_ALL_CCSS = 'purge_all_ccss'; const TYPE_PURGE_ALL_UCSS = 'purge_all_ucss'; const TYPE_PURGE_ALL_LQIP = 'purge_all_lqip'; const TYPE_PURGE_ALL_AVATAR = 'purge_all_avatar'; const TYPE_PURGE_ALL_OBJECT = 'purge_all_object'; const TYPE_PURGE_ALL_OPCACHE = 'purge_all_opcache'; const TYPE_PURGE_FRONT = 'purge_front'; const TYPE_PURGE_UCSS = 'purge_ucss'; const TYPE_PURGE_FRONTPAGE = 'purge_frontpage'; const TYPE_PURGE_PAGES = 'purge_pages'; const TYPE_PURGE_ERROR = 'purge_error'; /** * Init hooks * * @since 3.0 */ public function init() { //register purge actions $purge_post_events = array( // 'edit_post', // 'save_post', 'delete_post', 'wp_trash_post', // 'clean_post_cache', // This will disable wc's not purge product when stock status not change setting 'wp_update_comment_count', // TODO: check if needed for non ESI ); foreach ($purge_post_events as $event) { // this will purge all related tags add_action($event, array($this, 'purge_post')); } // Purge post only when status is/was publish add_action('transition_post_status', array($this, 'purge_publish'), 10, 3); add_action('wp_update_comment_count', array($this, 'purge_feeds')); if ($this->conf(self::O_OPTM_UCSS)) { add_action('edit_post', __NAMESPACE__ . '\Purge::purge_ucss'); } } /** * Only purge publish related status post * * @since 3.0 * @access public */ public function purge_publish($new_status, $old_status, $post) { if ($new_status != 'publish' && $old_status != 'publish') { return; } $this->purge_post($post->ID); } /** * Handle all request actions from main cls * * @since 1.8 * @access public */ public function handler() { $type = Router::verify_type(); switch ($type) { case self::TYPE_PURGE_ALL: $this->_purge_all(); break; case self::TYPE_PURGE_ALL_LSCACHE: $this->_purge_all_lscache(); break; case self::TYPE_PURGE_ALL_CSSJS: $this->_purge_all_cssjs(); break; case self::TYPE_PURGE_ALL_LOCALRES: $this->_purge_all_localres(); break; case self::TYPE_PURGE_ALL_CCSS: $this->_purge_all_ccss(); break; case self::TYPE_PURGE_ALL_UCSS: $this->_purge_all_ucss(); break; case self::TYPE_PURGE_ALL_LQIP: $this->_purge_all_lqip(); break; case self::TYPE_PURGE_ALL_AVATAR: $this->_purge_all_avatar(); break; case self::TYPE_PURGE_ALL_OBJECT: $this->_purge_all_object(); break; case self::TYPE_PURGE_ALL_OPCACHE: $this->purge_all_opcache(); break; case self::TYPE_PURGE_FRONT: $this->_purge_front(); break; case self::TYPE_PURGE_UCSS: $this->_purge_ucss(); break; case self::TYPE_PURGE_FRONTPAGE: $this->_purge_frontpage(); break; case self::TYPE_PURGE_PAGES: $this->_purge_pages(); break; case strpos($type, self::TYPE_PURGE_ERROR) === 0: $this->_purge_error(substr($type, strlen(self::TYPE_PURGE_ERROR))); break; default: break; } Admin::redirect(); } /** * Shortcut to purge all lscache * * @since 1.0.0 * @access public */ public static function purge_all($reason = false) { self::cls()->_purge_all($reason); } /** * Purge all caches (lscache/op/oc) * * @since 2.2 * @access private */ private function _purge_all($reason = false) { // if ( defined( 'LITESPEED_CLI' ) ) { // // Can't send, already has output, need to save and wait for next run // self::update_option( self::DB_QUEUE, $curr_built ); // self::debug( 'CLI request, queue stored: ' . $curr_built ); // } // else { $this->_purge_all_lscache(true); $this->_purge_all_cssjs(true); $this->_purge_all_localres(true); // $this->_purge_all_ccss( true ); // $this->_purge_all_lqip( true ); $this->_purge_all_object(true); $this->purge_all_opcache(true); // } if (!is_string($reason)) { $reason = false; } if ($reason) { $reason = "( $reason )"; } self::debug('Purge all ' . $reason, 3); $msg = __('Purged all caches successfully.', 'litespeed-cache'); !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed($msg); do_action('litespeed_purged_all'); } /** * Alerts LiteSpeed Web Server to purge all pages. * * For multisite installs, if this is called by a site admin (not network admin), * it will only purge all posts associated with that site. * * @since 2.2 * @access public */ private function _purge_all_lscache($silence = false) { $this->_add('*'); if (!$silence) { $msg = __('Notified LiteSpeed Web Server to purge all LSCache entries.', 'litespeed-cache'); !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed($msg); } } /** * Delete all critical css * * @since 2.3 * @access private */ private function _purge_all_ccss($silence = false) { do_action('litespeed_purged_all_ccss'); $this->cls('CSS')->rm_cache_folder('ccss'); $this->cls('Data')->url_file_clean('ccss'); if (!$silence) { $msg = __('Cleaned all Critical CSS files.', 'litespeed-cache'); !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed($msg); } } /** * Delete all unique css * * @since 2.3 * @access private */ private function _purge_all_ucss($silence = false) { do_action('litespeed_purged_all_ucss'); $this->cls('CSS')->rm_cache_folder('ucss'); $this->cls('Data')->url_file_clean('ucss'); if (!$silence) { $msg = __('Cleaned all Unique CSS files.', 'litespeed-cache'); !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed($msg); } } /** * Purge one UCSS by URL * * @since 4.5 * @access public */ public static function purge_ucss($post_id_or_url) { self::debug('Purge a single UCSS: ' . $post_id_or_url); // If is post_id, generate URL if (!preg_match('/\D/', $post_id_or_url)) { $post_id_or_url = get_permalink($post_id_or_url); } $post_id_or_url = untrailingslashit($post_id_or_url); $existing_url_files = Data::cls()->mark_as_expired($post_id_or_url, true); if ($existing_url_files) { // Add to UCSS Q self::cls('UCSS')->add_to_q($existing_url_files); } } /** * Delete all LQIP images * * @since 3.0 * @access private */ private function _purge_all_lqip($silence = false) { do_action('litespeed_purged_all_lqip'); $this->cls('Placeholder')->rm_cache_folder('lqip'); if (!$silence) { $msg = __('Cleaned all LQIP files.', 'litespeed-cache'); !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed($msg); } } /** * Delete all avatar images * * @since 3.0 * @access private */ private function _purge_all_avatar($silence = false) { do_action('litespeed_purged_all_avatar'); $this->cls('Avatar')->rm_cache_folder('avatar'); if (!$silence) { $msg = __('Cleaned all Gravatar files.', 'litespeed-cache'); !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed($msg); } } /** * Delete all localized JS * * @since 3.3 * @access private */ private function _purge_all_localres($silence = false) { do_action('litespeed_purged_all_localres'); $this->_add(Tag::TYPE_LOCALRES); if (!$silence) { $msg = __('Cleaned all localized resource entries.', 'litespeed-cache'); !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed($msg); } } /** * Alerts LiteSpeed Web Server to purge pages. * * @since 1.2.2 * @access private */ private function _purge_all_cssjs($silence = false) { if (defined('DOING_CRON') || defined('LITESPEED_DID_send_headers')) { self::debug('❌ Bypassed cssjs delete as header sent (lscache purge after this point will fail) or doing cron'); return; } $this->_purge_all_lscache($silence); // Purge CSSJS must purge lscache too to avoid 404 do_action('litespeed_purged_all_cssjs'); Optimize::update_option(Optimize::ITEM_TIMESTAMP_PURGE_CSS, time()); $this->_add(Tag::TYPE_MIN); $this->cls('CSS')->rm_cache_folder('css'); $this->cls('CSS')->rm_cache_folder('js'); $this->cls('Data')->url_file_clean('css'); $this->cls('Data')->url_file_clean('js'); // Clear UCSS queue as it used combined CSS to generate $this->clear_q('ucss', true); if (!$silence) { $msg = __('Notified LiteSpeed Web Server to purge CSS/JS entries.', 'litespeed-cache'); !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed($msg); } } /** * Purge opcode cache * * @since 1.8.2 * @access public */ public function purge_all_opcache($silence = false) { if (!Router::opcache_enabled()) { self::debug('Failed to reset opcode cache due to opcache not enabled'); if (!$silence) { $msg = __('Opcode cache is not enabled.', 'litespeed-cache'); Admin_Display::error($msg); } return false; } // Purge opcode cache opcache_reset(); self::debug('Reset opcode cache'); if (!$silence) { $msg = __('Reset the entire opcode cache successfully.', 'litespeed-cache'); !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed($msg); } return true; } /** * Purge object cache * * @since 3.4 * @access public */ public static function purge_all_object($silence = true) { self::cls()->_purge_all_object($silence); } /** * Purge object cache * * @since 1.8 * @access private */ private function _purge_all_object($silence = false) { if (!defined('LSCWP_OBJECT_CACHE')) { self::debug('Failed to flush object cache due to object cache not enabled'); if (!$silence) { $msg = __('Object cache is not enabled.', 'litespeed-cache'); Admin_Display::error($msg); } return false; } do_action('litespeed_purged_all_object'); $this->cls('Object_Cache')->flush(); self::debug('Flushed object cache'); if (!$silence) { $msg = __('Purge all object caches successfully.', 'litespeed-cache'); !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed($msg); } return true; } /** * Adds new public purge tags to the array of purge tags for the request. * * @since 1.1.3 * @access public * @param mixed $tags Tags to add to the list. */ public static function add($tags, $purge2 = false) { self::cls()->_add($tags, $purge2); } /** * Add tags to purge * * @since 2.2 * @access private */ private function _add($tags, $purge2 = false) { if (!is_array($tags)) { $tags = array($tags); } $tags = $this->_prepend_bid($tags); if (!array_diff($tags, $purge2 ? $this->_pub_purge2 : $this->_pub_purge)) { return; } if ($purge2) { $this->_pub_purge2 = array_merge($this->_pub_purge2, $tags); $this->_pub_purge2 = array_unique($this->_pub_purge2); } else { $this->_pub_purge = array_merge($this->_pub_purge, $tags); $this->_pub_purge = array_unique($this->_pub_purge); } self::debug('added ' . implode(',', $tags) . ($purge2 ? ' [Purge2]' : ''), 8); // Send purge header immediately $curr_built = $this->_build($purge2); if (defined('LITESPEED_CLI')) { // Can't send, already has output, need to save and wait for next run self::update_option($purge2 ? self::DB_QUEUE2 : self::DB_QUEUE, $curr_built); self::debug('CLI request, queue stored: ' . $curr_built); } else { @header($curr_built); if (defined('DOING_CRON') || defined('LITESPEED_DID_send_headers') || apply_filters('litespeed_delay_purge', false)) { self::update_option($purge2 ? self::DB_QUEUE2 : self::DB_QUEUE, $curr_built); self::debug('Output existed, queue stored: ' . $curr_built); } self::debug($curr_built); } } /** * Adds new private purge tags to the array of purge tags for the request. * * @since 1.1.3 * @access public * @param mixed $tags Tags to add to the list. */ public static function add_private($tags) { self::cls()->_add_private($tags); } /** * Add private ESI tag to purge list * * @since 3.0 * @access public */ public static function add_private_esi($tag) { self::add_private(Tag::TYPE_ESI . $tag); } /** * Add private all tag to purge list * * @since 3.0 * @access public */ public static function add_private_all() { self::add_private('*'); } /** * Add tags to private purge * * @since 2.2 * @access private */ private function _add_private($tags) { if (!is_array($tags)) { $tags = array($tags); } $tags = $this->_prepend_bid($tags); if (!array_diff($tags, $this->_priv_purge)) { return; } self::debug('added [private] ' . implode(',', $tags), 3); $this->_priv_purge = array_merge($this->_priv_purge, $tags); $this->_priv_purge = array_unique($this->_priv_purge); // Send purge header immediately @header($this->_build()); } /** * Incorporate blog_id into purge tags for multisite * * @since 4.0 * @access private * @param mixed $tags Tags to add to the list. */ private function _prepend_bid($tags) { if (in_array('*', $tags)) { return array('*'); } $curr_bid = is_multisite() ? get_current_blog_id() : ''; foreach ($tags as $k => $v) { $tags[$k] = $curr_bid . '_' . $v; } return $tags; } /** * Activate `purge related tags` for Admin QS. * * @since 1.1.3 * @access public */ public static function set_purge_related() { self::cls()->_purge_related = true; } /** * Activate `purge single url tag` for Admin QS. * * @since 1.1.3 * @access public */ public static function set_purge_single() { self::cls()->_purge_single = true; } /** * Purge frontend url * * @since 1.3 * @since 2.2 Renamed from `frontend_purge`; Access changed from public * @access private */ private function _purge_front() { if (empty($_SERVER['HTTP_REFERER'])) { exit('no referer'); } $this->purge_url($_SERVER['HTTP_REFERER']); do_action('litespeed_purged_front', $_SERVER['HTTP_REFERER']); wp_redirect($_SERVER['HTTP_REFERER']); exit(); } /** * Purge single UCSS * @since 4.7 */ private function _purge_ucss() { if (empty($_SERVER['HTTP_REFERER'])) { exit('no referer'); } $url_tag = empty($_GET['url_tag']) ? $_SERVER['HTTP_REFERER'] : $_GET['url_tag']; self::debug('Purge ucss [url_tag] ' . $url_tag); do_action('litespeed_purge_ucss', $url_tag); $this->purge_url($_SERVER['HTTP_REFERER']); wp_redirect($_SERVER['HTTP_REFERER']); exit(); } /** * Alerts LiteSpeed Web Server to purge the front page. * * @since 1.0.3 * @since 2.2 Access changed from public to private, renamed from `_purge_front` * @access private */ private function _purge_frontpage() { $this->_add(Tag::TYPE_FRONTPAGE); if (LITESPEED_SERVER_TYPE !== 'LITESPEED_SERVER_OLS') { $this->_add_private(Tag::TYPE_FRONTPAGE); } $msg = __('Notified LiteSpeed Web Server to purge the front page.', 'litespeed-cache'); !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed($msg); } /** * Alerts LiteSpeed Web Server to purge pages. * * @since 1.0.15 * @access private */ private function _purge_pages() { $this->_add(Tag::TYPE_PAGES); $msg = __('Notified LiteSpeed Web Server to purge all pages.', 'litespeed-cache'); !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed($msg); } /** * Alerts LiteSpeed Web Server to purge error pages. * * @since 1.0.14 * @access private */ private function _purge_error($type = false) { $this->_add(Tag::TYPE_HTTP); if (!$type || !in_array($type, array('403', '404', '500'))) { return; } $this->_add(Tag::TYPE_HTTP . $type); $msg = __('Notified LiteSpeed Web Server to purge error pages.', 'litespeed-cache'); !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed($msg); } /** * Callback to add purge tags if admin selects to purge selected category pages. * * @since 1.0.7 * @access public */ public function purge_cat($value) { $val = trim($value); if (empty($val)) { return; } if (preg_match('/^[a-zA-Z0-9-]+$/', $val) == 0) { self::debug("$val cat invalid"); return; } $cat = get_category_by_slug($val); if ($cat == false) { self::debug("$val cat not existed/published"); return; } self::add(Tag::TYPE_ARCHIVE_TERM . $cat->term_id); !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed(sprintf(__('Purge category %s', 'litespeed-cache'), $val)); } /** * Callback to add purge tags if admin selects to purge selected tag pages. * * @since 1.0.7 * @access public */ public function purge_tag($val) { $val = trim($val); if (empty($val)) { return; } if (preg_match('/^[a-zA-Z0-9-]+$/', $val) == 0) { self::debug("$val tag invalid"); return; } $term = get_term_by('slug', $val, 'post_tag'); if ($term == 0) { self::debug("$val tag not exist"); return; } self::add(Tag::TYPE_ARCHIVE_TERM . $term->term_id); !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed(sprintf(__('Purge tag %s', 'litespeed-cache'), $val)); } /** * Callback to add purge tags if admin selects to purge selected urls. * * @since 1.0.7 * @access public */ public function purge_url($url, $purge2 = false, $quite = false) { $val = trim($url); if (empty($val)) { return; } if (strpos($val, '<') !== false) { self::debug("$val url contains <"); return; } $val = Utility::make_relative($val); $hash = Tag::get_uri_tag($val); if ($hash === false) { self::debug("$val url invalid"); return; } self::add($hash, $purge2); !$quite && !defined('LITESPEED_PURGE_SILENT') && Admin_Display::succeed(sprintf(__('Purge url %s', 'litespeed-cache'), $val)); } /** * Purge a list of pages when selected by admin. This method will look at the post arguments to determine how and what to purge. * * @since 1.0.7 * @access public */ public function purge_list() { if (!isset($_REQUEST[Admin_Display::PURGEBYOPT_SELECT]) || !isset($_REQUEST[Admin_Display::PURGEBYOPT_LIST])) { return; } $sel = $_REQUEST[Admin_Display::PURGEBYOPT_SELECT]; $list_buf = $_REQUEST[Admin_Display::PURGEBYOPT_LIST]; if (empty($list_buf)) { return; } $list_buf = str_replace(',', "\n", $list_buf); // for cli $list = explode("\n", $list_buf); switch ($sel) { case Admin_Display::PURGEBY_CAT: $cb = 'purge_cat'; break; case Admin_Display::PURGEBY_PID: $cb = 'purge_post'; break; case Admin_Display::PURGEBY_TAG: $cb = 'purge_tag'; break; case Admin_Display::PURGEBY_URL: $cb = 'purge_url'; break; default: return; } array_map(array($this, $cb), $list); // for redirection $_GET[Admin_Display::PURGEBYOPT_SELECT] = $sel; } /** * Purge ESI * * @since 3.0 * @access public */ public static function purge_esi($tag) { self::add(Tag::TYPE_ESI . $tag); } /** * Purge a certain post type * * @since 3.0 * @access public */ public static function purge_posttype($post_type) { self::add(Tag::TYPE_ARCHIVE_POSTTYPE . $post_type); self::add($post_type); } /** * Purge all related tags to a post. * * @since 1.0.0 * @access public */ public function purge_post($pid) { $pid = intval($pid); // ignore the status we don't care if (!$pid || !in_array(get_post_status($pid), array('publish', 'trash', 'private', 'draft'))) { return; } $purge_tags = $this->_get_purge_tags_by_post($pid); if (!$purge_tags) { return; } self::add($purge_tags); if ($this->conf(self::O_CACHE_REST)) { self::add(Tag::TYPE_REST); } // $this->cls( 'Control' )->set_stale(); } /** * Hooked to the load-widgets.php action. * Attempts to purge a single widget from cache. * If no widget id is passed in, the method will attempt to find the widget id. * * @since 1.1.3 * @access public */ public static function purge_widget($widget_id = null) { if (is_null($widget_id)) { $widget_id = $_POST['widget-id']; if (is_null($widget_id)) { return; } } self::add(Tag::TYPE_WIDGET . $widget_id); self::add_private(Tag::TYPE_WIDGET . $widget_id); } /** * Hooked to the wp_update_comment_count action. * Purges the comment widget when the count is updated. * * @access public * @since 1.1.3 * @global type $wp_widget_factory */ public static function purge_comment_widget() { global $wp_widget_factory; if (!isset($wp_widget_factory->widgets['WP_Widget_Recent_Comments'])) { return; } $recent_comments = $wp_widget_factory->widgets['WP_Widget_Recent_Comments']; if (!is_null($recent_comments)) { self::add(Tag::TYPE_WIDGET . $recent_comments->id); self::add_private(Tag::TYPE_WIDGET . $recent_comments->id); } } /** * Purges feeds on comment count update. * * @since 1.0.9 * @access public */ public function purge_feeds() { if ($this->conf(self::O_CACHE_TTL_FEED) > 0) { self::add(Tag::TYPE_FEED); } } /** * Purges all private cache entries when the user logs out. * * @access public * @since 1.1.3 */ public static function purge_on_logout() { self::add_private('*'); } /** * Generate all purge tags before output * * @access private * @since 1.1.3 */ private function _finalize() { // Make sure header output only run once if (!defined('LITESPEED_DID_' . __FUNCTION__)) { define('LITESPEED_DID_' . __FUNCTION__, true); } else { return; } do_action('litespeed_purge_finalize'); // Append unique uri purge tags if Admin QS is `PURGESINGLE` if ($this->_purge_single) { $this->_pub_purge[] = Tag::build_uri_tag(); // TODO: add private tag too } // Append related purge tags if Admin QS is `PURGE` if ($this->_purge_related) { // Before this, tags need to be finalized $tags_related = Tag::output_tags(); // NOTE: need to remove the empty item `B1_` to avoid purging all $tags_related = array_filter($tags_related); if ($tags_related) { $this->_pub_purge = array_merge($this->_pub_purge, $tags_related); } } if (!empty($this->_pub_purge)) { $this->_pub_purge = array_unique($this->_pub_purge); } if (!empty($this->_priv_purge)) { $this->_priv_purge = array_unique($this->_priv_purge); } } /** * Gathers all the purge headers. * * This will collect all site wide purge tags as well as third party plugin defined purge tags. * * @since 1.1.0 * @access public * @return string the built purge header */ public static function output() { $instance = self::cls(); $instance->_finalize(); return $instance->_build(); } /** * Build the current purge headers. * * @since 1.1.5 * @access private * @return string the built purge header */ private function _build($purge2 = false) { if ($purge2) { if (empty($this->_pub_purge2)) { return; } } else { if (empty($this->_pub_purge) && empty($this->_priv_purge)) { return; } } $purge_header = ''; // Handle purge2 @since 4.4.1 if ($purge2) { $public_tags = $this->_append_prefix($this->_pub_purge2); if (empty($public_tags)) { return; } $purge_header = self::X_HEADER2 . ': public,'; if (Control::is_stale()) { $purge_header .= 'stale,'; } $purge_header .= implode(',', $public_tags); return $purge_header; } $private_prefix = self::X_HEADER . ': private,'; if (!empty($this->_pub_purge)) { $public_tags = $this->_append_prefix($this->_pub_purge); if (empty($public_tags)) { // If this ends up empty, private will also end up empty return; } $purge_header = self::X_HEADER . ': public,'; if (Control::is_stale()) { $purge_header .= 'stale,'; } $purge_header .= implode(',', $public_tags); $private_prefix = ';private,'; } // Handle priv purge tags if (!empty($this->_priv_purge)) { $private_tags = $this->_append_prefix($this->_priv_purge, true); $purge_header .= $private_prefix . implode(',', $private_tags); } return $purge_header; } /** * Append prefix to an array of purge headers * * @since 1.1.0 * @access private */ private function _append_prefix($purge_tags, $is_private = false) { $curr_bid = is_multisite() ? get_current_blog_id() : ''; if (!in_array('*', $purge_tags)) { $tags = array(); foreach ($purge_tags as $val) { $tags[] = LSWCP_TAG_PREFIX . $val; } return $tags; } // Purge All need to check if need to reset crawler or not if (!$is_private && $this->conf(self::O_CRAWLER)) { Crawler::cls()->reset_pos(); } if (defined('LSWCP_EMPTYCACHE') || $is_private) { return array('*'); } if (is_multisite() && !$this->_is_subsite_purge()) { $blogs = Activation::get_network_ids(); if (empty($blogs)) { self::debug('build_purge_headers: blog list is empty'); return ''; } $tags = array(); foreach ($blogs as $blog_id) { $tags[] = LSWCP_TAG_PREFIX . $blog_id . '_'; } return $tags; } else { return array(LSWCP_TAG_PREFIX . $curr_bid . '_'); } } /** * Check if this purge belongs to a subsite purge * * @since 4.0 */ private function _is_subsite_purge() { if (!is_multisite()) { return false; } if (is_network_admin()) { return false; } if (defined('LSWCP_EMPTYCACHE')) { return false; } // Would only use multisite and network admin except is_network_admin is false for ajax calls, which is used by wordpress updates v4.6+ if (Router::is_ajax() && (check_ajax_referer('updates', false, false) || check_ajax_referer('litespeed-purgeall-network', false, false))) { return false; } return true; } /** * Gets all the purge tags correlated with the post about to be purged. * * If the purge all pages configuration is set, all pages will be purged. * * This includes site wide post types (e.g. front page) as well as any third party plugin specific post tags. * * @since 1.0.0 * @access private */ private function _get_purge_tags_by_post($post_id) { // If this is a valid post we want to purge the post, the home page and any associated tags & cats // If not, purge everything on the site. $purge_tags = array(); if ($this->conf(self::O_PURGE_POST_ALL)) { // ignore the rest if purge all return array('*'); } // now do API hook action for post purge do_action('litespeed_api_purge_post', $post_id); // post $purge_tags[] = Tag::TYPE_POST . $post_id; $post_status = get_post_status($post_id); if (function_exists('is_post_status_viewable')) { $viewable = is_post_status_viewable($post_status); if ($viewable) { $purge_tags[] = Tag::get_uri_tag(wp_make_link_relative(get_permalink($post_id))); } } // for archive of categories|tags|custom tax global $post; $original_post = $post; $post = get_post($post_id); $post_type = $post->post_type; global $wp_widget_factory; // recent_posts $recent_posts = isset($wp_widget_factory->widgets['WP_Widget_Recent_Posts']) ? $wp_widget_factory->widgets['WP_Widget_Recent_Posts'] : null; if (!is_null($recent_posts)) { $purge_tags[] = Tag::TYPE_WIDGET . $recent_posts->id; } // get adjacent posts id as related post tag if ($post_type == 'post') { $prev_post = get_previous_post(); $next_post = get_next_post(); if (!empty($prev_post->ID)) { $purge_tags[] = Tag::TYPE_POST . $prev_post->ID; self::debug('--------purge_tags prev is: ' . $prev_post->ID); } if (!empty($next_post->ID)) { $purge_tags[] = Tag::TYPE_POST . $next_post->ID; self::debug('--------purge_tags next is: ' . $next_post->ID); } } if ($this->conf(self::O_PURGE_POST_TERM)) { $taxonomies = get_object_taxonomies($post_type); //self::debug('purge by post, check tax = ' . var_export($taxonomies, true)); foreach ($taxonomies as $tax) { $terms = get_the_terms($post_id, $tax); if (!empty($terms)) { foreach ($terms as $term) { $purge_tags[] = Tag::TYPE_ARCHIVE_TERM . $term->term_id; } } } } if ($this->conf(self::O_CACHE_TTL_FEED)) { $purge_tags[] = Tag::TYPE_FEED; } // author, for author posts and feed list if ($this->conf(self::O_PURGE_POST_AUTHOR)) { $purge_tags[] = Tag::TYPE_AUTHOR . get_post_field('post_author', $post_id); } // archive and feed of post type // todo: check if type contains space if ($this->conf(self::O_PURGE_POST_POSTTYPE)) { if (get_post_type_archive_link($post_type)) { $purge_tags[] = Tag::TYPE_ARCHIVE_POSTTYPE . $post_type; $purge_tags[] = $post_type; } } if ($this->conf(self::O_PURGE_POST_FRONTPAGE)) { $purge_tags[] = Tag::TYPE_FRONTPAGE; } if ($this->conf(self::O_PURGE_POST_HOMEPAGE)) { $purge_tags[] = Tag::TYPE_HOME; } if ($this->conf(self::O_PURGE_POST_PAGES)) { $purge_tags[] = Tag::TYPE_PAGES; } if ($this->conf(self::O_PURGE_POST_PAGES_WITH_RECENT_POSTS)) { $purge_tags[] = Tag::TYPE_PAGES_WITH_RECENT_POSTS; } // if configured to have archived by date $date = $post->post_date; $date = strtotime($date); if ($this->conf(self::O_PURGE_POST_DATE)) { $purge_tags[] = Tag::TYPE_ARCHIVE_DATE . date('Ymd', $date); } if ($this->conf(self::O_PURGE_POST_MONTH)) { $purge_tags[] = Tag::TYPE_ARCHIVE_DATE . date('Ym', $date); } if ($this->conf(self::O_PURGE_POST_YEAR)) { $purge_tags[] = Tag::TYPE_ARCHIVE_DATE . date('Y', $date); } // Set back to original post as $post_id might affecting the global $post value $post = $original_post; return array_unique($purge_tags); } /** * The dummy filter for purge all * * @since 1.1.5 * @access public * @param string $val The filter value * @return string The filter value */ public static function filter_with_purge_all($val) { self::purge_all(); return $val; } }
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