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<?php |
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|
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if (!defined('ABSPATH')) die('No direct access allowed'); |
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|
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/** |
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* Page caching rules and exceptions |
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*/ |
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|
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require_once dirname(__FILE__) . '/file-based-page-cache-functions.php'; |
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|
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if (!class_exists('WPO_Cache_Rules')) : |
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|
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class WPO_Cache_Rules { |
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|
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/** |
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* Cache config object |
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* |
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* @var mixed |
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*/ |
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public $config; |
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|
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/** |
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* Instance of this class |
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* |
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* @var mixed |
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*/ |
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public static $instance; |
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|
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public function __construct() { |
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$this->config = WPO_Cache_Config::instance()->get(); |
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$this->setup_hooks(); |
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} |
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|
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/** |
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* Setup hooks/filters |
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*/ |
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public function setup_hooks() { |
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add_action('save_post', array($this, 'purge_post_on_update'), 10, 1); |
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add_action('save_post', array($this, 'purge_archive_pages_on_post_update'), 10, 1); |
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add_action('wp_trash_post', array($this, 'purge_post_on_update'), 10, 1); |
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add_action('comment_post', array($this, 'purge_post_on_comment'), 10, 3); |
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add_action('wp_set_comment_status', array($this, 'purge_post_on_comment_status_change'), 10, 1); |
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add_action('edit_terms', array($this, 'purge_related_elements_on_term_updated'), 10, 2); |
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add_action('set_object_terms', array($this, 'purge_related_elements_on_post_terms_change'), 10, 6); |
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add_action('wpo_cache_config_updated', array($this, 'cache_config_updated'), 10, 1); |
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add_action('wp_insert_comment', array($this, 'comment_inserted'), 10, 2); |
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add_action('import_start', array($this, 'remove_wp_insert_comment')); |
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|
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add_action('update_option_page_on_front', array($this, 'purge_cache_on_homepage_change')); |
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add_action('update_option_page_for_posts', array($this, 'purge_cache_on_blog_page_change'), 10, 2); |
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|
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add_action('woocommerce_variation_set_stock', array($this, 'purge_product_page'), 10, 1); |
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add_action('woocommerce_product_set_stock', array($this, 'purge_product_page'), 10, 1); |
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|
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/** |
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* List of hooks for which when executed, the cache will be purged |
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* |
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* @param array $actions The actions |
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*/ |
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$actions = array( |
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'after_switch_theme', |
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'wp_update_nav_menu', |
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'customize_save_after', |
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array('wp_ajax_save-widget', 0), |
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array('wp_ajax_update-widget', 0), |
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'autoptimize_action_cachepurged', |
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'upgrader_overwrote_package', |
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'wpo_active_plugin_or_theme_updated', |
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'fusion_cache_reset_after', |
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'update_option_permalink_structure', |
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'update_option_posts_per_page', |
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'wpml_st_add_string_translation', |
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); |
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$purge_on_action = apply_filters('wpo_purge_cache_hooks', $actions); |
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foreach ($purge_on_action as $action) { |
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if (is_array($action)) { |
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add_action($action[0], array($this, 'purge_cache'), $action[1]); |
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} else { |
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add_action($action, array($this, 'purge_cache')); |
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} |
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} |
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} |
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|
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/** |
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* Purge post cache when there is a new approved comment |
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* |
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* @param int $comment_id Comment ID. |
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* @param int|string $approved Comment approved status. can be 0, 1 or 'spam'. |
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* @param array $commentdata Comment data array. Always sent be WP core, but a plugin was found that does not send it - https://wordpress.org/support/topic/critical-problems-with-version-3-0-10/ |
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*/ |
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public function purge_post_on_comment($comment_id, $approved, $commentdata = array()) { |
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if (1 !== $approved) { |
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return; |
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} |
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|
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if (!empty($this->config['enable_page_caching']) && !empty($commentdata['comment_post_ID'])) { |
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$post_id = $commentdata['comment_post_ID']; |
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|
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WPO_Page_Cache::delete_single_post_cache($post_id); |
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WPO_Page_Cache::delete_comments_feed(); |
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} |
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} |
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|
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/** |
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* Every time a comment's status changes, purge it's parent posts cache |
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* |
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* @param int $comment_id Comment ID. |
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*/ |
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public function purge_post_on_comment_status_change($comment_id) { |
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if (!empty($this->config['enable_page_caching'])) { |
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$comment = get_comment($comment_id); |
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if (is_object($comment) && !empty($comment->comment_post_ID)) { |
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WPO_Page_Cache::delete_single_post_cache($comment->comment_post_ID); |
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WPO_Page_Cache::delete_comments_feed(); |
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} |
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} |
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} |
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|
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/** |
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* Action when a comment is inserted |
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* |
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* @param integer $comment_id - The comment ID |
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* @param boolean|WP_Comment $comment - The comment object (from WP 4.4) |
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* @return void |
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*/ |
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public function comment_inserted($comment_id, $comment = false) { |
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if ($comment && is_a($comment, 'WP_Comment')) { |
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/** |
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* Filters whether to add a cookie when a comment is posted, in order to exclude the page from caching. |
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* Regular comments have the property comment_type set to '' or 'comment'. So by default, only add the cookie in those cases. |
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* |
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* @param boolean $add_cookie |
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* @param WP_Comment $comment |
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* @return boolean |
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*/ |
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$add_cookie = apply_filters('wpo_add_commented_post_cookie', '' == $comment->comment_type || 'comment' == $comment->comment_type, $comment); |
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if (!$add_cookie) return; |
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|
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$url = get_permalink($comment->comment_post_ID); |
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$url_info = parse_url($url); |
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setcookie('wpo_commented_post', 1, time() + WEEK_IN_SECONDS, isset($url_info['path']) ? $url_info['path'] : '/'); |
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} |
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} |
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|
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/** |
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* Comment posted cookie is not needed for imports. So remove the action |
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*/ |
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public function remove_wp_insert_comment() { |
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remove_action('wp_insert_comment', array($this, 'comment_inserted'), 10); |
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} |
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|
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/** |
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* Automatically purge all file based page cache on post changes |
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* We want the whole cache purged here as different parts |
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* of the site could potentially change on post updates |
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* |
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* @param Integer $post_id - WP post id |
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*/ |
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public function purge_post_on_update($post_id) { |
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$post_type = get_post_type($post_id); |
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$post_type_object = get_post_type_object($post_type); |
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|
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if ((defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) || 'revision' === $post_type || null === $post_type_object || !$post_type_object->public) { |
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return; |
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} |
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|
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/** |
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* Purge the whole cache if set to true, only the edited post otherwise. Default is false. |
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* |
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* @param boolean $purge_all_cache The default filter value |
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* @param integer $post_id The saved post ID |
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*/ |
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if (apply_filters('wpo_purge_all_cache_on_update', false, $post_id)) { |
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$this->purge_cache(); |
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return; |
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} else { |
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if (apply_filters('wpo_delete_cached_homepage_on_post_update', true, $post_id)) WPO_Page_Cache::delete_homepage_cache(); |
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WPO_Page_Cache::delete_feed_cache(); |
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WPO_Page_Cache::delete_single_post_cache($post_id); |
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WPO_Page_Cache::delete_sitemap_cache(); |
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WPO_Page_Cache::delete_post_feed_cache($post_id); |
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} |
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} |
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|
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/** |
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* Purge archive pages on post update. |
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* |
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* @param integer $post_id |
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*/ |
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public function purge_archive_pages_on_post_update($post_id) { |
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$post_type = get_post_type($post_id); |
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|
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if (false === $post_type) return; |
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|
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if ((defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) || 'revision' === $post_type) { |
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return; |
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} |
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|
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$post_obj = get_post_type_object($post_type); |
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|
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if (null === $post_obj) return; |
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|
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if ('post' == $post_type) { |
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// delete blog page cache |
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$blog_post_id = get_option('page_for_posts'); |
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if ($blog_post_id) { |
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WPO_Page_Cache::delete_cache_by_url(get_permalink($blog_post_id), true); |
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} |
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|
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// delete next and previous posts cache. |
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$globals_post = isset($GLOBALS['post']) ? $GLOBALS['post'] : false; |
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$GLOBALS['post'] = get_post($post_id); |
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$previous_post = function_exists('get_previous_post') ? get_previous_post() : false; |
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$next_post = function_exists('get_next_post') ? get_next_post() : false; |
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if ($globals_post) $GLOBALS['post'] = $globals_post; |
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|
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if ($previous_post) WPO_Page_Cache::delete_cache_by_url(get_permalink($previous_post), true); |
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if ($next_post) WPO_Page_Cache::delete_cache_by_url(get_permalink($next_post), true); |
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|
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// delete all archive pages for post. |
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$post_date = get_post_time('Y-m-j', false, $post_id); |
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list($year, $month, $day) = $post_date; |
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|
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$archive_links = array( |
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get_year_link($year), |
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get_month_link($year, $month), |
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get_day_link($year, $month, $day), |
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); |
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|
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foreach ($archive_links as $link) { |
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WPO_Page_Cache::delete_cache_by_url($link, true); |
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} |
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} elseif ($post_obj->has_archive) { |
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// delete archive page for custom post type. |
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WPO_Page_Cache::delete_cache_by_url(get_post_type_archive_link($post_type), true); |
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} |
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|
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} |
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|
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/** |
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* We use it with edit_terms action filter to purge cached elements related |
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* to updated term when term updated. |
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* |
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* @param int $term_id Term taxonomy ID. |
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* @param string $taxonomy Taxonomy slug. |
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*/ |
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public function purge_related_elements_on_term_updated($term_id, $taxonomy) { |
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if ('nav_menu' === $taxonomy) return; |
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|
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// purge cached page for term. |
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$term = get_term($term_id, $taxonomy, ARRAY_A); |
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if (is_array($term)) { |
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$term_permalink = get_term_link($term['term_id']); |
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if (!is_wp_error($term_permalink)) { |
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WPO_Page_Cache::delete_cache_by_url($term_permalink, true); |
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} |
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} |
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|
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// get posts which belongs to updated term. |
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$posts = get_posts(array( |
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'numberposts' => -1, |
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'post_type' => 'any', |
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'fields' => 'ids', |
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'tax_query' => array( |
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'relation' => 'OR', |
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array( |
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'taxonomy' => $taxonomy, |
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'field' => 'term_id', |
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'terms' => $term_id, |
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) |
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), |
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)); |
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|
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if (!empty($posts)) { |
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foreach ($posts as $post_id) { |
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WPO_Page_Cache::delete_single_post_cache($post_id); |
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} |
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} |
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} |
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|
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/** |
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* Triggered by set_object_terms action. Used to clear all the terms archives a post belongs to or belonged to before being saved. |
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* |
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* @param int $object_id Object ID. |
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* @param array $terms An array of object terms. |
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* @param array $tt_ids An array of term taxonomy IDs. |
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* @param string $taxonomy Taxonomy slug. |
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* @param bool $append Whether to append new terms to the old terms. |
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* @param array $old_tt_ids Old array of term taxonomy IDs. |
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*/ |
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public function purge_related_elements_on_post_terms_change($object_id, $terms, $tt_ids, $taxonomy, $append, $old_tt_ids) { |
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|
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$post_type = get_post_type($object_id); |
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|
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if ((defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) || 'revision' === $post_type || 'product_type' === $taxonomy || 'action-group' === $taxonomy) { |
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return; |
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} |
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|
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/** |
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* Adds a way to exit the purge of terms permalink using the provided parameters. |
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* |
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* @param bool $purge The value filtered, whether or not to purge the related elements |
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* @param int $object_id Object ID. |
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* @param array $terms An array of object terms. |
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* @param array $tt_ids An array of term taxonomy IDs. |
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* @param string $taxonomy Taxonomy slug. |
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* @param bool $append Whether to append new terms to the old terms. |
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* @param array $old_tt_ids Old array of term taxonomy IDs. |
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* @default true |
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* @return boolean |
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*/ |
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if (!apply_filters('wpo_cache_purge_related_elements_on_post_terms_change', true, $object_id, $terms, $tt_ids, $taxonomy, $append, $old_tt_ids)) return; |
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|
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// get all affected terms. |
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$affected_terms_ids = array_unique(array_merge($tt_ids, $old_tt_ids)); |
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|
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if (!empty($affected_terms_ids)) { |
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// walk through all changed terms and purge cached pages for them. |
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foreach ($affected_terms_ids as $tt_id) { |
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$term = get_term($tt_id, $taxonomy, ARRAY_A); |
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if (!is_array($term)) continue; |
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|
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$term_permalink = get_term_link($term['term_id']); |
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if (!is_wp_error($term_permalink)) { |
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$url = parse_url($term_permalink); |
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// Check if the permalink contains a valid path, to avoid deleting the whole cache. |
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if (!isset($url['path']) || '/' === $url['path']) return; |
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WPO_Page_Cache::delete_cache_by_url($term_permalink, true); |
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} |
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} |
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} |
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} |
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|
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/** |
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* Purge product page upon stock update |
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*/ |
| 337 |
public function purge_product_page($product_with_stock) { |
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if (!empty($product_with_stock->get_id())) { |
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WPO_Page_Cache::delete_single_post_cache($product_with_stock->get_id()); |
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} |
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} |
| 342 |
|
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/** |
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* Purges relevant caches when the "Homepage" option is changed. |
| 345 |
* |
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* This method is also triggered when the "Homepage displays" option is changed |
| 347 |
* from a static page to latest posts. In this scenario, the "Homepage" option value |
| 348 |
* becomes zero. Since the cache for the front-page is already purged here, there's no need |
| 349 |
* to purge the cache using the`update_option_show_on_front` hook. |
| 350 |
* |
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* @param string $old_value The old value of the "Homepage" option. |
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*/ |
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public function purge_cache_on_homepage_change($old_value) { |
| 354 |
if ($old_value) { |
| 355 |
WPO_Page_Cache::delete_cache_by_url(get_permalink($old_value)); |
| 356 |
} |
| 357 |
WPO_Page_Cache::delete_homepage_cache(); |
| 358 |
} |
| 359 |
|
| 360 |
/** |
| 361 |
* Purges relevant caches when the "Posts page" option is changed. |
| 362 |
* |
| 363 |
* @param string $old_value The old value of the "Posts page" option. |
| 364 |
* @param string $value The new value of the "Posts page" option. |
| 365 |
*/ |
| 366 |
public function purge_cache_on_blog_page_change($old_value, $value) { |
| 367 |
if ($old_value) { |
| 368 |
WPO_Page_Cache::delete_cache_by_url(get_permalink($old_value)); |
| 369 |
} |
| 370 |
if ($value) { |
| 371 |
WPO_Page_Cache::delete_cache_by_url(get_permalink($value)); |
| 372 |
} |
| 373 |
} |
| 374 |
|
| 375 |
/** |
| 376 |
* Clears the cache. |
| 377 |
*/ |
| 378 |
public function purge_cache() { |
| 379 |
if (!empty($this->config['enable_page_caching'])) { |
| 380 |
wpo_cache_flush(); |
| 381 |
} |
| 382 |
} |
| 383 |
|
| 384 |
/** |
| 385 |
* Triggered by wpo_cache_config_updated. |
| 386 |
* |
| 387 |
* @param array $config |
| 388 |
*/ |
| 389 |
public function cache_config_updated($config) { |
| 390 |
// delete front page form cache if defined in the settings |
| 391 |
if (is_array($config['cache_exception_urls']) && in_array('/', $config['cache_exception_urls'])) { |
| 392 |
WPO_Page_Cache::delete_cache_by_url(home_url()); |
| 393 |
} |
| 394 |
} |
| 395 |
|
| 396 |
/** |
| 397 |
* Returns an instance of the current class, creates one if it doesn't exist |
| 398 |
* |
| 399 |
* @return object |
| 400 |
*/ |
| 401 |
public static function instance() { |
| 402 |
if (empty(self::$instance)) { |
| 403 |
self::$instance = new self(); |
| 404 |
} |
| 405 |
return self::$instance; |
| 406 |
} |
| 407 |
} |
| 408 |
|
| 409 |
endif; |
| 410 |
|
