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class-wpo-cache-rules.php

<?php

if (!defined('ABSPATH')) die('No direct access allowed');

/**
 * Page caching rules and exceptions
 */

require_once dirname(__FILE__) . '/file-based-page-cache-functions.php';

if (!class_exists('WPO_Cache_Rules')) :

class WPO_Cache_Rules {

/**
	 * Cache config object
	 *
	 * @var mixed
	 */
	public $config;

/**
	 * Instance of this class
	 *
	 * @var mixed
	 */
	public static $instance;

public function __construct() {
		$this->config = WPO_Cache_Config::instance()->get();
		$this->setup_hooks();
	}

/**
	 * Setup hooks/filters
	 */
	public function setup_hooks() {
		add_action('save_post', array($this, 'purge_post_on_update'), 10, 1);
		add_action('save_post', array($this, 'purge_archive_pages_on_post_update'), 10, 1);
		add_action('wp_trash_post', array($this, 'purge_post_on_update'), 10, 1);
		add_action('comment_post', array($this, 'purge_post_on_comment'), 10, 3);
		add_action('wp_set_comment_status', array($this, 'purge_post_on_comment_status_change'), 10, 1);
		add_action('edit_terms', array($this, 'purge_related_elements_on_term_updated'), 10, 2);
		add_action('set_object_terms', array($this, 'purge_related_elements_on_post_terms_change'), 10, 6);
		add_action('wpo_cache_config_updated', array($this, 'cache_config_updated'), 10, 1);
		add_action('wp_insert_comment', array($this, 'comment_inserted'), 10, 2);
		add_action('import_start', array($this, 'remove_wp_insert_comment'));

add_action('update_option_page_on_front', array($this, 'purge_cache_on_homepage_change'));
		add_action('update_option_page_for_posts', array($this, 'purge_cache_on_blog_page_change'), 10, 2);
		add_action('update_option_show_avatars', array($this, 'purge_cache_on_avatars_change'), 10, 2);

add_action('woocommerce_variation_set_stock', array($this, 'purge_product_page'), 10, 1);
		add_action('woocommerce_product_set_stock', array($this, 'purge_product_page'), 10, 1);

/**
		 * List of hooks for which when executed, the cache will be purged
		 *
		 * @param array $actions The actions
		 */
		$actions = array(
			'after_switch_theme',
			'wp_update_nav_menu',
			'customize_save_after',
			array('wp_ajax_save-widget', 0),
			array('wp_ajax_update-widget', 0),
			'autoptimize_action_cachepurged',
			'upgrader_overwrote_package',
			'wpo_active_plugin_or_theme_updated',
			'fusion_cache_reset_after',
			'update_option_permalink_structure',
			'update_option_posts_per_page',
			'wpml_st_add_string_translation',
		);
		$purge_on_action = apply_filters('wpo_purge_cache_hooks', $actions);
		foreach ($purge_on_action as $action) {
			if (is_array($action)) {
				add_action($action[0], array($this, 'purge_cache'), $action[1]);
			} else {
				add_action($action, array($this, 'purge_cache'));
			}
		}
	}

/**
	 * Purge post cache when there is a new approved comment
	 *
	 * @param  int        $comment_id  Comment ID.
	 * @param  int|string $approved    Comment approved status. can be 0, 1 or 'spam'.
	 * @param  array      $commentdata Comment data array. Always sent be WP core, but a plugin was found that does not send it - https://wordpress.org/support/topic/critical-problems-with-version-3-0-10/
	 */
	public function purge_post_on_comment($comment_id, $approved, $commentdata = array()) {
		if (1 !== $approved) {
			return;
		}

if (!empty($this->config['enable_page_caching']) && !empty($commentdata['comment_post_ID'])) {
			$post_id = $commentdata['comment_post_ID'];

WPO_Page_Cache::delete_single_post_cache($post_id);
			WPO_Page_Cache::delete_comments_feed();
			WPO_Page_Cache::instance()->file_log("Cache for URL: {{URL}} has been purged, triggered by action: " . current_filter(), $post_id);
		}
	}

/**
	 * Every time a comment's status changes, purge it's parent posts cache
	 *
	 * @param int $comment_id Comment ID.
	 */
	public function purge_post_on_comment_status_change($comment_id) {
		if (!empty($this->config['enable_page_caching'])) {
			$comment = get_comment($comment_id);
			if (is_object($comment) && !empty($comment->comment_post_ID)) {
				WPO_Page_Cache::delete_single_post_cache($comment->comment_post_ID);
				WPO_Page_Cache::delete_comments_feed();
				WPO_Page_Cache::instance()->file_log("Cache for URL: {{URL}} has been purged, triggered by action: " . current_filter(), $comment->comment_post_ID);
			}
		}
	}

/**
	 * Action when a comment is inserted
	 *
	 * @param integer            $comment_id - The comment ID
	 * @param boolean|WP_Comment $comment    - The comment object (from WP 4.4)
	 * @return void
	 */
	public function comment_inserted($comment_id, $comment = false) {
		if ($comment && is_a($comment, 'WP_Comment')) {
			/**
			 * Filters whether to add a cookie when a comment is posted, in order to exclude the page from caching.
			 * Regular comments have the property comment_type set to ''  or 'comment'. So by default, only add the cookie in those cases.
			 *
			 * @param boolean    $add_cookie
			 * @param WP_Comment $comment
			 * @return boolean
			 */
			$add_cookie = apply_filters('wpo_add_commented_post_cookie', '' == $comment->comment_type || 'comment' == $comment->comment_type, $comment);
			if (!$add_cookie) return;

$url = get_permalink($comment->comment_post_ID);
			$url_info = wp_parse_url($url);
			setcookie('wpo_commented_post', 1, time() + WEEK_IN_SECONDS, isset($url_info['path']) ? $url_info['path'] : '/');
		}
	}

/**
	 * Comment posted cookie is not needed for imports. So remove the action
	 */
	public function remove_wp_insert_comment() {
		remove_action('wp_insert_comment', array($this, 'comment_inserted'), 10);
	}

/**
	 * Automatically purge all file based page cache on post changes
	 * We want the whole cache purged here as different parts
	 * of the site could potentially change on post updates
	 *
	 * @param Integer $post_id - WP post id
	 */
	public function purge_post_on_update($post_id) {
		$post_type = get_post_type($post_id);
		$post_type_object = get_post_type_object($post_type);

if ((defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) || 'revision' === $post_type || null === $post_type_object || !$post_type_object->public) {
			return;
		}
		$post_status = get_post_status($post_id);
		if ('publish' !== $post_status) {
			return;
		}
		
		/**
		 * Purge the whole cache if set to true, only the edited post otherwise. Default is false.
		 *
		 * @param boolean $purge_all_cache The default filter value
		 * @param integer $post_id         The saved post ID
		 */
		if (apply_filters('wpo_purge_all_cache_on_update', false, $post_id)) {
			$this->purge_cache();
		} else {
			if (apply_filters('wpo_delete_cached_homepage_on_post_update', true, $post_id)) WPO_Page_Cache::delete_homepage_cache();
			WPO_Page_Cache::delete_feed_cache();
			WPO_Page_Cache::delete_single_post_cache($post_id);
			WPO_Page_Cache::delete_post_feed_cache($post_id);
			WPO_Page_Cache::instance()->file_log("Cache for URL: {{URL}} has been purged, triggered by action: " . current_filter(), $post_id);
		}
	}

/**
	 * Purge archive pages on post update.
	 *
	 * @param integer $post_id
	 */
	public function purge_archive_pages_on_post_update($post_id) {
		$post_type = get_post_type($post_id);

if (false === $post_type) return;

if ((defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) || 'revision' === $post_type) {
			return;
		}

$post_obj = get_post_type_object($post_type);

if (null === $post_obj) return;

$post_status = get_post_status($post_id);
		if ('publish' !== $post_status) {
			return;
		}
		
		if ('post' == $post_type) {
			// delete blog page cache
			$blog_post_id = get_option('page_for_posts');
			if ($blog_post_id) {
				WPO_Page_Cache::delete_cache_by_url(get_permalink($blog_post_id), true);
				WPO_Page_Cache::instance()->file_log("Cache for blog post has been purged due to updates to post with Title: {{title}} and URL: {{URL}}, triggered by action: " . current_filter(), $post_id);
			}
		
			// delete next and previous posts cache.
			$globals_post = isset($GLOBALS['post']) ? $GLOBALS['post'] : false;
			$GLOBALS['post'] = get_post($post_id);
			$previous_post = function_exists('get_previous_post') ? get_previous_post() : false;
			$next_post = function_exists('get_next_post') ? get_next_post() : false;
			if ($globals_post) $GLOBALS['post'] = $globals_post;
			
			if ($previous_post) {
				WPO_Page_Cache::delete_cache_by_url(get_permalink($previous_post), true);
				WPO_Page_Cache::instance()->file_log("Cache for previous post (with URL: {{URL}}) adjacent to post with id: " . $post_id . " has been purged, triggered by action: " . current_filter(), $previous_post->ID);
			}
			if ($next_post) {
				WPO_Page_Cache::delete_cache_by_url(get_permalink($next_post), true);
				WPO_Page_Cache::instance()->file_log("Cache for next post (with URL: {{URL}}) adjacent to post with id: " . $post_id . " has been purged, triggered by action: " . current_filter(), $next_post->ID);
			}
			
			// delete all archive pages for post.
			$post_date = get_post_time('Y-m-j', false, $post_id);
			list($year, $month, $day) = $post_date;

$archive_links = array(
				get_year_link($year),
				get_month_link($year, $month),
				get_day_link($year, $month, $day),
			);

foreach ($archive_links as $link) {
				WPO_Page_Cache::delete_cache_by_url($link, true);
			}
			WPO_Page_Cache::instance()->file_log("Cache for all archives page associated with post_type: " . $post_type . " and Title: {{title}} have been purged, triggered by action: " . current_filter(), $post_id);
		}
		if ($post_obj->has_archive) {
			// delete archive page for custom post type.
			WPO_Page_Cache::delete_cache_by_url(get_post_type_archive_link($post_type), true);
			WPO_Page_Cache::instance()->file_log("Cache for archive page associated with post_type: " . $post_type . " and Title: {{title}} has been purged, triggered by action: " . current_filter(), $post_id);
		}
		if (post_type_supports($post_type, 'author')) {
			$author_id  = get_post_field('post_author', $post_id);
			$post_author = get_user_by('id', $author_id);
			if ($author_id && $post_author) {
				$author_url = get_author_posts_url($author_id);
				if (!empty($author_url)) {
					WPO_Page_Cache::delete_cache_by_url($author_url, true);
					WPO_Page_Cache::instance()->file_log("Cache for author page URL: " . $author_url . " associated with post_type: " . $post_type . " and Title: {{title}} has been purged, triggered by action: " . current_filter(), $post_id);
				}
			}
		}
	}

/**
	 * We use it with edit_terms action filter to purge cached elements related
	 * to updated term when term updated.
	 *
	 * @param int    $term_id  Term taxonomy ID.
	 * @param string $taxonomy Taxonomy slug.
	 */
	public function purge_related_elements_on_term_updated($term_id, $taxonomy) {
		if ('nav_menu' === $taxonomy) return;

// purge cached page for term.
		$term = get_term($term_id, $taxonomy, ARRAY_A);
		if (is_array($term)) {
			$term_permalink = get_term_link($term['term_id']);
			if (!is_wp_error($term_permalink)) {
				WPO_Page_Cache::delete_cache_by_url($term_permalink, true);
				WPO_Page_Cache::instance()->file_log("Cache for term page with URL: " . $term_permalink . "  have been purged, triggered by action: " . current_filter());
			}
		}

// get posts which belongs to updated term.
		$posts = get_posts(array(
			'numberposts'      => -1,
			'post_type'        => 'any',
			'fields'           => 'ids',
			'tax_query' => array( // phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_tax_query -- because we can't use `get_objects_in_term` for `OR` relationships
				'relation' => 'OR',
				array(
					'taxonomy' => $taxonomy,
					'field'    => 'term_id',
					'terms'    => $term_id,
				)
			),
		));

if (!empty($posts)) {
			foreach ($posts as $post_id) {
				WPO_Page_Cache::delete_single_post_cache($post_id);
			}
			$term_permalink = get_term_link($term_id);
			WPO_Page_Cache::instance()->file_log("Cache for associated posts for term with URL: "
				. $term_permalink. " have been purged, triggered by action: " . current_filter());
		}
	}

/**
	 * Triggered by set_object_terms action. Used to clear all the terms archives a post belongs to or belonged to before being saved.
	 *
	 * @param int    $object_id  Object ID.
	 * @param array  $terms      An array of object terms.
	 * @param array  $tt_ids     An array of term taxonomy IDs.
	 * @param string $taxonomy   Taxonomy slug.
	 * @param bool   $append     Whether to append new terms to the old terms.
	 * @param array  $old_tt_ids Old array of term taxonomy IDs.
	 */
	public function purge_related_elements_on_post_terms_change($object_id, $terms, $tt_ids, $taxonomy, $append, $old_tt_ids) {

$post_type = get_post_type($object_id);

if ((defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) || 'revision' === $post_type || 'product_type' === $taxonomy || 'action-group' === $taxonomy) {
			return;
		}

/**
		 * Adds a way to exit the purge of terms permalink using the provided parameters.
		 *
		 * @param bool   $purge      The value filtered, whether or not to purge the related elements
		 * @param int    $object_id  Object ID.
		 * @param array  $terms      An array of object terms.
		 * @param array  $tt_ids     An array of term taxonomy IDs.
		 * @param string $taxonomy   Taxonomy slug.
		 * @param bool   $append     Whether to append new terms to the old terms.
		 * @param array  $old_tt_ids Old array of term taxonomy IDs.
		 * @default true
		 * @return boolean
		 */
		if (!apply_filters('wpo_cache_purge_related_elements_on_post_terms_change', true, $object_id, $terms, $tt_ids, $taxonomy, $append, $old_tt_ids)) return;

// get all affected terms.
		$affected_terms_ids = array_unique(array_merge($tt_ids, $old_tt_ids));

if (!empty($affected_terms_ids)) {
			// walk through all changed terms and purge cached pages for them.
			$is_cache_purged = false;
			foreach ($affected_terms_ids as $tt_id) {
				$term = get_term($tt_id, $taxonomy, ARRAY_A);
				if (!is_array($term)) continue;

$term_permalink = get_term_link($term['term_id']);
				if (!is_wp_error($term_permalink)) {
					$url = wp_parse_url($term_permalink);
					// Check if the permalink contains a valid path, to avoid deleting the whole cache.
					if (!isset($url['path']) || '/' === $url['path']) return;
					WPO_Page_Cache::delete_cache_by_url($term_permalink, true);
					$is_cache_purged = true;
				}
			}
			if ($is_cache_purged) WPO_Page_Cache::instance()->file_log("Cache for multiple term taxonomy have been purged due to post terms update, triggered by action: " . current_filter());
		}
	}

/**
	 * Purge product page upon stock update
	 */
	public function purge_product_page($product_with_stock) {
		if (!empty($product_with_stock->get_id())) {
			WPO_Page_Cache::delete_single_post_cache($product_with_stock->get_id());
			WPO_Page_Cache::instance()->file_log("Cache for URL: {{URL}} has been purged, triggered by action: " . current_filter(), $product_with_stock->get_id());
		}
	}

/**
	 * Purges relevant caches when the "Homepage" option is changed.
	 *
	 * This method is also triggered when the "Homepage displays" option is changed
	 * from a static page to latest posts. In this scenario, the "Homepage" option value
	 * becomes zero. Since the cache for the front-page is already purged here, there's no need
	 * to purge the cache using the`update_option_show_on_front` hook.
	 *
	 * @param string $old_value The old value of the "Homepage" option.
	 */
	public function purge_cache_on_homepage_change($old_value) {
		if ($old_value) {
			WPO_Page_Cache::delete_cache_by_url(get_permalink($old_value));
		}
		WPO_Page_Cache::delete_homepage_cache();
		WPO_Page_Cache::instance()->file_log("Cache for homepage has been purged due to change in the Homepage displays options, triggered by action: " . current_filter());
	}

/**
	 * Purges relevant caches when the "Posts page" option is changed.
	 *
	 * @param string $old_value The old value of the "Posts page" option.
	 * @param string $value     The new value of the "Posts page" option.
	 */
	public function purge_cache_on_blog_page_change($old_value, $value) {
		if ($old_value) {
			WPO_Page_Cache::delete_cache_by_url(get_permalink($old_value));
		}
		if ($value) {
			WPO_Page_Cache::delete_cache_by_url(get_permalink($value));
		}
		WPO_Page_Cache::instance()->file_log("Cache for homepage has been purged due to changes in the Posts page options, triggered by action: " . current_filter());
	}
	
	/**
	 * Purges cache if the avatars option is changed
	 *
	 * @param boolean $old_value
	 * @param boolean $value
	 */
	public function purge_cache_on_avatars_change(bool $old_value, ?bool $value): void {
		if ($old_value !== $value) {
			$this->purge_cache();
		}
	}

/**
	 * Clears the cache.
	 */
	public function purge_cache() {
		if (!empty($this->config['enable_page_caching'])) {
			wpo_cache_flush();
			WPO_Page_Cache::instance()->file_log("Full Cache Purge triggered by action: " . current_filter());
		}
	}

/**
	 * Triggered by wpo_cache_config_updated.
	 *
	 * @param array $config
	 */
	public function cache_config_updated($config) {
		// delete front page form cache if defined in the settings
		if (is_array($config['cache_exception_urls']) && in_array('/', $config['cache_exception_urls'])) {
			WPO_Page_Cache::delete_cache_by_url(home_url());
			WPO_Page_Cache::instance()->file_log("Cache for homepage has been purged due to changes in the cache configurations, triggered by action: " . current_filter());
		}
	}

/**
	 * Returns an instance of the current class, creates one if it doesn't exist
	 *
	 * @return object
	 */
	public static function instance() {
		if (empty(self::$instance)) {
			self::$instance = new self();
		}
		return self::$instance;
	}
}

endif;

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	rxflqrzo/rxflqrzo	0755	2025-08-01 08:08:32
..	dir	-	rxflqrzo/rxflqrzo	0755	2025-08-01 08:08:32
class-wp-optimize-cache-commands.php	text/x-php	12.18 KB	rxflqrzo/rxflqrzo	0644	2025-07-31 05:08:32
class-wp-optimize-detect-cache-plugins.php	text/x-php	2.27 KB	rxflqrzo/rxflqrzo	0644	2022-06-03 10:20:18
class-wp-optimize-page-cache-preloader.php	text/x-php	22.95 KB	rxflqrzo/rxflqrzo	0644	2025-07-31 05:08:32
class-wpo-cache-config.php	text/x-php	8.33 KB	rxflqrzo/rxflqrzo	0644	2025-07-31 05:08:32
class-wpo-cache-rules.php	text/x-php	17.3 KB	rxflqrzo/rxflqrzo	0644	2025-07-31 05:08:32
class-wpo-load-url-task.php	text/x-php	1.4 KB	rxflqrzo/rxflqrzo	0644	2022-06-03 10:20:18
class-wpo-page-cache.php	text/x-php	56.43 KB	rxflqrzo/rxflqrzo	0644	2025-07-31 05:08:32
file-based-page-cache-functions.php	text/x-php	56.91 KB	rxflqrzo/rxflqrzo	0644	2025-07-31 05:08:32
file-based-page-cache.php	text/x-php	638 B	rxflqrzo/rxflqrzo	0644	2025-05-01 02:24:58

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