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✏️ Editing: Purge.php

<?php

namespace WP_Rocket\Engine\Cache;

use DirectoryIterator;
use Exception;
use WP_Term;
use WP_Post;

/**
 * Cache Purge handling class
 */
class Purge {
	/**
	 * Filesystem instance
	 *
	 * @var WP_Filesystem_Direct
	 */
	private $filesystem;

/**
	 * Initialize the class
	 *
	 * @param WP_Filesystem_Direct $filesystem Filesystem instance.
	 */
	public function __construct( $filesystem ) {
		$this->filesystem = $filesystem;
	}

/**
	 * Purges cache for the dates archives of a post
	 *
	 * @param WP_Post $post Post object.
	 * @return void
	 */
	public function purge_dates_archives( $post ) {
		foreach ( $this->get_dates_archives( $post ) as $url ) {
			$this->purge_url( $url, true );
		}
	}

/**
	 * Purge URL cache.
	 *
	 * @param string  $url        URL to be purged.
	 * @param boolean $pagination Purge also pagination.
	 * @return void
	 */
	private function purge_url( $url, $pagination = false ) {
		global $wp_rewrite;

$parsed_url = $this->parse_url( $url );

foreach ( _rocket_get_cache_dirs( $parsed_url['host'] ) as $dir ) {
			$path = $dir . $parsed_url['path'];

if ( ! $this->filesystem->exists( $path ) ) {
				continue;
			}

foreach ( $this->get_iterator( $path ) as $item ) {
				if ( $item->isFile() ) {
					$this->filesystem->delete( $item->getPathname() );
				}
			}

if ( $pagination ) {
				$this->maybe_remove_dir( $path . DIRECTORY_SEPARATOR . $wp_rewrite->pagination_base );
			}
		}
	}

/**
	 * Gets the dates archives URLs for the provided post
	 *
	 * @param WP_Post $post Post object.
	 * @return array
	 */
	private function get_dates_archives( $post ) {
		$time = get_the_time( 'Y-m-d', $post );

if ( empty( $time ) ) {
			return [];
		}

$date = explode( '-', $time );
		$urls = [
			get_year_link( $date[0] ),
			get_month_link( $date[0], $date[1] ),
			get_day_link( $date[0], $date[1], $date[2] ),
		];

/**
		 * Filter the list of dates URLs.
		 *
		 * @since 1.1.0
		 *
		 * @param array $urls List of dates URLs.
		*/
		return (array) apply_filters( 'rocket_post_dates_urls', $urls );
	}

/**
	 * Parses URL and return the parts array
	 *
	 * @since 3.6.1
	 *
	 * @param string $url URL to parse.
	 * @return array
	 */
	private function parse_url( $url ) {
		$parsed_url = get_rocket_parse_url( $url );

/** This filter is documented in inc/front/htaccess.php */
		if ( apply_filters( 'rocket_url_no_dots', false ) ) {
			$parsed_url['host'] = str_replace( '.', '_', $parsed_url['host'] );
		}

return $parsed_url;
	}

/**
	 * Gets the iterator for the given path
	 *
	 * @since 3.6.1
	 *
	 * @param string $path Absolute path.
	 * @return DirectoryIterator|array
	 */
	private function get_iterator( $path ) {
		try {
			$iterator = new DirectoryIterator( $path );
		} catch ( Exception $e ) {
			// No action required, as logging not enabled.
			$iterator = [];
		}

return $iterator;
	}

/**
	 * Recursively remove the provided directory and its content
	 *
	 * @since 3.6.1
	 *
	 * @param string $dir Absolute path for the directory.
	 * @return void
	 */
	private function maybe_remove_dir( $dir ) {
		if ( $this->filesystem->is_dir( $dir ) ) {
			rocket_rrmdir( $dir, [], $this->filesystem );
		}
	}

/**
	 * Purge all terms archives urls associated to a specific post.
	 *
	 * @since 3.6.1
	 *
	 * @param WP_Post $post Post object.
	 */
	public function purge_post_terms_urls( WP_Post $post ) {
		foreach ( $this->get_post_terms_urls( $post ) as $url ) {
			$this->purge_url( $url );
		}

}

/**
	 * Get all terms archives urls associated to a specific post.
	 *
	 * @since 3.6.1
	 *
	 * @param WP_Post $post Post object.
	 *
	 * @return array $urls    List of taxonomies URLs
	 */
	private function get_post_terms_urls( WP_Post $post ) {
		$urls       = [];
		$taxonomies = get_object_taxonomies( get_post_type( $post->ID ), 'objects' );

foreach ( $taxonomies as $taxonomy ) {
			if ( ! $taxonomy->public || 'product_shipping_class' === $taxonomy->name ) {
				continue;
			}

// Get the terms related to post.
			$terms = get_the_terms( $post->ID, $taxonomy->name );

if ( empty( $terms ) || is_wp_error( $terms ) ) {
				continue;
			}
			foreach ( $terms as $term ) {
				$term_url = get_term_link( $term->slug, $taxonomy->name );
				if ( ! is_wp_error( $term_url ) ) {
					$urls[] = $term_url;
				}
				if ( ! is_taxonomy_hierarchical( $taxonomy->name ) ) {
					continue;
				}
				$ancestors = (array) get_ancestors( $term->term_id, $taxonomy->name );
				foreach ( $ancestors as $ancestor ) {
					$ancestor_object = get_term( $ancestor, $taxonomy->name );
					if ( ! $ancestor_object instanceof WP_Term ) {
						continue;
					}
					$ancestor_term_url = get_term_link( $ancestor_object->slug, $taxonomy->name );
					if ( ! is_wp_error( $ancestor_term_url ) ) {
						$urls[] = $ancestor_term_url;
					}
				}
			}
		}
		/**
		 * Filter the list of taxonomies URLs
		 *
		 * @since 1.1.0
		 *
		 * @param array $urls List of taxonomies URLs
		*/
		return apply_filters( 'rocket_post_terms_urls', $urls );
	}
}

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