﻿PK       ! �E��  �    class-wp-sitemaps-registry.phpnu �[���        <?php
/**
 * Sitemaps: WP_Sitemaps_Registry class
 *
 * Handles registering sitemap providers.
 *
 * @package WordPress
 * @subpackage Sitemaps
 * @since 5.5.0
 */

/**
 * Class WP_Sitemaps_Registry.
 *
 * @since 5.5.0
 */
#[AllowDynamicProperties]
class WP_Sitemaps_Registry {
	/**
	 * Registered sitemap providers.
	 *
	 * @since 5.5.0
	 *
	 * @var WP_Sitemaps_Provider[] Array of registered sitemap providers.
	 */
	private $providers = array();

	/**
	 * Adds a new sitemap provider.
	 *
	 * @since 5.5.0
	 *
	 * @param string               $name     Name of the sitemap provider.
	 * @param WP_Sitemaps_Provider $provider Instance of a WP_Sitemaps_Provider.
	 * @return bool Whether the provider was added successfully.
	 */
	public function add_provider( $name, WP_Sitemaps_Provider $provider ) {
		if ( isset( $this->providers[ $name ] ) ) {
			return false;
		}

		/**
		 * Filters the sitemap provider before it is added.
		 *
		 * @since 5.5.0
		 *
		 * @param WP_Sitemaps_Provider $provider Instance of a WP_Sitemaps_Provider.
		 * @param string               $name     Name of the sitemap provider.
		 */
		$provider = apply_filters( 'wp_sitemaps_add_provider', $provider, $name );
		if ( ! $provider instanceof WP_Sitemaps_Provider ) {
			return false;
		}

		$this->providers[ $name ] = $provider;

		return true;
	}

	/**
	 * Returns a single registered sitemap provider.
	 *
	 * @since 5.5.0
	 *
	 * @param string $name Sitemap provider name.
	 * @return WP_Sitemaps_Provider|null Sitemap provider if it exists, null otherwise.
	 */
	public function get_provider( $name ) {
		if ( ! is_string( $name ) || ! isset( $this->providers[ $name ] ) ) {
			return null;
		}

		return $this->providers[ $name ];
	}

	/**
	 * Returns all registered sitemap providers.
	 *
	 * @since 5.5.0
	 *
	 * @return WP_Sitemaps_Provider[] Array of sitemap providers.
	 */
	public function get_providers() {
		return $this->providers;
	}
}
PK       ! ��rU  U  %  providers/class-wp-sitemaps-posts.phpnu �[���        <?php
/**
 * Sitemaps: WP_Sitemaps_Posts class
 *
 * Builds the sitemaps for the 'post' object type.
 *
 * @package WordPress
 * @subpackage Sitemaps
 * @since 5.5.0
 */

/**
 * Posts XML sitemap provider.
 *
 * @since 5.5.0
 */
class WP_Sitemaps_Posts extends WP_Sitemaps_Provider {
	/**
	 * WP_Sitemaps_Posts constructor.
	 *
	 * @since 5.5.0
	 */
	public function __construct() {
		$this->name        = 'posts';
		$this->object_type = 'post';
	}

	/**
	 * Returns the public post types, which excludes nav_items and similar types.
	 * Attachments are also excluded. This includes custom post types with public = true.
	 *
	 * @since 5.5.0
	 *
	 * @return WP_Post_Type[] Array of registered post type objects keyed by their name.
	 */
	public function get_object_subtypes() {
		$post_types = get_post_types( array( 'public' => true ), 'objects' );
		unset( $post_types['attachment'] );

		$post_types = array_filter( $post_types, 'is_post_type_viewable' );

		/**
		 * Filters the list of post object sub types available within the sitemap.
		 *
		 * @since 5.5.0
		 *
		 * @param WP_Post_Type[] $post_types Array of registered post type objects keyed by their name.
		 */
		return apply_filters( 'wp_sitemaps_post_types', $post_types );
	}

	/**
	 * Gets a URL list for a post type sitemap.
	 *
	 * @since 5.5.0
	 * @since 5.9.0 Renamed `$post_type` to `$object_subtype` to match parent class
	 *              for PHP 8 named parameter support.
	 *
	 * @param int    $page_num       Page of results.
	 * @param string $object_subtype Optional. Post type name. Default empty.
	 *
	 * @return array[] Array of URL information for a sitemap.
	 */
	public function get_url_list( $page_num, $object_subtype = '' ) {
		// Restores the more descriptive, specific name for use within this method.
		$post_type = $object_subtype;

		// Bail early if the queried post type is not supported.
		$supported_types = $this->get_object_subtypes();

		if ( ! isset( $supported_types[ $post_type ] ) ) {
			return array();
		}

		/**
		 * Filters the posts URL list before it is generated.
		 *
		 * Returning a non-null value will effectively short-circuit the generation,
		 * returning that value instead.
		 *
		 * @since 5.5.0
		 *
		 * @param array[]|null $url_list  The URL list. Default null.
		 * @param string       $post_type Post type name.
		 * @param int          $page_num  Page of results.
		 */
		$url_list = apply_filters(
			'wp_sitemaps_posts_pre_url_list',
			null,
			$post_type,
			$page_num
		);

		if ( null !== $url_list ) {
			return $url_list;
		}

		$args          = $this->get_posts_query_args( $post_type );
		$args['paged'] = $page_num;

		$query = new WP_Query( $args );

		$url_list = array();

		/*
		 * Add a URL for the homepage in the pages sitemap.
		 * Shows only on the first page if the reading settings are set to display latest posts.
		 */
		if ( 'page' === $post_type && 1 === $page_num && 'posts' === get_option( 'show_on_front' ) ) {
			// Extract the data needed for home URL to add to the array.
			$sitemap_entry = array(
				'loc' => home_url( '/' ),
			);

			/*
			 * Get the most recent posts displayed on the homepage,
			 * and then sort them by their modified date to find
			 * the date the homepage was approximately last updated.
			 */
			$latest_posts = new WP_Query(
				array(
					'post_type'              => 'post',
					'post_status'            => 'publish',
					'orderby'                => 'date',
					'order'                  => 'DESC',
					'no_found_rows'          => true,
					'update_post_meta_cache' => false,
					'update_post_term_cache' => false,
				)
			);

			if ( ! empty( $latest_posts->posts ) ) {
				$posts = wp_list_sort( $latest_posts->posts, 'post_modified_gmt', 'DESC' );

				$sitemap_entry['lastmod'] = wp_date( DATE_W3C, strtotime( $posts[0]->post_modified_gmt ) );
			}

			/**
			 * Filters the sitemap entry for the home page when the 'show_on_front' option equals 'posts'.
			 *
			 * @since 5.5.0
			 *
			 * @param array $sitemap_entry Sitemap entry for the home page.
			 */
			$sitemap_entry = apply_filters( 'wp_sitemaps_posts_show_on_front_entry', $sitemap_entry );
			$url_list[]    = $sitemap_entry;
		}

		foreach ( $query->posts as $post ) {
			$sitemap_entry = array(
				'loc'     => get_permalink( $post ),
				'lastmod' => wp_date( DATE_W3C, strtotime( $post->post_modified_gmt ) ),
			);

			/**
			 * Filters the sitemap entry for an individual post.
			 *
			 * @since 5.5.0
			 *
			 * @param array   $sitemap_entry Sitemap entry for the post.
			 * @param WP_Post $post          Post object.
			 * @param string  $post_type     Name of the post_type.
			 */
			$sitemap_entry = apply_filters( 'wp_sitemaps_posts_entry', $sitemap_entry, $post, $post_type );
			$url_list[]    = $sitemap_entry;
		}

		return $url_list;
	}

	/**
	 * Gets the max number of pages available for the object type.
	 *
	 * @since 5.5.0
	 * @since 5.9.0 Renamed `$post_type` to `$object_subtype` to match parent class
	 *              for PHP 8 named parameter support.
	 *
	 * @param string $object_subtype Optional. Post type name. Default empty.
	 * @return int Total number of pages.
	 */
	public function get_max_num_pages( $object_subtype = '' ) {
		if ( empty( $object_subtype ) ) {
			return 0;
		}

		// Restores the more descriptive, specific name for use within this method.
		$post_type = $object_subtype;

		/**
		 * Filters the max number of pages before it is generated.
		 *
		 * Passing a non-null value will short-circuit the generation,
		 * returning that value instead.
		 *
		 * @since 5.5.0
		 *
		 * @param int|null $max_num_pages The maximum number of pages. Default null.
		 * @param string   $post_type     Post type name.
		 */
		$max_num_pages = apply_filters( 'wp_sitemaps_posts_pre_max_num_pages', null, $post_type );

		if ( null !== $max_num_pages ) {
			return $max_num_pages;
		}

		$args                  = $this->get_posts_query_args( $post_type );
		$args['fields']        = 'ids';
		$args['no_found_rows'] = false;

		$query = new WP_Query( $args );

		$min_num_pages = ( 'page' === $post_type && 'posts' === get_option( 'show_on_front' ) ) ? 1 : 0;
		return isset( $query->max_num_pages ) ? max( $min_num_pages, $query->max_num_pages ) : 1;
	}

	/**
	 * Returns the query args for retrieving posts to list in the sitemap.
	 *
	 * @since 5.5.0
	 * @since 6.1.0 Added `ignore_sticky_posts` default parameter.
	 *
	 * @param string $post_type Post type name.
	 * @return array Array of WP_Query arguments.
	 */
	protected function get_posts_query_args( $post_type ) {
		/**
		 * Filters the query arguments for post type sitemap queries.
		 *
		 * @see WP_Query for a full list of arguments.
		 *
		 * @since 5.5.0
		 * @since 6.1.0 Added `ignore_sticky_posts` default parameter.
		 *
		 * @param array  $args      Array of WP_Query arguments.
		 * @param string $post_type Post type name.
		 */
		$args = apply_filters(
			'wp_sitemaps_posts_query_args',
			array(
				'orderby'                => 'ID',
				'order'                  => 'ASC',
				'post_type'              => $post_type,
				'posts_per_page'         => wp_sitemaps_get_max_urls( $this->object_type ),
				'post_status'            => array( 'publish' ),
				'no_found_rows'          => true,
				'update_post_term_cache' => false,
				'update_post_meta_cache' => false,
				'ignore_sticky_posts'    => true, // Sticky posts will still appear, but they won't be moved to the front.
			),
			$post_type
		);

		return $args;
	}
}
PK       ! 1$9�Y  Y  %  providers/class-wp-sitemaps-users.phpnu �[���        <?php
/**
 * Sitemaps: WP_Sitemaps_Users class
 *
 * Builds the sitemaps for the 'user' object type.
 *
 * @package WordPress
 * @subpackage Sitemaps
 * @since 5.5.0
 */

/**
 * Users XML sitemap provider.
 *
 * @since 5.5.0
 */
class WP_Sitemaps_Users extends WP_Sitemaps_Provider {
	/**
	 * WP_Sitemaps_Users constructor.
	 *
	 * @since 5.5.0
	 */
	public function __construct() {
		$this->name        = 'users';
		$this->object_type = 'user';
	}

	/**
	 * Gets a URL list for a user sitemap.
	 *
	 * @since 5.5.0
	 *
	 * @param int    $page_num       Page of results.
	 * @param string $object_subtype Optional. Not applicable for Users but
	 *                               required for compatibility with the parent
	 *                               provider class. Default empty.
	 * @return array[] Array of URL information for a sitemap.
	 */
	public function get_url_list( $page_num, $object_subtype = '' ) {
		/**
		 * Filters the users URL list before it is generated.
		 *
		 * Returning a non-null value will effectively short-circuit the generation,
		 * returning that value instead.
		 *
		 * @since 5.5.0
		 *
		 * @param array[]|null $url_list The URL list. Default null.
		 * @param int        $page_num Page of results.
		 */
		$url_list = apply_filters(
			'wp_sitemaps_users_pre_url_list',
			null,
			$page_num
		);

		if ( null !== $url_list ) {
			return $url_list;
		}

		$args          = $this->get_users_query_args();
		$args['paged'] = $page_num;

		$query    = new WP_User_Query( $args );
		$users    = $query->get_results();
		$url_list = array();

		foreach ( $users as $user ) {
			$sitemap_entry = array(
				'loc' => get_author_posts_url( $user->ID ),
			);

			/**
			 * Filters the sitemap entry for an individual user.
			 *
			 * @since 5.5.0
			 *
			 * @param array   $sitemap_entry Sitemap entry for the user.
			 * @param WP_User $user          User object.
			 */
			$sitemap_entry = apply_filters( 'wp_sitemaps_users_entry', $sitemap_entry, $user );
			$url_list[]    = $sitemap_entry;
		}

		return $url_list;
	}

	/**
	 * Gets the max number of pages available for the object type.
	 *
	 * @since 5.5.0
	 *
	 * @see WP_Sitemaps_Provider::max_num_pages
	 *
	 * @param string $object_subtype Optional. Not applicable for Users but
	 *                               required for compatibility with the parent
	 *                               provider class. Default empty.
	 * @return int Total page count.
	 */
	public function get_max_num_pages( $object_subtype = '' ) {
		/**
		 * Filters the max number of pages for a user sitemap before it is generated.
		 *
		 * Returning a non-null value will effectively short-circuit the generation,
		 * returning that value instead.
		 *
		 * @since 5.5.0
		 *
		 * @param int|null $max_num_pages The maximum number of pages. Default null.
		 */
		$max_num_pages = apply_filters( 'wp_sitemaps_users_pre_max_num_pages', null );

		if ( null !== $max_num_pages ) {
			return $max_num_pages;
		}

		$args  = $this->get_users_query_args();
		$query = new WP_User_Query( $args );

		$total_users = $query->get_total();

		return (int) ceil( $total_users / wp_sitemaps_get_max_urls( $this->object_type ) );
	}

	/**
	 * Returns the query args for retrieving users to list in the sitemap.
	 *
	 * @since 5.5.0
	 *
	 * @return array Array of WP_User_Query arguments.
	 */
	protected function get_users_query_args() {
		$public_post_types = get_post_types(
			array(
				'public' => true,
			)
		);

		// We're not supporting sitemaps for author pages for attachments and pages.
		unset( $public_post_types['attachment'] );
		unset( $public_post_types['page'] );

		/**
		 * Filters the query arguments for authors with public posts.
		 *
		 * Allows modification of the authors query arguments before querying.
		 *
		 * @see WP_User_Query for a full list of arguments
		 *
		 * @since 5.5.0
		 *
		 * @param array $args Array of WP_User_Query arguments.
		 */
		$args = apply_filters(
			'wp_sitemaps_users_query_args',
			array(
				'has_published_posts' => array_keys( $public_post_types ),
				'number'              => wp_sitemaps_get_max_urls( $this->object_type ),
			)
		);

		return $args;
	}
}
PK       ! �    *  providers/class-wp-sitemaps-taxonomies.phpnu �[���        <?php
/**
 * Sitemaps: WP_Sitemaps_Taxonomies class
 *
 * Builds the sitemaps for the 'taxonomy' object type.
 *
 * @package WordPress
 * @subpackage Sitemaps
 * @since 5.5.0
 */

/**
 * Taxonomies XML sitemap provider.
 *
 * @since 5.5.0
 */
class WP_Sitemaps_Taxonomies extends WP_Sitemaps_Provider {
	/**
	 * WP_Sitemaps_Taxonomies constructor.
	 *
	 * @since 5.5.0
	 */
	public function __construct() {
		$this->name        = 'taxonomies';
		$this->object_type = 'term';
	}

	/**
	 * Returns all public, registered taxonomies.
	 *
	 * @since 5.5.0
	 *
	 * @return WP_Taxonomy[] Array of registered taxonomy objects keyed by their name.
	 */
	public function get_object_subtypes() {
		$taxonomies = get_taxonomies( array( 'public' => true ), 'objects' );

		$taxonomies = array_filter( $taxonomies, 'is_taxonomy_viewable' );

		/**
		 * Filters the list of taxonomy object subtypes available within the sitemap.
		 *
		 * @since 5.5.0
		 *
		 * @param WP_Taxonomy[] $taxonomies Array of registered taxonomy objects keyed by their name.
		 */
		return apply_filters( 'wp_sitemaps_taxonomies', $taxonomies );
	}

	/**
	 * Gets a URL list for a taxonomy sitemap.
	 *
	 * @since 5.5.0
	 * @since 5.9.0 Renamed `$taxonomy` to `$object_subtype` to match parent class
	 *              for PHP 8 named parameter support.
	 *
	 * @param int    $page_num       Page of results.
	 * @param string $object_subtype Optional. Taxonomy name. Default empty.
	 * @return array[] Array of URL information for a sitemap.
	 */
	public function get_url_list( $page_num, $object_subtype = '' ) {
		// Restores the more descriptive, specific name for use within this method.
		$taxonomy = $object_subtype;

		$supported_types = $this->get_object_subtypes();

		// Bail early if the queried taxonomy is not supported.
		if ( ! isset( $supported_types[ $taxonomy ] ) ) {
			return array();
		}

		/**
		 * Filters the taxonomies URL list before it is generated.
		 *
		 * Returning a non-null value will effectively short-circuit the generation,
		 * returning that value instead.
		 *
		 * @since 5.5.0
		 *
		 * @param array[]|null $url_list The URL list. Default null.
		 * @param string       $taxonomy Taxonomy name.
		 * @param int          $page_num Page of results.
		 */
		$url_list = apply_filters(
			'wp_sitemaps_taxonomies_pre_url_list',
			null,
			$taxonomy,
			$page_num
		);

		if ( null !== $url_list ) {
			return $url_list;
		}

		$url_list = array();

		// Offset by how many terms should be included in previous pages.
		$offset = ( $page_num - 1 ) * wp_sitemaps_get_max_urls( $this->object_type );

		$args           = $this->get_taxonomies_query_args( $taxonomy );
		$args['fields'] = 'all';
		$args['offset'] = $offset;

		$taxonomy_terms = new WP_Term_Query( $args );

		if ( ! empty( $taxonomy_terms->terms ) ) {
			foreach ( $taxonomy_terms->terms as $term ) {
				$term_link = get_term_link( $term, $taxonomy );

				if ( is_wp_error( $term_link ) ) {
					continue;
				}

				$sitemap_entry = array(
					'loc' => $term_link,
				);

				/**
				 * Filters the sitemap entry for an individual term.
				 *
				 * @since 5.5.0
				 * @since 6.0.0 Added `$term` argument containing the term object.
				 *
				 * @param array   $sitemap_entry Sitemap entry for the term.
				 * @param int     $term_id       Term ID.
				 * @param string  $taxonomy      Taxonomy name.
				 * @param WP_Term $term          Term object.
				 */
				$sitemap_entry = apply_filters( 'wp_sitemaps_taxonomies_entry', $sitemap_entry, $term->term_id, $taxonomy, $term );
				$url_list[]    = $sitemap_entry;
			}
		}

		return $url_list;
	}

	/**
	 * Gets the max number of pages available for the object type.
	 *
	 * @since 5.5.0
	 * @since 5.9.0 Renamed `$taxonomy` to `$object_subtype` to match parent class
	 *              for PHP 8 named parameter support.
	 *
	 * @param string $object_subtype Optional. Taxonomy name. Default empty.
	 * @return int Total number of pages.
	 */
	public function get_max_num_pages( $object_subtype = '' ) {
		if ( empty( $object_subtype ) ) {
			return 0;
		}

		// Restores the more descriptive, specific name for use within this method.
		$taxonomy = $object_subtype;

		/**
		 * Filters the max number of pages for a taxonomy sitemap before it is generated.
		 *
		 * Passing a non-null value will short-circuit the generation,
		 * returning that value instead.
		 *
		 * @since 5.5.0
		 *
		 * @param int|null $max_num_pages The maximum number of pages. Default null.
		 * @param string   $taxonomy      Taxonomy name.
		 */
		$max_num_pages = apply_filters( 'wp_sitemaps_taxonomies_pre_max_num_pages', null, $taxonomy );

		if ( null !== $max_num_pages ) {
			return $max_num_pages;
		}

		$term_count = wp_count_terms( $this->get_taxonomies_query_args( $taxonomy ) );

		return (int) ceil( $term_count / wp_sitemaps_get_max_urls( $this->object_type ) );
	}

	/**
	 * Returns the query args for retrieving taxonomy terms to list in the sitemap.
	 *
	 * @since 5.5.0
	 *
	 * @param string $taxonomy Taxonomy name.
	 * @return array Array of WP_Term_Query arguments.
	 */
	protected function get_taxonomies_query_args( $taxonomy ) {
		/**
		 * Filters the taxonomy terms query arguments.
		 *
		 * Allows modification of the taxonomy query arguments before querying.
		 *
		 * @see WP_Term_Query for a full list of arguments
		 *
		 * @since 5.5.0
		 *
		 * @param array  $args     Array of WP_Term_Query arguments.
		 * @param string $taxonomy Taxonomy name.
		 */
		$args = apply_filters(
			'wp_sitemaps_taxonomies_query_args',
			array(
				'taxonomy'               => $taxonomy,
				'orderby'                => 'term_order',
				'number'                 => wp_sitemaps_get_max_urls( $this->object_type ),
				'hide_empty'             => true,
				'hierarchical'           => false,
				'update_term_meta_cache' => false,
			),
			$taxonomy
		);

		return $args;
	}
}
PK       ! +@��      class-wp-sitemaps-renderer.phpnu �[���        <?php
/**
 * Sitemaps: WP_Sitemaps_Renderer class
 *
 * Responsible for rendering Sitemaps data to XML in accordance with sitemap protocol.
 *
 * @package WordPress
 * @subpackage Sitemaps
 * @since 5.5.0
 */

/**
 * Class WP_Sitemaps_Renderer
 *
 * @since 5.5.0
 */
#[AllowDynamicProperties]
class WP_Sitemaps_Renderer {
	/**
	 * XSL stylesheet for styling a sitemap for web browsers.
	 *
	 * @since 5.5.0
	 *
	 * @var string
	 */
	protected $stylesheet = '';

	/**
	 * XSL stylesheet for styling a sitemap for web browsers.
	 *
	 * @since 5.5.0
	 *
	 * @var string
	 */
	protected $stylesheet_index = '';

	/**
	 * WP_Sitemaps_Renderer constructor.
	 *
	 * @since 5.5.0
	 */
	public function __construct() {
		$stylesheet_url = $this->get_sitemap_stylesheet_url();

		if ( $stylesheet_url ) {
			$this->stylesheet = '<?xml-stylesheet type="text/xsl" href="' . esc_url( $stylesheet_url ) . '" ?>';
		}

		$stylesheet_index_url = $this->get_sitemap_index_stylesheet_url();

		if ( $stylesheet_index_url ) {
			$this->stylesheet_index = '<?xml-stylesheet type="text/xsl" href="' . esc_url( $stylesheet_index_url ) . '" ?>';
		}
	}

	/**
	 * Gets the URL for the sitemap stylesheet.
	 *
	 * @since 5.5.0
	 *
	 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
	 *
	 * @return string The sitemap stylesheet URL.
	 */
	public function get_sitemap_stylesheet_url() {
		global $wp_rewrite;

		$sitemap_url = home_url( '/wp-sitemap.xsl' );

		if ( ! $wp_rewrite->using_permalinks() ) {
			$sitemap_url = home_url( '/?sitemap-stylesheet=sitemap' );
		}

		/**
		 * Filters the URL for the sitemap stylesheet.
		 *
		 * If a falsey value is returned, no stylesheet will be used and
		 * the "raw" XML of the sitemap will be displayed.
		 *
		 * @since 5.5.0
		 *
		 * @param string $sitemap_url Full URL for the sitemaps XSL file.
		 */
		return apply_filters( 'wp_sitemaps_stylesheet_url', $sitemap_url );
	}

	/**
	 * Gets the URL for the sitemap index stylesheet.
	 *
	 * @since 5.5.0
	 *
	 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
	 *
	 * @return string The sitemap index stylesheet URL.
	 */
	public function get_sitemap_index_stylesheet_url() {
		global $wp_rewrite;

		$sitemap_url = home_url( '/wp-sitemap-index.xsl' );

		if ( ! $wp_rewrite->using_permalinks() ) {
			$sitemap_url = home_url( '/?sitemap-stylesheet=index' );
		}

		/**
		 * Filters the URL for the sitemap index stylesheet.
		 *
		 * If a falsey value is returned, no stylesheet will be used and
		 * the "raw" XML of the sitemap index will be displayed.
		 *
		 * @since 5.5.0
		 *
		 * @param string $sitemap_url Full URL for the sitemaps index XSL file.
		 */
		return apply_filters( 'wp_sitemaps_stylesheet_index_url', $sitemap_url );
	}

	/**
	 * Renders a sitemap index.
	 *
	 * @since 5.5.0
	 *
	 * @param array $sitemaps Array of sitemap URLs.
	 */
	public function render_index( $sitemaps ) {
		header( 'Content-Type: application/xml; charset=UTF-8' );

		$this->check_for_simple_xml_availability();

		$index_xml = $this->get_sitemap_index_xml( $sitemaps );

		if ( ! empty( $index_xml ) ) {
			// All output is escaped within get_sitemap_index_xml().
			echo $index_xml;
		}
	}

	/**
	 * Gets XML for a sitemap index.
	 *
	 * @since 5.5.0
	 *
	 * @param array $sitemaps Array of sitemap URLs.
	 * @return string|false A well-formed XML string for a sitemap index. False on error.
	 */
	public function get_sitemap_index_xml( $sitemaps ) {
		$sitemap_index = new SimpleXMLElement(
			sprintf(
				'%1$s%2$s%3$s',
				'<?xml version="1.0" encoding="UTF-8" ?>',
				$this->stylesheet_index,
				'<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" />'
			)
		);

		foreach ( $sitemaps as $entry ) {
			$sitemap = $sitemap_index->addChild( 'sitemap' );

			// Add each element as a child node to the <sitemap> entry.
			foreach ( $entry as $name => $value ) {
				if ( 'loc' === $name ) {
					$sitemap->addChild( $name, esc_url( $value ) );
				} elseif ( 'lastmod' === $name ) {
					$sitemap->addChild( $name, esc_xml( $value ) );
				} else {
					_doing_it_wrong(
						__METHOD__,
						sprintf(
							/* translators: %s: List of element names. */
							__( 'Fields other than %s are not currently supported for the sitemap index.' ),
							implode( ',', array( 'loc', 'lastmod' ) )
						),
						'5.5.0'
					);
				}
			}
		}

		return $sitemap_index->asXML();
	}

	/**
	 * Renders a sitemap.
	 *
	 * @since 5.5.0
	 *
	 * @param array $url_list Array of URLs for a sitemap.
	 */
	public function render_sitemap( $url_list ) {
		header( 'Content-Type: application/xml; charset=UTF-8' );

		$this->check_for_simple_xml_availability();

		$sitemap_xml = $this->get_sitemap_xml( $url_list );

		if ( ! empty( $sitemap_xml ) ) {
			// All output is escaped within get_sitemap_xml().
			echo $sitemap_xml;
		}
	}

	/**
	 * Gets XML for a sitemap.
	 *
	 * @since 5.5.0
	 *
	 * @param array $url_list Array of URLs for a sitemap.
	 * @return string|false A well-formed XML string for a sitemap index. False on error.
	 */
	public function get_sitemap_xml( $url_list ) {
		$urlset = new SimpleXMLElement(
			sprintf(
				'%1$s%2$s%3$s',
				'<?xml version="1.0" encoding="UTF-8" ?>',
				$this->stylesheet,
				'<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" />'
			)
		);

		foreach ( $url_list as $url_item ) {
			$url = $urlset->addChild( 'url' );

			// Add each element as a child node to the <url> entry.
			foreach ( $url_item as $name => $value ) {
				if ( 'loc' === $name ) {
					$url->addChild( $name, esc_url( $value ) );
				} elseif ( in_array( $name, array( 'lastmod', 'changefreq', 'priority' ), true ) ) {
					$url->addChild( $name, esc_xml( $value ) );
				} else {
					_doing_it_wrong(
						__METHOD__,
						sprintf(
							/* translators: %s: List of element names. */
							__( 'Fields other than %s are not currently supported for sitemaps.' ),
							implode( ',', array( 'loc', 'lastmod', 'changefreq', 'priority' ) )
						),
						'5.5.0'
					);
				}
			}
		}

		return $urlset->asXML();
	}

	/**
	 * Checks for the availability of the SimpleXML extension and errors if missing.
	 *
	 * @since 5.5.0
	 */
	private function check_for_simple_xml_availability() {
		if ( ! class_exists( 'SimpleXMLElement' ) ) {
			add_filter(
				'wp_die_handler',
				static function () {
					return '_xml_wp_die_handler';
				}
			);

			wp_die(
				sprintf(
					/* translators: %s: SimpleXML */
					esc_xml( __( 'Could not generate XML sitemap due to missing %s extension' ) ),
					'SimpleXML'
				),
				esc_xml( __( 'WordPress &rsaquo; Error' ) ),
				array(
					'response' => 501, // "Not implemented".
				)
			);
		}
	}
}
PK       ! aM�;      class-wp-sitemaps.phpnu �[���        <?php
/**
 * Sitemaps: WP_Sitemaps class
 *
 * This is the main class integrating all other classes.
 *
 * @package WordPress
 * @subpackage Sitemaps
 * @since 5.5.0
 */

/**
 * Class WP_Sitemaps.
 *
 * @since 5.5.0
 */
#[AllowDynamicProperties]
class WP_Sitemaps {
	/**
	 * The main index of supported sitemaps.
	 *
	 * @since 5.5.0
	 *
	 * @var WP_Sitemaps_Index
	 */
	public $index;

	/**
	 * The main registry of supported sitemaps.
	 *
	 * @since 5.5.0
	 *
	 * @var WP_Sitemaps_Registry
	 */
	public $registry;

	/**
	 * An instance of the renderer class.
	 *
	 * @since 5.5.0
	 *
	 * @var WP_Sitemaps_Renderer
	 */
	public $renderer;

	/**
	 * WP_Sitemaps constructor.
	 *
	 * @since 5.5.0
	 */
	public function __construct() {
		$this->registry = new WP_Sitemaps_Registry();
		$this->renderer = new WP_Sitemaps_Renderer();
		$this->index    = new WP_Sitemaps_Index( $this->registry );
	}

	/**
	 * Initiates all sitemap functionality.
	 *
	 * If sitemaps are disabled, only the rewrite rules will be registered
	 * by this method, in order to properly send 404s.
	 *
	 * @since 5.5.0
	 */
	public function init() {
		// These will all fire on the init hook.
		$this->register_rewrites();

		add_action( 'template_redirect', array( $this, 'render_sitemaps' ) );

		if ( ! $this->sitemaps_enabled() ) {
			return;
		}

		$this->register_sitemaps();

		// Add additional action callbacks.
		add_filter( 'robots_txt', array( $this, 'add_robots' ), 0, 2 );
	}

	/**
	 * Determines whether sitemaps are enabled or not.
	 *
	 * @since 5.5.0
	 *
	 * @return bool Whether sitemaps are enabled.
	 */
	public function sitemaps_enabled() {
		$is_enabled = (bool) get_option( 'blog_public' );

		/**
		 * Filters whether XML Sitemaps are enabled or not.
		 *
		 * When XML Sitemaps are disabled via this filter, rewrite rules are still
		 * in place to ensure a 404 is returned.
		 *
		 * @see WP_Sitemaps::register_rewrites()
		 *
		 * @since 5.5.0
		 *
		 * @param bool $is_enabled Whether XML Sitemaps are enabled or not.
		 *                         Defaults to true for public sites.
		 */
		return (bool) apply_filters( 'wp_sitemaps_enabled', $is_enabled );
	}

	/**
	 * Registers and sets up the functionality for all supported sitemaps.
	 *
	 * @since 5.5.0
	 */
	public function register_sitemaps() {
		$providers = array(
			'posts'      => new WP_Sitemaps_Posts(),
			'taxonomies' => new WP_Sitemaps_Taxonomies(),
			'users'      => new WP_Sitemaps_Users(),
		);

		/* @var WP_Sitemaps_Provider $provider */
		foreach ( $providers as $name => $provider ) {
			$this->registry->add_provider( $name, $provider );
		}
	}

	/**
	 * Registers sitemap rewrite tags and routing rules.
	 *
	 * @since 5.5.0
	 */
	public function register_rewrites() {
		// Add rewrite tags.
		add_rewrite_tag( '%sitemap%', '([^?]+)' );
		add_rewrite_tag( '%sitemap-subtype%', '([^?]+)' );

		// Register index route.
		add_rewrite_rule( '^wp-sitemap\.xml$', 'index.php?sitemap=index', 'top' );

		// Register rewrites for the XSL stylesheet.
		add_rewrite_tag( '%sitemap-stylesheet%', '([^?]+)' );
		add_rewrite_rule( '^wp-sitemap\.xsl$', 'index.php?sitemap-stylesheet=sitemap', 'top' );
		add_rewrite_rule( '^wp-sitemap-index\.xsl$', 'index.php?sitemap-stylesheet=index', 'top' );

		// Register routes for providers.
		add_rewrite_rule(
			'^wp-sitemap-([a-z]+?)-([a-z\d_-]+?)-(\d+?)\.xml$',
			'index.php?sitemap=$matches[1]&sitemap-subtype=$matches[2]&paged=$matches[3]',
			'top'
		);
		add_rewrite_rule(
			'^wp-sitemap-([a-z]+?)-(\d+?)\.xml$',
			'index.php?sitemap=$matches[1]&paged=$matches[2]',
			'top'
		);
	}

	/**
	 * Renders sitemap templates based on rewrite rules.
	 *
	 * @since 5.5.0
	 *
	 * @global WP_Query $wp_query WordPress Query object.
	 */
	public function render_sitemaps() {
		global $wp_query;

		$sitemap         = sanitize_text_field( get_query_var( 'sitemap' ) );
		$object_subtype  = sanitize_text_field( get_query_var( 'sitemap-subtype' ) );
		$stylesheet_type = sanitize_text_field( get_query_var( 'sitemap-stylesheet' ) );
		$paged           = absint( get_query_var( 'paged' ) );

		// Bail early if this isn't a sitemap or stylesheet route.
		if ( ! ( $sitemap || $stylesheet_type ) ) {
			return;
		}

		if ( ! $this->sitemaps_enabled() ) {
			$wp_query->set_404();
			status_header( 404 );
			return;
		}

		// Render stylesheet if this is stylesheet route.
		if ( $stylesheet_type ) {
			$stylesheet = new WP_Sitemaps_Stylesheet();

			$stylesheet->render_stylesheet( $stylesheet_type );
			exit;
		}

		// Render the index.
		if ( 'index' === $sitemap ) {
			$sitemap_list = $this->index->get_sitemap_list();

			$this->renderer->render_index( $sitemap_list );
			exit;
		}

		$provider = $this->registry->get_provider( $sitemap );

		if ( ! $provider ) {
			return;
		}

		if ( empty( $paged ) ) {
			$paged = 1;
		}

		$url_list = $provider->get_url_list( $paged, $object_subtype );

		// Force a 404 and bail early if no URLs are present.
		if ( empty( $url_list ) ) {
			$wp_query->set_404();
			status_header( 404 );
			return;
		}

		$this->renderer->render_sitemap( $url_list );
		exit;
	}

	/**
	 * Redirects a URL to the wp-sitemap.xml
	 *
	 * @since 5.5.0
	 * @deprecated 6.7.0 Deprecated in favor of {@see WP_Rewrite::rewrite_rules()}
	 *
	 * @param bool     $bypass Pass-through of the pre_handle_404 filter value.
	 * @param WP_Query $query  The WP_Query object.
	 * @return bool Bypass value.
	 */
	public function redirect_sitemapxml( $bypass, $query ) {
		_deprecated_function( __FUNCTION__, '6.7.0' );

		// If a plugin has already utilized the pre_handle_404 function, return without action to avoid conflicts.
		if ( $bypass ) {
			return $bypass;
		}

		// 'pagename' is for most permalink types, name is for when the %postname% is used as a top-level field.
		if ( 'sitemap-xml' === $query->get( 'pagename' )
			|| 'sitemap-xml' === $query->get( 'name' )
		) {
			wp_safe_redirect( $this->index->get_index_url() );
			exit();
		}

		return $bypass;
	}

	/**
	 * Adds the sitemap index to robots.txt.
	 *
	 * @since 5.5.0
	 *
	 * @param string $output    robots.txt output.
	 * @param bool   $is_public Whether the site is public.
	 * @return string The robots.txt output.
	 */
	public function add_robots( $output, $is_public ) {
		if ( $is_public ) {
			$output .= "\nSitemap: " . esc_url( $this->index->get_index_url() ) . "\n";
		}

		return $output;
	}
}
PK       ! ]��)6!  6!     class-wp-sitemaps-stylesheet.phpnu �[���        <?php
/**
 * Sitemaps: WP_Sitemaps_Stylesheet class
 *
 * This class provides the XSL stylesheets to style all sitemaps.
 *
 * @package WordPress
 * @subpackage Sitemaps
 * @since 5.5.0
 */

/**
 * Stylesheet provider class.
 *
 * @since 5.5.0
 */
#[AllowDynamicProperties]
class WP_Sitemaps_Stylesheet {
	/**
	 * Renders the XSL stylesheet depending on whether it's the sitemap index or not.
	 *
	 * @param string $type Stylesheet type. Either 'sitemap' or 'index'.
	 */
	public function render_stylesheet( $type ) {
		header( 'Content-Type: application/xml; charset=UTF-8' );

		if ( 'sitemap' === $type ) {
			// All content is escaped below.
			echo $this->get_sitemap_stylesheet();
		}

		if ( 'index' === $type ) {
			// All content is escaped below.
			echo $this->get_sitemap_index_stylesheet();
		}

		exit;
	}

	/**
	 * Returns the escaped XSL for all sitemaps, except index.
	 *
	 * @since 5.5.0
	 */
	public function get_sitemap_stylesheet() {
		$css         = $this->get_stylesheet_css();
		$title       = esc_xml( __( 'XML Sitemap' ) );
		$description = esc_xml( __( 'This XML Sitemap is generated by WordPress to make your content more visible for search engines.' ) );
		$learn_more  = sprintf(
			'<a href="%s">%s</a>',
			esc_url( __( 'https://www.sitemaps.org/' ) ),
			esc_xml( __( 'Learn more about XML sitemaps.' ) )
		);

		$text = sprintf(
			/* translators: %s: Number of URLs. */
			esc_xml( __( 'Number of URLs in this XML Sitemap: %s.' ) ),
			'<xsl:value-of select="count( sitemap:urlset/sitemap:url )" />'
		);

		$lang       = get_language_attributes( 'html' );
		$url        = esc_xml( __( 'URL' ) );
		$lastmod    = esc_xml( __( 'Last Modified' ) );
		$changefreq = esc_xml( __( 'Change Frequency' ) );
		$priority   = esc_xml( __( 'Priority' ) );

		$xsl_content = <<<XSL
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet
		version="1.0"
		xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
		xmlns:sitemap="http://www.sitemaps.org/schemas/sitemap/0.9"
		exclude-result-prefixes="sitemap"
		>

	<xsl:output method="html" encoding="UTF-8" indent="yes" />

	<!--
	  Set variables for whether lastmod, changefreq or priority occur for any url in the sitemap.
	  We do this up front because it can be expensive in a large sitemap.
	  -->
	<xsl:variable name="has-lastmod"    select="count( /sitemap:urlset/sitemap:url/sitemap:lastmod )"    />
	<xsl:variable name="has-changefreq" select="count( /sitemap:urlset/sitemap:url/sitemap:changefreq )" />
	<xsl:variable name="has-priority"   select="count( /sitemap:urlset/sitemap:url/sitemap:priority )"   />

	<xsl:template match="/">
		<html {$lang}>
			<head>
				<title>{$title}</title>
				<style>
					{$css}
				</style>
			</head>
			<body>
				<div id="sitemap">
					<div id="sitemap__header">
						<h1>{$title}</h1>
						<p>{$description}</p>
						<p>{$learn_more}</p>
					</div>
					<div id="sitemap__content">
						<p class="text">{$text}</p>
						<table id="sitemap__table">
							<thead>
								<tr>
									<th class="loc">{$url}</th>
									<xsl:if test="\$has-lastmod">
										<th class="lastmod">{$lastmod}</th>
									</xsl:if>
									<xsl:if test="\$has-changefreq">
										<th class="changefreq">{$changefreq}</th>
									</xsl:if>
									<xsl:if test="\$has-priority">
										<th class="priority">{$priority}</th>
									</xsl:if>
								</tr>
							</thead>
							<tbody>
								<xsl:for-each select="sitemap:urlset/sitemap:url">
									<tr>
										<td class="loc"><a href="{sitemap:loc}"><xsl:value-of select="sitemap:loc" /></a></td>
										<xsl:if test="\$has-lastmod">
											<td class="lastmod"><xsl:value-of select="sitemap:lastmod" /></td>
										</xsl:if>
										<xsl:if test="\$has-changefreq">
											<td class="changefreq"><xsl:value-of select="sitemap:changefreq" /></td>
										</xsl:if>
										<xsl:if test="\$has-priority">
											<td class="priority"><xsl:value-of select="sitemap:priority" /></td>
										</xsl:if>
									</tr>
								</xsl:for-each>
							</tbody>
						</table>
					</div>
				</div>
			</body>
		</html>
	</xsl:template>
</xsl:stylesheet>

XSL;

		/**
		 * Filters the content of the sitemap stylesheet.
		 *
		 * @since 5.5.0
		 *
		 * @param string $xsl_content Full content for the XML stylesheet.
		 */
		return apply_filters( 'wp_sitemaps_stylesheet_content', $xsl_content );
	}

	/**
	 * Returns the escaped XSL for the index sitemaps.
	 *
	 * @since 5.5.0
	 */
	public function get_sitemap_index_stylesheet() {
		$css         = $this->get_stylesheet_css();
		$title       = esc_xml( __( 'XML Sitemap' ) );
		$description = esc_xml( __( 'This XML Sitemap is generated by WordPress to make your content more visible for search engines.' ) );
		$learn_more  = sprintf(
			'<a href="%s">%s</a>',
			esc_url( __( 'https://www.sitemaps.org/' ) ),
			esc_xml( __( 'Learn more about XML sitemaps.' ) )
		);

		$text = sprintf(
			/* translators: %s: Number of URLs. */
			esc_xml( __( 'Number of URLs in this XML Sitemap: %s.' ) ),
			'<xsl:value-of select="count( sitemap:sitemapindex/sitemap:sitemap )" />'
		);

		$lang    = get_language_attributes( 'html' );
		$url     = esc_xml( __( 'URL' ) );
		$lastmod = esc_xml( __( 'Last Modified' ) );

		$xsl_content = <<<XSL
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet
		version="1.0"
		xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
		xmlns:sitemap="http://www.sitemaps.org/schemas/sitemap/0.9"
		exclude-result-prefixes="sitemap"
		>

	<xsl:output method="html" encoding="UTF-8" indent="yes" />

	<!--
	  Set variables for whether lastmod occurs for any sitemap in the index.
	  We do this up front because it can be expensive in a large sitemap.
	  -->
	<xsl:variable name="has-lastmod" select="count( /sitemap:sitemapindex/sitemap:sitemap/sitemap:lastmod )" />

	<xsl:template match="/">
		<html {$lang}>
			<head>
				<title>{$title}</title>
				<style>
					{$css}
				</style>
			</head>
			<body>
				<div id="sitemap">
					<div id="sitemap__header">
						<h1>{$title}</h1>
						<p>{$description}</p>
						<p>{$learn_more}</p>
					</div>
					<div id="sitemap__content">
						<p class="text">{$text}</p>
						<table id="sitemap__table">
							<thead>
								<tr>
									<th class="loc">{$url}</th>
									<xsl:if test="\$has-lastmod">
										<th class="lastmod">{$lastmod}</th>
									</xsl:if>
								</tr>
							</thead>
							<tbody>
								<xsl:for-each select="sitemap:sitemapindex/sitemap:sitemap">
									<tr>
										<td class="loc"><a href="{sitemap:loc}"><xsl:value-of select="sitemap:loc" /></a></td>
										<xsl:if test="\$has-lastmod">
											<td class="lastmod"><xsl:value-of select="sitemap:lastmod" /></td>
										</xsl:if>
									</tr>
								</xsl:for-each>
							</tbody>
						</table>
					</div>
				</div>
			</body>
		</html>
	</xsl:template>
</xsl:stylesheet>

XSL;

		/**
		 * Filters the content of the sitemap index stylesheet.
		 *
		 * @since 5.5.0
		 *
		 * @param string $xsl_content Full content for the XML stylesheet.
		 */
		return apply_filters( 'wp_sitemaps_stylesheet_index_content', $xsl_content );
	}

	/**
	 * Gets the CSS to be included in sitemap XSL stylesheets.
	 *
	 * @since 5.5.0
	 *
	 * @return string The CSS.
	 */
	public function get_stylesheet_css() {
		$text_align = is_rtl() ? 'right' : 'left';

		$css = <<<EOF

					body {
						font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
						color: #444;
					}

					#sitemap {
						max-width: 980px;
						margin: 0 auto;
					}

					#sitemap__table {
						width: 100%;
						border: solid 1px #ccc;
						border-collapse: collapse;
					}

			 		#sitemap__table tr td.loc {
						/*
						 * URLs should always be LTR.
						 * See https://core.trac.wordpress.org/ticket/16834
						 * and https://core.trac.wordpress.org/ticket/49949
						 */
						direction: ltr;
					}

					#sitemap__table tr th {
						text-align: {$text_align};
					}

					#sitemap__table tr td,
					#sitemap__table tr th {
						padding: 10px;
					}

					#sitemap__table tr:nth-child(odd) td {
						background-color: #eee;
					}

					a:hover {
						text-decoration: none;
					}

EOF;

		/**
		 * Filters the CSS only for the sitemap stylesheet.
		 *
		 * @since 5.5.0
		 *
		 * @param string $css CSS to be applied to default XSL file.
		 */
		return apply_filters( 'wp_sitemaps_stylesheet_css', $css );
	}
}
PK       ! ���  �    class-wp-sitemaps-index.phpnu �[���        <?php
/**
 * Sitemaps: WP_Sitemaps_Index class.
 *
 * Generates the sitemap index.
 *
 * @package WordPress
 * @subpackage Sitemaps
 * @since 5.5.0
 */

/**
 * Class WP_Sitemaps_Index.
 * Builds the sitemap index page that lists the links to all of the sitemaps.
 *
 * @since 5.5.0
 */
#[AllowDynamicProperties]
class WP_Sitemaps_Index {
	/**
	 * The main registry of supported sitemaps.
	 *
	 * @since 5.5.0
	 * @var WP_Sitemaps_Registry
	 */
	protected $registry;

	/**
	 * Maximum number of sitemaps to include in an index.
	 *
	 * @since 5.5.0
	 *
	 * @var int Maximum number of sitemaps.
	 */
	private $max_sitemaps = 50000;

	/**
	 * WP_Sitemaps_Index constructor.
	 *
	 * @since 5.5.0
	 *
	 * @param WP_Sitemaps_Registry $registry Sitemap provider registry.
	 */
	public function __construct( WP_Sitemaps_Registry $registry ) {
		$this->registry = $registry;
	}

	/**
	 * Gets a sitemap list for the index.
	 *
	 * @since 5.5.0
	 *
	 * @return array[] Array of all sitemaps.
	 */
	public function get_sitemap_list() {
		$sitemaps = array();

		$providers = $this->registry->get_providers();
		/* @var WP_Sitemaps_Provider $provider */
		foreach ( $providers as $name => $provider ) {
			$sitemap_entries = $provider->get_sitemap_entries();

			// Prevent issues with array_push and empty arrays on PHP < 7.3.
			if ( ! $sitemap_entries ) {
				continue;
			}

			// Using array_push is more efficient than array_merge in a loop.
			array_push( $sitemaps, ...$sitemap_entries );
			if ( count( $sitemaps ) >= $this->max_sitemaps ) {
				break;
			}
		}

		return array_slice( $sitemaps, 0, $this->max_sitemaps, true );
	}

	/**
	 * Builds the URL for the sitemap index.
	 *
	 * @since 5.5.0
	 *
	 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
	 *
	 * @return string The sitemap index URL.
	 */
	public function get_index_url() {
		global $wp_rewrite;

		if ( ! $wp_rewrite->using_permalinks() ) {
			return home_url( '/?sitemap=index' );
		}

		return home_url( '/wp-sitemap.xml' );
	}
}
PK       ! ��m=  =    class-wp-sitemaps-provider.phpnu �[���        <?php
/**
 * Sitemaps: WP_Sitemaps_Provider class
 *
 * This class is a base class for other sitemap providers to extend and contains shared functionality.
 *
 * @package WordPress
 * @subpackage Sitemaps
 * @since 5.5.0
 */

/**
 * Class WP_Sitemaps_Provider.
 *
 * @since 5.5.0
 */
#[AllowDynamicProperties]
abstract class WP_Sitemaps_Provider {
	/**
	 * Provider name.
	 *
	 * This will also be used as the public-facing name in URLs.
	 *
	 * @since 5.5.0
	 *
	 * @var string
	 */
	protected $name = '';

	/**
	 * Object type name (e.g. 'post', 'term', 'user').
	 *
	 * @since 5.5.0
	 *
	 * @var string
	 */
	protected $object_type = '';

	/**
	 * Gets a URL list for a sitemap.
	 *
	 * @since 5.5.0
	 *
	 * @param int    $page_num       Page of results.
	 * @param string $object_subtype Optional. Object subtype name. Default empty.
	 * @return array[] Array of URL information for a sitemap.
	 */
	abstract public function get_url_list( $page_num, $object_subtype = '' );

	/**
	 * Gets the max number of pages available for the object type.
	 *
	 * @since 5.5.0
	 *
	 * @param string $object_subtype Optional. Object subtype. Default empty.
	 * @return int Total number of pages.
	 */
	abstract public function get_max_num_pages( $object_subtype = '' );

	/**
	 * Gets data about each sitemap type.
	 *
	 * @since 5.5.0
	 *
	 * @return array[] Array of sitemap types including object subtype name and number of pages.
	 */
	public function get_sitemap_type_data() {
		$sitemap_data = array();

		$object_subtypes = $this->get_object_subtypes();

		/*
		 * If there are no object subtypes, include a single sitemap for the
		 * entire object type.
		 */
		if ( empty( $object_subtypes ) ) {
			$sitemap_data[] = array(
				'name'  => '',
				'pages' => $this->get_max_num_pages(),
			);
			return $sitemap_data;
		}

		// Otherwise, include individual sitemaps for every object subtype.
		foreach ( $object_subtypes as $object_subtype_name => $data ) {
			$object_subtype_name = (string) $object_subtype_name;

			$sitemap_data[] = array(
				'name'  => $object_subtype_name,
				'pages' => $this->get_max_num_pages( $object_subtype_name ),
			);
		}

		return $sitemap_data;
	}

	/**
	 * Lists sitemap pages exposed by this provider.
	 *
	 * The returned data is used to populate the sitemap entries of the index.
	 *
	 * @since 5.5.0
	 *
	 * @return array[] Array of sitemap entries.
	 */
	public function get_sitemap_entries() {
		$sitemaps = array();

		$sitemap_types = $this->get_sitemap_type_data();

		foreach ( $sitemap_types as $type ) {
			for ( $page = 1; $page <= $type['pages']; $page++ ) {
				$sitemap_entry = array(
					'loc' => $this->get_sitemap_url( $type['name'], $page ),
				);

				/**
				 * Filters the sitemap entry for the sitemap index.
				 *
				 * @since 5.5.0
				 *
				 * @param array  $sitemap_entry  Sitemap entry for the post.
				 * @param string $object_type    Object empty name.
				 * @param string $object_subtype Object subtype name.
				 *                               Empty string if the object type does not support subtypes.
				 * @param int    $page           Page number of results.
				 */
				$sitemap_entry = apply_filters( 'wp_sitemaps_index_entry', $sitemap_entry, $this->object_type, $type['name'], $page );

				$sitemaps[] = $sitemap_entry;
			}
		}

		return $sitemaps;
	}

	/**
	 * Gets the URL of a sitemap entry.
	 *
	 * @since 5.5.0
	 *
	 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
	 *
	 * @param string $name The name of the sitemap.
	 * @param int    $page The page of the sitemap.
	 * @return string The composed URL for a sitemap entry.
	 */
	public function get_sitemap_url( $name, $page ) {
		global $wp_rewrite;

		// Accounts for cases where name is not included, ex: sitemaps-users-1.xml.
		$params = array_filter(
			array(
				'sitemap'         => $this->name,
				'sitemap-subtype' => $name,
				'paged'           => $page,
			)
		);

		$basename = sprintf(
			'/wp-sitemap-%1$s.xml',
			implode( '-', $params )
		);

		if ( ! $wp_rewrite->using_permalinks() ) {
			$basename = '/?' . http_build_query( $params, '', '&' );
		}

		return home_url( $basename );
	}

	/**
	 * Returns the list of supported object subtypes exposed by the provider.
	 *
	 * @since 5.5.0
	 *
	 * @return array List of object subtypes objects keyed by their name.
	 */
	public function get_object_subtypes() {
		return array();
	}
}
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