/**
 * WordPress Rewrite API
 *
 * @package WordPress
 * @subpackage Rewrite
 */

/**
 * Endpoint mask that matches nothing.
 *
 * @since 2.1.0
 */
define( 'EP_NONE', 0 );

/**
 * Endpoint mask that matches post permalinks.
 *
 * @since 2.1.0
 */
define( 'EP_PERMALINK', 1 );

/**
 * Endpoint mask that matches attachment permalinks.
 *
 * @since 2.1.0
 */
define( 'EP_ATTACHMENT', 2 );

/**
 * Endpoint mask that matches any date archives.
 *
 * @since 2.1.0
 */
define( 'EP_DATE', 4 );

/**
 * Endpoint mask that matches yearly archives.
 *
 * @since 2.1.0
 */
define( 'EP_YEAR', 8 );

/**
 * Endpoint mask that matches monthly archives.
 *
 * @since 2.1.0
 */
define( 'EP_MONTH', 16 );

/**
 * Endpoint mask that matches daily archives.
 *
 * @since 2.1.0
 */
define( 'EP_DAY', 32 );

/**
 * Endpoint mask that matches the site root.
 *
 * @since 2.1.0
 */
define( 'EP_ROOT', 64 );

/**
 * Endpoint mask that matches comment feeds.
 *
 * @since 2.1.0
 */
define( 'EP_COMMENTS', 128 );

/**
 * Endpoint mask that matches searches.
 *
 * Note that this only matches a search at a "pretty" URL such as
 * `/search/my-search-term`, not `?s=my-search-term`.
 *
 * @since 2.1.0
 */
define( 'EP_SEARCH', 256 );

/**
 * Endpoint mask that matches category archives.
 *
 * @since 2.1.0
 */
define( 'EP_CATEGORIES', 512 );

/**
 * Endpoint mask that matches tag archives.
 *
 * @since 2.3.0
 */
define( 'EP_TAGS', 1024 );

/**
 * Endpoint mask that matches author archives.
 *
 * @since 2.1.0
 */
define( 'EP_AUTHORS', 2048 );

/**
 * Endpoint mask that matches pages.
 *
 * @since 2.1.0
 */
define( 'EP_PAGES', 4096 );

/**
 * Endpoint mask that matches all archive views.
 *
 * @since 3.7.0
 */
define( 'EP_ALL_ARCHIVES', EP_DATE | EP_YEAR | EP_MONTH | EP_DAY | EP_CATEGORIES | EP_TAGS | EP_AUTHORS );

/**
 * Endpoint mask that matches everything.
 *
 * @since 2.1.0
 */
define( 'EP_ALL', EP_PERMALINK | EP_ATTACHMENT | EP_ROOT | EP_COMMENTS | EP_SEARCH | EP_PAGES | EP_ALL_ARCHIVES );

/**
 * Adds a rewrite rule that transforms a URL structure to a set of query vars.
 *
 * Any value in the $after parameter that isn't 'bottom' will result in the rule
 * being placed at the top of the rewrite rules.
 *
 * @since 2.1.0
 * @since 4.4.0 Array support was added to the `$query` parameter.
 *
 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 *
 * @param string       $regex Regular expression to match request against.
 * @param string|array $query The corresponding query vars for this rewrite rule.
 * @param string       $after Optional. Priority of the new rule. Accepts 'top'
 *                            or 'bottom'. Default 'bottom'.
 */
function add_rewrite_rule( $regex, $query, $after = 'bottom' ) {
	global $wp_rewrite;

	$wp_rewrite->add_rule( $regex, $query, $after );
}

/**
 * Adds a new rewrite tag (like %postname%).
 *
 * The `$query` parameter is optional. If it is omitted you must ensure that you call
 * this on, or before, the {@see 'init'} hook. This is because `$query` defaults to
 * `$tag=`, and for this to work a new query var has to be added.
 *
 * @since 2.1.0
 *
 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 * @global WP         $wp         Current WordPress environment instance.
 *
 * @param string $tag   Name of the new rewrite tag.
 * @param string $regex Regular expression to substitute the tag for in rewrite rules.
 * @param string $query Optional. String to append to the rewritten query. Must end in '='. Default empty.
 */
function add_rewrite_tag( $tag, $regex, $query = '' ) {
	// Validate the tag's name.
	if ( strlen( $tag ) < 3 || '%' !== $tag[0] || '%' !== $tag[ strlen( $tag ) - 1 ] ) {
		return;
	}

	global $wp_rewrite, $wp;

	if ( empty( $query ) ) {
		$qv = trim( $tag, '%' );
		$wp->add_query_var( $qv );
		$query = $qv . '=';
	}

	$wp_rewrite->add_rewrite_tag( $tag, $regex, $query );
}

/**
 * Removes an existing rewrite tag (like %postname%).
 *
 * @since 4.5.0
 *
 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 *
 * @param string $tag Name of the rewrite tag.
 */
function remove_rewrite_tag( $tag ) {
	global $wp_rewrite;
	$wp_rewrite->remove_rewrite_tag( $tag );
}

/**
 * Adds a permalink structure.
 *
 * @since 3.0.0
 *
 * @see WP_Rewrite::add_permastruct()
 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 *
 * @param string $name   Name for permalink structure.
 * @param string $struct Permalink structure.
 * @param array  $args   Optional. Arguments for building the rules from the permalink structure,
 *                       see WP_Rewrite::add_permastruct() for full details. Default empty array.
 */
function add_permastruct( $name, $struct, $args = array() ) {
	global $wp_rewrite;

	// Back-compat for the old parameters: $with_front and $ep_mask.
	if ( ! is_array( $args ) ) {
		$args = array( 'with_front' => $args );
	}

	if ( func_num_args() === 4 ) {
		$args['ep_mask'] = func_get_arg( 3 );
	}

	$wp_rewrite->add_permastruct( $name, $struct, $args );
}

/**
 * Removes a permalink structure.
 *
 * Can only be used to remove permastructs that were added using add_permastruct().
 * Built-in permastructs cannot be removed.
 *
 * @since 4.5.0
 *
 * @see WP_Rewrite::remove_permastruct()
 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 *
 * @param string $name Name for permalink structure.
 */
function remove_permastruct( $name ) {
	global $wp_rewrite;

	$wp_rewrite->remove_permastruct( $name );
}

/**
 * Adds a new feed type like /atom1/.
 *
 * @since 2.1.0
 *
 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 *
 * @param string   $feedname Feed name. Should not start with '_'.
 * @param callable $callback Callback to run on feed display.
 * @return string Feed action name.
 */
function add_feed( $feedname, $callback ) {
	global $wp_rewrite;

	if ( ! in_array( $feedname, $wp_rewrite->feeds, true ) ) {
		$wp_rewrite->feeds[] = $feedname;
	}

	$hook = 'do_feed_' . $feedname;

	// Remove default function hook.
	remove_action( $hook, $hook );

	add_action( $hook, $callback, 10, 2 );

	return $hook;
}

/**
 * Removes rewrite rules and then recreate rewrite rules.
 *
 * @since 3.0.0
 *
 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 *
 * @param bool $hard Whether to update .htaccess (hard flush) or just update
 *                   rewrite_rules option (soft flush). Default is true (hard).
 */
function flush_rewrite_rules( $hard = true ) {
	global $wp_rewrite;

	if ( is_callable( array( $wp_rewrite, 'flush_rules' ) ) ) {
		$wp_rewrite->flush_rules( $hard );
	}
}

/**
 * Adds an endpoint, like /trackback/.
 *
 * Adding an endpoint creates extra rewrite rules for each of the matching
 * places specified by the provided bitmask. For example:
 *
 *     add_rewrite_endpoint( 'json', EP_PERMALINK | EP_PAGES );
 *
 * will add a new rewrite rule ending with "json(/(.*))?/?$" for every permastruct
 * that describes a permalink (post) or page. This is rewritten to "json=$match"
 * where $match is the part of the URL matched by the endpoint regex (e.g. "foo" in
 * "[permalink]/json/foo/").
 *
 * A new query var with the same name as the endpoint will also be created.
 *
 * When specifying $places ensure that you are using the EP_* constants (or a
 * combination of them using the bitwise OR operator) as their values are not
 * guaranteed to remain static (especially `EP_ALL`).
 *
 * Be sure to flush the rewrite rules - see flush_rewrite_rules() - when your plugin gets
 * activated and deactivated.
 *
 * @since 2.1.0
 * @since 4.3.0 Added support for skipping query var registration by passing `false` to `$query_var`.
 *
 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 *
 * @param string      $name      Name of the endpoint.
 * @param int         $places    Endpoint mask describing the places the endpoint should be added.
 *                               Accepts a mask of:
 *                               - `EP_ALL`
 *                               - `EP_NONE`
 *                               - `EP_ALL_ARCHIVES`
 *                               - `EP_ATTACHMENT`
 *                               - `EP_AUTHORS`
 *                               - `EP_CATEGORIES`
 *                               - `EP_COMMENTS`
 *                               - `EP_DATE`
 *                               - `EP_DAY`
 *                               - `EP_MONTH`
 *                               - `EP_PAGES`
 *                               - `EP_PERMALINK`
 *                               - `EP_ROOT`
 *                               - `EP_SEARCH`
 *                               - `EP_TAGS`
 *                               - `EP_YEAR`
 * @param string|bool $query_var Name of the corresponding query variable. Pass `false` to skip registering a query_var
 *                               for this endpoint. Defaults to the value of `$name`.
 */
function add_rewrite_endpoint( $name, $places, $query_var = true ) {
	global $wp_rewrite;
	$wp_rewrite->add_endpoint( $name, $places, $query_var );
}

/**
 * Filters the URL base for taxonomies.
 *
 * To remove any manually prepended /index.php/.
 *
 * @access private
 * @since 2.6.0
 *
 * @param string $base The taxonomy base that we're going to filter
 * @return string
 */
function _wp_filter_taxonomy_base( $base ) {
	if ( ! empty( $base ) ) {
		$base = preg_replace( '|^/index\.php/|', '', $base );
		$base = trim( $base, '/' );
	}
	return $base;
}


/**
 * Resolves numeric slugs that collide with date permalinks.
 *
 * Permalinks of posts with numeric slugs can sometimes look to WP_Query::parse_query()
 * like a date archive, as when your permalink structure is `/%year%/%postname%/` and
 * a post with post_name '05' has the URL `/2015/05/`.
 *
 * This function detects conflicts of this type and resolves them in favor of the
 * post permalink.
 *
 * Note that, since 4.3.0, wp_unique_post_slug() prevents the creation of post slugs
 * that would result in a date archive conflict. The resolution performed in this
 * function is primarily for legacy content, as well as cases when the admin has changed
 * the site's permalink structure in a way that introduces URL conflicts.
 *
 * @since 4.3.0
 *
 * @param array $query_vars Optional. Query variables for setting up the loop, as determined in
 *                          WP::parse_request(). Default empty array.
 * @return array Returns the original array of query vars, with date/post conflicts resolved.
 */
function wp_resolve_numeric_slug_conflicts( $query_vars = array() ) {
	if ( ! isset( $query_vars['year'] ) && ! isset( $query_vars['monthnum'] ) && ! isset( $query_vars['day'] ) ) {
		return $query_vars;
	}

	// Identify the 'postname' position in the permastruct array.
	$permastructs   = array_values( array_filter( explode( '/', get_option( 'permalink_structure' ) ) ) );
	$postname_index = array_search( '%postname%', $permastructs, true );

	if ( false === $postname_index ) {
		return $query_vars;
	}

	/*
	 * A numeric slug could be confused with a year, month, or day, depending on position. To account for
	 * the possibility of post pagination (eg 2015/2 for the second page of a post called '2015'), our
	 * `is_*` checks are generous: check for year-slug clashes when `is_year` *or* `is_month`, and check
	 * for month-slug clashes when `is_month` *or* `is_day`.
	 */
	$compare = '';
	if ( 0 === $postname_index && ( isset( $query_vars['year'] ) || isset( $query_vars['monthnum'] ) ) ) {
		$compare = 'year';
	} elseif ( $postname_index && '%year%' === $permastructs[ $postname_index - 1 ] && ( isset( $query_vars['monthnum'] ) || isset( $query_vars['day'] ) ) ) {
		$compare = 'monthnum';
	} elseif ( $postname_index && '%monthnum%' === $permastructs[ $postname_index - 1 ] && isset( $query_vars['day'] ) ) {
		$compare = 'day';
	}

	if ( ! $compare ) {
		return $query_vars;
	}

	// This is the potentially clashing slug.
	$value = '';
	if ( $compare && array_key_exists( $compare, $query_vars ) ) {
		$value = $query_vars[ $compare ];
	}

	$post = get_page_by_path( $value, OBJECT, 'post' );
	if ( ! ( $post instanceof WP_Post ) ) {
		return $query_vars;
	}

	// If the date of the post doesn't match the date specified in the URL, resolve to the date archive.
	if ( preg_match( '/^([0-9]{4})\-([0-9]{2})/', $post->post_date, $matches ) && isset( $query_vars['year'] ) && ( 'monthnum' === $compare || 'day' === $compare ) ) {
		// $matches[1] is the year the post was published.
		if ( (int) $query_vars['year'] !== (int) $matches[1] ) {
			return $query_vars;
		}

		// $matches[2] is the month the post was published.
		if ( 'day' === $compare && isset( $query_vars['monthnum'] ) && (int) $query_vars['monthnum'] !== (int) $matches[2] ) {
			return $query_vars;
		}
	}

	/*
	 * If the located post contains nextpage pagination, then the URL chunk following postname may be
	 * intended as the page number. Verify that it's a valid page before resolving to it.
	 */
	$maybe_page = '';
	if ( 'year' === $compare && isset( $query_vars['monthnum'] ) ) {
		$maybe_page = $query_vars['monthnum'];
	} elseif ( 'monthnum' === $compare && isset( $query_vars['day'] ) ) {
		$maybe_page = $query_vars['day'];
	}
	// Bug found in #11694 - 'page' was returning '/4'.
	$maybe_page = (int) trim( $maybe_page, '/' );

	$post_page_count = substr_count( $post->post_content, '<!--nextpage-->' ) + 1;

	// If the post doesn't have multiple pages, but a 'page' candidate is found, resolve to the date archive.
	if ( 1 === $post_page_count && $maybe_page ) {
		return $query_vars;
	}

	// If the post has multiple pages and the 'page' number isn't valid, resolve to the date archive.
	if ( $post_page_count > 1 && $maybe_page > $post_page_count ) {
		return $query_vars;
	}

	// If we've gotten to this point, we have a slug/date clash. First, adjust for nextpage.
	if ( '' !== $maybe_page ) {
		$query_vars['page'] = (int) $maybe_page;
	}

	// Next, unset autodetected date-related query vars.
	unset( $query_vars['year'] );
	unset( $query_vars['monthnum'] );
	unset( $query_vars['day'] );

	// Then, set the identified post.
	$query_vars['name'] = $post->post_name;

	// Finally, return the modified query vars.
	return $query_vars;
}

/**
 * Examines a URL and try to determine the post ID it represents.
 *
 * Checks are supposedly from the hosted site blog.
 *
 * @since 1.0.0
 *
 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 * @global WP         $wp         Current WordPress environment instance.
 *
 * @param string $url Permalink to check.
 * @return int Post ID, or 0 on failure.
 */
function url_to_postid( $url ) {
	global $wp_rewrite;

	/**
	 * Filters the URL to derive the post ID from.
	 *
	 * @since 2.2.0
	 *
	 * @param string $url The URL to derive the post ID from.
	 */
	$url = apply_filters( 'url_to_postid', $url );

	$url_host = parse_url( $url, PHP_URL_HOST );

	if ( is_string( $url_host ) ) {
		$url_host = str_replace( 'www.', '', $url_host );
	} else {
		$url_host = '';
	}

	$home_url_host = parse_url( home_url(), PHP_URL_HOST );

	if ( is_string( $home_url_host ) ) {
		$home_url_host = str_replace( 'www.', '', $home_url_host );
	} else {
		$home_url_host = '';
	}

	// Bail early if the URL does not belong to this site.
	if ( $url_host && $url_host !== $home_url_host ) {
		return 0;
	}

	// First, check to see if there is a 'p=N' or 'page_id=N' to match against.
	if ( preg_match( '#[?&](p|page_id|attachment_id)=(\d+)#', $url, $values ) ) {
		$id = absint( $values[2] );
		if ( $id ) {
			return $id;
		}
	}

	// Get rid of the #anchor.
	$url_split = explode( '#', $url );
	$url       = $url_split[0];

	// Get rid of URL ?query=string.
	$url_split = explode( '?', $url );
	$url       = $url_split[0];

	// Set the correct URL scheme.
	$scheme = parse_url( home_url(), PHP_URL_SCHEME );
	$url    = set_url_scheme( $url, $scheme );

	// Add 'www.' if it is absent and should be there.
	if ( str_contains( home_url(), '://www.' ) && ! str_contains( $url, '://www.' ) ) {
		$url = str_replace( '://', '://www.', $url );
	}

	// Strip 'www.' if it is present and shouldn't be.
	if ( ! str_contains( home_url(), '://www.' ) ) {
		$url = str_replace( '://www.', '://', $url );
	}

	if ( trim( $url, '/' ) === home_url() && 'page' === get_option( 'show_on_front' ) ) {
		$page_on_front = get_option( 'page_on_front' );

		if ( $page_on_front && get_post( $page_on_front ) instanceof WP_Post ) {
			return (int) $page_on_front;
		}
	}

	// Check to see if we are using rewrite rules.
	$rewrite = $wp_rewrite->wp_rewrite_rules();

	// Not using rewrite rules, and 'p=N' and 'page_id=N' methods failed, so we're out of options.
	if ( empty( $rewrite ) ) {
		return 0;
	}

	// Strip 'index.php/' if we're not using path info permalinks.
	if ( ! $wp_rewrite->using_index_permalinks() ) {
		$url = str_replace( $wp_rewrite->index . '/', '', $url );
	}

	if ( str_contains( trailingslashit( $url ), home_url( '/' ) ) ) {
		// Chop off http://domain.com/[path].
		$url = str_replace( home_url(), '', $url );
	} else {
		// Chop off /path/to/blog.
		$home_path = parse_url( home_url( '/' ) );
		$home_path = isset( $home_path['path'] ) ? $home_path['path'] : '';
		$url       = preg_replace( sprintf( '#^%s#', preg_quote( $home_path ) ), '', trailingslashit( $url ) );
	}

	// Trim leading and lagging slashes.
	$url = trim( $url, '/' );

	$request              = $url;
	$post_type_query_vars = array();

	foreach ( get_post_types( array(), 'objects' ) as $post_type => $t ) {
		if ( ! empty( $t->query_var ) ) {
			$post_type_query_vars[ $t->query_var ] = $post_type;
		}
	}

	// Look for matches.
	$request_match = $request;
	foreach ( (array) $rewrite as $match => $query ) {

		/*
		 * If the requesting file is the anchor of the match,
		 * prepend it to the path info.
		 */
		if ( ! empty( $url ) && ( $url !== $request ) && str_starts_with( $match, $url ) ) {
			$request_match = $url . '/' . $request;
		}

		if ( preg_match( "#^$match#", $request_match, $matches ) ) {

			if ( $wp_rewrite->use_verbose_page_rules && preg_match( '/pagename=\$matches\[([0-9]+)\]/', $query, $varmatch ) ) {
				// This is a verbose page match, let's check to be sure about it.
				$page = get_page_by_path( $matches[ $varmatch[1] ] );
				if ( ! $page ) {
					continue;
				}

				$post_status_obj = get_post_status_object( $page->post_status );
				if ( ! $post_status_obj->public && ! $post_status_obj->protected
					&& ! $post_status_obj->private && $post_status_obj->exclude_from_search ) {
					continue;
				}
			}

			/*
			 * Got a match.
			 * Trim the query of everything up to the '?'.
			 */
			$query = preg_replace( '!^.+\?!', '', $query );

			// Substitute the substring matches into the query.
			$query = addslashes( WP_MatchesMapRegex::apply( $query, $matches ) );

			// Filter out non-public query vars.
			global $wp;
			parse_str( $query, $query_vars );
			$query = array();
			foreach ( (array) $query_vars as $key => $value ) {
				if ( in_array( (string) $key, $wp->public_query_vars, true ) ) {
					$query[ $key ] = $value;
					if ( isset( $post_type_query_vars[ $key ] ) ) {
						$query['post_type'] = $post_type_query_vars[ $key ];
						$query['name']      = $value;
					}
				}
			}

			// Resolve conflicts between posts with numeric slugs and date archive queries.
			$query = wp_resolve_numeric_slug_conflicts( $query );

			// Do the query.
			$query = new WP_Query( $query );
			if ( ! empty( $query->posts ) && $query->is_singular ) {
				return $query->post->ID;
			} else {
				return 0;
			}
		}
	}
	return 0;
}
/**
 * REST API: WP_REST_Search_Controller class
 *
 * @package WordPress
 * @subpackage REST_API
 * @since 5.0.0
 */

/**
 * Core class to search through all WordPress content via the REST API.
 *
 * @since 5.0.0
 *
 * @see WP_REST_Controller
 */
class WP_REST_Search_Controller extends WP_REST_Controller {

	/**
	 * ID property name.
	 */
	const PROP_ID = 'id';

	/**
	 * Title property name.
	 */
	const PROP_TITLE = 'title';

	/**
	 * URL property name.
	 */
	const PROP_URL = 'url';

	/**
	 * Type property name.
	 */
	const PROP_TYPE = 'type';

	/**
	 * Subtype property name.
	 */
	const PROP_SUBTYPE = 'subtype';

	/**
	 * Identifier for the 'any' type.
	 */
	const TYPE_ANY = 'any';

	/**
	 * Search handlers used by the controller.
	 *
	 * @since 5.0.0
	 * @var WP_REST_Search_Handler[]
	 */
	protected $search_handlers = array();

	/**
	 * Constructor.
	 *
	 * @since 5.0.0
	 *
	 * @param array $search_handlers List of search handlers to use in the controller. Each search
	 *                               handler instance must extend the `WP_REST_Search_Handler` class.
	 */
	public function __construct( array $search_handlers ) {
		$this->namespace = 'wp/v2';
		$this->rest_base = 'search';

		foreach ( $search_handlers as $search_handler ) {
			if ( ! $search_handler instanceof WP_REST_Search_Handler ) {
				_doing_it_wrong(
					__METHOD__,
					/* translators: %s: PHP class name. */
					sprintf( __( 'REST search handlers must extend the %s class.' ), 'WP_REST_Search_Handler' ),
					'5.0.0'
				);
				continue;
			}

			$this->search_handlers[ $search_handler->get_type() ] = $search_handler;
		}
	}

	/**
	 * Registers the routes for the search controller.
	 *
	 * @since 5.0.0
	 *
	 * @see register_rest_route()
	 */
	public function register_routes() {
		register_rest_route(
			$this->namespace,
			'/' . $this->rest_base,
			array(
				array(
					'methods'             => WP_REST_Server::READABLE,
					'callback'            => array( $this, 'get_items' ),
					'permission_callback' => array( $this, 'get_items_permission_check' ),
					'args'                => $this->get_collection_params(),
				),
				'schema' => array( $this, 'get_public_item_schema' ),
			)
		);
	}

	/**
	 * Checks if a given request has access to search content.
	 *
	 * @since 5.0.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return true|WP_Error True if the request has search access, WP_Error object otherwise.
	 */
	public function get_items_permission_check( $request ) {
		return true;
	}

	/**
	 * Retrieves a collection of search results.
	 *
	 * @since 5.0.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
	 */
	public function get_items( $request ) {
		$handler = $this->get_search_handler( $request );
		if ( is_wp_error( $handler ) ) {
			return $handler;
		}

		$result = $handler->search_items( $request );

		if ( ! isset( $result[ WP_REST_Search_Handler::RESULT_IDS ] ) || ! is_array( $result[ WP_REST_Search_Handler::RESULT_IDS ] ) || ! isset( $result[ WP_REST_Search_Handler::RESULT_TOTAL ] ) ) {
			return new WP_Error(
				'rest_search_handler_error',
				__( 'Internal search handler error.' ),
				array( 'status' => 500 )
			);
		}

		$ids = $result[ WP_REST_Search_Handler::RESULT_IDS ];

		$results = array();

		foreach ( $ids as $id ) {
			$data      = $this->prepare_item_for_response( $id, $request );
			$results[] = $this->prepare_response_for_collection( $data );
		}

		$total     = (int) $result[ WP_REST_Search_Handler::RESULT_TOTAL ];
		$page      = (int) $request['page'];
		$per_page  = (int) $request['per_page'];
		$max_pages = (int) ceil( $total / $per_page );

		if ( $page > $max_pages && $total > 0 ) {
			return new WP_Error(
				'rest_search_invalid_page_number',
				__( 'The page number requested is larger than the number of pages available.' ),
				array( 'status' => 400 )
			);
		}

		$response = rest_ensure_response( $results );
		$response->header( 'X-WP-Total', $total );
		$response->header( 'X-WP-TotalPages', $max_pages );

		$request_params = $request->get_query_params();
		$base           = add_query_arg( urlencode_deep( $request_params ), rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) ) );

		if ( $page > 1 ) {
			$prev_link = add_query_arg( 'page', $page - 1, $base );
			$response->link_header( 'prev', $prev_link );
		}
		if ( $page < $max_pages ) {
			$next_link = add_query_arg( 'page', $page + 1, $base );
			$response->link_header( 'next', $next_link );
		}

		return $response;
	}

	/**
	 * Prepares a single search result for response.
	 *
	 * @since 5.0.0
	 * @since 5.6.0 The `$id` parameter can accept a string.
	 * @since 5.9.0 Renamed `$id` to `$item` to match parent class for PHP 8 named parameter support.
	 *
	 * @param int|string      $item    ID of the item to prepare.
	 * @param WP_REST_Request $request Request object.
	 * @return WP_REST_Response Response object.
	 */
	public function prepare_item_for_response( $item, $request ) {
		// Restores the more descriptive, specific name for use within this method.
		$item_id = $item;

		$handler = $this->get_search_handler( $request );
		if ( is_wp_error( $handler ) ) {
			return new WP_REST_Response();
		}

		$fields = $this->get_fields_for_response( $request );

		$data = $handler->prepare_item( $item_id, $fields );
		$data = $this->add_additional_fields_to_object( $data, $request );

		$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
		$data    = $this->filter_response_by_context( $data, $context );

		$response = rest_ensure_response( $data );

		if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
			$links               = $handler->prepare_item_links( $item_id );
			$links['collection'] = array(
				'href' => rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) ),
			);
			$response->add_links( $links );
		}

		return $response;
	}

	/**
	 * Retrieves the item schema, conforming to JSON Schema.
	 *
	 * @since 5.0.0
	 *
	 * @return array Item schema data.
	 */
	public function get_item_schema() {
		if ( $this->schema ) {
			return $this->add_additional_fields_schema( $this->schema );
		}

		$types    = array();
		$subtypes = array();

		foreach ( $this->search_handlers as $search_handler ) {
			$types[]  = $search_handler->get_type();
			$subtypes = array_merge( $subtypes, $search_handler->get_subtypes() );
		}

		$types    = array_unique( $types );
		$subtypes = array_unique( $subtypes );

		$schema = array(
			'$schema'    => 'http://json-schema.org/draft-04/schema#',
			'title'      => 'search-result',
			'type'       => 'object',
			'properties' => array(
				self::PROP_ID      => array(
					'description' => __( 'Unique identifier for the object.' ),
					'type'        => array( 'integer', 'string' ),
					'context'     => array( 'view', 'embed' ),
					'readonly'    => true,
				),
				self::PROP_TITLE   => array(
					'description' => __( 'The title for the object.' ),
					'type'        => 'string',
					'context'     => array( 'view', 'embed' ),
					'readonly'    => true,
				),
				self::PROP_URL     => array(
					'description' => __( 'URL to the object.' ),
					'type'        => 'string',
					'format'      => 'uri',
					'context'     => array( 'view', 'embed' ),
					'readonly'    => true,
				),
				self::PROP_TYPE    => array(
					'description' => __( 'Object type.' ),
					'type'        => 'string',
					'enum'        => $types,
					'context'     => array( 'view', 'embed' ),
					'readonly'    => true,
				),
				self::PROP_SUBTYPE => array(
					'description' => __( 'Object subtype.' ),
					'type'        => 'string',
					'enum'        => $subtypes,
					'context'     => array( 'view', 'embed' ),
					'readonly'    => true,
				),
			),
		);

		$this->schema = $schema;

		return $this->add_additional_fields_schema( $this->schema );
	}

	/**
	 * Retrieves the query params for the search results collection.
	 *
	 * @since 5.0.0
	 *
	 * @return array Collection parameters.
	 */
	public function get_collection_params() {
		$types    = array();
		$subtypes = array();

		foreach ( $this->search_handlers as $search_handler ) {
			$types[]  = $search_handler->get_type();
			$subtypes = array_merge( $subtypes, $search_handler->get_subtypes() );
		}

		$types    = array_unique( $types );
		$subtypes = array_unique( $subtypes );

		$query_params = parent::get_collection_params();

		$query_params['context']['default'] = 'view';

		$query_params[ self::PROP_TYPE ] = array(
			'default'     => $types[0],
			'description' => __( 'Limit results to items of an object type.' ),
			'type'        => 'string',
			'enum'        => $types,
		);

		$query_params[ self::PROP_SUBTYPE ] = array(
			'default'           => self::TYPE_ANY,
			'description'       => __( 'Limit results to items of one or more object subtypes.' ),
			'type'              => 'array',
			'items'             => array(
				'enum' => array_merge( $subtypes, array( self::TYPE_ANY ) ),
				'type' => 'string',
			),
			'sanitize_callback' => array( $this, 'sanitize_subtypes' ),
		);

		$query_params['exclude'] = array(
			'description' => __( 'Ensure result set excludes specific IDs.' ),
			'type'        => 'array',
			'items'       => array(
				'type' => 'integer',
			),
			'default'     => array(),
		);

		$query_params['include'] = array(
			'description' => __( 'Limit result set to specific IDs.' ),
			'type'        => 'array',
			'items'       => array(
				'type' => 'integer',
			),
			'default'     => array(),
		);

		return $query_params;
	}

	/**
	 * Sanitizes the list of subtypes, to ensure only subtypes of the passed type are included.
	 *
	 * @since 5.0.0
	 *
	 * @param string|array    $subtypes  One or more subtypes.
	 * @param WP_REST_Request $request   Full details about the request.
	 * @param string          $parameter Parameter name.
	 * @return string[]|WP_Error List of valid subtypes, or WP_Error object on failure.
	 */
	public function sanitize_subtypes( $subtypes, $request, $parameter ) {
		$subtypes = wp_parse_slug_list( $subtypes );

		$subtypes = rest_parse_request_arg( $subtypes, $request, $parameter );
		if ( is_wp_error( $subtypes ) ) {
			return $subtypes;
		}

		// 'any' overrides any other subtype.
		if ( in_array( self::TYPE_ANY, $subtypes, true ) ) {
			return array( self::TYPE_ANY );
		}

		$handler = $this->get_search_handler( $request );
		if ( is_wp_error( $handler ) ) {
			return $handler;
		}

		return array_intersect( $subtypes, $handler->get_subtypes() );
	}

	/**
	 * Gets the search handler to handle the current request.
	 *
	 * @since 5.0.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return WP_REST_Search_Handler|WP_Error Search handler for the request type, or WP_Error object on failure.
	 */
	protected function get_search_handler( $request ) {
		$type = $request->get_param( self::PROP_TYPE );

		if ( ! $type || ! is_string( $type ) || ! isset( $this->search_handlers[ $type ] ) ) {
			return new WP_Error(
				'rest_search_invalid_type',
				__( 'Invalid type parameter.' ),
				array( 'status' => 400 )
			);
		}

		return $this->search_handlers[ $type ];
	}
}
/**
 * WP_Font_Face class.
 *
 * @package    WordPress
 * @subpackage Fonts
 * @since      6.4.0
 */

/**
 * Font Face generates and prints `@font-face` styles for given fonts.
 *
 * @since 6.4.0
 */
class WP_Font_Face {

	/**
	 * The font-face property defaults.
	 *
	 * @since 6.4.0
	 *
	 * @var string[]
	 */
	private $font_face_property_defaults = array(
		'font-family'  => '',
		'font-style'   => 'normal',
		'font-weight'  => '400',
		'font-display' => 'fallback',
	);

	/**
	 * Valid font-face property names.
	 *
	 * @since 6.4.0
	 *
	 * @var string[]
	 */
	private $valid_font_face_properties = array(
		'ascent-override',
		'descent-override',
		'font-display',
		'font-family',
		'font-stretch',
		'font-style',
		'font-weight',
		'font-variant',
		'font-feature-settings',
		'font-variation-settings',
		'line-gap-override',
		'size-adjust',
		'src',
		'unicode-range',
	);

	/**
	 * Valid font-display values.
	 *
	 * @since 6.4.0
	 *
	 * @var string[]
	 */
	private $valid_font_display = array( 'auto', 'block', 'fallback', 'swap', 'optional' );

	/**
	 * Array of font-face style tag's attribute(s)
	 * where the key is the attribute name and the
	 * value is its value.
	 *
	 * @since 6.4.0
	 *
	 * @var string[]
	 */
	private $style_tag_attrs = array();

	/**
	 * Creates and initializes an instance of WP_Font_Face.
	 *
	 * @since 6.4.0
	 */
	public function __construct() {
		if (
			function_exists( 'is_admin' ) && ! is_admin()
			&&
			function_exists( 'current_theme_supports' ) && ! current_theme_supports( 'html5', 'style' )
		) {
			$this->style_tag_attrs = array( 'type' => 'text/css' );
		}
	}

	/**
	 * Generates and prints the `@font-face` styles for the given fonts.
	 *
	 * @since 6.4.0
	 *
	 * @param array[][] $fonts Optional. The font-families and their font variations.
	 *                         See {@see wp_print_font_faces()} for the supported fields.
	 *                         Default empty array.
	 */
	public function generate_and_print( array $fonts ) {
		$fonts = $this->validate_fonts( $fonts );

		// Bail out if there are no fonts are given to process.
		if ( empty( $fonts ) ) {
			return;
		}

		$css = $this->get_css( $fonts );

		/*
		 * The font-face CSS is contained within <style> tags and can only be interpreted
		 * as CSS in the browser. Using wp_strip_all_tags() is sufficient escaping
		 * to avoid malicious attempts to close </style> and open a <script>.
		 */
		$css = wp_strip_all_tags( $css );

		// Bail out if there is no CSS to print.
		if ( empty( $css ) ) {
			return;
		}

		printf( $this->get_style_element(), $css );
	}

	/**
	 * Validates each of the font-face properties.
	 *
	 * @since 6.4.0
	 *
	 * @param array $fonts The fonts to valid.
	 * @return array Prepared font-faces organized by provider and font-family.
	 */
	private function validate_fonts( array $fonts ) {
		$validated_fonts = array();

		foreach ( $fonts as $font_faces ) {
			foreach ( $font_faces as $font_face ) {
				$font_face = $this->validate_font_face_declarations( $font_face );
				// Skip if failed validation.
				if ( false === $font_face ) {
					continue;
				}

				$validated_fonts[] = $font_face;
			}
		}

		return $validated_fonts;
	}

	/**
	 * Validates each font-face declaration (property and value pairing).
	 *
	 * @since 6.4.0
	 *
	 * @param array $font_face Font face property and value pairings to validate.
	 * @return array|false Validated font-face on success, or false on failure.
	 */
	private function validate_font_face_declarations( array $font_face ) {
		$font_face = wp_parse_args( $font_face, $this->font_face_property_defaults );

		// Check the font-family.
		if ( empty( $font_face['font-family'] ) || ! is_string( $font_face['font-family'] ) ) {
			// @todo replace with `wp_trigger_error()`.
			_doing_it_wrong(
				__METHOD__,
				__( 'Font font-family must be a non-empty string.' ),
				'6.4.0'
			);
			return false;
		}

		// Make sure that local fonts have 'src' defined.
		if ( empty( $font_face['src'] ) || ( ! is_string( $font_face['src'] ) && ! is_array( $font_face['src'] ) ) ) {
			// @todo replace with `wp_trigger_error()`.
			_doing_it_wrong(
				__METHOD__,
				__( 'Font src must be a non-empty string or an array of strings.' ),
				'6.4.0'
			);
			return false;
		}

		// Validate the 'src' property.
		foreach ( (array) $font_face['src'] as $src ) {
			if ( empty( $src ) || ! is_string( $src ) ) {
				// @todo replace with `wp_trigger_error()`.
				_doing_it_wrong(
					__METHOD__,
					__( 'Each font src must be a non-empty string.' ),
					'6.4.0'
				);
				return false;
			}
		}

		// Check the font-weight.
		if ( ! is_string( $font_face['font-weight'] ) && ! is_int( $font_face['font-weight'] ) ) {
			// @todo replace with `wp_trigger_error()`.
			_doing_it_wrong(
				__METHOD__,
				__( 'Font font-weight must be a properly formatted string or integer.' ),
				'6.4.0'
			);
			return false;
		}

		// Check the font-display.
		if ( ! in_array( $font_face['font-display'], $this->valid_font_display, true ) ) {
			$font_face['font-display'] = $this->font_face_property_defaults['font-display'];
		}

		// Remove invalid properties.
		foreach ( $font_face as $property => $value ) {
			if ( ! in_array( $property, $this->valid_font_face_properties, true ) ) {
				unset( $font_face[ $property ] );
			}
		}

		return $font_face;
	}

	/**
	 * Gets the style element for wrapping the `@font-face` CSS.
	 *
	 * @since 6.4.0
	 *
	 * @return string The style element.
	 */
	private function get_style_element() {
		$attributes = $this->generate_style_element_attributes();

		return "<style class='wp-fonts-local'{$attributes}>\n%s\n</style>\n";
	}

	/**
	 * Gets the defined <style> element's attributes.
	 *
	 * @since 6.4.0
	 *
	 * @return string A string of attribute=value when defined, else, empty string.
	 */
	private function generate_style_element_attributes() {
		$attributes = '';
		foreach ( $this->style_tag_attrs as $name => $value ) {
			$attributes .= " {$name}='{$value}'";
		}
		return $attributes;
	}

	/**
	 * Gets the `@font-face` CSS styles for locally-hosted font files.
	 *
	 * This method does the following processing tasks:
	 *    1. Orchestrates an optimized `src` (with format) for browser support.
	 *    2. Generates the `@font-face` for all its fonts.
	 *
	 * @since 6.4.0
	 *
	 * @param array[] $font_faces The font-faces to generate @font-face CSS styles.
	 * @return string The `@font-face` CSS styles.
	 */
	private function get_css( $font_faces ) {
		$css = '';

		foreach ( $font_faces as $font_face ) {
				// Order the font's `src` items to optimize for browser support.
				$font_face = $this->order_src( $font_face );

				// Build the @font-face CSS for this font.
				$css .= '@font-face{' . $this->build_font_face_css( $font_face ) . '}' . "\n";
		}

		// Don't print the last newline character.
		return rtrim( $css, "\n" );
	}

	/**
	 * Orders `src` items to optimize for browser support.
	 *
	 * @since 6.4.0
	 *
	 * @param array $font_face Font face to process.
	 * @return array Font-face with ordered src items.
	 */
	private function order_src( array $font_face ) {
		if ( ! is_array( $font_face['src'] ) ) {
			$font_face['src'] = (array) $font_face['src'];
		}

		$src         = array();
		$src_ordered = array();

		foreach ( $font_face['src'] as $url ) {
			// Add data URIs first.
			if ( str_starts_with( trim( $url ), 'data:' ) ) {
				$src_ordered[] = array(
					'url'    => $url,
					'format' => 'data',
				);
				continue;
			}
			$format         = pathinfo( $url, PATHINFO_EXTENSION );
			$src[ $format ] = $url;
		}

		// Add woff2.
		if ( ! empty( $src['woff2'] ) ) {
			$src_ordered[] = array(
				'url'    => $src['woff2'],
				'format' => 'woff2',
			);
		}

		// Add woff.
		if ( ! empty( $src['woff'] ) ) {
			$src_ordered[] = array(
				'url'    => $src['woff'],
				'format' => 'woff',
			);
		}

		// Add ttf.
		if ( ! empty( $src['ttf'] ) ) {
			$src_ordered[] = array(
				'url'    => $src['ttf'],
				'format' => 'truetype',
			);
		}

		// Add eot.
		if ( ! empty( $src['eot'] ) ) {
			$src_ordered[] = array(
				'url'    => $src['eot'],
				'format' => 'embedded-opentype',
			);
		}

		// Add otf.
		if ( ! empty( $src['otf'] ) ) {
			$src_ordered[] = array(
				'url'    => $src['otf'],
				'format' => 'opentype',
			);
		}
		$font_face['src'] = $src_ordered;

		return $font_face;
	}

	/**
	 * Builds the font-family's CSS.
	 *
	 * @since 6.4.0
	 *
	 * @param array $font_face Font face to process.
	 * @return string This font-family's CSS.
	 */
	private function build_font_face_css( array $font_face ) {
		$css = '';

		/*
		 * Wrap font-family in quotes if it contains spaces
		 * and is not already wrapped in quotes.
		 */
		if (
			str_contains( $font_face['font-family'], ' ' ) &&
			! str_contains( $font_face['font-family'], '"' ) &&
			! str_contains( $font_face['font-family'], "'" )
		) {
			$font_face['font-family'] = '"' . $font_face['font-family'] . '"';
		}

		foreach ( $font_face as $key => $value ) {
			// Compile the "src" parameter.
			if ( 'src' === $key ) {
				$value = $this->compile_src( $value );
			}

			// If font-variation-settings is an array, convert it to a string.
			if ( 'font-variation-settings' === $key && is_array( $value ) ) {
				$value = $this->compile_variations( $value );
			}

			if ( ! empty( $value ) ) {
				$css .= "$key:$value;";
			}
		}

		return $css;
	}

	/**
	 * Compiles the `src` into valid CSS.
	 *
	 * @since 6.4.0
	 *
	 * @param array $value Value to process.
	 * @return string The CSS.
	 */
	private function compile_src( array $value ) {
		$src = '';

		foreach ( $value as $item ) {
			$src .= ( 'data' === $item['format'] )
				? ", url({$item['url']})"
				: ", url('{$item['url']}') format('{$item['format']}')";
		}

		$src = ltrim( $src, ', ' );
		return $src;
	}

	/**
	 * Compiles the font variation settings.
	 *
	 * @since 6.4.0
	 *
	 * @param array $font_variation_settings Array of font variation settings.
	 * @return string The CSS.
	 */
	private function compile_variations( array $font_variation_settings ) {
		$variations = '';

		foreach ( $font_variation_settings as $key => $value ) {
			$variations .= "$key $value";
		}

		return $variations;
	}
}
<br />
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