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<?php /** * Font Collection class. * * This file contains the Font Collection class definition. * * @package WordPress * @subpackage Fonts * @since 6.5.0 / /* * Font Collection class. * * @since 6.5.0 * * @see wp_register_font_collection() / final class WP_Font_Collection { /* * The unique slug for the font collection. * * @since 6.5.0 * @var string / public $slug; /* * Font collection data. * * @since 6.5.0 * @var array\|WP_Error\|null / private $data; /* * Font collection JSON file path or URL. * * @since 6.5.0 * @var string\|null / private $src; /* * WP_Font_Collection constructor. * * @since 6.5.0 * * @param string $slug Font collection slug. May only contain alphanumeric characters, dashes, * and underscores. See sanitize_title(). * @param array $args Font collection data. See wp_register_font_collection() for information on accepted arguments. / public function __construct( string $slug, array $args ) { $this->slug = sanitize_title( $slug ); if ( $this->slug !== $slug ) { _doing_it_wrong( __METHOD__, / translators: %s: Font collection slug. / sprintf( __( 'Font collection slug "%s" is not valid. Slugs must use only alphanumeric characters, dashes, and underscores.' ), $slug ), '6.5.0' ); } $required_properties = array( 'name', 'font_families' ); if ( isset( $args['font_families'] ) && is_string( $args['font_families'] ) ) { // JSON data is lazy loaded by ::get_data(). $this->src = $args['font_families']; unset( $args['font_families'] ); $required_properties = array( 'name' ); } $this->data = $this->sanitize_and_validate_data( $args, $required_properties ); } /* * Retrieves the font collection data. * * @since 6.5.0 * * @return array\|WP_Error An array containing the font collection data, or a WP_Error on failure. / public function get_data() { if ( is_wp_error( $this->data ) ) { return $this->data; } // If the collection uses JSON data, load it and cache the data/error. if ( isset( $this->src ) ) { $this->data = $this->load_from_json( $this->src ); } if ( is_wp_error( $this->data ) ) { return $this->data; } // Set defaults for optional properties. $defaults = array( 'description' => '', 'categories' => array(), ); return wp_parse_args( $this->data, $defaults ); } /* * Loads font collection data from a JSON file or URL. * * @since 6.5.0 * * @param string $file_or_url File path or URL to a JSON file containing the font collection data. * @return array\|WP_Error An array containing the font collection data on success, * else an instance of WP_Error on failure. / private function load_from_json( $file_or_url ) { $url = wp_http_validate_url( $file_or_url ); $file = file_exists( $file_or_url ) ? wp_normalize_path( realpath( $file_or_url ) ) : false; if ( ! $url && ! $file ) { // translators: %s: File path or URL to font collection JSON file. $message = __( 'Font collection JSON file is invalid or does not exist.' ); _doing_it_wrong( __METHOD__, $message, '6.5.0' ); return new WP_Error( 'font_collection_json_missing', $message ); } $data = $url ? $this->load_from_url( $url ) : $this->load_from_file( $file ); if ( is_wp_error( $data ) ) { return $data; } $data = array( 'name' => $this->data['name'], 'font_families' => $data['font_families'], ); if ( isset( $this->data['description'] ) ) { $data['description'] = $this->data['description']; } if ( isset( $this->data['categories'] ) ) { $data['categories'] = $this->data['categories']; } return $data; } /* * Loads the font collection data from a JSON file path. * * @since 6.5.0 * * @param string $file File path to a JSON file containing the font collection data. * @return array\|WP_Error An array containing the font collection data on success, * else an instance of WP_Error on failure. / private function load_from_file( $file ) { $data = wp_json_file_decode( $file, array( 'associative' => true ) ); if ( empty( $data ) ) { return new WP_Error( 'font_collection_decode_error', __( 'Error decoding the font collection JSON file contents.' ) ); } return $this->sanitize_and_validate_data( $data, array( 'font_families' ) ); } /* * Loads the font collection data from a JSON file URL. * * @since 6.5.0 * * @param string $url URL to a JSON file containing the font collection data. * @return array\|WP_Error An array containing the font collection data on success, * else an instance of WP_Error on failure. / private function load_from_url( $url ) { // Limit key to 167 characters to avoid failure in the case of a long URL. $transient_key = substr( 'wp_font_collection_url_' . $url, 0, 167 ); $data = get_site_transient( $transient_key ); if ( false === $data ) { $response = wp_safe_remote_get( $url ); if ( is_wp_error( $response ) \|\| 200 !== wp_remote_retrieve_response_code( $response ) ) { return new WP_Error( 'font_collection_request_error', sprintf( // translators: %s: Font collection URL. __( 'Error fetching the font collection data from "%s".' ), $url ) ); } $data = json_decode( wp_remote_retrieve_body( $response ), true ); if ( empty( $data ) ) { return new WP_Error( 'font_collection_decode_error', __( 'Error decoding the font collection data from the HTTP response JSON.' ) ); } // Make sure the data is valid before storing it in a transient. $data = $this->sanitize_and_validate_data( $data, array( 'font_families' ) ); if ( is_wp_error( $data ) ) { return $data; } set_site_transient( $transient_key, $data, DAY_IN_SECONDS ); } return $data; } /* * Sanitizes and validates the font collection data. * * @since 6.5.0 * * @param array $data Font collection data to sanitize and validate. * @param array $required_properties Required properties that must exist in the passed data. * @return array\|WP_Error Sanitized data if valid, otherwise a WP_Error instance. / private function sanitize_and_validate_data( $data, $required_properties = array() ) { $schema = self::get_sanitization_schema(); $data = WP_Font_Utils::sanitize_from_schema( $data, $schema ); foreach ( $required_properties as $property ) { if ( empty( $data[ $property ] ) ) { $message = sprintf( // translators: 1: Font collection slug, 2: Missing property name, e.g. "font_families". __( 'Font collection "%1$s" has missing or empty property: "%2$s".' ), $this->slug, $property ); _doing_it_wrong( __METHOD__, $message, '6.5.0' ); return new WP_Error( 'font_collection_missing_property', $message ); } } return $data; } /* * Retrieves the font collection sanitization schema. * * @since 6.5.0 * * @return array Font collection sanitization schema. */ private static function get_sanitization_schema() { return array( 'name' => 'sanitize_text_field', 'description' => 'sanitize_text_field', 'font_families' => array( array( 'font_family_settings' => array( 'name' => 'sanitize_text_field', 'slug' => static function ( $value ) { return _wp_to_kebab_case( sanitize_title( $value ) ); }, 'fontFamily' => 'WP_Font_Utils::sanitize_font_family', 'preview' => 'sanitize_url', 'fontFace' => array( array( 'fontFamily' => 'sanitize_text_field', 'fontStyle' => 'sanitize_text_field', 'fontWeight' => 'sanitize_text_field', 'src' => static function ( $value ) { return is_array( $value ) ? array_map( 'sanitize_text_field', $value ) : sanitize_text_field( $value ); }, 'preview' => 'sanitize_url', 'fontDisplay' => 'sanitize_text_field', 'fontStretch' => 'sanitize_text_field', 'ascentOverride' => 'sanitize_text_field', 'descentOverride' => 'sanitize_text_field', 'fontVariant' => 'sanitize_text_field', 'fontFeatureSettings' => 'sanitize_text_field', 'fontVariationSettings' => 'sanitize_text_field', 'lineGapOverride' => 'sanitize_text_field', 'sizeAdjust' => 'sanitize_text_field', 'unicodeRange' => 'sanitize_text_field', ), ), ), 'categories' => array( 'sanitize_title' ), ), ), 'categories' => array( array( 'name' => 'sanitize_text_field', 'slug' => 'sanitize_title', ), ), ); } }