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