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/wp-includes/rest-api/endpoints/ -> class-wp-rest-font-faces-controller.php (source)

   1  <?php
   2  /**
   3   * REST API: WP_REST_Font_Faces_Controller class
   4   *
   5   * @package WordPress
   6   * @subpackage REST_API
   7   * @since 6.5.0
   8   */
   9  
  10  /**
  11   * Class to access font faces through the REST API.
  12   */
  13  class WP_REST_Font_Faces_Controller extends WP_REST_Posts_Controller {
  14  
  15      /**
  16       * The latest version of theme.json schema supported by the controller.
  17       *
  18       * @since 6.5.0
  19       * @var int
  20       */
  21      const LATEST_THEME_JSON_VERSION_SUPPORTED = 3;
  22  
  23      /**
  24       * Whether the controller supports batching.
  25       *
  26       * @since 6.5.0
  27       * @var false
  28       */
  29      protected $allow_batch = false;
  30  
  31      /**
  32       * Registers the routes for posts.
  33       *
  34       * @since 6.5.0
  35       *
  36       * @see register_rest_route()
  37       */
  38  	public function register_routes() {
  39          register_rest_route(
  40              $this->namespace,
  41              '/' . $this->rest_base,
  42              array(
  43                  'args'   => array(
  44                      'font_family_id' => array(
  45                          'description' => __( 'The ID for the parent font family of the font face.' ),
  46                          'type'        => 'integer',
  47                          'required'    => true,
  48                      ),
  49                  ),
  50                  array(
  51                      'methods'             => WP_REST_Server::READABLE,
  52                      'callback'            => array( $this, 'get_items' ),
  53                      'permission_callback' => array( $this, 'get_items_permissions_check' ),
  54                      'args'                => $this->get_collection_params(),
  55                  ),
  56                  array(
  57                      'methods'             => WP_REST_Server::CREATABLE,
  58                      'callback'            => array( $this, 'create_item' ),
  59                      'permission_callback' => array( $this, 'create_item_permissions_check' ),
  60                      'args'                => $this->get_create_params(),
  61                  ),
  62                  'schema' => array( $this, 'get_public_item_schema' ),
  63              )
  64          );
  65  
  66          register_rest_route(
  67              $this->namespace,
  68              '/' . $this->rest_base . '/(?P<id>[\d]+)',
  69              array(
  70                  'args'   => array(
  71                      'font_family_id' => array(
  72                          'description' => __( 'The ID for the parent font family of the font face.' ),
  73                          'type'        => 'integer',
  74                          'required'    => true,
  75                      ),
  76                      'id'             => array(
  77                          'description' => __( 'Unique identifier for the font face.' ),
  78                          'type'        => 'integer',
  79                          'required'    => true,
  80                      ),
  81                  ),
  82                  array(
  83                      'methods'             => WP_REST_Server::READABLE,
  84                      'callback'            => array( $this, 'get_item' ),
  85                      'permission_callback' => array( $this, 'get_item_permissions_check' ),
  86                      'args'                => array(
  87                          'context' => $this->get_context_param( array( 'default' => 'view' ) ),
  88                      ),
  89                  ),
  90                  array(
  91                      'methods'             => WP_REST_Server::DELETABLE,
  92                      'callback'            => array( $this, 'delete_item' ),
  93                      'permission_callback' => array( $this, 'delete_item_permissions_check' ),
  94                      'args'                => array(
  95                          'force' => array(
  96                              'type'        => 'boolean',
  97                              'default'     => false,
  98                              'description' => __( 'Whether to bypass Trash and force deletion.', 'default' ),
  99                          ),
 100                      ),
 101                  ),
 102                  'schema' => array( $this, 'get_public_item_schema' ),
 103              )
 104          );
 105      }
 106  
 107      /**
 108       * Checks if a given request has access to font faces.
 109       *
 110       * @since 6.5.0
 111       *
 112       * @param WP_REST_Request $request Full details about the request.
 113       * @return true|WP_Error True if the request has read access, WP_Error object otherwise.
 114       */
 115  	public function get_items_permissions_check( $request ) {
 116          $post_type = get_post_type_object( $this->post_type );
 117  
 118          if ( ! current_user_can( $post_type->cap->read ) ) {
 119              return new WP_Error(
 120                  'rest_cannot_read',
 121                  __( 'Sorry, you are not allowed to access font faces.' ),
 122                  array( 'status' => rest_authorization_required_code() )
 123              );
 124          }
 125  
 126          return true;
 127      }
 128  
 129      /**
 130       * Checks if a given request has access to a font face.
 131       *
 132       * @since 6.5.0
 133       *
 134       * @param WP_REST_Request $request Full details about the request.
 135       * @return true|WP_Error True if the request has read access, WP_Error object otherwise.
 136       */
 137  	public function get_item_permissions_check( $request ) {
 138          $post = $this->get_post( $request['id'] );
 139          if ( is_wp_error( $post ) ) {
 140              return $post;
 141          }
 142  
 143          if ( ! current_user_can( 'read_post', $post->ID ) ) {
 144              return new WP_Error(
 145                  'rest_cannot_read',
 146                  __( 'Sorry, you are not allowed to access this font face.' ),
 147                  array( 'status' => rest_authorization_required_code() )
 148              );
 149          }
 150  
 151          return true;
 152      }
 153  
 154      /**
 155       * Validates settings when creating a font face.
 156       *
 157       * @since 6.5.0
 158       *
 159       * @param string          $value   Encoded JSON string of font face settings.
 160       * @param WP_REST_Request $request Request object.
 161       * @return true|WP_Error True if the settings are valid, otherwise a WP_Error object.
 162       */
 163  	public function validate_create_font_face_settings( $value, $request ) {
 164          $settings = json_decode( $value, true );
 165  
 166          // Check settings string is valid JSON.
 167          if ( null === $settings ) {
 168              return new WP_Error(
 169                  'rest_invalid_param',
 170                  __( 'font_face_settings parameter must be a valid JSON string.' ),
 171                  array( 'status' => 400 )
 172              );
 173          }
 174  
 175          // Check that the font face settings match the theme.json schema.
 176          $schema             = $this->get_item_schema()['properties']['font_face_settings'];
 177          $has_valid_settings = rest_validate_value_from_schema( $settings, $schema, 'font_face_settings' );
 178  
 179          if ( is_wp_error( $has_valid_settings ) ) {
 180              $has_valid_settings->add_data( array( 'status' => 400 ) );
 181              return $has_valid_settings;
 182          }
 183  
 184          // Check that none of the required settings are empty values.
 185          $required = $schema['required'];
 186          foreach ( $required as $key ) {
 187              if ( isset( $settings[ $key ] ) && ! $settings[ $key ] ) {
 188                  return new WP_Error(
 189                      'rest_invalid_param',
 190                      /* translators: %s: Name of the missing font face settings parameter, e.g. "font_face_settings[src]". */
 191                      sprintf( __( '%s cannot be empty.' ), "font_face_setting[ $key ]" ),
 192                      array( 'status' => 400 )
 193                  );
 194              }
 195          }
 196  
 197          $srcs  = is_array( $settings['src'] ) ? $settings['src'] : array( $settings['src'] );
 198          $files = $request->get_file_params();
 199  
 200          foreach ( $srcs as $src ) {
 201              // Check that each src is a non-empty string.
 202              $src = ltrim( $src );
 203              if ( empty( $src ) ) {
 204                  return new WP_Error(
 205                      'rest_invalid_param',
 206                      /* translators: %s: Font face source parameter name: "font_face_settings[src]". */
 207                      sprintf( __( '%s values must be non-empty strings.' ), 'font_face_settings[src]' ),
 208                      array( 'status' => 400 )
 209                  );
 210              }
 211  
 212              // Check that srcs are valid URLs or file references.
 213              if ( false === wp_http_validate_url( $src ) && ! isset( $files[ $src ] ) ) {
 214                  return new WP_Error(
 215                      'rest_invalid_param',
 216                      /* translators: 1: Font face source parameter name: "font_face_settings[src]", 2: The invalid src value. */
 217                      sprintf( __( '%1$s value "%2$s" must be a valid URL or file reference.' ), 'font_face_settings[src]', $src ),
 218                      array( 'status' => 400 )
 219                  );
 220              }
 221          }
 222  
 223          // Check that each file in the request references a src in the settings.
 224          foreach ( array_keys( $files ) as $file ) {
 225              if ( ! in_array( $file, $srcs, true ) ) {
 226                  return new WP_Error(
 227                      'rest_invalid_param',
 228                      /* translators: 1: File key (e.g. "file-0") in the request data, 2: Font face source parameter name: "font_face_settings[src]". */
 229                      sprintf( __( 'File %1$s must be used in %2$s.' ), $file, 'font_face_settings[src]' ),
 230                      array( 'status' => 400 )
 231                  );
 232              }
 233          }
 234  
 235          return true;
 236      }
 237  
 238      /**
 239       * Sanitizes the font face settings when creating a font face.
 240       *
 241       * @since 6.5.0
 242       *
 243       * @param string $value Encoded JSON string of font face settings.
 244       * @return array Decoded and sanitized array of font face settings.
 245       */
 246  	public function sanitize_font_face_settings( $value ) {
 247          // Settings arrive as stringified JSON, since this is a multipart/form-data request.
 248          $settings = json_decode( $value, true );
 249          $schema   = $this->get_item_schema()['properties']['font_face_settings']['properties'];
 250  
 251          // Sanitize settings based on callbacks in the schema.
 252          foreach ( $settings as $key => $value ) {
 253              $sanitize_callback = $schema[ $key ]['arg_options']['sanitize_callback'];
 254              $settings[ $key ]  = call_user_func( $sanitize_callback, $value );
 255          }
 256  
 257          return $settings;
 258      }
 259  
 260      /**
 261       * Retrieves a collection of font faces within the parent font family.
 262       *
 263       * @since 6.5.0
 264       *
 265       * @param WP_REST_Request $request Full details about the request.
 266       * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
 267       */
 268  	public function get_items( $request ) {
 269          $font_family = $this->get_parent_font_family_post( $request['font_family_id'] );
 270          if ( is_wp_error( $font_family ) ) {
 271              return $font_family;
 272          }
 273  
 274          return parent::get_items( $request );
 275      }
 276  
 277      /**
 278       * Retrieves a single font face within the parent font family.
 279       *
 280       * @since 6.5.0
 281       *
 282       * @param WP_REST_Request $request Full details about the request.
 283       * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
 284       */
 285  	public function get_item( $request ) {
 286          $post = $this->get_post( $request['id'] );
 287          if ( is_wp_error( $post ) ) {
 288              return $post;
 289          }
 290  
 291          // Check that the font face has a valid parent font family.
 292          $font_family = $this->get_parent_font_family_post( $request['font_family_id'] );
 293          if ( is_wp_error( $font_family ) ) {
 294              return $font_family;
 295          }
 296  
 297          if ( (int) $font_family->ID !== (int) $post->post_parent ) {
 298              return new WP_Error(
 299                  'rest_font_face_parent_id_mismatch',
 300                  /* translators: %d: A post id. */
 301                  sprintf( __( 'The font face does not belong to the specified font family with id of "%d".' ), $font_family->ID ),
 302                  array( 'status' => 404 )
 303              );
 304          }
 305  
 306          return parent::get_item( $request );
 307      }
 308  
 309      /**
 310       * Creates a font face for the parent font family.
 311       *
 312       * @since 6.5.0
 313       *
 314       * @param WP_REST_Request $request Full details about the request.
 315       * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
 316       */
 317  	public function create_item( $request ) {
 318          $font_family = $this->get_parent_font_family_post( $request['font_family_id'] );
 319          if ( is_wp_error( $font_family ) ) {
 320              return $font_family;
 321          }
 322  
 323          // Settings have already been decoded by ::sanitize_font_face_settings().
 324          $settings    = $request->get_param( 'font_face_settings' );
 325          $file_params = $request->get_file_params();
 326  
 327          // Check that the necessary font face properties are unique.
 328          $query = new WP_Query(
 329              array(
 330                  'post_type'              => $this->post_type,
 331                  'posts_per_page'         => 1,
 332                  'title'                  => WP_Font_Utils::get_font_face_slug( $settings ),
 333                  'update_post_meta_cache' => false,
 334                  'update_post_term_cache' => false,
 335              )
 336          );
 337          if ( ! empty( $query->posts ) ) {
 338              return new WP_Error(
 339                  'rest_duplicate_font_face',
 340                  __( 'A font face matching those settings already exists.' ),
 341                  array( 'status' => 400 )
 342              );
 343          }
 344  
 345          // Move the uploaded font asset from the temp folder to the fonts directory.
 346          if ( ! function_exists( 'wp_handle_upload' ) ) {
 347              require_once  ABSPATH . 'wp-admin/includes/file.php';
 348          }
 349  
 350          $srcs           = is_string( $settings['src'] ) ? array( $settings['src'] ) : $settings['src'];
 351          $processed_srcs = array();
 352          $font_file_meta = array();
 353  
 354          foreach ( $srcs as $src ) {
 355              // If src not a file reference, use it as is.
 356              if ( ! isset( $file_params[ $src ] ) ) {
 357                  $processed_srcs[] = $src;
 358                  continue;
 359              }
 360  
 361              $file      = $file_params[ $src ];
 362              $font_file = $this->handle_font_file_upload( $file );
 363              if ( is_wp_error( $font_file ) ) {
 364                  return $font_file;
 365              }
 366  
 367              $processed_srcs[] = $font_file['url'];
 368              $font_file_meta[] = $this->relative_fonts_path( $font_file['file'] );
 369          }
 370  
 371          // Store the updated settings for prepare_item_for_database to use.
 372          $settings['src'] = count( $processed_srcs ) === 1 ? $processed_srcs[0] : $processed_srcs;
 373          $request->set_param( 'font_face_settings', $settings );
 374  
 375          // Ensure that $settings data is slashed, so values with quotes are escaped.
 376          // WP_REST_Posts_Controller::create_item uses wp_slash() on the post_content.
 377          $font_face_post = parent::create_item( $request );
 378  
 379          if ( is_wp_error( $font_face_post ) ) {
 380              return $font_face_post;
 381          }
 382  
 383          $font_face_id = $font_face_post->data['id'];
 384  
 385          foreach ( $font_file_meta as $font_file_path ) {
 386              add_post_meta( $font_face_id, '_wp_font_face_file', $font_file_path );
 387          }
 388  
 389          return $font_face_post;
 390      }
 391  
 392      /**
 393       * Deletes a single font face.
 394       *
 395       * @since 6.5.0
 396       *
 397       * @param WP_REST_Request $request Full details about the request.
 398       * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
 399       */
 400  	public function delete_item( $request ) {
 401          $post = $this->get_post( $request['id'] );
 402          if ( is_wp_error( $post ) ) {
 403              return $post;
 404          }
 405  
 406          $font_family = $this->get_parent_font_family_post( $request['font_family_id'] );
 407          if ( is_wp_error( $font_family ) ) {
 408              return $font_family;
 409          }
 410  
 411          if ( (int) $font_family->ID !== (int) $post->post_parent ) {
 412              return new WP_Error(
 413                  'rest_font_face_parent_id_mismatch',
 414                  /* translators: %d: A post id. */
 415                  sprintf( __( 'The font face does not belong to the specified font family with id of "%d".' ), $font_family->ID ),
 416                  array( 'status' => 404 )
 417              );
 418          }
 419  
 420          $force = isset( $request['force'] ) ? (bool) $request['force'] : false;
 421  
 422          // We don't support trashing for font faces.
 423          if ( ! $force ) {
 424              return new WP_Error(
 425                  'rest_trash_not_supported',
 426                  /* translators: %s: force=true */
 427                  sprintf( __( 'Font faces do not support trashing. Set "%s" to delete.' ), 'force=true' ),
 428                  array( 'status' => 501 )
 429              );
 430          }
 431  
 432          return parent::delete_item( $request );
 433      }
 434  
 435      /**
 436       * Prepares a single font face output for response.
 437       *
 438       * @since 6.5.0
 439       *
 440       * @param WP_Post         $item    Post object.
 441       * @param WP_REST_Request $request Request object.
 442       * @return WP_REST_Response Response object.
 443       */
 444  	public function prepare_item_for_response( $item, $request ) {
 445          $fields = $this->get_fields_for_response( $request );
 446          $data   = array();
 447  
 448          if ( rest_is_field_included( 'id', $fields ) ) {
 449              $data['id'] = $item->ID;
 450          }
 451          if ( rest_is_field_included( 'theme_json_version', $fields ) ) {
 452              $data['theme_json_version'] = static::LATEST_THEME_JSON_VERSION_SUPPORTED;
 453          }
 454  
 455          if ( rest_is_field_included( 'parent', $fields ) ) {
 456              $data['parent'] = $item->post_parent;
 457          }
 458  
 459          if ( rest_is_field_included( 'font_face_settings', $fields ) ) {
 460              $data['font_face_settings'] = $this->get_settings_from_post( $item );
 461          }
 462  
 463          $context = ! empty( $request['context'] ) ? $request['context'] : 'view';
 464          $data    = $this->add_additional_fields_to_object( $data, $request );
 465          $data    = $this->filter_response_by_context( $data, $context );
 466  
 467          $response = rest_ensure_response( $data );
 468  
 469          if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
 470              $links = $this->prepare_links( $item );
 471              $response->add_links( $links );
 472          }
 473  
 474          /**
 475           * Filters the font face data for a REST API response.
 476           *
 477           * @since 6.5.0
 478           *
 479           * @param WP_REST_Response $response The response object.
 480           * @param WP_Post          $post     Font face post object.
 481           * @param WP_REST_Request  $request  Request object.
 482           */
 483          return apply_filters( 'rest_prepare_wp_font_face', $response, $item, $request );
 484      }
 485  
 486      /**
 487       * Retrieves the post's schema, conforming to JSON Schema.
 488       *
 489       * @since 6.5.0
 490       *
 491       * @return array Item schema data.
 492       */
 493  	public function get_item_schema() {
 494          if ( $this->schema ) {
 495              return $this->add_additional_fields_schema( $this->schema );
 496          }
 497  
 498          $schema = array(
 499              '$schema'    => 'http://json-schema.org/draft-04/schema#',
 500              'title'      => $this->post_type,
 501              'type'       => 'object',
 502              // Base properties for every Post.
 503              'properties' => array(
 504                  'id'                 => array(
 505                      'description' => __( 'Unique identifier for the post.', 'default' ),
 506                      'type'        => 'integer',
 507                      'context'     => array( 'view', 'edit', 'embed' ),
 508                      'readonly'    => true,
 509                  ),
 510                  'theme_json_version' => array(
 511                      'description' => __( 'Version of the theme.json schema used for the typography settings.' ),
 512                      'type'        => 'integer',
 513                      'default'     => static::LATEST_THEME_JSON_VERSION_SUPPORTED,
 514                      'minimum'     => 2,
 515                      'maximum'     => static::LATEST_THEME_JSON_VERSION_SUPPORTED,
 516                      'context'     => array( 'view', 'edit', 'embed' ),
 517                  ),
 518                  'parent'             => array(
 519                      'description' => __( 'The ID for the parent font family of the font face.' ),
 520                      'type'        => 'integer',
 521                      'context'     => array( 'view', 'edit', 'embed' ),
 522                  ),
 523                  // Font face settings come directly from theme.json schema
 524                  // See https://schemas.wp.org/trunk/theme.json
 525                  'font_face_settings' => array(
 526                      'description'          => __( 'font-face declaration in theme.json format.' ),
 527                      'type'                 => 'object',
 528                      'context'              => array( 'view', 'edit', 'embed' ),
 529                      'properties'           => array(
 530                          'fontFamily'            => array(
 531                              'description' => __( 'CSS font-family value.' ),
 532                              'type'        => 'string',
 533                              'default'     => '',
 534                              'arg_options' => array(
 535                                  'sanitize_callback' => array( 'WP_Font_Utils', 'sanitize_font_family' ),
 536                              ),
 537                          ),
 538                          'fontStyle'             => array(
 539                              'description' => __( 'CSS font-style value.' ),
 540                              'type'        => 'string',
 541                              'default'     => 'normal',
 542                              'arg_options' => array(
 543                                  'sanitize_callback' => 'sanitize_text_field',
 544                              ),
 545                          ),
 546                          'fontWeight'            => array(
 547                              'description' => __( 'List of available font weights, separated by a space.' ),
 548                              'default'     => '400',
 549                              // Changed from `oneOf` to avoid errors from loose type checking.
 550                              // e.g. a fontWeight of "400" validates as both a string and an integer due to is_numeric check.
 551                              'type'        => array( 'string', 'integer' ),
 552                              'arg_options' => array(
 553                                  'sanitize_callback' => 'sanitize_text_field',
 554                              ),
 555                          ),
 556                          'fontDisplay'           => array(
 557                              'description' => __( 'CSS font-display value.' ),
 558                              'type'        => 'string',
 559                              'default'     => 'fallback',
 560                              'enum'        => array(
 561                                  'auto',
 562                                  'block',
 563                                  'fallback',
 564                                  'swap',
 565                                  'optional',
 566                              ),
 567                              'arg_options' => array(
 568                                  'sanitize_callback' => 'sanitize_text_field',
 569                              ),
 570                          ),
 571                          'src'                   => array(
 572                              'description' => __( 'Paths or URLs to the font files.' ),
 573                              // Changed from `oneOf` to `anyOf` due to rest_sanitize_array converting a string into an array,
 574                              // and causing a "matches more than one of the expected formats" error.
 575                              'anyOf'       => array(
 576                                  array(
 577                                      'type' => 'string',
 578                                  ),
 579                                  array(
 580                                      'type'  => 'array',
 581                                      'items' => array(
 582                                          'type' => 'string',
 583                                      ),
 584                                  ),
 585                              ),
 586                              'default'     => array(),
 587                              'arg_options' => array(
 588                                  'sanitize_callback' => function ( $value ) {
 589                                      return is_array( $value ) ? array_map( array( $this, 'sanitize_src' ), $value ) : $this->sanitize_src( $value );
 590                                  },
 591                              ),
 592                          ),
 593                          'fontStretch'           => array(
 594                              'description' => __( 'CSS font-stretch value.' ),
 595                              'type'        => 'string',
 596                              'arg_options' => array(
 597                                  'sanitize_callback' => 'sanitize_text_field',
 598                              ),
 599                          ),
 600                          'ascentOverride'        => array(
 601                              'description' => __( 'CSS ascent-override value.' ),
 602                              'type'        => 'string',
 603                              'arg_options' => array(
 604                                  'sanitize_callback' => 'sanitize_text_field',
 605                              ),
 606                          ),
 607                          'descentOverride'       => array(
 608                              'description' => __( 'CSS descent-override value.' ),
 609                              'type'        => 'string',
 610                              'arg_options' => array(
 611                                  'sanitize_callback' => 'sanitize_text_field',
 612                              ),
 613                          ),
 614                          'fontVariant'           => array(
 615                              'description' => __( 'CSS font-variant value.' ),
 616                              'type'        => 'string',
 617                              'arg_options' => array(
 618                                  'sanitize_callback' => 'sanitize_text_field',
 619                              ),
 620                          ),
 621                          'fontFeatureSettings'   => array(
 622                              'description' => __( 'CSS font-feature-settings value.' ),
 623                              'type'        => 'string',
 624                              'arg_options' => array(
 625                                  'sanitize_callback' => 'sanitize_text_field',
 626                              ),
 627                          ),
 628                          'fontVariationSettings' => array(
 629                              'description' => __( 'CSS font-variation-settings value.' ),
 630                              'type'        => 'string',
 631                              'arg_options' => array(
 632                                  'sanitize_callback' => 'sanitize_text_field',
 633                              ),
 634                          ),
 635                          'lineGapOverride'       => array(
 636                              'description' => __( 'CSS line-gap-override value.' ),
 637                              'type'        => 'string',
 638                              'arg_options' => array(
 639                                  'sanitize_callback' => 'sanitize_text_field',
 640                              ),
 641                          ),
 642                          'sizeAdjust'            => array(
 643                              'description' => __( 'CSS size-adjust value.' ),
 644                              'type'        => 'string',
 645                              'arg_options' => array(
 646                                  'sanitize_callback' => 'sanitize_text_field',
 647                              ),
 648                          ),
 649                          'unicodeRange'          => array(
 650                              'description' => __( 'CSS unicode-range value.' ),
 651                              'type'        => 'string',
 652                              'arg_options' => array(
 653                                  'sanitize_callback' => 'sanitize_text_field',
 654                              ),
 655                          ),
 656                          'preview'               => array(
 657                              'description' => __( 'URL to a preview image of the font face.' ),
 658                              'type'        => 'string',
 659                              'format'      => 'uri',
 660                              'default'     => '',
 661                              'arg_options' => array(
 662                                  'sanitize_callback' => 'sanitize_url',
 663                              ),
 664                          ),
 665                      ),
 666                      'required'             => array( 'fontFamily', 'src' ),
 667                      'additionalProperties' => false,
 668                  ),
 669              ),
 670          );
 671  
 672          $this->schema = $schema;
 673  
 674          return $this->add_additional_fields_schema( $this->schema );
 675      }
 676  
 677      /**
 678       * Retrieves the item's schema for display / public consumption purposes.
 679       *
 680       * @since 6.5.0
 681       *
 682       * @return array Public item schema data.
 683       */
 684  	public function get_public_item_schema() {
 685  
 686          $schema = parent::get_public_item_schema();
 687  
 688          // Also remove `arg_options' from child font_family_settings properties, since the parent
 689          // controller only handles the top level properties.
 690          foreach ( $schema['properties']['font_face_settings']['properties'] as &$property ) {
 691              unset( $property['arg_options'] );
 692          }
 693  
 694          return $schema;
 695      }
 696  
 697      /**
 698       * Retrieves the query params for the font face collection.
 699       *
 700       * @since 6.5.0
 701       *
 702       * @return array Collection parameters.
 703       */
 704  	public function get_collection_params() {
 705          $query_params = parent::get_collection_params();
 706  
 707          // Remove unneeded params.
 708          unset(
 709              $query_params['after'],
 710              $query_params['modified_after'],
 711              $query_params['before'],
 712              $query_params['modified_before'],
 713              $query_params['search'],
 714              $query_params['search_columns'],
 715              $query_params['slug'],
 716              $query_params['status']
 717          );
 718  
 719          $query_params['orderby']['default'] = 'id';
 720          $query_params['orderby']['enum']    = array( 'id', 'include' );
 721  
 722          /**
 723           * Filters collection parameters for the font face controller.
 724           *
 725           * @since 6.5.0
 726           *
 727           * @param array $query_params JSON Schema-formatted collection parameters.
 728           */
 729          return apply_filters( 'rest_wp_font_face_collection_params', $query_params );
 730      }
 731  
 732      /**
 733       * Get the params used when creating a new font face.
 734       *
 735       * @since 6.5.0
 736       *
 737       * @return array Font face create arguments.
 738       */
 739  	public function get_create_params() {
 740          $properties = $this->get_item_schema()['properties'];
 741          return array(
 742              'theme_json_version' => $properties['theme_json_version'],
 743              // When creating, font_face_settings is stringified JSON, to work with multipart/form-data used
 744              // when uploading font files.
 745              'font_face_settings' => array(
 746                  'description'       => __( 'font-face declaration in theme.json format, encoded as a string.' ),
 747                  'type'              => 'string',
 748                  'required'          => true,
 749                  'validate_callback' => array( $this, 'validate_create_font_face_settings' ),
 750                  'sanitize_callback' => array( $this, 'sanitize_font_face_settings' ),
 751              ),
 752          );
 753      }
 754  
 755      /**
 756       * Get the parent font family, if the ID is valid.
 757       *
 758       * @since 6.5.0
 759       *
 760       * @param int $font_family_id Supplied ID.
 761       * @return WP_Post|WP_Error Post object if ID is valid, WP_Error otherwise.
 762       */
 763  	protected function get_parent_font_family_post( $font_family_id ) {
 764          $error = new WP_Error(
 765              'rest_post_invalid_parent',
 766              __( 'Invalid post parent ID.', 'default' ),
 767              array( 'status' => 404 )
 768          );
 769  
 770          if ( (int) $font_family_id <= 0 ) {
 771              return $error;
 772          }
 773  
 774          $font_family_post = get_post( (int) $font_family_id );
 775  
 776          if ( empty( $font_family_post ) || empty( $font_family_post->ID )
 777          || 'wp_font_family' !== $font_family_post->post_type
 778          ) {
 779              return $error;
 780          }
 781  
 782          return $font_family_post;
 783      }
 784  
 785      /**
 786       * Prepares links for the request.
 787       *
 788       * @since 6.5.0
 789       *
 790       * @param WP_Post $post Post object.
 791       * @return array Links for the given post.
 792       */
 793  	protected function prepare_links( $post ) {
 794          // Entity meta.
 795          return array(
 796              'self'       => array(
 797                  'href' => rest_url( $this->namespace . '/font-families/' . $post->post_parent . '/font-faces/' . $post->ID ),
 798              ),
 799              'collection' => array(
 800                  'href' => rest_url( $this->namespace . '/font-families/' . $post->post_parent . '/font-faces' ),
 801              ),
 802              'parent'     => array(
 803                  'href' => rest_url( $this->namespace . '/font-families/' . $post->post_parent ),
 804              ),
 805          );
 806      }
 807  
 808      /**
 809       * Prepares a single font face post for creation.
 810       *
 811       * @since 6.5.0
 812       *
 813       * @param WP_REST_Request $request Request object.
 814       * @return stdClass Post object.
 815       */
 816  	protected function prepare_item_for_database( $request ) {
 817          $prepared_post = new stdClass();
 818  
 819          // Settings have already been decoded by ::sanitize_font_face_settings().
 820          $settings = $request->get_param( 'font_face_settings' );
 821  
 822          // Store this "slug" as the post_title rather than post_name, since it uses the fontFamily setting,
 823          // which may contain multibyte characters.
 824          $title = WP_Font_Utils::get_font_face_slug( $settings );
 825  
 826          $prepared_post->post_type    = $this->post_type;
 827          $prepared_post->post_parent  = $request['font_family_id'];
 828          $prepared_post->post_status  = 'publish';
 829          $prepared_post->post_title   = $title;
 830          $prepared_post->post_name    = sanitize_title( $title );
 831          $prepared_post->post_content = wp_json_encode( $settings );
 832  
 833          return $prepared_post;
 834      }
 835  
 836      /**
 837       * Sanitizes a single src value for a font face.
 838       *
 839       * @since 6.5.0
 840       *
 841       * @param string $value Font face src that is a URL or the key for a $_FILES array item.
 842       * @return string Sanitized value.
 843       */
 844  	protected function sanitize_src( $value ) {
 845          $value = ltrim( $value );
 846          return false === wp_http_validate_url( $value ) ? (string) $value : sanitize_url( $value );
 847      }
 848  
 849      /**
 850       * Handles the upload of a font file using wp_handle_upload().
 851       *
 852       * @since 6.5.0
 853       *
 854       * @param array $file Single file item from $_FILES.
 855       * @return array|WP_Error Array containing uploaded file attributes on success, or WP_Error object on failure.
 856       */
 857  	protected function handle_font_file_upload( $file ) {
 858          add_filter( 'upload_mimes', array( 'WP_Font_Utils', 'get_allowed_font_mime_types' ) );
 859          // Filter the upload directory to return the fonts directory.
 860          add_filter( 'upload_dir', '_wp_filter_font_directory' );
 861  
 862          $overrides = array(
 863              'upload_error_handler' => array( $this, 'handle_font_file_upload_error' ),
 864              // Not testing a form submission.
 865              'test_form'            => false,
 866              // Only allow uploading font files for this request.
 867              'mimes'                => WP_Font_Utils::get_allowed_font_mime_types(),
 868          );
 869  
 870          // Bypasses is_uploaded_file() when running unit tests.
 871          if ( defined( 'DIR_TESTDATA' ) && DIR_TESTDATA ) {
 872              $overrides['action'] = 'wp_handle_mock_upload';
 873          }
 874  
 875          $uploaded_file = wp_handle_upload( $file, $overrides );
 876  
 877          remove_filter( 'upload_dir', '_wp_filter_font_directory' );
 878          remove_filter( 'upload_mimes', array( 'WP_Font_Utils', 'get_allowed_font_mime_types' ) );
 879  
 880          return $uploaded_file;
 881      }
 882  
 883      /**
 884       * Handles file upload error.
 885       *
 886       * @since 6.5.0
 887       *
 888       * @param array  $file    File upload data.
 889       * @param string $message Error message from wp_handle_upload().
 890       * @return WP_Error WP_Error object.
 891       */
 892  	public function handle_font_file_upload_error( $file, $message ) {
 893          $status = 500;
 894          $code   = 'rest_font_upload_unknown_error';
 895  
 896          if ( __( 'Sorry, you are not allowed to upload this file type.' ) === $message ) {
 897              $status = 400;
 898              $code   = 'rest_font_upload_invalid_file_type';
 899          }
 900  
 901          return new WP_Error( $code, $message, array( 'status' => $status ) );
 902      }
 903  
 904      /**
 905       * Returns relative path to an uploaded font file.
 906       *
 907       * The path is relative to the current fonts directory.
 908       *
 909       * @since 6.5.0
 910       * @access private
 911       *
 912       * @param string $path Full path to the file.
 913       * @return string Relative path on success, unchanged path on failure.
 914       */
 915  	protected function relative_fonts_path( $path ) {
 916          $new_path = $path;
 917  
 918          $fonts_dir = wp_get_font_dir();
 919          if ( str_starts_with( $new_path, $fonts_dir['basedir'] ) ) {
 920              $new_path = str_replace( $fonts_dir['basedir'], '', $new_path );
 921              $new_path = ltrim( $new_path, '/' );
 922          }
 923  
 924          return $new_path;
 925      }
 926  
 927      /**
 928       * Gets the font face's settings from the post.
 929       *
 930       * @since 6.5.0
 931       *
 932       * @param WP_Post $post Font face post object.
 933       * @return array Font face settings array.
 934       */
 935  	protected function get_settings_from_post( $post ) {
 936          $settings   = json_decode( $post->post_content, true );
 937          $properties = $this->get_item_schema()['properties']['font_face_settings']['properties'];
 938  
 939          // Provide required, empty settings if needed.
 940          if ( null === $settings ) {
 941              $settings = array(
 942                  'fontFamily' => '',
 943                  'src'        => array(),
 944              );
 945          }
 946  
 947          // Only return the properties defined in the schema.
 948          return array_intersect_key( $settings, $properties );
 949      }
 950  }


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