WP_REST_Font_Faces_Controller::validate_create_font_face_settings( string $value, WP_REST_Request $request ): true|WP_Error

Source

public function validate_create_font_face_settings( $value, $request ) {
	$settings = json_decode( $value, true );

	// Check settings string is valid JSON.
	if ( null === $settings ) {
		return new WP_Error(
			'rest_invalid_param',
			__( 'font_face_settings parameter must be a valid JSON string.' ),
			array( 'status' => 400 )
		);
	}

	// Check that the font face settings match the theme.json schema.
	$schema             = $this->get_item_schema()['properties']['font_face_settings'];
	$has_valid_settings = rest_validate_value_from_schema( $settings, $schema, 'font_face_settings' );

	if ( is_wp_error( $has_valid_settings ) ) {
		$has_valid_settings->add_data( array( 'status' => 400 ) );
		return $has_valid_settings;
	}

	// Check that none of the required settings are empty values.
	$required = $schema['required'];
	foreach ( $required as $key ) {
		if ( isset( $settings[ $key ] ) && ! $settings[ $key ] ) {
			return new WP_Error(
				'rest_invalid_param',
				/* translators: %s: Name of the missing font face settings parameter, e.g. "font_face_settings[src]". */
				sprintf( __( '%s cannot be empty.' ), "font_face_setting[ $key ]" ),
				array( 'status' => 400 )
			);
		}
	}

	$srcs  = is_array( $settings['src'] ) ? $settings['src'] : array( $settings['src'] );
	$files = $request->get_file_params();

	foreach ( $srcs as $src ) {
		// Check that each src is a non-empty string.
		$src = ltrim( $src );
		if ( empty( $src ) ) {
			return new WP_Error(
				'rest_invalid_param',
				/* translators: %s: Font face source parameter name: "font_face_settings[src]". */
				sprintf( __( '%s values must be non-empty strings.' ), 'font_face_settings[src]' ),
				array( 'status' => 400 )
			);
		}

		// Check that srcs are valid URLs or file references.
		if ( false === wp_http_validate_url( $src ) && ! isset( $files[ $src ] ) ) {
			return new WP_Error(
				'rest_invalid_param',
				/* translators: 1: Font face source parameter name: "font_face_settings[src]", 2: The invalid src value. */
				sprintf( __( '%1$s value "%2$s" must be a valid URL or file reference.' ), 'font_face_settings[src]', $src ),
				array( 'status' => 400 )
			);
		}
	}

	// Check that each file in the request references a src in the settings.
	foreach ( array_keys( $files ) as $file ) {
		if ( ! in_array( $file, $srcs, true ) ) {
			return new WP_Error(
				'rest_invalid_param',
				/* translators: 1: File key (e.g. "file-0") in the request data, 2: Font face source parameter name: "font_face_settings[src]". */
				sprintf( __( 'File %1$s must be used in %2$s.' ), $file, 'font_face_settings[src]' ),
				array( 'status' => 400 )
			);
		}
	}

	return true;
}

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