KOKINIO - MANAGER
Edit File: class-wp-rest-settings-controller.php
<?php /** * REST API: WP_REST_Settings_Controller class * * @package WordPress * @subpackage REST_API * @since 4.7.0 */ /** * Core class used to manage a site's settings via the REST API. * * @since 4.7.0 * * @see WP_REST_Controller */ class WP_REST_Settings_Controller extends WP_REST_Controller { /** * Constructor. * * @since 4.7.0 */ public function __construct() { $this->namespace = 'wp/v2'; $this->rest_base = 'settings'; } /** * Registers the routes for the site's settings. * * @since 4.7.0 * * @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_item' ), 'args' => array(), 'permission_callback' => array( $this, 'get_item_permissions_check' ), ), array( 'methods' => WP_REST_Server::EDITABLE, 'callback' => array( $this, 'update_item' ), 'args' => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ), 'permission_callback' => array( $this, 'get_item_permissions_check' ), ), 'schema' => array( $this, 'get_public_item_schema' ), ) ); } /** * Checks if a given request has access to read and manage settings. * * @since 4.7.0 * * @param WP_REST_Request $request Full details about the request. * @return bool True if the request has read access for the item, otherwise false. */ public function get_item_permissions_check( $request ) { return current_user_can( 'manage_options' ); } /** * Retrieves the settings. * * @since 4.7.0 * * @param WP_REST_Request $request Full details about the request. * @return array|WP_Error Array on success, or WP_Error object on failure. */ public function get_item( $request ) { $options = $this->get_registered_options(); $response = array(); foreach ( $options as $name => $args ) { /** * Filters the value of a setting recognized by the REST API. * * Allow hijacking the setting value and overriding the built-in behavior by returning a * non-null value. The returned value will be presented as the setting value instead. * * @since 4.7.0 * * @param mixed $result Value to use for the requested setting. Can be a scalar * matching the registered schema for the setting, or null to * follow the default get_option() behavior. * @param string $name Setting name (as shown in REST API responses). * @param array $args Arguments passed to register_setting() for this setting. */ $response[ $name ] = apply_filters( 'rest_pre_get_setting', null, $name, $args ); if ( is_null( $response[ $name ] ) ) { // Default to a null value as "null" in the response means "not set". $response[ $name ] = get_option( $args['option_name'], $args['schema']['default'] ); } /* * Because get_option() is lossy, we have to * cast values to the type they are registered with. */ $response[ $name ] = $this->prepare_value( $response[ $name ], $args['schema'] ); } return $response; } /** * Prepares a value for output based off a schema array. * * @since 4.7.0 * * @param mixed $value Value to prepare. * @param array $schema Schema to match. * @return mixed The prepared value. */ protected function prepare_value( $value, $schema ) { /* * If the value is not valid by the schema, set the value to null. * Null values are specifically non-destructive, so this will not cause * overwriting the current invalid value to null. */ if ( is_wp_error( rest_validate_value_from_schema( $value, $schema ) ) ) { return null; } return rest_sanitize_value_from_schema( $value, $schema ); } /** * Updates settings for the settings object. * * @since 4.7.0 * * @param WP_REST_Request $request Full details about the request. * @return array|WP_Error Array on success, or error object on failure. */ public function update_item( $request ) { $options = $this->get_registered_options(); $params = $request->get_params(); foreach ( $options as $name => $args ) { if ( ! array_key_exists( $name, $params ) ) { continue; } /** * Filters whether to preempt a setting value update via the REST API. * * Allows hijacking the setting update logic and overriding the built-in behavior by * returning true. * * @since 4.7.0 * * @param bool $result Whether to override the default behavior for updating the * value of a setting. * @param string $name Setting name (as shown in REST API responses). * @param mixed $value Updated setting value. * @param array $args Arguments passed to register_setting() for this setting. */ $updated = apply_filters( 'rest_pre_update_setting', false, $name, $request[ $name ], $args ); if ( $updated ) { continue; } /* * A null value for an option would have the same effect as * deleting the option from the database, and relying on the * default value. */ if ( is_null( $request[ $name ] ) ) { /* * A null value is returned in the response for any option * that has a non-scalar value. * * To protect clients from accidentally including the null * values from a response object in a request, we do not allow * options with values that don't pass validation to be updated to null. * Without this added protection a client could mistakenly * delete all options that have invalid values from the * database. */ if ( is_wp_error( rest_validate_value_from_schema( get_option( $args['option_name'], false ), $args['schema'] ) ) ) { return new WP_Error( 'rest_invalid_stored_value', /* translators: %s: Property name. */ sprintf( __( 'The %s property has an invalid stored value, and cannot be updated to null.' ), $name ), array( 'status' => 500 ) ); } delete_option( $args['option_name'] ); } else { update_option( $args['option_name'], $request[ $name ] ); } } return $this->get_item( $request ); } /** * Retrieves all of the registered options for the Settings API. * * @since 4.7.0 * * @return array Array of registered options. */ protected function get_registered_options() { $rest_options = array(); foreach ( get_registered_settings() as $name => $args ) { if ( empty( $args['show_in_rest'] ) ) { continue; } $rest_args = array(); if ( is_array( $args['show_in_rest'] ) ) { $rest_args = $args['show_in_rest']; } $defaults = array( 'name' => ! empty( $rest_args['name'] ) ? $rest_args['name'] : $name, 'schema' => array(), ); $rest_args = array_merge( $defaults, $rest_args ); $default_schema = array( 'type' => empty( $args['type'] ) ? null : $args['type'], 'title' => empty( $args['label'] ) ? '' : $args['label'], 'description' => empty( $args['description'] ) ? '' : $args['description'], 'default' => isset( $args['default'] ) ? $args['default'] : null, ); $rest_args['schema'] = array_merge( $default_schema, $rest_args['schema'] ); $rest_args['option_name'] = $name; // Skip over settings that don't have a defined type in the schema. if ( empty( $rest_args['schema']['type'] ) ) { continue; } /* * Allow the supported types for settings, as we don't want invalid types * to be updated with arbitrary values that we can't do decent sanitizing for. */ if ( ! in_array( $rest_args['schema']['type'], array( 'number', 'integer', 'string', 'boolean', 'array', 'object' ), true ) ) { continue; } $rest_args['schema'] = rest_default_additional_properties_to_false( $rest_args['schema'] ); $rest_options[ $rest_args['name'] ] = $rest_args; } return $rest_options; } /** * Retrieves the site setting schema, conforming to JSON Schema. * * @since 4.7.0 * * @return array Item schema data. */ public function get_item_schema() { if ( $this->schema ) { return $this->add_additional_fields_schema( $this->schema ); } $options = $this->get_registered_options(); $schema = array( '$schema' => 'http://json-schema.org/draft-04/schema#', 'title' => 'settings', 'type' => 'object', 'properties' => array(), ); foreach ( $options as $option_name => $option ) { $schema['properties'][ $option_name ] = $option['schema']; $schema['properties'][ $option_name ]['arg_options'] = array( 'sanitize_callback' => array( $this, 'sanitize_callback' ), ); } $this->schema = $schema; return $this->add_additional_fields_schema( $this->schema ); } /** * Custom sanitize callback used for all options to allow the use of 'null'. * * By default, the schema of settings will throw an error if a value is set to * `null` as it's not a valid value for something like "type => string". We * provide a wrapper sanitizer to allow the use of `null`. * * @since 4.7.0 * * @param mixed $value The value for the setting. * @param WP_REST_Request $request The request object. * @param string $param The parameter name. * @return mixed|WP_Error */ public function sanitize_callback( $value, $request, $param ) { if ( is_null( $value ) ) { return $value; } return rest_parse_request_arg( $value, $request, $param ); } /** * Recursively add additionalProperties = false to all objects in a schema * if no additionalProperties setting is specified. * * This is needed to restrict properties of objects in settings values to only * registered items, as the REST API will allow additional properties by * default. * * @since 4.9.0 * @deprecated 6.1.0 Use {@see rest_default_additional_properties_to_false()} instead. * * @param array $schema The schema array. * @return array */ protected function set_additional_properties_to_false( $schema ) { _deprecated_function( __METHOD__, '6.1.0', 'rest_default_additional_properties_to_false()' ); return rest_default_additional_properties_to_false( $schema ); } }