REST API: Support objects in settings schema.

Enables register_setting to accept an object as its schema value, allowing settings to accept non-scalar values through the REST API.
This whitelists the added type in the settings controller, and passes properties from argument registration into the validation functions.

Props joehoyle.
See #38583.



git-svn-id: https://develop.svn.wordpress.org/trunk@41758 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
K. Adam White 2017-10-05 00:18:44 +00:00
parent f7fcc393d7
commit 64a36e4119
3 changed files with 184 additions and 20 deletions

View File

@ -545,7 +545,7 @@ abstract class WP_REST_Controller {
$endpoint_args[ $field_id ]['required'] = true;
}
foreach ( array( 'type', 'format', 'enum', 'items' ) as $schema_prop ) {
foreach ( array( 'type', 'format', 'enum', 'items', 'properties' ) as $schema_prop ) {
if ( isset( $params[ $schema_prop ] ) ) {
$endpoint_args[ $field_id ][ $schema_prop ] = $params[ $schema_prop ];
}

View File

@ -119,23 +119,13 @@ class WP_REST_Settings_Controller extends WP_REST_Controller {
* @return mixed The prepared value.
*/
protected function prepare_value( $value, $schema ) {
// If the value is not a scalar, it's not possible to cast it to anything.
if ( ! is_scalar( $value ) ) {
// If the value is not valid by the schema, set the value to null. Null
// values are specifcally 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;
}
switch ( $schema['type'] ) {
case 'string':
return (string) $value;
case 'integer':
return (int) $value;
case 'number':
return (float) $value;
case 'boolean':
return (bool) $value;
default:
return null;
}
return rest_sanitize_value_from_schema( $value, $schema );
}
/**
@ -148,6 +138,7 @@ class WP_REST_Settings_Controller extends WP_REST_Controller {
*/
public function update_item( $request ) {
$options = $this->get_registered_options();
$params = $request->get_params();
foreach ( $options as $name => $args ) {
@ -187,12 +178,12 @@ class WP_REST_Settings_Controller extends WP_REST_Controller {
*
* To protect clients from accidentally including the null
* values from a response object in a request, we do not allow
* options with non-scalar values to be updated to null.
* 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 non-scalar values from the
* delete all options that have invalid values from the
* database.
*/
if ( ! is_scalar( get_option( $args['option_name'], false ) ) ) {
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', sprintf( __( 'The %s property has an invalid stored value, and cannot be updated to null.' ), $name ), array( 'status' => 500 )
);
@ -253,7 +244,7 @@ class WP_REST_Settings_Controller extends WP_REST_Controller {
* Whitelist 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' ), true ) ) {
if ( ! in_array( $rest_args['schema']['type'], array( 'number', 'integer', 'string', 'boolean', 'array', 'object' ), true ) ) {
continue;
}

View File

@ -127,6 +127,93 @@ class WP_Test_REST_Settings_Controller extends WP_Test_REST_Controller_Testcase
unregister_setting( 'somegroup', 'mycustomsetting' );
}
public function test_get_item_with_custom_array_setting() {
wp_set_current_user( self::$administrator );
register_setting( 'somegroup', 'mycustomsetting', array(
'show_in_rest' => array(
'schema' => array(
'type' => 'array',
'items' => array(
'type' => 'integer',
),
),
),
'type' => 'array',
) );
// Array is cast to correct types.
update_option( 'mycustomsetting', array( '1', '2' ) );
$request = new WP_REST_Request( 'GET', '/wp/v2/settings' );
$response = $this->server->dispatch( $request );
$data = $response->get_data();
$this->assertEquals( array( 1, 2 ), $data['mycustomsetting'] );
// Empty array works as expected.
update_option( 'mycustomsetting', array() );
$request = new WP_REST_Request( 'GET', '/wp/v2/settings' );
$response = $this->server->dispatch( $request );
$data = $response->get_data();
$this->assertEquals( array(), $data['mycustomsetting'] );
// Invalid value
update_option( 'mycustomsetting', array( array( 1 ) ) );
$request = new WP_REST_Request( 'GET', '/wp/v2/settings' );
$response = $this->server->dispatch( $request );
$data = $response->get_data();
$this->assertEquals( null, $data['mycustomsetting'] );
// No option value
delete_option( 'mycustomsetting' );
$request = new WP_REST_Request( 'GET', '/wp/v2/settings' );
$response = $this->server->dispatch( $request );
$data = $response->get_data();
$this->assertEquals( null, $data['mycustomsetting'] );
unregister_setting( 'somegroup', 'mycustomsetting' );
}
public function test_get_item_with_custom_object_setting() {
wp_set_current_user( self::$administrator );
register_setting( 'somegroup', 'mycustomsetting', array(
'show_in_rest' => array(
'schema' => array(
'type' => 'object',
'properties' => array(
'a' => array(
'type' => 'integer',
),
),
),
),
'type' => 'object',
) );
// Object is cast to correct types.
update_option( 'mycustomsetting', array( 'a' => '1' ) );
$request = new WP_REST_Request( 'GET', '/wp/v2/settings' );
$response = $this->server->dispatch( $request );
$data = $response->get_data();
$this->assertEquals( array( 'a' => 1 ), $data['mycustomsetting'] );
// Empty array works as expected.
update_option( 'mycustomsetting', array() );
$request = new WP_REST_Request( 'GET', '/wp/v2/settings' );
$response = $this->server->dispatch( $request );
$data = $response->get_data();
$this->assertEquals( array(), $data['mycustomsetting'] );
// Invalid value
update_option( 'mycustomsetting', array( 'a' => 1, 'b' => 2 ) );
$request = new WP_REST_Request( 'GET', '/wp/v2/settings' );
$response = $this->server->dispatch( $request );
$data = $response->get_data();
$this->assertEquals( array( 'a' => 1 ), $data['mycustomsetting'] );
unregister_setting( 'somegroup', 'mycustomsetting' );
}
public function get_setting_custom_callback( $result, $name, $args ) {
switch ( $name ) {
case 'mycustomsetting1':
@ -215,6 +302,7 @@ class WP_Test_REST_Settings_Controller extends WP_Test_REST_Controller_Testcase
$response = $this->server->dispatch( $request );
$data = $response->get_data();
$this->assertEquals( null, $data['mycustomsettinginrest'] );
unregister_setting( 'somegroup', 'mycustomsetting' );
}
@ -242,6 +330,91 @@ class WP_Test_REST_Settings_Controller extends WP_Test_REST_Controller_Testcase
return false;
}
public function test_update_item_with_array() {
register_setting( 'somegroup', 'mycustomsetting', array(
'show_in_rest' => array(
'schema' => array(
'type' => 'array',
'items' => array(
'type' => 'integer',
),
),
),
'type' => 'array',
) );
// We have to re-register the route, as the args changes based off registered settings.
$this->server->override_by_default = true;
$this->endpoint->register_routes();
wp_set_current_user( self::$administrator );
$request = new WP_REST_Request( 'PUT', '/wp/v2/settings' );
$request->set_param( 'mycustomsetting', array( '1', '2' ) );
$response = $this->server->dispatch( $request );
$data = $response->get_data();
$this->assertEquals( array( 1, 2 ), $data['mycustomsetting'] );
$this->assertEquals( array( 1, 2 ), get_option( 'mycustomsetting' ) );
// Setting an empty array.
$request = new WP_REST_Request( 'PUT', '/wp/v2/settings' );
$request->set_param( 'mycustomsetting', array() );
$response = $this->server->dispatch( $request );
$data = $response->get_data();
$this->assertEquals( array(), $data['mycustomsetting'] );
$this->assertEquals( array(), get_option( 'mycustomsetting' ) );
// Setting an invalid array.
$request = new WP_REST_Request( 'PUT', '/wp/v2/settings' );
$request->set_param( 'mycustomsetting', array( 'invalid' ) );
$response = $this->server->dispatch( $request );
$this->assertErrorResponse( 'rest_invalid_param', $response, 400 );
unregister_setting( 'somegroup', 'mycustomsetting' );
}
public function test_update_item_with_object() {
register_setting( 'somegroup', 'mycustomsetting', array(
'show_in_rest' => array(
'schema' => array(
'type' => 'object',
'properties' => array(
'a' => array(
'type' => 'integer',
),
),
),
),
'type' => 'object',
) );
// We have to re-register the route, as the args changes based off registered settings.
$this->server->override_by_default = true;
$this->endpoint->register_routes();
wp_set_current_user( self::$administrator );
$request = new WP_REST_Request( 'PUT', '/wp/v2/settings' );
$request->set_param( 'mycustomsetting', array( 'a' => 1 ) );
$response = $this->server->dispatch( $request );
$data = $response->get_data();
$this->assertEquals( array( 'a' => 1 ), $data['mycustomsetting'] );
$this->assertEquals( array( 'a' => 1 ), get_option( 'mycustomsetting' ) );
// Setting an empty object.
$request = new WP_REST_Request( 'PUT', '/wp/v2/settings' );
$request->set_param( 'mycustomsetting', array() );
$response = $this->server->dispatch( $request );
$data = $response->get_data();
$this->assertEquals( array(), $data['mycustomsetting'] );
$this->assertEquals( array(), get_option( 'mycustomsetting' ) );
// Setting an invalid object.
$request = new WP_REST_Request( 'PUT', '/wp/v2/settings' );
$request->set_param( 'mycustomsetting', array( 'a' => 'invalid' ) );
$response = $this->server->dispatch( $request );
$this->assertErrorResponse( 'rest_invalid_param', $response, 400 );
unregister_setting( 'somegroup', 'mycustomsetting' );
}
public function test_update_item_with_filter() {
wp_set_current_user( self::$administrator );