From 9951662ebbd44a1f5f6716cd5fd1cabea71ceac8 Mon Sep 17 00:00:00 2001
From: TimothyBlynJacobs <TimothyBlynJacobs@git.wordpress.org>
Date: Sat, 26 Sep 2020 18:20:07 +0000
Subject: [PATCH] REST API: Support the minProperties and maxProperties JSON
 Schema keywords.

Props yakimun.
Fixes #51023.

Built from https://develop.svn.wordpress.org/trunk@49053


git-svn-id: http://core.svn.wordpress.org/trunk@48815 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/rest-api.php | 13 +++++++++++++
 wp-includes/version.php  |  2 +-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/wp-includes/rest-api.php b/wp-includes/rest-api.php
index cbad102bbe..28f2ad6b73 100644
--- a/wp-includes/rest-api.php
+++ b/wp-includes/rest-api.php
@@ -1551,6 +1551,7 @@ function rest_stabilize_value( $value ) {
  *              Support the "minLength", "maxLength" and "pattern" keywords for strings.
  *              Support the "minItems", "maxItems" and "uniqueItems" keywords for arrays.
  *              Validate required properties.
+ * @since 5.7.0 Support the "minProperties" and "maxProperties" keywords for objects.
  *
  * @param mixed  $value The value to validate.
  * @param array  $args  Schema array to use for validation.
@@ -1662,6 +1663,16 @@ function rest_validate_value_from_schema( $value, $args, $param = '' ) {
 				}
 			}
 		}
+
+		if ( isset( $args['minProperties'] ) && count( $value ) < $args['minProperties'] ) {
+			/* translators: 1: Parameter, 2: Number. */
+			return new WP_Error( 'rest_invalid_param', sprintf( __( '%1$s must contain at least %2$s properties.' ), $param, number_format_i18n( $args['minProperties'] ) ) );
+		}
+
+		if ( isset( $args['maxProperties'] ) && count( $value ) > $args['maxProperties'] ) {
+			/* translators: 1: Parameter, 2: Number. */
+			return new WP_Error( 'rest_invalid_param', sprintf( __( '%1$s must contain at most %2$s properties.' ), $param, number_format_i18n( $args['maxProperties'] ) ) );
+		}
 	}
 
 	if ( 'null' === $args['type'] ) {
@@ -2281,6 +2292,8 @@ function rest_get_endpoint_args_for_schema( $schema, $method = WP_REST_Server::C
 		'items',
 		'properties',
 		'additionalProperties',
+		'minProperties',
+		'maxProperties',
 		'minimum',
 		'maximum',
 		'exclusiveMinimum',
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 6951703004..d3a1033c3a 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.6-alpha-49052';
+$wp_version = '5.6-alpha-49053';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.