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REST API: Support more JSON Schemas when filtering a response by context. 

The array type, multi-types, and the additional properties keyword are now supported. Additionally, the filter recurses to an infinite depth.

Fixes #48819.


git-svn-id: https://develop.svn.wordpress.org/trunk@47758 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Timothy Jacobs 2020-05-04 02:44:44 +00:00
parent 9a903f7e73
commit 8153d15f09
3 changed files with 382 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
src/wp-includes/rest-api.php
View File

@ -1658,3 +1658,63 @@ function rest_parse_embed_param( $embed ) {
return $rels;
}
/**
* Filters the response to remove any fields not available in the given context.
*
* @since 5.5.0
*
* @param array|object $data The response data to modify.
* @param array $schema The schema for the endpoint used to filter the response.
* @param string $context The requested context.
* @return array|object The filtered response data.
*/
function rest_filter_response_by_context( $data, $schema, $context ) {
if ( ! is_array( $data ) && ! is_object( $data ) ) {
return $data;
}
if ( isset( $schema['type'] ) ) {
$type = $schema['type'];
} elseif ( isset( $schema['properties'] ) ) {
$type = 'object'; // Back compat if a developer accidentally omitted the type.
} else {
return $data;
}
foreach ( $data as $key => $value ) {
$check = array();
if ( 'array' === $type || ( is_array( $type ) && in_array( 'array', $type, true ) ) ) {
$check = isset( $schema['items'] ) ? $schema['items'] : array();
} elseif ( 'object' === $type || ( is_array( $type ) && in_array( 'object', $type, true ) ) ) {
if ( isset( $schema['properties'][ $key ] ) ) {
$check = $schema['properties'][ $key ];
} elseif ( isset( $schema['additionalProperties'] ) && is_array( $schema['additionalProperties'] ) ) {
$check = $schema['additionalProperties'];
}
}
if ( ! isset( $check['context'] ) ) {
continue;
}
if ( ! in_array( $context, $check['context'], true ) ) {
if ( is_object( $data ) ) {
unset( $data->$key );
} else {
unset( $data[ $key ] );
}
} elseif ( is_array( $value ) || is_object( $value ) ) {
$new_value = rest_filter_response_by_context( $value, $check, $context );
if ( is_object( $data ) ) {
$data->$key = $new_value;
} else {
$data[ $key ] = $new_value;
}
}
}
return $data;
}

29
src/wp-includes/rest-api/endpoints/class-wp-rest-controller.php
View File

@ -288,7 +288,7 @@ abstract class WP_REST_Controller {
*
* @since 4.7.0
*
* @param array $data Response data to fiter.
* @param array $data Response data to filter.
* @param string $context Context defined in the schema.
* @return array Filtered response.
*/
@ -296,32 +296,7 @@ abstract class WP_REST_Controller {
$schema = $this->get_item_schema();
foreach ( $data as $key => $value ) {
if ( empty( $schema['properties'][ $key ] ) || empty( $schema['properties'][ $key ]['context'] ) ) {
continue;
}
if ( ! in_array( $context, $schema['properties'][ $key ]['context'], true ) ) {
unset( $data[ $key ] );
continue;
}
if ( 'object' === $schema['properties'][ $key ]['type'] && ! empty( $schema['properties'][ $key ]['properties'] ) ) {
foreach ( $schema['properties'][ $key ]['properties'] as $attribute => $details ) {
if ( empty( $details['context'] ) ) {
continue;
}
if ( ! in_array( $context, $details['context'], true ) ) {
if ( isset( $data[ $key ][ $attribute ] ) ) {
unset( $data[ $key ][ $attribute ] );
}
}
}
}
}
return $data;
return rest_filter_response_by_context( $data, $schema, $context );
}
/**

320
tests/phpunit/tests/rest-api.php
View File

@ -975,4 +975,324 @@ class Tests_REST_API extends WP_UnitTestCase {
array( array( 'https://api.w.org/term', 'https://api.w.org/attachment' ), array( 'https://api.w.org/term', 'https://api.w.org/attachment' ) ),
);
}
/**
* @ticket 48819
*
* @dataProvider _dp_rest_filter_response_by_context
*/
public function test_rest_filter_response_by_context( $schema, $data, $expected ) {
$this->assertEquals( $expected, rest_filter_response_by_context( $data, $schema, 'view' ) );
}
public function _dp_rest_filter_response_by_context() {
return array(
'default' => array(
array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'type' => 'object',
'properties' => array(
'first' => array(
'type' => 'string',
'context' => array( 'view', 'edit' ),
),
'second' => array(
'type' => 'string',
'context' => array( 'edit' ),
),
),
),
array(
'first' => 'a',
'second' => 'b',
),
array( 'first' => 'a' ),
),
'keeps missing context' => array(
array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'type' => 'object',
'properties' => array(
'first' => array(
'type' => 'string',
'context' => array( 'view', 'edit' ),
),
'second' => array(
'type' => 'string',
),
),
),
array(
'first' => 'a',
'second' => 'b',
),
array(
'first' => 'a',
'second' => 'b',
),
),
'removes empty context' => array(
array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'type' => 'object',
'properties' => array(
'first' => array(
'type' => 'string',
'context' => array( 'view', 'edit' ),
),
'second' => array(
'type' => 'string',
'context' => array(),
),
),
),
array(
'first' => 'a',
'second' => 'b',
),
array( 'first' => 'a' ),
),
'nested properties' => array(
array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'type' => 'object',
'properties' => array(
'parent' => array(
'type' => 'object',
'context' => array( 'view', 'edit' ),
'properties' => array(
'child' => array(
'type' => 'string',
'context' => array( 'view', 'edit' ),
),
'hidden' => array(
'type' => 'string',
'context' => array( 'edit' ),
),
),
),
),
),
array(
'parent' => array(
'child' => 'hi',
'hidden' => 'there',
),
),
array( 'parent' => array( 'child' => 'hi' ) ),
),
'grand child properties' => array(
array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'type' => 'object',
'properties' => array(
'parent' => array(
'type' => 'object',
'context' => array( 'view', 'edit' ),
'properties' => array(
'child' => array(
'type' => 'object',
'context' => array( 'view', 'edit' ),
'properties' => array(
'grand' => array(
'type' => 'string',
'context' => array( 'view', 'edit' ),
),
'hidden' => array(
'type' => 'string',
'context' => array( 'edit' ),
),
),
),
),
),
),
),
array(
'parent' => array(
'child' => array(
'grand' => 'hi',
),
),
),
array( 'parent' => array( 'child' => array( 'grand' => 'hi' ) ) ),
),
'array' => array(
array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'type' => 'object',
'properties' => array(
'arr' => array(
'type' => 'array',
'context' => array( 'view', 'edit' ),
'items' => array(
'type' => 'object',
'context' => array( 'view', 'edit' ),
'properties' => array(
'visible' => array(
'type' => 'string',
'context' => array( 'view', 'edit' ),
),
'hidden' => array(
'type' => 'string',
'context' => array( 'edit' ),
),
),
),
),
),
),
array(
'arr' => array(
array(
'visible' => 'hi',
'hidden' => 'there',
),
),
),
array( 'arr' => array( array( 'visible' => 'hi' ) ) ),
),
'additional properties' => array(
array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'type' => 'object',
'properties' => array(
'additional' => array(
'type' => 'object',
'context' => array( 'view', 'edit' ),
'properties' => array(
'a' => array(
'type' => 'string',
'context' => array( 'view', 'edit' ),
),
'b' => array(
'type' => 'string',
'context' => array( 'edit' ),
),
),
'additionalProperties' => array(
'type' => 'string',
'context' => array( 'edit' ),
),
),
),
),
array(
'additional' => array(
'a' => '1',
'b' => '2',
'c' => '3',
),
),
array( 'additional' => array( 'a' => '1' ) ),
),
'multiple types object' => array(
array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'type' => 'object',
'properties' => array(
'multi' => array(
'type' => array( 'object', 'string' ),
'context' => array( 'view', 'edit' ),
'properties' => array(
'a' => array(
'type' => 'string',
'context' => array( 'view', 'edit' ),
),
'b' => array(
'type' => 'string',
'context' => array( 'edit' ),
),
),
),
),
),
array(
'multi' => array(
'a' => '1',
'b' => '2',
),
),
array( 'multi' => array( 'a' => '1' ) ),
),
'multiple types array' => array(
array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'type' => 'object',
'properties' => array(
'multi' => array(
'type' => array( 'array', 'string' ),
'context' => array( 'view', 'edit' ),
'items' => array(
'type' => 'object',
'context' => array( 'view', 'edit' ),
'properties' => array(
'visible' => array(
'type' => 'string',
'context' => array( 'view', 'edit' ),
),
'hidden' => array(
'type' => 'string',
'context' => array( 'edit' ),
),
),
),
),
),
),
array(
'multi' => array(
array(
'visible' => '1',
'hidden' => '2',
),
),
),
array( 'multi' => array( array( 'visible' => '1' ) ) ),
),
'grand child properties does not traverses missing context' => array(
array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'type' => 'object',
'properties' => array(
'parent' => array(
'type' => 'object',
'context' => array( 'view', 'edit' ),
'properties' => array(
'child' => array(
'type' => 'object',
'properties' => array(
'grand' => array(
'type' => 'string',
'context' => array( 'view', 'edit' ),
),
'hidden' => array(
'type' => 'string',
'context' => array( 'edit' ),
),
),
),
),
),
),
),
array(
'parent' => array(
'child' => array(
'grand' => 'hi',
'hidden' => 'there',
),
),
),
array(
'parent' => array(
'child' => array(
'grand' => 'hi',
'hidden' => 'there',
),
),
),
),
);
}
}