Source
File: wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php
public function get_items_permissions_check( $request ) {
// Check if roles is specified in GET request and if user can list users.
if ( ! empty( $request['roles'] ) && ! current_user_can( 'list_users' ) ) {
return new WP_Error(
'rest_user_cannot_view',
__( 'Sorry, you are not allowed to filter users by role.' ),
array( 'status' => rest_authorization_required_code() )
);
}
if ( 'edit' === $request['context'] && ! current_user_can( 'list_users' ) ) {
return new WP_Error(
'rest_forbidden_context',
__( 'Sorry, you are not allowed to list users.' ),
array( 'status' => rest_authorization_required_code() )
);
}
if ( in_array( $request['orderby'], array( 'email', 'registered_date' ), true ) && ! current_user_can( 'list_users' ) ) {
return new WP_Error(
'rest_forbidden_orderby',
__( 'Sorry, you are not allowed to order users by this parameter.' ),
array( 'status' => rest_authorization_required_code() )
);
}
if ( 'authors' === $request['who'] ) {
$types = get_post_types( array( 'show_in_rest' => true ), 'objects' );
foreach ( $types as $type ) {
if ( post_type_supports( $type->name, 'author' )
&& current_user_can( $type->cap->edit_posts ) ) {
return true;
}
}
return new WP_Error(
'rest_forbidden_who',
__( 'Sorry, you are not allowed to query users by this parameter.' ),
array( 'status' => rest_authorization_required_code() )
);
}
return true;
}