503 lines
15 KiB
PHP
Executable File
503 lines
15 KiB
PHP
Executable File
<?php
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/**
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* REST API: WP_REST_Sidebars_Controller class
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*
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* Original code from {@link https://github.com/martin-pettersson/wp-rest-api-sidebars Martin Pettersson (martin_pettersson@outlook.com)}.
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*
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* @package WordPress
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* @subpackage REST_API
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* @since 5.8.0
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*/
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/**
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* Core class used to manage a site's sidebars.
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*
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* @since 5.8.0
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*
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* @see WP_REST_Controller
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*/
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class WP_REST_Sidebars_Controller extends WP_REST_Controller {
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/**
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* Tracks whether {@see retrieve_widgets()} has been called in the current request.
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*
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* @since 5.9.0
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* @var bool
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*/
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protected $widgets_retrieved = false;
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/**
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* Sidebars controller constructor.
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*
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* @since 5.8.0
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*/
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public function __construct() {
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$this->namespace = 'wp/v2';
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$this->rest_base = 'sidebars';
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}
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/**
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* Registers the controllers routes.
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*
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* @since 5.8.0
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*/
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public function register_routes() {
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register_rest_route(
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$this->namespace,
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'/' . $this->rest_base,
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array(
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array(
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'methods' => WP_REST_Server::READABLE,
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'callback' => array( $this, 'get_items' ),
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'permission_callback' => array( $this, 'get_items_permissions_check' ),
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'args' => array(
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'context' => $this->get_context_param( array( 'default' => 'view' ) ),
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),
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),
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'schema' => array( $this, 'get_public_item_schema' ),
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)
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);
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register_rest_route(
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$this->namespace,
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'/' . $this->rest_base . '/(?P<id>[\w-]+)',
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array(
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array(
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'methods' => WP_REST_Server::READABLE,
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'callback' => array( $this, 'get_item' ),
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'permission_callback' => array( $this, 'get_item_permissions_check' ),
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'args' => array(
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'id' => array(
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'description' => __( 'The id of a registered sidebar' ),
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'type' => 'string',
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),
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'context' => $this->get_context_param( array( 'default' => 'view' ) ),
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),
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),
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array(
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'methods' => WP_REST_Server::EDITABLE,
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'callback' => array( $this, 'update_item' ),
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'permission_callback' => array( $this, 'update_item_permissions_check' ),
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'args' => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ),
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),
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'schema' => array( $this, 'get_public_item_schema' ),
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)
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);
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}
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/**
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* Checks if a given request has access to get sidebars.
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*
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* @since 5.8.0
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return true|WP_Error True if the request has read access, WP_Error object otherwise.
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*/
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public function get_items_permissions_check( $request ) {
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$this->retrieve_widgets();
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foreach ( wp_get_sidebars_widgets() as $id => $widgets ) {
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$sidebar = $this->get_sidebar( $id );
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if ( ! $sidebar ) {
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continue;
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}
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if ( $this->check_read_permission( $sidebar ) ) {
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return true;
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}
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}
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return $this->do_permissions_check();
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}
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/**
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* Retrieves the list of sidebars (active or inactive).
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*
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* @since 5.8.0
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return WP_REST_Response Response object on success.
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*/
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public function get_items( $request ) {
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$this->retrieve_widgets();
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$data = array();
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$permissions_check = $this->do_permissions_check();
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foreach ( wp_get_sidebars_widgets() as $id => $widgets ) {
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$sidebar = $this->get_sidebar( $id );
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if ( ! $sidebar ) {
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continue;
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}
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if ( is_wp_error( $permissions_check ) && ! $this->check_read_permission( $sidebar ) ) {
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continue;
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}
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$data[] = $this->prepare_response_for_collection(
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$this->prepare_item_for_response( $sidebar, $request )
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);
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}
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return rest_ensure_response( $data );
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}
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/**
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* Checks if a given request has access to get a single sidebar.
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*
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* @since 5.8.0
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return true|WP_Error True if the request has read access, WP_Error object otherwise.
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*/
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public function get_item_permissions_check( $request ) {
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$this->retrieve_widgets();
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$sidebar = $this->get_sidebar( $request['id'] );
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if ( $sidebar && $this->check_read_permission( $sidebar ) ) {
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return true;
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}
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return $this->do_permissions_check();
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}
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/**
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* Checks if a sidebar can be read publicly.
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*
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* @since 5.9.0
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*
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* @param array $sidebar The registered sidebar configuration.
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* @return bool Whether the side can be read.
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*/
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protected function check_read_permission( $sidebar ) {
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return ! empty( $sidebar['show_in_rest'] );
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}
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/**
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* Retrieves one sidebar from the collection.
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*
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* @since 5.8.0
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
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*/
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public function get_item( $request ) {
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$this->retrieve_widgets();
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$sidebar = $this->get_sidebar( $request['id'] );
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if ( ! $sidebar ) {
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return new WP_Error( 'rest_sidebar_not_found', __( 'No sidebar exists with that id.' ), array( 'status' => 404 ) );
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}
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return $this->prepare_item_for_response( $sidebar, $request );
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}
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/**
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* Checks if a given request has access to update sidebars.
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*
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* @since 5.8.0
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return true|WP_Error True if the request has read access, WP_Error object otherwise.
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*/
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public function update_item_permissions_check( $request ) {
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return $this->do_permissions_check();
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}
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/**
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* Updates a sidebar.
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*
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* @since 5.8.0
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return WP_REST_Response Response object on success, or WP_Error object on failure.
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*/
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public function update_item( $request ) {
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if ( isset( $request['widgets'] ) ) {
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$sidebars = wp_get_sidebars_widgets();
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foreach ( $sidebars as $sidebar_id => $widgets ) {
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foreach ( $widgets as $i => $widget_id ) {
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// This automatically removes the passed widget IDs from any other sidebars in use.
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if ( $sidebar_id !== $request['id'] && in_array( $widget_id, $request['widgets'], true ) ) {
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unset( $sidebars[ $sidebar_id ][ $i ] );
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}
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// This automatically removes omitted widget IDs to the inactive sidebar.
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if ( $sidebar_id === $request['id'] && ! in_array( $widget_id, $request['widgets'], true ) ) {
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$sidebars['wp_inactive_widgets'][] = $widget_id;
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}
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}
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}
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$sidebars[ $request['id'] ] = $request['widgets'];
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wp_set_sidebars_widgets( $sidebars );
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}
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$request['context'] = 'edit';
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$sidebar = $this->get_sidebar( $request['id'] );
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/**
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* Fires after a sidebar is updated via the REST API.
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*
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* @since 5.8.0
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*
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* @param array $sidebar The updated sidebar.
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* @param WP_REST_Request $request Request object.
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*/
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do_action( 'rest_save_sidebar', $sidebar, $request );
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return $this->prepare_item_for_response( $sidebar, $request );
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}
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/**
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* Checks if the user has permissions to make the request.
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*
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* @since 5.8.0
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*
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* @return true|WP_Error True if the request has read access, WP_Error object otherwise.
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*/
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protected function do_permissions_check() {
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// Verify if the current user has edit_theme_options capability.
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// This capability is required to access the widgets screen.
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if ( ! current_user_can( 'edit_theme_options' ) ) {
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return new WP_Error(
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'rest_cannot_manage_widgets',
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__( 'Sorry, you are not allowed to manage widgets on this site.' ),
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array( 'status' => rest_authorization_required_code() )
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);
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}
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return true;
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}
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/**
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* Retrieves the registered sidebar with the given id.
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*
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* @since 5.8.0
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*
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* @param string|int $id ID of the sidebar.
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* @return array|null The discovered sidebar, or null if it is not registered.
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*/
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protected function get_sidebar( $id ) {
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return wp_get_sidebar( $id );
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}
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/**
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* Looks for "lost" widgets once per request.
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*
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* @since 5.9.0
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*
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* @see retrieve_widgets()
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*/
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protected function retrieve_widgets() {
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if ( ! $this->widgets_retrieved ) {
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retrieve_widgets();
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$this->widgets_retrieved = true;
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}
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}
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/**
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* Prepares a single sidebar output for response.
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*
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* @since 5.8.0
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* @since 5.9.0 Renamed `$raw_sidebar` to `$item` to match parent class for PHP 8 named parameter support.
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*
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* @global array $wp_registered_sidebars The registered sidebars.
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* @global array $wp_registered_widgets The registered widgets.
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*
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* @param array $item Sidebar instance.
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* @param WP_REST_Request $request Full details about the request.
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* @return WP_REST_Response Prepared response object.
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*/
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public function prepare_item_for_response( $item, $request ) {
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global $wp_registered_sidebars, $wp_registered_widgets;
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// Restores the more descriptive, specific name for use within this method.
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$raw_sidebar = $item;
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$id = $raw_sidebar['id'];
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$sidebar = array( 'id' => $id );
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if ( isset( $wp_registered_sidebars[ $id ] ) ) {
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$registered_sidebar = $wp_registered_sidebars[ $id ];
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$sidebar['status'] = 'active';
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$sidebar['name'] = isset( $registered_sidebar['name'] ) ? $registered_sidebar['name'] : '';
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$sidebar['description'] = isset( $registered_sidebar['description'] ) ? wp_sidebar_description( $id ) : '';
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$sidebar['class'] = isset( $registered_sidebar['class'] ) ? $registered_sidebar['class'] : '';
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$sidebar['before_widget'] = isset( $registered_sidebar['before_widget'] ) ? $registered_sidebar['before_widget'] : '';
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$sidebar['after_widget'] = isset( $registered_sidebar['after_widget'] ) ? $registered_sidebar['after_widget'] : '';
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$sidebar['before_title'] = isset( $registered_sidebar['before_title'] ) ? $registered_sidebar['before_title'] : '';
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$sidebar['after_title'] = isset( $registered_sidebar['after_title'] ) ? $registered_sidebar['after_title'] : '';
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} else {
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$sidebar['status'] = 'inactive';
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$sidebar['name'] = $raw_sidebar['name'];
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$sidebar['description'] = '';
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$sidebar['class'] = '';
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}
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$fields = $this->get_fields_for_response( $request );
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if ( rest_is_field_included( 'widgets', $fields ) ) {
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$sidebars = wp_get_sidebars_widgets();
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$widgets = array_filter(
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isset( $sidebars[ $sidebar['id'] ] ) ? $sidebars[ $sidebar['id'] ] : array(),
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static function ( $widget_id ) use ( $wp_registered_widgets ) {
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return isset( $wp_registered_widgets[ $widget_id ] );
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}
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);
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$sidebar['widgets'] = array_values( $widgets );
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}
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$schema = $this->get_item_schema();
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$data = array();
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foreach ( $schema['properties'] as $property_id => $property ) {
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if ( isset( $sidebar[ $property_id ] ) && true === rest_validate_value_from_schema( $sidebar[ $property_id ], $property ) ) {
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$data[ $property_id ] = $sidebar[ $property_id ];
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} elseif ( isset( $property['default'] ) ) {
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$data[ $property_id ] = $property['default'];
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}
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}
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$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
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$data = $this->add_additional_fields_to_object( $data, $request );
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$data = $this->filter_response_by_context( $data, $context );
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$response = rest_ensure_response( $data );
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if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
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$response->add_links( $this->prepare_links( $sidebar ) );
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}
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/**
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* Filters the REST API response for a sidebar.
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*
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* @since 5.8.0
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*
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* @param WP_REST_Response $response The response object.
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* @param array $raw_sidebar The raw sidebar data.
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* @param WP_REST_Request $request The request object.
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*/
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return apply_filters( 'rest_prepare_sidebar', $response, $raw_sidebar, $request );
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}
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/**
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* Prepares links for the sidebar.
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*
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* @since 5.8.0
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*
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* @param array $sidebar Sidebar.
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* @return array Links for the given widget.
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*/
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protected function prepare_links( $sidebar ) {
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return array(
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'collection' => array(
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'href' => rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) ),
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),
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'self' => array(
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'href' => rest_url( sprintf( '%s/%s/%s', $this->namespace, $this->rest_base, $sidebar['id'] ) ),
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),
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'https://api.w.org/widget' => array(
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'href' => add_query_arg( 'sidebar', $sidebar['id'], rest_url( '/wp/v2/widgets' ) ),
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'embeddable' => true,
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),
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);
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}
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/**
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* Retrieves the block type' schema, conforming to JSON Schema.
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*
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* @since 5.8.0
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*
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* @return array Item schema data.
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*/
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public function get_item_schema() {
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if ( $this->schema ) {
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return $this->add_additional_fields_schema( $this->schema );
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}
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$schema = array(
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'$schema' => 'http://json-schema.org/draft-04/schema#',
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'title' => 'sidebar',
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'type' => 'object',
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'properties' => array(
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'id' => array(
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'description' => __( 'ID of sidebar.' ),
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'type' => 'string',
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'context' => array( 'embed', 'view', 'edit' ),
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'readonly' => true,
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),
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'name' => array(
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'description' => __( 'Unique name identifying the sidebar.' ),
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'type' => 'string',
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'context' => array( 'embed', 'view', 'edit' ),
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'readonly' => true,
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),
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'description' => array(
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'description' => __( 'Description of sidebar.' ),
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'type' => 'string',
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'context' => array( 'embed', 'view', 'edit' ),
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'readonly' => true,
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),
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'class' => array(
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'description' => __( 'Extra CSS class to assign to the sidebar in the Widgets interface.' ),
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'type' => 'string',
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'context' => array( 'embed', 'view', 'edit' ),
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'readonly' => true,
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),
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'before_widget' => array(
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'description' => __( 'HTML content to prepend to each widget\'s HTML output when assigned to this sidebar. Default is an opening list item element.' ),
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'type' => 'string',
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'default' => '',
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'context' => array( 'embed', 'view', 'edit' ),
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'readonly' => true,
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),
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'after_widget' => array(
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'description' => __( 'HTML content to append to each widget\'s HTML output when assigned to this sidebar. Default is a closing list item element.' ),
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'type' => 'string',
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'default' => '',
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'context' => array( 'embed', 'view', 'edit' ),
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'readonly' => true,
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),
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'before_title' => array(
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'description' => __( 'HTML content to prepend to the sidebar title when displayed. Default is an opening h2 element.' ),
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'type' => 'string',
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'default' => '',
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'context' => array( 'embed', 'view', 'edit' ),
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'readonly' => true,
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),
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'after_title' => array(
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'description' => __( 'HTML content to append to the sidebar title when displayed. Default is a closing h2 element.' ),
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'type' => 'string',
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'default' => '',
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'context' => array( 'embed', 'view', 'edit' ),
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'readonly' => true,
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),
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'status' => array(
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'description' => __( 'Status of sidebar.' ),
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'type' => 'string',
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'enum' => array( 'active', 'inactive' ),
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'context' => array( 'embed', 'view', 'edit' ),
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'readonly' => true,
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),
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'widgets' => array(
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'description' => __( 'Nested widgets.' ),
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'type' => 'array',
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'items' => array(
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'type' => array( 'object', 'string' ),
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),
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'default' => array(),
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'context' => array( 'embed', 'view', 'edit' ),
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),
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),
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);
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$this->schema = $schema;
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return $this->add_additional_fields_schema( $this->schema );
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}
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}
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