298 lines
		
	
	
		
			8.1 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			298 lines
		
	
	
		
			8.1 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
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| /**
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|  * REST API: WP_REST_Template_Revisions_Controller class
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|  *
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|  * @package WordPress
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|  * @subpackage REST_API
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|  * @since 6.4.0
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|  */
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| 
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| /**
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|  * Core class used to access template revisions via the REST API.
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|  *
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|  * @since 6.4.0
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|  *
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|  * @see WP_REST_Controller
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|  */
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| class WP_REST_Template_Revisions_Controller extends WP_REST_Revisions_Controller {
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| 	/**
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| 	 * Parent post type.
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| 	 *
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| 	 * @since 6.4.0
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| 	 * @var string
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| 	 */
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| 	private $parent_post_type;
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| 
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| 	/**
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| 	 * Parent controller.
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| 	 *
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| 	 * @since 6.4.0
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| 	 * @var WP_REST_Controller
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| 	 */
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| 	private $parent_controller;
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| 
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| 	/**
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| 	 * The base of the parent controller's route.
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| 	 *
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| 	 * @since 6.4.0
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| 	 * @var string
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| 	 */
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| 	private $parent_base;
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| 
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| 	/**
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| 	 * Constructor.
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| 	 *
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| 	 * @since 6.4.0
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| 	 *
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| 	 * @param string $parent_post_type Post type of the parent.
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| 	 */
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| 	public function __construct( $parent_post_type ) {
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| 		parent::__construct( $parent_post_type );
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| 		$this->parent_post_type = $parent_post_type;
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| 		$post_type_object       = get_post_type_object( $parent_post_type );
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| 		$parent_controller      = $post_type_object->get_rest_controller();
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| 
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| 		if ( ! $parent_controller ) {
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| 			$parent_controller = new WP_REST_Templates_Controller( $parent_post_type );
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| 		}
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| 
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| 		$this->parent_controller = $parent_controller;
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| 		$this->rest_base         = 'revisions';
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| 		$this->parent_base       = ! empty( $post_type_object->rest_base ) ? $post_type_object->rest_base : $post_type_object->name;
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| 		$this->namespace         = ! empty( $post_type_object->rest_namespace ) ? $post_type_object->rest_namespace : 'wp/v2';
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| 	}
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| 
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| 	/**
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| 	 * Registers the routes for revisions based on post types supporting revisions.
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| 	 *
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| 	 * @since 6.4.0
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| 	 *
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| 	 * @see register_rest_route()
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| 	 */
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| 	public function register_routes() {
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| 
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| 		register_rest_route(
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| 			$this->namespace,
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| 			sprintf(
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| 				'/%s/(?P<parent>%s%s)/%s',
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| 				$this->parent_base,
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| 				/*
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| 				 * Matches theme's directory: `/themes/<subdirectory>/<theme>/` or `/themes/<theme>/`.
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| 				 * Excludes invalid directory name characters: `/:<>*?"|`.
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| 				 */
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| 				'([^\/:<>\*\?"\|]+(?:\/[^\/:<>\*\?"\|]+)?)',
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| 				// Matches the template name.
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| 				'[\/\w%-]+',
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| 				$this->rest_base
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| 			),
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| 			array(
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| 				'args'   => array(
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| 					'parent' => array(
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| 						'description'       => __( 'The id of a template' ),
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| 						'type'              => 'string',
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| 						'sanitize_callback' => array( $this->parent_controller, '_sanitize_template_id' ),
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| 					),
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| 				),
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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'                => $this->get_collection_params(),
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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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| 		register_rest_route(
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| 			$this->namespace,
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| 			sprintf(
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| 				'/%s/(?P<parent>%s%s)/%s/%s',
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| 				$this->parent_base,
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| 				/*
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| 				 * Matches theme's directory: `/themes/<subdirectory>/<theme>/` or `/themes/<theme>/`.
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| 				 * Excludes invalid directory name characters: `/:<>*?"|`.
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| 				 */
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| 				'([^\/:<>\*\?"\|]+(?:\/[^\/:<>\*\?"\|]+)?)',
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| 				// Matches the template name.
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| 				'[\/\w%-]+',
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| 				$this->rest_base,
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| 				'(?P<id>[\d]+)'
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| 			),
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| 			array(
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| 				'args'   => array(
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| 					'parent' => array(
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| 						'description'       => __( 'The id of a template' ),
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| 						'type'              => 'string',
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| 						'sanitize_callback' => array( $this->parent_controller, '_sanitize_template_id' ),
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| 					),
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| 					'id'     => array(
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| 						'description' => __( 'Unique identifier for the revision.' ),
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| 						'type'        => 'integer',
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| 					),
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| 				),
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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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| 						'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::DELETABLE,
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| 					'callback'            => array( $this, 'delete_item' ),
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| 					'permission_callback' => array( $this, 'delete_item_permissions_check' ),
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| 					'args'                => array(
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| 						'force' => array(
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| 							'type'        => 'boolean',
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| 							'default'     => false,
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| 							'description' => __( 'Required to be true, as revisions do not support trashing.' ),
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| 						),
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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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| 	}
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| 
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| 	/**
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| 	 * Gets the parent post, if the ID is valid.
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| 	 *
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| 	 * @since 6.4.0
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| 	 *
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| 	 * @param int $parent_post_id Supplied ID.
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| 	 * @return WP_Post|WP_Error Post object if ID is valid, WP_Error otherwise.
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| 	 */
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| 	protected function get_parent( $parent_post_id ) {
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| 		$template = get_block_template( $parent_post_id, $this->parent_post_type );
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| 
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| 		if ( ! $template ) {
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| 			return new WP_Error(
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| 				'rest_post_invalid_parent',
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| 				__( 'Invalid template parent ID.' ),
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| 				array( 'status' => 404 )
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| 			);
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| 		}
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| 
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| 		return get_post( $template->wp_id );
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| 	}
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| 
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| 	/**
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| 	 * Prepares the item for the REST response.
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| 	 *
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| 	 * @since 6.4.0
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| 	 *
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| 	 * @param WP_Post         $item    Post revision object.
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| 	 * @param WP_REST_Request $request Request object.
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| 	 * @return WP_REST_Response Response object.
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| 	 */
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| 	public function prepare_item_for_response( $item, $request ) {
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| 		$template = _build_block_template_result_from_post( $item );
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| 		$response = $this->parent_controller->prepare_item_for_response( $template, $request );
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| 
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| 		$fields = $this->get_fields_for_response( $request );
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| 		$data   = $response->get_data();
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| 
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| 		if ( in_array( 'parent', $fields, true ) ) {
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| 			$data['parent'] = (int) $item->post_parent;
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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->filter_response_by_context( $data, $context );
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| 
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| 		// Wrap the data in a response object.
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| 		$response = new WP_REST_Response( $data );
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| 
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| 		if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
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| 			$links = $this->prepare_links( $template );
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| 			$response->add_links( $links );
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| 		}
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| 
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| 		return $response;
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| 	}
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| 
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| 	/**
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| 	 * Checks if a given request has access to delete a revision.
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| 	 *
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| 	 * @since 6.4.0
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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 access to delete the item, WP_Error object otherwise.
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| 	 */
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| 	public function delete_item_permissions_check( $request ) {
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| 		$parent = $this->get_parent( $request['parent'] );
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| 		if ( is_wp_error( $parent ) ) {
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| 			return $parent;
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| 		}
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| 
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| 		if ( ! current_user_can( 'delete_post', $parent->ID ) ) {
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| 			return new WP_Error(
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| 				'rest_cannot_delete',
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| 				__( 'Sorry, you are not allowed to delete revisions of this post.' ),
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| 				array( 'status' => rest_authorization_required_code() )
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| 			);
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| 		}
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| 
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| 		$revision = $this->get_revision( $request['id'] );
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| 		if ( is_wp_error( $revision ) ) {
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| 			return $revision;
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| 		}
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| 
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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_delete',
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| 				__( 'Sorry, you are not allowed to delete this revision.' ),
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| 				array( 'status' => rest_authorization_required_code() )
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| 			);
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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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| 	/**
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| 	 * Prepares links for the request.
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| 	 *
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| 	 * @since 6.4.0
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| 	 *
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| 	 * @param WP_Block_Template $template Template.
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| 	 * @return array Links for the given post.
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| 	 */
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| 	protected function prepare_links( $template ) {
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| 		$links = array(
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| 			'self'   => array(
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| 				'href' => rest_url( sprintf( '/%s/%s/%s/%s/%d', $this->namespace, $this->parent_base, $template->id, $this->rest_base, $template->wp_id ) ),
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| 			),
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| 			'parent' => array(
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| 				'href' => rest_url( sprintf( '/%s/%s/%s', $this->namespace, $this->parent_base, $template->id ) ),
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| 			),
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| 		);
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| 
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| 		return $links;
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| 	}
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| 
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| 	/**
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| 	 * Retrieves the item's schema, conforming to JSON Schema.
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| 	 *
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| 	 * @since 6.4.0
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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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| 
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| 		$schema = $this->parent_controller->get_item_schema();
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| 
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| 		$schema['properties']['parent'] = array(
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| 			'description' => __( 'The ID for the parent of the revision.' ),
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| 			'type'        => 'integer',
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| 			'context'     => array( 'view', 'edit', 'embed' ),
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| 		);
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| 
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| 		$this->schema = $schema;
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| 
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| 		return $this->add_additional_fields_schema( $this->schema );
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| 	}
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| }
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