WP_REST_Edit_Site_Export_Controller

17class WP_REST_Edit_Site_Export_Controller extends WP_REST_Controller {18 19	/**20	 * Constructor.21	 *22	 * @since 5.9.023	 */24	public function __construct() {25		$this->namespace = 'wp-block-editor/v1';26		$this->rest_base = 'export';27	}28 29	/**30	 * Registers the site export route.31	 *32	 * @since 5.9.033	 */34	public function register_routes() {35		register_rest_route(36			$this->namespace,37			'/' . $this->rest_base,38			array(39				array(40					'methods'             => WP_REST_Server::READABLE,41					'callback'            => array( $this, 'export' ),42					'permission_callback' => array( $this, 'permissions_check' ),43				),44			)45		);46	}47 48	/**49	 * Checks whether a given request has permission to export.50	 *51	 * @since 5.9.052	 *53	 * @return true|WP_Error True if the request has access, or WP_Error object.54	 */55	public function permissions_check() {56		if ( current_user_can( 'export' ) ) {57			return true;58		}59 60		return new WP_Error(61			'rest_cannot_export_templates',62			__( 'Sorry, you are not allowed to export templates and template parts.' ),63			array( 'status' => rest_authorization_required_code() )64		);65	}66 67	/**68	 * Output a ZIP file with an export of the current templates69	 * and template parts from the site editor, and close the connection.70	 *71	 * @since 5.9.072	 *73	 * @return void|WP_Error74	 */75	public function export() {76		// Generate the export file.77		$filename = wp_generate_block_templates_export_file();78 79		if ( is_wp_error( $filename ) ) {80			$filename->add_data( array( 'status' => 500 ) );81 82			return $filename;83		}84 85		$theme_name = basename( get_stylesheet() );86		header( 'Content-Type: application/zip' );87		header( 'Content-Disposition: attachment; filename=' . $theme_name . '.zip' );88		header( 'Content-Length: ' . filesize( $filename ) );89		flush();90		readfile( $filename );91		unlink( $filename );92		exit;93	}94}