WP_Error( 'invalid_format', __( 'Invalid cookie format.' ) );
		}

		return $parts;
	}

	/**
	 * Generates the recovery mode cookie value.
	 *
	 * The cookie is a base64 encoded string with the following format:
	 *
	 * recovery_mode|iat|rand|signature
	 *
	 * Where "recovery_mode" is a constant string,
	 * iat is the time the cookie was generated at,
	 * rand is a randomly generated password that is also used as a session identifier
	 * and signature is an hmac of the preceding 3 parts.
	 *
	 * @since 5.2.0
	 *
	 * @return string Generated cookie content.
	 */
	private function generate_cookie() {
		$to_sign = sprintf( 'recovery_mode|%s|%s', time(), wp_generate_password( 20, false ) );
		$signed  = $this->recovery_mode_hash( $to_sign );

		return base64_encode( sprintf( '%s|%s', $to_sign, $signed ) );
	}

	/**
	 * Gets a form of `wp_hash()` specific to Recovery Mode.
	 *
	 * We cannot use `wp_hash()` because it is defined in `pluggable.php` which is not loaded until after plugins are loaded,
	 * which is too late to verify the recovery mode cookie.
	 *
	 * This tries to use the `AUTH` salts first, but if they aren't valid specific salts will be generated and stored.
	 *
	 * @since 5.2.0
	 *
	 * @param string $data Data to hash.
	 * @return string|false The hashed $data, or false on failure.
	 */
	private function recovery_mode_hash( $data ) {
		$default_keys = array_unique(
			array(
				'put your unique phrase here',
				/*
				 * translators: This string should only be translated if wp-config-sample.php is localized.
				 * You can check the localized release package or
				 * https://i18n.svn.wordpress.org/<locale code>/branches/<wp version>/dist/wp-config-sample.php
				 */
				__( 'put your unique phrase here' ),
			)
		);

		if ( ! defined( 'AUTH_KEY' ) || in_array( AUTH_KEY, $default_keys, true ) ) {
			$auth_key = get_site_option( 'recovery_mode_auth_key' );

			if ( ! $auth_key ) {
				if ( ! function_exists( 'wp_generate_password' ) ) {
					require_once ABSPATH . WPINC . '/pluggable.php';
				}

				$auth_key = wp_generate_password( 64, true, true );
				update_site_option( 'recovery_mode_auth_key', $auth_key );
			}
		} else {
			$auth_key = AUTH_KEY;
		}

		if ( ! defined( 'AUTH_SALT' ) || in_array( AUTH_SALT, $default_keys, true ) || AUTH_SALT === $auth_key ) {
			$auth_salt = get_site_option( 'recovery_mode_auth_salt' );

			if ( ! $auth_salt ) {
				if ( ! function_exists( 'wp_generate_password' ) ) {
					require_once ABSPATH . WPINC . '/pluggable.php';
				}

				$auth_salt = wp_generate_password( 64, true, true );
				update_site_option( 'recovery_mode_auth_salt', $auth_salt );
			}
		} else {
			$auth_salt = AUTH_SALT;
		}

		$secret = $auth_key . $auth_salt;

		return hash_hmac( 'sha1', $data, $secret );
	}
}
 ) {
			unset( $post_type_meta_caps[ $cap ] );
		}
	}

	/**
	 * Unregisters the post type meta box if a custom callback was specified.
	 *
	 * @since 4.6.0
	 */
	public function unregister_meta_boxes() {
		if ( $this->register_meta_box_cb ) {
			remove_action( 'add_meta_boxes_' . $this->name, $this->register_meta_box_cb, 10 );
		}
	}

	/**
	 * Removes the post type from all taxonomies.
	 *
	 * @since 4.6.0
	 */
	public function unregister_taxonomies() {
		foreach ( get_object_taxonomies( $this->name ) as $taxonomy ) {
			unregister_taxonomy_for_object_type( $taxonomy, $this->name );
		}
	}

	/**
	 * Removes the future post hook action for the post type.
	 *
	 * @since 4.6.0
	 */
	public function remove_hooks() {
		remove_action( 'future_' . $this->name, '_future_post_hook', 5 );
	}

	/**
	 * Gets the REST API controller for this post type.
	 *
	 * Will only instantiate the controller class once per request.
	 *
	 * @since 5.3.0
	 *
	 * @return WP_REST_Controller|null The controller instance, or null if the post type
	 *                                 is set not to show in rest.
	 */
	public function get_rest_controller() {
		if ( ! $this->show_in_rest ) {
			return null;
		}

		$class = $this->rest_controller_class ? $this->rest_controller_class : WP_REST_Posts_Controller::class;

		if ( ! class_exists( $class ) ) {
			return null;
		}

		if ( ! is_subclass_of( $class, WP_REST_Controller::class ) ) {
			return null;
		}

		if ( ! $this->rest_controller ) {
			$this->rest_controller = new $class( $this->name );
		}

		if ( ! ( $this->rest_controller instanceof $class ) ) {
			return null;
		}

		return $this->rest_controller;
	}

	/**
	 * Returns the default labels for post types.
	 *
	 * @since 6.0.0
	 *
	 * @return (string|null)[][] The default labels for post types.
	 */
	public static function get_default_labels() {
		if ( ! empty( self::$default_labels ) ) {
			return self::$default_labels;
		}

		self::$default_labels = array(
			'name'                     => array( _x( 'Posts', 'post type general name' ), _x( 'Pages', 'post type general name' ) ),
			'singular_name'            => array( _x( 'Post', 'post type singular name' ), _x( 'Page', 'post type singular name' ) ),
			'add_new'                  => array( _x( 'Add New', 'post' ), _x( 'Add New', 'page' ) ),
			'add_new_item'             => array( __( 'Add New Post' ), __( 'Add New Page' ) ),
			'edit_item'                => array( __( 'Edit Post' ), __( 'Edit Page' ) ),
			'new_item'                 => array( __( 'New Post' ), __( 'New Page' ) ),
			'view_item'                => array( __( 'View Post' ), __( 'View Page' ) ),
			'view_items'               => array( __( 'View Posts' ), __( 'View Pages' ) ),
			'search_items'             => array( __( 'Search Posts' ), __( 'Search Pages' ) ),
			'not_found'                => array( __( 'No posts found.' ), __( 'No pages found.' ) ),
			'not_found_in_trash'       => array( __( 'No posts found in Trash.' ), __( 'No pages found in Trash.' ) ),
			'parent_item_colon'        => array( null, __( 'Parent Page:' ) ),
			'all_items'                => array( __( 'All Posts' ), __( 'All Pages' ) ),
			'archives'                 => array( __( 'Post Archives' ), __( 'Page Archives' ) ),
			'attributes'               => array( __( 'Post Attributes' ), __( 'Page Attributes' ) ),
			'insert_into_item'         => array( __( 'Insert into post' ), __( 'Insert into page' ) ),
			'uploaded_to_this_item'    => array( __( 'Uploaded to this post' ), __( 'Uploaded to this page' ) ),
			'featured_image'           => array( _x( 'Featured image', 'post' ), _x( 'Featured image', 'page' ) ),
			'set_featured_image'       => array( _x( 'Set featured image', 'post' ), _x( 'Set featured image', 'page' ) ),
			'remove_featured_image'    => array( _x( 'Remove featured image', 'post' ), _x( 'Remove featured image', 'page' ) ),
			'use_featured_image'       => array( _x( 'Use as featured image', 'post' ), _x( 'Use as featured image', 'page' ) ),
			'filter_items_list'        => array( __( 'Filter posts list' ), __( 'Filter pages list' ) ),
			'filter_by_date'           => array( __( 'Filter by date' ), __( 'Filter by date' ) ),
			'items_list_navigation'    => array( __( 'Posts list navigation' ), __( 'Pages list navigation' ) ),
			'items_list'               => array( __( 'Posts list' ), __( 'Pages list' ) ),
			'item_published'           => array( __( 'Post published.' ), __( 'Page published.' ) ),
			'item_published_privately' => array( __( 'Post published privately.' ), __( 'Page published privately.' ) ),
			'item_reverted_to_draft'   => array( __( 'Post reverted to draft.' ), __( 'Page reverted to draft.' ) ),
			'item_trashed'             => array( __( 'Post trashed.' ), __( 'Page trashed.' ) ),
			'item_scheduled'           => array( __( 'Post scheduled.' ), __( 'Page scheduled.' ) ),
			'item_updated'             => array( __( 'Post updated.' ), __( 'Page updated.' ) ),
			'item_link'                => array(
				_x( 'Post Link', 'navigation link block title' ),
				_x( 'Page Link', 'navigation link block title' ),
			),
			'item_link_description'    => array(
				_x( 'A link to a post.', 'navigation link block description' ),
				_x( 'A link to a page.', 'navigation link block description' ),
			),
		);

		return self::$default_labels;
	}

	/**
	 * Resets the cache for the default labels.
	 *
	 * @since 6.0.0
	 */
	public static function reset_default_labels() {
		self::$default_labels = array();
	}
}