Automattic / jetpack

				return $suppress_errors ? false : new \WP_Error( 'no_token_for_user', sprintf( __( 'No token for user %d', 'jetpack' ), $user_id ) );

			}

			$user_token_chunks = explode( '.', $user_tokens[ $user_id ] );

			if ( empty( $user_token_chunks[1] ) || empty( $user_token_chunks[2] ) ) {

				// translators: %s is the user ID.

				return $suppress_errors ? false : new \WP_Error( 'token_malformed', sprintf( __( 'Token for user %d is malformed', 'jetpack' ), $user_id ) );

			}

			if ( $user_token_chunks[2] !== (string) $user_id ) {

				// translators: %1$d is the ID of the requested user. %2$d is the user ID found in the token.

				return $suppress_errors ? false : new \WP_Error( 'user_id_mismatch', sprintf( __( 'Requesting user_id %1$d does not match token user_id %2$d', 'jetpack' ), $user_id, $user_token_chunks[2] ) );

	 */

	public static function normalize_url_protocol_agnostic( $url ) {

		$parsed_url = wp_parse_url( trailingslashit( esc_url_raw( $url ) ) );

		if ( ! $parsed_url || empty( $parsed_url['host'] ) || empty( $parsed_url['path'] ) ) {

			return new WP_Error( 'cannot_parse_url', sprintf( esc_html__( 'Cannot parse URL %s', 'jetpack' ), $url ) );

		}

		// Strip www and protocols

		$url = preg_replace( '/^www\./i', '', $parsed_url['host'] . $parsed_url['path'] );