Automattic / jetpack

				return new WP_Error( 'invalid_signature', sprintf( 'The required "%s" parameter is malformed.', str_replace( '_', '-', $required ) ), compact( 'signature_details' ) );

			}

			if ( ! strlen( $$required ) ) {

				return new WP_Error( 'invalid_signature', sprintf( 'The required "%s" parameter is missing.', str_replace( '_', '-', $required ) ), compact( 'signature_details' ) );

			}

		}

		if ( empty( $body ) ) {

			}

		}

		if ( ! ctype_digit( "$timestamp" ) || 10 < strlen( $timestamp ) ) { // If Jetpack is around in 275 years, you can blame mdawaffe for the bug.

			return new WP_Error( 'invalid_signature', sprintf( 'The required "%s" parameter is malformed.', 'timestamp' ), compact( 'signature_details' ) );

		}

		$local_time = $timestamp - $this->time_diff;

		if ( $local_time < time() - 600 || $local_time > time() + 300 ) {

		}

		$local_time = $timestamp - $this->time_diff;

		if ( $local_time < time() - 600 || $local_time > time() + 300 ) {

			return new WP_Error( 'invalid_signature', 'The timestamp is too old.', compact( 'signature_details' ) );

		}

		if ( 12 < strlen( $nonce ) || preg_match( '/[^a-zA-Z0-9]/', $nonce ) ) {

			return new WP_Error( 'invalid_signature', sprintf( 'The required "%s" parameter is malformed.', 'nonce' ), compact( 'signature_details' ) );

			return new WP_Error( 'invalid_signature', 'The timestamp is too old.', compact( 'signature_details' ) );

		}

		if ( 12 < strlen( $nonce ) || preg_match( '/[^a-zA-Z0-9]/', $nonce ) ) {

			return new WP_Error( 'invalid_signature', sprintf( 'The required "%s" parameter is malformed.', 'nonce' ), compact( 'signature_details' ) );

		}

		$normalized_request_pieces = array(

			$token,