'use strict';
/**
* Check if we're required to add a port number.
*
* @see https://url.spec.whatwg.org/#default-port
* @param {Number|String} port Port number we need to check
* @param {String} protocol Protocol we need to check against.
* @returns {Boolean} Is it a default port for the given protocol
* @api private
*/
module.exports = function required(port, protocol) {
protocol = protocol.split(':')[0];
port = +port;
if (!port) return false;
switch (protocol) {
case 'http':
case 'ws':
return port !== 80;
case 'https':
case 'wss':
return port !== 443;
case 'ftp':
return port !== 21;
case 'gopher':
return port !== 70;
case 'file':
return false;
}
return port !== 0;
};