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