30 lines
449 B
Plaintext
30 lines
449 B
Plaintext
'use strict';
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const {isIP} = require('net');
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const assert = require('assert');
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const getHost = host => {
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if (host[0] === '[') {
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const idx = host.indexOf(']');
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assert(idx !== -1);
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return host.slice(1, idx);
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}
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const idx = host.indexOf(':');
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if (idx === -1) {
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return host;
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}
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return host.slice(0, idx);
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};
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module.exports = host => {
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const servername = getHost(host);
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if (isIP(servername)) {
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return '';
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}
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return servername;
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};
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