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/var/www/html/node-red/node_modules/http2-wrapper/source/utils/   drwxr-xr-x
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Viewing file:     calculate-server-name.js (599 B)      -rw-r--r--

'use strict';
const net = require('net');
/* istanbul ignore file: https://github.com/nodejs/node/blob/v13.0.1/lib/_http_agent.js */

module.exports = options => {
	let servername = options.host;
	const hostHeader = options.headers && options.headers.host;

	if (hostHeader) {
		if (hostHeader.startsWith('[')) {
			const index = hostHeader.indexOf(']');
			if (index === -1) {
				servername = hostHeader;
			} else {
				servername = hostHeader.slice(1, -1);
			}
		} else {
			servername = hostHeader.split(':', 1)[0];
		}
	}

	if (net.isIP(servername)) {
		return '';
	}

	return servername;
};