@aikidosec/firewall/helpers/hostnameToUnicode.js

Zen by Aikido is an embedded Application Firewall that autonomously protects Node.js apps against common and critical attacks, provides rate limiting, detects malicious traffic (including bots), and more.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.hostnameToUnicode = hostnameToUnicode;
const url_1 = require("url");
/**
 * Converts a punycode hostname to its unicode form.
 * e.g. "xn--mnchen-3ya.example.com" -> "münchen.example.com"
 *
 * Returns the original hostname if conversion fails or produces an empty result.
 */
function hostnameToUnicode(hostname) {
    try {
        const unicode = (0, url_1.domainToUnicode)(hostname);
        if (unicode) {
            return unicode;
        }
    }
    catch {
        // Ignore
    }
    return hostname;
}