Function whoisHandler

api/whois.js:99–132

(url)

// Resolve domain registration data via whoiser, with rdap.org as a fallback for TLD gaps
const whoisHandler = async (url) => {
  const { hostname } = parseTarget(url);
  if (net.isIP(hostname)) {
    return { skipped: 'WHOIS lookups apply to domains, not IP addresses' };
  }
  const target = baseDomain(hostname);
  let results = {};
  try {
    results = await whoisDomain(target, { follow: 2, timeout: TIMEOUT });
  } catch (error) {
    log.debug(`whoisDomain failed for ${target}: ${error.message}`);
  }
  if (!hasUsefulData(results)) {
    const rdap = await fetchRdapFallback(target);
    if (rdap) results = { ...results, 'rdap.org': rdap };
  }
  if (!hasUsefulData(results)) {
    return { skipped: 'No WHOIS data available for this domain' };
  }
  return {
    domain: pick(results, 'Domain Name') || target,
    registrar: pick(results, 'Registrar'),
    registrarUrl: pick(results, 'Registrar URL'),
    registrarIanaId: pick(results, 'Registrar IANA ID'),
    registrarWhoisServer: pick(results, 'Registrar WHOIS Server'),
    registryDomainId: pick(results, 'Registry Domain ID'),
    created: toIso(pick(results, 'Created Date', 'Creation Date')),
    updated: toIso(pick(results, 'Updated Date')),
    expires: toIso(pick(results, 'Expiry Date', 'Registry Expiry Date', 'Expiration Date')),
    nameservers: cleanNs(pick(results, 'Name Server')),
    status: pick(results, 'Domain Status'),
    dnssec: pick(results, 'DNSSEC'),
  };
};

export const handler = middleware(whoisHandler);
export default handler;