Ejemplo n.º 1
0
// Server returns the whois server and optional URL for a given query.
// Returns an error if it cannot resolve query to any known host.
func Server(query string) (string, string, error) {
	// Queries on TLDs always against IANA
	if strings.Index(query, ".") < 0 {
		return IANA, "", nil
	}
	z := zonedb.PublicZone(query)
	if z == nil {
		return "", "", fmt.Errorf("no public zone found for %s", query)
	}
	host := z.WhoisServer()
	wu := z.WhoisURL()
	if host != "" {
		return host, wu, nil
	}
	u, err := url.Parse(wu)
	if err == nil && u.Host != "" {
		return u.Host, wu, nil
	}
	return "", "", fmt.Errorf("no whois server found for %s", query)
}
Ejemplo n.º 2
0
// lookupWhoisServer digs into zonedb to find the whois server for the given
// tld. If no server is found (or domain is invalid) an error will be returned.
func lookupWhoisServer(domain string) (string, error) {
	_, err := url.Parse(domain)
	if err != nil {
		return "", err
	}

	split := strings.Split(domain, ".")
	// We assume there's at least a 'google' and 'com'
	if len(split) < 2 {
		return "", fmt.Errorf("Unable to parse domain (and find tld) for %s (split = %s)", domain, split)
	}

	zone := zonedb.PublicZone(domain)
	if zone == nil {
		return "", fmt.Errorf("unable to find zone for domain = %s", domain)
	}

	host := zone.WhoisServer()
	if host != "" {
		return host, nil
	}

	return "", fmt.Errorf("error finding whois server (empty host) for domain %s", domain)
}