public static bool IsLocalhost(string hostNameOrAddress)
{
if (string.IsNullOrEmpty(hostNameOrAddress))
{
return(false);
}
try
{
var hostIPs = new IPAddress[0];
if (Uri.IsWellFormedUriString(hostNameOrAddress, UriKind.RelativeOrAbsolute))
{
var uri = new Uri(hostNameOrAddress);
hostIPs = Dns.GetHostAddresses(uri.DnsSafeHost);
}
var localIPs = Dns.GetHostAddresses(Dns.GetHostName());
return(hostIPs.Any(hostIP => IPAddress.IsLoopback(hostIP) ||
localIPs.Contains(hostIP)));
}
catch
{
return(false);
}
}