protected void Validate()
{
string currentDomain = Domain;
if (!string.IsNullOrEmpty(currentDomain))
{
try
{
string domainToUse = currentDomain.StartsWith("http", StringComparison.OrdinalIgnoreCase) ? currentDomain : "http://" + currentDomain;
Uri url = new Uri(domainToUse);
System.Net.Dns.GetHostEntry(url.Host);
}
catch (UriFormatException)
{
throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, "URL not valid: {0}", currentDomain));
}
catch (SocketException)
{
// Domains must not be resolvable - it is perfectly valid for a domain not to
// have an IP address - hence, just throwing is incorrect. As a safety measure,
// check to see if the domain is a part of the fqdn of the local host - this will
// make sure some tests in CookieImplementationTest will pass.
if (currentHost == null || !currentHost.Contains(currentDomain))
{
throw new ArgumentException(String.Format(CultureInfo.InvariantCulture, "Domain unknown: {0}", currentDomain));
}
//// no IP - unreasonable in any modern os has localhost address.
}
}
}
