public static List <ReverseDns> PraseReverseDns(string PTRText)
{
List <ReverseDns> result = new List <ReverseDns>();
if (!string.IsNullOrWhiteSpace(PTRText))
{
var sep = ";,".ToCharArray();
var splited = PTRText.Split(sep, StringSplitOptions.RemoveEmptyEntries);
foreach (var item in splited)
{
if (item.IndexOf(":") != -1)
{
var index = item.IndexOf(":");
var ip = item.Substring(0, index);
var domain = item.Substring(index + 1);
ReverseDns record = new ReverseDns()
{
IP = ip.Trim(), HostName = domain.Trim()
};
result.Add(record);
}
}
}
return(result);
}
public async Task should_get_reverse_dns_data()
{
var rd = new ReverseDns();
var actual = await rd.DoLookUp("69.109.161.49", AddressType.Ip);
Assert.IsNotNull(actual.Data);
Assert.AreEqual(ServiceStatus.Ok, actual.Status);
}
public async Task should_have_reverse_dns_user_error()
{
var rd = new ReverseDns();
var actual = await rd.DoLookUp("calebukle.com", AddressType.DomainName);
Assert.IsNull(actual.Data);
Assert.IsNotNull(actual.ErrorMessage);
Assert.AreEqual(ServiceStatus.Bad, actual.Status);
}
public async Task should_handle_reverse_dns_format_error()
{
var rd = new ReverseDns();
var actual = await rd.DoLookUp("blahg.bad.ip", AddressType.Ip);
Assert.IsNull(actual.Data);
Assert.IsNotNull(actual.ErrorMessage);
Assert.AreEqual(ServiceStatus.Bad, actual.Status);
}
public async Task should_handle_reverse_dns_socket_error()
{
var rd = new ReverseDns();
// ip address that shouldn't resolve.
var actual = await rd.DoLookUp("18.45.89.54", AddressType.Ip);
Assert.IsNull(actual.Data);
Assert.IsNotNull(actual.ErrorMessage);
Assert.AreEqual(ServiceStatus.Error, actual.Status);
}
