void OnResponseReceived(WhoisEventArgs e)
{
if (ResponseReceived != null)
{
ResponseReceived(this, e);
}
}
string DoRequest(string server)
{
WhoisEventArgs wea = new WhoisEventArgs(
_url,
_tld,
server,
"Trying to connect to " + server + " (query : " + _domain + ") ...\r\n"
);
OnResponseReceived(wea);
string response = "";
TcpClient client = null;
try
{
client = new TcpClient(server, 43);
}
catch (Exception ex)
{
wea = new WhoisEventArgs(
_url,
_targetServer,
_targetServer,
"Connection to server " + server + " failed : \r\n" +
ex.Message + "\r\n\r\n"
);
OnResponseReceived(wea);
}
if (client != null)
{
string formatedDomain = _domain + "\r\n";
byte[] byteUrl = Encoding.ASCII.GetBytes(formatedDomain);
Stream s = client.GetStream();
bool error = true;
try
{
wea = new WhoisEventArgs(
_url,
_targetServer,
_targetServer,
"Connection to server " + _targetServer +
" established. Executing query ...\r\n\r\n"
);
OnResponseReceived(wea);
s.Write(byteUrl, 0, formatedDomain.Length);
error = false;
}
catch (Exception ex)
{
wea = new WhoisEventArgs(
_url,
_targetServer,
_targetServer,
"Unable to perform query : \r\n" + ex.Message + "\r\n\r\n"
);
OnResponseReceived(wea);
}
if (!error)
{
StreamReader sr = new StreamReader(s, Encoding.ASCII);
response = sr.ReadToEnd() + "\r\n";
sr.Close();
sr.Dispose();
sr = null;
wea = new WhoisEventArgs(
_url,
_targetServer,
_targetServer,
response
);
OnResponseReceived(wea);
}
s.Close();
s.Dispose();
s = null;
client.Close();
client = null;
}
return(response);
}