/// <summary>
///
/// </summary>
/// <param name="call"></param>
/// <param name="prefixInfo"></param>
/// <returns></returns>
internal XDocument QRZRequest(string call)
{
WebResponse webResponse;
WebRequest webRequest;
XDocument xDocument = new XDocument();
string requestUri = null;
try
{
if (QRZSessionKey == null)
{
OnErrorDetected?.Invoke("Session key is missing.");
}
requestUri = string.Format("http://xmldata.qrz.com/xml/current/?s={0};callsign={1}", QRZSessionKey, call);
webRequest = WebRequest.Create(requestUri);
webResponse = webRequest.GetResponse();
xDocument = XDocument.Load(webResponse.GetResponseStream());
if (!CheckForValidData(xDocument))
{
xDocument = null;
}
}
catch (Exception ex)
{
OnErrorDetected?.Invoke(ex.Message);
}
return(xDocument);
}
private bool SendMatrixBytes(Socket sock, byte[] bytes)
{
byte[] buffer = new byte[BUFSIZE];
int bytesToSend = bytes.Length;
using (MemoryStream ms = new MemoryStream(bytes))
{
do
{
try
{
int packet = ms.Read(buffer, 0, BUFSIZE);
sock.Send(buffer);
bytesToSend -= packet;
}
catch (Exception e)
{
if (OnErrorDetected != null)
{
OnErrorDetected.Invoke(e.ToString());
}
return(false);
}
} while (bytesToSend > 0);
}
return(true);
}
private byte[] ReceiveMatrixBytes(Socket sock)
{
int bytesToReceive;
byte[] recv = new byte[BUFSIZE];
try
{
byte[] dataLen = new byte[INT32BDEPTH];
int numbytes = sock.Receive(dataLen);
if (numbytes != INT32BDEPTH)
{
return(new byte[0]);
}
bytesToReceive = BitConverter.ToInt32(dataLen, 0);
if (bytesToReceive == 0)
{
return(new byte[0]);
}
}
catch (Exception e)
{
if (OnErrorDetected != null)
{
OnErrorDetected.Invoke(e.ToString());
}
return(new byte[0]);
}
byte[] bytes = new byte[bytesToReceive];
using (MemoryStream ms = new MemoryStream(bytes))
{
while (bytesToReceive > 0)
{
try
{
int packet = sock.Receive(recv);
ms.Write(recv, 0, packet);
bytesToReceive -= packet;
}
catch (Exception e)
{
if (OnErrorDetected != null)
{
OnErrorDetected.Invoke(e.ToString());
}
bytes = new byte[0];
break;
}
}
}
return(bytes);
}
private bool TryConnect(Socket sock)
{
try
{
sock.Connect(ipEndPoint);
return(true);
}
catch (Exception e)
{
if (OnErrorDetected != null)
{
OnErrorDetected.Invoke(e.ToString());
}
sock.Disconnect(true);
return(false);
}
}
/// <summary>
/// Logon to QRZ.com - TODO: Add credentials to Config screen
/// Save the session key.
/// </summary>
/// <returns></returns>
internal bool QRZLogon(string userId, string password)
{
switch (QRZSessionKey)
{
case null:
{
var requestUri = string.Format("http://xmldata.qrz.com/xml/current/?username={0};password={1};{2}={3}", userId, password, "CallParser", "2.0");
var request = WebRequest.Create(requestUri);
var response = request.GetResponse();
XDocument xDocument = XDocument.Load(response.GetResponseStream());
XNamespace xname = "http://xmldata.qrz.com";
var error = xDocument.Descendants(xname + "Session").Select(x => x.Element(xname + "Error")).FirstOrDefault();
if (error == null)
{
var key = xDocument.Descendants(xname + "Session").Select(x => x.Element(xname + "Key").Value).FirstOrDefault();
QRZSessionKey = key.ToString();
return(true);
}
else
{
QRZSessionKey = null;
OnErrorDetected?.Invoke(error.Value);
}
break;
}
default:
return(true);
}
return(false);
}
