/// <summary>
/// Serve the current UDP client
/// </summary>
async Task ServeClient(UdpReceiveResult result)
{
try {
byte[] receivedBytes = result.Buffer;
IPEndPoint receivedIpEndPoint = result.RemoteEndPoint;
MemoryStream stream = new MemoryStream(receivedBytes);
stream.Position = 0;
DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(Host));
Host received = (Host)ser.ReadObject(stream);
// Check if the remote user is not us
if (_referenceData.GetListIps().Contains(receivedIpEndPoint.Address.ToString()))
{
return;
}
// Update network information if needed
if (_referenceData.UpdateNetworkConfiguration(receivedIpEndPoint.Address.ToString()))
{
if (!_referenceData.isFirst)
{
await MainWindow.main.Dispatcher.BeginInvoke(DispatcherPriority.Normal, new Action(() => {
MainWindow.main.StopTCPListener();
}));
}
else
{
_referenceData.isFirst = false;
}
// Pulse monitor to advise the TCPlistener to start
lock (_referenceData.cvListener) {
Monitor.Pulse(_referenceData.cvListener);
}
}
// Update user data if needed
if (_referenceData.UpdateUsersInfo(received, receivedIpEndPoint.Address.ToString()))
{
string ip = receivedIpEndPoint.Address.ToString();
await MainWindow.main.Dispatcher.BeginInvoke(DispatcherPriority.Normal, new Action(() => {
MainWindow.main.UpdateProfileHost(ip);
MainWindow.main.UpdateHostName(ip, received.Name);
MainWindow.main.SendProfileImage();
}));
}
}
catch (AggregateException ae) {
Console.WriteLine($"{DateTime.Now.ToString()}\t - UDPListener AggregateException: {ae.Message}");
lock (_referenceData.cvListener) {
Monitor.Pulse(_referenceData.cvListener);
}
}
catch (SerializationException se) {
Console.WriteLine($"{DateTime.Now.ToString()}\t - UDPListener SerializationException - UDP Packet is in the wrong format: {se.Message}");
lock (_referenceData.cvListener) {
Monitor.Pulse(_referenceData.cvListener);
}
}
catch (Exception se) {
Console.WriteLine($"{DateTime.Now.ToString()}\t - UDPListener Exception - {se.Message}");
lock (_referenceData.cvListener) {
Monitor.Pulse(_referenceData.cvListener);
}
}
}
