private IPEndPoint FindReachableEndpoint(ClientInfo CI)
{
if (OnResultsUpdate != null)
OnResultsUpdate.Invoke(this, "Attempting to Connect via LAN");
for (int ip = 0; ip < CI.InternalAddresses.Count; ip++)
{
if (!TCPClient.Connected)
break;
IPAddress IP = CI.InternalAddresses[ip];
IPEndPoint EP = new IPEndPoint(IP, CI.InternalEndpoint.Port);
for (int i = 1; i < 4; i++)
{
if (!TCPClient.Connected)
break;
if (OnResultsUpdate != null)
OnResultsUpdate.Invoke(this, "Sending Ack to " + EP.ToString() + ". Attempt " + i + " of 3");
SendMessageUDP(new Ack(LocalClientInfo.ID), EP);
Thread.Sleep(200);
Ack Responce = AckResponces.FirstOrDefault(a => a.RecipientID == CI.ID);
if (Responce != null)
{
if (OnResultsUpdate != null)
OnResultsUpdate.Invoke(this, "Received Ack Responce from " + EP.ToString());
CI.ConnectionType = ConnectionTypes.LAN;
AckResponces.Remove(Responce);
return EP;
}
}
}
if (CI.ExternalEndpoint != null)
{
if (OnResultsUpdate != null)
OnResultsUpdate.Invoke(this, "Attempting to Connect via Internet");
for (int i = 1; i < 100; i++)
{
if (!TCPClient.Connected)
break;
if (OnResultsUpdate != null)
OnResultsUpdate.Invoke(this, "Sending Ack to " + CI.ExternalEndpoint + ". Attempt " + i + " of 99");
SendMessageUDP(new Ack(LocalClientInfo.ID), CI.ExternalEndpoint);
Thread.Sleep(300);
Ack Responce = AckResponces.FirstOrDefault(a => a.RecipientID == CI.ID);
if (Responce != null)
{
if (OnResultsUpdate != null)
OnResultsUpdate.Invoke(this, "Received Ack New from " + CI.ExternalEndpoint.ToString());
CI.ConnectionType = ConnectionTypes.WAN;
AckResponces.Remove(Responce);
return CI.ExternalEndpoint;
}
}
if (OnResultsUpdate != null)
OnResultsUpdate.Invoke(this, "Connection to " + CI.Name + " failed");
}
else
{
if (OnResultsUpdate != null)
OnResultsUpdate.Invoke(this, "Client's External EndPoint is Unknown");
}
return null;
}
public MessageReceivedEventArgs(ClientInfo _clientInfo, Message _message, IPEndPoint _establishedEP)
{
clientInfo = _clientInfo;
message = _message;
EstablishedEP = _establishedEP;
}
public void ConnectToClient(ClientInfo CI)
{
Req R = new Req(LocalClientInfo.ID, CI.ID);
SendMessageTCP(R);
if (OnResultsUpdate != null)
OnResultsUpdate.Invoke(this, "Sent Connection Request To: " + CI.ToString());
Thread Connect = new Thread(new ThreadStart(delegate
{
IPEndPoint ResponsiveEP = FindReachableEndpoint(CI);
if (ResponsiveEP != null)
{
if (OnResultsUpdate != null)
OnResultsUpdate.Invoke(this, "Connection Successfull to: " + ResponsiveEP.ToString());
if (OnClientConnection != null)
OnClientConnection.Invoke(CI, ResponsiveEP);
}
}));
Connect.IsBackground = true;
Connect.Start();
}
