//receiver methods
public void AnswerCall()
{
if (ConnectedClient != null)
{
StreamWriter streamWriter = new StreamWriter(ConnectedClient.GetStream())
{
AutoFlush = true
};
//odesłanie DH razem z komunikatem DH
if (EncryptedCallReceiver)
{
streamWriter.WriteLine(Commands.Ack + ":" + PrepareDHResponseString(DHRequest));
}
else
{
streamWriter.WriteLine(Commands.Ack);
}
Trace.WriteLine("Ack");
if (UDPSenderStart != null)
{
UDPSenderStart.Invoke(remoteEndPointToSendVoice);
}
if (UDPListenerStart != null)
{
UDPListenerStart.Invoke(localEndPoint);
}
}
}
//sender methods
public async void MakeCall(IPEndPoint endPoint, string userName, string receiverName)
{
Trace.WriteLine("username: "******"receiver: " + receiverName);
if (!isCalling)
{
remoteEndPointToSendVoice = endPoint;
isCalling = true;
if (MakeCallEvent != null)
{
MakeCallEvent.Invoke("Dzwonię do: " + receiverName);
}
try
{
Connect(endPoint);
string localIp = (((IPEndPoint)hostTcpClient.Client.LocalEndPoint).Address.ToString());
if (EncryptedCallSender)
{
SendText(Commands.Invite + ":" + localIp + ":" + userName + ":" + PrepareDHRequestString());
}
else
{
SendText(Commands.Invite + ":" + localIp + ":" + userName);
}
while (isCalling)
{
var msg = await ReceiveTextAsync();
if (msg.StartsWith(Commands.Busy))
{
ErrorEvent.Invoke("Zajęte");
BusyUserInfoEvent.Invoke("Użytkownik jest w trakcie rozmowy!");
}
else if (msg.StartsWith(Commands.Reject))
{
BreakCall();
}
else if (msg.StartsWith(Commands.Ack))
{
var msgAfterSplit = msg.Split(new char[] { ':' }, 2);
if (msgAfterSplit.Length == 2)
{
DHServer.HandleResponse(msgAfterSplit[1]);
DHKey = DHServer.Key;
}
if (UDPSenderStart != null)
{
UDPSenderStart.Invoke(remoteEndPointToSendVoice);
}
if (UDPListenerStart != null)
{
UDPListenerStart.Invoke(localEndPoint);
}
//Akceptacja połączenia - zmiana gui
if (TalkEvent != null)
{
TalkEvent.Invoke(receiverName);
}
}
else
{
ErrorEvent.Invoke(msg);
}
}
}
catch (Exception e)
{
isCalling = false;
if (ErrorEvent != null)
{
ErrorEvent.Invoke(e.Message);
}
if (EndCall != null)
{
EndCall.Invoke();
}
}
}
}