public async Task Connect(string host, string auth, bool isSecure, string group = null, string code = null)
{
Hostname = host;
Authentification = auth;
State = "Verbinde...";
IsActive = true;
try
{
socket = new ClientWebSocket();
socket.Options.AddSubProtocol("chat");
await socket.ConnectAsync(new Uri((isSecure ? "wss://":"ws://") + host), source.Token);
int seq = SequenceNumber++;
AuthRequest msg = new AuthRequest(auth, seq, group, code);
ReceiveTokenSource = new CancellationTokenSource();
ProcessReceivingMessages();
await socket.SendAsync(msg.GetBytes(), WebSocketMessageType.Binary, true, source.Token);
IRemoteMessage resp = await WaitForResponse(seq);
if (resp is StateResponse)
{
StateResponse response = (StateResponse)resp;
switch (response.Code)
{
case StateCodes.WrongKey:
throw new Exception("Authentifizierung am Server fehlgeschlagen");
case StateCodes.GroupNotFound:
throw new Exception("Angegebene Gruppe ist nicht auf dem Server vorhanden");
case StateCodes.WrongGroupKey:
throw new Exception("Authentifizierung in der Gruppe fehlgeschlagen");
}
}
else if (resp is AuthResponse)
{
AuthResponse response = (AuthResponse)resp;
Group = response.Group;
State = "Verbunden (" + Group + ")";
}
else
{
throw new Exception("Ungültige Antwort erhalten: " + resp.GetType().ToString());
}
} catch (Exception ex)
{
State = ex.Message;
IsActive = false;
IsConnected = false;
}
}
