internal IObservable <string> CreateWebsocketListenerObservable(
Stream tcpStream,
IEnumerable <string> subProtocols = null)
{
ParserDelegate = new HttpParserDelegate();
var parserHandler = new HttpCombinedParser(ParserDelegate);
_textDataParser.Reinitialize();
_tcpStream = tcpStream;
_observerDataReceiveMode.OnNext(DataReceiveState.IsListeningForHandShake);
_dataReceiveState = DataReceiveState.IsListeningForHandShake;
var listenerObservable = Observable.Create <string>(
obs =>
{
var disposableReceiveState = DataReceiveStateObservable.Subscribe(s =>
{
_dataReceiveState = s;
},
obs.OnError,
() =>
{
Debug.WriteLine("DataReceiveObservable completed");
});
var disposableStreamListener =
Observable.While(
() => _dataReceiveState == DataReceiveState.IsListeningForHandShake ||
_dataReceiveState == DataReceiveState.IsListening,
Observable.FromAsync(() => ReadOneByteAtTheTimeAsync(tcpStream)))
.Select(b => Observable.FromAsync(() => ParseWebSocketAsync(b, ParserDelegate, parserHandler, subProtocols, obs)))
.Concat()
.Subscribe(
_ =>
{
if (_textDataParser.IsCloseReceived)
{
_observerDataReceiveMode.OnNext(DataReceiveState.Exiting);
_observerDataReceiveMode.OnCompleted();
}
},
obs.OnError,
obs.OnCompleted);
return(new CompositeDisposable(disposableReceiveState, disposableStreamListener));
});
return(listenerObservable);
}
internal IObservable <string> CreateObservableListener(
CancellationTokenSource innerCancellationTokenSource,
ITcpSocketClient tcpSocketClient,
IEnumerable <string> subProtocols = null)
{
var parserDelegate = new HttpParserDelegate();
var parserHandler = new HttpCombinedParser(parserDelegate);
TextDataParser.Reinitialize();
_innerCancellationTokenSource = innerCancellationTokenSource;
_tcpSocketClient = tcpSocketClient;
DataReceiveMode = DataReceiveMode.IsListeningForHandShake;
IsConnected = false;
_isHandshaking = true;
WatchHandshakeForTimeout(parserDelegate, _innerCancellationTokenSource);
var observable = Observable.Create <string>(
obs =>
{
var disp = _tcpSocketClient.ReadStream.ReadOneByteAtTheTimeObservable(innerCancellationTokenSource, isConnectionOpen: IsConnected || _isHandshaking)
.Subscribe(
b =>
{
if (TextDataParser.IsCloseRecieved)
{
return;
}
if (_hasHandshakeTimedout)
{
_subjectConnectionStatus.OnNext(ConnectionStatus.Aborted);
throw new WebsocketClientLiteException("Connection request to server timed out");
}
switch (DataReceiveMode)
{
case DataReceiveMode.IsListeningForHandShake:
_handshakeParser.Parse(b, parserDelegate, parserHandler);
HandshakeController(parserDelegate, subProtocols);
break;
case DataReceiveMode.IsListeningForTextData:
TextDataParser.Parse(_tcpSocketClient, b[0], ExcludeZeroApplicationDataInPong);
if (TextDataParser.IsCloseRecieved)
{
StopReceivingData();
}
if (TextDataParser.HasNewMessage)
{
obs.OnNext(TextDataParser.NewMessage);
}
break;
}
},
ex =>
{
StopReceivingData();
throw ex;
},
() =>
{
// ReSharper disable once ConvertClosureToMethodGroup
StopReceivingData();
}
);
HasReceivedCloseFromServer = false;
return(disp);
});
return(observable);
}