private void Handshake(string TransportName, WebSocketContext Context)
{
void OnError()
{
Context.WebSocket.Close(CloseStatusCode.Abnormal, Exceptions.BAD_REQUEST.Message);
}
try
{
if (EngineIOHttpManager.IsWebSocket(TransportName))
{
Handshake(Context.QueryString["sid"] ?? EngineIOSocketID.Generate(), new EngineIOWebSocket(Context));
}
else
{
OnError();
}
}
catch (Exception Exception)
{
EngineIOLogger.Error(this, Exception);
OnError();
}
}
private void OnOpen()
{
ReadyState = EngineIOReadyState.OPEN;
PriorWebsocketSuccess = Transport is EngineIOWebSocket;
Emit(Event.OPEN);
Flush();
if (ReadyState == EngineIOReadyState.OPEN && Option.Upgrade && Option.WebSocket && Transport is EngineIOPolling)
{
foreach (string Upgrade in Handshake.Upgrades)
{
if (EngineIOHttpManager.IsWebSocket(Upgrade))
{
Probe();
break;
}
}
}
}
private EngineIOException Verify(NameValueCollection QueryString, NameValueCollection Headers, EngineIOTransportType ExpectedTransportType)
{
EngineIOException Exception = Exceptions.UNKNOWN_TRANSPORT;
if (EngineIOHttpManager.GetTransport(QueryString).Equals(ExpectedTransportType.ToString()))
{
bool IsPolling = EngineIOHttpManager.IsPolling(QueryString) && Option.Polling;
bool IsWebSocket = EngineIOHttpManager.IsWebSocket(QueryString) && Option.WebSocket;
if (IsPolling || IsWebSocket)
{
if (EngineIOHttpManager.IsValidHeader(EngineIOHttpManager.GetOrigin(Headers)))
{
Exception = null;
}
else
{
Exception = Exceptions.BAD_REQUEST;
}
}
}
return(Exception);
}