public static bool Accept(Stream stream)
{
string received = received = stream.Receive();
//Check if client requests handshake
if (Regex.IsMatch(received, "^GET"))
{
HandshakeRequest hr = HandshakeRequest.Parse(received);
string acceptString = WebSocketsUtil.ComputeAcceptString(hr.SecWebSocketKey);
try
{
stream.Send(new HandshakeResponse(acceptString).Serialize());
return(true);
}
catch (Exception)
{
throw;
}
}
else
{
return(false);
}
}
//Receive data from client's stream
private void BeginReceive(IAsyncResult ar)
{
WebSocketsClient wsclient = (WebSocketsClient)ar.AsyncState;
DataFrame frame = wsclient.EndReceive(ar);
if (frame == null)
{
DisconnectClient(wsclient);
return;
}
try
{
switch (frame.OpCode)
{
case OpCode.Text:
try
{
string payload = Encoding.UTF8.GetString(WebSocketsUtil.DecodePayload(frame));
OnMessage?.Invoke(this, new WebSocketsMessageEventArgs(wsclient, payload));
}
catch (Exception e)
{
OnError?.Invoke(this, new WebSocketsErrorEventArgs(e));
}
break;
case OpCode.Binary:
break;
case OpCode.Continue:
break;
case OpCode.Ping:
break;
case OpCode.Pong:
break;
case OpCode.ConnectionClose:
DisconnectClient(wsclient);
break;
default:
break;
}
}
catch (Exception) { }
wsclient.BeginReceive(BeginReceive, wsclient);
}