private void OnGivenHandshake(IAsyncResult asyncResult)
{
var state = (GivingHandshakeState)asyncResult.AsyncState;
var size = state.WebSocket.EndReceive(asyncResult);
if (size < 1)
{
if (Log.IsDebugEnabled)
{
Log.Debug("No server handshake data received from " + state.WebSocket.LocalEndPoint);
}
state.WebSocket.Dispose();
return;
}
var clientHandshake = state.Handshake;
var serverHandshake = new ServerHandshake();
serverHandshake.Parse(state.Buffer, 0, size);
var expected = serverHandshake.GenerateResponse(clientHandshake.Key1, clientHandshake.Key2, clientHandshake.Key3);
var location = string.Concat(uri.Scheme, Uri.SchemeDelimiter, clientHandshake.Host, clientHandshake.ResourceName);
if (serverHandshake.IsValid(location, clientHandshake.Origin, clientHandshake.Subprotocol, expected))
{
state.Callback();
}
else
{
state.WebSocket.Dispose();
}
}
private void ReturnHandshake(ServerHandshake serverHandshake, ClientHandshake clientHandshake, ReceiveHandshakeState handshakeState)
{
var webSocket = handshakeState.WebSocket;
var state = new ReturnHandshakeState {
WebSocket = webSocket, Callback = handshakeState.Callback, ClientHandshake = clientHandshake
};
var handshakeBuffer = serverHandshake.ToByteArray();
webSocket.BeginSend(handshakeBuffer, 0, handshakeBuffer.Length, OnHandshakeReturned, state);
}
private void OnReceivingHandshake(IAsyncResult asyncResult)
{
var state = (ReceiveHandshakeState)asyncResult.AsyncState;
var size = state.WebSocket.EndReceive(asyncResult);
if (size < 1)
{
if (Log.IsDebugEnabled)
{
Log.Debug("No client handshake data received from " + state.WebSocket.LocalEndPoint);
}
state.WebSocket.Dispose();
return;
}
var clientHandshake = new ClientHandshake();
clientHandshake.Parse(state.Buffer, 0, size);
if (clientHandshake.IsValid(host, origin))
{
var serverHandshake = new ServerHandshake(clientHandshake.Origin,
string.Concat(scheme, Uri.SchemeDelimiter, clientHandshake.Host, clientHandshake.ResourceName),
clientHandshake.Subprotocol,
clientHandshake.Key1, clientHandshake.Key2, clientHandshake.Key3);
ReturnHandshake(serverHandshake, clientHandshake, state);
}
else
{
if (Log.IsDebugEnabled)
{
Log.Debug("Invalid client handshake from " + state.WebSocket.LocalEndPoint);
}
state.WebSocket.Dispose();
}
}