/// <summary>
/// Shake hands with the connecting socket
/// </summary>
/// <param name="socket">The socket to send the handshake to</param>
/// <param name="callback">a callback function that is called when the send has completed</param>
public void Shake(Socket socket, Action <ClientHandshake> callback)
{
_onSuccess = callback;
try
{
var buffer = new byte[_bufferSize];
socket.AsyncReceive(buffer, (size) =>
{
if (size > 0)
{
var validShake = IsValidHandshake(buffer, size);
if (validShake)
{
// generate a response for the client
var serverShake = GenerateResponseHandshake();
// send the handshake to the client
BeginSendServerHandshake(serverShake, socket);
}
else
{
// the client shake isn't valid
Log.Debug("invalid handshake received from " + socket.LocalEndPoint);
socket.Close();
}
}
});
}
catch (Exception e)
{
Log.Error("Exception thrown from method Receive:\n" + e.Message);
}
}
public void ReceiveAsync(Action <string> callback, DataFrame frame = null)
{
var buffer = new byte[256];
if (frame == null)
{
frame = new DataFrame();
}
Socket.AsyncReceive(buffer, frame, (sizeOfReceivedData, df) =>
{
var dataframe = (DataFrame)df;
if (sizeOfReceivedData > 0)
{
dataframe.Append(buffer);
if (dataframe.IsComplete)
{
var data = dataframe.ToString();
callback(data);
}
else // end is not is this buffer
{
ReceiveAsync(callback, dataframe); // continue to read
}
}
});
}
public void Receive(DataFrame frame = null)
{
if (frame == null)
{
frame = new DataFrame();
}
var buffer = new byte[BufferSize];
if (Socket == null || !Socket.Connected)
{
WebSocket.Disconnected();
}
Socket.AsyncReceive(buffer, frame, (sizeOfReceivedData, df) =>
{
var dataframe = (DataFrame)df;
if (sizeOfReceivedData > 0)
{
dataframe.Append(buffer);
if (dataframe.IsComplete)
{
var data = dataframe.ToString();
var model = CreateModel(data);
var isValid = ModelIsValid(model);
// if the model was created it must be valid,
if (isValid && Factory != null || model == null && Factory == null)
{
if (model == null && Factory == null) // if the factory is null, use the raw string
{
model = (object)data;
}
WebSocket.Incoming(model);
}
Receive();
}
else // end is not is this buffer
{
Receive(dataframe); // continue to read
}
}
else // no data - the socket must be closed
{
WebSocket.Disconnected();
Socket.Close();
}
});
}
