private void BeginSendServerHandshake(ServerHandshake handshake, Socket socket)
{
var stringShake = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" +
"Upgrade: WebSocket\r\n" +
"Connection: Upgrade\r\n" +
"Sec-WebSocket-Origin: " + handshake.Origin + "\r\n" +
"Sec-WebSocket-Location: " + handshake.Location + "\r\n" +
"Sec-WebSocket-Accept: " + Encoding.ASCII.GetString(handshake.AnswerBytes) + "\r\n";
if (handshake.SubProtocol != null)
{
stringShake += "Sec-WebSocket-Protocol: " + handshake.SubProtocol + "\r\n";
}
stringShake += "\r\n";
// generate a byte array representation of the handshake including the answer to the challenge
byte[] byteResponse = Encoding.ASCII.GetBytes(stringShake);
int byteResponseLength = byteResponse.Length;
Array.Resize(ref byteResponse, byteResponseLength + handshake.AnswerBytes.Length);
Array.Copy(handshake.AnswerBytes, 0, byteResponse, byteResponseLength, handshake.AnswerBytes.Length);
socket.BeginSend(byteResponse, 0, byteResponse.Length, 0, EndSendServerHandshake, socket);
}
private ServerHandshake GenerateResponseHandshake()
{
var responseHandshake = new ServerHandshake();
responseHandshake.Location = "ws://" + ClientHandshake.Host + ClientHandshake.ResourcePath;
responseHandshake.Origin = ClientHandshake.Origin;
responseHandshake.SubProtocol = ClientHandshake.SubProtocol;
var challenge = new byte[8];
Array.Copy(ClientHandshake.ChallengeBytes.Array, ClientHandshake.ChallengeBytes.Offset, challenge, 0, 8);
byte[] bytes;
CalculateAnswerBytes(out bytes, ClientHandshake.Key1, ClientHandshake.Key2, ClientHandshake.ChallengeBytes, ClientHandshake.Version);
responseHandshake.AnswerBytes = bytes;
return(responseHandshake);
}
