private void SendHandshake(WsContext wsContext, NetworkStream stream, string data)
{
var rows = data.Split(Environment.NewLine);
rows = rows.Where(x => !string.IsNullOrEmpty(x)).ToArray();
foreach (var row in rows)
{
var pair = row.Split(":");
if (pair.Length > 1)
{
wsContext.Headers.Add(pair[0].Trim(), pair[1].Trim());
}
else
{
wsContext.Headers.Add("Methode", pair[0].Trim());
}
}
Byte[] response = Encoding.UTF8.GetBytes("HTTP/1.1 101 Switching Protocols" + Environment.NewLine
+ "Connection: Upgrade" + Environment.NewLine
+ "Upgrade: websocket" + Environment.NewLine
+ "Sec-WebSocket-Accept: " + Convert.ToBase64String(
SHA1.Create().ComputeHash(
Encoding.UTF8.GetBytes(
new Regex("Sec-WebSocket-Key: (.*)").Match(data).Groups[1].Value.Trim() + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
)
)
) + Environment.NewLine
+ Environment.NewLine);
stream.Write(response, 0, response.Length);
_wsController.OnConnect(wsContext);
}
private void ParseData(WsContext wsContext, out NetworkStream stream, out byte[] formated, out string _data)
{
stream = wsContext.TcpClient.GetStream();
byte[] buffer = new byte[1024];
int byte_count = stream.Read(buffer, 0, buffer.Length);
formated = new Byte[byte_count];
Array.Copy(buffer, formated, byte_count); //handle the null characteres in the byte array
_data = Encoding.ASCII.GetString(formated);
}
private void Handle_clients(object wsContext)
{
WsContext _wsContext = (WsContext)wsContext;
while (true)
{
ParseData(_wsContext, out NetworkStream stream, out byte[] formated, out string data);
_wsContext.NetworkStream = stream;
if (IsHeader(data))
{
SendHandshake(_wsContext, stream, data);
}
else
{
var data2 = GetDecodedData(formated, formated.Length);
_wsController.OnMessage(_wsContext, new WsData(formated, data, data2));
}
}
}
public void Start()
{
TcpListener ServerSocket = new TcpListener(IPAddress.Any, 80);
ServerSocket.Start();
while (true)
{
TcpClient client = ServerSocket.AcceptTcpClient();
var gui = Guid.NewGuid().ToString();
WsContext wsContext = new WsContext(this, client, gui);
Clients.Add(wsContext);
//Console.WriteLine("Someone connected!!");
Thread t = new Thread(Handle_clients);
t.Start(wsContext);
}
}
