public static byte[] FrameData(byte[] payload, FrameType frameType)
{
var memoryStream = new MemoryStream();
byte op = (byte)((byte)frameType + 128);
memoryStream.WriteByte(op);
if (payload.Length > UInt16.MaxValue)
{
memoryStream.WriteByte(127);
var lengthBytes = IntExtensions.ToBigEndianBytes <ulong>(payload.Length);
memoryStream.Write(lengthBytes, 0, lengthBytes.Length);
}
else if (payload.Length > 125)
{
memoryStream.WriteByte(126);
var lengthBytes = IntExtensions.ToBigEndianBytes <ushort>(payload.Length);
memoryStream.Write(lengthBytes, 0, lengthBytes.Length);
}
else
{
memoryStream.WriteByte((byte)payload.Length);
}
memoryStream.Write(payload, 0, payload.Length);
return(memoryStream.ToArray());
}
public static IHandler Create(WebSocketHttpRequest request, Action <string> onMessage, Action onClose, Action <byte[]> onBinary, Action <byte[]> onPing, Action <byte[]> onPong)
{
var readState = new ReadState();
return(new ComposableHandler
{
Handshake = sub => Hybi13Handler.BuildHandshake(request, sub),
TextFrame = s => Hybi13Handler.FrameData(Encoding.UTF8.GetBytes(s), FrameType.Text),
BinaryFrame = s => Hybi13Handler.FrameData(s, FrameType.Binary),
PingFrame = s => Hybi13Handler.FrameData(s, FrameType.Ping),
PongFrame = s => Hybi13Handler.FrameData(s, FrameType.Pong),
CloseFrame = i => Hybi13Handler.FrameData(IntExtensions.ToBigEndianBytes <ushort>(i), FrameType.Close),
ReceiveData = d => Hybi13Handler.ReceiveData(d, readState, (op, data) => Hybi13Handler.ProcessFrame(op, data, onMessage, onClose, onBinary, onPing, onPong))
});
}
