private void HandleControlFrame(WebSocketFrame frame)
{
if (frame.Header.OpCode == WebSocketOpcodes.ConnectionCloseFrame)
{
try
{
SendMessage(WebSocketOpcodes.ConnectionCloseFrame, frame.Content);
}
catch (IOException)
{
//todo: use more general approach for exception handling
}
isClosed = true;
}
if (frame.Header.OpCode == WebSocketOpcodes.PingFrame)
{
//todo: send pong
}
if (frame.Header.OpCode == WebSocketOpcodes.PongFrame)
{
//todo: check pong
}
}
private WebSocketFrame ReadFrame()
{
WebSocketFrameHeader frameHeader = ReadFrameHeader();
if (frameHeader.PayloadLength > int.MaxValue)
{
throw new HcduServerException("Long messages are not supported.");
}
if (frameHeader.Mask == null)
{
throw new HcduServerException("Client messages should be masked.");
}
byte[] content = HttpUtils.ReadBlock(stream, (int) frameHeader.PayloadLength);
if (frameHeader.Mask != null)
{
for (int i = 0; i < content.Length; i++)
{
content[i] = (byte) (content[i] ^ frameHeader.Mask[i%4]);
}
}
WebSocketFrame frame = new WebSocketFrame();
frame.Header = frameHeader;
frame.Content = content;
return frame;
}
