private async void Listen()
{
using (Stream ns = Stream) {
WebSocketReader reader = new WebSocketReader();
OnHandshake?.Invoke(this, new HandshakeEventArgs(null, null));
while (Running && !ListenToken.IsCancellationRequested)
{
WebSocketFrame frame = await reader.Read(ns, null);
if (frame == null || frame.Opcode == WebSocketOpcode.ConnectionCloseFrame)
{
Remove(WebSocketDisconnection.Disconnect);
break;
}
switch (frame.Opcode)
{
case WebSocketOpcode.PingFrame:
if (frame.Data.Length <= 125)
{
await Writer.WritePong(frame);
OnPing?.Invoke(this, new PingEventArgs(frame.Data));
}
break;
case WebSocketOpcode.PongFrame:
OnPong?.Invoke(this, new PongEventArgs(frame.Data));
break;
case WebSocketOpcode.BinaryFrame:
if (frame.Data.Length == 4 && frame.Data[0] == 22 &&
frame.Data[1] == 23 && frame.Data[2] == 24 && frame.Data[3] == 25)
{
await OnPingReceived();
}
OnMessage?.Invoke(this, new MessageEventArgs(null, frame));
break;
case WebSocketOpcode.TextFrame:
OnMessage?.Invoke(this, new MessageEventArgs(null, frame));
break;
}
}
}
}
private async Task ListenClient(WebSocketUser user)
{
using (Stream ns = user.Stream) {
WebSocketReader reader = new WebSocketReader();
var res = await InterpretHeader(user, ns);
if (!(res.Item1))
{
RemoveClient(user, WebSocketDisconnection.NoHeader);
return;
}
Logger.DebugWrite("INFO", $"Socket successfully handshaked the update. UID: {user.UID}");
OnHandshake?.Invoke(this, new HandshakeEventArgs(user, res.Item2));
while (Running && !user.ListenToken.IsCancellationRequested)
{
WebSocketFrame frame = await reader.Read(ns, user);
if (frame == null || frame.Opcode == WebSocketOpcode.ConnectionCloseFrame)
{
RemoveClient(user, WebSocketDisconnection.Disconnect);
break;
}
switch (frame.Opcode)
{
case WebSocketOpcode.PingFrame:
if (frame.Data.Length <= 125)
{
await user.Writer.WritePong(frame);
OnPing?.Invoke(this, new PingEventArgs(frame.Data));
}
break;
case WebSocketOpcode.PongFrame:
OnPong?.Invoke(this, new PongEventArgs(frame.Data));
break;
case WebSocketOpcode.BinaryFrame:
user.Meta.LastTime.Binary = DateTime.UtcNow;
if (RttEnabled && frame.Data.Length == 4 && frame.Data[0] == 26 &&
frame.Data[1] == 27 && frame.Data[2] == 28 && frame.Data[3] == 29)
{
OnPongReceived(user);
}
OnMessage?.Invoke(this, new MessageEventArgs(user, frame));
break;
case WebSocketOpcode.TextFrame:
user.Meta.LastTime.Text = DateTime.UtcNow;
OnMessage?.Invoke(this, new MessageEventArgs(user, frame));
break;
}
}
}
}
