private void Client_BinaryReceived(object sender, BinaryReceivedEventArgs e)
{
var args = new ServerReceivedBinaryEventArgs(sender as Connection, e);
BinaryReceived?.Invoke(this, args);
OnBinaryReceived(args);
}
private void HandleIncomingBinary(Frame frame)
{
binary.AddRange(frame.UnmaskedData);
if (frame.FIN)
{
BinaryReceived?.Invoke(this as T, binary.ToArray());
binary.Clear();
}
else
{
currentOpCode = OpCode.BinaryFrame;
}
}
private async void Read()
{
byte[] bytes = null; OpCode operation = default;
while (State == State.Open)
{
try
{
var frame = await GetFrameInfo();
if (frame.OpCode == OpCode.Ping)
{
Pong(frame);
}
else if (frame.OpCode == OpCode.ConnectionClose)
{
HandleCloseRequest(frame);
break;
}
else
{
if (frame.OpCode == OpCode.ContinuationFrame)
{
bytes = (bytes == null) ? frame.UnmaskedData : bytes.Concat(frame.UnmaskedData).ToArray();
}
else
{
bytes = frame.UnmaskedData;
operation = frame.OpCode;
}
if (!frame.FIN)
{
continue;
}
if (operation == OpCode.TextFrame)
{
string msg = Encoding.UTF8.GetString(bytes);
MessageReceived?.Invoke(this as T, msg);
}
else
{
BinaryReceived?.Invoke(this as T, (byte[])bytes.Clone());
}
bytes = null;
}
}
catch { Close(); }
}
}
private void HandleFrame(Frame frame)
{
if (frame.FIN)
{
switch (frame.OpCode)
{
case OpCode.TextFrame:
binary.AddRange(frame.UnmaskedData);
TextReceived?.Invoke(this, Encoding.UTF8.GetString(binary.ToArray()));
break;
case OpCode.BinaryFrame:
binary.AddRange(frame.UnmaskedData);
BinaryReceived?.Invoke(this, binary.ToArray());
break;
case OpCode.ConnectionClose:
HandleCloseRequest(frame);
break;
case OpCode.Ping:
Pong(frame);
break;
case OpCode.ContinuationFrame:
if (currentOpCode == OpCode.TextFrame)
{
TextReceived?.Invoke(this, Encoding.UTF8.GetString(binary.ToArray()));
}
else
{
BinaryReceived?.Invoke(this, binary.ToArray());
}
break;
default:
Close();
break;
}
binary.Clear();
}
else
{
binary.AddRange(frame.UnmaskedData);
currentOpCode = frame.OpCode;
}
}
private void HandleFrame(Frame frame)
{
if (frame.FIN)
{
switch (frame.OpCode)
{
case OpCode.TextFrame:
var ignore1 = Task.Run(() => TextReceived?.Invoke(this, new TextReceivedEventArgs(Encoding.UTF8.GetString(frame.UnmaskedData))));
break;
case OpCode.BinaryFrame:
var ignore2 = Task.Run(() => BinaryReceived?.Invoke(this, new BinaryReceivedEventArgs(frame.UnmaskedData)));
break;
case OpCode.ConnectionClose:
HandleCloseRequest(frame);
break;
case OpCode.Ping:
Pong(frame);
break;
case OpCode.ContinuationFrame:
binary.AddRange(frame.UnmaskedData);
if (currentOpCode == OpCode.TextFrame)
{
var ignore3 = Task.Run(() => TextReceived?.Invoke(this, new TextReceivedEventArgs(Encoding.UTF8.GetString(binary.ToArray()))));
}
else
{
var ignore4 = Task.Run(() => BinaryReceived?.Invoke(this, new BinaryReceivedEventArgs(binary.ToArray())));
}
break;
default:
Close();
break;
}
binary.Clear();
}
else
{
binary.AddRange(frame.UnmaskedData);
currentOpCode = frame.OpCode;
}
}
public async Task ReceiveAsync()
{
if (_cts != null)
{
return;
}
_cts = new CancellationTokenSource();
_ws = new ClientWebSocket();
await _ws.ConnectAsync(new Uri(_url), _cts.Token);
Opened?.Invoke(this, EventArgs.Empty);
var arr = new ArraySegment <byte>(_buf);
int count = 0;
MemoryStream ms = new MemoryStream();
while (true)
{
var result = await _ws.ReceiveAsync(arr, _cts.Token);
if (result.MessageType == WebSocketMessageType.Close)
{
break;
}
else if (result.MessageType == WebSocketMessageType.Text)
{
if (result.EndOfMessage)
{
string s;
if (count == 0)
{
s = Encoding.UTF8.GetString(_buf, 0, result.Count);
}
else
{
ms.Write(_buf, 0, result.Count);
var k = ms.ToArray();
s = Encoding.UTF8.GetString(k, 0, k.Length);
ms = new MemoryStream();
count = 0;
}
Received?.Invoke(this, s);
}
else
{
ms.Write(_buf, 0, result.Count);
count++;
}
}
else if (result.MessageType == WebSocketMessageType.Binary)
{
if (result.EndOfMessage)
{
byte[] s;
if (count == 0)
{
s = _buf.Take(result.Count).ToArray();// Encoding.UTF8.GetString(_buf, 0, result.Count);
}
else
{
ms.Write(_buf, 0, result.Count);
var k = ms.ToArray();
s = k;
ms = new MemoryStream();
count = 0;
}
BinaryReceived?.Invoke(this, s);
}
else
{
ms.Write(_buf, 0, result.Count);
count++;
}
}
}
_cts = null;
}
protected override void OnBinaryReceived(byte[] payload)
{
BinaryReceived?.Invoke(this, payload);
}
