public override async Task <int> ReadAsync(ArraySegment <byte> buffer, CancellationToken cancellationToken = new CancellationToken())
{
int len = await WrappedSocket.ReadAsync(buffer, cancellationToken);
_data.BytesRead += len;
return(len);
}
private void Connect()
{
try
{
var ipAddress = Global.OSSupportsLocalIPv6 ? IPAddress.IPv6Loopback : IPAddress.Loopback;
var remoteEp = new IPEndPoint(ipAddress, _targetPort);
_remote = new WrappedSocket();
// Connect to the remote endpoint.
_remote.BeginConnect(remoteEp, ConnectCallback, null);
}
catch (Exception e)
{
Logging.LogUsefulException(e);
Close();
}
}
private async Task ReadBytesAsync(ArraySegment <byte> result, CancellationToken cancellationToken = default(CancellationToken))
{
int count = result.Count;
do
{
int num = await WrappedSocket.ReadAsync(result, cancellationToken).ConfigureAwait(false);
if (num != 0)
{
count -= num;
}
else
{
throw new EndOfStreamException("Unexpected end of stream while trying to read crypto packet!");
}
} while (count > 0);
}
public void Start(byte[] firstPacket, int length, Socket socket, int targetPort)
{
_firstPacket = firstPacket;
_firstPacketLength = length;
_local = socket;
try
{
EndPoint remoteEP = SocketUtil.GetEndPoint("127.0.0.1", targetPort);
// 连接到远程端点
_remote = new WrappedSocket();
_remote.BeginConnect(remoteEP, ConnectCallback, null);
}
catch (Exception e)
{
Logging.LogUsefulException(e);
Close();
}
}
public void Start(byte[] firstPacket, int length, Socket socket, int targetPort)
{
_firstPacket = firstPacket;
_firstPacketLength = length;
_local = socket;
try
{
// Local Port Forward use IP as is
EndPoint remoteEP = SocketUtil.GetEndPoint(_local.AddressFamily == AddressFamily.InterNetworkV6 ? "[::1]" : "127.0.0.1", targetPort);
// Connect to the remote endpoint.
_remote = new WrappedSocket();
_remote.BeginConnect(remoteEP, ConnectCallback, null);
}
catch (Exception e)
{
logger.LogUsefulException(e);
Close();
}
}
public override Task WriteAsync(ArraySegment <byte> buffer, CancellationToken cancellationToken = new CancellationToken())
{
var buf = ArrayPool <byte> .Shared.Rent(buffer.Count + 20);
var ctext = new ArraySegment <byte>(buf, 20, buffer.Count);
var tag = new ArraySegment <byte>(buf, 4, 16);
BitConverter.TryWriteBytes(new ArraySegment <byte>(buf, 0, 4), buffer.Count);
lock (_writeNonce)
{
_aes.Encrypt(_writeNonce, buffer, ctext, tag);
IncrementNonce(_writeNonce);
}
async Task Send()
{
await WrappedSocket.WriteAsync(new ArraySegment <byte>(buf, 0, buffer.Count + 20), cancellationToken);
ArrayPool <byte> .Shared.Return(buf);
}
return(Send());
}
public override Task WriteAsync(ArraySegment <byte> buffer, CancellationToken cancellationToken = new CancellationToken())
{
_data.BytesWritten += buffer.Count;
return(WrappedSocket.WriteAsync(buffer, cancellationToken));
}
public override Task CloseAsync()
{
return(WrappedSocket.CloseAsync());
}
public override Task CloseAsync()
{
Console.WriteLine("Socket Closed");
return(WrappedSocket.CloseAsync());
}
public HttpHandler(ShadowsocksController controller, Configuration config, TCPRelay tcprelay, Socket socket) : base(controller, config, tcprelay, socket)
{
_localSocket = new WrappedSocket(socket);
}