static void Forward(TcpClient source)
{
source.Client.Blocking = true;
EndPoint sourceEndPoint = source.Client.RemoteEndPoint;
EndPoint targetEndPoint = null;
NetworkStream sourceStream = source.GetStream();
long source2Target = 0;
long target2Source = 0;
try
{
TcpClient target = GetTargetConnection();
targetEndPoint = target.Client.RemoteEndPoint;
NetworkStream targetStream = target.GetStream();
Log.LogVerbose(string.Format("Establishing tunnel <cyan>{0} <default><-> <yellow>{1}", sourceEndPoint, targetEndPoint));
#region Source2Target Task
Task source2TargetTask = Task.Factory.StartNew(() =>
{
try
{
while (source.Connected && target.Connected && 0 < sourceStream.CopyBlocksTo(targetStream, callback: (sender, e) => { source2Target += e.Part; }))
{
;
}
}
catch { }
});
#endregion
#region Target2Source Task
Task target2SourceTask = Task.Factory.StartNew(() =>
{
try { while (source.Connected && target.Connected && 0 < targetStream.CopyBlocksTo(sourceStream, callback: (sender, e) => { target2Source += e.Part; }))
{
;
}
}
catch { }
});
#endregion
Task.WaitAny(new[] { target2SourceTask, source2TargetTask });
source.Close();
target.Close();
}
catch (Exception ex)
{
Log.LogVerbose(StringExtensions.Format("Unclean tunnel exit at <cyan>{0} <default><-> <yellow>{1}", sourceEndPoint, targetEndPoint), ex);
}
{
LogLevel level = ShowStatistics ? LogLevel.Information : LogLevel.Verbose;
Log.Write(level, StringExtensions.Format("Tunnel <cyan>{0} <default><-> {1} <default>Source2Target: <yellow>{2} <default>Target2Source: <yellow>{3}",
sourceEndPoint, targetEndPoint, source2Target.FormatBinarySize(), target2Source.FormatBinarySize()));
}
{
LogLevel level = ShowConnects ? LogLevel.Information : LogLevel.Verbose;
Log.Write(level, string.Format("Disconnect from <cyan>{0}", sourceEndPoint));
}
}
