/// <summary>
/// 浏览器tcp转发
/// </summary>
/// <param name="client"></param>
private void TcpHandlerAsync(ConnectionContext browser)
{
Task.Run(async() =>
{
SocketConnect target = new SocketConnect();
try
{
await target.ConnectAsync(remoteAddress, remotePort);
ProcessTaget(browser, target);
while (true)
{
//浏览器普通接收
var result = await browser.Transport.Input.ReadAsync();
if (result.IsCompleted || result.IsCanceled)
{
break;
}
var buff = result.Buffer;
// 接收到浏览器数据
if (buff.Length == 3 && string.Join(",", buff.ToArray()) == "5,1,0")
{
//发5 0 回到浏览器
await browser.Transport.Output.WriteAsync(new byte[] { 5, 0 });
}
else
{
//var pack = Message.MakePack(new Message { Content = Crypto.EncryptAES(buff.ToArray()) });
var pack = Message.MakePack(new Message {
Content = buff.ToArray()
});
//发送数据到服务器
await target.TcpClient.Client.SendAsync(pack, SocketFlags.None);
//await target.Pipe.Output.WriteAsync(pack);
}
browser.Transport.Input.AdvanceTo(buff.GetPosition(buff.Length));
}
await browser.Transport.Input.CompleteAsync();
}
catch (Exception ex)
{
logger.LogError(ex.Message);
}
});
}
//处理目标服务器
private Task ProcessTaget(ConnectionContext browser, SocketConnect target)
{
return(Task.Run(async() =>
{
try
{
while (true)
{
var readResult = await target.PipeReader.ReadAsync();
if (!readResult.Buffer.IsEmpty)
{
SequencePosition position = readResult.Buffer.Start;
if (readResult.Buffer.TryGet(ref position, out var memory))
{
//发往浏览器
await browser.Transport.Output.WriteAsync(memory);
target.PipeReader.AdvanceTo(readResult.Buffer.GetPosition(memory.Length));
}
}
else
{
if (readResult.IsCanceled || readResult.IsCompleted)
{
break;
}
}
}
await target.PipeReader.CompleteAsync();
}
catch (Exception ex)
{
logger.LogError(ex.Message);
}
}));
}