private static void TcpServer_SessionClosed(TcpAppSession session, CSuperSocket.SocketBase.CloseReason value)
{
try
{
CloseLocalClient(session);
HandleLog.WriteLine($"客户端【{session.PackJson.UserId},{session.RemoteEndPoint}】已下线：{value}");
}
catch (Exception ex)
{
HandleLog.WriteLine($"关闭连接【{session.LocalEndPoint}】发生异常：{ex}");
}
}
private static void TcpServer_NewSessionConnected(TcpAppSession session)
{
try
{
//转发请求
var natSession = NATServer.GetSessions(c => c.MapList?.Any(m => m.remote_port == session.LocalEndPoint.Port) ?? false).FirstOrDefault();
if (natSession == null)
{
session?.Close();
HandleLog.WriteLine($"请求：{session.LocalEndPoint}失败，Nat客户端连接不在线！");
return;
}
var map = natSession.MapList?.Find(c => c.remote_port == session.LocalEndPoint.Port);
if (map == null)
{
session?.Close();
HandleLog.WriteLine($"请求：{session.LocalEndPoint}失败，映射{session.LocalEndPoint}不存在！");
return;
}
session.Map = map;
var pack = new PackJson()
{
Host = map?.remote_endpoint,
Local = map?.local_endpoint,
UserId = session.UserId,
Method = "TCP"
};
session.PackJson = pack;
var json = JsonHelper.Instance.Serialize(pack);
var jsonBytes = Encoding.UTF8.GetBytes(json);
//03 01 数据长度(4) 正文数据(n) ---tcp连接注册包
var sendBytes = new List <byte>()
{
0x3, 0x1
};
sendBytes.AddRange(BitConverter.GetBytes(jsonBytes.Length).Reverse());
sendBytes.AddRange(jsonBytes);
natSession.Send(sendBytes.ToArray(), 0, sendBytes.Count);
session.NatSession = natSession;
HandleLog.WriteLine($"客户端【{session.PackJson.UserId},{session.RemoteEndPoint}】已连接【{session.LocalEndPoint}】");
}
catch (Exception ex)
{
HandleLog.WriteLine($"连接【{session.PackJson.UserId},{session.LocalEndPoint}】发生异常：{ex}");
}
}
public static void CloseLocalClient(TcpAppSession session)
{
var pack = new PackJson()
{
Host = session.PackJson.Host,
UserId = session.PackJson.UserId
};
var json = JsonHelper.Instance.Serialize(pack);
var jsonBytes = Encoding.UTF8.GetBytes(json);
//03 03 数据长度(4) 正文数据(n) ---tcp连接关闭包
var sendBytes = new List <byte>()
{
0x3, 0x3
};
sendBytes.AddRange(BitConverter.GetBytes(jsonBytes.Length).Reverse());
sendBytes.AddRange(jsonBytes);
//转发给客户端
session.NatSession?.Send(sendBytes.ToArray());
}
private static void TcpServer_NewRequestReceived(TcpAppSession session, TcpRequestInfo requestInfo)
{
Task.Run(() =>
{
try
{
while (session.NatSession == null)
{
Thread.Sleep(50);
}
//先gzip压缩 再转为16进制字符串
var body = DataHelper.Compress(requestInfo.Data);
var pack = new PackJson()
{
Host = session.Map?.remote_endpoint,
Local = session.Map?.local_endpoint,
UserId = session.UserId,
Method = "TCP",
Content = body
};
var json = JsonHelper.Instance.Serialize(pack);
var jsonBytes = Encoding.UTF8.GetBytes(json);
//03 02 数据长度(4) 正文数据(n) ---tcp响应包
var sendBytes = new List <byte>()
{
0x3, 0x2
};
sendBytes.AddRange(BitConverter.GetBytes(jsonBytes.Length).Reverse());
sendBytes.AddRange(jsonBytes);
session.NatSession.Send(sendBytes.ToArray(), 0, sendBytes.Count);
HandleLog.WriteLine($"<---- {session.PackJson.UserId} 收到报文{requestInfo.Data.Length}字节");
}
catch (Exception ex)
{
HandleLog.WriteLine($"【{session.LocalEndPoint}】请求参数：{Encoding.UTF8.GetString(requestInfo.Data)}，处理发生异常：{ex}");
}
});
}