void HandleDisconnect(Session session, DisconnectPacket p)
{
if (session.State == SessionState.Disconnected)
{
log.Info($"already disconnected: id={session.ID}");
return;
}
// 연결 종료는 소켓이 끊어질떄도 있고
// 유저가 직접 종료시키는 경우도 있다
// disconnect를 여러번 호출해도 꺠지지 않도록 하자
// 연결 끊은것을 연결 종료 패킷처럼 다루면
// 상위 레이어에서의 처리가 간단해진다
if (session.WorldID != null)
{
var leave = new WorldLeavePacket();
var codec = new PacketCodec();
var bytes = codec.Encode(leave);
var pair = new ReceivedPacket <WorldLeavePacket>(session, bytes);
HandleWorldLeave(session, pair);
}
log.Info($"disconnect: id={session.ID}");
var disconnect = new DisconnectPacket();
session.SendLazy(disconnect);
// 연결 끊어도 된다는 표시 해두기. 언제 끊어도 상관 없어야한다
NetworkStack.Session.CloseSessionActive(session);
}
/// <summary>
/// Adds the packet.
/// </summary>
/// <param name="packet">The packet.</param>
/// <returns>true; if the message is completed, otherwise false</returns>
public bool AddPacket(Packet packet)
{
ReceivedPacket p = new ReceivedPacket(packet, BlockCount);
foreach (var smaller in SelectSubsets(p.Blocks.Count, newLeaves, p.Blocks))
if (smaller.Blocks.IsProperSubsetOf(p.Blocks))
p.Xor(smaller);
if (p.Blocks.Count == 1)
{
newLeaves.Clear();
newLeaves.Enqueue(p);
while (newLeaves.Count > 0)
{
var next = newLeaves.Dequeue();
if (next.Blocks.Count == 1)
SubtractNewLeaf(next, newLeaves);
}
}
AddToList(p);
return IsComplete;
}
public void AuthenicateUserAsync(FastFoodUser user, Action <bool> completed)
{
this.SendPacket(new AuthenicateUserOutgoingPacket(user), (c) =>
{
if (c)
{
ReceivedPacket delegate_ = null;
delegate_ = delegate(IncomingPacket packet)
{
AuthenicateUserResponseIncomingPacket auth = packet as AuthenicateUserResponseIncomingPacket;
if (auth?.Result ?? false)
{
user.SetSessionToken(auth.SessionToken);
completed?.Invoke(true);
}
else
{
completed?.Invoke(false);
}
this.UnregisterPacketListenerUnsafe(delegate_);
};
this.RegisterPacketListenerUnsafe(delegate_);
}
else
{
completed?.Invoke(false);
}
});
}
public AnvizDevice(TcpClient socket)
{
DeviceStream = new AnvizStream(socket);
DeviceStream.ReceivedPacket += (s, e) =>
{
switch (e.ResponseCode)
{
case 0x7F:
DevicePing?.Invoke(this, null);
break;
case 0xDF:
ReceivedRecord?.Invoke(this, new Record(e.DATA, 0));
break;
default:
ReceivedPacket?.Invoke(this, e);
break;
}
};
DeviceStream.DeviceError += (s, e) =>
{
DeviceError?.Invoke(this, e);
};
}
private void OnReceiveSecondary(IAsyncResult ar)
{
int size = 0;
try
{
size = secondarySocket.EndReceive(ar);
}
catch (ObjectDisposedException)
{
// Stop receiving
return;
}
var newPacket = PCapPacket.CreateFromBytes(secondaryByteData, size);
newPacket.PacketNumber = packetNumber++;
var diff = DateTime.UtcNow - start;
newPacket.TimeStampSeconds = (uint)diff.TotalSeconds;
newPacket.TimeStampMicroseconds = (uint)((diff.TotalSeconds - (uint)diff.TotalSeconds) * 1000000);
ReceivedPacket?.Invoke(this, newPacket);
// Receive again
try
{
secondarySocket.BeginReceive(secondaryByteData, 0, secondaryByteData.Length, SocketFlags.None, new AsyncCallback(OnReceiveSecondary), null);
}
catch (ObjectDisposedException)
{
// Stop receiving
return;
}
}
private void ReceivingLoop()
{
EndPoint Endp = null;
while (!Disconnected)
{
mData = new byte[1020];
Debug.Log("Dang doi!");
int _byteCount = mSocket.ReceiveFrom(mData, ref Endp);
if (_byteCount > 0)
{
InputMemoryBitStream input = new InputMemoryBitStream(mData, _byteCount * 8);
System.Random rand = new System.Random();
int nextInt = rand.Next(0, 100);
// Mô phỏng mất gói tin
if (nextInt >= mSimulatedDropPacket)
{
// Mô phỏng độ trễ
float receivedTime = CurrentTime + mSimulatedLatency;
ReceivedPacket packet = new ReceivedPacket(ref input, Endp, receivedTime);
// tránh tranh chấp dữ liệu
lock (mPacketQueue)
{
mPacketQueue.Enqueue(packet);
}
}
}
}
Debug.Log("Disconnected!");
}
private async void ReceiverThreadFunc()
{
while (DeviceSocket.Connected && !CancellationTokenSource.IsCancellationRequested)
{
Response response = null;
try
{
response = await Response.FromStream(DeviceStream, CancellationTokenSource.Token);
}
catch (Exception ex)
{
DeviceError?.Invoke(this, ex);
}
if (response == null)
{
DeviceSocket.Close();
taskEmitter.TrySetResult(null);
break;
}
if (response.ResponseCode == 0x7F)
{
await new PongCommand(response.DeviceID).Send(DeviceStream);
ReceivedPacket?.Invoke(this, response);
}
else if (response.ResponseCode == ResponseCode)
{
ResponseCode = 0;
taskEmitter.TrySetResult(response);
}
else
{
ReceivedPacket?.Invoke(this, response);
}
}
}
private void ReceiveFromCallback(IAsyncResult ar)
{
try
{
EndPoint endp = (EndPoint)(new IPEndPoint(IPAddress.Any, 0));
int _byteCount = mSocket.EndReceiveFrom(ar, ref endp);
if (_byteCount > 0 && endp != null)
{
InputMemoryBitStream input = new InputMemoryBitStream(mData, _byteCount * 8);
System.Random rand = new System.Random();
int nextInt = rand.Next(0, 100);
if (nextInt >= mSimulatedDropPacket)
{
// Mô phỏng độ trễ
float receivedTime = CurrentTime + mSimulatedLatency;
ReceivedPacket packet = new ReceivedPacket(ref input, endp, receivedTime);
// tránh tranh chấp dữ liệu
lock (mPacketQueue)
{
mPacketQueue.Enqueue(packet);
}
}
}
StartReceivingPacket_nonblocking();
}
catch (ObjectDisposedException ex)
{
Debug.Log("end receive");
return;
}
}
private async void Listen()
{
while (await _inStream.MoveNext())
{
var packet = _inStream.Current;
// Invoke the event on the main thread
UnityMainThreadDispatcher.Instance()
.Enqueue(() =>
{
switch (packet.TypeCase)
{
case Packet.TypeOneofCase.Authentication:
_token = packet.Authentication.ClientToken;
// Record.Log($"Received auth {_token}");
break;
case Packet.TypeOneofCase.CreatePlayer:
Record.Log($"Received create player {packet.CreatePlayer}");
break;
}
// Record.Log($"Received {packet}");
ReceivedPacket?.Invoke(packet);
});
}
}
protected void OnReceivedPacket(T packet)
{
if (ReceivedPacket != null)
{
PacketEventArgs <T> packetEventArgs = new PacketEventArgs <T>(packet);
ReceivedPacket.Invoke(this, packetEventArgs);
}
}
public override bool Receive(ref ReceivedPacket packet)
{
if (Recvs.Count > 0)
{
packet = Recvs[0];
Recvs.RemoveAt(0);
return(true);
}
return(false);
}
void HandleWorldLeave(Session session, ReceivedPacket <WorldLeavePacket> received)
{
if (session.UserID < 0)
{
return;
}
var p = received.Packet;
var worlds = InstanceWorldManager.Instance;
var world = worlds.Get(session.WorldID);
world.EnqueueRecv(session, received.Data);
}
void EnqueueWorldPacket <TPacket>(ReceivedPacket <TPacket> packet)
where TPacket : IPacket, new()
{
if (packet.Session.UserID < 0)
{
return;
}
var worlds = InstanceWorldManager.Instance;
var world = worlds.Get(packet.Session.WorldID);
world.EnqueueRecv(packet.Session, packet.Data);
}
public static IReadOnlyList <ICommand> ParseToCommands(ProtocolVersion version, IEnumerable <byte[]> payloads)
{
var result = new List <ICommand>();
foreach (byte[] payload in payloads)
{
foreach (ParsedCommandSpec rawCmd in ReceivedPacket.ParseCommands(payload))
{
result.AddIfNotNull(CommandParser.Parse(version, rawCmd));
}
}
return(result);
}
public static ReceivedPacket WaitOnReceive(SockBase sock)
{
var receivedPacket = new ReceivedPacket();
for (int i = 0; i < 1000; ++i)
{
if (sock.Receive(ref receivedPacket))
{
return(receivedPacket);
}
Thread.Sleep(1);
}
return(receivedPacket);
}
public void SecondLevelParsing()
{
//SP900018[MECM(95,211,185,189,1,4,9,0,0,64,0,3,14,169,244,125,230,174,0,1,116,236,190,125,218,223,0,1,255,175,160,43,2,28,0,41,2,43,138,2,39,38,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
Parser.ReceivedPacket packet = new ReceivedPacket
{
Data = "95,211,185,189,1,4,9,0,0,64,0,3,14,169,244,125,230,174,0,1,116,236,190,125,218,223,0,1,255,175,160,43,2,28,0,41,2,43,138,2,39,38,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0",
ProtocolHeader = "MECM",
ReceivedOn = DateTime.UtcNow,
TerminalId = "SP111111"
};
var pkt = ParsingManager.SecondLevelParser(packet);
var str = JsonConvert.SerializeObject(pkt, Formatting.Indented);
}
public AnvizDevice(TcpClient socket)
{
DeviceStream = new AnvizStream(socket);
DeviceStream.ReceivedPacket += (s, e) =>
{
if (e.ResponseCode == 0x7F)
{
DevicePing?.Invoke(this, null);
}
else
{
ReceivedPacket?.Invoke(this, e);
}
};
}
private void SendToListener(ReceivedPacket receivedPacket)
{
try
{
if (Context != null)
{
Context.TransferText(receivedPacket.ToString());
}
ParsingManager.SecondLevelParser(receivedPacket);
}
catch (Exception ex)
{
LoggingManager.Log(ex);
}
}
private static List <List <ParsedCommandSpec> > ParseCommands(string filename)
{
var res = new List <List <ParsedCommandSpec> >();
using (var reader = new StreamReader(filename))
{
string line;
while ((line = reader.ReadLine()) != null)
{
var commands = ReceivedPacket.ParseCommands(line.HexToByteArray());
res.Add(commands.ToList());
}
}
return(res);
}
public bool Handle(Client client, string packet)
{
if (_queuePackets)
{
var receivedPacket = new ReceivedPacket
{
Client = client,
Packet = packet
};
_packets.Enqueue(receivedPacket);
}
else
{
return(HandlePacket(client, packet));
}
return(true);
}
private void ConnectAsyncResult(IAsyncResult ar)
{
Action <ConnectionResult> completed = (Action <ConnectionResult>)ar.AsyncState;
try
{
this.Socket.EndConnect(ar);
this.SendPacket(new RequestServerVersionOutgoingPacket(), (c) =>
{
if (c)
{
ReceivedPacket delegate_ = null;
delegate_ = delegate(IncomingPacket packet)
{
ServerVersionIncomingPacket serverVersion = packet as ServerVersionIncomingPacket;
if (serverVersion?.MagicMatches ?? false)
{
completed?.Invoke(ConnectionResult.Connected);
}
else
{
completed?.Invoke(ConnectionResult.NotAPIServer);
}
this.UnregisterPacketListenerUnsafe(delegate_);
};
this.RegisterPacketListenerUnsafe(delegate_);
}
else
{
completed?.Invoke(ConnectionResult.FailedToVerify);
}
});
this.StartListening();
}
catch
{
completed?.Invoke(ConnectionResult.ConnectionFailed);
}
}
public static Dictionary <string, ICGRC> GetConfiguration(ReceivedPacket packet)
{
Dictionary <string, ICGRC> list = new Dictionary <string, ICGRC>();
GTGeneralSettings cgrc00 = new GTGeneralSettings(packet.TerminalId);
GTSimAndServerSettings cgrc01 = new GTSimAndServerSettings(packet.TerminalId);
GTPollingAndGprsSettings cgrc02 = new GTPollingAndGprsSettings(packet.TerminalId);
list.Add(nameof(GTGeneralSettings), cgrc00);
list.Add(nameof(GTSimAndServerSettings), cgrc01);
list.Add(nameof(GTPollingAndGprsSettings), cgrc02);
//string raw = "SP333444<CGRC(ID(00,17/01/2021,07:51:07)N(+923333451191,+923468220229,+923333404763,,,,,,,,SR117R00BL01R00,13-Jan-16,16:27:21,+923,internet,,,+923,internet,,,333444,+923333451191,67.23.248.114,30004,SPMX00DT,SPMX01DT,,,,,,,1,15,2,4,30,9600,15,2)L(1000101101000000000001000000000000))\r>";
string[] strArray = SplitPacket(packet.Data);
cgrc00.Parse(strArray);
cgrc01.Parse(strArray);
cgrc02.Parse(strArray);
return(list);
}
private bool ParseEnhancedBlock(ProtocolVersion version, EnhancedPacketBlock block)
{
byte[] data = block.Data;
// Perform some basic checks, to ensure data looks like it could be ATEM
if (data[23] != 17)
{
throw new ArgumentOutOfRangeException("Found packet that appears to not be UDP");
}
if ((data[36] << 8) + data[37] != 9910 && (data[34] << 8) + data[35] != 9910)
{
throw new ArgumentOutOfRangeException("Found packet that has wrong UDP port");
}
data = data.Skip(42).ToArray();
var packet = new ReceivedPacket(data);
if (!packet.CommandCode.HasFlag(ReceivedPacket.CommandCodeFlags.AckRequest))
{
return(false);
}
bool failed = false;
foreach (ParsedCommandSpec cmd in packet.Commands)
{
try
{
// Try and parse, just to ensure it was successful
CommandParser.ParseUnsafe(version, cmd);
}
catch (Exception e)
{
output.WriteLine(e.ToString());
failed = true;
}
}
// TODO - parse any macros that were downloaded
return(failed);
}
private void ProcessQueuedPackets()
{
lock (mPacketQueue)
{
while (mPacketQueue.Count != 0)
{
ReceivedPacket packet = mPacketQueue.Peek();
if (Time.time > packet.GetReceivedTime())
{
InputMemoryBitStream input = packet.GetInputMemoryStream();
ProcessPacket(ref input, packet.GetFromAddressEndpoint());
mPacketQueue.Dequeue();
}
else
{
break;
}
}
}
}
private void HandlePacket(ReceivedPacket packet)
{
if (this.InvokeRequired)
{
this.Invoke(new MethodInvoker(() => HandlePacket(packet)));
return;
}
string outputFilename = OutputFileTextBox.Text;
switch (packet.command)
{
case 0x00:
LogToFile(outputFilename, "Packet type 0: " + packet.payload[0].ToString() + " " + packet.payload[1].ToString());
break;
case 0x10:
// Parse read data packet
break;
}
}
/// <summary>
/// Processes the packet stream.
/// </summary>
/// <returns>Task.</returns>
private async Task ProcessPacketStream()
{
try
{
while (IsConnected && (OutgoingPackets.Count != 0 || TcpClient.Available != 0))
{
while (IsConnected && TcpClient.Available != 0)
{
ReceivedPacket?.Invoke(this, new PacketEventArgs {
Packet = await Packet.ReadFromStreamAsync(TcpClientStream)
});
IncomingPacketReceieved = true;
}
if (!IsConnected || !CanSendPacket || OutgoingPackets.Count == 0)
{
continue;
}
await OutgoingPackets.Dequeue().WriteToStreamAsync(TcpClientStream);
OutgoingPacketCooldown.Restart();
IncomingPacketReceieved = false;
//// We've successfully sent or recieved data so the keepalive can be pushed back.
Keepalive.Reset();
}
}
catch
{
// Lost connection with the server
// No handling is necessary here as the TCPClient will set Connected to false.
ServerConnectionDropped?.Invoke(this, new ServerConnectionEventArgs {
Message = "Connection to the server has been lost.", Status = ServerConnectionStatusEnum.Disconnected, Timestamp = DateTime.Now
});
}
}
/// <summary>
/// Цикл чтения пакетов из соединения
/// </summary>
/// <returns></returns>
public async Task ReadAsync()
{
try
{
while (true)
{
short bodyLength = await ReadBodyLengthAsync();
byte[] body = new byte[bodyLength];
await ReadBodyAsync(body, bodyLength);
var packet = new Packet(1, body);
ReceivedPacket?.Invoke(packet);
}
}
catch (Exception ex)
{
logger.Error($"Ошибка при чтении пакета: {ex.Message}");
//TODO: Тут надо новерно закрывать соединение
}
}
public void AuthenicatePrivateAPIAsync(string key, string signature, Action <bool> completed)
{
this.SendPacket(new RequestPrivateAPIAccessOutgoingPacket(key, signature), (c) =>
{
if (c)
{
ReceivedPacket delegate_ = null;
delegate_ = delegate(IncomingPacket packet)
{
completed?.Invoke((packet as PrivateAPIAuthenicationResponseIncomingPacket)?.Result ?? false);
this.UnregisterPacketListenerUnsafe(delegate_);
};
this.RegisterPacketListenerUnsafe(delegate_);
}
else
{
completed?.Invoke(false);
}
});
}
private async void ReceiverThreadFunc()
{
while (!CancellationTokenSource.IsCancellationRequested)
{
var response = await Response.FromStream(DeviceStream, CancellationTokenSource.Token);
if (response == null)
{
DeviceSocket.Close();
taskEmitter.TrySetResult(null);
break;
}
else if (response.ResponseCode == ResponseCode)
{
ResponseCode = 0;
taskEmitter.TrySetResult(response);
}
else
{
ReceivedPacket?.Invoke(this, response);
}
}
}
private byte[] CompileMessage(ReceivedPacket origPacket, byte[] payload)
{
byte opcode = (byte)origPacket.CommandCode;
byte len1 = (byte)((ReceivedPacket.HeaderLength + payload.Length) / 256 | opcode << 3); // opcode 0x08 + length
byte len2 = (byte)((ReceivedPacket.HeaderLength + payload.Length) % 256);
byte[] buffer =
{
len1, len2, // Opcode & Length
(byte)(origPacket.SessionId / 256), (byte)(origPacket.SessionId % 256), // session id
0x00, 0x00, // ACKed Pkt Id
0x00, 0x00, // Unknown
0x00, 0x00, // unknown2
(byte)(origPacket.PacketId / 256), (byte)(origPacket.PacketId % 256), // pkt id
};
// If no payload, dont append it
if (payload.Length == 0)
{
return(buffer);
}
return(buffer.Concat(payload).ToArray());
}
private void StartLogWriter()
{
var thread = new Thread(() =>
{
while (true)
{
if (!_logQueue.TryDequeue(out LogItem item))
{
Thread.Sleep(5);
continue;
}
var packet = new ReceivedPacket(item.Payload);
if (packet.CommandCode.HasFlag(ReceivedPacket.CommandCodeFlags.AckRequest) &&
!packet.CommandCode.HasFlag(ReceivedPacket.CommandCodeFlags.Handshake))
{
string dirStr = item.IsSend ? "Send" : "Recv";
// Handle this further
foreach (var rawCmd in packet.Commands)
{
var cmd = CommandParser.Parse(Version, rawCmd);
if (cmd != null)
{
Log.InfoFormat("{0} {1} {2} ({3})", dirStr, rawCmd.Name, JsonConvert.SerializeObject(cmd), BitConverter.ToString(rawCmd.Body));
}
else
{
Log.InfoFormat("{0} unknown {1} {2}", dirStr, rawCmd.Name, BitConverter.ToString(rawCmd.Body));
}
}
}
}
});
thread.Start();
}
private void AddToList(ReceivedPacket packet)
{
if (packet.Blocks.Count == 0)
return;
HashSet<ReceivedPacket> l;
if (!packets.TryGetValue(packet.Blocks.Count, out l))
packets.Add(packet.Blocks.Count, l = new HashSet<ReceivedPacket>());
l.Add(packet);
}
public void Xor(ReceivedPacket p)
{
if (Equals(p))
throw new Exception();
Xor(p.Data);
foreach (var r in p.Blocks)
if (!Blocks.Remove(r))
Blocks.Add(r);
GenerateHash();
}
private void SubtractNewLeaf(ReceivedPacket leaf, Queue<ReceivedPacket> output)
{
var supersets = new HashSet<ReceivedPacket>(packets.SelectMany(a => a.Value).Where(a => a.Blocks.IsProperSupersetOf(leaf.Blocks)));
foreach (var superset in supersets)
{
RemoveFromList(superset);
superset.Xor(leaf);
AddToList(superset);
if (superset.Blocks.Count == 1)
output.Enqueue(superset);
}
}
private bool RemoveFromList(ReceivedPacket packet)
{
HashSet<ReceivedPacket> l;
if (packets.TryGetValue(packet.Blocks.Count, out l))
return l.Remove(packet);
return false;
}