protected override void ChannelRead0(IChannelHandlerContext ctx, DatagramPacket packet)
{
var content = packet.Content;
var address = packet.Sender;
byte[] msg = new byte[content.ReadableBytes];
content.ReadBytes(msg);
if (msg.Length < 98)
{
_logger.Error($"Incorrect message, length: {msg.Length}, sender: {address}");
ctx.DisconnectAsync();
return;
}
var typeRaw = msg[97];
if (!Enum.IsDefined(typeof(MessageType), (int)typeRaw))
{
if (_logger.IsDebug)
{
_logger.Debug($"Unsupported message type: {typeRaw}, sender: {address}, message {msg.ToHexString()}");
}
ctx.DisconnectAsync();
return;
}
var type = (MessageType)typeRaw;
if (_logger.IsTrace)
{
_logger.Trace($"Received message: {type}");
}
DiscoveryMessage message;
try
{
message = Deserialize(type, msg);
message.FarAddress = (IPEndPoint)address;
}
catch (Exception e)
{
if (_logger.IsDebug)
{
_logger.Debug($"Error during deserialization of the message, type: {type}, sender: {address}, msg: {msg.ToHexString()}, {e.Message}");
}
return;
}
try
{
_discoveryManager.OnIncomingMessage(message);
}
catch (Exception e)
{
_logger.Error($"Error while processing message, type: {type}, sender: {address}, message: {message}", e);
}
}
public override void ExceptionCaught(IChannelHandlerContext context, Exception exception)
{
//In case of SocketException we log it as debug to avoid noise
string clientId = _session?.Node?.ToString("c") ?? $"unknown {_session?.RemoteHost}";
if (exception is SocketException)
{
if (_logger.IsTrace)
{
_logger.Trace($"Error in communication with {clientId} (SocketException): {exception}");
}
}
else
{
if (_logger.IsDebug)
{
_logger.Debug($"Error in communication with {clientId}: {exception}");
}
}
if (_session?.Node?.IsStatic != true)
{
context.DisconnectAsync().ContinueWith(x =>
{
if (x.IsFaulted && _logger.IsTrace)
{
_logger.Trace($"Error while disconnecting on context on {this} : {x.Exception}");
}
});
}
else
{
base.ExceptionCaught(context, exception);
}
}
public virtual async Task Process(IChannelHandlerContext ctx, RpcMessage rpcMessage)
{
if (ChannelManager.IsRegistered(ctx.Channel))
{
await OnRequestMessage(ctx, rpcMessage);
}
else
{
try
{
if (Logger().IsEnabled(LogLevel.Debug))
{
Logger().LogInformation($"closeChannelHandlerContext channel:{ctx.Channel}");
}
await ctx.DisconnectAsync();
await ctx.CloseAsync();
}
catch (Exception exx)
{
Logger().LogError(exx, exx.Message);
}
if (Logger().IsEnabled(LogLevel.Debug))
{
Logger().LogInformation($"close a unhandled connection! [{ctx.Channel}]");
}
}
}
public override void ExceptionCaught(IChannelHandlerContext context, Exception exception)
{
//In case of SocketException we log it as debug to avoid noise
if (exception is SocketException)
{
if (_logger.IsTrace)
{
_logger.Trace($"Exception when processing discovery messages (SocketException): {exception}");
}
}
else
{
if (_logger.IsError)
{
_logger.Error("Exception when processing discovery messages", exception);
}
}
context.DisconnectAsync().ContinueWith(x =>
{
if (x.IsFaulted && _logger.IsTrace)
{
_logger.Trace($"Error while disconnecting on context on {this} : {x.Exception}");
}
});
}
public virtual async Task Process(IChannelHandlerContext ctx, RpcMessage rpcMessage)
{
if (_futures.TryRemove(rpcMessage.Id, out MessageFuture messageFuture) && messageFuture != null)
{
messageFuture.ResultMessage = rpcMessage.Body;
}
else
{
if (ChannelManager.IsRegistered(ctx.Channel))
{
await OnResponseMessage(ctx, rpcMessage);
}
else
{
try
{
if (Logger().IsEnabled(LogLevel.Debug))
{
Logger().LogInformation("closeChannelHandlerContext channel:" + ctx.Channel);
}
await ctx.DisconnectAsync();
await ctx.CloseAsync();
}
catch (Exception exx)
{
Logger().LogError(exx, exx.Message);
}
if (Logger().IsEnabled(LogLevel.Debug))
{
Logger().LogInformation($"close a unhandled connection! [{ctx.Channel}]");
}
}
}
}
public void Disconnect()
{
if (channelHandlerContext != null)
{
channelHandlerContext.DisconnectAsync();
}
}
public override Task DisconnectAsync(IChannelHandlerContext ctx)
{
if (this.Logger.IsEnabled(this.InternalLevel))
{
this.Logger.Log(this.InternalLevel, this.Format(ctx, "DISCONNECT"));
}
return(ctx.DisconnectAsync());
}
/// <inheritdoc />
public override void Disconnect(IChannelHandlerContext ctx, IPromise promise)
{
if (Logger.IsEnabled(MsLogLevel.Information))
{
Logger.LogInformation("Channel {0} disconnect", ctx.Channel);
}
ctx.DisconnectAsync(promise);
}
public override void Disconnect(IChannelHandlerContext ctx, IPromise promise)
{
if (Logger.IsEnabled(InternalLevel))
{
Logger.Log(InternalLevel, Format(ctx, "DISCONNECT"));
}
ctx.DisconnectAsync(promise);
}
public void Error_on_context_when_disconnecting_channels_does_not_prevent_the_event()
{
bool wasCalled = false;
Session session = new(30312, new Node(TestItem.PublicKeyA, "127.0.0.1", 8545), _channel, NullDisconnectsAnalyzer.Instance, LimboLogs.Instance);
_channelHandlerContext.DisconnectAsync().Returns(Task.FromException<Exception>(new Exception()));
session.Disconnected += (s, e) => wasCalled = true;
session.Handshake(TestItem.PublicKeyA);
session.Init(5, _channelHandlerContext, _packetSender);
session.MarkDisconnected(DisconnectReason.Other, DisconnectType.Local, "test");
Assert.True(wasCalled);
}
public void Dispose()
{
if (GetHabbo() != null)
{
GetHabbo().OnDisconnect();
}
MachineId = string.Empty;
_disconnected = true;
_habbo = null;
channel.DisconnectAsync();
}
public override void ExceptionCaught(IChannelHandlerContext context, Exception exception)
{
//In case of SocketException we log it as debug to avoid noise
if (exception is SocketException)
{
if (_logger.IsTrace)
{
_logger.Trace($"Exception when processing discovery messages (SocketException): {exception}");
}
}
else
{
if (_logger.IsError)
{
_logger.Error("Exception when processing discovery messages", exception);
}
}
context.DisconnectAsync();
}
public override void ExceptionCaught(IChannelHandlerContext context, Exception exception)
{
//In case of SocketException we log it as debug to avoid noise
string clientId = _session?.Node?.ToString("c") ?? $"unknown {_session?.RemoteHost}";
if (exception is SocketException)
{
if (_logger.IsTrace)
{
_logger.Trace($"Error in communication with {clientId} (SocketException): {exception}");
}
}
else
{
if (_logger.IsDebug)
{
_logger.Debug($"Error in communication with {clientId}: {exception}");
}
}
context.DisconnectAsync();
}
public Task DisconnectAsync(IChannelHandlerContext context)
{
return context.DisconnectAsync();
}
private void HandleRpcError(IChannelHandlerContext ctx, long messageReqMsgId, TRpcError error)
{
Log.Warn($"#{ClientSettings.ClientSession.SessionId}: Recieve error from server: {error.ErrorMessage}");
if (Log.IsDebugEnabled)
{
var jMessages = JsonConvert.SerializeObject(error);
Log.Debug(jMessages);
}
switch (error.ErrorMessage)
{
case "PHONE_CODE_INVALID":
RequestService.ReturnException(messageReqMsgId, new PhoneCodeInvalidException());
break;
case "SESSION_PASSWORD_NEEDED":
RequestService.ReturnException(messageReqMsgId, new CloudPasswordNeededException());
break;
case var phoneMigrate when phoneMigrate.StartsWith("PHONE_MIGRATE_"):
case var userMigrate when userMigrate.StartsWith("USER_MIGRATE_"):
case var netwokMigrate when netwokMigrate.StartsWith("NETWORK_MIGRATE_"):
var dcNumber = int.Parse(Regex.Match(error.ErrorMessage, @"\d+").Value);
var dcOption = ClientSettings.Config.DcOptions.First(option => option.Id == dcNumber);
ClientSettings.ClientSession.AuthKey = null;
ClientSettings.ClientSession.ServerAddress = dcOption.IpAddress;
ClientSettings.ClientSession.Port = dcOption.Port;
ctx.Flush();
SessionWriter.Save(ClientSettings.ClientSession)
.ContinueWith(_ => ctx.DisconnectAsync());
break;
case var fileMigrate when fileMigrate.StartsWith("FILE_MIGRATE_"):
var fileMigrateDcNumber = Regex.Match(fileMigrate, @"\d+").Value;
var fileMigrateDcIdx = int.Parse(fileMigrateDcNumber);
RequestService.ReturnException(messageReqMsgId, new FileMigrationException(fileMigrateDcIdx));
break;
case var floodMessage when floodMessage.StartsWith("FLOOD_WAIT_"):
var floodMessageTime = Regex.Match(floodMessage, @"\d+").Value;
var seconds = int.Parse(floodMessageTime);
RequestService.ReturnException(messageReqMsgId, new FloodWaitException(TimeSpan.FromSeconds(seconds)));
break;
case "AUTH_KEY_UNREGISTERED":
ClientSettings.ClientSession.AuthKey = null;
ClientSettings.ClientSession.UserId = null;
SessionWriter.Save(ClientSettings.ClientSession).ContinueWith(_ => RequestService.ReturnException(messageReqMsgId, new UserNotAuthorizeException()));
break;
default:
RequestService.ReturnException(messageReqMsgId, new UnhandledException(error.ErrorMessage));
break;
}
}
public override Task DisconnectAsync(IChannelHandlerContext ctx)
{
_log.Info("Channel {0} disconnect", ctx.Channel);
return(ctx.DisconnectAsync());
}
public Task DisconnectAsync(IChannelHandlerContext context)
{
return(context.DisconnectAsync());
}
public override Task DisconnectAsync(IChannelHandlerContext context)
{
_logger.Debug($"{context.Channel} DISCONNECT");
return(context.DisconnectAsync());
}
public override Task DisconnectAsync(IChannelHandlerContext context)
{
// Try to flush one last time if flushes are pending before disconnect the channel.
ResetReadAndFlushIfNeeded(context);
return(context.DisconnectAsync());
}
public override Task DisconnectAsync(IChannelHandlerContext context)
{
RegisterFiredEvent(SupportedEvent.DisconnectAsync);
return(context.DisconnectAsync());
}
public override async Task DisconnectAsync(IChannelHandlerContext ctx)
{
Logger().LogInformation($"Channel {ctx.Channel} disconnect");
await ctx.DisconnectAsync();
}
public virtual void Disconnect(IChannelHandlerContext context, IPromise promise) => context.DisconnectAsync(promise);
public override Task DisconnectAsync(IChannelHandlerContext context)
{
Log.Debug($"{context.Name}: DisconnectAsync");
return(context.DisconnectAsync());
}
public Task DisconnectAsync() => _ctx.DisconnectAsync();
public override void Disconnect(IChannelHandlerContext ctx, IPromise promise)
{
// Try to flush one last time if flushes are pending before disconnect the channel.
ResetReadAndFlushIfNeeded(ctx);
_ = ctx.DisconnectAsync(promise);
}
protected override void ChannelRead0(IChannelHandlerContext ctx, DatagramPacket packet)
{
var content = packet.Content;
var address = packet.Sender;
byte[] msg = new byte[content.ReadableBytes];
content.ReadBytes(msg);
if (msg.Length < 98)
{
if (_logger.IsDebug)
{
_logger.Debug($"Incorrect discovery message, length: {msg.Length}, sender: {address}");
}
ctx.DisconnectAsync();
return;
}
var typeRaw = msg[97];
if (!Enum.IsDefined(typeof(MessageType), (int)typeRaw))
{
if (_logger.IsDebug)
{
_logger.Debug($"Unsupported message type: {typeRaw}, sender: {address}, message {msg.ToHexString()}");
}
ctx.DisconnectAsync();
return;
}
var type = (MessageType)typeRaw;
if (_logger.IsTrace)
{
_logger.Trace($"Received message: {type}");
}
DiscoveryMessage message;
try
{
message = Deserialize(type, msg);
message.FarAddress = (IPEndPoint)address;
}
catch (Exception e)
{
if (_logger.IsDebug)
{
_logger.Debug($"Error during deserialization of the message, type: {type}, sender: {address}, msg: {msg.ToHexString()}, {e.Message}");
}
ctx.DisconnectAsync();
return;
}
try
{
if ((ulong)message.ExpirationTime < _timestamper.EpochSeconds)
{
if (_logger.IsDebug)
{
_logger.Debug($"Received a discovery message that has expired, type: {type}, sender: {address}, message: {message}");
}
ctx.DisconnectAsync();
return;
}
if (!message.FarAddress.Equals((IPEndPoint)packet.Sender))
{
if (_logger.IsDebug)
{
_logger.Debug($"Discovery fake IP detected - pretended {message.FarAddress} but was {ctx.Channel.RemoteAddress}, type: {type}, sender: {address}, message: {message}");
}
ctx.DisconnectAsync();
return;
}
if (message.FarPublicKey == null)
{
if (_logger.IsDebug)
{
_logger.Debug($"Discovery message without a valid signature {message.FarAddress} but was {ctx.Channel.RemoteAddress}, type: {type}, sender: {address}, message: {message}");
}
ctx.DisconnectAsync();
return;
}
_discoveryManager.OnIncomingMessage(message);
}
catch (Exception e)
{
if (_logger.IsDebug)
{
_logger.Error($"DEBUG/ERROR Error while processing message, type: {type}, sender: {address}, message: {message}", e);
}
ctx.DisconnectAsync();
}
}
public override Task DisconnectAsync(IChannelHandlerContext ctx)
{
if (this.Logger.IsEnabled(this.InternalLevel))
{
this.Logger.Log(this.InternalLevel, this.Format(ctx, "DISCONNECT"));
}
return ctx.DisconnectAsync();
}
public virtual Task DisconnectAsync(IChannelHandlerContext context) => context.DisconnectAsync();
public override void Disconnect(IChannelHandlerContext context, IPromise promise)
{
Log(Event.DISCONNECT);
context.DisconnectAsync(promise);
}
