public async Task CertificateValidationClientServer_EndToEnd_Ok()
{
IPEndPoint endPoint = new IPEndPoint(IPAddress.IPv6Loopback, 0);
var server = new TcpListener(endPoint);
server.Start();
using (var clientConnection = new TcpClient(AddressFamily.InterNetworkV6))
{
IPEndPoint serverEndPoint = (IPEndPoint)server.LocalEndpoint;
Task clientConnect = clientConnection.ConnectAsync(serverEndPoint.Address, serverEndPoint.Port);
Task<TcpClient> serverAccept = server.AcceptTcpClientAsync();
Assert.True(
Task.WaitAll(
new Task[] { clientConnect, serverAccept },
TestConfiguration.TestTimeoutSeconds * 1000),
"Client/Server TCP Connect timed out.");
using (TcpClient serverConnection = await serverAccept)
using (SslStream sslClientStream = new SslStream(
clientConnection.GetStream(),
false,
ClientSideRemoteServerCertificateValidation))
using (SslStream sslServerStream = new SslStream(
serverConnection.GetStream(),
false,
ServerSideRemoteClientCertificateValidation))
{
string serverName = _serverCertificate.GetNameInfo(X509NameType.SimpleName, false);
string clientName = _clientCertificate.GetNameInfo(X509NameType.SimpleName, false);
var clientCerts = new X509CertificateCollection();
clientCerts.Add(_clientCertificate);
Task clientAuthentication = sslClientStream.AuthenticateAsClientAsync(
serverName,
clientCerts,
TestConfiguration.DefaultSslProtocols,
false);
Task serverAuthentication = sslServerStream.AuthenticateAsServerAsync(
_serverCertificate,
true,
TestConfiguration.DefaultSslProtocols,
false);
Assert.True(
Task.WaitAll(
new Task[] { clientAuthentication, serverAuthentication },
TestConfiguration.TestTimeoutSeconds * 1000),
"Client/Server Authentication timed out.");
}
}
}
public static IDisposable HandleClients(TcpListener listener, Func<TcpClient, string, Task> handleClientAccessPolicy, string policyResponse)
{
listener.Start();
var disposableHandler = ThreadPoolScheduler.Instance.ScheduleAsync(async (scheduler, ct) =>
{
var disposable = new BooleanDisposable();
while (!disposable.IsDisposed)
{
var client = await listener.AcceptTcpClientAsync();
await handleClientAccessPolicy(client, policyResponse);
await scheduler.Yield();
}
return disposable;
});
var compositeDisposable = new CompositeDisposable();
compositeDisposable.Add(Disposable.Create(() => listener.Stop()));
compositeDisposable.Add(disposableHandler);
return compositeDisposable;
}
private void StartListener(IPEndPoint endPoint)
{
_listener = new TcpListener(endPoint);
_listener.Start(5);
_log.WriteLine("Server {0} listening", endPoint.Address.ToString());
_listener.AcceptTcpClientAsync().ContinueWith(t => OnAccept(t), TaskScheduler.Default);
}
public static void TestTcpLisener()
{
var tcpListener = new TcpListener(IPAddress.Any, 3456);
tcpListener.Start();
tcpListener.AcceptTcpClientAsync();
var tcpClient = new TcpClient();
tcpClient.Connect(IPAddress.Parse("127.0.0.1"), 3456);
var clnt = tcpListener.AcceptTcpClientAsync().ConfigureAwait(true).GetAwaiter().GetResult();
}
/// <summary>
/// Accept Connections
/// </summary>
/// <returns></returns>
private async Task AcceptConnections()
{
listener = new TcpListener(Server.Address, Server.Port);
var bufferSize = Buffer; // Get the current buffer size on start
listener.Start();
Running = true;
// If there is an exception we want to output the message to the console for debugging
try
{
// While the Running bool is true, the listener is not null and there is no cancellation requested
while (Running && listener != null && !cancellationTokenSource.Token.IsCancellationRequested)
{
var client = await listener.AcceptTcpClientAsync().WithWaitCancellation(cancellationTokenSource.Token);
if (client != null)
{
// Proxy the data from the client to the server until the end of stream filling the buffer.
await ProxyClientConnection(client, bufferSize);
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
listener.Stop();
}
/// <summary>
/// Starts up the server and begins listening for connections
/// </summary>
internal async void Start()
{
IPAddress ipAddre = IPAddress.Loopback;
TcpListener listener = new TcpListener(ipAddre, _port);
listener.Start();
LogMessage("Server is running");
LogMessage("Listening on port " + _port);
this.Running = true;
while (true)
{
LogMessage("Waiting for connections...");
try
{
var tcpClient = await listener.AcceptTcpClientAsync();
HandleConnectionAsync(tcpClient);
}
catch (Exception exp)
{
LogMessage(exp.ToString());
}
}
}
public void Run()
{
WNSAuthentication.Instance.AuthenticateWithWNS();
Logger.Info($"Starting TCP listener on port {Port}");
var listener = new TcpListener(IPAddress.Any, Port);
listener.Start();
Logger.Info($"Starting heartbeat timer with interval {_heartBeatTimer.Interval}");
_heartBeatTimer.Start();
Task.Run(async () =>
{
while (true)
{
try
{
HandleNewConnection(await listener.AcceptTcpClientAsync());
}
catch (Exception ex)
{
Logger.Fatal("Exception occred when creating a new client session", ex);
}
}
});
}
/// <summary>
/// Method to be used on seperate thread.
/// </summary>
private Task RunServerAsync()
{
return Task.Run(async () =>
{
try
{
logger.Info("Starting tcp server on port {0}", settings.Port);
var listener = new TcpListener(IPAddress.Any, settings.Port);
listener.Start();
while (runServer)
{
try
{
var client = await listener.AcceptTcpClientAsync().WithCancellation(cancellationToken.Token);
logger.Info("Got new TCP client from {0}", client.Client.RemoteEndPoint as IPEndPoint);
tcpClients.AddLast(client);
HandleClientAsync(client);
}
catch (Exception exp)
{
logger.Error(exp, "Exception while waiting for new TCP client.");
}
}
}
catch (Exception exp)
{
logger.Error(exp, "Exception starting Tcp Server.");
}
});
}
private static string ReadFromClient()
{
TcpListener listener = null;
try
{
listener = new TcpListener(IPAddress.Any, 6740);
listener.Start();
var acceptTcpClientAsync = listener.AcceptTcpClientAsync();
acceptTcpClientAsync.Wait(5000);
if (acceptTcpClientAsync.IsCompleted)
{
using (TcpClient client = acceptTcpClientAsync.Result)
{
using (StreamReader reader = new StreamReader(client.GetStream(), Encoding.UTF8))
{
string actual;
actual = reader.ReadLine();
return actual;
}
}
}
else
{
return null;
}
}
finally
{
listener?.Stop();
}
}
public async void ListenAsync(string ip, int port)
{
if (Listening)
{
throw new Exception("Listening");
}
Listening = true;
server = new System.Net.Sockets.TcpListener(IPAddress.Parse(ip), port);
server.Start();
ListeningStarted(this, server);
Env.Print($"listening: {server.LocalEndpoint.ToString()}");
try
{
while (true)
{
Env.Print("waiting for a connection");
var client = await server.AcceptTcpClientAsync();
Env.Print("one incoming tcp connection");
var session = new TcpClientSession(client);
NewSession.Invoke(this, session);
TcpClientAccepted?.Invoke(this, session);
session.Receive();
}
}
catch (Exception ex)
{
Env.Print(ex.Message);
}
}
public void Run()
{
if (_disposed)
{
throw new InvalidOperationException("Cannot run disposed server");
}
_server = new TcpListener(_host, _port);
// Start listening for client requests.
_server.Start();
_running = true;
Task.Run(async () =>
{
while (_running)
{
var tcpClient = await _server.AcceptTcpClientAsync();
var cancelTokenSource = new CancellationTokenSource(TimeSpan.FromSeconds(5)); // todo configuration
var task = Task.Run(async () =>
{
var source = tcpClient.GetStream();
var lines = await new LineParser().Parse(source, cancelTokenSource.Token);
var httpRequest = HttpRequest.Parse(lines);
var responseChannel = new HttpResponseChannel(tcpClient);
var httpContext = new HttpContext(httpRequest, responseChannel, cancelTokenSource.Token);
_handler(httpContext);
}, cancelTokenSource.Token);
}
});
}
public void SocketConfiguration_applied_to_TcpSocket_when_connecting(NodeType nodeType, bool hasReceiveTimeout)
{
var endpoint = TestHelpers.CreateEndpointForTransport(RedFoxTransport.Tcp);
var socketConfiguration = new SocketConfiguration
{
ConnectTimeout = TimeSpan.FromSeconds(5),
SendBufferSize = 128,
ReceiveBufferSize = 256,
SendTimeout = TimeSpan.FromSeconds(1),
ReceiveTimeout = TimeSpan.FromSeconds(2)
};
var server = new TcpListener(IPAddress.Loopback, endpoint.Port);
server.Start();
try
{
server.AcceptTcpClientAsync();
var socket = (TcpSocket)new SocketFactory().CreateAndConnectAsync(endpoint, nodeType, socketConfiguration);
Assert.AreEqual(socketConfiguration.SendBufferSize, socket.TcpClient.SendBufferSize);
Assert.AreEqual(socketConfiguration.ReceiveBufferSize, socket.TcpClient.ReceiveBufferSize);
Assert.AreEqual(socketConfiguration.SendTimeout.ToMillisOrZero(), socket.TcpClient.SendTimeout);
var expectedReceiveTimeout = hasReceiveTimeout ? socketConfiguration.ReceiveTimeout.ToMillisOrZero() : 0;
Assert.AreEqual(expectedReceiveTimeout, socket.TcpClient.ReceiveTimeout);
}
finally
{
server.Stop();
}
}
public async void Start()
{
recorder.StartRecording();
var ipAdresses = Dns.GetHostEntry("localhost");
this.IPAddress =
ipAdresses.AddressList.FirstOrDefault(x => x.AddressFamily == AddressFamily.InterNetwork) ??
ipAdresses.AddressList.First();
listener = new TcpListener(this.IPAddress, 5050);
listener.Start();
IsActive = true;
while (IsActive)
{
var dTask = Task.Delay(1000);
var sTask = listener.AcceptTcpClientAsync();
var t = await Task.WhenAny(dTask, sTask);
if (t == sTask)
{
ProcessResult(sTask.Result);
}
if (terminate)
{
IsActive = false;
}
}
}
private async void buttonConnect_Click(object sender, RibbonControlEventArgs e)
{
if (!string.IsNullOrEmpty(comboBoxIp.Text))
{
try {
if (listner != null)
{
listner.Stop();
listner = null;
}
listner = new TcpListener(IPAddress.Parse(comboBoxIp.Text),port);
listner.Start();
labelStatus.Label = "データ待機中";
client = await listner.AcceptTcpClientAsync();
stream = client.GetStream();
byte[] buff = new byte[1];
var read = await stream.ReadAsync(buff, 0, buff.Length);
ExecuteCommand(buff[0]);
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
}
}
else
{
MessageBox.Show("IPを選択してください");
}
}
/// <summary>
/// Starts accepting connections.
/// </summary>
public void Start()
{
if (disposed)
{
throw new ObjectDisposedException(this.ToString());
}
// This is equivalent to the behavior of TcpListener.Create in .NET 4.5.
listener = new Net.TcpListener(IPAddress.Any, port);
//listener.Server.SetSocketOption(SocketOptionLevel.IPv6, SocketOptionName.IPv6Only, 0);
listener.Start();
listenerSubscription = Observable
.FromAsync(() => listener.AcceptTcpClientAsync())
.Repeat()
.Select(client => new ReactiveSocket(client))
.Subscribe(socket =>
{
connections.Add(socket);
observable.OnNext(socket);
IDisposable disposeSubscription = Observable.FromEventPattern <EventHandler, EventArgs>(
h => socket.Disposed += h, h => socket.Disposed -= h)
.FirstAsync().Subscribe(x =>
{
connections.Remove(socket);
});
this.socketDisposable.Add(disposeSubscription);
});
}
// http://stackoverflow.com/questions/7690520/c-sharp-networking-tcpclient
void TcpListenerLoop()
{
try
{
m_tcpListener = new System.Net.Sockets.TcpListener(IPAddress.Parse(m_privateIP), m_port);
m_tcpListener.Start();
Console.WriteLine($"*TcpListener is listening on port {m_privateIP}:{m_port}.");
while (true)
{
var tcpListenerCurrentClientTask = m_tcpListener.AcceptTcpClientAsync();
var tcpClient = tcpListenerCurrentClientTask.Result; // Task.Result is blocking. OK.
Console.WriteLine($"TcpListenerLoop.NextClientAccepted.");
Utils.Logger.Info($"TcpListenerLoop.NextClientAccepted.");
if (Utils.MainThreadIsExiting.IsSet)
return; // if App is exiting gracefully, don't start new thread
m_tcpClientQueue.Add(tcpClient); // If it is a long processing, e.g. reading the TcpClient, do it in a separate thread. If it is just added to the queue, don't start a new thread
//(new Thread((x) => ReadTcpClientStream(x)) { IsBackground = true }).Start(tcpClient); // read the BinaryReader() and deserialize in separate thread, so not block the TcpListener loop
}
}
catch (Exception e) // Background thread can crash application. A background thread does not keep the managed execution environment running.
{
if (Utils.MainThreadIsExiting.IsSet)
return; // if App is exiting gracefully, this Exception is not a problem
Utils.Logger.Error("Not expected Exception. We send email by StrongAssert and rethrow exception, which will crash App. TcpListenerLoop. " + e.Message + " ,InnerException: " + ((e.InnerException != null) ? e.InnerException.Message : ""));
StrongAssert.Fail(Severity.ThrowException, "Not expected Exception. We send email by StrongAssert and rethrow exception, which will crash App. TcpListenerLoop. VirtualBroker: manual restart is needed.");
throw; // if we don't listen to TcpListener any more, there is no point to continue. Crash the App.
}
}
public async Task ReadLineAsync_ThrowsOnConnectionClose()
{
TcpListener listener = new TcpListener(IPAddress.Loopback, 0);
try
{
listener.Start();
Task<TcpClient> acceptTask = listener.AcceptTcpClientAsync();
TcpClient client = new TcpClient();
await client.ConnectAsync(IPAddress.Loopback, ((IPEndPoint)listener.LocalEndpoint).Port);
using (TcpClient serverTcpClient = await acceptTask)
{
TcpClientConnectionChannel channel = new TcpClientConnectionChannel(serverTcpClient);
client.Dispose();
await Assert.ThrowsAsync<ConnectionUnexpectedlyClosedException>(async () =>
{
await channel.ReadLineAsync();
});
}
}
finally
{
listener.Stop();
}
}
static async Task AcceptClient (TcpListener server, TaskCompletionSource<byte[]> result)
{
using (var client = await server.AcceptTcpClientAsync ())
using (var stream = client.GetStream ()) {
result.SetResult (await DataStreamReader.ReadDataAsync (stream));
}
}
public void SendReceiveAndVerify_keeps_SendTimeout_ReceiveTimeout()
{
var endpoint = TestHelpers.CreateEndpointForTransport(RedFoxTransport.Tcp);
var socketConfiguration = new SocketConfiguration
{
SendTimeout = TimeSpan.FromSeconds(10),
ReceiveTimeout = TimeSpan.FromSeconds(20)
};
var server = new TcpListener(IPAddress.Loopback, endpoint.Port);
server.Start();
try
{
server.AcceptTcpClientAsync();
var nodeGreetingVerifier = new NodeGreetingMessageVerifier(NodeType.Requester, NodeType.Responder);
var socket = (TcpSocket)new SocketFactory().CreateAndConnectAsync(endpoint, NodeType.Responder, socketConfiguration);
Assert.Throws<TimeoutException>(() => nodeGreetingVerifier.SendReceiveAndVerify(socket, TimeSpan.FromSeconds(2)));
Assert.AreEqual(socketConfiguration.SendTimeout.ToMillisOrZero(), socket.TcpClient.SendTimeout);
Assert.AreEqual(socketConfiguration.ReceiveTimeout.ToMillisOrZero(), socket.TcpClient.ReceiveTimeout);
}
finally
{
server.Stop();
}
}
public async Task Start(IPAddress iP, int port)
{
tcpListener = new TcpListener(iP, port);
connectedTcpClient = null;
source = new CancellationTokenSource();
token = source.Token;
tcpListener.Start();
EventHandler serverStartedHandler = ServerStarted;
if (serverStartedHandler != null)
{
serverStartedHandler(this, null);
}
connectedTcpClient = await Task.Run(() => tcpListener.AcceptTcpClientAsync(), token);
if (connectedTcpClient != null)
{
EventHandler clientConnectedHandler = ClientConnected;
if (clientConnectedHandler != null)
{
clientConnectedHandler(this, null);
}
var c = new Thread(() => ServerReceive());
c.Start();
}
}
public Task Start(CancellationToken cancellationToken)
{
Console.WriteLine($"Starting viewer connector on port {_listenerPort}.");
var listener = new TcpListener(IPAddress.Any, _listenerPort);
listener.Start();
return Task.Run(async () =>
{
var clients = new List<Task>();
try
{
while (!cancellationToken.IsCancellationRequested)
{
var tcpClient =
await listener.AcceptTcpClientAsync().ContinueWith(t => t.Result, cancellationToken);
clients = clients.Where(task => !task.IsCompleted).ToList();
clients.Add(HandleSinglePlayer(tcpClient, cancellationToken));
}
}
finally
{
await Task.WhenAll(clients.ToArray());
}
}, cancellationToken);
}
public static void Main(string[] args)
{
Console.WriteLine("Starting...");
X509Certificate2 serverCertificate = new X509Certificate2("certificate.pfx"); // Any valid certificate with private key will work fine.
TcpListener listener = new TcpListener(IPAddress.Any, 4567);
TcpClient client = new TcpClient();
listener.Start();
Task clientConnectTask = client.ConnectAsync(IPAddress.Loopback, 4567);
Task<TcpClient> listenerAcceptTask = listener.AcceptTcpClientAsync();
Task.WaitAll(clientConnectTask, listenerAcceptTask);
TcpClient server = listenerAcceptTask.Result;
SslStream clientStream = new SslStream(client.GetStream(), false, new RemoteCertificateValidationCallback(ValidateServerCertificate), null, EncryptionPolicy.RequireEncryption);
SslStream serverStream = new SslStream(server.GetStream(), false, null, null, EncryptionPolicy.RequireEncryption);
Task clientAuthenticationTask = clientStream.AuthenticateAsClientAsync(serverCertificate.GetNameInfo(X509NameType.SimpleName, false), null, SslProtocols.Tls12, false);
Task serverAuthenticationTask = serverStream.AuthenticateAsServerAsync(serverCertificate, false, SslProtocols.Tls12, false);
Task.WaitAll(clientAuthenticationTask, serverAuthenticationTask);
byte[] readBuffer = new byte[256];
Task<int> readTask = clientStream.ReadAsync(readBuffer, 0, readBuffer.Length); // Create a pending ReadAsync, which will wait for data that will never come (for testing purposes).
byte[] writeBuffer = new byte[256];
Task writeTask = clientStream.WriteAsync(writeBuffer, 0, writeBuffer.Length); // The main thread actually blocks here (not asychronously waits) on .NET Core making this call.
bool result = Task.WaitAll(new Task[1] { writeTask }, 5000); // This code won't even be reached on .NET Core. Works fine on .NET Framework.
if (result)
{
Console.WriteLine("WriteAsync completed successfully while ReadAsync was pending... nothing locked up.");
}
else
{
Console.WriteLine("WriteAsync failed to complete after 5 seconds.");
}
}
public async Task Start(string remoteServerIp, ushort remoteServerPort, ushort localPort, string localIp)
{
//var clients = new ConcurrentDictionary<IPEndPoint, TcpClient>();
IPAddress localIpAddress = string.IsNullOrEmpty(localIp) ? IPAddress.IPv6Any : IPAddress.Parse(localIp);
var server = new System.Net.Sockets.TcpListener(new IPEndPoint(localIpAddress, localPort));
server.Server.SetSocketOption(SocketOptionLevel.IPv6, SocketOptionName.IPv6Only, false);
server.Start();
Console.WriteLine($"TCP proxy started {localPort} -> {remoteServerIp}|{remoteServerPort}");
while (true)
{
try
{
var remoteClient = await server.AcceptTcpClientAsync();
remoteClient.NoDelay = true;
new TcpClient(remoteClient, new IPEndPoint(IPAddress.Parse(remoteServerIp), remoteServerPort));
}
catch (Exception) { }
}
}
public override async void initialize()
{
log.Info("Setting up for AddonManager.");
isWaitingForClient = true;
try
{
listener = new TcpListener(IPAddress.Parse("127.0.0.1"), 0);
listener.Start();
port = ((IPEndPoint)listener.LocalEndpoint).Port;
log.Info(String.Format("Successfully setup AddonManager IPC Talk on port {0}.", port));
client = await listener.AcceptTcpClientAsync();
log.Info("Accepted AddonManager client.");
isAddonManagerRunning = true;
isWaitingForClient = false;
cts = new CancellationTokenSource();
ct = cts.Token;
stream = client.GetStream();
client.Client.NoDelay = true;
client.NoDelay = true;
listenLoop();
}
catch (ObjectDisposedException ex)
{
log.Warn("Shutdown of IPC Talk is requested while waiting a client connection from AddonManager.", ex);
}
}
public static async Task AcceptClientsAsync(TcpListener listener, CancellationToken cancel)
{
await Task.Yield();
while (!cancel.IsCancellationRequested)
{
try
{
var timeoutTask = Task.Delay(2000);
var acceptTask = listener.AcceptTcpClientAsync();
await Task.WhenAny(timeoutTask, acceptTask);
if (!acceptTask.IsCompleted)
continue;
var client = await acceptTask;
HandleClientAsync(client, cancel);
}
catch (Exception aex)
{
var ex = aex.GetBaseException();
Console.WriteLine("Accepting error: " + ex.Message);
}
}
}
public async Task TestTcpTraceListener()
{
var listener = new TcpListener(IPAddress.Loopback, 0);
listener.Start();
int port = ((IPEndPoint)listener.Server.LocalEndPoint).Port;
var traceSource = new TraceSource("UnitTestLogger");
traceSource.Listeners.Remove("Default");
traceSource.Switch.Level = SourceLevels.All;
traceSource.Listeners.Add(new TcpTraceListener(
IPAddress.Loopback, port,
new ExponentialBackoffTcpReconnectionPolicy()));
var listenerClient = await listener.AcceptTcpClientAsync();
traceSource.TraceEvent(TraceEventType.Information, 100, "Boris");
var receiverReader = new StreamReader(listenerClient.GetStream());
var line = await receiverReader.ReadLineAsync();
Assert.True(line.EndsWith("UnitTestLogger Information: 100 : Boris"));
listenerClient.Close();
listener.Stop();
traceSource.Close();
}
public async Task TestEventSink()
{
var listener = new TcpListener(IPAddress.Loopback, 0);
listener.Start();
int port = ((IPEndPoint)listener.Server.LocalEndPoint).Port;
var slabListener = new ObservableEventListener();
slabListener.Subscribe(new TcpEventSink(IPAddress.Loopback, port,
new ExponentialBackoffTcpReconnectionPolicy(),
new TestEventFormatter()));
var source = TestEventSource.GetInstance();
slabListener.EnableEvents(source, EventLevel.LogAlways, Keywords.All);
var listenerClient = await listener.AcceptTcpClientAsync();
source.Message("Boris", "Meep");
var receiverReader = new StreamReader(listenerClient.GetStream());
var line = await receiverReader.ReadLineAsync();
Assert.Equal(
"EventId=1 EventName=MessageInfo Level=Error \"FormattedMessage=Meep - Boris\" \"message=Boris\" \"caller=Meep\"",
line);
listenerClient.Close();
listener.Stop();
slabListener.Dispose();
}
public static void Main(string[] args)
{
Console.WriteLine("Server start");
int port = 55555;
var listener = new TcpListener(IPAddress.Loopback, port);
listener.Start();
Console.WriteLine("start listening");
var client = listener.AcceptTcpClientAsync().Result;
var stream = client.GetStream();
var reader = new StreamReader(stream);
Console.WriteLine("Connected");
var data = reader.ReadLine();
if (data == null) {
Console.WriteLine("data is null");
}
else
{
Console.WriteLine(data);
}
}
public async Task Start(string remoteServerIp, ushort remoteServerPort, ushort localPort, string localIp, byte[] byteMapClient2Setver, byte[] byteMapSetver2Client)
{
//var clients = new ConcurrentDictionary<IPEndPoint, TcpClient>();
IPAddress localIpAddress = string.IsNullOrEmpty(localIp) ? IPAddress.IPv6Any : IPAddress.Parse(localIp);
var server = new System.Net.Sockets.TcpListener(new IPEndPoint(localIpAddress, localPort));
server.Server.SetSocketOption(SocketOptionLevel.IPv6, SocketOptionName.IPv6Only, false);
server.Start();
Console.WriteLine($"TCP proxy started {localPort} -> {remoteServerIp}|{remoteServerPort}");
while (true)
{
try
{
var remoteClient = await server.AcceptTcpClientAsync();
remoteClient.NoDelay = true;
var ips = await Dns.GetHostAddressesAsync(remoteServerIp);
new TcpClient(remoteClient, new IPEndPoint(ips.First(), remoteServerPort), byteMapClient2Setver, byteMapSetver2Client);
}
catch (Exception ex)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(ex);
Console.ResetColor();
}
}
}
public static async Task ProcessAsync(TcpListener server)
{
var tcpClient = await server.AcceptTcpClientAsync();
using (var stream = tcpClient.GetStream())
{
await TcpMessenger.ReadAndWriteAsync(stream, Constants.ClientToServer, Constants.ServerToClient);
}
}
public async void SslStream_SendReceiveOverNetworkStream_Ok()
{
TcpListener listener = new TcpListener(IPAddress.Any, 0);
using (X509Certificate2 serverCertificate = Configuration.Certificates.GetServerCertificate())
using (TcpClient client = new TcpClient())
{
listener.Start();
Task clientConnectTask = client.ConnectAsync(IPAddress.Loopback, ((IPEndPoint)listener.LocalEndpoint).Port);
Task<TcpClient> listenerAcceptTask = listener.AcceptTcpClientAsync();
await Task.WhenAll(clientConnectTask, listenerAcceptTask);
TcpClient server = listenerAcceptTask.Result;
using (SslStream clientStream = new SslStream(
client.GetStream(),
false,
new RemoteCertificateValidationCallback(ValidateServerCertificate),
null,
EncryptionPolicy.RequireEncryption))
using (SslStream serverStream = new SslStream(
server.GetStream(),
false,
null,
null,
EncryptionPolicy.RequireEncryption))
{
Task clientAuthenticationTask = clientStream.AuthenticateAsClientAsync(
serverCertificate.GetNameInfo(X509NameType.SimpleName, false),
null,
SslProtocols.Tls12,
false);
Task serverAuthenticationTask = serverStream.AuthenticateAsServerAsync(
serverCertificate,
false,
SslProtocols.Tls12,
false);
await Task.WhenAll(clientAuthenticationTask, serverAuthenticationTask);
byte[] readBuffer = new byte[256];
Task<int> readTask = clientStream.ReadAsync(readBuffer, 0, readBuffer.Length);
byte[] writeBuffer = new byte[256];
Task writeTask = clientStream.WriteAsync(writeBuffer, 0, writeBuffer.Length);
bool result = Task.WaitAll(
new Task[1] { writeTask },
TestConfiguration.PassingTestTimeoutMilliseconds);
Assert.True(result, "WriteAsync timed-out.");
}
}
}
public void Start()
{
_tcpListener = new TcpListener(IPAddress.Any, 4444);
_tcpListener.Start();
_tcpListener.AcceptTcpClientAsync().ContinueWith(TcpClientConnected);
_pollSocketsThread = new Thread(_connectionService.PollConnectedUsersForUpdates);
_pollSocketsThread.Start();
}
private async Task AcceptClients(TcpListener listener)
{
while (m_Listen)
{
var client = await listener.AcceptTcpClientAsync();
m_ReceivingTasks.Add(ReceiveMessages(client));
InvokeConnected(client);
m_Clients.Add(client);
}
}
/// <summary>
/// Accept connections
/// </summary>
/// <returns></returns>
private async Task AcceptConnections()
{
listener = new TcpListener(Server.Address, Server.Port);
var bufferSize = Buffer; // Get the current buffer size on start
listener.Start();
Running = true;
// If there is an exception we want to output the message to the console for debugging
try
{
// While the Running bool is true, the listener is not null and there is no cancellation requested
while (Running && listener != null && !cancellationTokenSource.Token.IsCancellationRequested)
{
var client = await listener.AcceptTcpClientAsync().WithWaitCancellation(cancellationTokenSource.Token);
if (client != null)
{
if (ClientList.Count(definition => definition.ServerEndPoint == client.Client.LocalEndPoint) == 0)
{
var oldClients = ClientList.Where(definition => definition.ServerEndPoint == client.Client.LocalEndPoint)
.ToList();
foreach (var vncRepeaterDefinition in oldClients)
{
ClientList.Remove(vncRepeaterDefinition);
}
}
// Proxy the data from the client to the server until the end of stream filling the buffer.
if (ClientList.Count(definition => definition.ServerEndPoint == client.Client.LocalEndPoint) == 0)
{
var definition = new VNCRepeaterDefinition()
{
Authenticated = false,
FirstRequest = DateTime.UtcNow,
ClientEndPoint = (IPEndPoint)client.Client.RemoteEndPoint,
ServerEndPoint = (IPEndPoint)client.Client.LocalEndPoint
};
this.ClientList.Add(definition);
// We havent dealt with this one before.
await ProxyClientConnection(client, definition, bufferSize);
}
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
listener.Stop();
}
/// <summary>
/// AcceptTcpClientAsync does not natively support cancellation, so use this wrapper. Make sure
/// the cancellation token is registered to stop the listener.
/// </summary>
/// <remarks>See https://stackoverflow.com/questions/19220957/tcplistener-how-to-stop-listening-while-awaiting-accepttcpclientasync</remarks>
private async Task <TcpClient> AcceptTcpClientAsync(CancellationToken token)
{
try
{
return(await _tcpListener.AcceptTcpClientAsync().ConfigureAwait(false));
}
catch (Exception ex) when(token.IsCancellationRequested)
{
throw new OperationCanceledException("Cancellation was requested while awaiting TCP client connection.", ex);
}
}
private async static Task ServerProcess(TcpListener listener)
{
using (TcpClient c = await listener.AcceptTcpClientAsync())
using (NetworkStream networkstream = c.GetStream())
{
string ControlCode = Encoding.UTF8.GetString(await ReadMessage(networkstream));
RxLedStatus();
DeviceControl.DeviceOperation(ControlCode);
Data.Source.Msg("\nModuleTcpServer client control code: " + ControlCode);
}
}
private void ListenForClientsProc(CancellationTokenSource cts)
{
IsListeningChanged?.Invoke(true);
try
{
while (!cts.Token.IsCancellationRequested && (_server != null))
{
System.Threading.Thread.Sleep(1);
if (IsListening && !_server.Pending())
{
continue;
}
TcpClient client = null;
try
{
client = _server.AcceptTcpClientAsync().Result;
}
catch (NullReferenceException)
{
break;
}
catch (ObjectDisposedException)
{
break;
}
catch (SocketException e)
{
if (e.SocketErrorCode != SocketError.Interrupted) //the server was stopped
{
Log.e("SocketException: Socket Error Code {0}: {1}\n{2}", e.SocketErrorCode,
Enum.GetName(typeof(System.Net.Sockets.SocketError), e.SocketErrorCode),
e.ToString());
}
break;
}
catch (Exception e)
{
Log.e(e);
break;
}
OnCreateClientHandler(client);
}
}
catch (Exception e)
{
Log.e(e);
}
finally
{
IsListening = false;
IsListeningChanged?.Invoke(IsListening);
}
}
// BCL Tcp Server
public static async Task BclServer()
{
var listener = new System.Net.Sockets.TcpListener(Default.IPEndPoint);
try {
listener.Start();
using (var client = await listener.AcceptTcpClientAsync()) {
var sr = new StreamReader(client.GetStream());
var message = await sr.ReadToEndAsync();
Console.WriteLine("BCL: " + message);
}
} finally {
listener.Stop();
}
}
private static void Listen(object state)
{
if (_listener.Pending())
{
Broadcast(_listener, new MessageEventArgs(new Message("Connection Found.")));
System.Net.Sockets.TcpClient client = (System.Net.Sockets.TcpClient)_listener.AcceptTcpClientAsync().AsyncState;
if (client != null)
{
NetworkStream ns = client.GetStream();
byte[] bytes = new byte[256];
string data;
int i;
while ((i = ns.Read(bytes, 0, bytes.Length)) != 0)
{
data = System.Text.Encoding.ASCII.GetString(bytes, 0, i);
Broadcast(_listener, new MessageEventArgs(new Message(data)));
}
client.Dispose();
}
}
}
private async void InitListener()
{
var tcpServer = new Sockets.TcpListener(IPAddress.Any, ClientListenerPort);
tcpServer.Start();
while (true)
{
tcpReciever = await tcpServer.AcceptTcpClientAsync();
var stream = tcpReciever.GetStream();
properlyDisconnected = false;
while (true)
{
var message = TcpUtils.ReadMessage(stream);
if (string.IsNullOrEmpty(message))
{
if (!properlyDisconnected)
{
Invoke(new Action(() =>
{
MessageBox.Show(this,
"Соединение с сервером потеряно. Подключение будет закрыто",
"Сервер отключен",
MessageBoxButtons.OK, MessageBoxIcon.Information);
Disconnect();
}));
}
break;
}
message = DateTime.Now.ToString("t") + ": " + message;
lbMessages.Invoke(new Action(() => lbMessages.Items.Add(message)));
}
}
}
