Пример #1
0
 private static NetworkDetector.ConnectivityStatus CheckTcpConnectivity(Uri baseAddress, out Exception exception)
 {
     NetworkDetector.ConnectivityStatus connectivityStatu = NetworkDetector.ConnectivityStatus.Unavailable;
     exception = null;
     if (!RelayEnvironment.GetEnvironmentVariable("RELAYFORCEHTTP", false) && !RelayEnvironment.GetEnvironmentVariable("RELAYFORCEHTTPS", false))
     {
         try
         {
             BinaryMessageEncodingBindingElement binaryMessageEncodingBindingElement = new BinaryMessageEncodingBindingElement();
             TcpTransportBindingElement          tcpTransportBindingElement          = new TcpTransportBindingElement();
             tcpTransportBindingElement.ConnectionPoolSettings.MaxOutboundConnectionsPerEndpoint = 100;
             tcpTransportBindingElement.MaxReceivedMessageSize = (long)65536;
             CustomBinding customBinding = new CustomBinding();
             customBinding.Elements.Add(binaryMessageEncodingBindingElement);
             customBinding.Elements.Add(tcpTransportBindingElement);
             customBinding.OpenTimeout    = TimeSpan.FromSeconds(10);
             customBinding.SendTimeout    = TimeSpan.FromSeconds(10);
             customBinding.ReceiveTimeout = TimeSpan.MaxValue;
             int num = 9350;
             Uri uri = ServiceBusUriHelper.CreateServiceUri("net.tcp", string.Concat(baseAddress.DnsSafeHost, ":", num.ToString(CultureInfo.InvariantCulture)), "/");
             IChannelFactory <IDuplexSessionChannel> channelFactory = null;
             IDuplexSessionChannel duplexSessionChannel             = null;
             try
             {
                 channelFactory = customBinding.BuildChannelFactory <IDuplexSessionChannel>(new object[0]);
                 channelFactory.Open();
                 duplexSessionChannel = channelFactory.CreateChannel(new EndpointAddress(uri, new AddressHeader[0]));
                 duplexSessionChannel.Open();
                 Message message = Message.CreateMessage(MessageVersion.Default, "http://schemas.microsoft.com/netservices/2009/05/servicebus/connect/OnewayPing", new OnewayPingMessage());
                 duplexSessionChannel.Send(message, customBinding.SendTimeout);
                 duplexSessionChannel.Close();
                 duplexSessionChannel = null;
                 channelFactory.Close();
                 channelFactory = null;
             }
             finally
             {
                 if (duplexSessionChannel != null)
                 {
                     duplexSessionChannel.Abort();
                 }
                 if (channelFactory != null)
                 {
                     channelFactory.Abort();
                 }
             }
             connectivityStatu = NetworkDetector.ConnectivityStatus.Available;
         }
         catch (CommunicationException communicationException)
         {
             exception = communicationException;
         }
         catch (TimeoutException timeoutException)
         {
             exception = timeoutException;
         }
     }
     NetworkDetector.LogResult(baseAddress, "Tcp", connectivityStatu);
     return(connectivityStatu);
 }
Пример #2
0
 public static InternalConnectivityMode DetectInternalConnectivityModeForHttp(Uri uri)
 {
     if (NetworkDetector.httpWebStreamConnectivityStatus == 3 && NetworkDetector.httpsWebSocketConnectivityStatus == 3 && NetworkDetector.httpsWebStreamConnectivityStatus == 3)
     {
         NetworkDetector.Reset();
     }
     Exception[] exceptionArray = new Exception[3];
     if (NetworkDetector.IsHttpsWebSocketConnectivityAvailable(uri, out exceptionArray[0]))
     {
         return(InternalConnectivityMode.HttpsWebSocket);
     }
     if (NetworkDetector.IsHttpWebStreamConnectivityAvailable(uri, out exceptionArray[1]))
     {
         return(InternalConnectivityMode.Http);
     }
     if (!NetworkDetector.IsHttpsWebStreamConnectivityAvailable(uri, out exceptionArray[2]))
     {
         Exception[] array = (
             from e in (IEnumerable <Exception>)exceptionArray
             where e != null
             select e).ToArray <Exception>();
         CultureInfo invariantCulture = CultureInfo.InvariantCulture;
         object[]    host             = new object[] { uri.Host };
         string      str = string.Format(invariantCulture, "Unable to reach {0} HTTP (80, 443)", host);
         if ((int)array.Length <= 0)
         {
             throw Fx.Exception.AsError(new CommunicationException(str), null);
         }
         throw Fx.Exception.AsError(new CommunicationException(str, new AggregateException(array)), null);
     }
     return(InternalConnectivityMode.Https);
 }
Пример #3
0
 public static ConnectivityMode DetectConnectivityModeForAutoDetect(Uri uri)
 {
     if (NetworkDetector.tcpConnectivityStatus == 3 && NetworkDetector.httpConnectivityStatus == 3)
     {
         NetworkDetector.Reset();
     }
     Exception[] exceptionArray = new Exception[2];
     if (NetworkDetector.IsNetTcpConnectivityAvailable(uri, out exceptionArray[0]))
     {
         return(ConnectivityMode.Tcp);
     }
     if (!NetworkDetector.IsHttpConnectivityAvailable(uri, out exceptionArray[1]))
     {
         Exception[] array = (
             from e in (IEnumerable <Exception>)exceptionArray
             where e != null
             select e).ToArray <Exception>();
         string reach = SRClient.UnableToReach(uri.Host, 9351, 9352);
         if ((int)array.Length <= 0)
         {
             throw Fx.Exception.AsError(new CommunicationException(reach), null);
         }
         throw Fx.Exception.AsError(new CommunicationException(reach, new AggregateException(array)), null);
     }
     return(ConnectivityMode.Http);
 }
Пример #4
0
 private static NetworkDetector.ConnectivityStatus CheckHttpWebStreamConnectivity(Uri baseAddress, out Exception exception)
 {
     NetworkDetector.ConnectivityStatus connectivityStatu = NetworkDetector.ConnectivityStatus.Unavailable;
     exception = null;
     if (!RelayEnvironment.GetEnvironmentVariable("RELAYFORCEHTTPS", false) && WebStream.IsSupportingScheme(ServiceBusUriHelper.CreateServiceUri("http", baseAddress.Authority, "/"), out exception))
     {
         connectivityStatu = NetworkDetector.ConnectivityStatus.Available;
     }
     NetworkDetector.LogResult(baseAddress, "Http WebStream", connectivityStatu);
     return(connectivityStatu);
 }
Пример #5
0
 private static NetworkDetector.ConnectivityStatus CheckHttpsWebStreamConnectivity(Uri baseAddress, out Exception exception)
 {
     NetworkDetector.ConnectivityStatus connectivityStatu = NetworkDetector.ConnectivityStatus.Unavailable;
     exception = null;
     if (WebStream.IsSupportingScheme(ServiceBusUriHelper.CreateServiceUri("https", baseAddress.Authority, "/"), out exception))
     {
         connectivityStatu = NetworkDetector.ConnectivityStatus.Available;
     }
     NetworkDetector.LogResult(baseAddress, "https WebStream", connectivityStatu);
     return(connectivityStatu);
 }
Пример #6
0
        private static bool IsHttpsWebSocketConnectivityAvailable(Uri baseAddress, out Exception exception)
        {
            NetworkDetector.ConnectivityStatus connectivityStatu;
            exception = null;
            while (true)
            {
                NetworkDetector.ConnectivityStatus connectivityStatu1 = (NetworkDetector.ConnectivityStatus)Interlocked.CompareExchange(ref NetworkDetector.httpsWebSocketConnectivityStatus, 1, 0);
                switch (connectivityStatu1)
                {
                case NetworkDetector.ConnectivityStatus.Unknown:
                {
                    connectivityStatu = NetworkDetector.CheckHttpsWebSocketConnectivity(baseAddress, out exception);
                    NetworkDetector.ConnectivityStatus connectivityStatu2 = (NetworkDetector.ConnectivityStatus)Interlocked.CompareExchange(ref NetworkDetector.httpsWebSocketConnectivityStatus, (int)connectivityStatu, 1);
                    if (connectivityStatu2 == NetworkDetector.ConnectivityStatus.Testing)
                    {
                        return(connectivityStatu == NetworkDetector.ConnectivityStatus.Available);
                    }
                    if (connectivityStatu2 == NetworkDetector.ConnectivityStatus.Unknown)
                    {
                        continue;
                    }
                    if (connectivityStatu == connectivityStatu2)
                    {
                        return(connectivityStatu == NetworkDetector.ConnectivityStatus.Available);
                    }
                    NetworkDetector.httpsWebSocketConnectivityStatus = 0;
                    continue;
                }

                case NetworkDetector.ConnectivityStatus.Testing:
                {
                    Thread.Sleep(5);
                    continue;
                }

                case NetworkDetector.ConnectivityStatus.Available:
                case NetworkDetector.ConnectivityStatus.Unavailable:
                {
                    return(connectivityStatu1 == NetworkDetector.ConnectivityStatus.Available);
                }

                default:
                {
                    goto case NetworkDetector.ConnectivityStatus.Unknown;
                }
                }
            }
            return(connectivityStatu == NetworkDetector.ConnectivityStatus.Available);
        }
        public static IRelayedOnewaySender CreateConnection(BindingContext context, RelayedOnewayTransportBindingElement transportBindingElement, Uri uri)
        {
            ConnectivitySettings connectivitySetting = context.BindingParameters.Find <ConnectivitySettings>();
            NameSettings         nameSetting         = context.BindingParameters.Find <NameSettings>();
            ConnectivityMode     connectivityMode    = (connectivitySetting != null ? connectivitySetting.Mode : ConnectivityModeHelper.SystemConnectivityMode);

            if (connectivityMode == ConnectivityMode.AutoDetect)
            {
                connectivityMode = NetworkDetector.DetectConnectivityModeForAutoDetect(uri);
            }
            if (connectivityMode != ConnectivityMode.Tcp)
            {
                return(new RelayedOnewayHttpSender(context, uri, nameSetting.ServiceSettings.TransportProtection == RelayTransportProtectionMode.EndToEnd));
            }
            return(new RelayedOnewayTcpSender(context, transportBindingElement, uri, nameSetting.ServiceSettings.TransportProtection == RelayTransportProtectionMode.EndToEnd, new EventTraceActivity()));
        }
Пример #8
0
 private static NetworkDetector.ConnectivityStatus CheckHttpConnectivity(Uri baseAddress, out Exception exception)
 {
     NetworkDetector.ConnectivityStatus connectivityStatu = NetworkDetector.ConnectivityStatus.Unavailable;
     exception = null;
     try
     {
         Uri        uri        = ServiceBusUriHelper.CreateServiceUri("http", baseAddress.Authority, "/");
         WebRequest webRequest = WebRequest.Create(uri);
         webRequest.Method = "GET";
         StreamReader streamReader = new StreamReader(webRequest.GetResponse().GetResponseStream());
         using (streamReader)
         {
             streamReader.ReadToEnd();
         }
         connectivityStatu = NetworkDetector.ConnectivityStatus.Available;
     }
     catch (WebException webException)
     {
         exception = webException;
     }
     NetworkDetector.LogResult(baseAddress, "Http", connectivityStatu);
     return(connectivityStatu);
 }
Пример #9
0
 private static InternalConnectivityMode GetInternalConnectivityMode(ConnectivityMode detectMode, HttpConnectivityMode defaultHttpDetectMode, Uri uri)
 {
     if (detectMode == ConnectivityMode.Tcp)
     {
         return(InternalConnectivityMode.Tcp);
     }
     if (detectMode != ConnectivityMode.Http || defaultHttpDetectMode == HttpConnectivityMode.AutoDetect)
     {
         if (detectMode != ConnectivityMode.AutoDetect)
         {
             return(NetworkDetector.DetectInternalConnectivityModeForHttp(uri));
         }
         return(NetworkDetector.DetectInternalConnectivityModeForAutoDetect(uri));
     }
     if (defaultHttpDetectMode == HttpConnectivityMode.Http)
     {
         return(InternalConnectivityMode.Http);
     }
     if (defaultHttpDetectMode == HttpConnectivityMode.Https)
     {
         return(InternalConnectivityMode.Https);
     }
     return(InternalConnectivityMode.HttpsWebSocket);
 }
Пример #10
0
 static NetworkDetector()
 {
     NetworkChange.NetworkAvailabilityChanged += new NetworkAvailabilityChangedEventHandler((object o, NetworkAvailabilityEventArgs ea) => NetworkDetector.Reset());
     NetworkChange.NetworkAddressChanged      += new NetworkAddressChangedEventHandler((object o, EventArgs ea) => NetworkDetector.Reset());
 }