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);
}
private static void LogResult(Uri checkUri, string checkMode, NetworkDetector.ConnectivityStatus result)
{
if (result == NetworkDetector.ConnectivityStatus.Available)
{
return;
}
MessagingClientEtwProvider.Provider.DetectConnectivityModeFailed(checkUri.AbsoluteUri, checkMode);
}
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);
}
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);
}
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);
}
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);
}
