Publier vers Azure Service Bus via http derrière un proxy

Question

J'ai utilisé l'API Azure ServiceBus pour publier sur Service Bus. Le protocole sb ne fonctionne pas derrière le pare-feu. J'ai donc défini ServiceBusEnvironment.SystemConnectivity.Mode sur ConnectivityMode.Http. Cela fonctionnait tant que j'étais directement connecté à l'Internet. Cela ne fonctionne pas dans mon bureau, même après avoir configuré le proxy http. Y a-t-il un problème avec l'API ServiceBus ? J'apprécierais votre aide à ce sujet.

Voici le morceau de code que j'ai utilisé....

    public static void Initialize()
    {
        // Using Http to be friendly with outbound firewalls
        ServiceBusEnvironment.SystemConnectivity.Mode =
            ConnectivityMode.Http;

        //InitializeQueue();
    }

    // The name of your queue
    public const string QueueName = "ordersqueue";

    public static NamespaceManager CreateNamespaceManager()
    {
        // Create the namespace manager which gives you access to
        // management operations
        var uri = ServiceBusEnvironment.CreateServiceUri(
            "sb", Namespace, String.Empty);
        var tP = TokenProvider.CreateSharedSecretTokenProvider(
            IssuerName, IssuerKey);
        return new NamespaceManager(uri, tP);
    }

    private static void InitializeQueue()
    {
        // Create the namespace manager which gives you access to 
        // management operations
        var namespaceManager = CreateNamespaceManager();

        // Create the queue if it does not exist already
        if (!namespaceManager.QueueExists(QueueName))
        {
            namespaceManager.CreateQueue(QueueName);
        }

        // Get a client to the queue
        var messagingFactory = MessagingFactory.Create(
            namespaceManager.Address,
            namespaceManager.Settings.TokenProvider);
        OrdersQueueClient = messagingFactory.CreateQueueClient(
            QueueName);
    }

Voici la trace de la pile que j'obtiens................................ ...............................................................

Microsoft.ServiceBus.Messaging.MessagingCommunicationException was unhandled
  Message=Unable to connect to ServiceBus using HTTP connectivity mode
  Source=Microsoft.ServiceBus
  IsTransient=true
  StackTrace:
       at Microsoft.ServiceBus.Messaging.Sbmp.SbmpMessageSender.EndSendCommand(IAsyncResult result)
       at Microsoft.ServiceBus.Messaging.Sbmp.SbmpMessageSender.OnEndSend(IAsyncResult result)
       at Microsoft.ServiceBus.Messaging.Sbmp.SbmpMessageSender.OnSend(TrackingContext trackingContext, IEnumerable`1 messages, TimeSpan timeout)
       at Microsoft.ServiceBus.Messaging.MessageSender.Send(TrackingContext trackingContext, IEnumerable`1 messages, TimeSpan timeout)
       at Microsoft.ServiceBus.Messaging.MessageSender.Send(BrokeredMessage message)
       at Microsoft.ServiceBus.Messaging.QueueClient.Send(BrokeredMessage message)
       at AzureServiceBusPublisher.QueueConnector.send(String arg) in C:\Users\prasanh\Documents\Visual Studio 2010\Projects\AzureServiceBusPublisher\AzureServiceBusPublisher\QueueConnector.cs:line 72
       at AzureServiceBusPublisher.Program.sendMessagesToQueue() in C:\Users\prasanh\Documents\Visual Studio 2010\Projects\AzureServiceBusPublisher\AzureServiceBusPublisher\Program.cs:line 23
       at AzureServiceBusPublisher.Program.Main(String[] args) in C:\Users\prasanh\Documents\Visual Studio 2010\Projects\AzureServiceBusPublisher\AzureServiceBusPublisher\Program.cs:line 13
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException: System.ServiceModel.CommunicationException
       Message=Unable to connect to ServiceBus using HTTP connectivity mode
       Source=Microsoft.ServiceBus
       StackTrace:
         Server stack trace: 
            at Microsoft.ServiceBus.WebStream..ctor(Uri factoryEndpointUri, String webSocketRole)
            at Microsoft.ServiceBus.WebSocketConnection..ctor(Uri factoryEndpointUri, String webSocketRole, Int32 asyncReadBufferSize)
            at Microsoft.ServiceBus.WebSocketOnewayConnectionInitiator.Connect(Uri uri, TimeSpan timeout)
            at Microsoft.ServiceBus.WebSocketOnewayConnectionInitiator.BeginConnect(Uri uri, TimeSpan timeout, AsyncCallback callback, Object state)
            at Microsoft.ServiceBus.Channels.BufferedConnectionInitiator.BeginConnect(Uri uri, TimeSpan timeout, AsyncCallback callback, Object state)
            at Microsoft.ServiceBus.Channels.ConnectionPoolHelper.EstablishConnectionAsyncResult.OpenUsingNewConnection()
            at Microsoft.ServiceBus.Channels.ConnectionPoolHelper.EstablishConnectionAsyncResult.Begin()
            at Microsoft.ServiceBus.Channels.ConnectionPoolHelper.EstablishConnectionAsyncResult..ctor(ConnectionPoolHelper parent, TimeSpan timeout, AsyncCallback callback, Object state)
            at Microsoft.ServiceBus.Channels.ConnectionPoolHelper.BeginEstablishConnection(TimeSpan timeout, AsyncCallback callback, Object state)
            at Microsoft.ServiceBus.Channels.ClientFramingDuplexSessionChannel.OpenAsyncResult..ctor(ClientFramingDuplexSessionChannel duplexChannel, TimeSpan timeout, AsyncCallback callback, Object state)
            at Microsoft.ServiceBus.Channels.ClientFramingDuplexSessionChannel.OnBeginOpen(TimeSpan timeout, AsyncCallback callback, Object state)
            at Microsoft.ServiceBus.Channels.CommunicationObject.OpenAsyncResult..ctor(CommunicationObject communicationObject, TimeSpan timeout, AsyncCallback callback, Object state)
            at Microsoft.ServiceBus.Channels.CommunicationObject.BeginOpen(TimeSpan timeout, AsyncCallback callback, Object state)
            at Microsoft.ServiceBus.Channels.LayeredChannel`1.OnBeginOpen(TimeSpan timeout, AsyncCallback callback, Object state)
            at Microsoft.ServiceBus.Channels.CommunicationObject.OpenAsyncResult..ctor(CommunicationObject communicationObject, TimeSpan timeout, AsyncCallback callback, Object state)
            at Microsoft.ServiceBus.Channels.CommunicationObject.BeginOpen(TimeSpan timeout, AsyncCallback callback, Object state)
            at Microsoft.ServiceBus.Messaging.Sbmp.DuplexRequestBindingElement.DuplexRequestSessionChannel.OnBeginOpen(TimeSpan timeout, AsyncCallback callback, Object state)
            at System.ServiceModel.Channels.CommunicationObject.OpenAsyncResult.InvokeOpen()
            at System.ServiceModel.Channels.CommunicationObject.OpenAsyncResult..ctor(CommunicationObject communicationObject, TimeSpan timeout, AsyncCallback callback, Object state)
            at System.ServiceModel.Channels.CommunicationObject.BeginOpen(TimeSpan timeout, AsyncCallback callback, Object state)
            at Microsoft.ServiceBus.Messaging.Channels.SharedChannel`1.GetInstanceAsyncResult.<GetAsyncSteps>b__3(GetInstanceAsyncResult thisPtr, TimeSpan t, AsyncCallback c, Object s)
            at Microsoft.ServiceBus.Messaging.IteratorAsyncResult`1.EnumerateSteps(CurrentThreadType state)
            at Microsoft.ServiceBus.Messaging.IteratorAsyncResult`1.Start()
         Exception rethrown at [0]: 
            at Microsoft.ServiceBus.Common.AsyncResult.End[TAsyncResult](IAsyncResult result)
            at Microsoft.ServiceBus.Messaging.IteratorAsyncResult`1.End(IAsyncResult asyncResult)
            at Microsoft.ServiceBus.Messaging.Channels.SharedChannel`1.OnEndCreateInstance(IAsyncResult asyncResult)
            at Microsoft.ServiceBus.Messaging.SingletonManager`1.EndGetInstance(IAsyncResult asyncResult)
            at Microsoft.ServiceBus.Messaging.Channels.ReconnectBindingElement.ReconnectChannelFactory`1.RequestSessionChannel.RequestAsyncResult.<GetAsyncSteps>b__f(RequestAsyncResult thisPtr, IAsyncResult r)
            at Microsoft.ServiceBus.Messaging.IteratorAsyncResult`1.EnumerateSteps(CurrentThreadType state)
         Exception rethrown at [1]: 
            at Microsoft.ServiceBus.Common.AsyncResult.End[TAsyncResult](IAsyncResult result)
            at Microsoft.ServiceBus.Messaging.IteratorAsyncResult`1.End(IAsyncResult asyncResult)
            at Microsoft.ServiceBus.Messaging.Channels.ReconnectBindingElement.ReconnectChannelFactory`1.RequestSessionChannel.EndRequest(IAsyncResult result)
            at Microsoft.ServiceBus.Messaging.Sbmp.SbmpTransactionalAsyncResult`1.<GetAsyncSteps>b__44(TIteratorAsyncResult thisPtr, IAsyncResult a)
            at Microsoft.ServiceBus.Messaging.IteratorAsyncResult`1.EnumerateSteps(CurrentThreadType state)
         Exception rethrown at [2]: 
            at Microsoft.ServiceBus.Common.AsyncResult.End[TAsyncResult](IAsyncResult result)
            at Microsoft.ServiceBus.Messaging.IteratorAsyncResult`1.End(IAsyncResult asyncResult)
            at Microsoft.ServiceBus.Messaging.Sbmp.SbmpMessageSender.EndSendCommand(IAsyncResult result)
       InnerException: System.ServiceModel.CommunicationException
            Message=Unable to connect downstream
            Source=Microsoft.ServiceBus
            StackTrace:
                 at Microsoft.ServiceBus.WebStream.CreateDownStreamRequest(Uri endpointLocation)
                 at Microsoft.ServiceBus.WebStream.StartSession(Uri readEndpoint, Uri writeEndpoint)
                 at Microsoft.ServiceBus.WebStream..ctor(Uri factoryEndpointUri, String webSocketRole)
            InnerException: System.Net.WebException
                 Message=The remote server returned an error: (403) Forbidden.
                 Source=System
                 StackTrace:
                      at System.Net.HttpWebRequest.GetResponse()
                      at Microsoft.ServiceBus.WebStream.CreateDownStreamRequest(Uri endpointLocation)
                 InnerException:

Answer 1

Quelle est l'exception détaillée que vous obtenez ?

D'après mon expérience, trop de proxies ne prennent pas en charge HTTP 1.1 dans leur configuration par défaut. HTTP 1.1 est nécessaire pour que le Service Bus fonctionne correctement.

Sinon, je vous suggère de vérifier ceci guide de dépannage de la connectivité à Service Bus

Answer 2

Microsoft a publié une nouvelle API de bus de service cette semaine. Voir les liens ci-dessous http://msdn.microsoft.com/en-us/library/windowsazure/hh667331.aspx#New_SB J'ai testé ce problème dans le bus de service 1.8. Quelqu'un peut-il me dire si Microsoft a résolu ce problème ?

Answer 3

Je suis un SDE dans l'équipe de Windows Azure Service Bus. Veuillez essayer le guide posté.

Sachez également qu'à partir du SDK 1.7, Service Bus Messaging ne fonctionne qu'avec les proxys HTTP 1.1 qui prennent en charge le chunking POST. Nous travaillons sur une solution à long terme à ce problème et le prochain SDK 1.8 permet à Service Bus Relay de fonctionner sur ces proxies et également sur les proxies HTTP 1.0 en utilisant HTTPS plutôt que POST chunking.

Nous savons également que certains proxies Cisco (et peut-être d'autres) exigent des adresses de nom pour toute connexion d'adresse IP qui est tentée. Nous travaillons sur une solution à long terme à ce problème.