Azure服務總線中繼和http協議

Question

我必須設置一個Azure服務，該服務必須可用於其他平台（Android，iOS）。 這就是為什么我嘗試使用http或https協議而不是sb（服務總線）協議（參考： 服務總線綁定 ，最后一段）來設置它的原因。

不幸的是，服務在初始化時引發異常：

"HTTP could not register URL http://+:80/ServiceBusDefaultNamespace/. Your process does not have access rights to this namespace (see http://go.microsoft.com/fwlink/?LinkId=70353 for details)."

WorkerRole中的服務初始化代碼為：

  private void InitailizeService()
  {
     Trace.WriteLine("Initializing service");
     try
     {
        var serviceAddress = CloudConfigurationManager.GetSetting("Microsoft.ServiceBus.ServiceAddress");
        var protocol = CloudConfigurationManager.GetSetting("Microsoft.ServiceBus.Protocol");
        string keyName = CloudConfigurationManager.GetSetting("Microsoft.ServiceBus.ServiceKeyName");
        string sharedAccessKey = CloudConfigurationManager.GetSetting("Microsoft.ServiceBus.ServiceSharedAccessKey");

        Uri uri = new Uri(protocol + "://" + serviceAddress + "/ServiceBusDefaultNamespace");

        ServiceBusEnvironment.SystemConnectivity.Mode = ConnectivityMode.Http;
        _host = new ServiceHost(typeof(WorkerRoleService), uri);

        TokenProvider tp = null;
        if (!String.IsNullOrEmpty(keyName))
        {
           tp = TokenProvider.CreateSharedAccessSignatureTokenProvider(keyName, sharedAccessKey);
        }
        var sharedSecretServiceBusCredential = new TransportClientEndpointBehavior(tp);

        ContractDescription contractDescription = ContractDescription.GetContract(typeof(IInstalSoftCloudService), typeof(WorkerRoleService));

        ServiceEndpoint serviceEndPoint = new ServiceEndpoint(contractDescription);
        serviceEndPoint.Address = new EndpointAddress(uri);

        Binding binding;
        switch (protocol)
        {
           case "sb":
              binding = new NetTcpRelayBinding { TransferMode = TransferMode.Streamed, MaxReceivedMessageSize = 1048576000, MaxBufferSize = 10485760, MaxConnections = 200 };
              break;
           case "http":
           case "https":
              binding = new WebHttpRelayBinding { TransferMode = TransferMode.Streamed, MaxReceivedMessageSize = 1048576000, MaxBufferSize = 10485760 };
              break;
           default:
              throw new NotSupportedException("Protocol not supported: " + protocol);
        }
        serviceEndPoint.Binding = binding;
        serviceEndPoint.Behaviors.Add(sharedSecretServiceBusCredential);

        _host.Description.Endpoints.Add(serviceEndPoint);

        _host.Open();

        Trace.WriteLine("Service initialization completed");
     }
     catch (Exception e)
     {
        Trace.WriteLine("Service initialization failed.\r\n" + e.Message);

        throw; 
     }
  }

ServiceConfiguration.Cloud.cscfg中的設置為：

  <Setting name="Microsoft.ServiceBus.ServiceAddress" value="<my namespace here>.servicebus.windows.net" />
  <Setting name="Microsoft.ServiceBus.ServiceKeyName" value="RootManageSharedAccessKey" />
  <Setting name="Microsoft.ServiceBus.ServiceSharedAccessKey" value="<my key here>" />
  <Setting name="Microsoft.ServiceBus.Protocol" value="http" />

將設置中的協議更改為“ sb”時，以上代碼可以正常工作。

Answer 1

經過數小時的努力，我最終使其與https協議一起使用。 關鍵更改是在服務主機創建行中進行的：

_host = new ServiceHost(typeof(WorkerRoleService));

代替：

_host = new ServiceHost(typeof(WorkerRoleService), uri);

我還將安全令牌從SAS更改為ACS。 盡管需要使用Azure CLI重新創建我的服務總線，但這是必需的，因為Azure門戶不允許將ACS啟用到先前創建的服務總線。 有關更多詳細信息，請參見以下文章： 如何通過Powershell創建Windows Service ACS？ （閱讀所有注釋，因為正確的訂閱選擇命令是Select-AzureSubscription）。

我的最終代碼是：

  private void InitailizeService()
  {
     try
     {
        var serviceAddress = CloudConfigurationManager.GetSetting("Microsoft.ServiceBus.ServiceAddress");
        var serviceNamespace = CloudConfigurationManager.GetSetting("Microsoft.ServiceBus.ServiceNamespace");
        var protocol = CloudConfigurationManager.GetSetting("Microsoft.ServiceBus.Protocol");
        string issuerName = CloudConfigurationManager.GetSetting("Microsoft.ServiceBus.ServiceIssuerName");
        string issuerSecret = CloudConfigurationManager.GetSetting("Microsoft.ServiceBus.ServiceIssuerSecret");

        Uri uri = ServiceBusEnvironment.CreateServiceUri(protocol, serviceAddress, serviceNamespace);

        ServiceBusEnvironment.SystemConnectivity.Mode = ConnectivityMode.Http;
        _host = new ServiceHost(typeof(WorkerRoleService));

        TokenProvider tp = null;
        if (!String.IsNullOrEmpty(issuerName))
        {
           tp = TokenProvider.CreateSharedSecretTokenProvider(issuerName, issuerSecret);
        }
        var sharedSecretServiceBusCredential = new TransportClientEndpointBehavior(tp);

        Binding binding;
        switch (protocol)
        {
           case "sb":
              binding = new NetTcpRelayBinding { TransferMode = TransferMode.Streamed, MaxReceivedMessageSize = 1048576000, MaxBufferSize = 10485760, MaxConnections = 200 };
              break;
           case "http":
              binding = new BasicHttpBinding { TransferMode = TransferMode.Streamed, MaxReceivedMessageSize = 1048576000, MaxBufferSize = 10485760 };
              break;
           case "https":
              var wsbinding = new WS2007HttpRelayBinding { MaxReceivedMessageSize = 1048576000 };
              wsbinding.Security.Mode = EndToEndSecurityMode.Transport;
              wsbinding.Security.RelayClientAuthenticationType = RelayClientAuthenticationType.None;
              binding = wsbinding;
              break;
           default:
              throw new NotSupportedException("Protocol not supported: " + protocol);
        }
        var serviceEndPoint = _host.AddServiceEndpoint(typeof(IInstalSoftCloudService), binding, uri);
        serviceEndPoint.Behaviors.Add(sharedSecretServiceBusCredential);

        // Lines below are for MEX and publishing of the service
        EnableMetadataExchange(uri, sharedSecretServiceBusCredential, binding);
        ServiceRegistrySettings serviceRegistrySettings = new ServiceRegistrySettings(DiscoveryType.Public) { DisplayName = "InstalSystemMobileEngine" };
        foreach (ServiceEndpoint subscriberEndpoint in _host.Description.Endpoints)
        {
           subscriberEndpoint.Behaviors.Add(serviceRegistrySettings);
        }

        _host.Open();

        Trace.WriteLine("Service initialization completed");
     }
     catch (Exception e)
     {
        Trace.WriteLine("Service initialization failed.\r\n" + e.Message);

        throw; 
     }
  }

  private void EnableMetadataExchange(Uri aBaseUri, TransportClientEndpointBehavior aBehavior, Binding aBinding, bool aEnableHttpGet = true)
  {
     if (_host.State == CommunicationState.Opened)
        throw new InvalidOperationException("Host already opened");
     var metadataBehavior = _host.Description.Behaviors.Find<ServiceMetadataBehavior>();
     if (metadataBehavior == null)
     {
        metadataBehavior = new ServiceMetadataBehavior();
        _host.Description.Behaviors.Add(metadataBehavior);
        Trace.WriteLine("_host.Description.Behaviors.Add(metadataBehavior)");
     }
     var mexEndpoint = _host.AddServiceEndpoint(typeof(IMetadataExchange), aBinding, new Uri(aBaseUri, "mex"));
     mexEndpoint.Behaviors.Add(aBehavior);
  }

以上代碼的配置：

  <Setting name="Microsoft.ServiceBus.ServiceAddress" value="<service bus address - without .servicebus.windows.net>" />
  <Setting name="Microsoft.ServiceBus.ServiceNamespace" value="ServiceBusDefaultNamespace/" />
  <Setting name="Microsoft.ServiceBus.ServiceIssuerName" value="<issuer name>" />
  <Setting name="Microsoft.ServiceBus.ServiceIssuerSecret" value="<issuer secret>" />
  <Setting name="Microsoft.ServiceBus.Protocol" value="https" />

現在，我們將不得不嘗試從Android應用程序連接到該服務-我希望一切正常。 來自測試WCF應用程序的連接可以正常工作，並且非常重要：允許Azure擴展（連接到Service Bus的多個輔助角色實例）。

上面的代碼不適用於http協議。 我把它留在這里是因為它可以在Azure模擬器上運行（將服務總線切換到Windows的本地服務總線）。

希望以上內容能幫助某人...