Azure服务总线中继和http协议

Question

我必须建立一个Azure服务，它必须可以访问其他平台(安卓，iOS)。这就是为什么我尝试使用http或https协议来设置它，而不是使用sb (服务总线)协议(ref：服务总线绑定，最后一段)。

不幸的是，服务在初始化时抛出异常：

"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中的服务初始化代码是：

  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中的设置是：

  <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" />

当设置中的协议更改为"sb“时，上述代码工作正常。

Answer 1

经过几个小时的斗争，我终于使它与https协议一起工作。在服务主机创建线中进行了关键的更改：

_host = new ServiceHost(typeof(WorkerRoleService));

而不是：

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

我还将安全令牌从SAS更改为ACS。它需要使用Azure CLI重新创建我的服务总线，因为Azure门户不允许对先前创建的服务总线启用ACS。有关更多细节，请参见以下文章：如何通过powershell创建windows服务ACS？ (请阅读所有评论，因为订阅选择的正确命令是subscription )。

我的最后代码是：

  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);
  }

上述代码的配置：

  <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" />

现在，我们必须尝试从Android应用程序连接到这个服务--我希望它会好起来。来自测试WCF应用程序的连接工作正常，非常重要的是:允许Azure缩放(几个附加到服务总线的工作人员角色实例)。

以上代码不适用于http协议。我把它放在这里是因为它在Azure仿真器上工作(将服务总线切换到本地服务总线for Windows)。

希望上面这些能帮上忙..。