的Silverlight 3與WCF服務 -

Question

我有一個SL3應用程序試圖連接到一個WFC服務。應用程序和服務都位於同一個域中的不同安全服務器上。該SL3應用程序住在這裏：

https://www-r.aetc.af.mil/fm/tools/batsnet/authenticated/modules/blah等等

當SL應用程序啓動時，它立即連接到服務，但是當它使得它的第一個電話到服務，我得到這個異常：

An exception occurred during the operation, making the result invalid. Check InnerException for exception details. 
    at System.ComponentModel.AsyncCompletedEventArgs.RaiseExceptionIfNecessary() 
    at FMDashboard2.FMDashSvc3Ref.GetMetricDataCompletedEventArgs.get_Result() 
    at FMDashboard2.Objects.DataRetrieval.service_GetMetricDataCompleted(Object sender, GetMetricDataCompletedEventArgs e) 
============ 
Inner exception: An error occurred while trying to make a request to URI 'https://bats.aetc.af.mil/fm/tools/FMDashSvc/FMDash3.svc'. This could be due to attempting to access a service in a cross-domain way without a proper cross-domain policy in place, or a policy that is unsuitable for SOAP services. You may need to contact the owner of the service to publish a cross-domain policy file and to ensure it allows SOAP-related HTTP headers to be sent. This error may also be caused by using internal types in the web service proxy without using the InternalsVisibleToAttribute attribute. Please see the inner exception for more details. 
    at System.ServiceModel.AsyncResult.End[TAsyncResult](IAsyncResult result) 
    at System.ServiceModel.Channels.ServiceChannel.SendAsyncResult.End(SendAsyncResult result) 
    at System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result) 
    at System.ServiceModel.ClientBase`1.ChannelBase`1.EndInvoke(String methodName, Object[] args, IAsyncResult result) 
    at FMDashboard2.FMDashSvc3Ref.FMDash3Client.FMDash3ClientChannel.EndGetMetricData(IAsyncResult result) 
    at FMDashboard2.FMDashSvc3Ref.FMDash3Client.FMDashboard2.FMDashSvc3Ref.FMDash3.EndGetMetricData(IAsyncResult result) 
    at FMDashboard2.FMDashSvc3Ref.FMDash3Client.OnEndGetMetricData(IAsyncResult result) 
    at System.ServiceModel.ClientBase`1.OnAsyncCallCompleted(IAsyncResult result) 
============ 
Inner exception: 
    at System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state) 
    at System.Net.Browser.BrowserHttpWebRequest.EndGetResponse(IAsyncResult asyncResult) 
    at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelAsyncRequest.CompleteGetResponse(IAsyncResult result) 
============ 
Inner exception: Security error. 
    at System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult) 
    at System.Net.Browser.BrowserHttpWebRequest.c__DisplayClass5.b__4(Object sendState) 
    at System.Net.Browser.AsyncHelper.c__DisplayClass2.b__0(Object sendState)

這裏是我的ClientConfig：

<configuration> 
    <system.serviceModel> 
     <bindings> 
      <customBinding> 
       <binding name="SecureBinding_FMDashSvc"> 
        <binaryMessageEncoding /> 
        <httpsTransport maxReceivedMessageSize="2147483647" maxBufferSize="2147483647" /> 
       </binding> 
       <binding name="LocalBinding_FMDashSvc"> 
        <binaryMessageEncoding /> 
        <httpTransport maxReceivedMessageSize="2147483647" maxBufferSize="2147483647" /> 
       </binding> 
      </customBinding> 
     </bindings> 

     <client> 
      <endpoint address="https://bats.aetc.af.mil/fm/tools/FMDashSvc/FMDash3.svc" 
         binding="customBinding" 
         bindingConfiguration="SecureBinding_FMDashSvc" 
         contract="FMDashSvc3Ref.FMDash3" 
         name="SecureEndPoint_FMDashSvc_GDIT_BATS" /> 
      <endpoint address="http://localhost:53519/FMDash3.svc" 
         binding="customBinding" 
         bindingConfiguration="LocalBinding_FMDashSvc" 
         contract="FMDashSvc3Ref.FMDash3" 
         name="LocalEndPoint_FMDashSvc" /> 
     </client> 
    </system.serviceModel> 
</configuration>

這裏是我的服務網絡配置：

<system.serviceModel> 
    <behaviors> 
     <serviceBehaviors> 
      <behavior name="FMDashboardSvc3.StandardBehavior" > 
       <serviceMetadata httpsGetEnabled="true" /> 
       <serviceDebug includeExceptionDetailInFaults="true" /> 
      </behavior> 
     </serviceBehaviors> 
    </behaviors> 

    <bindings> 
     <wsHttpBinding > 
      <binding name="secureBinding"> 
       <security mode="Transport"> 
        <transport clientCredentialType="Certificate" /> 
       </security> 
      </binding> 
     </wsHttpBinding> 
    </bindings> 

    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" /> 

    <services > 
     <service name="FMDashboardSvc3.FMDash3" behaviorConfiguration="FMDashboardSvc3.StandardBehavior"> 
      <endpoint address="/" 
         binding="wsHttpBinding" 
         bindingConfiguration="secureBinding" 
         contract="FMDashboardSvc3.FMDash3" /> 
     </service> 
    </services> 
</system.serviceModel> 

這是我的ClientAccessPolicy.xml文件：

<?xml version="1.0" encoding="utf-8" ?> 
<access-policy> 
    <cross-domain-access> 
     <policy> 
      <allow-from http-request-headers="SOAPAction"> 
       <domain uri ="http://*" /> 
       <domain uri ="https://*" /> 
      </allow-from> 
      <grant-to> 
       <resource path="/" include-subpaths="true"/> 
      </grant-to> 
     </policy> 

     <policy> 
      <allow-from https-request-headers="SOAPAction"> 
       <domain uri ="http://*" /> 
       <domain uri ="https://*" /> 
      </allow-from> 
      <grant-to> 
       <resource path="/" include-subpaths="true"/> 
      </grant-to> 
     </policy> 
    </cross-domain-access> 
</access-policy> 

我一直工作在這幾個星期。我錘擊Codeproject和MSDN論壇，沒有人能夠爲我提供解決方案。幫助我，obi-wan-kenobi。

Answer 1

我認爲這個問題可能與服務器端的clientCredentialType有關。例如：

<security mode="Transport"> 
    <transport clientCredentialType="Certificate" /> 
</security> 

我不認爲Silverlight支持傳輸級的這種客戶端憑證。

Answer 2

您將您的服務公開爲Silverlight不支持的Ws綁定。如果你用basicHttpBinding使用相同的安全設置，它應該可以工作。