asp.net – 经过身份验证的服务不支持跨域javascript回调. AJAX通过SSL代理查询WCF服务

我有一个WCF / SVC Web服务,通过
AJAX进行
JavaScript调用.

该页面通过位于DMZ中的SSL代理(https://gate.company.com/MyPage)访问,然后将请求转发到内部Web服务器(http：// myLocalWebServer / MyPage).

经过大量的googeling和尝试,我能够使它工作,使用参数crossDomainScriptAccessEnabled和Access-Control-Allow-Origin.虽然,它仅在身份验证模式设置为false或用户尚未登录时才有效.一旦从您需要登录的页面内进行调用(表单身份验证),它就不再起作用了.我得到的错误消息是：

cross domain javascript callback is not supported in authenticated services

但是,一旦我注销并从非受保护页面进行调用,它确实会再次起作用.

我的服务看起来像这样

namespace MyNameSpace
{
   [ServiceContract(Namespace = "MyNameSpace")]
   [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
   public class Service
   {
      [OperationContract]
       public string[] GetDropDownData(string id)
      {
         List<string> resultList = new List<string>();
         ...
         return resultList.ToArray();
      }
   }
}

JavaScript中的服务调用和回调方法：

function fillDropdwon(dropId){
    jQuery.ajax({
        type: "POST",dataType: "jsonp",contentType: "application/json; charset=utf-8",cache: true,url: "Service.svc/GetDropDownData",data: '{"dropId":"' + dropId + '"}',jsonpCallback: "onDone",error: function (a,b,c) {
            alert("error");
        }
    });
}

// Callback-Methode after ServiceCall
function onDone(result) {
   var theDropDown = jQuery("#<%= cboSelection.ClientID %>");
    if (theDropDown.length > 0) {
        //Clear the old entries
        theDropDown.empty();

        //Add an empty entry
        if ("<%= cboSelection.ShowEmptyRow %>".toLowerCase() == "true") {
            theDropDown.append($('<option></option>'));
        }

        // Add the found items
        for (var i = 0; i < result.length; i++) {
            var text = result[i];
            theDropDown.append($('<option></option>').val(text).html(text));
        }
    }
}

涉及服务的web.config部分：

<system.serviceModel>
  <behaviors>
    <endpointBehaviors>
      <behavior name="MyNameSpace.ServiceAspNetAjaxBehavior">
        <enableWebScript />
      </behavior>
    </endpointBehaviors>
    <serviceBehaviors>
      <behavior>
        <serviceMetadata httpGetEnabled="true" />
      </behavior>
    </serviceBehaviors>
  </behaviors>
  <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
  <standardEndpoints>
    <webScriptEndpoint>
      <standardEndpoint crossDomainScriptAccessEnabled="true" name=""/>
    </webScriptEndpoint>
  </standardEndpoints>
  <services>
    <service name="MyNameSpace.Service">
      <!-- Service endpoint for HTTPS -->
      <endpoint address="" behaviorConfiguration="MyNameSpace.ServiceAspNetAjaxBehavior" binding="webHttpBinding" bindingConfiguration="jsonpBinding" contract="MyNameSpace.Service" /> -->
    </service>
  </services>
  <bindings>
    <webHttpBinding>
      <binding name="jsonpBinding" crossDomainScriptAccessEnabled="true">
        <security mode="None" />
      </binding>
      <binding name="jsonpSslBinding" crossDomainScriptAccessEnabled="true">
        <security mode="Transport" />
      </binding>
    </webHttpBinding>
  </bindings>
</system.serviceModel>

我首先尝试使用ASP.NET AJAX代理来调用服务,但这不起作用,因为直接调用了web服务器,这不是SSL,我得到的错误或多或少：’Page https：/ /gate.company.com/MyPage尝试加载不保存来自页面http：// myLocalWebServer / MyPage …’的内容.这就是我使用上面列出的AJAX调用的原因.

function fillDropdwon(dropId){
   var service = new MyNameSpace.Service();
   service.GetDropDownData(dropId,onDone);
}

我还尝试在web.config中添加以下内容

<system.webServer>
  <httpProtocol>
    <customHeaders>
      <!-- Enable Cross Domain AJAX calls -->
      <remove name="Access-Control-Allow-Origin" />
      <add name="Access-Control-Allow-Origin" value="https://gate.company.com"/>
    </customHeaders>
  </httpProtocol>
</system.webServer>

我检查了发送到服务器的标头,看到当我没有登录时,标题看起来像这样：

Request URL:`https://gate.company.com/MyPage/Servic.svc/GetDropDownData?callback=onDone`
Request Method:POST
Status Code:200 OK
Request Headersview source
Accept:text/javascript,application/javascript,application/ecmascript,application/x-ecmascript,*/*; q=0.01
Accept-Encoding:gzip,deflate,sdch
Accept-Language:de-DE,de;q=0.8,en-US;q=0.6,en;q=0.4,fr-CH;q=0.2,fr;q=0.2
Connection:keep-alive
Content-Length:161
Content-Type:application/json; charset=UTF-8
Cookie:__utma=174172730.1157990369.1360852643.1381229705.1383150435.9; __utmc=174172730; __utmz=174172730.1369635484.4.3.utmcsr=google|utmccn=(organic)|utmcmd=organic|utmctr=(not%20provided); promopost=oaezz3fzzj0o4l3fccxh0ss1;
ASP.NET_SessionID=
Host:`gate.company.com`
Origin:`https://gate.company.com`
Referer:`https://gate.company.com/MyPage/QuickCalculator.aspx?ObjectIdentity=47a93f52-6be6-4bd6-9600-e8eb9c8ff360`
User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML,like Gecko) Chrome/31.0.1650.48 Safari/537.36
X-Requested-With:XMLHttpRequest
Query String Parametersview sourceview URL encoded
callback:onDone
Request Payloadview source
{dropId:123}
dropId: "123"
Response Headersview source
Cache-Control:private
Connection:Keep-Alive
Content-Encoding:gzip
Content-Length:1339
Content-Type:application/x-javascript
Date:Sun,01 Dec 2013 15:14:25 GMT
Keep-Alive:timeout=15,max=97
Server:Microsoft-IIS/7.5
Vary:Accept-Encoding
X-AspNet-Version:4.0.30319
X-Powered-By

并且响应看起来像这样.

onDone(["result1","result2"]);

当我从受保护的页面中调用服务时,我得到了这个：

Request URL:`https://gate.company.com/MyPage/Servic.svc/GetDropDownData?callback=onDone`
Request Method:POST
Status Code:200 OK
Request Headersview source
Accept:text/javascript,fr;q=0.2
Connection:keep-alive
Content-Length:161
Content-Type:application/json; charset=UTF-8
Cookie:__utma=174172730.1157990369.1360852643.1381229705.1383150435.9; __utmc=174172730; __utmz=174172730.1369635484.4.3.utmcsr=google|utmccn=(organic)|utmcmd=organic|utmctr=(not%20provided); promopost=oaezz3fzzj0o4l3fccxh0ss1;
**ASP.NET_SessionID=; .ASPXAUTH=AB5ADCE12C7847CA452DD54D903E6787C7D1F0009B9E3277D2EC50DE9C421D1331B87A6DCA2432993933794AB9BDE833E44EC58E217D5AA1D588132C6E1C67D4AD7692840359D9A719EC2A53826CF54FDC0943B4E0AB29093920143E1E987080AC7C35E63594FD678535972D06AEC0AAF74AF8BE8DFC3746B499CB032E7771F10B924110DB344824B3253F9BECB3CDD8**
Host:`gate.company.com`
Origin:`https://gate.company.com`
Referer:`https://gate.company.com/MyPage/QuickCalculator.aspx?ObjectIdentity=47a93f52-6be6-4bd6-9600-e8eb9c8ff360`
User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML,01 Dec 2013 15:14:25 GMT
**jsonerror:true**
Keep-Alive:timeout=15,max=97
Server:Microsoft-IIS/7.5
Vary:Accept-Encoding
X-AspNet-Version:4.0.30319
**X-Powered-By:ASP.NET**

并且响应看起来像这样.

onDone({"ExceptionDetail":{"HelpLink":null,"InnerException":null,"Message":"Cross domain javascript callback is not supported in authenticated services.","StackTrace":"   bei System.ServiceModel.Dispatcher.JavascriptCallbackMessageInspector.AfterReceiveRequest(Message& request,IClientChannel channel,InstanceContext instanceContext)\u000d\u000a   bei System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.AfterReceiveRequestCore(MessageRpc& rpc)\u000d\u000a   bei System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2(MessageRpc& rpc)\u000d\u000a   bei System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)","Type":"System.NotSupportedException"},"ExceptionType":"System.NotSupportedException",InstanceContext instanceContext)\u000d\u000a   bei System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.AfterReceiveRequestCore(MessageRpc& rpc)\u000d\u000a   bei System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2(MessageRpc& rpc)\u000d\u000a   bei System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)"},500);

主要区别在于,对于“登录”版本,存在SessionID和jsonerror：true.

有办法解决这个问题吗？

是否无法通过在调用之前更改标头或“类似”来“禁用”AJAX请求的身份验证.或者我的代码web.config中是否有任何错误？

我很感激任何暗示,因为我在努力了很长时间.

解决方法

我终于找到了解决问题的方法.我写下了我为解决方案所采取的步骤,并希望这将有助于解决类似问题的任何人.

我首先使用ASP.NET AJAX代理并进行了这样的调用.

var service = new SDAG.Post.PPT.Website.Service();
service.GetDropDownData(dropId,onDone);