Web Service Method Call Fails

Pete OHanlon

I actually meant you'd need to write out a log file (using log4net). The permissions I was talking about was the permissions on the actual service itself.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

dan sh

John Simmons / outlaw programmer wrote:

I found one guy that said he moved to silverlight/dotNet 4, and all his problems magically went away. Unfortunately, that's not an option for me.

Yes. I read that too. Since I do not know anything about Silverlight, I cannot use your configuration to try and find what's wrong. I guess MS tech support is the last resort if nothing goes right.

realJSOP

Well, I fingered out how to get the inner exception (and wrote a tip/trick about it :) ), and for your reading pleasure, here it is: 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://myUrl/FMDash3.svc/secure'. 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(IA

realJSOP

I managed to retrieve the inner exception, and posted it as a reply to Pete's last comment.

.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001

Pete OHanlon

Are your clientaccesspolicy.xml or crossdomain.xml files visible? Have a read of this[^].

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

realJSOP

Visible? I have a ClientAccessPolicy.xml file in my web services's folder:

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

I also have a CrossDomain.xml, but I'm not really sure where to put it, so I have it in a few places.

<?xml version="1.0" encoding="utf-8" ?>
<cross-domain-policy>
<allow-http-request-headers-from domain="*" headers="*"/>
<strong>
<allow-http-request-headers-from domain="*" headers="SOAPAction" />
</strong>
<allow-https-request-headers-from domain="*" headers="*"/>
<strong>
<allow-https-request-headers-from domain="*" headers="SOAPAction" />
</strong>
</cross-domain-policy>

Where *should* I put it?

.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001

Pete OHanlon

You only need the ClientAccessPolicy.xml file. I notice from the exception that you are using https - in the allow-from section, you need to add

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

realJSOP

doesn't this accomplish the same thing: <domain uri=”*” />

.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001

Pete OHanlon

No.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

realJSOP

Ok then, but wouldn't it be more correct to do this?

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

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

</access-policy>

.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001

Pete OHanlon

If this is the way your site is set up, then yes. Alternatively, you could put both the https://* and http://* in the first allow-from if you don't have to worry about the secure path. The reason you have to add the https://* is because SL requires that you explicitly opt-in to secure services.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

realJSOP

Well, I went ahead and made that change, and it still gives me the same exception. :/

.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001

Ian McCaul

I thought the crossdomain xml files had to be at the root of the site?

realJSOP

I had it there, and in the silverlight app's folder (just in case). It didn't seem to make a difference.

.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001

Pete OHanlon

I'd offer to test it for you but I'm running SL4 now.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

realJSOP

I saw a comment on the web that stated moving to SL4 fixes this problem. I don't have that option. I'm going to try putting the SL app on the same server as the service and seeing if that will fix it. EDIT ======== Nope. In fact in some ways, it made it worse...

.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001

modified on Wednesday, June 9, 2010 2:59 PM

Pete OHanlon · modified on Wednesday, June 9, 2010 2:59 PM

What happens if you drop it out of https into http?

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

realJSOP

I can't. It all has to stay https (DoD network).

.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001

Pete OHanlon

Even for testing? Is there not an internal test rig that could be used for this?

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

realJSOP

Unfortunately no. I do know for a fact that the app/web service work fine on my dev box. However, we haven't been able to get it to work when deployed. Because we're on a DoD network, it all has to be through https.

.45 ACP - because shooting twice is just silly
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001