PortalSiteMapprovider Code Access Security Requirements

Question

I'm using a portalsitemapprovider object to create my navigation server control.

I've assigned sharepoint object model access and impersonation rights in the controls CAS. However despite this I can't retrieve the child nodes of the root node of the sitemap, they just return an error.

If I change the web app to run under full trust I can retrive the child nodes.

Thus my question is what CAS policies are requried to fully access data in the sitemap provider object, and how come I can access the root node but not it's children currently?

Example code:

PortalSiteMapProvider sp = PortalSiteMapProvider.WebSiteMapProvider;
PortalSiteMapNode rootNode = (PortalSiteMapNode)siteProvider.RootNode;
foreach (SiteMapNode node in rootNode.ChildNodes)
{
    //this loop returns 1 item with title "Error" with no exception thrown. 
}

My Assembly has the following CAS requests:

[assembly: SharePointermission(SecurityAction.RequestMinimum, ObjectModel=true, Impersonate=true)]

With approprite IPermission entries in the deployment manifest. After deploying the web app web.config is updated to WSS_Custom trust level as expected.

Any ideas?

Thanks

Answer 1

You could try using Reflector. This should show you the CAS permissions on that class.

Or use WSPBuilder, which will use reflection to generate the CAS file for you. I recommend this option as you shouldn't need to worry about editing your CAS files again!