[jboss-user] [J2EE Design Patterns] - Service EJB to DAO EJB Design Issues

[mattmcgrillis]

I'm stumped...

I have a JSF which calls a serviceEJB which in turn calls a daoEJB. Now when serviceEJB calls getUserPrinciple it returns the principle correctly. serviceEJB then calls methodA of daoEJB with a @RunAs set to “SERVICE” (to stop the JSF web client being able to call daoEJB directly - with RolesAllowed set on the DAO). Though when I call getUserPrinciple within daoEJB gets a caller principle on ‘anonymous’ instead of the correct principle set by JAAS.

Now you can use @RunAsPrincipal... to manually set the principal when the dao EJB is delared... but as far as I can see, there's no way of passing in the original principal

Surely there's a hole in the spec if this anyone using a Service-DAO ejb pattern can't use caller principle in the DAO?

I can't be the first to of hit this type of problem, whereby I need to use 'run as' to change the ROLE in the service so the DAO can't be called directly(by using RolesAllowed)...

I just don't understand why it is acceptable to change the Principle? Surely it should be fine to let that be set by JAAS and maintained, and just the role changed by 'run as' rather than changing the role (as expected) but also deleting the principle?

Does anyone know if there is another way round getting the DAOs not be called by the webclient without using RunAs?


I could remove the RunAs though this screws up my security model as in theory my JSF beans could call my dao EJBs directly (which I don't want)

Or ideally... does anyone know of any way of retaining the orignal principal set by jaas when an ejb calls another ejb when @RunAs is being set???

Thanks

Matt


View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4216481#4216481

Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4216481