Support parameterized RBAC

[hsluoyz]

It would be nice to support parameterized RBAC. This would allow the ability to define fine-grained roles and permissions to support things like object level permissions and roles.

Here's a django implementation: https://github.com/dimagi/django-prbac

Hi @F21, Casbin is a new authorization library which supports flexible access control models like ACL, RBAC, ABAC.

In my view, PRBAC is just like ABAC, Attribute-Based Access Control. Because we can view parameters to roles and privileges as the attributes to subjects and objects. Whatever, Casbin is able to support ABAC and RBAC. This is the built-in support, so you don't need to write any code about it. Of course, you can specify your own function to determine the access. Let me know if you have any questions:)