Enable lock-down of package creation

[pudo]

• copy exisiting tests, modify authz in setUp, adapt and extend tests
  • Problem: default_role_actions is read by init_db
  • Solution: nuke db after monkey-patching
  • role = model.Role('Reader'), del role.actions[...]

self.PRE_MAUTHZ_RULES = copy(mauthz.default_role_actions) mauthz.default_role_actions.remove((Role.READER, Action.CREATE)) #raise Exception(mauthz.default_role_actions) model.Session.remove() model.repo.rebuild_db()

3. Start from the functional
   • Both the api controllers and wui controllers to do
   • tests/function/test_authz.py extended to check CREATE in lockedDown mode. fails nicely. ​http://bitbucket.org/pudo/ckan-authz2

is_authorized(user, Action.Create, model.Package)

-> Doing this will put 'Package' in the context field of the user_object_role table. This will trigger SQLAlchemy to attempt a join towards PackageRole? in all queries. Since for class-level role assignments there never is a PackageRole? join table entry, this will never return any results.

• cf branch "classes": ​http://bitbucket.org/pudo/ckan-authz2/src/6fd0475e0c66
• No possibility of including "instance" column in inheritance decision.
• Even if this can be cirumvented, it must happen on a per-query level and would require a major re-modelling.

• have a ckan install that would not allow visitors to either list packages or list groups
  • two paths: create the listing, but for each group/pkg decide that you cannot show this
  • lock down the whole page (/package/list)
    • this is class-based, not object-based

is_authorized(user, Action.Package_Create, model.System()) is_authorized(user, Action.Group_Create, model.System())

[Separating Package and Group roles may be useful going forward: PackageEditor?, GroupEditor? etc]

4. Find a standard way to lock down classes
   • possibly add default rows in user_object_role
   • introduce lock-down into controllers: group new, package new, REST equivalents,
   • confirm tests

[pudo]

introduced in ckan-authz2 cset:934b30ec84fd