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# Copyright 2009 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
__metaclass__ = type
from zope.component import (
getSiteManager,
queryAdapter,
)
from zope.interface import (
implements,
Interface,
)
from canonical.testing.layers import ZopelessDatabaseLayer
from lp.app.interfaces.security import IAuthorization
from lp.app.security import (
AuthorizationBase,
DelegatedAuthorization,
)
from lp.testing import TestCaseWithFactory
from lp.testing.fakemethod import FakeMethod
def registerFakeSecurityAdapter(interface, permission, adapter=None):
"""Register an instance of FakeSecurityAdapter.
Create a factory for an instance of FakeSecurityAdapter and register
it as an adapter for the given interface and permission name.
"""
if adapter is None:
adapter = FakeSecurityAdapter()
def adapter_factory(adaptee):
return adapter
getSiteManager().registerAdapter(
adapter_factory, (interface,), IAuthorization, permission)
return adapter
class FakeSecurityAdapter(AuthorizationBase):
def __init__(self, adaptee=None):
super(FakeSecurityAdapter, self).__init__(adaptee)
self.checkAuthenticated = FakeMethod()
self.checkUnauthenticated = FakeMethod()
class IDummy(Interface):
"""Marker interface to test forwarding."""
class Dummy:
"""An implementation of IDummy."""
implements(IDummy)
class TestAuthorizationBase(TestCaseWithFactory):
layer = ZopelessDatabaseLayer
def test_checkAccountAuthenticated_for_full_fledged_account(self):
# AuthorizationBase.checkAccountAuthenticated should delegate to
# checkAuthenticated() when the given account can be adapted into an
# IPerson.
full_fledged_account = self.factory.makePerson().account
adapter = FakeSecurityAdapter()
adapter.checkAccountAuthenticated(full_fledged_account)
self.assertVectorEqual(
(1, adapter.checkAuthenticated.call_count),
(0, adapter.checkUnauthenticated.call_count))
def test_checkAccountAuthenticated_for_personless_account(self):
# AuthorizationBase.checkAccountAuthenticated should delegate to
# checkUnauthenticated() when the given account can't be adapted into
# an IPerson.
personless_account = self.factory.makeAccount('Test account')
adapter = FakeSecurityAdapter()
adapter.checkAccountAuthenticated(personless_account)
self.assertVectorEqual(
(0, adapter.checkAuthenticated.call_count),
(1, adapter.checkUnauthenticated.call_count))
def test_forwardCheckAuthenticated_object_changes(self):
# Requesting a check for the same permission on a different object.
permission = self.factory.getUniqueString()
next_adapter = registerFakeSecurityAdapter(
IDummy, permission)
adapter = FakeSecurityAdapter()
adapter.permission = permission
adapter.usedfor = None
adapter.checkPermissionIsRegistered = FakeMethod(result=True)
adapter.forwardCheckAuthenticated(None, Dummy())
self.assertVectorEqual(
(1, adapter.checkPermissionIsRegistered.call_count),
(1, next_adapter.checkAuthenticated.call_count))
def test_forwardCheckAuthenticated_permission_changes(self):
# Requesting a check for a different permission on the same object.
next_permission = self.factory.getUniqueString()
next_adapter = registerFakeSecurityAdapter(
IDummy, next_permission)
adapter = FakeSecurityAdapter(Dummy())
adapter.permission = self.factory.getUniqueString()
adapter.usedfor = IDummy
adapter.checkPermissionIsRegistered = FakeMethod(result=True)
adapter.forwardCheckAuthenticated(None, permission=next_permission)
self.assertVectorEqual(
(1, adapter.checkPermissionIsRegistered.call_count),
(1, next_adapter.checkAuthenticated.call_count))
def test_forwardCheckAuthenticated_both_change(self):
# Requesting a check for a different permission and a different
# object.
next_permission = self.factory.getUniqueString()
next_adapter = registerFakeSecurityAdapter(
IDummy, next_permission)
adapter = FakeSecurityAdapter()
adapter.permission = self.factory.getUniqueString()
adapter.usedfor = None
adapter.checkPermissionIsRegistered = FakeMethod(result=True)
adapter.forwardCheckAuthenticated(None, Dummy(), next_permission)
self.assertVectorEqual(
(1, adapter.checkPermissionIsRegistered.call_count),
(1, next_adapter.checkAuthenticated.call_count))
def test_forwardCheckAuthenticated_no_forwarder(self):
# If the requested forwarding adapter does not exist, return False.
adapter = FakeSecurityAdapter()
adapter.permission = self.factory.getUniqueString()
adapter.usedfor = IDummy
adapter.checkPermissionIsRegistered = FakeMethod(result=True)
self.assertFalse(
adapter.forwardCheckAuthenticated(None, Dummy()))
class FakeDelegatedAuthorization(DelegatedAuthorization):
def __init__(self, obj, permission=None):
super(FakeDelegatedAuthorization, self).__init__(
obj, obj.child_obj, permission)
class FakeForwardedObject:
implements(IDummy)
def __init__(self):
self.child_obj = Dummy()
class TestDelegatedAuthorizationBase(TestCaseWithFactory):
layer = ZopelessDatabaseLayer
def test_DelegatedAuthorization_same_permissions(self):
permission = self.factory.getUniqueString()
fake_obj = FakeForwardedObject()
outer_adapter = FakeDelegatedAuthorization(fake_obj)
outer_adapter.permission = permission
inner_adapter = FakeSecurityAdapter()
inner_adapter.permission = permission
registerFakeSecurityAdapter(IDummy, permission, inner_adapter)
user = object()
outer_adapter.checkAuthenticated(user)
outer_adapter.checkUnauthenticated()
self.assertVectorEqual(
(1, inner_adapter.checkAuthenticated.call_count),
(1, inner_adapter.checkUnauthenticated.call_count))
def test_DelegatedAuthorization_different_permissions(self):
perm_inner = 'inner'
perm_outer = 'outer'
fake_obj = FakeForwardedObject()
outer_adapter = FakeDelegatedAuthorization(fake_obj, perm_inner)
registerFakeSecurityAdapter(IDummy, perm_outer, outer_adapter)
inner_adapter = FakeSecurityAdapter()
inner_adapter.permission = perm_inner
registerFakeSecurityAdapter(IDummy, perm_inner, inner_adapter)
user = object()
adapter = queryAdapter(
FakeForwardedObject(), IAuthorization, perm_outer)
adapter.checkAuthenticated(user)
adapter.checkUnauthenticated()
self.assertVectorEqual(
(1, inner_adapter.checkAuthenticated.call_count),
(1, inner_adapter.checkUnauthenticated.call_count))
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