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#
# Copyright (c) 2001, 2002 Zope Corporation and Contributors.
# All Rights Reserved.
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# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
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"""Test handler for Annotation Principal Permission Manager module.

$Id: test_annotationprincipalpermissionmanager.py 67630 2006-04-27 00:54:03Z jim $
"""
import unittest

from zope.interface import implements
from zope.annotation.attribute import AttributeAnnotations
from zope.annotation.interfaces import IAttributeAnnotatable, IAnnotations
from zope.security.interfaces import IPermission
from zope.security.permission import Permission

from zope.app.testing import ztapi
from zope.app.security.principalregistry import principalRegistry
from zope.app.security.settings import Allow, Deny, Unset
from zope.app.testing.placelesssetup import PlacelessSetup

from zope.app.securitypolicy.principalpermission \
    import AnnotationPrincipalPermissionManager

class Manageable(object):
    implements(IAttributeAnnotatable)

class Test(PlacelessSetup, unittest.TestCase):

    def setUp(self):
        super(Test, self).setUp()
        ztapi.provideAdapter(
            IAttributeAnnotatable, IAnnotations,
            AttributeAnnotations)

    def _make_principal(self, id=None, title=None):
        p = principalRegistry.definePrincipal(
            id or 'APrincipal',
            title or 'A Principal',
            login = id or 'APrincipal')
        return p.id

    def testUnboundPrincipalPermission(self):
        manager = AnnotationPrincipalPermissionManager(Manageable())
        ztapi.provideUtility(IPermission, Permission('APerm', 'title'), 'APerm')
        permission = 'APerm'
        principal = self._make_principal()
        self.assertEqual(manager.getPrincipalsForPermission(permission), [])
        self.assertEqual(manager.getPermissionsForPrincipal(principal), [])

    def testPrincipalPermission(self):
        manager = AnnotationPrincipalPermissionManager(Manageable())
        ztapi.provideUtility(IPermission, Permission('APerm', 'title'), 'APerm')
        permission = 'APerm'
        principal = self._make_principal()

        # check that an allow permission is saved correctly
        manager.grantPermissionToPrincipal(permission, principal)
        self.assertEqual(manager.getPrincipalsForPermission(permission),
                         [(principal, Allow)])
        self.assertEqual(manager.getPermissionsForPrincipal(principal),
                         [(permission, Allow)])

        # check that the allow permission is removed.
        manager.unsetPermissionForPrincipal(permission, principal)
        self.assertEqual(manager.getPrincipalsForPermission(permission), [])
        self.assertEqual(manager.getPermissionsForPrincipal(principal), [])

        # now put a deny in there, check it's set.
        manager.denyPermissionToPrincipal(permission, principal)
        self.assertEqual(manager.getPrincipalsForPermission(permission),
                         [(principal, Deny)])
        self.assertEqual(manager.getPermissionsForPrincipal(principal),
                         [(permission, Deny)])

        # test for deny followed by allow . The latter should override.
        manager.grantPermissionToPrincipal(permission, principal)
        self.assertEqual(manager.getPrincipalsForPermission(permission),
                         [(principal, Allow)])
        self.assertEqual(manager.getPermissionsForPrincipal(principal),
                         [(permission, Allow)])

        # check that allow followed by allow is just a single allow.
        manager.grantPermissionToPrincipal(permission, principal)
        self.assertEqual(manager.getPrincipalsForPermission(permission),
                         [(principal, Allow)])
        self.assertEqual(manager.getPermissionsForPrincipal(principal),
                         [(permission, Allow)])

        # check that two unsets in a row quietly ignores the second one.
        manager.unsetPermissionForPrincipal(permission, principal)
        manager.unsetPermissionForPrincipal(permission, principal)
        self.assertEqual(manager.getPrincipalsForPermission(permission), [])
        self.assertEqual(manager.getPermissionsForPrincipal(principal), [])

        # check the result of getSetting() when it's empty.
        self.assertEqual(manager.getSetting(permission, principal), Unset)

        # check the result of getSetting() when it's allowed.
        manager.grantPermissionToPrincipal(permission, principal)
        self.assertEqual(manager.getSetting(permission, principal), Allow)

        # check the result of getSetting() when it's denied.
        manager.denyPermissionToPrincipal(permission, principal)
        self.assertEqual(manager.getSetting(permission, principal), Deny)

    def testManyPermissionsOnePrincipal(self):
        manager = AnnotationPrincipalPermissionManager(Manageable())
        ztapi.provideUtility(
            IPermission, Permission('Perm One', 'title'), 'Perm One')
        perm1 = 'Perm One' 
        ztapi.provideUtility(
            IPermission, Permission('Perm Two', 'title'), 'Perm Two')
        perm2 = 'Perm Two'
        prin1 = self._make_principal()
        manager.grantPermissionToPrincipal(perm1, prin1)
        manager.grantPermissionToPrincipal(perm2, prin1)
        perms = manager.getPermissionsForPrincipal(prin1)
        self.assertEqual(len(perms), 2)
        self.failUnless((perm1, Allow) in perms)
        self.failUnless((perm2, Allow) in perms)
        manager.denyPermissionToPrincipal(perm2, prin1)
        perms = manager.getPermissionsForPrincipal(prin1)
        self.assertEqual(len(perms), 2)
        self.failUnless((perm1, Allow) in perms)
        self.failUnless((perm2, Deny) in perms)

    def testManyPrincipalsOnePermission(self):
        manager = AnnotationPrincipalPermissionManager(Manageable())
        ztapi.provideUtility(
            IPermission, Permission('Perm One', 'title'), 'Perm One')
        perm1 = 'Perm One' 
        prin1 = self._make_principal()
        prin2 = self._make_principal('Principal 2', 'Principal Two')
        manager.grantPermissionToPrincipal(perm1, prin1)
        manager.denyPermissionToPrincipal(perm1, prin2)
        principals = manager.getPrincipalsForPermission(perm1)
        self.assertEqual(len(principals), 2)
        self.failUnless((prin1, Allow) in principals)
        self.failUnless((prin2, Deny) in principals)

def test_suite():
    loader=unittest.TestLoader()
    return loader.loadTestsFromTestCase(Test)

if __name__=='__main__':
    unittest.TextTestRunner().run(test_suite())
