# Path: tutelary/engine.py
# class Object(EscapeSeparated):
#     """Objects are represented by slash-separated sequences of elements
#     (e.g. ``Cadasta/Batangas/parcel/123``, ``H4H/PaP/party/118``) with
#     wildcard elements indicated by ``*``
#     (e.g. ``Cadasta/*/parcel/*``).  Slashes can be backslash-escaped,
#     as can backslashes (e.g. ``Cadasta/Village-X\/Y/parcel/943``).
# 
#     """
#     separator = '/'
# 
# class Action(SimpleSeparated):
#     """Actions are represented by period-separated sequences of elements
#     (e.g. ``parcel.edit``, ``admin.assign-role``) with wildcard
#     elements indicated by ``*`` (e.g. ``party.*``).  A list of
#     *registered* actions is maintained to support permissions set
#     queries to find the set of actions that are permitted on a
#     specified object pattern.
# 
#     """
#     separator = '.'
# 
#     registered = set()
# 
#     def register(action):
#         """Action registration is used to support generating lists of
#         permitted actions from a permission set and an object pattern.
#         Only registered actions will be returned by such queries.
# 
#         """
#         if isinstance(action, str):
#             Action.register(Action(action))
#         elif isinstance(action, Action):
#             Action.registered.add(action)
#         else:
#             for a in action:
#                 Action.register(a)
# 
# Path: tutelary/models.py
# def check_perms(user, actions, objs, method=None):
#     ensure_permission_set_tree_cached(user)
#     if actions is False:
#         return False
#     if actions is not None:
#         for a in actions:
#             for o in objs:
#                 test_obj = None
#                 if o is not None:
#                     test_obj = o.get_permissions_object(a)
#                 if not user.has_perm(a, test_obj):
#                     return False
#     return True
# 
# Path: tutelary/exceptions.py
# class DecoratorException(TutelaryException):
#     """Exception raised if the ``permissioned_model`` decorator is used
#     without the required ``TutelaryMeta`` class member being included
#     in the model.
# 
#     """
#     def __init__(self, decorator, msg):
#         super().__init__(
#             "error expanding decorator '" + decorator + "': " + msg
#         )
# 
# class PermissionObjectException(TutelaryException):
#     """Exception raised by the ``permissioned_model`` decorator if a
#     ``permissions_object`` property in the ``actions`` list refers to
#     a non-existent model field, or to a field that is not a foreign
#     key or one-to-one relation field.
# 
#     """
#     def __init__(self, prop):
#         super().__init__(
#             "invalid permissions_object property '" + prop +
#             "' in permissioned_model"
#         )


from functools import reduce, wraps
from django.core.exceptions import PermissionDenied
from django.db import models
from django.utils.decorators import available_attrs
from .engine import Object, Action
from .models import check_perms
from .exceptions import DecoratorException, PermissionObjectException
            if perm_type is None or path_fields is None or actions is None:
                raise DecoratorException(
                    'permissioned_model',
                    ("missing argument: all of perm_type, path_fields and " +
                     "actions must be supplied")
                )
            added = True
            cls.TutelaryMeta = type('TutelaryMeta', (object,),
                                    dict(perm_type=perm_type,
                                         path_fields=path_fields,
                                         actions=actions))
        cls.TutelaryMeta.pfs = ([cls.TutelaryMeta.perm_type] +
                                get_path_fields(cls))
        perms_objs = {}
        for a in cls.TutelaryMeta.actions:
            an = a
            ap = {}
            if isinstance(a, tuple):
                an = a[0]
                ap = a[1]
            Action.register(an)
            if isinstance(ap, dict) and 'permissions_object' in ap:
                po = ap['permissions_object']
                if po is not None:
                    try:
                        t = cls._meta.get_field(po).__class__
                        if t not in [models.ForeignKey,
                                     models.OneToOneField]:
                            raise PermissionObjectException(po)
                    except:

# Path: tutelary/engine.py
# class Object(EscapeSeparated):
#     """Objects are represented by slash-separated sequences of elements
#     (e.g. ``Cadasta/Batangas/parcel/123``, ``H4H/PaP/party/118``) with
#     wildcard elements indicated by ``*``
#     (e.g. ``Cadasta/*/parcel/*``).  Slashes can be backslash-escaped,
#     as can backslashes (e.g. ``Cadasta/Village-X\/Y/parcel/943``).
# 
#     """
#     separator = '/'
# 
# class Action(SimpleSeparated):
#     """Actions are represented by period-separated sequences of elements
#     (e.g. ``parcel.edit``, ``admin.assign-role``) with wildcard
#     elements indicated by ``*`` (e.g. ``party.*``).  A list of
#     *registered* actions is maintained to support permissions set
#     queries to find the set of actions that are permitted on a
#     specified object pattern.
# 
#     """
#     separator = '.'
# 
#     registered = set()
# 
#     def register(action):
#         """Action registration is used to support generating lists of
#         permitted actions from a permission set and an object pattern.
#         Only registered actions will be returned by such queries.
# 
#         """
#         if isinstance(action, str):
#             Action.register(Action(action))
#         elif isinstance(action, Action):
#             Action.registered.add(action)
#         else:
#             for a in action:
#                 Action.register(a)
# 
# Path: tutelary/models.py
# def check_perms(user, actions, objs, method=None):
#     ensure_permission_set_tree_cached(user)
#     if actions is False:
#         return False
#     if actions is not None:
#         for a in actions:
#             for o in objs:
#                 test_obj = None
#                 if o is not None:
#                     test_obj = o.get_permissions_object(a)
#                 if not user.has_perm(a, test_obj):
#                     return False
#     return True
# 
# Path: tutelary/exceptions.py
# class DecoratorException(TutelaryException):
#     """Exception raised if the ``permissioned_model`` decorator is used
#     without the required ``TutelaryMeta`` class member being included
#     in the model.
# 
#     """
#     def __init__(self, decorator, msg):
#         super().__init__(
#             "error expanding decorator '" + decorator + "': " + msg
#         )
# 
# class PermissionObjectException(TutelaryException):
#     """Exception raised by the ``permissioned_model`` decorator if a
#     ``permissions_object`` property in the ``actions`` list refers to
#     a non-existent model field, or to a field that is not a foreign
#     key or one-to-one relation field.
# 
#     """
#     def __init__(self, prop):
#         super().__init__(
#             "invalid permissions_object property '" + prop +
#             "' in permissioned_model"
#         )


# Path: tutelary/decorators.py
from functools import reduce, wraps
from django.core.exceptions import PermissionDenied
from django.db import models
from django.utils.decorators import available_attrs
from .engine import Object, Action
from .models import check_perms
from .exceptions import DecoratorException, PermissionObjectException

            if perm_type is None or path_fields is None or actions is None:
                raise DecoratorException(
                    'permissioned_model',
                    ("missing argument: all of perm_type, path_fields and " +
                     "actions must be supplied")
                )
            added = True
            cls.TutelaryMeta = type('TutelaryMeta', (object,),
                                    dict(perm_type=perm_type,
                                         path_fields=path_fields,
                                         actions=actions))
        cls.TutelaryMeta.pfs = ([cls.TutelaryMeta.perm_type] +
                                get_path_fields(cls))
        perms_objs = {}
        for a in cls.TutelaryMeta.actions:
            an = a
            ap = {}
            if isinstance(a, tuple):
                an = a[0]
                ap = a[1]
            Action.register(an)
            if isinstance(ap, dict) and 'permissions_object' in ap:
                po = ap['permissions_object']
                if po is not None:
                    try:
                        t = cls._meta.get_field(po).__class__
                        if t not in [models.ForeignKey,
                                     models.OneToOneField]:
                            raise PermissionObjectException(po)
                    except:

                        raise PermissionObjectException(po)