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#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from horizon.utils import settings as utils_settings
def check(actions, request, target=None):
"""Wrapper of the configurable policy method."""
policy_check = utils_settings.import_setting("POLICY_CHECK_FUNCTION")
if policy_check:
return policy_check(actions, request, target)
return True
class PolicyTargetMixin(object):
"""Mixin that adds the get_policy_target function
policy_target_attrs - a tuple of tuples which defines
the relationship between attributes in the policy
target dict and attributes in the passed datum object.
policy_target_attrs can be overwritten by sub-classes
which do not use the default, so they can neatly define
their policy target information, without overriding the
entire get_policy_target function.
"""
policy_target_attrs = (("project_id", "tenant_id"),
("tenant_id", "tenant_id"),
("user_id", "user_id"),
("domain_id", "domain_id"),
("target.project.domain_id", "domain_id"),
("target.user.domain_id", "domain_id"),
("target.group.domain_id", "domain_id"))
def get_policy_target(self, request, datum=None):
policy_target = {}
for policy_attr, datum_attr in self.policy_target_attrs:
if datum:
policy_target[policy_attr] = getattr(datum, datum_attr, None)
else:
policy_target[policy_attr] = None
return policy_target
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