80 lines
3.0 KiB
Python
Executable File
80 lines
3.0 KiB
Python
Executable File
#
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# Copyright (c) 2011 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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# Copyright (c) 2023 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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"""Policy Engine For Unified Software Management."""
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from oslo_config import cfg
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from oslo_policy import policy
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base_rules = [
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policy.RuleDefault('admin_in_system_projects',
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'role:admin and (project_name:admin or ' +
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'project_name:services)',
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description='Admin user in system projects.'),
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policy.RuleDefault('default', 'rule:admin_in_system_projects',
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description='Default rule.'),
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]
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CONF = cfg.CONF
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_ENFORCER = None
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def init(policy_file=None, rules=None,
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default_rule=None, use_conf=True, overwrite=True):
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"""Init an Enforcer class.
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oslo policy supports change policy rule dynamically.
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policy.enforce will reload the policy rules if it detects
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the policy files have been touched.
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:param policy_file: Custom policy file to use, if none is
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specified, ``conf.policy_file`` will be
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used.
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:param rules: Default dictionary / Rules to use. It will be
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considered just in the first instantiation. If
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:meth:`load_rules` with ``force_reload=True``,
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:meth:`clear` or :meth:`set_rules` with
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``overwrite=True`` is called this will be overwritten.
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:param default_rule: Default rule to use, conf.default_rule will
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be used if none is specified.
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:param use_conf: Whether to load rules from cache or config file.
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:param overwrite: Whether to overwrite existing rules when reload rules
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from config file.
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"""
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global _ENFORCER
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if not _ENFORCER:
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# https://docs.openstack.org/oslo.policy/latest/user/usage.html
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_ENFORCER = policy.Enforcer(CONF,
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policy_file=policy_file,
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rules=rules,
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default_rule=default_rule,
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use_conf=use_conf,
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overwrite=overwrite)
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_ENFORCER.register_defaults(base_rules)
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return _ENFORCER
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def authorize(rule, target, creds, do_raise=True):
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"""A wrapper around 'authorize' from 'oslo_policy.policy'."""
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init()
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return _ENFORCER.authorize(rule, target, creds, do_raise=do_raise)
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