56 lines
1.7 KiB
Python
56 lines
1.7 KiB
Python
#
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# Copyright (c) 2014 Mirantis Inc.
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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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"""Policy Engine For Sahara"""
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import functools
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from oslo_config import cfg
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from oslo_policy import opts
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from oslo_policy import policy
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from sahara.common import policies
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from sahara import context
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from sahara import exceptions
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ENFORCER = None
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# TODO(gmann): Remove setting the default value of config policy_file
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# once oslo_policy change the default value to 'policy.yaml'.
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# https://opendev.org/openstack/oslo.policy/src/commit/d8534850d9238e85ae0ea55bf2ac8583681fdb2b/oslo_policy/opts.py#L49
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DEFAULT_POLICY_FILE = 'policy.yaml'
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opts.set_defaults(cfg.CONF, DEFAULT_POLICY_FILE)
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def setup_policy():
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global ENFORCER
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ENFORCER = policy.Enforcer(cfg.CONF)
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ENFORCER.register_defaults(policies.list_rules())
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def enforce(rule):
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def decorator(func):
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@functools.wraps(func)
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def handler(*args, **kwargs):
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ctx = context.ctx()
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ENFORCER.authorize(rule, {}, ctx.to_dict(), do_raise=True,
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exc=exceptions.Forbidden)
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return func(*args, **kwargs)
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return handler
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return decorator
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