56 lines
1.7 KiB
Python
56 lines
1.7 KiB
Python
"""
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(c) Copyright 2015-2016 Hewlett-Packard Enterprise Company L.P.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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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,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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"""
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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 freezer_api.common import exceptions
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from freezer_api.common import policies
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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://github.com/openstack/oslo.policy/blob/a626ad12fe5a3abd49d70e3e5b95589d279ab578/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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ENFORCER = None
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def setup_policy(conf):
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global ENFORCER
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if not ENFORCER:
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ENFORCER = policy.Enforcer(conf)
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ENFORCER.register_defaults(policies.list_rules())
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ENFORCER.load_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 = args[1].env['freezer.context']
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ENFORCER.enforce(rule, {}, ctx.to_dict(), do_raise=True,
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exc=exceptions.AccessForbidden)
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return func(*args, **kwargs)
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return handler
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return decorator
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