93 lines
2.8 KiB
Python
93 lines
2.8 KiB
Python
#
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# Copyright 2012 New Dream Network, LLC (DreamHost)
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# Copyright 2014 Hewlett-Packard Company
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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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"""Access Control Lists (ACL's) control access the API server."""
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import pecan
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from ceilometer.openstack.common import policy
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_ENFORCER = None
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def enforce(policy_name, request):
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"""Return the user and project the request should be limited to.
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:param request: HTTP request
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:param policy_name: the policy name to validate authz against.
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"""
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global _ENFORCER
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if not _ENFORCER:
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_ENFORCER = policy.Enforcer()
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_ENFORCER.load_rules()
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rule_method = "telemetry:" + policy_name
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headers = request.headers
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policy_dict = dict()
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policy_dict['roles'] = headers.get('X-Roles', "").split(",")
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policy_dict['target.user_id'] = (headers.get('X-User-Id'))
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policy_dict['target.project_id'] = (headers.get('X-Project-Id'))
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for rule_name in _ENFORCER.rules.keys():
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if rule_method == rule_name:
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if not _ENFORCER.enforce(
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rule_name,
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{},
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policy_dict):
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pecan.core.abort(status_code=403,
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detail='RBAC Authorization Failed')
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# TODO(fabiog): these methods are still used because the scoping part is really
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# convoluted and difficult to separate out.
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def get_limited_to(headers):
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"""Return the user and project the request should be limited to.
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:param headers: HTTP headers dictionary
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:return: A tuple of (user, project), set to None if there's no limit on
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one of these.
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"""
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global _ENFORCER
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if not _ENFORCER:
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_ENFORCER = policy.Enforcer()
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_ENFORCER.load_rules()
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policy_dict = dict()
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policy_dict['roles'] = headers.get('X-Roles', "").split(",")
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policy_dict['target.user_id'] = (headers.get('X-User-Id'))
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policy_dict['target.project_id'] = (headers.get('X-Project-Id'))
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if not _ENFORCER.enforce('segregation',
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{},
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policy_dict):
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return headers.get('X-User-Id'), headers.get('X-Project-Id')
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return None, None
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def get_limited_to_project(headers):
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"""Return the project the request should be limited to.
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:param headers: HTTP headers dictionary
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:return: A project, or None if there's no limit on it.
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"""
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return get_limited_to(headers)[1]
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