Created
January 9, 2017 17:47
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| (craton) ubuntu@ubuntu-xenial:~/craton/craton/common$ python3.5 policy.py | |
| { | |
| "example:get_http": "http:http://www.example.com", | |
| "example:denied": "false:false", | |
| "example:my_file": "(role:compute_admin or project_id:%(project_id)s)", | |
| "example:lowercase_admin": "(role:admin or role:sysadmin)", | |
| "example:early_and_fail": "(false:false and rule:true)", | |
| "true": "", | |
| "example:uppercase_admin": "(role:ADMIN or role:sysadmin)", | |
| "example:allowed": "", | |
| "example:early_or_success": "(rule:true or false:false)" | |
| } | |
| Traceback (most recent call last): | |
| File "policy.py", line 53, in <module> | |
| ENFORCER.enforce(lowercase_action, target, credentials, do_raise=True) | |
| File "/home/ubuntu/craton/lib/python3.5/site-packages/oslo_policy/policy.py", line 735, in enforce | |
| raise PolicyNotAuthorized(rule, target, creds) | |
| oslo_policy.policy.PolicyNotAuthorized: {} is disallowed by policy rule example:lowercase_admin with {} |
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| (craton) ubuntu@ubuntu-xenial:~/craton/craton/common$ cat policy.py | |
| # Copyright (c) 2015 OpenStack Foundation | |
| # All Rights Reserved. | |
| # | |
| # 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. | |
| """Policy Engine for craton.""" | |
| from oslo_config import cfg | |
| from oslo_policy import policy as common_policy | |
| from craton import exceptions | |
| CONF = cfg.CONF | |
| ENFORCER = common_policy.Enforcer(CONF) | |
| rules = { | |
| "true": [], | |
| "example:allowed": [], | |
| "example:denied": [["false:false"]], | |
| "example:get_http": [["http:http://www.example.com"]], | |
| "example:my_file": [["role:compute_admin"], | |
| ["project_id:%(project_id)s"]], | |
| "example:early_and_fail": [["false:false", "rule:true"]], | |
| "example:early_or_success": [["rule:true"], ["false:false"]], | |
| "example:lowercase_admin": [["role:admin"], ["role:sysadmin"]], | |
| "example:uppercase_admin": [["role:ADMIN"], ["role:sysadmin"]], | |
| } | |
| these_rules = common_policy.Rules.from_dict(rules) | |
| print(these_rules) | |
| ENFORCER.set_rules(these_rules) | |
| ENFORCER.check_rules() | |
| admin_credentials = {'roles': ['AdMiN']} | |
| credentials = {} | |
| target = {} | |
| lowercase_action = "example:lowercase_admin" | |
| #ENFORCER.authorize() | |
| ENFORCER.enforce(lowercase_action, target, admin_credentials, do_raise=True) | |
| ENFORCER.enforce(lowercase_action, target, credentials, do_raise=True) |
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| (craton) ubuntu@ubuntu-xenial:~/craton/craton/common$ cat t-policy-using-role-assignments.py | |
| from oslo_config import cfg | |
| from oslo_policy import policy as common_policy | |
| CONF = cfg.CONF # should just be an empty config file | |
| ENFORCER = common_policy.Enforcer(CONF) | |
| rules = { | |
| "fleet:audit": "role:admin or (principal:%(principal)s and role_:%(role_)s and resource:%(resource)s)" | |
| } | |
| these_rules = common_policy.Rules.from_dict(rules) | |
| print(these_rules) | |
| ENFORCER.set_rules(these_rules) | |
| ENFORCER.check_rules() | |
| credentials = {'roles': ['user'], 'principal': 'foo', 'role_': 'fleet:audit', 'resource': 'baz'} | |
| target = {'principal':'foo', 'role_':'fleet:audit', 'resource':'baz'} | |
| ENFORCER.enforce("fleet:audit", target, credentials, do_raise=True) |
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