126 lines
4.8 KiB
Python
126 lines
4.8 KiB
Python
# 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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from oslo_context import context as base_context
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from oslo_utils import encodeutils
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from senlin.common import policy
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from senlin.drivers import base as driver_base
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class RequestContext(base_context.RequestContext):
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"""Stores information about the security context.
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The context encapsulates information related to the user accessing the
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system, as well as additional request information.
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"""
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def __init__(self, auth_token=None, user_id=None, project_id=None,
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domain_id=None, user_domain_id=None, project_domain_id=None,
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is_admin=None, read_only=False, show_deleted=False,
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request_id=None, auth_url=None, trusts=None,
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user_name=None, project_name=None, domain_name=None,
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user_domain_name=None, project_domain_name=None,
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auth_token_info=None, region_name=None, roles=None,
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password=None, api_version=None, **kwargs):
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"""Initializer of request context."""
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# We still have 'tenant' param because oslo_context still use it.
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super(RequestContext, self).__init__(
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auth_token=auth_token, user_id=user_id, project_id=project_id,
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domain_id=domain_id, user_domain_id=user_domain_id,
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project_domain_id=project_domain_id,
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read_only=read_only, show_deleted=show_deleted,
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request_id=request_id,
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roles=roles)
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# request_id might be a byte array
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self.request_id = encodeutils.safe_decode(self.request_id)
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self.auth_url = auth_url
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self.trusts = trusts
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self.user_id = user_id
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self.user_name = user_name
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self.project_id = project_id
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self.project_name = project_name
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self.domain_id = domain_id
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self.domain_name = domain_name
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self.user_domain_name = user_domain_name
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self.project_domain_name = project_domain_name
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self.auth_token_info = auth_token_info
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self.region_name = region_name
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self.password = password
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self.api_version = api_version
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# Check user is admin or not
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if is_admin is None:
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self.is_admin = policy.enforce(self, 'context_is_admin',
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target={'project': self.project_id},
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do_raise=False)
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else:
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self.is_admin = is_admin
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def to_dict(self):
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# This to_dict() method is not producing 'project_id', 'user_id' or
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# 'domain_id' which can be used in from_dict(). This is the reason
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# why we are keeping our own copy of user_id, project_id and
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# domain_id.
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d = super(RequestContext, self).to_dict()
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d.update({
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'auth_url': self.auth_url,
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'auth_token_info': self.auth_token_info,
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'user_id': self.user_id,
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'user_name': self.user_name,
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'user_domain_name': self.user_domain_name,
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'project_id': self.project_id,
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'project_name': self.project_name,
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'project_domain_name': self.project_domain_name,
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'domain_id': self.domain_id,
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'domain_name': self.domain_name,
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'trusts': self.trusts,
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'region_name': self.region_name,
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'password': self.password,
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'api_version': self.api_version,
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})
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return d
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@classmethod
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def from_dict(cls, values):
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return cls(**values)
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def get_service_credentials(**kwargs):
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"""An abstraction layer for getting service credential.
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There could be multiple cloud backends for senlin to use. This
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abstraction layer provides an indirection for senlin to get the
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credentials of 'senlin' user on the specific cloud. By default,
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this credential refers to the credentials built for keystone middleware
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in an OpenStack cloud.
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"""
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identity_service = driver_base.SenlinDriver().identity
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return identity_service.get_service_credentials(**kwargs)
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def get_service_context(**kwargs):
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"""Get a customized service context."""
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identity_service = driver_base.SenlinDriver().identity
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creds = identity_service.get_service_credentials(**kwargs)
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return RequestContext.from_dict(creds)
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def get_admin_context():
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"""Create an administrator context."""
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return RequestContext(is_admin=True)
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