ee85077a98
The parameter documentation didn't make it into the generated docs so nobody could use this class. Change-Id: If264804f513b07b1253bd73698ef14891f94c0a9
116 lines
4.1 KiB
Python
116 lines
4.1 KiB
Python
# 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.
|
|
|
|
import abc
|
|
|
|
import six
|
|
|
|
from keystoneauth1.identity.v3 import base
|
|
from keystoneauth1.identity.v3 import token
|
|
|
|
__all__ = ('FederationBaseAuth',)
|
|
|
|
|
|
@six.add_metaclass(abc.ABCMeta)
|
|
class _Rescoped(base.BaseAuth):
|
|
"""A plugin that is always going to go through a rescope process.
|
|
|
|
The original keystone plugins could simply pass a project or domain to
|
|
along with the credentials and get a scoped token. For federation, K2K and
|
|
newer mechanisms we always get an unscoped token first and then rescope.
|
|
|
|
This is currently not public as it's generally an abstraction of a flow
|
|
used by plugins within keystoneauth1.
|
|
|
|
It also cannot go in base as it depends on token.Token for rescoping which
|
|
would create a circular dependency.
|
|
"""
|
|
|
|
rescoping_plugin = token.Token
|
|
|
|
def _get_scoping_data(self):
|
|
return {'trust_id': self.trust_id,
|
|
'domain_id': self.domain_id,
|
|
'domain_name': self.domain_name,
|
|
'project_id': self.project_id,
|
|
'project_name': self.project_name,
|
|
'project_domain_id': self.project_domain_id,
|
|
'project_domain_name': self.project_domain_name}
|
|
|
|
def get_auth_ref(self, session, **kwargs):
|
|
"""Authenticate retrieve token information.
|
|
|
|
This is a multi-step process where a client does federated authn
|
|
receives an unscoped token.
|
|
|
|
If an unscoped token is successfully received and scoping information
|
|
is present then the token is rescoped to that target.
|
|
|
|
:param session: a session object to send out HTTP requests.
|
|
:type session: keystoneauth1.session.Session
|
|
|
|
:returns: a token data representation
|
|
:rtype: :py:class:`keystoneauth1.access.AccessInfo`
|
|
|
|
"""
|
|
auth_ref = self.get_unscoped_auth_ref(session)
|
|
scoping = self._get_scoping_data()
|
|
|
|
if any(scoping.values()):
|
|
token_plugin = self.rescoping_plugin(self.auth_url,
|
|
token=auth_ref.auth_token,
|
|
**scoping)
|
|
|
|
auth_ref = token_plugin.get_auth_ref(session)
|
|
|
|
return auth_ref
|
|
|
|
@abc.abstractmethod
|
|
def get_unscoped_auth_ref(self, session, **kwargs):
|
|
"""Fetch unscoped federated token."""
|
|
|
|
|
|
class FederationBaseAuth(_Rescoped):
|
|
"""Federation authentication plugin.
|
|
|
|
:param auth_url: URL of the Identity Service
|
|
:type auth_url: string
|
|
:param identity_provider: name of the Identity Provider the client
|
|
will authenticate against. This parameter
|
|
will be used to build a dynamic URL used to
|
|
obtain unscoped OpenStack token.
|
|
:type identity_provider: string
|
|
:param protocol: name of the protocol the client will authenticate
|
|
against.
|
|
:type protocol: string
|
|
|
|
"""
|
|
|
|
def __init__(self, auth_url, identity_provider, protocol, **kwargs):
|
|
super(FederationBaseAuth, self).__init__(auth_url=auth_url, **kwargs)
|
|
self.identity_provider = identity_provider
|
|
self.protocol = protocol
|
|
|
|
@property
|
|
def federated_token_url(self):
|
|
"""Full URL where authorization data is sent."""
|
|
values = {
|
|
'host': self.auth_url.rstrip('/'),
|
|
'identity_provider': self.identity_provider,
|
|
'protocol': self.protocol
|
|
}
|
|
url = ("%(host)s/OS-FEDERATION/identity_providers/"
|
|
"%(identity_provider)s/protocols/%(protocol)s/auth")
|
|
url = url % values
|
|
|
|
return url
|