322 lines
8.9 KiB
Python
322 lines
8.9 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2013 OpenStack Foundation
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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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"""Extensions supporting OAuth1."""
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from __future__ import absolute_import
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import abc
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import oauthlib.common
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from oauthlib import oauth1
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import six
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import uuid
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from keystone.common import dependency
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from keystone.common import extension
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from keystone.common import manager
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from keystone import config
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from keystone import exception
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RequestValidator = oauth1.RequestValidator
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Client = oauth1.Client
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AccessTokenEndpoint = oauth1.AccessTokenEndpoint
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ResourceEndpoint = oauth1.ResourceEndpoint
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AuthorizationEndpoint = oauth1.AuthorizationEndpoint
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SIG_HMAC = oauth1.SIGNATURE_HMAC
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RequestTokenEndpoint = oauth1.RequestTokenEndpoint
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oRequest = oauthlib.common.Request
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class Token(object):
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def __init__(self, key, secret):
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self.key = key
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self.secret = secret
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self.verifier = None
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def set_verifier(self, verifier):
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self.verifier = verifier
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CONF = config.CONF
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def token_generator(*args, **kwargs):
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return uuid.uuid4().hex
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EXTENSION_DATA = {
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'name': 'OpenStack OAUTH1 API',
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'namespace': 'http://docs.openstack.org/identity/api/ext/'
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'OS-OAUTH1/v1.0',
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'alias': 'OS-OAUTH1',
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'updated': '2013-07-07T12:00:0-00:00',
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'description': 'OpenStack OAuth 1.0a Delegated Auth Mechanism.',
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'links': [
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{
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'rel': 'describedby',
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# TODO(dolph): link needs to be revised after
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# bug 928059 merges
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'type': 'text/html',
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'href': 'https://github.com/openstack/identity-api',
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}
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]}
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extension.register_admin_extension(EXTENSION_DATA['alias'], EXTENSION_DATA)
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extension.register_public_extension(EXTENSION_DATA['alias'], EXTENSION_DATA)
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def filter_consumer(consumer_ref):
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"""Filter out private items in a consumer dict.
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'secret' is never returned.
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:returns: consumer_ref
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"""
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if consumer_ref:
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consumer_ref = consumer_ref.copy()
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consumer_ref.pop('secret', None)
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return consumer_ref
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def filter_token(access_token_ref):
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"""Filter out private items in an access token dict.
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'access_secret' is never returned.
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:returns: access_token_ref
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"""
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if access_token_ref:
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access_token_ref = access_token_ref.copy()
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access_token_ref.pop('access_secret', None)
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return access_token_ref
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def rebuild_url(path):
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endpoint = CONF.public_endpoint % CONF
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# allow a missing trailing slash in the config
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if endpoint[-1] != '/':
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endpoint += '/'
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url = endpoint + 'v3'
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return url + path
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def get_oauth_headers(headers):
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parameters = {}
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# The incoming headers variable is your usual heading from context
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# In an OAuth signed req, where the oauth variables are in the header,
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# they with the key 'Authorization'.
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if headers and 'Authorization' in headers:
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# A typical value for Authorization is seen below
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# 'OAuth realm="", oauth_body_hash="2jm%3D", oauth_nonce="14475435"
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# along with other oauth variables, the 'OAuth ' part is trimmed
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# to split the rest of the headers.
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auth_header = headers['Authorization']
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params = oauth1.rfc5849.utils.parse_authorization_header(auth_header)
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parameters.update(dict(params))
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return parameters
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def extract_non_oauth_params(query_string):
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params = oauthlib.common.extract_params(query_string)
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return dict([(k, v) for k, v in params if not k.startswith('oauth_')])
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@dependency.provider('oauth_api')
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class Manager(manager.Manager):
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"""Default pivot point for the OAuth1 backend.
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See :mod:`keystone.common.manager.Manager` for more details on how this
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dynamically calls the backend.
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"""
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def __init__(self):
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super(Manager, self).__init__(CONF.oauth1.driver)
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@six.add_metaclass(abc.ABCMeta)
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class Driver(object):
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"""Interface description for an OAuth1 driver."""
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@abc.abstractmethod
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def create_consumer(self, consumer_ref):
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"""Create consumer.
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:param consumer_ref: consumer ref with consumer name
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:type consumer_ref: dict
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:returns: consumer_ref
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def update_consumer(self, consumer_id, consumer_ref):
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"""Update consumer.
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:param consumer_id: id of consumer to update
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:type consumer_ref: string
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:param consumer_ref: new consumer ref with consumer name
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:type consumer_ref: dict
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:returns: consumer_ref
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def list_consumers(self):
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"""List consumers.
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:returns: list of consumers
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def get_consumer(self, consumer_id):
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"""Get consumer, returns the consumer id (key)
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and description.
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:param consumer_id: id of consumer to get
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:type consumer_ref: string
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:returns: consumer_ref
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def get_consumer_with_secret(self, consumer_id):
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"""Like get_consumer() but returned consumer_ref includes
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the consumer secret.
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Secrets should only be shared upon consumer creation; the
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consumer secret is required to verify incoming OAuth requests.
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:param consumer_id: id of consumer to get
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:type consumer_ref: string
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:returns: consumer_ref
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def delete_consumer(self, consumer_id):
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"""Delete consumer.
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:param consumer_id: id of consumer to get
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:type consumer_ref: string
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:returns: None.
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def list_access_tokens(self, user_id):
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"""List access tokens.
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:param user_id: search for access tokens authorized by given user id
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:type user_id: string
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:returns: list of access tokens the user has authorized
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def delete_access_token(self, user_id, access_token_id):
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"""Delete access token.
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:param user_id: authorizing user id
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:type user_id: string
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:param access_token_id: access token to delete
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:type access_token_id: string
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:returns: None
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def create_request_token(self, consumer_id, requested_project,
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request_token_duration):
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"""Create request token.
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:param consumer_id: the id of the consumer
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:type consumer_id: string
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:param requested_project_id: requested project id
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:type requested_project_id: string
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:param request_token_duration: duration of request token
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:type request_token_duration: string
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:returns: request_token_ref
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def get_request_token(self, request_token_id):
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"""Get request token.
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:param request_token_id: the id of the request token
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:type request_token_id: string
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:returns: request_token_ref
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def get_access_token(self, access_token_id):
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"""Get access token.
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:param access_token_id: the id of the access token
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:type access_token_id: string
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:returns: access_token_ref
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def authorize_request_token(self, request_id, user_id, role_ids):
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"""Authorize request token.
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:param request_id: the id of the request token, to be authorized
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:type request_id: string
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:param user_id: the id of the authorizing user
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:type user_id: string
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:param role_ids: list of role ids to authorize
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:type role_ids: list
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:returns: verifier
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"""
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raise exception.NotImplemented()
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@abc.abstractmethod
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def create_access_token(self, request_id, access_token_duration):
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"""Create access token.
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:param request_id: the id of the request token, to be deleted
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:type request_id: string
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:param access_token_duration: duration of an access token
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:type access_token_duration: string
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:returns: access_token_ref
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"""
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raise exception.NotImplemented()
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