121 lines
4.6 KiB
Python
121 lines
4.6 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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from keystone import auth
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from keystone.common import dependency
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from keystone import exception
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from keystone import identity
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from keystone.openstack.common import log as logging
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METHOD_NAME = 'password'
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LOG = logging.getLogger(__name__)
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class UserAuthInfo(object):
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def __init__(self, auth_payload):
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self.identity_api = identity.Manager()
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self.user_id = None
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self.password = None
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self.user_ref = None
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self._validate_and_normalize_auth_data(auth_payload)
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def _assert_domain_is_enabled(self, domain_ref):
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if not domain_ref.get('enabled'):
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msg = _('Domain is disabled: %s') % (domain_ref['id'])
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LOG.warning(msg)
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raise exception.Unauthorized(msg)
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def _assert_user_is_enabled(self, user_ref):
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if not user_ref.get('enabled', True):
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msg = _('User is disabled: %s') % (user_ref['id'])
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LOG.warning(msg)
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raise exception.Unauthorized(msg)
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def _lookup_domain(self, domain_info):
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domain_id = domain_info.get('id')
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domain_name = domain_info.get('name')
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domain_ref = None
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if not domain_id and not domain_name:
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raise exception.ValidationError(attribute='id or name',
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target='domain')
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try:
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if domain_name:
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domain_ref = self.identity_api.get_domain_by_name(domain_name)
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else:
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domain_ref = self.identity_api.get_domain(domain_id)
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except exception.DomainNotFound as e:
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LOG.exception(e)
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raise exception.Unauthorized(e)
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self._assert_domain_is_enabled(domain_ref)
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return domain_ref
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def _validate_and_normalize_auth_data(self, auth_payload):
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if 'user' not in auth_payload:
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raise exception.ValidationError(attribute='user',
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target=METHOD_NAME)
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user_info = auth_payload['user']
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user_id = user_info.get('id')
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user_name = user_info.get('name')
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user_ref = None
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if not user_id and not user_name:
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raise exception.ValidationError(attribute='id or name',
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target='user')
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self.password = user_info.get('password', None)
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try:
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if user_name:
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if 'domain' not in user_info:
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raise exception.ValidationError(attribute='domain',
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target='user')
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domain_ref = self._lookup_domain(user_info['domain'])
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user_ref = self.identity_api.get_user_by_name(
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user_name, domain_ref['id'])
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else:
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user_ref = self.identity_api.get_user(user_id)
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domain_ref = self.identity_api.get_domain(
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user_ref['domain_id'])
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self._assert_domain_is_enabled(domain_ref)
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except exception.UserNotFound as e:
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LOG.exception(e)
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raise exception.Unauthorized(e)
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self._assert_user_is_enabled(user_ref)
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self.user_ref = user_ref
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self.user_id = user_ref['id']
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self.domain_id = domain_ref['id']
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@dependency.requires('identity_api')
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class Password(auth.AuthMethodHandler):
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def authenticate(self, context, auth_payload, user_context):
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"""Try to authenticate against the identity backend."""
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user_info = UserAuthInfo(auth_payload)
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# FIXME(gyee): identity.authenticate() can use some refactoring since
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# all we care is password matches
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try:
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self.identity_api.authenticate(
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user_id=user_info.user_id,
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password=user_info.password,
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domain_scope=user_info.domain_id)
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except AssertionError:
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# authentication failed because of invalid username or password
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msg = _('Invalid username or password')
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raise exception.Unauthorized(msg)
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if 'user_id' not in user_context:
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user_context['user_id'] = user_info.user_id
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