OpenStack Identity (Keystone)
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# 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 copy
import datetime
import sqlalchemy
from oslo_config import cfg
from oslo_db import api as oslo_db_api
from keystone.common import provider_api
from keystone.common import sql
from keystone import exception
from keystone.identity.backends import base as identity_base
from keystone.identity.backends import sql_model as model
from keystone.identity.shadow_backends import base
CONF = cfg.CONF
PROVIDERS = provider_api.ProviderAPIs
class ShadowUsers(base.ShadowUsersDriverBase):
@sql.handle_conflicts(conflict_type='federated_user')
def create_federated_user(self, domain_id, federated_dict, email=None):
local_entity = {'domain_id': domain_id,
'local_id': federated_dict['unique_id'],
'entity_type': 'user'}
public_id = PROVIDERS.id_generator_api.generate_public_ID(local_entity)
user = {
'id': public_id,
'domain_id': domain_id,
'enabled': True
}
if email:
user['email'] = email
with sql.session_for_write() as session:
federated_ref = model.FederatedUser.from_dict(federated_dict)
user_ref = model.User.from_dict(user)
user_ref.created_at = datetime.datetime.utcnow()
user_ref.federated_users.append(federated_ref)
session.add(user_ref)
return identity_base.filter_user(user_ref.to_dict())
def get_federated_objects(self, user_id):
with sql.session_for_read() as session:
query = session.query(model.FederatedUser)
query = query.filter(model.FederatedUser.user_id == user_id)
fed_ref = []
for row in query:
m = model.FederatedUser(
idp_id=row.idp_id,
protocol_id=row.protocol_id,
unique_id=row.unique_id)
fed_ref.append(m.to_dict())
return base.federated_objects_to_list(fed_ref)
def _update_query_with_federated_statements(self, hints, query):
statements = []
for filter_ in hints.filters:
if filter_['name'] == 'idp_id':
statements.append(
model.FederatedUser.idp_id == filter_['value'])
if filter_['name'] == 'protocol_id':
statements.append(
model.FederatedUser.protocol_id == filter_['value'])
if filter_['name'] == 'unique_id':
statements.append(
model.FederatedUser.unique_id == filter_['value'])
# Remove federated attributes to prevent redundancies from
# sql.filter_limit_query which filters remaining hints
hints.filters = [
x for x in hints.filters if x['name'] not in ('idp_id',
'protocol_id',
'unique_id')]
query = query.filter(sqlalchemy.and_(*statements))
return query
def get_federated_users(self, hints):
with sql.session_for_read() as session:
query = session.query(model.User).outerjoin(
model.LocalUser).outerjoin(model.FederatedUser)
query = query.filter(model.User.id == model.FederatedUser.user_id)
query = self._update_query_with_federated_statements(hints, query)
name_filter = None
for filter_ in hints.filters:
if filter_['name'] == 'name':
name_filter = filter_
query = query.filter(
model.FederatedUser.display_name == name_filter[
'value'])
break
if name_filter:
hints.filters.remove(name_filter)
user_refs = sql.filter_limit_query(model.User, query, hints)
return [identity_base.filter_user(x.to_dict()) for x in user_refs]
def get_federated_user(self, idp_id, protocol_id, unique_id):
# NOTE(notmorgan): Open a session here to ensure .to_dict is called
# within an active session context. This will prevent lazy-load
# relationship failure edge-cases
# FIXME(notmorgan): Eventually this should not call `to_dict` here and
# rely on something already in the session context to perform the
# `to_dict` call.
with sql.session_for_read():
user_ref = self._get_federated_user(idp_id, protocol_id, unique_id)
return identity_base.filter_user(user_ref.to_dict())
def _get_federated_user(self, idp_id, protocol_id, unique_id):
"""Return the found user for the federated identity.
:param idp_id: The identity provider ID
:param protocol_id: The federation protocol ID
:param unique_id: The user's unique ID (unique within the IdP)
:returns User: Returns a reference to the User
"""
with sql.session_for_read() as session:
query = session.query(model.User).outerjoin(model.LocalUser)
query = query.join(model.FederatedUser)
query = query.filter(model.FederatedUser.idp_id == idp_id)
query = query.filter(model.FederatedUser.protocol_id ==
protocol_id)
query = query.filter(model.FederatedUser.unique_id == unique_id)
try:
user_ref = query.one()
except sql.NotFound:
raise exception.UserNotFound(user_id=unique_id)
return user_ref
def set_last_active_at(self, user_id):
if CONF.security_compliance.disable_user_account_days_inactive:
with sql.session_for_write() as session:
user_ref = session.query(model.User).get(user_id)
user_ref.last_active_at = datetime.datetime.utcnow().date()
@sql.handle_conflicts(conflict_type='federated_user')
def update_federated_user_display_name(self, idp_id, protocol_id,
unique_id, display_name):
with sql.session_for_write() as session:
query = session.query(model.FederatedUser)
query = query.filter(model.FederatedUser.idp_id == idp_id)
query = query.filter(model.FederatedUser.protocol_id ==
protocol_id)
query = query.filter(model.FederatedUser.unique_id == unique_id)
query = query.filter(model.FederatedUser.display_name !=
display_name)
query.update({'display_name': display_name})
return
@sql.handle_conflicts(conflict_type='nonlocal_user')
def create_nonlocal_user(self, user_dict):
new_user_dict = copy.deepcopy(user_dict)
# remove local_user attributes from new_user_dict
new_user_dict.pop('name', None)
new_user_dict.pop('password', None)
# create nonlocal_user dict
new_nonlocal_user_dict = {
'name': user_dict['name']
}
with sql.session_for_write() as session:
new_nonlocal_user_ref = model.NonLocalUser.from_dict(
new_nonlocal_user_dict)
new_user_ref = model.User.from_dict(new_user_dict)
new_user_ref.created_at = datetime.datetime.utcnow()
new_user_ref.nonlocal_user = new_nonlocal_user_ref
session.add(new_user_ref)
return identity_base.filter_user(new_user_ref.to_dict())
@oslo_db_api.wrap_db_retry(retry_on_deadlock=True)
def delete_user(self, user_id):
with sql.session_for_write() as session:
ref = self._get_user(session, user_id)
q = session.query(model.UserGroupMembership)
q = q.filter_by(user_id=user_id)
q.delete(False)
session.delete(ref)
def get_user(self, user_id):
with sql.session_for_read() as session:
user_ref = self._get_user(session, user_id)
return identity_base.filter_user(user_ref.to_dict())
def _get_user(self, session, user_id):
user_ref = session.query(model.User).get(user_id)
if not user_ref:
raise exception.UserNotFound(user_id=user_id)
return user_ref
def list_federated_users_info(self, hints=None):
with sql.session_for_read() as session:
query = session.query(model.FederatedUser)
fed_user_refs = sql.filter_limit_query(model.FederatedUser, query,
hints)
return [x.to_dict() for x in fed_user_refs]
def add_user_to_group_expires(self, user_id, group_id):
def get_federated_user():
with sql.session_for_read() as session:
query = session.query(model.FederatedUser)
query = query.filter_by(user_id=user_id)
user = query.first()
if not user:
# Note(knikolla): This shouldn't really ever happen, since
# this requires the user to already be logged in.
raise exception.UserNotFound()
return user
with sql.session_for_write() as session:
user = get_federated_user()
query = session.query(model.ExpiringUserGroupMembership)
query = query.filter_by(user_id=user_id)
query = query.filter_by(group_id=group_id)
membership = query.first()
if membership:
membership.last_verified = datetime.datetime.utcnow()
else:
session.add(model.ExpiringUserGroupMembership(
user_id=user_id,
group_id=group_id,
idp_id=user.idp_id,
last_verified=datetime.datetime.utcnow()
))