Source code for keystone.trust.backends.sql

# Copyright 2012 OpenStack Foundation
#
# 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.

from keystone.common import sql
from keystone import exception
from keystone.openstack.common import timeutils
from keystone import trust


[docs]class TrustModel(sql.ModelBase, sql.DictBase): __tablename__ = 'trust' attributes = ['id', 'trustor_user_id', 'trustee_user_id', 'project_id', 'impersonation', 'expires_at', 'remaining_uses'] id = sql.Column(sql.String(64), primary_key=True) #user id Of owner trustor_user_id = sql.Column(sql.String(64), nullable=False,) #user_id of user allowed to consume this preauth trustee_user_id = sql.Column(sql.String(64), nullable=False) project_id = sql.Column(sql.String(64)) impersonation = sql.Column(sql.Boolean, nullable=False) deleted_at = sql.Column(sql.DateTime) expires_at = sql.Column(sql.DateTime) remaining_uses = sql.Column(sql.Integer, nullable=True) extra = sql.Column(sql.JsonBlob())
[docs]class TrustRole(sql.ModelBase): __tablename__ = 'trust_role' attributes = ['trust_id', 'role_id'] trust_id = sql.Column(sql.String(64), primary_key=True, nullable=False) role_id = sql.Column(sql.String(64), primary_key=True, nullable=False)
[docs]class Trust(trust.Driver): @sql.handle_conflicts(conflict_type='trust')
[docs] def create_trust(self, trust_id, trust, roles): session = sql.get_session() with session.begin(): ref = TrustModel.from_dict(trust) ref['id'] = trust_id if ref.get('expires_at') and ref['expires_at'].tzinfo is not None: ref['expires_at'] = timeutils.normalize_time(ref['expires_at']) session.add(ref) added_roles = [] for role in roles: trust_role = TrustRole() trust_role.trust_id = trust_id trust_role.role_id = role['id'] added_roles.append({'id': role['id']}) session.add(trust_role) trust_dict = ref.to_dict() trust_dict['roles'] = added_roles return trust_dict
def _add_roles(self, trust_id, session, trust_dict): roles = [] for role in session.query(TrustRole).filter_by(trust_id=trust_id): roles.append({'id': role.role_id}) trust_dict['roles'] = roles @sql.handle_conflicts(conflict_type='trust')
[docs] def consume_use(self, trust_id): session = sql.get_session() with session.begin(): ref = (session.query(TrustModel). with_lockmode('update'). filter_by(deleted_at=None). filter_by(id=trust_id).first()) if ref is None: raise exception.TrustNotFound(trust_id=trust_id) if ref.remaining_uses is None: # unlimited uses, do nothing pass elif ref.remaining_uses > 0: ref.remaining_uses -= 1 else: raise exception.TrustUseLimitReached(trust_id=trust_id)
[docs] def get_trust(self, trust_id): session = sql.get_session() ref = (session.query(TrustModel). filter_by(deleted_at=None). filter_by(id=trust_id).first()) if ref is None: return None if ref.expires_at is not None: now = timeutils.utcnow() if now > ref.expires_at: return None # Do not return trusts that can't be used anymore if ref.remaining_uses is not None: if ref.remaining_uses <= 0: return None trust_dict = ref.to_dict() self._add_roles(trust_id, session, trust_dict) return trust_dict
@sql.handle_conflicts(conflict_type='trust')
[docs] def list_trusts(self): session = sql.get_session() trusts = session.query(TrustModel).filter_by(deleted_at=None) return [trust_ref.to_dict() for trust_ref in trusts]
@sql.handle_conflicts(conflict_type='trust')
[docs] def list_trusts_for_trustee(self, trustee_user_id): session = sql.get_session() trusts = (session.query(TrustModel). filter_by(deleted_at=None). filter_by(trustee_user_id=trustee_user_id)) return [trust_ref.to_dict() for trust_ref in trusts]
@sql.handle_conflicts(conflict_type='trust')
[docs] def list_trusts_for_trustor(self, trustor_user_id): session = sql.get_session() trusts = (session.query(TrustModel). filter_by(deleted_at=None). filter_by(trustor_user_id=trustor_user_id)) return [trust_ref.to_dict() for trust_ref in trusts]
@sql.handle_conflicts(conflict_type='trust')
[docs] def delete_trust(self, trust_id): session = sql.get_session() with session.begin(): trust_ref = session.query(TrustModel).get(trust_id) if not trust_ref: raise exception.TrustNotFound(trust_id=trust_id) trust_ref.deleted_at = timeutils.utcnow()