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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2013 OpenStack LLC
#
# 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 sqlalchemy as sql
from keystone.common import utils
from keystone import exception
def upgrade(migrate_engine):
meta = sql.MetaData()
meta.bind = migrate_engine
credential_table = sql.Table('credential',
meta,
autoload=True)
ec2_cred_table = sql.Table('ec2_credential',
meta,
autoload=True)
session = sql.orm.sessionmaker(bind=migrate_engine)()
insert = credential_table.insert()
for ec2credential in session.query(ec2_cred_table):
cred_exist = check_credential_exists(ec2credential,
credential_table, session)
if not cred_exist:
credential = utils.convert_ec2_to_v3_credential(ec2credential)
insert.execute(credential)
session.commit()
session.close()
ec2_cred_table.drop()
def check_credential_exists(ec2credential, credential_table, session):
credential = session.query(credential_table).filter_by(
id=utils.hash_access_key(ec2credential.access)).first()
if credential is None:
return False
blob = utils.get_blob_from_credential(credential)
# check if credential with same access key but different
# secret key already exists in credential table.
# If exists raise an exception
if blob['secret'] != ec2credential.secret:
msg = _('Credential %(access)s already exists with different secret'
' in %(table)s table')
message = msg % {'access': ec2credential.access,
'table': credential_table.name}
raise exception.Conflict(type='credential', details=message)
# check if credential with same access and secret key but
# associated with a different project exists. If exists raise
# an exception
elif credential.project_id is not None and (
credential.project_id != ec2credential.tenant_id):
msg = _('Credential %(access)s already exists with different project'
' in %(table)s table')
message = msg % {'access': ec2credential.access,
'table': credential_table.name}
raise exception.Conflict(type='credential', details=message)
# if credential with same access and secret key and not associated
# with any projects already exists in the credential table, then
# return true.
else:
return True
def downgrade(migrate_engine):
meta = sql.MetaData()
meta.bind = migrate_engine
session = sql.orm.sessionmaker(bind=migrate_engine)()
ec2_credential_table = sql.Table(
'ec2_credential',
meta,
sql.Column('access', sql.String(64), primary_key=True),
sql.Column('secret', sql.String(64)),
sql.Column('user_id', sql.String(64)),
sql.Column('tenant_id', sql.String(64)),
mysql_engine='InnoDB',
mysql_charset='utf8')
ec2_credential_table.create(migrate_engine, checkfirst=True)
credential_table = sql.Table('credential',
meta,
autoload=True)
insert = ec2_credential_table.insert()
for credential in session.query(credential_table).filter(
sql.and_(credential_table.c.type == 'ec2',
credential_table.c.project_id is not None)).all():
ec2_credential = utils.convert_v3_to_ec2_credential(credential)
insert.execute(ec2_credential)
session.commit()
session.close()
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