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# Copyright 2012-2013 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.

#

import logging

from keystoneclient.v2_0 import client as identity_client_v2

from openstackclient.api import auth

from openstackclient.common import utils

LOG = logging.getLogger(__name__)

DEFAULT_IDENTITY_API_VERSION = '2'

API_VERSION_OPTION = 'os_identity_api_version'

API_NAME = 'identity'

API_VERSIONS = {

'2.0': 'openstackclient.identity.client.IdentityClientv2',

'2': 'openstackclient.identity.client.IdentityClientv2',

'3': 'keystoneclient.v3.client.Client',

}

# Translate our API version to auth plugin version prefix

AUTH_VERSIONS = {

'2.0': 'v2',

'2': 'v2',

'3': 'v3',

}

def make_client(instance):

"""Returns an identity service client."""

identity_client = utils.get_client_class(

API_NAME,

instance._api_version[API_NAME],

API_VERSIONS)

LOG.debug('Instantiating identity client: %s', identity_client)

client = identity_client(

session=instance.session,

region_name=instance._region_name,

)

return client

def build_option_parser(parser):

"""Hook to add global options"""

parser.add_argument(

'--os-identity-api-version',

metavar='<identity-api-version>',

default=utils.env(

'OS_IDENTITY_API_VERSION',

default=DEFAULT_IDENTITY_API_VERSION),

help='Identity API version, default=' +

DEFAULT_IDENTITY_API_VERSION +

' (Env: OS_IDENTITY_API_VERSION)')

return auth.build_auth_plugins_option_parser(parser)

class IdentityClientv2(identity_client_v2.Client):

"""Tweak the earlier client class to deal with some changes"""

def __getattr__(self, name):

# Map v3 'projects' back to v2 'tenants'

if name == "projects":

return self.tenants

else:

raise AttributeError(name)