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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.
from keystoneauth1.identity.v3 import base
from keystoneauth1 import loading
__all__ = ('MultiFactor', )
class MultiFactor(base.Auth):
"""A plugin for authenticating with multiple auth methods.
:param string auth_url: Identity service endpoint for authentication.
:param string auth_methods: names of the methods to authenticate with.
:param string trust_id: Trust ID for trust scoping.
:param string system_scope: System information to scope to.
:param string domain_id: Domain ID for domain scoping.
:param string domain_name: Domain name for domain scoping.
:param string project_id: Project ID for project scoping.
:param string project_name: Project name for project scoping.
:param string project_domain_id: Project's domain ID for project.
:param string project_domain_name: Project's domain name for project.
:param bool reauthenticate: Allow fetching a new token if the current one
is going to expire. (optional) default True
Also accepts various keyword args based on which methods are specified.
"""
def __init__(self, auth_url, auth_methods, **kwargs):
method_instances = []
method_keys = set()
for method in auth_methods:
# Using the loaders we pull the related auth method class
method_class = loading.get_plugin_loader(
method).plugin_class._auth_method_class
# We build some new kwargs for the method from required parameters
method_kwargs = {}
for key in method_class._method_parameters:
# we add them to method_keys to pop later from global kwargs
# rather than here as other methods may need them too
method_keys.add(key)
method_kwargs[key] = kwargs.get(key, None)
# We initialize the method class using just required kwargs
method_instances.append(method_class(**method_kwargs))
# We now pop all the keys used for methods as otherwise they get passed
# to the super class and throw errors
for key in method_keys:
kwargs.pop(key, None)
super(MultiFactor, self).__init__(auth_url, method_instances, **kwargs)
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