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# Copyright 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.
from keystone import auth
from keystone.auth import plugins as auth_plugins
from keystone.common import dependency
from keystone import exception
from keystone.i18n import _
METHOD_NAME = 'password'
@dependency.requires('identity_api')
class Password(auth.AuthMethodHandler):
def authenticate(self, context, auth_payload, auth_context):
"""Try to authenticate against the identity backend."""
user_info = auth_plugins.UserAuthInfo.create(auth_payload, METHOD_NAME)
try:
self.identity_api.authenticate(
context,
user_id=user_info.user_id,
password=user_info.password)
except AssertionError:
# authentication failed because of invalid username or password
msg = _('Invalid username or password')
raise exception.Unauthorized(msg)
auth_context['user_id'] = user_info.user_id
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