89 lines
3.4 KiB
Python
89 lines
3.4 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2013 OpenStack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Keystone External Authentication Plugin"""
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from keystone.common import config
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from keystone import exception
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CONF = config.CONF
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class ExternalDefault(object):
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def authenticate(self, context, auth_info, auth_context):
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"""Use REMOTE_USER to look up the user in the identity backend
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auth_context is an in-out variable that will be updated with the
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username from the REMOTE_USER environment variable.
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"""
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try:
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REMOTE_USER = context['REMOTE_USER']
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except KeyError:
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msg = _('No authenticated user')
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raise exception.Unauthorized(msg)
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try:
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names = REMOTE_USER.split('@')
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username = names.pop(0)
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domain_id = CONF.identity.default_domain_id
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user_ref = auth_info.identity_api.get_user_by_name(username,
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domain_id)
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auth_context['user_id'] = user_ref['id']
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if ('kerberos' in CONF.token.bind and
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context.get('AUTH_TYPE', '').lower() == 'negotiate'):
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auth_context['bind']['kerberos'] = username
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except Exception:
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msg = _('Unable to lookup user %s') % (REMOTE_USER)
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raise exception.Unauthorized(msg)
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class ExternalDomain(object):
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def authenticate(self, context, auth_info, auth_context):
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"""Use REMOTE_USER to look up the user in the identity backend
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auth_context is an in-out variable that will be updated with the
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username from the REMOTE_USER environment variable.
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If REMOTE_USER contains an `@` assume that the substring before the
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rightmost `@` is the username, and the substring after the @ is the
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domain name.
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"""
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try:
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REMOTE_USER = context['REMOTE_USER']
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except KeyError:
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msg = _('No authenticated user')
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raise exception.Unauthorized(msg)
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try:
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names = REMOTE_USER.rsplit('@', 1)
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username = names.pop(0)
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if names:
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domain_name = names[0]
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domain_ref = (auth_info.identity_api.
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get_domain_by_name(domain_name))
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domain_id = domain_ref['id']
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else:
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domain_id = CONF.identity.default_domain_id
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user_ref = auth_info.identity_api.get_user_by_name(username,
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domain_id)
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auth_context['user_id'] = user_ref['id']
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if ('kerberos' in CONF.token.bind and
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context.get('AUTH_TYPE', '').lower() == 'negotiate'):
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auth_context['bind']['kerberos'] = username
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except Exception:
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msg = _('Unable to lookup user %s') % (REMOTE_USER)
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raise exception.Unauthorized(msg)
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