720 lines
27 KiB
Python
720 lines
27 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 OpenStack LLC
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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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import uuid
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import routes
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import json
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from keystone import config
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from keystone import catalog
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from keystone.common import cms
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from keystone.common import logging
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from keystone.common import wsgi
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from keystone import exception
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from keystone import identity
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from keystone.openstack.common import timeutils
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from keystone import policy
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from keystone import token
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LOG = logging.getLogger(__name__)
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class AdminRouter(wsgi.ComposingRouter):
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def __init__(self):
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mapper = routes.Mapper()
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version_controller = VersionController('admin')
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mapper.connect('/',
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controller=version_controller,
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action='get_version')
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# Token Operations
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auth_controller = TokenController()
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mapper.connect('/tokens',
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controller=auth_controller,
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action='authenticate',
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conditions=dict(method=['POST']))
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mapper.connect('/tokens/revoked',
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controller=auth_controller,
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action='revocation_list',
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conditions=dict(method=['GET']))
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mapper.connect('/tokens/{token_id}',
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controller=auth_controller,
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action='validate_token',
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conditions=dict(method=['GET']))
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mapper.connect('/tokens/{token_id}',
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controller=auth_controller,
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action='validate_token_head',
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conditions=dict(method=['HEAD']))
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mapper.connect('/tokens/{token_id}',
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controller=auth_controller,
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action='delete_token',
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conditions=dict(method=['DELETE']))
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mapper.connect('/tokens/{token_id}/endpoints',
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controller=auth_controller,
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action='endpoints',
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conditions=dict(method=['GET']))
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# Certificates used to verify auth tokens
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mapper.connect('/certificates/ca',
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controller=auth_controller,
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action='ca_cert',
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conditions=dict(method=['GET']))
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mapper.connect('/certificates/signing',
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controller=auth_controller,
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action='signing_cert',
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conditions=dict(method=['GET']))
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# Miscellaneous Operations
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extensions_controller = AdminExtensionsController()
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mapper.connect('/extensions',
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controller=extensions_controller,
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action='get_extensions_info',
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conditions=dict(method=['GET']))
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mapper.connect('/extensions/{extension_alias}',
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controller=extensions_controller,
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action='get_extension_info',
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conditions=dict(method=['GET']))
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identity_router = identity.AdminRouter()
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routers = [identity_router]
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super(AdminRouter, self).__init__(mapper, routers)
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class PublicRouter(wsgi.ComposingRouter):
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def __init__(self):
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mapper = routes.Mapper()
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version_controller = VersionController('public')
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mapper.connect('/',
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controller=version_controller,
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action='get_version')
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# Token Operations
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auth_controller = TokenController()
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mapper.connect('/tokens',
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controller=auth_controller,
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action='authenticate',
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conditions=dict(method=['POST']))
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mapper.connect('/certificates/ca',
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controller=auth_controller,
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action='ca_cert',
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conditions=dict(method=['GET']))
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mapper.connect('/certificates/signing',
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controller=auth_controller,
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action='signing_cert',
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conditions=dict(method=['GET']))
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# Miscellaneous
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extensions_controller = PublicExtensionsController()
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mapper.connect('/extensions',
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controller=extensions_controller,
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action='get_extensions_info',
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conditions=dict(method=['GET']))
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mapper.connect('/extensions/{extension_alias}',
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controller=extensions_controller,
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action='get_extension_info',
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conditions=dict(method=['GET']))
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identity_router = identity.PublicRouter()
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routers = [identity_router]
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super(PublicRouter, self).__init__(mapper, routers)
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class PublicVersionRouter(wsgi.ComposingRouter):
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def __init__(self):
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mapper = routes.Mapper()
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version_controller = VersionController('public')
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mapper.connect('/',
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controller=version_controller,
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action='get_versions')
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routers = []
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super(PublicVersionRouter, self).__init__(mapper, routers)
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class AdminVersionRouter(wsgi.ComposingRouter):
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def __init__(self):
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mapper = routes.Mapper()
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version_controller = VersionController('admin')
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mapper.connect('/',
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controller=version_controller,
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action='get_versions')
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routers = []
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super(AdminVersionRouter, self).__init__(mapper, routers)
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class VersionController(wsgi.Application):
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def __init__(self, version_type):
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self.catalog_api = catalog.Manager()
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self.url_key = '%sURL' % version_type
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super(VersionController, self).__init__()
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def _get_identity_url(self, context):
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catalog_ref = self.catalog_api.get_catalog(context=context,
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user_id=None,
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tenant_id=None)
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for region, region_ref in catalog_ref.iteritems():
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for service, service_ref in region_ref.iteritems():
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if service == 'identity':
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return service_ref[self.url_key]
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raise exception.NotImplemented()
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def _get_versions_list(self, context):
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"""The list of versions is dependent on the context."""
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identity_url = self._get_identity_url(context)
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if not identity_url.endswith('/'):
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identity_url = identity_url + '/'
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versions = {}
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versions['v2.0'] = {
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'id': 'v2.0',
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'status': 'beta',
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'updated': '2011-11-19T00:00:00Z',
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'links': [
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{
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'rel': 'self',
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'href': identity_url,
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}, {
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'rel': 'describedby',
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'type': 'text/html',
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'href': 'http://docs.openstack.org/api/openstack-'
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'identity-service/2.0/content/'
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}, {
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'rel': 'describedby',
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'type': 'application/pdf',
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'href': 'http://docs.openstack.org/api/openstack-'
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'identity-service/2.0/identity-dev-guide-'
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'2.0.pdf'
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}
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],
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'media-types': [
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{
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'base': 'application/json',
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'type': 'application/vnd.openstack.identity-v2.0'
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'+json'
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}, {
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'base': 'application/xml',
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'type': 'application/vnd.openstack.identity-v2.0'
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'+xml'
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}
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]
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}
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return versions
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def get_versions(self, context):
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versions = self._get_versions_list(context)
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return wsgi.render_response(status=(300, 'Multiple Choices'), body={
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'versions': {
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'values': versions.values()
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}
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})
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def get_version(self, context):
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versions = self._get_versions_list(context)
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return wsgi.render_response(body={
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'version': versions['v2.0']
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})
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class NoopController(wsgi.Application):
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def __init__(self):
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super(NoopController, self).__init__()
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def noop(self, context):
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return {}
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class TokenController(wsgi.Application):
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def __init__(self):
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self.catalog_api = catalog.Manager()
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self.identity_api = identity.Manager()
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self.token_api = token.Manager()
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self.policy_api = policy.Manager()
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super(TokenController, self).__init__()
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def ca_cert(self, context, auth=None):
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ca_file = open(config.CONF.signing.ca_certs, 'r')
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data = ca_file.read()
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ca_file.close()
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return data
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def signing_cert(self, context, auth=None):
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cert_file = open(config.CONF.signing.certfile, 'r')
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data = cert_file.read()
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cert_file.close()
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return data
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def authenticate(self, context, auth=None):
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"""Authenticate credentials and return a token.
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Accept auth as a dict that looks like::
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{
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"auth":{
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"passwordCredentials":{
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"username":"test_user",
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"password":"mypass"
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},
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"tenantName":"customer-x"
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}
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}
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In this case, tenant is optional, if not provided the token will be
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considered "unscoped" and can later be used to get a scoped token.
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Alternatively, this call accepts auth with only a token and tenant
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that will return a token that is scoped to that tenant.
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"""
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if 'passwordCredentials' in auth:
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user_id = auth['passwordCredentials'].get('userId', None)
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username = auth['passwordCredentials'].get('username', '')
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password = auth['passwordCredentials'].get('password', '')
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tenant_name = auth.get('tenantName', None)
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if username:
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try:
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user_ref = self.identity_api.get_user_by_name(
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context=context, user_name=username)
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user_id = user_ref['id']
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except exception.UserNotFound:
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raise exception.Unauthorized()
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# more compat
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tenant_id = auth.get('tenantId', None)
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if tenant_name:
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try:
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tenant_ref = self.identity_api.get_tenant_by_name(
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context=context, tenant_name=tenant_name)
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tenant_id = tenant_ref['id']
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except exception.TenantNotFound:
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raise exception.Unauthorized()
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try:
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auth_info = self.identity_api.authenticate(context=context,
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user_id=user_id,
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password=password,
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tenant_id=tenant_id)
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(user_ref, tenant_ref, metadata_ref) = auth_info
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# If the user is disabled don't allow them to authenticate
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if not user_ref.get('enabled', True):
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LOG.warning('User %s is disabled' % user_id)
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raise exception.Unauthorized()
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# If the tenant is disabled don't allow them to authenticate
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if tenant_ref and not tenant_ref.get('enabled', True):
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LOG.warning('Tenant %s is disabled' % tenant_id)
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raise exception.Unauthorized()
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except AssertionError as e:
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raise exception.Unauthorized(e.message)
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auth_token_data = dict(zip(['user', 'tenant', 'metadata'],
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auth_info))
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expiry = self.token_api._get_default_expire_time(context=context)
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if tenant_ref:
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catalog_ref = self.catalog_api.get_catalog(
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context=context,
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user_id=user_ref['id'],
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tenant_id=tenant_ref['id'],
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metadata=metadata_ref)
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else:
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catalog_ref = {}
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elif 'token' in auth:
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old_token = auth['token'].get('id', None)
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tenant_name = auth.get('tenantName')
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try:
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old_token_ref = self.token_api.get_token(context=context,
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token_id=old_token)
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except exception.NotFound:
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raise exception.Unauthorized()
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user_ref = old_token_ref['user']
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user_id = user_ref['id']
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current_user_ref = self.identity_api.get_user(context=context,
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user_id=user_id)
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# If the user is disabled don't allow them to authenticate
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if not current_user_ref.get('enabled', True):
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LOG.warning('User %s is disabled' % user_id)
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raise exception.Unauthorized()
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if tenant_name:
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tenant_ref = self.identity_api.get_tenant_by_name(
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context=context,
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tenant_name=tenant_name)
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tenant_id = tenant_ref['id']
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else:
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tenant_id = auth.get('tenantId', None)
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tenants = self.identity_api.get_tenants_for_user(context, user_id)
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if tenant_id:
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if not tenant_id in tenants:
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LOG.warning('User %s is authorized for tenant %s'
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% (user_id, tenant_id))
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raise exception.Unauthorized()
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# if the old token is sufficient unpack and return it
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if (old_token_ref['tenant']
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and tenant_id == old_token_ref['tenant']['id']
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and len(old_token) > cms.UUID_TOKEN_LENGTH):
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json_data = cms.verify_token(
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old_token,
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config.CONF.signing.certfile,
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config.CONF.signing.ca_certs)
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return_data = json.loads(json_data)
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return_data['access']['token']['id'] = old_token
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return return_data
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expiry = old_token_ref['expires']
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try:
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tenant_ref = self.identity_api.get_tenant(context=context,
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tenant_id=tenant_id)
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except exception.TenantNotFound:
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tenant_ref = None
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metadata_ref = {}
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catalog_ref = {}
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except exception.MetadataNotFound:
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metadata_ref = {}
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catalog_ref = {}
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# If the tenant is disabled don't allow them to authenticate
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if tenant_ref and not tenant_ref.get('enabled', True):
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LOG.warning('Tenant %s is disabled' % tenant_id)
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raise exception.Unauthorized()
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if tenant_ref:
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metadata_ref = self.identity_api.get_metadata(
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context=context,
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user_id=user_ref['id'],
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tenant_id=tenant_ref['id'])
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catalog_ref = self.catalog_api.get_catalog(
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context=context,
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user_id=user_ref['id'],
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tenant_id=tenant_ref['id'],
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metadata=metadata_ref)
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auth_token_data = dict(dict(user=current_user_ref,
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tenant=tenant_ref,
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metadata=metadata_ref))
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auth_token_data['expires'] = expiry
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auth_token_data['id'] = 'placeholder'
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roles_ref = []
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for role_id in metadata_ref.get('roles', []):
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role_ref = self.identity_api.get_role(context, role_id)
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roles_ref.append(dict(name=role_ref['name']))
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token_data = self._format_token(auth_token_data, roles_ref)
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service_catalog = self._format_catalog(catalog_ref)
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token_data['access']['serviceCatalog'] = service_catalog
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if config.CONF.signing.token_format == 'UUID':
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token_id = uuid.uuid4().hex
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elif config.CONF.signing.token_format == 'PKI':
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token_id = cms.cms_sign_token(json.dumps(token_data),
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config.CONF.signing.certfile,
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config.CONF.signing.keyfile)
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else:
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raise exception.UnexpectedError(
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'Invalid value for token_format: %s.'
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' Allowed values are PKI or UUID.' %
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config.CONF.signing.token_format)
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try:
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self.token_api.create_token(
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context, token_id, dict(key=token_id,
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id=token_id,
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user=user_ref,
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tenant=tenant_ref,
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metadata=metadata_ref))
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except Exception as e:
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# an identical token may have been created already.
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# if so, return the token_data as it is also identical
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try:
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self.token_api.get_token(context=context,
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token_id=token_id)
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except exception.TokenNotFound:
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raise e
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token_data['access']['token']['id'] = token_id
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return token_data
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def _get_token_ref(self, context, token_id, belongs_to=None):
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"""Returns a token if a valid one exists.
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Optionally, limited to a token owned by a specific tenant.
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"""
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# TODO(termie): this stuff should probably be moved to middleware
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self.assert_admin(context)
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if len(token_id) > cms.UUID_TOKEN_LENGTH:
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data = json.loads(cms.cms_verify(cms.token_to_cms(token_id),
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config.CONF.signing.certfile,
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config.CONF.signing.ca_certs))
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data['access']['token']['user'] = data['access']['user']
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data['access']['token']['metadata'] = data['access']['metadata']
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if belongs_to:
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assert data['access']['token']['tenant']['id'] == belongs_to
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token_ref = data['access']['token']
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else:
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token_ref = self.token_api.get_token(context=context,
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token_id=token_id)
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return token_ref
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# admin only
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def validate_token_head(self, context, token_id):
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"""Check that a token is valid.
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Optionally, also ensure that it is owned by a specific tenant.
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Identical to ``validate_token``, except does not return a response.
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"""
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belongs_to = context['query_string'].get('belongsTo')
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assert self._get_token_ref(context, token_id, belongs_to)
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# admin only
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def validate_token(self, context, token_id):
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"""Check that a token is valid.
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Optionally, also ensure that it is owned by a specific tenant.
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Returns metadata about the token along any associated roles.
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"""
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belongs_to = context['query_string'].get('belongsTo')
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token_ref = self._get_token_ref(context, token_id, belongs_to)
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# TODO(termie): optimize this call at some point and put it into the
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# the return for metadata
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# fill out the roles in the metadata
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metadata_ref = token_ref['metadata']
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roles_ref = []
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for role_id in metadata_ref.get('roles', []):
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roles_ref.append(self.identity_api.get_role(context, role_id))
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# Get a service catalog if possible
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# This is needed for on-behalf-of requests
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catalog_ref = None
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if token_ref.get('tenant'):
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catalog_ref = self.catalog_api.get_catalog(
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context=context,
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user_id=token_ref['user']['id'],
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tenant_id=token_ref['tenant']['id'],
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metadata=metadata_ref)
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return self._format_token(token_ref, roles_ref, catalog_ref)
|
|
|
|
def delete_token(self, context, token_id):
|
|
"""Delete a token, effectively invalidating it for authz."""
|
|
# TODO(termie): this stuff should probably be moved to middleware
|
|
self.assert_admin(context)
|
|
self.token_api.delete_token(context=context, token_id=token_id)
|
|
|
|
def revocation_list(self, context, auth=None):
|
|
self.assert_admin(context)
|
|
tokens = self.token_api.list_revoked_tokens(context)
|
|
|
|
for t in tokens:
|
|
expires = t['expires']
|
|
if not (expires and isinstance(expires, unicode)):
|
|
t['expires'] = timeutils.isotime(expires)
|
|
data = {'revoked': tokens}
|
|
json_data = json.dumps(data)
|
|
signed_text = cms.cms_sign_text(json_data,
|
|
config.CONF.signing.certfile,
|
|
config.CONF.signing.keyfile)
|
|
|
|
return {'signed': signed_text}
|
|
|
|
def endpoints(self, context, token_id):
|
|
"""Return a list of endpoints available to the token."""
|
|
raise exception.NotImplemented()
|
|
|
|
def _format_authenticate(self, token_ref, roles_ref, catalog_ref):
|
|
o = self._format_token(token_ref, roles_ref)
|
|
o['access']['serviceCatalog'] = self._format_catalog(catalog_ref)
|
|
return o
|
|
|
|
def _format_token(self, token_ref, roles_ref, catalog_ref=None):
|
|
user_ref = token_ref['user']
|
|
metadata_ref = token_ref['metadata']
|
|
expires = token_ref['expires']
|
|
if expires is not None:
|
|
if not isinstance(expires, unicode):
|
|
expires = timeutils.isotime(expires)
|
|
o = {'access': {'token': {'id': token_ref['id'],
|
|
'expires': expires,
|
|
},
|
|
'user': {'id': user_ref['id'],
|
|
'name': user_ref['name'],
|
|
'username': user_ref['name'],
|
|
'roles': roles_ref,
|
|
'roles_links': metadata_ref.get('roles_links',
|
|
[])
|
|
}
|
|
}
|
|
}
|
|
if 'tenant' in token_ref and token_ref['tenant']:
|
|
token_ref['tenant']['enabled'] = True
|
|
o['access']['token']['tenant'] = token_ref['tenant']
|
|
if catalog_ref is not None:
|
|
o['access']['serviceCatalog'] = self._format_catalog(catalog_ref)
|
|
if metadata_ref:
|
|
if 'is_admin' in metadata_ref:
|
|
o['access']['metadata'] = {'is_admin':
|
|
metadata_ref['is_admin']}
|
|
else:
|
|
o['access']['metadata'] = {'is_admin': 0}
|
|
if 'roles' in metadata_ref:
|
|
o['access']['metadata']['roles'] = metadata_ref['roles']
|
|
return o
|
|
|
|
def _format_catalog(self, catalog_ref):
|
|
"""Munge catalogs from internal to output format
|
|
Internal catalogs look like:
|
|
|
|
{$REGION: {
|
|
{$SERVICE: {
|
|
$key1: $value1,
|
|
...
|
|
}
|
|
}
|
|
}
|
|
|
|
The legacy api wants them to look like
|
|
|
|
[{'name': $SERVICE[name],
|
|
'type': $SERVICE,
|
|
'endpoints': [{
|
|
'tenantId': $tenant_id,
|
|
...
|
|
'region': $REGION,
|
|
}],
|
|
'endpoints_links': [],
|
|
}]
|
|
|
|
"""
|
|
if not catalog_ref:
|
|
return {}
|
|
|
|
services = {}
|
|
for region, region_ref in catalog_ref.iteritems():
|
|
for service, service_ref in region_ref.iteritems():
|
|
new_service_ref = services.get(service, {})
|
|
new_service_ref['name'] = service_ref.pop('name')
|
|
new_service_ref['type'] = service
|
|
new_service_ref['endpoints_links'] = []
|
|
service_ref['region'] = region
|
|
|
|
endpoints_ref = new_service_ref.get('endpoints', [])
|
|
endpoints_ref.append(service_ref)
|
|
|
|
new_service_ref['endpoints'] = endpoints_ref
|
|
services[service] = new_service_ref
|
|
|
|
return services.values()
|
|
|
|
|
|
class ExtensionsController(wsgi.Application):
|
|
"""Base extensions controller to be extended by public and admin API's."""
|
|
|
|
def __init__(self, extensions=None):
|
|
super(ExtensionsController, self).__init__()
|
|
|
|
self.extensions = extensions or {}
|
|
|
|
def get_extensions_info(self, context):
|
|
return {'extensions': {'values': self.extensions.values()}}
|
|
|
|
def get_extension_info(self, context, extension_alias):
|
|
try:
|
|
return {'extension': self.extensions[extension_alias]}
|
|
except KeyError:
|
|
raise exception.NotFound(target=extension_alias)
|
|
|
|
|
|
class PublicExtensionsController(ExtensionsController):
|
|
pass
|
|
|
|
|
|
class AdminExtensionsController(ExtensionsController):
|
|
def __init__(self, *args, **kwargs):
|
|
super(AdminExtensionsController, self).__init__(*args, **kwargs)
|
|
|
|
# TODO(dolph): Extensions should obviously provide this information
|
|
# themselves, but hardcoding it here allows us to match
|
|
# the API spec in the short term with minimal complexity.
|
|
self.extensions['OS-KSADM'] = {
|
|
'name': 'Openstack Keystone Admin',
|
|
'namespace': 'http://docs.openstack.org/identity/api/ext/'
|
|
'OS-KSADM/v1.0',
|
|
'alias': 'OS-KSADM',
|
|
'updated': '2011-08-19T13:25:27-06:00',
|
|
'description': 'Openstack extensions to Keystone v2.0 API '
|
|
'enabling Admin Operations.',
|
|
'links': [
|
|
{
|
|
'rel': 'describedby',
|
|
# TODO(dolph): link needs to be revised after
|
|
# bug 928059 merges
|
|
'type': 'text/html',
|
|
'href': 'https://github.com/openstack/identity-api',
|
|
}
|
|
]
|
|
}
|
|
|
|
|
|
@logging.fail_gracefully
|
|
def public_app_factory(global_conf, **local_conf):
|
|
conf = global_conf.copy()
|
|
conf.update(local_conf)
|
|
return PublicRouter()
|
|
|
|
|
|
@logging.fail_gracefully
|
|
def admin_app_factory(global_conf, **local_conf):
|
|
conf = global_conf.copy()
|
|
conf.update(local_conf)
|
|
return AdminRouter()
|
|
|
|
|
|
@logging.fail_gracefully
|
|
def public_version_app_factory(global_conf, **local_conf):
|
|
conf = global_conf.copy()
|
|
conf.update(local_conf)
|
|
return PublicVersionRouter()
|
|
|
|
|
|
@logging.fail_gracefully
|
|
def admin_version_app_factory(global_conf, **local_conf):
|
|
conf = global_conf.copy()
|
|
conf.update(local_conf)
|
|
return AdminVersionRouter()
|