25011a09df
SDK starts caching authorization state in keyring (when available and enabled). Respecting it requires few minor changes: closing connection and reusing auth_ref. Depends-On: https://review.opendev.org/c/openstack/openstacksdk/+/735352 Change-Id: I7b7cff4887ec77e4c9d98809150d9064eedafaf6
261 lines
9.6 KiB
Python
261 lines
9.6 KiB
Python
# 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.
|
|
#
|
|
|
|
"""Manage access to the clients, including authenticating when needed."""
|
|
|
|
import copy
|
|
import logging
|
|
|
|
from openstack.config import loader as config # noqa
|
|
from openstack import connection
|
|
from oslo_utils import strutils
|
|
|
|
from osc_lib.api import auth
|
|
from osc_lib import exceptions
|
|
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
PLUGIN_MODULES = []
|
|
|
|
|
|
class ClientCache(object):
|
|
"""Descriptor class for caching created client handles."""
|
|
|
|
def __init__(self, factory):
|
|
self.factory = factory
|
|
self._handle = None
|
|
|
|
def __get__(self, instance, owner):
|
|
# Tell the ClientManager to login to keystone
|
|
if self._handle is None:
|
|
try:
|
|
self._handle = self.factory(instance)
|
|
except AttributeError as err:
|
|
# Make sure the failure propagates. Otherwise, the plugin just
|
|
# quietly isn't there.
|
|
raise exceptions.PluginAttributeError(err) from err
|
|
return self._handle
|
|
|
|
|
|
class ClientManager(object):
|
|
"""Manages access to API clients, including authentication."""
|
|
|
|
# NOTE(dtroyer): Keep around the auth required state of the _current_
|
|
# command since ClientManager has no visibility to the
|
|
# command itself; assume auth is not required.
|
|
_auth_required = False
|
|
|
|
def __init__(
|
|
self,
|
|
cli_options=None,
|
|
api_version=None,
|
|
pw_func=None,
|
|
app_name=None,
|
|
app_version=None,
|
|
):
|
|
"""Set up a ClientManager
|
|
|
|
:param cli_options:
|
|
Options collected from the command-line, environment, or wherever
|
|
:param api_version:
|
|
Dict of API versions: key is API name, value is the version
|
|
:param pw_func:
|
|
Callback function for asking the user for a password. The function
|
|
takes an optional string for the prompt ('Password: ' on None) and
|
|
returns a string containing the password
|
|
:param app_name:
|
|
The name of the application for passing through to the useragent
|
|
:param app_version:
|
|
The version of the application for passing through to the useragent
|
|
"""
|
|
|
|
self._cli_options = cli_options
|
|
self._api_version = api_version
|
|
self._pw_callback = pw_func
|
|
self._app_name = app_name
|
|
self._app_version = app_version
|
|
self.region_name = self._cli_options.region_name
|
|
self.interface = self._cli_options.interface
|
|
|
|
self.timing = self._cli_options.timing
|
|
|
|
self._auth_ref = None
|
|
self.session = None
|
|
|
|
# self.verify is the Requests-compatible form
|
|
# self.cacert is the form used by the legacy client libs
|
|
# self.insecure is not needed, use 'not self.verify'
|
|
self.cacert = None
|
|
self.verify, self.cert = self._cli_options.get_requests_verify_args()
|
|
# If there is a cacert and we're verifying, it'll be in the verify
|
|
# argument.
|
|
if not isinstance(self.verify, bool):
|
|
self.cacert = self.verify
|
|
|
|
# TODO(mordred) We also don't have any support for setting or passing
|
|
# in api_timeout, which is set in occ defaults but we skip occ defaults
|
|
# so set it here by hand and later we should potentially expose this
|
|
# directly to osc
|
|
self._cli_options.config['api_timeout'] = None
|
|
|
|
# Get logging from root logger
|
|
root_logger = logging.getLogger('')
|
|
LOG.setLevel(root_logger.getEffectiveLevel())
|
|
|
|
# NOTE(gyee): use this flag to indicate whether auth setup has already
|
|
# been completed. If so, do not perform auth setup again. The reason
|
|
# we need this flag is that we want to be able to perform auth setup
|
|
# outside of auth_ref as auth_ref itself is a property. We can not
|
|
# retrofit auth_ref to optionally skip scope check. Some operations
|
|
# do not require a scoped token. In those cases, we call setup_auth
|
|
# prior to dereferrencing auth_ref.
|
|
self._auth_setup_completed = False
|
|
|
|
def setup_auth(self):
|
|
"""Set up authentication
|
|
|
|
This is deferred until authentication is actually attempted because
|
|
it gets in the way of things that do not require auth.
|
|
"""
|
|
|
|
if self._auth_setup_completed:
|
|
return
|
|
|
|
# Stash the selected auth type
|
|
self.auth_plugin_name = self._cli_options.config['auth_type']
|
|
|
|
# Basic option checking to avoid unhelpful error messages
|
|
auth.check_valid_authentication_options(
|
|
self._cli_options,
|
|
self.auth_plugin_name,
|
|
)
|
|
|
|
# Horrible hack alert...must handle prompt for null password if
|
|
# password auth is requested.
|
|
if (self.auth_plugin_name.endswith('password') and
|
|
not self._cli_options.auth.get('password')):
|
|
self._cli_options.auth['password'] = self._pw_callback()
|
|
|
|
LOG.info('Using auth plugin: %s', self.auth_plugin_name)
|
|
LOG.debug('Using parameters %s',
|
|
strutils.mask_password(self._cli_options.auth))
|
|
self.auth = self._cli_options.get_auth()
|
|
|
|
if self._cli_options.service_provider:
|
|
self.auth = auth.get_keystone2keystone_auth(
|
|
self.auth,
|
|
self._cli_options.service_provider,
|
|
self._cli_options.remote_project_id,
|
|
self._cli_options.remote_project_name,
|
|
self._cli_options.remote_project_domain_id,
|
|
self._cli_options.remote_project_domain_name
|
|
)
|
|
|
|
self.session = self._cli_options.get_session()
|
|
|
|
self.sdk_connection = connection.Connection(config=self._cli_options)
|
|
|
|
# We might get auth_ref from SDK cacnihg
|
|
if hasattr(self.auth, 'auth_ref') and self.auth.auth_ref:
|
|
self._auth_ref = self.auth.auth_ref
|
|
|
|
self._auth_setup_completed = True
|
|
|
|
def validate_scope(self):
|
|
if self._auth_ref.project_id is not None:
|
|
# We already have a project scope.
|
|
return
|
|
if self._auth_ref.domain_id is not None:
|
|
# We already have a domain scope.
|
|
return
|
|
|
|
# We do not have a scoped token (and the user's default project scope
|
|
# was not implied), so the client needs to be explicitly configured
|
|
# with a scope.
|
|
auth.check_valid_authorization_options(
|
|
self._cli_options,
|
|
self.auth_plugin_name,
|
|
)
|
|
|
|
@property
|
|
def auth_ref(self):
|
|
"""Dereference will trigger an auth if it hasn't already"""
|
|
if (not self._auth_required or
|
|
self._cli_options.config['auth_type'] == 'none'):
|
|
# Forcibly skip auth if we know we do not need it
|
|
return None
|
|
if not self._auth_ref:
|
|
self.setup_auth()
|
|
LOG.debug("Get auth_ref")
|
|
self._auth_ref = self.auth.get_auth_ref(self.session)
|
|
return self._auth_ref
|
|
|
|
def _override_for(self, service_type):
|
|
key = '%s_endpoint_override' % service_type.replace('-', '_')
|
|
return self._cli_options.config.get(key)
|
|
|
|
def is_service_available(self, service_type):
|
|
"""Check if a service type is in the current Service Catalog"""
|
|
# If there is an override, assume the service is available
|
|
if self._override_for(service_type):
|
|
return True
|
|
# Trigger authentication necessary to discover endpoint
|
|
if self.auth_ref:
|
|
service_catalog = self.auth_ref.service_catalog
|
|
else:
|
|
service_catalog = None
|
|
# Assume that the network endpoint is enabled.
|
|
service_available = None
|
|
if service_catalog:
|
|
if service_type in service_catalog.get_endpoints():
|
|
service_available = True
|
|
LOG.debug("%s endpoint in service catalog", service_type)
|
|
else:
|
|
service_available = False
|
|
LOG.debug("No %s endpoint in service catalog", service_type)
|
|
else:
|
|
LOG.debug("No service catalog")
|
|
return service_available
|
|
|
|
def get_endpoint_for_service_type(self, service_type, region_name=None,
|
|
interface='public'):
|
|
"""Return the endpoint URL for the service type."""
|
|
# Overrides take priority unconditionally
|
|
override = self._override_for(service_type)
|
|
if override:
|
|
return override
|
|
|
|
if not interface:
|
|
interface = 'public'
|
|
# See if we are using password flow auth, i.e. we have a
|
|
# service catalog to select endpoints from
|
|
if self.auth_ref:
|
|
endpoint = self.auth_ref.service_catalog.url_for(
|
|
service_type=service_type,
|
|
region_name=region_name,
|
|
interface=interface,
|
|
)
|
|
else:
|
|
# Get the passed endpoint directly from the auth plugin
|
|
endpoint = self.auth.get_endpoint(
|
|
self.session,
|
|
interface=interface,
|
|
)
|
|
return endpoint
|
|
|
|
def get_configuration(self):
|
|
return copy.deepcopy(self._cli_options.config)
|