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# Copyright 2011 Nebula, Inc.
# All Rights Reserved.
#
# 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.
import logging
from keystoneclient.auth.identity import v2 as v2_auth
from keystoneclient import exceptions
from keystoneclient import httpclient
from keystoneclient.v2_0 import ec2
from keystoneclient.v2_0 import endpoints
from keystoneclient.v2_0 import extensions
from keystoneclient.v2_0 import roles
from keystoneclient.v2_0 import services
from keystoneclient.v2_0 import tenants
from keystoneclient.v2_0 import tokens
from keystoneclient.v2_0 import users
_logger = logging.getLogger(__name__)
class Client(httpclient.HTTPClient):
"""Client for the OpenStack Keystone v2.0 API.
:param string username: Username for authentication. (optional)
:param string password: Password for authentication. (optional)
:param string token: Token for authentication. (optional)
:param string tenant_id: Tenant id. (optional)
:param string tenant_name: Tenant name. (optional)
:param string auth_url: Keystone service endpoint for authorization.
:param string region_name: Name of a region to select when choosing an
endpoint from the service catalog.
:param string endpoint: A user-supplied endpoint URL for the keystone
service. Lazy-authentication is possible for API
service calls if endpoint is set at
instantiation.(optional)
:param integer timeout: Allows customization of the timeout for client
http requests. (optional)
:param string original_ip: The original IP of the requesting user
which will be sent to Keystone in a
'Forwarded' header. (optional)
:param string cert: Path to the Privacy Enhanced Mail (PEM) file which
contains the corresponding X.509 client certificate
needed to established two-way SSL connection with
the identity service. (optional)
:param string key: Path to the Privacy Enhanced Mail (PEM) file which
contains the unencrypted client private key needed
to established two-way SSL connection with the
identity service. (optional)
:param string cacert: Path to the Privacy Enhanced Mail (PEM) file which
contains the trusted authority X.509 certificates
needed to established SSL connection with the
identity service. (optional)
:param boolean insecure: Does not perform X.509 certificate validation
when establishing SSL connection with identity
service. default: False (optional)
:param dict auth_ref: To allow for consumers of the client to manage their
own caching strategy, you may initialize a client
with a previously captured auth_reference (token)
:param boolean debug: Enables debug logging of all request and responses
to keystone. default False (option)
.. warning::
If debug is enabled, it may show passwords in plain text as a part of
its output.
The client can be created and used like a user or in a strictly
bootstrap mode. Normal operation expects a username, password, auth_url,
and tenant_name or id to be provided. Other values will be lazily loaded
as needed from the service catalog.
Example::
>>> from keystoneclient.v2_0 import client
>>> keystone = client.Client(username=USER,
... password=PASS,
... tenant_name=TENANT_NAME,
... auth_url=KEYSTONE_URL)
>>> keystone.tenants.list()
...
>>> user = keystone.users.get(USER_ID)
>>> user.delete()
Once authenticated, you can store and attempt to re-use the
authenticated token. the auth_ref property on the client
returns as a dictionary-like-object so that you can export and
cache it, re-using it when initiating another client::
>>> from keystoneclient.v2_0 import client
>>> keystone = client.Client(username=USER,
... password=PASS,
... tenant_name=TENANT_NAME,
... auth_url=KEYSTONE_URL)
>>> auth_ref = keystone.auth_ref
>>> # pickle or whatever you like here
>>> new_client = client.Client(auth_ref=auth_ref)
Alternatively, you can provide the administrative token configured in
keystone and an endpoint to communicate with directly. See
(``admin_token`` in ``keystone.conf``) In this case, authenticate()
is not needed, and no service catalog will be loaded.
Example::
>>> from keystoneclient.v2_0 import client
>>> admin_client = client.Client(
... token='12345secret7890',
... endpoint='http://localhost:35357/v2.0')
>>> keystone.tenants.list()
"""
version = 'v2.0'
def __init__(self, **kwargs):
"""Initialize a new client for the Keystone v2.0 API."""
super(Client, self).__init__(**kwargs)
self.endpoints = endpoints.EndpointManager(self)
self.extensions = extensions.ExtensionManager(self)
self.roles = roles.RoleManager(self)
self.services = services.ServiceManager(self)
self.tenants = tenants.TenantManager(self)
self.tokens = tokens.TokenManager(self)
self.users = users.UserManager(self)
# extensions
self.ec2 = ec2.CredentialsManager(self)
# DEPRECATED: if session is passed then we go to the new behaviour of
# authenticating on the first required call.
if not kwargs.get('session') and self.management_url is None:
self.authenticate()
def get_raw_token_from_identity_service(self, auth_url, username=None,
password=None, tenant_name=None,
tenant_id=None, token=None,
project_name=None, project_id=None,
trust_id=None,
**kwargs):
"""Authenticate against the v2 Identity API.
If a token is provided it will be used in preference over username and
password.
:returns: access.AccessInfo if authentication was successful.
:raises: AuthorizationFailure if unable to authenticate or validate
the existing authorization token
"""
try:
if auth_url is None:
raise ValueError("Cannot authenticate without an auth_url")
new_kwargs = {'trust_id': trust_id,
'tenant_id': project_id or tenant_id,
'tenant_name': project_name or tenant_name}
if token:
plugin = v2_auth.Token(auth_url, token, **new_kwargs)
elif username and password:
plugin = v2_auth.Password(auth_url, username, password,
**new_kwargs)
else:
msg = 'A username and password or token is required.'
raise exceptions.AuthorizationFailure(msg)
return plugin.get_auth_ref(self.session)
except (exceptions.AuthorizationFailure, exceptions.Unauthorized):
_logger.debug("Authorization Failed.")
raise
except exceptions.EndpointNotFound:
msg = 'There was no suitable authentication url for this request'
raise exceptions.AuthorizationFailure(msg)
except Exception as e:
raise exceptions.AuthorizationFailure("Authorization Failed: "
"%s" % e)
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