horizon/openstack_dashboard/api/keystone.py
Kieran Spear 7187d12a17 Add keystoneclient CredentialsManager if missing
The keystone v3 client doesn't include the 'ec2' manager, even
though the EC2 API is included in the default pipeline.

This commit creates the ec2 manager manually if it's missing
(and necessary). It uses the same call that the client itself
should have used.

Change-Id: I83e7bfa04cde5093c10bf2bc27af5ec03da4b48e
Closes-bug: #1236326
2013-10-10 13:43:32 +11:00

635 lines
22 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# Copyright 2012 OpenStack Foundation
# Copyright 2012 Nebula, Inc.
#
# 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
import urlparse
from django.conf import settings # noqa
from django.contrib.auth import logout # noqa
from django.utils.translation import ugettext_lazy as _ # noqa
from keystoneclient import exceptions as keystone_exceptions
from openstack_auth import backend
from horizon import exceptions
from horizon import messages
from openstack_dashboard.api import base
LOG = logging.getLogger(__name__)
DEFAULT_ROLE = None
# Set up our data structure for managing Identity API versions, and
# add a couple utility methods to it.
class IdentityAPIVersionManager(base.APIVersionManager):
def upgrade_v2_user(self, user):
if getattr(user, "project_id", None) is None:
user.project_id = getattr(user, "tenantId", None)
return user
def get_project_manager(self, *args, **kwargs):
if VERSIONS.active < 3:
manager = keystoneclient(*args, **kwargs).tenants
else:
manager = keystoneclient(*args, **kwargs).projects
return manager
VERSIONS = IdentityAPIVersionManager("identity", preferred_version=3)
# Import from oldest to newest so that "preferred" takes correct precedence.
try:
from keystoneclient.v2_0 import client as keystone_client_v2
VERSIONS.load_supported_version(2.0, {"client": keystone_client_v2})
except ImportError:
pass
try:
from keystoneclient.v3 import client as keystone_client_v3
VERSIONS.load_supported_version(3, {"client": keystone_client_v3})
except ImportError:
pass
class Service(base.APIDictWrapper):
""" Wrapper for a dict based on the service data from keystone. """
_attrs = ['id', 'type', 'name']
def __init__(self, service, region, *args, **kwargs):
super(Service, self).__init__(service, *args, **kwargs)
self.public_url = base.get_url_for_service(service, region,
'publicURL')
self.url = base.get_url_for_service(service, region, 'internalURL')
if self.url:
self.host = urlparse.urlparse(self.url).hostname
else:
self.host = None
self.disabled = None
self.region = region
def __unicode__(self):
if(self.type == "identity"):
return _("%(type)s (%(backend)s backend)") \
% {"type": self.type, "backend": keystone_backend_name()}
else:
return self.type
def __repr__(self):
return "<Service: %s>" % unicode(self)
def _get_endpoint_url(request, endpoint_type, catalog=None):
if getattr(request.user, "service_catalog", None):
url = base.url_for(request,
service_type='identity',
endpoint_type=endpoint_type)
else:
auth_url = getattr(settings, 'OPENSTACK_KEYSTONE_URL')
url = request.session.get('region_endpoint', auth_url)
# TODO(gabriel): When the Service Catalog no longer contains API versions
# in the endpoints this can be removed.
bits = urlparse.urlparse(url)
root = "://".join((bits.scheme, bits.netloc))
url = "%s/v%s" % (root, VERSIONS.active)
return url
def keystoneclient(request, admin=False):
"""Returns a client connected to the Keystone backend.
Several forms of authentication are supported:
* Username + password -> Unscoped authentication
* Username + password + tenant id -> Scoped authentication
* Unscoped token -> Unscoped authentication
* Unscoped token + tenant id -> Scoped authentication
* Scoped token -> Scoped authentication
Available services and data from the backend will vary depending on
whether the authentication was scoped or unscoped.
Lazy authentication if an ``endpoint`` parameter is provided.
Calls requiring the admin endpoint should have ``admin=True`` passed in
as a keyword argument.
The client is cached so that subsequent API calls during the same
request/response cycle don't have to be re-authenticated.
"""
user = request.user
if admin:
if not user.is_superuser:
raise exceptions.NotAuthorized
endpoint_type = 'adminURL'
else:
endpoint_type = getattr(settings,
'OPENSTACK_ENDPOINT_TYPE',
'internalURL')
api_version = VERSIONS.get_active_version()
# Take care of client connection caching/fetching a new client.
# Admin vs. non-admin clients are cached separately for token matching.
cache_attr = "_keystoneclient_admin" if admin \
else backend.KEYSTONE_CLIENT_ATTR
if hasattr(request, cache_attr) and (not user.token.id
or getattr(request, cache_attr).auth_token == user.token.id):
LOG.debug("Using cached client for token: %s" % user.token.id)
conn = getattr(request, cache_attr)
else:
endpoint = _get_endpoint_url(request, endpoint_type)
insecure = getattr(settings, 'OPENSTACK_SSL_NO_VERIFY', False)
cacert = getattr(settings, 'OPENSTACK_SSL_CACERT', None)
LOG.debug("Creating a new keystoneclient connection to %s." % endpoint)
remote_addr = request.environ.get('REMOTE_ADDR', '')
conn = api_version['client'].Client(token=user.token.id,
endpoint=endpoint,
original_ip=remote_addr,
insecure=insecure,
cacert=cacert,
auth_url=endpoint,
debug=settings.DEBUG)
setattr(request, cache_attr, conn)
return conn
def domain_create(request, name, description=None, enabled=None):
manager = keystoneclient(request, admin=True).domains
return manager.create(name,
description=description,
enabled=enabled)
def domain_get(request, domain_id):
manager = keystoneclient(request, admin=True).domains
return manager.get(domain_id)
def domain_delete(request, domain_id):
manager = keystoneclient(request, admin=True).domains
return manager.delete(domain_id)
def domain_list(request):
manager = keystoneclient(request, admin=True).domains
return manager.list()
def domain_update(request, domain_id, name=None, description=None,
enabled=None):
manager = keystoneclient(request, admin=True).domains
return manager.update(domain_id, name, description, enabled)
def tenant_create(request, name, description=None, enabled=None, domain=None):
manager = VERSIONS.get_project_manager(request, admin=True)
if VERSIONS.active < 3:
return manager.create(name, description, enabled)
else:
return manager.create(name, domain,
description=description,
enabled=enabled)
def get_default_domain(request):
"""
Gets the default domain object to use when creating Identity object.
Returns the domain context if is set, otherwise return the domain
of the logon user.
"""
domain_id = request.session.get("domain_context", None)
domain_name = request.session.get("domain_context_name", None)
# if running in Keystone V3 or later
if VERSIONS.active >= 3 and not domain_id:
# if no domain context set, default to users' domain
domain_id = request.user.user_domain_id
try:
domain = domain_get(request, domain_id)
domain_name = domain.name
except Exception:
LOG.warning("Unable to retrieve Domain: %s" % domain_id)
domain = base.APIDictWrapper({"id": domain_id,
"name": domain_name})
return domain
# TODO(gabriel): Is there ever a valid case for admin to be false here?
# A quick search through the codebase reveals that it's always called with
# admin=true so I suspect we could eliminate it entirely as with the other
# tenant commands.
def tenant_get(request, project, admin=True):
manager = VERSIONS.get_project_manager(request, admin=admin)
return manager.get(project)
def tenant_delete(request, project):
manager = VERSIONS.get_project_manager(request, admin=True)
return manager.delete(project)
def tenant_list(request, paginate=False, marker=None, domain=None, user=None):
manager = VERSIONS.get_project_manager(request, admin=True)
page_size = request.session.get('horizon_pagesize',
getattr(settings, 'API_RESULT_PAGE_SIZE',
20))
limit = None
if paginate:
limit = page_size + 1
has_more_data = False
if VERSIONS.active < 3:
tenants = manager.list(limit, marker)
if paginate and len(tenants) > page_size:
tenants.pop(-1)
has_more_data = True
else:
tenants = manager.list(domain=domain, user=user)
return (tenants, has_more_data)
def tenant_update(request, project, name=None, description=None,
enabled=None, domain=None):
manager = VERSIONS.get_project_manager(request, admin=True)
if VERSIONS.active < 3:
return manager.update(project, name, description, enabled)
else:
return manager.update(project, name=name, description=description,
enabled=enabled, domain=domain)
def user_list(request, project=None, domain=None, group=None):
if VERSIONS.active < 3:
kwargs = {"tenant_id": project}
else:
kwargs = {
"project": project,
"domain": domain,
"group": group
}
users = keystoneclient(request, admin=True).users.list(**kwargs)
return [VERSIONS.upgrade_v2_user(user) for user in users]
def user_create(request, name=None, email=None, password=None, project=None,
enabled=None, domain=None):
manager = keystoneclient(request, admin=True).users
if VERSIONS.active < 3:
user = manager.create(name, password, email, project, enabled)
return VERSIONS.upgrade_v2_user(user)
else:
return manager.create(name, password=password, email=email,
project=project, enabled=enabled, domain=domain)
def user_delete(request, user_id):
return keystoneclient(request, admin=True).users.delete(user_id)
def user_get(request, user_id, admin=True):
user = keystoneclient(request, admin=admin).users.get(user_id)
return VERSIONS.upgrade_v2_user(user)
def user_update(request, user, **data):
manager = keystoneclient(request, admin=True).users
error = None
if not keystone_can_edit_user():
raise keystone_exceptions.ClientException(405, _("Identity service "
"does not allow editing user data."))
# The v2 API updates user model, password and default project separately
if VERSIONS.active < 3:
password = data.pop('password')
project = data.pop('project')
# Update user details
try:
user = manager.update(user, **data)
except Exception:
error = exceptions.handle(request, ignore=True)
# Update default tenant
try:
user_update_tenant(request, user, project)
user.tenantId = project
except Exception:
error = exceptions.handle(request, ignore=True)
# Check for existing roles
# Show a warning if no role exists for the project
user_roles = roles_for_user(request, user, project)
if not user_roles:
messages.warning(request,
_('User %s has no role defined for '
'that project.')
% data.get('name', None))
# If present, update password
# FIXME(gabriel): password change should be its own form + view
if password:
try:
user_update_password(request, user, password)
if user == request.user.id:
logout(request)
except Exception:
error = exceptions.handle(request, ignore=True)
if error is not None:
raise error
# v3 API is so much simpler...
else:
if not data['password']:
data.pop('password')
user = manager.update(user, **data)
return VERSIONS.upgrade_v2_user(user)
def user_update_enabled(request, user, enabled):
manager = keystoneclient(request, admin=True).users
if VERSIONS.active < 3:
return manager.update_enabled(user, enabled)
else:
return manager.update(user, enabled=enabled)
def user_update_password(request, user, password, admin=True):
manager = keystoneclient(request, admin=admin).users
if VERSIONS.active < 3:
return manager.update_password(user, password)
else:
return manager.update(user, password=password)
def user_update_own_password(request, origpassword, password):
client = keystoneclient(request, admin=False)
if VERSIONS.active < 3:
client.user_id = request.user.id
return client.users.update_own_password(origpassword, password)
else:
return client.users.update(request.user.id, password=password)
def user_update_tenant(request, user, project, admin=True):
manager = keystoneclient(request, admin=admin).users
if VERSIONS.active < 3:
return manager.update_tenant(user, project)
else:
return manager.update(user, project=project)
def group_create(request, domain_id, name, description=None):
manager = keystoneclient(request, admin=True).groups
return manager.create(domain=domain_id,
name=name,
description=description)
def group_get(request, group_id, admin=True):
manager = keystoneclient(request, admin=admin).groups
return manager.get(group_id)
def group_delete(request, group_id):
manager = keystoneclient(request, admin=True).groups
return manager.delete(group_id)
def group_list(request, domain=None, project=None, user=None):
manager = keystoneclient(request, admin=True).groups
groups = manager.list(user=user)
# TODO(dklyle): once keystoneclient supports filtering by
# domain change this to use that cleaner implementation
if domain:
domain_groups = []
for group in groups:
if group.domain_id == domain:
domain_groups.append(group)
groups = domain_groups
if project:
project_groups = []
for group in groups:
roles = roles_for_group(request, group=group.id, project=project)
if roles and len(roles) > 0:
project_groups.append(group)
groups = project_groups
return groups
def group_update(request, group_id, name=None, description=None):
manager = keystoneclient(request, admin=True).groups
return manager.update(group=group_id,
name=name,
description=description)
def add_group_user(request, group_id, user_id):
manager = keystoneclient(request, admin=True).users
return manager.add_to_group(group=group_id, user=user_id)
def remove_group_user(request, group_id, user_id):
manager = keystoneclient(request, admin=True).users
return manager.remove_from_group(group=group_id, user=user_id)
def role_create(request, name):
manager = keystoneclient(request, admin=True).roles
return manager.create(name)
def role_get(request, role_id):
manager = keystoneclient(request, admin=True).roles
return manager.get(role_id)
def role_update(request, role_id, name=None):
manager = keystoneclient(request, admin=True).roles
return manager.update(role_id, name)
def role_delete(request, role_id):
manager = keystoneclient(request, admin=True).roles
return manager.delete(role_id)
def role_list(request):
""" Returns a global list of available roles. """
return keystoneclient(request, admin=True).roles.list()
def roles_for_user(request, user, project):
manager = keystoneclient(request, admin=True).roles
if VERSIONS.active < 3:
return manager.roles_for_user(user, project)
else:
return manager.list(user=user, project=project)
def add_tenant_user_role(request, project=None, user=None, role=None,
group=None, domain=None):
""" Adds a role for a user on a tenant. """
manager = keystoneclient(request, admin=True).roles
if VERSIONS.active < 3:
return manager.add_user_role(user, role, project)
else:
return manager.grant(role, user=user, project=project,
group=group, domain=domain)
def remove_tenant_user_role(request, project=None, user=None, role=None,
group=None, domain=None):
""" Removes a given single role for a user from a tenant. """
manager = keystoneclient(request, admin=True).roles
if VERSIONS.active < 3:
return manager.remove_user_role(user, role, project)
else:
return manager.revoke(role, user=user, project=project,
group=group, domain=domain)
def remove_tenant_user(request, project=None, user=None, domain=None):
""" Removes all roles from a user on a tenant, removing them from it. """
client = keystoneclient(request, admin=True)
roles = client.roles.roles_for_user(user, project)
for role in roles:
remove_tenant_user_role(request, user=user, role=role.id,
project=project, domain=domain)
def roles_for_group(request, group, domain=None, project=None):
manager = keystoneclient(request, admin=True).roles
return manager.list(group=group, domain=domain, project=project)
def add_group_role(request, role, group, domain=None, project=None):
""" Adds a role for a group on a domain or project ."""
manager = keystoneclient(request, admin=True).roles
return manager.grant(role=role, group=group, domain=domain,
project=project)
def remove_group_role(request, role, group, domain=None, project=None):
""" Removes a given single role for a group from a domain or project. """
manager = keystoneclient(request, admin=True).roles
return manager.revoke(role=role, group=group, project=project,
domain=domain)
def remove_group_roles(request, group, domain=None, project=None):
""" Removes all roles from a group on a domain or project,
removing them from it.
"""
client = keystoneclient(request, admin=True)
roles = client.roles.list(group=group, domain=domain, project=project)
for role in roles:
remove_group_role(request, role=role.id, group=group,
domain=domain, project=project)
def get_default_role(request):
"""
Gets the default role object from Keystone and saves it as a global
since this is configured in settings and should not change from request
to request. Supports lookup by name or id.
"""
global DEFAULT_ROLE
default = getattr(settings, "OPENSTACK_KEYSTONE_DEFAULT_ROLE", None)
if default and DEFAULT_ROLE is None:
try:
roles = keystoneclient(request, admin=True).roles.list()
except Exception:
roles = []
exceptions.handle(request)
for role in roles:
if role.id == default or role.name == default:
DEFAULT_ROLE = role
break
return DEFAULT_ROLE
def ec2_manager(request):
client = keystoneclient(request)
if hasattr(client, 'ec2'):
return client.ec2
# Keystoneclient 4.0 was released without the ec2 creds manager.
from keystoneclient.v2_0 import ec2
return ec2.CredentialsManager(client)
def list_ec2_credentials(request, user_id):
return ec2_manager(request).list(user_id)
def create_ec2_credentials(request, user_id, tenant_id):
return ec2_manager(request).create(user_id, tenant_id)
def get_user_ec2_credentials(request, user_id, access_token):
return ec2_manager(request).get(user_id, access_token)
def keystone_can_edit_domain():
backend_settings = getattr(settings, "OPENSTACK_KEYSTONE_BACKEND", {})
can_edit_domain = backend_settings.get('can_edit_domain', True)
multi_domain_support = getattr(settings,
'OPENSTACK_KEYSTONE_MULTIDOMAIN_SUPPORT',
False)
return can_edit_domain and multi_domain_support
def keystone_can_edit_user():
backend_settings = getattr(settings, "OPENSTACK_KEYSTONE_BACKEND", {})
return backend_settings.get('can_edit_user', True)
def keystone_can_edit_project():
backend_settings = getattr(settings, "OPENSTACK_KEYSTONE_BACKEND", {})
return backend_settings.get('can_edit_project', True)
def keystone_can_edit_group():
backend_settings = getattr(settings, "OPENSTACK_KEYSTONE_BACKEND", {})
return backend_settings.get('can_edit_group', True)
def keystone_can_edit_role():
backend_settings = getattr(settings, "OPENSTACK_KEYSTONE_BACKEND", {})
return backend_settings.get('can_edit_role', True)
def keystone_backend_name():
if hasattr(settings, "OPENSTACK_KEYSTONE_BACKEND"):
return settings.OPENSTACK_KEYSTONE_BACKEND['name']
else:
return 'unknown'