1a252cb5e8
https://docs.djangoproject.com/en/2.0/releases/1.10/#user-is-auth-anon-deprecation blueprint django2-support Change-Id: I57a39417f0595eae8d1c06d7e61d0a67078bb231
424 lines
15 KiB
Python
424 lines
15 KiB
Python
# 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 datetime
|
|
import hashlib
|
|
import logging
|
|
|
|
from django.conf import settings
|
|
from django.contrib.auth import models
|
|
from django.db import models as db_models
|
|
from keystoneauth1 import exceptions as keystone_exceptions
|
|
from keystoneclient.common import cms as keystone_cms
|
|
import six
|
|
|
|
from openstack_auth import utils
|
|
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
_TOKEN_HASH_ENABLED = getattr(settings, 'OPENSTACK_TOKEN_HASH_ENABLED', True)
|
|
|
|
|
|
def set_session_from_user(request, user):
|
|
request.session['token'] = user.token
|
|
request.session['user_id'] = user.id
|
|
request.session['region_endpoint'] = user.endpoint
|
|
request.session['services_region'] = user.services_region
|
|
# Update the user object cached in the request
|
|
request._cached_user = user
|
|
request.user = user
|
|
|
|
|
|
def create_user_from_token(request, token, endpoint, services_region=None):
|
|
# if the region is provided, use that, otherwise use the preferred region
|
|
default_service_regions = getattr(settings, 'DEFAULT_SERVICE_REGIONS', {})
|
|
default_service_region = default_service_regions.get(endpoint)
|
|
svc_region = services_region or \
|
|
utils.default_services_region(token.serviceCatalog, request,
|
|
selected_region=default_service_region)
|
|
return User(id=token.user['id'],
|
|
token=token,
|
|
user=token.user['name'],
|
|
password_expires_at=token.user['password_expires_at'],
|
|
user_domain_id=token.user_domain_id,
|
|
# We need to consider already logged-in users with an old
|
|
# version of Token without user_domain_name.
|
|
user_domain_name=getattr(token, 'user_domain_name', None),
|
|
project_id=token.project['id'],
|
|
project_name=token.project['name'],
|
|
domain_id=token.domain['id'],
|
|
domain_name=token.domain['name'],
|
|
enabled=True,
|
|
service_catalog=token.serviceCatalog,
|
|
roles=token.roles,
|
|
endpoint=endpoint,
|
|
services_region=svc_region,
|
|
is_federated=getattr(token, 'is_federated', False),
|
|
unscoped_token=getattr(token, 'unscoped_token',
|
|
request.session.get('unscoped_token')))
|
|
|
|
|
|
class Token(object):
|
|
"""Encapsulates the AccessInfo object from keystoneclient.
|
|
|
|
Token object provides a consistent interface for accessing the keystone
|
|
token information and service catalog.
|
|
|
|
Added for maintaining backward compatibility with horizon that expects
|
|
Token object in the user object.
|
|
"""
|
|
def __init__(self, auth_ref, unscoped_token=None):
|
|
# User-related attributes
|
|
user = {'id': auth_ref.user_id, 'name': auth_ref.username}
|
|
data = getattr(auth_ref, '_data', {})
|
|
expiration_date = data.get('token', {}).get('user', {})\
|
|
.get('password_expires_at')
|
|
user['password_expires_at'] = expiration_date
|
|
self.user = user
|
|
self.user_domain_id = auth_ref.user_domain_id
|
|
self.user_domain_name = auth_ref.user_domain_name
|
|
|
|
# Token-related attributes
|
|
self.id = auth_ref.auth_token
|
|
self.unscoped_token = unscoped_token
|
|
if _TOKEN_HASH_ENABLED and self._is_pki_token(self.id):
|
|
algorithm = getattr(settings, 'OPENSTACK_TOKEN_HASH_ALGORITHM',
|
|
'md5')
|
|
hasher = hashlib.new(algorithm)
|
|
hasher.update(self.id.encode('utf-8'))
|
|
self.id = hasher.hexdigest()
|
|
# Only hash unscoped token if needed
|
|
if self._is_pki_token(self.unscoped_token):
|
|
hasher = hashlib.new(algorithm)
|
|
hasher.update(self.unscoped_token.encode('utf-8'))
|
|
self.unscoped_token = hasher.hexdigest()
|
|
self.expires = auth_ref.expires
|
|
|
|
# Project-related attributes
|
|
project = {}
|
|
project['id'] = auth_ref.project_id
|
|
project['name'] = auth_ref.project_name
|
|
project['is_admin_project'] = getattr(auth_ref, 'is_admin_project',
|
|
False)
|
|
project['domain_id'] = getattr(auth_ref, 'project_domain_id', None)
|
|
self.project = project
|
|
self.tenant = self.project
|
|
|
|
# Domain-related attributes
|
|
domain = {}
|
|
domain['id'] = auth_ref.domain_id
|
|
domain['name'] = auth_ref.domain_name
|
|
self.domain = domain
|
|
|
|
# Federation-related attributes
|
|
self.is_federated = auth_ref.is_federated
|
|
self.roles = [{'name': role} for role in auth_ref.role_names]
|
|
self.serviceCatalog = auth_ref.service_catalog.catalog
|
|
|
|
def _is_pki_token(self, token):
|
|
"""Determines if this is a pki-based token (pki or pkiz)"""
|
|
if token is None:
|
|
return False
|
|
return (keystone_cms.is_ans1_token(token)
|
|
or keystone_cms.is_pkiz(token))
|
|
|
|
|
|
class User(models.AbstractBaseUser, models.AnonymousUser):
|
|
"""A User class with some extra special sauce for Keystone.
|
|
|
|
In addition to the standard Django user attributes, this class also has
|
|
the following:
|
|
|
|
.. attribute:: token
|
|
|
|
The Keystone token object associated with the current user/tenant.
|
|
|
|
The token object is deprecated, user auth_ref instead.
|
|
|
|
.. attribute:: tenant_id
|
|
|
|
The id of the Keystone tenant for the current user/token.
|
|
|
|
The tenant_id keyword argument is deprecated, use project_id instead.
|
|
|
|
.. attribute:: tenant_name
|
|
|
|
The name of the Keystone tenant for the current user/token.
|
|
|
|
The tenant_name keyword argument is deprecated, use project_name
|
|
instead.
|
|
|
|
.. attribute:: project_id
|
|
|
|
The id of the Keystone project for the current user/token.
|
|
|
|
.. attribute:: project_name
|
|
|
|
The name of the Keystone project for the current user/token.
|
|
|
|
.. attribute:: service_catalog
|
|
|
|
The ``ServiceCatalog`` data returned by Keystone.
|
|
|
|
.. attribute:: roles
|
|
|
|
A list of dictionaries containing role names and ids as returned
|
|
by Keystone.
|
|
|
|
.. attribute:: services_region
|
|
|
|
A list of non-identity service endpoint regions extracted from the
|
|
service catalog.
|
|
|
|
.. attribute:: user_domain_id
|
|
|
|
The domain id of the current user.
|
|
|
|
.. attribute:: user_domain_name
|
|
|
|
The domain name of the current user.
|
|
|
|
.. attribute:: domain_id
|
|
|
|
The id of the Keystone domain scoped for the current user/token.
|
|
|
|
.. attribute:: is_federated
|
|
|
|
Whether user is federated Keystone user. (Boolean)
|
|
|
|
.. attribute:: unscoped_token
|
|
|
|
Unscoped Keystone token.
|
|
|
|
.. attribute:: password_expires_at
|
|
|
|
Password expiration date. This attribute could be None when using
|
|
keystone version < 3.0 or if the feature is not enabled in keystone.
|
|
|
|
"""
|
|
|
|
keystone_user_id = db_models.CharField(primary_key=True, max_length=255)
|
|
USERNAME_FIELD = 'keystone_user_id'
|
|
|
|
def __init__(self, id=None, token=None, user=None, tenant_id=None,
|
|
service_catalog=None, tenant_name=None, roles=None,
|
|
authorized_tenants=None, endpoint=None, enabled=False,
|
|
services_region=None, user_domain_id=None,
|
|
user_domain_name=None, domain_id=None, domain_name=None,
|
|
project_id=None, project_name=None, is_federated=False,
|
|
unscoped_token=None, password=None, password_expires_at=None):
|
|
self.id = id
|
|
self.pk = id
|
|
self.token = token
|
|
self.keystone_user_id = id
|
|
self.username = user
|
|
self.user_domain_id = user_domain_id
|
|
self.user_domain_name = user_domain_name
|
|
self.domain_id = domain_id
|
|
self.domain_name = domain_name
|
|
self.project_id = project_id or tenant_id
|
|
self.project_name = project_name or tenant_name
|
|
self.service_catalog = service_catalog
|
|
self._services_region = (
|
|
services_region
|
|
or utils.default_services_region(service_catalog)
|
|
)
|
|
self.roles = roles or []
|
|
self.endpoint = endpoint
|
|
self.enabled = enabled
|
|
self._authorized_tenants = authorized_tenants
|
|
self.is_federated = is_federated
|
|
self.password_expires_at = password_expires_at
|
|
|
|
# Unscoped token is used for listing user's project that works
|
|
# for both federated and keystone user.
|
|
self.unscoped_token = unscoped_token
|
|
|
|
# List of variables to be deprecated.
|
|
self.tenant_id = self.project_id
|
|
self.tenant_name = self.project_name
|
|
|
|
# Required by AbstractBaseUser
|
|
self.password = None
|
|
|
|
def __unicode__(self):
|
|
return self.username
|
|
|
|
def __repr__(self):
|
|
return "<%s: %s>" % (self.__class__.__name__, self.username)
|
|
|
|
def is_token_expired(self, margin=None):
|
|
"""Determine if the token is expired.
|
|
|
|
:returns:
|
|
``True`` if the token is expired, ``False`` if not, and
|
|
``None`` if there is no token set.
|
|
|
|
:param margin:
|
|
A security time margin in seconds before real expiration.
|
|
Will return ``True`` if the token expires in less than ``margin``
|
|
seconds of time.
|
|
A default margin can be set by the TOKEN_TIMEOUT_MARGIN in the
|
|
django settings.
|
|
|
|
"""
|
|
if self.token is None:
|
|
return None
|
|
return not utils.is_token_valid(self.token, margin)
|
|
|
|
@property
|
|
def is_authenticated(self):
|
|
"""Checks for a valid authentication."""
|
|
if (self.token is not None and utils.is_token_valid(self.token)):
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
@property
|
|
def is_anonymous(self):
|
|
"""Return if the user is not authenticated.
|
|
|
|
:returns: ``True`` if not authenticated,``False`` otherwise.
|
|
"""
|
|
return not self.is_authenticated
|
|
|
|
@property
|
|
def is_active(self):
|
|
return self.enabled
|
|
|
|
@property
|
|
def is_superuser(self):
|
|
"""Evaluates whether this user has admin privileges.
|
|
|
|
:returns: ``True`` or ``False``.
|
|
"""
|
|
admin_roles = utils.get_admin_roles()
|
|
user_roles = {role['name'].lower() for role in self.roles}
|
|
return not admin_roles.isdisjoint(user_roles)
|
|
|
|
@property
|
|
def authorized_tenants(self):
|
|
"""Returns a memoized list of tenants this user may access."""
|
|
if self.is_authenticated and self._authorized_tenants is None:
|
|
endpoint = self.endpoint
|
|
try:
|
|
self._authorized_tenants = utils.get_project_list(
|
|
user_id=self.id,
|
|
auth_url=endpoint,
|
|
token=self.unscoped_token,
|
|
is_federated=self.is_federated)
|
|
except (keystone_exceptions.ClientException,
|
|
keystone_exceptions.AuthorizationFailure):
|
|
LOG.exception('Unable to retrieve project list.')
|
|
return self._authorized_tenants or []
|
|
|
|
@authorized_tenants.setter
|
|
def authorized_tenants(self, tenant_list):
|
|
self._authorized_tenants = tenant_list
|
|
|
|
@property
|
|
def services_region(self):
|
|
return self._services_region
|
|
|
|
@services_region.setter
|
|
def services_region(self, region):
|
|
self._services_region = region
|
|
|
|
@property
|
|
def available_services_regions(self):
|
|
"""Returns list of unique region name values in service catalog."""
|
|
regions = []
|
|
if self.service_catalog:
|
|
for service in self.service_catalog:
|
|
service_type = service.get('type')
|
|
if service_type is None or service_type == 'identity':
|
|
continue
|
|
for endpoint in service.get('endpoints', []):
|
|
region = utils.get_endpoint_region(endpoint)
|
|
if region not in regions:
|
|
regions.append(region)
|
|
return regions
|
|
|
|
def save(*args, **kwargs):
|
|
# Presume we can't write to Keystone.
|
|
pass
|
|
|
|
def delete(*args, **kwargs):
|
|
# Presume we can't write to Keystone.
|
|
pass
|
|
|
|
# Check for OR'd permission rules, check that user has one of the
|
|
# required permission.
|
|
def has_a_matching_perm(self, perm_list, obj=None):
|
|
"""Returns True if the user has one of the specified permissions.
|
|
|
|
If object is passed, it checks if the user has any of the required
|
|
perms for this object.
|
|
"""
|
|
# If there are no permissions to check, just return true
|
|
if not perm_list:
|
|
return True
|
|
# Check that user has at least one of the required permissions.
|
|
for perm in perm_list:
|
|
if self.has_perm(perm, obj):
|
|
return True
|
|
return False
|
|
|
|
# Override the default has_perms method. Allowing for more
|
|
# complex combinations of permissions. Will check for logical AND of
|
|
# all top level permissions. Will use logical OR for all first level
|
|
# tuples (check that use has one permissions in the tuple)
|
|
#
|
|
# Examples:
|
|
# Checks for all required permissions
|
|
# ('openstack.roles.admin', 'openstack.roles.L3-support')
|
|
#
|
|
# Checks for admin AND (L2 or L3)
|
|
# ('openstack.roles.admin', ('openstack.roles.L3-support',
|
|
# 'openstack.roles.L2-support'),)
|
|
def has_perms(self, perm_list, obj=None):
|
|
"""Returns True if the user has all of the specified permissions.
|
|
|
|
Tuples in the list will possess the required permissions if
|
|
the user has a permissions matching one of the elements of
|
|
that tuple
|
|
"""
|
|
# If there are no permissions to check, just return true
|
|
if not perm_list:
|
|
return True
|
|
for perm in perm_list:
|
|
if isinstance(perm, six.string_types):
|
|
# check that the permission matches
|
|
if not self.has_perm(perm, obj):
|
|
return False
|
|
else:
|
|
# check that a permission in the tuple matches
|
|
if not self.has_a_matching_perm(perm, obj):
|
|
return False
|
|
return True
|
|
|
|
def time_until_expiration(self):
|
|
"""Returns the number of remaining days until user's password expires.
|
|
|
|
Calculates the number days until the user must change their password,
|
|
once the password expires the user will not able to log in until an
|
|
admin changes its password.
|
|
"""
|
|
if self.password_expires_at is not None:
|
|
expiration_date = datetime.datetime.strptime(
|
|
self.password_expires_at, "%Y-%m-%dT%H:%M:%S.%f")
|
|
return expiration_date - datetime.datetime.now()
|
|
|
|
class Meta(object):
|
|
app_label = 'openstack_auth'
|