362 lines
13 KiB
Python
362 lines
13 KiB
Python
# Copyright 2012 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.
|
|
from __future__ import absolute_import
|
|
import uuid
|
|
|
|
import ldap
|
|
import ldap.filter
|
|
|
|
from keystone import clean
|
|
from keystone.common import dependency
|
|
from keystone.common import driver_hints
|
|
from keystone.common import ldap as common_ldap
|
|
from keystone.common import models
|
|
from keystone.common import utils
|
|
from keystone import config
|
|
from keystone import exception
|
|
from keystone import identity
|
|
from keystone.openstack.common.gettextutils import _
|
|
from keystone.openstack.common import log
|
|
|
|
|
|
CONF = config.CONF
|
|
LOG = log.getLogger(__name__)
|
|
|
|
|
|
@dependency.requires('assignment_api')
|
|
class Identity(identity.Driver):
|
|
def __init__(self, conf=None):
|
|
super(Identity, self).__init__()
|
|
if conf is None:
|
|
conf = CONF
|
|
self.user = UserApi(conf)
|
|
self.group = GroupApi(conf)
|
|
|
|
def default_assignment_driver(self):
|
|
return "keystone.assignment.backends.ldap.Assignment"
|
|
|
|
def is_domain_aware(self):
|
|
return False
|
|
|
|
# Identity interface
|
|
|
|
def authenticate(self, user_id, password):
|
|
try:
|
|
user_ref = self._get_user(user_id)
|
|
except exception.UserNotFound:
|
|
raise AssertionError(_('Invalid user / password'))
|
|
if not user_id or not password:
|
|
raise AssertionError(_('Invalid user / password'))
|
|
conn = None
|
|
try:
|
|
conn = self.user.get_connection(user_ref['dn'],
|
|
password)
|
|
if not conn:
|
|
raise AssertionError(_('Invalid user / password'))
|
|
except Exception:
|
|
raise AssertionError(_('Invalid user / password'))
|
|
finally:
|
|
if conn:
|
|
conn.unbind_s()
|
|
return self.user.filter_attributes(user_ref)
|
|
|
|
def _get_user(self, user_id):
|
|
return self.user.get(user_id)
|
|
|
|
def get_user(self, user_id):
|
|
return self.user.get_filtered(user_id)
|
|
|
|
def list_users(self, hints):
|
|
return self.user.get_all_filtered()
|
|
|
|
def get_user_by_name(self, user_name, domain_id):
|
|
# domain_id will already have been handled in the Manager layer,
|
|
# parameter left in so this matches the Driver specification
|
|
return self.user.filter_attributes(self.user.get_by_name(user_name))
|
|
|
|
# CRUD
|
|
def create_user(self, user_id, user):
|
|
self.user.check_allow_create()
|
|
user_ref = self.user.create(user)
|
|
return self.user.filter_attributes(user_ref)
|
|
|
|
def update_user(self, user_id, user):
|
|
self.user.check_allow_update()
|
|
if 'id' in user and user['id'] != user_id:
|
|
raise exception.ValidationError(_('Cannot change user ID'))
|
|
old_obj = self.user.get(user_id)
|
|
if 'name' in user and old_obj.get('name') != user['name']:
|
|
raise exception.Conflict(_('Cannot change user name'))
|
|
|
|
if self.user.enabled_mask:
|
|
self.user.mask_enabled_attribute(user)
|
|
self.user.update(user_id, user, old_obj)
|
|
return self.user.get_filtered(user_id)
|
|
|
|
def delete_user(self, user_id):
|
|
self.user.check_allow_delete()
|
|
self.assignment_api.delete_user(user_id)
|
|
user = self.user.get(user_id)
|
|
user_dn = user['dn']
|
|
groups = self.group.list_user_groups(user_dn)
|
|
for group in groups:
|
|
self.group.remove_user(user_dn, group['id'], user_id)
|
|
|
|
if hasattr(user, 'tenant_id'):
|
|
self.project.remove_user(user.tenant_id, user_dn)
|
|
self.user.delete(user_id)
|
|
|
|
def create_group(self, group_id, group):
|
|
self.group.check_allow_create()
|
|
group['name'] = clean.group_name(group['name'])
|
|
return common_ldap.filter_entity(self.group.create(group))
|
|
|
|
def get_group(self, group_id):
|
|
return self.group.get_filtered(group_id)
|
|
|
|
def update_group(self, group_id, group):
|
|
self.group.check_allow_update()
|
|
if 'name' in group:
|
|
group['name'] = clean.group_name(group['name'])
|
|
return common_ldap.filter_entity(self.group.update(group_id, group))
|
|
|
|
def delete_group(self, group_id):
|
|
self.group.check_allow_delete()
|
|
return self.group.delete(group_id)
|
|
|
|
def add_user_to_group(self, user_id, group_id):
|
|
user_ref = self._get_user(user_id)
|
|
user_dn = user_ref['dn']
|
|
self.group.add_user(user_dn, group_id, user_id)
|
|
|
|
def remove_user_from_group(self, user_id, group_id):
|
|
user_ref = self._get_user(user_id)
|
|
user_dn = user_ref['dn']
|
|
self.group.remove_user(user_dn, group_id, user_id)
|
|
|
|
def list_groups_for_user(self, user_id, hints):
|
|
user_ref = self._get_user(user_id)
|
|
user_dn = user_ref['dn']
|
|
return self.group.list_user_groups_filtered(user_dn)
|
|
|
|
def list_groups(self, hints):
|
|
return self.group.get_all_filtered()
|
|
|
|
def list_users_in_group(self, group_id, hints):
|
|
users = []
|
|
for user_dn in self.group.list_group_users(group_id):
|
|
user_id = self.user._dn_to_id(user_dn)
|
|
try:
|
|
users.append(self.user.get_filtered(user_id))
|
|
except exception.UserNotFound:
|
|
LOG.debug(_("Group member '%(user_dn)s' not found in"
|
|
" '%(group_id)s'. The user should be removed"
|
|
" from the group. The user will be ignored."),
|
|
dict(user_dn=user_dn, group_id=group_id))
|
|
return users
|
|
|
|
def check_user_in_group(self, user_id, group_id):
|
|
user_refs = self.list_users_in_group(group_id, driver_hints.Hints())
|
|
for x in user_refs:
|
|
if x['id'] == user_id:
|
|
break
|
|
else:
|
|
# Try to fetch the user to see if it even exists. This
|
|
# will raise a more accurate exception.
|
|
self.get_user(user_id)
|
|
raise exception.NotFound(_("User '%(user_id)s' not found in"
|
|
" group '%(group_id)s'") %
|
|
{'user_id': user_id,
|
|
'group_id': group_id})
|
|
|
|
|
|
# TODO(termie): turn this into a data object and move logic to driver
|
|
class UserApi(common_ldap.EnabledEmuMixIn, common_ldap.BaseLdap):
|
|
DEFAULT_OU = 'ou=Users'
|
|
DEFAULT_STRUCTURAL_CLASSES = ['person']
|
|
DEFAULT_ID_ATTR = 'cn'
|
|
DEFAULT_OBJECTCLASS = 'inetOrgPerson'
|
|
NotFound = exception.UserNotFound
|
|
options_name = 'user'
|
|
attribute_options_names = {'password': 'pass',
|
|
'email': 'mail',
|
|
'name': 'name',
|
|
'enabled': 'enabled',
|
|
'default_project_id': 'default_project_id'}
|
|
immutable_attrs = ['id']
|
|
|
|
model = models.User
|
|
|
|
def __init__(self, conf):
|
|
super(UserApi, self).__init__(conf)
|
|
self.enabled_mask = conf.ldap.user_enabled_mask
|
|
self.enabled_default = conf.ldap.user_enabled_default
|
|
|
|
def _ldap_res_to_model(self, res):
|
|
obj = super(UserApi, self)._ldap_res_to_model(res)
|
|
if self.enabled_mask != 0:
|
|
enabled = int(obj.get('enabled', self.enabled_default))
|
|
obj['enabled'] = ((enabled & self.enabled_mask) !=
|
|
self.enabled_mask)
|
|
obj['dn'] = res[0]
|
|
|
|
return obj
|
|
|
|
def mask_enabled_attribute(self, values):
|
|
value = values['enabled']
|
|
values.setdefault('enabled_nomask', int(self.enabled_default))
|
|
if value != ((values['enabled_nomask'] & self.enabled_mask) !=
|
|
self.enabled_mask):
|
|
values['enabled_nomask'] ^= self.enabled_mask
|
|
values['enabled'] = values['enabled_nomask']
|
|
del values['enabled_nomask']
|
|
|
|
def create(self, values):
|
|
if self.enabled_mask:
|
|
orig_enabled = values['enabled']
|
|
self.mask_enabled_attribute(values)
|
|
values = super(UserApi, self).create(values)
|
|
if self.enabled_mask:
|
|
values['enabled'] = orig_enabled
|
|
return values
|
|
|
|
def check_password(self, user_id, password):
|
|
user = self.get(user_id)
|
|
return utils.check_password(password, user.password)
|
|
|
|
def get_filtered(self, user_id):
|
|
user = self.get(user_id)
|
|
return self.filter_attributes(user)
|
|
|
|
def get_all_filtered(self):
|
|
return [self.filter_attributes(user) for user in self.get_all()]
|
|
|
|
def filter_attributes(self, user):
|
|
return identity.filter_user(common_ldap.filter_entity(user))
|
|
|
|
|
|
class GroupApi(common_ldap.BaseLdap):
|
|
DEFAULT_OU = 'ou=UserGroups'
|
|
DEFAULT_STRUCTURAL_CLASSES = []
|
|
DEFAULT_OBJECTCLASS = 'groupOfNames'
|
|
DEFAULT_ID_ATTR = 'cn'
|
|
DEFAULT_MEMBER_ATTRIBUTE = 'member'
|
|
NotFound = exception.GroupNotFound
|
|
options_name = 'group'
|
|
attribute_options_names = {'description': 'desc',
|
|
'name': 'name'}
|
|
immutable_attrs = ['name']
|
|
model = models.Group
|
|
|
|
def _ldap_res_to_model(self, res):
|
|
model = super(GroupApi, self)._ldap_res_to_model(res)
|
|
model['dn'] = res[0]
|
|
return model
|
|
|
|
def __init__(self, conf):
|
|
super(GroupApi, self).__init__(conf)
|
|
self.member_attribute = (getattr(conf.ldap, 'group_member_attribute')
|
|
or self.DEFAULT_MEMBER_ATTRIBUTE)
|
|
|
|
def create(self, values):
|
|
data = values.copy()
|
|
if data.get('id') is None:
|
|
data['id'] = uuid.uuid4().hex
|
|
if 'description' in data and data['description'] in ['', None]:
|
|
data.pop('description')
|
|
return super(GroupApi, self).create(data)
|
|
|
|
def delete(self, group_id):
|
|
if self.subtree_delete_enabled:
|
|
super(GroupApi, self).deleteTree(group_id)
|
|
else:
|
|
# TODO(spzala): this is only placeholder for group and domain
|
|
# role support which will be added under bug 1101287
|
|
|
|
group_ref = self.get(group_id)
|
|
group_dn = group_ref['dn']
|
|
if group_dn:
|
|
self._delete_tree_nodes(group_dn, ldap.SCOPE_ONELEVEL)
|
|
super(GroupApi, self).delete(group_id)
|
|
|
|
def update(self, group_id, values):
|
|
old_obj = self.get(group_id)
|
|
return super(GroupApi, self).update(group_id, values, old_obj)
|
|
|
|
def add_user(self, user_dn, group_id, user_id):
|
|
group_ref = self.get(group_id)
|
|
group_dn = group_ref['dn']
|
|
try:
|
|
super(GroupApi, self).add_member(user_dn, group_dn)
|
|
except exception.Conflict:
|
|
raise exception.Conflict(_(
|
|
'User %(user_id)s is already a member of group %(group_id)s') %
|
|
{'user_id': user_id, 'group_id': group_id})
|
|
|
|
def remove_user(self, user_dn, group_id, user_id):
|
|
group_ref = self.get(group_id)
|
|
group_dn = group_ref['dn']
|
|
try:
|
|
super(GroupApi, self).remove_member(user_dn, group_dn)
|
|
except ldap.NO_SUCH_ATTRIBUTE:
|
|
raise exception.UserNotFound(user_id=user_id)
|
|
|
|
def list_user_groups(self, user_dn):
|
|
"""Return a list of groups for which the user is a member."""
|
|
|
|
user_dn_esc = ldap.filter.escape_filter_chars(user_dn)
|
|
query = '(&(objectClass=%s)(%s=%s)%s)' % (self.object_class,
|
|
self.member_attribute,
|
|
user_dn_esc,
|
|
self.ldap_filter or '')
|
|
return self.get_all(query)
|
|
|
|
def list_user_groups_filtered(self, user_dn):
|
|
"""Return a filtered list of groups for which the user is a member."""
|
|
|
|
user_dn_esc = ldap.filter.escape_filter_chars(user_dn)
|
|
query = '(&(objectClass=%s)(%s=%s)%s)' % (self.object_class,
|
|
self.member_attribute,
|
|
user_dn_esc,
|
|
self.ldap_filter or '')
|
|
return self.get_all_filtered(query)
|
|
|
|
def list_group_users(self, group_id):
|
|
"""Return a list of user dns which are members of a group."""
|
|
group_ref = self.get(group_id)
|
|
group_dn = group_ref['dn']
|
|
|
|
try:
|
|
attrs = self._ldap_get_list(group_dn, ldap.SCOPE_BASE,
|
|
attrlist=(self.member_attribute,))
|
|
except ldap.NO_SUCH_OBJECT:
|
|
raise self.NotFound(group_id=group_id)
|
|
|
|
users = []
|
|
for dn, member in attrs:
|
|
user_dns = member.get(self.member_attribute, [])
|
|
for user_dn in user_dns:
|
|
if self._is_dumb_member(user_dn):
|
|
continue
|
|
users.append(user_dn)
|
|
return users
|
|
|
|
def get_filtered(self, group_id):
|
|
group = self.get(group_id)
|
|
return common_ldap.filter_entity(group)
|
|
|
|
def get_all_filtered(self, query=None):
|
|
return [common_ldap.filter_entity(group)
|
|
for group in self.get_all(query)]
|