220 lines
7.5 KiB
Python
220 lines
7.5 KiB
Python
# Copyright (C) 2015 Catalyst IT Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from collections import defaultdict
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from django.conf import settings
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from keystoneclient import exceptions as ks_exceptions
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from openstack_clients import get_keystoneclient
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def get_managable_roles(user_roles):
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"""
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Given a list of user role names, returns a list of names
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that the user is allowed to manage.
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"""
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manage_mapping = settings.ROLES_MAPPING
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# merge mapping lists to form a flat permitted roles list
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managable_role_names = [mrole for role_name in user_roles
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if role_name in manage_mapping
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for mrole in manage_mapping[role_name]]
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# a set has unique items
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managable_role_names = set(managable_role_names)
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return managable_role_names
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class IdentityManager(object):
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"""
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A wrapper object for the Keystone Client. Mainly setup as
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such for easier testing, but also so it can be replaced
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later with an LDAP + Keystone Client variant.
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"""
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def __init__(self):
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self.ks_client = get_keystoneclient()
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def find_user(self, name, domain):
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try:
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users = self.ks_client.users.list(name=name, domain=domain)
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if users:
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# NOTE(adriant) usernames are unique in a domain
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return users[0]
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else:
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return None
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except ks_exceptions.NotFound:
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return None
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def get_user(self, user_id):
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try:
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user = self.ks_client.users.get(user_id)
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except ks_exceptions.NotFound:
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user = None
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return user
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def list_users(self, project):
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"""
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Build a list of users for a given project using
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the v3 api.
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Rather than simply list users, we use the assignments
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endpoint so we can also fetch all the roles for those users
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in the given project. Saves further api calls later on.
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"""
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try:
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roles = self.ks_client.roles.list()
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role_dict = {role.id: role for role in roles}
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users = {}
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user_assignments = self.ks_client.role_assignments.list(
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project=project)
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for assignment in user_assignments:
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try:
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user = users.get(assignment.user['id'], None)
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if user:
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user.roles.append(role_dict[assignment.role['id']])
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else:
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user = self.ks_client.users.get(assignment.user['id'])
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user.roles = [role_dict[assignment.role['id']], ]
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users[user.id] = user
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except AttributeError:
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# Just means the assignment is a group, so ignore it.
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pass
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except ks_exceptions.NotFound:
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return []
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return users.values()
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def create_user(self, name, password, email, created_on, domain=None,
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default_project=None):
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user = self.ks_client.users.create(
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name=name, password=password, domain=domain, email=email,
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default_project=default_project, created_on=created_on)
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return user
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def enable_user(self, user):
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self.ks_client.users.update(user, enabled=True)
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def disable_user(self, user):
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self.ks_client.users.update(user, enabled=False)
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def update_user_password(self, user, password):
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self.ks_client.users.update(user, password=password)
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def update_user_email(self, user, email):
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self.ks_client.users.update(user, email=email)
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def update_user_name(self, user, name):
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self.ks_client.users.update(user, name=name)
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def find_role(self, name):
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try:
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role = self.ks_client.roles.find(name=name)
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except ks_exceptions.NotFound:
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role = None
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return role
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def get_roles(self, user, project):
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return self.ks_client.roles.list(user=user, project=project)
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def get_all_roles(self, user):
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"""
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Returns roles for a given user across all projects.
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Uses the new v3 assignments api method to quickly do this.
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"""
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roles = self.ks_client.roles.list()
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role_dict = {role.id: role for role in roles}
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user_assignments = self.ks_client.role_assignments.list(user=user)
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projects = defaultdict(list)
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for assignment in user_assignments:
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project = assignment.scope['project']['id']
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projects[project].append(role_dict[assignment.role['id']])
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return projects
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def add_user_role(self, user, role, project):
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try:
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self.ks_client.roles.grant(role, user=user, project=project)
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except ks_exceptions.Conflict:
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# Conflict is ok, it means the user already has this role.
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pass
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def remove_user_role(self, user, role, project):
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self.ks_client.roles.revoke(role, user=user, project=project)
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def find_project(self, project_name, domain):
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try:
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# Using a filtered list as find is more efficient than
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# using the client find
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projects = self.ks_client.projects.list(
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name=project_name, domain=domain)
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if projects:
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# NOTE(adriant) project names are unique in a domain so
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# it is safe to assume filtering on project name and domain
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# will only ever return one.
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return projects[0]
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else:
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return None
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except ks_exceptions.NotFound:
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return None
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def get_project(self, project_id):
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try:
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return self.ks_client.projects.get(project_id)
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except ks_exceptions.NotFound:
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return None
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def update_project(self, project, name=None, domain=None, description=None,
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enabled=None, **kwargs):
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try:
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return self.ks_client.projects.update(
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project=project, domain=domain, name=name,
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description=description, enabled=enabled,
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**kwargs)
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except ks_exceptions.NotFound:
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return None
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def create_project(self, project_name, created_on, parent=None,
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domain=None):
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project = self.ks_client.projects.create(
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project_name, domain, parent=parent, created_on=created_on)
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return project
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def get_domain(self, domain_id):
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try:
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return self.ks_client.domains.get(domain_id)
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except ks_exceptions.NotFound:
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return None
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def find_domain(self, domain_name):
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try:
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domains = self.ks_client.domains.list(name=domain_name)
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if domains:
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# NOTE(adriant) domain names are unique
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return domains[0]
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else:
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return None
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except ks_exceptions.NotFound:
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return None
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def get_region(self, region_id):
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try:
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region = self.ks_client.regions.get(region_id)
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except ks_exceptions.NotFound:
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region = None
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return region
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