d7f56350a4
Before this change, external auth such as Keystone would fail if a user without an email address tried to login, even if the email feature was disabled.
97 lines
3.5 KiB
Python
97 lines
3.5 KiB
Python
import logging
|
|
|
|
from collections import namedtuple
|
|
|
|
from data import model
|
|
from util.validation import generate_valid_usernames
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
UserInformation = namedtuple('UserInformation', ['username', 'email', 'id'])
|
|
|
|
class FederatedUsers(object):
|
|
""" Base class for all federated users systems. """
|
|
|
|
def __init__(self, federated_service, requires_email):
|
|
self._federated_service = federated_service
|
|
self._requires_email = requires_email
|
|
|
|
@property
|
|
def federated_service(self):
|
|
return self._federated_service
|
|
|
|
def get_user(self, username_or_email):
|
|
""" Retrieves the user with the given username or email, returning a tuple containing
|
|
a UserInformation (if success) and the error message (on failure).
|
|
"""
|
|
raise NotImplementedError
|
|
|
|
def verify_credentials(self, username_or_email, password):
|
|
""" Verifies the given credentials against the backing federated service, returning
|
|
a tuple containing a UserInformation (on success) and the error message (on failure).
|
|
"""
|
|
raise NotImplementedError
|
|
|
|
def query_users(self, query, limit=20):
|
|
""" If implemented, get_user must be implemented as well. """
|
|
return (None, 'Not supported')
|
|
|
|
def _get_federated_user(self, username, email):
|
|
db_user = model.user.verify_federated_login(self._federated_service, username)
|
|
if not db_user:
|
|
# We must create the user in our db
|
|
valid_username = None
|
|
for valid_username in generate_valid_usernames(username):
|
|
if model.user.is_username_unique(valid_username):
|
|
break
|
|
|
|
if not valid_username:
|
|
logger.error('Unable to pick a username for user: %s', username)
|
|
return (None, 'Unable to pick a username. Please report this to your administrator.')
|
|
|
|
db_user = model.user.create_federated_user(valid_username, email, self._federated_service,
|
|
username,
|
|
set_password_notification=False,
|
|
email_required=self._requires_email)
|
|
else:
|
|
# Update the db attributes from the federated service.
|
|
if email:
|
|
db_user.email = email
|
|
db_user.save()
|
|
|
|
return (db_user, None)
|
|
|
|
def link_user(self, username_or_email):
|
|
(credentials, err_msg) = self.get_user(username_or_email)
|
|
if credentials is None:
|
|
return (None, err_msg)
|
|
|
|
return self._get_federated_user(credentials.username, credentials.email)
|
|
|
|
def verify_and_link_user(self, username_or_email, password):
|
|
""" Verifies the given credentials and, if valid, creates/links a database user to the
|
|
associated federated service.
|
|
"""
|
|
(credentials, err_msg) = self.verify_credentials(username_or_email, password)
|
|
if credentials is None:
|
|
return (None, err_msg)
|
|
|
|
return self._get_federated_user(credentials.username, credentials.email)
|
|
|
|
def confirm_existing_user(self, username, password):
|
|
""" Confirms that the given *database* username and service password are valid for the linked
|
|
service. This method is used when the federated service's username is not known.
|
|
"""
|
|
db_user = model.user.get_user(username)
|
|
if not db_user:
|
|
return (None, 'Invalid user')
|
|
|
|
federated_login = model.user.lookup_federated_login(db_user, self._federated_service)
|
|
if not federated_login:
|
|
return (None, 'Invalid user')
|
|
|
|
(credentials, err_msg) = self.verify_credentials(federated_login.service_ident, password)
|
|
if credentials is None:
|
|
return (None, err_msg)
|
|
|
|
return (db_user, None)
|