| # |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you 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. |
| """Authentication backend.""" |
| from __future__ import annotations |
| |
| import logging |
| from importlib import import_module |
| |
| from airflow.configuration import conf |
| from airflow.exceptions import AirflowConfigException, AirflowException |
| |
| log = logging.getLogger(__name__) |
| |
| |
| def load_auth(): |
| """Load authentication backends.""" |
| auth_backends = "airflow.api.auth.backend.default" |
| try: |
| auth_backends = conf.get("api", "auth_backends") |
| except AirflowConfigException: |
| pass |
| |
| backends = [] |
| for backend in auth_backends.split(","): |
| try: |
| auth = import_module(backend.strip()) |
| log.info("Loaded API auth backend: %s", backend) |
| backends.append(auth) |
| except ImportError as err: |
| log.critical("Cannot import %s for API authentication due to: %s", backend, err) |
| raise AirflowException(err) |
| return backends |