77 lines
2.5 KiB
Python
77 lines
2.5 KiB
Python
# Copyright 2022 Google LLC
|
|
#
|
|
# 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.
|
|
|
|
"""Google API key support.
|
|
This module provides authentication using the `API key`_.
|
|
.. _API key:
|
|
https://cloud.google.com/docs/authentication/api-keys/
|
|
"""
|
|
|
|
from google.auth import _helpers
|
|
from google.auth import credentials
|
|
from google.auth import exceptions
|
|
|
|
|
|
class Credentials(credentials.Credentials):
|
|
"""API key credentials.
|
|
These credentials use API key to provide authorization to applications.
|
|
"""
|
|
|
|
def __init__(self, token):
|
|
"""
|
|
Args:
|
|
token (str): API key string
|
|
Raises:
|
|
ValueError: If the provided API key is not a non-empty string.
|
|
"""
|
|
super(Credentials, self).__init__()
|
|
if not token:
|
|
raise exceptions.InvalidValue("Token must be a non-empty API key string")
|
|
self.token = token
|
|
|
|
@property
|
|
def expired(self):
|
|
return False
|
|
|
|
@property
|
|
def valid(self):
|
|
return True
|
|
|
|
@_helpers.copy_docstring(credentials.Credentials)
|
|
def refresh(self, request):
|
|
return
|
|
|
|
def apply(self, headers, token=None):
|
|
"""Apply the API key token to the x-goog-api-key header.
|
|
Args:
|
|
headers (Mapping): The HTTP request headers.
|
|
token (Optional[str]): If specified, overrides the current access
|
|
token.
|
|
"""
|
|
headers["x-goog-api-key"] = token or self.token
|
|
|
|
def before_request(self, request, method, url, headers):
|
|
"""Performs credential-specific before request logic.
|
|
Refreshes the credentials if necessary, then calls :meth:`apply` to
|
|
apply the token to the x-goog-api-key header.
|
|
Args:
|
|
request (google.auth.transport.Request): The object used to make
|
|
HTTP requests.
|
|
method (str): The request's HTTP method or the RPC method being
|
|
invoked.
|
|
url (str): The request's URI or the RPC service's URI.
|
|
headers (Mapping): The request's headers.
|
|
"""
|
|
self.apply(headers)
|