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receive.py
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receive.py
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# 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.
"""
Demonstrates how to receive authenticated service-to-service requests, eg
for Cloud Run or Cloud Functions
"""
# [START cloudrun_service_to_service_receive]
from google.auth.transport import requests
from google.oauth2 import id_token
def receive_authorized_get_request(request):
"""Parse the authorization header and decode the information
being sent by the Bearer token.
Args:
request: Flask request object
Returns:
The email from the request's Authorization header.
"""
auth_header = request.headers.get("Authorization")
if auth_header:
# split the auth type and value from the header.
auth_type, creds = auth_header.split(" ", 1)
if auth_type.lower() == "bearer":
claims = id_token.verify_token(creds, requests.Request())
return f"Hello, {claims['email']}!\n"
else:
return f"Unhandled header format ({auth_type}).\n"
return "Hello, anonymous user.\n"
# [END cloudrun_service_to_service_receive]