我已经部署了一个简单的GCP Cloud Function,该函数返回“ Hello World!”。 我需要此功能得到授权。我未标记“允许未经身份验证的调用”复选框,因此只有经过身份验证的调用才能调用此代码。 我还创建了服务帐户并担任下一个角色: -云功能调用者 -云功能服务代理
我的代码:
from google.oauth2 import service_account
from google.auth.transport.urllib3 import AuthorizedHttp
if __name__ == '__main__':
credentials = service_account.Credentials.from_service_account_file('service-account.json',
scopes=['https://www.googleapis.com/auth/cloud-platform'],
subject='service-acc@<project_id>.iam.gserviceaccount.com')
authed_session = AuthorizedHttp(credentials)
response = authed_session.urlopen('POST', 'https://us-central1-<project_id>.cloudfunctions.net/main')
print(response.data)
我得到了答复:
b'\n<html><head>\n<meta http-equiv="content-type" content="text/html;charset=utf-8">\n<title>401 Unauthorized</title>\n</head>\n<body text=#000000 bgcolor=#ffffff>\n<h1>Error: Unauthorized</h1>\n<h2>Your client does not have permission to the requested URL <code>/main</code>.</h2>\n<h2></h2>\n</body></html>\n'
如何获得授权?
答案 0 :(得分:2)
您的示例代码正在生成访问令牌。以下是一个生成身份令牌并使用该令牌调用Cloud Functions端点的真实示例。该功能需要具有用于授权帐户的Cloud Function Invoker角色。
import json
import base64
import requests
import google.auth.transport.requests
from google.oauth2.service_account import IDTokenCredentials
# The service account JSON key file to use to create the Identity Token
sa_filename = 'service-account.json'
# Endpoint to call
endpoint = 'https://us-east1-replace_with_project_id.cloudfunctions.net/main'
# The audience that this ID token is intended for (example Google Cloud Functions service URL)
aud = 'https://us-east1-replace_with_project_id.cloudfunctions.net/main'
def invoke_endpoint(url, id_token):
headers = {'Authorization': 'Bearer ' + id_token}
r = requests.get(url, headers=headers)
if r.status_code != 200:
print('Calling endpoint failed')
print('HTTP Status Code:', r.status_code)
print(r.content)
return None
return r.content.decode('utf-8')
if __name__ == '__main__':
credentials = IDTokenCredentials.from_service_account_file(
sa_filename,
target_audience=aud)
request = google.auth.transport.requests.Request()
credentials.refresh(request)
# This is debug code to show how to decode Identity Token
# print('Decoded Identity Token:')
# print_jwt(credentials.token.encode())
response = invoke_endpoint(endpoint, credentials.token)
if response is not None:
print(response)
答案 1 :(得分:0)
该错误是由于未验证呼叫而引起的。
由于现在从您的本地主机this进行的呼叫应该对您有用。
curl https://REGION-PROJECT_ID.cloudfunctions.net/FUNCTION_NAME \
-H "Authorization: bearer $(gcloud auth print-identity-token)"
这将使用您在本地主机上在gcloud上处于活动状态的帐户进行呼叫。
进行呼叫的帐户必须具有 Cloud Functions Invoker
角色将来只需确保服务正在调用此函数就具有上述角色。