在GAE上实现Google与openId Connect的连接

Question

我正在尝试编写一个基本的GAE应用程序来测试OpenId Connect。它在日志中发生错误失败：people（）。get（）中的“权限不足”。看起来这个程序要求OpenId证书，而不是OAuth（在登录页面的url中有一个重定向到https://accounts.google.com/o/openid2/auth，但这是隐含的，如何明确要求OAuth？很奇怪，因为decorator.has_credentials（）返回True这些OpenID凭证......

import logging 
import webapp2 
from apiclient.discovery import build 
from oauth2client.appengine import OAuth2Decorator 
from google.appengine.api import users 

decorator = OAuth2Decorator(
    client_id='123456789999.....googleusercontent.com', 
    client_secret='ABCDEF.........', 
    scope=['https://www.googleapis.com/auth/plus.login']) 


service = build('plus', 'v1') 

class MainHandler(webapp2.RequestHandler): 

    @decorator.oauth_aware 
    def get(self): 
    if decorator.has_credentials(): 
     response =service.people().get(userId="me").execute(http=decorator.http()) 
     # Write the profile data 
     self.response.write(unicode(response)) 
    else: 
     url = decorator.authorize_url() 
     # Write a page explaining why authorization is needed, 
     # and provide the user with a link to the url to proceed. 
     # When the user authorizes, they get redirected back to this path, 
     # and has_credentials() returns True. 
     self.response.write('You must login : <a href="'+url+'">Go</a>') 


app = webapp2.WSGIApplication([ 
          ('/', MainHandler), 
          (decorator.callback_path, decorator.callback_handler())], 
          debug=True) 

Answer 1

你必须激活Google+ API在谷歌控制台http://code.google.com/apis/console

的API &认证/ API的/ Google+的API

，并单击按钮与文字：“启用API “