python之AuthSub 问题

我一直在梳理谷歌的身份验证文档，但在使用 Auth Sub 时遇到了问题。

以下代码是Google AppEngine应用程序开头的main.py。

#!/usr/bin/env python 
 
from google.appengine.ext import webapp 
from google.appengine.ext.webapp import util 
from google.appengine.ext.webapp import template 
from gdata.calendar import service 
import gdata 
from gdata.alt.appengine import run_on_appengine 
 
from google.appengine.api import users 
from google.appengine.ext import db 
 
from gdata.auth import OAuthSignatureMethod, OAuthToken, OAuthInputParams 
import urllib 
import simplejson 
 
# Incomplete bibliography 
# http://www.youtube.com/watch?v=bfgO-LXGpTM 
# http://code.google.com/appengine/articles/python/retrieving_gdata_feeds.html 
 
test = None 
 
class BasePage(webapp.RequestHandler): 
    title = "Joshua's Construction Zone" 
    def write_page_header(self): 
        self.response.out.write(template.render('templates/header.html', {'title': self.title})) 
 
    def write_page_footer(self): 
        self.response.out.write(template.render('templates/footer.html', {})) 
 
class MainHandler(BasePage): 
    client = None 
    def get(self): 
 
        self.write_page_header() 
 
        client = gdata.calendar.service.CalendarService() 
        run_on_appengine(client) 
 
        next_url = 'http://localhost:8085/handle_request_token' 
        scope = 'http://www.google.com/calendar/feeds/' 
 
        self.response.out.write('<a href=\"' + str(client.GenerateAuthSubURL(next_url, (scope,) , secure=False, session=True)) + '\">' + "Aquire Security Token" + '</a>') 
 
        self.write_page_footer() 
 
class RPC(webapp.RequestHandler): 
    def getUserCalendars(calendar_service): 
        calendars = calendar_service.getUserCalendars() 
        json_cals = [] 
        for calendar in calendars: 
            json_cals.insert(calendar) 
        json_cals = simplejson.json_encode(json_cals) 
        return json_cals 
 
    def get(self): 
        self.response.out.write('test') 
 
class HandleRequestToken(BasePage): 
    def get(self): 
        self.write_page_header() 
 
        token = self.request.get('token') 
        client = gdata.calendar.service.CalendarService(); 
        run_on_appengine(client) 
 
        auth_sub_token = gdata.auth.extract_auth_sub_token_from_url(self.request.url, 'http://www.google.com/calendar/feeds/') 
 
        session_token = client.upgrade_to_session_token(auth_sub_token) 
        if not session_token: 
            self.response.out.write('no session token') 
            return 
 
        client.token_store.add_token(session_token) 
        response = client.Get('http://www.google.com/calendar/feeds/joshua.marshall.moore@gmail.com/private/full/', converter=str) 
        self.response.out.write(response) 
 
        if not session_token: 
            self.response.out.write('no session token') 
            return 
        else: 
            self.response.out.write('session token achieved') 
 
        client.token_store.add_token(session_token) 
        user = users.get_current_user() 
        if not user: 
            self.response.out.write('no user') 
            return 
 
        client.Get('http://www.google.com/calendar/feeds/' + user.email() + '/private/full', converter=str) 
 
        self.write_page_footer() 
 
def main(): 
    application = webapp.WSGIApplication([('/', MainHandler), ('/rpc', RPC), ('/handle_request_token', HandleRequestToken)], debug=True) 
    util.run_wsgi_app(application) 
 
 
if __name__ == '__main__': 
    main() 

我已经成功收到 session token ，但现在我迷路了。

我收到一条错误消息，说:

Traceback (most recent call last): 
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\webapp\__init__.py", line 515, in __call__ 
    handler.get(*groups) 
  File "C:\Users\Joshua\appengineapps\jmm-timeline\main.py", line 75, in get 
    response = client.Get('http://www.google.com/calendar/feeds/joshua.marshall.moore@gmail.com/private/full/', converter=str) 
  File "C:\Users\Joshua\appengineapps\website\gdata\service.py", line 1108, in Get 
    'reason': server_response.reason, 'body': result_body} 
RequestError: {'status': 401, 'body': '<HTML>\n<HEAD>\n<TITLE>Authorization required</TITLE>\n</HEAD>\n<BODY BGCOLOR="#FFFFFF" TEXT="#000000">\n<H1>Authorization required</H1>\n<H2>Error 401</H2>\n</BODY>\n</HTML>\n', 'reason': ''} 

我以为我得到了一个请求 token ，将其升级为 session token ，并将其存储到 client.token_store。我从 http://code.google.com/appengine/articles/python/retrieving_gdata_feeds.html 收集到的信息，这就是我需要做的。

请您参考如下方法:

我最近更新了这篇文章，以提供有关如何在 App Engine 上使用 GData 和 OAuth 的更好的文档: http://code.google.com/appengine/articles/python/retrieving_gdata_feeds.html

您应该能够在那里使用示例代码，并将 DocClient 替换为 CalendarService。