谷歌應用程序引擎和組配置

Question

我真的需要一些幫助，我已經在這個近2周。

我想要做的是在GAE（Google App Engine）內部使用Google的配置API，使用oAuth2。我知道有一些使用oAuth1來實現這個功能的例子。但我的理解是，oAuth1現在已被棄用，我們必須使用oAuth2，如果我錯了，請糾正我。

我已經沖刷互聯網，我能找到工作從唯一的例子是這樣的：

http://gdata-samples.googlecode.com/svn-history/r232/trunk/gdata/youtube-oauth2-app-engine/main.py

其他的例子我發現使用OAuth 1，或者他們沒有設計使用與App Engine一起使用。

我從上面的例子中所採取的代碼，並試圖修改它與網上論壇配置API的工作，這裏是我的代碼：

import os 

from gdata.alt import appengine 
from gdata.service import RequestError 
from google.appengine.api import users 
from google.appengine.ext import webapp 
from google.appengine.ext.webapp import template 
from google.appengine.ext.webapp import util 
from oauth2client.appengine import OAuth2Decorator 
import gdata.auth 
import gdata.apps.groups.client 
import gdata.client 
import httplib2 


API_VERSION = '2.0' 
BASE_URL = '/a/feeds/group/%s' % API_VERSION 
# HACK to use the Python GData client library with OAuth 2 tokens. 
# We use the methods that deal with AuthSub tokens. 
gdata.auth.AUTHSUB_AUTH_LABEL = "OAuth " 

class MainHandler(webapp.RequestHandler): 
    # The client_id and client_secret are copied from the API Access tab on 
    # the Google APIs Console <http://code.google.com/apis/console> 
    oauth2_decorator = OAuth2Decorator(
    client_id="myClientID.apps.googleusercontent.com", 
    client_secret="myClientSecret", 
    scope="https://apps-apis.google.com/a/feeds/groups/") 

    # This decorator ensures that whenever this page is served, we have a valid 
    # OAuth 2 token for the user. 
    @oauth2_decorator.oauth_required 
    def handle_exception(self, exception, debug_mode): 
    """Handle OAuth 2 token expirations by forcing a refresh. 

    For newer Google APIs, refreshes are handled automatically by the client 
     library, but for GData APIs, we need to explicitly force this behavior. 
    """ 
    if (isinstance(exception, RequestError) and 
     exception.args[0]["status"] == 401): 
     body = exception.args[0]["body"] 
     if "Token invalid - Invalid AuthSub token." in body: 
     self.oauth2_decorator.credentials._refresh(httplib2.Http().request) 
     self.redirect(self.request.url) 
     return 

    webapp.RequestHandler.handle_exception(self, exception, debug_mode) 

    # This decorator ensures that whenever this page is served, we have a valid 
    # OAuth 2 token for the user. 
    @oauth2_decorator.oauth_required 
    def get(self): 
     self.domain='testdomain123456.mygbiz.com' 
     self.baseuri = '%s/%s' % (BASE_URL, 'testdomain123456.mygbiz.com') 
     self.token = self.oauth2_decorator.credentials.access_token 
     self.client = gdata.apps.groups.client.GroupsProvisioningClient(
     domain=self.domain, auth_token=self.token) 

     self.client.SetAuthSubToken(self.token) 

     params = dict(
     logout_url=users.create_logout_url(self.request.uri), 
     memberFeed = self.client.RetrieveAllMembers('test') 
    ) 
     path = os.path.join(os.path.dirname(__file__), 'templates', 'index.html') 
     self.response.out.write(template.render(path, params)) 


def main(): 
    application = webapp.WSGIApplication([('/', MainHandler)], debug=True) 
    util.run_wsgi_app(application) 


if __name__ == '__main__': 
    main() 

我部署這http://appplat4.appspot.com，並且你可以看到它返回一個500服務器錯誤。我有與app.yaml相同的目錄中的所有必要的庫，我有我的谷歌API設置爲域。

截圖：

我一直在努力盡我所能來配置組從內部GAE沒有成功。請幫助，如果可以，任何輸入量讚賞。

Answer 1

這並沒有解決應用程序引擎，但它是使用GDATA客戶端使用OAuth 2命令行例子：

import sys 
import os 
import webbrowser 
import gdata.gauth 
import oauth2client.client 
import oauth2client.file 
import oauth2client.tools 
import gdata.gauth 
import gdata.client 
import gdata.apps.groups.client 

APICONSOLE = 'https://code.google.com/apis/console' 
SCOPES = 'https://apps-apis.google.com/a/feeds/groups/' 
OAUTH2FILENAME = 'credentials.oauth2' 
OAUTH2JSONFILE = 'client_secrets.json' 
OAUTH2USERAGENT = 'GROUPS' 
MISSING_OAUTHJSONFILE_MESSAGE = """ 
You must create or download a client secrets json file (%s) 
from the Google APIs console <https://code.google.com/apis/console>. 
Attemping to open page with your browser ... 
""" % os.path.join(os.path.dirname(__file__), OAUTH2JSONFILE) 

# populate with approprate values 
DOMAIN = 'your-domain' 
GROUP_ID = 'agroup@your.domain' 

if not os.path.isfile(OAUTH2JSONFILE): 
    message = MISSING_OAUTHJSONFILE_MESSAGE 
    print message 
    try: 
    webbrowser.open(str(APICONSOLE)) 
    except Exception, e: 
    print "Error opening web page" 
    sys.exit(1) 
    message = 'When %s is created/downloaded press Enter to continue ... ' %(OAUTH2JSONFILE) 
    raw_input(message) 
oauth2_flow = oauth2client.client.flow_from_clientsecrets(OAUTH2JSONFILE, 
    scope=SCOPES,message=MISSING_OAUTHJSONFILE_MESSAGE) 
storage = oauth2client.file.Storage(OAUTH2FILENAME) 
oauth2_credentials = storage.get() 
if oauth2_credentials is None or oauth2_credentials.invalid: 
    oauth2_credentials = oauth2client.tools.run(oauth2_flow, storage) 
oauth2_token = gdata.gauth.OAuth2Token(
    client_id=oauth2_credentials.client_id, 
    client_secret=oauth2_credentials.client_secret, 
    scope=SCOPES, 
    user_agent=OAUTH2USERAGENT, 
    access_token=oauth2_credentials.access_token, 
    refresh_token=oauth2_credentials.refresh_token) 
# authorize client 
groups_client = oauth2_token.authorize(
    gdata.apps.groups.client.GroupsProvisioningClient(domain=DOMAIN)) 
print 'Authorized domain %s . . .\n' %(DOMAIN) 
group_entry = groups_client.RetrieveGroup(group_id=GROUP_ID) 
print group_entry.group_id 
print group_entry.group_name 
print group_entry.description 
print group_entry.email_permission 

sys.exit(0)