谷歌应用程序引擎和组配置

Question

我真的需要一些帮助，我已经在这个近2周。

我想要做的是在GAE（Google App Engine）内部使用Google的配置API，使用oAuth2。我知道有一些使用oAuth1来实现这个功能的例子。但我的理解是，oAuth1现在已被弃用，我们必须使用oAuth2，如果我错了，请纠正我。

我已经冲刷互联网，我能找到工作从唯一的例子是这样的：

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

其他的例子我发现使用OAuth 1，或者他们没有设计使用与App Engine一起使用。

我从上面的例子中所采取的代码，并试图修改它与网上论坛配置API的工作，这里是我的代码：

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() 

我部署这http://appplat4.appspot.com，并且你可以看到它返回一个500服务器错误。我有与app.yaml相同的目录中的所有必要的库，我有我的谷歌API设置为域。

截图：

我一直在努力尽我所能来配置组从内部GAE没有成功。请帮助，如果可以，任何输入量赞赏。

Answer 1

这并没有解决应用程序引擎，但它是使用GDATA客户端使用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)