Hi all...
I have been studying several examples trying to get my first
AppEngine app to work with the Google Calendar API. I am trying to
understand why my code isn't working GDataService vs CalendarService
I would like a clean elegant interface and the CalendarService seems
cleaner but the token upgrade fails.
What's the difference and how should I be doing this?
--------begin works-----------
feed=''http://www.google.com/calendar/feeds/default/owncalendars/
full'
fetcher = Fetcher()
client = fetcher.GetClient(self, feed)
calendars = client.Get(feed, converter=str)
class Fetcher():
def GetClient(self, handler, scope):
user = users.get_current_user()
if user:
client = gdata.service.GDataService()
gdata.alt.appengine.run_on_appengine(client)
for token in StoredToken.gql('WHERE user_email = :1', user.email
()):
if scope.find(token.target_url) > -1:
client.SetAuthSubToken(token.session_token)
return client
if handler.request.get('token'):
token = handler.request.get('token')
if handler.request.get('auth_sub_scopes'):
scope = handler.request.get('auth_sub_scopes')
client.SetAuthSubToken(token)
client.UpgradeToSessionToken()
new_token = StoredToken(user_email=user.email(),
session_token=client.GetAuthSubToken
(),
target_url=scope)
new_token.put()
return client
else:
handler.redirect(client.GenerateAuthSubURL
(handler.request.uri,
scope,
secure=False,
session=True).to_string
())
else:
handler.redirect(users.create_login_url(handler.request.uri))
--------end works-----------
The following breaks and fails with:
TokenUpgradeFailed: {'status': 403, 'body': '<HTML>\n<HEAD>
\n<TITLE>Attempt to upgrade a non-upgradeable token</TITLE>\n...
--------begin broke-----------
feed=''http://www.google.com/calendar/feeds/default/owncalendars/
full'
fetcher = Fetcher()
calClient = fetcher.GetCalendarClient(self, feed)
calendars = calClient.GetCalendarListFeed()
class Fetcher():
def GetCalendarClient(self, handler, scope):
user = users.get_current_user()
if user:
client = gdata.calendar.service.CalendarService()
gdata.alt.appengine.run_on_appengine(client)
for token in StoredToken.gql('WHERE user_email = :1', user.email
()):
if scope.find(token.target_url) > -1:
client.SetAuthSubToken(token.session_token)
return client
if handler.request.get('token'):
token = handler.request.get('token')
if handler.request.get('auth_sub_scopes'):
scope = handler.request.get('auth_sub_scopes')
client.auth_token = token
#client.SetAuthSubToken(token)
client.UpgradeToSessionToken()
new_token = StoredToken(user_email=user.email(),
session_token=client.GetAuthSubToken
(),
target_url=scope)
new_token.put()
return client
else:
handler.redirect(client.GenerateAuthSubURL
(handler.request.uri,
scope,
secure=False,
session=True).to_string
())
else:
handler.redirect(users.create_login_url(handler.request.uri)
--------end broke-----------
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