gservice.py 文件源码

def get_user_credentials_object(self):
        if not self.credentials:
            cr_json = self.get_google_credentials()
            if cr_json:
                # Note JSON is stored as escaped string, not dict
                cr = client.Credentials.new_from_json(cr_json)
                expires_in = cr.token_expiry - datetime.utcnow()
                logging.debug("expires_in: %s" % expires_in)
                if expires_in < timedelta(minutes=15):
                    try:
                        cr.refresh(httplib2.Http())
                    except client.HttpAccessTokenRefreshError, e:
                        logging.error("HttpAccessTokenRefreshError: %s" % e)
                        cr = None
                    else:
                        self.set_google_credentials(cr)
                self.credentials = cr
                return cr