Google Oauth2 and Web2py and python

Still trying to get a simply app called Friends You Should Know working....

Google has updated its OAuth2 login details and the nice people at Web2Py community have also updated their libraries to make it work...

Took me a while to work out how to do it, however you need to put this in db.py to make web2py to login to Google OAuth2

google_auth.json is downloadable from Google Developer console when you set up the credentials - that you need to do before anything like this will work....

The bottom two lines then tell web2py to use Google Oauth2 instead of the normal login.

Hope this helps - you can thank the writer of the oAuth2 library....

 ### Google OAuth2 code   
 ###  
 from gluon.contrib.login_methods.oauth20_account import OAuthAccount  
   
 try:  
   import json  
 except ImportError:  
   from gluon.contrib import simplejson as json  
   
 import urllib2  
 class GoogleAccount(OAuthAccount):  
   "OAuth 2.0 for Google"  
   def __init__(self,g):  
     print 'Start reading database'  
     with open(os.path.join(request.folder, 'private/google_auth.json'), 'rb') as f:  
       gai = Storage(json.load(f)['web'])   
   
     # logger.debug("GAI is %s" % gai)  
     # logger.debug("Before gai.token_uri is %s" % gai.auth_uri)  
     # gai.auth_uri = settings.url_callback  
     # logger.debug("After gai.auth_uri is %s" % gai.auth_uri)  
     gai.client_id = settings.ggl_client_id  
     gai.client_secret = settings.ggl_client_secret  
     OAuthAccount.__init__(self, None, gai.client_id, gai.client_secret,  
                gai.auth_uri, gai.token_uri,  
                scope='https://www.googleapis.com/auth/plus.login https://mail.google.com https://www.googleapis.com/auth/userinfo.email',  
                approval_prompt='auto', state="auth_provider=google", include_granted_scopes="true")  
   logger.debug("Entered 1 Google Account code")   
     
   def get_user(self):  
     logger.debug("Self is %s" % self)  
     token = self.accessToken()  
     if not token:  
       return None  
   
     logger.debug("token is %s" % token)  
     uinfo_url = 'https://www.googleapis.com/plus/v1/people/me?access_token=%s' % urllib2.quote(token, safe='')  
   
     uinfo = None  
   
     try:  
       uinfo_stream = urllib2.urlopen(uinfo_url)  
     except:  
       session.token = None  
       return  
     data = uinfo_stream.read()  
     logger.debug("\ndata is %s" % data)  
     uinfo = json.loads(data)  
     logger.debug("\nThe User Info returned is %s" % uinfo)  
   
     username = uinfo['id']  
     if 'emails' in uinfo:  
      for e in uinfo['emails']:  
       if e['type'] == "account":  
         emailaddr = e['value']  
       
     logger.debug("\nEmailaddr is %s" % emailaddr)  
     image_url = None  
     gender = None  
     lang = None  
     age_range = None  
   
     if 'image' in uinfo:   
      image_url = uinfo['image']['url']  
     if 'gender' in uinfo:   
      gender = uinfo['gender']  
     if 'language' in uinfo:   
      lang = uinfo['language']  
     if 'ageRange' in uinfo:   
      age_range = uinfo['ageRange']['min']  
   
     return dict(first_name = uinfo['name']['givenName'],  
           last_name = uinfo['name']['familyName'],  
           username = username,  
           email = emailaddr,  
           image_url = image_url,  
           gender = gender,  
           lang = lang,  
           age_range = age_range)  
   
 auth.settings.actions_disabled=['register','change_password','request_reset_password','profile']  
 auth.settings.login_form=GoogleAccount(globals())