Google Login Auhtentication Sample Python Code (Handling Proxy Server)

Google Login Auhtentication

clientid = settings.SOCIAL_AUTH_CREDENTIALS['google']['client_id']

client_secret = settings.SOCIAL_AUTH_CREDENTIALS['google']['client_secret']

redirect_uri = settings.SOCIAL_AUTH_CREDENTIALS['google']['redirect_uri']

scope = ['https://www.googleapis.com/auth/userinfo.profile', #profile

         'https://www.googleapis.com/auth/userinfo.email', #email address

         #'https://www.google.com/m8/feeds/', #contacts

         ]

def login(request):

    url = 'https://accounts.google.com/o/oauth2/auth?client_id=%s&redirect_uri=%s&response_type=code&scope=%s&access_type=offline' % (clientid,redirect_uri,' '.join(scope))

    return HttpResponseRedirect(url)

def callback(request):

    code = request.GET.get('code','')

    if len(code) > 0:

        url = 'https://accounts.google.com/o/oauth2/token'

        values = {'code' : code,

                  'client_id' : clientid,

                  'client_secret' : client_secret,

                  'redirect_uri': redirect_uri,

                  'grant_type': 'authorization_code'}

        

        # proxy handling. Not required on main server

        

        useproxy = getattr(settings, "PROXY_ENABLED", False)

        if useproxy:

            passmgr = urllib2.HTTPPasswordMgrWithDefaultRealm()

            passmgr.add_password(None, settings.PROXY_SERVER, settings.PROXY_USER, settings.PROXY_PASSWORD)

            authinfo = urllib2.ProxyBasicAuthHandler(passmgr)

            proxy_support = urllib2.ProxyHandler({"http" : settings.PROXY_SERVER})

            opener = urllib2.build_opener(proxy_support, authinfo)

            urllib2.install_opener(opener)

        

        data = urllib.urlencode(values)

        req = urllib2.Request(url, data)

        response = urllib2.urlopen(req)

        the_page = response.read()

        

        access_info = json.loads(the_page)

        google_access_token = access_info['access_token']

        google_id_token = access_info['id_token']

        google_token_type = access_info['token_type']

        

        url = 'https://www.googleapis.com/oauth2/v1/userinfo?access_token=%s' % google_access_token

        

        req = urllib2.Request(url)

        response = urllib2.urlopen(req)

        the_page = response.read()

        

        user_info = json.loads(the_page)

        print user_info

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written by, Thanga Vignesh Raja T