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auth_backends.py
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auth_backends.py
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from django.contrib.auth.models import User
from django.core.urlresolvers import reverse
from django.conf import settings
import facebook
import urllib
from socialauth.lib import oauthtwitter2 as oauthtwitter
from socialauth.models import OpenidProfile as UserAssociation, TwitterUserProfile, FacebookUserProfile, LinkedInUserProfile, AuthMeta
from socialauth.lib.linkedin import *
import random
TWITTER_CONSUMER_KEY = getattr(settings, 'TWITTER_CONSUMER_KEY', '')
TWITTER_CONSUMER_SECRET = getattr(settings, 'TWITTER_CONSUMER_SECRET', '')
FACEBOOK_APP_ID = getattr(settings, 'FACEBOOK_APP_ID', '')
FACEBOOK_API_KEY = getattr(settings, 'FACEBOOK_API_KEY', '')
FACEBOOK_SECRET_KEY = getattr(settings, 'FACEBOOK_SECRET_KEY', '')
# Linkedin
LINKEDIN_CONSUMER_KEY = getattr(settings, 'LINKEDIN_CONSUMER_KEY', '')
LINKEDIN_CONSUMER_SECRET = getattr(settings, 'LINKEDIN_CONSUMER_SECRET', '')
# OpenId setting map
OPENID_AX_PROVIDER_MAP = getattr(settings, 'OPENID_AX_PROVIDER_MAP', {})
class OpenIdBackend:
def authenticate(self, openid_key, request, provider, user=None):
try:
assoc = UserAssociation.objects.get(openid_key = openid_key)
return assoc.user
except UserAssociation.DoesNotExist:
#fetch if openid provider provides any simple registration fields
nickname = None
email = None
firstname = None
lastname = None
if request.openid and request.openid.sreg:
email = request.openid.sreg.get('email')
nickname = request.openid.sreg.get('nickname')
firstname, lastname = request.openid.sreg.get('fullname', '').split(' ', 1)
elif request.openid and request.openid.ax:
email = request.openid.ax.getSingle('http://axschema.org/contact/email')
if 'google' in provider:
ax_schema = OPENID_AX_PROVIDER_MAP['Google']
firstname = request.openid.ax.getSingle(ax_schema['firstname'])
lastname = request.openid.ax.getSingle(ax_schema['lastname'])
nickname = email.split('@')[0]
else:
ax_schema = OPENID_AX_PROVIDER_MAP['Default']
try:
nickname = request.openid.ax.getSingle(ax_schema['nickname']) #should be replaced by correct schema
firstname, lastname = request.openid.ax.getSingle(ax_schema['fullname']).split(' ', 1)
except:
pass
if nickname is None :
nickname = ''.join([random.choice('abcdefghijklmnopqrstuvwxyz') for i in xrange(10)])
name_count = User.objects.filter(username__startswith = nickname).count()
if name_count:
username = '{0}{1}'.format(nickname, name_count + 1)
else:
username = '{0}'.format(nickname)
if email is None :
valid_username = False
email = "{0}@socialauth".format(username)
else:
valid_username = True
if not user:
user = User.objects.create_user(username, email)
user.first_name = firstname
user.last_name = lastname
user.save()
#create openid association
assoc = UserAssociation()
assoc.openid_key = openid_key
assoc.user = user
if email:
assoc.email = email
if nickname:
assoc.nickname = nickname
if valid_username:
assoc.is_username_valid = True
assoc.save()
#Create AuthMeta
# auth_meta = AuthMeta(user=user, provider=provider, provider_model='OpenidProfile', provider_id=assoc.pk)
auth_meta = AuthMeta(user=user, provider=provider)
auth_meta.save()
return user
def GooglesAX(self,openid_response):
email = openid_response.ax.getSingle('http://axschema.org/contact/email')
firstname = openid_response.ax.getSingle('http://axschema.org/namePerson/first')
lastname = openid_response.ax.getSingle('http://axschema.org/namePerson/last')
# country = openid_response.ax.getSingle('http://axschema.org/contact/country/home')
# language = openid_response.ax.getSingle('http://axschema.org/pref/language')
return locals()
def get_user(self, user_id):
try:
user = User.objects.get(pk = user_id)
return user
except User.DoesNotExist:
return None
class LinkedInBackend:
"""LinkedInBackend for authentication"""
def authenticate(self, linkedin_access_token, user=None):
linkedin = LinkedIn(LINKEDIN_CONSUMER_KEY, LINKEDIN_CONSUMER_SECRET)
# get their profile
profile = ProfileApi(linkedin).getMyProfile(access_token = linkedin_access_token)
try:
user_profile = LinkedInUserProfile.objects.get(linkedin_uid = profile.id)
user = user_profile.user
return user
except LinkedInUserProfile.DoesNotExist:
# Create a new user
username = 'LI:%s' % profile.id
if not user:
user = User(username = username)
user.first_name, user.last_name = profile.firstname, profile.lastname
user.email = '{0}@socialauth'.format(username)
user.save()
userprofile = LinkedInUserProfile(user=user, linkedin_uid=profile.id)
userprofile.save()
auth_meta = AuthMeta(user=user, provider='LinkedIn').save()
return user
def get_user(self, user_id):
try:
return User.objects.get(pk=user_id)
except:
return None
class TwitterBackend:
"""TwitterBackend for authentication"""
def authenticate(self, twitter_access_token, user=None):
'''authenticates the token by requesting user information from twitter'''
# twitter = oauthtwitter.OAuthApi(TWITTER_CONSUMER_KEY, TWITTER_CONSUMER_SECRET, twitter_access_token)
twitter = oauthtwitter.TwitterOAuthClient(settings.TWITTER_CONSUMER_KEY, settings.TWITTER_CONSUMER_SECRET)
try:
userinfo = twitter.get_user_info(twitter_access_token)
except:
# If we cannot get the user information, user cannot be authenticated
raise
screen_name = userinfo.screen_name
twitter_id = userinfo.id
try:
user_profile = TwitterUserProfile.objects.get(screen_name=screen_name)
# Update Twitter Profile
user_profile.url = userinfo.url
user_profile.location = userinfo.location
user_profile.description = userinfo.description
user_profile.profile_image_url = userinfo.profile_image_url
user_profile.save()
user = user_profile.user
return user
except TwitterUserProfile.DoesNotExist:
# Create new user
if not user:
same_name_count = User.objects.filter(username__startswith=screen_name).count()
if same_name_count:
username = '%s%s' % (screen_name, same_name_count + 1)
else:
username = screen_name
user = User(username=username)
name_data = userinfo.name.split()
try:
first_name, last_name = name_data[0], ' '.join(name_data[1:])
except:
first_name, last_name = screen_name, ''
user.first_name, user.last_name = first_name, last_name
#user.email = screen_name + "@socialauth"
#user.email = '%s@example.twitter.com'%(userinfo.screen_name)
user.save()
user_profile = TwitterUserProfile(user=user, screen_name=screen_name)
user_profile.access_token = twitter_access_token
user_profile.url = userinfo.url
user_profile.location = userinfo.location
user_profile.description = userinfo.description
user_profile.profile_image_url = userinfo.profile_image_url
user_profile.save()
auth_meta = AuthMeta(user=user, provider='Twitter').save()
return user
def get_user(self, user_id):
try:
return User.objects.get(pk=user_id)
except:
return None
class FacebookBackend:
def authenticate(self, request, user=None):
cookie = facebook.get_user_from_cookie(request.COOKIES, FACEBOOK_APP_ID, FACEBOOK_SECRET_KEY)
if cookie:
uid = cookie['uid']
access_token = cookie['access_token']
else:
# if cookie does not exist
# assume logging in normal way
params = {}
params["client_id"] = FACEBOOK_APP_ID
params["client_secret"] = FACEBOOK_SECRET_KEY
params["redirect_uri"] = reverse("socialauth_facebook_login_done")[1:]
params["code"] = request.GET.get('code', '')
url = "https://graph.facebook.com/oauth/access_token?"+urllib.urlencode(params)
from cgi import parse_qs
userdata = urllib.urlopen(url).read()
res_parse_qs = parse_qs(userdata)
# Could be a bot query
if not res_parse_qs.has_key('access_token'):
return None
parse_data = res_parse_qs['access_token']
uid = parse_data['uid'][-1]
access_token = parse_data['access_token'][-1]
try:
fb_user = FacebookUserProfile.objects.get(facebook_uid=uid)
return fb_user.user
except FacebookUserProfile.DoesNotExist:
# create new FacebookUserProfile
graph = facebook.GraphAPI(access_token)
fb_data = graph.get_object("me")
if not fb_data:
return None
username = uid
if not user:
user = User.objects.create(username=username)
user.first_name = fb_data['first_name']
user.last_name = fb_data['last_name']
user.save()
fb_profile = FacebookUserProfile(facebook_uid=uid, user=user)
fb_profile.save()
auth_meta = AuthMeta(user=user, provider='Facebook').save()
return user
def get_user(self, user_id):
try:
return User.objects.get(pk=user_id)
except:
return None