API-Manager/apimanager/oauth/views.py
Sebastian Henschel ea84b92091 Initial commit
2016-11-09 14:54:47 +01:00

82 lines
3.0 KiB
Python

# -*- coding: utf-8 -*-
import hashlib
from django.conf import settings
from django.contrib import messages
from django.contrib.auth import login, logout
from django.contrib.auth.models import User
from django.urls import reverse
from django.views.generic import RedirectView
from requests_oauthlib import OAuth1Session
from base.utils import api_get
class InitiateView(RedirectView):
def get_callback_uri(self, request):
base_url = '{}://{}'.format(
request.scheme, request.environ['HTTP_HOST'])
uri = base_url + reverse('oauth-authorize')
if 'next' in request.GET:
uri = '{}?next={}'.format(uri, request.GET['next'])
return uri
def get_redirect_url(self, *args, **kwargs):
callback_uri = self.get_callback_uri(self.request)
api = OAuth1Session(
settings.OAUTH_CLIENT_KEY,
client_secret=settings.OAUTH_CLIENT_SECRET,
callback_uri=callback_uri,
)
try:
url = settings.OAUTH_API + settings.OAUTH_TOKEN_PATH
fetch_response = api.fetch_request_token(url)
except ValueError as exc:
messages.error(self.request, exc)
return reverse('home')
url = settings.OAUTH_API + settings.OAUTH_AUTHORIZATION_PATH
authorization_url = api.authorization_url(url)
self.request.session['oauth_token'] = fetch_response.get('oauth_token')
self.request.session['oauth_secret'] = fetch_response.get('oauth_token_secret')
self.request.session.modified = True
return authorization_url
class AuthorizeView(RedirectView):
def login_to_django(self):
# Kind of faking it to establish if a user is authenticated later on
data = api_get(self.request, '/users/current')
userid = data['user_id'] or data['email']
username = hashlib.sha256(userid.encode('utf-8')).hexdigest()
password = username
user, _ = User.objects.get_or_create(
username=username, password=password,
)
login(self.request, user)
def get_redirect_url(self, *args, **kwargs):
api = OAuth1Session(
settings.OAUTH_CLIENT_KEY,
settings.OAUTH_CLIENT_SECRET,
resource_owner_key=self.request.session['oauth_token'],
resource_owner_secret=self.request.session['oauth_secret']
)
api.parse_authorization_response(self.request.build_absolute_uri())
url = settings.OAUTH_API + settings.OAUTH_ACCESS_TOKEN_PATH
fetch_response = api.fetch_access_token(url)
self.request.session['oauth_token'] = fetch_response.get('oauth_token')
self.request.session['oauth_secret'] = fetch_response.get('oauth_token_secret')
self.login_to_django()
redirect_url = self.request.GET.get('next', reverse('consumers-index'))
return redirect_url
class LogoutView(RedirectView):
def get_redirect_url(self, *args, **kwargs):
logout(self.request)
return reverse('home')