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Implement a token endpoint - currently all tokens last forever and can't be revoked, but I can add revocation later without too much trouble

pull/1/head
Danielle McLean 4 years ago
parent
commit
179f5753ed
Signed by: 00dani GPG Key ID: 5A5D2D1AFF12EEC5
  1. 10
      lemonauth/tokens.py
  2. 1
      lemonauth/urls.py
  3. 1
      lemonauth/views/__init__.py
  4. 58
      lemonauth/views/token.py
  5. 24
      lemoncurry/utils.py

10
lemonauth/tokens.py

@ -25,3 +25,13 @@ def gen_auth_code(req):
code['sco'] = ' '.join(req.POST.getlist('scope'))
return encode(code)
def gen_token(code):
tok = {
'uid': code['uid'],
'cid': code['cid'],
'sco': code['sco'],
'iat': datetime.utcnow(),
}
return encode(tok).decode('utf-8')

1
lemonauth/urls.py

@ -7,4 +7,5 @@ urlpatterns = [
url('^logout$', views.logout, name='logout'),
url('^indie$', views.IndieView.as_view(), name='indie'),
url('^indie/approve$', views.indie_approve, name='indie_approve'),
url('^token$', views.TokenView.as_view(), name='token'),
]

1
lemonauth/views/__init__.py

@ -1,3 +1,4 @@
from .login import login
from .logout import logout
from .indie import IndieView, approve as indie_approve
from .token import TokenView

58
lemonauth/views/token.py

@ -0,0 +1,58 @@
from django.contrib.auth import get_user_model
from django.views import View
from django.utils.decorators import method_decorator
from django.views.decorators.csrf import csrf_exempt
from urllib.parse import urljoin
from .. import tokens
from lemoncurry import utils
@method_decorator(csrf_exempt, name='dispatch')
class TokenView(View):
def get(self, req):
token = req.META.get('HTTP_AUTHORIZATION', '').split(' ')
if not token:
return utils.bad_req('missing Authorization header')
if token[0] != 'Bearer':
return utils.bad_req('only Bearer auth is supported')
try:
token = tokens.decode(token[1])
except Exception:
return utils.forbid('invalid token')
user = get_user_model().objects.get(pk=token['uid'])
me = urljoin(utils.origin(req), user.url)
res = {
'me': me,
'client_id': token['cid'],
'scope': token['sco'],
}
return utils.choose_type(req, res)
def post(self, req):
post = req.POST
try:
code = tokens.decode(post.get('code'))
except Exception:
return utils.forbid('invalid auth code')
if code['typ'] != 'code':
return utils.bad_req(
'this endpoint only supports response_type=code'
)
if code['cid'] != post.get('client_id'):
return utils.forbid('client id did not match')
if code['uri'] != post.get('redirect_uri'):
return utils.forbid('redirect uri did not match')
user = get_user_model().objects.get(pk=code['uid'])
me = urljoin(utils.origin(req), user.url)
if me != post.get('me'):
return utils.forbid('me did not match')
return utils.choose_type(req, {
'access_token': tokens.gen_token(code),
'me': me,
'scope': code['sco'],
})

24
lemoncurry/utils.py

@ -1,7 +1,7 @@
import json
from accept_types import get_best_match
from django.conf import settings
from django.http import HttpResponse
from django.http import HttpResponse, JsonResponse
from django.http import HttpResponseForbidden, HttpResponseBadRequest
from os.path import join
from shorturls import default_converter as converter
@ -28,14 +28,6 @@ def uri(request):
return origin(request) + request.path
def choose_type(request, content, reps):
accept = request.META.get('HTTP_ACCEPT', '*/*')
type = get_best_match(accept, reps.keys())
if type:
return reps[type](content)
return HttpResponse(status=406)
def form_encoded_response(content):
return HttpResponse(
urlencode(content),
@ -43,6 +35,20 @@ def form_encoded_response(content):
)
REPS = {
'application/x-www-form-urlencoded': form_encoded_response,
'application/json': JsonResponse,
}
def choose_type(request, content, reps=REPS):
accept = request.META.get('HTTP_ACCEPT', '*/*')
type = get_best_match(accept, reps.keys())
if type:
return reps[type](content)
return HttpResponse(status=406)
def shortlink(obj):
prefix = ShortURL(None).get_prefix(obj)
tinyid = converter.from_decimal(obj.pk)

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