Refactor some of the profile retrieval code.

test_oauth/backend.py

@@ -6,16 +6,19 @@ from django.db import transaction
 
 
 from test_oauth.models import TESTOAuth2Data, Character
+from test_oauth.session import TESTOAuth2Session
 
 
 class TESTOAuth2Backend(ModelBackend):
-    def authenticate(self, token=None, id=None, username=None, **profile):
-        if id is None or username is None or token is None:
+    def authenticate(self, token=None, **kwargs):
+        if token is None:
             return None
 
+        profile = TESTOAuth2Session(token=token).profile
+
         user, _ = get_user_model().objects.get_or_create(
-            pk=id,
-            username=username
+            pk=profile['id'],
+            username=profile['username']
         )
 
         data, _ = TESTOAuth2Data.objects.update_or_create(

test_oauth/views.py

@@ -29,8 +29,6 @@ def callback(request):
         .fetch_token(code=request.GET['code'])
     )
 
-    session = TESTOAuth2Session(token=token)
-
-    auth.login(request, auth.authenticate(token=token, **session.profile))
+    auth.login(request, auth.authenticate(token=token))
 
     return redirect(getattr(settings, 'TEST_OAUTH_REDIRECT', '/'))