From b86b9e223f728b074ac8a1c476e46bbf9011198c Mon Sep 17 00:00:00 2001
From: Andrew Williams <andy@tensixtyone.com>
Date: Mon, 7 Jun 2010 17:58:09 +0100
Subject: [PATCH] Initial commit

---
 __init__.py |  0
 auth.py     | 45 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 __init__.py
 create mode 100644 auth.py

diff --git a/__init__.py b/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/auth.py b/auth.py
new file mode 100644
index 0000000..1ac2f30
--- /dev/null
+++ b/auth.py
@@ -0,0 +1,45 @@
+import hashlib
+from string import lower
+import simplejson as json
+from django.contrib.auth.models import User, check_password
+import settings
+
+class DredditAuthBackend:
+    """
+    Django authentication backend for authenticating against Dreddit's Auth System.
+    """
+    def authenticate(self, username=None, password=None):
+
+        valid = False
+
+        if username and password:
+            # Call the webservice
+            api_url = 'https://auth.dredd.it/api/user/'
+            import urllib
+            import urllib2
+
+            params = { 'user': username }
+            raw = urllib2.urlopen('%s?%s' % (api_url, urllib.urlencode(params)))
+
+            obj = json.loads(raw.read())
+
+            if 'password' in obj and check_password(password, obj['password']):
+                email = obj['email']
+                valid = True
+
+        if valid:
+            user, created = User.objects.get_or_create(username=username)
+            if created:
+                user.set_unusable_password() # disable login through Model backend
+                user.save()
+            if not email is None:
+                user.email = email
+            return user
+        return None
+
+    def get_user(self, user_id):
+        try:
+            return User.objects.get(pk=user_id)
+        except User.DoesNotExist:
+            return None
+