Various small fixes and also some basic tests for the auth framework

auth.py

@@ -1,8 +1,10 @@
 import hashlib
 from string import lower
 import simplejson as json
+import urllib
+import urllib2
 from django.contrib.auth.models import User, check_password
-import settings
+from settings import *
 
 class DredditAuthBackend:
     """
@@ -15,24 +17,32 @@ class DredditAuthBackend:
         if username and password:
             # Call the webservice
             api_url = 'https://auth.dredd.it/api/user/'
-            import urllib
-            import urllib2
+            auth_handler = urllib2.HTTPBasicAuthHandler()
+            auth_handler.add_password(realm='dredditauth',
+                                     uri=api_url,
+                                     user=DREDDIT_API_USERNAME,
+                                     passwd=DREDDIT_API_PASSWORD)
+            opener = urllib2.build_opener(auth_handler)
+            urllib2.install_opener(opener)
 
             params = { 'user': username }
-            raw = urllib2.urlopen('%s?%s' % (api_url, urllib.urlencode(params)))
+            try:
+                raw = urllib2.urlopen('%s?%s' % (api_url, urllib.urlencode(params)))
+            except urllib2.HTTPError:
+                pass
+            else:
+                obj = json.loads(raw.read())
 
-            obj = json.loads(raw.read())
-
-            if 'password' in obj and check_password(password, obj['password']):
-                email = obj['email']
-                valid = True
+                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)
+            user, created = User.objects.get_or_create(username=username.lower())
             if created:
                 user.set_unusable_password() # disable login through Model backend
                 user.save()
-            if not email is None:
+            if email:
                 user.email = email
             return user
         return None

tests.py

@@ -0,0 +1,10 @@
+from auth import DredditAuthBackend
+import unittest
+
+class AuthLogin(unittest.TestCase):
+    def setUp(self):
+        self.auth = DredditAuthBackend()
+
+    def testLogin(self):    
+        self.assertEquals(self.auth.authenticate(username='invaliduser', password='asdasd'), None)
+        self.assertTrue(self.auth.authenticate(username='testuser', password='testtest'))