adding 'long_enough' built-in spam-checker

zinnia/settings.py

@@ -43,6 +43,8 @@
     settings, 'ZINNIA_MAIL_COMMENT_NOTIFICATION_RECIPIENTS',
     [manager_tuple[1] for manager_tuple in settings.MANAGERS])
 
+COMMENT_MIN_WORDS = getattr(settings, 'ZINNIA_MIN_WORDS', 4)
+
 UPLOAD_TO = getattr(settings, 'ZINNIA_UPLOAD_TO', 'uploads/zinnia')
 
 PROTOCOL = getattr(settings, 'ZINNIA_PROTOCOL', 'http')

zinnia/spam_checker/backends/long_enough.py

@@ -0,0 +1,14 @@
+"""Long enough spam checker backend for Zinnia"""
+from zinnia.settings import COMMENT_MIN_WORDS
+
+
+def backend(comment, content_object, request):
+    """Backend checking if the comment posted is long enough to be public.
+    Generally a comments with few words is useless. The will avoid
+    comments like this :
+
+    - First !
+    - I don't like.
+    - Check http://spam-ads.com/
+    """
+    return len(comment.comment.split()) < COMMENT_MIN_WORDS

zinnia/tests/__init__.py

@@ -25,6 +25,7 @@
 from zinnia.tests.moderator import EntryCommentModeratorTestCase
 from zinnia.tests.spam_checker import SpamCheckerTestCase
 from zinnia.tests.url_shortener import URLShortenerTestCase
+from zinnia.tests.long_enough import LongEnoughTestCase
 from zinnia.tests.mixins import MixinTestCase
 from zinnia.signals import disconnect_zinnia_signals
 
@@ -44,7 +45,7 @@ def suite():
                   URLShortenerTestCase, EntryCommentModeratorTestCase,
                   ZinniaCustomDetailViews, SpamCheckerTestCase,
                   EntryAdminTestCase, CategoryAdminTestCase,
-                  MixinTestCase)
+                  MixinTestCase, LongEnoughTestCase)
 
     if 'django_xmlrpc' in settings.INSTALLED_APPS:
         test_cases += (PingBackTestCase, MetaWeblogTestCase)

zinnia/tests/long_enough.py

@@ -0,0 +1,36 @@
+"""Test cases for Zinnia's long_enought spam checker"""
+from django.test import TestCase
+from django.contrib import comments
+from django.contrib.auth.models import User
+from django.contrib.sites.models import Site
+
+from zinnia.models import Entry
+from zinnia.managers import PUBLISHED
+from zinnia.spam_checker.backends.long_enough import backend
+
+
+class LongEnoughTestCase(TestCase):
+    """Test cases for zinnia.spam_checker.long_enough"""
+
+    def setUp(self):
+        self.site = Site.objects.get_current()
+        self.author = User.objects.create(username='admin',
+                                          email='admin@example.com')
+
+        params = {'title': 'My test entry',
+                  'content': 'My test entry',
+                  'slug': 'my-test-entry',
+                  'status': PUBLISHED}
+        self.entry = Entry.objects.create(**params)
+        self.entry.sites.add(self.site)
+        self.entry.authors.add(self.author)
+
+    def test_long_enough(self):
+        comment = comments.get_model().objects.create(
+            comment='My Comment', user=self.author, is_public=True,
+            content_object=self.entry, site=self.site)
+        self.assertEquals(backend(comment, self.entry, {}), True)
+
+        comment.comment = 'Hello I just wanted to thank for great article'
+        comment.save()
+        self.assertEquals(backend(comment, self.entry, {}), False)