Fix sanitizer error when values are None (ie nothing to sanitize at a…

…ll).

CHANGES.txt

@@ -1,6 +1,8 @@
 Change History
 ==============
 
+- Fix sanitizer error when values are None (ie nothing to sanitize at all).
+
 2.0.4 - 2020-11-20
 ------------------
 

kotti/sanitizers.py

@@ -138,6 +138,8 @@ def _setup_listeners(settings):
         def _create_handler(attributename, sanitizers):
             def handler(event):
                 value = getattr(event.object, attributename)
+                if value is None:
+                    return
                 for sanitizer_name in sanitizers.split(","):
                     value = settings["kotti.sanitizers"][sanitizer_name](value)
                 setattr(event.object, attributename, value)

kotti/tests/test_sanitizers.py

@@ -112,6 +112,13 @@ def test_listeners(app, root, db_session):
     _verify_no_html(doc.description)
     _verify_xss_protection(doc.body)
 
+    # Test None title
+    root["e"] = doc = Document(
+        name="test", title=None, description=unsanitized, body=unsanitized
+    )
+    db_session.flush()
+    assert doc.title == None
+
 
 def test_sanitize(app, dummy_request):