Initial changes to support the new Django 1.6 project structure

mayan/apps/sources/utils.py

@@ -0,0 +1,35 @@
+import re
+
+from django.core.exceptions import ValidationError
+from django.utils.translation import ugettext
+
+
+# From http://www.peterbe.com/plog/whitelist-blacklist-logic
+def accept_item(value, whitelist, blacklist, default_accept=True):
+    """
+    return true if this item is either whitelisted or
+    not blacklisted
+    """
+    if not whitelist:
+        whitelist = []
+
+    if not blacklist:
+        blacklist = []
+
+    # note the order
+    for reject, item_list in ([False, whitelist], [True, blacklist]):
+        for okpattern in item_list:
+            if re.findall(okpattern.replace('*', '\S+'), value, re.I):
+                # match!
+                if reject:
+                    return False
+                else:
+                    return True
+
+    # default is to accept all
+    return default_accept
+
+
+def validate_whitelist_blacklist(value, whitelist, blacklist):
+    if not accept_item(value, whitelist, blacklist):
+        raise ValidationError(ugettext(u'Whitelist Blacklist validation error.'))