1 files changed, 44 insertions, 0 deletions
diff --git a/mailman/core/rules.py b/mailman/core/rules.py
new file mode 100644
index 000000000..2c1e4fb3b
--- /dev/null
+++ b/mailman/core/rules.py
@@ -0,0 +1,44 @@
+# Copyright (C) 2007-2008 by the Free Software Foundation, Inc.
+#
+# This file is part of GNU Mailman.
+#
+# GNU Mailman is free software: you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation, either version 3 of the License, or (at your option)
+# any later version.
+#
+# GNU Mailman is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.
+
+"""Various rule helpers"""
+
+__metaclass__ = type
+__all__ = [
+    'initialize',
+    ]
+
+
+from zope.interface import implements
+from zope.interface.verify import verifyObject
+
+from mailman.configuration import config
+from mailman.core.plugins import get_plugins
+from mailman.interfaces import IRule
+
+
+
+def initialize():
+    """Find and register all rules in all plugins."""
+    # Find rules in plugins.
+    for rule_finder in get_plugins('mailman.rules'):
+        for rule_class in rule_finder():
+            rule = rule_class()
+            verifyObject(IRule, rule)
+            assert rule.name not in config.rules, (
+                'Duplicate rule "%s" found in %s' % (rule.name, rule_finder))
+            config.rules[rule.name] = rule