1 files changed, 65 insertions, 0 deletions

diff --git a/src/mailman/mta/aliases.py b/src/mailman/mta/aliases.py
new file mode 100644
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+++ b/src/mailman/mta/aliases.py
@@ -0,0 +1,65 @@
+# Copyright (C) 2011 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/>.
+
+"""Utility for generating all the aliases of a mailing list."""
+
+from __future__ import absolute_import, unicode_literals
+
+__metaclass__ = type
+__all__ = [
+    'MailTransportAgentAliases',
+    ]
+
+
+from zope.interface import implements
+
+from mailman.interfaces.mta import IMailTransportAgentAliases
+
+
+SUBDESTINATIONS = (
+    'bounces',
+    'confirm',
+    'join',
+    'leave',
+    'owner',
+    'request',
+    'subscribe',
+    'unsubscribe',
+    )
+
+
+
+class MailTransportAgentAliases:
+    """Utility for generating all the aliases of a mailing list."""
+
+    implements(IMailTransportAgentAliases)
+
+    def aliases(self, mlist):
+        """See `IMailTransportAgentAliases`."""
+        # Always return
+        yield mlist.posting_address
+        for destination in sorted(SUBDESTINATIONS):
+            yield '{0}-{1}@{2}'.format(mlist.list_name,
+                                       destination,
+                                       mlist.host_name)
+
+    def destinations(self, mlist):
+        """See `IMailTransportAgentAliases`."""
+        # Always return
+        yield mlist.list_name
+        for destination in sorted(SUBDESTINATIONS):
+            yield '{0}-{1}'.format(mlist.list_name, destination)