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# Copyright (C) 2007-2012 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/>.
"""The terminal 'discard' chain."""
from __future__ import absolute_import, unicode_literals
__metaclass__ = type
__all__ = [
'DiscardChain',
'DiscardNotification',
]
import logging
from zope.event import notify
from mailman.chains.base import ChainNotification, TerminalChainBase
from mailman.core.i18n import _
log = logging.getLogger('mailman.vette')
class DiscardNotification(ChainNotification):
"""A notification event signaling that a message is being discarded."""
class DiscardChain(TerminalChainBase):
"""Discard a message."""
name = 'discard'
description = _('Discard a message and stop processing.')
def _process(self, mlist, msg, msgdata):
"""See `TerminalChainBase`.
This writes a log message, fires a Zope event and then throws the
message away.
"""
log.info('DISCARD: %s', msg.get('message-id', 'n/a'))
notify(DiscardNotification(mlist, msg, msgdata, self))
# Nothing more needs to happen.
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