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# Copyright (C) 1998-2009 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/>.
"""Contains all the common functionality for msg bounce scanning API.
This module can also be used as the basis for a bounce detection testing
framework. When run as a script, it expects two arguments, the listname and
the filename containing the bounce message.
"""
import sys
# If a bounce detector returns Stop, that means to just discard the message.
# An example is warning messages for temporary delivery problems. These
# shouldn't trigger a bounce notification, but we also don't want to send them
# on to the list administrator.
Stop = object()
BOUNCE_PIPELINE = [
'DSN',
'Qmail',
'Postfix',
'Yahoo',
'Caiwireless',
'Exchange',
'Exim',
'Netscape',
'Compuserve',
'Microsoft',
'GroupWise',
'SMTP32',
'SimpleMatch',
'SimpleWarning',
'Yale',
'LLNL',
]
# msg must be a mimetools.Message
def ScanMessages(mlist, msg):
for module in BOUNCE_PIPELINE:
modname = 'mailman.Bouncers.' + module
__import__(modname)
addrs = sys.modules[modname].process(msg)
if addrs:
# Return addrs even if it is Stop. BounceRunner needs this info.
return addrs
return []
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