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# Copyright (C) 1998-2011 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/>.
"""This appears to be the format for Novell GroupWise and NTMail
X-Mailer: Novell GroupWise Internet Agent 5.5.3.1
X-Mailer: NTMail v4.30.0012
X-Mailer: Internet Mail Service (5.5.2653.19)
"""
from __future__ import absolute_import, unicode_literals
__metaclass__ = type
__all__ = [
'GroupWise',
]
import re
from email.Message import Message
from cStringIO import StringIO
from zope.interface import implements
from mailman.interfaces.bounce import IBounceDetector
acre = re.compile(r'<(?P<addr>[^>]*)>')
def find_textplain(msg):
if msg.get_content_type() == 'text/plain':
return msg
if msg.is_multipart:
for part in msg.get_payload():
if not isinstance(part, Message):
continue
ret = find_textplain(part)
if ret:
return ret
return None
class GroupWise:
"""Parse Novell GroupWise and NTMail bounces."""
implements(IBounceDetector)
def process(self, msg):
"""See `IBounceDetector`."""
if msg.get_content_type() != 'multipart/mixed' or not msg['x-mailer']:
return None
addresses = set()
# Find the first text/plain part in the message.
text_plain = find_textplain(msg)
if text_plain is None:
return None
body = StringIO(text_plain.get_payload())
for line in body:
mo = acre.search(line)
if mo:
addresses.add(mo.group('addr'))
elif '@' in line:
i = line.find(' ')
if i == 0:
continue
if i < 0:
addresses.add(line)
else:
addresses.add(line[:i])
return list(addresses)
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