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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/>.
"""Parse mystery style generated by MTA at caiwireless.net."""
from __future__ import absolute_import, unicode_literals
__metaclass__ = type
__all__ = [
'Caiwireless',
]
import re
from email.iterators import body_line_iterator
from flufl.enum import Enum
from zope.interface import implements
from mailman.interfaces.bounce import IBounceDetector
tcre = re.compile(r'the following recipients did not receive this message:',
re.IGNORECASE)
acre = re.compile(r'<(?P<addr>[^>]*)>')
class ParseState(Enum):
start = 0
tag_seen = 1
class Caiwireless:
"""Parse mystery style generated by MTA at caiwireless.net."""
implements(IBounceDetector)
def process(self, msg):
if msg.get_content_type() != 'multipart/mixed':
return None
state = ParseState.start
# This format thinks it's a MIME, but it really isn't.
for line in body_line_iterator(msg):
line = line.strip()
if state is ParseState.start and tcre.match(line):
state = ParseState.tag_seen
elif state is ParseState.tag_seen and line:
mo = acre.match(line)
if not mo:
return None
return [mo.group('addr')]
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