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# Copyright (C) 1998-2018 by the Free Software Foundation, Inc.
#
# This program 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 2
# of the License, or (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
"""Compuserve has its own weird format for bounces."""
import re
import email
dcre = re.compile(r'your message could not be delivered', re.IGNORECASE)
acre = re.compile(r'Invalid receiver address: (?P<addr>.*)')
def process(msg):
# simple state machine
# 0 = nothing seen yet
# 1 = intro line seen
state = 0
addrs = []
for line in email.Iterators.body_line_iterator(msg):
if state == 0:
mo = dcre.search(line)
if mo:
state = 1
elif state == 1:
mo = dcre.search(line)
if mo:
break
mo = acre.search(line)
if mo:
addrs.append(mo.group('addr'))
return addrs
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