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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.
"""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)
"""
import re
from email.Message import Message
from cStringIO import StringIO
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
def process(msg):
if msg.get_content_type() <> 'multipart/mixed' or not msg['x-mailer']:
return None
if msg['x-mailer'][:3].lower() not in ('nov', 'ntm', 'int'):
return None
addrs = {}
# find the first text/plain part in the message
textplain = find_textplain(msg)
if not textplain:
return None
body = StringIO(textplain.get_payload())
while 1:
line = body.readline()
if not line:
break
mo = acre.search(line)
if mo:
addrs[mo.group('addr')] = 1
elif '@' in line:
i = line.find(' ')
if i == 0:
continue
if i < 0:
addrs[line] = 1
else:
addrs[line[:i]] = 1
return addrs.keys()
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