"""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_type(msg.get_default_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_type() <> 'multipart/mixed' or not msg['x-mailer']:
return None
addrs = {}
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()