# Copyright (C) 1998-2006 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. """Recognizes simple heuristically delimited bounces.""" import re import email.Iterators def _c(pattern): return re.compile(pattern, re.IGNORECASE) # This is a list of tuples of the form # # (start cre, end cre, address cre) # # where `cre' means compiled regular expression, start is the line just before # the bouncing address block, end is the line just after the bouncing address # block, and address cre is the regexp that will recognize the addresses. It # must have a group called `addr' which will contain exactly and only the # address that bounced. PATTERNS = [ # sdm.de (_c('here is your list of failed recipients'), _c('here is your returned mail'), _c(r'<(?P[^>]*)>')), # sz-sb.de, corridor.com, nfg.nl (_c('the following addresses had'), _c('transcript of session follows'), _c(r'<(?P[^>]*)>|\(expanded from: [^>)]*)>?\)')), # robanal.demon.co.uk (_c('this message was created automatically by mail delivery software'), _c('original message follows'), _c('rcpt to:\s*<(?P[^>]*)>')), # s1.com (InterScan E-Mail VirusWall NT ???) (_c('message from interscan e-mail viruswall nt'), _c('end of message'), _c('rcpt to:\s*<(?P[^>]*)>')), # Smail (_c('failed addresses follow:'), _c('message text follows:'), _c(r'\s*(?P\S+@\S+)')), # newmail.ru (_c('This is the machine generated message from mail service.'), _c('--- Below the next line is a copy of the message.'), _c('<(?P[^>]*)>')), # turbosport.com runs something called `MDaemon 3.5.2' ??? (_c('The following addresses did NOT receive a copy of your message:'), _c('--- Session Transcript ---'), _c('[>]\s*(?P.*)$')), # usa.net (_c('Intended recipient:\s*(?P.*)$'), _c('--------RETURNED MAIL FOLLOWS--------'), _c('Intended recipient:\s*(?P.*)$')), # hotpop.com (_c('Undeliverable Address:\s*(?P.*)$'), _c('Original message attached'), _c('Undeliverable Address:\s*(?P.*)$')), # Another demon.co.uk format (_c('This message was created automatically by mail delivery'), _c('^---- START OF RETURNED MESSAGE ----'), _c("addressed to '(?P[^']*)'")), # Prodigy.net full mailbox (_c("User's mailbox is full:"), _c('Unable to deliver mail.'), _c("User's mailbox is full:\s*<(?P[^>]*)>")), # Microsoft SMTPSVC (_c('The email below could not be delivered to the following user:'), _c('Old message:'), _c('<(?P[^>]*)>')), # Yahoo on behalf of other domains like sbcglobal.net (_c('Unable to deliver message to the following address\(es\)\.'), _c('--- Original message follows\.'), _c('<(?P[^>]*)>:')), # kundenserver.de (_c('A message that you sent could not be delivered'), _c('^---'), _c('<(?P[^>]*)>')), # another kundenserver.de (_c('A message that you sent could not be delivered'), _c('^---'), _c('^(?P[^\s@]+@[^\s@:]+):')), # thehartford.com (_c('Delivery to the following recipients failed'), _c("Bogus - there actually isn't anything"), _c('^\s*(?P[^\s@]+@[^\s@]+)\s*$')), # and another thehartfod.com/hartfordlife.com (_c('^Your message\s*$'), _c('^because:'), _c('^\s*(?P[^\s@]+@[^\s@]+)\s*$')), # kviv.be (NTMail) (_c('^Unable to deliver message to'), _c(r'\*+\s+End of message\s+\*+'), _c('<(?P[^>]*)>')), # earthlink.net supported domains (_c('^Sorry, unable to deliver your message to'), _c('^A copy of the original message'), _c('\s*(?P[^\s@]+@[^\s@]+)\s+')), # ademe.fr (_c('^A message could not be delivered to:'), _c('^Subject:'), _c('^\s*(?P[^\s@]+@[^\s@]+)\s*$')), # andrew.ac.jp (_c('^Invalid final delivery userid:'), _c('^Original message follows.'), _c('\s*(?P[^\s@]+@[^\s@]+)\s*$')), # E500_SMTP_Mail_Service@lerctr.org (_c('------ Failed Recipients ------'), _c('-------- Returned Mail --------'), _c('<(?P[^>]*)>')), # cynergycom.net (_c('A message that you sent could not be delivered'), _c('^---'), _c('(?P[^\s@]+@[^\s@)]+)')), # Next one goes here... ] def process(msg, patterns=None): if patterns is None: patterns = PATTERNS # simple state machine # 0 = nothing seen yet # 1 = intro seen addrs = {} # MAS: This is a mess. The outer loop used to be over the message # so we only looped through the message once. Looping through the # message for each set of patterns is obviously way more work, but # if we don't do it, problems arise because scre from the wrong # pattern set matches first and then acre doesn't match. The # alternative is to split things into separate modules, but then # we process the message multiple times anyway. for scre, ecre, acre in patterns: state = 0 for line in email.Iterators.body_line_iterator(msg): if state == 0: if scre.search(line): state = 1 if state == 1: mo = acre.search(line) if mo: addr = mo.group('addr') if addr: addrs[mo.group('addr')] = 1 elif ecre.search(line): break if addrs: break return addrs.keys()