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# Copyright (C) 1998-2009 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<addr>[^>]*)>')),
# sz-sb.de, corridor.com, nfg.nl
(_c('the following addresses had'),
_c('transcript of session follows'),
_c(r'<(?P<fulladdr>[^>]*)>|\(expanded from: <?(?P<addr>[^>)]*)>?\)')),
# robanal.demon.co.uk
(_c('this message was created automatically by mail delivery software'),
_c('original message follows'),
_c('rcpt to:\s*<(?P<addr>[^>]*)>')),
# s1.com (InterScan E-Mail VirusWall NT ???)
(_c('message from interscan e-mail viruswall nt'),
_c('end of message'),
_c('rcpt to:\s*<(?P<addr>[^>]*)>')),
# Smail
(_c('failed addresses follow:'),
_c('message text follows:'),
_c(r'\s*(?P<addr>\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<addr>[^>]*)>')),
# 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<addr>.*)$')),
# usa.net
(_c('Intended recipient:\s*(?P<addr>.*)$'),
_c('--------RETURNED MAIL FOLLOWS--------'),
_c('Intended recipient:\s*(?P<addr>.*)$')),
# hotpop.com
(_c('Undeliverable Address:\s*(?P<addr>.*)$'),
_c('Original message attached'),
_c('Undeliverable Address:\s*(?P<addr>.*)$')),
# Another demon.co.uk format
(_c('This message was created automatically by mail delivery'),
_c('^---- START OF RETURNED MESSAGE ----'),
_c("addressed to '(?P<addr>[^']*)'")),
# Prodigy.net full mailbox
(_c("User's mailbox is full:"),
_c('Unable to deliver mail.'),
_c("User's mailbox is full:\s*<(?P<addr>[^>]*)>")),
# Microsoft SMTPSVC
(_c('The email below could not be delivered to the following user:'),
_c('Old message:'),
_c('<(?P<addr>[^>]*)>')),
# 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<addr>[^>]*)>:')),
# googlemail.com
(_c('Delivery to the following recipient(s)? failed'),
_c('----- Original message -----'),
_c('^\s*(?P<addr>[^\s@]+@[^\s@]+)\s*$')),
# kundenserver.de, mxlogic.net
(_c('A message that you( have)? sent could not be delivered'),
_c('^---'),
_c('<(?P<addr>[^>]*)>')),
# another kundenserver.de
(_c('A message that you( have)? sent could not be delivered'),
_c('^---'),
_c('^(?P<addr>[^\s@]+@[^\s@:]+):')),
# thehartford.com and amenworld.com
(_c('Del(i|e)very to the following recipient(s)? (failed|was aborted)'),
# this one may or may not have the original message, but there's nothing
# unique to stop on, so stop on the first line of at least 3 characters
# that doesn't start with 'D' (to not stop immediately) and has no '@'.
_c('^[^D][^@]{2,}$'),
_c('^\s*(. )?(?P<addr>[^\s@]+@[^\s@]+)\s*$')),
# and another thehartfod.com/hartfordlife.com
(_c('^Your message\s*$'),
_c('^because:'),
_c('^\s*(?P<addr>[^\s@]+@[^\s@]+)\s*$')),
# kviv.be (InterScan NT)
(_c('^Unable to deliver message to'),
_c(r'\*+\s+End of message\s+\*+'),
_c('<(?P<addr>[^>]*)>')),
# earthlink.net supported domains
(_c('^Sorry, unable to deliver your message to'),
_c('^A copy of the original message'),
_c('\s*(?P<addr>[^\s@]+@[^\s@]+)\s+')),
# ademe.fr
(_c('^A message could not be delivered to:'),
_c('^Subject:'),
_c('^\s*(?P<addr>[^\s@]+@[^\s@]+)\s*$')),
# andrew.ac.jp
(_c('^Invalid final delivery userid:'),
_c('^Original message follows.'),
_c('\s*(?P<addr>[^\s@]+@[^\s@]+)\s*$')),
# E500_SMTP_Mail_Service@lerctr.org and similar
(_c('---- Failed Recipients ----'),
_c(' Mail ----'),
_c('<(?P<addr>[^>]*)>')),
# cynergycom.net
(_c('A message that you sent could not be delivered'),
_c('^---'),
_c('(?P<addr>[^\s@]+@[^\s@)]+)')),
# LSMTP for Windows
(_c('^--> Error description:\s*$'),
_c('^Error-End:'),
_c('^Error-for:\s+(?P<addr>[^\s@]+@[^\s@]+)')),
# Qmail with a tri-language intro beginning in spanish
(_c('Your message could not be delivered'),
_c('^-'),
_c('<(?P<addr>[^>]*)>:')),
# socgen.com
(_c('Your message could not be delivered to'),
_c('^\s*$'),
_c('(?P<addr>[^\s@]+@[^\s@]+)')),
# dadoservice.it
(_c('Your message has encountered delivery problems'),
_c('Your message reads'),
_c('addressed to\s*(?P<addr>[^\s@]+@[^\s@)]+)')),
# gomaps.com
(_c('Did not reach the following recipient'),
_c('^\s*$'),
_c('\s(?P<addr>[^\s@]+@[^\s@]+)')),
# EYOU MTA SYSTEM
(_c('This is the deliver program at'),
_c('^-'),
_c('^(?P<addr>[^\s@]+@[^\s@<>]+)')),
# A non-standard qmail at ieo.it
(_c('this is the email server at'),
_c('^-'),
_c('\s(?P<addr>[^\s@]+@[^\s@]+)[\s,]')),
# pla.net.py (MDaemon.PRO ?)
(_c('- no such user here'),
_c('There is no user'),
_c('^(?P<addr>[^\s@]+@[^\s@]+)\s')),
# fastdnsservers.com
(_c('The following recipient.*could not be reached'),
_c('bogus stop pattern'),
_c('^(?P<addr>[^\s@]+@[^\s@]+)\s*$')),
# lttf.com
(_c('Could not deliver message to'),
_c('^\s*--'),
_c('^Failed Recipient:\s*(?P<addr>[^\s@]+@[^\s@]+)\s*$')),
# uci.edu
(_c('--------Message not delivered'),
_c('--------Error Detail'),
_c('^\s*(?P<addr>[^\s@]+@[^\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, decode=True):
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[addr.strip('<>')] = 1
elif ecre.search(line):
break
if addrs:
break
return addrs.keys()
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