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+# Copyright (C) 1998-2008 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 failed'),
+ _c('----- Original message -----'),
+ _c('^\s*(?P<addr>[^\s@]+@[^\s@]+)\s*$')),
+ # kundenserver.de
+ (_c('A message that you sent could not be delivered'),
+ _c('^---'),
+ _c('<(?P<addr>[^>]*)>')),
+ # another kundenserver.de
+ (_c('A message that you sent could not be delivered'),
+ _c('^---'),
+ _c('^(?P<addr>[^\s@]+@[^\s@:]+):')),
+ # thehartford.com
+ (_c('Delivery to the following recipients failed'),
+ # this one may or may not have the original message, but there's nothing
+ # unique to stop on, so stop on the first line of at least 3 characters
+ # that doesn't start with 'D' (to not stop immediately) and has no '@'.
+ _c('^[^D][^@]{2,}$'),
+ _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*$')),
+ # E500_SMTP_Mail_Service@lerctr.org
+ (_c('------ Failed Recipients ------'),
+ _c('-------- Returned Mail --------'),
+ _c('<(?P<addr>[^>]*)>')),
+ # cynergycom.net
+ (_c('A message that you sent could not be delivered'),
+ _c('^---'),
+ _c('(?P<addr>[^\s@]+@[^\s@)]+)')),
+ # LSMTP for Windows
+ (_c('^--> Error description:\s*$'),
+ _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')),
+ # 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()
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-08 15:32:25 +0000