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#! /usr/bin/env python
#
# Copyright (C) 1998,1999,2000 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

"""Automatically send a message to a mailing list.
"""

# To use with Postfix, set the following in your main.cf file:
#
# recipient_delimiter = +
# luser_relay = mm+$user@yourdomain.com
# owner_request_special = no

import sys
import os

import paths
from Mailman import mm_cfg
from Mailman import Utils
from Mailman import MailList
from Mailman import Message
from Mailman import Errors
from Mailman.Logging.Utils import LogStdErr
from Mailman.Logging.Syslog import syslog

# Error code if it's really not a Mailman list addr destination
EX_NOUSER = 67

LogStdErr('auto', 'auto')

DISPOSE_MAP = {None     : 'tolist',
               'request': 'torequest',
               'admin'  : 'toadmin',
               'owner'  : 'toadmin',
               }



def fqdn_listname(listname, hostname):
    return ('%s@%s' % (listname, hostname)).lower()



def main():
    # Postfix sets some environment variables based on information gleaned
    # from the original message.  This is the most direct way to figure out
    # which list the message was intended for.
    extension = os.environ.get('EXTENSION', '').lower()
    try:
        listname, subdest = extension.split('-', 1)
        subdest = DISPOSE_MAP.get(subdest)
    except ValueError:
        listname = extension
        subdest = 'tolist'
    try:
        mlist = MailList.MailList(listname, lock=0)
    except Errors.MMListError:
        print >> sys.stderr, 'List not found:', listname
        return EX_NOUSER

    domain = os.environ.get('DOMAIN', '').lower()
    if domain <> mlist.host_name:
        print >> sys.stderr, 'Domain mismatch: %s@%s' % (listname,
                                                         mlist.host_name)
        return EX_NOUSER

    if subdest is None:
        print >> sys.stderr, 'Bad sub-destination:', extension
        return EX_NOUSER

    # Get the message from standard input
    msg = Message.Message(sys.stdin)
    msg.Enqueue(mlist, **{subdest: 1})
    # success
    return 0



if __name__ == '__main__':
    code = main()
    sys.exit(code)