# -*- python -*-
#
# Copyright (C) 2001-2018 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.

"""Process VERP'd bounces.

Called by the wrapper, stdin is the mail message, and argv[1] is the name
of the target mailing list.

Errors are redirected to logs/errors.
"""

import sys

import paths
from Mailman import mm_cfg
from Mailman import Utils
from Mailman.i18n import _
from Mailman.Queue.sbcache import get_switchboard
from Mailman.Logging.Utils import LogStdErr

LogStdErr('error', 'bounces')



def main():
    try:
        listname = sys.argv[1]
    except IndexError:
        print >> sys.stderr, _('bounces script got no listname.')
        sys.exit(1)
    # Make sure the list exists
    if not Utils.list_exists(listname):
        print >> sys.stderr, _('bounces script, list not found: %(listname)s')
        sys.exit(1)
    # Immediately queue the message for the bounces qrunner to process.  The
    # advantage to this approach is that messages should never get lost --
    # some MTAs have a hard limit to the time a filter prog can run.  Postfix
    # is a good example; if the limit is hit, the proc is SIGKILL'd giving us
    # no chance to save the message.
    bounceq = get_switchboard(mm_cfg.BOUNCEQUEUE_DIR)
    bounceq.enqueue(sys.stdin.read(), listname=listname, _plaintext=1)



if __name__ == '__main__':
    main()
