# Copyright (C) 2010 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.

"""Find a bouncing member that's not a member
and remove bounce_info.  Also remove stale bounce info.

Save as bin/fix_bad_bounce_info.py

Run via

   bin/withlist -a -r fix_bad_bounce_info
"""

import time

from Mailman import Utils
from Mailman.MemberAdaptor import BYBOUNCE

def fix_bad_bounce_info(mlist):
    if not mlist.Locked():
        mlist.Lock()
    now = Utils.midnight(time.localtime()[:3])
    for member in mlist.getBouncingMembers():
        if not mlist.isMember(member):
            del mlist.bounce_info[member]
            print 'list: %s - non-member: %s - bounce_info deleted'\
                   % (mlist.internal_name(), member)
            continue
        if mlist.getDeliveryStatus(member) == BYBOUNCE:
            # This member is being handled by cron/disabled.
            continue
        info = mlist.bounce_info[member]
        # See if this member's bounce information is stale.
        lastbounce = Utils.midnight(info.date)
        if lastbounce + mlist.bounce_info_stale_after < now:
            # Information is stale, so discard it.
            del mlist.bounce_info[member]
            print 'list: %s - member: %s - stale bounce_info deleted'\
                   % (mlist.internal_name(), member)

    mlist.Save()
    mlist.Unlock()