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#! @PYTHON@
#
# Copyright (C) 1998-2018 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.

"""List all mailing lists.

Usage: %(program)s [options]

Where:

    -a / --advertised
        List only those mailing lists that are publically advertised

    -p / --public-archive
        List only those lists with public archives.

    --virtual-host-overview=domain
    -V domain
        List only those mailing lists that are homed to the given virtual
        domain.  This only works if the VIRTUAL_HOST_OVERVIEW variable is
        set.

    -b / --bare
        Displays only the list name, with no description.

    -h / --help
        Print this text and exit.

"""

import re
import sys
import getopt
import paths

from Mailman import mm_cfg
from Mailman import MailList
from Mailman import Utils
from Mailman import Errors
from Mailman.i18n import C_

program = sys.argv[0]

def usage(code, msg=''):
    if code:
        fd = sys.stderr
    else:
        fd = sys.stdout
    print >> fd, C_(__doc__)
    if msg:
        print >> fd, msg
    sys.exit(code)



def main():
    try:
        opts, args = getopt.getopt(sys.argv[1:], 'apbV:h',
                                   ['advertised', 'public-archive', 'bare',
                                    'virtual-host-overview=',
                                    'help'])
    except getopt.error, msg:
        usage(1, msg)

    advertised = 0
    public = 0
    vhost = None
    bare = 0
    for opt, arg in opts:
        if opt in ('-h', '--help'):
            usage(0)
        elif opt in ('-a', '--advertised'):
            advertised = 1
        elif opt in ('-p', '--public-archive'):
            public = 1
        elif opt in ('-V', '--virtual-host-overview'):
            vhost = arg
        elif opt in ('-b', '--bare'):
            bare = 1

    names = Utils.list_names()
    names.sort()

    mlists = []
    longest = 0
    for n in names:
        try:
            mlist = MailList.MailList(n, lock=0)
        except Errors.MMUnknownListError:
            # The list could have been deleted by another process.
            continue
        if advertised and not mlist.advertised:
            continue
        if public and mlist.archive_private:
            continue
        if (vhost and mm_cfg.VIRTUAL_HOST_OVERVIEW and
               not re.search('://%s/' % re.escape(vhost),
                   mlist.web_page_url,
                   re.IGNORECASE)):
            continue
        mlists.append(mlist)
        longest = max(len(mlist.real_name), longest)

    if not mlists and not bare:
        print C_('No matching mailing lists found')
        return

    if not bare:
        print len(mlists), C_('matching mailing lists found:')

    format = '%%%ds - %%.%ds' % (longest, 77 - longest)
    for mlist in mlists:
        if bare:
            print mlist.internal_name()
        else:
            description = mlist.description or C_('[no description available]')
            print '   ', format % (mlist.real_name, description)



if __name__ == '__main__':
    main()