~azzar1/unity/add-show-desktop-key

#!/usr/bin/env python

# IVLE - Informatics Virtual Learning Environment

# Copyright (C) 2007-2008 The University of Melbourne

#

# 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 St, Fifth Floor, Boston, MA  02110-1301  USA

# Program: MountAllUsers

# Author:  William Grant

# Date:    4/7/2008

# Script to UnionFS-mount jails for all users on the system.

# Requires root to run.

import sys

import os

import os.path

import optparse

import logging

import ivle.db

import ivle.conf

p = optparse.OptionParser()

p.add_option('--verbose', '-v', action='store_true')

p.add_option('--unmount', '-u', action='store_true')

options, arguments = p.parse_args()

if options.verbose:

    logging.basicConfig(format='%(asctime)s %(levelname)s %(message)s',

                        level=logging.DEBUG)

else:

    logging.basicConfig(format='%(asctime)s %(levelname)s %(message)s',

                        level=logging.WARNING)

if os.getuid() != 0:

    print >> sys.stderr, "%s must be run as root" % \

                          os.path.basename(sys.argv[0])

    sys.exit(1)

try:

    db = ivle.db.DB()

    list = db.get_users()

    res = db.get_all('login', ['login', 'unixid'])

    def repack(flds):

        return (flds['login'], flds['unixid'])

    uids = dict(map(repack,res))

except Exception, message:

    logging.error(str(message))

    sys.exit(1)

logging.info("mass aufs mount started")

list.sort(key=lambda user: user.login)

for user in list:

    login = user.login

    # This is where we'll mount to...

    destdir = os.path.join(ivle.conf.jail_base, login)

    # ... and this is where we'll get the user bits.

    srcdir = os.path.join(ivle.conf.jail_src_base, login)

    try:

        if not options.unmount:

            if not os.path.exists(srcdir):

                logging.info("user %s doesn't have a jail - skipping" % login)

                continue

            if not os.path.exists(destdir):

                logging.debug("user %s had no mountpoint - creating" % login)

                os.mkdir(destdir)

            if os.system('/bin/mount -t aufs -o dirs=%s:%s=ro none %s'

                             % (srcdir,ivle.conf.jail_system,destdir)) == 0:

                logging.info("mounted user %s's jail." % login)

            else:

                logging.error("failed to mount user %s's jail!" % login)

        else:

            os.system('/bin/umount ' + destdir)

            logging.info("unmounted user %s's jail." % login)

    except Exception, message:

        logging.warning(str(message))

        continue

logging.info("mount completed successfully")