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

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#!/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 bind-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.config
import ivle.database

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)

config = ivle.config.Config()
store = ivle.database.get_store(config)
users = store.find(ivle.database.User).order_by(ivle.database.User.login)

logging.info("mass bind mount started")

for user in users:
    login = user.login
    # This is where we'll mount to...
    destdir = os.path.join(config['paths']['jails']['mounts'], login)
    # ... and this is where we'll get the user bits.
    srcdir = os.path.join(config['paths']['jails']['src'], 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.path.exists(os.path.join(destdir, 'lib')):
                logging.info("%s's jail appears mounted. skipping." % login)
                continue
            # Mount read only root template
            if os.system('/bin/mount --bind -o ro %s %s'
                    % (config['paths']['jails']['template'], destdir)) == 0:
                logging.debug("mounted user %s's root template" % login)
            else:
                logging.debug("failed to mount %s's root template!" % login)
                continue
            # Mount homedir
            if os.system('/bin/mount --bind %s %s'
                    % (os.path.join(srcdir,'home'), os.path.join(destdir,'home'))) == 0:
                logging.debug("mounted user %s's home." % login)
            else:
                logging.error("failed to mount user %s's home!" % login)
                os.system("/bin/umount %s" % destdir)
                continue
            # Mount tmp
            if os.system('/bin/mount --bind %s %s'
                    % (os.path.join(srcdir,'tmp'), os.path.join(destdir,'tmp'))) == 0:
                logging.debug("mounted user %s's tmp." % login)
            else:
                logging.error("failed to mount user %s's tmp!" % login)
                os.system("/bin/umount %s" % os.path.join(destdir,'home'))
                os.system("/bin/umount %s" % destdir)
                continue
            logging.info("mounted user %s's jail" % login)
        else:
            os.system("/bin/umount %s" % os.path.join(destdir,'tmp'))
            os.system("/bin/umount %s" % os.path.join(destdir,'home'))
            os.system("/bin/umount %s" % destdir)
            logging.info("unmounted user %s's jail." % login)
    except Exception, message:
        logging.warning(str(message))
        continue

logging.info("mount completed successfully")