X-Git-Url: https://code.grnet.gr/git/snf-image-creator/blobdiff_plain/c16922f7c1676fff006b360b60fc495e268031bf..76d4a1c97a6b60dc7d50683454e4ecfb5271d5f8:/image_creator/os_type/unix.py diff --git a/image_creator/os_type/unix.py b/image_creator/os_type/unix.py index 23f9d3e..655fd49 100644 --- a/image_creator/os_type/unix.py +++ b/image_creator/os_type/unix.py @@ -1,14 +1,52 @@ -#!/usr/bin/env python +# Copyright 2012 GRNET S.A. All rights reserved. +# +# Redistribution and use in source and binary forms, with or +# without modification, are permitted provided that the following +# conditions are met: +# +# 1. Redistributions of source code must retain the above +# copyright notice, this list of conditions and the following +# disclaimer. +# +# 2. Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following +# disclaimer in the documentation and/or other materials +# provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS +# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# +# The views and conclusions contained in the software and +# documentation are those of the authors and should not be +# interpreted as representing official policies, either expressed +# or implied, of GRNET S.A. import re import sys -from image_creator.os_type import OSBase +from image_creator.os_type import OSBase, exclude_task +from image_creator.util import warn, output class Unix(OSBase): - sensitive_userdata = ['.bash_history'] + sensitive_userdata = [ + '.bash_history', + '.gnupg', + '.ssh', + '.mozilla', + '.thunderbird' + ] def get_metadata(self): meta = super(Unix, self).get_metadata() @@ -26,36 +64,116 @@ class Unix(OSBase): user, passwd = match.groups() if len(passwd) > 0 and passwd[0] == '!': - print "Warning: Ignoring locked %s account." % user + warn("Ignoring locked %s account." % user) else: users.append(user) return users - def data_cleanup(self): - self.cleanup_userdata() - self.cleanup_tmp() - self.cleanup_log() - self.cleanup_mail() - self.cleanup_cache() + @exclude_task + def data_cleanup_user_accounts(self, print_header=True): + """Remove all user account with id more than 1000""" + + if print_header: + output('Removing all user accounts with id greater than 1000') + + # Remove users from /etc/passwd + passwd = [] + removed_users = {} + for line in self.g.cat('/etc/passwd').splitlines(): + fields = line.split(':') + if int(fields[2]) > 1000: + removed_users[fields[0]] = fields + else: + passwd.append(':'.join(fields)) + + self.g.write('/etc/passwd', '\n'.join(passwd) + '\n') + + # Remove the corresponding /etc/shadow entries + shadow = [] + for line in self.g.cat('/etc/shadow').splitlines(): + fields = line.split(':') + if fields[0] not in removed_users: + shadow.append(':'.join(fields)) + + self.g.write('/etc/shadow', "\n".join(shadow) + '\n') + + # Remove the corresponding /etc/group entries + group = [] + for line in self.g.cat('/etc/group').splitlines(): + fields = line.split(':') + # Remove groups tha have the same name as the removed users + if fields[0] not in removed_users: + group.append(':'.join(fields)) + + self.g.write('/etc/group', '\n'.join(group) + '\n') + + # Remove home directories + for home in [field[5] for field in removed_users.values()]: + if self.g.is_dir(home) and home.startswith('/home/'): + self.g.rm_rf(home) + + def data_cleanup_passwords(self, print_header=True): + """Remove all passwords and lock all user accounts""" + + if print_header: + output('Cleaning up passwords & locking all user accounts') + + shadow = [] + + for line in self.g.cat('/etc/shadow').splitlines(): + fields = line.split(':') + if fields[1] not in ('*', '!'): + fields[1] = '!' + + shadow.append(":".join(fields)) + + self.g.write('/etc/shadow', "\n".join(shadow) + '\n') + + def data_cleanup_cache(self, print_header=True): + """Remove all regular files under /var/cache""" + + if print_header: + output('Removing files under /var/cache') - def cleanup_cache(self): self.foreach_file('/var/cache', self.g.rm, ftype='r') - def cleanup_tmp(self): + def data_cleanup_tmp(self, print_header=True): + """Remove all files under /tmp and /var/tmp""" + + if print_header: + output('Removing files under /tmp and /var/tmp') + self.foreach_file('/tmp', self.g.rm_rf, maxdepth=1) self.foreach_file('/var/tmp', self.g.rm_rf, maxdepth=1) - def cleanup_log(self): + def data_cleanup_log(self, print_header=True): + """Empty all files under /var/log""" + + if print_header: + output('Emptying all files under /var/log') + self.foreach_file('/var/log', self.g.truncate, ftype='r') - def cleanup_mail(self): - self.foreach_file('var/spool/mail', self.g.rm_rf, maxdepth=1) - self.foreach_file('var/mail', self.g.rm_rf, maxdepth=1) + @exclude_task + def data_cleanup_mail(self, print_header=True): + """Remove all files under /var/mail and /var/spool/mail""" + + if print_header: + output('Removing files under /var/mail and /var/spool/mail') + + self.foreach_file('/var/spool/mail', self.g.rm_rf, maxdepth=1) + self.foreach_file('/var/mail', self.g.rm_rf, maxdepth=1) + + def data_cleanup_userdata(self, print_header=True): + """Delete sensitive userdata""" - def cleanup_userdata(self): homedirs = ['/root'] + self.ls('/home/') + if print_header: + output('Removing sensitive user data under %s' % " ". + join(homedirs)) + for homedir in homedirs: for data in self.sensitive_userdata: fname = "%s/%s" % (homedir, data)