X-Git-Url: https://code.grnet.gr/git/snf-image-creator/blobdiff_plain/51fab9c9e64764b4b8bceba69bd151f43cf2b363..fba0968870e13efbe1926fa43363aa56efd79ee4:/image_creator/os_type/unix.py diff --git a/image_creator/os_type/unix.py b/image_creator/os_type/unix.py index 01e0987..2cd8452 100644 --- a/image_creator/os_type/unix.py +++ b/image_creator/os_type/unix.py @@ -34,8 +34,7 @@ import re import sys -from image_creator.os_type import OSBase, exclude_task -from image_creator.util import warn, output +from image_creator.os_type import OSBase, sysprep class Unix(OSBase): @@ -44,16 +43,20 @@ class Unix(OSBase): '.bash_history', '.gnupg', '.ssh', - '.mozilla', - '.thunderbird' + '.kamakirc', + '.kamaki.history' ] - def get_metadata(self): - meta = super(Unix, self).get_metadata() - meta["USERS"] = " ".join(self.get_passworded_users()) - return meta + def __init__(self, rootdev, ghandler, output): + super(Unix, self).__init__(rootdev, ghandler, output) - def get_passworded_users(self): + self.meta["USERS"] = " ".join(self._get_passworded_users()) + # Delete the USERS metadata if empty + if not len(self.meta['USERS']): + self.out.warn("No passworded users found!") + del self.meta['USERS'] + + def _get_passworded_users(self): users = [] regexp = re.compile('(\S+):((?:!\S+)|(?:[^!*]\S+)|):(?:\S*:){6}') @@ -64,17 +67,76 @@ class Unix(OSBase): user, passwd = match.groups() if len(passwd) > 0 and passwd[0] == '!': - warn("Ignoring locked %s account." % user) + self.out.warn("Ignoring locked %s account." % user) else: users.append(user) return users - def data_cleanup_passwords(self, print_header=True): + @sysprep(enabled=False) + def remove_user_accounts(self, print_header=True): + """Remove all user accounts with id greater than 1000""" + + if print_header: + self.out.output("Removing all user accounts with id greater than " + "1000") + + if 'USERS' not in self.meta: + return + + # Remove users from /etc/passwd + passwd = [] + removed_users = {} + metadata_users = self.meta['USERS'].split() + for line in self.g.cat('/etc/passwd').splitlines(): + fields = line.split(':') + if int(fields[2]) > 1000: + removed_users[fields[0]] = fields + # remove it from the USERS metadata too + if fields[0] in metadata_users: + metadata_users.remove(fields[0]) + else: + passwd.append(':'.join(fields)) + + self.meta['USERS'] = " ".join(metadata_users) + + # Delete the USERS metadata if empty + if not len(self.meta['USERS']): + del self.meta['USERS'] + + 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) + + @sysprep() + def 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') + self.out.output("Cleaning up passwords & locking all user " + "accounts") shadow = [] @@ -85,56 +147,62 @@ class Unix(OSBase): shadow.append(":".join(fields)) - self.g.write('/etc/shadow', "\n".join(shadow)) + self.g.write('/etc/shadow', "\n".join(shadow) + '\n') - def data_cleanup_cache(self, print_header=True): + @sysprep() + def cleanup_cache(self, print_header=True): """Remove all regular files under /var/cache""" if print_header: - output('Removing files under /var/cache') + self.out.output('Removing files under /var/cache') self.foreach_file('/var/cache', self.g.rm, ftype='r') - def data_cleanup_tmp(self, print_header=True): + @sysprep() + def 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.out.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 data_cleanup_log(self, print_header=True): + @sysprep() + def cleanup_log(self, print_header=True): """Empty all files under /var/log""" if print_header: - output('Emptying all files under /var/log') + self.out.output('Emptying all files under /var/log') self.foreach_file('/var/log', self.g.truncate, ftype='r') - @exclude_task - def data_cleanup_mail(self, print_header=True): + @sysprep(enabled=False) + def 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.out.output('Removing files under /var/mail & /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): + @sysprep() + def cleanup_userdata(self, print_header=True): """Delete sensitive userdata""" homedirs = ['/root'] + self.ls('/home/') if print_header: - output('Removing sensitive user data under %s' % " ". - join(homedirs)) + self.out.output("Removing sensitive user data under %s" % + " ".join(homedirs)) for homedir in homedirs: for data in self.sensitive_userdata: fname = "%s/%s" % (homedir, data) if self.g.is_file(fname): self.g.scrub_file(fname) + elif self.g.is_dir(fname): + self.foreach_file(fname, self.g.scrub_file, ftype='r') # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :