Synnefo » snf-image-creator

# Copyright 2012 GRNET S.A. All rights reserved.

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import re

import sys

from image_creator.os_type import OSBase

from image_creator.util import warn

from clint.textui import puts

class Unix(OSBase):

    sensitive_userdata = [

        '.bash_history',

        '.gnupg',

        '.ssh',

        '.mozilla',

        '.thunderbird'

    ]

    def get_metadata(self):

        meta = super(Unix, self).get_metadata()

        meta["USERS"] = " ".join(self.get_passworded_users())

        return meta

    def get_passworded_users(self):

        users = []

        regexp = re.compile('(\S+):((?:!\S+)|(?:[^!*]\S+)|):(?:\S*:){6}')

        for line in self.g.cat('/etc/shadow').splitlines():

            match = regexp.match(line)

            if not match:

                continue

            user, passwd = match.groups()

            if len(passwd) > 0 and passwd[0] == '!':

                warn("Ignoring locked %s account." % user)

            else:

                users.append(user)

        return users

    def data_cleanup_cache(self, print_header=True):

        """Remove all regular files under /var/cache"""

        if print_header:

            puts('Removing files under /var/cache')

        self.foreach_file('/var/cache', self.g.rm, ftype='r')

    def data_cleanup_tmp(self, print_header=True):

        """Remove all files under /tmp and /var/tmp"""

        if print_header:

            puts('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):

        """Empty all files under /var/log"""

        if print_header:

            puts('Emptying all files under /var/log')

        self.foreach_file('/var/log', self.g.truncate, ftype='r')

    def data_cleanup_mail(self, print_header=True):

        """Remove all files under /var/mail and /var/spool/mail"""

        if print_header:

            puts('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"""

        homedirs = ['/root'] + self.ls('/home/')

        if print_header:

            puts('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)

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