1 # Copyright 2012 GRNET S.A. All rights reserved.
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4 # without modification, are permitted provided that the following
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37 from image_creator.os_type import OSBase, exclude_task
38 from image_creator.util import warn, output
43 sensitive_userdata = [
51 def get_metadata(self):
52 meta = super(Unix, self).get_metadata()
53 meta["USERS"] = " ".join(self.get_passworded_users())
56 def get_passworded_users(self):
58 regexp = re.compile('(\S+):((?:!\S+)|(?:[^!*]\S+)|):(?:\S*:){6}')
60 for line in self.g.cat('/etc/shadow').splitlines():
61 match = regexp.match(line)
65 user, passwd = match.groups()
66 if len(passwd) > 0 and passwd[0] == '!':
67 warn("Ignoring locked %s account." % user)
74 def data_cleanup_user_accounts(self, print_header=True):
75 """Remove all user account with id more than 1000"""
78 output('Removing all user accounts with id greater than 1000')
80 # Remove users from /etc/passwd
83 for line in self.g.cat('/etc/passwd').splitlines():
84 fields = line.split(':')
85 if int(fields[2]) > 1000:
86 removed_users[fields[0]] = fields
88 passwd.append(':'.join(fields))
90 self.g.write('/etc/passwd', '\n'.join(passwd) + '\n')
92 # Remove the corresponding /etc/shadow entries
94 for line in self.g.cat('/etc/shadow').splitlines():
95 fields = line.split(':')
96 if fields[0] not in removed_users:
97 shadow.append(':'.join(fields))
99 self.g.write('/etc/shadow', "\n".join(shadow) + '\n')
101 # Remove the corresponding /etc/group entries
103 for line in self.g.cat('/etc/group').splitlines():
104 fields = line.split(':')
105 # Remove groups tha have the same name as the removed users
106 if fields[0] not in removed_users:
107 group.append(':'.join(fields))
109 self.g.write('/etc/group', '\n'.join(group) + '\n')
111 # Remove home directories
112 for home in [field[5] for field in removed_users.values()]:
113 if self.g.is_dir(home) and home.startswith('/home/'):
116 def data_cleanup_passwords(self, print_header=True):
117 """Remove all passwords and lock all user accounts"""
120 output('Cleaning up passwords & locking all user accounts')
124 for line in self.g.cat('/etc/shadow').splitlines():
125 fields = line.split(':')
126 if fields[1] not in ('*', '!'):
129 shadow.append(":".join(fields))
131 self.g.write('/etc/shadow', "\n".join(shadow) + '\n')
133 def data_cleanup_cache(self, print_header=True):
134 """Remove all regular files under /var/cache"""
137 output('Removing files under /var/cache')
139 self.foreach_file('/var/cache', self.g.rm, ftype='r')
141 def data_cleanup_tmp(self, print_header=True):
142 """Remove all files under /tmp and /var/tmp"""
145 output('Removing files under /tmp and /var/tmp')
147 self.foreach_file('/tmp', self.g.rm_rf, maxdepth=1)
148 self.foreach_file('/var/tmp', self.g.rm_rf, maxdepth=1)
150 def data_cleanup_log(self, print_header=True):
151 """Empty all files under /var/log"""
154 output('Emptying all files under /var/log')
156 self.foreach_file('/var/log', self.g.truncate, ftype='r')
159 def data_cleanup_mail(self, print_header=True):
160 """Remove all files under /var/mail and /var/spool/mail"""
163 output('Removing files under /var/mail and /var/spool/mail')
165 self.foreach_file('/var/spool/mail', self.g.rm_rf, maxdepth=1)
166 self.foreach_file('/var/mail', self.g.rm_rf, maxdepth=1)
168 def data_cleanup_userdata(self, print_header=True):
169 """Delete sensitive userdata"""
171 homedirs = ['/root'] + self.ls('/home/')
174 output('Removing sensitive user data under %s' % " ".
177 for homedir in homedirs:
178 for data in self.sensitive_userdata:
179 fname = "%s/%s" % (homedir, data)
180 if self.g.is_file(fname):
181 self.g.scrub_file(fname)
183 # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :