root / image_creator / os_type / unix.py @ f165adc0
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1 | ae48a082 | Nikos Skalkotos | # Copyright 2012 GRNET S.A. All rights reserved.
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2 | ae48a082 | Nikos Skalkotos | #
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3 | ae48a082 | Nikos Skalkotos | # Redistribution and use in source and binary forms, with or
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4 | ae48a082 | Nikos Skalkotos | # without modification, are permitted provided that the following
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5 | ae48a082 | Nikos Skalkotos | # conditions are met:
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6 | ae48a082 | Nikos Skalkotos | #
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7 | ae48a082 | Nikos Skalkotos | # 1. Redistributions of source code must retain the above
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8 | ae48a082 | Nikos Skalkotos | # copyright notice, this list of conditions and the following
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9 | ae48a082 | Nikos Skalkotos | # disclaimer.
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10 | ae48a082 | Nikos Skalkotos | #
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11 | ae48a082 | Nikos Skalkotos | # 2. Redistributions in binary form must reproduce the above
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12 | ae48a082 | Nikos Skalkotos | # copyright notice, this list of conditions and the following
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13 | ae48a082 | Nikos Skalkotos | # disclaimer in the documentation and/or other materials
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14 | ae48a082 | Nikos Skalkotos | # provided with the distribution.
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15 | ae48a082 | Nikos Skalkotos | #
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16 | ae48a082 | Nikos Skalkotos | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | ae48a082 | Nikos Skalkotos | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | ae48a082 | Nikos Skalkotos | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | ae48a082 | Nikos Skalkotos | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | ae48a082 | Nikos Skalkotos | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | ae48a082 | Nikos Skalkotos | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | ae48a082 | Nikos Skalkotos | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | ae48a082 | Nikos Skalkotos | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | ae48a082 | Nikos Skalkotos | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | ae48a082 | Nikos Skalkotos | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | ae48a082 | Nikos Skalkotos | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | ae48a082 | Nikos Skalkotos | # POSSIBILITY OF SUCH DAMAGE.
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28 | ae48a082 | Nikos Skalkotos | #
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29 | ae48a082 | Nikos Skalkotos | # The views and conclusions contained in the software and
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30 | ae48a082 | Nikos Skalkotos | # documentation are those of the authors and should not be
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31 | ae48a082 | Nikos Skalkotos | # interpreted as representing official policies, either expressed
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32 | ae48a082 | Nikos Skalkotos | # or implied, of GRNET S.A.
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33 | aa2062ba | Nikos Skalkotos | |
34 | aa2062ba | Nikos Skalkotos | import re |
35 | 8c574358 | Nikos Skalkotos | import sys |
36 | aa2062ba | Nikos Skalkotos | |
37 | f165adc0 | Nikos Skalkotos | from image_creator.os_type import OSBase, sysprep |
38 | 979096dd | Nikos Skalkotos | from image_creator.util import warn, output |
39 | aa2062ba | Nikos Skalkotos | |
40 | 8c574358 | Nikos Skalkotos | |
41 | aa2062ba | Nikos Skalkotos | class Unix(OSBase): |
42 | 0d5a999d | Nikos Skalkotos | |
43 | f8119e65 | Nikos Skalkotos | sensitive_userdata = [ |
44 | f8119e65 | Nikos Skalkotos | '.bash_history',
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45 | f8119e65 | Nikos Skalkotos | '.gnupg',
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46 | f8119e65 | Nikos Skalkotos | '.ssh',
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47 | f8119e65 | Nikos Skalkotos | '.mozilla',
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48 | f8119e65 | Nikos Skalkotos | '.thunderbird'
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49 | f8119e65 | Nikos Skalkotos | ] |
50 | 0d5a999d | Nikos Skalkotos | |
51 | aa2062ba | Nikos Skalkotos | def get_metadata(self): |
52 | aa2062ba | Nikos Skalkotos | meta = super(Unix, self).get_metadata() |
53 | aa2062ba | Nikos Skalkotos | meta["USERS"] = " ".join(self.get_passworded_users()) |
54 | aa2062ba | Nikos Skalkotos | return meta
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55 | aa2062ba | Nikos Skalkotos | |
56 | aa2062ba | Nikos Skalkotos | def get_passworded_users(self): |
57 | aa2062ba | Nikos Skalkotos | users = [] |
58 | aa2062ba | Nikos Skalkotos | regexp = re.compile('(\S+):((?:!\S+)|(?:[^!*]\S+)|):(?:\S*:){6}')
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59 | aa2062ba | Nikos Skalkotos | |
60 | 36e348b6 | Nikos Skalkotos | for line in self.g.cat('/etc/shadow').splitlines(): |
61 | aa2062ba | Nikos Skalkotos | match = regexp.match(line) |
62 | aa2062ba | Nikos Skalkotos | if not match: |
63 | aa2062ba | Nikos Skalkotos | continue
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64 | aa2062ba | Nikos Skalkotos | |
65 | aa2062ba | Nikos Skalkotos | user, passwd = match.groups() |
66 | aa2062ba | Nikos Skalkotos | if len(passwd) > 0 and passwd[0] == '!': |
67 | 22a6d232 | Nikos Skalkotos | warn("Ignoring locked %s account." % user)
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68 | aa2062ba | Nikos Skalkotos | else:
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69 | aa2062ba | Nikos Skalkotos | users.append(user) |
70 | aa2062ba | Nikos Skalkotos | |
71 | aa2062ba | Nikos Skalkotos | return users
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72 | aa2062ba | Nikos Skalkotos | |
73 | f165adc0 | Nikos Skalkotos | @sysprep(enabled=False) |
74 | f165adc0 | Nikos Skalkotos | def remove_user_accounts(self, print_header=True): |
75 | a9c9d939 | Nikos Skalkotos | """Remove all user account with id more than 1000"""
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76 | a9c9d939 | Nikos Skalkotos | |
77 | a9c9d939 | Nikos Skalkotos | if print_header:
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78 | a9c9d939 | Nikos Skalkotos | output('Removing all user accounts with id greater than 1000')
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79 | a9c9d939 | Nikos Skalkotos | |
80 | a9c9d939 | Nikos Skalkotos | # Remove users from /etc/passwd
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81 | a9c9d939 | Nikos Skalkotos | passwd = [] |
82 | a9c9d939 | Nikos Skalkotos | removed_users = {} |
83 | a9c9d939 | Nikos Skalkotos | for line in self.g.cat('/etc/passwd').splitlines(): |
84 | a9c9d939 | Nikos Skalkotos | fields = line.split(':')
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85 | a9c9d939 | Nikos Skalkotos | if int(fields[2]) > 1000: |
86 | a9c9d939 | Nikos Skalkotos | removed_users[fields[0]] = fields
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87 | a9c9d939 | Nikos Skalkotos | else:
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88 | a9c9d939 | Nikos Skalkotos | passwd.append(':'.join(fields))
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89 | a9c9d939 | Nikos Skalkotos | |
90 | a9c9d939 | Nikos Skalkotos | self.g.write('/etc/passwd', '\n'.join(passwd) + '\n') |
91 | a9c9d939 | Nikos Skalkotos | |
92 | a9c9d939 | Nikos Skalkotos | # Remove the corresponding /etc/shadow entries
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93 | a9c9d939 | Nikos Skalkotos | shadow = [] |
94 | a9c9d939 | Nikos Skalkotos | for line in self.g.cat('/etc/shadow').splitlines(): |
95 | a9c9d939 | Nikos Skalkotos | fields = line.split(':')
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96 | a9c9d939 | Nikos Skalkotos | if fields[0] not in removed_users: |
97 | a9c9d939 | Nikos Skalkotos | shadow.append(':'.join(fields))
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98 | a9c9d939 | Nikos Skalkotos | |
99 | a9c9d939 | Nikos Skalkotos | self.g.write('/etc/shadow', "\n".join(shadow) + '\n') |
100 | a9c9d939 | Nikos Skalkotos | |
101 | a9c9d939 | Nikos Skalkotos | # Remove the corresponding /etc/group entries
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102 | a9c9d939 | Nikos Skalkotos | group = [] |
103 | a9c9d939 | Nikos Skalkotos | for line in self.g.cat('/etc/group').splitlines(): |
104 | a9c9d939 | Nikos Skalkotos | fields = line.split(':')
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105 | a9c9d939 | Nikos Skalkotos | # Remove groups tha have the same name as the removed users
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106 | a9c9d939 | Nikos Skalkotos | if fields[0] not in removed_users: |
107 | a9c9d939 | Nikos Skalkotos | group.append(':'.join(fields))
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108 | a9c9d939 | Nikos Skalkotos | |
109 | a9c9d939 | Nikos Skalkotos | self.g.write('/etc/group', '\n'.join(group) + '\n') |
110 | 4cab6d62 | Nikos Skalkotos | |
111 | a9c9d939 | Nikos Skalkotos | # Remove home directories
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112 | a9c9d939 | Nikos Skalkotos | for home in [field[5] for field in removed_users.values()]: |
113 | a9c9d939 | Nikos Skalkotos | if self.g.is_dir(home) and home.startswith('/home/'): |
114 | a9c9d939 | Nikos Skalkotos | self.g.rm_rf(home)
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115 | a9c9d939 | Nikos Skalkotos | |
116 | f165adc0 | Nikos Skalkotos | @sysprep()
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117 | f165adc0 | Nikos Skalkotos | def cleanup_passwords(self, print_header=True): |
118 | 51fab9c9 | Nikos Skalkotos | """Remove all passwords and lock all user accounts"""
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119 | 51fab9c9 | Nikos Skalkotos | |
120 | 51fab9c9 | Nikos Skalkotos | if print_header:
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121 | 51fab9c9 | Nikos Skalkotos | output('Cleaning up passwords & locking all user accounts')
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122 | 51fab9c9 | Nikos Skalkotos | |
123 | 51fab9c9 | Nikos Skalkotos | shadow = [] |
124 | 51fab9c9 | Nikos Skalkotos | |
125 | 51fab9c9 | Nikos Skalkotos | for line in self.g.cat('/etc/shadow').splitlines(): |
126 | 51fab9c9 | Nikos Skalkotos | fields = line.split(':')
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127 | 51fab9c9 | Nikos Skalkotos | if fields[1] not in ('*', '!'): |
128 | 51fab9c9 | Nikos Skalkotos | fields[1] = '!' |
129 | 51fab9c9 | Nikos Skalkotos | |
130 | 51fab9c9 | Nikos Skalkotos | shadow.append(":".join(fields))
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131 | 51fab9c9 | Nikos Skalkotos | |
132 | a9c9d939 | Nikos Skalkotos | self.g.write('/etc/shadow', "\n".join(shadow) + '\n') |
133 | 51fab9c9 | Nikos Skalkotos | |
134 | f165adc0 | Nikos Skalkotos | @sysprep()
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135 | f165adc0 | Nikos Skalkotos | def cleanup_cache(self, print_header=True): |
136 | f8119e65 | Nikos Skalkotos | """Remove all regular files under /var/cache"""
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137 | 22a6d232 | Nikos Skalkotos | |
138 | 3f70f242 | Nikos Skalkotos | if print_header:
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139 | 979096dd | Nikos Skalkotos | output('Removing files under /var/cache')
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140 | 22a6d232 | Nikos Skalkotos | |
141 | c16922f7 | Nikos Skalkotos | self.foreach_file('/var/cache', self.g.rm, ftype='r') |
142 | 0d5a999d | Nikos Skalkotos | |
143 | f165adc0 | Nikos Skalkotos | @sysprep()
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144 | f165adc0 | Nikos Skalkotos | def cleanup_tmp(self, print_header=True): |
145 | f8119e65 | Nikos Skalkotos | """Remove all files under /tmp and /var/tmp"""
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146 | 22a6d232 | Nikos Skalkotos | |
147 | 3f70f242 | Nikos Skalkotos | if print_header:
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148 | 979096dd | Nikos Skalkotos | output('Removing files under /tmp and /var/tmp')
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149 | 22a6d232 | Nikos Skalkotos | |
150 | 8c574358 | Nikos Skalkotos | self.foreach_file('/tmp', self.g.rm_rf, maxdepth=1) |
151 | 9297c398 | Nikos Skalkotos | self.foreach_file('/var/tmp', self.g.rm_rf, maxdepth=1) |
152 | 0d5a999d | Nikos Skalkotos | |
153 | f165adc0 | Nikos Skalkotos | @sysprep()
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154 | f165adc0 | Nikos Skalkotos | def cleanup_log(self, print_header=True): |
155 | f8119e65 | Nikos Skalkotos | """Empty all files under /var/log"""
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156 | 22a6d232 | Nikos Skalkotos | |
157 | 3f70f242 | Nikos Skalkotos | if print_header:
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158 | 979096dd | Nikos Skalkotos | output('Emptying all files under /var/log')
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159 | 22a6d232 | Nikos Skalkotos | |
160 | 8c574358 | Nikos Skalkotos | self.foreach_file('/var/log', self.g.truncate, ftype='r') |
161 | 0d5a999d | Nikos Skalkotos | |
162 | f165adc0 | Nikos Skalkotos | @sysprep(enabled=False) |
163 | f165adc0 | Nikos Skalkotos | def cleanup_mail(self, print_header=True): |
164 | f8119e65 | Nikos Skalkotos | """Remove all files under /var/mail and /var/spool/mail"""
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165 | 22a6d232 | Nikos Skalkotos | |
166 | 3f70f242 | Nikos Skalkotos | if print_header:
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167 | 979096dd | Nikos Skalkotos | output('Removing files under /var/mail and /var/spool/mail')
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168 | 22a6d232 | Nikos Skalkotos | |
169 | f8119e65 | Nikos Skalkotos | self.foreach_file('/var/spool/mail', self.g.rm_rf, maxdepth=1) |
170 | f8119e65 | Nikos Skalkotos | self.foreach_file('/var/mail', self.g.rm_rf, maxdepth=1) |
171 | 9297c398 | Nikos Skalkotos | |
172 | f165adc0 | Nikos Skalkotos | @sysprep()
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173 | f165adc0 | Nikos Skalkotos | def cleanup_userdata(self, print_header=True): |
174 | f8119e65 | Nikos Skalkotos | """Delete sensitive userdata"""
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175 | 22a6d232 | Nikos Skalkotos | |
176 | 0d5a999d | Nikos Skalkotos | homedirs = ['/root'] + self.ls('/home/') |
177 | 0d5a999d | Nikos Skalkotos | |
178 | 3f70f242 | Nikos Skalkotos | if print_header:
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179 | 979096dd | Nikos Skalkotos | output('Removing sensitive user data under %s' % " ". |
180 | 979096dd | Nikos Skalkotos | join(homedirs)) |
181 | 3f70f242 | Nikos Skalkotos | |
182 | 0d5a999d | Nikos Skalkotos | for homedir in homedirs: |
183 | 0d5a999d | Nikos Skalkotos | for data in self.sensitive_userdata: |
184 | 0d5a999d | Nikos Skalkotos | fname = "%s/%s" % (homedir, data)
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185 | 0d5a999d | Nikos Skalkotos | if self.g.is_file(fname): |
186 | 0d5a999d | Nikos Skalkotos | self.g.scrub_file(fname)
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187 | aa2062ba | Nikos Skalkotos | |
188 | aa2062ba | Nikos Skalkotos | # vim: set sta sts=4 shiftwidth=4 sw=4 et ai : |