1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
from __future__ import absolute_import
import hashlib
import os
import shutil
import stat
import tarfile
import tempfile
import unittest
from mozpack.archive import (
DEFAULT_MTIME,
create_tar_from_files,
create_tar_gz_from_files,
create_tar_bz2_from_files,
)
from mozunit import main
MODE_STANDARD = stat.S_IRUSR | stat.S_IWUSR | stat.S_IRGRP | stat.S_IROTH
def file_hash(path):
h = hashlib.sha1()
with open(path, 'rb') as fh:
while True:
data = fh.read(8192)
if not data:
break
h.update(data)
return h.hexdigest()
class TestArchive(unittest.TestCase):
def _create_files(self, root):
files = {}
for i in range(10):
p = os.path.join(root, b'file%d' % i)
with open(p, 'wb') as fh:
fh.write(b'file%d' % i)
# Need to set permissions or umask may influence testing.
os.chmod(p, MODE_STANDARD)
files[b'file%d' % i] = p
return files
def _verify_basic_tarfile(self, tf):
self.assertEqual(len(tf.getmembers()), 10)
names = ['file%d' % i for i in range(10)]
self.assertEqual(tf.getnames(), names)
for ti in tf.getmembers():
self.assertEqual(ti.uid, 0)
self.assertEqual(ti.gid, 0)
self.assertEqual(ti.uname, '')
self.assertEqual(ti.gname, '')
self.assertEqual(ti.mode, MODE_STANDARD)
self.assertEqual(ti.mtime, DEFAULT_MTIME)
def test_dirs_refused(self):
d = tempfile.mkdtemp()
try:
tp = os.path.join(d, 'test.tar')
with open(tp, 'wb') as fh:
with self.assertRaisesRegexp(ValueError, 'not a regular'):
create_tar_from_files(fh, {'test': d})
finally:
shutil.rmtree(d)
def test_setuid_setgid_refused(self):
d = tempfile.mkdtemp()
try:
uid = os.path.join(d, 'setuid')
gid = os.path.join(d, 'setgid')
with open(uid, 'a'):
pass
with open(gid, 'a'):
pass
os.chmod(uid, MODE_STANDARD | stat.S_ISUID)
os.chmod(gid, MODE_STANDARD | stat.S_ISGID)
tp = os.path.join(d, 'test.tar')
with open(tp, 'wb') as fh:
with self.assertRaisesRegexp(ValueError, 'cannot add file with setuid'):
create_tar_from_files(fh, {'test': uid})
with self.assertRaisesRegexp(ValueError, 'cannot add file with setuid'):
create_tar_from_files(fh, {'test': gid})
finally:
shutil.rmtree(d)
def test_create_tar_basic(self):
d = tempfile.mkdtemp()
try:
files = self._create_files(d)
tp = os.path.join(d, 'test.tar')
with open(tp, 'wb') as fh:
create_tar_from_files(fh, files)
# Output should be deterministic.
self.assertEqual(file_hash(tp), 'cd16cee6f13391abd94dfa435d2633b61ed727f1')
with tarfile.open(tp, 'r') as tf:
self._verify_basic_tarfile(tf)
finally:
shutil.rmtree(d)
def test_executable_preserved(self):
d = tempfile.mkdtemp()
try:
p = os.path.join(d, 'exec')
with open(p, 'wb') as fh:
fh.write('#!/bin/bash\n')
os.chmod(p, MODE_STANDARD | stat.S_IXUSR)
tp = os.path.join(d, 'test.tar')
with open(tp, 'wb') as fh:
create_tar_from_files(fh, {'exec': p})
self.assertEqual(file_hash(tp), '357e1b81c0b6cfdfa5d2d118d420025c3c76ee93')
with tarfile.open(tp, 'r') as tf:
m = tf.getmember('exec')
self.assertEqual(m.mode, MODE_STANDARD | stat.S_IXUSR)
finally:
shutil.rmtree(d)
def test_create_tar_gz_basic(self):
d = tempfile.mkdtemp()
try:
files = self._create_files(d)
gp = os.path.join(d, 'test.tar.gz')
with open(gp, 'wb') as fh:
create_tar_gz_from_files(fh, files)
self.assertEqual(file_hash(gp), 'acb602239c1aeb625da5e69336775609516d60f5')
with tarfile.open(gp, 'r:gz') as tf:
self._verify_basic_tarfile(tf)
finally:
shutil.rmtree(d)
def test_tar_gz_name(self):
d = tempfile.mkdtemp()
try:
files = self._create_files(d)
gp = os.path.join(d, 'test.tar.gz')
with open(gp, 'wb') as fh:
create_tar_gz_from_files(fh, files, filename='foobar', compresslevel=1)
self.assertEqual(file_hash(gp), 'fd099f96480cc1100f37baa8e89a6b820dbbcbd3')
with tarfile.open(gp, 'r:gz') as tf:
self._verify_basic_tarfile(tf)
finally:
shutil.rmtree(d)
def test_create_tar_bz2_basic(self):
d = tempfile.mkdtemp()
try:
files = self._create_files(d)
bp = os.path.join(d, 'test.tar.bz2')
with open(bp, 'wb') as fh:
create_tar_bz2_from_files(fh, files)
self.assertEqual(file_hash(bp), '1827ad00dfe7acf857b7a1c95ce100361e3f6eea')
with tarfile.open(bp, 'r:bz2') as tf:
self._verify_basic_tarfile(tf)
finally:
shutil.rmtree(d)
if __name__ == '__main__':
main()
|
