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# 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, print_function
import hashlib
import os
import shutil
import stat
import tarfile
import tempfile
import unittest
import pytest
from mozpack.archive import (
DEFAULT_MTIME,
create_tar_from_files,
create_tar_gz_from_files,
create_tar_bz2_from_files,
)
from mozpack.files import (
GeneratedFile,
)
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, 'file%02d' % i)
with open(p, 'wb') as fh:
fh.write(b'file%02d' % i)
# Need to set permissions or umask may influence testing.
os.chmod(p, MODE_STANDARD)
files['file%02d' % i] = p
for i in range(10):
files['file%02d' % (i + 10)] = GeneratedFile(b'file%02d' % (i + 10))
return files
def _verify_basic_tarfile(self, tf):
self.assertEqual(len(tf.getmembers()), 20)
names = ['file%02d' % i for i in range(20)]
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)
@pytest.mark.xfail(reason='ValueError is not thrown despite being provided directory.')
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)
@pytest.mark.xfail(reason='ValueError is not thrown despite uid/gid being set.')
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), '01cd314e277f060e98c7de6c8ea57f96b3a2065c')
with tarfile.open(tp, 'r') as tf:
self._verify_basic_tarfile(tf)
finally:
shutil.rmtree(d)
@pytest.mark.xfail(reason='hash mismatch')
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), '7c4da5adc5088cdf00911d5daf9a67b15de714b7')
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), '1cc8b96f0262350977c2e9d61f40a1fa76f35c52')
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), 'eb5096d2fbb71df7b3d690001a6f2e82a5aad6a7')
with tarfile.open(bp, 'r:bz2') as tf:
self._verify_basic_tarfile(tf)
finally:
shutil.rmtree(d)
if __name__ == '__main__':
main()
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