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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/.
import hashlib
import os
import shutil
import stat
import tarfile
import tempfile
import unittest
import pytest
from mozunit import main
from mozpack.archive import (
DEFAULT_MTIME,
create_tar_bz2_from_files,
create_tar_from_files,
create_tar_gz_from_files,
)
from mozpack.files import GeneratedFile
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")
self.assertEqual(file_hash(gp), "721e00083c17d16df2edbddf40136298c06d0c49")
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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