2182 lines
78 KiB
Python
2182 lines
78 KiB
Python
import sys
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import os
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import io
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import shutil
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from hashlib import md5
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import unittest
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import tarfile
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from test import support, script_helper
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# Check for our compression modules.
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try:
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import gzip
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except ImportError:
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gzip = None
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try:
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import bz2
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except ImportError:
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bz2 = None
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try:
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import lzma
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except ImportError:
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lzma = None
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def md5sum(data):
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return md5(data).hexdigest()
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TEMPDIR = os.path.abspath(support.TESTFN) + "-tardir"
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tarextdir = TEMPDIR + '-extract-test'
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tarname = support.findfile("testtar.tar")
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gzipname = os.path.join(TEMPDIR, "testtar.tar.gz")
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bz2name = os.path.join(TEMPDIR, "testtar.tar.bz2")
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xzname = os.path.join(TEMPDIR, "testtar.tar.xz")
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tmpname = os.path.join(TEMPDIR, "tmp.tar")
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dotlessname = os.path.join(TEMPDIR, "testtar")
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md5_regtype = "65f477c818ad9e15f7feab0c6d37742f"
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md5_sparse = "a54fbc4ca4f4399a90e1b27164012fc6"
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class TarTest:
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tarname = tarname
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suffix = ''
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open = io.FileIO
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taropen = tarfile.TarFile.taropen
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@property
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def mode(self):
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return self.prefix + self.suffix
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@support.requires_gzip
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class GzipTest:
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tarname = gzipname
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suffix = 'gz'
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open = gzip.GzipFile if gzip else None
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taropen = tarfile.TarFile.gzopen
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@support.requires_bz2
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class Bz2Test:
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tarname = bz2name
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suffix = 'bz2'
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open = bz2.BZ2File if bz2 else None
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taropen = tarfile.TarFile.bz2open
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@support.requires_lzma
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class LzmaTest:
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tarname = xzname
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suffix = 'xz'
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open = lzma.LZMAFile if lzma else None
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taropen = tarfile.TarFile.xzopen
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class ReadTest(TarTest):
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prefix = "r:"
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def setUp(self):
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self.tar = tarfile.open(self.tarname, mode=self.mode,
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encoding="iso8859-1")
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def tearDown(self):
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self.tar.close()
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class UstarReadTest(ReadTest, unittest.TestCase):
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def test_fileobj_regular_file(self):
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tarinfo = self.tar.getmember("ustar/regtype")
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with self.tar.extractfile(tarinfo) as fobj:
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data = fobj.read()
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self.assertEqual(len(data), tarinfo.size,
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"regular file extraction failed")
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self.assertEqual(md5sum(data), md5_regtype,
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"regular file extraction failed")
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def test_fileobj_readlines(self):
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self.tar.extract("ustar/regtype", TEMPDIR)
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tarinfo = self.tar.getmember("ustar/regtype")
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with open(os.path.join(TEMPDIR, "ustar/regtype"), "r") as fobj1:
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lines1 = fobj1.readlines()
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with self.tar.extractfile(tarinfo) as fobj:
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fobj2 = io.TextIOWrapper(fobj)
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lines2 = fobj2.readlines()
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self.assertEqual(lines1, lines2,
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"fileobj.readlines() failed")
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self.assertEqual(len(lines2), 114,
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"fileobj.readlines() failed")
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self.assertEqual(lines2[83],
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"I will gladly admit that Python is not the fastest "
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"running scripting language.\n",
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"fileobj.readlines() failed")
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def test_fileobj_iter(self):
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self.tar.extract("ustar/regtype", TEMPDIR)
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tarinfo = self.tar.getmember("ustar/regtype")
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with open(os.path.join(TEMPDIR, "ustar/regtype"), "r") as fobj1:
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lines1 = fobj1.readlines()
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with self.tar.extractfile(tarinfo) as fobj2:
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lines2 = list(io.TextIOWrapper(fobj2))
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self.assertEqual(lines1, lines2,
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"fileobj.__iter__() failed")
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def test_fileobj_seek(self):
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self.tar.extract("ustar/regtype", TEMPDIR)
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with open(os.path.join(TEMPDIR, "ustar/regtype"), "rb") as fobj:
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data = fobj.read()
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tarinfo = self.tar.getmember("ustar/regtype")
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fobj = self.tar.extractfile(tarinfo)
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text = fobj.read()
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fobj.seek(0)
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self.assertEqual(0, fobj.tell(),
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"seek() to file's start failed")
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fobj.seek(2048, 0)
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self.assertEqual(2048, fobj.tell(),
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"seek() to absolute position failed")
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fobj.seek(-1024, 1)
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self.assertEqual(1024, fobj.tell(),
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"seek() to negative relative position failed")
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fobj.seek(1024, 1)
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self.assertEqual(2048, fobj.tell(),
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"seek() to positive relative position failed")
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s = fobj.read(10)
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self.assertEqual(s, data[2048:2058],
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"read() after seek failed")
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fobj.seek(0, 2)
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self.assertEqual(tarinfo.size, fobj.tell(),
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"seek() to file's end failed")
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self.assertEqual(fobj.read(), b"",
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"read() at file's end did not return empty string")
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fobj.seek(-tarinfo.size, 2)
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self.assertEqual(0, fobj.tell(),
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"relative seek() to file's end failed")
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fobj.seek(512)
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s1 = fobj.readlines()
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fobj.seek(512)
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s2 = fobj.readlines()
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self.assertEqual(s1, s2,
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"readlines() after seek failed")
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fobj.seek(0)
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self.assertEqual(len(fobj.readline()), fobj.tell(),
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"tell() after readline() failed")
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fobj.seek(512)
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self.assertEqual(len(fobj.readline()) + 512, fobj.tell(),
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"tell() after seek() and readline() failed")
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fobj.seek(0)
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line = fobj.readline()
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self.assertEqual(fobj.read(), data[len(line):],
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"read() after readline() failed")
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fobj.close()
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def test_fileobj_text(self):
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with self.tar.extractfile("ustar/regtype") as fobj:
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fobj = io.TextIOWrapper(fobj)
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data = fobj.read().encode("iso8859-1")
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self.assertEqual(md5sum(data), md5_regtype)
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try:
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fobj.seek(100)
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except AttributeError:
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# Issue #13815: seek() complained about a missing
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# flush() method.
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self.fail("seeking failed in text mode")
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# Test if symbolic and hard links are resolved by extractfile(). The
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# test link members each point to a regular member whose data is
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# supposed to be exported.
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def _test_fileobj_link(self, lnktype, regtype):
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with self.tar.extractfile(lnktype) as a, \
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self.tar.extractfile(regtype) as b:
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self.assertEqual(a.name, b.name)
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def test_fileobj_link1(self):
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self._test_fileobj_link("ustar/lnktype", "ustar/regtype")
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def test_fileobj_link2(self):
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self._test_fileobj_link("./ustar/linktest2/lnktype",
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"ustar/linktest1/regtype")
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def test_fileobj_symlink1(self):
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self._test_fileobj_link("ustar/symtype", "ustar/regtype")
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def test_fileobj_symlink2(self):
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self._test_fileobj_link("./ustar/linktest2/symtype",
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"ustar/linktest1/regtype")
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def test_issue14160(self):
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self._test_fileobj_link("symtype2", "ustar/regtype")
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class GzipUstarReadTest(GzipTest, UstarReadTest):
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pass
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class Bz2UstarReadTest(Bz2Test, UstarReadTest):
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pass
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class LzmaUstarReadTest(LzmaTest, UstarReadTest):
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pass
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class ListTest(ReadTest, unittest.TestCase):
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# Override setUp to use default encoding (UTF-8)
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def setUp(self):
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self.tar = tarfile.open(self.tarname, mode=self.mode)
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def test_list(self):
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tio = io.TextIOWrapper(io.BytesIO(), 'ascii', newline='\n')
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with support.swap_attr(sys, 'stdout', tio):
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self.tar.list(verbose=False)
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out = tio.detach().getvalue()
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self.assertIn(b'ustar/conttype', out)
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self.assertIn(b'ustar/regtype', out)
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self.assertIn(b'ustar/lnktype', out)
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self.assertIn(b'ustar' + (b'/12345' * 40) + b'67/longname', out)
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self.assertIn(b'./ustar/linktest2/symtype', out)
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self.assertIn(b'./ustar/linktest2/lnktype', out)
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# Make sure it puts trailing slash for directory
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self.assertIn(b'ustar/dirtype/', out)
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self.assertIn(b'ustar/dirtype-with-size/', out)
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# Make sure it is able to print unencodable characters
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def conv(b):
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s = b.decode(self.tar.encoding, 'surrogateescape')
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return s.encode('ascii', 'backslashreplace')
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self.assertIn(conv(b'ustar/umlauts-\xc4\xd6\xdc\xe4\xf6\xfc\xdf'), out)
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self.assertIn(conv(b'misc/regtype-hpux-signed-chksum-'
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b'\xc4\xd6\xdc\xe4\xf6\xfc\xdf'), out)
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self.assertIn(conv(b'misc/regtype-old-v7-signed-chksum-'
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b'\xc4\xd6\xdc\xe4\xf6\xfc\xdf'), out)
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self.assertIn(conv(b'pax/bad-pax-\xe4\xf6\xfc'), out)
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self.assertIn(conv(b'pax/hdrcharset-\xe4\xf6\xfc'), out)
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# Make sure it prints files separated by one newline without any
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# 'ls -l'-like accessories if verbose flag is not being used
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# ...
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# ustar/conttype
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# ustar/regtype
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# ...
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self.assertRegex(out, br'ustar/conttype ?\r?\n'
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br'ustar/regtype ?\r?\n')
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# Make sure it does not print the source of link without verbose flag
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self.assertNotIn(b'link to', out)
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self.assertNotIn(b'->', out)
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def test_list_verbose(self):
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tio = io.TextIOWrapper(io.BytesIO(), 'ascii', newline='\n')
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with support.swap_attr(sys, 'stdout', tio):
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self.tar.list(verbose=True)
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out = tio.detach().getvalue()
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# Make sure it prints files separated by one newline with 'ls -l'-like
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# accessories if verbose flag is being used
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# ...
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# ?rw-r--r-- tarfile/tarfile 7011 2003-01-06 07:19:43 ustar/conttype
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# ?rw-r--r-- tarfile/tarfile 7011 2003-01-06 07:19:43 ustar/regtype
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# ...
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self.assertRegex(out, (br'\?rw-r--r-- tarfile/tarfile\s+7011 '
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br'\d{4}-\d\d-\d\d\s+\d\d:\d\d:\d\d '
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br'ustar/\w+type ?\r?\n') * 2)
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# Make sure it prints the source of link with verbose flag
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self.assertIn(b'ustar/symtype -> regtype', out)
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self.assertIn(b'./ustar/linktest2/symtype -> ../linktest1/regtype', out)
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self.assertIn(b'./ustar/linktest2/lnktype link to '
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b'./ustar/linktest1/regtype', out)
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self.assertIn(b'gnu' + (b'/123' * 125) + b'/longlink link to gnu' +
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(b'/123' * 125) + b'/longname', out)
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self.assertIn(b'pax' + (b'/123' * 125) + b'/longlink link to pax' +
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(b'/123' * 125) + b'/longname', out)
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class GzipListTest(GzipTest, ListTest):
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pass
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class Bz2ListTest(Bz2Test, ListTest):
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pass
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class LzmaListTest(LzmaTest, ListTest):
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pass
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class CommonReadTest(ReadTest):
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def test_empty_tarfile(self):
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# Test for issue6123: Allow opening empty archives.
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# This test checks if tarfile.open() is able to open an empty tar
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# archive successfully. Note that an empty tar archive is not the
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# same as an empty file!
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with tarfile.open(tmpname, self.mode.replace("r", "w")):
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pass
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try:
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tar = tarfile.open(tmpname, self.mode)
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tar.getnames()
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except tarfile.ReadError:
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self.fail("tarfile.open() failed on empty archive")
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else:
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self.assertListEqual(tar.getmembers(), [])
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finally:
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tar.close()
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def test_non_existent_tarfile(self):
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# Test for issue11513: prevent non-existent gzipped tarfiles raising
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# multiple exceptions.
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with self.assertRaisesRegex(FileNotFoundError, "xxx"):
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tarfile.open("xxx", self.mode)
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def test_null_tarfile(self):
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# Test for issue6123: Allow opening empty archives.
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# This test guarantees that tarfile.open() does not treat an empty
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# file as an empty tar archive.
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with open(tmpname, "wb"):
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pass
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self.assertRaises(tarfile.ReadError, tarfile.open, tmpname, self.mode)
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self.assertRaises(tarfile.ReadError, tarfile.open, tmpname)
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def test_ignore_zeros(self):
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# Test TarFile's ignore_zeros option.
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for char in (b'\0', b'a'):
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# Test if EOFHeaderError ('\0') and InvalidHeaderError ('a')
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# are ignored correctly.
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with self.open(tmpname, "w") as fobj:
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fobj.write(char * 1024)
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fobj.write(tarfile.TarInfo("foo").tobuf())
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tar = tarfile.open(tmpname, mode="r", ignore_zeros=True)
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try:
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self.assertListEqual(tar.getnames(), ["foo"],
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"ignore_zeros=True should have skipped the %r-blocks" %
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char)
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finally:
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tar.close()
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class MiscReadTestBase(CommonReadTest):
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def requires_name_attribute(self):
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pass
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def test_no_name_argument(self):
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self.requires_name_attribute()
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with open(self.tarname, "rb") as fobj:
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self.assertIsInstance(fobj.name, str)
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with tarfile.open(fileobj=fobj, mode=self.mode) as tar:
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self.assertIsInstance(tar.name, str)
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self.assertEqual(tar.name, os.path.abspath(fobj.name))
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def test_no_name_attribute(self):
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with open(self.tarname, "rb") as fobj:
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data = fobj.read()
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fobj = io.BytesIO(data)
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self.assertRaises(AttributeError, getattr, fobj, "name")
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tar = tarfile.open(fileobj=fobj, mode=self.mode)
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self.assertIsNone(tar.name)
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def test_empty_name_attribute(self):
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with open(self.tarname, "rb") as fobj:
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data = fobj.read()
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fobj = io.BytesIO(data)
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fobj.name = ""
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with tarfile.open(fileobj=fobj, mode=self.mode) as tar:
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self.assertIsNone(tar.name)
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def test_int_name_attribute(self):
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# Issue 21044: tarfile.open() should handle fileobj with an integer
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# 'name' attribute.
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fd = os.open(self.tarname, os.O_RDONLY)
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with open(fd, 'rb') as fobj:
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self.assertIsInstance(fobj.name, int)
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with tarfile.open(fileobj=fobj, mode=self.mode) as tar:
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self.assertIsNone(tar.name)
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def test_bytes_name_attribute(self):
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self.requires_name_attribute()
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tarname = os.fsencode(self.tarname)
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with open(tarname, 'rb') as fobj:
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self.assertIsInstance(fobj.name, bytes)
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with tarfile.open(fileobj=fobj, mode=self.mode) as tar:
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self.assertIsInstance(tar.name, bytes)
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self.assertEqual(tar.name, os.path.abspath(fobj.name))
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|
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def test_illegal_mode_arg(self):
|
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with open(tmpname, 'wb'):
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pass
|
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with self.assertRaisesRegex(ValueError, 'mode must be '):
|
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tar = self.taropen(tmpname, 'q')
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with self.assertRaisesRegex(ValueError, 'mode must be '):
|
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tar = self.taropen(tmpname, 'rw')
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with self.assertRaisesRegex(ValueError, 'mode must be '):
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tar = self.taropen(tmpname, '')
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|
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def test_fileobj_with_offset(self):
|
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# Skip the first member and store values from the second member
|
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# of the testtar.
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tar = tarfile.open(self.tarname, mode=self.mode)
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try:
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tar.next()
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t = tar.next()
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name = t.name
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offset = t.offset
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with tar.extractfile(t) as f:
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data = f.read()
|
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finally:
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tar.close()
|
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|
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# Open the testtar and seek to the offset of the second member.
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with self.open(self.tarname) as fobj:
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fobj.seek(offset)
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|
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# Test if the tarfile starts with the second member.
|
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tar = tar.open(self.tarname, mode="r:", fileobj=fobj)
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t = tar.next()
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self.assertEqual(t.name, name)
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# Read to the end of fileobj and test if seeking back to the
|
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# beginning works.
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tar.getmembers()
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self.assertEqual(tar.extractfile(t).read(), data,
|
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"seek back did not work")
|
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tar.close()
|
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|
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def test_fail_comp(self):
|
|
# For Gzip and Bz2 Tests: fail with a ReadError on an uncompressed file.
|
|
self.assertRaises(tarfile.ReadError, tarfile.open, tarname, self.mode)
|
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with open(tarname, "rb") as fobj:
|
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self.assertRaises(tarfile.ReadError, tarfile.open,
|
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fileobj=fobj, mode=self.mode)
|
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|
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def test_v7_dirtype(self):
|
|
# Test old style dirtype member (bug #1336623):
|
|
# Old V7 tars create directory members using an AREGTYPE
|
|
# header with a "/" appended to the filename field.
|
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tarinfo = self.tar.getmember("misc/dirtype-old-v7")
|
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self.assertEqual(tarinfo.type, tarfile.DIRTYPE,
|
|
"v7 dirtype failed")
|
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|
|
def test_xstar_type(self):
|
|
# The xstar format stores extra atime and ctime fields inside the
|
|
# space reserved for the prefix field. The prefix field must be
|
|
# ignored in this case, otherwise it will mess up the name.
|
|
try:
|
|
self.tar.getmember("misc/regtype-xstar")
|
|
except KeyError:
|
|
self.fail("failed to find misc/regtype-xstar (mangled prefix?)")
|
|
|
|
def test_check_members(self):
|
|
for tarinfo in self.tar:
|
|
self.assertEqual(int(tarinfo.mtime), 0o7606136617,
|
|
"wrong mtime for %s" % tarinfo.name)
|
|
if not tarinfo.name.startswith("ustar/"):
|
|
continue
|
|
self.assertEqual(tarinfo.uname, "tarfile",
|
|
"wrong uname for %s" % tarinfo.name)
|
|
|
|
def test_find_members(self):
|
|
self.assertEqual(self.tar.getmembers()[-1].name, "misc/eof",
|
|
"could not find all members")
|
|
|
|
@unittest.skipUnless(hasattr(os, "link"),
|
|
"Missing hardlink implementation")
|
|
@support.skip_unless_symlink
|
|
def test_extract_hardlink(self):
|
|
# Test hardlink extraction (e.g. bug #857297).
|
|
with tarfile.open(tarname, errorlevel=1, encoding="iso8859-1") as tar:
|
|
tar.extract("ustar/regtype", TEMPDIR)
|
|
self.addCleanup(os.remove, os.path.join(TEMPDIR, "ustar/regtype"))
|
|
|
|
tar.extract("ustar/lnktype", TEMPDIR)
|
|
self.addCleanup(os.remove, os.path.join(TEMPDIR, "ustar/lnktype"))
|
|
with open(os.path.join(TEMPDIR, "ustar/lnktype"), "rb") as f:
|
|
data = f.read()
|
|
self.assertEqual(md5sum(data), md5_regtype)
|
|
|
|
tar.extract("ustar/symtype", TEMPDIR)
|
|
self.addCleanup(os.remove, os.path.join(TEMPDIR, "ustar/symtype"))
|
|
with open(os.path.join(TEMPDIR, "ustar/symtype"), "rb") as f:
|
|
data = f.read()
|
|
self.assertEqual(md5sum(data), md5_regtype)
|
|
|
|
def test_extractall(self):
|
|
# Test if extractall() correctly restores directory permissions
|
|
# and times (see issue1735).
|
|
tar = tarfile.open(tarname, encoding="iso8859-1")
|
|
DIR = os.path.join(TEMPDIR, "extractall")
|
|
os.mkdir(DIR)
|
|
try:
|
|
directories = [t for t in tar if t.isdir()]
|
|
tar.extractall(DIR, directories)
|
|
for tarinfo in directories:
|
|
path = os.path.join(DIR, tarinfo.name)
|
|
if sys.platform != "win32":
|
|
# Win32 has no support for fine grained permissions.
|
|
self.assertEqual(tarinfo.mode & 0o777,
|
|
os.stat(path).st_mode & 0o777)
|
|
def format_mtime(mtime):
|
|
if isinstance(mtime, float):
|
|
return "{} ({})".format(mtime, mtime.hex())
|
|
else:
|
|
return "{!r} (int)".format(mtime)
|
|
file_mtime = os.path.getmtime(path)
|
|
errmsg = "tar mtime {0} != file time {1} of path {2!a}".format(
|
|
format_mtime(tarinfo.mtime),
|
|
format_mtime(file_mtime),
|
|
path)
|
|
self.assertEqual(tarinfo.mtime, file_mtime, errmsg)
|
|
finally:
|
|
tar.close()
|
|
shutil.rmtree(DIR)
|
|
|
|
def test_extract_directory(self):
|
|
dirtype = "ustar/dirtype"
|
|
DIR = os.path.join(TEMPDIR, "extractdir")
|
|
os.mkdir(DIR)
|
|
try:
|
|
with tarfile.open(tarname, encoding="iso8859-1") as tar:
|
|
tarinfo = tar.getmember(dirtype)
|
|
tar.extract(tarinfo, path=DIR)
|
|
extracted = os.path.join(DIR, dirtype)
|
|
self.assertEqual(os.path.getmtime(extracted), tarinfo.mtime)
|
|
if sys.platform != "win32":
|
|
self.assertEqual(os.stat(extracted).st_mode & 0o777, 0o755)
|
|
finally:
|
|
shutil.rmtree(DIR)
|
|
|
|
def test_init_close_fobj(self):
|
|
# Issue #7341: Close the internal file object in the TarFile
|
|
# constructor in case of an error. For the test we rely on
|
|
# the fact that opening an empty file raises a ReadError.
|
|
empty = os.path.join(TEMPDIR, "empty")
|
|
with open(empty, "wb") as fobj:
|
|
fobj.write(b"")
|
|
|
|
try:
|
|
tar = object.__new__(tarfile.TarFile)
|
|
try:
|
|
tar.__init__(empty)
|
|
except tarfile.ReadError:
|
|
self.assertTrue(tar.fileobj.closed)
|
|
else:
|
|
self.fail("ReadError not raised")
|
|
finally:
|
|
support.unlink(empty)
|
|
|
|
def test_parallel_iteration(self):
|
|
# Issue #16601: Restarting iteration over tarfile continued
|
|
# from where it left off.
|
|
with tarfile.open(self.tarname) as tar:
|
|
for m1, m2 in zip(tar, tar):
|
|
self.assertEqual(m1.offset, m2.offset)
|
|
self.assertEqual(m1.get_info(), m2.get_info())
|
|
|
|
class MiscReadTest(MiscReadTestBase, unittest.TestCase):
|
|
test_fail_comp = None
|
|
|
|
class GzipMiscReadTest(GzipTest, MiscReadTestBase, unittest.TestCase):
|
|
pass
|
|
|
|
class Bz2MiscReadTest(Bz2Test, MiscReadTestBase, unittest.TestCase):
|
|
def requires_name_attribute(self):
|
|
self.skipTest("BZ2File have no name attribute")
|
|
|
|
class LzmaMiscReadTest(LzmaTest, MiscReadTestBase, unittest.TestCase):
|
|
def requires_name_attribute(self):
|
|
self.skipTest("LZMAFile have no name attribute")
|
|
|
|
|
|
class StreamReadTest(CommonReadTest, unittest.TestCase):
|
|
|
|
prefix="r|"
|
|
|
|
def test_read_through(self):
|
|
# Issue #11224: A poorly designed _FileInFile.read() method
|
|
# caused seeking errors with stream tar files.
|
|
for tarinfo in self.tar:
|
|
if not tarinfo.isreg():
|
|
continue
|
|
with self.tar.extractfile(tarinfo) as fobj:
|
|
while True:
|
|
try:
|
|
buf = fobj.read(512)
|
|
except tarfile.StreamError:
|
|
self.fail("simple read-through using "
|
|
"TarFile.extractfile() failed")
|
|
if not buf:
|
|
break
|
|
|
|
def test_fileobj_regular_file(self):
|
|
tarinfo = self.tar.next() # get "regtype" (can't use getmember)
|
|
with self.tar.extractfile(tarinfo) as fobj:
|
|
data = fobj.read()
|
|
self.assertEqual(len(data), tarinfo.size,
|
|
"regular file extraction failed")
|
|
self.assertEqual(md5sum(data), md5_regtype,
|
|
"regular file extraction failed")
|
|
|
|
def test_provoke_stream_error(self):
|
|
tarinfos = self.tar.getmembers()
|
|
with self.tar.extractfile(tarinfos[0]) as f: # read the first member
|
|
self.assertRaises(tarfile.StreamError, f.read)
|
|
|
|
def test_compare_members(self):
|
|
tar1 = tarfile.open(tarname, encoding="iso8859-1")
|
|
try:
|
|
tar2 = self.tar
|
|
|
|
while True:
|
|
t1 = tar1.next()
|
|
t2 = tar2.next()
|
|
if t1 is None:
|
|
break
|
|
self.assertIsNotNone(t2, "stream.next() failed.")
|
|
|
|
if t2.islnk() or t2.issym():
|
|
with self.assertRaises(tarfile.StreamError):
|
|
tar2.extractfile(t2)
|
|
continue
|
|
|
|
v1 = tar1.extractfile(t1)
|
|
v2 = tar2.extractfile(t2)
|
|
if v1 is None:
|
|
continue
|
|
self.assertIsNotNone(v2, "stream.extractfile() failed")
|
|
self.assertEqual(v1.read(), v2.read(),
|
|
"stream extraction failed")
|
|
finally:
|
|
tar1.close()
|
|
|
|
class GzipStreamReadTest(GzipTest, StreamReadTest):
|
|
pass
|
|
|
|
class Bz2StreamReadTest(Bz2Test, StreamReadTest):
|
|
pass
|
|
|
|
class LzmaStreamReadTest(LzmaTest, StreamReadTest):
|
|
pass
|
|
|
|
|
|
class DetectReadTest(TarTest, unittest.TestCase):
|
|
def _testfunc_file(self, name, mode):
|
|
try:
|
|
tar = tarfile.open(name, mode)
|
|
except tarfile.ReadError as e:
|
|
self.fail()
|
|
else:
|
|
tar.close()
|
|
|
|
def _testfunc_fileobj(self, name, mode):
|
|
try:
|
|
with open(name, "rb") as f:
|
|
tar = tarfile.open(name, mode, fileobj=f)
|
|
except tarfile.ReadError as e:
|
|
self.fail()
|
|
else:
|
|
tar.close()
|
|
|
|
def _test_modes(self, testfunc):
|
|
if self.suffix:
|
|
with self.assertRaises(tarfile.ReadError):
|
|
tarfile.open(tarname, mode="r:" + self.suffix)
|
|
with self.assertRaises(tarfile.ReadError):
|
|
tarfile.open(tarname, mode="r|" + self.suffix)
|
|
with self.assertRaises(tarfile.ReadError):
|
|
tarfile.open(self.tarname, mode="r:")
|
|
with self.assertRaises(tarfile.ReadError):
|
|
tarfile.open(self.tarname, mode="r|")
|
|
testfunc(self.tarname, "r")
|
|
testfunc(self.tarname, "r:" + self.suffix)
|
|
testfunc(self.tarname, "r:*")
|
|
testfunc(self.tarname, "r|" + self.suffix)
|
|
testfunc(self.tarname, "r|*")
|
|
|
|
def test_detect_file(self):
|
|
self._test_modes(self._testfunc_file)
|
|
|
|
def test_detect_fileobj(self):
|
|
self._test_modes(self._testfunc_fileobj)
|
|
|
|
class GzipDetectReadTest(GzipTest, DetectReadTest):
|
|
pass
|
|
|
|
class Bz2DetectReadTest(Bz2Test, DetectReadTest):
|
|
def test_detect_stream_bz2(self):
|
|
# Originally, tarfile's stream detection looked for the string
|
|
# "BZh91" at the start of the file. This is incorrect because
|
|
# the '9' represents the blocksize (900kB). If the file was
|
|
# compressed using another blocksize autodetection fails.
|
|
with open(tarname, "rb") as fobj:
|
|
data = fobj.read()
|
|
|
|
# Compress with blocksize 100kB, the file starts with "BZh11".
|
|
with bz2.BZ2File(tmpname, "wb", compresslevel=1) as fobj:
|
|
fobj.write(data)
|
|
|
|
self._testfunc_file(tmpname, "r|*")
|
|
|
|
class LzmaDetectReadTest(LzmaTest, DetectReadTest):
|
|
pass
|
|
|
|
|
|
class MemberReadTest(ReadTest, unittest.TestCase):
|
|
|
|
def _test_member(self, tarinfo, chksum=None, **kwargs):
|
|
if chksum is not None:
|
|
with self.tar.extractfile(tarinfo) as f:
|
|
self.assertEqual(md5sum(f.read()), chksum,
|
|
"wrong md5sum for %s" % tarinfo.name)
|
|
|
|
kwargs["mtime"] = 0o7606136617
|
|
kwargs["uid"] = 1000
|
|
kwargs["gid"] = 100
|
|
if "old-v7" not in tarinfo.name:
|
|
# V7 tar can't handle alphabetic owners.
|
|
kwargs["uname"] = "tarfile"
|
|
kwargs["gname"] = "tarfile"
|
|
for k, v in kwargs.items():
|
|
self.assertEqual(getattr(tarinfo, k), v,
|
|
"wrong value in %s field of %s" % (k, tarinfo.name))
|
|
|
|
def test_find_regtype(self):
|
|
tarinfo = self.tar.getmember("ustar/regtype")
|
|
self._test_member(tarinfo, size=7011, chksum=md5_regtype)
|
|
|
|
def test_find_conttype(self):
|
|
tarinfo = self.tar.getmember("ustar/conttype")
|
|
self._test_member(tarinfo, size=7011, chksum=md5_regtype)
|
|
|
|
def test_find_dirtype(self):
|
|
tarinfo = self.tar.getmember("ustar/dirtype")
|
|
self._test_member(tarinfo, size=0)
|
|
|
|
def test_find_dirtype_with_size(self):
|
|
tarinfo = self.tar.getmember("ustar/dirtype-with-size")
|
|
self._test_member(tarinfo, size=255)
|
|
|
|
def test_find_lnktype(self):
|
|
tarinfo = self.tar.getmember("ustar/lnktype")
|
|
self._test_member(tarinfo, size=0, linkname="ustar/regtype")
|
|
|
|
def test_find_symtype(self):
|
|
tarinfo = self.tar.getmember("ustar/symtype")
|
|
self._test_member(tarinfo, size=0, linkname="regtype")
|
|
|
|
def test_find_blktype(self):
|
|
tarinfo = self.tar.getmember("ustar/blktype")
|
|
self._test_member(tarinfo, size=0, devmajor=3, devminor=0)
|
|
|
|
def test_find_chrtype(self):
|
|
tarinfo = self.tar.getmember("ustar/chrtype")
|
|
self._test_member(tarinfo, size=0, devmajor=1, devminor=3)
|
|
|
|
def test_find_fifotype(self):
|
|
tarinfo = self.tar.getmember("ustar/fifotype")
|
|
self._test_member(tarinfo, size=0)
|
|
|
|
def test_find_sparse(self):
|
|
tarinfo = self.tar.getmember("ustar/sparse")
|
|
self._test_member(tarinfo, size=86016, chksum=md5_sparse)
|
|
|
|
def test_find_gnusparse(self):
|
|
tarinfo = self.tar.getmember("gnu/sparse")
|
|
self._test_member(tarinfo, size=86016, chksum=md5_sparse)
|
|
|
|
def test_find_gnusparse_00(self):
|
|
tarinfo = self.tar.getmember("gnu/sparse-0.0")
|
|
self._test_member(tarinfo, size=86016, chksum=md5_sparse)
|
|
|
|
def test_find_gnusparse_01(self):
|
|
tarinfo = self.tar.getmember("gnu/sparse-0.1")
|
|
self._test_member(tarinfo, size=86016, chksum=md5_sparse)
|
|
|
|
def test_find_gnusparse_10(self):
|
|
tarinfo = self.tar.getmember("gnu/sparse-1.0")
|
|
self._test_member(tarinfo, size=86016, chksum=md5_sparse)
|
|
|
|
def test_find_umlauts(self):
|
|
tarinfo = self.tar.getmember("ustar/umlauts-"
|
|
"\xc4\xd6\xdc\xe4\xf6\xfc\xdf")
|
|
self._test_member(tarinfo, size=7011, chksum=md5_regtype)
|
|
|
|
def test_find_ustar_longname(self):
|
|
name = "ustar/" + "12345/" * 39 + "1234567/longname"
|
|
self.assertIn(name, self.tar.getnames())
|
|
|
|
def test_find_regtype_oldv7(self):
|
|
tarinfo = self.tar.getmember("misc/regtype-old-v7")
|
|
self._test_member(tarinfo, size=7011, chksum=md5_regtype)
|
|
|
|
def test_find_pax_umlauts(self):
|
|
self.tar.close()
|
|
self.tar = tarfile.open(self.tarname, mode=self.mode,
|
|
encoding="iso8859-1")
|
|
tarinfo = self.tar.getmember("pax/umlauts-"
|
|
"\xc4\xd6\xdc\xe4\xf6\xfc\xdf")
|
|
self._test_member(tarinfo, size=7011, chksum=md5_regtype)
|
|
|
|
|
|
class LongnameTest:
|
|
|
|
def test_read_longname(self):
|
|
# Test reading of longname (bug #1471427).
|
|
longname = self.subdir + "/" + "123/" * 125 + "longname"
|
|
try:
|
|
tarinfo = self.tar.getmember(longname)
|
|
except KeyError:
|
|
self.fail("longname not found")
|
|
self.assertNotEqual(tarinfo.type, tarfile.DIRTYPE,
|
|
"read longname as dirtype")
|
|
|
|
def test_read_longlink(self):
|
|
longname = self.subdir + "/" + "123/" * 125 + "longname"
|
|
longlink = self.subdir + "/" + "123/" * 125 + "longlink"
|
|
try:
|
|
tarinfo = self.tar.getmember(longlink)
|
|
except KeyError:
|
|
self.fail("longlink not found")
|
|
self.assertEqual(tarinfo.linkname, longname, "linkname wrong")
|
|
|
|
def test_truncated_longname(self):
|
|
longname = self.subdir + "/" + "123/" * 125 + "longname"
|
|
tarinfo = self.tar.getmember(longname)
|
|
offset = tarinfo.offset
|
|
self.tar.fileobj.seek(offset)
|
|
fobj = io.BytesIO(self.tar.fileobj.read(3 * 512))
|
|
with self.assertRaises(tarfile.ReadError):
|
|
tarfile.open(name="foo.tar", fileobj=fobj)
|
|
|
|
def test_header_offset(self):
|
|
# Test if the start offset of the TarInfo object includes
|
|
# the preceding extended header.
|
|
longname = self.subdir + "/" + "123/" * 125 + "longname"
|
|
offset = self.tar.getmember(longname).offset
|
|
with open(tarname, "rb") as fobj:
|
|
fobj.seek(offset)
|
|
tarinfo = tarfile.TarInfo.frombuf(fobj.read(512),
|
|
"iso8859-1", "strict")
|
|
self.assertEqual(tarinfo.type, self.longnametype)
|
|
|
|
|
|
class GNUReadTest(LongnameTest, ReadTest, unittest.TestCase):
|
|
|
|
subdir = "gnu"
|
|
longnametype = tarfile.GNUTYPE_LONGNAME
|
|
|
|
# Since 3.2 tarfile is supposed to accurately restore sparse members and
|
|
# produce files with holes. This is what we actually want to test here.
|
|
# Unfortunately, not all platforms/filesystems support sparse files, and
|
|
# even on platforms that do it is non-trivial to make reliable assertions
|
|
# about holes in files. Therefore, we first do one basic test which works
|
|
# an all platforms, and after that a test that will work only on
|
|
# platforms/filesystems that prove to support sparse files.
|
|
def _test_sparse_file(self, name):
|
|
self.tar.extract(name, TEMPDIR)
|
|
filename = os.path.join(TEMPDIR, name)
|
|
with open(filename, "rb") as fobj:
|
|
data = fobj.read()
|
|
self.assertEqual(md5sum(data), md5_sparse,
|
|
"wrong md5sum for %s" % name)
|
|
|
|
if self._fs_supports_holes():
|
|
s = os.stat(filename)
|
|
self.assertLess(s.st_blocks * 512, s.st_size)
|
|
|
|
def test_sparse_file_old(self):
|
|
self._test_sparse_file("gnu/sparse")
|
|
|
|
def test_sparse_file_00(self):
|
|
self._test_sparse_file("gnu/sparse-0.0")
|
|
|
|
def test_sparse_file_01(self):
|
|
self._test_sparse_file("gnu/sparse-0.1")
|
|
|
|
def test_sparse_file_10(self):
|
|
self._test_sparse_file("gnu/sparse-1.0")
|
|
|
|
@staticmethod
|
|
def _fs_supports_holes():
|
|
# Return True if the platform knows the st_blocks stat attribute and
|
|
# uses st_blocks units of 512 bytes, and if the filesystem is able to
|
|
# store holes in files.
|
|
if sys.platform.startswith("linux"):
|
|
# Linux evidentially has 512 byte st_blocks units.
|
|
name = os.path.join(TEMPDIR, "sparse-test")
|
|
with open(name, "wb") as fobj:
|
|
fobj.seek(4096)
|
|
fobj.truncate()
|
|
s = os.stat(name)
|
|
os.remove(name)
|
|
return s.st_blocks == 0
|
|
else:
|
|
return False
|
|
|
|
|
|
class PaxReadTest(LongnameTest, ReadTest, unittest.TestCase):
|
|
|
|
subdir = "pax"
|
|
longnametype = tarfile.XHDTYPE
|
|
|
|
def test_pax_global_headers(self):
|
|
tar = tarfile.open(tarname, encoding="iso8859-1")
|
|
try:
|
|
tarinfo = tar.getmember("pax/regtype1")
|
|
self.assertEqual(tarinfo.uname, "foo")
|
|
self.assertEqual(tarinfo.gname, "bar")
|
|
self.assertEqual(tarinfo.pax_headers.get("VENDOR.umlauts"),
|
|
"\xc4\xd6\xdc\xe4\xf6\xfc\xdf")
|
|
|
|
tarinfo = tar.getmember("pax/regtype2")
|
|
self.assertEqual(tarinfo.uname, "")
|
|
self.assertEqual(tarinfo.gname, "bar")
|
|
self.assertEqual(tarinfo.pax_headers.get("VENDOR.umlauts"),
|
|
"\xc4\xd6\xdc\xe4\xf6\xfc\xdf")
|
|
|
|
tarinfo = tar.getmember("pax/regtype3")
|
|
self.assertEqual(tarinfo.uname, "tarfile")
|
|
self.assertEqual(tarinfo.gname, "tarfile")
|
|
self.assertEqual(tarinfo.pax_headers.get("VENDOR.umlauts"),
|
|
"\xc4\xd6\xdc\xe4\xf6\xfc\xdf")
|
|
finally:
|
|
tar.close()
|
|
|
|
def test_pax_number_fields(self):
|
|
# All following number fields are read from the pax header.
|
|
tar = tarfile.open(tarname, encoding="iso8859-1")
|
|
try:
|
|
tarinfo = tar.getmember("pax/regtype4")
|
|
self.assertEqual(tarinfo.size, 7011)
|
|
self.assertEqual(tarinfo.uid, 123)
|
|
self.assertEqual(tarinfo.gid, 123)
|
|
self.assertEqual(tarinfo.mtime, 1041808783.0)
|
|
self.assertEqual(type(tarinfo.mtime), float)
|
|
self.assertEqual(float(tarinfo.pax_headers["atime"]), 1041808783.0)
|
|
self.assertEqual(float(tarinfo.pax_headers["ctime"]), 1041808783.0)
|
|
finally:
|
|
tar.close()
|
|
|
|
|
|
class WriteTestBase(TarTest):
|
|
# Put all write tests in here that are supposed to be tested
|
|
# in all possible mode combinations.
|
|
|
|
def test_fileobj_no_close(self):
|
|
fobj = io.BytesIO()
|
|
tar = tarfile.open(fileobj=fobj, mode=self.mode)
|
|
tar.addfile(tarfile.TarInfo("foo"))
|
|
tar.close()
|
|
self.assertFalse(fobj.closed, "external fileobjs must never closed")
|
|
# Issue #20238: Incomplete gzip output with mode="w:gz"
|
|
data = fobj.getvalue()
|
|
del tar
|
|
support.gc_collect()
|
|
self.assertFalse(fobj.closed)
|
|
self.assertEqual(data, fobj.getvalue())
|
|
|
|
|
|
class WriteTest(WriteTestBase, unittest.TestCase):
|
|
|
|
prefix = "w:"
|
|
|
|
def test_100_char_name(self):
|
|
# The name field in a tar header stores strings of at most 100 chars.
|
|
# If a string is shorter than 100 chars it has to be padded with '\0',
|
|
# which implies that a string of exactly 100 chars is stored without
|
|
# a trailing '\0'.
|
|
name = "0123456789" * 10
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
try:
|
|
t = tarfile.TarInfo(name)
|
|
tar.addfile(t)
|
|
finally:
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname)
|
|
try:
|
|
self.assertEqual(tar.getnames()[0], name,
|
|
"failed to store 100 char filename")
|
|
finally:
|
|
tar.close()
|
|
|
|
def test_tar_size(self):
|
|
# Test for bug #1013882.
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
try:
|
|
path = os.path.join(TEMPDIR, "file")
|
|
with open(path, "wb") as fobj:
|
|
fobj.write(b"aaa")
|
|
tar.add(path)
|
|
finally:
|
|
tar.close()
|
|
self.assertGreater(os.path.getsize(tmpname), 0,
|
|
"tarfile is empty")
|
|
|
|
# The test_*_size tests test for bug #1167128.
|
|
def test_file_size(self):
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
try:
|
|
path = os.path.join(TEMPDIR, "file")
|
|
with open(path, "wb"):
|
|
pass
|
|
tarinfo = tar.gettarinfo(path)
|
|
self.assertEqual(tarinfo.size, 0)
|
|
|
|
with open(path, "wb") as fobj:
|
|
fobj.write(b"aaa")
|
|
tarinfo = tar.gettarinfo(path)
|
|
self.assertEqual(tarinfo.size, 3)
|
|
finally:
|
|
tar.close()
|
|
|
|
def test_directory_size(self):
|
|
path = os.path.join(TEMPDIR, "directory")
|
|
os.mkdir(path)
|
|
try:
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
try:
|
|
tarinfo = tar.gettarinfo(path)
|
|
self.assertEqual(tarinfo.size, 0)
|
|
finally:
|
|
tar.close()
|
|
finally:
|
|
os.rmdir(path)
|
|
|
|
@unittest.skipUnless(hasattr(os, "link"),
|
|
"Missing hardlink implementation")
|
|
def test_link_size(self):
|
|
link = os.path.join(TEMPDIR, "link")
|
|
target = os.path.join(TEMPDIR, "link_target")
|
|
with open(target, "wb") as fobj:
|
|
fobj.write(b"aaa")
|
|
os.link(target, link)
|
|
try:
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
try:
|
|
# Record the link target in the inodes list.
|
|
tar.gettarinfo(target)
|
|
tarinfo = tar.gettarinfo(link)
|
|
self.assertEqual(tarinfo.size, 0)
|
|
finally:
|
|
tar.close()
|
|
finally:
|
|
os.remove(target)
|
|
os.remove(link)
|
|
|
|
@support.skip_unless_symlink
|
|
def test_symlink_size(self):
|
|
path = os.path.join(TEMPDIR, "symlink")
|
|
os.symlink("link_target", path)
|
|
try:
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
try:
|
|
tarinfo = tar.gettarinfo(path)
|
|
self.assertEqual(tarinfo.size, 0)
|
|
finally:
|
|
tar.close()
|
|
finally:
|
|
os.remove(path)
|
|
|
|
def test_add_self(self):
|
|
# Test for #1257255.
|
|
dstname = os.path.abspath(tmpname)
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
try:
|
|
self.assertEqual(tar.name, dstname,
|
|
"archive name must be absolute")
|
|
tar.add(dstname)
|
|
self.assertEqual(tar.getnames(), [],
|
|
"added the archive to itself")
|
|
|
|
cwd = os.getcwd()
|
|
os.chdir(TEMPDIR)
|
|
tar.add(dstname)
|
|
os.chdir(cwd)
|
|
self.assertEqual(tar.getnames(), [],
|
|
"added the archive to itself")
|
|
finally:
|
|
tar.close()
|
|
|
|
def test_exclude(self):
|
|
tempdir = os.path.join(TEMPDIR, "exclude")
|
|
os.mkdir(tempdir)
|
|
try:
|
|
for name in ("foo", "bar", "baz"):
|
|
name = os.path.join(tempdir, name)
|
|
support.create_empty_file(name)
|
|
|
|
exclude = os.path.isfile
|
|
|
|
tar = tarfile.open(tmpname, self.mode, encoding="iso8859-1")
|
|
try:
|
|
with support.check_warnings(("use the filter argument",
|
|
DeprecationWarning)):
|
|
tar.add(tempdir, arcname="empty_dir", exclude=exclude)
|
|
finally:
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname, "r")
|
|
try:
|
|
self.assertEqual(len(tar.getmembers()), 1)
|
|
self.assertEqual(tar.getnames()[0], "empty_dir")
|
|
finally:
|
|
tar.close()
|
|
finally:
|
|
shutil.rmtree(tempdir)
|
|
|
|
def test_filter(self):
|
|
tempdir = os.path.join(TEMPDIR, "filter")
|
|
os.mkdir(tempdir)
|
|
try:
|
|
for name in ("foo", "bar", "baz"):
|
|
name = os.path.join(tempdir, name)
|
|
support.create_empty_file(name)
|
|
|
|
def filter(tarinfo):
|
|
if os.path.basename(tarinfo.name) == "bar":
|
|
return
|
|
tarinfo.uid = 123
|
|
tarinfo.uname = "foo"
|
|
return tarinfo
|
|
|
|
tar = tarfile.open(tmpname, self.mode, encoding="iso8859-1")
|
|
try:
|
|
tar.add(tempdir, arcname="empty_dir", filter=filter)
|
|
finally:
|
|
tar.close()
|
|
|
|
# Verify that filter is a keyword-only argument
|
|
with self.assertRaises(TypeError):
|
|
tar.add(tempdir, "empty_dir", True, None, filter)
|
|
|
|
tar = tarfile.open(tmpname, "r")
|
|
try:
|
|
for tarinfo in tar:
|
|
self.assertEqual(tarinfo.uid, 123)
|
|
self.assertEqual(tarinfo.uname, "foo")
|
|
self.assertEqual(len(tar.getmembers()), 3)
|
|
finally:
|
|
tar.close()
|
|
finally:
|
|
shutil.rmtree(tempdir)
|
|
|
|
# Guarantee that stored pathnames are not modified. Don't
|
|
# remove ./ or ../ or double slashes. Still make absolute
|
|
# pathnames relative.
|
|
# For details see bug #6054.
|
|
def _test_pathname(self, path, cmp_path=None, dir=False):
|
|
# Create a tarfile with an empty member named path
|
|
# and compare the stored name with the original.
|
|
foo = os.path.join(TEMPDIR, "foo")
|
|
if not dir:
|
|
support.create_empty_file(foo)
|
|
else:
|
|
os.mkdir(foo)
|
|
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
try:
|
|
tar.add(foo, arcname=path)
|
|
finally:
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname, "r")
|
|
try:
|
|
t = tar.next()
|
|
finally:
|
|
tar.close()
|
|
|
|
if not dir:
|
|
os.remove(foo)
|
|
else:
|
|
os.rmdir(foo)
|
|
|
|
self.assertEqual(t.name, cmp_path or path.replace(os.sep, "/"))
|
|
|
|
|
|
@support.skip_unless_symlink
|
|
def test_extractall_symlinks(self):
|
|
# Test if extractall works properly when tarfile contains symlinks
|
|
tempdir = os.path.join(TEMPDIR, "testsymlinks")
|
|
temparchive = os.path.join(TEMPDIR, "testsymlinks.tar")
|
|
os.mkdir(tempdir)
|
|
try:
|
|
source_file = os.path.join(tempdir,'source')
|
|
target_file = os.path.join(tempdir,'symlink')
|
|
with open(source_file,'w') as f:
|
|
f.write('something\n')
|
|
os.symlink(source_file, target_file)
|
|
tar = tarfile.open(temparchive,'w')
|
|
tar.add(source_file)
|
|
tar.add(target_file)
|
|
tar.close()
|
|
# Let's extract it to the location which contains the symlink
|
|
tar = tarfile.open(temparchive,'r')
|
|
# this should not raise OSError: [Errno 17] File exists
|
|
try:
|
|
tar.extractall(path=tempdir)
|
|
except OSError:
|
|
self.fail("extractall failed with symlinked files")
|
|
finally:
|
|
tar.close()
|
|
finally:
|
|
os.unlink(temparchive)
|
|
shutil.rmtree(tempdir)
|
|
|
|
def test_pathnames(self):
|
|
self._test_pathname("foo")
|
|
self._test_pathname(os.path.join("foo", ".", "bar"))
|
|
self._test_pathname(os.path.join("foo", "..", "bar"))
|
|
self._test_pathname(os.path.join(".", "foo"))
|
|
self._test_pathname(os.path.join(".", "foo", "."))
|
|
self._test_pathname(os.path.join(".", "foo", ".", "bar"))
|
|
self._test_pathname(os.path.join(".", "foo", "..", "bar"))
|
|
self._test_pathname(os.path.join(".", "foo", "..", "bar"))
|
|
self._test_pathname(os.path.join("..", "foo"))
|
|
self._test_pathname(os.path.join("..", "foo", ".."))
|
|
self._test_pathname(os.path.join("..", "foo", ".", "bar"))
|
|
self._test_pathname(os.path.join("..", "foo", "..", "bar"))
|
|
|
|
self._test_pathname("foo" + os.sep + os.sep + "bar")
|
|
self._test_pathname("foo" + os.sep + os.sep, "foo", dir=True)
|
|
|
|
def test_abs_pathnames(self):
|
|
if sys.platform == "win32":
|
|
self._test_pathname("C:\\foo", "foo")
|
|
else:
|
|
self._test_pathname("/foo", "foo")
|
|
self._test_pathname("///foo", "foo")
|
|
|
|
def test_cwd(self):
|
|
# Test adding the current working directory.
|
|
cwd = os.getcwd()
|
|
os.chdir(TEMPDIR)
|
|
try:
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
try:
|
|
tar.add(".")
|
|
finally:
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname, "r")
|
|
try:
|
|
for t in tar:
|
|
if t.name != ".":
|
|
self.assertTrue(t.name.startswith("./"), t.name)
|
|
finally:
|
|
tar.close()
|
|
finally:
|
|
os.chdir(cwd)
|
|
|
|
def test_open_nonwritable_fileobj(self):
|
|
for exctype in OSError, EOFError, RuntimeError:
|
|
class BadFile(io.BytesIO):
|
|
first = True
|
|
def write(self, data):
|
|
if self.first:
|
|
self.first = False
|
|
raise exctype
|
|
|
|
f = BadFile()
|
|
with self.assertRaises(exctype):
|
|
tar = tarfile.open(tmpname, self.mode, fileobj=f,
|
|
format=tarfile.PAX_FORMAT,
|
|
pax_headers={'non': 'empty'})
|
|
self.assertFalse(f.closed)
|
|
|
|
class GzipWriteTest(GzipTest, WriteTest):
|
|
pass
|
|
|
|
class Bz2WriteTest(Bz2Test, WriteTest):
|
|
pass
|
|
|
|
class LzmaWriteTest(LzmaTest, WriteTest):
|
|
pass
|
|
|
|
|
|
class StreamWriteTest(WriteTestBase, unittest.TestCase):
|
|
|
|
prefix = "w|"
|
|
decompressor = None
|
|
|
|
def test_stream_padding(self):
|
|
# Test for bug #1543303.
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
tar.close()
|
|
if self.decompressor:
|
|
dec = self.decompressor()
|
|
with open(tmpname, "rb") as fobj:
|
|
data = fobj.read()
|
|
data = dec.decompress(data)
|
|
self.assertFalse(dec.unused_data, "found trailing data")
|
|
else:
|
|
with self.open(tmpname) as fobj:
|
|
data = fobj.read()
|
|
self.assertEqual(data.count(b"\0"), tarfile.RECORDSIZE,
|
|
"incorrect zero padding")
|
|
|
|
@unittest.skipUnless(sys.platform != "win32" and hasattr(os, "umask"),
|
|
"Missing umask implementation")
|
|
def test_file_mode(self):
|
|
# Test for issue #8464: Create files with correct
|
|
# permissions.
|
|
if os.path.exists(tmpname):
|
|
os.remove(tmpname)
|
|
|
|
original_umask = os.umask(0o022)
|
|
try:
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
tar.close()
|
|
mode = os.stat(tmpname).st_mode & 0o777
|
|
self.assertEqual(mode, 0o644, "wrong file permissions")
|
|
finally:
|
|
os.umask(original_umask)
|
|
|
|
class GzipStreamWriteTest(GzipTest, StreamWriteTest):
|
|
pass
|
|
|
|
class Bz2StreamWriteTest(Bz2Test, StreamWriteTest):
|
|
decompressor = bz2.BZ2Decompressor if bz2 else None
|
|
|
|
class LzmaStreamWriteTest(LzmaTest, StreamWriteTest):
|
|
decompressor = lzma.LZMADecompressor if lzma else None
|
|
|
|
|
|
class GNUWriteTest(unittest.TestCase):
|
|
# This testcase checks for correct creation of GNU Longname
|
|
# and Longlink extended headers (cp. bug #812325).
|
|
|
|
def _length(self, s):
|
|
blocks = len(s) // 512 + 1
|
|
return blocks * 512
|
|
|
|
def _calc_size(self, name, link=None):
|
|
# Initial tar header
|
|
count = 512
|
|
|
|
if len(name) > tarfile.LENGTH_NAME:
|
|
# GNU longname extended header + longname
|
|
count += 512
|
|
count += self._length(name)
|
|
if link is not None and len(link) > tarfile.LENGTH_LINK:
|
|
# GNU longlink extended header + longlink
|
|
count += 512
|
|
count += self._length(link)
|
|
return count
|
|
|
|
def _test(self, name, link=None):
|
|
tarinfo = tarfile.TarInfo(name)
|
|
if link:
|
|
tarinfo.linkname = link
|
|
tarinfo.type = tarfile.LNKTYPE
|
|
|
|
tar = tarfile.open(tmpname, "w")
|
|
try:
|
|
tar.format = tarfile.GNU_FORMAT
|
|
tar.addfile(tarinfo)
|
|
|
|
v1 = self._calc_size(name, link)
|
|
v2 = tar.offset
|
|
self.assertEqual(v1, v2, "GNU longname/longlink creation failed")
|
|
finally:
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname)
|
|
try:
|
|
member = tar.next()
|
|
self.assertIsNotNone(member,
|
|
"unable to read longname member")
|
|
self.assertEqual(tarinfo.name, member.name,
|
|
"unable to read longname member")
|
|
self.assertEqual(tarinfo.linkname, member.linkname,
|
|
"unable to read longname member")
|
|
finally:
|
|
tar.close()
|
|
|
|
def test_longname_1023(self):
|
|
self._test(("longnam/" * 127) + "longnam")
|
|
|
|
def test_longname_1024(self):
|
|
self._test(("longnam/" * 127) + "longname")
|
|
|
|
def test_longname_1025(self):
|
|
self._test(("longnam/" * 127) + "longname_")
|
|
|
|
def test_longlink_1023(self):
|
|
self._test("name", ("longlnk/" * 127) + "longlnk")
|
|
|
|
def test_longlink_1024(self):
|
|
self._test("name", ("longlnk/" * 127) + "longlink")
|
|
|
|
def test_longlink_1025(self):
|
|
self._test("name", ("longlnk/" * 127) + "longlink_")
|
|
|
|
def test_longnamelink_1023(self):
|
|
self._test(("longnam/" * 127) + "longnam",
|
|
("longlnk/" * 127) + "longlnk")
|
|
|
|
def test_longnamelink_1024(self):
|
|
self._test(("longnam/" * 127) + "longname",
|
|
("longlnk/" * 127) + "longlink")
|
|
|
|
def test_longnamelink_1025(self):
|
|
self._test(("longnam/" * 127) + "longname_",
|
|
("longlnk/" * 127) + "longlink_")
|
|
|
|
|
|
@unittest.skipUnless(hasattr(os, "link"), "Missing hardlink implementation")
|
|
class HardlinkTest(unittest.TestCase):
|
|
# Test the creation of LNKTYPE (hardlink) members in an archive.
|
|
|
|
def setUp(self):
|
|
self.foo = os.path.join(TEMPDIR, "foo")
|
|
self.bar = os.path.join(TEMPDIR, "bar")
|
|
|
|
with open(self.foo, "wb") as fobj:
|
|
fobj.write(b"foo")
|
|
|
|
os.link(self.foo, self.bar)
|
|
|
|
self.tar = tarfile.open(tmpname, "w")
|
|
self.tar.add(self.foo)
|
|
|
|
def tearDown(self):
|
|
self.tar.close()
|
|
support.unlink(self.foo)
|
|
support.unlink(self.bar)
|
|
|
|
def test_add_twice(self):
|
|
# The same name will be added as a REGTYPE every
|
|
# time regardless of st_nlink.
|
|
tarinfo = self.tar.gettarinfo(self.foo)
|
|
self.assertEqual(tarinfo.type, tarfile.REGTYPE,
|
|
"add file as regular failed")
|
|
|
|
def test_add_hardlink(self):
|
|
tarinfo = self.tar.gettarinfo(self.bar)
|
|
self.assertEqual(tarinfo.type, tarfile.LNKTYPE,
|
|
"add file as hardlink failed")
|
|
|
|
def test_dereference_hardlink(self):
|
|
self.tar.dereference = True
|
|
tarinfo = self.tar.gettarinfo(self.bar)
|
|
self.assertEqual(tarinfo.type, tarfile.REGTYPE,
|
|
"dereferencing hardlink failed")
|
|
|
|
|
|
class PaxWriteTest(GNUWriteTest):
|
|
|
|
def _test(self, name, link=None):
|
|
# See GNUWriteTest.
|
|
tarinfo = tarfile.TarInfo(name)
|
|
if link:
|
|
tarinfo.linkname = link
|
|
tarinfo.type = tarfile.LNKTYPE
|
|
|
|
tar = tarfile.open(tmpname, "w", format=tarfile.PAX_FORMAT)
|
|
try:
|
|
tar.addfile(tarinfo)
|
|
finally:
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname)
|
|
try:
|
|
if link:
|
|
l = tar.getmembers()[0].linkname
|
|
self.assertEqual(link, l, "PAX longlink creation failed")
|
|
else:
|
|
n = tar.getmembers()[0].name
|
|
self.assertEqual(name, n, "PAX longname creation failed")
|
|
finally:
|
|
tar.close()
|
|
|
|
def test_pax_global_header(self):
|
|
pax_headers = {
|
|
"foo": "bar",
|
|
"uid": "0",
|
|
"mtime": "1.23",
|
|
"test": "\xe4\xf6\xfc",
|
|
"\xe4\xf6\xfc": "test"}
|
|
|
|
tar = tarfile.open(tmpname, "w", format=tarfile.PAX_FORMAT,
|
|
pax_headers=pax_headers)
|
|
try:
|
|
tar.addfile(tarfile.TarInfo("test"))
|
|
finally:
|
|
tar.close()
|
|
|
|
# Test if the global header was written correctly.
|
|
tar = tarfile.open(tmpname, encoding="iso8859-1")
|
|
try:
|
|
self.assertEqual(tar.pax_headers, pax_headers)
|
|
self.assertEqual(tar.getmembers()[0].pax_headers, pax_headers)
|
|
# Test if all the fields are strings.
|
|
for key, val in tar.pax_headers.items():
|
|
self.assertIsNot(type(key), bytes)
|
|
self.assertIsNot(type(val), bytes)
|
|
if key in tarfile.PAX_NUMBER_FIELDS:
|
|
try:
|
|
tarfile.PAX_NUMBER_FIELDS[key](val)
|
|
except (TypeError, ValueError):
|
|
self.fail("unable to convert pax header field")
|
|
finally:
|
|
tar.close()
|
|
|
|
def test_pax_extended_header(self):
|
|
# The fields from the pax header have priority over the
|
|
# TarInfo.
|
|
pax_headers = {"path": "foo", "uid": "123"}
|
|
|
|
tar = tarfile.open(tmpname, "w", format=tarfile.PAX_FORMAT,
|
|
encoding="iso8859-1")
|
|
try:
|
|
t = tarfile.TarInfo()
|
|
t.name = "\xe4\xf6\xfc" # non-ASCII
|
|
t.uid = 8**8 # too large
|
|
t.pax_headers = pax_headers
|
|
tar.addfile(t)
|
|
finally:
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname, encoding="iso8859-1")
|
|
try:
|
|
t = tar.getmembers()[0]
|
|
self.assertEqual(t.pax_headers, pax_headers)
|
|
self.assertEqual(t.name, "foo")
|
|
self.assertEqual(t.uid, 123)
|
|
finally:
|
|
tar.close()
|
|
|
|
|
|
class UstarUnicodeTest(unittest.TestCase):
|
|
|
|
format = tarfile.USTAR_FORMAT
|
|
|
|
def test_iso8859_1_filename(self):
|
|
self._test_unicode_filename("iso8859-1")
|
|
|
|
def test_utf7_filename(self):
|
|
self._test_unicode_filename("utf7")
|
|
|
|
def test_utf8_filename(self):
|
|
self._test_unicode_filename("utf-8")
|
|
|
|
def _test_unicode_filename(self, encoding):
|
|
tar = tarfile.open(tmpname, "w", format=self.format,
|
|
encoding=encoding, errors="strict")
|
|
try:
|
|
name = "\xe4\xf6\xfc"
|
|
tar.addfile(tarfile.TarInfo(name))
|
|
finally:
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname, encoding=encoding)
|
|
try:
|
|
self.assertEqual(tar.getmembers()[0].name, name)
|
|
finally:
|
|
tar.close()
|
|
|
|
def test_unicode_filename_error(self):
|
|
tar = tarfile.open(tmpname, "w", format=self.format,
|
|
encoding="ascii", errors="strict")
|
|
try:
|
|
tarinfo = tarfile.TarInfo()
|
|
|
|
tarinfo.name = "\xe4\xf6\xfc"
|
|
self.assertRaises(UnicodeError, tar.addfile, tarinfo)
|
|
|
|
tarinfo.name = "foo"
|
|
tarinfo.uname = "\xe4\xf6\xfc"
|
|
self.assertRaises(UnicodeError, tar.addfile, tarinfo)
|
|
finally:
|
|
tar.close()
|
|
|
|
def test_unicode_argument(self):
|
|
tar = tarfile.open(tarname, "r",
|
|
encoding="iso8859-1", errors="strict")
|
|
try:
|
|
for t in tar:
|
|
self.assertIs(type(t.name), str)
|
|
self.assertIs(type(t.linkname), str)
|
|
self.assertIs(type(t.uname), str)
|
|
self.assertIs(type(t.gname), str)
|
|
finally:
|
|
tar.close()
|
|
|
|
def test_uname_unicode(self):
|
|
t = tarfile.TarInfo("foo")
|
|
t.uname = "\xe4\xf6\xfc"
|
|
t.gname = "\xe4\xf6\xfc"
|
|
|
|
tar = tarfile.open(tmpname, mode="w", format=self.format,
|
|
encoding="iso8859-1")
|
|
try:
|
|
tar.addfile(t)
|
|
finally:
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname, encoding="iso8859-1")
|
|
try:
|
|
t = tar.getmember("foo")
|
|
self.assertEqual(t.uname, "\xe4\xf6\xfc")
|
|
self.assertEqual(t.gname, "\xe4\xf6\xfc")
|
|
|
|
if self.format != tarfile.PAX_FORMAT:
|
|
tar.close()
|
|
tar = tarfile.open(tmpname, encoding="ascii")
|
|
t = tar.getmember("foo")
|
|
self.assertEqual(t.uname, "\udce4\udcf6\udcfc")
|
|
self.assertEqual(t.gname, "\udce4\udcf6\udcfc")
|
|
finally:
|
|
tar.close()
|
|
|
|
|
|
class GNUUnicodeTest(UstarUnicodeTest):
|
|
|
|
format = tarfile.GNU_FORMAT
|
|
|
|
def test_bad_pax_header(self):
|
|
# Test for issue #8633. GNU tar <= 1.23 creates raw binary fields
|
|
# without a hdrcharset=BINARY header.
|
|
for encoding, name in (
|
|
("utf-8", "pax/bad-pax-\udce4\udcf6\udcfc"),
|
|
("iso8859-1", "pax/bad-pax-\xe4\xf6\xfc"),):
|
|
with tarfile.open(tarname, encoding=encoding,
|
|
errors="surrogateescape") as tar:
|
|
try:
|
|
t = tar.getmember(name)
|
|
except KeyError:
|
|
self.fail("unable to read bad GNU tar pax header")
|
|
|
|
|
|
class PAXUnicodeTest(UstarUnicodeTest):
|
|
|
|
format = tarfile.PAX_FORMAT
|
|
|
|
# PAX_FORMAT ignores encoding in write mode.
|
|
test_unicode_filename_error = None
|
|
|
|
def test_binary_header(self):
|
|
# Test a POSIX.1-2008 compatible header with a hdrcharset=BINARY field.
|
|
for encoding, name in (
|
|
("utf-8", "pax/hdrcharset-\udce4\udcf6\udcfc"),
|
|
("iso8859-1", "pax/hdrcharset-\xe4\xf6\xfc"),):
|
|
with tarfile.open(tarname, encoding=encoding,
|
|
errors="surrogateescape") as tar:
|
|
try:
|
|
t = tar.getmember(name)
|
|
except KeyError:
|
|
self.fail("unable to read POSIX.1-2008 binary header")
|
|
|
|
|
|
class AppendTestBase:
|
|
# Test append mode (cp. patch #1652681).
|
|
|
|
def setUp(self):
|
|
self.tarname = tmpname
|
|
if os.path.exists(self.tarname):
|
|
os.remove(self.tarname)
|
|
|
|
def _create_testtar(self, mode="w:"):
|
|
with tarfile.open(tarname, encoding="iso8859-1") as src:
|
|
t = src.getmember("ustar/regtype")
|
|
t.name = "foo"
|
|
with src.extractfile(t) as f:
|
|
with tarfile.open(self.tarname, mode) as tar:
|
|
tar.addfile(t, f)
|
|
|
|
def test_append_compressed(self):
|
|
self._create_testtar("w:" + self.suffix)
|
|
self.assertRaises(tarfile.ReadError, tarfile.open, tmpname, "a")
|
|
|
|
class AppendTest(AppendTestBase, unittest.TestCase):
|
|
test_append_compressed = None
|
|
|
|
def _add_testfile(self, fileobj=None):
|
|
with tarfile.open(self.tarname, "a", fileobj=fileobj) as tar:
|
|
tar.addfile(tarfile.TarInfo("bar"))
|
|
|
|
def _test(self, names=["bar"], fileobj=None):
|
|
with tarfile.open(self.tarname, fileobj=fileobj) as tar:
|
|
self.assertEqual(tar.getnames(), names)
|
|
|
|
def test_non_existing(self):
|
|
self._add_testfile()
|
|
self._test()
|
|
|
|
def test_empty(self):
|
|
tarfile.open(self.tarname, "w:").close()
|
|
self._add_testfile()
|
|
self._test()
|
|
|
|
def test_empty_fileobj(self):
|
|
fobj = io.BytesIO(b"\0" * 1024)
|
|
self._add_testfile(fobj)
|
|
fobj.seek(0)
|
|
self._test(fileobj=fobj)
|
|
|
|
def test_fileobj(self):
|
|
self._create_testtar()
|
|
with open(self.tarname, "rb") as fobj:
|
|
data = fobj.read()
|
|
fobj = io.BytesIO(data)
|
|
self._add_testfile(fobj)
|
|
fobj.seek(0)
|
|
self._test(names=["foo", "bar"], fileobj=fobj)
|
|
|
|
def test_existing(self):
|
|
self._create_testtar()
|
|
self._add_testfile()
|
|
self._test(names=["foo", "bar"])
|
|
|
|
# Append mode is supposed to fail if the tarfile to append to
|
|
# does not end with a zero block.
|
|
def _test_error(self, data):
|
|
with open(self.tarname, "wb") as fobj:
|
|
fobj.write(data)
|
|
self.assertRaises(tarfile.ReadError, self._add_testfile)
|
|
|
|
def test_null(self):
|
|
self._test_error(b"")
|
|
|
|
def test_incomplete(self):
|
|
self._test_error(b"\0" * 13)
|
|
|
|
def test_premature_eof(self):
|
|
data = tarfile.TarInfo("foo").tobuf()
|
|
self._test_error(data)
|
|
|
|
def test_trailing_garbage(self):
|
|
data = tarfile.TarInfo("foo").tobuf()
|
|
self._test_error(data + b"\0" * 13)
|
|
|
|
def test_invalid(self):
|
|
self._test_error(b"a" * 512)
|
|
|
|
class GzipAppendTest(GzipTest, AppendTestBase, unittest.TestCase):
|
|
pass
|
|
|
|
class Bz2AppendTest(Bz2Test, AppendTestBase, unittest.TestCase):
|
|
pass
|
|
|
|
class LzmaAppendTest(LzmaTest, AppendTestBase, unittest.TestCase):
|
|
pass
|
|
|
|
|
|
class LimitsTest(unittest.TestCase):
|
|
|
|
def test_ustar_limits(self):
|
|
# 100 char name
|
|
tarinfo = tarfile.TarInfo("0123456789" * 10)
|
|
tarinfo.tobuf(tarfile.USTAR_FORMAT)
|
|
|
|
# 101 char name that cannot be stored
|
|
tarinfo = tarfile.TarInfo("0123456789" * 10 + "0")
|
|
self.assertRaises(ValueError, tarinfo.tobuf, tarfile.USTAR_FORMAT)
|
|
|
|
# 256 char name with a slash at pos 156
|
|
tarinfo = tarfile.TarInfo("123/" * 62 + "longname")
|
|
tarinfo.tobuf(tarfile.USTAR_FORMAT)
|
|
|
|
# 256 char name that cannot be stored
|
|
tarinfo = tarfile.TarInfo("1234567/" * 31 + "longname")
|
|
self.assertRaises(ValueError, tarinfo.tobuf, tarfile.USTAR_FORMAT)
|
|
|
|
# 512 char name
|
|
tarinfo = tarfile.TarInfo("123/" * 126 + "longname")
|
|
self.assertRaises(ValueError, tarinfo.tobuf, tarfile.USTAR_FORMAT)
|
|
|
|
# 512 char linkname
|
|
tarinfo = tarfile.TarInfo("longlink")
|
|
tarinfo.linkname = "123/" * 126 + "longname"
|
|
self.assertRaises(ValueError, tarinfo.tobuf, tarfile.USTAR_FORMAT)
|
|
|
|
# uid > 8 digits
|
|
tarinfo = tarfile.TarInfo("name")
|
|
tarinfo.uid = 0o10000000
|
|
self.assertRaises(ValueError, tarinfo.tobuf, tarfile.USTAR_FORMAT)
|
|
|
|
def test_gnu_limits(self):
|
|
tarinfo = tarfile.TarInfo("123/" * 126 + "longname")
|
|
tarinfo.tobuf(tarfile.GNU_FORMAT)
|
|
|
|
tarinfo = tarfile.TarInfo("longlink")
|
|
tarinfo.linkname = "123/" * 126 + "longname"
|
|
tarinfo.tobuf(tarfile.GNU_FORMAT)
|
|
|
|
# uid >= 256 ** 7
|
|
tarinfo = tarfile.TarInfo("name")
|
|
tarinfo.uid = 0o4000000000000000000
|
|
self.assertRaises(ValueError, tarinfo.tobuf, tarfile.GNU_FORMAT)
|
|
|
|
def test_pax_limits(self):
|
|
tarinfo = tarfile.TarInfo("123/" * 126 + "longname")
|
|
tarinfo.tobuf(tarfile.PAX_FORMAT)
|
|
|
|
tarinfo = tarfile.TarInfo("longlink")
|
|
tarinfo.linkname = "123/" * 126 + "longname"
|
|
tarinfo.tobuf(tarfile.PAX_FORMAT)
|
|
|
|
tarinfo = tarfile.TarInfo("name")
|
|
tarinfo.uid = 0o4000000000000000000
|
|
tarinfo.tobuf(tarfile.PAX_FORMAT)
|
|
|
|
|
|
class MiscTest(unittest.TestCase):
|
|
|
|
def test_char_fields(self):
|
|
self.assertEqual(tarfile.stn("foo", 8, "ascii", "strict"),
|
|
b"foo\0\0\0\0\0")
|
|
self.assertEqual(tarfile.stn("foobar", 3, "ascii", "strict"),
|
|
b"foo")
|
|
self.assertEqual(tarfile.nts(b"foo\0\0\0\0\0", "ascii", "strict"),
|
|
"foo")
|
|
self.assertEqual(tarfile.nts(b"foo\0bar\0", "ascii", "strict"),
|
|
"foo")
|
|
|
|
def test_read_number_fields(self):
|
|
# Issue 13158: Test if GNU tar specific base-256 number fields
|
|
# are decoded correctly.
|
|
self.assertEqual(tarfile.nti(b"0000001\x00"), 1)
|
|
self.assertEqual(tarfile.nti(b"7777777\x00"), 0o7777777)
|
|
self.assertEqual(tarfile.nti(b"\x80\x00\x00\x00\x00\x20\x00\x00"),
|
|
0o10000000)
|
|
self.assertEqual(tarfile.nti(b"\x80\x00\x00\x00\xff\xff\xff\xff"),
|
|
0xffffffff)
|
|
self.assertEqual(tarfile.nti(b"\xff\xff\xff\xff\xff\xff\xff\xff"),
|
|
-1)
|
|
self.assertEqual(tarfile.nti(b"\xff\xff\xff\xff\xff\xff\xff\x9c"),
|
|
-100)
|
|
self.assertEqual(tarfile.nti(b"\xff\x00\x00\x00\x00\x00\x00\x00"),
|
|
-0x100000000000000)
|
|
|
|
def test_write_number_fields(self):
|
|
self.assertEqual(tarfile.itn(1), b"0000001\x00")
|
|
self.assertEqual(tarfile.itn(0o7777777), b"7777777\x00")
|
|
self.assertEqual(tarfile.itn(0o10000000),
|
|
b"\x80\x00\x00\x00\x00\x20\x00\x00")
|
|
self.assertEqual(tarfile.itn(0xffffffff),
|
|
b"\x80\x00\x00\x00\xff\xff\xff\xff")
|
|
self.assertEqual(tarfile.itn(-1),
|
|
b"\xff\xff\xff\xff\xff\xff\xff\xff")
|
|
self.assertEqual(tarfile.itn(-100),
|
|
b"\xff\xff\xff\xff\xff\xff\xff\x9c")
|
|
self.assertEqual(tarfile.itn(-0x100000000000000),
|
|
b"\xff\x00\x00\x00\x00\x00\x00\x00")
|
|
|
|
def test_number_field_limits(self):
|
|
with self.assertRaises(ValueError):
|
|
tarfile.itn(-1, 8, tarfile.USTAR_FORMAT)
|
|
with self.assertRaises(ValueError):
|
|
tarfile.itn(0o10000000, 8, tarfile.USTAR_FORMAT)
|
|
with self.assertRaises(ValueError):
|
|
tarfile.itn(-0x10000000001, 6, tarfile.GNU_FORMAT)
|
|
with self.assertRaises(ValueError):
|
|
tarfile.itn(0x10000000000, 6, tarfile.GNU_FORMAT)
|
|
|
|
|
|
class CommandLineTest(unittest.TestCase):
|
|
|
|
def tarfilecmd(self, *args, **kwargs):
|
|
rc, out, err = script_helper.assert_python_ok('-m', 'tarfile', *args,
|
|
**kwargs)
|
|
return out.replace(os.linesep.encode(), b'\n')
|
|
|
|
def tarfilecmd_failure(self, *args):
|
|
return script_helper.assert_python_failure('-m', 'tarfile', *args)
|
|
|
|
def make_simple_tarfile(self, tar_name):
|
|
files = [support.findfile('tokenize_tests.txt'),
|
|
support.findfile('tokenize_tests-no-coding-cookie-'
|
|
'and-utf8-bom-sig-only.txt')]
|
|
self.addCleanup(support.unlink, tar_name)
|
|
with tarfile.open(tar_name, 'w') as tf:
|
|
for tardata in files:
|
|
tf.add(tardata, arcname=os.path.basename(tardata))
|
|
|
|
def test_test_command(self):
|
|
for tar_name in testtarnames:
|
|
for opt in '-t', '--test':
|
|
out = self.tarfilecmd(opt, tar_name)
|
|
self.assertEqual(out, b'')
|
|
|
|
def test_test_command_verbose(self):
|
|
for tar_name in testtarnames:
|
|
for opt in '-v', '--verbose':
|
|
out = self.tarfilecmd(opt, '-t', tar_name)
|
|
self.assertIn(b'is a tar archive.\n', out)
|
|
|
|
def test_test_command_invalid_file(self):
|
|
zipname = support.findfile('zipdir.zip')
|
|
rc, out, err = self.tarfilecmd_failure('-t', zipname)
|
|
self.assertIn(b' is not a tar archive.', err)
|
|
self.assertEqual(out, b'')
|
|
self.assertEqual(rc, 1)
|
|
|
|
for tar_name in testtarnames:
|
|
with self.subTest(tar_name=tar_name):
|
|
with open(tar_name, 'rb') as f:
|
|
data = f.read()
|
|
try:
|
|
with open(tmpname, 'wb') as f:
|
|
f.write(data[:511])
|
|
rc, out, err = self.tarfilecmd_failure('-t', tmpname)
|
|
self.assertEqual(out, b'')
|
|
self.assertEqual(rc, 1)
|
|
finally:
|
|
support.unlink(tmpname)
|
|
|
|
def test_list_command(self):
|
|
for tar_name in testtarnames:
|
|
with support.captured_stdout() as t:
|
|
with tarfile.open(tar_name, 'r') as tf:
|
|
tf.list(verbose=False)
|
|
expected = t.getvalue().encode('ascii', 'backslashreplace')
|
|
for opt in '-l', '--list':
|
|
out = self.tarfilecmd(opt, tar_name,
|
|
PYTHONIOENCODING='ascii')
|
|
self.assertEqual(out, expected)
|
|
|
|
def test_list_command_verbose(self):
|
|
for tar_name in testtarnames:
|
|
with support.captured_stdout() as t:
|
|
with tarfile.open(tar_name, 'r') as tf:
|
|
tf.list(verbose=True)
|
|
expected = t.getvalue().encode('ascii', 'backslashreplace')
|
|
for opt in '-v', '--verbose':
|
|
out = self.tarfilecmd(opt, '-l', tar_name,
|
|
PYTHONIOENCODING='ascii')
|
|
self.assertEqual(out, expected)
|
|
|
|
def test_list_command_invalid_file(self):
|
|
zipname = support.findfile('zipdir.zip')
|
|
rc, out, err = self.tarfilecmd_failure('-l', zipname)
|
|
self.assertIn(b' is not a tar archive.', err)
|
|
self.assertEqual(out, b'')
|
|
self.assertEqual(rc, 1)
|
|
|
|
def test_create_command(self):
|
|
files = [support.findfile('tokenize_tests.txt'),
|
|
support.findfile('tokenize_tests-no-coding-cookie-'
|
|
'and-utf8-bom-sig-only.txt')]
|
|
for opt in '-c', '--create':
|
|
try:
|
|
out = self.tarfilecmd(opt, tmpname, *files)
|
|
self.assertEqual(out, b'')
|
|
with tarfile.open(tmpname) as tar:
|
|
tar.getmembers()
|
|
finally:
|
|
support.unlink(tmpname)
|
|
|
|
def test_create_command_verbose(self):
|
|
files = [support.findfile('tokenize_tests.txt'),
|
|
support.findfile('tokenize_tests-no-coding-cookie-'
|
|
'and-utf8-bom-sig-only.txt')]
|
|
for opt in '-v', '--verbose':
|
|
try:
|
|
out = self.tarfilecmd(opt, '-c', tmpname, *files)
|
|
self.assertIn(b' file created.', out)
|
|
with tarfile.open(tmpname) as tar:
|
|
tar.getmembers()
|
|
finally:
|
|
support.unlink(tmpname)
|
|
|
|
def test_create_command_dotless_filename(self):
|
|
files = [support.findfile('tokenize_tests.txt')]
|
|
try:
|
|
out = self.tarfilecmd('-c', dotlessname, *files)
|
|
self.assertEqual(out, b'')
|
|
with tarfile.open(dotlessname) as tar:
|
|
tar.getmembers()
|
|
finally:
|
|
support.unlink(dotlessname)
|
|
|
|
def test_create_command_dot_started_filename(self):
|
|
tar_name = os.path.join(TEMPDIR, ".testtar")
|
|
files = [support.findfile('tokenize_tests.txt')]
|
|
try:
|
|
out = self.tarfilecmd('-c', tar_name, *files)
|
|
self.assertEqual(out, b'')
|
|
with tarfile.open(tar_name) as tar:
|
|
tar.getmembers()
|
|
finally:
|
|
support.unlink(tar_name)
|
|
|
|
def test_extract_command(self):
|
|
self.make_simple_tarfile(tmpname)
|
|
for opt in '-e', '--extract':
|
|
try:
|
|
with support.temp_cwd(tarextdir):
|
|
out = self.tarfilecmd(opt, tmpname)
|
|
self.assertEqual(out, b'')
|
|
finally:
|
|
support.rmtree(tarextdir)
|
|
|
|
def test_extract_command_verbose(self):
|
|
self.make_simple_tarfile(tmpname)
|
|
for opt in '-v', '--verbose':
|
|
try:
|
|
with support.temp_cwd(tarextdir):
|
|
out = self.tarfilecmd(opt, '-e', tmpname)
|
|
self.assertIn(b' file is extracted.', out)
|
|
finally:
|
|
support.rmtree(tarextdir)
|
|
|
|
def test_extract_command_different_directory(self):
|
|
self.make_simple_tarfile(tmpname)
|
|
try:
|
|
with support.temp_cwd(tarextdir):
|
|
out = self.tarfilecmd('-e', tmpname, 'spamdir')
|
|
self.assertEqual(out, b'')
|
|
finally:
|
|
support.rmtree(tarextdir)
|
|
|
|
def test_extract_command_invalid_file(self):
|
|
zipname = support.findfile('zipdir.zip')
|
|
with support.temp_cwd(tarextdir):
|
|
rc, out, err = self.tarfilecmd_failure('-e', zipname)
|
|
self.assertIn(b' is not a tar archive.', err)
|
|
self.assertEqual(out, b'')
|
|
self.assertEqual(rc, 1)
|
|
|
|
|
|
class ContextManagerTest(unittest.TestCase):
|
|
|
|
def test_basic(self):
|
|
with tarfile.open(tarname) as tar:
|
|
self.assertFalse(tar.closed, "closed inside runtime context")
|
|
self.assertTrue(tar.closed, "context manager failed")
|
|
|
|
def test_closed(self):
|
|
# The __enter__() method is supposed to raise OSError
|
|
# if the TarFile object is already closed.
|
|
tar = tarfile.open(tarname)
|
|
tar.close()
|
|
with self.assertRaises(OSError):
|
|
with tar:
|
|
pass
|
|
|
|
def test_exception(self):
|
|
# Test if the OSError exception is passed through properly.
|
|
with self.assertRaises(Exception) as exc:
|
|
with tarfile.open(tarname) as tar:
|
|
raise OSError
|
|
self.assertIsInstance(exc.exception, OSError,
|
|
"wrong exception raised in context manager")
|
|
self.assertTrue(tar.closed, "context manager failed")
|
|
|
|
def test_no_eof(self):
|
|
# __exit__() must not write end-of-archive blocks if an
|
|
# exception was raised.
|
|
try:
|
|
with tarfile.open(tmpname, "w") as tar:
|
|
raise Exception
|
|
except:
|
|
pass
|
|
self.assertEqual(os.path.getsize(tmpname), 0,
|
|
"context manager wrote an end-of-archive block")
|
|
self.assertTrue(tar.closed, "context manager failed")
|
|
|
|
def test_eof(self):
|
|
# __exit__() must write end-of-archive blocks, i.e. call
|
|
# TarFile.close() if there was no error.
|
|
with tarfile.open(tmpname, "w"):
|
|
pass
|
|
self.assertNotEqual(os.path.getsize(tmpname), 0,
|
|
"context manager wrote no end-of-archive block")
|
|
|
|
def test_fileobj(self):
|
|
# Test that __exit__() did not close the external file
|
|
# object.
|
|
with open(tmpname, "wb") as fobj:
|
|
try:
|
|
with tarfile.open(fileobj=fobj, mode="w") as tar:
|
|
raise Exception
|
|
except:
|
|
pass
|
|
self.assertFalse(fobj.closed, "external file object was closed")
|
|
self.assertTrue(tar.closed, "context manager failed")
|
|
|
|
|
|
@unittest.skipIf(hasattr(os, "link"), "requires os.link to be missing")
|
|
class LinkEmulationTest(ReadTest, unittest.TestCase):
|
|
|
|
# Test for issue #8741 regression. On platforms that do not support
|
|
# symbolic or hard links tarfile tries to extract these types of members
|
|
# as the regular files they point to.
|
|
def _test_link_extraction(self, name):
|
|
self.tar.extract(name, TEMPDIR)
|
|
with open(os.path.join(TEMPDIR, name), "rb") as f:
|
|
data = f.read()
|
|
self.assertEqual(md5sum(data), md5_regtype)
|
|
|
|
# See issues #1578269, #8879, and #17689 for some history on these skips
|
|
@unittest.skipIf(hasattr(os.path, "islink"),
|
|
"Skip emulation - has os.path.islink but not os.link")
|
|
def test_hardlink_extraction1(self):
|
|
self._test_link_extraction("ustar/lnktype")
|
|
|
|
@unittest.skipIf(hasattr(os.path, "islink"),
|
|
"Skip emulation - has os.path.islink but not os.link")
|
|
def test_hardlink_extraction2(self):
|
|
self._test_link_extraction("./ustar/linktest2/lnktype")
|
|
|
|
@unittest.skipIf(hasattr(os, "symlink"),
|
|
"Skip emulation if symlink exists")
|
|
def test_symlink_extraction1(self):
|
|
self._test_link_extraction("ustar/symtype")
|
|
|
|
@unittest.skipIf(hasattr(os, "symlink"),
|
|
"Skip emulation if symlink exists")
|
|
def test_symlink_extraction2(self):
|
|
self._test_link_extraction("./ustar/linktest2/symtype")
|
|
|
|
|
|
class Bz2PartialReadTest(Bz2Test, unittest.TestCase):
|
|
# Issue5068: The _BZ2Proxy.read() method loops forever
|
|
# on an empty or partial bzipped file.
|
|
|
|
def _test_partial_input(self, mode):
|
|
class MyBytesIO(io.BytesIO):
|
|
hit_eof = False
|
|
def read(self, n):
|
|
if self.hit_eof:
|
|
raise AssertionError("infinite loop detected in "
|
|
"tarfile.open()")
|
|
self.hit_eof = self.tell() == len(self.getvalue())
|
|
return super(MyBytesIO, self).read(n)
|
|
def seek(self, *args):
|
|
self.hit_eof = False
|
|
return super(MyBytesIO, self).seek(*args)
|
|
|
|
data = bz2.compress(tarfile.TarInfo("foo").tobuf())
|
|
for x in range(len(data) + 1):
|
|
try:
|
|
tarfile.open(fileobj=MyBytesIO(data[:x]), mode=mode)
|
|
except tarfile.ReadError:
|
|
pass # we have no interest in ReadErrors
|
|
|
|
def test_partial_input(self):
|
|
self._test_partial_input("r")
|
|
|
|
def test_partial_input_bz2(self):
|
|
self._test_partial_input("r:bz2")
|
|
|
|
|
|
def setUpModule():
|
|
support.unlink(TEMPDIR)
|
|
os.makedirs(TEMPDIR)
|
|
|
|
global testtarnames
|
|
testtarnames = [tarname]
|
|
with open(tarname, "rb") as fobj:
|
|
data = fobj.read()
|
|
|
|
# Create compressed tarfiles.
|
|
for c in GzipTest, Bz2Test, LzmaTest:
|
|
if c.open:
|
|
support.unlink(c.tarname)
|
|
testtarnames.append(c.tarname)
|
|
with c.open(c.tarname, "wb") as tar:
|
|
tar.write(data)
|
|
|
|
def tearDownModule():
|
|
if os.path.exists(TEMPDIR):
|
|
shutil.rmtree(TEMPDIR)
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|