mirror of https://github.com/python/cpython
1403 lines
46 KiB
Python
1403 lines
46 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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import tempfile
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import io
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from hashlib import md5
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import errno
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import unittest
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import tarfile
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from test import support
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# Check for our compression modules.
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try:
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import gzip
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gzip.GzipFile
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except (ImportError, AttributeError):
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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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def md5sum(data):
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return md5(data).hexdigest()
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TEMPDIR = os.path.abspath(support.TESTFN)
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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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tmpname = os.path.join(TEMPDIR, "tmp.tar")
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md5_regtype = "65f477c818ad9e15f7feab0c6d37742f"
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md5_sparse = "a54fbc4ca4f4399a90e1b27164012fc6"
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class ReadTest(unittest.TestCase):
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tarname = tarname
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mode = "r:"
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def setUp(self):
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self.tar = tarfile.open(self.tarname, mode=self.mode, encoding="iso8859-1")
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def tearDown(self):
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self.tar.close()
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class UstarReadTest(ReadTest):
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def test_fileobj_regular_file(self):
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tarinfo = self.tar.getmember("ustar/regtype")
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fobj = self.tar.extractfile(tarinfo)
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data = fobj.read()
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self.assertTrue((len(data), md5sum(data)) == (tarinfo.size, 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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fobj1 = open(os.path.join(TEMPDIR, "ustar/regtype"), "r")
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fobj2 = io.TextIOWrapper(self.tar.extractfile(tarinfo))
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lines1 = fobj1.readlines()
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lines2 = fobj2.readlines()
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self.assertTrue(lines1 == lines2,
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"fileobj.readlines() failed")
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self.assertTrue(len(lines2) == 114,
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"fileobj.readlines() failed")
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self.assertTrue(lines2[83] == \
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"I will gladly admit that Python is not the fastest 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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fobj1 = open(os.path.join(TEMPDIR, "ustar/regtype"), "rU")
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fobj2 = self.tar.extractfile(tarinfo)
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lines1 = fobj1.readlines()
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lines2 = list(io.TextIOWrapper(fobj2))
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self.assertTrue(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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fobj = open(os.path.join(TEMPDIR, "ustar/regtype"), "rb")
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data = fobj.read()
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fobj.close()
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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.assertTrue(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.assertTrue(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.assertTrue(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.assertTrue(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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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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tarfile.open(tmpname, self.mode.replace("r", "w")).close()
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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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self.assertListEqual(tar.getmembers(), [])
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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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open(tmpname, "wb").close()
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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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if self.mode.endswith(":gz"):
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_open = gzip.GzipFile
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elif self.mode.endswith(":bz2"):
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_open = bz2.BZ2File
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else:
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_open = open
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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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fobj = _open(tmpname, "wb")
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fobj.write(char * 1024)
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fobj.write(tarfile.TarInfo("foo").tobuf())
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fobj.close()
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tar = tarfile.open(tmpname, mode="r", ignore_zeros=True)
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self.assertListEqual(tar.getnames(), ["foo"],
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"ignore_zeros=True should have skipped the %r-blocks" % char)
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tar.close()
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class MiscReadTest(CommonReadTest):
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def test_no_name_argument(self):
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fobj = open(self.tarname, "rb")
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tar = tarfile.open(fileobj=fobj, mode=self.mode)
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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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data = open(self.tarname, "rb").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.assertEqual(tar.name, None)
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def test_empty_name_attribute(self):
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data = open(self.tarname, "rb").read()
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fobj = io.BytesIO(data)
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fobj.name = ""
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tar = tarfile.open(fileobj=fobj, mode=self.mode)
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self.assertEqual(tar.name, None)
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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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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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data = tar.extractfile(t).read()
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tar.close()
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# Open the testtar and seek to the offset of the second member.
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if self.mode.endswith(":gz"):
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_open = gzip.GzipFile
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elif self.mode.endswith(":bz2"):
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_open = bz2.BZ2File
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else:
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_open = open
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fobj = _open(self.tarname, "rb")
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fobj.seek(offset)
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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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def test_fail_comp(self):
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# For Gzip and Bz2 Tests: fail with a ReadError on an uncompressed file.
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if self.mode == "r:":
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return
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self.assertRaises(tarfile.ReadError, tarfile.open, tarname, self.mode)
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fobj = open(tarname, "rb")
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self.assertRaises(tarfile.ReadError, tarfile.open, fileobj=fobj, mode=self.mode)
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def test_v7_dirtype(self):
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# Test old style dirtype member (bug #1336623):
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# Old V7 tars create directory members using an AREGTYPE
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# 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.assertTrue(tarinfo.type == tarfile.DIRTYPE,
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"v7 dirtype failed")
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def test_xstar_type(self):
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# The xstar format stores extra atime and ctime fields inside the
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# space reserved for the prefix field. The prefix field must be
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# ignored in this case, otherwise it will mess up the name.
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try:
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self.tar.getmember("misc/regtype-xstar")
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except KeyError:
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self.fail("failed to find misc/regtype-xstar (mangled prefix?)")
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def test_check_members(self):
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for tarinfo in self.tar:
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self.assertTrue(int(tarinfo.mtime) == 0o7606136617,
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"wrong mtime for %s" % tarinfo.name)
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if not tarinfo.name.startswith("ustar/"):
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continue
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self.assertTrue(tarinfo.uname == "tarfile",
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"wrong uname for %s" % tarinfo.name)
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def test_find_members(self):
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self.assertTrue(self.tar.getmembers()[-1].name == "misc/eof",
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"could not find all members")
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def test_extract_hardlink(self):
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# Test hardlink extraction (e.g. bug #857297).
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tar = tarfile.open(tarname, errorlevel=1, encoding="iso8859-1")
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tar.extract("ustar/regtype", TEMPDIR)
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try:
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tar.extract("ustar/lnktype", TEMPDIR)
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except EnvironmentError as e:
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if e.errno == errno.ENOENT:
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self.fail("hardlink not extracted properly")
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data = open(os.path.join(TEMPDIR, "ustar/lnktype"), "rb").read()
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self.assertEqual(md5sum(data), md5_regtype)
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try:
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tar.extract("ustar/symtype", TEMPDIR)
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except EnvironmentError as e:
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if e.errno == errno.ENOENT:
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self.fail("symlink not extracted properly")
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data = open(os.path.join(TEMPDIR, "ustar/symtype"), "rb").read()
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self.assertEqual(md5sum(data), md5_regtype)
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def test_extractall(self):
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# Test if extractall() correctly restores directory permissions
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# and times (see issue1735).
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tar = tarfile.open(tarname, encoding="iso8859-1")
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directories = [t for t in tar if t.isdir()]
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tar.extractall(TEMPDIR, directories)
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for tarinfo in directories:
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path = os.path.join(TEMPDIR, tarinfo.name)
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if sys.platform != "win32":
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# Win32 has no support for fine grained permissions.
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self.assertEqual(tarinfo.mode & 0o777, os.stat(path).st_mode & 0o777)
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self.assertEqual(tarinfo.mtime, os.path.getmtime(path))
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tar.close()
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def test_init_close_fobj(self):
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# Issue #7341: Close the internal file object in the TarFile
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# constructor in case of an error. For the test we rely on
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# the fact that opening an empty file raises a ReadError.
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empty = os.path.join(TEMPDIR, "empty")
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open(empty, "wb").write(b"")
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try:
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tar = object.__new__(tarfile.TarFile)
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try:
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tar.__init__(empty)
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except tarfile.ReadError:
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self.assertTrue(tar.fileobj.closed)
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else:
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self.fail("ReadError not raised")
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finally:
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os.remove(empty)
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class StreamReadTest(CommonReadTest):
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mode="r|"
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def test_fileobj_regular_file(self):
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tarinfo = self.tar.next() # get "regtype" (can't use getmember)
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fobj = self.tar.extractfile(tarinfo)
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data = fobj.read()
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self.assertTrue((len(data), md5sum(data)) == (tarinfo.size, md5_regtype),
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"regular file extraction failed")
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def test_provoke_stream_error(self):
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tarinfos = self.tar.getmembers()
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f = self.tar.extractfile(tarinfos[0]) # read the first member
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self.assertRaises(tarfile.StreamError, f.read)
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def test_compare_members(self):
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tar1 = tarfile.open(tarname, encoding="iso8859-1")
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tar2 = self.tar
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while True:
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t1 = tar1.next()
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t2 = tar2.next()
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if t1 is None:
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break
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self.assertTrue(t2 is not None, "stream.next() failed.")
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if t2.islnk() or t2.issym():
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self.assertRaises(tarfile.StreamError, tar2.extractfile, t2)
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continue
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v1 = tar1.extractfile(t1)
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v2 = tar2.extractfile(t2)
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if v1 is None:
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continue
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self.assertTrue(v2 is not None, "stream.extractfile() failed")
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self.assertEqual(v1.read(), v2.read(), "stream extraction failed")
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tar1.close()
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class DetectReadTest(unittest.TestCase):
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def _testfunc_file(self, name, mode):
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try:
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tarfile.open(name, mode)
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except tarfile.ReadError as e:
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self.fail()
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def _testfunc_fileobj(self, name, mode):
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try:
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tarfile.open(name, mode, fileobj=open(name, "rb"))
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except tarfile.ReadError as e:
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self.fail()
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def _test_modes(self, testfunc):
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testfunc(tarname, "r")
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testfunc(tarname, "r:")
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testfunc(tarname, "r:*")
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testfunc(tarname, "r|")
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testfunc(tarname, "r|*")
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if gzip:
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self.assertRaises(tarfile.ReadError, tarfile.open, tarname, mode="r:gz")
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self.assertRaises(tarfile.ReadError, tarfile.open, tarname, mode="r|gz")
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self.assertRaises(tarfile.ReadError, tarfile.open, gzipname, mode="r:")
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self.assertRaises(tarfile.ReadError, tarfile.open, gzipname, mode="r|")
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testfunc(gzipname, "r")
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testfunc(gzipname, "r:*")
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testfunc(gzipname, "r:gz")
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testfunc(gzipname, "r|*")
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testfunc(gzipname, "r|gz")
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if bz2:
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self.assertRaises(tarfile.ReadError, tarfile.open, tarname, mode="r:bz2")
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self.assertRaises(tarfile.ReadError, tarfile.open, tarname, mode="r|bz2")
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self.assertRaises(tarfile.ReadError, tarfile.open, bz2name, mode="r:")
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self.assertRaises(tarfile.ReadError, tarfile.open, bz2name, mode="r|")
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testfunc(bz2name, "r")
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testfunc(bz2name, "r:*")
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testfunc(bz2name, "r:bz2")
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testfunc(bz2name, "r|*")
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testfunc(bz2name, "r|bz2")
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def test_detect_file(self):
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self._test_modes(self._testfunc_file)
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def test_detect_fileobj(self):
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self._test_modes(self._testfunc_fileobj)
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class MemberReadTest(ReadTest):
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def _test_member(self, tarinfo, chksum=None, **kwargs):
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if chksum is not None:
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self.assertTrue(md5sum(self.tar.extractfile(tarinfo).read()) == chksum,
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"wrong md5sum for %s" % tarinfo.name)
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kwargs["mtime"] = 0o7606136617
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kwargs["uid"] = 1000
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kwargs["gid"] = 100
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if "old-v7" not in tarinfo.name:
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# V7 tar can't handle alphabetic owners.
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kwargs["uname"] = "tarfile"
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kwargs["gname"] = "tarfile"
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for k, v in kwargs.items():
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self.assertTrue(getattr(tarinfo, k) == v,
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"wrong value in %s field of %s" % (k, tarinfo.name))
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def test_find_regtype(self):
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tarinfo = self.tar.getmember("ustar/regtype")
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self._test_member(tarinfo, size=7011, chksum=md5_regtype)
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def test_find_conttype(self):
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tarinfo = self.tar.getmember("ustar/conttype")
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self._test_member(tarinfo, size=7011, chksum=md5_regtype)
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def test_find_dirtype(self):
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tarinfo = self.tar.getmember("ustar/dirtype")
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self._test_member(tarinfo, size=0)
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def test_find_dirtype_with_size(self):
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tarinfo = self.tar.getmember("ustar/dirtype-with-size")
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self._test_member(tarinfo, size=255)
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def test_find_lnktype(self):
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tarinfo = self.tar.getmember("ustar/lnktype")
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self._test_member(tarinfo, size=0, linkname="ustar/regtype")
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def test_find_symtype(self):
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tarinfo = self.tar.getmember("ustar/symtype")
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self._test_member(tarinfo, size=0, linkname="regtype")
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def test_find_blktype(self):
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tarinfo = self.tar.getmember("ustar/blktype")
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self._test_member(tarinfo, size=0, devmajor=3, devminor=0)
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|
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_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.assertTrue(name in 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 = 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(ReadTest):
|
|
|
|
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.assertTrue(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.assertTrue(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))
|
|
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
|
|
fobj = open(tarname, "rb")
|
|
fobj.seek(offset)
|
|
tarinfo = tarfile.TarInfo.frombuf(fobj.read(512), "iso8859-1", "strict")
|
|
self.assertEqual(tarinfo.type, self.longnametype)
|
|
|
|
|
|
class GNUReadTest(LongnameTest):
|
|
|
|
subdir = "gnu"
|
|
longnametype = tarfile.GNUTYPE_LONGNAME
|
|
|
|
def test_sparse_file(self):
|
|
tarinfo1 = self.tar.getmember("ustar/sparse")
|
|
fobj1 = self.tar.extractfile(tarinfo1)
|
|
tarinfo2 = self.tar.getmember("gnu/sparse")
|
|
fobj2 = self.tar.extractfile(tarinfo2)
|
|
self.assertEqual(fobj1.read(), fobj2.read(),
|
|
"sparse file extraction failed")
|
|
|
|
|
|
class PaxReadTest(LongnameTest):
|
|
|
|
subdir = "pax"
|
|
longnametype = tarfile.XHDTYPE
|
|
|
|
def test_pax_global_headers(self):
|
|
tar = tarfile.open(tarname, encoding="iso8859-1")
|
|
|
|
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")
|
|
|
|
def test_pax_number_fields(self):
|
|
# All following number fields are read from the pax header.
|
|
tar = tarfile.open(tarname, encoding="iso8859-1")
|
|
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)
|
|
|
|
|
|
class WriteTestBase(unittest.TestCase):
|
|
# 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.assertTrue(fobj.closed is False, "external fileobjs must never closed")
|
|
|
|
|
|
class WriteTest(WriteTestBase):
|
|
|
|
mode = "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)
|
|
t = tarfile.TarInfo(name)
|
|
tar.addfile(t)
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname)
|
|
self.assertTrue(tar.getnames()[0] == name,
|
|
"failed to store 100 char filename")
|
|
tar.close()
|
|
|
|
def test_tar_size(self):
|
|
# Test for bug #1013882.
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
path = os.path.join(TEMPDIR, "file")
|
|
fobj = open(path, "wb")
|
|
fobj.write(b"aaa")
|
|
fobj.close()
|
|
tar.add(path)
|
|
tar.close()
|
|
self.assertTrue(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)
|
|
|
|
path = os.path.join(TEMPDIR, "file")
|
|
fobj = open(path, "wb")
|
|
fobj.close()
|
|
tarinfo = tar.gettarinfo(path)
|
|
self.assertEqual(tarinfo.size, 0)
|
|
|
|
fobj = open(path, "wb")
|
|
fobj.write(b"aaa")
|
|
fobj.close()
|
|
tarinfo = tar.gettarinfo(path)
|
|
self.assertEqual(tarinfo.size, 3)
|
|
|
|
tar.close()
|
|
|
|
def test_directory_size(self):
|
|
path = os.path.join(TEMPDIR, "directory")
|
|
os.mkdir(path)
|
|
try:
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
tarinfo = tar.gettarinfo(path)
|
|
self.assertEqual(tarinfo.size, 0)
|
|
finally:
|
|
os.rmdir(path)
|
|
|
|
def test_link_size(self):
|
|
if hasattr(os, "link"):
|
|
link = os.path.join(TEMPDIR, "link")
|
|
target = os.path.join(TEMPDIR, "link_target")
|
|
open(target, "wb").close()
|
|
os.link(target, link)
|
|
try:
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
tarinfo = tar.gettarinfo(link)
|
|
self.assertEqual(tarinfo.size, 0)
|
|
finally:
|
|
os.remove(target)
|
|
os.remove(link)
|
|
|
|
def test_symlink_size(self):
|
|
if hasattr(os, "symlink"):
|
|
path = os.path.join(TEMPDIR, "symlink")
|
|
os.symlink("link_target", path)
|
|
try:
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
tarinfo = tar.gettarinfo(path)
|
|
self.assertEqual(tarinfo.size, 0)
|
|
finally:
|
|
os.remove(path)
|
|
|
|
def test_add_self(self):
|
|
# Test for #1257255.
|
|
dstname = os.path.abspath(tmpname)
|
|
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
self.assertTrue(tar.name == dstname, "archive name must be absolute")
|
|
|
|
tar.add(dstname)
|
|
self.assertTrue(tar.getnames() == [], "added the archive to itself")
|
|
|
|
cwd = os.getcwd()
|
|
os.chdir(TEMPDIR)
|
|
tar.add(dstname)
|
|
os.chdir(cwd)
|
|
self.assertTrue(tar.getnames() == [], "added the archive to itself")
|
|
|
|
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)
|
|
open(name, "wb").close()
|
|
|
|
def exclude(name):
|
|
return os.path.isfile(name)
|
|
|
|
tar = tarfile.open(tmpname, self.mode, encoding="iso8859-1")
|
|
tar.add(tempdir, arcname="empty_dir", exclude=exclude)
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname, "r")
|
|
self.assertEqual(len(tar.getmembers()), 1)
|
|
self.assertEqual(tar.getnames()[0], "empty_dir")
|
|
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)
|
|
open(name, "wb").close()
|
|
|
|
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")
|
|
tar.add(tempdir, arcname="empty_dir", filter=filter)
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname, "r")
|
|
for tarinfo in tar:
|
|
self.assertEqual(tarinfo.uid, 123)
|
|
self.assertEqual(tarinfo.uname, "foo")
|
|
self.assertEqual(len(tar.getmembers()), 3)
|
|
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:
|
|
open(foo, "w").close()
|
|
else:
|
|
os.mkdir(foo)
|
|
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
tar.add(foo, arcname=path)
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname, "r")
|
|
t = tar.next()
|
|
tar.close()
|
|
|
|
if not dir:
|
|
os.remove(foo)
|
|
else:
|
|
os.rmdir(foo)
|
|
|
|
self.assertEqual(t.name, cmp_path or path.replace(os.sep, "/"))
|
|
|
|
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:
|
|
open("foo", "w").close()
|
|
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
tar.add(".")
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname, "r")
|
|
for t in tar:
|
|
self.assert_(t.name == "." or t.name.startswith("./"))
|
|
tar.close()
|
|
finally:
|
|
os.chdir(cwd)
|
|
|
|
|
|
class StreamWriteTest(WriteTestBase):
|
|
|
|
mode = "w|"
|
|
|
|
def test_stream_padding(self):
|
|
# Test for bug #1543303.
|
|
tar = tarfile.open(tmpname, self.mode)
|
|
tar.close()
|
|
|
|
if self.mode.endswith("gz"):
|
|
fobj = gzip.GzipFile(tmpname)
|
|
data = fobj.read()
|
|
fobj.close()
|
|
elif self.mode.endswith("bz2"):
|
|
dec = bz2.BZ2Decompressor()
|
|
data = open(tmpname, "rb").read()
|
|
data = dec.decompress(data)
|
|
self.assertTrue(len(dec.unused_data) == 0,
|
|
"found trailing data")
|
|
else:
|
|
fobj = open(tmpname, "rb")
|
|
data = fobj.read()
|
|
fobj.close()
|
|
|
|
self.assertTrue(data.count(b"\0") == tarfile.RECORDSIZE,
|
|
"incorrect zero padding")
|
|
|
|
|
|
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, remainder = divmod(len(s) + 1, 512)
|
|
if remainder:
|
|
blocks += 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")
|
|
tar.format = tarfile.GNU_FORMAT
|
|
tar.addfile(tarinfo)
|
|
|
|
v1 = self._calc_size(name, link)
|
|
v2 = tar.offset
|
|
self.assertTrue(v1 == v2, "GNU longname/longlink creation failed")
|
|
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname)
|
|
member = tar.next()
|
|
self.assertFalse(member is None, "unable to read longname member")
|
|
self.assertTrue(tarinfo.name == member.name and \
|
|
tarinfo.linkname == member.linkname, \
|
|
"unable to read longname member")
|
|
|
|
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_")
|
|
|
|
|
|
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")
|
|
|
|
fobj = open(self.foo, "wb")
|
|
fobj.write(b"foo")
|
|
fobj.close()
|
|
|
|
os.link(self.foo, self.bar)
|
|
|
|
self.tar = tarfile.open(tmpname, "w")
|
|
self.tar.add(self.foo)
|
|
|
|
def tearDown(self):
|
|
self.tar.close()
|
|
os.remove(self.foo)
|
|
os.remove(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.assertTrue(tarinfo.type == tarfile.REGTYPE,
|
|
"add file as regular failed")
|
|
|
|
def test_add_hardlink(self):
|
|
tarinfo = self.tar.gettarinfo(self.bar)
|
|
self.assertTrue(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.assertTrue(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)
|
|
tar.addfile(tarinfo)
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname)
|
|
if link:
|
|
l = tar.getmembers()[0].linkname
|
|
self.assertTrue(link == l, "PAX longlink creation failed")
|
|
else:
|
|
n = tar.getmembers()[0].name
|
|
self.assertTrue(name == n, "PAX longname creation failed")
|
|
|
|
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)
|
|
tar.addfile(tarfile.TarInfo("test"))
|
|
tar.close()
|
|
|
|
# Test if the global header was written correctly.
|
|
tar = tarfile.open(tmpname, encoding="iso8859-1")
|
|
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.assertTrue(type(key) is not bytes)
|
|
self.assertTrue(type(val) is not 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")
|
|
|
|
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")
|
|
t = tarfile.TarInfo()
|
|
t.name = "\xe4\xf6\xfc" # non-ASCII
|
|
t.uid = 8**8 # too large
|
|
t.pax_headers = pax_headers
|
|
tar.addfile(t)
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname, encoding="iso8859-1")
|
|
t = tar.getmembers()[0]
|
|
self.assertEqual(t.pax_headers, pax_headers)
|
|
self.assertEqual(t.name, "foo")
|
|
self.assertEqual(t.uid, 123)
|
|
|
|
|
|
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("utf8")
|
|
|
|
def _test_unicode_filename(self, encoding):
|
|
tar = tarfile.open(tmpname, "w", format=self.format, encoding=encoding, errors="strict")
|
|
name = "\xe4\xf6\xfc"
|
|
tar.addfile(tarfile.TarInfo(name))
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname, encoding=encoding)
|
|
self.assertEqual(tar.getmembers()[0].name, name)
|
|
tar.close()
|
|
|
|
def test_unicode_filename_error(self):
|
|
if self.format == tarfile.PAX_FORMAT:
|
|
# PAX_FORMAT ignores encoding in write mode.
|
|
return
|
|
|
|
tar = tarfile.open(tmpname, "w", format=self.format, encoding="ascii", errors="strict")
|
|
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)
|
|
|
|
def test_unicode_argument(self):
|
|
tar = tarfile.open(tarname, "r", encoding="iso8859-1", errors="strict")
|
|
for t in tar:
|
|
self.assertTrue(type(t.name) is str)
|
|
self.assertTrue(type(t.linkname) is str)
|
|
self.assertTrue(type(t.uname) is str)
|
|
self.assertTrue(type(t.gname) is str)
|
|
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")
|
|
tar.addfile(t)
|
|
tar.close()
|
|
|
|
tar = tarfile.open(tmpname, encoding="iso8859-1")
|
|
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 = tarfile.open(tmpname, encoding="ascii")
|
|
t = tar.getmember("foo")
|
|
self.assertEqual(t.uname, "\ufffd\ufffd\ufffd")
|
|
self.assertEqual(t.gname, "\ufffd\ufffd\ufffd")
|
|
|
|
|
|
class GNUUnicodeTest(UstarUnicodeTest):
|
|
|
|
format = tarfile.GNU_FORMAT
|
|
|
|
|
|
class PAXUnicodeTest(UstarUnicodeTest):
|
|
|
|
format = tarfile.PAX_FORMAT
|
|
|
|
|
|
class AppendTest(unittest.TestCase):
|
|
# Test append mode (cp. patch #1652681).
|
|
|
|
def setUp(self):
|
|
self.tarname = tmpname
|
|
if os.path.exists(self.tarname):
|
|
os.remove(self.tarname)
|
|
|
|
def _add_testfile(self, fileobj=None):
|
|
tar = tarfile.open(self.tarname, "a", fileobj=fileobj)
|
|
tar.addfile(tarfile.TarInfo("bar"))
|
|
tar.close()
|
|
|
|
def _create_testtar(self, mode="w:"):
|
|
src = tarfile.open(tarname, encoding="iso8859-1")
|
|
t = src.getmember("ustar/regtype")
|
|
t.name = "foo"
|
|
f = src.extractfile(t)
|
|
tar = tarfile.open(self.tarname, mode)
|
|
tar.addfile(t, f)
|
|
tar.close()
|
|
|
|
def _test(self, names=["bar"], fileobj=None):
|
|
tar = tarfile.open(self.tarname, fileobj=fileobj)
|
|
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()
|
|
data = open(self.tarname, "rb").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"])
|
|
|
|
def test_append_gz(self):
|
|
if gzip is None:
|
|
return
|
|
self._create_testtar("w:gz")
|
|
self.assertRaises(tarfile.ReadError, tarfile.open, tmpname, "a")
|
|
|
|
def test_append_bz2(self):
|
|
if bz2 is None:
|
|
return
|
|
self._create_testtar("w:bz2")
|
|
self.assertRaises(tarfile.ReadError, tarfile.open, tmpname, "a")
|
|
|
|
# Append mode is supposed to fail if the tarfile to append to
|
|
# does not end with a zero block.
|
|
def _test_error(self, data):
|
|
open(self.tarname, "wb").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 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_number_fields(self):
|
|
self.assertEqual(tarfile.itn(1), b"0000001\x00")
|
|
self.assertEqual(tarfile.itn(0xffffffff), b"\x80\x00\x00\x00\xff\xff\xff\xff")
|
|
|
|
|
|
class GzipMiscReadTest(MiscReadTest):
|
|
tarname = gzipname
|
|
mode = "r:gz"
|
|
class GzipUstarReadTest(UstarReadTest):
|
|
tarname = gzipname
|
|
mode = "r:gz"
|
|
class GzipStreamReadTest(StreamReadTest):
|
|
tarname = gzipname
|
|
mode = "r|gz"
|
|
class GzipWriteTest(WriteTest):
|
|
mode = "w:gz"
|
|
class GzipStreamWriteTest(StreamWriteTest):
|
|
mode = "w|gz"
|
|
|
|
|
|
class Bz2MiscReadTest(MiscReadTest):
|
|
tarname = bz2name
|
|
mode = "r:bz2"
|
|
class Bz2UstarReadTest(UstarReadTest):
|
|
tarname = bz2name
|
|
mode = "r:bz2"
|
|
class Bz2StreamReadTest(StreamReadTest):
|
|
tarname = bz2name
|
|
mode = "r|bz2"
|
|
class Bz2WriteTest(WriteTest):
|
|
mode = "w:bz2"
|
|
class Bz2StreamWriteTest(StreamWriteTest):
|
|
mode = "w|bz2"
|
|
|
|
class Bz2PartialReadTest(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 test_main():
|
|
os.makedirs(TEMPDIR)
|
|
|
|
tests = [
|
|
UstarReadTest,
|
|
MiscReadTest,
|
|
StreamReadTest,
|
|
DetectReadTest,
|
|
MemberReadTest,
|
|
GNUReadTest,
|
|
PaxReadTest,
|
|
WriteTest,
|
|
StreamWriteTest,
|
|
GNUWriteTest,
|
|
PaxWriteTest,
|
|
UstarUnicodeTest,
|
|
GNUUnicodeTest,
|
|
PAXUnicodeTest,
|
|
AppendTest,
|
|
LimitsTest,
|
|
MiscTest,
|
|
]
|
|
|
|
if hasattr(os, "link"):
|
|
tests.append(HardlinkTest)
|
|
|
|
fobj = open(tarname, "rb")
|
|
data = fobj.read()
|
|
fobj.close()
|
|
|
|
if gzip:
|
|
# Create testtar.tar.gz and add gzip-specific tests.
|
|
tar = gzip.open(gzipname, "wb")
|
|
tar.write(data)
|
|
tar.close()
|
|
|
|
tests += [
|
|
GzipMiscReadTest,
|
|
GzipUstarReadTest,
|
|
GzipStreamReadTest,
|
|
GzipWriteTest,
|
|
GzipStreamWriteTest,
|
|
]
|
|
|
|
if bz2:
|
|
# Create testtar.tar.bz2 and add bz2-specific tests.
|
|
tar = bz2.BZ2File(bz2name, "wb")
|
|
tar.write(data)
|
|
tar.close()
|
|
|
|
tests += [
|
|
Bz2MiscReadTest,
|
|
Bz2UstarReadTest,
|
|
Bz2StreamReadTest,
|
|
Bz2WriteTest,
|
|
Bz2StreamWriteTest,
|
|
Bz2PartialReadTest,
|
|
]
|
|
|
|
try:
|
|
support.run_unittest(*tests)
|
|
finally:
|
|
if os.path.exists(TEMPDIR):
|
|
shutil.rmtree(TEMPDIR)
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|