# encoding: iso8859-1 import sys import os import shutil import tempfile import StringIO from hashlib import md5 import errno import unittest import tarfile from test import test_support # Check for our compression modules. try: import gzip gzip.GzipFile except (ImportError, AttributeError): gzip = None try: import bz2 except ImportError: bz2 = None def md5sum(data): return md5(data).hexdigest() def path(path): return test_support.findfile(path) TEMPDIR = os.path.join(tempfile.gettempdir(), "test_tarfile_tmp") tarname = path("testtar.tar") gzipname = os.path.join(TEMPDIR, "testtar.tar.gz") bz2name = os.path.join(TEMPDIR, "testtar.tar.bz2") tmpname = os.path.join(TEMPDIR, "tmp.tar") md5_regtype = "65f477c818ad9e15f7feab0c6d37742f" md5_sparse = "a54fbc4ca4f4399a90e1b27164012fc6" class ReadTest(unittest.TestCase): tarname = tarname mode = "r:" def setUp(self): self.tar = tarfile.open(self.tarname, mode=self.mode, encoding="iso8859-1") def tearDown(self): self.tar.close() class UstarReadTest(ReadTest): def test_fileobj_regular_file(self): tarinfo = self.tar.getmember("ustar/regtype") fobj = self.tar.extractfile(tarinfo) data = fobj.read() self.assert_((len(data), md5sum(data)) == (tarinfo.size, md5_regtype), "regular file extraction failed") def test_fileobj_readlines(self): self.tar.extract("ustar/regtype", TEMPDIR) tarinfo = self.tar.getmember("ustar/regtype") fobj1 = open(os.path.join(TEMPDIR, "ustar/regtype"), "rU") fobj2 = self.tar.extractfile(tarinfo) lines1 = fobj1.readlines() lines2 = fobj2.readlines() self.assert_(lines1 == lines2, "fileobj.readlines() failed") self.assert_(len(lines2) == 114, "fileobj.readlines() failed") self.assert_(lines2[83] == \ "I will gladly admit that Python is not the fastest running scripting language.\n", "fileobj.readlines() failed") def test_fileobj_iter(self): self.tar.extract("ustar/regtype", TEMPDIR) tarinfo = self.tar.getmember("ustar/regtype") fobj1 = open(os.path.join(TEMPDIR, "ustar/regtype"), "rU") fobj2 = self.tar.extractfile(tarinfo) lines1 = fobj1.readlines() lines2 = [line for line in fobj2] self.assert_(lines1 == lines2, "fileobj.__iter__() failed") def test_fileobj_seek(self): self.tar.extract("ustar/regtype", TEMPDIR) fobj = open(os.path.join(TEMPDIR, "ustar/regtype"), "rb") data = fobj.read() fobj.close() tarinfo = self.tar.getmember("ustar/regtype") fobj = self.tar.extractfile(tarinfo) text = fobj.read() fobj.seek(0) self.assert_(0 == fobj.tell(), "seek() to file's start failed") fobj.seek(2048, 0) self.assert_(2048 == fobj.tell(), "seek() to absolute position failed") fobj.seek(-1024, 1) self.assert_(1024 == fobj.tell(), "seek() to negative relative position failed") fobj.seek(1024, 1) self.assert_(2048 == fobj.tell(), "seek() to positive relative position failed") s = fobj.read(10) self.assert_(s == data[2048:2058], "read() after seek failed") fobj.seek(0, 2) self.assert_(tarinfo.size == fobj.tell(), "seek() to file's end failed") self.assert_(fobj.read() == "", "read() at file's end did not return empty string") fobj.seek(-tarinfo.size, 2) self.assert_(0 == fobj.tell(), "relative seek() to file's start failed") fobj.seek(512) s1 = fobj.readlines() fobj.seek(512) s2 = fobj.readlines() self.assert_(s1 == s2, "readlines() after seek failed") fobj.seek(0) self.assert_(len(fobj.readline()) == fobj.tell(), "tell() after readline() failed") fobj.seek(512) self.assert_(len(fobj.readline()) + 512 == fobj.tell(), "tell() after seek() and readline() failed") fobj.seek(0) line = fobj.readline() self.assert_(fobj.read() == data[len(line):], "read() after readline() failed") fobj.close() class MiscReadTest(ReadTest): def test_no_filename(self): fobj = open(self.tarname, "rb") tar = tarfile.open(fileobj=fobj, mode=self.mode) self.assertEqual(tar.name, os.path.abspath(fobj.name)) def test_fail_comp(self): # For Gzip and Bz2 Tests: fail with a ReadError on an uncompressed file. if self.mode == "r:": return self.assertRaises(tarfile.ReadError, tarfile.open, tarname, self.mode) fobj = open(tarname, "rb") self.assertRaises(tarfile.ReadError, tarfile.open, fileobj=fobj, mode=self.mode) 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. tarinfo = self.tar.getmember("misc/dirtype-old-v7") self.assert_(tarinfo.type == tarfile.DIRTYPE, "v7 dirtype failed") def test_check_members(self): for tarinfo in self.tar: self.assert_(int(tarinfo.mtime) == 07606136617, "wrong mtime for %s" % tarinfo.name) if not tarinfo.name.startswith("ustar/"): continue self.assert_(tarinfo.uname == "tarfile", "wrong uname for %s" % tarinfo.name) def test_find_members(self): self.assert_(self.tar.getmembers()[-1].name == "misc/eof", "could not find all members") def test_extract_hardlink(self): # Test hardlink extraction (e.g. bug #857297). tar = tarfile.open(tarname, errorlevel=1, encoding="iso8859-1") tar.extract("ustar/regtype", TEMPDIR) try: tar.extract("ustar/lnktype", TEMPDIR) except EnvironmentError as e: if e.errno == errno.ENOENT: self.fail("hardlink not extracted properly") data = open(os.path.join(TEMPDIR, "ustar/lnktype"), "rb").read() self.assertEqual(md5sum(data), md5_regtype) try: tar.extract("ustar/symtype", TEMPDIR) except EnvironmentError as e: if e.errno == errno.ENOENT: self.fail("symlink not extracted properly") data = open(os.path.join(TEMPDIR, "ustar/symtype"), "rb").read() self.assertEqual(md5sum(data), md5_regtype) class StreamReadTest(ReadTest): mode="r|" def test_fileobj_regular_file(self): tarinfo = self.tar.next() # get "regtype" (can't use getmember) fobj = self.tar.extractfile(tarinfo) data = fobj.read() self.assert_((len(data), md5sum(data)) == (tarinfo.size, md5_regtype), "regular file extraction failed") def test_provoke_stream_error(self): tarinfos = self.tar.getmembers() f = self.tar.extractfile(tarinfos[0]) # read the first member self.assertRaises(tarfile.StreamError, f.read) def test_compare_members(self): tar1 = tarfile.open(tarname, encoding="iso8859-1") tar2 = self.tar while True: t1 = tar1.next() t2 = tar2.next() if t1 is None: break self.assert_(t2 is not None, "stream.next() failed.") if t2.islnk() or t2.issym(): self.assertRaises(tarfile.StreamError, tar2.extractfile, t2) continue v1 = tar1.extractfile(t1) v2 = tar2.extractfile(t2) if v1 is None: continue self.assert_(v2 is not None, "stream.extractfile() failed") self.assert_(v1.read() == v2.read(), "stream extraction failed") tar1.close() class DetectReadTest(unittest.TestCase): def _testfunc_file(self, name, mode): try: tarfile.open(name, mode) except tarfile.ReadError: self.fail() def _testfunc_fileobj(self, name, mode): try: tarfile.open(name, mode, fileobj=open(name, "rb")) except tarfile.ReadError: self.fail() def _test_modes(self, testfunc): testfunc(tarname, "r") testfunc(tarname, "r:") testfunc(tarname, "r:*") testfunc(tarname, "r|") testfunc(tarname, "r|*") if gzip: self.assertRaises(tarfile.ReadError, tarfile.open, tarname, mode="r:gz") self.assertRaises(tarfile.ReadError, tarfile.open, tarname, mode="r|gz") self.assertRaises(tarfile.ReadError, tarfile.open, gzipname, mode="r:") self.assertRaises(tarfile.ReadError, tarfile.open, gzipname, mode="r|") testfunc(gzipname, "r") testfunc(gzipname, "r:*") testfunc(gzipname, "r:gz") testfunc(gzipname, "r|*") testfunc(gzipname, "r|gz") if bz2: self.assertRaises(tarfile.ReadError, tarfile.open, tarname, mode="r:bz2") self.assertRaises(tarfile.ReadError, tarfile.open, tarname, mode="r|bz2") self.assertRaises(tarfile.ReadError, tarfile.open, bz2name, mode="r:") self.assertRaises(tarfile.ReadError, tarfile.open, bz2name, mode="r|") testfunc(bz2name, "r") testfunc(bz2name, "r:*") testfunc(bz2name, "r:bz2") testfunc(bz2name, "r|*") testfunc(bz2name, "r|bz2") def test_detect_file(self): self._test_modes(self._testfunc_file) def test_detect_fileobj(self): self._test_modes(self._testfunc_fileobj) class MemberReadTest(ReadTest): def _test_member(self, tarinfo, chksum=None, **kwargs): if chksum is not None: self.assert_(md5sum(self.tar.extractfile(tarinfo).read()) == chksum, "wrong md5sum for %s" % tarinfo.name) kwargs["mtime"] = 07606136617 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.assert_(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_umlauts(self): tarinfo = self.tar.getmember("ustar/umlauts-ÄÖÜäöüß") self._test_member(tarinfo, size=7011, chksum=md5_regtype) def test_find_ustar_longname(self): name = "ustar/" + "12345/" * 39 + "1234567/longname" self.assert_(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-ÄÖÜäöüß") self._test_member(tarinfo, size=7011, chksum=md5_regtype) class LongnameTest(ReadTest): def test_read_longname(self): # Test reading of longname (bug #1471427). name = self.subdir + "/" + "123/" * 125 + "longname" try: tarinfo = self.tar.getmember(name) except KeyError: self.fail("longname not found") self.assert_(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.assert_(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 = StringIO.StringIO(self.tar.fileobj.read(1536)) self.assertRaises(tarfile.ReadError, tarfile.open, name="foo.tar", fileobj=fobj) class GNUReadTest(LongnameTest): subdir = "gnu" 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.assert_(fobj1.read() == fobj2.read(), "sparse file extraction failed") class PaxReadTest(ReadTest): subdir = "pax" def test_pax_globheaders(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"), "ÄÖÜäöüß") tarinfo = tar.getmember("pax/regtype2") self.assertEqual(tarinfo.uname, "") self.assertEqual(tarinfo.gname, "bar") self.assertEqual(tarinfo.pax_headers.get("VENDOR.umlauts"), "ÄÖÜäöüß") tarinfo = tar.getmember("pax/regtype3") self.assertEqual(tarinfo.uname, "tarfile") self.assertEqual(tarinfo.gname, "tarfile") self.assertEqual(tarinfo.pax_headers.get("VENDOR.umlauts"), "ÄÖÜäöüß") class WriteTest(unittest.TestCase): 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.assert_(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("aaa") fobj.close() tar.add(path) tar.close() self.assert_(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("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.assert_(tar.name == dstname, "archive name must be absolute") tar.add(dstname) self.assert_(tar.getnames() == [], "added the archive to itself") cwd = os.getcwd() os.chdir(TEMPDIR) tar.add(dstname) os.chdir(cwd) self.assert_(tar.getnames() == [], "added the archive to itself") class StreamWriteTest(unittest.TestCase): 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.assert_(len(dec.unused_data) == 0, "found trailing data") else: fobj = open(tmpname, "rb") data = fobj.read() fobj.close() self.assert_(data.count("\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.assert_(v1 == v2, "GNU longname/longlink creation failed") tar.close() tar = tarfile.open(tmpname) member = tar.next() self.failIf(member is None, "unable to read longname member") self.assert_(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("foo") fobj.close() os.link(self.foo, self.bar) self.tar = tarfile.open(tmpname, "w") self.tar.add(self.foo) def tearDown(self): 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.assert_(tarinfo.type == tarfile.REGTYPE, "add file as regular failed") def test_add_hardlink(self): tarinfo = self.tar.gettarinfo(self.bar) self.assert_(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.assert_(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.assert_(link == l, "PAX longlink creation failed") else: n = tar.getmembers()[0].name self.assert_(name == n, "PAX longname creation failed") def test_iso8859_15_filename(self): self._test_unicode_filename("iso8859-15") def test_utf8_filename(self): self._test_unicode_filename("utf8") def test_utf16_filename(self): self._test_unicode_filename("utf16") def _test_unicode_filename(self, encoding): tar = tarfile.open(tmpname, "w", format=tarfile.PAX_FORMAT) name = "\u20ac".encode(encoding) # Euro sign tar.encoding = encoding 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): # The euro sign filename cannot be translated to iso8859-1 encoding. tar = tarfile.open(tmpname, "w", format=tarfile.PAX_FORMAT, encoding="utf8") name = "\u20ac".encode("utf8") # Euro sign tar.addfile(tarfile.TarInfo(name)) tar.close() self.assertRaises(UnicodeError, tarfile.open, tmpname, encoding="iso8859-1") def test_pax_headers(self): self._test_pax_headers({"foo": "bar", "uid": 0, "mtime": 1.23}) self._test_pax_headers({"euro": "\u20ac".encode("utf8")}) self._test_pax_headers({"euro": "\u20ac"}, {"euro": "\u20ac".encode("utf8")}) self._test_pax_headers({"\u20ac": "euro"}, {"\u20ac".encode("utf8"): "euro"}) def _test_pax_headers(self, pax_headers, cmp_headers=None): if cmp_headers is None: cmp_headers = pax_headers tar = tarfile.open(tmpname, "w", format=tarfile.PAX_FORMAT, \ pax_headers=pax_headers, encoding="utf8") tar.addfile(tarfile.TarInfo("test")) tar.close() tar = tarfile.open(tmpname, encoding="utf8") self.assertEqual(tar.pax_headers, cmp_headers) def test_truncated_header(self): tar = tarfile.open(tmpname, "w", format=tarfile.PAX_FORMAT) tarinfo = tarfile.TarInfo("123/" * 126 + "longname") tar.addfile(tarinfo) tar.close() # Simulate a premature EOF. open(tmpname, "rb+").truncate(1536) tar = tarfile.open(tmpname) self.assertEqual(tar.getmembers(), []) 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): open(self.tarname, "w").close() self._add_testfile() self._test() def test_empty_fileobj(self): fobj = StringIO.StringIO() self._add_testfile(fobj) fobj.seek(0) self._test(fileobj=fobj) def test_fileobj(self): self._create_testtar() data = open(self.tarname).read() fobj = StringIO.StringIO(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") class LimitsTest(unittest.TestCase): def test_ustar_limits(self): # 100 char name tarinfo = tarfile.TarInfo("0123456789" * 10) tarinfo.create_ustar_header() # 101 char name that cannot be stored tarinfo = tarfile.TarInfo("0123456789" * 10 + "0") self.assertRaises(ValueError, tarinfo.create_ustar_header) # 256 char name with a slash at pos 156 tarinfo = tarfile.TarInfo("123/" * 62 + "longname") tarinfo.create_ustar_header() # 256 char name that cannot be stored tarinfo = tarfile.TarInfo("1234567/" * 31 + "longname") self.assertRaises(ValueError, tarinfo.create_ustar_header) # 512 char name tarinfo = tarfile.TarInfo("123/" * 126 + "longname") self.assertRaises(ValueError, tarinfo.create_ustar_header) # 512 char linkname tarinfo = tarfile.TarInfo("longlink") tarinfo.linkname = "123/" * 126 + "longname" self.assertRaises(ValueError, tarinfo.create_ustar_header) # uid > 8 digits tarinfo = tarfile.TarInfo("name") tarinfo.uid = 010000000 self.assertRaises(ValueError, tarinfo.create_ustar_header) def test_gnu_limits(self): tarinfo = tarfile.TarInfo("123/" * 126 + "longname") tarinfo.create_gnu_header() tarinfo = tarfile.TarInfo("longlink") tarinfo.linkname = "123/" * 126 + "longname" tarinfo.create_gnu_header() # uid >= 256 ** 7 tarinfo = tarfile.TarInfo("name") tarinfo.uid = 04000000000000000000 self.assertRaises(ValueError, tarinfo.create_gnu_header) def test_pax_limits(self): # A 256 char name that can be stored without an extended header. tarinfo = tarfile.TarInfo("123/" * 62 + "longname") self.assert_(len(tarinfo.create_pax_header("utf8")) == 512, "create_pax_header attached superfluous extended header") tarinfo = tarfile.TarInfo("123/" * 126 + "longname") tarinfo.create_pax_header("utf8") tarinfo = tarfile.TarInfo("longlink") tarinfo.linkname = "123/" * 126 + "longname" tarinfo.create_pax_header("utf8") tarinfo = tarfile.TarInfo("name") tarinfo.uid = 04000000000000000000 tarinfo.create_pax_header("utf8") 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" def test_main(): if not os.path.exists(TEMPDIR): os.mkdir(TEMPDIR) tests = [ UstarReadTest, MiscReadTest, StreamReadTest, DetectReadTest, MemberReadTest, GNUReadTest, PaxReadTest, WriteTest, StreamWriteTest, GNUWriteTest, PaxWriteTest, AppendTest, LimitsTest, ] 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, ] try: test_support.run_unittest(*tests) finally: if os.path.exists(TEMPDIR): shutil.rmtree(TEMPDIR) if __name__ == "__main__": test_main()