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# Unix SMB/CIFS implementation.
# Copyright (C) Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import tarfile
from samba import safe_tarfile
import os
from samba.tests import TestCaseInTempDir
def filterer(prefix):
def f(info):
info.name = prefix + info.name
return info
return f
class SafeTarFileTestCase(TestCaseInTempDir):
def test_dots(self):
filename = os.path.join(self.tempdir, 'x')
tarname = os.path.join(self.tempdir, 'tar.tar')
f = open(filename, 'w')
f.write('x')
f.close()
tf = tarfile.open(tarname, 'w')
tf.add(filename, filter=filterer('../../'))
tf.close()
stf = safe_tarfile.open(tarname)
# If we have data_filter, we have a patched python to address
# CVE-2007-4559.
if hasattr(tarfile, "data_filter"):
self.assertRaises(tarfile.OutsideDestinationError,
stf.extractall,
tarname)
else:
self.assertRaises(tarfile.ExtractError,
stf.extractall,
tarname)
self.rm_files('x', 'tar.tar')
def test_slash(self):
filename = os.path.join(self.tempdir, 'x')
tarname = os.path.join(self.tempdir, 'tar.tar')
f = open(filename, 'w')
f.write('x')
f.close()
tf = tarfile.open(tarname, 'w')
tf.add(filename, filter=filterer('/'))
tf.close()
stf = safe_tarfile.open(tarname)
# If we have data_filter, we have a patched python to address
# CVE-2007-4559.
if hasattr(tarfile, "data_filter"):
self.assertRaises(NotADirectoryError,
stf.extractall,
tarname)
else:
self.assertRaises(tarfile.ExtractError,
stf.extractall,
tarname)
self.rm_files('x', 'tar.tar')
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