def test_different(self):
src = './tests/data/'
dst = './tests/data/parallel'
if sys.version_info >= (3, 8):
with os.scandir(src) as itr:
entries = list(itr)
shutil._copytree(entries=entries,
src=src,
dst=dst,
symlinks=False,
ignore=None,
copy_function=shutil.copy2,
ignore_dangling_symlinks=False)
else:
shutil.copytree(src, dst)
proc = subprocess.Popen(mat2_binary +
glob.glob('./tests/data/parallel/dirty.*'),
stdout=subprocess.PIPE)
stdout, _ = proc.communicate()
for i in glob.glob('./test/data/parallel/dirty.cleaned.*'):
p, mime = parser_factory.get_parser(i)
self.assertIsNotNone(mime)
self.assertIsNotNone(p)
p = parser_factory.get_parser(p.output_filename)
self.assertEqual(p.get_meta(), {})
shutil.rmtree('./tests/data/parallel')
def test_different(self):
shutil.copytree('./tests/data/', './tests/data/parallel')
proc = subprocess.Popen(mat2_binary +
glob.glob('./tests/data/parallel/dirty.*'),
stdout=subprocess.PIPE)
stdout, _ = proc.communicate()
for i in glob.glob('./test/data/parallel/dirty.cleaned.*'):
p, mime = parser_factory.get_parser(i)
self.assertIsNotNone(mime)
self.assertIsNotNone(p)
p = parser_factory.get_parser(p.output_filename)
self.assertEqual(p.get_meta(), {})
shutil.rmtree('./tests/data/parallel')
def test_odt(self):
shutil.copy('./tests/data/embedded_corrupted.odt',
'./tests/data/clean.odt')
parser, _ = parser_factory.get_parser('./tests/data/clean.odt')
self.assertFalse(parser.remove_all())
self.assertTrue(parser.get_meta())
os.remove('./tests/data/clean.odt')
def clean_meta(filename: str, is_lightweight: bool, inplace: bool,
sandbox: bool, policy: UnknownMemberPolicy) -> bool:
mode = (os.R_OK | os.W_OK) if inplace else os.R_OK
if not __check_file(filename, mode):
return False
try:
p, mtype = parser_factory.get_parser(filename) # type: ignore
except ValueError as e:
print("[-] something went wrong when cleaning %s: %s" % (filename, e))
return False
if p is None:
print("[-] %s's format (%s) is not supported" % (filename, mtype))
return False
p.unknown_member_policy = policy
p.lightweight_cleaning = is_lightweight
p.sandbox = sandbox
try:
logging.debug('Cleaning %s…', filename)
ret = p.remove_all()
if ret is True:
shutil.copymode(filename, p.output_filename)
if inplace is True:
os.rename(p.output_filename, filename)
return ret
except RuntimeError as e:
print("[-] %s can't be cleaned: %s" % (filename, e))
return False
def test_css(self):
p, mimetype = parser_factory.get_parser('./tests/data/dirty.css')
self.assertEqual(mimetype, 'text/css')
meta = p.get_meta()
self.assertEqual(meta['author'], 'jvoisin')
self.assertEqual(meta['version'], '1.0')
self.assertEqual(meta['harmful data'], 'underline is cool')
def test_tar(self):
with tarfile.TarFile.open('./tests/data/clean.tar', 'w') as zout:
zout.add('./tests/data/dirty.flac')
zout.add('./tests/data/dirty.docx')
zout.add('./tests/data/dirty.jpg')
zout.add('./tests/data/embedded_corrupted.docx')
tarinfo = tarfile.TarInfo(name='./tests/data/dirty.png')
tarinfo.mtime = time.time()
tarinfo.uid = 1337
tarinfo.gid = 1338
tarinfo.size = os.stat('./tests/data/dirty.png').st_size
with open('./tests/data/dirty.png', 'rb') as f:
zout.addfile(tarinfo, f)
p, mimetype = parser_factory.get_parser('./tests/data/clean.tar')
self.assertEqual(mimetype, 'application/x-tar')
meta = p.get_meta()
self.assertEqual(meta['./tests/data/dirty.flac']['comments'],
'Thank you for using MAT !')
self.assertEqual(
meta['./tests/data/dirty.docx']['word/media/image1.png']
['Comment'], 'This is a comment, be careful!')
self.assertFalse(p.remove_all())
os.remove('./tests/data/clean.tar')
shutil.copy('./tests/data/dirty.png', './tests/data/clean.tar')
with self.assertRaises(ValueError):
archive.TarParser('./tests/data/clean.tar')
os.remove('./tests/data/clean.tar')
def test_zip(self):
with zipfile.ZipFile('./tests/data/dirty.zip', 'w') as zout:
zout.write('./tests/data/dirty.flac',
compress_type=zipfile.ZIP_STORED)
zout.write('./tests/data/dirty.docx',
compress_type=zipfile.ZIP_DEFLATED)
zout.write('./tests/data/dirty.jpg',
compress_type=zipfile.ZIP_BZIP2)
zout.write('./tests/data/dirty.txt',
compress_type=zipfile.ZIP_LZMA)
p, mimetype = parser_factory.get_parser('./tests/data/dirty.zip')
self.assertEqual(mimetype, 'application/zip')
meta = p.get_meta()
self.assertEqual(meta['tests/data/dirty.flac']['comments'],
'Thank you for using MAT !')
self.assertEqual(
meta['tests/data/dirty.docx']['word/media/image1.png']['Comment'],
'This is a comment, be careful!')
with zipfile.ZipFile('./tests/data/dirty.zip') as zipin:
members = {
'tests/data/dirty.flac': zipfile.ZIP_STORED,
'tests/data/dirty.docx': zipfile.ZIP_DEFLATED,
'tests/data/dirty.jpg': zipfile.ZIP_BZIP2,
'tests/data/dirty.txt': zipfile.ZIP_LZMA,
}
for k, v in members.items():
self.assertEqual(zipin.getinfo(k).compress_type, v)
os.remove('./tests/data/dirty.zip')
def test_tar(self):
with tarfile.TarFile.open('./tests/data/clean.tar', 'w') as zout:
zout.add('./tests/data/dirty.flac')
zout.add('./tests/data/dirty.docx')
zout.add('./tests/data/dirty.jpg')
zout.add('./tests/data/embedded_corrupted.docx')
tarinfo = tarfile.TarInfo(name='./tests/data/dirty.png')
tarinfo.mtime = time.time()
tarinfo.uid = 1337
tarinfo.gid = 1338
tarinfo.size = os.stat('./tests/data/dirty.png').st_size
with open('./tests/data/dirty.png', 'rb') as f:
zout.addfile(tarinfo, f)
p, mimetype = parser_factory.get_parser('./tests/data/clean.tar')
self.assertEqual(mimetype, 'application/x-tar')
with self.assertRaises(ValueError):
p.get_meta()
with self.assertRaises(ValueError):
self.assertFalse(p.remove_all())
os.remove('./tests/data/clean.tar')
shutil.copy('./tests/data/dirty.png', './tests/data/clean.tar')
with self.assertRaises(ValueError):
archive.TarParser('./tests/data/clean.tar')
os.remove('./tests/data/clean.tar')
def test_docx(self):
shutil.copy('./tests/data/embedded_corrupted.docx',
'./tests/data/clean.docx')
parser, _ = parser_factory.get_parser('./tests/data/clean.docx')
self.assertFalse(parser.remove_all())
self.assertIsNotNone(parser.get_meta())
os.remove('./tests/data/clean.docx')
def _remove_metadata(fpath) -> Tuple[bool, Optional[str]]:
""" This is a simple wrapper around libmat2, because it's
easier and cleaner this way.
"""
parser, mtype = parser_factory.get_parser(fpath)
if parser is None:
return False, mtype
return parser.remove_all(), mtype
def test_brokensymlink(self):
shutil.copy('./tests/test_libmat2.py', './tests/clean.py')
os.symlink('./tests/clean.py', './tests/SYMLINK')
os.remove('./tests/clean.py')
parser, mimetype = parser_factory.get_parser('./tests/SYMLINK')
self.assertEqual(mimetype, None)
self.assertEqual(parser, None)
os.unlink('./tests/SYMLINK')
def test_tarfile_double_extension_handling(self):
""" Test that our module auto-detection is handling sub-sub-classes """
with tarfile.TarFile.open('./tests/data/dirty.tar.bz2',
'w:bz2') as zout:
zout.add('./tests/data/dirty.jpg')
parser, mimetype = parser_factory.get_parser(
'./tests/data/dirty.tar.bz2')
self.assertEqual(mimetype, 'application/x-tar+bz2')
os.remove('./tests/data/dirty.tar.bz2')
def test_docx(self):
shutil.copy('./tests/data/embedded_corrupted.docx',
'./tests/data/clean.docx')
parser, _ = parser_factory.get_parser('./tests/data/clean.docx')
with self.assertRaises(ValueError):
parser.remove_all()
with self.assertRaises(ValueError):
self.assertIsNotNone(parser.get_meta())
os.remove('./tests/data/clean.docx')
def test_epub(self):
with zipfile.ZipFile('./tests/data/clean.epub', 'w') as zout:
zout.write('./tests/data/dirty.jpg', 'OEBPS/content.opf')
p, mimetype = parser_factory.get_parser('./tests/data/clean.epub')
self.assertEqual(mimetype, 'application/epub+zip')
meta = p.get_meta()
self.assertEqual(meta['OEBPS/content.opf']['OEBPS/content.opf'],
'harmful content')
self.assertFalse(p.remove_all())
os.remove('./tests/data/clean.epub')
def TestOneInput(data):
fdp = atheris.FuzzedDataProvider(data)
extension = fdp.PickValueInList(extensions)
data = fdp.ConsumeBytes(sys.maxsize)
fname = '/tmp/mat2_fuzz' + extension
with open(fname, 'wb') as f:
f.write(data)
try:
p, _ = parser_factory.get_parser(fname)
if p:
p.sandbox = False
p.get_meta()
p.remove_all()
p, _ = parser_factory.get_parser(fname)
p.get_meta()
except ValueError:
pass
os.remove(fname)
def test_zip(self):
with zipfile.ZipFile('./tests/data/clean.zip', 'w') as zout:
zout.write('./tests/data/dirty.flac')
zout.write('./tests/data/dirty.docx')
zout.write('./tests/data/dirty.jpg')
zout.write('./tests/data/embedded_corrupted.docx')
p, mimetype = parser_factory.get_parser('./tests/data/clean.zip')
self.assertEqual(mimetype, 'application/zip')
with self.assertRaises(ValueError):
p.get_meta()
with self.assertRaises(ValueError):
self.assertFalse(p.remove_all())
os.remove('./tests/data/clean.zip')
def test_zip(self):
with zipfile.ZipFile('./tests/data/clean.zip', 'w') as zout:
zout.write('./tests/data/dirty.flac')
zout.write('./tests/data/dirty.docx')
zout.write('./tests/data/dirty.jpg')
zout.write('./tests/data/embedded_corrupted.docx')
p, mimetype = parser_factory.get_parser('./tests/data/clean.zip')
self.assertEqual(mimetype, 'application/zip')
meta = p.get_meta()
self.assertEqual(meta['tests/data/dirty.flac']['comments'], 'Thank you for using MAT !')
self.assertEqual(meta['tests/data/dirty.docx']['word/media/image1.png']['Comment'], 'This is a comment, be careful!')
self.assertFalse(p.remove_all())
os.remove('./tests/data/clean.zip')
def __check_deep_meta(self, p):
tempdir = tempfile.mkdtemp()
zipin = zipfile.ZipFile(p.filename)
zipin.extractall(tempdir)
for subdir, dirs, files in os.walk(tempdir):
for f in files:
complete_path = os.path.join(subdir, f)
inside_p, _ = parser_factory.get_parser(complete_path)
if inside_p is None:
continue
self.assertEqual(inside_p.get_meta(), {})
shutil.rmtree(tempdir)
def test_tar(self):
with tarfile.TarFile('./tests/data/dirty.tar', 'w') as tout:
tout.add('./tests/data/dirty.flac')
tout.add('./tests/data/dirty.docx')
tout.add('./tests/data/dirty.jpg')
p, mimetype = parser_factory.get_parser('./tests/data/dirty.tar')
self.assertEqual(mimetype, 'application/x-tar')
meta = p.get_meta()
self.assertEqual(meta['./tests/data/dirty.flac']['comments'],
'Thank you for using MAT !')
self.assertEqual(
meta['./tests/data/dirty.docx']['word/media/image1.png']
['Comment'], 'This is a comment, be careful!')
os.remove('./tests/data/dirty.tar')
def show_meta(filename: str, sandbox: bool):
if not __check_file(filename):
return
try:
p, mtype = parser_factory.get_parser(filename) # type: ignore
except ValueError as e:
print("[-] something went wrong when processing %s: %s" %
(filename, e))
return
if p is None:
print("[-] %s's format (%s) is not supported" % (filename, mtype))
return
p.sandbox = sandbox
__print_meta(filename, p.get_meta())
def test_epub(self):
p, mimetype = parser_factory.get_parser('./tests/data/dirty.epub')
self.assertEqual(mimetype, 'application/epub+zip')
meta = p.get_meta()
self.assertEqual(meta['OEBPS/content.opf']['dc:creator'],
'Dorothy L. Sayers')
self.assertEqual(
meta['OEBPS/toc.ncx']['dtb:generator'],
'Ebookmaker 0.4.0a5 by Marcello Perathoner <*****@*****.**>'
)
self.assertEqual(
meta[
'OEBPS/@public@vhost@g@gutenberg@html@files@58820@58820-h@[email protected]']
['CreatorTool'], 'Adobe Photoshop CS5 Macintosh')
self.assertEqual(
meta[
'OEBPS/@public@vhost@g@gutenberg@html@files@58820@[email protected]']
['generator'],
'Ebookmaker 0.4.0a5 by Marcello Perathoner <*****@*****.**>'
)
def test_onlymember_tar(self):
with tarfile.open('./tests/data/clean.tar', 'w') as zout:
zout.add('./tests/data/dirty.png')
tarinfo = tarfile.TarInfo('./tests/data/dirty.jpg')
tarinfo.mtime = time.time()
tarinfo.uid = 1337
tarinfo.gid = 0
tarinfo.mode = 0o000
tarinfo.size = os.stat('./tests/data/dirty.jpg').st_size
with open('./tests/data/dirty.jpg', 'rb') as f:
zout.addfile(tarinfo=tarinfo, fileobj=f)
p, mimetype = parser_factory.get_parser('./tests/data/clean.tar')
self.assertEqual(mimetype, 'application/x-tar')
meta = p.get_meta()
self.assertEqual(meta['./tests/data/dirty.jpg']['uid'], '1337')
self.assertTrue(p.remove_all())
p = archive.TarParser('./tests/data/clean.cleaned.tar')
self.assertEqual(p.get_meta(), {})
os.remove('./tests/data/clean.tar')
os.remove('./tests/data/clean.cleaned.tar')
def test_tarbz2(self):
with tarfile.TarFile.open('./tests/data/dirty.tar.bz2',
'w:bz2') as zout:
zout.add('./tests/data/dirty.flac')
zout.add('./tests/data/dirty.docx')
zout.add('./tests/data/dirty.jpg')
p = archive.TarParser('./tests/data/dirty.tar.bz2')
meta = p.get_meta()
self.assertEqual(
meta['./tests/data/dirty.docx']['word/media/image1.png']
['Comment'], 'This is a comment, be careful!')
ret = p.remove_all()
self.assertTrue(ret)
p = archive.TarParser('./tests/data/dirty.cleaned.tar.bz2')
self.assertEqual(p.get_meta(), {})
self.assertTrue(p.remove_all())
tmp_dir = tempfile.mkdtemp()
with tarfile.open('./tests/data/dirty.cleaned.tar.bz2') as zout:
zout.extractall(path=tmp_dir)
zout.close()
number_of_files = 0
for root, _, fnames in os.walk(tmp_dir):
for f in fnames:
complete_path = os.path.join(root, f)
p, _ = parser_factory.get_parser(complete_path)
self.assertIsNotNone(p)
self.assertEqual(p.get_meta(), {})
number_of_files += 1
self.assertEqual(number_of_files, 3)
os.remove('./tests/data/dirty.tar.bz2')
os.remove('./tests/data/dirty.cleaned.tar.bz2')
os.remove('./tests/data/dirty.cleaned.cleaned.tar.bz2')
def test_subsubcalss(self):
""" Test that our module auto-detection is handling sub-sub-classes """
parser, mimetype = parser_factory.get_parser('./tests/data/dirty.mp3')
self.assertEqual(mimetype, 'audio/mpeg')
self.assertEqual(parser.__class__, audio.MP3Parser)
def test_gif(self):
p, mimetype = parser_factory.get_parser('./tests/data/dirty.gif')
self.assertEqual(mimetype, 'image/gif')
meta = p.get_meta()
self.assertEqual(meta['Comment'], 'this is a test comment')
def test_wmv(self):
p, mimetype = parser_factory.get_parser('./tests/data/dirty.wmv')
self.assertEqual(mimetype, 'video/x-ms-wmv')
meta = p.get_meta()
self.assertEqual(meta['EncodingSettings'], 'Lavf52.103.0')
def test_txt(self):
p, mimetype = parser_factory.get_parser('./tests/data/dirty.txt')
self.assertEqual(mimetype, 'text/plain')
meta = p.get_meta()
self.assertEqual(meta, {})
def test_inexistingfile(self):
parser, mimetype = parser_factory.get_parser(
'./tests/NONEXISTING_FILE')
self.assertEqual(mimetype, None)
self.assertEqual(parser, None)
def test_pdf(self):
shutil.copy('./tests/test_libmat2.py', './tests/data/clean.py')
parser, mimetype = parser_factory.get_parser('./tests/data/clean.py')
self.assertEqual(mimetype, 'text/x-python')
self.assertEqual(parser, None)
os.remove('./tests/data/clean.py')
def test_chardevice(self):
parser, mimetype = parser_factory.get_parser('/dev/zero')
self.assertEqual(mimetype, None)
self.assertEqual(parser, None)
