def read_png_or_jpeg2000(fobj, start_length, size):
(start, length) = start_length
fobj.seek(start)
sig = fobj.read(12)
if sig[:8] == b"\x89PNG\x0d\x0a\x1a\x0a":
fobj.seek(start)
im = PngImagePlugin.PngImageFile(fobj)
Image._decompression_bomb_check(im.size)
return {"RGBA": im}
elif (
sig[:4] == b"\xff\x4f\xff\x51"
or sig[:4] == b"\x0d\x0a\x87\x0a"
or sig == b"\x00\x00\x00\x0cjP \x0d\x0a\x87\x0a"
):
if not enable_jpeg2k:
raise ValueError(
"Unsupported icon subimage format (rebuild PIL "
"with JPEG 2000 support to fix this)"
)
# j2k, jpc or j2c
fobj.seek(start)
jp2kstream = fobj.read(length)
f = io.BytesIO(jp2kstream)
im = Jpeg2KImagePlugin.Jpeg2KImageFile(f)
Image._decompression_bomb_check(im.size)
if im.mode != "RGBA":
im = im.convert("RGBA")
return {"RGBA": im}
else:
raise ValueError("Unsupported icon subimage format")
def read_png_or_jpeg2000(fobj, start_length, size):
(start, length) = start_length
fobj.seek(start)
sig = fobj.read(12)
if sig[:8] == b'\x89PNG\x0d\x0a\x1a\x0a':
fobj.seek(start)
im = PngImagePlugin.PngImageFile(fobj)
return {"RGBA": im}
elif sig[:4] == b'\xff\x4f\xff\x51' \
or sig[:4] == b'\x0d\x0a\x87\x0a' \
or sig == b'\x00\x00\x00\x0cjP \x0d\x0a\x87\x0a':
if not enable_jpeg2k:
raise ValueError(
'Unsupported icon subimage format (rebuild PIL with JPEG 2000 support to fix this)'
)
# j2k, jpc or j2c
fobj.seek(start)
jp2kstream = fobj.read(length)
f = io.BytesIO(jp2kstream)
im = Jpeg2KImagePlugin.Jpeg2KImageFile(f)
if im.mode != 'RGBA':
im = im.convert('RGBA')
return {"RGBA": im}
else:
raise ValueError('Unsupported icon subimage format')
def test_invalid_file(self):
invalid_file = "Tests/images/flower.jpg"
self.assertRaises(SyntaxError,
lambda:
Jpeg2KImagePlugin.Jpeg2KImageFile(invalid_file))
def test_invalid_file(self):
invalid_file = "Tests/images/flower.jpg"
with pytest.raises(SyntaxError):
Jpeg2KImagePlugin.Jpeg2KImageFile(invalid_file)