JPEG_MARK = (
b"\xff\xd8\xff\xdb\x00C\x00\x08\x06\x06"
b"\x07\x06\x05\x08\x07\x07\x07\t\t\x08\n\x0c\x14\r\x0c\x0b\x0b\x0c\x19\x12\x13\x0f"
)
def test_jpeg2(h, f):
"""JPEG with small header"""
if len(h) >= 32 and h[5] == 67 and h[:32] == JPEG_MARK:
return "jpeg"
def test_jpeg3(h, f):
"""JPEG data in JFIF or Exif format"""
if h[6:10] in (b"JFIF", b"Exif") or h[:2] == b"\xff\xd8":
return "jpeg"
tests.append(test_jpeg1)
tests.append(test_jpeg2)
tests.append(test_jpeg3)
def convert_timestamp_to_datetime(timestamp: int) -> datetime:
if timestamp >= 0:
return datetime.fromtimestamp(timestamp)
else:
return datetime(1970, 1, 1) + timedelta(seconds=int(timestamp))
def monkeypatch_imghdr_bug():
tests.append(test_jpeg1)
tests.append(test_jpeg2)
tests.append(test_jpeg3)
