def decode(data):
if not pystegcfg.encoding in pystegcfg.encodingopts:
raise ValueError("Encoding [{0}] is invalid. Can only be one of {1}".format(pystegcfg.encoding, pystegcfg.encodingopts))
encMask = mask.extractHaar(data)
encMsg = tb.uint8mask2text(encMask)
# Extract all instances of the encoded message from the encMsg string
encMsgList = encMsg.split(pystegcfg.delim)
# remove any empty array elements
encMsgList = filter(None, encMsgList)
encMsgListCounted = collections.Counter(encMsgList).most_common()
nElem = len(encMsgListCounted)
if(nElem < 1):
raise StegoException.DecodeError("No message to decode")
return encMsgListCounted
def test_text2mask2text(self):
msg = tb.uint8mask2text(tb.text2uint8mask(self.plainText))
self.assertEqual(msg, self.plainText)
def test_uint8mask2text(self):
msg = tb.uint8mask2text(self.uint8Mask)
self.assertEqual(msg, self.plainText)