def verify(self):
# attempts to verify the piece against
# its hash value. returns boolean of result
# will also set the verified to 1
# check all the blocks if they have been
# downloaded. Once they are all downloaded
if not self.downloaded:
self.verified = False
return False
# check against SHA1 hash.
hash_of_data = Decoder.create_hash(self.extract_data())
#Decoder.print_escaped_hex(hash_of_data, True)
#Decoder.print_escaped_hex(self.hash, True)
# print "checking piece, data: " + str(self.extract_data())
# print "size: " + str(len(self.extract_data()))
# print "hash : " + str(hash_of_data)
# print "hash in list: " + str(self.hash)
if hash_of_data == self.hash:
self.verified = True
return True
else:
self.verified = False
return False
print 'file length (bytes): ' + str(len(file_content))
file_length = len(file_content)
pSize = 100
BlOCK_SIZE = 4
# create file data
file_data = {}
file_data['multi_file'] = False
file_data['file_name'] = file_name
file_data['length'] = len(file_content)
file_data['piece_length'] = pSize
# create the hash_list
hash_list = []
x = 0
while(x < file_length):
hash_list.extend(Decoder.create_hash(file_content[x:x + pSize]))
x = x + pSize
hash_list = ''.join(hash_list)
file_data['pieces_hash'] = hash_list
#
num_of_pieces = int(math.ceil(float(file_length) / pSize))
print 'Number of pieces: ' + str(num_of_pieces)
print 'length of hash_list (length*pSize): ' + str(len(hash_list))
# now start up the PieceManager
pm = PieceManager(file_data)
print "starting Piecemanager...."