def peer_requests_piece(self, request=None, peer=None):
if not request or not peer:
logging.error("empty request/peer message")
piece_index, block_offset, block_length = request.piece_index, request.block_offset, request.block_length
block = self.pieces_manager.get_block(piece_index, block_offset, block_length)
if block:
piece = message.Piece(piece_index, block_offset, block_length, block).to_bytes()
peer.send_to_peer(piece)
logging.info("Sent piece index {} to peer : {}".format(request.piece_index, peer.ip))
def parseNonHandshakeMessage(data,sock):
bytestring = data
if (bytestring[0:4] == '\x00\x00\x00\x00'):
# Its a Keep Alive message #
message_obj = message.KeepAlive(response=bytestring)
else:
message_obj = {
0: lambda: message.Choke(response=bytestring),
1: lambda: message.Unchoke(response=bytestring),
2: lambda: message.Interested(response=bytestring),
3: lambda: message.Interested(response=bytestring),
4: lambda: message.Have(response=bytestring),
5: lambda: message.Bitfield(response=bytestring),
6: lambda: message.Request(response=bytestring),
7: lambda: message.Piece(response=bytestring),
8: lambda: message.Cancel(response=bytestring),
9: lambda: message.Port(response=bytestring),
}[ struct.unpack('!b',data[4])[0] ]() # The 5th byte in 'data' is the message type/id
process_message(message_obj,sock)