def _received_store_rpc(self, data_packet):
'''Received store RPC'''
_logger.debug('Store value %s←%s', self.address, data_packet.address)
dict_obj = data_packet.dict_obj
# FIXME: validation
key = KeyBytes(dict_obj[JSONKeys.KEY])
index = KeyBytes(dict_obj[JSONKeys.INDEX])
size = int(dict_obj[JSONKeys.SIZE])
timestamp = int(dict_obj[JSONKeys.TIMESTAMP])
d = self._template_dict()
kvpid = KVPID(key, index)
if self._kvp_table.is_acceptable(kvpid, size, timestamp):
transfer_id = self._network.new_sequence_id()
download_task = self._download_slot.add(
self._network.expect_incoming_transfer, transfer_id,
max_size=DHTNetwork.MAX_VALUE_SIZE,
download_task_class=ReadStoreFromNodeTask)
download_task.key = kvpid.key
download_task.index = kvpid.index
download_task.total_size = size
d[JSONKeys.TRANSFER_ID] = transfer_id
self._network.send_answer_reply(data_packet, d)
_logger.debug('Store value %s←%s begin read', self.address,
data_packet.address)
file = download_task.result()
_logger.debug('Store value %s←%s received data', self.address,
data_packet.address)
data = file.read()
if index.validate_value(data):
self._kvp_table[kvpid] = data
kvp_record = self._kvp_table.record(kvpid)
kvp_record.timestamp = timestamp
kvp_record.last_update = time.time()
kvp_record.time_to_live = self._calculate_expiration_time(key)
else:
self._network.send_answer_reply(data_packet, d)
