def on_new_tx(self,
tx: BaseTransaction,
*,
conn: Optional[HathorProtocol] = None,
quiet: bool = False,
fails_silently: bool = True,
propagate_to_peers: bool = True) -> bool:
"""This method is called when any transaction arrive.
If `fails_silently` is False, it may raise either InvalidNewTransaction or TxValidationError.
:return: True if the transaction was accepted
:rtype: bool
"""
assert tx.hash is not None
if self.state != self.NodeState.INITIALIZING:
if self.tx_storage.transaction_exists(tx.hash):
if not fails_silently:
raise InvalidNewTransaction(
'Transaction already exists {}'.format(tx.hash.hex()))
self.log.debug(
'on_new_tx(): Already have transaction {}'.format(
tx.hash.hex()))
return False
try:
assert self.validate_new_tx(tx) is True
except (InvalidNewTransaction, TxValidationError) as e:
# Discard invalid Transaction/block.
self.log.debug('Transaction/Block discarded', tx=tx, exc=e)
if not fails_silently:
raise
return False
if self.state != self.NodeState.INITIALIZING:
self.tx_storage.save_transaction(tx)
else:
tx.reset_metadata()
self.tx_storage._add_to_cache(tx)
try:
tx.update_initial_metadata()
self.consensus_algorithm.update(tx)
except Exception:
pretty_json = json.dumps(tx.to_json(), indent=4)
self.log.error(
'An unexpected error occurred when processing {tx.hash_hex}\n'
'{pretty_json}',
tx=tx,
pretty_json=pretty_json)
self.tx_storage.remove_transaction(tx)
raise
if not quiet:
ts_date = datetime.datetime.fromtimestamp(tx.timestamp)
if tx.is_block:
self.log.info('New block found',
tag='new_block',
tx=tx,
ts_date=ts_date,
time_from_now=tx.get_time_from_now())
else:
self.log.info('New transaction found',
tag='new_tx',
tx=tx,
ts_date=ts_date,
time_from_now=tx.get_time_from_now())
if propagate_to_peers:
# Propagate to our peers.
self.connections.send_tx_to_peers(tx)
if self.wallet:
# TODO Remove it and use pubsub instead.
self.wallet.on_new_tx(tx)
# Publish to pubsub manager the new tx accepted
self.pubsub.publish(HathorEvents.NETWORK_NEW_TX_ACCEPTED, tx=tx)
return True
def on_new_tx(self,
tx: BaseTransaction,
*,
conn: Optional[HathorProtocol] = None,
quiet: bool = False,
fails_silently: bool = True,
propagate_to_peers: bool = True,
skip_block_weight_verification: bool = False) -> bool:
"""This method is called when any transaction arrive.
If `fails_silently` is False, it may raise either InvalidNewTransaction or TxValidationError.
:return: True if the transaction was accepted
:rtype: bool
"""
assert tx.hash is not None
if self.state != self.NodeState.INITIALIZING:
if self.tx_storage.transaction_exists(tx.hash):
if not fails_silently:
raise InvalidNewTransaction(
'Transaction already exists {}'.format(tx.hash_hex))
self.log.debug('on_new_tx(): Transaction already exists',
tx=tx.hash_hex)
return False
if self.state != self.NodeState.INITIALIZING or self._full_verification:
try:
assert self.validate_new_tx(
tx,
skip_block_weight_verification=
skip_block_weight_verification) is True
except (InvalidNewTransaction, TxValidationError):
# Discard invalid Transaction/block.
self.log.debug('tx/block discarded', tx=tx, exc_info=True)
if not fails_silently:
raise
return False
if self.state != self.NodeState.INITIALIZING:
self.tx_storage.save_transaction(tx)
else:
self.tx_storage._add_to_cache(tx)
if self._full_verification:
tx.reset_metadata()
else:
# When doing a fast init, we don't update the consensus, so we must trust the data on the metadata
# For transactions, we don't store them on the tips index if they are voided
# We have to execute _add_to_cache before because _del_from_cache does not remove from all indexes
metadata = tx.get_metadata()
if not tx.is_block and metadata.voided_by:
self.tx_storage._del_from_cache(tx)
if self.state != self.NodeState.INITIALIZING or self._full_verification:
try:
tx.update_initial_metadata()
self.consensus_algorithm.update(tx)
except Exception:
self.log.exception('unexpected error when processing tx',
tx=tx)
self.tx_storage.remove_transaction(tx)
raise
if not quiet:
ts_date = datetime.datetime.fromtimestamp(tx.timestamp)
if tx.is_block:
self.log.info('new block',
tx=tx,
ts_date=ts_date,
time_from_now=tx.get_time_from_now())
else:
self.log.info('new tx',
tx=tx,
ts_date=ts_date,
time_from_now=tx.get_time_from_now())
if propagate_to_peers:
# Propagate to our peers.
self.connections.send_tx_to_peers(tx)
if self.wallet:
# TODO Remove it and use pubsub instead.
self.wallet.on_new_tx(tx)
# Publish to pubsub manager the new tx accepted
self.pubsub.publish(HathorEvents.NETWORK_NEW_TX_ACCEPTED, tx=tx)
return True