async def test_does_not_propagate_invalid_tx(event_bus,
chain_with_block_validation,
tx_validator):
initial_two_peers = TEST_NODES[:2]
node_one = initial_two_peers[0]
node_two = initial_two_peers[1]
async with run_proxy_peer_pool(event_bus) as peer_pool:
outgoing_tx = observe_outgoing_transactions(event_bus)
tx_pool = TxPool(event_bus, peer_pool, tx_validator)
asyncio.ensure_future(tx_pool.run())
run_mock_request_response(GetConnectedPeersRequest,
GetConnectedPeersResponse(initial_two_peers),
event_bus)
await asyncio.sleep(0.01)
txs_broadcasted_by_peer1 = [
create_random_tx(chain_with_block_validation, is_valid=False),
create_random_tx(chain_with_block_validation)
]
# Peer1 sends some txs
await event_bus.broadcast(
TransactionsEvent(session=node_one,
msg=txs_broadcasted_by_peer1,
cmd=Transactions))
await asyncio.sleep(0.01)
# Check that Peer2 received only the second tx which is valid
assert outgoing_tx == [
(node_two, (txs_broadcasted_by_peer1[1], )),
]
class TxComponent(AsyncioIsolatedComponent):
tx_pool: TxPool = None
@property
def name(self) -> str:
return "TxComponent"
@classmethod
def configure_parser(cls, arg_parser: ArgumentParser,
subparser: _SubParsersAction) -> None:
arg_parser.add_argument(
"--disable-tx-pool",
action="store_true",
help="Disables the Transaction Pool",
)
def on_ready(self, manager_eventbus: EndpointAPI) -> None:
light_mode = self.boot_info.args.sync_mode == SYNC_LIGHT
is_disable = self.boot_info.args.disable_tx_pool
is_supported = not light_mode
is_enabled = not is_disable and is_supported
if is_disable:
self.logger.debug("Transaction pool disabled")
elif not is_supported:
self.logger.warning(
"Transaction pool disabled. Not supported in light mode.")
elif is_enabled:
self.start()
else:
raise Exception("This code path should be unreachable")
def do_start(self) -> None:
trinity_config = self.boot_info.trinity_config
db = DBClient.connect(trinity_config.database_ipc_path)
app_config = trinity_config.get_app_config(Eth1AppConfig)
chain_config = app_config.get_chain_config()
chain = chain_config.full_chain_class(db)
if self.boot_info.trinity_config.network_id == MAINNET_NETWORK_ID:
validator = DefaultTransactionValidator(chain,
BYZANTIUM_MAINNET_BLOCK)
elif self.boot_info.trinity_config.network_id == ROPSTEN_NETWORK_ID:
validator = DefaultTransactionValidator(chain,
BYZANTIUM_ROPSTEN_BLOCK)
else:
raise ValueError(
"The TxPool component only supports MainnetChain or RopstenChain"
)
proxy_peer_pool = ETHProxyPeerPool(self.event_bus,
TO_NETWORKING_BROADCAST_CONFIG)
self.tx_pool = TxPool(self.event_bus, proxy_peer_pool, validator)
asyncio.ensure_future(
exit_with_services(self.tx_pool, self._event_bus_service))
asyncio.ensure_future(self.tx_pool.run())
async def do_stop(self) -> None:
# This isn't really needed for the standard shutdown case as the TxPool will automatically
# shutdown whenever the `CancelToken` it was chained with is triggered. It may still be
# useful to stop the TxPool component individually though.
if self.tx_pool.is_operational:
await self.tx_pool.cancel()
self.logger.info("Successfully stopped TxPool")
