def setUp(self):
self.dir = tempfile.mkdtemp()
self.block_db = NativeLmdbDatabase(
os.path.join(self.dir, 'block.lmdb'),
BlockStore.create_index_configuration())
self.block_store = BlockStore(self.block_db)
self.block_manager = BlockManager()
self.block_manager.add_commit_store(self.block_store)
self.gossip = MockGossip()
self.completer = Completer(
block_manager=self.block_manager,
transaction_committed=self.block_store.has_transaction,
get_committed_batch_by_id=self.block_store.get_batch,
get_committed_batch_by_txn_id=(
self.block_store.get_batch_by_transaction),
gossip=self.gossip)
self.completer.set_get_chain_head(lambda: self.block_store.chain_head)
self.completer.set_on_block_received(self._on_block_received)
self.completer.set_on_batch_received(self._on_batch_received)
self._has_block_value = True
context = create_context('secp256k1')
private_key = context.new_random_private_key()
crypto_factory = CryptoFactory(context)
self.signer = crypto_factory.new_signer(private_key)
self.blocks = []
self.batches = []
def setUp(self):
self.block_store = BlockStore(
DictDatabase(indexes=BlockStore.create_index_configuration()))
self.block_manager = BlockManager()
self.block_manager.add_store("commit_store", self.block_store)
self.gossip = MockGossip()
self.completer = Completer(
block_manager=self.block_manager,
transaction_committed=self.block_store.has_transaction,
get_committed_batch_by_id=self.block_store.get_batch,
get_committed_batch_by_txn_id=(
self.block_store.get_batch_by_transaction),
get_chain_head=lambda: self.block_store.chain_head,
gossip=self.gossip)
self.completer.set_on_block_received(self._on_block_received)
self.completer.set_on_batch_received(self._on_batch_received)
self._has_block_value = True
context = create_context('secp256k1')
private_key = context.new_random_private_key()
crypto_factory = CryptoFactory(context)
self.signer = crypto_factory.new_signer(private_key)
self.blocks = []
self.batches = []
def setUp(self):
self.block_store = BlockStore({})
self.gossip = MockGossip()
self.completer = Completer(self.block_store, self.gossip)
self.completer._on_block_received = self._on_block_received
self.completer._on_batch_received = self._on_batch_received
self.private_key = signing.generate_privkey()
self.public_key = signing.generate_pubkey(self.private_key)
self.blocks = []
self.batches = []
def setUp(self):
self.block_store = BlockStore(DictDatabase(
indexes=BlockStore.create_index_configuration()))
self.gossip = MockGossip()
self.completer = Completer(self.block_store, self.gossip)
self.completer._on_block_received = self._on_block_received
self.completer._on_batch_received = self._on_batch_received
self.private_key = signing.generate_private_key()
self.public_key = signing.generate_public_key(self.private_key)
self.blocks = []
self.batches = []
def setUp(self):
self.block_store = BlockStore(
DictDatabase(indexes=BlockStore.create_index_configuration()))
self.gossip = MockGossip()
self.completer = Completer(self.block_store, self.gossip)
self.completer._on_block_received = self._on_block_received
self.completer._on_batch_received = self._on_batch_received
context = create_context('secp256k1')
private_key = context.new_random_private_key()
crypto_factory = CryptoFactory(context)
self.signer = crypto_factory.new_signer(private_key)
self.blocks = []
self.batches = []
def setUp(self):
self.dir = tempfile.mkdtemp()
self.block_db = NativeLmdbDatabase(
os.path.join(self.dir, 'block.lmdb'),
BlockStore.create_index_configuration())
self.block_store = BlockStore(self.block_db)
self.block_manager = BlockManager()
self.block_manager.add_commit_store(self.block_store)
self.gossip = MockGossip()
self.completer = Completer(
block_manager=self.block_manager,
transaction_committed=self.block_store.has_transaction,
get_committed_batch_by_id=self.block_store.get_batch,
get_committed_batch_by_txn_id=(
self.block_store.get_batch_by_transaction
),
get_chain_head=lambda: self.block_store.chain_head,
gossip=self.gossip)
self.completer.set_on_block_received(self._on_block_received)
self.completer.set_on_batch_received(self._on_batch_received)
self._has_block_value = True
context = create_context('secp256k1')
private_key = context.new_random_private_key()
crypto_factory = CryptoFactory(context)
self.signer = crypto_factory.new_signer(private_key)
self.blocks = []
self.batches = []
def setUp(self):
self.block_store = BlockStore({})
self.gossip = MockGossip()
self.completer = Completer(self.block_store, self.gossip)
self.completer._on_block_received = self._on_block_received
self.completer._on_batch_received = self._on_batch_received
self.private_key = signing.generate_privkey()
self.public_key = signing.generate_pubkey(self.private_key)
self.blocks = []
self.batches = []
def setUp(self):
self.block_store = BlockStore(DictDatabase(
indexes=BlockStore.create_index_configuration()))
self.gossip = MockGossip()
self.completer = Completer(self.block_store, self.gossip)
self.completer._on_block_received = self._on_block_received
self.completer._on_batch_received = self._on_batch_received
self.completer._has_block = self._has_block
self._has_block_value = True
context = create_context('secp256k1')
private_key = context.new_random_private_key()
crypto_factory = CryptoFactory(context)
self.signer = crypto_factory.new_signer(private_key)
self.blocks = []
self.batches = []
def __init__(self, network_endpoint, component_endpoint, peer_list,
data_dir, identity_signing_key):
"""Constructs a validator instance.
Args:
network_endpoint (str): the network endpoint
component_endpoint (str): the component endpoint
peer_list (list of str): a list of peer addresses
data_dir (str): path to the data directory
key_dir (str): path to the key directory
"""
db_filename = os.path.join(
data_dir, 'merkle-{}.lmdb'.format(network_endpoint[-2:]))
LOGGER.debug('database file is %s', db_filename)
merkle_db = LMDBNoLockDatabase(db_filename, 'c')
context_manager = ContextManager(merkle_db)
self._context_manager = context_manager
state_view_factory = StateViewFactory(merkle_db)
block_db_filename = os.path.join(
data_dir, 'block-{}.lmdb'.format(network_endpoint[-2:]))
LOGGER.debug('block store file is %s', block_db_filename)
block_db = LMDBNoLockDatabase(block_db_filename, 'c')
block_store = BlockStore(block_db)
# setup network
self._dispatcher = Dispatcher()
thread_pool = ThreadPoolExecutor(max_workers=10)
process_pool = ProcessPoolExecutor(max_workers=3)
self._thread_pool = thread_pool
self._process_pool = process_pool
self._service = Interconnect(component_endpoint,
self._dispatcher,
secured=False,
heartbeat=False,
max_incoming_connections=20)
executor = TransactionExecutor(service=self._service,
context_manager=context_manager,
config_view_factory=ConfigViewFactory(
StateViewFactory(merkle_db)))
self._executor = executor
zmq_identity = hashlib.sha512(
time.time().hex().encode()).hexdigest()[:23]
network_thread_pool = ThreadPoolExecutor(max_workers=10)
self._network_thread_pool = network_thread_pool
self._network_dispatcher = Dispatcher()
# Server public and private keys are hardcoded here due to
# the decision to avoid having separate identities for each
# validator's server socket. This is appropriate for a public
# network. For a permissioned network with requirements for
# server endpoint authentication at the network level, this can
# be augmented with a local lookup service for side-band provided
# endpoint, public_key pairs and a local configuration option
# for 'server' side private keys.
self._network = Interconnect(
network_endpoint,
dispatcher=self._network_dispatcher,
zmq_identity=zmq_identity,
secured=True,
server_public_key=b'wFMwoOt>yFqI/ek.G[tfMMILHWw#vXB[Sv}>l>i)',
server_private_key=b'r&oJ5aQDj4+V]p2:Lz70Eu0x#m%IwzBdP(}&hWM*',
heartbeat=True,
connection_timeout=30,
max_incoming_connections=100)
self._gossip = Gossip(self._network, initial_peer_endpoints=peer_list)
completer = Completer(block_store, self._gossip)
block_sender = BroadcastBlockSender(completer, self._gossip)
batch_sender = BroadcastBatchSender(completer, self._gossip)
chain_id_manager = ChainIdManager(data_dir)
# Create and configure journal
self._journal = Journal(
block_store=block_store,
state_view_factory=StateViewFactory(merkle_db),
block_sender=block_sender,
batch_sender=batch_sender,
transaction_executor=executor,
squash_handler=context_manager.get_squash_handler(),
identity_signing_key=identity_signing_key,
chain_id_manager=chain_id_manager,
data_dir=data_dir,
check_publish_block_frequency=0.1,
block_cache_purge_frequency=30,
block_cache_keep_time=300)
self._genesis_controller = GenesisController(
context_manager=context_manager,
transaction_executor=executor,
completer=completer,
block_store=block_store,
state_view_factory=state_view_factory,
identity_key=identity_signing_key,
data_dir=data_dir,
chain_id_manager=chain_id_manager,
batch_sender=batch_sender)
responder = Responder(completer)
completer.set_on_batch_received(self._journal.on_batch_received)
completer.set_on_block_received(self._journal.on_block_received)
self._dispatcher.add_handler(
validator_pb2.Message.TP_STATE_GET_REQUEST,
tp_state_handlers.TpStateGetHandler(context_manager), thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.TP_STATE_SET_REQUEST,
tp_state_handlers.TpStateSetHandler(context_manager), thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.TP_REGISTER_REQUEST,
processor_handlers.ProcessorRegisterHandler(executor.processors),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.TP_UNREGISTER_REQUEST,
processor_handlers.ProcessorUnRegisterHandler(executor.processors),
thread_pool)
# Set up base network handlers
self._network_dispatcher.add_handler(
validator_pb2.Message.NETWORK_PING, PingHandler(),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.NETWORK_CONNECT,
ConnectHandler(network=self._network), network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.NETWORK_DISCONNECT,
DisconnectHandler(network=self._network), network_thread_pool)
# Set up gossip handlers
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_REGISTER,
PeerRegisterHandler(gossip=self._gossip), network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_UNREGISTER,
PeerUnregisterHandler(gossip=self._gossip), network_thread_pool)
# GOSSIP_MESSAGE 1) Sends acknowledgement to the sender
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE, GossipMessageHandler(),
network_thread_pool)
# GOSSIP_MESSAGE 2) Verifies signature
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
signature_verifier.GossipMessageSignatureVerifier(), process_pool)
# GOSSIP_MESSAGE 3) Determines if we should broadcast the
# message to our peers. It is important that this occur prior
# to the sending of the message to the completer, as this step
# relies on whether the gossip message has previously been
# seen by the validator to determine whether or not forwarding
# should occur
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
GossipBroadcastHandler(gossip=self._gossip, completer=completer),
network_thread_pool)
# GOSSIP_MESSAGE 4) Send message to completer
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
CompleterGossipHandler(completer), network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_REQUEST,
BlockResponderHandler(responder, self._gossip),
network_thread_pool)
# GOSSIP_BLOCK_RESPONSE 1) Sends ack to the sender
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_RESPONSE,
GossipBlockResponseHandler(), network_thread_pool)
# GOSSIP_BLOCK_RESPONSE 2) Verifies signature
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_RESPONSE,
signature_verifier.GossipBlockResponseSignatureVerifier(),
process_pool)
# GOSSIP_BLOCK_RESPONSE 3) Send message to completer
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_RESPONSE,
CompleterGossipBlockResponseHandler(completer),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_BY_BATCH_ID_REQUEST,
BatchByBatchIdResponderHandler(responder, self._gossip),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_BY_TRANSACTION_ID_REQUEST,
BatchByTransactionIdResponderHandler(responder, self._gossip),
network_thread_pool)
# GOSSIP_BATCH_RESPONSE 1) Sends ack to the sender
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_RESPONSE,
GossipBatchResponseHandler(), network_thread_pool)
# GOSSIP_BATCH_RESPONSE 2) Verifies signature
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_RESPONSE,
signature_verifier.GossipBatchResponseSignatureVerifier(),
process_pool)
# GOSSIP_BATCH_RESPONSE 3) Send message to completer
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_RESPONSE,
CompleterGossipBatchResponseHandler(completer),
network_thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
signature_verifier.BatchListSignatureVerifier(), process_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
CompleterBatchListBroadcastHandler(completer, self._gossip),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
client_handlers.BatchSubmitFinisher(
self._journal.get_block_store(), completer.batch_cache),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_STATUS_REQUEST,
client_handlers.BatchStatusRequest(self._journal.get_block_store(),
completer.batch_cache),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_LIST_REQUEST,
client_handlers.StateListRequest(merkle_db,
self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_GET_REQUEST,
client_handlers.StateGetRequest(merkle_db,
self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BLOCK_LIST_REQUEST,
client_handlers.BlockListRequest(self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BLOCK_GET_REQUEST,
client_handlers.BlockGetRequest(self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_LIST_REQUEST,
client_handlers.BatchListRequest(self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_GET_REQUEST,
client_handlers.BatchGetRequest(self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_CURRENT_REQUEST,
client_handlers.StateCurrentRequest(
self._journal.get_current_root), thread_pool)
def __init__(self, network_endpoint, component_endpoint, peer_list,
data_dir):
"""Constructs a validator instance.
Args:
network_endpoint (str): the network endpoint
component_endpoint (str): the component endpoint
peer_list (list of str): a list of peer addresses
data_dir (str): path to the data directory
"""
db_filename = os.path.join(
data_dir, 'merkle-{}.lmdb'.format(network_endpoint[-2:]))
LOGGER.debug('database file is %s', db_filename)
lmdb = LMDBNoLockDatabase(db_filename, 'n')
context_manager = ContextManager(lmdb)
block_db_filename = os.path.join(data_dir, 'block.lmdb')
LOGGER.debug('block store file is %s', block_db_filename)
# block_store = LMDBNoLockDatabase(block_db_filename, 'n')
block_store = {}
# this is not currently being used but will be something like this
# in the future, when Journal takes a block_store that isn't a dict
# setup network
self._dispatcher = Dispatcher()
completer = Completer(block_store)
thread_pool = ThreadPoolExecutor(max_workers=10)
process_pool = ProcessPoolExecutor(max_workers=3)
self._dispatcher.add_handler(
validator_pb2.Message.TP_STATE_GET_REQUEST,
tp_state_handlers.TpStateGetHandler(context_manager), thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.TP_STATE_SET_REQUEST,
tp_state_handlers.TpStateSetHandler(context_manager), thread_pool)
self._service = Interconnect(component_endpoint,
self._dispatcher,
secured=False)
executor = TransactionExecutor(self._service, context_manager)
self._dispatcher.add_handler(
validator_pb2.Message.TP_REGISTER_REQUEST,
ProcessorRegisterHandler(executor.processors), thread_pool)
identity = hashlib.sha512(time.time().hex().encode()).hexdigest()[:23]
network_thread_pool = ThreadPoolExecutor(max_workers=10)
self._network_dispatcher = Dispatcher()
# Server public and private keys are hardcoded here due to
# the decision to avoid having separate identities for each
# validator's server socket. This is appropriate for a public
# network. For a permissioned network with requirements for
# server endpoint authentication at the network level, this can
# be augmented with a local lookup service for side-band provided
# endpoint, public_key pairs and a local configuration option
# for 'server' side private keys.
self._network = Interconnect(
network_endpoint,
dispatcher=self._network_dispatcher,
identity=identity,
peer_connections=peer_list,
secured=True,
server_public_key=b'wFMwoOt>yFqI/ek.G[tfMMILHWw#vXB[Sv}>l>i)',
server_private_key=b'r&oJ5aQDj4+V]p2:Lz70Eu0x#m%IwzBdP(}&hWM*')
self._gossip = Gossip(self._network)
block_sender = BroadcastBlockSender(completer, self._gossip)
self._network_dispatcher.add_handler(validator_pb2.Message.GOSSIP_PING,
PingHandler(),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_REGISTER, PeerRegisterHandler(),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_UNREGISTER, PeerUnregisterHandler(),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE, GossipMessageHandler(),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
signature_verifier.GossipMessageSignatureVerifier(), process_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
GossipBroadcastHandler(gossip=self._gossip), network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
CompleterGossipHandler(completer), network_thread_pool)
# Create and configure journal
self._journal = Journal(
consensus=dev_mode_consensus,
block_store=block_store,
block_sender=block_sender,
transaction_executor=executor,
squash_handler=context_manager.get_squash_handler())
self._genesis_controller = GenesisController(
context_manager=context_manager,
transaction_executor=executor,
completer=completer,
block_store=block_store,
data_dir=data_dir)
completer.set_on_batch_received(self._journal.on_batch_received)
completer.set_on_block_received(self._journal.on_block_received)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
signature_verifier.BatchListSignatureVerifier(), process_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
CompleterBatchListBroadcastHandler(completer, self._gossip),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_LIST_REQUEST,
client_handlers.StateListRequest(lmdb,
self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_GET_REQUEST,
client_handlers.StateGetRequest(lmdb,
self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BLOCK_GET_REQUEST,
client_handlers.BlockGetRequest(self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BLOCK_LIST_REQUEST,
client_handlers.BlockListRequest(self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_CURRENT_REQUEST,
client_handlers.StateCurrentRequest(
self._journal.get_current_root), thread_pool)
def __init__(self, network_endpoint, component_endpoint, peer_list):
data_dir = os.path.expanduser('~')
db_filename = os.path.join(data_dir,
'merkle-{}.lmdb'.format(
network_endpoint[-2:]))
LOGGER.debug('database file is %s', db_filename)
lmdb = LMDBNoLockDatabase(db_filename, 'n')
context_manager = ContextManager(lmdb)
block_db_filename = os.path.join(data_dir, 'block.lmdb')
LOGGER.debug('block store file is %s', block_db_filename)
block_store = {}
# block_store = LMDBNoLockDatabase(block_db_filename, 'n')
# this is not currently being used but will be something like this
# in the future, when Journal takes a block_store that isn't a dict
# setup network
self._dispatcher = Dispatcher()
completer = Completer()
thread_pool = ThreadPoolExecutor(max_workers=10)
process_pool = ProcessPoolExecutor(max_workers=3)
self._dispatcher.add_handler(
validator_pb2.Message.TP_STATE_GET_REQUEST,
tp_state_handlers.TpStateGetHandler(context_manager),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.TP_STATE_SET_REQUEST,
tp_state_handlers.TpStateSetHandler(context_manager),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_GET_REQUEST,
client_handlers.StateGetRequestHandler(lmdb),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_LIST_REQUEST,
client_handlers.StateListRequestHandler(lmdb),
thread_pool)
self._service = Interconnect(component_endpoint, self._dispatcher)
executor = TransactionExecutor(self._service, context_manager)
self._dispatcher.add_handler(
validator_pb2.Message.TP_REGISTER_REQUEST,
ProcessorRegisterHandler(executor.processors),
thread_pool)
identity = hashlib.sha512(
time.time().hex().encode()).hexdigest()[:23]
network_thread_pool = ThreadPoolExecutor(max_workers=10)
self._network_dispatcher = Dispatcher()
self._network = Interconnect(
network_endpoint,
dispatcher=self._network_dispatcher,
identity=identity,
peer_connections=peer_list)
self._gossip = Gossip(self._network)
block_sender = BroadcastBlockSender(completer, self._gossip)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_PING,
PingHandler(),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_REGISTER,
PeerRegisterHandler(),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_UNREGISTER,
PeerUnregisterHandler(),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
GossipMessageHandler(),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
signature_verifier.GossipMessageSignatureVerifier(),
process_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
GossipBroadcastHandler(
gossip=self._gossip),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
CompleterGossipHandler(
completer),
network_thread_pool)
# Create and configure journal
self._journal = Journal(
consensus=dev_mode_consensus,
block_store=block_store,
block_sender=block_sender,
transaction_executor=executor,
squash_handler=context_manager.get_squash_handler())
self._genesis_controller = GenesisController(
context_manager=context_manager,
transaction_executor=executor,
completer=completer,
block_store=block_store,
data_dir=data_dir
)
completer.set_on_batch_received(self._journal.on_batch_received)
completer.set_on_block_received(self._journal.on_block_received)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
signature_verifier.BatchListSignatureVerifier(),
process_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
CompleterBatchListBroadcastHandler(
completer, self._gossip),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_GET_REQUEST,
client_handlers.StateGetRequestHandler(lmdb),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_LIST_REQUEST,
client_handlers.StateListRequestHandler(lmdb),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BLOCK_GET_REQUEST,
client_handlers.BlockGetRequestHandler(
self._journal.get_block_store()), thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BLOCK_LIST_REQUEST,
client_handlers.BlockListRequestHandler(
self._journal.get_block_store()), thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_CURRENT_REQUEST,
client_handlers.StateCurrentRequestHandler(
self._journal.get_current_root), thread_pool)
def __init__(self, bind_network, bind_component, endpoint,
peering, seeds_list, peer_list, data_dir, config_dir,
identity_signing_key, scheduler_type,
network_public_key=None,
network_private_key=None):
"""Constructs a validator instance.
Args:
bind_network (str): the network endpoint
bind_component (str): the component endpoint
endpoint (str): the zmq-style URI of this validator's
publically reachable endpoint
peering (str): The type of peering approach. Either 'static'
or 'dynamic'. In 'static' mode, no attempted topology
buildout occurs -- the validator only attempts to initiate
peering connections with endpoints specified in the
peer_list. In 'dynamic' mode, the validator will first
attempt to initiate peering connections with endpoints
specified in the peer_list and then attempt to do a
topology buildout starting with peer lists obtained from
endpoints in the seeds_list. In either mode, the validator
will accept incoming peer requests up to max_peers.
seeds_list (list of str): a list of addresses to connect
to in order to perform the initial topology buildout
peer_list (list of str): a list of peer addresses
data_dir (str): path to the data directory
config_dir (str): path to the config directory
identity_signing_key (str): key validator uses for signing
"""
db_filename = os.path.join(data_dir,
'merkle-{}.lmdb'.format(
bind_network[-2:]))
LOGGER.debug('database file is %s', db_filename)
merkle_db = LMDBNoLockDatabase(db_filename, 'c')
delta_db_filename = os.path.join(data_dir,
'state-deltas-{}.lmdb'.format(
bind_network[-2:]))
LOGGER.debug('state delta store file is %s', delta_db_filename)
state_delta_db = LMDBNoLockDatabase(delta_db_filename, 'c')
state_delta_store = StateDeltaStore(state_delta_db)
context_manager = ContextManager(merkle_db, state_delta_store)
self._context_manager = context_manager
state_view_factory = StateViewFactory(merkle_db)
block_db_filename = os.path.join(data_dir, 'block-{}.lmdb'.format(
bind_network[-2:]))
LOGGER.debug('block store file is %s', block_db_filename)
block_db = LMDBNoLockDatabase(block_db_filename, 'c')
block_store = BlockStore(block_db)
batch_tracker = BatchTracker(block_store)
block_store.add_update_observer(batch_tracker)
# setup network
self._dispatcher = Dispatcher()
thread_pool = ThreadPoolExecutor(max_workers=10)
sig_pool = ThreadPoolExecutor(max_workers=3)
self._thread_pool = thread_pool
self._sig_pool = sig_pool
self._service = Interconnect(bind_component,
self._dispatcher,
secured=False,
heartbeat=False,
max_incoming_connections=20,
monitor=True)
config_file = os.path.join(config_dir, "validator.toml")
validator_config = {}
if os.path.exists(config_file):
with open(config_file) as fd:
raw_config = fd.read()
validator_config = toml.loads(raw_config)
if scheduler_type is None:
scheduler_type = validator_config.get("scheduler", "serial")
executor = TransactionExecutor(
service=self._service,
context_manager=context_manager,
settings_view_factory=SettingsViewFactory(
StateViewFactory(merkle_db)),
scheduler_type=scheduler_type,
invalid_observers=[batch_tracker])
self._executor = executor
self._service.set_check_connections(executor.check_connections)
state_delta_processor = StateDeltaProcessor(self._service,
state_delta_store,
block_store)
zmq_identity = hashlib.sha512(
time.time().hex().encode()).hexdigest()[:23]
network_thread_pool = ThreadPoolExecutor(max_workers=10)
self._network_thread_pool = network_thread_pool
self._network_dispatcher = Dispatcher()
secure = False
if network_public_key is not None and network_private_key is not None:
secure = True
self._network = Interconnect(
bind_network,
dispatcher=self._network_dispatcher,
zmq_identity=zmq_identity,
secured=secure,
server_public_key=network_public_key,
server_private_key=network_private_key,
heartbeat=True,
public_endpoint=endpoint,
connection_timeout=30,
max_incoming_connections=100)
self._gossip = Gossip(self._network,
endpoint=endpoint,
peering_mode=peering,
initial_seed_endpoints=seeds_list,
initial_peer_endpoints=peer_list,
minimum_peer_connectivity=3,
maximum_peer_connectivity=10,
topology_check_frequency=1)
completer = Completer(block_store, self._gossip)
block_sender = BroadcastBlockSender(completer, self._gossip)
batch_sender = BroadcastBatchSender(completer, self._gossip)
chain_id_manager = ChainIdManager(data_dir)
# Create and configure journal
self._journal = Journal(
block_store=block_store,
state_view_factory=StateViewFactory(merkle_db),
block_sender=block_sender,
batch_sender=batch_sender,
transaction_executor=executor,
squash_handler=context_manager.get_squash_handler(),
identity_signing_key=identity_signing_key,
chain_id_manager=chain_id_manager,
state_delta_processor=state_delta_processor,
data_dir=data_dir,
config_dir=config_dir,
check_publish_block_frequency=0.1,
block_cache_purge_frequency=30,
block_cache_keep_time=300,
batch_observers=[batch_tracker]
)
self._genesis_controller = GenesisController(
context_manager=context_manager,
transaction_executor=executor,
completer=completer,
block_store=block_store,
state_view_factory=state_view_factory,
identity_key=identity_signing_key,
data_dir=data_dir,
config_dir=config_dir,
chain_id_manager=chain_id_manager,
batch_sender=batch_sender
)
responder = Responder(completer)
completer.set_on_batch_received(self._journal.on_batch_received)
completer.set_on_block_received(self._journal.on_block_received)
self._dispatcher.add_handler(
validator_pb2.Message.TP_STATE_GET_REQUEST,
tp_state_handlers.TpStateGetHandler(context_manager),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.TP_STATE_SET_REQUEST,
tp_state_handlers.TpStateSetHandler(context_manager),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.TP_REGISTER_REQUEST,
processor_handlers.ProcessorRegisterHandler(executor.processors),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.TP_UNREGISTER_REQUEST,
processor_handlers.ProcessorUnRegisterHandler(executor.processors),
thread_pool)
# Set up base network handlers
self._network_dispatcher.add_handler(
validator_pb2.Message.NETWORK_PING,
PingHandler(),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.NETWORK_CONNECT,
ConnectHandler(network=self._network),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.NETWORK_DISCONNECT,
DisconnectHandler(network=self._network),
network_thread_pool)
# Set up gossip handlers
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_GET_PEERS_REQUEST,
GetPeersRequestHandler(gossip=self._gossip),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_GET_PEERS_RESPONSE,
GetPeersResponseHandler(gossip=self._gossip),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_REGISTER,
PeerRegisterHandler(gossip=self._gossip),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_UNREGISTER,
PeerUnregisterHandler(gossip=self._gossip),
network_thread_pool)
# GOSSIP_MESSAGE 1) Sends acknowledgement to the sender
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
GossipMessageHandler(),
network_thread_pool)
# GOSSIP_MESSAGE 2) Verifies signature
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
signature_verifier.GossipMessageSignatureVerifier(),
sig_pool)
# GOSSIP_MESSAGE 3) Verifies batch structure
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
structure_verifier.GossipHandlerStructureVerifier(),
network_thread_pool)
# GOSSIP_MESSAGE 4) Determines if we should broadcast the
# message to our peers. It is important that this occur prior
# to the sending of the message to the completer, as this step
# relies on whether the gossip message has previously been
# seen by the validator to determine whether or not forwarding
# should occur
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
GossipBroadcastHandler(
gossip=self._gossip,
completer=completer),
network_thread_pool)
# GOSSIP_MESSAGE 5) Send message to completer
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
CompleterGossipHandler(
completer),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_REQUEST,
BlockResponderHandler(responder, self._gossip),
network_thread_pool)
# GOSSIP_BLOCK_RESPONSE 1) Sends ack to the sender
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_RESPONSE,
GossipBlockResponseHandler(),
network_thread_pool)
# GOSSIP_BLOCK_RESPONSE 2) Verifies signature
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_RESPONSE,
signature_verifier.GossipBlockResponseSignatureVerifier(),
sig_pool)
# GOSSIP_BLOCK_RESPONSE 3) Check batch structure
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_RESPONSE,
structure_verifier.GossipBlockResponseStructureVerifier(),
network_thread_pool)
# GOSSIP_BLOCK_RESPONSE 4) Send message to completer
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_RESPONSE,
CompleterGossipBlockResponseHandler(
completer),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_RESPONSE,
ResponderBlockResponseHandler(responder, self._gossip),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_BY_BATCH_ID_REQUEST,
BatchByBatchIdResponderHandler(responder, self._gossip),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_BY_TRANSACTION_ID_REQUEST,
BatchByTransactionIdResponderHandler(responder, self._gossip),
network_thread_pool)
# GOSSIP_BATCH_RESPONSE 1) Sends ack to the sender
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_RESPONSE,
GossipBatchResponseHandler(),
network_thread_pool)
# GOSSIP_BATCH_RESPONSE 2) Verifies signature
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_RESPONSE,
signature_verifier.GossipBatchResponseSignatureVerifier(),
sig_pool)
# GOSSIP_BATCH_RESPONSE 3) Check batch structure
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_RESPONSE,
structure_verifier.GossipBatchResponseStructureVerifier(),
network_thread_pool)
# GOSSIP_BATCH_RESPONSE 4) Send message to completer
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_RESPONSE,
CompleterGossipBatchResponseHandler(
completer),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_RESPONSE,
ResponderBatchResponseHandler(responder, self._gossip),
network_thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
BatchListPermissionVerifier(
settings_view_factory=SettingsViewFactory(
StateViewFactory(merkle_db)),
current_root_func=self._journal.get_current_root,
),
sig_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
signature_verifier.BatchListSignatureVerifier(),
sig_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
structure_verifier.BatchListStructureVerifier(),
network_thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
CompleterBatchListBroadcastHandler(
completer, self._gossip),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
client_handlers.BatchSubmitFinisher(batch_tracker),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_STATUS_REQUEST,
client_handlers.BatchStatusRequest(batch_tracker),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_LIST_REQUEST,
client_handlers.StateListRequest(
merkle_db,
self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_GET_REQUEST,
client_handlers.StateGetRequest(
merkle_db,
self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BLOCK_LIST_REQUEST,
client_handlers.BlockListRequest(self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BLOCK_GET_REQUEST,
client_handlers.BlockGetRequest(self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_LIST_REQUEST,
client_handlers.BatchListRequest(self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_GET_REQUEST,
client_handlers.BatchGetRequest(self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_TRANSACTION_LIST_REQUEST,
client_handlers.TransactionListRequest(
self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_TRANSACTION_GET_REQUEST,
client_handlers.TransactionGetRequest(
self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_CURRENT_REQUEST,
client_handlers.StateCurrentRequest(
self._journal.get_current_root), thread_pool)
# State Delta Subscription Handlers
self._dispatcher.add_handler(
validator_pb2.Message.STATE_DELTA_SUBSCRIBE_REQUEST,
StateDeltaSubscriberValidationHandler(state_delta_processor),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.STATE_DELTA_SUBSCRIBE_REQUEST,
StateDeltaAddSubscriberHandler(state_delta_processor),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.STATE_DELTA_UNSUBSCRIBE_REQUEST,
StateDeltaUnsubscriberHandler(state_delta_processor),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.STATE_DELTA_GET_EVENTS_REQUEST,
StateDeltaGetEventsHandler(block_store, state_delta_store),
thread_pool)
class TestCompleter():
def __init__(self):
self.block_store = BlockStore(
DictDatabase(indexes=BlockStore.create_index_configuration()))
self.gossip = MockGossip()
self.completer = Completer(self.block_store, self.gossip)
self.completer._on_block_received = self._on_block_received
self.completer._on_batch_received = self._on_batch_received
self.completer._has_block = self._has_block
self._has_block_value = True
context = create_context('secp256k1')
private_key = context.new_random_private_key()
crypto_factory = CryptoFactory(context)
self.signer = crypto_factory.new_signer(private_key)
self.blocks = []
self.batches = []
def _on_block_received(self, block):
return self.blocks.append(block.header_signature)
def _on_batch_received(self, batch):
return self.batches.append(batch.header_signature)
def _has_block(self, batch):
return self._has_block_value
def _create_transactions(self, count, missing_dep=False):
txn_list = []
for _ in range(count):
payload = {
'Verb': 'set',
'Name': 'name' + str(random.randint(0, 100)),
'Value': random.randint(0, 100)
}
intkey_prefix = \
hashlib.sha512('intkey'.encode('utf-8')).hexdigest()[0:6]
addr = intkey_prefix + \
hashlib.sha512(payload["Name"].encode('utf-8')).hexdigest()
payload_encode = hashlib.sha512(cbor.dumps(payload)).hexdigest()
header = TransactionHeader(
signer_public_key=self.signer.get_public_key().as_hex(),
family_name='intkey',
family_version='1.0',
inputs=[addr],
outputs=[addr],
dependencies=[],
batcher_public_key=self.signer.get_public_key().as_hex(),
payload_sha512=payload_encode)
if missing_dep:
header.dependencies.extend(["Missing"])
header_bytes = header.SerializeToString()
signature = self.signer.sign(header_bytes)
transaction = Transaction(header=header_bytes,
payload=cbor.dumps(payload),
header_signature=signature)
txn_list.append(transaction)
return txn_list
def _create_batches(self, batch_count, txn_count, missing_dep=False):
batch_list = []
for _ in range(batch_count):
txn_list = self._create_transactions(txn_count,
missing_dep=missing_dep)
txn_sig_list = [txn.header_signature for txn in txn_list]
batch_header = BatchHeader(
signer_public_key=self.signer.get_public_key().as_hex())
batch_header.transaction_ids.extend(txn_sig_list)
header_bytes = batch_header.SerializeToString()
signature = self.signer.sign(header_bytes)
batch = Batch(header=header_bytes,
transactions=txn_list,
header_signature=signature)
batch_list.append(batch)
return batch_list
def _create_blocks(self,
block_count,
batch_count,
missing_predecessor=False,
missing_batch=False,
find_batch=True):
block_list = []
for i in range(0, block_count):
batch_list = self._create_batches(batch_count, 2)
batch_ids = [batch.header_signature for batch in batch_list]
if missing_predecessor:
predecessor = "Missing"
else:
predecessor = (block_list[i - 1].header_signature
if i > 0 else NULL_BLOCK_IDENTIFIER)
block_header = BlockHeader(
signer_public_key=self.signer.get_public_key().as_hex(),
batch_ids=batch_ids,
block_num=i,
previous_block_id=predecessor)
header_bytes = block_header.SerializeToString()
signature = self.signer.sign(header_bytes)
if missing_batch:
if find_batch:
self.completer.add_batch(batch_list[-1])
batch_list = batch_list[:-1]
block = Block(header=header_bytes,
batches=batch_list,
header_signature=signature)
block_list.append(block)
return block_list
def __init__(self,
bind_network,
bind_component,
bind_consensus,
endpoint,
peering,
seeds_list,
peer_list,
data_dir,
config_dir,
identity_signer,
scheduler_type,
permissions,
minimum_peer_connectivity,
maximum_peer_connectivity,
state_pruning_block_depth,
fork_cache_keep_time,
network_public_key=None,
network_private_key=None,
roles=None,
component_thread_pool_workers=10,
network_thread_pool_workers=10,
signature_thread_pool_workers=3):
"""Constructs a validator instance.
Args:
bind_network (str): the network endpoint
bind_component (str): the component endpoint
endpoint (str): the zmq-style URI of this validator's
publically reachable endpoint
peering (str): The type of peering approach. Either 'static'
or 'dynamic'. In 'static' mode, no attempted topology
buildout occurs -- the validator only attempts to initiate
peering connections with endpoints specified in the
peer_list. In 'dynamic' mode, the validator will first
attempt to initiate peering connections with endpoints
specified in the peer_list and then attempt to do a
topology buildout starting with peer lists obtained from
endpoints in the seeds_list. In either mode, the validator
will accept incoming peer requests up to max_peers.
seeds_list (list of str): a list of addresses to connect
to in order to perform the initial topology buildout
peer_list (list of str): a list of peer addresses
data_dir (str): path to the data directory
config_dir (str): path to the config directory
identity_signer (str): cryptographic signer the validator uses for
signing
component_thread_pool_workers (int): number of workers in the
component thread pool; defaults to 10.
network_thread_pool_workers (int): number of workers in the network
thread pool; defaults to 10.
signature_thread_pool_workers (int): number of workers in the
signature thread pool; defaults to 3.
"""
# -- Setup Global State Database and Factory -- #
global_state_db_filename = os.path.join(
data_dir, 'merkle-{}.lmdb'.format(bind_network[-2:]))
LOGGER.debug(
'global state database file is %s', global_state_db_filename)
global_state_db = NativeLmdbDatabase(
global_state_db_filename,
indexes=MerkleDatabase.create_index_configuration())
state_view_factory = StateViewFactory(global_state_db)
native_state_view_factory = NativeStateViewFactory(global_state_db)
# -- Setup Receipt Store -- #
receipt_db_filename = os.path.join(
data_dir, 'txn_receipts-{}.lmdb'.format(bind_network[-2:]))
LOGGER.debug('txn receipt store file is %s', receipt_db_filename)
receipt_db = LMDBNoLockDatabase(receipt_db_filename, 'c')
receipt_store = TransactionReceiptStore(receipt_db)
# -- Setup Block Store -- #
block_db_filename = os.path.join(
data_dir, 'block-{}.lmdb'.format(bind_network[-2:]))
LOGGER.debug('block store file is %s', block_db_filename)
block_db = NativeLmdbDatabase(
block_db_filename,
indexes=BlockStore.create_index_configuration())
block_store = BlockStore(block_db)
# The cache keep time for the journal's block cache must be greater
# than the cache keep time used by the completer.
base_keep_time = 1200
block_manager = BlockManager()
block_manager.add_commit_store(block_store)
block_status_store = BlockValidationResultStore()
# -- Setup Thread Pools -- #
component_thread_pool = InstrumentedThreadPoolExecutor(
max_workers=component_thread_pool_workers,
name='Component')
network_thread_pool = InstrumentedThreadPoolExecutor(
max_workers=network_thread_pool_workers,
name='Network')
client_thread_pool = InstrumentedThreadPoolExecutor(
max_workers=5,
name='Client')
sig_pool = InstrumentedThreadPoolExecutor(
max_workers=signature_thread_pool_workers,
name='Signature')
# -- Setup Dispatchers -- #
component_dispatcher = Dispatcher()
network_dispatcher = Dispatcher()
# -- Setup Services -- #
component_service = Interconnect(
bind_component,
component_dispatcher,
secured=False,
heartbeat=False,
max_incoming_connections=20,
monitor=True,
max_future_callback_workers=10)
zmq_identity = hashlib.sha512(
time.time().hex().encode()).hexdigest()[:23]
secure = False
if network_public_key is not None and network_private_key is not None:
secure = True
network_service = Interconnect(
bind_network,
dispatcher=network_dispatcher,
zmq_identity=zmq_identity,
secured=secure,
server_public_key=network_public_key,
server_private_key=network_private_key,
heartbeat=True,
public_endpoint=endpoint,
connection_timeout=120,
max_incoming_connections=100,
max_future_callback_workers=10,
authorize=True,
signer=identity_signer,
roles=roles)
# -- Setup Transaction Execution Platform -- #
context_manager = ContextManager(global_state_db)
batch_tracker = BatchTracker(block_store.has_batch)
settings_cache = SettingsCache(
SettingsViewFactory(state_view_factory),
)
transaction_executor = TransactionExecutor(
service=component_service,
context_manager=context_manager,
settings_view_factory=SettingsViewFactory(state_view_factory),
scheduler_type=scheduler_type,
invalid_observers=[batch_tracker])
component_service.set_check_connections(
transaction_executor.check_connections)
event_broadcaster = EventBroadcaster(
component_service, block_store, receipt_store)
# -- Consensus Engine -- #
consensus_thread_pool = InstrumentedThreadPoolExecutor(
max_workers=3,
name='Consensus')
consensus_dispatcher = Dispatcher()
consensus_service = Interconnect(
bind_consensus,
consensus_dispatcher,
secured=False,
heartbeat=False,
max_incoming_connections=20,
max_future_callback_workers=10)
consensus_registry = ConsensusRegistry()
consensus_notifier = ConsensusNotifier(
consensus_service,
consensus_registry,
identity_signer.get_public_key().as_hex())
# -- Setup P2P Networking -- #
gossip = Gossip(
network_service,
settings_cache,
lambda: block_store.chain_head,
block_store.chain_head_state_root,
consensus_notifier,
endpoint=endpoint,
peering_mode=peering,
initial_seed_endpoints=seeds_list,
initial_peer_endpoints=peer_list,
minimum_peer_connectivity=minimum_peer_connectivity,
maximum_peer_connectivity=maximum_peer_connectivity,
topology_check_frequency=1
)
consensus_notifier.set_gossip(gossip)
completer = Completer(
block_manager=block_manager,
transaction_committed=block_store.has_transaction,
get_committed_batch_by_id=block_store.get_batch,
get_committed_batch_by_txn_id=(
block_store.get_batch_by_transaction
),
get_chain_head=lambda: unwrap_if_not_none(block_store.chain_head),
gossip=gossip,
cache_keep_time=base_keep_time,
cache_purge_frequency=30,
requested_keep_time=300)
self._completer = completer
block_sender = BroadcastBlockSender(completer, gossip)
batch_sender = BroadcastBatchSender(completer, gossip)
chain_id_manager = ChainIdManager(data_dir)
identity_view_factory = IdentityViewFactory(
StateViewFactory(global_state_db))
id_cache = IdentityCache(identity_view_factory)
# -- Setup Permissioning -- #
permission_verifier = PermissionVerifier(
permissions,
block_store.chain_head_state_root,
id_cache)
identity_observer = IdentityObserver(
to_update=id_cache.invalidate,
forked=id_cache.forked)
settings_observer = SettingsObserver(
to_update=settings_cache.invalidate,
forked=settings_cache.forked)
# -- Setup Journal -- #
batch_injector_factory = DefaultBatchInjectorFactory(
state_view_factory=state_view_factory,
signer=identity_signer)
block_publisher = BlockPublisher(
block_manager=block_manager,
transaction_executor=transaction_executor,
transaction_committed=block_store.has_transaction,
batch_committed=block_store.has_batch,
state_view_factory=native_state_view_factory,
block_sender=block_sender,
batch_sender=batch_sender,
chain_head=block_store.chain_head,
identity_signer=identity_signer,
data_dir=data_dir,
config_dir=config_dir,
permission_verifier=permission_verifier,
batch_observers=[batch_tracker],
batch_injector_factory=batch_injector_factory)
block_validator = BlockValidator(
block_manager=block_manager,
view_factory=native_state_view_factory,
transaction_executor=transaction_executor,
block_status_store=block_status_store,
permission_verifier=permission_verifier)
chain_controller = ChainController(
block_store=block_store,
block_manager=block_manager,
block_validator=block_validator,
state_database=global_state_db,
chain_head_lock=block_publisher.chain_head_lock,
block_status_store=block_status_store,
consensus_notifier=consensus_notifier,
consensus_registry=consensus_registry,
state_pruning_block_depth=state_pruning_block_depth,
fork_cache_keep_time=fork_cache_keep_time,
data_dir=data_dir,
observers=[
event_broadcaster,
receipt_store,
batch_tracker,
identity_observer,
settings_observer
])
genesis_controller = GenesisController(
context_manager=context_manager,
transaction_executor=transaction_executor,
block_manager=block_manager,
block_store=block_store,
state_view_factory=state_view_factory,
identity_signer=identity_signer,
data_dir=data_dir,
config_dir=config_dir,
chain_id_manager=chain_id_manager,
batch_sender=batch_sender,
receipt_store=receipt_store)
responder = Responder(completer)
completer.set_on_block_received(chain_controller.queue_block)
self._incoming_batch_sender = None
# -- Register Message Handler -- #
network_handlers.add(
network_dispatcher, network_service, gossip, completer,
responder, network_thread_pool, sig_pool,
lambda block_id: block_id in block_manager, self.has_batch,
permission_verifier, block_publisher, consensus_notifier)
component_handlers.add(
component_dispatcher, gossip, context_manager,
transaction_executor, completer, block_store, batch_tracker,
global_state_db, self.get_chain_head_state_root_hash,
receipt_store, event_broadcaster, permission_verifier,
component_thread_pool, client_thread_pool,
sig_pool, block_publisher,
identity_signer.get_public_key().as_hex())
# -- Store Object References -- #
self._component_dispatcher = component_dispatcher
self._component_service = component_service
self._component_thread_pool = component_thread_pool
self._network_dispatcher = network_dispatcher
self._network_service = network_service
self._network_thread_pool = network_thread_pool
consensus_proxy = ConsensusProxy(
block_manager=block_manager,
chain_controller=chain_controller,
block_publisher=block_publisher,
gossip=gossip,
identity_signer=identity_signer,
settings_view_factory=SettingsViewFactory(state_view_factory),
state_view_factory=state_view_factory,
consensus_registry=consensus_registry,
consensus_notifier=consensus_notifier)
consensus_handlers.add(
consensus_dispatcher,
consensus_thread_pool,
consensus_proxy,
consensus_notifier)
self._block_status_store = block_status_store
self._consensus_notifier = consensus_notifier
self._consensus_dispatcher = consensus_dispatcher
self._consensus_service = consensus_service
self._consensus_thread_pool = consensus_thread_pool
self._consensus_registry = consensus_registry
self._client_thread_pool = client_thread_pool
self._sig_pool = sig_pool
self._context_manager = context_manager
self._transaction_executor = transaction_executor
self._genesis_controller = genesis_controller
self._gossip = gossip
self._block_publisher = block_publisher
self._block_validator = block_validator
self._chain_controller = chain_controller
self._block_validator = block_validator
def __init__(self, bind_network, bind_component, endpoint,
peering, seeds_list, peer_list, data_dir, config_dir,
identity_signing_key, network_public_key=None,
network_private_key=None):
"""Constructs a validator instance.
Args:
bind_network (str): the network endpoint
bind_component (str): the component endpoint
endpoint (str): the zmq-style URI of this validator's
publically reachable endpoint
peering (str): The type of peering approach. Either 'static'
or 'dynamic'. In 'static' mode, no attempted topology
buildout occurs -- the validator only attempts to initiate
peering connections with endpoints specified in the
peer_list. In 'dynamic' mode, the validator will first
attempt to initiate peering connections with endpoints
specified in the peer_list and then attempt to do a
topology buildout starting with peer lists obtained from
endpoints in the seeds_list. In either mode, the validator
will accept incoming peer requests up to max_peers.
seeds_list (list of str): a list of addresses to connect
to in order to perform the initial topology buildout
peer_list (list of str): a list of peer addresses
data_dir (str): path to the data directory
config_dir (str): path to the config directory
identity_signing_key (str): key validator uses for signing
"""
db_filename = os.path.join(data_dir,
'merkle-{}.lmdb'.format(
bind_network[-2:]))
LOGGER.debug('database file is %s', db_filename)
merkle_db = LMDBNoLockDatabase(db_filename, 'c')
delta_db_filename = os.path.join(data_dir,
'state-deltas-{}.lmdb'.format(
bind_network[-2:]))
LOGGER.debug('state delta store file is %s', delta_db_filename)
state_delta_db = LMDBNoLockDatabase(delta_db_filename, 'c')
state_delta_store = StateDeltaStore(state_delta_db)
context_manager = ContextManager(merkle_db, state_delta_store)
self._context_manager = context_manager
state_view_factory = StateViewFactory(merkle_db)
block_db_filename = os.path.join(data_dir, 'block-{}.lmdb'.format(
bind_network[-2:]))
LOGGER.debug('block store file is %s', block_db_filename)
block_db = LMDBNoLockDatabase(block_db_filename, 'c')
block_store = BlockStore(block_db)
batch_tracker = BatchTracker(block_store)
block_store.add_update_observer(batch_tracker)
# setup network
self._dispatcher = Dispatcher()
thread_pool = ThreadPoolExecutor(max_workers=10)
sig_pool = ThreadPoolExecutor(max_workers=3)
self._thread_pool = thread_pool
self._sig_pool = sig_pool
self._service = Interconnect(bind_component,
self._dispatcher,
secured=False,
heartbeat=False,
max_incoming_connections=20,
monitor=True)
executor = TransactionExecutor(
service=self._service,
context_manager=context_manager,
settings_view_factory=SettingsViewFactory(
StateViewFactory(merkle_db)),
invalid_observers=[batch_tracker])
self._executor = executor
self._service.set_check_connections(executor.check_connections)
state_delta_processor = StateDeltaProcessor(self._service,
state_delta_store,
block_store)
zmq_identity = hashlib.sha512(
time.time().hex().encode()).hexdigest()[:23]
network_thread_pool = ThreadPoolExecutor(max_workers=10)
self._network_thread_pool = network_thread_pool
self._network_dispatcher = Dispatcher()
secure = False
if network_public_key is not None and network_private_key is not None:
secure = True
self._network = Interconnect(
bind_network,
dispatcher=self._network_dispatcher,
zmq_identity=zmq_identity,
secured=secure,
server_public_key=network_public_key,
server_private_key=network_private_key,
heartbeat=True,
public_endpoint=endpoint,
connection_timeout=30,
max_incoming_connections=100)
self._gossip = Gossip(self._network,
endpoint=endpoint,
peering_mode=peering,
initial_seed_endpoints=seeds_list,
initial_peer_endpoints=peer_list,
minimum_peer_connectivity=3,
maximum_peer_connectivity=10,
topology_check_frequency=1)
completer = Completer(block_store, self._gossip)
block_sender = BroadcastBlockSender(completer, self._gossip)
batch_sender = BroadcastBatchSender(completer, self._gossip)
chain_id_manager = ChainIdManager(data_dir)
# Create and configure journal
self._journal = Journal(
block_store=block_store,
state_view_factory=StateViewFactory(merkle_db),
block_sender=block_sender,
batch_sender=batch_sender,
transaction_executor=executor,
squash_handler=context_manager.get_squash_handler(),
identity_signing_key=identity_signing_key,
chain_id_manager=chain_id_manager,
state_delta_processor=state_delta_processor,
data_dir=data_dir,
config_dir=config_dir,
check_publish_block_frequency=0.1,
block_cache_purge_frequency=30,
block_cache_keep_time=300,
batch_observers=[batch_tracker]
)
self._genesis_controller = GenesisController(
context_manager=context_manager,
transaction_executor=executor,
completer=completer,
block_store=block_store,
state_view_factory=state_view_factory,
identity_key=identity_signing_key,
data_dir=data_dir,
config_dir=config_dir,
chain_id_manager=chain_id_manager,
batch_sender=batch_sender
)
responder = Responder(completer)
completer.set_on_batch_received(self._journal.on_batch_received)
completer.set_on_block_received(self._journal.on_block_received)
self._dispatcher.add_handler(
validator_pb2.Message.TP_STATE_GET_REQUEST,
tp_state_handlers.TpStateGetHandler(context_manager),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.TP_STATE_SET_REQUEST,
tp_state_handlers.TpStateSetHandler(context_manager),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.TP_REGISTER_REQUEST,
processor_handlers.ProcessorRegisterHandler(executor.processors),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.TP_UNREGISTER_REQUEST,
processor_handlers.ProcessorUnRegisterHandler(executor.processors),
thread_pool)
# Set up base network handlers
self._network_dispatcher.add_handler(
validator_pb2.Message.NETWORK_PING,
PingHandler(),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.NETWORK_CONNECT,
ConnectHandler(network=self._network),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.NETWORK_DISCONNECT,
DisconnectHandler(network=self._network),
network_thread_pool)
# Set up gossip handlers
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_GET_PEERS_REQUEST,
GetPeersRequestHandler(gossip=self._gossip),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_GET_PEERS_RESPONSE,
GetPeersResponseHandler(gossip=self._gossip),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_REGISTER,
PeerRegisterHandler(gossip=self._gossip),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_UNREGISTER,
PeerUnregisterHandler(gossip=self._gossip),
network_thread_pool)
# GOSSIP_MESSAGE 1) Sends acknowledgement to the sender
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
GossipMessageHandler(),
network_thread_pool)
# GOSSIP_MESSAGE 2) Verifies signature
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
signature_verifier.GossipMessageSignatureVerifier(),
sig_pool)
# GOSSIP_MESSAGE 3) Verifies batch structure
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
structure_verifier.GossipHandlerStructureVerifier(),
network_thread_pool)
# GOSSIP_MESSAGE 4) Determines if we should broadcast the
# message to our peers. It is important that this occur prior
# to the sending of the message to the completer, as this step
# relies on whether the gossip message has previously been
# seen by the validator to determine whether or not forwarding
# should occur
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
GossipBroadcastHandler(
gossip=self._gossip,
completer=completer),
network_thread_pool)
# GOSSIP_MESSAGE 5) Send message to completer
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_MESSAGE,
CompleterGossipHandler(
completer),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_REQUEST,
BlockResponderHandler(responder, self._gossip),
network_thread_pool)
# GOSSIP_BLOCK_RESPONSE 1) Sends ack to the sender
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_RESPONSE,
GossipBlockResponseHandler(),
network_thread_pool)
# GOSSIP_BLOCK_RESPONSE 2) Verifies signature
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_RESPONSE,
signature_verifier.GossipBlockResponseSignatureVerifier(),
sig_pool)
# GOSSIP_BLOCK_RESPONSE 3) Check batch structure
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_RESPONSE,
structure_verifier.GossipBlockResponseStructureVerifier(),
network_thread_pool)
# GOSSIP_BLOCK_RESPONSE 4) Send message to completer
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_RESPONSE,
CompleterGossipBlockResponseHandler(
completer),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BLOCK_RESPONSE,
ResponderBlockResponseHandler(responder, self._gossip),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_BY_BATCH_ID_REQUEST,
BatchByBatchIdResponderHandler(responder, self._gossip),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_BY_TRANSACTION_ID_REQUEST,
BatchByTransactionIdResponderHandler(responder, self._gossip),
network_thread_pool)
# GOSSIP_BATCH_RESPONSE 1) Sends ack to the sender
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_RESPONSE,
GossipBatchResponseHandler(),
network_thread_pool)
# GOSSIP_BATCH_RESPONSE 2) Verifies signature
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_RESPONSE,
signature_verifier.GossipBatchResponseSignatureVerifier(),
sig_pool)
# GOSSIP_BATCH_RESPONSE 3) Check batch structure
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_RESPONSE,
structure_verifier.GossipBatchResponseStructureVerifier(),
network_thread_pool)
# GOSSIP_BATCH_RESPONSE 4) Send message to completer
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_RESPONSE,
CompleterGossipBatchResponseHandler(
completer),
network_thread_pool)
self._network_dispatcher.add_handler(
validator_pb2.Message.GOSSIP_BATCH_RESPONSE,
ResponderBatchResponseHandler(responder, self._gossip),
network_thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
BatchListPermissionVerifier(
settings_view_factory=SettingsViewFactory(
StateViewFactory(merkle_db)),
current_root_func=self._journal.get_current_root,
),
sig_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
signature_verifier.BatchListSignatureVerifier(),
sig_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
structure_verifier.BatchListStructureVerifier(),
network_thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
CompleterBatchListBroadcastHandler(
completer, self._gossip),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_SUBMIT_REQUEST,
client_handlers.BatchSubmitFinisher(batch_tracker),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_STATUS_REQUEST,
client_handlers.BatchStatusRequest(batch_tracker),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_LIST_REQUEST,
client_handlers.StateListRequest(
merkle_db,
self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_GET_REQUEST,
client_handlers.StateGetRequest(
merkle_db,
self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BLOCK_LIST_REQUEST,
client_handlers.BlockListRequest(self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BLOCK_GET_REQUEST,
client_handlers.BlockGetRequest(self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_LIST_REQUEST,
client_handlers.BatchListRequest(self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_BATCH_GET_REQUEST,
client_handlers.BatchGetRequest(self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_TRANSACTION_LIST_REQUEST,
client_handlers.TransactionListRequest(
self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_TRANSACTION_GET_REQUEST,
client_handlers.TransactionGetRequest(
self._journal.get_block_store()),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.CLIENT_STATE_CURRENT_REQUEST,
client_handlers.StateCurrentRequest(
self._journal.get_current_root), thread_pool)
# State Delta Subscription Handlers
self._dispatcher.add_handler(
validator_pb2.Message.STATE_DELTA_SUBSCRIBE_REQUEST,
StateDeltaSubscriberValidationHandler(state_delta_processor),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.STATE_DELTA_SUBSCRIBE_REQUEST,
StateDeltaAddSubscriberHandler(state_delta_processor),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.STATE_DELTA_UNSUBSCRIBE_REQUEST,
StateDeltaUnsubscriberHandler(state_delta_processor),
thread_pool)
self._dispatcher.add_handler(
validator_pb2.Message.STATE_DELTA_GET_EVENTS_REQUEST,
GetStateDeltaEventsHandler(block_store, state_delta_store),
thread_pool)
from sawtooth_validator.journal.completer import Completer
from sawtooth_validator.database.dict_database import DictDatabase
from sawtooth_validator.journal.block_store import BlockStore
from sawtooth_validator.journal.block_wrapper import NULL_BLOCK_IDENTIFIER
from sawtooth_validator.protobuf.batch_pb2 import BatchHeader, Batch
from sawtooth_validator.protobuf.block_pb2 import BlockHeader, Block
from sawtooth_validator.protobuf.transaction_pb2 import TransactionHeader, Transaction
block_store = BlockStore(
DictDatabase(indexes=BlockStore.create_index_configuration()))
gossip = MockGossip()
context = create_context('secp256k1')
crypto_factory = CryptoFactory(context)
private_key = context.new_random_private_key()
signer = crypto_factory.new_signer(private_key)
completer = Completer(block_store, gossip)
def _create_transactions(count, missing_dep=False):
txn_list = []
for _ in range(count):
payload = {
'Verb': 'set',
'Name': 'name' + str(random.randint(0, 100)),
'Value': random.randint(0, 100)
}
intkey_prefix = \
hashlib.sha512('intkey'.encode('utf-8')).hexdigest()[0:6]
addr = intkey_prefix + \
class TestCompleter(unittest.TestCase):
def setUp(self):
self.block_store = BlockStore(DictDatabase(
indexes=BlockStore.create_index_configuration()))
self.gossip = MockGossip()
self.completer = Completer(self.block_store, self.gossip)
self.completer._on_block_received = self._on_block_received
self.completer._on_batch_received = self._on_batch_received
self.completer._has_block = self._has_block
self._has_block_value = True
context = create_context('secp256k1')
private_key = context.new_random_private_key()
crypto_factory = CryptoFactory(context)
self.signer = crypto_factory.new_signer(private_key)
self.blocks = []
self.batches = []
def _on_block_received(self, block):
return self.blocks.append(block.header_signature)
def _on_batch_received(self, batch):
return self.batches.append(batch.header_signature)
def _has_block(self, batch):
return self._has_block_value
def _create_transactions(self, count, missing_dep=False):
txn_list = []
for _ in range(count):
payload = {
'Verb': 'set',
'Name': 'name' + str(random.randint(0, 100)),
'Value': random.randint(0, 100)
}
intkey_prefix = \
hashlib.sha512('intkey'.encode('utf-8')).hexdigest()[0:6]
addr = intkey_prefix + \
hashlib.sha512(payload["Name"].encode('utf-8')).hexdigest()
payload_encode = hashlib.sha512(cbor.dumps(payload)).hexdigest()
header = TransactionHeader(
signer_public_key=self.signer.get_public_key().as_hex(),
family_name='intkey',
family_version='1.0',
inputs=[addr],
outputs=[addr],
dependencies=[],
batcher_public_key=self.signer.get_public_key().as_hex(),
payload_sha512=payload_encode)
if missing_dep:
header.dependencies.extend(["Missing"])
header_bytes = header.SerializeToString()
signature = self.signer.sign(header_bytes)
transaction = Transaction(
header=header_bytes,
payload=cbor.dumps(payload),
header_signature=signature)
txn_list.append(transaction)
return txn_list
def _create_batches(self, batch_count, txn_count,
missing_dep=False):
batch_list = []
for _ in range(batch_count):
txn_list = self._create_transactions(txn_count,
missing_dep=missing_dep)
txn_sig_list = [txn.header_signature for txn in txn_list]
batch_header = BatchHeader(
signer_public_key=self.signer.get_public_key().as_hex())
batch_header.transaction_ids.extend(txn_sig_list)
header_bytes = batch_header.SerializeToString()
signature = self.signer.sign(header_bytes)
batch = Batch(
header=header_bytes,
transactions=txn_list,
header_signature=signature)
batch_list.append(batch)
return batch_list
def _create_blocks(self,
block_count,
batch_count,
missing_predecessor=False,
missing_batch=False,
find_batch=True):
block_list = []
for i in range(0, block_count):
batch_list = self._create_batches(batch_count, 2)
batch_ids = [batch.header_signature for batch in batch_list]
if missing_predecessor:
predecessor = "Missing"
else:
predecessor = (block_list[i - 1].header_signature if i > 0 else
NULL_BLOCK_IDENTIFIER)
block_header = BlockHeader(
signer_public_key=self.signer.get_public_key().as_hex(),
batch_ids=batch_ids,
block_num=i,
previous_block_id=predecessor)
header_bytes = block_header.SerializeToString()
signature = self.signer.sign(header_bytes)
if missing_batch:
if find_batch:
self.completer.add_batch(batch_list[-1])
batch_list = batch_list[:-1]
block = Block(
header=header_bytes,
batches=batch_list,
header_signature=signature)
block_list.append(block)
return block_list
def test_good_block(self):
"""
Add completed block to completer. Block should be passed to
on_block_recieved.
"""
block = self._create_blocks(1, 1)[0]
self.completer.add_block(block)
self.assertIn(block.header_signature, self.blocks)
def test_duplicate_block(self):
"""
Submit same block twice.
"""
block = self._create_blocks(1, 1)[0]
self.completer.add_block(block)
self.completer.add_block(block)
self.assertIn(block.header_signature, self.blocks)
self.assertEqual(len(self.blocks), 1)
def test_block_missing_predecessor(self):
"""
The block is completed but the predecessor is missing.
"""
block = self._create_blocks(1, 1, missing_predecessor=True)[0]
self._has_block_value = False
self.completer.add_block(block)
self.assertEqual(len(self.blocks), 0)
self.assertIn("Missing", self.gossip.requested_blocks)
header = BlockHeader(previous_block_id=NULL_BLOCK_IDENTIFIER)
missing_block = Block(header_signature="Missing",
header=header.SerializeToString())
self._has_block_value = True
self.completer.add_block(missing_block)
self.assertIn(block.header_signature, self.blocks)
self.assertEqual(
block,
self.completer.get_block(block.header_signature).get_block())
def test_block_with_extra_batch(self):
"""
The block has a batch that is not in the batch_id list.
"""
block = self._create_blocks(1, 1)[0]
batches = self._create_batches(1, 1, True)
block.batches.extend(batches)
self.completer.add_block(block)
self.assertEqual(len(self.blocks), 0)
def test_block_missing_batch(self):
"""
The block is a missing batch and the batch is in the cache. The Block
will be build and passed to on_block_recieved. This puts the block
in the self.blocks list.
"""
block = self._create_blocks(1, 2, missing_batch=True)[0]
self.completer.add_block(block)
self.assertIn(block.header_signature, self.blocks)
self.assertEqual(
block,
self.completer.get_block(block.header_signature).get_block())
def test_block_missing_batch_not_in_cache(self):
"""
The block is a missing batch and the batch is not in the cache.
The batch will be requested and the block will not be passed to
on_block_recieved.
"""
block = self._create_blocks(
1, 3, missing_batch=True, find_batch=False)[0]
self.completer.add_block(block)
header = BlockHeader()
header.ParseFromString(block.header)
self.assertIn(header.batch_ids[-1], self.gossip.requested_batches)
def test_block_batches_wrong_order(self):
"""
The block has all of its batches but they are in the wrong order. The
batches will be reordered and the block will be passed to
on_block_recieved.
"""
block = self._create_blocks(1, 6)[0]
batches = list(block.batches)
random.shuffle(batches)
del block.batches[:]
block.batches.extend(batches)
self.completer.add_block(block)
self.assertIn(block.header_signature, self.blocks)
def test_block_batches_wrong_batch(self):
"""
The block has all the correct number of batches but one is not in the
batch_id list. This block should be dropped.
"""
block = self._create_blocks(1, 6)[0]
batch = Batch(header_signature="Extra")
batches = list(block.batches)
batches[-1] = batch
block.batches.extend(batches)
self.completer.add_block(block)
self.assertEqual(len(self.blocks), 0)
def test_good_batch(self):
"""
Add complete batch to completer. The batch should be passed to
on_batch_received.
"""
batch = self._create_batches(1, 1)[0]
self.completer.add_batch(batch)
self.assertIn(batch.header_signature, self.batches)
self.assertEqual(batch,
self.completer.get_batch(batch.header_signature))
def test_batch_with_missing_dep(self):
"""
Add batch to completer that has a missing dependency. The missing
transaction's batch should be requested add the missing batch is then
added to the completer. The incomplete batch should be rechecked
and passed to on_batch_received.
"""
batch = self._create_batches(1, 1, missing_dep=True)[0]
self.completer.add_batch(batch)
self.assertIn("Missing",
self.gossip.requested_batches_by_txn_id)
missing = Transaction(header_signature="Missing")
missing_batch = Batch(header_signature="Missing_batch",
transactions=[missing])
self.completer.add_batch(missing_batch)
self.assertIn(missing_batch.header_signature, self.batches)
self.assertIn(batch.header_signature, self.batches)
self.assertEqual(missing_batch,
self.completer.get_batch_by_transaction("Missing"))
class TestCompleter(unittest.TestCase):
def setUp(self):
self.block_store = BlockStore({})
self.gossip = MockGossip()
self.completer = Completer(self.block_store, self.gossip)
self.completer._on_block_received = self._on_block_received
self.completer._on_batch_received = self._on_batch_received
self.private_key = signing.generate_privkey()
self.public_key = signing.encode_pubkey(
signing.generate_pubkey(self.private_key), "hex")
self.blocks = []
self.batches = []
def _on_block_received(self, block):
print("Block received")
return self.blocks.append(block.header_signature)
def _on_batch_received(self, batch):
print("Batch received")
return self.batches.append(batch.header_signature)
def _create_transactions(self, count, missing_dep=False):
txn_list = []
for i in range(count):
payload = {
'Verb': 'set',
'Name': 'name' + str(random.randint(0, 100)),
'Value': random.randint(0, 100)
}
intkey_prefix = \
hashlib.sha512('intkey'.encode('utf-8')).hexdigest()[0:6]
addr = intkey_prefix + \
hashlib.sha512(payload["Name"].encode('utf-8')).hexdigest()
payload_encode = hashlib.sha512(cbor.dumps(payload)).hexdigest()
header = TransactionHeader(signer_pubkey=self.public_key,
family_name='intkey',
family_version='1.0',
inputs=[addr],
outputs=[addr],
dependencies=[],
payload_encoding="application/cbor",
payload_sha512=payload_encode)
if missing_dep:
header.dependencies.extend(["Missing"])
header_bytes = header.SerializeToString()
signature = signing.sign(header_bytes, self.private_key)
transaction = Transaction(header=header_bytes,
payload=cbor.dumps(payload),
header_signature=signature)
txn_list.append(transaction)
return txn_list
def _generate_id(self):
return hashlib.sha512(''.join([
random.choice(string.ascii_letters) for _ in range(0, 1024)
]).encode()).hexdigest()
def _create_batches(self, batch_count, txn_count, missing_dep=False):
batch_list = []
for i in range(batch_count):
txn_list = self._create_transactions(txn_count,
missing_dep=missing_dep)
txn_sig_list = [txn.header_signature for txn in txn_list]
batch_header = BatchHeader(signer_pubkey=self.public_key)
batch_header.transaction_ids.extend(txn_sig_list)
header_bytes = batch_header.SerializeToString()
signature = signing.sign(header_bytes, self.private_key)
batch = Batch(header=header_bytes,
transactions=txn_list,
header_signature=signature)
batch_list.append(batch)
return batch_list
def _create_blocks(self,
block_count,
batch_count,
missing_predecessor=False,
missing_batch=False,
find_batch=True):
block_list = []
pred = 0
for i in range(0, block_count):
batch_list = self._create_batches(batch_count, 2)
batch_ids = [batch.header_signature for batch in batch_list]
if missing_predecessor:
predecessor = "Missing"
else:
predecessor = (block_list[i - 1].header_signature
if i > 0 else NULL_BLOCK_IDENTIFIER)
block_header = BlockHeader(signer_pubkey=self.public_key,
batch_ids=batch_ids,
block_num=i,
previous_block_id=predecessor)
header_bytes = block_header.SerializeToString()
signature = signing.sign(header_bytes, self.private_key)
if missing_batch:
if find_batch:
self.completer.add_batch(batch_list[-1])
batch_list = batch_list[:-1]
block = Block(header=header_bytes,
batches=batch_list,
header_signature=signature)
block_list.append(block)
return block_list
def test_good_block(self):
"""
Add completed block to completer. Block should be passed to
on_block_recieved.
"""
block = self._create_blocks(1, 1)[0]
self.completer.add_block(block)
self.assertIn(block.header_signature, self.blocks)
def test_duplicate_block(self):
"""
Submit same block twice.
"""
block = block = self._create_blocks(1, 1)[0]
self.completer.add_block(block)
self.completer.add_block(block)
self.assertIn(block.header_signature, self.blocks)
self.assertEquals(len(self.blocks), 1)
def test_block_missing_predecessor(self):
"""
The block is completed but the predecessor is missing.
"""
block = self._create_blocks(1, 1, missing_predecessor=True)[0]
self.completer.add_block(block)
self.assertEquals(len(self.blocks), 0)
self.assertIn("Missing", self.gossip.requested_blocks)
header = BlockHeader(previous_block_id=NULL_BLOCK_IDENTIFIER)
missing_block = Block(header_signature="Missing",
header=header.SerializeToString())
self.completer.add_block(missing_block)
self.assertIn(block.header_signature, self.blocks)
self.assertEquals(
block,
self.completer.get_block(block.header_signature).get_block())
def test_block_with_extra_batch(self):
"""
The block has a batch that is not in the batch_id list.
"""
block = self._create_blocks(1, 1)[0]
batches = self._create_batches(1, 1, True)
block.batches.extend(batches)
self.completer.add_block(block)
self.assertEquals(len(self.blocks), 0)
def test_block_missing_batch(self):
"""
The block is a missing batch and the batch is in the cache. The Block
will be build and passed to on_block_recieved. This puts the block
in the self.blocks list.
"""
block = self._create_blocks(1, 2, missing_batch=True)[0]
self.completer.add_block(block)
self.assertIn(block.header_signature, self.blocks)
self.assertEquals(
block,
self.completer.get_block(block.header_signature).get_block())
def test_block_missing_batch_not_in_cache(self):
"""
The block is a missing batch and the batch is not in the cache.
The batch will be requested and the block will not be passed to
on_block_recieved.
"""
block = self._create_blocks(1, 3, missing_batch=True,
find_batch=False)[0]
self.completer.add_block(block)
header = BlockHeader()
header.ParseFromString(block.header)
self.assertIn(header.batch_ids[-1], self.gossip.requested_batches)
def test_block_batches_wrong_order(self):
"""
The block has all of its batches but they are in the wrong order. The
batches will be reordered and the block will be passed to
on_block_recieved.
"""
block = self._create_blocks(1, 6)[0]
batches = list(block.batches)
random.shuffle(batches)
del block.batches[:]
block.batches.extend(batches)
self.completer.add_block(block)
self.assertIn(block.header_signature, self.blocks)
def test_block_batches_wrong_batch(self):
"""
The block has all the correct number of batches but one is not in the
batch_id list. This block should be dropped.
"""
block = self._create_blocks(1, 6)[0]
batch = Batch(header_signature="Extra")
batches = list(block.batches)
batches[-1] = batch
block.batches.extend(batches)
self.completer.add_block(block)
self.assertEquals(len(self.blocks), 0)
def test_good_batch(self):
"""
Add complete batch to completer. The batch should be passed to
on_batch_received.
"""
batch = self._create_batches(1, 1)[0]
self.completer.add_batch(batch)
self.assertIn(batch.header_signature, self.batches)
self.assertEquals(batch,
self.completer.get_batch(batch.header_signature))
def test_batch_with_missing_dep(self):
"""
Add batch to completer that has a missing dependency. The missing
transaction's batch should be requested add the missing batch is then
added to the completer. The incomplete batch should be rechecked
and passed to on_batch_received.
"""
batch = self._create_batches(1, 1, missing_dep=True)[0]
self.completer.add_batch(batch)
self.assertIn("Missing",
self.gossip.requested_batches_by_transactin_id)
missing = Transaction(header_signature="Missing")
missing_batch = Batch(header_signature="Missing_batch",
transactions=[missing])
self.completer.add_batch(missing_batch)
self.assertIn(missing_batch.header_signature, self.batches)
self.assertIn(batch.header_signature, self.batches)
self.assertEquals(missing_batch,
self.completer.get_batch_by_transaction("Missing"))
class TestCompleter(unittest.TestCase):
def setUp(self):
self.dir = tempfile.mkdtemp()
self.block_db = NativeLmdbDatabase(
os.path.join(self.dir, 'block.lmdb'),
BlockStore.create_index_configuration())
self.block_store = BlockStore(self.block_db)
self.block_manager = BlockManager()
self.block_manager.add_commit_store(self.block_store)
self.gossip = MockGossip()
self.completer = Completer(
block_manager=self.block_manager,
transaction_committed=self.block_store.has_transaction,
get_committed_batch_by_id=self.block_store.get_batch,
get_committed_batch_by_txn_id=(
self.block_store.get_batch_by_transaction),
gossip=self.gossip)
self.completer.set_get_chain_head(lambda: self.block_store.chain_head)
self.completer.set_on_block_received(self._on_block_received)
self.completer.set_on_batch_received(self._on_batch_received)
self._has_block_value = True
context = create_context('secp256k1')
private_key = context.new_random_private_key()
crypto_factory = CryptoFactory(context)
self.signer = crypto_factory.new_signer(private_key)
self.blocks = []
self.batches = []
def _on_block_received(self, block_id):
return self.blocks.append(block_id)
def _on_batch_received(self, batch):
return self.batches.append(batch.header_signature)
def _has_block(self, batch):
return self._has_block_value
def _create_transactions(self, count, missing_dep=False):
txn_list = []
for _ in range(count):
payload = {
'Verb': 'set',
'Name': 'name' + str(random.randint(0, 100)),
'Value': random.randint(0, 100)
}
intkey_prefix = \
hashlib.sha512('intkey'.encode('utf-8')).hexdigest()[0:6]
addr = intkey_prefix + \
hashlib.sha512(payload["Name"].encode('utf-8')).hexdigest()
payload_encode = hashlib.sha512(cbor.dumps(payload)).hexdigest()
header = TransactionHeader(
signer_public_key=self.signer.get_public_key().as_hex(),
family_name='intkey',
family_version='1.0',
inputs=[addr],
outputs=[addr],
dependencies=[],
batcher_public_key=self.signer.get_public_key().as_hex(),
payload_sha512=payload_encode)
if missing_dep:
header.dependencies.extend(["Missing"])
header_bytes = header.SerializeToString()
signature = self.signer.sign(header_bytes)
transaction = Transaction(header=header_bytes,
payload=cbor.dumps(payload),
header_signature=signature)
txn_list.append(transaction)
return txn_list
def _create_batches(self, batch_count, txn_count, missing_dep=False):
batch_list = []
for _ in range(batch_count):
txn_list = self._create_transactions(txn_count,
missing_dep=missing_dep)
txn_sig_list = [txn.header_signature for txn in txn_list]
batch_header = BatchHeader(
signer_public_key=self.signer.get_public_key().as_hex())
batch_header.transaction_ids.extend(txn_sig_list)
header_bytes = batch_header.SerializeToString()
signature = self.signer.sign(header_bytes)
batch = Batch(header=header_bytes,
transactions=txn_list,
header_signature=signature)
batch_list.append(batch)
return batch_list
def _create_blocks(self,
block_count,
batch_count,
missing_predecessor=False,
missing_batch=False,
find_batch=True):
block_list = []
for i in range(0, block_count):
batch_list = self._create_batches(batch_count, 2)
batch_ids = [batch.header_signature for batch in batch_list]
if missing_predecessor:
predecessor = "Missing"
else:
predecessor = (block_list[i - 1].header_signature
if i > 0 else NULL_BLOCK_IDENTIFIER)
block_header = BlockHeader(
signer_public_key=self.signer.get_public_key().as_hex(),
batch_ids=batch_ids,
block_num=i,
previous_block_id=predecessor)
header_bytes = block_header.SerializeToString()
signature = self.signer.sign(header_bytes)
if missing_batch:
if find_batch:
self.completer.add_batch(batch_list[-1])
batch_list = batch_list[:-1]
block = Block(header=header_bytes,
batches=batch_list,
header_signature=signature)
block_list.append(block)
return block_list
def test_good_block(self):
"""
Add completed block to completer. Block should be passed to
on_block_recieved.
"""
block = self._create_blocks(1, 1)[0]
self.completer.add_block(block)
self.assertIn(block.header_signature, self.blocks)
def test_duplicate_block(self):
"""
Submit same block twice.
"""
block = self._create_blocks(1, 1)[0]
self.completer.add_block(block)
self.completer.add_block(block)
self.assertIn(block.header_signature, self.blocks)
self.assertEqual(len(self.blocks), 1)
def test_block_missing_predecessor(self):
"""
The block is completed but the predecessor is missing.
"""
block = self._create_blocks(1, 1, missing_predecessor=True)[0]
self._has_block_value = False
self.completer.add_block(block)
self.assertEqual(len(self.blocks), 0)
self.assertIn("Missing", self.gossip.requested_blocks)
header = BlockHeader(previous_block_id=NULL_BLOCK_IDENTIFIER)
missing_block = Block(header_signature="Missing",
header=header.SerializeToString())
self._has_block_value = True
self.completer.add_block(missing_block)
self.assertIn(block.header_signature, self.blocks)
self.assertEqual(block,
self.completer.get_block(block.header_signature))
def test_block_with_extra_batch(self):
"""
The block has a batch that is not in the batch_id list.
"""
block = self._create_blocks(1, 1)[0]
batches = self._create_batches(1, 1, True)
block.batches.extend(batches)
self.completer.add_block(block)
self.assertEqual(len(self.blocks), 0)
def test_block_missing_batch(self):
"""
The block is a missing batch and the batch is in the cache. The Block
will be build and passed to on_block_recieved. This puts the block
in the self.blocks list.
"""
block = self._create_blocks(1, 2, missing_batch=True)[0]
self.completer.add_block(block)
self.assertIn(block.header_signature, self.blocks)
self.assertEqual(block,
self.completer.get_block(block.header_signature))
def test_block_missing_batch_not_in_cache(self):
"""
The block is a missing batch and the batch is not in the cache.
The batch will be requested and the block will not be passed to
on_block_recieved.
"""
block = self._create_blocks(1, 3, missing_batch=True,
find_batch=False)[0]
self.completer.add_block(block)
header = BlockHeader()
header.ParseFromString(block.header)
self.assertIn(header.batch_ids[-1], self.gossip.requested_batches)
def test_block_batches_wrong_order(self):
"""
The block has all of its batches but they are in the wrong order. The
batches will be reordered and the block will be passed to
on_block_recieved.
"""
block = self._create_blocks(1, 6)[0]
batches = list(block.batches)
random.shuffle(batches)
del block.batches[:]
block.batches.extend(batches)
self.completer.add_block(block)
self.assertIn(block.header_signature, self.blocks)
def test_block_batches_wrong_batch(self):
"""
The block has all the correct number of batches but one is not in the
batch_id list. This block should be dropped.
"""
block = self._create_blocks(1, 6)[0]
batch = Batch(header_signature="Extra")
batches = list(block.batches)
batches[-1] = batch
block.batches.extend(batches)
self.completer.add_block(block)
self.assertEqual(len(self.blocks), 0)
def test_good_batch(self):
"""
Add complete batch to completer. The batch should be passed to
on_batch_received.
"""
batch = self._create_batches(1, 1)[0]
self.completer.add_batch(batch)
self.assertIn(batch.header_signature, self.batches)
self.assertEqual(batch,
self.completer.get_batch(batch.header_signature))
def test_batch_with_missing_dep(self):
"""
Add batch to completer that has a missing dependency. The missing
transaction's batch should be requested add the missing batch is then
added to the completer. The incomplete batch should be rechecked
and passed to on_batch_received.
"""
batch = self._create_batches(1, 1, missing_dep=True)[0]
self.completer.add_batch(batch)
self.assertIn("Missing", self.gossip.requested_batches_by_txn_id)
missing = Transaction(header_signature="Missing")
missing_batch = Batch(header_signature="Missing_batch",
transactions=[missing])
self.completer.add_batch(missing_batch)
self.assertIn(missing_batch.header_signature, self.batches)
self.assertIn(batch.header_signature, self.batches)
self.assertEqual(missing_batch,
self.completer.get_batch_by_transaction("Missing"))
class Dispatcher(Thread):
def __init__(self):
super(Dispatcher, self).__init__()
self.on_batch_received = None
self.on_block_received = None
self.on_block_requested = None
self.incoming_msg_queue = None
self.completer_queue = queue.Queue()
self.completer_conditon = Condition()
self.condition = None
self._exit = False
self.completer = None
def create_completer(self):
self.completer = Completer(self.on_block_received,
self.completer_conditon,
self.completer_queue)
self.completer.start()
def set_incoming_msg_queue(self, msg_queue):
self.incoming_msg_queue = msg_queue
def set_condition(self, condition):
self.condition = condition
def set_on_block_received(self, on_block_received_func):
self.on_block_received = on_block_received_func
def set_on_batch_received(self, on_batch_received_func):
self.on_batch_received = on_batch_received_func
def set_on_block_requested(self, on_block_requested_func):
self.on_block_requested = on_block_requested_func
def stop(self):
self._exit = True
self.completer.stop()
with self.completer_conditon:
self.completer_conditon.notify_all()
def run(self):
if self.incoming_msg_queue is None or self.condition is None:
LOGGER.warning("Dispatcher can not be used if incoming_msg_queue "
"or condition is not set.")
return
while True:
if self._exit:
return
try:
request = self.incoming_msg_queue.get(block=False)
if request.content_type == "Block":
try:
block = Block()
block.ParseFromString(request.content)
LOGGER.debug("Block given to Completer %s",
block.header_signature)
self.completer_queue.put_nowait(block)
with self.completer_conditon:
self.completer_conditon.notify_all()
except DecodeError as e:
# what to do with a bad msg
LOGGER.warning(
"Problem decoding GossipMessage for "
"Block, %s", e)
elif request.content_type == "Batch":
try:
batch = Batch()
batch.ParseFromString(request.content)
self.completer.add_batch(batch)
self.on_batch_received(batch)
except DecodeError as e:
LOGGER.warning(
"Problem decoding GossipMessage for "
"Batch, %s", e)
elif request.content_type == "BlockRequest":
block_id = str(request.content, "utf-8")
self.on_block_requested(block_id)
elif request.content_type == "Test":
LOGGER.debug("Dispatch Handle Test")
except queue.Empty:
with self.condition:
self.condition.wait()
def __init__(self,
bind_network,
bind_component,
bind_consensus,
endpoint,
peering,
seeds_list,
peer_list,
data_dir,
config_dir,
identity_signer,
scheduler_type,
permissions,
minimum_peer_connectivity,
maximum_peer_connectivity,
state_pruning_block_depth,
network_public_key=None,
network_private_key=None,
roles=None):
"""Constructs a validator instance.
Args:
bind_network (str): the network endpoint
bind_component (str): the component endpoint
endpoint (str): the zmq-style URI of this validator's
publically reachable endpoint
peering (str): The type of peering approach. Either 'static'
or 'dynamic'. In 'static' mode, no attempted topology
buildout occurs -- the validator only attempts to initiate
peering connections with endpoints specified in the
peer_list. In 'dynamic' mode, the validator will first
attempt to initiate peering connections with endpoints
specified in the peer_list and then attempt to do a
topology buildout starting with peer lists obtained from
endpoints in the seeds_list. In either mode, the validator
will accept incoming peer requests up to max_peers.
seeds_list (list of str): a list of addresses to connect
to in order to perform the initial topology buildout
peer_list (list of str): a list of peer addresses
data_dir (str): path to the data directory
config_dir (str): path to the config directory
identity_signer (str): cryptographic signer the validator uses for
signing
"""
# -- Setup Global State Database and Factory -- #
global_state_db_filename = os.path.join(
data_dir, 'merkle-{}.lmdb'.format(bind_network[-2:]))
LOGGER.debug('global state database file is %s',
global_state_db_filename)
global_state_db = NativeLmdbDatabase(
global_state_db_filename,
indexes=MerkleDatabase.create_index_configuration())
state_view_factory = StateViewFactory(global_state_db)
# -- Setup Receipt Store -- #
receipt_db_filename = os.path.join(
data_dir, 'txn_receipts-{}.lmdb'.format(bind_network[-2:]))
LOGGER.debug('txn receipt store file is %s', receipt_db_filename)
receipt_db = LMDBNoLockDatabase(receipt_db_filename, 'c')
receipt_store = TransactionReceiptStore(receipt_db)
# -- Setup Block Store -- #
block_db_filename = os.path.join(
data_dir, 'block-{}.lmdb'.format(bind_network[-2:]))
LOGGER.debug('block store file is %s', block_db_filename)
block_db = IndexedDatabase(
block_db_filename,
BlockStore.serialize_block,
BlockStore.deserialize_block,
flag='c',
indexes=BlockStore.create_index_configuration())
block_store = BlockStore(block_db)
# The cache keep time for the journal's block cache must be greater
# than the cache keep time used by the completer.
base_keep_time = 1200
block_cache = BlockCache(block_store,
keep_time=int(base_keep_time * 9 / 8),
purge_frequency=30)
# -- Setup Thread Pools -- #
component_thread_pool = InstrumentedThreadPoolExecutor(
max_workers=10, name='Component')
network_thread_pool = InstrumentedThreadPoolExecutor(max_workers=10,
name='Network')
client_thread_pool = InstrumentedThreadPoolExecutor(max_workers=5,
name='Client')
sig_pool = InstrumentedThreadPoolExecutor(max_workers=3,
name='Signature')
# -- Setup Dispatchers -- #
component_dispatcher = Dispatcher()
network_dispatcher = Dispatcher()
# -- Setup Services -- #
component_service = Interconnect(bind_component,
component_dispatcher,
secured=False,
heartbeat=False,
max_incoming_connections=20,
monitor=True,
max_future_callback_workers=10)
zmq_identity = hashlib.sha512(
time.time().hex().encode()).hexdigest()[:23]
secure = False
if network_public_key is not None and network_private_key is not None:
secure = True
network_service = Interconnect(bind_network,
dispatcher=network_dispatcher,
zmq_identity=zmq_identity,
secured=secure,
server_public_key=network_public_key,
server_private_key=network_private_key,
heartbeat=True,
public_endpoint=endpoint,
connection_timeout=120,
max_incoming_connections=100,
max_future_callback_workers=10,
authorize=True,
signer=identity_signer,
roles=roles)
# -- Setup Transaction Execution Platform -- #
context_manager = ContextManager(global_state_db)
batch_tracker = BatchTracker(block_store)
settings_cache = SettingsCache(
SettingsViewFactory(state_view_factory), )
transaction_executor = TransactionExecutor(
service=component_service,
context_manager=context_manager,
settings_view_factory=SettingsViewFactory(state_view_factory),
scheduler_type=scheduler_type,
invalid_observers=[batch_tracker])
component_service.set_check_connections(
transaction_executor.check_connections)
event_broadcaster = EventBroadcaster(component_service, block_store,
receipt_store)
# -- Setup P2P Networking -- #
gossip = Gossip(network_service,
settings_cache,
lambda: block_store.chain_head,
block_store.chain_head_state_root,
endpoint=endpoint,
peering_mode=peering,
initial_seed_endpoints=seeds_list,
initial_peer_endpoints=peer_list,
minimum_peer_connectivity=minimum_peer_connectivity,
maximum_peer_connectivity=maximum_peer_connectivity,
topology_check_frequency=1)
completer = Completer(block_store,
gossip,
cache_keep_time=base_keep_time,
cache_purge_frequency=30,
requested_keep_time=300)
block_sender = BroadcastBlockSender(completer, gossip)
batch_sender = BroadcastBatchSender(completer, gossip)
chain_id_manager = ChainIdManager(data_dir)
identity_view_factory = IdentityViewFactory(
StateViewFactory(global_state_db))
id_cache = IdentityCache(identity_view_factory)
# -- Setup Permissioning -- #
permission_verifier = PermissionVerifier(
permissions, block_store.chain_head_state_root, id_cache)
identity_observer = IdentityObserver(to_update=id_cache.invalidate,
forked=id_cache.forked)
settings_observer = SettingsObserver(
to_update=settings_cache.invalidate, forked=settings_cache.forked)
# -- Consensus Engine -- #
consensus_thread_pool = InstrumentedThreadPoolExecutor(
max_workers=3, name='Consensus')
consensus_dispatcher = Dispatcher()
consensus_service = Interconnect(bind_consensus,
consensus_dispatcher,
secured=False,
heartbeat=False,
max_incoming_connections=20,
monitor=True,
max_future_callback_workers=10)
consensus_notifier = ConsensusNotifier(consensus_service)
# -- Setup Journal -- #
batch_injector_factory = DefaultBatchInjectorFactory(
block_cache=block_cache,
state_view_factory=state_view_factory,
signer=identity_signer)
block_publisher = BlockPublisher(
transaction_executor=transaction_executor,
block_cache=block_cache,
state_view_factory=state_view_factory,
settings_cache=settings_cache,
block_sender=block_sender,
batch_sender=batch_sender,
chain_head=block_store.chain_head,
identity_signer=identity_signer,
data_dir=data_dir,
config_dir=config_dir,
permission_verifier=permission_verifier,
check_publish_block_frequency=0.1,
batch_observers=[batch_tracker],
batch_injector_factory=batch_injector_factory)
block_publisher_batch_sender = block_publisher.batch_sender()
block_validator = BlockValidator(
block_cache=block_cache,
state_view_factory=state_view_factory,
transaction_executor=transaction_executor,
identity_signer=identity_signer,
data_dir=data_dir,
config_dir=config_dir,
permission_verifier=permission_verifier)
chain_controller = ChainController(
block_store=block_store,
block_cache=block_cache,
block_validator=block_validator,
state_database=global_state_db,
chain_head_lock=block_publisher.chain_head_lock,
state_pruning_block_depth=state_pruning_block_depth,
data_dir=data_dir,
observers=[
event_broadcaster, receipt_store, batch_tracker,
identity_observer, settings_observer
])
genesis_controller = GenesisController(
context_manager=context_manager,
transaction_executor=transaction_executor,
completer=completer,
block_store=block_store,
state_view_factory=state_view_factory,
identity_signer=identity_signer,
data_dir=data_dir,
config_dir=config_dir,
chain_id_manager=chain_id_manager,
batch_sender=batch_sender)
responder = Responder(completer)
completer.set_on_batch_received(block_publisher_batch_sender.send)
completer.set_on_block_received(chain_controller.queue_block)
completer.set_chain_has_block(chain_controller.has_block)
# -- Register Message Handler -- #
network_handlers.add(network_dispatcher, network_service, gossip,
completer, responder, network_thread_pool,
sig_pool, chain_controller.has_block,
block_publisher.has_batch, permission_verifier,
block_publisher, consensus_notifier)
component_handlers.add(component_dispatcher, gossip, context_manager,
transaction_executor, completer, block_store,
batch_tracker, global_state_db,
self.get_chain_head_state_root_hash,
receipt_store, event_broadcaster,
permission_verifier, component_thread_pool,
client_thread_pool, sig_pool, block_publisher)
# -- Store Object References -- #
self._component_dispatcher = component_dispatcher
self._component_service = component_service
self._component_thread_pool = component_thread_pool
self._network_dispatcher = network_dispatcher
self._network_service = network_service
self._network_thread_pool = network_thread_pool
consensus_proxy = ConsensusProxy(
block_cache=block_cache,
chain_controller=chain_controller,
block_publisher=block_publisher,
gossip=gossip,
identity_signer=identity_signer,
settings_view_factory=SettingsViewFactory(state_view_factory),
state_view_factory=state_view_factory)
consensus_handlers.add(consensus_dispatcher, consensus_thread_pool,
consensus_proxy)
self._consensus_dispatcher = consensus_dispatcher
self._consensus_service = consensus_service
self._consensus_thread_pool = consensus_thread_pool
self._client_thread_pool = client_thread_pool
self._sig_pool = sig_pool
self._context_manager = context_manager
self._transaction_executor = transaction_executor
self._genesis_controller = genesis_controller
self._gossip = gossip
self._block_publisher = block_publisher
self._chain_controller = chain_controller
self._block_validator = block_validator
def create_completer(self):
self.completer = Completer(self.on_block_received,
self.completer_conditon,
self.completer_queue)
self.completer.start()
