def test_6_serialize_full_approve_payload(self):
sc = NotifyEvent(
SmartContractEvent.RUNTIME_NOTIFY,
[b'approve', self.addr_to, self.addr_from, b'x\xe0\x01'],
self.contract_hash, 91349, self.event_tx, True, False)
stream = StreamManager.GetStream()
writer = BinaryWriter(stream)
sc.Serialize(writer)
out = bytes(stream.getvalue())
StreamManager.ReleaseStream(stream)
new_event = SmartContractEvent.FromByteArray(out)
self.assertEqual(new_event.event_type, sc.event_type)
self.assertEqual(new_event.contract_hash, sc.contract_hash)
self.assertEqual(new_event.test_mode, sc.test_mode)
self.assertEqual(new_event.tx_hash, sc.tx_hash)
self.assertEqual(new_event.block_number, sc.block_number)
self.assertEqual(new_event.notify_type, b'approve')
self.assertEqual(new_event.AddressFrom,
'AKZmSGPD7ytJBbxpRPmobYGLNxdWH3Jiqs')
self.assertEqual(new_event.AddressTo,
'ALb8FEhEmtSqv97fuNVuoLmcmrSKckffRf')
self.assertEqual(new_event.Amount, 123000)
self.assertEqual(new_event.is_standard_notify, True)
self.assertEqual(new_event.ShouldPersist, True)
def test_2_serialize_single_notify_payload(self):
sc = NotifyEvent(SmartContractEvent.RUNTIME_NOTIFY, [b'hello'],
self.contract_hash, 99, self.event_tx, True, False)
stream = StreamManager.GetStream()
writer = BinaryWriter(stream)
sc.Serialize(writer)
out = bytes(stream.getvalue())
self.assertEqual(
out,
b'\x1cSmartContract.Runtime.Notify\x11\xc4\xd1\xf4\xfb\xa6\x19\xf2b\x88p\xd3n:\x97s\xe8tp[c\x00\x00\x00\x90\xe4\xf1\xbbb\x8e\xf1\x07\xde\xe9\xf0\xd2\x12\xd1w\xbco\x844\x07=\x1b\xa7\x1f\xa7\x94`\x0b\xb4\x88|K\x05hello'
)
StreamManager.ReleaseStream(stream)
new_event = SmartContractEvent.FromByteArray(out)
self.assertEqual(new_event.event_type, sc.event_type)
self.assertEqual(new_event.contract_hash, sc.contract_hash)
self.assertEqual(new_event.test_mode, sc.test_mode)
self.assertEqual(new_event.tx_hash, sc.tx_hash)
self.assertEqual(new_event.block_number, sc.block_number)
self.assertEqual(new_event.notify_type, b'hello')
self.assertEqual(new_event.AddressFrom, None)
self.assertEqual(new_event.AddressTo, None)
self.assertEqual(new_event.Amount, 0)
self.assertEqual(new_event.is_standard_notify, False)
def test_3_serialize_single_transfer_notify_payload(self):
sc = NotifyEvent(SmartContractEvent.RUNTIME_NOTIFY, [b'transfer'],
self.contract_hash, 99, self.event_tx, True, False)
stream = StreamManager.GetStream()
writer = BinaryWriter(stream)
sc.Serialize(writer)
out = bytes(stream.getvalue())
StreamManager.ReleaseStream(stream)
new_event = SmartContractEvent.FromByteArray(out)
self.assertEqual(new_event.event_type, sc.event_type)
self.assertEqual(new_event.contract_hash, sc.contract_hash)
self.assertEqual(new_event.test_mode, sc.test_mode)
self.assertEqual(new_event.tx_hash, sc.tx_hash)
self.assertEqual(new_event.block_number, sc.block_number)
self.assertEqual(new_event.notify_type, b'transfer')
self.assertEqual(new_event.AddressFrom, None)
self.assertEqual(new_event.AddressTo, None)
self.assertEqual(new_event.Amount, 0)
self.assertEqual(new_event.is_standard_notify, False)
self.assertEqual(new_event.ShouldPersist, False)
def test_5_serialize_full_refund_payload(self):
sc = NotifyEvent(SmartContractEvent.RUNTIME_NOTIFY,
[b'refund', self.addr_to,
BigInteger(123000)], self.contract_hash, 91349,
self.event_tx, True, False)
stream = StreamManager.GetStream()
writer = BinaryWriter(stream)
sc.Serialize(writer)
out = bytes(stream.getvalue())
StreamManager.ReleaseStream(stream)
new_event = SmartContractEvent.FromByteArray(out)
self.assertEqual(new_event.event_type, sc.event_type)
self.assertEqual(new_event.contract_hash, sc.contract_hash)
self.assertEqual(new_event.test_mode, sc.test_mode)
self.assertEqual(new_event.tx_hash, sc.tx_hash)
self.assertEqual(new_event.block_number, sc.block_number)
self.assertEqual(new_event.notify_type, b'refund')
self.assertEqual(new_event.AddressTo,
'AKZmSGPD7ytJBbxpRPmobYGLNxdWH3Jiqs')
self.assertEqual(new_event.addr_from, sc.contract_hash)
self.assertEqual(new_event.Amount, 123000)
self.assertEqual(new_event.is_standard_notify, True)
def test_4_serialize_full_transfer_notify_payload(self):
payload = ContractParameter(ContractParameterType.Array, [
ContractParameter(ContractParameterType.String, b'transfer'),
ContractParameter(ContractParameterType.ByteArray, self.addr_to),
ContractParameter(ContractParameterType.ByteArray, self.addr_from),
ContractParameter(ContractParameterType.Integer, 123000)
])
sc = NotifyEvent(SmartContractEvent.RUNTIME_NOTIFY, payload, self.contract_hash, 91349, self.event_tx, True, False)
stream = StreamManager.GetStream()
writer = BinaryWriter(stream)
sc.Serialize(writer)
out = bytes(stream.getvalue())
StreamManager.ReleaseStream(stream)
new_event = SmartContractEvent.FromByteArray(out)
self.assertEqual(new_event.event_type, sc.event_type)
self.assertEqual(new_event.contract_hash, sc.contract_hash)
self.assertEqual(new_event.test_mode, sc.test_mode)
self.assertEqual(new_event.tx_hash, sc.tx_hash)
self.assertEqual(new_event.block_number, sc.block_number)
self.assertEqual(new_event.notify_type, b'transfer')
self.assertEqual(new_event.AddressTo, 'ALb8FEhEmtSqv97fuNVuoLmcmrSKckffRf')
self.assertEqual(new_event.AddressFrom, 'AKZmSGPD7ytJBbxpRPmobYGLNxdWH3Jiqs')
self.assertEqual(new_event.Amount, 123000)
self.assertEqual(new_event.is_standard_notify, True)
def Runtime_Notify(self, engine):
state = engine.EvaluationStack.Pop()
# Build and emit smart contract event
state_py = stack_item_to_py(state)
payload = state_py if isinstance(state_py, list) else [
state_py
] # Runtime.Notify payload must be a list
args = NotifyEventArgs(
engine.ScriptContainer,
UInt160(data=engine.CurrentContext.ScriptHash()), payload)
message = payload[0] if len(payload) > 0 else payload
engine.write_log(str(message))
self.notifications.append(args)
if settings.emit_notify_events_on_sc_execution_error:
# emit Notify events even if the SC execution might fail.
tx_hash = engine.ScriptContainer.Hash
height = Blockchain.Default().Height + 1
success = None
self.events_to_dispatch.append(
NotifyEvent(SmartContractEvent.RUNTIME_NOTIFY, args.State,
args.ScriptHash, height, tx_hash, success,
engine.testMode))
return True
def test_1_notify_should_not_persist(self):
sc = NotifyEvent(SmartContractEvent.RUNTIME_NOTIFY, ContractParameter(ContractParameterType.Array, []), self.contract_hash, 99, self.event_tx, True, False)
ndb = NotificationDB.instance()
ndb.on_smart_contract_event(sc)
self.assertEqual(ndb.current_events, [])
def ExecutionCompleted(self, engine, success, error=None):
height = Blockchain.Default().Height
tx_hash = engine.ScriptContainer.Hash
entry_script = None
try:
# get the first script that was executed
# this is usually the script that sets up the script to be executed
entry_script = UInt160(data=engine.ExecutedScriptHashes[0])
# ExecutedScriptHashes[1] will usually be the first contract executed
if len(engine.ExecutedScriptHashes) > 1:
entry_script = UInt160(data=engine.ExecutedScriptHashes[1])
except Exception as e:
logger.error("Could not get entry script: %s " % e)
payload = []
for item in engine.EvaluationStack.Items:
payload_item = stack_item_to_py(item)
payload.append(payload_item)
if success:
# dispatch all notify events, along with the success of the contract execution
for notify_event_args in self.notifications:
self.events_to_dispatch.append(
NotifyEvent(SmartContractEvent.RUNTIME_NOTIFY,
notify_event_args.State,
notify_event_args.ScriptHash, height, tx_hash,
success, engine.testMode))
if engine.Trigger == Application:
self.events_to_dispatch.append(
SmartContractEvent(SmartContractEvent.EXECUTION_SUCCESS,
payload, entry_script, height, tx_hash,
success, engine.testMode))
else:
self.events_to_dispatch.append(
SmartContractEvent(SmartContractEvent.VERIFICATION_SUCCESS,
payload, entry_script, height, tx_hash,
success, engine.testMode))
else:
if engine.Trigger == Application:
self.events_to_dispatch.append(
SmartContractEvent(SmartContractEvent.EXECUTION_FAIL,
[payload, error, engine._VMState],
entry_script, height, tx_hash, success,
engine.testMode))
else:
self.events_to_dispatch.append(
SmartContractEvent(SmartContractEvent.VERIFICATION_FAIL,
[payload, error, engine._VMState],
entry_script, height, tx_hash, success,
engine.testMode))
self.notifications = []
def dispatch_smart_contract_notify(event_type,
event_payload,
contract_hash,
block_number,
tx_hash,
execution_success=False,
test_mode=False):
notify_event = NotifyEvent(event_type, event_payload, contract_hash, block_number, tx_hash, execution_success, test_mode)
events.emit(event_type, notify_event)
def test_should_persist_mint_event(self):
sc = NotifyEvent(
SmartContractEvent.RUNTIME_NOTIFY,
[b'mint', self.addr_to, BigInteger(123000)], self.contract_hash,
91349, self.event_tx, True, False)
ndb = NotificationDB.instance()
ndb.on_smart_contract_event(sc)
self.assertEqual(len(ndb.current_events), 1)
ndb.on_persist_completed(None)
def test_4_should_persist(self):
ndb = NotificationDB.instance()
self.assertEqual(len(ndb.current_events), 0)
sc = NotifyEvent(
SmartContractEvent.RUNTIME_NOTIFY,
[b'transfer', self.addr_to, self.addr_from,
BigInteger(123000)], self.contract_hash, 91349, self.event_tx,
True, True)
ndb.on_smart_contract_event(sc)
self.assertEqual(len(ndb.current_events), 0)
def test_3_should_persist(self):
payload = ContractParameter(ContractParameterType.Array, [
ContractParameter(ContractParameterType.String, b'transfer'),
ContractParameter(ContractParameterType.ByteArray, self.addr_to),
ContractParameter(ContractParameterType.ByteArray, self.addr_from),
ContractParameter(ContractParameterType.Integer, 123000)
])
sc = NotifyEvent(SmartContractEvent.RUNTIME_NOTIFY, payload, self.contract_hash, 91349, self.event_tx, True, False)
ndb = NotificationDB.instance()
ndb.on_smart_contract_event(sc)
self.assertEqual(len(ndb.current_events), 1)
ndb.on_persist_completed(None)
def Runtime_Notify(self, engine: ExecutionEngine):
state = engine.CurrentContext.EvaluationStack.Pop()
payload = ContractParameter.ToParameter(state)
args = NotifyEventArgs(
engine.ScriptContainer,
UInt160(data=engine.CurrentContext.ScriptHash()), payload)
self.notifications.append(args)
if settings.emit_notify_events_on_sc_execution_error:
# emit Notify events even if the SC execution might fail.
tx_hash = engine.ScriptContainer.Hash
height = GetBlockchain().Height + 1
success = None
self.events_to_dispatch.append(
NotifyEvent(SmartContractEvent.RUNTIME_NOTIFY, payload,
args.ScriptHash, height, tx_hash, success,
engine.testMode))
return True
def ExecutionCompleted(self, engine, success, error=None):
height = Blockchain.Default().Height + 1
tx_hash = None
if engine.ScriptContainer:
tx_hash = engine.ScriptContainer.Hash
if not tx_hash:
tx_hash = UInt256(data=bytearray(32))
entry_script = None
try:
# get the first script that was executed
# this is usually the script that sets up the script to be executed
entry_script = UInt160(data=engine.ExecutedScriptHashes[0])
# ExecutedScriptHashes[1] will usually be the first contract executed
if len(engine.ExecutedScriptHashes) > 1:
entry_script = UInt160(data=engine.ExecutedScriptHashes[1])
except Exception as e:
logger.error("Could not get entry script: %s " % e)
payload = ContractParameter(ContractParameterType.Array, value=[])
for item in engine.ResultStack.Items:
payload.Value.append(ContractParameter.ToParameter(item))
if success:
# dispatch all notify events, along with the success of the contract execution
for notify_event_args in self.notifications:
self.events_to_dispatch.append(NotifyEvent(SmartContractEvent.RUNTIME_NOTIFY, notify_event_args.State,
notify_event_args.ScriptHash, height, tx_hash,
success, engine.testMode))
if engine.Trigger == Application:
self.events_to_dispatch.append(SmartContractEvent(SmartContractEvent.EXECUTION_SUCCESS, payload, entry_script,
height, tx_hash, success, engine.testMode))
else:
self.events_to_dispatch.append(SmartContractEvent(SmartContractEvent.VERIFICATION_SUCCESS, payload, entry_script,
height, tx_hash, success, engine.testMode))
else:
# when a contract exits in a faulted state
# we should display that in the notification
if not error:
error = 'Execution exited in a faulted state. Any payload besides this message contained in this event is the contents of the EvaluationStack of the current script context.'
payload.Value.append(ContractParameter(ContractParameterType.String, error))
# If we do not add the eval stack, then exceptions that are raised in a contract
# are not displayed to the event consumer
[payload.Value.append(ContractParameter.ToParameter(item)) for item in engine.CurrentContext.EvaluationStack.Items]
if engine.Trigger == Application:
self.events_to_dispatch.append(
SmartContractEvent(SmartContractEvent.EXECUTION_FAIL, payload,
entry_script, height, tx_hash, success, engine.testMode))
else:
self.events_to_dispatch.append(
SmartContractEvent(SmartContractEvent.VERIFICATION_FAIL, payload,
entry_script, height, tx_hash, success, engine.testMode))
self.notifications = []
def ExecutionCompleted(self, engine, success, error=None):
height = Blockchain.Default().Height + 1
tx_hash = None
if engine.ScriptContainer:
tx_hash = engine.ScriptContainer.Hash
if not tx_hash:
tx_hash = UInt256(data=bytearray(32))
entry_script = None
try:
# get the first script that was executed
# this is usually the script that sets up the script to be executed
entry_script = UInt160(data=engine.ExecutedScriptHashes[0])
# ExecutedScriptHashes[1] will usually be the first contract executed
if len(engine.ExecutedScriptHashes) > 1:
entry_script = UInt160(data=engine.ExecutedScriptHashes[1])
except Exception as e:
logger.error("Could not get entry script: %s " % e)
payload = ContractParameter(ContractParameterType.Array, value=[])
for item in engine.ResultStack.Items:
payload.Value.append(ContractParameter.ToParameter(item))
if success:
# dispatch all notify events, along with the success of the contract execution
for notify_event_args in self.notifications:
self.events_to_dispatch.append(
NotifyEvent(SmartContractEvent.RUNTIME_NOTIFY,
notify_event_args.State,
notify_event_args.ScriptHash, height, tx_hash,
success, engine.testMode))
if engine.Trigger == Application:
self.events_to_dispatch.append(
SmartContractEvent(SmartContractEvent.EXECUTION_SUCCESS,
payload, entry_script, height, tx_hash,
success, engine.testMode))
else:
self.events_to_dispatch.append(
SmartContractEvent(SmartContractEvent.VERIFICATION_SUCCESS,
payload, entry_script, height, tx_hash,
success, engine.testMode))
else:
payload.Value.append(
ContractParameter(ContractParameterType.String, error))
payload.Value.append(
ContractParameter(ContractParameterType.String,
engine._VMState))
if engine.Trigger == Application:
self.events_to_dispatch.append(
SmartContractEvent(SmartContractEvent.EXECUTION_FAIL,
payload, entry_script, height, tx_hash,
success, engine.testMode))
else:
self.events_to_dispatch.append(
SmartContractEvent(SmartContractEvent.VERIFICATION_FAIL,
payload, entry_script, height, tx_hash,
success, engine.testMode))
self.notifications = []