def beacon_attestation_validator(msg_forwarder: ID,
msg: rpc_pb2.Message) -> bool:
try:
attestation = ssz.decode(msg.data, sedes=Attestation)
except (TypeError, ssz.DeserializationError) as error:
# Not correctly encoded
logger.debug(
bold_red(
"Failed to deserialize Attestation from %s, error=%s"),
encode_hex(msg.data),
str(error),
)
return False
state = chain.get_head_state()
state_machine = chain.get_state_machine()
try:
validate_voting_beacon_block(chain, attestation)
validate_attestation_signature(
state,
attestation,
CommitteeConfig(state_machine.config),
)
except InvalidGossipMessage as error:
logger.debug("%s", str(error))
return False
else:
return True
def committee_index_beacon_attestation_validator(
msg_forwarder: ID, msg: rpc_pb2.Message) -> bool:
try:
attestation = ssz.decode(msg.data, sedes=Attestation)
except (TypeError, ssz.DeserializationError) as error:
# Not correctly encoded
logger.debug(
bold_red("Failed to validate attestation=%s, error=%s"),
encode_hex(msg.data),
str(error),
)
return False
state_machine = chain.get_state_machine()
state = chain.get_head_state()
try:
validate_subnet_id(attestation, subnet_id)
validate_is_unaggregated(attestation)
validate_voting_beacon_block(chain, attestation)
validate_attestation_propagation_slot_range(
state,
attestation,
ATTESTATION_PROPAGATION_SLOT_RANGE,
)
validate_attestation_signature(
state,
attestation,
CommitteeConfig(state_machine.config),
)
except InvalidGossipMessage as error:
logger.debug("%s", str(error))
return False
else:
return True