def __block_request_by_citizen(self, block_height):
rs_client = ObjectManager().channel_service.rs_client
get_block_result = rs_client.call(
RestMethod.GetBlockByHeight,
RestMethod.GetBlockByHeight.value.params(height=str(block_height)))
last_block = rs_client.call(RestMethod.GetLastBlock)
if not last_block:
raise exception.InvalidBlockSyncTarget(
"The Radiostation may not be ready. It will retry after a while."
)
max_height = self.blockchain.block_versioner.get_height(last_block)
block_version = self.blockchain.block_versioner.get_version(
block_height)
block_serializer = BlockSerializer.new(block_version,
self.blockchain.tx_versioner)
block = block_serializer.deserialize(get_block_result['block'])
votes_dumped: str = get_block_result.get('confirm_info', '')
try:
votes_serialized = json.loads(votes_dumped)
version = self.blockchain.block_versioner.get_version(block_height)
votes = Votes.get_block_votes_class(version).deserialize_votes(
votes_serialized)
except json.JSONDecodeError:
votes = votes_dumped
return block, max_height, -1, votes, message_code.Response.success
def __get_peer_stub_list(self):
"""It updates peer list for block manager refer to peer list on the loopchain network.
This peer list is not same to the peer list of the loopchain network.
:return max_height: a height of current blockchain
:return peer_stubs: current peer list on the loopchain network
"""
max_height = -1 # current max height
unconfirmed_block_height = -1
peer_stubs = [] # peer stub list for block height synchronization
if not ObjectManager().channel_service.is_support_node_function(
conf.NodeFunction.Vote):
rest_stub = ObjectManager().channel_service.radio_station_stub
peer_stubs.append(rest_stub)
last_block = rest_stub.call("GetLastBlock")
max_height = self.__blockchain.block_versioner.get_height(
last_block)
return max_height, unconfirmed_block_height, peer_stubs
# Make Peer Stub List [peer_stub, ...] and get max_height of network
peer_target = ChannelProperty().peer_target
peer_manager = ObjectManager().channel_service.peer_manager
target_dict = peer_manager.get_IP_of_peers_dict()
target_list = [
peer_target for peer_id, peer_target in target_dict.items()
if peer_id != ChannelProperty().peer_id
]
for target in target_list:
if target != peer_target:
logging.debug(f"try to target({target})")
channel = GRPCHelper().create_client_channel(target)
stub = loopchain_pb2_grpc.PeerServiceStub(channel)
try:
response = stub.GetStatus(
loopchain_pb2.StatusRequest(
request="",
channel=self.__channel_name,
), conf.GRPC_TIMEOUT_SHORT)
response.block_height = max(
response.block_height,
response.unconfirmed_block_height)
if response.block_height > max_height:
# Add peer as higher than this
max_height = response.block_height
unconfirmed_block_height = response.unconfirmed_block_height
peer_stubs.append(stub)
except Exception as e:
logging.warning(
f"This peer has already been removed from the block height target node. {e}"
)
return max_height, unconfirmed_block_height, peer_stubs
def _load_peers_from_rest_call():
rs_client = ObjectManager().channel_service.rs_client
crep_root_hash = conf.CHANNEL_OPTION[ChannelProperty().name].get(
'crep_root_hash')
reps = rs_client.call(RestMethod.GetReps,
RestMethod.GetReps.value.params(crep_root_hash))
return [{
"id": rep["address"],
"p2pEndpoint": rep["p2pEndpoint"]
} for rep in reps]
def __get_peer_stub_list(self) -> Tuple[int, int, List[Tuple]]:
"""It updates peer list for block manager refer to peer list on the loopchain network.
This peer list is not same to the peer list of the loopchain network.
:return max_height: a height of current blockchain
:return unconfirmed_block_height: unconfirmed_block_height on the network
:return peer_stubs: current peer list on the network (target, peer_stub)
"""
max_height = -1 # current max height
unconfirmed_block_height = -1
peer_stubs = [] # peer stub list for block height synchronization
if not ObjectManager().channel_service.is_support_node_function(
conf.NodeFunction.Vote):
rs_client = ObjectManager().channel_service.rs_client
status_response = rs_client.call(RestMethod.Status)
max_height = status_response['block_height']
peer_stubs.append((rs_client.target, rs_client))
return max_height, unconfirmed_block_height, peer_stubs
# Make Peer Stub List [peer_stub, ...] and get max_height of network
self.__block_height_sync_bad_targets = {
k: v
for k, v in self.__block_height_sync_bad_targets.items()
if v > self.blockchain.block_height
}
util.logger.info(
f"Bad Block Sync Peer : {self.__block_height_sync_bad_targets}")
peer_target = ChannelProperty().peer_target
my_height = self.blockchain.block_height
if self.blockchain.last_block:
reps_hash = self.blockchain.get_reps_hash_by_header(
self.blockchain.last_block.header)
else:
reps_hash = ChannelProperty().crep_root_hash
rep_targets = self.blockchain.find_preps_targets_by_roothash(reps_hash)
target_list = list(rep_targets.values())
for target in target_list:
if target == peer_target:
continue
if target in self.__block_height_sync_bad_targets:
continue
util.logger.debug(f"try to target({target})")
channel = GRPCHelper().create_client_channel(target)
stub = loopchain_pb2_grpc.PeerServiceStub(channel)
try:
response = stub.GetStatus(
loopchain_pb2.StatusRequest(
request='block_sync',
channel=self.__channel_name,
), conf.GRPC_TIMEOUT_SHORT)
target_block_height = max(response.block_height,
response.unconfirmed_block_height)
if target_block_height > my_height:
peer_stubs.append((target, stub))
max_height = max(max_height, target_block_height)
unconfirmed_block_height = max(
unconfirmed_block_height,
response.unconfirmed_block_height)
except Exception as e:
util.logger.warning(
f"This peer has already been removed from the block height target node. {e}"
)
return max_height, unconfirmed_block_height, peer_stubs
