async def block_height_sync_channel(self):
# leader 로 시작하지 않았는데 자신의 정보가 leader Peer 정보이면 block height sync 하여
# 최종 블럭의 leader 를 찾는다.
peer_manager = self.peer_manager
peer_leader = peer_manager.get_leader_peer()
self_peer_object = peer_manager.get_peer(ChannelProperty().peer_id)
is_delay_announce_new_leader = False
peer_old_leader = None
if peer_leader:
block_sync_target = peer_leader.target
block_sync_target_stub = StubManager.get_stub_manager_to_server(
block_sync_target,
loopchain_pb2_grpc.PeerServiceStub,
time_out_seconds=conf.CONNECTION_RETRY_TIMEOUT,
ssl_auth_type=conf.GRPC_SSL_TYPE)
else:
block_sync_target = ChannelProperty().radio_station_target
block_sync_target_stub = self.__radio_station_stub
if block_sync_target != ChannelProperty().peer_target:
if block_sync_target_stub is None:
logging.warning(
"You maybe Older from this network... or No leader in this network!"
)
is_delay_announce_new_leader = True
peer_old_leader = peer_leader
peer_leader = self.peer_manager.leader_complain_to_rs(
conf.ALL_GROUP_ID, is_announce_new_peer=False)
if peer_leader is not None and ChannelProperty(
).node_type == conf.NodeType.CommunityNode:
block_sync_target_stub = StubManager.get_stub_manager_to_server(
peer_leader.target,
loopchain_pb2_grpc.PeerServiceStub,
time_out_seconds=conf.CONNECTION_RETRY_TIMEOUT,
ssl_auth_type=conf.GRPC_SSL_TYPE)
if self.is_support_node_function(conf.NodeFunction.Vote) and \
(not peer_leader or peer_leader.peer_id == ChannelProperty().peer_id):
peer_leader = self_peer_object
self.block_manager.set_peer_type(loopchain_pb2.BLOCK_GENERATOR)
else:
_, future = self.block_manager.block_height_sync(
block_sync_target_stub)
await future
self.show_peers()
if is_delay_announce_new_leader and ChannelProperty(
).node_type == conf.NodeType.CommunityNode:
self.peer_manager.announce_new_leader(
peer_old_leader.peer_id,
peer_leader.peer_id,
self_peer_id=ChannelProperty().peer_id)
def run_radio_station_as_process_and_stub_manager(port):
process = run_radio_station_as_process(port)
stub_manager = StubManager.get_stub_manager_to_server(
'localhost:' + str(port), loopchain_pb2_grpc.RadioStationStub)
util.request_server_in_time(stub_manager.stub.GetStatus,
loopchain_pb2.StatusRequest(request=""))
return process, stub_manager
def __handler_connect_to_leader(self, request, context):
logging.debug(
f"TxService handler connect to leader({request.message})")
leader_target = request.message
self.__stub_to_leader = StubManager.get_stub_manager_to_server(
leader_target,
loopchain_pb2_grpc.PeerServiceStub,
time_out_seconds=conf.CONNECTION_RETRY_TIMEOUT,
is_allow_null_stub=True)
self.__peer_status = PeerProcessStatus.normal
# TODO block generator 연결 실패 조건 확인할 것
if self.__stub_to_leader is None:
return loopchain_pb2.Message(
code=message_code.Response.fail_connect_to_leader)
else:
try:
self.__create_tx_continue()
except Exception as e:
logging.warning(
"in tx service create tx continue() Exception: " + str(e))
self.__peer_status = PeerProcessStatus.leader_complained
return loopchain_pb2.Message(
code=message_code.Response.fail_add_tx_to_leader)
return loopchain_pb2.Message(code=message_code.Response.success)
def __handler_connect_to_leader(connect_to_leader_param):
# logging.debug("(tx process) try... connect to leader: " + str(connect_to_leader_param))
stub_to_leader = StubManager.get_stub_manager_to_server(
connect_to_leader_param,
loopchain_pb2_grpc.PeerServiceStub,
time_out_seconds=conf.CONNECTION_RETRY_TIMEOUT,
is_allow_null_stub=True)
__process_variables[
self.PROCESS_VARIABLE_STUB_TO_LEADER] = stub_to_leader
stub_to_self_peer = __process_variables[
self.PROCESS_VARIABLE_STUB_TO_SELF_PEER]
__process_variables[
self.PROCESS_VARIABLE_PEER_STATUS] = PeerProcessStatus.normal
# TODO block generator 연결 실패 조건 확인할 것
if stub_to_leader is None:
stub_to_self_peer.call(
"NotifyProcessError",
loopchain_pb2.CommonRequest(
request="Connect to leader Fail!"))
else:
try:
create_tx_continue(stub_to_leader)
except Exception as e:
logging.warning(
"in peer_process::connect_to_blockgenerator Exception: "
+ str(e))
__process_variables[
self.
PROCESS_VARIABLE_PEER_STATUS] = PeerProcessStatus.leader_complained
stub_to_self_peer.call(
"NotifyLeaderBroken",
loopchain_pb2.CommonRequest(
request="Fail Add Tx to Leader"))
def __handler_subscribe(subscribe_peer_target):
# logging.debug("BroadcastProcess received subscribe command peer_target: " + str(subscribe_peer_target))
if subscribe_peer_target not in __audience:
stub_manager = StubManager.get_stub_manager_to_server(
subscribe_peer_target,
loopchain_pb2_grpc.PeerServiceStub,
is_allow_null_stub=True)
__audience[subscribe_peer_target] = stub_manager
def stub_to_radiostation(self) -> StubManager:
if self.__stub_to_radio_station is None:
self.__stub_to_radio_station = StubManager.get_stub_manager_to_server(
self.__radio_station_target,
loopchain_pb2_grpc.RadioStationStub,
conf.CONNECTION_RETRY_TIMEOUT_TO_RS)
return self.__stub_to_radio_station
def __init_radio_station_stub(self):
if self.is_support_node_function(conf.NodeFunction.Vote):
self.__radio_station_stub = StubManager.get_stub_manager_to_server(
ChannelProperty().radio_station_target,
loopchain_pb2_grpc.RadioStationStub,
conf.CONNECTION_RETRY_TIMEOUT_TO_RS,
ssl_auth_type=conf.GRPC_SSL_TYPE)
else:
self.__radio_station_stub = RestStubManager(ChannelProperty().radio_station_target, ChannelProperty().name)
def __handler_subscribe(subscribe_peer_target):
# logging.debug("BroadcastProcess received subscribe command peer_target: " + str(subscribe_peer_target))
if subscribe_peer_target not in __audience:
stub_manager = StubManager.get_stub_manager_to_server(
subscribe_peer_target, loopchain_pb2_grpc.PeerServiceStub,
time_out_seconds=conf.CONNECTION_RETRY_TIMEOUT_WHEN_INITIAL,
is_allow_null_stub=True
)
__audience[subscribe_peer_target] = stub_manager
def run_peer_server_as_process_and_stub_manager(
port,
radiostation_port=conf.PORT_RADIOSTATION,
group_id=None,
score=None):
process = run_peer_server_as_process(port, radiostation_port, group_id,
score)
stub_manager = StubManager.get_stub_manager_to_server(
'localhost:' + str(port), loopchain_pb2_grpc.PeerServiceStub)
return process, stub_manager
def __handler_subscribe(self, audience_target):
logging.debug("BroadcastThread received subscribe command peer_target: " + str(audience_target))
if audience_target not in self.__audience:
stub_manager = StubManager.get_stub_manager_to_server(
audience_target, loopchain_pb2_grpc.PeerServiceStub,
time_out_seconds=conf.CONNECTION_RETRY_TIMEOUT_WHEN_INITIAL,
is_allow_null_stub=True,
ssl_auth_type=conf.GRPC_SSL_TYPE
)
self.__audience[audience_target] = stub_manager
def __handler_connect_to_self_peer(connect_param):
# 자신을 생성한 부모 Peer 에 접속하기 위한 stub 을 만든다.
# pipe 를 통한 return 은 pipe send 와 쌍이 맞지 않은 경우 오류를 발생시킬 수 있다.
# 안전한 연결을 위하여 부모 프로세스와도 gRPC stub 을 이용하여 통신한다.
logging.debug("try connect to self peer: " + str(connect_param))
stub_to_self_peer = StubManager.get_stub_manager_to_server(
connect_param, loopchain_pb2_grpc.InnerServiceStub,
time_out_seconds=conf.CONNECTION_RETRY_TIMEOUT_WHEN_INITIAL,
is_allow_null_stub=True
)
__process_variables[self.SELF_PEER_TARGET_KEY] = connect_param
__process_variables[self.PROCESS_VARIABLE_STUB_TO_SELF_PEER] = stub_to_self_peer
def __handler_connect_to_inner_peer(self, request, context):
logging.debug(
f"TxService handler connect to inner peer({request.message})")
inner_peer_target = request.message
# 자신을 생성한 부모 Peer 에 접속하기 위한 stub 을 만든다.
# pipe 를 통한 return 은 pipe send 와 쌍이 맞지 않은 경우 오류를 발생시킬 수 있다.
# 안전한 연결을 위하여 부모 프로세스와도 gRPC stub 을 이용하여 통신한다.
self.__stub_to_inner_peer = StubManager.get_stub_manager_to_server(
inner_peer_target,
loopchain_pb2_grpc.InnerServiceStub,
time_out_seconds=conf.CONNECTION_RETRY_TIMEOUT,
is_allow_null_stub=True)
logging.debug("try connect to inner peer: " + str(inner_peer_target))
return loopchain_pb2.Message(code=message_code.Response.success)
def stub_to_radiostation(self):
if self.__radio_station_stub is None:
if self.is_support_node_function(conf.NodeFunction.Vote):
if conf.ENABLE_REP_RADIO_STATION:
self.__radio_station_stub = StubManager.get_stub_manager_to_server(
self.__radio_station_target,
loopchain_pb2_grpc.RadioStationStub,
conf.CONNECTION_RETRY_TIMEOUT_TO_RS,
ssl_auth_type=conf.GRPC_SSL_TYPE)
else:
self.__radio_station_stub = None
else:
self.__radio_station_stub = RestStubManager(
self.__radio_station_target)
return self.__radio_station_stub
def stub_to_radiostation(self) -> StubManager:
stub_type = loopchain_pb2_grpc.PeerServiceStub
if self.is_support_node_function(conf.NodeFunction.Vote):
stub_type = loopchain_pb2_grpc.RadioStationStub
if self.__radio_station_stub is None:
if self.is_support_node_function(conf.NodeFunction.Vote):
self.__radio_station_stub = StubManager.get_stub_manager_to_server(
self.__radio_station_target,
stub_type,
conf.CONNECTION_RETRY_TIMEOUT_TO_RS,
ssl_auth_type=conf.GRPC_SSL_TYPE)
else:
self.__radio_station_stub = RestStubManager(
self.__radio_station_target)
return self.__radio_station_stub
def load_score_container_each(self, channel_name: str, score_package: str,
container_port: int, peer_target: str):
"""create score container and save score_info and score_stub
:param channel_name: channel name
:param score_package: load score package name
:param container_port: score container port
:return:
"""
score_info = None
retry_times = 1
while score_info is None:
if util.check_port_using(conf.IP_PEER, container_port) is False:
util.logger.spam(
f"channel_manager:load_score_container_each init ScoreService port({container_port})"
)
self.__score_containers[channel_name] = ScoreService(
container_port)
self.__score_stubs[
channel_name] = StubManager.get_stub_manager_to_server(
conf.IP_PEER + ':' + str(container_port),
loopchain_pb2_grpc.ContainerStub,
is_allow_null_stub=True)
score_info = self.__load_score(
score_package, self.get_score_container_stub(channel_name),
peer_target)
if score_info is not None or retry_times >= conf.SCORE_LOAD_RETRY_TIMES:
break
else:
util.logger.spam(
f"channel_manager:load_score_container_each score_info load fail retry({retry_times})"
)
retry_times += 1
time.sleep(conf.SCORE_LOAD_RETRY_INTERVAL)
if score_info is None:
return False
self.__score_infos[channel_name] = score_info
return True
def __handler_connect_to_self_peer(connect_param):
# 자신을 생성한 부모 Peer 에 접속하기 위한 stub 을 만든다.
# pipe 를 통한 return 은 pipe send 와 쌍이 맞지 않은 경우 오류를 발생시킬 수 있다.
# 안전한 연결을 위하여 부모 프로세스와도 gRPC stub 을 이용하여 통신한다.
logging.debug("try connect to self peer: " + str(connect_param))
stub_to_self_peer = StubManager.get_stub_manager_to_server(
connect_param,
loopchain_pb2_grpc.InnerServiceStub,
time_out_seconds=conf.CONNECTION_RETRY_TIMEOUT,
is_allow_null_stub=True)
__process_variables[
self.PROCESS_VARIABLE_STUB_TO_SELF_PEER] = stub_to_self_peer
response = util.request_server_wait_response(
stub_to_self_peer.stub.GetStatus,
loopchain_pb2.StatusRequest(
request="(tx process) connect to self peer"))
logging.debug("connect to inner channel: " + str(response))
def __run_inner_services(self, port):
if conf.ENABLE_REST_SERVICE:
self.__rest_service = RestService(int(port))
self.__score_service = ScoreService(
int(port) + conf.PORT_DIFF_SCORE_CONTAINER)
# TODO tx service 는 더이상 사용하지 않는다. 하지만 이 로직을 제거하면 블록체인 네트워크가 정상적으로 형성되지 않는
# 버그가 발생한다. 원인 파악 필요함
self.__tx_service = TxService(int(port) + conf.PORT_DIFF_TX_CONTAINER)
# TODO stub to score service Connect 확인을 util 로 할 수 있게 수정하기
# self.__stub_to_score_service = util.get_stub_to_server('localhost:' +
# str(int(port) + conf.PORT_DIFF_SCORE_CONTAINER),
# loopchain_pb2_grpc.ContainerStub)
self.__stub_to_score_service = StubManager.get_stub_manager_to_server(
conf.IP_PEER + ':' +
str(int(port) + conf.PORT_DIFF_SCORE_CONTAINER),
loopchain_pb2_grpc.ContainerStub,
is_allow_null_stub=True)
def set_stub_port(self, port):
self.__stub_to_rs_service = StubManager.get_stub_manager_to_server(
conf.IP_LOCAL + ':' + str(port), loopchain_pb2_grpc.RadioStationStub
)
def __connect_to_radiostation(self):
"""RadioStation 접속
:return: 접속정보, 실패시 None
"""
logging.debug("try to connect to radiostation")
self.__stub_to_radio_station = StubManager.get_stub_manager_to_server(
self.__radio_station_target, loopchain_pb2_grpc.RadioStationStub,
conf.CONNECTION_RETRY_TIMEOUT_TO_RS)
if self.__stub_to_radio_station is None:
logging.warning("fail make stub to Radio Station!!")
return None
token = None
if self.__auth.is_secure:
self.__peer_object = self.__peer_manager.get_peer(self.peer_id)
token = None
if self.__peer_object is not None:
token = self.__peer_object.token
logging.debug("Self Peer Token : %s", token)
# 토큰 유효시간이 지나면 다시 생성 요청
if token is not None and self.__auth.get_token_time(token) is None:
token = None
self.__auth.set_peer_info(self.peer_id, self.__peer_target,
self.group_id, self.__peer_type)
cert_bytes = self.__auth.get_cert_bytes()
if token is None:
# 서버로부터 난수 수신
# response = util.request_server_in_time(self.__stub_to_radio_station.ConnectPeer,
# loopchain_pb2.PeerRequest(
# peer_object=b'',
# peer_id=self.peer_id,
# peer_target=self.__peer_target,
# group_id=self.group_id,
# peer_type=self.__peer_type,
# token=conf.TOKEN_TYPE_CERT + cert_bytes.hex())
# )
response = self.__stub_to_radio_station.call(
"ConnectPeer",
loopchain_pb2.PeerRequest(peer_object=b'',
peer_id=self.peer_id,
peer_target=self.__peer_target,
group_id=self.group_id,
peer_type=self.__peer_type,
token=conf.TOKEN_TYPE_CERT +
cert_bytes.hex()),
conf.GRPC_TIMEOUT)
rand_key = None
if response is not None and response.status == message_code.Response.success:
logging.debug("Received Random : %s", response.more_info)
if len(response.more_info) is not 32:
# 토큰 크기가 16바이트가 아니면 접속을 할 수 없습니다.
logging.debug('서버로부터 수신한 토큰 길이는 16바이트가 되어야 합니다.')
else:
rand_key = response.more_info
else:
return response
# 난수와 Peer 정보에 서명
if rand_key is None:
return None
else:
sign = self.__auth.generate_request_sign(rand_key=rand_key)
token = conf.TOKEN_TYPE_SIGN + sign.hex()
else:
self.__auth.add_token(token)
# 공통 부분
# response = util.request_server_in_time(self.__stub_to_radio_station.ConnectPeer,
# loopchain_pb2.PeerRequest(
# peer_object=b'',
# peer_id=self.peer_id,
# peer_target=self.__peer_target,
# group_id=self.group_id,
# peer_type=self.__peer_type,
# token=token
# ))
response = self.__stub_to_radio_station.call(
"ConnectPeer",
loopchain_pb2.PeerRequest(peer_object=b'',
peer_id=self.peer_id,
peer_target=self.__peer_target,
group_id=self.group_id,
peer_type=self.__peer_type,
token=token),
conf.GRPC_CONNECTION_TIMEOUT)
if response is not None and response.status == message_code.Response.success:
if self.__auth.is_secure:
logging.debug("Received Token : %s", response.more_info)
# Radiostation으로부터 수신한 토큰 검증
if len(response.more_info) < 9:
# 토큰 크기가 8 + 1바이트 보다 크지 아니면 접속을 할 수 없습니다.
logging.debug('서버로부터 수신한 토큰 길이는 9바이트 이상이 되어야 합니다.')
response.status = message_code.Response.fail_validate_params
response.more_info = "Invalid Token Data"
else:
token = response.more_info
tag = token[:2]
if tag == conf.TOKEN_TYPE_TOKEN:
if self.__auth.verify_token(token):
logging.debug("토큰 검증에 성공하였습니다.")
self.__auth.add_token(token)
else:
logging.debug("토큰 검증에 실패하였습니다.")
response.status = message_code.Response.fail_validate_params
response.more_info = "Invalid Token Signature"
logging.debug("Connect to radiostation: " + str(response))
is_peer_list_from_rs = False
if response is not None and response.status == message_code.Response.success:
# RS 의 응답이 있으면 peer_list 는 RS 가 전달한 결과로 업데이트 된다.
# 없는 경우 local 의 level DB 로 부터 읽어드린 값을 default 로 사용하게 된다.
# TODO RS 는 어떻게 신뢰하지? RS 가 새로운 피어의 참여를 승인하더라도 참여한 피어 목록은 더 신뢰할만한 방식으로 보호가 필요하지 않나?
# 누군가 RS 를 죽인다면 RS 인척 가짜로 이루어진 피어 리스트를 전송하면 네트워크를 파괴할 수 있지 않나?
# 피어의 참여는 RS 가 승인한 다음 블록에 담아서 블록체인에 추가하면 어떨까?
peer_list_data = pickle.loads(response.peer_list)
self.__peer_manager.load(peer_list_data, False)
self.__common_service.save_peer_list(self.__peer_manager)
logging.debug("peer list update: " +
self.__peer_manager.get_peers_for_debug())
is_peer_list_from_rs = True
else:
logging.debug("using local peer list: " +
self.__peer_manager.get_peers_for_debug())
return is_peer_list_from_rs
def serve(self, port, score=conf.DEFAULT_SCORE_PACKAGE):
"""피어 실행
:param port: 피어의 실행포트
:param score: 피어의 실행 체인코드
"""
stopwatch_start = timeit.default_timer()
is_all_service_safe_start = True
is_delay_announce_new_leader = False
self.__port_init(port)
self.__run_inner_services(port)
inner_service_port = conf.PORT_INNER_SERVICE or (
int(port) + conf.PORT_DIFF_INNER_SERVICE)
self.__common_service = CommonService(loopchain_pb2,
self.__peer_target,
inner_service_port)
self.peer_id = str(self.__common_service.get_peer_id())
self.__peer_manager = self.__common_service.load_peer_manager()
self.__block_manager = self.__load_block_manager()
response = self.__connect_to_radiostation()
logging.debug("Connect to radiostation: " + str(response))
is_peer_list_from_rs = False
if response is not None and response.status == message_code.Response.success:
# RS 의 응답이 있으면 peer_list 는 RS 가 전달한 결과로 업데이트 된다.
# 없는 경우 local 의 level DB 로 부터 읽어드린 값을 default 로 사용하게 된다.
# TODO RS 는 어떻게 신뢰하지? RS 가 새로운 피어의 참여를 승인하더라도 참여한 피어 목록은 더 신뢰할만한 방식으로 보호가 필요하지 않나?
# 누군가 RS 를 죽인다면 RS 인척 가짜로 이루어진 피어 리스트를 전송하면 네트워크를 파괴할 수 있지 않나?
# 피어의 참여는 RS 가 승인한 다음 블록에 담아서 블록체인에 추가하면 어떨까?
peer_list_data = pickle.loads(response.peer_list)
self.__peer_manager.load(peer_list_data, False)
self.__common_service.save_peer_list(self.__peer_manager)
logging.debug("peer list update: " +
self.__peer_manager.get_peers_for_debug())
is_peer_list_from_rs = True
else:
logging.debug("using local peer list: " +
self.__peer_manager.get_peers_for_debug())
logging.debug("peer_id: " + str(self.peer_id))
if self.__peer_manager.get_peer_count() == 0:
util.exit_and_msg(
"There is no peer_list, initial network is not allowed without RS!"
)
peer_self = self.__peer_manager.get_peer(self.peer_id, self.group_id)
logging.debug("peer_self: " + str(peer_self))
peer_leader = self.__peer_manager.get_leader_peer(
is_complain_to_rs=True)
logging.debug("peer_leader: " + str(peer_leader))
# TODO LOOPCHAIN-61 인증서 로드
_cert = None
# TODO LOOPCHAIN-61 인증서 키로드
_private_key = None
# TODO 인증정보 요청
# TODO 이 부분을 조건 검사가 아니라 leader complain 을 이용해서 리더가 되도록 하는 방법 검토하기
if peer_self.peer_id == peer_leader.peer_id:
# 자기가 peer_list 의 유일한 connected PEER 이거나 rs 의 leader 정보와 같을 때 block generator 가 된다.
if is_peer_list_from_rs is True or self.__peer_manager.get_connected_peer_count(
None) == 1:
logging.debug("Set Peer Type Block Generator!")
self.__peer_type = loopchain_pb2.BLOCK_GENERATOR
# load score 는 score 서비스가 시작된 이후 block height sync 가 시작되기전에 이루어져야 한다.
is_all_service_safe_start &= self.__load_score(score)
if self.__peer_type == loopchain_pb2.PEER:
# leader 로 시작하지 않았는데 자신의 정보가 leader Peer 정보이면 block height sync 하여
# 최종 블럭의 leader 를 찾는다.
if peer_leader.target != self.__peer_target:
block_sync_target_stub = StubManager.get_stub_manager_to_server(
peer_leader.target,
loopchain_pb2_grpc.PeerServiceStub,
time_out_seconds=conf.GRPC_TIMEOUT)
else:
block_sync_target_stub = None
if block_sync_target_stub is None:
logging.warning(
"You maybe Older from this network... or No leader in this network!"
)
# TODO 이 상황에서 rs 에 leader complain 을 진행한다
is_delay_announce_new_leader = True
peer_old_leader = peer_leader
peer_leader = self.__peer_manager.leader_complain_to_rs(
conf.ALL_GROUP_ID, is_announce_new_peer=False)
if peer_leader is not None:
block_sync_target_stub = StubManager.get_stub_manager_to_server(
peer_leader.target,
loopchain_pb2_grpc.PeerServiceStub,
time_out_seconds=conf.GRPC_TIMEOUT)
if peer_leader is None or peer_leader.peer_id == peer_self.peer_id:
peer_leader = peer_self
self.__peer_type = loopchain_pb2.BLOCK_GENERATOR
else:
self.block_height_sync(block_sync_target_stub)
# # TODO 마지막 블럭으로 leader 정보를 판단하는 로직은 리더 컴플레인 알고리즘 수정 후 유효성을 다시 판단할 것
# last_block_peer_id = self.__block_manager.get_blockchain().last_block.peer_id
#
# if last_block_peer_id != "" and last_block_peer_id != self.__peer_list.get_leader_peer().peer_id:
# logging.debug("make leader stub after block height sync...")
# new_leader_peer = self.__peer_list.get_peer(last_block_peer_id)
#
# if new_leader_peer is None:
# new_leader_peer = self.__peer_list.leader_complain_to_rs(conf.ALL_GROUP_ID)
#
# self.__peer_list.set_leader_peer(new_leader_peer, None)
# # TODO 리더가 상단의 next_leader_pear 와 같을 경우 stub 을 재설정하게 되는데 문제 없는지 확인 할 것
# self.__stub_to_blockgenerator = self.__peer_list.get_peer_stub_manager(new_leader_peer)
# peer_leader = new_leader_peer
# else:
# self.__stub_to_blockgenerator = block_sync_target_stub
self.__stub_to_blockgenerator = block_sync_target_stub
if self.__stub_to_blockgenerator is None:
util.exit_and_msg("Fail connect to leader!!")
self.show_peers()
self.__common_service.set_peer_type(self.__peer_type)
if self.__peer_type == loopchain_pb2.BLOCK_GENERATOR:
self.__block_manager.set_peer_type(self.__peer_type)
loopchain_pb2_grpc.add_PeerServiceServicer_to_server(
self.__outer_service, self.__common_service.outer_server)
loopchain_pb2_grpc.add_InnerServiceServicer_to_server(
self.__inner_service, self.__common_service.inner_server)
logging.info("Start peer service at port: " + str(port))
self.__block_manager.start()
self.__common_service.start(port, self.peer_id, self.group_id)
if self.__stub_to_radio_station is not None:
self.__common_service.subscribe(self.__stub_to_radio_station)
# Start Peer Process for gRPC send to Block Generator
# But It use only when create tx (yet)
logging.debug("peer_leader target is: " + str(peer_leader.target))
self.__tx_process = self.__run_tx_process(
blockgenerator_info=peer_leader.target,
inner_channel_info=conf.IP_LOCAL + ":" + str(inner_service_port))
if self.__stub_to_blockgenerator is not None:
self.__common_service.subscribe(self.__stub_to_blockgenerator,
loopchain_pb2.BLOCK_GENERATOR)
if is_delay_announce_new_leader:
self.__peer_manager.announce_new_leader(peer_old_leader.peer_id,
peer_leader.peer_id)
self.__send_to_process_thread = SendToProcess(self.__tx_process)
self.__send_to_process_thread.start()
stopwatch_duration = timeit.default_timer() - stopwatch_start
logging.info(
f"Start Peer Service start duration({stopwatch_duration})")
# service 종료를 기다린다.
if is_all_service_safe_start:
self.__common_service.wait()
else:
self.service_stop()
self.__send_to_process_thread.stop()
self.__send_to_process_thread.wait()
logging.info("Peer Service Ended.")
self.__score_service.stop()
if self.__rest_service is not None:
self.__rest_service.stop()
self.__tx_service.stop()
self.__stop_tx_process()
def __connect_to_radiostation(self):
"""RadioStation 접속
:return: 접속정보, 실패시 None
"""
logging.debug("try to connect to radiostation")
self.__stub_to_radio_station = StubManager.get_stub_manager_to_server(
self.__radio_station_target, loopchain_pb2_grpc.RadioStationStub,
conf.CONNECTION_RETRY_TIMEOUT_TO_RS)
if self.__stub_to_radio_station is None:
logging.warning("fail make stub to Radio Station!!")
return None
token = None
if self.__auth.is_secure:
peer_self = self.__peer_manager.get_peer(self.peer_id)
token = None
if peer_self is not None:
token = peer_self.token
logging.debug("Self Peer Token : %s", token)
# 토큰 유효시간이 지나면 다시 생성 요청
if token is not None and self.__auth.get_token_time(token) is None:
token = None
self.__auth.set_peer_info(self.peer_id, self.__peer_target,
self.group_id, self.__peer_type)
cert_bytes = self.__auth.get_cert_bytes()
if token is None:
# 서버로부터 난수 수신
# response = util.request_server_in_time(self.__stub_to_radio_station.ConnectPeer,
# loopchain_pb2.PeerRequest(
# peer_object=b'',
# peer_id=self.peer_id,
# peer_target=self.__peer_target,
# group_id=self.group_id,
# peer_type=self.__peer_type,
# token=conf.TOKEN_TYPE_CERT + cert_bytes.hex())
# )
response = self.__stub_to_radio_station.call(
"ConnectPeer",
loopchain_pb2.PeerRequest(peer_object=b'',
peer_id=self.peer_id,
peer_target=self.__peer_target,
group_id=self.group_id,
peer_type=self.__peer_type,
token=conf.TOKEN_TYPE_CERT +
cert_bytes.hex()),
conf.GRPC_TIMEOUT)
rand_key = None
if response is not None and response.status == message_code.Response.success:
logging.debug("Received Random : %s", response.more_info)
if len(response.more_info) is not 32:
# 토큰 크기가 16바이트가 아니면 접속을 할 수 없습니다.
logging.debug('서버로부터 수신한 토큰 길이는 16바이트가 되어야 합니다.')
else:
rand_key = response.more_info
else:
return response
# 난수와 Peer 정보에 서명
if rand_key is None:
return None
else:
sign = self.__auth.generate_request_sign(rand_key=rand_key)
token = conf.TOKEN_TYPE_SIGN + sign.hex()
else:
self.__auth.add_token(token)
# 공통 부분
# response = util.request_server_in_time(self.__stub_to_radio_station.ConnectPeer,
# loopchain_pb2.PeerRequest(
# peer_object=b'',
# peer_id=self.peer_id,
# peer_target=self.__peer_target,
# group_id=self.group_id,
# peer_type=self.__peer_type,
# token=token
# ))
response = self.__stub_to_radio_station.call(
"ConnectPeer",
loopchain_pb2.PeerRequest(peer_object=b'',
peer_id=self.peer_id,
peer_target=self.__peer_target,
group_id=self.group_id,
peer_type=self.__peer_type,
token=token),
conf.GRPC_CONNECTION_TIMEOUT)
if response is not None and response.status == message_code.Response.success:
if self.__auth.is_secure:
logging.debug("Received Token : %s", response.more_info)
# Radiostation으로부터 수신한 토큰 검증
if len(response.more_info) < 9:
# 토큰 크기가 8 + 1바이트 보다 크지 아니면 접속을 할 수 없습니다.
logging.debug('서버로부터 수신한 토큰 길이는 9바이트 이상이 되어야 합니다.')
response.status = message_code.Response.fail_validate_params
response.more_info = "Invalid Token Data"
else:
token = response.more_info
tag = token[:2]
if tag == conf.TOKEN_TYPE_TOKEN:
if self.__auth.verify_token(token):
logging.debug("토큰 검증에 성공하였습니다.")
self.__auth.add_token(token)
else:
logging.debug("토큰 검증에 실패하였습니다.")
response.status = message_code.Response.fail_validate_params
response.more_info = "Invalid Token Signature"
return response
def __block_height_sync_channel(self, channel_name):
# leader 로 시작하지 않았는데 자신의 정보가 leader Peer 정보이면 block height sync 하여
# 최종 블럭의 leader 를 찾는다.
block_sync_target_stub = None
peer_manager = self.__channel_manager.get_peer_manager(channel_name)
peer_leader = peer_manager.get_leader_peer()
self_peer_object = peer_manager.get_peer(self.__peer_id)
is_delay_announce_new_leader = False
peer_old_leader = None
if peer_leader.target != self.__peer_target:
block_sync_target_stub = StubManager.get_stub_manager_to_server(
peer_leader.target,
loopchain_pb2_grpc.PeerServiceStub,
time_out_seconds=conf.CONNECTION_RETRY_TIMEOUT)
if block_sync_target_stub is None:
logging.warning(
"You maybe Older from this network... or No leader in this network!"
)
# TODO 이 상황에서 rs 에 leader complain 을 진행한다
is_delay_announce_new_leader = True
peer_old_leader = peer_leader
peer_leader = self.__channel_manager.get_peer_manager(
channel_name).leader_complain_to_rs(
conf.ALL_GROUP_ID, is_announce_new_peer=False)
if peer_leader is not None:
block_sync_target_stub = StubManager.get_stub_manager_to_server(
peer_leader.target,
loopchain_pb2_grpc.PeerServiceStub,
time_out_seconds=conf.CONNECTION_RETRY_TIMEOUT)
if peer_leader is None or peer_leader.peer_id == self.__peer_id:
peer_leader = self_peer_object
self.__channel_manager.get_block_manager(
channel_name).set_peer_type(loopchain_pb2.BLOCK_GENERATOR)
else:
self.__channel_manager.get_block_manager(
channel_name).block_height_sync(block_sync_target_stub)
# # TODO 마지막 블럭으로 leader 정보를 판단하는 로직은 리더 컴플레인 알고리즘 수정 후 유효성을 다시 판단할 것
# last_block_peer_id = self.__channel_manager.get_block_manager().get_blockchain().last_block.peer_id
#
# if last_block_peer_id != "" and last_block_peer_id != self.__peer_list.get_leader_peer().peer_id:
# logging.debug("make leader stub after block height sync...")
# new_leader_peer = self.__peer_list.get_peer(last_block_peer_id)
#
# if new_leader_peer is None:
# new_leader_peer = self.__peer_list.leader_complain_to_rs(conf.ALL_GROUP_ID)
#
# self.__peer_list.set_leader_peer(new_leader_peer, None)
# # TODO 리더가 상단의 next_leader_pear 와 같을 경우 stub 을 재설정하게 되는데 문제 없는지 확인 할 것
# peer_leader = new_leader_peer
# else:
if block_sync_target_stub is None:
util.exit_and_msg("Fail connect to leader!!")
self.show_peers(channel_name)
if block_sync_target_stub is not None:
self.__common_service.subscribe(channel_name,
block_sync_target_stub,
loopchain_pb2.BLOCK_GENERATOR)
if is_delay_announce_new_leader:
self.__channel_manager.get_peer_manager(
channel_name).announce_new_leader(peer_old_leader.peer_id,
peer_leader.peer_id)
