def To(self, request, context):
# => Block
# <= 如果高度增加 回傳 SYNCHRONIZATION ,否則 NOT_SYNCHRONIZATION
global __BranchTarget,flag
b = block.block.Block()
b.pb2 = request
print("=> [To] Block:%s" % b.pb2.blockhash)
status = block.block.Chain.addBlock(b.pb2.blockhash,b)
print("<= [To] Response:%sSYNCHRONIZATION" % ("" if "HEIGHT_ADD" == status else "NOT_") )
if "HEIGHT_ADD" == status:
flag = False
__BranchTarget = ""
return grpc_pb2.Message(value = "SYNCHRONIZATION")
return grpc_pb2.Message(value = "NOT_SYNCHRONIZATION")
def Hello(self, request, context):
global PORT, selfipport
selfIP = request.value[0:request.value.index('|')]
Node.add((selfIP, PORT))
selfipport = "%s:%s" % (selfIP, PORT)
nodePort = request.value[request.value.index('|') +
1:len(request.value)]
print("=> Node Port:%s" % nodePort)
port = talkYouIP(nodePort)
return grpc_pb2.Message(value=str(port))
def BlockBroadcast(self, request, context):
# => 區塊
# <= Status
block = Block()
block.pb2 = request
print("=> [Transaction]Block:%s" % block.pb2.blockhash)
status = Chain.addBlock(block.pb2.blockhash, block)
print("<= [Transaction]Status:%s" % status)
return grpc_pb2.Message(value=status)
def From(node, info):
# <= 給予區塊資訊
# => 返回高度
block = Block()
info = grpc_pb2.Message(value=str(info))
print("<= [From]info:%s" % str(info))
response = p2p.p2p.Node.send(node, SERVICE * SYNCHRONIZATION + FROM,
info)
print("=> [From]Block:%s" % str(response.blockhash))
block.pb2 = response
v = block.vertify()
if v == SUCCESS_VERTIFY:
Chain.addBlock(block.pb2.blockhash, block)
return int(block.pb2.height)
elif v == WARNING_PREVIOUS_HASH_NOT_EQUAL:
return -1
raise Exception("Error Block.py From()")
def grpcJoinNode(target):
global PORT, GET_SELFNODE_FALG, selfipport
target = str(target)
compi = re.compile('^(\d{0,3}\.\d{0,3}\.\d{0,3}\.\d{0,3}):(\d{1,5})$')
result = compi.match(target)
# 判斷是否存在且曾加入過
if result == None or (target in Node.getNodesList()):
return False
Node.add(target)
# 判斷是否已取得自己IP
if GET_SELFNODE_FALG:
return True
# Discovery.Hello()
ip = result.group(1)
print("<= grpc link to %s" % target)
channel = grpc.insecure_channel(target)
stub = grpc_pb2_grpc.DiscoveryStub(channel)
HelloResponse = None
try:
HelloResponse = stub.Hello(grpc_pb2.Message(
value="%s|%s" % (ip, PORT))) #target ip & self port
except:
return False
helloPort = HelloResponse.value
time.sleep(1)
# 因不知道自己IP 故需要請對方告知自己
# socket get my ip
print("=> hello port:%s" % helloPort)
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print("<= connect to socket will get myIP")
sock.connect((ip, int(helloPort)))
myIP = sock.recv(1024)
print("=> get myIP:%s" % myIP)
Node.add((myIP, PORT))
selfipport = "%s:%s" % (myIP, PORT)
GET_SELFNODE_FALG = True
return True