def start_peermgr() -> bool:
if nodeproperty.My_IP_address != peermgr_IP:
monitoring.log('log.Only a node with a predefined IP can run PeerMgr.')
return False
monitoring.log(
'log.Start listening thread to wait for connection of PeerConnector.')
listening_to_peerconnector_thr = ListeningToPeerConnectorThread(
1, "ListeningToPeerConnectorThread",
peermgr_IP, peermgr_Port,
connectedPeer_rcvddata_q, connectedPeer_socket_q, connectedPeer_IP_q
)
listening_to_peerconnector_thr.start()
monitoring.log(
'log.The listening thread is started to wait for the connection of PeerConnector.')
monitoring.log('log.Start a thread to manage ConnectedPeerList.')
managing_peertable_thr = ManagingConnectedPeerListThread(
1, "ManagingConnectedPeerListThread",
Predefined_peer_list,
connectedPeer_rcvddata_q, connectedPeer_socket_q, connectedPeer_IP_q
)
managing_peertable_thr.start()
monitoring.log(
'log.The thread to manage the ConnectedPeerList has started.')
return True
def genesisblock_generate():
transaction = "Base lab logchain project"
prev_hash = "N/A"
nonce = "N/A"
merkle_root = hashlib.sha256(str(transaction).encode('utf-8')).hexdigest()
vote_result = "N/A"
timestamp = "20170904"
block_header = block.BlockHeader(prev_hash, nonce, merkle_root,
vote_result, timestamp)
block_header.block_id = 'genesis_block'
block_header.block_number = "1"
block_header.block_info = block_header.prev_hash + block_header.merkle_root
block_header.block_hash = hashlib.sha256(
str(block_header.block_info).encode('utf-8')).hexdigest()
block_header.miner = "Base Lab"
block_header.num_tx = "1"
genesisblock = block.Block(block_header, transaction)
json_genesisblock = json.dumps(genesisblock,
indent=4,
default=lambda o: o.__dict__,
sort_keys=True)
file_controller.create_new_block(str(block_header.block_number),
json_genesisblock)
monitoring.log('log.Genesis block created now.')
monitoring.log("log. - block hash: " + block_header.block_hash)
monitoring.log("log. - block ID: " + block_header.block_id)
monitoring.log("log. - block info: " + block_header.block_info)
monitoring.log("log. - block transaction: " + transaction)
def initialize():
monitoring.log('log.Start the blockchain initialization process...')
file_controller.remove_all_transactions()
file_controller.remove_all_blocks()
file_controller.remove_all_voting()
monitoring.log('log.Complete the blockchain initialization process...')
set_peer.init_myIP()
def get_last_block():
block_list = []
block_list_size = 0
for (path, dir, files) in os.walk(block_storage_path):
block_list = files
block_list_size = len(files)
j = 0
for i in block_list:
block_list[j] = int(i)
j = j + 1
# last_block_file_name = block_list[-1]
last_block_file_name = str(block_list_size)
monitoring.log("log.last_block_file_name is .. "+ last_block_file_name)
# monitoring.log("log."+last_block_file_name+type(last_block_file_name))
last_block_tx_list = read_all_line(
str(block_storage_path) + last_block_file_name)
last_block = "\n".join(last_block_tx_list)
a = json.loads(last_block)
return a['block_header']['block_number'], a['block_header']['block_hash']
def remove_all_blocks():
try:
shutil.rmtree(block_storage_path)
os.makedirs(block_storage_path)
monitoring.log('log.All blocks were removed.')
except Exception as e:
print(e)
def run(self):
while True:
rcvd_data = self.rcvddata_q.get()
request_sock = self.socket_q.get()
socketip = self.socketip_q.get()
# Assuming the format of the incoming message is json
rcvd_data_json = json.loads(rcvd_data)
peerid = rcvd_data_json['ID']
monitoring.log("log.The ID of ConnectedPeer: " + peerid)
monitoring.log("log.The IP of ConnectedPeer: " + socketip)
if peerid in self.peer_list:
monitoring.log("log.Add new peer's IP to ConnectedPeerList.")
nodeproperty.ConnectedPeerList.append([peerid, socketip])
nodeproperty.ConnectedPeerList.sort()
request_sock.close()
connected_peer_list_json = json.dumps(
nodeproperty.ConnectedPeerList, indent=4, default=lambda o: o.__dict__, sort_keys=True)
monitoring.log(
"log.Updated ConnectedPeerList(json format): " + connected_peer_list_json)
sender.send_to_all_peers_except_itself(
connected_peer_list_json, peerconnector_Port)
set_peer.set_my_peer_num()
set_peer.set_total_peer_num()
else:
request_sock.close()
# If there is no ID in the peer list, ignore it.
monitoring.log(
"log.Ignore it because there is no corresponding ID in the predefined list.")
def connect_to_peermgr():
monitoring.log('log.Start a thread to connect to PeerMgr.')
# TODO: If there is no response after pinging PeerMgr, attempt to connect to another PeerMgr.
# Returns False if all attempts to connect to the PeerMgr fail.
connecting_to_peermgr_thr = ConnectingToPeerMgrThread(
1, "ConnectingToPeerMgrThread", peermgr_IP, peermgr_Port)
connecting_to_peermgr_thr.start()
monitoring.log('log.The thread to connect to PeerMgr has started.')
def send_to_all_node(message, my_ip, my_port):
address_list = file_controller.get_ip_list()
for addr in address_list:
try:
send(addr, message, my_port)
except Exception as e:
print(e)
monitoring.log("log." + "send block")
def transaction_validation():
monitoring.log('log.validation.tx')
hash_value = request.json["hash_value"]
block_id = request.json["block_id"]
block = search.search_block(block_id)
request_transaction, block_transaction, validation_value = validation.tx_validation(hash_value, block)
return jsonify({
"request_transaction": request_transaction,
"block_transaction": block_transaction,
"validation": validation
})
def get_my_ip_rpi():
iflist = netifaces.interfaces()
if 'wlan0' in iflist:
ip = netifaces.ifaddresses('wlan0')[netifaces.AF_INET][0]['addr']
monitoring.log("log.IP address:" + ip)
return ip
elif 'eth0' in iflist:
ip = netifaces.ifaddresses('eth0')[netifaces.AF_INET][0]['addr']
monitoring.log("log.IP address:" + ip)
return ip
def set_my_peer_num() -> int:
if nodeproperty.My_IP_address == None:
init_myIP()
p_num = 1
for i in peerproperty.nodeproperty.ConnectedPeerList:
if i[1] == nodeproperty.My_IP_address:
nodeproperty.My_peer_num = p_num
else:
p_num = p_num + 1
monitoring.log("log.my peer num: "+str(nodeproperty.My_peer_num))
return nodeproperty.My_peer_num
def receive_event(p_thrd_name, p_inq):
total_tx_count = 1
while True:
monitoring.log("log.Wait for transaction creation request.")
dequeued = p_inq.get()
tx = transaction.Transaction(dequeued)
# temp = json.dumps(
# tx, indent=4, default=lambda o: o.__dict__, sort_keys=True)
# for try
temp = json.dumps(tx, default=lambda o: o.__dict__, sort_keys=True)
# sender.send_to_all(temp)
sender.send_to_all_peers(temp, nodeproperty.My_receiver_port)
monitoring.log("log.Transaction creation request - rcvd: " +
str(dequeued))
monitoring.log("log.Transaction creation request - rcvd(json): " +
str(temp))
monitoring.log("log.Total number of transaction creation request: " +
str(total_tx_count))
# monitoring.log("log."+str(p_inq.qsize()))
total_tx_count = total_tx_count + 1
def receive_event(p_thrd_name, p_inq):
total_tx_count = 1
while True:
monitoring.log("log.Waiting the request for contract deployment.")
(restapi_request_json, restapi_request_ip) = p_inq.get()
tx = transaction.Transaction('CT', restapi_request_ip,
restapi_request_json)
# temp = json.dumps(
# tx, indent=4, default=lambda o: o.__dict__, sort_keys=True)
# for try
temp = json.dumps(tx, default=lambda o: o.__dict__, sort_keys=True)
# sender.send_to_all(temp)
sender.send_to_all_peers(temp, nodeproperty.My_receiver_port)
monitoring.log("log.Contract Deployment request - rcvd: " +
str(restapi_request_json))
monitoring.log("log.Contract Deployment request - rcvd(json): " +
str(temp))
monitoring.log("log.Total number of Contract Deployment request: " +
str(total_tx_count))
# monitoring.log("log."+str(p_inq.qsize()))
total_tx_count = total_tx_count + 1
def run(self):
while True:
rcvd_data = self.rcvddata_q.get()
request_sock = self.socket_q.get()
# Assuming the format of the incoming message is json
rcvd_list = json.loads(rcvd_data)
monitoring.log("log.Received ConnectedPeerList: " + rcvd_data)
request_sock.close()
nodeproperty.ConnectedPeerList = rcvd_list
set_peer.set_my_peer_num()
set_peer.set_total_peer_num()
def result_voting():
list = file_controller.get_voting_list()
voting_count = len(list)
MajorityCount = nodeproperty.Total_peer_num / 2
print("MajorityCount: "+ str(MajorityCount))
print("My number of votes: "+ str(voting_count))
if voting_count > MajorityCount :
difficulty = 2
monitoring.log("log.result voting : "+ str(voting_count))
return difficulty
else:
difficulty = 0
return difficulty
def receive_event(p_thrd_name, p_inq):
count = 1
while True:
monitoring.log("log.Waiting for event")
(restapi_request_json, restapi_request_ip) = p_inq.get()
# 어떤 노드에게 조회 요청을 보낸 후에, 해당 노드로부터 정보를 받은 후에 출력?
# 또는 해당 노드에게 직접 접근해서 조회요청을 보내고, 정보를 받은 후에 출력
# 낭종호 교수님 연구실에서 개발을 해야할 부분인듯한데...이는 1차년도 시연에서 제외하는 것이 맞는것인지 확인 필요 2017-09-27
monitoring.log("log." + str(restapi_request_json))
logging.debug(count)
logging.debug(str(p_inq.qsize()))
count = count + 1
time.sleep(queue_strategy.QUERY_DEQUEUE_INTERVAL)
def send(p_ip, p_msg, p_port, *args):
# if p_ip == nodeproperty.my_node.self_node:
# # print "Error"
# receiver_addr = (p_ip, p_port)
#
# tcp_socket = socket(AF_INET, SOCK_STREAM)
#
# try:
#
# tcp_socket.connect(receiver_addr)
# tcp_socket.settimeout(5)
# tcp_socket.send(p_msg.encode('utf-8'))
#
# except Exception as e:
# print(e)
#
# tcp_socket.close()
#
# else:
receiver_addr = (p_ip, p_port)
tcp_socket = socket(AF_INET, SOCK_STREAM)
print("receiver addr =" + str(p_ip) + " , " + str(p_port))
monitoring.log("log." + "receiver addr =" + str(p_ip) + " , " +
str(p_port))
print(" ")
try:
tcp_socket.connect(receiver_addr)
print("connected........")
monitoring.log("log." + "connected........")
tcp_socket.settimeout(2)
print(p_msg)
monitoring.log("log." + p_msg)
tcp_socket.send(p_msg.encode('utf-8'))
monitoring.log("log.end send")
except Exception as e:
print(e)
tcp_socket.close()
monitoring.log("log.Sending complete")
def send_to_all_peers_except_itself(p_msg, p_port):
monitoring.log("log.Send to all peers in ConnectedPeerList")
for peer in peerproperty.nodeproperty.ConnectedPeerList:
if peer[1] == peerproperty.nodeproperty.My_IP_address:
monitoring.log("log.Do not send msg it to peer itself.")
else:
try:
send(peer[1], p_msg, p_port)
except Exception as e:
print(e)
monitoring.log("log.ConnectedPeerList ID: " + peer[0])
monitoring.log("log.ConnectedPeerList IP: " + peer[1])
def init_myIP():
monitoring.log("log.Set the peer's own IP address.")
os = platform.system()
if os == 'Linux':
monitoring.log("log.Peer's os is Linux.")
# For raspberry pi, we use wlan,
# so we need to figure out the IP address in a different way.
nodeproperty.My_IP_address = file_controller.get_my_ip_rpi()
elif os == 'Windows':
monitoring.log("log.Peer's os is Windows.")
nodeproperty.My_IP_address = file_controller.get_my_ip()
monitoring.log("log.Peer's IP: " + nodeproperty.My_IP_address)
def run(self):
addr = (self.listening_ip, self.listening_port)
buf_size = 100
tcp_socket = socket(AF_INET, SOCK_STREAM)
tcp_socket.bind(addr)
tcp_socket.listen(5)
while True:
monitoring.log('log.Wait for PeerConnector to connect.')
request_sock, request_ip = tcp_socket.accept()
monitoring.log('log.PeerConnector connected.')
monitoring.log("log.PeerConnector IP: " + request_ip[0])
while True:
rcvd_total = []
while True:
# Assuming the format of the incoming message is json
rcvd_pkt = request_sock.recv(buf_size)
if not rcvd_pkt:
break
rcvd_total.append(rcvd_pkt)
rcvd_data = ""
for i in rcvd_total:
rcvd_data += i.decode('utf-8')
logging.debug("rcvd_data: " + rcvd_data)
if rcvd_data == "":
break
try:
self.rcvddata_q.put(rcvd_data)
self.socket_q.put(request_sock)
self.socketip_q.put(request_ip[0])
break
except Exception as e:
logging.debug(e)
def tx_save():
monitoring.log('log.request(save tx) rcvd...')
if not request.json or not 'tx_title' in request.json:
abort(400)
savetx_q.put((request.json, request.remote_addr))
monitoring.log("log."+str(savetx_q))
monitoring.log("log."+str(savetx_q.qsize()))
monitoring.log("transaction." + str(savetx_q) + '(' + str(savetx_q.qsize()) + ')')
return jsonify({
"tx_title": request.json["tx_title"],
"tx_body": request.json["tx_body"],
'info' : "You can see the tx address via the following link:"
"http://host:5000/info/tx/"
}), 201
def receive_event(p_thrd_name, p_inq):
while True:
monitoring.log("log.Waiting for V type msg")
(recv_data, request_sock) = p_inq.get()
# recv_data = p_inq.get()
# request_sock = p_socketq.get()
monitoring.log("log.V type msg rcvd: " + recv_data)
file_controller.add_voting(recv_data)
monitoring.log("voting." + recv_data)
difficulty = voting.result_voting()
if (difficulty > 0):
monitoring.log("Enter block generator")
block_generator.generate_block(difficulty, transaction.Merkle_root,
transaction.Transactions)
else:
monitoring.log("log.")
request_sock.close()
def send_to_all_peers(p_msg, p_port):
monitoring.log("log.Send to all peers in ConnectedPeerList")
for peer in peerproperty.nodeproperty.ConnectedPeerList:
try:
send(peer[1], p_msg, p_port)
except Exception as e:
print(e)
monitoring.log("log.ConnectedPeerList ID: " + peer[0])
monitoring.log("log.ConnectedPeerList IP: " + peer[1])
def tx_save():
monitoring.log('log.request(save tx) rcvd...')
savetx_q.put((request.json, request.remote_addr))
monitoring.log("log."+str(savetx_q))
monitoring.log("log."+str(savetx_q.qsize()))
time.sleep(5)
block = file_controller.get_last_block_payup()
hashvalue = hashlib.sha256(str(block["tx_list"]).encode('utf-8')).hexdigest()
return jsonify({
"status" : "pay_up transaction request complete",
"block Id " : block['block_header']['block_id'],
"hash_value": hashvalue
})
def contract_deploy():
monitoring.log('log.request(deploy smart contract) rcvd.')
if not request.json or not 'contract_title' in request.json or not 'contract_body' in request.json or not 'contract_args' in request.json:
abort(400)
smartcontract_deploy_q.put((request.json,request.remote_addr))
monitoring.log("log."+str(smartcontract_deploy_q))
monitoring.log("log." + str(smartcontract_deploy_q.qsize()))
return jsonify({
"contract_title": request.json["contract_title"],
"contract_body": request.json["contract_body"],
"contract_args": request.json["contract_args"],
'info' : "You can see the deployed contract address list via the following link:"
"http://host:5000/info/contract/deployed/"
}), 201
def receive_event(p_thrd_name, p_inq):
while True:
monitoring.log("log.Waiting for B type msg")
(recv_data, request_sock) = p_inq.get()
Data_jobj = json.loads(recv_data)
monitoring.log("log.B type msg rcvd: " + recv_data)
file_controller.create_new_block(
str(Data_jobj['block_header']['block_number']), recv_data)
block_verify.verify_tx_list(Data_jobj['tx_list'])
monitoring.log("log.End create _new block")
monitoring.log("block." +
str(Data_jobj['block_header']['block_number']))
# try
file_controller.remove_all_transactions()
file_controller.remove_all_voting()
# try
request_sock.close()
def contract_execute():
monitoring.log('log.request(execute contract) rcvd.')
if not request.json or not 'contract_addr' in request.json or not 'contract_function' in request.json or not 'contract_args' in request.json:
abort(400)
smartcontract_execute_q.put((request.json, request.remote_addr))
monitoring.log("log."+str(smartcontract_execute_q))
monitoring.log("log." + str(smartcontract_execute_q.qsize()))
return jsonify({
"contract_addr": request.json["contract_addr"],
"contract_function": request.json["contract_function"],
"contract_args": request.json["contract_args"],
'info' : "You can see the executed contract list via the following link:"
"http://host:5000/info/contract/executed/"
}), 201
def receive_event(p_thrd_name, p_inq, p_socketq):
while True:
monitoring.log("log.Waiting for B type msg")
recv_data = p_inq.get()
Data_jobj = json.loads(recv_data)
request_sock = p_socketq.get()
monitoring.log("log.B type msg rcvd: " + recv_data)
file_controller.create_new_block(
str(Data_jobj['block_header']['block_number']), recv_data)
monitoring.log("log.End create _new block")
file_controller.remove_all_transactions()
file_controller.remove_all_voting()
request_sock.close()
def create_rule():
monitoring.log('log.request(create rule) rcvd...')
savetx_q.put(request.json)
monitoring.log("log."+str(savetx_q))
monitoring.log("log."+str(savetx_q.qsize()))
if not request.json or not 'title' in request.json:
abort(400)
rule = {
'index': rulelist[-1]['index'] + 1,
'title': request.json['title'],
'body': request.json.get('body', "")
}
rulelist.append(rule)
return jsonify({'rule': rule}), 201
def start_peerconnector() -> bool:
connect_to_peermgr()
monitoring.log(
'log.Start listening thread to wait for connection of PeerMgr.')
listening_to_peerconnector_thr = ListeningToPeerMgrThread(
1, "ListeningToPeerMgrThread", nodeproperty.My_IP_address,
peerconnector_Port, connectedPeerMgr_rcvddata_q,
connectedPeerMgr_socket_q)
listening_to_peerconnector_thr.start()
monitoring.log(
'log.The listening thread is started to wait for the connection of PeerMgr.'
)
monitoring.log('log.Start a thread to update ConnectedPeerList.')
updating_peertable_thr = UpdatingConnectedPeerListThread(
1, "UpdatingConnectedPeerListThread", connectedPeerMgr_rcvddata_q,
connectedPeerMgr_socket_q)
updating_peertable_thr.start()
monitoring.log(
'log.The thread has started to update ConnectedPeerList that the peer has internally.'
)
return True