def send_ledger(self, conn):
data = deepcopy(self.miner.ledger)
data = jsonpickle.encode(self.miner.ledger).encode("utf-8")
length = len(data)
print("WILL SEND {}".format(length))
SocketOp.send(str(length).encode("utf-8"), conn)
response = conn.recv(2)
SocketOp.send(data, conn)
print("SENT LEDGER")
def send_blockchain(self, conn):
data = deepcopy(self.miner.blockchain)
data = jsonpickle.encode(data).encode("utf-8")
length = len(data)
print("WILL SEND {}".format(length))
SocketOp.send(str(length).encode("utf-8"), conn)
response = conn.recv(2)
SocketOp.send(data, conn)
print("SENT BLOCKCHAIN")
def send_all(self, conn, addr):
data = json.dumps(self.peers).encode("utf-8")
try:
length = len(data)
conn.sendall(
length.to_bytes((length.bit_length() + 7) // 8,
byteorder="big"))
response = conn.recv(2)
SocketOp.send(data, conn)
except:
print("Connection error with {}".format(addr[0]))
def send_block(self, block, addr):
addr.append(self.peer.address)
print("BLOCK HAS BEEN TO {}".format(addr))
response = 1
for p in self.peer.peers:
if p not in addr:
print("PEER {}".format(p))
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
s.connect((p, self.peer.port))
s.sendall("B".encode("utf-8"))
response = s.recv(2)
data = jsonpickle.encode(addr).encode("utf-8")
length = len(data)
SocketOp.send(str(length).encode("utf-8"), s)
response = s.recv(2)
SocketOp.send(data, s)
response = s.recv(2)
data = jsonpickle.encode(block).encode("utf-8")
length = len(data)
SocketOp.send(str(length).encode("utf-8"), s)
response = s.recv(2)
SocketOp.send(data, s)
response = s.recv(1)
response = int.from_bytes(response, byteorder="big")
s.close()
except Exception as e:
print("CONNECTION WITH {} FAILED, {}".format(p, e))
break
return bool(response)
def start(self):
print("TIMESTAMP SERVER STARTED")
while True:
try:
self.ss.listen(50)
conn, addr = self.ss.accept()
print("CONNECTION FROM {}".format(addr[0]))
data = self.rsa.sign(str(time()))
data = jsonpickle.encode(data).encode("utf-8")
length = len(data)
SocketOp.send(str(length).encode("utf-8"), conn)
response = conn.recv(2)
SocketOp.send(data, conn)
conn.close()
except Exception as e:
print("COULD NOT SEND TIMESTAMP")
print(e)
def tx_server(self):
print("WEB SERVER STARTED")
while True:
try:
self.get_peers()
self.get_ledger()
self.ss.listen(50)
conn, addr = self.ss.accept()
print("CONNECTION FROM {}".format(addr[0]))
data = self.tx_queue[:self.max_tx]
data = jsonpickle.encode(data).encode("utf-8")
length = len(data)
SocketOp.send(str(length).encode("utf-8"), conn)
response = conn.recv(2)
SocketOp.send(data, conn)
conn.close()
self.tx_queue = self.tx_queue[self.max_tx:]
except Exception as e:
print("COULD NOT SEND TRANSACTIONS")
print(e)
def send_peers(self, conn, addr):
if addr[0] not in self.peers:
self.peers.append(addr[0])
no_peers = len(self.peers)
notify = 0
if no_peers > self.max_peers:
self.n += 1
self.max_peers *= 2
notify = 1
if no_peers == 1:
data = "ONLY PEER"
print("ONLY PEER")
else:
data = []
index = self.peers.index(addr[0])
l = len(self.peers)
for i in range(self.n):
peer_index = (index + pow(2, i)) % l
while peer_index > no_peers:
peer_index = (peer_index + 1) % l
if addr[0] != self.peers[peer_index]:
data.append(self.peers[peer_index])
data = json.dumps(data).encode("utf-8")
try:
length = len(data)
conn.sendall(
length.to_bytes((length.bit_length() + 7) // 8,
byteorder="big"))
response = conn.recv(2)
SocketOp.send(data, conn)
except:
print("Connection error with {}".format(addr[0]))
if notify == 1:
self.notify()
def inactive(self, addr):
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(self.peer.boot_peer)
s.sendall("I".encode("utf-8"))
SocketOp.send(addr.encode("utf-8"), s)
s.close()