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btc_socket_server.py
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btc_socket_server.py
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#Socket client
# connect to mutiple servers
#outbound
import socket
import threading
import time
from bitcoin.messages import msg_version, msg_verack, msg_addr, MsgSerializable, msg_getaddr, msg_addr
import messages
from bitcoin.net import CAddress
SLEEP_TIME = 2
MY_IP='172.31.16.27'
#Manage mutiple outbound connections
class SocketServerManager:
def __init__(self, host, port):
self.host=host
self.port=port
self.inbound_connections = set([])
self.socket = socket.socket()
self.socket.bind((host, port))
self.socket.listen()
def start(self):
print('Server started')
while True:
print('Waiting connections')
conn, addr = self.socket.accept()
print('Connected by', addr)
t = threading.Thread(target=self.messageHandler,args=(conn,addr))
t.start()
print('sleeping')
time.sleep(SLEEP_TIME)
def messageHandler(self, clientsocket, addr):
while True:
dataReceived = clientsocket.recv(1024)
if not dataReceived:
#will close the socket
break;
msg = MsgSerializable().from_bytes(dataReceived)
print('received ',msg)
print( isinstance(msg,msg_version))
if isinstance(msg,msg_version):
clientsocket.send(msg_verack().to_bytes())
self.inbound_connections.add(addr[0])
print('sent verack')
clientsocket.send( messages.version_pkt(MY_IP, addr[0],self.port).to_bytes() )
print('sent version_pkt')
if isinstance(msg,msg_getaddr):
perrAddrs = []
for peer in self.inbound_connections:
perrAddr = CAddress()
perrAddr.port=self.port
perrAddr.nTime = int(time.time())
perrAddr.ip = peer
perrAddrs.append(perrAddr)
rMsg= msg_addr()
rMsg.addrs = perrAddrs
print(rMsg)
clientsocket.send(rMsg.to_bytes())
print('sent msg_addr')
time.sleep(SLEEP_TIME)
clientsocket.close()