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191 lines (157 loc) 路 7.62 KB
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import binascii
import struct
import random
import socket
import sys
from bitstring import BitArray, ConstBitArray, ConstBitStream
#import binascii
import numpy as np
import bitarray as ba
import thread
import time
from functions import *
from operation import OPERATION
class Server:
def __init__(self, addr):
self.addr = addr
print("Initialize Server Program!")
# Packing Frame data to Binary
def pack_message(self, OP, AN, ID):
operation = OPERATION(OP)
#Pakowanie do tablicy bool'i
message = intTOboolArr(operation.value, '05b') + intTOboolArr(AN, '04b') + intTOboolArr(ID,'03b') + intTOboolArr(0, '04b')
MESSAGE = boolList2BinString(message)
bitstring = BitArray(MESSAGE)
#print(str(bitstring))
return bitstring.tobytes()
# For unpacking massages from Binary to Frame structure
def unpack_message(self, data):
recvdata = bin(int(binascii.hexlify(data), 16))
#print recvdata
unpacked_data = recvdata[2:].zfill(16)
#print recvdata
unpacked_data = ba.bitarray(unpacked_data)
unpacked_data = unpacked_data.tolist()
#print unpacked_data
OP = OPERATION(boolArrTOint(unpacked_data[:5]))
AN = boolArrTOint(unpacked_data[5:9])
ID = boolArrTOint(unpacked_data[9:12])
return [OP, AN, ID]
def newClient(self, connection, client_address, port, clients, secret_number, tries, client_nr):
print "New Client: thread created"
try:
print 'Connection from', client_address, ":", port
# Receive the data in small chunks and retransmit it
while True:
data = connection.recv(2)
# unpacked_data = unpacker.unpack(data)
#print "Data len:",len(data)
if len(data) != 0:
message = self.unpack_message(data)
# print(message)
print 'Received: ' + str(message)
action = message[0]
answer = message[1]
token = message[2]
if action == OPERATION.GET_ID:
print 'GET_ID from ' + str(client_address)
token = random.randint(1, 7)
for x in clients:
while token == x[0]:
token = random.randint(1, 7)
client = [token]
clients += [client]
message = self.pack_message(OPERATION.SEND_ID, 0, token)
connection.sendall(message)
print 'Responded with SEND_ID to' + str(client_address)
elif action == OPERATION.GET_ID_TRIES:
print 'GET_ID & TRIES from ' + str(client_address)
token = random.randint(1, 7)
for x in clients:
while token == x[0]:
token = random.randint(1, 7)
clients += [[token, answer, False]]
print 'ID:' + str(token) + ' GRANTED FOR ' + str(client_address)
if len(clients) > 1:
tries = (clients[0][1] + clients[1][1]) / 2
clients[0][1] = tries
clients[1][1] = tries
message = self.pack_message(OPERATION.SEND_ID_TRIES, tries, token)
connection.sendall(message)
print 'Responded with SEND_ID & TRIES to ' + str(client_address)
else:
message = self.pack_message(OPERATION.SEND_ID, 0, token)
connection.sendall(message)
print 'Responded with SEND_ID to ' + str(
client_address) + '. TRIES not send (Waiting for second player)!'
# while True:
# if len(clients) < 1:
# time.sleep(1)
# else:
# message = self.pack_message(OPERATION.TRIES, tries, token)
# connection.sendall(message)
elif action == OPERATION.TRIES:
print 'TRIES from ' + str(client_address), ":", port
if answer == 0:
client_tries = 0 #moze powodowac error, ale na razie jest potrzebne
for x in clients:
if x[0] == token:
client_tries = x[1]
message = self.pack_message(OPERATION.TRIES, client_tries, token)
connection.sendall(message)
elif answer == 1:
#print str(clients)
if len(clients) < 2:
message = self.pack_message(OPERATION.TRIES, 0, token)
connection.sendall(message)
else:
tries2 = (clients[0][1] + clients[1][1]) / 2
message = self.pack_message(OPERATION.TRIES, tries2, token)
connection.sendall(message)
print 'Responded with TRIES to ' + str(client_address), ":", port
elif action == OPERATION.GUESS:
print str(client_address) + " is GUESSing " + str(answer)
for client in clients:
if client[0] == token:
if answer == secret_number:
client[2] = True
message = self.pack_message(OPERATION.RESULT, 1, token)
connection.sendall(message)
print "RESULT send as it is GOOD answer to " + str(client_address)
else:
client[1] -= 1
message = self.pack_message(OPERATION.TRIES, client[1], token)
connection.sendall(message)
print "TRIES send as it is BAD answer to " + str(client_address)
else:
print('Error: Bad flags settings!')
#break
finally:
# Clean up the connection
connection.close()
def start(self):
print("Server is starting!")
# Create a TCP/IP socket
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# Bind the socket to the port
server_address = (self.addr, 8000)
print >> sys.stderr, 'Starting up on %s port %s' % server_address
sock.bind(server_address)
# Listen for incoming connections
sock.listen(2)
# Picking a random integer
secret_number = self.randomInt()
print("Random secret number: " + str(secret_number))
# Client variables
tries = 0
clients = []
client_nr = 1
while True:
# Wait for a connection
print >> sys.stderr, 'Waiting for a connection'
connection, (client_address, port) = sock.accept()
thread.start_new_thread(self.newClient, (connection, client_address, port, clients, secret_number, tries, client_nr))
client_nr+=1
def randomInt(self):
number = random.randint(0,15)
return number