#!/bin/sh
import numpy
import socket
import sys

HOST = '127.0.0.1'   # Symbolic name, meaning all available interfaces
PORT = 9981 # Arbitrary non-privileged port
BLACKLIST=['raise','import','lambda','sys','os','rm','exec','socket','system','get','item','excep']
socketer = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
Super_Top_Secret_Number = numpy.int64(9223372036854775807)
#Bind socket to local host and portW
try:
	socketer.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
	socketer.bind((HOST, PORT))
except socket.error as msg:
    print ('Bind failed. Error Code : ' + str(msg[0]) + ' Message ' + msg[1])
    sys.exit()
#Start listening on socket
socketer.listen(10)
print('Wello')
conn, addr = socketer.accept()
datar = conn.recv(25)
check = []
[check.append([sign,datar.decode()]) for sign in BLACKLIST]
if len(list(filter(lambda x : x[0] in x[1],check))) > 0 or '-' in datar.decode():
	conn.send('BLOCKED!\n'.encode())
	conn.close()
	sys.exit()
else:
	try:
		evaled=eval(datar.decode())
	except Exception as excep:
		evaled=str(excep)
	finally:
		if isinstance(evaled, numpy.int64) and int(evaled) < 0:
			conn.send('WELLO{Py7on_1s_C00l!}\n'.encode())
		else:
			conn.send(str('The variable is: '+str(evaled)+'\n'+'Give me A negative number!'+'\n').encode())
			conn.close()