node.py

#!/usr/bin/env python
import socket
import select
import sys
import subprocess
import time


IP_address = socket.gethostname()
Port = 2004
acc = ['firefox', 'shutdown', 'gedit']

while True:
    try:
        conn = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        conn.connect((IP_address, Port))
        while True:
            sockets_list = [sys.stdin, conn]

            read_sockets, write_socket, error_socket = select.select(sockets_list, [], [])

            for socks in read_sockets:
                if socks == conn:
                    command = socks.recv(2048)
                    if not command:
                    		raise Exception()
                    else:
                    	for x in acc:
                    		if x in command:
                    				CMD = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE,stdin=subprocess.PIPE)
                    				conn.send(CMD.stdout.read())
                    				conn.send(CMD.stderr.read())
                        else:
                        		continue
                else:
                		continue
    except:
    	time.sleep(10)
    	continue
   		
server.close()