gistfile1.py

import PyV8

FLAG = 'dpdjzjsWkd'
ctx  = PyV8.JSContext()
ctx.enter()

script = """
check =
function(_password, _flag)
{
  var password = _password;
	var flag 	 = _flag;

	return function(_password)
	{
		if (password != _password)
			flag = 'Nope~';

		return flag;
	}
}(Math.floor(Math.random() * 10000), FLAG);
"""

print 'task from PHD CTF Final'
print script

ctx.eval(script.replace('FLAG', '\x27%s\x27' % FLAG))

while True :
	try :
		print ctx.eval(raw_input('> '))
	except Exception, e :
		print e.message