#!/usr/bin/env?python
#?-*-?coding:?utf-8?-*-

#history:
#?1.Please?edit?this?file?in?editors?which?supports?UNIX?files?if?you?are?using?Windows?OS
#?2.tests?passed?on?v0.8?u62R0
#?3.edit?basic?configuration?first.
#?4.Code?adapted?for?ChongQing?University?Dr.com?Client?&&?Server
#?						--By?GY
#Date:?2015.07.01??
#Author:???????cquhsk
#Chongqing?University
#test?passed?in?win7/RHEL6
‘‘‘
Add?notes
Increase?hide?login?password
Modify?socket?reuse?mode
Repair:closed?socket?when?process?ended?
Increase?the?logging?can?be?configured
‘‘‘

#Version:??????v2b
#?2015.11.11


import?socket?struct?time
from?hashlib?import?md5
import?sys
import?urllib2
import?re

import?gc
import?pdb

#Hide?input?password?
import?getpass

class?ChallengeException?（Exception）:
????def?__init__（self）:
????????pass