#! /usr/bin/env python

#coding=utf-8

#转自http://my.oschina.net/bluefly/blog/310705

#识别字符序列变换算法，当前支持标准的MD5、SHA-1、Base64，及主流的URL编码、HTML编码

import re

import sys

#MD5判断函数

def checkMD5(inStr):

MD5KeyStrs = '0123456789abcdefABCDEF'

inStr = inStr.strip() #判断MD5的时候把输入两端的空格切掉

if (len(inStr) != 16) and (len(inStr) != 32):

return False

else:

for eachChar in inStr:

if eachChar not in MD5KeyStrs:

return False

return True

#SHA1判断函数

def checkSHA1(inStr):

SHA1KeyStrs = '0123456789abcdefABCDEF'

inStr = inStr.strip() #判断SHA-1的时候把输入两端的空格切掉

if len(inStr) != 40:

return False

else:

for eachChar in inStr:

if eachChar not in SHA1KeyStrs:

return False

return True

#Base64判断函数

def checkBase64(inStr):

Base64KeyStrs = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='

inStr = inStr.strip() #判断Base64的时候把输入两端的空格切掉

if len(inStr) % 4 != 0:

return False

else:

for eachChar in inStr:

if eachChar not in Base64KeyStrs:

return False

return True

#URL编码判断函数

def checkURLCode(inStr):

reURLCode = '%[0-9a-fA-F][0-9a-fA-F]' #正则表达式

reResultList = re.findall(reURLCode,inStr)

if len(reResultList) == 0:

return False

else:

return True

#HTML编码判断函数

def checkHTMLCode(inStr):

htmlEncodeTuple = ('<','>','&',''','"',' ',''','/')

for each in htmlEncodeTuple:

if each in inStr:

return True

return False