python 更新谷歌hosts

#coding:utf-8
'''''
下载google host
修改 系统hosts文件
'''
from requests.packages.urllib3 import request__author__ = 'halfopen'  from bs4 import BeautifulSoup
from PIL import Image
import urllib2
import sys
import ImageEnhance
import urllib
import cookielib
import re
import os
import platform
import httplib
import timeclass GetGoogleHosts:system_type = u"unknown"url = u"http://laod.cn/hosts/2015-google-hosts.html"new_hosts_url = ""cj = cookielib.CookieJar()opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))headers = {"User-agent": u"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1"}UserAgent  = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.117 Safari/537.36'def __init__(self):# 设置 cookieself.system_type = platform.system()# 获取最新hostsdef get_new_host(self):request  = urllib2.Request(self.new_hosts_url)request.add_header('Accept', "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp")request.add_header('Accept-Encoding', "*")request.add_header('User-Agent', self.UserAgent)html = urllib2.urlopen(request).read()# print htmlf = open("hosts", 'wb')f.write(html)f.close()# 获取最新hosts urldef get_new_hosts_url(self):try:request = urllib2.Request(self.url)request.add_header('Accept', "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp")request.add_header('Accept-Encoding', "*")request.add_header('User-Agent', self.UserAgent)print u"------->[I]:download start"html = str(urllib2.urlopen(request).read())# print html# obj = re.match(r'http.*txt', "http://laod.cn/wp-content/uploads/2015/09/20150901-hosts.txt")obj = re.match(r'.*http://laod.cn/wp-content/uploads/.*-hosts.txt', html)if obj is not None:str1 = obj.group(0)self.new_hosts_url = str1[len(str1)-60:len(str1)]print u"------->[I]:get new_hosts_url\n\t"+self.new_hosts_urlelse:print u"------->[E]:new_hosts_url do not match"exit()except Exception, e:print eexit()finally:print u"------->[I]:download finished"# 替换hosts文件def update_hosts(self):print u"------->[I]:system platform\n\t"+platform.system()self.get_new_hosts_url()self.get_new_host()# filename = u"hosts.old."+str(time.time())if platform.system()== u"Windows":print u"------->[I]:move C:\Windows\System32\drivers\etc\hosts to C:\Windows\System32\drivers\etc\hosts.old"os.system(u'copy C:\Windows\System32\drivers\etc\hosts  C:\Windows\System32\drivers\etc\hosts.old')print u"------->[I]:copy hosts to C:\Windows\System32\drivers\etc\hosts.old "os.system(u'copy hosts C:\Windows\System32\drivers\etc\hosts.old')elif platform.system() == u"Linux":print u"------->[I]:move /etc/hosts to /etc/"os.system(u'cp /etc/hosts  /etc/hosts.old')print u"------->[I]:copy new host file to /etc/hosts "os.system(u'cp hosts /etc/hosts')else:passif __name__ == u'__main__':print u"------->"getGoogleHost = GetGoogleHosts()getGoogleHost.update_hosts()# getGoogleHost.update_hosts()

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