Python 实现断网自动重连

为了实现 断网了，自动连接网络

原理：每隔一段时间ping一下百度，判断网络状态，没有联网的话，就模仿浏览器发一条Post给服务器

import urllib
import hashlib
import subprocess
import os
import time

def getPass(password):
    pass1 = hashlib.md5()
    pass1.update(password)
    pass2 = pass1.hexdigest()
    return pass2[8:24]

def postLogin(url, user, password):
    pass2 = getPass(password)
    headers = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.79 Safari/537.36 Edge/14.14393'}
    post_data = {'username': user, 'password': pass2, 'drop': '0', 'type': '1', 'n': '100'}
    post_data = urllib.urlencode(post_data)
    req = urllib.Request(url, post_data, headers)
    response = urllib.urlopen(req)

     #就是Post的内容了，当然密码是MD5加密过后的，这个随便找找也没有问题的

    #接下来是 检测网络是否连接，我采用Ping百度的办法，毕竟这是百度最大的功能之一，网上参考一下别人的代码

def ping(user, password):
    fnull = open(os.devnull, 'w')
    return1 = subprocess.call('ping 61.135.169.125', shell=True, stdout=fnull, stderr=fnull)
    if return1:
        print_ts('Internet not connected!')
        print_ts('Connecting now...')
        postLogin('http://159.226.39.22/cgi-bin/do_login', user, password)
        ping(user, password)
    else:
        print_ts('Internet connected!')
    fnull.close()

def print_ts(message):
    print("[%s] %s" % (time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()), message))

# 定时运行，需要用到Python的time模块
def run(interval, user, password):
    print_ts("-" * 50)
    print_ts('Copyright (c) Huntley')
    print_ts('Email:zhangzihao@ict.ac.cn')
    print_ts('')
    print_ts("Check the Internet every %s seconds." % interval)
    print_ts("-" * 50)
    while True:
        try:
            time_remaining = interval - time.time() % interval
            time.sleep(time_remaining)
            print_ts("Checking Internet connection...")
            ping(user, password)
            print_ts("Next check will start after %s seconds" % interval)
        except Exception as  e:
            print(e)

if __name__ == '__main__':
    # 设置联网检查时间间隔
    # interval = 600
    interval = 10
    # 设置用户名
    user = 'TYPE YOUR USERNAME HERE'
    # 设置密码
    password = 'TYPE YOUR PASSWORD HERE'
    # 运行
    run(interval, user, password)