校园网络维护脚本

该脚本一直监测网络连接情况，若出现断网情况，自动连接网络。
话不多说，直接贴代码：
NetLogin.py
  1 #coding: utf-8
  2 
  3 import requests
  4 import time
  5 import datetime
  6 import sys
  7 
  8 reload(sys)
  9 sys.setdefaultencoding("utf-8")
 10 
 11 class NetLogin:
 12 
 13     def __init__(self):
 14         self.login_url = 'http://p.nju.edu.cn/portal_io/login'
 15         self.info_url = 'http://p.nju.edu.cn/portal_io/getinfo' #登录状态下获取，方式：get
 16         self.logout_url = 'http://p.nju.edu.cn/portal_io/logout'
 17         self.headers = {
 18                         'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
 19                         'Referer': 'http://p.nju.edu.cn/',
 20                         'User-Agent': 'Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.81 Safari/537.36',
 21                         'X-Requested-With': 'XMLHttpRequest'
 22                         }
 23 
 24         self.form_data = {
 25                         'username': 'MGxxxxxxx',
 26                         'password': 'xxxxxx'
 27                          }
 28         self.timeout = 5
 29 
 30         self.test_url = 'http://www.baidu.com/'
 31         self.testStr = "030173"
 32 
 33 
 34     def net_test(self):
 35         try:
 36             s = requests.session()
 37             r = s.get(self.test_url, headers=self.headers, timeout=self.timeout)
 38             pos = r.content.find(self.testStr)
 39             if pos >= 1:
 40                 #print 'Internet Ok'
 41                 return 'Internet Ok'
 42             else:
 43                 #print 'Internet Wrong'
 44                 return 'Internet Wrong'
 45         except Exception, e:
 46             print e
 47 
 48 
 49 
 50 
 51     def create_session(self):
 52         s = requests.session()
 53         return s
 54 
 55     def login(self):
 56         s = self.create_session()
 57         r = s.post(self.login_url, self.form_data, headers=self.headers)
 58         if r.json()['reply_code'] == 1:
 59             print r.json()['reply_msg']
 60             return r.json()['reply_msg']
 61         else:
 62             #print u"login failed"
 63             return u"login failed"
 64 
 65     #获取登录信息，需要完成登录后执行该函数
 66     def getInfo(self):
 67         s = self.create_session()
 68         r = s.get(self.info_url, headers=self.headers)
 69 
 70     #网络注销
 71     def logout(self):
 72         s = self.create_session()
 73         r = s.post(self.logout_url, headers=self.headers)
 74 
 75 
 76 if __name__ == "__main__":
 77     net = NetLogin()
 78     signal = net.net_test()
 79     #log = open('netlog.txt', 'a')
 80     while True:
 81         if signal == 'Internet Ok':
 82             #s = str(datetime.datetime.now())
 83             print datetime.datetime.now()
 84             print signal
 85             '''
 86             log.write(s)
 87             log.write('
')
 88             log.write(signal)
 89             log.write('
')
 90             '''
 91 
 92         else:
 93             #s = str(datetime.datetime.now()) + ':'
 94             print signal
 95             str = net.login()
 96             print datetime.datetime.now()
 97             print str
 98             '''
 99             log.write(s)
100             log.write('
')
101             log.write(str)
102             log.write('
')
103             '''
104         time.sleep(1)
105         signal = net.net_test()
106         '''
107         num += 1
108         if num == 5:
109             flag = False
110         '''
111 
112     #log.close()