获取adsl公网地址

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 背景
  • 实时获取宽带ADSL公网地址
  • 解决动态域名更新失败，无法获取公网IP
  • 邮件通知变更
 监控脚本
#!/usr/bin/env python
#coding=utf-8
import urllib2,re,sys
import time
import smtplib
from email.mime.text import MIMEText
from email.header import Header
from email.mime.multipart import MIMEMultipart

def GetWanIP():
    respone = urllib2.urlopen('http://ddns.oray.com/checkip',timeout=5)
    r = respone.read()
    ip = re.search('\d+\.\d+\.\d+\.\d+',r).group()
    return ip

def SentMail(LastWanIP,CurrentWanIP,time):
    mail_host = 'mail.laohulab.com'
    mail_user = 'postmaster'
    mail_pass = 'password'
    sender = 'postmaster@laohulab.com'
    receivers = ['120731842@qq.com','yongjianhu@laohulab.com']

    message = MIMEMultipart()
    message['From'] = Header(sender)
    message['To'] = Header(';'.join(receivers))
    message['Subject'] = Header('Adsl IP Update For laohulab.com !','utf-8')
    message.attach(MIMEText('Time:%s\nLastWanIP:%s\nCurrentWanIP:%s\n' % (time,LastWanIP,CurrentWanIP), 'plain', 'utf-8'))
    att1 = MIMEText(open('adsl.txt','rb').read(), 'base64', 'utf-8')
    att1["Content-Type"] = 'application/octet-stream'
    att1["Content-Disposition"] = 'attachment; filename=adsl.txt'
    message.attach(att1)
    try:
        smtpObj = smtplib.SMTP()
        smtpObj.connect(mail_host, 25)
        smtpObj.login(mail_user,mail_pass)
        smtpObj.sendmail(sender, receivers, message.as_string())
        print '\033[31;1mSuccess Sent Mail To %s\033[0m' % receivers
    except:
        print '\033[31;1mFailer Sent Mail To %s\033[0m' % receivers

if __name__ == '__main__':
    f = file('adsl.txt','r')
    LastWanIP = re.search('\d+\.\d+\.\d+\.\d+',f.read().strip().split()[-1]).group()
    f.close()
    print LastWanIP
    CurrentIP = GetWanIP()
    print CurrentIP
    if CurrentIP == LastWanIP:
        sys.exit('\033[34;1m Current Adsl IP Not Changed For laohulab.com !\033[0m')
    else:
        t = time.asctime(time.localtime(time.time()))
        f = file('adsl.txt','ab')
        f.write('%s %s\n' % (t,CurrentIP))
        f.flush()
        f.close()
        SentMail(LastWanIP,CurrentIP,t)
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