#!/usr/bin/env python2
import os
import urllib2
import smtplib
import time

from datetime import datetime
from email.MIMEMultipart import MIMEMultipart
from email.MIMEText import MIMEText

site= "https://api.ipify.org"
hdr = {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11',
       'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
       'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.3',
       'Accept-Encoding': 'none',
       'Accept-Language': 'en-US,en;q=0.8',
       'Connection': 'keep-alive'}

req = urllib2.Request(site, headers=hdr)

current_ip = ""

while (True):
        fqn = os.uname()[1]
        external_ip = urllib2.urlopen(req).read()

        #print(external_ip)
        if current_ip != external_ip:
                current_ip = external_ip
                fromaddr = "FROMADDR"
                toaddr = "TOADDR"
                msg = MIMEMultipart()
                msg['From'] = fromaddr
                msg['To'] = toaddr
                msg['Subject'] = "IP Address change"
                body = 'A new IP has been detected: %s' % str(external_ip)
                msg.attach(MIMEText(body, 'plain'))
                server = smtplib.SMTP('mail.domain.de', 587)
                server.starttls()
                server.login(fromaddr, "Passwort")
                text = msg.as_string()
                server.sendmail(fromaddr, toaddr, text)
                server.quit()
        time.sleep(600)