# coding=gb2312

import requests

import json

from urllib.request import urlopen

import os

import time

import smtplib

from email.header import Header

from email.mime.text import MIMEText

# 两个获取ip地址的网站

ip_url_1 = 'https://api.ipify.org/?format=json'

ip_url_2 = 'http://jsonip.com'

# 配置文件名

config_file_name = 'public_ip.json'

mail_info = {

    'recv_address': '28@qq.com',

    'sender_name': 'r1@sina.cn',

    'sender_pwd': '6685c65', # 授权密码（去邮箱网站设置），非登录密码

    'smtp_server': 'smtp.sina.cn',

    'subject': 'IP信息已更新',

    'content': '您的公网IP信息: {},其他相关信息如下：{}'

}

# 检查配置文件及其权限

def check_configfile_exist():

    file_exist = os.access(config_file_name, os.F_OK)

    file_read  = os.access(config_file_name, os.R_OK)

    file_write = os.access(config_file_name, os.W_OK)

    return{'file_exist':file_exist,'file_read':file_read,'file_write':file_write}

def generate_configfile(ip_addr):

    config_construct = {

        "ip_addr": ip_addr

    }

    with open(config_file_name, "w", encoding='utf8') as fp:

        fp.write(json.dumps(config_construct,indent=4, ensure_ascii=False))

    fp.close()

def send_message(content):

    # 设置发送邮件的内容

    msg = MIMEText(content, 'plain', 'utf-8')

    msg['From'] = Header(mail_info.get('sender_name'))

    msg['Subject'] = Header(mail_info.get('subject'), 'utf-8')

    msg['To'] = Header(mail_info.get('recv_address'))

    # 发送邮件

    smtp = smtplib.SMTP()

    smtp.connect(mail_info['smtp_server'])

    smtp.login(mail_info['sender_name'], mail_info['sender_pwd'])

    smtp.sendmail(mail_info['sender_name'], mail_info['recv_address'], msg.as_string())

###################################################################################################################

localtime = time.localtime(time.time()) # 打印本地时间

print("\n" + time.asctime(localtime))

# 通过两个网站获取ip地址

resp = requests.get(ip_url_1)

info = resp.json()

my_ip_1 = info.get('ip')

resp = requests.get(ip_url_2)

info = resp.json()

my_ip_2 = info.get('ip')

if (my_ip_1 == my_ip_2):

    ip_addr = my_ip_1

else:

    ip_addr = "ip_1 :" + my_ip_1 + "\n" + "ip_2 :" + my_ip_2

print("\n" + ip_addr)

if(check_configfile_exist()['file_exist'] & check_configfile_exist()['file_write']):

    config_file = open(config_file_name,'r')

    read_context = json.load(config_file)

    old_ip = read_context['ip_addr']

    config_file.close()

    if (old_ip == ip_addr):

        print("ip address is up-to-date")

    else:

        content = "old ip address is : " + old_ip + '\n' + "new ip address is : " + ip_addr

        #sendEmail2(mail_host,mail_user,mail_pass,receivers,"ip",content)

        send_message(content)

        generate_configfile(ip_addr)

else:

    generate_configfile(ip_addr)

    content = "new ip address is : " + ip_addr

    #sendEmail2(mail_host,mail_user,mail_pass,receivers,"ip",content)

    send_message(content)