网页提醒域名过期

import dns.resolver
import smtplib
from email.mime.text import MIMEText
from datetime import datetime, timedelta

def check_domain_expiration(domain, email):
    try:
        answers = dns.resolver.resolve(domain, 'SOA')
        for rdata in answers:
            expire_date = rdata.expire
            current_date = datetime.now()
            if expire_date - current_date < timedelta(days=30):
                send_email(email, domain, expire_date)
    except Exception as e:
        print(f"Error checking domain {domain}: {e}")

def send_email(to, domain, expire_date):
    msg = MIMEText(f"Domain {domain} will expire on {expire_date}. Please renew it.")
    msg['Subject'] = f"Domain Expiry Reminder: {domain}"
    msg['From'] = "your_email@example.com"
    msg['To'] = to

    smtp_server = "smtp.example.com"
    smtp_port = 587
    smtp_username = "your_email@example.com"
    smtp_password = "your_password"

    with smtplib.SMTP(smtp_server, smtp_port) as server:
        server.starttls()
        server.login(smtp_username, smtp_password)
        server.sendmail(smtp_username, to, msg.as_string())

# 示例调用
check_domain_expiration("example.com", "domain_owner@example.com")