域名过期监控

import whois
import smtplib
from email.mime.text import MIMEText

def check_domain_expiration(domain):
    w = whois.whois(domain)
    expiration_date = w.expiration_date
    if expiration_date:
        return expiration_date
    else:
        return None

def send_email(to, subject, body):
    msg = MIMEText(body)
    msg['Subject'] = subject
    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'

    server = smtplib.SMTP(smtp_server, smtp_port)
    server.starttls()
    server.login(smtp_username, smtp_password)
    server.sendmail(smtp_username, to, msg.as_string())
    server.quit()

def main():
    domain = 'example.com'
    expiration_date = check_domain_expiration(domain)
    if expiration_date:
        days_left = (expiration_date - datetime.datetime.now()).days
        if days_left < 30:
            send_email('admin@example.com', 'Domain Expiration Alert', f'{domain} will expire in {days_left} days.')
    else:
        print('Unable to retrieve domain expiration date.')

if __name__ == '__main__':
    main()