证书到期提醒竟然要收费？白嫖方法来了

import ssl
import socket
from datetime import datetime, timedelta
import requests

'''
定时检查SSL是否过期，并发起提醒.
0 10 * * * /usr/bin/python3 /root/check.py
0 17 * * * /usr/bin/python3 /root/check.py
'''

def check_ssl_expiry_date(domain):
    context = ssl.create_default_context()
    conn = context.wrap_socket(
        socket.socket(socket.AF_INET),
        server_hostname=domain,
    )
    try:
        conn.connect((domain, 443))
        cert = conn.getpeercert()
        expiry_date = datetime.strptime(cert['notAfter'], '%b %d %H:%M:%S %Y %Z')
        return expiry_date
    finally:
        conn.close()
def send_feishu(webhook_url, message):
    headers = {'Content-Type': 'application/json'}
    data = {
        "msg_type": "text",
        "content": {"text": message}
    }
    response = requests.post(webhook_url, json=data)
    if response.status_code != 200:
        raise Exception(f"消息发送失败: {response.text}")
def check_domains(domains, webhook_url):
    today = datetime.now()
    for domain in domains:
        expiry_date = check_ssl_expiry_date(domain)
        days_remaining = (expiry_date - today).days
        if days_remaining <= 30:
            message = f"提醒： {domain}的SSL证书，还有{days_remaining}天过期!"
            send_feishu(webhook_url, message)
if __name__ == "__main__":
    # 换成你自己的
    domain_list = ["www.baidu.com","www.qq.com"] 
    # 换成你自己的
    feishu_message_url = "https://open.feishu.cn/open-apis/bot/v2/hook/xxxxxx"
    check_domains(domain_list, feishu_message_url)