import requests
from bs4 import BeautifulSoup
import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
import time
import logging

# 配置日志
logging.basicConfig(level=logging.INFO, format="%(asctime)s - %(message)s")

# 配置邮件发送函数
def send_email(subject, body, to_email):
    # 邮件服务器配置
    smtp_server = "smtp.lcdd.net"
    smtp_port = 587
    from_email = "admin@lcdd.net"
    password = "lichao1314"

    # 构建邮件
    msg = MIMEMultipart()
    msg["From"] = from_email
    msg["To"] = to_email
    msg["Subject"] = subject
    msg.attach(MIMEText(body, "plain"))

    # 连接到服务器并发送邮件
    try:
        with smtplib.SMTP(smtp_server, smtp_port) as server:
            server.starttls()
            server.login(from_email, password)
            server.sendmail(from_email, to_email, msg.as_string())
        logging.info("邮件已发送到 %s", to_email)
    except Exception as e:
        logging.error("邮件发送失败: %s", e)

# 配置爬虫任务
def check_website_for_condition(url, keyword):
    try:
        response = requests.get(url)
        response.raise_for_status()  # 确保请求成功
        soup = BeautifulSoup(response.text, "html.parser")

        # 搜索关键词
        if keyword in soup.get_text():
            logging.info("检测到关键词: %s", keyword)
            return True
        else:
            logging.info("关键词 %s 不存在", keyword)
            return False
    except Exception as e:
        logging.error("请求失败: %s", e)
        return False

# 主调度函数
def monitor_website():
    url = "https://lcdd.net"  # 目标网址
    keyword = "React"  # 目标关键词
    to_email = "randolphreidhdu@gmail.com"  # 收件人邮箱

    # 监控循环
    while True:
        if check_website_for_condition(url, keyword):
            subject = "关键词检测通知"
            body = f"目标网站 {url} 上检测到关键词 '{keyword}' 出现！"
            send_email(subject, body, to_email)
            break  # 如果检测到条件，发送一次邮件并退出循环

        # 未检测到条件时，延迟一段时间再次检查
        time.sleep(300)  # 每5分钟检查一次

# 启动监控
if __name__ == "__main__":
    monitor_website()