index.js

const TLHCrawlerLogo = `
88888 8 8                               8            
  8   8 8d8b. .d8b 8d8b .d88 Yb  db  dP 8 .d88b 8d8b 
  8   8 8P Y8 8    8P   8  8  YbdPYbdP  8 8.dP' 8P   
  8   8 8   8  Y8P 8     Y88   YP  YP   8  Y88P 8 
`
// 載入
const tlhcRequest = require('./TLHCrequest.js'); //請求模組
const tlhcScore = require('./TLHCScore.js'); //成績系統模組
const config = require('./config.js'); //設定檔
const express = require('express'); // Node.js Web 架構
const app = express();
const bodyParser = require('body-parser'); // 讀入 post 請求
const session = require('express-session');
const Base64 = require('js-base64').Base64; // Base64
const helmet = require('helmet'); // 防範您的應用程式出現已知的 Web 漏洞
const moment = require('moment-timezone'); // 時間處理
const schedule = require('node-schedule'); //計時器
const fs = require('fs');
const jsonfile = require('jsonfile')
const breakdance = require('breakdance'); //html 2 md
const bot = process.env.TOKEN || process.argv[2] ? new(require('node-telegram-bot-api'))(process.env.TOKEN || process.argv[2], {
    polling: true
}) : false; //Telegram bot
const botData = jsonfile.readFileSync('./botData.json') || {
    "sentposts": {}
}
moment.locale('zh-tw');
moment.tz.setDefault("Asia/Taipei");
schedule.scheduleJob('0 * * * *', updateTgCh);
// 實現一個等待函數
const delay = (interval) => {
    return new Promise((resolve) => {
        setTimeout(resolve, interval);
    });
};

async function updateTgCh() {
    if (bot) {
        let pageData = (await tlhcRequest.getPage("http://web.tlhc.ylc.edu.tw/files/40-1001-15-1.php"))
        pageData.posts = pageData.posts.sort(function (a, b) {
            return b - a
        });
        for (i = 0; i < pageData.posts.length; i++) {
            if (!botData.sentposts[pageData.posts[i].link]) {
                let postData = await tlhcRequest.getPost(pageData.posts[i].url)
                if (postData != 404 && postData != "May be a directory") {
                    let link = pageData.posts[i].link ? `https://tlhc.gnehs.net${pageData.posts[i].link}` : ''
                    let title = `<a href="${link}">${postData.title.trim()}</a>`
                    let content = (postData.content && postData.content != postData.title) ? postData.content.replace(/<br>/g, '').replace(/\\n\\n/g, '\n') : ''
                    let msgText = `${title}\n<code>${content}</code>`
                    if (postData.title) {
                        let msg;
                        try {
                            msg = await bot.sendMessage(process.env.botChannelId || process.argv[3], msgText, {
                                parse_mode: "HTML",
                                disable_web_page_preview: true
                            })
                        } catch (e) {
                            msg = await bot.sendMessage(process.env.botChannelId || process.argv[3], `${title}\n❌本公告含有無法解析內容，請點擊上方連結預覽`, {
                                parse_mode: "HTML",
                                disable_web_page_preview: true
                            })
                        }
                        botData.sentposts[pageData.posts[i].link] = msg.message_id //儲存已發送的文章 id
                        for (j = 0; j < postData.files.length; j++)
                            bot.sendDocument(process.env.botChannelId || process.argv[3],
                                postData.files[j].link, {
                                    parse_mode: "markdown",
                                    reply_to_message_id: msg.message_id,
                                    caption: `📎${postData.files[j].name}\n🌎 [線上預覽](https://docs.google.com/viewer?url=${encodeURIComponent(postData.files[j].link)})`
                                })

                    }
                }
                await delay(10000); //wait 10s
                jsonfile.writeFileSync('./botData.json', botData)
            }
        }
    }
}
updateTgCh()

app.set('views', __dirname + '/views');
app.set('view engine', 'pug')
app.use(bodyParser.urlencoded({
    extended: true
}));
app.use(helmet.hidePoweredBy({
    setTo: 'PHP/5.2.1'
}));
//拿餅乾
app.use(session({
    secret: 'ㄐㄐ讚' + Math.random().toString(36).substr(2),
    resave: false,
    saveUninitialized: false,
}));
//發餅乾

//設定 /js /icon /css 目錄
app.use('/', express.static('public'))


app.listen(3000, () => {
    console.log(`[TLHCRAWLER] ${moment().format("YYYY/MM/DD HH:mm")} http://localhost:3000 ${bot?'w/bot':''}`)
})

app.get('/og/og.png', (req, res) => {
    var files = fs.readdirSync("./ogimage/").filter(function (i, n) {
        if (i.toString().indexOf('.png') > -1 && i.toString().indexOf('._') < 0)
            return i
    });
    //og
    var imgnum = Math.floor(Math.random() * files.length);
    var img = __dirname + "/ogimage/" + files[imgnum]
    try {
        res.sendFile(img)
    } catch (err) {}
});
//------------可愛的首頁------------
app.get('/', async (req, res) => {
    let links = config.links
    let slide = config.slide
    let posts = (await tlhcRequest.getPage("http://web.tlhc.ylc.edu.tw/files/40-1001-15-1.php")).posts
    res.render('index', {
        title: 'ㄉㄌㄐㄕ',
        links: links,
        slide: slide,
        posts: posts
    })
})
app.get('/about/', (req, res) => {
    res.render('about', {
        title: 'ㄉㄌㄐㄕ - 關於'
    });
});

//------------API-------------

app.use('/api', require('./router/api'));
app.use('/system', require('./router/system'));
app.use('/tlhc', require('./router/tlhc'));

//------------錯誤頁------------
app.use((req, res, next) => {
    res.status(404).render('error', {
        title: 'ㄉㄌㄐㄕ - 錯誤',
        error: 404
    })
});
app.use((err, req, res, next) => {
    console.error(err)
    res.status(500).render('error', {
        title: 'ㄉㄌㄐㄕ - 錯誤',
        error: 500
    })
});