hgame week1

const express = require('express');
const multer = require('multer');
const fs = require('fs');
const path = require('path');

const app = express();

app.set('view engine', 'ejs');

app.use('/static', express.static(path.join(__dirname, 'public')));
app.use(express.json());

const storage = multer.diskStorage({
  destination: (req, file, cb) => {
    const uploadDir = 'uploads';
    if (!fs.existsSync(uploadDir)) {
      fs.mkdirSync(uploadDir);
    }
    cb(null, uploadDir);
  },
  filename: (req, file, cb) => {
    cb(null, file.originalname);
  }
});

const upload = multer({ 
  storage: storage,
  fileFilter: (_, file, cb) => {
    try {
      if (!file.originalname) {
        return cb(new Error('无效的文件名'), false);
      }
      cb(null, true);
    } catch (err) {
      cb(new Error('文件处理错误'), false);
    }
  }
});

app.get('/', (req, res) => {
  const uploadsDir = path.join(__dirname, 'uploads');
  
  if (!fs.existsSync(uploadsDir)) {
    fs.mkdirSync(uploadsDir);
  }

  fs.readdir(uploadsDir, (err, files) => {
    if (err) {
      return res.status(500).render('mortis', { files: [] });
    }
    res.render('mortis', { files: files });
  });
});

app.post('/upload', (req, res) => {
  upload.single('file')(req, res, (err) => {
    if (err) {
      return res.status(400).json({ error: err.message });
    }
    if (!req.file) {
      return res.status(400).json({ error: '没有选择文件' });
    }
    res.json({ 
      message: '文件上传成功',
      filename: req.file.filename 
    });
  });
});

app.post('/rename', (req, res) => {
  const { oldName, newName } = req.body;
  const oldPath = path.join(__dirname, 'uploads', oldName);
  const newPath = path.join(__dirname, 'uploads', newName);

  if (!oldName || !newName) {
    return res.status(400).json({ error: ' ' });
  }

  fs.rename(oldPath, newPath, (err) => {
    if (err) {
      return res.status(500).json({ error: ' ' + err.message });
    }
    res.json({ message: ' ' });
  });
});

app.listen(port, () => {
  console.log(`服务器运行在 http://localhost:${port}`);
});

from flask import Flask, request, render_template, render_template_string, redirect
import os
import templates

app = Flask(__name__)
pwd = os.path.dirname(__file__)
show_msg = templates.show_msg


def readmsg():
    filename = pwd + "/tmp/message.txt"
    if os.path.exists(filename):
        f = open(filename, 'r')
        message = f.read()
        f.close()
        return message
    else:
        return 'No message now.'


@app.route('/index', methods=['GET'])
def index():
    status = request.args.get('status')
    if status is None:
        status = ''
    return render_template("index.html", status=status)


@app.route('/send', methods=['POST'])
def write_message():
    filename = pwd + "/tmp/message.txt"
    message = request.form['message']

    f = open(filename, 'w')
    f.write(message) 
    f.close()

    return redirect('index?status=Send successfully!!')

@app.route('/read', methods=['GET'])
def read_message():
    if "{" not in readmsg():
        show = show_msg.replace("{{message}}", readmsg())
        return render_template_string(show)
    return 'waf!!'


if __name__ == '__main__':
    app.run(host = '0.0.0.0', port = 5000)