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index.js
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index.js
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const express = require('express');
const https = require('https')
const session = require('express-session');
const bodyParser = require('body-parser');
const path = require('path');
const fs = require('fs');
const bcrypt = require('bcryptjs');
const crypto = require('crypto')
const {capture, IMAGE_DIR} = require('./capture');
const database = './database.json';
let user = {};
if (fs.existsSync(database)) {
user = JSON.parse(fs.readFileSync(database, "utf8"));
}
const app = express();
app.use(session({
secret: crypto.randomBytes(64).toString('hex'),
resave: true,
saveUninitialized: true
}));
app.use(bodyParser.urlencoded({extended: true}));
app.post('/login', function (req, res) {
if(req.body.username === user.username) {
console.log('verify password.', 'hash type:', typeof(user.hash), '; hash length:', user.hash.length);
bcrypt.compare(req.body.password, user.hash, (err, result) => {
if (result && !err) {
console.log('password verification passed');
req.session.user = user.username;
req.session.admin = true;
res.redirect('/');
}
else {
console.log('password verification failed', err);
res.redirect('/login.html');
}
});
}
else {
res.redirect('/login.html');
}
});
app.post('/register', function (req, res) {
const readlineSync = require('readline-sync');
const hash = bcrypt.hashSync(req.body.password, 10);
user.username = req.body.username;
user.hash = hash;
fs.writeFileSync(database, JSON.stringify({'username': user.username, 'hash': hash}));
res.redirect('/');
});
// Logout endpoint
app.get('/logout', function (req, res) {
req.session.destroy();
res.send('logout success!');
});
// Authentication and Authorization Middleware
app.use((req, res, next) => {
if (req.session && req.session.user === user.username && req.session.admin)
return next();
else
if (!fs.existsSync(database)) {
res.sendFile(path.join(__dirname, 'public', 'register.html'));
}
else {
res.sendFile(path.join(__dirname, 'public', 'login.html'));
}
});
app.use(express.static(path.join(__dirname, 'public')));
app.get('/files', (req, res) => {
let files = fs.readdirSync(IMAGE_DIR);
files.sort();
res.json(files);
});
app.get('/img/:filename', (req, res) => {
res.sendFile(path.join(IMAGE_DIR, req.params.filename));
});
const PORT = process.env.PORT || 5000;
let sslOptions = {
key: fs.readFileSync('selfsigned.key', 'utf8'),
cert: fs.readFileSync('selfsigned.crt', 'utf8')
};
https.createServer(sslOptions, app).listen(PORT, () => {
console.log(`Server started on port ${PORT}`);
capture();
});