node authentication

node/routes/login.js

@@ -0,0 +1,37 @@
+const express = require('express');
+const router = express.Router();
+const utils = require('../utils');
+const sql = require('../sql');
+const my_scrypt = require('../my_scrypt');
+
+router.get('', (req, res, next) => {
+    res.render('login', { 'failedAuth': false });
+});
+
+router.post('', async (req, res, next) => {
+    const userName = await sql.getOption('username');
+
+    const guessedPassword = req.body.password;
+
+    if (req.body.username === userName && await verifyPassword(guessedPassword)) {
+        const rememberMe = req.body.rememberme;
+
+        req.session.loggedIn = true;
+
+        return res.redirect('app');
+    }
+    else {
+        res.render('login', {'failedAuth': true});
+    }
+});
+
+
+async function verifyPassword(guessed_password) {
+    const hashed_password = utils.fromBase64(await sql.getOption('password_verification_hash'));
+
+    const guess_hashed = await my_scrypt.getVerificationHash(guessed_password);
+
+    return guess_hashed.equals(hashed_password);
+}
+
+module.exports = router;