Add initial server setup

server/routes/users.js

@@ -0,0 +1,37 @@
+const express = require('express');
+const crypto = require('crypto');
+const db = require('../db');
+
+const router = express.Router();
+
+router.get('/new', function(req, res, next) {
+  res.render('signup');
+});
+
+router.post('/', function(req, res, next) {
+  const salt = crypto.randomBytes(16);
+  crypto.pbkdf2(req.body.password, salt, 10000, 32, 'sha256', function(err, hashedPassword) {
+    if (err) { return next(err); }
+
+    db.run('INSERT INTO users (username, hashed_password, salt, name) VALUES (?, ?, ?, ?)', [
+      req.body.username,
+      hashedPassword,
+      salt,
+      req.body.name
+    ], function(err) {
+      if (err) { return next(err); }
+
+      const user = {
+        id: this.lastID.toString(),
+        username: req.body.username,
+        displayName: req.body.name
+      };
+      req.login(user, function(err) {
+        if (err) { return next(err); }
+        res.redirect('/');
+      });
+    });
+  });
+});
+
+module.exports = router;