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api/register.js

@@ -0,0 +1,21 @@
+import { sql, param, ok, fail, hashPassword } from '../lib/db.js';
+
+export default async function handler(req, res) {
+  const name = param(req, 'user');
+  const pass = param(req, 'pass');
+
+  if (!/^[A-Za-z0-9_-]{2,20}$/.test(name))
+    return fail(res, 'Name: 2-20 Zeichen, a-z 0-9 _ -');
+  if (pass.length < 4)
+    return fail(res, 'Passwort zu kurz (min. 4)');
+
+  try {
+    const exists = await sql`SELECT id FROM users WHERE LOWER(name) = LOWER(${name})`;
+    if (exists.length) return fail(res, 'Name bereits vergeben');
+
+    await sql`INSERT INTO users (name, pass_hash) VALUES (${name}, ${hashPassword(pass)})`;
+    ok(res, 'OK|registriert\n');
+  } catch (e) {
+    fail(res, 'Serverfehler: ' + e.message);
+  }
+}