v0.71.0: admin panel — users table, login/sessions, generic DB CRUD modal

app/api/login/route.ts

@@ -0,0 +1,52 @@
+import { getGameDb } from '@/lib/db/client';
+import { createSession, verifyPassword, DUMMY_HASH_FOR_UNKNOWN_USER } from '@/lib/auth';
+
+// v0.71.0 — POST /api/login
+//   body { username: string, password: string } (both required non-empty; unknown fields 400).
+//   Success → 200 { sessionId, user: { username, admin } }; the session row lives 7 days and is
+//   sent back as X-Flight-Session on later requests. Failure → 401 { error }. An unknown
+//   username still runs one full scrypt against a fixed dummy digest so timing stays uniform.
+
+export async function POST(req: Request) {
+  let body: unknown;
+  try {
+    const text = await req.text();
+    body = text ? JSON.parse(text) : undefined;
+  } catch {
+    return Response.json({ error: 'invalid JSON body' }, { status: 400 });
+  }
+  if (typeof body !== 'object' || body === null || Array.isArray(body)) {
+    return Response.json({ error: 'body must be a JSON object' }, { status: 400 });
+  }
+  const input = body as Record<string, unknown>;
+  for (const key of Object.keys(input)) {
+    if (key !== 'username' && key !== 'password') {
+      return Response.json({ error: `unknown field "${key}"` }, { status: 400 });
+    }
+  }
+  const username = input.username;
+  const password = input.password;
+  if (typeof username !== 'string' || username.length === 0) {
+    return Response.json({ error: 'username is required and must be a non-empty string' }, { status: 400 });
+  }
+  if (typeof password !== 'string' || password.length === 0) {
+    return Response.json({ error: 'password is required and must be a non-empty string' }, { status: 400 });
+  }
+
+  const inst = await getGameDb();
+  const res = inst.raw.exec('SELECT id, password_hash, admin FROM users WHERE username = ?', [username]);
+  const row = res[0]?.values?.[0];
+  if (!row) {
+    verifyPassword(password, DUMMY_HASH_FOR_UNKNOWN_USER); // uniform timing — result discarded
+    return Response.json({ error: 'invalid credentials' }, { status: 401 });
+  }
+  if (!verifyPassword(password, String(row[1]))) {
+    return Response.json({ error: 'invalid credentials' }, { status: 401 });
+  }
+
+  const sessionId = await createSession(inst, String(row[0]));
+  return Response.json({
+    sessionId,
+    user: { username, admin: Number(row[2]) === 1 },
+  });
+}