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7 changed files with 1 additions and 303 deletions

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@ -15,8 +15,6 @@
"better-auth": "^1.6.2",
"cors": "^2.8.6",
"express": "^5.2.1",
"express-rate-limit": "^8.4.0",
"helmet": "^8.1.0",
"ws": "^8.20.0"
},
"devDependencies": {

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@ -1,39 +0,0 @@
import request from "supertest";
import { describe, it, expect } from "vitest";
import { createApp } from "./app.js";
const app = createApp();
describe("security headers (helmet)", () => {
it("sets X-Content-Type-Options to nosniff", async () => {
const res = await request(app).get("/api/v1/health");
expect(res.headers["x-content-type-options"]).toBe("nosniff");
});
it("sets X-Frame-Options to SAMEORIGIN", async () => {
const res = await request(app).get("/api/v1/health");
expect(res.headers["x-frame-options"]).toBe("SAMEORIGIN");
});
it("removes X-Powered-By header", async () => {
const res = await request(app).get("/api/v1/health");
expect(res.headers).not.toHaveProperty("x-powered-by");
});
it("sets Content-Security-Policy", async () => {
const res = await request(app).get("/api/v1/health");
expect(res.headers).toHaveProperty("content-security-policy");
});
});
describe("auth rate limiting", () => {
it("returns 429 after exceeding the auth limit", async () => {
const testApp = createApp();
const limit = 20;
for (let i = 0; i < limit; i++) {
await request(testApp).post("/api/auth/sign-in");
}
const res = await request(testApp).post("/api/auth/sign-in");
expect(res.status).toBe(429);
});
});

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@ -1,26 +1,20 @@
import express from "express";
import type { Express } from "express";
import { toNodeHandler } from "better-auth/node";
import cors from "cors";
import helmet from "helmet";
import { auth } from "./lib/auth.js";
import { apiRouter } from "./routes/apiRouter.js";
import { errorHandler } from "./middleware/errorHandler.js";
import { authLimiter } from "./middleware/rateLimiters.js";
import cors from "cors";
export function createApp() {
const app: Express = express();
app.set("trust proxy", 1);
app.use(helmet());
app.use(
cors({
origin: process.env["CORS_ORIGIN"] || "http://localhost:5173",
credentials: true,
}),
);
app.use("/api/auth", authLimiter);
app.all("/api/auth/*splat", toNodeHandler(auth));
app.use(express.json());
app.use("/api/v1", apiRouter);

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@ -1,179 +0,0 @@
import express from "express";
import request from "supertest";
import { describe, it, expect, beforeEach } from "vitest";
import { authLimiter, gameLimiter, lobbyLimiter } from "./rateLimiters.js";
import type { Session, User } from "better-auth";
// Minimal app to test the limiter in isolation
function createTestApp() {
const app = express();
app.set("trust proxy", 1);
app.use("/api/auth", authLimiter);
app.all("/api/auth/*splat", (_req, res) => {
res.status(200).json({ success: true });
});
return app;
}
describe("authLimiter", () => {
let app: ReturnType<typeof createTestApp>;
beforeEach(() => {
// Fresh app = fresh in-memory store = counters reset between tests
app = createTestApp();
});
it("allows requests under the limit through", async () => {
const res = await request(app).post("/api/auth/sign-in");
expect(res.status).toBe(200);
});
it("returns 429 after exceeding the limit", async () => {
const limit = 20;
for (let i = 0; i < limit; i++) {
await request(app).post("/api/auth/sign-in");
}
const res = await request(app).post("/api/auth/sign-in");
expect(res.status).toBe(429);
expect(res.body).toEqual({
success: false,
error: "Too many requests, please try again later.",
});
});
it("sets RateLimit headers on responses", async () => {
const res = await request(app).post("/api/auth/sign-in");
expect(res.headers).toHaveProperty("ratelimit");
});
});
function fakeAuth(userId: string) {
return (
req: express.Request,
_res: express.Response,
next: express.NextFunction,
) => {
req.session = { session: {} as Session, user: { id: userId } as User };
next();
};
}
function createGameTestApp(userId = "user-1") {
const app = express();
app.set("trust proxy", 1);
app.use(fakeAuth(userId));
app.use(gameLimiter);
app.post("/game/start", (_req, res) =>
res.status(200).json({ success: true }),
);
app.post("/game/answer", (_req, res) =>
res.status(200).json({ success: true }),
);
return app;
}
describe("gameLimiter", () => {
it("allows requests under the limit through", async () => {
const app = createGameTestApp();
const res = await request(app).post("/game/start");
expect(res.status).toBe(200);
});
it("returns 429 after exceeding the limit", async () => {
const app = createGameTestApp();
const limit = 150;
for (let i = 0; i < limit; i++) {
await request(app).post("/game/answer");
}
const res = await request(app).post("/game/answer");
expect(res.status).toBe(429);
expect(res.body).toEqual({
success: false,
error: "Too many requests, please try again later.",
});
});
it("tracks limits per user, not per IP", async () => {
const app = express();
app.set("trust proxy", 1);
// Two routes, same limiter, different users
app.use("/user1", fakeAuth("user-1"), gameLimiter, (_req, res) =>
res.status(200).json({ success: true }),
);
app.use("/user2", fakeAuth("user-2"), gameLimiter, (_req, res) =>
res.status(200).json({ success: true }),
);
const limit = 150;
for (let i = 0; i < limit; i++) {
await request(app).post("/user1");
}
// user-1 is exhausted
const blocked = await request(app).post("/user1");
expect(blocked.status).toBe(429);
// user-2 is unaffected
const allowed = await request(app).post("/user2");
expect(allowed.status).toBe(200);
});
});
function createLobbyTestApp(userId = "user-1") {
const app = express();
app.set("trust proxy", 1);
app.use(fakeAuth(userId));
app.use(lobbyLimiter);
app.post("/lobbies", (_req, res) => res.status(200).json({ success: true }));
app.post("/lobbies/:code/join", (_req, res) =>
res.status(200).json({ success: true }),
);
return app;
}
describe("lobbyLimiter", () => {
it("allows requests under the limit through", async () => {
const app = createLobbyTestApp();
const res = await request(app).post("/lobbies");
expect(res.status).toBe(200);
});
it("returns 429 after exceeding the limit", async () => {
const app = createLobbyTestApp();
const limit = 20;
for (let i = 0; i < limit; i++) {
await request(app).post("/lobbies");
}
const res = await request(app).post("/lobbies");
expect(res.status).toBe(429);
expect(res.body).toEqual({
success: false,
error: "Too many requests, please try again later.",
});
});
it("tracks limits per user, not per IP", async () => {
const app = express();
app.set("trust proxy", 1);
app.use("/user1", fakeAuth("user-1"), lobbyLimiter, (_req, res) =>
res.status(200).json({ success: true }),
);
app.use("/user2", fakeAuth("user-2"), lobbyLimiter, (_req, res) =>
res.status(200).json({ success: true }),
);
const limit = 20;
for (let i = 0; i < limit; i++) {
await request(app).post("/user1");
}
const blocked = await request(app).post("/user1");
expect(blocked.status).toBe(429);
const allowed = await request(app).post("/user2");
expect(allowed.status).toBe(200);
});
});

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@ -1,44 +0,0 @@
import rateLimit from "express-rate-limit";
import type { Request } from "express";
// TODO: When Valkey is wired up, swap the default in-memory store for
// rate-limit-redis to persist limits across restarts:
//
// import { RedisStore } from "rate-limit-redis";
// import { valkey } from "../lib/valkey.js";
// Then add to each limiter: store: new RedisStore({ sendCommand: (...args) => valkey.call(...args) })
export const authLimiter = rateLimit({
windowMs: 15 * 60 * 1000,
limit: 20,
standardHeaders: "draft-8",
legacyHeaders: false,
message: {
success: false,
error: "Too many requests, please try again later.",
},
});
export const gameLimiter = rateLimit({
windowMs: 15 * 60 * 1000,
limit: 150,
standardHeaders: "draft-8",
legacyHeaders: false,
keyGenerator: (req: Request) => req.session!.user.id,
message: {
success: false,
error: "Too many requests, please try again later.",
},
});
export const lobbyLimiter = rateLimit({
windowMs: 15 * 60 * 1000,
limit: 20,
standardHeaders: "draft-8",
legacyHeaders: false,
keyGenerator: (req: Request) => req.session!.user.id,
message: {
success: false,
error: "Too many requests, please try again later.",
},
});

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@ -32,9 +32,6 @@ Things that are actively in progress or should be picked up immediately. Mostly
- **Security headers with helmet** `[security]`
Add helmet middleware to set secure HTTP response headers. One-liner: app.use(helmet()). Covers headers like X-Content-Type-Options, X-Frame-Options, and Content-Security-Policy.
- **Conditionally register OAuth providers** `[debt]`
Better Auth logs warnings when social providers are registered without credentials (`Social provider google is missing clientId or clientSecret`). Instead of registering all providers unconditionally, only add a provider to the config when its credentials are present in the environment. Keeps local dev clean for contributors who don't have OAuth apps set up.
---
## next

29
pnpm-lock.yaml generated
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@ -62,12 +62,6 @@ importers:
express:
specifier: ^5.2.1
version: 5.2.1
express-rate-limit:
specifier: ^8.4.0
version: 8.4.0(express@5.2.1)
helmet:
specifier: ^8.1.0
version: 8.1.0
ws:
specifier: ^8.20.0
version: 8.20.0
@ -2051,12 +2045,6 @@ packages:
resolution: {integrity: sha512-knvyeauYhqjOYvQ66MznSMs83wmHrCycNEN6Ao+2AeYEfxUIkuiVxdEa1qlGEPK+We3n0THiDciYSsCcgW/DoA==}
engines: {node: '>=12.0.0'}
express-rate-limit@8.4.0:
resolution: {integrity: sha512-gDK8yiqKxrGta+3WtON59arrrw6GLmadA1qoFgYXzdcch8fmKDID2XqO8itsi3f1wufXYPT51387dN6cvVBS3Q==}
engines: {node: '>= 16'}
peerDependencies:
express: '>= 4.11'
express@5.2.1:
resolution: {integrity: sha512-hIS4idWWai69NezIdRt2xFVofaF4j+6INOpJlVOLDO8zXGpUVEVzIYk12UUi2JzjEzWL3IOAxcTubgz9Po0yXw==}
engines: {node: '>= 18'}
@ -2197,10 +2185,6 @@ packages:
resolution: {integrity: sha512-0hJU9SCPvmMzIBdZFqNPXWa6dqh7WdH0cII9y+CyS8rG3nL48Bclra9HmKhVVUHyPWNH5Y7xDwAB7bfgSjkUMQ==}
engines: {node: '>= 0.4'}
helmet@8.1.0:
resolution: {integrity: sha512-jOiHyAZsmnr8LqoPGmCjYAaiuWwjAPLgY8ZX2XrmHawt99/u1y6RgrZMTeoPfpUbV96HOalYgz1qzkRbw54Pmg==}
engines: {node: '>=18.0.0'}
hermes-estree@0.25.1:
resolution: {integrity: sha512-0wUoCcLp+5Ev5pDW2OriHC2MJCbwLwuRx+gAqMTOkGKJJiBCLjtrvy4PWUGn6MIVefecRpzoOZ/UV6iGdOr+Cw==}
@ -2243,10 +2227,6 @@ packages:
ini@1.3.8:
resolution: {integrity: sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew==}
ip-address@10.1.0:
resolution: {integrity: sha512-XXADHxXmvT9+CRxhXg56LJovE+bmWnEWB78LB83VZTprKTmaC5QfruXocxzTZ2Kl0DNwKuBdlIhjL8LeY8Sf8Q==}
engines: {node: '>= 12'}
ipaddr.js@1.9.1:
resolution: {integrity: sha512-0KI/607xoxSToH7GjN1FfSbLoU0+btTicjsQSWQlh/hZykN8KpmMf7uYwPW3R+akZ6R/w18ZlXSHBYXiYUPO3g==}
engines: {node: '>= 0.10'}
@ -4841,11 +4821,6 @@ snapshots:
expect-type@1.3.0: {}
express-rate-limit@8.4.0(express@5.2.1):
dependencies:
express: 5.2.1
ip-address: 10.1.0
express@5.2.1:
dependencies:
accepts: 2.0.0
@ -5007,8 +4982,6 @@ snapshots:
dependencies:
function-bind: 1.1.2
helmet@8.1.0: {}
hermes-estree@0.25.1: {}
hermes-parser@0.25.1:
@ -5047,8 +5020,6 @@ snapshots:
ini@1.3.8: {}
ip-address@10.1.0: {}
ipaddr.js@1.9.1: {}
is-binary-path@2.1.0: