Arnaud
4960dfc7c6
Sign-in/sign-up now throttle at 3 req/10s/IP via better-auth's built-in rate limiter; /r/ and /s/ share links throttle at 60 req/min/IP via proxy.ts using the existing Redis-backed limiter (Next 16's Proxy always runs Node.js, no Edge-runtime blocker after all). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
67 lines
2.6 KiB
TypeScript
67 lines
2.6 KiB
TypeScript
import { NextRequest, NextResponse } from "next/server";
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import { getSessionCookie } from "better-auth/cookies";
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import { applyRateLimit } from "@/lib/rate-limit";
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const PUBLIC_PATHS = ["/login", "/signup", "/verify-email", "/forgot-password", "/reset-password", "/api/auth", "/r/", "/u/", "/s/", "/docs", "/api/v1/openapi.json", "/api/webhooks", "/api/v1/invites/", "/api/internal/"];
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const ADMIN_PATHS = ["/admin"];
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// Unauthenticated, publicly-linked pages (shared recipes/shopping lists) —
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// no per-user identity to key on, so rate-limit by IP to deter scraping.
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const IP_RATE_LIMITED_PATHS = ["/r/", "/s/"];
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const IP_RATE_LIMIT = 60;
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const IP_RATE_LIMIT_WINDOW_SECONDS = 60;
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function getClientIp(request: NextRequest): string {
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const forwardedFor = request.headers.get("x-forwarded-for");
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if (forwardedFor) return forwardedFor.split(",")[0]!.trim();
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return request.headers.get("x-real-ip") ?? "unknown";
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}
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export async function proxy(request: NextRequest) {
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const { pathname } = request.nextUrl;
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const isPublic = PUBLIC_PATHS.some((p) => pathname.startsWith(p));
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const isAdmin = ADMIN_PATHS.some((p) => pathname.startsWith(p));
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const isApi = pathname.startsWith("/api/v1");
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if (isPublic) {
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if (IP_RATE_LIMITED_PATHS.some((p) => pathname.startsWith(p))) {
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const ip = getClientIp(request);
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const limited = await applyRateLimit(`rl:public:${ip}`, IP_RATE_LIMIT, IP_RATE_LIMIT_WINDOW_SECONDS);
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if (limited) return limited;
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}
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return NextResponse.next();
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}
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// API-key clients authenticate via `Authorization: Bearer ek_...`, not a
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// session cookie — they'd otherwise be rejected here before ever reaching
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// requireSessionOrApiKey (lib/api-auth.ts), which is the only place that
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// actually verifies the key. Defer to it instead of requiring a cookie.
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const authHeader = request.headers.get("authorization");
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const hasApiKeyHeader = isApi && authHeader?.startsWith("Bearer ek_");
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const sessionCookie = getSessionCookie(request);
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if (!sessionCookie && !hasApiKeyHeader) {
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if (isApi) {
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return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
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}
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return NextResponse.redirect(new URL("/login", request.url));
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}
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if (isAdmin) {
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// Role check happens inside admin pages — middleware only checks auth
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// Full role verification requires DB lookup, done server-side in admin layout
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}
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return NextResponse.next();
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}
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export default proxy;
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export const config = {
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matcher: [
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"/((?!_next/static|_next/image|favicon.ico|icon.svg|icon-192.svg|icon-512.svg|manifest.webmanifest|sw.js|public/).*)",
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],
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};
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