Adds rate limiting to /api/auth/login and /api/auth/register and removes
their wide-open CORS allowlist.
Rate limiting (@upstash/ratelimit + @upstash/redis):
- 5 attempts per 15-minute sliding window per IP, prefix "tcgvault:auth"
- new lib/rate-limit.js, lazy singleton, single source of truth
- reads KV_REST_API_URL / KV_REST_API_TOKEN (Vercel Upstash Marketplace
convention — auto-provisioned, no manual env-var setup needed)
- fail-closed in production if env vars are missing (better to error
one login than silently disable brute-force protection on live)
- fail-open in dev/test if env vars are missing (single console.warn)
- fail-open on Upstash backend outage (defense-in-depth — don't lock
the entire userbase out if Upstash is down)
- IP extracted from x-forwarded-for first hop, with socket fallback;
NOT req.body.email (rotates) or Authorization header (absent on
unauthenticated login)
CORS:
- Removed Access-Control-Allow-Origin: * + companion headers + OPTIONS
preflight from login.js and register.js
- These are first-party endpoints called from the same-origin SPA; the
"*" allowlist was a development convenience that shipped to prod
- verify.js is OUT OF SCOPE per architect's "cors-tighten" deferral
(see convoy plan § Architect's calls)
Other handler ordering preserved verbatim per brief: method gate first,
then rate-limit check (returns 429 with Retry-After header), then the
existing try/catch + body parsing + DB work.
Pre-merge requirements: KV_REST_API_URL + KV_REST_API_TOKEN must be set
in Vercel Production (already done — Upstash marketplace integration
auto-provisioned both, confirmed by maintainer 2026-05-23).
Convoy: fix-auth-bypass / Brief 4
Co-authored-by: Cursor <cursoragent@cursor.com>
- New `lib/auth-secret.js` is the single source of truth for `JWT_SECRET`
and the canonical `JWT_TOKEN_TTL = '24h'`. Module throws at import time
if `process.env.JWT_SECRET` is unset — no silent fallback to the literal
`'your-secret-key-change-in-production'`.
- 7 callers refactored to import from the helper:
lib/permission-middleware.js
pages/api/auth-utils.js (also drops unused `'7d'` → JWT_TOKEN_TTL)
pages/api/auth/login.js (also routes via auth-utils.generateToken)
pages/api/auth/register.js (same)
pages/api/auth/verify.js (Brief 2 still owns the no-token admin branch)
pages/api/favorites.js
pages/api/users/search.js
- `process.env.JWT_SECRET` now appears exactly once in the JS source
(lib/auth-secret.js). `your-secret-key-change-in-production` is gone.
- TTL drift reconciled: auth-utils used `'7d'`, login/register used
inline `'24h'`. Both now route through imported `JWT_TOKEN_TTL` (24h).
Pre-deploy reminder: Vercel must have `JWT_SECRET` set before merge or
serverless functions refuse to boot. Existing tokens (signed against the
fallback literal) will be invalidated — users will need to log in again.
Resolves AGENTS.md gotcha #3. Brief 2/3/4/5 still pending in convoy.
Convoy: fix-auth-bypass / Brief 1
Co-authored-by: Cursor <cursoragent@cursor.com>
- Updated login and register APIs to use proper Vercel Postgres imports
- Fixed database queries to use sql template literal syntax
- Replaced old auth-utils imports with direct bcrypt and jwt usage
- Consistent JWT token generation across login and register endpoints
- Removed debugging console.log statements
- Login API now returns 200 with proper user data and JWT token
- All authentication endpoints working correctly with Neon database
- Login flow redirects properly to dashboard/admin based on user role
- Redesigned card display with 2.5:3.5 aspect ratio and image-only view
- Added infinite scroll to replace pagination
- Implemented authentic card back placeholders for MTG, Pokemon, and Lorcana
- Added rarity-based particle effects with tiered intensity (mythic/enchanted/rare/uncommon)
- Enhanced hover details panel with structured card information
- Fixed search functionality with debouncing and Enter key support
- Improved filter system with working TCG, rarity, set, and price filters
- Added favorite system for cards in both hover and detail views
- Updated card detail page with comprehensive metadata and actions
- Fixed API filtering with proper Vercel Postgres implementation
- Added particle animations and rarity glow effects
- Improved overall UX with better visual hierarchy and interactions
