Implement M7: auth middleware, rate limiting, CORS, and GUI login flow

Add SHA-256 API key authentication with constant-time comparison, configurable
token bucket rate limiter, CORS origin allowlist middleware, and React auth
context with login page. Auth info endpoint bootstraps GUI without credentials.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
shankar0123
2026-03-15 11:58:13 -04:00
parent 2ba8245159
commit 28205e1131
12 changed files with 590 additions and 71 deletions
+7 -21
View File
@@ -31,9 +31,12 @@ You are my long-term copilot for building certctl — a self-hosted certificate
- [x] Test suite — 120 tests across service layer (63), handler layer (46), and integration (11 subtests)
- [x] Input validation — centralized validators for common name, CSR PEM, policy type/severity, string length
- [x] GitHub Actions CI — parallel Go (build, vet, test+coverage) and Frontend (tsc, vite build) jobs
- [x] API key auth enforced by default — SHA-256 hashed keys, constant-time comparison, Bearer token middleware
- [x] Token bucket rate limiting — configurable RPS/burst, 429 responses with Retry-After header
- [x] Configurable CORS — per-origin allowlist or wildcard, preflight caching
- [x] GUI auth flow — login screen, auth context, 401 auto-redirect, logout button
### What's NOT Wired Up Yet (Pre-v1.0 Gaps)
- [ ] **API authentication enforced**: Auth types exist but demo runs with `CERTCTL_AUTH_TYPE=none`. No rate limiting.
- [ ] **Agent-side key generation**: V1 uses server-side key generation for Local CA (pragmatic for dev/demo). Must move to agents before v1.0.
- [ ] **End-to-end test hardening**: Handler tests only cover 2 of 7 files. No negative-path integration tests (issuer down, malformed certs, DB failures). No scheduler or connector tests. No frontend tests.
@@ -62,32 +65,15 @@ Fixed nginx.go format string errors, added centralized input validation (validat
### M6: Functional GUI + CI ✅
All views wired to real API: agent detail page with heartbeat status + capabilities + recent jobs, audit trail with time range/actor/resource filters, notifications with grouped-by-cert view + read/unread state + mark-read mutations, policies with severity summary bar + config preview, new issuers and targets list views. GitHub Actions CI with parallel Go (build, vet, test+coverage) and Frontend (tsc, vite build) jobs. Makefile updated with test-cover and frontend-build targets.
### M7: Auth + Rate Limiting ✅
API key auth middleware with SHA-256 hashing and constant-time comparison. `CERTCTL_AUTH_TYPE=api-key` enforced by default; `none` requires explicit opt-in with log warning. Token bucket rate limiter (configurable via `CERTCTL_RATE_LIMIT_RPS` / `CERTCTL_RATE_LIMIT_BURST`). Configurable CORS via `CERTCTL_CORS_ORIGINS`. GUI: login page with API key entry, AuthProvider context, automatic 401 redirect, logout button in sidebar. Auth info endpoint (`GET /api/v1/auth/info`) served without auth so GUI can detect auth mode. Auth check endpoint (`GET /api/v1/auth/check`) validates credentials.
---
## V1 Roadmap: Ship a Functional Product
The principle: **every backend feature ships with its corresponding GUI surface.** The GUI is where ops teams spend 80% of their time — it must be an operational tool, not a demo viewer.
### M7: Auth + Rate Limiting
**Goal**: Make the API production-safe for shared/team environments.
**Authentication:**
- API key auth middleware enforced by default (`CERTCTL_AUTH_TYPE=api-key`)
- Key generation and hashing (bcrypt/argon2) for stored keys
- Auth bypass only with explicit `CERTCTL_AUTH_TYPE=none` flag
- GUI: API key entry/login screen, key passed via `Authorization: Bearer` header
**Rate limiting:**
- Token bucket rate limiter on all API endpoints (`golang.org/x/time/rate`)
- Configurable per-endpoint or global limits via `CERTCTL_RATE_LIMIT_RPS`
- 429 Too Many Requests response with `Retry-After` header
**CORS:**
- Configurable allowed origins for dashboard (`CERTCTL_CORS_ORIGINS`)
- Sensible defaults for same-origin deployment
**Deliverables**: Auth enforced by default, rate limits active, CORS configured. certctl deployable in shared environments.
### M8: Agent-Side Key Generation
**Goal**: Private keys never leave agent infrastructure. This is the crypto architecture gate for v1.0.