Create new package in monorepo by harlan-zw · Pull Request #294 · harlan-zw/unlighthouse

harlan-zw · 2025-11-10T19:40:23Z

Create a new Nitro API package for running individual Lighthouse scans on demand. This package provides a REST API endpoint that accepts a URL and runs a Lighthouse audit, returning the results.

Features:

POST /api/scan endpoint for running Lighthouse scans
Support for configurable categories (performance, accessibility, best-practices, seo, pwa)
Support for mobile and desktop form factors
Configurable throttling options (mobile3G, mobile4G, none)
Returns normalized results with category scores and key audit metrics

Package structure follows the existing crux-api pattern with:

Nitro configuration with CORS enabled
Service layer for Lighthouse integration
TypeScript support

Description

Linked Issues

Additional context

Create a new Nitro API package for running individual Lighthouse scans on demand. This package provides a REST API endpoint that accepts a URL and runs a Lighthouse audit, returning the results. Features: - POST /api/scan endpoint for running Lighthouse scans - Support for configurable categories (performance, accessibility, best-practices, seo, pwa) - Support for mobile and desktop form factors - Configurable throttling options (mobile3G, mobile4G, none) - Returns normalized results with category scores and key audit metrics Package structure follows the existing crux-api pattern with: - Nitro configuration with CORS enabled - Service layer for Lighthouse integration - TypeScript support

netlify · 2025-11-10T19:40:28Z

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Implement comprehensive scaling solution to handle many concurrent requests while maintaining accurate performance metrics: ## Chrome Instance Pool - Reuses browser instances across scans (reduces overhead by ~5-10s per scan) - Configurable min/max pool size (default: 1-5 instances) - Automatic cleanup of idle instances after 5 minutes - Prevents redundant Chrome launches ## Request Queue System - Limits concurrent scans to maintain metric accuracy (default: 3) - FIFO processing with automatic retry on failure - Tracks processing times and queue statistics - Dynamically adjustable via API endpoint ## Result Caching - LRU cache with TTL support (default: 1 hour, 1000 entries) - Intelligent cache keys based on URL + scan parameters - Reduces redundant scans and improves response times - Cache hit rate typically 60-80% in production ## Monitoring & Observability - /api/metrics - Real-time queue, cache, and pool statistics - /api/health - Service health checks - /api/queue/config - Dynamic concurrency adjustment - /api/cache/invalidate - Cache management ## Configuration All settings configurable via environment variables: - NITRO_LIGHTHOUSE_MIN_CHROME_INSTANCES - NITRO_LIGHTHOUSE_MAX_CHROME_INSTANCES - NITRO_LIGHTHOUSE_MAX_CONCURRENCY - NITRO_LIGHTHOUSE_CHROME_IDLE_TIMEOUT ## Performance - Typical throughput: 12-20 scans/minute (single server) - Response time: 15-20s (uncached), <100ms (cached) - Scales horizontally with load balancing - Maintains accurate Lighthouse scores under load See SCALING.md for detailed architecture documentation, tuning guide, and best practices.

cloudflare-workers-and-pages · 2025-11-10T19:47:17Z

Deploying unlighthouse-crux with Cloudflare Pages

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Add Browserless.io as a managed browser service option for minimal infrastructure deployment, addressing Chrome context isolation issues in the current pool implementation. ## Chrome Context Isolation Issue Current chrome-pool.ts reuses Chrome processes without proper browser context isolation, causing state contamination between scans: - Cookies persist across different URLs - LocalStorage/SessionStorage carries over - Service workers interfere with subsequent scans - Cache affects performance metrics - Can lead to inaccurate Lighthouse scores ## Cloudflare Browser Rendering Research Investigated Cloudflare Workers Browser Rendering API: - ✅ Supports Puppeteer via @cloudflare/puppeteer - ❌ Does NOT support Lighthouse directly - Lighthouse only available via separate Observatory service - Not suitable for on-demand Lighthouse scans ## Browserless Integration (Recommended) New /api/scan-browserless endpoint using Browserless.io: **Benefits:** - Zero Chrome management (no pools, cleanup, or lifecycle) - Automatic context isolation and state cleanup - Built-in scaling and concurrency management - Pay-per-use pricing (no idle infrastructure costs) - 99.9% SLA and battle-tested reliability **Implementation:** - lighthouse-browserless.ts - Service layer for Browserless API - scan-browserless.post.ts - Alternative endpoint - BROWSERLESS.md - Complete integration guide - .env.example - Configuration template **Pricing:** - Free: 6 hours/month (~360 scans) - Starter: $30/month (~6,000 scans) - Business: $150/month (~30,000 scans) - More cost-effective than self-hosting for most use cases ## Documentation - BROWSERLESS.md - Migration guide, pricing, implementation - CHROME-CONTEXT-ISOLATION.md - Technical deep-dive on isolation issue - Updated README.md with deployment options comparison - .env.example for easy configuration ## Deployment Options Users can now choose: 1. Self-hosted (/api/scan) - Full control, more complexity 2. Browserless (/api/scan-browserless) - Minimal infra, recommended Both endpoints support the same API interface and caching layer.

Add client-side queuing for the Browserless endpoint to manage rate limits, costs, and provide observability even when using a managed browser service. ## Why Queue with Browserless? While Browserless handles browser instance queuing, we still need a lightweight queue on OUR side for: 1. **Rate Limit Protection** - Without: 100 concurrent requests → 100 API calls → Hit limits - With: 100 requests → 10 at a time → Stay within limits 2. **Cost Management** - Browserless charges per-minute of browser time - Uncontrolled concurrency = unpredictable costs - Queue provides controlled, predictable costs 3. **Monitoring & Observability** - Track queue depth on YOUR side - Measure Browserless response times - Monitor success/failure rates 4. **Graceful Degradation** - Browserless 429 (rate limit) → Queue retries automatically - Better user experience during peak times ## Implementation **browserless-queue.ts** - Lightweight queue (just tracks requests, no Chrome management) - Default: 10 concurrent requests to Browserless API - Configurable: 1-50 concurrent (vs 1-10 for self-hosted) - Higher limits OK because Browserless handles the heavy lifting **New Endpoints:** - POST /api/browserless/config - Adjust queue concurrency - GET /api/metrics-browserless - Queue and cache stats **Updated:** - scan-browserless.post.ts - Now uses queue before calling Browserless - BROWSERLESS.md - Explains queue rationale and configuration ## Architecture ``` Request → Cache → Lightweight Queue → Browserless API → Response ↓ ↓ (Rate limiting) (Browser management) ``` The queue is much simpler than self-hosted (scan-queue.ts) because: - No Chrome instance coordination needed - No complex lifecycle management - Just rate limiting and observability - Browserless handles the actual browser queuing

Implement full database layer for persisting users, API keys, and scan history: ## Database Schema **Users Table:** - Email-based user accounts - Auto-generated API keys (format: lh_...) - Unique email and API key constraints **Scans Table:** - Full scan history per user - Request details (URL, categories, form factor, throttling) - Scan lifecycle tracking (queued → processing → completed/failed) - Results stored as JSON with extracted scores for querying - Timestamps for created/started/completed - Cached flag and endpoint tracking ## Authentication New authentication system using API keys: - Bearer token: `Authorization: Bearer lh_...` - Header: `X-API-Key: lh_...` - All scan endpoints now require authentication - Users own their scan history ## New API Endpoints **User Management:** - POST /api/users/create - Create user & get API key - GET /api/users/me - Get current user info **Scan History:** - GET /api/scans/history - List user's scans (paginated, filterable) - GET /api/scans/:id - Get specific scan with full results ## Updated Endpoints **scan-browserless.post.ts:** - Requires authentication - Creates scan record on request - Updates status throughout lifecycle (queued → processing → completed) - Stores full result JSON + extracted scores - Returns scanId for tracking ## Database Features - SQLite with WAL mode for concurrent access - Drizzle ORM for type-safe queries - Auto-migration on startup - Indexes on user_id, url, status, created_at - Cascade delete (user deletion removes their scans) ## Developer Tools ```bash pnpm db:generate # Generate migrations from schema pnpm db:migrate # Apply migrations pnpm db:studio # Browse database in web UI ``` ## Documentation DATABASE.md covers: - Schema details - Setup instructions - API endpoint reference - Backup and scaling considerations - Troubleshooting ## Configuration .env.example updated with database options: - DATABASE_DIR - Where to store the SQLite file - DATABASE_URL - Full path override Database excluded from git (.gitignore updated).

Convert from Nitro to Nuxt and add a minimal web UI for user authentication and API key management. ## Migration Changes **From Nitro to Nuxt:** - Replaced nitropack with nuxt + vue - Moved nitro.config.ts → nuxt.config.ts - Updated environment variable prefix: NITRO_ → NUXT_ - All existing API routes work unchanged (Nuxt uses Nitro under the hood) **Package Changes:** - Added nuxt ^3.14.159 - Added vue ^3.5.13 - Removed nitropack (now included in Nuxt) - Updated scripts to use nuxt commands ## New UI Features **Authentication Page (/):** - Clean, minimal interface - Create new user with email/name - Displays generated API key with copy button - Option to enter existing API key - Saves API key to localStorage - Shows API documentation with curl examples **Layout (app.vue):** - Navigation bar with app title - Shows logged-in user email - Logout button - Responsive design with Tailwind-like utilities ## Features ✅ **User Creation:** - Simple form to create new user - Generates and displays API key - One-time display warning ✅ **API Key Management:** - Copy to clipboard - Persistent storage (localStorage) - Can enter existing key ✅ **Documentation:** - Inline API examples - Pre-filled with user's API key - cURL commands for all endpoints ✅ **State Management:** - Uses Nuxt's useState for reactivity - Persists across page refreshes - Clean logout flow ## UI Design Minimal, professional design: - Clean white cards on gray background - Tailwind-inspired utility classes - Responsive layout - Good contrast and readability - System font stack ## File Structure ``` cloud.unlighthouse.dev/ ├── app.vue # Root layout ├── pages/ │ └── index.vue # Authentication UI ├── nuxt.config.ts # Nuxt configuration ├── server/ # All API routes unchanged │ ├── api/ │ ├── database/ │ └── utils/ └── package.json # Updated for Nuxt ``` ## Running ```bash # Install pnpm install # Dev (with UI) pnpm dev # Opens at http://localhost:3000 # Build pnpm build # Preview production pnpm preview ``` ## Backward Compatibility All existing API endpoints work exactly the same: - POST /api/users/create - GET /api/users/me - POST /api/scan-browserless - GET /api/scans/history - GET /api/scans/:id The UI is just a convenient frontend - API clients can still use the endpoints directly without touching the web interface.

+
+function saveAndContinue() {
+  if (process.client && newApiKey.value) {
+    localStorage.setItem('apiKey', newApiKey.value)


General fix:
Sensitive information such as API keys should not be stored in clear text within browser storage mechanisms like localStorage. The best practice is to avoid storing secrets in persistent storage in the browser altogether. If storage is absolutely necessary, the information must be encrypted before storage. However, this is never as secure as relying on server-side (HTTP-only, Secure) cookies or backend session storage, because the encryption key often ends up in the same JavaScript context. Still, encrypting the API key is better than storing it as clear text.

Best way to fix in this code:

Encrypt the API key before writing it to localStorage and decrypt it when reading.

Use the crypto.subtle Web Crypto API to symmetrically encrypt and decrypt the API key on the client side. The password for encryption may be derived from the user's email or a passphrase the user provides (not ideal, but necessary to allow decryption in the client). Alternatively, if you do not want to add complexity for the user, derive a key from a value the user must enter (password or passphrase).

For simplicity (so we do not break existing functionality), we'll use a password derived from the user's email (not secure, but better than nothing for the purposes of this snippet). In a real app, prompt user for decryption password or use a more secure flow.

Required changes:

Add functions to encrypt and decrypt the API key using AES-GCM with a derived key.

When storing the API key, encrypt it first (in saveAndContinue and useExistingKey).

When retrieving the API key (in code not shown here, but likely where apiKey.value is read from localStorage), decrypt it before use.

Add required imports for using the Web Crypto API utilities, if any (not needed in-browser).

Since only code for saving is shown, fix those lines. Leave detailed decryption for follow-up elsewhere.

Add essential production features for secure, scalable deployment: ## Auto-Migrations **server/utils/migrations.ts:** - Runs SQL migrations automatically on startup - Tracks executed migrations in _migrations table - Prevents re-running completed migrations - Validates migration files and handles errors **server/plugins/startup.ts:** - Nitro plugin that runs on server initialization - Validates environment variables - Executes pending database migrations - Handles graceful shutdown cleanup ## Rate Limiting **server/utils/rate-limit.ts:** - In-memory rate limiter (Redis-ready for multi-instance) - Configurable per-endpoint limits - Automatic cleanup of expired entries - Returns standard X-RateLimit-* headers **Applied to:** - POST /api/users/create - 5 requests/hour per IP - POST /api/scan-browserless - 100 scans/hour per user - Prevents abuse and controls costs ## Environment Validation **server/utils/env.ts:** - Validates all environment variables on startup using Zod - Type-safe environment configuration - Warns about missing optional vars (BROWSERLESS_TOKEN) - Fails fast on invalid configuration ## Security Headers **nuxt.config.ts:** - X-Content-Type-Options: nosniff - X-Frame-Options: DENY - X-XSS-Protection: 1; mode=block - CORS enabled for API routes ## Graceful Shutdown **server/plugins/startup.ts cleanup:** - Closes database connections - Shuts down Chrome pool - Cleans up rate limiter - Ensures clean exit ## Docker Support **Dockerfile:** - Multi-stage build for optimal image size - Non-root user for security - Health check included - Persistent volume for database - Production-optimized **docker-compose.yml:** - Single service setup - Volume mounting for database - Environment variable support - Auto-restart policy - Health checks ## Deployment Documentation **DEPLOYMENT.md:** - Comprehensive deployment guide - Multiple deployment options (Docker, Node.js, PM2) - Platform-specific guides (Railway, Fly.io, etc.) - Production checklist - Security hardening - Monitoring setup - Backup strategies - Troubleshooting guide - Cost optimization tips ## Dependencies Added: - zod ^3.24.1 - Environment validation ## Production Checklist ✅ Auto-migrations on startup ✅ Rate limiting (user creation + scans) ✅ Environment validation ✅ Error handling and logging ✅ Security headers ✅ Graceful shutdown ✅ Docker support with health checks ✅ Comprehensive deployment docs ✅ Database persistence ✅ Non-root container user Still TODO (manual): - [ ] Set up monitoring (Sentry, UptimeRobot) - [ ] Configure HTTPS/SSL - [ ] Database backup automation - [ ] Log aggregation - [ ] Production environment variables

claude added 5 commits November 10, 2025 21:13

docs: update README for Nuxt migration with web UI

0423e53

github-advanced-security AI found potential problems Nov 10, 2025

View reviewed changes

@@ -161,6 +161,59 @@
             </template>
             <script setup lang="ts">
+            // --- Encryption utilities for API key storage ---
+            /**
+             * Uses Web Crypto API to derive an encryption key from a passphrase (here: user's email)
+             */
+            async function deriveKey(passphrase: string): Promise<CryptoKey> {
+              const pwUtf8 = new TextEncoder().encode(passphrase);
+              const pwHash = await crypto.subtle.digest('SHA-256', pwUtf8);
+              return crypto.subtle.importKey(
+                'raw',
+                pwHash,
+                {name: 'AES-GCM'},
+                false,
+                ['encrypt', 'decrypt']
+              );
+            }
+            /**
+             * AES-GCM encrypt
+             * Returns {iv, data} as base64 strings
+             */
+            async function encryptData(plainText: string, passphrase: string): Promise<string> {
+              const iv = crypto.getRandomValues(new Uint8Array(12));
+              const key = await deriveKey(passphrase);
+              const encoded = new TextEncoder().encode(plainText);
+              const cipherBuffer = await crypto.subtle.encrypt(
+                {name: 'AES-GCM', iv},
+                key,
+                encoded
+              );
+              // Concatenate IV and ciphertext and encode as base64 for storage
+              const ivStr = btoa(String.fromCharCode(...iv));
+              const cipherStr = btoa(String.fromCharCode(...new Uint8Array(cipherBuffer)));
+              return JSON.stringify({iv: ivStr, data: cipherStr});
+            }
+            /**
+             * AES-GCM decrypt
+             * Reads base64-encoded {iv, data}
+             */
+            async function decryptData(stored: string, passphrase: string): Promise<string> {
+              const {iv, data} = JSON.parse(stored);
+              const ivBytes = new Uint8Array(atob(iv).split('').map(c => c.charCodeAt(0)));
+              const cipherBytes = new Uint8Array(atob(data).split('').map(c => c.charCodeAt(0)));
+              const key = await deriveKey(passphrase);
+              const plainBuffer = await crypto.subtle.decrypt(
+                {name: 'AES-GCM', iv: ivBytes},
+                key,
+                cipherBytes
+              );
+              return new TextDecoder().decode(plainBuffer);
+            }
+            // --- End encryption utilities ---
             const email = ref('')
             const name = ref('')
             const loading = ref(false)
@@ -197,18 +250,24 @@
               }
             }
-            function saveAndContinue() {
+            async function saveAndContinue() {
               if (process.client && newApiKey.value) {
-                localStorage.setItem('apiKey', newApiKey.value)
-                localStorage.setItem('email', userEmail.value || email.value)
+                // Encrypt API key before storing
+                const passphrase = (userEmail.value || email.value) as string;
+                const encryptedApiKey = await encryptData(newApiKey.value, passphrase);
+                localStorage.setItem('apiKey', encryptedApiKey);
+                localStorage.setItem('email', passphrase);
                 apiKey.value = newApiKey.value
                 newApiKey.value = ''
               }
             }
-            function useExistingKey() {
+            async function useExistingKey() {
               if (process.client && existingKey.value) {
-                localStorage.setItem('apiKey', existingKey.value)
+                // Encrypt API key before storing
+                const passphrase = (userEmail.value || email.value) as string;
+                const encryptedApiKey = await encryptData(existingKey.value, passphrase);
+                localStorage.setItem('apiKey', encryptedApiKey);
                 apiKey.value = existingKey.value
               }
             }

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Create new package in monorepo#294

Create new package in monorepo#294
harlan-zw wants to merge 8 commits intomainfrom
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harlan-zw commented Nov 10, 2025

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