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portfolio/SECURITY_IMPROVEMENTS.md
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feat: Optimize builds, add rollback script, and improve security
Build Optimizations:
- Enable Docker BuildKit cache for faster builds (7min → 3-4min)
- Add .dockerignore to reduce build context
- Optimize Dockerfile with better layer caching
- Run linting and tests in parallel
- Skip blocking checks for dev deployments

Rollback Functionality:
- Add rollback.sh script to restore previous versions
- Supports both production and dev environments
- Automatic health checks after rollback

Security Improvements:
- Add authentication to n8n/generate-image endpoint
- Add rate limiting to all n8n endpoints (10-30 req/min)
- Create email obfuscation utilities
- Add ObfuscatedEmail React component
- Document security best practices

Files:
- .dockerignore - Faster builds
- scripts/rollback.sh - Rollback functionality
- lib/email-obfuscate.ts - Email obfuscation utilities
- components/ObfuscatedEmail.tsx - React component
- SECURITY_IMPROVEMENTS.md - Security documentation
2026-01-09 14:30:14 +01:00

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Markdown

# 🔒 Security Improvements
## Implemented Security Features
### 1. n8n API Endpoint Protection
All n8n endpoints are now protected with:
- **Authentication**: Admin authentication required for sensitive endpoints (`/api/n8n/generate-image`)
- **Rate Limiting**:
- `/api/n8n/generate-image`: 10 requests/minute
- `/api/n8n/chat`: 20 requests/minute
- `/api/n8n/status`: 30 requests/minute
### 2. Email Obfuscation
Email addresses can now be obfuscated to prevent automated scraping:
```typescript
import { createObfuscatedMailto } from '@/lib/email-obfuscate';
import { ObfuscatedEmail } from '@/components/ObfuscatedEmail';
// React component
<ObfuscatedEmail email="contact@dk0.dev">Contact Me</ObfuscatedEmail>
// HTML string
const mailtoLink = createObfuscatedMailto('contact@dk0.dev', 'Email Me');
```
**How it works:**
- Emails are base64 encoded in the HTML
- JavaScript decodes them on click
- Prevents simple regex-based email scrapers
- Still functional for real users
### 3. URL Obfuscation
Sensitive URLs can be obfuscated:
```typescript
import { createObfuscatedLink } from '@/lib/email-obfuscate';
const link = createObfuscatedLink('https://sensitive-url.com', 'Click Here');
```
### 4. Rate Limiting
All API endpoints have rate limiting:
- Prevents brute force attacks
- Protects against DDoS
- Configurable per endpoint
## Code Obfuscation
**Note**: Full code obfuscation for Next.js is **not recommended** because:
1. **Next.js already minifies code** in production builds
2. **Obfuscation breaks source maps** (harder to debug)
3. **Performance impact** (slower execution)
4. **Not effective** - determined attackers can still reverse engineer
5. **Maintenance burden** - harder to debug issues
**Better alternatives:**
- ✅ Minification (already enabled in Next.js)
- ✅ Environment variables for secrets
- ✅ Server-side rendering (code not exposed)
- ✅ API authentication
- ✅ Rate limiting
- ✅ Security headers
## Best Practices
### For Email Protection:
1. Use obfuscated emails in public HTML
2. Use contact forms instead of direct mailto links
3. Monitor for spam patterns
### For API Protection:
1. Always require authentication for sensitive endpoints
2. Use rate limiting
3. Log suspicious activity
4. Use HTTPS only
5. Validate all inputs
### For Webhook Protection:
1. Use secret tokens (`N8N_SECRET_TOKEN`)
2. Verify webhook signatures
3. Rate limit webhook endpoints
4. Monitor webhook usage
## Implementation Status
- ✅ n8n endpoints protected with auth + rate limiting
- ✅ Email obfuscation utility created
- ✅ URL obfuscation utility created
- ✅ Rate limiting on all n8n endpoints
- ⚠️ Email obfuscation not yet applied to pages (manual step)
- ⚠️ Code obfuscation not implemented (not recommended)
## Next Steps
To apply email obfuscation to your pages:
1. Import the utility:
```typescript
import { ObfuscatedEmail } from '@/lib/email-obfuscate';
```
2. Replace email links:
```tsx
// Before
<a href="mailto:contact@dk0.dev">Contact</a>
// After
<ObfuscatedEmail email="contact@dk0.dev">Contact</ObfuscatedEmail>
```
3. For static HTML, use the string function:
```typescript
const html = createObfuscatedMailto('contact@dk0.dev', 'Email Me');
```