# 🔒 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');
```