# Site Isolation Bug - Final Fix

## Problem
All sites (5, 10, 14, 15) were showing **IDENTICAL** settings and content types instead of site-specific data. This was a **CRITICAL data isolation bug**.

## Root Cause
The `IntegrationViewSet` extends `SiteSectorModelViewSet`, which only applies site filtering if the model has **BOTH** `site` AND `sector` fields.

The `SiteIntegration` model only has a `site` field (no `sector` field), so the condition on line 231 of `base.py` was **FALSE**:

```python
if hasattr(queryset.model, 'site') and hasattr(queryset.model, 'sector'):
```

This meant the entire site filtering block was **SKIPPED**, causing ALL integrations to be returned regardless of the `?site=X` parameter.

## The Fix

### File: `/data/app/igny8/backend/igny8_core/modules/integration/views.py`

Added `get_queryset()` method to `IntegrationViewSet` to manually filter by site:

```python
def get_queryset(self):
    """
    Override to filter integrations by site.
    SiteIntegration only has 'site' field (no 'sector'), so SiteSectorModelViewSet's
    filtering doesn't apply. We manually filter by site here.
    """
    queryset = super().get_queryset()
    
    # Get site parameter from query params
    site_id = self.request.query_params.get('site_id') or self.request.query_params.get('site')
    
    if site_id:
        try:
            site_id_int = int(site_id)
            queryset = queryset.filter(site_id=site_id_int)
        except (ValueError, TypeError):
            # Invalid site_id, return empty queryset
            queryset = queryset.none()
    
    return queryset
```

## Testing

### Before Fix:
- Site 5: Showed homeg8.com integration
- Site 10: Showed homeg8.com integration ❌ (WRONG)
- Site 14: Showed homeg8.com integration ❌ (WRONG)
- Site 15: Showed homeg8.com integration ❌ (WRONG)

### After Fix:
- Site 5: Shows its own integration ✅
- Site 10: Shows its own integration ✅
- Site 14: Shows its own integration ✅
- Site 15: Shows its own integration ✅

## API Behavior

### Before Fix:
```
GET /api/v1/integration/integrations/?site=10
→ Returns ALL integrations for ALL sites
```

### After Fix:
```
GET /api/v1/integration/integrations/?site=10
→ Returns ONLY integrations for site 10
```

## Security Impact

This was a **CRITICAL** data isolation bug that could cause:
- ✅ **Data leakage between sites** (FIXED)
- ✅ **Wrong content syncing to wrong sites** (FIXED)
- ✅ **Security/privacy violations** (FIXED)

## Deployment

1. Fix was applied to: `/data/app/igny8/backend/igny8_core/modules/integration/views.py`
2. Gunicorn workers were reloaded: `pkill -HUP -f 'gunicorn igny8_core.wsgi'`
3. Changes are **LIVE** and **WORKING**

---

**Status**: ✅ **FIXED AND DEPLOYED**
**Date**: 2025-11-22
**Critical**: YES