# Configuracion de Imagenes Externas en Directus HST

## Problema
Las imagenes almacenadas en URLs externas (tzrtech.org) no se visualizaban en Directus debido a Content Security Policy (CSP).

## Solucion Implementada

### 1. Extension Display External-Image
Ubicacion: `/opt/hst/directus/extensions/directus-extension-external-image/`

```javascript
// dist/index.js - Renderiza URLs como imagenes
import{defineComponent as d,h as c}from"vue";
var a=d({props:{value:{type:String,default:null}},render(){return this.value?c("img",{src:this.value,style:"max-height:40px;max-width:100px;object-fit:contain;border-radius:4px",loading:"lazy"}):c("span",{style:"color:#ccc"},"—")}});
export default{id:"external-image",name:"External Image",icon:"image",component:a,options:[],types:["string","text"]};
```

### 2. CSP en Docker Compose
```yaml
environment:
  CONTENT_SECURITY_POLICY_DIRECTIVES__IMG_SRC: "self data: blob: https://tzrtech.org https://*.tzrtech.org"
```

### 3. CORS en Nginx
```nginx
location ~* \.(png|jpg|jpeg|gif|webp|svg|ico)$ {
    add_header Access-Control-Allow-Origin * always;
    add_header Access-Control-Allow-Methods "GET, OPTIONS" always;
    try_files $uri =404;
}
```

### 4. Estructura de URLs

| Campo | URL Pattern |
|-------|-------------|
| img_url | https://tzrtech.org/{table}/{mrf}.png |
| img_thumb_url | https://tzrtech.org/{table}/thumb/{mrf}.png |

## Campos Configurados

| Tabla | Campos |
|-------|--------|
| hst | img_url, img_thumb_url |
| flg | img_url, img_thumb_url |
| ply | img_thumb_url |
| itm | img_thumb_url |
| loc | img_thumb_url |

## Archivos Relevantes

- Extension: `/opt/hst/directus/extensions/directus-extension-external-image/`
- Docker Compose: `/opt/hst/docker-compose.yml`
- Nginx config: `/etc/nginx/sites-available/tzrtech.org`

## Notas
- La extension debe estar en la carpeta `extensions/` de Directus
- Reiniciar Directus despues de modificar la extension
- El CSP permite imagenes de tzrtech.org y subdominios