Align Sinbad2 HTTPS deployment with orcid2sword reverse-proxy pattern.

This adds nginx dual-path routing, forwarded proxy headers, Uvicorn proxy-headers, production security settings, and deployment docs for https://sinbad2.ujaen.es/generadorexamenesllm/.

.gitlab-ci.yml

@@ -46,6 +46,9 @@ deploy_to_sinbad2:
 
       export BACKEND_PORT=$BACKEND_PORT
       export FRONTEND_PORT=$FRONTEND_PORT
+      export ENVIRONMENT=production
+      export PUBLIC_BASE_URL="https://sinbad2.ujaen.es/generadorexamenesllm"
+      export TRUSTED_HOSTS="sinbad2.ujaen.es,localhost,127.0.0.1"
       export ALLOWED_ORIGINS="https://sinbad2.ujaen.es,http://sinbad2.ujaen.es,http://sinbad2.ujaen.es:$FRONTEND_PORT"
       export VITE_APP_BASE_PATH="/generadorexamenesllm/"
       export VITE_API_URL=""

backend/.env.example

@@ -1,6 +1,15 @@
 # --- Aplicación ---
 APP_NAME=GenExamenes IA
-ENVIRONMENT=local
+ENVIRONMENT=production
+
+# URL pública HTTPS (Apache termina TLS; contenedores en HTTP interno)
+PUBLIC_BASE_URL=https://sinbad2.ujaen.es/generadorexamenesllm
+
+# Hosts aceptados por TrustedHostMiddleware (sin esquema ni puerto)
+TRUSTED_HOSTS=sinbad2.ujaen.es,localhost,127.0.0.1
+
+# HSTS (segundos; 1 año por defecto)
+SECURITY_HSTS_SECONDS=31536000
 
 # Clave legacy (reservada; las rutas /exam usan JWT de usuario).
 API_KEY=change-me-in-production-min-16-chars
@@ -8,7 +17,7 @@ API_KEY=change-me-in-production-min-16-chars
 # --- Base de datos (Docker: host "db") ---
 DATABASE_URL=postgresql+psycopg://genexamenes:genexamenes@db:5432/genexamenes
 
-# --- CORS (orígenes del frontend, separados por coma) ---
+# --- CORS (orígenes HTTPS del frontend; separados por coma) ---
 ALLOWED_ORIGINS=https://sinbad2.ujaen.es,http://sinbad2.ujaen.es,http://sinbad2.ujaen.es:8075
 
 # --- Rate limiting y tamaño de petición ---

backend/Dockerfile

@@ -25,4 +25,9 @@ USER app
 
 EXPOSE 8074
 
-CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8074"]
+CMD ["uvicorn", "app.main:app", \
+     "--host", "0.0.0.0", \
+     "--port", "8074", \
+     "--proxy-headers", \
+     "--forwarded-allow-ips", "*", \
+     "--no-server-header"]

backend/app/core/config.py

@@ -7,6 +7,9 @@ from pydantic_settings import BaseSettings, SettingsConfigDict
 class Settings(BaseSettings):
     app_name: str = "GenExamenes IA"
     environment: str = "local"
+    public_base_url: str = "https://sinbad2.ujaen.es/generadorexamenesllm"
+    trusted_hosts: str = "sinbad2.ujaen.es,localhost,127.0.0.1"
+    security_hsts_seconds: int = Field(default=31_536_000, ge=0)
     api_prefix: str = ""
     api_key: str = Field(min_length=16)
     database_url: str = "postgresql+psycopg://genexamenes:genexamenes@localhost:5432/genexamenes"
@@ -41,10 +44,18 @@ class Settings(BaseSettings):
         extra="ignore",
     )
 
+    @property
+    def is_production(self) -> bool:
+        return self.environment.lower() in {"production", "prod"}
+
     @property
     def cors_origins(self) -> list[str]:
         return [origin.strip() for origin in self.allowed_origins.split(",") if origin.strip()]
 
+    @property
+    def trusted_hosts_list(self) -> list[str]:
+        return [host.strip() for host in self.trusted_hosts.split(",") if host.strip()]
+
 
 @lru_cache
 def get_settings() -> Settings:

backend/app/core/security_headers.py

@@ -0,0 +1,30 @@
+from fastapi import Request, Response
+from starlette.middleware.base import BaseHTTPMiddleware, RequestResponseEndpoint
+
+from app.core.config import Settings
+
+
+class SecurityHeadersMiddleware(BaseHTTPMiddleware):
+    """Cabeceras de seguridad; HSTS en producción o cuando el proxy indica HTTPS."""
+
+    def __init__(self, app: object, settings: Settings) -> None:
+        super().__init__(app)
+        self._settings = settings
+
+    async def dispatch(self, request: Request, call_next: RequestResponseEndpoint) -> Response:
+        response = await call_next(request)
+
+        response.headers.setdefault("X-Content-Type-Options", "nosniff")
+        response.headers.setdefault("X-Frame-Options", "SAMEORIGIN")
+        response.headers.setdefault("Referrer-Policy", "strict-origin-when-cross-origin")
+
+        forwarded_proto = request.headers.get("x-forwarded-proto", request.url.scheme)
+        is_https = forwarded_proto == "https" or request.url.scheme == "https"
+
+        if is_https or self._settings.is_production:
+            hsts = f"max-age={self._settings.security_hsts_seconds}"
+            if self._settings.is_production:
+                hsts += "; includeSubDomains"
+            response.headers.setdefault("Strict-Transport-Security", hsts)
+
+        return response

backend/app/main.py

@@ -1,13 +1,15 @@
 from contextlib import asynccontextmanager
 from collections.abc import AsyncIterator
 
-from fastapi import Depends, FastAPI
+from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
+from starlette.middleware.trustedhost import TrustedHostMiddleware
 
 from app.api.routes import auth, exports, generation, health, history, images, materials, questions, templates
 from app.core.config import get_settings
 from app.core.errors import register_exception_handlers
 from app.core.middleware import RateLimitMiddleware, RequestSizeLimitMiddleware
+from app.core.security_headers import SecurityHeadersMiddleware
 from app.db.init_db import init_db
 
 
@@ -25,6 +27,9 @@ def create_app() -> FastAPI:
     # las peticiones OPTIONS (preflight) respondan antes que rate limit, etc.
     app.add_middleware(RequestSizeLimitMiddleware, settings=settings)
     app.add_middleware(RateLimitMiddleware, settings=settings)
+    app.add_middleware(SecurityHeadersMiddleware, settings=settings)
+    if settings.trusted_hosts_list:
+        app.add_middleware(TrustedHostMiddleware, allowed_hosts=settings.trusted_hosts_list)
     app.add_middleware(
         CORSMiddleware,
         allow_origins=settings.cors_origins,

deploy/DESPLIEGUE_SINBAD2.md

@@ -0,0 +1,74 @@
+# Despliegue en Sinbad2 (HTTPS vía Apache)
+
+Patrón equivalente a **orcid2sword**: TLS en Apache, contenedores en HTTP en puertos internos.
+
+## URL pública
+
+`https://sinbad2.ujaen.es/generadorexamenesllm/`
+
+No usar `/deckofcars/` ni `/deckofcards/` (son otros proyectos).
+
+## 1. GitLab CI (este repositorio)
+
+El job `deploy_to_sinbad2` en `.gitlab-ci.yml`:
+
+1. Copia el código por SSH a Sinbad2.
+2. Ejecuta `docker compose build` y `docker compose up -d`.
+3. Expone servicios en **HTTP** (sin certificados en Docker):
+   - Frontend → `:8075`
+   - Backend → `:8074`
+
+Variables de despliegue:
+
+| Variable | Valor |
+|----------|--------|
+| `VITE_APP_BASE_PATH` | `/generadorexamenesllm/` |
+| `VITE_API_URL` | *(vacío: misma base HTTPS vía nginx)* |
+| `ENVIRONMENT` | `production` |
+| `PUBLIC_BASE_URL` | `https://sinbad2.ujaen.es/generadorexamenesllm` |
+| `ALLOWED_ORIGINS` | `https://sinbad2.ujaen.es,...` |
+
+## 2. Apache (gestión UJA — no está en este repo)
+
+Fragmento mínimo (`deploy/apache-reverse-proxy.conf`):
+
+```apache
+ProxyPass        /generadorexamenesllm  http://host.docker.internal:8075/
+ProxyPassReverse /generadorexamenesllm  http://host.docker.internal:8075/
+```
+
+| Paso | Qué ocurre |
+|------|------------|
+| Certificado SSL | Lo proporciona el servidor institucional |
+| Entrada pública | `https://sinbad2.ujaen.es/generadorexamenesllm/` |
+| Proxy | Apache reenvía a `:8075` (HTTP) y **quita** el prefijo |
+| Nginx contenedor | Sirve SPA y hace proxy de `/auth/` y `/exam/` al backend |
+
+Si falta el `ProxyPass`, la ruta la atiende el CMS de Sinbad2 (home del grupo).
+
+## 3. Adaptaciones en la aplicación
+
+### Frontend
+
+- Build con `VITE_APP_BASE_PATH=/generadorexamenesllm/`.
+- `nginx.conf` entiende rutas **con prefijo** (acceso directo `:8075`) y **sin prefijo** (tras Apache).
+- Proxy interno al backend; cabeceras `X-Forwarded-Proto` / `Host` propagadas desde Apache.
+
+### Backend
+
+- Uvicorn con `--proxy-headers` y `--forwarded-allow-ips *`.
+- `TrustedHostMiddleware` + cabeceras HSTS en producción.
+- CORS con origen `https://sinbad2.ujaen.es`.
+
+## 4. Comprobaciones
+
+```bash
+# Directo al contenedor (HTTP, con prefijo)
+curl -I http://sinbad2.ujaen.es:8075/generadorexamenesllm/
+
+# Tras Apache (HTTPS)
+curl -I https://sinbad2.ujaen.es/generadorexamenesllm/
+
+# API vía nginx del frontend
+curl https://sinbad2.ujaen.es/generadorexamenesllm/health
+```

deploy/apache-reverse-proxy.conf

@@ -1,7 +1,13 @@
-# Fragmento para el VirtualHost de sinbad2.ujaen.es (HTTPS).
+# Apache en sinbad2.ujaen.es (VirtualHost HTTPS) — gestión UJA.
-# Sin esto, /generadorexamenesllm/ lo atiende el CMS de Sinbad2 y no la app Docker.
+# Sin estas líneas, /generadorexamenesllm/ lo sirve el CMS de Sinbad2, no la app Docker.
+#
+# URL pública: https://sinbad2.ujaen.es/generadorexamenesllm/
+# Contenedor frontend (HTTP): host.docker.internal:8075
+# Contenedor backend (HTTP, solo interno): :8074
 
 ProxyPass        /generadorexamenesllm  http://host.docker.internal:8075/
 ProxyPassReverse /generadorexamenesllm  http://host.docker.internal:8075/
 
-# URL pública: https://sinbad2.ujaen.es/generadorexamenesllm/
+# Opcional: reenviar cabeceras de proxy (Apache 2.4+)
+# RequestHeader set X-Forwarded-Proto "https"
+# RequestHeader set X-Forwarded-Host "sinbad2.ujaen.es"

docker-compose.yml

@@ -6,6 +6,9 @@ services:
       - ./backend/.env
     environment:
       DATABASE_URL: postgresql+psycopg://genexamenes:genexamenes@db:5432/genexamenes
+      ENVIRONMENT: ${ENVIRONMENT:-production}
+      PUBLIC_BASE_URL: ${PUBLIC_BASE_URL:-https://sinbad2.ujaen.es/generadorexamenesllm}
+      TRUSTED_HOSTS: ${TRUSTED_HOSTS:-sinbad2.ujaen.es,localhost,127.0.0.1}
       # Sobrescribe backend/.env con el origen público del frontend en despliegue.
       ALLOWED_ORIGINS: ${ALLOWED_ORIGINS:-https://sinbad2.ujaen.es,http://sinbad2.ujaen.es,http://sinbad2.ujaen.es:8075}
       LLM_BASE_URL: 

frontend/Dockerfile

@@ -17,6 +17,7 @@ RUN npm run build
 # --- Serve stage ---
 FROM nginx:1.27-alpine AS serve
 COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY proxy_params.conf /etc/nginx/snippets/proxy_params.conf
 COPY --from=build /app/dist /usr/share/nginx/html
 EXPOSE 80
 CMD ["nginx", "-g", "daemon off;"]

frontend/README.md

@@ -64,13 +64,22 @@ docker compose up --build
 Las variables `VITE_APP_BASE_PATH`, `VITE_API_URL` y `VITE_GOOGLE_CLIENT_ID` pueden pasarse como
 variables de entorno al ejecutar `docker compose`.
 
-## Despliegue HTTPS en subruta (Sinbad2)
+## Despliegue HTTPS en Sinbad2 (patrón orcid2sword)
 
-La app **no** va bajo `/deckofcars/` (eso es otro sitio). La URL pública es:
+Documentación completa: [`deploy/DESPLIEGUE_SINBAD2.md`](../deploy/DESPLIEGUE_SINBAD2.md)
 
-`https://sinbad2.ujaen.es/generadorexamenesllm/`
+Resumen:
 
-En Apache del servidor deben existir estas líneas (el prefijo se quita al llegar al contenedor en el puerto 8075):
+| Capa | Responsabilidad |
+|------|-----------------|
+| Apache (UJA) | Certificado SSL, `ProxyPass` a `:8075` |
+| GitLab CI | `docker compose up`, build con base path |
+| Nginx contenedor | SPA + proxy `/auth/` y `/exam/` al backend |
+| Backend Uvicorn | `--proxy-headers`, HSTS, CORS HTTPS |
+
+URL pública: **`https://sinbad2.ujaen.es/generadorexamenesllm/`**
+
+Apache (fragmento):
 
 ```apache
 ProxyPass        /generadorexamenesllm  http://host.docker.internal:8075/
@@ -84,7 +93,7 @@ VITE_APP_BASE_PATH=/generadorexamenesllm/
 VITE_API_URL=
 ```
 
-Si Apache no tiene ese `ProxyPass`, el navegador verá la web principal de Sinbad2 en lugar de esta app.
+El navegador habla solo con HTTPS (Apache → nginx → backend); no hay mixed content ni CORS cruzado entre puertos.
 
 ## Manejo de errores
 

frontend/nginx.conf

@@ -1,46 +1,82 @@
+# Nginx del contenedor frontend (HTTP interno, puerto 80 → publicado en 8075).
+#
+# Flujo HTTPS (igual que orcid2sword en Sinbad2):
+#   1. Usuario → https://sinbad2.ujaen.es/generadorexamenesllm/
+#   2. Apache termina TLS y hace ProxyPass al puerto 8075 (HTTP).
+#   3. Con ProxyPass ... http://host:8075/  Apache QUITA el prefijo /generadorexamenesllm
+#      y el contenedor recibe /, /assets/, /auth/, etc.
+#   4. Acceso directo al puerto 8075 (sin Apache) usa el prefijo /generadorexamenesllm/
+#      porque el build de Vite lleva VITE_APP_BASE_PATH=/generadorexamenesllm/
+
+map $http_x_forwarded_proto $forwarded_proto {
+    default $http_x_forwarded_proto;
+    ""      $scheme;
+}
+
+map $http_x_forwarded_host $forwarded_host {
+    default $http_x_forwarded_host;
+    ""      $host;
+}
+
 server {
     listen 80;
     server_name _;
     root /usr/share/nginx/html;
     index index.html;
 
-    # Backend API dentro de la misma base HTTPS (evita mixed content).
+    gzip on;
+    gzip_types text/css application/javascript application/json image/svg+xml;
+    gzip_min_length 1024;
+
+    # --- API: rutas sin prefijo (Apache quita /generadorexamenesllm) ---
     location /auth/ {
         proxy_pass http://backend:8074/auth/;
-        proxy_http_version 1.1;
+        include /etc/nginx/snippets/proxy_params.conf;
-        proxy_set_header Host $host;
-        proxy_set_header X-Forwarded-Proto $scheme;
-        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
     }
 
     location /exam/ {
         proxy_pass http://backend:8074/exam/;
-        proxy_http_version 1.1;
+        include /etc/nginx/snippets/proxy_params.conf;
-        proxy_set_header Host $host;
-        proxy_set_header X-Forwarded-Proto $scheme;
-        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
     }
 
     location = /health {
         proxy_pass http://backend:8074/health;
-        proxy_http_version 1.1;
+        include /etc/nginx/snippets/proxy_params.conf;
-        proxy_set_header Host $host;
+    }
-        proxy_set_header X-Forwarded-Proto $scheme;
+
-        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    location /assets/ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+        try_files $uri =404;
     }
 
-    # SPA: cualquier ruta desconocida sirve index.html (React Router).
     location / {
         try_files $uri $uri/ /index.html;
     }
 
-    # Cache de assets con hash.
+    # --- Mismo contenido/API bajo prefijo público (acceso directo :8075 o si Apache no quita prefijo) ---
-    location /assets/ {
+    location ^~ /generadorexamenesllm/auth/ {
+        proxy_pass http://backend:8074/auth/;
+        include /etc/nginx/snippets/proxy_params.conf;
+    }
+
+    location ^~ /generadorexamenesllm/exam/ {
+        proxy_pass http://backend:8074/exam/;
+        include /etc/nginx/snippets/proxy_params.conf;
+    }
+
+    location = /generadorexamenesllm/health {
+        proxy_pass http://backend:8074/health;
+        include /etc/nginx/snippets/proxy_params.conf;
+    }
+
+    location ^~ /generadorexamenesllm/assets/ {
+        alias /usr/share/nginx/html/assets/;
         expires 1y;
         add_header Cache-Control "public, immutable";
     }
 
-    gzip on;
+    location ^~ /generadorexamenesllm/ {
-    gzip_types text/css application/javascript application/json image/svg+xml;
+        try_files $uri $uri/ /index.html;
-    gzip_min_length 1024;
+    }
 }

frontend/proxy_params.conf

@@ -0,0 +1,7 @@
+proxy_http_version 1.1;
+proxy_set_header Host $forwarded_host;
+proxy_set_header X-Real-IP $remote_addr;
+proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+proxy_set_header X-Forwarded-Proto $forwarded_proto;
+proxy_set_header X-Forwarded-Host $forwarded_host;
+proxy_redirect off;