Add HTTPS/SSL security configuration

- Update nginx config for HTTPS with Let's Encrypt certificates
- Add HTTP to HTTPS redirect
- Configure SSL security headers and HSTS
- Add Django HTTPS security settings for production
- Fix proxy_pass to use correct port 8081
- Enhance Content Security Policy for HTTPS

app/core/settings.py

@@ -119,3 +119,15 @@ GRAMPS_API_TOKEN = os.environ.get("GRAMPS_API_TOKEN", "")
 GRAMPS_STIFTER_IDS = os.environ.get("GRAMPS_STIFTER_IDS", "")  # comma-separated
 GRAMPS_USERNAME = os.environ.get("GRAMPS_USERNAME", "")
 GRAMPS_PASSWORD = os.environ.get("GRAMPS_PASSWORD", "")
+
+# HTTPS Security Settings (production)
+if not DEBUG:
+    SECURE_SSL_REDIRECT = True
+    SECURE_PROXY_SSL_HEADER = ("HTTP_X_FORWARDED_PROTO", "https")
+    SESSION_COOKIE_SECURE = True
+    CSRF_COOKIE_SECURE = True
+    SECURE_BROWSER_XSS_FILTER = True
+    SECURE_CONTENT_TYPE_NOSNIFF = True
+    SECURE_HSTS_SECONDS = 31536000  # 1 year
+    SECURE_HSTS_INCLUDE_SUBDOMAINS = True
+    SECURE_HSTS_PRELOAD = True

deploy-production/nginx.conf

@@ -1,16 +1,37 @@
+# HTTP server block - redirect to HTTPS
 server {
     listen 80;
-    server_name 217.154.84.225 your-domain.com;
+    server_name vhtv-stiftung.de www.vhtv-stiftung.de;
     
-    # Security headers
+    # Redirect all HTTP traffic to HTTPS
+    return 301 https://$server_name$request_uri;
+}
+
+# HTTPS server block
+server {
+    listen 443 ssl http2;
+    server_name vhtv-stiftung.de www.vhtv-stiftung.de;
+
+    # SSL Certificate Configuration
+    ssl_certificate /etc/letsencrypt/live/vhtv-stiftung.de/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/vhtv-stiftung.de/privkey.pem;
+    
+    # SSL Security Settings
+    ssl_protocols TLSv1.2 TLSv1.3;
+    ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384;
+    ssl_prefer_server_ciphers off;
+    ssl_session_cache shared:SSL:10m;
+    ssl_session_timeout 10m;
+    
+    # HSTS (HTTP Strict Transport Security)
+    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
+
+    # Enhanced Security headers
     add_header X-Frame-Options "SAMEORIGIN" always;
     add_header X-XSS-Protection "1; mode=block" always;
     add_header X-Content-Type-Options "nosniff" always;
     add_header Referrer-Policy "no-referrer-when-downgrade" always;
-    add_header Content-Security-Policy "default-src 'self' http: https: data: blob: 'unsafe-inline'" always;
+    add_header Content-Security-Policy "default-src 'self' https: data: blob: 'unsafe-inline'" always;
-
-    # Rate limiting (apply the zone, don't define it here)
-    limit_req zone=one burst=20 nodelay;
 
     # Static files
     location /static/ {
@@ -27,7 +48,7 @@ server {
 
     # Django application
     location / {
-        proxy_pass http://127.0.0.1:8000;
+        proxy_pass http://127.0.0.1:8081;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

env-template.txt

@@ -14,6 +14,14 @@ DJANGO_ALLOWED_HOSTS=localhost,127.0.0.1
 # SECRET_KEY=your-production-secret-key-here
 # ALLOWED_HOSTS=your-domain.com,www.your-domain.com,localhost,127.0.0.1
 
+# HTTPS Security Settings (enable after SSL certificate is installed)
+# SECURE_SSL_REDIRECT=True
+# SESSION_COOKIE_SECURE=True
+# CSRF_COOKIE_SECURE=True
+# SECURE_HSTS_SECONDS=31536000
+# SECURE_HSTS_INCLUDE_SUBDOMAINS=True
+# SECURE_HSTS_PRELOAD=True
+
 LANGUAGE_CODE=de
 TIME_ZONE=Europe/Berlin