media: require staff login for media access

docker/production/nginx/kompass.nginx.conf

@@ -12,7 +12,8 @@ server {
         alias /var/www/jdav_web/static;
     }
 
-    location /media {
+    location /protected {
+        internal;
         alias /var/www/jdav_web/media;
     }
 

jdav_web/jdav_web/urls.py

@@ -20,13 +20,13 @@ from django.conf.urls.i18n import i18n_patterns
 from django.conf import settings
 from django.utils.translation import gettext_lazy as _
 from django.views.generic.base import RedirectView
-
-urlpatterns = static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
+from .views import media_access
 
 admin.site.index_title = _('Startpage')
 admin.site.site_header = 'Kompass'
 
-urlpatterns += i18n_patterns(
+urlpatterns = i18n_patterns(
+    re_path(r'^media/(?P<path>.*)', media_access, name='media'),
     re_path(r'^kompass/?', admin.site.urls, name='kompass'),
     re_path(r'^jet/', include('jet.urls', 'jet')), # Django JET URLS
     re_path(r'^admin/?', RedirectView.as_view(url='/kompass')),

jdav_web/jdav_web/views.py

@@ -0,0 +1,16 @@
+from django.http import HttpResponse
+from django.views.static import serve
+from django.conf import settings
+from django.contrib.admin.views.decorators import staff_member_required
+
+@staff_member_required
+def media_access(request, path):
+    if settings.DEBUG:
+        # if DEBUG is enabled, directly serve file
+        return serve(request, path, document_root=settings.MEDIA_ROOT)
+    # otherwise create a redirect to the internal nginx endpoint at /protected
+    response = HttpResponse()
+    # Content-type will be detected by nginx
+    del response['Content-Type']
+    response['X-Accel-Redirect'] = '/protected/' + path
+    return response