Add autoproxy feature

config_local.php

@@ -36,4 +36,10 @@ namespace {
         $ASSETS_URL = $PROXY_URL.'/assets/';
         unset($PROXY_URL);
     }
+
+    // Use autoproxy
+    if (getenv('AUTO_PROXY')) {
+        $ABSOLUTE_URI_STUDIP = $_SERVER['HTTP_X_FORWARDED_PROTO'].'://'.$_SERVER['HTTP_X_FORWARDED_HOST'].'/';
+        $ASSETS_URL = $ABSOLUTE_URI_STUDIP.'/assets/';
+    }
 }
\ No newline at end of file

docker-compose.yml

@@ -28,8 +28,9 @@ services:
       # Use automigrate to migrate your instance on startup
       # AUTO_MIGRATE: 1
 
-      # Use proxy url if run behind a proxy
+      # Use proxy url OR autoproxy if run behind a proxy
       # PROXY_URL: https://studip.example.com/
+      # AUTO_PROXY: 1
 
 volumes:
   db_data: {}