implemented legacy download links

web/src/main/java/de/srsoftware/umbrella/web/WebHandler.java

@@ -20,6 +20,14 @@ public class WebHandler extends BaseHandler {
 	@Override
 	public boolean doGet(Path path, HttpExchange ex) throws IOException {
 		LOG.log(DEBUG,"doGet({0},ex)",path);
+
+		// legacy download links: redirect to new api
+		if ("files/download".equals(path.toString())) {
+			var file = queryParam(ex).get("file");
+			var target = "/api/files/"+file;
+			return sendRedirect(ex,target);
+		}
+
 		// we always need to load the index.html first, when we encounter something like /module/entry/4/view
 		// the index page itself references required elements with absolute path: /assets/index-x.js
 		var first = path.isEmpty() ? null : path.firstElement();