[TASK] Use UrlFactory for query generation in AjaxRequest

Switching the implementations here because InputTransformer
decodes properly encoded query arguments.

Resolves: #108052
Related: #107475
Releases: main
Change-Id: Ice2256db1260b90844d3efa812d0cd7d99aa33ce
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/91548
Reviewed-by: Garvin Hicking <garvin@hick.ing>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Benjamin Franzke <ben@bnf.dev>
Tested-by: Benjamin Franzke <ben@bnf.dev>
Tested-by: Garvin Hicking <garvin@hick.ing>

Author: pixeldesu

Build/Sources/TypeScript/backend/form-engine-link-browser-adapter.ts

@@ -72,13 +72,9 @@ export default (function() {
       const attributeValues = LinkBrowser.getLinkAttributeValues();
       // encode link on server
       attributeValues.url = input;
-      const searchParams = new URLSearchParams();
-      for (const [key, value] of Object.entries(attributeValues)) {
-        searchParams.set(key, value);
-      }
 
       (new AjaxRequest(TYPO3.settings.ajaxUrls.link_browser_encodetypolink))
-        .withQueryArguments(searchParams)
+        .withQueryArguments(attributeValues)
         .get()
         .then(async (response: AjaxResponse): Promise<void> => {
           const data: Response = await response.resolve();

Build/Sources/TypeScript/core/ajax/ajax-request.ts

@@ -14,6 +14,7 @@
 import { AjaxResponse } from '@typo3/core/ajax/ajax-response';
 import { InputTransformer, type GenericKeyValue } from './input-transformer';
 import type { RequestMiddleware, RequestHandler } from '@typo3/core/ajax/ajax-request-types';
+import { UrlFactory } from '@typo3/core/factory/url-factory';
 
 /**
  * @example send data as `Content-Type: multipart/form-data` (default)
@@ -54,8 +55,10 @@ class AjaxRequest {
   public withQueryArguments(data: string | Array<string> | GenericKeyValue | URLSearchParams): AjaxRequest {
     const clone = this.clone();
 
-    if (!(data instanceof URLSearchParams)) {
-      data = new URLSearchParams(InputTransformer.toSearchParams(data));
+    if (Array.isArray(data)) {
+      data = new URLSearchParams(data.join('&'));
+    } else if (!(data instanceof URLSearchParams)) {
+      data = UrlFactory.createSearchParams(data);
     }
     for (const [key, value] of data.entries()) {
       this.url.searchParams.append(key, value);