Played around with a new app structure

app/Uploads/Controllers/DrawioImageController.php

@@ -0,0 +1,88 @@
+<?php
+
+namespace BookStack\Uploads\Controllers;
+
+use BookStack\Exceptions\ImageUploadException;
+use BookStack\Http\Controllers\Controller;
+use BookStack\Uploads\ImageRepo;
+use Exception;
+use Illuminate\Http\Request;
+
+class DrawioImageController extends Controller
+{
+    protected $imageRepo;
+
+    public function __construct(ImageRepo $imageRepo)
+    {
+        $this->imageRepo = $imageRepo;
+    }
+
+    /**
+     * Get a list of gallery images, in a list.
+     * Can be paged and filtered by entity.
+     */
+    public function list(Request $request)
+    {
+        $page = $request->get('page', 1);
+        $searchTerm = $request->get('search', null);
+        $uploadedToFilter = $request->get('uploaded_to', null);
+        $parentTypeFilter = $request->get('filter_type', null);
+
+        $imgData = $this->imageRepo->getEntityFiltered('drawio', $parentTypeFilter, $page, 24, $uploadedToFilter, $searchTerm);
+
+        return view('pages.parts.image-manager-list', [
+            'images'  => $imgData['images'],
+            'hasMore' => $imgData['has_more'],
+        ]);
+    }
+
+    /**
+     * Store a new gallery image in the system.
+     *
+     * @throws Exception
+     */
+    public function create(Request $request)
+    {
+        $this->validate($request, [
+            'image'       => ['required', 'string'],
+            'uploaded_to' => ['required', 'integer'],
+        ]);
+
+        $this->checkPermission('image-create-all');
+        $imageBase64Data = $request->get('image');
+
+        try {
+            $uploadedTo = $request->get('uploaded_to', 0);
+            $image = $this->imageRepo->saveDrawing($imageBase64Data, $uploadedTo);
+        } catch (ImageUploadException $e) {
+            return response($e->getMessage(), 500);
+        }
+
+        return response()->json($image);
+    }
+
+    /**
+     * Get the content of an image based64 encoded.
+     */
+    public function getAsBase64($id)
+    {
+        try {
+            $image = $this->imageRepo->getById($id);
+        } catch (Exception $exception) {
+            return $this->jsonError(trans('errors.drawing_data_not_found'), 404);
+        }
+
+        if ($image->type !== 'drawio' || !userCan('page-view', $image->getPage())) {
+            return $this->jsonError(trans('errors.drawing_data_not_found'), 404);
+        }
+
+        $imageData = $this->imageRepo->getImageData($image);
+        if (is_null($imageData)) {
+            return $this->jsonError(trans('errors.drawing_data_not_found'), 404);
+        }
+
+        return response()->json([
+            'content' => base64_encode($imageData),
+        ]);
+    }
+}