BookStack Code Mirror - bookstack/blob - app/Uploads/Controllers/DrawioImageController.php

   1 <?php
   2
   3 namespace BookStack\Uploads\Controllers;
   4
   5 use BookStack\Exceptions\ImageUploadException;
   6 use BookStack\Http\Controller;
   7 use BookStack\Uploads\ImageRepo;
   8 use BookStack\Uploads\ImageResizer;
   9 use BookStack\Util\OutOfMemoryHandler;
  10 use Exception;
  11 use Illuminate\Http\Request;
  12
  13 class DrawioImageController extends Controller
  14 {
  15     public function __construct(
  16         protected ImageRepo $imageRepo
  17     ) {
  18     }
  19
  20     /**
  21      * Get a list of gallery images, in a list.
  22      * Can be paged and filtered by entity.
  23      */
  24     public function list(Request $request, ImageResizer $resizer)
  25     {
  26         $page = $request->get('page', 1);
  27         $searchTerm = $request->get('search', null);
  28         $uploadedToFilter = $request->get('uploaded_to', null);
  29         $parentTypeFilter = $request->get('filter_type', null);
  30
  31         $imgData = $this->imageRepo->getEntityFiltered('drawio', $parentTypeFilter, $page, 24, $uploadedToFilter, $searchTerm);
  32         $viewData = [
  33             'warning' => '',
  34             'images'  => $imgData['images'],
  35             'hasMore' => $imgData['has_more'],
  36         ];
  37
  38         new OutOfMemoryHandler(function () use ($viewData) {
  39             $viewData['warning'] = trans('errors.image_gallery_thumbnail_memory_limit');
  40             return response()->view('pages.parts.image-manager-list', $viewData, 200);
  41         });
  42
  43         $resizer->loadGalleryThumbnailsForMany($imgData['images']);
  44
  45         return view('pages.parts.image-manager-list', $viewData);
  46     }
  47
  48     /**
  49      * Store a new gallery image in the system.
  50      *
  51      * @throws Exception
  52      */
  53     public function create(Request $request)
  54     {
  55         $this->validate($request, [
  56             'image'       => ['required', 'string'],
  57             'uploaded_to' => ['required', 'integer'],
  58         ]);
  59
  60         $this->checkPermission('image-create-all');
  61         $imageBase64Data = $request->get('image');
  62
  63         try {
  64             $uploadedTo = $request->get('uploaded_to', 0);
  65             $image = $this->imageRepo->saveDrawing($imageBase64Data, $uploadedTo);
  66         } catch (ImageUploadException $e) {
  67             return response($e->getMessage(), 500);
  68         }
  69
  70         return response()->json($image);
  71     }
  72
  73     /**
  74      * Get the content of an image based64 encoded.
  75      */
  76     public function getAsBase64($id)
  77     {
  78         try {
  79             $image = $this->imageRepo->getById($id);
  80         } catch (Exception $exception) {
  81             return $this->jsonError(trans('errors.drawing_data_not_found'), 404);
  82         }
  83
  84         if ($image->type !== 'drawio' || !userCan('page-view', $image->getPage())) {
  85             return $this->jsonError(trans('errors.drawing_data_not_found'), 404);
  86         }
  87
  88         $imageData = $this->imageRepo->getImageData($image);
  89         if (is_null($imageData)) {
  90             return $this->jsonError(trans('errors.drawing_data_not_found'), 404);
  91         }
  92
  93         return response()->json([
  94             'content' => base64_encode($imageData),
  95         ]);
  96     }
  97 }