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\Permissions\Permission;
   8 use BookStack\Uploads\ImageRepo;
   9 use BookStack\Uploads\ImageResizer;
  10 use BookStack\Util\OutOfMemoryHandler;
  11 use Exception;
  12 use Illuminate\Http\Request;
  13
  14 class DrawioImageController extends Controller
  15 {
  16     public function __construct(
  17         protected ImageRepo $imageRepo
  18     ) {
  19     }
  20
  21     /**
  22      * Get a list of gallery images, in a list.
  23      * Can be paged and filtered by entity.
  24      */
  25     public function list(Request $request, ImageResizer $resizer)
  26     {
  27         $page = $request->get('page', 1);
  28         $searchTerm = $request->get('search', null);
  29         $uploadedToFilter = $request->get('uploaded_to', null);
  30         $parentTypeFilter = $request->get('filter_type', null);
  31
  32         $imgData = $this->imageRepo->getEntityFiltered('drawio', $parentTypeFilter, $page, 24, $uploadedToFilter, $searchTerm);
  33         $viewData = [
  34             'warning' => '',
  35             'images'  => $imgData['images'],
  36             'hasMore' => $imgData['has_more'],
  37         ];
  38
  39         new OutOfMemoryHandler(function () use ($viewData) {
  40             $viewData['warning'] = trans('errors.image_gallery_thumbnail_memory_limit');
  41             return response()->view('pages.parts.image-manager-list', $viewData, 200);
  42         });
  43
  44         $resizer->loadGalleryThumbnailsForMany($imgData['images']);
  45
  46         return view('pages.parts.image-manager-list', $viewData);
  47     }
  48
  49     /**
  50      * Store a new gallery image in the system.
  51      *
  52      * @throws Exception
  53      */
  54     public function create(Request $request)
  55     {
  56         $this->validate($request, [
  57             'image'       => ['required', 'string'],
  58             'uploaded_to' => ['required', 'integer'],
  59         ]);
  60
  61         $this->checkPermission(Permission::ImageCreateAll);
  62         $imageBase64Data = $request->get('image');
  63
  64         try {
  65             $uploadedTo = $request->get('uploaded_to', 0);
  66             $image = $this->imageRepo->saveDrawing($imageBase64Data, $uploadedTo);
  67         } catch (ImageUploadException $e) {
  68             return response($e->getMessage(), 500);
  69         }
  70
  71         return response()->json($image);
  72     }
  73
  74     /**
  75      * Get the content of an image based64 encoded.
  76      */
  77     public function getAsBase64($id)
  78     {
  79         try {
  80             $image = $this->imageRepo->getById($id);
  81         } catch (Exception $exception) {
  82             return $this->jsonError(trans('errors.drawing_data_not_found'), 404);
  83         }
  84
  85         if ($image->type !== 'drawio' || !userCan('page-view', $image->getPage())) {
  86             return $this->jsonError(trans('errors.drawing_data_not_found'), 404);
  87         }
  88
  89         $imageData = $this->imageRepo->getImageData($image);
  90         if (is_null($imageData)) {
  91             return $this->jsonError(trans('errors.drawing_data_not_found'), 404);
  92         }
  93
  94         return response()->json([
  95             'content' => base64_encode($imageData),
  96         ]);
  97     }
  98 }