BookStack/app/Uploads/Controllers/DrawioImageController.php
Dan Brown b2d48d9a7f
Images: Rolled out image memory handling to image actions
- Moved thumnbail loading out of repo into ImageResizer.
- Updated gallery and editor image handling to show errors where
  possible to indicate memory issues for resizing/thumbs.
- Updated gallery to load image data in a per-image basis via edit form
  for more resiliant thumb/data fetching. Data was previously provided
  via gallery listing, which could be affected by failing generation
  of other images.
- Updated image manager double click handling to be more pleasant and
  not flash away the edit form.
- Updated editor handlers to use main URL when thumbs fail to load.
2023-10-01 13:05:18 +01:00

98 lines
2.9 KiB
PHP

<?php
namespace BookStack\Uploads\Controllers;
use BookStack\Exceptions\ImageUploadException;
use BookStack\Http\Controller;
use BookStack\Uploads\ImageRepo;
use BookStack\Uploads\ImageResizer;
use BookStack\Util\OutOfMemoryHandler;
use Exception;
use Illuminate\Http\Request;
class DrawioImageController extends Controller
{
public function __construct(
protected ImageRepo $imageRepo
) {
}
/**
* Get a list of gallery images, in a list.
* Can be paged and filtered by entity.
*/
public function list(Request $request, ImageResizer $resizer)
{
$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);
$viewData = [
'warning' => '',
'images' => $imgData['images'],
'hasMore' => $imgData['has_more'],
];
new OutOfMemoryHandler(function () use ($viewData) {
$viewData['warning'] = trans('errors.image_gallery_thumbnail_memory_limit');
return response()->view('pages.parts.image-manager-list', $viewData, 200);
});
$resizer->loadGalleryThumbnailsForMany($imgData['images']);
return view('pages.parts.image-manager-list', $viewData);
}
/**
* 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),
]);
}
}