Played around with a new app structure

app/Uploads/Controllers/ImageGalleryApiController.php

@@ -0,0 +1,147 @@
+<?php
+
+namespace BookStack\Uploads\Controllers;
+
+use BookStack\Entities\Models\Page;
+use BookStack\Http\Controllers\ApiController;
+use BookStack\Uploads\Image;
+use BookStack\Uploads\ImageRepo;
+use Illuminate\Http\Request;
+
+class ImageGalleryApiController extends ApiController
+{
+    protected array $fieldsToExpose = [
+        'id', 'name', 'url', 'path', 'type', 'uploaded_to', 'created_by', 'updated_by',  'created_at', 'updated_at',
+    ];
+
+    public function __construct(
+        protected ImageRepo $imageRepo
+    ) {
+    }
+
+    protected function rules(): array
+    {
+        return [
+            'create' => [
+                'type'  => ['required', 'string', 'in:gallery,drawio'],
+                'uploaded_to' => ['required', 'integer'],
+                'image' => ['required', 'file', ...$this->getImageValidationRules()],
+                'name'  => ['string', 'max:180'],
+            ],
+            'update' => [
+                'name'  => ['string', 'max:180'],
+            ]
+        ];
+    }
+
+    /**
+     * Get a listing of images in the system. Includes gallery (page content) images and drawings.
+     * Requires visibility of the page they're originally uploaded to.
+     */
+    public function list()
+    {
+        $images = Image::query()->scopes(['visible'])
+            ->select($this->fieldsToExpose)
+            ->whereIn('type', ['gallery', 'drawio']);
+
+        return $this->apiListingResponse($images, [
+            ...$this->fieldsToExpose
+        ]);
+    }
+
+    /**
+     * Create a new image in the system.
+     * Since "image" is expected to be a file, this needs to be a 'multipart/form-data' type request.
+     * The provided "uploaded_to" should be an existing page ID in the system.
+     * If the "name" parameter is omitted, the filename of the provided image file will be used instead.
+     * The "type" parameter should be 'gallery' for page content images, and 'drawio' should only be used
+     * when the file is a PNG file with diagrams.net image data embedded within.
+     */
+    public function create(Request $request)
+    {
+        $this->checkPermission('image-create-all');
+        $data = $this->validate($request, $this->rules()['create']);
+        Page::visible()->findOrFail($data['uploaded_to']);
+
+        $image = $this->imageRepo->saveNew($data['image'], $data['type'], $data['uploaded_to']);
+
+        if (isset($data['name'])) {
+            $image->refresh();
+            $image->update(['name' => $data['name']]);
+        }
+
+        return response()->json($this->formatForSingleResponse($image));
+    }
+
+    /**
+     * View the details of a single image.
+     * The "thumbs" response property contains links to scaled variants that BookStack may use in its UI.
+     * The "content" response property provides HTML and Markdown content, in the format that BookStack
+     * would typically use by default to add the image in page content, as a convenience.
+     * Actual image file data is not provided but can be fetched via the "url" response property.
+     */
+    public function read(string $id)
+    {
+        $image = Image::query()->scopes(['visible'])->findOrFail($id);
+
+        return response()->json($this->formatForSingleResponse($image));
+    }
+
+    /**
+     * Update the details of an existing image in the system.
+     * Only allows updating of the image name at this time.
+     */
+    public function update(Request $request, string $id)
+    {
+        $data = $this->validate($request, $this->rules()['update']);
+        $image = $this->imageRepo->getById($id);
+        $this->checkOwnablePermission('page-view', $image->getPage());
+        $this->checkOwnablePermission('image-update', $image);
+
+        $this->imageRepo->updateImageDetails($image, $data);
+
+        return response()->json($this->formatForSingleResponse($image));
+    }
+
+    /**
+     * Delete an image from the system.
+     * Will also delete thumbnails for the image.
+     * Does not check or handle image usage so this could leave pages with broken image references.
+     */
+    public function delete(string $id)
+    {
+        $image = $this->imageRepo->getById($id);
+        $this->checkOwnablePermission('page-view', $image->getPage());
+        $this->checkOwnablePermission('image-delete', $image);
+        $this->imageRepo->destroyImage($image);
+
+        return response('', 204);
+    }
+
+    /**
+     * Format the given image model for single-result display.
+     */
+    protected function formatForSingleResponse(Image $image): array
+    {
+        $this->imageRepo->loadThumbs($image);
+        $data = $image->getAttributes();
+        $data['created_by'] = $image->createdBy;
+        $data['updated_by'] = $image->updatedBy;
+        $data['content'] = [];
+
+        $escapedUrl = htmlentities($image->url);
+        $escapedName = htmlentities($image->name);
+        if ($image->type === 'drawio') {
+            $data['content']['html'] = "<div drawio-diagram=\"{$image->id}\"><img src=\"{$escapedUrl}\"></div>";
+            $data['content']['markdown'] = $data['content']['html'];
+        } else {
+            $escapedDisplayThumb = htmlentities($image->thumbs['display']);
+            $data['content']['html'] = "<a href=\"{$escapedUrl}\" target=\"_blank\"><img src=\"{$escapedDisplayThumb}\" alt=\"{$escapedName}\"></a>";
+            $mdEscapedName = str_replace(']', '', str_replace('[', '', $image->name));
+            $mdEscapedThumb = str_replace(']', '', str_replace('[', '', $image->thumbs['display']));
+            $data['content']['markdown'] = "![{$mdEscapedName}]({$mdEscapedThumb})";
+        }
+
+        return $data;
+    }
+}