-<?php namespace BookStack\Uploads;
+<?php
+namespace BookStack\Uploads;
+
+use BookStack\Entities\Queries\EntityQueries;
use BookStack\Exceptions\ImageUploadException;
-use DB;
-use ErrorException;
use Exception;
-use Illuminate\Contracts\Cache\Repository as Cache;
-use Illuminate\Contracts\Filesystem\Factory as FileSystem;
-use Illuminate\Contracts\Filesystem\Filesystem as FileSystemInstance;
-use Illuminate\Contracts\Filesystem\FileNotFoundException;
-use Illuminate\Contracts\Filesystem\Filesystem as Storage;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Log;
use Illuminate\Support\Str;
-use Intervention\Image\Exception\NotSupportedException;
-use Intervention\Image\ImageManager;
use Symfony\Component\HttpFoundation\File\UploadedFile;
+use Symfony\Component\HttpFoundation\StreamedResponse;
class ImageService
{
- protected $imageTool;
- protected $cache;
- protected $storageUrl;
- protected $image;
- protected $fileSystem;
-
- /**
- * ImageService constructor.
- */
- public function __construct(Image $image, ImageManager $imageTool, FileSystem $fileSystem, Cache $cache)
- {
- $this->image = $image;
- $this->imageTool = $imageTool;
- $this->fileSystem = $fileSystem;
- $this->cache = $cache;
- }
+ protected static array $supportedExtensions = ['jpg', 'jpeg', 'png', 'gif', 'webp', 'avif'];
- /**
- * Get the storage that will be used for storing images.
- */
- protected function getStorage(string $type = ''): FileSystemInstance
- {
- $storageType = config('filesystems.images');
-
- // Ensure system images (App logo) are uploaded to a public space
- if ($type === 'system' && $storageType === 'local_secure') {
- $storageType = 'local';
- }
-
- return $this->fileSystem->disk($storageType);
+ public function __construct(
+ protected ImageStorage $storage,
+ protected ImageResizer $resizer,
+ protected EntityQueries $queries,
+ ) {
}
/**
* Saves a new image from an upload.
- * @return mixed
+ *
* @throws ImageUploadException
*/
public function saveNewFromUpload(
UploadedFile $uploadedFile,
string $type,
int $uploadedTo = 0,
- int $resizeWidth = null,
- int $resizeHeight = null,
- bool $keepRatio = true
- ) {
- $imageName = $uploadedFile->getClientOriginalName();
+ ?int $resizeWidth = null,
+ ?int $resizeHeight = null,
+ bool $keepRatio = true,
+ string $imageName = '',
+ ): Image {
+ $imageName = $imageName ?: $uploadedFile->getClientOriginalName();
$imageData = file_get_contents($uploadedFile->getRealPath());
if ($resizeWidth !== null || $resizeHeight !== null) {
- $imageData = $this->resizeImage($imageData, $resizeWidth, $resizeHeight, $keepRatio);
+ $imageData = $this->resizer->resizeImageData($imageData, $resizeWidth, $resizeHeight, $keepRatio);
}
return $this->saveNew($imageName, $imageData, $type, $uploadedTo);
/**
* Save a new image from a uri-encoded base64 string of data.
+ *
* @throws ImageUploadException
*/
public function saveNewFromBase64Uri(string $base64Uri, string $name, string $type, int $uploadedTo = 0): Image
{
$splitData = explode(';base64,', $base64Uri);
if (count($splitData) < 2) {
- throw new ImageUploadException("Invalid base64 image data provided");
+ throw new ImageUploadException('Invalid base64 image data provided');
}
$data = base64_decode($splitData[1]);
+
return $this->saveNew($name, $data, $type, $uploadedTo);
}
/**
* Save a new image into storage.
+ *
* @throws ImageUploadException
*/
public function saveNew(string $imageName, string $imageData, string $type, int $uploadedTo = 0): Image
{
- $storage = $this->getStorage($type);
+ $disk = $this->storage->getDisk($type);
$secureUploads = setting('app-secure-images');
- $fileName = $this->cleanImageFileName($imageName);
+ $fileName = $this->storage->cleanImageFileName($imageName);
- $imagePath = '/uploads/images/' . $type . '/' . Date('Y-m') . '/';
+ $imagePath = '/uploads/images/' . $type . '/' . date('Y-m') . '/';
- while ($storage->exists($imagePath . $fileName)) {
+ while ($disk->exists($imagePath . $fileName)) {
$fileName = Str::random(3) . $fileName;
}
}
try {
- $this->saveImageDataInPublicSpace($storage, $fullPath, $imageData);
+ $disk->put($fullPath, $imageData, true);
} catch (Exception $e) {
- \Log::error('Error when attempting image upload:' . $e->getMessage());
+ Log::error('Error when attempting image upload:' . $e->getMessage());
+
throw new ImageUploadException(trans('errors.path_not_writable', ['filePath' => $fullPath]));
}
$imageDetails = [
- 'name' => $imageName,
- 'path' => $fullPath,
- 'url' => $this->getPublicUrl($fullPath),
- 'type' => $type,
- 'uploaded_to' => $uploadedTo
+ 'name' => $imageName,
+ 'path' => $fullPath,
+ 'url' => $this->storage->getPublicUrl($fullPath),
+ 'type' => $type,
+ 'uploaded_to' => $uploadedTo,
];
if (user()->id !== 0) {
$imageDetails['updated_by'] = $userId;
}
- $image = $this->image->newInstance();
- $image->forceFill($imageDetails)->save();
- return $image;
- }
-
- /**
- * Save image data for the given path in the public space, if possible,
- * for the provided storage mechanism.
- */
- protected function saveImageDataInPublicSpace(Storage $storage, string $path, string $data)
- {
- $storage->put($path, $data);
-
- // Set visibility when a non-AWS-s3, s3-like storage option is in use.
- // Done since this call can break s3-like services but desired for other image stores.
- // Attempting to set ACL during above put request requires different permissions
- // hence would technically be a breaking change for actual s3 usage.
- $usingS3 = strtolower(config('filesystems.images')) === 's3';
- $usingS3Like = $usingS3 && !is_null(config('filesystems.disks.s3.endpoint'));
- if (!$usingS3Like) {
- $storage->setVisibility($path, 'public');
- }
- }
-
- /**
- * Clean up an image file name to be both URL and storage safe.
- */
- protected function cleanImageFileName(string $name): string
- {
- $name = str_replace(' ', '-', $name);
- $nameParts = explode('.', $name);
- $extension = array_pop($nameParts);
- $name = implode('-', $nameParts);
- $name = Str::slug($name);
-
- if (strlen($name) === 0) {
- $name = Str::random(10);
- }
+ $image = (new Image())->forceFill($imageDetails);
+ $image->save();
- return $name . '.' . $extension;
+ return $image;
}
/**
- * Checks if the image is a gif. Returns true if it is, else false.
+ * Replace an existing image file in the system using the given file.
*/
- protected function isGif(Image $image): bool
+ public function replaceExistingFromUpload(string $path, string $type, UploadedFile $file): void
{
- return strtolower(pathinfo($image->path, PATHINFO_EXTENSION)) === 'gif';
+ $imageData = file_get_contents($file->getRealPath());
+ $disk = $this->storage->getDisk($type);
+ $disk->put($path, $imageData);
}
/**
- * Get the thumbnail for an image.
- * If $keepRatio is true only the width will be used.
- * Checks the cache then storage to avoid creating / accessing the filesystem on every check.
- * @param Image $image
- * @param int $width
- * @param int $height
- * @param bool $keepRatio
- * @return string
+ * Get the raw data content from an image.
+ *
* @throws Exception
- * @throws ImageUploadException
*/
- public function getThumbnail(Image $image, $width = 220, $height = 220, $keepRatio = false)
+ public function getImageData(Image $image): string
{
- if ($keepRatio && $this->isGif($image)) {
- return $this->getPublicUrl($image->path);
- }
-
- $thumbDirName = '/' . ($keepRatio ? 'scaled-' : 'thumbs-') . $width . '-' . $height . '/';
- $imagePath = $image->path;
- $thumbFilePath = dirname($imagePath) . $thumbDirName . basename($imagePath);
-
- if ($this->cache->has('images-' . $image->id . '-' . $thumbFilePath) && $this->cache->get('images-' . $thumbFilePath)) {
- return $this->getPublicUrl($thumbFilePath);
- }
-
- $storage = $this->getStorage($image->type);
- if ($storage->exists($thumbFilePath)) {
- return $this->getPublicUrl($thumbFilePath);
- }
-
- $thumbData = $this->resizeImage($storage->get($imagePath), $width, $height, $keepRatio);
+ $disk = $this->storage->getDisk();
- $this->saveImageDataInPublicSpace($storage, $thumbFilePath, $thumbData);
- $this->cache->put('images-' . $image->id . '-' . $thumbFilePath, $thumbFilePath, 60 * 60 * 72);
-
-
- return $this->getPublicUrl($thumbFilePath);
- }
-
- /**
- * Resize image data.
- * @param string $imageData
- * @param int $width
- * @param int $height
- * @param bool $keepRatio
- * @return string
- * @throws ImageUploadException
- */
- protected function resizeImage(string $imageData, $width = 220, $height = null, bool $keepRatio = true)
- {
- try {
- $thumb = $this->imageTool->make($imageData);
- } catch (Exception $e) {
- if ($e instanceof ErrorException || $e instanceof NotSupportedException) {
- throw new ImageUploadException(trans('errors.cannot_create_thumbs'));
- }
- throw $e;
- }
-
- if ($keepRatio) {
- $thumb->resize($width, $height, function ($constraint) {
- $constraint->aspectRatio();
- $constraint->upsize();
- });
- } else {
- $thumb->fit($width, $height);
- }
-
- $thumbData = (string)$thumb->encode();
-
- // Use original image data if we're keeping the ratio
- // and the resizing does not save any space.
- if ($keepRatio && strlen($thumbData) > strlen($imageData)) {
- return $imageData;
- }
-
- return $thumbData;
+ return $disk->get($image->path);
}
/**
* Get the raw data content from an image.
- * @throws FileNotFoundException
+ *
+ * @throws Exception
+ * @returns ?resource
*/
- public function getImageData(Image $image): string
+ public function getImageStream(Image $image): mixed
{
- $imagePath = $image->path;
- $storage = $this->getStorage();
- return $storage->get($imagePath);
+ $disk = $this->storage->getDisk();
+
+ return $disk->stream($image->path);
}
/**
* Destroy an image along with its revisions, thumbnails and remaining folders.
+ *
* @throws Exception
*/
- public function destroy(Image $image)
+ public function destroy(Image $image): void
{
- $this->destroyImagesFromPath($image->path);
+ $this->destroyFileAtPath($image->type, $image->path);
$image->delete();
}
/**
- * Destroys an image at the given path.
- * Searches for image thumbnails in addition to main provided path.
+ * Destroy the underlying image file at the given path.
*/
- protected function destroyImagesFromPath(string $path): bool
+ public function destroyFileAtPath(string $type, string $path): void
{
- $storage = $this->getStorage();
-
- $imageFolder = dirname($path);
- $imageFileName = basename($path);
- $allImages = collect($storage->allFiles($imageFolder));
-
- // Delete image files
- $imagesToDelete = $allImages->filter(function ($imagePath) use ($imageFileName) {
- return basename($imagePath) === $imageFileName;
- });
- $storage->delete($imagesToDelete->all());
-
- // Cleanup of empty folders
- $foldersInvolved = array_merge([$imageFolder], $storage->directories($imageFolder));
- foreach ($foldersInvolved as $directory) {
- if ($this->isFolderEmpty($storage, $directory)) {
- $storage->deleteDirectory($directory);
- }
- }
-
- return true;
- }
-
- /**
- * Check whether or not a folder is empty.
- */
- protected function isFolderEmpty(FileSystemInstance $storage, string $path): bool
- {
- $files = $storage->files($path);
- $folders = $storage->directories($path);
- return (count($files) === 0 && count($folders) === 0);
+ $disk = $this->storage->getDisk($type);
+ $disk->destroyAllMatchingNameFromPath($path);
}
/**
*
* Returns the path of the images that would be/have been deleted.
*/
- public function deleteUnusedImages(bool $checkRevisions = true, bool $dryRun = true)
+ public function deleteUnusedImages(bool $checkRevisions = true, bool $dryRun = true): array
{
$types = ['gallery', 'drawio'];
$deletedPaths = [];
- $this->image->newQuery()->whereIn('type', $types)
+ Image::query()->whereIn('type', $types)
->chunk(1000, function ($images) use ($checkRevisions, &$deletedPaths, $dryRun) {
+ /** @var Image $image */
foreach ($images as $image) {
$searchQuery = '%' . basename($image->path) . '%';
$inPage = DB::table('pages')
}
}
});
+
return $deletedPaths;
}
/**
- * Convert a image URI to a Base64 encoded string.
+ * Convert an image URI to a Base64 encoded string.
* Attempts to convert the URL to a system storage url then
* fetch the data from the disk or storage location.
* Returns null if the image data cannot be fetched from storage.
- * @throws FileNotFoundException
*/
- public function imageUriToBase64(string $uri): ?string
+ public function imageUrlToBase64(string $url): ?string
{
- $storagePath = $this->imageUrlToStoragePath($uri);
- if (empty($uri) || is_null($storagePath)) {
+ $storagePath = $this->storage->urlToPath($url);
+ if (empty($url) || is_null($storagePath)) {
return null;
}
- $storage = $this->getStorage();
+ // Apply access control when local_secure_restricted images are active
+ if ($this->storage->usingSecureRestrictedImages()) {
+ if (!$this->checkUserHasAccessToRelationOfImageAtPath($storagePath)) {
+ return null;
+ }
+ }
+
+ $disk = $this->storage->getDisk();
$imageData = null;
- if ($storage->exists($storagePath)) {
- $imageData = $storage->get($storagePath);
+ if ($disk->exists($storagePath)) {
+ $imageData = $disk->get($storagePath);
}
if (is_null($imageData)) {
return null;
}
- $extension = pathinfo($uri, PATHINFO_EXTENSION);
+ $extension = pathinfo($url, PATHINFO_EXTENSION);
if ($extension === 'svg') {
$extension = 'svg+xml';
}
}
/**
- * Get a storage path for the given image URL.
- * Ensures the path will start with "uploads/images".
- * Returns null if the url cannot be resolved to a local URL.
+ * Check if the given path exists and is accessible in the local secure image system.
+ * Returns false if local_secure is not in use, if the file does not exist, if the
+ * file is likely not a valid image, or if permission does not allow access.
*/
- private function imageUrlToStoragePath(string $url): ?string
+ public function pathAccessibleInLocalSecure(string $imagePath): bool
{
- $url = ltrim(trim($url), '/');
+ $disk = $this->storage->getDisk('gallery');
- // Handle potential relative paths
- $isRelative = strpos($url, 'http') !== 0;
- if ($isRelative) {
- if (strpos(strtolower($url), 'uploads/images') === 0) {
- return trim($url, '/');
- }
- return null;
+ if ($this->storage->usingSecureRestrictedImages() && !$this->checkUserHasAccessToRelationOfImageAtPath($imagePath)) {
+ return false;
}
- // Handle local images based on paths on the same domain
- $potentialHostPaths = [
- url('uploads/images/'),
- $this->getPublicUrl('/uploads/images/'),
- ];
+ // Check local_secure is active
+ return $disk->usingSecureImages()
+ // Check the image file exists
+ && $disk->exists($imagePath)
+ // Check the file is likely an image file
+ && str_starts_with($disk->mimeType($imagePath), 'image/');
+ }
- foreach ($potentialHostPaths as $potentialBasePath) {
- $potentialBasePath = strtolower($potentialBasePath);
- if (strpos(strtolower($url), $potentialBasePath) === 0) {
- return 'uploads/images/' . trim(substr($url, strlen($potentialBasePath)), '/');
- }
+ /**
+ * Check that the current user has access to the relation
+ * of the image at the given path.
+ */
+ protected function checkUserHasAccessToRelationOfImageAtPath(string $path): bool
+ {
+ if (str_starts_with($path, 'uploads/images/')) {
+ $path = substr($path, 15);
+ }
+
+ // Strip thumbnail element from path if existing
+ $originalPathSplit = array_filter(explode('/', $path), function (string $part) {
+ $resizedDir = (str_starts_with($part, 'thumbs-') || str_starts_with($part, 'scaled-'));
+ $missingExtension = !str_contains($part, '.');
+
+ return !($resizedDir && $missingExtension);
+ });
+
+ // Build a database-format image path and search for the image entry
+ $fullPath = '/uploads/images/' . ltrim(implode('/', $originalPathSplit), '/');
+ $image = Image::query()->where('path', '=', $fullPath)->first();
+
+ if (is_null($image)) {
+ return false;
+ }
+
+ $imageType = $image->type;
+
+ // Allow user or system (logo) images
+ // (No specific relation control but may still have access controlled by auth)
+ if ($imageType === 'user' || $imageType === 'system') {
+ return true;
}
- return null;
+ if ($imageType === 'gallery' || $imageType === 'drawio') {
+ return $this->queries->pages->visibleForList()->where('id', '=', $image->uploaded_to)->exists();
+ }
+
+ if ($imageType === 'cover_book') {
+ return $this->queries->books->visibleForList()->where('id', '=', $image->uploaded_to)->exists();
+ }
+
+ if ($imageType === 'cover_bookshelf') {
+ return $this->queries->shelves->visibleForList()->where('id', '=', $image->uploaded_to)->exists();
+ }
+
+ return false;
}
/**
- * Gets a public facing url for an image by checking relevant environment variables.
- * If s3-style store is in use it will default to guessing a public bucket URL.
+ * For the given path, if existing, provide a response that will stream the image contents.
*/
- private function getPublicUrl(string $filePath): string
+ public function streamImageFromStorageResponse(string $imageType, string $path): StreamedResponse
{
- if ($this->storageUrl === null) {
- $storageUrl = config('filesystems.url');
-
- // Get the standard public s3 url if s3 is set as storage type
- // Uses the nice, short URL if bucket name has no periods in otherwise the longer
- // region-based url will be used to prevent http issues.
- if ($storageUrl == false && config('filesystems.images') === 's3') {
- $storageDetails = config('filesystems.disks.s3');
- if (strpos($storageDetails['bucket'], '.') === false) {
- $storageUrl = 'https://' . $storageDetails['bucket'] . '.s3.amazonaws.com';
- } else {
- $storageUrl = 'https://s3-' . $storageDetails['region'] . '.amazonaws.com/' . $storageDetails['bucket'];
- }
- }
- $this->storageUrl = $storageUrl;
- }
+ $disk = $this->storage->getDisk($imageType);
+
+ return $disk->response($path);
+ }
- $basePath = ($this->storageUrl == false) ? url('/') : $this->storageUrl;
- return rtrim($basePath, '/') . $filePath;
+ /**
+ * Check if the given image extension is supported by BookStack.
+ * The extension must not be altered in this function. This check should provide a guarantee
+ * that the provided extension is safe to use for the image to be saved.
+ */
+ public static function isExtensionSupported(string $extension): bool
+ {
+ return in_array($extension, static::$supportedExtensions);
}
}
projects / bookstack / blobdiff