Add prev and next button to navigate through different pages

[bookstack] / app / Uploads / ImageService.php

diff --git a/app/Uploads/ImageService.php b/app/Uploads/ImageService.php
index 8eefbaf9dd3468521d388addb292c7285ffd9b16..92c3994a71e0386a792951dac75b6ad5542b9ec7 100644 (file)
--- a/app/Uploads/ImageService.php
+++ b/app/Uploads/ImageService.php
@@ -1,53 +1,45 @@
 <?php namespace BookStack\Uploads;
 
 <?php namespace BookStack\Uploads;
 

-use BookStack\Auth\User;
-use BookStack\Exceptions\HttpFetchException;

 use BookStack\Exceptions\ImageUploadException;
 use DB;
 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 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\Support\Str;

 use Intervention\Image\Exception\NotSupportedException;
 use Intervention\Image\ImageManager;
 use Intervention\Image\Exception\NotSupportedException;
 use Intervention\Image\ImageManager;

-use phpDocumentor\Reflection\Types\Integer;

 use Symfony\Component\HttpFoundation\File\UploadedFile;
 
 use Symfony\Component\HttpFoundation\File\UploadedFile;
 

-class ImageService extends UploadService
+class ImageService

 {
 {

-

     protected $imageTool;
     protected $cache;
     protected $storageUrl;
     protected $image;
     protected $imageTool;
     protected $cache;
     protected $storageUrl;
     protected $image;

-    protected $http;
+    protected $fileSystem;

 
     /**
      * ImageService constructor.
 
     /**
      * ImageService constructor.

-     * @param Image $image
-     * @param ImageManager $imageTool
-     * @param FileSystem $fileSystem
-     * @param Cache $cache
-     * @param HttpFetcher $http

      */
      */

-    public function __construct(Image $image, ImageManager $imageTool, FileSystem $fileSystem, Cache $cache, HttpFetcher $http)
+    public function __construct(Image $image, ImageManager $imageTool, FileSystem $fileSystem, Cache $cache)

     {
         $this->image = $image;
         $this->imageTool = $imageTool;
     {
         $this->image = $image;
         $this->imageTool = $imageTool;

+        $this->fileSystem = $fileSystem;

         $this->cache = $cache;
         $this->cache = $cache;

-        $this->http = $http;
-        parent::__construct($fileSystem);

     }
 
     /**
      * Get the storage that will be used for storing images.
     }
 
     /**
      * Get the storage that will be used for storing images.

-     * @param string $type
-     * @return \Illuminate\Contracts\Filesystem\Filesystem

      */
      */

-    protected function getStorage($type = '')
+    protected function getStorage(string $type = ''): FileSystemInstance

     {
     {

-        $storageType = config('filesystems.default');
+        $storageType = config('filesystems.images');

 
 

-        // Override default location if set to local public to ensure not visible.
+        // Ensure system images (App logo) are uploaded to a public space

         if ($type === 'system' && $storageType === 'local_secure') {
             $storageType = 'local';
         }
         if ($type === 'system' && $storageType === 'local_secure') {
             $storageType = 'local';
         }


@@ -57,12 +49,6 @@ class ImageService extends UploadService
 
     /**
      * Saves a new image from an upload.
 
     /**
      * Saves a new image from an upload.

-     * @param UploadedFile $uploadedFile
-     * @param string $type
-     * @param int $uploadedTo
-     * @param int|null $resizeWidth
-     * @param int|null $resizeHeight
-     * @param bool $keepRatio

      * @return mixed
      * @throws ImageUploadException
      */
      * @return mixed
      * @throws ImageUploadException
      */


@@ -86,14 +72,9 @@ class ImageService extends UploadService
 
     /**
      * Save a new image from a uri-encoded base64 string of data.
 
     /**
      * Save a new image from a uri-encoded base64 string of data.

-     * @param string $base64Uri
-     * @param string $name
-     * @param string $type
-     * @param int $uploadedTo
-     * @return Image

      * @throws ImageUploadException
      */
      * @throws ImageUploadException
      */

-    public function saveNewFromBase64Uri(string $base64Uri, string $name, string $type, $uploadedTo = 0)
+    public function saveNewFromBase64Uri(string $base64Uri, string $name, string $type, int $uploadedTo = 0): Image

     {
         $splitData = explode(';base64,', $base64Uri);
         if (count($splitData) < 2) {
     {
         $splitData = explode(';base64,', $base64Uri);
         if (count($splitData) < 2) {


@@ -104,48 +85,24 @@ class ImageService extends UploadService
     }
 
     /**
     }
 
     /**

-     * Gets an image from url and saves it to the database.
-     * @param             $url
-     * @param string      $type
-     * @param bool|string $imageName
-     * @return mixed
-     * @throws \Exception
-     */
-    private function saveNewFromUrl($url, $type, $imageName = false)
-    {
-        $imageName = $imageName ? $imageName : basename($url);
-        try {
-            $imageData = $this->http->fetch($url);
-        } catch (HttpFetchException $exception) {
-            throw new \Exception(trans('errors.cannot_get_image_from_url', ['url' => $url]));
-        }
-        return $this->saveNew($imageName, $imageData, $type);
-    }
-
-    /**
-     * Saves a new image
-     * @param string $imageName
-     * @param string $imageData
-     * @param string $type
-     * @param int $uploadedTo
-     * @return Image
+     * Save a new image into storage.

      * @throws ImageUploadException
      */
      * @throws ImageUploadException
      */

-    private function saveNew($imageName, $imageData, $type, $uploadedTo = 0)
+    public function saveNew(string $imageName, string $imageData, string $type, int $uploadedTo = 0): Image

     {
         $storage = $this->getStorage($type);
         $secureUploads = setting('app-secure-images');
     {
         $storage = $this->getStorage($type);
         $secureUploads = setting('app-secure-images');

-        $imageName = str_replace(' ', '-', $imageName);
+        $fileName = $this->cleanImageFileName($imageName);

 
         $imagePath = '/uploads/images/' . $type . '/' . Date('Y-m') . '/';
 
 
         $imagePath = '/uploads/images/' . $type . '/' . Date('Y-m') . '/';
 

-        while ($storage->exists($imagePath . $imageName)) {
-            $imageName = str_random(3) . $imageName;
+        while ($storage->exists($imagePath . $fileName)) {
+            $fileName = Str::random(3) . $fileName;

         }
 
         }
 

-        $fullPath = $imagePath . $imageName;
+        $fullPath = $imagePath . $fileName;

         if ($secureUploads) {
         if ($secureUploads) {

-            $fullPath = $imagePath . str_random(16) . '-' . $imageName;
+            $fullPath = $imagePath . Str::random(16) . '-' . $fileName;

         }
 
         try {
         }
 
         try {


@@ -156,10 +113,10 @@ class ImageService extends UploadService
         }
 
         $imageDetails = [
         }
 
         $imageDetails = [

-            'name'       => $imageName,
-            'path'       => $fullPath,
-            'url'        => $this->getPublicUrl($fullPath),
-            'type'       => $type,
+            'name' => $imageName,
+            'path' => $fullPath,
+            'url' => $this->getPublicUrl($fullPath),
+            'type' => $type,

             'uploaded_to' => $uploadedTo
         ];
 
             'uploaded_to' => $uploadedTo
         ];
 


@@ -174,13 +131,28 @@ class ImageService extends UploadService
         return $image;
     }
 
         return $image;
     }
 

+    /**
+     * 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);
+        }
+
+        return $name . '.' . $extension;
+    }

 
     /**
      * Checks if the image is a gif. Returns true if it is, else false.
 
     /**
      * Checks if the image is a gif. Returns true if it is, else false.

-     * @param Image $image
-     * @return boolean

      */
      */

-    protected function isGif(Image $image)
+    protected function isGif(Image $image): bool

     {
         return strtolower(pathinfo($image->path, PATHINFO_EXTENSION)) === 'gif';
     }
     {
         return strtolower(pathinfo($image->path, PATHINFO_EXTENSION)) === 'gif';
     }


@@ -220,7 +192,8 @@ class ImageService extends UploadService
 
         $storage->put($thumbFilePath, $thumbData);
         $storage->setVisibility($thumbFilePath, 'public');
 
         $storage->put($thumbFilePath, $thumbData);
         $storage->setVisibility($thumbFilePath, 'public');

-        $this->cache->put('images-' . $image->id . '-' . $thumbFilePath, $thumbFilePath, 60 * 72);
+        $this->cache->put('images-' . $image->id . '-' . $thumbFilePath, $thumbFilePath, 60 * 60 * 72);
+

 
         return $this->getPublicUrl($thumbFilePath);
     }
 
         return $this->getPublicUrl($thumbFilePath);
     }


@@ -239,7 +212,7 @@ class ImageService extends UploadService
         try {
             $thumb = $this->imageTool->make($imageData);
         } catch (Exception $e) {
         try {
             $thumb = $this->imageTool->make($imageData);
         } catch (Exception $e) {

-            if ($e instanceof \ErrorException || $e instanceof NotSupportedException) {
+            if ($e instanceof ErrorException || $e instanceof NotSupportedException) {

                 throw new ImageUploadException(trans('errors.cannot_create_thumbs'));
             }
             throw $e;
                 throw new ImageUploadException(trans('errors.cannot_create_thumbs'));
             }
             throw $e;


@@ -253,16 +226,23 @@ class ImageService extends UploadService
         } else {
             $thumb->fit($width, $height);
         }
         } else {
             $thumb->fit($width, $height);
         }

-        return (string)$thumb->encode();
+
+        $thumbData = (string)$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;

     }
 
     /**
      * Get the raw data content from an image.
     }
 
     /**
      * Get the raw data content from an image.

-     * @param Image $image
-     * @return string
-     * @throws \Illuminate\Contracts\Filesystem\FileNotFoundException
+     * @throws FileNotFoundException

      */
      */

-    public function getImageData(Image $image)
+    public function getImageData(Image $image): string

     {
         $imagePath = $image->path;
         $storage = $this->getStorage();
     {
         $imagePath = $image->path;
         $storage = $this->getStorage();


@@ -271,7 +251,6 @@ class ImageService extends UploadService
 
     /**
      * Destroy an image along with its revisions, thumbnails and remaining folders.
 
     /**
      * Destroy an image along with its revisions, thumbnails and remaining folders.

-     * @param Image $image

      * @throws Exception
      */
     public function destroy(Image $image)
      * @throws Exception
      */
     public function destroy(Image $image)


@@ -282,11 +261,9 @@ class ImageService extends UploadService
 
     /**
      * Destroys an image at the given path.
 
     /**
      * Destroys an image at the given path.

-     * Searches for image thumbnails in addition to main provided path..
-     * @param string $path
-     * @return bool
+     * Searches for image thumbnails in addition to main provided path.

      */
      */

-    protected function destroyImagesFromPath(string $path)
+    protected function destroyImagesFromPath(string $path): bool

     {
         $storage = $this->getStorage();
 
     {
         $storage = $this->getStorage();
 


@@ -296,15 +273,14 @@ class ImageService extends UploadService
 
         // Delete image files
         $imagesToDelete = $allImages->filter(function ($imagePath) use ($imageFileName) {
 
         // Delete image files
         $imagesToDelete = $allImages->filter(function ($imagePath) use ($imageFileName) {

-            $expectedIndex = strlen($imagePath) - strlen($imageFileName);
-            return strpos($imagePath, $imageFileName) === $expectedIndex;
+            return basename($imagePath) === $imageFileName;

         });
         $storage->delete($imagesToDelete->all());
 
         // Cleanup of empty folders
         $foldersInvolved = array_merge([$imageFolder], $storage->directories($imageFolder));
         foreach ($foldersInvolved as $directory) {
         });
         $storage->delete($imagesToDelete->all());
 
         // Cleanup of empty folders
         $foldersInvolved = array_merge([$imageFolder], $storage->directories($imageFolder));
         foreach ($foldersInvolved as $directory) {

-            if ($this->isFolderEmpty($directory)) {
+            if ($this->isFolderEmpty($storage, $directory)) {

                 $storage->deleteDirectory($directory);
             }
         }
                 $storage->deleteDirectory($directory);
             }
         }


@@ -313,57 +289,13 @@ class ImageService extends UploadService
     }
 
     /**
     }
 
     /**

-     * Save an avatar image from an external service.
-     * @param \BookStack\Auth\User $user
-     * @param int $size
-     * @return Image
-     * @throws Exception
-     */
-    public function saveUserAvatar(User $user, $size = 500)
-    {
-        $avatarUrl = $this->getAvatarUrl();
-        $email = strtolower(trim($user->email));
-
-        $replacements = [
-            '${hash}' => md5($email),
-            '${size}' => $size,
-            '${email}' => urlencode($email),
-        ];
-
-        $userAvatarUrl = strtr($avatarUrl, $replacements);
-        $imageName = str_replace(' ', '-', $user->name . '-avatar.png');
-        $image = $this->saveNewFromUrl($userAvatarUrl, 'user', $imageName);
-        $image->created_by = $user->id;
-        $image->updated_by = $user->id;
-        $image->uploaded_to = $user->id;
-        $image->save();
-
-        return $image;
-    }
-
-    /**
-     * Check if fetching external avatars is enabled.
-     * @return bool
+     * Check whether or not a folder is empty.

      */
      */

-    public function avatarFetchEnabled()
+    protected function isFolderEmpty(FileSystemInstance $storage, string $path): bool

     {
     {

-        $fetchUrl = $this->getAvatarUrl();
-        return is_string($fetchUrl) && strpos($fetchUrl, 'http') === 0;
-    }
-
-    /**
-     * Get the URL to fetch avatars from.
-     * @return string|mixed
-     */
-    protected function getAvatarUrl()
-    {
-        $url = trim(config('services.avatar_url'));
-
-        if (empty($url) && !config('services.disable_services')) {
-            $url = 'https://www.gravatar.com/avatar/${hash}?s=${size}&d=identicon';
-        }
-
-        return $url;
+        $files = $storage->files($path);
+        $folders = $storage->directories($path);
+        return (count($files) === 0 && count($folders) === 0);

     }
 
     /**
     }
 
     /**


@@ -372,26 +304,23 @@ class ImageService extends UploadService
      * Could be much improved to be more specific but kept it generic for now to be safe.
      *
      * Returns the path of the images that would be/have been deleted.
      * Could be much improved to be more specific but kept it generic for now to be safe.
      *
      * Returns the path of the images that would be/have been deleted.

-     * @param bool $checkRevisions
-     * @param bool $dryRun
-     * @param array $types
-     * @return array

      */
      */

-    public function deleteUnusedImages($checkRevisions = true, $dryRun = true, $types = ['gallery', 'drawio'])
+    public function deleteUnusedImages(bool $checkRevisions = true, bool $dryRun = true)

     {
     {

-        $types = array_intersect($types, ['gallery', 'drawio']);
+        $types = ['gallery', 'drawio'];

         $deletedPaths = [];
 
         $this->image->newQuery()->whereIn('type', $types)
         $deletedPaths = [];
 
         $this->image->newQuery()->whereIn('type', $types)

-            ->chunk(1000, function ($images) use ($types, $checkRevisions, &$deletedPaths, $dryRun) {
+            ->chunk(1000, function ($images) use ($checkRevisions, &$deletedPaths, $dryRun) {

                 foreach ($images as $image) {
                     $searchQuery = '%' . basename($image->path) . '%';
                     $inPage = DB::table('pages')
                 foreach ($images as $image) {
                     $searchQuery = '%' . basename($image->path) . '%';
                     $inPage = DB::table('pages')

-                         ->where('html', 'like', $searchQuery)->count() > 0;
+                            ->where('html', 'like', $searchQuery)->count() > 0;
+

                     $inRevision = false;
                     if ($checkRevisions) {
                     $inRevision = false;
                     if ($checkRevisions) {

-                        $inRevision =  DB::table('page_revisions')
-                             ->where('html', 'like', $searchQuery)->count() > 0;
+                        $inRevision = DB::table('page_revisions')
+                                ->where('html', 'like', $searchQuery)->count() > 0;

                     }
 
                     if (!$inPage && !$inRevision) {
                     }
 
                     if (!$inPage && !$inRevision) {


@@ -407,50 +336,75 @@ class ImageService extends UploadService
 
     /**
      * Convert a image URI to a Base64 encoded string.
 
     /**
      * Convert a image URI to a Base64 encoded string.

-     * Attempts to find locally via set storage method first.
-     * @param string $uri
-     * @return null|string
-     * @throws \Illuminate\Contracts\Filesystem\FileNotFoundException
+     * 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)
+    public function imageUriToBase64(string $uri): ?string

     {
     {

-        $isLocal = strpos(trim($uri), 'http') !== 0;
-
-        // Attempt to find local files even if url not absolute
-        $base = baseUrl('/');
-        if (!$isLocal && strpos($uri, $base) === 0) {
-            $isLocal = true;
-            $uri = str_replace($base, '', $uri);
+        $storagePath = $this->imageUrlToStoragePath($uri);
+        if (empty($uri) || is_null($storagePath)) {
+            return null;

         }
 
         }
 

+        $storage = $this->getStorage();

         $imageData = null;
         $imageData = null;

+        if ($storage->exists($storagePath)) {
+            $imageData = $storage->get($storagePath);
+        }

 
 

-        if ($isLocal) {
-            $uri = trim($uri, '/');
-            $storage = $this->getStorage();
-            if ($storage->exists($uri)) {
-                $imageData = $storage->get($uri);
-            }
-        } else {
-            try {
-                $imageData = $this->http->fetch($uri);
-            } catch (\Exception $e) {
-            }
+        if (is_null($imageData)) {
+            return null;

         }
 
         }
 

-        if ($imageData === null) {
+        $extension = pathinfo($uri, PATHINFO_EXTENSION);
+        if ($extension === 'svg') {
+            $extension = 'svg+xml';
+        }
+
+        return 'data:image/' . $extension . ';base64,' . base64_encode($imageData);
+    }
+
+    /**
+     * 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.
+     */
+    private function imageUrlToStoragePath(string $url): ?string
+    {
+        $url = ltrim(trim($url), '/');
+
+        // Handle potential relative paths
+        $isRelative = strpos($url, 'http') !== 0;
+        if ($isRelative) {
+            if (strpos(strtolower($url), 'uploads/images') === 0) {
+                return trim($url, '/');
+            }

             return null;
         }
 
             return null;
         }
 

-        return 'data:image/' . pathinfo($uri, PATHINFO_EXTENSION) . ';base64,' . base64_encode($imageData);
+        // Handle local images based on paths on the same domain
+        $potentialHostPaths = [
+            url('uploads/images/'),
+            $this->getPublicUrl('/uploads/images/'),
+        ];
+
+        foreach ($potentialHostPaths as $potentialBasePath) {
+            $potentialBasePath = strtolower($potentialBasePath);
+            if (strpos(strtolower($url), $potentialBasePath) === 0) {
+                return 'uploads/images/' . trim(substr($url, strlen($potentialBasePath)), '/');
+            }
+        }
+
+        return null;

     }
 
     /**
      * Gets a public facing url for an image by checking relevant environment variables.
     }
 
     /**
      * Gets a public facing url for an image by checking relevant environment variables.

-     * @param string $filePath
-     * @return string
+     * If s3-style store is in use it will default to guessing a public bucket URL.

      */
      */

-    private function getPublicUrl($filePath)
+    private function getPublicUrl(string $filePath): string

     {
         if ($this->storageUrl === null) {
             $storageUrl = config('filesystems.url');
     {
         if ($this->storageUrl === null) {
             $storageUrl = config('filesystems.url');


@@ -458,7 +412,7 @@ class ImageService extends UploadService
             // 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.
             // 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 ($storageUrl == false && config('filesystems.default') === 's3') {
+            if ($storageUrl == false && config('filesystems.images') === 's3') {

                 $storageDetails = config('filesystems.disks.s3');
                 if (strpos($storageDetails['bucket'], '.') === false) {
                     $storageUrl = 'https://' . $storageDetails['bucket'] . '.s3.amazonaws.com';
                 $storageDetails = config('filesystems.disks.s3');
                 if (strpos($storageDetails['bucket'], '.') === false) {
                     $storageUrl = 'https://' . $storageDetails['bucket'] . '.s3.amazonaws.com';


@@ -469,7 +423,7 @@ class ImageService extends UploadService
             $this->storageUrl = $storageUrl;
         }
 
             $this->storageUrl = $storageUrl;
         }
 

-        $basePath = ($this->storageUrl == false) ? baseUrl('/') : $this->storageUrl;
+        $basePath = ($this->storageUrl == false) ? url('/') : $this->storageUrl;

         return rtrim($basePath, '/') . $filePath;
     }
 }
         return rtrim($basePath, '/') . $filePath;
     }
 }