mirror of
https://github.com/BookStackApp/BookStack.git
synced 2024-10-01 01:36:00 -04:00
416 lines
14 KiB
PHP
416 lines
14 KiB
PHP
<?php namespace BookStack\Services;
|
|
|
|
use BookStack\Exceptions\ImageUploadException;
|
|
use BookStack\Image;
|
|
use BookStack\User;
|
|
use DB;
|
|
use Exception;
|
|
use Intervention\Image\Exception\NotSupportedException;
|
|
use Intervention\Image\ImageManager;
|
|
use Illuminate\Contracts\Filesystem\Factory as FileSystem;
|
|
use Illuminate\Contracts\Cache\Repository as Cache;
|
|
use Symfony\Component\HttpFoundation\File\UploadedFile;
|
|
|
|
class ImageService extends UploadService
|
|
{
|
|
|
|
protected $imageTool;
|
|
protected $cache;
|
|
protected $storageUrl;
|
|
protected $image;
|
|
|
|
/**
|
|
* ImageService constructor.
|
|
* @param Image $image
|
|
* @param ImageManager $imageTool
|
|
* @param FileSystem $fileSystem
|
|
* @param Cache $cache
|
|
*/
|
|
public function __construct(Image $image, ImageManager $imageTool, FileSystem $fileSystem, Cache $cache)
|
|
{
|
|
$this->image = $image;
|
|
$this->imageTool = $imageTool;
|
|
$this->cache = $cache;
|
|
parent::__construct($fileSystem);
|
|
}
|
|
|
|
/**
|
|
* Get the storage that will be used for storing images.
|
|
* @param string $type
|
|
* @return \Illuminate\Contracts\Filesystem\Filesystem
|
|
*/
|
|
protected function getStorage($type = '')
|
|
{
|
|
$storageType = config('filesystems.default');
|
|
|
|
// Override default location if set to local public to ensure not visible.
|
|
if ($type === 'system' && $storageType === 'local_secure') {
|
|
$storageType = 'local';
|
|
}
|
|
|
|
return $this->fileSystem->disk($storageType);
|
|
}
|
|
|
|
/**
|
|
* Saves a new image from an upload.
|
|
* @param UploadedFile $uploadedFile
|
|
* @param string $type
|
|
* @param int $uploadedTo
|
|
* @return mixed
|
|
* @throws ImageUploadException
|
|
*/
|
|
public function saveNewFromUpload(UploadedFile $uploadedFile, $type, $uploadedTo = 0)
|
|
{
|
|
$imageName = $uploadedFile->getClientOriginalName();
|
|
$imageData = file_get_contents($uploadedFile->getRealPath());
|
|
return $this->saveNew($imageName, $imageData, $type, $uploadedTo);
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
public function saveNewFromBase64Uri(string $base64Uri, string $name, string $type, $uploadedTo = 0)
|
|
{
|
|
$splitData = explode(';base64,', $base64Uri);
|
|
if (count($splitData) < 2) {
|
|
throw new ImageUploadException("Invalid base64 image data provided");
|
|
}
|
|
$data = base64_decode($splitData[1]);
|
|
return $this->saveNew($name, $data, $type, $uploadedTo);
|
|
}
|
|
|
|
/**
|
|
* 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);
|
|
$imageData = file_get_contents($url);
|
|
if ($imageData === false) {
|
|
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 $uploadedTo
|
|
* @return Image
|
|
* @throws ImageUploadException
|
|
*/
|
|
private function saveNew($imageName, $imageData, $type, $uploadedTo = 0)
|
|
{
|
|
$storage = $this->getStorage($type);
|
|
$secureUploads = setting('app-secure-images');
|
|
$imageName = str_replace(' ', '-', $imageName);
|
|
|
|
$imagePath = '/uploads/images/' . $type . '/' . Date('Y-m-M') . '/';
|
|
|
|
while ($storage->exists($imagePath . $imageName)) {
|
|
$imageName = str_random(3) . $imageName;
|
|
}
|
|
|
|
$fullPath = $imagePath . $imageName;
|
|
if ($secureUploads) {
|
|
$fullPath = $imagePath . str_random(16) . '-' . $imageName;
|
|
}
|
|
|
|
try {
|
|
$storage->put($fullPath, $imageData);
|
|
$storage->setVisibility($fullPath, 'public');
|
|
} catch (Exception $e) {
|
|
throw new ImageUploadException(trans('errors.path_not_writable', ['filePath' => $fullPath]));
|
|
}
|
|
|
|
$imageDetails = [
|
|
'name' => $imageName,
|
|
'path' => $fullPath,
|
|
'url' => $this->getPublicUrl($fullPath),
|
|
'type' => $type,
|
|
'uploaded_to' => $uploadedTo
|
|
];
|
|
|
|
if (user()->id !== 0) {
|
|
$userId = user()->id;
|
|
$imageDetails['created_by'] = $userId;
|
|
$imageDetails['updated_by'] = $userId;
|
|
}
|
|
|
|
$image = $this->image->newInstance();
|
|
$image->forceFill($imageDetails)->save();
|
|
return $image;
|
|
}
|
|
|
|
|
|
/**
|
|
* Checks if the image is a gif. Returns true if it is, else false.
|
|
* @param Image $image
|
|
* @return boolean
|
|
*/
|
|
protected function isGif(Image $image)
|
|
{
|
|
return strtolower(pathinfo($image->path, PATHINFO_EXTENSION)) === 'gif';
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
* @throws Exception
|
|
* @throws ImageUploadException
|
|
*/
|
|
public function getThumbnail(Image $image, $width = 220, $height = 220, $keepRatio = false)
|
|
{
|
|
if ($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);
|
|
}
|
|
|
|
try {
|
|
$thumb = $this->imageTool->make($storage->get($imagePath));
|
|
} 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, null, function ($constraint) {
|
|
$constraint->aspectRatio();
|
|
$constraint->upsize();
|
|
});
|
|
} else {
|
|
$thumb->fit($width, $height);
|
|
}
|
|
|
|
$thumbData = (string)$thumb->encode();
|
|
$storage->put($thumbFilePath, $thumbData);
|
|
$storage->setVisibility($thumbFilePath, 'public');
|
|
$this->cache->put('images-' . $image->id . '-' . $thumbFilePath, $thumbFilePath, 60 * 72);
|
|
|
|
return $this->getPublicUrl($thumbFilePath);
|
|
}
|
|
|
|
/**
|
|
* Get the raw data content from an image.
|
|
* @param Image $image
|
|
* @return string
|
|
* @throws \Illuminate\Contracts\Filesystem\FileNotFoundException
|
|
*/
|
|
public function getImageData(Image $image)
|
|
{
|
|
$imagePath = $image->path;
|
|
$storage = $this->getStorage();
|
|
return $storage->get($imagePath);
|
|
}
|
|
|
|
/**
|
|
* Destroy an image along with its revisions, thumbnails and remaining folders.
|
|
* @param Image $image
|
|
* @throws Exception
|
|
*/
|
|
public function destroy(Image $image)
|
|
{
|
|
$this->destroyImagesFromPath($image->path);
|
|
$image->delete();
|
|
}
|
|
|
|
/**
|
|
* Destroys an image at the given path.
|
|
* Searches for image thumbnails in addition to main provided path..
|
|
* @param string $path
|
|
* @return bool
|
|
*/
|
|
protected function destroyImagesFromPath(string $path)
|
|
{
|
|
$storage = $this->getStorage();
|
|
|
|
$imageFolder = dirname($path);
|
|
$imageFileName = basename($path);
|
|
$allImages = collect($storage->allFiles($imageFolder));
|
|
|
|
// Delete image files
|
|
$imagesToDelete = $allImages->filter(function ($imagePath) use ($imageFileName) {
|
|
$expectedIndex = strlen($imagePath) - strlen($imageFileName);
|
|
return strpos($imagePath, $imageFileName) === $expectedIndex;
|
|
});
|
|
$storage->delete($imagesToDelete->all());
|
|
|
|
// Cleanup of empty folders
|
|
$foldersInvolved = array_merge([$imageFolder], $storage->directories($imageFolder));
|
|
foreach ($foldersInvolved as $directory) {
|
|
if ($this->isFolderEmpty($directory)) {
|
|
$storage->deleteDirectory($directory);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Save a gravatar image and set a the profile image for a user.
|
|
* @param User $user
|
|
* @param int $size
|
|
* @return mixed
|
|
* @throws Exception
|
|
*/
|
|
public function saveUserGravatar(User $user, $size = 500)
|
|
{
|
|
$emailHash = md5(strtolower(trim($user->email)));
|
|
$url = 'https://www.gravatar.com/avatar/' . $emailHash . '?s=' . $size . '&d=identicon';
|
|
$imageName = str_replace(' ', '-', $user->name . '-gravatar.png');
|
|
$image = $this->saveNewFromUrl($url, 'user', $imageName);
|
|
$image->created_by = $user->id;
|
|
$image->updated_by = $user->id;
|
|
$image->save();
|
|
return $image;
|
|
}
|
|
|
|
|
|
/**
|
|
* Delete gallery and drawings that are not within HTML content of pages or page revisions.
|
|
* Checks based off of only the image name.
|
|
* 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'])
|
|
{
|
|
$types = array_intersect($types, ['gallery', 'drawio']);
|
|
$deletedPaths = [];
|
|
|
|
$this->image->newQuery()->whereIn('type', $types)
|
|
->chunk(1000, function($images) use ($types, $checkRevisions, &$deletedPaths, $dryRun) {
|
|
foreach ($images as $image) {
|
|
$searchQuery = '%' . basename($image->path) . '%';
|
|
$inPage = DB::table('pages')
|
|
->where('html', 'like', $searchQuery)->count() > 0;
|
|
$inRevision = false;
|
|
if ($checkRevisions) {
|
|
$inRevision = DB::table('page_revisions')
|
|
->where('html', 'like', $searchQuery)->count() > 0;
|
|
}
|
|
|
|
if (!$inPage && !$inRevision) {
|
|
$deletedPaths[] = $image->path;
|
|
if (!$dryRun) {
|
|
$this->destroy($image);
|
|
}
|
|
}
|
|
}
|
|
});
|
|
return $deletedPaths;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
public function imageUriToBase64(string $uri)
|
|
{
|
|
$isLocal = strpos(trim($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);
|
|
}
|
|
|
|
$imageData = null;
|
|
|
|
if ($isLocal) {
|
|
$uri = trim($uri, '/');
|
|
$storage = $this->getStorage();
|
|
if ($storage->exists($uri)) {
|
|
$imageData = $storage->get($uri);
|
|
}
|
|
} else {
|
|
try {
|
|
$ch = curl_init();
|
|
curl_setopt_array($ch, [CURLOPT_URL => $uri, CURLOPT_RETURNTRANSFER => 1, CURLOPT_CONNECTTIMEOUT => 5]);
|
|
$imageData = curl_exec($ch);
|
|
$err = curl_error($ch);
|
|
curl_close($ch);
|
|
if ($err) {
|
|
throw new \Exception("Image fetch failed, Received error: " . $err);
|
|
}
|
|
} catch (\Exception $e) {
|
|
}
|
|
}
|
|
|
|
if ($imageData === null) {
|
|
return null;
|
|
}
|
|
|
|
return 'data:image/' . pathinfo($uri, PATHINFO_EXTENSION) . ';base64,' . base64_encode($imageData);
|
|
}
|
|
|
|
/**
|
|
* Gets a public facing url for an image by checking relevant environment variables.
|
|
* @param string $filePath
|
|
* @return string
|
|
*/
|
|
private function getPublicUrl($filePath)
|
|
{
|
|
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.default') === '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;
|
|
}
|
|
|
|
$basePath = ($this->storageUrl == false) ? baseUrl('/') : $this->storageUrl;
|
|
return rtrim($basePath, '/') . $filePath;
|
|
}
|
|
}
|