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fix: don't persist previews used during blurhash generation 

Signed-off-by: Richard Steinmetz <richard@steinmetz.cloud>
pull/46864/head
Richard Steinmetz 2024-07-30 08:59:46 +07:00
parent c882d78f58
commit 08c785ff46
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GPG Key ID: 27137D9E7D273FB2
1 changed files with 4 additions and 19 deletions
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23
lib/private/Blurhash/Listener/GenerateBlurhashMetadata.php
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@ -15,12 +15,10 @@ use OCP\EventDispatcher\Event;
use OCP\EventDispatcher\IEventDispatcher;
use OCP\EventDispatcher\IEventListener;
use OCP\Files\GenericFileException;
use OCP\Files\NotFoundException;
use OCP\Files\NotPermittedException;
use OCP\FilesMetadata\AMetadataEvent;
use OCP\FilesMetadata\Event\MetadataBackgroundEvent;
use OCP\FilesMetadata\Event\MetadataLiveEvent;
use OCP\IPreview;
use OCP\Lock\LockedException;
/**
@ -34,11 +32,6 @@ class GenerateBlurhashMetadata implements IEventListener {
private const COMPONENTS_X = 4;
private const COMPONENTS_Y = 3;
public function __construct(
private IPreview $preview,
) {
}
/**
* @throws NotPermittedException
* @throws GenericFileException
@ -67,20 +60,12 @@ class GenerateBlurhashMetadata implements IEventListener {
return;
}
$image = false;
try {
// using preview image to generate the blurhash
$preview = $this->preview->getPreview($file, 256, 256);
$image = @imagecreatefromstring($preview->getContent());
} catch (NotFoundException $e) {
// https://github.com/nextcloud/server/blob/9d70fd3e64b60a316a03fb2b237891380c310c58/lib/private/legacy/OC_Image.php#L668
// The preview system can fail on huge picture, in that case we use our own image resizer.
if (str_starts_with($file->getMimetype(), 'image/')) {
$image = $this->resizedImageFromFile($file);
}
if (!str_starts_with($file->getMimetype(), 'image/')) {
return;
}
if ($image === false) {
$image = $this->resizedImageFromFile($file);
if (!$image) {
return;
}