54 lines
1.5 KiB
PHP
54 lines
1.5 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright (c) 2020 Julius Härtl <jus@bitgrid.net>
|
|
*
|
|
* @author Julius Härtl <jus@bitgrid.net>
|
|
*
|
|
* @license GNU AGPL version 3 or any later version
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as
|
|
* published by the Free Software Foundation, either version 3 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
namespace OC\Preview;
|
|
|
|
use OC\Archive\ZIP;
|
|
use OCP\Files\File;
|
|
use OCP\IImage;
|
|
|
|
/**
|
|
* Extracts a preview from files that embed them in an ZIP archive
|
|
*/
|
|
abstract class Bundled extends ProviderV2 {
|
|
protected function extractThumbnail(File $file, $path): ?IImage {
|
|
$sourceTmp = \OC::$server->getTempManager()->getTemporaryFile();
|
|
$targetTmp = \OC::$server->getTempManager()->getTemporaryFile();
|
|
|
|
try {
|
|
$content = $file->fopen('r');
|
|
file_put_contents($sourceTmp, $content);
|
|
|
|
$zip = new ZIP($sourceTmp);
|
|
$zip->extractFile($path, $targetTmp);
|
|
|
|
$image = new \OC_Image();
|
|
$image->loadFromFile($targetTmp);
|
|
$image->fixOrientation();
|
|
|
|
return $image;
|
|
} catch (\Exception $e) {
|
|
return null;
|
|
}
|
|
}
|
|
}
|