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