44 lines
987 B
PHP
44 lines
987 B
PHP
<?php
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/**
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* SPDX-FileCopyrightText: 2020 F7cloud GmbH and F7cloud contributors
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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namespace OC\Preview;
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use OC\Archive\ZIP;
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use OCP\Files\File;
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use OCP\IImage;
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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, string $path): ?IImage {
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if ($file->getSize() === 0) {
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return null;
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}
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$sourceTmp = \OC::$server->getTempManager()->getTemporaryFile();
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$targetTmp = \OC::$server->getTempManager()->getTemporaryFile();
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$this->tmpFiles[] = $sourceTmp;
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$this->tmpFiles[] = $targetTmp;
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try {
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$content = $file->fopen('r');
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file_put_contents($sourceTmp, $content);
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$zip = new ZIP($sourceTmp);
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$zip->extractFile($path, $targetTmp);
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$image = new \OCP\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 (\Throwable $e) {
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return null;
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}
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}
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}
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