117 lines
3.1 KiB
PHP
117 lines
3.1 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc.
|
|
*
|
|
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
|
|
* @author Joas Schilling <coding@schilljs.com>
|
|
* @author Morris Jobke <hey@morrisjobke.de>
|
|
* @author Olivier Paroz <github@oparoz.com>
|
|
* @author Robin Appelman <robin@icewind.nl>
|
|
* @author Robin McCorkell <robin@mccorkell.me.uk>
|
|
* @author Roeland Jago Douma <roeland@famdouma.nl>
|
|
* @author Tor Lillqvist <tml@collabora.com>
|
|
*
|
|
* @license AGPL-3.0
|
|
*
|
|
* This code is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License, version 3,
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* 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, version 3,
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>
|
|
*
|
|
*/
|
|
|
|
namespace OC\Preview;
|
|
|
|
use OCP\Files\File;
|
|
use OCP\IImage;
|
|
use OCP\ILogger;
|
|
|
|
abstract class Office extends ProviderV2 {
|
|
private $cmd;
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
public function getThumbnail(File $file, int $maxX, int $maxY): ?IImage {
|
|
$this->initCmd();
|
|
if (is_null($this->cmd)) {
|
|
return null;
|
|
}
|
|
|
|
$absPath = $this->getLocalFile($file);
|
|
|
|
$tmpDir = \OC::$server->getTempManager()->getTempBaseDir();
|
|
|
|
$defaultParameters = ' -env:UserInstallation=file://' . escapeshellarg($tmpDir . '/owncloud-' . \OC_Util::getInstanceId() . '/') . ' --headless --nologo --nofirststartwizard --invisible --norestore --convert-to png --outdir ';
|
|
$clParameters = \OC::$server->getConfig()->getSystemValue('preview_office_cl_parameters', $defaultParameters);
|
|
|
|
$exec = $this->cmd . $clParameters . escapeshellarg($tmpDir) . ' ' . escapeshellarg($absPath);
|
|
|
|
shell_exec($exec);
|
|
|
|
//create imagick object from png
|
|
$pngPreview = null;
|
|
try {
|
|
list($dirname, , , $filename) = array_values(pathinfo($absPath));
|
|
$pngPreview = $tmpDir . '/' . $filename . '.png';
|
|
|
|
$png = new \imagick($pngPreview . '[0]');
|
|
$png->setImageFormat('jpg');
|
|
} catch (\Exception $e) {
|
|
$this->cleanTmpFiles();
|
|
unlink($pngPreview);
|
|
\OC::$server->getLogger()->logException($e, [
|
|
'level' => ILogger::ERROR,
|
|
'app' => 'core',
|
|
]);
|
|
return null;
|
|
}
|
|
|
|
$image = new \OC_Image();
|
|
$image->loadFromData($png);
|
|
|
|
$this->cleanTmpFiles();
|
|
unlink($pngPreview);
|
|
|
|
if ($image->valid()) {
|
|
$image->scaleDownToFit($maxX, $maxY);
|
|
|
|
return $image;
|
|
}
|
|
return null;
|
|
|
|
}
|
|
|
|
private function initCmd() {
|
|
$cmd = '';
|
|
|
|
$libreOfficePath = \OC::$server->getConfig()->getSystemValue('preview_libreoffice_path', null);
|
|
if (is_string($libreOfficePath)) {
|
|
$cmd = $libreOfficePath;
|
|
}
|
|
|
|
$whichLibreOffice = shell_exec('command -v libreoffice');
|
|
if ($cmd === '' && !empty($whichLibreOffice)) {
|
|
$cmd = 'libreoffice';
|
|
}
|
|
|
|
$whichOpenOffice = shell_exec('command -v openoffice');
|
|
if ($cmd === '' && !empty($whichOpenOffice)) {
|
|
$cmd = 'openoffice';
|
|
}
|
|
|
|
if ($cmd === '') {
|
|
$cmd = null;
|
|
}
|
|
|
|
$this->cmd = $cmd;
|
|
}
|
|
}
|