77 lines
1.9 KiB
PHP
77 lines
1.9 KiB
PHP
<?php
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/**
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* Copyright (c) 2013 Georg Ehrke georg@ownCloud.com
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* This file is licensed under the Affero General Public License version 3 or
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* later.
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* See the COPYING-README file.
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*/
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namespace OC\Preview;
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abstract class Office extends Provider {
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private $cmd;
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/**
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* {@inheritDoc}
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*/
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public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
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$this->initCmd();
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if(is_null($this->cmd)) {
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return false;
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}
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$absPath = $fileview->toTmpFile($path);
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$tmpDir = get_temp_dir();
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$defaultParameters = ' -env:UserInstallation=file://' . escapeshellarg($tmpDir . '/owncloud-' . \OC_Util::getInstanceId().'/') . ' --headless --nologo --nofirststartwizard --invisible --norestore --convert-to pdf --outdir ';
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$clParameters = \OCP\Config::getSystemValue('preview_office_cl_parameters', $defaultParameters);
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$exec = $this->cmd . $clParameters . escapeshellarg($tmpDir) . ' ' . escapeshellarg($absPath);
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shell_exec($exec);
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//create imagick object from pdf
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try{
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$pdf = new \imagick($absPath . '.pdf' . '[0]');
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$pdf->setImageFormat('jpg');
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} catch (\Exception $e) {
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unlink($absPath);
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unlink($absPath . '.pdf');
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\OC_Log::write('core', $e->getmessage(), \OC_Log::ERROR);
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return false;
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}
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$image = new \OC_Image();
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$image->loadFromData($pdf);
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unlink($absPath);
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unlink($absPath . '.pdf');
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return $image->valid() ? $image : false;
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}
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private function initCmd() {
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$cmd = '';
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if(is_string(\OC_Config::getValue('preview_libreoffice_path', null))) {
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$cmd = \OC_Config::getValue('preview_libreoffice_path', null);
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}
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$whichLibreOffice = shell_exec('command -v libreoffice');
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if($cmd === '' && !empty($whichLibreOffice)) {
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$cmd = 'libreoffice';
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}
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$whichOpenOffice = shell_exec('command -v openoffice');
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if($cmd === '' && !empty($whichOpenOffice)) {
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$cmd = 'openoffice';
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}
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if($cmd === '') {
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$cmd = null;
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}
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$this->cmd = $cmd;
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}
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}
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