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<?php
/**
* Copyright (c) 2013 Georg Ehrke georg@ownCloud.com
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\Preview;
class SVG extends Provider {
/**
* {@inheritDoc}
*/
public function getMimeType() {
return '/image\/svg\+xml/';
}
/**
* {@inheritDoc}
*/
public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
try{
$svg = new \Imagick();
$svg->setBackgroundColor(new \ImagickPixel('transparent'));
$content = stream_get_contents($fileview->fopen($path, 'r'));
if(substr($content, 0, 5) !== '<?xml') {
$content = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>' . $content;
}
// Do not parse SVG files with references
if(stripos($content, 'xlink:href') !== false) {
return false;
}
$svg->readImageBlob($content);
$svg->setImageFormat('png32');
} catch (\Exception $e) {
\OC_Log::write('core', $e->getmessage(), \OC_Log::ERROR);
return false;
}
//new image object
$image = new \OC_Image();
$image->loadFromData($svg);
//check if image object is valid
return $image->valid() ? $image : false;
}
}
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