65 lines
2.1 KiB
PHP
65 lines
2.1 KiB
PHP
<?php
|
|
|
|
/**
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; under version 2
|
|
* of the License (non-upgradable).
|
|
*
|
|
* 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* Copyright (c) 2015 (original work) Open Assessment Technologies SA;
|
|
*
|
|
*/
|
|
|
|
namespace oat\tao\model\media;
|
|
|
|
use oat\tao\model\media\sourceStrategy\HttpSource;
|
|
use oat\oatbox\service\ServiceManager;
|
|
|
|
/**
|
|
* Base Media Resolver, that transforms an URL into a
|
|
* Media Asset
|
|
*/
|
|
class TaoMediaResolver
|
|
{
|
|
|
|
/**
|
|
* Resolve a taomedia url to a media asset
|
|
*
|
|
* @param string $url
|
|
* @throws \Exception
|
|
* @return \oat\tao\model\media\MediaAsset
|
|
*/
|
|
public function resolve($url)
|
|
{
|
|
$urlParts = parse_url($url);
|
|
if (isset($urlParts['scheme']) && $urlParts['scheme'] === MediaService::SCHEME_NAME && isset($urlParts['host'])) {
|
|
$mediaService = $this->getServiceLocator()->get(MediaService::SERVICE_ID);
|
|
$mediaSource = $mediaService->getMediaSource($urlParts['host']);
|
|
$mediaId = (isset($urlParts['path'])) ? trim($urlParts['path'], '/') : '';
|
|
return new MediaAsset($mediaSource, $mediaId);
|
|
} elseif (isset($urlParts['scheme']) && in_array($urlParts['scheme'], ['http','https'])) {
|
|
return new MediaAsset(new HttpSource(), $url);
|
|
} else {
|
|
throw new TaoMediaException('Cannot resolve ' . $url);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @deprecated
|
|
* @return \oat\oatbox\service\ServiceManager
|
|
*/
|
|
public function getServiceLocator()
|
|
{
|
|
return ServiceManager::getServiceManager();
|
|
}
|
|
}
|