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<?php
/* --------------------------------------------------------------
    ExtraContentController.inc.php 2016-07-13
    Gambio GmbH
    http://www.gambio.de
    Copyright (c) 2016 Gambio GmbH
    Released under the GNU General Public License (Version 2)
    [http://www.gnu.org/licenses/gpl-2.0.html]
    --------------------------------------------------------------
*/

/**
 * Class ExtraContentController
 *
 * This controller exists as a base for future extensions for cases in which content needs to be displayed in a
 * somewhat neutral way. cf. system/overloads/ExtraContentController for examples on how to use this.
 * 
 * @extends    HttpViewController
 * @category   System
 * @package    HttpViewControllers
 */
class ExtraContentController extends HttpViewController
{
    protected $timeout = 10;

    /**
     * Initialize the Controller with required properties
     *
     * @param \HttpContextReaderInterface     $httpContextReader
     * @param \HttpResponseProcessorInterface $httpResponseProcessor
     * @param \ContentViewInterface           $contentView
     *
     * @inheritdoc
     */
    public function __construct(HttpContextReaderInterface $httpContextReader,
                                HttpResponseProcessorInterface $httpResponseProcessor,
                                ContentViewInterface $contentView)
    {
        parent::__construct($httpContextReader, $httpResponseProcessor, $contentView);
    }

    public function actionDefault()
    {
        return MainFactory::create('RedirectHttpControllerResponse', GM_HTTP_SERVER.DIR_WS_CATALOG);
    }

    protected function _getExternalContent($url)
    {
        $curlOptions = [
            CURLOPT_URL => $url,
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_TIMEOUT => $this->timeout,
        ];
        $ch = curl_init();
        curl_setopt_array($ch, $curlOptions);
        $content = curl_exec($ch);
        $curlErrno = curl_errno($ch);
        $curlError = curl_error($ch);
        curl_close($ch);
        if($curlErrno > 0)
        {
            throw new Exception(sprintf("Error retrieving external content: %d - %s", $curlErrno, $curlError));
        }
        return $content;
    }
}