castopod/app/Controllers/FeedController.php

68 lines
1.9 KiB
PHP

<?php
/**
* @copyright 2020 Podlibre
* @license https://www.gnu.org/licenses/agpl-3.0.en.html AGPL3
* @link https://castopod.org/
*/
namespace App\Controllers;
use App\Models\EpisodeModel;
use App\Models\PodcastModel;
use CodeIgniter\Controller;
use CodeIgniter\Exceptions\PageNotFoundException;
use CodeIgniter\HTTP\ResponseInterface;
use Exception;
use Opawg\UserAgentsPhp\UserAgentsRSS;
class FeedController extends Controller
{
public function index(string $podcastName): ResponseInterface
{
helper('rss');
$podcast = (new PodcastModel())->where('name', $podcastName)
->first();
if (! $podcast) {
throw PageNotFoundException::forPageNotFound();
}
$service = null;
try {
$service = UserAgentsRSS::find($_SERVER['HTTP_USER_AGENT']);
} catch (Exception $exception) {
// If things go wrong the show must go on and the user must be able to download the file
log_message('critical', $exception);
}
$serviceSlug = null;
if ($service) {
$serviceSlug = $service['slug'];
}
$cacheName =
"podcast#{$podcast->id}_feed" . ($service ? "_{$serviceSlug}" : '');
if (! ($found = cache($cacheName))) {
$found = get_rss_feed($podcast, $serviceSlug);
// The page cache is set to expire after next episode publication or a decade by default so it is deleted manually upon podcast update
$secondsToNextUnpublishedEpisode = (new EpisodeModel())->getSecondsToNextUnpublishedEpisode(
$podcast->id,
);
cache()
->save(
$cacheName,
$found,
$secondsToNextUnpublishedEpisode
? $secondsToNextUnpublishedEpisode
: DECADE,
);
}
return $this->response->setXML($found);
}
}