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<?php
/**
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
*/
namespace Piwik\Plugins\RssWidget;
use Piwik\Cache;
use Matomo\Cache\Lazy;
use Piwik\Http;
/**
*
*/
class RssRenderer
{
protected $url = null;
protected $count = 3;
protected $showDescription = false;
protected $showContent = false;
/**
* @var Lazy
*/
private $cache;
public function __construct($url)
{
$this->url = $url;
$this->cache = Cache::getLazyCache();
}
public function showDescription($bool)
{
$this->showDescription = $bool;
}
public function showContent($bool)
{
$this->showContent = $bool;
}
public function setCountPosts($count)
{
$this->count = $count;
}
public function get()
{
$cacheId = 'RSS_' . md5($this->url);
$output = $this->cache->fetch($cacheId);
if (!$output) {
try {
$content = Http::fetchRemoteFile($this->url, null, 0, 15);
$rss = @simplexml_load_string($content);
if ($rss === false) {
throw new \Exception("Failed to parse XML.");
}
} catch (\Exception $e) {
throw new \Exception("Error while importing feed: {$e->getMessage()}\n");
}
$output = '<div style="padding:10px 15px;"><ul class="rss">';
$i = 0;
$items = array();
if (!empty($rss->channel->item)) {
$items = $rss->channel->item;
}
foreach ($items as $post) {
$title = $post->title;
$date = @strftime("%B %e, %Y", strtotime($post->pubDate));
$link = $post->link;
$output .= '<li><a class="rss-title" title="" target="_blank" rel="noreferrer noopener" href="' . htmlspecialchars($link, ENT_COMPAT, 'UTF-8') . '">' . $title . '</a>' .
'<span class="rss-date">' . $date . '</span>';
if ($this->showDescription) {
$output .= '<div class="rss-description">' . $this->addTargetBlankAndNoReferrerToLinks($post->description) . '</div>';
}
if ($this->showContent) {
$output .= '<div class="rss-content">' . $this->addTargetBlankAndNoReferrerToLinks($post->content) . '</div>';
}
$output .= '</li>';
if (++$i == $this->count) {
break;
}
}
$output .= '</ul></div>';
$this->cache->save($cacheId, $output, 60 * 60 * 24);
}
return $output;
}
private function addTargetBlankAndNoReferrerToLinks($content)
{
return str_replace('<a ', '<a target="_blank" rel="noreferrer noopener"', $content);
}
}
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