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msd2/tracking/piwik/plugins/RssWidget/RssRenderer.php

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+<?php
+/**
+ * Piwik - free/libre analytics platform
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+
+namespace Piwik\Plugins\RssWidget;
+use Piwik\Cache;
+use Piwik\Http;
+
+/**
+ *
+ */
+class RssRenderer
+{
+    protected $url = null;
+    protected $count = 3;
+    protected $showDescription = false;
+    protected $showContent = false;
+    /**
+     * @var Cache\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);
+                $rss = simplexml_load_string($content);
+            } 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);
+    }
+}