[RSS] Improve error handling when a RSS feed doesn't contain torrents

src/gui/rss/rss_imp.cpp

@@ -355,6 +355,8 @@ void RSSImp::downloadSelectedTorrents()
         RssArticlePtr article = feed->getItem(item->data(Article::IdRole).toString());
         if (!article) continue;
 
+        if (article->torrentUrl().isEmpty())
+            continue;
         if (Preferences::instance()->useAdditionDialog())
             AddNewTorrentDialog::show(article->torrentUrl());
         else

src/gui/rss/rssarticle.cpp

@@ -82,7 +82,7 @@ const QString& RssArticle::author() const {
 }
 
 const QString& RssArticle::torrentUrl() const {
-  return m_torrentUrl.isEmpty() ? m_link : m_torrentUrl;
+  return m_torrentUrl;
 }
 
 const QString& RssArticle::link() const {
@@ -123,6 +123,6 @@ const QString& RssArticle::title() const
 }
 
 void RssArticle::handleTorrentDownloadSuccess(const QString &url) {
-  if (url == m_torrentUrl || url == m_link)
+  if (url == m_torrentUrl)
     markAsRead();
 }

src/gui/rss/rssfeed.cpp

@@ -364,6 +364,12 @@ void RssFeed::downloadArticleTorrentIfMatching(RssDownloadRuleList* rules, const
   rules->saveRulesToStorage();
   // Download the torrent
   const QString& torrent_url = article->torrentUrl();
+  if (torrent_url.isEmpty()) {
+    Logger::instance()->addMessage(tr("Automatic download %1 from %2 RSS feed failed because it doesn't contain a torrent or a magnet link...").arg(article->title()).arg(displayName()), Log::WARNING);
+    article->markAsRead();
+    return;
+  }
+
   Logger::instance()->addMessage(tr("Automatically downloading %1 torrent from %2 RSS feed...").arg(article->title()).arg(displayName()));
   connect(BitTorrent::Session::instance(), SIGNAL(downloadFromUrlFinished(QString)), article.data(), SLOT(handleTorrentDownloadSuccess(const QString&)), Qt::UniqueConnection);
   connect(article.data(), SIGNAL(articleWasRead()), SLOT(handleArticleStateChanged()), Qt::UniqueConnection);