Merge pull request #1544 from schwukas/fix-youtube-subscription-import

Fix youtube subscription import

src/invidious.cr

@@ -1492,9 +1492,10 @@ post "/data_control" do |env|
           end
         end
       when "import_youtube"
-        subscriptions = XML.parse(body)
+        subscriptions = JSON.parse(body)
-        user.subscriptions += subscriptions.xpath_nodes(%q(//outline[@type="rss"])).map do |channel|
+
-          channel["xmlUrl"].match(/UC[a-zA-Z0-9_-]{22}/).not_nil![0]
+        user.subscriptions += subscriptions.as_a.compact_map do |entry|
+          entry["snippet"]["resourceId"]["channelId"].as_s
         end
         user.subscriptions.uniq!
 

src/invidious/views/data_control.ecr

@@ -14,7 +14,7 @@
 
             <div class="pure-control-group">
                 <label for="import_youtube">
-                    <a rel="noopener" target="_blank" href="https://support.google.com/youtube/answer/6224202?hl=en">
+                    <a rel="noopener" target="_blank" href="https://github.com/iv-org/documentation/blob/master/Export-YouTube-subscriptions.md">
                         <%= translate(locale, "Import YouTube subscriptions") %>
                     </a>
                 </label>