Add option to import data from FreeTube

src/invidious.cr

@@ -991,6 +991,21 @@ post "/data_control" do |env|
         subscriptions.xpath_nodes(%q(//outline[@type="rss"])).each do |channel|
           ucid = channel["xmlUrl"].match(/UC[a-zA-Z0-9_-]{22}/).not_nil![0]
 
+          if !user.subscriptions.includes? ucid
+            PG_DB.exec("UPDATE users SET subscriptions = array_append(subscriptions,$1) WHERE id = $2", ucid, user.id)
+
+            begin
+              client = make_client(YT_URL)
+              get_channel(ucid, client, PG_DB, false, false)
+            rescue ex
+              next
+            end
+          end
+        end
+      when "import_freetube"
+        body.scan(/"channelId":"(?<channel_id>[a-zA-Z0-9_-]{24})"/).each do |md|
+          ucid = md["channel_id"]
+
           if !user.subscriptions.includes? ucid
             PG_DB.exec("UPDATE users SET subscriptions = array_append(subscriptions,$1) WHERE id = $2", ucid, user.id)
 

src/invidious/views/data_control.ecr

@@ -18,6 +18,11 @@
                 <input type="file" id="import_youtube" name="import_youtube">
             </div>
             
+            <div class="pure-control-group">
+                <label for="import_freetube">Import Freetube subscriptions (.db)</label>
+                <input type="file" id="import_freetube" name="import_freetube">
+            </div>
+
             <div class="pure-control-group">
                 <label for="import_newpipe_subscriptions">Import NewPipe subscriptions (.json)</label>
                 <input type="file" id="import_newpipe_subscriptions" name="import_newpipe_subscriptions">
@@ -39,7 +44,7 @@
             </div>
 
             <div class="pure-control-group">
-                <a href="/subscription_manager?action_takeout=1&format=newpipe">Export subscriptions as OPML (NewPipe)</a>
+                <a href="/subscription_manager?action_takeout=1&format=newpipe">Export subscriptions as OPML (for NewPipe & FreeTube)</a>
             </div>
 
             <div class="pure-control-group">