Add subscription JSON export for NewPipe

src/invidious/routes/subscriptions.cr

@@ -80,30 +80,23 @@ module Invidious::Routes::Subscriptions
     subscriptions.sort_by!(&.author.downcase)
 
     if action_takeout
-      if format == "json"
-        env.response.content_type = "application/json"
-        env.response.headers["content-disposition"] = "attachment"
+      env.response.content_type = "application/json"
+      env.response.headers["content-disposition"] = "attachment"
 
+      if format == "json"
         return Invidious::User::Export.to_invidious(user)
+      elsif format == "newpipe_json"
+        return Invidious::User::Export.to_newpipe(subscriptions)
       else
         env.response.content_type = "application/xml"
-        env.response.headers["content-disposition"] = "attachment"
         export = XML.build do |xml|
           xml.element("opml", version: "1.1") do
             xml.element("body") do
-              if format == "newpipe"
-                title = "YouTube Subscriptions"
-              else
-                title = "Invidious Subscriptions"
-              end
+              title = "Invidious Subscriptions"
 
               xml.element("outline", text: title, title: title) do
                 subscriptions.each do |channel|
-                  if format == "newpipe"
-                    xml_url = "https://www.youtube.com/feeds/videos.xml?channel_id=#{channel.id}"
-                  else
-                    xml_url = "#{HOST_URL}/feed/channel/#{channel.id}"
-                  end
+                  xml_url = "#{HOST_URL}/feed/channel/#{channel.id}"
 
                   xml.element("outline", text: channel.author, title: channel.author,
                     "type": "rss", xmlUrl: xml_url)

src/invidious/user/exports.cr

@@ -2,6 +2,26 @@ struct Invidious::User
   module Export
     extend self
 
+    def to_newpipe(subscriptions)
+      return JSON.build do |json|
+        json.object do
+          json.field "subscriptions" do
+            json.array do
+              subscriptions.each do |channel|
+                json.object do
+                  json.field "service_id", 0
+                  json.field "url", "https://www.youtube.com/channel/" + channel.id
+                  json.field "name", channel.author
+                end
+              end
+            end
+          end
+          json.field "app_version", "0.29.0"
+          json.field "app_version_int", 1014
+        end
+      end
+    end
+
     def to_invidious(user : User)
       playlists = Invidious::Database::Playlists.select_like_iv(user.email)
 

src/invidious/views/user/data_control.ecr

@@ -57,7 +57,11 @@
             </div>
 
             <div class="pure-control-group">
-                <a href="/subscription_manager?action_takeout=1&format=newpipe"><%= I18n.translate(locale, "Export subscriptions as OPML (for NewPipe & FreeTube)") %></a>
+                <a href="/subscription_manager?action_takeout=1&format=opml_freetube"><%= I18n.translate(locale, "Export subscriptions as OPML (for FreeTube)") %></a>
+            </div>
+
+            <div class="pure-control-group">
+                <a href="/subscription_manager?action_takeout=1&format=newpipe_json"><%= I18n.translate(locale, "Export subscriptions as JSON (for NewPipe)") %></a>
             </div>
 
             <div class="pure-control-group">