init tag feed

lib/pleroma/web/feed/tag_controller.ex

@@ -0,0 +1,36 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.Feed.TagController do
+  use Pleroma.Web, :controller
+
+  alias Pleroma.Config
+  alias Pleroma.Web.ActivityPub.ActivityPub
+  alias Pleroma.Web.Feed.FeedView
+
+  def feed(conn, %{"tag" => tag} = params) do
+    activities =
+      %{
+        "type" => ["Create"],
+        "whole_db" => true,
+        "tag" => parse_tag(tag)
+      }
+      |> Map.merge(Map.take(params, ["max_id"]))
+      |> ActivityPub.fetch_public_activities()
+
+    conn
+    |> put_resp_content_type("application/atom+xml")
+    |> put_view(FeedView)
+    |> render("tag.xml", activities: activities, feed_config: Config.get([:feed]))
+  end
+
+  defp parse_tag(raw_tag) when is_binary(raw_tag) do
+    case Enum.reverse(String.split(raw_tag, ".")) do
+      [format | tag] when format in ["atom", "rss"] -> Enum.join(tag, ".")
+      _ -> raw_tag
+    end
+  end
+
+  defp parse_tag(raw_tag), do: raw_tag
+end

lib/pleroma/web/feed/user_controller.ex

@@ -2,13 +2,14 @@
 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
-defmodule Pleroma.Web.Feed.FeedController do
+defmodule Pleroma.Web.Feed.UserController do
   use Pleroma.Web, :controller
 
   alias Fallback.RedirectController
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.ActivityPubController
+  alias Pleroma.Web.Feed.FeedView
 
   plug(Pleroma.Plugs.SetFormatPlug when action in [:feed_redirect])
 
@@ -27,7 +28,7 @@ defmodule Pleroma.Web.Feed.FeedController do
 
   def feed_redirect(conn, %{"nickname" => nickname}) do
     with {_, %User{} = user} <- {:fetch_user, User.get_cached_by_nickname(nickname)} do
-      redirect(conn, external: "#{feed_url(conn, :feed, user.nickname)}.atom")
+      redirect(conn, external: "#{user_feed_url(conn, :feed, user.nickname)}.atom")
     end
   end
 
@@ -44,7 +45,8 @@ defmodule Pleroma.Web.Feed.FeedController do
 
       conn
       |> put_resp_content_type("application/atom+xml")
-      |> render("feed.xml",
+      |> put_view(FeedView)
+      |> render("user.xml",
         user: user,
         activities: activities,
         feed_config: Pleroma.Config.get([:feed])