git.squeep.com Git - akkoma/blob - lib/pleroma/web/feed/tag_controller.ex

   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.Feed.TagController do
   6   use Pleroma.Web, :controller
   7
   8   alias Pleroma.Config
   9   alias Pleroma.Web.ActivityPub.ActivityPub
  10   alias Pleroma.Web.Feed.FeedView
  11
  12   import Pleroma.Web.ControllerHelper, only: [put_if_exist: 3]
  13
  14   def feed(conn, %{"tag" => raw_tag} = params) do
  15     {format, tag} = parse_tag(raw_tag)
  16
  17     activities =
  18       %{"type" => ["Create"], "tag" => tag}
  19       |> put_if_exist("max_id", params["max_id"])
  20       |> ActivityPub.fetch_public_activities()
  21
  22     conn
  23     |> put_resp_content_type("application/#{format}+xml")
  24     |> put_view(FeedView)
  25     |> render("tag.#{format}",
  26       activities: activities,
  27       tag: tag,
  28       feed_config: Config.get([:feed])
  29     )
  30   end
  31
  32   @spec parse_tag(binary() | any()) :: {format :: String.t(), tag :: String.t()}
  33   defp parse_tag(raw_tag) when is_binary(raw_tag) do
  34     case Enum.reverse(String.split(raw_tag, ".")) do
  35       [format | tag] when format in ["atom", "rss"] -> {format, Enum.join(tag, ".")}
  36       _ -> {"rss", raw_tag}
  37     end
  38   end
  39
  40   defp parse_tag(raw_tag), do: {"rss", raw_tag}
  41 end