git.squeep.com Git - akkoma/blob - lib/pleroma/web/feed/user_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.UserController do
   6   use Pleroma.Web, :controller
   7
   8   alias Pleroma.User
   9   alias Pleroma.Web.ActivityPub.ActivityPub
  10   alias Pleroma.Web.ActivityPub.ActivityPubController
  11   alias Pleroma.Web.Feed.FeedView
  12
  13   plug(Pleroma.Web.Plugs.SetFormatPlug when action in [:feed_redirect])
  14
  15   action_fallback(:errors)
  16
  17   def feed_redirect(%{assigns: %{format: "html"}} = conn, %{"nickname" => nickname}) do
  18     with {_, %User{} = user} <- {:fetch_user, User.get_cached_by_nickname_or_id(nickname)} do
  19       Pleroma.Web.Fallback.RedirectController.redirector_with_meta(conn, %{user: user})
  20     end
  21   end
  22
  23   def feed_redirect(%{assigns: %{format: format}} = conn, _params)
  24       when format in ["json", "activity+json"] do
  25     with %{halted: false} = conn <-
  26            Pleroma.Web.Plugs.EnsureAuthenticatedPlug.call(conn,
  27              unless_func: &Pleroma.Web.FederatingPlug.federating?/1
  28            ) do
  29       ActivityPubController.call(conn, :user)
  30     end
  31   end
  32
  33   def feed_redirect(conn, %{"nickname" => nickname}) do
  34     with {_, %User{} = user} <- {:fetch_user, User.get_cached_by_nickname(nickname)} do
  35       redirect(conn, external: "#{user_feed_url(conn, :feed, user.nickname)}.atom")
  36     end
  37   end
  38
  39   def feed(conn, params) do
  40     unless Pleroma.Config.restrict_unauthenticated_access?(:profiles, :local) do
  41       render_feed(conn, params)
  42     else
  43       errors(conn, {:error, :not_found})
  44     end
  45   end
  46
  47   def render_feed(conn, %{"nickname" => nickname} = params) do
  48     format = get_format(conn)
  49
  50     format =
  51       if format in ["rss", "atom"] do
  52         format
  53       else
  54         "atom"
  55       end
  56
  57     with {_, %User{local: true} = user} <- {:fetch_user, User.get_cached_by_nickname(nickname)} do
  58       activities =
  59         %{
  60           type: ["Create"],
  61           actor_id: user.ap_id
  62         }
  63         |> Pleroma.Maps.put_if_present(:max_id, params["max_id"])
  64         |> ActivityPub.fetch_public_or_unlisted_activities()
  65
  66       conn
  67       |> put_resp_content_type("application/#{format}+xml")
  68       |> put_view(FeedView)
  69       |> render("user.#{format}",
  70         user: user,
  71         activities: activities,
  72         feed_config: Pleroma.Config.get([:feed])
  73       )
  74     end
  75   end
  76
  77   def errors(conn, {:error, :not_found}) do
  78     render_error(conn, :not_found, "Not found")
  79   end
  80
  81   def errors(conn, {:fetch_user, %User{local: false}}), do: errors(conn, {:error, :not_found})
  82   def errors(conn, {:fetch_user, nil}), do: errors(conn, {:error, :not_found})
  83
  84   def errors(conn, _) do
  85     render_error(conn, :internal_server_error, "Something went wrong")
  86   end
  87 end