git.squeep.com Git - akkoma/blob - lib/pleroma/web/websub/websub_controller.ex

   1 defmodule Pleroma.Web.Websub.WebsubController do
   2   use Pleroma.Web, :controller
   3   alias Pleroma.Web.Websub.WebsubServerSubscription
   4   alias Pleroma.{Repo, User}
   5   alias Pleroma.Web.OStatus
   6   alias Pleroma.Web.Websub
   7   def websub_subscription_request(conn, %{"nickname" => nickname} = params) do
   8     user = User.get_cached_by_nickname(nickname)
   9
  10     with {:ok, topic} <- valid_topic(params, user),
  11          {:ok, lease_time} <- lease_time(params),
  12          secret <- params["hub.secret"]
  13     do
  14       data = %{
  15         state: "requested",
  16         topic: topic,
  17         secret: secret,
  18         callback: params["hub.callback"]
  19       }
  20
  21       change = Ecto.Changeset.change(%WebsubServerSubscription{}, data)
  22       websub = Repo.insert!(change)
  23
  24       change = Ecto.Changeset.change(websub, %{valid_until: NaiveDateTime.add(websub.inserted_at, lease_time)})
  25       websub = Repo.update!(change)
  26
  27       # Just spawn that for now, maybe pool later.
  28       spawn(fn -> Websub.verify(websub) end)
  29
  30       conn
  31       |> send_resp(202, "Accepted")
  32     else {:error, reason} ->
  33       conn
  34       |> send_resp(500, reason)
  35     end
  36   end
  37
  38   defp lease_time(%{"hub.lease_seconds" => lease_seconds}) do
  39     {:ok, String.to_integer(lease_seconds)}
  40   end
  41
  42   defp lease_time(_) do
  43     {:ok, 60 * 60 * 24 * 3} # three days
  44   end
  45
  46   defp valid_topic(%{"hub.topic" => topic}, user) do
  47     if topic == OStatus.feed_path(user) do
  48       {:ok, topic}
  49     else
  50       {:error, "Wrong topic requested, expected #{OStatus.feed_path(user)}, got #{topic}"}
  51     end
  52   end
  53 end