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.{Repo, User}
   4   alias Pleroma.Web.{Websub, Federator}
   5   alias Pleroma.Web.Websub.WebsubClientSubscription
   6   require Logger
   7
   8   def websub_subscription_request(conn, %{"nickname" => nickname} = params) do
   9     user = User.get_cached_by_nickname(nickname)
  10
  11     with {:ok, _websub} <- Websub.incoming_subscription_request(user, params)
  12     do
  13       conn
  14       |> send_resp(202, "Accepted")
  15     else {:error, reason} ->
  16       conn
  17       |> send_resp(500, reason)
  18     end
  19   end
  20
  21   # TODO: Extract this into the Websub module
  22   def websub_subscription_confirmation(conn, %{"id" => id, "hub.mode" => "subscribe", "hub.challenge" => challenge, "hub.topic" => topic} = params) do
  23     Logger.debug("Got websub confirmation")
  24     Logger.debug(inspect(params))
  25     lease_seconds = if params["hub.lease_seconds"] do
  26       String.to_integer(params["hub.lease_seconds"])
  27     else
  28       # Guess 3 days
  29       60 * 60 * 24 * 3
  30     end
  31
  32     with %WebsubClientSubscription{} = websub <- Repo.get_by(WebsubClientSubscription, id: id, topic: topic) do
  33       valid_until = NaiveDateTime.add(NaiveDateTime.utc_now, lease_seconds)
  34       change = Ecto.Changeset.change(websub, %{state: "accepted", valid_until: valid_until})
  35       {:ok, _websub} = Repo.update(change)
  36       conn
  37       |> send_resp(200, challenge)
  38     else _e ->
  39       conn
  40       |> send_resp(500, "Error")
  41     end
  42   end
  43
  44   def websub_incoming(conn, %{"id" => id}) do
  45     with "sha1=" <> signature <- hd(get_req_header(conn, "x-hub-signature")),
  46          signature <- String.downcase(signature),
  47          %WebsubClientSubscription{} = websub <- Repo.get(WebsubClientSubscription, id),
  48          {:ok, body, _conn} = read_body(conn),
  49          ^signature <- Websub.sign(websub.secret, body) do
  50       Federator.enqueue(:incoming_doc, body)
  51       conn
  52       |> send_resp(200, "OK")
  53     else _e ->
  54       Logger.debug("Can't handle incoming subscription post")
  55       conn
  56       |> send_resp(500, "Error")
  57     end
  58   end
  59 end