git.squeep.com Git - akkoma/blob - lib/pleroma/web/activity_pub/side_effects.ex

   1 defmodule Pleroma.Web.ActivityPub.SideEffects do
   2   @moduledoc """
   3   This module looks at an inserted object and executes the side effects that it
   4   implies. For example, a `Like` activity will increase the like count on the
   5   liked object, a `Follow` activity will add the user to the follower
   6   collection, and so on.
   7   """
   8   alias Pleroma.Chat
   9   alias Pleroma.Notification
  10   alias Pleroma.Object
  11   alias Pleroma.User
  12   alias Pleroma.Web.ActivityPub.Utils
  13
  14   def handle(object, meta \\ [])
  15
  16   # Tasks this handles:
  17   # - Add like to object
  18   # - Set up notification
  19   def handle(%{data: %{"type" => "Like"}} = object, meta) do
  20     liked_object = Object.get_by_ap_id(object.data["object"])
  21     Utils.add_like_to_object(object, liked_object)
  22     Notification.create_notifications(object)
  23     {:ok, object, meta}
  24   end
  25
  26   def handle(%{data: %{"type" => "Create", "object" => object_id}} = activity, meta) do
  27     object = Object.get_by_ap_id(object_id)
  28
  29     {:ok, _object} = handle_object_creation(object)
  30
  31     {:ok, activity, meta}
  32   end
  33
  34   # Nothing to do
  35   def handle(object, meta) do
  36     {:ok, object, meta}
  37   end
  38
  39   def handle_object_creation(%{data: %{"type" => "ChatMessage"}} = object) do
  40     actor = User.get_cached_by_ap_id(object.data["actor"])
  41     recipient = User.get_cached_by_ap_id(hd(object.data["to"]))
  42
  43     [[actor, recipient], [recipient, actor]]
  44     |> Enum.each(fn [user, other_user] ->
  45       if user.local do
  46         Chat.bump_or_create(user.id, other_user.ap_id)
  47       end
  48     end)
  49
  50     {:ok, object}
  51   end
  52
  53   # Nothing to do
  54   def handle_object_creation(object) do
  55     {:ok, object}
  56   end
  57 end