akkoma/lib/pleroma/web/activity_pub/side_effects.ex
lain e62173dfc8 SideEffects: Run in transaction.
This fixes race conditions.
2020-04-22 18:40:53 +02:00

34 lines
949 B
Elixir

defmodule Pleroma.Web.ActivityPub.SideEffects do
@moduledoc """
This module looks at an inserted object and executes the side effects that it
implies. For example, a `Like` activity will increase the like count on the
liked object, a `Follow` activity will add the user to the follower
collection, and so on.
"""
alias Pleroma.Notification
alias Pleroma.Object
alias Pleroma.Web.ActivityPub.Utils
def handle(object, meta \\ [])
# Tasks this handles:
# - Add like to object
# - Set up notification
def handle(%{data: %{"type" => "Like"}} = object, meta) do
Pleroma.Repo.transaction(fn ->
liked_object = Object.get_by_ap_id(object.data["object"])
Utils.add_like_to_object(object, liked_object)
Notification.create_notifications(object)
{:ok, object, meta}
end)
|> (fn {:ok, res} -> res end).()
end
# Nothing to do
def handle(object, meta) do
{:ok, object, meta}
end
end