defmodule Pleroma.Web.ActivityPub.MRF.FollowBotPolicy do @behaviour Pleroma.Web.ActivityPub.MRF alias Pleroma.Config alias Pleroma.User alias Pleroma.Web.CommonAPI require Logger @impl true def filter(message) do with follower_nickname <- Config.get([:mrf_follow_bot, :follower_nickname]), %User{actor_type: "Service"} = follower <- User.get_cached_by_nickname(follower_nickname), %{"type" => "Create", "object" => %{"type" => "Note"}} <- message do try_follow(follower, message) else nil -> Logger.warn( "#{__MODULE__} skipped because of missing `:mrf_follow_bot, :follower_nickname` configuration, the :follower_nickname account does not exist, or the account is not correctly configured as a bot." ) {:ok, message} _ -> {:ok, message} end end defp try_follow(follower, message) do Task.start(fn -> to = Map.get(message, "to", []) cc = Map.get(message, "cc", []) actor = [message["actor"]] Enum.concat([to, cc, actor]) |> List.flatten() |> User.get_all_by_ap_id() |> Enum.each(fn user -> Logger.info("Checking if #{user.nickname} can be followed") with false <- User.following?(follower, user), false <- user.locked, false <- (user.bio || "") |> String.downcase() |> String.contains?("nobot") do Logger.info("Following #{user.nickname}") CommonAPI.follow(follower, user) end end) end) {:ok, message} end @impl true def describe do {:ok, %{}} end end