48 lines
1.4 KiB
Elixir
48 lines
1.4 KiB
Elixir
# Pleroma: A lightweight social networking server
|
|
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
|
|
# SPDX-License-Identifier: AGPL-3.0-only
|
|
|
|
defmodule Pleroma.Web.ActivityPub.MRF.HellthreadPolicy do
|
|
alias Pleroma.User
|
|
@behaviour Pleroma.Web.ActivityPub.MRF
|
|
|
|
defp delist_message(message) do
|
|
follower_collection = User.get_cached_by_ap_id(message["actor"]).follower_address
|
|
|
|
message
|
|
|> Map.put("to", [follower_collection])
|
|
|> Map.put("cc", ["https://www.w3.org/ns/activitystreams#Public"])
|
|
end
|
|
|
|
@impl true
|
|
def filter(%{"type" => "Create"} = message) do
|
|
delist_threshold = Pleroma.Config.get([:mrf_hellthread, :delist_threshold])
|
|
|
|
reject_threshold =
|
|
Pleroma.Config.get(
|
|
[:mrf_hellthread, :reject_threshold],
|
|
Pleroma.Config.get([:mrf_hellthread, :threshold])
|
|
)
|
|
|
|
recipients = (message["to"] || []) ++ (message["cc"] || [])
|
|
|
|
cond do
|
|
length(recipients) > reject_threshold and reject_threshold > 0 ->
|
|
{:reject, nil}
|
|
|
|
length(recipients) > delist_threshold and delist_threshold > 0 ->
|
|
if Enum.member?(message["to"], "https://www.w3.org/ns/activitystreams#Public") or
|
|
Enum.member?(message["cc"], "https://www.w3.org/ns/activitystreams#Public") do
|
|
{:ok, delist_message(message)}
|
|
else
|
|
{:ok, message}
|
|
end
|
|
|
|
true ->
|
|
{:ok, message}
|
|
end
|
|
end
|
|
|
|
@impl true
|
|
def filter(message), do: {:ok, message}
|
|
end
|