forked from AkkomaGang/akkoma
93 lines
3 KiB
Elixir
93 lines
3 KiB
Elixir
defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
|
|
alias Pleroma.User
|
|
@behaviour Pleroma.Web.ActivityPub.MRF
|
|
|
|
@mrf_policy Application.get_env(:pleroma, :mrf_simple)
|
|
|
|
@accept Keyword.get(@mrf_policy, :accept)
|
|
defp check_accept(%{host: actor_host} = actor_info, object)
|
|
when length(@accept) > 0 and not (actor_host in @accept) do
|
|
{:reject, nil}
|
|
end
|
|
|
|
defp check_accept(actor_info, object), do: {:ok, object}
|
|
|
|
@reject Keyword.get(@mrf_policy, :reject)
|
|
defp check_reject(%{host: actor_host} = actor_info, object) when actor_host in @reject do
|
|
{:reject, nil}
|
|
end
|
|
|
|
defp check_reject(actor_info, object), do: {:ok, object}
|
|
|
|
@media_removal Keyword.get(@mrf_policy, :media_removal)
|
|
defp check_media_removal(%{host: actor_host} = actor_info, %{"type" => "Create"} = object)
|
|
when actor_host in @media_removal do
|
|
child_object = Map.delete(object["object"], "attachment")
|
|
object = Map.put(object, "object", child_object)
|
|
{:ok, object}
|
|
end
|
|
|
|
defp check_media_removal(actor_info, object), do: {:ok, object}
|
|
|
|
@media_nsfw Keyword.get(@mrf_policy, :media_nsfw)
|
|
defp check_media_nsfw(
|
|
%{host: actor_host} = actor_info,
|
|
%{
|
|
"type" => "Create",
|
|
"object" => %{"attachment" => child_attachment} = child_object
|
|
} = object
|
|
)
|
|
when actor_host in @media_nsfw and length(child_attachment) > 0 do
|
|
tags = (child_object["tag"] || []) ++ ["nsfw"]
|
|
child_object = Map.put(child_object, "tags", tags)
|
|
child_object = Map.put(child_object, "sensitive", true)
|
|
object = Map.put(object, "object", child_object)
|
|
{:ok, object}
|
|
end
|
|
|
|
defp check_media_nsfw(actor_info, object), do: {:ok, object}
|
|
|
|
@ftl_removal Keyword.get(@mrf_policy, :federated_timeline_removal)
|
|
defp check_ftl_removal(%{host: actor_host} = actor_info, object)
|
|
when actor_host in @ftl_removal do
|
|
user = User.get_by_ap_id(object["actor"])
|
|
|
|
# flip to/cc relationship to make the post unlisted
|
|
object =
|
|
if "https://www.w3.org/ns/activitystreams#Public" in object["to"] and
|
|
user.follower_address in object["cc"] do
|
|
to =
|
|
List.delete(object["to"], "https://www.w3.org/ns/activitystreams#Public") ++
|
|
[user.follower_address]
|
|
|
|
cc =
|
|
List.delete(object["cc"], user.follower_address) ++
|
|
["https://www.w3.org/ns/activitystreams#Public"]
|
|
|
|
object
|
|
|> Map.put("to", to)
|
|
|> Map.put("cc", cc)
|
|
else
|
|
object
|
|
end
|
|
|
|
{:ok, object}
|
|
end
|
|
|
|
defp check_ftl_removal(actor_info, object), do: {:ok, object}
|
|
|
|
@impl true
|
|
def filter(object) do
|
|
actor_info = URI.parse(object["actor"])
|
|
|
|
with {:ok, object} <- check_accept(actor_info, object),
|
|
{:ok, object} <- check_reject(actor_info, object),
|
|
{:ok, object} <- check_media_removal(actor_info, object),
|
|
{:ok, object} <- check_media_nsfw(actor_info, object),
|
|
{:ok, object} <- check_ftl_removal(actor_info, object) do
|
|
{:ok, object}
|
|
else
|
|
_e -> {:reject, nil}
|
|
end
|
|
end
|
|
end
|