diff options
author | lain <lain@soykaf.club> | 2021-03-02 19:54:30 +0000 |
---|---|---|
committer | lain <lain@soykaf.club> | 2021-03-02 19:54:30 +0000 |
commit | b221d77a6da07c684bdbc63ddf4500e0d7ffeae8 (patch) | |
tree | 0015c7c3ea57f7340fbf80fd230a5f5e1c548148 /lib/pleroma/web/activity_pub/mrf/no_empty_policy.ex | |
parent | c2186a62d54043ea9638d33f80c7576aba9783e8 (diff) | |
parent | 0a589c887bd4215e7d443a34c194fd0a3bde8f72 (diff) |
Merge branch 'release/2.3.0' into 'stable'
Release/2.3.0
See merge request pleroma/pleroma!3354
Diffstat (limited to 'lib/pleroma/web/activity_pub/mrf/no_empty_policy.ex')
-rw-r--r-- | lib/pleroma/web/activity_pub/mrf/no_empty_policy.ex | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/lib/pleroma/web/activity_pub/mrf/no_empty_policy.ex b/lib/pleroma/web/activity_pub/mrf/no_empty_policy.ex new file mode 100644 index 000000000..32bb1b645 --- /dev/null +++ b/lib/pleroma/web/activity_pub/mrf/no_empty_policy.ex @@ -0,0 +1,61 @@ +# Pleroma: A lightweight social networking server +# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/> +# SPDX-License-Identifier: AGPL-3.0-only + +defmodule Pleroma.Web.ActivityPub.MRF.NoEmptyPolicy do + @moduledoc "Filter local activities which have no content" + @behaviour Pleroma.Web.ActivityPub.MRF + + alias Pleroma.Web + + @impl true + def filter(%{"actor" => actor} = object) do + with true <- is_local?(actor), + true <- is_note?(object), + false <- has_attachment?(object), + true <- only_mentions?(object) do + {:reject, "[NoEmptyPolicy]"} + else + _ -> + {:ok, object} + end + end + + def filter(object), do: {:ok, object} + + defp is_local?(actor) do + if actor |> String.starts_with?("#{Web.base_url()}") do + true + else + false + end + end + + defp has_attachment?(%{ + "type" => "Create", + "object" => %{"type" => "Note", "attachment" => attachments} + }) + when length(attachments) > 0, + do: true + + defp has_attachment?(_), do: false + + defp only_mentions?(%{"type" => "Create", "object" => %{"type" => "Note", "source" => source}}) do + non_mentions = + source |> String.split() |> Enum.filter(&(not String.starts_with?(&1, "@"))) |> length + + if non_mentions > 0 do + false + else + true + end + end + + defp only_mentions?(_), do: false + + defp is_note?(%{"type" => "Create", "object" => %{"type" => "Note"}}), do: true + defp is_note?(_), do: false + + @impl true + def describe, do: {:ok, %{}} +end |