70 lines
2.3 KiB
Elixir
70 lines
2.3 KiB
Elixir
# 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.VocabularyPolicy do
|
|
@moduledoc "Filter messages which belong to certain activity vocabularies"
|
|
|
|
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
|
|
|
|
@impl true
|
|
def filter(%{"type" => "Undo", "object" => child_message} = message) do
|
|
with {:ok, _} <- filter(child_message) do
|
|
{:ok, message}
|
|
else
|
|
{:reject, _} = e -> e
|
|
end
|
|
end
|
|
|
|
def filter(%{"type" => message_type} = message) do
|
|
with accepted_vocabulary <- Pleroma.Config.get([:mrf_vocabulary, :accept]),
|
|
rejected_vocabulary <- Pleroma.Config.get([:mrf_vocabulary, :reject]),
|
|
{_, true} <-
|
|
{:accepted,
|
|
Enum.empty?(accepted_vocabulary) || Enum.member?(accepted_vocabulary, message_type)},
|
|
{_, false} <-
|
|
{:rejected,
|
|
length(rejected_vocabulary) > 0 && Enum.member?(rejected_vocabulary, message_type)},
|
|
{:ok, _} <- filter(message["object"]) do
|
|
{:ok, message}
|
|
else
|
|
{:reject, _} = e -> e
|
|
{:accepted, _} -> {:reject, "[VocabularyPolicy] #{message_type} not in accept list"}
|
|
{:rejected, _} -> {:reject, "[VocabularyPolicy] #{message_type} in reject list"}
|
|
_ -> {:reject, "[VocabularyPolicy]"}
|
|
end
|
|
end
|
|
|
|
def filter(message), do: {:ok, message}
|
|
|
|
@impl true
|
|
def describe,
|
|
do: {:ok, %{mrf_vocabulary: Pleroma.Config.get(:mrf_vocabulary) |> Map.new()}}
|
|
|
|
@impl true
|
|
def config_description do
|
|
%{
|
|
key: :mrf_vocabulary,
|
|
related_policy: "Pleroma.Web.ActivityPub.MRF.VocabularyPolicy",
|
|
label: "MRF Vocabulary",
|
|
description: "Filter messages which belong to certain activity vocabularies",
|
|
children: [
|
|
%{
|
|
key: :accept,
|
|
type: {:list, :string},
|
|
description:
|
|
"A list of ActivityStreams terms to accept. If empty, all supported messages are accepted.",
|
|
suggestions: ["Create", "Follow", "Mention", "Announce", "Like"]
|
|
},
|
|
%{
|
|
key: :reject,
|
|
type: {:list, :string},
|
|
description:
|
|
"A list of ActivityStreams terms to reject. If empty, no messages are rejected.",
|
|
suggestions: ["Create", "Follow", "Mention", "Announce", "Like"]
|
|
}
|
|
]
|
|
}
|
|
end
|
|
end
|