baseless/lib/pleroma/web/activity_pub/mrf/block_notification_policy.ex
2025-01-24 09:36:38 -08:00

96 lines
2.8 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.BlockNotificationPolicy do
@moduledoc "Notify local users upon remote block and unblock."
@behaviour Pleroma.Web.ActivityPub.MRF.Policy
alias Pleroma.Config
alias Pleroma.User
alias Pleroma.Web.CommonAPI
defp is_block_or_unblock(%{"type" => "Block", "object" => object}),
do: {true, "blocked", object}
defp is_block_or_unblock(%{
"type" => "Undo",
"object" => %{"type" => "Block", "object" => object}
}),
do: {true, "unblocked", object}
defp is_block_or_unblock(_), do: {false, nil, nil}
@impl true
def filter(message) do
with {true, action, object} <- is_block_or_unblock(message),
%User{} = actor <- User.get_cached_by_ap_id(message["actor"]),
true <- actor.is_active,
%User{} = recipient <- User.get_cached_by_ap_id(object) do
bot_user = Pleroma.Config.get([:mrf_block_notification_policy, :user])
replacements = %{
"actor" => actor.nickname,
"target" => recipient.nickname,
"action" => action
}
msg =
Regex.replace(
~r/{([a-z]+)?}/,
Pleroma.Config.get([:mrf_block_notification_policy, :message]),
fn _, match ->
replacements[match]
end
)
_reply =
CommonAPI.post(User.get_by_nickname(bot_user), %{
status: msg,
visibility: Pleroma.Config.get([:mrf_block_notification_policy, :visibility])
})
end
{:ok, message}
end
@impl true
def describe do
mrf_block_notification_policy = Config.get(:mrf_block_notification_policy)
{:ok, %{mrf_block_notification_policy: mrf_block_notification_policy}}
end
@impl true
def config_description do
%{
key: :mrf_block_notification_policy,
related_policy: "Pleroma.Web.ActivityPub.MRF.BlockNotificationPolicy",
description: "Notify local users upon remote block.",
children: [
%{
key: :message,
type: :string,
label: "Message",
description:
"The message to send when someone is blocked or unblocked; use {actor}, {target}, and {action} variables",
suggestions: ["@{actor} {action} @{target}"]
},
%{
key: :user,
type: :string,
label: "Block User",
description: "The user account that announces a block"
},
%{
key: :visibility,
type: :string,
label: "Visibility",
description: "The visibility of block messages",
suggestions: ["public", "unlisted", "private", "direct"]
}
]
}
end
end