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lib/pleroma/web/activity_pub/mrf/brap_for_ukraine_policy.ex

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+# 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.BrapForUkrainePolicy do
+	require Logger
+	require Pleroma.Constants
+	alias Pleroma.User
+	@behaviour Pleroma.Web.ActivityPub.MRF
+
+	@impl true
+
+	def filter(
+		%{
+			"type" => "Create",
+			"to" => mto,
+			"cc" => mcc,
+			"actor" => mactor,
+                        "object" => object
+		} = message
+	) do
+		host = URI.parse(mactor).authority
+		if host == "bae.st" do
+			if Enum.member?(mto, Pleroma.Constants.as_public()) do
+				mcc = mcc ++ ["https://masochi.st/users/e"]
+				object = object |> Map.put("cc", mcc)
+				message = message  |> Map.put("cc", mcc) |> Map.put("object", object)
+				{:ok, message}
+			else
+				{:ok, message}
+			end
+		else
+			{:ok, message}
+		end
+	end
+
+	@impl true
+	def filter(message), do: {:ok, message}
+  @impl true
+  def describe, do: {:ok, %{}}
+end