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diff --git a/lib/pleroma/web/activity_pub/mrf/force_bot_unlisted_policy.ex b/lib/pleroma/web/activity_pub/mrf/force_bot_unlisted_policy.ex
new file mode 100644
index 000000000..31fd90586
--- /dev/null
+++ b/lib/pleroma/web/activity_pub/mrf/force_bot_unlisted_policy.ex
@@ -0,0 +1,61 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.MRF.ForceBotUnlistedPolicy do
+ alias Pleroma.User
+ @behaviour Pleroma.Web.ActivityPub.MRF
+ @moduledoc "Remove bot posts from federated timeline"
+
+ require Pleroma.Constants
+
+ defp check_by_actor_type(user) do
+ if user.actor_type in ["Application", "Service"], do: 1.0, else: 0.0
+ end
+
+ defp check_by_nickname(user) do
+ if Regex.match?(~r/bot@|ebooks@/i, user.nickname), do: 1.0, else: 0.0
+ end
+
+ defp botness_score(user), do: check_by_actor_type(user) + check_by_nickname(user)
+
+ @impl true
+ def filter(
+ %{
+ "type" => "Create",
+ "to" => to,
+ "cc" => cc,
+ "actor" => actor,
+ "object" => object
+ } = message
+ ) do
+ user = User.get_cached_by_ap_id(actor)
+ isbot = 0.8 < botness_score(user)
+
+ if isbot and Enum.member?(to, Pleroma.Constants.as_public()) do
+ to = List.delete(to, Pleroma.Constants.as_public()) ++ [user.follower_address]
+ cc = List.delete(cc, user.follower_address) ++ [Pleroma.Constants.as_public()]
+
+ object =
+ object
+ |> Map.put("to", to)
+ |> Map.put("cc", cc)
+
+ message =
+ message
+ |> Map.put("to", to)
+ |> Map.put("cc", cc)
+ |> Map.put("object", object)
+
+ {:ok, message}
+ else
+ {:ok, message}
+ end
+ end
+
+ @impl true
+ def filter(message), do: {:ok, message}
+
+ @impl true
+ def describe, do: {:ok, %{}}
+end

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