42 lines
1.5 KiB
Elixir
42 lines
1.5 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.ActivityPub.MRF.HellthreadPolicy do
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alias Pleroma.User
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@behaviour Pleroma.Web.ActivityPub.MRF
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@impl true
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def filter(%{"type" => "Create"} = object) do
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delist_threshold = Pleroma.Config.get([:mrf_hellthread, :delist_threshold])
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reject_threshold = Pleroma.Config.get([:mrf_hellthread, :reject_threshold])
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recipients = (object["to"] || []) ++ (object["cc"] || [])
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cond do
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length(recipients) > reject_threshold ->
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{:reject, nil}
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length(recipients) > delist_threshold ->
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if Enum.member?(object["to"], "https://www.w3.org/ns/activitystreams#Public") or
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Enum.member?(object["cc"], "https://www.w3.org/ns/activitystreams#Public") do
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object
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|> Kernel.update_in(["object", "to"], [
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User.get_cached_by_ap_id(object["actor"].follower_address)
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])
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|> Kernel.update_in(["object", "cc"], ["https://www.w3.org/ns/activitystreams#Public"])
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|> Kernel.update_in(["to"], [
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User.get_cached_by_ap_id(object["actor"].follower_address)
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])
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|> Kernel.update_in(["cc"], ["https://www.w3.org/ns/activitystreams#Public"])
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else
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{:ok, object}
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end
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true ->
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{:ok, object}
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end
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end
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@impl true
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def filter(object), do: {:ok, object}
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end
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