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75 lines
2 KiB
Elixir
75 lines
2 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2021 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.RejectNonPublic do
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@moduledoc "Rejects non-public (followers-only, direct) activities"
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alias Pleroma.Config
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alias Pleroma.User
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@behaviour Pleroma.Web.ActivityPub.MRF.Policy
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require Pleroma.Constants
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@impl true
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def filter(%{"type" => "Create"} = object) do
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user = User.get_cached_by_ap_id(object["actor"])
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# Determine visibility
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visibility =
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cond do
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Pleroma.Constants.as_public() in object["to"] -> "public"
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Pleroma.Constants.as_public() in object["cc"] -> "unlisted"
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user.follower_address in object["to"] -> "followers"
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true -> "direct"
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end
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policy = Config.get(:mrf_rejectnonpublic)
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cond do
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visibility in ["public", "unlisted"] ->
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{:ok, object}
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visibility == "followers" and Keyword.get(policy, :allow_followersonly) ->
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{:ok, object}
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visibility == "direct" and Keyword.get(policy, :allow_direct) ->
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{:ok, object}
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true ->
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{:reject, "[RejectNonPublic] visibility: #{visibility}"}
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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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@impl true
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def describe,
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do: {:ok, %{mrf_rejectnonpublic: Config.get(:mrf_rejectnonpublic) |> Map.new()}}
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@impl true
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def config_description do
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%{
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key: :mrf_rejectnonpublic,
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related_policy: "Pleroma.Web.ActivityPub.MRF.RejectNonPublic",
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description: "RejectNonPublic drops posts with non-public visibility settings.",
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label: "MRF Reject Non Public",
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children: [
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%{
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key: :allow_followersonly,
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label: "Allow followers-only",
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type: :boolean,
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description: "Whether to allow followers-only posts"
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},
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%{
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key: :allow_direct,
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type: :boolean,
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description: "Whether to allow direct messages"
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}
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]
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}
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end
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end
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