forked from AkkomaGang/akkoma
112 lines
3 KiB
Elixir
112 lines
3 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.TagPolicy do
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alias Pleroma.User
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@behaviour Pleroma.Web.ActivityPub.MRF
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defp get_tags(%User{tags: tags}) when is_list(tags), do: tags
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defp get_tags(_), do: []
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defp process_tag(
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"mrf_tag:media-force-nsfw",
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%{"type" => "Create", "object" => %{"attachment" => child_attachment} = object} = message
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)
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when length(child_attachment) > 0 do
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tags = (object["tag"] || []) ++ ["nsfw"]
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object =
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object
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|> Map.put("tags", tags)
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|> Map.put("sensitive", true)
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message = Map.put(message, "object", object)
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{:ok, message}
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end
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defp process_tag(
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"mrf_tag:media-strip",
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%{"type" => "Create", "object" => %{"attachment" => child_attachment} = object} = message
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)
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when length(child_attachment) > 0 do
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object = Map.delete(object, "attachment")
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message = Map.put(message, "object", object)
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{:ok, message}
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end
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defp process_tag(
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"mrf_tag:force-unlisted",
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%{"type" => "Create", "to" => to, "cc" => cc, "actor" => actor} = message
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) do
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user = User.get_cached_by_ap_id(actor)
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if Enum.member?(to, "https://www.w3.org/ns/activitystreams#Public") do
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to =
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List.delete(to, "https://www.w3.org/ns/activitystreams#Public") ++ [user.follower_address]
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cc =
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List.delete(cc, user.follower_address) ++ ["https://www.w3.org/ns/activitystreams#Public"]
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message =
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message
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|> Map.put("to", to)
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|> Map.put("cc", cc)
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{:ok, message}
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else
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{:ok, message}
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end
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end
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defp process_tag(
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"mrf_tag:sandbox",
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%{"type" => "Create", "to" => to, "cc" => cc, "actor" => actor} = message
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) do
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user = User.get_cached_by_ap_id(actor)
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if Enum.member?(to, "https://www.w3.org/ns/activitystreams#Public") or
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Enum.member?(cc, "https://www.w3.org/ns/activitystreams#Public") do
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to =
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List.delete(to, "https://www.w3.org/ns/activitystreams#Public") ++ [user.follower_address]
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cc = List.delete(cc, "https://www.w3.org/ns/activitystreams#Public")
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message =
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message
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|> Map.put("to", to)
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|> Map.put("cc", cc)
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{:ok, message}
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else
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{:ok, message}
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end
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end
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defp process_tag(_, message), do: {:ok, message}
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def filter_message(actor, message) do
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User.get_cached_by_ap_id(actor)
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|> get_tags()
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|> Enum.reduce({:ok, message}, fn
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tag, {:ok, message} ->
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process_tag(tag, message)
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_, error ->
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error
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end)
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end
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@impl true
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def filter(%{"object" => target_actor, "type" => "Follow"} = message),
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do: filter_message(target_actor, message)
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@impl true
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def filter(%{"actor" => actor, "type" => "Create"} = message),
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do: filter_message(actor, message)
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@impl true
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def filter(message), do: {:ok, message}
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end
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