mobilizon/lib/federation/activity_pub/visibility.ex

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# Portions of this file are derived from Pleroma:
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social>
# SPDX-License-Identifier: AGPL-3.0-only
# Upstream: https://git.pleroma.social/pleroma/pleroma/blob/develop/lib/pleroma/web/activity_pub/visibility.ex
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defmodule Mobilizon.Federation.ActivityPub.Visibility do
@moduledoc """
Utility functions related to content visibility
"""
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alias Mobilizon.Events.Comment
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alias Mobilizon.Federation.ActivityPub.Activity
@public "https://www.w3.org/ns/activitystreams#Public"
@spec is_public?(Activity.t() | map()) :: boolean()
def is_public?(%{data: %{"type" => "Tombstone"}}), do: false
def is_public?(%{data: data}), do: is_public?(data)
def is_public?(%Activity{data: data}), do: is_public?(data)
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def is_public?(data) when is_map(data) do
@public in (Map.get(data, "to", []) ++ Map.get(data, "cc", []))
end
def is_public?(%Comment{deleted_at: deleted_at}), do: !is_nil(deleted_at)
def is_public?(err), do: raise(ArgumentError, message: "Invalid argument #{inspect(err)}")
end