96 lines
2.6 KiB
Elixir
96 lines
2.6 KiB
Elixir
defmodule Pleroma.Web.ActivityPub.MRF.RemoteReportPolicy do
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@moduledoc "Drop remote reports if they don't contain enough information."
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@behaviour Pleroma.Web.ActivityPub.MRF.Policy
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alias Pleroma.Config
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@impl true
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def filter(%{"type" => "Flag"} = object) do
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with {_, false} <- {:local, local?(object)},
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{:ok, _} <- maybe_reject_all(object),
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{:ok, _} <- maybe_reject_anonymous(object),
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{:ok, _} <- maybe_reject_empty_message(object) do
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{:ok, object}
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else
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{:local, true} -> {:ok, object}
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{:reject, message} -> {:reject, message}
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error -> {:reject, error}
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end
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end
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def filter(object), do: {:ok, object}
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defp maybe_reject_all(object) do
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if Config.get([:mrf_remote_report, :reject_all]) do
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{:reject, "[RemoteReportPolicy] Remote report"}
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else
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{:ok, object}
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end
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end
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defp maybe_reject_anonymous(%{"actor" => actor} = object) do
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with true <- Config.get([:mrf_remote_report, :reject_anonymous]),
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%URI{path: "/actor"} <- URI.parse(actor) do
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{:reject, "[RemoteReportPolicy] Anonymous: #{actor}"}
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else
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_ -> {:ok, object}
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end
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end
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defp maybe_reject_empty_message(%{"content" => content} = object)
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when is_binary(content) and content != "" do
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{:ok, object}
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end
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defp maybe_reject_empty_message(object) do
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if Config.get([:mrf_remote_report, :reject_empty_message]) do
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{:reject, ["RemoteReportPolicy] No content"]}
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else
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{:ok, object}
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end
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end
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defp local?(%{"actor" => actor}) do
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String.starts_with?(actor, Pleroma.Web.Endpoint.url())
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end
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@impl true
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def describe do
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mrf_remote_report =
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Config.get(:mrf_remote_report)
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|> Enum.into(%{})
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{:ok, %{mrf_remote_report: mrf_remote_report}}
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end
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@impl true
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def config_description do
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%{
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key: :mrf_remote_report,
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related_policy: "Pleroma.Web.ActivityPub.MRF.RemoteReportPolicy",
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label: "MRF Remote Report",
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description: "Drop remote reports if they don't contain enough information.",
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children: [
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%{
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key: :reject_all,
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type: :boolean,
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description: "Reject all remote reports? (this option takes precedence)",
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suggestions: [false]
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},
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%{
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key: :reject_anonymous,
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type: :boolean,
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description: "Reject anonymous remote reports?",
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suggestions: [true]
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},
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%{
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key: :reject_empty_message,
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type: :boolean,
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description: "Reject remote reports with no message?",
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suggestions: [true]
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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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