# Pleroma: A lightweight social networking server # Copyright _ 2017-2019 Pleroma Authors <https://pleroma.social/> # SPDX-License-Identifier: AGPL-3.0-only defmodule Pleroma.Web.RichMedia.Helpers do alias Pleroma.Activity alias Pleroma.HTML alias Pleroma.Object alias Pleroma.Web.RichMedia.Parser defp validate_page_url(page_url) when is_binary(page_url) do if AutoLinker.Parser.is_url?(page_url, true) do URI.parse(page_url) |> validate_page_url else :error end end defp validate_page_url(%URI{authority: nil}), do: :error defp validate_page_url(%URI{scheme: nil}), do: :error defp validate_page_url(%URI{}), do: :ok defp validate_page_url(_), do: :error def fetch_data_for_activity(%Activity{data: %{"type" => "Create"}} = activity) do with true <- Pleroma.Config.get([:rich_media, :enabled]), %Object{} = object <- Object.normalize(activity), false <- object.data["sensitive"] || false, {:ok, page_url} <- HTML.extract_first_external_url(object, object.data["content"]), :ok <- validate_page_url(page_url), {:ok, rich_media} <- Parser.parse(page_url) do %{page_url: page_url, rich_media: rich_media} else _ -> %{} end end def fetch_data_for_activity(_), do: %{} def perform(:fetch, %Activity{} = activity), do: fetch_data_for_activity(activity) end