akkoma/lib/pleroma/web/rich_media/helpers.ex
2019-03-04 18:39:13 +00:00

35 lines
1.2 KiB
Elixir

# 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.Object
alias Pleroma.HTML
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{} = activity) do
with true <- Pleroma.Config.get([:rich_media, :enabled]),
%Object{} = object <- Object.normalize(activity.data["object"]),
{: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
end