git.squeep.com Git - akkoma/blob - lib/pleroma/web/rich_media/parser.ex

   1 defmodule Pleroma.Web.RichMedia.Parser do
   2   @parsers [Pleroma.Web.RichMedia.Parsers.OGP]
   3
   4   if Mix.env() == :test do
   5     def parse(url), do: parse_url(url)
   6   else
   7     def parse(url),
   8       do: {:commit, Cachex.fetch!(:rich_media_cache, url, fn _ -> parse_url(url) end)}
   9   end
  10
  11   defp parse_url(url) do
  12     {:ok, %Tesla.Env{body: html}} = Pleroma.HTTP.get(url)
  13
  14     html |> maybe_parse() |> get_parsed_data()
  15   end
  16
  17   defp maybe_parse(html) do
  18     Enum.reduce_while(@parsers, %{}, fn parser, acc ->
  19       case parser.parse(html, acc) do
  20         {:ok, data} -> {:halt, data}
  21         {:error, _msg} -> {:cont, acc}
  22       end
  23     end)
  24   end
  25
  26   defp get_parsed_data(data) when data == %{} do
  27     {:error, "No metadata found"}
  28   end
  29
  30   defp get_parsed_data(data) do
  31     {:ok, data}
  32   end
  33 end