git.squeep.com Git - akkoma/blob - lib/pleroma/upload/filter/mogrify.ex

   1 defmodule Pleroma.Upload.Filter.Mogrify do
   2   @behaviour Pleroma.Upload.Filter
   3
   4   @type conversion :: action :: String.t() | {action :: String.t(), opts :: String.t()}
   5   @type conversions :: conversion() | [conversion()]
   6
   7   def filter(%Pleroma.Upload{tempfile: file, content_type: "image" <> _}) do
   8     filters = Pleroma.Config.get!([__MODULE__, :args])
   9
  10     file
  11     |> Mogrify.open()
  12     |> mogrify_filter(filters)
  13     |> Mogrify.save(in_place: true)
  14
  15     :ok
  16   end
  17
  18   def filter(_), do: :ok
  19
  20   defp mogrify_filter(mogrify, nil), do: mogrify
  21
  22   defp mogrify_filter(mogrify, [filter | rest]) do
  23     mogrify
  24     |> mogrify_filter(filter)
  25     |> mogrify_filter(rest)
  26   end
  27
  28   defp mogrify_filter(mogrify, []), do: mogrify
  29
  30   defp mogrify_filter(mogrify, {action, options}) do
  31     Mogrify.custom(mogrify, action, options)
  32   end
  33
  34   defp mogrify_filter(mogrify, action) when is_binary(action) do
  35     Mogrify.custom(mogrify, action)
  36   end
  37 end