+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Upload.Filter.SetMeta do
+ @moduledoc """
+ Extracts metadata about the upload, such as width/height
+ """
+ require Logger
+
+ @behaviour Pleroma.Upload.Filter
+
+ @spec filter(Pleroma.Upload.t()) ::
+ {:ok, :filtered, Pleroma.Upload.t()} | {:ok, :noop} | {:error, String.t()}
+ def filter(%Pleroma.Upload{tempfile: file, content_type: "image" <> _} = upload) do
+ try do
+ image =
+ file
+ |> Mogrify.open()
+ |> Mogrify.verbose()
+
+ upload =
+ upload
+ |> Map.put(:width, image.width)
+ |> Map.put(:height, image.height)
+
+ {:ok, :filtered, upload}
+ rescue
+ e in ErlangError ->
+ Logger.warn("#{__MODULE__}: #{inspect(e)}")
+ {:ok, :noop}
+ end
+ end
+
+ def filter(_), do: {:ok, :noop}
+end