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Diffstat (limited to 'lib/pleroma/upload/filter/exiftool.ex')
-rw-r--r-- | lib/pleroma/upload/filter/exiftool.ex | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/pleroma/upload/filter/exiftool.ex b/lib/pleroma/upload/filter/exiftool.ex new file mode 100644 index 000000000..ea8798fe3 --- /dev/null +++ b/lib/pleroma/upload/filter/exiftool.ex @@ -0,0 +1,26 @@ +# Pleroma: A lightweight social networking server +# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/> +# SPDX-License-Identifier: AGPL-3.0-only + +defmodule Pleroma.Upload.Filter.Exiftool do + @moduledoc """ + Strips GPS related EXIF tags and overwrites the file in place. + Also strips or replaces filesystem metadata e.g., timestamps. + """ + @behaviour Pleroma.Upload.Filter + + @spec filter(Pleroma.Upload.t()) :: :ok | {:error, String.t()} + def filter(%Pleroma.Upload{tempfile: file, content_type: "image" <> _}) do + try do + case System.cmd("exiftool", ["-overwrite_original", "-gps:all=", file], parallelism: true) do + {_response, 0} -> :ok + {error, 1} -> {:error, error} + end + rescue + _e in ErlangError -> + {:error, "exiftool command not found"} + end + end + + def filter(_), do: :ok +end |