27 lines
851 B
Elixir
27 lines
851 B
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Upload.Filter.Exiftool do
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@moduledoc """
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Strips GPS related EXIF tags and overwrites the file in place.
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Also strips or replaces filesystem metadata e.g., timestamps.
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"""
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@behaviour Pleroma.Upload.Filter
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@spec filter(Pleroma.Upload.t()) :: :ok | {:error, String.t()}
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def filter(%Pleroma.Upload{tempfile: file, content_type: "image" <> _}) do
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try do
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case System.cmd("exiftool", ["-overwrite_original", "-gps:all=", file], parallelism: true) do
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{_response, 0} -> :ok
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{error, 1} -> {:error, error}
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end
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rescue
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_e in ErlangError ->
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{:error, "exiftool command not found"}
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end
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end
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def filter(_), do: :ok
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end
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