4ea07f74e9
We only need to check the content-type. There's no chance a webp file will get mismatched as another image type.
31 lines
1,014 B
Elixir
31 lines
1,014 B
Elixir
# 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, any()} | {:error, String.t()}
|
|
|
|
# webp is not compatible with exiftool at this time
|
|
def filter(%Pleroma.Upload{content_type: "image/webp"}), do: {:ok, :noop}
|
|
|
|
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, :filtered}
|
|
{error, 1} -> {:error, error}
|
|
end
|
|
rescue
|
|
_e in ErlangError ->
|
|
{:error, "exiftool command not found"}
|
|
end
|
|
end
|
|
|
|
def filter(_), do: {:ok, :noop}
|
|
end
|