Merge branch 'release/2.1.0' into 'stable'v2.1.0

Release/2.1.0

See merge request pleroma/pleroma!2927

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