mirror of https://akkoma.dev/AkkomaGang/akkoma.git
149 lines
4.4 KiB
Elixir
149 lines
4.4 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2021 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.StripMetadataTest do
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use Pleroma.DataCase
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alias Pleroma.Upload.Filter
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@tag :tmp_dir
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test "exiftool strip metadata strips GPS etc but preserves Orientation and ColorSpace by default",
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%{tmp_dir: tmp_dir} do
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assert Pleroma.Utils.command_available?("exiftool")
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tmpfile = Path.join(tmp_dir, "tmp.jpg")
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File.cp!(
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"test/fixtures/DSCN0010.jpg",
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tmpfile
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)
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upload = %Pleroma.Upload{
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name: "image_with_GPS_data.jpg",
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content_type: "image/jpeg",
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path: Path.absname("test/fixtures/DSCN0010.jpg"),
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tempfile: Path.absname(tmpfile)
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}
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assert Filter.Exiftool.StripMetadata.filter(upload) == {:ok, :filtered}
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exif_original = read_exif("test/fixtures/DSCN0010.jpg")
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exif_filtered = read_exif(tmpfile)
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refute exif_original == exif_filtered
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assert String.match?(exif_original, ~r/GPS/)
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refute String.match?(exif_filtered, ~r/GPS/)
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assert String.match?(exif_original, ~r/Camera Model Name/)
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refute String.match?(exif_filtered, ~r/Camera Model Name/)
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assert String.match?(exif_original, ~r/Orientation/)
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assert String.match?(exif_filtered, ~r/Orientation/)
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assert String.match?(exif_original, ~r/Color Space/)
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assert String.match?(exif_filtered, ~r/Color Space/)
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end
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# this is a nonsensical configuration, but it shouldn't explode
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@tag :tmp_dir
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test "exiftool strip metadata is a noop with empty purge list", %{tmp_dir: tmp_dir} do
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assert Pleroma.Utils.command_available?("exiftool")
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clear_config([Pleroma.Upload.Filter.Exiftool.StripMetadata, :purge], [])
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tmpfile = Path.join(tmp_dir, "tmp.jpg")
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File.cp!(
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"test/fixtures/DSCN0010.jpg",
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tmpfile
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)
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upload = %Pleroma.Upload{
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name: "image_with_GPS_data.jpg",
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content_type: "image/jpeg",
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path: Path.absname("test/fixtures/DSCN0010.jpg"),
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tempfile: Path.absname(tmpfile)
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}
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assert Filter.Exiftool.StripMetadata.filter(upload) == {:ok, :filtered}
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exif_original = read_exif("test/fixtures/DSCN0010.jpg")
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exif_filtered = read_exif(tmpfile)
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assert exif_original == exif_filtered
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end
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@tag :tmp_dir
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test "exiftool strip metadata works with empty preserve list", %{tmp_dir: tmp_dir} do
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assert Pleroma.Utils.command_available?("exiftool")
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clear_config([Pleroma.Upload.Filter.Exiftool.StripMetadata, :preserve], [])
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tmpfile = Path.join(tmp_dir, "tmp.jpg")
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File.cp!(
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"test/fixtures/DSCN0010.jpg",
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tmpfile
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)
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upload = %Pleroma.Upload{
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name: "image_with_GPS_data.jpg",
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content_type: "image/jpeg",
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path: Path.absname("test/fixtures/DSCN0010.jpg"),
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tempfile: Path.absname(tmpfile)
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}
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write_exif(["-ImageDescription=Trees and Houses", "-Orientation=1", tmpfile])
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exif_extended = read_exif(tmpfile)
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assert String.match?(exif_extended, ~r/Image Description[ \t]*:[ \t]*Trees and Houses/)
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assert String.match?(exif_extended, ~r/Orientation/)
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assert Filter.Exiftool.StripMetadata.filter(upload) == {:ok, :filtered}
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exif_original = read_exif("test/fixtures/DSCN0010.jpg")
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exif_filtered = read_exif(tmpfile)
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refute exif_original == exif_filtered
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refute exif_extended == exif_filtered
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assert String.match?(exif_original, ~r/GPS/)
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refute String.match?(exif_filtered, ~r/GPS/)
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refute String.match?(exif_filtered, ~r/Image Description/)
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refute String.match?(exif_filtered, ~r/Orientation/)
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end
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test "verify webp files are skipped" do
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upload = %Pleroma.Upload{
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name: "sample.webp",
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content_type: "image/webp"
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}
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assert Filter.Exiftool.StripMetadata.filter(upload) == {:ok, :noop}
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end
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test "verify svg files are skipped" do
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upload = %Pleroma.Upload{
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name: "sample.svg",
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content_type: "image/svg+xml"
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}
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assert Filter.Exiftool.StripMetadata.filter(upload) == {:ok, :noop}
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end
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defp read_exif(file) do
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# time and file path tags cause mismatches even for byte-identical files
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{exif_data, 0} =
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System.cmd("exiftool", [
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"-x",
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"Time:All",
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"-x",
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"Directory",
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"-x",
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"FileName",
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"-x",
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"FileSize",
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file
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])
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exif_data
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end
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defp write_exif(args) do
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{_response, 0} = System.cmd("exiftool", ["-ignoreMinorErrors", "-overwrite_original" | args])
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end
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end
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