From e9982c521b187136fd197d11a1e5d9b022da5e38 Mon Sep 17 00:00:00 2001 From: href Date: Fri, 30 Nov 2018 19:33:34 +0100 Subject: [PATCH] Upload filter: anonymize filename It replaces the original filename with a randomly generated string. --- lib/pleroma/upload/filter/anonymize_filename.ex | 10 ++++++++++ test/upload_test.exs | 14 ++++++++++++++ 2 files changed, 24 insertions(+) create mode 100644 lib/pleroma/upload/filter/anonymize_filename.ex diff --git a/lib/pleroma/upload/filter/anonymize_filename.ex b/lib/pleroma/upload/filter/anonymize_filename.ex new file mode 100644 index 000000000..a83e764e5 --- /dev/null +++ b/lib/pleroma/upload/filter/anonymize_filename.ex @@ -0,0 +1,10 @@ +defmodule Pleroma.Upload.Filter.AnonymizeFilename do + @moduledoc "Replaces the original filename with a randomly generated string." + @behaviour Pleroma.Upload.Filter + + def filter(upload) do + extension = List.last(String.split(upload.name, ".")) + string = Base.url_encode64(:crypto.strong_rand_bytes(10), padding: false) + {:ok, %Pleroma.Upload{upload | name: string <> "." <> extension}} + end +end diff --git a/test/upload_test.exs b/test/upload_test.exs index cfd86ddd0..b2ce755d2 100644 --- a/test/upload_test.exs +++ b/test/upload_test.exs @@ -134,5 +134,19 @@ test "don't modify filename of an unknown type" do {:ok, data} = Upload.store(file) assert data["name"] == "test.txt" end + + test "copies the file to the configured folder with anonymizing filename" do + File.cp!("test/fixtures/image.jpg", "test/fixtures/image_tmp.jpg") + + file = %Plug.Upload{ + content_type: "image/jpg", + path: Path.absname("test/fixtures/image_tmp.jpg"), + filename: "an [image.jpg" + } + + {:ok, data} = Upload.store(file, filters: [Pleroma.Upload.Filter.AnonymizeFilename]) + + refute data["name"] == "an [image.jpg" + end end end