Merge develop

[akkoma] / 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
index 39eed7af329c642cbdc268a7d515d4727e0012cf..fc456e4f4fc7c9358faaa05b41d3f1726867e2a8 100644 (file)
--- a/lib/pleroma/upload/filter/anonymize_filename.ex
+++ b/lib/pleroma/upload/filter/anonymize_filename.ex
@@ -1,3 +1,7 @@
+# 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.AnonymizeFilename do
   @moduledoc """
   Replaces the original filename with a pre-defined text or randomly generated string.
@@ -6,10 +10,21 @@ defmodule Pleroma.Upload.Filter.AnonymizeFilename do
   """
   @behaviour Pleroma.Upload.Filter
 
-  def filter(upload) do
-    extension = List.last(String.split(upload.name, "."))
-    name = Pleroma.Config.get([__MODULE__, :text], random(extension))
-    {:ok, %Pleroma.Upload{upload | name: name}}
+  alias Pleroma.Config
+  alias Pleroma.Upload
+
+  def filter(%Upload{name: name} = upload) do
+    extension = List.last(String.split(name, "."))
+    name = predefined_name(extension) || random(extension)
+    {:ok, :filtered, %Upload{upload | name: name}}
+  end
+
+  def filter(_), do: {:ok, :noop}
+
+  @spec predefined_name(String.t()) :: String.t() | nil
+  defp predefined_name(extension) do
+    with name when not is_nil(name) <- Config.get([__MODULE__, :text]),
+         do: String.replace(name, "{extension}", extension)
   end
 
   defp random(extension) do