+ name =
+ try do
+ {{"content-disposition", content_disposition_string}, _} =
+ List.keytake(headers, "content-disposition", 0)
+
+ [name | _] =
+ Regex.run(
+ ~r/filename="((?:[^"\\]|\\.)*)"/u,
+ content_disposition_string || "",
+ capture: :all_but_first
+ )
+
+ name
+ rescue
+ MatchError -> Keyword.get(opts, :attachment_name, "attachment")
+ end
+
+ disposition = "attachment; filename=\"#{name}\""
+