mod_http_file_share: Use alternate syntax for filename in Content-Disposition

The Lua string.format %q doesn't behave correctly for all characters
that should be escaped in a quoted-string. And who knows what effects
higher Unicode might have here.

Applying percent-encoding of filenames seems like the safest way to deal
with filenames, as well as being easier than implementing the actual
quoted-string transform, which seems complicated and I'm not even sure
it covers every possible character.

Filenames can safely be assumed to be UTF-8 since they are passed in an
attribute in the query without any escaping.

0 files changed, 0 insertions, 0 deletions