Interactive signing via the .uno:Signature command parameters were
possible, but headless PDF export had no similar parameters.
The primary difference is that the interactive signing works with the
sign certificate of the SfxViewShell, while PDF export has its own
vcl::PDFWriter::PDFWriterContext::SignCertificate.
Fix the problem similar to what commit
80723fccbb (filter: allow PDF export to
sign from the cmdline, 2022-02-03) did, but here we don't refer to an
already configured sign certificate by name, we take the sign cert/key
from parameters instead.
Test this in the NSS case where it's known to work, ignore the mscng
signing case for now.
Change-Id: Ib0c171736d2554fb3678ae4b8842541c43f9f3dd
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/175644
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Miklos Vajna
1e75155c69