If you have access to the attic above the light fixture in the foyer
you may be able to
do what I have done. I moved the electric box a few inches over in the
ceiling from the attic, and lowered a rope that is used to pull up my
light fixture to the ceiling. The fixture's chain is fastened in the
attic using a thin pipe put into a link in the chain that then rests
between the rafters. Nice and secure. Finally I connected the wires to
the electric box. The hole in the ceiling is covered by attaching the
fixture plate cover to the chain before I pulled it up, so that it
ended up flush with the ceiling, covering the hole. When a light needs
to be changed or the fixture needs to be cleaned I simpley disconnect
and lower.