perl-File-Save-Home (Place file safely under user home directory).

File::Save::Home - Place file safely under user home directory.

In the course of deploying an application on another user's system,
you sometimes need to place a file in or underneath that user's home
directory. Can you do so safely?

This Perl extension provides several functions which try to determine
whether you can, indeed, safely create directories and files underneath
a user's home directory.

Among other things, if you are placing a file in such a location only
temporarily -- say, for testing purposes -- you can temporarily hide any
already existing file with the same name and restore it to its original
name and timestamps when you are done.
