radical hacks HTTP-LIB User Authentication hack sent in this excellent hack!
I added a few lines of code to "http-lib.pl" which allows for Basic authentication to the GET method. You can call this by passing in two [optional] arguments, $login and $password, at the end of the normal HTTPGet arguments. If neither is passed then no authentication is used.
Note that the authentication addition requires Perl5, and the MIME::Base64 module.
Here is the code.