Hack your HP Printer in Perl

Yaakov hacked up a script that lets you change the PRINTER READY message. Link



Theo wrote a HTTP_AUTHORIZATION test. If you have mod_rewrite enabled on your Apache 2 server put the following files in some folder. If you go to index.cgi from your browser it will show the default login box. Just enter  some username / password and they will be shown on the page. Very cool Theo. Thanks.

This will help me create the first XSall tests without using mod_perl. If someone likes to create a Digest example please do? I like to test it and perhaps blog about it.


RewriteEngine on



use strict;
use warnings;

use CGI :cgi’;
use MIME::Base64;

binmode STDOUT;

my ($user, $password);

if(defined$auth and $auth =~ /^Basic\s+/) {
  $_ = decode_base64($’);
 ($user, $password) = split(:’); # What is the username or password contains a “:”?!

if(!defined($user) or $user eq ) {
 print Status: 401\r\n”;
 print WWW-Authenticate: Basic ;
 print realm=\”testers\@taletn.com\”\r\n;
 print Content-Type: text/plain\r\n”;
 print \r\n”;
 print 401\n”;
 exit 0;

print Content-Type: text/plain\r\n”;
print \r\n”;
print Authorization: $auth\n”;
print User: $user\n”;
print Password: $password\n”;
exit 0;

Access $ENV{’HTTP_AUTHORIZATION’} from Perl/CGI update

I wrote about the code from Munzli yesterday. It seems there where some copy and paste errors on his Blog. When I enabled mod_rewrite on my Apache 2 test PC Munzli’s code was not working even when I changed ‘o’ to ‘on’. The code that works for me is:

<ifmodule mod_rewrite.c>
 RewriteEngine on

You can also write RewriteRule .* – [E=HTTP_AUTHORIZATION:%{HTTP:AUTHORIZATION},L] to get it to work on any script. I still need to read about the PT or QSA you can put before the ,L.


It seems this change in the Apache 2 http.conf :

RewriteEngine o
RewriteRule ^scriptname(.*) scriptname$1 [E=HTTP_AUTHORIZATION:%{HTTP:AUTHORIZATION},PT,L]

will give me access to the $ENV{'HTTP_AUTHORIZATION'}Environment Variable in perl without using Mod-Perl. I still have to try it but this looks promising. Thanks Munzli. More here.

Put your money where your mouth is

Parrot Logo

Look at this blog post about parrot. I hope Tim will donate some money into The Perl Foundation.  It always seemed strange to me that O’Reilly didn’t support them with some large sum of money.