I'm confused at the purpose of this code. There's nothing inherently dangerous in any character you can get from a browser via the param subroutine/method. Why do you think you need to "cleanse" them?

And on the output, escapeHTML should take care of any hand generated items, and the HTML generation subroutines should take care of the rest.

What exactly is it that you think you need to "clean"?

As an example, suppose I have a filename in $dangerous that could contain any possible character in the Unix pathname, and I want to both show its name, and generate a link to it. All I have to do is this: 

use CGI qw(a escapeHTML); # amongst other things
...
print a({-href => $dangerous}, escapeHTML($dangerous));

[download]
No extra code required.

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.

In reply to Re: CGI param cleansing by merlyn
in thread CGI param cleansing by ruzam

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