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Calling a perl script and passing parameters from html

by HannibalRex (Initiate)
on Nov 16, 2012 at 21:36 UTC ( #1004247=perlquestion: print w/ replies, xml ) Need Help??
HannibalRex has asked for the wisdom of the Perl Monks concerning the following question:

So I have a perl script that someone else wrote, accepts command line parameters to run, I'm trying to "web enable" this script. The way I think of it is a form submit/post to the script, and the script accepts the values passed to it from entries on the web page. For example, this script creates a given number of random numbers based on a seed, so on the cmd lind it looks like ./numgen.pl --numcards=10000 --seed=25 --blurb="10000 cards for JoMama" Can someone point me to a reference on how to do this? I've been told it would be best to do it in Python and use a system call, which I honestly have no idea how to do. So, I'd really like to know how to do this, not just hack it. I'm really needing a push in how to do this, and where a good reference may be located. Everything I keep googling just seems too complicated, or not really what I am looking for. Is it not common to use a web interface to do sys or db activities through perl? Sorry, I'm an old C guy, so I don't really understand the web parts of perl and or python yet. TIA!

Comment on Calling a perl script and passing parameters from html
Re: Calling a perl script and passing parameters from html
by Anonymous Monk on Nov 17, 2012 at 00:39 UTC
Re: Calling a perl script and passing parameters from html
by Jenda (Abbot) on Nov 17, 2012 at 17:26 UTC

    If the script doesn't take too long to execute and you do not need to process it's results then a wrapper script like this should be enough to get you up and running:

    use strict; use CGI; use CGI; my $q = new CGI; @ARGV = (); foreach ($q->param()) { $value = $q->param($_); $value =~ s/"/\\"/g; push @ARGV, "--" . $_ . '="' . $value . '"'; } do 'path/to/the/script.pl';

    All it does is it moves the parameters from the querystring or post into the @ARGV array (array of script parameters) in the format required by the script and then executes the script without starting a new process.

    As long as the script prints its results to STDOUT they should be sent to the client browser.

    Jenda
    Enoch was right!
    Enjoy the last years of Rome.

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