[CGI.pm] Working with forms which uses strict DTD

Gangabass has asked for the wisdom of the Perl Monks concerning the following question:

Dear Monks,

I need to get params from HTML page which uses XHTML 1.1 Strict DTD. So there is no name attributes in input element but only id attributes.

<input type="text" id="password" />
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But then i try to get params for that attributes i got nothing :-(

#!/usr/bin/perl

use strict;
use warnings;
use CGI;

my $query = new CGI;

my @names = $query->param();
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So i get only empty @names array. And

my $pass = $query->param("password");
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did't work too.

But than i add to one input element name param i can see it in my cgi-script.

<input type="text" id="password" name="password" />
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Is there a way to work with id params in CGI.pm?

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Re: [CGI.pm] Working with forms which uses strict DTD by moritz (Cardinal) on May 15, 2008 at 11:40 UTC
I'm pretty sure that the browser is to blame, not CGI. Take a look at the raw POST request, for example with a sniffer like wireshark. If the browser doesn't send the params, there's now way CGI.pm can deliver you the values. Update I tested it with a HTML form which contains only ids and no names, and this is what went over the wire: OST / HTTP/1.1 Host: moritz User-Agent: Mozilla/5.0 (X11; U; Linux i686; de-DE; rv:1.8.1.14) Gecko +/20080404 Iceweasel/2.0.0.14 (Debian-2.0.0.14-0etch1) Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9 +,text/plain;q=0.8,image/png,/;q=0.5 Accept-Language: de-de,de;q=0.8,en-us;q=0.7,en;q=0.5,en-gb;q=0.3,nb;q= +0.2 Accept-Encoding: gzip,deflate Accept-Charset: UTF-8,* Keep-Alive: 300 Connection: keep-alive Referer: http://moritz/de/bar Content-Type: application/x-www-form-urlencoded Content-Length: 0 [download] You can see from teh Content-Length that no form data is actually submitted - bad luck for you. (Note that my test HTML form didn't have a xhtml strict DTD, so it might work for some browsers with that DTD. But I don't think it works with the broken browsers that >50% of all people use.)	[reply] [d/l]
Re^2: [CGI.pm] Working with forms which uses strict DTD by Gangabass (Vicar) on May 15, 2008 at 11:49 UTC
Hmmm, you are right! I test it in Opera 9.20 and Firefox 2.0.0.9 and i see that browser did't send data. So it's not a Perl problem. Thanks!	[reply]
Re: [CGI.pm] Working with forms which uses strict DTD by Fletch (Bishop) on May 15, 2008 at 12:36 UTC
Erm, I don't know where you (or more to the point, whomever's generating the HTML with the form) got the idea that XHTML 1.1 input elements can't have a name attribute since the table for form elements (reached from the XHTML 1.1 spec) shows that `name` looks to be a perfectly valid attribute. The cake is a lie. The cake is a lie. The cake is a lie.	[reply]