Not getting CGI parameters under FastCGI

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

Hi I am trying to set up FastCGI, and have run into problems. When I run the script the first time, it works fine. When I run it again, it keeps the same CGI parameters (and so always loads the same page). Simplified down, my script looks like this -

#!/usr/bin/perl 
 
use CGI; 
use FCGI; 
use Data::Dumper; 
 
my $count = 0; 
my $request = FCGI::Request(); 
 
while($request->Accept() >= 0) { 
  print("Content-type: text/html\r\n\r\n"); 
  print "Hello world - count = $count\n"; 
 
  my $q = new CGI; 
 
  print "Name = " . $q->param("name") ; 
  $count++; 
}
[download]

Running Apache 1.3.33 - relevant config is simple, just

FastCgiConfig -autoUpdate 
<Directory "/"> 
  Options FollowSymLinks +ExecCGI 
  AllowOverride None 
  AddHandler  fastcgi-script pl fpl fcgi 
</Directory>
[download]

So...how can I get the proper CGI params each time the page is loaded?

Thanks very much
Jay

Comment on Not getting CGI parameters under FastCGI Select or Download Code

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Re: Not getting CGI parameters under FastCGI by almut (Canon) on May 23, 2008 at 22:50 UTC
I can confirm that behaviour. Particularly weird is that if you print out `$ENV{QUERY_STRING}`, you can actually see the current proper values being passed in via the URL (GET request) — the `param()` method, however, continues to return the first-time value unchanged. It apparently doesn't reparse the available new input. It doesn't even help to explicitly call `$q->delete("name")` or `$q->delete_all()` at the end of the request cycle... Well, for the moment, I don't have a solution other than to suggest that you use CGI::Simple instead, which doesn't suffer from this problem (it's a CGI drop-in replacement for most things you typically need, i.e. you'd just do `my $q = new CGI::Simple;` and then call `$q->param(...)` etc. as usual).	[reply] [d/l] [select]
Re^2: Not getting CGI parameters under FastCGI by bakerjay (Initiate) on May 25, 2008 at 03:23 UTC
Hey, thanks - good to know I'm not just going crazy! Tried CGI::Simple, and as you say, it works fine. The application I'm trying to use this with uses CGI::Application, so might have to see if I can change that module to use CGI::Simple for now too...hmmm...I'll see how I go. Cheers Jay	[reply]
Re^3: Not getting CGI parameters under FastCGI by bakerjay (Initiate) on May 25, 2008 at 04:51 UTC
Actually, turns out my CGI::Application was something entirely different...in trying to reduce it to a test case, I found a new problem! Grr.. Anyway...main problem was that under CGI::Application::FastCGI, I was not releasing the database connection (was no need under normal CGI, it just released itself...), so then trying to recreate it failed miserably. So...thanks for your help, think I'm all sorted now. Jay	[reply]
Re: Not getting CGI parameters under FastCGI by Anonymous Monk on May 24, 2008 at 08:26 UTC
Upgrade to latest CGi.pm or try `use CGI::Fast;`	[reply] [d/l]
Re^2: Not getting CGI parameters under FastCGI by bakerjay (Initiate) on May 25, 2008 at 03:27 UTC
Tried upgrading CGI.pm (from v1.7601 to v1.9205), but didn't make any difference. Haven't tried CGI::Fast, but CGI::Simple (see above) seems to work fine. Thanks very much Jay	[reply]