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From Vincent Veyron <vv.li...@wanadoo.fr>
Subject Re: Modperl handler status code. Handler invoked two times per request.
Date Thu, 12 Jul 2012 13:59:04 GMT
Le lundi 02 juillet 2012 à 03:50 +0400, reisub@ya.ru a écrit :
> Hello.

Hi,


>  So, whats wrong?
> 

Dude, a lot of things... 

Not sure I can catch them all, but since nobody is tackling it, see some
comments below. 

>  I've found unexpected behavior of modperl handler. If handler return
>  Apache2::Const::HTTP_OK status all is ok. 

? I get an error code with this, after the 200 OK, so I'm surprised it
works for you

> But other HTTP_*
>  status code (tested with Apache2::Const::HTTP_NOT_FOUND;
>  Apache2::Const::HTTP_FORBIDDEN and Apache2::Const::SERVER_ERROR)
>  invoke handler again.
> 

I don't see this

>  Configuration:
> 
> <VirtualHost *:80>
>     DocumentRoot "/srv/http/err/htdocs"
>     ServerName err.localhost
>     SetHandler 		perl-script
> 

I think the following should be PerlModule instead of PerlRequire?

>     PerlRequire /srv/http/err/htdocs/Main.pm

I would wrap the following into a Location directive

>     PerlResponseHandler	XYZ::Main


> </VirtualHost>
> 
>  Module:
>    package XYZ::Main;
> 
>    use strict;

the following line is unneeded

>    use APR::Table;

the following line is unneeded

>    use Apache2::RequestRec ();

the following line is unneeded

>    use Apache2::RequestIO ();

this one is needed

>    use Apache2::Const -compile => qw/:common :http/;

the following line is unneeded

>    use CGI;
> 
>    sub handler{
>      `echo "call" >>/tmp/inv`;

this works

>      return Apache2::Const::OK;

the following lines won't happen after the first return

>      return Apache2::Const::HTTP_OK;
>      return Apache2::Const::HTTP_NOT_FOUND;
>    }
> 
>   1;
> 
>  Mainly, in some cases I want to show Apache2
>  default pages (like for HTTP_NOF_FOUND and HTTP_SERVER_ERROR) and
>  don't know right way to implement that. It seems that similar
>  Apache2::Const::HTTP* status code from handler is a good way but now I
>  have to use method-handler technique
>  (https://perl.apache.org/docs/2.0/user/coding/coding.html#Method_Handlers)
>  to avoid second handler invocations.

It seems to me like you are copy/pasting code and hoping it will work.

I suggest you invest some time in the documentation first, like reading
this throughout :

https://perl.apache.org/docs/2.0/user/index.html

It's worth it.


-- 
Vincent Veyron
http://vincentveyron.com/
Logiciels de gestion des sinistres assurances et des dossiers contentieux pour le service
juridique


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