Mailing-List: contact users-help@httpd.apache.org; run by ezmlm
Precedence: bulk
Reply-To: users@httpd.apache.org
Received-SPF: pass (nike.apache.org: local policy)
Message-ID: <505C50B4.9010307@bulb.hr>
Date: Fri, 21 Sep 2012 13:34:12 +0200
From: Ivan Prostran <ivan.prostran@bulb.hr>
User-Agent: Mozilla/5.0 (X11; Linux x86_64;
 rv:15.0) Gecko/20120828 Thunderbird/15.0
MIME-Version: 1.0
To: users@httpd.apache.org
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Subject: [users@httpd] Input filters that alter content-length

Hi,

I have the following scenario :

- Apache/2.2.19 (Solaris 10 SPARC)

      SetInputFilter alterxmlbody (AP_FTYPE_RESOURCE)
      SetHandler weblogic-handler


The handler forwards requests to multiple weblogic servers
and the filter itself analyzes and/or changes the POST data
in a way that the length of the incoming request may be changed.

The question is :

What is the proper and legitimate way to deal with this situation?

Should the input filter set the new CL value in "headers_in" before
returning from the callback, or just remove it from the list?


apr_off_t length;
apr_brigade_length     (bb,1,&length);
apr_table_setn(f->r->headers_in, "Content-Length", 
apr_off_t_toa(f->r->pool, length));

Unfortunately, this approach breaks the pipeline because sometimes
the filter needs to buffer data over more than one call.

or

apr_table_unset(f->r->headers_in, "Content-Length");


Best regards
Ivan

---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
For additional commands, e-mail: users-help@httpd.apache.org