httpd-modules-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Ben Noordhuis <i...@bnoordhuis.nl>
Subject Re: Input filters that alter content-length
Date Tue, 25 Sep 2012 12:04:22 GMT
On Tue, Sep 25, 2012 at 1:15 PM, Ivan Prostran <ivan.prostran@bulb.hr> wrote:
> 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, but I do not
> consider this as a problem.
>
> or
>
> apr_table_unset(f->r->headers_in, "Content-Length");

You didn't tell how your handler works (how it forwards the request)
but removing the Content-Length header is probably easiest. Does the
upstream server understand HTTP/1.1 or HTTP/1.0 with a TE header?

Mime
View raw message