rsharma51 at sapient
Jun 22, 2012, 12:55 AM
Post #5 of 5
Thanks All, using PerlOutputFilterHandler gives me the desired result for the pages in htdocs for the <Location ...> specification..
[using the inputs from this group and http://www.gossamer-threads.com/lists/modperl/modperl/104437].
Now I am noting that my earlier integration of Apache with JBoss where I am redirecting based on certain paths is not working. If I remove the output filter the jboss page shows, but when I put it (httpd.conf) the display of dynamic content from Jboss stops. E.g. in mod-jk.conf:
JkMount /jspweb/* node1
What am I missing here? Many thanks for your inputs in advance!
From: Dr James A Smith [mailto:js5 [at] sanger]
Sent: Saturday, June 16, 2012 10:54 PM
To: Rommel Sharma
Cc: mod_perl list
Subject: Re: Intercepting and modifying response
On 16/06/2012 14:22, Rommel Sharma wrote:
> Hi André,
> Thanks for the reply. Details are below.
> Before that would like to mention - I am new to mod_perl usage and the setup is only on my dev machine where I am testing the scenario described.
> Therefore looking for the right directions from the experienced users in this group. Sample code/reference to such would help very much.
>> What is the connector module used between Apache httpd and JBOSS ? How is it configured ?
>> (more explicitly, how in the Apache httpd configuration, do you specify which requests that have to be passed to JBOSS, an which not ?)
> Using mod_jk setup. (JkMount).
>> Define "adverse effects" ? mod_perl may allow you to modify the JBOSS response, if it is possible to insert a mod_perl
>> handler in the right place to modify the response coming from JBOSS, before it is returned to the client.
> By adverse effects I meant if I write a perl program that receives the response from the jboss server, that does some pattern matching and replaces a few strings from each response will it slow down the server significantly? Am I better off handling this in a servlet filter?
> On mod_perl - some pointers to get started with such request intercepting will be great as I have not worked with it before.
> Many thanks well in advance for the much needed inputs!
> -----Original Message-----
> From: André Warnier [mailto:aw [at] ice-sa]
> Sent: Friday, June 15, 2012 8:19 PM
> To: mod_perl list
> Subject: Re: Intercepting and modifying response
> Rommel Sharma wrote:
> > All,
> > I need to intercept and modify the response that is coming from JBOSS to the Apache Web
> (httpd) server and being returned to the client.
> What is the connector module used between Apache httpd and JBOSS ? How is it configured ?
> (more explicitly, how in the Apache httpd configuration, do you specify which requests
> that have to be passed to JBOSS, an which not ?)
> > Planning to use perl to edit the response using mod_perl. Does mod_perl allow this with
> no adverse effects?
> Define "adverse effects" ?
> mod_perl may allow you to modify the JBOSS reponse, if it is possible to insert a mod_perl
> handler in the right place to modify the response coming from JBOSS, before it is returned
> to the client.
> If yes, then how do we go about it?
> Maybe by remembering first that you are on a support list manned by volunteers, where
> being gracious helps getting answers.
As others have pointed out this works as you are using mod_jk, look at
OutputFilters - we use output filters to "wrap/template" a number of our
By using this method we are able to wrap, static content, output from
other mod_perl handlers, php scripts, ruby scripts, output from others
servers - tomcat servers behind mod_jk other perl servers using
mod_proxy... All with a common method... not seen any "adverse" effects