Using Apache URL Rewriting with Struts?

[Jonathan Corbin <jo...@paytec.com>]

I'm using RewriteRule directives in my Apache config to redirect certain URLs 
to struts webapps, running under tomcat.

RewriteRule ^/my/webapp/url/(.*) /my-webapp/$1?paramIWantToAdd=31337
[QSA,PT]

This works fine, until it hits Struts code.  Struts seems to be hard coded to 
write server relative URLs.  So links on a page produced by struts have the 
wrong URL.

<form action="/my-webapp/action.do">

I would rather struts produce the following:

<form action="action.do">

so that the /my/webapp/url is preserved, and the user never sees /my-webapp.

Another related problem is with session cookies.  Struts writes session 
cookies at the app context (which I believe is what the servlet spec 
requires), so the JSESSIONID cookie is written for the /my-webapp context, 
and as a result, is not sent in on the HttpRequest when a user requests 
a /my/webapp/url page.

I've successfully gotten around both problems by hacking the struts code a 
little, and disabling session cookies (instead using session tracking through 
URL rewriting, putting jsessionid=blah on the end of every url).  I'd like to 
avoid using a modified version of struts, however, so I'm wondering if there 
is a better way to accomplish URL rewriting.

The real goal of all my modifications is to have each user of my application 
use a different url, so that I can easily control what version of my 
application they are using.

So user A goes to http://webserver/appForA
and user B goes to http://webserver/appForB
both get redirected to version 1 of my app at
http://webserver/appv1

Then, a few months down the road, I want to move user A to version 2, but keep 
user b at version 1.

So I change user A's redirect to point to http://webserver/appv2

Is there a better way to accomplish this?  Or am I stuck with Struts hacks for 
the time being?
-- 
Jonathan Corbin

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Re: Using Apache URL Rewriting with Struts?

[Robin Ericsson <lo...@localhost.nu>]

Jonathan Corbin wrote:

> Is there a better way to accomplish this?  Or am I stuck with Struts hacks for 
> the time being?

You could try rewriting the url in your appserver instead. Haven't got 
time to try it myself yet though :(.

http://tuckey.org/urlrewrite/


-- 
Robin Ericsson
http://robin.vill.ha.kuddkrig.nu/

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