url rewrite filter

[Miran Cvenkel]

if (url.equals("sourceUrl")
{
   ((HttpServletRequest) request).getRequestDispatcher("targeturl").forward(request, response);
...

Is there a way ro intercept what was sourceURL, when arriwing to target url ?

Referer does not work.

[Rob Spoor]

HttpServletRequest has several methods to get the original URL the client requested. This includes getRequestURI(), getPathInfo() and getQueryString().

[Paul Clapham]

If "sourceURL" means "the URL which was used to make this request", then the request object has methods to get that. I don't think there's a method which gets you the whole thing all at once, but (I'm not looking at the documentation right now) I recall there is getHost() and getPort(), and there are others to get the other parts of the URL.

[Miran Cvenkel]

So, no luck with any of that , but I took a peak at request object at debugger and it contains array naned specialAttributes with 9 elements , of which 5 and 7 contains inf on 'sourceURL' thing.

How to get that out, there is no request,getSpecialAttribute or something like that ?

[Bear Bibeault]

Miran Cvenkel wrote:So, no luck with any of that , but I took a peak at request object at debugger

Screw the debugger, look at the javadoc!

[Miran Cvenkel]

Figured it out, thanks for help.

 for(Enumeration e = request.getAttributeNames(); e.hasMoreElements(); ){
                String attName = (String)e.nextElement();
                String attValue = request.getAttribute(attName).toString();
                out.println("<br/>" + attName);
                out.println("<br/>" + attValue);
        }

[Bear Bibeault]

What does that have to do with the URL?

[Miran Cvenkel]

one of those is 'javax.servlet.forward.request_uri'

[Pete Nelson]

Rob Spoor wrote:HttpServletRequest has several methods to get the original URL the client requested. This includes getRequestURI(), getPathInfo() and getQueryString().

The first reply gave you your answer. Why dig through attribute values, when you can simply call request.getRequestURI() ?

[Miran Cvenkel]

because that returns 'targetUrl' instead of 'sourceURL' which I'm after.

[Victor M. Pereira]

Miran Cvenkel wrote:Figured it out, thanks for help.

 for(Enumeration e = request.getAttributeNames(); e.hasMoreElements(); ){
                String attName = (String)e.nextElement();
                String attValue = request.getAttribute(attName).toString();
                out.println("<br/>" + attName);
                out.println("<br/>" + attValue);
        }

This is interesting, but wouldn't this discovery mean that it only applies to your developing server implementation of HttpServletRequest?

My work around would be sending a cookie that has the last sourceURL. A Filter could do this; however, if he disabled cookies I would be in a big problem.