HTTP Referer Field Not Appearing

["David M. Rosner" <da...@recommend-it.com>]

Hi All,

For some reason I can't get the Referer header field from any of my JSP 
pages. I'm using the following code:

String strReferringURL = request.getHeader( "referer" ) ;

I also tried looking at all of the headers in the request, but it doesn't 
look like this is including all of the headers:

for (Enumeration e = request.getHeaderNames() ; e.hasMoreElements() ;) {
          Log.getInstance().logError( (String) e.nextElement() );
}


Is this because my browser is not sending all of the fields (including 
referrer), or could it be the way that I have Tomcat configured?

Thanks!

-dave

Re: HTTP Referer Field Not Appearing

[Jeff Kilbride <je...@kilbride.com>]

Could be the capitalization. I use:

String referer = req.getHeader("Referer");

and it works with jdk1.3 and Tomcat 3.2.1.

Thanks,
--jeff

----- Original Message -----
From: "David M. Rosner" <da...@recommend-it.com>
To: <to...@jakarta.apache.org>
Sent: Tuesday, April 17, 2001 12:10 PM
Subject: HTTP Referer Field Not Appearing


> Hi All,
>
> For some reason I can't get the Referer header field from any of my JSP
> pages. I'm using the following code:
>
> String strReferringURL = request.getHeader( "referer" ) ;
>
> I also tried looking at all of the headers in the request, but it doesn't
> look like this is including all of the headers:
>
> for (Enumeration e = request.getHeaderNames() ; e.hasMoreElements() ;) {
>           Log.getInstance().logError( (String) e.nextElement() );
> }
>
>
> Is this because my browser is not sending all of the fields (including
> referrer), or could it be the way that I have Tomcat configured?
>
> Thanks!
>
> -dave
>

RE: HTTP Referer Field Not Appearing

[CPC Livelink Admin <cp...@fitzpatrick.cc>]

On 3.2.1 it works for me.  Make sure you are actually getting to the page
using a method which would generate a referrer. Just typing the link in the
browser address bar will not do it.  You need to make a dummy html file with
a link to your test page and click on the link to see it.

-----Original Message-----
From: David M. Rosner [mailto:dave@recommend-it.com]
Sent: Tuesday, April 17, 2001 3:10 PM
To: tomcat-user@jakarta.apache.org
Subject: HTTP Referer Field Not Appearing


Hi All,

For some reason I can't get the Referer header field from any of my JSP
pages. I'm using the following code:

String strReferringURL = request.getHeader( "referer" ) ;

I also tried looking at all of the headers in the request, but it doesn't
look like this is including all of the headers:

for (Enumeration e = request.getHeaderNames() ; e.hasMoreElements() ;) {
          Log.getInstance().logError( (String) e.nextElement() );
}


Is this because my browser is not sending all of the fields (including
referrer), or could it be the way that I have Tomcat configured?

Thanks!

-dave

Re: HTTP Referer Field Not Appearing

[Milt Epstein <me...@uiuc.edu>]

On Tue, 17 Apr 2001, David M. Rosner wrote:

> Hi All,
>
> For some reason I can't get the Referer header field from any of my JSP
> pages. I'm using the following code:
>
> String strReferringURL = request.getHeader( "referer" ) ;

Is that the only named you tried?  Capitalization and/or the exact
spelling/name might make a difference.  For example, try "Referer".
You might also check the archives to see what people have to say about
it.

> I also tried looking at all of the headers in the request, but it doesn't
> look like this is including all of the headers:
>
> for (Enumeration e = request.getHeaderNames() ; e.hasMoreElements() ;) {
>           Log.getInstance().logError( (String) e.nextElement() );
> }
>
> Is this because my browser is not sending all of the fields (including
> referrer), or could it be the way that I have Tomcat configured?

A long long time ago in a galaxy far far away (i.e. a different
servlet engine/container) I ran into the situation that getHeaderNames
only returned a hard-coded set of headers, not all headers actually in
the request (so I could getHeader a header that wasn't shown in
getHeaderNames) -- this was something that had to be done because of
the way this information was transferred from the web server to the
servlet engine/container.  I don't know if this is still the case.
But try alternatives for "referer" (and/or check the archives), and
see if that helps.

Milt Epstein
Research Programmer
Software/Systems Development Group
Computing and Communications Services Office (CCSO)
University of Illinois at Urbana-Champaign (UIUC)
mepstein@uiuc.edu