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From "Alexander Kandzior" <a.kandz...@alkacon.de>
Subject Issue with pathInfo in complex include() scenarios
Date Tue, 02 Apr 2002 14:06:06 GMT
Hi,

I have discovered a strange behaviour in Tomcat 4.0.3.

When using inclusion like 

requestDispatcher().include() in servlets or 
<jsp:include page="..." /> in JSP pages, 

pathInfo parameters don't work as expected, and should probably not be
used.

This problem appears when you create a servlet that uses the pathInfo
part of the request to include another resource from the context,
especially a JSP page. 

Example: 
You have a context "test" and a servlet "test02" that is called like
"/test/test02/somefile". Then in "test02" you use the pathInfo
"/somefile" to do something like 
requestDispatcher("/test02/somefile").include(request, response).
Now let's say "somefile" can be "some.jsp" and "test.html", which are
pages in the context.
If in "some.jsp" there is a statement <jsp:include
page="/test02/test.html">, and you call "/test/test02/some.jsp" in the
browser, inclusion won't work, and you will even run in an ugly endless
inclusion loop. HOWEVER if you change from using pathInfo to "old style"
parameters (like /test/test02?file=some.jsp" and  <jsp:include
page="test02?file=test.html"> it works fine. However, I see no reason
for the pathInfo parameter case not working as well.

I have set up a bug in the Tomcat Bugzilla database and created a small
war archive (http://www.sysmics.de/download/test.war) that illustrates
the problem and gives plenty of cases. Please have a look at the
"/index.html" page for an overview.

It would be nice if someone could confirm if this is really a bug in
Tomcat or not. 

Best Regards,
Alex.

-------------------

Alexander Kandzior

Alkacon GbR
Im Meisengrund 4a
50996 Koeln, DE

Tel: +49 (0)2236 963491
Fax: +49 (0)2236 963492
Email: a.kandzior@alkacon.de

http://www.alkacon.de




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