accessing files external to webapp 2004-01-26 - By Lorrin Nelson
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Hi - I have what I think is a security permission problem, but I'm not sure.
I'm migrating an existing webapp from SuSE/Tomcat 4.0 to Debian/Tomcat
4.1. The SuSE box didn't have a security manager, the Debian one does.
In one of the business logic classes, I need to determine if a file
external to the webapp exists or not. The check (in a class named
PickManager.java) is
if (PickManager.class.getClassLoader().getResource(path) == null)
Using that technique, I can determine if files exist up to the webapps'
context path, but no futher. Since it worked fine on the SuSE box, I'm
assuming it's a permission problem. However, in an act of desperation I
went so far as to add
permission java.security.AllPermission  ;
to my grant block for all webapps in
/etc/tomcat4/policy.d/04webapps.policy, but still no luck.
The file in question is world-readable, so I don't think its a unix file
permission problem clouding the picture.
Anyone have an what might be going on? Is there a diff't technique I
should use to check for a files' existence?
Thanks!
-Lorrin
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