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From Bryan Basham <>
Subject Problem with user authentication w/ Tomcat v4.0 m4
Date Fri, 08 Dec 2000 22:55:37 GMT

    [I attempted to look this topic up on the alias archive, but
     after reading a few unrelated posts (search on "authentication"
     AND "document contains no data") and then various server not
     available attempts I gave up and decided to write to the group.]

I am trying to test user authentication with Tomcat v4.0 m4.
I have a *very* simple configuration:

 * an index page that links to a view-common page and a view-restricted page
 * the web.xml security constraint on the view-restricted page are set up as:

    <!-- Restricted Resources -->


        <description>A simple restricted-access user role.</description>

 * the server.xml configuration file is using the MemoryRealm
 * the tomcat-users.xml config. file has three users:
  <user name="tomcat" password="tacmot" roles="tomcat" />
  <user name="user1"  password="1resu"  roles="admin"  />
  <user name="user2"  password="2resu"  roles="tomcat,admin" />

So, I would expect that when I attempt to access the view-restricted.html
page that I get BASIC HTTP user auth. dialog box in my browser (Netscape
v4.75) and I do.  That's not the weird thing.  Everything works as expected
when I enter a user that has 'admin' role (e.g. 'user1'), *but* I am getting
the following Netscape error when I enter any other user (e.g. 'tomcat'):

   The document contains no data.
   Try again later, or contact the server's administrator.

This is not what I was expecting.  Is this the correct behavior?  This is
a problem because it (the browser) will not allow me to attempt to link
to that page again and re-authenticate.  Note: if I miss type a given
user's password, then the browser correctly asks me to retry; it is only
when I give the correct password for a registered user but not in the
corrrect role for the restricted page that I get the above problem.

BTW, I have attached a WAR file distribution of this WebApp.


| Bryan Basham                          | "You are not an isolated entity, but
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|  E-mail: Bryan.Basham@Sun.COM         |  humanity."
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|          MailStop: UBRM05-135         |  -- The Art of Living, Epictetus
|          Broomfield, CO 80021         |     (trans. Sharon Lebell)

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