1 Reply Latest reply on Feb 21, 2006 2:45 AM by Himadri Saha

    getUserPrincipal returns null in web application

    Himadri Saha Newbie

      I am using a custom LoginModule whose commit() method looks like this:

      Set ssoUserPrincipals = subject.getPrincipals(SSOUser.class);
      Group callerPrincipal = new SimpleGroup("CallerPrincipal");
      Iterator j = ssoUserPrincipals.iterator();
      if (j.hasNext()) {
      Principal user = (Principal) j.next();
      callerPrincipal.addMember(user);
      }

      subject.getPrincipals().add(callerPrincipal);

      SSOUser is the custom principal. This LoginModule is invoked by a Tomcat valve to perform authentication.

      My web.xml snippet looks like this:
      <servlet-mapping>
      <servlet-name>SSOServlet</servlet-name>
      <url-pattern>/SSOServlet</url-pattern>
      </servlet-mapping>
      <security-constraint>
      <web-resource-collection>
      <web-resource-name>protected-resources</web-resource-name>
      <url-pattern>/SSO*</url-pattern>
      <http-method>GET</http-method>
      <http-method>POST</http-method>
      </web-resource-collection>
      </security-constraint>

      <login-config>
      <auth-method>BASIC</auth-method>
      </login-config>

      The HttpServletRequest.getUserPrincipal() in the doGet() of ..../SSOServlet returns null.

      Am i missing something? Pls help.

      Thanks
      Himadri