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20020828 Wednesday August 28, 2002

Invalid Reference to Login Page. If you're using form-based authentication in your Tomcat Application - you might've seen this error before:

Apache Tomcat/4.0.4 - HTTP Status 400 - Invalid direct reference to form login page

type: Status report

message: Invalid direct reference to form login page

description: The request sent by the client was syntactically incorrect (Invalid direct reference to form login page).

Well, the good news is - I figured out how to get around this today. Basically, it's caused when someone tried to go directly to your <form-login-page> to login, rather than a protected resource.

I use my index.jsp (welcome-file-list) page to do a redirect to a projected resource:

index.jsp
--------
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>

<logic:redirect page="/do/mainMenu"/%gt;

So I merely added the error-page declaration below to my web.xml, and whalla - no more error message!

<error-page>
<!-- 400 code is from trying to go directly to login.jsp -->
    <error-code>400</error-code>
    <location>/index.jsp</location>
</error-page>

Posted in Java at Aug 28 2002, 06:07:51 AM MDT 5 Comments

Comments:

i also have the same problem of getting the error massege,, i have added the code <error-page> <!-- 400 code is from trying to go directly to login.jsp --> <error-code>400</error-code> <location>/index.jsp</location> </error-page> in my web.xml ,, but when i loggin with correct username and password i still get the same error page ,, i can,t figure it out ,, pls help

Posted by bug-bug on July 26, 2004 at 01:09 AM MDT #

If this doesn't help you - I don't know what will. You might try contacting support for your vendor's server. If it's Tomcat, I'd suggest contacting their mailing list.

Posted by Matt Raible on July 26, 2004 at 08:34 AM MDT #

OK guys, It is possible also to use this method for resolving our problem: To top login.jsp page you type: <% if(! session.isNew(){ session.sendRedirect("index.jsp") } %> Now you must to go web.xml file and type under login config(no important): <error-page> <error-code>400</error-code> <location>/index.jsp</location> </error-page>

Posted by vincenzo on January 12, 2007 at 03:57 AM MST #

I want to rectfier previous comment,because I have done a error to type the code line location. the location tag is followed: <location>login.jsp</location> Sorry Vincenzo

Posted by vincenzo on January 12, 2007 at 05:27 AM MST #

bla

Posted by 217.74.68.2 on May 21, 2008 at 04:25 AM MDT #

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Matt Raible is a Web Architecture Consultant specializing in open source frameworks.
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