SCRIPT WORKS WITH IE BUT NOT NETSCAPE!!!

elisabeth · October 4th, 2004, 08:05 AM

Hello,
I have a very easy authentication script that works fine... but when there are errors (like incorrect user, config file does not exist...), it only works with IE and not with NETSCAPE!!!.
It is driving me crasy!!!
Help please!!
Here is part of the code (I have simplidfied it) and I have put traces so you can see why it does not work with Netscape.

With Explorer: I get the following alerts
Entering errorConfig
error is 2
exception is EXCEPTION

With Netscape: I only get;
Entering errorConfig
....
WHY!!!!
<html>
<head>
<title> Authentication Engine </title>
<script language=JavaScript>
javascript:window.history.forward(1);


</script>
</head>
<%@page errorPage="errorPage.jsp"%>
<%@page language="java" %>
<%@page import="java.util.*" %>
<%@page import="java.io.*" %>
<%@ page import="javax.servlet.*, javax.servlet.http.*"%>
<%@ page import="javax.servlet.http.HttpServletRequest"%>
<%
int retCode=2;
System.out.println("login.jsp retCode="+retCode);
if (retCode != 0)
{
  // Config error => Goes to login.jsp
  //-----------------------------------
%>
  <form name=form2 method="post">
   <input type=hidden name="error" value=<%=retCode%>>
   <input type=hidden name="ex" value="Exception">
  </form>
  <script language="javaScript">errorConfig();</script>
<%
}

// Read password and uid
//----------------------
System.out.println("Read uid and password");
String uid=request.getParameter("uid");
String password=request.getParameter("password");
if ((uid != null) && (!uid.equals("")) &&
    (password != null) && (!password.equals("")))
{
  String[] res={"1", "NOT AUTHENTICATED"};
  System.out.println("authenticate.jsp - aut="+res[0]);
  if (!res[0].equals("0"))
  {
    // NOt authenticated ==> Goes to login.jsp
    //-----------------------------------------
%>
    <form method="post" name=form1>
       <input type=hidden name="error" value=<%=res[0]%>>
       <input type=hidden name="message" value="<%=res[1]%>">
    </form>
    <script language="javaScript">result();</script>
<%
  }
   // Go to menu.jsp
  //----------------
%>
   <script language="javaScript">page_menu();</script>
<%
}

// Go back to login.jsp (empty uid/password)
//-----------------------------------------
%>
<script language="javaScript">page_login();</script>
</html>

Snib · October 4th, 2004, 05:00 PM

This line:
javascript:window.history.forward(1);

should be, I think:

window.history.forward(1);

-Snib <><
http://www.snibworks.com
There are only two stupid questions: the one you don't ask, and the one you ask more than once ;)

elisabeth · October 5th, 2004, 02:52 AM

Well, I changed it just in case but the problem is still there. I enter an incorrect username:
- Explorer: goes to result() and fires the alert then goes to login.jsp
- Netscape: goes to result() and does not fire the alert, then goes to login.jsp. It is as if the error or the message variables were not recognized by Netscape (putting an alert just after the error variable is not fired).

Ulrich · October 5th, 2004, 12:22 PM

Try using "Get" as your form method.

The "Get" method sends the input as an environment variable, whereas "Postt" sends it as a standard input string. Since your value is a JSP variable you may need to use "Get" rather than "Post".

I am not sure why this would work in IE and not Netscape, however.

Snib · October 5th, 2004, 03:08 PM

Ulrich I believe that is irrelevant and incorrect. JSP can retrieve POST values.

elisabeth,

What does the pop-up in Explorer say? I bet it's only one word. You need to assign HTML attribute values surrounded in quotes, as it complies with the standards and should solve your problem.

So this...

<input type=hidden name="error" value=<%=res[0]%>>

...should be...

<input type='hidden' name='error' value='<%=res[0]%>'/>

Try it :-)

-Snib <><
http://www.snibworks.com
There are only two stupid questions: the one you don't ask, and the one you ask more than once ;)

elisabeth · October 6th, 2004, 03:25 AM

I finally found what the problem was. ..... the <body> tag was missing! Explorer did not care about it but Netscape could not recognize the forms!!!!

Problem solved. Thank you all for your inputs.