Win a copy of TDD for a Shopping Website LiveProject this week in the Testing forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Paul Clapham
  • Ron McLeod
  • Jeanne Boyarsky
  • Tim Cooke
Sheriffs:
  • Liutauras Vilda
  • paul wheaton
  • Henry Wong
Saloon Keepers:
  • Tim Moores
  • Tim Holloway
  • Stephan van Hulst
  • Carey Brown
  • Frits Walraven
Bartenders:
  • Piet Souris
  • Himai Minh

Problems with getRemoteUser()

 
Ranch Hand
Posts: 64
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi,
I am trying to get the windows userid from the user when the go to my jsp. I have tried getRemoteUser but I keep getting null. Any sugestions/ideas? Here is my jsp code:

<%@ page import="java.util.*,java.sql.*, java.io.*, java.text.*, javax.servlet.http.*, javax.servlet" %>

<%
String userid=request.getRemoteUser();
out.println(userid);
%>
 
Sheriff
Posts: 13411
Firefox Browser VI Editor Redhat
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
How are you authenticating users?
 
m brymer
Ranch Hand
Posts: 64
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I have written a servlet:


import java.io.*;
import java.security.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class Snoop extends HttpServlet {

public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/html");
PrintWriter out = res.getWriter();

out.println("<HTML><HEAD><TITLE>AuthenticationSnoop</TITLE></HEAD><BODY>");
out.println("<H1>UserID</H1>");
out.println("<PRE>");
out.println("User Name: " + req.getRemoteUser());
String name = (req.getUserPrincipal() == null) ?
null : req.getUserPrincipal().getName();
out.println("Principal Name: " + name);
out.println("Authentication Type: " + req.getAuthType());
out.println("</PRE>");
out.println("</BODY></HTML>");
}
}

Am I missing something here?
 
m brymer
Ranch Hand
Posts: 64
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Can anyone look at my servlet and tell me what I a might be missing? I continue to get "null" for my output.
Thanks!
 
Sheriff
Posts: 67634
173
Mac Mac OS X IntelliJ IDE jQuery TypeScript Java iOS
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
If you aren't going to answer Ben's question, how can anyone help you?
 
m brymer
Ranch Hand
Posts: 64
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I am not sure what you mean...I am trying to get the windows userid, since it is an intranet the windows userid would already be authenticated, do I have to do this a second time in my servlet?
 
Bear Bibeault
Sheriff
Posts: 67634
173
Mac Mac OS X IntelliJ IDE jQuery TypeScript Java iOS
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
The point is that getRemoteUser will return the userid of the browser-authenticated user. It has nothing to do with the Windows (or any other OS) login.
 
m brymer
Ranch Hand
Posts: 64
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Okay, so if someone is logged into the company intranet and they click on my jsp they have to be authenticated again?
 
Ben Souther
Sheriff
Posts: 13411
Firefox Browser VI Editor Redhat
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Yes, if you want to use getRemoteUser()

Take a look at the documentation for JNDI resources:
http://jakarta.apache.org/tomcat/tomcat-5.5-doc/jndi-resources-howto.html

I know it's also possible (but I've never done it) via JNDI to use windows authentication with Tomcat.
Google would be more help than I would for that.
 
m brymer
Ranch Hand
Posts: 64
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Thanks, I will give it a whirl!
 
We noticed he had no friends. So we gave him this tiny ad:
Free, earth friendly heat - from the CodeRanch trailboss
https://www.kickstarter.com/projects/paulwheaton/free-heat
reply
    Bookmark Topic Watch Topic
  • New Topic