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> Hello List,
>
> The following is my requirement :
> I am storing User information (User name, password, group information)
> in Netscape Directory Server 4.0.
>
> I now want to authenticate and authorize the user for my application
> using the information in LDAP Directory.
>
> How can my servlets talk to LDAP directory ?
>
> I am a newbie here and any information from you guys
> would be extremely helpful. Resources to this are also welcome.
>
Try Sun's JNDI (Java Naming and Directory Interface)
http://java.sun.com/products/jndi/
Read the tutorial...
http://java.sun.com/products/jndi/tutorial/
I'm doing very similar work. Who are you? What's your project?
(suggest we take this discussion off the list)
here's a sample example code...
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.naming.*;
import javax.naming.directory.*;
import java.util.Hashtable;
import java.util.Properties;
public class PowerUnits extends HttpServlet {
public void service (HttpServletRequest request, HttpServletResponse
response)
throws ServletException, IOException
{
// set content type and other response header fields first
response.setContentType("text/html");
// get the communication channel with the requesting client
PrintWriter out = response.getWriter();
// get the server identification
String server =
getServletConfig().getServletContext().getServerInfo();
// write the data
out.println("<HTML><HEAD>");
out.println("<pre>");
String client_cn = "Good User";
String base_dn = "ou=Users,o=CAI Example,c=US";
String ldap_host = "localhost";
String ldap_port = "389";
out.println("<h1>Directory Data</h1>");
// Set up environment for creating initial context
Hashtable env = new Hashtable(11);
env.put(Context.INITIAL_CONTEXT_FACTORY,
"com.sun.jndi.ldap.LdapCtxFactory");
// set the server details
env.put(Context.PROVIDER_URL,
"ldap://" + ldap_host + ":" + ldap_port + "/" +
base_dn);
// authentication type
env.put(Context.SECURITY_AUTHENTICATION, "none");
// enable tracing
env.put("com.sun.naming.ldap.trace.ber", System.err);
try
{
// Create initial context
DirContext ctx = new InitialDirContext(env);
// retreive an object from the directory
Attributes answer = ctx.getAttributes("cn=" +
client_cn);
// print the attributes
for (NamingEnumeration ae = answer.getAll();
ae.hasMore();)
{
Attribute attr = (Attribute)ae.next();
out.println("attribute: " + attr.getID());
// print each value
for (NamingEnumeration e = attr.getAll();
e.hasMore();
out.println("value: " +
e.next()))
;
}
// Close the context when we're done
ctx.close();
}
catch (NamingException e)
{
System.out.println("Connection failed!");
e.printStackTrace();
}
out.println("</pre>");
out.println("</BODY></HTML>");
}
}
--
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