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package com.sun.enterprise.appclient;
import java.net.*;
import java.io.*;
import java.util.*;
import java.security.*;
import javax.security.auth.*;
import javax.security.auth.login.*;
import com.sun.enterprise.security.auth.LoginContextDriver;
import com.sun.enterprise.security.ClientSecurityContext;
import com.sun.enterprise.security.auth.login.PasswordCredential;
import java.util.logging.Logger;
import java.util.logging.Level;
import com.sun.logging.LogDomains;
/**
* This is the callback object that gets called when a protected resource
* needs to be accessed and authentication information is needed. Pops up
* a UI to input username and password.
*/
public class HttpAuthenticator extends Authenticator
{
public static final boolean debug = false;
private AppContainer container = null;
private static Logger _logger = LogDomains.getLogger(LogDomains.ACC_LOGGER);
/**
* Create the authenticator.
*/
public HttpAuthenticator(AppContainer container) {
this.container = container;
}
/**
* This is called when authentication is needed for a protected
* web resource. It looks for the authentication data in the subject.
* If the data is not found then login is invoked on the login context.
*/
protected PasswordAuthentication getPasswordAuthentication()
{
String user = null;
String password = null;
Subject subject = null;
String scheme = getRequestingScheme();
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("scheme=" + scheme);
_logger.fine("requesting prompt=" + getRequestingPrompt());
_logger.fine("requesting protocol=" + getRequestingProtocol());
}
ClientSecurityContext cont = ClientSecurityContext.getCurrent();
subject = (cont != null) ? cont.getSubject() : null;
user = getUserName(subject);
password = getPassword(subject);
if(user == null || password == null) {
try {
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("Initiating login again...");
}
LoginContextDriver.doClientLogin(AppContainer.USERNAME_PASSWORD,
AppContainer.getCallbackHandler());
cont = ClientSecurityContext.getCurrent();
subject = cont.getSubject();
user = getUserName(subject);
password = getPassword(subject);
} catch(Exception e) {
_logger.log(Level.FINE, "Exception " + e.toString(), e);
return null;
}
}
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("Username:" + user);
}
return new PasswordAuthentication(user, password.toCharArray());
}
/**
* Return the username from the subject.
*/
private String getUserName(Subject s) {
String user = null;
if(s == null)
return null;
Set principalSet = s.getPrincipals();
Iterator itr = principalSet.iterator();
if(itr.hasNext()) {
Principal p = (Principal) itr.next();
user = p.getName();
}
return user;
}
/**
* Return the password for the subject.
*/
private String getPassword(Subject s) {
String password = null;
if(s == null)
return null;
Set credentials = s.getPrivateCredentials();
Iterator credIter = credentials.iterator();
if(credIter.hasNext()) {
Object o = credIter.next();
if(o instanceof PasswordCredential) {
PasswordCredential pc = (PasswordCredential) o;
// CHECK REALM.
password = pc.getPassword();
}
}
return password;
}
}