/*
* Copyright 2002-2005 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package sun.net.www.protocol.http;
import java.util.Arrays;
import java.util.StringTokenizer;
import java.util.Random;
import sun.net.www.HeaderParser;
import java.io.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import java.security.*;
import java.net.*;
/**
* NTLMAuthentication:
*
* @author Michael McMahon
*/
class NTLMAuthentication extends AuthenticationInfo {
private static final long serialVersionUID = 100L;
static final char NTLM_AUTH = 'N';
private String hostname;
private static String defaultDomain; /* Domain to use if not specified by user */
static {
defaultDomain = java.security.AccessController.doPrivileged(
new sun.security.action.GetPropertyAction("http.auth.ntlm.domain",
"domain"));
};
private void init0() {
hostname = java.security.AccessController.doPrivileged(
new java.security.PrivilegedAction<String>() {
public String run() {
String localhost;
try {
localhost = InetAddress.getLocalHost().getHostName().toUpperCase();
} catch (UnknownHostException e) {
localhost = "localhost";
}
return localhost;
}
});
int x = hostname.indexOf ('.');
if (x != -1) {
hostname = hostname.substring (0, x);
}
}
String username;
String ntdomain;
String password;
/**
* Create a NTLMAuthentication:
* Username may be specified as domain<BACKSLASH>username in the application Authenticator.
* If this notation is not used, then the domain will be taken
* from a system property: "http.auth.ntlm.domain".
*/
public NTLMAuthentication(boolean isProxy, URL url, PasswordAuthentication pw) {
super(isProxy?PROXY_AUTHENTICATION:SERVER_AUTHENTICATION, NTLM_AUTH, url, "");
init (pw);
}
private void init (PasswordAuthentication pw) {
this.pw = pw;
if (pw != null) {
String s = pw.getUserName();
int i = s.indexOf ('\\');
if (i == -1) {
username = s;
ntdomain = defaultDomain;
} else {
ntdomain = s.substring (0, i).toUpperCase();
username = s.substring (i+1);
}
password = new String (pw.getPassword());
} else {
/* credentials will be acquired from OS */
username = null;
ntdomain = null;
password = null;
}
init0();
}
/**
* Constructor used for proxy entries
*/
public NTLMAuthentication(boolean isProxy, String host, int port,
PasswordAuthentication pw) {
super(isProxy?PROXY_AUTHENTICATION:SERVER_AUTHENTICATION, NTLM_AUTH,host, port, "");
init (pw);
}
/**
* @return true if this authentication supports preemptive authorization
*/
boolean supportsPreemptiveAuthorization() {
return false;
}
/**
* @return true if NTLM supported transparently (no password needed, SSO)
*/
static boolean supportsTransparentAuth() {
return true;
}
/**
* @return the name of the HTTP header this authentication wants set
*/
String getHeaderName() {
if (type == SERVER_AUTHENTICATION) {
return "Authorization";
} else {
return "Proxy-authorization";
}
}
/**
* Not supported. Must use the setHeaders() method
*/
String getHeaderValue(URL url, String method) {
throw new RuntimeException ("getHeaderValue not supported");
}
/**
* Check if the header indicates that the current auth. parameters are stale.
* If so, then replace the relevant field with the new value
* and return true. Otherwise return false.
* returning true means the request can be retried with the same userid/password
* returning false means we have to go back to the user to ask for a new
* username password.
*/
boolean isAuthorizationStale (String header) {
return false; /* should not be called for ntlm */
}
/**
* Set header(s) on the given connection.
* @param conn The connection to apply the header(s) to
* @param p A source of header values for this connection, not used because
* HeaderParser converts the fields to lower case, use raw instead
* @param raw The raw header field.
* @return true if all goes well, false if no headers were set.
*/
synchronized boolean setHeaders(HttpURLConnection conn, HeaderParser p, String raw) {
try {
NTLMAuthSequence seq = (NTLMAuthSequence)conn.authObj;
if (seq == null) {
seq = new NTLMAuthSequence (username, password, ntdomain);
conn.authObj = seq;
}
String response = "NTLM " + seq.getAuthHeader (raw.length()>6?raw.substring(5):null);
conn.setAuthenticationProperty(getHeaderName(), response);
return true;
} catch (IOException e) {
return false;
}
}
/* This is a no-op for NTLM, because there is no authentication information
* provided by the server to the client
*/
public void checkResponse (String header, String method, URL url) throws IOException {
}
}