1 /* 2 * Copyright 2002 Sun Microsystems, Inc. All Rights Reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Sun designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Sun in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 22 * CA 95054 USA or visit www.sun.com if you need additional information or 23 * have any questions. 24 */ 25 26 package sun.net.www.protocol.http; 27 28 import java.io.IOException; 29 import sun.misc.BASE64Encoder; 30 import sun.misc.BASE64Decoder; 31 32 /* 33 * Hooks into Windows implementation of NTLM. 34 * This class will be replaced if a cross-platform version of NTLM 35 * is implemented in the future. 36 */ 37 38 public class NTLMAuthSequence { 39 40 private String username; 41 private String password; 42 private String ntdomain; 43 private int state; 44 private long crdHandle; 45 private long ctxHandle; 46 47 static { 48 initFirst(); 49 } 50 51 NTLMAuthSequence (String username, String password, String ntdomain) 52 throws IOException 53 { 54 this.username = username; 55 this.password = password; 56 this.ntdomain = ntdomain; 57 state = 0; 58 crdHandle = getCredentialsHandle (username, ntdomain, password); 59 if (crdHandle == 0) { 60 throw new IOException ("could not get credentials handle"); 61 } 62 } 63 64 public String getAuthHeader (String token) throws IOException { 65 byte[] input = null; 66 if (token != null) 67 input = (new BASE64Decoder()).decodeBuffer(token); 68 byte[] b = getNextToken (crdHandle, input); 69 if (b == null) 70 throw new IOException ("Internal authentication error"); 71 return (new B64Encoder()).encode (b); 72 } 73 74 private native static void initFirst (); 75 76 private native long getCredentialsHandle (String user, String domain, String password); 77 78 private native byte[] getNextToken (long crdHandle, byte[] lastToken); 79 } 80 81 class B64Encoder extends BASE64Encoder { 82 protected int bytesPerLine () { 83 return 1024; 84 } 85 }