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| 1 | +/* | |
| 2 | + * Copyright (c) 2010, Oracle and/or its affiliates. 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. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package com.sun.security.ntlm; | |
| 27 | + | |
| 28 | +import java.math.BigInteger; | |
| 29 | +import java.util.Arrays; | |
| 30 | +import java.util.Date; | |
| 31 | +import java.util.Locale; | |
| 32 | + | |
| 33 | +/** | |
| 34 | + * The NTLM client. Not multi-thread enabled.<p> | |
| 35 | + * Example: | |
| 36 | + * <pre> | |
| 37 | + * Client client = new Client(null, "host", "dummy", | |
| 38 | + * "REALM", "t0pSeCr3t".toCharArray()); | |
| 39 | + * byte[] type1 = client.type1(); | |
| 40 | + * // Send type1 to server and receive response as type2 | |
| 41 | + * byte[] type3 = client.type3(type2, nonce); | |
| 42 | + * // Send type3 to server | |
| 43 | + * </pre> | |
| 44 | + */ | |
| 45 | +public final class Client extends NTLM { | |
| 46 | + final private String hostname; | |
| 47 | + final private String username; | |
| 48 | + | |
| 49 | + private String domain; // might be updated by Type 2 msg | |
| 50 | + private byte[] pw1, pw2; | |
| 51 | + | |
| 52 | + /** | |
| 53 | + * Creates an NTLM Client instance. | |
| 54 | + * @param version the NTLM version to use, which can be: | |
| 55 | + * <ul> | |
| 56 | + * <li>LM/NTLM: Original NTLM v1 | |
| 57 | + * <li>LM: Original NTLM v1, LM only | |
| 58 | + * <li>NTLM: Original NTLM v1, NTLM only | |
| 59 | + * <li>NTLM2: NTLM v1 with Client Challenge | |
| 60 | + * <li>LMv2/NTLMv2: NTLM v2 | |
| 61 | + * <li>LMv2: NTLM v2, LM only | |
| 62 | + * <li>NTLMv2: NTLM v2, NTLM only | |
| 63 | + * </ul> | |
| 64 | + * If null, "LMv2/NTLMv2" will be used. | |
| 65 | + * @param hostname hostname of the client, can be null | |
| 66 | + * @param username username to be authenticated, must not be null | |
| 67 | + * @param domain domain of {@code username}, can be null | |
| 68 | + * @param password password for {@code username}, must not be not null. | |
| 69 | + * This method does not make any modification to this parameter, it neither | |
| 70 | + * needs to access the content of this parameter after this method call, | |
| 71 | + * so you are free to modify or nullify this parameter after this call. | |
| 72 | + * @throws NullPointerException if {@code username} or {@code password} is null. | |
| 73 | + * @throws NTLMException if {@code version} is illegal | |
| 74 | + */ | |
| 75 | + public Client(String version, String hostname, String username, | |
| 76 | + String domain, char[] password) throws NTLMException { | |
| 77 | + super(version); | |
| 78 | + if ((username == null || password == null)) { | |
| 79 | + throw new NullPointerException("username/password cannot be null"); | |
| 80 | + } | |
| 81 | + this.hostname = hostname; | |
| 82 | + this.username = username; | |
| 83 | + this.domain = domain; | |
| 84 | + this.pw1 = getP1(password); | |
| 85 | + this.pw2 = getP2(password); | |
| 86 | + debug("NTLM Client: (h,u,t,version(v)) = (%s,%s,%s,%s(%s))\n", | |
| 87 | + hostname, username, domain, version, v.toString()); | |
| 88 | + } | |
| 89 | + | |
| 90 | + /** | |
| 91 | + * Generates the Type 1 message | |
| 92 | + * @return the message generated | |
| 93 | + */ | |
| 94 | + public byte[] type1() { | |
| 95 | + Writer p = new Writer(1, 32); | |
| 96 | + int flags = 0x8203; | |
| 97 | + if (hostname != null) { | |
| 98 | + flags |= 0x2000; | |
| 99 | + } | |
| 100 | + if (domain != null) { | |
| 101 | + flags |= 0x1000; | |
| 102 | + } | |
| 103 | + if (v != Version.NTLM) { | |
| 104 | + flags |= 0x80000; | |
| 105 | + } | |
| 106 | + p.writeInt(12, flags); | |
| 107 | + p.writeSecurityBuffer(24, hostname, false); | |
| 108 | + p.writeSecurityBuffer(16, domain, false); | |
| 109 | + debug("NTLM Client: Type 1 created\n"); | |
| 110 | + debug(p.getBytes()); | |
| 111 | + return p.getBytes(); | |
| 112 | + } | |
| 113 | + | |
| 114 | + /** | |
| 115 | + * Generates the Type 3 message | |
| 116 | + * @param type2 the responding Type 2 message from server, must not be null | |
| 117 | + * @param nonce random 8-byte array to be used in message generation, | |
| 118 | + * must not be null except for original NTLM v1 | |
| 119 | + * @return the message generated | |
| 120 | + * @throws NullPointerException if {@code type2} or {@code nonce} is null | |
| 121 | + * for NTLM v1. | |
| 122 | + * @throws NTLMException if the incoming message is invalid | |
| 123 | + */ | |
| 124 | + public byte[] type3(byte[] type2, byte[] nonce) throws NTLMException { | |
| 125 | + if (type2 == null || (v != Version.NTLM && nonce == null)) { | |
| 126 | + throw new NullPointerException("type2 and nonce cannot be null"); | |
| 127 | + } | |
| 128 | + debug("NTLM Client: Type 2 received\n"); | |
| 129 | + debug(type2); | |
| 130 | + Reader r = new Reader(type2); | |
| 131 | + byte[] challenge = r.readBytes(24, 8); | |
| 132 | + int inputFlags = r.readInt(20); | |
| 133 | + boolean unicode = (inputFlags & 1) == 1; | |
| 134 | + String domainFromServer = r.readSecurityBuffer(12, unicode); | |
| 135 | + if (domainFromServer != null) { | |
| 136 | + domain = domainFromServer; | |
| 137 | + } | |
| 138 | + if (domain == null) { | |
| 139 | + throw new NTLMException(NTLMException.NO_DOMAIN_INFO, | |
| 140 | + "No domain info"); | |
| 141 | + } | |
| 142 | + | |
| 143 | + int flags = 0x88200 | (inputFlags & 3); | |
| 144 | + Writer p = new Writer(3, 64); | |
| 145 | + byte[] lm = null, ntlm = null; | |
| 146 | + | |
| 147 | + p.writeSecurityBuffer(28, domain, unicode); | |
| 148 | + p.writeSecurityBuffer(36, username, unicode); | |
| 149 | + p.writeSecurityBuffer(44, hostname, unicode); | |
| 150 | + | |
| 151 | + if (v == Version.NTLM) { | |
| 152 | + byte[] lmhash = calcLMHash(pw1); | |
| 153 | + byte[] nthash = calcNTHash(pw2); | |
| 154 | + if (writeLM) lm = calcResponse (lmhash, challenge); | |
| 155 | + if (writeNTLM) ntlm = calcResponse (nthash, challenge); | |
| 156 | + } else if (v == Version.NTLM2) { | |
| 157 | + byte[] nthash = calcNTHash(pw2); | |
| 158 | + lm = ntlm2LM(nonce); | |
| 159 | + ntlm = ntlm2NTLM(nthash, nonce, challenge); | |
| 160 | + } else { | |
| 161 | + byte[] nthash = calcNTHash(pw2); | |
| 162 | + if (writeLM) lm = calcV2(nthash, | |
| 163 | + username.toUpperCase(Locale.US)+domain, nonce, challenge); | |
| 164 | + if (writeNTLM) { | |
| 165 | + byte[] alist = type2.length > 48 ? | |
| 166 | + r.readSecurityBuffer(40) : new byte[0]; | |
| 167 | + byte[] blob = new byte[32+alist.length]; | |
| 168 | + System.arraycopy(new byte[]{1,1,0,0,0,0,0,0}, 0, blob, 0, 8); | |
| 169 | + // TS | |
| 170 | + byte[] time = BigInteger.valueOf(new Date().getTime()) | |
| 171 | + .add(new BigInteger("11644473600000")) | |
| 172 | + .multiply(BigInteger.valueOf(10000)) | |
| 173 | + .toByteArray(); | |
| 174 | + for (int i=0; i<time.length; i++) { | |
| 175 | + blob[8+time.length-i-1] = time[i]; | |
| 176 | + } | |
| 177 | + System.arraycopy(nonce, 0, blob, 16, 8); | |
| 178 | + System.arraycopy(new byte[]{0,0,0,0}, 0, blob, 24, 4); | |
| 179 | + System.arraycopy(alist, 0, blob, 28, alist.length); | |
| 180 | + System.arraycopy(new byte[]{0,0,0,0}, 0, | |
| 181 | + blob, 28+alist.length, 4); | |
| 182 | + ntlm = calcV2(nthash, username.toUpperCase(Locale.US)+domain, | |
| 183 | + blob, challenge); | |
| 184 | + } | |
| 185 | + } | |
| 186 | + p.writeSecurityBuffer(12, lm); | |
| 187 | + p.writeSecurityBuffer(20, ntlm); | |
| 188 | + p.writeSecurityBuffer(52, new byte[0]); | |
| 189 | + | |
| 190 | + p.writeInt(60, flags); | |
| 191 | + debug("NTLM Client: Type 3 created\n"); | |
| 192 | + debug(p.getBytes()); | |
| 193 | + return p.getBytes(); | |
| 194 | + } | |
| 195 | + | |
| 196 | + /** | |
| 197 | + * Returns the domain value provided by server after the authentication | |
| 198 | + * is complete, or the domain value provided by the client before it. | |
| 199 | + * @return the domain | |
| 200 | + */ | |
| 201 | + public String getDomain() { | |
| 202 | + return domain; | |
| 203 | + } | |
| 204 | + | |
| 205 | + /** | |
| 206 | + * Disposes any password-derived information. | |
| 207 | + */ | |
| 208 | + public void dispose() { | |
| 209 | + Arrays.fill(pw1, (byte)0); | |
| 210 | + Arrays.fill(pw2, (byte)0); | |
| 211 | + } | |
| 212 | +} | |