author | weijun |
Wed, 09 Jul 2014 15:10:42 +0800 | |
changeset 25396 | 5e73c95f95db |
parent 23010 | 6dadb192ad81 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.security.sasl.ntlm; |
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import com.sun.security.ntlm.NTLMException; |
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import com.sun.security.ntlm.Server; |
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import java.io.IOException; |
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import java.security.GeneralSecurityException; |
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import java.util.Map; |
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import java.util.Random; |
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import javax.security.auth.callback.Callback; |
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import javax.security.auth.callback.CallbackHandler; |
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import javax.security.auth.callback.NameCallback; |
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import javax.security.auth.callback.PasswordCallback; |
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import javax.security.auth.callback.UnsupportedCallbackException; |
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import javax.security.sasl.*; |
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/** |
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* Required callbacks: |
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* - RealmCallback |
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* used as key by handler to fetch password, optional |
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* - NameCallback |
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* used as key by handler to fetch password |
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* - PasswordCallback |
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* handler must enter password for username/realm supplied |
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* |
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* Environment properties that affect the implementation: |
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* |
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* javax.security.sasl.qop |
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* String, quality of protection; only "auth" is accepted, default "auth" |
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* |
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* com.sun.security.sasl.ntlm.version |
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* String, name a specific version to accept: |
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* LM/NTLM: Original NTLM v1 |
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* LM: Original NTLM v1, LM only |
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* NTLM: Original NTLM v1, NTLM only |
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* NTLM2: NTLM v1 with Client Challenge |
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* LMv2/NTLMv2: NTLM v2 |
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* LMv2: NTLM v2, LM only |
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* NTLMv2: NTLM v2, NTLM only |
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* If not specified, use system property "ntlm.version". If also |
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* not specified, all versions are accepted. |
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* |
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* com.sun.security.sasl.ntlm.domain |
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* String, the domain of the server, default is server name (fqdn parameter) |
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* |
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* com.sun.security.sasl.ntlm.random |
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* java.util.Random, the nonce source. Default null, an internal |
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* java.util.Random object will be used |
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* |
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* Negotiated Properties: |
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* |
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* javax.security.sasl.qop |
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* Always "auth" |
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* |
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* com.sun.security.sasl.ntlm.hostname |
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* The hostname for the user, provided by the client |
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* |
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*/ |
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final class NTLMServer implements SaslServer { |
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private final static String NTLM_VERSION = |
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"com.sun.security.sasl.ntlm.version"; |
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private final static String NTLM_DOMAIN = |
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"com.sun.security.sasl.ntlm.domain"; |
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private final static String NTLM_HOSTNAME = |
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"com.sun.security.sasl.ntlm.hostname"; |
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private static final String NTLM_RANDOM = |
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"com.sun.security.sasl.ntlm.random"; |
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private final Random random; |
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private final Server server; |
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private byte[] nonce; |
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private int step = 0; |
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private String authzId; |
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private final String mech; |
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private String hostname; |
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private String target; |
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/** |
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* @param mech not null |
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* @param protocol not null for Sasl, ignored in NTLM |
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* @param serverName not null for Sasl, can be null in NTLM. If non-null, |
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* might be used as domain if not provided in props |
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* @param props can be null |
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* @param cbh can be null for Sasl, already null-checked in factory |
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* @throws SaslException |
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*/ |
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NTLMServer(String mech, String protocol, String serverName, |
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Map<String, ?> props, final CallbackHandler cbh) |
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throws SaslException { |
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this.mech = mech; |
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String version = null; |
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String domain = null; |
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Random rtmp = null; |
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if (props != null) { |
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domain = (String) props.get(NTLM_DOMAIN); |
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version = (String)props.get(NTLM_VERSION); |
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rtmp = (Random)props.get(NTLM_RANDOM); |
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} |
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random = rtmp != null ? rtmp : new Random(); |
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if (version == null) { |
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version = System.getProperty("ntlm.version"); |
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} |
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if (domain == null) { |
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domain = serverName; |
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} |
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if (domain == null) { |
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throw new SaslException("Domain must be provided as" |
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+ " the serverName argument or in props"); |
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} |
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try { |
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server = new Server(version, domain) { |
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public char[] getPassword(String ntdomain, String username) { |
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try { |
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RealmCallback rcb = |
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(ntdomain == null || ntdomain.isEmpty()) |
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? new RealmCallback("Domain: ") |
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: new RealmCallback("Domain: ", ntdomain); |
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NameCallback ncb = new NameCallback( |
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"Name: ", username); |
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PasswordCallback pcb = new PasswordCallback( |
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"Password: ", false); |
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cbh.handle(new Callback[] { rcb, ncb, pcb }); |
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char[] passwd = pcb.getPassword(); |
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pcb.clearPassword(); |
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return passwd; |
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} catch (IOException ioe) { |
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return null; |
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} catch (UnsupportedCallbackException uce) { |
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return null; |
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} |
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} |
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}; |
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} catch (NTLMException ne) { |
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throw new SaslException( |
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"NTLM: server creation failure", ne); |
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} |
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nonce = new byte[8]; |
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} |
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@Override |
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public String getMechanismName() { |
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return mech; |
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} |
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@Override |
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public byte[] evaluateResponse(byte[] response) throws SaslException { |
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try { |
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step++; |
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if (step == 1) { |
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random.nextBytes(nonce); |
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return server.type2(response, nonce); |
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} else { |
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String[] out = server.verify(response, nonce); |
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authzId = out[0]; |
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hostname = out[1]; |
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target = out[2]; |
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return null; |
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} |
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} catch (NTLMException ex) { |
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throw new SaslException("NTLM: generate response failure", ex); |
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} |
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} |
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@Override |
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public boolean isComplete() { |
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return step >= 2; |
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} |
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@Override |
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public String getAuthorizationID() { |
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if (!isComplete()) { |
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throw new IllegalStateException("authentication not complete"); |
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} |
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return authzId; |
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} |
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@Override |
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public byte[] unwrap(byte[] incoming, int offset, int len) |
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throws SaslException { |
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throw new IllegalStateException("Not supported yet."); |
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} |
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@Override |
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public byte[] wrap(byte[] outgoing, int offset, int len) |
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throws SaslException { |
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throw new IllegalStateException("Not supported yet."); |
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} |
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@Override |
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public Object getNegotiatedProperty(String propName) { |
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if (!isComplete()) { |
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throw new IllegalStateException("authentication not complete"); |
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} |
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switch (propName) { |
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case Sasl.QOP: |
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return "auth"; |
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case Sasl.BOUND_SERVER_NAME: |
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return target; |
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case NTLM_HOSTNAME: |
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return hostname; |
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default: |
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return null; |
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} |
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} |
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@Override |
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public void dispose() throws SaslException { |
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return; |
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} |
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} |