136 lines
5.5 KiB
Java
136 lines
5.5 KiB
Java
/*
|
|
* Copyright (c) 1999, 2011, Oracle and/or its affiliates. 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. Oracle designates this
|
|
* particular file as subject to the "Classpath" exception as provided
|
|
* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*/
|
|
|
|
package com.sun.jndi.ldap.sasl;
|
|
|
|
import javax.security.auth.callback.*;
|
|
import javax.security.sasl.RealmCallback;
|
|
import javax.security.sasl.RealmChoiceCallback;
|
|
import java.io.IOException;
|
|
|
|
/**
|
|
* DefaultCallbackHandler for satisfying NameCallback and
|
|
* PasswordCallback for an LDAP client.
|
|
* NameCallback is used for getting the authentication ID and is
|
|
* gotten from the java.naming.security.principal property.
|
|
* PasswordCallback is gotten from the java.naming.security.credentials
|
|
* property and must be of type String, char[] or byte[].
|
|
* If byte[], it is assumed to have UTF-8 encoding.
|
|
*
|
|
* If the caller of getPassword() will be using the password as
|
|
* a byte array, then it should encode the char[] array returned by
|
|
* getPassword() into a byte[] using UTF-8.
|
|
*
|
|
* @author Rosanna Lee
|
|
*/
|
|
final class DefaultCallbackHandler implements CallbackHandler {
|
|
private char[] passwd;
|
|
private String authenticationID;
|
|
private String authRealm;
|
|
|
|
DefaultCallbackHandler(String principal, Object cred, String realm)
|
|
throws IOException {
|
|
authenticationID = principal;
|
|
authRealm = realm;
|
|
if (cred instanceof String) {
|
|
passwd = ((String)cred).toCharArray();
|
|
} else if (cred instanceof char[]) {
|
|
passwd = ((char[])cred).clone();
|
|
} else if (cred != null) {
|
|
// assume UTF-8 encoding
|
|
String orig = new String((byte[])cred, "UTF8");
|
|
passwd = orig.toCharArray();
|
|
}
|
|
}
|
|
|
|
public void handle(Callback[] callbacks)
|
|
throws IOException, UnsupportedCallbackException {
|
|
for (int i = 0; i < callbacks.length; i++) {
|
|
if (callbacks[i] instanceof NameCallback) {
|
|
((NameCallback)callbacks[i]).setName(authenticationID);
|
|
|
|
} else if (callbacks[i] instanceof PasswordCallback) {
|
|
((PasswordCallback)callbacks[i]).setPassword(passwd);
|
|
|
|
} else if (callbacks[i] instanceof RealmChoiceCallback) {
|
|
/* Deals with a choice of realms */
|
|
String[] choices =
|
|
((RealmChoiceCallback)callbacks[i]).getChoices();
|
|
int selected = 0;
|
|
|
|
if (authRealm != null && authRealm.length() > 0) {
|
|
selected = -1; // no realm chosen
|
|
for (int j = 0; j < choices.length; j++) {
|
|
if (choices[j].equals(authRealm)) {
|
|
selected = j;
|
|
}
|
|
}
|
|
if (selected == -1) {
|
|
StringBuffer allChoices = new StringBuffer();
|
|
for (int j = 0; j < choices.length; j++) {
|
|
allChoices.append(choices[j] + ",");
|
|
}
|
|
throw new IOException("Cannot match " +
|
|
"'java.naming.security.sasl.realm' property value, '" +
|
|
authRealm + "' with choices " + allChoices +
|
|
"in RealmChoiceCallback");
|
|
}
|
|
}
|
|
|
|
((RealmChoiceCallback)callbacks[i]).setSelectedIndex(selected);
|
|
|
|
} else if (callbacks[i] instanceof RealmCallback) {
|
|
/* 1 or 0 realms specified in challenge */
|
|
RealmCallback rcb = (RealmCallback) callbacks[i];
|
|
if (authRealm != null) {
|
|
rcb.setText(authRealm); // Use what user supplied
|
|
} else {
|
|
String defaultRealm = rcb.getDefaultText();
|
|
if (defaultRealm != null) {
|
|
rcb.setText(defaultRealm); // Use what server supplied
|
|
} else {
|
|
rcb.setText(""); // Specify no realm
|
|
}
|
|
}
|
|
} else {
|
|
throw new UnsupportedCallbackException(callbacks[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
void clearPassword() {
|
|
if (passwd != null) {
|
|
for (int i = 0; i < passwd.length; i++) {
|
|
passwd[i] = '\0';
|
|
}
|
|
passwd = null;
|
|
}
|
|
}
|
|
|
|
protected void finalize() throws Throwable {
|
|
clearPassword();
|
|
}
|
|
}
|