/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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).
 *
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package sun.net.www.protocol.http;
import java.io.IOException;
import java.net.Authenticator;
import java.net.PasswordAuthentication;
import java.util.Arrays;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.NameCallback;
import javax.security.auth.callback.PasswordCallback;
import javax.security.auth.callback.UnsupportedCallbackException;

Since:1.6 Special callback handler used in JGSS for the HttpCaller.
/** * @since 1.6 * Special callback handler used in JGSS for the HttpCaller. */
public class NegotiateCallbackHandler implements CallbackHandler { private String username; private char[] password; private final HttpCallerInfo hci; public NegotiateCallbackHandler(HttpCallerInfo hci) { this.hci = hci; } public void handle(Callback[] callbacks) throws UnsupportedCallbackException, IOException { for (int i=0; i<callbacks.length; i++) { Callback callBack = callbacks[i]; if (callBack instanceof NameCallback) { if (username == null) { PasswordAuthentication passAuth = Authenticator.requestPasswordAuthentication( hci.host, hci.addr, hci.port, hci.protocol, hci.prompt, hci.scheme, hci.url, hci.authType); username = passAuth.getUserName(); password = passAuth.getPassword(); } NameCallback nameCallback = (NameCallback)callBack; nameCallback.setName(username); } else if (callBack instanceof PasswordCallback) { PasswordCallback passwordCallback = (PasswordCallback)callBack; if (password == null) { PasswordAuthentication passAuth = Authenticator.requestPasswordAuthentication( hci.host, hci.addr, hci.port, hci.protocol, hci.prompt, hci.scheme, hci.url, hci.authType); username = passAuth.getUserName(); password = passAuth.getPassword(); } passwordCallback.setPassword(password); Arrays.fill(password, ' '); } else { throw new UnsupportedCallbackException(callBack, "Call back not supported"); } } } }