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Source Code of CheckOptions$MyCallbackHandler

/*
* Copyright (c) 2005, 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.
*
* 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.
*/

/**
* @test
* @author Vincent Ryan
* @bug 4814522
* @summary Check that a LdapLoginModule can be initialized using various
*          options.
*          (LdapLoginModule replaces the JndiLoginModule for LDAP access)
*/

import java.io.IOException;
import java.util.Collections;
import java.util.Map;
import java.util.HashMap;

import javax.security.auth.*;
import javax.security.auth.login.*;
import javax.security.auth.callback.*;
import com.sun.security.auth.module.LdapLoginModule;

public class CheckOptions {

    private static final String USER_PROVIDER_OPTION = "UsErPrOvIdeR";

    public static void main(String[] args) throws Exception {
        init();
        testInvalidOptions();
        testNullCallbackHandler();
        testWithCallbackHandler();
    }

    private static void init() throws Exception {
    }

    private static void testInvalidOptions() throws Exception {

        // empty set of options

        LdapLoginModule ldap = new LdapLoginModule();
        Subject subject = new Subject();
        ldap.initialize(subject, null, null, Collections.EMPTY_MAP);

        try {
            ldap.login();
            throw new SecurityException("expected a LoginException");

        } catch (LoginException le) {
            // expected behaviour
            System.out.println("Caught a LoginException, as expected");
        }

        // bad value for userProvider option

        Map<String, String> options = new HashMap<String, String>();
        options.put(USER_PROVIDER_OPTION, "ldap://localhost:23456");
        ldap.initialize(subject, null, null, options);

        try {
            ldap.login();
            throw new SecurityException("expected a LoginException");

        } catch (LoginException le) {
            // expected behaviour
            System.out.println("Caught a LoginException, as expected");
        }
    }

    private static void testNullCallbackHandler() throws Exception {

        // empty set of options

        LdapLoginModule ldap = new LdapLoginModule();
        Subject subject = new Subject();
        Map<String, String> options = new HashMap<String, String>();
        ldap.initialize(subject, null, null, options);

        try {
            ldap.login();
            throw new SecurityException("expected LoginException");

        } catch (LoginException le) {
            // expected behaviour
            System.out.println("Caught a LoginException, as expected");
        }
    }

    private static void testWithCallbackHandler() throws Exception {

        LdapLoginModule ldap = new LdapLoginModule();
        Subject subject = new Subject();
        Map<String, String> options = new HashMap<String, String>();

        CallbackHandler goodHandler = new MyCallbackHandler(true);
        ldap.initialize(subject, goodHandler, null, options);

        try {
            ldap.login();
            throw new SecurityException("expected LoginException");

        } catch (LoginException le) {
            // expected behaviour
            System.out.println("Caught a LoginException, as expected");
        }

        CallbackHandler badHandler = new MyCallbackHandler(false);
        ldap.initialize(subject, badHandler, null, options);

        try {
            ldap.login();
            throw new SecurityException("expected LoginException");

        } catch (LoginException le) {
            // expected behaviour
            System.out.println("Caught a LoginException, as expected");
        }
    }

    private static class MyCallbackHandler implements CallbackHandler {

        private final boolean good;

        public MyCallbackHandler(boolean good) {
            this.good = good;
        }

        public void handle(Callback[] callbacks)
                throws IOException, UnsupportedCallbackException {

            for (int i = 0; i < callbacks.length; i++) {

                if (callbacks[i] instanceof NameCallback) {
                    NameCallback nc = (NameCallback) callbacks[i];

                    if (good) {
                        nc.setName("foo");
                    } else {
                        // do nothing
                    }

                } else if (callbacks[i] instanceof PasswordCallback) {
                    PasswordCallback pc = (PasswordCallback) callbacks[i];

                    if (good) {
                        pc.setPassword("foo".toCharArray());
                    } else {
                        // do nothing
                    }
                }
            }
        }
    }
}
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