/*

 * Copyright (c) 2016, 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.

 */

package login;

import java.security.Principal;

import javax.security.auth.login.LoginContext;

import javax.security.auth.login.LoginException;

import com.sun.security.auth.UnixPrincipal;

public class JaasClientWithDefaultHandler {

    private static final String USER_NAME = "testUser";

    private static final String LOGIN_CONTEXT = "ModularLoginConf";

    private static final String CBH_PROP = "auth.login.defaultCallbackHandler";

    public static void main(String[] args) {

        try {

            java.security.Security.setProperty(CBH_PROP, args[0]);

            LoginContext lc = new LoginContext(LOGIN_CONTEXT);

            lc.login();

            checkPrincipal(lc, true);

            lc.logout();

            checkPrincipal(lc, false);

        } catch (LoginException le) {

            throw new RuntimeException(le);

        }

        System.out.println("Test passed.");

    }

    /*

     * Verify principal for the test user.

     */

    private static void checkPrincipal(LoginContext loginContext,

            boolean principalShouldExist) {

        if (!principalShouldExist) {

            if (loginContext.getSubject().getPrincipals().size() != 0) {

                throw new RuntimeException("Test failed. Principal was not "

                        + "cleared.");

            }

            return;

        }

        for (Principal p : loginContext.getSubject().getPrincipals()) {

            if (p instanceof UnixPrincipal

                    && USER_NAME.equals(p.getName())) {

                //Proper principal was found, return.

                return;

            }

        }

        throw new RuntimeException("Test failed. UnixPrincipal "

                + USER_NAME + " expected.");

    }

}