/*
 * Copyright (c) 2003, 2012, 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
 * @bug 4894125 7054918
 * @library ../testlibrary
 * @summary test that failover for KeyFactory works
 * @author Andreas Sterbenz
 */

import java.util.*;

import java.security.*;
import java.security.interfaces.*;
import java.security.spec.*;

public class Failover {

    public static void main(String[] args) throws Exception {
        ProvidersSnapshot snapshot = ProvidersSnapshot.create();
        try {
            main0(args);
        } finally {
            snapshot.restore();
        }
    }

    public static void main0(String[] args) throws Exception {
        Security.insertProviderAt(new ProviderFail(), 1);
        Security.addProvider(new ProviderPass());
        System.out.println(Arrays.asList(Security.getProviders()));

        KeyFactory kf;
        kf = KeyFactory.getInstance("FOO");
        kf.generatePublic(null);
        kf.generatePublic(null);
        kf.generatePrivate(null);

        kf = KeyFactory.getInstance("FOO");
        kf.generatePrivate(null);
        kf.getKeySpec(null, null);
        kf.translateKey(null);

        kf = KeyFactory.getInstance("FOO");
        kf.getKeySpec(null, null);
        kf.translateKey(null);

        kf = KeyFactory.getInstance("FOO");
        kf.translateKey(null);

        // somewhat more real tests using DSA
        System.out.println("DSA tests...");

        KeyPairGenerator kpg = KeyPairGenerator.getInstance("DSA");
        kpg.initialize(512);
        KeyPair kp = kpg.generateKeyPair();

        kf = KeyFactory.getInstance("DSA");
        System.out.println(kf.translateKey(kp.getPrivate()));

        kf = KeyFactory.getInstance("DSA");
        KeySpec spec = kf.getKeySpec(kp.getPublic(), DSAPublicKeySpec.class);

        kf = KeyFactory.getInstance("DSA");
        System.out.println(kf.generatePublic(spec));

        kf = KeyFactory.getInstance("DSA");
        try {
            kf.generatePrivate(spec);
            throw new Exception("no exception");
        } catch (InvalidKeySpecException e) {
            System.out.println(e);
        }
    }

    private static class ProviderPass extends Provider {
        ProviderPass() {
            super("Pass", 1.0d, "Pass");
            put("KeyFactory.FOO" , "Failover$KeyFactoryPass");
        }
    }

    private static class ProviderFail extends Provider {
        ProviderFail() {
            super("Fail", 1.0d, "Fail");
            put("KeyFactory.FOO" , "Failover$KeyFactoryFail");
            put("KeyFactory.DSA" , "Failover$KeyFactoryFail");
        }
    }

    public static class KeyFactoryPass extends KeyFactorySpi {

        protected PublicKey engineGeneratePublic(KeySpec keySpec) throws InvalidKeySpecException {
            System.out.println("MyKeyFactoryPass.engineGeneratePublic()");
            return null;
        }

        protected PrivateKey engineGeneratePrivate(KeySpec keySpec) throws InvalidKeySpecException {
            System.out.println("MyKeyFactoryPass.engineGeneratePrivate()");
            return null;
        }

        protected <T extends KeySpec> T
            engineGetKeySpec(Key key, Class<T> keySpec) throws InvalidKeySpecException
        {
            System.out.println("MyKeyFactoryPass.engineGetKeySpec()");
            return null;
        }

        protected Key engineTranslateKey(Key key) throws InvalidKeyException {
            System.out.println("MyKeyFactoryPass.engineTranslateKey()");
            return null;
        }

    }

    public static class KeyFactoryFail extends KeyFactorySpi {

        protected PublicKey engineGeneratePublic(KeySpec keySpec) throws InvalidKeySpecException {
            System.out.println("MyKeyFactoryFail.engineGeneratePublic()");
            throw new InvalidKeySpecException();
        }

        protected PrivateKey engineGeneratePrivate(KeySpec keySpec) throws InvalidKeySpecException {
            System.out.println("MyKeyFactoryFail.engineGeneratePrivate()");
            throw new InvalidKeySpecException();
        }

        protected <T extends KeySpec> T engineGetKeySpec(Key key, Class<T> keySpec) throws InvalidKeySpecException {
            System.out.println("MyKeyFactoryFail.engineGetKeySpec()");
            throw new InvalidKeySpecException();
        }

        protected Key engineTranslateKey(Key key) throws InvalidKeyException {
            System.out.println("MyKeyFactoryFail.engineTranslateKey()");
            throw new InvalidKeyException();
        }

    }

}
