/*
 * Copyright (c) 2015, 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 8056174
 * @summary New APIs for jar signing
 */

import jdk.security.jarsigner.JarSigner;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.security.InvalidKeyException;
import java.security.InvalidParameterException;
import java.security.KeyStore;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.PrivateKey;
import java.security.Provider;
import java.security.PublicKey;
import java.security.Signature;
import java.security.SignatureException;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;
import java.util.Arrays;
import java.util.Collections;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream;

public class API {
    public static void main(String[] args) throws Exception {

        try (FileOutputStream fout =new FileOutputStream("src.zip");
                ZipOutputStream zout = new ZipOutputStream(fout)) {
            zout.putNextEntry(new ZipEntry("x"));
            zout.write(new byte[10]);
            zout.closeEntry();
        }

        KeyStore ks = KeyStore.getInstance("JKS");
        ks.load(new FileInputStream(
                new File(System.getProperty("test.src"), "JarSigning.keystore")),
                "bbbbbb".toCharArray());
        PrivateKey key = (PrivateKey)ks.getKey("c", "bbbbbb".toCharArray());
        Certificate cert = ks.getCertificate("c");
        JarSigner js = new JarSigner(key,
                CertificateFactory.getInstance("X.509").generateCertPath(
                        Collections.singletonList(cert)));

        try {
            js.digestAlg("FUNNY");
            throw new Exception("Should have failed");
        } catch (NoSuchAlgorithmException e) {
            // Good
        }

        try {
            js.sigAlg("SHA1withDSA");
            throw new Exception("Should have failed");
        } catch (IllegalArgumentException e) {
            // Good
        }

        try {
            js.sigAlg("FUNwithJOY");
            throw new Exception("Should have failed");
        } catch (NoSuchAlgorithmException e) {
            // Good
        }

        js.digestAlg("SHA1");
        js.sigAlg("SHA1withRSA");

        try {
            js.signerName("");
            throw new Exception("Should have failed");
        } catch (IllegalArgumentException e) {
            // I knew that
        }

        try {
            js.signerName("this_is_long");
            throw new Exception("Should have failed");
        } catch (IllegalArgumentException e) {
            // I knew that
        }

        try {
            js.signerName("illegal!");
            throw new Exception("Should have failed");
        } catch (IllegalArgumentException e) {
            // I knew that
        }

        OutputStream blackHole = new OutputStream() {
            @Override
            public void write(int b) throws IOException {
                return;
            }
        };

        try (ZipFile src = new ZipFile("src.zip")) {
            js.sign(src, blackHole);
        }


        Provider p = new MyProvider();
        js.digestAlg("Five", p);
        js.sigAlg("SHA1WithRSA", p);
        try (ZipFile src = new ZipFile("src.zip")) {
            js.sign(src, blackHole);
        }
    }

    public static class MyProvider extends Provider {
        MyProvider() {
            super("MY", 1.0d, null);
            put("MessageDigest.Five", Five.class.getName());
            put("Signature.SHA1WithRSA", SHA1WithRSA.class.getName());
        }
    }

    public static class Five extends MessageDigest {
        static final byte[] dig = {0x14, 0x02, (byte)0x84}; //base64 -> FAKE
        public Five() { super("Five"); }
        protected void engineUpdate(byte input) { }
        protected void engineUpdate(byte[] input, int offset, int len) { }
        protected byte[] engineDigest() { return dig; }
        protected void engineReset() { }
    }

    public static class SHA1WithRSA extends Signature {
        static final byte[] sig = "FAKEFAKE".getBytes();
        public SHA1WithRSA() { super("SHA1WithRSA"); }
        protected void engineInitVerify(PublicKey publicKey)
                throws InvalidKeyException { }
        protected void engineInitSign(PrivateKey privateKey)
                throws InvalidKeyException { }
        protected void engineUpdate(byte b) throws SignatureException { }
        protected void engineUpdate(byte[] b, int off, int len)
                throws SignatureException { }
        protected byte[] engineSign() throws SignatureException { return sig; }
        protected boolean engineVerify(byte[] sigBytes)
                throws SignatureException {
            return Arrays.equals(sigBytes, sig);
        }
        protected void engineSetParameter(String param, Object value)
                throws InvalidParameterException { }
        protected Object engineGetParameter(String param)
                throws InvalidParameterException { return null; }
    }
}