/*
 *
 * Copyright (c) 2013 - 2017 Lijun Liao
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 *
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * THE AUTHOR LIJUN LIAO. LIJUN LIAO DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the XiPKI software without
 * disclosing the source code of your own applications.
 *
 * For more information, please contact Lijun Liao at this
 * address: lijun.liao@gmail.com
 */

package org.xipki.commons.security.speed.p12;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.math.BigInteger;
import java.security.cert.X509Certificate;

import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.xipki.commons.common.LoadExecutor;
import org.xipki.commons.common.util.IoUtil;
import org.xipki.commons.common.util.ParamUtil;
import org.xipki.commons.security.ConcurrentContentSigner;
import org.xipki.commons.security.SecurityFactory;
import org.xipki.commons.security.SignerConf;
import org.xipki.commons.security.util.AlgorithmUtil;

/**
 * @author Lijun Liao
 * @since 2.0.0
 */

public abstract class P12SignLoadTest extends LoadExecutor {

    class Testor implements Runnable {

        final byte[] data = new byte[] {1, 2, 3, 4};

        @Override
        public void run() {
            while (!stop() && getErrorAccout() < 1) {
                try {
                    signer.sign(data);
                    account(1, 0);
                } catch (Exception ex) {
                    account(1, 1);
                }
            }
        }

    } // class Testor

    protected static final String PASSWORD = "1234";

    private final ConcurrentContentSigner signer;

    public P12SignLoadTest(final SecurityFactory securityFactory, final String signatureAlgorithm,
            final byte[] keystore, final String description) throws Exception {
        super(description);

        ParamUtil.requireNonNull("securityFactory", securityFactory);
        ParamUtil.requireNonBlank("signatureAlgorithm", signatureAlgorithm);
        ParamUtil.requireNonNull("keystore", keystore);

        SignerConf signerConf = SignerConf.getKeystoreSignerConf(
                new ByteArrayInputStream(keystore), PASSWORD, signatureAlgorithm, 20);
        this.signer = securityFactory.createSigner("PKCS12", signerConf, (X509Certificate) null);
    }

    @Override
    protected Runnable getTestor() throws Exception {
        return new Testor();
    }

    // CHECKSTYLE:SKIP
    protected static byte[] getPrecomputedRSAKeystore(final int keysize,
            final BigInteger publicExponent) throws IOException {
        return getPrecomputedKeystore("rsa-" + keysize + "-0x" + publicExponent.toString(16)
            + ".p12");
    }

    // CHECKSTYLE:SKIP
    protected static byte[] getPrecomputedDSAKeystore(final int plength, final int qlength)
            throws IOException {
        return getPrecomputedKeystore("dsa-" + plength + "-" + qlength + ".p12");
    }

    // CHECKSTYLE:SKIP
    protected static byte[] getPrecomputedECKeystore(final String curveNamOrOid)
            throws IOException {
        ASN1ObjectIdentifier oid = AlgorithmUtil.getCurveOidForCurveNameOrOid(curveNamOrOid);
        if (oid == null) {
            return null;
        }

        return getPrecomputedKeystore("ec-" + oid.getId() + ".p12");
    }

    private static byte[] getPrecomputedKeystore(final String filename) throws IOException {
        InputStream in = P12ECSignLoadTest.class.getResourceAsStream("/testkeys/" + filename);
        return (in == null) ? null : IoUtil.read(in);
    }

}