/*
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 */
package org.apache.qpid.systests.jms_1_1.extensions;

import java.nio.file.Path;
import java.security.KeyPair;
import java.security.PrivateKey;
import java.security.cert.X509Certificate;

import org.apache.qpid.test.utils.tls.CertificateEntry;
import org.apache.qpid.test.utils.tls.PrivateKeyEntry;
import org.apache.qpid.test.utils.tls.TlsResourceBuilder;
import org.apache.qpid.test.utils.tls.KeyCertificatePair;
import org.apache.qpid.test.utils.tls.TlsResource;

public class TlsHelper
{
    private static final String DN_CA = "CN=MyRootCA,O=ACME,ST=Ontario,C=CA";
    private static final String DN_BROKER = "CN=localhost,OU=Unknown,O=Unknown,L=Unknown,ST=Unknown,C=Unknown";
    private static final String DN_CLIENT_APP1 = "CN=app1@acme.org,OU=art,O=acme,L=Toronto,ST=ON,C=CA";
    private static final String DN_CLIENT_APP2 = "CN=app2@acme.org,OU=art,O=acme,L=Toronto,ST=ON,C=CA";
    private static final String CERT_ALIAS_ROOT_CA = "rootca";
    private static final String BROKER_ALIAS = "java-broker";

    public static final String CERT_ALIAS_APP1 = "app1";
    public static final String CERT_ALIAS_APP2 = "app2";

    private final Path _brokerKeyStore;
    private final Path _brokerTrustStore;
    private final Path _clientKeyStore;
    private final Path _clientTrustStore;
    private final X509Certificate _caCertificate;
    private final KeyCertificatePair _clientKeyPair1;
    private final KeyCertificatePair _caPair;

    public TlsHelper(TlsResource tlsResource) throws Exception
    {
        _caPair = TlsResourceBuilder.createKeyPairAndRootCA(DN_CA);
        final KeyPair brokerKeyPair = TlsResourceBuilder.createRSAKeyPair();
        final KeyPair clientKeyPair1 = TlsResourceBuilder.createRSAKeyPair();
        final KeyPair clientKeyPair2 = TlsResourceBuilder.createRSAKeyPair();

        final X509Certificate brokerCertificate =
                TlsResourceBuilder.createCertificateForServerAuthorization(brokerKeyPair, _caPair, DN_BROKER);
        final X509Certificate clientCertificate1 =
                TlsResourceBuilder.createCertificateForClientAuthorization(clientKeyPair1, _caPair, DN_CLIENT_APP1);
        final X509Certificate clientCertificate2 =
                TlsResourceBuilder.createCertificateForClientAuthorization(clientKeyPair2, _caPair, DN_CLIENT_APP2);

        final PrivateKey privateKey = clientKeyPair1.getPrivate();
        final X509Certificate certificate = clientCertificate1;
        _clientKeyPair1 = new KeyCertificatePair(privateKey, certificate);
        _caCertificate = _caPair.getCertificate();

        _brokerKeyStore = tlsResource.createKeyStore(new PrivateKeyEntry(BROKER_ALIAS,
                                                                         brokerKeyPair.getPrivate(),
                                                                         brokerCertificate,
                                                                         _caCertificate));
        _brokerTrustStore = tlsResource.createKeyStore(new CertificateEntry(CERT_ALIAS_ROOT_CA,
                                                                            _caCertificate));
        _clientKeyStore =
                tlsResource.createKeyStore(new PrivateKeyEntry(CERT_ALIAS_APP1,
                                                               clientKeyPair1.getPrivate(),
                                                               clientCertificate1,
                                                               _caCertificate),
                                           new PrivateKeyEntry(CERT_ALIAS_APP2,
                                                               clientKeyPair2.getPrivate(),
                                                               clientCertificate2,
                                                               _caCertificate));

        _clientTrustStore = tlsResource.createKeyStore(new CertificateEntry(CERT_ALIAS_ROOT_CA,
                                                                            _caCertificate));
    }


    public String getClientKeyStore()
    {
        return _clientKeyStore.toFile().getAbsolutePath();
    }

    public String getClientTrustStore()
    {
        return _clientTrustStore.toFile().getAbsolutePath();
    }

    public X509Certificate getCaCertificate()
    {
        return _caCertificate;
    }

    public PrivateKey getClientPrivateKey()
    {
        return _clientKeyPair1.getPrivateKey();
    }

    public X509Certificate getClientCerificate()
    {
        return _clientKeyPair1.getCertificate();
    }

    public String getBrokerKeyStore()
    {
        return _brokerKeyStore.toFile().getAbsolutePath();
    }

    public String getBrokerTrustStore()
    {
        return _brokerTrustStore.toFile().getAbsolutePath();
    }

    public KeyCertificatePair getCaKeyCertPair()
    {
        final PrivateKey privateKey = _caPair.getPrivateKey();
        final X509Certificate certificate = _caCertificate;
        return new KeyCertificatePair(privateKey, certificate);
    }
}