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/*
* ============LICENSE_START=======================================================
* Cert Service
* ================================================================================
* Copyright (C) 2020 Nokia. All rights reserved.
* ================================================================================
* Licensed 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.
* ============LICENSE_END=========================================================
*/
package org.onap.aaf.certservice.certification.adapter;
import java.io.IOException;
import java.io.StringWriter;
import java.security.cert.X509Certificate;
import java.util.List;
import java.util.stream.Collectors;
import org.bouncycastle.openssl.jcajce.JcaMiscPEMGenerator;
import org.bouncycastle.util.io.pem.PemObjectGenerator;
import org.bouncycastle.util.io.pem.PemWriter;
import org.onap.aaf.certservice.certification.configuration.model.Cmpv2Server;
import org.onap.aaf.certservice.certification.model.CertificationModel;
import org.onap.aaf.certservice.certification.model.CsrModel;
import org.onap.aaf.certservice.cmpv2client.api.CmpClient;
import org.onap.aaf.certservice.cmpv2client.exceptions.CmpClientException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Component
public class Cmpv2ClientAdapter {
private static final Logger LOGGER = LoggerFactory.getLogger(Cmpv2ClientAdapter.class);
private final CmpClient cmpClient;
@Autowired
public Cmpv2ClientAdapter(CmpClient cmpClient) {
this.cmpClient = cmpClient;
}
/**
* Uses CmpClient to call to Cmp Server and gather certificates data
*
* @param csrModel Certificate Signing Request from Service external API
* @param server Cmp Server configuration from cmpServers.json
* @return container for returned certificates
* @throws CmpClientException Exceptions which comes from Cmp Client
*/
public CertificationModel callCmpClient(CsrModel csrModel, Cmpv2Server server)
throws CmpClientException {
List<List<X509Certificate>> certificates = cmpClient.createCertificate(csrModel, server);
return new CertificationModel(convertFromX509CertificateListToPemList(certificates.get(0)),
convertFromX509CertificateListToPemList(certificates.get(1)));
}
private String convertFromX509CertificateToPem(X509Certificate certificate) {
StringWriter sw = new StringWriter();
try (PemWriter pw = new PemWriter(sw)) {
PemObjectGenerator gen = new JcaMiscPEMGenerator(certificate);
pw.writeObject(gen);
} catch (IOException e) {
LOGGER.error("Exception occurred during convert of X509 certificate", e);
}
return sw.toString();
}
private List<String> convertFromX509CertificateListToPemList(List<X509Certificate> certificates) {
return certificates.stream().map(this::convertFromX509CertificateToPem).filter(cert -> !cert.isEmpty())
.collect(Collectors.toList());
}
}
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