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/*
* ============LICENSE_START=======================================================
* Copyright (C) 2021 Nordix Foundation
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdc.be.csar.security;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.security.cert.Certificate;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import org.openecomp.sdc.be.csar.security.api.CertificateReader;
import org.openecomp.sdc.be.csar.security.exception.LoadCertificateException;
import org.springframework.stereotype.Component;
@Component
public class X509CertificateReader implements CertificateReader {
/**
* Reads X.509 certificate file.
*
* @param certFile the certificate file
* @return the read certificate
* @throws LoadCertificateException when an error has occurred while reading the certificate
*/
@Override
public Certificate loadCertificate(final File certFile) {
try (final FileInputStream fi = new FileInputStream(certFile)) {
return buildCertificate(fi);
} catch (final Exception e) {
final String errorMsg = "Could not load the certificate from given file '%s'";
throw new LoadCertificateException(String.format(errorMsg, certFile), e);
}
}
private Certificate buildCertificate(final InputStream certificateInputStream) throws CertificateException {
final CertificateFactory factory = CertificateFactory.getInstance("X.509");
return factory.generateCertificate(certificateInputStream);
}
}
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