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/*
* Copyright 2019 Nokia
* <p>
* 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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* 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.onap.cvc.csar.cc.sol004;
import org.onap.cli.fw.error.OnapCommandException;
import org.onap.cli.fw.schema.OnapCommandSchema;
import org.onap.cvc.csar.CSARArchive;
import org.onap.cvc.csar.FileArchive;
import org.onap.cvc.csar.cc.VTPValidateCSARBase;
import org.onap.cvc.csar.security.CmsSignatureValidator;
import org.onap.cvc.csar.security.CmsSignatureValidatorException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Optional;
@OnapCommandSchema(schema = "vtp-validate-csar-r787965.yaml")
public class VTPValidateCSARR787965 extends VTPValidateCSARBase {
private static final Logger LOG = LoggerFactory.getLogger(VTPValidateCSARR787965.class);
static class CSARErrorInvalidSignature extends CSARArchive.CSARError {
CSARErrorInvalidSignature() {
super("0x3001");
this.message = "Invalid CSAR signature!";
}
}
static class CsarFileNotAvailableError extends CSARArchive.CSARError {
CsarFileNotAvailableError() {
super("0x3002");
this.message = "Missing. Csar file is not available!";
}
}
static class SignatureWithCertificationOnlyWarning extends CSARArchive.CSARError {
SignatureWithCertificationOnlyWarning() {
super("0x3003");
this.message = "Warning. Zip package probably is valid. " +
"It contains only signature with certification cms and csar package. " +
"Unable to verify csar signature.";
}
}
static class BrokenZipPackageError extends CSARArchive.CSARError {
BrokenZipPackageError() {
super("0x3004");
this.message = "Missing. Unable to find certification files.";
}
}
@Override
protected void validateCSAR(CSARArchive csar) throws OnapCommandException {
try {
FileArchive.Workspace workspace = csar.getWorkspace();
if (workspace.isZip()) {
verifyZipStructure(workspace);
}
} catch (Exception e) {
LOG.error("Internal VTPValidateCSARR787965 command error", e);
throw new OnapCommandException("0x3000", "Internal VTPValidateCSARR787965 command error. See logs.");
}
}
private void verifyZipStructure(FileArchive.Workspace workspace) throws IOException, CmsSignatureValidatorException {
final Optional<Path> pathToCsarFile = workspace.getPathToCsarFile();
final Optional<Path> pathToCertFile = workspace.getPathToCertFile();
final Optional<Path> pathToCmsFile = workspace.getPathToCmsFile();
if(!pathToCsarFile.isPresent()) {
this.errors.add(new CsarFileNotAvailableError());
} else {
if (pathToCertFile.isPresent() && pathToCmsFile.isPresent()) {
verifyTwoFileCertification(pathToCsarFile.get(), pathToCertFile.get(), pathToCmsFile.get());
} else if (pathToCmsFile.isPresent()) {
this.errors.add(new SignatureWithCertificationOnlyWarning());
} else {
this.errors.add(new BrokenZipPackageError());
}
}
}
private void verifyTwoFileCertification(Path pathToCsarFile, Path pathToCertFile, Path pathToCmsFile) throws IOException, CmsSignatureValidatorException {
final CmsSignatureValidator securityManager = new CmsSignatureValidator();
byte[] csarContent = Files.readAllBytes(pathToCsarFile);
byte[] signature = Files.readAllBytes(pathToCmsFile);
byte[] publicCertification = Files.readAllBytes(pathToCertFile);
if (!securityManager.verifySignedData(signature, publicCertification,csarContent)) {
this.errors.add(new CSARErrorInvalidSignature());
}
}
@Override
protected String getVnfReqsNo() {
return "R787965";
}
}
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