2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2020 Nokia. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
21 package org.onap.oom.certservice.certification;
23 import java.util.Base64;
24 import java.util.Objects;
25 import java.util.Optional;
27 import org.bouncycastle.pkcs.PKCS10CertificationRequest;
28 import org.bouncycastle.util.io.pem.PemObject;
29 import org.onap.oom.certservice.certification.exception.CsrDecryptionException;
30 import org.onap.oom.certservice.certification.exception.DecryptionException;
31 import org.onap.oom.certservice.certification.exception.KeyDecryptionException;
32 import org.onap.oom.certservice.certification.model.CsrModel;
33 import org.slf4j.Logger;
34 import org.slf4j.LoggerFactory;
35 import org.springframework.stereotype.Service;
39 public class CsrModelFactory {
41 private final PemObjectFactory pemObjectFactory
42 = new PemObjectFactory();
43 private final Pkcs10CertificationRequestFactory certificationRequestFactory
44 = new Pkcs10CertificationRequestFactory();
47 public CsrModel createCsrModel(StringBase64 csr, StringBase64 privateKey)
48 throws DecryptionException {
49 PKCS10CertificationRequest decodedCsr = decodeCsr(csr);
50 PemObject decodedPrivateKey = decodePrivateKey(privateKey);
51 return new CsrModel.CsrModelBuilder(decodedCsr, decodedPrivateKey).build();
54 private PemObject decodePrivateKey(StringBase64 privateKey)
55 throws KeyDecryptionException {
57 return privateKey.asString()
58 .flatMap(pemObjectFactory::createPemObject)
60 () -> new KeyDecryptionException("Incorrect Key, decryption failed")
64 private PKCS10CertificationRequest decodeCsr(StringBase64 csr)
65 throws CsrDecryptionException {
67 .flatMap(pemObjectFactory::createPemObject)
68 .flatMap(certificationRequestFactory::createPkcs10CertificationRequest)
70 () -> new CsrDecryptionException("Incorrect CSR, decryption failed")
74 public static class StringBase64 {
75 private final String value;
76 private final Base64.Decoder decoder = Base64.getDecoder();
77 private static final Logger LOGGER = LoggerFactory.getLogger(StringBase64.class);
79 public StringBase64(String value) {
83 public Optional<String> asString() {
85 String decodedString = new String(decoder.decode(value));
86 return Optional.of(decodedString);
87 } catch (RuntimeException e) {
88 LOGGER.error("Exception occurred during decoding:", e);
89 return Optional.empty();
94 public boolean equals(Object otherObject) {
95 if (this == otherObject) {
98 if (otherObject == null || getClass() != otherObject.getClass()) {
101 StringBase64 that = (StringBase64) otherObject;
102 return Objects.equals(value, that.value);
106 public int hashCode() {
107 return value.hashCode();