1 files changed, 87 insertions, 0 deletions
diff --git a/certService/src/main/java/org/onap/aaf/certservice/certification/adapter/CSRMetaBuilder.java b/certService/src/main/java/org/onap/aaf/certservice/certification/adapter/CSRMetaBuilder.java
new file mode 100644
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--- /dev/null
+++ b/certService/src/main/java/org/onap/aaf/certservice/certification/adapter/CSRMetaBuilder.java
@@ -0,0 +1,87 @@
+/*
+ * ============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.security.KeyPair;
+import java.util.Arrays;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.stream.Collectors;
+import org.bouncycastle.asn1.x500.style.BCStyle;
+import org.bouncycastle.asn1.x500.style.IETFUtils;
+import org.bouncycastle.cert.CertException;
+import org.onap.aaf.certservice.certification.configuration.model.Cmpv2Server;
+import org.onap.aaf.certservice.certification.model.CsrModel;
+import org.onap.aaf.certservice.cmpv2client.external.CSRMeta;
+import org.onap.aaf.certservice.cmpv2client.external.RDN;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+@Component
+class CSRMetaBuilder {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(CSRMetaBuilder.class);
+
+    /**
+     * Creates CSRMeta from CsrModel and Cmpv2Server
+     *
+     * @param csrModel Certificate Signing Request from Service external  API
+     * @param server   Cmp Server configuration from cmpServers.json
+     * @return AAF native model  for CSR metadata
+     */
+    CSRMeta build(CsrModel csrModel, Cmpv2Server server) {
+        CSRMeta csrMeta = createCsrMeta(csrModel);
+        addSans(csrModel, csrMeta);
+        csrMeta.keyPair(new KeyPair(csrModel.getPublicKey(), csrModel.getPrivateKey()));
+        csrMeta.password(server.getAuthentication().getIak());
+        csrMeta.setIssuerName(server.getIssuerDN());
+        csrMeta.caUrl(server.getUrl());
+        csrMeta.setName(csrModel.getSubjectData());
+        csrMeta.senderKid(server.getAuthentication().getRv());
+        return csrMeta;
+    }
+
+    private CSRMeta createCsrMeta(CsrModel csrModel) {
+        return new CSRMeta((Arrays.stream(csrModel.getSubjectData().getRDNs()).map(this::convertFromBcRDN)
+                                    .filter(Optional::isPresent).map(Optional::get).collect(Collectors.toList())));
+    }
+
+    private void addSans(CsrModel csrModel, CSRMeta csrMeta) {
+        csrModel.getSans().forEach(csrMeta::san);
+    }
+
+    private String convertRDNToString(org.bouncycastle.asn1.x500.RDN rdn) {
+        return BCStyle.INSTANCE.oidToDisplayName(rdn.getFirst().getType()) + "=" + IETFUtils.valueToString(
+                rdn.getFirst().getValue());
+    }
+
+    private Optional<RDN> convertFromBcRDN(org.bouncycastle.asn1.x500.RDN rdn) {
+        RDN result = null;
+        try {
+            result = new RDN(convertRDNToString(rdn));
+        } catch (CertException e) {
+            LOGGER.error("Exception occurred during convert of RDN", e);
+        }
+        return Optional.ofNullable(result);
+    }
+
+}