Refactoring of Cmpv2Client code for sending CertRequest

Issue-ID: AAF-1036
Signed-off-by: EmmettCox <emmett.cox@est.tech>
Change-Id: Ic0d95b35abb3ca2406b77bbe6e0cd51da0968684

1 files changed, 145 insertions, 0 deletions

diff --git a/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/external/RDN.java b/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/external/RDN.java
new file mode 100644
index 00000000..512a76e1
--- /dev/null
+++ b/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/external/RDN.java
@@ -0,0 +1,145 @@
+/**
+ * ============LICENSE_START====================================================
+ * org.onap.aaf
+ * ===========================================================================
+ * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
+ *
+ * Modifications Copyright (C) 2019 IBM.
+ * ===========================================================================
+ * 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.cmpv2client.external;
+
+import java.util.ArrayList;
+import java.util.List;
+import org.bouncycastle.asn1.ASN1ObjectIdentifier;
+import org.bouncycastle.asn1.x500.style.BCStyle;
+import org.bouncycastle.cert.CertException;
+
+public class RDN {
+
+    public String tag;
+    public String value;
+    public ASN1ObjectIdentifier aoi;
+
+    public RDN(final String tagValue) throws CertException {
+        String[] tv = Split.splitTrim('=', tagValue);
+        switch (tv[0]) {
+            case "cn":
+            case "CN":
+                aoi = BCStyle.CN;
+                break;
+            case "c":
+            case "C":
+                aoi = BCStyle.C;
+                break;
+            case "st":
+            case "ST":
+                aoi = BCStyle.ST;
+                break;
+            case "l":
+            case "L":
+                aoi = BCStyle.L;
+                break;
+            case "o":
+            case "O":
+                aoi = BCStyle.O;
+                break;
+            case "ou":
+            case "OU":
+                aoi = BCStyle.OU;
+                break;
+            case "dc":
+            case "DC":
+                aoi = BCStyle.DC;
+                break;
+            case "gn":
+            case "GN":
+                aoi = BCStyle.GIVENNAME;
+                break;
+            case "sn":
+            case "SN":
+                aoi = BCStyle.SN;
+                break; // surname
+            case "email":
+            case "EMAIL":
+            case "emailaddress":
+            case "EMAILADDRESS":
+                aoi = BCStyle.EmailAddress;
+                break; // should be SAN extension
+            case "initials":
+                aoi = BCStyle.INITIALS;
+                break;
+            case "pseudonym":
+                aoi = BCStyle.PSEUDONYM;
+                break;
+            case "generationQualifier":
+                aoi = BCStyle.GENERATION;
+                break;
+            case "serialNumber":
+                aoi = BCStyle.SERIALNUMBER;
+                break;
+            default:
+                throw new CertException(
+                    "Unknown ASN1ObjectIdentifier for " + tv[0] + " in " + tagValue);
+        }
+        tag = tv[0];
+        value = tv[1];
+    }
+
+    /**
+     * Parse various forms of DNs into appropriate RDNs, which have the ASN1ObjectIdentifier
+     *
+     * @param delim
+     * @param dnString
+     * @return
+     * @throws CertException
+     */
+    public static List<RDN> parse(final char delim, final String dnString) throws CertException {
+        List<RDN> lrnd = new ArrayList<>();
+        StringBuilder sb = new StringBuilder();
+        boolean inQuotes = false;
+        for (int i = 0; i < dnString.length(); ++i) {
+            char c = dnString.charAt(i);
+            if (inQuotes) {
+                if ('"' == c) {
+                    inQuotes = false;
+                } else {
+                    sb.append(dnString.charAt(i));
+                }
+            } else {
+                if ('"' == c) {
+                    inQuotes = true;
+                } else if (delim == c) {
+                    if (sb.length() > 0) {
+                        lrnd.add(new RDN(sb.toString()));
+                        sb.setLength(0);
+                    }
+                } else {
+                    sb.append(dnString.charAt(i));
+                }
+            }
+        }
+        if (sb.indexOf("=") > 0) {
+            lrnd.add(new RDN(sb.toString()));
+        }
+        return lrnd;
+    }
+
+    @Override
+    public String toString() {
+        return tag + '=' + value;
+    }
+}