1 files changed, 157 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..25017b8a
--- /dev/null
+++ b/certService/src/main/java/org/onap/aaf/certservice/cmpv2client/external/Rdn.java
@@ -0,0 +1,157 @@
+/*
+ * ============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.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import org.bouncycastle.asn1.ASN1ObjectIdentifier;
+import org.bouncycastle.asn1.x500.style.BCStyle;
+import org.bouncycastle.cert.CertException;
+
+public class Rdn {
+
+    private String tag;
+    private String value;
+    private ASN1ObjectIdentifier aoi;
+
+    public String getValue() {
+        return value;
+    }
+
+    public Rdn(final String tag, final String value) throws CertException {
+        this.tag = tag;
+        this.value = value;
+        this.aoi = getAoi(tag);
+    }
+
+    public Rdn(final String tagValue) throws CertException {
+        List<String> tv = parseRdn("=", tagValue);
+        this.tag = tv.get(0);
+        this.value = tv.get(1);
+        this.aoi = getAoi(this.tag);
+    }
+
+    /**
+     * Splits RDN as string by given delimiter, then trims every part.
+     *
+     * @param splitBy Delimiter which splits value
+     * @param value Value to be splitted
+     * @return List of splitted and trimmed strings
+     */
+    static List<String> parseRdn(String splitBy, String value) {
+        String[] splitted = value.split(splitBy);
+        return Arrays.stream(splitted)
+                .map(String::trim)
+                .collect(Collectors.toList());
+    }
+    /**
+     * 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 currentCharacter = dnString.charAt(i);
+            if (inQuotes) {
+                if ('"' == currentCharacter) {
+                    inQuotes = false;
+                } else {
+                    sb.append(dnString.charAt(i));
+                }
+            } else {
+                if ('"' == currentCharacter) {
+                    inQuotes = true;
+                } else if (delim == currentCharacter) {
+                    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;
+    }
+
+    ASN1ObjectIdentifier getAoi() {
+        return aoi;
+    }
+
+    ASN1ObjectIdentifier getAoi(String tag) throws CertException {
+        switch (tag.toLowerCase()) {
+            case "cn":
+                return BCStyle.CN;
+            case "c":
+                return BCStyle.C;
+            case "st":
+                return BCStyle.ST;
+            case "l":
+                return BCStyle.L;
+            case "o":
+                return BCStyle.O;
+            case "ou":
+                return BCStyle.OU;
+            case "dc":
+                return BCStyle.DC;
+            case "gn":
+                return BCStyle.GIVENNAME;
+            case "sn":
+                return BCStyle.SN;
+            case "email":
+            case "e":
+            case "emailaddress":
+                return BCStyle.EmailAddress;
+            case "initials":
+                return BCStyle.INITIALS;
+            case "pseudonym":
+                return BCStyle.PSEUDONYM;
+            case "generationqualifier":
+                return BCStyle.GENERATION;
+            case "serialnumber":
+                return BCStyle.SERIALNUMBER;
+            default:
+                throw new CertException(
+                        "Unknown ASN1ObjectIdentifier for tag " + tag);
+        }
+    }
+}