1 files changed, 79 insertions, 0 deletions
diff --git a/base/util/test/com/netscape/security/util/StringTestUtil.java b/base/util/test/com/netscape/security/util/StringTestUtil.java
new file mode 100644
index 000000000..16810581c
--- /dev/null
+++ b/base/util/test/com/netscape/security/util/StringTestUtil.java
@@ -0,0 +1,79 @@
+package com.netscape.security.util;
+
+import netscape.security.util.DerInputStream;
+import netscape.security.util.DerOutputStream;
+import netscape.security.util.DerValue;
+
+public class StringTestUtil {
+
+    public final static String NULL_CHARS = "\u0000";
+
+    public final static String PRINTABLE_CHARS =
+            "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 \'()+,-./:=?";
+
+    public final static String NON_PRINTABLE_CHARS = "\"\\";
+
+    public final static String CONTROL_CHARS = "\b\t\n\f\r";
+
+    public final static String MULTIBYTE_CHARS = "我爱你"; // I love you
+
+    public static String toString(byte[] array) {
+
+        StringBuffer sb = new StringBuffer();
+        for (int i = 0; i < array.length; i++) {
+            if (i > 0)
+                sb.append(" ");
+            sb.append(Integer.toHexString(0xff & array[i] | 0x100).substring(1).toUpperCase());
+        }
+
+        return sb.toString();
+    }
+
+    public static byte[] normalizeUnicode(byte[] data) throws Exception {
+
+        DerValue value = new DerValue(data);
+        byte[] tmp = value.data.toByteArray();
+
+        if (tmp[0] == -2 && tmp[1] == -1) { // remove optional big-endian byte-order mark
+
+            byte tag = value.tag;
+            int length = value.length() - 2;
+
+            DerOutputStream os = new DerOutputStream();
+            os.putTag((byte) 0, false, tag);
+            os.putLength(length);
+            os.write(tmp, 2, length);
+
+            return os.toByteArray();
+        }
+
+        return data;
+    }
+
+    public static byte[] encode(byte tag, String string) throws Exception {
+        DerOutputStream os = new DerOutputStream();
+        os.putStringType(tag, string);
+        return os.toByteArray();
+    }
+
+    public static String decode(byte tag, byte[] bytes) throws Exception {
+        DerInputStream is = new DerInputStream(bytes);
+
+        switch (tag) {
+        case DerValue.tag_BMPString:
+            return is.getBMPString();
+        case DerValue.tag_IA5String:
+            return is.getIA5String();
+        case DerValue.tag_PrintableString:
+            return is.getPrintableString();
+        case DerValue.tag_T61String:
+            return is.getT61String();
+        case DerValue.tag_UniversalString:
+            return is.getUniversalString();
+        case DerValue.tag_UTF8String:
+            return is.getDerValue().getUTF8String();
+        default:
+            throw new Exception("Unsupported tag: " + tag);
+        }
+    }
+}