1 files changed, 123 insertions, 0 deletions
diff --git a/base/util/src/netscape/security/x509/IA5StringConverter.java b/base/util/src/netscape/security/x509/IA5StringConverter.java
new file mode 100644
index 000000000..eced75a58
--- /dev/null
+++ b/base/util/src/netscape/security/x509/IA5StringConverter.java
@@ -0,0 +1,123 @@
+// --- BEGIN COPYRIGHT BLOCK ---
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+//
+// (C) 2007 Red Hat, Inc.
+// All rights reserved.
+// --- END COPYRIGHT BLOCK ---
+package netscape.security.x509;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.CharBuffer;
+import java.nio.charset.CharacterCodingException;
+import java.nio.charset.CharsetEncoder;
+
+import netscape.security.util.ASN1CharStrConvMap;
+import netscape.security.util.DerValue;
+
+/**
+ * A AVAValueConverter that converts a IA5String attribute to a DerValue
+ * and vice versa. An example an attribute that is a IA5String string is "E".
+ * 
+ * @see AVAValueConverter
+ * 
+ * @author Lily Hsiao, Slava Galperin at Netscape Communications, Inc.
+ */
+
+public class IA5StringConverter implements AVAValueConverter {
+    // public constructors 
+
+    /* 
+     * Contructs a IA5String Converter.
+     */
+    public IA5StringConverter() {
+    }
+
+    /*
+     * Converts a string with ASN.1 IA5String characters to a DerValue.
+     * 
+     * @param valueString 	a string with IA5String characters.
+     * 
+     * @return			a DerValue. 
+     * 
+     * @exception IOException	if a IA5String encoder is not
+     *				available for the conversion.
+     */
+    public DerValue getValue(String valueString)
+            throws IOException {
+        return getValue(valueString, null);
+    }
+
+    public DerValue getValue(String valueString, byte[] tags) throws IOException {
+        try {
+            CharsetEncoder encoder = ASN1CharStrConvMap.getDefault().getEncoder(DerValue.tag_IA5String);
+            if (encoder == null)
+                throw new IOException("No encoder for IA5String");
+
+            CharBuffer charBuffer = CharBuffer.wrap(valueString.toCharArray());
+            ByteBuffer byteBuffer = encoder.encode(charBuffer);
+
+            return new DerValue(DerValue.tag_IA5String,
+                    byteBuffer.array(), byteBuffer.arrayOffset(), byteBuffer.limit());
+
+        } catch (CharacterCodingException e) {
+            throw new IllegalArgumentException("Invalid IA5String AVA Value string");
+        }
+    }
+
+    /*
+     * Converts a BER encoded value of IA5String to a DER encoded value.
+     * Checks if the BER encoded value is a IA5String.
+     * NOTE only DER encoding is currently supported on for the BER
+     * encoded value.
+     * 
+     * @param berStream 	a byte array of the BER encoded value.
+     * 
+     * @return 			a DerValue. 
+     * 
+     * @exception IOException   if the BER value cannot be converted
+     *				to a IA5String DER value.
+     */
+    public DerValue getValue(byte[] berStream)
+            throws IOException {
+        DerValue value = new DerValue(berStream);
+        if (value.tag == DerValue.tag_IA5String)
+            return value;
+        if (value.tag == DerValue.tag_PrintableString)
+            return value;
+        throw new IOException("Invalid IA5String AVA Value.");
+    }
+
+    /*
+     * Converts a DerValue of IA5String to a java string with IA5String 
+     * characters. 
+     * 
+     * @param avaValue 	a DerValue.
+     *
+     * @return 		a string with IA5String characters.
+     *
+     * @exception IOException 	if the DerValue is not a IA5String i.e.
+     *				The DerValue cannot be converted to a string
+     *				with IA5String characters.
+     */
+    public String getAsString(DerValue avaValue)
+            throws IOException {
+        if (avaValue.tag == DerValue.tag_IA5String)
+            return avaValue.getIA5String();
+        if (avaValue.tag == DerValue.tag_PrintableString)
+            return avaValue.getPrintableString();
+        throw new IOException("Invalid IA5String AVA Value.");
+    }
+
+}