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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);
}
}
}
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