/**
* ** Hex-encodes a URL argument ** @param sb The StringBuffer where the hex encoded String
* argument will be placed ** @param s The URL argument to encode ** @param obfuscateAll True to
* force hex-encoding on all argument characters ** @return The StringBuffer where the hex-encoded
* String will be placed
*/
public static StringBuffer encodeArg(StringBuffer sb, String s, boolean obfuscateAll) {
if (sb == null) {
sb = new StringBuffer();
}
if (s != null) {
char ch[] = new char[s.length()];
s.getChars(0, s.length(), ch, 0);
for (int i = 0; i < ch.length; i++) {
if (obfuscateAll || URIArg.shouldEncodeArgChar(ch[i])) {
// escape non-alphanumeric characters
sb.append("%");
sb.append(Integer.toHexString(0x100 + (ch[i] & 0xFF)).substring(1));
} else {
// letters and digits are ok as-is
sb.append(ch[i]);
}
}
}
return sb;
}
