/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* 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.
*
*/
package com.sun.org.apache.xml.internal.security.utils;
import java.io.IOException;
import java.io.StringReader;
/**
*
* @author $Author: raul $
*/
public class RFC2253Parser {
/** {@link java.util.logging} logging facility */
/* static java.util.logging.Logger log =
java.util.logging.Logger.getLogger(RFC2253Parser.class.getName());
*/
static boolean _TOXML = true;
/**
* Method rfc2253toXMLdsig
*
* @param dn
* @return normalized string
*
*/
public static String rfc2253toXMLdsig(String dn) {
_TOXML = true;
// Transform from RFC1779 to RFC2253
String normalized = normalize(dn);
return rfctoXML(normalized);
}
/**
* Method xmldsigtoRFC2253
*
* @param dn
* @return normalized string
*/
public static String xmldsigtoRFC2253(String dn) {
_TOXML = false;
// Transform from RFC1779 to RFC2253
String normalized = normalize(dn);
return xmltoRFC(normalized);
}
/**
* Method normalize
*
* @param dn
* @return normalized string
*/
public static String normalize(String dn) {
//if empty string
if ((dn == null) || dn.equals("")) {
return "";
}
try {
String _DN = semicolonToComma(dn);
StringBuffer sb = new StringBuffer();
int i = 0;
int l = 0;
int k;
//for name component
for (int j = 0; (k = _DN.indexOf(",", j)) >= 0; j = k + 1) {
l += countQuotes(_DN, j, k);
if ((k > 0) && (_DN.charAt(k - 1) != '\\') && (l % 2) != 1) {
sb.append(parseRDN(_DN.substring(i, k).trim()) + ",");
i = k + 1;
l = 0;
}
}
sb.append(parseRDN(trim(_DN.substring(i))));
return sb.toString();
} catch (IOException ex) {
return dn;
}
}
/**
* Method parseRDN
*
* @param str
* @return normalized string
* @throws IOException
*/
static String parseRDN(String str) throws IOException {
StringBuffer sb = new StringBuffer();
int i = 0;
int l = 0;
int k;
for (int j = 0; (k = str.indexOf("+", j)) >= 0; j = k + 1) {
l += countQuotes(str, j, k);
if ((k > 0) && (str.charAt(k - 1) != '\\') && (l % 2) != 1) {
sb.append(parseATAV(trim(str.substring(i, k))) + "+");
i = k + 1;
l = 0;
}
}
sb.append(parseATAV(trim(str.substring(i))));
return sb.toString();
}
/**
* Method parseATAV
*
* @param str
* @return normalized string
* @throws IOException
*/
static String parseATAV(String str) throws IOException {
int i = str.indexOf("=");
if ((i == -1) || ((i > 0) && (str.charAt(i - 1) == '\\'))) {
return str;
}
String attrType = normalizeAT(str.substring(0, i));
String attrValue = normalizeV(str.substring(i + 1));
return attrType + "=" + attrValue;
}
/**
* Method normalizeAT
*
* @param str
* @return normalized string
*/
static String normalizeAT(String str) {
String at = str.toUpperCase().trim();
if (at.startsWith("OID")) {
at = at.substring(3);
}
return at;
}
/**
* Method normalizeV
*
* @param str
* @return normalized string
* @throws IOException
*/
static String normalizeV(String str) throws IOException {
String value = trim(str);
if (value.startsWith("\"")) {
StringBuffer sb = new StringBuffer();
StringReader sr = new StringReader(value.substring(1,
value.length() - 1));
int i = 0;
char c;
for (; (i = sr.read()) > -1; ) {
c = (char) i;
//the following char is defined at 4.Relationship with RFC1779 and LDAPv2 inrfc2253
if ((c == ',') || (c == '=') || (c == '+') || (c == '<')
|| (c == '>') || (c == '#') || (c == ';')) {
sb.append('\\');
}
sb.append(c);
}
value = trim(sb.toString());
}
if (_TOXML == true) {
if (value.startsWith("#")) {
value = '\\' + value;
}
} else {
if (value.startsWith("\\#")) {
value = value.substring(1);
}
}
return value;
}
/**
* Method rfctoXML
*
* @param string
* @return normalized string
*/
static String rfctoXML(String string) {
try {
String s = changeLess32toXML(string);
return changeWStoXML(s);
} catch (Exception e) {
return string;
}
}
/**
* Method xmltoRFC
*
* @param string
* @return normalized string
*/
static String xmltoRFC(String string) {
try {
String s = changeLess32toRFC(string);
return changeWStoRFC(s);
} catch (Exception e) {
return string;
}
}
/**
* Method changeLess32toRFC
*
* @param string
* @return normalized string
* @throws IOException
*/
static String changeLess32toRFC(String string) throws IOException {
StringBuffer sb = new StringBuffer();
StringReader sr = new StringReader(string);
int i = 0;
char c;
for (; (i = sr.read()) > -1; ) {
c = (char) i;
if (c == '\\') {
sb.append(c);
char c1 = (char) sr.read();
char c2 = (char) sr.read();
//65 (A) 97 (a)
if ((((c1 >= 48) && (c1 <= 57)) || ((c1 >= 65) && (c1 <= 70)) || ((c1 >= 97) && (c1 <= 102)))
&& (((c2 >= 48) && (c2 <= 57))
|| ((c2 >= 65) && (c2 <= 70))
|| ((c2 >= 97) && (c2 <= 102)))) {
char ch = (char) Byte.parseByte("" + c1 + c2, 16);
sb.append(ch);
} else {
sb.append(c1);
sb.append(c2);
}
} else {
sb.append(c);
}
}
return sb.toString();
}
/**
* Method changeLess32toXML
*
* @param string
* @return normalized string
* @throws IOException
*/
static String changeLess32toXML(String string) throws IOException {
StringBuffer sb = new StringBuffer();
StringReader sr = new StringReader(string);
int i = 0;
for (; (i = sr.read()) > -1; ) {
if (i < 32) {
sb.append('\\');
sb.append(Integer.toHexString(i));
} else {
sb.append((char) i);
}
}
return sb.toString();
}
/**
* Method changeWStoXML
*
* @param string
* @return normalized string
* @throws IOException
*/
static String changeWStoXML(String string) throws IOException {
StringBuffer sb = new StringBuffer();
StringReader sr = new StringReader(string);
int i = 0;
char c;
for (; (i = sr.read()) > -1; ) {
c = (char) i;
if (c == '\\') {
char c1 = (char) sr.read();
if (c1 == ' ') {
sb.append('\\');
String s = "20";
sb.append(s);
} else {
sb.append('\\');
sb.append(c1);
}
} else {
sb.append(c);
}
}
return sb.toString();
}
/**
* Method changeWStoRFC
*
* @param string
* @return normalized string
*/
static String changeWStoRFC(String string) {
StringBuffer sb = new StringBuffer();
int i = 0;
int k;
for (int j = 0; (k = string.indexOf("\\20", j)) >= 0; j = k + 3) {
sb.append(trim(string.substring(i, k)) + "\\ ");
i = k + 3;
}
sb.append(string.substring(i));
return sb.toString();
}
/**
* Method semicolonToComma
*
* @param str
* @return normalized string
*/
static String semicolonToComma(String str) {
return removeWSandReplace(str, ";", ",");
}
/**
* Method removeWhiteSpace
*
* @param str
* @param symbol
* @return normalized string
*/
static String removeWhiteSpace(String str, String symbol) {
return removeWSandReplace(str, symbol, symbol);
}
/**
* Method removeWSandReplace
*
* @param str
* @param symbol
* @param replace
* @return normalized string
*/
static String removeWSandReplace(String str, String symbol, String replace) {
StringBuffer sb = new StringBuffer();
int i = 0;
int l = 0;
int k;
for (int j = 0; (k = str.indexOf(symbol, j)) >= 0; j = k + 1) {
l += countQuotes(str, j, k);
if ((k > 0) && (str.charAt(k - 1) != '\\') && (l % 2) != 1) {
sb.append(trim(str.substring(i, k)) + replace);
i = k + 1;
l = 0;
}
}
sb.append(trim(str.substring(i)));
return sb.toString();
}
/**
* Returns the number of Quotation from i to j
*
* @param s
* @param i
* @param j
* @return number of quotes
*/
private static int countQuotes(String s, int i, int j) {
int k = 0;
for (int l = i; l < j; l++) {
if (s.charAt(l) == '"') {
k++;
}
}
return k;
}
//only for the end of a space character occurring at the end of the string from rfc2253
/**
* Method trim
*
* @param str
* @return the string
*/
static String trim(String str) {
String trimed = str.trim();
int i = str.indexOf(trimed.substring(0)) + trimed.length();
if ((str.length() > i) && trimed.endsWith("\\")
&&!trimed.endsWith("\\\\")) {
if (str.charAt(i) == ' ') {
trimed = trimed + " ";
}
}
return trimed;
}
/**
* Method main
*
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception {
testToXML("CN=\"Steve, Kille\", O=Isode Limited, C=GB");
testToXML("CN=Steve Kille , O=Isode Limited,C=GB");
testToXML("\\ OU=Sales+CN=J. Smith,O=Widget Inc.,C=US\\ \\ ");
testToXML("CN=L. Eagle,O=Sue\\, Grabbit and Runn,C=GB");
testToXML("CN=Before\\0DAfter,O=Test,C=GB");
testToXML("CN=\"L. Eagle,O=Sue, = + < > # ;Grabbit and Runn\",C=GB");
testToXML("1.3.6.1.4.1.1466.0=#04024869,O=Test,C=GB");
{
StringBuffer sb = new StringBuffer();
sb.append('L');
sb.append('u');
sb.append('\uc48d');
sb.append('i');
sb.append('\uc487');
String test7 = "SN=" + sb.toString();
testToXML(test7);
}
testToRFC("CN=\"Steve, Kille\", O=Isode Limited, C=GB");
testToRFC("CN=Steve Kille , O=Isode Limited,C=GB");
testToRFC("\\20OU=Sales+CN=J. Smith,O=Widget Inc.,C=US\\20\\20 ");
testToRFC("CN=L. Eagle,O=Sue\\, Grabbit and Runn,C=GB");
testToRFC("CN=Before\\12After,O=Test,C=GB");
testToRFC("CN=\"L. Eagle,O=Sue, = + < > # ;Grabbit and Runn\",C=GB");
testToRFC("1.3.6.1.4.1.1466.0=\\#04024869,O=Test,C=GB");
{
StringBuffer sb = new StringBuffer();
sb.append('L');
sb.append('u');
sb.append('\uc48d');
sb.append('i');
sb.append('\uc487');
String test7 = "SN=" + sb.toString();
testToRFC(test7);
}
}
/** Field i */
static int counter = 0;
/**
* Method test
*
* @param st
*/
static void testToXML(String st) {
System.out.println("start " + counter++ + ": " + st);
System.out.println(" " + rfc2253toXMLdsig(st));
System.out.println("");
}
/**
* Method testToRFC
*
* @param st
*/
static void testToRFC(String st) {
System.out.println("start " + counter++ + ": " + st);
System.out.println(" " + xmldsigtoRFC2253(st));
System.out.println("");
}
}
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