/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.util;
/**
* URL utilities.
*/
public class URLUtil {
/**
* Encode the url with '%' encoding.
*/
public static String encodeURL(String uri)
{
CharBuffer cb = CharBuffer.allocate();
for (int i = 0; i < uri.length(); i++) {
char ch = uri.charAt(i);
switch (ch) {
case '<':
case '>':
case ' ':
case '%':
case '\'':
case '\"':
cb.append('%');
cb.append(encodeHex(ch >> 4));
cb.append(encodeHex(ch));
break;
default:
cb.append(ch);
}
}
return cb.close();
}
public static String byteToHex(int b)
{
CharBuffer cb = CharBuffer.allocate();
cb.append(encodeHex((b & 0xf0) >> 4));
cb.append(encodeHex(b & 0xf));
return cb.close();
}
public static char encodeHex(int ch)
{
ch &= 0xf;
if (ch < 10)
return (char) (ch + '0');
else
return (char) (ch + 'a' - 10);
}
}