jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/rngom/util/Uri.java@e530533619ec

     1 /*

     2  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 /*

    26  * Copyright (C) 2004-2011

    27  *

    28  * Permission is hereby granted, free of charge, to any person obtaining a copy

    29  * of this software and associated documentation files (the "Software"), to deal

    30  * in the Software without restriction, including without limitation the rights

    31  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

    32  * copies of the Software, and to permit persons to whom the Software is

    33  * furnished to do so, subject to the following conditions:

    34  *

    35  * The above copyright notice and this permission notice shall be included in

    36  * all copies or substantial portions of the Software.

    37  *

    38  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

    39  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

    40  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

    41  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

    42  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

    43  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

    44  * THE SOFTWARE.

    45  */

    46 package com.sun.xml.internal.rngom.util;

    48 import java.net.URL;

    49 import java.net.MalformedURLException;

    50 import java.io.UnsupportedEncodingException;

    52 public class Uri {

    53   private static String utf8 = "UTF-8";

    55   public static boolean isValid(String s) {

    56     return isValidPercent(s) && isValidFragment(s) && isValidScheme(s);

    57   }

    59   private static final String HEX_DIGITS = "0123456789abcdef";

    61   public static String escapeDisallowedChars(String s) {

    62     StringBuffer buf = null;

    63     int len = s.length();

    64     int done = 0;

    65     for (;;) {

    66       int i = done;

    67       for (;;) {

    68         if (i == len) {

    69           if (done == 0)

    70             return s;

    71           break;

    72         }

    73         if (isExcluded(s.charAt(i)))

    74           break;

    75         i++;

    76       }

    77       if (buf == null)

    78         buf = new StringBuffer();

    79       if (i > done) {

    80         buf.append(s.substring(done, i));

    81         done = i;

    82       }

    83       if (i == len)

    84         break;

    85       for (i++; i < len && isExcluded(s.charAt(i)); i++)

    86         ;

    87       String tem = s.substring(done, i);

    88       byte[] bytes;

    89       try {

    90         bytes = tem.getBytes(utf8);

    91       }

    92       catch (UnsupportedEncodingException e) {

    93         utf8 = "UTF8";

    94         try {

    95           bytes = tem.getBytes(utf8);

    96         }

    97         catch (UnsupportedEncodingException e2) {

    98           // Give up

    99           return s;

   100         }

   101       }

   102       for (int j = 0; j < bytes.length; j++) {

   103         buf.append('%');

   104         buf.append(HEX_DIGITS.charAt((bytes[j] & 0xFF) >> 4));

   105         buf.append(HEX_DIGITS.charAt(bytes[j] & 0xF));

   106       }

   107       done = i;

   108     }

   109     return buf.toString();

   110   }

   112   private static final String excluded = "<>\"{}|\\^`";

   114   private static boolean isExcluded(char c) {

   115     return c <= 0x20 || c >= 0x7F || excluded.indexOf(c) >= 0;

   116   }

   118   private static boolean isAlpha(char c) {

   119     return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z');

   120   }

   122   private static boolean isHexDigit(char c) {

   123     return ('a' <= c && c <= 'f') || ('A' <= c && c <= 'F') || isDigit(c);

   124   }

   126   private static boolean isDigit(char c) {

   127     return '0' <= c && c <= '9';

   128   }

   130   private static boolean isSchemeChar(char c) {

   131     return isAlpha(c) || isDigit(c) || c == '+' || c == '-' || c =='.';

   132   }

   134   private static boolean isValidPercent(String s) {

   135     int len = s.length();

   136     for (int i = 0; i < len; i++)

   137       if (s.charAt(i) == '%') {

   138         if (i + 2 >= len)

   139           return false;

   140         else if (!isHexDigit(s.charAt(i + 1))

   141                  || !isHexDigit(s.charAt(i + 2)))

   142           return false;

   143       }

   144     return true;

   145   }

   147   private static boolean isValidFragment(String s) {

   148     int i = s.indexOf('#');

   149     return i < 0 || s.indexOf('#', i + 1) < 0;

   150   }

   152   private static boolean isValidScheme(String s) {

   153     if (!isAbsolute(s))

   154       return true;

   155     int i = s.indexOf(':');

   156     if (i == 0

   157         || i + 1 == s.length()

   158         || !isAlpha(s.charAt(0)))

   159       return false;

   160     while (--i > 0)

   161       if (!isSchemeChar(s.charAt(i)))

   162         return false;

   163     return true;

   164   }

   166   public static String resolve(String baseUri, String uriReference) {

   167     if (!isAbsolute(uriReference) && baseUri != null && isAbsolute(baseUri)) {

   168       try {

   169         return new URL(new URL(baseUri), uriReference).toString();

   170       }

   171       catch (MalformedURLException e) { }

   172     }

   173     return uriReference;

   174   }

   176   public static boolean hasFragmentId(String uri) {

   177     return uri.indexOf('#') >= 0;

   178   }

   180   public static boolean isAbsolute(String uri) {

   181     int i = uri.indexOf(':');

   182     if (i < 0)

   183       return false;

   184     while (--i >= 0) {

   185       switch (uri.charAt(i)) {

   186       case '#':

   187       case '/':

   188       case '?':

   189         return false;

   190       }

   191     }

   192     return true;

   193   }

   194 }

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