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      1 /*
      2  * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/conn/util/InetAddressUtils.java $
      3  * $Revision: 652020 $
      4  * $Date: 2008-04-27 14:23:31 -0700 (Sun, 27 Apr 2008) $
      5  *
      6  * ====================================================================
      7  * Licensed to the Apache Software Foundation (ASF) under one
      8  * or more contributor license agreements.  See the NOTICE file
      9  * distributed with this work for additional information
     10  * regarding copyright ownership.  The ASF licenses this file
     11  * to you under the Apache License, Version 2.0 (the
     12  * "License"); you may not use this file except in compliance
     13  * with the License.  You may obtain a copy of the License at
     14  *
     15  *   http://www.apache.org/licenses/LICENSE-2.0
     16  *
     17  * Unless required by applicable law or agreed to in writing,
     18  * software distributed under the License is distributed on an
     19  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     20  * KIND, either express or implied.  See the License for the
     21  * specific language governing permissions and limitations
     22  * under the License.
     23  * ====================================================================
     24  *
     25  * This software consists of voluntary contributions made by many
     26  * individuals on behalf of the Apache Software Foundation.  For more
     27  * information on the Apache Software Foundation, please see
     28  * <http://www.apache.org/>.
     29  *
     30  */
     31 
     32 package org.apache.http.conn.util;
     33 
     34 import java.util.regex.Pattern;
     35 
     36 /**
     37  * A collection of utilities relating to InetAddresses.
     38  *
     39  * @deprecated Please use {@link java.net.URL#openConnection} instead.
     40  *     Please visit <a href="http://android-developers.blogspot.com/2011/09/androids-http-clients.html">this webpage</a>
     41  *     for further details.
     42  */
     43 @Deprecated
     44 public class InetAddressUtils {
     45 
     46     private InetAddressUtils() {
     47     }
     48 
     49     private static final Pattern IPV4_PATTERN =
     50         Pattern.compile(
     51                 "^(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}$");
     52 
     53     private static final Pattern IPV6_STD_PATTERN =
     54         Pattern.compile(
     55                 "^(?:[0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}$");
     56 
     57     private static final Pattern IPV6_HEX_COMPRESSED_PATTERN =
     58         Pattern.compile(
     59                 "^((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)::((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)$");
     60 
     61     public static boolean isIPv4Address(final String input) {
     62         return IPV4_PATTERN.matcher(input).matches();
     63     }
     64 
     65     public static boolean isIPv6StdAddress(final String input) {
     66         return IPV6_STD_PATTERN.matcher(input).matches();
     67     }
     68 
     69     public static boolean isIPv6HexCompressedAddress(final String input) {
     70         return IPV6_HEX_COMPRESSED_PATTERN.matcher(input).matches();
     71     }
     72 
     73     public static boolean isIPv6Address(final String input) {
     74         return isIPv6StdAddress(input) || isIPv6HexCompressedAddress(input);
     75     }
     76 
     77 }
     78