The Tor Browser: mobile/android/thirdparty/ch/boye/httpclientandroidlib/conn/util/InetAddressUtils.java@fc2d59ddac77

     1 /*

     2  * ====================================================================

     3  * Licensed to the Apache Software Foundation (ASF) under one

     4  * or more contributor license agreements.  See the NOTICE file

     5  * distributed with this work for additional information

     6  * regarding copyright ownership.  The ASF licenses this file

     7  * to you under the Apache License, Version 2.0 (the

     8  * "License"); you may not use this file except in compliance

     9  * with the License.  You may obtain a copy of the License at

    10  *

    11  *   http://www.apache.org/licenses/LICENSE-2.0

    12  *

    13  * Unless required by applicable law or agreed to in writing,

    14  * software distributed under the License is distributed on an

    15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

    16  * KIND, either express or implied.  See the License for the

    17  * specific language governing permissions and limitations

    18  * under the License.

    19  * ====================================================================

    20  *

    21  * This software consists of voluntary contributions made by many

    22  * individuals on behalf of the Apache Software Foundation.  For more

    23  * information on the Apache Software Foundation, please see

    24  * <http://www.apache.org/>.

    25  *

    26  */

    28 package ch.boye.httpclientandroidlib.conn.util;

    30 import java.util.regex.Pattern;

    32 import ch.boye.httpclientandroidlib.annotation.Immutable;

    34 /**

    35  * A collection of utilities relating to InetAddresses.

    36  *

    37  * @since 4.0

    38  */

    39 @Immutable

    40 public class InetAddressUtils {

    42     private InetAddressUtils() {

    43     }

    45     private static final Pattern IPV4_PATTERN =

    46         Pattern.compile(

    47                 "^(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}$");

    49     private static final Pattern IPV6_STD_PATTERN =

    50         Pattern.compile(

    51                 "^(?:[0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}$");

    53     private static final Pattern IPV6_HEX_COMPRESSED_PATTERN =

    54         Pattern.compile(

    55                 "^((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)::((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)$");

    57     public static boolean isIPv4Address(final String input) {

    58         return IPV4_PATTERN.matcher(input).matches();

    59     }

    61     public static boolean isIPv6StdAddress(final String input) {

    62         return IPV6_STD_PATTERN.matcher(input).matches();

    63     }

    65     public static boolean isIPv6HexCompressedAddress(final String input) {

    66         return IPV6_HEX_COMPRESSED_PATTERN.matcher(input).matches();

    67     }

    69     public static boolean isIPv6Address(final String input) {

    70         return isIPv6StdAddress(input) || isIPv6HexCompressedAddress(input);

    71     }

    73 }

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