62 lines
1.9 KiB
Java
62 lines
1.9 KiB
Java
/**
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*
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* Copyright 2015 Florian Schmaus
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smack.util;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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public class IpAddressUtil {
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private static final Pattern IPV4_PATTERN = Pattern.compile("^(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})$");
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public static boolean isIPv4LiteralAddress(String string) {
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Matcher matcher = IPV4_PATTERN.matcher(string);
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if (!matcher.matches()) {
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return false;
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}
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assert matcher.groupCount() == 4;
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for (int i = 1; i <= 4; i++) {
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String ipSegment = matcher.group(i);
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int ipSegmentInt;
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try {
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ipSegmentInt = Integer.valueOf(ipSegment);
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} catch (NumberFormatException e) {
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throw new AssertionError(e);
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}
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if (ipSegmentInt > 255) {
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return false;
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}
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}
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return true;
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}
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public static boolean isIPv6LiteralAddress(final String string) {
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final String[] octets = string.split(":");
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if (octets.length != 8) {
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return false;
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}
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// TODO handle compressed zeros and validate octets
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return true;
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}
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public static boolean isIpAddress(String string) {
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return isIPv4LiteralAddress(string) || isIPv6LiteralAddress(string);
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}
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}
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