init

2025-09-05 18:57:45 +09:00
commit aacc1a389e
1229 changed files with 167963 additions and 0 deletions
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+package com.eactive.eai.util;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class IpUtil {
+	/**
+	 * matchIps에 ip 목록을 컴마(,)구분자로 나열 하고 requestIp와 맞는지 비교
+	 * 
+	 * @param matchIps  컴마구분자 matchIp 목록 예제) 192.168.0.1,192.168.0.0/24,192.168.1.*
+	 * @param requestIp 원격IP
+	 * @return
+	 */
+	public static boolean isMatchIp(String matchIps, String requestIp) {
+		String[] matchIpArr = org.springframework.util.StringUtils.tokenizeToStringArray(matchIps, ",");
+		for (String match : matchIpArr) {
+			if (match.indexOf('*') >= 0) {
+				String matchRegexp = match.replace("\\*", "[0-9]+").trim();
+				Matcher matcher = Pattern.compile(matchRegexp, Pattern.CASE_INSENSITIVE).matcher(requestIp);
+				if (matcher.matches()) {
+					return true;
+				}
+			} else if (match.indexOf('/') >= 0) { // CIDR 표기법 "192.168.0.0/24"
+				org.apache.commons.net.util.SubnetUtils utils = new org.apache.commons.net.util.SubnetUtils(match);
+				if (utils.getInfo().isInRange(requestIp)) {
+					return true;
+				}
+			} else {
+				if (match.equals(requestIp)) {
+					return true;
+				}
+			}
+		}
+		return false;
+	}
+
+	public static void main(String[] args) throws Exception {
+		String matchdIps = "192.168.0.1,192.168.0.0/24,192.168.1.*";
+		String requestIp = "192.168.1.2";
+		if (IpUtil.isMatchIp(matchdIps, requestIp)) {
+			System.out.println(true);
+		} else {
+			System.out.println(false);
+
+		}
+	}
+}