Version 2.0.0-SNAPSHOT: Updated to use SQLLite with versioning. Needed a recode of the database system to allow for future updates.

2026-06-02 09:52:19 +00:00 · 2025-02-01 10:45:53 -05:00
parent 353b7dad78
commit 069142a06b
28 changed files with 624 additions and 1400 deletions
@@ -0,0 +1,93 @@
+package dev.brighten.antivpn.utils;
+
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.net.Inet4Address;
+import java.net.Inet6Address;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.Optional;
+
+public class IpUtils {
+    public static Optional<BigDecimal> getIpDecimal(String address) {
+        try {
+            InetAddress inet = InetAddress.getByName(address);
+
+            if(inet instanceof Inet4Address) {
+                return Optional.of(BigDecimal.valueOf(ipv4ToLong(address)));
+            } return Optional.of(new BigDecimal(ipv6ToDecimalFormat(address)));
+        } catch(Exception e) {
+            return Optional.empty();
+        }
+    }
+
+    public static long ipv4ToLong(String address) {
+        String[] addrArray = address.split("\\.");
+
+        long ipDecimal = 0;
+
+        for (int i = 0; i < addrArray.length; i++) {
+
+            int power = 3 - i;
+            ipDecimal += ((Integer.parseInt(addrArray[i]) % 256 * Math.pow(256, power)));
+        }
+
+        return ipDecimal;
+    }
+
+    public static String getIpv4(long ip) {
+        StringBuilder sb = new StringBuilder(15);
+
+        for (int i = 0; i < 4; i++) {
+            sb.insert(0, ip & 0xff);
+
+            if (i < 3) {
+                sb.insert(0, '.');
+            }
+
+            ip >>= 8;
+        }
+
+        return sb.toString();
+    }
+
+    public static boolean isIpv4(BigDecimal ip) {
+        return ip.compareTo(BigDecimal.valueOf(4294967295L)) <= 0;
+    }
+
+    public static boolean isIpv6(BigDecimal ip) {
+        return ip.compareTo(BigDecimal.valueOf(4294967295L)) > 0;
+    }
+    public static boolean isIpv4(String ip) {
+        return ip.matches("^(?:[0-9]{1,3}\\.){3}[0-9]{1,3}$");
+    }
+
+    public static boolean isNotIp(String ip) {
+        return !isIpv4(ip) && !isIpv6(ip);
+    }
+
+    public static boolean isIpv6(String ip) {
+        return ip.matches("^([0-9a-fA-F]{1,4}:){7}([0-9a-fA-F]{1,4}|:)$|^(([0-9a-fA-F]{1,4}:){0,6}([0-9a-fA-F]{1,4}|:))?(::([0-9a-fA-F]{1,4}:){0,5}([0-9a-fA-F]{1,4}|:))?$");
+    }
+
+    public static String getIpv4(BigDecimal ip) {
+        try {
+            return Inet4Address.getByAddress(ip.toBigInteger().toByteArray()).getHostAddress();
+        } catch (UnknownHostException e) {
+            return "Error";
+        }
+    }
+
+    public static String getIpv6(BigDecimal ip) {
+        try {
+            return Inet6Address.getByAddress(ip.toBigInteger().toByteArray()).getHostAddress();
+        } catch (UnknownHostException e) {
+            return "Error";
+        }
+    }
+
+    public static BigInteger ipv6ToDecimalFormat(String ipAddress) throws UnknownHostException {
+        return new BigInteger(1, Inet6Address.getByName(ipAddress).getAddress());
+    }
+
+}