fingerprint

src/main/java/stirling/software/SPDF/utils/GeneralUtils.java

@@ -30,6 +30,11 @@ import com.fathzer.soft.javaluator.DoubleEvaluator;
 
 import io.github.pixee.security.HostValidator;
 import io.github.pixee.security.Urls;
+import java.net.InetAddress;
+import java.net.NetworkInterface;
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.util.Enumeration;
 
 public class GeneralUtils {
 
@@ -301,4 +306,47 @@ public class GeneralUtils {
         }
         settingsYml.save();
     }
+    
+    public static String generateMachineFingerprint() {
+        try {
+            // Get the MAC address
+            StringBuilder sb = new StringBuilder();
+            InetAddress ip = InetAddress.getLocalHost();
+            NetworkInterface network = NetworkInterface.getByInetAddress(ip);
+
+            if (network == null) {
+                Enumeration<NetworkInterface> networks = NetworkInterface.getNetworkInterfaces();
+                while (networks.hasMoreElements()) {
+                    NetworkInterface net = networks.nextElement();
+                    byte[] mac = net.getHardwareAddress();
+                    if (mac != null) {
+                        for (int i = 0; i < mac.length; i++) {
+                            sb.append(String.format("%02X", mac[i]));
+                        }
+                        break; // Use the first network interface with a MAC address
+                    }
+                }
+            } else {
+                byte[] mac = network.getHardwareAddress();
+                if (mac != null) {
+                    for (int i = 0; i < mac.length; i++) {
+                        sb.append(String.format("%02X", mac[i]));
+                    }
+                }
+            }
+
+            // Hash the MAC address for privacy and consistency
+            MessageDigest md = MessageDigest.getInstance("SHA-256");
+            byte[] hash = md.digest(sb.toString().getBytes(StandardCharsets.UTF_8));
+            StringBuilder fingerprint = new StringBuilder();
+            for (byte b : hash) {
+                fingerprint.append(String.format("%02x", b));
+            }
+
+            return fingerprint.toString();
+
+        } catch (Exception e) {
+        	return "GenericID";
+        }
+    }
 }