1.5.1

- Added ip exemptions in addition to the existing player exemptions./
- Fixing System.out usage warnings that some users were experiencing.
- Fixing MySQL drivers not loading on some servers.
- Fixing bug that would make whitelisted players not load for awhile after server starts

Common/src/main/java/dev/brighten/antivpn/utils/MiscUtils.java

@@ -1,6 +1,16 @@
 package dev.brighten.antivpn.utils;
 
 import java.io.Closeable;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.lang.reflect.Method;
+import java.net.Inet4Address;
+import java.net.InetAddress;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.nio.channels.Channels;
+import java.nio.channels.ReadableByteChannel;
 
 public class MiscUtils {
 
@@ -20,4 +30,44 @@ public class MiscUtils {
         }
     }
 
+    public static boolean isIpv4(String ip)
+    {
+
+        try {
+            InetAddress address = InetAddress.getByName(ip);
+
+            return address instanceof Inet4Address;
+        } catch(Exception e) {
+            return false;
+        }
+    }
+
+    /* Borrowed from FireFlyx ngxdev */
+    public static void download(File file, String from) throws Exception {
+        URL url = new URL(from);
+        InputStream stream = url.openStream();
+        ReadableByteChannel channel = Channels.newChannel(stream);
+        FileOutputStream out = new FileOutputStream(file);
+        out.getChannel().transferFrom(channel, 0L, Long.MAX_VALUE);
+    }
+
+    /* Borrowed from FireFlyx ngxdev */
+    public static ClassLoader injectorClassLoader = MiscUtils.class.getClassLoader();
+
+    /* Borrowed from FireFlyx ngxdev */
+    public static void injectURL(URL url) {
+        try {
+            URLClassLoader systemClassLoader = (URLClassLoader) injectorClassLoader;
+            Class<URLClassLoader> classLoaderClass = URLClassLoader.class;
+
+            try {
+                Method method = classLoaderClass.getDeclaredMethod("addURL", URL.class);
+                method.setAccessible(true);
+                method.invoke(systemClassLoader, url);
+            } catch (Throwable t) {
+                t.printStackTrace();
+            }
+        } catch (Exception e) {
+        }
+    }
 }