Added config option ContactMojangServers which disables player skins, but stops the plugin from pinging Mojang servers.

src/main/java/me/libraryaddict/disguise/LibsDisguises.java

@@ -43,6 +43,8 @@ import com.comphenix.protocol.wrappers.WrappedWatchableObject;
 import me.libraryaddict.disguise.utilities.Metrics;
 
 public class LibsDisguises extends JavaPlugin {
+    
+    public static LibsDisguises instance; //I'm sorry Sun MicroSystems and all mighty Java God
 
     @Override
     public void onEnable() {
@@ -103,6 +105,7 @@ public class LibsDisguises extends JavaPlugin {
         getCommand("disguiseclone").setExecutor(new DisguiseCloneCommand(listener));
         getCommand("libsdisguises").setExecutor(new LibsDisguisesCommand());
         registerValues();
+        instance = this;
         try {
             Metrics metrics = new Metrics(this);
             metrics.start();

src/main/java/me/libraryaddict/disguise/disguisetypes/PlayerDisguise.java

@@ -5,6 +5,7 @@ import org.bukkit.entity.Entity;
 import org.bukkit.entity.Player;
 
 import com.comphenix.protocol.wrappers.WrappedGameProfile;
+import me.libraryaddict.disguise.LibsDisguises;
 
 import me.libraryaddict.disguise.disguisetypes.watchers.PlayerWatcher;
 import me.libraryaddict.disguise.utilities.DisguiseUtilities;
@@ -153,6 +154,9 @@ public class PlayerDisguise extends TargetedDisguise {
 
     public PlayerDisguise setSkin(String skinToUse) {
         this.skinToUse = skinToUse;
+        if (!LibsDisguises.instance.getConfig().getBoolean("ContactMojangServers")) {
+            return this;
+        }
         if (skinToUse == null) {
             this.currentLookup = null;
             this.gameProfile = null;
@@ -161,7 +165,6 @@ public class PlayerDisguise extends TargetedDisguise {
                 this.skinToUse = skinToUse.substring(0, 16);
             }
             currentLookup = new LibsProfileLookup() {
-
                 @Override
                 public void onLookup(WrappedGameProfile gameProfile) {
                     if (currentLookup == this && gameProfile != null) {