Wrap player's ICommandListener so that our permission system can handle permission

for vanilla commands

src/main/java/org/bukkit/craftbukkit/command/ListenerWrapper.java

@@ -0,0 +1,69 @@
+package org.bukkit.craftbukkit.command;
+
+import net.minecraft.server.BlockPosition;
+import net.minecraft.server.Entity;
+import net.minecraft.server.EnumCommandResult;
+import net.minecraft.server.IChatBaseComponent;
+import net.minecraft.server.ICommandListener;
+import net.minecraft.server.Vec3D;
+import net.minecraft.server.World;
+
+public class ListenerWrapper implements ICommandListener {
+
+    private final ICommandListener listener;
+
+    public ListenerWrapper(ICommandListener listener) {
+        this.listener = listener;
+    }
+
+    @Override
+    public String getName() {
+        return listener.getName();
+    }
+
+    @Override
+    public IChatBaseComponent getScoreboardDisplayName() {
+        return listener.getScoreboardDisplayName();
+    }
+
+    @Override
+    public void sendMessage(IChatBaseComponent icbc) {
+        listener.sendMessage(icbc);
+    }
+
+    @Override
+    public boolean a(int i, String string) {
+        return true; // Give access to all commands as we do our own perm check
+    }
+
+    @Override
+    public BlockPosition getChunkCoordinates() {
+        return listener.getChunkCoordinates();
+    }
+
+    @Override
+    public Vec3D d() {
+        return listener.d();
+    }
+
+    @Override
+    public World getWorld() {
+        return listener.getWorld();
+    }
+
+    @Override
+    public Entity f() {
+        return listener.f();
+    }
+
+    @Override
+    public boolean getSendCommandFeedback() {
+        return listener.getSendCommandFeedback();
+    }
+
+    @Override
+    public void a(EnumCommandResult ecr, int i) {
+        listener.a(ecr, i);
+    }
+
+}

src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java

@@ -127,7 +127,7 @@ public final class VanillaCommandWrapper extends VanillaCommand {
 
     private ICommandListener getListener(CommandSender sender) {
         if (sender instanceof Player) {
-            return ((CraftPlayer) sender).getHandle();
+            return new ListenerWrapper(((CraftPlayer) sender).getHandle());
         }
         if (sender instanceof BlockCommandSender) {
             return ((CraftBlockCommandSender) sender).getTileEntity();