Panilla

Panilla (the name) is a combination of the word Packet and Vanilla (as in Vanilla Minecraft).

Support the development of this plugin and purchase a precompiled .jar file on SpigotMC (or compile your own for free)

Overview

Panilla is a plugin for CraftBukkit based Minecraft servers (CraftBukkit, Spigot, Paper, etc) to prevent abusive NBT and potentially harmful packets.

With this plugin, you will be able to prevent:

• Unobtainable Enchantments (eg. Sharpness X)
• Unobtainable Potions (eg. Insta-kill)
• Unobtainable Fireworks
• Crash Books
• Crash Signs
• Crash Chests/Shulker Boxes
• Crash Potions (invalid CustomPotionColor\s)
• Oversized packets (which crash the client)
• Long item names/item lore
• Additional "AttributeModifiers" on items (eg. Speed)
• Unbreakable items
• and more abusive NBT

FAQ

Why is this plugin needed?

Normally, these NBT tags are not obtainable in vanilla survival-mode Minecraft. With the use of creative-mode, players can use a few different methods to obtain these items such as:

• use a hacked client to edit the NBT
• load a toolbar from a single-player world/other server which has items with edited NBT

This plugin is most useful on creative-mode servers, where players are given creative-mode access. It could also be beneficial for use on survival-mode servers if you just wish to keep your server in-check. Be aware that this plugin does remove NBT from items if it deems they are "illegitimate" (it does not remove the item itself).

Why have you not used ProtocolLib?

It was a personal decision. I wanted to be as close to Minecraft as possible. It also means users don't have to install an additional plugin.

I am using your plugin and have a player that crashes when they login to the server.

Make a GitHub issue on the project's homepage. It would be very helpful if you included a player.dat file from your world/playerdata/player-uuid.dat so that I can take a look at their inventory contents.

Compiling

In order for you to compile Panilla, you will need to use BuildTools, by SpigotMC, and build each version of CraftBukkit which is supported by Panilla. When you run BuildTools, it will add the dependencies required (CraftBukkit/Bukkit) to your local Maven repository. From there, you can compile the project with mvn package. The output plugin jar file will be plugin/target/Panilla.jar.