ResourceHack

Servers can use ResourceHack as a protection tool for their resource packs. It can skip the confirmation screen that normally appears when a server sends a pack, and it can auto-confirm the prompt so players join without clicking through it. Packs can also be encrypted, and the mod can stop the client from reloading resources it does not need, for example when switching between servers behind a proxy.

On the server side, the mod runs as a plugin. Its AES-256 key is set in plugins/ResourceHack/config.yml, after which a server restart or a plugin reload applies the change. Encryption is run with the res-encrypt command and needs the reshack.encrypt permission. Loading of resource packs can also be configured for setups that use ItemsAdder, Nova, or JResourcePack, as well as the relevant server.properties entries.

The mod is published for Fabric, Forge and NeoForge, and for the Paper and Purpur server platforms. Files cover 1.20 – 1.21.1 across eight release versions, with 1.1.0 for 1.21.1 as the latest Fabric and NeoForge build and 1.0.0 for 1.20.1 as the latest Forge file. Only the client needs the client-side part, and the license is a custom one; the source code and issue tracker are publicly linked, but the project is not open source.