Minecraft proxy

Last update: Oct 7, 2022

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Overview

mc-proxy

This is a fully functional proxy for online and offline-mode Minecraft servers. It is based on an optimized, custom-made packet parser for Minecraft 1.8+ (tested up to 1.16), and minimizes memory usage by parsing the packets in a streaming fashion rather than loading them into memory all at once.

The codebase contains both a client and a server. Packets received by the server are forwarded to the client, and vice versa, but packets can be intercepted and/or rewritten dynamically. The server does not support compression or online-mode and there are no plans to add this, since it would only reduce performance, though implementing it is possible if desired. Although the client does not currently supports only Mojang authentication (accounts migrated to Microsoft will not work), adding support for Microsoft is planned.

The default implementation in lib.rs adds a stat checker for Hypixel. The binary must currently be called with your Minecraft username, password, and Hypixel API key as environment variables (very secure, I know). There's a WIP GUI wrapper written with Tauri in src-tauri.

The main purpose of this particular project is proxying and adding custom command support, but it is generic enough to support a wide variety of network-level plugins, which work on any Minecraft client. Since this codebase implements packet parsing and authentication from scratch, feel free to fork it and do whatever you want with the core architecture.

TODOs

Improve performance - buffering the TCP streams could be useful
Make more extensible - add an on-the-fly command creation system
Add a GUI for server selection
Fix bugs (there are a lot)
Fix warnings (there are even more)

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Comments

No longer builds?

After this https://github.com/101arrowz/mc-proxy/commit/3e855d58061768acbfa1c743790aa481710f8563

error[E0658]: use of unstable library feature 'iter_intersperse': recently added
   --> src/main.rs:195:105
    |
195 | ...                   extra: Some(display.into_iter().intersperse(Chat::Raw(", ".into())).collect()),
    |                                                       ^^^^^^^^^^^
    |
    = note: see issue #79524 <https://github.com/rust-lang/rust/issues/79524> for more information
    = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable

For more information about this error, try `rustc --explain E0658`.

No longer builds, but as compiler suggest add #![feature(iter_intersperse)] this

opened by iamtakingithard 4

Why does not proxy work with the Microsoft account?

We noticed that this proxy doesn't work in login with Microsoft, and if it's possible, we want to know what is the technical blocker to do this in terms of network that is to say, which is the weakness of this proxy in technical terms (maybe http x protocol?) to not allow the authentication with Microsoft.

Thanks for your response.

Good job!

opened by jesus-mg-ios 2