msq-rs

Rust library implementation of the legacy Master Server Query Protocol.

• Documentation
• crates.io
• Repository
• Release Notes

Usage

Add this to your Cargo.toml:

[dependencies]
msq = "0.2"

If you want to get straight from the latest master branch:

[dependencies]
msq = { git = "https://github.com/nullsystem/msq-rs.git" }

To get started using msq, see the Quick Start section below and take a look at the documentation (stable).

Features

By default, both async MSQClient and non-async/blocking MSQClientBlock are included. However, if you want to only include one or the other, you could do the following:

For non-async/MSQClientBlock only:

[dependencies]
msq = { version = "0.2", default-features = false, features = ["non-async"] }

For async/MSQClient only:

[dependencies]
msq = { version = "0.2", default-features = false, features = ["async"] }

Quick Start

use msq::{MSQClient, Region, Filter};
use std::io::Result;

#[tokio::main]
async fn main() -> Result<()> {
    // Startup the client
    let mut client = MSQClient::new().await?;

    // Connect to the master server
    client.connect("hl2master.steampowered.com:27011").await?;

    // Maximum amount of servers we wanted to query
    client.max_servers_on_query(256);

    let servers = client
        .query(Region::Europe,  // Restrict query to Europe region
            Filter::new()       // Create a Filter builder
                .appid(240)     // appid of 240 (CS:S)
                .nand()         // Start of NAND special filter
                    .map("de_dust2")     // Map is de_dust2
                    .empty(true)         // Server is empty
                .end()          // End of NAND special filter
                .gametype(&vec!["friendlyfire", "alltalk"])).await?;

    // nand filter excludes servers that has de_dust2 as
    // its map and is empty

    // nand and nor are both special filters, both closed by
    // using the end method

    Ok(())
}

Blocking/Non-Async version

If you don't want to use async, then a blocking version is available. The methods functionalities and names should matches its async counterpart.

use msq::{MSQClientBlock, Region, Filter};
use std::io::Result;

fn main() -> Result<()> {
    let mut client = MSQClientBlock::new()?;
    client.connect("hl2master.steampowered.com:27011")?;
    client.max_servers_on_query(256);

    let servers = client
        .query(Region::Europe,  // Restrict query to Europe region
            Filter::new()       // Create a Filter builder
                .appid(240)     // appid of 240 (CS:S)
                .nand()         // Start of NAND special filter
                    .map("de_dust2")     // Map is de_dust2
                    .empty(true)         // Server is empty
                .end()          // End of NAND special filter
                .gametype(&vec!["friendlyfire", "alltalk"]))?;
    Ok(())
}

API Changes

From v0.1.X to v0.2.X

• REMOVED: msq::region and msq::filter modules are no longer exposed. Just use msq::Region enum and msq::Filter struct directly.
• REPLACED: as_string replaces as_str in msq::Filter
• NEW: single_query method in msq::MSQClient and msq::MSQClientBlock to do a single query in one function
• NEW: msq::MSQClientBlock for a non-async version
• NEW: Can now define features async and non-async. Both are enabled by default.

License

msq-rs is released under the ISC License

Dependencies

• tokio
• byteorder

Misc

The following library goes well with this one:

• Source A2S Queries: a2s-rs