1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115

//! SC2-Proxy: A StarCraft II bot API management layer

// Lints
#![deny(missing_docs)]
#![forbid(unused_must_use)]
// Features
#![feature(type_alias_enum_variants)]

use crossbeam::channel::{self, TryRecvError};
use log::{error, info, warn};
use std::env::var;
use std::fs::File;
use std::io::prelude::*;
use std::thread;

mod game;
mod paths;
mod portconfig;
mod proxy;
mod sc2process;

pub mod config;
pub mod maps;
pub mod remote_control;
pub mod sc2;
pub mod supervisor;

use self::config::Config;
use self::supervisor::{RemoteUpdateStatus, Supervisor};

/// Default config file path
pub fn default_config_path() -> String {
    let env_cfg = var("SC2_PROXY_CONFIG").unwrap_or(String::new());
    if env_cfg != "" {
        env_cfg
    } else {
        "sc2_proxy.toml".to_owned()
    }
}

/// Load configuration from a path
/// Returns none if the file doesn't exist
/// Panics if file cannot be read or format is invalid
pub fn load_config(path: String) -> Option<Config> {
    info!("Reading config file from {:?}", path);
    match File::open(path) {
        Ok(ref mut f) => {
            let mut contents = String::new();
            f.read_to_string(&mut contents)
                .expect("Unable to read config file");
            Some(toml::from_str::<Config>(&contents).expect("Deserialization failed"))
        },
        Err(_) => None,
    }
}

/// Run a proxy server, loading the config any available
pub fn run_server(config_path: Option<String>) {
    let path = config_path.unwrap_or_else(|| default_config_path());
    let config = load_config(path).unwrap_or_else(|| {
        warn!("Config file not found, using default config");
        Config::new()
    });
    run_server_config(config)
}

/// Run a proxy server using `config`
pub fn run_server_config(config: Config) {
    let (proxy_sender, proxy_receiver) = channel::unbounded();

    let mut remote = if config.remote_controller.enabled {
        Some(remote_control::run_server(&config.remote_controller.addr()))
    } else if config.matchmaking.mode == self::config::MatchmakingMode::RemoteController {
        error!("Remote controller disabled in config, but required for matchmaking");
        return;
    } else {
        None
    };

    let addr = config.proxy.addr();
    thread::spawn(move || {
        proxy::run(&addr, proxy_sender);
    });

    let mut sv = Supervisor::new(config);

    loop {
        match proxy_receiver.try_recv() {
            Ok(client) => {
                sv.add_client(client);
            },
            Err(TryRecvError::Empty) => {},
            Err(TryRecvError::Disconnected) => break,
        }

        sv.update_playlist();

        sv.update_games();

        if let Some(ref mut r) = remote {
            if sv.update_remote(r) == RemoteUpdateStatus::Quit {
                sv.close();
                break;
            }
        }

        thread::sleep(::std::time::Duration::from_millis(100));
    }

    info!("Quitting");

    if let Some(r) = remote {
        r.handle.join().unwrap();
    }
}