gout 0.3.3

Gout CLI — expose local services to the public internet with one command.
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mod cli;
mod config;
mod daemon;
mod tunnel;

use anyhow::Result;

fn main() -> Result<()> {
    tracing_subscriber::fmt().init();
    cli::Cli::run()
}

/// 处理 `login` 命令
fn cmd_login(server: &str, key: &str) -> Result<()> {
    config::write(server, key)?;
    println!("[+] saved to ~/.gout/config.toml (server: {server})");
    Ok(())
}

/// 处理 `list` 命令
fn cmd_list() -> Result<()> {
    let mgr = daemon::DaemonManager::new();
    let entries = mgr.list();
    if entries.is_empty() {
        println!("[*] no active tunnels");
        return Ok(());
    }
    println!("{:>5}  {:<26}  {:>4}  {:>6}  {:>8}", "PORT", "REMOTE", "TYPE", "PID", "STATUS");
    for e in &entries {
        let remote: &str = if e.remote.is_empty() { "-" } else { &e.remote };
        println!("{:>5}  {:<26}  {:>4}  {:>6}  {:>8}", e.port, remote, e.tunnel_type, e.pid, "alive");
    }
    Ok(())
}

/// 处理 `tcp/udp/http` 命令
fn cmd_tunnel(tunnel_type: &str, local_port: u16) -> Result<()> {
    let cfg = config::read()?;
    let tt = gout_api::TunnelType::parse(tunnel_type);

    let rt = tokio::runtime::Runtime::new()?;
    rt.block_on(async {
        tunnel::TunnelSession::create(cfg, tt, local_port).await?;
        Ok(())
    })
}

/// 处理 `tcp/udp/http -d` 命令
fn cmd_start_daemon(tunnel_type: &str, port: u16) -> Result<()> {
    let cfg = config::read()?;
    let tt = gout_api::TunnelType::parse(tunnel_type);
    let server_host = cfg.server.addr.split(':').next().unwrap_or(&cfg.server.addr);

    // 父进程先通过 REST API 创建隧道，拿到 public_port 再交给子进程
    let rt = tokio::runtime::Runtime::new()?;
    let (token, data_port, public_port) = rt.block_on(async {
        let gout = gout_api::client::GoutClient::new(&cfg.server.addr, &cfg.server.api_key);
        let tun = gout.create_tunnel(tt, port).await?;
        anyhow::Ok((tun.token, tun.data_port, tun.public_port))
    })?;

    // 显示隧道映射
    let local_url = if tt == gout_api::TunnelType::Http {
        format!("http://127.0.0.1:{port}")
    } else {
        format!("127.0.0.1:{port}")
    };
    let remote_url = if tt == gout_api::TunnelType::Http {
        format!("http://{server_host}:{public_port}")
    } else {
        format!("{server_host}:{public_port}")
    };
    println!("[+] {} tunnel: {} -> {}", tunnel_type, local_url, remote_url);

    // 启动子进程（传入已创建的 token）
    let mgr = daemon::DaemonManager::new();
    let pid = mgr.start_with_tunnel(tunnel_type, port, token, data_port, public_port, server_host)?;
    println!("[+] tunnel started in background (PID: {pid})");
    println!("    `gout list` to check status");
    println!("    `gout log {port}` to view logs");
    println!("    `gout kill {port}` to stop");
    Ok(())
}

/// 处理 `log` 命令
fn cmd_log(port: u16, follow: bool) -> Result<()> {
    let mgr = daemon::DaemonManager::new();
    if follow {
        mgr.follow_log(port)
    } else {
        let content = mgr.read_log(port)?;
        print!("{content}");
        Ok(())
    }
}

/// 处理 `kill` 命令
fn cmd_kill(port: u16) -> Result<()> {
    daemon::DaemonManager::new().kill(port)
}