Function server_fetch_hosts

src-tauri/src/services.rs:158–177

Server-side: resolve DNS for GitHub domains, save to files

()

/// Server-side: resolve DNS for GitHub domains, save to files
pub async fn server_fetch_hosts() -> Result<(), String> {
    let domains = dns::get_github_domains();
    let hosts = dns::fetch_hosts(&domains);
    let now = chrono::Local::now().format("%Y-%m-%d %H:%M:%S").to_string();

    let hosts_json = serde_json::to_string(&hosts).map_err(|e| e.to_string())?;
    let hosts_text = dns::format_hosts_text(&hosts, &now);

    let exe_dir = std::env::current_exe()
        .ok()
        .and_then(|p| p.parent().map(|p| p.to_path_buf()))
        .unwrap_or_else(|| std::path::PathBuf::from("."));

    std::fs::write(exe_dir.join("hosts.json"), &hosts_json)
        .map_err(|e| format!("写入hosts.json失败: {}", e))?;
    std::fs::write(exe_dir.join("hosts.txt"), &hosts_text)
        .map_err(|e| format!("写入hosts.txt失败: {}", e))?;

    Ok(())
}

/// Simple HTTP server for serving hosts files (async with graceful shutdown)
#[cfg(feature = "gui")]