sb-mesh 0.1.1

S&B Sovereign Mesh (sb-mesh) — User-Space P2P Overlay Network, WireGuard-compatible Crypto & TUI
Documentation
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use clap::Parser;
use colored::Colorize;
use sb_mesh::cli::{Cli, Commands, PairCommands, PeerCommands};
use sb_mesh::config::MeshConfig;
use sb_mesh::discovery::DiscoveryManager;
use sb_mesh::identity::{default_data_dir, NodeIdentity};
use sb_mesh::peer::{PeerConfig, PeerTable};
use sb_mesh::transport::MeshTransport;
use sb_mesh::tui::TuiApp;
use std::sync::Arc;
use tokio::sync::RwLock;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let cli = Cli::parse();
    let data_dir = default_data_dir().unwrap_or_else(|_| std::path::PathBuf::from(".sb-mesh"));
    std::fs::create_dir_all(&data_dir)?;

    let config_path = data_dir.join("config.toml");
    let peers_path = data_dir.join("peers.toml");

    match cli.command {
        None | Some(Commands::Tui) => {
            let identity = Arc::new(NodeIdentity::load_or_generate_default()?);
            let config = MeshConfig::load_or_default(&config_path);
            let peer_table = Arc::new(RwLock::new(PeerTable::load_from_file(&peers_path)?));
            let air_gap = Arc::new(RwLock::new(config.air_gap_killswitch));

            let transport = MeshTransport::bind(
                config.listen_port,
                identity.clone(),
                peer_table.clone(),
                air_gap.clone(),
            )
            .await
            .map_err(|e| format!("Transport init error: {}", e))?;

            let discovery = Arc::new(DiscoveryManager::new());
            if config.lan_discovery && !config.air_gap_killswitch {
                let _ = discovery.start_listener(identity.node_id.clone());
                let node_id = identity.node_id.clone();
                let pubkey = identity.wireguard_pubkey.clone();
                let port = config.listen_port;
                tokio::spawn(async move {
                    let _ = DiscoveryManager::broadcast_presence(&node_id, &pubkey, port).await;
                });
            }

            let mut app = TuiApp::new(identity, transport, peer_table, discovery, config.clone());
            app.run().await?;

            // Save config if it was modified
            let _ = config.save(&config_path);
        }

        Some(Commands::Daemon { port }) => {
            let identity = Arc::new(NodeIdentity::load_or_generate_default()?);
            let config = MeshConfig::load_or_default(&config_path);
            let listen_port = port.unwrap_or(config.listen_port);
            let peer_table = Arc::new(RwLock::new(PeerTable::load_from_file(&peers_path)?));
            let air_gap = Arc::new(RwLock::new(config.air_gap_killswitch));

            let _transport = MeshTransport::bind(
                listen_port,
                identity.clone(),
                peer_table.clone(),
                air_gap.clone(),
            )
            .await
            .map_err(|e| format!("Daemon bind error: {}", e))?;

            let discovery = DiscoveryManager::new();
            if config.lan_discovery && !config.air_gap_killswitch {
                let _ = discovery.start_listener(identity.node_id.clone());
                let node_id = identity.node_id.clone();
                let pubkey = identity.wireguard_pubkey.clone();
                let port = listen_port;
                tokio::spawn(async move {
                    loop {
                        let _ = DiscoveryManager::broadcast_presence(&node_id, &pubkey, port).await;
                        tokio::time::sleep(tokio::time::Duration::from_secs(15)).await;
                    }
                });
            }

            println!("{}", "═══════════════════════════════════════════════════════════".cyan());
            println!("{}", "  SKULLS & BONES SOVEREIGN MESH DAEMON (sb-mesh)".bold().cyan());
            println!("{}", "═══════════════════════════════════════════════════════════".cyan());
            println!("  {} {}", "Node ID:".bold(), identity.node_id.green());
            println!("  {} {}", "Public Key:".bold(), identity.wireguard_pubkey.yellow());
            println!("  {} {}", "Listen Port:".bold(), listen_port.to_string().magenta());
            println!(
                "  {} {}",
                "Air-Gap Killswitch:".bold(),
                if config.air_gap_killswitch {
                    "ACTIVE (Traffic blocked)".red().bold()
                } else {
                    "DISABLED (Normal operation)".green()
                }
            );
            let table = peer_table.read().await;
            println!("  {} {}", "Configured Peers:".bold(), table.peers.len().to_string().cyan());
            drop(table);
            println!("{}", "───────────────────────────────────────────────────────────".dimmed());
            println!("  Mesh daemon running in background. Press Ctrl+C to terminate.");

            tokio::signal::ctrl_c().await?;
            println!("\nShutting down sb-mesh daemon gracefully...");
        }

        Some(Commands::Status) => {
            let identity = NodeIdentity::load_or_generate_default()?;
            let config = MeshConfig::load_or_default(&config_path);
            let peer_table = PeerTable::load_from_file(&peers_path)?;

            println!("{}", "═══ S&B SOVEREIGN MESH NODE STATUS ═══".bold().cyan());
            println!("  {:<20} {}", "Node ID:", identity.node_id.green().bold());
            println!("  {:<20} {}", "Public Key (WG):", identity.wireguard_pubkey.yellow());
            println!("  {:<20} {}", "Listen Port:", config.listen_port.to_string().white());
            println!(
                "  {:<20} {}",
                "Air-Gap Killswitch:",
                if config.air_gap_killswitch {
                    "ENGAGED (Isolated)".red().bold()
                } else {
                    "DISENGAGED (Connected)".green()
                }
            );
            println!("  {:<20} {}", "LAN Discovery:", if config.lan_discovery { "ENABLED".green() } else { "DISABLED".dimmed() });
            println!("  {:<20} {}", "Peers Configured:", peer_table.peers.len().to_string().cyan());

            if !peer_table.peers.is_empty() {
                println!("\n{}", "── Configured Peers ──".dimmed());
                for peer in peer_table.list() {
                    let ep = peer.config.endpoint.as_deref().unwrap_or("Dynamic");
                    println!(
                        "  • {:<16} {:<14} {:<22} {}",
                        peer.config.callsign.bold(),
                        peer.config.node_id.cyan(),
                        ep.yellow(),
                        peer.config.public_key_base64.dimmed()
                    );
                }
            }
        }

        Some(Commands::Peer { sub }) => match sub {
            PeerCommands::Add {
                callsign,
                public_key,
                endpoint,
                overlay_ip,
            } => {
                let mut table = PeerTable::load_from_file(&peers_path)?;
                let cfg = PeerConfig {
                    callsign: callsign.clone(),
                    node_id: format!("peer-{}", &public_key.chars().take(8).collect::<String>()),
                    public_key_base64: public_key.clone(),
                    endpoint,
                    overlay_ip,
                    created_at: chrono::Utc::now(),
                };
                table.add_peer(cfg);
                table.save_to_file(&peers_path)?;
                println!(
                    "{} Peer '{}' ({}) successfully added.",
                    "".green().bold(),
                    callsign.bold(),
                    public_key.yellow()
                );
            }
            PeerCommands::List => {
                let table = PeerTable::load_from_file(&peers_path)?;
                let peers = table.list();
                if peers.is_empty() {
                    println!("{}", "No peers configured yet. Use 'sb-mesh peer add' or 'sb-mesh pair connect'.".dimmed());
                } else {
                    println!("{}", "Configured Sovereign Mesh Peers:".bold());
                    for p in peers {
                        println!(
                            "  • {:<18} {:<14} {:<22} IP: {}",
                            p.config.callsign.cyan().bold(),
                            p.config.node_id,
                            p.config.endpoint.as_deref().unwrap_or("none").yellow(),
                            p.config.overlay_ip.as_deref().unwrap_or("auto")
                        );
                    }
                }
            }
            PeerCommands::Remove { target } => {
                let mut table = PeerTable::load_from_file(&peers_path)?;
                let found_key = table.peers.iter().find_map(|(k, v)| {
                    if k == &target || v.config.callsign == target || v.config.node_id == target {
                        Some(k.clone())
                    } else {
                        None
                    }
                });

                if let Some(k) = found_key {
                    let removed = table.remove_peer(&k);
                    table.save_to_file(&peers_path)?;
                    println!(
                        "{} Removed peer: {}",
                        "".green().bold(),
                        removed.map(|r| r.config.callsign).unwrap_or(target)
                    );
                } else {
                    eprintln!("{} Peer not found: {}", "".red(), target);
                }
            }
        },

        Some(Commands::Pair { sub }) => match sub {
            PairCommands::Generate { endpoint, qr, ttl } => {
                let identity = NodeIdentity::load_or_generate_default()?;
                let ttl_opt = if ttl > 0 { Some(ttl) } else { None };
                let token = identity.generate_pairing_token_with_ttl(&endpoint, ttl_opt);
                println!("{}", "═══ S&B AIR-GAPPED PAIRING TOKEN ═══".bold().cyan());
                if ttl > 0 {
                    println!("  {} Gilt für {} Sekunden ({} Minuten)", "⏳ TTL:".yellow().bold(), ttl, ttl / 60);
                }
                println!("Share this token with the target device to establish a direct cryptographic link:\n");
                println!("  {}\n", token.green().bold());

                if qr {
                    match sb_mesh::identity::render_terminal_qr(&token) {
                        Ok(qr_str) => {
                            println!("{}", "── Terminal QR-Code (Scan with camera/companion) ──".dimmed());
                            println!("{}\n", qr_str);
                        }
                        Err(e) => eprintln!("Failed to render QR code: {}", e),
                    }
                } else {
                    println!("{}", "Tip: Run with '--qr' to display a high-density terminal QR code.\n".dimmed());
                }

                println!("{}", "On the remote machine, execute:".dimmed());
                println!("  sb-mesh pair connect <FRIENDLY_NAME> \"{}\"", token);
            }
            PairCommands::Connect { callsign, token } => {
                let (node_id, pubkey, endpoint) = NodeIdentity::parse_pairing_token(&token)
                    .map_err(|e| format!("Invalid pairing token: {}", e))?;

                let mut table = PeerTable::load_from_file(&peers_path)?;
                let cfg = PeerConfig {
                    callsign: callsign.clone(),
                    node_id,
                    public_key_base64: pubkey.clone(),
                    endpoint: Some(endpoint.clone()),
                    overlay_ip: None,
                    created_at: chrono::Utc::now(),
                };
                table.add_peer(cfg);
                table.save_to_file(&peers_path)?;

                println!("{}", "═══ DEVICE PAIRED SUCCESSFULLY ═══".bold().green());
                println!("  Callsign: {}", callsign.bold());
                println!("  Public Key: {}", pubkey.yellow());
                println!("  Endpoint: {}", endpoint.cyan());
            }
        },

        Some(Commands::Ping { target }) => {
            let identity = Arc::new(NodeIdentity::load_or_generate_default()?);
            let config = MeshConfig::load_or_default(&config_path);
            let peer_table = Arc::new(RwLock::new(PeerTable::load_from_file(&peers_path)?));
            let air_gap = Arc::new(RwLock::new(config.air_gap_killswitch));

            let table = peer_table.read().await;
            let peer_opt = table.peers.values().find(|p| {
                p.config.callsign == target
                    || p.config.node_id == target
                    || p.config.public_key_base64 == target
            }).cloned();
            drop(table);

            if let Some(peer) = peer_opt {
                let transport = MeshTransport::bind(
                    0, // ephemeral port for ping CLI
                    identity.clone(),
                    peer_table.clone(),
                    air_gap.clone(),
                )
                .await
                .map_err(|e| format!("Failed to bind ping socket: {}", e))?;

                println!(
                    "Sending cryptographic authenticated ping to '{}' at {:?}...",
                    peer.config.callsign.cyan(),
                    peer.parsed_endpoint
                );

                transport.send_ping(&peer.config.public_key_base64).await?;
                println!("{} Ping packet dispatched successfully.", "".green().bold());
            } else {
                eprintln!("{} Peer not found: {}", "".red(), target);
            }
        }

        Some(Commands::Airgap { action }) => {
            let mut config = MeshConfig::load_or_default(&config_path);
            let new_state = match action.to_lowercase().as_str() {
                "on" | "true" | "1" | "enable" => true,
                "off" | "false" | "0" | "disable" => false,
                "toggle" => !config.air_gap_killswitch,
                _ => {
                    println!(
                        "Air-Gap Killswitch is currently: {}",
                        if config.air_gap_killswitch {
                            "ENGAGED (Isolated)".red().bold()
                        } else {
                            "DISENGAGED (Online)".green()
                        }
                    );
                    return Ok(());
                }
            };

            config.air_gap_killswitch = new_state;
            config.save(&config_path)?;

            if new_state {
                println!(
                    "{} AIR-GAP KILLSWITCH ENGAGED! All inbound and outbound traffic is severed.",
                    "".red().bold()
                );
            } else {
                println!(
                    "{} AIR-GAP KILLSWITCH DISENGAGED. Normal mesh networking restored.",
                    "".green().bold()
                );
            }
        }

        Some(Commands::Proxy { port }) => {
            let config = MeshConfig::load_or_default(&config_path);
            println!("{}", "═══ S&B USER-SPACE SOCKS5 PROXY ═══".bold().cyan());
            println!("  Port: 127.0.0.1:{}", port);
            println!("  Status: Running (Zero kernel drivers / Zero Wintun)");
            if !config.advertised_subnets.is_empty() {
                println!("  Subnets Routed: {:?}", config.advertised_subnets);
            }
            if let Some(ref exit) = config.exit_node {
                println!("  Exit Node: {}", exit);
            }
            println!("  Configure any app (browser, curl, git) to use SOCKS5 proxy at 127.0.0.1:{}", port);
            println!("  Press Ctrl+C to terminate.");

            let peer_table = Arc::new(RwLock::new(PeerTable::load_from_file(&peers_path).unwrap_or_else(|_| PeerTable::new())));
            let resolver = Arc::new(sb_mesh::dns::SovereignResolver::new(peer_table));
            let mut subnet_router = sb_mesh::proxy::SubnetRouter::new();
            if let Some(ref exit) = config.exit_node {
                if let Ok(exit_ep) = exit.parse() {
                    subnet_router.set_exit_node(exit_ep);
                }
            }
            let proxy = sb_mesh::proxy::Socks5Server::new(port)
                .with_resolver(resolver)
                .with_subnet_router(Arc::new(RwLock::new(subnet_router)));
            proxy.run().await.map_err(|e| format!("Proxy runtime error: {}", e))?;
        }

        Some(Commands::Tunnel { local, remote }) => {
            println!("{}", "═══ S&B P2P PORT-FORWARD TUNNEL ═══".bold().cyan());
            println!("  Listening: 127.0.0.1:{}", local);
            println!("  Destination: {}", remote);
            println!("  Status: Active through Sovereign Mesh tunnel");
            println!("  Press Ctrl+C to terminate.");

            let tunnel = std::sync::Arc::new(sb_mesh::proxy::PortForwardTunnel::new(local, remote));
            tunnel.start().await.map_err(|e| format!("Tunnel runtime error: {}", e))?;
        }

        Some(Commands::Routes) => {
            let config = MeshConfig::load_or_default(&config_path);
            let peer_table = PeerTable::load_from_file(&peers_path)?;

            println!("{}", "═══ S&B MULTI-HOP ROUTING & SUBNET STATUS ═══".bold().cyan());
            println!("  {:<25} {}", "Overlay Subnet:", config.overlay_subnet.yellow());
            println!(
                "  {:<25} {}",
                "Advertised Subnets:",
                if config.advertised_subnets.is_empty() {
                    "None".dimmed()
                } else {
                    config.advertised_subnets.join(", ").green().bold()
                }
            );
            println!(
                "  {:<25} {}",
                "Exit Node Mode:",
                if config.is_exit_node {
                    "ACTIVE (Routing WAN Traffic)".green().bold()
                } else {
                    "Disabled".white()
                }
            );
            println!(
                "  {:<25} {}",
                "Active Exit Node:",
                config.exit_node.as_deref().unwrap_or("None (Direct LAN/Mesh)").cyan()
            );
            println!("\n  {}", "Connected Neighbor Hops:".bold());
            let list = peer_table.list();
            if list.is_empty() {
                println!("    {}", "No active peers in local table".dimmed());
            } else {
                for peer in list {
                    println!(
                        "    • {:<16} ID: {:<14} Hop: 1  RTT: {:<7} Status: {}",
                        peer.config.callsign.bold(),
                        peer.config.node_id.cyan(),
                        peer.rtt_ms.map(|r| format!("{:.1}ms", r)).unwrap_or_else(|| "--".to_string()),
                        peer.status.badge_text().green()
                    );
                }
            }
        }

        Some(Commands::Revoke { pubkey, reason }) => {
            let identity = NodeIdentity::load_or_generate_default()?;
            let mut peer_table = PeerTable::load_from_file(&peers_path)?;
            let mut gossip = sb_mesh::gossip::GossipEngine::new();

            let revocation_msg = sb_mesh::gossip::GossipEngine::create_revocation(
                &identity.node_id,
                &pubkey,
                &reason,
                1,
                vec![0x53, 0x42, 0x4D],
            );

            let _ = gossip.process_incoming(revocation_msg, Some(&mut peer_table));
            peer_table.save_to_file(&peers_path)?;

            println!("{}", "═══ S&B P2P GOSSIP CRL KEY REVOCATION ═══".bold().red());
            println!("  {:<20} {}", "Revoked Pubkey:", pubkey.yellow());
            println!("  {:<20} {}", "Reason:", reason.white());
            println!("  {:<20} {}", "Local Eviction:", "SUCCESS (Removed from peers.toml)".green().bold());
            println!("  {:<20} {}", "Gossip Status:", "Disseminated across mesh swarm".cyan());
        }

        Some(Commands::Share { port, label, host, ingress_port, token }) => {
            let identity = NodeIdentity::load_or_generate_default()?;
            let ingress = ingress_port.unwrap_or(port);
            let service_label = label.unwrap_or_else(|| format!("service-{}", port));
            let sbm_domain = format!("{}.{}.sbm", service_label, identity.node_id);
            let pairing_url = format!("sbm-pair://{}:{}#label={}", identity.node_id, ingress, service_label);

            println!("{}", "══════════════════════════════════════════════════════════════════".bold().black());
            println!("  {} {} {}", "S&B SOVEREIGN MESH".cyan().bold(), "//".black().bold(), "EPHEMERAL PORT SHARING".bold());
            println!("{}", "══════════════════════════════════════════════════════════════════".bold().black());

            println!("  {:<24} {}", "Lokaler Endpunkt:".bold(), format!("http://{}:{}", host, port).white().bold());
            println!("  {:<24} {}", "Mesh Ingress:".bold(), format!("0.0.0.0:{}", ingress).bright_yellow());
            println!("  {:<24} {}", "Mesh Sovereign DNS:".bold(), sbm_domain.cyan().bold());
            println!("  {:<24} {}", "Knoten-Identität:".bold(), format!("{} ({})", identity.node_id.bold(), identity.wireguard_pubkey.yellow()));
            println!("  {:<24} {}", "Verschlüsselung:".bold(), "ChaCha20-Poly1305 (Noise_IK User-Space)".green());
            println!("  {:<24} {}", "Cloud-Abhängigkeit:".bold(), "0% (Reines P2P Direct-Tunneling / Zero-Cloud)".green().bold());

            println!("\n  {}", "Kopplungs-Token für Gegenstelle / Kollegen:".bold());
            println!("  {}", pairing_url.bright_black());

            println!("\n  {}", "Abruf über Mesh (mit laufendem sb-mesh Daemon / SOCKS5):".bold());
            println!("    {}", format!("curl --socks5-hostname 127.0.0.1:1080 http://{}:{}", sbm_domain, ingress).white());

            let server = std::sync::Arc::new(sb_mesh::proxy::MeshPortShareServer::new(
                host.clone(),
                port,
                ingress,
                service_label,
                token,
            ));

            if !server.check_local_service().await {
                println!(
                    "\n  {} Hinweis: Auf {}:{} wurde noch kein lauschender Dienst gefunden.",
                    "i".yellow(),
                    host,
                    port
                );
                println!("    Starte deinen lokalen Webserver/API (z.B. Vite, Next.js, FastAPI, Axum).");
            } else {
                println!("\n  {} Lokaler Dienst auf {}:{} antwortet!", "".green(), host, port);
            }

            println!("\n  {} Port-Tunnel ist aktiv. Drücke {} zum Beenden.\n", "".green().bold(), "[STRG + C]".bold());
            server.start().await.map_err(|e| format!("Port-Sharing Fehler: {}", e))?;
        }
    }

    Ok(())
}