+use crate::disk;
+use crate::hex_utils;
+use crate::{
+ ChannelManager, FilesystemLogger, HTLCStatus, MillisatAmount, PaymentInfo, PaymentInfoStorage,
+ PeerManager,
+};
+use bitcoin::network::constants::Network;
use bitcoin::secp256k1::key::PublicKey;
-use crate::{FilesystemLogger, PeerManager, ChannelManager};
-use crate::utils;
+use lightning::chain;
+use lightning::chain::keysinterface::KeysManager;
+use lightning::ln::features::InvoiceFeatures;
+use lightning::ln::{PaymentHash, PaymentSecret};
+use lightning::routing::network_graph::NetGraphMsgHandler;
+use lightning::routing::router;
+use lightning::routing::router::RouteHintHop;
+use lightning::util::config::UserConfig;
+use lightning_invoice::{utils, Currency, Invoice};
+use std::env;
use std::io;
use std::io::{BufRead, Write};
-use std::net::{SocketAddr, TcpStream};
+use std::net::{SocketAddr, ToSocketAddrs};
+use std::ops::Deref;
+use std::path::Path;
+use std::str::FromStr;
use std::sync::Arc;
-use std::thread;
use std::time::Duration;
-// use tokio::runtime::Runtime;
-use tokio::runtime::{Builder, Runtime};
use tokio::sync::mpsc;
-pub fn poll_for_user_input(peer_manager: Arc<PeerManager>, channel_manager: Arc<ChannelManager>, event_notifier: mpsc::Sender<()>) {
- println!("LDK startup successful. To view available commands: \"help\".\nLDK logs are available in the `logs` folder of the current directory.");
- print!("> "); io::stdout().flush().unwrap(); // Without flushing, the `>` doesn't print
- let stdin = io::stdin();
- for line in stdin.lock().lines() {
- let line = line.unwrap();
- let mut words = line.split_whitespace();
- if let Some(word) = words.next() {
- match word {
- "help" => handle_help(),
- "openchannel" => {
- let peer_pubkey_and_ip_addr = words.next();
- let channel_value_sat = words.next();
- if peer_pubkey_and_ip_addr.is_none() || channel_value_sat.is_none() {
- println!("ERROR: openchannel takes 2 arguments: `openchannel pubkey@host:port channel_amt_satoshis`")
- } else {
- let peer_pubkey_and_ip_addr = peer_pubkey_and_ip_addr.unwrap();
- let channel_value_sat = channel_value_sat.unwrap();
- let mut pubkey_and_addr = peer_pubkey_and_ip_addr.split("@");
- let pubkey = pubkey_and_addr.next();
- let peer_addr_str = pubkey_and_addr.next();
- if peer_addr_str.is_none() || peer_addr_str.is_none() {
- println!("ERROR: incorrectly formatted peer info. Should be formatted as: `pubkey@host:port`");
- } else {
- let pubkey = pubkey.unwrap();
- let peer_addr_str = peer_addr_str.unwrap();
- let peer_addr_res: Result<SocketAddr, _> = peer_addr_str.parse();
- let chan_amt: Result<u64, _> = channel_value_sat.parse();
- if let Some(pk) = utils::hex_to_compressed_pubkey(pubkey) {
- if let Ok(addr) = peer_addr_res {
- if let Ok(amt) = chan_amt {
- handle_open_channel(pk, addr, amt,
- peer_manager.clone(),
- channel_manager.clone(),
- event_notifier.clone());
- } else {
- println!("ERROR: channel amount must be a number");
- }
- } else {
- println!("ERROR: couldn't parse
- pubkey@host:port into a socket address");
- }
- } else {
- println!("ERROR: unable to parse given pubkey for node");
- }
- }
- }
- },
- _ => println!("hello")
- }
- }
- print!("> "); io::stdout().flush().unwrap();
-
- }
+pub(crate) struct LdkUserInfo {
+ pub(crate) bitcoind_rpc_username: String,
+ pub(crate) bitcoind_rpc_password: String,
+ pub(crate) bitcoind_rpc_port: u16,
+ pub(crate) bitcoind_rpc_host: String,
+ pub(crate) ldk_storage_dir_path: String,
+ pub(crate) ldk_peer_listening_port: u16,
+ pub(crate) network: Network,
}
-fn handle_help() {
- println!("")
+pub(crate) fn parse_startup_args() -> Result<LdkUserInfo, ()> {
+ if env::args().len() < 3 {
+ println!("ldk-tutorial-node requires 3 arguments: `cargo run <bitcoind-rpc-username>:<bitcoind-rpc-password>@<bitcoind-rpc-host>:<bitcoind-rpc-port> ldk_storage_directory_path [<ldk-incoming-peer-listening-port>] [bitcoin-network]`");
+ return Err(());
+ }
+ let bitcoind_rpc_info = env::args().skip(1).next().unwrap();
+ let bitcoind_rpc_info_parts: Vec<&str> = bitcoind_rpc_info.split("@").collect();
+ if bitcoind_rpc_info_parts.len() != 2 {
+ println!("ERROR: bad bitcoind RPC URL provided");
+ return Err(());
+ }
+ let rpc_user_and_password: Vec<&str> = bitcoind_rpc_info_parts[0].split(":").collect();
+ if rpc_user_and_password.len() != 2 {
+ println!("ERROR: bad bitcoind RPC username/password combo provided");
+ return Err(());
+ }
+ let bitcoind_rpc_username = rpc_user_and_password[0].to_string();
+ let bitcoind_rpc_password = rpc_user_and_password[1].to_string();
+ let bitcoind_rpc_path: Vec<&str> = bitcoind_rpc_info_parts[1].split(":").collect();
+ if bitcoind_rpc_path.len() != 2 {
+ println!("ERROR: bad bitcoind RPC path provided");
+ return Err(());
+ }
+ let bitcoind_rpc_host = bitcoind_rpc_path[0].to_string();
+ let bitcoind_rpc_port = bitcoind_rpc_path[1].parse::<u16>().unwrap();
+
+ let ldk_storage_dir_path = env::args().skip(2).next().unwrap();
+
+ let mut ldk_peer_port_set = true;
+ let ldk_peer_listening_port: u16 = match env::args().skip(3).next().map(|p| p.parse()) {
+ Some(Ok(p)) => p,
+ Some(Err(e)) => panic!("{}", e),
+ None => {
+ ldk_peer_port_set = false;
+ 9735
+ }
+ };
+
+ let arg_idx = match ldk_peer_port_set {
+ true => 4,
+ false => 3,
+ };
+ let network: Network = match env::args().skip(arg_idx).next().as_ref().map(String::as_str) {
+ Some("testnet") => Network::Testnet,
+ Some("regtest") => Network::Regtest,
+ Some(_) => panic!("Unsupported network provided. Options are: `regtest`, `testnet`"),
+ None => Network::Testnet,
+ };
+ Ok(LdkUserInfo {
+ bitcoind_rpc_username,
+ bitcoind_rpc_password,
+ bitcoind_rpc_host,
+ bitcoind_rpc_port,
+ ldk_storage_dir_path,
+ ldk_peer_listening_port,
+ network,
+ })
+}
+
+pub(crate) async fn poll_for_user_input(
+ peer_manager: Arc<PeerManager>, channel_manager: Arc<ChannelManager>,
+ keys_manager: Arc<KeysManager>,
+ router: Arc<NetGraphMsgHandler<Arc<dyn chain::Access + Send + Sync>, Arc<FilesystemLogger>>>,
+ inbound_payments: PaymentInfoStorage, outbound_payments: PaymentInfoStorage,
+ event_notifier: mpsc::Sender<()>, ldk_data_dir: String, logger: Arc<FilesystemLogger>,
+ network: Network,
+) {
+ println!("LDK startup successful. To view available commands: \"help\".");
+ println!("LDK logs are available at <your-supplied-ldk-data-dir-path>/.ldk/logs");
+ println!("Local Node ID is {}.", channel_manager.get_our_node_id());
+ let stdin = io::stdin();
+ print!("> ");
+ io::stdout().flush().unwrap(); // Without flushing, the `>` doesn't print
+ for line in stdin.lock().lines() {
+ let _ = event_notifier.try_send(());
+ let line = line.unwrap();
+ let mut words = line.split_whitespace();
+ if let Some(word) = words.next() {
+ match word {
+ "help" => help(),
+ "openchannel" => {
+ let peer_pubkey_and_ip_addr = words.next();
+ let channel_value_sat = words.next();
+ if peer_pubkey_and_ip_addr.is_none() || channel_value_sat.is_none() {
+ println!("ERROR: openchannel has 2 required arguments: `openchannel pubkey@host:port channel_amt_satoshis` [--public]");
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ }
+ let peer_pubkey_and_ip_addr = peer_pubkey_and_ip_addr.unwrap();
+ let (pubkey, peer_addr) =
+ match parse_peer_info(peer_pubkey_and_ip_addr.to_string()) {
+ Ok(info) => info,
+ Err(e) => {
+ println!("{:?}", e.into_inner().unwrap());
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ }
+ };
+
+ let chan_amt_sat: Result<u64, _> = channel_value_sat.unwrap().parse();
+ if chan_amt_sat.is_err() {
+ println!("ERROR: channel amount must be a number");
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ }
+
+ if connect_peer_if_necessary(
+ pubkey,
+ peer_addr,
+ peer_manager.clone(),
+ event_notifier.clone(),
+ )
+ .await
+ .is_err()
+ {
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ };
+
+ let announce_channel = match words.next() {
+ Some("--public") | Some("--public=true") => true,
+ Some("--public=false") => false,
+ Some(_) => {
+ println!("ERROR: invalid `--public` command format. Valid formats: `--public`, `--public=true` `--public=false`");
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ }
+ None => false,
+ };
+
+ if open_channel(
+ pubkey,
+ chan_amt_sat.unwrap(),
+ announce_channel,
+ channel_manager.clone(),
+ )
+ .is_ok()
+ {
+ let peer_data_path = format!("{}/channel_peer_data", ldk_data_dir.clone());
+ let _ = disk::persist_channel_peer(
+ Path::new(&peer_data_path),
+ peer_pubkey_and_ip_addr,
+ );
+ }
+ }
+ "sendpayment" => {
+ let invoice_str = words.next();
+ if invoice_str.is_none() {
+ println!("ERROR: sendpayment requires an invoice: `sendpayment <invoice>`");
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ }
+
+ let invoice = match Invoice::from_str(invoice_str.unwrap()) {
+ Ok(inv) => inv,
+ Err(e) => {
+ println!("ERROR: invalid invoice: {:?}", e);
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ }
+ };
+ let mut route_hints = invoice.routes().clone();
+ let mut last_hops = Vec::new();
+ for hint in route_hints.drain(..) {
+ last_hops.push(hint[hint.len() - 1].clone());
+ }
+
+ let amt_pico_btc = invoice.amount_pico_btc();
+ if amt_pico_btc.is_none() {
+ println!("ERROR: invalid invoice: must contain amount to pay");
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ }
+ let amt_msat = amt_pico_btc.unwrap() / 10;
+
+ let payee_pubkey = invoice.recover_payee_pub_key();
+ let final_cltv = invoice.min_final_cltv_expiry() as u32;
+
+ let mut payment_hash = PaymentHash([0; 32]);
+ payment_hash.0.copy_from_slice(&invoice.payment_hash().as_ref()[0..32]);
+
+ let payment_secret = match invoice.payment_secret() {
+ Some(secret) => {
+ let mut payment_secret = PaymentSecret([0; 32]);
+ payment_secret.0.copy_from_slice(&secret.0);
+ Some(payment_secret)
+ }
+ None => None,
+ };
+
+ let invoice_features = match invoice.features() {
+ Some(feat) => Some(feat.clone()),
+ None => None,
+ };
+
+ send_payment(
+ payee_pubkey,
+ amt_msat,
+ final_cltv,
+ payment_hash,
+ payment_secret,
+ invoice_features,
+ last_hops,
+ router.clone(),
+ channel_manager.clone(),
+ outbound_payments.clone(),
+ logger.clone(),
+ );
+ }
+ "getinvoice" => {
+ let amt_str = words.next();
+ if amt_str.is_none() {
+ println!("ERROR: getinvoice requires an amount in millisatoshis");
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ }
+
+ let amt_msat: Result<u64, _> = amt_str.unwrap().parse();
+ if amt_msat.is_err() {
+ println!("ERROR: getinvoice provided payment amount was not a number");
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ }
+ get_invoice(
+ amt_msat.unwrap(),
+ inbound_payments.clone(),
+ channel_manager.clone(),
+ keys_manager.clone(),
+ network,
+ );
+ }
+ "connectpeer" => {
+ let peer_pubkey_and_ip_addr = words.next();
+ if peer_pubkey_and_ip_addr.is_none() {
+ println!("ERROR: connectpeer requires peer connection info: `connectpeer pubkey@host:port`");
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ }
+ let (pubkey, peer_addr) =
+ match parse_peer_info(peer_pubkey_and_ip_addr.unwrap().to_string()) {
+ Ok(info) => info,
+ Err(e) => {
+ println!("{:?}", e.into_inner().unwrap());
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ }
+ };
+ if connect_peer_if_necessary(
+ pubkey,
+ peer_addr,
+ peer_manager.clone(),
+ event_notifier.clone(),
+ )
+ .await
+ .is_ok()
+ {
+ println!("SUCCESS: connected to peer {}", pubkey);
+ }
+ }
+ "listchannels" => list_channels(channel_manager.clone()),
+ "listpayments" => {
+ list_payments(inbound_payments.clone(), outbound_payments.clone())
+ }
+ "closechannel" => {
+ let channel_id_str = words.next();
+ if channel_id_str.is_none() {
+ println!("ERROR: closechannel requires a channel ID: `closechannel <channel_id>`");
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ }
+ let channel_id_vec = hex_utils::to_vec(channel_id_str.unwrap());
+ if channel_id_vec.is_none() {
+ println!("ERROR: couldn't parse channel_id as hex");
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ }
+ let mut channel_id = [0; 32];
+ channel_id.copy_from_slice(&channel_id_vec.unwrap());
+ close_channel(channel_id, channel_manager.clone());
+ }
+ "forceclosechannel" => {
+ let channel_id_str = words.next();
+ if channel_id_str.is_none() {
+ println!("ERROR: forceclosechannel requires a channel ID: `forceclosechannel <channel_id>`");
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ }
+ let channel_id_vec = hex_utils::to_vec(channel_id_str.unwrap());
+ if channel_id_vec.is_none() {
+ println!("ERROR: couldn't parse channel_id as hex");
+ print!("> ");
+ io::stdout().flush().unwrap();
+ continue;
+ }
+ let mut channel_id = [0; 32];
+ channel_id.copy_from_slice(&channel_id_vec.unwrap());
+ force_close_channel(channel_id, channel_manager.clone());
+ }
+ "nodeinfo" => node_info(channel_manager.clone(), peer_manager.clone()),
+ "listpeers" => list_peers(peer_manager.clone()),
+ _ => println!("Unknown command. See `\"help\" for available commands."),
+ }
+ }
+ print!("> ");
+ io::stdout().flush().unwrap();
+ }
+}
+
+fn help() {
+ println!("openchannel pubkey@host:port <channel_amt_satoshis>");
+ println!("sendpayment <invoice>");
+ println!("getinvoice <amt_in_millisatoshis>");
+ println!("connectpeer pubkey@host:port");
+ println!("listchannels");
+ println!("listpayments");
+ println!("closechannel <channel_id>");
+ println!("forceclosechannel <channel_id>");
+}
+
+fn node_info(channel_manager: Arc<ChannelManager>, peer_manager: Arc<PeerManager>) {
+ println!("\t{{");
+ println!("\t\t node_pubkey: {}", channel_manager.get_our_node_id());
+ println!("\t\t num_channels: {}", channel_manager.list_channels().len());
+ println!("\t\t num_usable_channels: {}", channel_manager.list_usable_channels().len());
+ println!("\t\t num_peers: {}", peer_manager.get_peer_node_ids().len());
+ println!("\t}},");
}
-fn handle_open_channel(peer_pubkey: PublicKey, peer_socket: SocketAddr,
- channel_amt_sat: u64, peer_manager: Arc<PeerManager>,
- channel_manager: Arc<ChannelManager>, event_notifier:
- mpsc::Sender<()>)
-{
- // let runtime = Runtime::new().expect("Unable to create a runtime").enable_all();
- let runtime = Builder::new_multi_thread()
- .worker_threads(3)
- .enable_all()
- .build()
- .unwrap();
- match TcpStream::connect_timeout(&peer_socket, Duration::from_secs(10)) {
- Ok(stream) => {
- runtime.block_on(|| {
- lightning_net_tokio::setup_outbound(peer_manager,
- event_notifier,
- peer_pubkey,
- stream);
- });
- match channel_manager.create_channel(peer_pubkey, channel_amt_sat, 0, 0, None) {
- Ok(_) => println!("SUCCESS: channel created! Mine some blocks to open it."),
- Err(e) => println!("ERROR: failed to open channel: {:?}", e)
- }
- },
- Err(e) => println!("ERROR: failed to connect to peer: {:?}", e)
- }
+fn list_peers(peer_manager: Arc<PeerManager>) {
+ println!("\t{{");
+ for pubkey in peer_manager.get_peer_node_ids() {
+ println!("\t\t pubkey: {}", pubkey);
+ }
+ println!("\t}},");
+}
+
+fn list_channels(channel_manager: Arc<ChannelManager>) {
+ print!("[");
+ for chan_info in channel_manager.list_channels() {
+ println!("");
+ println!("\t{{");
+ println!("\t\tchannel_id: {},", hex_utils::hex_str(&chan_info.channel_id[..]));
+ println!(
+ "\t\tpeer_pubkey: {},",
+ hex_utils::hex_str(&chan_info.remote_network_id.serialize())
+ );
+ let mut pending_channel = false;
+ match chan_info.short_channel_id {
+ Some(id) => println!("\t\tshort_channel_id: {},", id),
+ None => {
+ pending_channel = true;
+ }
+ }
+ println!("\t\tpending_open: {},", pending_channel);
+ println!("\t\tchannel_value_satoshis: {},", chan_info.channel_value_satoshis);
+ println!("\t\tchannel_can_send_payments: {},", chan_info.is_usable);
+ println!("\t}},");
+ }
+ println!("]");
+}
+
+fn list_payments(inbound_payments: PaymentInfoStorage, outbound_payments: PaymentInfoStorage) {
+ let inbound = inbound_payments.lock().unwrap();
+ let outbound = outbound_payments.lock().unwrap();
+ print!("[");
+ for (payment_hash, payment_info) in inbound.deref() {
+ println!("");
+ println!("\t{{");
+ println!("\t\tamount_millisatoshis: {},", payment_info.amt_msat);
+ println!("\t\tpayment_hash: {},", hex_utils::hex_str(&payment_hash.0));
+ println!("\t\thtlc_direction: inbound,");
+ println!(
+ "\t\thtlc_status: {},",
+ match payment_info.status {
+ HTLCStatus::Pending => "pending",
+ HTLCStatus::Succeeded => "succeeded",
+ HTLCStatus::Failed => "failed",
+ }
+ );
+
+ println!("\t}},");
+ }
+
+ for (payment_hash, payment_info) in outbound.deref() {
+ println!("");
+ println!("\t{{");
+ println!("\t\tamount_millisatoshis: {},", payment_info.amt_msat);
+ println!("\t\tpayment_hash: {},", hex_utils::hex_str(&payment_hash.0));
+ println!("\t\thtlc_direction: outbound,");
+ println!(
+ "\t\thtlc_status: {},",
+ match payment_info.status {
+ HTLCStatus::Pending => "pending",
+ HTLCStatus::Succeeded => "succeeded",
+ HTLCStatus::Failed => "failed",
+ }
+ );
+
+ println!("\t}},");
+ }
+ println!("]");
+}
+
+pub(crate) async fn connect_peer_if_necessary(
+ pubkey: PublicKey, peer_addr: SocketAddr, peer_manager: Arc<PeerManager>,
+ event_notifier: mpsc::Sender<()>,
+) -> Result<(), ()> {
+ for node_pubkey in peer_manager.get_peer_node_ids() {
+ if node_pubkey == pubkey {
+ return Ok(());
+ }
+ }
+ match lightning_net_tokio::connect_outbound(
+ Arc::clone(&peer_manager),
+ event_notifier,
+ pubkey,
+ peer_addr,
+ )
+ .await
+ {
+ Some(conn_closed_fut) => {
+ let mut closed_fut_box = Box::pin(conn_closed_fut);
+ let mut peer_connected = false;
+ while !peer_connected {
+ match futures::poll!(&mut closed_fut_box) {
+ std::task::Poll::Ready(_) => {
+ println!("ERROR: Peer disconnected before we finished the handshake");
+ return Err(());
+ }
+ std::task::Poll::Pending => {}
+ }
+ for node_pubkey in peer_manager.get_peer_node_ids() {
+ if node_pubkey == pubkey {
+ peer_connected = true;
+ }
+ }
+ // Avoid blocking the tokio context by sleeping a bit
+ tokio::time::sleep(Duration::from_millis(10)).await;
+ }
+ }
+ None => {
+ println!("ERROR: failed to connect to peer");
+ return Err(());
+ }
+ }
+ Ok(())
+}
+
+fn open_channel(
+ peer_pubkey: PublicKey, channel_amt_sat: u64, announce_channel: bool,
+ channel_manager: Arc<ChannelManager>,
+) -> Result<(), ()> {
+ let mut config = UserConfig::default();
+ if announce_channel {
+ config.channel_options.announced_channel = true;
+ }
+ // lnd's max to_self_delay is 2016, so we want to be compatible.
+ config.peer_channel_config_limits.their_to_self_delay = 2016;
+ match channel_manager.create_channel(peer_pubkey, channel_amt_sat, 0, 0, None) {
+ Ok(_) => {
+ println!("EVENT: initiated channel with peer {}. ", peer_pubkey);
+ return Ok(());
+ }
+ Err(e) => {
+ println!("ERROR: failed to open channel: {:?}", e);
+ return Err(());
+ }
+ }
+}
+
+fn send_payment(
+ payee: PublicKey, amt_msat: u64, final_cltv: u32, payment_hash: PaymentHash,
+ payment_secret: Option<PaymentSecret>, payee_features: Option<InvoiceFeatures>,
+ route_hints: Vec<RouteHintHop>,
+ router: Arc<NetGraphMsgHandler<Arc<dyn chain::Access + Send + Sync>, Arc<FilesystemLogger>>>,
+ channel_manager: Arc<ChannelManager>, payment_storage: PaymentInfoStorage,
+ logger: Arc<FilesystemLogger>,
+) {
+ let network_graph = router.network_graph.read().unwrap();
+ let first_hops = channel_manager.list_usable_channels();
+ let payer_pubkey = channel_manager.get_our_node_id();
+
+ let route = router::get_route(
+ &payer_pubkey,
+ &network_graph,
+ &payee,
+ payee_features,
+ Some(&first_hops.iter().collect::<Vec<_>>()),
+ &route_hints.iter().collect::<Vec<_>>(),
+ amt_msat,
+ final_cltv,
+ logger,
+ );
+ if let Err(e) = route {
+ println!("ERROR: failed to find route: {}", e.err);
+ return;
+ }
+ let status = match channel_manager.send_payment(&route.unwrap(), payment_hash, &payment_secret)
+ {
+ Ok(()) => {
+ println!("EVENT: initiated sending {} msats to {}", amt_msat, payee);
+ HTLCStatus::Pending
+ }
+ Err(e) => {
+ println!("ERROR: failed to send payment: {:?}", e);
+ HTLCStatus::Failed
+ }
+ };
+ let mut payments = payment_storage.lock().unwrap();
+ payments.insert(
+ payment_hash,
+ PaymentInfo {
+ preimage: None,
+ secret: payment_secret,
+ status,
+ amt_msat: MillisatAmount(Some(amt_msat)),
+ },
+ );
+}
+
+fn get_invoice(
+ amt_msat: u64, payment_storage: PaymentInfoStorage, channel_manager: Arc<ChannelManager>,
+ keys_manager: Arc<KeysManager>, network: Network,
+) {
+ let mut payments = payment_storage.lock().unwrap();
+ let currency = match network {
+ Network::Bitcoin => Currency::Bitcoin,
+ Network::Testnet => Currency::BitcoinTestnet,
+ Network::Regtest => Currency::Regtest,
+ Network::Signet => panic!("Signet unsupported"),
+ };
+ let invoice = match utils::create_invoice_from_channelmanager(
+ &channel_manager,
+ keys_manager,
+ currency,
+ Some(amt_msat),
+ "ldk-tutorial-node".to_string(),
+ ) {
+ Ok(inv) => {
+ println!("SUCCESS: generated invoice: {}", inv);
+ inv
+ }
+ Err(e) => {
+ println!("ERROR: failed to create invoice: {:?}", e);
+ return;
+ }
+ };
+
+ let mut payment_hash = PaymentHash([0; 32]);
+ payment_hash.0.copy_from_slice(&invoice.payment_hash().as_ref()[0..32]);
+ payments.insert(
+ payment_hash,
+ PaymentInfo {
+ preimage: None,
+ // We can't add payment secrets to invoices until we support features in invoices.
+ // Otherwise lnd errors with "destination hop doesn't understand payment addresses"
+ // (for context, lnd calls payment secrets "payment addresses").
+ secret: Some(invoice.payment_secret().unwrap().clone()),
+ status: HTLCStatus::Pending,
+ amt_msat: MillisatAmount(Some(amt_msat)),
+ },
+ );
+}
+
+fn close_channel(channel_id: [u8; 32], channel_manager: Arc<ChannelManager>) {
+ match channel_manager.close_channel(&channel_id) {
+ Ok(()) => println!("EVENT: initiating channel close"),
+ Err(e) => println!("ERROR: failed to close channel: {:?}", e),
+ }
+}
+
+fn force_close_channel(channel_id: [u8; 32], channel_manager: Arc<ChannelManager>) {
+ match channel_manager.force_close_channel(&channel_id) {
+ Ok(()) => println!("EVENT: initiating channel force-close"),
+ Err(e) => println!("ERROR: failed to force-close channel: {:?}", e),
+ }
+}
+
+pub(crate) fn parse_peer_info(
+ peer_pubkey_and_ip_addr: String,
+) -> Result<(PublicKey, SocketAddr), std::io::Error> {
+ let mut pubkey_and_addr = peer_pubkey_and_ip_addr.split("@");
+ let pubkey = pubkey_and_addr.next();
+ let peer_addr_str = pubkey_and_addr.next();
+ if peer_addr_str.is_none() || peer_addr_str.is_none() {
+ return Err(std::io::Error::new(
+ std::io::ErrorKind::Other,
+ "ERROR: incorrectly formatted peer info. Should be formatted as: `pubkey@host:port`",
+ ));
+ }
+
+ let peer_addr = peer_addr_str.unwrap().to_socket_addrs().map(|mut r| r.next());
+ if peer_addr.is_err() || peer_addr.as_ref().unwrap().is_none() {
+ return Err(std::io::Error::new(
+ std::io::ErrorKind::Other,
+ "ERROR: couldn't parse pubkey@host:port into a socket address",
+ ));
+ }
+
+ let pubkey = hex_utils::to_compressed_pubkey(pubkey.unwrap());
+ if pubkey.is_none() {
+ return Err(std::io::Error::new(
+ std::io::ErrorKind::Other,
+ "ERROR: unable to parse given pubkey for node",
+ ));
+ }
+
+ Ok((pubkey.unwrap(), peer_addr.unwrap().unwrap()))
}
projects / ldk-sample / blobdiff