4 ChannelManager, HTLCStatus, InvoicePayer, MillisatAmount, NetworkGraph, OnionMessenger,
5 PaymentInfo, PaymentInfoStorage, PeerManager,
7 use bitcoin::hashes::sha256::Hash as Sha256;
8 use bitcoin::hashes::Hash;
9 use bitcoin::network::constants::Network;
10 use bitcoin::secp256k1::PublicKey;
11 use lightning::chain::keysinterface::{KeysInterface, KeysManager, Recipient};
12 use lightning::ln::msgs::{DecodeError, NetAddress};
13 use lightning::ln::{PaymentHash, PaymentPreimage};
14 use lightning::onion_message::{CustomOnionMessageContents, Destination, OnionMessageContents};
15 use lightning::routing::gossip::NodeId;
16 use lightning::util::config::{ChannelHandshakeConfig, ChannelHandshakeLimits, UserConfig};
17 use lightning::util::events::EventHandler;
18 use lightning::util::ser::{MaybeReadableArgs, Writeable, Writer};
19 use lightning_invoice::payment::PaymentError;
20 use lightning_invoice::{utils, Currency, Invoice};
24 use std::net::{IpAddr, SocketAddr, ToSocketAddrs};
27 use std::str::FromStr;
29 use std::time::Duration;
31 pub(crate) struct LdkUserInfo {
32 pub(crate) bitcoind_rpc_username: String,
33 pub(crate) bitcoind_rpc_password: String,
34 pub(crate) bitcoind_rpc_port: u16,
35 pub(crate) bitcoind_rpc_host: String,
36 pub(crate) ldk_storage_dir_path: String,
37 pub(crate) ldk_peer_listening_port: u16,
38 pub(crate) ldk_announced_listen_addr: Vec<NetAddress>,
39 pub(crate) ldk_announced_node_name: [u8; 32],
40 pub(crate) network: Network,
43 pub(crate) fn parse_startup_args() -> Result<LdkUserInfo, ()> {
44 if env::args().len() < 3 {
45 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] [announced-node-name announced-listen-addr*]`");
48 let bitcoind_rpc_info = env::args().skip(1).next().unwrap();
49 let bitcoind_rpc_info_parts: Vec<&str> = bitcoind_rpc_info.rsplitn(2, "@").collect();
50 if bitcoind_rpc_info_parts.len() != 2 {
51 println!("ERROR: bad bitcoind RPC URL provided");
54 let rpc_user_and_password: Vec<&str> = bitcoind_rpc_info_parts[1].split(":").collect();
55 if rpc_user_and_password.len() != 2 {
56 println!("ERROR: bad bitcoind RPC username/password combo provided");
59 let bitcoind_rpc_username = rpc_user_and_password[0].to_string();
60 let bitcoind_rpc_password = rpc_user_and_password[1].to_string();
61 let bitcoind_rpc_path: Vec<&str> = bitcoind_rpc_info_parts[0].split(":").collect();
62 if bitcoind_rpc_path.len() != 2 {
63 println!("ERROR: bad bitcoind RPC path provided");
66 let bitcoind_rpc_host = bitcoind_rpc_path[0].to_string();
67 let bitcoind_rpc_port = bitcoind_rpc_path[1].parse::<u16>().unwrap();
69 let ldk_storage_dir_path = env::args().skip(2).next().unwrap();
71 let mut ldk_peer_port_set = true;
72 let ldk_peer_listening_port: u16 = match env::args().skip(3).next().map(|p| p.parse()) {
75 ldk_peer_port_set = false;
79 ldk_peer_port_set = false;
84 let mut arg_idx = match ldk_peer_port_set {
88 let network: Network = match env::args().skip(arg_idx).next().as_ref().map(String::as_str) {
89 Some("testnet") => Network::Testnet,
90 Some("regtest") => Network::Regtest,
91 Some("signet") => Network::Signet,
93 panic!("Unsupported network provided. Options are: `regtest`, `testnet`, and `signet`. Got {}", net);
95 None => Network::Testnet,
98 let ldk_announced_node_name = match env::args().skip(arg_idx + 1).next().as_ref() {
101 panic!("Node Alias can not be longer than 32 bytes");
104 let mut bytes = [0; 32];
105 bytes[..s.len()].copy_from_slice(s.as_bytes());
111 let mut ldk_announced_listen_addr = Vec::new();
113 match env::args().skip(arg_idx + 1).next().as_ref() {
114 Some(s) => match IpAddr::from_str(s) {
115 Ok(IpAddr::V4(a)) => {
116 ldk_announced_listen_addr
117 .push(NetAddress::IPv4 { addr: a.octets(), port: ldk_peer_listening_port });
120 Ok(IpAddr::V6(a)) => {
121 ldk_announced_listen_addr
122 .push(NetAddress::IPv6 { addr: a.octets(), port: ldk_peer_listening_port });
125 Err(_) => panic!("Failed to parse announced-listen-addr into an IP address"),
132 bitcoind_rpc_username,
133 bitcoind_rpc_password,
136 ldk_storage_dir_path,
137 ldk_peer_listening_port,
138 ldk_announced_listen_addr,
139 ldk_announced_node_name,
144 struct UserOnionMessageContents {
149 impl CustomOnionMessageContents for UserOnionMessageContents {
150 fn tlv_type(&self) -> u64 {
154 impl MaybeReadableArgs<u64> for UserOnionMessageContents {
155 fn read<R: std::io::Read>(_r: &mut R, _args: u64) -> Result<Option<Self>, DecodeError> {
156 // UserOnionMessageContents is only ever passed to `send_onion_message`, never to an
157 // `OnionMessageHandler`, thus it does not need to implement the read side here.
161 impl Writeable for UserOnionMessageContents {
162 fn write<W: Writer>(&self, w: &mut W) -> Result<(), std::io::Error> {
163 w.write_all(&self.data)
167 pub(crate) async fn poll_for_user_input<E: EventHandler>(
168 invoice_payer: Arc<InvoicePayer<E>>, peer_manager: Arc<PeerManager>,
169 channel_manager: Arc<ChannelManager>, keys_manager: Arc<KeysManager>,
170 network_graph: Arc<NetworkGraph>, onion_messenger: Arc<OnionMessenger>,
171 inbound_payments: PaymentInfoStorage, outbound_payments: PaymentInfoStorage,
172 ldk_data_dir: String, network: Network, logger: Arc<disk::FilesystemLogger>,
175 "LDK startup successful. Enter \"help\" to view available commands. Press Ctrl-D to quit."
177 println!("LDK logs are available at <your-supplied-ldk-data-dir-path>/.ldk/logs");
178 println!("Local Node ID is {}.", channel_manager.get_our_node_id());
181 io::stdout().flush().unwrap(); // Without flushing, the `>` doesn't print
182 let mut line = String::new();
183 if let Err(e) = io::stdin().read_line(&mut line) {
184 break println!("ERROR: {}", e);
188 // We hit EOF / Ctrl-D
192 let mut words = line.split_whitespace();
193 if let Some(word) = words.next() {
197 let peer_pubkey_and_ip_addr = words.next();
198 let channel_value_sat = words.next();
199 if peer_pubkey_and_ip_addr.is_none() || channel_value_sat.is_none() {
200 println!("ERROR: openchannel has 2 required arguments: `openchannel pubkey@host:port channel_amt_satoshis` [--public]");
203 let peer_pubkey_and_ip_addr = peer_pubkey_and_ip_addr.unwrap();
204 let (pubkey, peer_addr) =
205 match parse_peer_info(peer_pubkey_and_ip_addr.to_string()) {
208 println!("{:?}", e.into_inner().unwrap());
213 let chan_amt_sat: Result<u64, _> = channel_value_sat.unwrap().parse();
214 if chan_amt_sat.is_err() {
215 println!("ERROR: channel amount must be a number");
219 if connect_peer_if_necessary(pubkey, peer_addr, peer_manager.clone())
226 let announce_channel = match words.next() {
227 Some("--public") | Some("--public=true") => true,
228 Some("--public=false") => false,
230 println!("ERROR: invalid `--public` command format. Valid formats: `--public`, `--public=true` `--public=false`");
238 chan_amt_sat.unwrap(),
240 channel_manager.clone(),
244 let peer_data_path = format!("{}/channel_peer_data", ldk_data_dir.clone());
245 let _ = disk::persist_channel_peer(
246 Path::new(&peer_data_path),
247 peer_pubkey_and_ip_addr,
252 let invoice_str = words.next();
253 if invoice_str.is_none() {
254 println!("ERROR: sendpayment requires an invoice: `sendpayment <invoice>`");
258 let invoice = match Invoice::from_str(invoice_str.unwrap()) {
261 println!("ERROR: invalid invoice: {:?}", e);
266 send_payment(&*invoice_payer, &invoice, outbound_payments.clone());
269 let dest_pubkey = match words.next() {
270 Some(dest) => match hex_utils::to_compressed_pubkey(dest) {
273 println!("ERROR: couldn't parse destination pubkey");
278 println!("ERROR: keysend requires a destination pubkey: `keysend <dest_pubkey> <amt_msat>`");
282 let amt_msat_str = match words.next() {
285 println!("ERROR: keysend requires an amount in millisatoshis: `keysend <dest_pubkey> <amt_msat>`");
289 let amt_msat: u64 = match amt_msat_str.parse() {
292 println!("ERROR: couldn't parse amount_msat: {}", e);
301 outbound_payments.clone(),
305 let amt_str = words.next();
306 if amt_str.is_none() {
307 println!("ERROR: getinvoice requires an amount in millisatoshis");
311 let amt_msat: Result<u64, _> = amt_str.unwrap().parse();
312 if amt_msat.is_err() {
313 println!("ERROR: getinvoice provided payment amount was not a number");
317 let expiry_secs_str = words.next();
318 if expiry_secs_str.is_none() {
319 println!("ERROR: getinvoice requires an expiry in seconds");
323 let expiry_secs: Result<u32, _> = expiry_secs_str.unwrap().parse();
324 if expiry_secs.is_err() {
325 println!("ERROR: getinvoice provided expiry was not a number");
331 Arc::clone(&inbound_payments),
333 Arc::clone(&keys_manager),
335 expiry_secs.unwrap(),
340 let peer_pubkey_and_ip_addr = words.next();
341 if peer_pubkey_and_ip_addr.is_none() {
342 println!("ERROR: connectpeer requires peer connection info: `connectpeer pubkey@host:port`");
345 let (pubkey, peer_addr) =
346 match parse_peer_info(peer_pubkey_and_ip_addr.unwrap().to_string()) {
349 println!("{:?}", e.into_inner().unwrap());
353 if connect_peer_if_necessary(pubkey, peer_addr, peer_manager.clone())
357 println!("SUCCESS: connected to peer {}", pubkey);
360 "listchannels" => list_channels(&channel_manager, &network_graph),
362 list_payments(inbound_payments.clone(), outbound_payments.clone())
365 let channel_id_str = words.next();
366 if channel_id_str.is_none() {
367 println!("ERROR: closechannel requires a channel ID: `closechannel <channel_id> <peer_pubkey>`");
370 let channel_id_vec = hex_utils::to_vec(channel_id_str.unwrap());
371 if channel_id_vec.is_none() || channel_id_vec.as_ref().unwrap().len() != 32 {
372 println!("ERROR: couldn't parse channel_id");
375 let mut channel_id = [0; 32];
376 channel_id.copy_from_slice(&channel_id_vec.unwrap());
378 let peer_pubkey_str = words.next();
379 if peer_pubkey_str.is_none() {
380 println!("ERROR: closechannel requires a peer pubkey: `closechannel <channel_id> <peer_pubkey>`");
383 let peer_pubkey_vec = match hex_utils::to_vec(peer_pubkey_str.unwrap()) {
384 Some(peer_pubkey_vec) => peer_pubkey_vec,
386 println!("ERROR: couldn't parse peer_pubkey");
390 let peer_pubkey = match PublicKey::from_slice(&peer_pubkey_vec) {
391 Ok(peer_pubkey) => peer_pubkey,
393 println!("ERROR: couldn't parse peer_pubkey");
398 close_channel(channel_id, peer_pubkey, channel_manager.clone());
400 "forceclosechannel" => {
401 let channel_id_str = words.next();
402 if channel_id_str.is_none() {
403 println!("ERROR: forceclosechannel requires a channel ID: `forceclosechannel <channel_id> <peer_pubkey>`");
406 let channel_id_vec = hex_utils::to_vec(channel_id_str.unwrap());
407 if channel_id_vec.is_none() || channel_id_vec.as_ref().unwrap().len() != 32 {
408 println!("ERROR: couldn't parse channel_id");
411 let mut channel_id = [0; 32];
412 channel_id.copy_from_slice(&channel_id_vec.unwrap());
414 let peer_pubkey_str = words.next();
415 if peer_pubkey_str.is_none() {
416 println!("ERROR: forceclosechannel requires a peer pubkey: `forceclosechannel <channel_id> <peer_pubkey>`");
419 let peer_pubkey_vec = match hex_utils::to_vec(peer_pubkey_str.unwrap()) {
420 Some(peer_pubkey_vec) => peer_pubkey_vec,
422 println!("ERROR: couldn't parse peer_pubkey");
426 let peer_pubkey = match PublicKey::from_slice(&peer_pubkey_vec) {
427 Ok(peer_pubkey) => peer_pubkey,
429 println!("ERROR: couldn't parse peer_pubkey");
434 force_close_channel(channel_id, peer_pubkey, channel_manager.clone());
436 "nodeinfo" => node_info(&channel_manager, &peer_manager),
437 "listpeers" => list_peers(peer_manager.clone()),
439 const MSG_STARTPOS: usize = "signmessage".len() + 1;
440 if line.as_bytes().len() <= MSG_STARTPOS {
441 println!("ERROR: signmsg requires a message");
446 lightning::util::message_signing::sign(
447 &line.as_bytes()[MSG_STARTPOS..],
448 &keys_manager.get_node_secret(Recipient::Node).unwrap()
452 "sendonionmessage" => {
453 let path_pks_str = words.next();
454 if path_pks_str.is_none() {
456 "ERROR: sendonionmessage requires at least one node id for the path"
460 let mut node_pks = Vec::new();
461 let mut errored = false;
462 for pk_str in path_pks_str.unwrap().split(",") {
463 let node_pubkey_vec = match hex_utils::to_vec(pk_str) {
464 Some(peer_pubkey_vec) => peer_pubkey_vec,
466 println!("ERROR: couldn't parse peer_pubkey");
471 let node_pubkey = match PublicKey::from_slice(&node_pubkey_vec) {
472 Ok(peer_pubkey) => peer_pubkey,
474 println!("ERROR: couldn't parse peer_pubkey");
479 node_pks.push(node_pubkey);
484 let tlv_type = match words.next().map(|ty_str| ty_str.parse()) {
485 Some(Ok(ty)) if ty >= 64 => ty,
487 println!("Need an integral message type above 64");
491 let data = match words.next().map(|s| hex_utils::to_vec(s)) {
492 Some(Some(data)) => data,
494 println!("Need a hex data string");
498 let destination_pk = node_pks.pop().unwrap();
499 match onion_messenger.send_onion_message(
501 Destination::Node(destination_pk),
502 OnionMessageContents::Custom(UserOnionMessageContents { tlv_type, data }),
505 Ok(()) => println!("SUCCESS: forwarded onion message to first hop"),
506 Err(e) => println!("ERROR: failed to send onion message: {:?}", e),
509 "quit" | "exit" => break,
510 _ => println!("Unknown command. See `\"help\" for available commands."),
517 let package_version = env!("CARGO_PKG_VERSION");
518 let package_name = env!("CARGO_PKG_NAME");
519 println!("\nVERSION:");
520 println!(" {} v{}", package_name, package_version);
521 println!("\nUSAGE:");
522 println!(" Command [arguments]");
523 println!("\nCOMMANDS:");
524 println!(" help\tShows a list of commands.");
525 println!(" quit\tClose the application.");
526 println!("\n Channels:");
527 println!(" openchannel pubkey@host:port <amt_satoshis> [--public]");
528 println!(" closechannel <channel_id> <peer_pubkey>");
529 println!(" forceclosechannel <channel_id> <peer_pubkey>");
530 println!(" listchannels");
531 println!("\n Peers:");
532 println!(" connectpeer pubkey@host:port");
533 println!(" listpeers");
534 println!("\n Payments:");
535 println!(" sendpayment <invoice>");
536 println!(" keysend <dest_pubkey> <amt_msats>");
537 println!(" listpayments");
538 println!("\n Invoices:");
539 println!(" getinvoice <amt_msats> <expiry_secs>");
540 println!("\n Other:");
541 println!(" signmessage <message>");
543 " sendonionmessage <node_id_1,node_id_2,..,destination_node_id> <type> <hex_bytes>"
545 println!(" nodeinfo");
548 fn node_info(channel_manager: &Arc<ChannelManager>, peer_manager: &Arc<PeerManager>) {
550 println!("\t\t node_pubkey: {}", channel_manager.get_our_node_id());
551 let chans = channel_manager.list_channels();
552 println!("\t\t num_channels: {}", chans.len());
553 println!("\t\t num_usable_channels: {}", chans.iter().filter(|c| c.is_usable).count());
554 let local_balance_msat = chans.iter().map(|c| c.balance_msat).sum::<u64>();
555 println!("\t\t local_balance_msat: {}", local_balance_msat);
556 println!("\t\t num_peers: {}", peer_manager.get_peer_node_ids().len());
560 fn list_peers(peer_manager: Arc<PeerManager>) {
562 for pubkey in peer_manager.get_peer_node_ids() {
563 println!("\t\t pubkey: {}", pubkey);
568 fn list_channels(channel_manager: &Arc<ChannelManager>, network_graph: &Arc<NetworkGraph>) {
570 for chan_info in channel_manager.list_channels() {
573 println!("\t\tchannel_id: {},", hex_utils::hex_str(&chan_info.channel_id[..]));
574 if let Some(funding_txo) = chan_info.funding_txo {
575 println!("\t\tfunding_txid: {},", funding_txo.txid);
579 "\t\tpeer_pubkey: {},",
580 hex_utils::hex_str(&chan_info.counterparty.node_id.serialize())
582 if let Some(node_info) = network_graph
585 .get(&NodeId::from_pubkey(&chan_info.counterparty.node_id))
587 if let Some(announcement) = &node_info.announcement_info {
588 println!("\t\tpeer_alias: {}", announcement.alias);
592 if let Some(id) = chan_info.short_channel_id {
593 println!("\t\tshort_channel_id: {},", id);
595 println!("\t\tis_channel_ready: {},", chan_info.is_channel_ready);
596 println!("\t\tchannel_value_satoshis: {},", chan_info.channel_value_satoshis);
597 println!("\t\tlocal_balance_msat: {},", chan_info.balance_msat);
598 if chan_info.is_usable {
599 println!("\t\tavailable_balance_for_send_msat: {},", chan_info.outbound_capacity_msat);
600 println!("\t\tavailable_balance_for_recv_msat: {},", chan_info.inbound_capacity_msat);
602 println!("\t\tchannel_can_send_payments: {},", chan_info.is_usable);
603 println!("\t\tpublic: {},", chan_info.is_public);
609 fn list_payments(inbound_payments: PaymentInfoStorage, outbound_payments: PaymentInfoStorage) {
610 let inbound = inbound_payments.lock().unwrap();
611 let outbound = outbound_payments.lock().unwrap();
613 for (payment_hash, payment_info) in inbound.deref() {
616 println!("\t\tamount_millisatoshis: {},", payment_info.amt_msat);
617 println!("\t\tpayment_hash: {},", hex_utils::hex_str(&payment_hash.0));
618 println!("\t\thtlc_direction: inbound,");
620 "\t\thtlc_status: {},",
621 match payment_info.status {
622 HTLCStatus::Pending => "pending",
623 HTLCStatus::Succeeded => "succeeded",
624 HTLCStatus::Failed => "failed",
631 for (payment_hash, payment_info) in outbound.deref() {
634 println!("\t\tamount_millisatoshis: {},", payment_info.amt_msat);
635 println!("\t\tpayment_hash: {},", hex_utils::hex_str(&payment_hash.0));
636 println!("\t\thtlc_direction: outbound,");
638 "\t\thtlc_status: {},",
639 match payment_info.status {
640 HTLCStatus::Pending => "pending",
641 HTLCStatus::Succeeded => "succeeded",
642 HTLCStatus::Failed => "failed",
651 pub(crate) async fn connect_peer_if_necessary(
652 pubkey: PublicKey, peer_addr: SocketAddr, peer_manager: Arc<PeerManager>,
653 ) -> Result<(), ()> {
654 for node_pubkey in peer_manager.get_peer_node_ids() {
655 if node_pubkey == pubkey {
659 let res = do_connect_peer(pubkey, peer_addr, peer_manager).await;
661 println!("ERROR: failed to connect to peer");
666 pub(crate) async fn do_connect_peer(
667 pubkey: PublicKey, peer_addr: SocketAddr, peer_manager: Arc<PeerManager>,
668 ) -> Result<(), ()> {
669 match lightning_net_tokio::connect_outbound(Arc::clone(&peer_manager), pubkey, peer_addr).await
671 Some(connection_closed_future) => {
672 let mut connection_closed_future = Box::pin(connection_closed_future);
674 match futures::poll!(&mut connection_closed_future) {
675 std::task::Poll::Ready(_) => {
678 std::task::Poll::Pending => {}
680 // Avoid blocking the tokio context by sleeping a bit
681 match peer_manager.get_peer_node_ids().iter().find(|id| **id == pubkey) {
682 Some(_) => return Ok(()),
683 None => tokio::time::sleep(Duration::from_millis(10)).await,
692 peer_pubkey: PublicKey, channel_amt_sat: u64, announced_channel: bool,
693 channel_manager: Arc<ChannelManager>,
694 ) -> Result<(), ()> {
695 let config = UserConfig {
696 channel_handshake_limits: ChannelHandshakeLimits {
697 // lnd's max to_self_delay is 2016, so we want to be compatible.
698 their_to_self_delay: 2016,
701 channel_handshake_config: ChannelHandshakeConfig {
708 match channel_manager.create_channel(peer_pubkey, channel_amt_sat, 0, 0, Some(config)) {
710 println!("EVENT: initiated channel with peer {}. ", peer_pubkey);
714 println!("ERROR: failed to open channel: {:?}", e);
720 fn send_payment<E: EventHandler>(
721 invoice_payer: &InvoicePayer<E>, invoice: &Invoice, payment_storage: PaymentInfoStorage,
723 let status = match invoice_payer.pay_invoice(invoice) {
725 let payee_pubkey = invoice.recover_payee_pub_key();
726 let amt_msat = invoice.amount_milli_satoshis().unwrap();
727 println!("EVENT: initiated sending {} msats to {}", amt_msat, payee_pubkey);
731 Err(PaymentError::Invoice(e)) => {
732 println!("ERROR: invalid invoice: {}", e);
736 Err(PaymentError::Routing(e)) => {
737 println!("ERROR: failed to find route: {}", e.err);
741 Err(PaymentError::Sending(e)) => {
742 println!("ERROR: failed to send payment: {:?}", e);
747 let payment_hash = PaymentHash(invoice.payment_hash().clone().into_inner());
748 let payment_secret = Some(invoice.payment_secret().clone());
750 let mut payments = payment_storage.lock().unwrap();
755 secret: payment_secret,
757 amt_msat: MillisatAmount(invoice.amount_milli_satoshis()),
762 fn keysend<E: EventHandler, K: KeysInterface>(
763 invoice_payer: &InvoicePayer<E>, payee_pubkey: PublicKey, amt_msat: u64, keys: &K,
764 payment_storage: PaymentInfoStorage,
766 let payment_preimage = keys.get_secure_random_bytes();
768 let status = match invoice_payer.pay_pubkey(
770 PaymentPreimage(payment_preimage),
775 println!("EVENT: initiated sending {} msats to {}", amt_msat, payee_pubkey);
779 Err(PaymentError::Invoice(e)) => {
780 println!("ERROR: invalid payee: {}", e);
784 Err(PaymentError::Routing(e)) => {
785 println!("ERROR: failed to find route: {}", e.err);
789 Err(PaymentError::Sending(e)) => {
790 println!("ERROR: failed to send payment: {:?}", e);
796 let mut payments = payment_storage.lock().unwrap();
798 PaymentHash(Sha256::hash(&payment_preimage).into_inner()),
803 amt_msat: MillisatAmount(Some(amt_msat)),
809 amt_msat: u64, payment_storage: PaymentInfoStorage, channel_manager: &ChannelManager,
810 keys_manager: Arc<KeysManager>, network: Network, expiry_secs: u32,
811 logger: Arc<disk::FilesystemLogger>,
813 let mut payments = payment_storage.lock().unwrap();
814 let currency = match network {
815 Network::Bitcoin => Currency::Bitcoin,
816 Network::Testnet => Currency::BitcoinTestnet,
817 Network::Regtest => Currency::Regtest,
818 Network::Signet => Currency::Signet,
820 let invoice = match utils::create_invoice_from_channelmanager(
826 "ldk-tutorial-node".to_string(),
830 println!("SUCCESS: generated invoice: {}", inv);
834 println!("ERROR: failed to create invoice: {:?}", e);
839 let payment_hash = PaymentHash(invoice.payment_hash().clone().into_inner());
844 secret: Some(invoice.payment_secret().clone()),
845 status: HTLCStatus::Pending,
846 amt_msat: MillisatAmount(Some(amt_msat)),
852 channel_id: [u8; 32], counterparty_node_id: PublicKey, channel_manager: Arc<ChannelManager>,
854 match channel_manager.close_channel(&channel_id, &counterparty_node_id) {
855 Ok(()) => println!("EVENT: initiating channel close"),
856 Err(e) => println!("ERROR: failed to close channel: {:?}", e),
860 fn force_close_channel(
861 channel_id: [u8; 32], counterparty_node_id: PublicKey, channel_manager: Arc<ChannelManager>,
863 match channel_manager.force_close_broadcasting_latest_txn(&channel_id, &counterparty_node_id) {
864 Ok(()) => println!("EVENT: initiating channel force-close"),
865 Err(e) => println!("ERROR: failed to force-close channel: {:?}", e),
869 pub(crate) fn parse_peer_info(
870 peer_pubkey_and_ip_addr: String,
871 ) -> Result<(PublicKey, SocketAddr), std::io::Error> {
872 let mut pubkey_and_addr = peer_pubkey_and_ip_addr.split("@");
873 let pubkey = pubkey_and_addr.next();
874 let peer_addr_str = pubkey_and_addr.next();
875 if peer_addr_str.is_none() {
876 return Err(std::io::Error::new(
877 std::io::ErrorKind::Other,
878 "ERROR: incorrectly formatted peer info. Should be formatted as: `pubkey@host:port`",
882 let peer_addr = peer_addr_str.unwrap().to_socket_addrs().map(|mut r| r.next());
883 if peer_addr.is_err() || peer_addr.as_ref().unwrap().is_none() {
884 return Err(std::io::Error::new(
885 std::io::ErrorKind::Other,
886 "ERROR: couldn't parse pubkey@host:port into a socket address",
890 let pubkey = hex_utils::to_compressed_pubkey(pubkey.unwrap());
891 if pubkey.is_none() {
892 return Err(std::io::Error::new(
893 std::io::ErrorKind::Other,
894 "ERROR: unable to parse given pubkey for node",
898 Ok((pubkey.unwrap(), peer_addr.unwrap().unwrap()))