1 use crate::disk::{self, INBOUND_PAYMENTS_FNAME, OUTBOUND_PAYMENTS_FNAME};
4 ChannelManager, HTLCStatus, MillisatAmount, NetworkGraph, OnionMessenger, PaymentInfo,
5 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::{EntropySource, KeysManager};
12 use lightning::ln::channelmanager::{PaymentId, RecipientOnionFields, Retry};
13 use lightning::ln::msgs::NetAddress;
14 use lightning::ln::{PaymentHash, PaymentPreimage};
15 use lightning::onion_message::{CustomOnionMessageContents, Destination, OnionMessageContents};
16 use lightning::routing::gossip::NodeId;
17 use lightning::routing::router::{PaymentParameters, RouteParameters};
18 use lightning::util::config::{ChannelHandshakeConfig, ChannelHandshakeLimits, UserConfig};
19 use lightning::util::persist::KVStorePersister;
20 use lightning::util::ser::{Writeable, Writer};
21 use lightning_invoice::payment::pay_invoice;
22 use lightning_invoice::{utils, Currency, Invoice};
23 use lightning_persister::FilesystemPersister;
27 use std::net::{SocketAddr, ToSocketAddrs};
29 use std::str::FromStr;
30 use std::sync::{Arc, Mutex};
31 use std::time::Duration;
33 pub(crate) struct LdkUserInfo {
34 pub(crate) bitcoind_rpc_username: String,
35 pub(crate) bitcoind_rpc_password: String,
36 pub(crate) bitcoind_rpc_port: u16,
37 pub(crate) bitcoind_rpc_host: String,
38 pub(crate) ldk_storage_dir_path: String,
39 pub(crate) ldk_peer_listening_port: u16,
40 pub(crate) ldk_announced_listen_addr: Vec<NetAddress>,
41 pub(crate) ldk_announced_node_name: [u8; 32],
42 pub(crate) network: Network,
45 struct UserOnionMessageContents {
50 impl CustomOnionMessageContents for UserOnionMessageContents {
51 fn tlv_type(&self) -> u64 {
56 impl Writeable for UserOnionMessageContents {
57 fn write<W: Writer>(&self, w: &mut W) -> Result<(), std::io::Error> {
58 w.write_all(&self.data)
62 pub(crate) async fn poll_for_user_input(
63 peer_manager: Arc<PeerManager>, channel_manager: Arc<ChannelManager>,
64 keys_manager: Arc<KeysManager>, network_graph: Arc<NetworkGraph>,
65 onion_messenger: Arc<OnionMessenger>, inbound_payments: Arc<Mutex<PaymentInfoStorage>>,
66 outbound_payments: Arc<Mutex<PaymentInfoStorage>>, ldk_data_dir: String, network: Network,
67 logger: Arc<disk::FilesystemLogger>, persister: Arc<FilesystemPersister>,
70 "LDK startup successful. Enter \"help\" to view available commands. Press Ctrl-D to quit."
72 println!("LDK logs are available at <your-supplied-ldk-data-dir-path>/.ldk/logs");
73 println!("Local Node ID is {}.", channel_manager.get_our_node_id());
76 io::stdout().flush().unwrap(); // Without flushing, the `>` doesn't print
77 let mut line = String::new();
78 if let Err(e) = io::stdin().read_line(&mut line) {
79 break println!("ERROR: {}", e);
83 // We hit EOF / Ctrl-D
87 let mut words = line.split_whitespace();
88 if let Some(word) = words.next() {
92 let peer_pubkey_and_ip_addr = words.next();
93 let channel_value_sat = words.next();
94 if peer_pubkey_and_ip_addr.is_none() || channel_value_sat.is_none() {
95 println!("ERROR: openchannel has 2 required arguments: `openchannel pubkey@host:port channel_amt_satoshis` [--public]");
98 let peer_pubkey_and_ip_addr = peer_pubkey_and_ip_addr.unwrap();
99 let (pubkey, peer_addr) =
100 match parse_peer_info(peer_pubkey_and_ip_addr.to_string()) {
103 println!("{:?}", e.into_inner().unwrap());
108 let chan_amt_sat: Result<u64, _> = channel_value_sat.unwrap().parse();
109 if chan_amt_sat.is_err() {
110 println!("ERROR: channel amount must be a number");
114 if connect_peer_if_necessary(pubkey, peer_addr, peer_manager.clone())
121 let announce_channel = match words.next() {
122 Some("--public") | Some("--public=true") => true,
123 Some("--public=false") => false,
125 println!("ERROR: invalid `--public` command format. Valid formats: `--public`, `--public=true` `--public=false`");
133 chan_amt_sat.unwrap(),
135 channel_manager.clone(),
139 let peer_data_path = format!("{}/channel_peer_data", ldk_data_dir.clone());
140 let _ = disk::persist_channel_peer(
141 Path::new(&peer_data_path),
142 peer_pubkey_and_ip_addr,
147 let invoice_str = words.next();
148 if invoice_str.is_none() {
149 println!("ERROR: sendpayment requires an invoice: `sendpayment <invoice>`");
153 let invoice = match Invoice::from_str(invoice_str.unwrap()) {
156 println!("ERROR: invalid invoice: {:?}", e);
164 &mut outbound_payments.lock().unwrap(),
169 let dest_pubkey = match words.next() {
170 Some(dest) => match hex_utils::to_compressed_pubkey(dest) {
173 println!("ERROR: couldn't parse destination pubkey");
178 println!("ERROR: keysend requires a destination pubkey: `keysend <dest_pubkey> <amt_msat>`");
182 let amt_msat_str = match words.next() {
185 println!("ERROR: keysend requires an amount in millisatoshis: `keysend <dest_pubkey> <amt_msat>`");
189 let amt_msat: u64 = match amt_msat_str.parse() {
192 println!("ERROR: couldn't parse amount_msat: {}", e);
201 &mut outbound_payments.lock().unwrap(),
206 let amt_str = words.next();
207 if amt_str.is_none() {
208 println!("ERROR: getinvoice requires an amount in millisatoshis");
212 let amt_msat: Result<u64, _> = amt_str.unwrap().parse();
213 if amt_msat.is_err() {
214 println!("ERROR: getinvoice provided payment amount was not a number");
218 let expiry_secs_str = words.next();
219 if expiry_secs_str.is_none() {
220 println!("ERROR: getinvoice requires an expiry in seconds");
224 let expiry_secs: Result<u32, _> = expiry_secs_str.unwrap().parse();
225 if expiry_secs.is_err() {
226 println!("ERROR: getinvoice provided expiry was not a number");
230 let mut inbound_payments = inbound_payments.lock().unwrap();
233 &mut inbound_payments,
235 Arc::clone(&keys_manager),
237 expiry_secs.unwrap(),
240 persister.persist(INBOUND_PAYMENTS_FNAME, &*inbound_payments).unwrap();
243 let peer_pubkey_and_ip_addr = words.next();
244 if peer_pubkey_and_ip_addr.is_none() {
245 println!("ERROR: connectpeer requires peer connection info: `connectpeer pubkey@host:port`");
248 let (pubkey, peer_addr) =
249 match parse_peer_info(peer_pubkey_and_ip_addr.unwrap().to_string()) {
252 println!("{:?}", e.into_inner().unwrap());
256 if connect_peer_if_necessary(pubkey, peer_addr, peer_manager.clone())
260 println!("SUCCESS: connected to peer {}", pubkey);
263 "disconnectpeer" => {
264 let peer_pubkey = words.next();
265 if peer_pubkey.is_none() {
266 println!("ERROR: disconnectpeer requires peer public key: `disconnectpeer <peer_pubkey>`");
271 match bitcoin::secp256k1::PublicKey::from_str(peer_pubkey.unwrap()) {
272 Ok(pubkey) => pubkey,
274 println!("ERROR: {}", e.to_string());
279 if do_disconnect_peer(
281 peer_manager.clone(),
282 channel_manager.clone(),
286 println!("SUCCESS: disconnected from peer {}", peer_pubkey);
289 "listchannels" => list_channels(&channel_manager, &network_graph),
290 "listpayments" => list_payments(
291 &inbound_payments.lock().unwrap(),
292 &outbound_payments.lock().unwrap(),
295 let channel_id_str = words.next();
296 if channel_id_str.is_none() {
297 println!("ERROR: closechannel requires a channel ID: `closechannel <channel_id> <peer_pubkey>`");
300 let channel_id_vec = hex_utils::to_vec(channel_id_str.unwrap());
301 if channel_id_vec.is_none() || channel_id_vec.as_ref().unwrap().len() != 32 {
302 println!("ERROR: couldn't parse channel_id");
305 let mut channel_id = [0; 32];
306 channel_id.copy_from_slice(&channel_id_vec.unwrap());
308 let peer_pubkey_str = words.next();
309 if peer_pubkey_str.is_none() {
310 println!("ERROR: closechannel requires a peer pubkey: `closechannel <channel_id> <peer_pubkey>`");
313 let peer_pubkey_vec = match hex_utils::to_vec(peer_pubkey_str.unwrap()) {
314 Some(peer_pubkey_vec) => peer_pubkey_vec,
316 println!("ERROR: couldn't parse peer_pubkey");
320 let peer_pubkey = match PublicKey::from_slice(&peer_pubkey_vec) {
321 Ok(peer_pubkey) => peer_pubkey,
323 println!("ERROR: couldn't parse peer_pubkey");
328 close_channel(channel_id, peer_pubkey, channel_manager.clone());
330 "forceclosechannel" => {
331 let channel_id_str = words.next();
332 if channel_id_str.is_none() {
333 println!("ERROR: forceclosechannel requires a channel ID: `forceclosechannel <channel_id> <peer_pubkey>`");
336 let channel_id_vec = hex_utils::to_vec(channel_id_str.unwrap());
337 if channel_id_vec.is_none() || channel_id_vec.as_ref().unwrap().len() != 32 {
338 println!("ERROR: couldn't parse channel_id");
341 let mut channel_id = [0; 32];
342 channel_id.copy_from_slice(&channel_id_vec.unwrap());
344 let peer_pubkey_str = words.next();
345 if peer_pubkey_str.is_none() {
346 println!("ERROR: forceclosechannel requires a peer pubkey: `forceclosechannel <channel_id> <peer_pubkey>`");
349 let peer_pubkey_vec = match hex_utils::to_vec(peer_pubkey_str.unwrap()) {
350 Some(peer_pubkey_vec) => peer_pubkey_vec,
352 println!("ERROR: couldn't parse peer_pubkey");
356 let peer_pubkey = match PublicKey::from_slice(&peer_pubkey_vec) {
357 Ok(peer_pubkey) => peer_pubkey,
359 println!("ERROR: couldn't parse peer_pubkey");
364 force_close_channel(channel_id, peer_pubkey, channel_manager.clone());
366 "nodeinfo" => node_info(&channel_manager, &peer_manager),
367 "listpeers" => list_peers(peer_manager.clone()),
369 const MSG_STARTPOS: usize = "signmessage".len() + 1;
370 if line.as_bytes().len() <= MSG_STARTPOS {
371 println!("ERROR: signmsg requires a message");
376 lightning::util::message_signing::sign(
377 &line.as_bytes()[MSG_STARTPOS..],
378 &keys_manager.get_node_secret_key()
382 "sendonionmessage" => {
383 let path_pks_str = words.next();
384 if path_pks_str.is_none() {
386 "ERROR: sendonionmessage requires at least one node id for the path"
390 let mut node_pks = Vec::new();
391 let mut errored = false;
392 for pk_str in path_pks_str.unwrap().split(",") {
393 let node_pubkey_vec = match hex_utils::to_vec(pk_str) {
394 Some(peer_pubkey_vec) => peer_pubkey_vec,
396 println!("ERROR: couldn't parse peer_pubkey");
401 let node_pubkey = match PublicKey::from_slice(&node_pubkey_vec) {
402 Ok(peer_pubkey) => peer_pubkey,
404 println!("ERROR: couldn't parse peer_pubkey");
409 node_pks.push(node_pubkey);
414 let tlv_type = match words.next().map(|ty_str| ty_str.parse()) {
415 Some(Ok(ty)) if ty >= 64 => ty,
417 println!("Need an integral message type above 64");
421 let data = match words.next().map(|s| hex_utils::to_vec(s)) {
422 Some(Some(data)) => data,
424 println!("Need a hex data string");
428 let destination_pk = node_pks.pop().unwrap();
429 match onion_messenger.send_onion_message(
431 Destination::Node(destination_pk),
432 OnionMessageContents::Custom(UserOnionMessageContents { tlv_type, data }),
435 Ok(()) => println!("SUCCESS: forwarded onion message to first hop"),
436 Err(e) => println!("ERROR: failed to send onion message: {:?}", e),
439 "quit" | "exit" => break,
440 _ => println!("Unknown command. See `\"help\" for available commands."),
447 let package_version = env!("CARGO_PKG_VERSION");
448 let package_name = env!("CARGO_PKG_NAME");
449 println!("\nVERSION:");
450 println!(" {} v{}", package_name, package_version);
451 println!("\nUSAGE:");
452 println!(" Command [arguments]");
453 println!("\nCOMMANDS:");
454 println!(" help\tShows a list of commands.");
455 println!(" quit\tClose the application.");
456 println!("\n Channels:");
457 println!(" openchannel pubkey@host:port <amt_satoshis> [--public]");
458 println!(" closechannel <channel_id> <peer_pubkey>");
459 println!(" forceclosechannel <channel_id> <peer_pubkey>");
460 println!(" listchannels");
461 println!("\n Peers:");
462 println!(" connectpeer pubkey@host:port");
463 println!(" disconnectpeer <peer_pubkey>");
464 println!(" listpeers");
465 println!("\n Payments:");
466 println!(" sendpayment <invoice>");
467 println!(" keysend <dest_pubkey> <amt_msats>");
468 println!(" listpayments");
469 println!("\n Invoices:");
470 println!(" getinvoice <amt_msats> <expiry_secs>");
471 println!("\n Other:");
472 println!(" signmessage <message>");
474 " sendonionmessage <node_id_1,node_id_2,..,destination_node_id> <type> <hex_bytes>"
476 println!(" nodeinfo");
479 fn node_info(channel_manager: &Arc<ChannelManager>, peer_manager: &Arc<PeerManager>) {
481 println!("\t\t node_pubkey: {}", channel_manager.get_our_node_id());
482 let chans = channel_manager.list_channels();
483 println!("\t\t num_channels: {}", chans.len());
484 println!("\t\t num_usable_channels: {}", chans.iter().filter(|c| c.is_usable).count());
485 let local_balance_msat = chans.iter().map(|c| c.balance_msat).sum::<u64>();
486 println!("\t\t local_balance_msat: {}", local_balance_msat);
487 println!("\t\t num_peers: {}", peer_manager.get_peer_node_ids().len());
491 fn list_peers(peer_manager: Arc<PeerManager>) {
493 for (pubkey, _) in peer_manager.get_peer_node_ids() {
494 println!("\t\t pubkey: {}", pubkey);
499 fn list_channels(channel_manager: &Arc<ChannelManager>, network_graph: &Arc<NetworkGraph>) {
501 for chan_info in channel_manager.list_channels() {
504 println!("\t\tchannel_id: {},", hex_utils::hex_str(&chan_info.channel_id[..]));
505 if let Some(funding_txo) = chan_info.funding_txo {
506 println!("\t\tfunding_txid: {},", funding_txo.txid);
510 "\t\tpeer_pubkey: {},",
511 hex_utils::hex_str(&chan_info.counterparty.node_id.serialize())
513 if let Some(node_info) = network_graph
516 .get(&NodeId::from_pubkey(&chan_info.counterparty.node_id))
518 if let Some(announcement) = &node_info.announcement_info {
519 println!("\t\tpeer_alias: {}", announcement.alias);
523 if let Some(id) = chan_info.short_channel_id {
524 println!("\t\tshort_channel_id: {},", id);
526 println!("\t\tis_channel_ready: {},", chan_info.is_channel_ready);
527 println!("\t\tchannel_value_satoshis: {},", chan_info.channel_value_satoshis);
528 println!("\t\tlocal_balance_msat: {},", chan_info.balance_msat);
529 if chan_info.is_usable {
530 println!("\t\tavailable_balance_for_send_msat: {},", chan_info.outbound_capacity_msat);
531 println!("\t\tavailable_balance_for_recv_msat: {},", chan_info.inbound_capacity_msat);
533 println!("\t\tchannel_can_send_payments: {},", chan_info.is_usable);
534 println!("\t\tpublic: {},", chan_info.is_public);
540 fn list_payments(inbound_payments: &PaymentInfoStorage, outbound_payments: &PaymentInfoStorage) {
542 for (payment_hash, payment_info) in &inbound_payments.payments {
545 println!("\t\tamount_millisatoshis: {},", payment_info.amt_msat);
546 println!("\t\tpayment_hash: {},", hex_utils::hex_str(&payment_hash.0));
547 println!("\t\thtlc_direction: inbound,");
549 "\t\thtlc_status: {},",
550 match payment_info.status {
551 HTLCStatus::Pending => "pending",
552 HTLCStatus::Succeeded => "succeeded",
553 HTLCStatus::Failed => "failed",
560 for (payment_hash, payment_info) in &outbound_payments.payments {
563 println!("\t\tamount_millisatoshis: {},", payment_info.amt_msat);
564 println!("\t\tpayment_hash: {},", hex_utils::hex_str(&payment_hash.0));
565 println!("\t\thtlc_direction: outbound,");
567 "\t\thtlc_status: {},",
568 match payment_info.status {
569 HTLCStatus::Pending => "pending",
570 HTLCStatus::Succeeded => "succeeded",
571 HTLCStatus::Failed => "failed",
580 pub(crate) async fn connect_peer_if_necessary(
581 pubkey: PublicKey, peer_addr: SocketAddr, peer_manager: Arc<PeerManager>,
582 ) -> Result<(), ()> {
583 for (node_pubkey, _) in peer_manager.get_peer_node_ids() {
584 if node_pubkey == pubkey {
588 let res = do_connect_peer(pubkey, peer_addr, peer_manager).await;
590 println!("ERROR: failed to connect to peer");
595 pub(crate) async fn do_connect_peer(
596 pubkey: PublicKey, peer_addr: SocketAddr, peer_manager: Arc<PeerManager>,
597 ) -> Result<(), ()> {
598 match lightning_net_tokio::connect_outbound(Arc::clone(&peer_manager), pubkey, peer_addr).await
600 Some(connection_closed_future) => {
601 let mut connection_closed_future = Box::pin(connection_closed_future);
604 _ = &mut connection_closed_future => return Err(()),
605 _ = tokio::time::sleep(Duration::from_millis(10)) => {},
607 if peer_manager.get_peer_node_ids().iter().find(|(id, _)| *id == pubkey).is_some() {
616 fn do_disconnect_peer(
617 pubkey: bitcoin::secp256k1::PublicKey, peer_manager: Arc<PeerManager>,
618 channel_manager: Arc<ChannelManager>,
619 ) -> Result<(), ()> {
620 //check for open channels with peer
621 for channel in channel_manager.list_channels() {
622 if channel.counterparty.node_id == pubkey {
623 println!("Error: Node has an active channel with this peer, close any channels first");
628 //check the pubkey matches a valid connected peer
629 let peers = peer_manager.get_peer_node_ids();
630 if !peers.iter().any(|(pk, _)| &pubkey == pk) {
631 println!("Error: Could not find peer {}", pubkey);
635 peer_manager.disconnect_by_node_id(pubkey);
640 peer_pubkey: PublicKey, channel_amt_sat: u64, announced_channel: bool,
641 channel_manager: Arc<ChannelManager>,
642 ) -> Result<(), ()> {
643 let config = UserConfig {
644 channel_handshake_limits: ChannelHandshakeLimits {
645 // lnd's max to_self_delay is 2016, so we want to be compatible.
646 their_to_self_delay: 2016,
649 channel_handshake_config: ChannelHandshakeConfig {
656 match channel_manager.create_channel(peer_pubkey, channel_amt_sat, 0, 0, Some(config)) {
658 println!("EVENT: initiated channel with peer {}. ", peer_pubkey);
662 println!("ERROR: failed to open channel: {:?}", e);
669 channel_manager: &ChannelManager, invoice: &Invoice,
670 outbound_payments: &mut PaymentInfoStorage, persister: Arc<FilesystemPersister>,
672 let payment_hash = PaymentHash((*invoice.payment_hash()).into_inner());
673 let payment_secret = Some(*invoice.payment_secret());
674 outbound_payments.payments.insert(
678 secret: payment_secret,
679 status: HTLCStatus::Pending,
680 amt_msat: MillisatAmount(invoice.amount_milli_satoshis()),
683 persister.persist(OUTBOUND_PAYMENTS_FNAME, &*outbound_payments).unwrap();
684 match pay_invoice(invoice, Retry::Timeout(Duration::from_secs(10)), channel_manager) {
686 let payee_pubkey = invoice.recover_payee_pub_key();
687 let amt_msat = invoice.amount_milli_satoshis().unwrap();
688 println!("EVENT: initiated sending {} msats to {}", amt_msat, payee_pubkey);
692 println!("ERROR: failed to send payment: {:?}", e);
694 outbound_payments.payments.get_mut(&payment_hash).unwrap().status = HTLCStatus::Failed;
695 persister.persist(OUTBOUND_PAYMENTS_FNAME, &*outbound_payments).unwrap();
700 fn keysend<E: EntropySource>(
701 channel_manager: &ChannelManager, payee_pubkey: PublicKey, amt_msat: u64, entropy_source: &E,
702 outbound_payments: &mut PaymentInfoStorage, persister: Arc<FilesystemPersister>,
704 let payment_preimage = PaymentPreimage(entropy_source.get_secure_random_bytes());
705 let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner());
707 let route_params = RouteParameters {
708 payment_params: PaymentParameters::for_keysend(payee_pubkey, 40),
709 final_value_msat: amt_msat,
711 outbound_payments.payments.insert(
716 status: HTLCStatus::Pending,
717 amt_msat: MillisatAmount(Some(amt_msat)),
720 persister.persist(OUTBOUND_PAYMENTS_FNAME, &*outbound_payments).unwrap();
721 match channel_manager.send_spontaneous_payment_with_retry(
722 Some(payment_preimage),
723 RecipientOnionFields::spontaneous_empty(),
724 PaymentId(payment_hash.0),
726 Retry::Timeout(Duration::from_secs(10)),
728 Ok(_payment_hash) => {
729 println!("EVENT: initiated sending {} msats to {}", amt_msat, payee_pubkey);
733 println!("ERROR: failed to send payment: {:?}", e);
735 outbound_payments.payments.get_mut(&payment_hash).unwrap().status = HTLCStatus::Failed;
736 persister.persist(OUTBOUND_PAYMENTS_FNAME, &*outbound_payments).unwrap();
742 amt_msat: u64, inbound_payments: &mut PaymentInfoStorage, channel_manager: &ChannelManager,
743 keys_manager: Arc<KeysManager>, network: Network, expiry_secs: u32,
744 logger: Arc<disk::FilesystemLogger>,
746 let currency = match network {
747 Network::Bitcoin => Currency::Bitcoin,
748 Network::Testnet => Currency::BitcoinTestnet,
749 Network::Regtest => Currency::Regtest,
750 Network::Signet => Currency::Signet,
752 let invoice = match utils::create_invoice_from_channelmanager(
758 "ldk-tutorial-node".to_string(),
763 println!("SUCCESS: generated invoice: {}", inv);
767 println!("ERROR: failed to create invoice: {:?}", e);
772 let payment_hash = PaymentHash(invoice.payment_hash().clone().into_inner());
773 inbound_payments.payments.insert(
777 secret: Some(invoice.payment_secret().clone()),
778 status: HTLCStatus::Pending,
779 amt_msat: MillisatAmount(Some(amt_msat)),
785 channel_id: [u8; 32], counterparty_node_id: PublicKey, channel_manager: Arc<ChannelManager>,
787 match channel_manager.close_channel(&channel_id, &counterparty_node_id) {
788 Ok(()) => println!("EVENT: initiating channel close"),
789 Err(e) => println!("ERROR: failed to close channel: {:?}", e),
793 fn force_close_channel(
794 channel_id: [u8; 32], counterparty_node_id: PublicKey, channel_manager: Arc<ChannelManager>,
796 match channel_manager.force_close_broadcasting_latest_txn(&channel_id, &counterparty_node_id) {
797 Ok(()) => println!("EVENT: initiating channel force-close"),
798 Err(e) => println!("ERROR: failed to force-close channel: {:?}", e),
802 pub(crate) fn parse_peer_info(
803 peer_pubkey_and_ip_addr: String,
804 ) -> Result<(PublicKey, SocketAddr), std::io::Error> {
805 let mut pubkey_and_addr = peer_pubkey_and_ip_addr.split("@");
806 let pubkey = pubkey_and_addr.next();
807 let peer_addr_str = pubkey_and_addr.next();
808 if peer_addr_str.is_none() {
809 return Err(std::io::Error::new(
810 std::io::ErrorKind::Other,
811 "ERROR: incorrectly formatted peer info. Should be formatted as: `pubkey@host:port`",
815 let peer_addr = peer_addr_str.unwrap().to_socket_addrs().map(|mut r| r.next());
816 if peer_addr.is_err() || peer_addr.as_ref().unwrap().is_none() {
817 return Err(std::io::Error::new(
818 std::io::ErrorKind::Other,
819 "ERROR: couldn't parse pubkey@host:port into a socket address",
823 let pubkey = hex_utils::to_compressed_pubkey(pubkey.unwrap());
824 if pubkey.is_none() {
825 return Err(std::io::Error::new(
826 std::io::ErrorKind::Other,
827 "ERROR: unable to parse given pubkey for node",
831 Ok((pubkey.unwrap(), peer_addr.unwrap().unwrap()))