-use bitcoin::secp256k1::key::PublicKey;
-use crate::{FilesystemLogger, PeerManager, ChannelManager};
-use crate::utils;
+use bitcoin::network::constants::Network;
+use bitcoin::hashes::Hash;
+use bitcoin::hashes::sha256::Hash as Sha256Hash;
+use bitcoin::secp256k1::Secp256k1;
+use bitcoin::secp256k1::key::{PublicKey, SecretKey};
+use crate::{ChannelManager, FilesystemLogger, HTLCDirection, HTLCStatus, NETWORK,
+ PaymentInfoStorage, PeerManager};
+use crate::disk;
+use crate::hex_utils;
+use lightning::chain;
+use lightning::ln::channelmanager::{PaymentHash, PaymentPreimage, PaymentSecret};
+use lightning::ln::features::InvoiceFeatures;
+use lightning::routing::network_graph::NetGraphMsgHandler;
+use lightning::routing::router;
+use lightning::util::config::UserConfig;
+use rand;
+use rand::Rng;
+use std::env;
use std::io;
use std::io::{BufRead, Write};
use std::net::{SocketAddr, TcpStream};
+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::runtime::Handle;
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
+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) fn parse_startup_args() -> Result<LdkUserInfo, ()> {
+ if env::args().len() < 4 {
+ 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 [optional: <ldk-incoming-peer-listening-port>]`");
+ 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 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 => 9735,
+ };
+ Ok(LdkUserInfo {
+ bitcoind_rpc_username,
+ bitcoind_rpc_password,
+ bitcoind_rpc_host,
+ bitcoind_rpc_port,
+ ldk_storage_dir_path,
+ ldk_peer_listening_port,
+ })
+}
+
+pub(crate) fn poll_for_user_input(peer_manager: Arc<PeerManager>, channel_manager:
+ Arc<ChannelManager>, router: Arc<NetGraphMsgHandler<Arc<dyn
+ chain::Access>, Arc<FilesystemLogger>>>, payment_storage:
+ PaymentInfoStorage, node_privkey: SecretKey, event_notifier:
+ mpsc::Sender<()>, ldk_data_dir: String, logger: Arc<FilesystemLogger>,
+ runtime_handle: Handle) {
+ println!("LDK startup successful. To view available commands: \"help\".\nLDK logs are available in the `logs` folder of <your-supplied-ldk-data-dir-path>/.ldk/logs");
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" => handle_help(),
+ "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 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");
+ println!("ERROR: openchannel takes 2 arguments: `openchannel pubkey@host:port channel_amt_satoshis`");
+ 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(),
+ runtime_handle.clone()).is_err() {
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ };
+
+ if open_channel(pubkey, chan_amt_sat.unwrap(), 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_res = lightning_invoice::Invoice::from_str(invoice_str.unwrap());
+ if invoice_res.is_err() {
+ println!("ERROR: invalid invoice: {:?}", invoice_res.unwrap_err());
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+ let invoice = invoice_res.unwrap();
+
+ 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().unwrap_or(&9) 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 mut invoice_features = InvoiceFeatures::empty();
+ for field in &invoice.into_signed_raw().raw_invoice().data.tagged_fields {
+ match field {
+ lightning_invoice::RawTaggedField::UnknownSemantics(vec) => {
+ if vec[0] == bech32::u5::try_from_u8(5).unwrap() {
+ if vec.len() >= 6 && vec[5].to_u8() & 0b10000 != 0 {
+ invoice_features.set_supports_var_onion_optin();
+ }
+ if vec.len() >= 6 && vec[5].to_u8() & 0b01000 != 0 {
+ invoice_features.set_requires_var_onion_optin();
+ }
+ if vec.len() >= 4 && vec[3].to_u8() & 0b00001 != 0 {
+ invoice_features.set_supports_payment_secret();
+ }
+ if vec.len() >= 5 && vec[4].to_u8() & 0b10000 != 0 {
+ invoice_features.set_requires_payment_secret();
+ }
+ if vec.len() >= 4 && vec[3].to_u8() & 0b00100 != 0 {
+ invoice_features.set_supports_basic_mpp();
+ }
+ if vec.len() >= 4 && vec[3].to_u8() & 0b00010 != 0 {
+ invoice_features.set_requires_basic_mpp();
}
- } else {
- println!("ERROR: couldn't parse
- pubkey@host:port into a socket address");
}
- } else {
- println!("ERROR: unable to parse given pubkey for node");
- }
+ },
+ _ => {}
}
}
+ let invoice_features_opt = match invoice_features == InvoiceFeatures::empty() {
+ true => None,
+ false => Some(invoice_features)
+ };
+ send_payment(payee_pubkey, amt_msat, final_cltv, payment_hash,
+ payment_secret, invoice_features_opt, router.clone(),
+ channel_manager.clone(), payment_storage.clone(),
+ logger.clone());
},
- _ => println!("hello")
+ "getinvoice" => {
+ let amt_str = words.next();
+ if amt_str.is_none() {
+ println!("ERROR: getinvoice requires an amount in satoshis");
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+
+ let amt_sat: Result<u64, _> = amt_str.unwrap().parse();
+ if amt_sat.is_err() {
+ println!("ERROR: getinvoice provided payment amount was not a number");
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+ get_invoice(amt_sat.unwrap(), payment_storage.clone(), node_privkey.clone(),
+ channel_manager.clone(), router.clone());
+ },
+ "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(), runtime_handle.clone()).is_ok() {
+ println!("SUCCESS: connected to peer {}", pubkey);
+ }
+
+ },
+ "listchannels" => list_channels(channel_manager.clone()),
+ "listpayments" => list_payments(payment_storage.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());
+ }
+ _ => println!("Unknown command. See `\"help\" for available commands.")
}
}
print!("> "); io::stdout().flush().unwrap();
}
}
-fn handle_help() {
- println!("")
+fn help() {
+ println!("openchannel pubkey@host:port channel_amt_satoshis");
+ println!("sendpayment <invoice>");
+ println!("getinvoice <amt_in_satoshis>");
+ println!("connectpeer pubkey@host:port");
+ println!("listchannels");
+ println!("listpayments");
+ println!("closechannel <channel_id>");
+ println!("forceclosechannel <channel_id>");
}
-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)) {
+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_live);
+ println!("\t}},");
+ }
+ println!("]");
+}
+
+fn list_payments(payment_storage: PaymentInfoStorage) {
+ let payments = payment_storage.lock().unwrap();
+ print!("[");
+ for (payment_hash, payment_info) in payments.deref() {
+ println!("");
+ println!("\t{{");
+ println!("\t\tpayment_hash: {},", hex_utils::hex_str(&payment_hash.0));
+ println!("\t\thtlc_direction: {},", if payment_info.1 == HTLCDirection::Inbound { "inbound" } else { "outbound" });
+ println!("\t\thtlc_status: {},", match payment_info.2 {
+ HTLCStatus::Pending => "pending",
+ HTLCStatus::Succeeded => "succeeded",
+ HTLCStatus::Failed => "failed"
+ });
+
+
+ println!("\t}},");
+ }
+ println!("]");
+}
+
+pub(crate) fn connect_peer_if_necessary(pubkey: PublicKey, peer_addr: SocketAddr, peer_manager:
+ Arc<PeerManager>, event_notifier: mpsc::Sender<()>, runtime: Handle) ->
+ Result<(), ()> {
+ for node_pubkey in peer_manager.get_peer_node_ids() {
+ if node_pubkey == pubkey {
+ return Ok(())
+ }
+ }
+ match TcpStream::connect_timeout(&peer_addr, Duration::from_secs(10)) {
Ok(stream) => {
- runtime.block_on(|| {
- lightning_net_tokio::setup_outbound(peer_manager,
- event_notifier,
- peer_pubkey,
- stream);
+ let peer_mgr = peer_manager.clone();
+ let event_ntfns = event_notifier.clone();
+ runtime.spawn(async move {
+ lightning_net_tokio::setup_outbound(peer_mgr, event_ntfns, pubkey, stream).await;
});
- 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)
+ let mut peer_connected = false;
+ while !peer_connected {
+ for node_pubkey in peer_manager.get_peer_node_ids() {
+ if node_pubkey == pubkey { peer_connected = true; }
+ }
}
},
- Err(e) => println!("ERROR: failed to connect to peer: {:?}", e)
+ Err(e) => {println!("ERROR: failed to connect to peer: {:?}", e);
+ return Err(())
+ }
+ }
+ Ok(())
+}
+
+fn open_channel(peer_pubkey: PublicKey, channel_amt_sat: u64, channel_manager: Arc<ChannelManager>)
+ -> Result<(), ()> {
+ let mut config = UserConfig::default();
+ // 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>, router: Arc<NetGraphMsgHandler<Arc<dyn
+ chain::Access>, 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<_>>()), &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, (None, HTLCDirection::Outbound, status));
+}
+
+fn get_invoice(amt_sat: u64, payment_storage: PaymentInfoStorage, our_node_privkey: SecretKey,
+ channel_manager: Arc<ChannelManager>, router: Arc<NetGraphMsgHandler<Arc<dyn
+ chain::Access>, Arc<FilesystemLogger>>>) {
+ let mut payments = payment_storage.lock().unwrap();
+ let secp_ctx = Secp256k1::new();
+
+ let mut preimage = [0; 32];
+ rand::thread_rng().fill_bytes(&mut preimage);
+ let payment_hash = Sha256Hash::hash(&preimage);
+
+
+ let our_node_pubkey = channel_manager.get_our_node_id();
+ let invoice = lightning_invoice::InvoiceBuilder::new(match NETWORK {
+ Network::Bitcoin => lightning_invoice::Currency::Bitcoin,
+ Network::Testnet => lightning_invoice::Currency::BitcoinTestnet,
+ Network::Regtest => lightning_invoice::Currency::Regtest,
+ Network::Signet => panic!("Signet invoices not supported")
+ }).payment_hash(payment_hash).description("rust-lightning-bitcoinrpc invoice".to_string())
+ .amount_pico_btc(amt_sat * 10)
+ .current_timestamp()
+ .payee_pub_key(our_node_pubkey);
+
+ // Add route hints to the invoice.
+ // let our_channels = channel_manager.list_usable_channels();
+ // let network_graph = router.network_graph.read().unwrap();
+ // let network_channels = network_graph.get_channels();
+ // for channel in our_channels {
+ // let short_channel_id_opt = channel.short_channel_id;
+ // if short_channel_id_opt.is_none() {
+ // continue
+ // }
+
+ // let short_channel_id = short_channel_id_opt.unwrap();
+ // let channel_routing_info_opt = network_channels.get(&short_channel_id);
+ // if channel_routing_info_opt.is_none() {
+ // continue
+ // }
+
+ // let channel_routing_info = channel_routing_info_opt.unwrap();
+ // let mut counterparty = channel_routing_info.node_two;
+ // let mut counterparty_chan_fees_opt = channel_routing_info.one_to_two.as_ref();
+ // if channel_routing_info.node_two != our_node_pubkey { // e.g. if our counterparty is node_one
+ // counterparty = channel_routing_info.node_one;
+ // counterparty_chan_fees_opt = channel_routing_info.two_to_one.as_ref();
+ // }
+ // if counterparty_chan_fees_opt.is_none() {
+ // continue
+ // }
+
+ // let counterparty_chan_fees = counterparty_chan_fees_opt.unwrap();
+ // invoice = invoice.route(vec![
+ // lightning_invoice::RouteHop {
+ // short_channel_id: short_channel_id.to_be_bytes(),
+ // cltv_expiry_delta: counterparty_chan_fees.cltv_expiry_delta,
+ // fee_base_msat: counterparty_chan_fees.fees.base_msat,
+ // fee_proportional_millionths: counterparty_chan_fees.fees.proportional_millionths,
+ // pubkey: counterparty,
+ // }
+ // ]);
+ // }
+
+ // Sign the invoice.
+ let invoice = invoice.build_signed(|msg_hash| {
+ secp_ctx.sign_recoverable(msg_hash, &our_node_privkey)
+ });
+
+ match invoice {
+ Ok(invoice) => println!("SUCCESS: generated invoice: {}", invoice),
+ Err(e) => println!("ERROR: failed to create invoice: {:?}", e),
+ }
+
+ payments.insert(PaymentHash(payment_hash.into_inner()), (Some(PaymentPreimage(preimage)),
+ HTLCDirection::Inbound,
+ HTLCStatus::Pending));
+}
+
+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: Result<SocketAddr, _> = peer_addr_str.unwrap().parse();
+ if peer_addr.is_err() {
+ 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()))
}
projects / ldk-sample / blobdiff