X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=src%2Fcli.rs;h=9bc2ef1584d80acaea947d42c9223c63cc1f09a7;hb=68a95c0646810ed7afe5022ac211c1f214d950c5;hp=c046d0cf6fe4771d0e7427b3c25c236a6ee112e5;hpb=1b034d63a4cb4e0b249ae6240166513b6be76737;p=ldk-sample diff --git a/src/cli.rs b/src/cli.rs index c046d0c..9bc2ef1 100644 --- a/src/cli.rs +++ b/src/cli.rs @@ -1,100 +1,785 @@ +use crate::disk; +use crate::hex_utils; +use crate::{ + ChannelManager, FilesystemLogger, HTLCStatus, MillisatAmount, PaymentInfo, PaymentInfoStorage, + PeerManager, +}; +use bitcoin::hashes::Hash; +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::{KeysInterface, KeysManager}; +use lightning::ln::features::InvoiceFeatures; +use lightning::ln::msgs::NetAddress; +use lightning::ln::{PaymentHash, PaymentSecret}; +use lightning::routing::network_graph::NetGraphMsgHandler; +use lightning::routing::router; +use lightning::routing::router::RouteHint; +use lightning::routing::scorer::Scorer; +use lightning::util::config::{ChannelConfig, ChannelHandshakeLimits, 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::{IpAddr, 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, channel_manager: Arc, 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 = peer_addr_str.parse(); - let chan_amt: Result = 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(); - - } -} - -fn handle_help() { - println!("") -} - -fn handle_open_channel(peer_pubkey: PublicKey, peer_socket: SocketAddr, - channel_amt_sat: u64, peer_manager: Arc, - channel_manager: Arc, 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) - } + +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) ldk_announced_listen_addr: Vec, + pub(crate) ldk_announced_node_name: [u8; 32], + pub(crate) network: Network, +} + +pub(crate) fn parse_startup_args() -> Result { + if env::args().len() < 3 { + println!("ldk-tutorial-node requires 3 arguments: `cargo run :@: ldk_storage_directory_path [] [bitcoin-network] [announced-node-name announced-listen-addr*]`"); + 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::().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(_)) => { + ldk_peer_port_set = false; + 9735 + } + None => { + ldk_peer_port_set = false; + 9735 + } + }; + + let mut 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(net) => { + panic!("Unsupported network provided. Options are: `regtest`, `testnet`. Got {}", net); + } + None => Network::Testnet, + }; + + let ldk_announced_node_name = match env::args().skip(arg_idx + 1).next().as_ref() { + Some(s) => { + if s.len() > 32 { + panic!("Node Alias can not be longer than 32 bytes"); + } + arg_idx += 1; + let mut bytes = [0; 32]; + bytes[..s.len()].copy_from_slice(s.as_bytes()); + bytes + } + None => [0; 32], + }; + + let mut ldk_announced_listen_addr = Vec::new(); + loop { + match env::args().skip(arg_idx + 1).next().as_ref() { + Some(s) => match IpAddr::from_str(s) { + Ok(IpAddr::V4(a)) => { + ldk_announced_listen_addr + .push(NetAddress::IPv4 { addr: a.octets(), port: ldk_peer_listening_port }); + arg_idx += 1; + } + Ok(IpAddr::V6(a)) => { + ldk_announced_listen_addr + .push(NetAddress::IPv6 { addr: a.octets(), port: ldk_peer_listening_port }); + arg_idx += 1; + } + Err(_) => panic!("Failed to parse announced-listen-addr into an IP address"), + }, + None => break, + } + } + + Ok(LdkUserInfo { + bitcoind_rpc_username, + bitcoind_rpc_password, + bitcoind_rpc_host, + bitcoind_rpc_port, + ldk_storage_dir_path, + ldk_peer_listening_port, + ldk_announced_listen_addr, + ldk_announced_node_name, + network, + }) +} + +pub(crate) async fn poll_for_user_input( + peer_manager: Arc, channel_manager: Arc, + keys_manager: Arc, + router: Arc, Arc>>, + inbound_payments: PaymentInfoStorage, outbound_payments: PaymentInfoStorage, + ldk_data_dir: String, logger: Arc, network: Network, +) { + println!("LDK startup successful. To view available commands: \"help\"."); + println!("LDK logs are available at /.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 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 = 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()) + .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 `"); + 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 last_hops = invoice.route_hints(); + + 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 payment_hash = PaymentHash(invoice.payment_hash().clone().into_inner()); + let payment_secret = Some(invoice.payment_secret().clone()); + let invoice_features = invoice.features().cloned(); + + 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(), + ); + } + "keysend" => { + let dest_pubkey = match words.next() { + Some(dest) => match hex_utils::to_compressed_pubkey(dest) { + Some(pk) => pk, + None => { + println!("ERROR: couldn't parse destination pubkey"); + print!("> "); + io::stdout().flush().unwrap(); + continue; + } + }, + None => { + println!("ERROR: keysend requires a destination pubkey: `keysend `"); + print!("> "); + io::stdout().flush().unwrap(); + continue; + } + }; + let amt_msat_str = match words.next() { + Some(amt) => amt, + None => { + println!("ERROR: keysend requires an amount in millisatoshis: `keysend `"); + + print!("> "); + io::stdout().flush().unwrap(); + continue; + } + }; + let amt_msat: u64 = match amt_msat_str.parse() { + Ok(amt) => amt, + Err(e) => { + println!("ERROR: couldn't parse amount_msat: {}", e); + print!("> "); + io::stdout().flush().unwrap(); + continue; + } + }; + keysend( + dest_pubkey, + amt_msat, + 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 = 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()) + .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 `"); + 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 `"); + 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()), + "signmessage" => { + const MSG_STARTPOS: usize = "signmsg".len() + 1; + if line.as_bytes().len() <= MSG_STARTPOS { + println!("ERROR: signmsg requires a message"); + print!("> "); + io::stdout().flush().unwrap(); + continue; + } + println!( + "{:?}", + lightning::util::message_signing::sign( + &line.as_bytes()[MSG_STARTPOS..], + &keys_manager.get_node_secret() + ) + ); + print!("> "); + io::stdout().flush().unwrap(); + } + _ => println!("Unknown command. See `\"help\" for available commands."), + } + } + print!("> "); + io::stdout().flush().unwrap(); + } +} + +fn help() { + println!("openchannel pubkey@host:port "); + println!("sendpayment "); + println!("getinvoice "); + println!("connectpeer pubkey@host:port"); + println!("listchannels"); + println!("listpayments"); + println!("closechannel "); + println!("forceclosechannel "); + println!("nodeinfo"); + println!("listpeers"); + println!("signmessage "); +} + +fn node_info(channel_manager: Arc, peer_manager: Arc) { + 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 list_peers(peer_manager: Arc) { + println!("\t{{"); + for pubkey in peer_manager.get_peer_node_ids() { + println!("\t\t pubkey: {}", pubkey); + } + println!("\t}},"); +} + +fn list_channels(channel_manager: Arc) { + print!("["); + for chan_info in channel_manager.list_channels() { + println!(""); + println!("\t{{"); + println!("\t\tchannel_id: {},", hex_utils::hex_str(&chan_info.channel_id[..])); + if let Some(funding_txo) = chan_info.funding_txo { + println!("\t\tfunding_txid: {},", funding_txo.txid); + } + println!( + "\t\tpeer_pubkey: {},", + hex_utils::hex_str(&chan_info.counterparty.node_id.serialize()) + ); + if let Some(id) = chan_info.short_channel_id { + println!("\t\tshort_channel_id: {},", id); + } + println!("\t\tis_confirmed_onchain: {},", chan_info.is_funding_locked); + println!("\t\tchannel_value_satoshis: {},", chan_info.channel_value_satoshis); + println!( + "\t\tlocal_balance_msat: {},", + chan_info.outbound_capacity_msat + + chan_info.unspendable_punishment_reserve.unwrap_or(0) * 1000 + ); + if chan_info.is_usable { + println!("\t\tavailable_balance_for_send_msat: {},", chan_info.outbound_capacity_msat); + println!("\t\tavailable_balance_for_recv_msat: {},", chan_info.inbound_capacity_msat); + } + println!("\t\tchannel_can_send_payments: {},", chan_info.is_usable); + println!("\t\tpublic: {},", chan_info.is_public); + 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, +) -> 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), pubkey, peer_addr).await + { + Some(connection_closed_future) => { + let mut connection_closed_future = Box::pin(connection_closed_future); + loop { + match futures::poll!(&mut connection_closed_future) { + std::task::Poll::Ready(_) => { + println!("ERROR: Peer disconnected before we finished the handshake"); + return Err(()); + } + std::task::Poll::Pending => {} + } + // Avoid blocking the tokio context by sleeping a bit + match peer_manager.get_peer_node_ids().iter().find(|id| **id == pubkey) { + Some(_) => break, + None => 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, announced_channel: bool, + channel_manager: Arc, +) -> Result<(), ()> { + let config = UserConfig { + peer_channel_config_limits: ChannelHandshakeLimits { + // lnd's max to_self_delay is 2016, so we want to be compatible. + their_to_self_delay: 2016, + ..Default::default() + }, + channel_options: ChannelConfig { announced_channel, ..Default::default() }, + ..Default::default() + }; + + match channel_manager.create_channel(peer_pubkey, channel_amt_sat, 0, 0, Some(config)) { + 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, payee_features: Option, + route_hints: Vec<&RouteHint>, + router: Arc, Arc>>, + channel_manager: Arc, payment_storage: PaymentInfoStorage, + logger: Arc, +) { + let network_graph = &router.network_graph; + 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::>()), + &route_hints, + amt_msat, + final_cltv, + logger, + &Scorer::default(), + ); + 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(_payment_id) => { + 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 keysend( + payee: PublicKey, amt_msat: u64, + router: Arc, Arc>>, + channel_manager: Arc, payment_storage: PaymentInfoStorage, + logger: Arc, +) { + let network_graph = &router.network_graph; + let first_hops = channel_manager.list_usable_channels(); + let payer_pubkey = channel_manager.get_our_node_id(); + + let route = match router::get_keysend_route( + &payer_pubkey, + &network_graph, + &payee, + Some(&first_hops.iter().collect::>()), + &vec![], + amt_msat, + 40, + logger, + &Scorer::default(), + ) { + Ok(r) => r, + Err(e) => { + println!("ERROR: failed to find route: {}", e.err); + return; + } + }; + + let mut payments = payment_storage.lock().unwrap(); + let payment_hash = channel_manager.send_spontaneous_payment(&route, None).unwrap().0; + payments.insert( + payment_hash, + PaymentInfo { + preimage: None, + secret: None, + status: HTLCStatus::Pending, + amt_msat: MillisatAmount(Some(amt_msat)), + }, + ); +} + +fn get_invoice( + amt_msat: u64, payment_storage: PaymentInfoStorage, channel_manager: Arc, + keys_manager: Arc, 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 payment_hash = PaymentHash(invoice.payment_hash().clone().into_inner()); + payments.insert( + payment_hash, + PaymentInfo { + preimage: None, + secret: Some(invoice.payment_secret().clone()), + status: HTLCStatus::Pending, + amt_msat: MillisatAmount(Some(amt_msat)), + }, + ); +} + +fn close_channel(channel_id: [u8; 32], channel_manager: Arc) { + 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) { + 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())) }