use bitcoin::network::constants::Network;
use bitcoin::secp256k1::PublicKey;
use lightning::chain::keysinterface::{KeysInterface, KeysManager, Recipient};
-use lightning::ln::msgs::NetAddress;
+use lightning::ln::msgs::{DecodeError, NetAddress};
use lightning::ln::{PaymentHash, PaymentPreimage};
-use lightning::onion_message::Destination;
+use lightning::onion_message::{CustomOnionMessageContents, Destination, OnionMessageContents};
use lightning::routing::gossip::NodeId;
use lightning::util::config::{ChannelHandshakeConfig, ChannelHandshakeLimits, UserConfig};
use lightning::util::events::EventHandler;
+use lightning::util::ser::{MaybeReadableArgs, Writeable, Writer};
use lightning_invoice::payment::PaymentError;
use lightning_invoice::{utils, Currency, Invoice};
use std::env;
use std::io;
use std::io::Write;
-use std::net::{IpAddr, SocketAddr, ToSocketAddrs};
+use std::net::{SocketAddr, ToSocketAddrs};
use std::ops::Deref;
use std::path::Path;
use std::str::FromStr;
pub(crate) network: Network,
}
-pub(crate) fn parse_startup_args() -> Result<LdkUserInfo, ()> {
- if env::args().len() < 3 {
- println!("ldk-tutorial-node requires 3 arguments: `cargo run <bitcoind-rpc-username>:<bitcoind-rpc-password>@<bitcoind-rpc-host>:<bitcoind-rpc-port> ldk_storage_directory_path [<ldk-incoming-peer-listening-port>] [bitcoin-network] [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.rsplitn(2, "@").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[1].split(":").collect();
- if rpc_user_and_password.len() != 2 {
- println!("ERROR: bad bitcoind RPC username/password combo provided");
- return Err(());
+struct UserOnionMessageContents {
+ tlv_type: u64,
+ data: Vec<u8>,
+}
+
+impl CustomOnionMessageContents for UserOnionMessageContents {
+ fn tlv_type(&self) -> u64 {
+ self.tlv_type
}
- 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[0].split(":").collect();
- if bitcoind_rpc_path.len() != 2 {
- println!("ERROR: bad bitcoind RPC path provided");
- return Err(());
+}
+impl MaybeReadableArgs<u64> for UserOnionMessageContents {
+ fn read<R: std::io::Read>(_r: &mut R, _args: u64) -> Result<Option<Self>, DecodeError> {
+ // UserOnionMessageContents is only ever passed to `send_onion_message`, never to an
+ // `OnionMessageHandler`, thus it does not need to implement the read side here.
+ unreachable!();
}
- let bitcoind_rpc_host = bitcoind_rpc_path[0].to_string();
- let bitcoind_rpc_port = bitcoind_rpc_path[1].parse::<u16>().unwrap();
-
- let ldk_storage_dir_path = env::args().skip(2).next().unwrap();
-
- let mut ldk_peer_port_set = true;
- let ldk_peer_listening_port: u16 = match env::args().skip(3).next().map(|p| p.parse()) {
- Some(Ok(p)) => p,
- Some(Err(_)) => {
- 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("signet") => Network::Signet,
- Some(net) => {
- panic!("Unsupported network provided. Options are: `regtest`, `testnet`, and `signet`. 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,
- }
+}
+impl Writeable for UserOnionMessageContents {
+ fn write<W: Writer>(&self, w: &mut W) -> Result<(), std::io::Error> {
+ w.write_all(&self.data)
}
-
- 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<E: EventHandler>(
channel_manager: Arc<ChannelManager>, keys_manager: Arc<KeysManager>,
network_graph: Arc<NetworkGraph>, onion_messenger: Arc<OnionMessenger>,
inbound_payments: PaymentInfoStorage, outbound_payments: PaymentInfoStorage,
- ldk_data_dir: String, network: Network,
+ ldk_data_dir: String, network: Network, logger: Arc<disk::FilesystemLogger>,
) {
- println!("LDK startup successful. To view available commands: \"help\".");
+ println!(
+ "LDK startup successful. Enter \"help\" to view available commands. Press Ctrl-D to quit."
+ );
println!("LDK logs are available at <your-supplied-ldk-data-dir-path>/.ldk/logs");
println!("Local Node ID is {}.", channel_manager.get_our_node_id());
loop {
io::stdout().flush().unwrap(); // Without flushing, the `>` doesn't print
let mut line = String::new();
if let Err(e) = io::stdin().read_line(&mut line) {
- break println!("ERROR: {e:#}");
+ break println!("ERROR: {}", e);
+ }
+
+ if line.len() == 0 {
+ // We hit EOF / Ctrl-D
+ break;
}
let mut words = line.split_whitespace();
get_invoice(
amt_msat.unwrap(),
- inbound_payments.clone(),
- channel_manager.clone(),
- keys_manager.clone(),
+ Arc::clone(&inbound_payments),
+ &*channel_manager,
+ Arc::clone(&keys_manager),
network,
expiry_secs.unwrap(),
+ Arc::clone(&logger),
);
}
"connectpeer" => {
println!("SUCCESS: connected to peer {}", pubkey);
}
}
+ "disconnectpeer" => {
+ let peer_pubkey = words.next();
+ if peer_pubkey.is_none() {
+ println!("ERROR: disconnectpeer requires peer public key: `disconnectpeer <peer_pubkey>`");
+ continue;
+ }
+
+ let peer_pubkey =
+ match bitcoin::secp256k1::PublicKey::from_str(peer_pubkey.unwrap()) {
+ Ok(pubkey) => pubkey,
+ Err(e) => {
+ println!("ERROR: {}", e.to_string());
+ continue;
+ }
+ };
+
+ if do_disconnect_peer(
+ peer_pubkey,
+ peer_manager.clone(),
+ channel_manager.clone(),
+ )
+ .is_ok()
+ {
+ println!("SUCCESS: disconnected from peer {}", peer_pubkey);
+ }
+ }
"listchannels" => list_channels(&channel_manager, &network_graph),
"listpayments" => {
list_payments(inbound_payments.clone(), outbound_payments.clone())
if errored {
continue;
}
+ let tlv_type = match words.next().map(|ty_str| ty_str.parse()) {
+ Some(Ok(ty)) if ty >= 64 => ty,
+ _ => {
+ println!("Need an integral message type above 64");
+ continue;
+ }
+ };
+ let data = match words.next().map(|s| hex_utils::to_vec(s)) {
+ Some(Some(data)) => data,
+ _ => {
+ println!("Need a hex data string");
+ continue;
+ }
+ };
let destination_pk = node_pks.pop().unwrap();
match onion_messenger.send_onion_message(
&node_pks,
Destination::Node(destination_pk),
+ OnionMessageContents::Custom(UserOnionMessageContents { tlv_type, data }),
None,
) {
Ok(()) => println!("SUCCESS: forwarded onion message to first hop"),
Err(e) => println!("ERROR: failed to send onion message: {:?}", e),
}
}
+ "quit" | "exit" => break,
_ => println!("Unknown command. See `\"help\" for available commands."),
}
}
}
fn help() {
- println!("openchannel pubkey@host:port <amt_satoshis> [--public]");
- println!("sendpayment <invoice>");
- println!("keysend <dest_pubkey> <amt_msats>");
- println!("getinvoice <amt_msats> <expiry_secs>");
- println!("connectpeer pubkey@host:port");
- println!("listchannels");
- println!("listpayments");
- println!("closechannel <channel_id> <peer_pubkey>");
- println!("forceclosechannel <channel_id> <peer_pubkey>");
- println!("nodeinfo");
- println!("listpeers");
- println!("signmessage <message>");
- println!("sendonionmessage <node_id_1,node_id_2,..,destination_node_id>");
+ let package_version = env!("CARGO_PKG_VERSION");
+ let package_name = env!("CARGO_PKG_NAME");
+ println!("\nVERSION:");
+ println!(" {} v{}", package_name, package_version);
+ println!("\nUSAGE:");
+ println!(" Command [arguments]");
+ println!("\nCOMMANDS:");
+ println!(" help\tShows a list of commands.");
+ println!(" quit\tClose the application.");
+ println!("\n Channels:");
+ println!(" openchannel pubkey@host:port <amt_satoshis> [--public]");
+ println!(" closechannel <channel_id> <peer_pubkey>");
+ println!(" forceclosechannel <channel_id> <peer_pubkey>");
+ println!(" listchannels");
+ println!("\n Peers:");
+ println!(" connectpeer pubkey@host:port");
+ println!(" disconnectpeer <peer_pubkey>");
+ println!(" listpeers");
+ println!("\n Payments:");
+ println!(" sendpayment <invoice>");
+ println!(" keysend <dest_pubkey> <amt_msats>");
+ println!(" listpayments");
+ println!("\n Invoices:");
+ println!(" getinvoice <amt_msats> <expiry_secs>");
+ println!("\n Other:");
+ println!(" signmessage <message>");
+ println!(
+ " sendonionmessage <node_id_1,node_id_2,..,destination_node_id> <type> <hex_bytes>"
+ );
+ println!(" nodeinfo");
}
fn node_info(channel_manager: &Arc<ChannelManager>, peer_manager: &Arc<PeerManager>) {
}
}
+fn do_disconnect_peer(
+ pubkey: bitcoin::secp256k1::PublicKey, peer_manager: Arc<PeerManager>,
+ channel_manager: Arc<ChannelManager>,
+) -> Result<(), ()> {
+ //check for open channels with peer
+ for channel in channel_manager.list_channels() {
+ if channel.counterparty.node_id == pubkey {
+ println!("Error: Node has an active channel with this peer, close any channels first");
+ return Err(());
+ }
+ }
+
+ //check the pubkey matches a valid connected peer
+ let peers = peer_manager.get_peer_node_ids();
+ if !peers.contains(&pubkey) {
+ println!("Error: Could not find peer {}", pubkey);
+ return Err(());
+ }
+
+ peer_manager.disconnect_by_node_id(pubkey, false);
+ Ok(())
+}
+
fn open_channel(
peer_pubkey: PublicKey, channel_amt_sat: u64, announced_channel: bool,
channel_manager: Arc<ChannelManager>,
}
fn get_invoice(
- amt_msat: u64, payment_storage: PaymentInfoStorage, channel_manager: Arc<ChannelManager>,
+ amt_msat: u64, payment_storage: PaymentInfoStorage, channel_manager: &ChannelManager,
keys_manager: Arc<KeysManager>, network: Network, expiry_secs: u32,
+ logger: Arc<disk::FilesystemLogger>,
) {
let mut payments = payment_storage.lock().unwrap();
let currency = match network {
Network::Signet => Currency::Signet,
};
let invoice = match utils::create_invoice_from_channelmanager(
- &channel_manager,
+ channel_manager,
keys_manager,
+ logger,
currency,
Some(amt_msat),
"ldk-tutorial-node".to_string(),
projects / ldk-sample / blobdiff