use lightning::ln::channelmanager::{PaymentId, RecipientOnionFields, Retry};
use lightning::ln::msgs::SocketAddress;
use lightning::ln::{ChannelId, PaymentHash, PaymentPreimage};
+use lightning::offers::offer::{self, Offer};
use lightning::onion_message::messenger::Destination;
use lightning::onion_message::packet::OnionMessageContents;
use lightning::routing::gossip::NodeId;
use lightning::util::persist::KVStore;
use lightning::util::ser::{Writeable, Writer};
use lightning_invoice::payment::payment_parameters_from_invoice;
+use lightning_invoice::payment::payment_parameters_from_zero_amount_invoice;
use lightning_invoice::{utils, Bolt11Invoice, Currency};
use lightning_persister::fs_store::FilesystemStore;
use std::env;
);
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 {
+ 'read_command: loop {
print!("> ");
io::stdout().flush().unwrap(); // Without flushing, the `>` doesn't print
let mut line = String::new();
continue;
}
- let invoice = match Bolt11Invoice::from_str(invoice_str.unwrap()) {
- Ok(inv) => inv,
- Err(e) => {
- println!("ERROR: invalid invoice: {:?}", e);
+ let mut user_provided_amt: Option<u64> = None;
+ if let Some(amt_msat_str) = words.next() {
+ match amt_msat_str.parse() {
+ Ok(amt) => user_provided_amt = Some(amt),
+ Err(e) => {
+ println!("ERROR: couldn't parse amount_msat: {}", e);
+ continue;
+ }
+ };
+ }
+
+ if let Ok(offer) = Offer::from_str(invoice_str.unwrap()) {
+ let offer_hash = Sha256::hash(invoice_str.unwrap().as_bytes());
+ let payment_id = PaymentId(*offer_hash.as_ref());
+
+ let amt_msat = match (offer.amount(), user_provided_amt) {
+ (Some(offer::Amount::Bitcoin { amount_msats }), _) => *amount_msats,
+ (_, Some(amt)) => amt,
+ (amt, _) => {
+ println!("ERROR: Cannot process non-Bitcoin-denominated offer value {:?}", amt);
+ continue;
+ }
+ };
+ if user_provided_amt.is_some() && user_provided_amt != Some(amt_msat) {
+ println!("Amount didn't match offer of {}msat", amt_msat);
continue;
}
- };
- send_payment(
- &channel_manager,
- &invoice,
- &mut outbound_payments.lock().unwrap(),
- Arc::clone(&fs_store),
- );
+ while user_provided_amt.is_none() {
+ print!("Paying offer for {} msat. Continue (Y/N)? >", amt_msat);
+ io::stdout().flush().unwrap();
+
+ if let Err(e) = io::stdin().read_line(&mut line) {
+ println!("ERROR: {}", e);
+ break 'read_command;
+ }
+
+ if line.len() == 0 {
+ // We hit EOF / Ctrl-D
+ break 'read_command;
+ }
+
+ if line.starts_with("Y") {
+ break;
+ }
+ if line.starts_with("N") {
+ continue 'read_command;
+ }
+ }
+
+ outbound_payments.lock().unwrap().payments.insert(
+ payment_id,
+ PaymentInfo {
+ preimage: None,
+ secret: None,
+ status: HTLCStatus::Pending,
+ amt_msat: MillisatAmount(Some(amt_msat)),
+ },
+ );
+ fs_store
+ .write("", "", OUTBOUND_PAYMENTS_FNAME, &outbound_payments.encode())
+ .unwrap();
+
+ let retry = Retry::Timeout(Duration::from_secs(10));
+ let amt = Some(amt_msat);
+ let pay = channel_manager
+ .pay_for_offer(&offer, None, amt, None, payment_id, retry, None);
+ if pay.is_err() {
+ println!("ERROR: Failed to pay: {:?}", pay);
+ }
+ } else {
+ match Bolt11Invoice::from_str(invoice_str.unwrap()) {
+ Ok(invoice) => send_payment(
+ &channel_manager,
+ &invoice,
+ user_provided_amt,
+ &mut outbound_payments.lock().unwrap(),
+ Arc::clone(&fs_store),
+ ),
+ Err(e) => {
+ println!("ERROR: invalid invoice: {:?}", e);
+ }
+ }
+ }
}
"keysend" => {
let dest_pubkey = match words.next() {
Arc::clone(&fs_store),
);
}
+ "getoffer" => {
+ let offer_builder = channel_manager.create_offer_builder(String::new());
+ if let Err(e) = offer_builder {
+ println!("ERROR: Failed to initiate offer building: {:?}", e);
+ continue;
+ }
+
+ let amt_str = words.next();
+ let offer = if amt_str.is_some() {
+ let amt_msat: Result<u64, _> = amt_str.unwrap().parse();
+ if amt_msat.is_err() {
+ println!("ERROR: getoffer provided payment amount was not a number");
+ continue;
+ }
+ offer_builder.unwrap().amount_msats(amt_msat.unwrap()).build()
+ } else {
+ offer_builder.unwrap().build()
+ };
+
+ if offer.is_err() {
+ println!("ERROR: Failed to build offer: {:?}", offer.unwrap_err());
+ } else {
+ // Note that unlike BOLT11 invoice creation we don't bother to add a
+ // pending inbound payment here, as offers can be reused and don't
+ // correspond with individual payments.
+ println!("{}", offer.unwrap());
+ }
+ }
"getinvoice" => {
let amt_str = words.next();
if amt_str.is_none() {
println!(" disconnectpeer <peer_pubkey>");
println!(" listpeers");
println!("\n Payments:");
- println!(" sendpayment <invoice>");
+ println!(" sendpayment <invoice|offer> [<amount_msat>]");
println!(" keysend <dest_pubkey> <amt_msats>");
println!(" listpayments");
println!("\n Invoices:");
println!(" getinvoice <amt_msats> <expiry_secs>");
+ println!(" getoffer [<amt_msats>]");
println!("\n Other:");
println!(" signmessage <message>");
println!(
}
fn send_payment(
- channel_manager: &ChannelManager, invoice: &Bolt11Invoice,
+ channel_manager: &ChannelManager, invoice: &Bolt11Invoice, required_amount_msat: Option<u64>,
outbound_payments: &mut OutboundPaymentInfoStorage, fs_store: Arc<FilesystemStore>,
) {
let payment_id = PaymentId((*invoice.payment_hash()).to_byte_array());
let payment_secret = Some(*invoice.payment_secret());
- let (payment_hash, recipient_onion, route_params) =
- match payment_parameters_from_invoice(invoice) {
- Ok(res) => res,
- Err(e) => {
- println!("Failed to parse invoice");
- print!("> ");
- return;
- }
- };
+ let zero_amt_invoice =
+ invoice.amount_milli_satoshis().is_none() || invoice.amount_milli_satoshis() == Some(0);
+ let pay_params_opt = if zero_amt_invoice {
+ if let Some(amt_msat) = required_amount_msat {
+ payment_parameters_from_zero_amount_invoice(invoice, amt_msat)
+ } else {
+ println!("Need an amount for the given 0-value invoice");
+ print!("> ");
+ return;
+ }
+ } else {
+ if required_amount_msat.is_some() && invoice.amount_milli_satoshis() != required_amount_msat
+ {
+ println!(
+ "Amount didn't match invoice value of {}msat",
+ invoice.amount_milli_satoshis().unwrap_or(0)
+ );
+ print!("> ");
+ return;
+ }
+ payment_parameters_from_invoice(invoice)
+ };
+ let (payment_hash, recipient_onion, route_params) = match pay_params_opt {
+ Ok(res) => res,
+ Err(e) => {
+ println!("Failed to parse invoice");
+ print!("> ");
+ return;
+ }
+ };
outbound_payments.payments.insert(
payment_id,
PaymentInfo {
projects / ldk-sample / blobdiff