//! and payee using information provided by the payer and from the payee's [`Invoice`], when
//! applicable.
//!
-//! [`InvoicePayer`] is parameterized by a [`LockableScore`], which it uses for scoring failed and
-//! successful payment paths upon receiving [`Event::PaymentPathFailed`] and
-//! [`Event::PaymentPathSuccessful`] events, respectively.
+//! [`InvoicePayer`] uses its [`Router`] parameterization for optionally notifying scorers upon
+//! receiving the [`Event::PaymentPathFailed`] and [`Event::PaymentPathSuccessful`] events.
+//! It also does the same for payment probe failure and success events using [`Event::ProbeFailed`]
+//! and [`Event::ProbeSuccessful`].
//!
//! [`InvoicePayer`] is capable of retrying failed payments. It accomplishes this by implementing
//! [`EventHandler`] which decorates a user-provided handler. It will intercept any
//! # extern crate lightning_invoice;
//! # extern crate secp256k1;
//! #
-//! # #[cfg(feature = "no-std")]
-//! # extern crate core2;
-//! #
+//! # use lightning::io;
//! # use lightning::ln::{PaymentHash, PaymentPreimage, PaymentSecret};
//! # use lightning::ln::channelmanager::{ChannelDetails, PaymentId, PaymentSendFailure};
//! # use lightning::ln::msgs::LightningError;
//! # use lightning::routing::gossip::NodeId;
-//! # use lightning::routing::router::{Route, RouteHop, RouteParameters};
+//! # use lightning::routing::router::{InFlightHtlcs, Route, RouteHop, RouteParameters, Router};
//! # use lightning::routing::scoring::{ChannelUsage, Score};
//! # use lightning::util::events::{Event, EventHandler, EventsProvider};
//! # use lightning::util::logger::{Logger, Record};
//! # use lightning::util::ser::{Writeable, Writer};
//! # use lightning_invoice::Invoice;
-//! # use lightning_invoice::payment::{InvoicePayer, Payer, Retry, Router};
+//! # use lightning_invoice::payment::{InvoicePayer, Payer, Retry};
//! # use secp256k1::PublicKey;
//! # use std::cell::RefCell;
//! # use std::ops::Deref;
//! #
-//! # #[cfg(not(feature = "std"))]
-//! # use core2::io;
-//! # #[cfg(feature = "std")]
-//! # use std::io;
-//! #
//! # struct FakeEventProvider {}
//! # impl EventsProvider for FakeEventProvider {
//! # fn process_pending_events<H: Deref>(&self, handler: H) where H::Target: EventHandler {}
//! # fn node_id(&self) -> PublicKey { unimplemented!() }
//! # fn first_hops(&self) -> Vec<ChannelDetails> { unimplemented!() }
//! # fn send_payment(
-//! # &self, route: &Route, payment_hash: PaymentHash, payment_secret: &Option<PaymentSecret>
-//! # ) -> Result<PaymentId, PaymentSendFailure> { unimplemented!() }
+//! # &self, route: &Route, payment_hash: PaymentHash, payment_secret: &Option<PaymentSecret>,
+//! # payment_id: PaymentId
+//! # ) -> Result<(), PaymentSendFailure> { unimplemented!() }
//! # fn send_spontaneous_payment(
-//! # &self, route: &Route, payment_preimage: PaymentPreimage
-//! # ) -> Result<PaymentId, PaymentSendFailure> { unimplemented!() }
+//! # &self, route: &Route, payment_preimage: PaymentPreimage, payment_id: PaymentId,
+//! # ) -> Result<(), PaymentSendFailure> { unimplemented!() }
//! # fn retry_payment(
//! # &self, route: &Route, payment_id: PaymentId
//! # ) -> Result<(), PaymentSendFailure> { unimplemented!() }
//! # fn abandon_payment(&self, payment_id: PaymentId) { unimplemented!() }
+//! # fn inflight_htlcs(&self) -> InFlightHtlcs { unimplemented!() }
//! # }
//! #
//! # struct FakeRouter {}
-//! # impl<S: Score> Router<S> for FakeRouter {
+//! # impl Router for FakeRouter {
//! # fn find_route(
-//! # &self, payer: &PublicKey, params: &RouteParameters, payment_hash: &PaymentHash,
-//! # first_hops: Option<&[&ChannelDetails]>, scorer: &S
+//! # &self, payer: &PublicKey, params: &RouteParameters,
+//! # first_hops: Option<&[&ChannelDetails]>, _inflight_htlcs: InFlightHtlcs
//! # ) -> Result<Route, LightningError> { unimplemented!() }
+//! # fn notify_payment_path_failed(&self, path: &[&RouteHop], short_channel_id: u64) { unimplemented!() }
+//! # fn notify_payment_path_successful(&self, path: &[&RouteHop]) { unimplemented!() }
+//! # fn notify_payment_probe_successful(&self, path: &[&RouteHop]) { unimplemented!() }
+//! # fn notify_payment_probe_failed(&self, path: &[&RouteHop], short_channel_id: u64) { unimplemented!() }
//! # }
//! #
//! # struct FakeScorer {}
//! # }
//! #
//! # fn main() {
-//! let event_handler = |event: &Event| {
+//! let event_handler = |event: Event| {
//! match event {
//! Event::PaymentPathFailed { .. } => println!("payment failed after retries"),
//! Event::PaymentSent { .. } => println!("payment successful"),
//! # let router = FakeRouter {};
//! # let scorer = RefCell::new(FakeScorer {});
//! # let logger = FakeLogger {};
-//! let invoice_payer = InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(2));
+//! let invoice_payer = InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(2));
//!
//! let invoice = "...";
//! if let Ok(invoice) = invoice.parse::<Invoice>() {
use lightning::ln::{PaymentHash, PaymentPreimage, PaymentSecret};
use lightning::ln::channelmanager::{ChannelDetails, PaymentId, PaymentSendFailure};
use lightning::ln::msgs::LightningError;
-use lightning::routing::scoring::{LockableScore, Score};
-use lightning::routing::router::{PaymentParameters, Route, RouteParameters};
+use lightning::routing::router::{InFlightHtlcs, PaymentParameters, Route, RouteParameters, Router};
use lightning::util::events::{Event, EventHandler};
use lightning::util::logger::Logger;
-use time_utils::Time;
+use crate::time_utils::Time;
use crate::sync::Mutex;
use secp256k1::PublicKey;
use core::fmt;
use core::fmt::{Debug, Display, Formatter};
+use core::future::Future;
use core::ops::Deref;
use core::time::Duration;
#[cfg(feature = "std")]
/// See [module-level documentation] for details.
///
/// [module-level documentation]: crate::payment
-pub type InvoicePayer<P, R, S, L, E> = InvoicePayerUsingTime::<P, R, S, L, E, ConfiguredTime>;
+pub type InvoicePayer<P, R, L, E> = InvoicePayerUsingTime::<P, R, L, E, ConfiguredTime>;
#[cfg(not(feature = "no-std"))]
type ConfiguredTime = std::time::Instant;
#[cfg(feature = "no-std")]
-use time_utils;
+use crate::time_utils;
#[cfg(feature = "no-std")]
type ConfiguredTime = time_utils::Eternity;
+/// Sealed trait with a blanket implementation to allow both sync and async implementations of event
+/// handling to exist within the InvoicePayer.
+mod sealed {
+ pub trait BaseEventHandler {}
+ impl<T> BaseEventHandler for T {}
+}
+
/// (C-not exported) generally all users should use the [`InvoicePayer`] type alias.
-pub struct InvoicePayerUsingTime<P: Deref, R, S: Deref, L: Deref, E: EventHandler, T: Time>
-where
+pub struct InvoicePayerUsingTime<
+ P: Deref,
+ R: Router,
+ L: Deref,
+ E: sealed::BaseEventHandler,
+ T: Time
+> where
P::Target: Payer,
- R: for <'a> Router<<<S as Deref>::Target as LockableScore<'a>>::Locked>,
- S::Target: for <'a> LockableScore<'a>,
L::Target: Logger,
{
payer: P,
router: R,
- scorer: S,
logger: L,
event_handler: E,
/// Caches the overall attempts at making a payment, which is updated prior to retrying.
}
/// A trait defining behavior of an [`Invoice`] payer.
+///
+/// While the behavior of [`InvoicePayer`] provides idempotency of duplicate `send_*payment` calls
+/// with the same [`PaymentHash`], it is up to the `Payer` to provide idempotency across restarts.
+///
+/// [`ChannelManager`] provides idempotency for duplicate payments with the same [`PaymentId`].
+///
+/// In order to trivially ensure idempotency for payments, the default `Payer` implementation
+/// reuses the [`PaymentHash`] bytes as the [`PaymentId`]. Custom implementations wishing to
+/// provide payment idempotency with a different idempotency key (i.e. [`PaymentId`]) should map
+/// the [`Invoice`] or spontaneous payment target pubkey to their own idempotency key.
+///
+/// [`ChannelManager`]: lightning::ln::channelmanager::ChannelManager
pub trait Payer {
/// Returns the payer's node id.
fn node_id(&self) -> PublicKey;
/// Sends a payment over the Lightning Network using the given [`Route`].
fn send_payment(
- &self, route: &Route, payment_hash: PaymentHash, payment_secret: &Option<PaymentSecret>
- ) -> Result<PaymentId, PaymentSendFailure>;
+ &self, route: &Route, payment_hash: PaymentHash, payment_secret: &Option<PaymentSecret>,
+ payment_id: PaymentId
+ ) -> Result<(), PaymentSendFailure>;
/// Sends a spontaneous payment over the Lightning Network using the given [`Route`].
fn send_spontaneous_payment(
- &self, route: &Route, payment_preimage: PaymentPreimage
- ) -> Result<PaymentId, PaymentSendFailure>;
+ &self, route: &Route, payment_preimage: PaymentPreimage, payment_id: PaymentId
+ ) -> Result<(), PaymentSendFailure>;
/// Retries a failed payment path for the [`PaymentId`] using the given [`Route`].
fn retry_payment(&self, route: &Route, payment_id: PaymentId) -> Result<(), PaymentSendFailure>;
/// Signals that no further retries for the given payment will occur.
fn abandon_payment(&self, payment_id: PaymentId);
-}
-/// A trait defining behavior for routing an [`Invoice`] payment.
-pub trait Router<S: Score> {
- /// Finds a [`Route`] between `payer` and `payee` for a payment with the given values.
- fn find_route(
- &self, payer: &PublicKey, route_params: &RouteParameters, payment_hash: &PaymentHash,
- first_hops: Option<&[&ChannelDetails]>, scorer: &S
- ) -> Result<Route, LightningError>;
+ /// Construct an [`InFlightHtlcs`] containing information about currently used up liquidity
+ /// across payments.
+ fn inflight_htlcs(&self) -> InFlightHtlcs;
}
/// Strategies available to retry payment path failures for an [`Invoice`].
Sending(PaymentSendFailure),
}
-impl<P: Deref, R, S: Deref, L: Deref, E: EventHandler, T: Time> InvoicePayerUsingTime<P, R, S, L, E, T>
+impl<P: Deref, R: Router, L: Deref, E: sealed::BaseEventHandler, T: Time>
+ InvoicePayerUsingTime<P, R, L, E, T>
where
P::Target: Payer,
- R: for <'a> Router<<<S as Deref>::Target as LockableScore<'a>>::Locked>,
- S::Target: for <'a> LockableScore<'a>,
L::Target: Logger,
{
/// Creates an invoice payer that retries failed payment paths.
/// Will forward any [`Event::PaymentPathFailed`] events to the decorated `event_handler` once
/// `retry` has been exceeded for a given [`Invoice`].
pub fn new(
- payer: P, router: R, scorer: S, logger: L, event_handler: E, retry: Retry
+ payer: P, router: R, logger: L, event_handler: E, retry: Retry
) -> Self {
Self {
payer,
router,
- scorer,
logger,
event_handler,
payment_cache: Mutex::new(HashMap::new()),
/// Pays the given [`Invoice`], caching it for later use in case a retry is needed.
///
- /// You should ensure that the `invoice.payment_hash()` is unique and the same payment_hash has
- /// never been paid before. Because [`InvoicePayer`] is stateless no effort is made to do so
- /// for you.
+ /// [`Invoice::payment_hash`] is used as the [`PaymentId`], which ensures idempotency as long
+ /// as the payment is still pending. Once the payment completes or fails, you must ensure that
+ /// a second payment with the same [`PaymentHash`] is never sent.
+ ///
+ /// If you wish to use a different payment idempotency token, see
+ /// [`Self::pay_invoice_with_id`].
pub fn pay_invoice(&self, invoice: &Invoice) -> Result<PaymentId, PaymentError> {
+ let payment_id = PaymentId(invoice.payment_hash().into_inner());
+ self.pay_invoice_with_id(invoice, payment_id).map(|()| payment_id)
+ }
+
+ /// Pays the given [`Invoice`] with a custom idempotency key, caching the invoice for later use
+ /// in case a retry is needed.
+ ///
+ /// Note that idempotency is only guaranteed as long as the payment is still pending. Once the
+ /// payment completes or fails, no idempotency guarantees are made.
+ ///
+ /// You should ensure that the [`Invoice::payment_hash`] is unique and the same [`PaymentHash`]
+ /// has never been paid before.
+ ///
+ /// See [`Self::pay_invoice`] for a variant which uses the [`PaymentHash`] for the idempotency
+ /// token.
+ pub fn pay_invoice_with_id(&self, invoice: &Invoice, payment_id: PaymentId) -> Result<(), PaymentError> {
if invoice.amount_milli_satoshis().is_none() {
Err(PaymentError::Invoice("amount missing"))
} else {
- self.pay_invoice_using_amount(invoice, None)
+ self.pay_invoice_using_amount(invoice, None, payment_id)
}
}
/// Pays the given zero-value [`Invoice`] using the given amount, caching it for later use in
/// case a retry is needed.
///
- /// You should ensure that the `invoice.payment_hash()` is unique and the same payment_hash has
- /// never been paid before. Because [`InvoicePayer`] is stateless no effort is made to do so
- /// for you.
+ /// [`Invoice::payment_hash`] is used as the [`PaymentId`], which ensures idempotency as long
+ /// as the payment is still pending. Once the payment completes or fails, you must ensure that
+ /// a second payment with the same [`PaymentHash`] is never sent.
+ ///
+ /// If you wish to use a different payment idempotency token, see
+ /// [`Self::pay_zero_value_invoice_with_id`].
pub fn pay_zero_value_invoice(
&self, invoice: &Invoice, amount_msats: u64
) -> Result<PaymentId, PaymentError> {
+ let payment_id = PaymentId(invoice.payment_hash().into_inner());
+ self.pay_zero_value_invoice_with_id(invoice, amount_msats, payment_id).map(|()| payment_id)
+ }
+
+ /// Pays the given zero-value [`Invoice`] using the given amount and custom idempotency key,
+ /// caching the invoice for later use in case a retry is needed.
+ ///
+ /// Note that idempotency is only guaranteed as long as the payment is still pending. Once the
+ /// payment completes or fails, no idempotency guarantees are made.
+ ///
+ /// You should ensure that the [`Invoice::payment_hash`] is unique and the same [`PaymentHash`]
+ /// has never been paid before.
+ ///
+ /// See [`Self::pay_zero_value_invoice`] for a variant which uses the [`PaymentHash`] for the
+ /// idempotency token.
+ pub fn pay_zero_value_invoice_with_id(
+ &self, invoice: &Invoice, amount_msats: u64, payment_id: PaymentId
+ ) -> Result<(), PaymentError> {
if invoice.amount_milli_satoshis().is_some() {
Err(PaymentError::Invoice("amount unexpected"))
} else {
- self.pay_invoice_using_amount(invoice, Some(amount_msats))
+ self.pay_invoice_using_amount(invoice, Some(amount_msats), payment_id)
}
}
fn pay_invoice_using_amount(
- &self, invoice: &Invoice, amount_msats: Option<u64>
- ) -> Result<PaymentId, PaymentError> {
+ &self, invoice: &Invoice, amount_msats: Option<u64>, payment_id: PaymentId
+ ) -> Result<(), PaymentError> {
debug_assert!(invoice.amount_milli_satoshis().is_some() ^ amount_msats.is_some());
let payment_hash = PaymentHash(invoice.payment_hash().clone().into_inner());
};
let send_payment = |route: &Route| {
- self.payer.send_payment(route, payment_hash, &payment_secret)
+ self.payer.send_payment(route, payment_hash, &payment_secret, payment_id)
};
self.pay_internal(&route_params, payment_hash, send_payment)
/// Pays `pubkey` an amount using the hash of the given preimage, caching it for later use in
/// case a retry is needed.
///
- /// You should ensure that `payment_preimage` is unique and that its `payment_hash` has never
- /// been paid before. Because [`InvoicePayer`] is stateless no effort is made to do so for you.
+ /// The hash of the [`PaymentPreimage`] is used as the [`PaymentId`], which ensures idempotency
+ /// as long as the payment is still pending. Once the payment completes or fails, you must
+ /// ensure that a second payment with the same [`PaymentPreimage`] is never sent.
pub fn pay_pubkey(
&self, pubkey: PublicKey, payment_preimage: PaymentPreimage, amount_msats: u64,
final_cltv_expiry_delta: u32
) -> Result<PaymentId, PaymentError> {
let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0).into_inner());
+ let payment_id = PaymentId(payment_hash.0);
+ self.do_pay_pubkey(pubkey, payment_preimage, payment_hash, payment_id, amount_msats,
+ final_cltv_expiry_delta)
+ .map(|()| payment_id)
+ }
+
+ /// Pays `pubkey` an amount using the hash of the given preimage and a custom idempotency key,
+ /// caching the invoice for later use in case a retry is needed.
+ ///
+ /// Note that idempotency is only guaranteed as long as the payment is still pending. Once the
+ /// payment completes or fails, no idempotency guarantees are made.
+ ///
+ /// You should ensure that the [`PaymentPreimage`] is unique and the corresponding
+ /// [`PaymentHash`] has never been paid before.
+ pub fn pay_pubkey_with_id(
+ &self, pubkey: PublicKey, payment_preimage: PaymentPreimage, payment_id: PaymentId,
+ amount_msats: u64, final_cltv_expiry_delta: u32
+ ) -> Result<(), PaymentError> {
+ let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0).into_inner());
+ self.do_pay_pubkey(pubkey, payment_preimage, payment_hash, payment_id, amount_msats,
+ final_cltv_expiry_delta)
+ }
+
+ fn do_pay_pubkey(
+ &self, pubkey: PublicKey, payment_preimage: PaymentPreimage, payment_hash: PaymentHash,
+ payment_id: PaymentId, amount_msats: u64, final_cltv_expiry_delta: u32
+ ) -> Result<(), PaymentError> {
match self.payment_cache.lock().unwrap().entry(payment_hash) {
hash_map::Entry::Occupied(_) => return Err(PaymentError::Invoice("payment pending")),
hash_map::Entry::Vacant(entry) => entry.insert(PaymentAttempts::new()),
};
let send_payment = |route: &Route| {
- self.payer.send_spontaneous_payment(route, payment_preimage)
+ self.payer.send_spontaneous_payment(route, payment_preimage, payment_id)
};
self.pay_internal(&route_params, payment_hash, send_payment)
.map_err(|e| { self.payment_cache.lock().unwrap().remove(&payment_hash); e })
}
- fn pay_internal<F: FnOnce(&Route) -> Result<PaymentId, PaymentSendFailure> + Copy>(
+ fn pay_internal<F: FnOnce(&Route) -> Result<(), PaymentSendFailure> + Copy>(
&self, params: &RouteParameters, payment_hash: PaymentHash, send_payment: F,
- ) -> Result<PaymentId, PaymentError> {
+ ) -> Result<(), PaymentError> {
#[cfg(feature = "std")] {
if has_expired(params) {
log_trace!(self.logger, "Invoice expired prior to send for payment {}", log_bytes!(payment_hash.0));
let payer = self.payer.node_id();
let first_hops = self.payer.first_hops();
+ let inflight_htlcs = self.payer.inflight_htlcs();
let route = self.router.find_route(
- &payer, params, &payment_hash, Some(&first_hops.iter().collect::<Vec<_>>()),
- &self.scorer.lock()
+ &payer, ¶ms, Some(&first_hops.iter().collect::<Vec<_>>()), inflight_htlcs
).map_err(|e| PaymentError::Routing(e))?;
match send_payment(&route) {
- Ok(payment_id) => Ok(payment_id),
+ Ok(()) => Ok(()),
Err(e) => match e {
PaymentSendFailure::ParameterError(_) => Err(e),
PaymentSendFailure::PathParameterError(_) => Err(e),
- PaymentSendFailure::AllFailedRetrySafe(_) => {
+ PaymentSendFailure::DuplicatePayment => Err(e),
+ PaymentSendFailure::AllFailedResendSafe(_) => {
let mut payment_cache = self.payment_cache.lock().unwrap();
let payment_attempts = payment_cache.get_mut(&payment_hash).unwrap();
payment_attempts.count += 1;
// consider the payment sent, so return `Ok()` here, ignoring any retry
// errors.
let _ = self.retry_payment(payment_id, payment_hash, &retry_data);
- Ok(payment_id)
+ Ok(())
} else {
// This may happen if we send a payment and some paths fail, but
// only due to a temporary monitor failure or the like, implying
// they're really in-flight, but we haven't sent the initial
// HTLC-Add messages yet.
- Ok(payment_id)
+ Ok(())
}
},
},
) -> Result<(), ()> {
let attempts =
*self.payment_cache.lock().unwrap().entry(payment_hash)
- .and_modify(|attempts| attempts.count += 1)
- .or_insert(PaymentAttempts {
- count: 1,
- first_attempted_at: T::now()
- });
+ .and_modify(|attempts| attempts.count += 1)
+ .or_insert(PaymentAttempts {
+ count: 1,
+ first_attempted_at: T::now()
+ });
if !self.retry.is_retryable_now(&attempts) {
log_trace!(self.logger, "Payment {} exceeded maximum attempts; not retrying ({})", log_bytes!(payment_hash.0), attempts);
let payer = self.payer.node_id();
let first_hops = self.payer.first_hops();
+ let inflight_htlcs = self.payer.inflight_htlcs();
+
let route = self.router.find_route(
- &payer, ¶ms, &payment_hash, Some(&first_hops.iter().collect::<Vec<_>>()),
- &self.scorer.lock()
+ &payer, ¶ms, Some(&first_hops.iter().collect::<Vec<_>>()), inflight_htlcs
);
+
if route.is_err() {
log_trace!(self.logger, "Failed to find a route for payment {}; not retrying ({:})", log_bytes!(payment_hash.0), attempts);
return Err(());
}
- match self.payer.retry_payment(&route.unwrap(), payment_id) {
+ match self.payer.retry_payment(&route.as_ref().unwrap(), payment_id) {
Ok(()) => Ok(()),
Err(PaymentSendFailure::ParameterError(_)) |
Err(PaymentSendFailure::PathParameterError(_)) => {
log_trace!(self.logger, "Failed to retry for payment {} due to bogus route/payment data, not retrying.", log_bytes!(payment_hash.0));
Err(())
},
- Err(PaymentSendFailure::AllFailedRetrySafe(_)) => {
+ Err(PaymentSendFailure::AllFailedResendSafe(_)) => {
self.retry_payment(payment_id, payment_hash, params)
},
+ Err(PaymentSendFailure::DuplicatePayment) => {
+ log_error!(self.logger, "Got a DuplicatePayment error when attempting to retry a payment, this shouldn't happen.");
+ Err(())
+ }
Err(PaymentSendFailure::PartialFailure { failed_paths_retry, .. }) => {
if let Some(retry) = failed_paths_retry {
// Always return Ok for the same reason as noted in pay_internal.
} else { false }
}
-impl<P: Deref, R, S: Deref, L: Deref, E: EventHandler, T: Time> EventHandler for InvoicePayerUsingTime<P, R, S, L, E, T>
+impl<P: Deref, R: Router, L: Deref, E: sealed::BaseEventHandler, T: Time>
+ InvoicePayerUsingTime<P, R, L, E, T>
where
P::Target: Payer,
- R: for <'a> Router<<<S as Deref>::Target as LockableScore<'a>>::Locked>,
- S::Target: for <'a> LockableScore<'a>,
L::Target: Logger,
{
- fn handle_event(&self, event: &Event) {
+ /// Returns a bool indicating whether the processed event should be forwarded to a user-provided
+ /// event handler.
+ fn handle_event_internal(&self, event: &Event) -> bool {
match event {
Event::PaymentPathFailed {
- payment_id, payment_hash, rejected_by_dest, path, short_channel_id, retry, ..
+ payment_id, payment_hash, payment_failed_permanently, path, short_channel_id, retry, ..
} => {
if let Some(short_channel_id) = short_channel_id {
let path = path.iter().collect::<Vec<_>>();
- self.scorer.lock().payment_path_failed(&path, *short_channel_id);
+ self.router.notify_payment_path_failed(&path, *short_channel_id)
}
if payment_id.is_none() {
log_trace!(self.logger, "Payment {} has no id; not retrying", log_bytes!(payment_hash.0));
- } else if *rejected_by_dest {
+ } else if *payment_failed_permanently {
log_trace!(self.logger, "Payment {} rejected by destination; not retrying", log_bytes!(payment_hash.0));
self.payer.abandon_payment(payment_id.unwrap());
} else if retry.is_none() {
self.payer.abandon_payment(payment_id.unwrap());
} else if self.retry_payment(payment_id.unwrap(), *payment_hash, retry.as_ref().unwrap()).is_ok() {
// We retried at least somewhat, don't provide the PaymentPathFailed event to the user.
- return;
+ return false;
} else {
self.payer.abandon_payment(payment_id.unwrap());
}
},
Event::PaymentPathSuccessful { path, .. } => {
let path = path.iter().collect::<Vec<_>>();
- self.scorer.lock().payment_path_successful(&path);
+ self.router.notify_payment_path_successful(&path);
},
Event::PaymentSent { payment_hash, .. } => {
let mut payment_cache = self.payment_cache.lock().unwrap();
Event::ProbeSuccessful { payment_hash, path, .. } => {
log_trace!(self.logger, "Probe payment {} of {}msat was successful", log_bytes!(payment_hash.0), path.last().unwrap().fee_msat);
let path = path.iter().collect::<Vec<_>>();
- self.scorer.lock().probe_successful(&path);
+ self.router.notify_payment_probe_successful(&path);
},
Event::ProbeFailed { payment_hash, path, short_channel_id, .. } => {
if let Some(short_channel_id) = short_channel_id {
log_trace!(self.logger, "Probe payment {} of {}msat failed at channel {}", log_bytes!(payment_hash.0), path.last().unwrap().fee_msat, *short_channel_id);
let path = path.iter().collect::<Vec<_>>();
- self.scorer.lock().probe_failed(&path, *short_channel_id);
+ self.router.notify_payment_probe_failed(&path, *short_channel_id);
}
},
_ => {},
}
// Delegate to the decorated event handler unless the payment is retried.
- self.event_handler.handle_event(event)
+ true
+ }
+}
+
+impl<P: Deref, R: Router, L: Deref, E: EventHandler, T: Time>
+ EventHandler for InvoicePayerUsingTime<P, R, L, E, T>
+where
+ P::Target: Payer,
+ L::Target: Logger,
+{
+ fn handle_event(&self, event: Event) {
+ let should_forward = self.handle_event_internal(&event);
+ if should_forward {
+ self.event_handler.handle_event(event)
+ }
+ }
+}
+
+impl<P: Deref, R: Router, L: Deref, T: Time, F: Future, H: Fn(Event) -> F>
+ InvoicePayerUsingTime<P, R, L, H, T>
+where
+ P::Target: Payer,
+ L::Target: Logger,
+{
+ /// Intercepts events required by the [`InvoicePayer`] and forwards them to the underlying event
+ /// handler, if necessary, to handle them asynchronously.
+ pub async fn handle_event_async(&self, event: Event) {
+ let should_forward = self.handle_event_internal(&event);
+ if should_forward {
+ (self.event_handler)(event).await;
+ }
}
}
mod tests {
use super::*;
use crate::{InvoiceBuilder, Currency};
- use utils::create_invoice_from_channelmanager_and_duration_since_epoch;
+ use crate::utils::create_invoice_from_channelmanager_and_duration_since_epoch;
use bitcoin_hashes::sha256::Hash as Sha256;
use lightning::ln::PaymentPreimage;
- use lightning::ln::features::{ChannelFeatures, NodeFeatures, InitFeatures};
+ use lightning::ln::channelmanager;
+ use lightning::ln::features::{ChannelFeatures, NodeFeatures};
use lightning::ln::functional_test_utils::*;
use lightning::ln::msgs::{ChannelMessageHandler, ErrorAction, LightningError};
- use lightning::routing::gossip::NodeId;
- use lightning::routing::router::{PaymentParameters, Route, RouteHop};
- use lightning::routing::scoring::ChannelUsage;
+ use lightning::routing::gossip::{EffectiveCapacity, NodeId};
+ use lightning::routing::router::{InFlightHtlcs, PaymentParameters, Route, RouteHop, Router, ScorerAccountingForInFlightHtlcs};
+ use lightning::routing::scoring::{ChannelUsage, LockableScore, Score};
use lightning::util::test_utils::TestLogger;
use lightning::util::errors::APIError;
use lightning::util::events::{Event, EventsProvider, MessageSendEvent, MessageSendEventsProvider};
use secp256k1::{SecretKey, PublicKey, Secp256k1};
use std::cell::RefCell;
use std::collections::VecDeque;
+ use std::ops::DerefMut;
use std::time::{SystemTime, Duration};
- use time_utils::tests::SinceEpoch;
- use DEFAULT_EXPIRY_TIME;
+ use crate::time_utils::tests::SinceEpoch;
+ use crate::DEFAULT_EXPIRY_TIME;
fn invoice(payment_preimage: PaymentPreimage) -> Invoice {
let payment_hash = Sha256::hash(&payment_preimage.0);
#[test]
fn pays_invoice_on_first_attempt() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = invoice(payment_preimage);
let final_value_msat = invoice.amount_milli_satoshis().unwrap();
let payer = TestPayer::new().expect_send(Amount::ForInvoice(final_value_msat));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(0));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(0));
let payment_id = Some(invoice_payer.pay_invoice(&invoice).unwrap());
assert_eq!(*payer.attempts.borrow(), 1);
- invoice_payer.handle_event(&Event::PaymentSent {
+ invoice_payer.handle_event(Event::PaymentSent {
payment_id, payment_preimage, payment_hash, fee_paid_msat: None
});
assert_eq!(*event_handled.borrow(), true);
#[test]
fn pays_invoice_on_retry() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = invoice(payment_preimage);
let payer = TestPayer::new()
.expect_send(Amount::ForInvoice(final_value_msat))
.expect_send(Amount::OnRetry(final_value_msat / 2));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(2));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(2));
let payment_id = Some(invoice_payer.pay_invoice(&invoice).unwrap());
assert_eq!(*payer.attempts.borrow(), 1);
payment_id,
payment_hash,
network_update: None,
- rejected_by_dest: false,
+ payment_failed_permanently: false,
all_paths_failed: false,
path: TestRouter::path_for_value(final_value_msat),
short_channel_id: None,
retry: Some(TestRouter::retry_for_invoice(&invoice)),
};
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event);
assert_eq!(*event_handled.borrow(), false);
assert_eq!(*payer.attempts.borrow(), 2);
- invoice_payer.handle_event(&Event::PaymentSent {
+ invoice_payer.handle_event(Event::PaymentSent {
payment_id, payment_preimage, payment_hash, fee_paid_msat: None
});
assert_eq!(*event_handled.borrow(), true);
#[test]
fn pays_invoice_on_partial_failure() {
- let event_handler = |_: &_| { panic!() };
+ let event_handler = |_: Event| { panic!() };
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = invoice(payment_preimage);
let final_value_msat = invoice.amount_milli_satoshis().unwrap();
let payer = TestPayer::new()
- .fails_with_partial_failure(retry.clone(), OnAttempt(1))
- .fails_with_partial_failure(retry, OnAttempt(2))
+ .fails_with_partial_failure(retry.clone(), OnAttempt(1), None)
+ .fails_with_partial_failure(retry, OnAttempt(2), None)
.expect_send(Amount::ForInvoice(final_value_msat))
.expect_send(Amount::OnRetry(final_value_msat / 2))
.expect_send(Amount::OnRetry(final_value_msat / 2));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(2));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(2));
assert!(invoice_payer.pay_invoice(&invoice).is_ok());
}
#[test]
fn retries_payment_path_for_unknown_payment() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = invoice(payment_preimage);
let payer = TestPayer::new()
.expect_send(Amount::OnRetry(final_value_msat / 2))
.expect_send(Amount::OnRetry(final_value_msat / 2));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(2));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(2));
let payment_id = Some(PaymentId([1; 32]));
let event = Event::PaymentPathFailed {
payment_id,
payment_hash,
network_update: None,
- rejected_by_dest: false,
+ payment_failed_permanently: false,
all_paths_failed: false,
path: TestRouter::path_for_value(final_value_msat),
short_channel_id: None,
retry: Some(TestRouter::retry_for_invoice(&invoice)),
};
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event.clone());
assert_eq!(*event_handled.borrow(), false);
assert_eq!(*payer.attempts.borrow(), 1);
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event.clone());
assert_eq!(*event_handled.borrow(), false);
assert_eq!(*payer.attempts.borrow(), 2);
- invoice_payer.handle_event(&Event::PaymentSent {
+ invoice_payer.handle_event(Event::PaymentSent {
payment_id, payment_preimage, payment_hash, fee_paid_msat: None
});
assert_eq!(*event_handled.borrow(), true);
#[test]
fn fails_paying_invoice_after_max_retry_counts() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = invoice(payment_preimage);
.expect_send(Amount::ForInvoice(final_value_msat))
.expect_send(Amount::OnRetry(final_value_msat / 2))
.expect_send(Amount::OnRetry(final_value_msat / 2));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(2));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(2));
let payment_id = Some(invoice_payer.pay_invoice(&invoice).unwrap());
assert_eq!(*payer.attempts.borrow(), 1);
payment_id,
payment_hash: PaymentHash(invoice.payment_hash().clone().into_inner()),
network_update: None,
- rejected_by_dest: false,
+ payment_failed_permanently: false,
all_paths_failed: true,
path: TestRouter::path_for_value(final_value_msat),
short_channel_id: None,
retry: Some(TestRouter::retry_for_invoice(&invoice)),
};
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event);
assert_eq!(*event_handled.borrow(), false);
assert_eq!(*payer.attempts.borrow(), 2);
payment_id,
payment_hash: PaymentHash(invoice.payment_hash().clone().into_inner()),
network_update: None,
- rejected_by_dest: false,
+ payment_failed_permanently: false,
all_paths_failed: false,
path: TestRouter::path_for_value(final_value_msat / 2),
short_channel_id: None,
final_value_msat: final_value_msat / 2, ..TestRouter::retry_for_invoice(&invoice)
}),
};
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event.clone());
assert_eq!(*event_handled.borrow(), false);
assert_eq!(*payer.attempts.borrow(), 3);
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event.clone());
assert_eq!(*event_handled.borrow(), true);
assert_eq!(*payer.attempts.borrow(), 3);
}
#[test]
fn fails_paying_invoice_after_max_retry_timeout() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = invoice(payment_preimage);
.expect_send(Amount::ForInvoice(final_value_msat))
.expect_send(Amount::OnRetry(final_value_msat / 2));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
- type InvoicePayerUsingSinceEpoch <P, R, S, L, E> = InvoicePayerUsingTime::<P, R, S, L, E, SinceEpoch>;
+ type InvoicePayerUsingSinceEpoch <P, R, L, E> = InvoicePayerUsingTime::<P, R, L, E, SinceEpoch>;
let invoice_payer =
- InvoicePayerUsingSinceEpoch::new(&payer, router, &scorer, &logger, event_handler, Retry::Timeout(Duration::from_secs(120)));
+ InvoicePayerUsingSinceEpoch::new(&payer, router, &logger, event_handler, Retry::Timeout(Duration::from_secs(120)));
let payment_id = Some(invoice_payer.pay_invoice(&invoice).unwrap());
assert_eq!(*payer.attempts.borrow(), 1);
payment_id,
payment_hash: PaymentHash(invoice.payment_hash().clone().into_inner()),
network_update: None,
- rejected_by_dest: false,
+ payment_failed_permanently: false,
all_paths_failed: true,
path: TestRouter::path_for_value(final_value_msat),
short_channel_id: None,
retry: Some(TestRouter::retry_for_invoice(&invoice)),
};
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event.clone());
assert_eq!(*event_handled.borrow(), false);
assert_eq!(*payer.attempts.borrow(), 2);
SinceEpoch::advance(Duration::from_secs(121));
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event.clone());
assert_eq!(*event_handled.borrow(), true);
assert_eq!(*payer.attempts.borrow(), 2);
}
#[test]
fn fails_paying_invoice_with_missing_retry_params() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = invoice(payment_preimage);
let final_value_msat = invoice.amount_milli_satoshis().unwrap();
let payer = TestPayer::new().expect_send(Amount::ForInvoice(final_value_msat));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(2));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(2));
let payment_id = Some(invoice_payer.pay_invoice(&invoice).unwrap());
assert_eq!(*payer.attempts.borrow(), 1);
payment_id,
payment_hash: PaymentHash(invoice.payment_hash().clone().into_inner()),
network_update: None,
- rejected_by_dest: false,
+ payment_failed_permanently: false,
all_paths_failed: false,
path: vec![],
short_channel_id: None,
retry: None,
};
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event);
assert_eq!(*event_handled.borrow(), true);
assert_eq!(*payer.attempts.borrow(), 1);
}
#[test]
fn fails_paying_invoice_after_expiration() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let payer = TestPayer::new();
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(2));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(2));
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = expired_invoice(payment_preimage);
#[test]
fn fails_retrying_invoice_after_expiration() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = invoice(payment_preimage);
let final_value_msat = invoice.amount_milli_satoshis().unwrap();
let payer = TestPayer::new().expect_send(Amount::ForInvoice(final_value_msat));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(2));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(2));
let payment_id = Some(invoice_payer.pay_invoice(&invoice).unwrap());
assert_eq!(*payer.attempts.borrow(), 1);
payment_id,
payment_hash: PaymentHash(invoice.payment_hash().clone().into_inner()),
network_update: None,
- rejected_by_dest: false,
+ payment_failed_permanently: false,
all_paths_failed: false,
path: vec![],
short_channel_id: None,
retry: Some(retry_data),
};
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event);
assert_eq!(*event_handled.borrow(), true);
assert_eq!(*payer.attempts.borrow(), 1);
}
#[test]
fn fails_paying_invoice_after_retry_error() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = invoice(payment_preimage);
.fails_on_attempt(2)
.expect_send(Amount::ForInvoice(final_value_msat))
.expect_send(Amount::OnRetry(final_value_msat / 2));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(2));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(2));
let payment_id = Some(invoice_payer.pay_invoice(&invoice).unwrap());
assert_eq!(*payer.attempts.borrow(), 1);
payment_id,
payment_hash: PaymentHash(invoice.payment_hash().clone().into_inner()),
network_update: None,
- rejected_by_dest: false,
+ payment_failed_permanently: false,
all_paths_failed: false,
path: TestRouter::path_for_value(final_value_msat / 2),
short_channel_id: None,
retry: Some(TestRouter::retry_for_invoice(&invoice)),
};
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event);
assert_eq!(*event_handled.borrow(), true);
assert_eq!(*payer.attempts.borrow(), 2);
}
#[test]
fn fails_paying_invoice_after_rejected_by_payee() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = invoice(payment_preimage);
let final_value_msat = invoice.amount_milli_satoshis().unwrap();
let payer = TestPayer::new().expect_send(Amount::ForInvoice(final_value_msat));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(2));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(2));
let payment_id = Some(invoice_payer.pay_invoice(&invoice).unwrap());
assert_eq!(*payer.attempts.borrow(), 1);
payment_id,
payment_hash: PaymentHash(invoice.payment_hash().clone().into_inner()),
network_update: None,
- rejected_by_dest: true,
+ payment_failed_permanently: true,
all_paths_failed: false,
path: vec![],
short_channel_id: None,
retry: Some(TestRouter::retry_for_invoice(&invoice)),
};
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event);
assert_eq!(*event_handled.borrow(), true);
assert_eq!(*payer.attempts.borrow(), 1);
}
#[test]
fn fails_repaying_invoice_with_pending_payment() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = invoice(payment_preimage);
let payer = TestPayer::new()
.expect_send(Amount::ForInvoice(final_value_msat))
.expect_send(Amount::ForInvoice(final_value_msat));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(0));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(0));
let payment_id = Some(invoice_payer.pay_invoice(&invoice).unwrap());
payment_id,
payment_hash,
network_update: None,
- rejected_by_dest: false,
+ payment_failed_permanently: false,
all_paths_failed: false,
path: vec![],
short_channel_id: None,
retry: Some(TestRouter::retry_for_invoice(&invoice)),
};
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event);
assert_eq!(*event_handled.borrow(), true);
}
fn fails_paying_invoice_with_routing_errors() {
let payer = TestPayer::new();
let router = FailingRouter {};
- let scorer = RefCell::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, |_: &_| {}, Retry::Attempts(0));
+ InvoicePayer::new(&payer, router, &logger, |_: Event| {}, Retry::Attempts(0));
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = invoice(payment_preimage);
let payer = TestPayer::new()
.fails_on_attempt(1)
.expect_send(Amount::ForInvoice(final_value_msat));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, |_: &_| {}, Retry::Attempts(0));
+ InvoicePayer::new(&payer, router, &logger, |_: Event| {}, Retry::Attempts(0));
match invoice_payer.pay_invoice(&invoice) {
Err(PaymentError::Sending(_)) => {},
#[test]
fn pays_zero_value_invoice_using_amount() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = zero_value_invoice(payment_preimage);
let final_value_msat = 100;
let payer = TestPayer::new().expect_send(Amount::ForInvoice(final_value_msat));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(0));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(0));
let payment_id =
Some(invoice_payer.pay_zero_value_invoice(&invoice, final_value_msat).unwrap());
assert_eq!(*payer.attempts.borrow(), 1);
- invoice_payer.handle_event(&Event::PaymentSent {
+ invoice_payer.handle_event(Event::PaymentSent {
payment_id, payment_preimage, payment_hash, fee_paid_msat: None
});
assert_eq!(*event_handled.borrow(), true);
#[test]
fn fails_paying_zero_value_invoice_with_amount() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let payer = TestPayer::new();
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(0));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(0));
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = invoice(payment_preimage);
#[test]
fn pays_pubkey_with_amount() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let pubkey = pubkey();
let payment_preimage = PaymentPreimage([1; 32]);
let payer = TestPayer::new()
.expect_send(Amount::Spontaneous(final_value_msat))
.expect_send(Amount::OnRetry(final_value_msat));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new());
+ let router = TestRouter::new(TestScorer::new());
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(2));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(2));
let payment_id = Some(invoice_payer.pay_pubkey(
pubkey, payment_preimage, final_value_msat, final_cltv_expiry_delta
payment_id,
payment_hash,
network_update: None,
- rejected_by_dest: false,
+ payment_failed_permanently: false,
all_paths_failed: false,
path: vec![],
short_channel_id: None,
retry: Some(retry),
};
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event);
assert_eq!(*event_handled.borrow(), false);
assert_eq!(*payer.attempts.borrow(), 2);
- invoice_payer.handle_event(&Event::PaymentSent {
+ invoice_payer.handle_event(Event::PaymentSent {
payment_id, payment_preimage, payment_hash, fee_paid_msat: None
});
assert_eq!(*event_handled.borrow(), true);
#[test]
fn scores_failed_channel() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = invoice(payment_preimage);
let payer = TestPayer::new()
.expect_send(Amount::ForInvoice(final_value_msat))
.expect_send(Amount::OnRetry(final_value_msat / 2));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new().expect(TestResult::PaymentFailure {
+ let scorer = TestScorer::new().expect(TestResult::PaymentFailure {
path: path.clone(), short_channel_id: path[0].short_channel_id,
- }));
+ });
+ let router = TestRouter::new(scorer);
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(2));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(2));
let payment_id = Some(invoice_payer.pay_invoice(&invoice).unwrap());
let event = Event::PaymentPathFailed {
payment_id,
payment_hash,
network_update: None,
- rejected_by_dest: false,
+ payment_failed_permanently: false,
all_paths_failed: false,
path,
short_channel_id,
retry: Some(TestRouter::retry_for_invoice(&invoice)),
};
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event);
}
#[test]
fn scores_successful_channels() {
let event_handled = core::cell::RefCell::new(false);
- let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
let payment_preimage = PaymentPreimage([1; 32]);
let invoice = invoice(payment_preimage);
// Expect that scorer is given short_channel_id upon handling the event.
let payer = TestPayer::new().expect_send(Amount::ForInvoice(final_value_msat));
- let router = TestRouter {};
- let scorer = RefCell::new(TestScorer::new()
+ let scorer = TestScorer::new()
.expect(TestResult::PaymentSuccess { path: route.paths[0].clone() })
- .expect(TestResult::PaymentSuccess { path: route.paths[1].clone() })
- );
+ .expect(TestResult::PaymentSuccess { path: route.paths[1].clone() });
+ let router = TestRouter::new(scorer);
let logger = TestLogger::new();
let invoice_payer =
- InvoicePayer::new(&payer, router, &scorer, &logger, event_handler, Retry::Attempts(2));
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(2));
let payment_id = invoice_payer.pay_invoice(&invoice).unwrap();
let event = Event::PaymentPathSuccessful {
payment_id, payment_hash, path: route.paths[0].clone()
};
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event);
let event = Event::PaymentPathSuccessful {
payment_id, payment_hash, path: route.paths[1].clone()
};
- invoice_payer.handle_event(&event);
+ invoice_payer.handle_event(event);
}
- struct TestRouter;
+ #[test]
+ fn considers_inflight_htlcs_between_invoice_payments() {
+ let event_handled = core::cell::RefCell::new(false);
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
+
+ let payment_preimage = PaymentPreimage([1; 32]);
+ let payment_invoice = invoice(payment_preimage);
+ let final_value_msat = payment_invoice.amount_milli_satoshis().unwrap();
+
+ let payer = TestPayer::new()
+ .expect_send(Amount::ForInvoice(final_value_msat))
+ .expect_send(Amount::ForInvoice(final_value_msat));
+ let scorer = TestScorer::new()
+ // 1st invoice, 1st path
+ .expect_usage(ChannelUsage { amount_msat: 64, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ .expect_usage(ChannelUsage { amount_msat: 84, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ .expect_usage(ChannelUsage { amount_msat: 94, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ // 1st invoice, 2nd path
+ .expect_usage(ChannelUsage { amount_msat: 64, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ .expect_usage(ChannelUsage { amount_msat: 74, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ // 2nd invoice, 1st path
+ .expect_usage(ChannelUsage { amount_msat: 64, inflight_htlc_msat: 64, effective_capacity: EffectiveCapacity::Unknown } )
+ .expect_usage(ChannelUsage { amount_msat: 84, inflight_htlc_msat: 84, effective_capacity: EffectiveCapacity::Unknown } )
+ .expect_usage(ChannelUsage { amount_msat: 94, inflight_htlc_msat: 94, effective_capacity: EffectiveCapacity::Unknown } )
+ // 2nd invoice, 2nd path
+ .expect_usage(ChannelUsage { amount_msat: 64, inflight_htlc_msat: 64, effective_capacity: EffectiveCapacity::Unknown } )
+ .expect_usage(ChannelUsage { amount_msat: 74, inflight_htlc_msat: 74, effective_capacity: EffectiveCapacity::Unknown } );
+ let router = TestRouter::new(scorer);
+ let logger = TestLogger::new();
+ let invoice_payer =
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(0));
+
+ // Make first invoice payment.
+ invoice_payer.pay_invoice(&payment_invoice).unwrap();
+
+ // Let's pay a second invoice that will be using the same path. This should trigger the
+ // assertions that expect `ChannelUsage` values of the first invoice payment that is still
+ // in-flight.
+ let payment_preimage_2 = PaymentPreimage([2; 32]);
+ let payment_invoice_2 = invoice(payment_preimage_2);
+ invoice_payer.pay_invoice(&payment_invoice_2).unwrap();
+ }
+
+ #[test]
+ fn considers_inflight_htlcs_between_retries() {
+ // First, let's just send a payment through, but only make sure one of the path completes
+ let event_handled = core::cell::RefCell::new(false);
+ let event_handler = |_: Event| { *event_handled.borrow_mut() = true; };
+
+ let payment_preimage = PaymentPreimage([1; 32]);
+ let payment_invoice = invoice(payment_preimage);
+ let payment_hash = PaymentHash(payment_invoice.payment_hash().clone().into_inner());
+ let final_value_msat = payment_invoice.amount_milli_satoshis().unwrap();
+
+ let payer = TestPayer::new()
+ .expect_send(Amount::ForInvoice(final_value_msat))
+ .expect_send(Amount::OnRetry(final_value_msat / 2))
+ .expect_send(Amount::OnRetry(final_value_msat / 4));
+ let final_value_msat = payment_invoice.amount_milli_satoshis().unwrap();
+ let scorer = TestScorer::new()
+ // 1st invoice, 1st path
+ .expect_usage(ChannelUsage { amount_msat: 64, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ .expect_usage(ChannelUsage { amount_msat: 84, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ .expect_usage(ChannelUsage { amount_msat: 94, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ // 1st invoice, 2nd path
+ .expect_usage(ChannelUsage { amount_msat: 64, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ .expect_usage(ChannelUsage { amount_msat: 74, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ // Retry 1, 1st path
+ .expect_usage(ChannelUsage { amount_msat: 32, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ .expect_usage(ChannelUsage { amount_msat: 52, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ .expect_usage(ChannelUsage { amount_msat: 62, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ // Retry 1, 2nd path
+ .expect_usage(ChannelUsage { amount_msat: 32, inflight_htlc_msat: 64, effective_capacity: EffectiveCapacity::Unknown } )
+ .expect_usage(ChannelUsage { amount_msat: 42, inflight_htlc_msat: 64 + 10, effective_capacity: EffectiveCapacity::Unknown } )
+ // Retry 2, 1st path
+ .expect_usage(ChannelUsage { amount_msat: 16, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ .expect_usage(ChannelUsage { amount_msat: 36, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ .expect_usage(ChannelUsage { amount_msat: 46, inflight_htlc_msat: 0, effective_capacity: EffectiveCapacity::Unknown } )
+ // Retry 2, 2nd path
+ .expect_usage(ChannelUsage { amount_msat: 16, inflight_htlc_msat: 64 + 32, effective_capacity: EffectiveCapacity::Unknown } )
+ .expect_usage(ChannelUsage { amount_msat: 26, inflight_htlc_msat: 74 + 32 + 10, effective_capacity: EffectiveCapacity::Unknown } );
+ let router = TestRouter::new(scorer);
+ let logger = TestLogger::new();
+ let invoice_payer =
+ InvoicePayer::new(&payer, router, &logger, event_handler, Retry::Attempts(2));
+
+ // Fail 1st path, leave 2nd path inflight
+ let payment_id = Some(invoice_payer.pay_invoice(&payment_invoice).unwrap());
+ invoice_payer.payer.fail_path(&TestRouter::path_for_value(final_value_msat));
+ invoice_payer.handle_event(Event::PaymentPathFailed {
+ payment_id,
+ payment_hash,
+ network_update: None,
+ payment_failed_permanently: false,
+ all_paths_failed: false,
+ path: TestRouter::path_for_value(final_value_msat),
+ short_channel_id: None,
+ retry: Some(TestRouter::retry_for_invoice(&payment_invoice)),
+ });
+
+ // Fails again the 1st path of our retry
+ invoice_payer.payer.fail_path(&TestRouter::path_for_value(final_value_msat / 2));
+ invoice_payer.handle_event(Event::PaymentPathFailed {
+ payment_id,
+ payment_hash,
+ network_update: None,
+ payment_failed_permanently: false,
+ all_paths_failed: false,
+ path: TestRouter::path_for_value(final_value_msat / 2),
+ short_channel_id: None,
+ retry: Some(RouteParameters {
+ final_value_msat: final_value_msat / 4,
+ ..TestRouter::retry_for_invoice(&payment_invoice)
+ }),
+ });
+ }
+
+ struct TestRouter {
+ scorer: RefCell<TestScorer>,
+ }
impl TestRouter {
+ fn new(scorer: TestScorer) -> Self {
+ TestRouter { scorer: RefCell::new(scorer) }
+ }
+
fn route_for_value(final_value_msat: u64) -> Route {
Route {
paths: vec![
- vec![RouteHop {
- pubkey: PublicKey::from_slice(&hex::decode("02eec7245d6b7d2ccb30380bfbe2a3648cd7a942653f5aa340edcea1f283686619").unwrap()[..]).unwrap(),
- channel_features: ChannelFeatures::empty(),
- node_features: NodeFeatures::empty(),
- short_channel_id: 0, fee_msat: final_value_msat / 2, cltv_expiry_delta: 144
- }],
- vec![RouteHop {
- pubkey: PublicKey::from_slice(&hex::decode("0324653eac434488002cc06bbfb7f10fe18991e35f9fe4302dbea6d2353dc0ab1c").unwrap()[..]).unwrap(),
- channel_features: ChannelFeatures::empty(),
- node_features: NodeFeatures::empty(),
- short_channel_id: 1, fee_msat: final_value_msat / 2, cltv_expiry_delta: 144
- }],
+ vec![
+ RouteHop {
+ pubkey: PublicKey::from_slice(&hex::decode("02eec7245d6b7d2ccb30380bfbe2a3648cd7a942653f5aa340edcea1f283686619").unwrap()[..]).unwrap(),
+ channel_features: ChannelFeatures::empty(),
+ node_features: NodeFeatures::empty(),
+ short_channel_id: 0,
+ fee_msat: 10,
+ cltv_expiry_delta: 0
+ },
+ RouteHop {
+ pubkey: PublicKey::from_slice(&hex::decode("0324653eac434488002cc06bbfb7f10fe18991e35f9fe4302dbea6d2353dc0ab1c").unwrap()[..]).unwrap(),
+ channel_features: ChannelFeatures::empty(),
+ node_features: NodeFeatures::empty(),
+ short_channel_id: 1,
+ fee_msat: 20,
+ cltv_expiry_delta: 0
+ },
+ RouteHop {
+ pubkey: PublicKey::from_slice(&hex::decode("027f31ebc5462c1fdce1b737ecff52d37d75dea43ce11c74d25aa297165faa2007").unwrap()[..]).unwrap(),
+ channel_features: ChannelFeatures::empty(),
+ node_features: NodeFeatures::empty(),
+ short_channel_id: 2,
+ fee_msat: final_value_msat / 2,
+ cltv_expiry_delta: 0
+ },
+ ],
+ vec![
+ RouteHop {
+ pubkey: PublicKey::from_slice(&hex::decode("029e03a901b85534ff1e92c43c74431f7ce72046060fcf7a95c37e148f78c77255").unwrap()[..]).unwrap(),
+ channel_features: ChannelFeatures::empty(),
+ node_features: NodeFeatures::empty(),
+ short_channel_id: 3,
+ fee_msat: 10,
+ cltv_expiry_delta: 144
+ },
+ RouteHop {
+ pubkey: PublicKey::from_slice(&hex::decode("027f31ebc5462c1fdce1b737ecff52d37d75dea43ce11c74d25aa297165faa2007").unwrap()[..]).unwrap(),
+ channel_features: ChannelFeatures::empty(),
+ node_features: NodeFeatures::empty(),
+ short_channel_id: 4,
+ fee_msat: final_value_msat / 2,
+ cltv_expiry_delta: 144
+ }
+ ],
],
payment_params: None,
}
}
}
- impl<S: Score> Router<S> for TestRouter {
+ impl Router for TestRouter {
fn find_route(
- &self, _payer: &PublicKey, route_params: &RouteParameters, _payment_hash: &PaymentHash,
- _first_hops: Option<&[&ChannelDetails]>, _scorer: &S
+ &self, payer: &PublicKey, route_params: &RouteParameters,
+ _first_hops: Option<&[&ChannelDetails]>, inflight_htlcs: InFlightHtlcs
) -> Result<Route, LightningError> {
+ // Simulate calling the Scorer just as you would in find_route
+ let route = Self::route_for_value(route_params.final_value_msat);
+ let mut locked_scorer = self.scorer.lock();
+ let scorer = ScorerAccountingForInFlightHtlcs::new(locked_scorer.deref_mut(), inflight_htlcs);
+ for path in route.paths {
+ let mut aggregate_msat = 0u64;
+ for (idx, hop) in path.iter().rev().enumerate() {
+ aggregate_msat += hop.fee_msat;
+ let usage = ChannelUsage {
+ amount_msat: aggregate_msat,
+ inflight_htlc_msat: 0,
+ effective_capacity: EffectiveCapacity::Unknown,
+ };
+
+ // Since the path is reversed, the last element in our iteration is the first
+ // hop.
+ if idx == path.len() - 1 {
+ scorer.channel_penalty_msat(hop.short_channel_id, &NodeId::from_pubkey(payer), &NodeId::from_pubkey(&hop.pubkey), usage);
+ } else {
+ scorer.channel_penalty_msat(hop.short_channel_id, &NodeId::from_pubkey(&path[idx + 1].pubkey), &NodeId::from_pubkey(&hop.pubkey), usage);
+ }
+ }
+ }
+
Ok(Route {
payment_params: Some(route_params.payment_params.clone()), ..Self::route_for_value(route_params.final_value_msat)
})
}
+
+ fn notify_payment_path_failed(&self, path: &[&RouteHop], short_channel_id: u64) {
+ self.scorer.lock().payment_path_failed(path, short_channel_id);
+ }
+
+ fn notify_payment_path_successful(&self, path: &[&RouteHop]) {
+ self.scorer.lock().payment_path_successful(path);
+ }
+
+ fn notify_payment_probe_successful(&self, path: &[&RouteHop]) {
+ self.scorer.lock().probe_successful(path);
+ }
+
+ fn notify_payment_probe_failed(&self, path: &[&RouteHop], short_channel_id: u64) {
+ self.scorer.lock().probe_failed(path, short_channel_id);
+ }
}
struct FailingRouter;
- impl<S: Score> Router<S> for FailingRouter {
+ impl Router for FailingRouter {
fn find_route(
- &self, _payer: &PublicKey, _params: &RouteParameters, _payment_hash: &PaymentHash,
- _first_hops: Option<&[&ChannelDetails]>, _scorer: &S
+ &self, _payer: &PublicKey, _params: &RouteParameters, _first_hops: Option<&[&ChannelDetails]>,
+ _inflight_htlcs: InFlightHtlcs,
) -> Result<Route, LightningError> {
Err(LightningError { err: String::new(), action: ErrorAction::IgnoreError })
}
+
+ fn notify_payment_path_failed(&self, _path: &[&RouteHop], _short_channel_id: u64) {}
+
+ fn notify_payment_path_successful(&self, _path: &[&RouteHop]) {}
+
+ fn notify_payment_probe_successful(&self, _path: &[&RouteHop]) {}
+
+ fn notify_payment_probe_failed(&self, _path: &[&RouteHop], _short_channel_id: u64) {}
}
struct TestScorer {
- expectations: Option<VecDeque<TestResult>>,
+ event_expectations: Option<VecDeque<TestResult>>,
+ scorer_expectations: RefCell<Option<VecDeque<ChannelUsage>>>,
}
#[derive(Debug)]
impl TestScorer {
fn new() -> Self {
Self {
- expectations: None,
+ event_expectations: None,
+ scorer_expectations: RefCell::new(None),
}
}
fn expect(mut self, expectation: TestResult) -> Self {
- self.expectations.get_or_insert_with(|| VecDeque::new()).push_back(expectation);
+ self.event_expectations.get_or_insert_with(|| VecDeque::new()).push_back(expectation);
+ self
+ }
+
+ fn expect_usage(self, expectation: ChannelUsage) -> Self {
+ self.scorer_expectations.borrow_mut().get_or_insert_with(|| VecDeque::new()).push_back(expectation);
self
}
}
#[cfg(c_bindings)]
impl lightning::util::ser::Writeable for TestScorer {
- fn write<W: lightning::util::ser::Writer>(&self, _: &mut W) -> Result<(), std::io::Error> { unreachable!(); }
+ fn write<W: lightning::util::ser::Writer>(&self, _: &mut W) -> Result<(), lightning::io::Error> { unreachable!(); }
}
impl Score for TestScorer {
fn channel_penalty_msat(
- &self, _short_channel_id: u64, _source: &NodeId, _target: &NodeId, _usage: ChannelUsage
- ) -> u64 { 0 }
+ &self, _short_channel_id: u64, _source: &NodeId, _target: &NodeId, usage: ChannelUsage
+ ) -> u64 {
+ if let Some(scorer_expectations) = self.scorer_expectations.borrow_mut().as_mut() {
+ match scorer_expectations.pop_front() {
+ Some(expectation) => {
+ assert_eq!(expectation.amount_msat, usage.amount_msat);
+ assert_eq!(expectation.inflight_htlc_msat, usage.inflight_htlc_msat);
+ },
+ None => {},
+ }
+ }
+ 0
+ }
fn payment_path_failed(&mut self, actual_path: &[&RouteHop], actual_short_channel_id: u64) {
- if let Some(expectations) = &mut self.expectations {
+ if let Some(expectations) = &mut self.event_expectations {
match expectations.pop_front() {
Some(TestResult::PaymentFailure { path, short_channel_id }) => {
assert_eq!(actual_path, &path.iter().collect::<Vec<_>>()[..]);
Some(TestResult::PaymentSuccess { path }) => {
panic!("Unexpected successful payment path: {:?}", path)
},
- None => panic!("Unexpected payment_path_failed call: {:?}", actual_path),
+ None => panic!("Unexpected notify_payment_path_failed call: {:?}", actual_path),
}
}
}
fn payment_path_successful(&mut self, actual_path: &[&RouteHop]) {
- if let Some(expectations) = &mut self.expectations {
+ if let Some(expectations) = &mut self.event_expectations {
match expectations.pop_front() {
Some(TestResult::PaymentFailure { path, .. }) => {
panic!("Unexpected payment path failure: {:?}", path)
Some(TestResult::PaymentSuccess { path }) => {
assert_eq!(actual_path, &path.iter().collect::<Vec<_>>()[..]);
},
- None => panic!("Unexpected payment_path_successful call: {:?}", actual_path),
+ None => panic!("Unexpected notify_payment_path_successful call: {:?}", actual_path),
}
}
}
fn probe_failed(&mut self, actual_path: &[&RouteHop], _: u64) {
- if let Some(expectations) = &mut self.expectations {
+ if let Some(expectations) = &mut self.event_expectations {
match expectations.pop_front() {
Some(TestResult::PaymentFailure { path, .. }) => {
panic!("Unexpected failed payment path: {:?}", path)
Some(TestResult::PaymentSuccess { path }) => {
panic!("Unexpected successful payment path: {:?}", path)
},
- None => panic!("Unexpected payment_path_failed call: {:?}", actual_path),
+ None => panic!("Unexpected notify_payment_path_failed call: {:?}", actual_path),
}
}
}
fn probe_successful(&mut self, actual_path: &[&RouteHop]) {
- if let Some(expectations) = &mut self.expectations {
+ if let Some(expectations) = &mut self.event_expectations {
match expectations.pop_front() {
Some(TestResult::PaymentFailure { path, .. }) => {
panic!("Unexpected payment path failure: {:?}", path)
Some(TestResult::PaymentSuccess { path }) => {
panic!("Unexpected successful payment path: {:?}", path)
},
- None => panic!("Unexpected payment_path_successful call: {:?}", actual_path),
+ None => panic!("Unexpected notify_payment_path_successful call: {:?}", actual_path),
}
}
}
return;
}
- if let Some(expectations) = &self.expectations {
- if !expectations.is_empty() {
- panic!("Unsatisfied scorer expectations: {:?}", expectations);
+ if let Some(event_expectations) = &self.event_expectations {
+ if !event_expectations.is_empty() {
+ panic!("Unsatisfied event expectations: {:?}", event_expectations);
+ }
+ }
+
+ if let Some(scorer_expectations) = self.scorer_expectations.borrow().as_ref() {
+ if !scorer_expectations.is_empty() {
+ panic!("Unsatisfied scorer expectations: {:?}", scorer_expectations)
}
}
}
expectations: core::cell::RefCell<VecDeque<Amount>>,
attempts: core::cell::RefCell<usize>,
failing_on_attempt: core::cell::RefCell<HashMap<usize, PaymentSendFailure>>,
+ inflight_htlcs_paths: core::cell::RefCell<Vec<Vec<RouteHop>>>,
}
#[derive(Clone, Debug, PartialEq, Eq)]
expectations: core::cell::RefCell::new(VecDeque::new()),
attempts: core::cell::RefCell::new(0),
failing_on_attempt: core::cell::RefCell::new(HashMap::new()),
+ inflight_htlcs_paths: core::cell::RefCell::new(Vec::new()),
}
}
}
fn fails_on_attempt(self, attempt: usize) -> Self {
- let failure = PaymentSendFailure::ParameterError(APIError::MonitorUpdateFailed);
+ let failure = PaymentSendFailure::ParameterError(APIError::MonitorUpdateInProgress);
self.fails_with(failure, OnAttempt(attempt))
}
- fn fails_with_partial_failure(self, retry: RouteParameters, attempt: OnAttempt) -> Self {
+ fn fails_with_partial_failure(self, retry: RouteParameters, attempt: OnAttempt, results: Option<Vec<Result<(), APIError>>>) -> Self {
self.fails_with(PaymentSendFailure::PartialFailure {
- results: vec![],
+ results: results.unwrap_or(vec![]),
failed_paths_retry: Some(retry),
payment_id: PaymentId([1; 32]),
}, attempt)
self
}
- fn check_attempts(&self) -> Result<PaymentId, PaymentSendFailure> {
+ fn check_attempts(&self) -> Result<(), PaymentSendFailure> {
let mut attempts = self.attempts.borrow_mut();
*attempts += 1;
match self.failing_on_attempt.borrow_mut().remove(&*attempts) {
Some(failure) => Err(failure),
- None => Ok(PaymentId([1; 32])),
+ None => Ok(())
}
}
panic!("Unexpected amount: {:?}", actual_value_msats);
}
}
+
+ fn track_inflight_htlcs(&self, route: &Route) {
+ for path in &route.paths {
+ self.inflight_htlcs_paths.borrow_mut().push(path.clone());
+ }
+ }
+
+ fn fail_path(&self, path: &Vec<RouteHop>) {
+ let path_idx = self.inflight_htlcs_paths.borrow().iter().position(|p| p == path);
+
+ if let Some(idx) = path_idx {
+ self.inflight_htlcs_paths.borrow_mut().swap_remove(idx);
+ }
+ }
}
impl Drop for TestPayer {
fn send_payment(
&self, route: &Route, _payment_hash: PaymentHash,
- _payment_secret: &Option<PaymentSecret>
- ) -> Result<PaymentId, PaymentSendFailure> {
+ _payment_secret: &Option<PaymentSecret>, _payment_id: PaymentId,
+ ) -> Result<(), PaymentSendFailure> {
self.check_value_msats(Amount::ForInvoice(route.get_total_amount()));
+ self.track_inflight_htlcs(route);
self.check_attempts()
}
fn send_spontaneous_payment(
- &self, route: &Route, _payment_preimage: PaymentPreimage,
- ) -> Result<PaymentId, PaymentSendFailure> {
+ &self, route: &Route, _payment_preimage: PaymentPreimage, _payment_id: PaymentId,
+ ) -> Result<(), PaymentSendFailure> {
self.check_value_msats(Amount::Spontaneous(route.get_total_amount()));
self.check_attempts()
}
&self, route: &Route, _payment_id: PaymentId
) -> Result<(), PaymentSendFailure> {
self.check_value_msats(Amount::OnRetry(route.get_total_amount()));
- self.check_attempts().map(|_| ())
+ self.track_inflight_htlcs(route);
+ self.check_attempts()
}
fn abandon_payment(&self, _payment_id: PaymentId) { }
+
+ fn inflight_htlcs(&self) -> InFlightHtlcs {
+ let mut inflight_htlcs = InFlightHtlcs::new();
+ for path in self.inflight_htlcs_paths.clone().into_inner() {
+ inflight_htlcs.process_path(&path, self.node_id());
+ }
+ inflight_htlcs
+ }
}
// *** Full Featured Functional Tests with a Real ChannelManager ***
struct ManualRouter(RefCell<VecDeque<Result<Route, LightningError>>>);
- impl<S: Score> Router<S> for ManualRouter {
+ impl Router for ManualRouter {
fn find_route(
- &self, _payer: &PublicKey, _params: &RouteParameters, _payment_hash: &PaymentHash,
- _first_hops: Option<&[&ChannelDetails]>, _scorer: &S
+ &self, _payer: &PublicKey, _params: &RouteParameters, _first_hops: Option<&[&ChannelDetails]>,
+ _inflight_htlcs: InFlightHtlcs
) -> Result<Route, LightningError> {
self.0.borrow_mut().pop_front().unwrap()
}
+
+ fn notify_payment_path_failed(&self, _path: &[&RouteHop], _short_channel_id: u64) {}
+
+ fn notify_payment_path_successful(&self, _path: &[&RouteHop]) {}
+
+ fn notify_payment_probe_successful(&self, _path: &[&RouteHop]) {}
+
+ fn notify_payment_probe_failed(&self, _path: &[&RouteHop], _short_channel_id: u64) {}
}
impl ManualRouter {
fn expect_find_route(&self, result: Result<Route, LightningError>) {
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None, None]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
- create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0, InitFeatures::known(), InitFeatures::known());
- create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0, InitFeatures::known(), InitFeatures::known());
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0, channelmanager::provided_init_features(), channelmanager::provided_init_features());
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0, channelmanager::provided_init_features(), channelmanager::provided_init_features());
let chans = nodes[0].node.list_usable_channels();
let mut route = Route {
paths: vec![
vec![RouteHop {
pubkey: nodes[1].node.get_our_node_id(),
- node_features: NodeFeatures::known(),
+ node_features: channelmanager::provided_node_features(),
short_channel_id: chans[0].short_channel_id.unwrap(),
- channel_features: ChannelFeatures::known(),
+ channel_features: channelmanager::provided_channel_features(),
fee_msat: 10_000,
cltv_expiry_delta: 100,
}],
vec![RouteHop {
pubkey: nodes[1].node.get_our_node_id(),
- node_features: NodeFeatures::known(),
+ node_features: channelmanager::provided_node_features(),
short_channel_id: chans[1].short_channel_id.unwrap(),
- channel_features: ChannelFeatures::known(),
+ channel_features: channelmanager::provided_channel_features(),
fee_msat: 100_000_001, // Our default max-HTLC-value is 10% of the channel value, which this is one more than
cltv_expiry_delta: 100,
}],
route.paths[1][0].fee_msat = 50_000_000;
router.expect_find_route(Ok(route.clone()));
- let event_handler = |_: &_| { panic!(); };
- let scorer = RefCell::new(TestScorer::new());
- let invoice_payer = InvoicePayer::new(nodes[0].node, router, &scorer, nodes[0].logger, event_handler, Retry::Attempts(1));
+ let event_handler = |_: Event| { panic!(); };
+ let invoice_payer = InvoicePayer::new(nodes[0].node, router, nodes[0].logger, event_handler, Retry::Attempts(1));
assert!(invoice_payer.pay_invoice(&create_invoice_from_channelmanager_and_duration_since_epoch(
- &nodes[1].node, nodes[1].keys_manager, Currency::Bitcoin, Some(100_010_000), "Invoice".to_string(),
- duration_since_epoch(), 3600).unwrap())
+ &nodes[1].node, nodes[1].keys_manager, nodes[1].logger, Currency::Bitcoin,
+ Some(100_010_000), "Invoice".to_string(), duration_since_epoch(), 3600).unwrap())
.is_ok());
let htlc_msgs = nodes[0].node.get_and_clear_pending_msg_events();
assert_eq!(htlc_msgs.len(), 2);
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None, None]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
- create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0, InitFeatures::known(), InitFeatures::known());
- create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0, InitFeatures::known(), InitFeatures::known());
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0, channelmanager::provided_init_features(), channelmanager::provided_init_features());
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0, channelmanager::provided_init_features(), channelmanager::provided_init_features());
let chans = nodes[0].node.list_usable_channels();
let mut route = Route {
paths: vec![
vec![RouteHop {
pubkey: nodes[1].node.get_our_node_id(),
- node_features: NodeFeatures::known(),
+ node_features: channelmanager::provided_node_features(),
short_channel_id: chans[0].short_channel_id.unwrap(),
- channel_features: ChannelFeatures::known(),
+ channel_features: channelmanager::provided_channel_features(),
fee_msat: 100_000_001, // Our default max-HTLC-value is 10% of the channel value, which this is one more than
cltv_expiry_delta: 100,
}],
route.paths[1][0].fee_msat = 50_000_001;
router.expect_find_route(Ok(route.clone()));
- let event_handler = |_: &_| { panic!(); };
- let scorer = RefCell::new(TestScorer::new());
- let invoice_payer = InvoicePayer::new(nodes[0].node, router, &scorer, nodes[0].logger, event_handler, Retry::Attempts(1));
+ let event_handler = |_: Event| { panic!(); };
+ let invoice_payer = InvoicePayer::new(nodes[0].node, router, nodes[0].logger, event_handler, Retry::Attempts(1));
assert!(invoice_payer.pay_invoice(&create_invoice_from_channelmanager_and_duration_since_epoch(
- &nodes[1].node, nodes[1].keys_manager, Currency::Bitcoin, Some(100_010_000), "Invoice".to_string(),
- duration_since_epoch(), 3600).unwrap())
+ &nodes[1].node, nodes[1].keys_manager, nodes[1].logger, Currency::Bitcoin,
+ Some(100_010_000), "Invoice".to_string(), duration_since_epoch(), 3600).unwrap())
.is_ok());
let htlc_msgs = nodes[0].node.get_and_clear_pending_msg_events();
assert_eq!(htlc_msgs.len(), 2);
let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
- let chan_1_scid = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 0, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
- let chan_2_scid = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 0, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
+ let chan_1_scid = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 0, channelmanager::provided_init_features(), channelmanager::provided_init_features()).0.contents.short_channel_id;
+ let chan_2_scid = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 0, channelmanager::provided_init_features(), channelmanager::provided_init_features()).0.contents.short_channel_id;
let mut route = Route {
paths: vec![
vec![RouteHop {
pubkey: nodes[1].node.get_our_node_id(),
- node_features: NodeFeatures::known(),
+ node_features: channelmanager::provided_node_features(),
short_channel_id: chan_1_scid,
- channel_features: ChannelFeatures::known(),
+ channel_features: channelmanager::provided_channel_features(),
fee_msat: 0,
cltv_expiry_delta: 100,
}, RouteHop {
pubkey: nodes[2].node.get_our_node_id(),
- node_features: NodeFeatures::known(),
+ node_features: channelmanager::provided_node_features(),
short_channel_id: chan_2_scid,
- channel_features: ChannelFeatures::known(),
+ channel_features: channelmanager::provided_channel_features(),
fee_msat: 100_000_000,
cltv_expiry_delta: 100,
}],
vec![RouteHop {
pubkey: nodes[1].node.get_our_node_id(),
- node_features: NodeFeatures::known(),
+ node_features: channelmanager::provided_node_features(),
short_channel_id: chan_1_scid,
- channel_features: ChannelFeatures::known(),
+ channel_features: channelmanager::provided_channel_features(),
fee_msat: 0,
cltv_expiry_delta: 100,
}, RouteHop {
pubkey: nodes[2].node.get_our_node_id(),
- node_features: NodeFeatures::known(),
+ node_features: channelmanager::provided_node_features(),
short_channel_id: chan_2_scid,
- channel_features: ChannelFeatures::known(),
+ channel_features: channelmanager::provided_channel_features(),
fee_msat: 100_000_000,
cltv_expiry_delta: 100,
}]
route.paths.remove(1);
router.expect_find_route(Ok(route.clone()));
- let expected_events: RefCell<VecDeque<&dyn Fn(&Event)>> = RefCell::new(VecDeque::new());
- let event_handler = |event: &Event| {
+ let expected_events: RefCell<VecDeque<&dyn Fn(Event)>> = RefCell::new(VecDeque::new());
+ let event_handler = |event: Event| {
let event_checker = expected_events.borrow_mut().pop_front().unwrap();
event_checker(event);
};
- let scorer = RefCell::new(TestScorer::new());
- let invoice_payer = InvoicePayer::new(nodes[0].node, router, &scorer, nodes[0].logger, event_handler, Retry::Attempts(1));
+ let invoice_payer = InvoicePayer::new(nodes[0].node, router, nodes[0].logger, event_handler, Retry::Attempts(1));
assert!(invoice_payer.pay_invoice(&create_invoice_from_channelmanager_and_duration_since_epoch(
- &nodes[1].node, nodes[1].keys_manager, Currency::Bitcoin, Some(100_010_000), "Invoice".to_string(),
- duration_since_epoch(), 3600).unwrap())
+ &nodes[1].node, nodes[1].keys_manager, nodes[1].logger, Currency::Bitcoin,
+ Some(100_010_000), "Invoice".to_string(), duration_since_epoch(), 3600).unwrap())
.is_ok());
let htlc_updates = SendEvent::from_node(&nodes[0]);
check_added_monitors!(nodes[0], 1);
// `PaymentPathFailed` being passed up to the user (us, in this case). Previously, we'd
// treated this as "HTLC complete" and dropped the retry counter, causing us to retry again
// if the final HTLC failed.
- expected_events.borrow_mut().push_back(&|ev: &Event| {
- if let Event::PaymentPathFailed { rejected_by_dest, all_paths_failed, .. } = ev {
- assert!(!rejected_by_dest);
+ expected_events.borrow_mut().push_back(&|ev: Event| {
+ if let Event::PaymentPathFailed { payment_failed_permanently, all_paths_failed, .. } = ev {
+ assert!(!payment_failed_permanently);
assert!(all_paths_failed);
} else { panic!("Unexpected event"); }
});
nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &bs_fail_update.update_fail_htlcs[0]);
commitment_signed_dance!(nodes[0], nodes[1], &bs_fail_update.commitment_signed, false, true);
- expected_events.borrow_mut().push_back(&|ev: &Event| {
- if let Event::PaymentPathFailed { rejected_by_dest, all_paths_failed, .. } = ev {
- assert!(!rejected_by_dest);
+ expected_events.borrow_mut().push_back(&|ev: Event| {
+ if let Event::PaymentPathFailed { payment_failed_permanently, all_paths_failed, .. } = ev {
+ assert!(!payment_failed_permanently);
assert!(all_paths_failed);
} else { panic!("Unexpected event"); }
});
- expected_events.borrow_mut().push_back(&|ev: &Event| {
+ expected_events.borrow_mut().push_back(&|ev: Event| {
if let Event::PaymentFailed { .. } = ev {
} else { panic!("Unexpected event"); }
});
projects / rust-lightning / blobdiff