use crate::sign::{EntropySource, NodeSigner, Recipient};
use crate::events::{self, PaymentFailureReason};
use crate::ln::{PaymentHash, PaymentPreimage, PaymentSecret};
-use crate::ln::channelmanager::{ChannelDetails, EventCompletionAction, HTLCSource, IDEMPOTENCY_TIMEOUT_TICKS, PaymentId};
+use crate::ln::channelmanager::{ChannelDetails, EventCompletionAction, HTLCSource, PaymentId};
use crate::ln::onion_utils::{DecodedOnionFailure, HTLCFailReason};
+use crate::offers::invoice::Bolt12Invoice;
use crate::routing::router::{InFlightHtlcs, Path, PaymentParameters, Route, RouteParameters, Router};
use crate::util::errors::APIError;
use crate::util::logger::Logger;
use crate::prelude::*;
use crate::sync::Mutex;
+/// The number of ticks of [`ChannelManager::timer_tick_occurred`] until we time-out the idempotency
+/// of payments by [`PaymentId`]. See [`OutboundPayments::remove_stale_payments`].
+///
+/// [`ChannelManager::timer_tick_occurred`]: crate::ln::channelmanager::ChannelManager::timer_tick_occurred
+pub(crate) const IDEMPOTENCY_TIMEOUT_TICKS: u8 = 7;
+
+/// The number of ticks of [`ChannelManager::timer_tick_occurred`] until an invoice request without
+/// a response is timed out.
+///
+/// [`ChannelManager::timer_tick_occurred`]: crate::ln::channelmanager::ChannelManager::timer_tick_occurred
+const INVOICE_REQUEST_TIMEOUT_TICKS: u8 = 3;
+
/// Stores the session_priv for each part of a payment that is still pending. For versions 0.0.102
/// and later, also stores information for retrying the payment.
pub(crate) enum PendingOutboundPayment {
Legacy {
session_privs: HashSet<[u8; 32]>,
},
+ AwaitingInvoice {
+ timer_ticks_without_response: u8,
+ retry_strategy: Retry,
+ },
+ InvoiceReceived {
+ payment_hash: PaymentHash,
+ retry_strategy: Retry,
+ },
Retryable {
retry_strategy: Option<Retry>,
attempts: PaymentAttempts,
params.previously_failed_channels.push(scid);
}
}
+ fn is_awaiting_invoice(&self) -> bool {
+ match self {
+ PendingOutboundPayment::AwaitingInvoice { .. } => true,
+ _ => false,
+ }
+ }
pub(super) fn is_fulfilled(&self) -> bool {
match self {
PendingOutboundPayment::Fulfilled { .. } => true,
fn payment_hash(&self) -> Option<PaymentHash> {
match self {
PendingOutboundPayment::Legacy { .. } => None,
+ PendingOutboundPayment::AwaitingInvoice { .. } => None,
+ PendingOutboundPayment::InvoiceReceived { payment_hash, .. } => Some(*payment_hash),
PendingOutboundPayment::Retryable { payment_hash, .. } => Some(*payment_hash),
PendingOutboundPayment::Fulfilled { payment_hash, .. } => *payment_hash,
PendingOutboundPayment::Abandoned { payment_hash, .. } => Some(*payment_hash),
PendingOutboundPayment::Legacy { session_privs } |
PendingOutboundPayment::Retryable { session_privs, .. } |
PendingOutboundPayment::Fulfilled { session_privs, .. } |
- PendingOutboundPayment::Abandoned { session_privs, .. }
- => session_privs,
+ PendingOutboundPayment::Abandoned { session_privs, .. } => session_privs,
+ PendingOutboundPayment::AwaitingInvoice { .. } |
+ PendingOutboundPayment::InvoiceReceived { .. } => { debug_assert!(false); return; },
});
let payment_hash = self.payment_hash();
*self = PendingOutboundPayment::Fulfilled { session_privs, payment_hash, timer_ticks_without_htlcs: 0 };
payment_hash: *payment_hash,
reason: Some(reason)
};
+ } else if let PendingOutboundPayment::InvoiceReceived { payment_hash, .. } = self {
+ *self = PendingOutboundPayment::Abandoned {
+ session_privs: HashSet::new(),
+ payment_hash: *payment_hash,
+ reason: Some(reason)
+ };
}
}
PendingOutboundPayment::Fulfilled { session_privs, .. } |
PendingOutboundPayment::Abandoned { session_privs, .. } => {
session_privs.remove(session_priv)
- }
+ },
+ PendingOutboundPayment::AwaitingInvoice { .. } |
+ PendingOutboundPayment::InvoiceReceived { .. } => { debug_assert!(false); false },
};
if remove_res {
if let PendingOutboundPayment::Retryable { ref mut pending_amt_msat, ref mut pending_fee_msat, .. } = self {
PendingOutboundPayment::Legacy { session_privs } |
PendingOutboundPayment::Retryable { session_privs, .. } => {
session_privs.insert(session_priv)
- }
+ },
+ PendingOutboundPayment::AwaitingInvoice { .. } |
+ PendingOutboundPayment::InvoiceReceived { .. } => { debug_assert!(false); false },
PendingOutboundPayment::Fulfilled { .. } => false,
PendingOutboundPayment::Abandoned { .. } => false,
};
PendingOutboundPayment::Fulfilled { session_privs, .. } |
PendingOutboundPayment::Abandoned { session_privs, .. } => {
session_privs.len()
- }
+ },
+ PendingOutboundPayment::AwaitingInvoice { .. } => 0,
+ PendingOutboundPayment::InvoiceReceived { .. } => 0,
}
}
}
/// Each attempt may be multiple HTLCs along multiple paths if the router decides to split up a
/// retry, and may retry multiple failed HTLCs at once if they failed around the same time and
/// were retried along a route from a single call to [`Router::find_route_with_id`].
- Attempts(usize),
+ Attempts(u32),
#[cfg(not(feature = "no-std"))]
/// Time elapsed before abandoning retries for a payment. At least one attempt at payment is made;
/// see [`PaymentParameters::expiry_time`] to avoid any attempt at payment after a specific time.
Timeout(core::time::Duration),
}
+#[cfg(feature = "no-std")]
+impl_writeable_tlv_based_enum!(Retry,
+ ;
+ (0, Attempts)
+);
+
+#[cfg(not(feature = "no-std"))]
+impl_writeable_tlv_based_enum!(Retry,
+ ;
+ (0, Attempts),
+ (2, Timeout)
+);
+
impl Retry {
pub(crate) fn is_retryable_now(&self, attempts: &PaymentAttempts) -> bool {
match (self, attempts) {
pub(crate) struct PaymentAttemptsUsingTime<T: Time> {
/// This count will be incremented only after the result of the attempt is known. When it's 0,
/// it means the result of the first attempt is not known yet.
- pub(crate) count: usize,
+ pub(crate) count: u32,
/// This field is only used when retry is `Retry::Timeout` which is only build with feature std
#[cfg(not(feature = "no-std"))]
first_attempted_at: T,
/// is in, see the description of individual enum states for more.
///
/// [`ChannelManager::send_payment_with_route`]: crate::ln::channelmanager::ChannelManager::send_payment_with_route
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, PartialEq, Eq)]
pub enum PaymentSendFailure {
/// A parameter which was passed to send_payment was invalid, preventing us from attempting to
/// send the payment at all.
},
}
+/// An error when attempting to pay a BOLT 12 invoice.
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub(super) enum Bolt12PaymentError {
+ /// The invoice was not requested.
+ UnexpectedInvoice,
+ /// Payment for an invoice with the corresponding [`PaymentId`] was already initiated.
+ DuplicateInvoice,
+}
+
+/// Indicates that we failed to send a payment probe. Further errors may be surfaced later via
+/// [`Event::ProbeFailed`].
+///
+/// [`Event::ProbeFailed`]: crate::events::Event::ProbeFailed
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub enum ProbeSendFailure {
+ /// We were unable to find a route to the destination.
+ RouteNotFound,
+ /// We failed to send the payment probes.
+ SendingFailed(PaymentSendFailure),
+}
+
/// Information which is provided, encrypted, to the payment recipient when sending HTLCs.
///
/// This should generally be constructed with data communicated to us from the recipient (via a
}
}
+ #[allow(unused)]
+ pub(super) fn send_payment_for_bolt12_invoice<R: Deref, ES: Deref, NS: Deref, IH, SP, L: Deref>(
+ &self, invoice: &Bolt12Invoice, payment_id: PaymentId, router: &R,
+ first_hops: Vec<ChannelDetails>, inflight_htlcs: IH, entropy_source: &ES, node_signer: &NS,
+ best_block_height: u32, logger: &L,
+ pending_events: &Mutex<VecDeque<(events::Event, Option<EventCompletionAction>)>>,
+ send_payment_along_path: SP,
+ ) -> Result<(), Bolt12PaymentError>
+ where
+ R::Target: Router,
+ ES::Target: EntropySource,
+ NS::Target: NodeSigner,
+ L::Target: Logger,
+ IH: Fn() -> InFlightHtlcs,
+ SP: Fn(SendAlongPathArgs) -> Result<(), APIError>,
+ {
+ let payment_hash = invoice.payment_hash();
+ match self.pending_outbound_payments.lock().unwrap().entry(payment_id) {
+ hash_map::Entry::Occupied(entry) => match entry.get() {
+ PendingOutboundPayment::AwaitingInvoice { retry_strategy, .. } => {
+ *entry.into_mut() = PendingOutboundPayment::InvoiceReceived {
+ payment_hash,
+ retry_strategy: *retry_strategy,
+ };
+ },
+ _ => return Err(Bolt12PaymentError::DuplicateInvoice),
+ },
+ hash_map::Entry::Vacant(_) => return Err(Bolt12PaymentError::UnexpectedInvoice),
+ };
+
+ let route_params = RouteParameters {
+ payment_params: PaymentParameters::from_bolt12_invoice(&invoice),
+ final_value_msat: invoice.amount_msats(),
+ };
+
+ self.find_route_and_send_payment(
+ payment_hash, payment_id, route_params, router, first_hops, &inflight_htlcs,
+ entropy_source, node_signer, best_block_height, logger, pending_events,
+ &send_payment_along_path
+ );
+
+ Ok(())
+ }
+
pub(super) fn check_retry_payments<R: Deref, ES: Deref, NS: Deref, SP, IH, FH, L: Deref>(
&self, router: &R, first_hops: FH, inflight_htlcs: IH, entropy_source: &ES, node_signer: &NS,
best_block_height: u32,
}
core::mem::drop(outbounds);
if let Some((payment_hash, payment_id, route_params)) = retry_id_route_params {
- self.retry_payment_internal(payment_hash, payment_id, route_params, router, first_hops(), &inflight_htlcs, entropy_source, node_signer, best_block_height, logger, pending_events, &send_payment_along_path)
+ self.find_route_and_send_payment(payment_hash, payment_id, route_params, router, first_hops(), &inflight_htlcs, entropy_source, node_signer, best_block_height, logger, pending_events, &send_payment_along_path)
} else { break }
}
let mut outbounds = self.pending_outbound_payments.lock().unwrap();
outbounds.retain(|pmt_id, pmt| {
let mut retain = true;
- if !pmt.is_auto_retryable_now() && pmt.remaining_parts() == 0 {
+ if !pmt.is_auto_retryable_now() && pmt.remaining_parts() == 0 && !pmt.is_awaiting_invoice() {
pmt.mark_abandoned(PaymentFailureReason::RetriesExhausted);
if let PendingOutboundPayment::Abandoned { payment_hash, reason, .. } = pmt {
pending_events.lock().unwrap().push_back((events::Event::PaymentFailed {
pub(super) fn needs_abandon(&self) -> bool {
let outbounds = self.pending_outbound_payments.lock().unwrap();
outbounds.iter().any(|(_, pmt)|
- !pmt.is_auto_retryable_now() && pmt.remaining_parts() == 0 && !pmt.is_fulfilled())
+ !pmt.is_auto_retryable_now() && pmt.remaining_parts() == 0 && !pmt.is_fulfilled() &&
+ !pmt.is_awaiting_invoice())
}
/// Errors immediately on [`RetryableSendFailure`] error conditions. Otherwise, further errors may
Ok(())
}
- fn retry_payment_internal<R: Deref, NS: Deref, ES: Deref, IH, SP, L: Deref>(
+ fn find_route_and_send_payment<R: Deref, NS: Deref, ES: Deref, IH, SP, L: Deref>(
&self, payment_hash: PaymentHash, payment_id: PaymentId, route_params: RouteParameters,
router: &R, first_hops: Vec<ChannelDetails>, inflight_htlcs: &IH, entropy_source: &ES,
node_signer: &NS, best_block_height: u32, logger: &L,
}
}
- const RETRY_OVERFLOW_PERCENTAGE: u64 = 10;
- let mut onion_session_privs = Vec::with_capacity(route.paths.len());
- for _ in 0..route.paths.len() {
- onion_session_privs.push(entropy_source.get_secure_random_bytes());
- }
-
macro_rules! abandon_with_entry {
($payment: expr, $reason: expr) => {
$payment.get_mut().mark_abandoned($reason);
}
}
}
- let (total_msat, recipient_onion, keysend_preimage) = {
+ let (total_msat, recipient_onion, keysend_preimage, onion_session_privs) = {
let mut outbounds = self.pending_outbound_payments.lock().unwrap();
match outbounds.entry(payment_id) {
hash_map::Entry::Occupied(mut payment) => {
- let res = match payment.get() {
+ match payment.get() {
PendingOutboundPayment::Retryable {
total_msat, keysend_preimage, payment_secret, payment_metadata,
custom_tlvs, pending_amt_msat, ..
} => {
+ const RETRY_OVERFLOW_PERCENTAGE: u64 = 10;
let retry_amt_msat = route.get_total_amount();
if retry_amt_msat + *pending_amt_msat > *total_msat * (100 + RETRY_OVERFLOW_PERCENTAGE) / 100 {
log_error!(logger, "retry_amt_msat of {} will put pending_amt_msat (currently: {}) more than 10% over total_payment_amt_msat of {}", retry_amt_msat, pending_amt_msat, total_msat);
abandon_with_entry!(payment, PaymentFailureReason::UnexpectedError);
return
}
- (*total_msat, RecipientOnionFields {
- payment_secret: *payment_secret,
- payment_metadata: payment_metadata.clone(),
- custom_tlvs: custom_tlvs.clone(),
- }, *keysend_preimage)
+
+ if !payment.get().is_retryable_now() {
+ log_error!(logger, "Retries exhausted for payment id {}", &payment_id);
+ abandon_with_entry!(payment, PaymentFailureReason::RetriesExhausted);
+ return
+ }
+
+ let total_msat = *total_msat;
+ let recipient_onion = RecipientOnionFields {
+ payment_secret: *payment_secret,
+ payment_metadata: payment_metadata.clone(),
+ custom_tlvs: custom_tlvs.clone(),
+ };
+ let keysend_preimage = *keysend_preimage;
+
+ let mut onion_session_privs = Vec::with_capacity(route.paths.len());
+ for _ in 0..route.paths.len() {
+ onion_session_privs.push(entropy_source.get_secure_random_bytes());
+ }
+
+ for (path, session_priv_bytes) in route.paths.iter().zip(onion_session_privs.iter()) {
+ assert!(payment.get_mut().insert(*session_priv_bytes, path));
+ }
+
+ payment.get_mut().increment_attempts();
+
+ (total_msat, recipient_onion, keysend_preimage, onion_session_privs)
},
PendingOutboundPayment::Legacy { .. } => {
log_error!(logger, "Unable to retry payments that were initially sent on LDK versions prior to 0.0.102");
return
},
+ PendingOutboundPayment::AwaitingInvoice { .. } => {
+ log_error!(logger, "Payment not yet sent");
+ return
+ },
+ PendingOutboundPayment::InvoiceReceived { payment_hash, retry_strategy } => {
+ let total_amount = route_params.final_value_msat;
+ let recipient_onion = RecipientOnionFields {
+ payment_secret: None,
+ payment_metadata: None,
+ custom_tlvs: vec![],
+ };
+ let retry_strategy = Some(*retry_strategy);
+ let payment_params = Some(route_params.payment_params.clone());
+ let (retryable_payment, onion_session_privs) = self.create_pending_payment(
+ *payment_hash, recipient_onion.clone(), None, &route,
+ retry_strategy, payment_params, entropy_source, best_block_height
+ );
+ *payment.into_mut() = retryable_payment;
+ (total_amount, recipient_onion, None, onion_session_privs)
+ },
PendingOutboundPayment::Fulfilled { .. } => {
log_error!(logger, "Payment already completed");
return
log_error!(logger, "Payment already abandoned (with some HTLCs still pending)");
return
},
- };
- if !payment.get().is_retryable_now() {
- log_error!(logger, "Retries exhausted for payment id {}", &payment_id);
- abandon_with_entry!(payment, PaymentFailureReason::RetriesExhausted);
- return
- }
- payment.get_mut().increment_attempts();
- for (path, session_priv_bytes) in route.paths.iter().zip(onion_session_privs.iter()) {
- assert!(payment.get_mut().insert(*session_priv_bytes, path));
}
- res
},
hash_map::Entry::Vacant(_) => {
log_error!(logger, "Payment with ID {} not found", &payment_id);
match err {
PaymentSendFailure::AllFailedResendSafe(errs) => {
Self::push_path_failed_evs_and_scids(payment_id, payment_hash, &mut route_params, route.paths, errs.into_iter().map(|e| Err(e)), logger, pending_events);
- self.retry_payment_internal(payment_hash, payment_id, route_params, router, first_hops, inflight_htlcs, entropy_source, node_signer, best_block_height, logger, pending_events, send_payment_along_path);
+ self.find_route_and_send_payment(payment_hash, payment_id, route_params, router, first_hops, inflight_htlcs, entropy_source, node_signer, best_block_height, logger, pending_events, send_payment_along_path);
},
PaymentSendFailure::PartialFailure { failed_paths_retry: Some(mut retry), results, .. } => {
Self::push_path_failed_evs_and_scids(payment_id, payment_hash, &mut retry, route.paths, results.into_iter(), logger, pending_events);
// Some paths were sent, even if we failed to send the full MPP value our recipient may
// misbehave and claim the funds, at which point we have to consider the payment sent, so
// return `Ok()` here, ignoring any retry errors.
- self.retry_payment_internal(payment_hash, payment_id, retry, router, first_hops, inflight_htlcs, entropy_source, node_signer, best_block_height, logger, pending_events, send_payment_along_path);
+ self.find_route_and_send_payment(payment_hash, payment_id, retry, router, first_hops, inflight_htlcs, entropy_source, node_signer, best_block_height, logger, pending_events, send_payment_along_path);
},
PaymentSendFailure::PartialFailure { failed_paths_retry: None, .. } => {
// This may happen if we send a payment and some paths fail, but only due to a temporary
F: Fn(SendAlongPathArgs) -> Result<(), APIError>,
{
let payment_id = PaymentId(entropy_source.get_secure_random_bytes());
+ let payment_secret = PaymentSecret(entropy_source.get_secure_random_bytes());
let payment_hash = probing_cookie_from_id(&payment_id, probing_cookie_secret);
let route = Route { paths: vec![path], route_params: None };
let onion_session_privs = self.add_new_pending_payment(payment_hash,
- RecipientOnionFields::spontaneous_empty(), payment_id, None, &route, None, None,
+ RecipientOnionFields::secret_only(payment_secret), payment_id, None, &route, None, None,
entropy_source, best_block_height)?;
match self.pay_route_internal(&route, payment_hash, RecipientOnionFields::spontaneous_empty(),
keysend_preimage: Option<PaymentPreimage>, route: &Route, retry_strategy: Option<Retry>,
payment_params: Option<PaymentParameters>, entropy_source: &ES, best_block_height: u32
) -> Result<Vec<[u8; 32]>, PaymentSendFailure> where ES::Target: EntropySource {
+ let mut pending_outbounds = self.pending_outbound_payments.lock().unwrap();
+ match pending_outbounds.entry(payment_id) {
+ hash_map::Entry::Occupied(_) => Err(PaymentSendFailure::DuplicatePayment),
+ hash_map::Entry::Vacant(entry) => {
+ let (payment, onion_session_privs) = self.create_pending_payment(
+ payment_hash, recipient_onion, keysend_preimage, route, retry_strategy,
+ payment_params, entropy_source, best_block_height
+ );
+ entry.insert(payment);
+ Ok(onion_session_privs)
+ },
+ }
+ }
+
+ fn create_pending_payment<ES: Deref>(
+ &self, payment_hash: PaymentHash, recipient_onion: RecipientOnionFields,
+ keysend_preimage: Option<PaymentPreimage>, route: &Route, retry_strategy: Option<Retry>,
+ payment_params: Option<PaymentParameters>, entropy_source: &ES, best_block_height: u32
+ ) -> (PendingOutboundPayment, Vec<[u8; 32]>)
+ where
+ ES::Target: EntropySource,
+ {
let mut onion_session_privs = Vec::with_capacity(route.paths.len());
for _ in 0..route.paths.len() {
onion_session_privs.push(entropy_source.get_secure_random_bytes());
}
+ let mut payment = PendingOutboundPayment::Retryable {
+ retry_strategy,
+ attempts: PaymentAttempts::new(),
+ payment_params,
+ session_privs: HashSet::new(),
+ pending_amt_msat: 0,
+ pending_fee_msat: Some(0),
+ payment_hash,
+ payment_secret: recipient_onion.payment_secret,
+ payment_metadata: recipient_onion.payment_metadata,
+ keysend_preimage,
+ custom_tlvs: recipient_onion.custom_tlvs,
+ starting_block_height: best_block_height,
+ total_msat: route.get_total_amount(),
+ };
+
+ for (path, session_priv_bytes) in route.paths.iter().zip(onion_session_privs.iter()) {
+ assert!(payment.insert(*session_priv_bytes, path));
+ }
+
+ (payment, onion_session_privs)
+ }
+
+ #[allow(unused)]
+ pub(super) fn add_new_awaiting_invoice(
+ &self, payment_id: PaymentId, retry_strategy: Retry
+ ) -> Result<(), ()> {
let mut pending_outbounds = self.pending_outbound_payments.lock().unwrap();
match pending_outbounds.entry(payment_id) {
- hash_map::Entry::Occupied(_) => Err(PaymentSendFailure::DuplicatePayment),
+ hash_map::Entry::Occupied(_) => Err(()),
hash_map::Entry::Vacant(entry) => {
- let payment = entry.insert(PendingOutboundPayment::Retryable {
+ entry.insert(PendingOutboundPayment::AwaitingInvoice {
+ timer_ticks_without_response: 0,
retry_strategy,
- attempts: PaymentAttempts::new(),
- payment_params,
- session_privs: HashSet::new(),
- pending_amt_msat: 0,
- pending_fee_msat: Some(0),
- payment_hash,
- payment_secret: recipient_onion.payment_secret,
- payment_metadata: recipient_onion.payment_metadata,
- keysend_preimage,
- custom_tlvs: recipient_onion.custom_tlvs,
- starting_block_height: best_block_height,
- total_msat: route.get_total_amount(),
});
- for (path, session_priv_bytes) in route.paths.iter().zip(onion_session_privs.iter()) {
- assert!(payment.insert(*session_priv_bytes, path));
- }
-
- Ok(onion_session_privs)
+ Ok(())
},
}
}
if route.paths.len() < 1 {
return Err(PaymentSendFailure::ParameterError(APIError::InvalidRoute{err: "There must be at least one path to send over".to_owned()}));
}
- if recipient_onion.payment_secret.is_none() && route.paths.len() > 1 {
+ if recipient_onion.payment_secret.is_none() && route.paths.len() > 1
+ && !route.paths.iter().any(|p| p.blinded_tail.is_some())
+ {
return Err(PaymentSendFailure::ParameterError(APIError::APIMisuseError{err: "Payment secret is required for multi-path payments".to_owned()}));
}
let mut total_value = 0;
path_errs.push(Err(APIError::InvalidRoute{err: "Path didn't go anywhere/had bogus size".to_owned()}));
continue 'path_check;
}
- if path.blinded_tail.is_some() {
- path_errs.push(Err(APIError::InvalidRoute{err: "Sending to blinded paths isn't supported yet".to_owned()}));
- continue 'path_check;
- }
let dest_hop_idx = if path.blinded_tail.is_some() && path.blinded_tail.as_ref().unwrap().hops.len() > 1 {
usize::max_value() } else { path.hops.len() - 1 };
for (idx, hop) in path.hops.iter().enumerate() {
}
}
- pub(super) fn remove_stale_resolved_payments(&self,
- pending_events: &Mutex<VecDeque<(events::Event, Option<EventCompletionAction>)>>)
+ pub(super) fn remove_stale_payments(
+ &self, pending_events: &Mutex<VecDeque<(events::Event, Option<EventCompletionAction>)>>)
{
- // If an outbound payment was completed, and no pending HTLCs remain, we should remove it
- // from the map. However, if we did that immediately when the last payment HTLC is claimed,
- // this could race the user making a duplicate send_payment call and our idempotency
- // guarantees would be violated. Instead, we wait a few timer ticks to do the actual
- // removal. This should be more than sufficient to ensure the idempotency of any
- // `send_payment` calls that were made at the same time the `PaymentSent` event was being
- // processed.
let mut pending_outbound_payments = self.pending_outbound_payments.lock().unwrap();
- let pending_events = pending_events.lock().unwrap();
+ let mut pending_events = pending_events.lock().unwrap();
pending_outbound_payments.retain(|payment_id, payment| {
+ // If an outbound payment was completed, and no pending HTLCs remain, we should remove it
+ // from the map. However, if we did that immediately when the last payment HTLC is claimed,
+ // this could race the user making a duplicate send_payment call and our idempotency
+ // guarantees would be violated. Instead, we wait a few timer ticks to do the actual
+ // removal. This should be more than sufficient to ensure the idempotency of any
+ // `send_payment` calls that were made at the same time the `PaymentSent` event was being
+ // processed.
if let PendingOutboundPayment::Fulfilled { session_privs, timer_ticks_without_htlcs, .. } = payment {
let mut no_remaining_entries = session_privs.is_empty();
if no_remaining_entries {
*timer_ticks_without_htlcs = 0;
true
}
+ } else if let PendingOutboundPayment::AwaitingInvoice { timer_ticks_without_response, .. } = payment {
+ *timer_ticks_without_response += 1;
+ if *timer_ticks_without_response <= INVOICE_REQUEST_TIMEOUT_TICKS {
+ true
+ } else {
+ pending_events.push_back(
+ (events::Event::InvoiceRequestFailed { payment_id: *payment_id }, None)
+ );
+ false
+ }
} else { true }
});
}
}, None));
payment.remove();
}
+ } else if let PendingOutboundPayment::AwaitingInvoice { .. } = payment.get() {
+ pending_events.lock().unwrap().push_back((events::Event::InvoiceRequestFailed {
+ payment_id,
+ }, None));
+ payment.remove();
}
}
}
(1, reason, option),
(2, payment_hash, required),
},
+ (5, AwaitingInvoice) => {
+ (0, timer_ticks_without_response, required),
+ (2, retry_strategy, required),
+ },
+ (7, InvoiceReceived) => {
+ (0, payment_hash, required),
+ (2, retry_strategy, required),
+ },
);
#[cfg(test)]
use crate::ln::channelmanager::{PaymentId, RecipientOnionFields};
use crate::ln::features::{ChannelFeatures, NodeFeatures};
use crate::ln::msgs::{ErrorAction, LightningError};
- use crate::ln::outbound_payment::{OutboundPayments, Retry, RetryableSendFailure};
+ use crate::ln::outbound_payment::{Bolt12PaymentError, INVOICE_REQUEST_TIMEOUT_TICKS, OutboundPayments, Retry, RetryableSendFailure};
+ use crate::offers::invoice::DEFAULT_RELATIVE_EXPIRY;
+ use crate::offers::offer::OfferBuilder;
+ use crate::offers::test_utils::*;
use crate::routing::gossip::NetworkGraph;
use crate::routing::router::{InFlightHtlcs, Path, PaymentParameters, Route, RouteHop, RouteParameters};
use crate::sync::{Arc, Mutex, RwLock};
PaymentId([0; 32]), None, &Route { paths: vec![], route_params: None },
Some(Retry::Attempts(1)), Some(expired_route_params.payment_params.clone()),
&&keys_manager, 0).unwrap();
- outbound_payments.retry_payment_internal(
+ outbound_payments.find_route_and_send_payment(
PaymentHash([0; 32]), PaymentId([0; 32]), expired_route_params, &&router, vec![],
&|| InFlightHtlcs::new(), &&keys_manager, &&keys_manager, 0, &&logger, &pending_events,
&|_| Ok(()));
PaymentId([0; 32]), None, &Route { paths: vec![], route_params: None },
Some(Retry::Attempts(1)), Some(route_params.payment_params.clone()),
&&keys_manager, 0).unwrap();
- outbound_payments.retry_payment_internal(
+ outbound_payments.find_route_and_send_payment(
PaymentHash([0; 32]), PaymentId([0; 32]), route_params, &&router, vec![],
&|| InFlightHtlcs::new(), &&keys_manager, &&keys_manager, 0, &&logger, &pending_events,
&|_| Ok(()));
channel_features: ChannelFeatures::empty(),
fee_msat: 0,
cltv_expiry_delta: 0,
+ maybe_announced_channel: true,
}], blinded_tail: None }],
route_params: Some(route_params.clone()),
};
} else { panic!("Unexpected event"); }
if let Event::PaymentFailed { .. } = events[1].0 { } else { panic!("Unexpected event"); }
}
+
+ #[test]
+ fn removes_stale_awaiting_invoice() {
+ let pending_events = Mutex::new(VecDeque::new());
+ let outbound_payments = OutboundPayments::new();
+ let payment_id = PaymentId([0; 32]);
+
+ assert!(!outbound_payments.has_pending_payments());
+ assert!(outbound_payments.add_new_awaiting_invoice(payment_id, Retry::Attempts(0)).is_ok());
+ assert!(outbound_payments.has_pending_payments());
+
+ for _ in 0..INVOICE_REQUEST_TIMEOUT_TICKS {
+ outbound_payments.remove_stale_payments(&pending_events);
+ assert!(outbound_payments.has_pending_payments());
+ assert!(pending_events.lock().unwrap().is_empty());
+ }
+
+ outbound_payments.remove_stale_payments(&pending_events);
+ assert!(!outbound_payments.has_pending_payments());
+ assert!(!pending_events.lock().unwrap().is_empty());
+ assert_eq!(
+ pending_events.lock().unwrap().pop_front(),
+ Some((Event::InvoiceRequestFailed { payment_id }, None)),
+ );
+ assert!(pending_events.lock().unwrap().is_empty());
+
+ assert!(outbound_payments.add_new_awaiting_invoice(payment_id, Retry::Attempts(0)).is_ok());
+ assert!(outbound_payments.has_pending_payments());
+
+ assert!(outbound_payments.add_new_awaiting_invoice(payment_id, Retry::Attempts(0)).is_err());
+ }
+
+ #[test]
+ fn removes_abandoned_awaiting_invoice() {
+ let pending_events = Mutex::new(VecDeque::new());
+ let outbound_payments = OutboundPayments::new();
+ let payment_id = PaymentId([0; 32]);
+
+ assert!(!outbound_payments.has_pending_payments());
+ assert!(outbound_payments.add_new_awaiting_invoice(payment_id, Retry::Attempts(0)).is_ok());
+ assert!(outbound_payments.has_pending_payments());
+
+ outbound_payments.abandon_payment(
+ payment_id, PaymentFailureReason::UserAbandoned, &pending_events
+ );
+ assert!(!outbound_payments.has_pending_payments());
+ assert!(!pending_events.lock().unwrap().is_empty());
+ assert_eq!(
+ pending_events.lock().unwrap().pop_front(),
+ Some((Event::InvoiceRequestFailed { payment_id }, None)),
+ );
+ assert!(pending_events.lock().unwrap().is_empty());
+ }
+
+ #[cfg(feature = "std")]
+ #[test]
+ fn fails_sending_payment_for_expired_bolt12_invoice() {
+ let logger = test_utils::TestLogger::new();
+ let network_graph = Arc::new(NetworkGraph::new(Network::Testnet, &logger));
+ let scorer = RwLock::new(test_utils::TestScorer::new());
+ let router = test_utils::TestRouter::new(network_graph, &scorer);
+ let keys_manager = test_utils::TestKeysInterface::new(&[0; 32], Network::Testnet);
+
+ let pending_events = Mutex::new(VecDeque::new());
+ let outbound_payments = OutboundPayments::new();
+ let payment_id = PaymentId([0; 32]);
+
+ assert!(outbound_payments.add_new_awaiting_invoice(payment_id, Retry::Attempts(0)).is_ok());
+ assert!(outbound_payments.has_pending_payments());
+
+ let created_at = now() - DEFAULT_RELATIVE_EXPIRY;
+ let invoice = OfferBuilder::new("foo".into(), recipient_pubkey())
+ .amount_msats(1000)
+ .build().unwrap()
+ .request_invoice(vec![1; 32], payer_pubkey()).unwrap()
+ .build().unwrap()
+ .sign(payer_sign).unwrap()
+ .respond_with_no_std(payment_paths(), payment_hash(), created_at).unwrap()
+ .build().unwrap()
+ .sign(recipient_sign).unwrap();
+
+ assert_eq!(
+ outbound_payments.send_payment_for_bolt12_invoice(
+ &invoice, payment_id, &&router, vec![], || InFlightHtlcs::new(), &&keys_manager,
+ &&keys_manager, 0, &&logger, &pending_events, |_| panic!()
+ ),
+ Ok(()),
+ );
+ assert!(!outbound_payments.has_pending_payments());
+
+ let payment_hash = invoice.payment_hash();
+ let reason = Some(PaymentFailureReason::PaymentExpired);
+
+ assert!(!pending_events.lock().unwrap().is_empty());
+ assert_eq!(
+ pending_events.lock().unwrap().pop_front(),
+ Some((Event::PaymentFailed { payment_id, payment_hash, reason }, None)),
+ );
+ assert!(pending_events.lock().unwrap().is_empty());
+ }
+
+ #[test]
+ fn fails_finding_route_for_bolt12_invoice() {
+ let logger = test_utils::TestLogger::new();
+ let network_graph = Arc::new(NetworkGraph::new(Network::Testnet, &logger));
+ let scorer = RwLock::new(test_utils::TestScorer::new());
+ let router = test_utils::TestRouter::new(network_graph, &scorer);
+ let keys_manager = test_utils::TestKeysInterface::new(&[0; 32], Network::Testnet);
+
+ let pending_events = Mutex::new(VecDeque::new());
+ let outbound_payments = OutboundPayments::new();
+ let payment_id = PaymentId([0; 32]);
+
+ assert!(outbound_payments.add_new_awaiting_invoice(payment_id, Retry::Attempts(0)).is_ok());
+ assert!(outbound_payments.has_pending_payments());
+
+ let invoice = OfferBuilder::new("foo".into(), recipient_pubkey())
+ .amount_msats(1000)
+ .build().unwrap()
+ .request_invoice(vec![1; 32], payer_pubkey()).unwrap()
+ .build().unwrap()
+ .sign(payer_sign).unwrap()
+ .respond_with_no_std(payment_paths(), payment_hash(), now()).unwrap()
+ .build().unwrap()
+ .sign(recipient_sign).unwrap();
+
+ router.expect_find_route(
+ RouteParameters {
+ payment_params: PaymentParameters::from_bolt12_invoice(&invoice),
+ final_value_msat: invoice.amount_msats(),
+ },
+ Err(LightningError { err: String::new(), action: ErrorAction::IgnoreError }),
+ );
+
+ assert_eq!(
+ outbound_payments.send_payment_for_bolt12_invoice(
+ &invoice, payment_id, &&router, vec![], || InFlightHtlcs::new(), &&keys_manager,
+ &&keys_manager, 0, &&logger, &pending_events, |_| panic!()
+ ),
+ Ok(()),
+ );
+ assert!(!outbound_payments.has_pending_payments());
+
+ let payment_hash = invoice.payment_hash();
+ let reason = Some(PaymentFailureReason::RouteNotFound);
+
+ assert!(!pending_events.lock().unwrap().is_empty());
+ assert_eq!(
+ pending_events.lock().unwrap().pop_front(),
+ Some((Event::PaymentFailed { payment_id, payment_hash, reason }, None)),
+ );
+ assert!(pending_events.lock().unwrap().is_empty());
+ }
+
+ #[test]
+ fn fails_paying_for_bolt12_invoice() {
+ let logger = test_utils::TestLogger::new();
+ let network_graph = Arc::new(NetworkGraph::new(Network::Testnet, &logger));
+ let scorer = RwLock::new(test_utils::TestScorer::new());
+ let router = test_utils::TestRouter::new(network_graph, &scorer);
+ let keys_manager = test_utils::TestKeysInterface::new(&[0; 32], Network::Testnet);
+
+ let pending_events = Mutex::new(VecDeque::new());
+ let outbound_payments = OutboundPayments::new();
+ let payment_id = PaymentId([0; 32]);
+
+ assert!(outbound_payments.add_new_awaiting_invoice(payment_id, Retry::Attempts(0)).is_ok());
+ assert!(outbound_payments.has_pending_payments());
+
+ let invoice = OfferBuilder::new("foo".into(), recipient_pubkey())
+ .amount_msats(1000)
+ .build().unwrap()
+ .request_invoice(vec![1; 32], payer_pubkey()).unwrap()
+ .build().unwrap()
+ .sign(payer_sign).unwrap()
+ .respond_with_no_std(payment_paths(), payment_hash(), now()).unwrap()
+ .build().unwrap()
+ .sign(recipient_sign).unwrap();
+
+ let route_params = RouteParameters {
+ payment_params: PaymentParameters::from_bolt12_invoice(&invoice),
+ final_value_msat: invoice.amount_msats(),
+ };
+ router.expect_find_route(
+ route_params.clone(), Ok(Route { paths: vec![], route_params: Some(route_params) })
+ );
+
+ assert_eq!(
+ outbound_payments.send_payment_for_bolt12_invoice(
+ &invoice, payment_id, &&router, vec![], || InFlightHtlcs::new(), &&keys_manager,
+ &&keys_manager, 0, &&logger, &pending_events, |_| panic!()
+ ),
+ Ok(()),
+ );
+ assert!(!outbound_payments.has_pending_payments());
+
+ let payment_hash = invoice.payment_hash();
+ let reason = Some(PaymentFailureReason::UnexpectedError);
+
+ assert!(!pending_events.lock().unwrap().is_empty());
+ assert_eq!(
+ pending_events.lock().unwrap().pop_front(),
+ Some((Event::PaymentFailed { payment_id, payment_hash, reason }, None)),
+ );
+ assert!(pending_events.lock().unwrap().is_empty());
+ }
+
+ #[test]
+ fn sends_payment_for_bolt12_invoice() {
+ let logger = test_utils::TestLogger::new();
+ let network_graph = Arc::new(NetworkGraph::new(Network::Testnet, &logger));
+ let scorer = RwLock::new(test_utils::TestScorer::new());
+ let router = test_utils::TestRouter::new(network_graph, &scorer);
+ let keys_manager = test_utils::TestKeysInterface::new(&[0; 32], Network::Testnet);
+
+ let pending_events = Mutex::new(VecDeque::new());
+ let outbound_payments = OutboundPayments::new();
+ let payment_id = PaymentId([0; 32]);
+
+ let invoice = OfferBuilder::new("foo".into(), recipient_pubkey())
+ .amount_msats(1000)
+ .build().unwrap()
+ .request_invoice(vec![1; 32], payer_pubkey()).unwrap()
+ .build().unwrap()
+ .sign(payer_sign).unwrap()
+ .respond_with_no_std(payment_paths(), payment_hash(), now()).unwrap()
+ .build().unwrap()
+ .sign(recipient_sign).unwrap();
+
+ let route_params = RouteParameters {
+ payment_params: PaymentParameters::from_bolt12_invoice(&invoice),
+ final_value_msat: invoice.amount_msats(),
+ };
+ router.expect_find_route(
+ route_params.clone(),
+ Ok(Route {
+ paths: vec![
+ Path {
+ hops: vec![
+ RouteHop {
+ pubkey: recipient_pubkey(),
+ node_features: NodeFeatures::empty(),
+ short_channel_id: 42,
+ channel_features: ChannelFeatures::empty(),
+ fee_msat: invoice.amount_msats(),
+ cltv_expiry_delta: 0,
+ maybe_announced_channel: true,
+ }
+ ],
+ blinded_tail: None,
+ }
+ ],
+ route_params: Some(route_params),
+ })
+ );
+
+ assert!(!outbound_payments.has_pending_payments());
+ assert_eq!(
+ outbound_payments.send_payment_for_bolt12_invoice(
+ &invoice, payment_id, &&router, vec![], || InFlightHtlcs::new(), &&keys_manager,
+ &&keys_manager, 0, &&logger, &pending_events, |_| panic!()
+ ),
+ Err(Bolt12PaymentError::UnexpectedInvoice),
+ );
+ assert!(!outbound_payments.has_pending_payments());
+ assert!(pending_events.lock().unwrap().is_empty());
+
+ assert!(outbound_payments.add_new_awaiting_invoice(payment_id, Retry::Attempts(0)).is_ok());
+ assert!(outbound_payments.has_pending_payments());
+
+ assert_eq!(
+ outbound_payments.send_payment_for_bolt12_invoice(
+ &invoice, payment_id, &&router, vec![], || InFlightHtlcs::new(), &&keys_manager,
+ &&keys_manager, 0, &&logger, &pending_events, |_| Ok(())
+ ),
+ Ok(()),
+ );
+ assert!(outbound_payments.has_pending_payments());
+ assert!(pending_events.lock().unwrap().is_empty());
+
+ assert_eq!(
+ outbound_payments.send_payment_for_bolt12_invoice(
+ &invoice, payment_id, &&router, vec![], || InFlightHtlcs::new(), &&keys_manager,
+ &&keys_manager, 0, &&logger, &pending_events, |_| panic!()
+ ),
+ Err(Bolt12PaymentError::DuplicateInvoice),
+ );
+ assert!(outbound_payments.has_pending_payments());
+ assert!(pending_events.lock().unwrap().is_empty());
+ }
}