}
#[test]
-fn forward_intercepted_payment() {
+fn intercepted_payment() {
// Test that detecting an intercept scid on payment forward will signal LDK to generate an
- // intercept event, which the LSP can then use to open a JIT channel to forward the payment.
+ // intercept event, which the LSP can then use to either (a) open a JIT channel to forward the
+ // payment or (b) fail the payment.
+ do_test_intercepted_payment(false);
+ do_test_intercepted_payment(true);
+}
+
+fn do_test_intercepted_payment(fail_intercept: bool) {
let chanmon_cfgs = create_chanmon_cfgs(3);
let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
let mut chan_config = test_default_channel_config();
let unknown_chan_id_err = nodes[1].node.forward_intercepted_htlc(intercept_id, &[42; 32], nodes[2].node.get_our_node_id(), expected_outbound_amount_msat).unwrap_err();
assert_eq!(unknown_chan_id_err , APIError::APIMisuseError { err: format!("Channel with id {:?} not found", [42; 32]) });
- // Open the just-in-time channel so the payment can then be forwarded.
- let (_, channel_id) = open_zero_conf_channel(&nodes[1], &nodes[2], None);
-
- // Check for unknown intercept id error.
- let unknown_intercept_id = InterceptId([42; 32]);
- let unknown_intercept_id_err = nodes[1].node.forward_intercepted_htlc(unknown_intercept_id, &channel_id, nodes[2].node.get_our_node_id(), expected_outbound_amount_msat).unwrap_err();
- assert_eq!(unknown_intercept_id_err , APIError::APIMisuseError { err: format!("Payment with intercept id {:?} not found", unknown_intercept_id.0) });
-
- // Finally, forward the intercepted payment through and claim it.
- nodes[1].node.forward_intercepted_htlc(intercept_id, &channel_id, nodes[2].node.get_our_node_id(), expected_outbound_amount_msat).unwrap();
- expect_pending_htlcs_forwardable!(nodes[1]);
-
- let payment_event = {
- {
- let mut added_monitors = nodes[1].chain_monitor.added_monitors.lock().unwrap();
- assert_eq!(added_monitors.len(), 1);
- added_monitors.clear();
+ if fail_intercept {
+ // Ensure we can fail the intercepted payment back.
+ nodes[1].node.fail_intercepted_htlc(intercept_id).unwrap();
+ expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore!(nodes[1], vec![HTLCDestination::UnknownNextHop { requested_forward_scid: intercept_scid }]);
+ nodes[1].node.process_pending_htlc_forwards();
+ let update_fail = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
+ check_added_monitors!(&nodes[1], 1);
+ assert!(update_fail.update_fail_htlcs.len() == 1);
+ let fail_msg = update_fail.update_fail_htlcs[0].clone();
+ nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &fail_msg);
+ commitment_signed_dance!(nodes[0], nodes[1], update_fail.commitment_signed, false);
+
+ // Ensure the payment fails with the expected error.
+ let fail_conditions = PaymentFailedConditions::new()
+ .blamed_scid(intercept_scid)
+ .blamed_chan_closed(true)
+ .expected_htlc_error_data(0x4000 | 10, &[]);
+ expect_payment_failed_conditions(&nodes[0], payment_hash, false, fail_conditions);
+ } else {
+ // Open the just-in-time channel so the payment can then be forwarded.
+ let (_, channel_id) = open_zero_conf_channel(&nodes[1], &nodes[2], None);
+
+ // Check for unknown intercept id error.
+ let unknown_intercept_id = InterceptId([42; 32]);
+ let unknown_intercept_id_err = nodes[1].node.forward_intercepted_htlc(unknown_intercept_id, &channel_id, nodes[2].node.get_our_node_id(), expected_outbound_amount_msat).unwrap_err();
+ assert_eq!(unknown_intercept_id_err , APIError::APIMisuseError { err: format!("Payment with intercept id {:?} not found", unknown_intercept_id.0) });
+
+ // Finally, forward the intercepted payment through and claim it.
+ nodes[1].node.forward_intercepted_htlc(intercept_id, &channel_id, nodes[2].node.get_our_node_id(), expected_outbound_amount_msat).unwrap();
+ expect_pending_htlcs_forwardable!(nodes[1]);
+
+ let payment_event = {
+ {
+ let mut added_monitors = nodes[1].chain_monitor.added_monitors.lock().unwrap();
+ assert_eq!(added_monitors.len(), 1);
+ added_monitors.clear();
+ }
+ let mut events = nodes[1].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ SendEvent::from_event(events.remove(0))
+ };
+ nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event.msgs[0]);
+ commitment_signed_dance!(nodes[2], nodes[1], &payment_event.commitment_msg, false, true);
+ expect_pending_htlcs_forwardable!(nodes[2]);
+
+ let payment_preimage = nodes[2].node.get_payment_preimage(payment_hash, payment_secret).unwrap();
+ expect_payment_received!(&nodes[2], payment_hash, payment_secret, amt_msat, Some(payment_preimage), nodes[2].node.get_our_node_id());
+ do_claim_payment_along_route(&nodes[0], &vec!(&vec!(&nodes[1], &nodes[2])[..]), false, payment_preimage);
+ let events = nodes[0].node.get_and_clear_pending_events();
+ assert_eq!(events.len(), 2);
+ match events[0] {
+ Event::PaymentSent { payment_preimage: ref ev_preimage, payment_hash: ref ev_hash, ref fee_paid_msat, .. } => {
+ assert_eq!(payment_preimage, *ev_preimage);
+ assert_eq!(payment_hash, *ev_hash);
+ assert_eq!(fee_paid_msat, &Some(1000));
+ },
+ _ => panic!("Unexpected event")
+ }
+ match events[1] {
+ Event::PaymentPathSuccessful { payment_hash: hash, .. } => {
+ assert_eq!(hash, Some(payment_hash));
+ },
+ _ => panic!("Unexpected event")
}
- let mut events = nodes[1].node.get_and_clear_pending_msg_events();
- assert_eq!(events.len(), 1);
- SendEvent::from_event(events.remove(0))
- };
- nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event.msgs[0]);
- commitment_signed_dance!(nodes[2], nodes[1], &payment_event.commitment_msg, false, true);
- expect_pending_htlcs_forwardable!(nodes[2]);
-
- let payment_preimage = nodes[2].node.get_payment_preimage(payment_hash, payment_secret).unwrap();
- expect_payment_received!(&nodes[2], payment_hash, payment_secret, amt_msat, Some(payment_preimage), nodes[2].node.get_our_node_id());
- do_claim_payment_along_route(&nodes[0], &vec!(&vec!(&nodes[1], &nodes[2])[..]), false, payment_preimage);
- let events = nodes[0].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 2);
- match events[0] {
- Event::PaymentSent { payment_preimage: ref ev_preimage, payment_hash: ref ev_hash, ref fee_paid_msat, .. } => {
- assert_eq!(payment_preimage, *ev_preimage);
- assert_eq!(payment_hash, *ev_hash);
- assert_eq!(fee_paid_msat, &Some(1000));
- },
- _ => panic!("Unexpected event")
- }
- match events[1] {
- Event::PaymentPathSuccessful { payment_hash: hash, .. } => {
- assert_eq!(hash, Some(payment_hash));
- },
- _ => panic!("Unexpected event")
}
}
projects / rust-lightning / blobdiff