X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;ds=sidebyside;f=lightning%2Fsrc%2Fln%2Foffers_tests.rs;h=b36e9de39e4626a7fbac73db7059d2df2046709c;hb=48cba2954b245f351c875c36fd22a7173d532ebe;hp=5a821189964badc673ae5edd0c0a72968fc0270c;hpb=1059ac3c28d0f7bac70bdc9be6d85e936fa6a358;p=rust-lightning diff --git a/lightning/src/ln/offers_tests.rs b/lightning/src/ln/offers_tests.rs index 5a821189..b36e9de3 100644 --- a/lightning/src/ln/offers_tests.rs +++ b/lightning/src/ln/offers_tests.rs @@ -13,18 +13,51 @@ //! to initiate and request payment for them, respectively. It also manages the payment flow via //! implementing [`OffersMessageHandler`]. This module tests that functionality, including the //! resulting [`Event`] generation. +//! +//! Two-node success tests use an announced channel: +//! +//! Alice --- Bob +//! +//! While two-node failure tests use an unannounced channel: +//! +//! Alice ... Bob +//! +//! Six-node tests use unannounced channels for the sender and recipient and announced channels for +//! the rest of the network. +//! +//! nodes[4] +//! / \ +//! / \ +//! / \ +//! Alice ... Bob -------- Charlie ... David +//! \ / +//! \ / +//! \ / +//! nodes[5] +//! +//! Unnamed nodes are needed to ensure unannounced nodes can create two-hop blinded paths. +//! +//! Nodes without channels are disconnected and connected as needed to ensure that deterministic +//! blinded paths are used. +use bitcoin::network::constants::Network; use core::time::Duration; -use crate::blinded_path::BlindedPath; +use crate::blinded_path::{BlindedPath, IntroductionNode}; +use crate::blinded_path::payment::{Bolt12OfferContext, Bolt12RefundContext, PaymentContext}; use crate::events::{Event, MessageSendEventsProvider, PaymentPurpose}; -use crate::ln::channelmanager::{PaymentId, RecentPaymentDetails, Retry}; +use crate::ln::channelmanager::{PaymentId, RecentPaymentDetails, Retry, self}; +use crate::ln::features::InvoiceRequestFeatures; use crate::ln::functional_test_utils::*; -use crate::ln::msgs::{OnionMessage, OnionMessageHandler}; +use crate::ln::msgs::{ChannelMessageHandler, Init, NodeAnnouncement, OnionMessage, OnionMessageHandler, RoutingMessageHandler, SocketAddress, UnsignedGossipMessage, UnsignedNodeAnnouncement}; use crate::offers::invoice::Bolt12Invoice; -use crate::offers::invoice_request::InvoiceRequest; +use crate::offers::invoice_error::InvoiceError; +use crate::offers::invoice_request::{InvoiceRequest, InvoiceRequestFields}; +use crate::offers::parse::Bolt12SemanticError; use crate::onion_message::messenger::PeeledOnion; use crate::onion_message::offers::OffersMessage; use crate::onion_message::packet::ParsedOnionMessageContents; +use crate::routing::gossip::{NodeAlias, NodeId}; +use crate::sign::{NodeSigner, Recipient}; use crate::prelude::*; @@ -40,6 +73,67 @@ macro_rules! expect_recent_payment { } } +fn connect_peers<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>) { + let node_id_a = node_a.node.get_our_node_id(); + let node_id_b = node_b.node.get_our_node_id(); + + let init_a = Init { + features: node_a.init_features(&node_id_b), + networks: None, + remote_network_address: None, + }; + let init_b = Init { + features: node_b.init_features(&node_id_a), + networks: None, + remote_network_address: None, + }; + + node_a.node.peer_connected(&node_id_b, &init_b, true).unwrap(); + node_b.node.peer_connected(&node_id_a, &init_a, false).unwrap(); + node_a.onion_messenger.peer_connected(&node_id_b, &init_b, true).unwrap(); + node_b.onion_messenger.peer_connected(&node_id_a, &init_a, false).unwrap(); +} + +fn disconnect_peers<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, peers: &[&Node<'a, 'b, 'c>]) { + for node_b in peers { + node_a.node.peer_disconnected(&node_b.node.get_our_node_id()); + node_b.node.peer_disconnected(&node_a.node.get_our_node_id()); + node_a.onion_messenger.peer_disconnected(&node_b.node.get_our_node_id()); + node_b.onion_messenger.peer_disconnected(&node_a.node.get_our_node_id()); + } +} + +fn announce_node_address<'a, 'b, 'c>( + node: &Node<'a, 'b, 'c>, peers: &[&Node<'a, 'b, 'c>], address: SocketAddress, +) { + let features = node.onion_messenger.provided_node_features() + | node.gossip_sync.provided_node_features(); + let rgb = [0u8; 3]; + let announcement = UnsignedNodeAnnouncement { + features, + timestamp: 1000, + node_id: NodeId::from_pubkey(&node.keys_manager.get_node_id(Recipient::Node).unwrap()), + rgb, + alias: NodeAlias([0u8; 32]), + addresses: vec![address], + excess_address_data: Vec::new(), + excess_data: Vec::new(), + }; + let signature = node.keys_manager.sign_gossip_message( + UnsignedGossipMessage::NodeAnnouncement(&announcement) + ).unwrap(); + + let msg = NodeAnnouncement { + signature, + contents: announcement + }; + + node.gossip_sync.handle_node_announcement(&msg).unwrap(); + for peer in peers { + peer.gossip_sync.handle_node_announcement(&msg).unwrap(); + } +} + fn route_bolt12_payment<'a, 'b, 'c>( node: &Node<'a, 'b, 'c>, path: &[&Node<'a, 'b, 'c>], invoice: &Bolt12Invoice ) { @@ -54,21 +148,33 @@ fn route_bolt12_payment<'a, 'b, 'c>( // invoice contains the payment_hash but it was encrypted inside an onion message. let amount_msats = invoice.amount_msats(); let payment_hash = invoice.payment_hash(); - do_pass_along_path( - node, path, amount_msats, payment_hash, None, ev, false, false, None, false - ); + let args = PassAlongPathArgs::new(node, path, amount_msats, payment_hash, ev) + .without_clearing_recipient_events(); + do_pass_along_path(args); } -fn claim_bolt12_payment<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, path: &[&Node<'a, 'b, 'c>]) { +fn claim_bolt12_payment<'a, 'b, 'c>( + node: &Node<'a, 'b, 'c>, path: &[&Node<'a, 'b, 'c>], expected_payment_context: PaymentContext +) { let recipient = &path[path.len() - 1]; - match get_event!(recipient, Event::PaymentClaimable) { - Event::PaymentClaimable { - purpose: PaymentPurpose::InvoicePayment { - payment_preimage: Some(payment_preimage), .. - }, .. - } => claim_payment(node, path, payment_preimage), - _ => panic!(), + let payment_purpose = match get_event!(recipient, Event::PaymentClaimable) { + Event::PaymentClaimable { purpose, .. } => purpose, + _ => panic!("No Event::PaymentClaimable"), + }; + let payment_preimage = match payment_purpose.preimage() { + Some(preimage) => preimage, + None => panic!("No preimage in Event::PaymentClaimable"), }; + match payment_purpose { + PaymentPurpose::Bolt12OfferPayment { payment_context, .. } => { + assert_eq!(PaymentContext::Bolt12Offer(payment_context), expected_payment_context); + }, + PaymentPurpose::Bolt12RefundPayment { payment_context, .. } => { + assert_eq!(PaymentContext::Bolt12Refund(payment_context), expected_payment_context); + }, + _ => panic!("Unexpected payment purpose: {:?}", payment_purpose), + } + claim_payment(node, path, payment_preimage); } fn extract_invoice_request<'a, 'b, 'c>( @@ -103,6 +209,323 @@ fn extract_invoice<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, message: &OnionMessage) } } +fn extract_invoice_error<'a, 'b, 'c>( + node: &Node<'a, 'b, 'c>, message: &OnionMessage +) -> InvoiceError { + match node.onion_messenger.peel_onion_message(message) { + Ok(PeeledOnion::Receive(message, _, _)) => match message { + ParsedOnionMessageContents::Offers(offers_message) => match offers_message { + OffersMessage::InvoiceRequest(invoice_request) => panic!("Unexpected invoice_request: {:?}", invoice_request), + OffersMessage::Invoice(invoice) => panic!("Unexpected invoice: {:?}", invoice), + OffersMessage::InvoiceError(error) => error, + }, + ParsedOnionMessageContents::Custom(message) => panic!("Unexpected custom message: {:?}", message), + }, + Ok(PeeledOnion::Forward(_, _)) => panic!("Unexpected onion message forward"), + Err(e) => panic!("Failed to process onion message {:?}", e), + } +} + +/// Checks that blinded paths without Tor-only nodes are preferred when constructing an offer. +#[test] +fn prefers_non_tor_nodes_in_blinded_paths() { + let mut accept_forward_cfg = test_default_channel_config(); + accept_forward_cfg.accept_forwards_to_priv_channels = true; + + let mut features = channelmanager::provided_init_features(&accept_forward_cfg); + features.set_onion_messages_optional(); + features.set_route_blinding_optional(); + + let chanmon_cfgs = create_chanmon_cfgs(6); + let node_cfgs = create_node_cfgs(6, &chanmon_cfgs); + + *node_cfgs[1].override_init_features.borrow_mut() = Some(features); + + let node_chanmgrs = create_node_chanmgrs( + 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None] + ); + let nodes = create_network(6, &node_cfgs, &node_chanmgrs); + + create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000); + + // Add an extra channel so that more than one of Bob's peers have MIN_PEER_CHANNELS. + create_announced_chan_between_nodes_with_value(&nodes, 4, 5, 10_000_000, 1_000_000_000); + + let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]); + let bob_id = bob.node.get_our_node_id(); + let charlie_id = charlie.node.get_our_node_id(); + + disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]); + disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]); + + let tor = SocketAddress::OnionV2([255, 254, 253, 252, 251, 250, 249, 248, 247, 246, 38, 7]); + announce_node_address(charlie, &[alice, bob, david, &nodes[4], &nodes[5]], tor.clone()); + + let offer = bob.node + .create_offer_builder().unwrap() + .amount_msats(10_000_000) + .build().unwrap(); + assert_ne!(offer.signing_pubkey(), Some(bob_id)); + assert!(!offer.paths().is_empty()); + for path in offer.paths() { + assert_ne!(path.introduction_node, IntroductionNode::NodeId(bob_id)); + assert_ne!(path.introduction_node, IntroductionNode::NodeId(charlie_id)); + } + + // Use a one-hop blinded path when Bob is announced and all his peers are Tor-only. + announce_node_address(&nodes[4], &[alice, bob, charlie, david, &nodes[5]], tor.clone()); + announce_node_address(&nodes[5], &[alice, bob, charlie, david, &nodes[4]], tor.clone()); + + let offer = bob.node + .create_offer_builder().unwrap() + .amount_msats(10_000_000) + .build().unwrap(); + assert_ne!(offer.signing_pubkey(), Some(bob_id)); + assert!(!offer.paths().is_empty()); + for path in offer.paths() { + assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id)); + } +} + +/// Checks that blinded paths prefer an introduction node that is the most connected. +#[test] +fn prefers_more_connected_nodes_in_blinded_paths() { + let mut accept_forward_cfg = test_default_channel_config(); + accept_forward_cfg.accept_forwards_to_priv_channels = true; + + let mut features = channelmanager::provided_init_features(&accept_forward_cfg); + features.set_onion_messages_optional(); + features.set_route_blinding_optional(); + + let chanmon_cfgs = create_chanmon_cfgs(6); + let node_cfgs = create_node_cfgs(6, &chanmon_cfgs); + + *node_cfgs[1].override_init_features.borrow_mut() = Some(features); + + let node_chanmgrs = create_node_chanmgrs( + 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None] + ); + let nodes = create_network(6, &node_cfgs, &node_chanmgrs); + + create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000); + + // Add extra channels so that more than one of Bob's peers have MIN_PEER_CHANNELS and one has + // more than the others. + create_announced_chan_between_nodes_with_value(&nodes, 0, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 3, 4, 10_000_000, 1_000_000_000); + + let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]); + let bob_id = bob.node.get_our_node_id(); + + disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]); + disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]); + + let offer = bob.node + .create_offer_builder().unwrap() + .amount_msats(10_000_000) + .build().unwrap(); + assert_ne!(offer.signing_pubkey(), Some(bob_id)); + assert!(!offer.paths().is_empty()); + for path in offer.paths() { + assert_eq!(path.introduction_node, IntroductionNode::NodeId(nodes[4].node.get_our_node_id())); + } +} + +/// Checks that an offer can be paid through blinded paths and that ephemeral pubkeys are used +/// rather than exposing a node's pubkey. +#[test] +fn creates_and_pays_for_offer_using_two_hop_blinded_path() { + let mut accept_forward_cfg = test_default_channel_config(); + accept_forward_cfg.accept_forwards_to_priv_channels = true; + + let mut features = channelmanager::provided_init_features(&accept_forward_cfg); + features.set_onion_messages_optional(); + features.set_route_blinding_optional(); + + let chanmon_cfgs = create_chanmon_cfgs(6); + let node_cfgs = create_node_cfgs(6, &chanmon_cfgs); + + *node_cfgs[1].override_init_features.borrow_mut() = Some(features); + + let node_chanmgrs = create_node_chanmgrs( + 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None] + ); + let nodes = create_network(6, &node_cfgs, &node_chanmgrs); + + create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000); + + let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]); + let alice_id = alice.node.get_our_node_id(); + let bob_id = bob.node.get_our_node_id(); + let charlie_id = charlie.node.get_our_node_id(); + let david_id = david.node.get_our_node_id(); + + disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]); + disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]); + + let offer = alice.node + .create_offer_builder() + .unwrap() + .amount_msats(10_000_000) + .build().unwrap(); + assert_ne!(offer.signing_pubkey(), Some(alice_id)); + assert!(!offer.paths().is_empty()); + for path in offer.paths() { + assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id)); + } + + let payment_id = PaymentId([1; 32]); + david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) + .unwrap(); + expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id); + + connect_peers(david, bob); + + let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap(); + bob.onion_messenger.handle_onion_message(&david_id, &onion_message); + + connect_peers(alice, charlie); + + let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap(); + alice.onion_messenger.handle_onion_message(&bob_id, &onion_message); + + let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message); + let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext { + offer_id: offer.id(), + invoice_request: InvoiceRequestFields { + payer_id: invoice_request.payer_id(), + amount_msats: None, + features: InvoiceRequestFeatures::empty(), + quantity: None, + payer_note_truncated: None, + }, + }); + assert_eq!(invoice_request.amount_msats(), None); + assert_ne!(invoice_request.payer_id(), david_id); + assert_eq!(reply_path.unwrap().introduction_node, IntroductionNode::NodeId(charlie_id)); + + let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap(); + charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message); + + let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap(); + david.onion_messenger.handle_onion_message(&charlie_id, &onion_message); + + let invoice = extract_invoice(david, &onion_message); + assert_eq!(invoice.amount_msats(), 10_000_000); + assert_ne!(invoice.signing_pubkey(), alice_id); + assert!(!invoice.payment_paths().is_empty()); + for (_, path) in invoice.payment_paths() { + assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id)); + } + + route_bolt12_payment(david, &[charlie, bob, alice], &invoice); + expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id); + + claim_bolt12_payment(david, &[charlie, bob, alice], payment_context); + expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id); +} + +/// Checks that a refund can be paid through blinded paths and that ephemeral pubkeys are used +/// rather than exposing a node's pubkey. +#[test] +fn creates_and_pays_for_refund_using_two_hop_blinded_path() { + let mut accept_forward_cfg = test_default_channel_config(); + accept_forward_cfg.accept_forwards_to_priv_channels = true; + + let mut features = channelmanager::provided_init_features(&accept_forward_cfg); + features.set_onion_messages_optional(); + features.set_route_blinding_optional(); + + let chanmon_cfgs = create_chanmon_cfgs(6); + let node_cfgs = create_node_cfgs(6, &chanmon_cfgs); + + *node_cfgs[1].override_init_features.borrow_mut() = Some(features); + + let node_chanmgrs = create_node_chanmgrs( + 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None] + ); + let nodes = create_network(6, &node_cfgs, &node_chanmgrs); + + create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000); + + let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]); + let alice_id = alice.node.get_our_node_id(); + let bob_id = bob.node.get_our_node_id(); + let charlie_id = charlie.node.get_our_node_id(); + let david_id = david.node.get_our_node_id(); + + disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]); + disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]); + + let absolute_expiry = Duration::from_secs(u64::MAX); + let payment_id = PaymentId([1; 32]); + let refund = david.node + .create_refund_builder( + "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None + ) + .unwrap() + .build().unwrap(); + assert_eq!(refund.amount_msats(), 10_000_000); + assert_eq!(refund.absolute_expiry(), Some(absolute_expiry)); + assert_ne!(refund.payer_id(), david_id); + assert!(!refund.paths().is_empty()); + for path in refund.paths() { + assert_eq!(path.introduction_node, IntroductionNode::NodeId(charlie_id)); + } + expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id); + + let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {}); + let expected_invoice = alice.node.request_refund_payment(&refund).unwrap(); + + connect_peers(alice, charlie); + + let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap(); + charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message); + + let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap(); + david.onion_messenger.handle_onion_message(&charlie_id, &onion_message); + + let invoice = extract_invoice(david, &onion_message); + assert_eq!(invoice, expected_invoice); + + assert_eq!(invoice.amount_msats(), 10_000_000); + assert_ne!(invoice.signing_pubkey(), alice_id); + assert!(!invoice.payment_paths().is_empty()); + for (_, path) in invoice.payment_paths() { + assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id)); + } + + route_bolt12_payment(david, &[charlie, bob, alice], &invoice); + expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id); + + claim_bolt12_payment(david, &[charlie, bob, alice], payment_context); + expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id); +} + /// Checks that an offer can be paid through a one-hop blinded path and that ephemeral pubkeys are /// used rather than exposing a node's pubkey. However, the node's pubkey is still used as the /// introduction node of the blinded path. @@ -121,13 +544,13 @@ fn creates_and_pays_for_offer_using_one_hop_blinded_path() { let bob_id = bob.node.get_our_node_id(); let offer = alice.node - .create_offer_builder("coffee".to_string()).unwrap() + .create_offer_builder().unwrap() .amount_msats(10_000_000) .build().unwrap(); - assert_ne!(offer.signing_pubkey(), alice_id); + assert_ne!(offer.signing_pubkey(), Some(alice_id)); assert!(!offer.paths().is_empty()); for path in offer.paths() { - assert_eq!(path.introduction_node_id, alice_id); + assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id)); } let payment_id = PaymentId([1; 32]); @@ -138,9 +561,19 @@ fn creates_and_pays_for_offer_using_one_hop_blinded_path() { alice.onion_messenger.handle_onion_message(&bob_id, &onion_message); let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message); + let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext { + offer_id: offer.id(), + invoice_request: InvoiceRequestFields { + payer_id: invoice_request.payer_id(), + amount_msats: None, + features: InvoiceRequestFeatures::empty(), + quantity: None, + payer_note_truncated: None, + }, + }); assert_eq!(invoice_request.amount_msats(), None); assert_ne!(invoice_request.payer_id(), bob_id); - assert_eq!(reply_path.unwrap().introduction_node_id, bob_id); + assert_eq!(reply_path.unwrap().introduction_node, IntroductionNode::NodeId(bob_id)); let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap(); bob.onion_messenger.handle_onion_message(&alice_id, &onion_message); @@ -150,13 +583,13 @@ fn creates_and_pays_for_offer_using_one_hop_blinded_path() { assert_ne!(invoice.signing_pubkey(), alice_id); assert!(!invoice.payment_paths().is_empty()); for (_, path) in invoice.payment_paths() { - assert_eq!(path.introduction_node_id, alice_id); + assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id)); } route_bolt12_payment(bob, &[alice], &invoice); expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id); - claim_bolt12_payment(bob, &[alice]); + claim_bolt12_payment(bob, &[alice], payment_context); expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id); } @@ -190,26 +623,535 @@ fn creates_and_pays_for_refund_using_one_hop_blinded_path() { assert_ne!(refund.payer_id(), bob_id); assert!(!refund.paths().is_empty()); for path in refund.paths() { - assert_eq!(path.introduction_node_id, bob_id); + assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id)); } expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id); - alice.node.request_refund_payment(&refund).unwrap(); + let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {}); + let expected_invoice = alice.node.request_refund_payment(&refund).unwrap(); let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap(); bob.onion_messenger.handle_onion_message(&alice_id, &onion_message); let invoice = extract_invoice(bob, &onion_message); + assert_eq!(invoice, expected_invoice); + assert_eq!(invoice.amount_msats(), 10_000_000); assert_ne!(invoice.signing_pubkey(), alice_id); assert!(!invoice.payment_paths().is_empty()); for (_, path) in invoice.payment_paths() { - assert_eq!(path.introduction_node_id, alice_id); + assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id)); } route_bolt12_payment(bob, &[alice], &invoice); expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id); - claim_bolt12_payment(bob, &[alice]); + claim_bolt12_payment(bob, &[alice], payment_context); + expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id); +} + +/// Checks that an invoice for an offer without any blinded paths can be requested. Note that while +/// the requested is sent directly using the node's pubkey, the response and the payment still use +/// blinded paths as required by the spec. +#[test] +fn pays_for_offer_without_blinded_paths() { + let chanmon_cfgs = create_chanmon_cfgs(2); + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); + let nodes = create_network(2, &node_cfgs, &node_chanmgrs); + + create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + + let alice = &nodes[0]; + let alice_id = alice.node.get_our_node_id(); + let bob = &nodes[1]; + let bob_id = bob.node.get_our_node_id(); + + let offer = alice.node + .create_offer_builder().unwrap() + .clear_paths() + .amount_msats(10_000_000) + .build().unwrap(); + assert_eq!(offer.signing_pubkey(), Some(alice_id)); + assert!(offer.paths().is_empty()); + + let payment_id = PaymentId([1; 32]); + bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None).unwrap(); + expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id); + + let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap(); + alice.onion_messenger.handle_onion_message(&bob_id, &onion_message); + + let (invoice_request, _) = extract_invoice_request(alice, &onion_message); + let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext { + offer_id: offer.id(), + invoice_request: InvoiceRequestFields { + payer_id: invoice_request.payer_id(), + amount_msats: None, + features: InvoiceRequestFeatures::empty(), + quantity: None, + payer_note_truncated: None, + }, + }); + + let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap(); + bob.onion_messenger.handle_onion_message(&alice_id, &onion_message); + + let invoice = extract_invoice(bob, &onion_message); + route_bolt12_payment(bob, &[alice], &invoice); + expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id); + + claim_bolt12_payment(bob, &[alice], payment_context); expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id); } + +/// Checks that a refund without any blinded paths can be paid. Note that while the invoice is sent +/// directly using the node's pubkey, the payment still use blinded paths as required by the spec. +#[test] +fn pays_for_refund_without_blinded_paths() { + let chanmon_cfgs = create_chanmon_cfgs(2); + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); + let nodes = create_network(2, &node_cfgs, &node_chanmgrs); + + create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + + let alice = &nodes[0]; + let alice_id = alice.node.get_our_node_id(); + let bob = &nodes[1]; + let bob_id = bob.node.get_our_node_id(); + + let absolute_expiry = Duration::from_secs(u64::MAX); + let payment_id = PaymentId([1; 32]); + let refund = bob.node + .create_refund_builder( + "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None + ) + .unwrap() + .clear_paths() + .build().unwrap(); + assert_eq!(refund.payer_id(), bob_id); + assert!(refund.paths().is_empty()); + expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id); + + let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {}); + let expected_invoice = alice.node.request_refund_payment(&refund).unwrap(); + + let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap(); + bob.onion_messenger.handle_onion_message(&alice_id, &onion_message); + + let invoice = extract_invoice(bob, &onion_message); + assert_eq!(invoice, expected_invoice); + + route_bolt12_payment(bob, &[alice], &invoice); + expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id); + + claim_bolt12_payment(bob, &[alice], payment_context); + expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id); +} + +/// Fails creating an offer when a blinded path cannot be created without exposing the node's id. +#[test] +fn fails_creating_offer_without_blinded_paths() { + let chanmon_cfgs = create_chanmon_cfgs(2); + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); + let nodes = create_network(2, &node_cfgs, &node_chanmgrs); + + create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + + match nodes[0].node.create_offer_builder() { + Ok(_) => panic!("Expected error"), + Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths), + } +} + +/// Fails creating a refund when a blinded path cannot be created without exposing the node's id. +#[test] +fn fails_creating_refund_without_blinded_paths() { + let chanmon_cfgs = create_chanmon_cfgs(2); + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); + let nodes = create_network(2, &node_cfgs, &node_chanmgrs); + + create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + + let absolute_expiry = Duration::from_secs(u64::MAX); + let payment_id = PaymentId([1; 32]); + + match nodes[0].node.create_refund_builder( + "refund".to_string(), 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None + ) { + Ok(_) => panic!("Expected error"), + Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths), + } + + assert!(nodes[0].node.list_recent_payments().is_empty()); +} + +/// Fails creating an invoice request when the offer contains an unsupported chain. +#[test] +fn fails_creating_invoice_request_for_unsupported_chain() { + let chanmon_cfgs = create_chanmon_cfgs(2); + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); + let nodes = create_network(2, &node_cfgs, &node_chanmgrs); + + create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + + let alice = &nodes[0]; + let bob = &nodes[1]; + + let offer = alice.node + .create_offer_builder().unwrap() + .clear_chains() + .chain(Network::Signet) + .build().unwrap(); + + let payment_id = PaymentId([1; 32]); + match bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) { + Ok(_) => panic!("Expected error"), + Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedChain), + } +} + +/// Fails requesting a payment when the refund contains an unsupported chain. +#[test] +fn fails_sending_invoice_with_unsupported_chain_for_refund() { + let chanmon_cfgs = create_chanmon_cfgs(2); + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); + let nodes = create_network(2, &node_cfgs, &node_chanmgrs); + + create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + + let alice = &nodes[0]; + let bob = &nodes[1]; + + let absolute_expiry = Duration::from_secs(u64::MAX); + let payment_id = PaymentId([1; 32]); + let refund = bob.node + .create_refund_builder( + "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None + ) + .unwrap() + .chain(Network::Signet) + .build().unwrap(); + + match alice.node.request_refund_payment(&refund) { + Ok(_) => panic!("Expected error"), + Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedChain), + } +} + +/// Fails creating an invoice request when a blinded reply path cannot be created without exposing +/// the node's id. +#[test] +fn fails_creating_invoice_request_without_blinded_reply_path() { + let chanmon_cfgs = create_chanmon_cfgs(6); + let node_cfgs = create_node_cfgs(6, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]); + let nodes = create_network(6, &node_cfgs, &node_chanmgrs); + + create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000); + + let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]); + + disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]); + disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]); + + let offer = alice.node + .create_offer_builder().unwrap() + .amount_msats(10_000_000) + .build().unwrap(); + + let payment_id = PaymentId([1; 32]); + + match david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) { + Ok(_) => panic!("Expected error"), + Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths), + } + + assert!(nodes[0].node.list_recent_payments().is_empty()); +} + +#[test] +fn fails_creating_invoice_request_with_duplicate_payment_id() { + let chanmon_cfgs = create_chanmon_cfgs(6); + let node_cfgs = create_node_cfgs(6, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]); + let nodes = create_network(6, &node_cfgs, &node_chanmgrs); + + create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000); + + let (alice, _bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]); + + disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]); + + let offer = alice.node + .create_offer_builder().unwrap() + .amount_msats(10_000_000) + .build().unwrap(); + + let payment_id = PaymentId([1; 32]); + assert!( + david.node.pay_for_offer( + &offer, None, None, None, payment_id, Retry::Attempts(0), None + ).is_ok() + ); + expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id); + + match david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) { + Ok(_) => panic!("Expected error"), + Err(e) => assert_eq!(e, Bolt12SemanticError::DuplicatePaymentId), + } + + expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id); +} + +#[test] +fn fails_creating_refund_with_duplicate_payment_id() { + let chanmon_cfgs = create_chanmon_cfgs(2); + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); + let nodes = create_network(2, &node_cfgs, &node_chanmgrs); + + create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + + let absolute_expiry = Duration::from_secs(u64::MAX); + let payment_id = PaymentId([1; 32]); + assert!( + nodes[0].node.create_refund_builder( + "refund".to_string(), 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None + ).is_ok() + ); + expect_recent_payment!(nodes[0], RecentPaymentDetails::AwaitingInvoice, payment_id); + + match nodes[0].node.create_refund_builder( + "refund".to_string(), 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None + ) { + Ok(_) => panic!("Expected error"), + Err(e) => assert_eq!(e, Bolt12SemanticError::DuplicatePaymentId), + } + + expect_recent_payment!(nodes[0], RecentPaymentDetails::AwaitingInvoice, payment_id); +} + +#[test] +fn fails_sending_invoice_without_blinded_payment_paths_for_offer() { + let mut accept_forward_cfg = test_default_channel_config(); + accept_forward_cfg.accept_forwards_to_priv_channels = true; + + // Clearing route_blinding prevents forming any payment paths since the node is unannounced. + let mut features = channelmanager::provided_init_features(&accept_forward_cfg); + features.set_onion_messages_optional(); + features.clear_route_blinding(); + + let chanmon_cfgs = create_chanmon_cfgs(6); + let node_cfgs = create_node_cfgs(6, &chanmon_cfgs); + + *node_cfgs[1].override_init_features.borrow_mut() = Some(features); + + let node_chanmgrs = create_node_chanmgrs( + 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None] + ); + let nodes = create_network(6, &node_cfgs, &node_chanmgrs); + + create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000); + + let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]); + let alice_id = alice.node.get_our_node_id(); + let bob_id = bob.node.get_our_node_id(); + let charlie_id = charlie.node.get_our_node_id(); + let david_id = david.node.get_our_node_id(); + + disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]); + disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]); + + let offer = alice.node + .create_offer_builder().unwrap() + .amount_msats(10_000_000) + .build().unwrap(); + + let payment_id = PaymentId([1; 32]); + david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) + .unwrap(); + + connect_peers(david, bob); + + let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap(); + bob.onion_messenger.handle_onion_message(&david_id, &onion_message); + + connect_peers(alice, charlie); + + let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap(); + alice.onion_messenger.handle_onion_message(&bob_id, &onion_message); + + let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap(); + charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message); + + let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap(); + david.onion_messenger.handle_onion_message(&charlie_id, &onion_message); + + let invoice_error = extract_invoice_error(david, &onion_message); + assert_eq!(invoice_error, InvoiceError::from(Bolt12SemanticError::MissingPaths)); +} + +#[test] +fn fails_sending_invoice_without_blinded_payment_paths_for_refund() { + let mut accept_forward_cfg = test_default_channel_config(); + accept_forward_cfg.accept_forwards_to_priv_channels = true; + + // Clearing route_blinding prevents forming any payment paths since the node is unannounced. + let mut features = channelmanager::provided_init_features(&accept_forward_cfg); + features.set_onion_messages_optional(); + features.clear_route_blinding(); + + let chanmon_cfgs = create_chanmon_cfgs(6); + let node_cfgs = create_node_cfgs(6, &chanmon_cfgs); + + *node_cfgs[1].override_init_features.borrow_mut() = Some(features); + + let node_chanmgrs = create_node_chanmgrs( + 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None] + ); + let nodes = create_network(6, &node_cfgs, &node_chanmgrs); + + create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000); + + let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]); + + disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]); + disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]); + + let absolute_expiry = Duration::from_secs(u64::MAX); + let payment_id = PaymentId([1; 32]); + let refund = david.node + .create_refund_builder( + "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None + ) + .unwrap() + .build().unwrap(); + + match alice.node.request_refund_payment(&refund) { + Ok(_) => panic!("Expected error"), + Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths), + } +} + +#[test] +fn fails_paying_invoice_more_than_once() { + let mut accept_forward_cfg = test_default_channel_config(); + accept_forward_cfg.accept_forwards_to_priv_channels = true; + + let mut features = channelmanager::provided_init_features(&accept_forward_cfg); + features.set_onion_messages_optional(); + features.set_route_blinding_optional(); + + let chanmon_cfgs = create_chanmon_cfgs(6); + let node_cfgs = create_node_cfgs(6, &chanmon_cfgs); + + *node_cfgs[1].override_init_features.borrow_mut() = Some(features); + + let node_chanmgrs = create_node_chanmgrs( + 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None] + ); + let nodes = create_network(6, &node_cfgs, &node_chanmgrs); + + create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000); + create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000); + create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000); + + let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]); + let alice_id = alice.node.get_our_node_id(); + let bob_id = bob.node.get_our_node_id(); + let charlie_id = charlie.node.get_our_node_id(); + let david_id = david.node.get_our_node_id(); + + disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]); + disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]); + + let absolute_expiry = Duration::from_secs(u64::MAX); + let payment_id = PaymentId([1; 32]); + let refund = david.node + .create_refund_builder( + "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None + ) + .unwrap() + .build().unwrap(); + expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id); + + // Alice sends the first invoice + alice.node.request_refund_payment(&refund).unwrap(); + + connect_peers(alice, charlie); + + let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap(); + charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message); + + let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap(); + david.onion_messenger.handle_onion_message(&charlie_id, &onion_message); + + // David pays the first invoice + let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {}); + let invoice1 = extract_invoice(david, &onion_message); + + route_bolt12_payment(david, &[charlie, bob, alice], &invoice1); + expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id); + + claim_bolt12_payment(david, &[charlie, bob, alice], payment_context); + expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id); + + disconnect_peers(alice, &[charlie]); + + // Alice sends the second invoice + alice.node.request_refund_payment(&refund).unwrap(); + + connect_peers(alice, charlie); + connect_peers(david, bob); + + let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap(); + charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message); + + let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap(); + david.onion_messenger.handle_onion_message(&charlie_id, &onion_message); + + let invoice2 = extract_invoice(david, &onion_message); + assert_eq!(invoice1.payer_metadata(), invoice2.payer_metadata()); + + // David sends an error instead of paying the second invoice + let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap(); + bob.onion_messenger.handle_onion_message(&david_id, &onion_message); + + let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap(); + alice.onion_messenger.handle_onion_message(&bob_id, &onion_message); + + let invoice_error = extract_invoice_error(alice, &onion_message); + assert_eq!(invoice_error, InvoiceError::from_string("DuplicateInvoice".to_string())); +}