_ Git - rust-lightning/blob - lightning/src/ln/offers_tests.rs

   1 // This file is Copyright its original authors, visible in version control
   2 // history.
   3 //
   4 // This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
   5 // or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
   7 // You may not use this file except in accordance with one or both of these
   8 // licenses.
   9
  10 //! Functional tests for the BOLT 12 Offers payment flow.
  11 //!
  12 //! [`ChannelManager`] provides utilities to create [`Offer`]s and [`Refund`]s along with utilities
  13 //! to initiate and request payment for them, respectively. It also manages the payment flow via
  14 //! implementing [`OffersMessageHandler`]. This module tests that functionality, including the
  15 //! resulting [`Event`] generation.
  16 //!
  17 //! Two-node success tests use an announced channel:
  18 //!
  19 //! Alice --- Bob
  20 //!
  21 //! While two-node failure tests use an unannounced channel:
  22 //!
  23 //! Alice ... Bob
  24 //!
  25 //! Six-node tests use unannounced channels for the sender and recipient and announced channels for
  26 //! the rest of the network.
  27 //!
  28 //!               nodes[4]
  29 //!              /        \
  30 //!             /          \
  31 //!            /            \
  32 //! Alice ... Bob -------- Charlie ... David
  33 //!            \            /
  34 //!             \          /
  35 //!              \        /
  36 //!               nodes[5]
  37 //!
  38 //! Unnamed nodes are needed to ensure unannounced nodes can create two-hop blinded paths.
  39 //!
  40 //! Nodes without channels are disconnected and connected as needed to ensure that deterministic
  41 //! blinded paths are used.
  42
  43 use bitcoin::network::Network;
  44 use bitcoin::secp256k1::PublicKey;
  45 use core::time::Duration;
  46 use crate::blinded_path::{BlindedPath, IntroductionNode};
  47 use crate::blinded_path::payment::{Bolt12OfferContext, Bolt12RefundContext, PaymentContext};
  48 use crate::events::{Event, MessageSendEventsProvider, PaymentPurpose};
  49 use crate::ln::channelmanager::{Bolt12PaymentError, MAX_SHORT_LIVED_RELATIVE_EXPIRY, PaymentId, RecentPaymentDetails, Retry, self};
  50 use crate::ln::functional_test_utils::*;
  51 use crate::ln::msgs::{ChannelMessageHandler, Init, NodeAnnouncement, OnionMessage, OnionMessageHandler, RoutingMessageHandler, SocketAddress, UnsignedGossipMessage, UnsignedNodeAnnouncement};
  52 use crate::ln::outbound_payment::IDEMPOTENCY_TIMEOUT_TICKS;
  53 use crate::offers::invoice::Bolt12Invoice;
  54 use crate::offers::invoice_error::InvoiceError;
  55 use crate::offers::invoice_request::{InvoiceRequest, InvoiceRequestFields};
  56 use crate::offers::parse::Bolt12SemanticError;
  57 use crate::onion_message::messenger::PeeledOnion;
  58 use crate::onion_message::offers::OffersMessage;
  59 use crate::onion_message::packet::ParsedOnionMessageContents;
  60 use crate::routing::gossip::{NodeAlias, NodeId};
  61 use crate::sign::{NodeSigner, Recipient};
  62
  63 use crate::prelude::*;
  64
  65 macro_rules! expect_recent_payment {
  66         ($node: expr, $payment_state: path, $payment_id: expr) => {
  67                 match $node.node.list_recent_payments().first() {
  68                         Some(&$payment_state { payment_id: actual_payment_id, .. }) => {
  69                                 assert_eq!($payment_id, actual_payment_id);
  70                         },
  71                         Some(_) => panic!("Unexpected recent payment state"),
  72                         None => panic!("No recent payments"),
  73                 }
  74         }
  75 }
  76
  77 fn connect_peers<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>) {
  78         let node_id_a = node_a.node.get_our_node_id();
  79         let node_id_b = node_b.node.get_our_node_id();
  80
  81         let init_a = Init {
  82                 features: node_a.init_features(&node_id_b),
  83                 networks: None,
  84                 remote_network_address: None,
  85         };
  86         let init_b = Init {
  87                 features: node_b.init_features(&node_id_a),
  88                 networks: None,
  89                 remote_network_address: None,
  90         };
  91
  92         node_a.node.peer_connected(&node_id_b, &init_b, true).unwrap();
  93         node_b.node.peer_connected(&node_id_a, &init_a, false).unwrap();
  94         node_a.onion_messenger.peer_connected(&node_id_b, &init_b, true).unwrap();
  95         node_b.onion_messenger.peer_connected(&node_id_a, &init_a, false).unwrap();
  96 }
  97
  98 fn disconnect_peers<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, peers: &[&Node<'a, 'b, 'c>]) {
  99         for node_b in peers {
 100                 node_a.node.peer_disconnected(&node_b.node.get_our_node_id());
 101                 node_b.node.peer_disconnected(&node_a.node.get_our_node_id());
 102                 node_a.onion_messenger.peer_disconnected(&node_b.node.get_our_node_id());
 103                 node_b.onion_messenger.peer_disconnected(&node_a.node.get_our_node_id());
 104         }
 105 }
 106
 107 fn announce_node_address<'a, 'b, 'c>(
 108         node: &Node<'a, 'b, 'c>, peers: &[&Node<'a, 'b, 'c>], address: SocketAddress,
 109 ) {
 110         let features = node.onion_messenger.provided_node_features()
 111                 | node.gossip_sync.provided_node_features();
 112         let rgb = [0u8; 3];
 113         let announcement = UnsignedNodeAnnouncement {
 114                 features,
 115                 timestamp: 1000,
 116                 node_id: NodeId::from_pubkey(&node.keys_manager.get_node_id(Recipient::Node).unwrap()),
 117                 rgb,
 118                 alias: NodeAlias([0u8; 32]),
 119                 addresses: vec![address],
 120                 excess_address_data: Vec::new(),
 121                 excess_data: Vec::new(),
 122         };
 123         let signature = node.keys_manager.sign_gossip_message(
 124                 UnsignedGossipMessage::NodeAnnouncement(&announcement)
 125         ).unwrap();
 126
 127         let msg = NodeAnnouncement {
 128                 signature,
 129                 contents: announcement
 130         };
 131
 132         node.gossip_sync.handle_node_announcement(&msg).unwrap();
 133         for peer in peers {
 134                 peer.gossip_sync.handle_node_announcement(&msg).unwrap();
 135         }
 136 }
 137
 138 fn resolve_introduction_node<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, path: &BlindedPath) -> PublicKey {
 139         path.public_introduction_node_id(&node.network_graph.read_only())
 140                 .and_then(|node_id| node_id.as_pubkey().ok())
 141                 .unwrap()
 142 }
 143
 144 fn route_bolt12_payment<'a, 'b, 'c>(
 145         node: &Node<'a, 'b, 'c>, path: &[&Node<'a, 'b, 'c>], invoice: &Bolt12Invoice
 146 ) {
 147         // Monitor added when handling the invoice onion message.
 148         check_added_monitors(node, 1);
 149
 150         let mut events = node.node.get_and_clear_pending_msg_events();
 151         assert_eq!(events.len(), 1);
 152         let ev = remove_first_msg_event_to_node(&path[0].node.get_our_node_id(), &mut events);
 153
 154         // Use a fake payment_hash and bypass checking for the PaymentClaimable event since the
 155         // invoice contains the payment_hash but it was encrypted inside an onion message.
 156         let amount_msats = invoice.amount_msats();
 157         let payment_hash = invoice.payment_hash();
 158         let args = PassAlongPathArgs::new(node, path, amount_msats, payment_hash, ev)
 159                 .without_clearing_recipient_events();
 160         do_pass_along_path(args);
 161 }
 162
 163 fn claim_bolt12_payment<'a, 'b, 'c>(
 164         node: &Node<'a, 'b, 'c>, path: &[&Node<'a, 'b, 'c>], expected_payment_context: PaymentContext
 165 ) {
 166         let recipient = &path[path.len() - 1];
 167         let payment_purpose = match get_event!(recipient, Event::PaymentClaimable) {
 168                 Event::PaymentClaimable { purpose, .. } => purpose,
 169                 _ => panic!("No Event::PaymentClaimable"),
 170         };
 171         let payment_preimage = match payment_purpose.preimage() {
 172                 Some(preimage) => preimage,
 173                 None => panic!("No preimage in Event::PaymentClaimable"),
 174         };
 175         match payment_purpose {
 176                 PaymentPurpose::Bolt12OfferPayment { payment_context, .. } => {
 177                         assert_eq!(PaymentContext::Bolt12Offer(payment_context), expected_payment_context);
 178                 },
 179                 PaymentPurpose::Bolt12RefundPayment { payment_context, .. } => {
 180                         assert_eq!(PaymentContext::Bolt12Refund(payment_context), expected_payment_context);
 181                 },
 182                 _ => panic!("Unexpected payment purpose: {:?}", payment_purpose),
 183         }
 184         claim_payment(node, path, payment_preimage);
 185 }
 186
 187 fn extract_invoice_request<'a, 'b, 'c>(
 188         node: &Node<'a, 'b, 'c>, message: &OnionMessage
 189 ) -> (InvoiceRequest, BlindedPath) {
 190         match node.onion_messenger.peel_onion_message(message) {
 191                 Ok(PeeledOnion::Receive(message, _, reply_path)) => match message {
 192                         ParsedOnionMessageContents::Offers(offers_message) => match offers_message {
 193                                 OffersMessage::InvoiceRequest(invoice_request) => (invoice_request, reply_path.unwrap()),
 194                                 OffersMessage::Invoice(invoice) => panic!("Unexpected invoice: {:?}", invoice),
 195                                 OffersMessage::StaticInvoice(invoice) => panic!("Unexpected static invoice: {:?}", invoice),
 196                                 OffersMessage::InvoiceError(error) => panic!("Unexpected invoice_error: {:?}", error),
 197                         },
 198                         ParsedOnionMessageContents::AsyncPayments(message) => panic!("Unexpected async payments message: {:?}", message),
 199                         ParsedOnionMessageContents::Custom(message) => panic!("Unexpected custom message: {:?}", message),
 200                 },
 201                 Ok(PeeledOnion::Forward(_, _)) => panic!("Unexpected onion message forward"),
 202                 Err(e) => panic!("Failed to process onion message {:?}", e),
 203         }
 204 }
 205
 206 fn extract_invoice<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, message: &OnionMessage) -> Bolt12Invoice {
 207         match node.onion_messenger.peel_onion_message(message) {
 208                 Ok(PeeledOnion::Receive(message, _, _)) => match message {
 209                         ParsedOnionMessageContents::Offers(offers_message) => match offers_message {
 210                                 OffersMessage::InvoiceRequest(invoice_request) => panic!("Unexpected invoice_request: {:?}", invoice_request),
 211                                 OffersMessage::Invoice(invoice) => invoice,
 212                                 OffersMessage::StaticInvoice(invoice) => panic!("Unexpected static invoice: {:?}", invoice),
 213                                 OffersMessage::InvoiceError(error) => panic!("Unexpected invoice_error: {:?}", error),
 214                         },
 215                         ParsedOnionMessageContents::AsyncPayments(message) => panic!("Unexpected async payments message: {:?}", message),
 216                         ParsedOnionMessageContents::Custom(message) => panic!("Unexpected custom message: {:?}", message),
 217                 },
 218                 Ok(PeeledOnion::Forward(_, _)) => panic!("Unexpected onion message forward"),
 219                 Err(e) => panic!("Failed to process onion message {:?}", e),
 220         }
 221 }
 222
 223 fn extract_invoice_error<'a, 'b, 'c>(
 224         node: &Node<'a, 'b, 'c>, message: &OnionMessage
 225 ) -> InvoiceError {
 226         match node.onion_messenger.peel_onion_message(message) {
 227                 Ok(PeeledOnion::Receive(message, _, _)) => match message {
 228                         ParsedOnionMessageContents::Offers(offers_message) => match offers_message {
 229                                 OffersMessage::InvoiceRequest(invoice_request) => panic!("Unexpected invoice_request: {:?}", invoice_request),
 230                                 OffersMessage::Invoice(invoice) => panic!("Unexpected invoice: {:?}", invoice),
 231                                 OffersMessage::StaticInvoice(invoice) => panic!("Unexpected invoice: {:?}", invoice),
 232                                 OffersMessage::InvoiceError(error) => error,
 233                         },
 234                         ParsedOnionMessageContents::AsyncPayments(message) => panic!("Unexpected async payments message: {:?}", message),
 235                         ParsedOnionMessageContents::Custom(message) => panic!("Unexpected custom message: {:?}", message),
 236                 },
 237                 Ok(PeeledOnion::Forward(_, _)) => panic!("Unexpected onion message forward"),
 238                 Err(e) => panic!("Failed to process onion message {:?}", e),
 239         }
 240 }
 241
 242 /// Checks that blinded paths without Tor-only nodes are preferred when constructing an offer.
 243 #[test]
 244 fn prefers_non_tor_nodes_in_blinded_paths() {
 245         let mut accept_forward_cfg = test_default_channel_config();
 246         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 247
 248         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 249         features.set_onion_messages_optional();
 250         features.set_route_blinding_optional();
 251
 252         let chanmon_cfgs = create_chanmon_cfgs(6);
 253         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 254
 255         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 256
 257         let node_chanmgrs = create_node_chanmgrs(
 258                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 259         );
 260         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 261
 262         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 263         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 264         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 265         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 266         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 267         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 268         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 269
 270         // Add an extra channel so that more than one of Bob's peers have MIN_PEER_CHANNELS.
 271         create_announced_chan_between_nodes_with_value(&nodes, 4, 5, 10_000_000, 1_000_000_000);
 272
 273         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 274         let bob_id = bob.node.get_our_node_id();
 275         let charlie_id = charlie.node.get_our_node_id();
 276
 277         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 278         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 279
 280         let tor = SocketAddress::OnionV2([255, 254, 253, 252, 251, 250, 249, 248, 247, 246, 38, 7]);
 281         announce_node_address(charlie, &[alice, bob, david, &nodes[4], &nodes[5]], tor.clone());
 282
 283         let offer = bob.node
 284                 .create_offer_builder(None).unwrap()
 285                 .amount_msats(10_000_000)
 286                 .build().unwrap();
 287         assert_ne!(offer.signing_pubkey(), Some(bob_id));
 288         assert!(!offer.paths().is_empty());
 289         for path in offer.paths() {
 290                 let introduction_node_id = resolve_introduction_node(david, &path);
 291                 assert_ne!(introduction_node_id, bob_id);
 292                 assert_ne!(introduction_node_id, charlie_id);
 293         }
 294
 295         // Use a one-hop blinded path when Bob is announced and all his peers are Tor-only.
 296         announce_node_address(&nodes[4], &[alice, bob, charlie, david, &nodes[5]], tor.clone());
 297         announce_node_address(&nodes[5], &[alice, bob, charlie, david, &nodes[4]], tor.clone());
 298
 299         let offer = bob.node
 300                 .create_offer_builder(None).unwrap()
 301                 .amount_msats(10_000_000)
 302                 .build().unwrap();
 303         assert_ne!(offer.signing_pubkey(), Some(bob_id));
 304         assert!(!offer.paths().is_empty());
 305         for path in offer.paths() {
 306                 let introduction_node_id = resolve_introduction_node(david, &path);
 307                 assert_eq!(introduction_node_id, bob_id);
 308         }
 309 }
 310
 311 /// Checks that blinded paths prefer an introduction node that is the most connected.
 312 #[test]
 313 fn prefers_more_connected_nodes_in_blinded_paths() {
 314         let mut accept_forward_cfg = test_default_channel_config();
 315         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 316
 317         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 318         features.set_onion_messages_optional();
 319         features.set_route_blinding_optional();
 320
 321         let chanmon_cfgs = create_chanmon_cfgs(6);
 322         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 323
 324         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 325
 326         let node_chanmgrs = create_node_chanmgrs(
 327                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 328         );
 329         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 330
 331         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 332         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 333         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 334         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 335         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 336         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 337         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 338
 339         // Add extra channels so that more than one of Bob's peers have MIN_PEER_CHANNELS and one has
 340         // more than the others.
 341         create_announced_chan_between_nodes_with_value(&nodes, 0, 4, 10_000_000, 1_000_000_000);
 342         create_announced_chan_between_nodes_with_value(&nodes, 3, 4, 10_000_000, 1_000_000_000);
 343
 344         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 345         let bob_id = bob.node.get_our_node_id();
 346
 347         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 348         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 349
 350         let offer = bob.node
 351                 .create_offer_builder(None).unwrap()
 352                 .amount_msats(10_000_000)
 353                 .build().unwrap();
 354         assert_ne!(offer.signing_pubkey(), Some(bob_id));
 355         assert!(!offer.paths().is_empty());
 356         for path in offer.paths() {
 357                 let introduction_node_id = resolve_introduction_node(david, &path);
 358                 assert_eq!(introduction_node_id, nodes[4].node.get_our_node_id());
 359         }
 360 }
 361
 362 /// Checks that blinded paths are compact for short-lived offers.
 363 #[test]
 364 fn creates_short_lived_offer() {
 365         let chanmon_cfgs = create_chanmon_cfgs(2);
 366         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 367         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 368         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 369
 370         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 371
 372         let alice = &nodes[0];
 373         let alice_id = alice.node.get_our_node_id();
 374         let bob = &nodes[1];
 375
 376         let absolute_expiry = alice.node.duration_since_epoch() + MAX_SHORT_LIVED_RELATIVE_EXPIRY;
 377         let offer = alice.node
 378                 .create_offer_builder(Some(absolute_expiry)).unwrap()
 379                 .build().unwrap();
 380         assert_eq!(offer.absolute_expiry(), Some(absolute_expiry));
 381         assert!(!offer.paths().is_empty());
 382         for path in offer.paths() {
 383                 let introduction_node_id = resolve_introduction_node(bob, &path);
 384                 assert_eq!(introduction_node_id, alice_id);
 385                 assert!(matches!(path.introduction_node, IntroductionNode::DirectedShortChannelId(..)));
 386         }
 387 }
 388
 389 /// Checks that blinded paths are not compact for long-lived offers.
 390 #[test]
 391 fn creates_long_lived_offer() {
 392         let chanmon_cfgs = create_chanmon_cfgs(2);
 393         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 394         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 395         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 396
 397         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 398
 399         let alice = &nodes[0];
 400         let alice_id = alice.node.get_our_node_id();
 401
 402         let absolute_expiry = alice.node.duration_since_epoch() + MAX_SHORT_LIVED_RELATIVE_EXPIRY
 403                 + Duration::from_secs(1);
 404         let offer = alice.node
 405                 .create_offer_builder(Some(absolute_expiry))
 406                 .unwrap()
 407                 .build().unwrap();
 408         assert_eq!(offer.absolute_expiry(), Some(absolute_expiry));
 409         assert!(!offer.paths().is_empty());
 410         for path in offer.paths() {
 411                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
 412         }
 413
 414         let offer = alice.node
 415                 .create_offer_builder(None).unwrap()
 416                 .build().unwrap();
 417         assert_eq!(offer.absolute_expiry(), None);
 418         assert!(!offer.paths().is_empty());
 419         for path in offer.paths() {
 420                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
 421         }
 422 }
 423
 424 /// Checks that blinded paths are compact for short-lived refunds.
 425 #[test]
 426 fn creates_short_lived_refund() {
 427         let chanmon_cfgs = create_chanmon_cfgs(2);
 428         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 429         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 430         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 431
 432         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 433
 434         let alice = &nodes[0];
 435         let bob = &nodes[1];
 436         let bob_id = bob.node.get_our_node_id();
 437
 438         let absolute_expiry = bob.node.duration_since_epoch() + MAX_SHORT_LIVED_RELATIVE_EXPIRY;
 439         let payment_id = PaymentId([1; 32]);
 440         let refund = bob.node
 441                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
 442                 .unwrap()
 443                 .build().unwrap();
 444         assert_eq!(refund.absolute_expiry(), Some(absolute_expiry));
 445         assert!(!refund.paths().is_empty());
 446         for path in refund.paths() {
 447                 let introduction_node_id = resolve_introduction_node(alice, &path);
 448                 assert_eq!(introduction_node_id, bob_id);
 449                 assert!(matches!(path.introduction_node, IntroductionNode::DirectedShortChannelId(..)));
 450         }
 451 }
 452
 453 /// Checks that blinded paths are not compact for long-lived refunds.
 454 #[test]
 455 fn creates_long_lived_refund() {
 456         let chanmon_cfgs = create_chanmon_cfgs(2);
 457         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 458         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 459         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 460
 461         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 462
 463         let bob = &nodes[1];
 464         let bob_id = bob.node.get_our_node_id();
 465
 466         let absolute_expiry = bob.node.duration_since_epoch() + MAX_SHORT_LIVED_RELATIVE_EXPIRY
 467                 + Duration::from_secs(1);
 468         let payment_id = PaymentId([1; 32]);
 469         let refund = bob.node
 470                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
 471                 .unwrap()
 472                 .build().unwrap();
 473         assert_eq!(refund.absolute_expiry(), Some(absolute_expiry));
 474         assert!(!refund.paths().is_empty());
 475         for path in refund.paths() {
 476                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 477         }
 478 }
 479
 480 /// Checks that an offer can be paid through blinded paths and that ephemeral pubkeys are used
 481 /// rather than exposing a node's pubkey.
 482 #[test]
 483 fn creates_and_pays_for_offer_using_two_hop_blinded_path() {
 484         let mut accept_forward_cfg = test_default_channel_config();
 485         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 486
 487         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 488         features.set_onion_messages_optional();
 489         features.set_route_blinding_optional();
 490
 491         let chanmon_cfgs = create_chanmon_cfgs(6);
 492         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 493
 494         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 495
 496         let node_chanmgrs = create_node_chanmgrs(
 497                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 498         );
 499         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 500
 501         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 502         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 503         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 504         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 505         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 506         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 507         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 508
 509         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 510         let alice_id = alice.node.get_our_node_id();
 511         let bob_id = bob.node.get_our_node_id();
 512         let charlie_id = charlie.node.get_our_node_id();
 513         let david_id = david.node.get_our_node_id();
 514
 515         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 516         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 517
 518         let offer = alice.node
 519                 .create_offer_builder(None)
 520                 .unwrap()
 521                 .amount_msats(10_000_000)
 522                 .build().unwrap();
 523         assert_ne!(offer.signing_pubkey(), Some(alice_id));
 524         assert!(!offer.paths().is_empty());
 525         for path in offer.paths() {
 526                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 527         }
 528
 529         let payment_id = PaymentId([1; 32]);
 530         david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None)
 531                 .unwrap();
 532         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 533
 534         connect_peers(david, bob);
 535
 536         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 537         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
 538
 539         connect_peers(alice, charlie);
 540
 541         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 542         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 543
 544         let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message);
 545         let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext {
 546                 offer_id: offer.id(),
 547                 invoice_request: InvoiceRequestFields {
 548                         payer_id: invoice_request.payer_id(),
 549                         quantity: None,
 550                         payer_note_truncated: None,
 551                 },
 552         });
 553         assert_eq!(invoice_request.amount_msats(), None);
 554         assert_ne!(invoice_request.payer_id(), david_id);
 555         assert_eq!(reply_path.introduction_node, IntroductionNode::NodeId(charlie_id));
 556
 557         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
 558         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 559
 560         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
 561         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
 562
 563         let invoice = extract_invoice(david, &onion_message);
 564         assert_eq!(invoice.amount_msats(), 10_000_000);
 565         assert_ne!(invoice.signing_pubkey(), alice_id);
 566         assert!(!invoice.payment_paths().is_empty());
 567         for (_, path) in invoice.payment_paths() {
 568                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 569         }
 570
 571         route_bolt12_payment(david, &[charlie, bob, alice], &invoice);
 572         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
 573
 574         claim_bolt12_payment(david, &[charlie, bob, alice], payment_context);
 575         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
 576 }
 577
 578 /// Checks that a refund can be paid through blinded paths and that ephemeral pubkeys are used
 579 /// rather than exposing a node's pubkey.
 580 #[test]
 581 fn creates_and_pays_for_refund_using_two_hop_blinded_path() {
 582         let mut accept_forward_cfg = test_default_channel_config();
 583         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 584
 585         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 586         features.set_onion_messages_optional();
 587         features.set_route_blinding_optional();
 588
 589         let chanmon_cfgs = create_chanmon_cfgs(6);
 590         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 591
 592         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 593
 594         let node_chanmgrs = create_node_chanmgrs(
 595                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 596         );
 597         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 598
 599         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 600         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 601         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 602         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 603         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 604         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 605         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 606
 607         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 608         let alice_id = alice.node.get_our_node_id();
 609         let bob_id = bob.node.get_our_node_id();
 610         let charlie_id = charlie.node.get_our_node_id();
 611         let david_id = david.node.get_our_node_id();
 612
 613         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 614         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 615
 616         let absolute_expiry = Duration::from_secs(u64::MAX);
 617         let payment_id = PaymentId([1; 32]);
 618         let refund = david.node
 619                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
 620                 .unwrap()
 621                 .build().unwrap();
 622         assert_eq!(refund.amount_msats(), 10_000_000);
 623         assert_eq!(refund.absolute_expiry(), Some(absolute_expiry));
 624         assert_ne!(refund.payer_id(), david_id);
 625         assert!(!refund.paths().is_empty());
 626         for path in refund.paths() {
 627                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(charlie_id));
 628         }
 629         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 630
 631         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
 632         let expected_invoice = alice.node.request_refund_payment(&refund).unwrap();
 633
 634         connect_peers(alice, charlie);
 635
 636         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
 637         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 638
 639         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
 640         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
 641
 642         let invoice = extract_invoice(david, &onion_message);
 643         assert_eq!(invoice, expected_invoice);
 644
 645         assert_eq!(invoice.amount_msats(), 10_000_000);
 646         assert_ne!(invoice.signing_pubkey(), alice_id);
 647         assert!(!invoice.payment_paths().is_empty());
 648         for (_, path) in invoice.payment_paths() {
 649                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 650         }
 651
 652         route_bolt12_payment(david, &[charlie, bob, alice], &invoice);
 653         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
 654
 655         claim_bolt12_payment(david, &[charlie, bob, alice], payment_context);
 656         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
 657 }
 658
 659 /// Checks that an offer can be paid through a one-hop blinded path and that ephemeral pubkeys are
 660 /// used rather than exposing a node's pubkey. However, the node's pubkey is still used as the
 661 /// introduction node of the blinded path.
 662 #[test]
 663 fn creates_and_pays_for_offer_using_one_hop_blinded_path() {
 664         let chanmon_cfgs = create_chanmon_cfgs(2);
 665         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 666         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 667         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 668
 669         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 670
 671         let alice = &nodes[0];
 672         let alice_id = alice.node.get_our_node_id();
 673         let bob = &nodes[1];
 674         let bob_id = bob.node.get_our_node_id();
 675
 676         let offer = alice.node
 677                 .create_offer_builder(None).unwrap()
 678                 .amount_msats(10_000_000)
 679                 .build().unwrap();
 680         assert_ne!(offer.signing_pubkey(), Some(alice_id));
 681         assert!(!offer.paths().is_empty());
 682         for path in offer.paths() {
 683                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
 684         }
 685
 686         let payment_id = PaymentId([1; 32]);
 687         bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None).unwrap();
 688         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 689
 690         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 691         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 692
 693         let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message);
 694         let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext {
 695                 offer_id: offer.id(),
 696                 invoice_request: InvoiceRequestFields {
 697                         payer_id: invoice_request.payer_id(),
 698                         quantity: None,
 699                         payer_note_truncated: None,
 700                 },
 701         });
 702         assert_eq!(invoice_request.amount_msats(), None);
 703         assert_ne!(invoice_request.payer_id(), bob_id);
 704         assert_eq!(reply_path.introduction_node, IntroductionNode::NodeId(bob_id));
 705
 706         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 707         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 708
 709         let invoice = extract_invoice(bob, &onion_message);
 710         assert_eq!(invoice.amount_msats(), 10_000_000);
 711         assert_ne!(invoice.signing_pubkey(), alice_id);
 712         assert!(!invoice.payment_paths().is_empty());
 713         for (_, path) in invoice.payment_paths() {
 714                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
 715         }
 716
 717         route_bolt12_payment(bob, &[alice], &invoice);
 718         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 719
 720         claim_bolt12_payment(bob, &[alice], payment_context);
 721         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 722 }
 723
 724 /// Checks that a refund can be paid through a one-hop blinded path and that ephemeral pubkeys are
 725 /// used rather than exposing a node's pubkey. However, the node's pubkey is still used as the
 726 /// introduction node of the blinded path.
 727 #[test]
 728 fn creates_and_pays_for_refund_using_one_hop_blinded_path() {
 729         let chanmon_cfgs = create_chanmon_cfgs(2);
 730         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 731         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 732         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 733
 734         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 735
 736         let alice = &nodes[0];
 737         let alice_id = alice.node.get_our_node_id();
 738         let bob = &nodes[1];
 739         let bob_id = bob.node.get_our_node_id();
 740
 741         let absolute_expiry = Duration::from_secs(u64::MAX);
 742         let payment_id = PaymentId([1; 32]);
 743         let refund = bob.node
 744                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
 745                 .unwrap()
 746                 .build().unwrap();
 747         assert_eq!(refund.amount_msats(), 10_000_000);
 748         assert_eq!(refund.absolute_expiry(), Some(absolute_expiry));
 749         assert_ne!(refund.payer_id(), bob_id);
 750         assert!(!refund.paths().is_empty());
 751         for path in refund.paths() {
 752                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 753         }
 754         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 755
 756         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
 757         let expected_invoice = alice.node.request_refund_payment(&refund).unwrap();
 758
 759         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 760         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 761
 762         let invoice = extract_invoice(bob, &onion_message);
 763         assert_eq!(invoice, expected_invoice);
 764
 765         assert_eq!(invoice.amount_msats(), 10_000_000);
 766         assert_ne!(invoice.signing_pubkey(), alice_id);
 767         assert!(!invoice.payment_paths().is_empty());
 768         for (_, path) in invoice.payment_paths() {
 769                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
 770         }
 771
 772         route_bolt12_payment(bob, &[alice], &invoice);
 773         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 774
 775         claim_bolt12_payment(bob, &[alice], payment_context);
 776         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 777 }
 778
 779 /// Checks that an invoice for an offer without any blinded paths can be requested. Note that while
 780 /// the requested is sent directly using the node's pubkey, the response and the payment still use
 781 /// blinded paths as required by the spec.
 782 #[test]
 783 fn pays_for_offer_without_blinded_paths() {
 784         let chanmon_cfgs = create_chanmon_cfgs(2);
 785         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 786         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 787         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 788
 789         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 790
 791         let alice = &nodes[0];
 792         let alice_id = alice.node.get_our_node_id();
 793         let bob = &nodes[1];
 794         let bob_id = bob.node.get_our_node_id();
 795
 796         let offer = alice.node
 797                 .create_offer_builder(None).unwrap()
 798                 .clear_paths()
 799                 .amount_msats(10_000_000)
 800                 .build().unwrap();
 801         assert_eq!(offer.signing_pubkey(), Some(alice_id));
 802         assert!(offer.paths().is_empty());
 803
 804         let payment_id = PaymentId([1; 32]);
 805         bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None).unwrap();
 806         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 807
 808         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 809         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 810
 811         let (invoice_request, _) = extract_invoice_request(alice, &onion_message);
 812         let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext {
 813                 offer_id: offer.id(),
 814                 invoice_request: InvoiceRequestFields {
 815                         payer_id: invoice_request.payer_id(),
 816                         quantity: None,
 817                         payer_note_truncated: None,
 818                 },
 819         });
 820
 821         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 822         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 823
 824         let invoice = extract_invoice(bob, &onion_message);
 825         route_bolt12_payment(bob, &[alice], &invoice);
 826         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 827
 828         claim_bolt12_payment(bob, &[alice], payment_context);
 829         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 830 }
 831
 832 /// Checks that a refund without any blinded paths can be paid. Note that while the invoice is sent
 833 /// directly using the node's pubkey, the payment still use blinded paths as required by the spec.
 834 #[test]
 835 fn pays_for_refund_without_blinded_paths() {
 836         let chanmon_cfgs = create_chanmon_cfgs(2);
 837         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 838         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 839         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 840
 841         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 842
 843         let alice = &nodes[0];
 844         let alice_id = alice.node.get_our_node_id();
 845         let bob = &nodes[1];
 846         let bob_id = bob.node.get_our_node_id();
 847
 848         let absolute_expiry = Duration::from_secs(u64::MAX);
 849         let payment_id = PaymentId([1; 32]);
 850         let refund = bob.node
 851                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
 852                 .unwrap()
 853                 .clear_paths()
 854                 .build().unwrap();
 855         assert_eq!(refund.payer_id(), bob_id);
 856         assert!(refund.paths().is_empty());
 857         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 858
 859         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
 860         let expected_invoice = alice.node.request_refund_payment(&refund).unwrap();
 861
 862         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 863         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 864
 865         let invoice = extract_invoice(bob, &onion_message);
 866         assert_eq!(invoice, expected_invoice);
 867
 868         route_bolt12_payment(bob, &[alice], &invoice);
 869         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 870
 871         claim_bolt12_payment(bob, &[alice], payment_context);
 872         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 873 }
 874
 875 /// Checks that a deferred invoice can be paid asynchronously from an Event::InvoiceReceived.
 876 #[test]
 877 fn pays_bolt12_invoice_asynchronously() {
 878         let mut manually_pay_cfg = test_default_channel_config();
 879         manually_pay_cfg.manually_handle_bolt12_invoices = true;
 880
 881         let chanmon_cfgs = create_chanmon_cfgs(2);
 882         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 883         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, Some(manually_pay_cfg)]);
 884         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 885
 886         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 887
 888         let alice = &nodes[0];
 889         let alice_id = alice.node.get_our_node_id();
 890         let bob = &nodes[1];
 891         let bob_id = bob.node.get_our_node_id();
 892
 893         let offer = alice.node
 894                 .create_offer_builder(None).unwrap()
 895                 .amount_msats(10_000_000)
 896                 .build().unwrap();
 897
 898         let payment_id = PaymentId([1; 32]);
 899         bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None).unwrap();
 900         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 901
 902         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 903         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 904
 905         let (invoice_request, _) = extract_invoice_request(alice, &onion_message);
 906         let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext {
 907                 offer_id: offer.id(),
 908                 invoice_request: InvoiceRequestFields {
 909                         payer_id: invoice_request.payer_id(),
 910                         quantity: None,
 911                         payer_note_truncated: None,
 912                 },
 913         });
 914
 915         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 916         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 917
 918         let invoice = match get_event!(bob, Event::InvoiceReceived) {
 919                 Event::InvoiceReceived { payment_id: actual_payment_id, invoice, .. } => {
 920                         assert_eq!(actual_payment_id, payment_id);
 921                         invoice
 922                 },
 923                 _ => panic!("No Event::InvoiceReceived"),
 924         };
 925         assert_eq!(invoice.amount_msats(), 10_000_000);
 926         assert_ne!(invoice.signing_pubkey(), alice_id);
 927         assert!(!invoice.payment_paths().is_empty());
 928         for (_, path) in invoice.payment_paths() {
 929                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
 930         }
 931
 932         assert!(bob.node.send_payment_for_bolt12_invoice(&invoice).is_ok());
 933         assert_eq!(
 934                 bob.node.send_payment_for_bolt12_invoice(&invoice),
 935                 Err(Bolt12PaymentError::DuplicateInvoice),
 936         );
 937
 938         route_bolt12_payment(bob, &[alice], &invoice);
 939         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 940
 941         claim_bolt12_payment(bob, &[alice], payment_context);
 942         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 943
 944         assert_eq!(
 945                 bob.node.send_payment_for_bolt12_invoice(&invoice),
 946                 Err(Bolt12PaymentError::DuplicateInvoice),
 947         );
 948
 949         for _ in 0..=IDEMPOTENCY_TIMEOUT_TICKS {
 950                 bob.node.timer_tick_occurred();
 951         }
 952
 953         assert_eq!(
 954                 bob.node.send_payment_for_bolt12_invoice(&invoice),
 955                 Err(Bolt12PaymentError::UnexpectedInvoice),
 956         );
 957 }
 958
 959 /// Fails creating an offer when a blinded path cannot be created without exposing the node's id.
 960 #[test]
 961 fn fails_creating_offer_without_blinded_paths() {
 962         let chanmon_cfgs = create_chanmon_cfgs(2);
 963         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 964         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 965         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 966
 967         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 968
 969         match nodes[0].node.create_offer_builder(None) {
 970                 Ok(_) => panic!("Expected error"),
 971                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 972         }
 973 }
 974
 975 /// Fails creating a refund when a blinded path cannot be created without exposing the node's id.
 976 #[test]
 977 fn fails_creating_refund_without_blinded_paths() {
 978         let chanmon_cfgs = create_chanmon_cfgs(2);
 979         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 980         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 981         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 982
 983         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 984
 985         let absolute_expiry = Duration::from_secs(u64::MAX);
 986         let payment_id = PaymentId([1; 32]);
 987
 988         match nodes[0].node.create_refund_builder(
 989                 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 990         ) {
 991                 Ok(_) => panic!("Expected error"),
 992                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 993         }
 994
 995         assert!(nodes[0].node.list_recent_payments().is_empty());
 996 }
 997
 998 /// Fails creating or paying an offer when a blinded path cannot be created because no peers are
 999 /// connected.
1000 #[test]
1001 fn fails_creating_or_paying_for_offer_without_connected_peers() {
1002         let chanmon_cfgs = create_chanmon_cfgs(6);
1003         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
1004         let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
1005         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1006
1007         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1008         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
1009         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
1010         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
1011         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
1012         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
1013         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
1014
1015         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
1016
1017         disconnect_peers(alice, &[bob, charlie, david, &nodes[4], &nodes[5]]);
1018         disconnect_peers(david, &[bob, charlie, &nodes[4], &nodes[5]]);
1019
1020         let absolute_expiry = alice.node.duration_since_epoch() + MAX_SHORT_LIVED_RELATIVE_EXPIRY;
1021         match alice.node.create_offer_builder(Some(absolute_expiry)) {
1022                 Ok(_) => panic!("Expected error"),
1023                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
1024         }
1025
1026         let mut args = ReconnectArgs::new(alice, bob);
1027         args.send_channel_ready = (true, true);
1028         reconnect_nodes(args);
1029
1030         let offer = alice.node
1031                 .create_offer_builder(Some(absolute_expiry)).unwrap()
1032                 .amount_msats(10_000_000)
1033                 .build().unwrap();
1034
1035         let payment_id = PaymentId([1; 32]);
1036
1037         match david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
1038                 Ok(_) => panic!("Expected error"),
1039                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
1040         }
1041
1042         assert!(nodes[0].node.list_recent_payments().is_empty());
1043
1044         let mut args = ReconnectArgs::new(charlie, david);
1045         args.send_channel_ready = (true, true);
1046         reconnect_nodes(args);
1047
1048         assert!(
1049                 david.node.pay_for_offer(
1050                         &offer, None, None, None, payment_id, Retry::Attempts(0), None
1051                 ).is_ok()
1052         );
1053
1054         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
1055 }
1056
1057 /// Fails creating or sending an invoice for a refund when a blinded path cannot be created because
1058 /// no peers are connected.
1059 #[test]
1060 fn fails_creating_refund_or_sending_invoice_without_connected_peers() {
1061         let mut accept_forward_cfg = test_default_channel_config();
1062         accept_forward_cfg.accept_forwards_to_priv_channels = true;
1063
1064         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
1065         features.set_onion_messages_optional();
1066         features.set_route_blinding_optional();
1067
1068         let chanmon_cfgs = create_chanmon_cfgs(6);
1069         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
1070
1071         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
1072
1073         let node_chanmgrs = create_node_chanmgrs(
1074                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
1075         );
1076         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1077
1078         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1079         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
1080         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
1081         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
1082         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
1083         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
1084         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
1085
1086         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
1087
1088         disconnect_peers(alice, &[bob, charlie, david, &nodes[4], &nodes[5]]);
1089         disconnect_peers(david, &[bob, charlie, &nodes[4], &nodes[5]]);
1090
1091         let absolute_expiry = david.node.duration_since_epoch() + MAX_SHORT_LIVED_RELATIVE_EXPIRY;
1092         let payment_id = PaymentId([1; 32]);
1093         match david.node.create_refund_builder(
1094                 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
1095         ) {
1096                 Ok(_) => panic!("Expected error"),
1097                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
1098         }
1099
1100         let mut args = ReconnectArgs::new(charlie, david);
1101         args.send_channel_ready = (true, true);
1102         reconnect_nodes(args);
1103
1104         let refund = david.node
1105                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
1106                 .unwrap()
1107                 .build().unwrap();
1108
1109         match alice.node.request_refund_payment(&refund) {
1110                 Ok(_) => panic!("Expected error"),
1111                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
1112         }
1113
1114         let mut args = ReconnectArgs::new(alice, bob);
1115         args.send_channel_ready = (true, true);
1116         reconnect_nodes(args);
1117
1118         assert!(alice.node.request_refund_payment(&refund).is_ok());
1119 }
1120
1121 /// Fails creating an invoice request when the offer contains an unsupported chain.
1122 #[test]
1123 fn fails_creating_invoice_request_for_unsupported_chain() {
1124         let chanmon_cfgs = create_chanmon_cfgs(2);
1125         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1126         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1127         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1128
1129         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1130
1131         let alice = &nodes[0];
1132         let bob = &nodes[1];
1133
1134         let offer = alice.node
1135                 .create_offer_builder(None).unwrap()
1136                 .clear_chains()
1137                 .chain(Network::Signet)
1138                 .build().unwrap();
1139
1140         let payment_id = PaymentId([1; 32]);
1141         match bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
1142                 Ok(_) => panic!("Expected error"),
1143                 Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedChain),
1144         }
1145 }
1146
1147 /// Fails requesting a payment when the refund contains an unsupported chain.
1148 #[test]
1149 fn fails_sending_invoice_with_unsupported_chain_for_refund() {
1150         let chanmon_cfgs = create_chanmon_cfgs(2);
1151         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1152         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1153         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1154
1155         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1156
1157         let alice = &nodes[0];
1158         let bob = &nodes[1];
1159
1160         let absolute_expiry = Duration::from_secs(u64::MAX);
1161         let payment_id = PaymentId([1; 32]);
1162         let refund = bob.node
1163                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
1164                 .unwrap()
1165                 .chain(Network::Signet)
1166                 .build().unwrap();
1167
1168         match alice.node.request_refund_payment(&refund) {
1169                 Ok(_) => panic!("Expected error"),
1170                 Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedChain),
1171         }
1172 }
1173
1174 /// Fails creating an invoice request when a blinded reply path cannot be created without exposing
1175 /// the node's id.
1176 #[test]
1177 fn fails_creating_invoice_request_without_blinded_reply_path() {
1178         let chanmon_cfgs = create_chanmon_cfgs(6);
1179         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
1180         let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
1181         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1182
1183         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1184         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
1185         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
1186         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
1187         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
1188
1189         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
1190
1191         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
1192         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
1193
1194         let offer = alice.node
1195                 .create_offer_builder(None).unwrap()
1196                 .amount_msats(10_000_000)
1197                 .build().unwrap();
1198
1199         let payment_id = PaymentId([1; 32]);
1200
1201         match david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
1202                 Ok(_) => panic!("Expected error"),
1203                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
1204         }
1205
1206         assert!(nodes[0].node.list_recent_payments().is_empty());
1207 }
1208
1209 #[test]
1210 fn fails_creating_invoice_request_with_duplicate_payment_id() {
1211         let chanmon_cfgs = create_chanmon_cfgs(6);
1212         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
1213         let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
1214         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1215
1216         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1217         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
1218         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
1219         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
1220         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
1221         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
1222         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
1223
1224         let (alice, _bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
1225
1226         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
1227
1228         let offer = alice.node
1229                 .create_offer_builder(None).unwrap()
1230                 .amount_msats(10_000_000)
1231                 .build().unwrap();
1232
1233         let payment_id = PaymentId([1; 32]);
1234         assert!(
1235                 david.node.pay_for_offer(
1236                         &offer, None, None, None, payment_id, Retry::Attempts(0), None
1237                 ).is_ok()
1238         );
1239         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
1240
1241         match david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
1242                 Ok(_) => panic!("Expected error"),
1243                 Err(e) => assert_eq!(e, Bolt12SemanticError::DuplicatePaymentId),
1244         }
1245
1246         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
1247 }
1248
1249 #[test]
1250 fn fails_creating_refund_with_duplicate_payment_id() {
1251         let chanmon_cfgs = create_chanmon_cfgs(2);
1252         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1253         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1254         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1255
1256         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1257
1258         let absolute_expiry = Duration::from_secs(u64::MAX);
1259         let payment_id = PaymentId([1; 32]);
1260         assert!(
1261                 nodes[0].node.create_refund_builder(
1262                         10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
1263                 ).is_ok()
1264         );
1265         expect_recent_payment!(nodes[0], RecentPaymentDetails::AwaitingInvoice, payment_id);
1266
1267         match nodes[0].node.create_refund_builder(
1268                 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
1269         ) {
1270                 Ok(_) => panic!("Expected error"),
1271                 Err(e) => assert_eq!(e, Bolt12SemanticError::DuplicatePaymentId),
1272         }
1273
1274         expect_recent_payment!(nodes[0], RecentPaymentDetails::AwaitingInvoice, payment_id);
1275 }
1276
1277 #[test]
1278 fn fails_sending_invoice_without_blinded_payment_paths_for_offer() {
1279         let mut accept_forward_cfg = test_default_channel_config();
1280         accept_forward_cfg.accept_forwards_to_priv_channels = true;
1281
1282         // Clearing route_blinding prevents forming any payment paths since the node is unannounced.
1283         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
1284         features.set_onion_messages_optional();
1285         features.clear_route_blinding();
1286
1287         let chanmon_cfgs = create_chanmon_cfgs(6);
1288         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
1289
1290         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
1291
1292         let node_chanmgrs = create_node_chanmgrs(
1293                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
1294         );
1295         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1296
1297         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1298         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
1299         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
1300         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
1301         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
1302         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
1303         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
1304
1305         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
1306         let alice_id = alice.node.get_our_node_id();
1307         let bob_id = bob.node.get_our_node_id();
1308         let charlie_id = charlie.node.get_our_node_id();
1309         let david_id = david.node.get_our_node_id();
1310
1311         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
1312         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
1313
1314         let offer = alice.node
1315                 .create_offer_builder(None).unwrap()
1316                 .amount_msats(10_000_000)
1317                 .build().unwrap();
1318
1319         let payment_id = PaymentId([1; 32]);
1320         david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None)
1321                 .unwrap();
1322
1323         connect_peers(david, bob);
1324
1325         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
1326         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
1327
1328         connect_peers(alice, charlie);
1329
1330         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
1331         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
1332
1333         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1334         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1335
1336         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1337         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1338
1339         let invoice_error = extract_invoice_error(david, &onion_message);
1340         assert_eq!(invoice_error, InvoiceError::from(Bolt12SemanticError::MissingPaths));
1341 }
1342
1343 #[test]
1344 fn fails_sending_invoice_without_blinded_payment_paths_for_refund() {
1345         let mut accept_forward_cfg = test_default_channel_config();
1346         accept_forward_cfg.accept_forwards_to_priv_channels = true;
1347
1348         // Clearing route_blinding prevents forming any payment paths since the node is unannounced.
1349         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
1350         features.set_onion_messages_optional();
1351         features.clear_route_blinding();
1352
1353         let chanmon_cfgs = create_chanmon_cfgs(6);
1354         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
1355
1356         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
1357
1358         let node_chanmgrs = create_node_chanmgrs(
1359                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
1360         );
1361         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1362
1363         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1364         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
1365         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
1366         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
1367         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
1368         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
1369         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
1370
1371         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
1372
1373         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
1374         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
1375
1376         let absolute_expiry = Duration::from_secs(u64::MAX);
1377         let payment_id = PaymentId([1; 32]);
1378         let refund = david.node
1379                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
1380                 .unwrap()
1381                 .build().unwrap();
1382
1383         match alice.node.request_refund_payment(&refund) {
1384                 Ok(_) => panic!("Expected error"),
1385                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
1386         }
1387 }
1388
1389 #[test]
1390 fn fails_paying_invoice_more_than_once() {
1391         let mut accept_forward_cfg = test_default_channel_config();
1392         accept_forward_cfg.accept_forwards_to_priv_channels = true;
1393
1394         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
1395         features.set_onion_messages_optional();
1396         features.set_route_blinding_optional();
1397
1398         let chanmon_cfgs = create_chanmon_cfgs(6);
1399         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
1400
1401         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
1402
1403         let node_chanmgrs = create_node_chanmgrs(
1404                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
1405         );
1406         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1407
1408         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1409         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
1410         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
1411         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
1412         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
1413         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
1414         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
1415
1416         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
1417         let alice_id = alice.node.get_our_node_id();
1418         let bob_id = bob.node.get_our_node_id();
1419         let charlie_id = charlie.node.get_our_node_id();
1420         let david_id = david.node.get_our_node_id();
1421
1422         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
1423         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
1424
1425         let absolute_expiry = Duration::from_secs(u64::MAX);
1426         let payment_id = PaymentId([1; 32]);
1427         let refund = david.node
1428                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
1429                 .unwrap()
1430                 .build().unwrap();
1431         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
1432
1433         // Alice sends the first invoice
1434         alice.node.request_refund_payment(&refund).unwrap();
1435
1436         connect_peers(alice, charlie);
1437
1438         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1439         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1440
1441         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1442         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1443
1444         // David pays the first invoice
1445         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
1446         let invoice1 = extract_invoice(david, &onion_message);
1447
1448         route_bolt12_payment(david, &[charlie, bob, alice], &invoice1);
1449         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
1450
1451         claim_bolt12_payment(david, &[charlie, bob, alice], payment_context);
1452         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
1453
1454         disconnect_peers(alice, &[charlie]);
1455
1456         // Alice sends the second invoice
1457         alice.node.request_refund_payment(&refund).unwrap();
1458
1459         connect_peers(alice, charlie);
1460         connect_peers(david, bob);
1461
1462         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1463         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1464
1465         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1466         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1467
1468         let invoice2 = extract_invoice(david, &onion_message);
1469         assert_eq!(invoice1.payer_metadata(), invoice2.payer_metadata());
1470
1471         // David sends an error instead of paying the second invoice
1472         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
1473         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
1474
1475         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
1476         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
1477
1478         let invoice_error = extract_invoice_error(alice, &onion_message);
1479         assert_eq!(invoice_error, InvoiceError::from_string("DuplicateInvoice".to_string()));
1480 }