_ 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 core::time::Duration;
  44 use crate::blinded_path::BlindedPath;
  45 use crate::events::{Event, MessageSendEventsProvider, PaymentPurpose};
  46 use crate::ln::channelmanager::{PaymentId, RecentPaymentDetails, Retry, self};
  47 use crate::ln::functional_test_utils::*;
  48 use crate::ln::msgs::{ChannelMessageHandler, Init, NodeAnnouncement, OnionMessage, OnionMessageHandler, RoutingMessageHandler, SocketAddress, UnsignedGossipMessage, UnsignedNodeAnnouncement};
  49 use crate::offers::invoice::Bolt12Invoice;
  50 use crate::offers::invoice_error::InvoiceError;
  51 use crate::offers::invoice_request::InvoiceRequest;
  52 use crate::offers::parse::Bolt12SemanticError;
  53 use crate::onion_message::messenger::PeeledOnion;
  54 use crate::onion_message::offers::OffersMessage;
  55 use crate::onion_message::packet::ParsedOnionMessageContents;
  56 use crate::routing::gossip::{NodeAlias, NodeId};
  57 use crate::sign::{NodeSigner, Recipient};
  58
  59 use crate::prelude::*;
  60
  61 macro_rules! expect_recent_payment {
  62         ($node: expr, $payment_state: path, $payment_id: expr) => {
  63                 match $node.node.list_recent_payments().first() {
  64                         Some(&$payment_state { payment_id: actual_payment_id, .. }) => {
  65                                 assert_eq!($payment_id, actual_payment_id);
  66                         },
  67                         Some(_) => panic!("Unexpected recent payment state"),
  68                         None => panic!("No recent payments"),
  69                 }
  70         }
  71 }
  72
  73 fn connect_peers<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>) {
  74         let node_id_a = node_a.node.get_our_node_id();
  75         let node_id_b = node_b.node.get_our_node_id();
  76
  77         let init_a = Init {
  78                 features: node_a.init_features(&node_id_b),
  79                 networks: None,
  80                 remote_network_address: None,
  81         };
  82         let init_b = Init {
  83                 features: node_b.init_features(&node_id_a),
  84                 networks: None,
  85                 remote_network_address: None,
  86         };
  87
  88         node_a.node.peer_connected(&node_id_b, &init_b, true).unwrap();
  89         node_b.node.peer_connected(&node_id_a, &init_a, false).unwrap();
  90         node_a.onion_messenger.peer_connected(&node_id_b, &init_b, true).unwrap();
  91         node_b.onion_messenger.peer_connected(&node_id_a, &init_a, false).unwrap();
  92 }
  93
  94 fn disconnect_peers<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, peers: &[&Node<'a, 'b, 'c>]) {
  95         for node_b in peers {
  96                 node_a.node.peer_disconnected(&node_b.node.get_our_node_id());
  97                 node_b.node.peer_disconnected(&node_a.node.get_our_node_id());
  98                 node_a.onion_messenger.peer_disconnected(&node_b.node.get_our_node_id());
  99                 node_b.onion_messenger.peer_disconnected(&node_a.node.get_our_node_id());
 100         }
 101 }
 102
 103 fn announce_node_address<'a, 'b, 'c>(
 104         node: &Node<'a, 'b, 'c>, peers: &[&Node<'a, 'b, 'c>], address: SocketAddress,
 105 ) {
 106         let features = node.onion_messenger.provided_node_features()
 107                 | node.gossip_sync.provided_node_features();
 108         let rgb = [0u8; 3];
 109         let announcement = UnsignedNodeAnnouncement {
 110                 features,
 111                 timestamp: 1000,
 112                 node_id: NodeId::from_pubkey(&node.keys_manager.get_node_id(Recipient::Node).unwrap()),
 113                 rgb,
 114                 alias: NodeAlias([0u8; 32]),
 115                 addresses: vec![address],
 116                 excess_address_data: Vec::new(),
 117                 excess_data: Vec::new(),
 118         };
 119         let signature = node.keys_manager.sign_gossip_message(
 120                 UnsignedGossipMessage::NodeAnnouncement(&announcement)
 121         ).unwrap();
 122
 123         let msg = NodeAnnouncement {
 124                 signature,
 125                 contents: announcement
 126         };
 127
 128         node.gossip_sync.handle_node_announcement(&msg).unwrap();
 129         for peer in peers {
 130                 peer.gossip_sync.handle_node_announcement(&msg).unwrap();
 131         }
 132 }
 133
 134 fn route_bolt12_payment<'a, 'b, 'c>(
 135         node: &Node<'a, 'b, 'c>, path: &[&Node<'a, 'b, 'c>], invoice: &Bolt12Invoice
 136 ) {
 137         // Monitor added when handling the invoice onion message.
 138         check_added_monitors(node, 1);
 139
 140         let mut events = node.node.get_and_clear_pending_msg_events();
 141         assert_eq!(events.len(), 1);
 142         let ev = remove_first_msg_event_to_node(&path[0].node.get_our_node_id(), &mut events);
 143
 144         // Use a fake payment_hash and bypass checking for the PaymentClaimable event since the
 145         // invoice contains the payment_hash but it was encrypted inside an onion message.
 146         let amount_msats = invoice.amount_msats();
 147         let payment_hash = invoice.payment_hash();
 148         let args = PassAlongPathArgs::new(node, path, amount_msats, payment_hash, ev)
 149                 .without_clearing_recipient_events();
 150         do_pass_along_path(args);
 151 }
 152
 153 fn claim_bolt12_payment<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, path: &[&Node<'a, 'b, 'c>]) {
 154         let recipient = &path[path.len() - 1];
 155         match get_event!(recipient, Event::PaymentClaimable) {
 156                 Event::PaymentClaimable {
 157                         purpose: PaymentPurpose::InvoicePayment {
 158                                 payment_preimage: Some(payment_preimage), ..
 159                         }, ..
 160                 } => claim_payment(node, path, payment_preimage),
 161                 _ => panic!(),
 162         };
 163 }
 164
 165 fn extract_invoice_request<'a, 'b, 'c>(
 166         node: &Node<'a, 'b, 'c>, message: &OnionMessage
 167 ) -> (InvoiceRequest, Option<BlindedPath>) {
 168         match node.onion_messenger.peel_onion_message(message) {
 169                 Ok(PeeledOnion::Receive(message, _, reply_path)) => match message {
 170                         ParsedOnionMessageContents::Offers(offers_message) => match offers_message {
 171                                 OffersMessage::InvoiceRequest(invoice_request) => (invoice_request, reply_path),
 172                                 OffersMessage::Invoice(invoice) => panic!("Unexpected invoice: {:?}", invoice),
 173                                 OffersMessage::InvoiceError(error) => panic!("Unexpected invoice_error: {:?}", error),
 174                         },
 175                         ParsedOnionMessageContents::Custom(message) => panic!("Unexpected custom message: {:?}", message),
 176                 },
 177                 Ok(PeeledOnion::Forward(_, _)) => panic!("Unexpected onion message forward"),
 178                 Err(e) => panic!("Failed to process onion message {:?}", e),
 179         }
 180 }
 181
 182 fn extract_invoice<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, message: &OnionMessage) -> Bolt12Invoice {
 183         match node.onion_messenger.peel_onion_message(message) {
 184                 Ok(PeeledOnion::Receive(message, _, _)) => match message {
 185                         ParsedOnionMessageContents::Offers(offers_message) => match offers_message {
 186                                 OffersMessage::InvoiceRequest(invoice_request) => panic!("Unexpected invoice_request: {:?}", invoice_request),
 187                                 OffersMessage::Invoice(invoice) => invoice,
 188                                 OffersMessage::InvoiceError(error) => panic!("Unexpected invoice_error: {:?}", error),
 189                         },
 190                         ParsedOnionMessageContents::Custom(message) => panic!("Unexpected custom message: {:?}", message),
 191                 },
 192                 Ok(PeeledOnion::Forward(_, _)) => panic!("Unexpected onion message forward"),
 193                 Err(e) => panic!("Failed to process onion message {:?}", e),
 194         }
 195 }
 196
 197 fn extract_invoice_error<'a, 'b, 'c>(
 198         node: &Node<'a, 'b, 'c>, message: &OnionMessage
 199 ) -> InvoiceError {
 200         match node.onion_messenger.peel_onion_message(message) {
 201                 Ok(PeeledOnion::Receive(message, _, _)) => match message {
 202                         ParsedOnionMessageContents::Offers(offers_message) => match offers_message {
 203                                 OffersMessage::InvoiceRequest(invoice_request) => panic!("Unexpected invoice_request: {:?}", invoice_request),
 204                                 OffersMessage::Invoice(invoice) => panic!("Unexpected invoice: {:?}", invoice),
 205                                 OffersMessage::InvoiceError(error) => error,
 206                         },
 207                         ParsedOnionMessageContents::Custom(message) => panic!("Unexpected custom message: {:?}", message),
 208                 },
 209                 Ok(PeeledOnion::Forward(_, _)) => panic!("Unexpected onion message forward"),
 210                 Err(e) => panic!("Failed to process onion message {:?}", e),
 211         }
 212 }
 213
 214 /// Checks that blinded paths without Tor-only nodes are preferred when constructing an offer.
 215 #[test]
 216 fn prefers_non_tor_nodes_in_blinded_paths() {
 217         let mut accept_forward_cfg = test_default_channel_config();
 218         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 219
 220         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 221         features.set_onion_messages_optional();
 222         features.set_route_blinding_optional();
 223
 224         let chanmon_cfgs = create_chanmon_cfgs(6);
 225         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 226
 227         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 228
 229         let node_chanmgrs = create_node_chanmgrs(
 230                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 231         );
 232         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 233
 234         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 235         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 236         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 237         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 238         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 239         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 240         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 241
 242         // Add an extra channel so that more than one of Bob's peers have MIN_PEER_CHANNELS.
 243         create_announced_chan_between_nodes_with_value(&nodes, 4, 5, 10_000_000, 1_000_000_000);
 244
 245         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 246         let bob_id = bob.node.get_our_node_id();
 247         let charlie_id = charlie.node.get_our_node_id();
 248
 249         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 250         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 251
 252         let tor = SocketAddress::OnionV2([255, 254, 253, 252, 251, 250, 249, 248, 247, 246, 38, 7]);
 253         announce_node_address(charlie, &[alice, bob, david, &nodes[4], &nodes[5]], tor.clone());
 254
 255         let offer = bob.node
 256                 .create_offer_builder("coffee".to_string()).unwrap()
 257                 .amount_msats(10_000_000)
 258                 .build().unwrap();
 259         assert_ne!(offer.signing_pubkey(), bob_id);
 260         assert!(!offer.paths().is_empty());
 261         for path in offer.paths() {
 262                 assert_ne!(path.introduction_node_id, bob_id);
 263                 assert_ne!(path.introduction_node_id, charlie_id);
 264         }
 265
 266         // Use a one-hop blinded path when Bob is announced and all his peers are Tor-only.
 267         announce_node_address(&nodes[4], &[alice, bob, charlie, david, &nodes[5]], tor.clone());
 268         announce_node_address(&nodes[5], &[alice, bob, charlie, david, &nodes[4]], tor.clone());
 269
 270         let offer = bob.node
 271                 .create_offer_builder("coffee".to_string()).unwrap()
 272                 .amount_msats(10_000_000)
 273                 .build().unwrap();
 274         assert_ne!(offer.signing_pubkey(), bob_id);
 275         assert!(!offer.paths().is_empty());
 276         for path in offer.paths() {
 277                 assert_eq!(path.introduction_node_id, bob_id);
 278         }
 279 }
 280
 281 /// Checks that blinded paths prefer an introduction node that is the most connected.
 282 #[test]
 283 fn prefers_more_connected_nodes_in_blinded_paths() {
 284         let mut accept_forward_cfg = test_default_channel_config();
 285         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 286
 287         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 288         features.set_onion_messages_optional();
 289         features.set_route_blinding_optional();
 290
 291         let chanmon_cfgs = create_chanmon_cfgs(6);
 292         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 293
 294         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 295
 296         let node_chanmgrs = create_node_chanmgrs(
 297                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 298         );
 299         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 300
 301         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 302         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 303         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 304         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 305         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 306         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 307         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 308
 309         // Add extra channels so that more than one of Bob's peers have MIN_PEER_CHANNELS and one has
 310         // more than the others.
 311         create_announced_chan_between_nodes_with_value(&nodes, 0, 4, 10_000_000, 1_000_000_000);
 312         create_announced_chan_between_nodes_with_value(&nodes, 3, 4, 10_000_000, 1_000_000_000);
 313
 314         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 315         let bob_id = bob.node.get_our_node_id();
 316
 317         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 318         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 319
 320         let offer = bob.node
 321                 .create_offer_builder("coffee".to_string()).unwrap()
 322                 .amount_msats(10_000_000)
 323                 .build().unwrap();
 324         assert_ne!(offer.signing_pubkey(), bob_id);
 325         assert!(!offer.paths().is_empty());
 326         for path in offer.paths() {
 327                 assert_eq!(path.introduction_node_id, nodes[4].node.get_our_node_id());
 328         }
 329 }
 330
 331 /// Checks that an offer can be paid through blinded paths and that ephemeral pubkeys are used
 332 /// rather than exposing a node's pubkey.
 333 #[test]
 334 fn creates_and_pays_for_offer_using_two_hop_blinded_path() {
 335         let mut accept_forward_cfg = test_default_channel_config();
 336         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 337
 338         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 339         features.set_onion_messages_optional();
 340         features.set_route_blinding_optional();
 341
 342         let chanmon_cfgs = create_chanmon_cfgs(6);
 343         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 344
 345         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 346
 347         let node_chanmgrs = create_node_chanmgrs(
 348                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 349         );
 350         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 351
 352         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 353         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 354         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 355         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 356         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 357         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 358         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 359
 360         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 361         let alice_id = alice.node.get_our_node_id();
 362         let bob_id = bob.node.get_our_node_id();
 363         let charlie_id = charlie.node.get_our_node_id();
 364         let david_id = david.node.get_our_node_id();
 365
 366         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 367         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 368
 369         let offer = alice.node
 370                 .create_offer_builder("coffee".to_string()).unwrap()
 371                 .amount_msats(10_000_000)
 372                 .build().unwrap();
 373         assert_ne!(offer.signing_pubkey(), alice_id);
 374         assert!(!offer.paths().is_empty());
 375         for path in offer.paths() {
 376                 assert_eq!(path.introduction_node_id, bob_id);
 377         }
 378
 379         let payment_id = PaymentId([1; 32]);
 380         david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None)
 381                 .unwrap();
 382         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 383
 384         connect_peers(david, bob);
 385
 386         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 387         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
 388
 389         connect_peers(alice, charlie);
 390
 391         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 392         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 393
 394         let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message);
 395         assert_eq!(invoice_request.amount_msats(), None);
 396         assert_ne!(invoice_request.payer_id(), david_id);
 397         assert_eq!(reply_path.unwrap().introduction_node_id, charlie_id);
 398
 399         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
 400         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 401
 402         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
 403         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
 404
 405         let invoice = extract_invoice(david, &onion_message);
 406         assert_eq!(invoice.amount_msats(), 10_000_000);
 407         assert_ne!(invoice.signing_pubkey(), alice_id);
 408         assert!(!invoice.payment_paths().is_empty());
 409         for (_, path) in invoice.payment_paths() {
 410                 assert_eq!(path.introduction_node_id, bob_id);
 411         }
 412
 413         route_bolt12_payment(david, &[charlie, bob, alice], &invoice);
 414         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
 415
 416         claim_bolt12_payment(david, &[charlie, bob, alice]);
 417         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
 418 }
 419
 420 /// Checks that a refund can be paid through blinded paths and that ephemeral pubkeys are used
 421 /// rather than exposing a node's pubkey.
 422 #[test]
 423 fn creates_and_pays_for_refund_using_two_hop_blinded_path() {
 424         let mut accept_forward_cfg = test_default_channel_config();
 425         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 426
 427         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 428         features.set_onion_messages_optional();
 429         features.set_route_blinding_optional();
 430
 431         let chanmon_cfgs = create_chanmon_cfgs(6);
 432         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 433
 434         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 435
 436         let node_chanmgrs = create_node_chanmgrs(
 437                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 438         );
 439         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 440
 441         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 442         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 443         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 444         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 445         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 446         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 447         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 448
 449         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 450         let alice_id = alice.node.get_our_node_id();
 451         let bob_id = bob.node.get_our_node_id();
 452         let charlie_id = charlie.node.get_our_node_id();
 453         let david_id = david.node.get_our_node_id();
 454
 455         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 456         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 457
 458         let absolute_expiry = Duration::from_secs(u64::MAX);
 459         let payment_id = PaymentId([1; 32]);
 460         let refund = david.node
 461                 .create_refund_builder(
 462                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 463                 )
 464                 .unwrap()
 465                 .build().unwrap();
 466         assert_eq!(refund.amount_msats(), 10_000_000);
 467         assert_eq!(refund.absolute_expiry(), Some(absolute_expiry));
 468         assert_ne!(refund.payer_id(), david_id);
 469         assert!(!refund.paths().is_empty());
 470         for path in refund.paths() {
 471                 assert_eq!(path.introduction_node_id, charlie_id);
 472         }
 473         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 474
 475         alice.node.request_refund_payment(&refund).unwrap();
 476
 477         connect_peers(alice, charlie);
 478
 479         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
 480         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 481
 482         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
 483         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
 484
 485         let invoice = extract_invoice(david, &onion_message);
 486         assert_eq!(invoice.amount_msats(), 10_000_000);
 487         assert_ne!(invoice.signing_pubkey(), alice_id);
 488         assert!(!invoice.payment_paths().is_empty());
 489         for (_, path) in invoice.payment_paths() {
 490                 assert_eq!(path.introduction_node_id, bob_id);
 491         }
 492
 493         route_bolt12_payment(david, &[charlie, bob, alice], &invoice);
 494         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
 495
 496         claim_bolt12_payment(david, &[charlie, bob, alice]);
 497         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
 498 }
 499
 500 /// Checks that an offer can be paid through a one-hop blinded path and that ephemeral pubkeys are
 501 /// used rather than exposing a node's pubkey. However, the node's pubkey is still used as the
 502 /// introduction node of the blinded path.
 503 #[test]
 504 fn creates_and_pays_for_offer_using_one_hop_blinded_path() {
 505         let chanmon_cfgs = create_chanmon_cfgs(2);
 506         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 507         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 508         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 509
 510         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 511
 512         let alice = &nodes[0];
 513         let alice_id = alice.node.get_our_node_id();
 514         let bob = &nodes[1];
 515         let bob_id = bob.node.get_our_node_id();
 516
 517         let offer = alice.node
 518                 .create_offer_builder("coffee".to_string()).unwrap()
 519                 .amount_msats(10_000_000)
 520                 .build().unwrap();
 521         assert_ne!(offer.signing_pubkey(), alice_id);
 522         assert!(!offer.paths().is_empty());
 523         for path in offer.paths() {
 524                 assert_eq!(path.introduction_node_id, alice_id);
 525         }
 526
 527         let payment_id = PaymentId([1; 32]);
 528         bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None).unwrap();
 529         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 530
 531         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 532         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 533
 534         let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message);
 535         assert_eq!(invoice_request.amount_msats(), None);
 536         assert_ne!(invoice_request.payer_id(), bob_id);
 537         assert_eq!(reply_path.unwrap().introduction_node_id, bob_id);
 538
 539         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 540         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 541
 542         let invoice = extract_invoice(bob, &onion_message);
 543         assert_eq!(invoice.amount_msats(), 10_000_000);
 544         assert_ne!(invoice.signing_pubkey(), alice_id);
 545         assert!(!invoice.payment_paths().is_empty());
 546         for (_, path) in invoice.payment_paths() {
 547                 assert_eq!(path.introduction_node_id, alice_id);
 548         }
 549
 550         route_bolt12_payment(bob, &[alice], &invoice);
 551         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 552
 553         claim_bolt12_payment(bob, &[alice]);
 554         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 555 }
 556
 557 /// Checks that a refund can be paid through a one-hop blinded path and that ephemeral pubkeys are
 558 /// used rather than exposing a node's pubkey. However, the node's pubkey is still used as the
 559 /// introduction node of the blinded path.
 560 #[test]
 561 fn creates_and_pays_for_refund_using_one_hop_blinded_path() {
 562         let chanmon_cfgs = create_chanmon_cfgs(2);
 563         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 564         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 565         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 566
 567         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 568
 569         let alice = &nodes[0];
 570         let alice_id = alice.node.get_our_node_id();
 571         let bob = &nodes[1];
 572         let bob_id = bob.node.get_our_node_id();
 573
 574         let absolute_expiry = Duration::from_secs(u64::MAX);
 575         let payment_id = PaymentId([1; 32]);
 576         let refund = bob.node
 577                 .create_refund_builder(
 578                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 579                 )
 580                 .unwrap()
 581                 .build().unwrap();
 582         assert_eq!(refund.amount_msats(), 10_000_000);
 583         assert_eq!(refund.absolute_expiry(), Some(absolute_expiry));
 584         assert_ne!(refund.payer_id(), bob_id);
 585         assert!(!refund.paths().is_empty());
 586         for path in refund.paths() {
 587                 assert_eq!(path.introduction_node_id, bob_id);
 588         }
 589         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 590
 591         alice.node.request_refund_payment(&refund).unwrap();
 592
 593         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 594         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 595
 596         let invoice = extract_invoice(bob, &onion_message);
 597         assert_eq!(invoice.amount_msats(), 10_000_000);
 598         assert_ne!(invoice.signing_pubkey(), alice_id);
 599         assert!(!invoice.payment_paths().is_empty());
 600         for (_, path) in invoice.payment_paths() {
 601                 assert_eq!(path.introduction_node_id, alice_id);
 602         }
 603
 604         route_bolt12_payment(bob, &[alice], &invoice);
 605         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 606
 607         claim_bolt12_payment(bob, &[alice]);
 608         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 609 }
 610
 611 /// Checks that an invoice for an offer without any blinded paths can be requested. Note that while
 612 /// the requested is sent directly using the node's pubkey, the response and the payment still use
 613 /// blinded paths as required by the spec.
 614 #[test]
 615 fn pays_for_offer_without_blinded_paths() {
 616         let chanmon_cfgs = create_chanmon_cfgs(2);
 617         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 618         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 619         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 620
 621         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 622
 623         let alice = &nodes[0];
 624         let alice_id = alice.node.get_our_node_id();
 625         let bob = &nodes[1];
 626         let bob_id = bob.node.get_our_node_id();
 627
 628         let offer = alice.node
 629                 .create_offer_builder("coffee".to_string()).unwrap()
 630                 .clear_paths()
 631                 .amount_msats(10_000_000)
 632                 .build().unwrap();
 633         assert_eq!(offer.signing_pubkey(), alice_id);
 634         assert!(offer.paths().is_empty());
 635
 636         let payment_id = PaymentId([1; 32]);
 637         bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None).unwrap();
 638         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 639
 640         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 641         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 642
 643         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 644         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 645
 646         let invoice = extract_invoice(bob, &onion_message);
 647         route_bolt12_payment(bob, &[alice], &invoice);
 648         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 649
 650         claim_bolt12_payment(bob, &[alice]);
 651         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 652 }
 653
 654 /// Checks that a refund without any blinded paths can be paid. Note that while the invoice is sent
 655 /// directly using the node's pubkey, the payment still use blinded paths as required by the spec.
 656 #[test]
 657 fn pays_for_refund_without_blinded_paths() {
 658         let chanmon_cfgs = create_chanmon_cfgs(2);
 659         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 660         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 661         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 662
 663         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 664
 665         let alice = &nodes[0];
 666         let alice_id = alice.node.get_our_node_id();
 667         let bob = &nodes[1];
 668         let bob_id = bob.node.get_our_node_id();
 669
 670         let absolute_expiry = Duration::from_secs(u64::MAX);
 671         let payment_id = PaymentId([1; 32]);
 672         let refund = bob.node
 673                 .create_refund_builder(
 674                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 675                 )
 676                 .unwrap()
 677                 .clear_paths()
 678                 .build().unwrap();
 679         assert_eq!(refund.payer_id(), bob_id);
 680         assert!(refund.paths().is_empty());
 681         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 682
 683         alice.node.request_refund_payment(&refund).unwrap();
 684
 685         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 686         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 687
 688         let invoice = extract_invoice(bob, &onion_message);
 689         route_bolt12_payment(bob, &[alice], &invoice);
 690         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 691
 692         claim_bolt12_payment(bob, &[alice]);
 693         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 694 }
 695
 696 /// Fails creating an offer when a blinded path cannot be created without exposing the node's id.
 697 #[test]
 698 fn fails_creating_offer_without_blinded_paths() {
 699         let chanmon_cfgs = create_chanmon_cfgs(2);
 700         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 701         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 702         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 703
 704         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 705
 706         match nodes[0].node.create_offer_builder("coffee".to_string()) {
 707                 Ok(_) => panic!("Expected error"),
 708                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 709         }
 710 }
 711
 712 /// Fails creating a refund when a blinded path cannot be created without exposing the node's id.
 713 #[test]
 714 fn fails_creating_refund_without_blinded_paths() {
 715         let chanmon_cfgs = create_chanmon_cfgs(2);
 716         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 717         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 718         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 719
 720         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 721
 722         let absolute_expiry = Duration::from_secs(u64::MAX);
 723         let payment_id = PaymentId([1; 32]);
 724
 725         match nodes[0].node.create_refund_builder(
 726                 "refund".to_string(), 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 727         ) {
 728                 Ok(_) => panic!("Expected error"),
 729                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 730         }
 731
 732         assert!(nodes[0].node.list_recent_payments().is_empty());
 733 }
 734
 735 /// Fails creating an invoice request when a blinded reply path cannot be created without exposing
 736 /// the node's id.
 737 #[test]
 738 fn fails_creating_invoice_request_without_blinded_reply_path() {
 739         let chanmon_cfgs = create_chanmon_cfgs(6);
 740         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 741         let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
 742         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 743
 744         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 745         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 746         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 747         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 748         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 749
 750         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 751
 752         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 753         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 754
 755         let offer = alice.node
 756                 .create_offer_builder("coffee".to_string()).unwrap()
 757                 .amount_msats(10_000_000)
 758                 .build().unwrap();
 759
 760         let payment_id = PaymentId([1; 32]);
 761
 762         match david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
 763                 Ok(_) => panic!("Expected error"),
 764                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 765         }
 766
 767         assert!(nodes[0].node.list_recent_payments().is_empty());
 768 }
 769
 770 #[test]
 771 fn fails_creating_invoice_request_with_duplicate_payment_id() {
 772         let chanmon_cfgs = create_chanmon_cfgs(6);
 773         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 774         let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
 775         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 776
 777         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 778         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 779         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 780         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 781         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 782         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 783         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 784
 785         let (alice, _bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 786
 787         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 788
 789         let offer = alice.node
 790                 .create_offer_builder("coffee".to_string()).unwrap()
 791                 .amount_msats(10_000_000)
 792                 .build().unwrap();
 793
 794         let payment_id = PaymentId([1; 32]);
 795         assert!(
 796                 david.node.pay_for_offer(
 797                         &offer, None, None, None, payment_id, Retry::Attempts(0), None
 798                 ).is_ok()
 799         );
 800         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 801
 802         match david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
 803                 Ok(_) => panic!("Expected error"),
 804                 Err(e) => assert_eq!(e, Bolt12SemanticError::DuplicatePaymentId),
 805         }
 806
 807         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 808 }
 809
 810 #[test]
 811 fn fails_creating_refund_with_duplicate_payment_id() {
 812         let chanmon_cfgs = create_chanmon_cfgs(2);
 813         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 814         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 815         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 816
 817         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 818
 819         let absolute_expiry = Duration::from_secs(u64::MAX);
 820         let payment_id = PaymentId([1; 32]);
 821         assert!(
 822                 nodes[0].node.create_refund_builder(
 823                         "refund".to_string(), 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 824                 ).is_ok()
 825         );
 826         expect_recent_payment!(nodes[0], RecentPaymentDetails::AwaitingInvoice, payment_id);
 827
 828         match nodes[0].node.create_refund_builder(
 829                 "refund".to_string(), 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 830         ) {
 831                 Ok(_) => panic!("Expected error"),
 832                 Err(e) => assert_eq!(e, Bolt12SemanticError::DuplicatePaymentId),
 833         }
 834
 835         expect_recent_payment!(nodes[0], RecentPaymentDetails::AwaitingInvoice, payment_id);
 836 }
 837
 838 #[test]
 839 fn fails_sending_invoice_without_blinded_payment_paths_for_offer() {
 840         let mut accept_forward_cfg = test_default_channel_config();
 841         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 842
 843         // Clearing route_blinding prevents forming any payment paths since the node is unannounced.
 844         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 845         features.set_onion_messages_optional();
 846         features.clear_route_blinding();
 847
 848         let chanmon_cfgs = create_chanmon_cfgs(6);
 849         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 850
 851         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 852
 853         let node_chanmgrs = create_node_chanmgrs(
 854                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 855         );
 856         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 857
 858         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 859         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 860         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 861         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 862         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 863         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 864         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 865
 866         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 867         let alice_id = alice.node.get_our_node_id();
 868         let bob_id = bob.node.get_our_node_id();
 869         let charlie_id = charlie.node.get_our_node_id();
 870         let david_id = david.node.get_our_node_id();
 871
 872         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 873         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 874
 875         let offer = alice.node
 876                 .create_offer_builder("coffee".to_string()).unwrap()
 877                 .amount_msats(10_000_000)
 878                 .build().unwrap();
 879
 880         let payment_id = PaymentId([1; 32]);
 881         david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None)
 882                 .unwrap();
 883
 884         connect_peers(david, bob);
 885
 886         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 887         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
 888
 889         connect_peers(alice, charlie);
 890
 891         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 892         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 893
 894         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
 895         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 896
 897         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
 898         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
 899
 900         let invoice_error = extract_invoice_error(david, &onion_message);
 901         assert_eq!(invoice_error, InvoiceError::from(Bolt12SemanticError::MissingPaths));
 902 }
 903
 904 #[test]
 905 fn fails_sending_invoice_without_blinded_payment_paths_for_refund() {
 906         let mut accept_forward_cfg = test_default_channel_config();
 907         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 908
 909         // Clearing route_blinding prevents forming any payment paths since the node is unannounced.
 910         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 911         features.set_onion_messages_optional();
 912         features.clear_route_blinding();
 913
 914         let chanmon_cfgs = create_chanmon_cfgs(6);
 915         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 916
 917         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 918
 919         let node_chanmgrs = create_node_chanmgrs(
 920                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 921         );
 922         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 923
 924         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 925         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 926         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 927         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 928         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 929         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 930         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 931
 932         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 933
 934         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 935         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 936
 937         let absolute_expiry = Duration::from_secs(u64::MAX);
 938         let payment_id = PaymentId([1; 32]);
 939         let refund = david.node
 940                 .create_refund_builder(
 941                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 942                 )
 943                 .unwrap()
 944                 .build().unwrap();
 945
 946         match alice.node.request_refund_payment(&refund) {
 947                 Ok(_) => panic!("Expected error"),
 948                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 949         }
 950 }
 951
 952 #[test]
 953 fn fails_paying_invoice_more_than_once() {
 954         let mut accept_forward_cfg = test_default_channel_config();
 955         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 956
 957         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 958         features.set_onion_messages_optional();
 959         features.set_route_blinding_optional();
 960
 961         let chanmon_cfgs = create_chanmon_cfgs(6);
 962         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 963
 964         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 965
 966         let node_chanmgrs = create_node_chanmgrs(
 967                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 968         );
 969         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 970
 971         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 972         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 973         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 974         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 975         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 976         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 977         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 978
 979         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 980         let alice_id = alice.node.get_our_node_id();
 981         let bob_id = bob.node.get_our_node_id();
 982         let charlie_id = charlie.node.get_our_node_id();
 983         let david_id = david.node.get_our_node_id();
 984
 985         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 986         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 987
 988         let absolute_expiry = Duration::from_secs(u64::MAX);
 989         let payment_id = PaymentId([1; 32]);
 990         let refund = david.node
 991                 .create_refund_builder(
 992                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 993                 )
 994                 .unwrap()
 995                 .build().unwrap();
 996         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 997
 998         // Alice sends the first invoice
 999         alice.node.request_refund_payment(&refund).unwrap();
1000
1001         connect_peers(alice, charlie);
1002
1003         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1004         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1005
1006         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1007         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1008
1009         // David pays the first invoice
1010         let invoice1 = extract_invoice(david, &onion_message);
1011
1012         route_bolt12_payment(david, &[charlie, bob, alice], &invoice1);
1013         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
1014
1015         claim_bolt12_payment(david, &[charlie, bob, alice]);
1016         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
1017
1018         disconnect_peers(alice, &[charlie]);
1019
1020         // Alice sends the second invoice
1021         alice.node.request_refund_payment(&refund).unwrap();
1022
1023         connect_peers(alice, charlie);
1024         connect_peers(david, bob);
1025
1026         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1027         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1028
1029         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1030         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1031
1032         let invoice2 = extract_invoice(david, &onion_message);
1033         assert_eq!(invoice1.payer_metadata(), invoice2.payer_metadata());
1034
1035         // David sends an error instead of paying the second invoice
1036         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
1037         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
1038
1039         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
1040         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
1041
1042         let invoice_error = extract_invoice_error(alice, &onion_message);
1043         assert_eq!(invoice_error, InvoiceError::from_string("DuplicateInvoice".to_string()));
1044 }