_ 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::{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::offers::invoice::Bolt12Invoice;
  53 use crate::offers::invoice_error::InvoiceError;
  54 use crate::offers::invoice_request::{InvoiceRequest, InvoiceRequestFields};
  55 use crate::offers::parse::Bolt12SemanticError;
  56 use crate::onion_message::messenger::PeeledOnion;
  57 use crate::onion_message::offers::OffersMessage;
  58 use crate::onion_message::packet::ParsedOnionMessageContents;
  59 use crate::routing::gossip::{NodeAlias, NodeId};
  60 use crate::sign::{NodeSigner, Recipient};
  61
  62 use crate::prelude::*;
  63
  64 macro_rules! expect_recent_payment {
  65         ($node: expr, $payment_state: path, $payment_id: expr) => {
  66                 match $node.node.list_recent_payments().first() {
  67                         Some(&$payment_state { payment_id: actual_payment_id, .. }) => {
  68                                 assert_eq!($payment_id, actual_payment_id);
  69                         },
  70                         Some(_) => panic!("Unexpected recent payment state"),
  71                         None => panic!("No recent payments"),
  72                 }
  73         }
  74 }
  75
  76 fn connect_peers<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>) {
  77         let node_id_a = node_a.node.get_our_node_id();
  78         let node_id_b = node_b.node.get_our_node_id();
  79
  80         let init_a = Init {
  81                 features: node_a.init_features(&node_id_b),
  82                 networks: None,
  83                 remote_network_address: None,
  84         };
  85         let init_b = Init {
  86                 features: node_b.init_features(&node_id_a),
  87                 networks: None,
  88                 remote_network_address: None,
  89         };
  90
  91         node_a.node.peer_connected(&node_id_b, &init_b, true).unwrap();
  92         node_b.node.peer_connected(&node_id_a, &init_a, false).unwrap();
  93         node_a.onion_messenger.peer_connected(&node_id_b, &init_b, true).unwrap();
  94         node_b.onion_messenger.peer_connected(&node_id_a, &init_a, false).unwrap();
  95 }
  96
  97 fn disconnect_peers<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, peers: &[&Node<'a, 'b, 'c>]) {
  98         for node_b in peers {
  99                 node_a.node.peer_disconnected(&node_b.node.get_our_node_id());
 100                 node_b.node.peer_disconnected(&node_a.node.get_our_node_id());
 101                 node_a.onion_messenger.peer_disconnected(&node_b.node.get_our_node_id());
 102                 node_b.onion_messenger.peer_disconnected(&node_a.node.get_our_node_id());
 103         }
 104 }
 105
 106 fn announce_node_address<'a, 'b, 'c>(
 107         node: &Node<'a, 'b, 'c>, peers: &[&Node<'a, 'b, 'c>], address: SocketAddress,
 108 ) {
 109         let features = node.onion_messenger.provided_node_features()
 110                 | node.gossip_sync.provided_node_features();
 111         let rgb = [0u8; 3];
 112         let announcement = UnsignedNodeAnnouncement {
 113                 features,
 114                 timestamp: 1000,
 115                 node_id: NodeId::from_pubkey(&node.keys_manager.get_node_id(Recipient::Node).unwrap()),
 116                 rgb,
 117                 alias: NodeAlias([0u8; 32]),
 118                 addresses: vec![address],
 119                 excess_address_data: Vec::new(),
 120                 excess_data: Vec::new(),
 121         };
 122         let signature = node.keys_manager.sign_gossip_message(
 123                 UnsignedGossipMessage::NodeAnnouncement(&announcement)
 124         ).unwrap();
 125
 126         let msg = NodeAnnouncement {
 127                 signature,
 128                 contents: announcement
 129         };
 130
 131         node.gossip_sync.handle_node_announcement(&msg).unwrap();
 132         for peer in peers {
 133                 peer.gossip_sync.handle_node_announcement(&msg).unwrap();
 134         }
 135 }
 136
 137 fn resolve_introduction_node<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, path: &BlindedPath) -> PublicKey {
 138         path.public_introduction_node_id(&node.network_graph.read_only())
 139                 .and_then(|node_id| node_id.as_pubkey().ok())
 140                 .unwrap()
 141 }
 142
 143 fn route_bolt12_payment<'a, 'b, 'c>(
 144         node: &Node<'a, 'b, 'c>, path: &[&Node<'a, 'b, 'c>], invoice: &Bolt12Invoice
 145 ) {
 146         // Monitor added when handling the invoice onion message.
 147         check_added_monitors(node, 1);
 148
 149         let mut events = node.node.get_and_clear_pending_msg_events();
 150         assert_eq!(events.len(), 1);
 151         let ev = remove_first_msg_event_to_node(&path[0].node.get_our_node_id(), &mut events);
 152
 153         // Use a fake payment_hash and bypass checking for the PaymentClaimable event since the
 154         // invoice contains the payment_hash but it was encrypted inside an onion message.
 155         let amount_msats = invoice.amount_msats();
 156         let payment_hash = invoice.payment_hash();
 157         let args = PassAlongPathArgs::new(node, path, amount_msats, payment_hash, ev)
 158                 .without_clearing_recipient_events();
 159         do_pass_along_path(args);
 160 }
 161
 162 fn claim_bolt12_payment<'a, 'b, 'c>(
 163         node: &Node<'a, 'b, 'c>, path: &[&Node<'a, 'b, 'c>], expected_payment_context: PaymentContext
 164 ) {
 165         let recipient = &path[path.len() - 1];
 166         let payment_purpose = match get_event!(recipient, Event::PaymentClaimable) {
 167                 Event::PaymentClaimable { purpose, .. } => purpose,
 168                 _ => panic!("No Event::PaymentClaimable"),
 169         };
 170         let payment_preimage = match payment_purpose.preimage() {
 171                 Some(preimage) => preimage,
 172                 None => panic!("No preimage in Event::PaymentClaimable"),
 173         };
 174         match payment_purpose {
 175                 PaymentPurpose::Bolt12OfferPayment { payment_context, .. } => {
 176                         assert_eq!(PaymentContext::Bolt12Offer(payment_context), expected_payment_context);
 177                 },
 178                 PaymentPurpose::Bolt12RefundPayment { payment_context, .. } => {
 179                         assert_eq!(PaymentContext::Bolt12Refund(payment_context), expected_payment_context);
 180                 },
 181                 _ => panic!("Unexpected payment purpose: {:?}", payment_purpose),
 182         }
 183         claim_payment(node, path, payment_preimage);
 184 }
 185
 186 fn extract_invoice_request<'a, 'b, 'c>(
 187         node: &Node<'a, 'b, 'c>, message: &OnionMessage
 188 ) -> (InvoiceRequest, BlindedPath) {
 189         match node.onion_messenger.peel_onion_message(message) {
 190                 Ok(PeeledOnion::Receive(message, _, reply_path)) => match message {
 191                         ParsedOnionMessageContents::Offers(offers_message) => match offers_message {
 192                                 OffersMessage::InvoiceRequest(invoice_request) => (invoice_request, reply_path.unwrap()),
 193                                 OffersMessage::Invoice(invoice) => panic!("Unexpected invoice: {:?}", invoice),
 194                                 OffersMessage::InvoiceError(error) => panic!("Unexpected invoice_error: {:?}", error),
 195                         },
 196                         ParsedOnionMessageContents::Custom(message) => panic!("Unexpected custom message: {:?}", message),
 197                 },
 198                 Ok(PeeledOnion::Forward(_, _)) => panic!("Unexpected onion message forward"),
 199                 Err(e) => panic!("Failed to process onion message {:?}", e),
 200         }
 201 }
 202
 203 fn extract_invoice<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, message: &OnionMessage) -> Bolt12Invoice {
 204         match node.onion_messenger.peel_onion_message(message) {
 205                 Ok(PeeledOnion::Receive(message, _, _)) => match message {
 206                         ParsedOnionMessageContents::Offers(offers_message) => match offers_message {
 207                                 OffersMessage::InvoiceRequest(invoice_request) => panic!("Unexpected invoice_request: {:?}", invoice_request),
 208                                 OffersMessage::Invoice(invoice) => invoice,
 209                                 OffersMessage::InvoiceError(error) => panic!("Unexpected invoice_error: {:?}", error),
 210                         },
 211                         ParsedOnionMessageContents::Custom(message) => panic!("Unexpected custom message: {:?}", message),
 212                 },
 213                 Ok(PeeledOnion::Forward(_, _)) => panic!("Unexpected onion message forward"),
 214                 Err(e) => panic!("Failed to process onion message {:?}", e),
 215         }
 216 }
 217
 218 fn extract_invoice_error<'a, 'b, 'c>(
 219         node: &Node<'a, 'b, 'c>, message: &OnionMessage
 220 ) -> InvoiceError {
 221         match node.onion_messenger.peel_onion_message(message) {
 222                 Ok(PeeledOnion::Receive(message, _, _)) => match message {
 223                         ParsedOnionMessageContents::Offers(offers_message) => match offers_message {
 224                                 OffersMessage::InvoiceRequest(invoice_request) => panic!("Unexpected invoice_request: {:?}", invoice_request),
 225                                 OffersMessage::Invoice(invoice) => panic!("Unexpected invoice: {:?}", invoice),
 226                                 OffersMessage::InvoiceError(error) => error,
 227                         },
 228                         ParsedOnionMessageContents::Custom(message) => panic!("Unexpected custom message: {:?}", message),
 229                 },
 230                 Ok(PeeledOnion::Forward(_, _)) => panic!("Unexpected onion message forward"),
 231                 Err(e) => panic!("Failed to process onion message {:?}", e),
 232         }
 233 }
 234
 235 /// Checks that blinded paths without Tor-only nodes are preferred when constructing an offer.
 236 #[test]
 237 fn prefers_non_tor_nodes_in_blinded_paths() {
 238         let mut accept_forward_cfg = test_default_channel_config();
 239         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 240
 241         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 242         features.set_onion_messages_optional();
 243         features.set_route_blinding_optional();
 244
 245         let chanmon_cfgs = create_chanmon_cfgs(6);
 246         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 247
 248         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 249
 250         let node_chanmgrs = create_node_chanmgrs(
 251                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 252         );
 253         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 254
 255         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 256         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 257         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 258         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 259         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 260         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 261         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 262
 263         // Add an extra channel so that more than one of Bob's peers have MIN_PEER_CHANNELS.
 264         create_announced_chan_between_nodes_with_value(&nodes, 4, 5, 10_000_000, 1_000_000_000);
 265
 266         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 267         let bob_id = bob.node.get_our_node_id();
 268         let charlie_id = charlie.node.get_our_node_id();
 269
 270         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 271         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 272
 273         let tor = SocketAddress::OnionV2([255, 254, 253, 252, 251, 250, 249, 248, 247, 246, 38, 7]);
 274         announce_node_address(charlie, &[alice, bob, david, &nodes[4], &nodes[5]], tor.clone());
 275
 276         let offer = bob.node
 277                 .create_offer_builder().unwrap()
 278                 .amount_msats(10_000_000)
 279                 .build().unwrap();
 280         assert_ne!(offer.signing_pubkey(), Some(bob_id));
 281         assert!(!offer.paths().is_empty());
 282         for path in offer.paths() {
 283                 let introduction_node_id = resolve_introduction_node(david, &path);
 284                 assert_ne!(introduction_node_id, bob_id);
 285                 assert_ne!(introduction_node_id, charlie_id);
 286         }
 287
 288         // Use a one-hop blinded path when Bob is announced and all his peers are Tor-only.
 289         announce_node_address(&nodes[4], &[alice, bob, charlie, david, &nodes[5]], tor.clone());
 290         announce_node_address(&nodes[5], &[alice, bob, charlie, david, &nodes[4]], tor.clone());
 291
 292         let offer = bob.node
 293                 .create_offer_builder().unwrap()
 294                 .amount_msats(10_000_000)
 295                 .build().unwrap();
 296         assert_ne!(offer.signing_pubkey(), Some(bob_id));
 297         assert!(!offer.paths().is_empty());
 298         for path in offer.paths() {
 299                 let introduction_node_id = resolve_introduction_node(david, &path);
 300                 assert_eq!(introduction_node_id, bob_id);
 301         }
 302 }
 303
 304 /// Checks that blinded paths prefer an introduction node that is the most connected.
 305 #[test]
 306 fn prefers_more_connected_nodes_in_blinded_paths() {
 307         let mut accept_forward_cfg = test_default_channel_config();
 308         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 309
 310         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 311         features.set_onion_messages_optional();
 312         features.set_route_blinding_optional();
 313
 314         let chanmon_cfgs = create_chanmon_cfgs(6);
 315         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 316
 317         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 318
 319         let node_chanmgrs = create_node_chanmgrs(
 320                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 321         );
 322         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 323
 324         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 325         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 326         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 327         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 328         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 329         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 330         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 331
 332         // Add extra channels so that more than one of Bob's peers have MIN_PEER_CHANNELS and one has
 333         // more than the others.
 334         create_announced_chan_between_nodes_with_value(&nodes, 0, 4, 10_000_000, 1_000_000_000);
 335         create_announced_chan_between_nodes_with_value(&nodes, 3, 4, 10_000_000, 1_000_000_000);
 336
 337         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 338         let bob_id = bob.node.get_our_node_id();
 339
 340         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 341         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 342
 343         let offer = bob.node
 344                 .create_offer_builder().unwrap()
 345                 .amount_msats(10_000_000)
 346                 .build().unwrap();
 347         assert_ne!(offer.signing_pubkey(), Some(bob_id));
 348         assert!(!offer.paths().is_empty());
 349         for path in offer.paths() {
 350                 let introduction_node_id = resolve_introduction_node(david, &path);
 351                 assert_eq!(introduction_node_id, nodes[4].node.get_our_node_id());
 352         }
 353 }
 354
 355 /// Checks that an offer can be paid through blinded paths and that ephemeral pubkeys are used
 356 /// rather than exposing a node's pubkey.
 357 #[test]
 358 fn creates_and_pays_for_offer_using_two_hop_blinded_path() {
 359         let mut accept_forward_cfg = test_default_channel_config();
 360         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 361
 362         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 363         features.set_onion_messages_optional();
 364         features.set_route_blinding_optional();
 365
 366         let chanmon_cfgs = create_chanmon_cfgs(6);
 367         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 368
 369         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 370
 371         let node_chanmgrs = create_node_chanmgrs(
 372                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 373         );
 374         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 375
 376         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 377         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 378         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 379         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 380         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 381         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 382         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 383
 384         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 385         let alice_id = alice.node.get_our_node_id();
 386         let bob_id = bob.node.get_our_node_id();
 387         let charlie_id = charlie.node.get_our_node_id();
 388         let david_id = david.node.get_our_node_id();
 389
 390         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 391         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 392
 393         let offer = alice.node
 394                 .create_offer_builder()
 395                 .unwrap()
 396                 .amount_msats(10_000_000)
 397                 .build().unwrap();
 398         assert_ne!(offer.signing_pubkey(), Some(alice_id));
 399         assert!(!offer.paths().is_empty());
 400         for path in offer.paths() {
 401                 let introduction_node_id = resolve_introduction_node(david, &path);
 402                 assert_eq!(introduction_node_id, bob_id);
 403                 assert!(matches!(path.introduction_node, IntroductionNode::DirectedShortChannelId(..)));
 404         }
 405
 406         let payment_id = PaymentId([1; 32]);
 407         david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None)
 408                 .unwrap();
 409         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 410
 411         connect_peers(david, bob);
 412
 413         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 414         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
 415
 416         connect_peers(alice, charlie);
 417
 418         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 419         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 420
 421         let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message);
 422         let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext {
 423                 offer_id: offer.id(),
 424                 invoice_request: InvoiceRequestFields {
 425                         payer_id: invoice_request.payer_id(),
 426                         quantity: None,
 427                         payer_note_truncated: None,
 428                 },
 429         });
 430         let introduction_node_id = resolve_introduction_node(alice, &reply_path);
 431         assert_eq!(invoice_request.amount_msats(), None);
 432         assert_ne!(invoice_request.payer_id(), david_id);
 433         assert_eq!(introduction_node_id, charlie_id);
 434         assert!(matches!(reply_path.introduction_node, IntroductionNode::DirectedShortChannelId(..)));
 435
 436         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
 437         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 438
 439         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
 440         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
 441
 442         let invoice = extract_invoice(david, &onion_message);
 443         assert_eq!(invoice.amount_msats(), 10_000_000);
 444         assert_ne!(invoice.signing_pubkey(), alice_id);
 445         assert!(!invoice.payment_paths().is_empty());
 446         for (_, path) in invoice.payment_paths() {
 447                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 448         }
 449
 450         route_bolt12_payment(david, &[charlie, bob, alice], &invoice);
 451         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
 452
 453         claim_bolt12_payment(david, &[charlie, bob, alice], payment_context);
 454         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
 455 }
 456
 457 /// Checks that a refund can be paid through blinded paths and that ephemeral pubkeys are used
 458 /// rather than exposing a node's pubkey.
 459 #[test]
 460 fn creates_and_pays_for_refund_using_two_hop_blinded_path() {
 461         let mut accept_forward_cfg = test_default_channel_config();
 462         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 463
 464         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 465         features.set_onion_messages_optional();
 466         features.set_route_blinding_optional();
 467
 468         let chanmon_cfgs = create_chanmon_cfgs(6);
 469         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 470
 471         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 472
 473         let node_chanmgrs = create_node_chanmgrs(
 474                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 475         );
 476         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 477
 478         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 479         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 480         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 481         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 482         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 483         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 484         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 485
 486         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 487         let alice_id = alice.node.get_our_node_id();
 488         let bob_id = bob.node.get_our_node_id();
 489         let charlie_id = charlie.node.get_our_node_id();
 490         let david_id = david.node.get_our_node_id();
 491
 492         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 493         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 494
 495         let absolute_expiry = Duration::from_secs(u64::MAX);
 496         let payment_id = PaymentId([1; 32]);
 497         let refund = david.node
 498                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
 499                 .unwrap()
 500                 .build().unwrap();
 501         assert_eq!(refund.amount_msats(), 10_000_000);
 502         assert_eq!(refund.absolute_expiry(), Some(absolute_expiry));
 503         assert_ne!(refund.payer_id(), david_id);
 504         assert!(!refund.paths().is_empty());
 505         for path in refund.paths() {
 506                 let introduction_node_id = resolve_introduction_node(alice, &path);
 507                 assert_eq!(introduction_node_id, charlie_id);
 508                 assert!(matches!(path.introduction_node, IntroductionNode::DirectedShortChannelId(..)));
 509         }
 510         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 511
 512         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
 513         let expected_invoice = alice.node.request_refund_payment(&refund).unwrap();
 514
 515         connect_peers(alice, charlie);
 516
 517         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
 518         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 519
 520         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
 521         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
 522
 523         let invoice = extract_invoice(david, &onion_message);
 524         assert_eq!(invoice, expected_invoice);
 525
 526         assert_eq!(invoice.amount_msats(), 10_000_000);
 527         assert_ne!(invoice.signing_pubkey(), alice_id);
 528         assert!(!invoice.payment_paths().is_empty());
 529         for (_, path) in invoice.payment_paths() {
 530                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 531         }
 532
 533         route_bolt12_payment(david, &[charlie, bob, alice], &invoice);
 534         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
 535
 536         claim_bolt12_payment(david, &[charlie, bob, alice], payment_context);
 537         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
 538 }
 539
 540 /// Checks that an offer can be paid through a one-hop blinded path and that ephemeral pubkeys are
 541 /// used rather than exposing a node's pubkey. However, the node's pubkey is still used as the
 542 /// introduction node of the blinded path.
 543 #[test]
 544 fn creates_and_pays_for_offer_using_one_hop_blinded_path() {
 545         let chanmon_cfgs = create_chanmon_cfgs(2);
 546         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 547         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 548         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 549
 550         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 551
 552         let alice = &nodes[0];
 553         let alice_id = alice.node.get_our_node_id();
 554         let bob = &nodes[1];
 555         let bob_id = bob.node.get_our_node_id();
 556
 557         let offer = alice.node
 558                 .create_offer_builder().unwrap()
 559                 .amount_msats(10_000_000)
 560                 .build().unwrap();
 561         assert_ne!(offer.signing_pubkey(), Some(alice_id));
 562         assert!(!offer.paths().is_empty());
 563         for path in offer.paths() {
 564                 let introduction_node_id = resolve_introduction_node(bob, &path);
 565                 assert_eq!(introduction_node_id, alice_id);
 566                 assert!(matches!(path.introduction_node, IntroductionNode::DirectedShortChannelId(..)));
 567         }
 568
 569         let payment_id = PaymentId([1; 32]);
 570         bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None).unwrap();
 571         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 572
 573         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 574         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 575
 576         let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message);
 577         let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext {
 578                 offer_id: offer.id(),
 579                 invoice_request: InvoiceRequestFields {
 580                         payer_id: invoice_request.payer_id(),
 581                         quantity: None,
 582                         payer_note_truncated: None,
 583                 },
 584         });
 585         let introduction_node_id = resolve_introduction_node(alice, &reply_path);
 586         assert_eq!(invoice_request.amount_msats(), None);
 587         assert_ne!(invoice_request.payer_id(), bob_id);
 588         assert_eq!(introduction_node_id, bob_id);
 589         assert!(matches!(reply_path.introduction_node, IntroductionNode::DirectedShortChannelId(..)));
 590
 591         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 592         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 593
 594         let invoice = extract_invoice(bob, &onion_message);
 595         assert_eq!(invoice.amount_msats(), 10_000_000);
 596         assert_ne!(invoice.signing_pubkey(), alice_id);
 597         assert!(!invoice.payment_paths().is_empty());
 598         for (_, path) in invoice.payment_paths() {
 599                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
 600         }
 601
 602         route_bolt12_payment(bob, &[alice], &invoice);
 603         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 604
 605         claim_bolt12_payment(bob, &[alice], payment_context);
 606         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 607 }
 608
 609 /// Checks that a refund can be paid through a one-hop blinded path and that ephemeral pubkeys are
 610 /// used rather than exposing a node's pubkey. However, the node's pubkey is still used as the
 611 /// introduction node of the blinded path.
 612 #[test]
 613 fn creates_and_pays_for_refund_using_one_hop_blinded_path() {
 614         let chanmon_cfgs = create_chanmon_cfgs(2);
 615         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 616         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 617         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 618
 619         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 620
 621         let alice = &nodes[0];
 622         let alice_id = alice.node.get_our_node_id();
 623         let bob = &nodes[1];
 624         let bob_id = bob.node.get_our_node_id();
 625
 626         let absolute_expiry = Duration::from_secs(u64::MAX);
 627         let payment_id = PaymentId([1; 32]);
 628         let refund = bob.node
 629                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
 630                 .unwrap()
 631                 .build().unwrap();
 632         assert_eq!(refund.amount_msats(), 10_000_000);
 633         assert_eq!(refund.absolute_expiry(), Some(absolute_expiry));
 634         assert_ne!(refund.payer_id(), bob_id);
 635         assert!(!refund.paths().is_empty());
 636         for path in refund.paths() {
 637                 let introduction_node_id = resolve_introduction_node(alice, &path);
 638                 assert_eq!(introduction_node_id, bob_id);
 639                 assert!(matches!(path.introduction_node, IntroductionNode::DirectedShortChannelId(..)));
 640         }
 641         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 642
 643         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
 644         let expected_invoice = alice.node.request_refund_payment(&refund).unwrap();
 645
 646         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 647         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 648
 649         let invoice = extract_invoice(bob, &onion_message);
 650         assert_eq!(invoice, expected_invoice);
 651
 652         assert_eq!(invoice.amount_msats(), 10_000_000);
 653         assert_ne!(invoice.signing_pubkey(), alice_id);
 654         assert!(!invoice.payment_paths().is_empty());
 655         for (_, path) in invoice.payment_paths() {
 656                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
 657         }
 658
 659         route_bolt12_payment(bob, &[alice], &invoice);
 660         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 661
 662         claim_bolt12_payment(bob, &[alice], payment_context);
 663         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 664 }
 665
 666 /// Checks that an invoice for an offer without any blinded paths can be requested. Note that while
 667 /// the requested is sent directly using the node's pubkey, the response and the payment still use
 668 /// blinded paths as required by the spec.
 669 #[test]
 670 fn pays_for_offer_without_blinded_paths() {
 671         let chanmon_cfgs = create_chanmon_cfgs(2);
 672         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 673         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 674         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 675
 676         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 677
 678         let alice = &nodes[0];
 679         let alice_id = alice.node.get_our_node_id();
 680         let bob = &nodes[1];
 681         let bob_id = bob.node.get_our_node_id();
 682
 683         let offer = alice.node
 684                 .create_offer_builder().unwrap()
 685                 .clear_paths()
 686                 .amount_msats(10_000_000)
 687                 .build().unwrap();
 688         assert_eq!(offer.signing_pubkey(), Some(alice_id));
 689         assert!(offer.paths().is_empty());
 690
 691         let payment_id = PaymentId([1; 32]);
 692         bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None).unwrap();
 693         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 694
 695         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 696         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 697
 698         let (invoice_request, _) = extract_invoice_request(alice, &onion_message);
 699         let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext {
 700                 offer_id: offer.id(),
 701                 invoice_request: InvoiceRequestFields {
 702                         payer_id: invoice_request.payer_id(),
 703                         quantity: None,
 704                         payer_note_truncated: None,
 705                 },
 706         });
 707
 708         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 709         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 710
 711         let invoice = extract_invoice(bob, &onion_message);
 712         route_bolt12_payment(bob, &[alice], &invoice);
 713         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 714
 715         claim_bolt12_payment(bob, &[alice], payment_context);
 716         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 717 }
 718
 719 /// Checks that a refund without any blinded paths can be paid. Note that while the invoice is sent
 720 /// directly using the node's pubkey, the payment still use blinded paths as required by the spec.
 721 #[test]
 722 fn pays_for_refund_without_blinded_paths() {
 723         let chanmon_cfgs = create_chanmon_cfgs(2);
 724         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 725         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 726         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 727
 728         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 729
 730         let alice = &nodes[0];
 731         let alice_id = alice.node.get_our_node_id();
 732         let bob = &nodes[1];
 733         let bob_id = bob.node.get_our_node_id();
 734
 735         let absolute_expiry = Duration::from_secs(u64::MAX);
 736         let payment_id = PaymentId([1; 32]);
 737         let refund = bob.node
 738                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
 739                 .unwrap()
 740                 .clear_paths()
 741                 .build().unwrap();
 742         assert_eq!(refund.payer_id(), bob_id);
 743         assert!(refund.paths().is_empty());
 744         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 745
 746         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
 747         let expected_invoice = alice.node.request_refund_payment(&refund).unwrap();
 748
 749         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 750         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 751
 752         let invoice = extract_invoice(bob, &onion_message);
 753         assert_eq!(invoice, expected_invoice);
 754
 755         route_bolt12_payment(bob, &[alice], &invoice);
 756         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 757
 758         claim_bolt12_payment(bob, &[alice], payment_context);
 759         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 760 }
 761
 762 /// Fails creating an offer when a blinded path cannot be created without exposing the node's id.
 763 #[test]
 764 fn fails_creating_offer_without_blinded_paths() {
 765         let chanmon_cfgs = create_chanmon_cfgs(2);
 766         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 767         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 768         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 769
 770         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 771
 772         match nodes[0].node.create_offer_builder() {
 773                 Ok(_) => panic!("Expected error"),
 774                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 775         }
 776 }
 777
 778 /// Fails creating a refund when a blinded path cannot be created without exposing the node's id.
 779 #[test]
 780 fn fails_creating_refund_without_blinded_paths() {
 781         let chanmon_cfgs = create_chanmon_cfgs(2);
 782         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 783         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 784         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 785
 786         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 787
 788         let absolute_expiry = Duration::from_secs(u64::MAX);
 789         let payment_id = PaymentId([1; 32]);
 790
 791         match nodes[0].node.create_refund_builder(
 792                 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 793         ) {
 794                 Ok(_) => panic!("Expected error"),
 795                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 796         }
 797
 798         assert!(nodes[0].node.list_recent_payments().is_empty());
 799 }
 800
 801 /// Fails creating an invoice request when the offer contains an unsupported chain.
 802 #[test]
 803 fn fails_creating_invoice_request_for_unsupported_chain() {
 804         let chanmon_cfgs = create_chanmon_cfgs(2);
 805         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 806         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 807         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 808
 809         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 810
 811         let alice = &nodes[0];
 812         let bob = &nodes[1];
 813
 814         let offer = alice.node
 815                 .create_offer_builder().unwrap()
 816                 .clear_chains()
 817                 .chain(Network::Signet)
 818                 .build().unwrap();
 819
 820         let payment_id = PaymentId([1; 32]);
 821         match bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
 822                 Ok(_) => panic!("Expected error"),
 823                 Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedChain),
 824         }
 825 }
 826
 827 /// Fails requesting a payment when the refund contains an unsupported chain.
 828 #[test]
 829 fn fails_sending_invoice_with_unsupported_chain_for_refund() {
 830         let chanmon_cfgs = create_chanmon_cfgs(2);
 831         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 832         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 833         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 834
 835         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 836
 837         let alice = &nodes[0];
 838         let bob = &nodes[1];
 839
 840         let absolute_expiry = Duration::from_secs(u64::MAX);
 841         let payment_id = PaymentId([1; 32]);
 842         let refund = bob.node
 843                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
 844                 .unwrap()
 845                 .chain(Network::Signet)
 846                 .build().unwrap();
 847
 848         match alice.node.request_refund_payment(&refund) {
 849                 Ok(_) => panic!("Expected error"),
 850                 Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedChain),
 851         }
 852 }
 853
 854 /// Fails creating an invoice request when a blinded reply path cannot be created without exposing
 855 /// the node's id.
 856 #[test]
 857 fn fails_creating_invoice_request_without_blinded_reply_path() {
 858         let chanmon_cfgs = create_chanmon_cfgs(6);
 859         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 860         let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
 861         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 862
 863         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 864         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 865         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 866         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 867         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 868
 869         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 870
 871         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 872         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 873
 874         let offer = alice.node
 875                 .create_offer_builder().unwrap()
 876                 .amount_msats(10_000_000)
 877                 .build().unwrap();
 878
 879         let payment_id = PaymentId([1; 32]);
 880
 881         match david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
 882                 Ok(_) => panic!("Expected error"),
 883                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 884         }
 885
 886         assert!(nodes[0].node.list_recent_payments().is_empty());
 887 }
 888
 889 #[test]
 890 fn fails_creating_invoice_request_with_duplicate_payment_id() {
 891         let chanmon_cfgs = create_chanmon_cfgs(6);
 892         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 893         let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
 894         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 895
 896         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 897         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 898         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 899         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 900         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 901         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 902         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 903
 904         let (alice, _bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 905
 906         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 907
 908         let offer = alice.node
 909                 .create_offer_builder().unwrap()
 910                 .amount_msats(10_000_000)
 911                 .build().unwrap();
 912
 913         let payment_id = PaymentId([1; 32]);
 914         assert!(
 915                 david.node.pay_for_offer(
 916                         &offer, None, None, None, payment_id, Retry::Attempts(0), None
 917                 ).is_ok()
 918         );
 919         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 920
 921         match david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
 922                 Ok(_) => panic!("Expected error"),
 923                 Err(e) => assert_eq!(e, Bolt12SemanticError::DuplicatePaymentId),
 924         }
 925
 926         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 927 }
 928
 929 #[test]
 930 fn fails_creating_refund_with_duplicate_payment_id() {
 931         let chanmon_cfgs = create_chanmon_cfgs(2);
 932         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 933         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 934         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 935
 936         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 937
 938         let absolute_expiry = Duration::from_secs(u64::MAX);
 939         let payment_id = PaymentId([1; 32]);
 940         assert!(
 941                 nodes[0].node.create_refund_builder(
 942                         10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 943                 ).is_ok()
 944         );
 945         expect_recent_payment!(nodes[0], RecentPaymentDetails::AwaitingInvoice, payment_id);
 946
 947         match nodes[0].node.create_refund_builder(
 948                 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 949         ) {
 950                 Ok(_) => panic!("Expected error"),
 951                 Err(e) => assert_eq!(e, Bolt12SemanticError::DuplicatePaymentId),
 952         }
 953
 954         expect_recent_payment!(nodes[0], RecentPaymentDetails::AwaitingInvoice, payment_id);
 955 }
 956
 957 #[test]
 958 fn fails_sending_invoice_without_blinded_payment_paths_for_offer() {
 959         let mut accept_forward_cfg = test_default_channel_config();
 960         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 961
 962         // Clearing route_blinding prevents forming any payment paths since the node is unannounced.
 963         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 964         features.set_onion_messages_optional();
 965         features.clear_route_blinding();
 966
 967         let chanmon_cfgs = create_chanmon_cfgs(6);
 968         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 969
 970         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 971
 972         let node_chanmgrs = create_node_chanmgrs(
 973                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 974         );
 975         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 976
 977         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 978         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 979         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 980         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 981         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 982         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 983         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 984
 985         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 986         let alice_id = alice.node.get_our_node_id();
 987         let bob_id = bob.node.get_our_node_id();
 988         let charlie_id = charlie.node.get_our_node_id();
 989         let david_id = david.node.get_our_node_id();
 990
 991         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 992         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 993
 994         let offer = alice.node
 995                 .create_offer_builder().unwrap()
 996                 .amount_msats(10_000_000)
 997                 .build().unwrap();
 998
 999         let payment_id = PaymentId([1; 32]);
1000         david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None)
1001                 .unwrap();
1002
1003         connect_peers(david, bob);
1004
1005         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
1006         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
1007
1008         connect_peers(alice, charlie);
1009
1010         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
1011         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
1012
1013         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1014         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1015
1016         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1017         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1018
1019         let invoice_error = extract_invoice_error(david, &onion_message);
1020         assert_eq!(invoice_error, InvoiceError::from(Bolt12SemanticError::MissingPaths));
1021 }
1022
1023 #[test]
1024 fn fails_sending_invoice_without_blinded_payment_paths_for_refund() {
1025         let mut accept_forward_cfg = test_default_channel_config();
1026         accept_forward_cfg.accept_forwards_to_priv_channels = true;
1027
1028         // Clearing route_blinding prevents forming any payment paths since the node is unannounced.
1029         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
1030         features.set_onion_messages_optional();
1031         features.clear_route_blinding();
1032
1033         let chanmon_cfgs = create_chanmon_cfgs(6);
1034         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
1035
1036         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
1037
1038         let node_chanmgrs = create_node_chanmgrs(
1039                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
1040         );
1041         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1042
1043         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1044         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
1045         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
1046         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
1047         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
1048         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
1049         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
1050
1051         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
1052
1053         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
1054         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
1055
1056         let absolute_expiry = Duration::from_secs(u64::MAX);
1057         let payment_id = PaymentId([1; 32]);
1058         let refund = david.node
1059                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
1060                 .unwrap()
1061                 .build().unwrap();
1062
1063         match alice.node.request_refund_payment(&refund) {
1064                 Ok(_) => panic!("Expected error"),
1065                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
1066         }
1067 }
1068
1069 #[test]
1070 fn fails_paying_invoice_more_than_once() {
1071         let mut accept_forward_cfg = test_default_channel_config();
1072         accept_forward_cfg.accept_forwards_to_priv_channels = true;
1073
1074         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
1075         features.set_onion_messages_optional();
1076         features.set_route_blinding_optional();
1077
1078         let chanmon_cfgs = create_chanmon_cfgs(6);
1079         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
1080
1081         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
1082
1083         let node_chanmgrs = create_node_chanmgrs(
1084                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
1085         );
1086         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1087
1088         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1089         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
1090         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
1091         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
1092         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
1093         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
1094         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
1095
1096         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
1097         let alice_id = alice.node.get_our_node_id();
1098         let bob_id = bob.node.get_our_node_id();
1099         let charlie_id = charlie.node.get_our_node_id();
1100         let david_id = david.node.get_our_node_id();
1101
1102         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
1103         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
1104
1105         let absolute_expiry = Duration::from_secs(u64::MAX);
1106         let payment_id = PaymentId([1; 32]);
1107         let refund = david.node
1108                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
1109                 .unwrap()
1110                 .build().unwrap();
1111         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
1112
1113         // Alice sends the first invoice
1114         alice.node.request_refund_payment(&refund).unwrap();
1115
1116         connect_peers(alice, charlie);
1117
1118         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1119         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1120
1121         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1122         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1123
1124         // David pays the first invoice
1125         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
1126         let invoice1 = extract_invoice(david, &onion_message);
1127
1128         route_bolt12_payment(david, &[charlie, bob, alice], &invoice1);
1129         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
1130
1131         claim_bolt12_payment(david, &[charlie, bob, alice], payment_context);
1132         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
1133
1134         disconnect_peers(alice, &[charlie]);
1135
1136         // Alice sends the second invoice
1137         alice.node.request_refund_payment(&refund).unwrap();
1138
1139         connect_peers(alice, charlie);
1140         connect_peers(david, bob);
1141
1142         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1143         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1144
1145         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1146         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1147
1148         let invoice2 = extract_invoice(david, &onion_message);
1149         assert_eq!(invoice1.payer_metadata(), invoice2.payer_metadata());
1150
1151         // David sends an error instead of paying the second invoice
1152         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
1153         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
1154
1155         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
1156         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
1157
1158         let invoice_error = extract_invoice_error(alice, &onion_message);
1159         assert_eq!(invoice_error, InvoiceError::from_string("DuplicateInvoice".to_string()));
1160 }