_ 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         assert_eq!(invoice_request.amount_msats(), None);
 431         assert_ne!(invoice_request.payer_id(), david_id);
 432         assert_eq!(reply_path.introduction_node, IntroductionNode::NodeId(charlie_id));
 433
 434         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
 435         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 436
 437         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
 438         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
 439
 440         let invoice = extract_invoice(david, &onion_message);
 441         assert_eq!(invoice.amount_msats(), 10_000_000);
 442         assert_ne!(invoice.signing_pubkey(), alice_id);
 443         assert!(!invoice.payment_paths().is_empty());
 444         for (_, path) in invoice.payment_paths() {
 445                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 446         }
 447
 448         route_bolt12_payment(david, &[charlie, bob, alice], &invoice);
 449         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
 450
 451         claim_bolt12_payment(david, &[charlie, bob, alice], payment_context);
 452         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
 453 }
 454
 455 /// Checks that a refund can be paid through blinded paths and that ephemeral pubkeys are used
 456 /// rather than exposing a node's pubkey.
 457 #[test]
 458 fn creates_and_pays_for_refund_using_two_hop_blinded_path() {
 459         let mut accept_forward_cfg = test_default_channel_config();
 460         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 461
 462         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 463         features.set_onion_messages_optional();
 464         features.set_route_blinding_optional();
 465
 466         let chanmon_cfgs = create_chanmon_cfgs(6);
 467         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 468
 469         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 470
 471         let node_chanmgrs = create_node_chanmgrs(
 472                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 473         );
 474         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 475
 476         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 477         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 478         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 479         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 480         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 481         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 482         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 483
 484         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 485         let alice_id = alice.node.get_our_node_id();
 486         let bob_id = bob.node.get_our_node_id();
 487         let charlie_id = charlie.node.get_our_node_id();
 488         let david_id = david.node.get_our_node_id();
 489
 490         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 491         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 492
 493         let absolute_expiry = Duration::from_secs(u64::MAX);
 494         let payment_id = PaymentId([1; 32]);
 495         let refund = david.node
 496                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
 497                 .unwrap()
 498                 .build().unwrap();
 499         assert_eq!(refund.amount_msats(), 10_000_000);
 500         assert_eq!(refund.absolute_expiry(), Some(absolute_expiry));
 501         assert_ne!(refund.payer_id(), david_id);
 502         assert!(!refund.paths().is_empty());
 503         for path in refund.paths() {
 504                 let introduction_node_id = resolve_introduction_node(alice, &path);
 505                 assert_eq!(introduction_node_id, charlie_id);
 506                 assert!(matches!(path.introduction_node, IntroductionNode::DirectedShortChannelId(..)));
 507         }
 508         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 509
 510         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
 511         let expected_invoice = alice.node.request_refund_payment(&refund).unwrap();
 512
 513         connect_peers(alice, charlie);
 514
 515         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
 516         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 517
 518         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
 519         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
 520
 521         let invoice = extract_invoice(david, &onion_message);
 522         assert_eq!(invoice, expected_invoice);
 523
 524         assert_eq!(invoice.amount_msats(), 10_000_000);
 525         assert_ne!(invoice.signing_pubkey(), alice_id);
 526         assert!(!invoice.payment_paths().is_empty());
 527         for (_, path) in invoice.payment_paths() {
 528                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 529         }
 530
 531         route_bolt12_payment(david, &[charlie, bob, alice], &invoice);
 532         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
 533
 534         claim_bolt12_payment(david, &[charlie, bob, alice], payment_context);
 535         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
 536 }
 537
 538 /// Checks that an offer can be paid through a one-hop blinded path and that ephemeral pubkeys are
 539 /// used rather than exposing a node's pubkey. However, the node's pubkey is still used as the
 540 /// introduction node of the blinded path.
 541 #[test]
 542 fn creates_and_pays_for_offer_using_one_hop_blinded_path() {
 543         let chanmon_cfgs = create_chanmon_cfgs(2);
 544         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 545         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 546         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 547
 548         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 549
 550         let alice = &nodes[0];
 551         let alice_id = alice.node.get_our_node_id();
 552         let bob = &nodes[1];
 553         let bob_id = bob.node.get_our_node_id();
 554
 555         let offer = alice.node
 556                 .create_offer_builder().unwrap()
 557                 .amount_msats(10_000_000)
 558                 .build().unwrap();
 559         assert_ne!(offer.signing_pubkey(), Some(alice_id));
 560         assert!(!offer.paths().is_empty());
 561         for path in offer.paths() {
 562                 let introduction_node_id = resolve_introduction_node(bob, &path);
 563                 assert_eq!(introduction_node_id, alice_id);
 564                 assert!(matches!(path.introduction_node, IntroductionNode::DirectedShortChannelId(..)));
 565         }
 566
 567         let payment_id = PaymentId([1; 32]);
 568         bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None).unwrap();
 569         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 570
 571         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 572         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 573
 574         let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message);
 575         let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext {
 576                 offer_id: offer.id(),
 577                 invoice_request: InvoiceRequestFields {
 578                         payer_id: invoice_request.payer_id(),
 579                         quantity: None,
 580                         payer_note_truncated: None,
 581                 },
 582         });
 583         assert_eq!(invoice_request.amount_msats(), None);
 584         assert_ne!(invoice_request.payer_id(), bob_id);
 585         assert_eq!(reply_path.introduction_node, IntroductionNode::NodeId(bob_id));
 586
 587         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 588         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 589
 590         let invoice = extract_invoice(bob, &onion_message);
 591         assert_eq!(invoice.amount_msats(), 10_000_000);
 592         assert_ne!(invoice.signing_pubkey(), alice_id);
 593         assert!(!invoice.payment_paths().is_empty());
 594         for (_, path) in invoice.payment_paths() {
 595                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
 596         }
 597
 598         route_bolt12_payment(bob, &[alice], &invoice);
 599         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 600
 601         claim_bolt12_payment(bob, &[alice], payment_context);
 602         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 603 }
 604
 605 /// Checks that a refund can be paid through a one-hop blinded path and that ephemeral pubkeys are
 606 /// used rather than exposing a node's pubkey. However, the node's pubkey is still used as the
 607 /// introduction node of the blinded path.
 608 #[test]
 609 fn creates_and_pays_for_refund_using_one_hop_blinded_path() {
 610         let chanmon_cfgs = create_chanmon_cfgs(2);
 611         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 612         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 613         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 614
 615         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 616
 617         let alice = &nodes[0];
 618         let alice_id = alice.node.get_our_node_id();
 619         let bob = &nodes[1];
 620         let bob_id = bob.node.get_our_node_id();
 621
 622         let absolute_expiry = Duration::from_secs(u64::MAX);
 623         let payment_id = PaymentId([1; 32]);
 624         let refund = bob.node
 625                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
 626                 .unwrap()
 627                 .build().unwrap();
 628         assert_eq!(refund.amount_msats(), 10_000_000);
 629         assert_eq!(refund.absolute_expiry(), Some(absolute_expiry));
 630         assert_ne!(refund.payer_id(), bob_id);
 631         assert!(!refund.paths().is_empty());
 632         for path in refund.paths() {
 633                 let introduction_node_id = resolve_introduction_node(alice, &path);
 634                 assert_eq!(introduction_node_id, bob_id);
 635                 assert!(matches!(path.introduction_node, IntroductionNode::DirectedShortChannelId(..)));
 636         }
 637         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 638
 639         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
 640         let expected_invoice = alice.node.request_refund_payment(&refund).unwrap();
 641
 642         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 643         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 644
 645         let invoice = extract_invoice(bob, &onion_message);
 646         assert_eq!(invoice, expected_invoice);
 647
 648         assert_eq!(invoice.amount_msats(), 10_000_000);
 649         assert_ne!(invoice.signing_pubkey(), alice_id);
 650         assert!(!invoice.payment_paths().is_empty());
 651         for (_, path) in invoice.payment_paths() {
 652                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
 653         }
 654
 655         route_bolt12_payment(bob, &[alice], &invoice);
 656         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 657
 658         claim_bolt12_payment(bob, &[alice], payment_context);
 659         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 660 }
 661
 662 /// Checks that an invoice for an offer without any blinded paths can be requested. Note that while
 663 /// the requested is sent directly using the node's pubkey, the response and the payment still use
 664 /// blinded paths as required by the spec.
 665 #[test]
 666 fn pays_for_offer_without_blinded_paths() {
 667         let chanmon_cfgs = create_chanmon_cfgs(2);
 668         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 669         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 670         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 671
 672         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 673
 674         let alice = &nodes[0];
 675         let alice_id = alice.node.get_our_node_id();
 676         let bob = &nodes[1];
 677         let bob_id = bob.node.get_our_node_id();
 678
 679         let offer = alice.node
 680                 .create_offer_builder().unwrap()
 681                 .clear_paths()
 682                 .amount_msats(10_000_000)
 683                 .build().unwrap();
 684         assert_eq!(offer.signing_pubkey(), Some(alice_id));
 685         assert!(offer.paths().is_empty());
 686
 687         let payment_id = PaymentId([1; 32]);
 688         bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None).unwrap();
 689         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 690
 691         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 692         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 693
 694         let (invoice_request, _) = extract_invoice_request(alice, &onion_message);
 695         let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext {
 696                 offer_id: offer.id(),
 697                 invoice_request: InvoiceRequestFields {
 698                         payer_id: invoice_request.payer_id(),
 699                         quantity: None,
 700                         payer_note_truncated: None,
 701                 },
 702         });
 703
 704         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 705         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 706
 707         let invoice = extract_invoice(bob, &onion_message);
 708         route_bolt12_payment(bob, &[alice], &invoice);
 709         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 710
 711         claim_bolt12_payment(bob, &[alice], payment_context);
 712         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 713 }
 714
 715 /// Checks that a refund without any blinded paths can be paid. Note that while the invoice is sent
 716 /// directly using the node's pubkey, the payment still use blinded paths as required by the spec.
 717 #[test]
 718 fn pays_for_refund_without_blinded_paths() {
 719         let chanmon_cfgs = create_chanmon_cfgs(2);
 720         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 721         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 722         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 723
 724         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 725
 726         let alice = &nodes[0];
 727         let alice_id = alice.node.get_our_node_id();
 728         let bob = &nodes[1];
 729         let bob_id = bob.node.get_our_node_id();
 730
 731         let absolute_expiry = Duration::from_secs(u64::MAX);
 732         let payment_id = PaymentId([1; 32]);
 733         let refund = bob.node
 734                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
 735                 .unwrap()
 736                 .clear_paths()
 737                 .build().unwrap();
 738         assert_eq!(refund.payer_id(), bob_id);
 739         assert!(refund.paths().is_empty());
 740         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 741
 742         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
 743         let expected_invoice = alice.node.request_refund_payment(&refund).unwrap();
 744
 745         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 746         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 747
 748         let invoice = extract_invoice(bob, &onion_message);
 749         assert_eq!(invoice, expected_invoice);
 750
 751         route_bolt12_payment(bob, &[alice], &invoice);
 752         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 753
 754         claim_bolt12_payment(bob, &[alice], payment_context);
 755         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 756 }
 757
 758 /// Fails creating an offer when a blinded path cannot be created without exposing the node's id.
 759 #[test]
 760 fn fails_creating_offer_without_blinded_paths() {
 761         let chanmon_cfgs = create_chanmon_cfgs(2);
 762         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 763         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 764         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 765
 766         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 767
 768         match nodes[0].node.create_offer_builder() {
 769                 Ok(_) => panic!("Expected error"),
 770                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 771         }
 772 }
 773
 774 /// Fails creating a refund when a blinded path cannot be created without exposing the node's id.
 775 #[test]
 776 fn fails_creating_refund_without_blinded_paths() {
 777         let chanmon_cfgs = create_chanmon_cfgs(2);
 778         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 779         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 780         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 781
 782         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 783
 784         let absolute_expiry = Duration::from_secs(u64::MAX);
 785         let payment_id = PaymentId([1; 32]);
 786
 787         match nodes[0].node.create_refund_builder(
 788                 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 789         ) {
 790                 Ok(_) => panic!("Expected error"),
 791                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 792         }
 793
 794         assert!(nodes[0].node.list_recent_payments().is_empty());
 795 }
 796
 797 /// Fails creating an invoice request when the offer contains an unsupported chain.
 798 #[test]
 799 fn fails_creating_invoice_request_for_unsupported_chain() {
 800         let chanmon_cfgs = create_chanmon_cfgs(2);
 801         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 802         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 803         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 804
 805         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 806
 807         let alice = &nodes[0];
 808         let bob = &nodes[1];
 809
 810         let offer = alice.node
 811                 .create_offer_builder().unwrap()
 812                 .clear_chains()
 813                 .chain(Network::Signet)
 814                 .build().unwrap();
 815
 816         let payment_id = PaymentId([1; 32]);
 817         match bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
 818                 Ok(_) => panic!("Expected error"),
 819                 Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedChain),
 820         }
 821 }
 822
 823 /// Fails requesting a payment when the refund contains an unsupported chain.
 824 #[test]
 825 fn fails_sending_invoice_with_unsupported_chain_for_refund() {
 826         let chanmon_cfgs = create_chanmon_cfgs(2);
 827         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 828         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 829         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 830
 831         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 832
 833         let alice = &nodes[0];
 834         let bob = &nodes[1];
 835
 836         let absolute_expiry = Duration::from_secs(u64::MAX);
 837         let payment_id = PaymentId([1; 32]);
 838         let refund = bob.node
 839                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
 840                 .unwrap()
 841                 .chain(Network::Signet)
 842                 .build().unwrap();
 843
 844         match alice.node.request_refund_payment(&refund) {
 845                 Ok(_) => panic!("Expected error"),
 846                 Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedChain),
 847         }
 848 }
 849
 850 /// Fails creating an invoice request when a blinded reply path cannot be created without exposing
 851 /// the node's id.
 852 #[test]
 853 fn fails_creating_invoice_request_without_blinded_reply_path() {
 854         let chanmon_cfgs = create_chanmon_cfgs(6);
 855         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 856         let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
 857         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 858
 859         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 860         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 861         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 862         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 863         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 864
 865         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 866
 867         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 868         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 869
 870         let offer = alice.node
 871                 .create_offer_builder().unwrap()
 872                 .amount_msats(10_000_000)
 873                 .build().unwrap();
 874
 875         let payment_id = PaymentId([1; 32]);
 876
 877         match david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
 878                 Ok(_) => panic!("Expected error"),
 879                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 880         }
 881
 882         assert!(nodes[0].node.list_recent_payments().is_empty());
 883 }
 884
 885 #[test]
 886 fn fails_creating_invoice_request_with_duplicate_payment_id() {
 887         let chanmon_cfgs = create_chanmon_cfgs(6);
 888         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 889         let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
 890         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 891
 892         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 893         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 894         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 895         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 896         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 897         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 898         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 899
 900         let (alice, _bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 901
 902         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 903
 904         let offer = alice.node
 905                 .create_offer_builder().unwrap()
 906                 .amount_msats(10_000_000)
 907                 .build().unwrap();
 908
 909         let payment_id = PaymentId([1; 32]);
 910         assert!(
 911                 david.node.pay_for_offer(
 912                         &offer, None, None, None, payment_id, Retry::Attempts(0), None
 913                 ).is_ok()
 914         );
 915         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 916
 917         match david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
 918                 Ok(_) => panic!("Expected error"),
 919                 Err(e) => assert_eq!(e, Bolt12SemanticError::DuplicatePaymentId),
 920         }
 921
 922         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 923 }
 924
 925 #[test]
 926 fn fails_creating_refund_with_duplicate_payment_id() {
 927         let chanmon_cfgs = create_chanmon_cfgs(2);
 928         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 929         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 930         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 931
 932         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 933
 934         let absolute_expiry = Duration::from_secs(u64::MAX);
 935         let payment_id = PaymentId([1; 32]);
 936         assert!(
 937                 nodes[0].node.create_refund_builder(
 938                         10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 939                 ).is_ok()
 940         );
 941         expect_recent_payment!(nodes[0], RecentPaymentDetails::AwaitingInvoice, payment_id);
 942
 943         match nodes[0].node.create_refund_builder(
 944                 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 945         ) {
 946                 Ok(_) => panic!("Expected error"),
 947                 Err(e) => assert_eq!(e, Bolt12SemanticError::DuplicatePaymentId),
 948         }
 949
 950         expect_recent_payment!(nodes[0], RecentPaymentDetails::AwaitingInvoice, payment_id);
 951 }
 952
 953 #[test]
 954 fn fails_sending_invoice_without_blinded_payment_paths_for_offer() {
 955         let mut accept_forward_cfg = test_default_channel_config();
 956         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 957
 958         // Clearing route_blinding prevents forming any payment paths since the node is unannounced.
 959         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 960         features.set_onion_messages_optional();
 961         features.clear_route_blinding();
 962
 963         let chanmon_cfgs = create_chanmon_cfgs(6);
 964         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 965
 966         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 967
 968         let node_chanmgrs = create_node_chanmgrs(
 969                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 970         );
 971         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 972
 973         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 974         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 975         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 976         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 977         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 978         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 979         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 980
 981         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 982         let alice_id = alice.node.get_our_node_id();
 983         let bob_id = bob.node.get_our_node_id();
 984         let charlie_id = charlie.node.get_our_node_id();
 985         let david_id = david.node.get_our_node_id();
 986
 987         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 988         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 989
 990         let offer = alice.node
 991                 .create_offer_builder().unwrap()
 992                 .amount_msats(10_000_000)
 993                 .build().unwrap();
 994
 995         let payment_id = PaymentId([1; 32]);
 996         david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None)
 997                 .unwrap();
 998
 999         connect_peers(david, bob);
1000
1001         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
1002         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
1003
1004         connect_peers(alice, charlie);
1005
1006         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
1007         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
1008
1009         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1010         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1011
1012         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1013         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1014
1015         let invoice_error = extract_invoice_error(david, &onion_message);
1016         assert_eq!(invoice_error, InvoiceError::from(Bolt12SemanticError::MissingPaths));
1017 }
1018
1019 #[test]
1020 fn fails_sending_invoice_without_blinded_payment_paths_for_refund() {
1021         let mut accept_forward_cfg = test_default_channel_config();
1022         accept_forward_cfg.accept_forwards_to_priv_channels = true;
1023
1024         // Clearing route_blinding prevents forming any payment paths since the node is unannounced.
1025         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
1026         features.set_onion_messages_optional();
1027         features.clear_route_blinding();
1028
1029         let chanmon_cfgs = create_chanmon_cfgs(6);
1030         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
1031
1032         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
1033
1034         let node_chanmgrs = create_node_chanmgrs(
1035                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
1036         );
1037         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1038
1039         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1040         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
1041         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
1042         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
1043         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
1044         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
1045         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
1046
1047         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
1048
1049         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
1050         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
1051
1052         let absolute_expiry = Duration::from_secs(u64::MAX);
1053         let payment_id = PaymentId([1; 32]);
1054         let refund = david.node
1055                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
1056                 .unwrap()
1057                 .build().unwrap();
1058
1059         match alice.node.request_refund_payment(&refund) {
1060                 Ok(_) => panic!("Expected error"),
1061                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
1062         }
1063 }
1064
1065 #[test]
1066 fn fails_paying_invoice_more_than_once() {
1067         let mut accept_forward_cfg = test_default_channel_config();
1068         accept_forward_cfg.accept_forwards_to_priv_channels = true;
1069
1070         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
1071         features.set_onion_messages_optional();
1072         features.set_route_blinding_optional();
1073
1074         let chanmon_cfgs = create_chanmon_cfgs(6);
1075         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
1076
1077         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
1078
1079         let node_chanmgrs = create_node_chanmgrs(
1080                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
1081         );
1082         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1083
1084         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1085         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
1086         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
1087         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
1088         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
1089         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
1090         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
1091
1092         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
1093         let alice_id = alice.node.get_our_node_id();
1094         let bob_id = bob.node.get_our_node_id();
1095         let charlie_id = charlie.node.get_our_node_id();
1096         let david_id = david.node.get_our_node_id();
1097
1098         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
1099         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
1100
1101         let absolute_expiry = Duration::from_secs(u64::MAX);
1102         let payment_id = PaymentId([1; 32]);
1103         let refund = david.node
1104                 .create_refund_builder(10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None)
1105                 .unwrap()
1106                 .build().unwrap();
1107         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
1108
1109         // Alice sends the first invoice
1110         alice.node.request_refund_payment(&refund).unwrap();
1111
1112         connect_peers(alice, charlie);
1113
1114         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1115         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1116
1117         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1118         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1119
1120         // David pays the first invoice
1121         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
1122         let invoice1 = extract_invoice(david, &onion_message);
1123
1124         route_bolt12_payment(david, &[charlie, bob, alice], &invoice1);
1125         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
1126
1127         claim_bolt12_payment(david, &[charlie, bob, alice], payment_context);
1128         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
1129
1130         disconnect_peers(alice, &[charlie]);
1131
1132         // Alice sends the second invoice
1133         alice.node.request_refund_payment(&refund).unwrap();
1134
1135         connect_peers(alice, charlie);
1136         connect_peers(david, bob);
1137
1138         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1139         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1140
1141         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1142         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1143
1144         let invoice2 = extract_invoice(david, &onion_message);
1145         assert_eq!(invoice1.payer_metadata(), invoice2.payer_metadata());
1146
1147         // David sends an error instead of paying the second invoice
1148         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
1149         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
1150
1151         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
1152         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
1153
1154         let invoice_error = extract_invoice_error(alice, &onion_message);
1155         assert_eq!(invoice_error, InvoiceError::from_string("DuplicateInvoice".to_string()));
1156 }