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