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