_ 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;
  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         let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext { offer_id: offer.id() });
 389         assert_ne!(offer.signing_pubkey(), alice_id);
 390         assert!(!offer.paths().is_empty());
 391         for path in offer.paths() {
 392                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 393         }
 394
 395         let payment_id = PaymentId([1; 32]);
 396         david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None)
 397                 .unwrap();
 398         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 399
 400         connect_peers(david, bob);
 401
 402         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 403         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
 404
 405         connect_peers(alice, charlie);
 406
 407         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 408         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 409
 410         let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message);
 411         assert_eq!(invoice_request.amount_msats(), None);
 412         assert_ne!(invoice_request.payer_id(), david_id);
 413         assert_eq!(reply_path.unwrap().introduction_node, IntroductionNode::NodeId(charlie_id));
 414
 415         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
 416         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 417
 418         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
 419         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
 420
 421         let invoice = extract_invoice(david, &onion_message);
 422         assert_eq!(invoice.amount_msats(), 10_000_000);
 423         assert_ne!(invoice.signing_pubkey(), alice_id);
 424         assert!(!invoice.payment_paths().is_empty());
 425         for (_, path) in invoice.payment_paths() {
 426                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 427         }
 428
 429         route_bolt12_payment(david, &[charlie, bob, alice], &invoice);
 430         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
 431
 432         claim_bolt12_payment(david, &[charlie, bob, alice], payment_context);
 433         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
 434 }
 435
 436 /// Checks that a refund can be paid through blinded paths and that ephemeral pubkeys are used
 437 /// rather than exposing a node's pubkey.
 438 #[test]
 439 fn creates_and_pays_for_refund_using_two_hop_blinded_path() {
 440         let mut accept_forward_cfg = test_default_channel_config();
 441         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 442
 443         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 444         features.set_onion_messages_optional();
 445         features.set_route_blinding_optional();
 446
 447         let chanmon_cfgs = create_chanmon_cfgs(6);
 448         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 449
 450         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 451
 452         let node_chanmgrs = create_node_chanmgrs(
 453                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 454         );
 455         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 456
 457         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 458         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 459         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 460         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 461         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 462         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 463         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 464
 465         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 466         let alice_id = alice.node.get_our_node_id();
 467         let bob_id = bob.node.get_our_node_id();
 468         let charlie_id = charlie.node.get_our_node_id();
 469         let david_id = david.node.get_our_node_id();
 470
 471         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 472         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 473
 474         let absolute_expiry = Duration::from_secs(u64::MAX);
 475         let payment_id = PaymentId([1; 32]);
 476         let refund = david.node
 477                 .create_refund_builder(
 478                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 479                 )
 480                 .unwrap()
 481                 .build().unwrap();
 482         assert_eq!(refund.amount_msats(), 10_000_000);
 483         assert_eq!(refund.absolute_expiry(), Some(absolute_expiry));
 484         assert_ne!(refund.payer_id(), david_id);
 485         assert!(!refund.paths().is_empty());
 486         for path in refund.paths() {
 487                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(charlie_id));
 488         }
 489         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 490
 491         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
 492         let expected_invoice = alice.node.request_refund_payment(&refund).unwrap();
 493
 494         connect_peers(alice, charlie);
 495
 496         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
 497         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 498
 499         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
 500         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
 501
 502         let invoice = extract_invoice(david, &onion_message);
 503         assert_eq!(invoice, expected_invoice);
 504
 505         assert_eq!(invoice.amount_msats(), 10_000_000);
 506         assert_ne!(invoice.signing_pubkey(), alice_id);
 507         assert!(!invoice.payment_paths().is_empty());
 508         for (_, path) in invoice.payment_paths() {
 509                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 510         }
 511
 512         route_bolt12_payment(david, &[charlie, bob, alice], &invoice);
 513         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
 514
 515         claim_bolt12_payment(david, &[charlie, bob, alice], payment_context);
 516         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
 517 }
 518
 519 /// Checks that an offer can be paid through a one-hop blinded path and that ephemeral pubkeys are
 520 /// used rather than exposing a node's pubkey. However, the node's pubkey is still used as the
 521 /// introduction node of the blinded path.
 522 #[test]
 523 fn creates_and_pays_for_offer_using_one_hop_blinded_path() {
 524         let chanmon_cfgs = create_chanmon_cfgs(2);
 525         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 526         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 527         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 528
 529         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 530
 531         let alice = &nodes[0];
 532         let alice_id = alice.node.get_our_node_id();
 533         let bob = &nodes[1];
 534         let bob_id = bob.node.get_our_node_id();
 535
 536         let offer = alice.node
 537                 .create_offer_builder("coffee".to_string()).unwrap()
 538                 .amount_msats(10_000_000)
 539                 .build().unwrap();
 540         let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext { offer_id: offer.id() });
 541         assert_ne!(offer.signing_pubkey(), alice_id);
 542         assert!(!offer.paths().is_empty());
 543         for path in offer.paths() {
 544                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
 545         }
 546
 547         let payment_id = PaymentId([1; 32]);
 548         bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None).unwrap();
 549         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 550
 551         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 552         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 553
 554         let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message);
 555         assert_eq!(invoice_request.amount_msats(), None);
 556         assert_ne!(invoice_request.payer_id(), bob_id);
 557         assert_eq!(reply_path.unwrap().introduction_node, IntroductionNode::NodeId(bob_id));
 558
 559         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 560         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 561
 562         let invoice = extract_invoice(bob, &onion_message);
 563         assert_eq!(invoice.amount_msats(), 10_000_000);
 564         assert_ne!(invoice.signing_pubkey(), alice_id);
 565         assert!(!invoice.payment_paths().is_empty());
 566         for (_, path) in invoice.payment_paths() {
 567                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
 568         }
 569
 570         route_bolt12_payment(bob, &[alice], &invoice);
 571         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 572
 573         claim_bolt12_payment(bob, &[alice], payment_context);
 574         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 575 }
 576
 577 /// Checks that a refund can be paid through a one-hop blinded path and that ephemeral pubkeys are
 578 /// used rather than exposing a node's pubkey. However, the node's pubkey is still used as the
 579 /// introduction node of the blinded path.
 580 #[test]
 581 fn creates_and_pays_for_refund_using_one_hop_blinded_path() {
 582         let chanmon_cfgs = create_chanmon_cfgs(2);
 583         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 584         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 585         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 586
 587         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 588
 589         let alice = &nodes[0];
 590         let alice_id = alice.node.get_our_node_id();
 591         let bob = &nodes[1];
 592         let bob_id = bob.node.get_our_node_id();
 593
 594         let absolute_expiry = Duration::from_secs(u64::MAX);
 595         let payment_id = PaymentId([1; 32]);
 596         let refund = bob.node
 597                 .create_refund_builder(
 598                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 599                 )
 600                 .unwrap()
 601                 .build().unwrap();
 602         assert_eq!(refund.amount_msats(), 10_000_000);
 603         assert_eq!(refund.absolute_expiry(), Some(absolute_expiry));
 604         assert_ne!(refund.payer_id(), bob_id);
 605         assert!(!refund.paths().is_empty());
 606         for path in refund.paths() {
 607                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 608         }
 609         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 610
 611         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
 612         let expected_invoice = alice.node.request_refund_payment(&refund).unwrap();
 613
 614         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 615         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 616
 617         let invoice = extract_invoice(bob, &onion_message);
 618         assert_eq!(invoice, expected_invoice);
 619
 620         assert_eq!(invoice.amount_msats(), 10_000_000);
 621         assert_ne!(invoice.signing_pubkey(), alice_id);
 622         assert!(!invoice.payment_paths().is_empty());
 623         for (_, path) in invoice.payment_paths() {
 624                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
 625         }
 626
 627         route_bolt12_payment(bob, &[alice], &invoice);
 628         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 629
 630         claim_bolt12_payment(bob, &[alice], payment_context);
 631         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 632 }
 633
 634 /// Checks that an invoice for an offer without any blinded paths can be requested. Note that while
 635 /// the requested is sent directly using the node's pubkey, the response and the payment still use
 636 /// blinded paths as required by the spec.
 637 #[test]
 638 fn pays_for_offer_without_blinded_paths() {
 639         let chanmon_cfgs = create_chanmon_cfgs(2);
 640         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 641         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 642         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 643
 644         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 645
 646         let alice = &nodes[0];
 647         let alice_id = alice.node.get_our_node_id();
 648         let bob = &nodes[1];
 649         let bob_id = bob.node.get_our_node_id();
 650
 651         let offer = alice.node
 652                 .create_offer_builder("coffee".to_string()).unwrap()
 653                 .clear_paths()
 654                 .amount_msats(10_000_000)
 655                 .build().unwrap();
 656         let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext { offer_id: offer.id() });
 657         assert_eq!(offer.signing_pubkey(), alice_id);
 658         assert!(offer.paths().is_empty());
 659
 660         let payment_id = PaymentId([1; 32]);
 661         bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None).unwrap();
 662         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 663
 664         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 665         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 666
 667         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 668         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 669
 670         let invoice = extract_invoice(bob, &onion_message);
 671         route_bolt12_payment(bob, &[alice], &invoice);
 672         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 673
 674         claim_bolt12_payment(bob, &[alice], payment_context);
 675         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 676 }
 677
 678 /// Checks that a refund without any blinded paths can be paid. Note that while the invoice is sent
 679 /// directly using the node's pubkey, the payment still use blinded paths as required by the spec.
 680 #[test]
 681 fn pays_for_refund_without_blinded_paths() {
 682         let chanmon_cfgs = create_chanmon_cfgs(2);
 683         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 684         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 685         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 686
 687         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 688
 689         let alice = &nodes[0];
 690         let alice_id = alice.node.get_our_node_id();
 691         let bob = &nodes[1];
 692         let bob_id = bob.node.get_our_node_id();
 693
 694         let absolute_expiry = Duration::from_secs(u64::MAX);
 695         let payment_id = PaymentId([1; 32]);
 696         let refund = bob.node
 697                 .create_refund_builder(
 698                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 699                 )
 700                 .unwrap()
 701                 .clear_paths()
 702                 .build().unwrap();
 703         assert_eq!(refund.payer_id(), bob_id);
 704         assert!(refund.paths().is_empty());
 705         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 706
 707         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
 708         let expected_invoice = alice.node.request_refund_payment(&refund).unwrap();
 709
 710         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 711         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 712
 713         let invoice = extract_invoice(bob, &onion_message);
 714         assert_eq!(invoice, expected_invoice);
 715
 716         route_bolt12_payment(bob, &[alice], &invoice);
 717         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 718
 719         claim_bolt12_payment(bob, &[alice], payment_context);
 720         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 721 }
 722
 723 /// Fails creating an offer when a blinded path cannot be created without exposing the node's id.
 724 #[test]
 725 fn fails_creating_offer_without_blinded_paths() {
 726         let chanmon_cfgs = create_chanmon_cfgs(2);
 727         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 728         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 729         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 730
 731         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 732
 733         match nodes[0].node.create_offer_builder("coffee".to_string()) {
 734                 Ok(_) => panic!("Expected error"),
 735                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 736         }
 737 }
 738
 739 /// Fails creating a refund when a blinded path cannot be created without exposing the node's id.
 740 #[test]
 741 fn fails_creating_refund_without_blinded_paths() {
 742         let chanmon_cfgs = create_chanmon_cfgs(2);
 743         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 744         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 745         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 746
 747         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 748
 749         let absolute_expiry = Duration::from_secs(u64::MAX);
 750         let payment_id = PaymentId([1; 32]);
 751
 752         match nodes[0].node.create_refund_builder(
 753                 "refund".to_string(), 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 754         ) {
 755                 Ok(_) => panic!("Expected error"),
 756                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 757         }
 758
 759         assert!(nodes[0].node.list_recent_payments().is_empty());
 760 }
 761
 762 /// Fails creating an invoice request when the offer contains an unsupported chain.
 763 #[test]
 764 fn fails_creating_invoice_request_for_unsupported_chain() {
 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_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 771
 772         let alice = &nodes[0];
 773         let bob = &nodes[1];
 774
 775         let offer = alice.node
 776                 .create_offer_builder("coffee".to_string()).unwrap()
 777                 .clear_chains()
 778                 .chain(Network::Signet)
 779                 .build().unwrap();
 780
 781         let payment_id = PaymentId([1; 32]);
 782         match bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
 783                 Ok(_) => panic!("Expected error"),
 784                 Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedChain),
 785         }
 786 }
 787
 788 /// Fails requesting a payment when the refund contains an unsupported chain.
 789 #[test]
 790 fn fails_sending_invoice_with_unsupported_chain_for_refund() {
 791         let chanmon_cfgs = create_chanmon_cfgs(2);
 792         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 793         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 794         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 795
 796         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 797
 798         let alice = &nodes[0];
 799         let bob = &nodes[1];
 800
 801         let absolute_expiry = Duration::from_secs(u64::MAX);
 802         let payment_id = PaymentId([1; 32]);
 803         let refund = bob.node
 804                 .create_refund_builder(
 805                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 806                 )
 807                 .unwrap()
 808                 .chain(Network::Signet)
 809                 .build().unwrap();
 810
 811         match alice.node.request_refund_payment(&refund) {
 812                 Ok(_) => panic!("Expected error"),
 813                 Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedChain),
 814         }
 815 }
 816
 817 /// Fails creating an invoice request when a blinded reply path cannot be created without exposing
 818 /// the node's id.
 819 #[test]
 820 fn fails_creating_invoice_request_without_blinded_reply_path() {
 821         let chanmon_cfgs = create_chanmon_cfgs(6);
 822         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 823         let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
 824         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 825
 826         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 827         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 828         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 829         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 830         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 831
 832         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 833
 834         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 835         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 836
 837         let offer = alice.node
 838                 .create_offer_builder("coffee".to_string()).unwrap()
 839                 .amount_msats(10_000_000)
 840                 .build().unwrap();
 841
 842         let payment_id = PaymentId([1; 32]);
 843
 844         match david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
 845                 Ok(_) => panic!("Expected error"),
 846                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 847         }
 848
 849         assert!(nodes[0].node.list_recent_payments().is_empty());
 850 }
 851
 852 #[test]
 853 fn fails_creating_invoice_request_with_duplicate_payment_id() {
 854         let chanmon_cfgs = create_chanmon_cfgs(6);
 855         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 856         let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
 857         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 858
 859         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 860         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 861         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 862         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 863         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 864         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 865         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 866
 867         let (alice, _bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 868
 869         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 870
 871         let offer = alice.node
 872                 .create_offer_builder("coffee".to_string()).unwrap()
 873                 .amount_msats(10_000_000)
 874                 .build().unwrap();
 875
 876         let payment_id = PaymentId([1; 32]);
 877         assert!(
 878                 david.node.pay_for_offer(
 879                         &offer, None, None, None, payment_id, Retry::Attempts(0), None
 880                 ).is_ok()
 881         );
 882         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 883
 884         match david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
 885                 Ok(_) => panic!("Expected error"),
 886                 Err(e) => assert_eq!(e, Bolt12SemanticError::DuplicatePaymentId),
 887         }
 888
 889         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 890 }
 891
 892 #[test]
 893 fn fails_creating_refund_with_duplicate_payment_id() {
 894         let chanmon_cfgs = create_chanmon_cfgs(2);
 895         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 896         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 897         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 898
 899         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 900
 901         let absolute_expiry = Duration::from_secs(u64::MAX);
 902         let payment_id = PaymentId([1; 32]);
 903         assert!(
 904                 nodes[0].node.create_refund_builder(
 905                         "refund".to_string(), 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 906                 ).is_ok()
 907         );
 908         expect_recent_payment!(nodes[0], RecentPaymentDetails::AwaitingInvoice, payment_id);
 909
 910         match nodes[0].node.create_refund_builder(
 911                 "refund".to_string(), 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 912         ) {
 913                 Ok(_) => panic!("Expected error"),
 914                 Err(e) => assert_eq!(e, Bolt12SemanticError::DuplicatePaymentId),
 915         }
 916
 917         expect_recent_payment!(nodes[0], RecentPaymentDetails::AwaitingInvoice, payment_id);
 918 }
 919
 920 #[test]
 921 fn fails_sending_invoice_without_blinded_payment_paths_for_offer() {
 922         let mut accept_forward_cfg = test_default_channel_config();
 923         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 924
 925         // Clearing route_blinding prevents forming any payment paths since the node is unannounced.
 926         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 927         features.set_onion_messages_optional();
 928         features.clear_route_blinding();
 929
 930         let chanmon_cfgs = create_chanmon_cfgs(6);
 931         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 932
 933         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 934
 935         let node_chanmgrs = create_node_chanmgrs(
 936                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 937         );
 938         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 939
 940         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 941         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 942         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 943         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 944         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 945         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 946         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 947
 948         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 949         let alice_id = alice.node.get_our_node_id();
 950         let bob_id = bob.node.get_our_node_id();
 951         let charlie_id = charlie.node.get_our_node_id();
 952         let david_id = david.node.get_our_node_id();
 953
 954         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 955         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 956
 957         let offer = alice.node
 958                 .create_offer_builder("coffee".to_string()).unwrap()
 959                 .amount_msats(10_000_000)
 960                 .build().unwrap();
 961
 962         let payment_id = PaymentId([1; 32]);
 963         david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None)
 964                 .unwrap();
 965
 966         connect_peers(david, bob);
 967
 968         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 969         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
 970
 971         connect_peers(alice, charlie);
 972
 973         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 974         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 975
 976         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
 977         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 978
 979         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
 980         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
 981
 982         let invoice_error = extract_invoice_error(david, &onion_message);
 983         assert_eq!(invoice_error, InvoiceError::from(Bolt12SemanticError::MissingPaths));
 984 }
 985
 986 #[test]
 987 fn fails_sending_invoice_without_blinded_payment_paths_for_refund() {
 988         let mut accept_forward_cfg = test_default_channel_config();
 989         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 990
 991         // Clearing route_blinding prevents forming any payment paths since the node is unannounced.
 992         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 993         features.set_onion_messages_optional();
 994         features.clear_route_blinding();
 995
 996         let chanmon_cfgs = create_chanmon_cfgs(6);
 997         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 998
 999         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
1000
1001         let node_chanmgrs = create_node_chanmgrs(
1002                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
1003         );
1004         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1005
1006         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1007         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
1008         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
1009         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
1010         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
1011         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
1012         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
1013
1014         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
1015
1016         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
1017         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
1018
1019         let absolute_expiry = Duration::from_secs(u64::MAX);
1020         let payment_id = PaymentId([1; 32]);
1021         let refund = david.node
1022                 .create_refund_builder(
1023                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
1024                 )
1025                 .unwrap()
1026                 .build().unwrap();
1027
1028         match alice.node.request_refund_payment(&refund) {
1029                 Ok(_) => panic!("Expected error"),
1030                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
1031         }
1032 }
1033
1034 #[test]
1035 fn fails_paying_invoice_more_than_once() {
1036         let mut accept_forward_cfg = test_default_channel_config();
1037         accept_forward_cfg.accept_forwards_to_priv_channels = true;
1038
1039         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
1040         features.set_onion_messages_optional();
1041         features.set_route_blinding_optional();
1042
1043         let chanmon_cfgs = create_chanmon_cfgs(6);
1044         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
1045
1046         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
1047
1048         let node_chanmgrs = create_node_chanmgrs(
1049                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
1050         );
1051         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1052
1053         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1054         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
1055         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
1056         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
1057         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
1058         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
1059         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
1060
1061         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
1062         let alice_id = alice.node.get_our_node_id();
1063         let bob_id = bob.node.get_our_node_id();
1064         let charlie_id = charlie.node.get_our_node_id();
1065         let david_id = david.node.get_our_node_id();
1066
1067         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
1068         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
1069
1070         let absolute_expiry = Duration::from_secs(u64::MAX);
1071         let payment_id = PaymentId([1; 32]);
1072         let refund = david.node
1073                 .create_refund_builder(
1074                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
1075                 )
1076                 .unwrap()
1077                 .build().unwrap();
1078         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
1079
1080         // Alice sends the first invoice
1081         alice.node.request_refund_payment(&refund).unwrap();
1082
1083         connect_peers(alice, charlie);
1084
1085         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1086         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1087
1088         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1089         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1090
1091         // David pays the first invoice
1092         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
1093         let invoice1 = extract_invoice(david, &onion_message);
1094
1095         route_bolt12_payment(david, &[charlie, bob, alice], &invoice1);
1096         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
1097
1098         claim_bolt12_payment(david, &[charlie, bob, alice], payment_context);
1099         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
1100
1101         disconnect_peers(alice, &[charlie]);
1102
1103         // Alice sends the second invoice
1104         alice.node.request_refund_payment(&refund).unwrap();
1105
1106         connect_peers(alice, charlie);
1107         connect_peers(david, bob);
1108
1109         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1110         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1111
1112         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1113         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1114
1115         let invoice2 = extract_invoice(david, &onion_message);
1116         assert_eq!(invoice1.payer_metadata(), invoice2.payer_metadata());
1117
1118         // David sends an error instead of paying the second invoice
1119         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
1120         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
1121
1122         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
1123         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
1124
1125         let invoice_error = extract_invoice_error(alice, &onion_message);
1126         assert_eq!(invoice_error, InvoiceError::from_string("DuplicateInvoice".to_string()));
1127 }