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