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