_ 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                         features: InvoiceRequestFeatures::empty(),
 416                         quantity: None,
 417                         payer_note_truncated: None,
 418                 },
 419         });
 420         assert_eq!(invoice_request.amount_msats(), None);
 421         assert_ne!(invoice_request.payer_id(), david_id);
 422         assert_eq!(reply_path.unwrap().introduction_node, IntroductionNode::NodeId(charlie_id));
 423
 424         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
 425         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 426
 427         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
 428         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
 429
 430         let invoice = extract_invoice(david, &onion_message);
 431         assert_eq!(invoice.amount_msats(), 10_000_000);
 432         assert_ne!(invoice.signing_pubkey(), alice_id);
 433         assert!(!invoice.payment_paths().is_empty());
 434         for (_, path) in invoice.payment_paths() {
 435                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 436         }
 437
 438         route_bolt12_payment(david, &[charlie, bob, alice], &invoice);
 439         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
 440
 441         claim_bolt12_payment(david, &[charlie, bob, alice], payment_context);
 442         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
 443 }
 444
 445 /// Checks that a refund can be paid through blinded paths and that ephemeral pubkeys are used
 446 /// rather than exposing a node's pubkey.
 447 #[test]
 448 fn creates_and_pays_for_refund_using_two_hop_blinded_path() {
 449         let mut accept_forward_cfg = test_default_channel_config();
 450         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 451
 452         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 453         features.set_onion_messages_optional();
 454         features.set_route_blinding_optional();
 455
 456         let chanmon_cfgs = create_chanmon_cfgs(6);
 457         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 458
 459         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 460
 461         let node_chanmgrs = create_node_chanmgrs(
 462                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 463         );
 464         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 465
 466         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 467         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 468         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 469         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 470         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 471         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 472         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 473
 474         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 475         let alice_id = alice.node.get_our_node_id();
 476         let bob_id = bob.node.get_our_node_id();
 477         let charlie_id = charlie.node.get_our_node_id();
 478         let david_id = david.node.get_our_node_id();
 479
 480         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 481         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 482
 483         let absolute_expiry = Duration::from_secs(u64::MAX);
 484         let payment_id = PaymentId([1; 32]);
 485         let refund = david.node
 486                 .create_refund_builder(
 487                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 488                 )
 489                 .unwrap()
 490                 .build().unwrap();
 491         assert_eq!(refund.amount_msats(), 10_000_000);
 492         assert_eq!(refund.absolute_expiry(), Some(absolute_expiry));
 493         assert_ne!(refund.payer_id(), david_id);
 494         assert!(!refund.paths().is_empty());
 495         for path in refund.paths() {
 496                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(charlie_id));
 497         }
 498         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 499
 500         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
 501         let expected_invoice = alice.node.request_refund_payment(&refund).unwrap();
 502
 503         connect_peers(alice, charlie);
 504
 505         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
 506         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 507
 508         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
 509         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
 510
 511         let invoice = extract_invoice(david, &onion_message);
 512         assert_eq!(invoice, expected_invoice);
 513
 514         assert_eq!(invoice.amount_msats(), 10_000_000);
 515         assert_ne!(invoice.signing_pubkey(), alice_id);
 516         assert!(!invoice.payment_paths().is_empty());
 517         for (_, path) in invoice.payment_paths() {
 518                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 519         }
 520
 521         route_bolt12_payment(david, &[charlie, bob, alice], &invoice);
 522         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
 523
 524         claim_bolt12_payment(david, &[charlie, bob, alice], payment_context);
 525         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
 526 }
 527
 528 /// Checks that an offer can be paid through a one-hop blinded path and that ephemeral pubkeys are
 529 /// used rather than exposing a node's pubkey. However, the node's pubkey is still used as the
 530 /// introduction node of the blinded path.
 531 #[test]
 532 fn creates_and_pays_for_offer_using_one_hop_blinded_path() {
 533         let chanmon_cfgs = create_chanmon_cfgs(2);
 534         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 535         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 536         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 537
 538         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 539
 540         let alice = &nodes[0];
 541         let alice_id = alice.node.get_our_node_id();
 542         let bob = &nodes[1];
 543         let bob_id = bob.node.get_our_node_id();
 544
 545         let offer = alice.node
 546                 .create_offer_builder("coffee".to_string()).unwrap()
 547                 .amount_msats(10_000_000)
 548                 .build().unwrap();
 549         assert_ne!(offer.signing_pubkey(), alice_id);
 550         assert!(!offer.paths().is_empty());
 551         for path in offer.paths() {
 552                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
 553         }
 554
 555         let payment_id = PaymentId([1; 32]);
 556         bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None).unwrap();
 557         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 558
 559         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 560         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 561
 562         let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message);
 563         let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext {
 564                 offer_id: offer.id(),
 565                 invoice_request: InvoiceRequestFields {
 566                         payer_id: invoice_request.payer_id(),
 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(
 615                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 616                 )
 617                 .unwrap()
 618                 .build().unwrap();
 619         assert_eq!(refund.amount_msats(), 10_000_000);
 620         assert_eq!(refund.absolute_expiry(), Some(absolute_expiry));
 621         assert_ne!(refund.payer_id(), bob_id);
 622         assert!(!refund.paths().is_empty());
 623         for path in refund.paths() {
 624                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
 625         }
 626         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 627
 628         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
 629         let expected_invoice = alice.node.request_refund_payment(&refund).unwrap();
 630
 631         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 632         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 633
 634         let invoice = extract_invoice(bob, &onion_message);
 635         assert_eq!(invoice, expected_invoice);
 636
 637         assert_eq!(invoice.amount_msats(), 10_000_000);
 638         assert_ne!(invoice.signing_pubkey(), alice_id);
 639         assert!(!invoice.payment_paths().is_empty());
 640         for (_, path) in invoice.payment_paths() {
 641                 assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
 642         }
 643
 644         route_bolt12_payment(bob, &[alice], &invoice);
 645         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 646
 647         claim_bolt12_payment(bob, &[alice], payment_context);
 648         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 649 }
 650
 651 /// Checks that an invoice for an offer without any blinded paths can be requested. Note that while
 652 /// the requested is sent directly using the node's pubkey, the response and the payment still use
 653 /// blinded paths as required by the spec.
 654 #[test]
 655 fn pays_for_offer_without_blinded_paths() {
 656         let chanmon_cfgs = create_chanmon_cfgs(2);
 657         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 658         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 659         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 660
 661         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 662
 663         let alice = &nodes[0];
 664         let alice_id = alice.node.get_our_node_id();
 665         let bob = &nodes[1];
 666         let bob_id = bob.node.get_our_node_id();
 667
 668         let offer = alice.node
 669                 .create_offer_builder("coffee".to_string()).unwrap()
 670                 .clear_paths()
 671                 .amount_msats(10_000_000)
 672                 .build().unwrap();
 673         assert_eq!(offer.signing_pubkey(), alice_id);
 674         assert!(offer.paths().is_empty());
 675
 676         let payment_id = PaymentId([1; 32]);
 677         bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None).unwrap();
 678         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 679
 680         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
 681         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
 682
 683         let (invoice_request, _) = extract_invoice_request(alice, &onion_message);
 684         let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext {
 685                 offer_id: offer.id(),
 686                 invoice_request: InvoiceRequestFields {
 687                         payer_id: invoice_request.payer_id(),
 688                         features: InvoiceRequestFeatures::empty(),
 689                         quantity: None,
 690                         payer_note_truncated: None,
 691                 },
 692         });
 693
 694         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 695         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 696
 697         let invoice = extract_invoice(bob, &onion_message);
 698         route_bolt12_payment(bob, &[alice], &invoice);
 699         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 700
 701         claim_bolt12_payment(bob, &[alice], payment_context);
 702         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 703 }
 704
 705 /// Checks that a refund without any blinded paths can be paid. Note that while the invoice is sent
 706 /// directly using the node's pubkey, the payment still use blinded paths as required by the spec.
 707 #[test]
 708 fn pays_for_refund_without_blinded_paths() {
 709         let chanmon_cfgs = create_chanmon_cfgs(2);
 710         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 711         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 712         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 713
 714         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 715
 716         let alice = &nodes[0];
 717         let alice_id = alice.node.get_our_node_id();
 718         let bob = &nodes[1];
 719         let bob_id = bob.node.get_our_node_id();
 720
 721         let absolute_expiry = Duration::from_secs(u64::MAX);
 722         let payment_id = PaymentId([1; 32]);
 723         let refund = bob.node
 724                 .create_refund_builder(
 725                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 726                 )
 727                 .unwrap()
 728                 .clear_paths()
 729                 .build().unwrap();
 730         assert_eq!(refund.payer_id(), bob_id);
 731         assert!(refund.paths().is_empty());
 732         expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 733
 734         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
 735         let expected_invoice = alice.node.request_refund_payment(&refund).unwrap();
 736
 737         let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 738         bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
 739
 740         let invoice = extract_invoice(bob, &onion_message);
 741         assert_eq!(invoice, expected_invoice);
 742
 743         route_bolt12_payment(bob, &[alice], &invoice);
 744         expect_recent_payment!(bob, RecentPaymentDetails::Pending, payment_id);
 745
 746         claim_bolt12_payment(bob, &[alice], payment_context);
 747         expect_recent_payment!(bob, RecentPaymentDetails::Fulfilled, payment_id);
 748 }
 749
 750 /// Fails creating an offer when a blinded path cannot be created without exposing the node's id.
 751 #[test]
 752 fn fails_creating_offer_without_blinded_paths() {
 753         let chanmon_cfgs = create_chanmon_cfgs(2);
 754         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 755         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 756         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 757
 758         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 759
 760         match nodes[0].node.create_offer_builder("coffee".to_string()) {
 761                 Ok(_) => panic!("Expected error"),
 762                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 763         }
 764 }
 765
 766 /// Fails creating a refund when a blinded path cannot be created without exposing the node's id.
 767 #[test]
 768 fn fails_creating_refund_without_blinded_paths() {
 769         let chanmon_cfgs = create_chanmon_cfgs(2);
 770         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 771         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 772         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 773
 774         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 775
 776         let absolute_expiry = Duration::from_secs(u64::MAX);
 777         let payment_id = PaymentId([1; 32]);
 778
 779         match nodes[0].node.create_refund_builder(
 780                 "refund".to_string(), 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 781         ) {
 782                 Ok(_) => panic!("Expected error"),
 783                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 784         }
 785
 786         assert!(nodes[0].node.list_recent_payments().is_empty());
 787 }
 788
 789 /// Fails creating an invoice request when the offer contains an unsupported chain.
 790 #[test]
 791 fn fails_creating_invoice_request_for_unsupported_chain() {
 792         let chanmon_cfgs = create_chanmon_cfgs(2);
 793         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 794         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 795         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 796
 797         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 798
 799         let alice = &nodes[0];
 800         let bob = &nodes[1];
 801
 802         let offer = alice.node
 803                 .create_offer_builder("coffee".to_string()).unwrap()
 804                 .clear_chains()
 805                 .chain(Network::Signet)
 806                 .build().unwrap();
 807
 808         let payment_id = PaymentId([1; 32]);
 809         match bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
 810                 Ok(_) => panic!("Expected error"),
 811                 Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedChain),
 812         }
 813 }
 814
 815 /// Fails requesting a payment when the refund contains an unsupported chain.
 816 #[test]
 817 fn fails_sending_invoice_with_unsupported_chain_for_refund() {
 818         let chanmon_cfgs = create_chanmon_cfgs(2);
 819         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 820         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 821         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 822
 823         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 824
 825         let alice = &nodes[0];
 826         let bob = &nodes[1];
 827
 828         let absolute_expiry = Duration::from_secs(u64::MAX);
 829         let payment_id = PaymentId([1; 32]);
 830         let refund = bob.node
 831                 .create_refund_builder(
 832                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 833                 )
 834                 .unwrap()
 835                 .chain(Network::Signet)
 836                 .build().unwrap();
 837
 838         match alice.node.request_refund_payment(&refund) {
 839                 Ok(_) => panic!("Expected error"),
 840                 Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedChain),
 841         }
 842 }
 843
 844 /// Fails creating an invoice request when a blinded reply path cannot be created without exposing
 845 /// the node's id.
 846 #[test]
 847 fn fails_creating_invoice_request_without_blinded_reply_path() {
 848         let chanmon_cfgs = create_chanmon_cfgs(6);
 849         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 850         let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
 851         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 852
 853         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 854         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 855         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 856         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 857         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 858
 859         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 860
 861         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 862         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 863
 864         let offer = alice.node
 865                 .create_offer_builder("coffee".to_string()).unwrap()
 866                 .amount_msats(10_000_000)
 867                 .build().unwrap();
 868
 869         let payment_id = PaymentId([1; 32]);
 870
 871         match david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
 872                 Ok(_) => panic!("Expected error"),
 873                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
 874         }
 875
 876         assert!(nodes[0].node.list_recent_payments().is_empty());
 877 }
 878
 879 #[test]
 880 fn fails_creating_invoice_request_with_duplicate_payment_id() {
 881         let chanmon_cfgs = create_chanmon_cfgs(6);
 882         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 883         let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
 884         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 885
 886         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 887         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 888         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 889         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 890         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 891         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 892         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 893
 894         let (alice, _bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 895
 896         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 897
 898         let offer = alice.node
 899                 .create_offer_builder("coffee".to_string()).unwrap()
 900                 .amount_msats(10_000_000)
 901                 .build().unwrap();
 902
 903         let payment_id = PaymentId([1; 32]);
 904         assert!(
 905                 david.node.pay_for_offer(
 906                         &offer, None, None, None, payment_id, Retry::Attempts(0), None
 907                 ).is_ok()
 908         );
 909         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 910
 911         match david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
 912                 Ok(_) => panic!("Expected error"),
 913                 Err(e) => assert_eq!(e, Bolt12SemanticError::DuplicatePaymentId),
 914         }
 915
 916         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 917 }
 918
 919 #[test]
 920 fn fails_creating_refund_with_duplicate_payment_id() {
 921         let chanmon_cfgs = create_chanmon_cfgs(2);
 922         let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
 923         let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
 924         let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 925
 926         create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 927
 928         let absolute_expiry = Duration::from_secs(u64::MAX);
 929         let payment_id = PaymentId([1; 32]);
 930         assert!(
 931                 nodes[0].node.create_refund_builder(
 932                         "refund".to_string(), 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 933                 ).is_ok()
 934         );
 935         expect_recent_payment!(nodes[0], RecentPaymentDetails::AwaitingInvoice, payment_id);
 936
 937         match nodes[0].node.create_refund_builder(
 938                 "refund".to_string(), 10_000, absolute_expiry, payment_id, Retry::Attempts(0), None
 939         ) {
 940                 Ok(_) => panic!("Expected error"),
 941                 Err(e) => assert_eq!(e, Bolt12SemanticError::DuplicatePaymentId),
 942         }
 943
 944         expect_recent_payment!(nodes[0], RecentPaymentDetails::AwaitingInvoice, payment_id);
 945 }
 946
 947 #[test]
 948 fn fails_sending_invoice_without_blinded_payment_paths_for_offer() {
 949         let mut accept_forward_cfg = test_default_channel_config();
 950         accept_forward_cfg.accept_forwards_to_priv_channels = true;
 951
 952         // Clearing route_blinding prevents forming any payment paths since the node is unannounced.
 953         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
 954         features.set_onion_messages_optional();
 955         features.clear_route_blinding();
 956
 957         let chanmon_cfgs = create_chanmon_cfgs(6);
 958         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
 959
 960         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
 961
 962         let node_chanmgrs = create_node_chanmgrs(
 963                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
 964         );
 965         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
 966
 967         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
 968         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
 969         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
 970         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
 971         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
 972         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
 973         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
 974
 975         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
 976         let alice_id = alice.node.get_our_node_id();
 977         let bob_id = bob.node.get_our_node_id();
 978         let charlie_id = charlie.node.get_our_node_id();
 979         let david_id = david.node.get_our_node_id();
 980
 981         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
 982         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 983
 984         let offer = alice.node
 985                 .create_offer_builder("coffee".to_string()).unwrap()
 986                 .amount_msats(10_000_000)
 987                 .build().unwrap();
 988
 989         let payment_id = PaymentId([1; 32]);
 990         david.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None)
 991                 .unwrap();
 992
 993         connect_peers(david, bob);
 994
 995         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
 996         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
 997
 998         connect_peers(alice, charlie);
 999
1000         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
1001         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
1002
1003         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1004         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1005
1006         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1007         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1008
1009         let invoice_error = extract_invoice_error(david, &onion_message);
1010         assert_eq!(invoice_error, InvoiceError::from(Bolt12SemanticError::MissingPaths));
1011 }
1012
1013 #[test]
1014 fn fails_sending_invoice_without_blinded_payment_paths_for_refund() {
1015         let mut accept_forward_cfg = test_default_channel_config();
1016         accept_forward_cfg.accept_forwards_to_priv_channels = true;
1017
1018         // Clearing route_blinding prevents forming any payment paths since the node is unannounced.
1019         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
1020         features.set_onion_messages_optional();
1021         features.clear_route_blinding();
1022
1023         let chanmon_cfgs = create_chanmon_cfgs(6);
1024         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
1025
1026         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
1027
1028         let node_chanmgrs = create_node_chanmgrs(
1029                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
1030         );
1031         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1032
1033         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1034         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
1035         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
1036         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
1037         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
1038         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
1039         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
1040
1041         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
1042
1043         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
1044         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
1045
1046         let absolute_expiry = Duration::from_secs(u64::MAX);
1047         let payment_id = PaymentId([1; 32]);
1048         let refund = david.node
1049                 .create_refund_builder(
1050                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
1051                 )
1052                 .unwrap()
1053                 .build().unwrap();
1054
1055         match alice.node.request_refund_payment(&refund) {
1056                 Ok(_) => panic!("Expected error"),
1057                 Err(e) => assert_eq!(e, Bolt12SemanticError::MissingPaths),
1058         }
1059 }
1060
1061 #[test]
1062 fn fails_paying_invoice_more_than_once() {
1063         let mut accept_forward_cfg = test_default_channel_config();
1064         accept_forward_cfg.accept_forwards_to_priv_channels = true;
1065
1066         let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
1067         features.set_onion_messages_optional();
1068         features.set_route_blinding_optional();
1069
1070         let chanmon_cfgs = create_chanmon_cfgs(6);
1071         let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
1072
1073         *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
1074
1075         let node_chanmgrs = create_node_chanmgrs(
1076                 6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
1077         );
1078         let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1079
1080         create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
1081         create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
1082         create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
1083         create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
1084         create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
1085         create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
1086         create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
1087
1088         let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
1089         let alice_id = alice.node.get_our_node_id();
1090         let bob_id = bob.node.get_our_node_id();
1091         let charlie_id = charlie.node.get_our_node_id();
1092         let david_id = david.node.get_our_node_id();
1093
1094         disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
1095         disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
1096
1097         let absolute_expiry = Duration::from_secs(u64::MAX);
1098         let payment_id = PaymentId([1; 32]);
1099         let refund = david.node
1100                 .create_refund_builder(
1101                         "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
1102                 )
1103                 .unwrap()
1104                 .build().unwrap();
1105         expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
1106
1107         // Alice sends the first invoice
1108         alice.node.request_refund_payment(&refund).unwrap();
1109
1110         connect_peers(alice, charlie);
1111
1112         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1113         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1114
1115         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1116         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1117
1118         // David pays the first invoice
1119         let payment_context = PaymentContext::Bolt12Refund(Bolt12RefundContext {});
1120         let invoice1 = extract_invoice(david, &onion_message);
1121
1122         route_bolt12_payment(david, &[charlie, bob, alice], &invoice1);
1123         expect_recent_payment!(david, RecentPaymentDetails::Pending, payment_id);
1124
1125         claim_bolt12_payment(david, &[charlie, bob, alice], payment_context);
1126         expect_recent_payment!(david, RecentPaymentDetails::Fulfilled, payment_id);
1127
1128         disconnect_peers(alice, &[charlie]);
1129
1130         // Alice sends the second invoice
1131         alice.node.request_refund_payment(&refund).unwrap();
1132
1133         connect_peers(alice, charlie);
1134         connect_peers(david, bob);
1135
1136         let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
1137         charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
1138
1139         let onion_message = charlie.onion_messenger.next_onion_message_for_peer(david_id).unwrap();
1140         david.onion_messenger.handle_onion_message(&charlie_id, &onion_message);
1141
1142         let invoice2 = extract_invoice(david, &onion_message);
1143         assert_eq!(invoice1.payer_metadata(), invoice2.payer_metadata());
1144
1145         // David sends an error instead of paying the second invoice
1146         let onion_message = david.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
1147         bob.onion_messenger.handle_onion_message(&david_id, &onion_message);
1148
1149         let onion_message = bob.onion_messenger.next_onion_message_for_peer(alice_id).unwrap();
1150         alice.onion_messenger.handle_onion_message(&bob_id, &onion_message);
1151
1152         let invoice_error = extract_invoice_error(alice, &onion_message);
1153         assert_eq!(invoice_error, InvoiceError::from_string("DuplicateInvoice".to_string()));
1154 }