Generalize BlindedPath::introduction_node_id field
[rust-lightning] / lightning / src / ln / offers_tests.rs
index 54dc5e4a59817c79415fc0963cf67207645822e0..4c8c1ecba038568d1fc690b8a18f1adfce0e6d56 100644 (file)
@@ -40,8 +40,9 @@
 //! Nodes without channels are disconnected and connected as needed to ensure that deterministic
 //! blinded paths are used.
 
+use bitcoin::network::constants::Network;
 use core::time::Duration;
-use crate::blinded_path::BlindedPath;
+use crate::blinded_path::{BlindedPath, IntroductionNode};
 use crate::events::{Event, MessageSendEventsProvider, PaymentPurpose};
 use crate::ln::channelmanager::{PaymentId, RecentPaymentDetails, Retry, self};
 use crate::ln::functional_test_utils::*;
@@ -145,9 +146,9 @@ fn route_bolt12_payment<'a, 'b, 'c>(
        // invoice contains the payment_hash but it was encrypted inside an onion message.
        let amount_msats = invoice.amount_msats();
        let payment_hash = invoice.payment_hash();
-       do_pass_along_path(
-               node, path, amount_msats, payment_hash, None, ev, false, false, None, false
-       );
+       let args = PassAlongPathArgs::new(node, path, amount_msats, payment_hash, ev)
+               .without_clearing_recipient_events();
+       do_pass_along_path(args);
 }
 
 fn claim_bolt12_payment<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, path: &[&Node<'a, 'b, 'c>]) {
@@ -250,7 +251,7 @@ fn prefers_non_tor_nodes_in_blinded_paths() {
        disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
 
        let tor = SocketAddress::OnionV2([255, 254, 253, 252, 251, 250, 249, 248, 247, 246, 38, 7]);
-       announce_node_address(charlie, &[alice, bob, david, &nodes[4], &nodes[5]], tor);
+       announce_node_address(charlie, &[alice, bob, david, &nodes[4], &nodes[5]], tor.clone());
 
        let offer = bob.node
                .create_offer_builder("coffee".to_string()).unwrap()
@@ -259,7 +260,72 @@ fn prefers_non_tor_nodes_in_blinded_paths() {
        assert_ne!(offer.signing_pubkey(), bob_id);
        assert!(!offer.paths().is_empty());
        for path in offer.paths() {
-               assert_ne!(path.introduction_node_id, charlie_id);
+               assert_ne!(path.introduction_node, IntroductionNode::NodeId(bob_id));
+               assert_ne!(path.introduction_node, IntroductionNode::NodeId(charlie_id));
+       }
+
+       // Use a one-hop blinded path when Bob is announced and all his peers are Tor-only.
+       announce_node_address(&nodes[4], &[alice, bob, charlie, david, &nodes[5]], tor.clone());
+       announce_node_address(&nodes[5], &[alice, bob, charlie, david, &nodes[4]], tor.clone());
+
+       let offer = bob.node
+               .create_offer_builder("coffee".to_string()).unwrap()
+               .amount_msats(10_000_000)
+               .build().unwrap();
+       assert_ne!(offer.signing_pubkey(), bob_id);
+       assert!(!offer.paths().is_empty());
+       for path in offer.paths() {
+               assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
+       }
+}
+
+/// Checks that blinded paths prefer an introduction node that is the most connected.
+#[test]
+fn prefers_more_connected_nodes_in_blinded_paths() {
+       let mut accept_forward_cfg = test_default_channel_config();
+       accept_forward_cfg.accept_forwards_to_priv_channels = true;
+
+       let mut features = channelmanager::provided_init_features(&accept_forward_cfg);
+       features.set_onion_messages_optional();
+       features.set_route_blinding_optional();
+
+       let chanmon_cfgs = create_chanmon_cfgs(6);
+       let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
+
+       *node_cfgs[1].override_init_features.borrow_mut() = Some(features);
+
+       let node_chanmgrs = create_node_chanmgrs(
+               6, &node_cfgs, &[None, Some(accept_forward_cfg), None, None, None, None]
+       );
+       let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
+
+       create_unannounced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
+       create_unannounced_chan_between_nodes_with_value(&nodes, 2, 3, 10_000_000, 1_000_000_000);
+       create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 10_000_000, 1_000_000_000);
+       create_announced_chan_between_nodes_with_value(&nodes, 1, 4, 10_000_000, 1_000_000_000);
+       create_announced_chan_between_nodes_with_value(&nodes, 1, 5, 10_000_000, 1_000_000_000);
+       create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 10_000_000, 1_000_000_000);
+       create_announced_chan_between_nodes_with_value(&nodes, 2, 5, 10_000_000, 1_000_000_000);
+
+       // Add extra channels so that more than one of Bob's peers have MIN_PEER_CHANNELS and one has
+       // more than the others.
+       create_announced_chan_between_nodes_with_value(&nodes, 0, 4, 10_000_000, 1_000_000_000);
+       create_announced_chan_between_nodes_with_value(&nodes, 3, 4, 10_000_000, 1_000_000_000);
+
+       let (alice, bob, charlie, david) = (&nodes[0], &nodes[1], &nodes[2], &nodes[3]);
+       let bob_id = bob.node.get_our_node_id();
+
+       disconnect_peers(alice, &[charlie, david, &nodes[4], &nodes[5]]);
+       disconnect_peers(david, &[bob, &nodes[4], &nodes[5]]);
+
+       let offer = bob.node
+               .create_offer_builder("coffee".to_string()).unwrap()
+               .amount_msats(10_000_000)
+               .build().unwrap();
+       assert_ne!(offer.signing_pubkey(), bob_id);
+       assert!(!offer.paths().is_empty());
+       for path in offer.paths() {
+               assert_eq!(path.introduction_node, IntroductionNode::NodeId(nodes[4].node.get_our_node_id()));
        }
 }
 
@@ -308,7 +374,7 @@ fn creates_and_pays_for_offer_using_two_hop_blinded_path() {
        assert_ne!(offer.signing_pubkey(), alice_id);
        assert!(!offer.paths().is_empty());
        for path in offer.paths() {
-               assert_eq!(path.introduction_node_id, bob_id);
+               assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
        }
 
        let payment_id = PaymentId([1; 32]);
@@ -329,7 +395,7 @@ fn creates_and_pays_for_offer_using_two_hop_blinded_path() {
        let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message);
        assert_eq!(invoice_request.amount_msats(), None);
        assert_ne!(invoice_request.payer_id(), david_id);
-       assert_eq!(reply_path.unwrap().introduction_node_id, charlie_id);
+       assert_eq!(reply_path.unwrap().introduction_node, IntroductionNode::NodeId(charlie_id));
 
        let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap();
        charlie.onion_messenger.handle_onion_message(&alice_id, &onion_message);
@@ -342,7 +408,7 @@ fn creates_and_pays_for_offer_using_two_hop_blinded_path() {
        assert_ne!(invoice.signing_pubkey(), alice_id);
        assert!(!invoice.payment_paths().is_empty());
        for (_, path) in invoice.payment_paths() {
-               assert_eq!(path.introduction_node_id, bob_id);
+               assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
        }
 
        route_bolt12_payment(david, &[charlie, bob, alice], &invoice);
@@ -403,7 +469,7 @@ fn creates_and_pays_for_refund_using_two_hop_blinded_path() {
        assert_ne!(refund.payer_id(), david_id);
        assert!(!refund.paths().is_empty());
        for path in refund.paths() {
-               assert_eq!(path.introduction_node_id, charlie_id);
+               assert_eq!(path.introduction_node, IntroductionNode::NodeId(charlie_id));
        }
        expect_recent_payment!(david, RecentPaymentDetails::AwaitingInvoice, payment_id);
 
@@ -422,7 +488,7 @@ fn creates_and_pays_for_refund_using_two_hop_blinded_path() {
        assert_ne!(invoice.signing_pubkey(), alice_id);
        assert!(!invoice.payment_paths().is_empty());
        for (_, path) in invoice.payment_paths() {
-               assert_eq!(path.introduction_node_id, bob_id);
+               assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
        }
 
        route_bolt12_payment(david, &[charlie, bob, alice], &invoice);
@@ -456,7 +522,7 @@ fn creates_and_pays_for_offer_using_one_hop_blinded_path() {
        assert_ne!(offer.signing_pubkey(), alice_id);
        assert!(!offer.paths().is_empty());
        for path in offer.paths() {
-               assert_eq!(path.introduction_node_id, alice_id);
+               assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
        }
 
        let payment_id = PaymentId([1; 32]);
@@ -469,7 +535,7 @@ fn creates_and_pays_for_offer_using_one_hop_blinded_path() {
        let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message);
        assert_eq!(invoice_request.amount_msats(), None);
        assert_ne!(invoice_request.payer_id(), bob_id);
-       assert_eq!(reply_path.unwrap().introduction_node_id, bob_id);
+       assert_eq!(reply_path.unwrap().introduction_node, IntroductionNode::NodeId(bob_id));
 
        let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap();
        bob.onion_messenger.handle_onion_message(&alice_id, &onion_message);
@@ -479,7 +545,7 @@ fn creates_and_pays_for_offer_using_one_hop_blinded_path() {
        assert_ne!(invoice.signing_pubkey(), alice_id);
        assert!(!invoice.payment_paths().is_empty());
        for (_, path) in invoice.payment_paths() {
-               assert_eq!(path.introduction_node_id, alice_id);
+               assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
        }
 
        route_bolt12_payment(bob, &[alice], &invoice);
@@ -519,7 +585,7 @@ fn creates_and_pays_for_refund_using_one_hop_blinded_path() {
        assert_ne!(refund.payer_id(), bob_id);
        assert!(!refund.paths().is_empty());
        for path in refund.paths() {
-               assert_eq!(path.introduction_node_id, bob_id);
+               assert_eq!(path.introduction_node, IntroductionNode::NodeId(bob_id));
        }
        expect_recent_payment!(bob, RecentPaymentDetails::AwaitingInvoice, payment_id);
 
@@ -533,7 +599,7 @@ fn creates_and_pays_for_refund_using_one_hop_blinded_path() {
        assert_ne!(invoice.signing_pubkey(), alice_id);
        assert!(!invoice.payment_paths().is_empty());
        for (_, path) in invoice.payment_paths() {
-               assert_eq!(path.introduction_node_id, alice_id);
+               assert_eq!(path.introduction_node, IntroductionNode::NodeId(alice_id));
        }
 
        route_bolt12_payment(bob, &[alice], &invoice);
@@ -667,6 +733,61 @@ fn fails_creating_refund_without_blinded_paths() {
        assert!(nodes[0].node.list_recent_payments().is_empty());
 }
 
+/// Fails creating an invoice request when the offer contains an unsupported chain.
+#[test]
+fn fails_creating_invoice_request_for_unsupported_chain() {
+       let chanmon_cfgs = create_chanmon_cfgs(2);
+       let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
+       let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
+       let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+       create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
+
+       let alice = &nodes[0];
+       let bob = &nodes[1];
+
+       let offer = alice.node
+               .create_offer_builder("coffee".to_string()).unwrap()
+               .clear_chains()
+               .chain(Network::Signet)
+               .build().unwrap();
+
+       let payment_id = PaymentId([1; 32]);
+       match bob.node.pay_for_offer(&offer, None, None, None, payment_id, Retry::Attempts(0), None) {
+               Ok(_) => panic!("Expected error"),
+               Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedChain),
+       }
+}
+
+/// Fails requesting a payment when the refund contains an unsupported chain.
+#[test]
+fn fails_sending_invoice_with_unsupported_chain_for_refund() {
+       let chanmon_cfgs = create_chanmon_cfgs(2);
+       let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
+       let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
+       let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+       create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 10_000_000, 1_000_000_000);
+
+       let alice = &nodes[0];
+       let bob = &nodes[1];
+
+       let absolute_expiry = Duration::from_secs(u64::MAX);
+       let payment_id = PaymentId([1; 32]);
+       let refund = bob.node
+               .create_refund_builder(
+                       "refund".to_string(), 10_000_000, absolute_expiry, payment_id, Retry::Attempts(0), None
+               )
+               .unwrap()
+               .chain(Network::Signet)
+               .build().unwrap();
+
+       match alice.node.request_refund_payment(&refund) {
+               Ok(_) => panic!("Expected error"),
+               Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedChain),
+       }
+}
+
 /// Fails creating an invoice request when a blinded reply path cannot be created without exposing
 /// the node's id.
 #[test]