Refactor unified_qr.rs to use bitcoin-payment-instructions

Cargo.toml

@@ -102,6 +102,8 @@ log = { version = "0.4.22", default-features = false, features = ["std"]}
 
 vss-client = "0.3"
 prost = { version = "0.11.6", default-features = false}
+#bitcoin-payment-instructions = { version = "0.5" }
+bitcoin-payment-instructions = { git = "https://github.com/chuksys/bitcoin-payment-instructions", branch = "bump-lightning" }
 
 [target.'cfg(windows)'.dependencies]
 winapi = { version = "0.3", features = ["winbase"] }

bindings/ldk_node.udl

@@ -128,7 +128,7 @@ interface Node {
 	Bolt12Payment bolt12_payment();
 	SpontaneousPayment spontaneous_payment();
 	OnchainPayment onchain_payment();
-	UnifiedQrPayment unified_qr_payment();
+	UnifiedPayment unified_payment();
 	LSPS1Liquidity lsps1_liquidity();
 	[Throws=NodeError]
 	void connect(PublicKey node_id, SocketAddress address, boolean persist);
@@ -201,7 +201,7 @@ interface Bolt12Payment {
 	[Throws=NodeError]
 	PaymentId send([ByRef]Offer offer, u64? quantity, string? payer_note);
 	[Throws=NodeError]
-	PaymentId send_using_amount([ByRef]Offer offer, u64 amount_msat, u64? quantity, string? payer_note);
+	PaymentId send_using_amount([ByRef]Offer offer, u64 amount_msat, u64? quantity, string? payer_note, HumanReadableName? hrn);
 	[Throws=NodeError]
 	Offer receive(u64 amount_msat, [ByRef]string description, u32? expiry_secs, u64? quantity);
 	[Throws=NodeError]
@@ -250,11 +250,11 @@ interface FeeRate {
 	u64 to_sat_per_vb_ceil();
 };
 
-interface UnifiedQrPayment {
+interface UnifiedPayment {
 	[Throws=NodeError]
 	string receive(u64 amount_sats, [ByRef]string message, u32 expiry_sec);
-	[Throws=NodeError]
-	QrPaymentResult send([ByRef]string uri_str);
+	[Throws=NodeError, Async]
+	UnifiedPaymentResult send([ByRef]string uri_str, u64? amount_msat);
 };
 
 interface LSPS1Liquidity {
@@ -320,6 +320,7 @@ enum NodeError {
 	"LiquidityFeeTooHigh",
 	"InvalidBlindedPaths",
 	"AsyncPaymentServicesDisabled",
+	"HrnParsingFailed",
 };
 
 dictionary NodeStatus {
@@ -428,7 +429,7 @@ interface PaymentKind {
 };
 
 [Enum]
-interface QrPaymentResult {
+interface UnifiedPaymentResult {
 	Onchain(Txid txid);
 	Bolt11(PaymentId payment_id);
 	Bolt12(PaymentId payment_id);
@@ -775,6 +776,13 @@ interface Offer {
 	PublicKey? issuer_signing_pubkey();
 };
 
+interface HumanReadableName {
+	[Throws=NodeError, Name=from_encoded]
+	constructor([ByRef] string encoded);
+	string user();
+	string domain();
+};
+
 [Traits=(Debug, Display, Eq)]
 interface Refund {
 	[Throws=NodeError, Name=from_str]

src/builder.rs

@@ -80,6 +80,8 @@ use std::sync::{Arc, Mutex, Once, RwLock};
 use std::time::SystemTime;
 use vss_client::headers::{FixedHeaders, LnurlAuthToJwtProvider, VssHeaderProvider};
 
+use bitcoin_payment_instructions::onion_message_resolver::LDKOnionMessageDNSSECHrnResolver;
+
 const VSS_HARDENED_CHILD_INDEX: u32 = 877;
 const VSS_LNURL_AUTH_HARDENED_CHILD_INDEX: u32 = 138;
 const LSPS_HARDENED_CHILD_INDEX: u32 = 577;
@@ -1451,6 +1453,8 @@ fn build_with_store_internal(
 		})?;
 	}
 
+	let hrn_resolver = Arc::new(LDKOnionMessageDNSSECHrnResolver::new(Arc::clone(&network_graph)));
+
 	// Initialize the PeerManager
 	let onion_messenger: Arc<OnionMessenger> = Arc::new(OnionMessenger::new(
 		Arc::clone(&keys_manager),
@@ -1460,7 +1464,7 @@ fn build_with_store_internal(
 		message_router,
 		Arc::clone(&channel_manager),
 		Arc::clone(&channel_manager),
-		IgnoringMessageHandler {},
+		Arc::clone(&hrn_resolver),
 		IgnoringMessageHandler {},
 	));
 	let ephemeral_bytes: [u8; 32] = keys_manager.get_secure_random_bytes();
@@ -1588,6 +1592,12 @@ fn build_with_store_internal(
 		Arc::clone(&keys_manager),
 	));
 
+	let peer_manager_clone = Arc::clone(&peer_manager);
+
+	hrn_resolver.register_post_queue_action(Box::new(move || {
+		peer_manager_clone.process_events();
+	}));
+
 	liquidity_source.as_ref().map(|l| l.set_peer_manager(Arc::clone(&peer_manager)));
 
 	gossip_source.set_gossip_verifier(
@@ -1681,6 +1691,7 @@ fn build_with_store_internal(
 		is_running,
 		is_listening,
 		node_metrics,
+		hrn_resolver,
 	})
 }
 

src/error.rs

@@ -124,6 +124,8 @@ pub enum Error {
 	InvalidBlindedPaths,
 	/// Asynchronous payment services are disabled.
 	AsyncPaymentServicesDisabled,
+	/// Parsing a Human-Readable Name has failed.
+	HrnParsingFailed,
 }
 
 impl fmt::Display for Error {
@@ -201,6 +203,9 @@ impl fmt::Display for Error {
 			Self::AsyncPaymentServicesDisabled => {
 				write!(f, "Asynchronous payment services are disabled.")
 			},
+			Self::HrnParsingFailed => {
+				write!(f, "Failed to parse a human-readable name.")
+			},
 		}
 	}
 }

src/ffi/types.rs

@@ -20,12 +20,13 @@ pub use crate::logger::{LogLevel, LogRecord, LogWriter};
 pub use crate::payment::store::{
 	ConfirmationStatus, LSPFeeLimits, PaymentDirection, PaymentKind, PaymentStatus,
 };
-pub use crate::payment::QrPaymentResult;
+pub use crate::payment::UnifiedPaymentResult;
 
 pub use lightning::chain::channelmonitor::BalanceSource;
 pub use lightning::events::{ClosureReason, PaymentFailureReason};
 pub use lightning::ln::types::ChannelId;
 pub use lightning::offers::offer::OfferId;
+pub use lightning::onion_message::dns_resolution::HumanReadableName as LdkHumanReadableName;
 pub use lightning::routing::gossip::{NodeAlias, NodeId, RoutingFees};
 pub use lightning::routing::router::RouteParametersConfig;
 pub use lightning_types::string::UntrustedString;
@@ -278,6 +279,58 @@ impl std::fmt::Display for Offer {
 	}
 }
 
+pub struct HumanReadableName {
+	pub(crate) inner: LdkHumanReadableName,
+}
+
+impl HumanReadableName {
+	pub fn into_inner(&self) -> LdkHumanReadableName {
+		self.inner.clone()
+	}
+
+	pub fn from_encoded(encoded: &str) -> Result<Self, Error> {
+		let hrn = match LdkHumanReadableName::from_encoded(encoded) {
+			Ok(hrn) => Ok(hrn),
+			Err(_) => Err(Error::HrnParsingFailed),
+		}?;
+
+		Ok(Self { inner: hrn })
+	}
+
+	pub fn user(&self) -> String {
+		self.inner.user().to_string()
+	}
+
+	pub fn domain(&self) -> String {
+		self.inner.domain().to_string()
+	}
+}
+
+impl From<LdkHumanReadableName> for HumanReadableName {
+	fn from(ldk_hrn: LdkHumanReadableName) -> Self {
+		HumanReadableName { inner: ldk_hrn }
+	}
+}
+
+impl From<HumanReadableName> for LdkHumanReadableName {
+	fn from(wrapper: HumanReadableName) -> Self {
+		wrapper.into_inner()
+	}
+}
+
+impl Deref for HumanReadableName {
+	type Target = LdkHumanReadableName;
+	fn deref(&self) -> &Self::Target {
+		&self.inner
+	}
+}
+
+impl AsRef<LdkHumanReadableName> for HumanReadableName {
+	fn as_ref(&self) -> &LdkHumanReadableName {
+		self.deref()
+	}
+}
+
 /// A `Refund` is a request to send an [`Bolt12Invoice`] without a preceding [`Offer`].
 ///
 /// Typically, after an invoice is paid, the recipient may publish a refund allowing the sender to

src/lib.rs

@@ -139,13 +139,14 @@ use liquidity::{LSPS1Liquidity, LiquiditySource};
 use payment::asynchronous::static_invoice_store::StaticInvoiceStore;
 use payment::{
 	Bolt11Payment, Bolt12Payment, OnchainPayment, PaymentDetails, SpontaneousPayment,
-	UnifiedQrPayment,
+	UnifiedPayment,
 };
 use peer_store::{PeerInfo, PeerStore};
 use runtime::Runtime;
 use types::{
 	Broadcaster, BumpTransactionEventHandler, ChainMonitor, ChannelManager, DynStore, Graph,
-	KeysManager, OnionMessenger, PaymentStore, PeerManager, Router, Scorer, Sweeper, Wallet,
+	HRNResolver, KeysManager, OnionMessenger, PaymentStore, PeerManager, Router, Scorer, Sweeper,
+	Wallet,
 };
 pub use types::{ChannelDetails, CustomTlvRecord, PeerDetails, UserChannelId};
 
@@ -205,6 +206,7 @@ pub struct Node {
 	is_running: Arc<RwLock<bool>>,
 	is_listening: Arc<AtomicBool>,
 	node_metrics: Arc<RwLock<NodeMetrics>>,
+	hrn_resolver: Arc<HRNResolver>,
 }
 
 impl Node {
@@ -899,34 +901,42 @@ impl Node {
 	/// Returns a payment handler allowing to create [BIP 21] URIs with an on-chain, [BOLT 11],
 	/// and [BOLT 12] payment options.
 	///
+	/// This handler allows you to send payments to these URIs as well as [BIP 353] HRNs.
+	///
 	/// [BOLT 11]: https://github.com/lightning/bolts/blob/master/11-payment-encoding.md
 	/// [BOLT 12]: https://github.com/lightning/bolts/blob/master/12-offer-encoding.md
 	/// [BIP 21]: https://github.com/bitcoin/bips/blob/master/bip-0021.mediawiki
+	/// [BIP 353]: https://github.com/bitcoin/bips/blob/master/bip-0353.mediawiki
 	#[cfg(not(feature = "uniffi"))]
-	pub fn unified_qr_payment(&self) -> UnifiedQrPayment {
-		UnifiedQrPayment::new(
+	pub fn unified_payment(&self) -> UnifiedPayment {
+		UnifiedPayment::new(
 			self.onchain_payment().into(),
 			self.bolt11_payment().into(),
 			self.bolt12_payment().into(),
 			Arc::clone(&self.config),
 			Arc::clone(&self.logger),
+			Arc::clone(&self.hrn_resolver),
 		)
 	}
 
 	/// Returns a payment handler allowing to create [BIP 21] URIs with an on-chain, [BOLT 11],
 	/// and [BOLT 12] payment options.
 	///
+	/// This handler allows you to send payments to these URIs as well as [BIP 353] HRNs.
+	///
 	/// [BOLT 11]: https://github.com/lightning/bolts/blob/master/11-payment-encoding.md
 	/// [BOLT 12]: https://github.com/lightning/bolts/blob/master/12-offer-encoding.md
 	/// [BIP 21]: https://github.com/bitcoin/bips/blob/master/bip-0021.mediawiki
+	/// [BIP 353]: https://github.com/bitcoin/bips/blob/master/bip-0353.mediawiki
 	#[cfg(feature = "uniffi")]
-	pub fn unified_qr_payment(&self) -> Arc<UnifiedQrPayment> {
-		Arc::new(UnifiedQrPayment::new(
+	pub fn unified_payment(&self) -> Arc<UnifiedPayment> {
+		Arc::new(UnifiedPayment::new(
 			self.onchain_payment(),
 			self.bolt11_payment(),
 			self.bolt12_payment(),
 			Arc::clone(&self.config),
 			Arc::clone(&self.logger),
+			Arc::clone(&self.hrn_resolver),
 		))
 	}
 

src/payment/bolt12.rs

@@ -18,7 +18,7 @@ use crate::types::{ChannelManager, PaymentStore};
 
 use lightning::blinded_path::message::BlindedMessagePath;
 use lightning::ln::channelmanager::{OptionalOfferPaymentParams, PaymentId, Retry};
-use lightning::offers::offer::{Amount, Offer as LdkOffer, Quantity};
+use lightning::offers::offer::{Amount, Offer as LdkOffer, OfferFromHrn, Quantity};
 use lightning::offers::parse::Bolt12SemanticError;
 use lightning::routing::router::RouteParametersConfig;
 
@@ -47,6 +47,11 @@ type Refund = lightning::offers::refund::Refund;
 #[cfg(feature = "uniffi")]
 type Refund = Arc<crate::ffi::Refund>;
 
+#[cfg(not(feature = "uniffi"))]
+type HumanReadableName = lightning::onion_message::dns_resolution::HumanReadableName;
+#[cfg(feature = "uniffi")]
+type HumanReadableName = Arc<crate::ffi::HumanReadableName>;
+
 /// A payment handler allowing to create and pay [BOLT 12] offers and refunds.
 ///
 /// Should be retrieved by calling [`Node::bolt12_payment`].
@@ -184,6 +189,7 @@ impl Bolt12Payment {
 	/// response.
 	pub fn send_using_amount(
 		&self, offer: &Offer, amount_msat: u64, quantity: Option<u64>, payer_note: Option<String>,
+		hrn: Option<HumanReadableName>,
 	) -> Result<PaymentId, Error> {
 		if !*self.is_running.read().unwrap() {
 			return Err(Error::NotRunning);
@@ -218,7 +224,11 @@ impl Bolt12Payment {
 			retry_strategy,
 			route_params_config,
 		};
-		let res = if let Some(quantity) = quantity {
+		let res = if let Some(hrn) = hrn {
+			let hrn = maybe_deref(&hrn);
+			let offer = OfferFromHrn { offer: offer.clone(), hrn: *hrn };
+			self.channel_manager.pay_for_offer_from_hrn(&offer, amount_msat, payment_id, params)
+		} else if let Some(quantity) = quantity {
 			self.channel_manager.pay_for_offer_with_quantity(
 				&offer,
 				Some(amount_msat),

src/payment/mod.rs

@@ -13,7 +13,7 @@ mod bolt12;
 mod onchain;
 mod spontaneous;
 pub(crate) mod store;
-mod unified_qr;
+mod unified;
 
 pub use bolt11::Bolt11Payment;
 pub use bolt12::Bolt12Payment;
@@ -22,4 +22,4 @@ pub use spontaneous::SpontaneousPayment;
 pub use store::{
 	ConfirmationStatus, LSPFeeLimits, PaymentDetails, PaymentDirection, PaymentKind, PaymentStatus,
 };
-pub use unified_qr::{QrPaymentResult, UnifiedQrPayment};
+pub use unified::{UnifiedPayment, UnifiedPaymentResult};