use crate::ln::msgs::DecodeError;
use crate::offers::invoice::BlindedPayInfo;
+use crate::routing::gossip::{NodeId, ReadOnlyNetworkGraph};
use crate::sign::EntropySource;
use crate::util::ser::{Readable, Writeable, Writer};
}
/// Create a one-hop blinded path for a payment.
- pub fn one_hop_for_payment<ES: EntropySource, T: secp256k1::Signing + secp256k1::Verification>(
- payee_node_id: PublicKey, payee_tlvs: payment::ReceiveTlvs, entropy_source: &ES,
- secp_ctx: &Secp256k1<T>
+ pub fn one_hop_for_payment<ES: EntropySource + ?Sized, T: secp256k1::Signing + secp256k1::Verification>(
+ payee_node_id: PublicKey, payee_tlvs: payment::ReceiveTlvs, min_final_cltv_expiry_delta: u16,
+ entropy_source: &ES, secp_ctx: &Secp256k1<T>
) -> Result<(BlindedPayInfo, Self), ()> {
// This value is not considered in pathfinding for 1-hop blinded paths, because it's intended to
// be in relation to a specific channel.
let htlc_maximum_msat = u64::max_value();
Self::new_for_payment(
- &[], payee_node_id, payee_tlvs, htlc_maximum_msat, entropy_source, secp_ctx
+ &[], payee_node_id, payee_tlvs, htlc_maximum_msat, min_final_cltv_expiry_delta,
+ entropy_source, secp_ctx
)
}
///
/// [`ForwardTlvs`]: crate::blinded_path::payment::ForwardTlvs
// TODO: make all payloads the same size with padding + add dummy hops
- pub(crate) fn new_for_payment<ES: EntropySource, T: secp256k1::Signing + secp256k1::Verification>(
+ pub fn new_for_payment<ES: EntropySource + ?Sized, T: secp256k1::Signing + secp256k1::Verification>(
intermediate_nodes: &[payment::ForwardNode], payee_node_id: PublicKey,
- payee_tlvs: payment::ReceiveTlvs, htlc_maximum_msat: u64, entropy_source: &ES,
- secp_ctx: &Secp256k1<T>
+ payee_tlvs: payment::ReceiveTlvs, htlc_maximum_msat: u64, min_final_cltv_expiry_delta: u16,
+ entropy_source: &ES, secp_ctx: &Secp256k1<T>
) -> Result<(BlindedPayInfo, Self), ()> {
let blinding_secret_bytes = entropy_source.get_secure_random_bytes();
let blinding_secret = SecretKey::from_slice(&blinding_secret_bytes[..]).expect("RNG is busted");
- let blinded_payinfo = payment::compute_payinfo(intermediate_nodes, &payee_tlvs, htlc_maximum_msat)?;
+ let blinded_payinfo = payment::compute_payinfo(
+ intermediate_nodes, &payee_tlvs, htlc_maximum_msat, min_final_cltv_expiry_delta
+ )?;
Ok((blinded_payinfo, BlindedPath {
introduction_node_id: intermediate_nodes.first().map_or(payee_node_id, |n| n.node_id),
blinding_point: PublicKey::from_secret_key(secp_ctx, &blinding_secret),
).map_err(|_| ())?,
}))
}
+
+ /// Returns the introduction [`NodeId`] of the blinded path.
+ pub fn public_introduction_node_id<'a>(
+ &self, network_graph: &'a ReadOnlyNetworkGraph
+ ) -> Option<&'a NodeId> {
+ let node_id = NodeId::from_pubkey(&self.introduction_node_id);
+ network_graph.nodes().get_key_value(&node_id).map(|(key, _)| key)
+ }
}
impl Writeable for BlindedPath {