use bitcoin::blockdata::constants::ChainHash;
use bitcoin::network::constants::Network;
use bitcoin::secp256k1::{PublicKey, Secp256k1, self};
-use core::convert::TryFrom;
+use core::hash::{Hash, Hasher};
use core::ops::Deref;
use core::str::FromStr;
use core::time::Duration;
use crate::ln::features::InvoiceRequestFeatures;
use crate::ln::inbound_payment::{ExpandedKey, IV_LEN, Nonce};
use crate::ln::msgs::{DecodeError, MAX_VALUE_MSAT};
-use crate::offers::invoice::{BlindedPayInfo, DerivedSigningPubkey, ExplicitSigningPubkey, InvoiceBuilder};
+use crate::offers::invoice::BlindedPayInfo;
use crate::offers::invoice_request::{InvoiceRequestTlvStream, InvoiceRequestTlvStreamRef};
use crate::offers::offer::{OfferTlvStream, OfferTlvStreamRef};
use crate::offers::parse::{Bech32Encode, Bolt12ParseError, Bolt12SemanticError, ParsedMessage};
use crate::util::ser::{SeekReadable, WithoutLength, Writeable, Writer};
use crate::util::string::PrintableString;
+#[cfg(not(c_bindings))]
+use {
+ crate::offers::invoice::{DerivedSigningPubkey, ExplicitSigningPubkey, InvoiceBuilder},
+};
+#[cfg(c_bindings)]
+use {
+ crate::offers::invoice::{InvoiceWithDerivedSigningPubkeyBuilder, InvoiceWithExplicitSigningPubkeyBuilder},
+};
+
+#[allow(unused_imports)]
use crate::prelude::*;
#[cfg(feature = "std")]
secp_ctx: Option<&'a Secp256k1<T>>,
}
-impl<'a> RefundBuilder<'a, secp256k1::SignOnly> {
+/// Builds a [`Refund`] for the "offer for money" flow.
+///
+/// See [module-level documentation] for usage.
+///
+/// [module-level documentation]: self
+#[cfg(c_bindings)]
+pub struct RefundMaybeWithDerivedMetadataBuilder<'a> {
+ refund: RefundContents,
+ secp_ctx: Option<&'a Secp256k1<secp256k1::All>>,
+}
+
+macro_rules! refund_explicit_metadata_builder_methods { () => {
/// Creates a new builder for a refund using the [`Refund::payer_id`] for the public node id to
/// send to if no [`Refund::paths`] are set. Otherwise, it may be a transient pubkey.
///
secp_ctx: None,
})
}
-}
+} }
-impl<'a, T: secp256k1::Signing> RefundBuilder<'a, T> {
+macro_rules! refund_builder_methods { (
+ $self: ident, $self_type: ty, $return_type: ty, $return_value: expr, $secp_context: ty $(, $self_mut: tt)?
+) => {
/// Similar to [`RefundBuilder::new`] except, if [`RefundBuilder::path`] is called, the payer id
/// is derived from the given [`ExpandedKey`] and nonce. This provides sender privacy by using a
/// different payer id for each refund, assuming a different nonce is used. Otherwise, the
/// [`ExpandedKey`]: crate::ln::inbound_payment::ExpandedKey
pub fn deriving_payer_id<ES: Deref>(
description: String, node_id: PublicKey, expanded_key: &ExpandedKey, entropy_source: ES,
- secp_ctx: &'a Secp256k1<T>, amount_msats: u64, payment_id: PaymentId
+ secp_ctx: &'a Secp256k1<$secp_context>, amount_msats: u64, payment_id: PaymentId
) -> Result<Self, Bolt12SemanticError> where ES::Target: EntropySource {
if amount_msats > MAX_VALUE_MSAT {
return Err(Bolt12SemanticError::InvalidAmount);
/// already passed is valid and can be checked for using [`Refund::is_expired`].
///
/// Successive calls to this method will override the previous setting.
- pub fn absolute_expiry(mut self, absolute_expiry: Duration) -> Self {
- self.refund.absolute_expiry = Some(absolute_expiry);
- self
+ pub fn absolute_expiry($($self_mut)* $self: $self_type, absolute_expiry: Duration) -> $return_type {
+ $self.refund.absolute_expiry = Some(absolute_expiry);
+ $return_value
}
/// Sets the [`Refund::issuer`].
///
/// Successive calls to this method will override the previous setting.
- pub fn issuer(mut self, issuer: String) -> Self {
- self.refund.issuer = Some(issuer);
- self
+ pub fn issuer($($self_mut)* $self: $self_type, issuer: String) -> $return_type {
+ $self.refund.issuer = Some(issuer);
+ $return_value
}
/// Adds a blinded path to [`Refund::paths`]. Must include at least one path if only connected
///
/// Successive calls to this method will add another blinded path. Caller is responsible for not
/// adding duplicate paths.
- pub fn path(mut self, path: BlindedPath) -> Self {
- self.refund.paths.get_or_insert_with(Vec::new).push(path);
- self
+ pub fn path($($self_mut)* $self: $self_type, path: BlindedPath) -> $return_type {
+ $self.refund.paths.get_or_insert_with(Vec::new).push(path);
+ $return_value
}
/// Sets the [`Refund::chain`] of the given [`Network`] for paying an invoice. If not
/// called, [`Network::Bitcoin`] is assumed.
///
/// Successive calls to this method will override the previous setting.
- pub fn chain(self, network: Network) -> Self {
- self.chain_hash(ChainHash::using_genesis_block(network))
+ pub fn chain($self: $self_type, network: Network) -> $return_type {
+ $self.chain_hash(ChainHash::using_genesis_block(network))
}
/// Sets the [`Refund::chain`] of the given [`ChainHash`] for paying an invoice. If not called,
/// [`Network::Bitcoin`] is assumed.
///
/// Successive calls to this method will override the previous setting.
- pub(crate) fn chain_hash(mut self, chain: ChainHash) -> Self {
- self.refund.chain = Some(chain);
- self
+ pub(crate) fn chain_hash($($self_mut)* $self: $self_type, chain: ChainHash) -> $return_type {
+ $self.refund.chain = Some(chain);
+ $return_value
}
/// Sets [`Refund::quantity`] of items. This is purely for informational purposes. It is useful
/// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
/// [`InvoiceRequest::quantity`]: crate::offers::invoice_request::InvoiceRequest::quantity
/// [`Offer`]: crate::offers::offer::Offer
- pub fn quantity(mut self, quantity: u64) -> Self {
- self.refund.quantity = Some(quantity);
- self
+ pub fn quantity($($self_mut)* $self: $self_type, quantity: u64) -> $return_type {
+ $self.refund.quantity = Some(quantity);
+ $return_value
}
/// Sets the [`Refund::payer_note`].
///
/// Successive calls to this method will override the previous setting.
- pub fn payer_note(mut self, payer_note: String) -> Self {
- self.refund.payer_note = Some(payer_note);
- self
+ pub fn payer_note($($self_mut)* $self: $self_type, payer_note: String) -> $return_type {
+ $self.refund.payer_note = Some(payer_note);
+ $return_value
}
/// Builds a [`Refund`] after checking for valid semantics.
- pub fn build(mut self) -> Result<Refund, Bolt12SemanticError> {
- if self.refund.chain() == self.refund.implied_chain() {
- self.refund.chain = None;
+ pub fn build($($self_mut)* $self: $self_type) -> Result<Refund, Bolt12SemanticError> {
+ if $self.refund.chain() == $self.refund.implied_chain() {
+ $self.refund.chain = None;
}
// Create the metadata for stateless verification of a Bolt12Invoice.
- if self.refund.payer.0.has_derivation_material() {
- let mut metadata = core::mem::take(&mut self.refund.payer.0);
+ if $self.refund.payer.0.has_derivation_material() {
+ let mut metadata = core::mem::take(&mut $self.refund.payer.0);
- if self.refund.paths.is_none() {
+ if $self.refund.paths.is_none() {
metadata = metadata.without_keys();
}
- let mut tlv_stream = self.refund.as_tlv_stream();
+ let mut tlv_stream = $self.refund.as_tlv_stream();
tlv_stream.0.metadata = None;
if metadata.derives_payer_keys() {
tlv_stream.2.payer_id = None;
}
- let (derived_metadata, keys) = metadata.derive_from(tlv_stream, self.secp_ctx);
+ let (derived_metadata, keys) = metadata.derive_from(tlv_stream, $self.secp_ctx);
metadata = derived_metadata;
if let Some(keys) = keys {
- self.refund.payer_id = keys.public_key();
+ $self.refund.payer_id = keys.public_key();
}
- self.refund.payer.0 = metadata;
+ $self.refund.payer.0 = metadata;
}
let mut bytes = Vec::new();
- self.refund.write(&mut bytes).unwrap();
+ $self.refund.write(&mut bytes).unwrap();
+
+ Ok(Refund {
+ bytes,
+ #[cfg(not(c_bindings))]
+ contents: $self.refund,
+ #[cfg(c_bindings)]
+ contents: $self.refund.clone(),
+ })
+ }
+} }
+
+#[cfg(test)]
+macro_rules! refund_builder_test_methods { (
+ $self: ident, $self_type: ty, $return_type: ty, $return_value: expr $(, $self_mut: tt)?
+) => {
+ #[cfg_attr(c_bindings, allow(dead_code))]
+ pub(crate) fn clear_paths($($self_mut)* $self: $self_type) -> $return_type {
+ $self.refund.paths = None;
+ $return_value
+ }
- Ok(Refund { bytes, contents: self.refund })
+ #[cfg_attr(c_bindings, allow(dead_code))]
+ fn features_unchecked($($self_mut)* $self: $self_type, features: InvoiceRequestFeatures) -> $return_type {
+ $self.refund.features = features;
+ $return_value
}
+} }
+
+impl<'a> RefundBuilder<'a, secp256k1::SignOnly> {
+ refund_explicit_metadata_builder_methods!();
}
-#[cfg(test)]
impl<'a, T: secp256k1::Signing> RefundBuilder<'a, T> {
- fn features_unchecked(mut self, features: InvoiceRequestFeatures) -> Self {
- self.refund.features = features;
- self
+ refund_builder_methods!(self, Self, Self, self, T, mut);
+
+ #[cfg(test)]
+ refund_builder_test_methods!(self, Self, Self, self, mut);
+}
+
+#[cfg(all(c_bindings, not(test)))]
+impl<'a> RefundMaybeWithDerivedMetadataBuilder<'a> {
+ refund_explicit_metadata_builder_methods!();
+ refund_builder_methods!(self, &mut Self, (), (), secp256k1::All);
+}
+
+#[cfg(all(c_bindings, test))]
+impl<'a> RefundMaybeWithDerivedMetadataBuilder<'a> {
+ refund_explicit_metadata_builder_methods!();
+ refund_builder_methods!(self, &mut Self, &mut Self, self, secp256k1::All);
+ refund_builder_test_methods!(self, &mut Self, &mut Self, self);
+}
+
+#[cfg(c_bindings)]
+impl<'a> From<RefundBuilder<'a, secp256k1::All>>
+for RefundMaybeWithDerivedMetadataBuilder<'a> {
+ fn from(builder: RefundBuilder<'a, secp256k1::All>) -> Self {
+ let RefundBuilder { refund, secp_ctx } = builder;
+
+ Self { refund, secp_ctx }
}
}
/// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
/// [`Offer`]: crate::offers::offer::Offer
#[derive(Clone, Debug)]
-#[cfg_attr(test, derive(PartialEq))]
pub struct Refund {
pub(super) bytes: Vec<u8>,
pub(super) contents: RefundContents,
pub fn payer_note(&self) -> Option<PrintableString> {
self.contents.payer_note()
}
+}
+macro_rules! respond_with_explicit_signing_pubkey_methods { ($self: ident, $builder: ty) => {
/// Creates an [`InvoiceBuilder`] for the refund with the given required fields and using the
/// [`Duration`] since [`std::time::SystemTime::UNIX_EPOCH`] as the creation time.
///
/// [`Duration`]: core::time::Duration
#[cfg(feature = "std")]
pub fn respond_with(
- &self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
signing_pubkey: PublicKey,
- ) -> Result<InvoiceBuilder<ExplicitSigningPubkey>, Bolt12SemanticError> {
+ ) -> Result<$builder, Bolt12SemanticError> {
let created_at = std::time::SystemTime::now()
.duration_since(std::time::SystemTime::UNIX_EPOCH)
.expect("SystemTime::now() should come after SystemTime::UNIX_EPOCH");
- self.respond_with_no_std(payment_paths, payment_hash, signing_pubkey, created_at)
+ $self.respond_with_no_std(payment_paths, payment_hash, signing_pubkey, created_at)
}
/// Creates an [`InvoiceBuilder`] for the refund with the given required fields.
///
/// [`Bolt12Invoice::created_at`]: crate::offers::invoice::Bolt12Invoice::created_at
pub fn respond_with_no_std(
- &self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
signing_pubkey: PublicKey, created_at: Duration
- ) -> Result<InvoiceBuilder<ExplicitSigningPubkey>, Bolt12SemanticError> {
- if self.features().requires_unknown_bits() {
+ ) -> Result<$builder, Bolt12SemanticError> {
+ if $self.features().requires_unknown_bits() {
return Err(Bolt12SemanticError::UnknownRequiredFeatures);
}
- InvoiceBuilder::for_refund(self, payment_paths, created_at, payment_hash, signing_pubkey)
+ <$builder>::for_refund($self, payment_paths, created_at, payment_hash, signing_pubkey)
}
+} }
+macro_rules! respond_with_derived_signing_pubkey_methods { ($self: ident, $builder: ty) => {
/// Creates an [`InvoiceBuilder`] for the refund using the given required fields and that uses
/// derived signing keys to sign the [`Bolt12Invoice`].
///
/// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
#[cfg(feature = "std")]
pub fn respond_using_derived_keys<ES: Deref>(
- &self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
expanded_key: &ExpandedKey, entropy_source: ES
- ) -> Result<InvoiceBuilder<DerivedSigningPubkey>, Bolt12SemanticError>
+ ) -> Result<$builder, Bolt12SemanticError>
where
ES::Target: EntropySource,
{
.duration_since(std::time::SystemTime::UNIX_EPOCH)
.expect("SystemTime::now() should come after SystemTime::UNIX_EPOCH");
- self.respond_using_derived_keys_no_std(
+ $self.respond_using_derived_keys_no_std(
payment_paths, payment_hash, created_at, expanded_key, entropy_source
)
}
///
/// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
pub fn respond_using_derived_keys_no_std<ES: Deref>(
- &self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
created_at: core::time::Duration, expanded_key: &ExpandedKey, entropy_source: ES
- ) -> Result<InvoiceBuilder<DerivedSigningPubkey>, Bolt12SemanticError>
+ ) -> Result<$builder, Bolt12SemanticError>
where
ES::Target: EntropySource,
{
- if self.features().requires_unknown_bits() {
+ if $self.features().requires_unknown_bits() {
return Err(Bolt12SemanticError::UnknownRequiredFeatures);
}
let nonce = Nonce::from_entropy_source(entropy_source);
let keys = signer::derive_keys(nonce, expanded_key);
- InvoiceBuilder::for_refund_using_keys(self, payment_paths, created_at, payment_hash, keys)
+ <$builder>::for_refund_using_keys($self, payment_paths, created_at, payment_hash, keys)
}
+} }
- #[cfg(test)]
+#[cfg(not(c_bindings))]
+impl Refund {
+ respond_with_explicit_signing_pubkey_methods!(self, InvoiceBuilder<ExplicitSigningPubkey>);
+ respond_with_derived_signing_pubkey_methods!(self, InvoiceBuilder<DerivedSigningPubkey>);
+}
+
+#[cfg(c_bindings)]
+impl Refund {
+ respond_with_explicit_signing_pubkey_methods!(self, InvoiceWithExplicitSigningPubkeyBuilder);
+ respond_with_derived_signing_pubkey_methods!(self, InvoiceWithDerivedSigningPubkeyBuilder);
+}
+
+#[cfg(test)]
+impl Refund {
fn as_tlv_stream(&self) -> RefundTlvStreamRef {
self.contents.as_tlv_stream()
}
}
}
+impl PartialEq for Refund {
+ fn eq(&self, other: &Self) -> bool {
+ self.bytes.eq(&other.bytes)
+ }
+}
+
+impl Eq for Refund {}
+
+impl Hash for Refund {
+ fn hash<H: Hasher>(&self, state: &mut H) {
+ self.bytes.hash(state);
+ }
+}
+
impl RefundContents {
pub fn description(&self) -> PrintableString {
PrintableString(&self.description)
#[cfg(test)]
mod tests {
- use super::{Refund, RefundBuilder, RefundTlvStreamRef};
+ use super::{Refund, RefundTlvStreamRef};
+ #[cfg(not(c_bindings))]
+ use {
+ super::RefundBuilder,
+ };
+ #[cfg(c_bindings)]
+ use {
+ super::RefundMaybeWithDerivedMetadataBuilder as RefundBuilder,
+ };
use bitcoin::blockdata::constants::ChainHash;
use bitcoin::network::constants::Network;
use bitcoin::secp256k1::{KeyPair, Secp256k1, SecretKey};
- use core::convert::TryFrom;
+
use core::time::Duration;
+
use crate::blinded_path::{BlindedHop, BlindedPath};
use crate::sign::KeyMaterial;
use crate::ln::channelmanager::PaymentId;
use crate::offers::test_utils::*;
use crate::util::ser::{BigSize, Writeable};
use crate::util::string::PrintableString;
+ use crate::prelude::*;
trait ToBytes {
fn to_bytes(&self) -> Vec<u8>;
projects / rust-lightning / blobdiff