//!
//! use bitcoin::network::constants::Network;
//! use bitcoin::secp256k1::{KeyPair, PublicKey, Secp256k1, SecretKey};
-//! use core::convert::Infallible;
//! use lightning::ln::features::OfferFeatures;
+//! use lightning::offers::invoice_request::UnsignedInvoiceRequest;
//! use lightning::offers::offer::Offer;
//! use lightning::util::ser::Writeable;
//!
//! let pubkey = PublicKey::from(keys);
//! let mut buffer = Vec::new();
//!
+//! # use lightning::offers::invoice_request::{ExplicitPayerId, InvoiceRequestBuilder};
+//! # <InvoiceRequestBuilder<ExplicitPayerId, _>>::from(
//! "lno1qcp4256ypq"
//! .parse::<Offer>()?
//! .request_invoice(vec![42; 64], pubkey)?
+//! # )
//! .chain(Network::Testnet)?
//! .amount_msats(1000)?
//! .quantity(5)?
//! .payer_note("foo".to_string())
//! .build()?
-//! .sign::<_, Infallible>(
-//! |message| Ok(secp_ctx.sign_schnorr_no_aux_rand(message.as_ref().as_digest(), &keys))
+//! .sign(|message: &UnsignedInvoiceRequest|
+//! Ok(secp_ctx.sign_schnorr_no_aux_rand(message.as_ref().as_digest(), &keys))
//! )
//! .expect("failed verifying signature")
//! .write(&mut buffer)
use bitcoin::network::constants::Network;
use bitcoin::secp256k1::{KeyPair, PublicKey, Secp256k1, self};
use bitcoin::secp256k1::schnorr::Signature;
-use core::convert::{AsRef, Infallible, TryFrom};
use core::ops::Deref;
use crate::sign::EntropySource;
use crate::io;
use crate::ln::features::InvoiceRequestFeatures;
use crate::ln::inbound_payment::{ExpandedKey, IV_LEN, Nonce};
use crate::ln::msgs::DecodeError;
-use crate::offers::invoice::{BlindedPayInfo, DerivedSigningPubkey, ExplicitSigningPubkey, InvoiceBuilder};
-use crate::offers::merkle::{SignError, SignatureTlvStream, SignatureTlvStreamRef, TaggedHash, self};
+use crate::offers::invoice::BlindedPayInfo;
+use crate::offers::merkle::{SignError, SignFn, SignatureTlvStream, SignatureTlvStreamRef, TaggedHash, self};
use crate::offers::offer::{Offer, OfferContents, OfferTlvStream, OfferTlvStreamRef};
use crate::offers::parse::{Bolt12ParseError, ParsedMessage, Bolt12SemanticError};
use crate::offers::payer::{PayerContents, PayerTlvStream, PayerTlvStreamRef};
use crate::util::ser::{HighZeroBytesDroppedBigSize, 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::*;
/// Tag for the hash function used when signing an [`InvoiceRequest`]'s merkle root.
secp_ctx: Option<&'b Secp256k1<T>>,
}
+/// Builds an [`InvoiceRequest`] from an [`Offer`] for the "offer to be paid" flow.
+///
+/// See [module-level documentation] for usage.
+///
+/// [module-level documentation]: self
+#[cfg(c_bindings)]
+pub struct InvoiceRequestWithExplicitPayerIdBuilder<'a, 'b> {
+ offer: &'a Offer,
+ invoice_request: InvoiceRequestContentsWithoutPayerId,
+ payer_id: Option<PublicKey>,
+ payer_id_strategy: core::marker::PhantomData<ExplicitPayerId>,
+ secp_ctx: Option<&'b Secp256k1<secp256k1::All>>,
+}
+
+/// Builds an [`InvoiceRequest`] from an [`Offer`] for the "offer to be paid" flow.
+///
+/// See [module-level documentation] for usage.
+///
+/// [module-level documentation]: self
+#[cfg(c_bindings)]
+pub struct InvoiceRequestWithDerivedPayerIdBuilder<'a, 'b> {
+ offer: &'a Offer,
+ invoice_request: InvoiceRequestContentsWithoutPayerId,
+ payer_id: Option<PublicKey>,
+ payer_id_strategy: core::marker::PhantomData<DerivedPayerId>,
+ secp_ctx: Option<&'b Secp256k1<secp256k1::All>>,
+}
+
/// Indicates how [`InvoiceRequest::payer_id`] will be set.
///
/// This is not exported to bindings users as builder patterns don't map outside of move semantics.
impl PayerIdStrategy for ExplicitPayerId {}
impl PayerIdStrategy for DerivedPayerId {}
-impl<'a, 'b, T: secp256k1::Signing> InvoiceRequestBuilder<'a, 'b, ExplicitPayerId, T> {
+macro_rules! invoice_request_explicit_payer_id_builder_methods { ($self: ident, $self_type: ty) => {
+ #[cfg_attr(c_bindings, allow(dead_code))]
pub(super) fn new(offer: &'a Offer, metadata: Vec<u8>, payer_id: PublicKey) -> Self {
Self {
offer,
}
}
+ #[cfg_attr(c_bindings, allow(dead_code))]
pub(super) fn deriving_metadata<ES: Deref>(
offer: &'a Offer, payer_id: PublicKey, expanded_key: &ExpandedKey, entropy_source: ES,
payment_id: PaymentId,
secp_ctx: None,
}
}
-}
-impl<'a, 'b, T: secp256k1::Signing> InvoiceRequestBuilder<'a, 'b, DerivedPayerId, T> {
+ /// Builds an unsigned [`InvoiceRequest`] after checking for valid semantics. It can be signed
+ /// by [`UnsignedInvoiceRequest::sign`].
+ pub fn build($self: $self_type) -> Result<UnsignedInvoiceRequest, Bolt12SemanticError> {
+ let (unsigned_invoice_request, keys, _) = $self.build_with_checks()?;
+ debug_assert!(keys.is_none());
+ Ok(unsigned_invoice_request)
+ }
+} }
+
+macro_rules! invoice_request_derived_payer_id_builder_methods { (
+ $self: ident, $self_type: ty, $secp_context: ty
+) => {
+ #[cfg_attr(c_bindings, allow(dead_code))]
pub(super) fn deriving_payer_id<ES: Deref>(
offer: &'a Offer, expanded_key: &ExpandedKey, entropy_source: ES,
- secp_ctx: &'b Secp256k1<T>, payment_id: PaymentId
+ secp_ctx: &'b Secp256k1<$secp_context>, payment_id: PaymentId
) -> Self where ES::Target: EntropySource {
let nonce = Nonce::from_entropy_source(entropy_source);
let payment_id = Some(payment_id);
secp_ctx: Some(secp_ctx),
}
}
-}
-impl<'a, 'b, P: PayerIdStrategy, T: secp256k1::Signing> InvoiceRequestBuilder<'a, 'b, P, T> {
+ /// Builds a signed [`InvoiceRequest`] after checking for valid semantics.
+ pub fn build_and_sign($self: $self_type) -> Result<InvoiceRequest, Bolt12SemanticError> {
+ let (unsigned_invoice_request, keys, secp_ctx) = $self.build_with_checks()?;
+ #[cfg(c_bindings)]
+ let mut unsigned_invoice_request = unsigned_invoice_request;
+ debug_assert!(keys.is_some());
+
+ let secp_ctx = secp_ctx.unwrap();
+ let keys = keys.unwrap();
+ let invoice_request = unsigned_invoice_request
+ .sign(|message: &UnsignedInvoiceRequest|
+ Ok(secp_ctx.sign_schnorr_no_aux_rand(message.as_ref().as_digest(), &keys))
+ )
+ .unwrap();
+ Ok(invoice_request)
+ }
+} }
+
+macro_rules! invoice_request_builder_methods { (
+ $self: ident, $self_type: ty, $return_type: ty, $return_value: expr, $secp_context: ty $(, $self_mut: tt)?
+) => {
+ #[cfg_attr(c_bindings, allow(dead_code))]
fn create_contents(offer: &Offer, metadata: Metadata) -> InvoiceRequestContentsWithoutPayerId {
let offer = offer.contents.clone();
InvoiceRequestContentsWithoutPayerId {
/// by the offer.
///
/// Successive calls to this method will override the previous setting.
- pub fn chain(mut self, network: Network) -> Result<Self, Bolt12SemanticError> {
- let chain = ChainHash::using_genesis_block(network);
- if !self.offer.supports_chain(chain) {
+ pub fn chain($self: $self_type, network: Network) -> Result<$return_type, Bolt12SemanticError> {
+ $self.chain_hash(ChainHash::using_genesis_block(network))
+ }
+
+ /// Sets the [`InvoiceRequest::chain`] for paying an invoice. If not called, the chain hash of
+ /// [`Network::Bitcoin`] is assumed. Errors if the chain for `network` is not supported by the
+ /// offer.
+ ///
+ /// Successive calls to this method will override the previous setting.
+ pub(crate) fn chain_hash($($self_mut)* $self: $self_type, chain: ChainHash) -> Result<$return_type, Bolt12SemanticError> {
+ if !$self.offer.supports_chain(chain) {
return Err(Bolt12SemanticError::UnsupportedChain);
}
- self.invoice_request.chain = Some(chain);
- Ok(self)
+ $self.invoice_request.chain = Some(chain);
+ Ok($return_value)
}
/// Sets the [`InvoiceRequest::amount_msats`] for paying an invoice. Errors if `amount_msats` is
/// Successive calls to this method will override the previous setting.
///
/// [`quantity`]: Self::quantity
- pub fn amount_msats(mut self, amount_msats: u64) -> Result<Self, Bolt12SemanticError> {
- self.invoice_request.offer.check_amount_msats_for_quantity(
- Some(amount_msats), self.invoice_request.quantity
+ pub fn amount_msats($($self_mut)* $self: $self_type, amount_msats: u64) -> Result<$return_type, Bolt12SemanticError> {
+ $self.invoice_request.offer.check_amount_msats_for_quantity(
+ Some(amount_msats), $self.invoice_request.quantity
)?;
- self.invoice_request.amount_msats = Some(amount_msats);
- Ok(self)
+ $self.invoice_request.amount_msats = Some(amount_msats);
+ Ok($return_value)
}
/// Sets [`InvoiceRequest::quantity`] of items. If not set, `1` is assumed. Errors if `quantity`
/// does not conform to [`Offer::is_valid_quantity`].
///
/// Successive calls to this method will override the previous setting.
- pub fn quantity(mut self, quantity: u64) -> Result<Self, Bolt12SemanticError> {
- self.invoice_request.offer.check_quantity(Some(quantity))?;
- self.invoice_request.quantity = Some(quantity);
- Ok(self)
+ pub fn quantity($($self_mut)* $self: $self_type, quantity: u64) -> Result<$return_type, Bolt12SemanticError> {
+ $self.invoice_request.offer.check_quantity(Some(quantity))?;
+ $self.invoice_request.quantity = Some(quantity);
+ Ok($return_value)
}
/// Sets the [`InvoiceRequest::payer_note`].
///
/// Successive calls to this method will override the previous setting.
- pub fn payer_note(mut self, payer_note: String) -> Self {
- self.invoice_request.payer_note = Some(payer_note);
- self
+ pub fn payer_note($($self_mut)* $self: $self_type, payer_note: String) -> $return_type {
+ $self.invoice_request.payer_note = Some(payer_note);
+ $return_value
}
- fn build_with_checks(mut self) -> Result<
- (UnsignedInvoiceRequest, Option<KeyPair>, Option<&'b Secp256k1<T>>),
+ fn build_with_checks($($self_mut)* $self: $self_type) -> Result<
+ (UnsignedInvoiceRequest, Option<KeyPair>, Option<&'b Secp256k1<$secp_context>>),
Bolt12SemanticError
> {
#[cfg(feature = "std")] {
- if self.offer.is_expired() {
+ if $self.offer.is_expired() {
return Err(Bolt12SemanticError::AlreadyExpired);
}
}
- let chain = self.invoice_request.chain();
- if !self.offer.supports_chain(chain) {
+ let chain = $self.invoice_request.chain();
+ if !$self.offer.supports_chain(chain) {
return Err(Bolt12SemanticError::UnsupportedChain);
}
- if chain == self.offer.implied_chain() {
- self.invoice_request.chain = None;
+ if chain == $self.offer.implied_chain() {
+ $self.invoice_request.chain = None;
}
- if self.offer.amount().is_none() && self.invoice_request.amount_msats.is_none() {
+ if $self.offer.amount().is_none() && $self.invoice_request.amount_msats.is_none() {
return Err(Bolt12SemanticError::MissingAmount);
}
- self.invoice_request.offer.check_quantity(self.invoice_request.quantity)?;
- self.invoice_request.offer.check_amount_msats_for_quantity(
- self.invoice_request.amount_msats, self.invoice_request.quantity
+ $self.invoice_request.offer.check_quantity($self.invoice_request.quantity)?;
+ $self.invoice_request.offer.check_amount_msats_for_quantity(
+ $self.invoice_request.amount_msats, $self.invoice_request.quantity
)?;
- Ok(self.build_without_checks())
+ Ok($self.build_without_checks())
}
- fn build_without_checks(mut self) ->
- (UnsignedInvoiceRequest, Option<KeyPair>, Option<&'b Secp256k1<T>>)
+ fn build_without_checks($($self_mut)* $self: $self_type) ->
+ (UnsignedInvoiceRequest, Option<KeyPair>, Option<&'b Secp256k1<$secp_context>>)
{
// Create the metadata for stateless verification of a Bolt12Invoice.
let mut keys = None;
- let secp_ctx = self.secp_ctx.clone();
- if self.invoice_request.payer.0.has_derivation_material() {
- let mut metadata = core::mem::take(&mut self.invoice_request.payer.0);
+ let secp_ctx = $self.secp_ctx.clone();
+ if $self.invoice_request.payer.0.has_derivation_material() {
+ let mut metadata = core::mem::take(&mut $self.invoice_request.payer.0);
- let mut tlv_stream = self.invoice_request.as_tlv_stream();
+ let mut tlv_stream = $self.invoice_request.as_tlv_stream();
debug_assert!(tlv_stream.2.payer_id.is_none());
tlv_stream.0.metadata = None;
if !metadata.derives_payer_keys() {
- tlv_stream.2.payer_id = self.payer_id.as_ref();
+ tlv_stream.2.payer_id = $self.payer_id.as_ref();
}
- let (derived_metadata, derived_keys) = metadata.derive_from(tlv_stream, self.secp_ctx);
+ let (derived_metadata, derived_keys) = metadata.derive_from(tlv_stream, $self.secp_ctx);
metadata = derived_metadata;
keys = derived_keys;
if let Some(keys) = keys {
- debug_assert!(self.payer_id.is_none());
- self.payer_id = Some(keys.public_key());
+ debug_assert!($self.payer_id.is_none());
+ $self.payer_id = Some(keys.public_key());
}
- self.invoice_request.payer.0 = metadata;
+ $self.invoice_request.payer.0 = metadata;
}
- debug_assert!(self.invoice_request.payer.0.as_bytes().is_some());
- debug_assert!(self.payer_id.is_some());
- let payer_id = self.payer_id.unwrap();
+ debug_assert!($self.invoice_request.payer.0.as_bytes().is_some());
+ debug_assert!($self.payer_id.is_some());
+ let payer_id = $self.payer_id.unwrap();
let invoice_request = InvoiceRequestContents {
- inner: self.invoice_request,
+ #[cfg(not(c_bindings))]
+ inner: $self.invoice_request,
+ #[cfg(c_bindings)]
+ inner: $self.invoice_request.clone(),
payer_id,
};
- let unsigned_invoice_request = UnsignedInvoiceRequest::new(self.offer, invoice_request);
+ let unsigned_invoice_request = UnsignedInvoiceRequest::new($self.offer, invoice_request);
(unsigned_invoice_request, keys, secp_ctx)
}
-}
+} }
-impl<'a, 'b, T: secp256k1::Signing> InvoiceRequestBuilder<'a, 'b, ExplicitPayerId, T> {
- /// Builds an unsigned [`InvoiceRequest`] after checking for valid semantics. It can be signed
- /// by [`UnsignedInvoiceRequest::sign`].
- pub fn build(self) -> Result<UnsignedInvoiceRequest, Bolt12SemanticError> {
- let (unsigned_invoice_request, keys, _) = self.build_with_checks()?;
- debug_assert!(keys.is_none());
- Ok(unsigned_invoice_request)
+#[cfg(test)]
+macro_rules! invoice_request_builder_test_methods { (
+ $self: ident, $self_type: ty, $return_type: ty, $return_value: expr $(, $self_mut: tt)?
+) => {
+ #[cfg_attr(c_bindings, allow(dead_code))]
+ fn chain_unchecked($($self_mut)* $self: $self_type, network: Network) -> $return_type {
+ let chain = ChainHash::using_genesis_block(network);
+ $self.invoice_request.chain = Some(chain);
+ $return_value
}
-}
-
-impl<'a, 'b, T: secp256k1::Signing> InvoiceRequestBuilder<'a, 'b, DerivedPayerId, T> {
- /// Builds a signed [`InvoiceRequest`] after checking for valid semantics.
- pub fn build_and_sign(self) -> Result<InvoiceRequest, Bolt12SemanticError> {
- let (unsigned_invoice_request, keys, secp_ctx) = self.build_with_checks()?;
- debug_assert!(keys.is_some());
- let secp_ctx = secp_ctx.unwrap();
- let keys = keys.unwrap();
- let invoice_request = unsigned_invoice_request
- .sign::<_, Infallible>(
- |message| Ok(secp_ctx.sign_schnorr_no_aux_rand(message.as_ref().as_digest(), &keys))
- )
- .unwrap();
- Ok(invoice_request)
+ #[cfg_attr(c_bindings, allow(dead_code))]
+ fn amount_msats_unchecked($($self_mut)* $self: $self_type, amount_msats: u64) -> $return_type {
+ $self.invoice_request.amount_msats = Some(amount_msats);
+ $return_value
}
-}
-#[cfg(test)]
-impl<'a, 'b, P: PayerIdStrategy, T: secp256k1::Signing> InvoiceRequestBuilder<'a, 'b, P, T> {
- fn chain_unchecked(mut self, network: Network) -> Self {
- let chain = ChainHash::using_genesis_block(network);
- self.invoice_request.chain = Some(chain);
- self
+ #[cfg_attr(c_bindings, allow(dead_code))]
+ fn features_unchecked($($self_mut)* $self: $self_type, features: InvoiceRequestFeatures) -> $return_type {
+ $self.invoice_request.features = features;
+ $return_value
}
- fn amount_msats_unchecked(mut self, amount_msats: u64) -> Self {
- self.invoice_request.amount_msats = Some(amount_msats);
- self
+ #[cfg_attr(c_bindings, allow(dead_code))]
+ fn quantity_unchecked($($self_mut)* $self: $self_type, quantity: u64) -> $return_type {
+ $self.invoice_request.quantity = Some(quantity);
+ $return_value
}
- fn features_unchecked(mut self, features: InvoiceRequestFeatures) -> Self {
- self.invoice_request.features = features;
- self
+ #[cfg_attr(c_bindings, allow(dead_code))]
+ pub(super) fn build_unchecked($self: $self_type) -> UnsignedInvoiceRequest {
+ $self.build_without_checks().0
}
+} }
+
+impl<'a, 'b, T: secp256k1::Signing> InvoiceRequestBuilder<'a, 'b, ExplicitPayerId, T> {
+ invoice_request_explicit_payer_id_builder_methods!(self, Self);
+}
+
+impl<'a, 'b, T: secp256k1::Signing> InvoiceRequestBuilder<'a, 'b, DerivedPayerId, T> {
+ invoice_request_derived_payer_id_builder_methods!(self, Self, T);
+}
+
+impl<'a, 'b, P: PayerIdStrategy, T: secp256k1::Signing> InvoiceRequestBuilder<'a, 'b, P, T> {
+ invoice_request_builder_methods!(self, Self, Self, self, T, mut);
+
+ #[cfg(test)]
+ invoice_request_builder_test_methods!(self, Self, Self, self, mut);
+}
+
+#[cfg(all(c_bindings, not(test)))]
+impl<'a, 'b> InvoiceRequestWithExplicitPayerIdBuilder<'a, 'b> {
+ invoice_request_explicit_payer_id_builder_methods!(self, &mut Self);
+ invoice_request_builder_methods!(self, &mut Self, (), (), secp256k1::All);
+}
+
+#[cfg(all(c_bindings, test))]
+impl<'a, 'b> InvoiceRequestWithExplicitPayerIdBuilder<'a, 'b> {
+ invoice_request_explicit_payer_id_builder_methods!(self, &mut Self);
+ invoice_request_builder_methods!(self, &mut Self, &mut Self, self, secp256k1::All);
+ invoice_request_builder_test_methods!(self, &mut Self, &mut Self, self);
+}
+
+#[cfg(all(c_bindings, not(test)))]
+impl<'a, 'b> InvoiceRequestWithDerivedPayerIdBuilder<'a, 'b> {
+ invoice_request_derived_payer_id_builder_methods!(self, &mut Self, secp256k1::All);
+ invoice_request_builder_methods!(self, &mut Self, (), (), secp256k1::All);
+}
- fn quantity_unchecked(mut self, quantity: u64) -> Self {
- self.invoice_request.quantity = Some(quantity);
- self
+#[cfg(all(c_bindings, test))]
+impl<'a, 'b> InvoiceRequestWithDerivedPayerIdBuilder<'a, 'b> {
+ invoice_request_derived_payer_id_builder_methods!(self, &mut Self, secp256k1::All);
+ invoice_request_builder_methods!(self, &mut Self, &mut Self, self, secp256k1::All);
+ invoice_request_builder_test_methods!(self, &mut Self, &mut Self, self);
+}
+
+#[cfg(c_bindings)]
+impl<'a, 'b> From<InvoiceRequestWithExplicitPayerIdBuilder<'a, 'b>>
+for InvoiceRequestBuilder<'a, 'b, ExplicitPayerId, secp256k1::All> {
+ fn from(builder: InvoiceRequestWithExplicitPayerIdBuilder<'a, 'b>) -> Self {
+ let InvoiceRequestWithExplicitPayerIdBuilder {
+ offer, invoice_request, payer_id, payer_id_strategy, secp_ctx,
+ } = builder;
+
+ Self {
+ offer, invoice_request, payer_id, payer_id_strategy, secp_ctx,
+ }
}
+}
- pub(super) fn build_unchecked(self) -> UnsignedInvoiceRequest {
- self.build_without_checks().0
+#[cfg(c_bindings)]
+impl<'a, 'b> From<InvoiceRequestWithDerivedPayerIdBuilder<'a, 'b>>
+for InvoiceRequestBuilder<'a, 'b, DerivedPayerId, secp256k1::All> {
+ fn from(builder: InvoiceRequestWithDerivedPayerIdBuilder<'a, 'b>) -> Self {
+ let InvoiceRequestWithDerivedPayerIdBuilder {
+ offer, invoice_request, payer_id, payer_id_strategy, secp_ctx,
+ } = builder;
+
+ Self {
+ offer, invoice_request, payer_id, payer_id_strategy, secp_ctx,
+ }
}
}
tagged_hash: TaggedHash,
}
+/// A function for signing an [`UnsignedInvoiceRequest`].
+pub trait SignInvoiceRequestFn {
+ /// Signs a [`TaggedHash`] computed over the merkle root of `message`'s TLV stream.
+ fn sign_invoice_request(&self, message: &UnsignedInvoiceRequest) -> Result<Signature, ()>;
+}
+
+impl<F> SignInvoiceRequestFn for F
+where
+ F: Fn(&UnsignedInvoiceRequest) -> Result<Signature, ()>,
+{
+ fn sign_invoice_request(&self, message: &UnsignedInvoiceRequest) -> Result<Signature, ()> {
+ self(message)
+ }
+}
+
+impl<F> SignFn<UnsignedInvoiceRequest> for F
+where
+ F: SignInvoiceRequestFn,
+{
+ fn sign(&self, message: &UnsignedInvoiceRequest) -> Result<Signature, ()> {
+ self.sign_invoice_request(message)
+ }
+}
+
impl UnsignedInvoiceRequest {
fn new(offer: &Offer, contents: InvoiceRequestContents) -> Self {
// Use the offer bytes instead of the offer TLV stream as the offer may have contained
pub fn tagged_hash(&self) -> &TaggedHash {
&self.tagged_hash
}
+}
+macro_rules! unsigned_invoice_request_sign_method { (
+ $self: ident, $self_type: ty $(, $self_mut: tt)?
+) => {
/// Signs the [`TaggedHash`] of the invoice request using the given function.
///
/// Note: The hash computation may have included unknown, odd TLV records.
- ///
- /// This is not exported to bindings users as functions are not yet mapped.
- pub fn sign<F, E>(mut self, sign: F) -> Result<InvoiceRequest, SignError<E>>
- where
- F: FnOnce(&Self) -> Result<Signature, E>
- {
- let pubkey = self.contents.payer_id;
- let signature = merkle::sign_message(sign, &self, pubkey)?;
+ pub fn sign<F: SignInvoiceRequestFn>(
+ $($self_mut)* $self: $self_type, sign: F
+ ) -> Result<InvoiceRequest, SignError> {
+ let pubkey = $self.contents.payer_id;
+ let signature = merkle::sign_message(sign, &$self, pubkey)?;
// Append the signature TLV record to the bytes.
let signature_tlv_stream = SignatureTlvStreamRef {
signature: Some(&signature),
};
- signature_tlv_stream.write(&mut self.bytes).unwrap();
+ signature_tlv_stream.write(&mut $self.bytes).unwrap();
Ok(InvoiceRequest {
- bytes: self.bytes,
- contents: self.contents,
+ #[cfg(not(c_bindings))]
+ bytes: $self.bytes,
+ #[cfg(c_bindings)]
+ bytes: $self.bytes.clone(),
+ #[cfg(not(c_bindings))]
+ contents: $self.contents,
+ #[cfg(c_bindings)]
+ contents: $self.contents.clone(),
signature,
})
}
+} }
+
+#[cfg(not(c_bindings))]
+impl UnsignedInvoiceRequest {
+ unsigned_invoice_request_sign_method!(self, Self, mut);
+}
+
+#[cfg(c_bindings)]
+impl UnsignedInvoiceRequest {
+ unsigned_invoice_request_sign_method!(self, &mut Self);
}
impl AsRef<TaggedHash> for UnsignedInvoiceRequest {
invoice_request_accessors!(self, self.contents);
}
-impl InvoiceRequest {
- offer_accessors!(self, self.contents.inner.offer);
- invoice_request_accessors!(self, self.contents);
-
- /// Signature of the invoice request using [`payer_id`].
- ///
- /// [`payer_id`]: Self::payer_id
- pub fn signature(&self) -> Signature {
- self.signature
- }
-
+macro_rules! invoice_request_respond_with_explicit_signing_pubkey_methods { (
+ $self: ident, $contents: expr, $builder: ty
+) => {
/// Creates an [`InvoiceBuilder`] for the request with the given required fields and using the
/// [`Duration`] since [`std::time::SystemTime::UNIX_EPOCH`] as the creation time.
///
/// See [`InvoiceRequest::respond_with_no_std`] for further details where the aforementioned
/// creation time is used for the `created_at` parameter.
///
- /// This is not exported to bindings users as builder patterns don't map outside of move semantics.
- ///
/// [`Duration`]: core::time::Duration
#[cfg(feature = "std")]
pub fn respond_with(
- &self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash
- ) -> Result<InvoiceBuilder<ExplicitSigningPubkey>, Bolt12SemanticError> {
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash
+ ) -> 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, created_at)
+ $contents.respond_with_no_std(payment_paths, payment_hash, created_at)
}
/// Creates an [`InvoiceBuilder`] for the request with the given required fields.
/// If the originating [`Offer`] was created using [`OfferBuilder::deriving_signing_pubkey`],
/// then use [`InvoiceRequest::verify`] and [`VerifiedInvoiceRequest`] methods instead.
///
- /// This is not exported to bindings users as builder patterns don't map outside of move semantics.
- ///
/// [`Bolt12Invoice::created_at`]: crate::offers::invoice::Bolt12Invoice::created_at
/// [`OfferBuilder::deriving_signing_pubkey`]: crate::offers::offer::OfferBuilder::deriving_signing_pubkey
pub fn respond_with_no_std(
- &self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
created_at: core::time::Duration
- ) -> Result<InvoiceBuilder<ExplicitSigningPubkey>, Bolt12SemanticError> {
- if self.invoice_request_features().requires_unknown_bits() {
+ ) -> Result<$builder, Bolt12SemanticError> {
+ if $contents.invoice_request_features().requires_unknown_bits() {
return Err(Bolt12SemanticError::UnknownRequiredFeatures);
}
- InvoiceBuilder::for_offer(self, payment_paths, created_at, payment_hash)
+ <$builder>::for_offer(&$contents, payment_paths, created_at, payment_hash)
}
+} }
+macro_rules! invoice_request_verify_method { ($self: ident, $self_type: ty) => {
/// Verifies that the request was for an offer created using the given key. Returns the verified
/// request which contains the derived keys needed to sign a [`Bolt12Invoice`] for the request
/// if they could be extracted from the metadata.
///
/// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
- pub fn verify<T: secp256k1::Signing>(
- self, key: &ExpandedKey, secp_ctx: &Secp256k1<T>
+ pub fn verify<
+ #[cfg(not(c_bindings))]
+ T: secp256k1::Signing
+ >(
+ $self: $self_type, key: &ExpandedKey,
+ #[cfg(not(c_bindings))]
+ secp_ctx: &Secp256k1<T>,
+ #[cfg(c_bindings)]
+ secp_ctx: &Secp256k1<secp256k1::All>,
) -> Result<VerifiedInvoiceRequest, ()> {
- let keys = self.contents.inner.offer.verify(&self.bytes, key, secp_ctx)?;
+ let keys = $self.contents.inner.offer.verify(&$self.bytes, key, secp_ctx)?;
Ok(VerifiedInvoiceRequest {
- inner: self,
+ #[cfg(not(c_bindings))]
+ inner: $self,
+ #[cfg(c_bindings)]
+ inner: $self.clone(),
keys,
})
}
- #[cfg(test)]
- fn as_tlv_stream(&self) -> FullInvoiceRequestTlvStreamRef {
+} }
+
+#[cfg(not(c_bindings))]
+impl InvoiceRequest {
+ offer_accessors!(self, self.contents.inner.offer);
+ invoice_request_accessors!(self, self.contents);
+ invoice_request_respond_with_explicit_signing_pubkey_methods!(self, self, InvoiceBuilder<ExplicitSigningPubkey>);
+ invoice_request_verify_method!(self, Self);
+}
+
+#[cfg(c_bindings)]
+impl InvoiceRequest {
+ offer_accessors!(self, self.contents.inner.offer);
+ invoice_request_accessors!(self, self.contents);
+ invoice_request_respond_with_explicit_signing_pubkey_methods!(self, self, InvoiceWithExplicitSigningPubkeyBuilder);
+ invoice_request_verify_method!(self, &Self);
+}
+
+impl InvoiceRequest {
+ /// Signature of the invoice request using [`payer_id`].
+ ///
+ /// [`payer_id`]: Self::payer_id
+ pub fn signature(&self) -> Signature {
+ self.signature
+ }
+
+ pub(crate) fn as_tlv_stream(&self) -> FullInvoiceRequestTlvStreamRef {
let (payer_tlv_stream, offer_tlv_stream, invoice_request_tlv_stream) =
self.contents.as_tlv_stream();
let signature_tlv_stream = SignatureTlvStreamRef {
}
}
-impl VerifiedInvoiceRequest {
- offer_accessors!(self, self.inner.contents.inner.offer);
- invoice_request_accessors!(self, self.inner.contents);
-
- /// Creates an [`InvoiceBuilder`] for the request with the given required fields and using the
- /// [`Duration`] since [`std::time::SystemTime::UNIX_EPOCH`] as the creation time.
- ///
- /// See [`InvoiceRequest::respond_with_no_std`] for further details.
- ///
- /// This is not exported to bindings users as builder patterns don't map outside of move semantics.
- ///
- /// [`Duration`]: core::time::Duration
- #[cfg(feature = "std")]
- pub fn respond_with(
- &self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash
- ) -> Result<InvoiceBuilder<ExplicitSigningPubkey>, Bolt12SemanticError> {
- self.inner.respond_with(payment_paths, payment_hash)
- }
-
- /// Creates an [`InvoiceBuilder`] for the request with the given required fields.
- ///
- /// See [`InvoiceRequest::respond_with_no_std`] for further details.
- ///
- /// This is not exported to bindings users as builder patterns don't map outside of move semantics.
- pub fn respond_with_no_std(
- &self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
- created_at: core::time::Duration
- ) -> Result<InvoiceBuilder<ExplicitSigningPubkey>, Bolt12SemanticError> {
- self.inner.respond_with_no_std(payment_paths, payment_hash, created_at)
- }
-
+macro_rules! invoice_request_respond_with_derived_signing_pubkey_methods { (
+ $self: ident, $contents: expr, $builder: ty
+) => {
/// Creates an [`InvoiceBuilder`] for the request using the given required fields and that uses
/// derived signing keys from the originating [`Offer`] to sign the [`Bolt12Invoice`]. Must use
/// the same [`ExpandedKey`] as the one used to create the offer.
///
/// See [`InvoiceRequest::respond_with`] for further details.
///
- /// This is not exported to bindings users as builder patterns don't map outside of move semantics.
- ///
/// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
#[cfg(feature = "std")]
pub fn respond_using_derived_keys(
- &self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash
- ) -> Result<InvoiceBuilder<DerivedSigningPubkey>, Bolt12SemanticError> {
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash
+ ) -> 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_using_derived_keys_no_std(payment_paths, payment_hash, created_at)
+ $self.respond_using_derived_keys_no_std(payment_paths, payment_hash, created_at)
}
/// Creates an [`InvoiceBuilder`] for the request using the given required fields and that uses
///
/// See [`InvoiceRequest::respond_with_no_std`] for further details.
///
- /// This is not exported to bindings users as builder patterns don't map outside of move semantics.
- ///
/// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
pub fn respond_using_derived_keys_no_std(
- &self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
created_at: core::time::Duration
- ) -> Result<InvoiceBuilder<DerivedSigningPubkey>, Bolt12SemanticError> {
- if self.inner.invoice_request_features().requires_unknown_bits() {
+ ) -> Result<$builder, Bolt12SemanticError> {
+ if $self.inner.invoice_request_features().requires_unknown_bits() {
return Err(Bolt12SemanticError::UnknownRequiredFeatures);
}
- let keys = match self.keys {
+ let keys = match $self.keys {
None => return Err(Bolt12SemanticError::InvalidMetadata),
Some(keys) => keys,
};
- InvoiceBuilder::for_offer_using_keys(
- &self.inner, payment_paths, created_at, payment_hash, keys
+ <$builder>::for_offer_using_keys(
+ &$self.inner, payment_paths, created_at, payment_hash, keys
)
}
+} }
+
+impl VerifiedInvoiceRequest {
+ offer_accessors!(self, self.inner.contents.inner.offer);
+ invoice_request_accessors!(self, self.inner.contents);
+ #[cfg(not(c_bindings))]
+ invoice_request_respond_with_explicit_signing_pubkey_methods!(self, self.inner, InvoiceBuilder<ExplicitSigningPubkey>);
+ #[cfg(c_bindings)]
+ invoice_request_respond_with_explicit_signing_pubkey_methods!(self, self.inner, InvoiceWithExplicitSigningPubkeyBuilder);
+ #[cfg(not(c_bindings))]
+ invoice_request_respond_with_derived_signing_pubkey_methods!(self, self.inner, InvoiceBuilder<DerivedSigningPubkey>);
+ #[cfg(c_bindings)]
+ invoice_request_respond_with_derived_signing_pubkey_methods!(self, self.inner, InvoiceWithDerivedSigningPubkeyBuilder);
}
impl InvoiceRequestContents {
type FullInvoiceRequestTlvStream =
(PayerTlvStream, OfferTlvStream, InvoiceRequestTlvStream, SignatureTlvStream);
-#[cfg(test)]
type FullInvoiceRequestTlvStreamRef<'a> = (
PayerTlvStreamRef<'a>,
OfferTlvStreamRef<'a>,
Some(signature) => signature,
};
let message = TaggedHash::new(SIGNATURE_TAG, &bytes);
- merkle::verify_signature(&signature, message, contents.payer_id)?;
+ merkle::verify_signature(&signature, &message, contents.payer_id)?;
Ok(InvoiceRequest { bytes, contents, signature })
}
use bitcoin::blockdata::constants::ChainHash;
use bitcoin::network::constants::Network;
use bitcoin::secp256k1::{KeyPair, Secp256k1, SecretKey, self};
- use core::convert::{Infallible, TryFrom};
use core::num::NonZeroU64;
#[cfg(feature = "std")]
use core::time::Duration;
use crate::ln::msgs::{DecodeError, MAX_VALUE_MSAT};
use crate::offers::invoice::{Bolt12Invoice, SIGNATURE_TAG as INVOICE_SIGNATURE_TAG};
use crate::offers::merkle::{SignError, SignatureTlvStreamRef, TaggedHash, self};
- use crate::offers::offer::{Amount, OfferBuilder, OfferTlvStreamRef, Quantity};
+ use crate::offers::offer::{Amount, OfferTlvStreamRef, Quantity};
+ #[cfg(not(c_bindings))]
+ use {
+ crate::offers::offer::OfferBuilder,
+ };
+ #[cfg(c_bindings)]
+ use {
+ crate::offers::offer::OfferWithExplicitMetadataBuilder as OfferBuilder,
+ };
use crate::offers::parse::{Bolt12ParseError, Bolt12SemanticError};
use crate::offers::payer::PayerTlvStreamRef;
use crate::offers::test_utils::*;
.build().unwrap()
.request_invoice(vec![1; 32], payer_pubkey()).unwrap()
.build().unwrap();
+ #[cfg(c_bindings)]
+ let mut unsigned_invoice_request = unsigned_invoice_request;
let mut buffer = Vec::new();
unsigned_invoice_request.write(&mut buffer).unwrap();
assert_eq!(invoice_request.payer_note(), None);
let message = TaggedHash::new(SIGNATURE_TAG, &invoice_request.bytes);
- assert!(merkle::verify_signature(&invoice_request.signature, message, payer_pubkey()).is_ok());
+ assert!(merkle::verify_signature(&invoice_request.signature, &message, payer_pubkey()).is_ok());
assert_eq!(
invoice_request.as_tlv_stream(),
.build().unwrap()
.request_invoice(vec![1; 32], payer_pubkey()).unwrap()
.build().unwrap()
- .sign(|_| Err(()))
+ .sign(fail_sign)
{
Ok(_) => panic!("expected error"),
- Err(e) => assert_eq!(e, SignError::Signing(())),
+ Err(e) => assert_eq!(e, SignError::Signing),
}
match OfferBuilder::new("foo".into(), recipient_pubkey())
.build().unwrap()
.request_invoice(vec![1; 32], keys.public_key()).unwrap()
.build().unwrap()
- .sign::<_, Infallible>(
- |message| Ok(secp_ctx.sign_schnorr_no_aux_rand(message.as_ref().as_digest(), &keys))
+ .sign(|message: &UnsignedInvoiceRequest|
+ Ok(secp_ctx.sign_schnorr_no_aux_rand(message.as_ref().as_digest(), &keys))
)
.unwrap();
projects / rust-lightning / blobdiff