//! Data structures and encoding for refunds.
//!
//! A [`Refund`] is an "offer for money" and is typically constructed by a merchant and presented
-//! directly to the customer. The recipient responds with an [`Invoice`] to be paid.
+//! directly to the customer. The recipient responds with a [`Bolt12Invoice`] to be paid.
//!
//! This is an [`InvoiceRequest`] produced *not* in response to an [`Offer`].
//!
-//! [`Invoice`]: crate::offers::invoice::Invoice
+//! [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
//! [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest
//! [`Offer`]: crate::offers::offer::Offer
//!
+//! # Example
+//!
//! ```
//! extern crate bitcoin;
//! extern crate core;
//!
//! use bitcoin::network::constants::Network;
//! use bitcoin::secp256k1::{KeyPair, PublicKey, Secp256k1, SecretKey};
-//! use lightning::offers::parse::ParseError;
+//! use lightning::offers::parse::Bolt12ParseError;
//! use lightning::offers::refund::{Refund, RefundBuilder};
//! use lightning::util::ser::{Readable, Writeable};
//!
//! # fn create_another_blinded_path() -> BlindedPath { unimplemented!() }
//! #
//! # #[cfg(feature = "std")]
-//! # fn build() -> Result<(), ParseError> {
+//! # fn build() -> Result<(), Bolt12ParseError> {
//! let secp_ctx = Secp256k1::new();
//! let keys = KeyPair::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
//! let pubkey = PublicKey::from(keys);
//! # Ok(())
//! # }
//! ```
+//!
+//! # Note
+//!
+//! If constructing a [`Refund`] for use with a [`ChannelManager`], use
+//! [`ChannelManager::create_refund_builder`] instead of [`RefundBuilder::new`].
+//!
+//! [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
+//! [`ChannelManager::create_refund_builder`]: crate::ln::channelmanager::ChannelManager::create_refund_builder
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::io;
use crate::blinded_path::BlindedPath;
use crate::ln::PaymentHash;
+use crate::ln::channelmanager::PaymentId;
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, ParseError, ParsedMessage, SemanticError};
+use crate::offers::parse::{Bech32Encode, Bolt12ParseError, Bolt12SemanticError, ParsedMessage};
use crate::offers::payer::{PayerContents, PayerTlvStream, PayerTlvStreamRef};
use crate::offers::signer::{Metadata, MetadataMaterial, self};
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.
///
- /// Additionally, sets the required [`Refund::description`], [`Refund::metadata`], and
+ /// Additionally, sets the required [`Refund::description`], [`Refund::payer_metadata`], and
/// [`Refund::amount_msats`].
+ ///
+ /// # Note
+ ///
+ /// If constructing a [`Refund`] for use with a [`ChannelManager`], use
+ /// [`ChannelManager::create_refund_builder`] instead of [`RefundBuilder::new`].
+ ///
+ /// [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
+ /// [`ChannelManager::create_refund_builder`]: crate::ln::channelmanager::ChannelManager::create_refund_builder
pub fn new(
description: String, metadata: Vec<u8>, payer_id: PublicKey, amount_msats: u64
- ) -> Result<Self, SemanticError> {
+ ) -> Result<Self, Bolt12SemanticError> {
if amount_msats > MAX_VALUE_MSAT {
- return Err(SemanticError::InvalidAmount);
+ return Err(Bolt12SemanticError::InvalidAmount);
}
let metadata = Metadata::Bytes(metadata);
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 $(, $self_mut: tt)?
+) => {
/// Similar to [`RefundBuilder::new`] except, if [`RefundBuilder::path`] is called, the payer id
/// is derived from the given [`ExpandedKey`] and nonce. This provides sender privacy by using a
/// different payer id for each refund, assuming a different nonce is used. Otherwise, the
/// Also, sets the metadata when [`RefundBuilder::build`] is called such that it can be used to
/// verify that an [`InvoiceRequest`] was produced for the refund given an [`ExpandedKey`].
///
+ /// The `payment_id` is encrypted in the metadata and should be unique. This ensures that only
+ /// one invoice will be paid for the refund and that payments can be uniquely identified.
+ ///
/// [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest
/// [`ExpandedKey`]: crate::ln::inbound_payment::ExpandedKey
pub fn deriving_payer_id<ES: Deref>(
description: String, node_id: PublicKey, expanded_key: &ExpandedKey, entropy_source: ES,
- secp_ctx: &'a Secp256k1<T>, amount_msats: u64
- ) -> Result<Self, SemanticError> where ES::Target: EntropySource {
+ secp_ctx: &'a Secp256k1<$secp_context>, amount_msats: u64, payment_id: PaymentId
+ ) -> Result<Self, Bolt12SemanticError> where ES::Target: EntropySource {
if amount_msats > MAX_VALUE_MSAT {
- return Err(SemanticError::InvalidAmount);
+ return Err(Bolt12SemanticError::InvalidAmount);
}
let nonce = Nonce::from_entropy_source(entropy_source);
- let derivation_material = MetadataMaterial::new(nonce, expanded_key, IV_BYTES);
+ let payment_id = Some(payment_id);
+ let derivation_material = MetadataMaterial::new(nonce, expanded_key, IV_BYTES, payment_id);
let metadata = Metadata::DerivedSigningPubkey(derivation_material);
Ok(Self {
refund: RefundContents {
/// 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);
+ $return_value
}
/// Sets the [`Refund::chain`] of the given [`Network`] for paying an invoice. If not
/// called, [`Network::Bitcoin`] is assumed.
///
/// Successive calls to this method will override the previous setting.
- pub fn chain(mut self, network: Network) -> Self {
- self.refund.chain = Some(ChainHash::using_genesis_block(network));
- self
+ pub fn chain($self: $self_type, network: Network) -> $return_type {
+ $self.chain_hash(ChainHash::using_genesis_block(network))
+ }
+
+ /// Sets the [`Refund::chain`] of the given [`ChainHash`] for paying an invoice. If not called,
+ /// [`Network::Bitcoin`] is assumed.
+ ///
+ /// Successive calls to this method will override the previous setting.
+ pub(crate) fn chain_hash($($self_mut)* $self: $self_type, chain: ChainHash) -> $return_type {
+ $self.refund.chain = Some(chain);
+ $return_value
}
/// Sets [`Refund::quantity`] of items. This is purely for informational purposes. It is useful
- /// when the refund pertains to an [`Invoice`] that paid for more than one item from an
+ /// when the refund pertains to a [`Bolt12Invoice`] that paid for more than one item from an
/// [`Offer`] as specified by [`InvoiceRequest::quantity`].
///
/// Successive calls to this method will override the previous setting.
///
- /// [`Invoice`]: crate::offers::invoice::Invoice
+ /// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
/// [`InvoiceRequest::quantity`]: crate::offers::invoice_request::InvoiceRequest::quantity
/// [`Offer`]: crate::offers::offer::Offer
- pub fn quantity(mut self, quantity: u64) -> Self {
- self.refund.quantity = Some(quantity);
- self
+ pub fn quantity($($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);
+ $return_value
}
/// Builds a [`Refund`] after checking for valid semantics.
- pub fn build(mut self) -> Result<Refund, SemanticError> {
- if self.refund.chain() == self.refund.implied_chain() {
- self.refund.chain = None;
+ pub fn build($($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 an Invoice.
- if self.refund.payer.0.has_derivation_material() {
- let mut metadata = core::mem::take(&mut self.refund.payer.0);
+ // 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.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_keys() {
+ 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 }
}
}
-/// A `Refund` is a request to send an [`Invoice`] without a preceding [`Offer`].
+/// 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
/// recoup their funds. A refund may be used more generally as an "offer for money", such as with a
/// bitcoin ATM.
///
-/// [`Invoice`]: crate::offers::invoice::Invoice
+/// [`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,
}
-/// The contents of a [`Refund`], which may be shared with an [`Invoice`].
+/// The contents of a [`Refund`], which may be shared with an [`Bolt12Invoice`].
///
-/// [`Invoice`]: crate::offers::invoice::Invoice
+/// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
#[derive(Clone, Debug)]
#[cfg_attr(test, derive(PartialEq))]
pub(super) struct RefundContents {
///
/// If `None`, the refund does not expire.
pub fn absolute_expiry(&self) -> Option<Duration> {
- self.contents.absolute_expiry
+ self.contents.absolute_expiry()
}
/// Whether the refund has expired.
self.contents.is_expired()
}
+ /// Whether the refund has expired given the duration since the Unix epoch.
+ pub fn is_expired_no_std(&self, duration_since_epoch: Duration) -> bool {
+ self.contents.is_expired_no_std(duration_since_epoch)
+ }
+
/// The issuer of the refund, possibly beginning with `user@domain` or `domain`. Intended to be
/// displayed to the user but with the caveat that it has not been verified in any way.
pub fn issuer(&self) -> Option<PrintableString> {
- self.contents.issuer.as_ref().map(|issuer| PrintableString(issuer.as_str()))
+ self.contents.issuer()
}
/// Paths to the sender originating from publicly reachable nodes. Blinded paths provide sender
/// privacy by obfuscating its node id.
pub fn paths(&self) -> &[BlindedPath] {
- self.contents.paths.as_ref().map(|paths| paths.as_slice()).unwrap_or(&[])
+ self.contents.paths()
}
/// An unpredictable series of bytes, typically containing information about the derivation of
/// [`payer_id`].
///
/// [`payer_id`]: Self::payer_id
- pub fn metadata(&self) -> &[u8] {
+ pub fn payer_metadata(&self) -> &[u8] {
self.contents.metadata()
}
/// A chain that the refund is valid for.
pub fn chain(&self) -> ChainHash {
- self.contents.chain.unwrap_or_else(|| self.contents.implied_chain())
+ self.contents.chain()
}
/// The amount to refund in msats (i.e., the minimum lightning-payable unit for [`chain`]).
///
/// [`chain`]: Self::chain
pub fn amount_msats(&self) -> u64 {
- self.contents.amount_msats
+ self.contents.amount_msats()
}
/// Features pertaining to requesting an invoice.
pub fn features(&self) -> &InvoiceRequestFeatures {
- &self.contents.features
+ &self.contents.features()
}
/// The quantity of an item that refund is for.
pub fn quantity(&self) -> Option<u64> {
- self.contents.quantity
+ self.contents.quantity()
}
/// A public node id to send to in the case where there are no [`paths`]. Otherwise, a possibly
///
/// [`paths`]: Self::paths
pub fn payer_id(&self) -> PublicKey {
- self.contents.payer_id
+ self.contents.payer_id()
}
/// Payer provided note to include in the invoice.
pub fn payer_note(&self) -> Option<PrintableString> {
- self.contents.payer_note.as_ref().map(|payer_note| PrintableString(payer_note.as_str()))
+ self.contents.payer_note()
}
+}
+macro_rules! respond_with_explicit_signing_pubkey_methods { ($self: ident, $builder: ty) => {
/// Creates an [`InvoiceBuilder`] for the refund with the given required fields and using the
/// [`Duration`] since [`std::time::SystemTime::UNIX_EPOCH`] as the creation time.
///
/// [`Duration`]: core::time::Duration
#[cfg(feature = "std")]
pub fn respond_with(
- &self, payment_paths: Vec<(BlindedPath, BlindedPayInfo)>, payment_hash: PaymentHash,
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
signing_pubkey: PublicKey,
- ) -> Result<InvoiceBuilder<ExplicitSigningPubkey>, SemanticError> {
+ ) -> 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)
+ $self.respond_with_no_std(payment_paths, payment_hash, signing_pubkey, created_at)
}
/// Creates an [`InvoiceBuilder`] for the refund with the given required fields.
///
/// Unless [`InvoiceBuilder::relative_expiry`] is set, the invoice will expire two hours after
- /// `created_at`, which is used to set [`Invoice::created_at`]. Useful for `no-std` builds where
- /// [`std::time::SystemTime`] is not available.
+ /// `created_at`, which is used to set [`Bolt12Invoice::created_at`]. Useful for `no-std` builds
+ /// where [`std::time::SystemTime`] is not available.
///
/// The caller is expected to remember the preimage of `payment_hash` in order to
/// claim a payment for the invoice.
///
/// This is not exported to bindings users as builder patterns don't map outside of move semantics.
///
- /// [`Invoice::created_at`]: crate::offers::invoice::Invoice::created_at
+ /// [`Bolt12Invoice::created_at`]: crate::offers::invoice::Bolt12Invoice::created_at
pub fn respond_with_no_std(
- &self, payment_paths: Vec<(BlindedPath, BlindedPayInfo)>, payment_hash: PaymentHash,
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
signing_pubkey: PublicKey, created_at: Duration
- ) -> Result<InvoiceBuilder<ExplicitSigningPubkey>, SemanticError> {
- if self.features().requires_unknown_bits() {
- return Err(SemanticError::UnknownRequiredFeatures);
+ ) -> 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, $builder: ty) => {
/// Creates an [`InvoiceBuilder`] for the refund using the given required fields and that uses
- /// derived signing keys to sign the [`Invoice`].
+ /// derived signing keys to sign the [`Bolt12Invoice`].
///
/// See [`Refund::respond_with`] for further details.
///
/// This is not exported to bindings users as builder patterns don't map outside of move semantics.
///
- /// [`Invoice`]: crate::offers::invoice::Invoice
+ /// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
#[cfg(feature = "std")]
pub fn respond_using_derived_keys<ES: Deref>(
- &self, payment_paths: Vec<(BlindedPath, BlindedPayInfo)>, payment_hash: PaymentHash,
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
expanded_key: &ExpandedKey, entropy_source: ES
- ) -> Result<InvoiceBuilder<DerivedSigningPubkey>, SemanticError>
+ ) -> 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(
+ $self.respond_using_derived_keys_no_std(
payment_paths, payment_hash, created_at, expanded_key, entropy_source
)
}
/// Creates an [`InvoiceBuilder`] for the refund using the given required fields and that uses
- /// derived signing keys to sign the [`Invoice`].
+ /// derived signing keys to sign the [`Bolt12Invoice`].
///
/// See [`Refund::respond_with_no_std`] for further details.
///
/// This is not exported to bindings users as builder patterns don't map outside of move semantics.
///
- /// [`Invoice`]: crate::offers::invoice::Invoice
+ /// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
pub fn respond_using_derived_keys_no_std<ES: Deref>(
- &self, payment_paths: Vec<(BlindedPath, BlindedPayInfo)>, payment_hash: PaymentHash,
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
created_at: core::time::Duration, expanded_key: &ExpandedKey, entropy_source: ES
- ) -> Result<InvoiceBuilder<DerivedSigningPubkey>, SemanticError>
+ ) -> Result<$builder, Bolt12SemanticError>
where
ES::Target: EntropySource,
{
- if self.features().requires_unknown_bits() {
- return Err(SemanticError::UnknownRequiredFeatures);
+ 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)
}
+ pub fn absolute_expiry(&self) -> Option<Duration> {
+ self.absolute_expiry
+ }
+
#[cfg(feature = "std")]
pub(super) fn is_expired(&self) -> bool {
- match self.absolute_expiry {
- Some(seconds_from_epoch) => match SystemTime::UNIX_EPOCH.elapsed() {
- Ok(elapsed) => elapsed > seconds_from_epoch,
- Err(_) => false,
- },
- None => false,
- }
+ SystemTime::UNIX_EPOCH
+ .elapsed()
+ .map(|duration_since_epoch| self.is_expired_no_std(duration_since_epoch))
+ .unwrap_or(false)
+ }
+
+ pub(super) fn is_expired_no_std(&self, duration_since_epoch: Duration) -> bool {
+ self.absolute_expiry
+ .map(|absolute_expiry| duration_since_epoch > absolute_expiry)
+ .unwrap_or(false)
+ }
+
+ pub fn issuer(&self) -> Option<PrintableString> {
+ self.issuer.as_ref().map(|issuer| PrintableString(issuer.as_str()))
+ }
+
+ pub fn paths(&self) -> &[BlindedPath] {
+ self.paths.as_ref().map(|paths| paths.as_slice()).unwrap_or(&[])
}
pub(super) fn metadata(&self) -> &[u8] {
ChainHash::using_genesis_block(Network::Bitcoin)
}
- pub(super) fn derives_keys(&self) -> bool {
- self.payer.0.derives_keys()
+ pub fn amount_msats(&self) -> u64 {
+ self.amount_msats
}
- pub(super) fn payer_id(&self) -> PublicKey {
+ /// Features pertaining to requesting an invoice.
+ pub fn features(&self) -> &InvoiceRequestFeatures {
+ &self.features
+ }
+
+ /// The quantity of an item that refund is for.
+ pub fn quantity(&self) -> Option<u64> {
+ self.quantity
+ }
+
+ /// A public node id to send to in the case where there are no [`paths`]. Otherwise, a possibly
+ /// transient pubkey.
+ ///
+ /// [`paths`]: Self::paths
+ pub fn payer_id(&self) -> PublicKey {
self.payer_id
}
+ /// Payer provided note to include in the invoice.
+ pub fn payer_note(&self) -> Option<PrintableString> {
+ self.payer_note.as_ref().map(|payer_note| PrintableString(payer_note.as_str()))
+ }
+
+ pub(super) fn derives_keys(&self) -> bool {
+ self.payer.0.derives_payer_keys()
+ }
+
pub(super) fn as_tlv_stream(&self) -> RefundTlvStreamRef {
let payer = PayerTlvStreamRef {
metadata: self.payer.0.as_bytes(),
}
impl FromStr for Refund {
- type Err = ParseError;
+ type Err = Bolt12ParseError;
fn from_str(s: &str) -> Result<Self, <Self as FromStr>::Err> {
Refund::from_bech32_str(s)
}
impl TryFrom<Vec<u8>> for Refund {
- type Error = ParseError;
+ type Error = Bolt12ParseError;
fn try_from(bytes: Vec<u8>) -> Result<Self, Self::Error> {
let refund = ParsedMessage::<RefundTlvStream>::try_from(bytes)?;
}
impl TryFrom<RefundTlvStream> for RefundContents {
- type Error = SemanticError;
+ type Error = Bolt12SemanticError;
fn try_from(tlv_stream: RefundTlvStream) -> Result<Self, Self::Error> {
let (
) = tlv_stream;
let payer = match payer_metadata {
- None => return Err(SemanticError::MissingPayerMetadata),
+ None => return Err(Bolt12SemanticError::MissingPayerMetadata),
Some(metadata) => PayerContents(Metadata::Bytes(metadata)),
};
if metadata.is_some() {
- return Err(SemanticError::UnexpectedMetadata);
+ return Err(Bolt12SemanticError::UnexpectedMetadata);
}
if chains.is_some() {
- return Err(SemanticError::UnexpectedChain);
+ return Err(Bolt12SemanticError::UnexpectedChain);
}
if currency.is_some() || offer_amount.is_some() {
- return Err(SemanticError::UnexpectedAmount);
+ return Err(Bolt12SemanticError::UnexpectedAmount);
}
let description = match description {
- None => return Err(SemanticError::MissingDescription),
+ None => return Err(Bolt12SemanticError::MissingDescription),
Some(description) => description,
};
if offer_features.is_some() {
- return Err(SemanticError::UnexpectedFeatures);
+ return Err(Bolt12SemanticError::UnexpectedFeatures);
}
let absolute_expiry = absolute_expiry.map(Duration::from_secs);
if quantity_max.is_some() {
- return Err(SemanticError::UnexpectedQuantity);
+ return Err(Bolt12SemanticError::UnexpectedQuantity);
}
if node_id.is_some() {
- return Err(SemanticError::UnexpectedSigningPubkey);
+ return Err(Bolt12SemanticError::UnexpectedSigningPubkey);
}
let amount_msats = match amount {
- None => return Err(SemanticError::MissingAmount),
+ None => return Err(Bolt12SemanticError::MissingAmount),
Some(amount_msats) if amount_msats > MAX_VALUE_MSAT => {
- return Err(SemanticError::InvalidAmount);
+ return Err(Bolt12SemanticError::InvalidAmount);
},
Some(amount_msats) => amount_msats,
};
let features = features.unwrap_or_else(InvoiceRequestFeatures::empty);
let payer_id = match payer_id {
- None => return Err(SemanticError::MissingPayerId),
+ None => return Err(Bolt12SemanticError::MissingPayerId),
Some(payer_id) => payer_id,
};
#[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::ln::features::{InvoiceRequestFeatures, OfferFeatures};
use crate::ln::inbound_payment::ExpandedKey;
use crate::ln::msgs::{DecodeError, MAX_VALUE_MSAT};
use crate::offers::invoice_request::InvoiceRequestTlvStreamRef;
use crate::offers::offer::OfferTlvStreamRef;
- use crate::offers::parse::{ParseError, SemanticError};
+ use crate::offers::parse::{Bolt12ParseError, Bolt12SemanticError};
use crate::offers::payer::PayerTlvStreamRef;
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>;
refund.write(&mut buffer).unwrap();
assert_eq!(refund.bytes, buffer.as_slice());
- assert_eq!(refund.metadata(), &[1; 32]);
+ assert_eq!(refund.payer_metadata(), &[1; 32]);
assert_eq!(refund.description(), PrintableString("foo"));
assert_eq!(refund.absolute_expiry(), None);
#[cfg(feature = "std")]
fn fails_building_refund_with_invalid_amount() {
match RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), MAX_VALUE_MSAT + 1) {
Ok(_) => panic!("expected error"),
- Err(e) => assert_eq!(e, SemanticError::InvalidAmount),
+ Err(e) => assert_eq!(e, Bolt12SemanticError::InvalidAmount),
}
}
let expanded_key = ExpandedKey::new(&KeyMaterial([42; 32]));
let entropy = FixedEntropy {};
let secp_ctx = Secp256k1::new();
+ let payment_id = PaymentId([1; 32]);
let refund = RefundBuilder
- ::deriving_payer_id(desc, node_id, &expanded_key, &entropy, &secp_ctx, 1000)
+ ::deriving_payer_id(desc, node_id, &expanded_key, &entropy, &secp_ctx, 1000, payment_id)
.unwrap()
.build().unwrap();
assert_eq!(refund.payer_id(), node_id);
.unwrap()
.build().unwrap()
.sign(recipient_sign).unwrap();
- assert!(invoice.verify(&expanded_key, &secp_ctx));
+ match invoice.verify(&expanded_key, &secp_ctx) {
+ Ok(payment_id) => assert_eq!(payment_id, PaymentId([1; 32])),
+ Err(()) => panic!("verification failed"),
+ }
let mut tlv_stream = refund.as_tlv_stream();
tlv_stream.2.amount = Some(2000);
.unwrap()
.build().unwrap()
.sign(recipient_sign).unwrap();
- assert!(!invoice.verify(&expanded_key, &secp_ctx));
+ assert!(invoice.verify(&expanded_key, &secp_ctx).is_err());
// Fails verification with altered metadata
let mut tlv_stream = refund.as_tlv_stream();
.unwrap()
.build().unwrap()
.sign(recipient_sign).unwrap();
- assert!(!invoice.verify(&expanded_key, &secp_ctx));
+ assert!(invoice.verify(&expanded_key, &secp_ctx).is_err());
}
#[test]
let expanded_key = ExpandedKey::new(&KeyMaterial([42; 32]));
let entropy = FixedEntropy {};
let secp_ctx = Secp256k1::new();
+ let payment_id = PaymentId([1; 32]);
let blinded_path = BlindedPath {
introduction_node_id: pubkey(40),
};
let refund = RefundBuilder
- ::deriving_payer_id(desc, node_id, &expanded_key, &entropy, &secp_ctx, 1000)
+ ::deriving_payer_id(desc, node_id, &expanded_key, &entropy, &secp_ctx, 1000, payment_id)
.unwrap()
.path(blinded_path)
.build().unwrap();
.unwrap()
.build().unwrap()
.sign(recipient_sign).unwrap();
- assert!(invoice.verify(&expanded_key, &secp_ctx));
+ match invoice.verify(&expanded_key, &secp_ctx) {
+ Ok(payment_id) => assert_eq!(payment_id, PaymentId([1; 32])),
+ Err(()) => panic!("verification failed"),
+ }
// Fails verification with altered fields
let mut tlv_stream = refund.as_tlv_stream();
.unwrap()
.build().unwrap()
.sign(recipient_sign).unwrap();
- assert!(!invoice.verify(&expanded_key, &secp_ctx));
+ assert!(invoice.verify(&expanded_key, &secp_ctx).is_err());
// Fails verification with altered payer_id
let mut tlv_stream = refund.as_tlv_stream();
.unwrap()
.build().unwrap()
.sign(recipient_sign).unwrap();
- assert!(!invoice.verify(&expanded_key, &secp_ctx));
+ assert!(invoice.verify(&expanded_key, &secp_ctx).is_err());
}
#[test]
fn builds_refund_with_absolute_expiry() {
let future_expiry = Duration::from_secs(u64::max_value());
let past_expiry = Duration::from_secs(0);
+ let now = future_expiry - Duration::from_secs(1_000);
let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
.absolute_expiry(future_expiry)
let (_, tlv_stream, _) = refund.as_tlv_stream();
#[cfg(feature = "std")]
assert!(!refund.is_expired());
+ assert!(!refund.is_expired_no_std(now));
assert_eq!(refund.absolute_expiry(), Some(future_expiry));
assert_eq!(tlv_stream.absolute_expiry, Some(future_expiry.as_secs()));
let (_, tlv_stream, _) = refund.as_tlv_stream();
#[cfg(feature = "std")]
assert!(refund.is_expired());
+ assert!(refund.is_expired_no_std(now));
assert_eq!(refund.absolute_expiry(), Some(past_expiry));
assert_eq!(tlv_stream.absolute_expiry, Some(past_expiry.as_secs()));
}
.respond_with_no_std(payment_paths(), payment_hash(), recipient_pubkey(), now())
{
Ok(_) => panic!("expected error"),
- Err(e) => assert_eq!(e, SemanticError::UnknownRequiredFeatures),
+ Err(e) => assert_eq!(e, Bolt12SemanticError::UnknownRequiredFeatures),
}
}
match Refund::try_from(tlv_stream.to_bytes()) {
Ok(_) => panic!("expected error"),
Err(e) => {
- assert_eq!(e, ParseError::InvalidSemantics(SemanticError::MissingPayerMetadata));
+ assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::MissingPayerMetadata));
},
}
}
match Refund::try_from(tlv_stream.to_bytes()) {
Ok(_) => panic!("expected error"),
Err(e) => {
- assert_eq!(e, ParseError::InvalidSemantics(SemanticError::MissingDescription));
+ assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::MissingDescription));
},
}
}
match Refund::try_from(tlv_stream.to_bytes()) {
Ok(_) => panic!("expected error"),
Err(e) => {
- assert_eq!(e, ParseError::InvalidSemantics(SemanticError::MissingAmount));
+ assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::MissingAmount));
},
}
match Refund::try_from(tlv_stream.to_bytes()) {
Ok(_) => panic!("expected error"),
Err(e) => {
- assert_eq!(e, ParseError::InvalidSemantics(SemanticError::InvalidAmount));
+ assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::InvalidAmount));
},
}
}
match Refund::try_from(tlv_stream.to_bytes()) {
Ok(_) => panic!("expected error"),
Err(e) => {
- assert_eq!(e, ParseError::InvalidSemantics(SemanticError::MissingPayerId));
+ assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::MissingPayerId));
},
}
}
match Refund::try_from(tlv_stream.to_bytes()) {
Ok(_) => panic!("expected error"),
Err(e) => {
- assert_eq!(e, ParseError::InvalidSemantics(SemanticError::UnexpectedMetadata));
+ assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::UnexpectedMetadata));
},
}
match Refund::try_from(tlv_stream.to_bytes()) {
Ok(_) => panic!("expected error"),
Err(e) => {
- assert_eq!(e, ParseError::InvalidSemantics(SemanticError::UnexpectedChain));
+ assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::UnexpectedChain));
},
}
match Refund::try_from(tlv_stream.to_bytes()) {
Ok(_) => panic!("expected error"),
Err(e) => {
- assert_eq!(e, ParseError::InvalidSemantics(SemanticError::UnexpectedAmount));
+ assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::UnexpectedAmount));
},
}
match Refund::try_from(tlv_stream.to_bytes()) {
Ok(_) => panic!("expected error"),
Err(e) => {
- assert_eq!(e, ParseError::InvalidSemantics(SemanticError::UnexpectedFeatures));
+ assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::UnexpectedFeatures));
},
}
match Refund::try_from(tlv_stream.to_bytes()) {
Ok(_) => panic!("expected error"),
Err(e) => {
- assert_eq!(e, ParseError::InvalidSemantics(SemanticError::UnexpectedQuantity));
+ assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::UnexpectedQuantity));
},
}
match Refund::try_from(tlv_stream.to_bytes()) {
Ok(_) => panic!("expected error"),
Err(e) => {
- assert_eq!(e, ParseError::InvalidSemantics(SemanticError::UnexpectedSigningPubkey));
+ assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::UnexpectedSigningPubkey));
},
}
}
match Refund::try_from(encoded_refund) {
Ok(_) => panic!("expected error"),
- Err(e) => assert_eq!(e, ParseError::Decode(DecodeError::InvalidValue)),
+ Err(e) => assert_eq!(e, Bolt12ParseError::Decode(DecodeError::InvalidValue)),
}
}
}
projects / rust-lightning / blobdiff