//! 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 core::convert::TryFrom;
//! use core::time::Duration;
//!
-//! use bitcoin::network::constants::Network;
-//! use bitcoin::secp256k1::{KeyPair, PublicKey, Secp256k1, SecretKey};
-//! use lightning::offers::parse::ParseError;
+//! use bitcoin::network::Network;
+//! use bitcoin::secp256k1::{Keypair, PublicKey, Secp256k1, SecretKey};
+//! use lightning::offers::parse::Bolt12ParseError;
//! use lightning::offers::refund::{Refund, RefundBuilder};
//! use lightning::util::ser::{Readable, Writeable};
//!
-//! # use lightning::onion_message::BlindedPath;
+//! # use lightning::blinded_path::BlindedPath;
//! # #[cfg(feature = "std")]
//! # use std::time::SystemTime;
//! #
//! # 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 keys = Keypair::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
//! let pubkey = PublicKey::from(keys);
//!
//! let expiration = SystemTime::now() + Duration::from_secs(24 * 60 * 60);
-//! let refund = RefundBuilder::new("coffee, large".to_string(), vec![1; 32], pubkey, 20_000)?
+//! let refund = RefundBuilder::new(vec![1; 32], pubkey, 20_000)?
+//! .description("coffee, large".to_string())
//! .absolute_expiry(expiration.duration_since(SystemTime::UNIX_EPOCH).unwrap())
//! .issuer("Foo Bar".to_string())
//! .path(create_blinded_path())
//! # 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;
-use core::convert::TryFrom;
+use bitcoin::network::Network;
+use bitcoin::secp256k1::{PublicKey, Secp256k1, self};
+use core::hash::{Hash, Hasher};
+use core::ops::Deref;
use core::str::FromStr;
use core::time::Duration;
+use crate::sign::EntropySource;
use crate::io;
-use crate::ln::PaymentHash;
+use crate::blinded_path::BlindedPath;
+use crate::ln::types::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, 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::onion_message::BlindedPath;
-use crate::util::ser::{SeekReadable, WithoutLength, Writeable, Writer};
+use crate::offers::signer::{Metadata, MetadataMaterial, self};
+use crate::util::ser::{SeekReadable, Readable, 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")]
use std::time::SystemTime;
+pub(super) const IV_BYTES: &[u8; IV_LEN] = b"LDK Refund ~~~~~";
+
+/// Builds a [`Refund`] for the "offer for money" flow.
+///
+/// See [module-level documentation] for usage.
+///
+/// This is not exported to bindings users as builder patterns don't map outside of move semantics.
+///
+/// [module-level documentation]: self
+pub struct RefundBuilder<'a, T: secp256k1::Signing> {
+ refund: RefundContents,
+ secp_ctx: Option<&'a Secp256k1<T>>,
+}
+
/// Builds a [`Refund`] for the "offer for money" flow.
///
/// See [module-level documentation] for usage.
///
/// [module-level documentation]: self
-pub struct RefundBuilder {
+#[cfg(c_bindings)]
+#[derive(Clone)]
+pub struct RefundMaybeWithDerivedMetadataBuilder<'a> {
refund: RefundContents,
+ secp_ctx: Option<&'a Secp256k1<secp256k1::All>>,
}
-impl RefundBuilder {
+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
- /// [`Refund::amount_msats`].
+ /// Additionally, sets the required (empty) [`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> {
+ metadata: Vec<u8>, payer_id: PublicKey, amount_msats: u64
+ ) -> Result<Self, Bolt12SemanticError> {
if amount_msats > MAX_VALUE_MSAT {
- return Err(SemanticError::InvalidAmount);
+ return Err(Bolt12SemanticError::InvalidAmount);
}
- let refund = RefundContents {
- payer: PayerContents(metadata), description, absolute_expiry: None, issuer: None,
- paths: None, chain: None, amount_msats, features: InvoiceRequestFeatures::empty(),
- quantity: None, payer_id, payer_note: None,
- };
+ let metadata = Metadata::Bytes(metadata);
+ Ok(Self {
+ refund: RefundContents {
+ payer: PayerContents(metadata), description: String::new(), absolute_expiry: None,
+ issuer: None, chain: None, amount_msats, features: InvoiceRequestFeatures::empty(),
+ quantity: None, payer_id, payer_note: None, paths: None,
+ },
+ secp_ctx: None,
+ })
+ }
+} }
+
+macro_rules! refund_builder_methods { (
+ $self: ident, $self_type: ty, $return_type: ty, $return_value: expr, $secp_context: ty $(, $self_mut: tt)?
+) => {
+ /// Similar to [`RefundBuilder::new`] except, if [`RefundBuilder::path`] is called, the payer id
+ /// is derived from the given [`ExpandedKey`] and nonce. This provides sender privacy by using a
+ /// different payer id for each refund, assuming a different nonce is used. Otherwise, the
+ /// provided `node_id` is used for the payer id.
+ ///
+ /// Also, sets the metadata when [`RefundBuilder::build`] is called such that it can be used to
+ /// verify that an [`InvoiceRequest`] was produced for the refund given an [`ExpandedKey`].
+ ///
+ /// The `payment_id` is encrypted in the metadata and should be unique. This ensures that only
+ /// one invoice will be paid for the refund and that payments can be uniquely identified.
+ ///
+ /// [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest
+ /// [`ExpandedKey`]: crate::ln::inbound_payment::ExpandedKey
+ pub fn deriving_payer_id<ES: Deref>(
+ node_id: PublicKey, expanded_key: &ExpandedKey, entropy_source: ES,
+ secp_ctx: &'a Secp256k1<$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);
+ }
- Ok(RefundBuilder { refund })
+ let nonce = Nonce::from_entropy_source(entropy_source);
+ 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 {
+ payer: PayerContents(metadata), description: String::new(), absolute_expiry: None,
+ issuer: None, chain: None, amount_msats, features: InvoiceRequestFeatures::empty(),
+ quantity: None, payer_id: node_id, payer_note: None, paths: None,
+ },
+ secp_ctx: Some(secp_ctx),
+ })
+ }
+
+ /// Sets the [`Refund::description`].
+ ///
+ /// Successive calls to this method will override the previous setting.
+ pub fn description($($self_mut)* $self: $self_type, description: String) -> $return_type {
+ $self.refund.description = description;
+ $return_value
}
/// Sets the [`Refund::absolute_expiry`] as seconds since the Unix epoch. Any expiry that has
/// already passed is valid and can be checked for using [`Refund::is_expired`].
///
/// Successive calls to this method will override the previous setting.
- pub fn absolute_expiry(mut self, absolute_expiry: Duration) -> Self {
- self.refund.absolute_expiry = Some(absolute_expiry);
- self
+ pub fn absolute_expiry($($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 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() {
+ metadata = metadata.without_keys();
+ }
+
+ 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);
+ metadata = derived_metadata;
+ if let Some(keys) = keys {
+ $self.refund.payer_id = keys.public_key();
+ }
+
+ $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,
- contents: self.refund,
+ #[cfg(not(c_bindings))]
+ contents: $self.refund,
+ #[cfg(c_bindings)]
+ contents: $self.refund.clone(),
})
}
-}
+} }
#[cfg(test)]
-impl RefundBuilder {
- fn features_unchecked(mut self, features: InvoiceRequestFeatures) -> Self {
- self.refund.features = features;
- self
+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;
+ $return_value
+ }
+
+ #[cfg_attr(c_bindings, allow(dead_code))]
+ fn features_unchecked($($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!();
+}
+
+impl<'a, T: secp256k1::Signing> RefundBuilder<'a, T> {
+ 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`].
+#[cfg(c_bindings)]
+impl<'a> From<RefundMaybeWithDerivedMetadataBuilder<'a>>
+for RefundBuilder<'a, secp256k1::All> {
+ fn from(builder: RefundMaybeWithDerivedMetadataBuilder<'a>) -> Self {
+ let RefundMaybeWithDerivedMetadataBuilder { refund, secp_ctx } = builder;
+
+ Self { refund, secp_ctx }
+ }
+}
+
+/// 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, PartialEq)]
+#[derive(Clone, Debug)]
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
-#[derive(Clone, Debug, PartialEq)]
+/// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
+#[derive(Clone, Debug)]
+#[cfg_attr(test, derive(PartialEq))]
pub(super) struct RefundContents {
payer: PayerContents,
// offer fields
description: String,
absolute_expiry: Option<Duration>,
issuer: Option<String>,
- paths: Option<Vec<BlindedPath>>,
// invoice_request fields
chain: Option<ChainHash>,
amount_msats: u64,
quantity: Option<u64>,
payer_id: PublicKey,
payer_note: Option<String>,
+ paths: Option<Vec<BlindedPath>>,
}
impl Refund {
/// A complete description of the purpose of the refund. Intended to be displayed to the user
/// but with the caveat that it has not been verified in any way.
pub fn description(&self) -> PrintableString {
- PrintableString(&self.contents.description)
+ self.contents.description()
}
/// Duration since the Unix epoch when an invoice should no longer be sent.
///
/// 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] {
- &self.contents.payer.0
+ 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()
}
+}
- /// Creates an [`Invoice`] for the refund with the given required fields and using the
+macro_rules! respond_with_explicit_signing_pubkey_methods { ($self: ident, $builder: ty) => {
+ /// Creates an [`InvoiceBuilder`] for the refund with the given required fields and using the
/// [`Duration`] since [`std::time::SystemTime::UNIX_EPOCH`] as the creation time.
///
/// See [`Refund::respond_with_no_std`] for further details where the aforementioned creation
/// time is used for the `created_at` parameter.
///
- /// [`Invoice`]: crate::offers::invoice::Invoice
+ /// This is not exported to bindings users as builder patterns don't map outside of move semantics.
+ ///
/// [`Duration`]: core::time::Duration
#[cfg(feature = "std")]
pub fn respond_with(
- &self, payment_paths: Vec<(BlindedPath, BlindedPayInfo)>, payment_hash: PaymentHash,
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
signing_pubkey: PublicKey,
- ) -> Result<InvoiceBuilder, 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)
+ $self.respond_with_no_std(payment_paths, payment_hash, signing_pubkey, created_at)
}
- /// Creates an [`Invoice`] for the refund with the given required fields.
+ /// Creates an [`InvoiceBuilder`] for the refund with the given required fields.
///
/// Unless [`InvoiceBuilder::relative_expiry`] is set, the invoice will expire two hours after
- /// `created_at`, which is used to set [`Invoice::created_at`]. Useful for `no-std` builds where
- /// [`std::time::SystemTime`] is not available.
+ /// `created_at`, which is used to set [`Bolt12Invoice::created_at`]. Useful for `no-std` builds
+ /// where [`std::time::SystemTime`] is not available.
///
/// The caller is expected to remember the preimage of `payment_hash` in order to
/// claim a payment for the invoice.
///
/// Errors if the request contains unknown required features.
///
- /// [`Invoice`]: crate::offers::invoice::Invoice
- /// [`Invoice::created_at`]: crate::offers::invoice::Invoice::created_at
+ /// This is not exported to bindings users as builder patterns don't map outside of move semantics.
+ ///
+ /// [`Bolt12Invoice::created_at`]: crate::offers::invoice::Bolt12Invoice::created_at
pub fn respond_with_no_std(
- &self, payment_paths: Vec<(BlindedPath, BlindedPayInfo)>, payment_hash: PaymentHash,
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
signing_pubkey: PublicKey, created_at: Duration
- ) -> Result<InvoiceBuilder, 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($self, payment_paths, created_at, payment_hash, signing_pubkey)
}
+} }
- #[cfg(test)]
+macro_rules! respond_with_derived_signing_pubkey_methods { ($self: ident, $builder: ty) => {
+ /// Creates an [`InvoiceBuilder`] for the refund using the given required fields and that uses
+ /// derived signing keys to sign the [`Bolt12Invoice`].
+ ///
+ /// See [`Refund::respond_with`] for further details.
+ ///
+ /// This is not exported to bindings users as builder patterns don't map outside of move semantics.
+ ///
+ /// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
+ #[cfg(feature = "std")]
+ pub fn respond_using_derived_keys<ES: Deref>(
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
+ expanded_key: &ExpandedKey, entropy_source: ES
+ ) -> Result<$builder, Bolt12SemanticError>
+ where
+ ES::Target: EntropySource,
+ {
+ let created_at = std::time::SystemTime::now()
+ .duration_since(std::time::SystemTime::UNIX_EPOCH)
+ .expect("SystemTime::now() should come after SystemTime::UNIX_EPOCH");
+
+ $self.respond_using_derived_keys_no_std(
+ payment_paths, payment_hash, created_at, expanded_key, entropy_source
+ )
+ }
+
+ /// Creates an [`InvoiceBuilder`] for the refund using the given required fields and that uses
+ /// derived signing keys to sign the [`Bolt12Invoice`].
+ ///
+ /// See [`Refund::respond_with_no_std`] for further details.
+ ///
+ /// This is not exported to bindings users as builder patterns don't map outside of move semantics.
+ ///
+ /// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
+ pub fn respond_using_derived_keys_no_std<ES: Deref>(
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
+ created_at: core::time::Duration, expanded_key: &ExpandedKey, entropy_source: ES
+ ) -> Result<$builder, Bolt12SemanticError>
+ where
+ ES::Target: EntropySource,
+ {
+ if $self.features().requires_unknown_bits() {
+ return Err(Bolt12SemanticError::UnknownRequiredFeatures);
+ }
+
+ let nonce = Nonce::from_entropy_source(entropy_source);
+ let keys = signer::derive_keys(nonce, expanded_key);
+ <$builder>::for_refund_using_keys($self, payment_paths, created_at, payment_hash, keys)
+ }
+} }
+
+#[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] {
+ self.payer.0.as_bytes().map(|bytes| bytes.as_slice()).unwrap_or(&[])
}
pub(super) fn chain(&self) -> ChainHash {
ChainHash::using_genesis_block(Network::Bitcoin)
}
+ pub fn amount_msats(&self) -> u64 {
+ self.amount_msats
+ }
+
+ /// 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: Some(&self.payer.0),
+ metadata: self.payer.0.as_bytes(),
};
let offer = OfferTlvStreamRef {
description: Some(&self.description),
features: None,
absolute_expiry: self.absolute_expiry.map(|duration| duration.as_secs()),
- paths: self.paths.as_ref(),
+ paths: None,
issuer: self.issuer.as_ref(),
quantity_max: None,
node_id: None,
quantity: self.quantity,
payer_id: Some(&self.payer_id),
payer_note: self.payer_note.as_ref(),
+ paths: self.paths.as_ref(),
};
(payer, offer, invoice_request)
}
}
+impl Readable for Refund {
+ fn read<R: io::Read>(reader: &mut R) -> Result<Self, DecodeError> {
+ let bytes: WithoutLength<Vec<u8>> = Readable::read(reader)?;
+ Self::try_from(bytes.0).map_err(|_| DecodeError::InvalidValue)
+ }
+}
+
impl Writeable for Refund {
fn write<W: Writer>(&self, writer: &mut W) -> Result<(), io::Error> {
WithoutLength(&self.bytes).write(writer)
}
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 (
PayerTlvStream { metadata: payer_metadata },
OfferTlvStream {
chains, metadata, currency, amount: offer_amount, description,
- features: offer_features, absolute_expiry, paths, issuer, quantity_max, node_id,
+ features: offer_features, absolute_expiry, paths: offer_paths, issuer, quantity_max,
+ node_id,
+ },
+ InvoiceRequestTlvStream {
+ chain, amount, features, quantity, payer_id, payer_note, paths
},
- InvoiceRequestTlvStream { chain, amount, features, quantity, payer_id, payer_note },
) = tlv_stream;
let payer = match payer_metadata {
- None => return Err(SemanticError::MissingPayerMetadata),
- Some(metadata) => PayerContents(metadata),
+ 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 offer_paths.is_some() {
+ return Err(Bolt12SemanticError::UnexpectedPaths);
+ }
+
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,
};
Ok(RefundContents {
- payer, description, absolute_expiry, issuer, paths, chain, amount_msats, features,
- quantity, payer_id, payer_note,
+ payer, description, absolute_expiry, issuer, chain, amount_msats, features, quantity,
+ payer_id, payer_note, paths,
})
}
}
#[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, PublicKey, Secp256k1, SecretKey};
- use core::convert::TryFrom;
+ use bitcoin::network::Network;
+ use bitcoin::secp256k1::{Keypair, Secp256k1, SecretKey};
+
use core::time::Duration;
+
+ use crate::blinded_path::{BlindedHop, BlindedPath, IntroductionNode};
+ 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::onion_message::{BlindedHop, BlindedPath};
+ use crate::offers::test_utils::*;
use crate::util::ser::{BigSize, Writeable};
use crate::util::string::PrintableString;
-
- fn payer_pubkey() -> PublicKey {
- let secp_ctx = Secp256k1::new();
- KeyPair::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap()).public_key()
- }
-
- fn pubkey(byte: u8) -> PublicKey {
- let secp_ctx = Secp256k1::new();
- PublicKey::from_secret_key(&secp_ctx, &privkey(byte))
- }
-
- fn privkey(byte: u8) -> SecretKey {
- SecretKey::from_slice(&[byte; 32]).unwrap()
- }
+ use crate::prelude::*;
trait ToBytes {
fn to_bytes(&self) -> Vec<u8>;
#[test]
fn builds_refund_with_defaults() {
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.build().unwrap();
let mut buffer = Vec::new();
refund.write(&mut buffer).unwrap();
assert_eq!(refund.bytes, buffer.as_slice());
- assert_eq!(refund.metadata(), &[1; 32]);
- assert_eq!(refund.description(), PrintableString("foo"));
+ assert_eq!(refund.payer_metadata(), &[1; 32]);
+ assert_eq!(refund.description(), PrintableString(""));
assert_eq!(refund.absolute_expiry(), None);
#[cfg(feature = "std")]
assert!(!refund.is_expired());
metadata: None,
currency: None,
amount: None,
- description: Some(&String::from("foo")),
+ description: Some(&String::from("")),
features: None,
absolute_expiry: None,
paths: None,
quantity: None,
payer_id: Some(&payer_pubkey()),
payer_note: None,
+ paths: None,
},
),
);
#[test]
fn fails_building_refund_with_invalid_amount() {
- match RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), MAX_VALUE_MSAT + 1) {
+ match RefundBuilder::new(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),
+ }
+ }
+
+ #[test]
+ fn builds_refund_with_metadata_derived() {
+ let node_id = payer_pubkey();
+ 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(node_id, &expanded_key, &entropy, &secp_ctx, 1000, payment_id)
+ .unwrap()
+ .build().unwrap();
+ assert_eq!(refund.payer_id(), node_id);
+
+ // Fails verification with altered fields
+ let invoice = refund
+ .respond_with_no_std(payment_paths(), payment_hash(), recipient_pubkey(), now())
+ .unwrap()
+ .build().unwrap()
+ .sign(recipient_sign).unwrap();
+ 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);
+
+ let mut encoded_refund = Vec::new();
+ tlv_stream.write(&mut encoded_refund).unwrap();
+
+ let invoice = Refund::try_from(encoded_refund).unwrap()
+ .respond_with_no_std(payment_paths(), payment_hash(), recipient_pubkey(), now())
+ .unwrap()
+ .build().unwrap()
+ .sign(recipient_sign).unwrap();
+ assert!(invoice.verify(&expanded_key, &secp_ctx).is_err());
+
+ // Fails verification with altered metadata
+ let mut tlv_stream = refund.as_tlv_stream();
+ let metadata = tlv_stream.0.metadata.unwrap().iter().copied().rev().collect();
+ tlv_stream.0.metadata = Some(&metadata);
+
+ let mut encoded_refund = Vec::new();
+ tlv_stream.write(&mut encoded_refund).unwrap();
+
+ let invoice = Refund::try_from(encoded_refund).unwrap()
+ .respond_with_no_std(payment_paths(), payment_hash(), recipient_pubkey(), now())
+ .unwrap()
+ .build().unwrap()
+ .sign(recipient_sign).unwrap();
+ assert!(invoice.verify(&expanded_key, &secp_ctx).is_err());
+ }
+
+ #[test]
+ fn builds_refund_with_derived_payer_id() {
+ let node_id = payer_pubkey();
+ 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: IntroductionNode::NodeId(pubkey(40)),
+ blinding_point: pubkey(41),
+ blinded_hops: vec![
+ BlindedHop { blinded_node_id: pubkey(43), encrypted_payload: vec![0; 43] },
+ BlindedHop { blinded_node_id: node_id, encrypted_payload: vec![0; 44] },
+ ],
+ };
+
+ let refund = RefundBuilder
+ ::deriving_payer_id(node_id, &expanded_key, &entropy, &secp_ctx, 1000, payment_id)
+ .unwrap()
+ .path(blinded_path)
+ .build().unwrap();
+ assert_ne!(refund.payer_id(), node_id);
+
+ let invoice = refund
+ .respond_with_no_std(payment_paths(), payment_hash(), recipient_pubkey(), now())
+ .unwrap()
+ .build().unwrap()
+ .sign(recipient_sign).unwrap();
+ 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();
+ tlv_stream.2.amount = Some(2000);
+
+ let mut encoded_refund = Vec::new();
+ tlv_stream.write(&mut encoded_refund).unwrap();
+
+ let invoice = Refund::try_from(encoded_refund).unwrap()
+ .respond_with_no_std(payment_paths(), payment_hash(), recipient_pubkey(), now())
+ .unwrap()
+ .build().unwrap()
+ .sign(recipient_sign).unwrap();
+ assert!(invoice.verify(&expanded_key, &secp_ctx).is_err());
+
+ // Fails verification with altered payer_id
+ let mut tlv_stream = refund.as_tlv_stream();
+ let payer_id = pubkey(1);
+ tlv_stream.2.payer_id = Some(&payer_id);
+
+ let mut encoded_refund = Vec::new();
+ tlv_stream.write(&mut encoded_refund).unwrap();
+
+ let invoice = Refund::try_from(encoded_refund).unwrap()
+ .respond_with_no_std(payment_paths(), payment_hash(), recipient_pubkey(), now())
+ .unwrap()
+ .build().unwrap()
+ .sign(recipient_sign).unwrap();
+ 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()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.absolute_expiry(future_expiry)
.build()
.unwrap();
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 refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.absolute_expiry(future_expiry)
.absolute_expiry(past_expiry)
.build()
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()));
}
fn builds_refund_with_paths() {
let paths = vec![
BlindedPath {
- introduction_node_id: pubkey(40),
+ introduction_node: IntroductionNode::NodeId(pubkey(40)),
blinding_point: pubkey(41),
blinded_hops: vec![
BlindedHop { blinded_node_id: pubkey(43), encrypted_payload: vec![0; 43] },
],
},
BlindedPath {
- introduction_node_id: pubkey(40),
+ introduction_node: IntroductionNode::NodeId(pubkey(40)),
blinding_point: pubkey(41),
blinded_hops: vec![
BlindedHop { blinded_node_id: pubkey(45), encrypted_payload: vec![0; 45] },
},
];
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.path(paths[0].clone())
.path(paths[1].clone())
.build()
.unwrap();
- let (_, offer_tlv_stream, invoice_request_tlv_stream) = refund.as_tlv_stream();
- assert_eq!(refund.paths(), paths.as_slice());
+ let (_, _, invoice_request_tlv_stream) = refund.as_tlv_stream();
assert_eq!(refund.payer_id(), pubkey(42));
+ assert_eq!(refund.paths(), paths.as_slice());
assert_ne!(pubkey(42), pubkey(44));
- assert_eq!(offer_tlv_stream.paths, Some(&paths));
assert_eq!(invoice_request_tlv_stream.payer_id, Some(&pubkey(42)));
+ assert_eq!(invoice_request_tlv_stream.paths, Some(&paths));
}
#[test]
fn builds_refund_with_issuer() {
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.issuer("bar".into())
.build()
.unwrap();
assert_eq!(refund.issuer(), Some(PrintableString("bar")));
assert_eq!(tlv_stream.issuer, Some(&String::from("bar")));
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.issuer("bar".into())
.issuer("baz".into())
.build()
let mainnet = ChainHash::using_genesis_block(Network::Bitcoin);
let testnet = ChainHash::using_genesis_block(Network::Testnet);
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.chain(Network::Bitcoin)
.build().unwrap();
let (_, _, tlv_stream) = refund.as_tlv_stream();
assert_eq!(refund.chain(), mainnet);
assert_eq!(tlv_stream.chain, None);
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.chain(Network::Testnet)
.build().unwrap();
let (_, _, tlv_stream) = refund.as_tlv_stream();
assert_eq!(refund.chain(), testnet);
assert_eq!(tlv_stream.chain, Some(&testnet));
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.chain(Network::Regtest)
.chain(Network::Testnet)
.build().unwrap();
#[test]
fn builds_refund_with_quantity() {
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.quantity(10)
.build().unwrap();
let (_, _, tlv_stream) = refund.as_tlv_stream();
assert_eq!(refund.quantity(), Some(10));
assert_eq!(tlv_stream.quantity, Some(10));
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.quantity(10)
.quantity(1)
.build().unwrap();
#[test]
fn builds_refund_with_payer_note() {
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.payer_note("bar".into())
.build().unwrap();
let (_, _, tlv_stream) = refund.as_tlv_stream();
assert_eq!(refund.payer_note(), Some(PrintableString("bar")));
assert_eq!(tlv_stream.payer_note, Some(&String::from("bar")));
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.payer_note("bar".into())
.payer_note("baz".into())
.build().unwrap();
assert_eq!(tlv_stream.payer_note, Some(&String::from("baz")));
}
+ #[test]
+ fn fails_responding_with_unknown_required_features() {
+ match RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
+ .features_unchecked(InvoiceRequestFeatures::unknown())
+ .build().unwrap()
+ .respond_with_no_std(payment_paths(), payment_hash(), recipient_pubkey(), now())
+ {
+ Ok(_) => panic!("expected error"),
+ Err(e) => assert_eq!(e, Bolt12SemanticError::UnknownRequiredFeatures),
+ }
+ }
+
#[test]
fn parses_refund_with_metadata() {
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.build().unwrap();
if let Err(e) = refund.to_string().parse::<Refund>() {
panic!("error parsing refund: {:?}", e);
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));
},
}
}
#[test]
fn parses_refund_with_description() {
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.build().unwrap();
if let Err(e) = refund.to_string().parse::<Refund>() {
panic!("error parsing refund: {:?}", e);
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));
},
}
}
#[test]
fn parses_refund_with_amount() {
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.build().unwrap();
if let Err(e) = refund.to_string().parse::<Refund>() {
panic!("error parsing refund: {:?}", e);
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));
},
}
}
#[test]
fn parses_refund_with_payer_id() {
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.build().unwrap();
if let Err(e) = refund.to_string().parse::<Refund>() {
panic!("error parsing refund: {:?}", e);
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));
},
}
}
let past_expiry = Duration::from_secs(0);
let paths = vec![
BlindedPath {
- introduction_node_id: pubkey(40),
+ introduction_node: IntroductionNode::NodeId(pubkey(40)),
blinding_point: pubkey(41),
blinded_hops: vec![
BlindedHop { blinded_node_id: pubkey(43), encrypted_payload: vec![0; 43] },
],
},
BlindedPath {
- introduction_node_id: pubkey(40),
+ introduction_node: IntroductionNode::NodeId(pubkey(40)),
blinding_point: pubkey(41),
blinded_hops: vec![
BlindedHop { blinded_node_id: pubkey(45), encrypted_payload: vec![0; 45] },
},
];
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.absolute_expiry(past_expiry)
.issuer("bar".into())
.path(paths[0].clone())
#[test]
fn fails_parsing_refund_with_unexpected_fields() {
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], payer_pubkey(), 1000).unwrap()
+ let refund = RefundBuilder::new(vec![1; 32], payer_pubkey(), 1000).unwrap()
.build().unwrap();
if let Err(e) = refund.to_string().parse::<Refund>() {
panic!("error parsing refund: {:?}", e);
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));
},
}
}
#[test]
fn fails_parsing_refund_with_extra_tlv_records() {
let secp_ctx = Secp256k1::new();
- let keys = KeyPair::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
- let refund = RefundBuilder::new("foo".into(), vec![1; 32], keys.public_key(), 1000).unwrap()
+ let keys = Keypair::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
+ let refund = RefundBuilder::new(vec![1; 32], keys.public_key(), 1000).unwrap()
.build().unwrap();
let mut encoded_refund = Vec::new();
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)),
}
}
}