X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Foffers%2Foffer.rs;h=66dca85cd94c97d6f5b6c594c24d07114d859860;hb=caafcedf3fc40fc6253261218c25b254dd955a82;hp=d2918e809429d8f5db858b52930e8e19634e869e;hpb=e1a6bc3cadb8c89ba38afb5846fb80f349d99449;p=rust-lightning diff --git a/lightning/src/offers/offer.rs b/lightning/src/offers/offer.rs index d2918e80..66dca85c 100644 --- a/lightning/src/offers/offer.rs +++ b/lightning/src/offers/offer.rs @@ -13,6 +13,8 @@ //! published as a QR code to be scanned by a customer. The customer uses the offer to request an //! invoice from the merchant to be paid. //! +//! # Example +//! //! ``` //! extern crate bitcoin; //! extern crate core; @@ -24,10 +26,10 @@ //! //! use bitcoin::secp256k1::{KeyPair, PublicKey, Secp256k1, SecretKey}; //! use lightning::offers::offer::{Offer, OfferBuilder, Quantity}; -//! use lightning::offers::parse::ParseError; +//! use lightning::offers::parse::Bolt12ParseError; //! use lightning::util::ser::{Readable, Writeable}; //! -//! # use lightning::onion_message::BlindedPath; +//! # use lightning::blinded_path::BlindedPath; //! # #[cfg(feature = "std")] //! # use std::time::SystemTime; //! # @@ -35,7 +37,7 @@ //! # 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); @@ -65,6 +67,14 @@ //! # Ok(()) //! # } //! ``` +//! +//! # Note +//! +//! If constructing an [`Offer`] for use with a [`ChannelManager`], use +//! [`ChannelManager::create_offer_builder`] instead of [`OfferBuilder::new`]. +//! +//! [`ChannelManager`]: crate::ln::channelmanager::ChannelManager +//! [`ChannelManager::create_offer_builder`]: crate::ln::channelmanager::ChannelManager::create_offer_builder use bitcoin::blockdata::constants::ChainHash; use bitcoin::network::constants::Network; @@ -74,16 +84,17 @@ use core::num::NonZeroU64; use core::ops::Deref; use core::str::FromStr; use core::time::Duration; -use crate::chain::keysinterface::EntropySource; +use crate::sign::EntropySource; use crate::io; +use crate::blinded_path::BlindedPath; +use crate::ln::channelmanager::PaymentId; use crate::ln::features::OfferFeatures; use crate::ln::inbound_payment::{ExpandedKey, IV_LEN, Nonce}; use crate::ln::msgs::MAX_VALUE_MSAT; use crate::offers::invoice_request::{DerivedPayerId, ExplicitPayerId, InvoiceRequestBuilder}; use crate::offers::merkle::TlvStream; -use crate::offers::parse::{Bech32Encode, ParseError, ParsedMessage, SemanticError}; +use crate::offers::parse::{Bech32Encode, Bolt12ParseError, Bolt12SemanticError, ParsedMessage}; use crate::offers::signer::{Metadata, MetadataMaterial, self}; -use crate::onion_message::BlindedPath; use crate::util::ser::{HighZeroBytesDroppedBigSize, WithoutLength, Writeable, Writer}; use crate::util::string::PrintableString; @@ -98,6 +109,8 @@ pub(super) const IV_BYTES: &[u8; IV_LEN] = b"LDK Offer ~~~~~~"; /// /// 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 OfferBuilder<'a, M: MetadataStrategy, T: secp256k1::Signing> { offer: OfferContents, @@ -106,12 +119,18 @@ pub struct OfferBuilder<'a, M: MetadataStrategy, T: secp256k1::Signing> { } /// Indicates how [`Offer::metadata`] may be set. +/// +/// This is not exported to bindings users as builder patterns don't map outside of move semantics. pub trait MetadataStrategy {} /// [`Offer::metadata`] may be explicitly set or left empty. +/// +/// This is not exported to bindings users as builder patterns don't map outside of move semantics. pub struct ExplicitMetadata {} /// [`Offer::metadata`] will be derived. +/// +/// This is not exported to bindings users as builder patterns don't map outside of move semantics. pub struct DerivedMetadata {} impl MetadataStrategy for ExplicitMetadata {} @@ -123,6 +142,14 @@ impl<'a> OfferBuilder<'a, ExplicitMetadata, secp256k1::SignOnly> { /// while the offer is valid. /// /// Use a different pubkey per offer to avoid correlating offers. + /// + /// # Note + /// + /// If constructing an [`Offer`] for use with a [`ChannelManager`], use + /// [`ChannelManager::create_offer_builder`] instead of [`OfferBuilder::new`]. + /// + /// [`ChannelManager`]: crate::ln::channelmanager::ChannelManager + /// [`ChannelManager::create_offer_builder`]: crate::ln::channelmanager::ChannelManager::create_offer_builder pub fn new(description: String, signing_pubkey: PublicKey) -> Self { OfferBuilder { offer: OfferContents { @@ -138,7 +165,7 @@ impl<'a> OfferBuilder<'a, ExplicitMetadata, secp256k1::SignOnly> { /// Sets the [`Offer::metadata`] to the given bytes. /// /// Successive calls to this method will override the previous setting. - pub fn metadata(mut self, metadata: Vec) -> Result { + pub fn metadata(mut self, metadata: Vec) -> Result { self.offer.metadata = Some(Metadata::Bytes(metadata)); Ok(self) } @@ -161,7 +188,7 @@ impl<'a, T: secp256k1::Signing> OfferBuilder<'a, DerivedMetadata, T> { secp_ctx: &'a Secp256k1 ) -> Self where ES::Target: EntropySource { let nonce = Nonce::from_entropy_source(entropy_source); - let derivation_material = MetadataMaterial::new(nonce, expanded_key, IV_BYTES); + let derivation_material = MetadataMaterial::new(nonce, expanded_key, IV_BYTES, None); let metadata = Metadata::DerivedSigningPubkey(derivation_material); OfferBuilder { offer: OfferContents { @@ -182,9 +209,18 @@ impl<'a, M: MetadataStrategy, T: secp256k1::Signing> OfferBuilder<'a, M, T> { /// See [`Offer::chains`] on how this relates to the payment currency. /// /// Successive calls to this method will add another chain hash. - pub fn chain(mut self, network: Network) -> Self { + pub fn chain(self, network: Network) -> Self { + self.chain_hash(ChainHash::using_genesis_block(network)) + } + + /// Adds the [`ChainHash`] to [`Offer::chains`]. If not called, the chain hash of + /// [`Network::Bitcoin`] is assumed to be the only one supported. + /// + /// See [`Offer::chains`] on how this relates to the payment currency. + /// + /// Successive calls to this method will add another chain hash. + pub(crate) fn chain_hash(mut self, chain: ChainHash) -> Self { let chains = self.offer.chains.get_or_insert_with(Vec::new); - let chain = ChainHash::using_genesis_block(network); if !chains.contains(&chain) { chains.push(chain); } @@ -244,14 +280,14 @@ impl<'a, M: MetadataStrategy, T: secp256k1::Signing> OfferBuilder<'a, M, T> { } /// Builds an [`Offer`] from the builder's settings. - pub fn build(mut self) -> Result { + pub fn build(mut self) -> Result { match self.offer.amount { Some(Amount::Bitcoin { amount_msats }) => { if amount_msats > MAX_VALUE_MSAT { - return Err(SemanticError::InvalidAmount); + return Err(Bolt12SemanticError::InvalidAmount); } }, - Some(Amount::Currency { .. }) => return Err(SemanticError::UnsupportedCurrency), + Some(Amount::Currency { .. }) => return Err(Bolt12SemanticError::UnsupportedCurrency), None => {}, } @@ -275,7 +311,7 @@ impl<'a, M: MetadataStrategy, T: secp256k1::Signing> OfferBuilder<'a, M, T> { let mut tlv_stream = self.offer.as_tlv_stream(); debug_assert_eq!(tlv_stream.metadata, None); tlv_stream.metadata = None; - if metadata.derives_keys() { + if metadata.derives_recipient_keys() { tlv_stream.node_id = None; } @@ -311,8 +347,8 @@ impl<'a, M: MetadataStrategy, T: secp256k1::Signing> OfferBuilder<'a, M, T> { /// An `Offer` is a potentially long-lived proposal for payment of a good or service. /// /// An offer is a precursor to an [`InvoiceRequest`]. A merchant publishes an offer from which a -/// customer may request an [`Invoice`] for a specific quantity and using an amount sufficient to -/// cover that quantity (i.e., at least `quantity * amount`). See [`Offer::amount`]. +/// customer may request an [`Bolt12Invoice`] for a specific quantity and using an amount sufficient +/// to cover that quantity (i.e., at least `quantity * amount`). See [`Offer::amount`]. /// /// Offers may be denominated in currency other than bitcoin but are ultimately paid using the /// latter. @@ -320,7 +356,7 @@ impl<'a, M: MetadataStrategy, T: secp256k1::Signing> OfferBuilder<'a, M, T> { /// Through the use of [`BlindedPath`]s, offers provide recipient privacy. /// /// [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest -/// [`Invoice`]: crate::offers::invoice::Invoice +/// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice #[derive(Clone, Debug)] #[cfg_attr(test, derive(PartialEq))] pub struct Offer { @@ -330,10 +366,11 @@ pub struct Offer { pub(super) contents: OfferContents, } -/// The contents of an [`Offer`], which may be shared with an [`InvoiceRequest`] or an [`Invoice`]. +/// The contents of an [`Offer`], which may be shared with an [`InvoiceRequest`] or a +/// [`Bolt12Invoice`]. /// /// [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest -/// [`Invoice`]: crate::offers::invoice::Invoice +/// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice #[derive(Clone, Debug)] #[cfg_attr(test, derive(PartialEq))] pub(super) struct OfferContents { @@ -349,77 +386,91 @@ pub(super) struct OfferContents { signing_pubkey: PublicKey, } -impl Offer { +macro_rules! offer_accessors { ($self: ident, $contents: expr) => { // TODO: Return a slice once ChainHash has constants. // - https://github.com/rust-bitcoin/rust-bitcoin/pull/1283 // - https://github.com/rust-bitcoin/rust-bitcoin/pull/1286 /// The chains that may be used when paying a requested invoice (e.g., bitcoin mainnet). /// Payments must be denominated in units of the minimal lightning-payable unit (e.g., msats) /// for the selected chain. - pub fn chains(&self) -> Vec { - self.contents.chains() - } - - pub(super) fn implied_chain(&self) -> ChainHash { - self.contents.implied_chain() - } - - /// Returns whether the given chain is supported by the offer. - pub fn supports_chain(&self, chain: ChainHash) -> bool { - self.contents.supports_chain(chain) + pub fn chains(&$self) -> Vec { + $contents.chains() } // TODO: Link to corresponding method in `InvoiceRequest`. /// Opaque bytes set by the originator. Useful for authentication and validating fields since it /// is reflected in `invoice_request` messages along with all the other fields from the `offer`. - pub fn metadata(&self) -> Option<&Vec> { - self.contents.metadata() + pub fn metadata(&$self) -> Option<&Vec> { + $contents.metadata() } /// The minimum amount required for a successful payment of a single item. - pub fn amount(&self) -> Option<&Amount> { - self.contents.amount() + pub fn amount(&$self) -> Option<&$crate::offers::offer::Amount> { + $contents.amount() } /// A complete description of the purpose of the payment. Intended to be displayed to the user /// but with the caveat that it has not been verified in any way. - pub fn description(&self) -> PrintableString { - PrintableString(&self.contents.description) + pub fn description(&$self) -> $crate::util::string::PrintableString { + $contents.description() } /// Features pertaining to the offer. - pub fn features(&self) -> &OfferFeatures { - &self.contents.features + pub fn offer_features(&$self) -> &$crate::ln::features::OfferFeatures { + &$contents.features() } /// Duration since the Unix epoch when an invoice should no longer be requested. /// /// If `None`, the offer does not expire. - pub fn absolute_expiry(&self) -> Option { - self.contents.absolute_expiry - } - - /// Whether the offer has expired. - #[cfg(feature = "std")] - pub fn is_expired(&self) -> bool { - self.contents.is_expired() + pub fn absolute_expiry(&$self) -> Option { + $contents.absolute_expiry() } /// The issuer of the offer, possibly beginning with `user@domain` or `domain`. Intended to be /// displayed to the user but with the caveat that it has not been verified in any way. - pub fn issuer(&self) -> Option { - self.contents.issuer.as_ref().map(|issuer| PrintableString(issuer.as_str())) + pub fn issuer(&$self) -> Option<$crate::util::string::PrintableString> { + $contents.issuer() } /// Paths to the recipient originating from publicly reachable nodes. Blinded paths provide /// recipient privacy by obfuscating its node id. - pub fn paths(&self) -> &[BlindedPath] { - self.contents.paths.as_ref().map(|paths| paths.as_slice()).unwrap_or(&[]) + pub fn paths(&$self) -> &[$crate::blinded_path::BlindedPath] { + $contents.paths() } /// The quantity of items supported. - pub fn supported_quantity(&self) -> Quantity { - self.contents.supported_quantity() + pub fn supported_quantity(&$self) -> $crate::offers::offer::Quantity { + $contents.supported_quantity() + } + + /// The public key used by the recipient to sign invoices. + pub fn signing_pubkey(&$self) -> bitcoin::secp256k1::PublicKey { + $contents.signing_pubkey() + } +} } + +impl Offer { + offer_accessors!(self, self.contents); + + pub(super) fn implied_chain(&self) -> ChainHash { + self.contents.implied_chain() + } + + /// Returns whether the given chain is supported by the offer. + pub fn supports_chain(&self, chain: ChainHash) -> bool { + self.contents.supports_chain(chain) + } + + /// Whether the offer has expired. + #[cfg(feature = "std")] + pub fn is_expired(&self) -> bool { + self.contents.is_expired() + } + + /// Whether the offer 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) } /// Returns whether the given quantity is valid for the offer. @@ -434,35 +485,37 @@ impl Offer { self.contents.expects_quantity() } - /// The public key used by the recipient to sign invoices. - pub fn signing_pubkey(&self) -> PublicKey { - self.contents.signing_pubkey() - } - /// Similar to [`Offer::request_invoice`] except it: /// - derives the [`InvoiceRequest::payer_id`] such that a different key can be used for each - /// request, and - /// - sets the [`InvoiceRequest::metadata`] when [`InvoiceRequestBuilder::build`] is called such - /// that it can be used by [`Invoice::verify`] to determine if the invoice was requested using - /// a base [`ExpandedKey`] from which the payer id was derived. + /// request, + /// - sets [`InvoiceRequest::payer_metadata`] when [`InvoiceRequestBuilder::build`] is called + /// such that it can be used by [`Bolt12Invoice::verify`] to determine if the invoice was + /// requested using a base [`ExpandedKey`] from which the payer id was derived, and + /// - includes the [`PaymentId`] encrypted in [`InvoiceRequest::payer_metadata`] so that it can + /// be used when sending the payment for the requested invoice. /// /// Useful to protect the sender's privacy. /// + /// This is not exported to bindings users as builder patterns don't map outside of move semantics. + /// /// [`InvoiceRequest::payer_id`]: crate::offers::invoice_request::InvoiceRequest::payer_id - /// [`InvoiceRequest::metadata`]: crate::offers::invoice_request::InvoiceRequest::metadata - /// [`Invoice::verify`]: crate::offers::invoice::Invoice::verify + /// [`InvoiceRequest::payer_metadata`]: crate::offers::invoice_request::InvoiceRequest::payer_metadata + /// [`Bolt12Invoice::verify`]: crate::offers::invoice::Bolt12Invoice::verify /// [`ExpandedKey`]: crate::ln::inbound_payment::ExpandedKey pub fn request_invoice_deriving_payer_id<'a, 'b, ES: Deref, T: secp256k1::Signing>( - &'a self, expanded_key: &ExpandedKey, entropy_source: ES, secp_ctx: &'b Secp256k1 - ) -> Result, SemanticError> + &'a self, expanded_key: &ExpandedKey, entropy_source: ES, secp_ctx: &'b Secp256k1, + payment_id: PaymentId + ) -> Result, Bolt12SemanticError> where ES::Target: EntropySource, { - if self.features().requires_unknown_bits() { - return Err(SemanticError::UnknownRequiredFeatures); + if self.offer_features().requires_unknown_bits() { + return Err(Bolt12SemanticError::UnknownRequiredFeatures); } - Ok(InvoiceRequestBuilder::deriving_payer_id(self, expanded_key, entropy_source, secp_ctx)) + Ok(InvoiceRequestBuilder::deriving_payer_id( + self, expanded_key, entropy_source, secp_ctx, payment_id + )) } /// Similar to [`Offer::request_invoice_deriving_payer_id`] except uses `payer_id` for the @@ -470,22 +523,27 @@ impl Offer { /// /// Useful for recurring payments using the same `payer_id` with different invoices. /// + /// This is not exported to bindings users as builder patterns don't map outside of move semantics. + /// /// [`InvoiceRequest::payer_id`]: crate::offers::invoice_request::InvoiceRequest::payer_id pub fn request_invoice_deriving_metadata( - &self, payer_id: PublicKey, expanded_key: &ExpandedKey, entropy_source: ES - ) -> Result, SemanticError> + &self, payer_id: PublicKey, expanded_key: &ExpandedKey, entropy_source: ES, + payment_id: PaymentId + ) -> Result, Bolt12SemanticError> where ES::Target: EntropySource, { - if self.features().requires_unknown_bits() { - return Err(SemanticError::UnknownRequiredFeatures); + if self.offer_features().requires_unknown_bits() { + return Err(Bolt12SemanticError::UnknownRequiredFeatures); } - Ok(InvoiceRequestBuilder::deriving_metadata(self, payer_id, expanded_key, entropy_source)) + Ok(InvoiceRequestBuilder::deriving_metadata( + self, payer_id, expanded_key, entropy_source, payment_id + )) } /// Creates an [`InvoiceRequestBuilder`] for the offer with the given `metadata` and `payer_id`, - /// which will be reflected in the `Invoice` response. + /// which will be reflected in the `Bolt12Invoice` response. /// /// The `metadata` is useful for including information about the derivation of `payer_id` such /// that invoice response handling can be stateless. Also serves as payer-provided entropy while @@ -496,12 +554,14 @@ impl Offer { /// /// Errors if the offer contains unknown required features. /// + /// This is not exported to bindings users as builder patterns don't map outside of move semantics. + /// /// [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest pub fn request_invoice( &self, metadata: Vec, payer_id: PublicKey - ) -> Result, SemanticError> { - if self.features().requires_unknown_bits() { - return Err(SemanticError::UnknownRequiredFeatures); + ) -> Result, Bolt12SemanticError> { + if self.offer_features().requires_unknown_bits() { + return Err(Bolt12SemanticError::UnknownRequiredFeatures); } Ok(InvoiceRequestBuilder::new(self, metadata, payer_id)) @@ -536,41 +596,64 @@ impl OfferContents { self.metadata.as_ref().and_then(|metadata| metadata.as_bytes()) } + pub fn amount(&self) -> Option<&Amount> { + self.amount.as_ref() + } + + pub fn description(&self) -> PrintableString { + PrintableString(&self.description) + } + + pub fn features(&self) -> &OfferFeatures { + &self.features + } + + pub fn absolute_expiry(&self) -> Option { + 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 fn amount(&self) -> Option<&Amount> { - self.amount.as_ref() + 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 { + 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 check_amount_msats_for_quantity( &self, amount_msats: Option, quantity: Option - ) -> Result<(), SemanticError> { + ) -> Result<(), Bolt12SemanticError> { let offer_amount_msats = match self.amount { None => 0, Some(Amount::Bitcoin { amount_msats }) => amount_msats, - Some(Amount::Currency { .. }) => return Err(SemanticError::UnsupportedCurrency), + Some(Amount::Currency { .. }) => return Err(Bolt12SemanticError::UnsupportedCurrency), }; if !self.expects_quantity() || quantity.is_some() { let expected_amount_msats = offer_amount_msats.checked_mul(quantity.unwrap_or(1)) - .ok_or(SemanticError::InvalidAmount)?; + .ok_or(Bolt12SemanticError::InvalidAmount)?; let amount_msats = amount_msats.unwrap_or(expected_amount_msats); if amount_msats < expected_amount_msats { - return Err(SemanticError::InsufficientAmount); + return Err(Bolt12SemanticError::InsufficientAmount); } if amount_msats > MAX_VALUE_MSAT { - return Err(SemanticError::InvalidAmount); + return Err(Bolt12SemanticError::InvalidAmount); } } @@ -581,13 +664,13 @@ impl OfferContents { self.supported_quantity } - pub(super) fn check_quantity(&self, quantity: Option) -> Result<(), SemanticError> { + pub(super) fn check_quantity(&self, quantity: Option) -> Result<(), Bolt12SemanticError> { let expects_quantity = self.expects_quantity(); match quantity { - None if expects_quantity => Err(SemanticError::MissingQuantity), - Some(_) if !expects_quantity => Err(SemanticError::UnexpectedQuantity), + None if expects_quantity => Err(Bolt12SemanticError::MissingQuantity), + Some(_) if !expects_quantity => Err(Bolt12SemanticError::UnexpectedQuantity), Some(quantity) if !self.is_valid_quantity(quantity) => { - Err(SemanticError::InvalidQuantity) + Err(Bolt12SemanticError::InvalidQuantity) }, _ => Ok(()), } @@ -622,11 +705,13 @@ impl OfferContents { let tlv_stream = TlvStream::new(bytes).range(OFFER_TYPES).filter(|record| { match record.r#type { OFFER_METADATA_TYPE => false, - OFFER_NODE_ID_TYPE => !self.metadata.as_ref().unwrap().derives_keys(), + OFFER_NODE_ID_TYPE => { + !self.metadata.as_ref().unwrap().derives_recipient_keys() + }, _ => true, } }); - signer::verify_metadata( + signer::verify_recipient_metadata( metadata, key, IV_BYTES, self.signing_pubkey(), tlv_stream, secp_ctx ) }, @@ -749,7 +834,7 @@ impl Bech32Encode for Offer { } impl FromStr for Offer { - type Err = ParseError; + type Err = Bolt12ParseError; fn from_str(s: &str) -> Result::Err> { Self::from_bech32_str(s) @@ -757,7 +842,7 @@ impl FromStr for Offer { } impl TryFrom> for Offer { - type Error = ParseError; + type Error = Bolt12ParseError; fn try_from(bytes: Vec) -> Result { let offer = ParsedMessage::::try_from(bytes)?; @@ -768,7 +853,7 @@ impl TryFrom> for Offer { } impl TryFrom for OfferContents { - type Error = SemanticError; + type Error = Bolt12SemanticError; fn try_from(tlv_stream: OfferTlvStream) -> Result { let OfferTlvStream { @@ -781,15 +866,15 @@ impl TryFrom for OfferContents { let amount = match (currency, amount) { (None, None) => None, (None, Some(amount_msats)) if amount_msats > MAX_VALUE_MSAT => { - return Err(SemanticError::InvalidAmount); + return Err(Bolt12SemanticError::InvalidAmount); }, (None, Some(amount_msats)) => Some(Amount::Bitcoin { amount_msats }), - (Some(_), None) => return Err(SemanticError::MissingAmount), + (Some(_), None) => return Err(Bolt12SemanticError::MissingAmount), (Some(iso4217_code), Some(amount)) => Some(Amount::Currency { iso4217_code, amount }), }; let description = match description { - None => return Err(SemanticError::MissingDescription), + None => return Err(Bolt12SemanticError::MissingDescription), Some(description) => description, }; @@ -805,7 +890,7 @@ impl TryFrom for OfferContents { }; let signing_pubkey = match node_id { - None => return Err(SemanticError::MissingSigningPubkey), + None => return Err(Bolt12SemanticError::MissingSigningPubkey), Some(node_id) => node_id, }; @@ -832,13 +917,13 @@ mod tests { use core::convert::TryFrom; use core::num::NonZeroU64; use core::time::Duration; - use crate::chain::keysinterface::KeyMaterial; + use crate::blinded_path::{BlindedHop, BlindedPath}; + use crate::sign::KeyMaterial; use crate::ln::features::OfferFeatures; use crate::ln::inbound_payment::ExpandedKey; use crate::ln::msgs::{DecodeError, MAX_VALUE_MSAT}; - use crate::offers::parse::{ParseError, SemanticError}; + use crate::offers::parse::{Bolt12ParseError, Bolt12SemanticError}; use crate::offers::test_utils::*; - use crate::onion_message::{BlindedHop, BlindedPath}; use crate::util::ser::{BigSize, Writeable}; use crate::util::string::PrintableString; @@ -855,7 +940,7 @@ mod tests { assert_eq!(offer.metadata(), None); assert_eq!(offer.amount(), None); assert_eq!(offer.description(), PrintableString("foo")); - assert_eq!(offer.features(), &OfferFeatures::empty()); + assert_eq!(offer.offer_features(), &OfferFeatures::empty()); assert_eq!(offer.absolute_expiry(), None); #[cfg(feature = "std")] assert!(!offer.is_expired()); @@ -1071,7 +1156,7 @@ mod tests { assert_eq!(tlv_stream.currency, Some(b"USD")); match builder.build() { Ok(_) => panic!("expected error"), - Err(e) => assert_eq!(e, SemanticError::UnsupportedCurrency), + Err(e) => assert_eq!(e, Bolt12SemanticError::UnsupportedCurrency), } let offer = OfferBuilder::new("foo".into(), pubkey(42)) @@ -1086,7 +1171,7 @@ mod tests { let invalid_amount = Amount::Bitcoin { amount_msats: MAX_VALUE_MSAT + 1 }; match OfferBuilder::new("foo".into(), pubkey(42)).amount(invalid_amount).build() { Ok(_) => panic!("expected error"), - Err(e) => assert_eq!(e, SemanticError::InvalidAmount), + Err(e) => assert_eq!(e, Bolt12SemanticError::InvalidAmount), } } @@ -1096,7 +1181,7 @@ mod tests { .features_unchecked(OfferFeatures::unknown()) .build() .unwrap(); - assert_eq!(offer.features(), &OfferFeatures::unknown()); + assert_eq!(offer.offer_features(), &OfferFeatures::unknown()); assert_eq!(offer.as_tlv_stream().features, Some(&OfferFeatures::unknown())); let offer = OfferBuilder::new("foo".into(), pubkey(42)) @@ -1104,7 +1189,7 @@ mod tests { .features_unchecked(OfferFeatures::empty()) .build() .unwrap(); - assert_eq!(offer.features(), &OfferFeatures::empty()); + assert_eq!(offer.offer_features(), &OfferFeatures::empty()); assert_eq!(offer.as_tlv_stream().features, None); } @@ -1112,6 +1197,7 @@ mod tests { fn builds_offer_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 offer = OfferBuilder::new("foo".into(), pubkey(42)) .absolute_expiry(future_expiry) @@ -1119,6 +1205,7 @@ mod tests { .unwrap(); #[cfg(feature = "std")] assert!(!offer.is_expired()); + assert!(!offer.is_expired_no_std(now)); assert_eq!(offer.absolute_expiry(), Some(future_expiry)); assert_eq!(offer.as_tlv_stream().absolute_expiry, Some(future_expiry.as_secs())); @@ -1129,6 +1216,7 @@ mod tests { .unwrap(); #[cfg(feature = "std")] assert!(offer.is_expired()); + assert!(offer.is_expired_no_std(now)); assert_eq!(offer.absolute_expiry(), Some(past_expiry)); assert_eq!(offer.as_tlv_stream().absolute_expiry, Some(past_expiry.as_secs())); } @@ -1240,7 +1328,7 @@ mod tests { .request_invoice(vec![1; 32], pubkey(43)) { Ok(_) => panic!("expected error"), - Err(e) => assert_eq!(e, SemanticError::UnknownRequiredFeatures), + Err(e) => assert_eq!(e, Bolt12SemanticError::UnknownRequiredFeatures), } } @@ -1286,7 +1374,7 @@ mod tests { match Offer::try_from(encoded_offer) { Ok(_) => panic!("expected error"), - Err(e) => assert_eq!(e, ParseError::InvalidSemantics(SemanticError::MissingAmount)), + Err(e) => assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::MissingAmount)), } let mut tlv_stream = offer.as_tlv_stream(); @@ -1298,7 +1386,7 @@ mod tests { match Offer::try_from(encoded_offer) { Ok(_) => panic!("expected error"), - Err(e) => assert_eq!(e, ParseError::InvalidSemantics(SemanticError::InvalidAmount)), + Err(e) => assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::InvalidAmount)), } } @@ -1318,7 +1406,7 @@ mod tests { match Offer::try_from(encoded_offer) { Ok(_) => panic!("expected error"), Err(e) => { - assert_eq!(e, ParseError::InvalidSemantics(SemanticError::MissingDescription)); + assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::MissingDescription)); }, } } @@ -1408,7 +1496,7 @@ mod tests { match Offer::try_from(encoded_offer) { Ok(_) => panic!("expected error"), Err(e) => { - assert_eq!(e, ParseError::InvalidSemantics(SemanticError::MissingSigningPubkey)); + assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::MissingSigningPubkey)); }, } } @@ -1425,41 +1513,34 @@ mod tests { match Offer::try_from(encoded_offer) { Ok(_) => panic!("expected error"), - Err(e) => assert_eq!(e, ParseError::Decode(DecodeError::InvalidValue)), + Err(e) => assert_eq!(e, Bolt12ParseError::Decode(DecodeError::InvalidValue)), } } } #[cfg(test)] mod bech32_tests { - use super::{Offer, ParseError}; + use super::{Bolt12ParseError, Offer}; use bitcoin::bech32; use crate::ln::msgs::DecodeError; - // TODO: Remove once test vectors are updated. - #[ignore] #[test] fn encodes_offer_as_bech32_without_checksum() { - let encoded_offer = "lno1qcp4256ypqpq86q2pucnq42ngssx2an9wfujqerp0y2pqun4wd68jtn00fkxzcnn9ehhyec6qgqsz83qfwdpl28qqmc78ymlvhmxcsywdk5wrjnj36jryg488qwlrnzyjczlqsp9nyu4phcg6dqhlhzgxagfu7zh3d9re0sqp9ts2yfugvnnm9gxkcnnnkdpa084a6t520h5zhkxsdnghvpukvd43lastpwuh73k29qsy"; + let encoded_offer = "lno1pqps7sjqpgtyzm3qv4uxzmtsd3jjqer9wd3hy6tsw35k7msjzfpy7nz5yqcnygrfdej82um5wf5k2uckyypwa3eyt44h6txtxquqh7lz5djge4afgfjn7k4rgrkuag0jsd5xvxg"; let offer = dbg!(encoded_offer.parse::().unwrap()); let reencoded_offer = offer.to_string(); dbg!(reencoded_offer.parse::().unwrap()); assert_eq!(reencoded_offer, encoded_offer); } - // TODO: Remove once test vectors are updated. - #[ignore] #[test] fn parses_bech32_encoded_offers() { let offers = [ // BOLT 12 test vectors - "lno1qcp4256ypqpq86q2pucnq42ngssx2an9wfujqerp0y2pqun4wd68jtn00fkxzcnn9ehhyec6qgqsz83qfwdpl28qqmc78ymlvhmxcsywdk5wrjnj36jryg488qwlrnzyjczlqsp9nyu4phcg6dqhlhzgxagfu7zh3d9re0sqp9ts2yfugvnnm9gxkcnnnkdpa084a6t520h5zhkxsdnghvpukvd43lastpwuh73k29qsy", - "l+no1qcp4256ypqpq86q2pucnq42ngssx2an9wfujqerp0y2pqun4wd68jtn00fkxzcnn9ehhyec6qgqsz83qfwdpl28qqmc78ymlvhmxcsywdk5wrjnj36jryg488qwlrnzyjczlqsp9nyu4phcg6dqhlhzgxagfu7zh3d9re0sqp9ts2yfugvnnm9gxkcnnnkdpa084a6t520h5zhkxsdnghvpukvd43lastpwuh73k29qsy", - "l+no1qcp4256ypqpq86q2pucnq42ngssx2an9wfujqerp0y2pqun4wd68jtn00fkxzcnn9ehhyec6qgqsz83qfwdpl28qqmc78ymlvhmxcsywdk5wrjnj36jryg488qwlrnzyjczlqsp9nyu4phcg6dqhlhzgxagfu7zh3d9re0sqp9ts2yfugvnnm9gxkcnnnkdpa084a6t520h5zhkxsdnghvpukvd43lastpwuh73k29qsy", - "lno1qcp4256ypqpq+86q2pucnq42ngssx2an9wfujqerp0y2pqun4wd68jtn0+0fkxzcnn9ehhyec6qgqsz83qfwdpl28qqmc78ymlvhmxcsywdk5wrjnj36jryg488qwlrnzyjczlqsp9nyu4phcg6dqhlhzgxagfu7zh3d9re0+sqp9ts2yfugvnnm9gxkcnnnkdpa084a6t520h5zhkxsdnghvpukvd43lastpwuh73k29qs+y", - "lno1qcp4256ypqpq+ 86q2pucnq42ngssx2an9wfujqerp0y2pqun4wd68jtn0+ 0fkxzcnn9ehhyec6qgqsz83qfwdpl28qqmc78ymlvhmxcsywdk5wrjnj36jryg488qwlrnzyjczlqsp9nyu4phcg6dqhlhzgxagfu7zh3d9re0+\nsqp9ts2yfugvnnm9gxkcnnnkdpa084a6t520h5zhkxsdnghvpukvd43l+\r\nastpwuh73k29qs+\r y", - // Two blinded paths - "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", + "lno1pqps7sjqpgtyzm3qv4uxzmtsd3jjqer9wd3hy6tsw35k7msjzfpy7nz5yqcnygrfdej82um5wf5k2uckyypwa3eyt44h6txtxquqh7lz5djge4afgfjn7k4rgrkuag0jsd5xvxg", + "l+no1pqps7sjqpgtyzm3qv4uxzmtsd3jjqer9wd3hy6tsw35k7msjzfpy7nz5yqcnygrfdej82um5wf5k2uckyypwa3eyt44h6txtxquqh7lz5djge4afgfjn7k4rgrkuag0jsd5xvxg", + "lno1pqps7sjqpgt+yzm3qv4uxzmtsd3jjqer9wd3hy6tsw3+5k7msjzfpy7nz5yqcn+ygrfdej82um5wf5k2uckyypwa3eyt44h6txtxquqh7lz5djge4afgfjn7k4rgrkuag0jsd+5xvxg", + "lno1pqps7sjqpgt+ yzm3qv4uxzmtsd3jjqer9wd3hy6tsw3+ 5k7msjzfpy7nz5yqcn+\nygrfdej82um5wf5k2uckyypwa3eyt44h6txtxquqh7lz5djge4afgfjn7k4rgrkuag0jsd+\r\n 5xvxg", ]; for encoded_offer in &offers { if let Err(e) = encoded_offer.parse::() { @@ -1472,16 +1553,16 @@ mod bech32_tests { fn fails_parsing_bech32_encoded_offers_with_invalid_continuations() { let offers = [ // BOLT 12 test vectors - "lno1qcp4256ypqpq86q2pucnq42ngssx2an9wfujqerp0y2pqun4wd68jtn00fkxzcnn9ehhyec6qgqsz83qfwdpl28qqmc78ymlvhmxcsywdk5wrjnj36jryg488qwlrnzyjczlqsp9nyu4phcg6dqhlhzgxagfu7zh3d9re0sqp9ts2yfugvnnm9gxkcnnnkdpa084a6t520h5zhkxsdnghvpukvd43lastpwuh73k29qsy+", - "lno1qcp4256ypqpq86q2pucnq42ngssx2an9wfujqerp0y2pqun4wd68jtn00fkxzcnn9ehhyec6qgqsz83qfwdpl28qqmc78ymlvhmxcsywdk5wrjnj36jryg488qwlrnzyjczlqsp9nyu4phcg6dqhlhzgxagfu7zh3d9re0sqp9ts2yfugvnnm9gxkcnnnkdpa084a6t520h5zhkxsdnghvpukvd43lastpwuh73k29qsy+ ", - "+lno1qcp4256ypqpq86q2pucnq42ngssx2an9wfujqerp0y2pqun4wd68jtn00fkxzcnn9ehhyec6qgqsz83qfwdpl28qqmc78ymlvhmxcsywdk5wrjnj36jryg488qwlrnzyjczlqsp9nyu4phcg6dqhlhzgxagfu7zh3d9re0sqp9ts2yfugvnnm9gxkcnnnkdpa084a6t520h5zhkxsdnghvpukvd43lastpwuh73k29qsy", - "+ lno1qcp4256ypqpq86q2pucnq42ngssx2an9wfujqerp0y2pqun4wd68jtn00fkxzcnn9ehhyec6qgqsz83qfwdpl28qqmc78ymlvhmxcsywdk5wrjnj36jryg488qwlrnzyjczlqsp9nyu4phcg6dqhlhzgxagfu7zh3d9re0sqp9ts2yfugvnnm9gxkcnnnkdpa084a6t520h5zhkxsdnghvpukvd43lastpwuh73k29qsy", - "ln++o1qcp4256ypqpq86q2pucnq42ngssx2an9wfujqerp0y2pqun4wd68jtn00fkxzcnn9ehhyec6qgqsz83qfwdpl28qqmc78ymlvhmxcsywdk5wrjnj36jryg488qwlrnzyjczlqsp9nyu4phcg6dqhlhzgxagfu7zh3d9re0sqp9ts2yfugvnnm9gxkcnnnkdpa084a6t520h5zhkxsdnghvpukvd43lastpwuh73k29qsy", + "lno1pqps7sjqpgtyzm3qv4uxzmtsd3jjqer9wd3hy6tsw35k7msjzfpy7nz5yqcnygrfdej82um5wf5k2uckyypwa3eyt44h6txtxquqh7lz5djge4afgfjn7k4rgrkuag0jsd5xvxg+", + "lno1pqps7sjqpgtyzm3qv4uxzmtsd3jjqer9wd3hy6tsw35k7msjzfpy7nz5yqcnygrfdej82um5wf5k2uckyypwa3eyt44h6txtxquqh7lz5djge4afgfjn7k4rgrkuag0jsd5xvxg+ ", + "+lno1pqps7sjqpgtyzm3qv4uxzmtsd3jjqer9wd3hy6tsw35k7msjzfpy7nz5yqcnygrfdej82um5wf5k2uckyypwa3eyt44h6txtxquqh7lz5djge4afgfjn7k4rgrkuag0jsd5xvxg", + "+ lno1pqps7sjqpgtyzm3qv4uxzmtsd3jjqer9wd3hy6tsw35k7msjzfpy7nz5yqcnygrfdej82um5wf5k2uckyypwa3eyt44h6txtxquqh7lz5djge4afgfjn7k4rgrkuag0jsd5xvxg", + "ln++o1pqps7sjqpgtyzm3qv4uxzmtsd3jjqer9wd3hy6tsw35k7msjzfpy7nz5yqcnygrfdej82um5wf5k2uckyypwa3eyt44h6txtxquqh7lz5djge4afgfjn7k4rgrkuag0jsd5xvxg", ]; for encoded_offer in &offers { match encoded_offer.parse::() { Ok(_) => panic!("Valid offer: {}", encoded_offer), - Err(e) => assert_eq!(e, ParseError::InvalidContinuation), + Err(e) => assert_eq!(e, Bolt12ParseError::InvalidContinuation), } } @@ -1489,28 +1570,28 @@ mod bech32_tests { #[test] fn fails_parsing_bech32_encoded_offer_with_invalid_hrp() { - let encoded_offer = "lni1qcp4256ypqpq86q2pucnq42ngssx2an9wfujqerp0y2pqun4wd68jtn00fkxzcnn9ehhyec6qgqsz83qfwdpl28qqmc78ymlvhmxcsywdk5wrjnj36jryg488qwlrnzyjczlqsp9nyu4phcg6dqhlhzgxagfu7zh3d9re0sqp9ts2yfugvnnm9gxkcnnnkdpa084a6t520h5zhkxsdnghvpukvd43lastpwuh73k29qsy"; + let encoded_offer = "lni1pqps7sjqpgtyzm3qv4uxzmtsd3jjqer9wd3hy6tsw35k7msjzfpy7nz5yqcnygrfdej82um5wf5k2uckyypwa3eyt44h6txtxquqh7lz5djge4afgfjn7k4rgrkuag0jsd5xvxg"; match encoded_offer.parse::() { Ok(_) => panic!("Valid offer: {}", encoded_offer), - Err(e) => assert_eq!(e, ParseError::InvalidBech32Hrp), + Err(e) => assert_eq!(e, Bolt12ParseError::InvalidBech32Hrp), } } #[test] fn fails_parsing_bech32_encoded_offer_with_invalid_bech32_data() { - let encoded_offer = "lno1qcp4256ypqpq86q2pucnq42ngssx2an9wfujqerp0y2pqun4wd68jtn00fkxzcnn9ehhyec6qgqsz83qfwdpl28qqmc78ymlvhmxcsywdk5wrjnj36jryg488qwlrnzyjczlqsp9nyu4phcg6dqhlhzgxagfu7zh3d9re0sqp9ts2yfugvnnm9gxkcnnnkdpa084a6t520h5zhkxsdnghvpukvd43lastpwuh73k29qso"; + let encoded_offer = "lno1pqps7sjqpgtyzm3qv4uxzmtsd3jjqer9wd3hy6tsw35k7msjzfpy7nz5yqcnygrfdej82um5wf5k2uckyypwa3eyt44h6txtxquqh7lz5djge4afgfjn7k4rgrkuag0jsd5xvxo"; match encoded_offer.parse::() { Ok(_) => panic!("Valid offer: {}", encoded_offer), - Err(e) => assert_eq!(e, ParseError::Bech32(bech32::Error::InvalidChar('o'))), + Err(e) => assert_eq!(e, Bolt12ParseError::Bech32(bech32::Error::InvalidChar('o'))), } } #[test] fn fails_parsing_bech32_encoded_offer_with_invalid_tlv_data() { - let encoded_offer = "lno1qcp4256ypqpq86q2pucnq42ngssx2an9wfujqerp0y2pqun4wd68jtn00fkxzcnn9ehhyec6qgqsz83qfwdpl28qqmc78ymlvhmxcsywdk5wrjnj36jryg488qwlrnzyjczlqsp9nyu4phcg6dqhlhzgxagfu7zh3d9re0sqp9ts2yfugvnnm9gxkcnnnkdpa084a6t520h5zhkxsdnghvpukvd43lastpwuh73k29qsyqqqqq"; + let encoded_offer = "lno1pqps7sjqpgtyzm3qv4uxzmtsd3jjqer9wd3hy6tsw35k7msjzfpy7nz5yqcnygrfdej82um5wf5k2uckyypwa3eyt44h6txtxquqh7lz5djge4afgfjn7k4rgrkuag0jsd5xvxgqqqqq"; match encoded_offer.parse::() { Ok(_) => panic!("Valid offer: {}", encoded_offer), - Err(e) => assert_eq!(e, ParseError::Decode(DecodeError::InvalidValue)), + Err(e) => assert_eq!(e, Bolt12ParseError::Decode(DecodeError::InvalidValue)), } } }