use crate::sign::EntropySource;
use crate::io;
use crate::blinded_path::BlindedPath;
-use crate::ln::PaymentHash;
+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::offers::parse::{Bolt12ParseError, ParsedMessage, Bolt12SemanticError};
use crate::offers::payer::{PayerContents, PayerTlvStream, PayerTlvStreamRef};
use crate::offers::signer::{Metadata, MetadataMaterial};
-use crate::util::ser::{HighZeroBytesDroppedBigSize, SeekReadable, WithoutLength, Writeable, Writer};
-use crate::util::string::PrintableString;
+use crate::util::ser::{HighZeroBytesDroppedBigSize, Readable, SeekReadable, WithoutLength, Writeable, Writer};
+use crate::util::string::{PrintableString, UntrustedString};
#[cfg(not(c_bindings))]
use {
return Err(Bolt12SemanticError::UnknownRequiredFeatures);
}
- <$builder>::for_offer(&$contents, payment_paths, created_at, payment_hash)
+ let signing_pubkey = match $contents.contents.inner.offer.signing_pubkey() {
+ Some(signing_pubkey) => signing_pubkey,
+ None => return Err(Bolt12SemanticError::MissingSigningPubkey),
+ };
+
+ <$builder>::for_offer(&$contents, payment_paths, created_at, payment_hash, signing_pubkey)
+ }
+
+ #[cfg(test)]
+ #[allow(dead_code)]
+ pub(super) fn respond_with_no_std_using_signing_pubkey(
+ &$self, payment_paths: Vec<(BlindedPayInfo, BlindedPath)>, payment_hash: PaymentHash,
+ created_at: core::time::Duration, signing_pubkey: PublicKey
+ ) -> Result<$builder, Bolt12SemanticError> {
+ debug_assert!($contents.contents.inner.offer.signing_pubkey().is_none());
+
+ if $contents.invoice_request_features().requires_unknown_bits() {
+ return Err(Bolt12SemanticError::UnknownRequiredFeatures);
+ }
+
+ <$builder>::for_offer(&$contents, payment_paths, created_at, payment_hash, signing_pubkey)
}
} }
Some(keys) => keys,
};
+ match $contents.contents.inner.offer.signing_pubkey() {
+ Some(signing_pubkey) => debug_assert_eq!(signing_pubkey, keys.public_key()),
+ None => return Err(Bolt12SemanticError::MissingSigningPubkey),
+ }
+
<$builder>::for_offer_using_keys(
&$self.inner, payment_paths, created_at, payment_hash, keys
)
invoice_request_respond_with_derived_signing_pubkey_methods!(self, self.inner, InvoiceBuilder<DerivedSigningPubkey>);
#[cfg(c_bindings)]
invoice_request_respond_with_derived_signing_pubkey_methods!(self, self.inner, InvoiceWithDerivedSigningPubkeyBuilder);
+
+ pub(crate) fn fields(&self) -> InvoiceRequestFields {
+ let InvoiceRequestContents {
+ payer_id,
+ inner: InvoiceRequestContentsWithoutPayerId {
+ payer: _, offer: _, chain: _, amount_msats: _, features: _, quantity, payer_note
+ },
+ } = &self.inner.contents;
+
+ InvoiceRequestFields {
+ payer_id: *payer_id,
+ quantity: *quantity,
+ payer_note_truncated: payer_note.clone()
+ .map(|mut s| { s.truncate(PAYER_NOTE_LIMIT); UntrustedString(s) }),
+ }
+ }
}
impl InvoiceRequestContents {
quantity: self.quantity,
payer_id: None,
payer_note: self.payer_note.as_ref(),
+ paths: None,
};
(payer, offer, invoice_request)
/// [`Refund::payer_id`]: crate::offers::refund::Refund::payer_id
pub(super) const INVOICE_REQUEST_PAYER_ID_TYPE: u64 = 88;
+// This TLV stream is used for both InvoiceRequest and Refund, but not all TLV records are valid for
+// InvoiceRequest as noted below.
tlv_stream!(InvoiceRequestTlvStream, InvoiceRequestTlvStreamRef, INVOICE_REQUEST_TYPES, {
(80, chain: ChainHash),
(82, amount: (u64, HighZeroBytesDroppedBigSize)),
(86, quantity: (u64, HighZeroBytesDroppedBigSize)),
(INVOICE_REQUEST_PAYER_ID_TYPE, payer_id: PublicKey),
(89, payer_note: (String, WithoutLength)),
+ // Only used for Refund since the onion message of an InvoiceRequest has a reply path.
+ (90, paths: (Vec<BlindedPath>, WithoutLength)),
});
type FullInvoiceRequestTlvStream =
let (
PayerTlvStream { metadata },
offer_tlv_stream,
- InvoiceRequestTlvStream { chain, amount, features, quantity, payer_id, payer_note },
+ InvoiceRequestTlvStream {
+ chain, amount, features, quantity, payer_id, payer_note, paths,
+ },
) = tlv_stream;
let payer = match metadata {
Some(payer_id) => payer_id,
};
+ if paths.is_some() {
+ return Err(Bolt12SemanticError::UnexpectedPaths);
+ }
+
Ok(InvoiceRequestContents {
inner: InvoiceRequestContentsWithoutPayerId {
payer, offer, chain, amount_msats: amount, features, quantity, payer_note,
}
}
+/// Fields sent in an [`InvoiceRequest`] message to include in [`PaymentContext::Bolt12Offer`].
+///
+/// [`PaymentContext::Bolt12Offer`]: crate::blinded_path::payment::PaymentContext::Bolt12Offer
+#[derive(Clone, Debug, Eq, PartialEq)]
+pub struct InvoiceRequestFields {
+ /// A possibly transient pubkey used to sign the invoice request.
+ pub payer_id: PublicKey,
+
+ /// The quantity of the offer's item conforming to [`Offer::is_valid_quantity`].
+ pub quantity: Option<u64>,
+
+ /// A payer-provided note which will be seen by the recipient and reflected back in the invoice
+ /// response. Truncated to [`PAYER_NOTE_LIMIT`] characters.
+ pub payer_note_truncated: Option<UntrustedString>,
+}
+
+/// The maximum number of characters included in [`InvoiceRequestFields::payer_note_truncated`].
+pub const PAYER_NOTE_LIMIT: usize = 512;
+
+impl Writeable for InvoiceRequestFields {
+ fn write<W: Writer>(&self, writer: &mut W) -> Result<(), io::Error> {
+ write_tlv_fields!(writer, {
+ (0, self.payer_id, required),
+ (2, self.quantity.map(|v| HighZeroBytesDroppedBigSize(v)), option),
+ (4, self.payer_note_truncated.as_ref().map(|s| WithoutLength(&s.0)), option),
+ });
+ Ok(())
+ }
+}
+
+impl Readable for InvoiceRequestFields {
+ fn read<R: io::Read>(reader: &mut R) -> Result<Self, DecodeError> {
+ _init_and_read_len_prefixed_tlv_fields!(reader, {
+ (0, payer_id, required),
+ (2, quantity, (option, encoding: (u64, HighZeroBytesDroppedBigSize))),
+ (4, payer_note_truncated, (option, encoding: (String, WithoutLength))),
+ });
+
+ Ok(InvoiceRequestFields {
+ payer_id: payer_id.0.unwrap(),
+ quantity,
+ payer_note_truncated: payer_note_truncated.map(|s| UntrustedString(s)),
+ })
+ }
+}
+
#[cfg(test)]
mod tests {
- use super::{InvoiceRequest, InvoiceRequestTlvStreamRef, SIGNATURE_TAG, UnsignedInvoiceRequest};
+ use super::{InvoiceRequest, InvoiceRequestFields, InvoiceRequestTlvStreamRef, PAYER_NOTE_LIMIT, SIGNATURE_TAG, UnsignedInvoiceRequest};
use bitcoin::blockdata::constants::ChainHash;
use bitcoin::network::constants::Network;
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::util::ser::{BigSize, Readable, Writeable};
+ use crate::util::string::{PrintableString, UntrustedString};
#[test]
fn builds_invoice_request_with_defaults() {
assert_eq!(unsigned_invoice_request.paths(), &[]);
assert_eq!(unsigned_invoice_request.issuer(), None);
assert_eq!(unsigned_invoice_request.supported_quantity(), Quantity::One);
- assert_eq!(unsigned_invoice_request.signing_pubkey(), recipient_pubkey());
+ assert_eq!(unsigned_invoice_request.signing_pubkey(), Some(recipient_pubkey()));
assert_eq!(unsigned_invoice_request.chain(), ChainHash::using_genesis_block(Network::Bitcoin));
assert_eq!(unsigned_invoice_request.amount_msats(), None);
assert_eq!(unsigned_invoice_request.invoice_request_features(), &InvoiceRequestFeatures::empty());
assert_eq!(invoice_request.paths(), &[]);
assert_eq!(invoice_request.issuer(), None);
assert_eq!(invoice_request.supported_quantity(), Quantity::One);
- assert_eq!(invoice_request.signing_pubkey(), recipient_pubkey());
+ assert_eq!(invoice_request.signing_pubkey(), Some(recipient_pubkey()));
assert_eq!(invoice_request.chain(), ChainHash::using_genesis_block(Network::Bitcoin));
assert_eq!(invoice_request.amount_msats(), None);
assert_eq!(invoice_request.invoice_request_features(), &InvoiceRequestFeatures::empty());
quantity: None,
payer_id: Some(&payer_pubkey()),
payer_note: None,
+ paths: None,
},
SignatureTlvStreamRef { signature: Some(&invoice_request.signature()) },
),
Err(e) => assert_eq!(e, Bolt12ParseError::Decode(DecodeError::InvalidValue)),
}
}
+
+ #[test]
+ fn copies_verified_invoice_request_fields() {
+ let desc = "foo".to_string();
+ let node_id = recipient_pubkey();
+ let expanded_key = ExpandedKey::new(&KeyMaterial([42; 32]));
+ let entropy = FixedEntropy {};
+ let secp_ctx = Secp256k1::new();
+
+ #[cfg(c_bindings)]
+ use crate::offers::offer::OfferWithDerivedMetadataBuilder as OfferBuilder;
+ let offer = OfferBuilder
+ ::deriving_signing_pubkey(desc, node_id, &expanded_key, &entropy, &secp_ctx)
+ .chain(Network::Testnet)
+ .amount_msats(1000)
+ .supported_quantity(Quantity::Unbounded)
+ .build().unwrap();
+ assert_eq!(offer.signing_pubkey(), Some(node_id));
+
+ let invoice_request = offer.request_invoice(vec![1; 32], payer_pubkey()).unwrap()
+ .chain(Network::Testnet).unwrap()
+ .quantity(1).unwrap()
+ .payer_note("0".repeat(PAYER_NOTE_LIMIT * 2))
+ .build().unwrap()
+ .sign(payer_sign).unwrap();
+ match invoice_request.verify(&expanded_key, &secp_ctx) {
+ Ok(invoice_request) => {
+ let fields = invoice_request.fields();
+ assert_eq!(invoice_request.offer_id, offer.id());
+ assert_eq!(
+ fields,
+ InvoiceRequestFields {
+ payer_id: payer_pubkey(),
+ quantity: Some(1),
+ payer_note_truncated: Some(UntrustedString("0".repeat(PAYER_NOTE_LIMIT))),
+ }
+ );
+
+ let mut buffer = Vec::new();
+ fields.write(&mut buffer).unwrap();
+
+ let deserialized_fields: InvoiceRequestFields =
+ Readable::read(&mut buffer.as_slice()).unwrap();
+ assert_eq!(deserialized_fields, fields);
+ },
+ Err(_) => panic!("unexpected error"),
+ }
+ }
}
projects / rust-lightning / blobdiff