From a4822e5b27b7bffbae2e5337709c75f7c18dc800 Mon Sep 17 00:00:00 2001 From: Valentine Wallace Date: Fri, 12 Nov 2021 14:48:39 -0500 Subject: [PATCH] Remove user_payment_id In upcoming commits, we'll be making the payment secret and payment hash/preimage derivable from info about the payment + a node secret. This means we don't need to store any info about incoming payments and can eventually get rid of the channelmanager::pending_inbound_payments map. --- fuzz/src/chanmon_consistency.rs | 2 +- fuzz/src/full_stack.rs | 2 +- lightning-invoice/src/utils.rs | 1 - lightning/src/ln/channelmanager.rs | 26 +++++++--------- lightning/src/ln/functional_test_utils.rs | 2 +- lightning/src/ln/functional_tests.rs | 38 +++++++++++------------ lightning/src/util/events.rs | 24 +++----------- 7 files changed, 37 insertions(+), 58 deletions(-) diff --git a/fuzz/src/chanmon_consistency.rs b/fuzz/src/chanmon_consistency.rs index acdf3cb3c..8921acdeb 100644 --- a/fuzz/src/chanmon_consistency.rs +++ b/fuzz/src/chanmon_consistency.rs @@ -284,7 +284,7 @@ fn get_payment_secret_hash(dest: &ChanMan, payment_id: &mut u8) -> Option<(Payme let mut payment_hash; for _ in 0..256 { payment_hash = PaymentHash(Sha256::hash(&[*payment_id; 1]).into_inner()); - if let Ok(payment_secret) = dest.create_inbound_payment_for_hash(payment_hash, None, 3600, 0) { + if let Ok(payment_secret) = dest.create_inbound_payment_for_hash(payment_hash, None, 3600) { return Some((payment_secret, payment_hash)); } *payment_id = payment_id.wrapping_add(1); diff --git a/fuzz/src/full_stack.rs b/fuzz/src/full_stack.rs index 81408b85b..c1e9870fd 100644 --- a/fuzz/src/full_stack.rs +++ b/fuzz/src/full_stack.rs @@ -529,7 +529,7 @@ pub fn do_test(data: &[u8], logger: &Arc) { let payment_hash = PaymentHash(Sha256::from_engine(sha).into_inner()); // Note that this may fail - our hashes may collide and we'll end up trying to // double-register the same payment_hash. - let _ = channelmanager.create_inbound_payment_for_hash(payment_hash, None, 1, 0); + let _ = channelmanager.create_inbound_payment_for_hash(payment_hash, None, 1); }, 9 => { for payment in payments_received.drain(..) { diff --git a/lightning-invoice/src/utils.rs b/lightning-invoice/src/utils.rs index b7fdb73f2..f4cc7e713 100644 --- a/lightning-invoice/src/utils.rs +++ b/lightning-invoice/src/utils.rs @@ -63,7 +63,6 @@ where let (payment_hash, payment_secret) = channelmanager.create_inbound_payment( amt_msat, DEFAULT_EXPIRY_TIME.try_into().unwrap(), - 0, ); let our_node_pubkey = channelmanager.get_our_node_id(); let mut invoice = InvoiceBuilder::new(network) diff --git a/lightning/src/ln/channelmanager.rs b/lightning/src/ln/channelmanager.rs index 1e60dcdcc..3231beebb 100644 --- a/lightning/src/ln/channelmanager.rs +++ b/lightning/src/ln/channelmanager.rs @@ -413,6 +413,9 @@ struct PeerState { /// /// For users who don't want to bother doing their own payment preimage storage, we also store that /// here. +/// +/// Note that this struct will be removed entirely soon, in favor of storing no inbound payment data +/// and instead encoding it in the payment secret. struct PendingInboundPayment { /// The payment secret that the sender must use for us to accept this payment payment_secret: PaymentSecret, @@ -2887,7 +2890,6 @@ impl ChannelMana purpose: events::PaymentPurpose::InvoicePayment { payment_preimage: inbound_payment.get().payment_preimage, payment_secret: payment_data.payment_secret, - user_payment_id: inbound_payment.get().user_payment_id, }, amt: total_value, }); @@ -4523,7 +4525,7 @@ impl ChannelMana } } - fn set_payment_hash_secret_map(&self, payment_hash: PaymentHash, payment_preimage: Option, min_value_msat: Option, invoice_expiry_delta_secs: u32, user_payment_id: u64) -> Result { + fn set_payment_hash_secret_map(&self, payment_hash: PaymentHash, payment_preimage: Option, min_value_msat: Option, invoice_expiry_delta_secs: u32) -> Result { assert!(invoice_expiry_delta_secs <= 60*60*24*365); // Sadly bitcoin timestamps are u32s, so panic before 2106 let payment_secret = PaymentSecret(self.keys_manager.get_secure_random_bytes()); @@ -4533,7 +4535,8 @@ impl ChannelMana match payment_secrets.entry(payment_hash) { hash_map::Entry::Vacant(e) => { e.insert(PendingInboundPayment { - payment_secret, min_value_msat, user_payment_id, payment_preimage, + payment_secret, min_value_msat, payment_preimage, + user_payment_id: 0, // For compatibility with version 0.0.103 and earlier // We assume that highest_seen_timestamp is pretty close to the current time - // its updated when we receive a new block with the maximum time we've seen in // a header. It should never be more than two hours in the future. @@ -4565,12 +4568,12 @@ impl ChannelMana /// [`PaymentReceived`]: events::Event::PaymentReceived /// [`PaymentReceived::payment_preimage`]: events::Event::PaymentReceived::payment_preimage /// [`create_inbound_payment_for_hash`]: Self::create_inbound_payment_for_hash - pub fn create_inbound_payment(&self, min_value_msat: Option, invoice_expiry_delta_secs: u32, user_payment_id: u64) -> (PaymentHash, PaymentSecret) { + pub fn create_inbound_payment(&self, min_value_msat: Option, invoice_expiry_delta_secs: u32) -> (PaymentHash, PaymentSecret) { let payment_preimage = PaymentPreimage(self.keys_manager.get_secure_random_bytes()); let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0).into_inner()); (payment_hash, - self.set_payment_hash_secret_map(payment_hash, Some(payment_preimage), min_value_msat, invoice_expiry_delta_secs, user_payment_id) + self.set_payment_hash_secret_map(payment_hash, Some(payment_preimage), min_value_msat, invoice_expiry_delta_secs) .expect("RNG Generated Duplicate PaymentHash")) } @@ -4584,12 +4587,6 @@ impl ChannelMana /// The [`PaymentHash`] (and corresponding [`PaymentPreimage`]) must be globally unique. This /// method may return an Err if another payment with the same payment_hash is still pending. /// - /// `user_payment_id` will be provided back in [`PaymentPurpose::InvoicePayment::user_payment_id`] events to - /// allow tracking of which events correspond with which calls to this and - /// [`create_inbound_payment`]. `user_payment_id` has no meaning inside of LDK, it is simply - /// copied to events and otherwise ignored. It may be used to correlate PaymentReceived events - /// with invoice metadata stored elsewhere. - /// /// `min_value_msat` should be set if the invoice being generated contains a value. Any payment /// received for the returned [`PaymentHash`] will be required to be at least `min_value_msat` /// before a [`PaymentReceived`] event will be generated, ensuring that we do not provide the @@ -4618,9 +4615,8 @@ impl ChannelMana /// /// [`create_inbound_payment`]: Self::create_inbound_payment /// [`PaymentReceived`]: events::Event::PaymentReceived - /// [`PaymentPurpose::InvoicePayment::user_payment_id`]: events::PaymentPurpose::InvoicePayment::user_payment_id - pub fn create_inbound_payment_for_hash(&self, payment_hash: PaymentHash, min_value_msat: Option, invoice_expiry_delta_secs: u32, user_payment_id: u64) -> Result { - self.set_payment_hash_secret_map(payment_hash, None, min_value_msat, invoice_expiry_delta_secs, user_payment_id) + pub fn create_inbound_payment_for_hash(&self, payment_hash: PaymentHash, min_value_msat: Option, invoice_expiry_delta_secs: u32) -> Result { + self.set_payment_hash_secret_map(payment_hash, None, min_value_msat, invoice_expiry_delta_secs) } #[cfg(any(test, feature = "fuzztarget", feature = "_test_utils"))] @@ -6680,7 +6676,7 @@ pub mod bench { payment_preimage.0[0..8].copy_from_slice(&payment_count.to_le_bytes()); payment_count += 1; let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner()); - let payment_secret = $node_b.create_inbound_payment_for_hash(payment_hash, None, 7200, 0).unwrap(); + let payment_secret = $node_b.create_inbound_payment_for_hash(payment_hash, None, 7200).unwrap(); $node_a.send_payment(&route, payment_hash, &Some(payment_secret)).unwrap(); let payment_event = SendEvent::from_event($node_a.get_and_clear_pending_msg_events().pop().unwrap()); diff --git a/lightning/src/ln/functional_test_utils.rs b/lightning/src/ln/functional_test_utils.rs index e9e36e607..086819648 100644 --- a/lightning/src/ln/functional_test_utils.rs +++ b/lightning/src/ln/functional_test_utils.rs @@ -999,7 +999,7 @@ macro_rules! get_payment_preimage_hash { let payment_preimage = PaymentPreimage([*payment_count; 32]); *payment_count += 1; let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner()); - let payment_secret = $dest_node.node.create_inbound_payment_for_hash(payment_hash, $min_value_msat, 7200, 0).unwrap(); + let payment_secret = $dest_node.node.create_inbound_payment_for_hash(payment_hash, $min_value_msat, 7200).unwrap(); (payment_preimage, payment_hash, payment_secret) } } diff --git a/lightning/src/ln/functional_tests.rs b/lightning/src/ln/functional_tests.rs index 8e9893870..2ae12c39e 100644 --- a/lightning/src/ln/functional_tests.rs +++ b/lightning/src/ln/functional_tests.rs @@ -1152,7 +1152,7 @@ fn test_duplicate_htlc_different_direction_onchain() { let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 900_000); let (route, _, _, _) = get_route_and_payment_hash!(nodes[1], nodes[0], 800_000); - let node_a_payment_secret = nodes[0].node.create_inbound_payment_for_hash(payment_hash, None, 7200, 0).unwrap(); + let node_a_payment_secret = nodes[0].node.create_inbound_payment_for_hash(payment_hash, None, 7200).unwrap(); send_along_route_with_secret(&nodes[1], route, &[&[&nodes[0]]], 800_000, payment_hash, node_a_payment_secret); // Provide preimage to node 0 by claiming payment @@ -4957,7 +4957,7 @@ fn test_duplicate_payment_hash_one_failure_one_success() { let (our_payment_preimage, duplicate_payment_hash, _) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 900000); - let payment_secret = nodes[3].node.create_inbound_payment_for_hash(duplicate_payment_hash, None, 7200, 0).unwrap(); + let payment_secret = nodes[3].node.create_inbound_payment_for_hash(duplicate_payment_hash, None, 7200).unwrap(); // We reduce the final CLTV here by a somewhat arbitrary constant to keep it under the one-byte // script push size limit so that the below script length checks match // ACCEPTED_HTLC_SCRIPT_WEIGHT. @@ -5160,30 +5160,30 @@ fn do_test_fail_backwards_unrevoked_remote_announce(deliver_last_raa: bool, anno let (_, payment_hash_2, _) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], ds_dust_limit*1000); // not added < dust limit + HTLC tx fee let (route, _, _, _) = get_route_and_payment_hash!(nodes[1], nodes[5], ds_dust_limit*1000); // 2nd HTLC: - send_along_route_with_secret(&nodes[1], route.clone(), &[&[&nodes[2], &nodes[3], &nodes[5]]], ds_dust_limit*1000, payment_hash_1, nodes[5].node.create_inbound_payment_for_hash(payment_hash_1, None, 7200, 0).unwrap()); // not added < dust limit + HTLC tx fee + send_along_route_with_secret(&nodes[1], route.clone(), &[&[&nodes[2], &nodes[3], &nodes[5]]], ds_dust_limit*1000, payment_hash_1, nodes[5].node.create_inbound_payment_for_hash(payment_hash_1, None, 7200).unwrap()); // not added < dust limit + HTLC tx fee // 3rd HTLC: - send_along_route_with_secret(&nodes[1], route, &[&[&nodes[2], &nodes[3], &nodes[5]]], ds_dust_limit*1000, payment_hash_2, nodes[5].node.create_inbound_payment_for_hash(payment_hash_2, None, 7200, 0).unwrap()); // not added < dust limit + HTLC tx fee + send_along_route_with_secret(&nodes[1], route, &[&[&nodes[2], &nodes[3], &nodes[5]]], ds_dust_limit*1000, payment_hash_2, nodes[5].node.create_inbound_payment_for_hash(payment_hash_2, None, 7200).unwrap()); // not added < dust limit + HTLC tx fee // 4th HTLC: let (_, payment_hash_3, _) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 1000000); // 5th HTLC: let (_, payment_hash_4, _) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 1000000); let (route, _, _, _) = get_route_and_payment_hash!(nodes[1], nodes[5], 1000000); // 6th HTLC: - send_along_route_with_secret(&nodes[1], route.clone(), &[&[&nodes[2], &nodes[3], &nodes[5]]], 1000000, payment_hash_3, nodes[5].node.create_inbound_payment_for_hash(payment_hash_3, None, 7200, 0).unwrap()); + send_along_route_with_secret(&nodes[1], route.clone(), &[&[&nodes[2], &nodes[3], &nodes[5]]], 1000000, payment_hash_3, nodes[5].node.create_inbound_payment_for_hash(payment_hash_3, None, 7200).unwrap()); // 7th HTLC: - send_along_route_with_secret(&nodes[1], route, &[&[&nodes[2], &nodes[3], &nodes[5]]], 1000000, payment_hash_4, nodes[5].node.create_inbound_payment_for_hash(payment_hash_4, None, 7200, 0).unwrap()); + send_along_route_with_secret(&nodes[1], route, &[&[&nodes[2], &nodes[3], &nodes[5]]], 1000000, payment_hash_4, nodes[5].node.create_inbound_payment_for_hash(payment_hash_4, None, 7200).unwrap()); // 8th HTLC: let (_, payment_hash_5, _) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 1000000); // 9th HTLC: let (route, _, _, _) = get_route_and_payment_hash!(nodes[1], nodes[5], ds_dust_limit*1000); - send_along_route_with_secret(&nodes[1], route, &[&[&nodes[2], &nodes[3], &nodes[5]]], ds_dust_limit*1000, payment_hash_5, nodes[5].node.create_inbound_payment_for_hash(payment_hash_5, None, 7200, 0).unwrap()); // not added < dust limit + HTLC tx fee + send_along_route_with_secret(&nodes[1], route, &[&[&nodes[2], &nodes[3], &nodes[5]]], ds_dust_limit*1000, payment_hash_5, nodes[5].node.create_inbound_payment_for_hash(payment_hash_5, None, 7200).unwrap()); // not added < dust limit + HTLC tx fee // 10th HTLC: let (_, payment_hash_6, _) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], ds_dust_limit*1000); // not added < dust limit + HTLC tx fee // 11th HTLC: let (route, _, _, _) = get_route_and_payment_hash!(nodes[1], nodes[5], 1000000); - send_along_route_with_secret(&nodes[1], route, &[&[&nodes[2], &nodes[3], &nodes[5]]], 1000000, payment_hash_6, nodes[5].node.create_inbound_payment_for_hash(payment_hash_6, None, 7200, 0).unwrap()); + send_along_route_with_secret(&nodes[1], route, &[&[&nodes[2], &nodes[3], &nodes[5]]], 1000000, payment_hash_6, nodes[5].node.create_inbound_payment_for_hash(payment_hash_6, None, 7200).unwrap()); // Double-check that six of the new HTLC were added // We now have six HTLCs pending over the dust limit and six HTLCs under the dust limit (ie, @@ -7164,7 +7164,7 @@ fn test_check_htlc_underpaying() { let payee = Payee::from_node_id(nodes[1].node.get_our_node_id()).with_features(InvoiceFeatures::known()); let route = get_route(&nodes[0].node.get_our_node_id(), &payee, nodes[0].network_graph, None, 10_000, TEST_FINAL_CLTV, nodes[0].logger, &scorer).unwrap(); let (_, our_payment_hash, _) = get_payment_preimage_hash!(nodes[0]); - let our_payment_secret = nodes[1].node.create_inbound_payment_for_hash(our_payment_hash, Some(100_000), 7200, 0).unwrap(); + let our_payment_secret = nodes[1].node.create_inbound_payment_for_hash(our_payment_hash, Some(100_000), 7200).unwrap(); nodes[0].node.send_payment(&route, our_payment_hash, &Some(our_payment_secret)).unwrap(); check_added_monitors!(nodes[0], 1); @@ -8018,7 +8018,7 @@ fn test_preimage_storage() { create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id; { - let (payment_hash, payment_secret) = nodes[1].node.create_inbound_payment(Some(100_000), 7200, 42); + let (payment_hash, payment_secret) = nodes[1].node.create_inbound_payment(Some(100_000), 7200); let (route, _, _, _) = get_route_and_payment_hash!(nodes[0], nodes[1], 100_000); nodes[0].node.send_payment(&route, payment_hash, &Some(payment_secret)).unwrap(); check_added_monitors!(nodes[0], 1); @@ -8035,8 +8035,7 @@ fn test_preimage_storage() { match events[0] { Event::PaymentReceived { ref purpose, .. } => { match &purpose { - PaymentPurpose::InvoicePayment { payment_preimage, user_payment_id, .. } => { - assert_eq!(*user_payment_id, 42); + PaymentPurpose::InvoicePayment { payment_preimage, .. } => { claim_payment(&nodes[0], &[&nodes[1]], payment_preimage.unwrap()); }, _ => panic!("expected PaymentPurpose::InvoicePayment") @@ -8056,11 +8055,11 @@ fn test_secret_timeout() { create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id; - let (payment_hash, payment_secret_1) = nodes[1].node.create_inbound_payment(Some(100_000), 2, 0); + let (payment_hash, payment_secret_1) = nodes[1].node.create_inbound_payment(Some(100_000), 2); // We should fail to register the same payment hash twice, at least until we've connected a // block with time 7200 + CHAN_CONFIRM_DEPTH + 1. - if let Err(APIError::APIMisuseError { err }) = nodes[1].node.create_inbound_payment_for_hash(payment_hash, Some(100_000), 2, 0) { + if let Err(APIError::APIMisuseError { err }) = nodes[1].node.create_inbound_payment_for_hash(payment_hash, Some(100_000), 2) { assert_eq!(err, "Duplicate payment hash"); } else { panic!(); } let mut block = { @@ -8075,16 +8074,16 @@ fn test_secret_timeout() { } }; connect_block(&nodes[1], &block); - if let Err(APIError::APIMisuseError { err }) = nodes[1].node.create_inbound_payment_for_hash(payment_hash, Some(100_000), 2, 0) { + if let Err(APIError::APIMisuseError { err }) = nodes[1].node.create_inbound_payment_for_hash(payment_hash, Some(100_000), 2) { assert_eq!(err, "Duplicate payment hash"); } else { panic!(); } // If we then connect the second block, we should be able to register the same payment hash - // again with a different user_payment_id (this time getting a new payment secret). + // again (this time getting a new payment secret). block.header.prev_blockhash = block.header.block_hash(); block.header.time += 1; connect_block(&nodes[1], &block); - let our_payment_secret = nodes[1].node.create_inbound_payment_for_hash(payment_hash, Some(100_000), 2, 42).unwrap(); + let our_payment_secret = nodes[1].node.create_inbound_payment_for_hash(payment_hash, Some(100_000), 2).unwrap(); assert_ne!(payment_secret_1, our_payment_secret); { @@ -8102,9 +8101,8 @@ fn test_secret_timeout() { let events = nodes[1].node.get_and_clear_pending_events(); assert_eq!(events.len(), 1); match events[0] { - Event::PaymentReceived { purpose: PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, user_payment_id }, .. } => { + Event::PaymentReceived { purpose: PaymentPurpose::InvoicePayment { payment_preimage, payment_secret }, .. } => { assert!(payment_preimage.is_none()); - assert_eq!(user_payment_id, 42); assert_eq!(payment_secret, our_payment_secret); // We don't actually have the payment preimage with which to claim this payment! }, @@ -8124,7 +8122,7 @@ fn test_bad_secret_hash() { let random_payment_hash = PaymentHash([42; 32]); let random_payment_secret = PaymentSecret([43; 32]); - let (our_payment_hash, our_payment_secret) = nodes[1].node.create_inbound_payment(Some(100_000), 2, 0); + let (our_payment_hash, our_payment_secret) = nodes[1].node.create_inbound_payment(Some(100_000), 2); let (route, _, _, _) = get_route_and_payment_hash!(nodes[0], nodes[1], 100_000); // All the below cases should end up being handled exactly identically, so we macro the diff --git a/lightning/src/util/events.rs b/lightning/src/util/events.rs index 6bbd6b994..29d294c5c 100644 --- a/lightning/src/util/events.rs +++ b/lightning/src/util/events.rs @@ -60,15 +60,6 @@ pub enum PaymentPurpose { /// [`ChannelManager::create_inbound_payment`]: crate::ln::channelmanager::ChannelManager::create_inbound_payment /// [`ChannelManager::create_inbound_payment_for_hash`]: crate::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash payment_secret: PaymentSecret, - /// This is the `user_payment_id` which was provided to - /// [`ChannelManager::create_inbound_payment_for_hash`] or - /// [`ChannelManager::create_inbound_payment`]. It has no meaning inside of LDK and is - /// simply copied here. It may be used to correlate PaymentReceived events with invoice - /// metadata stored elsewhere. - /// - /// [`ChannelManager::create_inbound_payment`]: crate::ln::channelmanager::ChannelManager::create_inbound_payment - /// [`ChannelManager::create_inbound_payment_for_hash`]: crate::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash - user_payment_id: u64, }, /// Because this is a spontaneous payment, the payer generated their own preimage rather than us /// (the payee) providing a preimage. @@ -352,13 +343,11 @@ impl Writeable for Event { &Event::PaymentReceived { ref payment_hash, ref amt, ref purpose } => { 1u8.write(writer)?; let mut payment_secret = None; - let mut user_payment_id = None; let payment_preimage; match &purpose { - PaymentPurpose::InvoicePayment { payment_preimage: preimage, payment_secret: secret, user_payment_id: id } => { + PaymentPurpose::InvoicePayment { payment_preimage: preimage, payment_secret: secret } => { payment_secret = Some(secret); payment_preimage = *preimage; - user_payment_id = Some(id); }, PaymentPurpose::SpontaneousPayment(preimage) => { payment_preimage = Some(*preimage); @@ -368,7 +357,7 @@ impl Writeable for Event { (0, payment_hash, required), (2, payment_secret, option), (4, amt, required), - (6, user_payment_id, option), + (6, 0u64, required), // user_payment_id required for compatibility with 0.0.103 and earlier (8, payment_preimage, option), }); }, @@ -457,21 +446,18 @@ impl MaybeReadable for Event { let mut payment_preimage = None; let mut payment_secret = None; let mut amt = 0; - let mut user_payment_id = None; + let mut _user_payment_id = None; // For compatibility with 0.0.103 and earlier read_tlv_fields!(reader, { (0, payment_hash, required), (2, payment_secret, option), (4, amt, required), - (6, user_payment_id, option), + (6, _user_payment_id, option), (8, payment_preimage, option), }); let purpose = match payment_secret { Some(secret) => PaymentPurpose::InvoicePayment { payment_preimage, - payment_secret: secret, - user_payment_id: if let Some(id) = user_payment_id { - id - } else { return Err(msgs::DecodeError::InvalidValue) } + payment_secret: secret }, None if payment_preimage.is_some() => PaymentPurpose::SpontaneousPayment(payment_preimage.unwrap()), None => return Err(msgs::DecodeError::InvalidValue), -- 2.39.5