//! few other things.
use chain::keysinterface::SpendableOutputDescriptor;
+use ln::channelmanager::PaymentId;
use ln::msgs;
use ln::msgs::DecodeError;
use ln::{PaymentPreimage, PaymentHash, PaymentSecret};
use routing::network_graph::NetworkUpdate;
use util::ser::{BigSize, FixedLengthReader, Writeable, Writer, MaybeReadable, Readable, VecReadWrapper, VecWriteWrapper};
+use routing::router::{RouteHop, RouteParameters};
+use bitcoin::Transaction;
use bitcoin::blockdata::script::Script;
-
+use bitcoin::hashes::Hash;
+use bitcoin::hashes::sha256::Hash as Sha256;
use bitcoin::secp256k1::key::PublicKey;
use io;
use prelude::*;
use core::time::Duration;
use core::ops::Deref;
+use sync::Arc;
/// Some information provided on receipt of payment depends on whether the payment received is a
/// spontaneous payment or a "conventional" lightning payment that's paying an invoice.
channel_value_satoshis: u64,
/// The script which should be used in the transaction output.
output_script: Script,
- /// The value passed in to ChannelManager::create_channel
+ /// The `user_channel_id` value passed in to [`ChannelManager::create_channel`], or 0 for
+ /// an inbound channel.
+ ///
+ /// [`ChannelManager::create_channel`]: crate::ln::channelmanager::ChannelManager::create_channel
user_channel_id: u64,
},
/// Indicates we've received money! Just gotta dig out that payment preimage and feed it to
- /// ChannelManager::claim_funds to get it....
- /// Note that if the preimage is not known or the amount paid is incorrect, you should call
- /// ChannelManager::fail_htlc_backwards to free up resources for this HTLC and avoid
+ /// [`ChannelManager::claim_funds`] to get it....
+ /// Note that if the preimage is not known, you should call
+ /// [`ChannelManager::fail_htlc_backwards`] to free up resources for this HTLC and avoid
/// network congestion.
- /// The amount paid should be considered 'incorrect' when it is less than or more than twice
- /// the amount expected.
- /// If you fail to call either ChannelManager::claim_funds or
- /// ChannelManager::fail_htlc_backwards within the HTLC's timeout, the HTLC will be
+ /// If you fail to call either [`ChannelManager::claim_funds`] or
+ /// [`ChannelManager::fail_htlc_backwards`] within the HTLC's timeout, the HTLC will be
/// automatically failed.
+ ///
+ /// [`ChannelManager::claim_funds`]: crate::ln::channelmanager::ChannelManager::claim_funds
+ /// [`ChannelManager::fail_htlc_backwards`]: crate::ln::channelmanager::ChannelManager::fail_htlc_backwards
PaymentReceived {
/// The hash for which the preimage should be handed to the ChannelManager.
payment_hash: PaymentHash,
- /// The value, in thousandths of a satoshi, that this payment is for. Note that you must
- /// compare this to the expected value before accepting the payment (as otherwise you are
- /// providing proof-of-payment for less than the value you expected!).
+ /// The value, in thousandths of a satoshi, that this payment is for.
amt: u64,
/// Information for claiming this received payment, based on whether the purpose of the
/// payment is to pay an invoice or to send a spontaneous payment.
/// Indicates an outbound payment we made succeeded (i.e. it made it all the way to its target
/// and we got back the payment preimage for it).
///
- /// Note for MPP payments: in rare cases, this event may be preceded by a `PaymentFailed` event.
- /// In this situation, you SHOULD treat this payment as having succeeded.
+ /// Note for MPP payments: in rare cases, this event may be preceded by a `PaymentPathFailed`
+ /// event. In this situation, you SHOULD treat this payment as having succeeded.
PaymentSent {
+ /// The id returned by [`ChannelManager::send_payment`] and used with
+ /// [`ChannelManager::retry_payment`].
+ ///
+ /// [`ChannelManager::send_payment`]: crate::ln::channelmanager::ChannelManager::send_payment
+ /// [`ChannelManager::retry_payment`]: crate::ln::channelmanager::ChannelManager::retry_payment
+ payment_id: Option<PaymentId>,
/// The preimage to the hash given to ChannelManager::send_payment.
/// Note that this serves as a payment receipt, if you wish to have such a thing, you must
/// store it somehow!
payment_preimage: PaymentPreimage,
+ /// The hash which was given to [`ChannelManager::send_payment`].
+ ///
+ /// [`ChannelManager::send_payment`]: crate::ln::channelmanager::ChannelManager::send_payment
+ payment_hash: PaymentHash,
},
/// Indicates an outbound payment we made failed. Probably some intermediary node dropped
/// something. You may wish to retry with a different route.
- PaymentFailed {
+ PaymentPathFailed {
+ /// The id returned by [`ChannelManager::send_payment`] and used with
+ /// [`ChannelManager::retry_payment`].
+ ///
+ /// [`ChannelManager::send_payment`]: crate::ln::channelmanager::ChannelManager::send_payment
+ /// [`ChannelManager::retry_payment`]: crate::ln::channelmanager::ChannelManager::retry_payment
+ payment_id: Option<PaymentId>,
/// The hash which was given to ChannelManager::send_payment.
payment_hash: PaymentHash,
/// Indicates the payment was rejected for some reason by the recipient. This implies that
/// failed. This will be set to false if (1) this is an MPP payment and (2) other parts of the
/// larger MPP payment were still in flight when this event was generated.
all_paths_failed: bool,
+ /// The payment path that failed.
+ path: Vec<RouteHop>,
+ /// The channel responsible for the failed payment path.
+ ///
+ /// If this is `Some`, then the corresponding channel should be avoided when the payment is
+ /// retried. May be `None` for older [`Event`] serializations.
+ short_channel_id: Option<u64>,
+ /// Parameters needed to compute a new [`Route`] when retrying the failed payment path.
+ ///
+ /// See [`find_route`] for details.
+ ///
+ /// [`Route`]: crate::routing::router::Route
+ /// [`find_route`]: crate::routing::router::find_route
+ retry: Option<RouteParameters>,
#[cfg(test)]
error_code: Option<u16>,
#[cfg(test)]
/// The channel_id of the channel which has been closed. Note that on-chain transactions
/// resolving the channel are likely still awaiting confirmation.
channel_id: [u8; 32],
+ /// The `user_channel_id` value passed in to [`ChannelManager::create_channel`], or 0 for
+ /// an inbound channel. This will always be zero for objects serialized with LDK versions
+ /// prior to 0.0.102.
+ ///
+ /// [`ChannelManager::create_channel`]: crate::ln::channelmanager::ChannelManager::create_channel
+ user_channel_id: u64,
/// The reason the channel was closed.
reason: ClosureReason
+ },
+ /// Used to indicate to the user that they can abandon the funding transaction and recycle the
+ /// inputs for another purpose.
+ DiscardFunding {
+ /// The channel_id of the channel which has been closed.
+ channel_id: [u8; 32],
+ /// The full transaction received from the user
+ transaction: Transaction
}
}
(8, payment_preimage, option),
});
},
- &Event::PaymentSent { ref payment_preimage } => {
+ &Event::PaymentSent { ref payment_id, ref payment_preimage, ref payment_hash} => {
2u8.write(writer)?;
write_tlv_fields!(writer, {
(0, payment_preimage, required),
+ (1, payment_hash, required),
+ (3, payment_id, option),
});
},
- &Event::PaymentFailed { ref payment_hash, ref rejected_by_dest, ref network_update, ref all_paths_failed,
+ &Event::PaymentPathFailed {
+ ref payment_id, ref payment_hash, ref rejected_by_dest, ref network_update,
+ ref all_paths_failed, ref path, ref short_channel_id, ref retry,
#[cfg(test)]
ref error_code,
#[cfg(test)]
(1, network_update, option),
(2, rejected_by_dest, required),
(3, all_paths_failed, required),
+ (5, path, vec_type),
+ (7, short_channel_id, option),
+ (9, retry, option),
+ (11, payment_id, option),
});
},
&Event::PendingHTLCsForwardable { time_forwardable: _ } => {
4u8.write(writer)?;
- write_tlv_fields!(writer, {});
- // We don't write the time_fordwardable out at all, as we presume when the user
- // deserializes us at least that much time has elapsed.
+ // Note that we now ignore these on the read end as we'll re-generate them in
+ // ChannelManager, we write them here only for backwards compatibility.
},
&Event::SpendableOutputs { ref outputs } => {
5u8.write(writer)?;
(2, claim_from_onchain_tx, required),
});
},
- &Event::ChannelClosed { ref channel_id, ref reason } => {
+ &Event::ChannelClosed { ref channel_id, ref user_channel_id, ref reason } => {
9u8.write(writer)?;
write_tlv_fields!(writer, {
(0, channel_id, required),
+ (1, user_channel_id, required),
(2, reason, required)
});
},
+ &Event::DiscardFunding { ref channel_id, ref transaction } => {
+ 11u8.write(writer)?;
+ write_tlv_fields!(writer, {
+ (0, channel_id, required),
+ (2, transaction, required)
+ })
+ },
// Note that, going forward, all new events must only write data inside of
// `write_tlv_fields`. Versions 0.0.101+ will ignore odd-numbered events that write
// data via `write_tlv_fields`.
2u8 => {
let f = || {
let mut payment_preimage = PaymentPreimage([0; 32]);
+ let mut payment_hash = None;
+ let mut payment_id = None;
read_tlv_fields!(reader, {
(0, payment_preimage, required),
+ (1, payment_hash, option),
+ (3, payment_id, option),
});
+ if payment_hash.is_none() {
+ payment_hash = Some(PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner()));
+ }
Ok(Some(Event::PaymentSent {
+ payment_id,
payment_preimage,
+ payment_hash: payment_hash.unwrap(),
}))
};
f()
let mut rejected_by_dest = false;
let mut network_update = None;
let mut all_paths_failed = Some(true);
+ let mut path: Option<Vec<RouteHop>> = Some(vec![]);
+ let mut short_channel_id = None;
+ let mut retry = None;
+ let mut payment_id = None;
read_tlv_fields!(reader, {
(0, payment_hash, required),
(1, network_update, ignorable),
(2, rejected_by_dest, required),
(3, all_paths_failed, option),
+ (5, path, vec_type),
+ (7, short_channel_id, option),
+ (9, retry, option),
+ (11, payment_id, option),
});
- Ok(Some(Event::PaymentFailed {
+ Ok(Some(Event::PaymentPathFailed {
+ payment_id,
payment_hash,
rejected_by_dest,
network_update,
all_paths_failed: all_paths_failed.unwrap(),
+ path: path.unwrap(),
+ short_channel_id,
+ retry,
#[cfg(test)]
error_code,
#[cfg(test)]
};
f()
},
- 4u8 => {
- let f = || {
- read_tlv_fields!(reader, {});
- Ok(Some(Event::PendingHTLCsForwardable {
- time_forwardable: Duration::from_secs(0)
- }))
- };
- f()
- },
+ 4u8 => Ok(None),
5u8 => {
let f = || {
let mut outputs = VecReadWrapper(Vec::new());
f()
},
9u8 => {
- let mut channel_id = [0; 32];
- let mut reason = None;
- read_tlv_fields!(reader, {
- (0, channel_id, required),
- (2, reason, ignorable),
- });
- if reason.is_none() { return Ok(None); }
- Ok(Some(Event::ChannelClosed { channel_id, reason: reason.unwrap() }))
+ let f = || {
+ let mut channel_id = [0; 32];
+ let mut reason = None;
+ let mut user_channel_id_opt = None;
+ read_tlv_fields!(reader, {
+ (0, channel_id, required),
+ (1, user_channel_id_opt, option),
+ (2, reason, ignorable),
+ });
+ if reason.is_none() { return Ok(None); }
+ let user_channel_id = if let Some(id) = user_channel_id_opt { id } else { 0 };
+ Ok(Some(Event::ChannelClosed { channel_id, user_channel_id, reason: reason.unwrap() }))
+ };
+ f()
+ },
+ 11u8 => {
+ let f = || {
+ let mut channel_id = [0; 32];
+ let mut transaction = Transaction{ version: 2, lock_time: 0, input: Vec::new(), output: Vec::new() };
+ read_tlv_fields!(reader, {
+ (0, channel_id, required),
+ (2, transaction, required),
+ });
+ Ok(Some(Event::DiscardFunding { channel_id, transaction } ))
+ };
+ f()
},
// Versions prior to 0.0.100 did not ignore odd types, instead returning InvalidValue.
// Version 0.0.100 failed to properly ignore odd types, possibly resulting in corrupt
self(event)
}
}
+
+impl<T: EventHandler> EventHandler for Arc<T> {
+ fn handle_event(&self, event: &Event) {
+ self.deref().handle_event(event)
+ }
+}
projects / rust-lightning / blobdiff