mirror of
https://github.com/comit-network/xmr-btc-swap.git
synced 2024-10-01 01:45:40 -04:00
Move message0 response handler out of NB
This commit is contained in:
parent
4143394767
commit
143d8bc07d
@ -17,15 +17,15 @@ use libp2p::{
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NetworkBehaviour, PeerId,
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};
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use tracing::{debug, info};
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use xmr_btc::{alice::State0, bob};
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use xmr_btc::bob;
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mod amounts;
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pub mod event_loop;
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mod execution;
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mod message0;
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mod message1;
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mod message2;
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mod message3;
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mod negotiate;
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pub mod swap;
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pub type Swarm = libp2p::Swarm<Behaviour>;
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@ -60,7 +60,10 @@ pub enum OutEvent {
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// TODO (Franck): Change this to get both amounts so parties can verify the amounts are
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// expected early on.
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Request(amounts::OutEvent), // Not-uniform with Bob on purpose, ready for adding Xmr event.
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Message0(bob::Message0),
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Message0 {
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msg: bob::Message0,
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channel: ResponseChannel<AliceToBob>,
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},
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Message1 {
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msg: bob::Message1,
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channel: ResponseChannel<AliceToBob>,
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@ -91,7 +94,7 @@ impl From<amounts::OutEvent> for OutEvent {
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impl From<message0::OutEvent> for OutEvent {
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fn from(event: message0::OutEvent) -> Self {
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match event {
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message0::OutEvent::Msg(msg) => OutEvent::Message0(msg),
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message0::OutEvent::Msg { channel, msg } => OutEvent::Message0 { msg, channel },
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}
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}
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}
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@ -136,20 +139,6 @@ pub struct Behaviour {
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}
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impl Behaviour {
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pub fn new(state: State0) -> Self {
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let identity = Keypair::generate_ed25519();
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Self {
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pt: PeerTracker::default(),
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amounts: Amounts::default(),
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message0: Message0::new(state),
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message1: Message1::default(),
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message2: Message2::default(),
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message3: Message3::default(),
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identity,
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}
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}
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pub fn identity(&self) -> Keypair {
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self.identity.clone()
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}
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@ -165,6 +154,16 @@ impl Behaviour {
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info!("Sent amounts response");
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}
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/// Send Message0 to Bob in response to receiving his Message0.
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pub fn send_message0(
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&mut self,
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channel: ResponseChannel<AliceToBob>,
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msg: xmr_btc::alice::Message0,
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) {
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self.message0.send(channel, msg);
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debug!("Sent Message0");
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}
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/// Send Message1 to Bob in response to receiving his Message1.
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pub fn send_message1(
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&mut self,
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@ -185,3 +184,19 @@ impl Behaviour {
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debug!("Sent Message2");
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}
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}
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impl Default for Behaviour {
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fn default() -> Self {
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let identity = Keypair::generate_ed25519();
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Self {
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pt: PeerTracker::default(),
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amounts: Amounts::default(),
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message0: Message0::default(),
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message1: Message1::default(),
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message2: Message2::default(),
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message3: Message3::default(),
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identity,
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}
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}
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}
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@ -30,13 +30,14 @@ impl<T> Default for Channels<T> {
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}
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pub struct EventLoopHandle {
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msg0: Receiver<bob::Message0>,
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msg0: Receiver<(bob::Message0, ResponseChannel<AliceToBob>)>,
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msg1: Receiver<(bob::Message1, ResponseChannel<AliceToBob>)>,
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msg2: Receiver<(bob::Message2, ResponseChannel<AliceToBob>)>,
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msg3: Receiver<bob::Message3>,
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request: Receiver<crate::alice::amounts::OutEvent>,
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conn_established: Receiver<PeerId>,
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send_amounts: Sender<(ResponseChannel<AliceToBob>, SwapAmounts)>,
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send_msg0: Sender<(ResponseChannel<AliceToBob>, alice::Message0)>,
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send_msg1: Sender<(ResponseChannel<AliceToBob>, alice::Message1)>,
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send_msg2: Sender<(ResponseChannel<AliceToBob>, alice::Message2)>,
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}
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@ -49,7 +50,7 @@ impl EventLoopHandle {
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.ok_or_else(|| anyhow!("Failed to receive connection established from Bob"))
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}
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pub async fn recv_message0(&mut self) -> Result<bob::Message0> {
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pub async fn recv_message0(&mut self) -> Result<(bob::Message0, ResponseChannel<AliceToBob>)> {
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self.msg0
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.recv()
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.await
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@ -93,6 +94,15 @@ impl EventLoopHandle {
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Ok(())
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}
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pub async fn send_message0(
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&mut self,
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channel: ResponseChannel<AliceToBob>,
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msg: alice::Message0,
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) -> Result<()> {
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let _ = self.send_msg0.send((channel, msg)).await?;
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Ok(())
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}
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pub async fn send_message1(
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&mut self,
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channel: ResponseChannel<AliceToBob>,
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@ -114,13 +124,14 @@ impl EventLoopHandle {
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pub struct EventLoop {
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swarm: libp2p::Swarm<Behaviour>,
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msg0: Sender<bob::Message0>,
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msg0: Sender<(bob::Message0, ResponseChannel<AliceToBob>)>,
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msg1: Sender<(bob::Message1, ResponseChannel<AliceToBob>)>,
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msg2: Sender<(bob::Message2, ResponseChannel<AliceToBob>)>,
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msg3: Sender<bob::Message3>,
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request: Sender<crate::alice::amounts::OutEvent>,
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conn_established: Sender<PeerId>,
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send_amounts: Receiver<(ResponseChannel<AliceToBob>, SwapAmounts)>,
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send_msg0: Receiver<(ResponseChannel<AliceToBob>, alice::Message0)>,
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send_msg1: Receiver<(ResponseChannel<AliceToBob>, alice::Message1)>,
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send_msg2: Receiver<(ResponseChannel<AliceToBob>, alice::Message2)>,
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}
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@ -149,6 +160,7 @@ impl EventLoop {
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let request = Channels::new();
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let conn_established = Channels::new();
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let send_amounts = Channels::new();
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let send_msg0 = Channels::new();
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let send_msg1 = Channels::new();
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let send_msg2 = Channels::new();
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@ -161,6 +173,7 @@ impl EventLoop {
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request: request.sender,
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conn_established: conn_established.sender,
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send_amounts: send_amounts.receiver,
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send_msg0: send_msg0.receiver,
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send_msg1: send_msg1.receiver,
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send_msg2: send_msg2.receiver,
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};
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@ -173,6 +186,7 @@ impl EventLoop {
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request: request.receiver,
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conn_established: conn_established.receiver,
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send_amounts: send_amounts.sender,
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send_msg0: send_msg0.sender,
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send_msg1: send_msg1.sender,
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send_msg2: send_msg2.sender,
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};
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@ -188,8 +202,8 @@ impl EventLoop {
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OutEvent::ConnectionEstablished(alice) => {
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let _ = self.conn_established.send(alice).await;
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}
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OutEvent::Message0(msg) => {
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let _ = self.msg0.send(msg).await;
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OutEvent::Message0 { msg, channel } => {
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let _ = self.msg0.send((msg, channel)).await;
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}
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OutEvent::Message1 { msg, channel } => {
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let _ = self.msg1.send((msg, channel)).await;
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@ -210,6 +224,11 @@ impl EventLoop {
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self.swarm.send_amounts(channel, amounts);
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}
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},
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msg0 = self.send_msg0.next().fuse() => {
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if let Some((channel, msg)) = msg0 {
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self.swarm.send_message0(channel, msg);
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}
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},
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msg1 = self.send_msg1.next().fuse() => {
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if let Some((channel, msg)) = msg1 {
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self.swarm.send_message1(channel, msg);
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@ -6,7 +6,6 @@ use libp2p::{
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swarm::{NetworkBehaviourAction, NetworkBehaviourEventProcess, PollParameters},
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NetworkBehaviour,
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};
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use rand::rngs::OsRng;
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use std::{
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collections::VecDeque,
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task::{Context, Poll},
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@ -15,11 +14,15 @@ use std::{
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use tracing::{debug, error};
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use crate::network::request_response::{AliceToBob, BobToAlice, Codec, Message0Protocol, TIMEOUT};
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use xmr_btc::{alice::State0, bob};
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use libp2p::request_response::ResponseChannel;
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use xmr_btc::bob;
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#[derive(Debug)]
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pub enum OutEvent {
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Msg(bob::Message0),
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Msg {
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msg: bob::Message0,
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channel: ResponseChannel<AliceToBob>,
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},
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}
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/// A `NetworkBehaviour` that represents send/recv of message 0.
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@ -30,12 +33,28 @@ pub struct Message0 {
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rr: RequestResponse<Codec<Message0Protocol>>,
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#[behaviour(ignore)]
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events: VecDeque<OutEvent>,
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#[behaviour(ignore)]
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state: State0,
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}
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impl Message0 {
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pub fn new(state: State0) -> Self {
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pub fn send(&mut self, channel: ResponseChannel<AliceToBob>, msg: xmr_btc::alice::Message0) {
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let msg = AliceToBob::Message0(msg);
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self.rr.send_response(channel, msg);
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}
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fn poll(
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&mut self,
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_: &mut Context<'_>,
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_: &mut impl PollParameters,
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) -> Poll<NetworkBehaviourAction<RequestProtocol<Codec<Message0Protocol>>, OutEvent>> {
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if let Some(event) = self.events.pop_front() {
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return Poll::Ready(NetworkBehaviourAction::GenerateEvent(event));
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}
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Poll::Pending
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}
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}
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impl Default for Message0 {
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fn default() -> Self {
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let timeout = Duration::from_secs(TIMEOUT);
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let mut config = RequestResponseConfig::default();
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config.set_request_timeout(timeout);
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@ -47,21 +66,8 @@ impl Message0 {
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config,
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),
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events: Default::default(),
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state,
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}
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}
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fn poll(
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&mut self,
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_: &mut Context<'_>,
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_: &mut impl PollParameters,
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) -> Poll<NetworkBehaviourAction<RequestProtocol<Codec<Message0Protocol>>, OutEvent>> {
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if let Some(event) = self.events.pop_front() {
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return Poll::Ready(NetworkBehaviourAction::GenerateEvent(event));
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}
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Poll::Pending
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}
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}
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impl NetworkBehaviourEventProcess<RequestResponseEvent<BobToAlice, AliceToBob>> for Message0 {
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@ -76,13 +82,7 @@ impl NetworkBehaviourEventProcess<RequestResponseEvent<BobToAlice, AliceToBob>>
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} => {
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if let BobToAlice::Message0(msg) = request {
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debug!("Received Message0");
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// TODO(Franck): Move this business logic out of the network behaviour.
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let response = AliceToBob::Message0(self.state.next_message(&mut OsRng));
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self.rr.send_response(channel, response);
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debug!("Sent Message0");
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self.events.push_back(OutEvent::Msg(msg));
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self.events.push_back(OutEvent::Msg { msg, channel });
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}
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}
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RequestResponseEvent::Message {
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@ -10,6 +10,7 @@ use futures::{
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};
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use libp2p::request_response::ResponseChannel;
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use rand::rngs::OsRng;
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use sha2::Sha256;
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use std::{sync::Arc, time::Duration};
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use tokio::time::timeout;
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@ -59,7 +60,13 @@ pub async fn negotiate(
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.send_amounts(event.channel, amounts)
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.await?;
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let bob_message0 = timeout(config.bob_time_to_act, event_loop_handle.recv_message0()).await??;
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let (bob_message0, channel) =
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timeout(config.bob_time_to_act, event_loop_handle.recv_message0()).await??;
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let alice_message0 = state0.next_message(&mut OsRng);
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event_loop_handle
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.send_message0(channel, alice_message0)
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.await?;
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let state1 = state0.receive(bob_message0)?;
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@ -3,7 +3,7 @@
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use crate::{
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alice::{
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event_loop::EventLoopHandle,
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execution::{
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negotiate::{
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build_bitcoin_punish_transaction, build_bitcoin_redeem_transaction,
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extract_monero_private_key, lock_xmr, negotiate, publish_bitcoin_punish_transaction,
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publish_bitcoin_redeem_transaction, publish_cancel_transaction,
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@ -110,29 +110,6 @@ impl fmt::Display for AliceState {
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impl From<&AliceState> for state::Alice {
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fn from(alice_state: &AliceState) -> Self {
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match alice_state {
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AliceState::Started {
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amounts,
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state0:
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State0 {
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a,
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s_a,
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v_a,
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refund_timelock,
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punish_timelock,
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redeem_address,
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punish_address,
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..
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},
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} => Alice::Started {
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amounts: *amounts,
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a: a.clone(),
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s_a: *s_a,
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v_a: *v_a,
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refund_timelock: *refund_timelock,
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punish_timelock: *punish_timelock,
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redeem_address: redeem_address.clone(),
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punish_address: punish_address.clone(),
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},
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AliceState::Negotiated { state3, .. } => Alice::Negotiated(state3.clone()),
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AliceState::BtcLocked { state3, .. } => Alice::BtcLocked(state3.clone()),
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AliceState::XmrLocked { state3 } => Alice::XmrLocked(state3.clone()),
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@ -153,6 +130,10 @@ impl From<&AliceState> for state::Alice {
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AliceState::Cancelling { state3 } => Alice::Cancelling(state3.clone()),
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AliceState::Punished => Alice::SwapComplete,
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AliceState::SafelyAborted => Alice::SwapComplete,
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// todo: we may want to swap recovering from swaps that have not been negotiated
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AliceState::Started { .. } => {
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panic!("Alice attempted to save swap before being negotiated")
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}
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}
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}
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}
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@ -164,29 +145,6 @@ impl TryFrom<state::Swap> for AliceState {
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use AliceState::*;
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if let Swap::Alice(state) = db_state {
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let alice_state = match state {
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Alice::Started {
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amounts,
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a,
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s_a,
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v_a,
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refund_timelock,
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punish_timelock,
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redeem_address,
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punish_address,
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} => Started {
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amounts,
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state0: State0 {
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a,
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s_a,
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v_a,
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btc: amounts.btc,
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xmr: amounts.xmr,
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refund_timelock,
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punish_timelock,
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redeem_address,
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punish_address,
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},
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},
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Alice::Negotiated(state3) => Negotiated {
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channel: None,
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amounts: SwapAmounts {
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|
@ -97,11 +97,8 @@ async fn main() -> Result<()> {
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);
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(
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AliceState::Started {
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amounts,
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state0: state0.clone(),
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},
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alice::Behaviour::new(state0),
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AliceState::Started { amounts, state0 },
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alice::Behaviour::default(),
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)
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};
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|
@ -20,11 +20,11 @@ use xmr_btc::{
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mod amounts;
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pub mod event_loop;
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mod execution;
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mod message0;
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mod message1;
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mod message2;
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mod message3;
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mod negotiate;
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pub mod swap;
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pub type Swarm = libp2p::Swarm<Behaviour>;
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|
@ -1,5 +1,5 @@
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use crate::{
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bob::{event_loop::EventLoopHandle, execution::negotiate},
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bob::{event_loop::EventLoopHandle, negotiate::negotiate},
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state,
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state::Bob,
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storage::Database,
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@ -59,15 +59,10 @@ impl fmt::Display for BobState {
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impl From<BobState> for state::Bob {
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fn from(bob_state: BobState) -> Self {
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match bob_state {
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BobState::Started {
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state0,
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amounts,
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addr,
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} => Bob::Started {
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state0,
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amounts,
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addr,
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},
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BobState::Started { .. } => {
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// TODO: Do we want to resume just started swaps
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unimplemented!("Cannot save a swap that has just started")
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}
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BobState::Negotiated(state2, peer_id) => Bob::Negotiated { state2, peer_id },
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BobState::BtcLocked(state3, peer_id) => Bob::BtcLocked { state3, peer_id },
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BobState::XmrLocked(state4, peer_id) => Bob::XmrLocked { state4, peer_id },
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@ -85,15 +80,6 @@ impl From<BobState> for state::Bob {
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impl From<state::Bob> for BobState {
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fn from(bob: Bob) -> Self {
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match bob {
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Bob::Started {
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state0,
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amounts,
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addr,
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} => BobState::Started {
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state0,
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amounts,
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addr,
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},
|
||||
Bob::Negotiated { state2, peer_id } => BobState::Negotiated(state2, peer_id),
|
||||
Bob::BtcLocked { state3, peer_id } => BobState::BtcLocked(state3, peer_id),
|
||||
Bob::XmrLocked { state4, peer_id } => BobState::XmrLocked(state4, peer_id),
|
||||
|
@ -1,10 +1,7 @@
|
||||
use crate::SwapAmounts;
|
||||
use libp2p::{core::Multiaddr, PeerId};
|
||||
use libp2p::PeerId;
|
||||
use serde::{Deserialize, Serialize};
|
||||
use std::fmt::Display;
|
||||
use xmr_btc::{
|
||||
alice, bitcoin::EncryptedSignature, bob, cross_curve_dleq, monero, serde::monero_private_key,
|
||||
};
|
||||
use xmr_btc::{alice, bitcoin::EncryptedSignature, bob, monero, serde::monero_private_key};
|
||||
|
||||
#[allow(clippy::large_enum_variant)]
|
||||
#[derive(Clone, Debug, Deserialize, Serialize, PartialEq)]
|
||||
@ -16,18 +13,6 @@ pub enum Swap {
|
||||
#[allow(clippy::large_enum_variant)]
|
||||
#[derive(Clone, Debug, Deserialize, Serialize, PartialEq)]
|
||||
pub enum Alice {
|
||||
Started {
|
||||
amounts: SwapAmounts,
|
||||
// TODO: This should not be saved, instead always derive it from a seed (and that seed file
|
||||
// is the only thing that has to be kept secure)
|
||||
a: crate::bitcoin::SecretKey,
|
||||
s_a: cross_curve_dleq::Scalar,
|
||||
v_a: monero::PrivateViewKey,
|
||||
refund_timelock: u32,
|
||||
punish_timelock: u32,
|
||||
redeem_address: ::bitcoin::Address,
|
||||
punish_address: ::bitcoin::Address,
|
||||
},
|
||||
Negotiated(alice::State3),
|
||||
BtcLocked(alice::State3),
|
||||
XmrLocked(alice::State3),
|
||||
@ -54,11 +39,6 @@ pub enum Alice {
|
||||
|
||||
#[derive(Clone, Debug, Deserialize, Serialize, PartialEq)]
|
||||
pub enum Bob {
|
||||
Started {
|
||||
state0: bob::State0,
|
||||
amounts: SwapAmounts,
|
||||
addr: Multiaddr,
|
||||
},
|
||||
Negotiated {
|
||||
state2: bob::State2,
|
||||
#[serde(with = "crate::serde::peer_id")]
|
||||
@ -108,7 +88,6 @@ impl Display for Swap {
|
||||
impl Display for Alice {
|
||||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||
match self {
|
||||
Alice::Started { .. } => f.write_str("Swap started"),
|
||||
Alice::Negotiated(_) => f.write_str("Handshake complete"),
|
||||
Alice::BtcLocked(_) => f.write_str("Bitcoin locked"),
|
||||
Alice::XmrLocked(_) => f.write_str("Monero locked"),
|
||||
@ -132,7 +111,6 @@ impl Display for Bob {
|
||||
}
|
||||
Bob::BtcRedeemed(_) => f.write_str("Monero redeemable"),
|
||||
Bob::SwapComplete => f.write_str("Swap complete"),
|
||||
Bob::Started { .. } => f.write_str("Swap started"),
|
||||
Bob::EncSigSent { .. } => f.write_str("Encrypted signature sent"),
|
||||
}
|
||||
}
|
||||
|
@ -123,12 +123,9 @@ pub async fn init_alice_eventloop(
|
||||
redeem_address,
|
||||
punish_address,
|
||||
);
|
||||
let start_state = AliceState::Started {
|
||||
amounts,
|
||||
state0: state0.clone(),
|
||||
};
|
||||
let start_state = AliceState::Started { amounts, state0 };
|
||||
|
||||
let alice_behaviour = alice::Behaviour::new(state0);
|
||||
let alice_behaviour = alice::Behaviour::default();
|
||||
let alice_transport = build(alice_behaviour.identity()).unwrap();
|
||||
|
||||
let (swarm_driver, handle) =
|
||||
|
Loading…
Reference in New Issue
Block a user