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wow-btc-swap/swap/src/protocol/bob/message2.rs

104 lines
3.2 KiB

use crate::{
network::request_response::{AliceToBob, BobToAlice, Codec, Message2Protocol, TIMEOUT},
protocol::alice,
};
use ecdsa_fun::Signature;
use libp2p::{
request_response::{
handler::RequestProtocol, ProtocolSupport, RequestResponse, RequestResponseConfig,
RequestResponseEvent, RequestResponseMessage,
},
swarm::{NetworkBehaviourAction, NetworkBehaviourEventProcess, PollParameters},
NetworkBehaviour, PeerId,
};
use serde::{Deserialize, Serialize};
use std::{
collections::VecDeque,
task::{Context, Poll},
time::Duration,
};
use tracing::{debug, error};
#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct Message2 {
pub(crate) tx_punish_sig: Signature,
pub(crate) tx_cancel_sig: Signature,
}
#[derive(Debug)]
pub enum OutEvent {
Msg(alice::Message2),
}
/// A `NetworkBehaviour` that represents sending message 2 to Alice.
#[derive(NetworkBehaviour)]
#[behaviour(out_event = "OutEvent", poll_method = "poll")]
#[allow(missing_debug_implementations)]
pub struct Behaviour {
rr: RequestResponse<Codec<Message2Protocol>>,
#[behaviour(ignore)]
events: VecDeque<OutEvent>,
}
impl Behaviour {
pub fn send(&mut self, alice: PeerId, msg: Message2) {
let msg = BobToAlice::Message2(msg);
let _id = self.rr.send_request(&alice, msg);
}
fn poll(
&mut self,
_: &mut Context<'_>,
_: &mut impl PollParameters,
) -> Poll<NetworkBehaviourAction<RequestProtocol<Codec<Message2Protocol>>, OutEvent>> {
if let Some(event) = self.events.pop_front() {
return Poll::Ready(NetworkBehaviourAction::GenerateEvent(event));
}
Poll::Pending
}
}
impl Default for Behaviour {
fn default() -> Self {
let timeout = Duration::from_secs(TIMEOUT);
let mut config = RequestResponseConfig::default();
config.set_request_timeout(timeout);
Self {
rr: RequestResponse::new(
Codec::default(),
vec![(Message2Protocol, ProtocolSupport::Full)],
config,
),
events: VecDeque::default(),
}
}
}
impl NetworkBehaviourEventProcess<RequestResponseEvent<BobToAlice, AliceToBob>> for Behaviour {
fn inject_event(&mut self, event: RequestResponseEvent<BobToAlice, AliceToBob>) {
match event {
RequestResponseEvent::Message {
message: RequestResponseMessage::Request { .. },
..
} => panic!("Bob should never get a request from Alice"),
RequestResponseEvent::Message {
message: RequestResponseMessage::Response { response, .. },
..
} => {
if let AliceToBob::Message2(msg) = response {
debug!("Received Message2");
self.events.push_back(OutEvent::Msg(msg));
}
}
RequestResponseEvent::InboundFailure { error, .. } => {
error!("Inbound failure: {:?}", error);
}
RequestResponseEvent::OutboundFailure { error, .. } => {
error!("Outbound failure: {:?}", error);
}
}
}
}