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Refund swap if resumed from a step that requires further communication

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This commit is contained in:
Franck Royer 2020-12-02 14:58:17 +11:00
parent 744fc625aa
commit fb83d1fbaf
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GPG Key ID: A82ED75A8DFC50A4
1 changed files with 73 additions and 37 deletions
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110
swap/src/alice/swap.rs
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@ -44,12 +44,12 @@ pub enum AliceState {
state0: State0,
},
Negotiated {
channel: ResponseChannel<AliceToBob>,
channel: Option<ResponseChannel<AliceToBob>>,
amounts: SwapAmounts,
state3: State3,
},
BtcLocked {
channel: ResponseChannel<AliceToBob>,
channel: Option<ResponseChannel<AliceToBob>>,
amounts: SwapAmounts,
state3: State3,
},
@ -157,7 +157,7 @@ pub async fn run_until(
run_until(
AliceState::Negotiated {
channel,
channel: Some(channel),
amounts,
state3,
},
@ -174,48 +174,84 @@ pub async fn run_until(
channel,
amounts,
} => {
let _ =
wait_for_locked_bitcoin(state3.tx_lock.txid(), bitcoin_wallet.clone(), config)
match channel {
Some(channel) => {
let _ = wait_for_locked_bitcoin(
state3.tx_lock.txid(),
bitcoin_wallet.clone(),
config,
)
.await?;
run_until(
AliceState::BtcLocked {
channel,
amounts,
state3,
},
is_target_state,
swarm,
bitcoin_wallet,
monero_wallet,
config,
)
.await
run_until(
AliceState::BtcLocked {
channel: Some(channel),
amounts,
state3,
},
is_target_state,
swarm,
bitcoin_wallet,
monero_wallet,
config,
)
.await
}
None => {
tracing::info!("Cannot resume swap from negotiated state, aborting");
// Alice did not lock Xmr yet
run_until(
AliceState::SafelyAborted,
is_target_state,
swarm,
bitcoin_wallet,
monero_wallet,
config,
)
.await
}
}
}
AliceState::BtcLocked {
channel,
amounts,
state3,
} => {
lock_xmr(
channel,
amounts,
state3.clone(),
&mut swarm,
monero_wallet.clone(),
)
.await?;
} => match channel {
Some(channel) => {
lock_xmr(
channel,
amounts,
state3.clone(),
&mut swarm,
monero_wallet.clone(),
)
.await?;
run_until(
AliceState::XmrLocked { state3 },
is_target_state,
swarm,
bitcoin_wallet,
monero_wallet,
config,
)
.await
}
run_until(
AliceState::XmrLocked { state3 },
is_target_state,
swarm,
bitcoin_wallet,
monero_wallet,
config,
)
.await
}
None => {
tracing::info!("Cannot resume swap from BTC locked state, aborting");
// Alice did not lock Xmr yet
swap(
AliceState::SafelyAborted,
swarm,
bitcoin_wallet,
monero_wallet,
config,
)
.await
}
},
AliceState::XmrLocked { state3 } => {
// Our Monero is locked, we need to go through the cancellation process if this
// step fails