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Only break if Bob has requested amounts already

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We don't want Bob to be able to crash us by sending an out of
order message. Only break if Bob has not requested amounts.
This commit is contained in:
Tobin C. Harding 2020-10-27 09:59:30 +11:00
parent 5da84a3d48
commit b8130d23a6
1 changed files with 7 additions and 4 deletions
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11
swap/src/alice.rs
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@ -51,10 +51,13 @@ pub async fn swap(
swarm.send_amounts(channel, p);
}
OutEvent::Message0(msg) => {
debug!("Got message0 from Bob");
// TODO: Do this in a more Rusty/functional way.
message0 = msg;
break;
// We don't want Bob to be able to crash us by sending an out of
// order message. Keep looping if Bob has not requested amounts.
if last_amounts.is_some() {
// TODO: We should verify the amounts and notify Bob if they have changed.
message0 = msg;
break;
}
}
other => panic!("Unexpected event: {:?}", other),
};