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Remove historical state access from Serai

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Resolves https://github.com/serai-dex/serai/issues/694.
This commit is contained in:
Luke Parker
2025-11-18 20:50:32 -05:00
parent 6100c3ca90
commit 6b19780c7b
22 changed files with 531 additions and 622 deletions
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67
coordinator/cosign/src/lib.rs
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@@ -20,7 +20,7 @@ use serai_client_serai::{
},
Block,
},
Serai, TemporalSerai,
Serai, State,
};
use serai_db::*;
@@ -59,7 +59,7 @@ use delay::LatestCosignedBlockNumber;
pub(crate) struct GlobalSession {
pub(crate) start_block_number: u64,
pub(crate) sets: Vec<ExternalValidatorSet>,
pub(crate) keys: HashMap<ExternalNetworkId, SeraiAddress>,
pub(crate) keys: HashMap<ExternalNetworkId, Public>,
pub(crate) stakes: HashMap<ExternalNetworkId, u64>,
pub(crate) total_stake: u64,
}
@@ -121,60 +121,6 @@ create_db! {
}
}
/// Fetch the keys used for cosigning by a specific network.
async fn keys_for_network(
serai: &TemporalSerai<'_>,
network: ExternalNetworkId,
) -> Result<Option<(Session, KeyPair)>, String> {
let Some(latest_session) =
serai.validator_sets().current_session(network.into()).await.map_err(|e| format!("{e:?}"))?
else {
// If this network hasn't had a session declared, move on
return Ok(None);
};
// Get the keys for the latest session
if let Some(keys) = serai
.validator_sets()
.keys(ExternalValidatorSet { network, session: latest_session })
.await
.map_err(|e| format!("{e:?}"))?
{
return Ok(Some((latest_session, keys)));
}
// If the latest session has yet to set keys, use the prior session
if let Some(prior_session) = latest_session.0.checked_sub(1).map(Session) {
if let Some(keys) = serai
.validator_sets()
.keys(ExternalValidatorSet { network, session: prior_session })
.await
.map_err(|e| format!("{e:?}"))?
{
return Ok(Some((prior_session, keys)));
}
}
Ok(None)
}
/// Fetch the `ExternalValidatorSet`s, and their associated keys, used for cosigning as of this
/// block.
async fn cosigning_sets(
serai: &TemporalSerai<'_>,
) -> Result<Vec<(ExternalValidatorSet, Public)>, String> {
let mut sets = vec![];
for network in ExternalNetworkId::all() {
let Some((session, keys)) = keys_for_network(serai, network).await? else {
// If this network doesn't have usable keys, move on
continue;
};
sets.push((ExternalValidatorSet { network, session }, keys.0));
}
Ok(sets)
}
/// An object usable to request notable cosigns for a block.
pub trait RequestNotableCosigns: 'static + Send {
/// The error type which may be encountered when requesting notable cosigns.
@@ -379,13 +325,8 @@ impl<D: Db> Cosigning<D> {
// Check the cosign's signature
{
let key = Public::from({
let Some(key) = global_session.keys.get(&network) else {
Err(IntakeCosignError::NonParticipatingNetwork)?
};
*key
});
let key =
*global_session.keys.get(&network).ok_or(IntakeCosignError::NonParticipatingNetwork)?;
if !signed_cosign.verify_signature(key) {
Err(IntakeCosignError::InvalidSignature)?;
}