Ecosystem/serai
Ecosystem/serai
1
0
Fork 0
mirror of https://github.com/serai-dex/serai.git synced 2025-01-22 18:54:40 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Check a queued key has never been queued before

Browse source 
Re-queueing should only happen with a malicious supermajority and breaks
indexing by the key.
This commit is contained in:
Luke Parker 2024-08-29 23:47:43 -04:00
parent e26da1ec34
commit 41a74cb513
1 changed files with 6 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
processor/scanner/src/db.rs
View file

@ -72,6 +72,8 @@ impl<S: ScannerFeed> OutputWithInInstruction<S> {
create_db!(
ScannerGlobal {
QueuedKey: <K: Encode>(key: K) -> (),
ActiveKeys: <K: Borshy>() -> Vec<SeraiKeyDbEntry<K>>,
RetireAt: <K: Encode>(key: K) -> u64,
@ -120,7 +122,10 @@ impl<S: ScannerFeed> ScannerGlobalDb<S> {
// Set the block which has a key activate as notable
NotableBlock::set(txn, activation_block_number, &());
// TODO: Panic if we've ever seen this key before
// Check this key has never been queued before
// This should only happen if a malicious supermajority collude, and breaks indexing by the key
assert!(QueuedKey::get(txn, EncodableG(key)).is_none(), "key being queued was prior queued");
QueuedKey::set(txn, EncodableG(key), &());
// Fetch the existing keys
let mut keys: Vec<SeraiKeyDbEntry<EncodableG<KeyFor<S>>>> =