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f6e8bc3352
* Revert "Correct the prior documented TOCTOU" This reverts commitd50fe87801. * Correct the prior documented TOCTOUd50fe87801edited the challenge for the Batch to fix it. This won't produce Batch n+1 until Batch n is successfully published and verified. It's an alternative strategy able to be reviewed, with a much smaller impact to scope.
61 lines
1.5 KiB
Rust
61 lines
1.5 KiB
Rust
use blake2::{
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digest::{consts::U32, Digest},
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Blake2b,
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};
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use scale::Encode;
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use sp_core::Pair;
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use serai_client::{
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primitives::insecure_pair_from_name,
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validator_sets::primitives::{Session, ValidatorSet},
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in_instructions::{
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primitives::{Batch, SignedBatch, batch_message},
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InInstructionsEvent,
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},
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Serai,
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};
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use crate::common::{serai, tx::publish_tx, validator_sets::set_validator_set_keys};
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#[allow(dead_code)]
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pub async fn provide_batch(batch: Batch) -> [u8; 32] {
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let serai = serai().await;
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// TODO: Get the latest session
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let set = ValidatorSet { session: Session(0), network: batch.network };
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let pair = insecure_pair_from_name(&format!("ValidatorSet {:?}", set));
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let keys = if let Some(keys) =
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serai.get_keys(set, serai.get_latest_block_hash().await.unwrap()).await.unwrap()
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{
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keys
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} else {
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let keys = (pair.public(), vec![].try_into().unwrap());
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set_validator_set_keys(set, keys.clone()).await;
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keys
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};
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assert_eq!(keys.0, pair.public());
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let block = publish_tx(&Serai::execute_batch(SignedBatch {
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batch: batch.clone(),
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signature: pair.sign(&batch_message(&batch)),
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}))
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.await;
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let batches = serai.get_batch_events(block).await.unwrap();
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// TODO: impl From<Batch> for BatchEvent?
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assert_eq!(
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batches,
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vec![InInstructionsEvent::Batch {
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network: batch.network,
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id: batch.id,
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block: batch.block,
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instructions_hash: Blake2b::<U32>::digest(batch.instructions.encode()).into(),
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}],
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);
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// TODO: Check the tokens events
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block
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}
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