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Reintroduce header chain trait (#1622)

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* reintroduce header chain trait

* renive BridgedChainWithMessages::maximal_extrinsic_size
This commit is contained in:
Svyatoslav Nikolsky
2022-11-11 15:31:01 +03:00
committed by Bastian Köcher
parent 3e00c5c022
commit 6dcecf4425
19 changed files with 648 additions and 831 deletions
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bridges/modules/grandpa/src/lib.rs
+10 -22
View File
@@ -38,7 +38,7 @@
use storage_types::StoredAuthoritySet;
use bp_header_chain::{justification::GrandpaJustification, InitializationData};
use bp_header_chain::{justification::GrandpaJustification, HeaderChain, InitializationData};
use bp_runtime::{
BlockNumberOf, BoundedStorageValue, Chain, HashOf, HasherOf, HeaderOf, OwnedBridgeModule,
};
@@ -67,6 +67,8 @@ pub use weights::WeightInfo;
/// The target that will be used when publishing logs related to this pallet.
pub const LOG_TARGET: &str = "runtime::bridge-grandpa";
/// Bridged chain from the pallet configuration.
pub type BridgedChain<T, I> = <T as Config<I>>::BridgedChain;
/// Block number of the bridged chain.
pub type BridgedBlockNumber<T, I> = BlockNumberOf<<T as Config<I>>::BridgedChain>;
/// Block hash of the bridged chain.
@@ -382,8 +384,6 @@ pub mod pallet {
TooManyRequests,
/// The header being imported is older than the best finalized header known to the pallet.
OldHeader,
/// The header is unknown to the pallet.
UnknownHeader,
/// The scheduled authority set change found in the header is unsupported by the pallet.
///
/// This is the case for non-standard (e.g forced) authority set changes.
@@ -392,8 +392,6 @@ pub mod pallet {
NotInitialized,
/// The pallet has already been initialized.
AlreadyInitialized,
/// The storage proof doesn't contains storage root. So it is invalid for given header.
StorageRootMismatch,
/// Too many authorities in the set.
TooManyAuthoritiesInSet,
/// Too large header.
@@ -581,9 +579,6 @@ pub mod pallet {
impl<T: Config<I>, I: 'static> Pallet<T, I> {
/// Get the best finalized header the pallet knows of.
///
/// Returns a dummy header if there is no best header. This can only happen
/// if the pallet has not been initialized yet.
pub fn best_finalized() -> Option<BridgedHeader<T, I>> {
let (_, hash) = <BestFinalized<T, I>>::get()?;
<ImportedHeaders<T, I>>::get(hash).map(|h| h.into_inner())
@@ -593,21 +588,14 @@ impl<T: Config<I>, I: 'static> Pallet<T, I> {
pub fn is_known_header(hash: BridgedBlockHash<T, I>) -> bool {
<ImportedHeaders<T, I>>::contains_key(hash)
}
}
/// Verify that the passed storage proof is valid, given it is crafted using
/// known finalized header. If the proof is valid, then the `parse` callback
/// is called and the function returns its result.
pub fn parse_finalized_storage_proof<R>(
hash: BridgedBlockHash<T, I>,
storage_proof: sp_trie::StorageProof,
parse: impl FnOnce(bp_runtime::StorageProofChecker<BridgedBlockHasher<T, I>>) -> R,
) -> Result<R, sp_runtime::DispatchError> {
let header = <ImportedHeaders<T, I>>::get(hash).ok_or(Error::<T, I>::UnknownHeader)?;
let storage_proof_checker =
bp_runtime::StorageProofChecker::new(*header.state_root(), storage_proof)
.map_err(|_| Error::<T, I>::StorageRootMismatch)?;
/// Bridge GRANDPA pallet as header chain.
pub type GrandpaChainHeaders<T, I> = Pallet<T, I>;
Ok(parse(storage_proof_checker))
impl<T: Config<I>, I: 'static> HeaderChain<BridgedChain<T, I>> for GrandpaChainHeaders<T, I> {
fn finalized_header(hash: HashOf<BridgedChain<T, I>>) -> Option<HeaderOf<BridgedChain<T, I>>> {
ImportedHeaders::<T, I>::get(hash).map(|h| h.into_inner())
}
}
@@ -1119,7 +1107,7 @@ mod tests {
sp_trie::StorageProof::new(vec![]),
|_| (),
),
Error::<TestRuntime>::UnknownHeader,
bp_header_chain::HeaderChainError::UnknownHeader,
);
});
}