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Unify Substrate Bridge Pallet with Finality Verifier (#783)

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* Add relevant storage items from Substrate pallet

* Add function for importing finalized headers to storage

* Remove unused getter functions

* Add GenesisConfig to pallet

* Add initialization extrinsic

* Add operational extrinsic

* Get existing finality verifier tests compiling again

* Add tests for pallet initialization

* Add tests related to pallet's operational status

* Update tests which were using `pallet-substrate-bridge`

* Add tests related to header imports

* Use wrapper function when init-ing some tests

* Add prefix to tests related to rate limiter

* Fix failed compilation related to GenesisConfig

* Add some documentation

* Change some extrinsics to be Operational

* Add public interface to pallet

* Implement runtime APIs for finality-verifier pallet

* Justify use of `expect` when importing headers

* Reject headers with forced changes

* Add weight to initialize extrinsic

* Remove TODO which will be addressed later

* Move succesful import log to correct location

* Expand proof for when `best_finalized` is fetched

* Move check for newer finalized blocks earlier in pipeline

* Rename `ConflictingFork` error to be more generic

* Only compute finality_target's hash once

* Add missing documentation to Runtime APIs

* Add TODO about using `set_id` from `ScheduledChange` digest
This commit is contained in:
Hernando Castano
2021-03-04 14:50:30 -05:00
committed by Bastian Köcher
parent 95f5d2248e
commit 6cfd87783e
7 changed files with 630 additions and 43 deletions
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bridges/primitives/millau/src/lib.rs
+17 -1
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@@ -238,6 +238,11 @@ pub const IS_KNOWN_MILLAU_BLOCK_METHOD: &str = "MillauHeaderApi_is_known_block";
/// Name of the `MillauHeaderApi::incomplete_headers` runtime method.
pub const INCOMPLETE_MILLAU_HEADERS_METHOD: &str = "MillauHeaderApi_incomplete_headers";
/// Name of the `RialtoFinalityApi::best_finalized` runtime method.
pub const BEST_FINALIZED_MILLAU_HEADER_METHOD: &str = "MillauFinalityApi_best_finalized";
/// Name of the `RialtoFinalityApi::is_known_header` runtime method.
pub const IS_KNOW_MILLAU_HEADER_METHOD: &str = "MillauFinalityApi_is_known_header";
/// Name of the `ToMillauOutboundLaneApi::estimate_message_delivery_and_dispatch_fee` runtime method.
pub const TO_MILLAU_ESTIMATE_MESSAGE_FEE_METHOD: &str =
"ToMillauOutboundLaneApi_estimate_message_delivery_and_dispatch_fee";
@@ -258,7 +263,7 @@ pub const FROM_MILLAU_UNREWARDED_RELAYERS_STATE: &str = "FromMillauInboundLaneAp
sp_api::decl_runtime_apis! {
/// API for querying information about Millau headers from the Bridge Pallet instance.
///
/// This API is implemented by runtimes that are bridging with Millau chain, not the
/// This API is implemented by runtimes that are bridging with the Millau chain, not the
/// Millau runtime itself.
pub trait MillauHeaderApi {
/// Returns number and hash of the best blocks known to the bridge module.
@@ -281,6 +286,17 @@ sp_api::decl_runtime_apis! {
fn is_finalized_block(hash: Hash) -> bool;
}
/// API for querying information about the finalized Millau headers.
///
/// This API is implemented by runtimes that are bridging with the Millau chain, not the
/// Millau runtime itself.
pub trait MillauFinalityApi {
/// Returns number and hash of the best finalized header known to the bridge module.
fn best_finalized() -> (BlockNumber, Hash);
/// Returns true if the header is known to the runtime.
fn is_known_header(hash: Hash) -> bool;
}
/// Outbound message lane API for messages that are sent to Millau chain.
///
/// This API is implemented by runtimes that are sending messages to Millau chain, not the