diff --git a/bridges/README.md b/bridges/README.md
index 3d3b177bbaae62c4d6d7ccc99ba5629a91983dae..e2192e3d6780f6c2e2e456ad1c42aecc878c893c 100644
--- a/bridges/README.md
+++ b/bridges/README.md
@@ -216,7 +216,7 @@ To run a Rialto node for example, you can use the following command:
```bash
docker run -p 30333:30333 -p 9933:9933 -p 9944:9944 \
- -it paritytech/rialto-bridge-node --dev --tmp \
+ -it local/rialto-bridge-node --dev --tmp \
--rpc-cors=all --unsafe-rpc-external --unsafe-ws-external
```
diff --git a/bridges/bin/millau/runtime/src/lib.rs b/bridges/bin/millau/runtime/src/lib.rs
index 5195f9b48a2ae58fcd7ed74ea04b479f65308a8a..c5c002c472179a6da5842e931ace1d0147c37369 100644
--- a/bridges/bin/millau/runtime/src/lib.rs
+++ b/bridges/bin/millau/runtime/src/lib.rs
@@ -795,33 +795,28 @@ impl_runtime_apis! {
}
impl bp_rialto::RialtoFinalityApi<Block> for Runtime {
- fn best_finalized() -> (bp_rialto::BlockNumber, bp_rialto::Hash) {
- let header = BridgeRialtoGrandpa::best_finalized();
- (header.number, header.hash())
+ fn best_finalized() -> Option<(bp_rialto::BlockNumber, bp_rialto::Hash)> {
+ BridgeRialtoGrandpa::best_finalized().map(|header| (header.number, header.hash()))
}
}
impl bp_westend::WestendFinalityApi<Block> for Runtime {
- fn best_finalized() -> (bp_westend::BlockNumber, bp_westend::Hash) {
- let header = BridgeWestendGrandpa::best_finalized();
- (header.number, header.hash())
+ fn best_finalized() -> Option<(bp_westend::BlockNumber, bp_westend::Hash)> {
+ BridgeWestendGrandpa::best_finalized().map(|header| (header.number, header.hash()))
}
}
impl bp_rialto_parachain::RialtoParachainFinalityApi<Block> for Runtime {
- fn best_finalized() -> (bp_rialto::BlockNumber, bp_rialto::Hash) {
+ fn best_finalized() -> Option<(bp_rialto::BlockNumber, bp_rialto::Hash)> {
// the parachains finality pallet is never decoding parachain heads, so it is
// only done in the integration code
use bp_rialto_parachain::RIALTO_PARACHAIN_ID;
- let best_rialto_parachain_head = pallet_bridge_parachains::Pallet::<
+ let encoded_head = pallet_bridge_parachains::Pallet::<
Runtime,
WithRialtoParachainsInstance,
- >::best_parachain_head(RIALTO_PARACHAIN_ID.into())
- .and_then(|encoded_header| bp_rialto_parachain::Header::decode(&mut &encoded_header.0[..]).ok());
- match best_rialto_parachain_head {
- Some(head) => (*head.number(), head.hash()),
- None => (Default::default(), Default::default()),
- }
+ >::best_parachain_head(RIALTO_PARACHAIN_ID.into())?;
+ let head = bp_rialto_parachain::Header::decode(&mut &encoded_head.0[..]).ok()?;
+ Some((*head.number(), head.hash()))
}
}
diff --git a/bridges/bin/rialto-parachain/runtime/src/lib.rs b/bridges/bin/rialto-parachain/runtime/src/lib.rs
index ec1c754f7dfdb8add2c93c85646f68e92fb3a02a..0927f138f3baf3b329e8b7e318053e0cc88ed80f 100644
--- a/bridges/bin/rialto-parachain/runtime/src/lib.rs
+++ b/bridges/bin/rialto-parachain/runtime/src/lib.rs
@@ -683,9 +683,8 @@ impl_runtime_apis! {
}
impl bp_millau::MillauFinalityApi<Block> for Runtime {
- fn best_finalized() -> (bp_millau::BlockNumber, bp_millau::Hash) {
- let header = BridgeMillauGrandpa::best_finalized();
- (header.number, header.hash())
+ fn best_finalized() -> Option<(bp_millau::BlockNumber, bp_millau::Hash)> {
+ BridgeMillauGrandpa::best_finalized().map(|header| (header.number, header.hash()))
}
}
diff --git a/bridges/bin/rialto/runtime/src/lib.rs b/bridges/bin/rialto/runtime/src/lib.rs
index 9b7dc70394ac52826b818c7332566e838e427d1a..e10ddda0fb3a91b9acc7a39740af74a7e65084f6 100644
--- a/bridges/bin/rialto/runtime/src/lib.rs
+++ b/bridges/bin/rialto/runtime/src/lib.rs
@@ -640,9 +640,8 @@ impl_runtime_apis! {
}
impl bp_millau::MillauFinalityApi<Block> for Runtime {
- fn best_finalized() -> (bp_millau::BlockNumber, bp_millau::Hash) {
- let header = BridgeMillauGrandpa::best_finalized();
- (header.number, header.hash())
+ fn best_finalized() -> Option<(bp_millau::BlockNumber, bp_millau::Hash)> {
+ BridgeMillauGrandpa::best_finalized().map(|header| (header.number, header.hash()))
}
}
diff --git a/bridges/modules/grandpa/src/lib.rs b/bridges/modules/grandpa/src/lib.rs
index 8fa0ed89cca2a2e741933832f5307d3bda922fcd..684905f2886062d60179253a8fc4c9c64a9d124e 100644
--- a/bridges/modules/grandpa/src/lib.rs
+++ b/bridges/modules/grandpa/src/lib.rs
@@ -537,17 +537,9 @@ impl<T: Config<I>, I: 'static> Pallet<T, I> {
///
/// 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() -> BridgedHeader<T, I> {
+ pub fn best_finalized() -> Option<BridgedHeader<T, I>> {
let hash = <BestFinalized<T, I>>::get();
- <ImportedHeaders<T, I>>::get(hash).unwrap_or_else(|| {
- <BridgedHeader<T, I>>::new(
- Default::default(),
- Default::default(),
- Default::default(),
- Default::default(),
- Default::default(),
- )
- })
+ <ImportedHeaders<T, I>>::get(hash)
}
/// Check if a particular header is known to the bridge pallet.
@@ -718,7 +710,7 @@ mod tests {
BestFinalized::<TestRuntime>::get(),
BridgedBlockHash::<TestRuntime, ()>::default()
);
- assert_eq!(Pallet::<TestRuntime>::best_finalized(), test_header(0));
+ assert_eq!(Pallet::<TestRuntime>::best_finalized(), None);
let init_data = init_with_origin(Origin::root()).unwrap();
@@ -1131,7 +1123,7 @@ mod tests {
run_test(|| {
initialize_substrate_bridge();
assert_ok!(submit_finality_proof(1));
- let first_header = Pallet::<TestRuntime>::best_finalized();
+ let first_header = Pallet::<TestRuntime>::best_finalized().unwrap();
next_block();
assert_ok!(submit_finality_proof(2));
diff --git a/bridges/primitives/chain-kusama/src/lib.rs b/bridges/primitives/chain-kusama/src/lib.rs
index 880fe5ac1bd00189c6d89a35bef3d79235a55c1a..637f6b9da03f7a27e624df31f9aee064ae998d1a 100644
--- a/bridges/primitives/chain-kusama/src/lib.rs
+++ b/bridges/primitives/chain-kusama/src/lib.rs
@@ -117,7 +117,7 @@ sp_api::decl_runtime_apis! {
/// Kusama runtime itself.
pub trait KusamaFinalityApi {
/// Returns number and hash of the best finalized header known to the bridge module.
- fn best_finalized() -> (BlockNumber, Hash);
+ fn best_finalized() -> Option<(BlockNumber, Hash)>;
}
/// Outbound message lane API for messages that are sent to Kusama chain.
diff --git a/bridges/primitives/chain-millau/src/lib.rs b/bridges/primitives/chain-millau/src/lib.rs
index c9b4153b2fc898efe291dd679fd8d4fec76235fb..240c2daaa98c16c1a475620e0554b065b38a2d15 100644
--- a/bridges/primitives/chain-millau/src/lib.rs
+++ b/bridges/primitives/chain-millau/src/lib.rs
@@ -314,7 +314,7 @@ sp_api::decl_runtime_apis! {
/// 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);
+ fn best_finalized() -> Option<(BlockNumber, Hash)>;
}
/// Outbound message lane API for messages that are sent to Millau chain.
diff --git a/bridges/primitives/chain-polkadot/src/lib.rs b/bridges/primitives/chain-polkadot/src/lib.rs
index e16a23e1d148f6fd1d9bc1c33368c9ea5a845d57..f06bb917edc718ac8f1ee52fe8abc3336854f070 100644
--- a/bridges/primitives/chain-polkadot/src/lib.rs
+++ b/bridges/primitives/chain-polkadot/src/lib.rs
@@ -118,7 +118,7 @@ sp_api::decl_runtime_apis! {
/// Polkadot runtime itself.
pub trait PolkadotFinalityApi {
/// Returns number and hash of the best finalized header known to the bridge module.
- fn best_finalized() -> (BlockNumber, Hash);
+ fn best_finalized() -> Option<(BlockNumber, Hash)>;
}
/// Outbound message lane API for messages that are sent to Polkadot chain.
diff --git a/bridges/primitives/chain-rialto-parachain/src/lib.rs b/bridges/primitives/chain-rialto-parachain/src/lib.rs
index df66996c4b133be4b53588756febe5d750c263c4..38b4192bf348c5fe37176d881bf6eda549d81504 100644
--- a/bridges/primitives/chain-rialto-parachain/src/lib.rs
+++ b/bridges/primitives/chain-rialto-parachain/src/lib.rs
@@ -241,7 +241,7 @@ sp_api::decl_runtime_apis! {
/// RialtoParachain runtime itself.
pub trait RialtoParachainFinalityApi {
/// Returns number and hash of the best finalized header known to the bridge module.
- fn best_finalized() -> (BlockNumber, Hash);
+ fn best_finalized() -> Option<(BlockNumber, Hash)>;
}
/// Outbound message lane API for messages that are sent to RialtoParachain chain.
diff --git a/bridges/primitives/chain-rialto/src/lib.rs b/bridges/primitives/chain-rialto/src/lib.rs
index 9d598b8d22fedd49c0b4e288557e75caac67e95e..e5c5ebab76ff50f459ff11f88a1a4c809dbc83df 100644
--- a/bridges/primitives/chain-rialto/src/lib.rs
+++ b/bridges/primitives/chain-rialto/src/lib.rs
@@ -262,7 +262,7 @@ sp_api::decl_runtime_apis! {
/// Rialto runtime itself.
pub trait RialtoFinalityApi {
/// Returns number and hash of the best finalized header known to the bridge module.
- fn best_finalized() -> (BlockNumber, Hash);
+ fn best_finalized() -> Option<(BlockNumber, Hash)>;
}
/// Outbound message lane API for messages that are sent to Rialto chain.
diff --git a/bridges/primitives/chain-rococo/src/lib.rs b/bridges/primitives/chain-rococo/src/lib.rs
index a0f545a95c21e4ecec8ca9c2c0cb4b533c54dc4a..1c2bfb42d0f0d0eeb7d615e8de9fc30a95ad324f 100644
--- a/bridges/primitives/chain-rococo/src/lib.rs
+++ b/bridges/primitives/chain-rococo/src/lib.rs
@@ -113,7 +113,7 @@ sp_api::decl_runtime_apis! {
/// Rococo runtime itself.
pub trait RococoFinalityApi {
/// Returns number and hash of the best finalized header known to the bridge module.
- fn best_finalized() -> (BlockNumber, Hash);
+ fn best_finalized() -> Option<(BlockNumber, Hash)>;
}
/// Outbound message lane API for messages that are sent to Rococo chain.
diff --git a/bridges/primitives/chain-westend/src/lib.rs b/bridges/primitives/chain-westend/src/lib.rs
index c7ebe4b00fd5d2c90b46ad1b90c9e60ed7e3347f..539cf69eb73a53e6b3d4db4c70bc929d1d1b8eeb 100644
--- a/bridges/primitives/chain-westend/src/lib.rs
+++ b/bridges/primitives/chain-westend/src/lib.rs
@@ -106,6 +106,6 @@ sp_api::decl_runtime_apis! {
/// Westend runtime itself.
pub trait WestendFinalityApi {
/// Returns number and hash of the best finalized header known to the bridge module.
- fn best_finalized() -> (BlockNumber, Hash);
+ fn best_finalized() -> Option<(BlockNumber, Hash)>;
}
}
diff --git a/bridges/primitives/chain-wococo/src/lib.rs b/bridges/primitives/chain-wococo/src/lib.rs
index 69039355923c4be537ca8f3aae27b0bdf6e01b1a..6e0bad122740408513a7c9b2b653448256e10f6a 100644
--- a/bridges/primitives/chain-wococo/src/lib.rs
+++ b/bridges/primitives/chain-wococo/src/lib.rs
@@ -70,7 +70,7 @@ sp_api::decl_runtime_apis! {
/// Wococo runtime itself.
pub trait WococoFinalityApi {
/// Returns number and hash of the best finalized header known to the bridge module.
- fn best_finalized() -> (BlockNumber, Hash);
+ fn best_finalized() -> Option<(BlockNumber, Hash)>;
}
/// Outbound message lane API for messages that are sent to Wococo chain.
diff --git a/bridges/primitives/header-chain/src/lib.rs b/bridges/primitives/header-chain/src/lib.rs
index 29d9cc525445d09a2ce5bec7da2e73c48febd0bc..ff8ee82f41e42631b4533674a38bb983c188b822 100644
--- a/bridges/primitives/header-chain/src/lib.rs
+++ b/bridges/primitives/header-chain/src/lib.rs
@@ -88,7 +88,7 @@ pub trait InclusionProofVerifier {
/// A trait for pallets which want to keep track of finalized headers from a bridged chain.
pub trait HeaderChain<H, E> {
/// Get the best finalized header known to the header chain.
- fn best_finalized() -> H;
+ fn best_finalized() -> Option<H>;
/// Get the best authority set known to the header chain.
fn authority_set() -> AuthoritySet;
@@ -98,8 +98,8 @@ pub trait HeaderChain<H, E> {
}
impl<H: Default, E> HeaderChain<H, E> for () {
- fn best_finalized() -> H {
- H::default()
+ fn best_finalized() -> Option<H> {
+ None
}
fn authority_set() -> AuthoritySet {
diff --git a/bridges/relays/client-substrate/src/client.rs b/bridges/relays/client-substrate/src/client.rs
index bb9f8230056687ea7834e939c984adc7e0c7cfb7..448c33c5ba3979d69cbec5ef5fca55633b72d1bc 100644
--- a/bridges/relays/client-substrate/src/client.rs
+++ b/bridges/relays/client-substrate/src/client.rs
@@ -456,8 +456,12 @@ impl<C: Chain> Client<C> {
IndexOf<C>,
C::SignedBlock,
>::author_submit_extrinsic(&*client, transaction)
- .await?;
- log::trace!(target: "bridge", "Sent transaction to Substrate node: {:?}", tx_hash);
+ .await
+ .map_err(|e| {
+ log::error!(target: "bridge", "Failed to send transaction to {} node: {:?}", C::NAME, e);
+ e
+ })?;
+ log::trace!(target: "bridge", "Sent transaction to {} node: {:?}", C::NAME, tx_hash);
Ok(tx_hash)
})
.await
@@ -499,7 +503,11 @@ impl<C: Chain> Client<C> {
IndexOf<C>,
C::SignedBlock,
>::author_submit_extrinsic(&*client, extrinsic)
- .await?;
+ .await
+ .map_err(|e| {
+ log::error!(target: "bridge", "Failed to send transaction to {} node: {:?}", C::NAME, e);
+ e
+ })?;
log::trace!(target: "bridge", "Sent transaction to {} node: {:?}", C::NAME, tx_hash);
Ok(tx_hash)
})
@@ -528,7 +536,11 @@ impl<C: Chain> Client<C> {
.map_err(|e| Error::RpcError(e.into()))?])),
"author_unwatchExtrinsic",
)
- .await?;
+ .await
+ .map_err(|e| {
+ log::error!(target: "bridge", "Failed to send transaction to {} node: {:?}", C::NAME, e);
+ e
+ })?;
log::trace!(target: "bridge", "Sent transaction to {} node: {:?}", C::NAME, tx_hash);
Ok(subscription)
})
diff --git a/bridges/relays/lib-substrate-relay/src/error.rs b/bridges/relays/lib-substrate-relay/src/error.rs
index 9402d55e379815467d2f1586d9c09df806ee72cb..5accba4fc7ce586032b9d961d6223570520c0767 100644
--- a/bridges/relays/lib-substrate-relay/src/error.rs
+++ b/bridges/relays/lib-substrate-relay/src/error.rs
@@ -58,4 +58,9 @@ pub enum Error<Hash: Debug + MaybeDisplay, HeaderNumber: Debug + MaybeDisplay> {
/// Failed to retrieve best finalized source header hash from the target chain.
#[error("Failed to retrieve best finalized {0} header from the target chain: {1}")]
RetrieveBestFinalizedHeaderHash(&'static str, client::Error),
+ /// Failed to submit signed extrinsic from to the target chain.
+ #[error(
+ "Failed to retrieve `is_initialized` flag of the with-{0} finality pallet at {1}: {2:?}"
+ )]
+ IsInitializedRetrieve(&'static str, &'static str, client::Error),
}
diff --git a/bridges/relays/lib-substrate-relay/src/finality/engine.rs b/bridges/relays/lib-substrate-relay/src/finality/engine.rs
index 0b20a3222d232a1a818e8b46f5626cd92b59b52e..76038fcb976762492a999df2e1486fcab58fc8c7 100644
--- a/bridges/relays/lib-substrate-relay/src/finality/engine.rs
+++ b/bridges/relays/lib-substrate-relay/src/finality/engine.rs
@@ -37,7 +37,7 @@ use std::marker::PhantomData;
/// Finality enfine, used by the Substrate chain.
#[async_trait]
-pub trait Engine<C: Chain> {
+pub trait Engine<C: Chain>: Send {
/// Unique consensus engine identifier.
const ID: ConsensusEngineId;
/// Type of finality proofs, used by consensus engine.
@@ -59,6 +59,23 @@ pub trait Engine<C: Chain> {
async fn prepare_initialization_data(
client: Client<C>,
) -> Result<Self::InitializationData, Error<HashOf<C>, BlockNumberOf<C>>>;
+
+ /// Returns `Ok(true)` if finality pallet at the bridged chain has already been initialized.
+ async fn is_initialized<TargetChain: Chain>(
+ target_client: &Client<TargetChain>,
+ ) -> Result<bool, SubstrateError> {
+ Ok(target_client
+ .raw_storage_value(Self::is_initialized_key(), None)
+ .await?
+ .is_some())
+ }
+
+ /// Returns `Ok(true)` if finality pallet at the bridged chain is halted.
+ async fn is_halted<TargetChain: Chain>(
+ target_client: &Client<TargetChain>,
+ ) -> Result<bool, SubstrateError> {
+ Ok(target_client.storage_value(Self::is_halted_key(), None).await?.unwrap_or(false))
+ }
}
/// GRANDPA finality engine.
diff --git a/bridges/relays/lib-substrate-relay/src/finality/initialize.rs b/bridges/relays/lib-substrate-relay/src/finality/initialize.rs
index 2fc9302d90f587a2d25d2a811ac83967ecb39c39..be1719b4ae033e5b8f217d33a824acb9ce9cbe5b 100644
--- a/bridges/relays/lib-substrate-relay/src/finality/initialize.rs
+++ b/bridges/relays/lib-substrate-relay/src/finality/initialize.rs
@@ -23,7 +23,7 @@
use crate::{error::Error, finality::engine::Engine};
-use relay_substrate_client::{BlockNumberOf, Chain, Client, Error as SubstrateError, HashOf};
+use relay_substrate_client::{Chain, Client, Error as SubstrateError};
use sp_core::Bytes;
use sp_runtime::traits::Header as HeaderT;
@@ -80,7 +80,9 @@ where
+ Send
+ 'static,
{
- let is_initialized = is_initialized::<E, SourceChain, TargetChain>(&target_client).await?;
+ let is_initialized = E::is_initialized(&target_client)
+ .await
+ .map_err(|e| Error::IsInitializedRetrieve(SourceChain::NAME, TargetChain::NAME, e))?;
if is_initialized {
log::info!(
target: "bridge",
@@ -108,18 +110,3 @@ where
.map_err(|err| Error::SubmitTransaction(TargetChain::NAME, err))?;
Ok(Some(initialization_tx_hash))
}
-
-/// Returns `Ok(true)` if bridge has already been initialized.
-pub(crate) async fn is_initialized<
- E: Engine<SourceChain>,
- SourceChain: Chain,
- TargetChain: Chain,
->(
- target_client: &Client<TargetChain>,
-) -> Result<bool, Error<HashOf<SourceChain>, BlockNumberOf<SourceChain>>> {
- Ok(target_client
- .raw_storage_value(E::is_initialized_key(), None)
- .await
- .map_err(|err| Error::RetrieveBestFinalizedHeaderHash(SourceChain::NAME, err))?
- .is_some())
-}
diff --git a/bridges/relays/lib-substrate-relay/src/finality/target.rs b/bridges/relays/lib-substrate-relay/src/finality/target.rs
index 12098a74799774b5e852603096fbcce59c295e8d..d04fe280e5a2f5dc456d43b9060275c9a5039835 100644
--- a/bridges/relays/lib-substrate-relay/src/finality/target.rs
+++ b/bridges/relays/lib-substrate-relay/src/finality/target.rs
@@ -51,15 +51,12 @@ impl<P: SubstrateFinalitySyncPipeline> SubstrateFinalityTarget<P> {
/// Ensure that the bridge pallet at target chain is active.
pub async fn ensure_pallet_active(&self) -> Result<(), Error> {
- let is_halted = self.client.storage_value(P::FinalityEngine::is_halted_key(), None).await?;
- if is_halted.unwrap_or(false) {
+ let is_halted = P::FinalityEngine::is_halted(&self.client).await?;
+ if is_halted {
return Err(Error::BridgePalletIsHalted)
}
- let is_initialized =
- super::initialize::is_initialized::<P::FinalityEngine, P::SourceChain, P::TargetChain>(
- &self.client,
- )
+ let is_initialized = P::FinalityEngine::is_initialized(&self.client)
.await
.map_err(|e| Error::Custom(e.to_string()))?;
if !is_initialized {
diff --git a/bridges/relays/lib-substrate-relay/src/messages_source.rs b/bridges/relays/lib-substrate-relay/src/messages_source.rs
index 85bd9ea7d0f7709fa5b2905215eb6a39be44dcda..0e21ef66eda3b8e22e328aaec101a9423a74a83a 100644
--- a/bridges/relays/lib-substrate-relay/src/messages_source.rs
+++ b/bridges/relays/lib-substrate-relay/src/messages_source.rs
@@ -146,7 +146,11 @@ where
async fn state(&self) -> Result<SourceClientState<MessageLaneAdapter<P>>, SubstrateError> {
// we can't continue to deliver confirmations if source node is out of sync, because
// it may have already received confirmations that we're going to deliver
+ //
+ // we can't continue to deliver messages if target node is out of sync, because
+ // it may have already received (some of) messages that we're going to deliver
self.source_client.ensure_synced().await?;
+ self.target_client.ensure_synced().await?;
// we can't relay confirmations if messages pallet at source chain is halted
self.ensure_pallet_active().await?;
@@ -562,9 +566,13 @@ where
Some(at_self_hash),
)
.await?;
- let decoded_best_finalized_peer_on_self: (BlockNumberOf<PeerChain>, HashOf<PeerChain>) =
- Decode::decode(&mut &encoded_best_finalized_peer_on_self.0[..])
- .map_err(SubstrateError::ResponseParseFailed)?;
+ let decoded_best_finalized_peer_on_self =
+ Option::<(BlockNumberOf<PeerChain>, HashOf<PeerChain>)>::decode(
+ &mut &encoded_best_finalized_peer_on_self.0[..],
+ )
+ .map_err(SubstrateError::ResponseParseFailed)?
+ .map(Ok)
+ .unwrap_or(Err(SubstrateError::BridgePalletIsNotInitialized))?;
let peer_on_self_best_finalized_id =
HeaderId(decoded_best_finalized_peer_on_self.0, decoded_best_finalized_peer_on_self.1);
diff --git a/bridges/relays/lib-substrate-relay/src/messages_target.rs b/bridges/relays/lib-substrate-relay/src/messages_target.rs
index 00c0c1570541e9a6078536f9f08f3421ce606a00..d860fa68a934b1ac01893cb80bf901b035593375 100644
--- a/bridges/relays/lib-substrate-relay/src/messages_target.rs
+++ b/bridges/relays/lib-substrate-relay/src/messages_target.rs
@@ -146,8 +146,12 @@ where
BalanceOf<P::SourceChain>: TryFrom<BalanceOf<P::TargetChain>>,
{
async fn state(&self) -> Result<TargetClientState<MessageLaneAdapter<P>>, SubstrateError> {
+ // we can't continue to deliver confirmations if source node is out of sync, because
+ // it may have already received confirmations that we're going to deliver
+ //
// we can't continue to deliver messages if target node is out of sync, because
// it may have already received (some of) messages that we're going to deliver
+ self.source_client.ensure_synced().await?;
self.target_client.ensure_synced().await?;
// we can't relay messages if messages pallet at target chain is halted
self.ensure_pallet_active().await?;
diff --git a/bridges/relays/lib-substrate-relay/src/on_demand/headers.rs b/bridges/relays/lib-substrate-relay/src/on_demand/headers.rs
index f22ad96b636ea2e0513b200b90abb66e58154d48..749205ef9b3cd85e4fc1e454e829f8d51438ab59 100644
--- a/bridges/relays/lib-substrate-relay/src/on_demand/headers.rs
+++ b/bridges/relays/lib-substrate-relay/src/on_demand/headers.rs
@@ -253,7 +253,7 @@ async fn background_task<P: SubstrateFinalitySyncPipeline>(
log::info!(
target: "bridge",
- "[{}] Starting on-demand relay task\n\t\
+ "[{}] Starting on-demand headers relay task\n\t\
Only mandatory headers: {}\n\t\
Tx mortality: {:?} (~{}m)\n\t\
Stall timeout: {:?}",
diff --git a/bridges/relays/lib-substrate-relay/src/on_demand/parachains.rs b/bridges/relays/lib-substrate-relay/src/on_demand/parachains.rs
index 579f3103e8222f2edc3bb4f69bfd9c5595309639..f25d3b76948c95fcbcbdee425ee188eb248de3c4 100644
--- a/bridges/relays/lib-substrate-relay/src/on_demand/parachains.rs
+++ b/bridges/relays/lib-substrate-relay/src/on_demand/parachains.rs
@@ -181,6 +181,7 @@ async fn background_task<P: SubstrateParachainsPipeline>(
new_required_parachain_header_number,
);
},
+ _ = async_std::task::sleep(P::TargetChain::AVERAGE_BLOCK_INTERVAL).fuse() => {},
_ = parachains_relay_task => {
// this should never happen in practice given the current code
restart_relay = true;
@@ -266,7 +267,7 @@ async fn background_task<P: SubstrateParachainsPipeline>(
log::info!(
target: "bridge",
- "[{}] Starting on-demand-relay task\n\t\
+ "[{}] Starting on-demand-parachains relay task\n\t\
Tx mortality: {:?} (~{}m)\n\t\
Stall timeout: {:?}",
relay_task_name,
@@ -317,7 +318,7 @@ struct RelayData<ParaHash, ParaNumber, RelayNumber> {
/// Parachain header number that is required at the target chain.
pub required_para_header: ParaNumber,
/// Parachain header number, known to the target chain.
- pub para_header_at_target: ParaNumber,
+ pub para_header_at_target: Option<ParaNumber>,
/// Parachain header id, known to the source (relay) chain.
pub para_header_at_source: Option<HeaderId<ParaHash, ParaNumber>>,
/// Parachain header, that is available at the source relay chain at `relay_header_at_target`
@@ -374,9 +375,15 @@ where
best_target_block_hash,
P::SourceParachain::BEST_FINALIZED_HEADER_ID_METHOD,
)
- .await
- .map_err(map_target_err)?
- .0;
+ .await;
+ // if there are no parachain heads at the target (`BridgePalletIsNotInitialized`), we'll need
+ // to submit at least one. Otherwise the pallet will be treated as uninitialized and messages
+ // sync will stall.
+ let para_header_at_target = match para_header_at_target {
+ Ok(para_header_at_target) => Some(para_header_at_target.0),
+ Err(SubstrateError::BridgePalletIsNotInitialized) => None,
+ Err(e) => return Err(map_target_err(e)),
+ };
let best_finalized_relay_header =
source.client().best_finalized_header().await.map_err(map_source_err)?;
@@ -424,7 +431,7 @@ fn select_headers_to_relay<ParaHash, ParaNumber, RelayNumber>(
) -> RelayState<ParaHash, ParaNumber, RelayNumber>
where
ParaHash: Clone,
- ParaNumber: Copy + PartialOrd,
+ ParaNumber: Copy + PartialOrd + Zero,
RelayNumber: Copy + Debug + Ord,
{
// this switch is responsible for processing `RelayingRelayHeader` state
@@ -450,30 +457,38 @@ where
}
// this switch is responsible for processing `RelayingParaHeader` state
+ let para_header_at_target_or_zero = data.para_header_at_target.unwrap_or_else(Zero::zero);
match state {
RelayState::Idle => (),
RelayState::RelayingRelayHeader(_) => unreachable!("processed by previous match; qed"),
RelayState::RelayingParaHeader(para_header_id) => {
- if data.para_header_at_target < para_header_id.0 {
+ if para_header_at_target_or_zero < para_header_id.0 {
// parachain header hasn't yet been relayed
return RelayState::RelayingParaHeader(para_header_id)
}
},
}
- // if we have already satisfied our "customer", do nothing
- if data.required_para_header <= data.para_header_at_target {
- return RelayState::Idle
- }
-
// if we haven't read para head from the source, we can't yet do anyhting
let para_header_at_source = match data.para_header_at_source {
Some(ref para_header_at_source) => para_header_at_source.clone(),
None => return RelayState::Idle,
};
+ // if we have parachain head at the source, but no parachain heads at the target, we'll need
+ // to deliver at least one parachain head
+ let (required_para_header, para_header_at_target) = match data.para_header_at_target {
+ Some(para_header_at_target) => (data.required_para_header, para_header_at_target),
+ None => (para_header_at_source.0, Zero::zero()),
+ };
+
+ // if we have already satisfied our "customer", do nothing
+ if required_para_header <= para_header_at_target {
+ return RelayState::Idle
+ }
+
// if required header is not available even at the source chain, let's wait
- if data.required_para_header > para_header_at_source.0 {
+ if required_para_header > para_header_at_source.0 {
return RelayState::Idle
}
@@ -499,7 +514,7 @@ mod tests {
select_headers_to_relay(
&RelayData {
required_para_header: 90,
- para_header_at_target: 50,
+ para_header_at_target: Some(50),
para_header_at_source: Some(HeaderId(110, 110)),
relay_header_at_source: 800,
relay_header_at_target: 700,
@@ -517,7 +532,7 @@ mod tests {
select_headers_to_relay(
&RelayData {
required_para_header: 90,
- para_header_at_target: 50,
+ para_header_at_target: Some(50),
para_header_at_source: Some(HeaderId(110, 110)),
relay_header_at_source: 800,
relay_header_at_target: 750,
@@ -535,7 +550,7 @@ mod tests {
select_headers_to_relay(
&RelayData {
required_para_header: 90,
- para_header_at_target: 50,
+ para_header_at_target: Some(50),
para_header_at_source: Some(HeaderId(110, 110)),
relay_header_at_source: 800,
relay_header_at_target: 780,
@@ -552,7 +567,7 @@ mod tests {
select_headers_to_relay(
&RelayData {
required_para_header: 90,
- para_header_at_target: 50,
+ para_header_at_target: Some(50),
para_header_at_source: Some(HeaderId(110, 110)),
relay_header_at_source: 800,
relay_header_at_target: 780,
@@ -570,7 +585,7 @@ mod tests {
select_headers_to_relay(
&RelayData {
required_para_header: 90,
- para_header_at_target: 105,
+ para_header_at_target: Some(105),
para_header_at_source: Some(HeaderId(110, 110)),
relay_header_at_source: 800,
relay_header_at_target: 780,
@@ -588,7 +603,7 @@ mod tests {
select_headers_to_relay(
&RelayData {
required_para_header: 120,
- para_header_at_target: 105,
+ para_header_at_target: Some(105),
para_header_at_source: None,
relay_header_at_source: 800,
relay_header_at_target: 780,
@@ -606,7 +621,7 @@ mod tests {
select_headers_to_relay(
&RelayData {
required_para_header: 120,
- para_header_at_target: 105,
+ para_header_at_target: Some(105),
para_header_at_source: Some(HeaderId(110, 110)),
relay_header_at_source: 800,
relay_header_at_target: 780,
@@ -624,7 +639,7 @@ mod tests {
select_headers_to_relay(
&RelayData {
required_para_header: 120,
- para_header_at_target: 105,
+ para_header_at_target: Some(105),
para_header_at_source: Some(HeaderId(125, 125)),
relay_header_at_source: 800,
relay_header_at_target: 780,
@@ -642,7 +657,7 @@ mod tests {
select_headers_to_relay(
&RelayData {
required_para_header: 120,
- para_header_at_target: 105,
+ para_header_at_target: Some(105),
para_header_at_source: Some(HeaderId(125, 125)),
relay_header_at_source: 800,
relay_header_at_target: 800,
@@ -660,7 +675,7 @@ mod tests {
select_headers_to_relay::<i32, _, _>(
&RelayData {
required_para_header: 120,
- para_header_at_target: 105,
+ para_header_at_target: Some(105),
para_header_at_source: None,
relay_header_at_source: 800,
relay_header_at_target: 800,
@@ -671,4 +686,40 @@ mod tests {
RelayState::Idle,
);
}
+
+ #[test]
+ fn relay_starts_relaying_first_parachain_header() {
+ assert_eq!(
+ select_headers_to_relay::<i32, _, _>(
+ &RelayData {
+ required_para_header: 0,
+ para_header_at_target: None,
+ para_header_at_source: Some(HeaderId(125, 125)),
+ relay_header_at_source: 800,
+ relay_header_at_target: 800,
+ para_header_at_relay_header_at_target: Some(HeaderId(125, 125)),
+ },
+ RelayState::Idle,
+ ),
+ RelayState::RelayingParaHeader(HeaderId(125, 125)),
+ );
+ }
+
+ #[test]
+ fn relay_starts_relaying_relay_header_to_relay_first_parachain_header() {
+ assert_eq!(
+ select_headers_to_relay::<i32, _, _>(
+ &RelayData {
+ required_para_header: 0,
+ para_header_at_target: None,
+ para_header_at_source: Some(HeaderId(125, 125)),
+ relay_header_at_source: 800,
+ relay_header_at_target: 700,
+ para_header_at_relay_header_at_target: Some(HeaderId(125, 125)),
+ },
+ RelayState::Idle,
+ ),
+ RelayState::RelayingRelayHeader(800),
+ );
+ }
}
diff --git a/bridges/relays/lib-substrate-relay/src/parachains/target.rs b/bridges/relays/lib-substrate-relay/src/parachains/target.rs
index 9ff35f5a0c1061096f989e484bdb27f5cf677a4d..67d82e1f7075f47dc3e2f5a4e238e9309387ba82 100644
--- a/bridges/relays/lib-substrate-relay/src/parachains/target.rs
+++ b/bridges/relays/lib-substrate-relay/src/parachains/target.rs
@@ -102,11 +102,13 @@ where
Some(at_block.1),
)
.await?;
- let decoded_best_finalized_source_block: (
- BlockNumberOf<P::SourceRelayChain>,
- HashOf<P::SourceRelayChain>,
- ) = Decode::decode(&mut &encoded_best_finalized_source_block.0[..])
- .map_err(SubstrateError::ResponseParseFailed)?;
+ let decoded_best_finalized_source_block =
+ Option::<(BlockNumberOf<P::SourceRelayChain>, HashOf<P::SourceRelayChain>)>::decode(
+ &mut &encoded_best_finalized_source_block.0[..],
+ )
+ .map_err(SubstrateError::ResponseParseFailed)?
+ .map(Ok)
+ .unwrap_or(Err(SubstrateError::BridgePalletIsNotInitialized))?;
Ok(HeaderId(decoded_best_finalized_source_block.0, decoded_best_finalized_source_block.1))
}
diff --git a/bridges/relays/utils/src/metrics/float_json_value.rs b/bridges/relays/utils/src/metrics/float_json_value.rs
index 7535cbef9863f6bfc6372f5d7d23b53d5785408c..17b09e050973ada83a9735e373292c92ed31ff4b 100644
--- a/bridges/relays/utils/src/metrics/float_json_value.rs
+++ b/bridges/relays/utils/src/metrics/float_json_value.rs
@@ -27,7 +27,7 @@ use async_trait::async_trait;
use std::time::Duration;
/// Value update interval.
-const UPDATE_INTERVAL: Duration = Duration::from_secs(60);
+const UPDATE_INTERVAL: Duration = Duration::from_secs(300);
/// Metric that represents float value received from HTTP service as float gauge.
///