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Propagate message verification errors (#2114)

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* Propagate message verification errors

* Replace parse_finalized_storage_proof() with storage_proof_checker()

* small fixes

* fix comment
This commit is contained in:
Serban Iorga
2023-05-09 08:21:02 +03:00
committed by Bastian Köcher
parent c490222fc6
commit 56d4013878
10 changed files with 268 additions and 295 deletions
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bridges/primitives/messages/src/source_chain.rs
+10 -20
View File
@@ -16,7 +16,7 @@
//! Primitives of messages module, that are used on the source chain.
use crate::{InboundLaneData, LaneId, MessageNonce, OutboundLaneData};
use crate::{InboundLaneData, LaneId, MessageNonce, OutboundLaneData, VerificationError};
use crate::UnrewardedRelayer;
use bp_runtime::Size;
@@ -40,9 +40,6 @@ pub type RelayersRewards<AccountId> = BTreeMap<AccountId, MessageNonce>;
/// source chain to the target chain. The `AccountId` type here means the account
/// type used by the source chain.
pub trait TargetHeaderChain<Payload, AccountId> {
/// Error type.
type Error: Debug;
/// Proof that messages have been received by target chain.
type MessagesDeliveryProof: Parameter + Size;
@@ -58,12 +55,12 @@ pub trait TargetHeaderChain<Payload, AccountId> {
/// 1MB. BTC nodes aren't accepting transactions that are larger than 1MB, so relayer
/// will be unable to craft valid transaction => this (and all subsequent) messages will
/// never be delivered.
fn verify_message(payload: &Payload) -> Result<(), Self::Error>;
fn verify_message(payload: &Payload) -> Result<(), VerificationError>;
/// Verify messages delivery proof and return lane && nonce of the latest received message.
fn verify_messages_delivery_proof(
proof: Self::MessagesDeliveryProof,
) -> Result<(LaneId, InboundLaneData<AccountId>), Self::Error>;
) -> Result<(LaneId, InboundLaneData<AccountId>), VerificationError>;
}
/// Lane message verifier.
@@ -75,9 +72,6 @@ pub trait TargetHeaderChain<Payload, AccountId> {
///
/// Any fee requirements should also be enforced here.
pub trait LaneMessageVerifier<SenderOrigin, Payload> {
/// Error type.
type Error: Debug + Into<&'static str>;
/// Verify message payload and return Ok(()) if message is valid and allowed to be sent over the
/// lane.
fn verify_message(
@@ -85,7 +79,7 @@ pub trait LaneMessageVerifier<SenderOrigin, Payload> {
lane: &LaneId,
outbound_data: &OutboundLaneData,
payload: &Payload,
) -> Result<(), Self::Error>;
) -> Result<(), VerificationError>;
}
/// Manages payments that are happening at the source chain during delivery confirmation
@@ -169,31 +163,27 @@ const ALL_OUTBOUND_MESSAGES_REJECTED: &str =
"This chain is configured to reject all outbound messages";
impl<Payload, AccountId> TargetHeaderChain<Payload, AccountId> for ForbidOutboundMessages {
type Error = &'static str;
type MessagesDeliveryProof = ();
fn verify_message(_payload: &Payload) -> Result<(), Self::Error> {
Err(ALL_OUTBOUND_MESSAGES_REJECTED)
fn verify_message(_payload: &Payload) -> Result<(), VerificationError> {
Err(VerificationError::Other(ALL_OUTBOUND_MESSAGES_REJECTED))
}
fn verify_messages_delivery_proof(
_proof: Self::MessagesDeliveryProof,
) -> Result<(LaneId, InboundLaneData<AccountId>), Self::Error> {
Err(ALL_OUTBOUND_MESSAGES_REJECTED)
) -> Result<(LaneId, InboundLaneData<AccountId>), VerificationError> {
Err(VerificationError::Other(ALL_OUTBOUND_MESSAGES_REJECTED))
}
}
impl<SenderOrigin, Payload> LaneMessageVerifier<SenderOrigin, Payload> for ForbidOutboundMessages {
type Error = &'static str;
fn verify_message(
_submitter: &SenderOrigin,
_lane: &LaneId,
_outbound_data: &OutboundLaneData,
_payload: &Payload,
) -> Result<(), Self::Error> {
Err(ALL_OUTBOUND_MESSAGES_REJECTED)
) -> Result<(), VerificationError> {
Err(VerificationError::Other(ALL_OUTBOUND_MESSAGES_REJECTED))
}
}