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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/target_chain.rs
+7 -9
View File
@@ -16,7 +16,9 @@
//! Primitives of messages module, that are used on the target chain.
use crate::{LaneId, Message, MessageKey, MessageNonce, MessagePayload, OutboundLaneData};
use crate::{
LaneId, Message, MessageKey, MessageNonce, MessagePayload, OutboundLaneData, VerificationError,
};
use bp_runtime::{messages::MessageDispatchResult, Size};
use codec::{Decode, Encode, Error as CodecError};
@@ -58,9 +60,6 @@ pub struct DispatchMessage<DispatchPayload> {
/// can't change. Wrong implementation may lead to invalid lane states (i.e. lane
/// that's stuck) and/or processing messages without paying fees.
pub trait SourceHeaderChain {
/// Error type.
type Error: Debug;
/// Proof that messages are sent from source chain. This may also include proof
/// of corresponding outbound lane states.
type MessagesProof: Parameter + Size;
@@ -79,7 +78,7 @@ pub trait SourceHeaderChain {
fn verify_messages_proof(
proof: Self::MessagesProof,
messages_count: u32,
) -> Result<ProvedMessages<Message>, Self::Error>;
) -> Result<ProvedMessages<Message>, VerificationError>;
}
/// Called when inbound message is received.
@@ -164,21 +163,20 @@ pub struct ForbidInboundMessages<MessagesProof, DispatchPayload>(
PhantomData<(MessagesProof, DispatchPayload)>,
);
/// Error message that is used in `ForbidOutboundMessages` implementation.
/// Error message that is used in `ForbidInboundMessages` implementation.
const ALL_INBOUND_MESSAGES_REJECTED: &str =
"This chain is configured to reject all inbound messages";
impl<MessagesProof: Parameter + Size, DispatchPayload> SourceHeaderChain
for ForbidInboundMessages<MessagesProof, DispatchPayload>
{
type Error = &'static str;
type MessagesProof = MessagesProof;
fn verify_messages_proof(
_proof: Self::MessagesProof,
_messages_count: u32,
) -> Result<ProvedMessages<Message>, Self::Error> {
Err(ALL_INBOUND_MESSAGES_REJECTED)
) -> Result<ProvedMessages<Message>, VerificationError> {
Err(VerificationError::Other(ALL_INBOUND_MESSAGES_REJECTED))
}
}