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Kiln mev boost (#3062)

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## Issue Addressed

MEV boost compatibility

## Proposed Changes

See #2987

## Additional Info

This is blocked on the stabilization of a couple specs, [here](https://github.com/ethereum/beacon-APIs/pull/194) and [here](https://github.com/flashbots/mev-boost/pull/20).

Additional TODO's and outstanding questions

- [ ] MEV boost JWT Auth
- [ ] Will `builder_proposeBlindedBlock` return the revealed payload for the BN to propogate
- [ ] Should we remove `private-tx-proposals` flag and communicate BN <> VC with blinded blocks by default once these endpoints enter the beacon-API's repo? This simplifies merge transition logic. 

Co-authored-by: realbigsean <seananderson33@gmail.com>
Co-authored-by: realbigsean <sean@sigmaprime.io>
This commit is contained in:
realbigsean
2022-03-31 07:52:23 +00:00
parent 83234ee4ce
commit ea783360d3
48 changed files with 1628 additions and 644 deletions
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183
beacon_node/http_api/src/lib.rs
View File

@@ -45,9 +45,10 @@ use std::sync::Arc;
use tokio::sync::mpsc::UnboundedSender;
use tokio_stream::{wrappers::BroadcastStream, StreamExt};
use types::{
Attestation, AttesterSlashing, BeaconStateError, CommitteeCache, ConfigAndPreset, Epoch,
EthSpec, ForkName, ProposerPreparationData, ProposerSlashing, RelativeEpoch, Signature,
SignedAggregateAndProof, SignedBeaconBlock, SignedContributionAndProof, SignedVoluntaryExit,
Attestation, AttesterSlashing, BeaconBlockBodyMerge, BeaconBlockMerge, BeaconStateError,
BlindedPayload, CommitteeCache, ConfigAndPreset, Epoch, EthSpec, ForkName, FullPayload,
ProposerPreparationData, ProposerSlashing, RelativeEpoch, Signature, SignedAggregateAndProof,
SignedBeaconBlock, SignedBeaconBlockMerge, SignedContributionAndProof, SignedVoluntaryExit,
Slot, SyncCommitteeMessage, SyncContributionData,
};
use version::{
@@ -1022,6 +1023,116 @@ pub fn serve<T: BeaconChainTypes>(
},
);
/*
* beacon/blocks
*/
// POST beacon/blocks
let post_beacon_blinded_blocks = eth1_v1
.and(warp::path("beacon"))
.and(warp::path("blinded_blocks"))
.and(warp::path::end())
.and(warp::body::json())
.and(chain_filter.clone())
.and(network_tx_filter.clone())
.and(log_filter.clone())
.and_then(
|block: SignedBeaconBlock<T::EthSpec, BlindedPayload<_>>,
chain: Arc<BeaconChain<T>>,
network_tx: UnboundedSender<NetworkMessage<T::EthSpec>>,
_log: Logger| {
blocking_json_task(move || {
if let Some(el) = chain.execution_layer.as_ref() {
//FIXME(sean): we may not always receive the payload in this response because it
// should be the relay's job to propogate the block. However, since this block is
// already signed and sent this might be ok (so long as the relay validates
// the block before revealing the payload).
//FIXME(sean) additionally, this endpoint should serve blocks prior to Bellatrix, and should
// be able to support the normal block proposal flow, because at some point full block endpoints
// will be deprecated from the beacon API. This will entail creating full blocks in
// `validator/blinded_blocks`, caching their payloads, and transforming them into blinded
// blocks. We will access the payload of those blocks here. This flow should happen if the
// execution layer has no payload builders or if we have not yet finalized post-merge transition.
let payload = el
.block_on(|el| el.propose_blinded_beacon_block(&block))
.map_err(|e| {
warp_utils::reject::custom_server_error(format!(
"proposal failed: {:?}",
e
))
})?;
let new_block = SignedBeaconBlock::Merge(SignedBeaconBlockMerge {
message: BeaconBlockMerge {
slot: block.message().slot(),
proposer_index: block.message().proposer_index(),
parent_root: block.message().parent_root(),
state_root: block.message().state_root(),
body: BeaconBlockBodyMerge {
randao_reveal: block.message().body().randao_reveal().clone(),
eth1_data: block.message().body().eth1_data().clone(),
graffiti: *block.message().body().graffiti(),
proposer_slashings: block
.message()
.body()
.proposer_slashings()
.clone(),
attester_slashings: block
.message()
.body()
.attester_slashings()
.clone(),
attestations: block.message().body().attestations().clone(),
deposits: block.message().body().deposits().clone(),
voluntary_exits: block
.message()
.body()
.voluntary_exits()
.clone(),
sync_aggregate: block
.message()
.body()
.sync_aggregate()
.unwrap()
.clone(),
execution_payload: payload.into(),
},
},
signature: block.signature().clone(),
});
// Send the block, regardless of whether or not it is valid. The API
// specification is very clear that this is the desired behaviour.
publish_pubsub_message(
&network_tx,
PubsubMessage::BeaconBlock(Box::new(new_block.clone())),
)?;
match chain.process_block(new_block) {
Ok(_) => {
// Update the head since it's likely this block will become the new
// head.
chain
.fork_choice()
.map_err(warp_utils::reject::beacon_chain_error)?;
Ok(())
}
Err(e) => {
let msg = format!("{:?}", e);
Err(warp_utils::reject::broadcast_without_import(msg))
}
}
} else {
Err(warp_utils::reject::custom_server_error(
"no execution layer found".to_string(),
))
}
})
},
);
let block_id_or_err = warp::path::param::<BlockId>().or_else(|_| async {
Err(warp_utils::reject::custom_bad_request(
"Invalid block ID".to_string(),
@@ -1899,7 +2010,69 @@ pub fn serve<T: BeaconChainTypes>(
};
let (block, _) = chain
.produce_block_with_verification(
.produce_block_with_verification::<FullPayload<T::EthSpec>>(
randao_reveal,
slot,
query.graffiti.map(Into::into),
randao_verification,
)
.map_err(warp_utils::reject::block_production_error)?;
let fork_name = block
.to_ref()
.fork_name(&chain.spec)
.map_err(inconsistent_fork_rejection)?;
fork_versioned_response(endpoint_version, fork_name, block)
})
},
);
// GET validator/blinded_blocks/{slot}
let get_validator_blinded_blocks = any_version
.and(warp::path("validator"))
.and(warp::path("blinded_blocks"))
.and(warp::path::param::<Slot>().or_else(|_| async {
Err(warp_utils::reject::custom_bad_request(
"Invalid slot".to_string(),
))
}))
.and(warp::path::end())
.and(not_while_syncing_filter.clone())
.and(warp::query::<api_types::ValidatorBlocksQuery>())
.and(chain_filter.clone())
.and_then(
|endpoint_version: EndpointVersion,
slot: Slot,
query: api_types::ValidatorBlocksQuery,
chain: Arc<BeaconChain<T>>| {
blocking_json_task(move || {
let randao_reveal = query.randao_reveal.as_ref().map_or_else(
|| {
if query.verify_randao {
Err(warp_utils::reject::custom_bad_request(
"randao_reveal is mandatory unless verify_randao=false".into(),
))
} else {
Ok(Signature::empty())
}
},
|sig_bytes| {
sig_bytes.try_into().map_err(|e| {
warp_utils::reject::custom_bad_request(format!(
"randao reveal is not a valid BLS signature: {:?}",
e
))
})
},
)?;
let randao_verification = if query.verify_randao {
ProduceBlockVerification::VerifyRandao
} else {
ProduceBlockVerification::NoVerification
};
let (block, _) = chain
.produce_block_with_verification::<BlindedPayload<T::EthSpec>>(
randao_reveal,
slot,
query.graffiti.map(Into::into),
@@ -2766,6 +2939,7 @@ pub fn serve<T: BeaconChainTypes>(
.or(get_node_peer_count.boxed())
.or(get_validator_duties_proposer.boxed())
.or(get_validator_blocks.boxed())
.or(get_validator_blinded_blocks.boxed())
.or(get_validator_attestation_data.boxed())
.or(get_validator_aggregate_attestation.boxed())
.or(get_validator_sync_committee_contribution.boxed())
@@ -2791,6 +2965,7 @@ pub fn serve<T: BeaconChainTypes>(
.or(warp::post().and(
post_beacon_blocks
.boxed()
.or(post_beacon_blinded_blocks.boxed())
.or(post_beacon_pool_attestations.boxed())
.or(post_beacon_pool_attester_slashings.boxed())
.or(post_beacon_pool_proposer_slashings.boxed())