952 lines
40 KiB
Nim
952 lines
40 KiB
Nim
# Copyright (c) 2018-2022 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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import std/[typetraits, sets, sequtils]
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import stew/[results, base10], chronicles
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import ".."/[beacon_chain_db, beacon_node],
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".."/networking/eth2_network,
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".."/consensus_object_pools/[blockchain_dag, spec_cache,
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attestation_pool, sync_committee_msg_pool],
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".."/validators/validator_duties,
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".."/spec/[beaconstate, forks, network],
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".."/spec/datatypes/[phase0, altair],
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"."/[rest_utils, state_ttl_cache]
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from ".."/spec/datatypes/bellatrix import ExecutionPayload
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from ".."/spec/datatypes/capella import ExecutionPayload
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export rest_utils
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logScope: topics = "rest_validatorapi"
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proc installValidatorApiHandlers*(router: var RestRouter, node: BeaconNode) =
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# https://ethereum.github.io/beacon-APIs/#/Validator/getAttesterDuties
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router.api(MethodPost, "/eth/v1/validator/duties/attester/{epoch}") do (
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epoch: Epoch, contentBody: Option[ContentBody]) -> RestApiResponse:
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let indexList =
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block:
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if contentBody.isNone():
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return RestApiResponse.jsonError(Http400, EmptyRequestBodyError)
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let dres = decodeBody(seq[RestValidatorIndex], contentBody.get())
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if dres.isErr():
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return RestApiResponse.jsonError(Http400,
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InvalidValidatorIndexValueError,
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$dres.error())
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var res: HashSet[ValidatorIndex]
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let items = dres.get()
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for item in items:
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let vres = item.toValidatorIndex()
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if vres.isErr():
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case vres.error()
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of ValidatorIndexError.TooHighValue:
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return RestApiResponse.jsonError(Http400,
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TooHighValidatorIndexValueError)
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of ValidatorIndexError.UnsupportedValue:
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return RestApiResponse.jsonError(Http500,
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UnsupportedValidatorIndexValueError)
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res.incl(vres.get())
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if len(res) == 0:
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return RestApiResponse.jsonError(Http400,
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EmptyValidatorIndexArrayError)
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res
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let qepoch =
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block:
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if epoch.isErr():
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return RestApiResponse.jsonError(Http400, InvalidEpochValueError,
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$epoch.error())
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let
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res = epoch.get()
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wallTime = node.beaconClock.now() + MAXIMUM_GOSSIP_CLOCK_DISPARITY
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wallEpoch = wallTime.slotOrZero().epoch
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if res > wallEpoch + 1:
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return RestApiResponse.jsonError(Http400, InvalidEpochValueError,
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"Cannot request duties past next epoch")
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res
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let qhead =
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block:
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let res = node.getSyncedHead(qepoch)
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if res.isErr():
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return RestApiResponse.jsonError(Http503, BeaconNodeInSyncError)
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res.get()
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let shufflingRef = node.dag.getShufflingRef(qhead, qepoch, true).valueOr:
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return RestApiResponse.jsonError(Http400, PrunedStateError)
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let duties =
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block:
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var res: seq[RestAttesterDuty]
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let
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committees_per_slot = get_committee_count_per_slot(shufflingRef)
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for committee_index in get_committee_indices(committees_per_slot):
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for slot in qepoch.slots():
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let
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committee =
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get_beacon_committee(shufflingRef, slot, committee_index)
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for index_in_committee, validator_index in committee:
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if validator_index in indexList:
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let validator_key = node.dag.validatorKey(validator_index)
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if validator_key.isSome():
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res.add(
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RestAttesterDuty(
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pubkey: validator_key.get().toPubKey(),
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validator_index: validator_index,
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committee_index: committee_index,
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committee_length: lenu64(committee),
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committees_at_slot: committees_per_slot,
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validator_committee_index: uint64(index_in_committee),
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slot: slot
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)
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)
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res
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# getSyncedHead() implies non-optimistic node.
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let optimistic =
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if node.currentSlot().epoch() >= node.dag.cfg.BELLATRIX_FORK_EPOCH:
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some(false)
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else:
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none[bool]()
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return RestApiResponse.jsonResponseWRoot(
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duties, shufflingRef.attester_dependent_root, optimistic)
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# https://ethereum.github.io/beacon-APIs/#/Validator/getProposerDuties
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router.api(MethodGet, "/eth/v1/validator/duties/proposer/{epoch}") do (
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epoch: Epoch) -> RestApiResponse:
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let qepoch =
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block:
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if epoch.isErr():
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return RestApiResponse.jsonError(Http400, InvalidEpochValueError,
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$epoch.error())
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let
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res = epoch.get()
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wallTime = node.beaconClock.now() + MAXIMUM_GOSSIP_CLOCK_DISPARITY
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wallEpoch = wallTime.slotOrZero().epoch
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if res > wallEpoch + 1:
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return RestApiResponse.jsonError(Http400, InvalidEpochValueError,
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"Cannot request duties past next epoch")
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res
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let qhead =
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block:
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let res = node.getSyncedHead(qepoch)
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if res.isErr():
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return RestApiResponse.jsonError(Http503, BeaconNodeInSyncError)
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res.get()
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let epochRef = node.dag.getEpochRef(qhead, qepoch, true).valueOr:
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return RestApiResponse.jsonError(Http400, PrunedStateError, $error)
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let duties =
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block:
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var res: seq[RestProposerDuty]
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for i, bp in epochRef.beacon_proposers:
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if i == 0 and qepoch == 0:
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# Fix for https://github.com/status-im/nimbus-eth2/issues/2488
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# Slot(0) at Epoch(0) do not have a proposer.
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continue
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if bp.isSome():
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res.add(
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RestProposerDuty(
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pubkey: node.dag.validatorKey(bp.get()).get().toPubKey(),
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validator_index: bp.get(),
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slot: qepoch.start_slot() + i
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)
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)
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res
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# getSyncedHead() implies non-optimistic node.
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let optimistic =
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if node.currentSlot().epoch() >= node.dag.cfg.BELLATRIX_FORK_EPOCH:
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some(false)
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else:
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none[bool]()
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return RestApiResponse.jsonResponseWRoot(
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duties, epochRef.proposer_dependent_root, optimistic)
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router.api(MethodPost, "/eth/v1/validator/duties/sync/{epoch}") do (
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epoch: Epoch, contentBody: Option[ContentBody]) -> RestApiResponse:
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let indexList =
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block:
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if contentBody.isNone():
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return RestApiResponse.jsonError(Http400, EmptyRequestBodyError)
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let dres = decodeBody(seq[RestValidatorIndex], contentBody.get())
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if dres.isErr():
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return RestApiResponse.jsonError(Http400,
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InvalidValidatorIndexValueError,
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$dres.error())
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var res: seq[ValidatorIndex]
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let items = dres.get()
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for item in items:
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let vres = item.toValidatorIndex()
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if vres.isErr():
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case vres.error()
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of ValidatorIndexError.TooHighValue:
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return RestApiResponse.jsonError(Http400,
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TooHighValidatorIndexValueError)
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of ValidatorIndexError.UnsupportedValue:
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return RestApiResponse.jsonError(Http500,
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UnsupportedValidatorIndexValueError)
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res.add(vres.get())
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if len(res) == 0:
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return RestApiResponse.jsonError(Http400,
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EmptyValidatorIndexArrayError)
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res
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let qepoch =
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block:
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if epoch.isErr():
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return RestApiResponse.jsonError(Http400, InvalidEpochValueError,
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$epoch.error())
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let res = epoch.get()
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if res > MaxEpoch:
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return RestApiResponse.jsonError(Http400, EpochOverflowValueError)
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res
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# We use a local proc in order to:
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# * avoid code duplication
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# * reduce code bloat from `withState`
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proc produceResponse(requestedValidatorIndices: openArray[ValidatorIndex],
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syncCommittee: openArray[ValidatorPubKey],
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stateValidators: seq[Validator]
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): seq[RestSyncCommitteeDuty] {.nimcall.} =
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result = newSeqOfCap[RestSyncCommitteeDuty](len(requestedValidatorIndices))
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for requestedValidatorIdx in requestedValidatorIndices:
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if requestedValidatorIdx.uint64 >= stateValidators.lenu64:
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# If the requested validator index was not valid within this old
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# state, it's not possible that it will sit on the sync committee.
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# Since this API must omit results for validators that don't have
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# duties, we can simply ingnore this requested index.
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# (we won't bother to validate it against a more recent state).
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continue
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let requestedValidatorPubkey =
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stateValidators[requestedValidatorIdx].pubkey
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var indicesInSyncCommittee = newSeq[IndexInSyncCommittee]()
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for idx, syncCommitteeMemberPubkey in syncCommittee:
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if syncCommitteeMemberPubkey == requestedValidatorPubkey:
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indicesInSyncCommittee.add(IndexInSyncCommittee idx)
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if indicesInSyncCommittee.len > 0:
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result.add RestSyncCommitteeDuty(
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pubkey: requestedValidatorPubkey,
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validator_index: requestedValidatorIdx,
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validator_sync_committee_indices: indicesInSyncCommittee)
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template emptyResponse: auto =
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newSeq[RestSyncCommitteeDuty]()
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# We check the head state first in order to avoid costly replays
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# if possible:
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let
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qSyncPeriod = sync_committee_period(qepoch)
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headEpoch = node.dag.head.slot.epoch
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headSyncPeriod = sync_committee_period(headEpoch)
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if qSyncPeriod == headSyncPeriod:
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let optimistic = node.getStateOptimistic(node.dag.headState)
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let res = withState(node.dag.headState):
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when stateFork >= ConsensusFork.Altair:
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produceResponse(indexList,
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forkyState.data.current_sync_committee.pubkeys.data,
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forkyState.data.validators.asSeq)
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else:
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emptyResponse()
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return RestApiResponse.jsonResponseWOpt(res, optimistic)
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elif qSyncPeriod == (headSyncPeriod + 1):
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let optimistic = node.getStateOptimistic(node.dag.headState)
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let res = withState(node.dag.headState):
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when stateFork >= ConsensusFork.Altair:
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produceResponse(indexList,
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forkyState.data.next_sync_committee.pubkeys.data,
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forkyState.data.validators.asSeq)
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else:
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emptyResponse()
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return RestApiResponse.jsonResponseWOpt(res, optimistic)
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elif qSyncPeriod > headSyncPeriod:
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# The requested epoch may still be too far in the future.
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if node.isSynced(node.dag.head) != SyncStatus.synced:
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return RestApiResponse.jsonError(Http503, BeaconNodeInSyncError)
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else:
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return RestApiResponse.jsonError(Http400, EpochFromFutureError)
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else:
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# The slot at the start of the sync committee period is likely to have a
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# state snapshot in the database, so we can restore the state relatively
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# cheaply:
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let earliestSlotInQSyncPeriod =
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Slot(qSyncPeriod * SLOTS_PER_SYNC_COMMITTEE_PERIOD)
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# TODO
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# The DAG can offer a short-cut for getting just the information we need
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# in order to compute the sync committee for the epoch. See the following
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# discussion for more details:
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# https://github.com/status-im/nimbus-eth2/pull/3133#pullrequestreview-817184693
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let bsi = node.dag.getBlockIdAtSlot(earliestSlotInQSyncPeriod).valueOr:
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return RestApiResponse.jsonError(Http404, StateNotFoundError)
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node.withStateForBlockSlotId(bsi):
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let optimistic = node.getStateOptimistic(state)
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let res = withState(state):
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when stateFork >= ConsensusFork.Altair:
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produceResponse(indexList,
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forkyState.data.current_sync_committee.pubkeys.data,
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forkyState.data.validators.asSeq)
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else:
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emptyResponse()
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return RestApiResponse.jsonResponseWOpt(res, optimistic)
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return RestApiResponse.jsonError(Http404, StateNotFoundError)
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# https://ethereum.github.io/beacon-APIs/#/Validator/produceBlock
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router.api(MethodGet, "/eth/v1/validator/blocks/{slot}") do (
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slot: Slot, randao_reveal: Option[ValidatorSig],
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graffiti: Option[GraffitiBytes]) -> RestApiResponse:
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return RestApiResponse.jsonError(
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Http410, DeprecatedRemovalValidatorBlocksV1)
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# https://ethereum.github.io/beacon-APIs/#/Validator/produceBlockV2
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router.api(MethodGet, "/eth/v2/validator/blocks/{slot}") do (
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slot: Slot, randao_reveal: Option[ValidatorSig],
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graffiti: Option[GraffitiBytes],
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skip_randao_verification: Option[string]) -> RestApiResponse:
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let message =
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block:
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let qslot = block:
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if slot.isErr():
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return RestApiResponse.jsonError(Http400, InvalidSlotValueError,
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$slot.error())
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let res = slot.get()
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if res <= node.dag.finalizedHead.slot:
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return RestApiResponse.jsonError(Http400, InvalidSlotValueError,
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"Slot already finalized")
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let
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wallTime = node.beaconClock.now() + MAXIMUM_GOSSIP_CLOCK_DISPARITY
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if res > wallTime.slotOrZero:
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return RestApiResponse.jsonError(Http400, InvalidSlotValueError,
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"Slot cannot be in the future")
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res
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let qskip_randao_verification =
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if skip_randao_verification.isNone():
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false
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else:
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let res = skip_randao_verification.get()
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if res.isErr() or res.get() != "":
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return RestApiResponse.jsonError(Http400,
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InvalidSkipRandaoVerificationValue)
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true
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let qrandao =
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if randao_reveal.isNone():
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return RestApiResponse.jsonError(Http400, MissingRandaoRevealValue)
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else:
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let res = randao_reveal.get()
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if res.isErr():
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return RestApiResponse.jsonError(Http400,
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InvalidRandaoRevealValue,
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$res.error())
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res.get()
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let qgraffiti =
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if graffiti.isNone():
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defaultGraffitiBytes()
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else:
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let res = graffiti.get()
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if res.isErr():
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return RestApiResponse.jsonError(Http400,
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InvalidGraffitiBytesValue,
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$res.error())
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res.get()
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let qhead =
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block:
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let res = node.getSyncedHead(qslot)
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if res.isErr():
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return RestApiResponse.jsonError(Http503, BeaconNodeInSyncError,
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$res.error())
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res.get()
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let
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proposer = node.dag.getProposer(qhead, qslot).valueOr:
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return RestApiResponse.jsonError(Http400, ProposerNotFoundError)
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if not node.verifyRandao(
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qslot, proposer, qrandao, qskip_randao_verification):
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return RestApiResponse.jsonError(Http400, InvalidRandaoRevealValue)
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let res =
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if qslot.epoch >= node.dag.cfg.CAPELLA_FORK_EPOCH:
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await makeBeaconBlockForHeadAndSlot[capella.ExecutionPayload](
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node, qrandao, proposer, qgraffiti, qhead, qslot)
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else:
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await makeBeaconBlockForHeadAndSlot[bellatrix.ExecutionPayload](
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node, qrandao, proposer, qgraffiti, qhead, qslot)
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if res.isErr():
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return RestApiResponse.jsonError(Http400, res.error())
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res.get()
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return RestApiResponse.jsonResponsePlain(message)
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# https://ethereum.github.io/beacon-APIs/#/Validator/produceBlindedBlock
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# https://github.com/ethereum/beacon-APIs/blob/v2.3.0/apis/validator/blinded_block.yaml
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router.api(MethodGet, "/eth/v1/validator/blinded_blocks/{slot}") do (
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slot: Slot, randao_reveal: Option[ValidatorSig],
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graffiti: Option[GraffitiBytes],
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skip_randao_verification: Option[string]) -> RestApiResponse:
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## Requests a beacon node to produce a valid blinded block, which can then
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## be signed by a validator. A blinded block is a block with only a
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## transactions root, rather than a full transactions list.
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##
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## Metadata in the response indicates the type of block produced, and the
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## supported types of block will be added to as forks progress.
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let contentType =
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block:
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let res = preferredContentType(jsonMediaType,
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sszMediaType)
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if res.isErr():
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return RestApiResponse.jsonError(Http406, ContentNotAcceptableError)
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res.get()
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let qslot = block:
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if slot.isErr():
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return RestApiResponse.jsonError(Http400, InvalidSlotValueError,
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$slot.error())
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let res = slot.get()
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if res <= node.dag.finalizedHead.slot:
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return RestApiResponse.jsonError(Http400, InvalidSlotValueError,
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"Slot already finalized")
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let
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wallTime = node.beaconClock.now() + MAXIMUM_GOSSIP_CLOCK_DISPARITY
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if res > wallTime.slotOrZero:
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return RestApiResponse.jsonError(Http400, InvalidSlotValueError,
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"Slot cannot be in the future")
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res
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let qskip_randao_verification =
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if skip_randao_verification.isNone():
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false
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else:
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let res = skip_randao_verification.get()
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if res.isErr() or res.get() != "":
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return RestApiResponse.jsonError(Http400,
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InvalidSkipRandaoVerificationValue)
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true
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let qrandao =
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if randao_reveal.isNone():
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return RestApiResponse.jsonError(Http400, MissingRandaoRevealValue)
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else:
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let res = randao_reveal.get()
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if res.isErr():
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return RestApiResponse.jsonError(Http400,
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InvalidRandaoRevealValue,
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$res.error())
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res.get()
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let qgraffiti =
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if graffiti.isNone():
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defaultGraffitiBytes()
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else:
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let res = graffiti.get()
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if res.isErr():
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return RestApiResponse.jsonError(Http400,
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InvalidGraffitiBytesValue,
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$res.error())
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res.get()
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let qhead =
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block:
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let res = node.getSyncedHead(qslot)
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if res.isErr():
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return RestApiResponse.jsonError(Http503, BeaconNodeInSyncError,
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$res.error())
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res.get()
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let proposer = node.dag.getProposer(qhead, qslot).valueOr:
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return RestApiResponse.jsonError(Http400, ProposerNotFoundError)
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if not node.verifyRandao(
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qslot, proposer, qrandao, qskip_randao_verification):
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return RestApiResponse.jsonError(Http400, InvalidRandaoRevealValue)
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|
|
template responsePlain(response: untyped): untyped =
|
|
if contentType == sszMediaType:
|
|
RestApiResponse.sszResponse(response)
|
|
elif contentType == jsonMediaType:
|
|
RestApiResponse.jsonResponsePlain(response)
|
|
else:
|
|
RestApiResponse.jsonError(Http500, InvalidAcceptError)
|
|
|
|
if node.currentSlot().epoch() >= node.dag.cfg.BELLATRIX_FORK_EPOCH:
|
|
let res = await makeBlindedBeaconBlockForHeadAndSlot(
|
|
node, qrandao, proposer, qgraffiti, qhead, qslot)
|
|
if res.isErr():
|
|
return RestApiResponse.jsonError(Http400, res.error())
|
|
return responsePlain(ForkedBlindedBeaconBlock(
|
|
kind: ConsensusFork.Bellatrix,
|
|
bellatrixData: res.get()))
|
|
else:
|
|
# Pre-Bellatrix, this endpoint will return a BeaconBlock
|
|
let res = await makeBeaconBlockForHeadAndSlot[bellatrix.ExecutionPayload](
|
|
node, qrandao, proposer, qgraffiti, qhead, qslot)
|
|
if res.isErr():
|
|
return RestApiResponse.jsonError(Http400, res.error())
|
|
return responsePlain(res.get())
|
|
|
|
# https://ethereum.github.io/beacon-APIs/#/Validator/produceAttestationData
|
|
router.api(MethodGet, "/eth/v1/validator/attestation_data") do (
|
|
slot: Option[Slot],
|
|
committee_index: Option[CommitteeIndex]) -> RestApiResponse:
|
|
let adata =
|
|
block:
|
|
let qslot =
|
|
block:
|
|
if slot.isNone():
|
|
return RestApiResponse.jsonError(Http400, MissingSlotValueError)
|
|
let res = slot.get()
|
|
if res.isErr():
|
|
return RestApiResponse.jsonError(Http400, InvalidSlotValueError,
|
|
$res.error())
|
|
res.get()
|
|
if qslot <= node.dag.finalizedHead.slot:
|
|
return RestApiResponse.jsonError(Http400, InvalidSlotValueError,
|
|
"Slot already finalized")
|
|
let
|
|
wallTime = node.beaconClock.now()
|
|
if qslot > (wallTime + MAXIMUM_GOSSIP_CLOCK_DISPARITY).slotOrZero:
|
|
return RestApiResponse.jsonError(
|
|
Http400, InvalidSlotValueError, "Slot cannot be in the future")
|
|
if qslot + SLOTS_PER_EPOCH <
|
|
(wallTime - MAXIMUM_GOSSIP_CLOCK_DISPARITY).slotOrZero:
|
|
return RestApiResponse.jsonError(
|
|
Http400, InvalidSlotValueError,
|
|
"Slot cannot be more than an epoch in the past")
|
|
|
|
let qindex =
|
|
block:
|
|
if committee_index.isNone():
|
|
return RestApiResponse.jsonError(Http400,
|
|
MissingCommitteeIndexValueError)
|
|
let res = committee_index.get()
|
|
if res.isErr():
|
|
return RestApiResponse.jsonError(Http400,
|
|
InvalidCommitteeIndexValueError,
|
|
$res.error())
|
|
res.get()
|
|
let qhead =
|
|
block:
|
|
let res = node.getSyncedHead(qslot)
|
|
if res.isErr():
|
|
return RestApiResponse.jsonError(Http503, BeaconNodeInSyncError)
|
|
res.get()
|
|
let epochRef = node.dag.getEpochRef(qhead, qslot.epoch, true).valueOr:
|
|
return RestApiResponse.jsonError(Http400, PrunedStateError, $error)
|
|
makeAttestationData(epochRef, qhead.atSlot(qslot), qindex)
|
|
return RestApiResponse.jsonResponse(adata)
|
|
|
|
# https://ethereum.github.io/beacon-APIs/#/Validator/getAggregatedAttestation
|
|
router.api(MethodGet, "/eth/v1/validator/aggregate_attestation") do (
|
|
attestation_data_root: Option[Eth2Digest],
|
|
slot: Option[Slot]) -> RestApiResponse:
|
|
let attestation =
|
|
block:
|
|
let qslot =
|
|
block:
|
|
if slot.isNone():
|
|
return RestApiResponse.jsonError(Http400, MissingSlotValueError)
|
|
let res = slot.get()
|
|
if res.isErr():
|
|
return RestApiResponse.jsonError(Http400, InvalidSlotValueError,
|
|
$res.error())
|
|
res.get()
|
|
let qroot =
|
|
block:
|
|
if attestation_data_root.isNone():
|
|
return RestApiResponse.jsonError(Http400,
|
|
MissingAttestationDataRootValueError)
|
|
let res = attestation_data_root.get()
|
|
if res.isErr():
|
|
return RestApiResponse.jsonError(Http400,
|
|
InvalidAttestationDataRootValueError, $res.error())
|
|
res.get()
|
|
let res =
|
|
node.attestationPool[].getAggregatedAttestation(qslot, qroot)
|
|
if res.isNone():
|
|
return RestApiResponse.jsonError(Http400,
|
|
UnableToGetAggregatedAttestationError)
|
|
res.get()
|
|
return RestApiResponse.jsonResponse(attestation)
|
|
|
|
# https://ethereum.github.io/beacon-APIs/#/Validator/publishAggregateAndProofs
|
|
router.api(MethodPost, "/eth/v1/validator/aggregate_and_proofs") do (
|
|
contentBody: Option[ContentBody]) -> RestApiResponse:
|
|
let proofs =
|
|
block:
|
|
if contentBody.isNone():
|
|
return RestApiResponse.jsonError(Http400, EmptyRequestBodyError)
|
|
let dres = decodeBody(seq[SignedAggregateAndProof], contentBody.get())
|
|
if dres.isErr():
|
|
return RestApiResponse.jsonError(Http400,
|
|
InvalidAggregateAndProofObjectError,
|
|
$dres.error())
|
|
dres.get()
|
|
# Since our validation logic supports batch processing, we will submit all
|
|
# aggregated attestations for validation.
|
|
let pending =
|
|
block:
|
|
var res: seq[Future[SendResult]]
|
|
for proof in proofs:
|
|
res.add(node.router.routeSignedAggregateAndProof(proof))
|
|
res
|
|
await allFutures(pending)
|
|
for future in pending:
|
|
if future.done():
|
|
let res = future.read()
|
|
if res.isErr():
|
|
return RestApiResponse.jsonError(Http400,
|
|
AggregateAndProofValidationError,
|
|
$res.error())
|
|
else:
|
|
return RestApiResponse.jsonError(Http500,
|
|
"Unexpected server failure, while sending aggregate and proof")
|
|
return RestApiResponse.jsonMsgResponse(AggregateAndProofValidationSuccess)
|
|
|
|
# https://ethereum.github.io/beacon-APIs/#/Validator/prepareBeaconCommitteeSubnet
|
|
router.api(MethodPost,
|
|
"/eth/v1/validator/beacon_committee_subscriptions") do (
|
|
contentBody: Option[ContentBody]) -> RestApiResponse:
|
|
let requests =
|
|
block:
|
|
if contentBody.isNone():
|
|
return RestApiResponse.jsonError(Http400, EmptyRequestBodyError)
|
|
let dres = decodeBody(seq[RestCommitteeSubscription],
|
|
contentBody.get())
|
|
if dres.isErr():
|
|
return RestApiResponse.jsonError(Http400,
|
|
InvalidSubscriptionRequestValueError,
|
|
$dres.error())
|
|
dres.get()
|
|
if node.isSynced(node.dag.head) != SyncStatus.synced:
|
|
return RestApiResponse.jsonError(Http503, BeaconNodeInSyncError)
|
|
|
|
let
|
|
wallSlot = node.beaconClock.now.slotOrZero
|
|
wallEpoch = wallSlot.epoch
|
|
head = node.dag.head
|
|
|
|
var currentEpoch, nextEpoch: Opt[ShufflingRef]
|
|
template getAndCacheShufflingRef(shufflingRefVar: var Opt[ShufflingRef],
|
|
epoch: Epoch): ShufflingRef =
|
|
if shufflingRefVar.isNone:
|
|
shufflingRefVar = block:
|
|
let tmp = node.dag.getShufflingRef(head, epoch, true).valueOr:
|
|
return RestApiResponse.jsonError(Http400, PrunedStateError)
|
|
Opt.some tmp
|
|
|
|
shufflingRefVar.get
|
|
|
|
for request in requests:
|
|
if uint64(request.committee_index) >= uint64(MAX_COMMITTEES_PER_SLOT):
|
|
return RestApiResponse.jsonError(Http400,
|
|
InvalidCommitteeIndexValueError)
|
|
if uint64(request.validator_index) >=
|
|
lenu64(getStateField(node.dag.headState, validators)):
|
|
return RestApiResponse.jsonError(Http400,
|
|
InvalidValidatorIndexValueError)
|
|
if wallSlot > request.slot + 1:
|
|
return RestApiResponse.jsonError(Http400, SlotFromThePastError)
|
|
|
|
let
|
|
epoch = request.slot.epoch
|
|
shufflingRef =
|
|
if epoch == wallEpoch:
|
|
currentEpoch.getAndCacheShufflingRef(wallEpoch)
|
|
elif epoch == wallEpoch + 1:
|
|
nextEpoch.getAndCacheShufflingRef(wallEpoch + 1)
|
|
else:
|
|
return RestApiResponse.jsonError(Http400,
|
|
SlotNotInNextWallSlotEpochError)
|
|
|
|
let subnet_id = compute_subnet_for_attestation(
|
|
get_committee_count_per_slot(shufflingRef), request.slot,
|
|
request.committee_index)
|
|
|
|
if not is_active_validator(
|
|
getStateField(
|
|
node.dag.headState, validators).item(request.validator_index),
|
|
request.slot.epoch):
|
|
return RestApiResponse.jsonError(Http400, ValidatorNotActive)
|
|
|
|
node.consensusManager[].actionTracker.registerDuty(
|
|
request.slot, subnet_id, request.validator_index,
|
|
request.is_aggregator)
|
|
|
|
let validator_pubkey =
|
|
getStateField(node.dag.headState, validators).item(
|
|
request.validator_index).pubkey
|
|
|
|
node.validatorMonitor[].addAutoMonitor(
|
|
validator_pubkey, ValidatorIndex(request.validator_index))
|
|
|
|
return RestApiResponse.jsonMsgResponse(BeaconCommitteeSubscriptionSuccess)
|
|
|
|
# https://ethereum.github.io/beacon-APIs/#/Validator/prepareSyncCommitteeSubnets
|
|
router.api(MethodPost,
|
|
"/eth/v1/validator/sync_committee_subscriptions") do (
|
|
contentBody: Option[ContentBody]) -> RestApiResponse:
|
|
let subscriptions =
|
|
block:
|
|
var res: seq[RestSyncCommitteeSubscription]
|
|
if contentBody.isNone():
|
|
return RestApiResponse.jsonError(Http400, EmptyRequestBodyError)
|
|
let dres = decodeBody(seq[RestSyncCommitteeSubscription],
|
|
contentBody.get())
|
|
if dres.isErr():
|
|
return RestApiResponse.jsonError(Http400,
|
|
InvalidSyncCommitteeSubscriptionRequestError)
|
|
let subs = dres.get()
|
|
for item in subs:
|
|
if item.until_epoch > MaxEpoch:
|
|
return RestApiResponse.jsonError(Http400, EpochOverflowValueError)
|
|
if item.until_epoch < node.dag.cfg.ALTAIR_FORK_EPOCH:
|
|
return RestApiResponse.jsonError(Http400,
|
|
EpochFromTheIncorrectForkError)
|
|
if uint64(item.validator_index) >=
|
|
lenu64(getStateField(node.dag.headState, validators)):
|
|
return RestApiResponse.jsonError(Http400,
|
|
InvalidValidatorIndexValueError)
|
|
res.add(item)
|
|
res
|
|
|
|
for item in subscriptions:
|
|
let validator_pubkey =
|
|
getStateField(node.dag.headState, validators).item(
|
|
item.validator_index).pubkey
|
|
|
|
node.consensusManager[].actionTracker.registerSyncDuty(
|
|
validator_pubkey, item.until_epoch)
|
|
|
|
node.validatorMonitor[].addAutoMonitor(
|
|
validator_pubkey, ValidatorIndex(item.validator_index))
|
|
|
|
return RestApiResponse.jsonMsgResponse(SyncCommitteeSubscriptionSuccess)
|
|
|
|
# https://ethereum.github.io/beacon-APIs/#/Validator/produceSyncCommitteeContribution
|
|
router.api(MethodGet,
|
|
"/eth/v1/validator/sync_committee_contribution") do (
|
|
slot: Option[Slot], subcommittee_index: Option[SyncSubCommitteeIndex],
|
|
beacon_block_root: Option[Eth2Digest]) -> RestApiResponse:
|
|
let qslot = block:
|
|
if slot.isNone():
|
|
return RestApiResponse.jsonError(Http400, MissingSlotValueError)
|
|
|
|
let res = slot.get()
|
|
if res.isErr():
|
|
return RestApiResponse.jsonError(Http400, InvalidSlotValueError,
|
|
$res.error())
|
|
let rslot = res.get()
|
|
if epoch(rslot) < node.dag.cfg.ALTAIR_FORK_EPOCH:
|
|
return RestApiResponse.jsonError(Http400,
|
|
SlotFromTheIncorrectForkError)
|
|
rslot
|
|
if qslot <= node.dag.finalizedHead.slot:
|
|
return RestApiResponse.jsonError(Http400, InvalidSlotValueError,
|
|
"Slot already finalized")
|
|
let qindex =
|
|
if subcommittee_index.isNone():
|
|
return RestApiResponse.jsonError(Http400,
|
|
MissingSubCommitteeIndexValueError)
|
|
else:
|
|
let res = subcommittee_index.get()
|
|
if res.isErr():
|
|
return RestApiResponse.jsonError(Http400,
|
|
InvalidSubCommitteeIndexValueError,
|
|
$res.error())
|
|
res.get()
|
|
let qroot =
|
|
if beacon_block_root.isNone():
|
|
return RestApiResponse.jsonError(Http400,
|
|
MissingBeaconBlockRootValueError)
|
|
else:
|
|
let res = beacon_block_root.get()
|
|
if res.isErr():
|
|
return RestApiResponse.jsonError(Http400,
|
|
InvalidBeaconBlockRootValueError,
|
|
$res.error())
|
|
res.get()
|
|
|
|
# Check if node is fully synced.
|
|
let sres = node.getSyncedHead(qslot)
|
|
if sres.isErr():
|
|
return RestApiResponse.jsonError(Http503, BeaconNodeInSyncError)
|
|
|
|
var contribution = SyncCommitteeContribution()
|
|
let res = node.syncCommitteeMsgPool[].produceContribution(
|
|
qslot, qroot, qindex, contribution)
|
|
if not(res):
|
|
return RestApiResponse.jsonError(Http400, ProduceContributionError)
|
|
return RestApiResponse.jsonResponse(contribution)
|
|
|
|
# https://ethereum.github.io/beacon-APIs/#/Validator/publishContributionAndProofs
|
|
router.api(MethodPost,
|
|
"/eth/v1/validator/contribution_and_proofs") do (
|
|
contentBody: Option[ContentBody]) -> RestApiResponse:
|
|
let proofs =
|
|
block:
|
|
if contentBody.isNone():
|
|
return RestApiResponse.jsonError(Http400, EmptyRequestBodyError)
|
|
let dres = decodeBody(seq[SignedContributionAndProof],
|
|
contentBody.get())
|
|
if dres.isErr():
|
|
return RestApiResponse.jsonError(Http400,
|
|
InvalidContributionAndProofMessageError)
|
|
dres.get()
|
|
|
|
let pending =
|
|
block:
|
|
var res: seq[Future[SendResult]]
|
|
for proof in proofs:
|
|
res.add(node.router.routeSignedContributionAndProof(proof, true))
|
|
res
|
|
|
|
let failures =
|
|
block:
|
|
var res: seq[RestIndexedErrorMessageItem]
|
|
await allFutures(pending)
|
|
for index, future in pending:
|
|
if future.done():
|
|
let fres = future.read()
|
|
if fres.isErr():
|
|
let failure = RestIndexedErrorMessageItem(index: index,
|
|
message: $fres.error())
|
|
res.add(failure)
|
|
elif future.failed() or future.cancelled():
|
|
# This is unexpected failure, so we log the error message.
|
|
let exc = future.readError()
|
|
let failure = RestIndexedErrorMessageItem(index: index,
|
|
message: $exc.msg)
|
|
res.add(failure)
|
|
res
|
|
|
|
if len(failures) > 0:
|
|
return RestApiResponse.jsonErrorList(Http400,
|
|
ContributionAndProofValidationError,
|
|
failures)
|
|
else:
|
|
return RestApiResponse.jsonMsgResponse(
|
|
ContributionAndProofValidationSuccess
|
|
)
|
|
|
|
# https://ethereum.github.io/beacon-APIs/#/ValidatorRequiredApi/prepareBeaconProposer
|
|
router.api(MethodPost,
|
|
"/eth/v1/validator/prepare_beacon_proposer") do (
|
|
contentBody: Option[ContentBody]) -> RestApiResponse:
|
|
let
|
|
body =
|
|
block:
|
|
if contentBody.isNone():
|
|
return RestApiResponse.jsonError(Http400, EmptyRequestBodyError)
|
|
let dres = decodeBody(seq[PrepareBeaconProposer], contentBody.get())
|
|
if dres.isErr():
|
|
return RestApiResponse.jsonError(Http400,
|
|
InvalidPrepareBeaconProposerError)
|
|
dres.get()
|
|
currentEpoch = node.beaconClock.now.slotOrZero.epoch
|
|
|
|
for proposerData in body:
|
|
node.dynamicFeeRecipientsStore[].addMapping(
|
|
proposerData.validator_index,
|
|
proposerData.fee_recipient,
|
|
currentEpoch)
|
|
|
|
return RestApiResponse.response("", Http200, "text/plain")
|
|
|
|
# https://ethereum.github.io/beacon-APIs/#/Validator/registerValidator
|
|
# https://github.com/ethereum/beacon-APIs/blob/v2.3.0/apis/validator/register_validator.yaml
|
|
router.api(MethodPost,
|
|
"/eth/v1/validator/register_validator") do (
|
|
contentBody: Option[ContentBody]) -> RestApiResponse:
|
|
let
|
|
body =
|
|
block:
|
|
if contentBody.isNone():
|
|
return RestApiResponse.jsonError(Http400, EmptyRequestBodyError)
|
|
let dres = decodeBody(seq[SignedValidatorRegistrationV1], contentBody.get())
|
|
if dres.isErr():
|
|
return RestApiResponse.jsonError(Http400,
|
|
InvalidPrepareBeaconProposerError)
|
|
dres.get()
|
|
|
|
for signedValidatorRegistration in body:
|
|
# Don't validate beyond syntactically, because
|
|
# "requests containing currently inactive or unknown validator pubkeys
|
|
# will be accepted, as they may become active at a later epoch". Along
|
|
# these lines, even if it's adding a validator the BN already has as a
|
|
# local validator, the keymanager API might remove that from the BN.
|
|
node.externalBuilderRegistrations[signedValidatorRegistration.message.pubkey] =
|
|
signedValidatorRegistration
|
|
|
|
return RestApiResponse.response("", Http200, "text/plain")
|
|
|
|
# https://github.com/ethereum/beacon-APIs/blob/master/apis/validator/liveness.yaml
|
|
router.api(MethodPost, "/eth/v1/validator/liveness/{epoch}") do (
|
|
epoch: Epoch, contentBody: Option[ContentBody]) -> RestApiResponse:
|
|
let
|
|
qepoch =
|
|
block:
|
|
if epoch.isErr():
|
|
return RestApiResponse.jsonError(Http400, InvalidEpochValueError,
|
|
$epoch.error())
|
|
let
|
|
res = epoch.get()
|
|
wallEpoch = node.currentSlot().epoch()
|
|
nextEpoch =
|
|
if wallEpoch == FAR_FUTURE_EPOCH:
|
|
wallEpoch
|
|
else:
|
|
wallEpoch + 1
|
|
prevEpoch = get_previous_epoch(wallEpoch)
|
|
if (res < prevEpoch) or (res > nextEpoch):
|
|
return RestApiResponse.jsonError(Http400, InvalidEpochValueError,
|
|
"Requested epoch is more than one epoch from current epoch")
|
|
|
|
if res < node.processor[].doppelgangerDetection.broadcastStartEpoch:
|
|
# We can't accurately respond if we're not in sync and aren't
|
|
# processing gossip
|
|
return RestApiResponse.jsonError(Http503, BeaconNodeInSyncError)
|
|
res
|
|
indexList =
|
|
block:
|
|
if contentBody.isNone():
|
|
return RestApiResponse.jsonError(Http400, EmptyRequestBodyError)
|
|
let dres = decodeBody(seq[RestValidatorIndex], contentBody.get())
|
|
if dres.isErr():
|
|
return RestApiResponse.jsonError(Http400,
|
|
InvalidValidatorIndexValueError,
|
|
$dres.error())
|
|
var
|
|
res: seq[ValidatorIndex]
|
|
dupset: HashSet[ValidatorIndex]
|
|
|
|
let items = dres.get()
|
|
for item in items:
|
|
let vres = item.toValidatorIndex()
|
|
if vres.isErr():
|
|
case vres.error()
|
|
of ValidatorIndexError.TooHighValue:
|
|
return RestApiResponse.jsonError(Http400,
|
|
TooHighValidatorIndexValueError)
|
|
of ValidatorIndexError.UnsupportedValue:
|
|
return RestApiResponse.jsonError(Http500,
|
|
UnsupportedValidatorIndexValueError)
|
|
let index = vres.get()
|
|
if index in dupset:
|
|
return RestApiResponse.jsonError(Http400,
|
|
DuplicateValidatorIndexArrayError)
|
|
dupset.incl(index)
|
|
res.add(index)
|
|
if len(res) == 0:
|
|
return RestApiResponse.jsonError(Http400,
|
|
EmptyValidatorIndexArrayError)
|
|
res
|
|
response = indexList.mapIt(
|
|
RestLivenessItem(
|
|
index: it,
|
|
is_live: node.attestationPool[].validatorSeenAtEpoch(qepoch, it)
|
|
)
|
|
)
|
|
return RestApiResponse.jsonResponse(response)
|