256 lines
8.2 KiB
Nim
256 lines
8.2 KiB
Nim
import std/[tables, os, sets, sequtils, strutils]
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import chronos, presto, presto/client as presto_client, chronicles, confutils,
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json_serialization/std/[options, net],
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stew/[base10, results, byteutils]
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# Local modules
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import
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../spec/datatypes/[phase0, altair],
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../spec/[eth2_merkleization, helpers, signatures,
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validator],
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../spec/eth2_apis/[eth2_rest_serialization, rest_beacon_client],
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../validators/[keystore_management, validator_pool, slashing_protection],
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".."/[conf, beacon_clock, version, nimbus_binary_common]
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export os, sets, sequtils, sequtils, chronos, presto, chronicles, confutils,
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nimbus_binary_common, version, conf, options, tables, results, base10,
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byteutils, presto_client
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export eth2_rest_serialization, rest_beacon_client,
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phase0, altair, helpers, signatures, validator, eth2_merkleization,
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beacon_clock,
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keystore_management, slashing_protection, validator_pool
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const
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SYNC_TOLERANCE* = 4'u64
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SLOT_LOOKAHEAD* = 1.seconds
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HISTORICAL_DUTIES_EPOCHS* = 2'u64
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TIME_DELAY_FROM_SLOT* = 79.milliseconds
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SUBSCRIPTION_BUFFER_SLOTS* = 2'u64
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type
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ServiceState* {.pure.} = enum
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Initialized, Running, Error, Closing, Closed
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BlockServiceEventRef* = ref object of RootObj
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slot*: Slot
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proposers*: seq[ValidatorPubKey]
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ClientServiceRef* = ref object of RootObj
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state*: ServiceState
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lifeFut*: Future[void]
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client*: ValidatorClientRef
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DutiesServiceRef* = ref object of ClientServiceRef
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FallbackServiceRef* = ref object of ClientServiceRef
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ForkServiceRef* = ref object of ClientServiceRef
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AttestationServiceRef* = ref object of ClientServiceRef
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BlockServiceRef* = ref object of ClientServiceRef
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DutyAndProof* = object
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epoch*: Epoch
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dependentRoot*: Eth2Digest
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data*: RestAttesterDuty
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slotSig*: Option[ValidatorSig]
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ProposerTask* = object
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duty*: RestProposerDuty
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future*: Future[void]
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ProposedData* = object
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epoch*: Epoch
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dependentRoot*: Eth2Digest
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duties*: seq[ProposerTask]
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BeaconNodeServer* = object
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client*: RestClientRef
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endpoint*: string
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config*: Option[RestSpecVC]
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ident*: Option[string]
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genesis*: Option[RestGenesis]
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syncInfo*: Option[RestSyncInfo]
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status*: RestBeaconNodeStatus
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EpochDuties* = object
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duties*: Table[Epoch, DutyAndProof]
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RestBeaconNodeStatus* {.pure.} = enum
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Uninitalized, Offline, Incompatible, NotSynced, Online
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BeaconNodeServerRef* = ref BeaconNodeServer
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AttesterMap* = Table[ValidatorPubKey, EpochDuties]
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ProposerMap* = Table[Epoch, ProposedData]
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ValidatorClient* = object
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config*: ValidatorClientConf
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graffitiBytes*: GraffitiBytes
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beaconNodes*: seq[BeaconNodeServerRef]
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nodesAvailable*: AsyncEvent
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fallbackService*: FallbackServiceRef
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forkService*: ForkServiceRef
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dutiesService*: DutiesServiceRef
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attestationService*: AttestationServiceRef
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blockService*: BlockServiceRef
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runSlotLoop*: Future[void]
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beaconClock*: BeaconClock
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attachedValidators*: ValidatorPool
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forks*: seq[Fork]
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forksAvailable*: AsyncEvent
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attesters*: AttesterMap
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proposers*: ProposerMap
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beaconGenesis*: RestGenesis
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proposerTasks*: Table[Slot, seq[ProposerTask]]
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ValidatorClientRef* = ref ValidatorClient
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ValidatorClientError* = object of CatchableError
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ValidatorApiError* = object of ValidatorClientError
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const
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DefaultDutyAndProof* = DutyAndProof(epoch: Epoch(0xFFFF_FFFF_FFFF_FFFF'u64))
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SlotDuration* = int64(SECONDS_PER_SLOT).seconds
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OneThirdDuration* = int64(SECONDS_PER_SLOT).seconds div INTERVALS_PER_SLOT
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proc `$`*(bn: BeaconNodeServerRef): string =
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if bn.ident.isSome():
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bn.client.address.hostname & ":" &
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Base10.toString(bn.client.address.port) & " [" & bn.ident.get() & "]"
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else:
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bn.client.address.hostname & ":" &
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Base10.toString(bn.client.address.port)
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chronicles.formatIt BeaconNodeServerRef:
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$it
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chronicles.expandIt(RestAttesterDuty):
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pubkey = shortLog(it.pubkey)
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slot = it.slot
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validator_index = it.validator_index
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committee_index = it.committee_index
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committee_length = it.committee_length
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committees_at_slot = it.committees_at_slot
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validator_committee_index = it.validator_committee_index
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proc stop*(csr: ClientServiceRef) {.async.} =
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if csr.state == ServiceState.Running:
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csr.state = ServiceState.Closing
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if not(csr.lifeFut.finished()):
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await csr.lifeFut.cancelAndWait()
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csr.state = ServiceState.Closed
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proc isDefault*(dap: DutyAndProof): bool =
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dap.epoch == Epoch(0xFFFF_FFFF_FFFF_FFFF'u64)
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proc isDefault*(prd: ProposedData): bool =
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prd.epoch == Epoch(0xFFFF_FFFF_FFFF_FFFF'u64)
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proc init*(t: typedesc[DutyAndProof], epoch: Epoch, dependentRoot: Eth2Digest,
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duty: RestAttesterDuty,
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slotSig: Option[ValidatorSig]): DutyAndProof =
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DutyAndProof(epoch: epoch, dependentRoot: dependentRoot, data: duty,
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slotSig: slotSig)
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proc init*(t: typedesc[ProposedData], epoch: Epoch, dependentRoot: Eth2Digest,
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data: openarray[ProposerTask]): ProposedData =
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ProposedData(epoch: epoch, dependentRoot: dependentRoot, duties: @data)
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proc getCurrentSlot*(vc: ValidatorClientRef): Option[Slot] =
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let
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wallTime = vc.beaconClock.now()
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wallSlot = wallTime.toSlot()
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if not(wallSlot.afterGenesis):
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let checkGenesisTime = vc.beaconClock.fromNow(start_beacon_time(Slot(0)))
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warn "Jump in time detected, something wrong with wallclock",
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wall_time = wallTime, genesisIn = checkGenesisTime.offset
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none[Slot]()
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else:
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some(wallSlot.slot)
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proc getAttesterDutiesForSlot*(vc: ValidatorClientRef,
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slot: Slot): seq[DutyAndProof] =
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## Returns all `DutyAndPrrof` for the given `slot`.
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var res: seq[DutyAndProof]
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let epoch = slot.epoch()
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for key, item in vc.attesters.pairs():
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let duty = item.duties.getOrDefault(epoch, DefaultDutyAndProof)
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if not(duty.isDefault()):
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if duty.data.slot == slot:
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res.add(duty)
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res
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proc getDurationToNextAttestation*(vc: ValidatorClientRef,
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slot: Slot): string =
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var minSlot = FAR_FUTURE_SLOT
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let currentEpoch = slot.epoch()
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for epoch in [currentEpoch, currentEpoch + 1'u64]:
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for key, item in vc.attesters.pairs():
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let duty = item.duties.getOrDefault(epoch, DefaultDutyAndProof)
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if not(duty.isDefault()):
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let dutySlotTime = duty.data.slot
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if duty.data.slot < minSlot:
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minSlot = duty.data.slot
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if minSlot != FAR_FUTURE_SLOT:
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break
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if minSlot == FAR_FUTURE_SLOT:
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"<unknown>"
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else:
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$(minSlot.attestation_deadline() - slot.start_beacon_time())
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proc getDurationToNextBlock*(vc: ValidatorClientRef, slot: Slot): string =
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var minSlot = FAR_FUTURE_SLOT
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let currentEpoch = slot.epoch()
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for epoch in [currentEpoch, currentEpoch + 1'u64]:
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let data = vc.proposers.getOrDefault(epoch)
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if not(data.isDefault()):
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for item in data.duties:
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if item.duty.pubkey in vc.attachedValidators:
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if item.duty.slot < minSlot:
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minSlot = item.duty.slot
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if minSlot != FAR_FUTURE_SLOT:
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break
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if minSlot == FAR_FUTURE_SLOT:
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"<unknown>"
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else:
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$(minSlot.block_deadline() - slot.start_beacon_time())
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iterator attesterDutiesForEpoch*(vc: ValidatorClientRef,
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epoch: Epoch): DutyAndProof =
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for key, item in vc.attesters.pairs():
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let epochDuties = item.duties.getOrDefault(epoch)
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if not(isDefault(epochDuties)):
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yield epochDuties
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proc getDelay*(vc: ValidatorClientRef, deadline: BeaconTime): TimeDiff =
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vc.beaconClock.now() - deadline
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proc getValidator*(vc: ValidatorClientRef,
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key: ValidatorPubkey): Option[AttachedValidator] =
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let validator = vc.attachedValidators.getValidator(key)
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if isNil(validator):
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warn "Validator not in pool anymore", validator = shortLog(validator)
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none[AttachedValidator]()
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else:
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if validator.index.isNone():
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warn "Validator index is missing", validator = shortLog(validator)
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none[AttachedValidator]()
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else:
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some(validator)
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proc forkAtEpoch*(vc: ValidatorClientRef, epoch: Epoch): Fork =
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# If schedule is present, it MUST not be empty.
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doAssert(len(vc.forks) > 0)
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var res: Fork
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for item in vc.forks:
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if item.epoch <= epoch:
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res = item
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else:
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break
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res
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