nimbus-eth1/fluffy/fluffy.nim

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# Nimbus
# Copyright (c) 2021-2023 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.push raises: [].}
import
std/os,
confutils, confutils/std/net, chronicles, chronicles/topics_registry,
chronos, metrics, metrics/chronos_httpserver, json_rpc/clients/httpclient,
json_rpc/rpcproxy, stew/[byteutils, io2, results],
eth/keys, eth/net/nat,
eth/p2p/discoveryv5/protocol as discv5_protocol,
beacon_chain/beacon_clock,
beacon_chain/spec/forks,
beacon_chain/spec/datatypes/altair,
beacon_chain/gossip_processing/light_client_processor,
./conf, ./network_metadata, ./common/common_utils,
./rpc/[rpc_web3_api, rpc_eth_api, rpc_discovery_api, rpc_portal_api,
rpc_portal_debug_api],
./network/state/[state_network, state_content],
./network/history/[history_network, history_content],
./network/beacon_light_client/[
beacon_light_client_init_loader,
beacon_light_client,
],
./network/wire/[portal_stream, portal_protocol_config],
./eth_data/history_data_ssz_e2s,
./content_db,
./version, ./logging
chronicles.formatIt(IoErrorCode): $it
proc initBeaconLightClient(
network: LightClientNetwork, networkData: NetworkInitData,
trustedBlockRoot: Option[Eth2Digest]): LightClient =
let
getBeaconTime = networkData.clock.getBeaconTimeFn()
refDigests = newClone networkData.forks
lc = LightClient.new(
network,
network.portalProtocol.baseProtocol.rng,
networkData.metadata.cfg,
refDigests,
getBeaconTime,
networkData.genesis_validators_root,
LightClientFinalizationMode.Optimistic
)
# TODO: For now just log new headers. Ultimately we should also use callbacks
# for each lc object to save them to db and offer them to the network.
# TODO-2: The above statement sounds that this work should really be done at a
# later lower, and these callbacks are rather for use for the "application".
proc onFinalizedHeader(
lightClient: LightClient, finalizedHeader: ForkedLightClientHeader) =
withForkyHeader(finalizedHeader):
when lcDataFork > LightClientDataFork.None:
info "New LC finalized header",
finalized_header = shortLog(forkyHeader)
proc onOptimisticHeader(
lightClient: LightClient, optimisticHeader: ForkedLightClientHeader) =
withForkyHeader(optimisticHeader):
when lcDataFork > LightClientDataFork.None:
info "New LC optimistic header",
optimistic_header = shortLog(forkyHeader)
lc.onFinalizedHeader = onFinalizedHeader
lc.onOptimisticHeader = onOptimisticHeader
lc.trustedBlockRoot = trustedBlockRoot
# proc onSecond(time: Moment) =
# let wallSlot = getBeaconTime().slotOrZero()
# # TODO this is a place to enable/disable gossip based on the current status
# # of light client
# # lc.updateGossipStatus(wallSlot + 1)
# proc runOnSecondLoop() {.async.} =
# let sleepTime = chronos.seconds(1)
# while true:
# let start = chronos.now(chronos.Moment)
# await chronos.sleepAsync(sleepTime)
# let afterSleep = chronos.now(chronos.Moment)
# let sleepTime = afterSleep - start
# onSecond(start)
# let finished = chronos.now(chronos.Moment)
# let processingTime = finished - afterSleep
# trace "onSecond task completed", sleepTime, processingTime
# onSecond(Moment.now())
# asyncSpawn runOnSecondLoop()
lc
proc run(config: PortalConf) {.raises: [CatchableError].} =
setupLogging(config.logLevel, config.logStdout)
notice "Launching Fluffy",
version = fullVersionStr, cmdParams = commandLineParams()
# Make sure dataDir exists
let pathExists = createPath(config.dataDir.string)
if pathExists.isErr():
fatal "Failed to create data directory", dataDir = config.dataDir,
error = pathExists.error
quit 1
let
rng = newRng()
bindIp = config.listenAddress
udpPort = Port(config.udpPort)
# TODO: allow for no TCP port mapping!
(extIp, _, extUdpPort) =
try: setupAddress(config.nat,
config.listenAddress, udpPort, udpPort, "dcli")
except CatchableError as exc: raise exc
# TODO: Ideally we don't have the Exception here
except Exception as exc: raiseAssert exc.msg
netkey =
if config.networkKey.isSome():
config.networkKey.get()
else:
getPersistentNetKey(rng[], config.networkKeyFile, config.dataDir.string)
var bootstrapRecords: seq[Record]
loadBootstrapFile(string config.bootstrapNodesFile, bootstrapRecords)
bootstrapRecords.add(config.bootstrapNodes)
case config.portalNetwork
of testnet0:
for enrURI in testnet0BootstrapNodes:
var record: Record
if fromURI(record, enrURI):
bootstrapRecords.add(record)
else:
discard
let
discoveryConfig = DiscoveryConfig.init(
config.tableIpLimit, config.bucketIpLimit, config.bitsPerHop)
d = newProtocol(
netkey,
extIp, none(Port), extUdpPort,
# Note: The addition of default clientInfo to the ENR is a temporary
# measure to easily identify & debug the clients used in the testnet.
# Might make this into a, default off, cli option.
localEnrFields = {"c": enrClientInfoShort},
bootstrapRecords = bootstrapRecords,
bindIp = bindIp, bindPort = udpPort,
enrAutoUpdate = config.enrAutoUpdate,
config = discoveryConfig,
rng = rng)
d.open()
# Store the database at contentdb prefixed with the first 8 chars of node id.
# This is done because the content in the db is dependant on the `NodeId` and
# the selected `Radius`.
let
db = ContentDB.new(config.dataDir / "db" / "contentdb_" &
d.localNode.id.toBytesBE().toOpenArray(0, 8).toHex(), maxSize = config.storageSize)
portalConfig = PortalProtocolConfig.init(
config.tableIpLimit,
config.bucketIpLimit,
config.bitsPerHop,
config.radiusConfig,
config.disablePoke
)
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streamManager = StreamManager.new(d)
stateNetwork = Opt.some(StateNetwork.new(
d, db, streamManager,
bootstrapRecords = bootstrapRecords,
portalConfig = portalConfig))
accumulator =
# Building an accumulator from header epoch files takes > 2m30s and is
# thus not really a viable option at start-up.
# Options are:
# - Start with baked-in accumulator
# - Start with file containing SSZ encoded accumulator
if config.accumulatorFile.isSome():
readAccumulator(string config.accumulatorFile.get()).expect(
"Need a file with a valid SSZ encoded accumulator")
else:
# Get it from binary file containing SSZ encoded accumulator
try:
SSZ.decode(finishedAccumulator, FinishedAccumulator)
except SszError as err:
raiseAssert "Invalid baked-in accumulator: " & err.msg
historyNetwork = Opt.some(HistoryNetwork.new(
d, db, streamManager, accumulator,
bootstrapRecords = bootstrapRecords,
portalConfig = portalConfig))
beaconLightClient =
# TODO: Currently disabled by default as it is not sufficiently polished.
# Eventually this should be always-on functionality.
if config.trustedBlockRoot.isSome():
let
# Fluffy works only over mainnet data currently
networkData = loadNetworkData("mainnet")
beaconLightClientDb = LightClientDb.new(
config.dataDir / "lightClientDb")
lightClientNetwork = LightClientNetwork.new(
d,
beaconLightClientDb,
streamManager,
networkData.forks,
bootstrapRecords = bootstrapRecords)
Opt.some(initBeaconLightClient(
lightClientNetwork, networkData, config.trustedBlockRoot))
else:
Opt.none(LightClient)
# TODO: If no new network key is generated then we should first check if an
# enr file exists, and in the case it does read out the seqNum from it and
# reuse that.
let enrFile = config.dataDir / "fluffy_node.enr"
if io2.writeFile(enrFile, d.localNode.record.toURI()).isErr:
fatal "Failed to write the enr file", file = enrFile
quit 1
## Start metrics HTTP server
if config.metricsEnabled:
let
address = config.metricsAddress
port = config.metricsPort
info "Starting metrics HTTP server",
url = "http://" & $address & ":" & $port & "/metrics"
try:
chronos_httpserver.startMetricsHttpServer($address, port)
except CatchableError as exc: raise exc
# TODO: Ideally we don't have the Exception here
except Exception as exc: raiseAssert exc.msg
## Starting the different networks.
d.start()
if stateNetwork.isSome():
stateNetwork.get().start()
if historyNetwork.isSome():
historyNetwork.get().start()
if beaconLightClient.isSome():
let lc = beaconLightClient.get()
lc.network.start()
lc.start()
## Starting the JSON-RPC APIs
if config.rpcEnabled:
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let ta = initTAddress(config.rpcAddress, config.rpcPort)
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var rpcHttpServerWithProxy = RpcProxy.new([ta], config.proxyUri)
rpcHttpServerWithProxy.installDiscoveryApiHandlers(d)
rpcHttpServerWithProxy.installWeb3ApiHandlers()
if stateNetwork.isSome():
rpcHttpServerWithProxy.installPortalApiHandlers(
stateNetwork.get().portalProtocol, "state")
if historyNetwork.isSome():
rpcHttpServerWithProxy.installEthApiHandlers(historyNetwork.get())
rpcHttpServerWithProxy.installPortalApiHandlers(
historyNetwork.get().portalProtocol, "history")
rpcHttpServerWithProxy.installPortalDebugApiHandlers(
historyNetwork.get().portalProtocol, "history")
if beaconLightClient.isSome():
rpcHttpServerWithProxy.installPortalApiHandlers(
beaconLightClient.get().network.portalProtocol, "beaconLightClient")
# TODO: Test proxy with remote node over HTTPS
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waitFor rpcHttpServerWithProxy.start()
runForever()
when isMainModule:
{.pop.}
let config = PortalConf.load(
version = clientName & " " & fullVersionStr & "\p\p" & nimBanner,
copyrightBanner = copyrightBanner
)
{.push raises: [].}
case config.cmd
of PortalCmd.noCommand:
run(config)