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nimbus-eth2/beacon_chain/conf.nim

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{.push raises: [Defect].}
import
strutils, os, options, unicode,
chronicles, chronicles/options as chroniclesOptions,
confutils, confutils/defs, confutils/std/net, stew/shims/net as stewNet,
stew/io2, unicodedb/properties, normalize,
eth/common/eth_types as commonEthTypes,
json_serialization, web3/[ethtypes, confutils_defs],
spec/[crypto, keystore, digest, datatypes, network],
network_metadata, filepath
export
defaultEth2TcpPort, enabledLogLevel, ValidIpAddress,
defs, parseCmdArg, completeCmdArg, network_metadata
type
ValidatorKeyPath* = TypedInputFile[ValidatorPrivKey, Txt, "privkey"]
BNStartUpCmd* = enum
noCommand
createTestnet
deposits
wallets
WalletsCmd* {.pure.} = enum
create = "Creates a new EIP-2386 wallet"
restore = "Restores a wallet from cold storage"
list = "Lists details about all wallets"
DepositsCmd* {.pure.} = enum
create = "Creates validator keystores and deposits"
`import` = "Imports password-protected keystores interactively"
status = "Displays status information about all deposits"
VCStartUpCmd* = enum
VCNoCommand
BeaconNodeConf* = object
logLevel* {.
defaultValue: "INFO"
desc: "Sets the log level for process and topics (e.g. \"DEBUG; TRACE:discv5,libp2p; REQUIRED:none; DISABLED:none\")"
name: "log-level" }: string
logFile* {.
desc: "Specifies a path for the written Json log file"
name: "log-file" }: Option[OutFile]
eth2Network* {.
desc: "The Eth2 network to join"
name: "network" }: Option[string]
dataDir* {.
defaultValue: config.defaultDataDir()
desc: "The directory where nimbus will store all blockchain data"
abbr: "d"
name: "data-dir" }: OutDir
validatorsDirFlag* {.
desc: "A directory containing validator keystores"
name: "validators-dir" }: Option[InputDir]
secretsDirFlag* {.
desc: "A directory containing validator keystore passwords"
name: "secrets-dir" }: Option[InputDir]
walletsDirFlag* {.
desc: "A directory containing wallet files"
name: "wallets-dir" }: Option[InputDir]
web3Url* {.
defaultValue: ""
desc: "URL of the Web3 server to observe Eth1"
name: "web3-url" }: string
depositContractAddress* {.
desc: "Address of the deposit contract"
name: "deposit-contract" }: Option[Eth1Address]
depositContractDeployedAt* {.
desc: "The Eth1 block number or hash where the deposit contract has been deployed"
name: "deposit-contract-block" }: Option[BlockHashOrNumber]
nonInteractive* {.
desc: "Do not display interative prompts. Quit on missing configuration"
name: "non-interactive" }: bool
netKeyFile* {.
defaultValue: "random",
desc: "Source of network (secp256k1) private key file " &
"(random|<path>) (default: random)"
name: "netkey-file" }: string
netKeyInsecurePassword* {.
defaultValue: false,
desc: "Use pre-generated INSECURE password for network private key " &
"file (default: false)"
name: "insecure-netkey-password" }: bool
case cmd* {.
command
defaultValue: noCommand }: BNStartUpCmd
of noCommand:
bootstrapNodes* {.
desc: "Specifies one or more bootstrap nodes to use when connecting to the network"
abbr: "b"
name: "bootstrap-node" }: seq[string]
bootstrapNodesFile* {.
defaultValue: ""
desc: "Specifies a line-delimited file of bootstrap Ethereum network addresses"
name: "bootstrap-file" }: InputFile
listenAddress* {.
defaultValue: defaultListenAddress(config)
desc: "Listening address for the Ethereum LibP2P and Discovery v5 traffic"
name: "listen-address" }: ValidIpAddress
tcpPort* {.
defaultValue: defaultEth2TcpPort
desc: "Listening TCP port for Ethereum LibP2P traffic"
name: "tcp-port" }: Port
udpPort* {.
defaultValue: defaultEth2TcpPort
desc: "Listening UDP port for node discovery"
name: "udp-port" }: Port
maxPeers* {.
defaultValue: 79 # The Wall gets released
desc: "The maximum number of peers to connect to"
name: "max-peers" }: int
nat* {.
desc: "Specify method to use for determining public address. " &
"Must be one of: any, none, upnp, pmp, extip:<IP>"
defaultValue: "any" }: string
weakSubjectivityCheckpoint* {.
desc: "Weak subjectivity checkpoint in the format block_root:epoch_number"
name: "weak-subjectivity-checkpoint" }: Option[Checkpoint]
finalizedCheckpointState* {.
desc: "SSZ file specifying a recent finalized state"
name: "finalized-checkpoint-state" }: Option[InputFile]
finalizedCheckpointBlock* {.
desc: "SSZ file specifying a recent finalized block"
name: "finalized-checkpoint-block" }: Option[InputFile]
runtimePreset* {.hidden.}: RuntimePreset
nodeName* {.
defaultValue: ""
desc: "A name for this node that will appear in the logs. " &
"If you set this to 'auto', a persistent automatically generated ID will be selected for each --data-dir folder"
name: "node-name" }: string
graffiti* {.
desc: "The graffiti value that will appear in proposed blocks. " &
"You can use a 0x-prefixed hex encoded string to specify raw bytes"
name: "graffiti" }: Option[GraffitiBytes]
verifyFinalization* {.
defaultValue: false
desc: "Specify whether to verify finalization occurs on schedule, for testing"
name: "verify-finalization" }: bool
stopAtEpoch* {.
defaultValue: 0
desc: "A positive epoch selects the epoch at which to stop"
name: "stop-at-epoch" }: uint64
metricsEnabled* {.
defaultValue: false
desc: "Enable the metrics server"
name: "metrics" }: bool
metricsAddress* {.
defaultValue: defaultAdminListenAddress(config)
desc: "Listening address of the metrics server"
name: "metrics-address" }: ValidIpAddress
metricsPort* {.
defaultValue: 8008
desc: "Listening HTTP port of the metrics server"
name: "metrics-port" }: Port
statusBarEnabled* {.
defaultValue: true
desc: "Display a status bar at the bottom of the terminal screen"
name: "status-bar" }: bool
statusBarContents* {.
defaultValue: "peers: $connected_peers;" &
"finalized: $finalized_root:$finalized_epoch;" &
"head: $head_root:$head_epoch:$head_epoch_slot;" &
"time: $epoch:$epoch_slot ($slot);" &
"sync: $sync_status|"
desc: "Textual template for the contents of the status bar"
name: "status-bar-contents" }: string
rpcEnabled* {.
defaultValue: false
desc: "Enable the JSON-RPC server"
name: "rpc" }: bool
rpcPort* {.
defaultValue: defaultEth2RpcPort
desc: "HTTP port for the JSON-RPC service"
name: "rpc-port" }: Port
rpcAddress* {.
defaultValue: defaultAdminListenAddress(config)
desc: "Listening address of the RPC server"
name: "rpc-address" }: ValidIpAddress
inProcessValidators* {.
defaultValue: true # the use of the nimbus_signing_process binary by default will be delayed until async I/O over stdin/stdout is developed for the child process.
desc: "Disable the push model (the beacon node tells a signing process with the private keys of the validators what to sign and when) and load the validators in the beacon node itself"
name: "in-process-validators" }: bool
discv5Enabled* {.
defaultValue: true
desc: "Enable Discovery v5"
name: "discv5" }: bool
dumpEnabled* {.
defaultValue: false
desc: "Write SSZ dumps of blocks, attestations and states to data dir"
name: "dump" }: bool
of createTestnet:
testnetDepositsFile* {.
desc: "A LaunchPad deposits file for the genesis state validators"
name: "deposits-file" }: InputFile
totalValidators* {.
desc: "The number of validator deposits in the newly created chain"
name: "total-validators" }: uint64
firstValidator* {.
defaultValue: 0
desc: "Index of first validator to add to validator list"
name: "first-validator" }: uint64
lastUserValidator* {.
defaultValue: config.totalValidators - 1,
desc: "The last validator index that will be free for taking from a testnet participant"
name: "last-user-validator" }: uint64
bootstrapAddress* {.
defaultValue: init(ValidIpAddress, "127.0.0.1")
desc: "The public IP address that will be advertised as a bootstrap node for the testnet"
name: "bootstrap-address" }: ValidIpAddress
bootstrapPort* {.
defaultValue: defaultEth2TcpPort
desc: "The TCP/UDP port that will be used by the bootstrap node"
name: "bootstrap-port" }: Port
genesisOffset* {.
defaultValue: 5
desc: "Seconds from now to add to genesis time"
name: "genesis-offset" }: int
outputGenesis* {.
desc: "Output file where to write the initial state snapshot"
name: "output-genesis" }: OutFile
withGenesisRoot* {.
defaultValue: false
desc: "Include a genesis root in 'network.json'"
name: "with-genesis-root" }: bool
outputBootstrapFile* {.
desc: "Output file with list of bootstrap nodes for the network"
name: "output-bootstrap-file" }: OutFile
of wallets:
case walletsCmd* {.command.}: WalletsCmd
of WalletsCmd.create:
nextAccount* {.
desc: "Initial value for the 'nextaccount' property of the wallet"
name: "next-account" }: Option[Natural]
createdWalletNameFlag* {.
desc: "An easy-to-remember name for the wallet of your choice"
name: "name"}: Option[WalletName]
createdWalletFileFlag* {.
desc: "Output wallet file"
name: "out" }: Option[OutFile]
of WalletsCmd.restore:
restoredWalletNameFlag* {.
desc: "An easy-to-remember name for the wallet of your choice"
name: "name"}: Option[WalletName]
restoredWalletFileFlag* {.
desc: "Output wallet file"
name: "out" }: Option[OutFile]
restoredDepositsCount* {.
desc: "Expected number of deposits to recover. If not specified, " &
"Nimbus will try to guess the number by inspecting the latest " &
"beacon state"
name: "deposits".}: Option[Natural]
of WalletsCmd.list:
discard
of deposits:
case depositsCmd* {.command.}: DepositsCmd
of DepositsCmd.create:
totalDeposits* {.
defaultValue: 1
desc: "Number of deposits to generate"
name: "count" }: int
existingWalletId* {.
desc: "An existing wallet ID. If not specified, a new wallet will be created"
name: "wallet" }: Option[WalletName]
outValidatorsDir* {.
defaultValue: "validators"
desc: "Output folder for validator keystores"
name: "out-validators-dir" }: string
outSecretsDir* {.
defaultValue: "secrets"
desc: "Output folder for randomly generated keystore passphrases"
name: "out-secrets-dir" }: string
outDepositsFile* {.
desc: "The name of generated deposits file"
name: "out-deposits-file" }: Option[OutFile]
newWalletNameFlag* {.
desc: "An easy-to-remember name for the wallet of your choice"
name: "new-wallet-name" }: Option[WalletName]
newWalletFileFlag* {.
desc: "Output wallet file"
name: "new-wallet-file" }: Option[OutFile]
of DepositsCmd.`import`:
importedDepositsDir* {.
argument
desc: "A directory with keystores to import" }: InputDir
of DepositsCmd.status:
discard
ValidatorClientConf* = object
logLevel* {.
defaultValue: "INFO"
desc: "Sets the log level"
name: "log-level" }: string
logFile* {.
desc: "Specifies a path for the written Json log file"
name: "log-file" }: Option[OutFile]
dataDir* {.
defaultValue: config.defaultDataDir()
desc: "The directory where nimbus will store all blockchain data"
abbr: "d"
name: "data-dir" }: OutDir
nonInteractive* {.
desc: "Do not display interative prompts. Quit on missing configuration"
name: "non-interactive" }: bool
validatorsDirFlag* {.
desc: "A directory containing validator keystores"
name: "validators-dir" }: Option[InputDir]
secretsDirFlag* {.
desc: "A directory containing validator keystore passwords"
name: "secrets-dir" }: Option[InputDir]
case cmd* {.
command
defaultValue: VCNoCommand }: VCStartUpCmd
of VCNoCommand:
graffiti* {.
desc: "The graffiti value that will appear in proposed blocks. " &
"You can use a 0x-prefixed hex encoded string to specify raw bytes"
name: "graffiti" }: Option[GraffitiBytes]
stopAtEpoch* {.
defaultValue: 0
desc: "A positive epoch selects the epoch at which to stop"
name: "stop-at-epoch" }: uint64
rpcPort* {.
defaultValue: defaultEth2RpcPort
desc: "HTTP port of the server to connect to for RPC - for the validator duties in the pull model"
name: "rpc-port" }: Port
rpcAddress* {.
defaultValue: defaultAdminListenAddress(config)
desc: "Address of the server to connect to for RPC - for the validator duties in the pull model"
name: "rpc-address" }: ValidIpAddress
retryDelay* {.
defaultValue: 10
desc: "Delay in seconds between retries after unsuccessful attempts to connect to a beacon node"
name: "retry-delay" }: int
proc defaultDataDir*(conf: BeaconNodeConf|ValidatorClientConf): string =
let dataDir = when defined(windows):
"AppData" / "Roaming" / "Nimbus"
elif defined(macosx):
"Library" / "Application Support" / "Nimbus"
else:
".cache" / "nimbus"
getHomeDir() / dataDir / "BeaconNode"
func dumpDir*(conf: BeaconNodeConf|ValidatorClientConf): string =
conf.dataDir / "dump"
func dumpDirInvalid*(conf: BeaconNodeConf|ValidatorClientConf): string =
conf.dumpDir / "invalid" # things that failed validation
func dumpDirIncoming*(conf: BeaconNodeConf|ValidatorClientConf): string =
conf.dumpDir / "incoming" # things that couldn't be validated (missingparent etc)
func dumpDirOutgoing*(conf: BeaconNodeConf|ValidatorClientConf): string =
conf.dumpDir / "outgoing" # things we produced
proc createDumpDirs*(conf: BeaconNodeConf) =
if conf.dumpEnabled:
let resInv = secureCreatePath(conf.dumpDirInvalid)
if resInv.isErr():
warn "Could not create dump directory", path = conf.dumpDirInvalid
let resInc = secureCreatePath(conf.dumpDirIncoming)
if resInc.isErr():
warn "Could not create dump directory", path = conf.dumpDirIncoming
let resOut = secureCreatePath(conf.dumpDirOutgoing)
if resOut.isErr():
warn "Could not create dump directory", path = conf.dumpDirOutgoing
func parseCmdArg*(T: type GraffitiBytes, input: TaintedString): T
{.raises: [ValueError, Defect].} =
GraffitiBytes.init(string input)
func completeCmdArg*(T: type GraffitiBytes, input: TaintedString): seq[string] =
return @[]
func parseCmdArg*(T: type BlockHashOrNumber, input: TaintedString): T
{.raises: [ValueError, Defect].} =
init(BlockHashOrNumber, string input)
func completeCmdArg*(T: type BlockHashOrNumber, input: TaintedString): seq[string] =
return @[]
func parseCmdArg*(T: type Checkpoint, input: TaintedString): T
{.raises: [ValueError, Defect].} =
let sepIdx = find(input.string, ':')
if sepIdx == -1:
raise newException(ValueError,
"The weak subjectivity checkpoint must be provided in the `block_root:epoch_number` format")
T(root: Eth2Digest.fromHex(input[0 ..< sepIdx]),
epoch: parseBiggestUInt(input[sepIdx .. ^1]).Epoch)
func completeCmdArg*(T: type Checkpoint, input: TaintedString): seq[string] =
return @[]
proc isPrintable(rune: Rune): bool =
# This can be eventually replaced by the `unicodeplus` package, but a single
# proc does not justify the extra dependencies at the moment:
# https://github.com/nitely/nim-unicodeplus
# https://github.com/nitely/nim-segmentation
rune == Rune(0x20) or unicodeCategory(rune) notin ctgC+ctgZ
func parseCmdArg*(T: type WalletName, input: TaintedString): T
{.raises: [ValueError, Defect].} =
if input.len == 0:
raise newException(ValueError, "The wallet name should not be empty")
if input[0] == '_':
raise newException(ValueError, "The wallet name should not start with an underscore")
for rune in runes(input.string):
if not rune.isPrintable:
raise newException(ValueError, "The wallet name should consist only of printable characters")
# From the Unicode Normalization FAQ (https://unicode.org/faq/normalization.html):
# NFKC is the preferred form for identifiers, especially where there are security concerns
# (see UTR #36 http://www.unicode.org/reports/tr36/)
return T(toNFKC(input))
func completeCmdArg*(T: type WalletName, input: TaintedString): seq[string] =
return @[]
func validatorsDir*(conf: BeaconNodeConf|ValidatorClientConf): string =
string conf.validatorsDirFlag.get(InputDir(conf.dataDir / "validators"))
func secretsDir*(conf: BeaconNodeConf|ValidatorClientConf): string =
string conf.secretsDirFlag.get(InputDir(conf.dataDir / "secrets"))
func walletsDir*(conf: BeaconNodeConf): string =
if conf.walletsDirFlag.isSome:
conf.walletsDirFlag.get.string
else:
conf.dataDir / "wallets"
func outWalletName*(conf: BeaconNodeConf): Option[WalletName] =
proc fail {.noReturn.} =
raiseAssert "outWalletName should be used only in the right context"
case conf.cmd
of wallets:
case conf.walletsCmd
of WalletsCmd.create: conf.createdWalletNameFlag
of WalletsCmd.restore: conf.restoredWalletNameFlag
of WalletsCmd.list: fail()
of deposits:
case conf.depositsCmd
of DepositsCmd.create: conf.newWalletNameFlag
else: fail()
else:
fail()
func outWalletFile*(conf: BeaconNodeConf): Option[OutFile] =
proc fail {.noReturn.} =
raiseAssert "outWalletName should be used only in the right context"
case conf.cmd
of wallets:
case conf.walletsCmd
of WalletsCmd.create: conf.createdWalletFileFlag
of WalletsCmd.restore: conf.restoredWalletFileFlag
of WalletsCmd.list: fail()
of deposits:
case conf.depositsCmd
of DepositsCmd.create: conf.newWalletFileFlag
else: fail()
else:
fail()
func databaseDir*(conf: BeaconNodeConf|ValidatorClientConf): string =
conf.dataDir / "db"
func defaultListenAddress*(conf: BeaconNodeConf|ValidatorClientConf): ValidIpAddress =
# TODO: How should we select between IPv4 and IPv6
# Maybe there should be a config option for this.
(static ValidIpAddress.init("0.0.0.0"))
func defaultAdminListenAddress*(conf: BeaconNodeConf|ValidatorClientConf): ValidIpAddress =
(static ValidIpAddress.init("127.0.0.1"))
template writeValue*(writer: var JsonWriter,
value: TypedInputFile|InputFile|InputDir|OutPath|OutDir|OutFile) =
writer.writeValue(string value)
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