nimbus-eth1/nimbus/nimbus.nim

375 lines
12 KiB
Nim

# Nimbus
# Copyright (c) 2018 Status Research & Development GmbH
# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
# * MIT license ([LICENSE-MIT](LICENSE-MIT))
# at your option.
# This file may not be copied, modified, or distributed except according to
# those terms.
import
../nimbus/vm_compile_info
import
std/[os, strutils, net, options],
chronicles,
chronos,
eth/[keys, net/nat, trie/db],
eth/common as eth_common,
eth/p2p as eth_p2p,
eth/p2p/[peer_pool, rlpx_protocols/les_protocol],
json_rpc/rpcserver,
metrics,
metrics/[chronos_httpserver, chronicles_support],
stew/shims/net as stewNet,
websock/types as ws,
"."/[conf_utils, config, constants, context, genesis, sealer, utils, version],
./db/[storage_types, db_chain, select_backend],
./graphql/ethapi,
./p2p/[chain, blockchain_sync],
./p2p/clique/[clique_desc, clique_sealer],
./rpc/[common, debug, engine_api, jwt_auth, p2p],
./sync/protocol_ethxx,
./utils/tx_pool
when defined(evmc_enabled):
import transaction/evmc_dynamic_loader
## TODO:
## * No IPv6 support
## * No multiple bind addresses support
## * No database support
type
NimbusState = enum
Starting, Running, Stopping
NimbusNode = ref object
rpcServer: RpcHttpServer
engineApiServer: RpcHttpServer
engineApiWsServer: RpcWebSocketServer
ethNode: EthereumNode
state: NimbusState
graphqlServer: GraphqlHttpServerRef
wsRpcServer: RpcWebSocketServer
sealingEngine: SealingEngineRef
ctx: EthContext
chainRef: Chain
txPool: TxPoolRef
proc importBlocks(conf: NimbusConf, chainDB: BaseChainDB) =
if string(conf.blocksFile).len > 0:
# success or not, we quit after importing blocks
if not importRlpBlock(string conf.blocksFile, chainDB):
quit(QuitFailure)
else:
quit(QuitSuccess)
proc manageAccounts(nimbus: NimbusNode, conf: NimbusConf) =
if string(conf.keyStore).len > 0:
let res = nimbus.ctx.am.loadKeystores(string conf.keyStore)
if res.isErr:
echo res.error()
quit(QuitFailure)
if string(conf.importKey).len > 0:
let res = nimbus.ctx.am.importPrivateKey(string conf.importKey)
if res.isErr:
echo res.error()
quit(QuitFailure)
proc setupP2P(nimbus: NimbusNode, conf: NimbusConf,
chainDB: BaseChainDB, protocols: set[ProtocolFlag]) =
## Creating P2P Server
let kpres = nimbus.ctx.hexToKeyPair(conf.nodeKeyHex)
if kpres.isErr:
echo kpres.error()
quit(QuitFailure)
let keypair = kpres.get()
var address = Address(
ip: conf.listenAddress,
tcpPort: conf.tcpPort,
udpPort: conf.udpPort
)
if conf.nat.hasExtIp:
# any required port redirection is assumed to be done by hand
address.ip = conf.nat.extIp
else:
# automated NAT traversal
let extIP = getExternalIP(conf.nat.nat)
# This external IP only appears in the logs, so don't worry about dynamic
# IPs. Don't remove it either, because the above call does initialisation
# and discovery for NAT-related objects.
if extIP.isSome:
address.ip = extIP.get()
let extPorts = redirectPorts(tcpPort = address.tcpPort,
udpPort = address.udpPort,
description = NimbusName & " " & NimbusVersion)
if extPorts.isSome:
(address.tcpPort, address.udpPort) = extPorts.get()
let bootstrapNodes = conf.getBootNodes()
nimbus.ethNode = newEthereumNode(
keypair, address, conf.networkId, nil, conf.agentString,
addAllCapabilities = false, minPeers = conf.maxPeers,
bootstrapNodes = bootstrapNodes,
bindUdpPort = conf.udpPort, bindTcpPort = conf.tcpPort,
bindIp = conf.listenAddress)
# Add protocol capabilities based on protocol flags
if ProtocolFlag.Eth in protocols:
nimbus.ethNode.addCapability eth
if ProtocolFlag.Les in protocols:
nimbus.ethNode.addCapability les
# chainRef: some name to avoid module-name/filed/function misunderstandings
nimbus.chainRef = newChain(chainDB)
nimbus.ethNode.chain = nimbus.chainRef
if conf.verifyFrom.isSome:
let verifyFrom = conf.verifyFrom.get()
nimbus.chainRef.extraValidation = 0 < verifyFrom
nimbus.chainRef.verifyFrom = verifyFrom
# Connect directly to the static nodes
let staticPeers = conf.getStaticPeers()
for enode in staticPeers:
asyncCheck nimbus.ethNode.peerPool.connectToNode(newNode(enode))
# Start Eth node
if conf.maxPeers > 0:
waitFor nimbus.ethNode.connectToNetwork(
enableDiscovery = conf.discovery != DiscoveryType.None)
proc localServices(nimbus: NimbusNode, conf: NimbusConf,
chainDB: BaseChainDB, protocols: set[ProtocolFlag]) =
# app wide TxPool singleton
# TODO: disable some of txPool internal mechanism if
# the engineSigner is zero.
nimbus.txPool = TxPoolRef.new(chainDB, conf.engineSigner)
# metrics logging
if conf.logMetricsEnabled:
# https://github.com/nim-lang/Nim/issues/17369
var logMetrics: proc(udata: pointer) {.gcsafe, raises: [Defect].}
logMetrics = proc(udata: pointer) =
{.gcsafe.}:
let registry = defaultRegistry
info "metrics", registry
discard setTimer(Moment.fromNow(conf.logMetricsInterval.seconds), logMetrics)
discard setTimer(Moment.fromNow(conf.logMetricsInterval.seconds), logMetrics)
# Creating RPC Server
if conf.rpcEnabled:
nimbus.rpcServer = newRpcHttpServer([initTAddress(conf.rpcAddress, conf.rpcPort)])
setupCommonRpc(nimbus.ethNode, conf, nimbus.rpcServer)
# Enable RPC APIs based on RPC flags and protocol flags
let rpcFlags = conf.getRpcFlags()
if (RpcFlag.Eth in rpcFlags and ProtocolFlag.Eth in protocols) or
(conf.engineApiPort == conf.rpcPort):
setupEthRpc(nimbus.ethNode, nimbus.ctx, chainDB, nimbus.txPool, nimbus.rpcServer)
if RpcFlag.Debug in rpcFlags:
setupDebugRpc(chainDB, nimbus.rpcServer)
nimbus.rpcServer.rpc("admin_quit") do() -> string:
{.gcsafe.}:
nimbus.state = Stopping
result = "EXITING"
nimbus.rpcServer.start()
# Provide JWT authentication handler for websockets
let jwtHook = block:
# Create or load shared secret
let rc = nimbus.ctx.rng.jwtSharedSecret(conf)
if rc.isErr:
error "Failed create or load shared secret",
msg = $(rc.unsafeError) # avoid side effects
quit(QuitFailure)
# Authentcation handler constructor
some(rc.value.jwtAuthHandler)
# Creating Websocket RPC Server
if conf.wsEnabled:
# Construct server object
nimbus.wsRpcServer = newRpcWebSocketServer(
initTAddress(conf.wsAddress, conf.wsPort),
authHandler = jwtHook)
setupCommonRpc(nimbus.ethNode, conf, nimbus.wsRpcServer)
# Enable Websocket RPC APIs based on RPC flags and protocol flags
let wsFlags = conf.getWsFlags()
if (RpcFlag.Eth in wsFlags and ProtocolFlag.Eth in protocols) or
(conf.engineApiWsPort == conf.wsPort):
setupEthRpc(nimbus.ethNode, nimbus.ctx, chainDB, nimbus.txPool, nimbus.wsRpcServer)
if RpcFlag.Debug in wsFlags:
setupDebugRpc(chainDB, nimbus.wsRpcServer)
nimbus.wsRpcServer.start()
if conf.graphqlEnabled:
nimbus.graphqlServer = setupGraphqlHttpServer(conf, chainDB, nimbus.ethNode, nimbus.txPool)
nimbus.graphqlServer.start()
if conf.engineSigner != ZERO_ADDRESS:
let res = nimbus.ctx.am.getAccount(conf.engineSigner)
if res.isErr:
error "Failed to get account",
msg = res.error,
hint = "--key-store or --import-key"
quit(QuitFailure)
let rs = validateSealer(conf, nimbus.ctx, nimbus.chainRef)
if rs.isErr:
echo rs.error
quit(QuitFailure)
proc signFunc(signer: EthAddress, message: openArray[byte]): Result[RawSignature, cstring] {.gcsafe.} =
let
hashData = keccakHash(message)
acc = nimbus.ctx.am.getAccount(signer).tryGet()
rawSign = sign(acc.privateKey, SkMessage(hashData.data)).toRaw
ok(rawSign)
# TODO: There should be a better place to initialize this
nimbus.chainRef.clique.authorize(conf.engineSigner, signFunc)
var initialState = EngineStopped
if chainDB.totalDifficulty > chainDB.ttd:
initialState = EnginePostMerge
nimbus.sealingEngine = SealingEngineRef.new(
nimbus.chainRef, nimbus.ctx, conf.engineSigner,
nimbus.txPool, initialState
)
nimbus.sealingEngine.start()
if conf.engineApiEnabled:
if conf.engineApiPort != conf.rpcPort:
nimbus.engineApiServer = newRpcHttpServer([
initTAddress(conf.engineApiAddress, conf.engineApiPort)
])
setupEngineAPI(nimbus.sealingEngine, nimbus.engineApiServer)
setupEthRpc(nimbus.ethNode, nimbus.ctx, chainDB, nimbus.txPool, nimbus.engineApiServer)
nimbus.engineApiServer.start()
else:
setupEngineAPI(nimbus.sealingEngine, nimbus.rpcServer)
info "Starting engine API server", port = conf.engineApiPort
if conf.engineApiWsEnabled:
if conf.engineApiWsPort != conf.wsPort:
nimbus.engineApiWsServer = newRpcWebSocketServer(
initTAddress(conf.engineApiWsAddress, conf.engineApiWsPort),
authHandler = jwtHook)
setupEngineAPI(nimbus.sealingEngine, nimbus.engineApiWsServer)
setupEthRpc(nimbus.ethNode, nimbus.ctx, chainDB, nimbus.txPool, nimbus.engineApiWsServer)
nimbus.engineApiWsServer.start()
else:
setupEngineAPI(nimbus.sealingEngine, nimbus.wsRpcServer)
info "Starting WebSocket engine API server", port = conf.engineApiWsPort
else:
if conf.engineApiEnabled or conf.engineApiWsEnabled:
warn "Cannot enable engine API without sealing engine",
hint = "use --engine-signer to enable sealing engine"
# metrics server
if conf.metricsEnabled:
info "Starting metrics HTTP server", address = conf.metricsAddress, port = conf.metricsPort
startMetricsHttpServer($conf.metricsAddress, conf.metricsPort)
proc start(nimbus: NimbusNode, conf: NimbusConf) =
## logging
setLogLevel(conf.logLevel)
if conf.logFile.isSome:
let logFile = string conf.logFile.get()
defaultChroniclesStream.output.outFile = nil # to avoid closing stdout
discard defaultChroniclesStream.output.open(logFile, fmAppend)
when defined(evmc_enabled):
evmcSetLibraryPath(conf.evm)
createDir(string conf.dataDir)
let trieDB = trieDB newChainDb(string conf.dataDir)
var chainDB = newBaseChainDB(trieDB,
conf.pruneMode == PruneMode.Full,
conf.networkId,
conf.networkParams
)
chainDB.populateProgress()
if canonicalHeadHashKey().toOpenArray notin trieDB:
initializeEmptyDb(chainDb)
doAssert(canonicalHeadHashKey().toOpenArray in trieDB)
let protocols = conf.getProtocolFlags()
case conf.cmd
of NimbusCmd.`import`:
importBlocks(conf, chainDB)
else:
manageAccounts(nimbus, conf)
setupP2P(nimbus, conf, chainDB, protocols)
localServices(nimbus, conf, chainDB, protocols)
if ProtocolFlag.Eth in protocols:
# TODO: temp code until the CLI/RPC interface is fleshed out
let status = waitFor nimbus.ethNode.fastBlockchainSync()
if status != syncSuccess:
debug "Block sync failed: ", status
if nimbus.state == Starting:
# it might have been set to "Stopping" with Ctrl+C
nimbus.state = Running
proc stop*(nimbus: NimbusNode, conf: NimbusConf) {.async, gcsafe.} =
trace "Graceful shutdown"
if conf.rpcEnabled:
await nimbus.rpcServer.stop()
if conf.engineApiEnabled:
await nimbus.engineAPiServer.stop()
if conf.wsEnabled:
nimbus.wsRpcServer.stop()
if conf.engineApiWsEnabled:
nimbus.engineApiWsServer.stop()
if conf.graphqlEnabled:
await nimbus.graphqlServer.stop()
if conf.engineSigner != ZERO_ADDRESS:
await nimbus.sealingEngine.stop()
proc process*(nimbus: NimbusNode, conf: NimbusConf) =
# Main event loop
while nimbus.state == Running:
try:
poll()
except CatchableError as e:
debug "Exception in poll()", exc = e.name, err = e.msg
discard e # silence warning when chronicles not activated
# Stop loop
waitFor nimbus.stop(conf)
when isMainModule:
var nimbus = NimbusNode(state: Starting, ctx: newEthContext())
## Ctrl+C handling
proc controlCHandler() {.noconv.} =
when defined(windows):
# workaround for https://github.com/nim-lang/Nim/issues/4057
setupForeignThreadGc()
nimbus.state = Stopping
echo "\nCtrl+C pressed. Waiting for a graceful shutdown."
setControlCHook(controlCHandler)
## Show logs on stdout until we get the user's logging choice
discard defaultChroniclesStream.output.open(stdout)
## Processing command line arguments
let conf = makeConfig()
nimbus.start(conf)
nimbus.process(conf)