353 lines
12 KiB
Nim
353 lines
12 KiB
Nim
# Nimbus
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# Copyright (c) 2018 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
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# * MIT license ([LICENSE-MIT](LICENSE-MIT))
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# at your option.
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# This file may not be copied, modified, or distributed except according to
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# those terms.
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import
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../nimbus/vm_compile_info
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import
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os, strutils, net, options,
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stew/shims/net as stewNet,
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eth/keys, db/[storage_types, db_chain, select_backend],
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eth/common as eth_common, eth/p2p as eth_p2p,
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chronos, json_rpc/rpcserver, chronicles,
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eth/p2p/rlpx_protocols/les_protocol,
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./p2p/blockchain_sync, eth/net/nat, eth/p2p/peer_pool,
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./p2p/clique/[clique_desc, clique_sealer],
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./sync/protocol_eth65,
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config, genesis, rpc/[common, p2p, debug, engine_api], p2p/chain,
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eth/trie/db, metrics, metrics/[chronos_httpserver, chronicles_support],
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graphql/ethapi, context, utils/tx_pool,
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"."/[conf_utils, sealer, constants, utils]
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when defined(evmc_enabled):
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import transaction/evmc_dynamic_loader
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## TODO:
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## * No IPv6 support
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## * No multiple bind addresses support
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## * No database support
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type
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NimbusState = enum
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Starting, Running, Stopping
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NimbusNode = ref object
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rpcServer: RpcHttpServer
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engineApiServer: RpcHttpServer
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engineApiWsServer: RpcWebSocketServer
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ethNode: EthereumNode
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state: NimbusState
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graphqlServer: GraphqlHttpServerRef
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wsRpcServer: RpcWebSocketServer
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sealingEngine: SealingEngineRef
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ctx: EthContext
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chainRef: Chain
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txPool: TxPoolRef
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proc importBlocks(conf: NimbusConf, chainDB: BaseChainDB) =
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if string(conf.blocksFile).len > 0:
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# success or not, we quit after importing blocks
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if not importRlpBlock(string conf.blocksFile, chainDB):
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quit(QuitFailure)
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else:
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quit(QuitSuccess)
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proc manageAccounts(nimbus: NimbusNode, conf: NimbusConf) =
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if string(conf.keyStore).len > 0:
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let res = nimbus.ctx.am.loadKeystores(string conf.keyStore)
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if res.isErr:
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echo res.error()
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quit(QuitFailure)
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if string(conf.importKey).len > 0:
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let res = nimbus.ctx.am.importPrivateKey(string conf.importKey)
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if res.isErr:
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echo res.error()
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quit(QuitFailure)
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proc setupP2P(nimbus: NimbusNode, conf: NimbusConf,
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chainDB: BaseChainDB, protocols: set[ProtocolFlag]) =
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## Creating P2P Server
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let kpres = nimbus.ctx.hexToKeyPair(conf.nodeKeyHex)
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if kpres.isErr:
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echo kpres.error()
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quit(QuitFailure)
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let keypair = kpres.get()
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var address = Address(
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ip: conf.listenAddress,
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tcpPort: conf.tcpPort,
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udpPort: conf.udpPort
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)
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if conf.nat.hasExtIp:
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# any required port redirection is assumed to be done by hand
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address.ip = conf.nat.extIp
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else:
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# automated NAT traversal
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let extIP = getExternalIP(conf.nat.nat)
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# This external IP only appears in the logs, so don't worry about dynamic
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# IPs. Don't remove it either, because the above call does initialisation
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# and discovery for NAT-related objects.
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if extIP.isSome:
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address.ip = extIP.get()
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let extPorts = redirectPorts(tcpPort = address.tcpPort,
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udpPort = address.udpPort,
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description = NIMBUS_NAME & " " & NIMBUS_VERSION)
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if extPorts.isSome:
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(address.tcpPort, address.udpPort) = extPorts.get()
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let bootstrapNodes = conf.getBootNodes()
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nimbus.ethNode = newEthereumNode(
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keypair, address, conf.networkId, nil, conf.agentString,
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addAllCapabilities = false, minPeers = conf.maxPeers,
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bootstrapNodes = bootstrapNodes,
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bindUdpPort = conf.udpPort, bindTcpPort = conf.tcpPort,
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bindIp = conf.listenAddress)
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# Add protocol capabilities based on protocol flags
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if ProtocolFlag.Eth in protocols:
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nimbus.ethNode.addCapability eth
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if ProtocolFlag.Les in protocols:
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nimbus.ethNode.addCapability les
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# chainRef: some name to avoid module-name/filed/function misunderstandings
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nimbus.chainRef = newChain(chainDB)
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nimbus.ethNode.chain = nimbus.chainRef
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if conf.verifyFrom.isSome:
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let verifyFrom = conf.verifyFrom.get()
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nimbus.chainRef.extraValidation = 0 < verifyFrom
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nimbus.chainRef.verifyFrom = verifyFrom
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# Connect directly to the static nodes
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let staticPeers = conf.getStaticPeers()
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for enode in staticPeers:
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asyncCheck nimbus.ethNode.peerPool.connectToNode(newNode(enode))
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# Start Eth node
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waitFor nimbus.ethNode.connectToNetwork(
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enableDiscovery = conf.discovery != DiscoveryType.None)
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proc localServices(nimbus: NimbusNode, conf: NimbusConf,
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chainDB: BaseChainDB, protocols: set[ProtocolFlag]) =
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# app wide TxPool singleton
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# TODO: disable some of txPool internal mechanism if
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# the engineSigner is zero.
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nimbus.txPool = TxPoolRef.new(chainDB, conf.engineSigner)
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# metrics logging
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if conf.logMetricsEnabled:
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# https://github.com/nim-lang/Nim/issues/17369
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var logMetrics: proc(udata: pointer) {.gcsafe, raises: [Defect].}
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logMetrics = proc(udata: pointer) =
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{.gcsafe.}:
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let registry = defaultRegistry
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info "metrics", registry
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discard setTimer(Moment.fromNow(conf.logMetricsInterval.seconds), logMetrics)
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discard setTimer(Moment.fromNow(conf.logMetricsInterval.seconds), logMetrics)
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# Creating RPC Server
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if conf.rpcEnabled:
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nimbus.rpcServer = newRpcHttpServer([initTAddress(conf.rpcAddress, conf.rpcPort)])
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setupCommonRpc(nimbus.ethNode, conf, nimbus.rpcServer)
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# Enable RPC APIs based on RPC flags and protocol flags
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let rpcFlags = conf.getRpcFlags()
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if (RpcFlag.Eth in rpcFlags and ProtocolFlag.Eth in protocols) or
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(conf.engineApiPort == conf.rpcPort):
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setupEthRpc(nimbus.ethNode, nimbus.ctx, chainDB, nimbus.txPool, nimbus.rpcServer)
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if RpcFlag.Debug in rpcFlags:
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setupDebugRpc(chainDB, nimbus.rpcServer)
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nimbus.rpcServer.rpc("admin_quit") do() -> string:
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{.gcsafe.}:
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nimbus.state = Stopping
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result = "EXITING"
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nimbus.rpcServer.start()
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# Creating Websocket RPC Server
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if conf.wsEnabled:
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nimbus.wsRpcServer = newRpcWebSocketServer(initTAddress(conf.wsAddress, conf.wsPort))
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setupCommonRpc(nimbus.ethNode, conf, nimbus.wsRpcServer)
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# Enable Websocket RPC APIs based on RPC flags and protocol flags
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let wsFlags = conf.getWsFlags()
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if (RpcFlag.Eth in wsFlags and ProtocolFlag.Eth in protocols) or
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(conf.engineApiWsPort == conf.wsPort):
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setupEthRpc(nimbus.ethNode, nimbus.ctx, chainDB, nimbus.txPool, nimbus.wsRpcServer)
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if RpcFlag.Debug in wsFlags:
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setupDebugRpc(chainDB, nimbus.wsRpcServer)
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nimbus.wsRpcServer.start()
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if conf.graphqlEnabled:
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nimbus.graphqlServer = setupGraphqlHttpServer(conf, chainDB, nimbus.ethNode, nimbus.txPool)
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nimbus.graphqlServer.start()
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if conf.engineSigner != ZERO_ADDRESS:
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let res = nimbus.ctx.am.getAccount(conf.engineSigner)
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if res.isErr:
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error "Failed to get account",
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msg = res.error,
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hint = "--key-store or --import-key"
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quit(QuitFailure)
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let rs = validateSealer(conf, nimbus.ctx, nimbus.chainRef)
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if rs.isErr:
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echo rs.error
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quit(QuitFailure)
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proc signFunc(signer: EthAddress, message: openArray[byte]): Result[RawSignature, cstring] {.gcsafe.} =
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let
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hashData = keccakHash(message)
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acc = nimbus.ctx.am.getAccount(signer).tryGet()
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rawSign = sign(acc.privateKey, SkMessage(hashData.data)).toRaw
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ok(rawSign)
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# TODO: There should be a better place to initialize this
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nimbus.chainRef.clique.authorize(conf.engineSigner, signFunc)
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var initialState = EngineStopped
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if chainDB.totalDifficulty > chainDB.ttd:
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initialState = EnginePostMerge
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nimbus.sealingEngine = SealingEngineRef.new(
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nimbus.chainRef, nimbus.ctx, conf.engineSigner,
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nimbus.txPool, initialState
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)
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nimbus.sealingEngine.start()
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if conf.engineApiEnabled:
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if conf.engineApiPort != conf.rpcPort:
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nimbus.engineApiServer = newRpcHttpServer([
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initTAddress(conf.engineApiAddress, conf.engineApiPort)
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])
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setupEngineAPI(nimbus.sealingEngine, nimbus.engineApiServer)
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setupEthRpc(nimbus.ethNode, nimbus.ctx, chainDB, nimbus.txPool, nimbus.engineApiServer)
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nimbus.engineApiServer.start()
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else:
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setupEngineAPI(nimbus.sealingEngine, nimbus.rpcServer)
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info "Starting engine API server", port = conf.engineApiPort
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if conf.engineApiWsEnabled:
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if conf.engineApiWsPort != conf.wsPort:
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nimbus.engineApiWsServer = newRpcWebSocketServer(
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initTAddress(conf.engineApiWsAddress, conf.engineApiWsPort))
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setupEngineAPI(nimbus.sealingEngine, nimbus.engineApiWsServer)
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setupEthRpc(nimbus.ethNode, nimbus.ctx, chainDB, nimbus.txPool, nimbus.engineApiWsServer)
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nimbus.engineApiWsServer.start()
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else:
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setupEngineAPI(nimbus.sealingEngine, nimbus.wsRpcServer)
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info "Starting WebSocket engine API server", port = conf.engineApiWsPort
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else:
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if conf.engineApiEnabled or conf.engineApiWsEnabled:
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warn "Cannot enable engine API without sealing engine",
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hint = "use --engine-signer to enable sealing engine"
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# metrics server
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if conf.metricsEnabled:
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info "Starting metrics HTTP server", address = conf.metricsAddress, port = conf.metricsPort
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startMetricsHttpServer($conf.metricsAddress, conf.metricsPort)
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proc start(nimbus: NimbusNode, conf: NimbusConf) =
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## logging
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setLogLevel(conf.logLevel)
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if conf.logFile.isSome:
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let logFile = string conf.logFile.get()
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defaultChroniclesStream.output.outFile = nil # to avoid closing stdout
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discard defaultChroniclesStream.output.open(logFile, fmAppend)
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when defined(evmc_enabled):
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evmcSetLibraryPath(conf.evm)
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createDir(string conf.dataDir)
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let trieDB = trieDB newChainDb(string conf.dataDir)
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var chainDB = newBaseChainDB(trieDB,
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conf.pruneMode == PruneMode.Full,
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conf.networkId,
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conf.networkParams
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)
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chainDB.populateProgress()
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if canonicalHeadHashKey().toOpenArray notin trieDB:
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initializeEmptyDb(chainDb)
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doAssert(canonicalHeadHashKey().toOpenArray in trieDB)
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let protocols = conf.getProtocolFlags()
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case conf.cmd
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of NimbusCmd.`import`:
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importBlocks(conf, chainDB)
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else:
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manageAccounts(nimbus, conf)
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setupP2P(nimbus, conf, chainDB, protocols)
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localServices(nimbus, conf, chainDB, protocols)
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if ProtocolFlag.Eth in protocols:
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# TODO: temp code until the CLI/RPC interface is fleshed out
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let status = waitFor nimbus.ethNode.fastBlockchainSync()
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if status != syncSuccess:
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debug "Block sync failed: ", status
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if nimbus.state == Starting:
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# it might have been set to "Stopping" with Ctrl+C
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nimbus.state = Running
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proc stop*(nimbus: NimbusNode, conf: NimbusConf) {.async, gcsafe.} =
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trace "Graceful shutdown"
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if conf.rpcEnabled:
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await nimbus.rpcServer.stop()
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if conf.engineApiEnabled:
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await nimbus.engineAPiServer.stop()
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if conf.wsEnabled:
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nimbus.wsRpcServer.stop()
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if conf.engineApiWsEnabled:
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nimbus.engineApiWsServer.stop()
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if conf.graphqlEnabled:
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await nimbus.graphqlServer.stop()
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if conf.engineSigner != ZERO_ADDRESS:
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await nimbus.sealingEngine.stop()
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proc process*(nimbus: NimbusNode, conf: NimbusConf) =
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# Main event loop
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while nimbus.state == Running:
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try:
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poll()
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except CatchableError as e:
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debug "Exception in poll()", exc = e.name, err = e.msg
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discard e # silence warning when chronicles not activated
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# Stop loop
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waitFor nimbus.stop(conf)
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when isMainModule:
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var nimbus = NimbusNode(state: Starting, ctx: newEthContext())
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## Ctrl+C handling
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proc controlCHandler() {.noconv.} =
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when defined(windows):
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# workaround for https://github.com/nim-lang/Nim/issues/4057
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setupForeignThreadGc()
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nimbus.state = Stopping
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echo "\nCtrl+C pressed. Waiting for a graceful shutdown."
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setControlCHook(controlCHandler)
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## Show logs on stdout until we get the user's logging choice
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discard defaultChroniclesStream.output.open(stdout)
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## Processing command line arguments
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let conf = makeConfig()
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nimbus.start(conf)
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nimbus.process(conf)
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