import os, sequtils, strutils, options, json, terminal, random, chronos, chronicles, confutils, stint, json_serialization, ../filepath, ../networking/network_metadata, web3, web3/confutils_defs, eth/keys, stew/io2, ../spec/[datatypes, crypto, presets], ../ssz/merkleization, ../validators/keystore_management # Compiled version of /scripts/depositContract.v.py in this repo # The contract was compiled in Remix (https://remix.ethereum.org/) with vyper (remote) compiler. const contractCode = staticRead "deposit_contract_code.txt" type Eth1Address = web3.Address StartUpCommand {.pure.} = enum deploy drain sendEth generateSimulationDeposits sendDeposits CliConfig = object web3Url* {. defaultValue: "", desc: "URL of the Web3 server to observe Eth1" name: "web3-url" }: string privateKey* {. defaultValue: "" desc: "Private key of the controlling account" name: "private-key" }: string askForKey {. defaultValue: false desc: "Ask for an Eth1 private key interactively" name: "ask-for-key" }: bool eth2Network* {. desc: "The Eth2 network preset to use" name: "network" }: Option[string] case cmd* {.command.}: StartUpCommand of deploy: discard of drain: drainedContractAddress* {. desc: "Address of the contract to drain" name: "deposit-contract" }: Eth1Address of sendEth: toAddress {.name: "to".}: Eth1Address valueEth {.name: "eth".}: string of generateSimulationDeposits: simulationDepositsCount {. desc: "The number of validator keystores to generate" name: "count" }: Natural outValidatorsDir {. desc: "A directory to store the generated validator keystores" name: "out-validators-dir" }: OutDir outSecretsDir {. desc: "A directory to store the generated keystore password files" name: "out-secrets-dir" }: OutDir outDepositsFile {. desc: "A LaunchPad deposits file to write" name: "out-deposits-file" }: OutFile of sendDeposits: depositsFile {. desc: "A LaunchPad deposits file" name: "deposits-file" }: InputFile depositContractAddress {. desc: "Address of the deposit contract" name: "deposit-contract" }: Eth1Address minDelay {. defaultValue: 0.0 desc: "Minimum possible delay between making two deposits (in seconds)" name: "min-delay" }: float maxDelay {. defaultValue: 0.0 desc: "Maximum possible delay between making two deposits (in seconds)" name: "max-delay" }: float contract(DepositContract): proc deposit(pubkey: Bytes48, withdrawalCredentials: Bytes32, signature: Bytes96, deposit_data_root: FixedBytes[32]) proc drain() proc deployContract*(web3: Web3, code: string): Future[ReceiptObject] {.async.} = var code = code if code[1] notin {'x', 'X'}: code = "0x" & code let tr = EthSend( source: web3.defaultAccount, data: code, gas: Quantity(3000000).some, gasPrice: 1.some) let r = await web3.send(tr) result = await web3.getMinedTransactionReceipt(r) proc sendEth(web3: Web3, to: Eth1Address, valueEth: int): Future[TxHash] = let tr = EthSend( source: web3.defaultAccount, gas: Quantity(3000000).some, gasPrice: 1.some, value: some(valueEth.u256 * 1000000000000000000.u256), to: some(to)) web3.send(tr) type DelayGenerator* = proc(): chronos.Duration {.closure, gcsafe.} proc ethToWei(eth: UInt256): UInt256 = eth * 1000000000000000000.u256 proc initWeb3(web3Url, privateKey: string): Future[Web3] {.async.} = result = await newWeb3(web3Url) if privateKey.len != 0: result.privateKey = some(PrivateKey.fromHex(privateKey)[]) else: let accounts = await result.provider.eth_accounts() doAssert(accounts.len > 0) result.defaultAccount = accounts[0] # TODO: async functions should note take `seq` inputs because # this leads to full copies. proc sendDeposits*(deposits: seq[LaunchPadDeposit], web3Url, privateKey: string, depositContractAddress: Eth1Address, delayGenerator: DelayGenerator = nil) {.async.} = notice "Sending deposits", web3 = web3Url, depositContract = depositContractAddress var web3 = await initWeb3(web3Url, privateKey) let depositContract = web3.contractSender(DepositContract, Address depositContractAddress) for i, launchPadDeposit in deposits: let dp = launchPadDeposit as DepositData while true: try: let tx = depositContract.deposit( Bytes48(dp.pubKey.toRaw()), Bytes32(dp.withdrawal_credentials.data), Bytes96(dp.signature.toRaw()), FixedBytes[32](hash_tree_root(dp).data)) let status = await tx.send(value = 32.u256.ethToWei, gasPrice = 1) info "Deposit sent", status = $status if delayGenerator != nil: await sleepAsync(delayGenerator()) break except CatchableError: await sleepAsync(60.seconds) web3 = await initWeb3(web3Url, privateKey) proc main() {.async.} = var cfg = CliConfig.load() let rng = keys.newRng() if cfg.cmd == StartUpCommand.generateSimulationDeposits: let mnemonic = generateMnemonic(rng[]) seed = getSeed(mnemonic, KeyStorePass.init "") runtimePreset = getRuntimePresetForNetwork(cfg.eth2Network) let vres = secureCreatePath(string cfg.outValidatorsDir) if vres.isErr(): warn "Could not create validators folder", path = string cfg.outValidatorsDir, err = ioErrorMsg(vres.error) let sres = secureCreatePath(string cfg.outSecretsDir) if sres.isErr(): warn "Could not create secrets folder", path = string cfg.outSecretsDir, err = ioErrorMsg(sres.error) let deposits = generateDeposits( runtimePreset, rng[], seed, 0, cfg.simulationDepositsCount, string cfg.outValidatorsDir, string cfg.outSecretsDir) if deposits.isErr: fatal "Failed to generate deposits", err = deposits.error quit 1 let launchPadDeposits = mapIt(deposits.value, LaunchPadDeposit.init(runtimePreset, it)) Json.saveFile(string cfg.outDepositsFile, launchPadDeposits) notice "Deposit data written", filename = cfg.outDepositsFile quit 0 var deposits: seq[LaunchPadDeposit] if cfg.cmd == StartUpCommand.sendDeposits: deposits = Json.loadFile(string cfg.depositsFile, seq[LaunchPadDeposit]) if cfg.askForKey: var privateKey: TaintedString reasonForKey = "" if cfg.cmd == StartUpCommand.sendDeposits: let depositsWord = if deposits.len > 1: "deposits" else: "deposit" totalEthNeeded = 32 * deposits.len reasonForKey = " in order to make your $1 (you'll need access to $2 ETH)" % [depositsWord, $totalEthNeeded] echo "Please enter your Goerli Eth1 private key in hex form (e.g. 0x1a2...f3c)" & reasonForKey if not readPasswordFromStdin("> ", privateKey): error "Failed to read an Eth1 private key from standard input" if privateKey.len > 0: cfg.privateKey = privateKey.string let web3 = await initWeb3(cfg.web3Url, cfg.privateKey) case cfg.cmd of StartUpCommand.deploy: let receipt = await web3.deployContract(contractCode) echo receipt.contractAddress.get, ";", receipt.blockHash of StartUpCommand.drain: let sender = web3.contractSender(DepositContract, cfg.drainedContractAddress) discard await sender.drain().send(gasPrice = 1) of StartUpCommand.sendEth: echo await sendEth(web3, cfg.toAddress, cfg.valueEth.parseInt) of StartUpCommand.sendDeposits: var delayGenerator: DelayGenerator if not (cfg.maxDelay > 0.0): cfg.maxDelay = cfg.minDelay elif cfg.minDelay > cfg.maxDelay: echo "The minimum delay should not be larger than the maximum delay" quit 1 if cfg.maxDelay > 0.0: delayGenerator = proc (): chronos.Duration = chronos.milliseconds (rand(cfg.minDelay..cfg.maxDelay)*1000).int await sendDeposits(deposits, cfg.web3Url, cfg.privateKey, cfg.depositContractAddress, delayGenerator) of StartUpCommand.generateSimulationDeposits: # This is handled above before the case statement discard when isMainModule: waitFor main()