node-ethereum-wallet
Version:
Command-line light wallet for Ethereum
469 lines (407 loc) • 14.8 kB
JavaScript
#!/usr/bin/env node
'use strict'
const mainLib = require('../lib')
const pkg = require('../package.json')
const cmdline = require('node-cmdline-parser')
const pwdPrompt = require('password-prompt')
const readline = require('readline')
const fs = require('fs')
const commandLineUsage = require('command-line-usage')
const updateCheck = require('update-check')
init()
function output(str) {
if (cmdline.keyexists('json')) {
console.log(JSON.stringify(str))
} else {
console.log(str)
}
}
async function init() {
try {
let wallet = new mainLib(cmdline.get('provider', (cmdline.keyexists('testnet') ? 'testnet' : false) ))
await wallet.init(cmdline.get('datadir', (cmdline.keyexists('testnet') ? 'testnet' : false) ))
await wallet_startup(wallet)
if (cmdline.get('password')) {
await wallet.unlock(cmdline.get('password'))
}
if (cmdline.get('erc20')) {
let contract = new wallet.Erc20(cmdline.get('erc20'), cmdline.get('abi', null))
if (cmdline.keyexists('gettokendata')) {
try {
let contractName = contract.name,
contractSymbol = contract.symbol,
contractDecimals = contract.decimals,
contractTotalSupply = contract.totalSupply
output({
'name': await contractName.catch(e => console.log("[E] Unable to get token name. Please specify custom ABI or check contract address.")) || console.log("Unable to get token data. Please specify custom ABI or check contract address."),
'symbol': await contractSymbol.catch(e => console.log("[E] Unable to get token symbol. Please specify custom ABI or check contract address.")) || console.log("Unable to get token data. Please specify custom ABI or check contract address."),
'decimals': await contractDecimals.catch(e => console.log("[E] Unable to get token decimals. Please specify custom ABI or check contract address.")) || console.log("Unable to get token data. Please specify custom ABI or check contract address."),
'totalSupply': await contractTotalSupply.catch(e => console.log("[E] Unable to get token total supply. Please specify custom ABI or check contract address.")) || console.log("Unable to get token data. Please specify custom ABI or check contract address.")
})
} catch(e) {
console.log("[E] Unable to get token data. Please specify custom ABI or check contract address.")
}
} else if (cmdline.keyexists('getbalance')) {
if (cmdline.get('getbalance') && !cmdline.get('getbalance').startsWith("--")) {
// balanceOf
output(await contract.balanceOf(cmdline.get('getbalance'), cmdline.get('minconf', 0)))
} else {
// my balance
output(await contract.balanceOf(wallet.addresses[0], cmdline.get('minconf', 0)))
}
} else if (cmdline.get('sendtoaddress')) {
let amount = cmdline.get('amount', false)
let from = cmdline.get('from', wallet.addresses[0])
let to = cmdline.get('sendtoaddress', false)
let gasPrice = cmdline.get('gasprice', undefined)
let gasLimit = cmdline.get('gaslimit', undefined)
if (!to || amount === false || !cmdline.get('password'))
throw new Error("Required parameters: to, amount, password")
output(await contract.transfer(to, amount, {
from,
gasPrice,
gasLimit
}))
} else if (cmdline.get('allowance')) {
console.log("Not implemented, yet.")
} else if (cmdline.get('approve')) {
console.log("Not implemented, yet.")
} else {
show_help()
}
}
else if (cmdline.keyexists('help')) {
return show_help()
}
else if(cmdline.keyexists('getaddress')) {
let addresses = wallet.addresses
if(addresses.length) {
output(addresses[addresses.length-1])
} else {
output(await wallet.getNewAddress())
}
}
else if (cmdline.keyexists('getnewaddress')) {
output(await wallet.getNewAddress(parseInt(cmdline.get('getnewaddress', 1))))
}
else if (cmdline.keyexists('listaddress') || cmdline.keyexists('listaddresses')) {
output(wallet.addresses)
}
else if (cmdline.get('privatekeytoaddress')) {
output(wallet.privKeyToAddress(cmdline.get('privatekeytoaddress')))
}
else if (cmdline.get('dumpprivkey')) {
output(wallet.dumpPrivKey(cmdline.get('dumpprivkey')))
}
else if (cmdline.keyexists('dumpwallet')) {
let addresses = wallet.addresses,
privkeys = []
for(let addr of addresses) {
privkeys.push(wallet.dumpPrivKey(addr))
}
output(privkeys)
}
else if (cmdline.keyexists('getseed') || cmdline.keyexists('dumpseed')) {
output(wallet.seed)
}
else if (cmdline.keyexists('getreceivedbyaddress')) {
output(await wallet.getBalance(cmdline.get('getreceivedbyaddress'), cmdline.get('minconf', 0)))
}
else if (cmdline.keyexists('getbalance')) {
if (!wallet.addresses.length)
await wallet.getNewAddress()
output(await wallet.balance)
}
else if(cmdline.keyexists('getgasprice')) {
output(await wallet.gasPrice)
}
else if(cmdline.keyexists('getblocknumber') || cmdline.keyexists('getblockcount')) {
output(await wallet.blockNumber)
}
else if(cmdline.get('getblock')) {
output(await wallet.getBlock(cmdline.get('getblock')))
}
else if (cmdline.get('gettransaction') || cmdline.get('gettx')) {
output(await wallet.getTransaction(cmdline.get('gettransaction', cmdline.get('gettx'))))
}
else if (cmdline.get('decoderawtx') || cmdline.get('decoderawtransaction')) {
output(await wallet.decodeRawTx(cmdline.get('decoderawtx', cmdline.get('decoderawtransaction'))))
}
else if (cmdline.get('sendtoaddress')) {
let amount = cmdline.get('amount', false)
let from = cmdline.get('from', wallet.addresses[0])
let to = cmdline.get('sendtoaddress', false)
let gasprice = cmdline.get('gasprice', undefined)
let gaslimit = cmdline.get('gaslimit', undefined)
// if amount contains dot, we assume it is in ether
if (amount.includes("."))
amount = parseInt(parseFloat(amount)*1e18)
if (!to || amount === false)
throw new Error("Required parameters: to and amount")
output(await wallet.sendToAddress(from, to, amount, gasprice, gaslimit))
}
else if (cmdline.get('createrawtransaction')) {
let amount = cmdline.get('amount', false)
let from = cmdline.get('from', wallet.addresses[0])
let to = cmdline.get('createrawtransaction', false)
let gasprice = cmdline.get('gasprice', undefined)
let gaslimit = cmdline.get('gaslimit', undefined)
// if amount contains dot, we assume it is in ether
if (amount.includes("."))
amount = parseFloat(amount)*1e18
if (!to || amount === false)
throw new Error("Required parameters: to and amount")
output(await wallet.createRawTx(from, to, amount, gasprice, gaslimit))
}
else if (cmdline.get('sendrawtransaction') || cmdline.get('sendrawtx')) {
output(await wallet.sendRawTx(cmdline.get('sendrawtransaction', cmdline.get('sendrawtx'))))
}
else if (cmdline.get('signrawtransaction') || cmdline.get('signrawtx')) {
let from = cmdline.get('from', wallet.addresses[0])
output(wallet.signTx(cmdline.get('signrawtransaction', cmdline.get('signrawtx')), from))
}
else if (cmdline.get('backupwallet')) {
let filename = cmdline.get('backupwallet')
if (fs.existsSync(filename)) {
throw new Error("File already exists")
}
let fd = fs.openSync(filename, 'w')
fs.writeSync(fd, wallet.rawKeystore)
fs.closeSync(fd)
}
else {
show_help()
}
} catch(e) {
console.log("[ERR] "+e.message)
}
}
async function wallet_startup(wallet) {
// check if seed was generated
if (!(await wallet.hasKeystore)) {
try {
return await generate_keystore(wallet)
} catch(e) {
return process.exit(0)
}
}
}
async function generate_keystore(wallet) {
console.log("Your wallet has not been generated yet.")
let pwd
if(cmdline.get('password'))
pwd = cmdline.get('password')
else {
do {
pwd = await pwdPrompt("Please choose a password to encrypt your seed (Ctrl + C to exit): ", { method: 'hide'})
} while(!pwd)
}
if (cmdline.get('seed')) {
let seed = cmdline.get('seed')
if (wallet.isSeedValid(seed)) {
await wallet.createKeystore(pwd, seed)
console.log("[OK] You can now start using your wallet.")
process.exit(0)
} else {
console.log("Invalid seed. Please choose a new one.")
}
} else {
let seed = wallet.generateSeed()
console.log("Please write down the following words and keep it safe. Do not share with to anyone and do not lose it. This is your seed.")
console.log("Anyone who knows your seed is able to spend your funds. Also, if you lose it, your funds are lost permanently.")
console.log("\n\t"+seed+"\n")
console.log("After writting down your seed, press Enter to continue...")
require('child_process').spawnSync("read _ ", {shell: true, stdio: [0, 1, 2]});
console.clear()
console.log("Please write down your seed:")
let checkseed = await pwdPrompt("")
if (checkseed.toLowerCase().trim() == seed) {
await wallet.createKeystore(pwd, seed)
console.log("[OK] You can now start using your wallet.")
process.exit(0)
} else {
console.log("Invalid seed. Please run the software again to generate a new seed.")
}
}
}
async function show_help() {
let sections = []
let update = null;
try {
update = await checkForUpdate(pkg);
} catch (err) {
// fail silently
}
let superContent = ['{italic Version '+pkg.version+'}',
'{bold Website:} https://jesobreira.github.io/eth-cli']
if (update) {
superContent.push('🔔 {bold Update Available!} Run: npm i '+pkg.name+' -g')
}
sections.push({
header: 'ethereum-cli',
content: superContent
})
sections.push({
header: 'Available commands',
optionList: [
{
name: 'getaddress 🔑 ',
description: 'Show your wallet\'s main address'
},
{
name: 'getnewaddress 🔑 ',
description: 'Generates a new address and shows it'
},
{
name: 'listaddresses 🔑 ',
description: 'Lists all your generated addresses'
},
{
name: 'privatekeytoaddress',
typeLabel: '{underline privateKey}',
description: 'Converts a private key to address'
},
{
name: 'dumpprivkey 🔑 ',
typeLabel: '{underline wallet}',
description: 'Shows the private key of one of your wallet addresses'
},
{
name: 'dumpwallet 🔑 ',
description: 'Lists every private key of your wallet addresses'
},
{
name: 'dumpseed 🔑 ',
description: 'Shows your seed (mnemonic phrase)'
},
{
name: 'getreceivedbyaddress',
typeLabel: '{underline address} [--minconf {underline minimumConfirmations = 0}]',
description: 'Get an address\' balance'
},
{
name: 'getbalance',
typeLabel: '[--minconf {underline minimumConfirmations = 0}]',
description: 'Get your account\'s balance (all wallets summed up)'
},
{
name: 'getgasprice',
description: 'Get current gas price'
},
{
name: 'getblockcount',
description: 'Get current block\'s number'
},
{
name: 'getblock',
typeLabel: '{underline blockNumberOrHash}',
description: 'Get a block\'s data'
},
{
name: 'gettransaction',
typeLabel: '{underline txid}',
description: 'Get a transaction\'s data'
},
{
name: 'decoderawtx',
typeLabel: '{underline hex}',
description: 'Decodes a raw transaction'
},
{
name: 'backupwallet 🔑 ',
typeLabel: '{underline file}',
description: 'Backups your wallet onto {underline file}'
},
{
name: 'createrawtransaction 🔑 ',
typeLabel: '{underline to} --amount {underline amount} [--from {underline from}] [--gasprice {underline gasprice}] [--gaslimit {underline gaslimit}]',
description: 'Returns an hex-encoded raw transaction'
},
{
name: 'signrawtransaction 🔑 ',
typeLabel: '{underline hexRawTransaction} --from {underline from}',
description: 'Returns the hex-encoded raw transaction, signed by {underline from}'
},
{
name: 'sendrawtransaction',
typeLabel: '{underline hexRawSignedTransaction}',
description: 'Pushes a raw transaction to the network'
},
{
name: 'sendtoaddress 🔑 ',
typeLabel: '{underline to} --amount {underline amount} [--from {underline from}] [--gasprice {underline gasprice}] [--gaslimit {underline gaslimit}]',
description: 'Sends a transaction and returns its transaction ID. Amount will be interpreted as wei if no comma is found, or ether if comma is found (i.e. 1.0 = 1 ether; 1 = 1 wei)'
},
{
name: 'erc20',
typeLabel: '{underline contractAddr} [--abi {underline abi_or_file}]',
description: 'Specify an ERC-20 contract to use (see below)'
}
]
})
sections.push({
header: 'ERC-20 commands',
optionList: [
{
name: 'erc20',
typeLabel: '{underline contractAddr} [--abi {underline abi_or_file}]',
description: 'Specify an ERC-20 contract to use'
},
{
name: 'gettokendata',
typeLabel: '--erc20 {underline contract} [--abi {underline abi_or_file}]',
description: 'Get token data (name, symbol etc.) from contract, if available'
},
{
name: 'getbalance',
typeLabel: '[{underline address}] --erc20 {underline contract} [--abi {underline abi_or_file}]',
description: 'Get any wallet\'s balance. If address is not specified, it will return the sum of the balance of all your generated wallets'
},
{
name: 'sendtoaddress 🔑 ',
typeLabel: '{underline address} --erc20 {underline contract} [--abi {underline abi_or_file}] --amount {underline amount} [--from {underline fromaddr}]',
description: 'Sends an amount of ERC-20 token to an address'
}
]
})
sections.push({
header: 'Global options',
optionList: [
{
name: 'password',
typeLabel: '{underline password}',
description: 'Unlocks your wallet with your password. {bold Required for every command marked with 🔑}'
},
{
name: 'provider',
typeLabel: '{underline provider}',
description: '(Optional) Use "ropsten" for MyEtherApi.com\'s Ropsten testnet, or a HTTP web3 provider URL. Default is MyEtherAPI.com mainnet provider.'
},
{
name: 'testnet',
description: 'Alias for --provider testnet'
},
{
name: 'datadir',
typeLabel: '{underline folder}',
description: '(Optional) Set folder used as wallet storage. Default is ~/.ethereum-cl'
}
]
})
sections.push({
header: 'First-run options',
optionList: [
{
name: 'seed',
typeLabel: '{underline seed}',
description: '(Optional) Set a custom seed (useful for importing/restoring wallets). If not supplied, one will be generated.'
},
{
name: 'password',
typeLabel: '{underline password}',
description: '(Optional) Pre-set a password. If not supplied, it will be requested.'
}
]
})
console.log(commandLineUsage(sections))
}