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const Wallet = require('ethereumjs-wallet')
const importers = require('ethereumjs-wallet/thirdparty')
const ethUtil = require('ethereumjs-util')
const accountImporter = {
importAccount (strategy, args) {
try {
const importer = this.strategies[strategy]
const privateKeyHex = importer.apply(null, args)
return Promise.resolve(privateKeyHex)
} catch (e) {
return Promise.reject(e)
}
},
strategies: {
'Private Key': (privateKey) => {
const stripped = ethUtil.stripHexPrefix(privateKey)
return stripped
},
'JSON File': (input, password) => {
let wallet
try {
wallet = importers.fromEtherWallet(input, password)
} catch (e) {
console.log('Attempt to import as EtherWallet format failed, trying V3...')
}
if (!wallet) {
wallet = Wallet.fromV3(input, password, true)
}
return walletToPrivateKey(wallet)
},
},
}
function walletToPrivateKey (wallet) {
const privateKeyBuffer = wallet.getPrivateKey()
return ethUtil.bufferToHex(privateKeyBuffer)
}
module.exports = accountImporter
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