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metamask-extension/app/scripts/migrations/025.js

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// next version number
/*
normalizes txParams on unconfirmed txs
*/
import { cloneDeep } from 'lodash'
import { addHexPrefix } from '../lib/util'
import { TRANSACTION_STATUSES } from '../../../shared/constants/transaction'
const version = 25
export default {
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version,
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async migrate(originalVersionedData) {
const versionedData = cloneDeep(originalVersionedData)
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versionedData.meta.version = version
const state = versionedData.data
const newState = transformState(state)
versionedData.data = newState
return versionedData
},
}
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function transformState(state) {
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const newState = state
if (newState.TransactionController) {
if (newState.TransactionController.transactions) {
const { transactions } = newState.TransactionController
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newState.TransactionController.transactions = transactions.map(
(txMeta) => {
if (txMeta.status !== TRANSACTION_STATUSES.UNAPPROVED) {
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return txMeta
}
txMeta.txParams = normalizeTxParams(txMeta.txParams)
return txMeta
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},
)
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}
}
return newState
}
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function normalizeTxParams(txParams) {
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// functions that handle normalizing of that key in txParams
const whiteList = {
from: (from) => addHexPrefix(from).toLowerCase(),
to: () => addHexPrefix(txParams.to).toLowerCase(),
nonce: (nonce) => addHexPrefix(nonce),
value: (value) => addHexPrefix(value),
data: (data) => addHexPrefix(data),
gas: (gas) => addHexPrefix(gas),
gasPrice: (gasPrice) => addHexPrefix(gasPrice),
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}
// apply only keys in the whiteList
const normalizedTxParams = {}
Object.keys(whiteList).forEach((key) => {
if (txParams[key]) {
normalizedTxParams[key] = whiteList[key](txParams[key])
}
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})
return normalizedTxParams
}