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60 lines
2.3 KiB
60 lines
2.3 KiB
import { isHexString } from 'ethereumjs-util';
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export function transactionMatchesNetwork(transaction, chainId, networkId) {
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if (typeof transaction.chainId !== 'undefined') {
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return transaction.chainId === chainId;
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}
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return transaction.metamaskNetworkId === networkId;
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}
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/**
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* Determines if the maxFeePerGas and maxPriorityFeePerGas fields are supplied
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* and valid inputs. This will return false for non hex string inputs.
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* @param {import("../constants/transaction").TransactionMeta} transaction -
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* the transaction to check
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* @returns {boolean} true if transaction uses valid EIP1559 fields
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*/
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export function isEIP1559Transaction(transaction) {
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return (
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isHexString(transaction?.txParams?.maxFeePerGas) &&
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isHexString(transaction?.txParams?.maxPriorityFeePerGas)
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);
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}
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/**
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* Determine if the maxFeePerGas and maxPriorityFeePerGas fields are not
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* supplied and that the gasPrice field is valid if it is provided. This will
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* return false if gasPrice is a non hex string.
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* @param {import("../constants/transaction").TransactionMeta} transaction -
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* the transaction to check
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* @returns {boolean} true if transaction uses valid Legacy fields OR lacks
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* EIP1559 fields
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*/
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export function isLegacyTransaction(transaction) {
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return (
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typeof transaction.txParams.maxFeePerGas === 'undefined' &&
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typeof transaction.txParams.maxPriorityFeePerGas === 'undefined' &&
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(typeof transaction.txParams.gasPrice === 'undefined' ||
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isHexString(transaction.txParams.gasPrice))
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);
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}
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/**
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* Determine if a transactions gas fees in txParams match those in its dappSuggestedGasFees property
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* @param {import("../constants/transaction").TransactionMeta} transaction -
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* the transaction to check
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* @returns {boolean} true if both the txParams and dappSuggestedGasFees are objects with truthy gas fee properties,
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* and those properties are strictly equal
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*/
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export function txParamsAreDappSuggested(transaction) {
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const { gasPrice, maxPriorityFeePerGas, maxFeePerGas } =
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transaction?.txParams || {};
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return (
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(gasPrice && gasPrice === transaction?.dappSuggestedGasFees?.gasPrice) ||
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(maxPriorityFeePerGas &&
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maxFeePerGas &&
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transaction?.dappSuggestedGasFees?.maxPriorityFeePerGas ===
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maxPriorityFeePerGas &&
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transaction?.dappSuggestedGasFees?.maxFeePerGas === maxFeePerGas)
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);
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}
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