@trezor/connect-plugin-ethereum/libESM/index.js

@trezor/connect plugin for Ethereum

import * as sigUtil from "@metamask/eth-sig-util";
function sanitizeData(data) {
  switch (Object.prototype.toString.call(data)) {
    case '[object Object]':
      {
        const entries = Object.keys(data).map(k => [k, sanitizeData(data[k])]);
        return Object.fromEntries(entries);
      }
    case '[object Array]':
      return data.map(v => sanitizeData(v));
    case '[object BigInt]':
      return data.toString();
    default:
      return data;
  }
}
export const transformTypedData = (data, metamask_v4_compat) => {
  if (!metamask_v4_compat) {
    throw new Error('Trezor: Only version 4 of typed data signing is supported');
  }
  const version = sigUtil.SignTypedDataVersion.V4;
  const {
    types,
    primaryType,
    domain,
    message
  } = sigUtil.TypedDataUtils.sanitizeData(data);
  const domainSeparatorHash = sigUtil.TypedDataUtils.hashStruct('EIP712Domain', sanitizeData(domain), types, version).toString('hex');
  let messageHash = null;
  if (primaryType !== 'EIP712Domain') {
    messageHash = sigUtil.TypedDataUtils.hashStruct(primaryType, sanitizeData(message), types, version).toString('hex');
  }
  return {
    domain_separator_hash: domainSeparatorHash,
    message_hash: messageHash,
    ...data
  };
};
export default transformTypedData;
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