46 lines
1.4 KiB
JavaScript
46 lines
1.4 KiB
JavaScript
// @flow
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import TrezorConnect from 'vendor/trezor-connect';
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import EthTx from 'ethereumjs-tx';
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import Big from 'bignumber.js';
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import { addHexPrefix } from 'ethereumjs-util';
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import DeterministicWallet from './deterministic';
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import { stripHex } from 'libs/values';
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import type { RawTransaction } from 'libs/transaction';
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export default class TrezorWallet extends DeterministicWallet {
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signRawTransaction(tx: RawTransaction): Promise<string> {
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return new Promise((resolve, reject) => {
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TrezorConnect.ethereumSignTx(
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// Args
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this.getPath(),
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stripHex(tx.nonce),
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stripHex(tx.gasPrice),
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stripHex(tx.gasLimit),
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stripHex(tx.to),
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stripHex(tx.value),
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stripHex(tx.data),
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tx.chainId,
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// Callback
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result => {
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if (!result.success) {
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return reject(new Error(result.error));
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}
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// TODO: Explain what's going on here? Add tests? Adapted from:
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// https://github.com/kvhnuke/etherwallet/blob/v3.10.2.6/app/scripts/uiFuncs.js#L24
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const txToSerialize = {
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...tx,
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v: addHexPrefix(new Big(result.v).toString(16)),
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r: addHexPrefix(result.r),
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s: addHexPrefix(result.s)
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};
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const eTx = new EthTx(txToSerialize);
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const signedTx = addHexPrefix(eTx.serialize().toString('hex'));
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resolve(signedTx);
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}
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);
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});
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}
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}
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