80 lines
2.3 KiB
TypeScript
80 lines
2.3 KiB
TypeScript
import { IFullWallet } from '../IWallet';
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import { ExtendedRawTransaction } from 'libs/transaction';
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import { networkIdToName, sanitizeHex } from 'libs/values';
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import { bufferToHex } from 'ethereumjs-util';
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import { configuredStore } from 'store';
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import { getNodeLib } from 'selectors/config';
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import Web3Node, { isWeb3Node } from 'libs/nodes/web3';
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import { INode } from 'libs/nodes/INode';
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import BN from 'bn.js';
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export default class Web3Wallet implements IFullWallet {
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private address: string;
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private network: string;
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constructor(address: string, network: string) {
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this.address = address;
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this.network = network;
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}
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public getAddressString(): Promise<string> {
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return Promise.resolve(this.address);
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}
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public signRawTransaction(): Promise<string> {
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return Promise.reject(
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new Error('Web3 wallets cannot sign raw transactions.')
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);
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}
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public async signMessage(msg: string): Promise<string> {
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const msgHex = bufferToHex(Buffer.from(msg));
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const state = configuredStore.getState();
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const nodeLib: Web3Node | INode = getNodeLib(state);
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if (!isWeb3Node(nodeLib)) {
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throw new Error('Web3 wallets can only be used with a Web3 node.');
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}
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return nodeLib.signMessage(msgHex, this.address);
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}
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public async sendTransaction(
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transaction: ExtendedRawTransaction
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): Promise<string> {
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const state = configuredStore.getState();
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const nodeLib: Web3Node | INode = getNodeLib(state);
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const { from, to, value, gasLimit, gasPrice, data, nonce } = transaction;
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const web3Tx = {
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from,
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to,
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value,
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gas:
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gasLimit instanceof BN ? sanitizeHex(gasLimit.toString(16)) : gasLimit,
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gasPrice:
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gasPrice instanceof BN ? sanitizeHex(gasPrice.toString(16)) : gasPrice,
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data,
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nonce
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};
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if (!isWeb3Node(nodeLib)) {
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throw new Error('Web3 wallets can only be used with a Web3 node.');
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}
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await this.networkCheck(nodeLib);
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return nodeLib.sendTransaction(web3Tx);
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}
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private async networkCheck(lib: Web3Node) {
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const netId = await lib.getNetVersion();
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const netName = networkIdToName(netId);
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if (this.network !== netName) {
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throw new Error(
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`Expected MetaMask / Mist network to be ${this.network}, but got ${
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netName
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}. Please change the network or restart MyEtherWallet.`
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);
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}
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}
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}
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