@metamask/eth-ledger-bridge-keyring
Version:
A MetaMask compatible keyring, for ledger hardware wallets
58 lines • 1.98 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.MetaMaskLedgerHwAppEth = void 0;
const hw_app_eth_1 = __importDefault(require("@ledgerhq/hw-app-eth"));
const buffer_1 = require("buffer");
class MetaMaskLedgerHwAppEth extends hw_app_eth_1.default {
constructor() {
super(...arguments);
this.mainAppName = 'BOLOS';
this.ethAppName = 'Ethereum';
this.transportEncoding = 'ascii';
}
/**
* Method to open ethereum application on ledger device.
*
*/
async openEthApp() {
await this.transport.send(0xe0, 0xd8, 0x00, 0x00, buffer_1.Buffer.from(this.ethAppName, this.transportEncoding));
}
/**
* Method to close all running application on ledger device.
*
*/
async closeApps() {
await this.transport.send(0xb0, 0xa7, 0x00, 0x00);
}
/**
* Method to retrieve the name and version of the running application in ledger device.
*
* @returns An object contains appName and version.
*/
async getAppNameAndVersion() {
const response = await this.transport.send(0xb0, 0x01, 0x00, 0x00);
if (response[0] !== 1) {
throw new Error('Incorrect format return from getAppNameAndVersion.');
}
let i = 1;
const nameLength = response[i] ?? 0;
i += 1;
const appName = response
.slice(i, (i += nameLength))
.toString(this.transportEncoding);
const versionLength = response[i] ?? 0;
i += 1;
const version = response
.slice(i, (i += versionLength))
.toString(this.transportEncoding);
return {
appName,
version,
};
}
}
exports.MetaMaskLedgerHwAppEth = MetaMaskLedgerHwAppEth;
//# sourceMappingURL=ledger-hw-app.cjs.map