@flarenetwork/flare-stake-tool/dist/src/ledger/ethereum.js

Utilities for staking on the Flare network

"use strict";
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    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.isEthereumApp = isEthereumApp;
exports.getPublicKey = getPublicKey;
exports.getCAddress = getCAddress;
exports.getPAddress = getPAddress;
exports.signPersonalMessage = signPersonalMessage;
exports.signEvmTransaction = signEvmTransaction;
const hw_app_eth_1 = __importStar(require("@ledgerhq/hw-app-eth"));
const hw_transport_node_hid_1 = __importDefault(require("@ledgerhq/hw-transport-node-hid"));
const pubk = __importStar(require("../flare/pubk"));
const utils = __importStar(require("../utils"));
async function isEthereumApp() {
    let eth = false;
    await _connect(async (app) => {
        try {
            let info = await app.getAppConfiguration();
            console.log(info);
            eth = true;
        }
        catch (e) {
            console.log(e);
        }
    });
    return eth;
}
async function getPublicKey(bip44Path) {
    let response;
    await _connect(async (app) => {
        response = await app.getAddress(bip44Path);
    });
    if (!response || !response.publicKey) {
        throw new Error('Failed to obtain public key from ledger');
    }
    return pubk.normalizePublicKey(response.publicKey);
}
async function getCAddress(bip44Path, display) {
    let response;
    await _connect(async (app) => {
        response = await app.getAddress(bip44Path, display);
    });
    if (!response || !response.address) {
        throw new Error('Failed to obtain C-chain address from ledger');
    }
    return response.address;
}
async function getPAddress(bip44Path, hrp, display) {
    let response;
    await _connect(async (app) => {
        response = await app.getAddress(bip44Path, display);
    });
    if (!response || !response.publicKey) {
        throw new Error('Failed to obtain P-chain address from ledger');
    }
    return pubk.publicKeyToPAddress(hrp, response.publicKey);
}
async function signPersonalMessage(bip44Path, message) {
    let messageHex = utils.toHex(Buffer.from(message, 'utf-8'), false);
    let response;
    await _connect(async (app) => {
        response = await app.signPersonalMessage(bip44Path, messageHex);
    });
    if (!response) {
        throw new Error('Failed to sign ETH personal message');
    }
    if (!response.r || !response.s || !response.v) {
        throw new Error('Failed to get signature from ledger device');
    }
    let r = Buffer.from(utils.toHex(response.r, false), 'hex');
    let s = Buffer.from(utils.toHex(response.s, false), 'hex');
    let v = Buffer.from(response.v.toString(16), 'hex');
    let signature = utils.toHex(Buffer.concat([r, s, v]), false);
    return signature;
}
async function signEvmTransaction(bip44Path, txHex) {
    let rawTx = utils.toHex(txHex, false);
    let resolution = await hw_app_eth_1.ledgerService.resolveTransaction(rawTx, {}, {});
    let response;
    await _connect(async (app) => {
        response = await app.signTransaction(bip44Path, rawTx, resolution);
    });
    if (!response) {
        throw new Error('Failed to sign EVM transaction on ledger');
    }
    if (!response.r || !response.s || !response.v) {
        throw new Error('Failed to get signature from ledger device');
    }
    let r = Buffer.from(utils.toHex(response.r, false), 'hex');
    let s = Buffer.from(utils.toHex(response.s, false), 'hex');
    let recoveryParam = parseInt(utils.toHex(response.v, false), 16);
    if (recoveryParam == 0 || recoveryParam == 1) {
        recoveryParam += 27;
    }
    else if (recoveryParam > 28) {
        recoveryParam = recoveryParam % 2 == 1 ? 27 : 28;
    }
    let v = Buffer.from(recoveryParam.toString(16), 'hex');
    let signature = utils.toHex(Buffer.concat([r, s, v]), false);
    return signature;
}
async function _connect(execute) {
    let eth;
    try {
        let transport = await hw_transport_node_hid_1.default.open(undefined);
        eth = new hw_app_eth_1.default(transport);
        await execute(eth);
    }
    finally {
        if (eth && eth.transport) {
            await eth.transport.close();
        }
    }
}
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