@ledgerhq/coin-casper/lib/bridge/signOperation.js

Ledger Casper integration

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.buildSignOperation = void 0;
const rxjs_1 = require("rxjs");
const logs_1 = require("@ledgerhq/logs");
const addresses_1 = require("../bridge/bridgeHelpers/addresses");
const txn_1 = require("../bridge/bridgeHelpers/txn");
const buildOptimisticOperation_1 = require("./buildOptimisticOperation");
const casper_js_sdk_1 = require("casper-js-sdk");
const buildSignOperation = (signerContext) => ({ account, transaction, deviceId }) => new rxjs_1.Observable(o => {
    async function main() {
        // log("debug", "[signOperation] start fn");
        const { recipient, amount, fees, transferId } = transaction;
        const { address, derivationPath } = (0, addresses_1.getAddress)(account);
        const casperTx = await (0, txn_1.createNewTransaction)(address, recipient, amount, fees, transferId);
        // Serialize tx
        const txBytes = casperTx.toBytes();
        (0, logs_1.log)("debug", `[signOperation] serialized transaction: [${txBytes.toString()}]`);
        o.next({
            type: "device-signature-requested",
        });
        // Sign by device
        const { r } = await signerContext(deviceId, async (signer) => {
            const r = await signer.sign(derivationPath, Buffer.from(txBytes));
            return { r };
        });
        o.next({
            type: "device-signature-granted",
        });
        // signature verification
        const txHash = casperTx.hash.getHash()?.toHex() ?? "";
        const signature = Buffer.concat([Buffer.from([casper_js_sdk_1.KeyAlgorithm.SECP256K1]), r.signatureRS]);
        const operation = (0, buildOptimisticOperation_1.buildOptimisticOperation)(account, transaction, txHash);
        const txJson = casperTx.toJSON();
        o.next({
            type: "signed",
            signedOperation: {
                operation,
                signature: Buffer.from(signature).toString("hex"),
                rawData: {
                    tx: JSON.stringify(txJson),
                },
            },
        });
    }
    main().then(() => o.complete(), e => o.error(e));
});
exports.buildSignOperation = buildSignOperation;
//# sourceMappingURL=signOperation.js.map