@zondax/ledger-icp/dist/helper.js

Node API for the Internet Computer App (Ledger Nano S/X/S+/Stax/Flex)

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.processGetAddrResponse = processGetAddrResponse;
exports.processTokenRegistrySizeResponse = processTokenRegistrySizeResponse;
exports.processTokenInfoResponse = processTokenInfoResponse;
const ledger_js_1 = require("@zondax/ledger-js");
const consts_1 = require("./consts");
function processGetAddrResponse(response) {
    const errorCodeData = response.subarray(-2);
    const returnCode = errorCodeData[0] * 256 + errorCodeData[1];
    const publicKey = Buffer.from(response.subarray(0, consts_1.PKLEN));
    response = response.subarray(consts_1.PKLEN);
    const principal = Buffer.from(response.subarray(0, consts_1.PRINCIPAL_LEN));
    response = response.subarray(consts_1.PRINCIPAL_LEN);
    const address = Buffer.from(response.subarray(0, consts_1.ADDRLEN));
    response = response.subarray(consts_1.ADDRLEN);
    const principalText = Buffer.from(response.subarray(0, -2))
        .toString()
        .replace(/(.{5})/g, "$1-");
    return {
        publicKey,
        principal,
        address,
        principalText,
        returnCode,
        errorMessage: (0, ledger_js_1.errorCodeToString)(returnCode),
    };
}
function processTokenRegistrySizeResponse(response) {
    const errorCodeData = response.subarray(-2);
    const returnCode = errorCodeData[0] * 256 + errorCodeData[1];
    let errorMessage = (0, ledger_js_1.errorCodeToString)(returnCode);
    let RegistrySize = response[0];
    return {
        RegistrySize,
        returnCode,
        errorMessage,
    };
}
function processTokenInfoResponse(response) {
    const errorCodeData = response.subarray(-2);
    const returnCode = errorCodeData[0] * 256 + errorCodeData[1];
    let offset = 0;
    // Read canister ID
    const canisterIdLength = response[offset];
    offset += 1;
    const canisterId = response
        .slice(offset, offset + canisterIdLength)
        .toString("utf8");
    offset += canisterIdLength;
    // Read token symbol
    const symbolLength = response[offset];
    offset += 1;
    const tokenSymbol = response
        .slice(offset, offset + symbolLength)
        .toString("utf8");
    offset += symbolLength;
    // Read decimals (uint8)
    const decimals = response[offset];
    let tokenInfo = {
        canisterId,
        tokenSymbol,
        decimals,
    };
    return {
        tokenInfo,
        returnCode,
        errorMessage: (0, ledger_js_1.errorCodeToString)(returnCode),
    };
}
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