js-databox/cjs/utils/common.js

databox & metabox

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getToAccountIdentifier = exports.getUint8ArrayFromHex = exports.ArrayToHexString = void 0;
const buffer_1 = require("buffer");
const candid_1 = require("@dfinity/candid");
const getCrc_1 = require("@dfinity/principal/lib/cjs/utils/getCrc");
const SHA1 = __importStar(require("@dfinity/principal/lib/cjs/utils/sha224"));
const ArrayToHexString = (byteArray) => {
    return Array.from(byteArray, function (byte) {
        return ("0" + (byte & 0xff).toString(16)).slice(-2);
    }).join("");
};
exports.ArrayToHexString = ArrayToHexString;
const getUint8ArrayFromHex = (str) => {
    return Uint8Array.from(buffer_1.Buffer.from(str, "hex"));
};
exports.getUint8ArrayFromHex = getUint8ArrayFromHex;
const getToAccountIdentifier = (principal, s) => {
    const padding = new buffer_1.Buffer("\x0Aaccount-id");
    const array = new Uint8Array([
        ...padding,
        ...principal.toUint8Array(),
        ...getPrincipalSubAccountArray(s),
    ]);
    const hash = SHA1.sha224(array);
    const checksum = to32bits((0, getCrc_1.getCrc32)(hash));
    const array2 = new Uint8Array([...checksum, ...hash]);
    return (0, candid_1.toHexString)(array2);
};
exports.getToAccountIdentifier = getToAccountIdentifier;
const getPrincipalSubAccountArray = (principal) => {
    const p = Array.from(principal.toUint8Array());
    let tmp = Array(1).fill(p.length).concat(p);
    while (tmp.length < 32)
        tmp.push(0);
    return tmp;
};
const to32bits = (num) => {
    let b = new ArrayBuffer(4);
    new DataView(b).setUint32(0, num);
    return Array.from(new Uint8Array(b));
};