vue-tronlink/src/utils/help.js

Vue support for the TronLink browser extension

import {hexStr2byteArray} from 'code';
import {ADDRESS_PREFIX} from '../abi/base/Address';
import {
    getBase58CheckAddress,
    decodeBase58Address,
    byteArray2hexStr
} from './crypto';

export function hexStringToBase58(sHexString) {
    if (sHexString.length < 2 || (sHexString.length & 1) != 0)
        return '';

    const bytes = hexStr2byteArray(sHexString);
    return getBase58CheckAddress(bytes);
}

export function base58ToHexString(sBase58) {
    const bytes = decodeBase58Address(sBase58);
    return byteArray2hexStr(bytes);
}

export function hexStringToUtf8(hex) {
    const arr = hex.split("");
    let out = "";

    for (let i = 0; i < arr.length / 2; i++) {
        const tmp = `0x${arr[i * 2]}${arr[i * 2 + 1]}`;
        const charValue = String.fromCharCode(tmp);
        out += charValue
    }

    return out
}

export function stringUtf8tHex(str) {
    let val = "";

    for (let i = 0; i < str.length; i++) {
        if (val == "")
            val = str.charCodeAt(i).toString(16);
        else
            val += str.charCodeAt(i).toString(16);
    }

    return val
}

export function address2HexString(sHexAddress) {
    if (sHexAddress.length == 42 && sHexAddress.indexOf(ADDRESS_PREFIX) == 0)
        return sHexAddress;

    return base58ToHexString(sHexAddress)
}

export function hexString2Address(sAddress) {
    return hexStringToBase58(sAddress)
}

export function hexString2Utf8(sHexString) {
    return hexStringToUtf8(sHexString)
}

export function stringUtf8toHex(sUtf8) {
    return stringUtf8tHex(sUtf8)
}