@iot9x.com/ipc-utils/lib/conversionUtil.js

九星云、九星小程序、九星配置工具所共用的库方法

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.PackageType = void 0;
const iconv_lite_1 = require("iconv-lite");
var PackageType;
(function (PackageType) {
    /** 纯文本 */
    PackageType[PackageType["PlainText"] = 1] = "PlainText";
    /** 16进制 */
    PackageType[PackageType["Hex"] = 2] = "Hex";
    /** json */
    PackageType[PackageType["JSON"] = 3] = "JSON";
    /** base64 */
    PackageType[PackageType["Base64"] = 4] = "Base64";
})(PackageType || (exports.PackageType = PackageType = {}));
/**
 * 进制转换
 * @param encoding 字符集: utf8, gb2312, cesu8...
 * @returns { bufferToHex, hexToStr, strToHex, onHexSendChange, decodePackage, encodePackage }
 */
function useConversionUtil(encoding) {
    /**
     * 规范化编码名称:剥离所有非字母数字字符和附加年份。
     * @returns { string }
     */
    // const _canonicalizeEncoding = () =>
    const _encoding = encoding.toLowerCase().replace(/:\d{4}$|[^0-9a-z]/g, '');
    /**
     * Buffer转HEX字符串
     * @param buffer Buffer数据
     * @returns { string }
     */
    const bufferToHex = (buffer) => {
        const array = [];
        buffer.forEach((item) => {
            array.push(item.toString(16).padStart(2, '0'));
        });
        return array.join(' ');
    };
    /**
     * hex字符串转dec字符串
     * @param str Hex字符串
     * @returns { string }
     */
    const hexToStr = (hexStr) => {
        return (0, iconv_lite_1.decode)(Buffer.from(hexStr
            .replaceAll(' ', '')
            .match(/\w{2}/g)
            .map((item) => parseInt(item, 16))), _encoding);
    };
    /**
     * dec字符串转hex字符串
     * @param hex hex字符串
     * @param options 配置项
     * @returns { string }
     */
    const strToHex = (hex, options = {}) => {
        const { needSpace } = options;
        const buffer = (0, iconv_lite_1.encode)(hex, _encoding);
        const array = [];
        buffer.forEach((item) => {
            array.push(item.toString(16).padStart(2, '0'));
        });
        return needSpace ? array.join(' ') : array.join('');
    };
    /**
     * 输入框改变
     * @param value 输入值
     * @param isHex 是否是HEX
     * @returns { string }
     */
    const onHexSendChange = (value, isHex) => {
        if (!value)
            return '';
        if (isHex)
            return strToHex(value);
        return hexToStr(value);
    };
    /**
     * 解析带有类型前缀的字符串
     * @param str 字符串
     * @returns { [packageType, string] }
     */
    const decodePackage = (str) => {
        if (!str)
            return [PackageType.PlainText, ''];
        const packageType = parseInt(str.slice(0, 1), 10);
        return [packageType, packageType === PackageType.Hex ? str.slice(1) : hexToStr(str.slice(1))];
    };
    /**
     * 组合带有类型前缀的字符串
     * @param value 字符串或者对象
     * @param type 类型
     * @returns { string }
     */
    const encodePackage = (value, type = PackageType.PlainText) => {
        if (!value)
            return '';
        if (type === PackageType.Hex)
            return type + value.replaceAll(' ', '');
        if (type === PackageType.JSON)
            return type + strToHex(JSON.stringify(JSON.parse(value)));
        return type + strToHex(value);
    };
    return {
        bufferToHex,
        hexToStr,
        strToHex,
        onHexSendChange,
        decodePackage,
        encodePackage,
    };
}
exports.default = useConversionUtil;