ecpay-einvoice-ts/src/utils/ecUtils.js

ECPay e-invoice SDK for TypeScript

"use strict";
// CBC , AES-128 , PKCS7
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const crypto_1 = __importDefault(require("crypto"));
const utils = (init) => {
    const encrypt = (data) => {
        if (typeof data !== 'object')
            throw new Error('data must be an object');
        const jsonStr = JSON.stringify(data);
        const urlEncode = encodeURIComponent(jsonStr);
        // convert to dotnet url encode
        const urlEncodeDotNet = urlEncode.replace(/%[0-9a-f]{2}/g, (match) => {
            switch (match) {
                case '%20':
                    return '+';
                case '%2d':
                    return '-';
                case '%2e':
                    return '.';
                case '%5f':
                    return '_';
                case '%2a':
                    return '*';
                case '%28':
                    return '(';
                case '%29':
                    return ')';
                case '%21':
                    return '!';
                default:
                    return match;
            }
        });
        const cipher = crypto_1.default.createCipheriv('aes-128-cbc', init.HashKey, init.HashIV);
        let encrypted = cipher.update(urlEncodeDotNet, 'utf8', 'hex');
        encrypted += cipher.final('hex');
        return Buffer.from(encrypted, 'hex').toString('base64');
    };
    const decrypt = (data) => {
        const decipher = crypto_1.default.createDecipheriv('aes-128-cbc', init.HashKey, init.HashIV);
        let decrypted = decipher.update(data, 'base64', 'utf8');
        decrypted += decipher.final('utf8');
        return decodeURIComponent(decrypted);
    };
    return {
        encode: encrypt,
        decode: decrypt
    };
};
exports.default = utils;