bankcard-reader/dist/index.cjs.js

高拍仪读取银行卡

/**
 * bankcard-reader
 * 高拍仪读取银行卡
 *
 * @version 1.0.1
 * @author waiting
 * @license MIT
 * @link https://github.com/waitingsong/node-bankcard-reader#readme
 */

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var win32Def = require('win32-def');
var bankcardReaderBase = require('@waiting/bankcard-reader-base');
var log = require('@waiting/log');
var sharedCore = require('@waiting/shared-core');
var ffi = require('ffi');

const dllFuncs = {
    JC_GetBankNumber: [win32Def.DTypes.INT, [win32Def.DTypes.POINT]],
    FJ_GetBankNumber: [win32Def.DTypes.INT, [win32Def.DTypes.POINT]],
};

function findDeviceList(deviceOpts, apib) {
    const arr = [];
    // 不用打开端口，驱动自动查找
    const device = {
        apib,
        deviceOpts,
        inUse: false,
        openPort: 0,
    };

    arr.push(device);
    return arr
}
function readFJ(device) {
    const buf = Buffer.alloc(64);

    device.apib.FJ_GetBankNumber(buf);
    return parseBuffer(buf)
}
function readJC(device) {
    const buf = Buffer.alloc(64);

    device.apib.JC_GetBankNumber(buf);
    return parseBuffer(buf)
}
function parseBuffer(buf) {
    return buf.toString('utf8').trim().replace(/\0+$/g, '')
}

async function init(options) {
    const deviceOpts = bankcardReaderBase.parseDeviceOpts(options);
    const { debug } = deviceOpts;

    if (debug) {
        log.info(deviceOpts);
    }
    await sharedCore.validateDllFile(deviceOpts.dllTxt);
    if (deviceOpts.dllSearchPath) {
        sharedCore.setPathDirectory(deviceOpts.dllSearchPath);
    }
    const apib = ffi.Library(deviceOpts.dllTxt, dllFuncs);
    const devices = findDeviceList(deviceOpts, apib);

    if (devices && devices.length) {
        return devices
    }
    else {
        throw new Error('未找到读卡设备')
    }
}
/** Read card data */
function read(device) {
    const ret = {
        cardno: '',
    };

    try {
        switch (device.deviceOpts.cardType) {
            case 'fj':
                ret.cardno = readFJ(device);
                break
            case 'jc':
                ret.cardno = readJC(device);
                break
            case 'auto':
                ret.cardno = readFJ(device) || readJC(device) || '';
                break
            default:
                throw new Error('cardType invalid, Should be auto|fj|jc ')
        }
    }
    catch (_a) {
        ret.cardno = '';
    }
    return Promise.resolve(ret)
}

exports.initialOpts = bankcardReaderBase.initialOpts;
exports.init = init;
exports.read = read;