@luoxiao123/bankcard-reader-start/dist/lib/device.js

实达三合一读卡器 读银行卡

import { info } from '@waiting/log'
export function connectDevice(device) {
    if (device && device.inUse) {
        device.deviceOpts.debug && info('Cautiton: connectDevice() device in use')
        return false
    }
    const openRet = device.apib.star_Open(0, 9600, '0')

    device.deviceOpts.debug && info(`open com ret: ${openRet}`)
    return openRet === 0 ? true : false
}
export function disconnectDevice(device) {
    const closeRet = device.apib.star_Close()

    device.deviceOpts.debug && info(`disconnectDevice at port: ${device.openPort}, ret: ${closeRet} `)
    device.inUse = false
    return closeRet === 0 ? true : false
}
/** 检查端口是否已打开 */
export function isDevicePortOpen(device) {
    const szDevInfo = Buffer.alloc(64)
    const iInfoLen = Buffer.alloc(64)
    const ret = device.apib.star_GetDevInfo(szDevInfo, iInfoLen) // 使用获取设备信息接口来检查是否连接成功

    device.deviceOpts.debug && info(`isPortOpen: ${ret}`)
    info(`设备信息: ${szDevInfo}`)
    info(`设备信息长度: ${iInfoLen}`)
    return ret === 0 ? true : false
}
export function findDeviceList(deviceOpts, apib) {
    const arr = []

    info('开始获取实达设备列表')
    const device = findDevice(deviceOpts, apib)

    arr.push(device)
    return arr
}
export function findDevice(deviceOpts, apib) {
    const device = {
        apib,
        deviceOpts,
        inUse: false,
        openPort: 0,
    }
    const openRet = connectDevice(device)

    if (openRet && !isDevicePortOpen(device)) {
        device.inUse = true
        device.openPort = 0
        deviceOpts.debug && info(`Found device at serial/usb port: ${0}`)
        disconnectDevice(device)
    }
    return device
}
/** 读取银行卡  磁条卡  */
export function readMC(device) {
    const szCardNo = Buffer.alloc(64)
    const iCardNoLen = Buffer.alloc(64)

    if (device.deviceOpts.debug) {
        info('starting reading 磁条卡 ...')
    }
    const code = device.apib.star_ReadMagCardNo(23, 0, szCardNo, iCardNoLen, 5)
    let cardno = ''

    if (code === 0) {
        // 卡号可能重复数字  ...1234557\u0000557
        cardno = parseBuffer(szCardNo)
    }
    if (device.deviceOpts.debug) {
        info(`readDataBase code: ${code}`)
        info(`readDataBase bufLen: ${szCardNo.byteLength}`)
        info('readDataBase buf: ')
        info(szCardNo)
        info(`readDataBase cardno: ${cardno}`)
    }
    return cardno
}
/** 读取银行卡 支持 接触、非接触 IC卡 */
export function readIC(device) {
    const buf = Buffer.alloc(64)

    if (device.deviceOpts.debug) {
        info('starting reading IC卡 ...')
    }
    const code = device.apib.star_ICGetInfo(2, Buffer.from('124|A'), buf, 1)
    let cardno = ''

    if (code === 0) {
        // 卡号可能重复数字  ...1234557\u0000557
        const bufstr = parseBuffer(buf)

        cardno = bufstr ? bufstr.substring(4) : ''
    }
    if (device.deviceOpts.debug) {
        info(`readDataBase code: ${code}`)
        info(`readDataBase bufLen: ${buf.byteLength}`)
        info('readDataBase buf: ')
        info(buf)
        info(`readDataBase cardno: ${cardno}`)
    }
    return cardno
}
/** 转换Buffer */
export function parseBuffer(buf) {
    const bufstr = buf.toString('utf8').trim().replace(/\0+$/g, '')

    return bufstr
}