applte/utils/util.js

// import ICINLocker from "./ICINPakage/ICINLocker"
// const WXAPI = require('./request')
// import moment from "./moment"
// var bleall = require('./bleall');
// import {
//   BLE
// } from "./btls/ble";
const app = getApp();
// const emitter = app.globalData.emitter

function formatTime(date) {
    const year = date.getFullYear()
    const month = date.getMonth() + 1
    const day = date.getDate()
    const hour = date.getHours()
    const minute = date.getMinutes()
    const second = date.getSeconds()

    return [year, month, day].map(formatNumber).join('/') + ' ' + [hour, minute, second].map(formatNumber).join(':')
}

function formatNumber(n) {
    n = n.toString()
    return n[1] ? n : '0' + n
}



function uint8ArrayToString(fileData) {
    let dataString = "";
    for (let i = 0; i < fileData.length; i++) {
        dataString += String.fromCharCode(fileData[i]);
    }
    return dataString
}
function stringToUint8Array(string) {
    // if (options.stream) {
    //     throw new Error(`Failed to encode: the 'stream' option is unsupported.`);
    // }
    let pos = 0;
    const len = string.length;
    const out = [];
    let at = 0;  // output position
    let tlen = Math.max(32, len + (len >> 1) + 7);  // 1.5x size
    let target = new Uint8Array((tlen >> 3) << 3);  // ... but at 8 byte offset
    while (pos < len) {
        let value = string.charCodeAt(pos++);
        if (value >= 0xd800 && value <= 0xdbff) {
            // high surrogate
            if (pos < len) {
                const extra = string.charCodeAt(pos);
                if ((extra & 0xfc00) === 0xdc00) {
                    ++pos;
                    value = ((value & 0x3ff) << 10) + (extra & 0x3ff) + 0x10000;
                }
            }
            if (value >= 0xd800 && value <= 0xdbff) {
                continue;  // drop lone surrogate
            }
        }
        // expand the buffer if we couldn't write 4 bytes
        if (at + 4 > target.length) {
            tlen += 8;  // minimum extra
            tlen *= (1.0 + (pos / string.length) * 2);  // take 2x the remaining
            tlen = (tlen >> 3) << 3;  // 8 byte offset
            const update = new Uint8Array(tlen);
            update.set(target);
            target = update;
        }
        if ((value & 0xffffff80) === 0) {  // 1-byte
            target[at++] = value;  // ASCII
            continue;
        } else if ((value & 0xfffff800) === 0) {  // 2-byte
            target[at++] = ((value >> 6) & 0x1f) | 0xc0;
        } else if ((value & 0xffff0000) === 0) {  // 3-byte
            target[at++] = ((value >> 12) & 0x0f) | 0xe0;
            target[at++] = ((value >> 6) & 0x3f) | 0x80;
        } else if ((value & 0xffe00000) === 0) {  // 4-byte
            target[at++] = ((value >> 18) & 0x07) | 0xf0;
            target[at++] = ((value >> 12) & 0x3f) | 0x80;
            target[at++] = ((value >> 6) & 0x3f) | 0x80;
        } else {
            continue;
        }
        target[at++] = (value & 0x3f) | 0x80;
    }
    return target.subarray(0, at);;
}
// function stringToUint8Array(str) {
//     let arr = [];
//     for (let i = 0, j = str.length; i < j; ++i) {
//         arr.push(str.charCodeAt(i));
//     }
//     let tmpUint8Array = new Uint8Array(arr);
//     return tmpUint8Array
// }
// function strToBinary(str){
//     var result = [];
//     var list = str.split("");
//     for(var i=0;i<list.length;i++){
//         if(i != 0){
//             result.push(" ");
//         }
//         var item = list[i];
//         var binaryStr = item.charCodeAt().toString(2);
//         result.push(binartStr);
//     }   
//     return result.join("");
// }

function stringToBytesWithPadding(str, length, padding) {
    //try {
    // 使用指定的字符集将此字符串编码为byte序列并存到一个byte数组中
    var len = str.length;
    // var bb = str.charCodeAt();
    let bb = [];
    for (let i = 0, j = str.length; i < j; ++i) {
        bb.push(str[i].charCodeAt());
    }
    console.log(bb, 'bb')
    var bytes = new Array(length);
    for (var i = 0; i < length; i++) {
        if (i < len)
            bytes[i] = bb[i];
        else
            bytes[i] = padding;
    }
    return bytes;
}


function stringToUint8ArrayWithPadding(str, length, padding) {
    let arr = [];
    for (let i = 0, j = str.length; i < j; ++i) {
        arr.push(str.charCodeAt(i));
    }

    for (let i = str.length; i < length; i++) {
        arr.push(padding);
    }

    let tmpUint8Array = new Uint8Array(arr);
    return tmpUint8Array
}


// 进制转换
function dec2hex(str) {
    var dec = str.toString().split(""),
      sum = [],
      hex = [],
      i,
      s;
    while (dec.length) {
      s = 1 * dec.shift();
      for (i = 0; s || i < sum.length; i++) {
        s += (sum[i] || 0) * 10;
        sum[i] = s % 16;
        s = (s - sum[i]) / 16;
      }
    }
    while (sum.length) {
      hex.push(sum.pop().toString(16));
    }
    return hex.join("");
  }


// 微信官方给的ArrayBuffer转十六进制示例
function ab2hex(buffer) {
    let hexArr = Array.prototype.map.call(
        new Uint8Array(buffer),
        function (bit) {
            return ('00' + bit.toString(16)).slice(-2)
        }
    )
    return hexArr.join(',');
}

//转成可展会的文字
function hexCharCodeToStr(hexCharCodeStr) {
    let trimedStr = hexCharCodeStr.trim();
    let rawStr = trimedStr.substr(0, 2).toLowerCase() === '0x' ? trimedStr.substr(2) : trimedStr;
    let len = rawStr.length;
    let curCharCode;
    let resultStr = [];
    for (let i = 0; i < len; i = i + 2) {
        curCharCode = parseInt(rawStr.substr(i, 2), 16);
        resultStr.push(String.fromCharCode(curCharCode));
    }
    return resultStr.join('');
}

//转换成需要的格式
function buf2string(buffer) {
    let arr = Array.prototype.map.call(new Uint8Array(buffer), x => x)

    return arr.map((char, i) => {
        return String.fromCharCode(char);
    }).join('');
}

function decodeHexNibble(c) {
    if (c >= 48 && c <= 57) {
        return c - 48;
    } else if (c >= 65 && c <= 70) {
        return c - 65 + 10;
    } else {
        return c >= 97 && c <= 102 ? c - 97 + 10 : -1;
    }
}

function decodeHexByte(s, pos) {
    let hi = decodeHexNibble(s.charCodeAt(pos));
    let lo = decodeHexNibble(s.charCodeAt(pos + 1));
    return ((hi << 4) + lo);
}

function hexStringToBytesWithPadding(str, byteLen, padding) {
    let len = str.length
    let length = 2 * byteLen

    if (length >= len && (length & 1) == 0) {
        if (length == 0) {
            return [0];
        } else {
            let bytes = new Uint8Array(length >>> 1);

            for (let i = 0; i < len; i += 2) {
                bytes[i >>> 1] = decodeHexByte(str, i);
            }

            for (let i = 0; i < byteLen - len / 2; i++)
                bytes[len / 2 + i] = padding;

            return bytes;
        }
    } else
        return [0];
}


function timeStringToBytes(timeStr, timeLen) {
    let s = timeStr;
    if (s.length < timeLen) {
        let tmp = timeLen - s.length
        for (let i = 0; i < tmp; i++)
            s = "0" + s;
    } else
        s = timeStr.substr(s.length - timeLen, s.length);

    let start = 0
    let length = s.length

    if (length >= 0 && (length & 1) == 0) {
        if (length == 0) {
            return new byte[0];
        } else {
            let bytes = new Uint8Array(length >>> 1);

            for (let i = 0; i < length; i += 2) {
                bytes[i >>> 1] = decodeHexByte(s, start + i);
            }

            return bytes;
        }
    } else
        return [0];
}

function time40ToBytes(dt) {

    var cs = dt.substring(0, 4) + "/" + dt.substring(4, 6) + "/" + dt.substring(6, 8) + " " + dt.substring(8, 10) + ":" + dt.substring(10, 12) + ":" + dt.substring(12, 14);

    var milliTs = new Date(cs);
    var milliTs1 = milliTs.getTime()
    var secondTs = parseInt(milliTs1 / 1000)

    console.log(cs, milliTs1)

    console.log(secondTs)

    let ts = secondTs.toString(16)
    let t = timeStringToBytes(ts, 10)

    console.log(t)

    return t;
}

function strToBinary(str) {
    var result = [];
    var list = str.split("");
    var binaryStr = ''
    for (var i = 0; i < list.length; i++) {
        if (i != 0) {
            result.push(" ");
        }
        var item = list[i];
        binaryStr = item.charCodeAt().toString(2);
        result.push(binaryStr);
    }
    return result.join("");
}


//当前时间戳
function gettimestamp() {
    var timestamp = Date.parse(new Date());
    return timestamp / 1000
}

function gettimestamp1() {
    var timestamp = new Date().getTime()
    return timestamp
}
//随机生成N位数字(0到9) 获取随机数
function getRandomNumber(n) {
    var arr = new Array(n); //用于存放随机数
    var randomNumber = ''; //存放随机数
    for (i = 0; i < arr.length; i++)
        arr[i] = parseInt(Math.random() * 10);
    var flag = 0;
    for (i = 0; i < arr.length - 1; i++) {
        for (j = i + 1; j < arr.length; j++) {
            if (arr[i] == arr[j]) {
                flag = 1;
                break;
            }
        }
        if (flag) break;
    }
    for (var i = 0; i < arr.length; i++) {
        randomNumber += arr[i];
    }
    return randomNumber;
}

// 去重
function uniqueArray(array, key) {
    var result = [array[0]];
    for (var i = 1; i < array.length; i++) {
        var item = array[i];
        var repeat = false;
        for (var j = 0; j < result.length; j++) {
            if (item[key] == result[j][key]) {
                repeat = true;
                break;
            }
        }
        if (!repeat) {
            result.push(item);
        }
    }
    return result;
}



// 树形数据转化
function ztreeToElementTree(data, config) {
    var id = config.id || 'id' // 定义ztree数据存储id（自身的id）的key值，可以自定义但一般都是id、pid这种
    var pid = config.pid || 'pid' // 定义ztree数据存储pid（父id）的key值
    var children = config.children || 'children' // 定义生成的element tree存储子节点的key，可以在element中规定defaultProps: {children: 'children'}
    var idMap = {} // 将原始数据转化为以id为key的map
    var elementTree = [] // 输出的element tree数据
    data.forEach(item => {
        idMap[item.id] = item
    })
    data.forEach(item => {
        // debugger
        if (idMap[item.pid] != idMap[item.id] && idMap[item.pid]) { // 该item项有爸爸，放到对应的父节点下
            !idMap[item.pid].hasOwnProperty(children) && (idMap[item.pid][children] = [])
            idMap[item.pid][children].push(item)
        } else { // 根节点
            elementTree.push(item)
        }
    });
    return elementTree
}
/* 部分隐藏处理
** str 需要处理的字符串
** frontLen  保留的前几位
** endLen  保留的后几位
** cha  替换的字符串
*/
function plusXing(str, frontLen, endLen, cha) {
  let content = str.toString()
    var len = content.length - frontLen - endLen;
    var xing = '';
    for (var i = 0; i < len; i++) {
        xing += cha;
    }
    return content.substring(0, frontLen) + xing + content.substring(content.length - endLen);
};
function IntToBytesLittleEndian(number, length){
    var bytes = [];
    var i = 0;
    do {
    bytes[i++] = number & (255);
    number = number>>8;
    } while ( i < length )
    return bytes;
    // var bytes = [];
    // var i = length;
    // do {
    // bytes[--i] = number & (255);
    // number = number>>8;
    // } while (i)
    // return bytes;
}

function BytesToIntBigEndian(bytes){
    var val = 0;
    for (var i = bytes.length - 1; i >= 0; i--) {        
        val += bytes[i];    
        if (i != 0) {
            val = val << 8;
        }    
    }
    return val;
}

function dec2hex1(str) {
    var dec = str.toString().split(""),
        sum = [],
        hex = [],
        i,
        s;
    while (dec.length) {
        s = 1 * dec.shift();
        for (i = 0; s || i < sum.length; i++) {
            s += (sum[i] || 0) * 10;
            sum[i] = s % 16;
            s = (s - sum[i]) / 16;
        }
    }
    while (sum.length) {
        hex.push(sum.pop().toString(16));
    }
    var card = hex.join("")
    var zero = '00000000';
    var tmp = 8 - card.length;
    var clength = zero.substring(0, tmp) + card
    return clength;
}
/*函数节流*/
function throttle(fn, interval) {
    var enterTime = 0;//触发的时间
    var gapTime = interval || 300 ;//间隔时间，如果interval不传，则默认300ms
    return function() {
      var context = this;
      var backTime = new Date();//第一次函数return即触发的时间
      if (backTime - enterTime > gapTime) {
        fn.call(context,arguments);
        enterTime = backTime;//赋值给第一次触发的时间，这样就保存了第二次触发的时间
      }
    };
  }
  
  /*函数防抖*/
  function debounce(fn, interval) {
    var timer;
    var gapTime = interval || 1000;//间隔时间，如果interval不传，则默认1000ms
    return function() {
      clearTimeout(timer);
      var context = this;
      var args = arguments;//保存此处的arguments，因为setTimeout是全局的，arguments不是防抖函数需要的。
      timer = setTimeout(function() {
        fn.call(context,args);
      }, gapTime);
    };
  }
  function findIndexArray(data,id,indexArray){
    let arr = Array.from(indexArray);
      for(let i=0,len=data.length;i<len;i++){
          arr.push(data[i].name);
          if(data[i].id===id){
              return arr
          }
          let children=data[i].children;
          if(children&&children.length){
              let result=this.findIndexArray(children,id,arr);
              if(result) return result
          }
          arr.pop()
      }
      return false
}
var pako = require('pako');
var CryptoJS = require("crypto-js");
var md5 = require("md5");
function decrypt(word, keyStr) {
      let key = CryptoJS.enc.Utf8.parse(keyStr);
      let decrypt = CryptoJS.AES.decrypt(word, key, {
        mode: CryptoJS.mode.ECB,
        padding: CryptoJS.pad.Pkcs7
      });
       return CryptoJS.enc.Utf8.stringify(decrypt).toString()
 }
 function zlib_unzip(info) {
   var key=md5(String(info.currentTime)+"mdmdmdmdmdvsololololol")
   let b = info.list.split(',').map(function(x) {
     return parseInt(x);
   });
   let c = pako.inflate(b, {
     to: "string"
   });
   let e = decrypt(c,key)
   return JSON.parse(e)
 }
 
 function  searchParaProcess(obj) {
   var myObj = new Object();
   for (var key in obj) {
     if (obj[key] != "" && obj[key] != 'Invalid date' && obj[key] != null) {
       myObj[key] = obj[key]
     }
   }
   return JSON.stringify(myObj);
 }

module.exports = {
    // bluetoothUnlocking,
    // bluetoothConnectivity,
    // bluetoothOperation_ZH,
    decrypt,
    searchParaProcess,
    zlib_unzip,
    findIndexArray,
    throttle,
    debounce,
    IntToBytesLittleEndian,
    BytesToIntBigEndian,
    dec2hex,
    dec2hex1,
    plusXing,
    ztreeToElementTree,
    formatTime: formatTime,
    uint8ArrayToString: uint8ArrayToString,
    stringToUint8Array: stringToUint8Array,
    stringToUint8ArrayWithPadding: stringToUint8ArrayWithPadding,
    ab2hex: ab2hex,
    hexCharCodeToStr,
    hexCharCodeToStr: buf2string,
    decodeHexNibble,
    decodeHexNibble: decodeHexByte,
    hexStringToBytesWithPadding: hexStringToBytesWithPadding,
    timeStringToBytes: timeStringToBytes,
    time40ToBytes: time40ToBytes,
    gettimestamp,
    gettimestamp1,
    getRandomNumber,
    uniqueArray,
    strToBinary,
    stringToBytesWithPadding
}