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合肥市抢口罩脚本.md

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var http = require("http"); //http 请求

// ISV验证
function isvData(url) {
  var time1 = new Date().getTime(); //时间毫秒数
  var time = (time1 + "").slice(0, -3); //截取前十位
  var app_key = "123"; //密钥
  //公共参数
  var publicParm = {
    app_id: "app_weixin",
    timestamp: time,
    version: 1
  };
  var parmStr = sortParm(Object.assign(publicParm));
  //业务参数
  var urlParm = {};
  var urlParmArr = url.split("?");
  var urlParmStr = "";
  if (urlParmArr.length > 1) {
    urlParmStr = urlParmArr[1];
  }
  urlParmArr = urlParmStr.split("&");
  for (var i = 0; i < urlParmArr.length; i++) {
    var kv = urlParmArr[i].split("=");
    var obj = {};
    obj[kv[0]] = kv[1];
    urlParm = Object.assign(urlParm, obj);
  }
  //所有参数集合
  var init = Object.assign(publicParm, urlParm);
  // 1、序列化参数
  var baseString = sortParm(init);
  //2、使用密钥(app_key)对待签字符串baseString进行HmacMD5数字签名
  var sign = hex_hmac_md5(app_key, baseString);
  //3、小写处理签名字符串
  sign = sign.toLowerCase();
  //4、拼接新的url
  if (url.indexOf("?") != -1) {
    url += "&" + parmStr + "&sign=" + sign;
  } else {
    url += "?" + parmStr + "&sign=" + sign;
  }
  return url;
}

//字典序参数
function sortParm(init) {
  var pro = []; //声明一个空数组
  var $i = 0;
  for (var key in init) {
    //取出对象里面的键  添加到数组中
    pro[$i] = key;
    $i++;
  }
  pro.sort(); //进行字典排序
  // 根据排序拼接baseString用于加密
  var baseString = "";
  var $j = 0;
  for (var tmp in init) {
    baseString += pro[$j] + "=" + init[pro[$j]] + "&";
    $j++;
  }
  baseString = baseString.slice(0, -1); //去除最后一位&
  return baseString;
}
/**
 * md5加密
 */
var hexcase = 0;
var b64pad = "";
var chrsz = 8;
function hex_md5(s) {
  return binl2hex(core_md5(str2binl(s), s.length * chrsz));
}
function b64_md5(s) {
  return binl2b64(core_md5(str2binl(s), s.length * chrsz));
}
function hex_hmac_md5(key, data) {
  return binl2hex(core_hmac_md5(key, data));
}
function b64_hmac_md5(key, data) {
  return binl2b64(core_hmac_md5(key, data));
}
function calcMD5(s) {
  return binl2hex(core_md5(str2binl(s), s.length * chrsz));
}

function core_md5(x, len) {
  x[len >> 5] |= 0x80 << len % 32;
  x[(((len + 64) >>> 9) << 4) + 14] = len;
  var a = 1732584193;
  var b = -271733879;
  var c = -1732584194;
  var d = 271733878;
  for (var i = 0; i < x.length; i += 16) {
    var olda = a;
    var oldb = b;
    var oldc = c;
    var oldd = d;

    a = md5_ff(a, b, c, d, x[i + 0], 7, -680876936);
    d = md5_ff(d, a, b, c, x[i + 1], 12, -389564586);
    c = md5_ff(c, d, a, b, x[i + 2], 17, 606105819);
    b = md5_ff(b, c, d, a, x[i + 3], 22, -1044525330);
    a = md5_ff(a, b, c, d, x[i + 4], 7, -176418897);
    d = md5_ff(d, a, b, c, x[i + 5], 12, 1200080426);
    c = md5_ff(c, d, a, b, x[i + 6], 17, -1473231341);
    b = md5_ff(b, c, d, a, x[i + 7], 22, -45705983);
    a = md5_ff(a, b, c, d, x[i + 8], 7, 1770035416);
    d = md5_ff(d, a, b, c, x[i + 9], 12, -1958414417);
    c = md5_ff(c, d, a, b, x[i + 10], 17, -42063);
    b = md5_ff(b, c, d, a, x[i + 11], 22, -1990404162);
    a = md5_ff(a, b, c, d, x[i + 12], 7, 1804603682);
    d = md5_ff(d, a, b, c, x[i + 13], 12, -40341101);
    c = md5_ff(c, d, a, b, x[i + 14], 17, -1502002290);
    b = md5_ff(b, c, d, a, x[i + 15], 22, 1236535329);
    a = md5_gg(a, b, c, d, x[i + 1], 5, -165796510);
    d = md5_gg(d, a, b, c, x[i + 6], 9, -1069501632);
    c = md5_gg(c, d, a, b, x[i + 11], 14, 643717713);
    b = md5_gg(b, c, d, a, x[i + 0], 20, -373897302);
    a = md5_gg(a, b, c, d, x[i + 5], 5, -701558691);
    d = md5_gg(d, a, b, c, x[i + 10], 9, 38016083);
    c = md5_gg(c, d, a, b, x[i + 15], 14, -660478335);
    b = md5_gg(b, c, d, a, x[i + 4], 20, -405537848);
    a = md5_gg(a, b, c, d, x[i + 9], 5, 568446438);
    d = md5_gg(d, a, b, c, x[i + 14], 9, -1019803690);
    c = md5_gg(c, d, a, b, x[i + 3], 14, -187363961);
    b = md5_gg(b, c, d, a, x[i + 8], 20, 1163531501);
    a = md5_gg(a, b, c, d, x[i + 13], 5, -1444681467);
    d = md5_gg(d, a, b, c, x[i + 2], 9, -51403784);
    c = md5_gg(c, d, a, b, x[i + 7], 14, 1735328473);
    b = md5_gg(b, c, d, a, x[i + 12], 20, -1926607734);
    a = md5_hh(a, b, c, d, x[i + 5], 4, -378558);
    d = md5_hh(d, a, b, c, x[i + 8], 11, -2022574463);
    c = md5_hh(c, d, a, b, x[i + 11], 16, 1839030562);
    b = md5_hh(b, c, d, a, x[i + 14], 23, -35309556);
    a = md5_hh(a, b, c, d, x[i + 1], 4, -1530992060);
    d = md5_hh(d, a, b, c, x[i + 4], 11, 1272893353);
    c = md5_hh(c, d, a, b, x[i + 7], 16, -155497632);
    b = md5_hh(b, c, d, a, x[i + 10], 23, -1094730640);
    a = md5_hh(a, b, c, d, x[i + 13], 4, 681279174);
    d = md5_hh(d, a, b, c, x[i + 0], 11, -358537222);
    c = md5_hh(c, d, a, b, x[i + 3], 16, -722521979);
    b = md5_hh(b, c, d, a, x[i + 6], 23, 76029189);
    a = md5_hh(a, b, c, d, x[i + 9], 4, -640364487);
    d = md5_hh(d, a, b, c, x[i + 12], 11, -421815835);
    c = md5_hh(c, d, a, b, x[i + 15], 16, 530742520);
    b = md5_hh(b, c, d, a, x[i + 2], 23, -995338651);
    a = md5_ii(a, b, c, d, x[i + 0], 6, -198630844);
    d = md5_ii(d, a, b, c, x[i + 7], 10, 1126891415);
    c = md5_ii(c, d, a, b, x[i + 14], 15, -1416354905);
    b = md5_ii(b, c, d, a, x[i + 5], 21, -57434055);
    a = md5_ii(a, b, c, d, x[i + 12], 6, 1700485571);
    d = md5_ii(d, a, b, c, x[i + 3], 10, -1894986606);
    c = md5_ii(c, d, a, b, x[i + 10], 15, -1051523);
    b = md5_ii(b, c, d, a, x[i + 1], 21, -2054922799);
    a = md5_ii(a, b, c, d, x[i + 8], 6, 1873313359);
    d = md5_ii(d, a, b, c, x[i + 15], 10, -30611744);
    c = md5_ii(c, d, a, b, x[i + 6], 15, -1560198380);
    b = md5_ii(b, c, d, a, x[i + 13], 21, 1309151649);
    a = md5_ii(a, b, c, d, x[i + 4], 6, -145523070);
    d = md5_ii(d, a, b, c, x[i + 11], 10, -1120210379);
    c = md5_ii(c, d, a, b, x[i + 2], 15, 718787259);
    b = md5_ii(b, c, d, a, x[i + 9], 21, -343485551);

    a = safe_add(a, olda);
    b = safe_add(b, oldb);
    c = safe_add(c, oldc);
    d = safe_add(d, oldd);
  }
  return Array(a, b, c, d);
}

function md5_cmn(q, a, b, x, s, t) {
  return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b);
}
function md5_ff(a, b, c, d, x, s, t) {
  return md5_cmn((b & c) | (~b & d), a, b, x, s, t);
}
function md5_gg(a, b, c, d, x, s, t) {
  return md5_cmn((b & d) | (c & ~d), a, b, x, s, t);
}
function md5_hh(a, b, c, d, x, s, t) {
  return md5_cmn(b ^ c ^ d, a, b, x, s, t);
}
function md5_ii(a, b, c, d, x, s, t) {
  return md5_cmn(c ^ (b | ~d), a, b, x, s, t);
}

function core_hmac_md5(key, data) {
  var bkey = str2binl(key);
  if (bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz);

  var ipad = Array(16),
    opad = Array(16);
  for (var i = 0; i < 16; i++) {
    ipad[i] = bkey[i] ^ 0x36363636;
    opad[i] = bkey[i] ^ 0x5c5c5c5c;
  }

  var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz);
  return core_md5(opad.concat(hash), 512 + 128);
}

function safe_add(x, y) {
  var lsw = (x & 0xffff) + (y & 0xffff);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return (msw << 16) | (lsw & 0xffff);
}

function bit_rol(num, cnt) {
  return (num << cnt) | (num >>> (32 - cnt));
}

function str2binl(str) {
  var bin = Array();
  var mask = (1 << chrsz) - 1;
  for (var i = 0; i < str.length * chrsz; i += chrsz)
    bin[i >> 5] |= (str.charCodeAt(i / chrsz) & mask) << i % 32;
  return bin;
}

function binl2hex(binarray) {
  var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
  var str = "";
  for (var i = 0; i < binarray.length * 4; i++) {
    str +=
      hex_tab.charAt((binarray[i >> 2] >> ((i % 4) * 8 + 4)) & 0xf) +
      hex_tab.charAt((binarray[i >> 2] >> ((i % 4) * 8)) & 0xf);
  }
  return str;
}

function binl2b64(binarray) {
  var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
  var str = "";
  for (var i = 0; i < binarray.length * 4; i += 3) {
    var triplet =
      (((binarray[i >> 2] >> (8 * (i % 4))) & 0xff) << 16) |
      (((binarray[(i + 1) >> 2] >> (8 * ((i + 1) % 4))) & 0xff) << 8) |
      ((binarray[(i + 2) >> 2] >> (8 * ((i + 2) % 4))) & 0xff);
    for (var j = 0; j < 4; j++) {
      if (i * 8 + j * 6 > binarray.length * 32) str += b64pad;
      else str += tab.charAt((triplet >> (6 * (3 - j))) & 0x3f);
    }
  }
  return str;
}

function request(type, path, param, callback) {
  var options = {
    encoding: null,
    hostname: "kzgm.bbshjz.cn",
    port: 8000, //端口号 https默认端口 443， http默认的端口号是80
    path: path,
    method: type,
    headers: {
      Accept: "application/json, text/javascript, */*; q=0.01",
      // 去除gzip
      //   "Accept-Encoding": "gzip, deflate",
      "Accept-Language": "zh-CN,zh;q=0.9",
      Connection: "keep-alive",
      Host: "kzgm.bbshjz.cn:8000",
      "Content-Type": "application/json;charset=UTF-8",
      "User-Agent":
        "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Mobile Safari/537.36",
      "X-Requested-With": "XMLHttpRequest"
    } //伪造请求头
  };

  var req = http.request(options, function(res) {
    var json = ""; //定义json变量来接收服务器传来的数据
    console.log(res.statusCode);
    //res.on方法监听数据返回这一过程，"data"参数表示数数据接收的过程中，数据是一点点返回回来的，这里的chunk代表着一条条数据
    res.on("data", function(chunk) {
      json += chunk; //json由一条条数据拼接而成
    });
    //"end"是监听数据返回结束，callback（json）利用回调传参的方式传给后台结果再返回给前台
    res.on("end", function() {
      callback(json);
    });
  });

  req.on("error", function() {
    console.log("error");
  });
  //这是前台参数的一个样式，这里的参数param由后台的路由模块传过来，而后台的路由模块参数是前台传来的
  //    var obj = {
  //        query: '{"function":"newest","module":"zdm"}',
  //        client: '{"gender":"0"}',
  //        page: 1
  //}

  req.write(JSON.stringify(param)); //post 请求传参
  req.end(); //必须要要写，
}

var urlFirst = "http://kzgm.bbshjz.cn:8000/ncms";
// code 11183 是坝下路国胜大药房的编号
var code = "11183";
var startDate = null

function getCount(arr) {
  return arr.find(v => v.remain >= 5);
}

function getMask(arr) {
  var maskObj = getCount(arr);
  if (maskObj) {
    var data = {
        // 姓名
      name: "李乾坤",
      // 身份证
      cardNo: "34128**********",
      // 手机号
      phone: "130******70",
      // 口罩数量 固定5
      reservationNumber: "5",
      // 你要的药店名称
      pharmacyName: "国胜大药房坝下路店",
      // 药店id
      pharmacyCode: code,
      // 通过上次请求获取到的有效的口罩信息 数量和时间点
      pharmacyPhase: maskObj.value,
      pharmacyPhaseName: maskObj.text
    };
    var url = isvData(urlFirst + "/mask/book");
    request("POST", url, data, function(res) {
      console.log( res, "请求完成,用时" + (new Date().getTime()- Date.parse(startDate) ) + 'ms')
    });
  }
}

// 第一步 获取当前口罩剩余数量
startDate = new Date()
console.log("开始请求" + startDate.toLocaleString());
request(
  "GET",
  isvData(urlFirst + "/mask/pharmacy-stock?code=" + code),
  null,
  function(data) {
    
    try {
      data = JSON.parse(data);
      var arr = JSON.parse(data.msg);
      console.log("当前口罩剩余量" + data.msg);
      data.succeed && getMask(arr);
    } catch (error) {
      console.log(error);
    }
  }
);