Javascript实现检测客户端类型代码封包_javascript技巧

检测访问网页的浏览器呈现引擎、平台、Windows操作系统、移动设备和游戏系统

/**
 * Author: laixiangran.
 * Created by laixiangran on 2015/12/02.
 * 检测访问网页的浏览器呈现引擎、平台、Windows操作系统、移动设备和游戏系统
 * ********************************************************************
 * 各版本浏览器在windows10.0下的用户代理字符串：
 * Google Chrome 45.0.2454.85 —— "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36"
 * Opera 31.0.1889.174 —— "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36 OPR/31.0.1889.174"
 * Microsoft Edge —— "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.10240"
 * Firefox 40.0.3 —— "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0"
 * Internet Explorer 11+ —— "Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729; rv:11.0) like Gecko"
 * Internet Explorer 10- —— "Mozilla/5.0 (compatible; MSIE x.0; Windows NT 10.0; WOW64; Trident/8.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)"
 */
(function(){

  window.iClient = {};

  //呈现引擎信息
  var engine = {
    //呈现引擎
    ie: 0,
    gecko: 0,
    webkit: 0,
    khtml: 0,
    opera:0,
    //具体版本号
    ver: null
  };

  var browser = {
    //浏览器
    ie: 0,
    edge: 0,
    firefox: 0,
    safari: 0,
    konq: 0,
    opera: 0,
    chrome: 0,
    //具体版本号
    ver: null
  };

  //平台、设备和操作系统
  var system = {
    win: false,
    mac: false,
    unix: false,

    //移动设备
    iphone: false,
    ipod: false,
    ipad: false,
    ios: false,
    android: false,
    nokiaN: false,
    winMobile: false,

    //游戏系统
    wii: false, //任天堂
    ps: false  //Playstation3
  };

  //获取浏览器的用户代理字符串
  var ua = window.navigator.userAgent;

  //检测呈现引擎和浏览器
  //检测Presto内核的Opera浏览器
  if(window.opera){
    engine.ver = browser.ver = window.opera.version();
    engine.opera = browser.opera = parseFloat(engine.ver);
  }
  //检测WebKit 用代理字符串中的"AppleWebKit"进行检测
  else if(/AppleWebKit\/(\S+)/.test(ua)){
    engine.ver = RegExp["$1"];
    engine.webkit = parseFloat(engine.ver);
    //确定Microsoft Edge
    if(/Edge\/(\S+)/.test(ua)){
      browser.ver = RegExp["$1"];
      browser.edge = parseFloat(browser.ver);
    }
    //确定WebKit内核Opera
    else if(/OPR\/(\S+)/.test(ua)){
      browser.ver = RegExp["$1"];
      browser.opera = parseFloat(browser.ver);
    }
    //确定Chrome
    else if(/Chrome\/(\S+)/.test(ua)){
      browser.ver = RegExp["$1"];
      browser.chrome = parseFloat(browser.ver);
    }
    //确定Safari
    else if(/Version\/(\S+)/.test(ua)){
      browser.ver = RegExp["$1"];
      browser.safari = parseFloat(browser.ver);
    }else{
      //近似的确定版本号
      var safariVersion = 1;
      if(engine.webkit  -1;
  system.ipod = ua.indexOf("iPod") > -1;
  system.ipad = ua.indexOf("iPad") > -1;
  system.nokiaN = ua.indexOf("NokiaN") > -1;

  //window mobile
  if(system.win == "CE"){
    system.winMobile = system.win;
  }else if(system.win == "Ph"){
    if(/Windows Phone OS (\d+.\d+)/.test(ua)){
      system.win = "Phone";
      system.winMobile = parseFloat(RegExp["$1"]);
    }
  }

  //检测iOS版本
  if(system.mac && ua.indexOf("Mobile") > -1){
    if(/CPU (?:iPhone )?OS (\d+.\d+)/.test(ua)){
      system.ios = parseFloat(RegExp["$1"].replace("_","."));
    }else{
      system.ios = 2; //不能真正检测出来，所以只能猜测
    }
  }

  //检测安卓版本
  if(/Android (\d+.\d+)/.test(ua)){
    system.android = parseFloat(RegExp["$1"]);
  }

  //检测游戏系统
  system.wii = ua.indexOf("wii") > -1;
  system.ps = /playstation/i.test(ua);

  window.iClient.engine = engine;
  window.iClient.browser = browser;
  window.iClient.system = system;
})();

再给大家一个简单点的实例：判断windows、linux、android