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标题 小米商城抢购时的JavaScript代码，分析一下
范文
    小米抢购时的JS代码，分析一下吧，返回的ajax代码:
    hdcontrol({"stime":1381645438,"status":{"allow":false,"miphone":{"hdstart":false,"hdstop":false,"hdurl":"","duration":null},"mibox":{"hdstart":false,"hdstop":false,"hdurl":"","duration":null}}})
    function forNum(a){
    return 10>a?"0"+a:a
    }
    function countdown(a,b){
    var c=new Date(b).getTime()/1e3,
    d=c-a,
    e=parseInt(d%60),
    f=parseInt(d/60%60),g=parseInt(d/3600%24),
    h=parseInt(d/3600/24),
    i=[e.toString(),
    f.toString(),
    g.toString()];
    return 0>=d?["00小时00分00秒",!0]:h>0?(window._timestr=h+"天"+forNum(i[2])+"时"+forNum(i[1])+"分"+forNum(i[0])+"秒",[h+"<span>天</span>"+forNum(i[2])+"<span>时</span>"+forNum(i[1])+"<span>分</span>"+forNum(i[0])+"<span>秒</span>",!1]):(window._timestr=forNum(i[2])+"时"+forNum(i[1])+"分"+forNum(i[0])+"秒",[forNum(i[2])+"<span>时</span>"+forNum(i[1])+"<span>分</span>"+forNum(i[0])+"<span>秒</span>",!1])}
    function WebEventTrigger(a,b){
    try{
    if(WE&&WE.trigger)
    return"string"!=typeof b&&(b=JSON.stringify(b)),WE.trigger(a,b)
    }catch(c){}
    return!1
    }
    function isApp(){
    try{
    if(WE)return!0
    }catch(a){}
    return!1
    }
    var quickBuy={init:function(){
    var a=this;
    this.config={},
    this.config.hdurl={miphone:"m3/840410D8656D74E5F334591BD8A408A726799AEC13477D90B5E48DAD36547351/4334F49A1EE391261005E8AC5A0C9D2FDA23BB72A2D20AB3F58343496FD4983D/tip_SaledOverAll.html",mibox:"tv/B1CF7B57BFEAE1EBC37700694C123D894C668BF11F6F25D59311FD36942B3D6A/130F1B18D11F53CA1D0147B24E926C5A9B7676E57BE3D47959D6557545E8A339/tip_SaledOverAll.html"
    },
    this.config.mode="",
    this.mode={miphone:!1,mibox:!1},
    this.modeModals={miphone:"#modal_miphone",mibox:"#modal_mibox"},
    this.modeCookies={miphone:"xm_hd_so_phone",mibox:"xm_hd_so_box"},
    this.config.startDate=+new Date("10/15/2013 12:00:00"),
    this.maskLoad=$("#maskLoad"),
    this.config.minSignTime=120,
    this.results=null,
    this.timer=null,
    this.timeCount=Math.floor(Math.abs(10*Math.random()-5))+5;
    var b=!0;
    for(var c in this.mode)
    $.cookie(this.modeCookies[c])||(b=!1),$.cookie(this.modeCookies[c])&&this.saleOut();
    b||($.cookie("xm_diff_hd")?(this.config.serverTime=this.localTime()+parseInt($.cookie("xm_diff_hd"),10),this.config.serverTime>=parseInt(this.config.startDate/1e3,10)?$.cookie("xm_hd_so_phone")&&$.cookie("xm_hd_so_box")||this.getData(!0,function(){a.goBuy()}):this.launch()):this.getData())},getData:function(a,b){
    var c=this,a=a||null;
    b&&(b=b),
    $.ajax({
    ",
    dataType:"jsonp",
    jsonpCallback:"hdcontrol",
    timeout:7e3,
    beforeSend:function(){
    c.maskLoad.css("display","block")},
    error:function(){
    c.maskLoad.css("display","none"),
    alert("服务器压力山大，请您重新刷新页面！")
    },
    success:function(d){
    if(c.maskLoad.css("display","none"),"undefined"==typeof d)
    return alert("服务器压力山大，请您重新刷新页面！"),
    void 0;
    if(c.results=d,a||(c.config.serverTime=c.results.stime),!$.cookie("xm_diff_hd")){
    var e=parseInt(c.config.serverTime-c.localTime(),10);
    $.cookie("xm_diff_hd",e,{
    path:"/",
    domain:".xiaomi.com",
    expires:1
    })
    }
    if(a){
    c.initialData();
    for(var f in c.mode)
    if(c.config[f].hdstart===!1&&c.config[f].hdstop===!0){
    var g=c.modeCookies[f];
    $.cookie(g,1,{path:"/",domain:".xiaomi.com",expires:1}),
    c.saleOut()
    }else b&&b.call()
    }
    a||c.launch()
    }})},
    initialData:function(){
    this.config.allow=this.results.status.allow,
    this.config.mibox=this.results.status.mibox,
    this.config.miphone=this.results.status.miphone
    },
    launch:function(){
    this.timeStart(),
    this.countdown()
    },
    timeStart:function(){
    var a=this,
    b=1e3*a.config.serverTime,
    c=a.config.startDate,
    d=c-1e3*60*a.config.minSignTime;
    b>=d&&c>b&&!isApp()?
    $.cookie("userId")?
    ($("#view_button").css("visibility","hidden"),
    $("#purchase_btn_1").html('<a href="">活动详情</a>'),
    $("#purchase_btn_2").html('<a href="javascript:;">已经登录</a>')):a.toLogin():b>=c&&a.toBuy()
    },
    toLogin:function(){
    $("#view_button").css("visibility","hidden"),
    $("#purchase_btn_1").html('<a href="">活动详情</a>'),
    $("#purchase_btn_2").html('<a href="javascript:;">提前登录</a>'),
    $("#purchase_btn_2").find(".btn_02").on("click",function(){
    WebEventTrigger("login",null)||(window.location.href="))}
    )},
    countdown:function(){
    var a=this,
    b=null,
    c=a.config.startDate;
    b=a.config.serverTime?a.config.serverTime:parseInt(+new Date/1e3,10);
    var d=c-1e3*60*a.config.minSignTime,
    e=setInterval(function(){
    var f=countdown(b,c);
    f[1]?(clearInterval(e),$("#countdown").css("display","none"),a.toBuy()):(1e3*b!=d||isApp()||($.cookie("userId")?($("#view_button").css("visibility","hidden"),
    $("#purchase_btn_1").html('<a href="">活动详情</a>'),
    $("#purchase_btn_2").html('<a href="javascript:;">已经登录</a>')):a.toLogin()),b++),
    $("#countdown").html(f[0])},1e3)},
    toBuy:function(){
    var a=this;
    a.goBuy();
    var b=a.modeModals[a.config.mode];
    $(b).find(".close").on("click",function(){
    $(b).css("display","none"),
    window.clearTimeout(a.timer),
    a.timer=null})},
    saleOut:function(){
    var a={miphone:"#purchase_btn_2",mibox:"#purchase_btn_1"},
    b={miphone:""},
    c={miphone:"支付小米手机3",mibox:"支付小米电视"};
    for(var d in this.mode)
    $.cookie(this.modeCookies[d])&&($(a[d]).html('<a href="'+b[d]+'">'+c[d]+"</a>"),
    $(this.modeModals[d]).is(":visible")&&$(this.modeModals[d]).find(".close").click())},
    localTime:function(){
    var a=parseInt(+new Date/1e3,10);
    return a
    },
    toProcess:function(a){
    var b=this,
    c=b.timer,
    d=b.timeCount||10,e=$(b.modeModals[a]).find(".re_countdown"),
    f=$(b.modeModals[a]).find(".modal_btn"),
    g=function(){0==d?(f.html('<a href="javascript:;">进入活动</a>'),
    b.toBuyGo(b.config.mode),
    c&&window.clearTimeout(c),
    c=null):(e.html("("+d+")"),
    d--,
    b.timer=window.setTimeout(function(){g()},1e3))};
    c&&window.clearTimeout(c),g()},
    goBuy:function(){
    var a=this,
    b={miphone:"购买小米手机3",mibox:"购买小米电视"},
    c={miphone:"#purchase_btn_2",mibox:"#purchase_btn_1"};
    for(var d in a.mode)
    $.cookie(a.modeCookies[d])||($(c[d]).html('<a href="javascript:;" data-type="'+d+'">'+b[d]+"</a>"),
    $(c[d]).is(":hidden")&&$(c[d]).css("display","block"));
    $("#open_button").find(".btn_buy_go").on("click",function(){a.mode[$(this).attr("data-type")]=!0;
    var b=a.config.mode=$(this).attr("data-type");
    if($.cookie("userId"))a.getData(!0,function(){
    $(a.modeModals[b]).css("display","block"),
    $(a.modeModals[b]).find(".close").on("click",function(){
    $(a.modeModals[b]).css("display","none"),window.clearTimeout(a.timer),a.timer=null}),a.toProcess(b)});
    else{if(WebEventTrigger("login",null))return;
    window.location.href=")}})},
    toBuyGo:function(a){
    var b=this;
    window.clearTimeout(b.timer),
    b.timer=null,
    $(b.modeModals[a]).find(".modal_btn").find(".into_buy_btn").on("click",function(c){c.preventDefault(),b.getData(!0,function(){
    if($(b.modeModals[a]).css("display","block"),b.config.allow)if(b.config[a].hdurl){
    var c="";
    window.setTimeout(function(){window.location.href=c},500)
    }else{
    var d="];
    window.setTimeout(function(){window.location.href=d},500)
    }else if(
    b.config[a].hdstart===!1&&b.config[a].hdstop===!0){
    var d="];
    window.setTimeout(function(){window.location.href=d},500)
    }else $(b.modeModals[a]).find(".modal_btn").html('<a href="javascript:;">重新进入<span></span></a>'),
    b.toProcess(a)
    })})}};
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更新时间：2025/5/18 4:38:14