检测本机是否登录了指定QQ账号

有时候做程序，喜欢把程序的注册与用户QQ号码绑定，程序仅允许登录成功了指定QQ账号时才可使用，

为了实现这个目的，有人用API取QQ窗口、QQ托盘图标上的QQ账号，

但是这个方法写起来比较麻烦，如果用户有意玩玩的话，也可以自己在你软件获取之前先用API修改你要获取的目标信息！

还有一种方法就是内存读取，当然要找到一个QQ登录成功后存放QQ号码的地址，基址肯定是不存在的，再加之QQ更新频繁，

所以内存读取的办法也不太好，

 

为了实现这个目的，还有一种办法那就是利用QQ网页自身的功能，这种方法既方便又准确，下面就来说下原理：

 

打开： http://xui.ptlogin2.qq.com/cgi-bin/qlogin

我们会发现这也页面会自动获取我们的已登录的QQ信息，并可以实现快速登录，分析之：

关键的东西：

<script src="http://imgcache.qq.com/ptlogin/ac/v5/js/xui.js?v=1.2"></script>

通过分析这个js，我们找到如下2个重要的函数：

 

 function ptui_qInit()  这个函数的作用是初始化SSOAxCtrlForPTLogin.SSOForPTLogin2对象，创建一个ActiveXObject对象

 hummer_loaduin()     这个函数就是真正的通过 SSOAxCtrlForPTLogin这个COM来获取已登录QQ信息的，

 到此，我们试着自己用程序来调用 SSOAxCtrlForPTLogin的com对象，但是发现失败，原因下面说，

 

 既然不能自己调用 SSOAxCtrlForPTLogin对象，那先试试将页面保存为本地在打开看看什么情况，结果如下：

“快速登录失败，请您返回重试或切换到普通登录模式。” 

很明显， SSOAxCtrlForPTLogin对象是要判断当前url的，如果url不是来自以下域名的都不能初始化成功：

var site=["qq.com","paipai.com","tencent.com","soso.com","taotao.com","tenpay.com","foxmail.com","wenwen.com","3366.com","imqq.com"];

 

好了，既然不能自己用本地页面，也不能自己写程序调用它的COM，那我们就直接来访问它获取它页面上已经获取好的信息吧：

同时附上已经格式好了的  xui.js代码，有兴趣的可以看看

xui.js

STR_QLOGIN = 1 ;STR_QLOGIN_OTHER_ERR = 2 ;STR_QLOGIN_SELECT_TIP = 3 ;STR_QLOGIN_NO_UIN = 4 ;STR_QLOGIN_SELECT_OFFLINE = 5 ;STR_QLOGINING = 6 ;

function  ptui_mapStr(B){
     for (i = 0 ;i < B.length;i ++ )
    {
         var  A = document.getElementById(B[i][ 1 ]);
         if (A != null )
        {
             if ( " A " == A.nodeName || " U " == A.nodeName || " OPTION " == A.nodeName || " LABEL " == A.nodeName || " P " == A.nodeName)
            {
                 if (A.innerHTML == "" )
                {
                    A.innerHTML = ptui_str(B[i][ 0 ])
                }
            }
             else
            {
                 if ( " INPUT " == A.nodeName)
                {
                     if (A.value == "" )
                    {
                        A.value = ptui_str(B[i][ 0 ])
                    }
                }
                 else
                {
                     if ( " IMG " == A.nodeName)
                    {
                        A.alt = ptui_str(B[i][ 0 ])
                    }
                }
            }
        }
    }
}

function  ptui_str(A){
    A -= 1 ;
     if (A >= 0 && A < g_strArray.length)
    { return  g_strArray[A]}
     return ""
}

var  g_labelMap = new  Array([STR_QLOGIN, " loginbtn " ],[STR_QLOGIN_SELECT_TIP, " qlogin_select_tip " ]);

ptui_mapStr(g_labelMap);

function  getArgs(){
     var  B = new  Object();
     var  F = location.href.substring(location.href.indexOf( " /qlogin? " ) + 8 );
     var  E = F.split( " & " );
     for ( var  C = 0 ;C < E.length;C ++ )
    {
         var  G = E[C].indexOf( " = " );
         if (G ==- 1 )
        {
             continue
        }
         var  A = E[C].substring( 0 ,G);
         var  D = E[C].substring(G + 1 );
        D = decodeURIComponent(D);
        B[A] = D
    }
     return  B
}

var  params = getArgs();
var  g_qtarget = params.qtarget;
var  g_domain = params.domain;
var  g_jumpname = params.jumpname;
var  g_param = params.param;
var  site = [ " qq.com " , " paipai.com " , " tencent.com " , " soso.com " , " taotao.com " , " tenpay.com " , " foxmail.com " , " wenwen.com " , " 3366.com " , " imqq.com " ];
var  flag = false ;
for ( var  i = 0 ;i < site.length;i ++ )
{
     if (site[i] == g_domain)
    {flag = true }
}
if ( ! flag)
{
    g_domain = " qq.com "
}
var  q_bInit = false ;
var  q_hummerQtrl = null ;
var  g_vOptData = null ;
var  q_aUinList = new  Array();

function  ptui_qInit(){
     if (q_bInit)
    { return  }
    q_bInit = true ;
     if ( ! window.ActiveXObject)
    { return  }
     try {
        q_hummerQtrl = new  ActiveXObject( " SSOAxCtrlForPTLogin.SSOForPTLogin2 " );
         var  A = q_hummerQtrl.CreateTXSSOData();
        q_hummerQtrl.InitSSOFPTCtrl( 0 ,A);
        g_vOptData = q_hummerQtrl.CreateTXSSOData();
        hummer_loaduin();
         if (q_aUinList.length <= 0 )
        {
            msg(ptui_str(STR_QLOGIN_NO_UIN));
             return   false
        }
         else
        {
             if (ptui_buildUinList)
            {ptui_buildUinList(q_aUinList)}
        }
        document.cookie = " ptui_qstatus=2;domain=ptlogin2. " + g_domain
    }
     catch (B)
    {
        q_hummerQtrl = null ;
        document.cookie = " ptui_qstatus=3;domain=ptlogin2. " + g_domain;
        msg(ptui_str(STR_QLOGIN_OTHER_ERR));
        ptui_reportAttr( 89217 , true )
    }
}

function  list(){
    q_bInit = false ;
    ptui_qInit();
    xui_report()
}

function  ptui_buildUinList(){
     var  G = "" ;
     var  E = document.getElementById( " list_uin " );
     if ( null == E)
    { return  }
     var  A = q_aUinList.length > 5 ? 5 :q_aUinList.length;
     for ( var  C = 0 ;C < A;C ++ )
    {
         var  F = q_aUinList[C];
         var  B = "" ;
         var  D = "" ;
         if (q_aUinList.length == 1 )
        {D = ' style="display:none;" ' }
         if (C == 0 )
        {B = " checked='checked' " }
        G += " <li><input type='radio' name='q_uin' id='uin_ " + F.uin + " '  " + B + D + "  /><span> " + F.nick.replace( / & / g, " &amp " ).replace( / < / g, " &lt " ).replace( / > / g, " &gt " ) + " &nbsp;( " + F.name + " )</span></li> "
    }
    E.innerHTML = G
}


function  onQloginSelect(){
     for ( var  C = 0 ;C < q_aUinList.length;C ++ )
    {
         var  D = q_aUinList[C];
         var  B = document.getElementById( " uin_ " + D.uin);
         if (B != null )
        {
             if (B.checked)
            {
                hummer_loaduin();
                 var  A = hummer_getUinObj(D.uin);
                 if (A == null )
                {
                    msg(ptui_str(STR_QLOGIN_SELECT_OFFLINE), true );
                     return  
                }
                document.getElementById( " qlogin_loading " ).innerHTML = ' <img src="http://imgcache.qq.com/ptlogin/v4/style/0/images/load.gif" align="absmiddle" /> ' + ptui_str(STR_QLOGINING);
                document.getElementById( " loginbtn " ).className = " btn_gray " ;
                document.getElementById( " loginbtn " ).style.color = " gray " ;
                hummer_login(A,g_domain,g_jumpname,g_param)
            }
        }
    }
}



function  hummer_loaduin(){
    q_aUinList.length = 0 ;
     var  P = q_hummerQtrl.DoOperation( 1 ,g_vOptData);
     if ( null == P)
    {   return  }
     try {
         var  M = P.GetArray( " PTALIST " );
         var  T = M.GetSize();
         var  O = "" ;
         var  F = document.getElementById( " list_uin " );
         for ( var  U = 0 ;U < T;U ++ )
        {
             var  C = M.GetData(U);
             var  R = C.GetDWord( " dwSSO_Account_dwAccountUin " );
             var  G = "" ;
             var  J = C.GetByte( " cSSO_Account_cAccountType " );
             var  S = R;
             if (J == 1 )
            {
                 try {
                    G = C.GetArray( " SSO_Account_AccountValueList " );
                    S = G.GetStr( 0 )
                }
                 catch (Q)
                {}
            }
             var  K = 0 ;
             try {
                K = C.GetWord( " wSSO_Account_wFaceIndex " )
            }
             catch (Q)
            {K = 0 }
             var  L = "" ;
             try {
                L = C.GetStr( " strSSO_Account_strNickName " )
            }
             catch (Q)
            {L = "" }
             var  D = C.GetBuf( " bufGTKey_PTLOGIN " );
             var  E = C.GetBuf( " bufST_PTLOGIN " );
             var  I = "" ;
             var  A = E.GetSize();
             for ( var  N = 0 ;N < A;N ++ )
            {
                 var  B = E.GetAt(N).toString( " 16 " );
                 if (B.length == 1 )
                {B = " 0 " + B}
                I += B
            }
             var  H = {uin:R,name:S,type:J,face:K,nick:L,key:I};
            q_aUinList[U] = H
        }
         switch (q_aUinList.length)
        {
             case   0 :ptui_reportAttr( 77430 , false ); break ;
             case   1 :ptui_reportAttr( 77431 , false ); break ;
             default :ptui_reportAttr( 77432 , false )
        }
    }
     catch (Q){}
}


function  hummer_getUinObj(B){
     for ( var  A = 0 ;A < q_aUinList.length;A ++ )
    {
         var  C = q_aUinList[A];
         if (C.uin == B)
        { return  C}
    }
     return   null
}


function  unloadpage(){
    document.domain = g_domain;
     try {
        parent.document.body.onbeforeunload = function (){};
        parent.document.body.onunload = function (){};
         for ( var  A = 0 ;A < parent.parent.frames.length;A ++ )
        {
            parent.parent.frames[A].onunload = function (){};
            parent.parent.frames[A].onbeforeunload = function (){}
        }
         if (parent.parent != top)
        {
             for ( var  A = 0 ;A < parent.parent.parent.frames.length;A ++ )
            {
                parent.parent.parent.frames[A].onunload = function (){};
                parent.parent.parent.frames[A].onbeforeunload = function (){}
            }
        }
    }
     catch (B){}
}


function  hummer_login(E,D,A,F){
     if (A == "" )
    {A = " jump " }
     var  C = " http://ptlogin2. " + D + " / " + A + " ?clientuin= " + E.uin + " &clientkey= " + E.key + " &keyindex=9 " ;
     if (F != null && F != "" )
    {
         var  B = decodeURIComponent(F);
         if (B.indexOf( " # " ) >- 1 )
        {
            B = B.replace( / # / g, " %23 " )
        }
        C += ( " & " + B)
    }
     switch (parseInt(g_qtarget))
    {
         case   0 :unloadpage();parent.location.href = C; break ;
         case   1 :top.location.href = C; break ;
         case   2 :unloadpage();parent.parent.location.href = C; break ;
         default :top.location.href = C
    }
}


function  msg(A){
     try {
         var  C = document.getElementById( " qlogin_loading " );
         if ((C.style.display != " none " ) && (document.getElementById( " qlogin " ).style.display != " none " ))
        {
            C.innerHTML = ' <span style="color:#cc0000;"> ' + A + " </span> " ;C.style.display = ""
        }
    }
     catch (B){}
}

function  xui_report(B){
     if (Math.random() > 0.001 )
    { return  }
     var  A = new  Date();
     var  C = location.hash.substr( 1 ,location.hash.length);
    url = " http://isdspeed.qq.com/cgi-bin/r.cgi?flag1=6000&flag2=1&flag3=2&1= " + (A - C) + " &2= " + (A - time1);
    imgTime = new  Image();
    imgTime.src = url
}

function  ptui_reportAttr(C,B){
     if ((B == false ) && (Math.random() > 0.001 ))
    { return  }
    url = " http://ui.ptlogin2. " + g_domain + " /cgi-bin/report?id= " + C;
     var  A = new  Image();
    A.src = url
}

list(); /*   |xGv00|0d5165981e8a571e21b5c15cc81a9130  */

 

 

接着我们来直接实现程序吧，代码如下：

CheckLoginedQQ

using  System;
using  System.Windows.Forms;
namespace  CheckLoginedQQ
{
     public   class  Checker
    {
        
         public  Checker()
        {

        }
         private  HtmlDocument Document;
         ///   <summary>
         ///  初始化
         ///   </summary>
         ///   <returns></returns>
         public   bool  Initialize()
        {
            WebBrowser browser  =   new  WebBrowser();
            browser.Url  =   new  Uri( " http://xui.ptlogin2.qq.com/cgi-bin/qlogin " );
             while  (browser.ReadyState != WebBrowserReadyState.Complete)
            {
                Application.DoEvents();
            }
             if  (browser.Document.Url.AbsoluteUri  ==   " http://xui.ptlogin2.qq.com/cgi-bin/qlogin " )
            {
                Document  =  browser.Document;
                 return   true ;
            }
             return   false ;
        }
        ///   <summary>
        ///  检测登陆账号
        ///   </summary>
        ///   <param name="uin"></param>
        ///   <returns></returns>
        public   bool  QQisLogined( string  uin)
       {
           HtmlElementCollection elements = Document.GetElementsByTagName( " input " );
            foreach (HtmlElement element  in  elements)
           {
                string  type  =  element.GetAttribute( " type " );
                if  (type  !=   " radio " )
                    continue ;
                string  name  =  element.GetAttribute( " name " );
                if  (name  !=   " q_uin " )
                    continue ;
                string  id  =  element.GetAttribute( " id " );
                if  (id  ==   " uin_ "   +  uin)
               {
                    return   true ;
               }
           }
            return   false ;
       }
    }
}

 

首先用Webbrowser控件访问，http://xui.ptlogin2.qq.com/cgi-bin/qlogin

通过ReadState属性判断页面是否加载完成

通过Document.url判断加载时候为http://xui.ptlogin2.qq.com/cgi-bin/qlogin页面

然后返回真或假

Initialize() == true 之后通过Webbrowser.Document来获取页面上的QQ信息，具体实现看代码！

 

 好了，基本就是这样了，不过要注意的一点是Webbrowser是不能跨线程实例化的，因为他是一个基于COM的控件，所以必须使用 [STAThread] 管理线程

 使用示例如下：

 [STAThread]

        static void Main(string[] args)

        {

            CheckLoginedQQ.Checker checker = new CheckLoginedQQ.Checker();

            if (checker.Initialize())

            { 

                if（checker.QQisLogined("110001")）;

                  Console.Write("Logined"); 

               else

                   Console.Write("Not Logined"); 

             }

             else

            {

                   Console.Write("un Initialize");  

             } 

        }