相信用过google的analytics的朋友都了解其功能的强大.
由于工作需要,最近将其urchin.js的代码down了一份下来研究了一下.由于其注释很少,命名也很难读懂.研究了1个月.小有所成.将其代码重写并加上了注释.与大家一同分享.这里面将google的用户识别代码删除. /**//*
=====================================
|--------Author By BlackSoul---------|
|------------2006.04.27--------------|
|[email protected]------|
|------------QQ:9136194--------------|
|------http://blacksoul.cnblogs.cn---|
======================================
*/
//定义全局量
var ur = ""; //来源地址
var urp = new Array(); //来源参数名称
var urpv = new Array(); //来源参数值
var arrayCount = 0; //参数数目
pageOpen = new Date(); //进入页面的时间
var reqURL = "http://192.168.0.219/Analytics/"; //接收数据的页面地址
var GUID = Math.round(Math.random()*2147483647); //用户唯一随机数
var title = document.title; //网页标题
var uexp = pageOpen.getTime() + ( 1000 * 60 * 60 * 24 * 30 ); //设置cookie过期时间 既回访用户的限定
var rtu = "false"; //指示用户是否回访用户
//浏览器特征信息
var brower = new Array();
/**//*
* brower[0] 浏览器类型
* brower[1] 浏览器版本
* brower[2] 浏览器java是否打开 1开-1关
* brower[3] 浏览器flash版本
* brower[4] 浏览器操作系统
* brower[5] 浏览器分辨率
* brower[6] 浏览器色深
* brower[7] 浏览器语言
* brower[8] 浏览器插件
*/
var sEn=new Array(); //搜索引擎的名称
var keyWord=new Array(); //关键字传输形式
sEn[0]="google"; keyWord[0]="q";
sEn[1]="yahoo"; keyWord[1]="p";
sEn[2]="msn"; keyWord[2]="q";
sEn[3]="aol"; keyWord[3]="query";
sEn[4]="lycos"; keyWord[4]="query";
sEn[5]="ask"; keyWord[5]="q";
sEn[6]="altavista"; keyWord[6]="q";
sEn[7]="search"; keyWord[7]="q";
sEn[8]="netscape"; keyWord[8]="query";
sEn[9]="earthlink"; keyWord[9]="q";
sEn[10]="cnn"; keyWord[10]="query";
sEn[11]="looksmart"; keyWord[11]="key";
sEn[12]="about"; keyWord[12]="terms";
sEn[13]="excite"; keyWord[13]="qkw";
sEn[14]="mamma"; keyWord[14]="query";
sEn[15]="alltheweb"; keyWord[15]="q";
sEn[16]="gigablast"; keyWord[16]="q";
sEn[17]="voila"; keyWord[17]="kw";
sEn[18]="virgilio"; keyWord[18]="qs";
sEn[19]="teoma"; keyWord[19]="q";
sEn[20]="baidu"; keyWord[20]="wd";
//test data----------------------------//////////////////////////////-----------/-/-/-/-/-/-/-/-/-/-/-
sEn[21]="localhost"; keyWord[21]="q";
这里面定义一些全局的量,其中upr,urpv为来源参数和指,比如来源为http://www.google.com/?p=BlackSoul&q=javascript,则urp[0]="p",urp[1]="q" 相对应的urpv[0]="BlackSoul",urpv[1]="javascript".
但是最终传输的时候是以分隔符的形式传递给服务器端的.
GUID为随机数,google是这么做的.当初没有想通为什么要保存一个随机数,后来分析数据的才明白过来.为了验证用户的唯一性.
以下是函数处理:
//-----------------------------比较url,如果为搜索引擎则保存关键字-------------
function getKeyword(url)
{
var hostname;
if(url.indexOf(".") == -1)
{hostname = url;}
else
{hostname = url.substring(url.indexOf("."),url.lastIndexOf("."));}
for(var i = 0; i < sEn.length; i++)
{
if(hostname == sEn[i])
{
for(var j = 0; j < urp.length; j ++)
{
if(urp[j] == keyWord[i])
{
return urpv[j];
}
}
}
}
return "";
}
//将URL转换为地址和页面参数和参数值 参数uri为页面地址
function gethn(uri)
{
if(!uri || uri == "") return "";
ur = uri;
var sub;
//带参数
if(ur.indexOf("?") != -1)
{
var url = ur.substring(0,ur.indexOf("?"));
var para = ur.substring(ur.indexOf("?")+1,ur.length);
while(para.length > 0)
{
if(para.indexOf("&") == -1)
{
urp[arrayCount] = para.substring(0,para.indexOf("="));
urpv[arrayCount] = para.substring(para.indexOf("=")+1,para.length);
break;
}
sub = para.substring(0,para.indexOf("&"));
urp[arrayCount] = sub.substring(0,sub.indexOf("="));
urpv[arrayCount] = sub.substring(sub.indexOf("=")+1,sub.length);
para = para.substring(para.indexOf("&")+1,para.length);
arrayCount ++;
}
return url;
}
else
return ur;
}
//----------------------------获得域名---------------------------------------------
function getHostName(url)
{
url = url.substring(url.indexOf('://')+3,url.length);
url = url.substring(0,url.indexOf("/"));
return url;
}
//---------------------------获得flash版本------------------------------------------
function getFlash() {
var f="-1",n=navigator;
if (n.plugins && n.plugins.length) {
for (var ii=0;ii<n.plugins.length;ii++) {
if (n.plugins[ii].name.indexOf('Shockwave Flash')!=-1) {
f=n.plugins[ii].description.split('Shockwave Flash ')[1];
break;
}
}
} else if (window.ActiveXObject) {
for (var ii=10;ii>=2;ii--) {
try {
var fl=eval("new ActiveXObject('ShockwaveFlash.ShockwaveFlash."+ii+"');");
if (fl) { f=ii + '.0'; break; }
}
catch(e) {}
}
}
if(f == "-1")
return f;
else
return f.substring(0,f.indexOf(".")+2);
}
//--------------------------设置异步传输-----------------------------------
function createXMLHttpRequest()
{
if (window.XMLHttpRequest)
{
return new XMLHttpRequest();
}
else if (window.ActiveXObject)
{
return new ActiveXObject("Microsoft.XMLHttp");
}
} 以上的方法可以取得一些基本信息.但是关键的问题还是设置用户cookie,判断回访,判断最后一次访问时间,并设置其GUID.这里看了很久没有发现google是怎么做的...于是自己想了一些笨办法.见一下代码:
//浏览器特征信息
function BrowserInfo()
{
brower[0] = navigator.appName;
brower[7] = navigator.language;
if(brower[0] == "Netscape")
{
var browerInfo = navigator.userAgent;
brower[1] = browerInfo.substring(browerInfo.lastIndexOf(" ")+1,browerInfo.length);
brower[0] = brower[1].substring(0,brower[1].lastIndexOf("/"));
brower[1] = browerInfo.substring(browerInfo.lastIndexOf("/")+1,browerInfo.length);
brower[7] = navigator.language;
}
else if(brower[0] == "Microsoft Internet Explorer")
{
brower[1] = navigator.userAgent.split(";")[1];
brower[7] = navigator.userLanguage;
}
brower[2] = navigator.javaEnabled()?1:-1;
brower[3] = getFlash();
brower[4] = getOS();
if (self.screen) {
sr=screen.width+"x"+screen.height;
sc=screen.colorDepth+"-bit";
}
else if (self.java)
{
var j=java.awt.Toolkit.getDefaultToolkit();
var s=j.getScreenSize();
sr=s.width+"x"+s.height;
}
//分辨率
brower[5] = sr;
//色深
brower[6] = sc;
//插件列表
brower[8] = getPlugin();
}
//-----------------------获得当前地址-----------------------------
function getHref()
{
return document.location.href;
}
//-----------------------cookie操作开始-----------------------------------------------------------------------------------------------------------------
function setCookie(name, value)
//设定Cookie值
{
var expdate = new Date();
var argv = setCookie.arguments;
var argc = setCookie.arguments.length;
var expires = 15768000;
var path = (argc > 3) ? argv[3] : null;
var domain = (argc > 4) ? argv[4] : null;
var secure = (argc > 5) ? argv[5] : false;
if(expires!=null)
{
//设置过期时间24小时
expdate.setTime(uexp);
document.cookie = name + "=" + escape (value) +((expires == null) ? "" : ("; expires="+ expdate.toGMTString()))
+ ((path == null) ? "" : ("; path=" + path)) +((domain == null) ? "" : ("; domain=" + domain))
+ ((secure == true) ? "; secure=" : "");
}
}
function delCookie(name)
//删除Cookie
{
var exp = new Date();
exp.setTime (exp.getTime() - 1);
var cval = getCookie (name);
document.cookie = name + "=" + cval + "; expires="+ exp.toGMTString();
}
//获得Cookie的值
function getCookie(fname)
{
var name,value;
var cookies = new Object();
var beginning,middle,end;
beginning = 0;
while(beginning < document.cookie.length)
{
middle = document.cookie.indexOf("=",beginning);
end = document.cookie.indexOf(";",beginning);
if(end == -1)
{
end = document.cookie.length;
}
if((middle > end) || (middle == -1))
{
name = document.cookie.substring(beginning,end);
value = "";
}
else
{
name = document.cookie.substring(beginning,middle);
value = document.cookie.substring(middle+1,end);
}
if(name == fname)
{
return unescape(value);
}
beginning = end + 2;
}
}
//-----获取GUID的cookie是否存在获得---------------------------------------------------
function getCookieValue()
{
var guid = getCookie("GUID");
if(guid != null)
{
return guid;
}
else
{
return "noCookie";
}
}
//---------------------获得注册用户cookie---------------------------------------------
function getRegUserCookie()
{
return ;
}
//-----------------------------cookie 操作完毕------------------------------------------------------------------------------------------------------------
//---------------------------得操作系统---------------------------
function getOS()
{
var OSlist = new Array();
var OSName = new Array();
OSlist[0] = " Windows4.0"; OSName[0] = "Windows 95";
OSlist[1] = " Windows 98"; OSName[1] = "Windows 98";
OSlist[2] = " Windows NT 5.0"; OSName[2] = "Windows 2000";
OSlist[3] = " Windows NT 5.1"; OSName[3] = "Windows XP";
OSlist[4] = " Windows NT 5.2"; OSName[4] = "Windows Server 2003";
var ua = navigator.userAgent.split(";");
for(var i = 0; i < OSlist.length; i++)
{
if(ua[2] == OSlist[i])
return OSName[i];
}
return ua[2];
}
//获得插件
function getPlugin()
{
var plugin = "";
var ua = navigator.userAgent.split(";");
if(ua.length < 4)
return "";
for(var i = 4; i < ua.length; i++)
{
plugin += ua[i] + ",";
}
return plugin.substring(0,plugin.length-2);
}
需要说明的一点是GetResidentTime这个函数,google采用了img.load的方法加载了接收处理信息页面的,需要再服务器端配置将后缀为.gif或你所取的其他形式的文件使用aspx的方式编译运行.因为我原来考虑的是使用xmlHttp异步调用.但是页面退出的时候有时候不执行.所以就弃用了.代码如下: function GetResidentTime()
{
pageClose = new Date();
minutes = (pageClose.getMinutes() - pageOpen.getMinutes());
if(minutes < 0)
{
minutes = minutes + 60;
}
seconds = (pageClose.getSeconds() - pageOpen.getSeconds());
if(seconds < 0){ seconds += 60;}
time = (seconds + (minutes * 60));
//------------------------修改此处为接收链接地址 XML 异步传输------------------------------------
// var xmlHttp = createXMLHttpRequest();
// xmlHttp.open("POSt", reqURL + firstvisit.aspx?" + StrPara(), false);
// xmlHttp.send(null);
//----------------------------图片形式传递-------------------------------------------------------
if(isReturn() == false)
{
var i = new Image(1,1);
i.src = reqURL + "firstVisit.aspx?" + StrPara() + "&GUID=" + GUID;
i.onload = function() {LoadVoid();}
//进入页面的信息
if(getCookieValue("GUID") == "noCookie"){return ;}
i.src = reqURL + "pageView.gif?" + pageView() + "&st=" + time;
i.onload=function() {LoadVoid();}
}
else
{
var i=new Image(1,1);
i.src = reqURL + "pageView.gif?" + pageView() + "&st=" + time;
i.onload=function() {LoadVoid();}
}
} 最后就是调用了.我使用了window.onunload = GetResidentTime
传递的参数大家可以打印出来看一下.应该可以明白其意思.
剩下的就是服务器端的处理了,在服务器端处理其实相当简单.取得request的值,验证并保存入数据库.现在有了数据,分析的事情就由用户按照自己的要求来处理了..补充一句,ip地址是由服务器端来取得保存的.
使用的时候记得一定将其放到服务器端,然后使用<javascript language="javascript" type="text/javascript" src=服务器地址+路径+"statistics.js"> </script> 附上完整的代码http://blacksoul.cnblogs.com/archive/2006/05/19/404563.html