worker_processes  2;

events {

    worker_connections  1024;

}

http {

    include       mime.types;

    default_type  application/octet-stream;

    log_format tick "$msec^A$remote_addr^A$u_domain^A$u_url^A$u_title^A$u_referrer^A$u_sh^A$u_sw^A$u_cd^A$u_lang^A$http_user_agent^A$u_utrace^A$u_account";

    access_log  logs/access.log  tick;

    sendfile        on;

    keepalive_timeout  65;

    server {

        listen       80;

        server_name  localhost;

location /1.gif {

#偽裝成gif檔案

default_type image/gif;    

#本身關閉access_log，通過subrequest記錄log

access_log off;

access_by_lua "

-- 使用者跟蹤cookie名為__utrace

local uid = ngx.var.cookie___utrace        

if not uid then

-- 如果沒有則生成一個跟蹤cookie，演算法為md5(時間戳+IP+客戶端資訊)

uid = ngx.md5(ngx.now() .. ngx.var.remote_addr .. ngx.var.http_user_agent)

end

ngx.header['Set-Cookie'] = {'__utrace=' .. uid .. '; path=/'}

if ngx.var.arg_domain then

-- 通過subrequest到/i-log記錄日誌，將引數和使用者跟蹤cookie帶過去

ngx.location.capture('/i-log?' .. ngx.var.args .. '&utrace=' .. uid)

end

";  

#此請求不快取

add_header Expires "Fri, 01 Jan 1980 00:00:00 GMT";

add_header Pragma "no-cache";

add_header Cache-Control "no-cache, max-age=0, must-revalidate";

#返回一個1×1的空gif圖片

empty_gif;

}   

location /i-log {

#內部location，不允許外部直接訪問

internal;

#設定變數，注意需要unescape

set_unescape_uri $u_domain $arg_domain;

set_unescape_uri $u_url $arg_url;

set_unescape_uri $u_title $arg_title;

set_unescape_uri $u_referrer $arg_referrer;

set_unescape_uri $u_sh $arg_sh;

set_unescape_uri $u_sw $arg_sw;

set_unescape_uri $u_cd $arg_cd;

set_unescape_uri $u_lang $arg_lang;

set_unescape_uri $u_utrace $arg_utrace;

set_unescape_uri $u_account $arg_account;

#開啟日誌

log_subrequest on;

#記錄日誌到ma.log，實際應用中最好加buffer，格式為tick

access_log /var/nginx_logs/ma.log tick;

#輸出空字串

echo '';

}

    }

}

(function () {

    var params = {};

    //Document物件資料

    if(document) {

        params.domain = document.domain || '';

        params.url = document.URL || '';

        params.title = document.title || '';

        params.referrer = document.referrer || '';

    }   

    //Window物件資料

    if(window && window.screen) {

        params.sh = window.screen.height || 0;

        params.sw = window.screen.width || 0;

        params.cd = window.screen.colorDepth || 0;

    }   

    //navigator物件資料

    if(navigator) {

        params.lang = navigator.language || '';

    }   

    //解析_maq配置

    if(_maq) {

        for(var i in _maq) {

            switch(_maq[i][0]) {

                case '_setAccount':

                    params.account = _maq[i][1];

                    break;

                default:

                    break;

            }   

        }   

    }   

    //拼接引數串

    var args = '';

    for(var i in params) {

        if(args != '') {

            args += '&';

        }   

        args += i + '=' + encodeURIComponent(params[i]);

    }   

    //通過Image物件請求後端指令碼

    var img = new Image(1, 1);

    img.src = 'http://xxx.xxx.xxx.xxx/log.gif?' + args;

})();

<script type="text/javascript">

var _maq = _maq || [];

_maq.push(['_setAccount', 'zx5352']);

(function() {

var ma = document.createElement('script');

ma.type = 'text/javascript';

ma.async = true;

ma.src = 'http://xxx.xxx.xxx.xxx/ma.js';

var s = document.getElementsByTagName('script')[0];

s.parentNode.insertBefore(ma, s);

})();

</script>