跟踪（直接）文件下载的最佳方法

跟踪直接文件下载的最佳方法是什么？

Google Analytics 仅适用于 JavaScript，无法跟踪直接文件下载。

最好的是安全且自己的托管解决方案。

放心使用:)

.htaccess：

RewriteEngine on    
RewriteRule ^(.*).(rar|zip|pdf)$ http://xy.com/downloads/download.php?file=$1.$2 [R,L]    

mysql:

CREATE TABLE `download` (
    `filename` varchar(255) NOT NULL,
    `stats` int(11) NOT NULL,
    PRIMARY KEY  (`filename`)
)

下载.php

<?php

mysql_connect("localhost", "name", "password")
or die ("Sorry, can't connect to database.");
mysql_select_db("dbname"); 
$baseDir = "/home/public_html/downloads"; 
$path = realpath($baseDir . "/" . basename($_GET['file'])); 

if (dirname($path) == $baseDir) {
if(!is_bot())
mysql_query("INSERT INTO download SET filename='".mysql_real_escape_string(basename($_GET['file']))."' ON DUPLICATE KEY UPDATE stats=stats+1");


header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Disposition: attachment; filename=" . basename($_GET['file']));
header("Content-Length: ".filesize($path));
header("Content-Type: application/force-download");
header("Content-Transfer-Encoding: binary");
ob_clean();
ob_end_flush();
readfile($path);    
}

function is_bot()
{

    $botlist = array("Teoma", "alexa", "froogle", "Gigabot", "inktomi",
    "looksmart", "URL_Spider_SQL", "Firefly", "NationalDirectory",
    "Ask Jeeves", "TECNOSEEK", "InfoSeek", "WebFindBot", "girafabot",
    "crawler", "www.galaxy.com", "Googlebot", "Scooter", "Slurp",
    "msnbot", "appie", "FAST", "WebBug", "Spade", "ZyBorg", "rabaz",
    "Baiduspider", "Feedfetcher-Google", "TechnoratiSnoop", "Rankivabot",
    "Mediapartners-Google", "Sogou web spider", "WebAlta Crawler","TweetmemeBot",
    "Butterfly","Twitturls","Me.dium","Twiceler");

    foreach($botlist as $bot)
    {
        if(strpos($_SERVER['HTTP_USER_AGENT'],$bot)!==false)
        return true;    // Is a bot
    }

    return false;
}

?>