sprawdz_ip

<?php

function my_globals()
{
    date_default_timezone_set('CET');
    $GLOBALS["dir_log"] = "katalog_logow";
    $GLOBALS["file_log"] = $GLOBALS["dir_log"] . "/log_" . date("d-m-Y") . ".html";
    $GLOBALS["cook_name"] = "essid";
    $GLOBALS["cook_data"] = "";
    $GLOBALS["def_img_path"] = "obrazki";
    $GLOBALS["def_img_cookie_path"] = "obrazki_ciacho";
}

function my_mkdir()
{
    if(!file_exists($GLOBALS["dir_log"]))
    {
        mkdir($GLOBALS["dir_log"], 0755, true);
    }
}

function my_cookie_enc()
{
    setcookie($GLOBALS["cook_name"], base64_encode(gzcompress(serialize($GLOBALS["cook_data"]), 6)), time() + 31536000, "/");
}

function my_cookie_dec()
{
    if(($x = base64_decode($_COOKIE[$GLOBALS["cook_name"]])) !== false && ($x = gzuncompress($x)) !== false && ($x = unserialize($x)) !== false)
    {
        $GLOBALS["cook_data"] = $x;
        return true;
    }
    return false;
}

function check_cookie()
{
    if(isset($_COOKIE[$GLOBALS["cook_name"]]) && @my_cookie_dec())
    {
        if($_SERVER['REMOTE_ADDR'] != $GLOBALS["cook_data"]["cip"])
        {
            $GLOBALS["cook_data"]["pip"] = $GLOBALS["cook_data"]["cip"];
            $GLOBALS["cook_data"]["cip"] = $_SERVER['REMOTE_ADDR'];
        }
        $GLOBALS["cook_data"]["c"]++;
    }
    else
    {
        $GLOBALS["cook_data"] = array("cip" => $_SERVER['REMOTE_ADDR'], "pip" => "", "w" => sha1(mt_rand() . ":" . $_SERVER['REMOTE_ADDR'] . $_SERVER['HTTP_USER_AGENT']), "c" => 0);
    }

    my_cookie_enc();
}

function save_log()
{
    $ip = $_SERVER['REMOTE_ADDR'];
    # $host = $_SERVER['REMOTE_HOST'];
    $host = gethostbyaddr($ip);
    $page = $_SERVER['REQUEST_URI'];
    $refer = $_SERVER['HTTP_REFERER'];
    $date_time = date("l, j F Y, G:i");
    $agent = $_SERVER['HTTP_USER_AGENT'];

    if(($fp = fopen($GLOBALS["file_log"], "a")) !== false)
    {
        if(flock($fp, LOCK_EX))
        {
            fputs($fp, "<b>$date_time</b><br /><b>IP: </b>$ip<br /><b>Prev IP: </b>" . $GLOBALS["cook_data"]["pip"] . "<br /><b>Host: </b>$host<br /><b>UID: </b>" . $GLOBALS["cook_data"]["w"] . "<br /><b>Page: </b>$page<br /><b>Refer: </b>$refer<br><b>Useragent: </b>$agent<br /><b>Count: </b>" . $GLOBALS["cook_data"]["c"] . "<br /><br />");
            flock($fp, LOCK_UN);
        }
        fclose($fp);
    }
}

function no_cache_headers()
{
    header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");
    header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
    header("Cache-Control: no-store, no-cache, must-revalidate");
    header("Cache-Control: post-check=0, pre-check=0", false);
    header("Pragma: no-cache");
}

function show_img()
{
    no_cache_headers();

    if(
    file_exists($img = $GLOBALS["def_img_cookie_path"] . "/" . $_GET["name"] . "_" . $GLOBALS["cook_data"]["w"] . "." . $_GET["ext"]) ||
    file_exists($img = $GLOBALS["def_img_path"] . "/" . $_GET["name"] . "." . $_GET["ext"]))
    {
        header("Content-type: image/" . $_GET["ext"]);
        readfile($img);
    }
    else
    {
        header("Content-type: image/gif");
        echo "\x47\x49\x46\x38\x39\x61\x01\x00\x01\x00\x80\x00\x00\xFF\xFF\xFF\xFF\xFF\xFF\x21\xF9\x04\x01\x0A\x00\x01\x00\x2C\x00\x00\x00\x00\x01\x00\x01\x00\x00\x02\x02\x4C\x01\x00\x3B";
    }
}

function main()
{
    my_globals();
    my_mkdir();
    check_cookie();
    save_log();
    show_img();
}

@main()
?>