校验和失败

Question

我有这个脚本，它产生以下错误： 001 Checksum failure

这是脚本，我不知道它有什么问题，你能帮我吗？

<?php 

/*  

  Access control for TargetPay Pay per Use  
  (C) TargetMedia 2007 

  Upload this file in the protected directory and make sure  
  that .htaccess support is enabled. 

  MODIFICATIONS IN THIS CODE ARE ALLOWED BUT NOT SUPPORTED 

  Product-ID: 28717    Generated: 16-01-2011 14:57:05 

*/ 

define ("CHECKSUM", "739b54dc26"); 
define ("ERR001", "001 Checksum failure"); 
define ("ERR002", "002 Can't open .htaccess for writing. Check rights."); 
define ("ERR003", "003 I/O Error, cannot write to .htaccess. Disk full?");

list($thispage) = explode("?", 
    "http://".$_SERVER["HTTP_HOST"].$_SERVER["REQUEST_URI"]); 

$payscreen = "http://www.targetpay.nl/send/?id=28717&rtlo=51090". 
    "&pm=".urlencode("inline=1"). 
    "&ref=".urlencode($thispage); 

header ("Content-type: text/plain"); 

if ($_GET["checksum"] != CHECKSUM) { 
    die (ERR001); 
    } 

function ip2hex ($ip) { 
    list ($a,$b,$c,$d) = explode(".", $ip); 
    return    str_pad(dechex($a),2,"0",STR_PAD_LEFT). 
            str_pad(dechex($b),2,"0",STR_PAD_LEFT). 
            str_pad(dechex($c),2,"0",STR_PAD_LEFT). 
            str_pad(dechex($d),2,"0",STR_PAD_LEFT); 
    } 

function hex2ip ($hex) { 
    return  hexdec(substr($hex,0,2)).".". 
            hexdec(substr($hex,2,2)).".". 
            hexdec(substr($hex,4,2)).".". 
            hexdec(substr($hex,6,2)); 
    } 

function parse ($whitelist, $payscreen) { 
    $here = substr($_SERVER["SCRIPT_FILENAME"], 
        strrpos ($_SERVER["SCRIPT_FILENAME"], "/") + 1); 

    $o =    "ErrorDocument 403 $payscreen\n". 
            "<Files .htaccess>\n". 
            "Order allow,deny\n". 
            "Deny from all\n". 
            "</Files>\n". 
            "<Files $here>\n". 
            "Order allow,deny\n". 
            "Allow from all\n". 
            "</Files>\n". 
            "Order deny,allow\n". 
            "Deny from all\n"; 

    if ((!$whitelist) || ($whitelist=="empty")) { 
        return $o; } 

    $iplist = explode(",", $whitelist); 
    foreach ($iplist as $hex) { 
        $ip = hex2ip ($hex); 
        if ($ip) { 
            $o .= "Allow from $ip\n"; 
            } 
        } 
    return $o; 
    } 

if ($_GET["register"]) { 
    $fp = @fopen(".htaccess", "w+"); 
    if (!$fp) { 
        die (ERR002); 
        } 
    if (!@fwrite ($fp, parse($_GET["register"],$payscreen))) { 
        die (ERR003); 
        } 
    @fclose ($fp); 
    echo "000 OK"; 
    } 

if ($_GET["reset"]) { 
    @unlink (".htaccess"); 
    $fp = @fopen(".htaccess", "w+"); 
    if (!$fp) { 
        die (ERR002); 
        } 
    if (!@fwrite ($fp, parse("",$payscreen))) { 
        die (ERR003); 
        } 
    @fclose ($fp); 
    echo "000 RESET OK"; 
    } 

if ($_GET["dump"]) { 
    echo @implode("",file(".htaccess")); 
    echo "\n-EOF-"; 
    } 
?>

非常感谢！

Answer 1

我不认为这是一个错误。实际上

if($_GET["checksum"] != CHECKSUM) { 
    die (ERR001);
}

这个条件已经成立，所以输出没有错误。
因此，只需从最初获取数据的任何位置检查 GET 数据即可。这肯定不是程序错误。

Answer 2

你需要通过 GET 调用脚本，至少使用这个参数：

checksum=739b54dc26

所以如果你的页面是 test.php，在本地主机上，这样调用它（当然你可以在请求字符串中添加其他参数）：

http://localhost/test.php?checksum=739b54dc26

希望它有帮助