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Original topic: <strike>here</strike>

Hack Name: Captcha Hack
Description: Show a image inside your comments form with a scrambled code in it. Enter the code for confirmation.
Author: FI-DD
Downloadable File: Download, extract the files and upload them to your main cutenews folder. Read the readme and follow the instruction.
Captcha1: Use these files if you have only 1 cutenews include on your newspage. Comments in popup still works.
Captcha2: Use these files if you have more then 1 cutenews include on your newspage. Comments in popup don't work here.

The hack itself: see orignal topic for the hack. READ THE INSTRUCTIONS really carefull and double check everything you do. Many have had problems because they overlooked something.
ATTENTION: not all servers support this hack!! You need GD2 Lib support.

Original topic: <strike>here</strike>

Hack Name: Spam protection with random bot word.
Description: people will have to fill in this word before the comment can be added to the database. This word is a generated String of letters and numbers. This hack is updated on 06/08/2008 to improve the effectiveness. It should work now with more than 1 include code, though that's unconfirmed!
Author: FUNimations
Extra credits: Ifa
1. open the file that has your CN include code ... important make back-up first.
add

<?php session_start(); ?>

At the top of that page. This must be the very first PHP code!!
If you get a warning/error about sessions on your site. This will be due to the fact you have another PHP script in there that also uses sessions.
Ask their support what to do. And tell them that session_start() already happens before you use their script. This function is a PHP function and is not limited to a script, but can be used by all scripts in that page.

2. open shows.inc.php in inc folder
find 

$mail = trim($mail);

add under

 $test = trim($_POST[$_SESSION['spam']]);

find

<input type=\"hidden\" name=\"ucat\" value=\"$ucat\" />

and radd under

<input type=\"hidden\" name=\"".$_SESSION['spam']."\" value=\"$test\" />

find

$mail                 = replace_comment("add", preg_replace("/\n/", "",$mail));

add under

$test                = replace_comment("add", preg_replace("/\n/", "",$test));

find

if($name == " " or $name == ""){

add above

if($_SESSION[$_SESSION['spam']] == $test ) {$ok = TRUE;}
    else
        { echo("<div style=\"text-align: center;color:white;background-color:darkred;\"> Your write too long!
 [url=] go back [/url] </div>");
                $CN_HALT = TRUE;
                break 1;
        }

Please ... before you save show.inc.php , make sure javascript doesn't have a space like this:
java script:history.go(-1)

find

$template_form = str_replace("{smilies}", $smilies_form, $template_form);

add under

if( !isset($input_name) ){
function code($nc, $a='abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0') {
       $l=strlen($a)-1; $r='';
       while($nc-->0) $r.=$a{mt_rand(0,$l)};
       return $r;
    }
$input_name = code(10);
$_SESSION['spam'] = $input_name;
$code = code(5);
$_SESSION[$input_name] = $code;
}
    $template_form = str_replace("{smilies}", $smilies_form, $template_form);
    $template_form = str_replace("{bot-inputname}", $_SESSION['spam'] ,$template_form);
    $template_form = str_replace("{bot-word}", $_SESSION[$_SESSION['spam']] ,$template_form);

3. Go to the comments form template.
Put something along this piece of code goes inside the comments form template.

<tr>
<td width="450" height="1"> 
<small>Type {bot-word} in the box:</small>
</td>
<td width="450" height="1"><small><input type="text" name="{bot-inputname}" tabindex="1"> (anti-spam)</small>
</td>
</tr>