[magnus]

Perform the following file edits in order to replace the default CAPTCHA displayed to guests when using "Contact Us" with a reCAPTCHA
[hr]-[/hr]
In sendmessage.php - BE SURE TO MAKE A BACKUP BEFORE EDITING!

1. FIND:
   
   PHP Code:

       if (!$vbulletin->userinfo['userid'] AND $vbulletin->options['contactustype'] == 2 AND $vbulletin->options['regimagetype'])
    {
        require_once(DIR . '/includes/functions_regimage.php');
        if (!verify_regimage_hash($vbulletin->GPC['imagehash'], $vbulletin->GPC['imagestamp']))
        {
            $errors[] = fetch_error('register_imagecheck');
        }
    } 

   REPLACE WITH:
   
   PHP Code:

       if (!$vbulletin->userinfo['userid'] AND $vbulletin->options['contactustype'] == 2 AND $vbulletin->options['regimagetype'])
    {
        require_once(DIR . '/includes/functions_recaptcha.php');
        $resp = recaptcha_check_answer($vbulletin->options['recaptcha_privatekey'],
                        $_SERVER["REMOTE_ADDR"],
                        $_POST["recaptcha_challenge_field"],
                        $_POST["recaptcha_response_field"]);
        if (!$resp->is_valid)
        {
            $errors[] = fetch_error('register_imagecheck');
        }
    } 

2. FIND AND REMOVE:
   
   PHP Code:

           if ($imagehash)
        {
            $db->query_write("DELETE FROM " . TABLE_PREFIX . "regimage WHERE regimagehash = '" . $db->escape_string($imagehash) . "'");
        } 

3. FIND:
   
   PHP Code:

       if (!$vbulletin->userinfo['userid'] AND $vbulletin->options['contactustype'] == 2 AND $vbulletin->options['regimagetype'])
    {
        require_once(DIR . '/includes/functions_regimage.php');
        $imagehash = fetch_regimage_hash();
        eval('$imagereg = "' . fetch_template('imagereg') . '";');
    } 

   REPLACE WITH:
   
   PHP Code:

       if (!$vbulletin->userinfo['userid'] AND $vbulletin->options['contactustype'] == 2 AND $vbulletin->options['regimagetype'])
    {
        require_once(DIR . '/includes/functions_recaptcha.php');
        $imagereg = recaptcha_get_html($vbulletin->options['recaptcha_publickey']);
    } 

4. FIND:
   
   PHP Code:

       // image verification
    if (!$vbulletin->userinfo['userid'] AND $vbulletin->options['regimagetype'])
    {
        require_once(DIR . '/includes/functions_regimage.php');
        $imagehash = fetch_regimage_hash();
        eval('$imagereg = "' . fetch_template('imagereg') . '";');
    } 

   REPLACE WITH:
   
   PHP Code:

       // image verification
    if (!$vbulletin->userinfo['userid'] AND $vbulletin->options['regimagetype'])
    {
        require_once(DIR . '/includes/functions_recaptcha.php');
        $imagereg = recaptcha_get_html($vbulletin->options['recaptcha_publickey']);
    } 

5. FIND:
   
   PHP Code:

       if (!$vbulletin->userinfo['userid'] AND $vbulletin->options['regimagetype'])
    {
        require_once(DIR . '/includes/functions_regimage.php');
        if (!verify_regimage_hash($vbulletin->GPC['imagehash'], $vbulletin->GPC['imagestamp']))
        {
            standard_error(fetch_error('register_imagecheck'));
        }
    } 

   REPLACE WITH:
   
   PHP Code:

       if (!$vbulletin->userinfo['userid'] AND $vbulletin->options['regimagetype'])
    {
        require_once(DIR . '/includes/functions_recaptcha.php');

        $resp = recaptcha_check_answer ($vbulletin->options['recaptcha_privatekey'],
                        $_SERVER["REMOTE_ADDR"],
                        $_POST["recaptcha_challenge_field"],
                        $_POST["recaptcha_response_field"]);

        if (!$resp->is_valid)
        {
            standard_error(fetch_error('register_imagecheck'));
        }
    } 

6. FIND AND REMOVE: THERE WILL BE TWO (2) OCCURANCES OF THIS STRING. REMOVE BOTH
   
   PHP Code:

           'imagestamp'    => TYPE_STR,
        'imagehash'     => TYPE_STR,